提交 2e535ed5 编写于 作者: M Muralidharan Karicheri 提交者: Mauro Carvalho Chehab

V4L/DVB (13618): v4l2: Adding helper function to get dv preset description

This patch adds a helper function to get description of a digital
video preset added by the video timing API. This will be useful for drivers
implementing the above API.
Signed-off-by: NMuralidharan Karicheri <m-karicheri2@ti.com>
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
上级 579e7d60
master alk-4.19.24 alk-4.19.30 alk-4.19.34 alk-4.19.36 alk-4.19.43 alk-4.19.48 alk-4.19.57 ck-4.19.67 ck-4.19.81 ck-4.19.91 github/fork/deepanshu1422/fix-typo-in-comment github/fork/haosdent/fix-typo linux-next v4.19.91 v4.19.90 v4.19.89 v4.19.88 v4.19.87 v4.19.86 v4.19.85 v4.19.84 v4.19.83 v4.19.82 v4.19.81 v4.19.80 v4.19.79 v4.19.78 v4.19.77 v4.19.76 v4.19.75 v4.19.74 v4.19.73 v4.19.72 v4.19.71 v4.19.70 v4.19.69 v4.19.68 v4.19.67 v4.19.66 v4.19.65 v4.19.64 v4.19.63 v4.19.62 v4.19.61 v4.19.60 v4.19.59 v4.19.58 v4.19.57 v4.19.56 v4.19.55 v4.19.54 v4.19.53 v4.19.52 v4.19.51 v4.19.50 v4.19.49 v4.19.48 v4.19.47 v4.19.46 v4.19.45 v4.19.44 v4.19.43 v4.19.42 v4.19.41 v4.19.40 v4.19.39 v4.19.38 v4.19.37 v4.19.36 v4.19.35 v4.19.34 v4.19.33 v4.19.32 v4.19.31 v4.19.30 v4.19.29 v4.19.28 v4.19.27 v4.19.26 v4.19.25 v4.19.24 v4.19.23 v4.19.22 v4.19.21 v4.19.20 v4.19.19 v4.19.18 v4.19.17 v4.19.16 v4.19.15 v4.19.14 v4.19.13 v4.19.12 v4.19.11 v4.19.10 v4.19.9 v4.19.8 v4.19.7 v4.19.6 v4.19.5 v4.19.4 v4.19.3 v4.19.2 v4.19.1 v4.19 v4.19-rc8 v4.19-rc7 v4.19-rc6 v4.19-rc5 v4.19-rc4 v4.19-rc3 v4.19-rc2 v4.19-rc1 ck-release-21 ck-release-20 ck-release-19.2 ck-release-19.1 ck-release-19 ck-release-18 ck-release-17.2 ck-release-17.1 ck-release-17 ck-release-16 ck-release-15.1 ck-release-15 ck-release-14 ck-release-13.2 ck-release-13 ck-release-12 ck-release-11 ck-release-10 ck-release-9 ck-release-7 alk-release-15 alk-release-14 alk-release-13.2 alk-release-13 alk-release-12 alk-release-11 alk-release-10 alk-release-9 alk-release-7
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......@@ -1024,3 +1024,50 @@ void v4l_bound_align_image(u32 *w, unsigned int wmin, unsigned int wmax,
}
}
EXPORT_SYMBOL_GPL(v4l_bound_align_image);
/**
* v4l_fill_dv_preset_info - fill description of a digital video preset
* @preset - preset value
* @info - pointer to struct v4l2_dv_enum_preset
*
* drivers can use this helper function to fill description of dv preset
* in info.
*/
int v4l_fill_dv_preset_info(u32 preset, struct v4l2_dv_enum_preset *info)
{
static const struct v4l2_dv_preset_info {
u16 width;
u16 height;
const char *name;
} dv_presets[] = {
{ 0, 0, "Invalid" }, /* V4L2_DV_INVALID */
{ 720, 480, "480p@59.94" }, /* V4L2_DV_480P59_94 */
{ 720, 576, "576p@50" }, /* V4L2_DV_576P50 */
{ 1280, 720, "720p@24" }, /* V4L2_DV_720P24 */
{ 1280, 720, "720p@25" }, /* V4L2_DV_720P25 */
{ 1280, 720, "720p@30" }, /* V4L2_DV_720P30 */
{ 1280, 720, "720p@50" }, /* V4L2_DV_720P50 */
{ 1280, 720, "720p@59.94" }, /* V4L2_DV_720P59_94 */
{ 1280, 720, "720p@60" }, /* V4L2_DV_720P60 */
{ 1920, 1080, "1080i@29.97" }, /* V4L2_DV_1080I29_97 */
{ 1920, 1080, "1080i@30" }, /* V4L2_DV_1080I30 */
{ 1920, 1080, "1080i@25" }, /* V4L2_DV_1080I25 */
{ 1920, 1080, "1080i@50" }, /* V4L2_DV_1080I50 */
{ 1920, 1080, "1080i@60" }, /* V4L2_DV_1080I60 */
{ 1920, 1080, "1080p@24" }, /* V4L2_DV_1080P24 */
{ 1920, 1080, "1080p@25" }, /* V4L2_DV_1080P25 */
{ 1920, 1080, "1080p@30" }, /* V4L2_DV_1080P30 */
{ 1920, 1080, "1080p@50" }, /* V4L2_DV_1080P50 */
{ 1920, 1080, "1080p@60" }, /* V4L2_DV_1080P60 */
};
if (info == NULL || preset >= ARRAY_SIZE(dv_presets))
return -EINVAL;
info->preset = preset;
info->width = dv_presets[preset].width;
info->height = dv_presets[preset].height;
strlcpy(info->name, dv_presets[preset].name, sizeof(info->name));
return 0;
}
EXPORT_SYMBOL_GPL(v4l_fill_dv_preset_info);
......@@ -212,5 +212,5 @@ void v4l_bound_align_image(unsigned int *w, unsigned int wmin,
unsigned int *h, unsigned int hmin,
unsigned int hmax, unsigned int halign,
unsigned int salign);
int v4l_fill_dv_preset_info(u32 preset, struct v4l2_dv_enum_preset *info);
#endif /* V4L2_COMMON_H_ */
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