Input: xpad - add Xbox360 gamepad rumble support
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>
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index f21f84a..0c04a26 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -191,6 +191,12 @@
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 @@
__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 @@
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 @@
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 @@
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);
}