On Sun, 15 Mar 2009 22:29:48 +0000
Adam Baker <li...@baker-net.org.uk> wrote:
> Add support to the SQ-905 driver to pass back to user space the
> sensor orientation information obtained from the camera during init.
> Modifies gspca and the videodev2.h header to create the necessary
> API.
Please provide also the V4L2 specs change to include those new controls.
>
> Signed-off-by: Adam Baker <li...@baker-net.org.uk>
>
> ---
> diff -r 1248509d8bed linux/drivers/media/video/gspca/gspca.c
> --- a/linux/drivers/media/video/gspca/gspca.c Sat Mar 14 08:44:42 2009 +0100
> +++ b/linux/drivers/media/video/gspca/gspca.c Sun Mar 15 22:25:34 2009 +0000
> @@ -1147,6 +1147,7 @@ static int vidioc_enum_input(struct file
> if (input->index != 0)
> return -EINVAL;
> input->type = V4L2_INPUT_TYPE_CAMERA;
> + input->status = gspca_dev->input_flags;
> strncpy(input->name, gspca_dev->sd_desc->name,
> sizeof input->name);
> return 0;
> diff -r 1248509d8bed linux/drivers/media/video/gspca/gspca.h
> --- a/linux/drivers/media/video/gspca/gspca.h Sat Mar 14 08:44:42 2009 +0100
> +++ b/linux/drivers/media/video/gspca/gspca.h Sun Mar 15 22:25:34 2009 +0000
> @@ -168,6 +168,7 @@ struct gspca_dev {
> __u8 alt; /* USB alternate setting */
> __u8 nbalt; /* number of USB alternate settings */
> u8 bulk; /* image transfer by 0:isoc / 1:bulk */
> + u32 input_flags; /* value for ENUM_INPUT status flags */
> };
>
> int gspca_dev_probe(struct usb_interface *intf,
> diff -r 1248509d8bed linux/drivers/media/video/gspca/sq905.c
> --- a/linux/drivers/media/video/gspca/sq905.c Sat Mar 14 08:44:42 2009 +0100
> +++ b/linux/drivers/media/video/gspca/sq905.c Sun Mar 15 22:25:34 2009 +0000
> @@ -357,6 +357,12 @@ static int sd_init(struct gspca_dev *gsp
> gspca_dev->cam.nmodes = ARRAY_SIZE(sq905_mode);
> if (!(ident & SQ905_HIRES_MASK))
> gspca_dev->cam.nmodes--;
> +
> + if (ident & SQ905_ORIENTATION_MASK)
> + gspca_dev->input_flags = V4L2_IN_ST_VFLIP;
> + else
> + gspca_dev->input_flags = V4L2_IN_ST_VFLIP |
> + V4L2_IN_ST_HFLIP;
> return 0;
> }
>
> diff -r 1248509d8bed linux/include/linux/videodev2.h
> --- a/linux/include/linux/videodev2.h Sat Mar 14 08:44:42 2009 +0100
> +++ b/linux/include/linux/videodev2.h Sun Mar 15 22:25:34 2009 +0000
> @@ -736,6 +736,11 @@ struct v4l2_input {
> #define V4L2_IN_ST_NO_SIGNAL 0x00000002
> #define V4L2_IN_ST_NO_COLOR 0x00000004
>
> +/* field 'status' - sensor orientation */
> +/* If sensor is mounted upside down set both bits */
> +#define V4L2_IN_ST_HFLIP 0x00000010 /* Output is flipped horizontally
> */
> +#define V4L2_IN_ST_VFLIP 0x00000020 /* Output is flipped vertically */
> +
> /* field 'status' - analog */
> #define V4L2_IN_ST_NO_H_LOCK 0x00000100 /* No horizontal sync lock */
> #define V4L2_IN_ST_COLOR_KILL 0x00000200 /* Color killer is active */
> --
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Cheers,
Mauro
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