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authorHans Verkuil <hverkuil@xs4all.nl>2010-05-09 09:54:58 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-06-01 01:20:32 -0300
commite17ad1de031f2d5cade70eb0469a53f17d90d7c2 (patch)
tree5acfba0d71d91c05202d6814cfb803a75ad2c0ce /drivers/media/video
parent475977ac3db72c008f5aaa5f19bd991b72f26e42 (diff)
downloadlinux-2.6.38-lt-ux500-e17ad1de031f2d5cade70eb0469a53f17d90d7c2.tar.gz
V4L/DVB: cx18: add s_mbus_fmt support
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video')
-rw-r--r--drivers/media/video/cx18/cx18-av-core.c126
1 files changed, 69 insertions, 57 deletions
diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c
index 0e5006b1427..39f484621a4 100644
--- a/drivers/media/video/cx18/cx18-av-core.c
+++ b/drivers/media/video/cx18/cx18-av-core.c
@@ -1028,80 +1028,91 @@ static int cx18_av_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
return cx18_av_g_sliced_fmt(sd, &fmt->fmt.sliced);
}
-static int cx18_av_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
+static int cx18_av_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *fmt)
{
struct cx18_av_state *state = to_cx18_av_state(sd);
struct cx18 *cx = v4l2_get_subdevdata(sd);
-
- struct v4l2_pix_format *pix;
int HSC, VSC, Vsrc, Hsrc, filter, Vlines;
int is_50Hz = !(state->std & V4L2_STD_525_60);
- switch (fmt->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- pix = &(fmt->fmt.pix);
+ if (fmt->code != V4L2_MBUS_FMT_FIXED)
+ return -EINVAL;
- Vsrc = (cx18_av_read(cx, 0x476) & 0x3f) << 4;
- Vsrc |= (cx18_av_read(cx, 0x475) & 0xf0) >> 4;
+ fmt->field = V4L2_FIELD_INTERLACED;
+ fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
- Hsrc = (cx18_av_read(cx, 0x472) & 0x3f) << 4;
- Hsrc |= (cx18_av_read(cx, 0x471) & 0xf0) >> 4;
+ Vsrc = (cx18_av_read(cx, 0x476) & 0x3f) << 4;
+ Vsrc |= (cx18_av_read(cx, 0x475) & 0xf0) >> 4;
- /*
- * This adjustment reflects the excess of vactive, set in
- * cx18_av_std_setup(), above standard values:
- *
- * 480 + 1 for 60 Hz systems
- * 576 + 3 for 50 Hz systems
- */
- Vlines = pix->height + (is_50Hz ? 3 : 1);
+ Hsrc = (cx18_av_read(cx, 0x472) & 0x3f) << 4;
+ Hsrc |= (cx18_av_read(cx, 0x471) & 0xf0) >> 4;
- /*
- * Invalid height and width scaling requests are:
- * 1. width less than 1/16 of the source width
- * 2. width greater than the source width
- * 3. height less than 1/8 of the source height
- * 4. height greater than the source height
- */
- if ((pix->width * 16 < Hsrc) || (Hsrc < pix->width) ||
- (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
- CX18_ERR_DEV(sd, "%dx%d is not a valid size!\n",
- pix->width, pix->height);
- return -ERANGE;
- }
+ /*
+ * This adjustment reflects the excess of vactive, set in
+ * cx18_av_std_setup(), above standard values:
+ *
+ * 480 + 1 for 60 Hz systems
+ * 576 + 3 for 50 Hz systems
+ */
+ Vlines = fmt->height + (is_50Hz ? 3 : 1);
- HSC = (Hsrc * (1 << 20)) / pix->width - (1 << 20);
- VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
- VSC &= 0x1fff;
+ /*
+ * Invalid height and width scaling requests are:
+ * 1. width less than 1/16 of the source width
+ * 2. width greater than the source width
+ * 3. height less than 1/8 of the source height
+ * 4. height greater than the source height
+ */
+ if ((fmt->width * 16 < Hsrc) || (Hsrc < fmt->width) ||
+ (Vlines * 8 < Vsrc) || (Vsrc < Vlines)) {
+ CX18_ERR_DEV(sd, "%dx%d is not a valid size!\n",
+ fmt->width, fmt->height);
+ return -ERANGE;
+ }
- if (pix->width >= 385)
- filter = 0;
- else if (pix->width > 192)
- filter = 1;
- else if (pix->width > 96)
- filter = 2;
- else
- filter = 3;
+ HSC = (Hsrc * (1 << 20)) / fmt->width - (1 << 20);
+ VSC = (1 << 16) - (Vsrc * (1 << 9) / Vlines - (1 << 9));
+ VSC &= 0x1fff;
- CX18_DEBUG_INFO_DEV(sd,
- "decoder set size %dx%d -> scale %ux%u\n",
- pix->width, pix->height, HSC, VSC);
-
- /* HSCALE=HSC */
- cx18_av_write(cx, 0x418, HSC & 0xff);
- cx18_av_write(cx, 0x419, (HSC >> 8) & 0xff);
- cx18_av_write(cx, 0x41a, HSC >> 16);
- /* VSCALE=VSC */
- cx18_av_write(cx, 0x41c, VSC & 0xff);
- cx18_av_write(cx, 0x41d, VSC >> 8);
- /* VS_INTRLACE=1 VFILT=filter */
- cx18_av_write(cx, 0x41e, 0x8 | filter);
- break;
+ if (fmt->width >= 385)
+ filter = 0;
+ else if (fmt->width > 192)
+ filter = 1;
+ else if (fmt->width > 96)
+ filter = 2;
+ else
+ filter = 3;
+
+ CX18_DEBUG_INFO_DEV(sd,
+ "decoder set size %dx%d -> scale %ux%u\n",
+ fmt->width, fmt->height, HSC, VSC);
+
+ /* HSCALE=HSC */
+ cx18_av_write(cx, 0x418, HSC & 0xff);
+ cx18_av_write(cx, 0x419, (HSC >> 8) & 0xff);
+ cx18_av_write(cx, 0x41a, HSC >> 16);
+ /* VSCALE=VSC */
+ cx18_av_write(cx, 0x41c, VSC & 0xff);
+ cx18_av_write(cx, 0x41d, VSC >> 8);
+ /* VS_INTRLACE=1 VFILT=filter */
+ cx18_av_write(cx, 0x41e, 0x8 | filter);
+ return 0;
+}
+
+static int cx18_av_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
+{
+ struct v4l2_mbus_framefmt mbus_fmt;
+
+ switch (fmt->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ mbus_fmt.width = fmt->fmt.pix.width;
+ mbus_fmt.height = fmt->fmt.pix.height;
+ mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
+ return cx18_av_s_mbus_fmt(sd, &mbus_fmt);
default:
return -EINVAL;
}
- return 0;
}
static int cx18_av_s_stream(struct v4l2_subdev *sd, int enable)
@@ -1400,6 +1411,7 @@ static const struct v4l2_subdev_video_ops cx18_av_video_ops = {
.s_stream = cx18_av_s_stream,
.g_fmt = cx18_av_g_fmt,
.s_fmt = cx18_av_s_fmt,
+ .s_mbus_fmt = cx18_av_s_mbus_fmt,
};
static const struct v4l2_subdev_vbi_ops cx18_av_vbi_ops = {