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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/input/joystick/iforce/iforce-usb.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/input/joystick/iforce/iforce-usb.c')
-rw-r--r--drivers/input/joystick/iforce/iforce-usb.c299
1 files changed, 299 insertions, 0 deletions
diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c
new file mode 100644
index 000000000..cba92bd59
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-usb.c
@@ -0,0 +1,299 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+ /*
+ * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ * Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ * USB/RS232 I-Force joysticks and wheels.
+ */
+
+#include <linux/usb.h>
+#include "iforce.h"
+
+struct iforce_usb {
+ struct iforce iforce;
+
+ struct usb_device *usbdev;
+ struct usb_interface *intf;
+ struct urb *irq, *out;
+
+ u8 data_in[IFORCE_MAX_LENGTH] ____cacheline_aligned;
+ u8 data_out[IFORCE_MAX_LENGTH] ____cacheline_aligned;
+};
+
+static void __iforce_usb_xmit(struct iforce *iforce)
+{
+ struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+ iforce);
+ int n, c;
+ unsigned long flags;
+
+ spin_lock_irqsave(&iforce->xmit_lock, flags);
+
+ if (iforce->xmit.head == iforce->xmit.tail) {
+ iforce_clear_xmit_and_wake(iforce);
+ spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+ return;
+ }
+
+ ((char *)iforce_usb->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
+ XMIT_INC(iforce->xmit.tail, 1);
+ n = iforce->xmit.buf[iforce->xmit.tail];
+ XMIT_INC(iforce->xmit.tail, 1);
+
+ iforce_usb->out->transfer_buffer_length = n + 1;
+ iforce_usb->out->dev = iforce_usb->usbdev;
+
+ /* Copy rest of data then */
+ c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
+ if (n < c) c=n;
+
+ memcpy(iforce_usb->out->transfer_buffer + 1,
+ &iforce->xmit.buf[iforce->xmit.tail],
+ c);
+ if (n != c) {
+ memcpy(iforce_usb->out->transfer_buffer + 1 + c,
+ &iforce->xmit.buf[0],
+ n-c);
+ }
+ XMIT_INC(iforce->xmit.tail, n);
+
+ if ( (n=usb_submit_urb(iforce_usb->out, GFP_ATOMIC)) ) {
+ dev_warn(&iforce_usb->intf->dev,
+ "usb_submit_urb failed %d\n", n);
+ iforce_clear_xmit_and_wake(iforce);
+ }
+
+ /* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
+ * As long as the urb completion handler is not called, the transmiting
+ * is considered to be running */
+ spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+}
+
+static void iforce_usb_xmit(struct iforce *iforce)
+{
+ if (!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags))
+ __iforce_usb_xmit(iforce);
+}
+
+static int iforce_usb_get_id(struct iforce *iforce, u8 id,
+ u8 *response_data, size_t *response_len)
+{
+ struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+ iforce);
+ u8 *buf;
+ int status;
+
+ buf = kmalloc(IFORCE_MAX_LENGTH, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ status = usb_control_msg(iforce_usb->usbdev,
+ usb_rcvctrlpipe(iforce_usb->usbdev, 0),
+ id,
+ USB_TYPE_VENDOR | USB_DIR_IN |
+ USB_RECIP_INTERFACE,
+ 0, 0, buf, IFORCE_MAX_LENGTH, 1000);
+ if (status < 0) {
+ dev_err(&iforce_usb->intf->dev,
+ "usb_submit_urb failed: %d\n", status);
+ } else if (buf[0] != id) {
+ status = -EIO;
+ } else {
+ memcpy(response_data, buf, status);
+ *response_len = status;
+ status = 0;
+ }
+
+ kfree(buf);
+ return status;
+}
+
+static int iforce_usb_start_io(struct iforce *iforce)
+{
+ struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+ iforce);
+
+ if (usb_submit_urb(iforce_usb->irq, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+static void iforce_usb_stop_io(struct iforce *iforce)
+{
+ struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
+ iforce);
+
+ usb_kill_urb(iforce_usb->irq);
+ usb_kill_urb(iforce_usb->out);
+}
+
+static const struct iforce_xport_ops iforce_usb_xport_ops = {
+ .xmit = iforce_usb_xmit,
+ .get_id = iforce_usb_get_id,
+ .start_io = iforce_usb_start_io,
+ .stop_io = iforce_usb_stop_io,
+};
+
+static void iforce_usb_irq(struct urb *urb)
+{
+ struct iforce_usb *iforce_usb = urb->context;
+ struct iforce *iforce = &iforce_usb->iforce;
+ struct device *dev = &iforce_usb->intf->dev;
+ int status;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dev_dbg(dev, "%s - urb shutting down with status: %d\n",
+ __func__, urb->status);
+ return;
+ default:
+ dev_dbg(dev, "%s - urb has status of: %d\n",
+ __func__, urb->status);
+ goto exit;
+ }
+
+ iforce_process_packet(iforce, iforce_usb->data_in[0],
+ iforce_usb->data_in + 1, urb->actual_length - 1);
+
+exit:
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status)
+ dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
+ __func__, status);
+}
+
+static void iforce_usb_out(struct urb *urb)
+{
+ struct iforce_usb *iforce_usb = urb->context;
+ struct iforce *iforce = &iforce_usb->iforce;
+
+ if (urb->status) {
+ dev_dbg(&iforce_usb->intf->dev, "urb->status %d, exiting\n",
+ urb->status);
+ iforce_clear_xmit_and_wake(iforce);
+ return;
+ }
+
+ __iforce_usb_xmit(iforce);
+
+ wake_up_all(&iforce->wait);
+}
+
+static int iforce_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usb_host_interface *interface;
+ struct usb_endpoint_descriptor *epirq, *epout;
+ struct iforce_usb *iforce_usb;
+ int err = -ENOMEM;
+
+ interface = intf->cur_altsetting;
+
+ if (interface->desc.bNumEndpoints < 2)
+ return -ENODEV;
+
+ epirq = &interface->endpoint[0].desc;
+ if (!usb_endpoint_is_int_in(epirq))
+ return -ENODEV;
+
+ epout = &interface->endpoint[1].desc;
+ if (!usb_endpoint_is_int_out(epout))
+ return -ENODEV;
+
+ iforce_usb = kzalloc(sizeof(*iforce_usb), GFP_KERNEL);
+ if (!iforce_usb)
+ goto fail;
+
+ iforce_usb->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!iforce_usb->irq)
+ goto fail;
+
+ iforce_usb->out = usb_alloc_urb(0, GFP_KERNEL);
+ if (!iforce_usb->out)
+ goto fail;
+
+ iforce_usb->iforce.xport_ops = &iforce_usb_xport_ops;
+
+ iforce_usb->usbdev = dev;
+ iforce_usb->intf = intf;
+
+ usb_fill_int_urb(iforce_usb->irq, dev,
+ usb_rcvintpipe(dev, epirq->bEndpointAddress),
+ iforce_usb->data_in, sizeof(iforce_usb->data_in),
+ iforce_usb_irq, iforce_usb, epirq->bInterval);
+
+ usb_fill_int_urb(iforce_usb->out, dev,
+ usb_sndintpipe(dev, epout->bEndpointAddress),
+ iforce_usb->data_out, sizeof(iforce_usb->data_out),
+ iforce_usb_out, iforce_usb, epout->bInterval);
+
+ err = iforce_init_device(&intf->dev, BUS_USB, &iforce_usb->iforce);
+ if (err)
+ goto fail;
+
+ usb_set_intfdata(intf, iforce_usb);
+ return 0;
+
+fail:
+ if (iforce_usb) {
+ usb_free_urb(iforce_usb->irq);
+ usb_free_urb(iforce_usb->out);
+ kfree(iforce_usb);
+ }
+
+ return err;
+}
+
+static void iforce_usb_disconnect(struct usb_interface *intf)
+{
+ struct iforce_usb *iforce_usb = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+
+ input_unregister_device(iforce_usb->iforce.dev);
+
+ usb_free_urb(iforce_usb->irq);
+ usb_free_urb(iforce_usb->out);
+
+ kfree(iforce_usb);
+}
+
+static const struct usb_device_id iforce_usb_ids[] = {
+ { USB_DEVICE(0x044f, 0xa01c) }, /* Thrustmaster Motor Sport GT */
+ { USB_DEVICE(0x046d, 0xc281) }, /* Logitech WingMan Force */
+ { USB_DEVICE(0x046d, 0xc291) }, /* Logitech WingMan Formula Force */
+ { USB_DEVICE(0x05ef, 0x020a) }, /* AVB Top Shot Pegasus */
+ { USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */
+ { USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */
+ { USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */
+ { USB_DEVICE(0x061c, 0xc084) }, /* ACT LABS Force RS */
+ { USB_DEVICE(0x06a3, 0xff04) }, /* Saitek R440 Force Wheel */
+ { USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */
+ { USB_DEVICE(0x06f8, 0x0003) }, /* Guillemot Jet Leader Force Feedback */
+ { USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */
+ { USB_DEVICE(0x06f8, 0xa302) }, /* Guillemot Jet Leader 3D */
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, iforce_usb_ids);
+
+struct usb_driver iforce_usb_driver = {
+ .name = "iforce",
+ .probe = iforce_usb_probe,
+ .disconnect = iforce_usb_disconnect,
+ .id_table = iforce_usb_ids,
+};
+
+module_usb_driver(iforce_usb_driver);
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
+MODULE_DESCRIPTION("USB I-Force joysticks and wheels driver");
+MODULE_LICENSE("GPL");