mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-06 02:24:14 +08:00
172876928f
The timestamps in ir-keytable -t output showed that the Xbox DVD IR dongle decodes scancodes every 64ms. The last scancode of a longer button press is decodes 64ms after the last-but-one which indicates the decoder doesn't use a timeout but decodes on the last edge of the signal. 267.042629: lirc protocol(unknown): scancode = 0xace 267.042665: event type EV_MSC(0x04): scancode = 0xace 267.042665: event type EV_KEY(0x01) key_down: KEY_1(0x0002) 267.042665: event type EV_SYN(0x00). 267.106625: lirc protocol(unknown): scancode = 0xace 267.106643: event type EV_MSC(0x04): scancode = 0xace 267.106643: event type EV_SYN(0x00). 267.170623: lirc protocol(unknown): scancode = 0xace 267.170638: event type EV_MSC(0x04): scancode = 0xace 267.170638: event type EV_SYN(0x00). 267.234621: lirc protocol(unknown): scancode = 0xace 267.234636: event type EV_MSC(0x04): scancode = 0xace 267.234636: event type EV_SYN(0x00). 267.298623: lirc protocol(unknown): scancode = 0xace 267.298638: event type EV_MSC(0x04): scancode = 0xace 267.298638: event type EV_SYN(0x00). 267.543345: event type EV_KEY(0x01) key_down: KEY_1(0x0002) 267.543345: event type EV_SYN(0x00). 267.570015: event type EV_KEY(0x01) key_up: KEY_1(0x0002) 267.570015: event type EV_SYN(0x00). Add a protocol with the repeat value and set the timeout in the driver to 10ms (to have a bit of headroom for delays) so the Xbox DVD remote performs more responsive. Signed-off-by: Matthias Reichl <hias@horus.com> Acked-by: Benjamin Valentin <benpicco@googlemail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
309 lines
7.9 KiB
C
309 lines
7.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
// Driver for Xbox DVD Movie Playback Kit
|
|
// Copyright (c) 2018 by Benjamin Valentin <benpicco@googlemail.com>
|
|
|
|
/*
|
|
* Xbox DVD Movie Playback Kit USB IR dongle support
|
|
*
|
|
* The driver was derived from the ati_remote driver 2.2.1
|
|
* and used information from lirc_xbox.c
|
|
*
|
|
* Copyright (c) 2011, 2012 Anssi Hannula <anssi.hannula@iki.fi>
|
|
* Copyright (c) 2004 Torrey Hoffman <thoffman@arnor.net>
|
|
* Copyright (c) 2002 Vladimir Dergachev
|
|
* Copyright (c) 2003-2004 Paul Miller <pmiller9@users.sourceforge.net>
|
|
*/
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/module.h>
|
|
#include <linux/usb/input.h>
|
|
#include <media/rc-core.h>
|
|
|
|
/*
|
|
* Module and Version Information
|
|
*/
|
|
#define DRIVER_VERSION "1.0.0"
|
|
#define DRIVER_AUTHOR "Benjamin Valentin <benpicco@googlemail.com>"
|
|
#define DRIVER_DESC "Xbox DVD USB Remote Control"
|
|
|
|
#define NAME_BUFSIZE 80 /* size of product name, path buffers */
|
|
#define DATA_BUFSIZE 8 /* size of URB data buffers */
|
|
|
|
/*
|
|
* USB vendor ids for XBOX DVD Dongles
|
|
*/
|
|
#define VENDOR_GAMESTER 0x040b
|
|
#define VENDOR_MICROSOFT 0x045e
|
|
|
|
static const struct usb_device_id xbox_remote_table[] = {
|
|
/* Gamester Xbox DVD Movie Playback Kit IR */
|
|
{
|
|
USB_DEVICE(VENDOR_GAMESTER, 0x6521),
|
|
},
|
|
/* Microsoft Xbox DVD Movie Playback Kit IR */
|
|
{
|
|
USB_DEVICE(VENDOR_MICROSOFT, 0x0284),
|
|
},
|
|
{} /* Terminating entry */
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(usb, xbox_remote_table);
|
|
|
|
struct xbox_remote {
|
|
struct rc_dev *rdev;
|
|
struct usb_device *udev;
|
|
struct usb_interface *interface;
|
|
|
|
struct urb *irq_urb;
|
|
unsigned char inbuf[DATA_BUFSIZE] __aligned(sizeof(u16));
|
|
|
|
char rc_name[NAME_BUFSIZE];
|
|
char rc_phys[NAME_BUFSIZE];
|
|
};
|
|
|
|
static int xbox_remote_rc_open(struct rc_dev *rdev)
|
|
{
|
|
struct xbox_remote *xbox_remote = rdev->priv;
|
|
|
|
/* On first open, submit the read urb which was set up previously. */
|
|
xbox_remote->irq_urb->dev = xbox_remote->udev;
|
|
if (usb_submit_urb(xbox_remote->irq_urb, GFP_KERNEL)) {
|
|
dev_err(&xbox_remote->interface->dev,
|
|
"%s: usb_submit_urb failed!\n", __func__);
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void xbox_remote_rc_close(struct rc_dev *rdev)
|
|
{
|
|
struct xbox_remote *xbox_remote = rdev->priv;
|
|
|
|
usb_kill_urb(xbox_remote->irq_urb);
|
|
}
|
|
|
|
/*
|
|
* xbox_remote_report_input
|
|
*/
|
|
static void xbox_remote_input_report(struct urb *urb)
|
|
{
|
|
struct xbox_remote *xbox_remote = urb->context;
|
|
unsigned char *data = xbox_remote->inbuf;
|
|
|
|
/*
|
|
* data[0] = 0x00
|
|
* data[1] = length - always 0x06
|
|
* data[2] = the key code
|
|
* data[3] = high part of key code
|
|
* data[4] = last_press_ms (low)
|
|
* data[5] = last_press_ms (high)
|
|
*/
|
|
|
|
/* Deal with strange looking inputs */
|
|
if (urb->actual_length != 6 || urb->actual_length != data[1]) {
|
|
dev_warn(&urb->dev->dev, "Weird data, len=%d: %*ph\n",
|
|
urb->actual_length, urb->actual_length, data);
|
|
return;
|
|
}
|
|
|
|
rc_keydown(xbox_remote->rdev, RC_PROTO_XBOX_DVD,
|
|
le16_to_cpup((__le16 *)(data + 2)), 0);
|
|
}
|
|
|
|
/*
|
|
* xbox_remote_irq_in
|
|
*/
|
|
static void xbox_remote_irq_in(struct urb *urb)
|
|
{
|
|
struct xbox_remote *xbox_remote = urb->context;
|
|
int retval;
|
|
|
|
switch (urb->status) {
|
|
case 0: /* success */
|
|
xbox_remote_input_report(urb);
|
|
break;
|
|
case -ECONNRESET: /* unlink */
|
|
case -ENOENT:
|
|
case -ESHUTDOWN:
|
|
dev_dbg(&xbox_remote->interface->dev,
|
|
"%s: urb error status, unlink?\n",
|
|
__func__);
|
|
return;
|
|
default: /* error */
|
|
dev_dbg(&xbox_remote->interface->dev,
|
|
"%s: Nonzero urb status %d\n",
|
|
__func__, urb->status);
|
|
}
|
|
|
|
retval = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (retval)
|
|
dev_err(&xbox_remote->interface->dev,
|
|
"%s: usb_submit_urb()=%d\n",
|
|
__func__, retval);
|
|
}
|
|
|
|
static void xbox_remote_rc_init(struct xbox_remote *xbox_remote)
|
|
{
|
|
struct rc_dev *rdev = xbox_remote->rdev;
|
|
|
|
rdev->priv = xbox_remote;
|
|
rdev->allowed_protocols = RC_PROTO_BIT_XBOX_DVD;
|
|
rdev->driver_name = "xbox_remote";
|
|
|
|
rdev->open = xbox_remote_rc_open;
|
|
rdev->close = xbox_remote_rc_close;
|
|
|
|
rdev->device_name = xbox_remote->rc_name;
|
|
rdev->input_phys = xbox_remote->rc_phys;
|
|
|
|
rdev->timeout = MS_TO_NS(10);
|
|
|
|
usb_to_input_id(xbox_remote->udev, &rdev->input_id);
|
|
rdev->dev.parent = &xbox_remote->interface->dev;
|
|
}
|
|
|
|
static int xbox_remote_initialize(struct xbox_remote *xbox_remote,
|
|
struct usb_endpoint_descriptor *endpoint_in)
|
|
{
|
|
struct usb_device *udev = xbox_remote->udev;
|
|
int pipe, maxp;
|
|
|
|
/* Set up irq_urb */
|
|
pipe = usb_rcvintpipe(udev, endpoint_in->bEndpointAddress);
|
|
maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
|
|
maxp = (maxp > DATA_BUFSIZE) ? DATA_BUFSIZE : maxp;
|
|
|
|
usb_fill_int_urb(xbox_remote->irq_urb, udev, pipe, xbox_remote->inbuf,
|
|
maxp, xbox_remote_irq_in, xbox_remote,
|
|
endpoint_in->bInterval);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* xbox_remote_probe
|
|
*/
|
|
static int xbox_remote_probe(struct usb_interface *interface,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *udev = interface_to_usbdev(interface);
|
|
struct usb_host_interface *iface_host = interface->cur_altsetting;
|
|
struct usb_endpoint_descriptor *endpoint_in;
|
|
struct xbox_remote *xbox_remote;
|
|
struct rc_dev *rc_dev;
|
|
int err = -ENOMEM;
|
|
|
|
// why is there also a device with no endpoints?
|
|
if (iface_host->desc.bNumEndpoints == 0)
|
|
return -ENODEV;
|
|
|
|
if (iface_host->desc.bNumEndpoints != 1) {
|
|
pr_err("%s: Unexpected desc.bNumEndpoints: %d\n",
|
|
__func__, iface_host->desc.bNumEndpoints);
|
|
return -ENODEV;
|
|
}
|
|
|
|
endpoint_in = &iface_host->endpoint[0].desc;
|
|
|
|
if (!usb_endpoint_is_int_in(endpoint_in)) {
|
|
pr_err("%s: Unexpected endpoint_in\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) {
|
|
pr_err("%s: endpoint_in message size==0?\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
xbox_remote = kzalloc(sizeof(*xbox_remote), GFP_KERNEL);
|
|
rc_dev = rc_allocate_device(RC_DRIVER_SCANCODE);
|
|
if (!xbox_remote || !rc_dev)
|
|
goto exit_free_dev_rdev;
|
|
|
|
/* Allocate URB buffer */
|
|
xbox_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!xbox_remote->irq_urb)
|
|
goto exit_free_buffers;
|
|
|
|
xbox_remote->udev = udev;
|
|
xbox_remote->rdev = rc_dev;
|
|
xbox_remote->interface = interface;
|
|
|
|
usb_make_path(udev, xbox_remote->rc_phys, sizeof(xbox_remote->rc_phys));
|
|
|
|
strlcat(xbox_remote->rc_phys, "/input0", sizeof(xbox_remote->rc_phys));
|
|
|
|
snprintf(xbox_remote->rc_name, sizeof(xbox_remote->rc_name), "%s%s%s",
|
|
udev->manufacturer ?: "",
|
|
udev->manufacturer && udev->product ? " " : "",
|
|
udev->product ?: "");
|
|
|
|
if (!strlen(xbox_remote->rc_name))
|
|
snprintf(xbox_remote->rc_name, sizeof(xbox_remote->rc_name),
|
|
DRIVER_DESC "(%04x,%04x)",
|
|
le16_to_cpu(xbox_remote->udev->descriptor.idVendor),
|
|
le16_to_cpu(xbox_remote->udev->descriptor.idProduct));
|
|
|
|
rc_dev->map_name = RC_MAP_XBOX_DVD; /* default map */
|
|
|
|
xbox_remote_rc_init(xbox_remote);
|
|
|
|
/* Device Hardware Initialization */
|
|
err = xbox_remote_initialize(xbox_remote, endpoint_in);
|
|
if (err)
|
|
goto exit_kill_urbs;
|
|
|
|
/* Set up and register rc device */
|
|
err = rc_register_device(xbox_remote->rdev);
|
|
if (err)
|
|
goto exit_kill_urbs;
|
|
|
|
usb_set_intfdata(interface, xbox_remote);
|
|
|
|
return 0;
|
|
|
|
exit_kill_urbs:
|
|
usb_kill_urb(xbox_remote->irq_urb);
|
|
exit_free_buffers:
|
|
usb_free_urb(xbox_remote->irq_urb);
|
|
exit_free_dev_rdev:
|
|
rc_free_device(rc_dev);
|
|
kfree(xbox_remote);
|
|
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* xbox_remote_disconnect
|
|
*/
|
|
static void xbox_remote_disconnect(struct usb_interface *interface)
|
|
{
|
|
struct xbox_remote *xbox_remote;
|
|
|
|
xbox_remote = usb_get_intfdata(interface);
|
|
usb_set_intfdata(interface, NULL);
|
|
if (!xbox_remote) {
|
|
dev_warn(&interface->dev, "%s - null device?\n", __func__);
|
|
return;
|
|
}
|
|
|
|
usb_kill_urb(xbox_remote->irq_urb);
|
|
rc_unregister_device(xbox_remote->rdev);
|
|
usb_free_urb(xbox_remote->irq_urb);
|
|
kfree(xbox_remote);
|
|
}
|
|
|
|
/* usb specific object to register with the usb subsystem */
|
|
static struct usb_driver xbox_remote_driver = {
|
|
.name = "xbox_remote",
|
|
.probe = xbox_remote_probe,
|
|
.disconnect = xbox_remote_disconnect,
|
|
.id_table = xbox_remote_table,
|
|
};
|
|
|
|
module_usb_driver(xbox_remote_driver);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|