Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

44 files changed, 16315 insertions, 0 deletions

diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
new file mode 100644
index 000000000..04ca3d1c2
--- /dev/null
+++ b/drivers/input/joystick/Kconfig
@@ -0,0 +1,415 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Joystick driver configuration
+#
+menuconfig INPUT_JOYSTICK
+	bool "Joysticks/Gamepads"
+	depends on !UML
+	help
+	  If you have a joystick, 6dof controller, gamepad, steering wheel,
+	  weapon control system or something like that you can say Y here
+	  and the list of supported devices will be displayed. This option
+	  doesn't affect the kernel.
+
+	  Please read the file <file:Documentation/input/joydev/joystick.rst> which
+	  contains more information.
+
+if INPUT_JOYSTICK
+
+config JOYSTICK_ANALOG
+	tristate "Classic PC analog joysticks and gamepads"
+	select GAMEPORT
+	help
+	  Say Y here if you have a joystick that connects to the PC
+	  gameport. In addition to the usual PC analog joystick, this driver
+	  supports many extensions, including joysticks with throttle control,
+	  with rudders, additional hats and buttons compatible with CH
+	  Flightstick Pro, ThrustMaster FCS, 6 and 8 button gamepads, or
+	  Saitek Cyborg joysticks.
+
+	  Please read the file <file:Documentation/input/joydev/joystick.rst> which
+	  contains more information.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called analog.
+
+config JOYSTICK_A3D
+	tristate "Assassin 3D and MadCatz Panther devices"
+	select GAMEPORT
+	help
+	  Say Y here if you have an FPGaming or MadCatz controller using the
+	  A3D protocol over the PC gameport.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called a3d.
+
+config JOYSTICK_ADC
+	tristate "Simple joystick connected over ADC"
+	depends on IIO
+	select IIO_BUFFER
+	select IIO_BUFFER_CB
+	help
+	  Say Y here if you have a simple joystick connected over ADC.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called adc-joystick.
+
+config JOYSTICK_ADI
+	tristate "Logitech ADI digital joysticks and gamepads"
+	select GAMEPORT
+	depends on ADI!=m # avoid module name conflict
+	help
+	  Say Y here if you have a Logitech controller using the ADI
+	  protocol over the PC gameport.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called adi.
+
+config JOYSTICK_COBRA
+	tristate "Creative Labs Blaster Cobra gamepad"
+	select GAMEPORT
+	help
+	  Say Y here if you have a Creative Labs Blaster Cobra gamepad.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called cobra.
+
+config JOYSTICK_GF2K
+	tristate "Genius Flight2000 Digital joysticks and gamepads"
+	select GAMEPORT
+	help
+	  Say Y here if you have a Genius Flight2000 or MaxFighter digitally
+	  communicating joystick or gamepad.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called gf2k.
+
+config JOYSTICK_GRIP
+	tristate "Gravis GrIP joysticks and gamepads"
+	select GAMEPORT
+	help
+	  Say Y here if you have a Gravis controller using the GrIP protocol
+	  over the PC gameport.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called grip.
+
+config JOYSTICK_GRIP_MP
+	tristate "Gravis GrIP MultiPort"
+	select GAMEPORT
+	help
+	  Say Y here if you have the original Gravis GrIP MultiPort, a hub
+	  that connects to the gameport and you connect gamepads to it.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called grip_mp.
+
+config JOYSTICK_GUILLEMOT
+	tristate "Guillemot joysticks and gamepads"
+	select GAMEPORT
+	help
+	  Say Y here if you have a Guillemot joystick using a digital
+	  protocol over the PC gameport.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called guillemot.
+
+config JOYSTICK_INTERACT
+	tristate "InterAct digital joysticks and gamepads"
+	select GAMEPORT
+	help
+	  Say Y here if you have an InterAct gameport or joystick
+	  communicating digitally over the gameport.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called interact.
+
+config JOYSTICK_SIDEWINDER
+	tristate "Microsoft SideWinder digital joysticks and gamepads"
+	select GAMEPORT
+	help
+	  Say Y here if you have a Microsoft controller using the Digital
+	  Overdrive protocol over PC gameport.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sidewinder.
+
+config JOYSTICK_TMDC
+	tristate "ThrustMaster DirectConnect joysticks and gamepads"
+	select GAMEPORT
+	help
+	  Say Y here if you have a ThrustMaster controller using the
+	  DirectConnect (BSP) protocol over the PC gameport.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tmdc.
+
+source "drivers/input/joystick/iforce/Kconfig"
+
+config JOYSTICK_WARRIOR
+	tristate "Logitech WingMan Warrior joystick"
+	select SERIO
+	help
+	  Say Y here if you have a Logitech WingMan Warrior joystick connected
+	  to your computer's serial port.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called warrior.
+
+config JOYSTICK_MAGELLAN
+	tristate "LogiCad3d Magellan/SpaceMouse 6dof controllers"
+	select SERIO
+	help
+	  Say Y here if you have a Magellan or Space Mouse 6DOF controller
+	  connected to your computer's serial port.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called magellan.
+
+config JOYSTICK_SPACEORB
+	tristate "SpaceTec SpaceOrb/Avenger 6dof controllers"
+	select SERIO
+	help
+	  Say Y here if you have a SpaceOrb 360 or SpaceBall Avenger 6DOF
+	  controller connected to your computer's serial port.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called spaceorb.
+
+config JOYSTICK_SPACEBALL
+	tristate "SpaceTec SpaceBall 6dof controllers"
+	select SERIO
+	help
+	  Say Y here if you have a SpaceTec SpaceBall 2003/3003/4000 FLX
+	  controller connected to your computer's serial port. For the
+	  SpaceBall 4000 USB model, use the USB HID driver.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called spaceball.
+
+config JOYSTICK_STINGER
+	tristate "Gravis Stinger gamepad"
+	select SERIO
+	help
+	  Say Y here if you have a Gravis Stinger connected to one of your
+	  serial ports.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called stinger.
+
+config JOYSTICK_TWIDJOY
+	tristate "Twiddler as a joystick"
+	select SERIO
+	help
+	  Say Y here if you have a Handykey Twiddler connected to your
+	  computer's serial port and want to use it as a joystick.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called twidjoy.
+
+config JOYSTICK_ZHENHUA
+	tristate "5-byte Zhenhua RC transmitter"
+	select SERIO
+	select BITREVERSE
+	help
+	  Say Y here if you have a Zhen Hua PPM-4CH transmitter which is
+	  supplied with a ready to fly micro electric indoor helicopters
+	  such as EasyCopter, Lama, MiniCopter, DragonFly or Jabo and want
+	  to use it via serial cable as a joystick.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called zhenhua.
+
+config JOYSTICK_DB9
+	tristate "Multisystem, Sega Genesis, Saturn joysticks and gamepads"
+	depends on PARPORT
+	help
+	  Say Y here if you have a Sega Master System gamepad, Sega Genesis
+	  gamepad, Sega Saturn gamepad, or a Multisystem -- Atari, Amiga,
+	  Commodore, Amstrad CPC joystick connected to your parallel port.
+	  For more information on how to use the driver please read
+	  <file:Documentation/input/devices/joystick-parport.rst>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called db9.
+
+config JOYSTICK_GAMECON
+	tristate "Multisystem, NES, SNES, N64, PSX joysticks and gamepads"
+	depends on PARPORT
+	select INPUT_FF_MEMLESS
+	help
+	  Say Y here if you have a Nintendo Entertainment System gamepad,
+	  Super Nintendo Entertainment System gamepad, Nintendo 64 gamepad,
+	  Sony PlayStation gamepad or a Multisystem -- Atari, Amiga,
+	  Commodore, Amstrad CPC joystick connected to your parallel port.
+	  For more information on how to use the driver please read
+	  <file:Documentation/input/devices/joystick-parport.rst>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called gamecon.
+
+config JOYSTICK_TURBOGRAFX
+	tristate "Multisystem joysticks via TurboGraFX device"
+	depends on PARPORT
+	help
+	  Say Y here if you have the TurboGraFX interface by Steffen Schwenke,
+	  and want to use it with Multisystem -- Atari, Amiga, Commodore,
+	  Amstrad CPC joystick. For more information on how to use the driver
+	  please read <file:Documentation/input/devices/joystick-parport.rst>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called turbografx.
+
+config JOYSTICK_AMIGA
+	tristate "Amiga joysticks"
+	depends on AMIGA
+	help
+	  Say Y here if you have an Amiga with a digital joystick connected
+	  to it.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called amijoy.
+
+config JOYSTICK_AS5011
+	tristate "Austria Microsystem AS5011 joystick"
+	depends on I2C
+	help
+	  Say Y here if you have an AS5011 digital joystick connected to your
+	  system.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called as5011.
+
+config JOYSTICK_JOYDUMP
+	tristate "Gameport data dumper"
+	select GAMEPORT
+	help
+	  Say Y here if you want to dump data from your joystick into the system
+	  log for debugging purposes. Say N if you are making a production
+	  configuration or aren't sure.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called joydump.
+
+config JOYSTICK_XPAD
+	tristate "X-Box gamepad support"
+	depends on USB_ARCH_HAS_HCD
+	select USB
+	help
+	  Say Y here if you want to use the X-Box pad with your computer.
+	  Make sure to say Y to "Joystick support" (CONFIG_INPUT_JOYDEV)
+	  and/or "Event interface support" (CONFIG_INPUT_EVDEV) as well.
+
+	  For information about how to connect the X-Box pad to USB, see
+	  <file:Documentation/input/devices/xpad.rst>.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called xpad.
+
+config JOYSTICK_XPAD_FF
+	bool "X-Box gamepad rumble support"
+	depends on JOYSTICK_XPAD && INPUT
+	select INPUT_FF_MEMLESS
+	help
+	  Say Y here if you want to take advantage of xbox 360 rumble features.
+
+config JOYSTICK_XPAD_LEDS
+	bool "LED Support for Xbox360 controller 'BigX' LED"
+	depends on JOYSTICK_XPAD && (LEDS_CLASS=y || LEDS_CLASS=JOYSTICK_XPAD)
+	help
+	  This option enables support for the LED which surrounds the Big X on
+	  XBox 360 controller.
+
+config JOYSTICK_WALKERA0701
+	tristate "Walkera WK-0701 RC transmitter"
+	depends on HIGH_RES_TIMERS && PARPORT
+	help
+	  Say Y or M here if you have a Walkera WK-0701 transmitter which is
+	  supplied with a ready to fly Walkera helicopters such as HM36,
+	  HM37, HM60 and want to use it via parport as a joystick. More
+	  information is available: <file:Documentation/input/devices/walkera0701.rst>
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called walkera0701.
+
+config JOYSTICK_MAPLE
+	tristate "Dreamcast control pad"
+	depends on MAPLE
+	help
+	  Say Y here if you have a SEGA Dreamcast and want to use your
+	  controller as a joystick.
+
+	  Most Dreamcast users will say Y.
+
+	  To compile this as a module choose M here: the module will be called
+	  maplecontrol.
+
+config JOYSTICK_PSXPAD_SPI
+	tristate "PlayStation 1/2 joypads via SPI interface"
+	depends on SPI
+	help
+	  Say Y here if you wish to connect PlayStation 1/2 joypads
+	  via SPI interface.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called psxpad-spi.
+
+config JOYSTICK_PSXPAD_SPI_FF
+	bool "PlayStation 1/2 joypads force feedback (rumble) support"
+	depends on JOYSTICK_PSXPAD_SPI
+	select INPUT_FF_MEMLESS
+	help
+	  Say Y here if you want to take advantage of PlayStation 1/2
+	  joypads rumble features.
+
+	  To drive rumble motor a dedicated power supply is required.
+
+config JOYSTICK_PXRC
+	tristate "PhoenixRC Flight Controller Adapter"
+	depends on USB_ARCH_HAS_HCD
+	select USB
+	help
+	  Say Y here if you want to use the PhoenixRC Flight Controller Adapter.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pxrc.
+
+config JOYSTICK_QWIIC
+	tristate "SparkFun Qwiic Joystick"
+	depends on I2C
+	help
+	  Say Y here if you want to use the SparkFun Qwiic Joystick.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called qwiic-joystick.
+
+config JOYSTICK_FSIA6B
+	tristate "FlySky FS-iA6B RC Receiver"
+	select SERIO
+	help
+	  Say Y here if you use a FlySky FS-i6 RC remote control along with the
+	  FS-iA6B RC receiver as a joystick input device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called fsia6b.
+
+config JOYSTICK_N64
+	bool "N64 controller"
+	depends on MACH_NINTENDO64
+	help
+	  Say Y here if you want enable support for the four
+	  built-in controller ports on the Nintendo 64 console.
+
+config JOYSTICK_SENSEHAT
+	tristate "Raspberry Pi Sense HAT joystick"
+	depends on INPUT && I2C
+	depends on HAS_IOMEM
+	select MFD_SIMPLE_MFD_I2C
+	help
+	  Say Y here if you want to enable the driver for the
+	  the Raspberry Pi Sense HAT.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sensehat_joystick.
+
+endif
diff --git a/drivers/input/joystick/Makefile b/drivers/input/joystick/Makefile
new file mode 100644
index 000000000..3937535f0
--- /dev/null
+++ b/drivers/input/joystick/Makefile
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the input core drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_JOYSTICK_A3D)		+= a3d.o
+obj-$(CONFIG_JOYSTICK_ADC)		+= adc-joystick.o
+obj-$(CONFIG_JOYSTICK_ADI)		+= adi.o
+obj-$(CONFIG_JOYSTICK_AMIGA)		+= amijoy.o
+obj-$(CONFIG_JOYSTICK_AS5011)		+= as5011.o
+obj-$(CONFIG_JOYSTICK_ANALOG)		+= analog.o
+obj-$(CONFIG_JOYSTICK_COBRA)		+= cobra.o
+obj-$(CONFIG_JOYSTICK_DB9)		+= db9.o
+obj-$(CONFIG_JOYSTICK_FSIA6B)		+= fsia6b.o
+obj-$(CONFIG_JOYSTICK_GAMECON)		+= gamecon.o
+obj-$(CONFIG_JOYSTICK_GF2K)		+= gf2k.o
+obj-$(CONFIG_JOYSTICK_GRIP)		+= grip.o
+obj-$(CONFIG_JOYSTICK_GRIP_MP)		+= grip_mp.o
+obj-$(CONFIG_JOYSTICK_GUILLEMOT)	+= guillemot.o
+obj-$(CONFIG_JOYSTICK_IFORCE)		+= iforce/
+obj-$(CONFIG_JOYSTICK_INTERACT)		+= interact.o
+obj-$(CONFIG_JOYSTICK_JOYDUMP)		+= joydump.o
+obj-$(CONFIG_JOYSTICK_MAGELLAN)		+= magellan.o
+obj-$(CONFIG_JOYSTICK_MAPLE)		+= maplecontrol.o
+obj-$(CONFIG_JOYSTICK_N64)		+= n64joy.o
+obj-$(CONFIG_JOYSTICK_PSXPAD_SPI)	+= psxpad-spi.o
+obj-$(CONFIG_JOYSTICK_PXRC)		+= pxrc.o
+obj-$(CONFIG_JOYSTICK_QWIIC)		+= qwiic-joystick.o
+obj-$(CONFIG_JOYSTICK_SENSEHAT)	+= sensehat-joystick.o
+obj-$(CONFIG_JOYSTICK_SIDEWINDER)	+= sidewinder.o
+obj-$(CONFIG_JOYSTICK_SPACEBALL)	+= spaceball.o
+obj-$(CONFIG_JOYSTICK_SPACEORB)		+= spaceorb.o
+obj-$(CONFIG_JOYSTICK_STINGER)		+= stinger.o
+obj-$(CONFIG_JOYSTICK_TMDC)		+= tmdc.o
+obj-$(CONFIG_JOYSTICK_TURBOGRAFX)	+= turbografx.o
+obj-$(CONFIG_JOYSTICK_TWIDJOY)		+= twidjoy.o
+obj-$(CONFIG_JOYSTICK_WARRIOR)		+= warrior.o
+obj-$(CONFIG_JOYSTICK_WALKERA0701)	+= walkera0701.o
+obj-$(CONFIG_JOYSTICK_XPAD)		+= xpad.o
+obj-$(CONFIG_JOYSTICK_ZHENHUA)		+= zhenhua.o
diff --git a/drivers/input/joystick/a3d.c b/drivers/input/joystick/a3d.c
new file mode 100644
index 000000000..fd1827baf
--- /dev/null
+++ b/drivers/input/joystick/a3d.c
@@ -0,0 +1,396 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * FP-Gaming Assassin 3D joystick driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"FP-Gaming Assassin 3D joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define A3D_MAX_START		600	/* 600 us */
+#define A3D_MAX_STROBE		80	/* 80 us */
+#define A3D_MAX_LENGTH		40	/* 40*3 bits */
+
+#define A3D_MODE_A3D		1	/* Assassin 3D */
+#define A3D_MODE_PAN		2	/* Panther */
+#define A3D_MODE_OEM		3	/* Panther OEM version */
+#define A3D_MODE_PXL		4	/* Panther XL */
+
+static char *a3d_names[] = { NULL, "FP-Gaming Assassin 3D", "MadCatz Panther", "OEM Panther",
+			"MadCatz Panther XL", "MadCatz Panther XL w/ rudder" };
+
+struct a3d {
+	struct gameport *gameport;
+	struct gameport *adc;
+	struct input_dev *dev;
+	int axes[4];
+	int buttons;
+	int mode;
+	int length;
+	int reads;
+	int bads;
+	char phys[32];
+};
+
+/*
+ * a3d_read_packet() reads an Assassin 3D packet.
+ */
+
+static int a3d_read_packet(struct gameport *gameport, int length, char *data)
+{
+	unsigned long flags;
+	unsigned char u, v;
+	unsigned int t, s;
+	int i;
+
+	i = 0;
+	t = gameport_time(gameport, A3D_MAX_START);
+	s = gameport_time(gameport, A3D_MAX_STROBE);
+
+	local_irq_save(flags);
+	gameport_trigger(gameport);
+	v = gameport_read(gameport);
+
+	while (t > 0 && i < length) {
+		t--;
+		u = v; v = gameport_read(gameport);
+		if (~v & u & 0x10) {
+			data[i++] = v >> 5;
+			t = s;
+		}
+	}
+
+	local_irq_restore(flags);
+
+	return i;
+}
+
+/*
+ * a3d_csum() computes checksum of triplet packet
+ */
+
+static int a3d_csum(char *data, int count)
+{
+	int i, csum = 0;
+
+	for (i = 0; i < count - 2; i++)
+		csum += data[i];
+	return (csum & 0x3f) != ((data[count - 2] << 3) | data[count - 1]);
+}
+
+static void a3d_read(struct a3d *a3d, unsigned char *data)
+{
+	struct input_dev *dev = a3d->dev;
+
+	switch (a3d->mode) {
+
+		case A3D_MODE_A3D:
+		case A3D_MODE_OEM:
+		case A3D_MODE_PAN:
+
+			input_report_rel(dev, REL_X, ((data[5] << 6) | (data[6] << 3) | data[ 7]) - ((data[5] & 4) << 7));
+			input_report_rel(dev, REL_Y, ((data[8] << 6) | (data[9] << 3) | data[10]) - ((data[8] & 4) << 7));
+
+			input_report_key(dev, BTN_RIGHT,  data[2] & 1);
+			input_report_key(dev, BTN_LEFT,   data[3] & 2);
+			input_report_key(dev, BTN_MIDDLE, data[3] & 4);
+
+			input_sync(dev);
+
+			a3d->axes[0] = ((signed char)((data[11] << 6) | (data[12] << 3) | (data[13]))) + 128;
+			a3d->axes[1] = ((signed char)((data[14] << 6) | (data[15] << 3) | (data[16]))) + 128;
+			a3d->axes[2] = ((signed char)((data[17] << 6) | (data[18] << 3) | (data[19]))) + 128;
+			a3d->axes[3] = ((signed char)((data[20] << 6) | (data[21] << 3) | (data[22]))) + 128;
+
+			a3d->buttons = ((data[3] << 3) | data[4]) & 0xf;
+
+			break;
+
+		case A3D_MODE_PXL:
+
+			input_report_rel(dev, REL_X, ((data[ 9] << 6) | (data[10] << 3) | data[11]) - ((data[ 9] & 4) << 7));
+			input_report_rel(dev, REL_Y, ((data[12] << 6) | (data[13] << 3) | data[14]) - ((data[12] & 4) << 7));
+
+			input_report_key(dev, BTN_RIGHT,  data[2] & 1);
+			input_report_key(dev, BTN_LEFT,   data[3] & 2);
+			input_report_key(dev, BTN_MIDDLE, data[3] & 4);
+			input_report_key(dev, BTN_SIDE,   data[7] & 2);
+			input_report_key(dev, BTN_EXTRA,  data[7] & 4);
+
+			input_report_abs(dev, ABS_X,        ((signed char)((data[15] << 6) | (data[16] << 3) | (data[17]))) + 128);
+			input_report_abs(dev, ABS_Y,        ((signed char)((data[18] << 6) | (data[19] << 3) | (data[20]))) + 128);
+			input_report_abs(dev, ABS_RUDDER,   ((signed char)((data[21] << 6) | (data[22] << 3) | (data[23]))) + 128);
+			input_report_abs(dev, ABS_THROTTLE, ((signed char)((data[24] << 6) | (data[25] << 3) | (data[26]))) + 128);
+
+			input_report_abs(dev, ABS_HAT0X, ( data[5]       & 1) - ((data[5] >> 2) & 1));
+			input_report_abs(dev, ABS_HAT0Y, ((data[5] >> 1) & 1) - ((data[6] >> 2) & 1));
+			input_report_abs(dev, ABS_HAT1X, ((data[4] >> 1) & 1) - ( data[3]       & 1));
+			input_report_abs(dev, ABS_HAT1Y, ((data[4] >> 2) & 1) - ( data[4]       & 1));
+
+			input_report_key(dev, BTN_TRIGGER, data[8] & 1);
+			input_report_key(dev, BTN_THUMB,   data[8] & 2);
+			input_report_key(dev, BTN_TOP,     data[8] & 4);
+			input_report_key(dev, BTN_PINKIE,  data[7] & 1);
+
+			input_sync(dev);
+
+			break;
+	}
+}
+
+
+/*
+ * a3d_poll() reads and analyzes A3D joystick data.
+ */
+
+static void a3d_poll(struct gameport *gameport)
+{
+	struct a3d *a3d = gameport_get_drvdata(gameport);
+	unsigned char data[A3D_MAX_LENGTH];
+
+	a3d->reads++;
+	if (a3d_read_packet(a3d->gameport, a3d->length, data) != a3d->length ||
+	    data[0] != a3d->mode || a3d_csum(data, a3d->length))
+		a3d->bads++;
+	else
+		a3d_read(a3d, data);
+}
+
+/*
+ * a3d_adc_cooked_read() copies the acis and button data to the
+ * callers arrays. It could do the read itself, but the caller could
+ * call this more than 50 times a second, which would use too much CPU.
+ */
+
+static int a3d_adc_cooked_read(struct gameport *gameport, int *axes, int *buttons)
+{
+	struct a3d *a3d = gameport->port_data;
+	int i;
+
+	for (i = 0; i < 4; i++)
+		axes[i] = (a3d->axes[i] < 254) ? a3d->axes[i] : -1;
+	*buttons = a3d->buttons;
+	return 0;
+}
+
+/*
+ * a3d_adc_open() is the gameport open routine. It refuses to serve
+ * any but cooked data.
+ */
+
+static int a3d_adc_open(struct gameport *gameport, int mode)
+{
+	struct a3d *a3d = gameport->port_data;
+
+	if (mode != GAMEPORT_MODE_COOKED)
+		return -1;
+
+	gameport_start_polling(a3d->gameport);
+	return 0;
+}
+
+/*
+ * a3d_adc_close() is a callback from the input close routine.
+ */
+
+static void a3d_adc_close(struct gameport *gameport)
+{
+	struct a3d *a3d = gameport->port_data;
+
+	gameport_stop_polling(a3d->gameport);
+}
+
+/*
+ * a3d_open() is a callback from the input open routine.
+ */
+
+static int a3d_open(struct input_dev *dev)
+{
+	struct a3d *a3d = input_get_drvdata(dev);
+
+	gameport_start_polling(a3d->gameport);
+	return 0;
+}
+
+/*
+ * a3d_close() is a callback from the input close routine.
+ */
+
+static void a3d_close(struct input_dev *dev)
+{
+	struct a3d *a3d = input_get_drvdata(dev);
+
+	gameport_stop_polling(a3d->gameport);
+}
+
+/*
+ * a3d_connect() probes for A3D joysticks.
+ */
+
+static int a3d_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct a3d *a3d;
+	struct input_dev *input_dev;
+	struct gameport *adc;
+	unsigned char data[A3D_MAX_LENGTH];
+	int i;
+	int err;
+
+	a3d = kzalloc(sizeof(struct a3d), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!a3d || !input_dev) {
+		err = -ENOMEM;
+		goto fail1;
+	}
+
+	a3d->dev = input_dev;
+	a3d->gameport = gameport;
+
+	gameport_set_drvdata(gameport, a3d);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	i = a3d_read_packet(gameport, A3D_MAX_LENGTH, data);
+
+	if (!i || a3d_csum(data, i)) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	a3d->mode = data[0];
+
+	if (!a3d->mode || a3d->mode > 5) {
+		printk(KERN_WARNING "a3d.c: Unknown A3D device detected "
+			"(%s, id=%d), contact <vojtech@ucw.cz>\n", gameport->phys, a3d->mode);
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	gameport_set_poll_handler(gameport, a3d_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	snprintf(a3d->phys, sizeof(a3d->phys), "%s/input0", gameport->phys);
+
+	input_dev->name = a3d_names[a3d->mode];
+	input_dev->phys = a3d->phys;
+	input_dev->id.bustype = BUS_GAMEPORT;
+	input_dev->id.vendor = GAMEPORT_ID_VENDOR_MADCATZ;
+	input_dev->id.product = a3d->mode;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &gameport->dev;
+	input_dev->open = a3d_open;
+	input_dev->close = a3d_close;
+
+	input_set_drvdata(input_dev, a3d);
+
+	if (a3d->mode == A3D_MODE_PXL) {
+
+		int axes[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER };
+
+		a3d->length = 33;
+
+		input_dev->evbit[0] |= BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY) |
+			BIT_MASK(EV_REL);
+		input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+		input_dev->absbit[0] |= BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
+			BIT_MASK(ABS_THROTTLE) | BIT_MASK(ABS_RUDDER) |
+			BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
+			BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y);
+		input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) |
+			BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) |
+			BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA);
+		input_dev->keybit[BIT_WORD(BTN_JOYSTICK)] |=
+			BIT_MASK(BTN_TRIGGER) | BIT_MASK(BTN_THUMB) |
+			BIT_MASK(BTN_TOP) | BIT_MASK(BTN_PINKIE);
+
+		a3d_read(a3d, data);
+
+		for (i = 0; i < 4; i++) {
+			if (i < 2)
+				input_set_abs_params(input_dev, axes[i],
+					48, input_abs_get_val(input_dev, axes[i]) * 2 - 48, 0, 8);
+			else
+				input_set_abs_params(input_dev, axes[i], 2, 253, 0, 0);
+			input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
+		}
+
+	} else {
+		a3d->length = 29;
+
+		input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+		input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+		input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) |
+			BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE);
+
+		a3d_read(a3d, data);
+
+		if (!(a3d->adc = adc = gameport_allocate_port()))
+			printk(KERN_ERR "a3d: Not enough memory for ADC port\n");
+		else {
+			adc->port_data = a3d;
+			adc->open = a3d_adc_open;
+			adc->close = a3d_adc_close;
+			adc->cooked_read = a3d_adc_cooked_read;
+			adc->fuzz = 1;
+
+			gameport_set_name(adc, a3d_names[a3d->mode]);
+			gameport_set_phys(adc, "%s/gameport0", gameport->phys);
+			adc->dev.parent = &gameport->dev;
+
+			gameport_register_port(adc);
+		}
+	}
+
+	err = input_register_device(a3d->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	if (a3d->adc)
+		gameport_unregister_port(a3d->adc);
+ fail2:	gameport_close(gameport);
+ fail1:	gameport_set_drvdata(gameport, NULL);
+	input_free_device(input_dev);
+	kfree(a3d);
+	return err;
+}
+
+static void a3d_disconnect(struct gameport *gameport)
+{
+	struct a3d *a3d = gameport_get_drvdata(gameport);
+
+	input_unregister_device(a3d->dev);
+	if (a3d->adc)
+		gameport_unregister_port(a3d->adc);
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	kfree(a3d);
+}
+
+static struct gameport_driver a3d_drv = {
+	.driver		= {
+		.name	= "adc",
+		.owner	= THIS_MODULE,
+	},
+	.description	= DRIVER_DESC,
+	.connect	= a3d_connect,
+	.disconnect	= a3d_disconnect,
+};
+
+module_gameport_driver(a3d_drv);
diff --git a/drivers/input/joystick/adc-joystick.c b/drivers/input/joystick/adc-joystick.c
new file mode 100644
index 000000000..c0deff5d4
--- /dev/null
+++ b/drivers/input/joystick/adc-joystick.c
@@ -0,0 +1,306 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Input driver for joysticks connected over ADC.
+ * Copyright (c) 2019-2020 Artur Rojek <contact@artur-rojek.eu>
+ */
+#include <linux/ctype.h>
+#include <linux/input.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/consumer.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+
+#include <asm/unaligned.h>
+
+struct adc_joystick_axis {
+	u32 code;
+	s32 range[2];
+	s32 fuzz;
+	s32 flat;
+};
+
+struct adc_joystick {
+	struct input_dev *input;
+	struct iio_cb_buffer *buffer;
+	struct adc_joystick_axis *axes;
+	struct iio_channel *chans;
+	int num_chans;
+	bool polled;
+};
+
+static void adc_joystick_poll(struct input_dev *input)
+{
+	struct adc_joystick *joy = input_get_drvdata(input);
+	int i, val, ret;
+
+	for (i = 0; i < joy->num_chans; i++) {
+		ret = iio_read_channel_raw(&joy->chans[i], &val);
+		if (ret < 0)
+			return;
+		input_report_abs(input, joy->axes[i].code, val);
+	}
+	input_sync(input);
+}
+
+static int adc_joystick_handle(const void *data, void *private)
+{
+	struct adc_joystick *joy = private;
+	enum iio_endian endianness;
+	int bytes, msb, val, idx, i;
+	const u16 *data_u16;
+	bool sign;
+
+	bytes = joy->chans[0].channel->scan_type.storagebits >> 3;
+
+	for (i = 0; i < joy->num_chans; ++i) {
+		idx = joy->chans[i].channel->scan_index;
+		endianness = joy->chans[i].channel->scan_type.endianness;
+		msb = joy->chans[i].channel->scan_type.realbits - 1;
+		sign = tolower(joy->chans[i].channel->scan_type.sign) == 's';
+
+		switch (bytes) {
+		case 1:
+			val = ((const u8 *)data)[idx];
+			break;
+		case 2:
+			data_u16 = (const u16 *)data + idx;
+
+			/*
+			 * Data is aligned to the sample size by IIO core.
+			 * Call `get_unaligned_xe16` to hide type casting.
+			 */
+			if (endianness == IIO_BE)
+				val = get_unaligned_be16(data_u16);
+			else if (endianness == IIO_LE)
+				val = get_unaligned_le16(data_u16);
+			else /* IIO_CPU */
+				val = *data_u16;
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		val >>= joy->chans[i].channel->scan_type.shift;
+		if (sign)
+			val = sign_extend32(val, msb);
+		else
+			val &= GENMASK(msb, 0);
+		input_report_abs(joy->input, joy->axes[i].code, val);
+	}
+
+	input_sync(joy->input);
+
+	return 0;
+}
+
+static int adc_joystick_open(struct input_dev *dev)
+{
+	struct adc_joystick *joy = input_get_drvdata(dev);
+	struct device *devp = &dev->dev;
+	int ret;
+
+	ret = iio_channel_start_all_cb(joy->buffer);
+	if (ret)
+		dev_err(devp, "Unable to start callback buffer: %d\n", ret);
+
+	return ret;
+}
+
+static void adc_joystick_close(struct input_dev *dev)
+{
+	struct adc_joystick *joy = input_get_drvdata(dev);
+
+	iio_channel_stop_all_cb(joy->buffer);
+}
+
+static void adc_joystick_cleanup(void *data)
+{
+	iio_channel_release_all_cb(data);
+}
+
+static int adc_joystick_set_axes(struct device *dev, struct adc_joystick *joy)
+{
+	struct adc_joystick_axis *axes;
+	struct fwnode_handle *child;
+	int num_axes, error, i;
+
+	num_axes = device_get_child_node_count(dev);
+	if (!num_axes) {
+		dev_err(dev, "Unable to find child nodes\n");
+		return -EINVAL;
+	}
+
+	if (num_axes != joy->num_chans) {
+		dev_err(dev, "Got %d child nodes for %d channels\n",
+			num_axes, joy->num_chans);
+		return -EINVAL;
+	}
+
+	axes = devm_kmalloc_array(dev, num_axes, sizeof(*axes), GFP_KERNEL);
+	if (!axes)
+		return -ENOMEM;
+
+	device_for_each_child_node(dev, child) {
+		error = fwnode_property_read_u32(child, "reg", &i);
+		if (error) {
+			dev_err(dev, "reg invalid or missing\n");
+			goto err_fwnode_put;
+		}
+
+		if (i >= num_axes) {
+			error = -EINVAL;
+			dev_err(dev, "No matching axis for reg %d\n", i);
+			goto err_fwnode_put;
+		}
+
+		error = fwnode_property_read_u32(child, "linux,code",
+						 &axes[i].code);
+		if (error) {
+			dev_err(dev, "linux,code invalid or missing\n");
+			goto err_fwnode_put;
+		}
+
+		error = fwnode_property_read_u32_array(child, "abs-range",
+						       axes[i].range, 2);
+		if (error) {
+			dev_err(dev, "abs-range invalid or missing\n");
+			goto err_fwnode_put;
+		}
+
+		fwnode_property_read_u32(child, "abs-fuzz", &axes[i].fuzz);
+		fwnode_property_read_u32(child, "abs-flat", &axes[i].flat);
+
+		input_set_abs_params(joy->input, axes[i].code,
+				     axes[i].range[0], axes[i].range[1],
+				     axes[i].fuzz, axes[i].flat);
+		input_set_capability(joy->input, EV_ABS, axes[i].code);
+	}
+
+	joy->axes = axes;
+
+	return 0;
+
+err_fwnode_put:
+	fwnode_handle_put(child);
+	return error;
+}
+
+static int adc_joystick_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct adc_joystick *joy;
+	struct input_dev *input;
+	int error;
+	int bits;
+	int i;
+	unsigned int poll_interval;
+
+	joy = devm_kzalloc(dev, sizeof(*joy), GFP_KERNEL);
+	if (!joy)
+		return -ENOMEM;
+
+	joy->chans = devm_iio_channel_get_all(dev);
+	if (IS_ERR(joy->chans)) {
+		error = PTR_ERR(joy->chans);
+		if (error != -EPROBE_DEFER)
+			dev_err(dev, "Unable to get IIO channels");
+		return error;
+	}
+
+	error = device_property_read_u32(dev, "poll-interval", &poll_interval);
+	if (error) {
+		/* -EINVAL means the property is absent. */
+		if (error != -EINVAL)
+			return error;
+	} else if (poll_interval == 0) {
+		dev_err(dev, "Unable to get poll-interval\n");
+		return -EINVAL;
+	} else {
+		joy->polled = true;
+	}
+
+	/*
+	 * Count how many channels we got. NULL terminated.
+	 * Do not check the storage size if using polling.
+	 */
+	for (i = 0; joy->chans[i].indio_dev; i++) {
+		if (joy->polled)
+			continue;
+		bits = joy->chans[i].channel->scan_type.storagebits;
+		if (!bits || bits > 16) {
+			dev_err(dev, "Unsupported channel storage size\n");
+			return -EINVAL;
+		}
+		if (bits != joy->chans[0].channel->scan_type.storagebits) {
+			dev_err(dev, "Channels must have equal storage size\n");
+			return -EINVAL;
+		}
+	}
+	joy->num_chans = i;
+
+	input = devm_input_allocate_device(dev);
+	if (!input) {
+		dev_err(dev, "Unable to allocate input device\n");
+		return -ENOMEM;
+	}
+
+	joy->input = input;
+	input->name = pdev->name;
+	input->id.bustype = BUS_HOST;
+
+	error = adc_joystick_set_axes(dev, joy);
+	if (error)
+		return error;
+
+	if (joy->polled) {
+		input_setup_polling(input, adc_joystick_poll);
+		input_set_poll_interval(input, poll_interval);
+	} else {
+		input->open = adc_joystick_open;
+		input->close = adc_joystick_close;
+
+		joy->buffer = iio_channel_get_all_cb(dev, adc_joystick_handle,
+						     joy);
+		if (IS_ERR(joy->buffer)) {
+			dev_err(dev, "Unable to allocate callback buffer\n");
+			return PTR_ERR(joy->buffer);
+		}
+
+		error = devm_add_action_or_reset(dev, adc_joystick_cleanup,
+						 joy->buffer);
+		if (error)  {
+			dev_err(dev, "Unable to add action\n");
+			return error;
+		}
+	}
+
+	input_set_drvdata(input, joy);
+
+	error = input_register_device(input);
+	if (error) {
+		dev_err(dev, "Unable to register input device\n");
+		return error;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id adc_joystick_of_match[] = {
+	{ .compatible = "adc-joystick", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, adc_joystick_of_match);
+
+static struct platform_driver adc_joystick_driver = {
+	.driver = {
+		.name = "adc-joystick",
+		.of_match_table = adc_joystick_of_match,
+	},
+	.probe = adc_joystick_probe,
+};
+module_platform_driver(adc_joystick_driver);
+
+MODULE_DESCRIPTION("Input driver for joysticks connected over ADC");
+MODULE_AUTHOR("Artur Rojek <contact@artur-rojek.eu>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/joystick/adi.c b/drivers/input/joystick/adi.c
new file mode 100644
index 000000000..f1a720be4
--- /dev/null
+++ b/drivers/input/joystick/adi.c
@@ -0,0 +1,548 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1998-2005 Vojtech Pavlik
+ */
+
+/*
+ * Logitech ADI joystick family driver for Linux
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/gameport.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"Logitech ADI joystick family driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Times, array sizes, flags, ids.
+ */
+
+#define ADI_MAX_START		200	/* Trigger to packet timeout [200us] */
+#define ADI_MAX_STROBE		40	/* Single bit timeout [40us] */
+#define ADI_INIT_DELAY		10	/* Delay after init packet [10ms] */
+#define ADI_DATA_DELAY		4	/* Delay after data packet [4ms] */
+
+#define ADI_MAX_LENGTH		256
+#define ADI_MIN_LENGTH		8
+#define ADI_MIN_LEN_LENGTH	10
+#define ADI_MIN_ID_LENGTH	66
+#define ADI_MAX_NAME_LENGTH	64
+#define ADI_MAX_CNAME_LENGTH	16
+#define ADI_MAX_PHYS_LENGTH	64
+
+#define ADI_FLAG_HAT		0x04
+#define ADI_FLAG_10BIT		0x08
+
+#define ADI_ID_TPD		0x01
+#define ADI_ID_WGP		0x06
+#define ADI_ID_WGPE		0x08
+#define ADI_ID_MAX		0x0a
+
+/*
+ * Names, buttons, axes ...
+ */
+
+static char *adi_names[] = {	"WingMan Extreme Digital", "ThunderPad Digital", "SideCar", "CyberMan 2",
+				"WingMan Interceptor", "WingMan Formula", "WingMan GamePad",
+				"WingMan Extreme Digital 3D", "WingMan GamePad Extreme",
+				"WingMan GamePad USB", "Unknown Device %#x" };
+
+static char adi_wmgpe_abs[] =	{ ABS_X, ABS_Y, ABS_HAT0X, ABS_HAT0Y };
+static char adi_wmi_abs[] =	{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, ABS_HAT2X, ABS_HAT2Y };
+static char adi_wmed3d_abs[] =	{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RZ, ABS_HAT0X, ABS_HAT0Y };
+static char adi_cm2_abs[] =	{ ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
+static char adi_wmf_abs[] =	{ ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, ABS_HAT2X, ABS_HAT2Y };
+
+static short adi_wmgpe_key[] =	{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z,  BTN_TL, BTN_TR, BTN_START, BTN_MODE, BTN_SELECT };
+static short adi_wmi_key[] =	{ BTN_TRIGGER,  BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_EXTRA };
+static short adi_wmed3d_key[] =	{ BTN_TRIGGER, BTN_THUMB, BTN_THUMB2, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2 };
+static short adi_cm2_key[] =	{ BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8 };
+
+static char* adi_abs[] = { adi_wmi_abs, adi_wmgpe_abs, adi_wmf_abs, adi_cm2_abs, adi_wmi_abs, adi_wmf_abs,
+			   adi_wmgpe_abs, adi_wmed3d_abs, adi_wmgpe_abs, adi_wmgpe_abs, adi_wmi_abs };
+
+static short* adi_key[] = { adi_wmi_key, adi_wmgpe_key, adi_cm2_key, adi_cm2_key, adi_wmi_key, adi_cm2_key,
+			    adi_wmgpe_key, adi_wmed3d_key, adi_wmgpe_key, adi_wmgpe_key, adi_wmi_key };
+
+/*
+ * Hat to axis conversion arrays.
+ */
+
+static struct {
+	int x;
+	int y;
+} adi_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+/*
+ * Per-port information.
+ */
+
+struct adi {
+	struct input_dev *dev;
+	int length;
+	int ret;
+	int idx;
+	unsigned char id;
+	char buttons;
+	char axes10;
+	char axes8;
+	signed char pad;
+	char hats;
+	char *abs;
+	short *key;
+	char name[ADI_MAX_NAME_LENGTH];
+	char cname[ADI_MAX_CNAME_LENGTH];
+	char phys[ADI_MAX_PHYS_LENGTH];
+	unsigned char data[ADI_MAX_LENGTH];
+};
+
+struct adi_port {
+	struct gameport *gameport;
+	struct adi adi[2];
+	int bad;
+	int reads;
+};
+
+/*
+ * adi_read_packet() reads a Logitech ADI packet.
+ */
+
+static void adi_read_packet(struct adi_port *port)
+{
+	struct adi *adi = port->adi;
+	struct gameport *gameport = port->gameport;
+	unsigned char u, v, w, x;
+	int t[2], s[2], i;
+	unsigned long flags;
+
+	for (i = 0; i < 2; i++) {
+		adi[i].ret = -1;
+		t[i] = gameport_time(gameport, ADI_MAX_START);
+		s[i] = 0;
+	}
+
+	local_irq_save(flags);
+
+	gameport_trigger(gameport);
+	v = gameport_read(gameport);
+
+	do {
+		u = v;
+		w = u ^ (v = x = gameport_read(gameport));
+		for (i = 0; i < 2; i++, w >>= 2, x >>= 2) {
+			t[i]--;
+			if ((w & 0x30) && s[i]) {
+				if ((w & 0x30) < 0x30 && adi[i].ret < ADI_MAX_LENGTH && t[i] > 0) {
+					adi[i].data[++adi[i].ret] = w;
+					t[i] = gameport_time(gameport, ADI_MAX_STROBE);
+				} else t[i] = 0;
+			} else if (!(x & 0x30)) s[i] = 1;
+		}
+	} while (t[0] > 0 || t[1] > 0);
+
+	local_irq_restore(flags);
+
+	return;
+}
+
+/*
+ * adi_move_bits() detects a possible 2-stream mode, and moves
+ * the bits accordingly.
+ */
+
+static void adi_move_bits(struct adi_port *port, int length)
+{
+	int i;
+	struct adi *adi = port->adi;
+
+	adi[0].idx = adi[1].idx = 0;
+
+	if (adi[0].ret <= 0 || adi[1].ret <= 0) return;
+	if (adi[0].data[0] & 0x20 || ~adi[1].data[0] & 0x20) return;
+
+	for (i = 1; i <= adi[1].ret; i++)
+		adi[0].data[((length - 1) >> 1) + i + 1] = adi[1].data[i];
+
+	adi[0].ret += adi[1].ret;
+	adi[1].ret = -1;
+}
+
+/*
+ * adi_get_bits() gathers bits from the data packet.
+ */
+
+static inline int adi_get_bits(struct adi *adi, int count)
+{
+	int bits = 0;
+	int i;
+	if ((adi->idx += count) > adi->ret) return 0;
+	for (i = 0; i < count; i++)
+		bits |= ((adi->data[adi->idx - i] >> 5) & 1) << i;
+	return bits;
+}
+
+/*
+ * adi_decode() decodes Logitech joystick data into input events.
+ */
+
+static int adi_decode(struct adi *adi)
+{
+	struct input_dev *dev = adi->dev;
+	char *abs = adi->abs;
+	short *key = adi->key;
+	int i, t;
+
+	if (adi->ret < adi->length || adi->id != (adi_get_bits(adi, 4) | (adi_get_bits(adi, 4) << 4)))
+		return -1;
+
+	for (i = 0; i < adi->axes10; i++)
+		input_report_abs(dev, *abs++, adi_get_bits(adi, 10));
+
+	for (i = 0; i < adi->axes8; i++)
+		input_report_abs(dev, *abs++, adi_get_bits(adi, 8));
+
+	for (i = 0; i < adi->buttons && i < 63; i++) {
+		if (i == adi->pad) {
+			t = adi_get_bits(adi, 4);
+			input_report_abs(dev, *abs++, ((t >> 2) & 1) - ( t       & 1));
+			input_report_abs(dev, *abs++, ((t >> 1) & 1) - ((t >> 3) & 1));
+		}
+		input_report_key(dev, *key++, adi_get_bits(adi, 1));
+	}
+
+	for (i = 0; i < adi->hats; i++) {
+		if ((t = adi_get_bits(adi, 4)) > 8) t = 0;
+		input_report_abs(dev, *abs++, adi_hat_to_axis[t].x);
+		input_report_abs(dev, *abs++, adi_hat_to_axis[t].y);
+	}
+
+	for (i = 63; i < adi->buttons; i++)
+		input_report_key(dev, *key++, adi_get_bits(adi, 1));
+
+	input_sync(dev);
+
+	return 0;
+}
+
+/*
+ * adi_read() reads the data packet and decodes it.
+ */
+
+static int adi_read(struct adi_port *port)
+{
+	int i;
+	int result = 0;
+
+	adi_read_packet(port);
+	adi_move_bits(port, port->adi[0].length);
+
+	for (i = 0; i < 2; i++)
+		if (port->adi[i].length)
+			 result |= adi_decode(port->adi + i);
+
+	return result;
+}
+
+/*
+ * adi_poll() repeatedly polls the Logitech joysticks.
+ */
+
+static void adi_poll(struct gameport *gameport)
+{
+	struct adi_port *port = gameport_get_drvdata(gameport);
+
+	port->bad -= adi_read(port);
+	port->reads++;
+}
+
+/*
+ * adi_open() is a callback from the input open routine.
+ */
+
+static int adi_open(struct input_dev *dev)
+{
+	struct adi_port *port = input_get_drvdata(dev);
+
+	gameport_start_polling(port->gameport);
+	return 0;
+}
+
+/*
+ * adi_close() is a callback from the input close routine.
+ */
+
+static void adi_close(struct input_dev *dev)
+{
+	struct adi_port *port = input_get_drvdata(dev);
+
+	gameport_stop_polling(port->gameport);
+}
+
+/*
+ * adi_init_digital() sends a trigger & delay sequence
+ * to reset and initialize a Logitech joystick into digital mode.
+ */
+
+static void adi_init_digital(struct gameport *gameport)
+{
+	static const int seq[] = { 4, -2, -3, 10, -6, -11, -7, -9, 11, 0 };
+	int i;
+
+	for (i = 0; seq[i]; i++) {
+		gameport_trigger(gameport);
+		if (seq[i] > 0)
+			msleep(seq[i]);
+		if (seq[i] < 0) {
+			mdelay(-seq[i]);
+			udelay(-seq[i]*14);	/* It looks like mdelay() is off by approx 1.4% */
+		}
+	}
+}
+
+static void adi_id_decode(struct adi *adi, struct adi_port *port)
+{
+	int i, t;
+
+	if (adi->ret < ADI_MIN_ID_LENGTH) /* Minimum ID packet length */
+		return;
+
+	if (adi->ret < (t = adi_get_bits(adi, 10))) {
+		printk(KERN_WARNING "adi: Short ID packet: reported: %d != read: %d\n", t, adi->ret);
+		return;
+	}
+
+	adi->id = adi_get_bits(adi, 4) | (adi_get_bits(adi, 4) << 4);
+
+	if ((t = adi_get_bits(adi, 4)) & ADI_FLAG_HAT) adi->hats++;
+
+	adi->length = adi_get_bits(adi, 10);
+
+	if (adi->length >= ADI_MAX_LENGTH || adi->length < ADI_MIN_LENGTH) {
+		printk(KERN_WARNING "adi: Bad data packet length (%d).\n", adi->length);
+		adi->length = 0;
+		return;
+	}
+
+	adi->axes8 = adi_get_bits(adi, 4);
+	adi->buttons = adi_get_bits(adi, 6);
+
+	if (adi_get_bits(adi, 6) != 8 && adi->hats) {
+		printk(KERN_WARNING "adi: Other than 8-dir POVs not supported yet.\n");
+		adi->length = 0;
+		return;
+	}
+
+	adi->buttons += adi_get_bits(adi, 6);
+	adi->hats += adi_get_bits(adi, 4);
+
+	i = adi_get_bits(adi, 4);
+
+	if (t & ADI_FLAG_10BIT) {
+		adi->axes10 = adi->axes8 - i;
+		adi->axes8 = i;
+	}
+
+	t = adi_get_bits(adi, 4);
+
+	for (i = 0; i < t; i++)
+		adi->cname[i] = adi_get_bits(adi, 8);
+	adi->cname[i] = 0;
+
+	t = 8 + adi->buttons + adi->axes10 * 10 + adi->axes8 * 8 + adi->hats * 4;
+	if (adi->length != t && adi->length != t + (t & 1)) {
+		printk(KERN_WARNING "adi: Expected length %d != data length %d\n", t, adi->length);
+		adi->length = 0;
+		return;
+	}
+
+	switch (adi->id) {
+		case ADI_ID_TPD:
+			adi->pad = 4;
+			adi->buttons -= 4;
+			break;
+		case ADI_ID_WGP:
+			adi->pad = 0;
+			adi->buttons -= 4;
+			break;
+		default:
+			adi->pad = -1;
+			break;
+	}
+}
+
+static int adi_init_input(struct adi *adi, struct adi_port *port, int half)
+{
+	struct input_dev *input_dev;
+	char buf[ADI_MAX_NAME_LENGTH];
+	int i, t;
+
+	adi->dev = input_dev = input_allocate_device();
+	if (!input_dev)
+		return -ENOMEM;
+
+	t = adi->id < ADI_ID_MAX ? adi->id : ADI_ID_MAX;
+
+	snprintf(buf, ADI_MAX_PHYS_LENGTH, adi_names[t], adi->id);
+	snprintf(adi->name, ADI_MAX_NAME_LENGTH, "Logitech %s [%s]", buf, adi->cname);
+	snprintf(adi->phys, ADI_MAX_PHYS_LENGTH, "%s/input%d", port->gameport->phys, half);
+
+	adi->abs = adi_abs[t];
+	adi->key = adi_key[t];
+
+	input_dev->name = adi->name;
+	input_dev->phys = adi->phys;
+	input_dev->id.bustype = BUS_GAMEPORT;
+	input_dev->id.vendor = GAMEPORT_ID_VENDOR_LOGITECH;
+	input_dev->id.product = adi->id;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &port->gameport->dev;
+
+	input_set_drvdata(input_dev, port);
+
+	input_dev->open = adi_open;
+	input_dev->close = adi_close;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	for (i = 0; i < adi->axes10 + adi->axes8 + (adi->hats + (adi->pad != -1)) * 2; i++)
+		set_bit(adi->abs[i], input_dev->absbit);
+
+	for (i = 0; i < adi->buttons; i++)
+		set_bit(adi->key[i], input_dev->keybit);
+
+	return 0;
+}
+
+static void adi_init_center(struct adi *adi)
+{
+	int i, t, x;
+
+	if (!adi->length)
+		return;
+
+	for (i = 0; i < adi->axes10 + adi->axes8 + (adi->hats + (adi->pad != -1)) * 2; i++) {
+
+		t = adi->abs[i];
+		x = input_abs_get_val(adi->dev, t);
+
+		if (t == ABS_THROTTLE || t == ABS_RUDDER || adi->id == ADI_ID_WGPE)
+			x = i < adi->axes10 ? 512 : 128;
+
+		if (i < adi->axes10)
+			input_set_abs_params(adi->dev, t, 64, x * 2 - 64, 2, 16);
+		else if (i < adi->axes10 + adi->axes8)
+			input_set_abs_params(adi->dev, t, 48, x * 2 - 48, 1, 16);
+		else
+			input_set_abs_params(adi->dev, t, -1, 1, 0, 0);
+	}
+}
+
+/*
+ * adi_connect() probes for Logitech ADI joysticks.
+ */
+
+static int adi_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct adi_port *port;
+	int i;
+	int err;
+
+	port = kzalloc(sizeof(struct adi_port), GFP_KERNEL);
+	if (!port)
+		return -ENOMEM;
+
+	port->gameport = gameport;
+
+	gameport_set_drvdata(gameport, port);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	adi_init_digital(gameport);
+	adi_read_packet(port);
+
+	if (port->adi[0].ret >= ADI_MIN_LEN_LENGTH)
+		adi_move_bits(port, adi_get_bits(port->adi, 10));
+
+	for (i = 0; i < 2; i++) {
+		adi_id_decode(port->adi + i, port);
+
+		if (!port->adi[i].length)
+			continue;
+
+		err = adi_init_input(port->adi + i, port, i);
+		if (err)
+			goto fail2;
+	}
+
+	if (!port->adi[0].length && !port->adi[1].length) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	gameport_set_poll_handler(gameport, adi_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	msleep(ADI_INIT_DELAY);
+	if (adi_read(port)) {
+		msleep(ADI_DATA_DELAY);
+		adi_read(port);
+	}
+
+	for (i = 0; i < 2; i++)
+		if (port->adi[i].length > 0) {
+			adi_init_center(port->adi + i);
+			err = input_register_device(port->adi[i].dev);
+			if (err)
+				goto fail3;
+		}
+
+	return 0;
+
+ fail3: while (--i >= 0) {
+		if (port->adi[i].length > 0) {
+			input_unregister_device(port->adi[i].dev);
+			port->adi[i].dev = NULL;
+		}
+	}
+ fail2:	for (i = 0; i < 2; i++)
+		input_free_device(port->adi[i].dev);
+	gameport_close(gameport);
+ fail1:	gameport_set_drvdata(gameport, NULL);
+	kfree(port);
+	return err;
+}
+
+static void adi_disconnect(struct gameport *gameport)
+{
+	int i;
+	struct adi_port *port = gameport_get_drvdata(gameport);
+
+	for (i = 0; i < 2; i++)
+		if (port->adi[i].length > 0)
+			input_unregister_device(port->adi[i].dev);
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	kfree(port);
+}
+
+static struct gameport_driver adi_drv = {
+	.driver		= {
+		.name	= "adi",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= adi_connect,
+	.disconnect	= adi_disconnect,
+};
+
+module_gameport_driver(adi_drv);
diff --git a/drivers/input/joystick/amijoy.c b/drivers/input/joystick/amijoy.c
new file mode 100644
index 000000000..3752dc2a2
--- /dev/null
+++ b/drivers/input/joystick/amijoy.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * Driver for Amiga joysticks for Linux/m68k
+ */
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+
+#include <asm/amigahw.h>
+#include <asm/amigaints.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Driver for Amiga joysticks");
+MODULE_LICENSE("GPL");
+
+static int amijoy[2] = { 0, 1 };
+module_param_array_named(map, amijoy, uint, NULL, 0);
+MODULE_PARM_DESC(map, "Map of attached joysticks in form of <a>,<b> (default is 0,1)");
+
+static int amijoy_used;
+static DEFINE_MUTEX(amijoy_mutex);
+static struct input_dev *amijoy_dev[2];
+static char *amijoy_phys[2] = { "amijoy/input0", "amijoy/input1" };
+
+static irqreturn_t amijoy_interrupt(int irq, void *dummy)
+{
+	int i, data = 0, button = 0;
+
+	for (i = 0; i < 2; i++)
+		if (amijoy[i]) {
+
+			switch (i) {
+				case 0: data = ~amiga_custom.joy0dat; button = (~ciaa.pra >> 6) & 1; break;
+				case 1: data = ~amiga_custom.joy1dat; button = (~ciaa.pra >> 7) & 1; break;
+			}
+
+			input_report_key(amijoy_dev[i], BTN_TRIGGER, button);
+
+			input_report_abs(amijoy_dev[i], ABS_X, ((data >> 1) & 1) - ((data >> 9) & 1));
+			data = ~(data ^ (data << 1));
+			input_report_abs(amijoy_dev[i], ABS_Y, ((data >> 1) & 1) - ((data >> 9) & 1));
+
+			input_sync(amijoy_dev[i]);
+		}
+	return IRQ_HANDLED;
+}
+
+static int amijoy_open(struct input_dev *dev)
+{
+	int err;
+
+	err = mutex_lock_interruptible(&amijoy_mutex);
+	if (err)
+		return err;
+
+	if (!amijoy_used && request_irq(IRQ_AMIGA_VERTB, amijoy_interrupt, 0, "amijoy", amijoy_interrupt)) {
+		printk(KERN_ERR "amijoy.c: Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
+		err = -EBUSY;
+		goto out;
+	}
+
+	amijoy_used++;
+out:
+	mutex_unlock(&amijoy_mutex);
+	return err;
+}
+
+static void amijoy_close(struct input_dev *dev)
+{
+	mutex_lock(&amijoy_mutex);
+	if (!--amijoy_used)
+		free_irq(IRQ_AMIGA_VERTB, amijoy_interrupt);
+	mutex_unlock(&amijoy_mutex);
+}
+
+static int __init amijoy_init(void)
+{
+	int i, j;
+	int err;
+
+	if (!MACH_IS_AMIGA)
+		return -ENODEV;
+
+	for (i = 0; i < 2; i++) {
+		if (!amijoy[i])
+			continue;
+
+		amijoy_dev[i] = input_allocate_device();
+		if (!amijoy_dev[i]) {
+			err = -ENOMEM;
+			goto fail;
+		}
+
+		if (!request_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2, "amijoy [Denise]")) {
+			input_free_device(amijoy_dev[i]);
+			err = -EBUSY;
+			goto fail;
+		}
+
+		amijoy_dev[i]->name = "Amiga joystick";
+		amijoy_dev[i]->phys = amijoy_phys[i];
+		amijoy_dev[i]->id.bustype = BUS_AMIGA;
+		amijoy_dev[i]->id.vendor = 0x0001;
+		amijoy_dev[i]->id.product = 0x0003;
+		amijoy_dev[i]->id.version = 0x0100;
+
+		amijoy_dev[i]->open = amijoy_open;
+		amijoy_dev[i]->close = amijoy_close;
+
+		amijoy_dev[i]->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+		amijoy_dev[i]->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y);
+		amijoy_dev[i]->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
+			BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+		for (j = 0; j < 2; j++) {
+			input_set_abs_params(amijoy_dev[i], ABS_X + j,
+					     -1, 1, 0, 0);
+		}
+
+		err = input_register_device(amijoy_dev[i]);
+		if (err) {
+			input_free_device(amijoy_dev[i]);
+			goto fail;
+		}
+	}
+	return 0;
+
+ fail:	while (--i >= 0)
+		if (amijoy[i]) {
+			input_unregister_device(amijoy_dev[i]);
+			release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
+		}
+	return err;
+}
+
+static void __exit amijoy_exit(void)
+{
+	int i;
+
+	for (i = 0; i < 2; i++)
+		if (amijoy[i]) {
+			input_unregister_device(amijoy_dev[i]);
+			release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
+		}
+}
+
+module_init(amijoy_init);
+module_exit(amijoy_exit);
diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c
new file mode 100644
index 000000000..0c9e172a9
--- /dev/null
+++ b/drivers/input/joystick/analog.c
@@ -0,0 +1,704 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1996-2001 Vojtech Pavlik
+ */
+
+/*
+ * Analog joystick and gamepad driver for Linux
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/gameport.h>
+#include <linux/jiffies.h>
+#include <linux/seq_buf.h>
+#include <linux/timex.h>
+#include <linux/timekeeping.h>
+
+#define DRIVER_DESC	"Analog joystick and gamepad driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Option parsing.
+ */
+
+#define ANALOG_PORTS		16
+
+static char *js[ANALOG_PORTS];
+static unsigned int js_nargs;
+static int analog_options[ANALOG_PORTS];
+module_param_array_named(map, js, charp, &js_nargs, 0);
+MODULE_PARM_DESC(map, "Describes analog joysticks type/capabilities");
+
+/*
+ * Times, feature definitions.
+ */
+
+#define ANALOG_RUDDER		0x00004
+#define ANALOG_THROTTLE		0x00008
+#define ANALOG_AXES_STD		0x0000f
+#define ANALOG_BTNS_STD		0x000f0
+
+#define ANALOG_BTNS_CHF		0x00100
+#define ANALOG_HAT1_CHF		0x00200
+#define ANALOG_HAT2_CHF		0x00400
+#define ANALOG_HAT_FCS		0x00800
+#define ANALOG_HATS_ALL		0x00e00
+#define ANALOG_BTN_TL		0x01000
+#define ANALOG_BTN_TR		0x02000
+#define ANALOG_BTN_TL2		0x04000
+#define ANALOG_BTN_TR2		0x08000
+#define ANALOG_BTNS_TLR		0x03000
+#define ANALOG_BTNS_TLR2	0x0c000
+#define ANALOG_BTNS_GAMEPAD	0x0f000
+
+#define ANALOG_HBTN_CHF		0x10000
+#define ANALOG_ANY_CHF		0x10700
+#define ANALOG_SAITEK		0x20000
+#define ANALOG_EXTENSIONS	0x7ff00
+#define ANALOG_GAMEPAD		0x80000
+
+#define ANALOG_MAX_TIME		3	/* 3 ms */
+#define ANALOG_LOOP_TIME	2000	/* 2 * loop */
+#define ANALOG_SAITEK_DELAY	200	/* 200 us */
+#define ANALOG_SAITEK_TIME	2000	/* 2000 us */
+#define ANALOG_AXIS_TIME	2	/* 2 * refresh */
+#define ANALOG_INIT_RETRIES	8	/* 8 times */
+#define ANALOG_FUZZ_BITS	2	/* 2 bit more */
+#define ANALOG_FUZZ_MAGIC	36	/* 36 u*ms/loop */
+
+#define ANALOG_MAX_NAME_LENGTH  128
+#define ANALOG_MAX_PHYS_LENGTH	32
+
+static short analog_axes[] = { ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE };
+static short analog_hats[] = { ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, ABS_HAT2X, ABS_HAT2Y };
+static short analog_pads[] = { BTN_Y, BTN_Z, BTN_TL, BTN_TR };
+static short analog_exts[] = { ANALOG_HAT1_CHF, ANALOG_HAT2_CHF, ANALOG_HAT_FCS };
+static short analog_pad_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_TL2, BTN_TR2, BTN_SELECT, BTN_START, BTN_MODE, BTN_BASE };
+static short analog_joy_btn[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2,
+				  BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_BASE6 };
+
+static unsigned char analog_chf[] = { 0xf, 0x0, 0x1, 0x9, 0x2, 0x4, 0xc, 0x8, 0x3, 0x5, 0xb, 0x7, 0xd, 0xe, 0xa, 0x6 };
+
+struct analog {
+	struct input_dev *dev;
+	int mask;
+	short *buttons;
+	char name[ANALOG_MAX_NAME_LENGTH];
+	char phys[ANALOG_MAX_PHYS_LENGTH];
+};
+
+struct analog_port {
+	struct gameport *gameport;
+	struct analog analog[2];
+	unsigned char mask;
+	char saitek;
+	char cooked;
+	int bads;
+	int reads;
+	int loop;
+	int fuzz;
+	int axes[4];
+	int buttons;
+	int initial[4];
+	int axtime;
+};
+
+/*
+ * analog_decode() decodes analog joystick data and reports input events.
+ */
+
+static void analog_decode(struct analog *analog, int *axes, int *initial, int buttons)
+{
+	struct input_dev *dev = analog->dev;
+	int i, j;
+
+	if (analog->mask & ANALOG_HAT_FCS)
+		for (i = 0; i < 4; i++)
+			if (axes[3] < ((initial[3] * ((i << 1) + 1)) >> 3)) {
+				buttons |= 1 << (i + 14);
+				break;
+			}
+
+	for (i = j = 0; i < 6; i++)
+		if (analog->mask & (0x10 << i))
+			input_report_key(dev, analog->buttons[j++], (buttons >> i) & 1);
+
+	if (analog->mask & ANALOG_HBTN_CHF)
+		for (i = 0; i < 4; i++)
+			input_report_key(dev, analog->buttons[j++], (buttons >> (i + 10)) & 1);
+
+	if (analog->mask & ANALOG_BTN_TL)
+		input_report_key(dev, analog_pads[0], axes[2] < (initial[2] >> 1));
+	if (analog->mask & ANALOG_BTN_TR)
+		input_report_key(dev, analog_pads[1], axes[3] < (initial[3] >> 1));
+	if (analog->mask & ANALOG_BTN_TL2)
+		input_report_key(dev, analog_pads[2], axes[2] > (initial[2] + (initial[2] >> 1)));
+	if (analog->mask & ANALOG_BTN_TR2)
+		input_report_key(dev, analog_pads[3], axes[3] > (initial[3] + (initial[3] >> 1)));
+
+	for (i = j = 0; i < 4; i++)
+		if (analog->mask & (1 << i))
+			input_report_abs(dev, analog_axes[j++], axes[i]);
+
+	for (i = j = 0; i < 3; i++)
+		if (analog->mask & analog_exts[i]) {
+			input_report_abs(dev, analog_hats[j++],
+				((buttons >> ((i << 2) + 7)) & 1) - ((buttons >> ((i << 2) + 9)) & 1));
+			input_report_abs(dev, analog_hats[j++],
+				((buttons >> ((i << 2) + 8)) & 1) - ((buttons >> ((i << 2) + 6)) & 1));
+		}
+
+	input_sync(dev);
+}
+
+/*
+ * analog_cooked_read() reads analog joystick data.
+ */
+
+static int analog_cooked_read(struct analog_port *port)
+{
+	struct gameport *gameport = port->gameport;
+	ktime_t time[4], start, loop, now;
+	unsigned int loopout, timeout;
+	unsigned char data[4], this, last;
+	unsigned long flags;
+	int i, j;
+
+	loopout = (ANALOG_LOOP_TIME * port->loop) / 1000;
+	timeout = ANALOG_MAX_TIME * NSEC_PER_MSEC;
+
+	local_irq_save(flags);
+	gameport_trigger(gameport);
+	now = ktime_get();
+	local_irq_restore(flags);
+
+	start = now;
+	this = port->mask;
+	i = 0;
+
+	do {
+		loop = now;
+		last = this;
+
+		local_irq_disable();
+		this = gameport_read(gameport) & port->mask;
+		now = ktime_get();
+		local_irq_restore(flags);
+
+		if ((last ^ this) && (ktime_sub(now, loop) < loopout)) {
+			data[i] = last ^ this;
+			time[i] = now;
+			i++;
+		}
+
+	} while (this && (i < 4) && (ktime_sub(now, start) < timeout));
+
+	this <<= 4;
+
+	for (--i; i >= 0; i--) {
+		this |= data[i];
+		for (j = 0; j < 4; j++)
+			if (data[i] & (1 << j))
+				port->axes[j] = ((u32)ktime_sub(time[i], start) << ANALOG_FUZZ_BITS) / port->loop;
+	}
+
+	return -(this != port->mask);
+}
+
+static int analog_button_read(struct analog_port *port, char saitek, char chf)
+{
+	unsigned char u;
+	int t = 1, i = 0;
+	int strobe = gameport_time(port->gameport, ANALOG_SAITEK_TIME);
+
+	u = gameport_read(port->gameport);
+
+	if (!chf) {
+		port->buttons = (~u >> 4) & 0xf;
+		return 0;
+	}
+
+	port->buttons = 0;
+
+	while ((~u & 0xf0) && (i < 16) && t) {
+		port->buttons |= 1 << analog_chf[(~u >> 4) & 0xf];
+		if (!saitek) return 0;
+		udelay(ANALOG_SAITEK_DELAY);
+		t = strobe;
+		gameport_trigger(port->gameport);
+		while (((u = gameport_read(port->gameport)) & port->mask) && t) t--;
+		i++;
+	}
+
+	return -(!t || (i == 16));
+}
+
+/*
+ * analog_poll() repeatedly polls the Analog joysticks.
+ */
+
+static void analog_poll(struct gameport *gameport)
+{
+	struct analog_port *port = gameport_get_drvdata(gameport);
+	int i;
+
+	char saitek = !!(port->analog[0].mask & ANALOG_SAITEK);
+	char chf = !!(port->analog[0].mask & ANALOG_ANY_CHF);
+
+	if (port->cooked) {
+		port->bads -= gameport_cooked_read(port->gameport, port->axes, &port->buttons);
+		if (chf)
+			port->buttons = port->buttons ? (1 << analog_chf[port->buttons]) : 0;
+		port->reads++;
+	} else {
+		if (!port->axtime--) {
+			port->bads -= analog_cooked_read(port);
+			port->bads -= analog_button_read(port, saitek, chf);
+			port->reads++;
+			port->axtime = ANALOG_AXIS_TIME - 1;
+		} else {
+			if (!saitek)
+				analog_button_read(port, saitek, chf);
+		}
+	}
+
+	for (i = 0; i < 2; i++)
+		if (port->analog[i].mask)
+			analog_decode(port->analog + i, port->axes, port->initial, port->buttons);
+}
+
+/*
+ * analog_open() is a callback from the input open routine.
+ */
+
+static int analog_open(struct input_dev *dev)
+{
+	struct analog_port *port = input_get_drvdata(dev);
+
+	gameport_start_polling(port->gameport);
+	return 0;
+}
+
+/*
+ * analog_close() is a callback from the input close routine.
+ */
+
+static void analog_close(struct input_dev *dev)
+{
+	struct analog_port *port = input_get_drvdata(dev);
+
+	gameport_stop_polling(port->gameport);
+}
+
+/*
+ * analog_calibrate_timer() calibrates the timer and computes loop
+ * and timeout values for a joystick port.
+ */
+
+static void analog_calibrate_timer(struct analog_port *port)
+{
+	struct gameport *gameport = port->gameport;
+	unsigned int i, t, tx;
+	ktime_t t1, t2, t3;
+	unsigned long flags;
+
+	tx = ~0;
+
+	for (i = 0; i < 50; i++) {
+		local_irq_save(flags);
+		t1 = ktime_get();
+		for (t = 0; t < 50; t++) {
+			gameport_read(gameport);
+			t2 = ktime_get();
+		}
+		t3 = ktime_get();
+		local_irq_restore(flags);
+		udelay(i);
+		t = ktime_sub(t2, t1) - ktime_sub(t3, t2);
+		if (t < tx) tx = t;
+	}
+
+        port->loop = tx / 50;
+}
+
+/*
+ * analog_name() constructs a name for an analog joystick.
+ */
+
+static void analog_name(struct analog *analog)
+{
+	struct seq_buf s;
+
+	seq_buf_init(&s, analog->name, sizeof(analog->name));
+	seq_buf_printf(&s, "Analog %d-axis %d-button",
+		 hweight8(analog->mask & ANALOG_AXES_STD),
+		 hweight8(analog->mask & ANALOG_BTNS_STD) + !!(analog->mask & ANALOG_BTNS_CHF) * 2 +
+		 hweight16(analog->mask & ANALOG_BTNS_GAMEPAD) + !!(analog->mask & ANALOG_HBTN_CHF) * 4);
+
+	if (analog->mask & ANALOG_HATS_ALL)
+		seq_buf_printf(&s, " %d-hat",
+			       hweight16(analog->mask & ANALOG_HATS_ALL));
+
+	if (analog->mask & ANALOG_HAT_FCS)
+		seq_buf_printf(&s, " FCS");
+	if (analog->mask & ANALOG_ANY_CHF)
+		seq_buf_printf(&s, (analog->mask & ANALOG_SAITEK) ? " Saitek" : " CHF");
+
+	seq_buf_printf(&s, (analog->mask & ANALOG_GAMEPAD) ? " gamepad" : " joystick");
+}
+
+/*
+ * analog_init_device()
+ */
+
+static int analog_init_device(struct analog_port *port, struct analog *analog, int index)
+{
+	struct input_dev *input_dev;
+	int i, j, t, v, w, x, y, z;
+	int error;
+
+	analog_name(analog);
+	snprintf(analog->phys, sizeof(analog->phys),
+		 "%s/input%d", port->gameport->phys, index);
+	analog->buttons = (analog->mask & ANALOG_GAMEPAD) ? analog_pad_btn : analog_joy_btn;
+
+	analog->dev = input_dev = input_allocate_device();
+	if (!input_dev)
+		return -ENOMEM;
+
+	input_dev->name = analog->name;
+	input_dev->phys = analog->phys;
+	input_dev->id.bustype = BUS_GAMEPORT;
+	input_dev->id.vendor = GAMEPORT_ID_VENDOR_ANALOG;
+	input_dev->id.product = analog->mask >> 4;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &port->gameport->dev;
+
+	input_set_drvdata(input_dev, port);
+
+	input_dev->open = analog_open;
+	input_dev->close = analog_close;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	for (i = j = 0; i < 4; i++)
+		if (analog->mask & (1 << i)) {
+
+			t = analog_axes[j];
+			x = port->axes[i];
+			y = (port->axes[0] + port->axes[1]) >> 1;
+			z = y - port->axes[i];
+			z = z > 0 ? z : -z;
+			v = (x >> 3);
+			w = (x >> 3);
+
+			if ((i == 2 || i == 3) && (j == 2 || j == 3) && (z > (y >> 3)))
+				x = y;
+
+			if (analog->mask & ANALOG_SAITEK) {
+				if (i == 2) x = port->axes[i];
+				v = x - (x >> 2);
+				w = (x >> 4);
+			}
+
+			input_set_abs_params(input_dev, t, v, (x << 1) - v, port->fuzz, w);
+			j++;
+		}
+
+	for (i = j = 0; i < 3; i++)
+		if (analog->mask & analog_exts[i])
+			for (x = 0; x < 2; x++) {
+				t = analog_hats[j++];
+				input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+			}
+
+	for (i = j = 0; i < 4; i++)
+		if (analog->mask & (0x10 << i))
+			set_bit(analog->buttons[j++], input_dev->keybit);
+
+	if (analog->mask & ANALOG_BTNS_CHF)
+		for (i = 0; i < 2; i++)
+			set_bit(analog->buttons[j++], input_dev->keybit);
+
+	if (analog->mask & ANALOG_HBTN_CHF)
+		for (i = 0; i < 4; i++)
+			set_bit(analog->buttons[j++], input_dev->keybit);
+
+	for (i = 0; i < 4; i++)
+		if (analog->mask & (ANALOG_BTN_TL << i))
+			set_bit(analog_pads[i], input_dev->keybit);
+
+	analog_decode(analog, port->axes, port->initial, port->buttons);
+
+	error = input_register_device(analog->dev);
+	if (error) {
+		input_free_device(analog->dev);
+		return error;
+	}
+
+	return 0;
+}
+
+/*
+ * analog_init_devices() sets up device-specific values and registers the input devices.
+ */
+
+static int analog_init_masks(struct analog_port *port)
+{
+	int i;
+	struct analog *analog = port->analog;
+	int max[4];
+
+	if (!port->mask)
+		return -1;
+
+	if ((port->mask & 3) != 3 && port->mask != 0xc) {
+		printk(KERN_WARNING "analog.c: Unknown joystick device found  "
+			"(data=%#x, %s), probably not analog joystick.\n",
+			port->mask, port->gameport->phys);
+		return -1;
+	}
+
+
+	i = analog_options[0]; /* FIXME !!! - need to specify options for different ports */
+
+	analog[0].mask = i & 0xfffff;
+
+	analog[0].mask &= ~(ANALOG_AXES_STD | ANALOG_HAT_FCS | ANALOG_BTNS_GAMEPAD)
+			| port->mask | ((port->mask << 8) & ANALOG_HAT_FCS)
+			| ((port->mask << 10) & ANALOG_BTNS_TLR) | ((port->mask << 12) & ANALOG_BTNS_TLR2);
+
+	analog[0].mask &= ~(ANALOG_HAT2_CHF)
+			| ((analog[0].mask & ANALOG_HBTN_CHF) ? 0 : ANALOG_HAT2_CHF);
+
+	analog[0].mask &= ~(ANALOG_THROTTLE | ANALOG_BTN_TR | ANALOG_BTN_TR2)
+			| ((~analog[0].mask & ANALOG_HAT_FCS) >> 8)
+			| ((~analog[0].mask & ANALOG_HAT_FCS) << 2)
+			| ((~analog[0].mask & ANALOG_HAT_FCS) << 4);
+
+	analog[0].mask &= ~(ANALOG_THROTTLE | ANALOG_RUDDER)
+			| (((~analog[0].mask & ANALOG_BTNS_TLR ) >> 10)
+			&  ((~analog[0].mask & ANALOG_BTNS_TLR2) >> 12));
+
+	analog[1].mask = ((i >> 20) & 0xff) | ((i >> 12) & 0xf0000);
+
+	analog[1].mask &= (analog[0].mask & ANALOG_EXTENSIONS) ? ANALOG_GAMEPAD
+			: (((ANALOG_BTNS_STD | port->mask) & ~analog[0].mask) | ANALOG_GAMEPAD);
+
+	if (port->cooked) {
+
+		for (i = 0; i < 4; i++) max[i] = port->axes[i] << 1;
+
+		if ((analog[0].mask & 0x7) == 0x7) max[2] = (max[0] + max[1]) >> 1;
+		if ((analog[0].mask & 0xb) == 0xb) max[3] = (max[0] + max[1]) >> 1;
+		if ((analog[0].mask & ANALOG_BTN_TL) && !(analog[0].mask & ANALOG_BTN_TL2)) max[2] >>= 1;
+		if ((analog[0].mask & ANALOG_BTN_TR) && !(analog[0].mask & ANALOG_BTN_TR2)) max[3] >>= 1;
+		if ((analog[0].mask & ANALOG_HAT_FCS)) max[3] >>= 1;
+
+		gameport_calibrate(port->gameport, port->axes, max);
+	}
+
+	for (i = 0; i < 4; i++)
+		port->initial[i] = port->axes[i];
+
+	return -!(analog[0].mask || analog[1].mask);
+}
+
+static int analog_init_port(struct gameport *gameport, struct gameport_driver *drv, struct analog_port *port)
+{
+	int i, t, u, v;
+
+	port->gameport = gameport;
+
+	gameport_set_drvdata(gameport, port);
+
+	if (!gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
+
+		analog_calibrate_timer(port);
+
+		gameport_trigger(gameport);
+		t = gameport_read(gameport);
+		msleep(ANALOG_MAX_TIME);
+		port->mask = (gameport_read(gameport) ^ t) & t & 0xf;
+		port->fuzz = (NSEC_PER_MSEC * ANALOG_FUZZ_MAGIC) / port->loop / 1000 + ANALOG_FUZZ_BITS;
+
+		for (i = 0; i < ANALOG_INIT_RETRIES; i++) {
+			if (!analog_cooked_read(port))
+				break;
+			msleep(ANALOG_MAX_TIME);
+		}
+
+		u = v = 0;
+
+		msleep(ANALOG_MAX_TIME);
+		t = gameport_time(gameport, ANALOG_MAX_TIME * 1000);
+		gameport_trigger(gameport);
+		while ((gameport_read(port->gameport) & port->mask) && (u < t))
+			u++;
+		udelay(ANALOG_SAITEK_DELAY);
+		t = gameport_time(gameport, ANALOG_SAITEK_TIME);
+		gameport_trigger(gameport);
+		while ((gameport_read(port->gameport) & port->mask) && (v < t))
+			v++;
+
+		if (v < (u >> 1)) { /* FIXME - more than one port */
+			analog_options[0] |= /* FIXME - more than one port */
+				ANALOG_SAITEK | ANALOG_BTNS_CHF | ANALOG_HBTN_CHF | ANALOG_HAT1_CHF;
+			return 0;
+		}
+
+		gameport_close(gameport);
+	}
+
+	if (!gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
+
+		for (i = 0; i < ANALOG_INIT_RETRIES; i++)
+			if (!gameport_cooked_read(gameport, port->axes, &port->buttons))
+				break;
+		for (i = 0; i < 4; i++)
+			if (port->axes[i] != -1)
+				port->mask |= 1 << i;
+
+		port->fuzz = gameport->fuzz;
+		port->cooked = 1;
+		return 0;
+	}
+
+	return gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+}
+
+static int analog_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct analog_port *port;
+	int i;
+	int err;
+
+	if (!(port = kzalloc(sizeof(struct analog_port), GFP_KERNEL)))
+		return -ENOMEM;
+
+	err = analog_init_port(gameport, drv, port);
+	if (err)
+		goto fail1;
+
+	err = analog_init_masks(port);
+	if (err)
+		goto fail2;
+
+	gameport_set_poll_handler(gameport, analog_poll);
+	gameport_set_poll_interval(gameport, 10);
+
+	for (i = 0; i < 2; i++)
+		if (port->analog[i].mask) {
+			err = analog_init_device(port, port->analog + i, i);
+			if (err)
+				goto fail3;
+		}
+
+	return 0;
+
+ fail3: while (--i >= 0)
+		if (port->analog[i].mask)
+			input_unregister_device(port->analog[i].dev);
+ fail2:	gameport_close(gameport);
+ fail1:	gameport_set_drvdata(gameport, NULL);
+	kfree(port);
+	return err;
+}
+
+static void analog_disconnect(struct gameport *gameport)
+{
+	struct analog_port *port = gameport_get_drvdata(gameport);
+	int i;
+
+	for (i = 0; i < 2; i++)
+		if (port->analog[i].mask)
+			input_unregister_device(port->analog[i].dev);
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	printk(KERN_INFO "analog.c: %d out of %d reads (%d%%) on %s failed\n",
+		port->bads, port->reads, port->reads ? (port->bads * 100 / port->reads) : 0,
+		port->gameport->phys);
+	kfree(port);
+}
+
+struct analog_types {
+	char *name;
+	int value;
+};
+
+static struct analog_types analog_types[] = {
+	{ "none",	0x00000000 },
+	{ "auto",	0x000000ff },
+	{ "2btn",	0x0000003f },
+	{ "y-joy",	0x0cc00033 },
+	{ "y-pad",	0x8cc80033 },
+	{ "fcs",	0x000008f7 },
+	{ "chf",	0x000002ff },
+	{ "fullchf",	0x000007ff },
+	{ "gamepad",	0x000830f3 },
+	{ "gamepad8",	0x0008f0f3 },
+	{ NULL, 0 }
+};
+
+static void analog_parse_options(void)
+{
+	int i, j;
+	char *end;
+
+	for (i = 0; i < js_nargs; i++) {
+
+		for (j = 0; analog_types[j].name; j++)
+			if (!strcmp(analog_types[j].name, js[i])) {
+				analog_options[i] = analog_types[j].value;
+				break;
+			}
+		if (analog_types[j].name) continue;
+
+		analog_options[i] = simple_strtoul(js[i], &end, 0);
+		if (end != js[i]) continue;
+
+		analog_options[i] = 0xff;
+		if (!strlen(js[i])) continue;
+
+		printk(KERN_WARNING "analog.c: Bad config for port %d - \"%s\"\n", i, js[i]);
+	}
+
+	for (; i < ANALOG_PORTS; i++)
+		analog_options[i] = 0xff;
+}
+
+/*
+ * The gameport device structure.
+ */
+
+static struct gameport_driver analog_drv = {
+	.driver		= {
+		.name	= "analog",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= analog_connect,
+	.disconnect	= analog_disconnect,
+};
+
+static int __init analog_init(void)
+{
+	analog_parse_options();
+	return gameport_register_driver(&analog_drv);
+}
+
+static void __exit analog_exit(void)
+{
+	gameport_unregister_driver(&analog_drv);
+}
+
+module_init(analog_init);
+module_exit(analog_exit);
diff --git a/drivers/input/joystick/as5011.c b/drivers/input/joystick/as5011.c
new file mode 100644
index 000000000..2beda2902
--- /dev/null
+++ b/drivers/input/joystick/as5011.c
@@ -0,0 +1,357 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2010, 2011 Fabien Marteau <fabien.marteau@armadeus.com>
+ * Sponsored by ARMadeus Systems
+ *
+ * Driver for Austria Microsystems joysticks AS5011
+ *
+ * TODO:
+ *	- Power on the chip when open() and power down when close()
+ *	- Manage power mode
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/input/as5011.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#define DRIVER_DESC "Driver for Austria Microsystems AS5011 joystick"
+#define MODULE_DEVICE_ALIAS "as5011"
+
+MODULE_AUTHOR("Fabien Marteau <fabien.marteau@armadeus.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/* registers */
+#define AS5011_CTRL1		0x76
+#define AS5011_CTRL2		0x75
+#define AS5011_XP		0x43
+#define AS5011_XN		0x44
+#define AS5011_YP		0x53
+#define AS5011_YN		0x54
+#define AS5011_X_REG		0x41
+#define AS5011_Y_REG		0x42
+#define AS5011_X_RES_INT	0x51
+#define AS5011_Y_RES_INT	0x52
+
+/* CTRL1 bits */
+#define AS5011_CTRL1_LP_PULSED		0x80
+#define AS5011_CTRL1_LP_ACTIVE		0x40
+#define AS5011_CTRL1_LP_CONTINUE	0x20
+#define AS5011_CTRL1_INT_WUP_EN		0x10
+#define AS5011_CTRL1_INT_ACT_EN		0x08
+#define AS5011_CTRL1_EXT_CLK_EN		0x04
+#define AS5011_CTRL1_SOFT_RST		0x02
+#define AS5011_CTRL1_DATA_VALID		0x01
+
+/* CTRL2 bits */
+#define AS5011_CTRL2_EXT_SAMPLE_EN	0x08
+#define AS5011_CTRL2_RC_BIAS_ON		0x04
+#define AS5011_CTRL2_INV_SPINNING	0x02
+
+#define AS5011_MAX_AXIS	80
+#define AS5011_MIN_AXIS	(-80)
+#define AS5011_FUZZ	8
+#define AS5011_FLAT	40
+
+struct as5011_device {
+	struct input_dev *input_dev;
+	struct i2c_client *i2c_client;
+	unsigned int button_gpio;
+	unsigned int button_irq;
+	unsigned int axis_irq;
+};
+
+static int as5011_i2c_write(struct i2c_client *client,
+			    uint8_t aregaddr,
+			    uint8_t avalue)
+{
+	uint8_t data[2] = { aregaddr, avalue };
+	struct i2c_msg msg = {
+		.addr = client->addr,
+		.flags = I2C_M_IGNORE_NAK,
+		.len = 2,
+		.buf = (uint8_t *)data
+	};
+	int error;
+
+	error = i2c_transfer(client->adapter, &msg, 1);
+	return error < 0 ? error : 0;
+}
+
+static int as5011_i2c_read(struct i2c_client *client,
+			   uint8_t aregaddr, signed char *value)
+{
+	uint8_t data[2] = { aregaddr };
+	struct i2c_msg msg_set[2] = {
+		{
+			.addr = client->addr,
+			.flags = I2C_M_REV_DIR_ADDR,
+			.len = 1,
+			.buf = (uint8_t *)data
+		},
+		{
+			.addr = client->addr,
+			.flags = I2C_M_RD | I2C_M_NOSTART,
+			.len = 1,
+			.buf = (uint8_t *)data
+		}
+	};
+	int error;
+
+	error = i2c_transfer(client->adapter, msg_set, 2);
+	if (error < 0)
+		return error;
+
+	*value = data[0] & 0x80 ? -1 * (1 + ~data[0]) : data[0];
+	return 0;
+}
+
+static irqreturn_t as5011_button_interrupt(int irq, void *dev_id)
+{
+	struct as5011_device *as5011 = dev_id;
+	int val = gpio_get_value_cansleep(as5011->button_gpio);
+
+	input_report_key(as5011->input_dev, BTN_JOYSTICK, !val);
+	input_sync(as5011->input_dev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t as5011_axis_interrupt(int irq, void *dev_id)
+{
+	struct as5011_device *as5011 = dev_id;
+	int error;
+	signed char x, y;
+
+	error = as5011_i2c_read(as5011->i2c_client, AS5011_X_RES_INT, &x);
+	if (error < 0)
+		goto out;
+
+	error = as5011_i2c_read(as5011->i2c_client, AS5011_Y_RES_INT, &y);
+	if (error < 0)
+		goto out;
+
+	input_report_abs(as5011->input_dev, ABS_X, x);
+	input_report_abs(as5011->input_dev, ABS_Y, y);
+	input_sync(as5011->input_dev);
+
+out:
+	return IRQ_HANDLED;
+}
+
+static int as5011_configure_chip(struct as5011_device *as5011,
+				const struct as5011_platform_data *plat_dat)
+{
+	struct i2c_client *client = as5011->i2c_client;
+	int error;
+	signed char value;
+
+	/* chip soft reset */
+	error = as5011_i2c_write(client, AS5011_CTRL1,
+				 AS5011_CTRL1_SOFT_RST);
+	if (error < 0) {
+		dev_err(&client->dev, "Soft reset failed\n");
+		return error;
+	}
+
+	mdelay(10);
+
+	error = as5011_i2c_write(client, AS5011_CTRL1,
+				 AS5011_CTRL1_LP_PULSED |
+				 AS5011_CTRL1_LP_ACTIVE |
+				 AS5011_CTRL1_INT_ACT_EN);
+	if (error < 0) {
+		dev_err(&client->dev, "Power config failed\n");
+		return error;
+	}
+
+	error = as5011_i2c_write(client, AS5011_CTRL2,
+				 AS5011_CTRL2_INV_SPINNING);
+	if (error < 0) {
+		dev_err(&client->dev, "Can't invert spinning\n");
+		return error;
+	}
+
+	/* write threshold */
+	error = as5011_i2c_write(client, AS5011_XP, plat_dat->xp);
+	if (error < 0) {
+		dev_err(&client->dev, "Can't write threshold\n");
+		return error;
+	}
+
+	error = as5011_i2c_write(client, AS5011_XN, plat_dat->xn);
+	if (error < 0) {
+		dev_err(&client->dev, "Can't write threshold\n");
+		return error;
+	}
+
+	error = as5011_i2c_write(client, AS5011_YP, plat_dat->yp);
+	if (error < 0) {
+		dev_err(&client->dev, "Can't write threshold\n");
+		return error;
+	}
+
+	error = as5011_i2c_write(client, AS5011_YN, plat_dat->yn);
+	if (error < 0) {
+		dev_err(&client->dev, "Can't write threshold\n");
+		return error;
+	}
+
+	/* to free irq gpio in chip */
+	error = as5011_i2c_read(client, AS5011_X_RES_INT, &value);
+	if (error < 0) {
+		dev_err(&client->dev, "Can't read i2c X resolution value\n");
+		return error;
+	}
+
+	return 0;
+}
+
+static int as5011_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	const struct as5011_platform_data *plat_data;
+	struct as5011_device *as5011;
+	struct input_dev *input_dev;
+	int irq;
+	int error;
+
+	plat_data = dev_get_platdata(&client->dev);
+	if (!plat_data)
+		return -EINVAL;
+
+	if (!plat_data->axis_irq) {
+		dev_err(&client->dev, "No axis IRQ?\n");
+		return -EINVAL;
+	}
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_NOSTART |
+				     I2C_FUNC_PROTOCOL_MANGLING)) {
+		dev_err(&client->dev,
+			"need i2c bus that supports protocol mangling\n");
+		return -ENODEV;
+	}
+
+	as5011 = kmalloc(sizeof(struct as5011_device), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!as5011 || !input_dev) {
+		dev_err(&client->dev,
+			"Can't allocate memory for device structure\n");
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	as5011->i2c_client = client;
+	as5011->input_dev = input_dev;
+	as5011->button_gpio = plat_data->button_gpio;
+	as5011->axis_irq = plat_data->axis_irq;
+
+	input_dev->name = "Austria Microsystem as5011 joystick";
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->dev.parent = &client->dev;
+
+	input_set_capability(input_dev, EV_KEY, BTN_JOYSTICK);
+
+	input_set_abs_params(input_dev, ABS_X,
+		AS5011_MIN_AXIS, AS5011_MAX_AXIS, AS5011_FUZZ, AS5011_FLAT);
+	input_set_abs_params(as5011->input_dev, ABS_Y,
+		AS5011_MIN_AXIS, AS5011_MAX_AXIS, AS5011_FUZZ, AS5011_FLAT);
+
+	error = gpio_request(as5011->button_gpio, "AS5011 button");
+	if (error < 0) {
+		dev_err(&client->dev, "Failed to request button gpio\n");
+		goto err_free_mem;
+	}
+
+	irq = gpio_to_irq(as5011->button_gpio);
+	if (irq < 0) {
+		dev_err(&client->dev,
+			"Failed to get irq number for button gpio\n");
+		error = irq;
+		goto err_free_button_gpio;
+	}
+
+	as5011->button_irq = irq;
+
+	error = request_threaded_irq(as5011->button_irq,
+				     NULL, as5011_button_interrupt,
+				     IRQF_TRIGGER_RISING |
+					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+				     "as5011_button", as5011);
+	if (error < 0) {
+		dev_err(&client->dev,
+			"Can't allocate button irq %d\n", as5011->button_irq);
+		goto err_free_button_gpio;
+	}
+
+	error = as5011_configure_chip(as5011, plat_data);
+	if (error)
+		goto err_free_button_irq;
+
+	error = request_threaded_irq(as5011->axis_irq, NULL,
+				     as5011_axis_interrupt,
+				     plat_data->axis_irqflags | IRQF_ONESHOT,
+				     "as5011_joystick", as5011);
+	if (error) {
+		dev_err(&client->dev,
+			"Can't allocate axis irq %d\n", plat_data->axis_irq);
+		goto err_free_button_irq;
+	}
+
+	error = input_register_device(as5011->input_dev);
+	if (error) {
+		dev_err(&client->dev, "Failed to register input device\n");
+		goto err_free_axis_irq;
+	}
+
+	i2c_set_clientdata(client, as5011);
+
+	return 0;
+
+err_free_axis_irq:
+	free_irq(as5011->axis_irq, as5011);
+err_free_button_irq:
+	free_irq(as5011->button_irq, as5011);
+err_free_button_gpio:
+	gpio_free(as5011->button_gpio);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(as5011);
+
+	return error;
+}
+
+static void as5011_remove(struct i2c_client *client)
+{
+	struct as5011_device *as5011 = i2c_get_clientdata(client);
+
+	free_irq(as5011->axis_irq, as5011);
+	free_irq(as5011->button_irq, as5011);
+	gpio_free(as5011->button_gpio);
+
+	input_unregister_device(as5011->input_dev);
+	kfree(as5011);
+}
+
+static const struct i2c_device_id as5011_id[] = {
+	{ MODULE_DEVICE_ALIAS, 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, as5011_id);
+
+static struct i2c_driver as5011_driver = {
+	.driver = {
+		.name = "as5011",
+	},
+	.probe		= as5011_probe,
+	.remove		= as5011_remove,
+	.id_table	= as5011_id,
+};
+
+module_i2c_driver(as5011_driver);
diff --git a/drivers/input/joystick/cobra.c b/drivers/input/joystick/cobra.c
new file mode 100644
index 000000000..7ff78c938
--- /dev/null
+++ b/drivers/input/joystick/cobra.c
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Creative Labs Blaster GamePad Cobra driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"Creative Labs Blaster GamePad Cobra driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define COBRA_MAX_STROBE	45	/* 45 us max wait for first strobe */
+#define COBRA_LENGTH		36
+
+static int cobra_btn[] = { BTN_START, BTN_SELECT, BTN_TL, BTN_TR, BTN_X, BTN_Y, BTN_Z, BTN_A, BTN_B, BTN_C, BTN_TL2, BTN_TR2, 0 };
+
+struct cobra {
+	struct gameport *gameport;
+	struct input_dev *dev[2];
+	int reads;
+	int bads;
+	unsigned char exists;
+	char phys[2][32];
+};
+
+static unsigned char cobra_read_packet(struct gameport *gameport, unsigned int *data)
+{
+	unsigned long flags;
+	unsigned char u, v, w;
+	__u64 buf[2];
+	int r[2], t[2];
+	int i, j, ret;
+
+	int strobe = gameport_time(gameport, COBRA_MAX_STROBE);
+
+	for (i = 0; i < 2; i++) {
+		r[i] = buf[i] = 0;
+		t[i] = COBRA_MAX_STROBE;
+	}
+
+	local_irq_save(flags);
+
+	u = gameport_read(gameport);
+
+	do {
+		t[0]--; t[1]--;
+		v = gameport_read(gameport);
+		for (i = 0, w = u ^ v; i < 2 && w; i++, w >>= 2)
+			if (w & 0x30) {
+				if ((w & 0x30) < 0x30 && r[i] < COBRA_LENGTH && t[i] > 0) {
+					buf[i] |= (__u64)((w >> 5) & 1) << r[i]++;
+					t[i] = strobe;
+					u = v;
+				} else t[i] = 0;
+			}
+	} while (t[0] > 0 || t[1] > 0);
+
+	local_irq_restore(flags);
+
+	ret = 0;
+
+	for (i = 0; i < 2; i++) {
+
+		if (r[i] != COBRA_LENGTH) continue;
+
+		for (j = 0; j < COBRA_LENGTH && (buf[i] & 0x04104107f) ^ 0x041041040; j++)
+			buf[i] = (buf[i] >> 1) | ((__u64)(buf[i] & 1) << (COBRA_LENGTH - 1));
+
+		if (j < COBRA_LENGTH) ret |= (1 << i);
+
+		data[i] = ((buf[i] >>  7) & 0x000001f) | ((buf[i] >>  8) & 0x00003e0)
+			| ((buf[i] >>  9) & 0x0007c00) | ((buf[i] >> 10) & 0x00f8000)
+			| ((buf[i] >> 11) & 0x1f00000);
+
+	}
+
+	return ret;
+}
+
+static void cobra_poll(struct gameport *gameport)
+{
+	struct cobra *cobra = gameport_get_drvdata(gameport);
+	struct input_dev *dev;
+	unsigned int data[2];
+	int i, j, r;
+
+	cobra->reads++;
+
+	if ((r = cobra_read_packet(gameport, data)) != cobra->exists) {
+		cobra->bads++;
+		return;
+	}
+
+	for (i = 0; i < 2; i++)
+		if (cobra->exists & r & (1 << i)) {
+
+			dev = cobra->dev[i];
+
+			input_report_abs(dev, ABS_X, ((data[i] >> 4) & 1) - ((data[i] >> 3) & 1));
+			input_report_abs(dev, ABS_Y, ((data[i] >> 2) & 1) - ((data[i] >> 1) & 1));
+
+			for (j = 0; cobra_btn[j]; j++)
+				input_report_key(dev, cobra_btn[j], data[i] & (0x20 << j));
+
+			input_sync(dev);
+
+		}
+}
+
+static int cobra_open(struct input_dev *dev)
+{
+	struct cobra *cobra = input_get_drvdata(dev);
+
+	gameport_start_polling(cobra->gameport);
+	return 0;
+}
+
+static void cobra_close(struct input_dev *dev)
+{
+	struct cobra *cobra = input_get_drvdata(dev);
+
+	gameport_stop_polling(cobra->gameport);
+}
+
+static int cobra_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct cobra *cobra;
+	struct input_dev *input_dev;
+	unsigned int data[2];
+	int i, j;
+	int err;
+
+	cobra = kzalloc(sizeof(struct cobra), GFP_KERNEL);
+	if (!cobra)
+		return -ENOMEM;
+
+	cobra->gameport = gameport;
+
+	gameport_set_drvdata(gameport, cobra);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	cobra->exists = cobra_read_packet(gameport, data);
+
+	for (i = 0; i < 2; i++)
+		if ((cobra->exists >> i) & data[i] & 1) {
+			printk(KERN_WARNING "cobra.c: Device %d on %s has the Ext bit set. ID is: %d"
+				" Contact vojtech@ucw.cz\n", i, gameport->phys, (data[i] >> 2) & 7);
+			cobra->exists &= ~(1 << i);
+		}
+
+	if (!cobra->exists) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	gameport_set_poll_handler(gameport, cobra_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	for (i = 0; i < 2; i++) {
+		if (~(cobra->exists >> i) & 1)
+			continue;
+
+		cobra->dev[i] = input_dev = input_allocate_device();
+		if (!input_dev) {
+			err = -ENOMEM;
+			goto fail3;
+		}
+
+		snprintf(cobra->phys[i], sizeof(cobra->phys[i]),
+			 "%s/input%d", gameport->phys, i);
+
+		input_dev->name = "Creative Labs Blaster GamePad Cobra";
+		input_dev->phys = cobra->phys[i];
+		input_dev->id.bustype = BUS_GAMEPORT;
+		input_dev->id.vendor = GAMEPORT_ID_VENDOR_CREATIVE;
+		input_dev->id.product = 0x0008;
+		input_dev->id.version = 0x0100;
+		input_dev->dev.parent = &gameport->dev;
+
+		input_set_drvdata(input_dev, cobra);
+
+		input_dev->open = cobra_open;
+		input_dev->close = cobra_close;
+
+		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+		input_set_abs_params(input_dev, ABS_X, -1, 1, 0, 0);
+		input_set_abs_params(input_dev, ABS_Y, -1, 1, 0, 0);
+		for (j = 0; cobra_btn[j]; j++)
+			set_bit(cobra_btn[j], input_dev->keybit);
+
+		err = input_register_device(cobra->dev[i]);
+		if (err)
+			goto fail4;
+	}
+
+	return 0;
+
+ fail4:	input_free_device(cobra->dev[i]);
+ fail3:	while (--i >= 0)
+		if (cobra->dev[i])
+			input_unregister_device(cobra->dev[i]);
+ fail2:	gameport_close(gameport);
+ fail1:	gameport_set_drvdata(gameport, NULL);
+	kfree(cobra);
+	return err;
+}
+
+static void cobra_disconnect(struct gameport *gameport)
+{
+	struct cobra *cobra = gameport_get_drvdata(gameport);
+	int i;
+
+	for (i = 0; i < 2; i++)
+		if ((cobra->exists >> i) & 1)
+			input_unregister_device(cobra->dev[i]);
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	kfree(cobra);
+}
+
+static struct gameport_driver cobra_drv = {
+	.driver		= {
+		.name	= "cobra",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= cobra_connect,
+	.disconnect	= cobra_disconnect,
+};
+
+module_gameport_driver(cobra_drv);
diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
new file mode 100644
index 000000000..4fba28b1a
--- /dev/null
+++ b/drivers/input/joystick/db9.c
@@ -0,0 +1,708 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *	Andree Borrmann		Mats Sjövall
+ */
+
+/*
+ * Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver");
+MODULE_LICENSE("GPL");
+
+struct db9_config {
+	int args[2];
+	unsigned int nargs;
+};
+
+#define DB9_MAX_PORTS		3
+static struct db9_config db9_cfg[DB9_MAX_PORTS];
+
+module_param_array_named(dev, db9_cfg[0].args, int, &db9_cfg[0].nargs, 0);
+MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");
+module_param_array_named(dev2, db9_cfg[1].args, int, &db9_cfg[1].nargs, 0);
+MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");
+module_param_array_named(dev3, db9_cfg[2].args, int, &db9_cfg[2].nargs, 0);
+MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)");
+
+#define DB9_ARG_PARPORT		0
+#define DB9_ARG_MODE		1
+
+#define DB9_MULTI_STICK		0x01
+#define DB9_MULTI2_STICK	0x02
+#define DB9_GENESIS_PAD		0x03
+#define DB9_GENESIS5_PAD	0x05
+#define DB9_GENESIS6_PAD	0x06
+#define DB9_SATURN_PAD		0x07
+#define DB9_MULTI_0802		0x08
+#define DB9_MULTI_0802_2	0x09
+#define DB9_CD32_PAD		0x0A
+#define DB9_SATURN_DPP		0x0B
+#define DB9_SATURN_DPP_2	0x0C
+#define DB9_MAX_PAD		0x0D
+
+#define DB9_UP			0x01
+#define DB9_DOWN		0x02
+#define DB9_LEFT		0x04
+#define DB9_RIGHT		0x08
+#define DB9_FIRE1		0x10
+#define DB9_FIRE2		0x20
+#define DB9_FIRE3		0x40
+#define DB9_FIRE4		0x80
+
+#define DB9_NORMAL		0x0a
+#define DB9_NOSELECT		0x08
+
+#define DB9_GENESIS6_DELAY	14
+#define DB9_REFRESH_TIME	HZ/100
+
+#define DB9_MAX_DEVICES		2
+
+struct db9_mode_data {
+	const char *name;
+	const short *buttons;
+	int n_buttons;
+	int n_pads;
+	int n_axis;
+	int bidirectional;
+	int reverse;
+};
+
+struct db9 {
+	struct input_dev *dev[DB9_MAX_DEVICES];
+	struct timer_list timer;
+	struct pardevice *pd;
+	int mode;
+	int used;
+	int parportno;
+	struct mutex mutex;
+	char phys[DB9_MAX_DEVICES][32];
+};
+
+static struct db9 *db9_base[3];
+
+static const short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
+static const short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
+static const short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
+static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
+
+static const struct db9_mode_data db9_modes[] = {
+	{ NULL,					 NULL,		  0,  0,  0,  0,  0 },
+	{ "Multisystem joystick",		 db9_multi_btn,	  1,  1,  2,  1,  1 },
+	{ "Multisystem joystick (2 fire)",	 db9_multi_btn,	  2,  1,  2,  1,  1 },
+	{ "Genesis pad",			 db9_genesis_btn, 4,  1,  2,  1,  1 },
+	{ NULL,					 NULL,		  0,  0,  0,  0,  0 },
+	{ "Genesis 5 pad",			 db9_genesis_btn, 6,  1,  2,  1,  1 },
+	{ "Genesis 6 pad",			 db9_genesis_btn, 8,  1,  2,  1,  1 },
+	{ "Saturn pad",				 db9_cd32_btn,	  9,  6,  7,  0,  1 },
+	{ "Multisystem (0.8.0.2) joystick",	 db9_multi_btn,	  1,  1,  2,  1,  1 },
+	{ "Multisystem (0.8.0.2-dual) joystick", db9_multi_btn,	  1,  2,  2,  1,  1 },
+	{ "Amiga CD-32 pad",			 db9_cd32_btn,	  7,  1,  2,  1,  1 },
+	{ "Saturn dpp",				 db9_cd32_btn,	  9,  6,  7,  0,  0 },
+	{ "Saturn dpp dual",			 db9_cd32_btn,	  9,  12, 7,  0,  0 },
+};
+
+/*
+ * Saturn controllers
+ */
+#define DB9_SATURN_DELAY 300
+static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };
+static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 };
+
+/*
+ * db9_saturn_write_sub() writes 2 bit data.
+ */
+static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub)
+{
+	unsigned char c;
+
+	switch (type) {
+	case 1: /* DPP1 */
+		c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data;
+		parport_write_data(port, c);
+		break;
+	case 2: /* DPP2 */
+		c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03;
+		parport_write_data(port, c);
+		break;
+	case 0:	/* DB9 */
+		c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered;
+		parport_write_control(port, c);
+		break;
+	}
+}
+
+/*
+ * gc_saturn_read_sub() reads 4 bit data.
+ */
+static unsigned char db9_saturn_read_sub(struct parport *port, int type)
+{
+	unsigned char data;
+
+	if (type) {
+		/* DPP */
+		data = parport_read_status(port) ^ 0x80;
+		return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0)
+		     | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0);
+	} else {
+		/* DB9 */
+		data = parport_read_data(port) & 0x0f;
+		return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0)
+		     | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0);
+	}
+}
+
+/*
+ * db9_saturn_read_analog() sends clock and reads 8 bit data.
+ */
+static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered)
+{
+	unsigned char data;
+
+	db9_saturn_write_sub(port, type, 0, powered, 0);
+	udelay(DB9_SATURN_DELAY);
+	data = db9_saturn_read_sub(port, type) << 4;
+	db9_saturn_write_sub(port, type, 2, powered, 0);
+	udelay(DB9_SATURN_DELAY);
+	data |= db9_saturn_read_sub(port, type);
+	return data;
+}
+
+/*
+ * db9_saturn_read_packet() reads whole saturn packet at connector
+ * and returns device identifier code.
+ */
+static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered)
+{
+	int i, j;
+	unsigned char tmp;
+
+	db9_saturn_write_sub(port, type, 3, powered, 0);
+	data[0] = db9_saturn_read_sub(port, type);
+	switch (data[0] & 0x0f) {
+	case 0xf:
+		/* 1111  no pad */
+		return data[0] = 0xff;
+	case 0x4: case 0x4 | 0x8:
+		/* ?100 : digital controller */
+		db9_saturn_write_sub(port, type, 0, powered, 1);
+		data[2] = db9_saturn_read_sub(port, type) << 4;
+		db9_saturn_write_sub(port, type, 2, powered, 1);
+		data[1] = db9_saturn_read_sub(port, type) << 4;
+		db9_saturn_write_sub(port, type, 1, powered, 1);
+		data[1] |= db9_saturn_read_sub(port, type);
+		db9_saturn_write_sub(port, type, 3, powered, 1);
+		/* data[2] |= db9_saturn_read_sub(port, type); */
+		data[2] |= data[0];
+		return data[0] = 0x02;
+	case 0x1:
+		/* 0001 : analog controller or multitap */
+		db9_saturn_write_sub(port, type, 2, powered, 0);
+		udelay(DB9_SATURN_DELAY);
+		data[0] = db9_saturn_read_analog(port, type, powered);
+		if (data[0] != 0x41) {
+			/* read analog controller */
+			for (i = 0; i < (data[0] & 0x0f); i++)
+				data[i + 1] = db9_saturn_read_analog(port, type, powered);
+			db9_saturn_write_sub(port, type, 3, powered, 0);
+			return data[0];
+		} else {
+			/* read multitap */
+			if (db9_saturn_read_analog(port, type, powered) != 0x60)
+				return data[0] = 0xff;
+			for (i = 0; i < 60; i += 10) {
+				data[i] = db9_saturn_read_analog(port, type, powered);
+				if (data[i] != 0xff)
+					/* read each pad */
+					for (j = 0; j < (data[i] & 0x0f); j++)
+						data[i + j + 1] = db9_saturn_read_analog(port, type, powered);
+			}
+			db9_saturn_write_sub(port, type, 3, powered, 0);
+			return 0x41;
+		}
+	case 0x0:
+		/* 0000 : mouse */
+		db9_saturn_write_sub(port, type, 2, powered, 0);
+		udelay(DB9_SATURN_DELAY);
+		tmp = db9_saturn_read_analog(port, type, powered);
+		if (tmp == 0xff) {
+			for (i = 0; i < 3; i++)
+				data[i + 1] = db9_saturn_read_analog(port, type, powered);
+			db9_saturn_write_sub(port, type, 3, powered, 0);
+			return data[0] = 0xe3;
+		}
+		fallthrough;
+	default:
+		return data[0];
+	}
+}
+
+/*
+ * db9_saturn_report() analyzes packet and reports.
+ */
+static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *devs[], int n, int max_pads)
+{
+	struct input_dev *dev;
+	int tmp, i, j;
+
+	tmp = (id == 0x41) ? 60 : 10;
+	for (j = 0; j < tmp && n < max_pads; j += 10, n++) {
+		dev = devs[n];
+		switch (data[j]) {
+		case 0x16: /* multi controller (analog 4 axis) */
+			input_report_abs(dev, db9_abs[5], data[j + 6]);
+			fallthrough;
+		case 0x15: /* mission stick (analog 3 axis) */
+			input_report_abs(dev, db9_abs[3], data[j + 4]);
+			input_report_abs(dev, db9_abs[4], data[j + 5]);
+			fallthrough;
+		case 0x13: /* racing controller (analog 1 axis) */
+			input_report_abs(dev, db9_abs[2], data[j + 3]);
+			fallthrough;
+		case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
+		case 0x02: /* digital pad (digital 2 axis + buttons) */
+			input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
+			input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
+			for (i = 0; i < 9; i++)
+				input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
+			break;
+		case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
+			input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
+			input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
+			for (i = 0; i < 9; i++)
+				input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
+			input_report_abs(dev, db9_abs[2], data[j + 3]);
+			input_report_abs(dev, db9_abs[3], data[j + 4]);
+			input_report_abs(dev, db9_abs[4], data[j + 5]);
+			/*
+			input_report_abs(dev, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
+			input_report_abs(dev, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
+			*/
+			input_report_abs(dev, db9_abs[6], data[j + 7]);
+			input_report_abs(dev, db9_abs[7], data[j + 8]);
+			input_report_abs(dev, db9_abs[5], data[j + 9]);
+			break;
+		case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
+			input_report_key(dev, BTN_A, data[j + 3] & 0x80);
+			input_report_abs(dev, db9_abs[2], data[j + 3] & 0x7f);
+			break;
+		case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
+			input_report_key(dev, BTN_START, data[j + 1] & 0x08);
+			input_report_key(dev, BTN_A, data[j + 1] & 0x04);
+			input_report_key(dev, BTN_C, data[j + 1] & 0x02);
+			input_report_key(dev, BTN_B, data[j + 1] & 0x01);
+			input_report_abs(dev, db9_abs[2], data[j + 2] ^ 0x80);
+			input_report_abs(dev, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
+			break;
+		case 0xff:
+		default: /* no pad */
+			input_report_abs(dev, db9_abs[0], 0);
+			input_report_abs(dev, db9_abs[1], 0);
+			for (i = 0; i < 9; i++)
+				input_report_key(dev, db9_cd32_btn[i], 0);
+			break;
+		}
+	}
+	return n;
+}
+
+static int db9_saturn(int mode, struct parport *port, struct input_dev *devs[])
+{
+	unsigned char id, data[60];
+	int type, n, max_pads;
+	int tmp, i;
+
+	switch (mode) {
+	case DB9_SATURN_PAD:
+		type = 0;
+		n = 1;
+		break;
+	case DB9_SATURN_DPP:
+		type = 1;
+		n = 1;
+		break;
+	case DB9_SATURN_DPP_2:
+		type = 1;
+		n = 2;
+		break;
+	default:
+		return -1;
+	}
+	max_pads = min(db9_modes[mode].n_pads, DB9_MAX_DEVICES);
+	for (tmp = 0, i = 0; i < n; i++) {
+		id = db9_saturn_read_packet(port, data, type + i, 1);
+		tmp = db9_saturn_report(id, data, devs, tmp, max_pads);
+	}
+	return 0;
+}
+
+static void db9_timer(struct timer_list *t)
+{
+	struct db9 *db9 = from_timer(db9, t, timer);
+	struct parport *port = db9->pd->port;
+	struct input_dev *dev = db9->dev[0];
+	struct input_dev *dev2 = db9->dev[1];
+	int data, i;
+
+	switch (db9->mode) {
+		case DB9_MULTI_0802_2:
+
+			data = parport_read_data(port) >> 3;
+
+			input_report_abs(dev2, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev2, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev2, BTN_TRIGGER, ~data & DB9_FIRE1);
+			fallthrough;
+
+		case DB9_MULTI_0802:
+
+			data = parport_read_status(port) >> 3;
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1);
+			break;
+
+		case DB9_MULTI_STICK:
+
+			data = parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
+			break;
+
+		case DB9_MULTI2_STICK:
+
+			data = parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_THUMB,   ~data & DB9_FIRE2);
+			break;
+
+		case DB9_GENESIS_PAD:
+
+			parport_write_control(port, DB9_NOSELECT);
+			data = parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
+
+			parport_write_control(port, DB9_NORMAL);
+			data = parport_read_data(port);
+
+			input_report_key(dev, BTN_A,     ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
+			break;
+
+		case DB9_GENESIS5_PAD:
+
+			parport_write_control(port, DB9_NOSELECT);
+			data = parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
+
+			parport_write_control(port, DB9_NORMAL);
+			data = parport_read_data(port);
+
+			input_report_key(dev, BTN_A,     ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_X,     ~data & DB9_FIRE2);
+			input_report_key(dev, BTN_Y,     ~data & DB9_LEFT);
+			input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
+			break;
+
+		case DB9_GENESIS6_PAD:
+
+			parport_write_control(port, DB9_NOSELECT); /* 1 */
+			udelay(DB9_GENESIS6_DELAY);
+			data = parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
+
+			parport_write_control(port, DB9_NORMAL);
+			udelay(DB9_GENESIS6_DELAY);
+			data = parport_read_data(port);
+
+			input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
+
+			parport_write_control(port, DB9_NOSELECT); /* 2 */
+			udelay(DB9_GENESIS6_DELAY);
+			parport_write_control(port, DB9_NORMAL);
+			udelay(DB9_GENESIS6_DELAY);
+			parport_write_control(port, DB9_NOSELECT); /* 3 */
+			udelay(DB9_GENESIS6_DELAY);
+			data=parport_read_data(port);
+
+			input_report_key(dev, BTN_X,    ~data & DB9_LEFT);
+			input_report_key(dev, BTN_Y,    ~data & DB9_DOWN);
+			input_report_key(dev, BTN_Z,    ~data & DB9_UP);
+			input_report_key(dev, BTN_MODE, ~data & DB9_RIGHT);
+
+			parport_write_control(port, DB9_NORMAL);
+			udelay(DB9_GENESIS6_DELAY);
+			parport_write_control(port, DB9_NOSELECT); /* 4 */
+			udelay(DB9_GENESIS6_DELAY);
+			parport_write_control(port, DB9_NORMAL);
+			break;
+
+		case DB9_SATURN_PAD:
+		case DB9_SATURN_DPP:
+		case DB9_SATURN_DPP_2:
+
+			db9_saturn(db9->mode, port, db9->dev);
+			break;
+
+		case DB9_CD32_PAD:
+
+			data = parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+
+			parport_write_control(port, 0x0a);
+
+			for (i = 0; i < 7; i++) {
+				data = parport_read_data(port);
+				parport_write_control(port, 0x02);
+				parport_write_control(port, 0x0a);
+				input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
+			}
+
+			parport_write_control(port, 0x00);
+			break;
+		}
+
+	input_sync(dev);
+
+	mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
+}
+
+static int db9_open(struct input_dev *dev)
+{
+	struct db9 *db9 = input_get_drvdata(dev);
+	struct parport *port = db9->pd->port;
+	int err;
+
+	err = mutex_lock_interruptible(&db9->mutex);
+	if (err)
+		return err;
+
+	if (!db9->used++) {
+		parport_claim(db9->pd);
+		parport_write_data(port, 0xff);
+		if (db9_modes[db9->mode].reverse) {
+			parport_data_reverse(port);
+			parport_write_control(port, DB9_NORMAL);
+		}
+		mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
+	}
+
+	mutex_unlock(&db9->mutex);
+	return 0;
+}
+
+static void db9_close(struct input_dev *dev)
+{
+	struct db9 *db9 = input_get_drvdata(dev);
+	struct parport *port = db9->pd->port;
+
+	mutex_lock(&db9->mutex);
+	if (!--db9->used) {
+		del_timer_sync(&db9->timer);
+		parport_write_control(port, 0x00);
+		parport_data_forward(port);
+		parport_release(db9->pd);
+	}
+	mutex_unlock(&db9->mutex);
+}
+
+static void db9_attach(struct parport *pp)
+{
+	struct db9 *db9;
+	const struct db9_mode_data *db9_mode;
+	struct pardevice *pd;
+	struct input_dev *input_dev;
+	int i, j, port_idx;
+	int mode;
+	struct pardev_cb db9_parport_cb;
+
+	for (port_idx = 0; port_idx < DB9_MAX_PORTS; port_idx++) {
+		if (db9_cfg[port_idx].nargs == 0 ||
+		    db9_cfg[port_idx].args[DB9_ARG_PARPORT] < 0)
+			continue;
+
+		if (db9_cfg[port_idx].args[DB9_ARG_PARPORT] == pp->number)
+			break;
+	}
+
+	if (port_idx == DB9_MAX_PORTS) {
+		pr_debug("Not using parport%d.\n", pp->number);
+		return;
+	}
+
+	mode = db9_cfg[port_idx].args[DB9_ARG_MODE];
+
+	if (mode < 1 || mode >= DB9_MAX_PAD || !db9_modes[mode].n_buttons) {
+		printk(KERN_ERR "db9.c: Bad device type %d\n", mode);
+		return;
+	}
+
+	db9_mode = &db9_modes[mode];
+
+	if (db9_mode->bidirectional && !(pp->modes & PARPORT_MODE_TRISTATE)) {
+		printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
+		return;
+	}
+
+	memset(&db9_parport_cb, 0, sizeof(db9_parport_cb));
+	db9_parport_cb.flags = PARPORT_FLAG_EXCL;
+
+	pd = parport_register_dev_model(pp, "db9", &db9_parport_cb, port_idx);
+	if (!pd) {
+		printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
+		return;
+	}
+
+	db9 = kzalloc(sizeof(struct db9), GFP_KERNEL);
+	if (!db9)
+		goto err_unreg_pardev;
+
+	mutex_init(&db9->mutex);
+	db9->pd = pd;
+	db9->mode = mode;
+	db9->parportno = pp->number;
+	timer_setup(&db9->timer, db9_timer, 0);
+
+	for (i = 0; i < (min(db9_mode->n_pads, DB9_MAX_DEVICES)); i++) {
+
+		db9->dev[i] = input_dev = input_allocate_device();
+		if (!input_dev) {
+			printk(KERN_ERR "db9.c: Not enough memory for input device\n");
+			goto err_unreg_devs;
+		}
+
+		snprintf(db9->phys[i], sizeof(db9->phys[i]),
+			 "%s/input%d", db9->pd->port->name, i);
+
+		input_dev->name = db9_mode->name;
+		input_dev->phys = db9->phys[i];
+		input_dev->id.bustype = BUS_PARPORT;
+		input_dev->id.vendor = 0x0002;
+		input_dev->id.product = mode;
+		input_dev->id.version = 0x0100;
+
+		input_set_drvdata(input_dev, db9);
+
+		input_dev->open = db9_open;
+		input_dev->close = db9_close;
+
+		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+		for (j = 0; j < db9_mode->n_buttons; j++)
+			set_bit(db9_mode->buttons[j], input_dev->keybit);
+		for (j = 0; j < db9_mode->n_axis; j++) {
+			if (j < 2)
+				input_set_abs_params(input_dev, db9_abs[j], -1, 1, 0, 0);
+			else
+				input_set_abs_params(input_dev, db9_abs[j], 1, 255, 0, 0);
+		}
+
+		if (input_register_device(input_dev))
+			goto err_free_dev;
+	}
+
+	db9_base[port_idx] = db9;
+	return;
+
+ err_free_dev:
+	input_free_device(db9->dev[i]);
+ err_unreg_devs:
+	while (--i >= 0)
+		input_unregister_device(db9->dev[i]);
+	kfree(db9);
+ err_unreg_pardev:
+	parport_unregister_device(pd);
+}
+
+static void db9_detach(struct parport *port)
+{
+	int i;
+	struct db9 *db9;
+
+	for (i = 0; i < DB9_MAX_PORTS; i++) {
+		if (db9_base[i] && db9_base[i]->parportno == port->number)
+			break;
+	}
+
+	if (i == DB9_MAX_PORTS)
+		return;
+
+	db9 = db9_base[i];
+	db9_base[i] = NULL;
+
+	for (i = 0; i < min(db9_modes[db9->mode].n_pads, DB9_MAX_DEVICES); i++)
+		input_unregister_device(db9->dev[i]);
+	parport_unregister_device(db9->pd);
+	kfree(db9);
+}
+
+static struct parport_driver db9_parport_driver = {
+	.name = "db9",
+	.match_port = db9_attach,
+	.detach = db9_detach,
+	.devmodel = true,
+};
+
+static int __init db9_init(void)
+{
+	int i;
+	int have_dev = 0;
+
+	for (i = 0; i < DB9_MAX_PORTS; i++) {
+		if (db9_cfg[i].nargs == 0 || db9_cfg[i].args[DB9_ARG_PARPORT] < 0)
+			continue;
+
+		if (db9_cfg[i].nargs < 2) {
+			printk(KERN_ERR "db9.c: Device type must be specified.\n");
+			return -EINVAL;
+		}
+
+		have_dev = 1;
+	}
+
+	if (!have_dev)
+		return -ENODEV;
+
+	return parport_register_driver(&db9_parport_driver);
+}
+
+static void __exit db9_exit(void)
+{
+	parport_unregister_driver(&db9_parport_driver);
+}
+
+module_init(db9_init);
+module_exit(db9_exit);
diff --git a/drivers/input/joystick/fsia6b.c b/drivers/input/joystick/fsia6b.c
new file mode 100644
index 000000000..76ffdec5c
--- /dev/null
+++ b/drivers/input/joystick/fsia6b.c
@@ -0,0 +1,231 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * FS-iA6B iBus RC receiver driver
+ *
+ * This driver provides all 14 channels of the FlySky FS-ia6B RC receiver
+ * as analog values.
+ *
+ * Additionally, the channels can be converted to discrete switch values.
+ * By default, it is configured for the offical FS-i6 remote control.
+ * If you use a different hardware configuration, you can configure it
+ * using the `switch_config` parameter.
+ */
+
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/serio.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#define DRIVER_DESC		"FS-iA6B iBus RC receiver"
+
+MODULE_AUTHOR("Markus Koch <markus@notsyncing.net>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define IBUS_SERVO_COUNT	14
+
+static char *switch_config = "00000022320000";
+module_param(switch_config, charp, 0444);
+MODULE_PARM_DESC(switch_config,
+		 "Amount of switch positions per channel (14 characters, 0-3)");
+
+static int fsia6b_axes[IBUS_SERVO_COUNT] = {
+	ABS_X, ABS_Y,
+	ABS_Z, ABS_RX,
+	ABS_RY, ABS_RZ,
+	ABS_HAT0X, ABS_HAT0Y,
+	ABS_HAT1X, ABS_HAT1Y,
+	ABS_HAT2X, ABS_HAT2Y,
+	ABS_HAT3X, ABS_HAT3Y
+};
+
+enum ibus_state { SYNC, COLLECT, PROCESS };
+
+struct ibus_packet {
+	enum ibus_state state;
+
+	int offset;
+	u16 ibuf;
+	u16 channel[IBUS_SERVO_COUNT];
+};
+
+struct fsia6b {
+	struct input_dev *dev;
+	struct ibus_packet packet;
+
+	char phys[32];
+};
+
+static irqreturn_t fsia6b_serio_irq(struct serio *serio,
+				    unsigned char data, unsigned int flags)
+{
+	struct fsia6b *fsia6b = serio_get_drvdata(serio);
+	int i;
+	int sw_state;
+	int sw_id = BTN_0;
+
+	fsia6b->packet.ibuf = (data << 8) | ((fsia6b->packet.ibuf >> 8) & 0xFF);
+
+	switch (fsia6b->packet.state) {
+	case SYNC:
+		if (fsia6b->packet.ibuf == 0x4020)
+			fsia6b->packet.state = COLLECT;
+		break;
+
+	case COLLECT:
+		fsia6b->packet.state = PROCESS;
+		break;
+
+	case PROCESS:
+		fsia6b->packet.channel[fsia6b->packet.offset] =
+				fsia6b->packet.ibuf;
+		fsia6b->packet.offset++;
+
+		if (fsia6b->packet.offset == IBUS_SERVO_COUNT) {
+			fsia6b->packet.offset = 0;
+			fsia6b->packet.state = SYNC;
+			for (i = 0; i < IBUS_SERVO_COUNT; ++i) {
+				input_report_abs(fsia6b->dev, fsia6b_axes[i],
+						 fsia6b->packet.channel[i]);
+
+				sw_state = 0;
+				if (fsia6b->packet.channel[i] > 1900)
+					sw_state = 1;
+				else if (fsia6b->packet.channel[i] < 1100)
+					sw_state = 2;
+
+				switch (switch_config[i]) {
+				case '3':
+					input_report_key(fsia6b->dev,
+							 sw_id++,
+							 sw_state == 0);
+					fallthrough;
+				case '2':
+					input_report_key(fsia6b->dev,
+							 sw_id++,
+							 sw_state == 1);
+					fallthrough;
+				case '1':
+					input_report_key(fsia6b->dev,
+							 sw_id++,
+							 sw_state == 2);
+				}
+			}
+			input_sync(fsia6b->dev);
+		} else {
+			fsia6b->packet.state = COLLECT;
+		}
+		break;
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int fsia6b_serio_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct fsia6b *fsia6b;
+	struct input_dev *input_dev;
+	int err;
+	int i, j;
+	int sw_id = 0;
+
+	fsia6b = kzalloc(sizeof(*fsia6b), GFP_KERNEL);
+	if (!fsia6b)
+		return -ENOMEM;
+
+	fsia6b->packet.ibuf = 0;
+	fsia6b->packet.offset = 0;
+	fsia6b->packet.state = SYNC;
+
+	serio_set_drvdata(serio, fsia6b);
+
+	input_dev = input_allocate_device();
+	if (!input_dev) {
+		err = -ENOMEM;
+		goto fail1;
+	}
+	fsia6b->dev = input_dev;
+
+	snprintf(fsia6b->phys, sizeof(fsia6b->phys), "%s/input0", serio->phys);
+
+	input_dev->name = DRIVER_DESC;
+	input_dev->phys = fsia6b->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_FSIA6B;
+	input_dev->id.product = serio->id.id;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	for (i = 0; i < IBUS_SERVO_COUNT; i++)
+		input_set_abs_params(input_dev, fsia6b_axes[i],
+				     1000, 2000, 2, 2);
+
+	/* Register switch configuration */
+	for (i = 0; i < IBUS_SERVO_COUNT; i++) {
+		if (switch_config[i] < '0' || switch_config[i] > '3') {
+			dev_err(&fsia6b->dev->dev,
+				"Invalid switch configuration supplied for fsia6b.\n");
+			err = -EINVAL;
+			goto fail2;
+		}
+
+		for (j = '1'; j <= switch_config[i]; j++) {
+			input_set_capability(input_dev, EV_KEY, BTN_0 + sw_id);
+			sw_id++;
+		}
+	}
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(fsia6b->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+fail3:	serio_close(serio);
+fail2:	input_free_device(input_dev);
+fail1:	serio_set_drvdata(serio, NULL);
+	kfree(fsia6b);
+	return err;
+}
+
+static void fsia6b_serio_disconnect(struct serio *serio)
+{
+	struct fsia6b *fsia6b = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(fsia6b->dev);
+	kfree(fsia6b);
+}
+
+static const struct serio_device_id fsia6b_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_FSIA6B,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, fsia6b_serio_ids);
+
+static struct serio_driver fsia6b_serio_drv = {
+	.driver		= {
+		.name	= "fsia6b"
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= fsia6b_serio_ids,
+	.interrupt	= fsia6b_serio_irq,
+	.connect	= fsia6b_serio_connect,
+	.disconnect	= fsia6b_serio_disconnect
+};
+
+module_serio_driver(fsia6b_serio_drv)
diff --git a/drivers/input/joystick/gamecon.c b/drivers/input/joystick/gamecon.c
new file mode 100644
index 000000000..41d5dac05
--- /dev/null
+++ b/drivers/input/joystick/gamecon.c
@@ -0,0 +1,1051 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
+ *
+ *  Copyright (c) 1999-2004	Vojtech Pavlik <vojtech@suse.cz>
+ *  Copyright (c) 2004		Peter Nelson <rufus-kernel@hackish.org>
+ *
+ *  Based on the work of:
+ *	Andree Borrmann		John Dahlstrom
+ *	David Kuder		Nathan Hand
+ *	Raphael Assenat
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("NES, SNES, N64, MultiSystem, PSX gamepad driver");
+MODULE_LICENSE("GPL");
+
+#define GC_MAX_PORTS		3
+#define GC_MAX_DEVICES		5
+
+struct gc_config {
+	int args[GC_MAX_DEVICES + 1];
+	unsigned int nargs;
+};
+
+static struct gc_config gc_cfg[GC_MAX_PORTS];
+
+module_param_array_named(map, gc_cfg[0].args, int, &gc_cfg[0].nargs, 0);
+MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)");
+module_param_array_named(map2, gc_cfg[1].args, int, &gc_cfg[1].nargs, 0);
+MODULE_PARM_DESC(map2, "Describes second set of devices");
+module_param_array_named(map3, gc_cfg[2].args, int, &gc_cfg[2].nargs, 0);
+MODULE_PARM_DESC(map3, "Describes third set of devices");
+
+/* see also gs_psx_delay parameter in PSX support section */
+
+enum gc_type {
+	GC_NONE = 0,
+	GC_SNES,
+	GC_NES,
+	GC_NES4,
+	GC_MULTI,
+	GC_MULTI2,
+	GC_N64,
+	GC_PSX,
+	GC_DDR,
+	GC_SNESMOUSE,
+	GC_MAX
+};
+
+#define GC_REFRESH_TIME	HZ/100
+
+struct gc_pad {
+	struct input_dev *dev;
+	enum gc_type type;
+	char phys[32];
+};
+
+struct gc {
+	struct pardevice *pd;
+	struct gc_pad pads[GC_MAX_DEVICES];
+	struct timer_list timer;
+	int pad_count[GC_MAX];
+	int used;
+	int parportno;
+	struct mutex mutex;
+};
+
+struct gc_subdev {
+	unsigned int idx;
+};
+
+static struct gc *gc_base[3];
+
+static const int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
+
+static const char *gc_names[] = {
+	NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
+	"Multisystem 2-button joystick", "N64 controller", "PSX controller",
+	"PSX DDR controller", "SNES mouse"
+};
+
+/*
+ * N64 support.
+ */
+
+static const unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 };
+static const short gc_n64_btn[] = {
+	BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z,
+	BTN_TL, BTN_TR, BTN_TRIGGER, BTN_START
+};
+
+#define GC_N64_LENGTH		32		/* N64 bit length, not including stop bit */
+#define GC_N64_STOP_LENGTH	5		/* Length of encoded stop bit */
+#define GC_N64_CMD_00		0x11111111UL
+#define GC_N64_CMD_01		0xd1111111UL
+#define GC_N64_CMD_03		0xdd111111UL
+#define GC_N64_CMD_1b		0xdd1dd111UL
+#define GC_N64_CMD_c0		0x111111ddUL
+#define GC_N64_CMD_80		0x1111111dUL
+#define GC_N64_STOP_BIT		0x1d		/* Encoded stop bit */
+#define GC_N64_REQUEST_DATA	GC_N64_CMD_01	/* the request data command */
+#define GC_N64_DELAY		133		/* delay between transmit request, and response ready (us) */
+#define GC_N64_DWS		3		/* delay between write segments (required for sound playback because of ISA DMA) */
+						/* GC_N64_DWS > 24 is known to fail */
+#define GC_N64_POWER_W		0xe2		/* power during write (transmit request) */
+#define GC_N64_POWER_R		0xfd		/* power during read */
+#define GC_N64_OUT		0x1d		/* output bits to the 4 pads */
+						/* Reading the main axes of any N64 pad is known to fail if the corresponding bit */
+						/* in GC_N64_OUT is pulled low on the output port (by any routine) for more */
+						/* than 123 us */
+#define GC_N64_CLOCK		0x02		/* clock bits for read */
+
+/*
+ * Used for rumble code.
+ */
+
+/* Send encoded command */
+static void gc_n64_send_command(struct gc *gc, unsigned long cmd,
+				unsigned char target)
+{
+	struct parport *port = gc->pd->port;
+	int i;
+
+	for (i = 0; i < GC_N64_LENGTH; i++) {
+		unsigned char data = (cmd >> i) & 1 ? target : 0;
+		parport_write_data(port, GC_N64_POWER_W | data);
+		udelay(GC_N64_DWS);
+	}
+}
+
+/* Send stop bit */
+static void gc_n64_send_stop_bit(struct gc *gc, unsigned char target)
+{
+	struct parport *port = gc->pd->port;
+	int i;
+
+	for (i = 0; i < GC_N64_STOP_LENGTH; i++) {
+		unsigned char data = (GC_N64_STOP_BIT >> i) & 1 ? target : 0;
+		parport_write_data(port, GC_N64_POWER_W | data);
+		udelay(GC_N64_DWS);
+	}
+}
+
+/*
+ * gc_n64_read_packet() reads an N64 packet.
+ * Each pad uses one bit per byte. So all pads connected to this port
+ * are read in parallel.
+ */
+
+static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
+{
+	int i;
+	unsigned long flags;
+
+/*
+ * Request the pad to transmit data
+ */
+
+	local_irq_save(flags);
+	gc_n64_send_command(gc, GC_N64_REQUEST_DATA, GC_N64_OUT);
+	gc_n64_send_stop_bit(gc, GC_N64_OUT);
+	local_irq_restore(flags);
+
+/*
+ * Wait for the pad response to be loaded into the 33-bit register
+ * of the adapter.
+ */
+
+	udelay(GC_N64_DELAY);
+
+/*
+ * Grab data (ignoring the last bit, which is a stop bit)
+ */
+
+	for (i = 0; i < GC_N64_LENGTH; i++) {
+		parport_write_data(gc->pd->port, GC_N64_POWER_R);
+		udelay(2);
+		data[i] = parport_read_status(gc->pd->port);
+		parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK);
+	 }
+
+/*
+ * We must wait 200 ms here for the controller to reinitialize before
+ * the next read request. No worries as long as gc_read is polled less
+ * frequently than this.
+ */
+
+}
+
+static void gc_n64_process_packet(struct gc *gc)
+{
+	unsigned char data[GC_N64_LENGTH];
+	struct input_dev *dev;
+	int i, j, s;
+	signed char x, y;
+
+	gc_n64_read_packet(gc, data);
+
+	for (i = 0; i < GC_MAX_DEVICES; i++) {
+
+		if (gc->pads[i].type != GC_N64)
+			continue;
+
+		dev = gc->pads[i].dev;
+		s = gc_status_bit[i];
+
+		if (s & ~(data[8] | data[9])) {
+
+			x = y = 0;
+
+			for (j = 0; j < 8; j++) {
+				if (data[23 - j] & s)
+					x |= 1 << j;
+				if (data[31 - j] & s)
+					y |= 1 << j;
+			}
+
+			input_report_abs(dev, ABS_X,  x);
+			input_report_abs(dev, ABS_Y, -y);
+
+			input_report_abs(dev, ABS_HAT0X,
+					 !(s & data[6]) - !(s & data[7]));
+			input_report_abs(dev, ABS_HAT0Y,
+					 !(s & data[4]) - !(s & data[5]));
+
+			for (j = 0; j < 10; j++)
+				input_report_key(dev, gc_n64_btn[j],
+						 s & data[gc_n64_bytes[j]]);
+
+			input_sync(dev);
+		}
+	}
+}
+
+static int gc_n64_play_effect(struct input_dev *dev, void *data,
+			      struct ff_effect *effect)
+{
+	int i;
+	unsigned long flags;
+	struct gc *gc = input_get_drvdata(dev);
+	struct gc_subdev *sdev = data;
+	unsigned char target = 1 << sdev->idx; /* select desired pin */
+
+	if (effect->type == FF_RUMBLE) {
+		struct ff_rumble_effect *rumble = &effect->u.rumble;
+		unsigned int cmd =
+			rumble->strong_magnitude || rumble->weak_magnitude ?
+			GC_N64_CMD_01 : GC_N64_CMD_00;
+
+		local_irq_save(flags);
+
+		/* Init Rumble - 0x03, 0x80, 0x01, (34)0x80 */
+		gc_n64_send_command(gc, GC_N64_CMD_03, target);
+		gc_n64_send_command(gc, GC_N64_CMD_80, target);
+		gc_n64_send_command(gc, GC_N64_CMD_01, target);
+		for (i = 0; i < 32; i++)
+			gc_n64_send_command(gc, GC_N64_CMD_80, target);
+		gc_n64_send_stop_bit(gc, target);
+
+		udelay(GC_N64_DELAY);
+
+		/* Now start or stop it - 0x03, 0xc0, 0zx1b, (32)0x01/0x00 */
+		gc_n64_send_command(gc, GC_N64_CMD_03, target);
+		gc_n64_send_command(gc, GC_N64_CMD_c0, target);
+		gc_n64_send_command(gc, GC_N64_CMD_1b, target);
+		for (i = 0; i < 32; i++)
+			gc_n64_send_command(gc, cmd, target);
+		gc_n64_send_stop_bit(gc, target);
+
+		local_irq_restore(flags);
+
+	}
+
+	return 0;
+}
+
+static int gc_n64_init_ff(struct input_dev *dev, int i)
+{
+	struct gc_subdev *sdev;
+	int err;
+
+	sdev = kmalloc(sizeof(*sdev), GFP_KERNEL);
+	if (!sdev)
+		return -ENOMEM;
+
+	sdev->idx = i;
+
+	input_set_capability(dev, EV_FF, FF_RUMBLE);
+
+	err = input_ff_create_memless(dev, sdev, gc_n64_play_effect);
+	if (err) {
+		kfree(sdev);
+		return err;
+	}
+
+	return 0;
+}
+
+/*
+ * NES/SNES support.
+ */
+
+#define GC_NES_DELAY		6	/* Delay between bits - 6us */
+#define GC_NES_LENGTH		8	/* The NES pads use 8 bits of data */
+#define GC_SNES_LENGTH		12	/* The SNES true length is 16, but the
+					   last 4 bits are unused */
+#define GC_SNESMOUSE_LENGTH	32	/* The SNES mouse uses 32 bits, the first
+					   16 bits are equivalent to a gamepad */
+
+#define GC_NES_POWER	0xfc
+#define GC_NES_CLOCK	0x01
+#define GC_NES_LATCH	0x02
+
+static const unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 };
+static const unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 };
+static const short gc_snes_btn[] = {
+	BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR
+};
+
+/*
+ * gc_nes_read_packet() reads a NES/SNES packet.
+ * Each pad uses one bit per byte. So all pads connected to
+ * this port are read in parallel.
+ */
+
+static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data)
+{
+	int i;
+
+	parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH);
+	udelay(GC_NES_DELAY * 2);
+	parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
+
+	for (i = 0; i < length; i++) {
+		udelay(GC_NES_DELAY);
+		parport_write_data(gc->pd->port, GC_NES_POWER);
+		data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
+		udelay(GC_NES_DELAY);
+		parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
+	}
+}
+
+static void gc_nes_process_packet(struct gc *gc)
+{
+	unsigned char data[GC_SNESMOUSE_LENGTH];
+	struct gc_pad *pad;
+	struct input_dev *dev;
+	int i, j, s, len;
+	char x_rel, y_rel;
+
+	len = gc->pad_count[GC_SNESMOUSE] ? GC_SNESMOUSE_LENGTH :
+			(gc->pad_count[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH);
+
+	gc_nes_read_packet(gc, len, data);
+
+	for (i = 0; i < GC_MAX_DEVICES; i++) {
+
+		pad = &gc->pads[i];
+		dev = pad->dev;
+		s = gc_status_bit[i];
+
+		switch (pad->type) {
+
+		case GC_NES:
+
+			input_report_abs(dev, ABS_X, !(s & data[6]) - !(s & data[7]));
+			input_report_abs(dev, ABS_Y, !(s & data[4]) - !(s & data[5]));
+
+			for (j = 0; j < 4; j++)
+				input_report_key(dev, gc_snes_btn[j],
+						 s & data[gc_nes_bytes[j]]);
+			input_sync(dev);
+			break;
+
+		case GC_SNES:
+
+			input_report_abs(dev, ABS_X, !(s & data[6]) - !(s & data[7]));
+			input_report_abs(dev, ABS_Y, !(s & data[4]) - !(s & data[5]));
+
+			for (j = 0; j < 8; j++)
+				input_report_key(dev, gc_snes_btn[j],
+						 s & data[gc_snes_bytes[j]]);
+			input_sync(dev);
+			break;
+
+		case GC_SNESMOUSE:
+			/*
+			 * The 4 unused bits from SNES controllers appear
+			 * to be ID bits so use them to make sure we are
+			 * dealing with a mouse.
+			 * gamepad is connected. This is important since
+			 * my SNES gamepad sends 1's for bits 16-31, which
+			 * cause the mouse pointer to quickly move to the
+			 * upper left corner of the screen.
+			 */
+			if (!(s & data[12]) && !(s & data[13]) &&
+			    !(s & data[14]) && (s & data[15])) {
+				input_report_key(dev, BTN_LEFT, s & data[9]);
+				input_report_key(dev, BTN_RIGHT, s & data[8]);
+
+				x_rel = y_rel = 0;
+				for (j = 0; j < 7; j++) {
+					x_rel <<= 1;
+					if (data[25 + j] & s)
+						x_rel |= 1;
+
+					y_rel <<= 1;
+					if (data[17 + j] & s)
+						y_rel |= 1;
+				}
+
+				if (x_rel) {
+					if (data[24] & s)
+						x_rel = -x_rel;
+					input_report_rel(dev, REL_X, x_rel);
+				}
+
+				if (y_rel) {
+					if (data[16] & s)
+						y_rel = -y_rel;
+					input_report_rel(dev, REL_Y, y_rel);
+				}
+
+				input_sync(dev);
+			}
+			break;
+
+		default:
+			break;
+		}
+	}
+}
+
+/*
+ * Multisystem joystick support
+ */
+
+#define GC_MULTI_LENGTH		5	/* Multi system joystick packet length is 5 */
+#define GC_MULTI2_LENGTH	6	/* One more bit for one more button */
+
+/*
+ * gc_multi_read_packet() reads a Multisystem joystick packet.
+ */
+
+static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
+{
+	int i;
+
+	for (i = 0; i < length; i++) {
+		parport_write_data(gc->pd->port, ~(1 << i));
+		data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
+	}
+}
+
+static void gc_multi_process_packet(struct gc *gc)
+{
+	unsigned char data[GC_MULTI2_LENGTH];
+	int data_len = gc->pad_count[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH;
+	struct gc_pad *pad;
+	struct input_dev *dev;
+	int i, s;
+
+	gc_multi_read_packet(gc, data_len, data);
+
+	for (i = 0; i < GC_MAX_DEVICES; i++) {
+		pad = &gc->pads[i];
+		dev = pad->dev;
+		s = gc_status_bit[i];
+
+		switch (pad->type) {
+		case GC_MULTI2:
+			input_report_key(dev, BTN_THUMB, s & data[5]);
+			fallthrough;
+
+		case GC_MULTI:
+			input_report_abs(dev, ABS_X,
+					 !(s & data[2]) - !(s & data[3]));
+			input_report_abs(dev, ABS_Y,
+					 !(s & data[0]) - !(s & data[1]));
+			input_report_key(dev, BTN_TRIGGER, s & data[4]);
+			input_sync(dev);
+			break;
+
+		default:
+			break;
+		}
+	}
+}
+
+/*
+ * PSX support
+ *
+ * See documentation at:
+ *	http://www.geocities.co.jp/Playtown/2004/psx/ps_eng.txt	
+ *	http://www.gamesx.com/controldata/psxcont/psxcont.htm
+ *
+ */
+
+#define GC_PSX_DELAY	25		/* 25 usec */
+#define GC_PSX_LENGTH	8		/* talk to the controller in bits */
+#define GC_PSX_BYTES	6		/* the maximum number of bytes to read off the controller */
+
+#define GC_PSX_MOUSE	1		/* Mouse */
+#define GC_PSX_NEGCON	2		/* NegCon */
+#define GC_PSX_NORMAL	4		/* Digital / Analog or Rumble in Digital mode  */
+#define GC_PSX_ANALOG	5		/* Analog in Analog mode / Rumble in Green mode */
+#define GC_PSX_RUMBLE	7		/* Rumble in Red mode */
+
+#define GC_PSX_CLOCK	0x04		/* Pin 4 */
+#define GC_PSX_COMMAND	0x01		/* Pin 2 */
+#define GC_PSX_POWER	0xf8		/* Pins 5-9 */
+#define GC_PSX_SELECT	0x02		/* Pin 3 */
+
+#define GC_PSX_ID(x)	((x) >> 4)	/* High nibble is device type */
+#define GC_PSX_LEN(x)	(((x) & 0xf) << 1)	/* Low nibble is length in bytes/2 */
+
+static int gc_psx_delay = GC_PSX_DELAY;
+module_param_named(psx_delay, gc_psx_delay, uint, 0);
+MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)");
+
+static const short gc_psx_abs[] = {
+	ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y
+};
+static const short gc_psx_btn[] = {
+	BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
+	BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR
+};
+static const short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
+
+/*
+ * gc_psx_command() writes 8bit command and reads 8bit data from
+ * the psx pad.
+ */
+
+static void gc_psx_command(struct gc *gc, int b, unsigned char *data)
+{
+	struct parport *port = gc->pd->port;
+	int i, j, cmd, read;
+
+	memset(data, 0, GC_MAX_DEVICES);
+
+	for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) {
+		cmd = (b & 1) ? GC_PSX_COMMAND : 0;
+		parport_write_data(port, cmd | GC_PSX_POWER);
+		udelay(gc_psx_delay);
+
+		read = parport_read_status(port) ^ 0x80;
+
+		for (j = 0; j < GC_MAX_DEVICES; j++) {
+			struct gc_pad *pad = &gc->pads[j];
+
+			if (pad->type == GC_PSX || pad->type == GC_DDR)
+				data[j] |= (read & gc_status_bit[j]) ? (1 << i) : 0;
+		}
+
+		parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
+		udelay(gc_psx_delay);
+	}
+}
+
+/*
+ * gc_psx_read_packet() reads a whole psx packet and returns
+ * device identifier code.
+ */
+
+static void gc_psx_read_packet(struct gc *gc,
+			       unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES],
+			       unsigned char id[GC_MAX_DEVICES])
+{
+	int i, j, max_len = 0;
+	unsigned long flags;
+	unsigned char data2[GC_MAX_DEVICES];
+
+	/* Select pad */
+	parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
+	udelay(gc_psx_delay);
+	/* Deselect, begin command */
+	parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER);
+	udelay(gc_psx_delay);
+
+	local_irq_save(flags);
+
+	gc_psx_command(gc, 0x01, data2);	/* Access pad */
+	gc_psx_command(gc, 0x42, id);		/* Get device ids */
+	gc_psx_command(gc, 0, data2);		/* Dump status */
+
+	/* Find the longest pad */
+	for (i = 0; i < GC_MAX_DEVICES; i++) {
+		struct gc_pad *pad = &gc->pads[i];
+
+		if ((pad->type == GC_PSX || pad->type == GC_DDR) &&
+		    GC_PSX_LEN(id[i]) > max_len &&
+		    GC_PSX_LEN(id[i]) <= GC_PSX_BYTES) {
+			max_len = GC_PSX_LEN(id[i]);
+		}
+	}
+
+	/* Read in all the data */
+	for (i = 0; i < max_len; i++) {
+		gc_psx_command(gc, 0, data2);
+		for (j = 0; j < GC_MAX_DEVICES; j++)
+			data[j][i] = data2[j];
+	}
+
+	local_irq_restore(flags);
+
+	parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
+
+	/* Set id's to the real value */
+	for (i = 0; i < GC_MAX_DEVICES; i++)
+		id[i] = GC_PSX_ID(id[i]);
+}
+
+static void gc_psx_report_one(struct gc_pad *pad, unsigned char psx_type,
+			      unsigned char *data)
+{
+	struct input_dev *dev = pad->dev;
+	int i;
+
+	switch (psx_type) {
+
+	case GC_PSX_RUMBLE:
+
+		input_report_key(dev, BTN_THUMBL, ~data[0] & 0x04);
+		input_report_key(dev, BTN_THUMBR, ~data[0] & 0x02);
+		fallthrough;
+
+	case GC_PSX_NEGCON:
+	case GC_PSX_ANALOG:
+
+		if (pad->type == GC_DDR) {
+			for (i = 0; i < 4; i++)
+				input_report_key(dev, gc_psx_ddr_btn[i],
+						 ~data[0] & (0x10 << i));
+		} else {
+			for (i = 0; i < 4; i++)
+				input_report_abs(dev, gc_psx_abs[i + 2],
+						 data[i + 2]);
+
+			input_report_abs(dev, ABS_X,
+				!!(data[0] & 0x80) * 128 + !(data[0] & 0x20) * 127);
+			input_report_abs(dev, ABS_Y,
+				!!(data[0] & 0x10) * 128 + !(data[0] & 0x40) * 127);
+		}
+
+		for (i = 0; i < 8; i++)
+			input_report_key(dev, gc_psx_btn[i], ~data[1] & (1 << i));
+
+		input_report_key(dev, BTN_START,  ~data[0] & 0x08);
+		input_report_key(dev, BTN_SELECT, ~data[0] & 0x01);
+
+		input_sync(dev);
+
+		break;
+
+	case GC_PSX_NORMAL:
+
+		if (pad->type == GC_DDR) {
+			for (i = 0; i < 4; i++)
+				input_report_key(dev, gc_psx_ddr_btn[i],
+						 ~data[0] & (0x10 << i));
+		} else {
+			input_report_abs(dev, ABS_X,
+				!!(data[0] & 0x80) * 128 + !(data[0] & 0x20) * 127);
+			input_report_abs(dev, ABS_Y,
+				!!(data[0] & 0x10) * 128 + !(data[0] & 0x40) * 127);
+
+			/*
+			 * For some reason if the extra axes are left unset
+			 * they drift.
+			 * for (i = 0; i < 4; i++)
+				input_report_abs(dev, gc_psx_abs[i + 2], 128);
+			 * This needs to be debugged properly,
+			 * maybe fuzz processing needs to be done
+			 * in input_sync()
+			 *				 --vojtech
+			 */
+		}
+
+		for (i = 0; i < 8; i++)
+			input_report_key(dev, gc_psx_btn[i], ~data[1] & (1 << i));
+
+		input_report_key(dev, BTN_START,  ~data[0] & 0x08);
+		input_report_key(dev, BTN_SELECT, ~data[0] & 0x01);
+
+		input_sync(dev);
+
+		break;
+
+	default: /* not a pad, ignore */
+		break;
+	}
+}
+
+static void gc_psx_process_packet(struct gc *gc)
+{
+	unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES];
+	unsigned char id[GC_MAX_DEVICES];
+	struct gc_pad *pad;
+	int i;
+
+	gc_psx_read_packet(gc, data, id);
+
+	for (i = 0; i < GC_MAX_DEVICES; i++) {
+		pad = &gc->pads[i];
+		if (pad->type == GC_PSX || pad->type == GC_DDR)
+			gc_psx_report_one(pad, id[i], data[i]);
+	}
+}
+
+/*
+ * gc_timer() initiates reads of console pads data.
+ */
+
+static void gc_timer(struct timer_list *t)
+{
+	struct gc *gc = from_timer(gc, t, timer);
+
+/*
+ * N64 pads - must be read first, any read confuses them for 200 us
+ */
+
+	if (gc->pad_count[GC_N64])
+		gc_n64_process_packet(gc);
+
+/*
+ * NES and SNES pads or mouse
+ */
+
+	if (gc->pad_count[GC_NES] ||
+	    gc->pad_count[GC_SNES] ||
+	    gc->pad_count[GC_SNESMOUSE]) {
+		gc_nes_process_packet(gc);
+	}
+
+/*
+ * Multi and Multi2 joysticks
+ */
+
+	if (gc->pad_count[GC_MULTI] || gc->pad_count[GC_MULTI2])
+		gc_multi_process_packet(gc);
+
+/*
+ * PSX controllers
+ */
+
+	if (gc->pad_count[GC_PSX] || gc->pad_count[GC_DDR])
+		gc_psx_process_packet(gc);
+
+	mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
+}
+
+static int gc_open(struct input_dev *dev)
+{
+	struct gc *gc = input_get_drvdata(dev);
+	int err;
+
+	err = mutex_lock_interruptible(&gc->mutex);
+	if (err)
+		return err;
+
+	if (!gc->used++) {
+		parport_claim(gc->pd);
+		parport_write_control(gc->pd->port, 0x04);
+		mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
+	}
+
+	mutex_unlock(&gc->mutex);
+	return 0;
+}
+
+static void gc_close(struct input_dev *dev)
+{
+	struct gc *gc = input_get_drvdata(dev);
+
+	mutex_lock(&gc->mutex);
+	if (!--gc->used) {
+		del_timer_sync(&gc->timer);
+		parport_write_control(gc->pd->port, 0x00);
+		parport_release(gc->pd);
+	}
+	mutex_unlock(&gc->mutex);
+}
+
+static int gc_setup_pad(struct gc *gc, int idx, int pad_type)
+{
+	struct gc_pad *pad = &gc->pads[idx];
+	struct input_dev *input_dev;
+	int i;
+	int err;
+
+	if (pad_type < 1 || pad_type >= GC_MAX) {
+		pr_err("Pad type %d unknown\n", pad_type);
+		return -EINVAL;
+	}
+
+	pad->dev = input_dev = input_allocate_device();
+	if (!input_dev) {
+		pr_err("Not enough memory for input device\n");
+		return -ENOMEM;
+	}
+
+	pad->type = pad_type;
+
+	snprintf(pad->phys, sizeof(pad->phys),
+		 "%s/input%d", gc->pd->port->name, idx);
+
+	input_dev->name = gc_names[pad_type];
+	input_dev->phys = pad->phys;
+	input_dev->id.bustype = BUS_PARPORT;
+	input_dev->id.vendor = 0x0001;
+	input_dev->id.product = pad_type;
+	input_dev->id.version = 0x0100;
+
+	input_set_drvdata(input_dev, gc);
+
+	input_dev->open = gc_open;
+	input_dev->close = gc_close;
+
+	if (pad_type != GC_SNESMOUSE) {
+		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+		for (i = 0; i < 2; i++)
+			input_set_abs_params(input_dev, ABS_X + i, -1, 1, 0, 0);
+	} else
+		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+
+	gc->pad_count[pad_type]++;
+
+	switch (pad_type) {
+
+	case GC_N64:
+		for (i = 0; i < 10; i++)
+			input_set_capability(input_dev, EV_KEY, gc_n64_btn[i]);
+
+		for (i = 0; i < 2; i++) {
+			input_set_abs_params(input_dev, ABS_X + i, -127, 126, 0, 2);
+			input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
+		}
+
+		err = gc_n64_init_ff(input_dev, idx);
+		if (err) {
+			pr_warn("Failed to initiate rumble for N64 device %d\n",
+				idx);
+			goto err_free_dev;
+		}
+
+		break;
+
+	case GC_SNESMOUSE:
+		input_set_capability(input_dev, EV_KEY, BTN_LEFT);
+		input_set_capability(input_dev, EV_KEY, BTN_RIGHT);
+		input_set_capability(input_dev, EV_REL, REL_X);
+		input_set_capability(input_dev, EV_REL, REL_Y);
+		break;
+
+	case GC_SNES:
+		for (i = 4; i < 8; i++)
+			input_set_capability(input_dev, EV_KEY, gc_snes_btn[i]);
+		fallthrough;
+
+	case GC_NES:
+		for (i = 0; i < 4; i++)
+			input_set_capability(input_dev, EV_KEY, gc_snes_btn[i]);
+		break;
+
+	case GC_MULTI2:
+		input_set_capability(input_dev, EV_KEY, BTN_THUMB);
+		fallthrough;
+
+	case GC_MULTI:
+		input_set_capability(input_dev, EV_KEY, BTN_TRIGGER);
+		break;
+
+	case GC_PSX:
+		for (i = 0; i < 6; i++)
+			input_set_abs_params(input_dev,
+					     gc_psx_abs[i], 4, 252, 0, 2);
+		for (i = 0; i < 12; i++)
+			input_set_capability(input_dev, EV_KEY, gc_psx_btn[i]);
+		break;
+
+		break;
+
+	case GC_DDR:
+		for (i = 0; i < 4; i++)
+			input_set_capability(input_dev, EV_KEY,
+					     gc_psx_ddr_btn[i]);
+		for (i = 0; i < 12; i++)
+			input_set_capability(input_dev, EV_KEY, gc_psx_btn[i]);
+
+		break;
+	}
+
+	err = input_register_device(pad->dev);
+	if (err)
+		goto err_free_dev;
+
+	return 0;
+
+err_free_dev:
+	input_free_device(pad->dev);
+	pad->dev = NULL;
+	return err;
+}
+
+static void gc_attach(struct parport *pp)
+{
+	struct gc *gc;
+	struct pardevice *pd;
+	int i, port_idx;
+	int count = 0;
+	int *pads, n_pads;
+	struct pardev_cb gc_parport_cb;
+
+	for (port_idx = 0; port_idx < GC_MAX_PORTS; port_idx++) {
+		if (gc_cfg[port_idx].nargs == 0 || gc_cfg[port_idx].args[0] < 0)
+			continue;
+
+		if (gc_cfg[port_idx].args[0] == pp->number)
+			break;
+	}
+
+	if (port_idx == GC_MAX_PORTS) {
+		pr_debug("Not using parport%d.\n", pp->number);
+		return;
+	}
+	pads = gc_cfg[port_idx].args + 1;
+	n_pads = gc_cfg[port_idx].nargs - 1;
+
+	memset(&gc_parport_cb, 0, sizeof(gc_parport_cb));
+	gc_parport_cb.flags = PARPORT_FLAG_EXCL;
+
+	pd = parport_register_dev_model(pp, "gamecon", &gc_parport_cb,
+					port_idx);
+	if (!pd) {
+		pr_err("parport busy already - lp.o loaded?\n");
+		return;
+	}
+
+	gc = kzalloc(sizeof(struct gc), GFP_KERNEL);
+	if (!gc) {
+		pr_err("Not enough memory\n");
+		goto err_unreg_pardev;
+	}
+
+	mutex_init(&gc->mutex);
+	gc->pd = pd;
+	gc->parportno = pp->number;
+	timer_setup(&gc->timer, gc_timer, 0);
+
+	for (i = 0; i < n_pads && i < GC_MAX_DEVICES; i++) {
+		if (!pads[i])
+			continue;
+
+		if (gc_setup_pad(gc, i, pads[i]))
+			goto err_unreg_devs;
+
+		count++;
+	}
+
+	if (count == 0) {
+		pr_err("No valid devices specified\n");
+		goto err_free_gc;
+	}
+
+	gc_base[port_idx] = gc;
+	return;
+
+ err_unreg_devs:
+	while (--i >= 0)
+		if (gc->pads[i].dev)
+			input_unregister_device(gc->pads[i].dev);
+ err_free_gc:
+	kfree(gc);
+ err_unreg_pardev:
+	parport_unregister_device(pd);
+}
+
+static void gc_detach(struct parport *port)
+{
+	int i;
+	struct gc *gc;
+
+	for (i = 0; i < GC_MAX_PORTS; i++) {
+		if (gc_base[i] && gc_base[i]->parportno == port->number)
+			break;
+	}
+
+	if (i == GC_MAX_PORTS)
+		return;
+
+	gc = gc_base[i];
+	gc_base[i] = NULL;
+
+	for (i = 0; i < GC_MAX_DEVICES; i++)
+		if (gc->pads[i].dev)
+			input_unregister_device(gc->pads[i].dev);
+	parport_unregister_device(gc->pd);
+	kfree(gc);
+}
+
+static struct parport_driver gc_parport_driver = {
+	.name = "gamecon",
+	.match_port = gc_attach,
+	.detach = gc_detach,
+	.devmodel = true,
+};
+
+static int __init gc_init(void)
+{
+	int i;
+	int have_dev = 0;
+
+	for (i = 0; i < GC_MAX_PORTS; i++) {
+		if (gc_cfg[i].nargs == 0 || gc_cfg[i].args[0] < 0)
+			continue;
+
+		if (gc_cfg[i].nargs < 2) {
+			pr_err("at least one device must be specified\n");
+			return -EINVAL;
+		}
+
+		have_dev = 1;
+	}
+
+	if (!have_dev)
+		return -ENODEV;
+
+	return parport_register_driver(&gc_parport_driver);
+}
+
+static void __exit gc_exit(void)
+{
+	parport_unregister_driver(&gc_parport_driver);
+}
+
+module_init(gc_init);
+module_exit(gc_exit);
diff --git a/drivers/input/joystick/gf2k.c b/drivers/input/joystick/gf2k.c
new file mode 100644
index 000000000..abefbd148
--- /dev/null
+++ b/drivers/input/joystick/gf2k.c
@@ -0,0 +1,356 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * Genius Flight 2000 joystick driver for Linux
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/gameport.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"Genius Flight 2000 joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define GF2K_START		400	/* The time we wait for the first bit [400 us] */
+#define GF2K_STROBE		40	/* The time we wait for the first bit [40 us] */
+#define GF2K_TIMEOUT		4	/* Wait for everything to settle [4 ms] */
+#define GF2K_LENGTH		80	/* Max number of triplets in a packet */
+
+/*
+ * Genius joystick ids ...
+ */
+
+#define GF2K_ID_G09		1
+#define GF2K_ID_F30D		2
+#define GF2K_ID_F30		3
+#define GF2K_ID_F31D		4
+#define GF2K_ID_F305		5
+#define GF2K_ID_F23P		6
+#define GF2K_ID_F31		7
+#define GF2K_ID_MAX		7
+
+static char gf2k_length[] = { 40, 40, 40, 40, 40, 40, 40, 40 };
+static char gf2k_hat_to_axis[][2] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+static char *gf2k_names[] = {"", "Genius G-09D", "Genius F-30D", "Genius F-30", "Genius MaxFighter F-31D",
+				"Genius F-30-5", "Genius Flight2000 F-23", "Genius F-31"};
+static unsigned char gf2k_hats[] = { 0, 2, 0, 0, 2, 0, 2, 0 };
+static unsigned char gf2k_axes[] = { 0, 2, 0, 0, 4, 0, 4, 0 };
+static unsigned char gf2k_joys[] = { 0, 0, 0, 0,10, 0, 8, 0 };
+static unsigned char gf2k_pads[] = { 0, 6, 0, 0, 0, 0, 0, 0 };
+static unsigned char gf2k_lens[] = { 0,18, 0, 0,18, 0,18, 0 };
+
+static unsigned char gf2k_abs[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_GAS, ABS_BRAKE };
+static short gf2k_btn_joy[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4 };
+static short gf2k_btn_pad[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_START, BTN_SELECT };
+
+
+static short gf2k_seq_reset[] = { 240, 340, 0 };
+static short gf2k_seq_digital[] = { 590, 320, 860, 0 };
+
+struct gf2k {
+	struct gameport *gameport;
+	struct input_dev *dev;
+	int reads;
+	int bads;
+	unsigned char id;
+	unsigned char length;
+	char phys[32];
+};
+
+/*
+ * gf2k_read_packet() reads a Genius Flight2000 packet.
+ */
+
+static int gf2k_read_packet(struct gameport *gameport, int length, char *data)
+{
+	unsigned char u, v;
+	int i;
+	unsigned int t, p;
+	unsigned long flags;
+
+	t = gameport_time(gameport, GF2K_START);
+	p = gameport_time(gameport, GF2K_STROBE);
+
+	i = 0;
+
+	local_irq_save(flags);
+
+	gameport_trigger(gameport);
+	v = gameport_read(gameport);
+
+	while (t > 0 && i < length) {
+		t--; u = v;
+		v = gameport_read(gameport);
+		if (v & ~u & 0x10) {
+			data[i++] = v >> 5;
+			t = p;
+		}
+	}
+
+	local_irq_restore(flags);
+
+	return i;
+}
+
+/*
+ * gf2k_trigger_seq() initializes a Genius Flight2000 joystick
+ * into digital mode.
+ */
+
+static void gf2k_trigger_seq(struct gameport *gameport, short *seq)
+{
+
+	unsigned long flags;
+	int i, t;
+
+        local_irq_save(flags);
+
+	i = 0;
+        do {
+		gameport_trigger(gameport);
+		t = gameport_time(gameport, GF2K_TIMEOUT * 1000);
+		while ((gameport_read(gameport) & 1) && t) t--;
+                udelay(seq[i]);
+        } while (seq[++i]);
+
+	gameport_trigger(gameport);
+
+	local_irq_restore(flags);
+}
+
+/*
+ * js_sw_get_bits() composes bits from the triplet buffer into a __u64.
+ * Parameter 'pos' is bit number inside packet where to start at, 'num' is number
+ * of bits to be read, 'shift' is offset in the resulting __u64 to start at, bits
+ * is number of bits per triplet.
+ */
+
+#define GB(p,n,s)	gf2k_get_bits(data, p, n, s)
+
+static int gf2k_get_bits(unsigned char *buf, int pos, int num, int shift)
+{
+	__u64 data = 0;
+	int i;
+
+	for (i = 0; i < num / 3 + 2; i++)
+		data |= buf[pos / 3 + i] << (i * 3);
+	data >>= pos % 3;
+	data &= (1 << num) - 1;
+	data <<= shift;
+
+	return data;
+}
+
+static void gf2k_read(struct gf2k *gf2k, unsigned char *data)
+{
+	struct input_dev *dev = gf2k->dev;
+	int i, t;
+
+	for (i = 0; i < 4 && i < gf2k_axes[gf2k->id]; i++)
+		input_report_abs(dev, gf2k_abs[i], GB(i<<3,8,0) | GB(i+46,1,8) | GB(i+50,1,9));
+
+	for (i = 0; i < 2 && i < gf2k_axes[gf2k->id] - 4; i++)
+		input_report_abs(dev, gf2k_abs[i], GB(i*9+60,8,0) | GB(i+54,1,9));
+
+	t = GB(40,4,0);
+
+	for (i = 0; i < gf2k_hats[gf2k->id]; i++)
+		input_report_abs(dev, ABS_HAT0X + i, gf2k_hat_to_axis[t][i]);
+
+	t = GB(44,2,0) | GB(32,8,2) | GB(78,2,10);
+
+	for (i = 0; i < gf2k_joys[gf2k->id]; i++)
+		input_report_key(dev, gf2k_btn_joy[i], (t >> i) & 1);
+
+	for (i = 0; i < gf2k_pads[gf2k->id]; i++)
+		input_report_key(dev, gf2k_btn_pad[i], (t >> i) & 1);
+
+	input_sync(dev);
+}
+
+/*
+ * gf2k_poll() reads and analyzes Genius joystick data.
+ */
+
+static void gf2k_poll(struct gameport *gameport)
+{
+	struct gf2k *gf2k = gameport_get_drvdata(gameport);
+	unsigned char data[GF2K_LENGTH];
+
+	gf2k->reads++;
+
+	if (gf2k_read_packet(gf2k->gameport, gf2k_length[gf2k->id], data) < gf2k_length[gf2k->id])
+		gf2k->bads++;
+	else
+		gf2k_read(gf2k, data);
+}
+
+static int gf2k_open(struct input_dev *dev)
+{
+	struct gf2k *gf2k = input_get_drvdata(dev);
+
+	gameport_start_polling(gf2k->gameport);
+	return 0;
+}
+
+static void gf2k_close(struct input_dev *dev)
+{
+	struct gf2k *gf2k = input_get_drvdata(dev);
+
+	gameport_stop_polling(gf2k->gameport);
+}
+
+/*
+ * gf2k_connect() probes for Genius id joysticks.
+ */
+
+static int gf2k_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct gf2k *gf2k;
+	struct input_dev *input_dev;
+	unsigned char data[GF2K_LENGTH];
+	int i, err;
+
+	gf2k = kzalloc(sizeof(struct gf2k), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!gf2k || !input_dev) {
+		err = -ENOMEM;
+		goto fail1;
+	}
+
+	gf2k->gameport = gameport;
+	gf2k->dev = input_dev;
+
+	gameport_set_drvdata(gameport, gf2k);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	gf2k_trigger_seq(gameport, gf2k_seq_reset);
+
+	msleep(GF2K_TIMEOUT);
+
+	gf2k_trigger_seq(gameport, gf2k_seq_digital);
+
+	msleep(GF2K_TIMEOUT);
+
+	if (gf2k_read_packet(gameport, GF2K_LENGTH, data) < 12) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	if (!(gf2k->id = GB(7,2,0) | GB(3,3,2) | GB(0,3,5))) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+#ifdef RESET_WORKS
+	if ((gf2k->id != (GB(19,2,0) | GB(15,3,2) | GB(12,3,5))) &&
+	    (gf2k->id != (GB(31,2,0) | GB(27,3,2) | GB(24,3,5)))) {
+		err = -ENODEV;
+		goto fail2;
+	}
+#else
+	gf2k->id = 6;
+#endif
+
+	if (gf2k->id > GF2K_ID_MAX || !gf2k_axes[gf2k->id]) {
+		printk(KERN_WARNING "gf2k.c: Not yet supported joystick on %s. [id: %d type:%s]\n",
+			gameport->phys, gf2k->id, gf2k->id > GF2K_ID_MAX ? "Unknown" : gf2k_names[gf2k->id]);
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	gameport_set_poll_handler(gameport, gf2k_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	snprintf(gf2k->phys, sizeof(gf2k->phys), "%s/input0", gameport->phys);
+
+	gf2k->length = gf2k_lens[gf2k->id];
+
+	input_dev->name = gf2k_names[gf2k->id];
+	input_dev->phys = gf2k->phys;
+	input_dev->id.bustype = BUS_GAMEPORT;
+	input_dev->id.vendor = GAMEPORT_ID_VENDOR_GENIUS;
+	input_dev->id.product = gf2k->id;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &gameport->dev;
+
+	input_set_drvdata(input_dev, gf2k);
+
+	input_dev->open = gf2k_open;
+	input_dev->close = gf2k_close;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	for (i = 0; i < gf2k_axes[gf2k->id]; i++)
+		set_bit(gf2k_abs[i], input_dev->absbit);
+
+	for (i = 0; i < gf2k_hats[gf2k->id]; i++)
+		input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
+
+	for (i = 0; i < gf2k_joys[gf2k->id]; i++)
+		set_bit(gf2k_btn_joy[i], input_dev->keybit);
+
+	for (i = 0; i < gf2k_pads[gf2k->id]; i++)
+		set_bit(gf2k_btn_pad[i], input_dev->keybit);
+
+	gf2k_read_packet(gameport, gf2k->length, data);
+	gf2k_read(gf2k, data);
+
+	for (i = 0; i < gf2k_axes[gf2k->id]; i++) {
+		int max = i < 2 ?
+			input_abs_get_val(input_dev, gf2k_abs[i]) * 2 :
+			input_abs_get_val(input_dev, gf2k_abs[0]) +
+				input_abs_get_val(input_dev, gf2k_abs[1]);
+		int flat = i < 2 ? 24 : 0;
+
+		input_set_abs_params(input_dev, gf2k_abs[i],
+				     32, max - 32, 8, flat);
+	}
+
+	err = input_register_device(gf2k->dev);
+	if (err)
+		goto fail2;
+
+	return 0;
+
+ fail2:	gameport_close(gameport);
+ fail1:	gameport_set_drvdata(gameport, NULL);
+	input_free_device(input_dev);
+	kfree(gf2k);
+	return err;
+}
+
+static void gf2k_disconnect(struct gameport *gameport)
+{
+	struct gf2k *gf2k = gameport_get_drvdata(gameport);
+
+	input_unregister_device(gf2k->dev);
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	kfree(gf2k);
+}
+
+static struct gameport_driver gf2k_drv = {
+	.driver		= {
+		.name	= "gf2k",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= gf2k_connect,
+	.disconnect	= gf2k_disconnect,
+};
+
+module_gameport_driver(gf2k_drv);
diff --git a/drivers/input/joystick/grip.c b/drivers/input/joystick/grip.c
new file mode 100644
index 000000000..0e86b269a
--- /dev/null
+++ b/drivers/input/joystick/grip.c
@@ -0,0 +1,407 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * Gravis/Kensington GrIP protocol joystick and gamepad driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"Gravis GrIP protocol joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define GRIP_MODE_GPP		1
+#define GRIP_MODE_BD		2
+#define GRIP_MODE_XT		3
+#define GRIP_MODE_DC		4
+
+#define GRIP_LENGTH_GPP		24
+#define GRIP_STROBE_GPP		200	/* 200 us */
+#define GRIP_LENGTH_XT		4
+#define GRIP_STROBE_XT		64	/* 64 us */
+#define GRIP_MAX_CHUNKS_XT	10
+#define GRIP_MAX_BITS_XT	30
+
+struct grip {
+	struct gameport *gameport;
+	struct input_dev *dev[2];
+	unsigned char mode[2];
+	int reads;
+	int bads;
+	char phys[2][32];
+};
+
+static int grip_btn_gpp[] = { BTN_START, BTN_SELECT, BTN_TR2, BTN_Y, 0, BTN_TL2, BTN_A, BTN_B, BTN_X, 0, BTN_TL, BTN_TR, -1 };
+static int grip_btn_bd[] = { BTN_THUMB, BTN_THUMB2, BTN_TRIGGER, BTN_TOP, BTN_BASE, -1 };
+static int grip_btn_xt[] = { BTN_TRIGGER, BTN_THUMB, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_SELECT, BTN_START, BTN_MODE, -1 };
+static int grip_btn_dc[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, -1 };
+
+static int grip_abs_gpp[] = { ABS_X, ABS_Y, -1 };
+static int grip_abs_bd[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
+static int grip_abs_xt[] = { ABS_X, ABS_Y, ABS_BRAKE, ABS_GAS, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, -1 };
+static int grip_abs_dc[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static char *grip_name[] = { NULL, "Gravis GamePad Pro", "Gravis Blackhawk Digital",
+				"Gravis Xterminator Digital", "Gravis Xterminator DualControl" };
+static int *grip_abs[] = { NULL, grip_abs_gpp, grip_abs_bd, grip_abs_xt, grip_abs_dc };
+static int *grip_btn[] = { NULL, grip_btn_gpp, grip_btn_bd, grip_btn_xt, grip_btn_dc };
+static char grip_anx[] = { 0, 0, 3, 5, 5 };
+static char grip_cen[] = { 0, 0, 2, 2, 4 };
+
+/*
+ * grip_gpp_read_packet() reads a Gravis GamePad Pro packet.
+ */
+
+static int grip_gpp_read_packet(struct gameport *gameport, int shift, unsigned int *data)
+{
+	unsigned long flags;
+	unsigned char u, v;
+	unsigned int t;
+	int i;
+
+	int strobe = gameport_time(gameport, GRIP_STROBE_GPP);
+
+	data[0] = 0;
+	t = strobe;
+	i = 0;
+
+	local_irq_save(flags);
+
+	v = gameport_read(gameport) >> shift;
+
+	do {
+		t--;
+		u = v; v = (gameport_read(gameport) >> shift) & 3;
+		if (~v & u & 1) {
+			data[0] |= (v >> 1) << i++;
+			t = strobe;
+		}
+	} while (i < GRIP_LENGTH_GPP && t > 0);
+
+	local_irq_restore(flags);
+
+	if (i < GRIP_LENGTH_GPP) return -1;
+
+	for (i = 0; i < GRIP_LENGTH_GPP && (data[0] & 0xfe4210) ^ 0x7c0000; i++)
+		data[0] = data[0] >> 1 | (data[0] & 1) << (GRIP_LENGTH_GPP - 1);
+
+	return -(i == GRIP_LENGTH_GPP);
+}
+
+/*
+ * grip_xt_read_packet() reads a Gravis Xterminator packet.
+ */
+
+static int grip_xt_read_packet(struct gameport *gameport, int shift, unsigned int *data)
+{
+	unsigned int i, j, buf, crc;
+	unsigned char u, v, w;
+	unsigned long flags;
+	unsigned int t;
+	char status;
+
+	int strobe = gameport_time(gameport, GRIP_STROBE_XT);
+
+	data[0] = data[1] = data[2] = data[3] = 0;
+	status = buf = i = j = 0;
+	t = strobe;
+
+	local_irq_save(flags);
+
+	v = w = (gameport_read(gameport) >> shift) & 3;
+
+	do {
+		t--;
+		u = (gameport_read(gameport) >> shift) & 3;
+
+		if (u ^ v) {
+
+			if ((u ^ v) & 1) {
+				buf = (buf << 1) | (u >> 1);
+				t = strobe;
+				i++;
+			} else
+
+			if ((((u ^ v) & (v ^ w)) >> 1) & ~(u | v | w) & 1) {
+				if (i == 20) {
+					crc = buf ^ (buf >> 7) ^ (buf >> 14);
+					if (!((crc ^ (0x25cb9e70 >> ((crc >> 2) & 0x1c))) & 0xf)) {
+						data[buf >> 18] = buf >> 4;
+						status |= 1 << (buf >> 18);
+					}
+					j++;
+				}
+				t = strobe;
+				buf = 0;
+				i = 0;
+			}
+			w = v;
+			v = u;
+		}
+
+	} while (status != 0xf && i < GRIP_MAX_BITS_XT && j < GRIP_MAX_CHUNKS_XT && t > 0);
+
+	local_irq_restore(flags);
+
+	return -(status != 0xf);
+}
+
+/*
+ * grip_timer() repeatedly polls the joysticks and generates events.
+ */
+
+static void grip_poll(struct gameport *gameport)
+{
+	struct grip *grip = gameport_get_drvdata(gameport);
+	unsigned int data[GRIP_LENGTH_XT];
+	struct input_dev *dev;
+	int i, j;
+
+	for (i = 0; i < 2; i++) {
+
+		dev = grip->dev[i];
+		if (!dev)
+			continue;
+
+		grip->reads++;
+
+		switch (grip->mode[i]) {
+
+			case GRIP_MODE_GPP:
+
+				if (grip_gpp_read_packet(grip->gameport, (i << 1) + 4, data)) {
+					grip->bads++;
+					break;
+				}
+
+				input_report_abs(dev, ABS_X, ((*data >> 15) & 1) - ((*data >> 16) & 1));
+				input_report_abs(dev, ABS_Y, ((*data >> 13) & 1) - ((*data >> 12) & 1));
+
+				for (j = 0; j < 12; j++)
+					if (grip_btn_gpp[j])
+						input_report_key(dev, grip_btn_gpp[j], (*data >> j) & 1);
+
+				break;
+
+			case GRIP_MODE_BD:
+
+				if (grip_xt_read_packet(grip->gameport, (i << 1) + 4, data)) {
+					grip->bads++;
+					break;
+				}
+
+				input_report_abs(dev, ABS_X,        (data[0] >> 2) & 0x3f);
+				input_report_abs(dev, ABS_Y,  63 - ((data[0] >> 8) & 0x3f));
+				input_report_abs(dev, ABS_THROTTLE, (data[2] >> 8) & 0x3f);
+
+				input_report_abs(dev, ABS_HAT0X, ((data[2] >> 1) & 1) - ( data[2]       & 1));
+				input_report_abs(dev, ABS_HAT0Y, ((data[2] >> 2) & 1) - ((data[2] >> 3) & 1));
+
+				for (j = 0; j < 5; j++)
+					input_report_key(dev, grip_btn_bd[j], (data[3] >> (j + 4)) & 1);
+
+				break;
+
+			case GRIP_MODE_XT:
+
+				if (grip_xt_read_packet(grip->gameport, (i << 1) + 4, data)) {
+					grip->bads++;
+					break;
+				}
+
+				input_report_abs(dev, ABS_X,        (data[0] >> 2) & 0x3f);
+				input_report_abs(dev, ABS_Y,  63 - ((data[0] >> 8) & 0x3f));
+				input_report_abs(dev, ABS_BRAKE,    (data[1] >> 2) & 0x3f);
+				input_report_abs(dev, ABS_GAS,	    (data[1] >> 8) & 0x3f);
+				input_report_abs(dev, ABS_THROTTLE, (data[2] >> 8) & 0x3f);
+
+				input_report_abs(dev, ABS_HAT0X, ((data[2] >> 1) & 1) - ( data[2]       & 1));
+				input_report_abs(dev, ABS_HAT0Y, ((data[2] >> 2) & 1) - ((data[2] >> 3) & 1));
+				input_report_abs(dev, ABS_HAT1X, ((data[2] >> 5) & 1) - ((data[2] >> 4) & 1));
+				input_report_abs(dev, ABS_HAT1Y, ((data[2] >> 6) & 1) - ((data[2] >> 7) & 1));
+
+				for (j = 0; j < 11; j++)
+					input_report_key(dev, grip_btn_xt[j], (data[3] >> (j + 3)) & 1);
+				break;
+
+			case GRIP_MODE_DC:
+
+				if (grip_xt_read_packet(grip->gameport, (i << 1) + 4, data)) {
+					grip->bads++;
+					break;
+				}
+
+				input_report_abs(dev, ABS_X,        (data[0] >> 2) & 0x3f);
+				input_report_abs(dev, ABS_Y,        (data[0] >> 8) & 0x3f);
+				input_report_abs(dev, ABS_RX,       (data[1] >> 2) & 0x3f);
+				input_report_abs(dev, ABS_RY,	    (data[1] >> 8) & 0x3f);
+				input_report_abs(dev, ABS_THROTTLE, (data[2] >> 8) & 0x3f);
+
+				input_report_abs(dev, ABS_HAT0X, ((data[2] >> 1) & 1) - ( data[2]       & 1));
+				input_report_abs(dev, ABS_HAT0Y, ((data[2] >> 2) & 1) - ((data[2] >> 3) & 1));
+
+				for (j = 0; j < 9; j++)
+					input_report_key(dev, grip_btn_dc[j], (data[3] >> (j + 3)) & 1);
+				break;
+
+
+		}
+
+		input_sync(dev);
+	}
+}
+
+static int grip_open(struct input_dev *dev)
+{
+	struct grip *grip = input_get_drvdata(dev);
+
+	gameport_start_polling(grip->gameport);
+	return 0;
+}
+
+static void grip_close(struct input_dev *dev)
+{
+	struct grip *grip = input_get_drvdata(dev);
+
+	gameport_stop_polling(grip->gameport);
+}
+
+static int grip_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct grip *grip;
+	struct input_dev *input_dev;
+	unsigned int data[GRIP_LENGTH_XT];
+	int i, j, t;
+	int err;
+
+	if (!(grip = kzalloc(sizeof(struct grip), GFP_KERNEL)))
+		return -ENOMEM;
+
+	grip->gameport = gameport;
+
+	gameport_set_drvdata(gameport, grip);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	for (i = 0; i < 2; i++) {
+		if (!grip_gpp_read_packet(gameport, (i << 1) + 4, data)) {
+			grip->mode[i] = GRIP_MODE_GPP;
+			continue;
+		}
+		if (!grip_xt_read_packet(gameport, (i << 1) + 4, data)) {
+			if (!(data[3] & 7)) {
+				grip->mode[i] = GRIP_MODE_BD;
+				continue;
+			}
+			if (!(data[2] & 0xf0)) {
+				grip->mode[i] = GRIP_MODE_XT;
+				continue;
+			}
+			grip->mode[i] = GRIP_MODE_DC;
+			continue;
+		}
+	}
+
+	if (!grip->mode[0] && !grip->mode[1]) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	gameport_set_poll_handler(gameport, grip_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	for (i = 0; i < 2; i++) {
+		if (!grip->mode[i])
+			continue;
+
+		grip->dev[i] = input_dev = input_allocate_device();
+		if (!input_dev) {
+			err = -ENOMEM;
+			goto fail3;
+		}
+
+		snprintf(grip->phys[i], sizeof(grip->phys[i]),
+			 "%s/input%d", gameport->phys, i);
+
+		input_dev->name = grip_name[grip->mode[i]];
+		input_dev->phys = grip->phys[i];
+		input_dev->id.bustype = BUS_GAMEPORT;
+		input_dev->id.vendor = GAMEPORT_ID_VENDOR_GRAVIS;
+		input_dev->id.product = grip->mode[i];
+		input_dev->id.version = 0x0100;
+		input_dev->dev.parent = &gameport->dev;
+
+		input_set_drvdata(input_dev, grip);
+
+		input_dev->open = grip_open;
+		input_dev->close = grip_close;
+
+		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+		for (j = 0; (t = grip_abs[grip->mode[i]][j]) >= 0; j++) {
+
+			if (j < grip_cen[grip->mode[i]])
+				input_set_abs_params(input_dev, t, 14, 52, 1, 2);
+			else if (j < grip_anx[grip->mode[i]])
+				input_set_abs_params(input_dev, t, 3, 57, 1, 0);
+			else
+				input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+		}
+
+		for (j = 0; (t = grip_btn[grip->mode[i]][j]) >= 0; j++)
+			if (t > 0)
+				set_bit(t, input_dev->keybit);
+
+		err = input_register_device(grip->dev[i]);
+		if (err)
+			goto fail4;
+	}
+
+	return 0;
+
+ fail4:	input_free_device(grip->dev[i]);
+ fail3:	while (--i >= 0)
+		if (grip->dev[i])
+			input_unregister_device(grip->dev[i]);
+ fail2:	gameport_close(gameport);
+ fail1:	gameport_set_drvdata(gameport, NULL);
+	kfree(grip);
+	return err;
+}
+
+static void grip_disconnect(struct gameport *gameport)
+{
+	struct grip *grip = gameport_get_drvdata(gameport);
+	int i;
+
+	for (i = 0; i < 2; i++)
+		if (grip->dev[i])
+			input_unregister_device(grip->dev[i]);
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	kfree(grip);
+}
+
+static struct gameport_driver grip_drv = {
+	.driver		= {
+		.name	= "grip",
+		.owner	= THIS_MODULE,
+	},
+	.description	= DRIVER_DESC,
+	.connect	= grip_connect,
+	.disconnect	= grip_disconnect,
+};
+
+module_gameport_driver(grip_drv);
diff --git a/drivers/input/joystick/grip_mp.c b/drivers/input/joystick/grip_mp.c
new file mode 100644
index 000000000..056a89ac2
--- /dev/null
+++ b/drivers/input/joystick/grip_mp.c
@@ -0,0 +1,690 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Driver for the Gravis Grip Multiport, a gamepad "hub" that
+ *  connects up to four 9-pin digital gamepads/joysticks.
+ *  Driver tested on SMP and UP kernel versions 2.4.18-4 and 2.4.18-5.
+ *
+ *  Thanks to Chris Gassib for helpful advice.
+ *
+ *  Copyright (c)      2002 Brian Bonnlander, Bill Soudan
+ *  Copyright (c) 1998-2000 Vojtech Pavlik
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/proc_fs.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"Gravis Grip Multiport driver"
+
+MODULE_AUTHOR("Brian Bonnlander");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#ifdef GRIP_DEBUG
+#define dbg(format, arg...) printk(KERN_ERR __FILE__ ": " format "\n" , ## arg)
+#else
+#define dbg(format, arg...) do {} while (0)
+#endif
+
+#define GRIP_MAX_PORTS	4
+/*
+ * Grip multiport state
+ */
+
+struct grip_port {
+	struct input_dev *dev;
+	int mode;
+	int registered;
+
+	/* individual gamepad states */
+	int buttons;
+	int xaxes;
+	int yaxes;
+	int dirty;     /* has the state been updated? */
+};
+
+struct grip_mp {
+	struct gameport *gameport;
+	struct grip_port *port[GRIP_MAX_PORTS];
+	int reads;
+	int bads;
+};
+
+/*
+ * Multiport packet interpretation
+ */
+
+#define PACKET_FULL          0x80000000       /* packet is full                        */
+#define PACKET_IO_FAST       0x40000000       /* 3 bits per gameport read              */
+#define PACKET_IO_SLOW       0x20000000       /* 1 bit per gameport read               */
+#define PACKET_MP_MORE       0x04000000       /* multiport wants to send more          */
+#define PACKET_MP_DONE       0x02000000       /* multiport done sending                */
+
+/*
+ * Packet status code interpretation
+ */
+
+#define IO_GOT_PACKET        0x0100           /* Got a packet                           */
+#define IO_MODE_FAST         0x0200           /* Used 3 data bits per gameport read     */
+#define IO_SLOT_CHANGE       0x0800           /* Multiport physical slot status changed */
+#define IO_DONE              0x1000           /* Multiport is done sending packets      */
+#define IO_RETRY             0x4000           /* Try again later to get packet          */
+#define IO_RESET             0x8000           /* Force multiport to resend all packets  */
+
+/*
+ * Gamepad configuration data.  Other 9-pin digital joystick devices
+ * may work with the multiport, so this may not be an exhaustive list!
+ * Commodore 64 joystick remains untested.
+ */
+
+#define GRIP_INIT_DELAY         2000          /*  2 ms */
+
+#define GRIP_MODE_NONE		0
+#define GRIP_MODE_RESET         1
+#define GRIP_MODE_GP		2
+#define GRIP_MODE_C64		3
+
+static const int grip_btn_gp[]  = { BTN_TR, BTN_TL, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, -1 };
+static const int grip_btn_c64[] = { BTN_JOYSTICK, -1 };
+
+static const int grip_abs_gp[]  = { ABS_X, ABS_Y, -1 };
+static const int grip_abs_c64[] = { ABS_X, ABS_Y, -1 };
+
+static const int *grip_abs[] = { NULL, NULL, grip_abs_gp, grip_abs_c64 };
+static const int *grip_btn[] = { NULL, NULL, grip_btn_gp, grip_btn_c64 };
+
+static const char *grip_name[] = { NULL, NULL, "Gravis Grip Pad", "Commodore 64 Joystick" };
+
+static const int init_seq[] = {
+	1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1,
+	1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1,
+	1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1,
+	0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1 };
+
+/* Maps multiport directional values to X,Y axis values (each axis encoded in 3 bits) */
+
+static const int axis_map[] = { 5, 9, 1, 5, 6, 10, 2, 6, 4, 8, 0, 4, 5, 9, 1, 5 };
+
+static int register_slot(int i, struct grip_mp *grip);
+
+/*
+ * Returns whether an odd or even number of bits are on in pkt.
+ */
+
+static int bit_parity(u32 pkt)
+{
+	int x = pkt ^ (pkt >> 16);
+	x ^= x >> 8;
+	x ^= x >> 4;
+	x ^= x >> 2;
+	x ^= x >> 1;
+	return x & 1;
+}
+
+/*
+ * Poll gameport; return true if all bits set in 'onbits' are on and
+ * all bits set in 'offbits' are off.
+ */
+
+static inline int poll_until(u8 onbits, u8 offbits, int u_sec, struct gameport* gp, u8 *data)
+{
+	int i, nloops;
+
+	nloops = gameport_time(gp, u_sec);
+	for (i = 0; i < nloops; i++) {
+		*data = gameport_read(gp);
+		if ((*data & onbits) == onbits &&
+		    (~(*data) & offbits) == offbits)
+			return 1;
+	}
+	dbg("gameport timed out after %d microseconds.\n", u_sec);
+	return 0;
+}
+
+/*
+ * Gets a 28-bit packet from the multiport.
+ *
+ * After getting a packet successfully, commands encoded by sendcode may
+ * be sent to the multiport.
+ *
+ * The multiport clock value is reflected in gameport bit B4.
+ *
+ * Returns a packet status code indicating whether packet is valid, the transfer
+ * mode, and any error conditions.
+ *
+ * sendflags:      current I/O status
+ * sendcode:   data to send to the multiport if sendflags is nonzero
+ */
+
+static int mp_io(struct gameport* gameport, int sendflags, int sendcode, u32 *packet)
+{
+	u8  raw_data;            /* raw data from gameport */
+	u8  data_mask;           /* packet data bits from raw_data */
+	u32 pkt;                 /* packet temporary storage */
+	int bits_per_read;       /* num packet bits per gameport read */
+	int portvals = 0;        /* used for port value sanity check */
+	int i;
+
+	/* Gameport bits B0, B4, B5 should first be off, then B4 should come on. */
+
+	*packet = 0;
+	raw_data = gameport_read(gameport);
+	if (raw_data & 1)
+		return IO_RETRY;
+
+	for (i = 0; i < 64; i++) {
+		raw_data = gameport_read(gameport);
+		portvals |= 1 << ((raw_data >> 4) & 3); /* Demux B4, B5 */
+	}
+
+	if (portvals == 1) {                            /* B4, B5 off */
+		raw_data = gameport_read(gameport);
+		portvals = raw_data & 0xf0;
+
+		if (raw_data & 0x31)
+			return IO_RESET;
+		gameport_trigger(gameport);
+
+		if (!poll_until(0x10, 0, 308, gameport, &raw_data))
+			return IO_RESET;
+	} else
+		return IO_RETRY;
+
+	/* Determine packet transfer mode and prepare for packet construction. */
+
+	if (raw_data & 0x20) {                 /* 3 data bits/read */
+		portvals |= raw_data >> 4;     /* Compare B4-B7 before & after trigger */
+
+		if (portvals != 0xb)
+			return 0;
+		data_mask = 7;
+		bits_per_read = 3;
+		pkt = (PACKET_FULL | PACKET_IO_FAST) >> 28;
+	} else {                                 /* 1 data bit/read */
+		data_mask = 1;
+		bits_per_read = 1;
+		pkt = (PACKET_FULL | PACKET_IO_SLOW) >> 28;
+	}
+
+	/* Construct a packet.  Final data bits must be zero. */
+
+	while (1) {
+		if (!poll_until(0, 0x10, 77, gameport, &raw_data))
+			return IO_RESET;
+		raw_data = (raw_data >> 5) & data_mask;
+
+		if (pkt & PACKET_FULL)
+			break;
+		pkt = (pkt << bits_per_read) | raw_data;
+
+		if (!poll_until(0x10, 0, 77, gameport, &raw_data))
+			return IO_RESET;
+	}
+
+	if (raw_data)
+		return IO_RESET;
+
+	/* If 3 bits/read used, drop from 30 bits to 28. */
+
+	if (bits_per_read == 3) {
+		pkt = (pkt & 0xffff0000) | ((pkt << 1) & 0xffff);
+		pkt = (pkt >> 2) | 0xf0000000;
+	}
+
+	if (bit_parity(pkt) == 1)
+		return IO_RESET;
+
+	/* Acknowledge packet receipt */
+
+	if (!poll_until(0x30, 0, 77, gameport, &raw_data))
+		return IO_RESET;
+
+	raw_data = gameport_read(gameport);
+
+	if (raw_data & 1)
+		return IO_RESET;
+
+	gameport_trigger(gameport);
+
+	if (!poll_until(0, 0x20, 77, gameport, &raw_data))
+		return IO_RESET;
+
+        /* Return if we just wanted the packet or multiport wants to send more */
+
+	*packet = pkt;
+	if ((sendflags == 0) || ((sendflags & IO_RETRY) && !(pkt & PACKET_MP_DONE)))
+		return IO_GOT_PACKET;
+
+	if (pkt & PACKET_MP_MORE)
+		return IO_GOT_PACKET | IO_RETRY;
+
+	/* Multiport is done sending packets and is ready to receive data */
+
+	if (!poll_until(0x20, 0, 77, gameport, &raw_data))
+		return IO_GOT_PACKET | IO_RESET;
+
+	raw_data = gameport_read(gameport);
+	if (raw_data & 1)
+		return IO_GOT_PACKET | IO_RESET;
+
+	/* Trigger gameport based on bits in sendcode */
+
+	gameport_trigger(gameport);
+	do {
+		if (!poll_until(0x20, 0x10, 116, gameport, &raw_data))
+			return IO_GOT_PACKET | IO_RESET;
+
+		if (!poll_until(0x30, 0, 193, gameport, &raw_data))
+			return IO_GOT_PACKET | IO_RESET;
+
+		if (raw_data & 1)
+			return IO_GOT_PACKET | IO_RESET;
+
+		if (sendcode & 1)
+			gameport_trigger(gameport);
+
+		sendcode >>= 1;
+	} while (sendcode);
+
+	return IO_GOT_PACKET | IO_MODE_FAST;
+}
+
+/*
+ * Disables and restores interrupts for mp_io(), which does the actual I/O.
+ */
+
+static int multiport_io(struct gameport* gameport, int sendflags, int sendcode, u32 *packet)
+{
+	int status;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	status = mp_io(gameport, sendflags, sendcode, packet);
+	local_irq_restore(flags);
+
+	return status;
+}
+
+/*
+ * Puts multiport into digital mode.  Multiport LED turns green.
+ *
+ * Returns true if a valid digital packet was received, false otherwise.
+ */
+
+static int dig_mode_start(struct gameport *gameport, u32 *packet)
+{
+	int i;
+	int flags, tries = 0, bads = 0;
+
+	for (i = 0; i < ARRAY_SIZE(init_seq); i++) {     /* Send magic sequence */
+		if (init_seq[i])
+			gameport_trigger(gameport);
+		udelay(GRIP_INIT_DELAY);
+	}
+
+	for (i = 0; i < 16; i++)            /* Wait for multiport to settle */
+		udelay(GRIP_INIT_DELAY);
+
+	while (tries < 64 && bads < 8) {    /* Reset multiport and try getting a packet */
+
+		flags = multiport_io(gameport, IO_RESET, 0x27, packet);
+
+		if (flags & IO_MODE_FAST)
+			return 1;
+
+		if (flags & IO_RETRY)
+			tries++;
+		else
+			bads++;
+	}
+	return 0;
+}
+
+/*
+ * Packet structure: B0-B15   => gamepad state
+ *                   B16-B20  => gamepad device type
+ *                   B21-B24  => multiport slot index (1-4)
+ *
+ * Known device types: 0x1f (grip pad), 0x0 (no device).  Others may exist.
+ *
+ * Returns the packet status.
+ */
+
+static int get_and_decode_packet(struct grip_mp *grip, int flags)
+{
+	struct grip_port *port;
+	u32 packet;
+	int joytype = 0;
+	int slot;
+
+	/* Get a packet and check for validity */
+
+	flags &= IO_RESET | IO_RETRY;
+	flags = multiport_io(grip->gameport, flags, 0, &packet);
+	grip->reads++;
+
+	if (packet & PACKET_MP_DONE)
+		flags |= IO_DONE;
+
+	if (flags && !(flags & IO_GOT_PACKET)) {
+		grip->bads++;
+		return flags;
+	}
+
+	/* Ignore non-gamepad packets, e.g. multiport hardware version */
+
+	slot = ((packet >> 21) & 0xf) - 1;
+	if ((slot < 0) || (slot > 3))
+		return flags;
+
+	port = grip->port[slot];
+
+	/*
+	 * Handle "reset" packets, which occur at startup, and when gamepads
+	 * are removed or plugged in.  May contain configuration of a new gamepad.
+	 */
+
+	joytype = (packet >> 16) & 0x1f;
+	if (!joytype) {
+
+		if (port->registered) {
+			printk(KERN_INFO "grip_mp: removing %s, slot %d\n",
+			       grip_name[port->mode], slot);
+			input_unregister_device(port->dev);
+			port->registered = 0;
+		}
+		dbg("Reset: grip multiport slot %d\n", slot);
+		port->mode = GRIP_MODE_RESET;
+		flags |= IO_SLOT_CHANGE;
+		return flags;
+	}
+
+	/* Interpret a grip pad packet */
+
+	if (joytype == 0x1f) {
+
+		int dir = (packet >> 8) & 0xf;          /* eight way directional value */
+		port->buttons = (~packet) & 0xff;
+		port->yaxes = ((axis_map[dir] >> 2) & 3) - 1;
+		port->xaxes = (axis_map[dir] & 3) - 1;
+		port->dirty = 1;
+
+		if (port->mode == GRIP_MODE_RESET)
+			flags |= IO_SLOT_CHANGE;
+
+		port->mode = GRIP_MODE_GP;
+
+		if (!port->registered) {
+			dbg("New Grip pad in multiport slot %d.\n", slot);
+			if (register_slot(slot, grip)) {
+				port->mode = GRIP_MODE_RESET;
+				port->dirty = 0;
+			}
+		}
+		return flags;
+	}
+
+	/* Handle non-grip device codes.  For now, just print diagnostics. */
+
+	{
+		static int strange_code = 0;
+		if (strange_code != joytype) {
+			printk(KERN_INFO "Possible non-grip pad/joystick detected.\n");
+			printk(KERN_INFO "Got joy type 0x%x and packet 0x%x.\n", joytype, packet);
+			strange_code = joytype;
+		}
+	}
+	return flags;
+}
+
+/*
+ * Returns true if all multiport slot states appear valid.
+ */
+
+static int slots_valid(struct grip_mp *grip)
+{
+	int flags, slot, invalid = 0, active = 0;
+
+	flags = get_and_decode_packet(grip, 0);
+	if (!(flags & IO_GOT_PACKET))
+		return 0;
+
+	for (slot = 0; slot < 4; slot++) {
+		if (grip->port[slot]->mode == GRIP_MODE_RESET)
+			invalid = 1;
+		if (grip->port[slot]->mode != GRIP_MODE_NONE)
+			active = 1;
+	}
+
+	/* Return true if no active slot but multiport sent all its data */
+	if (!active)
+		return (flags & IO_DONE) ? 1 : 0;
+
+	/* Return false if invalid device code received */
+	return invalid ? 0 : 1;
+}
+
+/*
+ * Returns whether the multiport was placed into digital mode and
+ * able to communicate its state successfully.
+ */
+
+static int multiport_init(struct grip_mp *grip)
+{
+	int dig_mode, initialized = 0, tries = 0;
+	u32 packet;
+
+	dig_mode = dig_mode_start(grip->gameport, &packet);
+	while (!dig_mode && tries < 4) {
+		dig_mode = dig_mode_start(grip->gameport, &packet);
+		tries++;
+	}
+
+	if (dig_mode)
+		dbg("multiport_init(): digital mode activated.\n");
+	else {
+		dbg("multiport_init(): unable to activate digital mode.\n");
+		return 0;
+	}
+
+	/* Get packets, store multiport state, and check state's validity */
+	for (tries = 0; tries < 4096; tries++) {
+		if (slots_valid(grip)) {
+			initialized = 1;
+			break;
+		}
+	}
+	dbg("multiport_init(): initialized == %d\n", initialized);
+	return initialized;
+}
+
+/*
+ * Reports joystick state to the linux input layer.
+ */
+
+static void report_slot(struct grip_mp *grip, int slot)
+{
+	struct grip_port *port = grip->port[slot];
+	int i;
+
+	/* Store button states with linux input driver */
+
+	for (i = 0; i < 8; i++)
+		input_report_key(port->dev, grip_btn_gp[i], (port->buttons >> i) & 1);
+
+	/* Store axis states with linux driver */
+
+	input_report_abs(port->dev, ABS_X, port->xaxes);
+	input_report_abs(port->dev, ABS_Y, port->yaxes);
+
+	/* Tell the receiver of the events to process them */
+
+	input_sync(port->dev);
+
+	port->dirty = 0;
+}
+
+/*
+ * Get the multiport state.
+ */
+
+static void grip_poll(struct gameport *gameport)
+{
+	struct grip_mp *grip = gameport_get_drvdata(gameport);
+	int i, npkts, flags;
+
+	for (npkts = 0; npkts < 4; npkts++) {
+		flags = IO_RETRY;
+		for (i = 0; i < 32; i++) {
+			flags = get_and_decode_packet(grip, flags);
+			if ((flags & IO_GOT_PACKET) || !(flags & IO_RETRY))
+				break;
+		}
+		if (flags & IO_DONE)
+			break;
+	}
+
+	for (i = 0; i < 4; i++)
+		if (grip->port[i]->dirty)
+			report_slot(grip, i);
+}
+
+/*
+ * Called when a joystick device file is opened
+ */
+
+static int grip_open(struct input_dev *dev)
+{
+	struct grip_mp *grip = input_get_drvdata(dev);
+
+	gameport_start_polling(grip->gameport);
+	return 0;
+}
+
+/*
+ * Called when a joystick device file is closed
+ */
+
+static void grip_close(struct input_dev *dev)
+{
+	struct grip_mp *grip = input_get_drvdata(dev);
+
+	gameport_stop_polling(grip->gameport);
+}
+
+/*
+ * Tell the linux input layer about a newly plugged-in gamepad.
+ */
+
+static int register_slot(int slot, struct grip_mp *grip)
+{
+	struct grip_port *port = grip->port[slot];
+	struct input_dev *input_dev;
+	int j, t;
+	int err;
+
+	port->dev = input_dev = input_allocate_device();
+	if (!input_dev)
+		return -ENOMEM;
+
+	input_dev->name = grip_name[port->mode];
+	input_dev->id.bustype = BUS_GAMEPORT;
+	input_dev->id.vendor = GAMEPORT_ID_VENDOR_GRAVIS;
+	input_dev->id.product = 0x0100 + port->mode;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &grip->gameport->dev;
+
+	input_set_drvdata(input_dev, grip);
+
+	input_dev->open = grip_open;
+	input_dev->close = grip_close;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	for (j = 0; (t = grip_abs[port->mode][j]) >= 0; j++)
+		input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+
+	for (j = 0; (t = grip_btn[port->mode][j]) >= 0; j++)
+		if (t > 0)
+			set_bit(t, input_dev->keybit);
+
+	err = input_register_device(port->dev);
+	if (err) {
+		input_free_device(port->dev);
+		return err;
+	}
+
+	port->registered = 1;
+
+	if (port->dirty)	            /* report initial state, if any */
+		report_slot(grip, slot);
+
+	return 0;
+}
+
+static int grip_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct grip_mp *grip;
+	int err;
+
+	if (!(grip = kzalloc(sizeof(struct grip_mp), GFP_KERNEL)))
+		return -ENOMEM;
+
+	grip->gameport = gameport;
+
+	gameport_set_drvdata(gameport, grip);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	gameport_set_poll_handler(gameport, grip_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	if (!multiport_init(grip)) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	if (!grip->port[0]->mode && !grip->port[1]->mode && !grip->port[2]->mode && !grip->port[3]->mode) {
+		/* nothing plugged in */
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	return 0;
+
+fail2:	gameport_close(gameport);
+fail1:	gameport_set_drvdata(gameport, NULL);
+	kfree(grip);
+	return err;
+}
+
+static void grip_disconnect(struct gameport *gameport)
+{
+	struct grip_mp *grip = gameport_get_drvdata(gameport);
+	int i;
+
+	for (i = 0; i < 4; i++)
+		if (grip->port[i]->registered)
+			input_unregister_device(grip->port[i]->dev);
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	kfree(grip);
+}
+
+static struct gameport_driver grip_drv = {
+	.driver		= {
+		.name	= "grip_mp",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= grip_connect,
+	.disconnect	= grip_disconnect,
+};
+
+module_gameport_driver(grip_drv);
diff --git a/drivers/input/joystick/guillemot.c b/drivers/input/joystick/guillemot.c
new file mode 100644
index 000000000..205eb6f8b
--- /dev/null
+++ b/drivers/input/joystick/guillemot.c
@@ -0,0 +1,264 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 2001 Vojtech Pavlik
+ */
+
+/*
+ * Guillemot Digital Interface Protocol driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"Guillemot Digital joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define GUILLEMOT_MAX_START	600	/* 600 us */
+#define GUILLEMOT_MAX_STROBE	60	/* 60 us */
+#define GUILLEMOT_MAX_LENGTH	17	/* 17 bytes */
+
+static short guillemot_abs_pad[] =
+	{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, -1 };
+
+static short guillemot_btn_pad[] =
+	{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_MODE, BTN_SELECT, -1 };
+
+static struct {
+        int x;
+        int y;
+} guillemot_hat_to_axis[16] = {{ 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+struct guillemot_type {
+	unsigned char id;
+	short *abs;
+	short *btn;
+	int hat;
+	char *name;
+};
+
+struct guillemot {
+	struct gameport *gameport;
+	struct input_dev *dev;
+	int bads;
+	int reads;
+	struct guillemot_type *type;
+	unsigned char length;
+	char phys[32];
+};
+
+static struct guillemot_type guillemot_type[] = {
+	{ 0x00, guillemot_abs_pad, guillemot_btn_pad, 1, "Guillemot Pad" },
+	{ 0 }};
+
+/*
+ * guillemot_read_packet() reads Guillemot joystick data.
+ */
+
+static int guillemot_read_packet(struct gameport *gameport, u8 *data)
+{
+	unsigned long flags;
+	unsigned char u, v;
+	unsigned int t, s;
+	int i;
+
+	for (i = 0; i < GUILLEMOT_MAX_LENGTH; i++)
+		data[i] = 0;
+
+	i = 0;
+	t = gameport_time(gameport, GUILLEMOT_MAX_START);
+	s = gameport_time(gameport, GUILLEMOT_MAX_STROBE);
+
+	local_irq_save(flags);
+	gameport_trigger(gameport);
+	v = gameport_read(gameport);
+
+	while (t > 0 && i < GUILLEMOT_MAX_LENGTH * 8) {
+		t--;
+		u = v; v = gameport_read(gameport);
+		if (v & ~u & 0x10) {
+			data[i >> 3] |= ((v >> 5) & 1) << (i & 7);
+			i++;
+			t = s;
+		}
+	}
+
+	local_irq_restore(flags);
+
+	return i;
+}
+
+/*
+ * guillemot_poll() reads and analyzes Guillemot joystick data.
+ */
+
+static void guillemot_poll(struct gameport *gameport)
+{
+	struct guillemot *guillemot = gameport_get_drvdata(gameport);
+	struct input_dev *dev = guillemot->dev;
+	u8 data[GUILLEMOT_MAX_LENGTH];
+	int i;
+
+	guillemot->reads++;
+
+	if (guillemot_read_packet(guillemot->gameport, data) != GUILLEMOT_MAX_LENGTH * 8 ||
+		data[0] != 0x55 || data[16] != 0xaa) {
+		guillemot->bads++;
+	} else {
+
+		for (i = 0; i < 6 && guillemot->type->abs[i] >= 0; i++)
+			input_report_abs(dev, guillemot->type->abs[i], data[i + 5]);
+
+		if (guillemot->type->hat) {
+			input_report_abs(dev, ABS_HAT0X, guillemot_hat_to_axis[data[4] >> 4].x);
+			input_report_abs(dev, ABS_HAT0Y, guillemot_hat_to_axis[data[4] >> 4].y);
+		}
+
+		for (i = 0; i < 16 && guillemot->type->btn[i] >= 0; i++)
+			input_report_key(dev, guillemot->type->btn[i], (data[2 + (i >> 3)] >> (i & 7)) & 1);
+	}
+
+	input_sync(dev);
+}
+
+/*
+ * guillemot_open() is a callback from the input open routine.
+ */
+
+static int guillemot_open(struct input_dev *dev)
+{
+	struct guillemot *guillemot = input_get_drvdata(dev);
+
+	gameport_start_polling(guillemot->gameport);
+	return 0;
+}
+
+/*
+ * guillemot_close() is a callback from the input close routine.
+ */
+
+static void guillemot_close(struct input_dev *dev)
+{
+	struct guillemot *guillemot = input_get_drvdata(dev);
+
+	gameport_stop_polling(guillemot->gameport);
+}
+
+/*
+ * guillemot_connect() probes for Guillemot joysticks.
+ */
+
+static int guillemot_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct guillemot *guillemot;
+	struct input_dev *input_dev;
+	u8 data[GUILLEMOT_MAX_LENGTH];
+	int i, t;
+	int err;
+
+	guillemot = kzalloc(sizeof(struct guillemot), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!guillemot || !input_dev) {
+		err = -ENOMEM;
+		goto fail1;
+	}
+
+	guillemot->gameport = gameport;
+	guillemot->dev = input_dev;
+
+	gameport_set_drvdata(gameport, guillemot);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	i = guillemot_read_packet(gameport, data);
+
+	if (i != GUILLEMOT_MAX_LENGTH * 8 || data[0] != 0x55 || data[16] != 0xaa) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	for (i = 0; guillemot_type[i].name; i++)
+		if (guillemot_type[i].id == data[11])
+			break;
+
+	if (!guillemot_type[i].name) {
+		printk(KERN_WARNING "guillemot.c: Unknown joystick on %s. [ %02x%02x:%04x, ver %d.%02d ]\n",
+			gameport->phys, data[12], data[13], data[11], data[14], data[15]);
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	gameport_set_poll_handler(gameport, guillemot_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	snprintf(guillemot->phys, sizeof(guillemot->phys), "%s/input0", gameport->phys);
+	guillemot->type = guillemot_type + i;
+
+	input_dev->name = guillemot_type[i].name;
+	input_dev->phys = guillemot->phys;
+	input_dev->id.bustype = BUS_GAMEPORT;
+	input_dev->id.vendor = GAMEPORT_ID_VENDOR_GUILLEMOT;
+	input_dev->id.product = guillemot_type[i].id;
+	input_dev->id.version = (int)data[14] << 8 | data[15];
+	input_dev->dev.parent = &gameport->dev;
+
+	input_set_drvdata(input_dev, guillemot);
+
+	input_dev->open = guillemot_open;
+	input_dev->close = guillemot_close;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	for (i = 0; (t = guillemot->type->abs[i]) >= 0; i++)
+		input_set_abs_params(input_dev, t, 0, 255, 0, 0);
+
+	if (guillemot->type->hat) {
+		input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0);
+		input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0);
+	}
+
+	for (i = 0; (t = guillemot->type->btn[i]) >= 0; i++)
+		set_bit(t, input_dev->keybit);
+
+	err = input_register_device(guillemot->dev);
+	if (err)
+		goto fail2;
+
+	return 0;
+
+fail2:	gameport_close(gameport);
+fail1:  gameport_set_drvdata(gameport, NULL);
+	input_free_device(input_dev);
+	kfree(guillemot);
+	return err;
+}
+
+static void guillemot_disconnect(struct gameport *gameport)
+{
+	struct guillemot *guillemot = gameport_get_drvdata(gameport);
+
+	printk(KERN_INFO "guillemot.c: Failed %d reads out of %d on %s\n", guillemot->reads, guillemot->bads, guillemot->phys);
+	input_unregister_device(guillemot->dev);
+	gameport_close(gameport);
+	kfree(guillemot);
+}
+
+static struct gameport_driver guillemot_drv = {
+	.driver		= {
+		.name	= "guillemot",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= guillemot_connect,
+	.disconnect	= guillemot_disconnect,
+};
+
+module_gameport_driver(guillemot_drv);
diff --git a/drivers/input/joystick/iforce/Kconfig b/drivers/input/joystick/iforce/Kconfig
new file mode 100644
index 000000000..f002fb88f
--- /dev/null
+++ b/drivers/input/joystick/iforce/Kconfig
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# I-Force driver configuration
+#
+config JOYSTICK_IFORCE
+	tristate "I-Force devices"
+	depends on INPUT && INPUT_JOYSTICK
+	help
+	  Say Y here if you have an I-Force joystick or steering wheel
+
+	  You also must choose at least one of the two options below.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called iforce.
+
+config JOYSTICK_IFORCE_USB
+	tristate "I-Force USB joysticks and wheels"
+	depends on JOYSTICK_IFORCE && USB
+	help
+	  Say Y here if you have an I-Force joystick or steering wheel
+	  connected to your USB port.
+
+config JOYSTICK_IFORCE_232
+	tristate "I-Force Serial joysticks and wheels"
+	depends on JOYSTICK_IFORCE && SERIO
+	help
+	  Say Y here if you have an I-Force joystick or steering wheel
+	  connected to your serial (COM) port.
+
+	  You will need an additional utility called inputattach, see
+	  <file:Documentation/input/joydev/joystick.rst>
+	  and <file:Documentation/input/ff.rst>.
+
diff --git a/drivers/input/joystick/iforce/Makefile b/drivers/input/joystick/iforce/Makefile
new file mode 100644
index 000000000..dbbe7c040
--- /dev/null
+++ b/drivers/input/joystick/iforce/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the I-Force driver
+#
+# By Johann Deneux <johann.deneux@gmail.com>
+#
+
+obj-$(CONFIG_JOYSTICK_IFORCE)		+= iforce.o
+iforce-y := iforce-ff.o iforce-main.o iforce-packets.o
+obj-$(CONFIG_JOYSTICK_IFORCE_232)	+= iforce-serio.o
+obj-$(CONFIG_JOYSTICK_IFORCE_USB)	+= iforce-usb.o
diff --git a/drivers/input/joystick/iforce/iforce-ff.c b/drivers/input/joystick/iforce/iforce-ff.c
new file mode 100644
index 000000000..95c034884
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-ff.c
@@ -0,0 +1,524 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ *  Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ *  USB/RS232 I-Force joysticks and wheels.
+ */
+
+#include "iforce.h"
+
+/*
+ * Set the magnitude of a constant force effect
+ * Return error code
+ *
+ * Note: caller must ensure exclusive access to device
+ */
+
+static int make_magnitude_modifier(struct iforce* iforce,
+	struct resource* mod_chunk, int no_alloc, __s16 level)
+{
+	unsigned char data[3];
+
+	if (!no_alloc) {
+		mutex_lock(&iforce->mem_mutex);
+		if (allocate_resource(&(iforce->device_memory), mod_chunk, 2,
+			iforce->device_memory.start, iforce->device_memory.end, 2L,
+			NULL, NULL)) {
+			mutex_unlock(&iforce->mem_mutex);
+			return -ENOSPC;
+		}
+		mutex_unlock(&iforce->mem_mutex);
+	}
+
+	data[0] = LO(mod_chunk->start);
+	data[1] = HI(mod_chunk->start);
+	data[2] = HIFIX80(level);
+
+	iforce_send_packet(iforce, FF_CMD_MAGNITUDE, data);
+
+	iforce_dump_packet(iforce, "magnitude", FF_CMD_MAGNITUDE, data);
+	return 0;
+}
+
+/*
+ * Upload the component of an effect dealing with the period, phase and magnitude
+ */
+
+static int make_period_modifier(struct iforce* iforce,
+	struct resource* mod_chunk, int no_alloc,
+	__s16 magnitude, __s16 offset, u16 period, u16 phase)
+{
+	unsigned char data[7];
+
+	period = TIME_SCALE(period);
+
+	if (!no_alloc) {
+		mutex_lock(&iforce->mem_mutex);
+		if (allocate_resource(&(iforce->device_memory), mod_chunk, 0x0c,
+			iforce->device_memory.start, iforce->device_memory.end, 2L,
+			NULL, NULL)) {
+			mutex_unlock(&iforce->mem_mutex);
+			return -ENOSPC;
+		}
+		mutex_unlock(&iforce->mem_mutex);
+	}
+
+	data[0] = LO(mod_chunk->start);
+	data[1] = HI(mod_chunk->start);
+
+	data[2] = HIFIX80(magnitude);
+	data[3] = HIFIX80(offset);
+	data[4] = HI(phase);
+
+	data[5] = LO(period);
+	data[6] = HI(period);
+
+	iforce_send_packet(iforce, FF_CMD_PERIOD, data);
+
+	return 0;
+}
+
+/*
+ * Uploads the part of an effect setting the envelope of the force
+ */
+
+static int make_envelope_modifier(struct iforce* iforce,
+	struct resource* mod_chunk, int no_alloc,
+	u16 attack_duration, __s16 initial_level,
+	u16 fade_duration, __s16 final_level)
+{
+	unsigned char data[8];
+
+	attack_duration = TIME_SCALE(attack_duration);
+	fade_duration = TIME_SCALE(fade_duration);
+
+	if (!no_alloc) {
+		mutex_lock(&iforce->mem_mutex);
+		if (allocate_resource(&(iforce->device_memory), mod_chunk, 0x0e,
+			iforce->device_memory.start, iforce->device_memory.end, 2L,
+			NULL, NULL)) {
+			mutex_unlock(&iforce->mem_mutex);
+			return -ENOSPC;
+		}
+		mutex_unlock(&iforce->mem_mutex);
+	}
+
+	data[0] = LO(mod_chunk->start);
+	data[1] = HI(mod_chunk->start);
+
+	data[2] = LO(attack_duration);
+	data[3] = HI(attack_duration);
+	data[4] = HI(initial_level);
+
+	data[5] = LO(fade_duration);
+	data[6] = HI(fade_duration);
+	data[7] = HI(final_level);
+
+	iforce_send_packet(iforce, FF_CMD_ENVELOPE, data);
+
+	return 0;
+}
+
+/*
+ * Component of spring, friction, inertia... effects
+ */
+
+static int make_condition_modifier(struct iforce* iforce,
+	struct resource* mod_chunk, int no_alloc,
+	__u16 rsat, __u16 lsat, __s16 rk, __s16 lk, u16 db, __s16 center)
+{
+	unsigned char data[10];
+
+	if (!no_alloc) {
+		mutex_lock(&iforce->mem_mutex);
+		if (allocate_resource(&(iforce->device_memory), mod_chunk, 8,
+			iforce->device_memory.start, iforce->device_memory.end, 2L,
+			NULL, NULL)) {
+			mutex_unlock(&iforce->mem_mutex);
+			return -ENOSPC;
+		}
+		mutex_unlock(&iforce->mem_mutex);
+	}
+
+	data[0] = LO(mod_chunk->start);
+	data[1] = HI(mod_chunk->start);
+
+	data[2] = (100 * rk) >> 15;	/* Dangerous: the sign is extended by gcc on plateforms providing an arith shift */
+	data[3] = (100 * lk) >> 15; /* This code is incorrect on cpus lacking arith shift */
+
+	center = (500 * center) >> 15;
+	data[4] = LO(center);
+	data[5] = HI(center);
+
+	db = (1000 * db) >> 16;
+	data[6] = LO(db);
+	data[7] = HI(db);
+
+	data[8] = (100 * rsat) >> 16;
+	data[9] = (100 * lsat) >> 16;
+
+	iforce_send_packet(iforce, FF_CMD_CONDITION, data);
+	iforce_dump_packet(iforce, "condition", FF_CMD_CONDITION, data);
+
+	return 0;
+}
+
+static unsigned char find_button(struct iforce *iforce, signed short button)
+{
+	int i;
+
+	for (i = 1; iforce->type->btn[i] >= 0; i++)
+		if (iforce->type->btn[i] == button)
+			return i + 1;
+	return 0;
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send an condition
+ * parameter packet
+ */
+static int need_condition_modifier(struct iforce *iforce,
+				   struct ff_effect *old,
+				   struct ff_effect *new)
+{
+	int ret = 0;
+	int i;
+
+	if (new->type != FF_SPRING && new->type != FF_FRICTION) {
+		dev_warn(&iforce->dev->dev, "bad effect type in %s\n",
+			 __func__);
+		return 0;
+	}
+
+	for (i = 0; i < 2; i++) {
+		ret |= old->u.condition[i].right_saturation != new->u.condition[i].right_saturation
+			|| old->u.condition[i].left_saturation != new->u.condition[i].left_saturation
+			|| old->u.condition[i].right_coeff != new->u.condition[i].right_coeff
+			|| old->u.condition[i].left_coeff != new->u.condition[i].left_coeff
+			|| old->u.condition[i].deadband != new->u.condition[i].deadband
+			|| old->u.condition[i].center != new->u.condition[i].center;
+	}
+	return ret;
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send a magnitude
+ * parameter packet
+ */
+static int need_magnitude_modifier(struct iforce *iforce,
+				   struct ff_effect *old,
+				   struct ff_effect *effect)
+{
+	if (effect->type != FF_CONSTANT) {
+		dev_warn(&iforce->dev->dev, "bad effect type in %s\n",
+			 __func__);
+		return 0;
+	}
+
+	return old->u.constant.level != effect->u.constant.level;
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send an envelope
+ * parameter packet
+ */
+static int need_envelope_modifier(struct iforce *iforce, struct ff_effect *old,
+				  struct ff_effect *effect)
+{
+	switch (effect->type) {
+	case FF_CONSTANT:
+		if (old->u.constant.envelope.attack_length != effect->u.constant.envelope.attack_length
+		|| old->u.constant.envelope.attack_level != effect->u.constant.envelope.attack_level
+		|| old->u.constant.envelope.fade_length != effect->u.constant.envelope.fade_length
+		|| old->u.constant.envelope.fade_level != effect->u.constant.envelope.fade_level)
+			return 1;
+		break;
+
+	case FF_PERIODIC:
+		if (old->u.periodic.envelope.attack_length != effect->u.periodic.envelope.attack_length
+		|| old->u.periodic.envelope.attack_level != effect->u.periodic.envelope.attack_level
+		|| old->u.periodic.envelope.fade_length != effect->u.periodic.envelope.fade_length
+		|| old->u.periodic.envelope.fade_level != effect->u.periodic.envelope.fade_level)
+			return 1;
+		break;
+
+	default:
+		dev_warn(&iforce->dev->dev, "bad effect type in %s\n",
+			 __func__);
+	}
+
+	return 0;
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send a periodic
+ * parameter effect
+ */
+static int need_period_modifier(struct iforce *iforce, struct ff_effect *old,
+				struct ff_effect *new)
+{
+	if (new->type != FF_PERIODIC) {
+		dev_warn(&iforce->dev->dev, "bad effect type in %s\n",
+			 __func__);
+		return 0;
+	}
+	return (old->u.periodic.period != new->u.periodic.period
+		|| old->u.periodic.magnitude != new->u.periodic.magnitude
+		|| old->u.periodic.offset != new->u.periodic.offset
+		|| old->u.periodic.phase != new->u.periodic.phase);
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send an effect
+ * packet
+ */
+static int need_core(struct ff_effect *old, struct ff_effect *new)
+{
+	if (old->direction != new->direction
+		|| old->trigger.button != new->trigger.button
+		|| old->trigger.interval != new->trigger.interval
+		|| old->replay.length != new->replay.length
+		|| old->replay.delay != new->replay.delay)
+		return 1;
+
+	return 0;
+}
+/*
+ * Send the part common to all effects to the device
+ */
+static int make_core(struct iforce* iforce, u16 id, u16 mod_id1, u16 mod_id2,
+	u8 effect_type, u8 axes, u16 duration, u16 delay, u16 button,
+	u16 interval, u16 direction)
+{
+	unsigned char data[14];
+
+	duration = TIME_SCALE(duration);
+	delay    = TIME_SCALE(delay);
+	interval = TIME_SCALE(interval);
+
+	data[0]  = LO(id);
+	data[1]  = effect_type;
+	data[2]  = LO(axes) | find_button(iforce, button);
+
+	data[3]  = LO(duration);
+	data[4]  = HI(duration);
+
+	data[5]  = HI(direction);
+
+	data[6]  = LO(interval);
+	data[7]  = HI(interval);
+
+	data[8]  = LO(mod_id1);
+	data[9]  = HI(mod_id1);
+	data[10] = LO(mod_id2);
+	data[11] = HI(mod_id2);
+
+	data[12] = LO(delay);
+	data[13] = HI(delay);
+
+	/* Stop effect */
+/*	iforce_control_playback(iforce, id, 0);*/
+
+	iforce_send_packet(iforce, FF_CMD_EFFECT, data);
+
+	/* If needed, restart effect */
+	if (test_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[id].flags)) {
+		/* BUG: perhaps we should replay n times, instead of 1. But we do not know n */
+		iforce_control_playback(iforce, id, 1);
+	}
+
+	return 0;
+}
+
+/*
+ * Upload a periodic effect to the device
+ * See also iforce_upload_constant.
+ */
+int iforce_upload_periodic(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
+{
+	u8 wave_code;
+	int core_id = effect->id;
+	struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
+	struct resource* mod1_chunk = &(iforce->core_effects[core_id].mod1_chunk);
+	struct resource* mod2_chunk = &(iforce->core_effects[core_id].mod2_chunk);
+	int param1_err = 1;
+	int param2_err = 1;
+	int core_err = 0;
+
+	if (!old || need_period_modifier(iforce, old, effect)) {
+		param1_err = make_period_modifier(iforce, mod1_chunk,
+			old != NULL,
+			effect->u.periodic.magnitude, effect->u.periodic.offset,
+			effect->u.periodic.period, effect->u.periodic.phase);
+		if (param1_err)
+			return param1_err;
+		set_bit(FF_MOD1_IS_USED, core_effect->flags);
+	}
+
+	if (!old || need_envelope_modifier(iforce, old, effect)) {
+		param2_err = make_envelope_modifier(iforce, mod2_chunk,
+			old !=NULL,
+			effect->u.periodic.envelope.attack_length,
+			effect->u.periodic.envelope.attack_level,
+			effect->u.periodic.envelope.fade_length,
+			effect->u.periodic.envelope.fade_level);
+		if (param2_err)
+			return param2_err;
+		set_bit(FF_MOD2_IS_USED, core_effect->flags);
+	}
+
+	switch (effect->u.periodic.waveform) {
+	case FF_SQUARE:		wave_code = 0x20; break;
+	case FF_TRIANGLE:	wave_code = 0x21; break;
+	case FF_SINE:		wave_code = 0x22; break;
+	case FF_SAW_UP:		wave_code = 0x23; break;
+	case FF_SAW_DOWN:	wave_code = 0x24; break;
+	default:		wave_code = 0x20; break;
+	}
+
+	if (!old || need_core(old, effect)) {
+		core_err = make_core(iforce, effect->id,
+			mod1_chunk->start,
+			mod2_chunk->start,
+			wave_code,
+			0x20,
+			effect->replay.length,
+			effect->replay.delay,
+			effect->trigger.button,
+			effect->trigger.interval,
+			effect->direction);
+	}
+
+	/* If one of the parameter creation failed, we already returned an
+	 * error code.
+	 * If the core creation failed, we return its error code.
+	 * Else: if one parameter at least was created, we return 0
+	 *       else we return 1;
+	 */
+	return core_err < 0 ? core_err : (param1_err && param2_err);
+}
+
+/*
+ * Upload a constant force effect
+ * Return value:
+ *  <0 Error code
+ *  0 Ok, effect created or updated
+ *  1 effect did not change since last upload, and no packet was therefore sent
+ */
+int iforce_upload_constant(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
+{
+	int core_id = effect->id;
+	struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
+	struct resource* mod1_chunk = &(iforce->core_effects[core_id].mod1_chunk);
+	struct resource* mod2_chunk = &(iforce->core_effects[core_id].mod2_chunk);
+	int param1_err = 1;
+	int param2_err = 1;
+	int core_err = 0;
+
+	if (!old || need_magnitude_modifier(iforce, old, effect)) {
+		param1_err = make_magnitude_modifier(iforce, mod1_chunk,
+			old != NULL,
+			effect->u.constant.level);
+		if (param1_err)
+			return param1_err;
+		set_bit(FF_MOD1_IS_USED, core_effect->flags);
+	}
+
+	if (!old || need_envelope_modifier(iforce, old, effect)) {
+		param2_err = make_envelope_modifier(iforce, mod2_chunk,
+			old != NULL,
+			effect->u.constant.envelope.attack_length,
+			effect->u.constant.envelope.attack_level,
+			effect->u.constant.envelope.fade_length,
+			effect->u.constant.envelope.fade_level);
+		if (param2_err)
+			return param2_err;
+		set_bit(FF_MOD2_IS_USED, core_effect->flags);
+	}
+
+	if (!old || need_core(old, effect)) {
+		core_err = make_core(iforce, effect->id,
+			mod1_chunk->start,
+			mod2_chunk->start,
+			0x00,
+			0x20,
+			effect->replay.length,
+			effect->replay.delay,
+			effect->trigger.button,
+			effect->trigger.interval,
+			effect->direction);
+	}
+
+	/* If one of the parameter creation failed, we already returned an
+	 * error code.
+	 * If the core creation failed, we return its error code.
+	 * Else: if one parameter at least was created, we return 0
+	 *       else we return 1;
+	 */
+	return core_err < 0 ? core_err : (param1_err && param2_err);
+}
+
+/*
+ * Upload an condition effect. Those are for example friction, inertia, springs...
+ */
+int iforce_upload_condition(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
+{
+	int core_id = effect->id;
+	struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
+	struct resource* mod1_chunk = &(core_effect->mod1_chunk);
+	struct resource* mod2_chunk = &(core_effect->mod2_chunk);
+	u8 type;
+	int param_err = 1;
+	int core_err = 0;
+
+	switch (effect->type) {
+	case FF_SPRING:	type = 0x40; break;
+	case FF_DAMPER:	type = 0x41; break;
+	default: return -1;
+	}
+
+	if (!old || need_condition_modifier(iforce, old, effect)) {
+		param_err = make_condition_modifier(iforce, mod1_chunk,
+			old != NULL,
+			effect->u.condition[0].right_saturation,
+			effect->u.condition[0].left_saturation,
+			effect->u.condition[0].right_coeff,
+			effect->u.condition[0].left_coeff,
+			effect->u.condition[0].deadband,
+			effect->u.condition[0].center);
+		if (param_err)
+			return param_err;
+		set_bit(FF_MOD1_IS_USED, core_effect->flags);
+
+		param_err = make_condition_modifier(iforce, mod2_chunk,
+			old != NULL,
+			effect->u.condition[1].right_saturation,
+			effect->u.condition[1].left_saturation,
+			effect->u.condition[1].right_coeff,
+			effect->u.condition[1].left_coeff,
+			effect->u.condition[1].deadband,
+			effect->u.condition[1].center);
+		if (param_err)
+			return param_err;
+		set_bit(FF_MOD2_IS_USED, core_effect->flags);
+
+	}
+
+	if (!old || need_core(old, effect)) {
+		core_err = make_core(iforce, effect->id,
+			mod1_chunk->start, mod2_chunk->start,
+			type, 0xc0,
+			effect->replay.length, effect->replay.delay,
+			effect->trigger.button, effect->trigger.interval,
+			effect->direction);
+	}
+
+	/* If the parameter creation failed, we already returned an
+	 * error code.
+	 * If the core creation failed, we return its error code.
+	 * Else: if a parameter  was created, we return 0
+	 *       else we return 1;
+	 */
+	return core_err < 0 ? core_err : param_err;
+}
diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c
new file mode 100644
index 000000000..84b87526b
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-main.c
@@ -0,0 +1,399 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ *  Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ *  USB/RS232 I-Force joysticks and wheels.
+ */
+
+#include <asm/unaligned.h>
+#include "iforce.h"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
+MODULE_DESCRIPTION("Core I-Force joysticks and wheels driver");
+MODULE_LICENSE("GPL");
+
+static signed short btn_joystick[] =
+{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
+  BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A,
+  BTN_B, BTN_C, BTN_DEAD, -1 };
+
+static signed short btn_joystick_avb[] =
+{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE,
+  BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_DEAD, -1 };
+
+static signed short btn_wheel[] =
+{ BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_BASE, BTN_BASE2, BTN_BASE3,
+  BTN_BASE4, BTN_BASE5, BTN_BASE6, -1 };
+
+static signed short abs_joystick[] =
+{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static signed short abs_joystick_rudder[] =
+{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static signed short abs_avb_pegasus[] =
+{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
+  ABS_HAT1X, ABS_HAT1Y, -1 };
+
+static signed short abs_wheel[] =
+{ ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static signed short ff_iforce[] =
+{ FF_PERIODIC, FF_CONSTANT, FF_SPRING, FF_DAMPER,
+  FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, FF_SAW_DOWN, FF_GAIN,
+  FF_AUTOCENTER, -1 };
+
+static struct iforce_device iforce_device[] = {
+	{ 0x044f, 0xa01c, "Thrustmaster Motor Sport GT",		btn_wheel, abs_wheel, ff_iforce },
+	{ 0x046d, 0xc281, "Logitech WingMan Force",			btn_joystick, abs_joystick, ff_iforce },
+	{ 0x046d, 0xc291, "Logitech WingMan Formula Force",		btn_wheel, abs_wheel, ff_iforce },
+	{ 0x05ef, 0x020a, "AVB Top Shot Pegasus",			btn_joystick_avb, abs_avb_pegasus, ff_iforce },
+	{ 0x05ef, 0x8884, "AVB Mag Turbo Force",			btn_wheel, abs_wheel, ff_iforce },
+	{ 0x05ef, 0x8886, "Boeder Force Feedback Wheel",		btn_wheel, abs_wheel, ff_iforce },
+	{ 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel",	btn_wheel, abs_wheel, ff_iforce }, //?
+	{ 0x061c, 0xc0a4, "ACT LABS Force RS",                          btn_wheel, abs_wheel, ff_iforce }, //?
+	{ 0x061c, 0xc084, "ACT LABS Force RS",				btn_wheel, abs_wheel, ff_iforce },
+	{ 0x06a3, 0xff04, "Saitek R440 Force Wheel",			btn_wheel, abs_wheel, ff_iforce }, //?
+	{ 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback",	btn_wheel, abs_wheel, ff_iforce }, //?
+	{ 0x06f8, 0x0001, "Guillemot Jet Leader Force Feedback",	btn_joystick, abs_joystick_rudder, ff_iforce },
+	{ 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel",	btn_wheel, abs_wheel, ff_iforce }, //?
+	{ 0x06f8, 0xa302, "Guillemot Jet Leader 3D",			btn_joystick, abs_joystick, ff_iforce }, //?
+	{ 0x06d6, 0x29bc, "Trust Force Feedback Race Master",		btn_wheel, abs_wheel, ff_iforce },
+	{ 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]",		btn_joystick, abs_joystick, ff_iforce }
+};
+
+static int iforce_playback(struct input_dev *dev, int effect_id, int value)
+{
+	struct iforce *iforce = input_get_drvdata(dev);
+	struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
+
+	if (value > 0)
+		set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
+	else
+		clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
+
+	iforce_control_playback(iforce, effect_id, value);
+	return 0;
+}
+
+static void iforce_set_gain(struct input_dev *dev, u16 gain)
+{
+	struct iforce *iforce = input_get_drvdata(dev);
+	unsigned char data[3];
+
+	data[0] = gain >> 9;
+	iforce_send_packet(iforce, FF_CMD_GAIN, data);
+}
+
+static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+	struct iforce *iforce = input_get_drvdata(dev);
+	unsigned char data[3];
+
+	data[0] = 0x03;
+	data[1] = magnitude >> 9;
+	iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
+
+	data[0] = 0x04;
+	data[1] = 0x01;
+	iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
+}
+
+/*
+ * Function called when an ioctl is performed on the event dev entry.
+ * It uploads an effect to the device
+ */
+static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
+{
+	struct iforce *iforce = input_get_drvdata(dev);
+	struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
+	int ret;
+
+	if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
+		/* Check the effect is not already being updated */
+		if (test_bit(FF_CORE_UPDATE, core_effect->flags))
+			return -EAGAIN;
+	}
+
+/*
+ * Upload the effect
+ */
+	switch (effect->type) {
+	case FF_PERIODIC:
+		ret = iforce_upload_periodic(iforce, effect, old);
+		break;
+
+	case FF_CONSTANT:
+		ret = iforce_upload_constant(iforce, effect, old);
+		break;
+
+	case FF_SPRING:
+	case FF_DAMPER:
+		ret = iforce_upload_condition(iforce, effect, old);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	if (ret == 0) {
+		/* A packet was sent, forbid new updates until we are notified
+		 * that the packet was updated
+		 */
+		set_bit(FF_CORE_UPDATE, core_effect->flags);
+	}
+	return ret;
+}
+
+/*
+ * Erases an effect: it frees the effect id and mark as unused the memory
+ * allocated for the parameters
+ */
+static int iforce_erase_effect(struct input_dev *dev, int effect_id)
+{
+	struct iforce *iforce = input_get_drvdata(dev);
+	struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
+	int err = 0;
+
+	if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
+		err = release_resource(&core_effect->mod1_chunk);
+
+	if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
+		err = release_resource(&core_effect->mod2_chunk);
+
+	/* TODO: remember to change that if more FF_MOD* bits are added */
+	core_effect->flags[0] = 0;
+
+	return err;
+}
+
+static int iforce_open(struct input_dev *dev)
+{
+	struct iforce *iforce = input_get_drvdata(dev);
+
+	iforce->xport_ops->start_io(iforce);
+
+	if (test_bit(EV_FF, dev->evbit)) {
+		/* Enable force feedback */
+		iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
+	}
+
+	return 0;
+}
+
+static void iforce_close(struct input_dev *dev)
+{
+	struct iforce *iforce = input_get_drvdata(dev);
+	int i;
+
+	if (test_bit(EV_FF, dev->evbit)) {
+		/* Check: no effects should be present in memory */
+		for (i = 0; i < dev->ff->max_effects; i++) {
+			if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
+				dev_warn(&dev->dev,
+					"%s: Device still owns effects\n",
+					__func__);
+				break;
+			}
+		}
+
+		/* Disable force feedback playback */
+		iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
+		/* Wait for the command to complete */
+		wait_event_interruptible(iforce->wait,
+			!test_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags));
+	}
+
+	iforce->xport_ops->stop_io(iforce);
+}
+
+int iforce_init_device(struct device *parent, u16 bustype,
+		       struct iforce *iforce)
+{
+	struct input_dev *input_dev;
+	struct ff_device *ff;
+	u8 c[] = "CEOV";
+	u8 buf[IFORCE_MAX_LENGTH];
+	size_t len;
+	int i, error;
+	int ff_effects = 0;
+
+	input_dev = input_allocate_device();
+	if (!input_dev)
+		return -ENOMEM;
+
+	init_waitqueue_head(&iforce->wait);
+	spin_lock_init(&iforce->xmit_lock);
+	mutex_init(&iforce->mem_mutex);
+	iforce->xmit.buf = iforce->xmit_data;
+	iforce->dev = input_dev;
+
+/*
+ * Input device fields.
+ */
+
+	input_dev->id.bustype = bustype;
+	input_dev->dev.parent = parent;
+
+	input_set_drvdata(input_dev, iforce);
+
+	input_dev->name = "Unknown I-Force device";
+	input_dev->open = iforce_open;
+	input_dev->close = iforce_close;
+
+/*
+ * On-device memory allocation.
+ */
+
+	iforce->device_memory.name = "I-Force device effect memory";
+	iforce->device_memory.start = 0;
+	iforce->device_memory.end = 200;
+	iforce->device_memory.flags = IORESOURCE_MEM;
+	iforce->device_memory.parent = NULL;
+	iforce->device_memory.child = NULL;
+	iforce->device_memory.sibling = NULL;
+
+/*
+ * Wait until device ready - until it sends its first response.
+ */
+
+	for (i = 0; i < 20; i++)
+		if (!iforce_get_id_packet(iforce, 'O', buf, &len))
+			break;
+
+	if (i == 20) { /* 5 seconds */
+		dev_err(&input_dev->dev,
+			"Timeout waiting for response from device.\n");
+		error = -ENODEV;
+		goto fail;
+	}
+
+/*
+ * Get device info.
+ */
+
+	if (!iforce_get_id_packet(iforce, 'M', buf, &len) && len >= 3)
+		input_dev->id.vendor = get_unaligned_le16(buf + 1);
+	else
+		dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n");
+
+	if (!iforce_get_id_packet(iforce, 'P', buf, &len) && len >= 3)
+		input_dev->id.product = get_unaligned_le16(buf + 1);
+	else
+		dev_warn(&iforce->dev->dev, "Device does not respond to id packet P\n");
+
+	if (!iforce_get_id_packet(iforce, 'B', buf, &len) && len >= 3)
+		iforce->device_memory.end = get_unaligned_le16(buf + 1);
+	else
+		dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n");
+
+	if (!iforce_get_id_packet(iforce, 'N', buf, &len) && len >= 2)
+		ff_effects = buf[1];
+	else
+		dev_warn(&iforce->dev->dev, "Device does not respond to id packet N\n");
+
+	/* Check if the device can store more effects than the driver can really handle */
+	if (ff_effects > IFORCE_EFFECTS_MAX) {
+		dev_warn(&iforce->dev->dev, "Limiting number of effects to %d (device reports %d)\n",
+		       IFORCE_EFFECTS_MAX, ff_effects);
+		ff_effects = IFORCE_EFFECTS_MAX;
+	}
+
+/*
+ * Display additional info.
+ */
+
+	for (i = 0; c[i]; i++)
+		if (!iforce_get_id_packet(iforce, c[i], buf, &len))
+			iforce_dump_packet(iforce, "info",
+					   (FF_CMD_QUERY & 0xff00) | len, buf);
+
+/*
+ * Disable spring, enable force feedback.
+ */
+	iforce_set_autocenter(input_dev, 0);
+
+/*
+ * Find appropriate device entry
+ */
+
+	for (i = 0; iforce_device[i].idvendor; i++)
+		if (iforce_device[i].idvendor == input_dev->id.vendor &&
+		    iforce_device[i].idproduct == input_dev->id.product)
+			break;
+
+	iforce->type = iforce_device + i;
+	input_dev->name = iforce->type->name;
+
+/*
+ * Set input device bitfields and ranges.
+ */
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
+		BIT_MASK(EV_FF_STATUS);
+
+	for (i = 0; iforce->type->btn[i] >= 0; i++)
+		set_bit(iforce->type->btn[i], input_dev->keybit);
+
+	for (i = 0; iforce->type->abs[i] >= 0; i++) {
+
+		signed short t = iforce->type->abs[i];
+
+		switch (t) {
+		case ABS_X:
+		case ABS_Y:
+		case ABS_WHEEL:
+			input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
+			set_bit(t, input_dev->ffbit);
+			break;
+
+		case ABS_THROTTLE:
+		case ABS_GAS:
+		case ABS_BRAKE:
+			input_set_abs_params(input_dev, t, 0, 255, 0, 0);
+			break;
+
+		case ABS_RUDDER:
+			input_set_abs_params(input_dev, t, -128, 127, 0, 0);
+			break;
+
+		case ABS_HAT0X:
+		case ABS_HAT0Y:
+		case ABS_HAT1X:
+		case ABS_HAT1Y:
+			input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+			break;
+		}
+	}
+
+	if (ff_effects) {
+
+		for (i = 0; iforce->type->ff[i] >= 0; i++)
+			set_bit(iforce->type->ff[i], input_dev->ffbit);
+
+		error = input_ff_create(input_dev, ff_effects);
+		if (error)
+			goto fail;
+
+		ff = input_dev->ff;
+		ff->upload = iforce_upload_effect;
+		ff->erase = iforce_erase_effect;
+		ff->set_gain = iforce_set_gain;
+		ff->set_autocenter = iforce_set_autocenter;
+		ff->playback = iforce_playback;
+	}
+/*
+ * Register input device.
+ */
+
+	error = input_register_device(iforce->dev);
+	if (error)
+		goto fail;
+
+	return 0;
+
+ fail:	input_free_device(input_dev);
+	return error;
+}
+EXPORT_SYMBOL(iforce_init_device);
diff --git a/drivers/input/joystick/iforce/iforce-packets.c b/drivers/input/joystick/iforce/iforce-packets.c
new file mode 100644
index 000000000..763642c8c
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-packets.c
@@ -0,0 +1,211 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ *  Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ *  USB/RS232 I-Force joysticks and wheels.
+ */
+
+#include <asm/unaligned.h>
+#include "iforce.h"
+
+static struct {
+	__s32 x;
+	__s32 y;
+} iforce_hat_to_axis[16] = {{ 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+
+void iforce_dump_packet(struct iforce *iforce, char *msg, u16 cmd, unsigned char *data)
+{
+	dev_dbg(iforce->dev->dev.parent, "%s %s cmd = %04x, data = %*ph\n",
+		__func__, msg, cmd, LO(cmd), data);
+}
+
+/*
+ * Send a packet of bytes to the device
+ */
+int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data)
+{
+	/* Copy data to buffer */
+	int n = LO(cmd);
+	int c;
+	int empty;
+	int head, tail;
+	unsigned long flags;
+
+/*
+ * Update head and tail of xmit buffer
+ */
+	spin_lock_irqsave(&iforce->xmit_lock, flags);
+
+	head = iforce->xmit.head;
+	tail = iforce->xmit.tail;
+
+
+	if (CIRC_SPACE(head, tail, XMIT_SIZE) < n+2) {
+		dev_warn(&iforce->dev->dev,
+			 "not enough space in xmit buffer to send new packet\n");
+		spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+		return -1;
+	}
+
+	empty = head == tail;
+	XMIT_INC(iforce->xmit.head, n+2);
+
+/*
+ * Store packet in xmit buffer
+ */
+	iforce->xmit.buf[head] = HI(cmd);
+	XMIT_INC(head, 1);
+	iforce->xmit.buf[head] = LO(cmd);
+	XMIT_INC(head, 1);
+
+	c = CIRC_SPACE_TO_END(head, tail, XMIT_SIZE);
+	if (n < c) c=n;
+
+	memcpy(&iforce->xmit.buf[head],
+	       data,
+	       c);
+	if (n != c) {
+		memcpy(&iforce->xmit.buf[0],
+		       data + c,
+		       n - c);
+	}
+	XMIT_INC(head, n);
+
+	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+/*
+ * If necessary, start the transmission
+ */
+	if (empty)
+		iforce->xport_ops->xmit(iforce);
+
+	return 0;
+}
+EXPORT_SYMBOL(iforce_send_packet);
+
+/* Start or stop an effect */
+int iforce_control_playback(struct iforce* iforce, u16 id, unsigned int value)
+{
+	unsigned char data[3];
+
+	data[0] = LO(id);
+	data[1] = (value > 0) ? ((value > 1) ? 0x41 : 0x01) : 0;
+	data[2] = LO(value);
+	return iforce_send_packet(iforce, FF_CMD_PLAY, data);
+}
+
+/* Mark an effect that was being updated as ready. That means it can be updated
+ * again */
+static int mark_core_as_ready(struct iforce *iforce, unsigned short addr)
+{
+	int i;
+
+	if (!iforce->dev->ff)
+		return 0;
+
+	for (i = 0; i < iforce->dev->ff->max_effects; ++i) {
+		if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
+		    (iforce->core_effects[i].mod1_chunk.start == addr ||
+		     iforce->core_effects[i].mod2_chunk.start == addr)) {
+			clear_bit(FF_CORE_UPDATE, iforce->core_effects[i].flags);
+			return 0;
+		}
+	}
+	dev_warn(&iforce->dev->dev, "unused effect %04x updated !!!\n", addr);
+	return -1;
+}
+
+static void iforce_report_hats_buttons(struct iforce *iforce, u8 *data)
+{
+	struct input_dev *dev = iforce->dev;
+	int i;
+
+	input_report_abs(dev, ABS_HAT0X, iforce_hat_to_axis[data[6] >> 4].x);
+	input_report_abs(dev, ABS_HAT0Y, iforce_hat_to_axis[data[6] >> 4].y);
+
+	for (i = 0; iforce->type->btn[i] >= 0; i++)
+		input_report_key(dev, iforce->type->btn[i],
+				 data[(i >> 3) + 5] & (1 << (i & 7)));
+
+	/* If there are untouched bits left, interpret them as the second hat */
+	if (i <= 8) {
+		u8 btns = data[6];
+
+		if (test_bit(ABS_HAT1X, dev->absbit)) {
+			if (btns & BIT(3))
+				input_report_abs(dev, ABS_HAT1X, -1);
+			else if (btns & BIT(1))
+				input_report_abs(dev, ABS_HAT1X, 1);
+			else
+				input_report_abs(dev, ABS_HAT1X, 0);
+		}
+
+		if (test_bit(ABS_HAT1Y, dev->absbit)) {
+			if (btns & BIT(0))
+				input_report_abs(dev, ABS_HAT1Y, -1);
+			else if (btns & BIT(2))
+				input_report_abs(dev, ABS_HAT1Y, 1);
+			else
+				input_report_abs(dev, ABS_HAT1Y, 0);
+		}
+	}
+}
+
+void iforce_process_packet(struct iforce *iforce,
+			   u8 packet_id, u8 *data, size_t len)
+{
+	struct input_dev *dev = iforce->dev;
+	int i, j;
+
+	switch (packet_id) {
+
+	case 0x01:	/* joystick position data */
+		input_report_abs(dev, ABS_X,
+				 (__s16) get_unaligned_le16(data));
+		input_report_abs(dev, ABS_Y,
+				 (__s16) get_unaligned_le16(data + 2));
+		input_report_abs(dev, ABS_THROTTLE, 255 - data[4]);
+
+		if (len >= 8 && test_bit(ABS_RUDDER ,dev->absbit))
+			input_report_abs(dev, ABS_RUDDER, (__s8)data[7]);
+
+		iforce_report_hats_buttons(iforce, data);
+
+		input_sync(dev);
+		break;
+
+	case 0x03:	/* wheel position data */
+		input_report_abs(dev, ABS_WHEEL,
+				 (__s16) get_unaligned_le16(data));
+		input_report_abs(dev, ABS_GAS,   255 - data[2]);
+		input_report_abs(dev, ABS_BRAKE, 255 - data[3]);
+
+		iforce_report_hats_buttons(iforce, data);
+
+		input_sync(dev);
+		break;
+
+	case 0x02:	/* status report */
+		input_report_key(dev, BTN_DEAD, data[0] & 0x02);
+		input_sync(dev);
+
+		/* Check if an effect was just started or stopped */
+		i = data[1] & 0x7f;
+		if (data[1] & 0x80) {
+			if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
+				/* Report play event */
+				input_report_ff_status(dev, i, FF_STATUS_PLAYING);
+			}
+		} else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
+			/* Report stop event */
+			input_report_ff_status(dev, i, FF_STATUS_STOPPED);
+		}
+
+		for (j = 3; j < len; j += 2)
+			mark_core_as_ready(iforce, get_unaligned_le16(data + j));
+
+		break;
+	}
+}
+EXPORT_SYMBOL(iforce_process_packet);
diff --git a/drivers/input/joystick/iforce/iforce-serio.c b/drivers/input/joystick/iforce/iforce-serio.c
new file mode 100644
index 000000000..2380546d7
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-serio.c
@@ -0,0 +1,257 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 2000-2001 Vojtech Pavlik <vojtech@ucw.cz>
+ *  Copyright (c) 2001, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ *  USB/RS232 I-Force joysticks and wheels.
+ */
+
+#include <linux/serio.h>
+#include "iforce.h"
+
+struct iforce_serio {
+	struct iforce iforce;
+
+	struct serio *serio;
+	int idx, pkt, len, id;
+	u8 csum;
+	u8 expect_packet;
+	u8 cmd_response[IFORCE_MAX_LENGTH];
+	u8 cmd_response_len;
+	u8 data_in[IFORCE_MAX_LENGTH];
+};
+
+static void iforce_serio_xmit(struct iforce *iforce)
+{
+	struct iforce_serio *iforce_serio = container_of(iforce,
+							 struct iforce_serio,
+							 iforce);
+	unsigned char cs;
+	int i;
+	unsigned long flags;
+
+	if (test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags)) {
+		set_bit(IFORCE_XMIT_AGAIN, iforce->xmit_flags);
+		return;
+	}
+
+	spin_lock_irqsave(&iforce->xmit_lock, flags);
+
+again:
+	if (iforce->xmit.head == iforce->xmit.tail) {
+		iforce_clear_xmit_and_wake(iforce);
+		spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+		return;
+	}
+
+	cs = 0x2b;
+
+	serio_write(iforce_serio->serio, 0x2b);
+
+	serio_write(iforce_serio->serio, iforce->xmit.buf[iforce->xmit.tail]);
+	cs ^= iforce->xmit.buf[iforce->xmit.tail];
+	XMIT_INC(iforce->xmit.tail, 1);
+
+	for (i=iforce->xmit.buf[iforce->xmit.tail]; i >= 0; --i) {
+		serio_write(iforce_serio->serio,
+			    iforce->xmit.buf[iforce->xmit.tail]);
+		cs ^= iforce->xmit.buf[iforce->xmit.tail];
+		XMIT_INC(iforce->xmit.tail, 1);
+	}
+
+	serio_write(iforce_serio->serio, cs);
+
+	if (test_and_clear_bit(IFORCE_XMIT_AGAIN, iforce->xmit_flags))
+		goto again;
+
+	iforce_clear_xmit_and_wake(iforce);
+
+	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+}
+
+static int iforce_serio_get_id(struct iforce *iforce, u8 id,
+			       u8 *response_data, size_t *response_len)
+{
+	struct iforce_serio *iforce_serio = container_of(iforce,
+							 struct iforce_serio,
+							 iforce);
+
+	iforce_serio->expect_packet = HI(FF_CMD_QUERY);
+	iforce_serio->cmd_response_len = 0;
+
+	iforce_send_packet(iforce, FF_CMD_QUERY, &id);
+
+	wait_event_interruptible_timeout(iforce->wait,
+					 !iforce_serio->expect_packet, HZ);
+
+	if (iforce_serio->expect_packet) {
+		iforce_serio->expect_packet = 0;
+		return -ETIMEDOUT;
+	}
+
+	if (iforce_serio->cmd_response[0] != id)
+		return -EIO;
+
+	memcpy(response_data, iforce_serio->cmd_response,
+	       iforce_serio->cmd_response_len);
+	*response_len = iforce_serio->cmd_response_len;
+
+	return 0;
+}
+
+static int iforce_serio_start_io(struct iforce *iforce)
+{
+	/* No special handling required */
+	return 0;
+}
+
+static void iforce_serio_stop_io(struct iforce *iforce)
+{
+	//TODO: Wait for the last packets to be sent
+}
+
+static const struct iforce_xport_ops iforce_serio_xport_ops = {
+	.xmit		= iforce_serio_xmit,
+	.get_id		= iforce_serio_get_id,
+	.start_io	= iforce_serio_start_io,
+	.stop_io	= iforce_serio_stop_io,
+};
+
+static void iforce_serio_write_wakeup(struct serio *serio)
+{
+	struct iforce *iforce = serio_get_drvdata(serio);
+
+	iforce_serio_xmit(iforce);
+}
+
+static irqreturn_t iforce_serio_irq(struct serio *serio,
+				    unsigned char data, unsigned int flags)
+{
+	struct iforce_serio *iforce_serio = serio_get_drvdata(serio);
+	struct iforce *iforce = &iforce_serio->iforce;
+
+	if (!iforce_serio->pkt) {
+		if (data == 0x2b)
+			iforce_serio->pkt = 1;
+		goto out;
+	}
+
+	if (!iforce_serio->id) {
+		if (data > 3 && data != 0xff)
+			iforce_serio->pkt = 0;
+		else
+			iforce_serio->id = data;
+		goto out;
+	}
+
+	if (!iforce_serio->len) {
+		if (data > IFORCE_MAX_LENGTH) {
+			iforce_serio->pkt = 0;
+			iforce_serio->id = 0;
+		} else {
+			iforce_serio->len = data;
+		}
+		goto out;
+	}
+
+	if (iforce_serio->idx < iforce_serio->len) {
+		iforce_serio->data_in[iforce_serio->idx++] = data;
+		iforce_serio->csum += data;
+		goto out;
+	}
+
+	if (iforce_serio->idx == iforce_serio->len) {
+		/* Handle command completion */
+		if (iforce_serio->expect_packet == iforce_serio->id) {
+			iforce_serio->expect_packet = 0;
+			memcpy(iforce_serio->cmd_response,
+			       iforce_serio->data_in, IFORCE_MAX_LENGTH);
+			iforce_serio->cmd_response_len = iforce_serio->len;
+
+			/* Signal that command is done */
+			wake_up_all(&iforce->wait);
+		} else if (likely(iforce->type)) {
+			iforce_process_packet(iforce, iforce_serio->id,
+					      iforce_serio->data_in,
+					      iforce_serio->len);
+		}
+
+		iforce_serio->pkt = 0;
+		iforce_serio->id  = 0;
+		iforce_serio->len = 0;
+		iforce_serio->idx = 0;
+		iforce_serio->csum = 0;
+	}
+out:
+	return IRQ_HANDLED;
+}
+
+static int iforce_serio_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct iforce_serio *iforce_serio;
+	int err;
+
+	iforce_serio = kzalloc(sizeof(*iforce_serio), GFP_KERNEL);
+	if (!iforce_serio)
+		return -ENOMEM;
+
+	iforce_serio->iforce.xport_ops = &iforce_serio_xport_ops;
+
+	iforce_serio->serio = serio;
+	serio_set_drvdata(serio, iforce_serio);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail1;
+
+	err = iforce_init_device(&serio->dev, BUS_RS232, &iforce_serio->iforce);
+	if (err)
+		goto fail2;
+
+	return 0;
+
+ fail2:	serio_close(serio);
+ fail1:	serio_set_drvdata(serio, NULL);
+	kfree(iforce_serio);
+	return err;
+}
+
+static void iforce_serio_disconnect(struct serio *serio)
+{
+	struct iforce_serio *iforce_serio = serio_get_drvdata(serio);
+
+	input_unregister_device(iforce_serio->iforce.dev);
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	kfree(iforce_serio);
+}
+
+static const struct serio_device_id iforce_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_IFORCE,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, iforce_serio_ids);
+
+struct serio_driver iforce_serio_drv = {
+	.driver		= {
+		.name	= "iforce",
+	},
+	.description	= "RS232 I-Force joysticks and wheels driver",
+	.id_table	= iforce_serio_ids,
+	.write_wakeup	= iforce_serio_write_wakeup,
+	.interrupt	= iforce_serio_irq,
+	.connect	= iforce_serio_connect,
+	.disconnect	= iforce_serio_disconnect,
+};
+
+module_serio_driver(iforce_serio_drv);
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
+MODULE_DESCRIPTION("RS232 I-Force joysticks and wheels driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c
new file mode 100644
index 000000000..cba92bd59
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-usb.c
@@ -0,0 +1,299 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+ /*
+ *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ *  Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ *  USB/RS232 I-Force joysticks and wheels.
+ */
+
+#include <linux/usb.h>
+#include "iforce.h"
+
+struct iforce_usb {
+	struct iforce iforce;
+
+	struct usb_device *usbdev;
+	struct usb_interface *intf;
+	struct urb *irq, *out;
+
+	u8 data_in[IFORCE_MAX_LENGTH] ____cacheline_aligned;
+	u8 data_out[IFORCE_MAX_LENGTH] ____cacheline_aligned;
+};
+
+static void __iforce_usb_xmit(struct iforce *iforce)
+{
+	struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+						     iforce);
+	int n, c;
+	unsigned long flags;
+
+	spin_lock_irqsave(&iforce->xmit_lock, flags);
+
+	if (iforce->xmit.head == iforce->xmit.tail) {
+		iforce_clear_xmit_and_wake(iforce);
+		spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+		return;
+	}
+
+	((char *)iforce_usb->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
+	XMIT_INC(iforce->xmit.tail, 1);
+	n = iforce->xmit.buf[iforce->xmit.tail];
+	XMIT_INC(iforce->xmit.tail, 1);
+
+	iforce_usb->out->transfer_buffer_length = n + 1;
+	iforce_usb->out->dev = iforce_usb->usbdev;
+
+	/* Copy rest of data then */
+	c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
+	if (n < c) c=n;
+
+	memcpy(iforce_usb->out->transfer_buffer + 1,
+	       &iforce->xmit.buf[iforce->xmit.tail],
+	       c);
+	if (n != c) {
+		memcpy(iforce_usb->out->transfer_buffer + 1 + c,
+		       &iforce->xmit.buf[0],
+		       n-c);
+	}
+	XMIT_INC(iforce->xmit.tail, n);
+
+	if ( (n=usb_submit_urb(iforce_usb->out, GFP_ATOMIC)) ) {
+		dev_warn(&iforce_usb->intf->dev,
+			 "usb_submit_urb failed %d\n", n);
+		iforce_clear_xmit_and_wake(iforce);
+	}
+
+	/* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
+	 * As long as the urb completion handler is not called, the transmiting
+	 * is considered to be running */
+	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+}
+
+static void iforce_usb_xmit(struct iforce *iforce)
+{
+	if (!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags))
+		__iforce_usb_xmit(iforce);
+}
+
+static int iforce_usb_get_id(struct iforce *iforce, u8 id,
+			     u8 *response_data, size_t *response_len)
+{
+	struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+						     iforce);
+	u8 *buf;
+	int status;
+
+	buf = kmalloc(IFORCE_MAX_LENGTH, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	status = usb_control_msg(iforce_usb->usbdev,
+				 usb_rcvctrlpipe(iforce_usb->usbdev, 0),
+				 id,
+				 USB_TYPE_VENDOR | USB_DIR_IN |
+					USB_RECIP_INTERFACE,
+				 0, 0, buf, IFORCE_MAX_LENGTH, 1000);
+	if (status < 0) {
+		dev_err(&iforce_usb->intf->dev,
+			"usb_submit_urb failed: %d\n", status);
+	} else if (buf[0] != id) {
+		status = -EIO;
+	} else {
+		memcpy(response_data, buf, status);
+		*response_len = status;
+		status = 0;
+	}
+
+	kfree(buf);
+	return status;
+}
+
+static int iforce_usb_start_io(struct iforce *iforce)
+{
+	struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+						     iforce);
+
+	if (usb_submit_urb(iforce_usb->irq, GFP_KERNEL))
+		return -EIO;
+
+	return 0;
+}
+
+static void iforce_usb_stop_io(struct iforce *iforce)
+{
+	struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+						     iforce);
+
+	usb_kill_urb(iforce_usb->irq);
+	usb_kill_urb(iforce_usb->out);
+}
+
+static const struct iforce_xport_ops iforce_usb_xport_ops = {
+	.xmit		= iforce_usb_xmit,
+	.get_id		= iforce_usb_get_id,
+	.start_io	= iforce_usb_start_io,
+	.stop_io	= iforce_usb_stop_io,
+};
+
+static void iforce_usb_irq(struct urb *urb)
+{
+	struct iforce_usb *iforce_usb = urb->context;
+	struct iforce *iforce = &iforce_usb->iforce;
+	struct device *dev = &iforce_usb->intf->dev;
+	int status;
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
+			__func__, urb->status);
+		return;
+	default:
+		dev_dbg(dev, "%s - urb has status of: %d\n",
+			__func__, urb->status);
+		goto exit;
+	}
+
+	iforce_process_packet(iforce, iforce_usb->data_in[0],
+			      iforce_usb->data_in + 1, urb->actual_length - 1);
+
+exit:
+	status = usb_submit_urb(urb, GFP_ATOMIC);
+	if (status)
+		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
+			__func__, status);
+}
+
+static void iforce_usb_out(struct urb *urb)
+{
+	struct iforce_usb *iforce_usb = urb->context;
+	struct iforce *iforce = &iforce_usb->iforce;
+
+	if (urb->status) {
+		dev_dbg(&iforce_usb->intf->dev, "urb->status %d, exiting\n",
+			urb->status);
+		iforce_clear_xmit_and_wake(iforce);
+		return;
+	}
+
+	__iforce_usb_xmit(iforce);
+
+	wake_up_all(&iforce->wait);
+}
+
+static int iforce_usb_probe(struct usb_interface *intf,
+				const struct usb_device_id *id)
+{
+	struct usb_device *dev = interface_to_usbdev(intf);
+	struct usb_host_interface *interface;
+	struct usb_endpoint_descriptor *epirq, *epout;
+	struct iforce_usb *iforce_usb;
+	int err = -ENOMEM;
+
+	interface = intf->cur_altsetting;
+
+	if (interface->desc.bNumEndpoints < 2)
+		return -ENODEV;
+
+	epirq = &interface->endpoint[0].desc;
+	if (!usb_endpoint_is_int_in(epirq))
+		return -ENODEV;
+
+	epout = &interface->endpoint[1].desc;
+	if (!usb_endpoint_is_int_out(epout))
+		return -ENODEV;
+
+	iforce_usb = kzalloc(sizeof(*iforce_usb), GFP_KERNEL);
+	if (!iforce_usb)
+		goto fail;
+
+	iforce_usb->irq = usb_alloc_urb(0, GFP_KERNEL);
+	if (!iforce_usb->irq)
+		goto fail;
+
+	iforce_usb->out = usb_alloc_urb(0, GFP_KERNEL);
+	if (!iforce_usb->out)
+		goto fail;
+
+	iforce_usb->iforce.xport_ops = &iforce_usb_xport_ops;
+
+	iforce_usb->usbdev = dev;
+	iforce_usb->intf = intf;
+
+	usb_fill_int_urb(iforce_usb->irq, dev,
+			 usb_rcvintpipe(dev, epirq->bEndpointAddress),
+			 iforce_usb->data_in, sizeof(iforce_usb->data_in),
+			 iforce_usb_irq, iforce_usb, epirq->bInterval);
+
+	usb_fill_int_urb(iforce_usb->out, dev,
+			 usb_sndintpipe(dev, epout->bEndpointAddress),
+			 iforce_usb->data_out, sizeof(iforce_usb->data_out),
+			 iforce_usb_out, iforce_usb, epout->bInterval);
+
+	err = iforce_init_device(&intf->dev, BUS_USB, &iforce_usb->iforce);
+	if (err)
+		goto fail;
+
+	usb_set_intfdata(intf, iforce_usb);
+	return 0;
+
+fail:
+	if (iforce_usb) {
+		usb_free_urb(iforce_usb->irq);
+		usb_free_urb(iforce_usb->out);
+		kfree(iforce_usb);
+	}
+
+	return err;
+}
+
+static void iforce_usb_disconnect(struct usb_interface *intf)
+{
+	struct iforce_usb *iforce_usb = usb_get_intfdata(intf);
+
+	usb_set_intfdata(intf, NULL);
+
+	input_unregister_device(iforce_usb->iforce.dev);
+
+	usb_free_urb(iforce_usb->irq);
+	usb_free_urb(iforce_usb->out);
+
+	kfree(iforce_usb);
+}
+
+static const struct usb_device_id iforce_usb_ids[] = {
+	{ USB_DEVICE(0x044f, 0xa01c) },		/* Thrustmaster Motor Sport GT */
+	{ USB_DEVICE(0x046d, 0xc281) },		/* Logitech WingMan Force */
+	{ USB_DEVICE(0x046d, 0xc291) },		/* Logitech WingMan Formula Force */
+	{ USB_DEVICE(0x05ef, 0x020a) },		/* AVB Top Shot Pegasus */
+	{ USB_DEVICE(0x05ef, 0x8884) },		/* AVB Mag Turbo Force */
+	{ USB_DEVICE(0x05ef, 0x8888) },		/* AVB Top Shot FFB Racing Wheel */
+	{ USB_DEVICE(0x061c, 0xc0a4) },         /* ACT LABS Force RS */
+	{ USB_DEVICE(0x061c, 0xc084) },         /* ACT LABS Force RS */
+	{ USB_DEVICE(0x06a3, 0xff04) },		/* Saitek R440 Force Wheel */
+	{ USB_DEVICE(0x06f8, 0x0001) },		/* Guillemot Race Leader Force Feedback */
+	{ USB_DEVICE(0x06f8, 0x0003) },		/* Guillemot Jet Leader Force Feedback */
+	{ USB_DEVICE(0x06f8, 0x0004) },		/* Guillemot Force Feedback Racing Wheel */
+	{ USB_DEVICE(0x06f8, 0xa302) },		/* Guillemot Jet Leader 3D */
+	{ }					/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, iforce_usb_ids);
+
+struct usb_driver iforce_usb_driver = {
+	.name =		"iforce",
+	.probe =	iforce_usb_probe,
+	.disconnect =	iforce_usb_disconnect,
+	.id_table =	iforce_usb_ids,
+};
+
+module_usb_driver(iforce_usb_driver);
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
+MODULE_DESCRIPTION("USB I-Force joysticks and wheels driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/joystick/iforce/iforce.h b/drivers/input/joystick/iforce/iforce.h
new file mode 100644
index 000000000..9ccb9107c
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce.h
@@ -0,0 +1,147 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ *  Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ *  USB/RS232 I-Force joysticks and wheels.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/circ_buf.h>
+#include <linux/mutex.h>
+
+/* This module provides arbitrary resource management routines.
+ * I use it to manage the device's memory.
+ * Despite the name of this module, I am *not* going to access the ioports.
+ */
+#include <linux/ioport.h>
+
+
+#define IFORCE_MAX_LENGTH	16
+
+#define IFORCE_EFFECTS_MAX	32
+
+/* Each force feedback effect is made of one core effect, which can be
+ * associated to at most to effect modifiers
+ */
+#define FF_MOD1_IS_USED		0
+#define FF_MOD2_IS_USED		1
+#define FF_CORE_IS_USED		2
+#define FF_CORE_IS_PLAYED	3	/* Effect is currently being played */
+#define FF_CORE_SHOULD_PLAY	4	/* User wants the effect to be played */
+#define FF_CORE_UPDATE		5	/* Effect is being updated */
+#define FF_MODCORE_CNT		6
+
+struct iforce_core_effect {
+	/* Information about where modifiers are stored in the device's memory */
+	struct resource mod1_chunk;
+	struct resource mod2_chunk;
+	unsigned long flags[BITS_TO_LONGS(FF_MODCORE_CNT)];
+};
+
+#define FF_CMD_EFFECT		0x010e
+#define FF_CMD_ENVELOPE		0x0208
+#define FF_CMD_MAGNITUDE	0x0303
+#define FF_CMD_PERIOD		0x0407
+#define FF_CMD_CONDITION	0x050a
+
+#define FF_CMD_AUTOCENTER	0x4002
+#define FF_CMD_PLAY		0x4103
+#define FF_CMD_ENABLE		0x4201
+#define FF_CMD_GAIN		0x4301
+
+#define FF_CMD_QUERY		0xff01
+
+/* Buffer for async write */
+#define XMIT_SIZE		256
+#define XMIT_INC(var, n)	(var)+=n; (var)&= XMIT_SIZE -1
+/* iforce::xmit_flags */
+#define IFORCE_XMIT_RUNNING	0
+#define IFORCE_XMIT_AGAIN	1
+
+struct iforce_device {
+	u16 idvendor;
+	u16 idproduct;
+	char *name;
+	signed short *btn;
+	signed short *abs;
+	signed short *ff;
+};
+
+struct iforce;
+
+struct iforce_xport_ops {
+	void (*xmit)(struct iforce *iforce);
+	int (*get_id)(struct iforce *iforce, u8 id,
+		      u8 *response_data, size_t *response_len);
+	int (*start_io)(struct iforce *iforce);
+	void (*stop_io)(struct iforce *iforce);
+};
+
+struct iforce {
+	struct input_dev *dev;		/* Input device interface */
+	struct iforce_device *type;
+	const struct iforce_xport_ops *xport_ops;
+
+	spinlock_t xmit_lock;
+	/* Buffer used for asynchronous sending of bytes to the device */
+	struct circ_buf xmit;
+	unsigned char xmit_data[XMIT_SIZE];
+	unsigned long xmit_flags[1];
+
+					/* Force Feedback */
+	wait_queue_head_t wait;
+	struct resource device_memory;
+	struct iforce_core_effect core_effects[IFORCE_EFFECTS_MAX];
+	struct mutex mem_mutex;
+};
+
+/* Get hi and low bytes of a 16-bits int */
+#define HI(a)	((unsigned char)((a) >> 8))
+#define LO(a)	((unsigned char)((a) & 0xff))
+
+/* For many parameters, it seems that 0x80 is a special value that should
+ * be avoided. Instead, we replace this value by 0x7f
+ */
+#define HIFIX80(a) ((unsigned char)(((a)<0? (a)+255 : (a))>>8))
+
+/* Encode a time value */
+#define TIME_SCALE(a)	(a)
+
+static inline int iforce_get_id_packet(struct iforce *iforce, u8 id,
+				       u8 *response_data, size_t *response_len)
+{
+	return iforce->xport_ops->get_id(iforce, id,
+					 response_data, response_len);
+}
+
+static inline void iforce_clear_xmit_and_wake(struct iforce *iforce)
+{
+	clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
+	wake_up_all(&iforce->wait);
+}
+
+/* Public functions */
+/* iforce-main.c */
+int iforce_init_device(struct device *parent, u16 bustype,
+		       struct iforce *iforce);
+
+/* iforce-packets.c */
+int iforce_control_playback(struct iforce*, u16 id, unsigned int);
+void iforce_process_packet(struct iforce *iforce,
+			   u8 packet_id, u8 *data, size_t len);
+int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data);
+void iforce_dump_packet(struct iforce *iforce, char *msg, u16 cmd, unsigned char *data);
+
+/* iforce-ff.c */
+int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *);
+int iforce_upload_constant(struct iforce *, struct ff_effect *, struct ff_effect *);
+int iforce_upload_condition(struct iforce *, struct ff_effect *, struct ff_effect *);
+
+/* Public variables */
+extern struct serio_driver iforce_serio_drv;
+extern struct usb_driver iforce_usb_driver;
diff --git a/drivers/input/joystick/interact.c b/drivers/input/joystick/interact.c
new file mode 100644
index 000000000..03a9f0829
--- /dev/null
+++ b/drivers/input/joystick/interact.c
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *	Toby Deshane
+ */
+
+/*
+ * InterAct digital gamepad/joystick driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"InterAct digital joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define INTERACT_MAX_START	600	/* 400 us */
+#define INTERACT_MAX_STROBE	60	/* 40 us */
+#define INTERACT_MAX_LENGTH	32	/* 32 bits */
+
+#define INTERACT_TYPE_HHFX	0	/* HammerHead/FX */
+#define INTERACT_TYPE_PP8D	1	/* ProPad 8 */
+
+struct interact {
+	struct gameport *gameport;
+	struct input_dev *dev;
+	int bads;
+	int reads;
+	unsigned char type;
+	unsigned char length;
+	char phys[32];
+};
+
+static short interact_abs_hhfx[] =
+	{ ABS_RX, ABS_RY, ABS_X, ABS_Y, ABS_HAT0X, ABS_HAT0Y, -1 };
+static short interact_abs_pp8d[] =
+	{ ABS_X, ABS_Y, -1 };
+
+static short interact_btn_hhfx[] =
+	{ BTN_TR, BTN_X, BTN_Y, BTN_Z, BTN_A, BTN_B, BTN_C, BTN_TL, BTN_TL2, BTN_TR2, BTN_MODE, BTN_SELECT, -1 };
+static short interact_btn_pp8d[] =
+	{ BTN_C, BTN_TL, BTN_TR, BTN_A, BTN_B, BTN_Y, BTN_Z, BTN_X, -1 };
+
+struct interact_type {
+	int id;
+	short *abs;
+	short *btn;
+	char *name;
+	unsigned char length;
+	unsigned char b8;
+};
+
+static struct interact_type interact_type[] = {
+	{ 0x6202, interact_abs_hhfx, interact_btn_hhfx, "InterAct HammerHead/FX",    32, 4 },
+	{ 0x53f8, interact_abs_pp8d, interact_btn_pp8d, "InterAct ProPad 8 Digital", 16, 0 },
+	{ 0 }};
+
+/*
+ * interact_read_packet() reads and InterAct joystick data.
+ */
+
+static int interact_read_packet(struct gameport *gameport, int length, u32 *data)
+{
+	unsigned long flags;
+	unsigned char u, v;
+	unsigned int t, s;
+	int i;
+
+	i = 0;
+	data[0] = data[1] = data[2] = 0;
+	t = gameport_time(gameport, INTERACT_MAX_START);
+	s = gameport_time(gameport, INTERACT_MAX_STROBE);
+
+	local_irq_save(flags);
+	gameport_trigger(gameport);
+	v = gameport_read(gameport);
+
+	while (t > 0 && i < length) {
+		t--;
+		u = v; v = gameport_read(gameport);
+		if (v & ~u & 0x40) {
+			data[0] = (data[0] << 1) | ((v >> 4) & 1);
+			data[1] = (data[1] << 1) | ((v >> 5) & 1);
+			data[2] = (data[2] << 1) | ((v >> 7) & 1);
+			i++;
+			t = s;
+		}
+	}
+
+	local_irq_restore(flags);
+
+	return i;
+}
+
+/*
+ * interact_poll() reads and analyzes InterAct joystick data.
+ */
+
+static void interact_poll(struct gameport *gameport)
+{
+	struct interact *interact = gameport_get_drvdata(gameport);
+	struct input_dev *dev = interact->dev;
+	u32 data[3];
+	int i;
+
+	interact->reads++;
+
+	if (interact_read_packet(interact->gameport, interact->length, data) < interact->length) {
+		interact->bads++;
+	} else {
+
+		for (i = 0; i < 3; i++)
+			data[i] <<= INTERACT_MAX_LENGTH - interact->length;
+
+		switch (interact->type) {
+
+			case INTERACT_TYPE_HHFX:
+
+				for (i = 0; i < 4; i++)
+					input_report_abs(dev, interact_abs_hhfx[i], (data[i & 1] >> ((i >> 1) << 3)) & 0xff);
+
+				for (i = 0; i < 2; i++)
+					input_report_abs(dev, ABS_HAT0Y - i,
+						((data[1] >> ((i << 1) + 17)) & 1)  - ((data[1] >> ((i << 1) + 16)) & 1));
+
+				for (i = 0; i < 8; i++)
+					input_report_key(dev, interact_btn_hhfx[i], (data[0] >> (i + 16)) & 1);
+
+				for (i = 0; i < 4; i++)
+					input_report_key(dev, interact_btn_hhfx[i + 8], (data[1] >> (i + 20)) & 1);
+
+				break;
+
+			case INTERACT_TYPE_PP8D:
+
+				for (i = 0; i < 2; i++)
+					input_report_abs(dev, interact_abs_pp8d[i],
+						((data[0] >> ((i << 1) + 20)) & 1)  - ((data[0] >> ((i << 1) + 21)) & 1));
+
+				for (i = 0; i < 8; i++)
+					input_report_key(dev, interact_btn_pp8d[i], (data[1] >> (i + 16)) & 1);
+
+				break;
+		}
+	}
+
+	input_sync(dev);
+}
+
+/*
+ * interact_open() is a callback from the input open routine.
+ */
+
+static int interact_open(struct input_dev *dev)
+{
+	struct interact *interact = input_get_drvdata(dev);
+
+	gameport_start_polling(interact->gameport);
+	return 0;
+}
+
+/*
+ * interact_close() is a callback from the input close routine.
+ */
+
+static void interact_close(struct input_dev *dev)
+{
+	struct interact *interact = input_get_drvdata(dev);
+
+	gameport_stop_polling(interact->gameport);
+}
+
+/*
+ * interact_connect() probes for InterAct joysticks.
+ */
+
+static int interact_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct interact *interact;
+	struct input_dev *input_dev;
+	__u32 data[3];
+	int i, t;
+	int err;
+
+	interact = kzalloc(sizeof(struct interact), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!interact || !input_dev) {
+		err = -ENOMEM;
+		goto fail1;
+	}
+
+	interact->gameport = gameport;
+	interact->dev = input_dev;
+
+	gameport_set_drvdata(gameport, interact);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	i = interact_read_packet(gameport, INTERACT_MAX_LENGTH * 2, data);
+
+	if (i != 32 || (data[0] >> 24) != 0x0c || (data[1] >> 24) != 0x02) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	for (i = 0; interact_type[i].length; i++)
+		if (interact_type[i].id == (data[2] >> 16))
+			break;
+
+	if (!interact_type[i].length) {
+		printk(KERN_WARNING "interact.c: Unknown joystick on %s. [len %d d0 %08x d1 %08x i2 %08x]\n",
+			gameport->phys, i, data[0], data[1], data[2]);
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	gameport_set_poll_handler(gameport, interact_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	snprintf(interact->phys, sizeof(interact->phys), "%s/input0", gameport->phys);
+
+	interact->type = i;
+	interact->length = interact_type[i].length;
+
+	input_dev->name = interact_type[i].name;
+	input_dev->phys = interact->phys;
+	input_dev->id.bustype = BUS_GAMEPORT;
+	input_dev->id.vendor = GAMEPORT_ID_VENDOR_INTERACT;
+	input_dev->id.product = interact_type[i].id;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &gameport->dev;
+
+	input_set_drvdata(input_dev, interact);
+
+	input_dev->open = interact_open;
+	input_dev->close = interact_close;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	for (i = 0; (t = interact_type[interact->type].abs[i]) >= 0; i++) {
+		if (i < interact_type[interact->type].b8)
+			input_set_abs_params(input_dev, t, 0, 255, 0, 0);
+		else
+			input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+	}
+
+	for (i = 0; (t = interact_type[interact->type].btn[i]) >= 0; i++)
+		__set_bit(t, input_dev->keybit);
+
+	err = input_register_device(interact->dev);
+	if (err)
+		goto fail2;
+
+	return 0;
+
+fail2:	gameport_close(gameport);
+fail1:  gameport_set_drvdata(gameport, NULL);
+	input_free_device(input_dev);
+	kfree(interact);
+	return err;
+}
+
+static void interact_disconnect(struct gameport *gameport)
+{
+	struct interact *interact = gameport_get_drvdata(gameport);
+
+	input_unregister_device(interact->dev);
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	kfree(interact);
+}
+
+static struct gameport_driver interact_drv = {
+	.driver		= {
+		.name	= "interact",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= interact_connect,
+	.disconnect	= interact_disconnect,
+};
+
+module_gameport_driver(interact_drv);
diff --git a/drivers/input/joystick/joydump.c b/drivers/input/joystick/joydump.c
new file mode 100644
index 000000000..865652a78
--- /dev/null
+++ b/drivers/input/joystick/joydump.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1996-2001 Vojtech Pavlik
+ */
+
+/*
+ * This is just a very simple driver that can dump the data
+ * out of the joystick port into the syslog ...
+ */
+
+#include <linux/module.h>
+#include <linux/gameport.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+#define DRIVER_DESC	"Gameport data dumper module"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define BUF_SIZE 256
+
+struct joydump {
+	unsigned int time;
+	unsigned char data;
+};
+
+static int joydump_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct joydump *buf;	/* all entries */
+	struct joydump *dump, *prev;	/* one entry each */
+	int axes[4], buttons;
+	int i, j, t, timeout;
+	unsigned long flags;
+	unsigned char u;
+
+	printk(KERN_INFO "joydump: ,------------------ START ----------------.\n");
+	printk(KERN_INFO "joydump: | Dumping: %30s |\n", gameport->phys);
+	printk(KERN_INFO "joydump: | Speed: %28d kHz |\n", gameport->speed);
+
+	if (gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
+
+		printk(KERN_INFO "joydump: | Raw mode not available - trying cooked.    |\n");
+
+		if (gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
+
+			printk(KERN_INFO "joydump: | Cooked not available either. Failing.   |\n");
+			printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
+			return -ENODEV;
+		}
+
+		gameport_cooked_read(gameport, axes, &buttons);
+
+		for (i = 0; i < 4; i++)
+			printk(KERN_INFO "joydump: | Axis %d: %4d.                           |\n", i, axes[i]);
+		printk(KERN_INFO "joydump: | Buttons %02x.                             |\n", buttons);
+		printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
+	}
+
+	timeout = gameport_time(gameport, 10000); /* 10 ms */
+
+	buf = kmalloc_array(BUF_SIZE, sizeof(struct joydump), GFP_KERNEL);
+	if (!buf) {
+		printk(KERN_INFO "joydump: no memory for testing\n");
+		goto jd_end;
+	}
+	dump = buf;
+	t = 0;
+	i = 1;
+
+	local_irq_save(flags);
+
+	u = gameport_read(gameport);
+
+	dump->data = u;
+	dump->time = t;
+	dump++;
+
+	gameport_trigger(gameport);
+
+	while (i < BUF_SIZE && t < timeout) {
+
+		dump->data = gameport_read(gameport);
+
+		if (dump->data ^ u) {
+			u = dump->data;
+			dump->time = t;
+			i++;
+			dump++;
+		}
+		t++;
+	}
+
+	local_irq_restore(flags);
+
+/*
+ * Dump data.
+ */
+
+	t = i;
+	dump = buf;
+	prev = dump;
+
+	printk(KERN_INFO "joydump: >------------------ DATA -----------------<\n");
+	printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ", 0, 0);
+	for (j = 7; j >= 0; j--)
+		printk("%d", (dump->data >> j) & 1);
+	printk(" |\n");
+	dump++;
+
+	for (i = 1; i < t; i++, dump++, prev++) {
+		printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ",
+			i, dump->time - prev->time);
+		for (j = 7; j >= 0; j--)
+			printk("%d", (dump->data >> j) & 1);
+		printk(" |\n");
+	}
+	kfree(buf);
+
+jd_end:
+	printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
+
+	return 0;
+}
+
+static void joydump_disconnect(struct gameport *gameport)
+{
+	gameport_close(gameport);
+}
+
+static struct gameport_driver joydump_drv = {
+	.driver		= {
+		.name	= "joydump",
+	},
+	.description	= DRIVER_DESC,
+	.connect	= joydump_connect,
+	.disconnect	= joydump_disconnect,
+};
+
+module_gameport_driver(joydump_drv);
diff --git a/drivers/input/joystick/magellan.c b/drivers/input/joystick/magellan.c
new file mode 100644
index 000000000..017ef8c61
--- /dev/null
+++ b/drivers/input/joystick/magellan.c
@@ -0,0 +1,205 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Magellan and Space Mouse 6dof controller driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC	"Magellan and SpaceMouse 6dof controller driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define	MAGELLAN_MAX_LENGTH	32
+
+static int magellan_buttons[] = { BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8 };
+static int magellan_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
+
+/*
+ * Per-Magellan data.
+ */
+
+struct magellan {
+	struct input_dev *dev;
+	int idx;
+	unsigned char data[MAGELLAN_MAX_LENGTH];
+	char phys[32];
+};
+
+/*
+ * magellan_crunch_nibbles() verifies that the bytes sent from the Magellan
+ * have correct upper nibbles for the lower ones, if not, the packet will
+ * be thrown away. It also strips these upper halves to simplify further
+ * processing.
+ */
+
+static int magellan_crunch_nibbles(unsigned char *data, int count)
+{
+	static unsigned char nibbles[16] = "0AB3D56GH9:K<MN?";
+
+	do {
+		if (data[count] == nibbles[data[count] & 0xf])
+			data[count] = data[count] & 0xf;
+		else
+			return -1;
+	} while (--count);
+
+	return 0;
+}
+
+static void magellan_process_packet(struct magellan* magellan)
+{
+	struct input_dev *dev = magellan->dev;
+	unsigned char *data = magellan->data;
+	int i, t;
+
+	if (!magellan->idx) return;
+
+	switch (magellan->data[0]) {
+
+		case 'd':				/* Axis data */
+			if (magellan->idx != 25) return;
+			if (magellan_crunch_nibbles(data, 24)) return;
+			for (i = 0; i < 6; i++)
+				input_report_abs(dev, magellan_axes[i],
+					(data[(i << 2) + 1] << 12 | data[(i << 2) + 2] << 8 |
+					 data[(i << 2) + 3] <<  4 | data[(i << 2) + 4]) - 32768);
+			break;
+
+		case 'k':				/* Button data */
+			if (magellan->idx != 4) return;
+			if (magellan_crunch_nibbles(data, 3)) return;
+			t = (data[1] << 1) | (data[2] << 5) | data[3];
+			for (i = 0; i < 9; i++) input_report_key(dev, magellan_buttons[i], (t >> i) & 1);
+			break;
+	}
+
+	input_sync(dev);
+}
+
+static irqreturn_t magellan_interrupt(struct serio *serio,
+		unsigned char data, unsigned int flags)
+{
+	struct magellan* magellan = serio_get_drvdata(serio);
+
+	if (data == '\r') {
+		magellan_process_packet(magellan);
+		magellan->idx = 0;
+	} else {
+		if (magellan->idx < MAGELLAN_MAX_LENGTH)
+			magellan->data[magellan->idx++] = data;
+	}
+	return IRQ_HANDLED;
+}
+
+/*
+ * magellan_disconnect() is the opposite of magellan_connect()
+ */
+
+static void magellan_disconnect(struct serio *serio)
+{
+	struct magellan* magellan = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(magellan->dev);
+	kfree(magellan);
+}
+
+/*
+ * magellan_connect() is the routine that is called when someone adds a
+ * new serio device that supports Magellan protocol and registers it as
+ * an input device.
+ */
+
+static int magellan_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct magellan *magellan;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+	int i;
+
+	magellan = kzalloc(sizeof(struct magellan), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!magellan || !input_dev)
+		goto fail1;
+
+	magellan->dev = input_dev;
+	snprintf(magellan->phys, sizeof(magellan->phys), "%s/input0", serio->phys);
+
+	input_dev->name = "LogiCad3D Magellan / SpaceMouse";
+	input_dev->phys = magellan->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_MAGELLAN;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	for (i = 0; i < 9; i++)
+		set_bit(magellan_buttons[i], input_dev->keybit);
+
+	for (i = 0; i < 6; i++)
+		input_set_abs_params(input_dev, magellan_axes[i], -360, 360, 0, 0);
+
+	serio_set_drvdata(serio, magellan);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(magellan->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(magellan);
+	return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id magellan_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_MAGELLAN,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, magellan_serio_ids);
+
+static struct serio_driver magellan_drv = {
+	.driver		= {
+		.name	= "magellan",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= magellan_serio_ids,
+	.interrupt	= magellan_interrupt,
+	.connect	= magellan_connect,
+	.disconnect	= magellan_disconnect,
+};
+
+module_serio_driver(magellan_drv);
diff --git a/drivers/input/joystick/maplecontrol.c b/drivers/input/joystick/maplecontrol.c
new file mode 100644
index 000000000..3833ac47b
--- /dev/null
+++ b/drivers/input/joystick/maplecontrol.c
@@ -0,0 +1,193 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *	SEGA Dreamcast controller driver
+ *	Based on drivers/usb/iforce.c
+ *
+ *	Copyright Yaegashi Takeshi, 2001
+ *	Adrian McMenamin, 2008 - 2009
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/maple.h>
+
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
+MODULE_DESCRIPTION("SEGA Dreamcast controller driver");
+MODULE_LICENSE("GPL");
+
+struct dc_pad {
+	struct input_dev *dev;
+	struct maple_device *mdev;
+};
+
+static void dc_pad_callback(struct mapleq *mq)
+{
+	unsigned short buttons;
+	struct maple_device *mapledev = mq->dev;
+	struct dc_pad *pad = maple_get_drvdata(mapledev);
+	struct input_dev *dev = pad->dev;
+	unsigned char *res = mq->recvbuf->buf;
+
+	buttons = ~le16_to_cpup((__le16 *)(res + 8));
+
+	input_report_abs(dev, ABS_HAT0Y,
+		(buttons & 0x0010 ? -1 : 0) + (buttons & 0x0020 ? 1 : 0));
+	input_report_abs(dev, ABS_HAT0X,
+		(buttons & 0x0040 ? -1 : 0) + (buttons & 0x0080 ? 1 : 0));
+	input_report_abs(dev, ABS_HAT1Y,
+		(buttons & 0x1000 ? -1 : 0) + (buttons & 0x2000 ? 1 : 0));
+	input_report_abs(dev, ABS_HAT1X,
+		(buttons & 0x4000 ? -1 : 0) + (buttons & 0x8000 ? 1 : 0));
+
+	input_report_key(dev, BTN_C,      buttons & 0x0001);
+	input_report_key(dev, BTN_B,      buttons & 0x0002);
+	input_report_key(dev, BTN_A,      buttons & 0x0004);
+	input_report_key(dev, BTN_START,  buttons & 0x0008);
+	input_report_key(dev, BTN_Z,      buttons & 0x0100);
+	input_report_key(dev, BTN_Y,      buttons & 0x0200);
+	input_report_key(dev, BTN_X,      buttons & 0x0400);
+	input_report_key(dev, BTN_SELECT, buttons & 0x0800);
+
+	input_report_abs(dev, ABS_GAS,    res[10]);
+	input_report_abs(dev, ABS_BRAKE,  res[11]);
+	input_report_abs(dev, ABS_X,      res[12]);
+	input_report_abs(dev, ABS_Y,      res[13]);
+	input_report_abs(dev, ABS_RX,     res[14]);
+	input_report_abs(dev, ABS_RY,     res[15]);
+}
+
+static int dc_pad_open(struct input_dev *dev)
+{
+	struct dc_pad *pad = dev_get_platdata(&dev->dev);
+
+	maple_getcond_callback(pad->mdev, dc_pad_callback, HZ/20,
+		MAPLE_FUNC_CONTROLLER);
+
+	return 0;
+}
+
+static void dc_pad_close(struct input_dev *dev)
+{
+	struct dc_pad *pad = dev_get_platdata(&dev->dev);
+
+	maple_getcond_callback(pad->mdev, dc_pad_callback, 0,
+		MAPLE_FUNC_CONTROLLER);
+}
+
+/* allow the controller to be used */
+static int probe_maple_controller(struct device *dev)
+{
+	static const short btn_bit[32] = {
+		BTN_C, BTN_B, BTN_A, BTN_START, -1, -1, -1, -1,
+		BTN_Z, BTN_Y, BTN_X, BTN_SELECT, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1,
+	};
+
+	static const short abs_bit[32] = {
+		-1, -1, -1, -1, ABS_HAT0Y, ABS_HAT0Y, ABS_HAT0X, ABS_HAT0X,
+		-1, -1, -1, -1, ABS_HAT1Y, ABS_HAT1Y, ABS_HAT1X, ABS_HAT1X,
+		ABS_GAS, ABS_BRAKE, ABS_X, ABS_Y, ABS_RX, ABS_RY, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1,
+	};
+
+	struct maple_device *mdev = to_maple_dev(dev);
+	struct maple_driver *mdrv = to_maple_driver(dev->driver);
+	int i, error;
+	struct dc_pad *pad;
+	struct input_dev *idev;
+	unsigned long data = be32_to_cpu(mdev->devinfo.function_data[0]);
+
+	pad = kzalloc(sizeof(struct dc_pad), GFP_KERNEL);
+	idev = input_allocate_device();
+	if (!pad || !idev) {
+		error = -ENOMEM;
+		goto fail;
+	}
+
+	pad->dev = idev;
+	pad->mdev = mdev;
+
+	idev->open = dc_pad_open;
+	idev->close = dc_pad_close;
+
+	for (i = 0; i < 32; i++) {
+		if (data & (1 << i)) {
+			if (btn_bit[i] >= 0)
+				__set_bit(btn_bit[i], idev->keybit);
+			else if (abs_bit[i] >= 0)
+				__set_bit(abs_bit[i], idev->absbit);
+		}
+	}
+
+	if (idev->keybit[BIT_WORD(BTN_JOYSTICK)])
+		idev->evbit[0] |= BIT_MASK(EV_KEY);
+
+	if (idev->absbit[0])
+		idev->evbit[0] |= BIT_MASK(EV_ABS);
+
+	for (i = ABS_X; i <= ABS_BRAKE; i++)
+		input_set_abs_params(idev, i, 0, 255, 0, 0);
+
+	for (i = ABS_HAT0X; i <= ABS_HAT3Y; i++)
+		input_set_abs_params(idev, i, 1, -1, 0, 0);
+
+	idev->dev.platform_data = pad;
+	idev->dev.parent = &mdev->dev;
+	idev->name = mdev->product_name;
+	idev->id.bustype = BUS_HOST;
+
+	error = input_register_device(idev);
+	if (error)
+		goto fail;
+
+	mdev->driver = mdrv;
+	maple_set_drvdata(mdev, pad);
+
+	return 0;
+
+fail:
+	input_free_device(idev);
+	kfree(pad);
+	maple_set_drvdata(mdev, NULL);
+	return error;
+}
+
+static int remove_maple_controller(struct device *dev)
+{
+	struct maple_device *mdev = to_maple_dev(dev);
+	struct dc_pad *pad = maple_get_drvdata(mdev);
+
+	mdev->callback = NULL;
+	input_unregister_device(pad->dev);
+	maple_set_drvdata(mdev, NULL);
+	kfree(pad);
+
+	return 0;
+}
+
+static struct maple_driver dc_pad_driver = {
+	.function =	MAPLE_FUNC_CONTROLLER,
+	.drv = {
+		.name	= "Dreamcast_controller",
+		.probe	= probe_maple_controller,
+		.remove	= remove_maple_controller,
+	},
+};
+
+static int __init dc_pad_init(void)
+{
+	return maple_driver_register(&dc_pad_driver);
+}
+
+static void __exit dc_pad_exit(void)
+{
+	maple_driver_unregister(&dc_pad_driver);
+}
+
+module_init(dc_pad_init);
+module_exit(dc_pad_exit);
diff --git a/drivers/input/joystick/n64joy.c b/drivers/input/joystick/n64joy.c
new file mode 100644
index 000000000..9dbca3666
--- /dev/null
+++ b/drivers/input/joystick/n64joy.c
@@ -0,0 +1,345 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Support for the four N64 controllers.
+ *
+ * Copyright (c) 2021 Lauri Kasanen
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/limits.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/timer.h>
+
+MODULE_AUTHOR("Lauri Kasanen <cand@gmx.com>");
+MODULE_DESCRIPTION("Driver for N64 controllers");
+MODULE_LICENSE("GPL");
+
+#define PIF_RAM 0x1fc007c0
+
+#define SI_DRAM_REG 0
+#define SI_READ_REG 1
+#define SI_WRITE_REG 4
+#define SI_STATUS_REG 6
+
+#define SI_STATUS_DMA_BUSY  BIT(0)
+#define SI_STATUS_IO_BUSY   BIT(1)
+
+#define N64_CONTROLLER_ID 0x0500
+
+#define MAX_CONTROLLERS 4
+
+static const char *n64joy_phys[MAX_CONTROLLERS] = {
+	"n64joy/port0",
+	"n64joy/port1",
+	"n64joy/port2",
+	"n64joy/port3",
+};
+
+struct n64joy_priv {
+	u64 si_buf[8] ____cacheline_aligned;
+	struct timer_list timer;
+	struct mutex n64joy_mutex;
+	struct input_dev *n64joy_dev[MAX_CONTROLLERS];
+	u32 __iomem *reg_base;
+	u8 n64joy_opened;
+};
+
+struct joydata {
+	unsigned int: 16; /* unused */
+	unsigned int err: 2;
+	unsigned int: 14; /* unused */
+
+	union {
+		u32 data;
+
+		struct {
+			unsigned int a: 1;
+			unsigned int b: 1;
+			unsigned int z: 1;
+			unsigned int start: 1;
+			unsigned int up: 1;
+			unsigned int down: 1;
+			unsigned int left: 1;
+			unsigned int right: 1;
+			unsigned int: 2; /* unused */
+			unsigned int l: 1;
+			unsigned int r: 1;
+			unsigned int c_up: 1;
+			unsigned int c_down: 1;
+			unsigned int c_left: 1;
+			unsigned int c_right: 1;
+			signed int x: 8;
+			signed int y: 8;
+		};
+	};
+};
+
+static void n64joy_write_reg(u32 __iomem *reg_base, const u8 reg, const u32 value)
+{
+	writel(value, reg_base + reg);
+}
+
+static u32 n64joy_read_reg(u32 __iomem *reg_base, const u8 reg)
+{
+	return readl(reg_base + reg);
+}
+
+static void n64joy_wait_si_dma(u32 __iomem *reg_base)
+{
+	while (n64joy_read_reg(reg_base, SI_STATUS_REG) &
+	       (SI_STATUS_DMA_BUSY | SI_STATUS_IO_BUSY))
+		cpu_relax();
+}
+
+static void n64joy_exec_pif(struct n64joy_priv *priv, const u64 in[8])
+{
+	unsigned long flags;
+
+	dma_cache_wback_inv((unsigned long) in, 8 * 8);
+	dma_cache_inv((unsigned long) priv->si_buf, 8 * 8);
+
+	local_irq_save(flags);
+
+	n64joy_wait_si_dma(priv->reg_base);
+
+	barrier();
+	n64joy_write_reg(priv->reg_base, SI_DRAM_REG, virt_to_phys(in));
+	barrier();
+	n64joy_write_reg(priv->reg_base, SI_WRITE_REG, PIF_RAM);
+	barrier();
+
+	n64joy_wait_si_dma(priv->reg_base);
+
+	barrier();
+	n64joy_write_reg(priv->reg_base, SI_DRAM_REG, virt_to_phys(priv->si_buf));
+	barrier();
+	n64joy_write_reg(priv->reg_base, SI_READ_REG, PIF_RAM);
+	barrier();
+
+	n64joy_wait_si_dma(priv->reg_base);
+
+	local_irq_restore(flags);
+}
+
+static const u64 polldata[] ____cacheline_aligned = {
+	0xff010401ffffffff,
+	0xff010401ffffffff,
+	0xff010401ffffffff,
+	0xff010401ffffffff,
+	0xfe00000000000000,
+	0,
+	0,
+	1
+};
+
+static void n64joy_poll(struct timer_list *t)
+{
+	const struct joydata *data;
+	struct n64joy_priv *priv = container_of(t, struct n64joy_priv, timer);
+	struct input_dev *dev;
+	u32 i;
+
+	n64joy_exec_pif(priv, polldata);
+
+	data = (struct joydata *) priv->si_buf;
+
+	for (i = 0; i < MAX_CONTROLLERS; i++) {
+		if (!priv->n64joy_dev[i])
+			continue;
+
+		dev = priv->n64joy_dev[i];
+
+		/* d-pad */
+		input_report_key(dev, BTN_DPAD_UP, data[i].up);
+		input_report_key(dev, BTN_DPAD_DOWN, data[i].down);
+		input_report_key(dev, BTN_DPAD_LEFT, data[i].left);
+		input_report_key(dev, BTN_DPAD_RIGHT, data[i].right);
+
+		/* c buttons */
+		input_report_key(dev, BTN_FORWARD, data[i].c_up);
+		input_report_key(dev, BTN_BACK, data[i].c_down);
+		input_report_key(dev, BTN_LEFT, data[i].c_left);
+		input_report_key(dev, BTN_RIGHT, data[i].c_right);
+
+		/* matching buttons */
+		input_report_key(dev, BTN_START, data[i].start);
+		input_report_key(dev, BTN_Z, data[i].z);
+
+		/* remaining ones: a, b, l, r */
+		input_report_key(dev, BTN_0, data[i].a);
+		input_report_key(dev, BTN_1, data[i].b);
+		input_report_key(dev, BTN_2, data[i].l);
+		input_report_key(dev, BTN_3, data[i].r);
+
+		input_report_abs(dev, ABS_X, data[i].x);
+		input_report_abs(dev, ABS_Y, data[i].y);
+
+		input_sync(dev);
+	}
+
+	mod_timer(&priv->timer, jiffies + msecs_to_jiffies(16));
+}
+
+static int n64joy_open(struct input_dev *dev)
+{
+	struct n64joy_priv *priv = input_get_drvdata(dev);
+	int err;
+
+	err = mutex_lock_interruptible(&priv->n64joy_mutex);
+	if (err)
+		return err;
+
+	if (!priv->n64joy_opened) {
+		/*
+		 * We could use the vblank irq, but it's not important if
+		 * the poll point slightly changes.
+		 */
+		timer_setup(&priv->timer, n64joy_poll, 0);
+		mod_timer(&priv->timer, jiffies + msecs_to_jiffies(16));
+	}
+
+	priv->n64joy_opened++;
+
+	mutex_unlock(&priv->n64joy_mutex);
+	return err;
+}
+
+static void n64joy_close(struct input_dev *dev)
+{
+	struct n64joy_priv *priv = input_get_drvdata(dev);
+
+	mutex_lock(&priv->n64joy_mutex);
+	if (!--priv->n64joy_opened)
+		del_timer_sync(&priv->timer);
+	mutex_unlock(&priv->n64joy_mutex);
+}
+
+static const u64 __initconst scandata[] ____cacheline_aligned = {
+	0xff010300ffffffff,
+	0xff010300ffffffff,
+	0xff010300ffffffff,
+	0xff010300ffffffff,
+	0xfe00000000000000,
+	0,
+	0,
+	1
+};
+
+/*
+ * The target device is embedded and RAM-constrained. We save RAM
+ * by initializing in __init code that gets dropped late in boot.
+ * For the same reason there is no module or unloading support.
+ */
+static int __init n64joy_probe(struct platform_device *pdev)
+{
+	const struct joydata *data;
+	struct n64joy_priv *priv;
+	struct input_dev *dev;
+	int err = 0;
+	u32 i, j, found = 0;
+
+	priv = kzalloc(sizeof(struct n64joy_priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+	mutex_init(&priv->n64joy_mutex);
+
+	priv->reg_base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->reg_base)) {
+		err = PTR_ERR(priv->reg_base);
+		goto fail;
+	}
+
+	/* The controllers are not hotpluggable, so we can scan in init */
+	n64joy_exec_pif(priv, scandata);
+
+	data = (struct joydata *) priv->si_buf;
+
+	for (i = 0; i < MAX_CONTROLLERS; i++) {
+		if (!data[i].err && data[i].data >> 16 == N64_CONTROLLER_ID) {
+			found++;
+
+			dev = priv->n64joy_dev[i] = input_allocate_device();
+			if (!priv->n64joy_dev[i]) {
+				err = -ENOMEM;
+				goto fail;
+			}
+
+			input_set_drvdata(dev, priv);
+
+			dev->name = "N64 controller";
+			dev->phys = n64joy_phys[i];
+			dev->id.bustype = BUS_HOST;
+			dev->id.vendor = 0;
+			dev->id.product = data[i].data >> 16;
+			dev->id.version = 0;
+			dev->dev.parent = &pdev->dev;
+
+			dev->open = n64joy_open;
+			dev->close = n64joy_close;
+
+			/* d-pad */
+			input_set_capability(dev, EV_KEY, BTN_DPAD_UP);
+			input_set_capability(dev, EV_KEY, BTN_DPAD_DOWN);
+			input_set_capability(dev, EV_KEY, BTN_DPAD_LEFT);
+			input_set_capability(dev, EV_KEY, BTN_DPAD_RIGHT);
+			/* c buttons */
+			input_set_capability(dev, EV_KEY, BTN_LEFT);
+			input_set_capability(dev, EV_KEY, BTN_RIGHT);
+			input_set_capability(dev, EV_KEY, BTN_FORWARD);
+			input_set_capability(dev, EV_KEY, BTN_BACK);
+			/* matching buttons */
+			input_set_capability(dev, EV_KEY, BTN_START);
+			input_set_capability(dev, EV_KEY, BTN_Z);
+			/* remaining ones: a, b, l, r */
+			input_set_capability(dev, EV_KEY, BTN_0);
+			input_set_capability(dev, EV_KEY, BTN_1);
+			input_set_capability(dev, EV_KEY, BTN_2);
+			input_set_capability(dev, EV_KEY, BTN_3);
+
+			for (j = 0; j < 2; j++)
+				input_set_abs_params(dev, ABS_X + j,
+						     S8_MIN, S8_MAX, 0, 0);
+
+			err = input_register_device(dev);
+			if (err) {
+				input_free_device(dev);
+				goto fail;
+			}
+		}
+	}
+
+	pr_info("%u controller(s) connected\n", found);
+
+	if (!found)
+		return -ENODEV;
+
+	return 0;
+fail:
+	for (i = 0; i < MAX_CONTROLLERS; i++) {
+		if (!priv->n64joy_dev[i])
+			continue;
+		input_unregister_device(priv->n64joy_dev[i]);
+	}
+	return err;
+}
+
+static struct platform_driver n64joy_driver = {
+	.driver = {
+		.name = "n64joy",
+	},
+};
+
+static int __init n64joy_init(void)
+{
+	return platform_driver_probe(&n64joy_driver, n64joy_probe);
+}
+
+module_init(n64joy_init);
diff --git a/drivers/input/joystick/psxpad-spi.c b/drivers/input/joystick/psxpad-spi.c
new file mode 100644
index 000000000..a32656064
--- /dev/null
+++ b/drivers/input/joystick/psxpad-spi.c
@@ -0,0 +1,405 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * PlayStation 1/2 joypads via SPI interface Driver
+ *
+ * Copyright (C) 2017 Tomohiro Yoshidomi <sylph23k@gmail.com>
+ *
+ * PlayStation 1/2 joypad's plug (not socket)
+ *  123 456 789
+ * (...|...|...)
+ *
+ * 1: DAT -> MISO (pullup with 1k owm to 3.3V)
+ * 2: CMD -> MOSI
+ * 3: 9V (for motor, if not use N.C.)
+ * 4: GND
+ * 5: 3.3V
+ * 6: Attention -> CS(SS)
+ * 7: SCK -> SCK
+ * 8: N.C.
+ * 9: ACK -> N.C.
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/types.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+
+#define REVERSE_BIT(x) ((((x) & 0x80) >> 7) | (((x) & 0x40) >> 5) | \
+	(((x) & 0x20) >> 3) | (((x) & 0x10) >> 1) | (((x) & 0x08) << 1) | \
+	(((x) & 0x04) << 3) | (((x) & 0x02) << 5) | (((x) & 0x01) << 7))
+
+/* PlayStation 1/2 joypad command and response are LSBFIRST. */
+
+/*
+ *	0x01, 0x42, 0x00, 0x00, 0x00,
+ *	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ *	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ */
+static const u8 PSX_CMD_POLL[] = {
+	0x80, 0x42, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+/*	0x01, 0x43, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 */
+static const u8 PSX_CMD_ENTER_CFG[] = {
+	0x80, 0xC2, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+/*	0x01, 0x43, 0x00, 0x00, 0x5A, 0x5A, 0x5A, 0x5A, 0x5A */
+static const u8 PSX_CMD_EXIT_CFG[] = {
+	0x80, 0xC2, 0x00, 0x00, 0x5A, 0x5A, 0x5A, 0x5A, 0x5A
+};
+/*	0x01, 0x4D, 0x00, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF */
+static const u8 PSX_CMD_ENABLE_MOTOR[]	= {
+	0x80, 0xB2, 0x00, 0x00, 0x80, 0xFF, 0xFF, 0xFF, 0xFF
+};
+
+struct psxpad {
+	struct spi_device *spi;
+	struct input_dev *idev;
+	char phys[0x20];
+	bool motor1enable;
+	bool motor2enable;
+	u8 motor1level;
+	u8 motor2level;
+	u8 sendbuf[0x20] ____cacheline_aligned;
+	u8 response[sizeof(PSX_CMD_POLL)] ____cacheline_aligned;
+};
+
+static int psxpad_command(struct psxpad *pad, const u8 sendcmdlen)
+{
+	struct spi_transfer xfers = {
+		.tx_buf		= pad->sendbuf,
+		.rx_buf		= pad->response,
+		.len		= sendcmdlen,
+	};
+	int err;
+
+	err = spi_sync_transfer(pad->spi, &xfers, 1);
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: failed to SPI xfers mode: %d\n",
+			__func__, err);
+		return err;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_JOYSTICK_PSXPAD_SPI_FF
+static void psxpad_control_motor(struct psxpad *pad,
+				 bool motor1enable, bool motor2enable)
+{
+	int err;
+
+	pad->motor1enable = motor1enable;
+	pad->motor2enable = motor2enable;
+
+	memcpy(pad->sendbuf, PSX_CMD_ENTER_CFG, sizeof(PSX_CMD_ENTER_CFG));
+	err = psxpad_command(pad, sizeof(PSX_CMD_ENTER_CFG));
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: failed to enter config mode: %d\n",
+			__func__, err);
+		return;
+	}
+
+	memcpy(pad->sendbuf, PSX_CMD_ENABLE_MOTOR,
+	       sizeof(PSX_CMD_ENABLE_MOTOR));
+	pad->sendbuf[3] = pad->motor1enable ? 0x00 : 0xFF;
+	pad->sendbuf[4] = pad->motor2enable ? 0x80 : 0xFF;
+	err = psxpad_command(pad, sizeof(PSX_CMD_ENABLE_MOTOR));
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: failed to enable motor mode: %d\n",
+			__func__, err);
+		return;
+	}
+
+	memcpy(pad->sendbuf, PSX_CMD_EXIT_CFG, sizeof(PSX_CMD_EXIT_CFG));
+	err = psxpad_command(pad, sizeof(PSX_CMD_EXIT_CFG));
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: failed to exit config mode: %d\n",
+			__func__, err);
+		return;
+	}
+}
+
+static void psxpad_set_motor_level(struct psxpad *pad,
+				   u8 motor1level, u8 motor2level)
+{
+	pad->motor1level = motor1level ? 0xFF : 0x00;
+	pad->motor2level = REVERSE_BIT(motor2level);
+}
+
+static int psxpad_spi_play_effect(struct input_dev *idev,
+				  void *data, struct ff_effect *effect)
+{
+	struct psxpad *pad = input_get_drvdata(idev);
+
+	switch (effect->type) {
+	case FF_RUMBLE:
+		psxpad_set_motor_level(pad,
+			(effect->u.rumble.weak_magnitude >> 8) & 0xFFU,
+			(effect->u.rumble.strong_magnitude >> 8) & 0xFFU);
+		break;
+	}
+
+	return 0;
+}
+
+static int psxpad_spi_init_ff(struct psxpad *pad)
+{
+	int err;
+
+	input_set_capability(pad->idev, EV_FF, FF_RUMBLE);
+
+	err = input_ff_create_memless(pad->idev, NULL, psxpad_spi_play_effect);
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"input_ff_create_memless() failed: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+#else	/* CONFIG_JOYSTICK_PSXPAD_SPI_FF */
+
+static void psxpad_control_motor(struct psxpad *pad,
+				 bool motor1enable, bool motor2enable)
+{
+}
+
+static void psxpad_set_motor_level(struct psxpad *pad,
+				   u8 motor1level, u8 motor2level)
+{
+}
+
+static inline int psxpad_spi_init_ff(struct psxpad *pad)
+{
+	return 0;
+}
+#endif	/* CONFIG_JOYSTICK_PSXPAD_SPI_FF */
+
+static int psxpad_spi_poll_open(struct input_dev *input)
+{
+	struct psxpad *pad = input_get_drvdata(input);
+
+	pm_runtime_get_sync(&pad->spi->dev);
+
+	return 0;
+}
+
+static void psxpad_spi_poll_close(struct input_dev *input)
+{
+	struct psxpad *pad = input_get_drvdata(input);
+
+	pm_runtime_put_sync(&pad->spi->dev);
+}
+
+static void psxpad_spi_poll(struct input_dev *input)
+{
+	struct psxpad *pad = input_get_drvdata(input);
+	u8 b_rsp3, b_rsp4;
+	int err;
+
+	psxpad_control_motor(pad, true, true);
+
+	memcpy(pad->sendbuf, PSX_CMD_POLL, sizeof(PSX_CMD_POLL));
+	pad->sendbuf[3] = pad->motor1enable ? pad->motor1level : 0x00;
+	pad->sendbuf[4] = pad->motor2enable ? pad->motor2level : 0x00;
+	err = psxpad_command(pad, sizeof(PSX_CMD_POLL));
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: poll command failed mode: %d\n", __func__, err);
+		return;
+	}
+
+	switch (pad->response[1]) {
+	case 0xCE:	/* 0x73 : analog 1 */
+		/* button data is inverted */
+		b_rsp3 = ~pad->response[3];
+		b_rsp4 = ~pad->response[4];
+
+		input_report_abs(input, ABS_X, REVERSE_BIT(pad->response[7]));
+		input_report_abs(input, ABS_Y, REVERSE_BIT(pad->response[8]));
+		input_report_abs(input, ABS_RX, REVERSE_BIT(pad->response[5]));
+		input_report_abs(input, ABS_RY, REVERSE_BIT(pad->response[6]));
+		input_report_key(input, BTN_DPAD_UP, b_rsp3 & BIT(3));
+		input_report_key(input, BTN_DPAD_DOWN, b_rsp3 & BIT(1));
+		input_report_key(input, BTN_DPAD_LEFT, b_rsp3 & BIT(0));
+		input_report_key(input, BTN_DPAD_RIGHT, b_rsp3 & BIT(2));
+		input_report_key(input, BTN_X, b_rsp4 & BIT(3));
+		input_report_key(input, BTN_A, b_rsp4 & BIT(2));
+		input_report_key(input, BTN_B, b_rsp4 & BIT(1));
+		input_report_key(input, BTN_Y, b_rsp4 & BIT(0));
+		input_report_key(input, BTN_TL, b_rsp4 & BIT(5));
+		input_report_key(input, BTN_TR, b_rsp4 & BIT(4));
+		input_report_key(input, BTN_TL2, b_rsp4 & BIT(7));
+		input_report_key(input, BTN_TR2, b_rsp4 & BIT(6));
+		input_report_key(input, BTN_THUMBL, b_rsp3 & BIT(6));
+		input_report_key(input, BTN_THUMBR, b_rsp3 & BIT(5));
+		input_report_key(input, BTN_SELECT, b_rsp3 & BIT(7));
+		input_report_key(input, BTN_START, b_rsp3 & BIT(4));
+		break;
+
+	case 0x82:	/* 0x41 : digital */
+		/* button data is inverted */
+		b_rsp3 = ~pad->response[3];
+		b_rsp4 = ~pad->response[4];
+
+		input_report_abs(input, ABS_X, 0x80);
+		input_report_abs(input, ABS_Y, 0x80);
+		input_report_abs(input, ABS_RX, 0x80);
+		input_report_abs(input, ABS_RY, 0x80);
+		input_report_key(input, BTN_DPAD_UP, b_rsp3 & BIT(3));
+		input_report_key(input, BTN_DPAD_DOWN, b_rsp3 & BIT(1));
+		input_report_key(input, BTN_DPAD_LEFT, b_rsp3 & BIT(0));
+		input_report_key(input, BTN_DPAD_RIGHT, b_rsp3 & BIT(2));
+		input_report_key(input, BTN_X, b_rsp4 & BIT(3));
+		input_report_key(input, BTN_A, b_rsp4 & BIT(2));
+		input_report_key(input, BTN_B, b_rsp4 & BIT(1));
+		input_report_key(input, BTN_Y, b_rsp4 & BIT(0));
+		input_report_key(input, BTN_TL, b_rsp4 & BIT(5));
+		input_report_key(input, BTN_TR, b_rsp4 & BIT(4));
+		input_report_key(input, BTN_TL2, b_rsp4 & BIT(7));
+		input_report_key(input, BTN_TR2, b_rsp4 & BIT(6));
+		input_report_key(input, BTN_THUMBL, false);
+		input_report_key(input, BTN_THUMBR, false);
+		input_report_key(input, BTN_SELECT, b_rsp3 & BIT(7));
+		input_report_key(input, BTN_START, b_rsp3 & BIT(4));
+		break;
+	}
+
+	input_sync(input);
+}
+
+static int psxpad_spi_probe(struct spi_device *spi)
+{
+	struct psxpad *pad;
+	struct input_dev *idev;
+	int err;
+
+	pad = devm_kzalloc(&spi->dev, sizeof(struct psxpad), GFP_KERNEL);
+	if (!pad)
+		return -ENOMEM;
+
+	idev = devm_input_allocate_device(&spi->dev);
+	if (!idev) {
+		dev_err(&spi->dev, "failed to allocate input device\n");
+		return -ENOMEM;
+	}
+
+	/* input poll device settings */
+	pad->idev = idev;
+	pad->spi = spi;
+
+	/* input device settings */
+	input_set_drvdata(idev, pad);
+
+	idev->name = "PlayStation 1/2 joypad";
+	snprintf(pad->phys, sizeof(pad->phys), "%s/input", dev_name(&spi->dev));
+	idev->id.bustype = BUS_SPI;
+
+	idev->open = psxpad_spi_poll_open;
+	idev->close = psxpad_spi_poll_close;
+
+	/* key/value map settings */
+	input_set_abs_params(idev, ABS_X, 0, 255, 0, 0);
+	input_set_abs_params(idev, ABS_Y, 0, 255, 0, 0);
+	input_set_abs_params(idev, ABS_RX, 0, 255, 0, 0);
+	input_set_abs_params(idev, ABS_RY, 0, 255, 0, 0);
+	input_set_capability(idev, EV_KEY, BTN_DPAD_UP);
+	input_set_capability(idev, EV_KEY, BTN_DPAD_DOWN);
+	input_set_capability(idev, EV_KEY, BTN_DPAD_LEFT);
+	input_set_capability(idev, EV_KEY, BTN_DPAD_RIGHT);
+	input_set_capability(idev, EV_KEY, BTN_A);
+	input_set_capability(idev, EV_KEY, BTN_B);
+	input_set_capability(idev, EV_KEY, BTN_X);
+	input_set_capability(idev, EV_KEY, BTN_Y);
+	input_set_capability(idev, EV_KEY, BTN_TL);
+	input_set_capability(idev, EV_KEY, BTN_TR);
+	input_set_capability(idev, EV_KEY, BTN_TL2);
+	input_set_capability(idev, EV_KEY, BTN_TR2);
+	input_set_capability(idev, EV_KEY, BTN_THUMBL);
+	input_set_capability(idev, EV_KEY, BTN_THUMBR);
+	input_set_capability(idev, EV_KEY, BTN_SELECT);
+	input_set_capability(idev, EV_KEY, BTN_START);
+
+	err = psxpad_spi_init_ff(pad);
+	if (err)
+		return err;
+
+	/* SPI settings */
+	spi->mode = SPI_MODE_3;
+	spi->bits_per_word = 8;
+	/* (PlayStation 1/2 joypad might be possible works 250kHz/500kHz) */
+	spi->master->min_speed_hz = 125000;
+	spi->master->max_speed_hz = 125000;
+	spi_setup(spi);
+
+	/* pad settings */
+	psxpad_set_motor_level(pad, 0, 0);
+
+
+	err = input_setup_polling(idev, psxpad_spi_poll);
+	if (err) {
+		dev_err(&spi->dev, "failed to set up polling: %d\n", err);
+		return err;
+	}
+
+	/* poll interval is about 60fps */
+	input_set_poll_interval(idev, 16);
+	input_set_min_poll_interval(idev, 8);
+	input_set_max_poll_interval(idev, 32);
+
+	/* register input poll device */
+	err = input_register_device(idev);
+	if (err) {
+		dev_err(&spi->dev,
+			"failed to register input device: %d\n", err);
+		return err;
+	}
+
+	pm_runtime_enable(&spi->dev);
+
+	return 0;
+}
+
+static int __maybe_unused psxpad_spi_suspend(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct psxpad *pad = spi_get_drvdata(spi);
+
+	psxpad_set_motor_level(pad, 0, 0);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(psxpad_spi_pm, psxpad_spi_suspend, NULL);
+
+static const struct spi_device_id psxpad_spi_id[] = {
+	{ "psxpad-spi", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, psxpad_spi_id);
+
+static struct spi_driver psxpad_spi_driver = {
+	.driver = {
+		.name = "psxpad-spi",
+		.pm = &psxpad_spi_pm,
+	},
+	.id_table = psxpad_spi_id,
+	.probe   = psxpad_spi_probe,
+};
+
+module_spi_driver(psxpad_spi_driver);
+
+MODULE_AUTHOR("Tomohiro Yoshidomi <sylph23k@gmail.com>");
+MODULE_DESCRIPTION("PlayStation 1/2 joypads via SPI interface Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/joystick/pxrc.c b/drivers/input/joystick/pxrc.c
new file mode 100644
index 000000000..ea2bf5951
--- /dev/null
+++ b/drivers/input/joystick/pxrc.c
@@ -0,0 +1,281 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for Phoenix RC Flight Controller Adapter
+ *
+ * Copyright (C) 2018 Marcus Folkesson <marcus.folkesson@gmail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+#include <linux/usb/input.h>
+#include <linux/mutex.h>
+#include <linux/input.h>
+
+#define PXRC_VENDOR_ID		0x1781
+#define PXRC_PRODUCT_ID		0x0898
+
+struct pxrc {
+	struct input_dev	*input;
+	struct usb_interface	*intf;
+	struct urb		*urb;
+	struct mutex		pm_mutex;
+	bool			is_open;
+	char			phys[64];
+};
+
+static void pxrc_usb_irq(struct urb *urb)
+{
+	struct pxrc *pxrc = urb->context;
+	u8 *data = urb->transfer_buffer;
+	int error;
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ETIME:
+		/* this urb is timing out */
+		dev_dbg(&pxrc->intf->dev,
+			"%s - urb timed out - was the device unplugged?\n",
+			__func__);
+		return;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+	case -EPIPE:
+		/* this urb is terminated, clean up */
+		dev_dbg(&pxrc->intf->dev, "%s - urb shutting down with status: %d\n",
+			__func__, urb->status);
+		return;
+	default:
+		dev_dbg(&pxrc->intf->dev, "%s - nonzero urb status received: %d\n",
+			__func__, urb->status);
+		goto exit;
+	}
+
+	if (urb->actual_length == 8) {
+		input_report_abs(pxrc->input, ABS_X, data[0]);
+		input_report_abs(pxrc->input, ABS_Y, data[2]);
+		input_report_abs(pxrc->input, ABS_RX, data[3]);
+		input_report_abs(pxrc->input, ABS_RY, data[4]);
+		input_report_abs(pxrc->input, ABS_RUDDER, data[5]);
+		input_report_abs(pxrc->input, ABS_THROTTLE, data[6]);
+		input_report_abs(pxrc->input, ABS_MISC, data[7]);
+
+		input_report_key(pxrc->input, BTN_A, data[1]);
+	}
+
+exit:
+	/* Resubmit to fetch new fresh URBs */
+	error = usb_submit_urb(urb, GFP_ATOMIC);
+	if (error && error != -EPERM)
+		dev_err(&pxrc->intf->dev,
+			"%s - usb_submit_urb failed with result: %d",
+			__func__, error);
+}
+
+static int pxrc_open(struct input_dev *input)
+{
+	struct pxrc *pxrc = input_get_drvdata(input);
+	int retval;
+
+	mutex_lock(&pxrc->pm_mutex);
+	retval = usb_submit_urb(pxrc->urb, GFP_KERNEL);
+	if (retval) {
+		dev_err(&pxrc->intf->dev,
+			"%s - usb_submit_urb failed, error: %d\n",
+			__func__, retval);
+		retval = -EIO;
+		goto out;
+	}
+
+	pxrc->is_open = true;
+
+out:
+	mutex_unlock(&pxrc->pm_mutex);
+	return retval;
+}
+
+static void pxrc_close(struct input_dev *input)
+{
+	struct pxrc *pxrc = input_get_drvdata(input);
+
+	mutex_lock(&pxrc->pm_mutex);
+	usb_kill_urb(pxrc->urb);
+	pxrc->is_open = false;
+	mutex_unlock(&pxrc->pm_mutex);
+}
+
+static void pxrc_free_urb(void *_pxrc)
+{
+	struct pxrc *pxrc = _pxrc;
+
+	usb_free_urb(pxrc->urb);
+}
+
+static int pxrc_probe(struct usb_interface *intf,
+		      const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct pxrc *pxrc;
+	struct usb_endpoint_descriptor *epirq;
+	size_t xfer_size;
+	void *xfer_buf;
+	int error;
+
+	/*
+	 * Locate the endpoint information. This device only has an
+	 * interrupt endpoint.
+	 */
+	error = usb_find_common_endpoints(intf->cur_altsetting,
+					  NULL, NULL, &epirq, NULL);
+	if (error) {
+		dev_err(&intf->dev, "Could not find endpoint\n");
+		return error;
+	}
+
+	pxrc = devm_kzalloc(&intf->dev, sizeof(*pxrc), GFP_KERNEL);
+	if (!pxrc)
+		return -ENOMEM;
+
+	mutex_init(&pxrc->pm_mutex);
+	pxrc->intf = intf;
+
+	usb_set_intfdata(pxrc->intf, pxrc);
+
+	xfer_size = usb_endpoint_maxp(epirq);
+	xfer_buf = devm_kmalloc(&intf->dev, xfer_size, GFP_KERNEL);
+	if (!xfer_buf)
+		return -ENOMEM;
+
+	pxrc->urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!pxrc->urb)
+		return -ENOMEM;
+
+	error = devm_add_action_or_reset(&intf->dev, pxrc_free_urb, pxrc);
+	if (error)
+		return error;
+
+	usb_fill_int_urb(pxrc->urb, udev,
+			 usb_rcvintpipe(udev, epirq->bEndpointAddress),
+			 xfer_buf, xfer_size, pxrc_usb_irq, pxrc, 1);
+
+	pxrc->input = devm_input_allocate_device(&intf->dev);
+	if (!pxrc->input) {
+		dev_err(&intf->dev, "couldn't allocate input device\n");
+		return -ENOMEM;
+	}
+
+	pxrc->input->name = "PXRC Flight Controller Adapter";
+
+	usb_make_path(udev, pxrc->phys, sizeof(pxrc->phys));
+	strlcat(pxrc->phys, "/input0", sizeof(pxrc->phys));
+	pxrc->input->phys = pxrc->phys;
+
+	usb_to_input_id(udev, &pxrc->input->id);
+
+	pxrc->input->open = pxrc_open;
+	pxrc->input->close = pxrc_close;
+
+	input_set_capability(pxrc->input, EV_KEY, BTN_A);
+	input_set_abs_params(pxrc->input, ABS_X, 0, 255, 0, 0);
+	input_set_abs_params(pxrc->input, ABS_Y, 0, 255, 0, 0);
+	input_set_abs_params(pxrc->input, ABS_RX, 0, 255, 0, 0);
+	input_set_abs_params(pxrc->input, ABS_RY, 0, 255, 0, 0);
+	input_set_abs_params(pxrc->input, ABS_RUDDER, 0, 255, 0, 0);
+	input_set_abs_params(pxrc->input, ABS_THROTTLE, 0, 255, 0, 0);
+	input_set_abs_params(pxrc->input, ABS_MISC, 0, 255, 0, 0);
+
+	input_set_drvdata(pxrc->input, pxrc);
+
+	error = input_register_device(pxrc->input);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+static void pxrc_disconnect(struct usb_interface *intf)
+{
+	/* All driver resources are devm-managed. */
+}
+
+static int pxrc_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct pxrc *pxrc = usb_get_intfdata(intf);
+
+	mutex_lock(&pxrc->pm_mutex);
+	if (pxrc->is_open)
+		usb_kill_urb(pxrc->urb);
+	mutex_unlock(&pxrc->pm_mutex);
+
+	return 0;
+}
+
+static int pxrc_resume(struct usb_interface *intf)
+{
+	struct pxrc *pxrc = usb_get_intfdata(intf);
+	int retval = 0;
+
+	mutex_lock(&pxrc->pm_mutex);
+	if (pxrc->is_open && usb_submit_urb(pxrc->urb, GFP_KERNEL) < 0)
+		retval = -EIO;
+
+	mutex_unlock(&pxrc->pm_mutex);
+	return retval;
+}
+
+static int pxrc_pre_reset(struct usb_interface *intf)
+{
+	struct pxrc *pxrc = usb_get_intfdata(intf);
+
+	mutex_lock(&pxrc->pm_mutex);
+	usb_kill_urb(pxrc->urb);
+	return 0;
+}
+
+static int pxrc_post_reset(struct usb_interface *intf)
+{
+	struct pxrc *pxrc = usb_get_intfdata(intf);
+	int retval = 0;
+
+	if (pxrc->is_open && usb_submit_urb(pxrc->urb, GFP_KERNEL) < 0)
+		retval = -EIO;
+
+	mutex_unlock(&pxrc->pm_mutex);
+
+	return retval;
+}
+
+static int pxrc_reset_resume(struct usb_interface *intf)
+{
+	return pxrc_resume(intf);
+}
+
+static const struct usb_device_id pxrc_table[] = {
+	{ USB_DEVICE(PXRC_VENDOR_ID, PXRC_PRODUCT_ID) },
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, pxrc_table);
+
+static struct usb_driver pxrc_driver = {
+	.name =		"pxrc",
+	.probe =	pxrc_probe,
+	.disconnect =	pxrc_disconnect,
+	.id_table =	pxrc_table,
+	.suspend	= pxrc_suspend,
+	.resume		= pxrc_resume,
+	.pre_reset	= pxrc_pre_reset,
+	.post_reset	= pxrc_post_reset,
+	.reset_resume	= pxrc_reset_resume,
+};
+
+module_usb_driver(pxrc_driver);
+
+MODULE_AUTHOR("Marcus Folkesson <marcus.folkesson@gmail.com>");
+MODULE_DESCRIPTION("PhoenixRC Flight Controller Adapter");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/joystick/qwiic-joystick.c b/drivers/input/joystick/qwiic-joystick.c
new file mode 100644
index 000000000..d4da31c06
--- /dev/null
+++ b/drivers/input/joystick/qwiic-joystick.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 Oleh Kravchenko <oleg@kaa.org.ua>
+ *
+ * SparkFun Qwiic Joystick
+ * Product page:https://www.sparkfun.com/products/15168
+ * Firmware and hardware sources:https://github.com/sparkfun/Qwiic_Joystick
+ */
+
+#include <linux/bits.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#define DRV_NAME "qwiic-joystick"
+
+#define QWIIC_JSK_REG_VERS	1
+#define QWIIC_JSK_REG_DATA	3
+
+#define QWIIC_JSK_MAX_AXIS	GENMASK(9, 0)
+#define QWIIC_JSK_FUZZ		2
+#define QWIIC_JSK_FLAT		2
+#define QWIIC_JSK_POLL_INTERVAL	16
+#define QWIIC_JSK_POLL_MIN	8
+#define QWIIC_JSK_POLL_MAX	32
+
+struct qwiic_jsk {
+	char phys[32];
+	struct input_dev *dev;
+	struct i2c_client *client;
+};
+
+struct qwiic_ver {
+	u8 major;
+	u8 minor;
+};
+
+struct qwiic_data {
+	__be16 x;
+	__be16 y;
+	u8 thumb;
+};
+
+static void qwiic_poll(struct input_dev *input)
+{
+	struct qwiic_jsk *priv = input_get_drvdata(input);
+	struct qwiic_data data;
+	int err;
+
+	err = i2c_smbus_read_i2c_block_data(priv->client, QWIIC_JSK_REG_DATA,
+					    sizeof(data), (u8 *)&data);
+	if (err != sizeof(data))
+		return;
+
+	input_report_abs(input, ABS_X, be16_to_cpu(data.x) >> 6);
+	input_report_abs(input, ABS_Y, be16_to_cpu(data.y) >> 6);
+	input_report_key(input, BTN_THUMBL, !data.thumb);
+	input_sync(input);
+}
+
+static int qwiic_probe(struct i2c_client *client)
+{
+	struct qwiic_jsk *priv;
+	struct qwiic_ver vers;
+	int err;
+
+	err = i2c_smbus_read_i2c_block_data(client, QWIIC_JSK_REG_VERS,
+					    sizeof(vers), (u8 *)&vers);
+	if (err < 0)
+		return err;
+	if (err != sizeof(vers))
+		return -EIO;
+
+	dev_dbg(&client->dev, "SparkFun Qwiic Joystick, FW: %u.%u\n",
+		vers.major, vers.minor);
+
+	priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->client = client;
+	snprintf(priv->phys, sizeof(priv->phys),
+		 "i2c/%s", dev_name(&client->dev));
+	i2c_set_clientdata(client, priv);
+
+	priv->dev = devm_input_allocate_device(&client->dev);
+	if (!priv->dev)
+		return -ENOMEM;
+
+	priv->dev->id.bustype = BUS_I2C;
+	priv->dev->name = "SparkFun Qwiic Joystick";
+	priv->dev->phys = priv->phys;
+	input_set_drvdata(priv->dev, priv);
+
+	input_set_abs_params(priv->dev, ABS_X, 0, QWIIC_JSK_MAX_AXIS,
+			     QWIIC_JSK_FUZZ, QWIIC_JSK_FLAT);
+	input_set_abs_params(priv->dev, ABS_Y, 0, QWIIC_JSK_MAX_AXIS,
+			     QWIIC_JSK_FUZZ, QWIIC_JSK_FLAT);
+	input_set_capability(priv->dev, EV_KEY, BTN_THUMBL);
+
+	err = input_setup_polling(priv->dev, qwiic_poll);
+	if (err) {
+		dev_err(&client->dev, "failed to set up polling: %d\n", err);
+		return err;
+	}
+	input_set_poll_interval(priv->dev, QWIIC_JSK_POLL_INTERVAL);
+	input_set_min_poll_interval(priv->dev, QWIIC_JSK_POLL_MIN);
+	input_set_max_poll_interval(priv->dev, QWIIC_JSK_POLL_MAX);
+
+	err = input_register_device(priv->dev);
+	if (err) {
+		dev_err(&client->dev, "failed to register joystick: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id of_qwiic_match[] = {
+	{ .compatible = "sparkfun,qwiic-joystick", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, of_qwiic_match);
+#endif /* CONFIG_OF */
+
+static const struct i2c_device_id qwiic_id_table[] = {
+	{ KBUILD_MODNAME, 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, qwiic_id_table);
+
+static struct i2c_driver qwiic_driver = {
+	.driver = {
+		.name		= DRV_NAME,
+		.of_match_table	= of_match_ptr(of_qwiic_match),
+	},
+	.id_table	= qwiic_id_table,
+	.probe_new	= qwiic_probe,
+};
+module_i2c_driver(qwiic_driver);
+
+MODULE_AUTHOR("Oleh Kravchenko <oleg@kaa.org.ua>");
+MODULE_DESCRIPTION("SparkFun Qwiic Joystick driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/joystick/sensehat-joystick.c b/drivers/input/joystick/sensehat-joystick.c
new file mode 100644
index 000000000..a84df39d3
--- /dev/null
+++ b/drivers/input/joystick/sensehat-joystick.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Raspberry Pi Sense HAT joystick driver
+ * http://raspberrypi.org
+ *
+ * Copyright (C) 2015 Raspberry Pi
+ * Copyright (C) 2021 Charles Mirabile, Mwesigwa Guma, Joel Savitz
+ *
+ * Original Author: Serge Schneider
+ * Revised for upstream Linux by: Charles Mirabile, Mwesigwa Guma, Joel Savitz
+ */
+
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/property.h>
+
+#define JOYSTICK_SMB_REG 0xf2
+
+struct sensehat_joystick {
+	struct platform_device *pdev;
+	struct input_dev *keys_dev;
+	unsigned long prev_states;
+	struct regmap *regmap;
+};
+
+static const unsigned int keymap[] = {
+	BTN_DPAD_DOWN, BTN_DPAD_RIGHT, BTN_DPAD_UP, BTN_SELECT, BTN_DPAD_LEFT,
+};
+
+static irqreturn_t sensehat_joystick_report(int irq, void *cookie)
+{
+	struct sensehat_joystick *sensehat_joystick = cookie;
+	unsigned long curr_states, changes;
+	unsigned int keys;
+	int error;
+	int i;
+
+	error = regmap_read(sensehat_joystick->regmap, JOYSTICK_SMB_REG, &keys);
+	if (error < 0) {
+		dev_err(&sensehat_joystick->pdev->dev,
+			"Failed to read joystick state: %d", error);
+		return IRQ_NONE;
+	}
+	curr_states = keys;
+	bitmap_xor(&changes, &curr_states, &sensehat_joystick->prev_states,
+		   ARRAY_SIZE(keymap));
+
+	for_each_set_bit(i, &changes, ARRAY_SIZE(keymap))
+		input_report_key(sensehat_joystick->keys_dev, keymap[i],
+				 curr_states & BIT(i));
+
+	input_sync(sensehat_joystick->keys_dev);
+	sensehat_joystick->prev_states = keys;
+	return IRQ_HANDLED;
+}
+
+static int sensehat_joystick_probe(struct platform_device *pdev)
+{
+	struct sensehat_joystick *sensehat_joystick;
+	int error, i, irq;
+
+	sensehat_joystick = devm_kzalloc(&pdev->dev, sizeof(*sensehat_joystick),
+					 GFP_KERNEL);
+	if (!sensehat_joystick)
+		return -ENOMEM;
+
+	sensehat_joystick->pdev = pdev;
+
+	sensehat_joystick->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!sensehat_joystick->regmap) {
+		dev_err(&pdev->dev, "unable to get sensehat regmap");
+		return -ENODEV;
+	}
+
+	sensehat_joystick->keys_dev = devm_input_allocate_device(&pdev->dev);
+	if (!sensehat_joystick->keys_dev) {
+		dev_err(&pdev->dev, "Could not allocate input device");
+		return -ENOMEM;
+	}
+
+	sensehat_joystick->keys_dev->name = "Raspberry Pi Sense HAT Joystick";
+	sensehat_joystick->keys_dev->phys = "sensehat-joystick/input0";
+	sensehat_joystick->keys_dev->id.bustype = BUS_I2C;
+
+	__set_bit(EV_KEY, sensehat_joystick->keys_dev->evbit);
+	__set_bit(EV_REP, sensehat_joystick->keys_dev->evbit);
+	for (i = 0; i < ARRAY_SIZE(keymap); i++)
+		__set_bit(keymap[i], sensehat_joystick->keys_dev->keybit);
+
+	error = input_register_device(sensehat_joystick->keys_dev);
+	if (error) {
+		dev_err(&pdev->dev, "Could not register input device");
+		return error;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	error = devm_request_threaded_irq(&pdev->dev, irq,
+					  NULL, sensehat_joystick_report,
+					  IRQF_ONESHOT, "keys",
+					  sensehat_joystick);
+	if (error) {
+		dev_err(&pdev->dev, "IRQ request failed");
+		return error;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id sensehat_joystick_device_id[] = {
+	{ .compatible = "raspberrypi,sensehat-joystick" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, sensehat_joystick_device_id);
+
+static struct platform_driver sensehat_joystick_driver = {
+	.probe = sensehat_joystick_probe,
+	.driver = {
+		.name = "sensehat-joystick",
+		.of_match_table = sensehat_joystick_device_id,
+	},
+};
+
+module_platform_driver(sensehat_joystick_driver);
+
+MODULE_DESCRIPTION("Raspberry Pi Sense HAT joystick driver");
+MODULE_AUTHOR("Charles Mirabile <cmirabil@redhat.com>");
+MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
new file mode 100644
index 000000000..7282301c3
--- /dev/null
+++ b/drivers/input/joystick/sidewinder.c
@@ -0,0 +1,809 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1998-2005 Vojtech Pavlik
+ */
+
+/*
+ * Microsoft SideWinder joystick family driver for Linux
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/gameport.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"Microsoft SideWinder joystick family driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * These are really magic values. Changing them can make a problem go away,
+ * as well as break everything.
+ */
+
+#undef SW_DEBUG
+#undef SW_DEBUG_DATA
+
+#define SW_START	600	/* The time we wait for the first bit [600 us] */
+#define SW_STROBE	60	/* Max time per bit [60 us] */
+#define SW_TIMEOUT	6	/* Wait for everything to settle [6 ms] */
+#define SW_KICK		45	/* Wait after A0 fall till kick [45 us] */
+#define SW_END		8	/* Number of bits before end of packet to kick */
+#define SW_FAIL		16	/* Number of packet read errors to fail and reinitialize */
+#define SW_BAD		2	/* Number of packet read errors to switch off 3d Pro optimization */
+#define SW_OK		64	/* Number of packet read successes to switch optimization back on */
+#define SW_LENGTH	512	/* Max number of bits in a packet */
+
+#ifdef SW_DEBUG
+#define dbg(format, arg...) printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg)
+#else
+#define dbg(format, arg...) do {} while (0)
+#endif
+
+/*
+ * SideWinder joystick types ...
+ */
+
+#define SW_ID_3DP	0
+#define SW_ID_GP	1
+#define SW_ID_PP	2
+#define SW_ID_FFP	3
+#define SW_ID_FSP	4
+#define SW_ID_FFW	5
+
+/*
+ * Names, buttons, axes ...
+ */
+
+static char *sw_name[] = {	"3D Pro", "GamePad", "Precision Pro", "Force Feedback Pro", "FreeStyle Pro",
+				"Force Feedback Wheel" };
+
+static char sw_abs[][7] = {
+	{ ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
+	{ ABS_X, ABS_Y },
+	{ ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
+	{ ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
+	{ ABS_X, ABS_Y,         ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
+	{ ABS_RX, ABS_RUDDER,   ABS_THROTTLE }};
+
+static char sw_bit[][7] = {
+	{ 10, 10,  9, 10,  1,  1 },
+	{  1,  1                 },
+	{ 10, 10,  6,  7,  1,  1 },
+	{ 10, 10,  6,  7,  1,  1 },
+	{ 10, 10,  6,  1,  1     },
+	{ 10,  7,  7,  1,  1     }};
+
+static short sw_btn[][12] = {
+	{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_THUMB2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_MODE },
+	{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START, BTN_MODE },
+	{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_SELECT },
+	{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_SELECT },
+	{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START, BTN_MODE, BTN_SELECT },
+	{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_THUMB2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4 }};
+
+static struct {
+	int x;
+	int y;
+} sw_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+struct sw {
+	struct gameport *gameport;
+	struct input_dev *dev[4];
+	char name[64];
+	char phys[4][32];
+	int length;
+	int type;
+	int bits;
+	int number;
+	int fail;
+	int ok;
+	int reads;
+	int bads;
+};
+
+/*
+ * sw_read_packet() is a function which reads either a data packet, or an
+ * identification packet from a SideWinder joystick. The protocol is very,
+ * very, very braindamaged. Microsoft patented it in US patent #5628686.
+ */
+
+static int sw_read_packet(struct gameport *gameport, unsigned char *buf, int length, int id)
+{
+	unsigned long flags;
+	int timeout, bitout, sched, i, kick, start, strobe;
+	unsigned char pending, u, v;
+
+	i = -id;						/* Don't care about data, only want ID */
+	timeout = id ? gameport_time(gameport, SW_TIMEOUT * 1000) : 0; /* Set up global timeout for ID packet */
+	kick = id ? gameport_time(gameport, SW_KICK) : 0;	/* Set up kick timeout for ID packet */
+	start = gameport_time(gameport, SW_START);
+	strobe = gameport_time(gameport, SW_STROBE);
+	bitout = start;
+	pending = 0;
+	sched = 0;
+
+        local_irq_save(flags);					/* Quiet, please */
+
+	gameport_trigger(gameport);				/* Trigger */
+	v = gameport_read(gameport);
+
+	do {
+		bitout--;
+		u = v;
+		v = gameport_read(gameport);
+	} while (!(~v & u & 0x10) && (bitout > 0));		/* Wait for first falling edge on clock */
+
+	if (bitout > 0)
+		bitout = strobe;				/* Extend time if not timed out */
+
+	while ((timeout > 0 || bitout > 0) && (i < length)) {
+
+		timeout--;
+		bitout--;					/* Decrement timers */
+		sched--;
+
+		u = v;
+		v = gameport_read(gameport);
+
+		if ((~u & v & 0x10) && (bitout > 0)) {		/* Rising edge on clock - data bit */
+			if (i >= 0)				/* Want this data */
+				buf[i] = v >> 5;		/* Store it */
+			i++;					/* Advance index */
+			bitout = strobe;			/* Extend timeout for next bit */
+		}
+
+		if (kick && (~v & u & 0x01)) {			/* Falling edge on axis 0 */
+			sched = kick;				/* Schedule second trigger */
+			kick = 0;				/* Don't schedule next time on falling edge */
+			pending = 1;				/* Mark schedule */
+		}
+
+		if (pending && sched < 0 && (i > -SW_END)) {	/* Second trigger time */
+			gameport_trigger(gameport);		/* Trigger */
+			bitout = start;				/* Long bit timeout */
+			pending = 0;				/* Unmark schedule */
+			timeout = 0;				/* Switch from global to bit timeouts */
+		}
+	}
+
+	local_irq_restore(flags);					/* Done - relax */
+
+#ifdef SW_DEBUG_DATA
+	{
+		int j;
+		printk(KERN_DEBUG "sidewinder.c: Read %d triplets. [", i);
+		for (j = 0; j < i; j++) printk("%d", buf[j]);
+		printk("]\n");
+	}
+#endif
+
+	return i;
+}
+
+/*
+ * sw_get_bits() and GB() compose bits from the triplet buffer into a __u64.
+ * Parameter 'pos' is bit number inside packet where to start at, 'num' is number
+ * of bits to be read, 'shift' is offset in the resulting __u64 to start at, bits
+ * is number of bits per triplet.
+ */
+
+#define GB(pos,num) sw_get_bits(buf, pos, num, sw->bits)
+
+static __u64 sw_get_bits(unsigned char *buf, int pos, int num, char bits)
+{
+	__u64 data = 0;
+	int tri = pos % bits;						/* Start position */
+	int i   = pos / bits;
+	int bit = 0;
+
+	while (num--) {
+		data |= (__u64)((buf[i] >> tri++) & 1) << bit++;	/* Transfer bit */
+		if (tri == bits) {
+			i++;						/* Next triplet */
+			tri = 0;
+		}
+	}
+
+	return data;
+}
+
+/*
+ * sw_init_digital() initializes a SideWinder 3D Pro joystick
+ * into digital mode.
+ */
+
+static void sw_init_digital(struct gameport *gameport)
+{
+	static const int seq[] = { 140, 140+725, 140+300, 0 };
+	unsigned long flags;
+	int i, t;
+
+        local_irq_save(flags);
+
+	i = 0;
+        do {
+                gameport_trigger(gameport);			/* Trigger */
+		t = gameport_time(gameport, SW_TIMEOUT * 1000);
+		while ((gameport_read(gameport) & 1) && t) t--;	/* Wait for axis to fall back to 0 */
+                udelay(seq[i]);					/* Delay magic time */
+        } while (seq[++i]);
+
+	gameport_trigger(gameport);				/* Last trigger */
+
+	local_irq_restore(flags);
+}
+
+/*
+ * sw_parity() computes parity of __u64
+ */
+
+static int sw_parity(__u64 t)
+{
+	int x = t ^ (t >> 32);
+
+	x ^= x >> 16;
+	x ^= x >> 8;
+	x ^= x >> 4;
+	x ^= x >> 2;
+	x ^= x >> 1;
+	return x & 1;
+}
+
+/*
+ * sw_ccheck() checks synchronization bits and computes checksum of nibbles.
+ */
+
+static int sw_check(__u64 t)
+{
+	unsigned char sum = 0;
+
+	if ((t & 0x8080808080808080ULL) ^ 0x80)			/* Sync */
+		return -1;
+
+	while (t) {						/* Sum */
+		sum += t & 0xf;
+		t >>= 4;
+	}
+
+	return sum & 0xf;
+}
+
+/*
+ * sw_parse() analyzes SideWinder joystick data, and writes the results into
+ * the axes and buttons arrays.
+ */
+
+static int sw_parse(unsigned char *buf, struct sw *sw)
+{
+	int hat, i, j;
+	struct input_dev *dev;
+
+	switch (sw->type) {
+
+		case SW_ID_3DP:
+
+			if (sw_check(GB(0,64)) || (hat = (GB(6,1) << 3) | GB(60,3)) > 8)
+				return -1;
+
+			dev = sw->dev[0];
+
+			input_report_abs(dev, ABS_X,        (GB( 3,3) << 7) | GB(16,7));
+			input_report_abs(dev, ABS_Y,        (GB( 0,3) << 7) | GB(24,7));
+			input_report_abs(dev, ABS_RZ,       (GB(35,2) << 7) | GB(40,7));
+			input_report_abs(dev, ABS_THROTTLE, (GB(32,3) << 7) | GB(48,7));
+
+			input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x);
+			input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y);
+
+			for (j = 0; j < 7; j++)
+				input_report_key(dev, sw_btn[SW_ID_3DP][j], !GB(j+8,1));
+
+			input_report_key(dev, BTN_BASE4, !GB(38,1));
+			input_report_key(dev, BTN_BASE5, !GB(37,1));
+
+			input_sync(dev);
+
+			return 0;
+
+		case SW_ID_GP:
+
+			for (i = 0; i < sw->number; i ++) {
+
+				if (sw_parity(GB(i*15,15)))
+					return -1;
+
+				input_report_abs(sw->dev[i], ABS_X, GB(i*15+3,1) - GB(i*15+2,1));
+				input_report_abs(sw->dev[i], ABS_Y, GB(i*15+0,1) - GB(i*15+1,1));
+
+				for (j = 0; j < 10; j++)
+					input_report_key(sw->dev[i], sw_btn[SW_ID_GP][j], !GB(i*15+j+4,1));
+
+				input_sync(sw->dev[i]);
+			}
+
+			return 0;
+
+		case SW_ID_PP:
+		case SW_ID_FFP:
+
+			if (!sw_parity(GB(0,48)) || (hat = GB(42,4)) > 8)
+				return -1;
+
+			dev = sw->dev[0];
+			input_report_abs(dev, ABS_X,        GB( 9,10));
+			input_report_abs(dev, ABS_Y,        GB(19,10));
+			input_report_abs(dev, ABS_RZ,       GB(36, 6));
+			input_report_abs(dev, ABS_THROTTLE, GB(29, 7));
+
+			input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x);
+			input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y);
+
+			for (j = 0; j < 9; j++)
+				input_report_key(dev, sw_btn[SW_ID_PP][j], !GB(j,1));
+
+			input_sync(dev);
+
+			return 0;
+
+		case SW_ID_FSP:
+
+			if (!sw_parity(GB(0,43)) || (hat = GB(28,4)) > 8)
+				return -1;
+
+			dev = sw->dev[0];
+			input_report_abs(dev, ABS_X,        GB( 0,10));
+			input_report_abs(dev, ABS_Y,        GB(16,10));
+			input_report_abs(dev, ABS_THROTTLE, GB(32, 6));
+
+			input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x);
+			input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y);
+
+			for (j = 0; j < 6; j++)
+				input_report_key(dev, sw_btn[SW_ID_FSP][j], !GB(j+10,1));
+
+			input_report_key(dev, BTN_TR,     !GB(26,1));
+			input_report_key(dev, BTN_START,  !GB(27,1));
+			input_report_key(dev, BTN_MODE,   !GB(38,1));
+			input_report_key(dev, BTN_SELECT, !GB(39,1));
+
+			input_sync(dev);
+
+			return 0;
+
+		case SW_ID_FFW:
+
+			if (!sw_parity(GB(0,33)))
+				return -1;
+
+			dev = sw->dev[0];
+			input_report_abs(dev, ABS_RX,       GB( 0,10));
+			input_report_abs(dev, ABS_RUDDER,   GB(10, 6));
+			input_report_abs(dev, ABS_THROTTLE, GB(16, 6));
+
+			for (j = 0; j < 8; j++)
+				input_report_key(dev, sw_btn[SW_ID_FFW][j], !GB(j+22,1));
+
+			input_sync(dev);
+
+			return 0;
+	}
+
+	return -1;
+}
+
+/*
+ * sw_read() reads SideWinder joystick data, and reinitializes
+ * the joystick in case of persistent problems. This is the function that is
+ * called from the generic code to poll the joystick.
+ */
+
+static int sw_read(struct sw *sw)
+{
+	unsigned char buf[SW_LENGTH];
+	int i;
+
+	i = sw_read_packet(sw->gameport, buf, sw->length, 0);
+
+	if (sw->type == SW_ID_3DP && sw->length == 66 && i != 66) {		/* Broken packet, try to fix */
+
+		if (i == 64 && !sw_check(sw_get_bits(buf,0,64,1))) {		/* Last init failed, 1 bit mode */
+			printk(KERN_WARNING "sidewinder.c: Joystick in wrong mode on %s"
+				" - going to reinitialize.\n", sw->gameport->phys);
+			sw->fail = SW_FAIL;					/* Reinitialize */
+			i = 128;						/* Bogus value */
+		}
+
+		if (i < 66 && GB(0,64) == GB(i*3-66,64))			/* 1 == 3 */
+			i = 66;							/* Everything is fine */
+
+		if (i < 66 && GB(0,64) == GB(66,64))				/* 1 == 2 */
+			i = 66;							/* Everything is fine */
+
+		if (i < 66 && GB(i*3-132,64) == GB(i*3-66,64)) {		/* 2 == 3 */
+			memmove(buf, buf + i - 22, 22);				/* Move data */
+			i = 66;							/* Carry on */
+		}
+	}
+
+	if (i == sw->length && !sw_parse(buf, sw)) {				/* Parse data */
+
+		sw->fail = 0;
+		sw->ok++;
+
+		if (sw->type == SW_ID_3DP && sw->length == 66			/* Many packets OK */
+			&& sw->ok > SW_OK) {
+
+			printk(KERN_INFO "sidewinder.c: No more trouble on %s"
+				" - enabling optimization again.\n", sw->gameport->phys);
+			sw->length = 22;
+		}
+
+		return 0;
+	}
+
+	sw->ok = 0;
+	sw->fail++;
+
+	if (sw->type == SW_ID_3DP && sw->length == 22 && sw->fail > SW_BAD) {	/* Consecutive bad packets */
+
+		printk(KERN_INFO "sidewinder.c: Many bit errors on %s"
+			" - disabling optimization.\n", sw->gameport->phys);
+		sw->length = 66;
+	}
+
+	if (sw->fail < SW_FAIL)
+		return -1;							/* Not enough, don't reinitialize yet */
+
+	printk(KERN_WARNING "sidewinder.c: Too many bit errors on %s"
+		" - reinitializing joystick.\n", sw->gameport->phys);
+
+	if (!i && sw->type == SW_ID_3DP) {					/* 3D Pro can be in analog mode */
+		mdelay(3 * SW_TIMEOUT);
+		sw_init_digital(sw->gameport);
+	}
+
+	mdelay(SW_TIMEOUT);
+	i = sw_read_packet(sw->gameport, buf, SW_LENGTH, 0);			/* Read normal data packet */
+	mdelay(SW_TIMEOUT);
+	sw_read_packet(sw->gameport, buf, SW_LENGTH, i);			/* Read ID packet, this initializes the stick */
+
+	sw->fail = SW_FAIL;
+
+	return -1;
+}
+
+static void sw_poll(struct gameport *gameport)
+{
+	struct sw *sw = gameport_get_drvdata(gameport);
+
+	sw->reads++;
+	if (sw_read(sw))
+		sw->bads++;
+}
+
+static int sw_open(struct input_dev *dev)
+{
+	struct sw *sw = input_get_drvdata(dev);
+
+	gameport_start_polling(sw->gameport);
+	return 0;
+}
+
+static void sw_close(struct input_dev *dev)
+{
+	struct sw *sw = input_get_drvdata(dev);
+
+	gameport_stop_polling(sw->gameport);
+}
+
+/*
+ * sw_print_packet() prints the contents of a SideWinder packet.
+ */
+
+static void sw_print_packet(char *name, int length, unsigned char *buf, char bits)
+{
+	int i;
+
+	printk(KERN_INFO "sidewinder.c: %s packet, %d bits. [", name, length);
+	for (i = (((length + 3) >> 2) - 1); i >= 0; i--)
+		printk("%x", (int)sw_get_bits(buf, i << 2, 4, bits));
+	printk("]\n");
+}
+
+/*
+ * sw_3dp_id() translates the 3DP id into a human legible string.
+ * Unfortunately I don't know how to do this for the other SW types.
+ */
+
+static void sw_3dp_id(unsigned char *buf, char *comment, size_t size)
+{
+	int i;
+	char pnp[8], rev[9];
+
+	for (i = 0; i < 7; i++)						/* ASCII PnP ID */
+		pnp[i] = sw_get_bits(buf, 24+8*i, 8, 1);
+
+	for (i = 0; i < 8; i++)						/* ASCII firmware revision */
+		rev[i] = sw_get_bits(buf, 88+8*i, 8, 1);
+
+	pnp[7] = rev[8] = 0;
+
+	snprintf(comment, size, " [PnP %d.%02d id %s rev %s]",
+		(int) ((sw_get_bits(buf, 8, 6, 1) << 6) |		/* Two 6-bit values */
+			sw_get_bits(buf, 16, 6, 1)) / 100,
+		(int) ((sw_get_bits(buf, 8, 6, 1) << 6) |
+			sw_get_bits(buf, 16, 6, 1)) % 100,
+		 pnp, rev);
+}
+
+/*
+ * sw_guess_mode() checks the upper two button bits for toggling -
+ * indication of that the joystick is in 3-bit mode. This is documented
+ * behavior for 3DP ID packet, and for example the FSP does this in
+ * normal packets instead. Fun ...
+ */
+
+static int sw_guess_mode(unsigned char *buf, int len)
+{
+	int i;
+	unsigned char xor = 0;
+
+	for (i = 1; i < len; i++)
+		xor |= (buf[i - 1] ^ buf[i]) & 6;
+
+	return !!xor * 2 + 1;
+}
+
+/*
+ * sw_connect() probes for SideWinder type joysticks.
+ */
+
+static int sw_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	struct sw *sw;
+	struct input_dev *input_dev;
+	int i, j, k, l;
+	int err = 0;
+	unsigned char *buf = NULL;	/* [SW_LENGTH] */
+	unsigned char *idbuf = NULL;	/* [SW_LENGTH] */
+	unsigned char m = 1;
+	char comment[40];
+
+	comment[0] = 0;
+
+	sw = kzalloc(sizeof(struct sw), GFP_KERNEL);
+	buf = kmalloc(SW_LENGTH, GFP_KERNEL);
+	idbuf = kmalloc(SW_LENGTH, GFP_KERNEL);
+	if (!sw || !buf || !idbuf) {
+		err = -ENOMEM;
+		goto fail1;
+	}
+
+	sw->gameport = gameport;
+
+	gameport_set_drvdata(gameport, sw);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	dbg("Init 0: Opened %s, io %#x, speed %d",
+		gameport->phys, gameport->io, gameport->speed);
+
+	i = sw_read_packet(gameport, buf, SW_LENGTH, 0);		/* Read normal packet */
+	msleep(SW_TIMEOUT);
+	dbg("Init 1: Mode %d. Length %d.", m , i);
+
+	if (!i) {							/* No data. 3d Pro analog mode? */
+		sw_init_digital(gameport);				/* Switch to digital */
+		msleep(SW_TIMEOUT);
+		i = sw_read_packet(gameport, buf, SW_LENGTH, 0);	/* Retry reading packet */
+		msleep(SW_TIMEOUT);
+		dbg("Init 1b: Length %d.", i);
+		if (!i) {						/* No data -> FAIL */
+			err = -ENODEV;
+			goto fail2;
+		}
+	}
+
+	j = sw_read_packet(gameport, idbuf, SW_LENGTH, i);		/* Read ID. This initializes the stick */
+	m |= sw_guess_mode(idbuf, j);					/* ID packet should carry mode info [3DP] */
+	dbg("Init 2: Mode %d. ID Length %d.", m, j);
+
+	if (j <= 0) {							/* Read ID failed. Happens in 1-bit mode on PP */
+		msleep(SW_TIMEOUT);
+		i = sw_read_packet(gameport, buf, SW_LENGTH, 0);	/* Retry reading packet */
+		m |= sw_guess_mode(buf, i);
+		dbg("Init 2b: Mode %d. Length %d.", m, i);
+		if (!i) {
+			err = -ENODEV;
+			goto fail2;
+		}
+		msleep(SW_TIMEOUT);
+		j = sw_read_packet(gameport, idbuf, SW_LENGTH, i);	/* Retry reading ID */
+		dbg("Init 2c: ID Length %d.", j);
+	}
+
+	sw->type = -1;
+	k = SW_FAIL;							/* Try SW_FAIL times */
+	l = 0;
+
+	do {
+		k--;
+		msleep(SW_TIMEOUT);
+		i = sw_read_packet(gameport, buf, SW_LENGTH, 0);	/* Read data packet */
+		dbg("Init 3: Mode %d. Length %d. Last %d. Tries %d.", m, i, l, k);
+
+		if (i > l) {						/* Longer? As we can only lose bits, it makes */
+									/* no sense to try detection for a packet shorter */
+			l = i;						/* than the previous one */
+
+			sw->number = 1;
+			sw->gameport = gameport;
+			sw->length = i;
+			sw->bits = m;
+
+			dbg("Init 3a: Case %d.\n", i * m);
+
+			switch (i * m) {
+				case 60:
+					sw->number++;
+					fallthrough;
+				case 45:				/* Ambiguous packet length */
+					if (j <= 40) {			/* ID length less or eq 40 -> FSP */
+					fallthrough;
+				case 43:
+						sw->type = SW_ID_FSP;
+						break;
+					}
+					sw->number++;
+					fallthrough;
+				case 30:
+					sw->number++;
+					fallthrough;
+				case 15:
+					sw->type = SW_ID_GP;
+					break;
+				case 33:
+				case 31:
+					sw->type = SW_ID_FFW;
+					break;
+				case 48:				/* Ambiguous */
+					if (j == 14) {			/* ID length 14*3 -> FFP */
+						sw->type = SW_ID_FFP;
+						sprintf(comment, " [AC %s]", sw_get_bits(idbuf,38,1,3) ? "off" : "on");
+					} else
+						sw->type = SW_ID_PP;
+					break;
+				case 66:
+					sw->bits = 3;
+					fallthrough;
+				case 198:
+					sw->length = 22;
+					fallthrough;
+				case 64:
+					sw->type = SW_ID_3DP;
+					if (j == 160)
+						sw_3dp_id(idbuf, comment, sizeof(comment));
+					break;
+			}
+		}
+
+	} while (k && sw->type == -1);
+
+	if (sw->type == -1) {
+		printk(KERN_WARNING "sidewinder.c: unknown joystick device detected "
+			"on %s, contact <vojtech@ucw.cz>\n", gameport->phys);
+		sw_print_packet("ID", j * 3, idbuf, 3);
+		sw_print_packet("Data", i * m, buf, m);
+		err = -ENODEV;
+		goto fail2;
+	}
+
+#ifdef SW_DEBUG
+	sw_print_packet("ID", j * 3, idbuf, 3);
+	sw_print_packet("Data", i * m, buf, m);
+#endif
+
+	gameport_set_poll_handler(gameport, sw_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	k = i;
+	l = j;
+
+	for (i = 0; i < sw->number; i++) {
+		int bits, code;
+
+		snprintf(sw->name, sizeof(sw->name),
+			 "Microsoft SideWinder %s", sw_name[sw->type]);
+		snprintf(sw->phys[i], sizeof(sw->phys[i]),
+			 "%s/input%d", gameport->phys, i);
+
+		sw->dev[i] = input_dev = input_allocate_device();
+		if (!input_dev) {
+			err = -ENOMEM;
+			goto fail3;
+		}
+
+		input_dev->name = sw->name;
+		input_dev->phys = sw->phys[i];
+		input_dev->id.bustype = BUS_GAMEPORT;
+		input_dev->id.vendor = GAMEPORT_ID_VENDOR_MICROSOFT;
+		input_dev->id.product = sw->type;
+		input_dev->id.version = 0x0100;
+		input_dev->dev.parent = &gameport->dev;
+
+		input_set_drvdata(input_dev, sw);
+
+		input_dev->open = sw_open;
+		input_dev->close = sw_close;
+
+		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+		for (j = 0; (bits = sw_bit[sw->type][j]); j++) {
+			int min, max, fuzz, flat;
+
+			code = sw_abs[sw->type][j];
+			min = bits == 1 ? -1 : 0;
+			max = (1 << bits) - 1;
+			fuzz = (bits >> 1) >= 2 ? 1 << ((bits >> 1) - 2) : 0;
+			flat = code == ABS_THROTTLE || bits < 5 ?
+				0 : 1 << (bits - 5);
+
+			input_set_abs_params(input_dev, code,
+					     min, max, fuzz, flat);
+		}
+
+		for (j = 0; (code = sw_btn[sw->type][j]); j++)
+			__set_bit(code, input_dev->keybit);
+
+		dbg("%s%s [%d-bit id %d data %d]\n", sw->name, comment, m, l, k);
+
+		err = input_register_device(sw->dev[i]);
+		if (err)
+			goto fail4;
+	}
+
+ out:	kfree(buf);
+	kfree(idbuf);
+
+	return err;
+
+ fail4:	input_free_device(sw->dev[i]);
+ fail3:	while (--i >= 0)
+		input_unregister_device(sw->dev[i]);
+ fail2:	gameport_close(gameport);
+ fail1:	gameport_set_drvdata(gameport, NULL);
+	kfree(sw);
+	goto out;
+}
+
+static void sw_disconnect(struct gameport *gameport)
+{
+	struct sw *sw = gameport_get_drvdata(gameport);
+	int i;
+
+	for (i = 0; i < sw->number; i++)
+		input_unregister_device(sw->dev[i]);
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	kfree(sw);
+}
+
+static struct gameport_driver sw_drv = {
+	.driver		= {
+		.name	= "sidewinder",
+		.owner	= THIS_MODULE,
+	},
+	.description	= DRIVER_DESC,
+	.connect	= sw_connect,
+	.disconnect	= sw_disconnect,
+};
+
+module_gameport_driver(sw_drv);
diff --git a/drivers/input/joystick/spaceball.c b/drivers/input/joystick/spaceball.c
new file mode 100644
index 000000000..fa8ec533c
--- /dev/null
+++ b/drivers/input/joystick/spaceball.c
@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *	David Thompson
+ *	Joseph Krahn
+ */
+
+/*
+ * SpaceTec SpaceBall 2003/3003/4000 FLX driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <asm/unaligned.h>
+
+#define DRIVER_DESC	"SpaceTec SpaceBall 2003/3003/4000 FLX driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define SPACEBALL_MAX_LENGTH	128
+#define SPACEBALL_MAX_ID	9
+
+#define SPACEBALL_1003      1
+#define SPACEBALL_2003B     3
+#define SPACEBALL_2003C     4
+#define SPACEBALL_3003C     7
+#define SPACEBALL_4000FLX   8
+#define SPACEBALL_4000FLX_L 9
+
+static int spaceball_axes[] = { ABS_X, ABS_Z, ABS_Y, ABS_RX, ABS_RZ, ABS_RY };
+static char *spaceball_names[] = {
+	"?", "SpaceTec SpaceBall 1003", "SpaceTec SpaceBall 2003", "SpaceTec SpaceBall 2003B",
+	"SpaceTec SpaceBall 2003C", "SpaceTec SpaceBall 3003", "SpaceTec SpaceBall SpaceController",
+	"SpaceTec SpaceBall 3003C", "SpaceTec SpaceBall 4000FLX", "SpaceTec SpaceBall 4000FLX Lefty" };
+
+/*
+ * Per-Ball data.
+ */
+
+struct spaceball {
+	struct input_dev *dev;
+	int idx;
+	int escape;
+	unsigned char data[SPACEBALL_MAX_LENGTH];
+	char phys[32];
+};
+
+/*
+ * spaceball_process_packet() decodes packets the driver receives from the
+ * SpaceBall.
+ */
+
+static void spaceball_process_packet(struct spaceball* spaceball)
+{
+	struct input_dev *dev = spaceball->dev;
+	unsigned char *data = spaceball->data;
+	int i;
+
+	if (spaceball->idx < 2) return;
+
+	switch (spaceball->data[0]) {
+
+		case 'D':					/* Ball data */
+			if (spaceball->idx != 15) return;
+			/*
+			 * Skip first three bytes; read six axes worth of data.
+			 * Axis values are signed 16-bit big-endian.
+			 */
+			data += 3;
+			for (i = 0; i < ARRAY_SIZE(spaceball_axes); i++) {
+				input_report_abs(dev, spaceball_axes[i],
+					(__s16)get_unaligned_be16(&data[i * 2]));
+			}
+			break;
+
+		case 'K':					/* Button data */
+			if (spaceball->idx != 3) return;
+			input_report_key(dev, BTN_1, (data[2] & 0x01) || (data[2] & 0x20));
+			input_report_key(dev, BTN_2, data[2] & 0x02);
+			input_report_key(dev, BTN_3, data[2] & 0x04);
+			input_report_key(dev, BTN_4, data[2] & 0x08);
+			input_report_key(dev, BTN_5, data[1] & 0x01);
+			input_report_key(dev, BTN_6, data[1] & 0x02);
+			input_report_key(dev, BTN_7, data[1] & 0x04);
+			input_report_key(dev, BTN_8, data[1] & 0x10);
+			break;
+
+		case '.':					/* Advanced button data */
+			if (spaceball->idx != 3) return;
+			input_report_key(dev, BTN_1, data[2] & 0x01);
+			input_report_key(dev, BTN_2, data[2] & 0x02);
+			input_report_key(dev, BTN_3, data[2] & 0x04);
+			input_report_key(dev, BTN_4, data[2] & 0x08);
+			input_report_key(dev, BTN_5, data[2] & 0x10);
+			input_report_key(dev, BTN_6, data[2] & 0x20);
+			input_report_key(dev, BTN_7, data[2] & 0x80);
+			input_report_key(dev, BTN_8, data[1] & 0x01);
+			input_report_key(dev, BTN_9, data[1] & 0x02);
+			input_report_key(dev, BTN_A, data[1] & 0x04);
+			input_report_key(dev, BTN_B, data[1] & 0x08);
+			input_report_key(dev, BTN_C, data[1] & 0x10);
+			input_report_key(dev, BTN_MODE, data[1] & 0x20);
+			break;
+
+		case 'E':					/* Device error */
+			spaceball->data[spaceball->idx - 1] = 0;
+			printk(KERN_ERR "spaceball: Device error. [%s]\n", spaceball->data + 1);
+			break;
+
+		case '?':					/* Bad command packet */
+			spaceball->data[spaceball->idx - 1] = 0;
+			printk(KERN_ERR "spaceball: Bad command. [%s]\n", spaceball->data + 1);
+			break;
+	}
+
+	input_sync(dev);
+}
+
+/*
+ * Spaceball 4000 FLX packets all start with a one letter packet-type decriptor,
+ * and end in 0x0d. It uses '^' as an escape for CR, XOFF and XON characters which
+ * can occur in the axis values.
+ */
+
+static irqreturn_t spaceball_interrupt(struct serio *serio,
+		unsigned char data, unsigned int flags)
+{
+	struct spaceball *spaceball = serio_get_drvdata(serio);
+
+	switch (data) {
+		case 0xd:
+			spaceball_process_packet(spaceball);
+			spaceball->idx = 0;
+			spaceball->escape = 0;
+			break;
+		case '^':
+			if (!spaceball->escape) {
+				spaceball->escape = 1;
+				break;
+			}
+			spaceball->escape = 0;
+			fallthrough;
+		case 'M':
+		case 'Q':
+		case 'S':
+			if (spaceball->escape) {
+				spaceball->escape = 0;
+				data &= 0x1f;
+			}
+			fallthrough;
+		default:
+			if (spaceball->escape)
+				spaceball->escape = 0;
+			if (spaceball->idx < SPACEBALL_MAX_LENGTH)
+				spaceball->data[spaceball->idx++] = data;
+			break;
+	}
+	return IRQ_HANDLED;
+}
+
+/*
+ * spaceball_disconnect() is the opposite of spaceball_connect()
+ */
+
+static void spaceball_disconnect(struct serio *serio)
+{
+	struct spaceball* spaceball = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(spaceball->dev);
+	kfree(spaceball);
+}
+
+/*
+ * spaceball_connect() is the routine that is called when someone adds a
+ * new serio device that supports Spaceball protocol and registers it as
+ * an input device.
+ */
+
+static int spaceball_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct spaceball *spaceball;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+	int i, id;
+
+	if ((id = serio->id.id) > SPACEBALL_MAX_ID)
+		return -ENODEV;
+
+	spaceball = kmalloc(sizeof(struct spaceball), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!spaceball || !input_dev)
+		goto fail1;
+
+	spaceball->dev = input_dev;
+	snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys);
+
+	input_dev->name = spaceball_names[id];
+	input_dev->phys = spaceball->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_SPACEBALL;
+	input_dev->id.product = id;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	switch (id) {
+		case SPACEBALL_4000FLX:
+		case SPACEBALL_4000FLX_L:
+			input_dev->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_9);
+			input_dev->keybit[BIT_WORD(BTN_A)] |= BIT_MASK(BTN_A) |
+				BIT_MASK(BTN_B) | BIT_MASK(BTN_C) |
+				BIT_MASK(BTN_MODE);
+			fallthrough;
+		default:
+			input_dev->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_2) |
+				BIT_MASK(BTN_3) | BIT_MASK(BTN_4) |
+				BIT_MASK(BTN_5) | BIT_MASK(BTN_6) |
+				BIT_MASK(BTN_7) | BIT_MASK(BTN_8);
+			fallthrough;
+		case SPACEBALL_3003C:
+			input_dev->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_1) |
+				BIT_MASK(BTN_8);
+	}
+
+	for (i = 0; i < 3; i++) {
+		input_set_abs_params(input_dev, ABS_X + i, -8000, 8000, 8, 40);
+		input_set_abs_params(input_dev, ABS_RX + i, -1600, 1600, 2, 8);
+	}
+
+	serio_set_drvdata(serio, spaceball);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(spaceball->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(spaceball);
+	return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id spaceball_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_SPACEBALL,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, spaceball_serio_ids);
+
+static struct serio_driver spaceball_drv = {
+	.driver		= {
+		.name	= "spaceball",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= spaceball_serio_ids,
+	.interrupt	= spaceball_interrupt,
+	.connect	= spaceball_connect,
+	.disconnect	= spaceball_disconnect,
+};
+
+module_serio_driver(spaceball_drv);
diff --git a/drivers/input/joystick/spaceorb.c b/drivers/input/joystick/spaceorb.c
new file mode 100644
index 000000000..dbbc69f17
--- /dev/null
+++ b/drivers/input/joystick/spaceorb.c
@@ -0,0 +1,220 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *	David Thompson
+ */
+
+/*
+ * SpaceTec SpaceOrb 360 and Avenger 6dof controller driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC	"SpaceTec SpaceOrb 360 and Avenger 6dof controller driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define SPACEORB_MAX_LENGTH	64
+
+static int spaceorb_buttons[] = { BTN_TL, BTN_TR, BTN_Y, BTN_X, BTN_B, BTN_A };
+static int spaceorb_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
+
+/*
+ * Per-Orb data.
+ */
+
+struct spaceorb {
+	struct input_dev *dev;
+	int idx;
+	unsigned char data[SPACEORB_MAX_LENGTH];
+	char phys[32];
+};
+
+static unsigned char spaceorb_xor[] = "SpaceWare";
+
+static unsigned char *spaceorb_errors[] = { "EEPROM storing 0 failed", "Receive queue overflow", "Transmit queue timeout",
+		"Bad packet", "Power brown-out", "EEPROM checksum error", "Hardware fault" };
+
+/*
+ * spaceorb_process_packet() decodes packets the driver receives from the
+ * SpaceOrb.
+ */
+
+static void spaceorb_process_packet(struct spaceorb *spaceorb)
+{
+	struct input_dev *dev = spaceorb->dev;
+	unsigned char *data = spaceorb->data;
+	unsigned char c = 0;
+	int axes[6];
+	int i;
+
+	if (spaceorb->idx < 2) return;
+	for (i = 0; i < spaceorb->idx; i++) c ^= data[i];
+	if (c) return;
+
+	switch (data[0]) {
+
+		case 'R':				/* Reset packet */
+			spaceorb->data[spaceorb->idx - 1] = 0;
+			for (i = 1; i < spaceorb->idx && spaceorb->data[i] == ' '; i++);
+			printk(KERN_INFO "input: %s [%s] is %s\n",
+				 dev->name, spaceorb->data + i, spaceorb->phys);
+			break;
+
+		case 'D':				/* Ball + button data */
+			if (spaceorb->idx != 12) return;
+			for (i = 0; i < 9; i++) spaceorb->data[i+2] ^= spaceorb_xor[i];
+			axes[0] = ( data[2]	 << 3) | (data[ 3] >> 4);
+			axes[1] = ((data[3] & 0x0f) << 6) | (data[ 4] >> 1);
+			axes[2] = ((data[4] & 0x01) << 9) | (data[ 5] << 2) | (data[4] >> 5);
+			axes[3] = ((data[6] & 0x1f) << 5) | (data[ 7] >> 2);
+			axes[4] = ((data[7] & 0x03) << 8) | (data[ 8] << 1) | (data[7] >> 6);
+			axes[5] = ((data[9] & 0x3f) << 4) | (data[10] >> 3);
+			for (i = 0; i < 6; i++)
+				input_report_abs(dev, spaceorb_axes[i], axes[i] - ((axes[i] & 0x200) ? 1024 : 0));
+			for (i = 0; i < 6; i++)
+				input_report_key(dev, spaceorb_buttons[i], (data[1] >> i) & 1);
+			break;
+
+		case 'K':				/* Button data */
+			if (spaceorb->idx != 5) return;
+			for (i = 0; i < 6; i++)
+				input_report_key(dev, spaceorb_buttons[i], (data[2] >> i) & 1);
+
+			break;
+
+		case 'E':				/* Error packet */
+			if (spaceorb->idx != 4) return;
+			printk(KERN_ERR "spaceorb: Device error. [ ");
+			for (i = 0; i < 7; i++) if (data[1] & (1 << i)) printk("%s ", spaceorb_errors[i]);
+			printk("]\n");
+			break;
+	}
+
+	input_sync(dev);
+}
+
+static irqreturn_t spaceorb_interrupt(struct serio *serio,
+		unsigned char data, unsigned int flags)
+{
+	struct spaceorb* spaceorb = serio_get_drvdata(serio);
+
+	if (~data & 0x80) {
+		if (spaceorb->idx) spaceorb_process_packet(spaceorb);
+		spaceorb->idx = 0;
+	}
+	if (spaceorb->idx < SPACEORB_MAX_LENGTH)
+		spaceorb->data[spaceorb->idx++] = data & 0x7f;
+	return IRQ_HANDLED;
+}
+
+/*
+ * spaceorb_disconnect() is the opposite of spaceorb_connect()
+ */
+
+static void spaceorb_disconnect(struct serio *serio)
+{
+	struct spaceorb* spaceorb = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(spaceorb->dev);
+	kfree(spaceorb);
+}
+
+/*
+ * spaceorb_connect() is the routine that is called when someone adds a
+ * new serio device that supports SpaceOrb/Avenger protocol and registers
+ * it as an input device.
+ */
+
+static int spaceorb_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct spaceorb *spaceorb;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+	int i;
+
+	spaceorb = kzalloc(sizeof(struct spaceorb), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!spaceorb || !input_dev)
+		goto fail1;
+
+	spaceorb->dev = input_dev;
+	snprintf(spaceorb->phys, sizeof(spaceorb->phys), "%s/input0", serio->phys);
+
+	input_dev->name = "SpaceTec SpaceOrb 360 / Avenger";
+	input_dev->phys = spaceorb->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_SPACEORB;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	for (i = 0; i < 6; i++)
+		set_bit(spaceorb_buttons[i], input_dev->keybit);
+
+	for (i = 0; i < 6; i++)
+		input_set_abs_params(input_dev, spaceorb_axes[i], -508, 508, 0, 0);
+
+	serio_set_drvdata(serio, spaceorb);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(spaceorb->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(spaceorb);
+	return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id spaceorb_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_SPACEORB,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, spaceorb_serio_ids);
+
+static struct serio_driver spaceorb_drv = {
+	.driver		= {
+		.name	= "spaceorb",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= spaceorb_serio_ids,
+	.interrupt	= spaceorb_interrupt,
+	.connect	= spaceorb_connect,
+	.disconnect	= spaceorb_disconnect,
+};
+
+module_serio_driver(spaceorb_drv);
diff --git a/drivers/input/joystick/stinger.c b/drivers/input/joystick/stinger.c
new file mode 100644
index 000000000..530de468c
--- /dev/null
+++ b/drivers/input/joystick/stinger.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ *  Copyright (c) 2000 Mark Fletcher
+ */
+
+/*
+ * Gravis Stinger gamepad driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC	"Gravis Stinger gamepad driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define STINGER_MAX_LENGTH 8
+
+/*
+ * Per-Stinger data.
+ */
+
+struct stinger {
+	struct input_dev *dev;
+	int idx;
+	unsigned char data[STINGER_MAX_LENGTH];
+	char phys[32];
+};
+
+/*
+ * stinger_process_packet() decodes packets the driver receives from the
+ * Stinger. It updates the data accordingly.
+ */
+
+static void stinger_process_packet(struct stinger *stinger)
+{
+	struct input_dev *dev = stinger->dev;
+	unsigned char *data = stinger->data;
+
+	if (!stinger->idx) return;
+
+	input_report_key(dev, BTN_A,	  ((data[0] & 0x20) >> 5));
+	input_report_key(dev, BTN_B,	  ((data[0] & 0x10) >> 4));
+	input_report_key(dev, BTN_C,	  ((data[0] & 0x08) >> 3));
+	input_report_key(dev, BTN_X,	  ((data[0] & 0x04) >> 2));
+	input_report_key(dev, BTN_Y,	  ((data[3] & 0x20) >> 5));
+	input_report_key(dev, BTN_Z,	  ((data[3] & 0x10) >> 4));
+	input_report_key(dev, BTN_TL,     ((data[3] & 0x08) >> 3));
+	input_report_key(dev, BTN_TR,     ((data[3] & 0x04) >> 2));
+	input_report_key(dev, BTN_SELECT, ((data[3] & 0x02) >> 1));
+	input_report_key(dev, BTN_START,   (data[3] & 0x01));
+
+	input_report_abs(dev, ABS_X, (data[1] & 0x3F) - ((data[0] & 0x01) << 6));
+	input_report_abs(dev, ABS_Y, ((data[0] & 0x02) << 5) - (data[2] & 0x3F));
+
+	input_sync(dev);
+
+	return;
+}
+
+/*
+ * stinger_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t stinger_interrupt(struct serio *serio,
+	unsigned char data, unsigned int flags)
+{
+	struct stinger *stinger = serio_get_drvdata(serio);
+
+	/* All Stinger packets are 4 bytes */
+
+	if (stinger->idx < STINGER_MAX_LENGTH)
+		stinger->data[stinger->idx++] = data;
+
+	if (stinger->idx == 4) {
+		stinger_process_packet(stinger);
+		stinger->idx = 0;
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * stinger_disconnect() is the opposite of stinger_connect()
+ */
+
+static void stinger_disconnect(struct serio *serio)
+{
+	struct stinger *stinger = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(stinger->dev);
+	kfree(stinger);
+}
+
+/*
+ * stinger_connect() is the routine that is called when someone adds a
+ * new serio device that supports Stinger protocol and registers it as
+ * an input device.
+ */
+
+static int stinger_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct stinger *stinger;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+
+	stinger = kmalloc(sizeof(struct stinger), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!stinger || !input_dev)
+		goto fail1;
+
+	stinger->dev = input_dev;
+	snprintf(stinger->phys, sizeof(stinger->phys), "%s/serio0", serio->phys);
+
+	input_dev->name = "Gravis Stinger";
+	input_dev->phys = stinger->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_STINGER;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+	input_dev->keybit[BIT_WORD(BTN_A)] = BIT_MASK(BTN_A) | BIT_MASK(BTN_B) |
+		BIT_MASK(BTN_C) | BIT_MASK(BTN_X) | BIT_MASK(BTN_Y) |
+		BIT_MASK(BTN_Z) | BIT_MASK(BTN_TL) | BIT_MASK(BTN_TR) |
+		BIT_MASK(BTN_START) | BIT_MASK(BTN_SELECT);
+	input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 4);
+	input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 4);
+
+	serio_set_drvdata(serio, stinger);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(stinger->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(stinger);
+	return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id stinger_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_STINGER,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, stinger_serio_ids);
+
+static struct serio_driver stinger_drv = {
+	.driver		= {
+		.name	= "stinger",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= stinger_serio_ids,
+	.interrupt	= stinger_interrupt,
+	.connect	= stinger_connect,
+	.disconnect	= stinger_disconnect,
+};
+
+module_serio_driver(stinger_drv);
diff --git a/drivers/input/joystick/tmdc.c b/drivers/input/joystick/tmdc.c
new file mode 100644
index 000000000..93562ecc0
--- /dev/null
+++ b/drivers/input/joystick/tmdc.c
@@ -0,0 +1,419 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1998-2001 Vojtech Pavlik
+ *
+ *   Based on the work of:
+ *	Trystan Larey-Williams
+ */
+
+/*
+ * ThrustMaster DirectConnect (BSP) joystick family driver for Linux
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC	"ThrustMaster DirectConnect joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define TMDC_MAX_START		600	/* 600 us */
+#define TMDC_MAX_STROBE		60	/* 60 us */
+#define TMDC_MAX_LENGTH		13
+
+#define TMDC_MODE_M3DI		1
+#define TMDC_MODE_3DRP		3
+#define TMDC_MODE_AT		4
+#define TMDC_MODE_FM		8
+#define TMDC_MODE_FGP		163
+
+#define TMDC_BYTE_ID		10
+#define TMDC_BYTE_REV		11
+#define TMDC_BYTE_DEF		12
+
+#define TMDC_ABS		7
+#define TMDC_ABS_HAT		4
+#define TMDC_BTN		16
+
+static const unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
+static const unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };
+
+static const signed char tmdc_abs[TMDC_ABS] =
+	{ ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
+static const signed char tmdc_abs_hat[TMDC_ABS_HAT] =
+	{ ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
+static const signed char tmdc_abs_at[TMDC_ABS] =
+	{ ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE };
+static const signed char tmdc_abs_fm[TMDC_ABS] =
+	{ ABS_RX, ABS_RY, ABS_X, ABS_Y };
+
+static const short tmdc_btn_pad[TMDC_BTN] =
+	{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR };
+static const short tmdc_btn_joy[TMDC_BTN] =
+	{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE,
+	  BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z };
+static const short tmdc_btn_fm[TMDC_BTN] =
+        { BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 };
+static const short tmdc_btn_at[TMDC_BTN] =
+        { BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4,
+          BTN_BASE3, BTN_BASE2, BTN_BASE };
+
+static const struct {
+        int x;
+        int y;
+} tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}};
+
+static const struct tmdc_model {
+	unsigned char id;
+	const char *name;
+	char abs;
+	char hats;
+	char btnc[4];
+	char btno[4];
+	const signed char *axes;
+	const short *buttons;
+} tmdc_models[] = {
+	{   1, "ThrustMaster Millennium 3D Inceptor",	  6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy },
+	{   3, "ThrustMaster Rage 3D Gamepad",		  2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
+	{   4, "ThrustMaster Attack Throttle",		  5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at },
+	{   8, "ThrustMaster FragMaster",		  4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm },
+	{ 163, "Thrustmaster Fusion GamePad",		  2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
+	{   0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy }
+};
+
+
+struct tmdc_port {
+	struct input_dev *dev;
+	char name[64];
+	char phys[32];
+	int mode;
+	const signed char *abs;
+	const short *btn;
+	unsigned char absc;
+	unsigned char btnc[4];
+	unsigned char btno[4];
+};
+
+struct tmdc {
+	struct gameport *gameport;
+	struct tmdc_port *port[2];
+#if 0
+	struct input_dev *dev[2];
+	char name[2][64];
+	char phys[2][32];
+	int mode[2];
+	signed char *abs[2];
+	short *btn[2];
+	unsigned char absc[2];
+	unsigned char btnc[2][4];
+	unsigned char btno[2][4];
+#endif
+	int reads;
+	int bads;
+	unsigned char exists;
+};
+
+/*
+ * tmdc_read_packet() reads a ThrustMaster packet.
+ */
+
+static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH])
+{
+	unsigned char u, v, w, x;
+	unsigned long flags;
+	int i[2], j[2], t[2], p, k;
+
+	p = gameport_time(gameport, TMDC_MAX_STROBE);
+
+	for (k = 0; k < 2; k++) {
+		t[k] = gameport_time(gameport, TMDC_MAX_START);
+		i[k] = j[k] = 0;
+	}
+
+	local_irq_save(flags);
+	gameport_trigger(gameport);
+
+	w = gameport_read(gameport) >> 4;
+
+	do {
+		x = w;
+		w = gameport_read(gameport) >> 4;
+
+		for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) {
+			if (~v & u & 2) {
+				if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue;
+				t[k] = p;
+				if (j[k] == 0) {				 /* Start bit */
+					if (~v & 1) t[k] = 0;
+					data[k][i[k]] = 0; j[k]++; continue;
+				}
+				if (j[k] == 9) {				/* Stop bit */
+					if (v & 1) t[k] = 0;
+					j[k] = 0; i[k]++; continue;
+				}
+				data[k][i[k]] |= (~v & 1) << (j[k]++ - 1);	/* Data bit */
+			}
+			t[k]--;
+		}
+	} while (t[0] > 0 || t[1] > 0);
+
+	local_irq_restore(flags);
+
+	return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1);
+}
+
+static int tmdc_parse_packet(struct tmdc_port *port, unsigned char *data)
+{
+	int i, k, l;
+
+	if (data[TMDC_BYTE_ID] != port->mode)
+		return -1;
+
+	for (i = 0; i < port->absc; i++) {
+		if (port->abs[i] < 0)
+			return 0;
+
+		input_report_abs(port->dev, port->abs[i], data[tmdc_byte_a[i]]);
+	}
+
+	switch (port->mode) {
+
+		case TMDC_MODE_M3DI:
+
+			i = tmdc_byte_d[0];
+			input_report_abs(port->dev, ABS_HAT0X, ((data[i] >> 3) & 1) - ((data[i] >> 1) & 1));
+			input_report_abs(port->dev, ABS_HAT0Y, ((data[i] >> 2) & 1) - ( data[i]       & 1));
+			break;
+
+		case TMDC_MODE_AT:
+
+			i = tmdc_byte_a[3];
+			input_report_abs(port->dev, ABS_HAT0X, tmdc_hat_to_axis[(data[i] - 141) / 25].x);
+			input_report_abs(port->dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[i] - 141) / 25].y);
+			break;
+
+	}
+
+	for (k = l = 0; k < 4; k++) {
+		for (i = 0; i < port->btnc[k]; i++)
+			input_report_key(port->dev, port->btn[i + l],
+				((data[tmdc_byte_d[k]] >> (i + port->btno[k])) & 1));
+		l += port->btnc[k];
+	}
+
+	input_sync(port->dev);
+
+	return 0;
+}
+
+/*
+ * tmdc_poll() reads and analyzes ThrustMaster joystick data.
+ */
+
+static void tmdc_poll(struct gameport *gameport)
+{
+	unsigned char data[2][TMDC_MAX_LENGTH];
+	struct tmdc *tmdc = gameport_get_drvdata(gameport);
+	unsigned char r, bad = 0;
+	int i;
+
+	tmdc->reads++;
+
+	if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
+		bad = 1;
+	else {
+		for (i = 0; i < 2; i++) {
+			if (r & (1 << i) & tmdc->exists) {
+
+				if (tmdc_parse_packet(tmdc->port[i], data[i]))
+					bad = 1;
+			}
+		}
+	}
+
+	tmdc->bads += bad;
+}
+
+static int tmdc_open(struct input_dev *dev)
+{
+	struct tmdc *tmdc = input_get_drvdata(dev);
+
+	gameport_start_polling(tmdc->gameport);
+	return 0;
+}
+
+static void tmdc_close(struct input_dev *dev)
+{
+	struct tmdc *tmdc = input_get_drvdata(dev);
+
+	gameport_stop_polling(tmdc->gameport);
+}
+
+static int tmdc_setup_port(struct tmdc *tmdc, int idx, unsigned char *data)
+{
+	const struct tmdc_model *model;
+	struct tmdc_port *port;
+	struct input_dev *input_dev;
+	int i, j, b = 0;
+	int err;
+
+	tmdc->port[idx] = port = kzalloc(sizeof (struct tmdc_port), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!port || !input_dev) {
+		err = -ENOMEM;
+		goto fail;
+	}
+
+	port->mode = data[TMDC_BYTE_ID];
+
+	for (model = tmdc_models; model->id && model->id != port->mode; model++)
+		/* empty */;
+
+	port->abs = model->axes;
+	port->btn = model->buttons;
+
+	if (!model->id) {
+		port->absc = data[TMDC_BYTE_DEF] >> 4;
+		for (i = 0; i < 4; i++)
+			port->btnc[i] = i < (data[TMDC_BYTE_DEF] & 0xf) ? 8 : 0;
+	} else {
+		port->absc = model->abs;
+		for (i = 0; i < 4; i++)
+			port->btnc[i] = model->btnc[i];
+	}
+
+	for (i = 0; i < 4; i++)
+		port->btno[i] = model->btno[i];
+
+	snprintf(port->name, sizeof(port->name), model->name,
+		 port->absc, (data[TMDC_BYTE_DEF] & 0xf) << 3, port->mode);
+	snprintf(port->phys, sizeof(port->phys), "%s/input%d", tmdc->gameport->phys, i);
+
+	port->dev = input_dev;
+
+	input_dev->name = port->name;
+	input_dev->phys = port->phys;
+	input_dev->id.bustype = BUS_GAMEPORT;
+	input_dev->id.vendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
+	input_dev->id.product = model->id;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &tmdc->gameport->dev;
+
+	input_set_drvdata(input_dev, tmdc);
+
+	input_dev->open = tmdc_open;
+	input_dev->close = tmdc_close;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+	for (i = 0; i < port->absc && i < TMDC_ABS; i++)
+		if (port->abs[i] >= 0)
+			input_set_abs_params(input_dev, port->abs[i], 8, 248, 2, 4);
+
+	for (i = 0; i < model->hats && i < TMDC_ABS_HAT; i++)
+		input_set_abs_params(input_dev, tmdc_abs_hat[i], -1, 1, 0, 0);
+
+	for (i = 0; i < 4; i++) {
+		for (j = 0; j < port->btnc[i] && j < TMDC_BTN; j++)
+			set_bit(port->btn[j + b], input_dev->keybit);
+		b += port->btnc[i];
+	}
+
+	err = input_register_device(port->dev);
+	if (err)
+		goto fail;
+
+	return 0;
+
+ fail:	input_free_device(input_dev);
+	kfree(port);
+	return err;
+}
+
+/*
+ * tmdc_probe() probes for ThrustMaster type joysticks.
+ */
+
+static int tmdc_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+	unsigned char data[2][TMDC_MAX_LENGTH];
+	struct tmdc *tmdc;
+	int i;
+	int err;
+
+	if (!(tmdc = kzalloc(sizeof(struct tmdc), GFP_KERNEL)))
+		return -ENOMEM;
+
+	tmdc->gameport = gameport;
+
+	gameport_set_drvdata(gameport, tmdc);
+
+	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+	if (err)
+		goto fail1;
+
+	if (!(tmdc->exists = tmdc_read_packet(gameport, data))) {
+		err = -ENODEV;
+		goto fail2;
+	}
+
+	gameport_set_poll_handler(gameport, tmdc_poll);
+	gameport_set_poll_interval(gameport, 20);
+
+	for (i = 0; i < 2; i++) {
+		if (tmdc->exists & (1 << i)) {
+
+			err = tmdc_setup_port(tmdc, i, data[i]);
+			if (err)
+				goto fail3;
+		}
+	}
+
+	return 0;
+
+ fail3: while (--i >= 0) {
+		if (tmdc->port[i]) {
+			input_unregister_device(tmdc->port[i]->dev);
+			kfree(tmdc->port[i]);
+		}
+	}
+ fail2:	gameport_close(gameport);
+ fail1:	gameport_set_drvdata(gameport, NULL);
+	kfree(tmdc);
+	return err;
+}
+
+static void tmdc_disconnect(struct gameport *gameport)
+{
+	struct tmdc *tmdc = gameport_get_drvdata(gameport);
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		if (tmdc->port[i]) {
+			input_unregister_device(tmdc->port[i]->dev);
+			kfree(tmdc->port[i]);
+		}
+	}
+	gameport_close(gameport);
+	gameport_set_drvdata(gameport, NULL);
+	kfree(tmdc);
+}
+
+static struct gameport_driver tmdc_drv = {
+	.driver		= {
+		.name	= "tmdc",
+		.owner	= THIS_MODULE,
+	},
+	.description	= DRIVER_DESC,
+	.connect	= tmdc_connect,
+	.disconnect	= tmdc_disconnect,
+};
+
+module_gameport_driver(tmdc_drv);
diff --git a/drivers/input/joystick/turbografx.c b/drivers/input/joystick/turbografx.c
new file mode 100644
index 000000000..dfb9c6846
--- /dev/null
+++ b/drivers/input/joystick/turbografx.c
@@ -0,0 +1,309 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1998-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *	Steffen Schwenke
+ */
+
+/*
+ * TurboGraFX parallel port interface driver for Linux.
+ */
+
+#include <linux/kernel.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("TurboGraFX parallel port interface driver");
+MODULE_LICENSE("GPL");
+
+#define TGFX_MAX_PORTS		3
+#define TGFX_MAX_DEVICES	7
+
+struct tgfx_config {
+	int args[TGFX_MAX_DEVICES + 1];
+	unsigned int nargs;
+};
+
+static struct tgfx_config tgfx_cfg[TGFX_MAX_PORTS];
+
+module_param_array_named(map, tgfx_cfg[0].args, int, &tgfx_cfg[0].nargs, 0);
+MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<js1>,<js2>,..<js7>");
+module_param_array_named(map2, tgfx_cfg[1].args, int, &tgfx_cfg[1].nargs, 0);
+MODULE_PARM_DESC(map2, "Describes second set of devices");
+module_param_array_named(map3, tgfx_cfg[2].args, int, &tgfx_cfg[2].nargs, 0);
+MODULE_PARM_DESC(map3, "Describes third set of devices");
+
+#define TGFX_REFRESH_TIME	HZ/100	/* 10 ms */
+
+#define TGFX_TRIGGER		0x08
+#define TGFX_UP			0x10
+#define TGFX_DOWN		0x20
+#define TGFX_LEFT		0x40
+#define TGFX_RIGHT		0x80
+
+#define TGFX_THUMB		0x02
+#define TGFX_THUMB2		0x04
+#define TGFX_TOP		0x01
+#define TGFX_TOP2		0x08
+
+static int tgfx_buttons[] = { BTN_TRIGGER, BTN_THUMB, BTN_THUMB2, BTN_TOP, BTN_TOP2 };
+
+static struct tgfx {
+	struct pardevice *pd;
+	struct timer_list timer;
+	struct input_dev *dev[TGFX_MAX_DEVICES];
+	char name[TGFX_MAX_DEVICES][64];
+	char phys[TGFX_MAX_DEVICES][32];
+	int sticks;
+	int used;
+	int parportno;
+	struct mutex sem;
+} *tgfx_base[TGFX_MAX_PORTS];
+
+/*
+ * tgfx_timer() reads and analyzes TurboGraFX joystick data.
+ */
+
+static void tgfx_timer(struct timer_list *t)
+{
+	struct tgfx *tgfx = from_timer(tgfx, t, timer);
+	struct input_dev *dev;
+	int data1, data2, i;
+
+	for (i = 0; i < 7; i++)
+		if (tgfx->sticks & (1 << i)) {
+
+			dev = tgfx->dev[i];
+
+			parport_write_data(tgfx->pd->port, ~(1 << i));
+			data1 = parport_read_status(tgfx->pd->port) ^ 0x7f;
+			data2 = parport_read_control(tgfx->pd->port) ^ 0x04;	/* CAVEAT parport */
+
+			input_report_abs(dev, ABS_X, !!(data1 & TGFX_RIGHT) - !!(data1 & TGFX_LEFT));
+			input_report_abs(dev, ABS_Y, !!(data1 & TGFX_DOWN ) - !!(data1 & TGFX_UP  ));
+
+			input_report_key(dev, BTN_TRIGGER, (data1 & TGFX_TRIGGER));
+			input_report_key(dev, BTN_THUMB,   (data2 & TGFX_THUMB  ));
+			input_report_key(dev, BTN_THUMB2,  (data2 & TGFX_THUMB2 ));
+			input_report_key(dev, BTN_TOP,     (data2 & TGFX_TOP    ));
+			input_report_key(dev, BTN_TOP2,    (data2 & TGFX_TOP2   ));
+
+			input_sync(dev);
+		}
+
+	mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);
+}
+
+static int tgfx_open(struct input_dev *dev)
+{
+	struct tgfx *tgfx = input_get_drvdata(dev);
+	int err;
+
+	err = mutex_lock_interruptible(&tgfx->sem);
+	if (err)
+		return err;
+
+	if (!tgfx->used++) {
+		parport_claim(tgfx->pd);
+		parport_write_control(tgfx->pd->port, 0x04);
+		mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);
+	}
+
+	mutex_unlock(&tgfx->sem);
+	return 0;
+}
+
+static void tgfx_close(struct input_dev *dev)
+{
+	struct tgfx *tgfx = input_get_drvdata(dev);
+
+	mutex_lock(&tgfx->sem);
+	if (!--tgfx->used) {
+		del_timer_sync(&tgfx->timer);
+		parport_write_control(tgfx->pd->port, 0x00);
+		parport_release(tgfx->pd);
+	}
+	mutex_unlock(&tgfx->sem);
+}
+
+
+
+/*
+ * tgfx_probe() probes for tg gamepads.
+ */
+
+static void tgfx_attach(struct parport *pp)
+{
+	struct tgfx *tgfx;
+	struct input_dev *input_dev;
+	struct pardevice *pd;
+	int i, j, port_idx;
+	int *n_buttons, n_devs;
+	struct pardev_cb tgfx_parport_cb;
+
+	for (port_idx = 0; port_idx < TGFX_MAX_PORTS; port_idx++) {
+		if (tgfx_cfg[port_idx].nargs == 0 ||
+		    tgfx_cfg[port_idx].args[0] < 0)
+			continue;
+		if (tgfx_cfg[port_idx].args[0] == pp->number)
+			break;
+	}
+
+	if (port_idx == TGFX_MAX_PORTS) {
+		pr_debug("Not using parport%d.\n", pp->number);
+		return;
+	}
+	n_buttons = tgfx_cfg[port_idx].args + 1;
+	n_devs = tgfx_cfg[port_idx].nargs - 1;
+
+	memset(&tgfx_parport_cb, 0, sizeof(tgfx_parport_cb));
+	tgfx_parport_cb.flags = PARPORT_FLAG_EXCL;
+
+	pd = parport_register_dev_model(pp, "turbografx", &tgfx_parport_cb,
+					port_idx);
+	if (!pd) {
+		pr_err("parport busy already - lp.o loaded?\n");
+		return;
+	}
+
+	tgfx = kzalloc(sizeof(struct tgfx), GFP_KERNEL);
+	if (!tgfx) {
+		printk(KERN_ERR "turbografx.c: Not enough memory\n");
+		goto err_unreg_pardev;
+	}
+
+	mutex_init(&tgfx->sem);
+	tgfx->pd = pd;
+	tgfx->parportno = pp->number;
+	timer_setup(&tgfx->timer, tgfx_timer, 0);
+
+	for (i = 0; i < n_devs; i++) {
+		if (n_buttons[i] < 1)
+			continue;
+
+		if (n_buttons[i] > ARRAY_SIZE(tgfx_buttons)) {
+			printk(KERN_ERR "turbografx.c: Invalid number of buttons %d\n", n_buttons[i]);
+			goto err_unreg_devs;
+		}
+
+		tgfx->dev[i] = input_dev = input_allocate_device();
+		if (!input_dev) {
+			printk(KERN_ERR "turbografx.c: Not enough memory for input device\n");
+			goto err_unreg_devs;
+		}
+
+		tgfx->sticks |= (1 << i);
+		snprintf(tgfx->name[i], sizeof(tgfx->name[i]),
+			 "TurboGraFX %d-button Multisystem joystick", n_buttons[i]);
+		snprintf(tgfx->phys[i], sizeof(tgfx->phys[i]),
+			 "%s/input%d", tgfx->pd->port->name, i);
+
+		input_dev->name = tgfx->name[i];
+		input_dev->phys = tgfx->phys[i];
+		input_dev->id.bustype = BUS_PARPORT;
+		input_dev->id.vendor = 0x0003;
+		input_dev->id.product = n_buttons[i];
+		input_dev->id.version = 0x0100;
+
+		input_set_drvdata(input_dev, tgfx);
+
+		input_dev->open = tgfx_open;
+		input_dev->close = tgfx_close;
+
+		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+		input_set_abs_params(input_dev, ABS_X, -1, 1, 0, 0);
+		input_set_abs_params(input_dev, ABS_Y, -1, 1, 0, 0);
+
+		for (j = 0; j < n_buttons[i]; j++)
+			set_bit(tgfx_buttons[j], input_dev->keybit);
+
+		if (input_register_device(tgfx->dev[i]))
+			goto err_free_dev;
+	}
+
+        if (!tgfx->sticks) {
+		printk(KERN_ERR "turbografx.c: No valid devices specified\n");
+		goto err_free_tgfx;
+        }
+
+	tgfx_base[port_idx] = tgfx;
+	return;
+
+ err_free_dev:
+	input_free_device(tgfx->dev[i]);
+ err_unreg_devs:
+	while (--i >= 0)
+		if (tgfx->dev[i])
+			input_unregister_device(tgfx->dev[i]);
+ err_free_tgfx:
+	kfree(tgfx);
+ err_unreg_pardev:
+	parport_unregister_device(pd);
+}
+
+static void tgfx_detach(struct parport *port)
+{
+	int i;
+	struct tgfx *tgfx;
+
+	for (i = 0; i < TGFX_MAX_PORTS; i++) {
+		if (tgfx_base[i] && tgfx_base[i]->parportno == port->number)
+			break;
+	}
+
+	if (i == TGFX_MAX_PORTS)
+		return;
+
+	tgfx = tgfx_base[i];
+	tgfx_base[i] = NULL;
+
+	for (i = 0; i < TGFX_MAX_DEVICES; i++)
+		if (tgfx->dev[i])
+			input_unregister_device(tgfx->dev[i]);
+	parport_unregister_device(tgfx->pd);
+	kfree(tgfx);
+}
+
+static struct parport_driver tgfx_parport_driver = {
+	.name = "turbografx",
+	.match_port = tgfx_attach,
+	.detach = tgfx_detach,
+	.devmodel = true,
+};
+
+static int __init tgfx_init(void)
+{
+	int i;
+	int have_dev = 0;
+
+	for (i = 0; i < TGFX_MAX_PORTS; i++) {
+		if (tgfx_cfg[i].nargs == 0 || tgfx_cfg[i].args[0] < 0)
+			continue;
+
+		if (tgfx_cfg[i].nargs < 2) {
+			printk(KERN_ERR "turbografx.c: at least one joystick must be specified\n");
+			return -EINVAL;
+		}
+
+		have_dev = 1;
+	}
+
+	if (!have_dev)
+		return -ENODEV;
+
+	return parport_register_driver(&tgfx_parport_driver);
+}
+
+static void __exit tgfx_exit(void)
+{
+	parport_unregister_driver(&tgfx_parport_driver);
+}
+
+module_init(tgfx_init);
+module_exit(tgfx_exit);
diff --git a/drivers/input/joystick/twidjoy.c b/drivers/input/joystick/twidjoy.c
new file mode 100644
index 000000000..9b6792ac2
--- /dev/null
+++ b/drivers/input/joystick/twidjoy.c
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 2001 Arndt Schoenewald
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ *  Copyright (c) 2000 Mark Fletcher
+ *
+ *  Sponsored by Quelltext AG (http://www.quelltext-ag.de), Dortmund, Germany
+ */
+
+/*
+ * Driver to use Handykey's Twiddler (the first edition, i.e. the one with
+ * the RS232 interface) as a joystick under Linux
+ *
+ * The Twiddler is a one-handed chording keyboard featuring twelve buttons on
+ * the front, six buttons on the top, and a built-in tilt sensor. The buttons
+ * on the front, which are grouped as four rows of three buttons, are pressed
+ * by the four fingers (this implies only one button per row can be held down
+ * at the same time) and the buttons on the top are for the thumb. The tilt
+ * sensor delivers X and Y axis data depending on how the Twiddler is held.
+ * Additional information can be found at http://www.handykey.com.
+ *
+ * This driver does not use the Twiddler for its intended purpose, i.e. as
+ * a chording keyboard, but as a joystick: pressing and releasing a button
+ * immediately sends a corresponding button event, and tilting it generates
+ * corresponding ABS_X and ABS_Y events. This turns the Twiddler into a game
+ * controller with amazing 18 buttons :-)
+ *
+ * Note: The Twiddler2 (the successor of the Twiddler that connects directly
+ * to the PS/2 keyboard and mouse ports) is NOT supported by this driver!
+ *
+ * For questions or feedback regarding this driver module please contact:
+ * Arndt Schoenewald <arndt@quelltext.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC	"Handykey Twiddler keyboard as a joystick driver"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define TWIDJOY_MAX_LENGTH 5
+
+static struct twidjoy_button_spec {
+	int bitshift;
+	int bitmask;
+	int buttons[3];
+}
+twidjoy_buttons[] = {
+	{  0, 3, { BTN_A,      BTN_B,     BTN_C    } },
+	{  2, 3, { BTN_X,      BTN_Y,     BTN_Z    } },
+	{  4, 3, { BTN_TL,     BTN_TR,    BTN_TR2  } },
+	{  6, 3, { BTN_SELECT, BTN_START, BTN_MODE } },
+	{  8, 1, { BTN_BASE5                       } },
+	{  9, 1, { BTN_BASE                        } },
+	{ 10, 1, { BTN_BASE3                       } },
+	{ 11, 1, { BTN_BASE4                       } },
+	{ 12, 1, { BTN_BASE2                       } },
+	{ 13, 1, { BTN_BASE6                       } },
+	{ 0,  0, { 0                               } }
+};
+
+/*
+ * Per-Twiddler data.
+ */
+
+struct twidjoy {
+	struct input_dev *dev;
+	int idx;
+	unsigned char data[TWIDJOY_MAX_LENGTH];
+	char phys[32];
+};
+
+/*
+ * twidjoy_process_packet() decodes packets the driver receives from the
+ * Twiddler. It updates the data accordingly.
+ */
+
+static void twidjoy_process_packet(struct twidjoy *twidjoy)
+{
+	struct input_dev *dev = twidjoy->dev;
+	unsigned char *data = twidjoy->data;
+	struct twidjoy_button_spec *bp;
+	int button_bits, abs_x, abs_y;
+
+	button_bits = ((data[1] & 0x7f) << 7) | (data[0] & 0x7f);
+
+	for (bp = twidjoy_buttons; bp->bitmask; bp++) {
+		int value = (button_bits & (bp->bitmask << bp->bitshift)) >> bp->bitshift;
+		int i;
+
+		for (i = 0; i < bp->bitmask; i++)
+			input_report_key(dev, bp->buttons[i], i+1 == value);
+	}
+
+	abs_x = ((data[4] & 0x07) << 5) | ((data[3] & 0x7C) >> 2);
+	if (data[4] & 0x08) abs_x -= 256;
+
+	abs_y = ((data[3] & 0x01) << 7) | ((data[2] & 0x7F) >> 0);
+	if (data[3] & 0x02) abs_y -= 256;
+
+	input_report_abs(dev, ABS_X, -abs_x);
+	input_report_abs(dev, ABS_Y, +abs_y);
+
+	input_sync(dev);
+}
+
+/*
+ * twidjoy_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t twidjoy_interrupt(struct serio *serio, unsigned char data, unsigned int flags)
+{
+	struct twidjoy *twidjoy = serio_get_drvdata(serio);
+
+	/* All Twiddler packets are 5 bytes. The fact that the first byte
+	 * has a MSB of 0 and all other bytes have a MSB of 1 can be used
+	 * to check and regain sync. */
+
+	if ((data & 0x80) == 0)
+		twidjoy->idx = 0;	/* this byte starts a new packet */
+	else if (twidjoy->idx == 0)
+		return IRQ_HANDLED;	/* wrong MSB -- ignore this byte */
+
+	if (twidjoy->idx < TWIDJOY_MAX_LENGTH)
+		twidjoy->data[twidjoy->idx++] = data;
+
+	if (twidjoy->idx == TWIDJOY_MAX_LENGTH) {
+		twidjoy_process_packet(twidjoy);
+		twidjoy->idx = 0;
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * twidjoy_disconnect() is the opposite of twidjoy_connect()
+ */
+
+static void twidjoy_disconnect(struct serio *serio)
+{
+	struct twidjoy *twidjoy = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(twidjoy->dev);
+	kfree(twidjoy);
+}
+
+/*
+ * twidjoy_connect() is the routine that is called when someone adds a
+ * new serio device. It looks for the Twiddler, and if found, registers
+ * it as an input device.
+ */
+
+static int twidjoy_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct twidjoy_button_spec *bp;
+	struct twidjoy *twidjoy;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+	int i;
+
+	twidjoy = kzalloc(sizeof(struct twidjoy), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!twidjoy || !input_dev)
+		goto fail1;
+
+	twidjoy->dev = input_dev;
+	snprintf(twidjoy->phys, sizeof(twidjoy->phys), "%s/input0", serio->phys);
+
+	input_dev->name = "Handykey Twiddler";
+	input_dev->phys = twidjoy->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_TWIDJOY;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+	input_set_abs_params(input_dev, ABS_X, -50, 50, 4, 4);
+	input_set_abs_params(input_dev, ABS_Y, -50, 50, 4, 4);
+
+	for (bp = twidjoy_buttons; bp->bitmask; bp++)
+		for (i = 0; i < bp->bitmask; i++)
+			set_bit(bp->buttons[i], input_dev->keybit);
+
+	serio_set_drvdata(serio, twidjoy);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(twidjoy->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(twidjoy);
+	return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id twidjoy_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_TWIDJOY,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, twidjoy_serio_ids);
+
+static struct serio_driver twidjoy_drv = {
+	.driver		= {
+		.name	= "twidjoy",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= twidjoy_serio_ids,
+	.interrupt	= twidjoy_interrupt,
+	.connect	= twidjoy_connect,
+	.disconnect	= twidjoy_disconnect,
+};
+
+module_serio_driver(twidjoy_drv);
diff --git a/drivers/input/joystick/walkera0701.c b/drivers/input/joystick/walkera0701.c
new file mode 100644
index 000000000..56abc8c6c
--- /dev/null
+++ b/drivers/input/joystick/walkera0701.c
@@ -0,0 +1,310 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Parallel port to Walkera WK-0701 TX joystick
+ *
+ *  Copyright (c) 2008 Peter Popovec
+ *
+ *  More about driver:  <file:Documentation/input/devices/walkera0701.rst>
+ */
+
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define RESERVE 20000
+#define SYNC_PULSE 1306000
+#define BIN0_PULSE 288000
+#define BIN1_PULSE 438000
+
+#define ANALOG_MIN_PULSE 318000
+#define ANALOG_MAX_PULSE 878000
+#define ANALOG_DELTA 80000
+
+#define BIN_SAMPLE ((BIN0_PULSE + BIN1_PULSE) / 2)
+
+#define NO_SYNC 25
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+#include <linux/hrtimer.h>
+
+MODULE_AUTHOR("Peter Popovec <popovec@fei.tuke.sk>");
+MODULE_DESCRIPTION("Walkera WK-0701 TX as joystick");
+MODULE_LICENSE("GPL");
+
+static unsigned int walkera0701_pp_no;
+module_param_named(port, walkera0701_pp_no, int, 0);
+MODULE_PARM_DESC(port,
+		 "Parallel port adapter for Walkera WK-0701 TX (default is 0)");
+
+/*
+ * For now, only one device is supported, if somebody need more devices, code
+ * can be expanded, one struct walkera_dev per device must be allocated and
+ * set up by walkera0701_connect (release of device by walkera0701_disconnect)
+ */
+
+struct walkera_dev {
+	unsigned char buf[25];
+	u64 irq_time, irq_lasttime;
+	int counter;
+	int ack;
+
+	struct input_dev *input_dev;
+	struct hrtimer timer;
+
+	struct parport *parport;
+	struct pardevice *pardevice;
+};
+
+static struct walkera_dev w_dev;
+
+static inline void walkera0701_parse_frame(struct walkera_dev *w)
+{
+	int i;
+	int val1, val2, val3, val4, val5, val6, val7, val8;
+	int magic, magic_bit;
+	int crc1, crc2;
+
+	for (crc1 = crc2 = i = 0; i < 10; i++) {
+		crc1 += w->buf[i] & 7;
+		crc2 += (w->buf[i] & 8) >> 3;
+	}
+	if ((w->buf[10] & 7) != (crc1 & 7))
+		return;
+	if (((w->buf[10] & 8) >> 3) != (((crc1 >> 3) + crc2) & 1))
+		return;
+	for (crc1 = crc2 = 0, i = 11; i < 23; i++) {
+		crc1 += w->buf[i] & 7;
+		crc2 += (w->buf[i] & 8) >> 3;
+	}
+	if ((w->buf[23] & 7) != (crc1 & 7))
+		return;
+	if (((w->buf[23] & 8) >> 3) != (((crc1 >> 3) + crc2) & 1))
+		return;
+	val1 = ((w->buf[0] & 7) * 256 + w->buf[1] * 16 + w->buf[2]) >> 2;
+	val1 *= ((w->buf[0] >> 2) & 2) - 1;	/* sign */
+	val2 = (w->buf[2] & 1) << 8 | (w->buf[3] << 4) | w->buf[4];
+	val2 *= (w->buf[2] & 2) - 1;	/* sign */
+	val3 = ((w->buf[5] & 7) * 256 + w->buf[6] * 16 + w->buf[7]) >> 2;
+	val3 *= ((w->buf[5] >> 2) & 2) - 1;	/* sign */
+	val4 = (w->buf[7] & 1) << 8 | (w->buf[8] << 4) | w->buf[9];
+	val4 *= (w->buf[7] & 2) - 1;	/* sign */
+	val5 = ((w->buf[11] & 7) * 256 + w->buf[12] * 16 + w->buf[13]) >> 2;
+	val5 *= ((w->buf[11] >> 2) & 2) - 1;	/* sign */
+	val6 = (w->buf[13] & 1) << 8 | (w->buf[14] << 4) | w->buf[15];
+	val6 *= (w->buf[13] & 2) - 1;	/* sign */
+	val7 = ((w->buf[16] & 7) * 256 + w->buf[17] * 16 + w->buf[18]) >> 2;
+	val7 *= ((w->buf[16] >> 2) & 2) - 1;	/*sign */
+	val8 = (w->buf[18] & 1) << 8 | (w->buf[19] << 4) | w->buf[20];
+	val8 *= (w->buf[18] & 2) - 1;	/*sign */
+
+	magic = (w->buf[21] << 4) | w->buf[22];
+	magic_bit = (w->buf[24] & 8) >> 3;
+	pr_debug("%4d %4d %4d %4d  %4d %4d %4d %4d (magic %2x %d)\n",
+		 val1, val2, val3, val4, val5, val6, val7, val8,
+		 magic, magic_bit);
+
+	input_report_abs(w->input_dev, ABS_X, val2);
+	input_report_abs(w->input_dev, ABS_Y, val1);
+	input_report_abs(w->input_dev, ABS_Z, val6);
+	input_report_abs(w->input_dev, ABS_THROTTLE, val3);
+	input_report_abs(w->input_dev, ABS_RUDDER, val4);
+	input_report_abs(w->input_dev, ABS_MISC, val7);
+	input_report_key(w->input_dev, BTN_GEAR_DOWN, val5 > 0);
+}
+
+static inline int read_ack(struct pardevice *p)
+{
+	return parport_read_status(p->port) & 0x40;
+}
+
+/* falling edge, prepare to BIN value calculation */
+static void walkera0701_irq_handler(void *handler_data)
+{
+	u64 pulse_time;
+	struct walkera_dev *w = handler_data;
+
+	w->irq_time = ktime_to_ns(ktime_get());
+	pulse_time = w->irq_time - w->irq_lasttime;
+	w->irq_lasttime = w->irq_time;
+
+	/* cancel timer, if in handler or active do resync */
+	if (unlikely(0 != hrtimer_try_to_cancel(&w->timer))) {
+		w->counter = NO_SYNC;
+		return;
+	}
+
+	if (w->counter < NO_SYNC) {
+		if (w->ack) {
+			pulse_time -= BIN1_PULSE;
+			w->buf[w->counter] = 8;
+		} else {
+			pulse_time -= BIN0_PULSE;
+			w->buf[w->counter] = 0;
+		}
+		if (w->counter == 24) {	/* full frame */
+			walkera0701_parse_frame(w);
+			w->counter = NO_SYNC;
+			if (abs(pulse_time - SYNC_PULSE) < RESERVE)	/* new frame sync */
+				w->counter = 0;
+		} else {
+			if ((pulse_time > (ANALOG_MIN_PULSE - RESERVE)
+			     && (pulse_time < (ANALOG_MAX_PULSE + RESERVE)))) {
+				pulse_time -= (ANALOG_MIN_PULSE - RESERVE);
+				pulse_time = (u32) pulse_time / ANALOG_DELTA;	/* overtiping is safe, pulsetime < s32.. */
+				w->buf[w->counter++] |= (pulse_time & 7);
+			} else
+				w->counter = NO_SYNC;
+		}
+	} else if (abs(pulse_time - SYNC_PULSE - BIN0_PULSE) <
+				RESERVE + BIN1_PULSE - BIN0_PULSE)	/* frame sync .. */
+		w->counter = 0;
+
+	hrtimer_start(&w->timer, BIN_SAMPLE, HRTIMER_MODE_REL);
+}
+
+static enum hrtimer_restart timer_handler(struct hrtimer
+					  *handle)
+{
+	struct walkera_dev *w;
+
+	w = container_of(handle, struct walkera_dev, timer);
+	w->ack = read_ack(w->pardevice);
+
+	return HRTIMER_NORESTART;
+}
+
+static int walkera0701_open(struct input_dev *dev)
+{
+	struct walkera_dev *w = input_get_drvdata(dev);
+
+	if (parport_claim(w->pardevice))
+		return -EBUSY;
+
+	parport_enable_irq(w->parport);
+	return 0;
+}
+
+static void walkera0701_close(struct input_dev *dev)
+{
+	struct walkera_dev *w = input_get_drvdata(dev);
+
+	parport_disable_irq(w->parport);
+	hrtimer_cancel(&w->timer);
+
+	parport_release(w->pardevice);
+}
+
+static void walkera0701_attach(struct parport *pp)
+{
+	struct pardev_cb walkera0701_parport_cb;
+	struct walkera_dev *w = &w_dev;
+
+	if (pp->number != walkera0701_pp_no) {
+		pr_debug("Not using parport%d.\n", pp->number);
+		return;
+	}
+
+	if (pp->irq == -1) {
+		pr_err("parport %d does not have interrupt assigned\n",
+			pp->number);
+		return;
+	}
+
+	w->parport = pp;
+
+	memset(&walkera0701_parport_cb, 0, sizeof(walkera0701_parport_cb));
+	walkera0701_parport_cb.flags = PARPORT_FLAG_EXCL;
+	walkera0701_parport_cb.irq_func = walkera0701_irq_handler;
+	walkera0701_parport_cb.private = w;
+
+	w->pardevice = parport_register_dev_model(pp, "walkera0701",
+						  &walkera0701_parport_cb, 0);
+
+	if (!w->pardevice) {
+		pr_err("failed to register parport device\n");
+		return;
+	}
+
+	if (parport_negotiate(w->pardevice->port, IEEE1284_MODE_COMPAT)) {
+		pr_err("failed to negotiate parport mode\n");
+		goto err_unregister_device;
+	}
+
+	hrtimer_init(&w->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	w->timer.function = timer_handler;
+
+	w->input_dev = input_allocate_device();
+	if (!w->input_dev) {
+		pr_err("failed to allocate input device\n");
+		goto err_unregister_device;
+	}
+
+	input_set_drvdata(w->input_dev, w);
+	w->input_dev->name = "Walkera WK-0701 TX";
+	w->input_dev->phys = w->parport->name;
+	w->input_dev->id.bustype = BUS_PARPORT;
+
+	/* TODO what id vendor/product/version ? */
+	w->input_dev->id.vendor = 0x0001;
+	w->input_dev->id.product = 0x0001;
+	w->input_dev->id.version = 0x0100;
+	w->input_dev->dev.parent = w->parport->dev;
+	w->input_dev->open = walkera0701_open;
+	w->input_dev->close = walkera0701_close;
+
+	w->input_dev->evbit[0] = BIT(EV_ABS) | BIT_MASK(EV_KEY);
+	w->input_dev->keybit[BIT_WORD(BTN_GEAR_DOWN)] = BIT_MASK(BTN_GEAR_DOWN);
+
+	input_set_abs_params(w->input_dev, ABS_X, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_Y, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_Z, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_THROTTLE, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_RUDDER, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_MISC, -512, 512, 0, 0);
+
+	if (input_register_device(w->input_dev)) {
+		pr_err("failed to register input device\n");
+		goto err_free_input_dev;
+	}
+
+	return;
+
+err_free_input_dev:
+	input_free_device(w->input_dev);
+err_unregister_device:
+	parport_unregister_device(w->pardevice);
+}
+
+static void walkera0701_detach(struct parport *port)
+{
+	struct walkera_dev *w = &w_dev;
+
+	if (!w->pardevice || w->parport->number != port->number)
+		return;
+
+	input_unregister_device(w->input_dev);
+	parport_unregister_device(w->pardevice);
+	w->parport = NULL;
+}
+
+static struct parport_driver walkera0701_parport_driver = {
+	.name = "walkera0701",
+	.match_port = walkera0701_attach,
+	.detach = walkera0701_detach,
+	.devmodel = true,
+};
+
+static int __init walkera0701_init(void)
+{
+	return parport_register_driver(&walkera0701_parport_driver);
+}
+
+static void __exit walkera0701_exit(void)
+{
+	parport_unregister_driver(&walkera0701_parport_driver);
+}
+
+module_init(walkera0701_init);
+module_exit(walkera0701_exit);
diff --git a/drivers/input/joystick/warrior.c b/drivers/input/joystick/warrior.c
new file mode 100644
index 000000000..f66bddf14
--- /dev/null
+++ b/drivers/input/joystick/warrior.c
@@ -0,0 +1,200 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Logitech WingMan Warrior joystick driver for Linux
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC	"Logitech WingMan Warrior joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define WARRIOR_MAX_LENGTH	16
+static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 };
+
+/*
+ * Per-Warrior data.
+ */
+
+struct warrior {
+	struct input_dev *dev;
+	int idx, len;
+	unsigned char data[WARRIOR_MAX_LENGTH];
+	char phys[32];
+};
+
+/*
+ * warrior_process_packet() decodes packets the driver receives from the
+ * Warrior. It updates the data accordingly.
+ */
+
+static void warrior_process_packet(struct warrior *warrior)
+{
+	struct input_dev *dev = warrior->dev;
+	unsigned char *data = warrior->data;
+
+	if (!warrior->idx) return;
+
+	switch ((data[0] >> 4) & 7) {
+		case 1:					/* Button data */
+			input_report_key(dev, BTN_TRIGGER,  data[3]       & 1);
+			input_report_key(dev, BTN_THUMB,   (data[3] >> 1) & 1);
+			input_report_key(dev, BTN_TOP,     (data[3] >> 2) & 1);
+			input_report_key(dev, BTN_TOP2,    (data[3] >> 3) & 1);
+			break;
+		case 3:					/* XY-axis info->data */
+			input_report_abs(dev, ABS_X, ((data[0] & 8) << 5) - (data[2] | ((data[0] & 4) << 5)));
+			input_report_abs(dev, ABS_Y, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
+			break;
+		case 5:					/* Throttle, spinner, hat info->data */
+			input_report_abs(dev, ABS_THROTTLE, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
+			input_report_abs(dev, ABS_HAT0X, (data[3] & 2 ? 1 : 0) - (data[3] & 1 ? 1 : 0));
+			input_report_abs(dev, ABS_HAT0Y, (data[3] & 8 ? 1 : 0) - (data[3] & 4 ? 1 : 0));
+			input_report_rel(dev, REL_DIAL,  (data[2] | ((data[0] & 4) << 5)) - ((data[0] & 8) << 5));
+			break;
+	}
+	input_sync(dev);
+}
+
+/*
+ * warrior_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t warrior_interrupt(struct serio *serio,
+		unsigned char data, unsigned int flags)
+{
+	struct warrior *warrior = serio_get_drvdata(serio);
+
+	if (data & 0x80) {
+		if (warrior->idx) warrior_process_packet(warrior);
+		warrior->idx = 0;
+		warrior->len = warrior_lengths[(data >> 4) & 7];
+	}
+
+	if (warrior->idx < warrior->len)
+		warrior->data[warrior->idx++] = data;
+
+	if (warrior->idx == warrior->len) {
+		if (warrior->idx) warrior_process_packet(warrior);
+		warrior->idx = 0;
+		warrior->len = 0;
+	}
+	return IRQ_HANDLED;
+}
+
+/*
+ * warrior_disconnect() is the opposite of warrior_connect()
+ */
+
+static void warrior_disconnect(struct serio *serio)
+{
+	struct warrior *warrior = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(warrior->dev);
+	kfree(warrior);
+}
+
+/*
+ * warrior_connect() is the routine that is called when someone adds a
+ * new serio device. It looks for the Warrior, and if found, registers
+ * it as an input device.
+ */
+
+static int warrior_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct warrior *warrior;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+
+	warrior = kzalloc(sizeof(struct warrior), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!warrior || !input_dev)
+		goto fail1;
+
+	warrior->dev = input_dev;
+	snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys);
+
+	input_dev->name = "Logitech WingMan Warrior";
+	input_dev->phys = warrior->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_WARRIOR;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) |
+		BIT_MASK(EV_ABS);
+	input_dev->keybit[BIT_WORD(BTN_TRIGGER)] = BIT_MASK(BTN_TRIGGER) |
+		BIT_MASK(BTN_THUMB) | BIT_MASK(BTN_TOP) | BIT_MASK(BTN_TOP2);
+	input_dev->relbit[0] = BIT_MASK(REL_DIAL);
+	input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 8);
+	input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 8);
+	input_set_abs_params(input_dev, ABS_THROTTLE, -112, 112, 0, 0);
+	input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0);
+	input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0);
+
+	serio_set_drvdata(serio, warrior);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(warrior->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(warrior);
+	return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id warrior_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_WARRIOR,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, warrior_serio_ids);
+
+static struct serio_driver warrior_drv = {
+	.driver		= {
+		.name	= "warrior",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= warrior_serio_ids,
+	.interrupt	= warrior_interrupt,
+	.connect	= warrior_connect,
+	.disconnect	= warrior_disconnect,
+};
+
+module_serio_driver(warrior_drv);
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
new file mode 100644
index 000000000..e8011d70d
--- /dev/null
+++ b/drivers/input/joystick/xpad.c
@@ -0,0 +1,2218 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * X-Box gamepad driver
+ *
+ * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
+ *               2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
+ *                    Steven Toth <steve@toth.demon.co.uk>,
+ *                    Franz Lehner <franz@caos.at>,
+ *                    Ivan Hawkes <blackhawk@ivanhawkes.com>
+ *               2005 Dominic Cerquetti <binary1230@yahoo.com>
+ *               2006 Adam Buchbinder <adam.buchbinder@gmail.com>
+ *               2007 Jan Kratochvil <honza@jikos.cz>
+ *               2010 Christoph Fritz <chf.fritz@googlemail.com>
+ *
+ * This driver is based on:
+ *  - information from     http://euc.jp/periphs/xbox-controller.ja.html
+ *  - the iForce driver    drivers/char/joystick/iforce.c
+ *  - the skeleton-driver  drivers/usb/usb-skeleton.c
+ *  - Xbox 360 information http://www.free60.org/wiki/Gamepad
+ *  - Xbox One information https://github.com/quantus/xbox-one-controller-protocol
+ *
+ * Thanks to:
+ *  - ITO Takayuki for providing essential xpad information on his website
+ *  - Vojtech Pavlik     - iforce driver / input subsystem
+ *  - Greg Kroah-Hartman - usb-skeleton driver
+ *  - XBOX Linux project - extra USB id's
+ *  - Pekka Pöyry (quantus) - Xbox One controller reverse engineering
+ *
+ * TODO:
+ *  - fine tune axes (especially trigger axes)
+ *  - fix "analog" buttons (reported as digital now)
+ *  - get rumble working
+ *  - need USB IDs for other dance pads
+ *
+ * History:
+ *
+ * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
+ *
+ * 2002-07-02 - 0.0.2 : basic working version
+ *  - all axes and 9 of the 10 buttons work (german InterAct device)
+ *  - the black button does not work
+ *
+ * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
+ *  - indentation fixes
+ *  - usb + input init sequence fixes
+ *
+ * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
+ *  - verified the lack of HID and report descriptors
+ *  - verified that ALL buttons WORK
+ *  - fixed d-pad to axes mapping
+ *
+ * 2002-07-17 - 0.0.5 : simplified d-pad handling
+ *
+ * 2004-10-02 - 0.0.6 : DDR pad support
+ *  - borrowed from the XBOX linux kernel
+ *  - USB id's for commonly used dance pads are present
+ *  - dance pads will map D-PAD to buttons, not axes
+ *  - pass the module paramater 'dpad_to_buttons' to force
+ *    the D-PAD to map to buttons if your pad is not detected
+ *
+ * Later changes can be tracked in SCM.
+ */
+
+#include <linux/bits.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/rcupdate.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+#include <linux/usb/quirks.h>
+
+#define XPAD_PKT_LEN 64
+
+/*
+ * xbox d-pads should map to buttons, as is required for DDR pads
+ * but we map them to axes when possible to simplify things
+ */
+#define MAP_DPAD_TO_BUTTONS		(1 << 0)
+#define MAP_TRIGGERS_TO_BUTTONS		(1 << 1)
+#define MAP_STICKS_TO_NULL		(1 << 2)
+#define MAP_SELECT_BUTTON		(1 << 3)
+#define MAP_PADDLES			(1 << 4)
+#define MAP_PROFILE_BUTTON		(1 << 5)
+
+#define DANCEPAD_MAP_CONFIG	(MAP_DPAD_TO_BUTTONS |			\
+				MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
+
+#define XTYPE_XBOX        0
+#define XTYPE_XBOX360     1
+#define XTYPE_XBOX360W    2
+#define XTYPE_XBOXONE     3
+#define XTYPE_UNKNOWN     4
+
+/* Send power-off packet to xpad360w after holding the mode button for this many
+ * seconds
+ */
+#define XPAD360W_POWEROFF_TIMEOUT 5
+
+#define PKT_XB              0
+#define PKT_XBE1            1
+#define PKT_XBE2_FW_OLD     2
+#define PKT_XBE2_FW_5_EARLY 3
+#define PKT_XBE2_FW_5_11    4
+
+static bool dpad_to_buttons;
+module_param(dpad_to_buttons, bool, S_IRUGO);
+MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");
+
+static bool triggers_to_buttons;
+module_param(triggers_to_buttons, bool, S_IRUGO);
+MODULE_PARM_DESC(triggers_to_buttons, "Map triggers to buttons rather than axes for unknown pads");
+
+static bool sticks_to_null;
+module_param(sticks_to_null, bool, S_IRUGO);
+MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");
+
+static bool auto_poweroff = true;
+module_param(auto_poweroff, bool, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(auto_poweroff, "Power off wireless controllers on suspend");
+
+static const struct xpad_device {
+	u16 idVendor;
+	u16 idProduct;
+	char *name;
+	u8 mapping;
+	u8 xtype;
+	u8 packet_type;
+} xpad_device[] = {
+	{ 0x0079, 0x18d4, "GPD Win 2 X-Box Controller", 0, XTYPE_XBOX360 },
+	{ 0x03eb, 0xff01, "Wooting One (Legacy)", 0, XTYPE_XBOX360 },
+	{ 0x03eb, 0xff02, "Wooting Two (Legacy)", 0, XTYPE_XBOX360 },
+	{ 0x044f, 0x0f00, "Thrustmaster Wheel", 0, XTYPE_XBOX },
+	{ 0x044f, 0x0f03, "Thrustmaster Wheel", 0, XTYPE_XBOX },
+	{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
+	{ 0x044f, 0x0f10, "Thrustmaster Modena GT Wheel", 0, XTYPE_XBOX },
+	{ 0x044f, 0xb326, "Thrustmaster Gamepad GP XID", 0, XTYPE_XBOX360 },
+	{ 0x03f0, 0x0495, "HyperX Clutch Gladiate", 0, XTYPE_XBOXONE },
+	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", 0, XTYPE_XBOX },
+	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
+	{ 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
+	{ 0x045e, 0x0288, "Microsoft Xbox Controller S v2", 0, XTYPE_XBOX },
+	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
+	{ 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
+	{ 0x045e, 0x028f, "Microsoft X-Box 360 pad v2", 0, XTYPE_XBOX360 },
+	{ 0x045e, 0x0291, "Xbox 360 Wireless Receiver (XBOX)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
+	{ 0x045e, 0x02d1, "Microsoft X-Box One pad", 0, XTYPE_XBOXONE },
+	{ 0x045e, 0x02dd, "Microsoft X-Box One pad (Firmware 2015)", 0, XTYPE_XBOXONE },
+	{ 0x045e, 0x02e3, "Microsoft X-Box One Elite pad", MAP_PADDLES, XTYPE_XBOXONE },
+	{ 0x045e, 0x0b00, "Microsoft X-Box One Elite 2 pad", MAP_PADDLES, XTYPE_XBOXONE },
+	{ 0x045e, 0x02ea, "Microsoft X-Box One S pad", 0, XTYPE_XBOXONE },
+	{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
+	{ 0x045e, 0x0b0a, "Microsoft X-Box Adaptive Controller", MAP_PROFILE_BUTTON, XTYPE_XBOXONE },
+	{ 0x045e, 0x0b12, "Microsoft Xbox Series S|X Controller", MAP_SELECT_BUTTON, XTYPE_XBOXONE },
+	{ 0x046d, 0xc21d, "Logitech Gamepad F310", 0, XTYPE_XBOX360 },
+	{ 0x046d, 0xc21e, "Logitech Gamepad F510", 0, XTYPE_XBOX360 },
+	{ 0x046d, 0xc21f, "Logitech Gamepad F710", 0, XTYPE_XBOX360 },
+	{ 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
+	{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
+	{ 0x046d, 0xca88, "Logitech Compact Controller for Xbox", 0, XTYPE_XBOX },
+	{ 0x046d, 0xca8a, "Logitech Precision Vibration Feedback Wheel", 0, XTYPE_XBOX },
+	{ 0x046d, 0xcaa3, "Logitech DriveFx Racing Wheel", 0, XTYPE_XBOX360 },
+	{ 0x056e, 0x2004, "Elecom JC-U3613M", 0, XTYPE_XBOX360 },
+	{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
+	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
+	{ 0x05fe, 0x3030, "Chic Controller", 0, XTYPE_XBOX },
+	{ 0x05fe, 0x3031, "Chic Controller", 0, XTYPE_XBOX },
+	{ 0x062a, 0x0020, "Logic3 Xbox GamePad", 0, XTYPE_XBOX },
+	{ 0x062a, 0x0033, "Competition Pro Steering Wheel", 0, XTYPE_XBOX },
+	{ 0x06a3, 0x0200, "Saitek Racing Wheel", 0, XTYPE_XBOX },
+	{ 0x06a3, 0x0201, "Saitek Adrenalin", 0, XTYPE_XBOX },
+	{ 0x06a3, 0xf51a, "Saitek P3600", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0x4506, "Mad Catz 4506 Wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4520, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4530, "Mad Catz Universal MC2 Racing Wheel and Pedals", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4536, "Mad Catz MicroCON", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4586, "Mad Catz MicroCon Wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4588, "Mad Catz Blaster", 0, XTYPE_XBOX },
+	{ 0x0738, 0x45ff, "Mad Catz Beat Pad (w/ Handle)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0x4718, "Mad Catz Street Fighter IV FightStick SE", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0x4726, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0x4728, "Mad Catz Street Fighter IV FightPad", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0738, 0x4736, "Mad Catz MicroCon Gamepad", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0738, 0x4740, "Mad Catz Beat Pad", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0x4743, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0738, 0x4758, "Mad Catz Arcade Game Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0738, 0x4a01, "Mad Catz FightStick TE 2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
+	{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0738, 0x9871, "Mad Catz Portable Drum", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0xb726, "Mad Catz Xbox controller - MW2", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0xb738, "Mad Catz MVC2TE Stick 2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0738, 0xbeef, "Mad Catz JOYTECH NEO SE Advanced GamePad", XTYPE_XBOX360 },
+	{ 0x0738, 0xcb02, "Saitek Cyborg Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0xcb03, "Saitek P3200 Rumble Pad - PC/Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0xcb29, "Saitek Aviator Stick AV8R02", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0xf738, "Super SFIV FightStick TE S", 0, XTYPE_XBOX360 },
+	{ 0x07ff, 0xffff, "Mad Catz GamePad", 0, XTYPE_XBOX360 },
+	{ 0x0c12, 0x0005, "Intec wireless", 0, XTYPE_XBOX },
+	{ 0x0c12, 0x8801, "Nyko Xbox Controller", 0, XTYPE_XBOX },
+	{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
+	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
+	{ 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
+	{ 0x0c12, 0x8810, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
+	{ 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", 0, XTYPE_XBOX },
+	{ 0x0d2f, 0x0002, "Andamiro Pump It Up pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0e4c, 0x1097, "Radica Gamester Controller", 0, XTYPE_XBOX },
+	{ 0x0e4c, 0x1103, "Radica Gamester Reflex", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0e4c, 0x2390, "Radica Games Jtech Controller", 0, XTYPE_XBOX },
+	{ 0x0e4c, 0x3510, "Radica Gamester", 0, XTYPE_XBOX },
+	{ 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0e6f, 0x0008, "After Glow Pro Controller", 0, XTYPE_XBOX },
+	{ 0x0e6f, 0x0105, "HSM3 Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0113, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x011f, "Rock Candy Gamepad Wired Controller", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0131, "PDP EA Sports Controller", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0133, "Xbox 360 Wired Controller", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0139, "Afterglow Prismatic Wired Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x013a, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0146, "Rock Candy Wired Controller for Xbox One", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0147, "PDP Marvel Xbox One Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x015c, "PDP Xbox One Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0161, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0162, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0163, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0164, "PDP Battlefield One", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0165, "PDP Titanfall 2", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0201, "Pelican PL-3601 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0213, "Afterglow Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x021f, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0246, "Rock Candy Gamepad for Xbox One 2015", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02a0, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02a1, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02a2, "PDP Wired Controller for Xbox One - Crimson Red", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02a4, "PDP Wired Controller for Xbox One - Stealth Series", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02a6, "PDP Wired Controller for Xbox One - Camo Series", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02a7, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02a8, "PDP Xbox One Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02ab, "PDP Controller for Xbox One", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02ad, "PDP Wired Controller for Xbox One - Stealth Series", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02b3, "Afterglow Prismatic Wired Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x02b8, "Afterglow Prismatic Wired Controller", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0301, "Logic3 Controller", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0346, "Rock Candy Gamepad for Xbox One 2016", 0, XTYPE_XBOXONE },
+	{ 0x0e6f, 0x0401, "Logic3 Controller", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0413, "Afterglow AX.1 Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0501, "PDP Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0xf900, "PDP Afterglow AX.1", 0, XTYPE_XBOX360 },
+	{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
+	{ 0x0e8f, 0x3008, "Generic xbox control (dealextreme)", 0, XTYPE_XBOX },
+	{ 0x0f0d, 0x000a, "Hori Co. DOA4 FightStick", 0, XTYPE_XBOX360 },
+	{ 0x0f0d, 0x000c, "Hori PadEX Turbo", 0, XTYPE_XBOX360 },
+	{ 0x0f0d, 0x000d, "Hori Fighting Stick EX2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0f0d, 0x001b, "Hori Real Arcade Pro VX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0f0d, 0x0063, "Hori Real Arcade Pro Hayabusa (USA) Xbox One", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
+	{ 0x0f0d, 0x0067, "HORIPAD ONE", 0, XTYPE_XBOXONE },
+	{ 0x0f0d, 0x0078, "Hori Real Arcade Pro V Kai Xbox One", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
+	{ 0x0f0d, 0x00c5, "Hori Fighting Commander ONE", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
+	{ 0x0f30, 0x010b, "Philips Recoil", 0, XTYPE_XBOX },
+	{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
+	{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
+	{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
+	{ 0x1038, 0x1430, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 },
+	{ 0x1038, 0x1431, "SteelSeries Stratus Duo", 0, XTYPE_XBOX360 },
+	{ 0x11c9, 0x55f0, "Nacon GC-100XF", 0, XTYPE_XBOX360 },
+	{ 0x11ff, 0x0511, "PXN V900", 0, XTYPE_XBOX360 },
+	{ 0x1209, 0x2882, "Ardwiino Controller", 0, XTYPE_XBOX360 },
+	{ 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x12ab, 0x0301, "PDP AFTERGLOW AX.1", 0, XTYPE_XBOX360 },
+	{ 0x12ab, 0x0303, "Mortal Kombat Klassic FightStick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
+	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x1430, 0xf801, "RedOctane Controller", 0, XTYPE_XBOX360 },
+	{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x146b, 0x0604, "Bigben Interactive DAIJA Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1532, 0x0a00, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOXONE },
+	{ 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
+	{ 0x1532, 0x0a29, "Razer Wolverine V2", 0, XTYPE_XBOXONE },
+	{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
+	{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
+	{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
+	{ 0x162e, 0xbeef, "Joytech Neo-Se Take2", 0, XTYPE_XBOX360 },
+	{ 0x1689, 0xfd00, "Razer Onza Tournament Edition", 0, XTYPE_XBOX360 },
+	{ 0x1689, 0xfd01, "Razer Onza Classic Edition", 0, XTYPE_XBOX360 },
+	{ 0x1689, 0xfe00, "Razer Sabertooth", 0, XTYPE_XBOX360 },
+	{ 0x1949, 0x041a, "Amazon Game Controller", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0x0002, "Harmonix Rock Band Guitar", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0x0130, "Ion Drum Rocker", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf016, "Mad Catz Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf018, "Mad Catz Street Fighter IV SE Fighting Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf019, "Mad Catz Brawlstick for Xbox 360", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf021, "Mad Cats Ghost Recon FS GamePad", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf023, "MLG Pro Circuit Controller (Xbox)", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf025, "Mad Catz Call Of Duty", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf027, "Mad Catz FPS Pro", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf028, "Street Fighter IV FightPad", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf02e, "Mad Catz Fightpad", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf030, "Mad Catz Xbox 360 MC2 MicroCon Racing Wheel", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf036, "Mad Catz MicroCon GamePad Pro", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf038, "Street Fighter IV FightStick TE", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf039, "Mad Catz MvC2 TE", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf03a, "Mad Catz SFxT Fightstick Pro", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf03d, "Street Fighter IV Arcade Stick TE - Chun Li", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf03e, "Mad Catz MLG FightStick TE", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf03f, "Mad Catz FightStick SoulCaliber", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf042, "Mad Catz FightStick TES+", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf080, "Mad Catz FightStick TE2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf501, "HoriPad EX2 Turbo", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf502, "Hori Real Arcade Pro.VX SA", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf503, "Hori Fighting Stick VX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf504, "Hori Real Arcade Pro. EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf505, "Hori Fighting Stick EX2B", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf506, "Hori Real Arcade Pro.EX Premium VLX", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf900, "Harmonix Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf901, "Gamestop Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf903, "Tron Xbox 360 controller", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf904, "PDP Versus Fighting Pad", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xf906, "MortalKombat FightStick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x1bad, 0xfa01, "MadCatz GamePad", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xfd00, "Razer Onza TE", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0xfd01, "Razer Onza", 0, XTYPE_XBOX360 },
+	{ 0x20d6, 0x2001, "BDA Xbox Series X Wired Controller", 0, XTYPE_XBOXONE },
+	{ 0x20d6, 0x2009, "PowerA Enhanced Wired Controller for Xbox Series X|S", 0, XTYPE_XBOXONE },
+	{ 0x20d6, 0x281f, "PowerA Wired Controller For Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x2e24, 0x0652, "Hyperkin Duke X-Box One pad", 0, XTYPE_XBOXONE },
+	{ 0x24c6, 0x5000, "Razer Atrox Arcade Stick", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5300, "PowerA MINI PROEX Controller", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5303, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x530a, "Xbox 360 Pro EX Controller", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x531a, "PowerA Pro Ex", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5397, "FUS1ON Tournament Controller", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x541a, "PowerA Xbox One Mini Wired Controller", 0, XTYPE_XBOXONE },
+	{ 0x24c6, 0x542a, "Xbox ONE spectra", 0, XTYPE_XBOXONE },
+	{ 0x24c6, 0x543a, "PowerA Xbox One wired controller", 0, XTYPE_XBOXONE },
+	{ 0x24c6, 0x5500, "Hori XBOX 360 EX 2 with Turbo", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5501, "Hori Real Arcade Pro VX-SA", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5502, "Hori Fighting Stick VX Alt", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5503, "Hori Fighting Edge", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5506, "Hori SOULCALIBUR V Stick", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5510, "Hori Fighting Commander ONE (Xbox 360/PC Mode)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x24c6, 0x550d, "Hori GEM Xbox controller", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x550e, "Hori Real Arcade Pro V Kai 360", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x24c6, 0x551a, "PowerA FUSION Pro Controller", 0, XTYPE_XBOXONE },
+	{ 0x24c6, 0x561a, "PowerA FUSION Controller", 0, XTYPE_XBOXONE },
+	{ 0x24c6, 0x5b00, "ThrustMaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5b02, "Thrustmaster, Inc. GPX Controller", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5b03, "Thrustmaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
+	{ 0x24c6, 0xfafe, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x2563, 0x058d, "OneXPlayer Gamepad", 0, XTYPE_XBOX360 },
+	{ 0x2dc8, 0x2000, "8BitDo Pro 2 Wired Controller fox Xbox", 0, XTYPE_XBOXONE },
+	{ 0x31e3, 0x1100, "Wooting One", 0, XTYPE_XBOX360 },
+	{ 0x31e3, 0x1200, "Wooting Two", 0, XTYPE_XBOX360 },
+	{ 0x31e3, 0x1210, "Wooting Lekker", 0, XTYPE_XBOX360 },
+	{ 0x31e3, 0x1220, "Wooting Two HE", 0, XTYPE_XBOX360 },
+	{ 0x31e3, 0x1300, "Wooting 60HE (AVR)", 0, XTYPE_XBOX360 },
+	{ 0x31e3, 0x1310, "Wooting 60HE (ARM)", 0, XTYPE_XBOX360 },
+	{ 0x3285, 0x0607, "Nacon GC-100", 0, XTYPE_XBOX360 },
+	{ 0x3767, 0x0101, "Fanatec Speedster 3 Forceshock Wheel", 0, XTYPE_XBOX },
+	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
+	{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
+};
+
+/* buttons shared with xbox and xbox360 */
+static const signed short xpad_common_btn[] = {
+	BTN_A, BTN_B, BTN_X, BTN_Y,			/* "analog" buttons */
+	BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR,	/* start/back/sticks */
+	-1						/* terminating entry */
+};
+
+/* original xbox controllers only */
+static const signed short xpad_btn[] = {
+	BTN_C, BTN_Z,		/* "analog" buttons */
+	-1			/* terminating entry */
+};
+
+/* used when dpad is mapped to buttons */
+static const signed short xpad_btn_pad[] = {
+	BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2,		/* d-pad left, right */
+	BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4,		/* d-pad up, down */
+	-1				/* terminating entry */
+};
+
+/* used when triggers are mapped to buttons */
+static const signed short xpad_btn_triggers[] = {
+	BTN_TL2, BTN_TR2,		/* triggers left/right */
+	-1
+};
+
+static const signed short xpad360_btn[] = {  /* buttons for x360 controller */
+	BTN_TL, BTN_TR,		/* Button LB/RB */
+	BTN_MODE,		/* The big X button */
+	-1
+};
+
+static const signed short xpad_abs[] = {
+	ABS_X, ABS_Y,		/* left stick */
+	ABS_RX, ABS_RY,		/* right stick */
+	-1			/* terminating entry */
+};
+
+/* used when dpad is mapped to axes */
+static const signed short xpad_abs_pad[] = {
+	ABS_HAT0X, ABS_HAT0Y,	/* d-pad axes */
+	-1			/* terminating entry */
+};
+
+/* used when triggers are mapped to axes */
+static const signed short xpad_abs_triggers[] = {
+	ABS_Z, ABS_RZ,		/* triggers left/right */
+	-1
+};
+
+/* used when the controller has extra paddle buttons */
+static const signed short xpad_btn_paddles[] = {
+	BTN_TRIGGER_HAPPY5, BTN_TRIGGER_HAPPY6, /* paddle upper right, lower right */
+	BTN_TRIGGER_HAPPY7, BTN_TRIGGER_HAPPY8, /* paddle upper left, lower left */
+	-1						/* terminating entry */
+};
+
+/*
+ * Xbox 360 has a vendor-specific class, so we cannot match it with only
+ * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
+ * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
+ * wireless controllers have protocol 129.
+ */
+#define XPAD_XBOX360_VENDOR_PROTOCOL(vend, pr) \
+	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
+	.idVendor = (vend), \
+	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
+	.bInterfaceSubClass = 93, \
+	.bInterfaceProtocol = (pr)
+#define XPAD_XBOX360_VENDOR(vend) \
+	{ XPAD_XBOX360_VENDOR_PROTOCOL((vend), 1) }, \
+	{ XPAD_XBOX360_VENDOR_PROTOCOL((vend), 129) }
+
+/* The Xbox One controller uses subclass 71 and protocol 208. */
+#define XPAD_XBOXONE_VENDOR_PROTOCOL(vend, pr) \
+	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
+	.idVendor = (vend), \
+	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
+	.bInterfaceSubClass = 71, \
+	.bInterfaceProtocol = (pr)
+#define XPAD_XBOXONE_VENDOR(vend) \
+	{ XPAD_XBOXONE_VENDOR_PROTOCOL((vend), 208) }
+
+static const struct usb_device_id xpad_table[] = {
+	{ USB_INTERFACE_INFO('X', 'B', 0) },	/* X-Box USB-IF not approved class */
+	XPAD_XBOX360_VENDOR(0x0079),		/* GPD Win 2 Controller */
+	XPAD_XBOX360_VENDOR(0x03eb),		/* Wooting Keyboards (Legacy) */
+	XPAD_XBOX360_VENDOR(0x044f),		/* Thrustmaster X-Box 360 controllers */
+	XPAD_XBOXONE_VENDOR(0x03f0),		/* HP HyperX Xbox One Controllers */
+	XPAD_XBOX360_VENDOR(0x045e),		/* Microsoft X-Box 360 controllers */
+	XPAD_XBOXONE_VENDOR(0x045e),		/* Microsoft X-Box One controllers */
+	XPAD_XBOX360_VENDOR(0x046d),		/* Logitech X-Box 360 style controllers */
+	XPAD_XBOX360_VENDOR(0x056e),		/* Elecom JC-U3613M */
+	XPAD_XBOX360_VENDOR(0x06a3),		/* Saitek P3600 */
+	XPAD_XBOX360_VENDOR(0x0738),		/* Mad Catz X-Box 360 controllers */
+	{ USB_DEVICE(0x0738, 0x4540) },		/* Mad Catz Beat Pad */
+	XPAD_XBOXONE_VENDOR(0x0738),		/* Mad Catz FightStick TE 2 */
+	XPAD_XBOX360_VENDOR(0x07ff),		/* Mad Catz GamePad */
+	XPAD_XBOX360_VENDOR(0x0c12),		/* Zeroplus X-Box 360 controllers */
+	XPAD_XBOX360_VENDOR(0x0e6f),		/* 0x0e6f X-Box 360 controllers */
+	XPAD_XBOXONE_VENDOR(0x0e6f),		/* 0x0e6f X-Box One controllers */
+	XPAD_XBOX360_VENDOR(0x0f0d),		/* Hori Controllers */
+	XPAD_XBOXONE_VENDOR(0x0f0d),		/* Hori Controllers */
+	XPAD_XBOX360_VENDOR(0x1038),		/* SteelSeries Controllers */
+	XPAD_XBOXONE_VENDOR(0x10f5),		/* Turtle Beach Controllers */
+	XPAD_XBOX360_VENDOR(0x11c9),		/* Nacon GC100XF */
+	XPAD_XBOX360_VENDOR(0x11ff),		/* PXN V900 */
+	XPAD_XBOX360_VENDOR(0x1209),		/* Ardwiino Controllers */
+	XPAD_XBOX360_VENDOR(0x12ab),		/* X-Box 360 dance pads */
+	XPAD_XBOX360_VENDOR(0x1430),		/* RedOctane X-Box 360 controllers */
+	XPAD_XBOX360_VENDOR(0x146b),		/* BigBen Interactive Controllers */
+	XPAD_XBOX360_VENDOR(0x1532),		/* Razer Sabertooth */
+	XPAD_XBOXONE_VENDOR(0x1532),		/* Razer Wildcat */
+	XPAD_XBOX360_VENDOR(0x15e4),		/* Numark X-Box 360 controllers */
+	XPAD_XBOX360_VENDOR(0x162e),		/* Joytech X-Box 360 controllers */
+	XPAD_XBOX360_VENDOR(0x1689),		/* Razer Onza */
+	XPAD_XBOX360_VENDOR(0x1949),		/* Amazon controllers */
+	XPAD_XBOX360_VENDOR(0x1bad),		/* Harminix Rock Band Guitar and Drums */
+	XPAD_XBOX360_VENDOR(0x20d6),		/* PowerA Controllers */
+	XPAD_XBOXONE_VENDOR(0x20d6),		/* PowerA Controllers */
+	XPAD_XBOX360_VENDOR(0x24c6),		/* PowerA Controllers */
+	XPAD_XBOXONE_VENDOR(0x24c6),		/* PowerA Controllers */
+	XPAD_XBOX360_VENDOR(0x2563),		/* OneXPlayer Gamepad */
+	XPAD_XBOX360_VENDOR(0x260d),		/* Dareu H101 */
+	XPAD_XBOXONE_VENDOR(0x2dc8),		/* 8BitDo Pro 2 Wired Controller for Xbox */
+	XPAD_XBOXONE_VENDOR(0x2e24),		/* Hyperkin Duke X-Box One pad */
+	XPAD_XBOX360_VENDOR(0x2f24),		/* GameSir Controllers */
+	XPAD_XBOX360_VENDOR(0x31e3),		/* Wooting Keyboards */
+	XPAD_XBOX360_VENDOR(0x3285),		/* Nacon GC-100 */
+	{ }
+};
+
+MODULE_DEVICE_TABLE(usb, xpad_table);
+
+struct xboxone_init_packet {
+	u16 idVendor;
+	u16 idProduct;
+	const u8 *data;
+	u8 len;
+};
+
+#define XBOXONE_INIT_PKT(_vid, _pid, _data)		\
+	{						\
+		.idVendor	= (_vid),		\
+		.idProduct	= (_pid),		\
+		.data		= (_data),		\
+		.len		= ARRAY_SIZE(_data),	\
+	}
+
+/*
+ * starting with xbox one, the game input protocol is used
+ * magic numbers are taken from
+ * - https://github.com/xpadneo/gip-dissector/blob/main/src/gip-dissector.lua
+ * - https://github.com/medusalix/xone/blob/master/bus/protocol.c
+ */
+#define GIP_CMD_ACK      0x01
+#define GIP_CMD_IDENTIFY 0x04
+#define GIP_CMD_POWER    0x05
+#define GIP_CMD_AUTHENTICATE 0x06
+#define GIP_CMD_VIRTUAL_KEY  0x07
+#define GIP_CMD_RUMBLE   0x09
+#define GIP_CMD_LED      0x0a
+#define GIP_CMD_FIRMWARE 0x0c
+#define GIP_CMD_INPUT    0x20
+
+#define GIP_SEQ0 0x00
+
+#define GIP_OPT_ACK      0x10
+#define GIP_OPT_INTERNAL 0x20
+
+/*
+ * length of the command payload encoded with
+ * https://en.wikipedia.org/wiki/LEB128
+ * which is a no-op for N < 128
+ */
+#define GIP_PL_LEN(N) (N)
+
+/*
+ * payload specific defines
+ */
+#define GIP_PWR_ON 0x00
+#define GIP_LED_ON 0x01
+
+#define GIP_MOTOR_R  BIT(0)
+#define GIP_MOTOR_L  BIT(1)
+#define GIP_MOTOR_RT BIT(2)
+#define GIP_MOTOR_LT BIT(3)
+#define GIP_MOTOR_ALL (GIP_MOTOR_R | GIP_MOTOR_L | GIP_MOTOR_RT | GIP_MOTOR_LT)
+
+/*
+ * This packet is required for all Xbox One pads with 2015
+ * or later firmware installed (or present from the factory).
+ */
+static const u8 xboxone_power_on[] = {
+	GIP_CMD_POWER, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(1), GIP_PWR_ON
+};
+
+/*
+ * This packet is required for Xbox One S (0x045e:0x02ea)
+ * and Xbox One Elite Series 2 (0x045e:0x0b00) pads to
+ * initialize the controller that was previously used in
+ * Bluetooth mode.
+ */
+static const u8 xboxone_s_init[] = {
+	GIP_CMD_POWER, GIP_OPT_INTERNAL, GIP_SEQ0, 0x0f, 0x06
+};
+
+/*
+ * This packet is required to get additional input data
+ * from Xbox One Elite Series 2 (0x045e:0x0b00) pads.
+ * We mostly do this right now to get paddle data
+ */
+static const u8 extra_input_packet_init[] = {
+	0x4d, 0x10, 0x01, 0x02, 0x07, 0x00
+};
+
+/*
+ * This packet is required for the Titanfall 2 Xbox One pads
+ * (0x0e6f:0x0165) to finish initialization and for Hori pads
+ * (0x0f0d:0x0067) to make the analog sticks work.
+ */
+static const u8 xboxone_hori_ack_id[] = {
+	GIP_CMD_ACK, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(9),
+	0x00, GIP_CMD_IDENTIFY, GIP_OPT_INTERNAL, 0x3a, 0x00, 0x00, 0x00, 0x80, 0x00
+};
+
+/*
+ * This packet is required for most (all?) of the PDP pads to start
+ * sending input reports. These pads include: (0x0e6f:0x02ab),
+ * (0x0e6f:0x02a4), (0x0e6f:0x02a6).
+ */
+static const u8 xboxone_pdp_led_on[] = {
+	GIP_CMD_LED, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(3), 0x00, GIP_LED_ON, 0x14
+};
+
+/*
+ * This packet is required for most (all?) of the PDP pads to start
+ * sending input reports. These pads include: (0x0e6f:0x02ab),
+ * (0x0e6f:0x02a4), (0x0e6f:0x02a6).
+ */
+static const u8 xboxone_pdp_auth[] = {
+	GIP_CMD_AUTHENTICATE, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(2), 0x01, 0x00
+};
+
+/*
+ * A specific rumble packet is required for some PowerA pads to start
+ * sending input reports. One of those pads is (0x24c6:0x543a).
+ */
+static const u8 xboxone_rumblebegin_init[] = {
+	GIP_CMD_RUMBLE, 0x00, GIP_SEQ0, GIP_PL_LEN(9),
+	0x00, GIP_MOTOR_ALL, 0x00, 0x00, 0x1D, 0x1D, 0xFF, 0x00, 0x00
+};
+
+/*
+ * A rumble packet with zero FF intensity will immediately
+ * terminate the rumbling required to init PowerA pads.
+ * This should happen fast enough that the motors don't
+ * spin up to enough speed to actually vibrate the gamepad.
+ */
+static const u8 xboxone_rumbleend_init[] = {
+	GIP_CMD_RUMBLE, 0x00, GIP_SEQ0, GIP_PL_LEN(9),
+	0x00, GIP_MOTOR_ALL, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+/*
+ * This specifies the selection of init packets that a gamepad
+ * will be sent on init *and* the order in which they will be
+ * sent. The correct sequence number will be added when the
+ * packet is going to be sent.
+ */
+static const struct xboxone_init_packet xboxone_init_packets[] = {
+	XBOXONE_INIT_PKT(0x0e6f, 0x0165, xboxone_hori_ack_id),
+	XBOXONE_INIT_PKT(0x0f0d, 0x0067, xboxone_hori_ack_id),
+	XBOXONE_INIT_PKT(0x0000, 0x0000, xboxone_power_on),
+	XBOXONE_INIT_PKT(0x045e, 0x02ea, xboxone_s_init),
+	XBOXONE_INIT_PKT(0x045e, 0x0b00, xboxone_s_init),
+	XBOXONE_INIT_PKT(0x045e, 0x0b00, extra_input_packet_init),
+	XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_led_on),
+	XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_auth),
+	XBOXONE_INIT_PKT(0x24c6, 0x541a, xboxone_rumblebegin_init),
+	XBOXONE_INIT_PKT(0x24c6, 0x542a, xboxone_rumblebegin_init),
+	XBOXONE_INIT_PKT(0x24c6, 0x543a, xboxone_rumblebegin_init),
+	XBOXONE_INIT_PKT(0x24c6, 0x541a, xboxone_rumbleend_init),
+	XBOXONE_INIT_PKT(0x24c6, 0x542a, xboxone_rumbleend_init),
+	XBOXONE_INIT_PKT(0x24c6, 0x543a, xboxone_rumbleend_init),
+};
+
+struct xpad_output_packet {
+	u8 data[XPAD_PKT_LEN];
+	u8 len;
+	bool pending;
+};
+
+#define XPAD_OUT_CMD_IDX	0
+#define XPAD_OUT_FF_IDX		1
+#define XPAD_OUT_LED_IDX	(1 + IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF))
+#define XPAD_NUM_OUT_PACKETS	(1 + \
+				 IS_ENABLED(CONFIG_JOYSTICK_XPAD_FF) + \
+				 IS_ENABLED(CONFIG_JOYSTICK_XPAD_LEDS))
+
+struct usb_xpad {
+	struct input_dev *dev;		/* input device interface */
+	struct input_dev __rcu *x360w_dev;
+	struct usb_device *udev;	/* usb device */
+	struct usb_interface *intf;	/* usb interface */
+
+	bool pad_present;
+	bool input_created;
+
+	struct urb *irq_in;		/* urb for interrupt in report */
+	unsigned char *idata;		/* input data */
+	dma_addr_t idata_dma;
+
+	struct urb *irq_out;		/* urb for interrupt out report */
+	struct usb_anchor irq_out_anchor;
+	bool irq_out_active;		/* we must not use an active URB */
+	u8 odata_serial;		/* serial number for xbox one protocol */
+	unsigned char *odata;		/* output data */
+	dma_addr_t odata_dma;
+	spinlock_t odata_lock;
+
+	struct xpad_output_packet out_packets[XPAD_NUM_OUT_PACKETS];
+	int last_out_packet;
+	int init_seq;
+
+#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
+	struct xpad_led *led;
+#endif
+
+	char phys[64];			/* physical device path */
+
+	int mapping;			/* map d-pad to buttons or to axes */
+	int xtype;			/* type of xbox device */
+	int packet_type;		/* type of the extended packet */
+	int pad_nr;			/* the order x360 pads were attached */
+	const char *name;		/* name of the device */
+	struct work_struct work;	/* init/remove device from callback */
+	time64_t mode_btn_down_ts;
+};
+
+static int xpad_init_input(struct usb_xpad *xpad);
+static void xpad_deinit_input(struct usb_xpad *xpad);
+static void xpadone_ack_mode_report(struct usb_xpad *xpad, u8 seq_num);
+static void xpad360w_poweroff_controller(struct usb_xpad *xpad);
+
+/*
+ *	xpad_process_packet
+ *
+ *	Completes a request by converting the data into events for the
+ *	input subsystem.
+ *
+ *	The used report descriptor was taken from ITO Takayukis website:
+ *	 http://euc.jp/periphs/xbox-controller.ja.html
+ */
+static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+	struct input_dev *dev = xpad->dev;
+
+	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+		/* left stick */
+		input_report_abs(dev, ABS_X,
+				 (__s16) le16_to_cpup((__le16 *)(data + 12)));
+		input_report_abs(dev, ABS_Y,
+				 ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
+
+		/* right stick */
+		input_report_abs(dev, ABS_RX,
+				 (__s16) le16_to_cpup((__le16 *)(data + 16)));
+		input_report_abs(dev, ABS_RY,
+				 ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
+	}
+
+	/* triggers left/right */
+	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+		input_report_key(dev, BTN_TL2, data[10]);
+		input_report_key(dev, BTN_TR2, data[11]);
+	} else {
+		input_report_abs(dev, ABS_Z, data[10]);
+		input_report_abs(dev, ABS_RZ, data[11]);
+	}
+
+	/* digital pad */
+	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+		/* dpad as buttons (left, right, up, down) */
+		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & BIT(2));
+		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & BIT(3));
+		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & BIT(0));
+		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & BIT(1));
+	} else {
+		input_report_abs(dev, ABS_HAT0X,
+				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
+		input_report_abs(dev, ABS_HAT0Y,
+				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
+	}
+
+	/* start/back buttons and stick press left/right */
+	input_report_key(dev, BTN_START,  data[2] & BIT(4));
+	input_report_key(dev, BTN_SELECT, data[2] & BIT(5));
+	input_report_key(dev, BTN_THUMBL, data[2] & BIT(6));
+	input_report_key(dev, BTN_THUMBR, data[2] & BIT(7));
+
+	/* "analog" buttons A, B, X, Y */
+	input_report_key(dev, BTN_A, data[4]);
+	input_report_key(dev, BTN_B, data[5]);
+	input_report_key(dev, BTN_X, data[6]);
+	input_report_key(dev, BTN_Y, data[7]);
+
+	/* "analog" buttons black, white */
+	input_report_key(dev, BTN_C, data[8]);
+	input_report_key(dev, BTN_Z, data[9]);
+
+
+	input_sync(dev);
+}
+
+/*
+ *	xpad360_process_packet
+ *
+ *	Completes a request by converting the data into events for the
+ *	input subsystem. It is version for xbox 360 controller
+ *
+ *	The used report descriptor was taken from:
+ *		http://www.free60.org/wiki/Gamepad
+ */
+
+static void xpad360_process_packet(struct usb_xpad *xpad, struct input_dev *dev,
+				   u16 cmd, unsigned char *data)
+{
+	/* valid pad data */
+	if (data[0] != 0x00)
+		return;
+
+	/* digital pad */
+	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+		/* dpad as buttons (left, right, up, down) */
+		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & BIT(2));
+		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & BIT(3));
+		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & BIT(0));
+		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & BIT(1));
+	}
+
+	/*
+	 * This should be a simple else block. However historically
+	 * xbox360w has mapped DPAD to buttons while xbox360 did not. This
+	 * made no sense, but now we can not just switch back and have to
+	 * support both behaviors.
+	 */
+	if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) ||
+	    xpad->xtype == XTYPE_XBOX360W) {
+		input_report_abs(dev, ABS_HAT0X,
+				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
+		input_report_abs(dev, ABS_HAT0Y,
+				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
+	}
+
+	/* start/back buttons */
+	input_report_key(dev, BTN_START,  data[2] & BIT(4));
+	input_report_key(dev, BTN_SELECT, data[2] & BIT(5));
+
+	/* stick press left/right */
+	input_report_key(dev, BTN_THUMBL, data[2] & BIT(6));
+	input_report_key(dev, BTN_THUMBR, data[2] & BIT(7));
+
+	/* buttons A,B,X,Y,TL,TR and MODE */
+	input_report_key(dev, BTN_A,	data[3] & BIT(4));
+	input_report_key(dev, BTN_B,	data[3] & BIT(5));
+	input_report_key(dev, BTN_X,	data[3] & BIT(6));
+	input_report_key(dev, BTN_Y,	data[3] & BIT(7));
+	input_report_key(dev, BTN_TL,	data[3] & BIT(0));
+	input_report_key(dev, BTN_TR,	data[3] & BIT(1));
+	input_report_key(dev, BTN_MODE,	data[3] & BIT(2));
+
+	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+		/* left stick */
+		input_report_abs(dev, ABS_X,
+				 (__s16) le16_to_cpup((__le16 *)(data + 6)));
+		input_report_abs(dev, ABS_Y,
+				 ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
+
+		/* right stick */
+		input_report_abs(dev, ABS_RX,
+				 (__s16) le16_to_cpup((__le16 *)(data + 10)));
+		input_report_abs(dev, ABS_RY,
+				 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
+	}
+
+	/* triggers left/right */
+	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+		input_report_key(dev, BTN_TL2, data[4]);
+		input_report_key(dev, BTN_TR2, data[5]);
+	} else {
+		input_report_abs(dev, ABS_Z, data[4]);
+		input_report_abs(dev, ABS_RZ, data[5]);
+	}
+
+	input_sync(dev);
+
+	/* XBOX360W controllers can't be turned off without driver assistance */
+	if (xpad->xtype == XTYPE_XBOX360W) {
+		if (xpad->mode_btn_down_ts > 0 && xpad->pad_present &&
+		    ((ktime_get_seconds() - xpad->mode_btn_down_ts) >=
+		     XPAD360W_POWEROFF_TIMEOUT)) {
+			xpad360w_poweroff_controller(xpad);
+			xpad->mode_btn_down_ts = 0;
+			return;
+		}
+
+		/* mode button down/up */
+		if (data[3] & BIT(2))
+			xpad->mode_btn_down_ts = ktime_get_seconds();
+		else
+			xpad->mode_btn_down_ts = 0;
+	}
+}
+
+static void xpad_presence_work(struct work_struct *work)
+{
+	struct usb_xpad *xpad = container_of(work, struct usb_xpad, work);
+	int error;
+
+	if (xpad->pad_present) {
+		error = xpad_init_input(xpad);
+		if (error) {
+			/* complain only, not much else we can do here */
+			dev_err(&xpad->dev->dev,
+				"unable to init device: %d\n", error);
+		} else {
+			rcu_assign_pointer(xpad->x360w_dev, xpad->dev);
+		}
+	} else {
+		RCU_INIT_POINTER(xpad->x360w_dev, NULL);
+		synchronize_rcu();
+		/*
+		 * Now that we are sure xpad360w_process_packet is not
+		 * using input device we can get rid of it.
+		 */
+		xpad_deinit_input(xpad);
+	}
+}
+
+/*
+ * xpad360w_process_packet
+ *
+ * Completes a request by converting the data into events for the
+ * input subsystem. It is version for xbox 360 wireless controller.
+ *
+ * Byte.Bit
+ * 00.1 - Status change: The controller or headset has connected/disconnected
+ *                       Bits 01.7 and 01.6 are valid
+ * 01.7 - Controller present
+ * 01.6 - Headset present
+ * 01.1 - Pad state (Bytes 4+) valid
+ *
+ */
+static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+	struct input_dev *dev;
+	bool present;
+
+	/* Presence change */
+	if (data[0] & 0x08) {
+		present = (data[1] & 0x80) != 0;
+
+		if (xpad->pad_present != present) {
+			xpad->pad_present = present;
+			schedule_work(&xpad->work);
+		}
+	}
+
+	/* Valid pad data */
+	if (data[1] != 0x1)
+		return;
+
+	rcu_read_lock();
+	dev = rcu_dereference(xpad->x360w_dev);
+	if (dev)
+		xpad360_process_packet(xpad, dev, cmd, &data[4]);
+	rcu_read_unlock();
+}
+
+/*
+ *	xpadone_process_packet
+ *
+ *	Completes a request by converting the data into events for the
+ *	input subsystem. This version is for the Xbox One controller.
+ *
+ *	The report format was gleaned from
+ *	https://github.com/kylelemons/xbox/blob/master/xbox.go
+ */
+static void xpadone_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+	struct input_dev *dev = xpad->dev;
+	bool do_sync = false;
+
+	/* the xbox button has its own special report */
+	if (data[0] == GIP_CMD_VIRTUAL_KEY) {
+		/*
+		 * The Xbox One S controller requires these reports to be
+		 * acked otherwise it continues sending them forever and
+		 * won't report further mode button events.
+		 */
+		if (data[1] == (GIP_OPT_ACK | GIP_OPT_INTERNAL))
+			xpadone_ack_mode_report(xpad, data[2]);
+
+		input_report_key(dev, BTN_MODE, data[4] & GENMASK(1, 0));
+		input_sync(dev);
+
+		do_sync = true;
+	} else if (data[0] == GIP_CMD_FIRMWARE) {
+		/* Some packet formats force us to use this separate to poll paddle inputs */
+		if (xpad->packet_type == PKT_XBE2_FW_5_11) {
+			/* Mute paddles if controller is in a custom profile slot
+			 * Checked by looking at the active profile slot to
+			 * verify it's the default slot
+			 */
+			if (data[19] != 0)
+				data[18] = 0;
+
+			/* Elite Series 2 split packet paddle bits */
+			input_report_key(dev, BTN_TRIGGER_HAPPY5, data[18] & BIT(0));
+			input_report_key(dev, BTN_TRIGGER_HAPPY6, data[18] & BIT(1));
+			input_report_key(dev, BTN_TRIGGER_HAPPY7, data[18] & BIT(2));
+			input_report_key(dev, BTN_TRIGGER_HAPPY8, data[18] & BIT(3));
+
+			do_sync = true;
+		}
+	} else if (data[0] == GIP_CMD_INPUT) { /* The main valid packet type for inputs */
+		/* menu/view buttons */
+		input_report_key(dev, BTN_START,  data[4] & BIT(2));
+		input_report_key(dev, BTN_SELECT, data[4] & BIT(3));
+		if (xpad->mapping & MAP_SELECT_BUTTON)
+			input_report_key(dev, KEY_RECORD, data[22] & BIT(0));
+
+		/* buttons A,B,X,Y */
+		input_report_key(dev, BTN_A,	data[4] & BIT(4));
+		input_report_key(dev, BTN_B,	data[4] & BIT(5));
+		input_report_key(dev, BTN_X,	data[4] & BIT(6));
+		input_report_key(dev, BTN_Y,	data[4] & BIT(7));
+
+		/* digital pad */
+		if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+			/* dpad as buttons (left, right, up, down) */
+			input_report_key(dev, BTN_TRIGGER_HAPPY1, data[5] & BIT(2));
+			input_report_key(dev, BTN_TRIGGER_HAPPY2, data[5] & BIT(3));
+			input_report_key(dev, BTN_TRIGGER_HAPPY3, data[5] & BIT(0));
+			input_report_key(dev, BTN_TRIGGER_HAPPY4, data[5] & BIT(1));
+		} else {
+			input_report_abs(dev, ABS_HAT0X,
+					!!(data[5] & 0x08) - !!(data[5] & 0x04));
+			input_report_abs(dev, ABS_HAT0Y,
+					!!(data[5] & 0x02) - !!(data[5] & 0x01));
+		}
+
+		/* TL/TR */
+		input_report_key(dev, BTN_TL,	data[5] & BIT(4));
+		input_report_key(dev, BTN_TR,	data[5] & BIT(5));
+
+		/* stick press left/right */
+		input_report_key(dev, BTN_THUMBL, data[5] & BIT(6));
+		input_report_key(dev, BTN_THUMBR, data[5] & BIT(7));
+
+		if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+			/* left stick */
+			input_report_abs(dev, ABS_X,
+					(__s16) le16_to_cpup((__le16 *)(data + 10)));
+			input_report_abs(dev, ABS_Y,
+					~(__s16) le16_to_cpup((__le16 *)(data + 12)));
+
+			/* right stick */
+			input_report_abs(dev, ABS_RX,
+					(__s16) le16_to_cpup((__le16 *)(data + 14)));
+			input_report_abs(dev, ABS_RY,
+					~(__s16) le16_to_cpup((__le16 *)(data + 16)));
+		}
+
+		/* triggers left/right */
+		if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+			input_report_key(dev, BTN_TL2,
+					(__u16) le16_to_cpup((__le16 *)(data + 6)));
+			input_report_key(dev, BTN_TR2,
+					(__u16) le16_to_cpup((__le16 *)(data + 8)));
+		} else {
+			input_report_abs(dev, ABS_Z,
+					(__u16) le16_to_cpup((__le16 *)(data + 6)));
+			input_report_abs(dev, ABS_RZ,
+					(__u16) le16_to_cpup((__le16 *)(data + 8)));
+		}
+
+		/* Profile button has a value of 0-3, so it is reported as an axis */
+		if (xpad->mapping & MAP_PROFILE_BUTTON)
+			input_report_abs(dev, ABS_PROFILE, data[34]);
+
+		/* paddle handling */
+		/* based on SDL's SDL_hidapi_xboxone.c */
+		if (xpad->mapping & MAP_PADDLES) {
+			if (xpad->packet_type == PKT_XBE1) {
+				/* Mute paddles if controller has a custom mapping applied.
+				 * Checked by comparing the current mapping
+				 * config against the factory mapping config
+				 */
+				if (memcmp(&data[4], &data[18], 2) != 0)
+					data[32] = 0;
+
+				/* OG Elite Series Controller paddle bits */
+				input_report_key(dev, BTN_TRIGGER_HAPPY5, data[32] & BIT(1));
+				input_report_key(dev, BTN_TRIGGER_HAPPY6, data[32] & BIT(3));
+				input_report_key(dev, BTN_TRIGGER_HAPPY7, data[32] & BIT(0));
+				input_report_key(dev, BTN_TRIGGER_HAPPY8, data[32] & BIT(2));
+			} else if (xpad->packet_type == PKT_XBE2_FW_OLD) {
+				/* Mute paddles if controller has a custom mapping applied.
+				 * Checked by comparing the current mapping
+				 * config against the factory mapping config
+				 */
+				if (data[19] != 0)
+					data[18] = 0;
+
+				/* Elite Series 2 4.x firmware paddle bits */
+				input_report_key(dev, BTN_TRIGGER_HAPPY5, data[18] & BIT(0));
+				input_report_key(dev, BTN_TRIGGER_HAPPY6, data[18] & BIT(1));
+				input_report_key(dev, BTN_TRIGGER_HAPPY7, data[18] & BIT(2));
+				input_report_key(dev, BTN_TRIGGER_HAPPY8, data[18] & BIT(3));
+			} else if (xpad->packet_type == PKT_XBE2_FW_5_EARLY) {
+				/* Mute paddles if controller has a custom mapping applied.
+				 * Checked by comparing the current mapping
+				 * config against the factory mapping config
+				 */
+				if (data[23] != 0)
+					data[22] = 0;
+
+				/* Elite Series 2 5.x firmware paddle bits
+				 * (before the packet was split)
+				 */
+				input_report_key(dev, BTN_TRIGGER_HAPPY5, data[22] & BIT(0));
+				input_report_key(dev, BTN_TRIGGER_HAPPY6, data[22] & BIT(1));
+				input_report_key(dev, BTN_TRIGGER_HAPPY7, data[22] & BIT(2));
+				input_report_key(dev, BTN_TRIGGER_HAPPY8, data[22] & BIT(3));
+			}
+		}
+
+		do_sync = true;
+	}
+
+	if (do_sync)
+		input_sync(dev);
+}
+
+static void xpad_irq_in(struct urb *urb)
+{
+	struct usb_xpad *xpad = urb->context;
+	struct device *dev = &xpad->intf->dev;
+	int retval, status;
+
+	status = urb->status;
+
+	switch (status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
+			__func__, status);
+		return;
+	default:
+		dev_dbg(dev, "%s - nonzero urb status received: %d\n",
+			__func__, status);
+		goto exit;
+	}
+
+	switch (xpad->xtype) {
+	case XTYPE_XBOX360:
+		xpad360_process_packet(xpad, xpad->dev, 0, xpad->idata);
+		break;
+	case XTYPE_XBOX360W:
+		xpad360w_process_packet(xpad, 0, xpad->idata);
+		break;
+	case XTYPE_XBOXONE:
+		xpadone_process_packet(xpad, 0, xpad->idata);
+		break;
+	default:
+		xpad_process_packet(xpad, 0, xpad->idata);
+	}
+
+exit:
+	retval = usb_submit_urb(urb, GFP_ATOMIC);
+	if (retval)
+		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
+			__func__, retval);
+}
+
+/* Callers must hold xpad->odata_lock spinlock */
+static bool xpad_prepare_next_init_packet(struct usb_xpad *xpad)
+{
+	const struct xboxone_init_packet *init_packet;
+
+	if (xpad->xtype != XTYPE_XBOXONE)
+		return false;
+
+	/* Perform initialization sequence for Xbox One pads that require it */
+	while (xpad->init_seq < ARRAY_SIZE(xboxone_init_packets)) {
+		init_packet = &xboxone_init_packets[xpad->init_seq++];
+
+		if (init_packet->idVendor != 0 &&
+		    init_packet->idVendor != xpad->dev->id.vendor)
+			continue;
+
+		if (init_packet->idProduct != 0 &&
+		    init_packet->idProduct != xpad->dev->id.product)
+			continue;
+
+		/* This packet applies to our device, so prepare to send it */
+		memcpy(xpad->odata, init_packet->data, init_packet->len);
+		xpad->irq_out->transfer_buffer_length = init_packet->len;
+
+		/* Update packet with current sequence number */
+		xpad->odata[2] = xpad->odata_serial++;
+		return true;
+	}
+
+	return false;
+}
+
+/* Callers must hold xpad->odata_lock spinlock */
+static bool xpad_prepare_next_out_packet(struct usb_xpad *xpad)
+{
+	struct xpad_output_packet *pkt, *packet = NULL;
+	int i;
+
+	/* We may have init packets to send before we can send user commands */
+	if (xpad_prepare_next_init_packet(xpad))
+		return true;
+
+	for (i = 0; i < XPAD_NUM_OUT_PACKETS; i++) {
+		if (++xpad->last_out_packet >= XPAD_NUM_OUT_PACKETS)
+			xpad->last_out_packet = 0;
+
+		pkt = &xpad->out_packets[xpad->last_out_packet];
+		if (pkt->pending) {
+			dev_dbg(&xpad->intf->dev,
+				"%s - found pending output packet %d\n",
+				__func__, xpad->last_out_packet);
+			packet = pkt;
+			break;
+		}
+	}
+
+	if (packet) {
+		memcpy(xpad->odata, packet->data, packet->len);
+		xpad->irq_out->transfer_buffer_length = packet->len;
+		packet->pending = false;
+		return true;
+	}
+
+	return false;
+}
+
+/* Callers must hold xpad->odata_lock spinlock */
+static int xpad_try_sending_next_out_packet(struct usb_xpad *xpad)
+{
+	int error;
+
+	if (!xpad->irq_out_active && xpad_prepare_next_out_packet(xpad)) {
+		usb_anchor_urb(xpad->irq_out, &xpad->irq_out_anchor);
+		error = usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+		if (error) {
+			dev_err(&xpad->intf->dev,
+				"%s - usb_submit_urb failed with result %d\n",
+				__func__, error);
+			usb_unanchor_urb(xpad->irq_out);
+			return -EIO;
+		}
+
+		xpad->irq_out_active = true;
+	}
+
+	return 0;
+}
+
+static void xpad_irq_out(struct urb *urb)
+{
+	struct usb_xpad *xpad = urb->context;
+	struct device *dev = &xpad->intf->dev;
+	int status = urb->status;
+	int error;
+	unsigned long flags;
+
+	spin_lock_irqsave(&xpad->odata_lock, flags);
+
+	switch (status) {
+	case 0:
+		/* success */
+		xpad->irq_out_active = xpad_prepare_next_out_packet(xpad);
+		break;
+
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
+			__func__, status);
+		xpad->irq_out_active = false;
+		break;
+
+	default:
+		dev_dbg(dev, "%s - nonzero urb status received: %d\n",
+			__func__, status);
+		break;
+	}
+
+	if (xpad->irq_out_active) {
+		usb_anchor_urb(urb, &xpad->irq_out_anchor);
+		error = usb_submit_urb(urb, GFP_ATOMIC);
+		if (error) {
+			dev_err(dev,
+				"%s - usb_submit_urb failed with result %d\n",
+				__func__, error);
+			usb_unanchor_urb(urb);
+			xpad->irq_out_active = false;
+		}
+	}
+
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
+}
+
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad,
+			struct usb_endpoint_descriptor *ep_irq_out)
+{
+	int error;
+
+	if (xpad->xtype == XTYPE_UNKNOWN)
+		return 0;
+
+	init_usb_anchor(&xpad->irq_out_anchor);
+
+	xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
+					 GFP_KERNEL, &xpad->odata_dma);
+	if (!xpad->odata)
+		return -ENOMEM;
+
+	spin_lock_init(&xpad->odata_lock);
+
+	xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
+	if (!xpad->irq_out) {
+		error = -ENOMEM;
+		goto err_free_coherent;
+	}
+
+	usb_fill_int_urb(xpad->irq_out, xpad->udev,
+			 usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
+			 xpad->odata, XPAD_PKT_LEN,
+			 xpad_irq_out, xpad, ep_irq_out->bInterval);
+	xpad->irq_out->transfer_dma = xpad->odata_dma;
+	xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	return 0;
+
+err_free_coherent:
+	usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
+	return error;
+}
+
+static void xpad_stop_output(struct usb_xpad *xpad)
+{
+	if (xpad->xtype != XTYPE_UNKNOWN) {
+		if (!usb_wait_anchor_empty_timeout(&xpad->irq_out_anchor,
+						   5000)) {
+			dev_warn(&xpad->intf->dev,
+				 "timed out waiting for output URB to complete, killing\n");
+			usb_kill_anchored_urbs(&xpad->irq_out_anchor);
+		}
+	}
+}
+
+static void xpad_deinit_output(struct usb_xpad *xpad)
+{
+	if (xpad->xtype != XTYPE_UNKNOWN) {
+		usb_free_urb(xpad->irq_out);
+		usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
+				xpad->odata, xpad->odata_dma);
+	}
+}
+
+static int xpad_inquiry_pad_presence(struct usb_xpad *xpad)
+{
+	struct xpad_output_packet *packet =
+			&xpad->out_packets[XPAD_OUT_CMD_IDX];
+	unsigned long flags;
+	int retval;
+
+	spin_lock_irqsave(&xpad->odata_lock, flags);
+
+	packet->data[0] = 0x08;
+	packet->data[1] = 0x00;
+	packet->data[2] = 0x0F;
+	packet->data[3] = 0xC0;
+	packet->data[4] = 0x00;
+	packet->data[5] = 0x00;
+	packet->data[6] = 0x00;
+	packet->data[7] = 0x00;
+	packet->data[8] = 0x00;
+	packet->data[9] = 0x00;
+	packet->data[10] = 0x00;
+	packet->data[11] = 0x00;
+	packet->len = 12;
+	packet->pending = true;
+
+	/* Reset the sequence so we send out presence first */
+	xpad->last_out_packet = -1;
+	retval = xpad_try_sending_next_out_packet(xpad);
+
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
+
+	return retval;
+}
+
+static int xpad_start_xbox_one(struct usb_xpad *xpad)
+{
+	unsigned long flags;
+	int retval;
+
+	spin_lock_irqsave(&xpad->odata_lock, flags);
+
+	/*
+	 * Begin the init sequence by attempting to send a packet.
+	 * We will cycle through the init packet sequence before
+	 * sending any packets from the output ring.
+	 */
+	xpad->init_seq = 0;
+	retval = xpad_try_sending_next_out_packet(xpad);
+
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
+
+	return retval;
+}
+
+static void xpadone_ack_mode_report(struct usb_xpad *xpad, u8 seq_num)
+{
+	unsigned long flags;
+	struct xpad_output_packet *packet =
+			&xpad->out_packets[XPAD_OUT_CMD_IDX];
+	static const u8 mode_report_ack[] = {
+		GIP_CMD_ACK, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(9),
+		0x00, GIP_CMD_VIRTUAL_KEY, GIP_OPT_INTERNAL, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00
+	};
+
+	spin_lock_irqsave(&xpad->odata_lock, flags);
+
+	packet->len = sizeof(mode_report_ack);
+	memcpy(packet->data, mode_report_ack, packet->len);
+	packet->data[2] = seq_num;
+	packet->pending = true;
+
+	/* Reset the sequence so we send out the ack now */
+	xpad->last_out_packet = -1;
+	xpad_try_sending_next_out_packet(xpad);
+
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
+}
+
+#ifdef CONFIG_JOYSTICK_XPAD_FF
+static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
+{
+	struct usb_xpad *xpad = input_get_drvdata(dev);
+	struct xpad_output_packet *packet = &xpad->out_packets[XPAD_OUT_FF_IDX];
+	__u16 strong;
+	__u16 weak;
+	int retval;
+	unsigned long flags;
+
+	if (effect->type != FF_RUMBLE)
+		return 0;
+
+	strong = effect->u.rumble.strong_magnitude;
+	weak = effect->u.rumble.weak_magnitude;
+
+	spin_lock_irqsave(&xpad->odata_lock, flags);
+
+	switch (xpad->xtype) {
+	case XTYPE_XBOX:
+		packet->data[0] = 0x00;
+		packet->data[1] = 0x06;
+		packet->data[2] = 0x00;
+		packet->data[3] = strong / 256;	/* left actuator */
+		packet->data[4] = 0x00;
+		packet->data[5] = weak / 256;	/* right actuator */
+		packet->len = 6;
+		packet->pending = true;
+		break;
+
+	case XTYPE_XBOX360:
+		packet->data[0] = 0x00;
+		packet->data[1] = 0x08;
+		packet->data[2] = 0x00;
+		packet->data[3] = strong / 256;  /* left actuator? */
+		packet->data[4] = weak / 256;	/* right actuator? */
+		packet->data[5] = 0x00;
+		packet->data[6] = 0x00;
+		packet->data[7] = 0x00;
+		packet->len = 8;
+		packet->pending = true;
+		break;
+
+	case XTYPE_XBOX360W:
+		packet->data[0] = 0x00;
+		packet->data[1] = 0x01;
+		packet->data[2] = 0x0F;
+		packet->data[3] = 0xC0;
+		packet->data[4] = 0x00;
+		packet->data[5] = strong / 256;
+		packet->data[6] = weak / 256;
+		packet->data[7] = 0x00;
+		packet->data[8] = 0x00;
+		packet->data[9] = 0x00;
+		packet->data[10] = 0x00;
+		packet->data[11] = 0x00;
+		packet->len = 12;
+		packet->pending = true;
+		break;
+
+	case XTYPE_XBOXONE:
+		packet->data[0] = GIP_CMD_RUMBLE; /* activate rumble */
+		packet->data[1] = 0x00;
+		packet->data[2] = xpad->odata_serial++;
+		packet->data[3] = GIP_PL_LEN(9);
+		packet->data[4] = 0x00;
+		packet->data[5] = GIP_MOTOR_ALL;
+		packet->data[6] = 0x00; /* left trigger */
+		packet->data[7] = 0x00; /* right trigger */
+		packet->data[8] = strong / 512;	/* left actuator */
+		packet->data[9] = weak / 512;	/* right actuator */
+		packet->data[10] = 0xFF; /* on period */
+		packet->data[11] = 0x00; /* off period */
+		packet->data[12] = 0xFF; /* repeat count */
+		packet->len = 13;
+		packet->pending = true;
+		break;
+
+	default:
+		dev_dbg(&xpad->dev->dev,
+			"%s - rumble command sent to unsupported xpad type: %d\n",
+			__func__, xpad->xtype);
+		retval = -EINVAL;
+		goto out;
+	}
+
+	retval = xpad_try_sending_next_out_packet(xpad);
+
+out:
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
+	return retval;
+}
+
+static int xpad_init_ff(struct usb_xpad *xpad)
+{
+	if (xpad->xtype == XTYPE_UNKNOWN)
+		return 0;
+
+	input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
+
+	return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
+}
+
+#else
+static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
+#endif
+
+#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
+#include <linux/leds.h>
+#include <linux/idr.h>
+
+static DEFINE_IDA(xpad_pad_seq);
+
+struct xpad_led {
+	char name[16];
+	struct led_classdev led_cdev;
+	struct usb_xpad *xpad;
+};
+
+/*
+ * set the LEDs on Xbox360 / Wireless Controllers
+ * @param command
+ *  0: off
+ *  1: all blink, then previous setting
+ *  2: 1/top-left blink, then on
+ *  3: 2/top-right blink, then on
+ *  4: 3/bottom-left blink, then on
+ *  5: 4/bottom-right blink, then on
+ *  6: 1/top-left on
+ *  7: 2/top-right on
+ *  8: 3/bottom-left on
+ *  9: 4/bottom-right on
+ * 10: rotate
+ * 11: blink, based on previous setting
+ * 12: slow blink, based on previous setting
+ * 13: rotate with two lights
+ * 14: persistent slow all blink
+ * 15: blink once, then previous setting
+ */
+static void xpad_send_led_command(struct usb_xpad *xpad, int command)
+{
+	struct xpad_output_packet *packet =
+			&xpad->out_packets[XPAD_OUT_LED_IDX];
+	unsigned long flags;
+
+	command %= 16;
+
+	spin_lock_irqsave(&xpad->odata_lock, flags);
+
+	switch (xpad->xtype) {
+	case XTYPE_XBOX360:
+		packet->data[0] = 0x01;
+		packet->data[1] = 0x03;
+		packet->data[2] = command;
+		packet->len = 3;
+		packet->pending = true;
+		break;
+
+	case XTYPE_XBOX360W:
+		packet->data[0] = 0x00;
+		packet->data[1] = 0x00;
+		packet->data[2] = 0x08;
+		packet->data[3] = 0x40 + command;
+		packet->data[4] = 0x00;
+		packet->data[5] = 0x00;
+		packet->data[6] = 0x00;
+		packet->data[7] = 0x00;
+		packet->data[8] = 0x00;
+		packet->data[9] = 0x00;
+		packet->data[10] = 0x00;
+		packet->data[11] = 0x00;
+		packet->len = 12;
+		packet->pending = true;
+		break;
+	}
+
+	xpad_try_sending_next_out_packet(xpad);
+
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
+}
+
+/*
+ * Light up the segment corresponding to the pad number on
+ * Xbox 360 Controllers.
+ */
+static void xpad_identify_controller(struct usb_xpad *xpad)
+{
+	led_set_brightness(&xpad->led->led_cdev, (xpad->pad_nr % 4) + 2);
+}
+
+static void xpad_led_set(struct led_classdev *led_cdev,
+			 enum led_brightness value)
+{
+	struct xpad_led *xpad_led = container_of(led_cdev,
+						 struct xpad_led, led_cdev);
+
+	xpad_send_led_command(xpad_led->xpad, value);
+}
+
+static int xpad_led_probe(struct usb_xpad *xpad)
+{
+	struct xpad_led *led;
+	struct led_classdev *led_cdev;
+	int error;
+
+	if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX360W)
+		return 0;
+
+	xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
+	if (!led)
+		return -ENOMEM;
+
+	xpad->pad_nr = ida_simple_get(&xpad_pad_seq, 0, 0, GFP_KERNEL);
+	if (xpad->pad_nr < 0) {
+		error = xpad->pad_nr;
+		goto err_free_mem;
+	}
+
+	snprintf(led->name, sizeof(led->name), "xpad%d", xpad->pad_nr);
+	led->xpad = xpad;
+
+	led_cdev = &led->led_cdev;
+	led_cdev->name = led->name;
+	led_cdev->brightness_set = xpad_led_set;
+	led_cdev->flags = LED_CORE_SUSPENDRESUME;
+
+	error = led_classdev_register(&xpad->udev->dev, led_cdev);
+	if (error)
+		goto err_free_id;
+
+	xpad_identify_controller(xpad);
+
+	return 0;
+
+err_free_id:
+	ida_simple_remove(&xpad_pad_seq, xpad->pad_nr);
+err_free_mem:
+	kfree(led);
+	xpad->led = NULL;
+	return error;
+}
+
+static void xpad_led_disconnect(struct usb_xpad *xpad)
+{
+	struct xpad_led *xpad_led = xpad->led;
+
+	if (xpad_led) {
+		led_classdev_unregister(&xpad_led->led_cdev);
+		ida_simple_remove(&xpad_pad_seq, xpad->pad_nr);
+		kfree(xpad_led);
+	}
+}
+#else
+static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
+static void xpad_led_disconnect(struct usb_xpad *xpad) { }
+#endif
+
+static int xpad_start_input(struct usb_xpad *xpad)
+{
+	int error;
+
+	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
+		return -EIO;
+
+	if (xpad->xtype == XTYPE_XBOXONE) {
+		error = xpad_start_xbox_one(xpad);
+		if (error) {
+			usb_kill_urb(xpad->irq_in);
+			return error;
+		}
+	}
+
+	return 0;
+}
+
+static void xpad_stop_input(struct usb_xpad *xpad)
+{
+	usb_kill_urb(xpad->irq_in);
+}
+
+static void xpad360w_poweroff_controller(struct usb_xpad *xpad)
+{
+	unsigned long flags;
+	struct xpad_output_packet *packet =
+			&xpad->out_packets[XPAD_OUT_CMD_IDX];
+
+	spin_lock_irqsave(&xpad->odata_lock, flags);
+
+	packet->data[0] = 0x00;
+	packet->data[1] = 0x00;
+	packet->data[2] = 0x08;
+	packet->data[3] = 0xC0;
+	packet->data[4] = 0x00;
+	packet->data[5] = 0x00;
+	packet->data[6] = 0x00;
+	packet->data[7] = 0x00;
+	packet->data[8] = 0x00;
+	packet->data[9] = 0x00;
+	packet->data[10] = 0x00;
+	packet->data[11] = 0x00;
+	packet->len = 12;
+	packet->pending = true;
+
+	/* Reset the sequence so we send out poweroff now */
+	xpad->last_out_packet = -1;
+	xpad_try_sending_next_out_packet(xpad);
+
+	spin_unlock_irqrestore(&xpad->odata_lock, flags);
+}
+
+static int xpad360w_start_input(struct usb_xpad *xpad)
+{
+	int error;
+
+	error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
+	if (error)
+		return -EIO;
+
+	/*
+	 * Send presence packet.
+	 * This will force the controller to resend connection packets.
+	 * This is useful in the case we activate the module after the
+	 * adapter has been plugged in, as it won't automatically
+	 * send us info about the controllers.
+	 */
+	error = xpad_inquiry_pad_presence(xpad);
+	if (error) {
+		usb_kill_urb(xpad->irq_in);
+		return error;
+	}
+
+	return 0;
+}
+
+static void xpad360w_stop_input(struct usb_xpad *xpad)
+{
+	usb_kill_urb(xpad->irq_in);
+
+	/* Make sure we are done with presence work if it was scheduled */
+	flush_work(&xpad->work);
+}
+
+static int xpad_open(struct input_dev *dev)
+{
+	struct usb_xpad *xpad = input_get_drvdata(dev);
+
+	return xpad_start_input(xpad);
+}
+
+static void xpad_close(struct input_dev *dev)
+{
+	struct usb_xpad *xpad = input_get_drvdata(dev);
+
+	xpad_stop_input(xpad);
+}
+
+static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
+{
+	struct usb_xpad *xpad = input_get_drvdata(input_dev);
+
+	switch (abs) {
+	case ABS_X:
+	case ABS_Y:
+	case ABS_RX:
+	case ABS_RY:	/* the two sticks */
+		input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
+		break;
+	case ABS_Z:
+	case ABS_RZ:	/* the triggers (if mapped to axes) */
+		if (xpad->xtype == XTYPE_XBOXONE)
+			input_set_abs_params(input_dev, abs, 0, 1023, 0, 0);
+		else
+			input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
+		break;
+	case ABS_HAT0X:
+	case ABS_HAT0Y:	/* the d-pad (only if dpad is mapped to axes */
+		input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
+		break;
+	case ABS_PROFILE: /* 4 value profile button (such as on XAC) */
+		input_set_abs_params(input_dev, abs, 0, 4, 0, 0);
+		break;
+	default:
+		input_set_abs_params(input_dev, abs, 0, 0, 0, 0);
+		break;
+	}
+}
+
+static void xpad_deinit_input(struct usb_xpad *xpad)
+{
+	if (xpad->input_created) {
+		xpad->input_created = false;
+		xpad_led_disconnect(xpad);
+		input_unregister_device(xpad->dev);
+	}
+}
+
+static int xpad_init_input(struct usb_xpad *xpad)
+{
+	struct input_dev *input_dev;
+	int i, error;
+
+	input_dev = input_allocate_device();
+	if (!input_dev)
+		return -ENOMEM;
+
+	xpad->dev = input_dev;
+	input_dev->name = xpad->name;
+	input_dev->phys = xpad->phys;
+	usb_to_input_id(xpad->udev, &input_dev->id);
+
+	if (xpad->xtype == XTYPE_XBOX360W) {
+		/* x360w controllers and the receiver have different ids */
+		input_dev->id.product = 0x02a1;
+	}
+
+	input_dev->dev.parent = &xpad->intf->dev;
+
+	input_set_drvdata(input_dev, xpad);
+
+	if (xpad->xtype != XTYPE_XBOX360W) {
+		input_dev->open = xpad_open;
+		input_dev->close = xpad_close;
+	}
+
+	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+		/* set up axes */
+		for (i = 0; xpad_abs[i] >= 0; i++)
+			xpad_set_up_abs(input_dev, xpad_abs[i]);
+	}
+
+	/* set up standard buttons */
+	for (i = 0; xpad_common_btn[i] >= 0; i++)
+		input_set_capability(input_dev, EV_KEY, xpad_common_btn[i]);
+
+	/* set up model-specific ones */
+	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W ||
+	    xpad->xtype == XTYPE_XBOXONE) {
+		for (i = 0; xpad360_btn[i] >= 0; i++)
+			input_set_capability(input_dev, EV_KEY, xpad360_btn[i]);
+		if (xpad->mapping & MAP_SELECT_BUTTON)
+			input_set_capability(input_dev, EV_KEY, KEY_RECORD);
+	} else {
+		for (i = 0; xpad_btn[i] >= 0; i++)
+			input_set_capability(input_dev, EV_KEY, xpad_btn[i]);
+	}
+
+	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+		for (i = 0; xpad_btn_pad[i] >= 0; i++)
+			input_set_capability(input_dev, EV_KEY,
+					     xpad_btn_pad[i]);
+	}
+
+	/* set up paddles if the controller has them */
+	if (xpad->mapping & MAP_PADDLES) {
+		for (i = 0; xpad_btn_paddles[i] >= 0; i++)
+			input_set_capability(input_dev, EV_KEY, xpad_btn_paddles[i]);
+	}
+
+	/*
+	 * This should be a simple else block. However historically
+	 * xbox360w has mapped DPAD to buttons while xbox360 did not. This
+	 * made no sense, but now we can not just switch back and have to
+	 * support both behaviors.
+	 */
+	if (!(xpad->mapping & MAP_DPAD_TO_BUTTONS) ||
+	    xpad->xtype == XTYPE_XBOX360W) {
+		for (i = 0; xpad_abs_pad[i] >= 0; i++)
+			xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
+	}
+
+	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+		for (i = 0; xpad_btn_triggers[i] >= 0; i++)
+			input_set_capability(input_dev, EV_KEY,
+					     xpad_btn_triggers[i]);
+	} else {
+		for (i = 0; xpad_abs_triggers[i] >= 0; i++)
+			xpad_set_up_abs(input_dev, xpad_abs_triggers[i]);
+	}
+
+	/* setup profile button as an axis with 4 possible values */
+	if (xpad->mapping & MAP_PROFILE_BUTTON)
+		xpad_set_up_abs(input_dev, ABS_PROFILE);
+
+	error = xpad_init_ff(xpad);
+	if (error)
+		goto err_free_input;
+
+	error = xpad_led_probe(xpad);
+	if (error)
+		goto err_destroy_ff;
+
+	error = input_register_device(xpad->dev);
+	if (error)
+		goto err_disconnect_led;
+
+	xpad->input_created = true;
+	return 0;
+
+err_disconnect_led:
+	xpad_led_disconnect(xpad);
+err_destroy_ff:
+	input_ff_destroy(input_dev);
+err_free_input:
+	input_free_device(input_dev);
+	return error;
+}
+
+static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct usb_xpad *xpad;
+	struct usb_endpoint_descriptor *ep_irq_in, *ep_irq_out;
+	int i, error;
+
+	if (intf->cur_altsetting->desc.bNumEndpoints != 2)
+		return -ENODEV;
+
+	for (i = 0; xpad_device[i].idVendor; i++) {
+		if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
+		    (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
+			break;
+	}
+
+	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
+	if (!xpad)
+		return -ENOMEM;
+
+	usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
+	strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
+
+	xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
+					 GFP_KERNEL, &xpad->idata_dma);
+	if (!xpad->idata) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
+	if (!xpad->irq_in) {
+		error = -ENOMEM;
+		goto err_free_idata;
+	}
+
+	xpad->udev = udev;
+	xpad->intf = intf;
+	xpad->mapping = xpad_device[i].mapping;
+	xpad->xtype = xpad_device[i].xtype;
+	xpad->name = xpad_device[i].name;
+	xpad->packet_type = PKT_XB;
+	INIT_WORK(&xpad->work, xpad_presence_work);
+
+	if (xpad->xtype == XTYPE_UNKNOWN) {
+		if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
+			if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
+				xpad->xtype = XTYPE_XBOX360W;
+			else if (intf->cur_altsetting->desc.bInterfaceProtocol == 208)
+				xpad->xtype = XTYPE_XBOXONE;
+			else
+				xpad->xtype = XTYPE_XBOX360;
+		} else {
+			xpad->xtype = XTYPE_XBOX;
+		}
+
+		if (dpad_to_buttons)
+			xpad->mapping |= MAP_DPAD_TO_BUTTONS;
+		if (triggers_to_buttons)
+			xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
+		if (sticks_to_null)
+			xpad->mapping |= MAP_STICKS_TO_NULL;
+	}
+
+	if (xpad->xtype == XTYPE_XBOXONE &&
+	    intf->cur_altsetting->desc.bInterfaceNumber != 0) {
+		/*
+		 * The Xbox One controller lists three interfaces all with the
+		 * same interface class, subclass and protocol. Differentiate by
+		 * interface number.
+		 */
+		error = -ENODEV;
+		goto err_free_in_urb;
+	}
+
+	ep_irq_in = ep_irq_out = NULL;
+
+	for (i = 0; i < 2; i++) {
+		struct usb_endpoint_descriptor *ep =
+				&intf->cur_altsetting->endpoint[i].desc;
+
+		if (usb_endpoint_xfer_int(ep)) {
+			if (usb_endpoint_dir_in(ep))
+				ep_irq_in = ep;
+			else
+				ep_irq_out = ep;
+		}
+	}
+
+	if (!ep_irq_in || !ep_irq_out) {
+		error = -ENODEV;
+		goto err_free_in_urb;
+	}
+
+	error = xpad_init_output(intf, xpad, ep_irq_out);
+	if (error)
+		goto err_free_in_urb;
+
+	usb_fill_int_urb(xpad->irq_in, udev,
+			 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
+			 xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
+			 xpad, ep_irq_in->bInterval);
+	xpad->irq_in->transfer_dma = xpad->idata_dma;
+	xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	usb_set_intfdata(intf, xpad);
+
+	/* Packet type detection */
+	if (le16_to_cpu(udev->descriptor.idVendor) == 0x045e) { /* Microsoft controllers */
+		if (le16_to_cpu(udev->descriptor.idProduct) == 0x02e3) {
+			/* The original elite controller always uses the oldest
+			 * type of extended packet
+			 */
+			xpad->packet_type = PKT_XBE1;
+		} else if (le16_to_cpu(udev->descriptor.idProduct) == 0x0b00) {
+			/* The elite 2 controller has seen multiple packet
+			 * revisions. These are tied to specific firmware
+			 * versions
+			 */
+			if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x0500) {
+				/* This is the format that the Elite 2 used
+				 * prior to the BLE update
+				 */
+				xpad->packet_type = PKT_XBE2_FW_OLD;
+			} else if (le16_to_cpu(udev->descriptor.bcdDevice) <
+				   0x050b) {
+				/* This is the format that the Elite 2 used
+				 * prior to the update that split the packet
+				 */
+				xpad->packet_type = PKT_XBE2_FW_5_EARLY;
+			} else {
+				/* The split packet format that was introduced
+				 * in firmware v5.11
+				 */
+				xpad->packet_type = PKT_XBE2_FW_5_11;
+			}
+		}
+	}
+
+	if (xpad->xtype == XTYPE_XBOX360W) {
+		/*
+		 * Submit the int URB immediately rather than waiting for open
+		 * because we get status messages from the device whether
+		 * or not any controllers are attached.  In fact, it's
+		 * exactly the message that a controller has arrived that
+		 * we're waiting for.
+		 */
+		error = xpad360w_start_input(xpad);
+		if (error)
+			goto err_deinit_output;
+		/*
+		 * Wireless controllers require RESET_RESUME to work properly
+		 * after suspend. Ideally this quirk should be in usb core
+		 * quirk list, but we have too many vendors producing these
+		 * controllers and we'd need to maintain 2 identical lists
+		 * here in this driver and in usb core.
+		 */
+		udev->quirks |= USB_QUIRK_RESET_RESUME;
+	} else {
+		error = xpad_init_input(xpad);
+		if (error)
+			goto err_deinit_output;
+	}
+	return 0;
+
+err_deinit_output:
+	xpad_deinit_output(xpad);
+err_free_in_urb:
+	usb_free_urb(xpad->irq_in);
+err_free_idata:
+	usb_free_coherent(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
+err_free_mem:
+	kfree(xpad);
+	return error;
+}
+
+static void xpad_disconnect(struct usb_interface *intf)
+{
+	struct usb_xpad *xpad = usb_get_intfdata(intf);
+
+	if (xpad->xtype == XTYPE_XBOX360W)
+		xpad360w_stop_input(xpad);
+
+	xpad_deinit_input(xpad);
+
+	/*
+	 * Now that both input device and LED device are gone we can
+	 * stop output URB.
+	 */
+	xpad_stop_output(xpad);
+
+	xpad_deinit_output(xpad);
+
+	usb_free_urb(xpad->irq_in);
+	usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
+			xpad->idata, xpad->idata_dma);
+
+	kfree(xpad);
+
+	usb_set_intfdata(intf, NULL);
+}
+
+static int xpad_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct usb_xpad *xpad = usb_get_intfdata(intf);
+	struct input_dev *input = xpad->dev;
+
+	if (xpad->xtype == XTYPE_XBOX360W) {
+		/*
+		 * Wireless controllers always listen to input so
+		 * they are notified when controller shows up
+		 * or goes away.
+		 */
+		xpad360w_stop_input(xpad);
+
+		/*
+		 * The wireless adapter is going off now, so the
+		 * gamepads are going to become disconnected.
+		 * Unless explicitly disabled, power them down
+		 * so they don't just sit there flashing.
+		 */
+		if (auto_poweroff && xpad->pad_present)
+			xpad360w_poweroff_controller(xpad);
+	} else {
+		mutex_lock(&input->mutex);
+		if (input_device_enabled(input))
+			xpad_stop_input(xpad);
+		mutex_unlock(&input->mutex);
+	}
+
+	xpad_stop_output(xpad);
+
+	return 0;
+}
+
+static int xpad_resume(struct usb_interface *intf)
+{
+	struct usb_xpad *xpad = usb_get_intfdata(intf);
+	struct input_dev *input = xpad->dev;
+	int retval = 0;
+
+	if (xpad->xtype == XTYPE_XBOX360W) {
+		retval = xpad360w_start_input(xpad);
+	} else {
+		mutex_lock(&input->mutex);
+		if (input_device_enabled(input)) {
+			retval = xpad_start_input(xpad);
+		} else if (xpad->xtype == XTYPE_XBOXONE) {
+			/*
+			 * Even if there are no users, we'll send Xbox One pads
+			 * the startup sequence so they don't sit there and
+			 * blink until somebody opens the input device again.
+			 */
+			retval = xpad_start_xbox_one(xpad);
+		}
+		mutex_unlock(&input->mutex);
+	}
+
+	return retval;
+}
+
+static struct usb_driver xpad_driver = {
+	.name		= "xpad",
+	.probe		= xpad_probe,
+	.disconnect	= xpad_disconnect,
+	.suspend	= xpad_suspend,
+	.resume		= xpad_resume,
+	.id_table	= xpad_table,
+};
+
+module_usb_driver(xpad_driver);
+
+MODULE_AUTHOR("Marko Friedemann <mfr@bmx-chemnitz.de>");
+MODULE_DESCRIPTION("X-Box pad driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/joystick/zhenhua.c b/drivers/input/joystick/zhenhua.c
new file mode 100644
index 000000000..3f2460e2b
--- /dev/null
+++ b/drivers/input/joystick/zhenhua.c
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  derived from "twidjoy.c"
+ *
+ *  Copyright (c) 2008 Martin Kebert
+ *  Copyright (c) 2001 Arndt Schoenewald
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ *  Copyright (c) 2000 Mark Fletcher
+ */
+
+/*
+ * Driver to use 4CH RC transmitter using Zhen Hua 5-byte protocol (Walkera Lama,
+ * EasyCopter etc.) as a joystick under Linux.
+ *
+ * RC transmitters using Zhen Hua 5-byte protocol are cheap four channels
+ * transmitters for control a RC planes or RC helicopters with possibility to
+ * connect on a serial port.
+ * Data coming from transmitter is in this order:
+ * 1. byte = synchronisation byte
+ * 2. byte = X axis
+ * 3. byte = Y axis
+ * 4. byte = RZ axis
+ * 5. byte = Z axis
+ * (and this is repeated)
+ *
+ * For questions or feedback regarding this driver module please contact:
+ * Martin Kebert <gkmarty@gmail.com> - but I am not a C-programmer nor kernel
+ * coder :-(
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/bitrev.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC	"RC transmitter with 5-byte Zhen Hua protocol joystick driver"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define ZHENHUA_MAX_LENGTH 5
+
+/*
+ * Zhen Hua data.
+ */
+
+struct zhenhua {
+	struct input_dev *dev;
+	int idx;
+	unsigned char data[ZHENHUA_MAX_LENGTH];
+	char phys[32];
+};
+
+/*
+ * zhenhua_process_packet() decodes packets the driver receives from the
+ * RC transmitter. It updates the data accordingly.
+ */
+
+static void zhenhua_process_packet(struct zhenhua *zhenhua)
+{
+	struct input_dev *dev = zhenhua->dev;
+	unsigned char *data = zhenhua->data;
+
+	input_report_abs(dev, ABS_Y, data[1]);
+	input_report_abs(dev, ABS_X, data[2]);
+	input_report_abs(dev, ABS_RZ, data[3]);
+	input_report_abs(dev, ABS_Z, data[4]);
+
+	input_sync(dev);
+}
+
+/*
+ * zhenhua_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t zhenhua_interrupt(struct serio *serio, unsigned char data, unsigned int flags)
+{
+	struct zhenhua *zhenhua = serio_get_drvdata(serio);
+
+	/* All Zhen Hua packets are 5 bytes. The fact that the first byte
+	 * is allways 0xf7 and all others are in range 0x32 - 0xc8 (50-200)
+	 * can be used to check and regain sync. */
+
+	if (data == 0xef)
+		zhenhua->idx = 0;	/* this byte starts a new packet */
+	else if (zhenhua->idx == 0)
+		return IRQ_HANDLED;	/* wrong MSB -- ignore this byte */
+
+	if (zhenhua->idx < ZHENHUA_MAX_LENGTH)
+		zhenhua->data[zhenhua->idx++] = bitrev8(data);
+
+	if (zhenhua->idx == ZHENHUA_MAX_LENGTH) {
+		zhenhua_process_packet(zhenhua);
+		zhenhua->idx = 0;
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * zhenhua_disconnect() is the opposite of zhenhua_connect()
+ */
+
+static void zhenhua_disconnect(struct serio *serio)
+{
+	struct zhenhua *zhenhua = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(zhenhua->dev);
+	kfree(zhenhua);
+}
+
+/*
+ * zhenhua_connect() is the routine that is called when someone adds a
+ * new serio device. It looks for the Twiddler, and if found, registers
+ * it as an input device.
+ */
+
+static int zhenhua_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct zhenhua *zhenhua;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+
+	zhenhua = kzalloc(sizeof(struct zhenhua), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!zhenhua || !input_dev)
+		goto fail1;
+
+	zhenhua->dev = input_dev;
+	snprintf(zhenhua->phys, sizeof(zhenhua->phys), "%s/input0", serio->phys);
+
+	input_dev->name = "Zhen Hua 5-byte device";
+	input_dev->phys = zhenhua->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_ZHENHUA;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT(EV_ABS);
+	input_set_abs_params(input_dev, ABS_X, 50, 200, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y, 50, 200, 0, 0);
+	input_set_abs_params(input_dev, ABS_Z, 50, 200, 0, 0);
+	input_set_abs_params(input_dev, ABS_RZ, 50, 200, 0, 0);
+
+	serio_set_drvdata(serio, zhenhua);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(zhenhua->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(zhenhua);
+	return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id zhenhua_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_ZHENHUA,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, zhenhua_serio_ids);
+
+static struct serio_driver zhenhua_drv = {
+	.driver		= {
+		.name	= "zhenhua",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= zhenhua_serio_ids,
+	.interrupt	= zhenhua_interrupt,
+	.connect	= zhenhua_connect,
+	.disconnect	= zhenhua_disconnect,
+};
+
+module_serio_driver(zhenhua_drv);