SH7724 datasheet specifies 480 pixels as the VOU maximum vertical resolution.
This is a bug in the datasheet, VOU also supports the full PAL resolution: 576
lines. Adjust the driver accordingly.
Signed-off-by: Guennadi Liakhovetski <g.liakhovet...@gmx.de>
---
drivers/media/video/sh_vou.c | 56 +++++++++++++++++++++++++----------------
1 files changed, 34 insertions(+), 22 deletions(-)
diff --git a/drivers/media/video/sh_vou.c b/drivers/media/video/sh_vou.c
index e9d5e6a..80351db 100644
--- a/drivers/media/video/sh_vou.c
+++ b/drivers/media/video/sh_vou.c
@@ -57,7 +57,7 @@ enum sh_vou_status {
};
#define VOU_MAX_IMAGE_WIDTH 720
-#define VOU_MAX_IMAGE_HEIGHT 480
+#define VOU_MAX_IMAGE_HEIGHT 576
struct sh_vou_device {
struct v4l2_device v4l2_dev;
@@ -527,20 +527,17 @@ struct sh_vou_geometry {
static void vou_adjust_input(struct sh_vou_geometry *geo, v4l2_std_id std)
{
/* The compiler cannot know, that best and idx will indeed be set */
- unsigned int best_err = UINT_MAX, best = 0, width_max, height_max;
+ unsigned int best_err = UINT_MAX, best = 0, img_height_max;
int i, idx = 0;
- if (std & V4L2_STD_525_60) {
- width_max = 858;
- height_max = 262;
- } else {
- width_max = 864;
- height_max = 312;
- }
+ if (std & V4L2_STD_525_60)
+ img_height_max = 480;
+ else
+ img_height_max = 576;
/* Image width must be a multiple of 4 */
v4l_bound_align_image(&geo->in_width, 0, VOU_MAX_IMAGE_WIDTH, 2,
- &geo->in_height, 0, VOU_MAX_IMAGE_HEIGHT, 1, 0);
+ &geo->in_height, 0, img_height_max, 1, 0);
/* Select scales to come as close as possible to the output image */
for (i = ARRAY_SIZE(vou_scale_h_num) - 1; i >= 0; i--) {
@@ -573,7 +570,7 @@ static void vou_adjust_input(struct sh_vou_geometry *geo,
v4l2_std_id std)
unsigned int found = geo->output.height * vou_scale_v_den[i] /
vou_scale_v_num[i];
- if (found > VOU_MAX_IMAGE_HEIGHT)
+ if (found > img_height_max)
/* scales increase */
break;
@@ -597,15 +594,18 @@ static void vou_adjust_input(struct sh_vou_geometry *geo,
v4l2_std_id std)
*/
static void vou_adjust_output(struct sh_vou_geometry *geo, v4l2_std_id std)
{
- unsigned int best_err = UINT_MAX, best, width_max, height_max;
+ unsigned int best_err = UINT_MAX, best, width_max, height_max,
+ img_height_max;
int i, idx;
if (std & V4L2_STD_525_60) {
width_max = 858;
height_max = 262 * 2;
+ img_height_max = 480;
} else {
width_max = 864;
height_max = 312 * 2;
+ img_height_max = 576;
}
/* Select scales to come as close as possible to the output image */
@@ -644,7 +644,7 @@ static void vou_adjust_output(struct sh_vou_geometry *geo,
v4l2_std_id std)
unsigned int found = geo->in_height * vou_scale_v_num[i] /
vou_scale_v_den[i];
- if (found > VOU_MAX_IMAGE_HEIGHT)
+ if (found > img_height_max)
/* scales increase */
break;
@@ -673,6 +673,7 @@ static int sh_vou_s_fmt_vid_out(struct file *file, void
*priv,
struct video_device *vdev = video_devdata(file);
struct sh_vou_device *vou_dev = video_get_drvdata(vdev);
struct v4l2_pix_format *pix = &fmt->fmt.pix;
+ unsigned int img_height_max;
int pix_idx;
struct sh_vou_geometry geo;
struct v4l2_mbus_framefmt mbfmt = {
@@ -701,9 +702,14 @@ static int sh_vou_s_fmt_vid_out(struct file *file, void
*priv,
if (pix_idx == ARRAY_SIZE(vou_fmt))
return -EINVAL;
+ if (vou_dev->std & V4L2_STD_525_60)
+ img_height_max = 480;
+ 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, VOU_MAX_IMAGE_HEIGHT, 1, 0);
+ &pix->height, 0, img_height_max, 1, 0);
geo.in_width = pix->width;
geo.in_height = pix->height;
@@ -724,7 +730,7 @@ static int sh_vou_s_fmt_vid_out(struct file *file, void
*priv,
/* Sanity checks */
if ((unsigned)mbfmt.width > VOU_MAX_IMAGE_WIDTH ||
- (unsigned)mbfmt.height > VOU_MAX_IMAGE_HEIGHT ||
+ (unsigned)mbfmt.height > img_height_max ||
mbfmt.code != V4L2_MBUS_FMT_YUYV8_2X8)
return -EIO;
@@ -940,6 +946,7 @@ static int sh_vou_s_crop(struct file *file, void *fh,
struct v4l2_crop *a)
.field = V4L2_FIELD_INTERLACED,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
};
+ unsigned int img_height_max;
int ret;
dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %u...@%u:%u\n", __func__,
@@ -948,14 +955,19 @@ static int sh_vou_s_crop(struct file *file, void *fh,
struct v4l2_crop *a)
if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
return -EINVAL;
+ if (vou_dev->std & V4L2_STD_525_60)
+ img_height_max = 480;
+ else
+ img_height_max = 576;
+
v4l_bound_align_image(&rect->width, 0, VOU_MAX_IMAGE_WIDTH, 1,
- &rect->height, 0, VOU_MAX_IMAGE_HEIGHT, 1, 0);
+ &rect->height, 0, img_height_max, 1, 0);
if (rect->width + rect->left > VOU_MAX_IMAGE_WIDTH)
rect->left = VOU_MAX_IMAGE_WIDTH - rect->width;
- if (rect->height + rect->top > VOU_MAX_IMAGE_HEIGHT)
- rect->top = VOU_MAX_IMAGE_HEIGHT - rect->height;
+ if (rect->height + rect->top > img_height_max)
+ rect->top = img_height_max - rect->height;
geo.output = *rect;
geo.in_width = pix->width;
@@ -980,7 +992,7 @@ static int sh_vou_s_crop(struct file *file, void *fh,
struct v4l2_crop *a)
/* Sanity checks */
if ((unsigned)mbfmt.width > VOU_MAX_IMAGE_WIDTH ||
- (unsigned)mbfmt.height > VOU_MAX_IMAGE_HEIGHT ||
+ (unsigned)mbfmt.height > img_height_max ||
mbfmt.code != V4L2_MBUS_FMT_YUYV8_2X8)
return -EIO;
@@ -1329,13 +1341,13 @@ static int __devinit sh_vou_probe(struct
platform_device *pdev)
rect->left = 0;
rect->top = 0;
rect->width = VOU_MAX_IMAGE_WIDTH;
- rect->height = VOU_MAX_IMAGE_HEIGHT;
+ rect->height = 480;
pix->width = VOU_MAX_IMAGE_WIDTH;
- pix->height = VOU_MAX_IMAGE_HEIGHT;
+ pix->height = 480;
pix->pixelformat = V4L2_PIX_FMT_YVYU;
pix->field = V4L2_FIELD_NONE;
pix->bytesperline = VOU_MAX_IMAGE_WIDTH * 2;
- pix->sizeimage = VOU_MAX_IMAGE_WIDTH * 2 *
VOU_MAX_IMAGE_HEIGHT;
+ pix->sizeimage = VOU_MAX_IMAGE_WIDTH * 2 * 480;
pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
region = request_mem_region(reg_res->start, resource_size(reg_res),
--
1.7.2
--
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