On Thu, Oct 01, 2015 at 10:57:16PM +0200, Pavel Rojtberg wrote:
> From: Pavel Rojtberg <rojtb...@gmail.com>
>
> Move submisson logic to a single point at the end of the function.
> This makes it easy to add locking/ queuing code later on.
>
> Signed-off-by: Pavel Rojtberg <rojtb...@gmail.com>
Applied, thank you.
> ---
> drivers/input/joystick/xpad.c | 140
> ++++++++++++++++++++++++++++++++---------------------------------
> 1 file changed, 69 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
> index a379346..1195dbb 100644
> --- a/drivers/input/joystick/xpad.c
> +++ b/drivers/input/joystick/xpad.c
> @@ -759,80 +759,78 @@ static void xpad_deinit_output(struct usb_xpad *xpad)
> static int xpad_play_effect(struct input_dev *dev, void *data, struct
> ff_effect *effect)
> {
> struct usb_xpad *xpad = input_get_drvdata(dev);
> + __u16 strong;
> + __u16 weak;
>
> - if (effect->type == FF_RUMBLE) {
> - __u16 strong = effect->u.rumble.strong_magnitude;
> - __u16 weak = effect->u.rumble.weak_magnitude;
> -
> - switch (xpad->xtype) {
> -
> - case XTYPE_XBOX:
> - xpad->odata[0] = 0x00;
> - xpad->odata[1] = 0x06;
> - xpad->odata[2] = 0x00;
> - xpad->odata[3] = strong / 256; /* left actuator */
> - xpad->odata[4] = 0x00;
> - xpad->odata[5] = weak / 256; /* right actuator */
> - xpad->irq_out->transfer_buffer_length = 6;
> -
> - return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
> -
> - case XTYPE_XBOX360:
> - xpad->odata[0] = 0x00;
> - xpad->odata[1] = 0x08;
> - xpad->odata[2] = 0x00;
> - xpad->odata[3] = strong / 256; /* left actuator? */
> - xpad->odata[4] = weak / 256; /* right actuator? */
> - xpad->odata[5] = 0x00;
> - xpad->odata[6] = 0x00;
> - xpad->odata[7] = 0x00;
> - xpad->irq_out->transfer_buffer_length = 8;
> -
> - return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
> -
> - case XTYPE_XBOX360W:
> - xpad->odata[0] = 0x00;
> - xpad->odata[1] = 0x01;
> - xpad->odata[2] = 0x0F;
> - xpad->odata[3] = 0xC0;
> - xpad->odata[4] = 0x00;
> - xpad->odata[5] = strong / 256;
> - xpad->odata[6] = weak / 256;
> - xpad->odata[7] = 0x00;
> - xpad->odata[8] = 0x00;
> - xpad->odata[9] = 0x00;
> - xpad->odata[10] = 0x00;
> - xpad->odata[11] = 0x00;
> - xpad->irq_out->transfer_buffer_length = 12;
> -
> - return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
> -
> - case XTYPE_XBOXONE:
> - xpad->odata[0] = 0x09; /* activate rumble */
> - xpad->odata[1] = 0x08;
> - xpad->odata[2] = 0x00;
> - xpad->odata[3] = 0x08; /* continuous effect */
> - xpad->odata[4] = 0x00; /* simple rumble mode */
> - xpad->odata[5] = 0x03; /* L and R actuator only */
> - xpad->odata[6] = 0x00; /* TODO: LT actuator */
> - xpad->odata[7] = 0x00; /* TODO: RT actuator */
> - xpad->odata[8] = strong / 256; /* left actuator */
> - xpad->odata[9] = weak / 256; /* right actuator */
> - xpad->odata[10] = 0x80; /* length of pulse */
> - xpad->odata[11] = 0x00; /* stop period of pulse */
> - xpad->irq_out->transfer_buffer_length = 12;
> -
> - return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
> -
> - default:
> - dev_dbg(&xpad->dev->dev,
> - "%s - rumble command sent to unsupported xpad
> type: %d\n",
> - __func__, xpad->xtype);
> - return -1;
> - }
> + if (effect->type != FF_RUMBLE)
> + return 0;
> +
> + strong = effect->u.rumble.strong_magnitude;
> + weak = effect->u.rumble.weak_magnitude;
> +
> + switch (xpad->xtype) {
> + case XTYPE_XBOX:
> + xpad->odata[0] = 0x00;
> + xpad->odata[1] = 0x06;
> + xpad->odata[2] = 0x00;
> + xpad->odata[3] = strong / 256; /* left actuator */
> + xpad->odata[4] = 0x00;
> + xpad->odata[5] = weak / 256; /* right actuator */
> + xpad->irq_out->transfer_buffer_length = 6;
> + break;
> +
> + case XTYPE_XBOX360:
> + xpad->odata[0] = 0x00;
> + xpad->odata[1] = 0x08;
> + xpad->odata[2] = 0x00;
> + xpad->odata[3] = strong / 256; /* left actuator? */
> + xpad->odata[4] = weak / 256; /* right actuator? */
> + xpad->odata[5] = 0x00;
> + xpad->odata[6] = 0x00;
> + xpad->odata[7] = 0x00;
> + xpad->irq_out->transfer_buffer_length = 8;
> + break;
> +
> + case XTYPE_XBOX360W:
> + xpad->odata[0] = 0x00;
> + xpad->odata[1] = 0x01;
> + xpad->odata[2] = 0x0F;
> + xpad->odata[3] = 0xC0;
> + xpad->odata[4] = 0x00;
> + xpad->odata[5] = strong / 256;
> + xpad->odata[6] = weak / 256;
> + xpad->odata[7] = 0x00;
> + xpad->odata[8] = 0x00;
> + xpad->odata[9] = 0x00;
> + xpad->odata[10] = 0x00;
> + xpad->odata[11] = 0x00;
> + xpad->irq_out->transfer_buffer_length = 12;
> + break;
> +
> + case XTYPE_XBOXONE:
> + xpad->odata[0] = 0x09; /* activate rumble */
> + xpad->odata[1] = 0x08;
> + xpad->odata[2] = 0x00;
> + xpad->odata[3] = 0x08; /* continuous effect */
> + xpad->odata[4] = 0x00; /* simple rumble mode */
> + xpad->odata[5] = 0x03; /* L and R actuator only */
> + xpad->odata[6] = 0x00; /* TODO: LT actuator */
> + xpad->odata[7] = 0x00; /* TODO: RT actuator */
> + xpad->odata[8] = strong / 256; /* left actuator */
> + xpad->odata[9] = weak / 256; /* right actuator */
> + xpad->odata[10] = 0x80; /* length of pulse */
> + xpad->odata[11] = 0x00; /* stop period of pulse */
> + xpad->irq_out->transfer_buffer_length = 12;
> + break;
> +
> + default:
> + dev_dbg(&xpad->dev->dev,
> + "%s - rumble command sent to unsupported xpad type:
> %d\n",
> + __func__, xpad->xtype);
> + return -EINVAL;
> }
>
> - return 0;
> + return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
> }
>
> static int xpad_init_ff(struct usb_xpad *xpad)
> --
> 1.9.1
>
--
Dmitry
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