diff options
| author | Luc Saillard <luc@saillard.org> | 2007-04-22 23:54:36 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-04-27 15:45:50 -0300 |
| commit | 9ee6d78cd4112c0f5a257a01383c64dadbf66da9 (patch) | |
| tree | 6a240c9938d7970c5d13c40dcc21b20fb3c3369e /drivers/media/video/pwc/pwc-v4l.c | |
| parent | 1de69238111a65283a4548d8fd4727397873a02f (diff) | |
V4L/DVB (5547): Add ENUM_FRAMESIZES and ENUM_FRAMEINTERVALS ioctls
This patch add support for the VIDIOC_ENUM_FRAMESIZES and
VIDIOC_ENUM_FRAMEINTERVALS ioctl.
* check if the maximum native framesize for raw mode is correct
* raw mode framerates for all three chipset types
Signed-off-by: Gregor Jasny <gjasny@web.de>
Signed-off-by: Luc Saillard <luc@saillard.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/pwc/pwc-v4l.c')
| -rw-r--r-- | drivers/media/video/pwc/pwc-v4l.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c index d5e6bc85064..e20251d05bf 100644 --- a/drivers/media/video/pwc/pwc-v4l.c +++ b/drivers/media/video/pwc/pwc-v4l.c @@ -1193,6 +1193,64 @@ int pwc_video_do_ioctl(struct inode *inode, struct file *file, return 0; } + case VIDIOC_ENUM_FRAMESIZES: + { + struct v4l2_frmsizeenum *fsize = arg; + unsigned int i = 0, index = fsize->index; + + if (fsize->pixel_format == V4L2_PIX_FMT_YUV420) { + for (i = 0; i < PSZ_MAX; i++) { + if (pdev->image_mask & (1UL << i)) { + if (!index--) { + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete.width = pwc_image_sizes[i].x; + fsize->discrete.height = pwc_image_sizes[i].y; + return 0; + } + } + } + } else if (fsize->index == 0 && + ((fsize->pixel_format == V4L2_PIX_FMT_PWC1 && DEVICE_USE_CODEC1(pdev->type)) || + (fsize->pixel_format == V4L2_PIX_FMT_PWC2 && DEVICE_USE_CODEC23(pdev->type)))) { + + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete.width = pdev->abs_max.x; + fsize->discrete.height = pdev->abs_max.y; + return 0; + } + return -EINVAL; + } + + case VIDIOC_ENUM_FRAMEINTERVALS: + { + struct v4l2_frmivalenum *fival = arg; + int size = -1; + unsigned int i; + + for (i = 0; i < PSZ_MAX; i++) { + if (pwc_image_sizes[i].x == fival->width && + pwc_image_sizes[i].y == fival->height) { + size = i; + break; + } + } + + /* TODO: Support raw format */ + if (size < 0 || fival->pixel_format != V4L2_PIX_FMT_YUV420) { + return -EINVAL; + } + + i = pwc_get_fps(pdev, fival->index, size); + if (!i) + return -EINVAL; + + fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; + fival->discrete.numerator = 1; + fival->discrete.denominator = i; + + return 0; + } + default: return pwc_ioctl(pdev, cmd, arg); } /* ..switch */ |