mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 08:14:15 +08:00
Input: xpad - add support for leds on xbox 360 pad
Export LEDs on Xbox360 pad via led subsystem as a single device in /sys/class/leds/xpad[0-9]+. Xbox360 pad has four leds, which form a circle. Unfortunately the leds can't be controlled independently and can only display a predefined set of patterns (for example one is turned on wile others are off or a rotating pattern - 1-2-3-4). To activate a pattern one needs to send a specific command to the device (see http://www.free60.org/wiki/Gamepad). Led subsystem allows us to set brightness, but there is nothing like brightness on this device. So brightness is actually interpreted as the command (only values between 0 and 14 are accepted). Signed-off-by: Jan Kratochvil <honza@jikos.cz> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Jan Kratochvil
Dmitry Torokhov
parent
cb32da0416
commit
4994cd8dad
@ -275,4 +275,11 @@ config JOYSTICK_XPAD_FF
|
||||
---help---
|
||||
Say Y here if you want to take advantage of xbox 360 rumble features.
|
||||
|
||||
config JOYSTICK_XPAD_LEDS
|
||||
bool "LED Support for Xbox360 controller 'BigX' LED"
|
||||
depends on LEDS_CLASS && JOYSTICK_XPAD
|
||||
---help---
|
||||
This option enables support for the LED which surrounds the Big X on
|
||||
XBox 360 controller.
|
||||
|
||||
endif
|
||||
|
||||
@ -191,13 +191,18 @@ struct usb_xpad {
|
||||
unsigned char *idata; /* input data */
|
||||
dma_addr_t idata_dma;
|
||||
|
||||
#ifdef CONFIG_JOYSTICK_XPAD_FF
|
||||
#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
|
||||
struct urb *irq_out; /* urb for interrupt out report */
|
||||
unsigned char *odata; /* output data */
|
||||
dma_addr_t odata_dma;
|
||||
struct mutex odata_mutex;
|
||||
#endif
|
||||
|
||||
char phys[65]; /* physical device path */
|
||||
#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
|
||||
struct xpad_led *led;
|
||||
#endif
|
||||
|
||||
char phys[64]; /* physical device path */
|
||||
|
||||
int dpad_mapping; /* map d-pad to buttons or to axes */
|
||||
int xtype; /* type of xbox device */
|
||||
@ -349,7 +354,7 @@ exit:
|
||||
__FUNCTION__, retval);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_JOYSTICK_XPAD_FF
|
||||
#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
|
||||
static void xpad_irq_out(struct urb *urb)
|
||||
{
|
||||
int retval;
|
||||
@ -376,6 +381,60 @@ exit:
|
||||
__FUNCTION__, retval);
|
||||
}
|
||||
|
||||
static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
|
||||
{
|
||||
struct usb_endpoint_descriptor *ep_irq_out;
|
||||
int error = -ENOMEM;
|
||||
|
||||
if (xpad->xtype != XTYPE_XBOX360)
|
||||
return 0;
|
||||
|
||||
xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,
|
||||
GFP_ATOMIC, &xpad->odata_dma );
|
||||
if (!xpad->odata)
|
||||
goto fail1;
|
||||
|
||||
mutex_init(&xpad->odata_mutex);
|
||||
|
||||
xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
|
||||
if (!xpad->irq_out)
|
||||
goto fail2;
|
||||
|
||||
ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
|
||||
usb_fill_int_urb(xpad->irq_out, xpad->udev,
|
||||
usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
|
||||
xpad->odata, XPAD_PKT_LEN,
|
||||
xpad_irq_out, xpad, ep_irq_out->bInterval);
|
||||
xpad->irq_out->transfer_dma = xpad->odata_dma;
|
||||
xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
||||
|
||||
return 0;
|
||||
|
||||
fail2: usb_buffer_free(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
|
||||
fail1: return error;
|
||||
}
|
||||
|
||||
static void xpad_stop_output(struct usb_xpad *xpad)
|
||||
{
|
||||
if (xpad->xtype == XTYPE_XBOX360)
|
||||
usb_kill_urb(xpad->irq_out);
|
||||
}
|
||||
|
||||
static void xpad_deinit_output(struct usb_xpad *xpad)
|
||||
{
|
||||
if (xpad->xtype == XTYPE_XBOX360) {
|
||||
usb_free_urb(xpad->irq_out);
|
||||
usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
|
||||
xpad->odata, xpad->odata_dma);
|
||||
}
|
||||
}
|
||||
#else
|
||||
static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; }
|
||||
static void xpad_deinit_output(struct usb_xpad *xpad) {}
|
||||
static void xpad_stop_output(struct usb_xpad *xpad) {}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_JOYSTICK_XPAD_FF
|
||||
static int xpad_play_effect(struct input_dev *dev, void *data,
|
||||
struct ff_effect *effect)
|
||||
{
|
||||
@ -398,64 +457,101 @@ static int xpad_play_effect(struct input_dev *dev, void *data,
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int xpad_init_ff(struct usb_interface *intf, struct usb_xpad *xpad)
|
||||
static int xpad_init_ff(struct usb_xpad *xpad)
|
||||
{
|
||||
struct usb_endpoint_descriptor *ep_irq_out;
|
||||
int error = -ENOMEM;
|
||||
input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
|
||||
|
||||
return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
|
||||
}
|
||||
|
||||
#else
|
||||
static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
|
||||
#include <linux/leds.h>
|
||||
|
||||
struct xpad_led {
|
||||
char name[16];
|
||||
struct led_classdev led_cdev;
|
||||
struct usb_xpad *xpad;
|
||||
};
|
||||
|
||||
static void xpad_send_led_command(struct usb_xpad *xpad, int command)
|
||||
{
|
||||
if (command >= 0 && command < 14) {
|
||||
mutex_lock(&xpad->odata_mutex);
|
||||
xpad->odata[0] = 0x01;
|
||||
xpad->odata[1] = 0x03;
|
||||
xpad->odata[2] = command;
|
||||
usb_submit_urb(xpad->irq_out, GFP_KERNEL);
|
||||
mutex_unlock(&xpad->odata_mutex);
|
||||
}
|
||||
}
|
||||
|
||||
static void xpad_led_set(struct led_classdev *led_cdev,
|
||||
enum led_brightness value)
|
||||
{
|
||||
struct xpad_led *xpad_led = container_of(led_cdev,
|
||||
struct xpad_led, led_cdev);
|
||||
|
||||
xpad_send_led_command(xpad_led->xpad, value);
|
||||
}
|
||||
|
||||
static int xpad_led_probe(struct usb_xpad *xpad)
|
||||
{
|
||||
static atomic_t led_seq = ATOMIC_INIT(0);
|
||||
long led_no;
|
||||
struct xpad_led *led;
|
||||
struct led_classdev *led_cdev;
|
||||
int error;
|
||||
|
||||
if (xpad->xtype != XTYPE_XBOX360)
|
||||
return 0;
|
||||
|
||||
xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN,
|
||||
GFP_ATOMIC, &xpad->odata_dma );
|
||||
if (!xpad->odata)
|
||||
goto fail1;
|
||||
xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
|
||||
if (!led)
|
||||
return -ENOMEM;
|
||||
|
||||
xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
|
||||
if (!xpad->irq_out)
|
||||
goto fail2;
|
||||
led_no = (long)atomic_inc_return(&led_seq) - 1;
|
||||
|
||||
ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
|
||||
usb_fill_int_urb(xpad->irq_out, xpad->udev,
|
||||
usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
|
||||
xpad->odata, XPAD_PKT_LEN,
|
||||
xpad_irq_out, xpad, ep_irq_out->bInterval);
|
||||
xpad->irq_out->transfer_dma = xpad->odata_dma;
|
||||
xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
||||
snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
|
||||
led->xpad = xpad;
|
||||
|
||||
input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
|
||||
led_cdev = &led->led_cdev;
|
||||
led_cdev->name = led->name;
|
||||
led_cdev->brightness_set = xpad_led_set;
|
||||
|
||||
error = input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
|
||||
if (error)
|
||||
goto fail2;
|
||||
error = led_classdev_register(&xpad->udev->dev, led_cdev);
|
||||
if (error) {
|
||||
kfree(led);
|
||||
xpad->led = NULL;
|
||||
return error;
|
||||
}
|
||||
|
||||
/*
|
||||
* Light up the segment corresponding to controller number
|
||||
*/
|
||||
xpad_send_led_command(xpad, (led_no % 4) + 2);
|
||||
|
||||
return 0;
|
||||
|
||||
fail2: usb_buffer_free(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
|
||||
fail1: return error;
|
||||
}
|
||||
|
||||
static void xpad_stop_ff(struct usb_xpad *xpad)
|
||||
static void xpad_led_disconnect(struct usb_xpad *xpad)
|
||||
{
|
||||
if (xpad->xtype == XTYPE_XBOX360)
|
||||
usb_kill_urb(xpad->irq_out);
|
||||
}
|
||||
struct xpad_led *xpad_led = xpad->led;
|
||||
|
||||
static void xpad_deinit_ff(struct usb_xpad *xpad)
|
||||
{
|
||||
if (xpad->xtype == XTYPE_XBOX360) {
|
||||
usb_free_urb(xpad->irq_out);
|
||||
usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
|
||||
xpad->odata, xpad->odata_dma);
|
||||
if (xpad_led) {
|
||||
led_classdev_unregister(&xpad_led->led_cdev);
|
||||
kfree(xpad_led->name);
|
||||
}
|
||||
}
|
||||
|
||||
#else
|
||||
static int xpad_init_ff(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; }
|
||||
static void xpad_stop_ff(struct usb_xpad *xpad) { }
|
||||
static void xpad_deinit_ff(struct usb_xpad *xpad) { }
|
||||
static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
|
||||
static void xpad_led_disconnect(struct usb_xpad *xpad) { }
|
||||
#endif
|
||||
|
||||
|
||||
static int xpad_open(struct input_dev *dev)
|
||||
{
|
||||
struct usb_xpad *xpad = input_get_drvdata(dev);
|
||||
@ -472,7 +568,7 @@ static void xpad_close(struct input_dev *dev)
|
||||
struct usb_xpad *xpad = input_get_drvdata(dev);
|
||||
|
||||
usb_kill_urb(xpad->irq_in);
|
||||
xpad_stop_ff(xpad);
|
||||
xpad_stop_output(xpad);
|
||||
}
|
||||
|
||||
static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
|
||||
@ -564,10 +660,18 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
|
||||
for (i = 0; xpad_abs_pad[i] >= 0; i++)
|
||||
xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
|
||||
|
||||
error = xpad_init_ff(intf, xpad);
|
||||
error = xpad_init_output(intf, xpad);
|
||||
if (error)
|
||||
goto fail2;
|
||||
|
||||
error = xpad_init_ff(xpad);
|
||||
if (error)
|
||||
goto fail3;
|
||||
|
||||
error = xpad_led_probe(xpad);
|
||||
if (error)
|
||||
goto fail3;
|
||||
|
||||
ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
|
||||
usb_fill_int_urb(xpad->irq_in, udev,
|
||||
usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
|
||||
@ -578,12 +682,13 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
|
||||
|
||||
error = input_register_device(xpad->dev);
|
||||
if (error)
|
||||
goto fail3;
|
||||
goto fail4;
|
||||
|
||||
usb_set_intfdata(intf, xpad);
|
||||
return 0;
|
||||
|
||||
fail3: usb_free_urb(xpad->irq_in);
|
||||
fail4: usb_free_urb(xpad->irq_in);
|
||||
fail3: xpad_deinit_output(xpad);
|
||||
fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
|
||||
fail1: input_free_device(input_dev);
|
||||
kfree(xpad);
|
||||
@ -597,8 +702,9 @@ static void xpad_disconnect(struct usb_interface *intf)
|
||||
|
||||
usb_set_intfdata(intf, NULL);
|
||||
if (xpad) {
|
||||
xpad_led_disconnect(xpad);
|
||||
input_unregister_device(xpad->dev);
|
||||
xpad_deinit_ff(xpad);
|
||||
xpad_deinit_output(xpad);
|
||||
usb_free_urb(xpad->irq_in);
|
||||
usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
|
||||
xpad->idata, xpad->idata_dma);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user