V4L - Adding helper function to get dv preset description

Commit Message

Murali Karicheri Nov. 19, 2009, 4:11 p.m. UTC

None

Patch

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 = "480p@59.94",
+			.width = 720,
+			.height = 480,
+		},
+		{
+			.preset	= V4L2_DV_576P50,
+			.name = "576p@50",
+			.width = 720,
+			.height = 576,
+		},
+		{
+			.preset	= V4L2_DV_720P24,
+			.name = "720p@24",
+			.width = 1280,
+			.height = 720,
+		},
+		{
+			.preset	= V4L2_DV_720P25,
+			.name = "720p@25",
+			.width = 1280,
+			.height = 720,
+		},
+		{
+			.preset	= V4L2_DV_720P30,
+			.name = "720p@30",
+			.width = 1280,
+			.height = 720,
+		},
+		{
+			.preset	= V4L2_DV_720P50,
+			.name = "720p@50",
+			.width = 1280,
+			.height = 720,
+		},
+		{
+			.preset	= V4L2_DV_720P59_94,
+			.name = "720p@59.94",
+			.width = 1280,
+			.height = 720,
+		},
+		{
+			.preset	= V4L2_DV_720P60,
+			.name = "720p@60",
+			.width = 1280,
+			.height = 720,
+		},
+		{
+			.preset	= V4L2_DV_1080I29_97,
+			.name = "1080i@29.97",
+			.width = 1920,
+			.height = 1080,
+		},
+		{
+			.preset	= V4L2_DV_1080I30,
+			.name = "1080i@30",
+			.width = 1920,
+			.height = 1080,
+		},
+		{
+			.preset	= V4L2_DV_1080I25,
+			.name = "1080i@25",
+			.width = 1920,
+			.height = 1080,
+		},
+		{
+			.preset	= V4L2_DV_1080I50,
+			.name = "1080i@50",
+			.width = 1920,
+			.height = 1080,
+		},
+		{
+			.preset	= V4L2_DV_1080I60,
+			.name = "1080i@60",
+			.width = 1920,
+			.height = 1080,
+		},
+		{
+			.preset	= V4L2_DV_1080P24,
+			.name = "1080p@24",
+			.width = 1920,
+			.height = 1080,
+		},
+		{
+			.preset	= V4L2_DV_1080P25,
+			.name = "1080p@25",
+			.width = 1920,
+			.height = 1080,
+		},
+		{
+			.preset	= V4L2_DV_1080P30,
+			.name = "1080p@30",
+			.width = 1920,
+			.height = 1080,
+		},
+		{
+			.preset	= V4L2_DV_1080P50,
+			.name = "1080p@50",
+			.width = 1920,
+			.height = 1080,
+		},
+		{
+			.preset	= V4L2_DV_1080P60,
+			.name = "1080p@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_ */