diff options
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/joystick/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/input/joystick/xpad.c | 125 |
2 files changed, 128 insertions, 4 deletions
diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig index b0023452ec9..12db72d83ea 100644 --- a/drivers/input/joystick/Kconfig +++ b/drivers/input/joystick/Kconfig @@ -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 diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index f21f84a2dff..0c04a26b812 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -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); } |