Whole series (after including bt image fix):
Tested-By: Przemo Firszt <przemo@xxxxxxxxx>
Dnia 2014-07-25, pią o godzinie 19:20 -0400, Benjamin Tissoires pisze:
> Bluetooth Intuos 4 use 1-bit definition while the USB ones use a 4-bits
> definition. This changes the size of the raw image we receive, and thus
> the kernel will only accept 1-bit images for Bluetooth and 4-bits for
> USB.
>
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> ---
> drivers/hid/wacom_sys.c | 15 +++++++++------
> 1 file changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
> index 3adc6ef..42f139f 100644
> --- a/drivers/hid/wacom_sys.c
> +++ b/drivers/hid/wacom_sys.c
> @@ -531,12 +531,14 @@ static int wacom_led_control(struct wacom *wacom)
> return retval;
> }
>
> -static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img)
> +static int wacom_led_putimage(struct wacom *wacom, int button_id,
> + const unsigned len, const void *img)
> {
> unsigned char *buf;
> int i, retval;
> + const unsigned chunk_len = len / 4; /* 4 chunks are needed to be sent */
>
> - buf = kzalloc(259, GFP_KERNEL);
> + buf = kzalloc(chunk_len + 3 , GFP_KERNEL);
> if (!buf)
> return -ENOMEM;
>
> @@ -552,11 +554,11 @@ static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *im
> buf[1] = button_id & 0x07;
> for (i = 0; i < 4; i++) {
> buf[2] = i;
> - memcpy(buf + 3, img + i * 256, 256);
> + memcpy(buf + 3, img + i * chunk_len, chunk_len);
>
> retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT,
> WAC_CMD_ICON_XFER,
> - buf, 259, WAC_CMD_RETRIES);
> + buf, chunk_len + 3, WAC_CMD_RETRIES);
> if (retval < 0)
> break;
> }
> @@ -657,13 +659,14 @@ static ssize_t wacom_button_image_store(struct device *dev, int button_id,
> struct hid_device *hdev = container_of(dev, struct hid_device, dev);
> struct wacom *wacom = hid_get_drvdata(hdev);
> int err;
> + const unsigned len = hdev->bus == BUS_BLUETOOTH ? 256 : 1024;
>
> - if (count != 1024)
> + if (count != len)
> return -EINVAL;
>
> mutex_lock(&wacom->lock);
>
> - err = wacom_led_putimage(wacom, button_id, buf);
> + err = wacom_led_putimage(wacom, button_id, len, buf);
>
> mutex_unlock(&wacom->lock);
>
--
Kind regards,
Przemo Firszt
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