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author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2010-07-29 07:11:42 (GMT) |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-02 19:43:41 (GMT) |
commit | 765fe17c4f018c019f1976455084f528474fc7f8 (patch) | |
tree | 0e89b01240a58022beeb8ea532e9d3c683deb7a1 /drivers/media | |
parent | b3b5020d8c12037f030242aab8e272148bf1f472 (diff) | |
download | linux-765fe17c4f018c019f1976455084f528474fc7f8.tar.xz |
V4L/DVB: V4L2: sh_vou: VOU does support the full PAL resolution too
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.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r-- | 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 3869d51..d394187 100644 --- a/drivers/media/video/sh_vou.c +++ b/drivers/media/video/sh_vou.c @@ -58,7 +58,7 @@ 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; @@ -528,20 +528,17 @@ 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--) { @@ -574,7 +571,7 @@ 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; @@ -598,15 +595,18 @@ 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 */ @@ -645,7 +645,7 @@ 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; @@ -674,6 +674,7 @@ 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 = { @@ -702,9 +703,14 @@ 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; @@ -725,7 +731,7 @@ 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; @@ -941,6 +947,7 @@ 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(): %ux%u@%u:%u\n", __func__, @@ -949,14 +956,19 @@ 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; @@ -981,7 +993,7 @@ 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; @@ -1330,13 +1342,13 @@ 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), |