diff options
author | Hans Verkuil <hans.verkuil@cisco.com> | 2013-04-13 18:06:00 +0200 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-04-16 23:08:13 +0200 |
commit | 988f7b80ab6e541aef5972d347d6cc7d905abd21 (patch) | |
tree | ae095e6e113218b3db3cf93a529ffc0065046333 /drivers/media | |
parent | [media] cx25821: switch to v4l2_fh, add event and prio handling (diff) | |
download | linux-988f7b80ab6e541aef5972d347d6cc7d905abd21.tar.xz linux-988f7b80ab6e541aef5972d347d6cc7d905abd21.zip |
[media] cx25821: g/s/try/enum_fmt related fixes and cleanups
- fill in colorspace
- zero priv
- delete unsupported formats
- fix field handling
- s_std should update width/height
- proper mapping of width/height to valid resolutions
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r-- | drivers/media/pci/cx25821/cx25821-video.c | 134 |
1 files changed, 32 insertions, 102 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-video.c b/drivers/media/pci/cx25821/cx25821-video.c index f82da1e69e60..aec6fdfe944d 100644 --- a/drivers/media/pci/cx25821/cx25821-video.c +++ b/drivers/media/pci/cx25821/cx25821-video.c @@ -54,11 +54,6 @@ MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes"); static const struct cx25821_fmt formats[] = { { - .name = "8 bpp, gray", - .fourcc = V4L2_PIX_FMT_GREY, - .depth = 8, - .flags = FORMAT_FLAGS_PACKED, - }, { .name = "4:1:1, packed, Y41P", .fourcc = V4L2_PIX_FMT_Y41P, .depth = 12, @@ -68,16 +63,6 @@ static const struct cx25821_fmt formats[] = { .fourcc = V4L2_PIX_FMT_YUYV, .depth = 16, .flags = FORMAT_FLAGS_PACKED, - }, { - .name = "4:2:2, packed, UYVY", - .fourcc = V4L2_PIX_FMT_UYVY, - .depth = 16, - .flags = FORMAT_FLAGS_PACKED, - }, { - .name = "4:2:0, YUV", - .fourcc = V4L2_PIX_FMT_YUV420, - .depth = 12, - .flags = FORMAT_FLAGS_PACKED, }, }; @@ -85,14 +70,9 @@ static const struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc) { unsigned int i; - if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P) - return formats + 1; - for (i = 0; i < ARRAY_SIZE(formats); i++) if (formats[i].fourcc == fourcc) return formats + i; - - pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc); return NULL; } @@ -381,8 +361,7 @@ static int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buff bpl_local = buf->bpl; /* Default */ if (chan->use_cif_resolution) { - if (dev->tvnorm & V4L2_STD_PAL_BG || - dev->tvnorm & V4L2_STD_PAL_DK) + if (dev->tvnorm & V4L2_STD_625_50) bpl_local = 352 << 1; else bpl_local = chan->cif_width << 1; @@ -612,8 +591,10 @@ static int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv, f->fmt.pix.height = chan->height; f->fmt.pix.field = chan->vidq.field; f->fmt.pix.pixelformat = chan->fmt->fourcc; - f->fmt.pix.bytesperline = (f->fmt.pix.width * chan->fmt->depth) >> 3; - f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; + f->fmt.pix.bytesperline = (chan->width * chan->fmt->depth) >> 3; + f->fmt.pix.sizeimage = chan->height * f->fmt.pix.bytesperline; + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + f->fmt.pix.priv = 0; return 0; } @@ -621,48 +602,39 @@ static int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv, static int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { + struct cx25821_channel *chan = video_drvdata(file); + struct cx25821_dev *dev = chan->dev; const struct cx25821_fmt *fmt; - enum v4l2_field field; + enum v4l2_field field = f->fmt.pix.field; unsigned int maxw, maxh; + unsigned w; fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat); if (NULL == fmt) return -EINVAL; - - field = f->fmt.pix.field; maxw = 720; - maxh = 576; - - if (V4L2_FIELD_ANY == field) { - if (f->fmt.pix.height > maxh / 2) - field = V4L2_FIELD_INTERLACED; - else - field = V4L2_FIELD_TOP; - } - - switch (field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - maxh = maxh / 2; - break; - case V4L2_FIELD_INTERLACED: - break; - default: - return -EINVAL; + maxh = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480; + + w = f->fmt.pix.width; + if (field != V4L2_FIELD_BOTTOM) + field = V4L2_FIELD_TOP; + if (w < 352) { + w = 176; + f->fmt.pix.height = maxh / 4; + } else if (w < 720) { + w = 352; + f->fmt.pix.height = maxh / 2; + } else { + w = 720; + f->fmt.pix.height = maxh; + field = V4L2_FIELD_INTERLACED; } - f->fmt.pix.field = field; - if (f->fmt.pix.height < 32) - f->fmt.pix.height = 32; - if (f->fmt.pix.height > maxh) - f->fmt.pix.height = maxh; - if (f->fmt.pix.width < 48) - f->fmt.pix.width = 48; - if (f->fmt.pix.width > maxw) - f->fmt.pix.width = maxw; - f->fmt.pix.width &= ~0x03; + f->fmt.pix.width = w; f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; + f->fmt.pix.priv = 0; return 0; } @@ -696,43 +668,6 @@ static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) return videobuf_streamoff(&chan->vidq); } -static int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm) -{ - if (tvnorm == V4L2_STD_PAL_BG) { - if (width == 352 || width == 720) - return 1; - else - return 0; - } - - if (tvnorm == V4L2_STD_NTSC_M) { - if (width == 320 || width == 352 || width == 720) - return 1; - else - return 0; - } - return 0; -} - -static int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm) -{ - if (tvnorm == V4L2_STD_PAL_BG) { - if (height == 576 || height == 288) - return 1; - else - return 0; - } - - if (tvnorm == V4L2_STD_NTSC_M) { - if (height == 480 || height == 240) - return 1; - else - return 0; - } - - return 0; -} - static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { @@ -749,20 +684,13 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, chan->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat); chan->vidq.field = f->fmt.pix.field; - - /* check if width and height is valid based on set standard */ - if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm)) - chan->width = f->fmt.pix.width; - - if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm)) - chan->height = f->fmt.pix.height; + chan->width = f->fmt.pix.width; + chan->height = f->fmt.pix.height; if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P) pix_format = PIXEL_FRMT_411; - else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) - pix_format = PIXEL_FRMT_422; else - return -EINVAL; + pix_format = PIXEL_FRMT_422; cx25821_set_pixel_format(dev, SRAM_CH00, pix_format); @@ -879,6 +807,8 @@ int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id tvnorms) return 0; cx25821_set_tvnorm(dev, tvnorms); + chan->width = 720; + chan->height = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480; medusa_set_videostandard(dev); |