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[media] sh-vou: let sh_vou_s_fmt_vid_out call sh_vou_try_fmt_vid_out 

This ensures that both do the same checks, and simplifies s_fmt_vid_out
a bit.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-06-07 05:58:03 -03:00 коммит произвёл Mauro Carvalho Chehab
Родитель 61fbacc115
Коммит 66853ec4e1
1 изменённых файлов: 40 добавлений и 46 удалений
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86
drivers/media/platform/sh_vou.c
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@ -673,34 +673,19 @@ static void vou_adjust_output(struct sh_vou_geometry *geo, v4l2_std_id std)
vou_scale_v_num[idx_v], vou_scale_v_den[idx_v], best);
}
static int sh_vou_s_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *fmt)
static int sh_vou_try_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *fmt)
{
struct sh_vou_device *vou_dev = video_drvdata(file);
struct v4l2_pix_format *pix = &fmt->fmt.pix;
unsigned int img_height_max;
int pix_idx;
struct sh_vou_geometry geo;
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
/* Revisit: is this the correct code? */
.format.code = MEDIA_BUS_FMT_YUYV8_2X8,
.format.field = V4L2_FIELD_INTERLACED,
.format.colorspace = V4L2_COLORSPACE_SMPTE170M,
};
struct v4l2_mbus_framefmt *mbfmt = &format.format;
int ret;
dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u -> %ux%u\n", __func__,
vou_dev->rect.width, vou_dev->rect.height,
pix->width, pix->height);
dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
if (pix->field == V4L2_FIELD_ANY)
pix->field = V4L2_FIELD_NONE;
if (fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT ||
pix->field != V4L2_FIELD_NONE)
return -EINVAL;
pix->field = V4L2_FIELD_INTERLACED;
pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
pix->ycbcr_enc = pix->quantization = 0;
for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++)
if (vou_fmt[pix_idx].pfmt == pix->pixelformat)
@ -714,9 +699,37 @@ static int sh_vou_s_fmt_vid_out(struct file *file, void *priv,
else
img_height_max = 576;
/* Image width must be a multiple of 4 */
v4l_bound_align_image(&pix->width, 0, VOU_MAX_IMAGE_WIDTH, 2,
&pix->height, 0, img_height_max, 1, 0);
pix->bytesperline = pix->width * 2;
return 0;
}
static int sh_vou_s_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *fmt)
{
struct sh_vou_device *vou_dev = video_drvdata(file);
struct v4l2_pix_format *pix = &fmt->fmt.pix;
unsigned int img_height_max;
struct sh_vou_geometry geo;
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
/* Revisit: is this the correct code? */
.format.code = MEDIA_BUS_FMT_YUYV8_2X8,
.format.field = V4L2_FIELD_INTERLACED,
.format.colorspace = V4L2_COLORSPACE_SMPTE170M,
};
struct v4l2_mbus_framefmt *mbfmt = &format.format;
int ret = sh_vou_try_fmt_vid_out(file, priv, fmt);
int pix_idx;
if (ret)
return ret;
for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++)
if (vou_fmt[pix_idx].pfmt == pix->pixelformat)
break;
geo.in_width = pix->width;
geo.in_height = pix->height;
@ -735,6 +748,11 @@ static int sh_vou_s_fmt_vid_out(struct file *file, void *priv,
dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u -> %ux%u\n", __func__,
geo.output.width, geo.output.height, mbfmt->width, mbfmt->height);
if (vou_dev->std & V4L2_STD_525_60)
img_height_max = 480;
else
img_height_max = 576;
/* Sanity checks */
if ((unsigned)mbfmt->width > VOU_MAX_IMAGE_WIDTH ||
(unsigned)mbfmt->height > img_height_max ||
@ -767,30 +785,6 @@ static int sh_vou_s_fmt_vid_out(struct file *file, void *priv,
return 0;
}
static int sh_vou_try_fmt_vid_out(struct file *file, void *priv,
struct v4l2_format *fmt)
{
struct sh_vou_device *vou_dev = video_drvdata(file);
struct v4l2_pix_format *pix = &fmt->fmt.pix;
int i;
dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__);
fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
pix->field = V4L2_FIELD_NONE;
v4l_bound_align_image(&pix->width, 0, VOU_MAX_IMAGE_WIDTH, 1,
&pix->height, 0, VOU_MAX_IMAGE_HEIGHT, 1, 0);
for (i = 0; i < ARRAY_SIZE(vou_fmt); i++)
if (vou_fmt[i].pfmt == pix->pixelformat)
return 0;
pix->pixelformat = vou_fmt[0].pfmt;
return 0;
}
static int sh_vou_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *req)
{