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-rw-r--r--drivers/media/usb/au0828/Kconfig41
-rw-r--r--drivers/media/usb/au0828/Makefile17
-rw-r--r--drivers/media/usb/au0828/au0828-cards.c346
-rw-r--r--drivers/media/usb/au0828/au0828-cards.h13
-rw-r--r--drivers/media/usb/au0828/au0828-core.c853
-rw-r--r--drivers/media/usb/au0828/au0828-dvb.c684
-rw-r--r--drivers/media/usb/au0828/au0828-i2c.c393
-rw-r--r--drivers/media/usb/au0828/au0828-input.c398
-rw-r--r--drivers/media/usb/au0828/au0828-reg.h52
-rw-r--r--drivers/media/usb/au0828/au0828-vbi.c77
-rw-r--r--drivers/media/usb/au0828/au0828-video.c2044
-rw-r--r--drivers/media/usb/au0828/au0828.h373
12 files changed, 5291 insertions, 0 deletions
diff --git a/drivers/media/usb/au0828/Kconfig b/drivers/media/usb/au0828/Kconfig
new file mode 100644
index 000000000..31799b6ff
--- /dev/null
+++ b/drivers/media/usb/au0828/Kconfig
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config VIDEO_AU0828
+ tristate "Auvitek AU0828 support"
+ depends on I2C && INPUT && DVB_CORE && USB && VIDEO_DEV
+ select MEDIA_CONTROLLER
+ select MEDIA_CONTROLLER_DVB
+ select I2C_ALGOBIT
+ select VIDEO_TVEEPROM
+ select VIDEOBUF2_VMALLOC if VIDEO_DEV
+ select DVB_AU8522_DTV if MEDIA_SUBDRV_AUTOSELECT
+ select MEDIA_TUNER_XC5000 if MEDIA_SUBDRV_AUTOSELECT
+ select MEDIA_TUNER_MXL5007T if MEDIA_SUBDRV_AUTOSELECT
+ select MEDIA_TUNER_TDA18271 if MEDIA_SUBDRV_AUTOSELECT
+ help
+ This is a hybrid analog/digital tv capture driver for
+ Auvitek's AU0828 USB device.
+
+ To compile this driver as a module, choose M here: the
+ module will be called au0828
+
+config VIDEO_AU0828_V4L2
+ bool "Auvitek AU0828 v4l2 analog video support"
+ depends on VIDEO_AU0828
+ depends on VIDEO_DEV=y || VIDEO_DEV=VIDEO_AU0828
+ select DVB_AU8522_V4L if MEDIA_SUBDRV_AUTOSELECT
+ select VIDEO_TUNER
+ default y
+ help
+ This is a video4linux driver for Auvitek's USB device.
+
+ Choose Y here to include support for v4l2 analog video
+ capture within the au0828 driver.
+
+config VIDEO_AU0828_RC
+ bool "AU0828 Remote Controller support"
+ depends on RC_CORE
+ depends on !(RC_CORE=m && VIDEO_AU0828=y)
+ depends on VIDEO_AU0828
+ help
+ Enables Remote Controller support on au0828 driver.
diff --git a/drivers/media/usb/au0828/Makefile b/drivers/media/usb/au0828/Makefile
new file mode 100644
index 000000000..4347812d1
--- /dev/null
+++ b/drivers/media/usb/au0828/Makefile
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
+au0828-objs := au0828-core.o au0828-i2c.o au0828-cards.o au0828-dvb.o
+
+ifeq ($(CONFIG_VIDEO_AU0828_V4L2),y)
+ au0828-objs += au0828-video.o au0828-vbi.o
+endif
+
+ifeq ($(CONFIG_VIDEO_AU0828_RC),y)
+ au0828-objs += au0828-input.o
+endif
+
+obj-$(CONFIG_VIDEO_AU0828) += au0828.o
+
+ccflags-y += -I $(srctree)/drivers/media/tuners
+ccflags-y += -I $(srctree)/drivers/media/dvb-frontends
+
+ccflags-y += $(extra-cflags-y) $(extra-cflags-m)
diff --git a/drivers/media/usb/au0828/au0828-cards.c b/drivers/media/usb/au0828/au0828-cards.c
new file mode 100644
index 000000000..9ee21f8bf
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-cards.c
@@ -0,0 +1,346 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for the Auvitek USB bridge
+ *
+ * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ */
+
+#include "au0828.h"
+#include "au0828-cards.h"
+#include "au8522.h"
+#include "media/tuner.h"
+#include "media/v4l2-common.h"
+
+static void hvr950q_cs5340_audio(void *priv, int enable)
+{
+ /* Because the HVR-950q shares an i2s bus between the cs5340 and the
+ au8522, we need to hold cs5340 in reset when using the au8522 */
+ struct au0828_dev *dev = priv;
+ if (enable == 1)
+ au0828_set(dev, REG_000, 0x10);
+ else
+ au0828_clear(dev, REG_000, 0x10);
+}
+
+/*
+ * WARNING: There's a quirks table at sound/usb/quirks-table.h
+ * that should also be updated every time a new device with V4L2 support
+ * is added here.
+ */
+struct au0828_board au0828_boards[] = {
+ [AU0828_BOARD_UNKNOWN] = {
+ .name = "Unknown board",
+ .tuner_type = -1U,
+ .tuner_addr = ADDR_UNSET,
+ },
+ [AU0828_BOARD_HAUPPAUGE_HVR850] = {
+ .name = "Hauppauge HVR850",
+ .tuner_type = TUNER_XC5000,
+ .tuner_addr = 0x61,
+ .has_ir_i2c = 1,
+ .has_analog = 1,
+ .i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+ .input = {
+ {
+ .type = AU0828_VMUX_TELEVISION,
+ .vmux = AU8522_COMPOSITE_CH4_SIF,
+ .amux = AU8522_AUDIO_SIF,
+ },
+ {
+ .type = AU0828_VMUX_COMPOSITE,
+ .vmux = AU8522_COMPOSITE_CH1,
+ .amux = AU8522_AUDIO_NONE,
+ .audio_setup = hvr950q_cs5340_audio,
+ },
+ {
+ .type = AU0828_VMUX_SVIDEO,
+ .vmux = AU8522_SVIDEO_CH13,
+ .amux = AU8522_AUDIO_NONE,
+ .audio_setup = hvr950q_cs5340_audio,
+ },
+ },
+ },
+ [AU0828_BOARD_HAUPPAUGE_HVR950Q] = {
+ .name = "Hauppauge HVR950Q",
+ .tuner_type = TUNER_XC5000,
+ .tuner_addr = 0x61,
+ .has_ir_i2c = 1,
+ .has_analog = 1,
+ .i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+ .input = {
+ {
+ .type = AU0828_VMUX_TELEVISION,
+ .vmux = AU8522_COMPOSITE_CH4_SIF,
+ .amux = AU8522_AUDIO_SIF,
+ },
+ {
+ .type = AU0828_VMUX_COMPOSITE,
+ .vmux = AU8522_COMPOSITE_CH1,
+ .amux = AU8522_AUDIO_NONE,
+ .audio_setup = hvr950q_cs5340_audio,
+ },
+ {
+ .type = AU0828_VMUX_SVIDEO,
+ .vmux = AU8522_SVIDEO_CH13,
+ .amux = AU8522_AUDIO_NONE,
+ .audio_setup = hvr950q_cs5340_audio,
+ },
+ },
+ },
+ [AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL] = {
+ .name = "Hauppauge HVR950Q rev xxF8",
+ .tuner_type = TUNER_XC5000,
+ .tuner_addr = 0x61,
+ .i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+ },
+ [AU0828_BOARD_DVICO_FUSIONHDTV7] = {
+ .name = "DViCO FusionHDTV USB",
+ .tuner_type = TUNER_XC5000,
+ .tuner_addr = 0x61,
+ .i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+ },
+ [AU0828_BOARD_HAUPPAUGE_WOODBURY] = {
+ .name = "Hauppauge Woodbury",
+ .tuner_type = TUNER_NXP_TDA18271,
+ .tuner_addr = 0x60,
+ .i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+ },
+};
+
+/* Tuner callback function for au0828 boards. Currently only needed
+ * for HVR1500Q, which has an xc5000 tuner.
+ */
+int au0828_tuner_callback(void *priv, int component, int command, int arg)
+{
+ struct au0828_dev *dev = priv;
+
+ dprintk(1, "%s()\n", __func__);
+
+ switch (dev->boardnr) {
+ case AU0828_BOARD_HAUPPAUGE_HVR850:
+ case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+ case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
+ case AU0828_BOARD_DVICO_FUSIONHDTV7:
+ if (command == 0) {
+ /* Tuner Reset Command from xc5000 */
+ /* Drive the tuner into reset and out */
+ au0828_clear(dev, REG_001, 2);
+ mdelay(10);
+ au0828_set(dev, REG_001, 2);
+ mdelay(10);
+ return 0;
+ } else {
+ pr_err("%s(): Unknown command.\n", __func__);
+ return -EINVAL;
+ }
+ break;
+ }
+
+ return 0; /* Should never be here */
+}
+
+static void hauppauge_eeprom(struct au0828_dev *dev, u8 *eeprom_data)
+{
+ struct tveeprom tv;
+
+ tveeprom_hauppauge_analog(&tv, eeprom_data);
+ dev->board.tuner_type = tv.tuner_type;
+
+ /* Make sure we support the board model */
+ switch (tv.model) {
+ case 72000: /* WinTV-HVR950q (Retail, IR, ATSC/QAM */
+ case 72001: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
+ case 72101: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
+ case 72201: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
+ case 72211: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
+ case 72221: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
+ case 72231: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
+ case 72241: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
+ case 72251: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
+ case 72261: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
+ case 72271: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
+ case 72281: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
+ case 72301: /* WinTV-HVR850 (Retail, IR, ATSC and analog video */
+ case 72500: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM */
+ break;
+ default:
+ pr_warn("%s: warning: unknown hauppauge model #%d\n",
+ __func__, tv.model);
+ break;
+ }
+
+ pr_info("%s: hauppauge eeprom: model=%d\n",
+ __func__, tv.model);
+}
+
+void au0828_card_analog_fe_setup(struct au0828_dev *dev);
+
+void au0828_card_setup(struct au0828_dev *dev)
+{
+ static u8 eeprom[256];
+
+ dprintk(1, "%s()\n", __func__);
+
+ if (dev->i2c_rc == 0) {
+ dev->i2c_client.addr = 0xa0 >> 1;
+ tveeprom_read(&dev->i2c_client, eeprom, sizeof(eeprom));
+ }
+
+ switch (dev->boardnr) {
+ case AU0828_BOARD_HAUPPAUGE_HVR850:
+ case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+ case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
+ case AU0828_BOARD_HAUPPAUGE_WOODBURY:
+ if (dev->i2c_rc == 0)
+ hauppauge_eeprom(dev, eeprom+0xa0);
+ break;
+ }
+
+ au0828_card_analog_fe_setup(dev);
+}
+
+void au0828_card_analog_fe_setup(struct au0828_dev *dev)
+{
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+ struct tuner_setup tun_setup;
+ struct v4l2_subdev *sd;
+ unsigned int mode_mask = T_ANALOG_TV;
+
+ if (AUVI_INPUT(0).type != AU0828_VMUX_UNDEFINED) {
+ /* Load the analog demodulator driver (note this would need to
+ be abstracted out if we ever need to support a different
+ demod) */
+ sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
+ "au8522", 0x8e >> 1, NULL);
+ if (sd == NULL)
+ pr_err("analog subdev registration failed\n");
+ }
+
+ /* Setup tuners */
+ if (dev->board.tuner_type != TUNER_ABSENT && dev->board.has_analog) {
+ /* Load the tuner module, which does the attach */
+ sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
+ "tuner", dev->board.tuner_addr, NULL);
+ if (sd == NULL)
+ pr_err("tuner subdev registration fail\n");
+
+ tun_setup.mode_mask = mode_mask;
+ tun_setup.type = dev->board.tuner_type;
+ tun_setup.addr = dev->board.tuner_addr;
+ tun_setup.tuner_callback = au0828_tuner_callback;
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr,
+ &tun_setup);
+ }
+#endif
+}
+
+/*
+ * The bridge has between 8 and 12 gpios.
+ * Regs 1 and 0 deal with output enables.
+ * Regs 3 and 2 deal with direction.
+ */
+void au0828_gpio_setup(struct au0828_dev *dev)
+{
+ dprintk(1, "%s()\n", __func__);
+
+ switch (dev->boardnr) {
+ case AU0828_BOARD_HAUPPAUGE_HVR850:
+ case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+ case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
+ case AU0828_BOARD_HAUPPAUGE_WOODBURY:
+ /* GPIO's
+ * 4 - CS5340
+ * 5 - AU8522 Demodulator
+ * 6 - eeprom W/P
+ * 7 - power supply
+ * 9 - XC5000 Tuner
+ */
+
+ /* Set relevant GPIOs as outputs (leave the EEPROM W/P
+ as an input since we will never touch it and it has
+ a pullup) */
+ au0828_write(dev, REG_003, 0x02);
+ au0828_write(dev, REG_002, 0x80 | 0x20 | 0x10);
+
+ /* Into reset */
+ au0828_write(dev, REG_001, 0x0);
+ au0828_write(dev, REG_000, 0x0);
+ msleep(50);
+
+ /* Bring power supply out of reset */
+ au0828_write(dev, REG_000, 0x80);
+ msleep(50);
+
+ /* Bring xc5000 and au8522 out of reset (leave the
+ cs5340 in reset until needed) */
+ au0828_write(dev, REG_001, 0x02); /* xc5000 */
+ au0828_write(dev, REG_000, 0x80 | 0x20); /* PS + au8522 */
+
+ msleep(250);
+ break;
+ case AU0828_BOARD_DVICO_FUSIONHDTV7:
+ /* GPIO's
+ * 6 - ?
+ * 8 - AU8522 Demodulator
+ * 9 - XC5000 Tuner
+ */
+
+ /* Into reset */
+ au0828_write(dev, REG_003, 0x02);
+ au0828_write(dev, REG_002, 0xa0);
+ au0828_write(dev, REG_001, 0x0);
+ au0828_write(dev, REG_000, 0x0);
+ msleep(100);
+
+ /* Out of reset */
+ au0828_write(dev, REG_003, 0x02);
+ au0828_write(dev, REG_002, 0xa0);
+ au0828_write(dev, REG_001, 0x02);
+ au0828_write(dev, REG_000, 0xa0);
+ msleep(250);
+ break;
+ }
+}
+
+/* table of devices that work with this driver */
+struct usb_device_id au0828_usb_id_table[] = {
+ { USB_DEVICE(0x2040, 0x7200),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x2040, 0x7240),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR850 },
+ { USB_DEVICE(0x0fe9, 0xd620),
+ .driver_info = AU0828_BOARD_DVICO_FUSIONHDTV7 },
+ { USB_DEVICE(0x2040, 0x7210),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x2040, 0x7217),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x2040, 0x721b),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x2040, 0x721e),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x2040, 0x721f),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x2040, 0x7280),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x0fd9, 0x0008),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x2040, 0x7201),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
+ { USB_DEVICE(0x2040, 0x7211),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
+ { USB_DEVICE(0x2040, 0x7281),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
+ { USB_DEVICE(0x05e1, 0x0480),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_WOODBURY },
+ { USB_DEVICE(0x2040, 0x8200),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_WOODBURY },
+ { USB_DEVICE(0x2040, 0x7260),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x2040, 0x7213),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { USB_DEVICE(0x2040, 0x7270),
+ .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+ { },
+};
+
+MODULE_DEVICE_TABLE(usb, au0828_usb_id_table);
diff --git a/drivers/media/usb/au0828/au0828-cards.h b/drivers/media/usb/au0828/au0828-cards.h
new file mode 100644
index 000000000..a9cdf85f9
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-cards.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Driver for the Auvitek USB bridge
+ *
+ * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ */
+
+#define AU0828_BOARD_UNKNOWN 0
+#define AU0828_BOARD_HAUPPAUGE_HVR950Q 1
+#define AU0828_BOARD_HAUPPAUGE_HVR850 2
+#define AU0828_BOARD_DVICO_FUSIONHDTV7 3
+#define AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL 4
+#define AU0828_BOARD_HAUPPAUGE_WOODBURY 5
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
new file mode 100644
index 000000000..877e85a45
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -0,0 +1,853 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for the Auvitek USB bridge
+ *
+ * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ */
+
+#include "au0828.h"
+#include "au8522.h"
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <linux/mutex.h>
+
+/* Due to enum tuner_pad_index */
+#include <media/tuner.h>
+
+/*
+ * 1 = General debug messages
+ * 2 = USB handling
+ * 4 = I2C related
+ * 8 = Bridge related
+ * 16 = IR related
+ */
+int au0828_debug;
+module_param_named(debug, au0828_debug, int, 0644);
+MODULE_PARM_DESC(debug,
+ "set debug bitmask: 1=general, 2=USB, 4=I2C, 8=bridge, 16=IR");
+
+static unsigned int disable_usb_speed_check;
+module_param(disable_usb_speed_check, int, 0444);
+MODULE_PARM_DESC(disable_usb_speed_check,
+ "override min bandwidth requirement of 480M bps");
+
+#define _AU0828_BULKPIPE 0x03
+#define _BULKPIPESIZE 0xffff
+
+static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+ u16 index);
+static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+ u16 index, unsigned char *cp, u16 size);
+
+/* USB Direction */
+#define CMD_REQUEST_IN 0x00
+#define CMD_REQUEST_OUT 0x01
+
+u32 au0828_readreg(struct au0828_dev *dev, u16 reg)
+{
+ u8 result = 0;
+
+ recv_control_msg(dev, CMD_REQUEST_IN, 0, reg, &result, 1);
+ dprintk(8, "%s(0x%04x) = 0x%02x\n", __func__, reg, result);
+
+ return result;
+}
+
+u32 au0828_writereg(struct au0828_dev *dev, u16 reg, u32 val)
+{
+ dprintk(8, "%s(0x%04x, 0x%02x)\n", __func__, reg, val);
+ return send_control_msg(dev, CMD_REQUEST_OUT, val, reg);
+}
+
+static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+ u16 index)
+{
+ int status = -ENODEV;
+
+ if (dev->usbdev) {
+
+ /* cp must be memory that has been allocated by kmalloc */
+ status = usb_control_msg(dev->usbdev,
+ usb_sndctrlpipe(dev->usbdev, 0),
+ request,
+ USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE,
+ value, index, NULL, 0, 1000);
+
+ status = min(status, 0);
+
+ if (status < 0) {
+ pr_err("%s() Failed sending control message, error %d.\n",
+ __func__, status);
+ }
+
+ }
+
+ return status;
+}
+
+static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+ u16 index, unsigned char *cp, u16 size)
+{
+ int status = -ENODEV;
+ mutex_lock(&dev->mutex);
+ if (dev->usbdev) {
+ status = usb_control_msg(dev->usbdev,
+ usb_rcvctrlpipe(dev->usbdev, 0),
+ request,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ value, index,
+ dev->ctrlmsg, size, 1000);
+
+ status = min(status, 0);
+
+ if (status < 0) {
+ pr_err("%s() Failed receiving control message, error %d.\n",
+ __func__, status);
+ }
+
+ /* the host controller requires heap allocated memory, which
+ is why we didn't just pass "cp" into usb_control_msg */
+ memcpy(cp, dev->ctrlmsg, size);
+ }
+ mutex_unlock(&dev->mutex);
+ return status;
+}
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+static void au0828_media_graph_notify(struct media_entity *new,
+ void *notify_data);
+#endif
+
+static void au0828_unregister_media_device(struct au0828_dev *dev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+ struct media_device *mdev = dev->media_dev;
+ struct media_entity_notify *notify, *nextp;
+
+ if (!mdev || !media_devnode_is_registered(mdev->devnode))
+ return;
+
+ /* Remove au0828 entity_notify callbacks */
+ list_for_each_entry_safe(notify, nextp, &mdev->entity_notify, list) {
+ if (notify->notify != au0828_media_graph_notify)
+ continue;
+ media_device_unregister_entity_notify(mdev, notify);
+ }
+
+ /* clear enable_source, disable_source */
+ mutex_lock(&mdev->graph_mutex);
+ dev->media_dev->source_priv = NULL;
+ dev->media_dev->enable_source = NULL;
+ dev->media_dev->disable_source = NULL;
+ mutex_unlock(&mdev->graph_mutex);
+
+ media_device_delete(dev->media_dev, KBUILD_MODNAME, THIS_MODULE);
+ dev->media_dev = NULL;
+#endif
+}
+
+void au0828_usb_release(struct au0828_dev *dev)
+{
+ au0828_unregister_media_device(dev);
+
+ /* I2C */
+ au0828_i2c_unregister(dev);
+
+ kfree(dev);
+}
+
+static void au0828_usb_disconnect(struct usb_interface *interface)
+{
+ struct au0828_dev *dev = usb_get_intfdata(interface);
+
+ dprintk(1, "%s()\n", __func__);
+
+ /* there is a small window after disconnect, before
+ dev->usbdev is NULL, for poll (e.g: IR) try to access
+ the device and fill the dmesg with error messages.
+ Set the status so poll routines can check and avoid
+ access after disconnect.
+ */
+ set_bit(DEV_DISCONNECTED, &dev->dev_state);
+
+ au0828_rc_unregister(dev);
+ /* Digital TV */
+ au0828_dvb_unregister(dev);
+
+ usb_set_intfdata(interface, NULL);
+ mutex_lock(&dev->mutex);
+ dev->usbdev = NULL;
+ mutex_unlock(&dev->mutex);
+ if (au0828_analog_unregister(dev)) {
+ /*
+ * No need to call au0828_usb_release() if V4L2 is enabled,
+ * as this is already called via au0828_usb_v4l2_release()
+ */
+ return;
+ }
+ au0828_usb_release(dev);
+}
+
+static int au0828_media_device_init(struct au0828_dev *dev,
+ struct usb_device *udev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+ struct media_device *mdev;
+
+ mdev = media_device_usb_allocate(udev, KBUILD_MODNAME, THIS_MODULE);
+ if (IS_ERR(mdev))
+ return PTR_ERR(mdev);
+
+ dev->media_dev = mdev;
+#endif
+ return 0;
+}
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+static void au0828_media_graph_notify(struct media_entity *new,
+ void *notify_data)
+{
+ struct au0828_dev *dev = (struct au0828_dev *) notify_data;
+ int ret;
+ struct media_entity *entity, *mixer = NULL, *decoder = NULL;
+
+ if (!new) {
+ /*
+ * Called during au0828 probe time to connect
+ * entities that were created prior to registering
+ * the notify handler. Find mixer and decoder.
+ */
+ media_device_for_each_entity(entity, dev->media_dev) {
+ if (entity->function == MEDIA_ENT_F_AUDIO_MIXER)
+ mixer = entity;
+ else if (entity->function == MEDIA_ENT_F_ATV_DECODER)
+ decoder = entity;
+ }
+ goto create_link;
+ }
+
+ switch (new->function) {
+ case MEDIA_ENT_F_AUDIO_MIXER:
+ mixer = new;
+ if (dev->decoder)
+ decoder = dev->decoder;
+ break;
+ case MEDIA_ENT_F_ATV_DECODER:
+ /* In case, Mixer is added first, find mixer and create link */
+ media_device_for_each_entity(entity, dev->media_dev) {
+ if (entity->function == MEDIA_ENT_F_AUDIO_MIXER)
+ mixer = entity;
+ }
+ decoder = new;
+ break;
+ default:
+ break;
+ }
+
+create_link:
+ if (decoder && mixer) {
+ ret = media_get_pad_index(decoder, false,
+ PAD_SIGNAL_AUDIO);
+ if (ret >= 0)
+ ret = media_create_pad_link(decoder, ret,
+ mixer, 0,
+ MEDIA_LNK_FL_ENABLED);
+ if (ret < 0)
+ dev_err(&dev->usbdev->dev,
+ "Mixer Pad Link Create Error: %d\n", ret);
+ }
+}
+
+static bool au0828_is_link_shareable(struct media_entity *owner,
+ struct media_entity *entity)
+{
+ bool shareable = false;
+
+ /* Tuner link can be shared by audio, video, and VBI */
+ switch (owner->function) {
+ case MEDIA_ENT_F_IO_V4L:
+ case MEDIA_ENT_F_AUDIO_CAPTURE:
+ case MEDIA_ENT_F_IO_VBI:
+ if (entity->function == MEDIA_ENT_F_IO_V4L ||
+ entity->function == MEDIA_ENT_F_AUDIO_CAPTURE ||
+ entity->function == MEDIA_ENT_F_IO_VBI)
+ shareable = true;
+ break;
+ case MEDIA_ENT_F_DTV_DEMOD:
+ default:
+ break;
+ }
+ return shareable;
+}
+
+/* Callers should hold graph_mutex */
+static int au0828_enable_source(struct media_entity *entity,
+ struct media_pipeline *pipe)
+{
+ struct media_entity *source, *find_source;
+ struct media_entity *sink;
+ struct media_link *link, *found_link = NULL;
+ int ret = 0;
+ struct media_device *mdev = entity->graph_obj.mdev;
+ struct au0828_dev *dev;
+
+ if (!mdev)
+ return -ENODEV;
+
+ dev = mdev->source_priv;
+
+ /*
+ * For Audio and V4L2 entity, find the link to which decoder
+ * is the sink. Look for an active link between decoder and
+ * source (tuner/s-video/Composite), if one exists, nothing
+ * to do. If not, look for any active links between source
+ * and any other entity. If one exists, source is busy. If
+ * source is free, setup link and start pipeline from source.
+ * For DVB FE entity, the source for the link is the tuner.
+ * Check if tuner is available and setup link and start
+ * pipeline.
+ */
+ if (entity->function == MEDIA_ENT_F_DTV_DEMOD) {
+ sink = entity;
+ find_source = dev->tuner;
+ } else {
+ /* Analog isn't configured or register failed */
+ if (!dev->decoder) {
+ ret = -ENODEV;
+ goto end;
+ }
+
+ sink = dev->decoder;
+
+ /*
+ * Default input is tuner and default input_type
+ * is AU0828_VMUX_TELEVISION.
+ *
+ * There is a problem when s_input is called to
+ * change the default input. s_input will try to
+ * enable_source before attempting to change the
+ * input on the device, and will end up enabling
+ * default source which is tuner.
+ *
+ * Additional logic is necessary in au0828 to detect
+ * that the input has changed and enable the right
+ * source. au0828 handles this case in its s_input.
+ * It will disable the old source and enable the new
+ * source.
+ *
+ */
+ if (dev->input_type == AU0828_VMUX_TELEVISION)
+ find_source = dev->tuner;
+ else if (dev->input_type == AU0828_VMUX_SVIDEO ||
+ dev->input_type == AU0828_VMUX_COMPOSITE)
+ find_source = &dev->input_ent[dev->input_type];
+ else {
+ /* unknown input - let user select input */
+ ret = 0;
+ goto end;
+ }
+ }
+
+ /* Is there an active link between sink and source */
+ if (dev->active_link) {
+ if (dev->active_link_owner == entity) {
+ /* This check is necessary to handle multiple
+ * enable_source calls from v4l_ioctls during
+ * the course of video/vbi application run-time.
+ */
+ pr_debug("%s already owns the tuner\n", entity->name);
+ ret = 0;
+ goto end;
+ } else if (au0828_is_link_shareable(dev->active_link_owner,
+ entity)) {
+ /* Either ALSA or Video own tuner. Sink is the same
+ * for both. Allow sharing the active link between
+ * their common source (tuner) and sink (decoder).
+ * Starting pipeline between sharing entity and sink
+ * will fail with pipe mismatch, while owner has an
+ * active pipeline. Switch pipeline ownership from
+ * user to owner when owner disables the source.
+ */
+ dev->active_link_shared = true;
+ /* save the user info to use from disable */
+ dev->active_link_user = entity;
+ dev->active_link_user_pipe = pipe;
+ pr_debug("%s owns the tuner %s can share!\n",
+ dev->active_link_owner->name,
+ entity->name);
+ ret = 0;
+ goto end;
+ } else {
+ ret = -EBUSY;
+ goto end;
+ }
+ }
+
+ list_for_each_entry(link, &sink->links, list) {
+ /* Check sink, and source */
+ if (link->sink->entity == sink &&
+ link->source->entity == find_source) {
+ found_link = link;
+ break;
+ }
+ }
+
+ if (!found_link) {
+ ret = -ENODEV;
+ goto end;
+ }
+
+ /* activate link between source and sink and start pipeline */
+ source = found_link->source->entity;
+ ret = __media_entity_setup_link(found_link, MEDIA_LNK_FL_ENABLED);
+ if (ret) {
+ pr_err("Activate link from %s->%s. Error %d\n",
+ source->name, sink->name, ret);
+ goto end;
+ }
+
+ ret = __media_pipeline_start(entity->pads, pipe);
+ if (ret) {
+ pr_err("Start Pipeline: %s->%s Error %d\n",
+ source->name, entity->name, ret);
+ ret = __media_entity_setup_link(found_link, 0);
+ if (ret)
+ pr_err("Deactivate link Error %d\n", ret);
+ goto end;
+ }
+
+ /* save link state to allow audio and video share the link
+ * and not disable the link while the other is using it.
+ * active_link_owner is used to deactivate the link.
+ */
+ dev->active_link = found_link;
+ dev->active_link_owner = entity;
+ dev->active_source = source;
+ dev->active_sink = sink;
+
+ pr_info("Enabled Source: %s->%s->%s Ret %d\n",
+ dev->active_source->name, dev->active_sink->name,
+ dev->active_link_owner->name, ret);
+end:
+ pr_debug("%s end: ent:%s fnc:%d ret %d\n",
+ __func__, entity->name, entity->function, ret);
+ return ret;
+}
+
+/* Callers should hold graph_mutex */
+static void au0828_disable_source(struct media_entity *entity)
+{
+ int ret = 0;
+ struct media_device *mdev = entity->graph_obj.mdev;
+ struct au0828_dev *dev;
+
+ if (!mdev)
+ return;
+
+ dev = mdev->source_priv;
+
+ if (!dev->active_link)
+ return;
+
+ /* link is active - stop pipeline from source
+ * (tuner/s-video/Composite) to the entity
+ * When DVB/s-video/Composite owns tuner, it won't be in
+ * shared state.
+ */
+ if (dev->active_link->sink->entity == dev->active_sink &&
+ dev->active_link->source->entity == dev->active_source) {
+ /*
+ * Prevent video from deactivating link when audio
+ * has active pipeline and vice versa. In addition
+ * handle the case when more than one video/vbi
+ * application is sharing the link.
+ */
+ bool owner_is_audio = false;
+
+ if (dev->active_link_owner->function ==
+ MEDIA_ENT_F_AUDIO_CAPTURE)
+ owner_is_audio = true;
+
+ if (dev->active_link_shared) {
+ pr_debug("Shared link owner %s user %s %d\n",
+ dev->active_link_owner->name,
+ entity->name, dev->users);
+
+ /* Handle video device users > 1
+ * When audio owns the shared link with
+ * more than one video users, avoid
+ * disabling the source and/or switching
+ * the owner until the last disable_source
+ * call from video _close(). Use dev->users to
+ * determine when to switch/disable.
+ */
+ if (dev->active_link_owner != entity) {
+ /* video device has users > 1 */
+ if (owner_is_audio && dev->users > 1)
+ return;
+
+ dev->active_link_user = NULL;
+ dev->active_link_user_pipe = NULL;
+ dev->active_link_shared = false;
+ return;
+ }
+
+ /* video owns the link and has users > 1 */
+ if (!owner_is_audio && dev->users > 1)
+ return;
+
+ /* stop pipeline */
+ __media_pipeline_stop(dev->active_link_owner->pads);
+ pr_debug("Pipeline stop for %s\n",
+ dev->active_link_owner->name);
+
+ ret = __media_pipeline_start(
+ dev->active_link_user->pads,
+ dev->active_link_user_pipe);
+ if (ret) {
+ pr_err("Start Pipeline: %s->%s %d\n",
+ dev->active_source->name,
+ dev->active_link_user->name,
+ ret);
+ goto deactivate_link;
+ }
+ /* link user is now the owner */
+ dev->active_link_owner = dev->active_link_user;
+ dev->active_link_user = NULL;
+ dev->active_link_user_pipe = NULL;
+ dev->active_link_shared = false;
+
+ pr_debug("Pipeline started for %s\n",
+ dev->active_link_owner->name);
+ return;
+ } else if (!owner_is_audio && dev->users > 1)
+ /* video/vbi owns the link and has users > 1 */
+ return;
+
+ if (dev->active_link_owner != entity)
+ return;
+
+ /* stop pipeline */
+ __media_pipeline_stop(dev->active_link_owner->pads);
+ pr_debug("Pipeline stop for %s\n",
+ dev->active_link_owner->name);
+
+deactivate_link:
+ ret = __media_entity_setup_link(dev->active_link, 0);
+ if (ret)
+ pr_err("Deactivate link Error %d\n", ret);
+
+ pr_info("Disabled Source: %s->%s->%s Ret %d\n",
+ dev->active_source->name, dev->active_sink->name,
+ dev->active_link_owner->name, ret);
+
+ dev->active_link = NULL;
+ dev->active_link_owner = NULL;
+ dev->active_source = NULL;
+ dev->active_sink = NULL;
+ dev->active_link_shared = false;
+ dev->active_link_user = NULL;
+ }
+}
+#endif
+
+static int au0828_media_device_register(struct au0828_dev *dev,
+ struct usb_device *udev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+ int ret;
+ struct media_entity *entity, *demod = NULL;
+ struct media_link *link;
+
+ if (!dev->media_dev)
+ return 0;
+
+ if (!media_devnode_is_registered(dev->media_dev->devnode)) {
+
+ /* register media device */
+ ret = media_device_register(dev->media_dev);
+ if (ret) {
+ media_device_delete(dev->media_dev, KBUILD_MODNAME,
+ THIS_MODULE);
+ dev->media_dev = NULL;
+ dev_err(&udev->dev,
+ "Media Device Register Error: %d\n", ret);
+ return ret;
+ }
+ } else {
+ /*
+ * Call au0828_media_graph_notify() to connect
+ * audio graph to our graph. In this case, audio
+ * driver registered the device and there is no
+ * entity_notify to be called when new entities
+ * are added. Invoke it now.
+ */
+ au0828_media_graph_notify(NULL, (void *) dev);
+ }
+
+ /*
+ * Find tuner, decoder and demod.
+ *
+ * The tuner and decoder should be cached, as they'll be used by
+ * au0828_enable_source.
+ *
+ * It also needs to disable the link between tuner and
+ * decoder/demod, to avoid disable step when tuner is requested
+ * by video or audio. Note that this step can't be done until dvb
+ * graph is created during dvb register.
+ */
+ media_device_for_each_entity(entity, dev->media_dev) {
+ switch (entity->function) {
+ case MEDIA_ENT_F_TUNER:
+ dev->tuner = entity;
+ break;
+ case MEDIA_ENT_F_ATV_DECODER:
+ dev->decoder = entity;
+ break;
+ case MEDIA_ENT_F_DTV_DEMOD:
+ demod = entity;
+ break;
+ }
+ }
+
+ /* Disable link between tuner->demod and/or tuner->decoder */
+ if (dev->tuner) {
+ list_for_each_entry(link, &dev->tuner->links, list) {
+ if (demod && link->sink->entity == demod)
+ media_entity_setup_link(link, 0);
+ if (dev->decoder && link->sink->entity == dev->decoder)
+ media_entity_setup_link(link, 0);
+ }
+ }
+
+ /* register entity_notify callback */
+ dev->entity_notify.notify_data = (void *) dev;
+ dev->entity_notify.notify = (void *) au0828_media_graph_notify;
+ ret = media_device_register_entity_notify(dev->media_dev,
+ &dev->entity_notify);
+ if (ret) {
+ dev_err(&udev->dev,
+ "Media Device register entity_notify Error: %d\n",
+ ret);
+ return ret;
+ }
+ /* set enable_source */
+ mutex_lock(&dev->media_dev->graph_mutex);
+ dev->media_dev->source_priv = (void *) dev;
+ dev->media_dev->enable_source = au0828_enable_source;
+ dev->media_dev->disable_source = au0828_disable_source;
+ mutex_unlock(&dev->media_dev->graph_mutex);
+#endif
+ return 0;
+}
+
+static int au0828_usb_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ int ifnum;
+ int retval = 0;
+
+ struct au0828_dev *dev;
+ struct usb_device *usbdev = interface_to_usbdev(interface);
+
+ ifnum = interface->altsetting->desc.bInterfaceNumber;
+
+ if (ifnum != 0)
+ return -ENODEV;
+
+ dprintk(1, "%s() vendor id 0x%x device id 0x%x ifnum:%d\n", __func__,
+ le16_to_cpu(usbdev->descriptor.idVendor),
+ le16_to_cpu(usbdev->descriptor.idProduct),
+ ifnum);
+
+ /*
+ * Make sure we have 480 Mbps of bandwidth, otherwise things like
+ * video stream wouldn't likely work, since 12 Mbps is generally
+ * not enough even for most Digital TV streams.
+ */
+ if (usbdev->speed != USB_SPEED_HIGH && disable_usb_speed_check == 0) {
+ pr_err("au0828: Device initialization failed.\n");
+ pr_err("au0828: Device must be connected to a high-speed USB 2.0 port.\n");
+ return -ENODEV;
+ }
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ pr_err("%s() Unable to allocate memory\n", __func__);
+ return -ENOMEM;
+ }
+
+ mutex_init(&dev->lock);
+ mutex_lock(&dev->lock);
+ mutex_init(&dev->mutex);
+ mutex_init(&dev->dvb.lock);
+ dev->usbdev = usbdev;
+ dev->boardnr = id->driver_info;
+ dev->board = au0828_boards[dev->boardnr];
+
+ /* Initialize the media controller */
+ retval = au0828_media_device_init(dev, usbdev);
+ if (retval) {
+ pr_err("%s() au0828_media_device_init failed\n",
+ __func__);
+ mutex_unlock(&dev->lock);
+ kfree(dev);
+ return retval;
+ }
+
+ retval = au0828_v4l2_device_register(interface, dev);
+ if (retval) {
+ au0828_usb_v4l2_media_release(dev);
+ mutex_unlock(&dev->lock);
+ kfree(dev);
+ return retval;
+ }
+
+ /* Power Up the bridge */
+ au0828_write(dev, REG_600, 1 << 4);
+
+ /* Bring up the GPIO's and supporting devices */
+ au0828_gpio_setup(dev);
+
+ /* I2C */
+ au0828_i2c_register(dev);
+
+ /* Setup */
+ au0828_card_setup(dev);
+
+ /*
+ * Store the pointer to the au0828_dev so it can be accessed in
+ * au0828_usb_disconnect
+ */
+ usb_set_intfdata(interface, dev);
+
+ /* Analog TV */
+ retval = au0828_analog_register(dev, interface);
+ if (retval) {
+ pr_err("%s() au0828_analog_register failed to register on V4L2\n",
+ __func__);
+ mutex_unlock(&dev->lock);
+ goto done;
+ }
+
+ /* Digital TV */
+ retval = au0828_dvb_register(dev);
+ if (retval)
+ pr_err("%s() au0828_dvb_register failed\n",
+ __func__);
+
+ /* Remote controller */
+ au0828_rc_register(dev);
+
+ pr_info("Registered device AU0828 [%s]\n",
+ dev->board.name == NULL ? "Unset" : dev->board.name);
+
+ mutex_unlock(&dev->lock);
+
+ retval = au0828_media_device_register(dev, usbdev);
+
+done:
+ if (retval < 0)
+ au0828_usb_disconnect(interface);
+
+ return retval;
+}
+
+static int au0828_suspend(struct usb_interface *interface,
+ pm_message_t message)
+{
+ struct au0828_dev *dev = usb_get_intfdata(interface);
+
+ if (!dev)
+ return 0;
+
+ pr_info("Suspend\n");
+
+ au0828_rc_suspend(dev);
+ au0828_v4l2_suspend(dev);
+ au0828_dvb_suspend(dev);
+
+ /* FIXME: should suspend also ATV/DTV */
+
+ return 0;
+}
+
+static int au0828_resume(struct usb_interface *interface)
+{
+ struct au0828_dev *dev = usb_get_intfdata(interface);
+ if (!dev)
+ return 0;
+
+ pr_info("Resume\n");
+
+ /* Power Up the bridge */
+ au0828_write(dev, REG_600, 1 << 4);
+
+ /* Bring up the GPIO's and supporting devices */
+ au0828_gpio_setup(dev);
+
+ au0828_rc_resume(dev);
+ au0828_v4l2_resume(dev);
+ au0828_dvb_resume(dev);
+
+ /* FIXME: should resume also ATV/DTV */
+
+ return 0;
+}
+
+static struct usb_driver au0828_usb_driver = {
+ .name = KBUILD_MODNAME,
+ .probe = au0828_usb_probe,
+ .disconnect = au0828_usb_disconnect,
+ .id_table = au0828_usb_id_table,
+ .suspend = au0828_suspend,
+ .resume = au0828_resume,
+ .reset_resume = au0828_resume,
+};
+
+static int __init au0828_init(void)
+{
+ int ret;
+
+ if (au0828_debug & 1)
+ pr_info("%s() Debugging is enabled\n", __func__);
+
+ if (au0828_debug & 2)
+ pr_info("%s() USB Debugging is enabled\n", __func__);
+
+ if (au0828_debug & 4)
+ pr_info("%s() I2C Debugging is enabled\n", __func__);
+
+ if (au0828_debug & 8)
+ pr_info("%s() Bridge Debugging is enabled\n",
+ __func__);
+
+ if (au0828_debug & 16)
+ pr_info("%s() IR Debugging is enabled\n",
+ __func__);
+
+ pr_info("au0828 driver loaded\n");
+
+ ret = usb_register(&au0828_usb_driver);
+ if (ret)
+ pr_err("usb_register failed, error = %d\n", ret);
+
+ return ret;
+}
+
+static void __exit au0828_exit(void)
+{
+ usb_deregister(&au0828_usb_driver);
+}
+
+module_init(au0828_init);
+module_exit(au0828_exit);
+
+MODULE_DESCRIPTION("Driver for Auvitek AU0828 based products");
+MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.0.3");
diff --git a/drivers/media/usb/au0828/au0828-dvb.c b/drivers/media/usb/au0828/au0828-dvb.c
new file mode 100644
index 000000000..2a8691a0d
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-dvb.c
@@ -0,0 +1,684 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for the Auvitek USB bridge
+ *
+ * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ */
+
+#include "au0828.h"
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <media/v4l2-common.h>
+#include <media/tuner.h>
+
+#include "au8522.h"
+#include "xc5000.h"
+#include "mxl5007t.h"
+#include "tda18271.h"
+
+static int preallocate_big_buffers;
+module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
+MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+#define _AU0828_BULKPIPE 0x83
+#define _BULKPIPESIZE 0xe522
+
+static u8 hauppauge_hvr950q_led_states[] = {
+ 0x00, /* off */
+ 0x02, /* yellow */
+ 0x04, /* green */
+};
+
+static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
+ .gpio_output = 0x00e0,
+ .gpio_output_enable = 0x6006,
+ .gpio_output_disable = 0x0660,
+
+ .gpio_leds = 0x00e2,
+ .led_states = hauppauge_hvr950q_led_states,
+ .num_led_states = sizeof(hauppauge_hvr950q_led_states),
+
+ .vsb8_strong = 20 /* dB */ * 10,
+ .qam64_strong = 25 /* dB */ * 10,
+ .qam256_strong = 32 /* dB */ * 10,
+};
+
+static struct au8522_config hauppauge_hvr950q_config = {
+ .demod_address = 0x8e >> 1,
+ .status_mode = AU8522_DEMODLOCKING,
+ .qam_if = AU8522_IF_6MHZ,
+ .vsb_if = AU8522_IF_6MHZ,
+ .led_cfg = &hauppauge_hvr950q_led_cfg,
+};
+
+static struct au8522_config fusionhdtv7usb_config = {
+ .demod_address = 0x8e >> 1,
+ .status_mode = AU8522_DEMODLOCKING,
+ .qam_if = AU8522_IF_6MHZ,
+ .vsb_if = AU8522_IF_6MHZ,
+};
+
+static struct au8522_config hauppauge_woodbury_config = {
+ .demod_address = 0x8e >> 1,
+ .status_mode = AU8522_DEMODLOCKING,
+ .qam_if = AU8522_IF_4MHZ,
+ .vsb_if = AU8522_IF_3_25MHZ,
+};
+
+static struct xc5000_config hauppauge_xc5000a_config = {
+ .i2c_address = 0x61,
+ .if_khz = 6000,
+ .chip_id = XC5000A,
+ .output_amp = 0x8f,
+};
+
+static struct xc5000_config hauppauge_xc5000c_config = {
+ .i2c_address = 0x61,
+ .if_khz = 6000,
+ .chip_id = XC5000C,
+ .output_amp = 0x8f,
+};
+
+static struct mxl5007t_config mxl5007t_hvr950q_config = {
+ .xtal_freq_hz = MxL_XTAL_24_MHZ,
+ .if_freq_hz = MxL_IF_6_MHZ,
+};
+
+static struct tda18271_config hauppauge_woodbury_tunerconfig = {
+ .gate = TDA18271_GATE_DIGITAL,
+};
+
+static void au0828_restart_dvb_streaming(struct work_struct *work);
+
+static void au0828_bulk_timeout(struct timer_list *t)
+{
+ struct au0828_dev *dev = from_timer(dev, t, bulk_timeout);
+
+ dprintk(1, "%s called\n", __func__);
+ dev->bulk_timeout_running = 0;
+ schedule_work(&dev->restart_streaming);
+}
+
+/*-------------------------------------------------------------------*/
+static void urb_completion(struct urb *purb)
+{
+ struct au0828_dev *dev = purb->context;
+ int ptype = usb_pipetype(purb->pipe);
+ unsigned char *ptr;
+
+ dprintk(2, "%s: %d\n", __func__, purb->actual_length);
+
+ if (!dev) {
+ dprintk(2, "%s: no dev!\n", __func__);
+ return;
+ }
+
+ if (!dev->urb_streaming) {
+ dprintk(2, "%s: not streaming!\n", __func__);
+ return;
+ }
+
+ if (ptype != PIPE_BULK) {
+ pr_err("%s: Unsupported URB type %d\n",
+ __func__, ptype);
+ return;
+ }
+
+ /* See if the stream is corrupted (to work around a hardware
+ bug where the stream gets misaligned */
+ ptr = purb->transfer_buffer;
+ if (purb->actual_length > 0 && ptr[0] != 0x47) {
+ dprintk(1, "Need to restart streaming %02x len=%d!\n",
+ ptr[0], purb->actual_length);
+ schedule_work(&dev->restart_streaming);
+ return;
+ } else if (dev->bulk_timeout_running == 1) {
+ /* The URB handler has fired, so cancel timer which would
+ * restart endpoint if we hadn't
+ */
+ dprintk(1, "%s cancelling bulk timeout\n", __func__);
+ dev->bulk_timeout_running = 0;
+ del_timer(&dev->bulk_timeout);
+ }
+
+ /* Feed the transport payload into the kernel demux */
+ dvb_dmx_swfilter_packets(&dev->dvb.demux,
+ purb->transfer_buffer, purb->actual_length / 188);
+
+ /* Clean the buffer before we requeue */
+ memset(purb->transfer_buffer, 0, URB_BUFSIZE);
+
+ /* Requeue URB */
+ usb_submit_urb(purb, GFP_ATOMIC);
+}
+
+static int stop_urb_transfer(struct au0828_dev *dev)
+{
+ int i;
+
+ dprintk(2, "%s()\n", __func__);
+
+ if (!dev->urb_streaming)
+ return 0;
+
+ if (dev->bulk_timeout_running == 1) {
+ dev->bulk_timeout_running = 0;
+ del_timer(&dev->bulk_timeout);
+ }
+
+ dev->urb_streaming = false;
+ for (i = 0; i < URB_COUNT; i++) {
+ if (dev->urbs[i]) {
+ usb_kill_urb(dev->urbs[i]);
+ if (!preallocate_big_buffers)
+ kfree(dev->urbs[i]->transfer_buffer);
+
+ usb_free_urb(dev->urbs[i]);
+ }
+ }
+
+ return 0;
+}
+
+static int start_urb_transfer(struct au0828_dev *dev)
+{
+ struct urb *purb;
+ int i, ret;
+
+ dprintk(2, "%s()\n", __func__);
+
+ if (dev->urb_streaming) {
+ dprintk(2, "%s: bulk xfer already running!\n", __func__);
+ return 0;
+ }
+
+ for (i = 0; i < URB_COUNT; i++) {
+
+ dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->urbs[i])
+ return -ENOMEM;
+
+ purb = dev->urbs[i];
+
+ if (preallocate_big_buffers)
+ purb->transfer_buffer = dev->dig_transfer_buffer[i];
+ else
+ purb->transfer_buffer = kzalloc(URB_BUFSIZE,
+ GFP_KERNEL);
+
+ if (!purb->transfer_buffer) {
+ usb_free_urb(purb);
+ dev->urbs[i] = NULL;
+ ret = -ENOMEM;
+ pr_err("%s: failed big buffer allocation, err = %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ purb->status = -EINPROGRESS;
+ usb_fill_bulk_urb(purb,
+ dev->usbdev,
+ usb_rcvbulkpipe(dev->usbdev,
+ _AU0828_BULKPIPE),
+ purb->transfer_buffer,
+ URB_BUFSIZE,
+ urb_completion,
+ dev);
+
+ }
+
+ for (i = 0; i < URB_COUNT; i++) {
+ ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
+ if (ret != 0) {
+ stop_urb_transfer(dev);
+ pr_err("%s: failed urb submission, err = %d\n",
+ __func__, ret);
+ return ret;
+ }
+ }
+
+ dev->urb_streaming = true;
+
+ /* If we don't valid data within 1 second, restart stream */
+ mod_timer(&dev->bulk_timeout, jiffies + (HZ));
+ dev->bulk_timeout_running = 1;
+
+ return 0;
+}
+
+static void au0828_start_transport(struct au0828_dev *dev)
+{
+ au0828_write(dev, 0x608, 0x90);
+ au0828_write(dev, 0x609, 0x72);
+ au0828_write(dev, 0x60a, 0x71);
+ au0828_write(dev, 0x60b, 0x01);
+
+}
+
+static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
+{
+ if (full_stop) {
+ au0828_write(dev, 0x608, 0x00);
+ au0828_write(dev, 0x609, 0x00);
+ au0828_write(dev, 0x60a, 0x00);
+ }
+ au0828_write(dev, 0x60b, 0x00);
+}
+
+static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
+{
+ struct dvb_demux *demux = feed->demux;
+ struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
+ struct au0828_dvb *dvb = &dev->dvb;
+ int ret = 0;
+
+ dprintk(1, "%s()\n", __func__);
+
+ if (!demux->dmx.frontend)
+ return -EINVAL;
+
+ if (dvb->frontend) {
+ mutex_lock(&dvb->lock);
+ dvb->start_count++;
+ dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
+ dvb->start_count, dvb->stop_count);
+ if (dvb->feeding++ == 0) {
+ /* Start transport */
+ au0828_start_transport(dev);
+ ret = start_urb_transfer(dev);
+ if (ret < 0) {
+ au0828_stop_transport(dev, 0);
+ dvb->feeding--; /* We ran out of memory... */
+ }
+ }
+ mutex_unlock(&dvb->lock);
+ }
+
+ return ret;
+}
+
+static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
+{
+ struct dvb_demux *demux = feed->demux;
+ struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
+ struct au0828_dvb *dvb = &dev->dvb;
+ int ret = 0;
+
+ dprintk(1, "%s()\n", __func__);
+
+ if (dvb->frontend) {
+ cancel_work_sync(&dev->restart_streaming);
+
+ mutex_lock(&dvb->lock);
+ dvb->stop_count++;
+ dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
+ dvb->start_count, dvb->stop_count);
+ if (dvb->feeding > 0) {
+ dvb->feeding--;
+ if (dvb->feeding == 0) {
+ /* Stop transport */
+ ret = stop_urb_transfer(dev);
+ au0828_stop_transport(dev, 0);
+ }
+ }
+ mutex_unlock(&dvb->lock);
+ }
+
+ return ret;
+}
+
+static void au0828_restart_dvb_streaming(struct work_struct *work)
+{
+ struct au0828_dev *dev = container_of(work, struct au0828_dev,
+ restart_streaming);
+ struct au0828_dvb *dvb = &dev->dvb;
+
+ if (!dev->urb_streaming)
+ return;
+
+ dprintk(1, "Restarting streaming...!\n");
+
+ mutex_lock(&dvb->lock);
+
+ /* Stop transport */
+ stop_urb_transfer(dev);
+ au0828_stop_transport(dev, 1);
+
+ /* Start transport */
+ au0828_start_transport(dev);
+ start_urb_transfer(dev);
+
+ mutex_unlock(&dvb->lock);
+}
+
+static int au0828_set_frontend(struct dvb_frontend *fe)
+{
+ struct au0828_dev *dev = fe->dvb->priv;
+ struct au0828_dvb *dvb = &dev->dvb;
+ int ret, was_streaming;
+
+ mutex_lock(&dvb->lock);
+ was_streaming = dev->urb_streaming;
+ if (was_streaming) {
+ au0828_stop_transport(dev, 1);
+
+ /*
+ * We can't hold a mutex here, as the restart_streaming
+ * kthread may also hold it.
+ */
+ mutex_unlock(&dvb->lock);
+ cancel_work_sync(&dev->restart_streaming);
+ mutex_lock(&dvb->lock);
+
+ stop_urb_transfer(dev);
+ }
+ mutex_unlock(&dvb->lock);
+
+ ret = dvb->set_frontend(fe);
+
+ if (was_streaming) {
+ mutex_lock(&dvb->lock);
+ au0828_start_transport(dev);
+ start_urb_transfer(dev);
+ mutex_unlock(&dvb->lock);
+ }
+
+ return ret;
+}
+
+static int dvb_register(struct au0828_dev *dev)
+{
+ struct au0828_dvb *dvb = &dev->dvb;
+ int result;
+
+ dprintk(1, "%s()\n", __func__);
+
+ if (preallocate_big_buffers) {
+ int i;
+ for (i = 0; i < URB_COUNT; i++) {
+ dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
+ GFP_KERNEL);
+
+ if (!dev->dig_transfer_buffer[i]) {
+ result = -ENOMEM;
+
+ pr_err("failed buffer allocation (errno = %d)\n",
+ result);
+ goto fail_adapter;
+ }
+ }
+ }
+
+ INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
+
+ /* register adapter */
+ result = dvb_register_adapter(&dvb->adapter,
+ KBUILD_MODNAME, THIS_MODULE,
+ &dev->usbdev->dev, adapter_nr);
+ if (result < 0) {
+ pr_err("dvb_register_adapter failed (errno = %d)\n",
+ result);
+ goto fail_adapter;
+ }
+
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+ dvb->adapter.mdev = dev->media_dev;
+#endif
+
+ dvb->adapter.priv = dev;
+
+ /* register frontend */
+ result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
+ if (result < 0) {
+ pr_err("dvb_register_frontend failed (errno = %d)\n",
+ result);
+ goto fail_frontend;
+ }
+
+ /* Hook dvb frontend */
+ dvb->set_frontend = dvb->frontend->ops.set_frontend;
+ dvb->frontend->ops.set_frontend = au0828_set_frontend;
+
+ /* register demux stuff */
+ dvb->demux.dmx.capabilities =
+ DMX_TS_FILTERING | DMX_SECTION_FILTERING |
+ DMX_MEMORY_BASED_FILTERING;
+ dvb->demux.priv = dev;
+ dvb->demux.filternum = 256;
+ dvb->demux.feednum = 256;
+ dvb->demux.start_feed = au0828_dvb_start_feed;
+ dvb->demux.stop_feed = au0828_dvb_stop_feed;
+ result = dvb_dmx_init(&dvb->demux);
+ if (result < 0) {
+ pr_err("dvb_dmx_init failed (errno = %d)\n", result);
+ goto fail_dmx;
+ }
+
+ dvb->dmxdev.filternum = 256;
+ dvb->dmxdev.demux = &dvb->demux.dmx;
+ dvb->dmxdev.capabilities = 0;
+ result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
+ if (result < 0) {
+ pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
+ goto fail_dmxdev;
+ }
+
+ dvb->fe_hw.source = DMX_FRONTEND_0;
+ result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+ if (result < 0) {
+ pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
+ result);
+ goto fail_fe_hw;
+ }
+
+ dvb->fe_mem.source = DMX_MEMORY_FE;
+ result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+ if (result < 0) {
+ pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
+ result);
+ goto fail_fe_mem;
+ }
+
+ result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+ if (result < 0) {
+ pr_err("connect_frontend failed (errno = %d)\n", result);
+ goto fail_fe_conn;
+ }
+
+ /* register network adapter */
+ dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
+
+ dvb->start_count = 0;
+ dvb->stop_count = 0;
+
+ result = dvb_create_media_graph(&dvb->adapter, false);
+ if (result < 0)
+ goto fail_create_graph;
+
+ return 0;
+
+fail_create_graph:
+ dvb_net_release(&dvb->net);
+fail_fe_conn:
+ dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+fail_fe_mem:
+ dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+fail_fe_hw:
+ dvb_dmxdev_release(&dvb->dmxdev);
+fail_dmxdev:
+ dvb_dmx_release(&dvb->demux);
+fail_dmx:
+ dvb_unregister_frontend(dvb->frontend);
+fail_frontend:
+ dvb_frontend_detach(dvb->frontend);
+ dvb_unregister_adapter(&dvb->adapter);
+fail_adapter:
+
+ if (preallocate_big_buffers) {
+ int i;
+ for (i = 0; i < URB_COUNT; i++)
+ kfree(dev->dig_transfer_buffer[i]);
+ }
+
+ return result;
+}
+
+void au0828_dvb_unregister(struct au0828_dev *dev)
+{
+ struct au0828_dvb *dvb = &dev->dvb;
+
+ dprintk(1, "%s()\n", __func__);
+
+ if (dvb->frontend == NULL)
+ return;
+
+ cancel_work_sync(&dev->restart_streaming);
+
+ dvb_net_release(&dvb->net);
+ dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+ dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+ dvb_dmxdev_release(&dvb->dmxdev);
+ dvb_dmx_release(&dvb->demux);
+ dvb_unregister_frontend(dvb->frontend);
+ dvb_frontend_detach(dvb->frontend);
+ dvb_unregister_adapter(&dvb->adapter);
+
+ if (preallocate_big_buffers) {
+ int i;
+ for (i = 0; i < URB_COUNT; i++)
+ kfree(dev->dig_transfer_buffer[i]);
+ }
+ dvb->frontend = NULL;
+}
+
+/* All the DVB attach calls go here, this function gets modified
+ * for each new card. No other function in this file needs
+ * to change.
+ */
+int au0828_dvb_register(struct au0828_dev *dev)
+{
+ struct au0828_dvb *dvb = &dev->dvb;
+ int ret;
+
+ dprintk(1, "%s()\n", __func__);
+
+ /* init frontend */
+ switch (dev->boardnr) {
+ case AU0828_BOARD_HAUPPAUGE_HVR850:
+ case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+ dvb->frontend = dvb_attach(au8522_attach,
+ &hauppauge_hvr950q_config,
+ &dev->i2c_adap);
+ if (dvb->frontend != NULL)
+ switch (dev->board.tuner_type) {
+ default:
+ case TUNER_XC5000:
+ dvb_attach(xc5000_attach, dvb->frontend,
+ &dev->i2c_adap,
+ &hauppauge_xc5000a_config);
+ break;
+ case TUNER_XC5000C:
+ dvb_attach(xc5000_attach, dvb->frontend,
+ &dev->i2c_adap,
+ &hauppauge_xc5000c_config);
+ break;
+ }
+ break;
+ case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
+ dvb->frontend = dvb_attach(au8522_attach,
+ &hauppauge_hvr950q_config,
+ &dev->i2c_adap);
+ if (dvb->frontend != NULL)
+ dvb_attach(mxl5007t_attach, dvb->frontend,
+ &dev->i2c_adap, 0x60,
+ &mxl5007t_hvr950q_config);
+ break;
+ case AU0828_BOARD_HAUPPAUGE_WOODBURY:
+ dvb->frontend = dvb_attach(au8522_attach,
+ &hauppauge_woodbury_config,
+ &dev->i2c_adap);
+ if (dvb->frontend != NULL)
+ dvb_attach(tda18271_attach, dvb->frontend,
+ 0x60, &dev->i2c_adap,
+ &hauppauge_woodbury_tunerconfig);
+ break;
+ case AU0828_BOARD_DVICO_FUSIONHDTV7:
+ dvb->frontend = dvb_attach(au8522_attach,
+ &fusionhdtv7usb_config,
+ &dev->i2c_adap);
+ if (dvb->frontend != NULL) {
+ dvb_attach(xc5000_attach, dvb->frontend,
+ &dev->i2c_adap,
+ &hauppauge_xc5000a_config);
+ }
+ break;
+ default:
+ pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
+ break;
+ }
+ if (NULL == dvb->frontend) {
+ pr_err("%s() Frontend initialization failed\n",
+ __func__);
+ return -1;
+ }
+ /* define general-purpose callback pointer */
+ dvb->frontend->callback = au0828_tuner_callback;
+
+ /* register everything */
+ ret = dvb_register(dev);
+ if (ret < 0) {
+ if (dvb->frontend->ops.release)
+ dvb->frontend->ops.release(dvb->frontend);
+ dvb->frontend = NULL;
+ return ret;
+ }
+
+ timer_setup(&dev->bulk_timeout, au0828_bulk_timeout, 0);
+
+ return 0;
+}
+
+void au0828_dvb_suspend(struct au0828_dev *dev)
+{
+ struct au0828_dvb *dvb = &dev->dvb;
+ int rc;
+
+ if (dvb->frontend) {
+ if (dev->urb_streaming) {
+ cancel_work_sync(&dev->restart_streaming);
+ /* Stop transport */
+ mutex_lock(&dvb->lock);
+ stop_urb_transfer(dev);
+ au0828_stop_transport(dev, 1);
+ mutex_unlock(&dvb->lock);
+ dev->need_urb_start = true;
+ }
+ /* suspend frontend - does tuner and fe to sleep */
+ rc = dvb_frontend_suspend(dvb->frontend);
+ pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
+ }
+}
+
+void au0828_dvb_resume(struct au0828_dev *dev)
+{
+ struct au0828_dvb *dvb = &dev->dvb;
+ int rc;
+
+ if (dvb->frontend) {
+ /* resume frontend - does fe and tuner init */
+ rc = dvb_frontend_resume(dvb->frontend);
+ pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
+ if (dev->need_urb_start) {
+ /* Start transport */
+ mutex_lock(&dvb->lock);
+ au0828_start_transport(dev);
+ start_urb_transfer(dev);
+ mutex_unlock(&dvb->lock);
+ }
+ }
+}
diff --git a/drivers/media/usb/au0828/au0828-i2c.c b/drivers/media/usb/au0828/au0828-i2c.c
new file mode 100644
index 000000000..749f90d73
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-i2c.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for the Auvitek AU0828 USB bridge
+ *
+ * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ */
+
+#include "au0828.h"
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include "media/tuner.h"
+#include <media/v4l2-common.h>
+
+static int i2c_scan;
+module_param(i2c_scan, int, 0444);
+MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time");
+
+#define I2C_WAIT_DELAY 25
+#define I2C_WAIT_RETRY 1000
+
+static inline int i2c_slave_did_read_ack(struct i2c_adapter *i2c_adap)
+{
+ struct au0828_dev *dev = i2c_adap->algo_data;
+ return au0828_read(dev, AU0828_I2C_STATUS_201) &
+ AU0828_I2C_STATUS_NO_READ_ACK ? 0 : 1;
+}
+
+static int i2c_wait_read_ack(struct i2c_adapter *i2c_adap)
+{
+ int count;
+
+ for (count = 0; count < I2C_WAIT_RETRY; count++) {
+ if (!i2c_slave_did_read_ack(i2c_adap))
+ break;
+ udelay(I2C_WAIT_DELAY);
+ }
+
+ if (I2C_WAIT_RETRY == count)
+ return 0;
+
+ return 1;
+}
+
+static inline int i2c_is_read_busy(struct i2c_adapter *i2c_adap)
+{
+ struct au0828_dev *dev = i2c_adap->algo_data;
+ return au0828_read(dev, AU0828_I2C_STATUS_201) &
+ AU0828_I2C_STATUS_READ_DONE ? 0 : 1;
+}
+
+static int i2c_wait_read_done(struct i2c_adapter *i2c_adap)
+{
+ int count;
+
+ for (count = 0; count < I2C_WAIT_RETRY; count++) {
+ if (!i2c_is_read_busy(i2c_adap))
+ break;
+ udelay(I2C_WAIT_DELAY);
+ }
+
+ if (I2C_WAIT_RETRY == count)
+ return 0;
+
+ return 1;
+}
+
+static inline int i2c_is_write_done(struct i2c_adapter *i2c_adap)
+{
+ struct au0828_dev *dev = i2c_adap->algo_data;
+ return au0828_read(dev, AU0828_I2C_STATUS_201) &
+ AU0828_I2C_STATUS_WRITE_DONE ? 1 : 0;
+}
+
+static int i2c_wait_write_done(struct i2c_adapter *i2c_adap)
+{
+ int count;
+
+ for (count = 0; count < I2C_WAIT_RETRY; count++) {
+ if (i2c_is_write_done(i2c_adap))
+ break;
+ udelay(I2C_WAIT_DELAY);
+ }
+
+ if (I2C_WAIT_RETRY == count)
+ return 0;
+
+ return 1;
+}
+
+static inline int i2c_is_busy(struct i2c_adapter *i2c_adap)
+{
+ struct au0828_dev *dev = i2c_adap->algo_data;
+ return au0828_read(dev, AU0828_I2C_STATUS_201) &
+ AU0828_I2C_STATUS_BUSY ? 1 : 0;
+}
+
+static int i2c_wait_done(struct i2c_adapter *i2c_adap)
+{
+ int count;
+
+ for (count = 0; count < I2C_WAIT_RETRY; count++) {
+ if (!i2c_is_busy(i2c_adap))
+ break;
+ udelay(I2C_WAIT_DELAY);
+ }
+
+ if (I2C_WAIT_RETRY == count)
+ return 0;
+
+ return 1;
+}
+
+/* FIXME: Implement join handling correctly */
+static int i2c_sendbytes(struct i2c_adapter *i2c_adap,
+ const struct i2c_msg *msg, int joined_rlen)
+{
+ int i, strobe = 0;
+ struct au0828_dev *dev = i2c_adap->algo_data;
+ u8 i2c_speed = dev->board.i2c_clk_divider;
+
+ dprintk(4, "%s()\n", __func__);
+
+ au0828_write(dev, AU0828_I2C_MULTIBYTE_MODE_2FF, 0x01);
+
+ if (((dev->board.tuner_type == TUNER_XC5000) ||
+ (dev->board.tuner_type == TUNER_XC5000C)) &&
+ (dev->board.tuner_addr == msg->addr)) {
+ /*
+ * Due to I2C clock stretch, we need to use a lower speed
+ * on xc5000 for commands. However, firmware transfer can
+ * speed up to 400 KHz.
+ */
+ if (msg->len == 64)
+ i2c_speed = AU0828_I2C_CLK_250KHZ;
+ else
+ i2c_speed = AU0828_I2C_CLK_20KHZ;
+ }
+ /* Set the I2C clock */
+ au0828_write(dev, AU0828_I2C_CLK_DIVIDER_202, i2c_speed);
+
+ /* Hardware needs 8 bit addresses */
+ au0828_write(dev, AU0828_I2C_DEST_ADDR_203, msg->addr << 1);
+
+ dprintk(4, "SEND: %02x\n", msg->addr);
+
+ /* Deal with i2c_scan */
+ if (msg->len == 0) {
+ /* The analog tuner detection code makes use of the SMBUS_QUICK
+ message (which involves a zero length i2c write). To avoid
+ checking the status register when we didn't strobe out any
+ actual bytes to the bus, just do a read check. This is
+ consistent with how I saw i2c device checking done in the
+ USB trace of the Windows driver */
+ au0828_write(dev, AU0828_I2C_TRIGGER_200,
+ AU0828_I2C_TRIGGER_READ);
+
+ if (!i2c_wait_done(i2c_adap))
+ return -EIO;
+
+ if (i2c_wait_read_ack(i2c_adap))
+ return -EIO;
+
+ return 0;
+ }
+
+ for (i = 0; i < msg->len;) {
+
+ dprintk(4, " %02x\n", msg->buf[i]);
+
+ au0828_write(dev, AU0828_I2C_WRITE_FIFO_205, msg->buf[i]);
+
+ strobe++;
+ i++;
+
+ if ((strobe >= 4) || (i >= msg->len)) {
+
+ /* Strobe the byte into the bus */
+ if (i < msg->len)
+ au0828_write(dev, AU0828_I2C_TRIGGER_200,
+ AU0828_I2C_TRIGGER_WRITE |
+ AU0828_I2C_TRIGGER_HOLD);
+ else
+ au0828_write(dev, AU0828_I2C_TRIGGER_200,
+ AU0828_I2C_TRIGGER_WRITE);
+
+ /* Reset strobe trigger */
+ strobe = 0;
+
+ if (!i2c_wait_write_done(i2c_adap))
+ return -EIO;
+
+ }
+
+ }
+ if (!i2c_wait_done(i2c_adap))
+ return -EIO;
+
+ dprintk(4, "\n");
+
+ return msg->len;
+}
+
+/* FIXME: Implement join handling correctly */
+static int i2c_readbytes(struct i2c_adapter *i2c_adap,
+ const struct i2c_msg *msg, int joined)
+{
+ struct au0828_dev *dev = i2c_adap->algo_data;
+ u8 i2c_speed = dev->board.i2c_clk_divider;
+ int i;
+
+ dprintk(4, "%s()\n", __func__);
+
+ au0828_write(dev, AU0828_I2C_MULTIBYTE_MODE_2FF, 0x01);
+
+ /*
+ * Due to xc5000c clock stretch, we cannot use full speed at
+ * readings from xc5000, as otherwise they'll fail.
+ */
+ if (((dev->board.tuner_type == TUNER_XC5000) ||
+ (dev->board.tuner_type == TUNER_XC5000C)) &&
+ (dev->board.tuner_addr == msg->addr))
+ i2c_speed = AU0828_I2C_CLK_20KHZ;
+
+ /* Set the I2C clock */
+ au0828_write(dev, AU0828_I2C_CLK_DIVIDER_202, i2c_speed);
+
+ /* Hardware needs 8 bit addresses */
+ au0828_write(dev, AU0828_I2C_DEST_ADDR_203, msg->addr << 1);
+
+ dprintk(4, " RECV:\n");
+
+ /* Deal with i2c_scan */
+ if (msg->len == 0) {
+ au0828_write(dev, AU0828_I2C_TRIGGER_200,
+ AU0828_I2C_TRIGGER_READ);
+
+ if (i2c_wait_read_ack(i2c_adap))
+ return -EIO;
+ return 0;
+ }
+
+ for (i = 0; i < msg->len;) {
+
+ i++;
+
+ if (i < msg->len)
+ au0828_write(dev, AU0828_I2C_TRIGGER_200,
+ AU0828_I2C_TRIGGER_READ |
+ AU0828_I2C_TRIGGER_HOLD);
+ else
+ au0828_write(dev, AU0828_I2C_TRIGGER_200,
+ AU0828_I2C_TRIGGER_READ);
+
+ if (!i2c_wait_read_done(i2c_adap))
+ return -EIO;
+
+ msg->buf[i-1] = au0828_read(dev, AU0828_I2C_READ_FIFO_209) &
+ 0xff;
+
+ dprintk(4, " %02x\n", msg->buf[i-1]);
+ }
+ if (!i2c_wait_done(i2c_adap))
+ return -EIO;
+
+ dprintk(4, "\n");
+
+ return msg->len;
+}
+
+static int i2c_xfer(struct i2c_adapter *i2c_adap,
+ struct i2c_msg *msgs, int num)
+{
+ int i, retval = 0;
+
+ dprintk(4, "%s(num = %d)\n", __func__, num);
+
+ for (i = 0; i < num; i++) {
+ dprintk(4, "%s(num = %d) addr = 0x%02x len = 0x%x\n",
+ __func__, num, msgs[i].addr, msgs[i].len);
+ if (msgs[i].flags & I2C_M_RD) {
+ /* read */
+ retval = i2c_readbytes(i2c_adap, &msgs[i], 0);
+ } else if (i + 1 < num && (msgs[i + 1].flags & I2C_M_RD) &&
+ msgs[i].addr == msgs[i + 1].addr) {
+ /* write then read from same address */
+ retval = i2c_sendbytes(i2c_adap, &msgs[i],
+ msgs[i + 1].len);
+ if (retval < 0)
+ goto err;
+ i++;
+ retval = i2c_readbytes(i2c_adap, &msgs[i], 1);
+ } else {
+ /* write */
+ retval = i2c_sendbytes(i2c_adap, &msgs[i], 0);
+ }
+ if (retval < 0)
+ goto err;
+ }
+ return num;
+
+err:
+ return retval;
+}
+
+static u32 au0828_functionality(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_I2C;
+}
+
+static const struct i2c_algorithm au0828_i2c_algo_template = {
+ .master_xfer = i2c_xfer,
+ .functionality = au0828_functionality,
+};
+
+/* ----------------------------------------------------------------------- */
+
+static const struct i2c_adapter au0828_i2c_adap_template = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ .algo = &au0828_i2c_algo_template,
+};
+
+static const struct i2c_client au0828_i2c_client_template = {
+ .name = "au0828 internal",
+};
+
+static char *i2c_devs[128] = {
+ [0x8e >> 1] = "au8522",
+ [0xa0 >> 1] = "eeprom",
+ [0xc2 >> 1] = "tuner/xc5000",
+};
+
+static void do_i2c_scan(char *name, struct i2c_client *c)
+{
+ unsigned char buf;
+ int i, rc;
+
+ for (i = 0; i < 128; i++) {
+ c->addr = i;
+ rc = i2c_master_recv(c, &buf, 0);
+ if (rc < 0)
+ continue;
+ pr_info("%s: i2c scan: found device @ 0x%x [%s]\n",
+ name, i << 1, i2c_devs[i] ? i2c_devs[i] : "???");
+ }
+}
+
+/* init + register i2c adapter */
+int au0828_i2c_register(struct au0828_dev *dev)
+{
+ dprintk(1, "%s()\n", __func__);
+
+ dev->i2c_adap = au0828_i2c_adap_template;
+ dev->i2c_algo = au0828_i2c_algo_template;
+ dev->i2c_client = au0828_i2c_client_template;
+
+ dev->i2c_adap.dev.parent = &dev->usbdev->dev;
+
+ strscpy(dev->i2c_adap.name, KBUILD_MODNAME,
+ sizeof(dev->i2c_adap.name));
+
+ dev->i2c_adap.algo = &dev->i2c_algo;
+ dev->i2c_adap.algo_data = dev;
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+ i2c_set_adapdata(&dev->i2c_adap, &dev->v4l2_dev);
+#else
+ i2c_set_adapdata(&dev->i2c_adap, dev);
+#endif
+ i2c_add_adapter(&dev->i2c_adap);
+
+ dev->i2c_client.adapter = &dev->i2c_adap;
+
+ if (0 == dev->i2c_rc) {
+ pr_info("i2c bus registered\n");
+ if (i2c_scan)
+ do_i2c_scan(KBUILD_MODNAME, &dev->i2c_client);
+ } else
+ pr_info("i2c bus register FAILED\n");
+
+ return dev->i2c_rc;
+}
+
+int au0828_i2c_unregister(struct au0828_dev *dev)
+{
+ i2c_del_adapter(&dev->i2c_adap);
+ return 0;
+}
+
diff --git a/drivers/media/usb/au0828/au0828-input.c b/drivers/media/usb/au0828/au0828-input.c
new file mode 100644
index 000000000..3d3368202
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-input.c
@@ -0,0 +1,398 @@
+// SPDX-License-Identifier: GPL-2.0+
+// handle au0828 IR remotes via linux kernel input layer.
+//
+// Copyright (c) 2014 Mauro Carvalho Chehab <mchehab@samsung.com>
+// Copyright (c) 2014 Samsung Electronics Co., Ltd.
+//
+// Based on em28xx-input.c.
+
+#include "au0828.h"
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <linux/slab.h>
+#include <media/rc-core.h>
+
+static int disable_ir;
+module_param(disable_ir, int, 0444);
+MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
+
+struct au0828_rc {
+ struct au0828_dev *dev;
+ struct rc_dev *rc;
+ char name[32];
+ char phys[32];
+
+ /* poll decoder */
+ int polling;
+ struct delayed_work work;
+
+ /* i2c slave address of external device (if used) */
+ u16 i2c_dev_addr;
+
+ int (*get_key_i2c)(struct au0828_rc *ir);
+};
+
+/*
+ * AU8522 has a builtin IR receiver. Add functions to get IR from it
+ */
+
+static int au8522_rc_write(struct au0828_rc *ir, u16 reg, u8 data)
+{
+ int rc;
+ char buf[] = { (reg >> 8) | 0x80, reg & 0xff, data };
+ struct i2c_msg msg = { .addr = ir->i2c_dev_addr, .flags = 0,
+ .buf = buf, .len = sizeof(buf) };
+
+ rc = i2c_transfer(ir->dev->i2c_client.adapter, &msg, 1);
+
+ if (rc < 0)
+ return rc;
+
+ return (rc == 1) ? 0 : -EIO;
+}
+
+static int au8522_rc_read(struct au0828_rc *ir, u16 reg, int val,
+ char *buf, int size)
+{
+ int rc;
+ char obuf[3];
+ struct i2c_msg msg[2] = { { .addr = ir->i2c_dev_addr, .flags = 0,
+ .buf = obuf, .len = 2 },
+ { .addr = ir->i2c_dev_addr, .flags = I2C_M_RD,
+ .buf = buf, .len = size } };
+
+ obuf[0] = 0x40 | reg >> 8;
+ obuf[1] = reg & 0xff;
+ if (val >= 0) {
+ obuf[2] = val;
+ msg[0].len++;
+ }
+
+ rc = i2c_transfer(ir->dev->i2c_client.adapter, msg, 2);
+
+ if (rc < 0)
+ return rc;
+
+ return (rc == 2) ? 0 : -EIO;
+}
+
+static int au8522_rc_andor(struct au0828_rc *ir, u16 reg, u8 mask, u8 value)
+{
+ int rc;
+ char buf, oldbuf;
+
+ rc = au8522_rc_read(ir, reg, -1, &buf, 1);
+ if (rc < 0)
+ return rc;
+
+ oldbuf = buf;
+ buf = (buf & ~mask) | (value & mask);
+
+ /* Nothing to do, just return */
+ if (buf == oldbuf)
+ return 0;
+
+ return au8522_rc_write(ir, reg, buf);
+}
+
+#define au8522_rc_set(ir, reg, bit) au8522_rc_andor(ir, (reg), (bit), (bit))
+#define au8522_rc_clear(ir, reg, bit) au8522_rc_andor(ir, (reg), (bit), 0)
+
+/* Remote Controller time units */
+
+#define AU8522_UNIT 200 /* us */
+#define NEC_START_SPACE (4500 / AU8522_UNIT)
+#define NEC_START_PULSE (563 * 16)
+#define RC5_START_SPACE (4 * AU8522_UNIT)
+#define RC5_START_PULSE 889
+
+static int au0828_get_key_au8522(struct au0828_rc *ir)
+{
+ unsigned char buf[40];
+ struct ir_raw_event rawir = {};
+ int i, j, rc;
+ int prv_bit, bit, width;
+ bool first = true;
+
+ /* do nothing if device is disconnected */
+ if (test_bit(DEV_DISCONNECTED, &ir->dev->dev_state))
+ return 0;
+
+ /* Check IR int */
+ rc = au8522_rc_read(ir, 0xe1, -1, buf, 1);
+ if (rc < 0 || !(buf[0] & (1 << 4))) {
+ /* Be sure that IR is enabled */
+ au8522_rc_set(ir, 0xe0, 1 << 4);
+ return 0;
+ }
+
+ /* Something arrived. Get the data */
+ rc = au8522_rc_read(ir, 0xe3, 0x11, buf, sizeof(buf));
+
+
+ if (rc < 0)
+ return rc;
+
+ /* Disable IR */
+ au8522_rc_clear(ir, 0xe0, 1 << 4);
+
+ /* Enable IR */
+ au8522_rc_set(ir, 0xe0, 1 << 4);
+
+ dprintk(16, "RC data received: %*ph\n", 40, buf);
+
+ prv_bit = (buf[0] >> 7) & 0x01;
+ width = 0;
+ for (i = 0; i < sizeof(buf); i++) {
+ for (j = 7; j >= 0; j--) {
+ bit = (buf[i] >> j) & 0x01;
+ if (bit == prv_bit) {
+ width++;
+ continue;
+ }
+
+ /*
+ * Fix an au8522 bug: the first pulse event
+ * is lost. So, we need to fake it, based on the
+ * protocol. That means that not all raw decoders
+ * will work, as we need to add a hack for each
+ * protocol, based on the first space.
+ * So, we only support RC5 and NEC.
+ */
+
+ if (first) {
+ first = false;
+
+ rawir.pulse = true;
+ if (width > NEC_START_SPACE - 2 &&
+ width < NEC_START_SPACE + 2) {
+ /* NEC protocol */
+ rawir.duration = NEC_START_PULSE;
+ dprintk(16, "Storing NEC start %s with duration %d",
+ rawir.pulse ? "pulse" : "space",
+ rawir.duration);
+ } else {
+ /* RC5 protocol */
+ rawir.duration = RC5_START_PULSE;
+ dprintk(16, "Storing RC5 start %s with duration %d",
+ rawir.pulse ? "pulse" : "space",
+ rawir.duration);
+ }
+ ir_raw_event_store(ir->rc, &rawir);
+ }
+
+ rawir.pulse = prv_bit ? false : true;
+ rawir.duration = AU8522_UNIT * width;
+ dprintk(16, "Storing %s with duration %d",
+ rawir.pulse ? "pulse" : "space",
+ rawir.duration);
+ ir_raw_event_store(ir->rc, &rawir);
+
+ width = 1;
+ prv_bit = bit;
+ }
+ }
+
+ rawir.pulse = prv_bit ? false : true;
+ rawir.duration = AU8522_UNIT * width;
+ dprintk(16, "Storing end %s with duration %d",
+ rawir.pulse ? "pulse" : "space",
+ rawir.duration);
+ ir_raw_event_store(ir->rc, &rawir);
+
+ ir_raw_event_handle(ir->rc);
+
+ return 1;
+}
+
+/*
+ * Generic IR code
+ */
+
+static void au0828_rc_work(struct work_struct *work)
+{
+ struct au0828_rc *ir = container_of(work, struct au0828_rc, work.work);
+ int rc;
+
+ rc = ir->get_key_i2c(ir);
+ if (rc < 0)
+ pr_info("Error while getting RC scancode\n");
+
+ schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
+}
+
+static int au0828_rc_start(struct rc_dev *rc)
+{
+ struct au0828_rc *ir = rc->priv;
+
+ INIT_DELAYED_WORK(&ir->work, au0828_rc_work);
+
+ /* Enable IR */
+ au8522_rc_set(ir, 0xe0, 1 << 4);
+
+ schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
+
+ return 0;
+}
+
+static void au0828_rc_stop(struct rc_dev *rc)
+{
+ struct au0828_rc *ir = rc->priv;
+
+ cancel_delayed_work_sync(&ir->work);
+
+ /* do nothing if device is disconnected */
+ if (!test_bit(DEV_DISCONNECTED, &ir->dev->dev_state)) {
+ /* Disable IR */
+ au8522_rc_clear(ir, 0xe0, 1 << 4);
+ }
+}
+
+static int au0828_probe_i2c_ir(struct au0828_dev *dev)
+{
+ int i = 0;
+ static const unsigned short addr_list[] = {
+ 0x47, I2C_CLIENT_END
+ };
+
+ while (addr_list[i] != I2C_CLIENT_END) {
+ if (i2c_probe_func_quick_read(dev->i2c_client.adapter,
+ addr_list[i]) == 1)
+ return addr_list[i];
+ i++;
+ }
+
+ return -ENODEV;
+}
+
+int au0828_rc_register(struct au0828_dev *dev)
+{
+ struct au0828_rc *ir;
+ struct rc_dev *rc;
+ int err = -ENOMEM;
+ u16 i2c_rc_dev_addr = 0;
+
+ if (!dev->board.has_ir_i2c || disable_ir)
+ return 0;
+
+ i2c_rc_dev_addr = au0828_probe_i2c_ir(dev);
+ if (!i2c_rc_dev_addr)
+ return -ENODEV;
+
+ ir = kzalloc(sizeof(*ir), GFP_KERNEL);
+ rc = rc_allocate_device(RC_DRIVER_IR_RAW);
+ if (!ir || !rc)
+ goto error;
+
+ /* record handles to ourself */
+ ir->dev = dev;
+ dev->ir = ir;
+ ir->rc = rc;
+
+ rc->priv = ir;
+ rc->open = au0828_rc_start;
+ rc->close = au0828_rc_stop;
+
+ if (dev->board.has_ir_i2c) { /* external i2c device */
+ switch (dev->boardnr) {
+ case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+ rc->map_name = RC_MAP_HAUPPAUGE;
+ ir->get_key_i2c = au0828_get_key_au8522;
+ break;
+ default:
+ err = -ENODEV;
+ goto error;
+ }
+
+ ir->i2c_dev_addr = i2c_rc_dev_addr;
+ }
+
+ /* This is how often we ask the chip for IR information */
+ ir->polling = 100; /* ms */
+
+ /* init input device */
+ snprintf(ir->name, sizeof(ir->name), "au0828 IR (%s)",
+ dev->board.name);
+
+ usb_make_path(dev->usbdev, ir->phys, sizeof(ir->phys));
+ strlcat(ir->phys, "/input0", sizeof(ir->phys));
+
+ rc->device_name = ir->name;
+ rc->input_phys = ir->phys;
+ rc->input_id.bustype = BUS_USB;
+ rc->input_id.version = 1;
+ rc->input_id.vendor = le16_to_cpu(dev->usbdev->descriptor.idVendor);
+ rc->input_id.product = le16_to_cpu(dev->usbdev->descriptor.idProduct);
+ rc->dev.parent = &dev->usbdev->dev;
+ rc->driver_name = "au0828-input";
+ rc->allowed_protocols = RC_PROTO_BIT_NEC | RC_PROTO_BIT_NECX |
+ RC_PROTO_BIT_NEC32 | RC_PROTO_BIT_RC5;
+
+ /* all done */
+ err = rc_register_device(rc);
+ if (err)
+ goto error;
+
+ pr_info("Remote controller %s initialized\n", ir->name);
+
+ return 0;
+
+error:
+ dev->ir = NULL;
+ rc_free_device(rc);
+ kfree(ir);
+ return err;
+}
+
+void au0828_rc_unregister(struct au0828_dev *dev)
+{
+ struct au0828_rc *ir = dev->ir;
+
+ /* skip detach on non attached boards */
+ if (!ir)
+ return;
+
+ rc_unregister_device(ir->rc);
+
+ /* done */
+ kfree(ir);
+ dev->ir = NULL;
+}
+
+int au0828_rc_suspend(struct au0828_dev *dev)
+{
+ struct au0828_rc *ir = dev->ir;
+
+ if (!ir)
+ return 0;
+
+ pr_info("Stopping RC\n");
+
+ cancel_delayed_work_sync(&ir->work);
+
+ /* Disable IR */
+ au8522_rc_clear(ir, 0xe0, 1 << 4);
+
+ return 0;
+}
+
+int au0828_rc_resume(struct au0828_dev *dev)
+{
+ struct au0828_rc *ir = dev->ir;
+
+ if (!ir)
+ return 0;
+
+ pr_info("Restarting RC\n");
+
+ /* Enable IR */
+ au8522_rc_set(ir, 0xe0, 1 << 4);
+
+ schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
+
+ return 0;
+}
diff --git a/drivers/media/usb/au0828/au0828-reg.h b/drivers/media/usb/au0828/au0828-reg.h
new file mode 100644
index 000000000..5e3582223
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-reg.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Driver for the Auvitek USB bridge
+ *
+ * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ */
+
+/* We'll start to rename these registers once we have a better
+ * understanding of their meaning.
+ */
+#define REG_000 0x000
+#define REG_001 0x001
+#define REG_002 0x002
+#define REG_003 0x003
+
+#define AU0828_SENSORCTRL_100 0x100
+#define AU0828_SENSORCTRL_VBI_103 0x103
+
+/* I2C registers */
+#define AU0828_I2C_TRIGGER_200 0x200
+#define AU0828_I2C_STATUS_201 0x201
+#define AU0828_I2C_CLK_DIVIDER_202 0x202
+#define AU0828_I2C_DEST_ADDR_203 0x203
+#define AU0828_I2C_WRITE_FIFO_205 0x205
+#define AU0828_I2C_READ_FIFO_209 0x209
+#define AU0828_I2C_MULTIBYTE_MODE_2FF 0x2ff
+
+/* Audio registers */
+#define AU0828_AUDIOCTRL_50C 0x50C
+
+#define REG_600 0x600
+
+/*********************************************************************/
+/* Here are constants for values associated with the above registers */
+
+/* I2C Trigger (Reg 0x200) */
+#define AU0828_I2C_TRIGGER_WRITE 0x01
+#define AU0828_I2C_TRIGGER_READ 0x20
+#define AU0828_I2C_TRIGGER_HOLD 0x40
+
+/* I2C Status (Reg 0x201) */
+#define AU0828_I2C_STATUS_READ_DONE 0x01
+#define AU0828_I2C_STATUS_NO_READ_ACK 0x02
+#define AU0828_I2C_STATUS_WRITE_DONE 0x04
+#define AU0828_I2C_STATUS_NO_WRITE_ACK 0x08
+#define AU0828_I2C_STATUS_BUSY 0x10
+
+/* I2C Clock Divider (Reg 0x202) */
+#define AU0828_I2C_CLK_250KHZ 0x07
+#define AU0828_I2C_CLK_100KHZ 0x14
+#define AU0828_I2C_CLK_30KHZ 0x40
+#define AU0828_I2C_CLK_20KHZ 0x60
diff --git a/drivers/media/usb/au0828/au0828-vbi.c b/drivers/media/usb/au0828/au0828-vbi.c
new file mode 100644
index 000000000..97f5e8733
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-vbi.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ au0828-vbi.c - VBI driver for au0828
+
+ Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
+
+ This work was sponsored by GetWellNetwork Inc.
+
+ */
+
+#include "au0828.h"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+
+/* ------------------------------------------------------------------ */
+
+static int vbi_queue_setup(struct vb2_queue *vq,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], struct device *alloc_devs[])
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vq);
+ unsigned long size = dev->vbi_width * dev->vbi_height * 2;
+
+ if (*nplanes)
+ return sizes[0] < size ? -EINVAL : 0;
+ *nplanes = 1;
+ sizes[0] = size;
+ return 0;
+}
+
+static int vbi_buffer_prepare(struct vb2_buffer *vb)
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ unsigned long size;
+
+ size = dev->vbi_width * dev->vbi_height * 2;
+
+ if (vb2_plane_size(vb, 0) < size) {
+ pr_err("%s data will not fit into plane (%lu < %lu)\n",
+ __func__, vb2_plane_size(vb, 0), size);
+ return -EINVAL;
+ }
+ vb2_set_plane_payload(vb, 0, size);
+
+ return 0;
+}
+
+static void
+vbi_buffer_queue(struct vb2_buffer *vb)
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct au0828_buffer *buf =
+ container_of(vbuf, struct au0828_buffer, vb);
+ struct au0828_dmaqueue *vbiq = &dev->vbiq;
+ unsigned long flags = 0;
+
+ buf->mem = vb2_plane_vaddr(vb, 0);
+ buf->length = vb2_plane_size(vb, 0);
+
+ spin_lock_irqsave(&dev->slock, flags);
+ list_add_tail(&buf->list, &vbiq->active);
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+const struct vb2_ops au0828_vbi_qops = {
+ .queue_setup = vbi_queue_setup,
+ .buf_prepare = vbi_buffer_prepare,
+ .buf_queue = vbi_buffer_queue,
+ .start_streaming = au0828_start_analog_streaming,
+ .stop_streaming = au0828_stop_vbi_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
new file mode 100644
index 000000000..eb303e94c
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828-video.c
@@ -0,0 +1,2044 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Auvitek AU0828 USB Bridge (Analog video support)
+ *
+ * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org>
+ * Copyright (C) 2005-2008 Auvitek International, Ltd.
+ */
+
+/* Developer Notes:
+ *
+ * The hardware scaler supported is unimplemented
+ * AC97 audio support is unimplemented (only i2s audio mode)
+ *
+ */
+
+#include "au0828.h"
+#include "au8522.h"
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
+#include <media/tuner.h>
+#include "au0828-reg.h"
+
+static DEFINE_MUTEX(au0828_sysfs_lock);
+
+/* ------------------------------------------------------------------
+ Videobuf operations
+ ------------------------------------------------------------------*/
+
+static unsigned int isoc_debug;
+module_param(isoc_debug, int, 0644);
+MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
+
+#define au0828_isocdbg(fmt, arg...) \
+do {\
+ if (isoc_debug) { \
+ pr_info("au0828 %s :"fmt, \
+ __func__ , ##arg); \
+ } \
+ } while (0)
+
+static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val)
+{
+ if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl)
+ dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val);
+}
+
+static inline void print_err_status(struct au0828_dev *dev,
+ int packet, int status)
+{
+ char *errmsg = "Unknown";
+
+ switch (status) {
+ case -ENOENT:
+ errmsg = "unlinked synchronously";
+ break;
+ case -ECONNRESET:
+ errmsg = "unlinked asynchronously";
+ break;
+ case -ENOSR:
+ errmsg = "Buffer error (overrun)";
+ break;
+ case -EPIPE:
+ errmsg = "Stalled (device not responding)";
+ break;
+ case -EOVERFLOW:
+ errmsg = "Babble (bad cable?)";
+ break;
+ case -EPROTO:
+ errmsg = "Bit-stuff error (bad cable?)";
+ break;
+ case -EILSEQ:
+ errmsg = "CRC/Timeout (could be anything)";
+ break;
+ case -ETIME:
+ errmsg = "Device does not respond";
+ break;
+ }
+ if (packet < 0) {
+ au0828_isocdbg("URB status %d [%s].\n", status, errmsg);
+ } else {
+ au0828_isocdbg("URB packet %d, status %d [%s].\n",
+ packet, status, errmsg);
+ }
+}
+
+static int check_dev(struct au0828_dev *dev)
+{
+ if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) {
+ pr_info("v4l2 ioctl: device not present\n");
+ return -ENODEV;
+ }
+
+ if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) {
+ pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n");
+ return -EIO;
+ }
+ return 0;
+}
+
+/*
+ * IRQ callback, called by URB callback
+ */
+static void au0828_irq_callback(struct urb *urb)
+{
+ struct au0828_dmaqueue *dma_q = urb->context;
+ struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
+ unsigned long flags = 0;
+ int i;
+
+ switch (urb->status) {
+ case 0: /* success */
+ case -ETIMEDOUT: /* NAK */
+ break;
+ case -ECONNRESET: /* kill */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ au0828_isocdbg("au0828_irq_callback called: status kill\n");
+ return;
+ default: /* unknown error */
+ au0828_isocdbg("urb completion error %d.\n", urb->status);
+ break;
+ }
+
+ /* Copy data from URB */
+ spin_lock_irqsave(&dev->slock, flags);
+ dev->isoc_ctl.isoc_copy(dev, urb);
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ /* Reset urb buffers */
+ for (i = 0; i < urb->number_of_packets; i++) {
+ urb->iso_frame_desc[i].status = 0;
+ urb->iso_frame_desc[i].actual_length = 0;
+ }
+ urb->status = 0;
+
+ urb->status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (urb->status) {
+ au0828_isocdbg("urb resubmit failed (error=%i)\n",
+ urb->status);
+ }
+ dev->stream_state = STREAM_ON;
+}
+
+/*
+ * Stop and Deallocate URBs
+ */
+static void au0828_uninit_isoc(struct au0828_dev *dev)
+{
+ struct urb *urb;
+ int i;
+
+ au0828_isocdbg("au0828: called au0828_uninit_isoc\n");
+
+ dev->isoc_ctl.nfields = -1;
+ for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
+ urb = dev->isoc_ctl.urb[i];
+ if (urb) {
+ if (!irqs_disabled())
+ usb_kill_urb(urb);
+ else
+ usb_unlink_urb(urb);
+
+ if (dev->isoc_ctl.transfer_buffer[i]) {
+ usb_free_coherent(dev->usbdev,
+ urb->transfer_buffer_length,
+ dev->isoc_ctl.transfer_buffer[i],
+ urb->transfer_dma);
+ }
+ usb_free_urb(urb);
+ dev->isoc_ctl.urb[i] = NULL;
+ }
+ dev->isoc_ctl.transfer_buffer[i] = NULL;
+ }
+
+ kfree(dev->isoc_ctl.urb);
+ kfree(dev->isoc_ctl.transfer_buffer);
+
+ dev->isoc_ctl.urb = NULL;
+ dev->isoc_ctl.transfer_buffer = NULL;
+ dev->isoc_ctl.num_bufs = 0;
+
+ dev->stream_state = STREAM_OFF;
+}
+
+/*
+ * Allocate URBs and start IRQ
+ */
+static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
+ int num_bufs, int max_pkt_size,
+ int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb))
+{
+ struct au0828_dmaqueue *dma_q = &dev->vidq;
+ int i;
+ int sb_size, pipe;
+ struct urb *urb;
+ int j, k;
+ int rc;
+
+ au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
+
+ dev->isoc_ctl.isoc_copy = isoc_copy;
+ dev->isoc_ctl.num_bufs = num_bufs;
+
+ dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *), GFP_KERNEL);
+ if (!dev->isoc_ctl.urb) {
+ au0828_isocdbg("cannot alloc memory for usb buffers\n");
+ return -ENOMEM;
+ }
+
+ dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *),
+ GFP_KERNEL);
+ if (!dev->isoc_ctl.transfer_buffer) {
+ au0828_isocdbg("cannot allocate memory for usb transfer\n");
+ kfree(dev->isoc_ctl.urb);
+ return -ENOMEM;
+ }
+
+ dev->isoc_ctl.max_pkt_size = max_pkt_size;
+ dev->isoc_ctl.buf = NULL;
+
+ sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
+
+ /* allocate urbs and transfer buffers */
+ for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
+ urb = usb_alloc_urb(max_packets, GFP_KERNEL);
+ if (!urb) {
+ au0828_isocdbg("cannot allocate URB\n");
+ au0828_uninit_isoc(dev);
+ return -ENOMEM;
+ }
+ dev->isoc_ctl.urb[i] = urb;
+
+ dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
+ sb_size, GFP_KERNEL, &urb->transfer_dma);
+ if (!dev->isoc_ctl.transfer_buffer[i]) {
+ au0828_isocdbg("cannot allocate transfer buffer\n");
+ au0828_uninit_isoc(dev);
+ return -ENOMEM;
+ }
+ memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size);
+
+ pipe = usb_rcvisocpipe(dev->usbdev,
+ dev->isoc_in_endpointaddr);
+
+ usb_fill_int_urb(urb, dev->usbdev, pipe,
+ dev->isoc_ctl.transfer_buffer[i], sb_size,
+ au0828_irq_callback, dma_q, 1);
+
+ urb->number_of_packets = max_packets;
+ urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
+
+ k = 0;
+ for (j = 0; j < max_packets; j++) {
+ urb->iso_frame_desc[j].offset = k;
+ urb->iso_frame_desc[j].length =
+ dev->isoc_ctl.max_pkt_size;
+ k += dev->isoc_ctl.max_pkt_size;
+ }
+ }
+
+ /* submit urbs and enables IRQ */
+ for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
+ rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
+ if (rc) {
+ au0828_isocdbg("submit of urb %i failed (error=%i)\n",
+ i, rc);
+ au0828_uninit_isoc(dev);
+ return rc;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Announces that a buffer were filled and request the next
+ */
+static inline void buffer_filled(struct au0828_dev *dev,
+ struct au0828_dmaqueue *dma_q,
+ struct au0828_buffer *buf)
+{
+ struct vb2_v4l2_buffer *vb = &buf->vb;
+ struct vb2_queue *q = vb->vb2_buf.vb2_queue;
+
+ /* Advice that buffer was filled */
+ au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
+
+ if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ vb->sequence = dev->frame_count++;
+ else
+ vb->sequence = dev->vbi_frame_count++;
+
+ vb->field = V4L2_FIELD_INTERLACED;
+ vb->vb2_buf.timestamp = ktime_get_ns();
+ vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
+}
+
+/*
+ * Identify the buffer header type and properly handles
+ */
+static void au0828_copy_video(struct au0828_dev *dev,
+ struct au0828_dmaqueue *dma_q,
+ struct au0828_buffer *buf,
+ unsigned char *p,
+ unsigned char *outp, unsigned long len)
+{
+ void *fieldstart, *startwrite, *startread;
+ int linesdone, currlinedone, offset, lencopy, remain;
+ int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
+
+ if (len == 0)
+ return;
+
+ if (dma_q->pos + len > buf->length)
+ len = buf->length - dma_q->pos;
+
+ startread = p;
+ remain = len;
+
+ /* Interlaces frame */
+ if (buf->top_field)
+ fieldstart = outp;
+ else
+ fieldstart = outp + bytesperline;
+
+ linesdone = dma_q->pos / bytesperline;
+ currlinedone = dma_q->pos % bytesperline;
+ offset = linesdone * bytesperline * 2 + currlinedone;
+ startwrite = fieldstart + offset;
+ lencopy = bytesperline - currlinedone;
+ lencopy = lencopy > remain ? remain : lencopy;
+
+ if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
+ au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
+ ((char *)startwrite + lencopy) -
+ ((char *)outp + buf->length));
+ remain = (char *)outp + buf->length - (char *)startwrite;
+ lencopy = remain;
+ }
+ if (lencopy <= 0)
+ return;
+ memcpy(startwrite, startread, lencopy);
+
+ remain -= lencopy;
+
+ while (remain > 0) {
+ startwrite += lencopy + bytesperline;
+ startread += lencopy;
+ if (bytesperline > remain)
+ lencopy = remain;
+ else
+ lencopy = bytesperline;
+
+ if ((char *)startwrite + lencopy > (char *)outp +
+ buf->length) {
+ au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
+ ((char *)startwrite + lencopy) -
+ ((char *)outp + buf->length));
+ lencopy = remain = (char *)outp + buf->length -
+ (char *)startwrite;
+ }
+ if (lencopy <= 0)
+ break;
+
+ memcpy(startwrite, startread, lencopy);
+
+ remain -= lencopy;
+ }
+
+ if (offset > 1440) {
+ /* We have enough data to check for greenscreen */
+ if (outp[0] < 0x60 && outp[1440] < 0x60)
+ dev->greenscreen_detected = 1;
+ }
+
+ dma_q->pos += len;
+}
+
+/*
+ * generic routine to get the next available buffer
+ */
+static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
+ struct au0828_buffer **buf)
+{
+ struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
+
+ if (list_empty(&dma_q->active)) {
+ au0828_isocdbg("No active queue to serve\n");
+ dev->isoc_ctl.buf = NULL;
+ *buf = NULL;
+ return;
+ }
+
+ /* Get the next buffer */
+ *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
+ /* Cleans up buffer - Useful for testing for frame/URB loss */
+ list_del(&(*buf)->list);
+ dma_q->pos = 0;
+ (*buf)->vb_buf = (*buf)->mem;
+ dev->isoc_ctl.buf = *buf;
+
+ return;
+}
+
+static void au0828_copy_vbi(struct au0828_dev *dev,
+ struct au0828_dmaqueue *dma_q,
+ struct au0828_buffer *buf,
+ unsigned char *p,
+ unsigned char *outp, unsigned long len)
+{
+ unsigned char *startwrite, *startread;
+ int bytesperline;
+ int i, j = 0;
+
+ if (dev == NULL) {
+ au0828_isocdbg("dev is null\n");
+ return;
+ }
+
+ if (dma_q == NULL) {
+ au0828_isocdbg("dma_q is null\n");
+ return;
+ }
+ if (buf == NULL)
+ return;
+ if (p == NULL) {
+ au0828_isocdbg("p is null\n");
+ return;
+ }
+ if (outp == NULL) {
+ au0828_isocdbg("outp is null\n");
+ return;
+ }
+
+ bytesperline = dev->vbi_width;
+
+ if (dma_q->pos + len > buf->length)
+ len = buf->length - dma_q->pos;
+
+ startread = p;
+ startwrite = outp + (dma_q->pos / 2);
+
+ /* Make sure the bottom field populates the second half of the frame */
+ if (buf->top_field == 0)
+ startwrite += bytesperline * dev->vbi_height;
+
+ for (i = 0; i < len; i += 2)
+ startwrite[j++] = startread[i+1];
+
+ dma_q->pos += len;
+}
+
+
+/*
+ * generic routine to get the next available VBI buffer
+ */
+static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
+ struct au0828_buffer **buf)
+{
+ struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
+
+ if (list_empty(&dma_q->active)) {
+ au0828_isocdbg("No active queue to serve\n");
+ dev->isoc_ctl.vbi_buf = NULL;
+ *buf = NULL;
+ return;
+ }
+
+ /* Get the next buffer */
+ *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
+ /* Cleans up buffer - Useful for testing for frame/URB loss */
+ list_del(&(*buf)->list);
+ dma_q->pos = 0;
+ (*buf)->vb_buf = (*buf)->mem;
+ dev->isoc_ctl.vbi_buf = *buf;
+ return;
+}
+
+/*
+ * Controls the isoc copy of each urb packet
+ */
+static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
+{
+ struct au0828_buffer *buf;
+ struct au0828_buffer *vbi_buf;
+ struct au0828_dmaqueue *dma_q = urb->context;
+ struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq;
+ unsigned char *outp = NULL;
+ unsigned char *vbioutp = NULL;
+ int i, len = 0, rc = 1;
+ unsigned char *p;
+ unsigned char fbyte;
+ unsigned int vbi_field_size;
+ unsigned int remain, lencopy;
+
+ if (!dev)
+ return 0;
+
+ if (test_bit(DEV_DISCONNECTED, &dev->dev_state) ||
+ test_bit(DEV_MISCONFIGURED, &dev->dev_state))
+ return 0;
+
+ if (urb->status < 0) {
+ print_err_status(dev, -1, urb->status);
+ if (urb->status == -ENOENT)
+ return 0;
+ }
+
+ buf = dev->isoc_ctl.buf;
+ if (buf != NULL)
+ outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+
+ vbi_buf = dev->isoc_ctl.vbi_buf;
+ if (vbi_buf != NULL)
+ vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
+
+ for (i = 0; i < urb->number_of_packets; i++) {
+ int status = urb->iso_frame_desc[i].status;
+
+ if (status < 0) {
+ print_err_status(dev, i, status);
+ if (urb->iso_frame_desc[i].status != -EPROTO)
+ continue;
+ }
+
+ if (urb->iso_frame_desc[i].actual_length <= 0)
+ continue;
+
+ if (urb->iso_frame_desc[i].actual_length >
+ dev->max_pkt_size) {
+ au0828_isocdbg("packet bigger than packet size");
+ continue;
+ }
+
+ p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
+ fbyte = p[0];
+ len = urb->iso_frame_desc[i].actual_length - 4;
+ p += 4;
+
+ if (fbyte & 0x80) {
+ len -= 4;
+ p += 4;
+ au0828_isocdbg("Video frame %s\n",
+ (fbyte & 0x40) ? "odd" : "even");
+ if (fbyte & 0x40) {
+ /* VBI */
+ if (vbi_buf != NULL)
+ buffer_filled(dev, vbi_dma_q, vbi_buf);
+ vbi_get_next_buf(vbi_dma_q, &vbi_buf);
+ if (vbi_buf == NULL)
+ vbioutp = NULL;
+ else
+ vbioutp = vb2_plane_vaddr(
+ &vbi_buf->vb.vb2_buf, 0);
+
+ /* Video */
+ if (buf != NULL)
+ buffer_filled(dev, dma_q, buf);
+ get_next_buf(dma_q, &buf);
+ if (buf == NULL)
+ outp = NULL;
+ else
+ outp = vb2_plane_vaddr(
+ &buf->vb.vb2_buf, 0);
+
+ /* As long as isoc traffic is arriving, keep
+ resetting the timer */
+ if (dev->vid_timeout_running)
+ mod_timer(&dev->vid_timeout,
+ jiffies + (HZ / 10));
+ if (dev->vbi_timeout_running)
+ mod_timer(&dev->vbi_timeout,
+ jiffies + (HZ / 10));
+ }
+
+ if (buf != NULL) {
+ if (fbyte & 0x40)
+ buf->top_field = 1;
+ else
+ buf->top_field = 0;
+ }
+
+ if (vbi_buf != NULL) {
+ if (fbyte & 0x40)
+ vbi_buf->top_field = 1;
+ else
+ vbi_buf->top_field = 0;
+ }
+
+ dev->vbi_read = 0;
+ vbi_dma_q->pos = 0;
+ dma_q->pos = 0;
+ }
+
+ vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
+ if (dev->vbi_read < vbi_field_size) {
+ remain = vbi_field_size - dev->vbi_read;
+ if (len < remain)
+ lencopy = len;
+ else
+ lencopy = remain;
+
+ if (vbi_buf != NULL)
+ au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
+ vbioutp, len);
+
+ len -= lencopy;
+ p += lencopy;
+ dev->vbi_read += lencopy;
+ }
+
+ if (dev->vbi_read >= vbi_field_size && buf != NULL)
+ au0828_copy_video(dev, dma_q, buf, p, outp, len);
+ }
+ return rc;
+}
+
+void au0828_usb_v4l2_media_release(struct au0828_dev *dev)
+{
+#ifdef CONFIG_MEDIA_CONTROLLER
+ int i;
+
+ for (i = 0; i < AU0828_MAX_INPUT; i++) {
+ if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
+ return;
+ media_device_unregister_entity(&dev->input_ent[i]);
+ }
+#endif
+}
+
+static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
+{
+ struct au0828_dev *dev =
+ container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
+
+ v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
+ v4l2_device_unregister(&dev->v4l2_dev);
+ au0828_usb_v4l2_media_release(dev);
+ au0828_usb_release(dev);
+}
+
+int au0828_v4l2_device_register(struct usb_interface *interface,
+ struct au0828_dev *dev)
+{
+ int retval;
+
+ if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
+ return 0;
+
+ /* Create the v4l2_device */
+#ifdef CONFIG_MEDIA_CONTROLLER
+ dev->v4l2_dev.mdev = dev->media_dev;
+#endif
+ retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
+ if (retval) {
+ pr_err("%s() v4l2_device_register failed\n",
+ __func__);
+ return retval;
+ }
+
+ dev->v4l2_dev.release = au0828_usb_v4l2_release;
+
+ /* This control handler will inherit the controls from au8522 */
+ retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
+ if (retval) {
+ pr_err("%s() v4l2_ctrl_handler_init failed\n",
+ __func__);
+ return retval;
+ }
+ dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
+
+ return 0;
+}
+
+static int queue_setup(struct vb2_queue *vq,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], struct device *alloc_devs[])
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vq);
+ unsigned long size = dev->height * dev->bytesperline;
+
+ if (*nplanes)
+ return sizes[0] < size ? -EINVAL : 0;
+ *nplanes = 1;
+ sizes[0] = size;
+ return 0;
+}
+
+static int
+buffer_prepare(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct au0828_buffer *buf = container_of(vbuf,
+ struct au0828_buffer, vb);
+ struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+ buf->length = dev->height * dev->bytesperline;
+
+ if (vb2_plane_size(vb, 0) < buf->length) {
+ pr_err("%s data will not fit into plane (%lu < %lu)\n",
+ __func__, vb2_plane_size(vb, 0), buf->length);
+ return -EINVAL;
+ }
+ vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
+ return 0;
+}
+
+static void
+buffer_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct au0828_buffer *buf = container_of(vbuf,
+ struct au0828_buffer,
+ vb);
+ struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct au0828_dmaqueue *vidq = &dev->vidq;
+ unsigned long flags = 0;
+
+ buf->mem = vb2_plane_vaddr(vb, 0);
+ buf->length = vb2_plane_size(vb, 0);
+
+ spin_lock_irqsave(&dev->slock, flags);
+ list_add_tail(&buf->list, &vidq->active);
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+static int au0828_i2s_init(struct au0828_dev *dev)
+{
+ /* Enable i2s mode */
+ au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
+ return 0;
+}
+
+/*
+ * Auvitek au0828 analog stream enable
+ */
+static int au0828_analog_stream_enable(struct au0828_dev *d)
+{
+ struct usb_interface *iface;
+ int ret, h, w;
+
+ dprintk(1, "au0828_analog_stream_enable called\n");
+
+ if (test_bit(DEV_DISCONNECTED, &d->dev_state))
+ return -ENODEV;
+
+ iface = usb_ifnum_to_if(d->usbdev, 0);
+ if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
+ dprintk(1, "Changing intf#0 to alt 5\n");
+ /* set au0828 interface0 to AS5 here again */
+ ret = usb_set_interface(d->usbdev, 0, 5);
+ if (ret < 0) {
+ pr_info("Au0828 can't set alt setting to 5!\n");
+ return -EBUSY;
+ }
+ }
+
+ h = d->height / 2 + 2;
+ w = d->width * 2;
+
+ au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
+ au0828_writereg(d, 0x106, 0x00);
+ /* set x position */
+ au0828_writereg(d, 0x110, 0x00);
+ au0828_writereg(d, 0x111, 0x00);
+ au0828_writereg(d, 0x114, w & 0xff);
+ au0828_writereg(d, 0x115, w >> 8);
+ /* set y position */
+ au0828_writereg(d, 0x112, 0x00);
+ au0828_writereg(d, 0x113, 0x00);
+ au0828_writereg(d, 0x116, h & 0xff);
+ au0828_writereg(d, 0x117, h >> 8);
+ au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
+
+ return 0;
+}
+
+static int au0828_analog_stream_disable(struct au0828_dev *d)
+{
+ dprintk(1, "au0828_analog_stream_disable called\n");
+ au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
+ return 0;
+}
+
+static void au0828_analog_stream_reset(struct au0828_dev *dev)
+{
+ dprintk(1, "au0828_analog_stream_reset called\n");
+ au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
+ mdelay(30);
+ au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
+}
+
+/*
+ * Some operations needs to stop current streaming
+ */
+static int au0828_stream_interrupt(struct au0828_dev *dev)
+{
+ dev->stream_state = STREAM_INTERRUPT;
+ if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
+ return -ENODEV;
+ return 0;
+}
+
+int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vq);
+ int rc = 0;
+
+ dprintk(1, "au0828_start_analog_streaming called %d\n",
+ dev->streaming_users);
+
+ if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ dev->frame_count = 0;
+ else
+ dev->vbi_frame_count = 0;
+
+ if (dev->streaming_users == 0) {
+ /* If we were doing ac97 instead of i2s, it would go here...*/
+ au0828_i2s_init(dev);
+ rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
+ AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
+ au0828_isoc_copy);
+ if (rc < 0) {
+ pr_info("au0828_init_isoc failed\n");
+ return rc;
+ }
+
+ v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1);
+
+ if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ dev->vid_timeout_running = 1;
+ mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
+ } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
+ dev->vbi_timeout_running = 1;
+ mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
+ }
+ }
+ dev->streaming_users++;
+ return rc;
+}
+
+static void au0828_stop_streaming(struct vb2_queue *vq)
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vq);
+ struct au0828_dmaqueue *vidq = &dev->vidq;
+ unsigned long flags = 0;
+
+ dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
+
+ if (dev->streaming_users-- == 1) {
+ au0828_uninit_isoc(dev);
+ v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
+ }
+
+ dev->vid_timeout_running = 0;
+ del_timer_sync(&dev->vid_timeout);
+
+ spin_lock_irqsave(&dev->slock, flags);
+ if (dev->isoc_ctl.buf != NULL) {
+ vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
+ VB2_BUF_STATE_ERROR);
+ dev->isoc_ctl.buf = NULL;
+ }
+ while (!list_empty(&vidq->active)) {
+ struct au0828_buffer *buf;
+
+ buf = list_entry(vidq->active.next, struct au0828_buffer, list);
+ vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+ list_del(&buf->list);
+ }
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+void au0828_stop_vbi_streaming(struct vb2_queue *vq)
+{
+ struct au0828_dev *dev = vb2_get_drv_priv(vq);
+ struct au0828_dmaqueue *vbiq = &dev->vbiq;
+ unsigned long flags = 0;
+
+ dprintk(1, "au0828_stop_vbi_streaming called %d\n",
+ dev->streaming_users);
+
+ if (dev->streaming_users-- == 1) {
+ au0828_uninit_isoc(dev);
+ v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
+ }
+
+ spin_lock_irqsave(&dev->slock, flags);
+ if (dev->isoc_ctl.vbi_buf != NULL) {
+ vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
+ VB2_BUF_STATE_ERROR);
+ dev->isoc_ctl.vbi_buf = NULL;
+ }
+ while (!list_empty(&vbiq->active)) {
+ struct au0828_buffer *buf;
+
+ buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+ }
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ dev->vbi_timeout_running = 0;
+ del_timer_sync(&dev->vbi_timeout);
+}
+
+static const struct vb2_ops au0828_video_qops = {
+ .queue_setup = queue_setup,
+ .buf_prepare = buffer_prepare,
+ .buf_queue = buffer_queue,
+ .start_streaming = au0828_start_analog_streaming,
+ .stop_streaming = au0828_stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+/* ------------------------------------------------------------------
+ V4L2 interface
+ ------------------------------------------------------------------*/
+/*
+ * au0828_analog_unregister
+ * unregister v4l2 devices
+ */
+int au0828_analog_unregister(struct au0828_dev *dev)
+{
+ dprintk(1, "au0828_analog_unregister called\n");
+
+ /* No analog TV */
+ if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
+ return 0;
+
+ mutex_lock(&au0828_sysfs_lock);
+ vb2_video_unregister_device(&dev->vdev);
+ vb2_video_unregister_device(&dev->vbi_dev);
+ mutex_unlock(&au0828_sysfs_lock);
+
+ v4l2_device_disconnect(&dev->v4l2_dev);
+ v4l2_device_put(&dev->v4l2_dev);
+
+ return 1;
+}
+
+/* This function ensures that video frames continue to be delivered even if
+ the ITU-656 input isn't receiving any data (thereby preventing applications
+ such as tvtime from hanging) */
+static void au0828_vid_buffer_timeout(struct timer_list *t)
+{
+ struct au0828_dev *dev = from_timer(dev, t, vid_timeout);
+ struct au0828_dmaqueue *dma_q = &dev->vidq;
+ struct au0828_buffer *buf;
+ unsigned char *vid_data;
+ unsigned long flags = 0;
+
+ spin_lock_irqsave(&dev->slock, flags);
+
+ buf = dev->isoc_ctl.buf;
+ if (buf != NULL) {
+ vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+ memset(vid_data, 0x00, buf->length); /* Blank green frame */
+ buffer_filled(dev, dma_q, buf);
+ }
+ get_next_buf(dma_q, &buf);
+
+ if (dev->vid_timeout_running == 1)
+ mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
+
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+static void au0828_vbi_buffer_timeout(struct timer_list *t)
+{
+ struct au0828_dev *dev = from_timer(dev, t, vbi_timeout);
+ struct au0828_dmaqueue *dma_q = &dev->vbiq;
+ struct au0828_buffer *buf;
+ unsigned char *vbi_data;
+ unsigned long flags = 0;
+
+ spin_lock_irqsave(&dev->slock, flags);
+
+ buf = dev->isoc_ctl.vbi_buf;
+ if (buf != NULL) {
+ vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+ memset(vbi_data, 0x00, buf->length);
+ buffer_filled(dev, dma_q, buf);
+ }
+ vbi_get_next_buf(dma_q, &buf);
+
+ if (dev->vbi_timeout_running == 1)
+ mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+static int au0828_v4l2_open(struct file *filp)
+{
+ struct au0828_dev *dev = video_drvdata(filp);
+ int ret;
+
+ dprintk(1,
+ "%s called std_set %d dev_state %ld stream users %d users %d\n",
+ __func__, dev->std_set_in_tuner_core, dev->dev_state,
+ dev->streaming_users, dev->users);
+
+ if (mutex_lock_interruptible(&dev->lock))
+ return -ERESTARTSYS;
+
+ ret = v4l2_fh_open(filp);
+ if (ret) {
+ au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
+ __func__, ret);
+ mutex_unlock(&dev->lock);
+ return ret;
+ }
+
+ if (dev->users == 0) {
+ au0828_analog_stream_enable(dev);
+ au0828_analog_stream_reset(dev);
+ dev->stream_state = STREAM_OFF;
+ set_bit(DEV_INITIALIZED, &dev->dev_state);
+ }
+ dev->users++;
+ mutex_unlock(&dev->lock);
+ return ret;
+}
+
+static int au0828_v4l2_close(struct file *filp)
+{
+ int ret;
+ struct au0828_dev *dev = video_drvdata(filp);
+ struct video_device *vdev = video_devdata(filp);
+
+ dprintk(1,
+ "%s called std_set %d dev_state %ld stream users %d users %d\n",
+ __func__, dev->std_set_in_tuner_core, dev->dev_state,
+ dev->streaming_users, dev->users);
+
+ mutex_lock(&dev->lock);
+ if (vdev->vfl_type == VFL_TYPE_VIDEO && dev->vid_timeout_running) {
+ /* Cancel timeout thread in case they didn't call streamoff */
+ dev->vid_timeout_running = 0;
+ del_timer_sync(&dev->vid_timeout);
+ } else if (vdev->vfl_type == VFL_TYPE_VBI &&
+ dev->vbi_timeout_running) {
+ /* Cancel timeout thread in case they didn't call streamoff */
+ dev->vbi_timeout_running = 0;
+ del_timer_sync(&dev->vbi_timeout);
+ }
+
+ if (test_bit(DEV_DISCONNECTED, &dev->dev_state))
+ goto end;
+
+ if (dev->users == 1) {
+ /*
+ * Avoid putting tuner in sleep if DVB or ALSA are
+ * streaming.
+ *
+ * On most USB devices like au0828 the tuner can
+ * be safely put in sleep state here if ALSA isn't
+ * streaming. Exceptions are some very old USB tuner
+ * models such as em28xx-based WinTV USB2 which have
+ * a separate audio output jack. The devices that have
+ * a separate audio output jack have analog tuners,
+ * like Philips FM1236. Those devices are always on,
+ * so the s_power callback are silently ignored.
+ * So, the current logic here does the following:
+ * Disable (put tuner to sleep) when
+ * - ALSA and DVB aren't streaming.
+ * - the last V4L2 file handler is closed.
+ *
+ * FIXME:
+ *
+ * Additionally, this logic could be improved to
+ * disable the media source if the above conditions
+ * are met and if the device:
+ * - doesn't have a separate audio out plug (or
+ * - doesn't use a silicon tuner like xc2028/3028/4000/5000).
+ *
+ * Once this additional logic is in place, a callback
+ * is needed to enable the media source and power on
+ * the tuner, for radio to work.
+ */
+ ret = v4l_enable_media_source(vdev);
+ if (ret == 0)
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner,
+ standby);
+ dev->std_set_in_tuner_core = 0;
+
+ /* When close the device, set the usb intf0 into alt0 to free
+ USB bandwidth */
+ ret = usb_set_interface(dev->usbdev, 0, 0);
+ if (ret < 0)
+ pr_info("Au0828 can't set alternate to 0!\n");
+ }
+end:
+ _vb2_fop_release(filp, NULL);
+ dev->users--;
+ mutex_unlock(&dev->lock);
+ return 0;
+}
+
+/* Must be called with dev->lock held */
+static void au0828_init_tuner(struct au0828_dev *dev)
+{
+ struct v4l2_frequency f = {
+ .frequency = dev->ctrl_freq,
+ .type = V4L2_TUNER_ANALOG_TV,
+ };
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ if (dev->std_set_in_tuner_core)
+ return;
+ dev->std_set_in_tuner_core = 1;
+ i2c_gate_ctrl(dev, 1);
+ /* If we've never sent the standard in tuner core, do so now.
+ We don't do this at device probe because we don't want to
+ incur the cost of a firmware load */
+ v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
+ i2c_gate_ctrl(dev, 0);
+}
+
+static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
+ struct v4l2_format *format)
+{
+ int ret;
+ int width = format->fmt.pix.width;
+ int height = format->fmt.pix.height;
+
+ /* If they are demanding a format other than the one we support,
+ bail out (tvtime asks for UYVY and then retries with YUYV) */
+ if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
+ return -EINVAL;
+
+ /* format->fmt.pix.width only support 720 and height 480 */
+ if (width != 720)
+ width = 720;
+ if (height != 480)
+ height = 480;
+
+ format->fmt.pix.width = width;
+ format->fmt.pix.height = height;
+ format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
+ format->fmt.pix.bytesperline = width * 2;
+ format->fmt.pix.sizeimage = width * height * 2;
+ format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+ format->fmt.pix.field = V4L2_FIELD_INTERLACED;
+
+ if (cmd == VIDIOC_TRY_FMT)
+ return 0;
+
+ /* maybe set new image format, driver current only support 720*480 */
+ dev->width = width;
+ dev->height = height;
+ dev->frame_size = width * height * 2;
+ dev->field_size = width * height;
+ dev->bytesperline = width * 2;
+
+ if (dev->stream_state == STREAM_ON) {
+ dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
+ ret = au0828_stream_interrupt(dev);
+ if (ret != 0) {
+ dprintk(1, "error interrupting video stream!\n");
+ return ret;
+ }
+ }
+
+ au0828_analog_stream_enable(dev);
+
+ return 0;
+}
+
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ strscpy(cap->driver, "au0828", sizeof(cap->driver));
+ strscpy(cap->card, dev->board.name, sizeof(cap->card));
+ usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
+
+ /* set the device capabilities */
+ cap->capabilities =
+ V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
+ V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_DEVICE_CAPS;
+ return 0;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ if (f->index)
+ return -EINVAL;
+
+ dprintk(1, "%s called\n", __func__);
+
+ f->pixelformat = V4L2_PIX_FMT_UYVY;
+
+ return 0;
+}
+
+static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ f->fmt.pix.width = dev->width;
+ f->fmt.pix.height = dev->height;
+ f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
+ f->fmt.pix.bytesperline = dev->bytesperline;
+ f->fmt.pix.sizeimage = dev->frame_size;
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
+ f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+ return 0;
+}
+
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+ int rc;
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ rc = check_dev(dev);
+ if (rc < 0)
+ return rc;
+
+ if (vb2_is_busy(&dev->vb_vidq)) {
+ pr_info("%s queue busy\n", __func__);
+ rc = -EBUSY;
+ goto out;
+ }
+
+ rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
+out:
+ return rc;
+}
+
+static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ if (norm == dev->std)
+ return 0;
+
+ if (dev->streaming_users > 0)
+ return -EBUSY;
+
+ dev->std = norm;
+
+ au0828_init_tuner(dev);
+
+ i2c_gate_ctrl(dev, 1);
+
+ /*
+ * FIXME: when we support something other than 60Hz standards,
+ * we are going to have to make the au0828 bridge adjust the size
+ * of its capture buffer, which is currently hardcoded at 720x480
+ */
+
+ v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
+
+ i2c_gate_ctrl(dev, 0);
+
+ return 0;
+}
+
+static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ *norm = dev->std;
+ return 0;
+}
+
+static int vidioc_enum_input(struct file *file, void *priv,
+ struct v4l2_input *input)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+ unsigned int tmp;
+
+ static const char *inames[] = {
+ [AU0828_VMUX_UNDEFINED] = "Undefined",
+ [AU0828_VMUX_COMPOSITE] = "Composite",
+ [AU0828_VMUX_SVIDEO] = "S-Video",
+ [AU0828_VMUX_CABLE] = "Cable TV",
+ [AU0828_VMUX_TELEVISION] = "Television",
+ [AU0828_VMUX_DVB] = "DVB",
+ };
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ tmp = input->index;
+
+ if (tmp >= AU0828_MAX_INPUT)
+ return -EINVAL;
+ if (AUVI_INPUT(tmp).type == 0)
+ return -EINVAL;
+
+ input->index = tmp;
+ strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name));
+ if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
+ (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
+ input->type |= V4L2_INPUT_TYPE_TUNER;
+ input->audioset = 1;
+ } else {
+ input->type |= V4L2_INPUT_TYPE_CAMERA;
+ input->audioset = 2;
+ }
+
+ input->std = dev->vdev.tvnorms;
+
+ return 0;
+}
+
+static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ *i = dev->ctrl_input;
+ return 0;
+}
+
+static void au0828_s_input(struct au0828_dev *dev, int index)
+{
+ int i;
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ switch (AUVI_INPUT(index).type) {
+ case AU0828_VMUX_SVIDEO:
+ dev->input_type = AU0828_VMUX_SVIDEO;
+ dev->ctrl_ainput = 1;
+ break;
+ case AU0828_VMUX_COMPOSITE:
+ dev->input_type = AU0828_VMUX_COMPOSITE;
+ dev->ctrl_ainput = 1;
+ break;
+ case AU0828_VMUX_TELEVISION:
+ dev->input_type = AU0828_VMUX_TELEVISION;
+ dev->ctrl_ainput = 0;
+ break;
+ default:
+ dprintk(1, "unknown input type set [%d]\n",
+ AUVI_INPUT(index).type);
+ return;
+ }
+
+ dev->ctrl_input = index;
+
+ v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
+ AUVI_INPUT(index).vmux, 0, 0);
+
+ for (i = 0; i < AU0828_MAX_INPUT; i++) {
+ int enable = 0;
+ if (AUVI_INPUT(i).audio_setup == NULL)
+ continue;
+
+ if (i == index)
+ enable = 1;
+ else
+ enable = 0;
+ if (enable) {
+ (AUVI_INPUT(i).audio_setup)(dev, enable);
+ } else {
+ /* Make sure we leave it turned on if some
+ other input is routed to this callback */
+ if ((AUVI_INPUT(i).audio_setup) !=
+ ((AUVI_INPUT(index).audio_setup))) {
+ (AUVI_INPUT(i).audio_setup)(dev, enable);
+ }
+ }
+ }
+
+ v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
+ AUVI_INPUT(index).amux, 0, 0);
+}
+
+static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+ struct video_device *vfd = video_devdata(file);
+
+ dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
+ index);
+ if (index >= AU0828_MAX_INPUT)
+ return -EINVAL;
+ if (AUVI_INPUT(index).type == 0)
+ return -EINVAL;
+
+ if (dev->ctrl_input == index)
+ return 0;
+
+ au0828_s_input(dev, index);
+
+ /*
+ * Input has been changed. Disable the media source
+ * associated with the old input and enable source
+ * for the newly set input
+ */
+ v4l_disable_media_source(vfd);
+ return v4l_enable_media_source(vfd);
+}
+
+static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ if (a->index > 1)
+ return -EINVAL;
+
+ dprintk(1, "%s called\n", __func__);
+
+ if (a->index == 0)
+ strscpy(a->name, "Television", sizeof(a->name));
+ else
+ strscpy(a->name, "Line in", sizeof(a->name));
+
+ a->capability = V4L2_AUDCAP_STEREO;
+ return 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ a->index = dev->ctrl_ainput;
+ if (a->index == 0)
+ strscpy(a->name, "Television", sizeof(a->name));
+ else
+ strscpy(a->name, "Line in", sizeof(a->name));
+
+ a->capability = V4L2_AUDCAP_STEREO;
+ return 0;
+}
+
+static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ if (a->index != dev->ctrl_ainput)
+ return -EINVAL;
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+ return 0;
+}
+
+static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+ struct video_device *vfd = video_devdata(file);
+ int ret;
+
+ if (t->index != 0)
+ return -EINVAL;
+
+ ret = v4l_enable_media_source(vfd);
+ if (ret)
+ return ret;
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ strscpy(t->name, "Auvitek tuner", sizeof(t->name));
+
+ au0828_init_tuner(dev);
+ i2c_gate_ctrl(dev, 1);
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
+ i2c_gate_ctrl(dev, 0);
+ return 0;
+}
+
+static int vidioc_s_tuner(struct file *file, void *priv,
+ const struct v4l2_tuner *t)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ if (t->index != 0)
+ return -EINVAL;
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ au0828_init_tuner(dev);
+ i2c_gate_ctrl(dev, 1);
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
+ i2c_gate_ctrl(dev, 0);
+
+ dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
+ t->afc);
+
+ return 0;
+
+}
+
+static int vidioc_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *freq)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ if (freq->tuner != 0)
+ return -EINVAL;
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+ freq->frequency = dev->ctrl_freq;
+ return 0;
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv,
+ const struct v4l2_frequency *freq)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+ struct v4l2_frequency new_freq = *freq;
+
+ if (freq->tuner != 0)
+ return -EINVAL;
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ au0828_init_tuner(dev);
+ i2c_gate_ctrl(dev, 1);
+
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
+ /* Get the actual set (and possibly clamped) frequency */
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
+ dev->ctrl_freq = new_freq.frequency;
+
+ i2c_gate_ctrl(dev, 0);
+
+ au0828_analog_stream_reset(dev);
+
+ return 0;
+}
+
+
+/* RAW VBI ioctls */
+
+static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
+ struct v4l2_format *format)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ format->fmt.vbi.samples_per_line = dev->vbi_width;
+ format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
+ format->fmt.vbi.offset = 0;
+ format->fmt.vbi.flags = 0;
+ format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
+
+ format->fmt.vbi.count[0] = dev->vbi_height;
+ format->fmt.vbi.count[1] = dev->vbi_height;
+ format->fmt.vbi.start[0] = 21;
+ format->fmt.vbi.start[1] = 284;
+ memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
+
+ return 0;
+}
+
+static int vidioc_g_pixelaspect(struct file *file, void *priv,
+ int type, struct v4l2_fract *f)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ f->numerator = 54;
+ f->denominator = 59;
+
+ return 0;
+}
+
+static int vidioc_g_selection(struct file *file, void *priv,
+ struct v4l2_selection *s)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ s->r.left = 0;
+ s->r.top = 0;
+ s->r.width = dev->width;
+ s->r.height = dev->height;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int vidioc_g_register(struct file *file, void *priv,
+ struct v4l2_dbg_register *reg)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ reg->val = au0828_read(dev, reg->reg);
+ reg->size = 1;
+ return 0;
+}
+
+static int vidioc_s_register(struct file *file, void *priv,
+ const struct v4l2_dbg_register *reg)
+{
+ struct au0828_dev *dev = video_drvdata(file);
+
+ dprintk(1, "%s called std_set %d dev_state %ld\n", __func__,
+ dev->std_set_in_tuner_core, dev->dev_state);
+
+ return au0828_writereg(dev, reg->reg, reg->val);
+}
+#endif
+
+static int vidioc_log_status(struct file *file, void *fh)
+{
+ struct video_device *vdev = video_devdata(file);
+
+ dprintk(1, "%s called\n", __func__);
+
+ v4l2_ctrl_log_status(file, fh);
+ v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
+ return 0;
+}
+
+void au0828_v4l2_suspend(struct au0828_dev *dev)
+{
+ struct urb *urb;
+ int i;
+
+ pr_info("stopping V4L2\n");
+
+ if (dev->stream_state == STREAM_ON) {
+ pr_info("stopping V4L2 active URBs\n");
+ au0828_analog_stream_disable(dev);
+ /* stop urbs */
+ for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
+ urb = dev->isoc_ctl.urb[i];
+ if (urb) {
+ if (!irqs_disabled())
+ usb_kill_urb(urb);
+ else
+ usb_unlink_urb(urb);
+ }
+ }
+ }
+
+ if (dev->vid_timeout_running)
+ del_timer_sync(&dev->vid_timeout);
+ if (dev->vbi_timeout_running)
+ del_timer_sync(&dev->vbi_timeout);
+}
+
+void au0828_v4l2_resume(struct au0828_dev *dev)
+{
+ int i, rc;
+
+ pr_info("restarting V4L2\n");
+
+ if (dev->stream_state == STREAM_ON) {
+ au0828_stream_interrupt(dev);
+ au0828_init_tuner(dev);
+ }
+
+ if (dev->vid_timeout_running)
+ mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
+ if (dev->vbi_timeout_running)
+ mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
+
+ /* If we were doing ac97 instead of i2s, it would go here...*/
+ au0828_i2s_init(dev);
+
+ au0828_analog_stream_enable(dev);
+
+ if (!(dev->stream_state == STREAM_ON)) {
+ au0828_analog_stream_reset(dev);
+ /* submit urbs */
+ for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
+ rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
+ if (rc) {
+ au0828_isocdbg("submit of urb %i failed (error=%i)\n",
+ i, rc);
+ au0828_uninit_isoc(dev);
+ }
+ }
+ }
+}
+
+static const struct v4l2_file_operations au0828_v4l_fops = {
+ .owner = THIS_MODULE,
+ .open = au0828_v4l2_open,
+ .release = au0828_v4l2_close,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
+ .unlocked_ioctl = video_ioctl2,
+};
+
+static const struct v4l2_ioctl_ops video_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
+ .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
+ .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
+ .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
+ .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
+ .vidioc_enumaudio = vidioc_enumaudio,
+ .vidioc_g_audio = vidioc_g_audio,
+ .vidioc_s_audio = vidioc_s_audio,
+ .vidioc_g_pixelaspect = vidioc_g_pixelaspect,
+ .vidioc_g_selection = vidioc_g_selection,
+
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+
+ .vidioc_s_std = vidioc_s_std,
+ .vidioc_g_std = vidioc_g_std,
+ .vidioc_enum_input = vidioc_enum_input,
+ .vidioc_g_input = vidioc_g_input,
+ .vidioc_s_input = vidioc_s_input,
+
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+
+ .vidioc_g_tuner = vidioc_g_tuner,
+ .vidioc_s_tuner = vidioc_s_tuner,
+ .vidioc_g_frequency = vidioc_g_frequency,
+ .vidioc_s_frequency = vidioc_s_frequency,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_register = vidioc_g_register,
+ .vidioc_s_register = vidioc_s_register,
+#endif
+ .vidioc_log_status = vidioc_log_status,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static const struct video_device au0828_video_template = {
+ .fops = &au0828_v4l_fops,
+ .release = video_device_release_empty,
+ .ioctl_ops = &video_ioctl_ops,
+ .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
+};
+
+static int au0828_vb2_setup(struct au0828_dev *dev)
+{
+ int rc;
+ struct vb2_queue *q;
+
+ /* Setup Videobuf2 for Video capture */
+ q = &dev->vb_vidq;
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->drv_priv = dev;
+ q->buf_struct_size = sizeof(struct au0828_buffer);
+ q->ops = &au0828_video_qops;
+ q->mem_ops = &vb2_vmalloc_memops;
+
+ rc = vb2_queue_init(q);
+ if (rc < 0)
+ return rc;
+
+ /* Setup Videobuf2 for VBI capture */
+ q = &dev->vb_vbiq;
+ q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
+ q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->drv_priv = dev;
+ q->buf_struct_size = sizeof(struct au0828_buffer);
+ q->ops = &au0828_vbi_qops;
+ q->mem_ops = &vb2_vmalloc_memops;
+
+ rc = vb2_queue_init(q);
+ if (rc < 0)
+ return rc;
+
+ return 0;
+}
+
+static void au0828_analog_create_entities(struct au0828_dev *dev)
+{
+#if defined(CONFIG_MEDIA_CONTROLLER)
+ static const char * const inames[] = {
+ [AU0828_VMUX_COMPOSITE] = "Composite",
+ [AU0828_VMUX_SVIDEO] = "S-Video",
+ [AU0828_VMUX_CABLE] = "Cable TV",
+ [AU0828_VMUX_TELEVISION] = "Television",
+ [AU0828_VMUX_DVB] = "DVB",
+ };
+ int ret, i;
+
+ /* Initialize Video and VBI pads */
+ dev->video_pad.flags = MEDIA_PAD_FL_SINK;
+ ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad);
+ if (ret < 0)
+ pr_err("failed to initialize video media entity!\n");
+
+ dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
+ ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad);
+ if (ret < 0)
+ pr_err("failed to initialize vbi media entity!\n");
+
+ /* Create entities for each input connector */
+ for (i = 0; i < AU0828_MAX_INPUT; i++) {
+ struct media_entity *ent = &dev->input_ent[i];
+
+ if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED)
+ break;
+
+ ent->name = inames[AUVI_INPUT(i).type];
+ ent->flags = MEDIA_ENT_FL_CONNECTOR;
+ dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
+
+ switch (AUVI_INPUT(i).type) {
+ case AU0828_VMUX_COMPOSITE:
+ ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
+ break;
+ case AU0828_VMUX_SVIDEO:
+ ent->function = MEDIA_ENT_F_CONN_SVIDEO;
+ break;
+ case AU0828_VMUX_CABLE:
+ case AU0828_VMUX_TELEVISION:
+ case AU0828_VMUX_DVB:
+ default: /* Just to shut up a warning */
+ ent->function = MEDIA_ENT_F_CONN_RF;
+ break;
+ }
+
+ ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
+ if (ret < 0)
+ pr_err("failed to initialize input pad[%d]!\n", i);
+
+ ret = media_device_register_entity(dev->media_dev, ent);
+ if (ret < 0)
+ pr_err("failed to register input entity %d!\n", i);
+ }
+#endif
+}
+
+/**************************************************************************/
+
+int au0828_analog_register(struct au0828_dev *dev,
+ struct usb_interface *interface)
+{
+ int retval = -ENOMEM;
+ struct usb_host_interface *iface_desc;
+ struct usb_endpoint_descriptor *endpoint;
+ int i, ret;
+
+ dprintk(1, "au0828_analog_register called for intf#%d!\n",
+ interface->cur_altsetting->desc.bInterfaceNumber);
+
+ /* No analog TV */
+ if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED)
+ return 0;
+
+ /* set au0828 usb interface0 to as5 */
+ retval = usb_set_interface(dev->usbdev,
+ interface->cur_altsetting->desc.bInterfaceNumber, 5);
+ if (retval != 0) {
+ pr_info("Failure setting usb interface0 to as5\n");
+ return retval;
+ }
+
+ /* Figure out which endpoint has the isoc interface */
+ iface_desc = interface->cur_altsetting;
+ for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
+ endpoint = &iface_desc->endpoint[i].desc;
+ if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+ == USB_DIR_IN) &&
+ ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ == USB_ENDPOINT_XFER_ISOC)) {
+
+ /* we find our isoc in endpoint */
+ u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
+ dev->max_pkt_size = (tmp & 0x07ff) *
+ (((tmp & 0x1800) >> 11) + 1);
+ dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
+ dprintk(1,
+ "Found isoc endpoint 0x%02x, max size = %d\n",
+ dev->isoc_in_endpointaddr, dev->max_pkt_size);
+ }
+ }
+ if (!(dev->isoc_in_endpointaddr)) {
+ pr_info("Could not locate isoc endpoint\n");
+ return -ENODEV;
+ }
+
+ init_waitqueue_head(&dev->open);
+ spin_lock_init(&dev->slock);
+
+ /* init video dma queues */
+ INIT_LIST_HEAD(&dev->vidq.active);
+ INIT_LIST_HEAD(&dev->vbiq.active);
+
+ timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0);
+ timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0);
+
+ dev->width = NTSC_STD_W;
+ dev->height = NTSC_STD_H;
+ dev->field_size = dev->width * dev->height;
+ dev->frame_size = dev->field_size << 1;
+ dev->bytesperline = dev->width << 1;
+ dev->vbi_width = 720;
+ dev->vbi_height = 1;
+ dev->ctrl_ainput = 0;
+ dev->ctrl_freq = 960;
+ dev->std = V4L2_STD_NTSC_M;
+ /* Default input is TV Tuner */
+ au0828_s_input(dev, 0);
+
+ mutex_init(&dev->vb_queue_lock);
+ mutex_init(&dev->vb_vbi_queue_lock);
+
+ /* Fill the video capture device struct */
+ dev->vdev = au0828_video_template;
+ dev->vdev.v4l2_dev = &dev->v4l2_dev;
+ dev->vdev.lock = &dev->lock;
+ dev->vdev.queue = &dev->vb_vidq;
+ dev->vdev.queue->lock = &dev->vb_queue_lock;
+ dev->vdev.device_caps =
+ V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
+ V4L2_CAP_TUNER | V4L2_CAP_VIDEO_CAPTURE;
+ strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name));
+
+ /* Setup the VBI device */
+ dev->vbi_dev = au0828_video_template;
+ dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
+ dev->vbi_dev.lock = &dev->lock;
+ dev->vbi_dev.queue = &dev->vb_vbiq;
+ dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
+ dev->vbi_dev.device_caps =
+ V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
+ V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE;
+ strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name));
+
+ /* Init entities at the Media Controller */
+ au0828_analog_create_entities(dev);
+
+ /* initialize videobuf2 stuff */
+ retval = au0828_vb2_setup(dev);
+ if (retval != 0) {
+ dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
+ retval);
+ return -ENODEV;
+ }
+
+ /* Register the v4l2 device */
+ video_set_drvdata(&dev->vdev, dev);
+ retval = video_register_device(&dev->vdev, VFL_TYPE_VIDEO, -1);
+ if (retval != 0) {
+ dprintk(1, "unable to register video device (error = %d).\n",
+ retval);
+ return -ENODEV;
+ }
+
+ /* Register the vbi device */
+ video_set_drvdata(&dev->vbi_dev, dev);
+ retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
+ if (retval != 0) {
+ dprintk(1, "unable to register vbi device (error = %d).\n",
+ retval);
+ ret = -ENODEV;
+ goto err_reg_vbi_dev;
+ }
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+ retval = v4l2_mc_create_media_graph(dev->media_dev);
+ if (retval) {
+ pr_err("%s() au0282_dev_register failed to create graph\n",
+ __func__);
+ ret = -ENODEV;
+ goto err_reg_vbi_dev;
+ }
+#endif
+
+ dprintk(1, "%s completed!\n", __func__);
+
+ return 0;
+
+err_reg_vbi_dev:
+ vb2_video_unregister_device(&dev->vdev);
+ return ret;
+}
+
diff --git a/drivers/media/usb/au0828/au0828.h b/drivers/media/usb/au0828/au0828.h
new file mode 100644
index 000000000..01a668b1b
--- /dev/null
+++ b/drivers/media/usb/au0828/au0828.h
@@ -0,0 +1,373 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Driver for the Auvitek AU0828 USB bridge
+ *
+ * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/bitops.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <media/tveeprom.h>
+
+/* Analog */
+#include <linux/videodev2.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/videobuf2-vmalloc.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fh.h>
+#include <media/media-device.h>
+#include <media/media-dev-allocator.h>
+
+/* DVB */
+#include <media/demux.h>
+#include <media/dmxdev.h>
+#include <media/dvb_demux.h>
+#include <media/dvb_frontend.h>
+#include <media/dvb_net.h>
+#include <media/dvbdev.h>
+
+#include "au0828-reg.h"
+#include "au0828-cards.h"
+
+#define URB_COUNT 16
+#define URB_BUFSIZE (0xe522)
+
+/* Analog constants */
+#define NTSC_STD_W 720
+#define NTSC_STD_H 480
+
+#define AU0828_INTERLACED_DEFAULT 1
+
+/* Definition for AU0828 USB transfer */
+#define AU0828_MAX_ISO_BUFS 12 /* maybe resize this value in the future */
+#define AU0828_ISO_PACKETS_PER_URB 128
+
+#define AU0828_MIN_BUF 4
+#define AU0828_DEF_BUF 8
+
+#define AU0828_MAX_INPUT 4
+
+/* au0828 resource types (used for res_get/res_lock etc */
+#define AU0828_RESOURCE_VIDEO 0x01
+#define AU0828_RESOURCE_VBI 0x02
+
+enum au0828_itype {
+ AU0828_VMUX_UNDEFINED = 0,
+ AU0828_VMUX_COMPOSITE,
+ AU0828_VMUX_SVIDEO,
+ AU0828_VMUX_CABLE,
+ AU0828_VMUX_TELEVISION,
+ AU0828_VMUX_DVB,
+};
+
+struct au0828_input {
+ enum au0828_itype type;
+ unsigned int vmux;
+ unsigned int amux;
+ void (*audio_setup) (void *priv, int enable);
+};
+
+struct au0828_board {
+ char *name;
+ unsigned int tuner_type;
+ unsigned char tuner_addr;
+ unsigned char i2c_clk_divider;
+ unsigned char has_ir_i2c:1;
+ unsigned char has_analog:1;
+ struct au0828_input input[AU0828_MAX_INPUT];
+};
+
+struct au0828_dvb {
+ struct mutex lock;
+ struct dvb_adapter adapter;
+ struct dvb_frontend *frontend;
+ struct dvb_demux demux;
+ struct dmxdev dmxdev;
+ struct dmx_frontend fe_hw;
+ struct dmx_frontend fe_mem;
+ struct dvb_net net;
+ int feeding;
+ int start_count;
+ int stop_count;
+
+ int (*set_frontend)(struct dvb_frontend *fe);
+};
+
+enum au0828_stream_state {
+ STREAM_OFF,
+ STREAM_INTERRUPT,
+ STREAM_ON
+};
+
+#define AUVI_INPUT(nr) (dev->board.input[nr])
+
+/* device state */
+enum au0828_dev_state {
+ DEV_INITIALIZED = 0,
+ DEV_DISCONNECTED = 1,
+ DEV_MISCONFIGURED = 2
+};
+
+struct au0828_dev;
+
+struct au0828_usb_isoc_ctl {
+ /* max packet size of isoc transaction */
+ int max_pkt_size;
+
+ /* number of allocated urbs */
+ int num_bufs;
+
+ /* urb for isoc transfers */
+ struct urb **urb;
+
+ /* transfer buffers for isoc transfer */
+ char **transfer_buffer;
+
+ /* Last buffer command and region */
+ u8 cmd;
+ int pos, size, pktsize;
+
+ /* Last field: ODD or EVEN? */
+ int field;
+
+ /* Stores incomplete commands */
+ u32 tmp_buf;
+ int tmp_buf_len;
+
+ /* Stores already requested buffers */
+ struct au0828_buffer *buf;
+ struct au0828_buffer *vbi_buf;
+
+ /* Stores the number of received fields */
+ int nfields;
+
+ /* isoc urb callback */
+ int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
+
+};
+
+/* buffer for one video frame */
+struct au0828_buffer {
+ /* common v4l buffer stuff -- must be first */
+ struct vb2_v4l2_buffer vb;
+ struct list_head list;
+
+ void *mem;
+ unsigned long length;
+ int top_field;
+ /* pointer to vmalloc memory address in vb */
+ char *vb_buf;
+};
+
+struct au0828_dmaqueue {
+ struct list_head active;
+ /* Counters to control buffer fill */
+ int pos;
+};
+
+struct au0828_dev {
+ struct mutex mutex;
+ struct usb_device *usbdev;
+ int boardnr;
+ struct au0828_board board;
+ u8 ctrlmsg[64];
+
+ /* I2C */
+ struct i2c_adapter i2c_adap;
+ struct i2c_algorithm i2c_algo;
+ struct i2c_client i2c_client;
+ u32 i2c_rc;
+
+ /* Digital */
+ struct au0828_dvb dvb;
+ struct work_struct restart_streaming;
+ struct timer_list bulk_timeout;
+ int bulk_timeout_running;
+
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+ /* Analog */
+ struct v4l2_device v4l2_dev;
+ struct v4l2_ctrl_handler v4l2_ctrl_hdl;
+#endif
+#ifdef CONFIG_VIDEO_AU0828_RC
+ struct au0828_rc *ir;
+#endif
+
+ struct video_device vdev;
+ struct video_device vbi_dev;
+
+ /* Videobuf2 */
+ struct vb2_queue vb_vidq;
+ struct vb2_queue vb_vbiq;
+ struct mutex vb_queue_lock;
+ struct mutex vb_vbi_queue_lock;
+
+ unsigned int frame_count;
+ unsigned int vbi_frame_count;
+
+ struct timer_list vid_timeout;
+ int vid_timeout_running;
+ struct timer_list vbi_timeout;
+ int vbi_timeout_running;
+
+ int users;
+ int streaming_users;
+
+ int width;
+ int height;
+ int vbi_width;
+ int vbi_height;
+ u32 vbi_read;
+ v4l2_std_id std;
+ u32 field_size;
+ u32 frame_size;
+ u32 bytesperline;
+ int type;
+ u8 ctrl_ainput;
+ __u8 isoc_in_endpointaddr;
+ u8 isoc_init_ok;
+ int greenscreen_detected;
+ int ctrl_freq;
+ int input_type;
+ int std_set_in_tuner_core;
+ unsigned int ctrl_input;
+ long unsigned int dev_state; /* defined at enum au0828_dev_state */;
+ enum au0828_stream_state stream_state;
+ wait_queue_head_t open;
+
+ struct mutex lock;
+
+ /* Isoc control struct */
+ struct au0828_dmaqueue vidq;
+ struct au0828_dmaqueue vbiq;
+ struct au0828_usb_isoc_ctl isoc_ctl;
+ spinlock_t slock;
+
+ /* usb transfer */
+ int alt; /* alternate */
+ int max_pkt_size; /* max packet size of isoc transaction */
+ int num_alt; /* Number of alternative settings */
+ unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
+ struct urb *urb[AU0828_MAX_ISO_BUFS]; /* urb for isoc transfers */
+ char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc
+ transfer */
+
+ /* DVB USB / URB Related */
+ bool urb_streaming, need_urb_start;
+ struct urb *urbs[URB_COUNT];
+
+ /* Preallocated transfer digital transfer buffers */
+
+ char *dig_transfer_buffer[URB_COUNT];
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+ struct media_device *media_dev;
+ struct media_pad video_pad, vbi_pad;
+ struct media_entity *decoder;
+ struct media_entity input_ent[AU0828_MAX_INPUT];
+ struct media_pad input_pad[AU0828_MAX_INPUT];
+ struct media_entity_notify entity_notify;
+ struct media_entity *tuner;
+ struct media_link *active_link;
+ struct media_entity *active_source;
+ struct media_entity *active_sink;
+ struct media_entity *active_link_owner;
+ struct media_entity *active_link_user;
+ struct media_pipeline *active_link_user_pipe;
+ bool active_link_shared;
+#endif
+};
+
+
+/* ----------------------------------------------------------- */
+#define au0828_read(dev, reg) au0828_readreg(dev, reg)
+#define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)
+#define au0828_andor(dev, reg, mask, value) \
+ au0828_writereg(dev, reg, \
+ (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))
+
+#define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))
+#define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)
+
+/* ----------------------------------------------------------- */
+/* au0828-core.c */
+extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
+extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
+extern void au0828_usb_release(struct au0828_dev *dev);
+extern int au0828_debug;
+
+/* ----------------------------------------------------------- */
+/* au0828-cards.c */
+extern struct au0828_board au0828_boards[];
+extern struct usb_device_id au0828_usb_id_table[];
+extern void au0828_gpio_setup(struct au0828_dev *dev);
+extern int au0828_tuner_callback(void *priv, int component,
+ int command, int arg);
+extern void au0828_card_setup(struct au0828_dev *dev);
+
+/* ----------------------------------------------------------- */
+/* au0828-i2c.c */
+extern int au0828_i2c_register(struct au0828_dev *dev);
+extern int au0828_i2c_unregister(struct au0828_dev *dev);
+
+/* ----------------------------------------------------------- */
+/* au0828-video.c */
+extern int au0828_start_analog_streaming(struct vb2_queue *vq,
+ unsigned int count);
+extern void au0828_stop_vbi_streaming(struct vb2_queue *vq);
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+extern int au0828_v4l2_device_register(struct usb_interface *interface,
+ struct au0828_dev *dev);
+
+extern int au0828_analog_register(struct au0828_dev *dev,
+ struct usb_interface *interface);
+extern int au0828_analog_unregister(struct au0828_dev *dev);
+extern void au0828_usb_v4l2_media_release(struct au0828_dev *dev);
+extern void au0828_v4l2_suspend(struct au0828_dev *dev);
+extern void au0828_v4l2_resume(struct au0828_dev *dev);
+#else
+static inline int au0828_v4l2_device_register(struct usb_interface *interface,
+ struct au0828_dev *dev)
+{ return 0; };
+static inline int au0828_analog_register(struct au0828_dev *dev,
+ struct usb_interface *interface)
+{ return 0; };
+static inline int au0828_analog_unregister(struct au0828_dev *dev)
+{ return 0; };
+static inline void au0828_usb_v4l2_media_release(struct au0828_dev *dev) { };
+static inline void au0828_v4l2_suspend(struct au0828_dev *dev) { };
+static inline void au0828_v4l2_resume(struct au0828_dev *dev) { };
+#endif
+
+/* ----------------------------------------------------------- */
+/* au0828-dvb.c */
+extern int au0828_dvb_register(struct au0828_dev *dev);
+extern void au0828_dvb_unregister(struct au0828_dev *dev);
+void au0828_dvb_suspend(struct au0828_dev *dev);
+void au0828_dvb_resume(struct au0828_dev *dev);
+
+/* au0828-vbi.c */
+extern const struct vb2_ops au0828_vbi_qops;
+
+#define dprintk(level, fmt, arg...)\
+ do { if (au0828_debug & level)\
+ printk(KERN_DEBUG pr_fmt(fmt), ## arg);\
+ } while (0)
+
+/* au0828-input.c */
+#ifdef CONFIG_VIDEO_AU0828_RC
+extern int au0828_rc_register(struct au0828_dev *dev);
+extern void au0828_rc_unregister(struct au0828_dev *dev);
+extern int au0828_rc_suspend(struct au0828_dev *dev);
+extern int au0828_rc_resume(struct au0828_dev *dev);
+#else
+static inline int au0828_rc_register(struct au0828_dev *dev) { return 0; }
+static inline void au0828_rc_unregister(struct au0828_dev *dev) { }
+static inline int au0828_rc_suspend(struct au0828_dev *dev) { return 0; }
+static inline int au0828_rc_resume(struct au0828_dev *dev) { return 0; }
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 02:58:53 +0000