From: Muralidharan Karicheri <m-kariche...@ti.com>
Forgot the V4L prefix in subject. Resending it...
This patch add a helper function to get description of a digital
video preset added by the video timing API. Hope this will be
usefull for drivers implementing the above API.
Signed-off-by: Muralidharan Karicheri <m-kariche...@ti.com>
NOTE: depends on the patch that adds video timing API.
---
Applies to V4L-DVB linux-next branch
drivers/media/video/v4l2-common.c | 135 +++++++++++++++++++++++++++++++++++++
include/media/v4l2-common.h | 1 +
2 files changed, 136 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/v4l2-common.c
b/drivers/media/video/v4l2-common.c
index f5a93ae..245e727 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -1015,3 +1015,138 @@ 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_enum_preset dv_presets[] = {
+ {
+ .preset = V4L2_DV_480P59_94,
+ .name = "4...@59.94",
+ .width = 720,
+ .height = 480,
+ },
+ {
+ .preset = V4L2_DV_576P50,
+ .name = "5...@50",
+ .width = 720,
+ .height = 576,
+ },
+ {
+ .preset = V4L2_DV_720P24,
+ .name = "7...@24",
+ .width = 1280,
+ .height = 720,
+ },
+ {
+ .preset = V4L2_DV_720P25,
+ .name = "7...@25",
+ .width = 1280,
+ .height = 720,
+ },
+ {
+ .preset = V4L2_DV_720P30,
+ .name = "7...@30",
+ .width = 1280,
+ .height = 720,
+ },
+ {
+ .preset = V4L2_DV_720P50,
+ .name = "7...@50",
+ .width = 1280,
+ .height = 720,
+ },
+ {
+ .preset = V4L2_DV_720P59_94,
+ .name = "7...@59.94",
+ .width = 1280,
+ .height = 720,
+ },
+ {
+ .preset = V4L2_DV_720P60,
+ .name = "7...@60",
+ .width = 1280,
+ .height = 720,
+ },
+ {
+ .preset = V4L2_DV_1080I29_97,
+ .name = "10...@29.97",
+ .width = 1920,
+ .height = 1080,
+ },
+ {
+ .preset = V4L2_DV_1080I30,
+ .name = "10...@30",
+ .width = 1920,
+ .height = 1080,
+ },
+ {
+ .preset = V4L2_DV_1080I25,
+ .name = "10...@25",
+ .width = 1920,
+ .height = 1080,
+ },
+ {
+ .preset = V4L2_DV_1080I50,
+ .name = "10...@50",
+ .width = 1920,
+ .height = 1080,
+ },
+ {
+ .preset = V4L2_DV_1080I60,
+ .name = "10...@60",
+ .width = 1920,
+ .height = 1080,
+ },
+ {
+ .preset = V4L2_DV_1080P24,
+ .name = "10...@24",
+ .width = 1920,
+ .height = 1080,
+ },
+ {
+ .preset = V4L2_DV_1080P25,
+ .name = "10...@25",
+ .width = 1920,
+ .height = 1080,
+ },
+ {
+ .preset = V4L2_DV_1080P30,
+ .name = "10...@30",
+ .width = 1920,
+ .height = 1080,
+ },
+ {
+ .preset = V4L2_DV_1080P50,
+ .name = "10...@50",
+ .width = 1920,
+ .height = 1080,
+ },
+ {
+ .preset = V4L2_DV_1080P60,
+ .name = "10...@60",
+ .width = 1920,
+ .height = 1080,
+ },
+ };
+ int i;
+
+ if (info == NULL)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(dv_presets); i++) {
+ if (preset == dv_presets[i].preset) {
+ memcpy(info, &dv_presets[i], sizeof(*info));
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(v4l_fill_dv_preset_info);
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 1c25b10..ddc040f 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -213,4 +213,5 @@ void v4l_bound_align_image(unsigned int *w, unsigned int
wmin,
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_ */
--
1.6.0.4
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