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Input: xpad - add Xbox360 gamepad rumble support

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Implementation is using force feedback support for memoryless devices.

Signed-off-by: Jan Kratochvil <honza@jikos.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Jan Kratochvil 2007-05-09 00:27:51 -04:00 committed by Dmitry Torokhov
parent c7d9f7eb30
commit e01a06e8df
2 changed files with 128 additions and 4 deletions
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7
drivers/input/joystick/Kconfig
View File

@ -268,4 +268,11 @@ config JOYSTICK_XPAD
To compile this driver as a module, choose M here: the
module will be called xpad.
config JOYSTICK_XPAD_FF
bool "X-Box gamepad rumble support"
depends on JOYSTICK_XPAD && INPUT
select INPUT_FF_MEMLESS
---help---
Say Y here if you want to take advantage of xbox 360 rumble features.
endif

125
drivers/input/joystick/xpad.c
View File

@ -191,6 +191,12 @@ struct usb_xpad {
unsigned char *idata; /* input data */
dma_addr_t idata_dma;
#ifdef CONFIG_JOYSTICK_XPAD_FF
struct urb *irq_out; /* urb for interrupt out report */
unsigned char *odata; /* output data */
dma_addr_t odata_dma;
#endif
char phys[65]; /* physical device path */
int dpad_mapping; /* map d-pad to buttons or to axes */
@ -343,7 +349,113 @@ exit:
__FUNCTION__, retval);
}
static int xpad_open (struct input_dev *dev)
#ifdef CONFIG_JOYSTICK_XPAD_FF
static void xpad_irq_out(struct urb *urb)
{
int retval;
switch (urb->status) {
case 0:
/* success */
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
return;
default:
dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
goto exit;
}
exit:
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval)
err("%s - usb_submit_urb failed with result %d",
__FUNCTION__, retval);
}
int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct usb_xpad *xpad = input_get_drvdata(dev);
if (effect->type == FF_RUMBLE) {
__u16 strong = effect->u.rumble.strong_magnitude;
__u16 weak = effect->u.rumble.weak_magnitude;
xpad->odata[0] = 0x00;
xpad->odata[1] = 0x08;
xpad->odata[2] = 0x00;
xpad->odata[3] = strong / 256;
xpad->odata[4] = weak / 256;
xpad->odata[5] = 0x00;
xpad->odata[6] = 0x00;
xpad->odata[7] = 0x00;
usb_submit_urb(xpad->irq_out, GFP_KERNEL);
}
return 0;
}
static int xpad_init_ff(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->idata)
goto fail1;
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;
input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
error = input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
if (error)
goto fail2;
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)
{
if (xpad->xtype == XTYPE_XBOX360)
usb_kill_urb(xpad->irq_out);
}
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);
}
}
#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) { }
#endif
static int xpad_open(struct input_dev *dev)
{
struct usb_xpad *xpad = input_get_drvdata(dev);
@ -354,11 +466,12 @@ static int xpad_open (struct input_dev *dev)
return 0;
}
static void xpad_close (struct input_dev *dev)
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);
}
static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
@ -450,6 +563,10 @@ 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);
if (error)
goto fail2;
ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
usb_fill_int_urb(xpad->irq_in, udev,
usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
@ -479,10 +596,10 @@ static void xpad_disconnect(struct usb_interface *intf)
usb_set_intfdata(intf, NULL);
if (xpad) {
usb_kill_urb(xpad->irq_in);
input_unregister_device(xpad->dev);
xpad_deinit_ff(xpad);
usb_free_urb(xpad->irq_in);
usb_buffer_free(interface_to_usbdev(intf), XPAD_PKT_LEN,
usb_buffer_free(xpad->udev, XPAD_PKT_LEN,
xpad->idata, xpad->idata_dma);
kfree(xpad);
}