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[media] exynos4-is: Fix format propagation on FIMC-IS-ISP subdev
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Ensure TRY formats are propagated from the sink pad to the source pads
of the FIMC-IS-ISP subdev and the TRY and ACTIVE formats are separated.

[mchehab@redhat.com: Whitespace cleanup]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungin.park@samsung.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Sylwester Nawrocki authored and Mauro Carvalho Chehab committed Jun 28, 2013
1 parent a055d97 commit 5cfaad6
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Showing 2 changed files with 66 additions and 29 deletions.
92 changes: 64 additions & 28 deletions drivers/media/platform/exynos4-is/fimc-isp.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -128,31 +128,28 @@ static int fimc_isp_subdev_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_format *fmt)
{
struct fimc_isp *isp = v4l2_get_subdevdata(sd);
struct fimc_is *is = fimc_isp_to_is(isp);
struct v4l2_mbus_framefmt *mf = &fmt->format;
struct v4l2_mbus_framefmt cur_fmt;

if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
mf = v4l2_subdev_get_try_format(fh, fmt->pad);
fmt->format = *mf;
*mf = *v4l2_subdev_get_try_format(fh, fmt->pad);
return 0;
}

mf->colorspace = V4L2_COLORSPACE_SRGB;

mutex_lock(&isp->subdev_lock);
__is_get_frame_size(is, &cur_fmt);

if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
/* full camera input frame size */
mf->width = cur_fmt.width + FIMC_ISP_CAC_MARGIN_WIDTH;
mf->height = cur_fmt.height + FIMC_ISP_CAC_MARGIN_HEIGHT;
mf->code = V4L2_MBUS_FMT_SGRBG10_1X10;
/* ISP OTF input image format */
*mf = isp->sink_fmt;
} else {
/* crop size */
mf->width = cur_fmt.width;
mf->height = cur_fmt.height;
mf->code = V4L2_MBUS_FMT_YUV10_1X30;
/* ISP OTF output image format */
*mf = isp->src_fmt;

if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
mf->colorspace = V4L2_COLORSPACE_JPEG;
mf->code = V4L2_MBUS_FMT_YUV10_1X30;
}
}

mutex_unlock(&isp->subdev_lock);
Expand All @@ -164,21 +161,37 @@ static int fimc_isp_subdev_get_fmt(struct v4l2_subdev *sd,
}

static void __isp_subdev_try_format(struct fimc_isp *isp,
struct v4l2_subdev_format *fmt)
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct v4l2_mbus_framefmt *mf = &fmt->format;
struct v4l2_mbus_framefmt *format;

mf->colorspace = V4L2_COLORSPACE_SRGB;

if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
v4l_bound_align_image(&mf->width, FIMC_ISP_SINK_WIDTH_MIN,
FIMC_ISP_SINK_WIDTH_MAX, 0,
&mf->height, FIMC_ISP_SINK_HEIGHT_MIN,
FIMC_ISP_SINK_HEIGHT_MAX, 0, 0);
isp->subdev_fmt = *mf;
mf->code = V4L2_MBUS_FMT_SGRBG10_1X10;
} else {
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
format = v4l2_subdev_get_try_format(fh,
FIMC_ISP_SD_PAD_SINK);
else
format = &isp->sink_fmt;

/* Allow changing format only on sink pad */
mf->width = isp->subdev_fmt.width - FIMC_ISP_CAC_MARGIN_WIDTH;
mf->height = isp->subdev_fmt.height - FIMC_ISP_CAC_MARGIN_HEIGHT;
mf->code = isp->subdev_fmt.code;
mf->width = format->width - FIMC_ISP_CAC_MARGIN_WIDTH;
mf->height = format->height - FIMC_ISP_CAC_MARGIN_HEIGHT;

if (fmt->pad == FIMC_ISP_SD_PAD_SRC_FIFO) {
mf->code = V4L2_MBUS_FMT_YUV10_1X30;
mf->colorspace = V4L2_COLORSPACE_JPEG;
} else {
mf->code = format->code;
}
}
}

Expand All @@ -194,24 +207,47 @@ static int fimc_isp_subdev_set_fmt(struct v4l2_subdev *sd,
isp_dbg(1, sd, "%s: pad%d: code: 0x%x, %dx%d\n",
__func__, fmt->pad, mf->code, mf->width, mf->height);

mf->colorspace = V4L2_COLORSPACE_SRGB;

mutex_lock(&isp->subdev_lock);
__isp_subdev_try_format(isp, fmt);
__isp_subdev_try_format(isp, fh, fmt);

if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
mf = v4l2_subdev_get_try_format(fh, fmt->pad);
*mf = fmt->format;
mutex_unlock(&isp->subdev_lock);
return 0;

/* Propagate format to the source pads */
if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
struct v4l2_subdev_format format = *fmt;
unsigned int pad;

for (pad = FIMC_ISP_SD_PAD_SRC_FIFO;
pad < FIMC_ISP_SD_PADS_NUM; pad++) {
format.pad = pad;
__isp_subdev_try_format(isp, fh, &format);
mf = v4l2_subdev_get_try_format(fh, pad);
*mf = format.format;
}
}
} else {
if (sd->entity.stream_count == 0) {
if (fmt->pad == FIMC_ISP_SD_PAD_SINK) {
struct v4l2_subdev_format format = *fmt;

isp->sink_fmt = *mf;

format.pad = FIMC_ISP_SD_PAD_SRC_DMA;
__isp_subdev_try_format(isp, fh, &format);

isp->src_fmt = format.format;
__is_set_frame_size(is, &isp->src_fmt);
} else {
isp->src_fmt = *mf;
}
} else {
ret = -EBUSY;
}
}

if (sd->entity.stream_count == 0)
__is_set_frame_size(is, mf);
else
ret = -EBUSY;
mutex_unlock(&isp->subdev_lock);

return ret;
}

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3 changes: 2 additions & 1 deletion drivers/media/platform/exynos4-is/fimc-isp.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -145,7 +145,8 @@ struct fimc_isp {
struct vb2_alloc_ctx *alloc_ctx;
struct v4l2_subdev subdev;
struct media_pad subdev_pads[FIMC_ISP_SD_PADS_NUM];
struct v4l2_mbus_framefmt subdev_fmt;
struct v4l2_mbus_framefmt src_fmt;
struct v4l2_mbus_framefmt sink_fmt;
struct v4l2_ctrl *test_pattern;
struct fimc_isp_ctrls ctrls;

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