[media] V4L: soc-camera: add a new packing for YUV 4:2:0 type formats
12-bit formats, similar to YUV 4:2:0 occupy 3 bytes for each two pixels
and cannot be described by any of the existing SOC_MBUS_PACKING_* macros.
This patch adds a new one SOC_MBUS_PACKING_1_5X8 to describe such
formats and extends soc_mbus_samples_per_pixel() to support it.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/media/soc_mediabus.h b/include/media/soc_mediabus.h
index 3eed98e..fae4325 100644
--- a/include/media/soc_mediabus.h
+++ b/include/media/soc_mediabus.h
@@ -16,12 +16,16 @@
/**
* enum soc_mbus_packing - data packing types on the media-bus
- * @SOC_MBUS_PACKING_NONE: no packing, bit-for-bit transfer to RAM
+ * @SOC_MBUS_PACKING_NONE: no packing, bit-for-bit transfer to RAM, one
+ * sample represents one pixel
* @SOC_MBUS_PACKING_2X8_PADHI: 16 bits transferred in 2 8-bit samples, in the
* possibly incomplete byte high bits are padding
* @SOC_MBUS_PACKING_2X8_PADLO: as above, but low bits are padding
* @SOC_MBUS_PACKING_EXTEND16: sample width (e.g., 10 bits) has to be extended
* to 16 bits
+ * @SOC_MBUS_PACKING_VARIABLE: compressed formats with variable packing
+ * @SOC_MBUS_PACKING_1_5X8: used for packed YUV 4:2:0 formats, where 4
+ * pixels occupy 6 bytes in RAM
*/
enum soc_mbus_packing {
SOC_MBUS_PACKING_NONE,
@@ -29,6 +33,7 @@
SOC_MBUS_PACKING_2X8_PADLO,
SOC_MBUS_PACKING_EXTEND16,
SOC_MBUS_PACKING_VARIABLE,
+ SOC_MBUS_PACKING_1_5X8,
};
/**
@@ -75,6 +80,7 @@
const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc(
enum v4l2_mbus_pixelcode code);
s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf);
-int soc_mbus_samples_per_pixel(const struct soc_mbus_pixelfmt *mf);
+int soc_mbus_samples_per_pixel(const struct soc_mbus_pixelfmt *mf,
+ unsigned int *numerator, unsigned int *denominator);
#endif