diff options
Diffstat (limited to 'drivers/media/usb/s2255/s2255drv.c')
| -rw-r--r-- | drivers/media/usb/s2255/s2255drv.c | 73 |
1 files changed, 51 insertions, 22 deletions
diff --git a/drivers/media/usb/s2255/s2255drv.c b/drivers/media/usb/s2255/s2255drv.c index eaae9d167e76..59d40e614e94 100644 --- a/drivers/media/usb/s2255/s2255drv.c +++ b/drivers/media/usb/s2255/s2255drv.c @@ -1545,36 +1545,64 @@ static int vidioc_s_parm(struct file *file, void *priv, return 0; } +#define NUM_SIZE_ENUMS 3 +static const struct v4l2_frmsize_discrete ntsc_sizes[] = { + { 640, 480 }, + { 640, 240 }, + { 320, 240 }, +}; +static const struct v4l2_frmsize_discrete pal_sizes[] = { + { 704, 576 }, + { 704, 288 }, + { 352, 288 }, +}; + +static int vidioc_enum_framesizes(struct file *file, void *priv, + struct v4l2_frmsizeenum *fe) +{ + struct s2255_fh *fh = priv; + struct s2255_channel *channel = fh->channel; + int is_ntsc = channel->std & V4L2_STD_525_60; + const struct s2255_fmt *fmt; + + if (fe->index >= NUM_SIZE_ENUMS) + return -EINVAL; + + fmt = format_by_fourcc(fe->pixel_format); + if (fmt == NULL) + return -EINVAL; + fe->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fe->discrete = is_ntsc ? ntsc_sizes[fe->index] : pal_sizes[fe->index]; + return 0; +} + static int vidioc_enum_frameintervals(struct file *file, void *priv, struct v4l2_frmivalenum *fe) { - int is_ntsc = 0; + struct s2255_fh *fh = priv; + struct s2255_channel *channel = fh->channel; + const struct s2255_fmt *fmt; + const struct v4l2_frmsize_discrete *sizes; + int is_ntsc = channel->std & V4L2_STD_525_60; #define NUM_FRAME_ENUMS 4 int frm_dec[NUM_FRAME_ENUMS] = {1, 2, 3, 5}; + int i; + if (fe->index >= NUM_FRAME_ENUMS) return -EINVAL; - switch (fe->width) { - case 640: - if (fe->height != 240 && fe->height != 480) - return -EINVAL; - is_ntsc = 1; - break; - case 320: - if (fe->height != 240) - return -EINVAL; - is_ntsc = 1; - break; - case 704: - if (fe->height != 288 && fe->height != 576) - return -EINVAL; - break; - case 352: - if (fe->height != 288) - return -EINVAL; - break; - default: + + fmt = format_by_fourcc(fe->pixel_format); + if (fmt == NULL) return -EINVAL; - } + + sizes = is_ntsc ? ntsc_sizes : pal_sizes; + for (i = 0; i < NUM_SIZE_ENUMS; i++, sizes++) + if (fe->width == sizes->width && + fe->height == sizes->height) + break; + if (i == NUM_SIZE_ENUMS) + return -EINVAL; + fe->type = V4L2_FRMIVAL_TYPE_DISCRETE; fe->discrete.denominator = is_ntsc ? 30000 : 25000; fe->discrete.numerator = (is_ntsc ? 1001 : 1000) * frm_dec[fe->index]; @@ -1813,6 +1841,7 @@ static const struct v4l2_ioctl_ops s2255_ioctl_ops = { .vidioc_g_jpegcomp = vidioc_g_jpegcomp, .vidioc_s_parm = vidioc_s_parm, .vidioc_g_parm = vidioc_g_parm, + .vidioc_enum_framesizes = vidioc_enum_framesizes, .vidioc_enum_frameintervals = vidioc_enum_frameintervals, .vidioc_log_status = v4l2_ctrl_log_status, .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
