diff mbox series

[v2,24/30] adv748x: csi2: add translation from pixelcode to CSI-2 datatype

Message ID 20181101233144.31507-25-niklas.soderlund+renesas@ragnatech.se (mailing list archive)
State New, archived
Headers show
Series v4l: add support for multiplexed streams | expand

Commit Message

Niklas Söderlund Nov. 1, 2018, 11:31 p.m. UTC 
Prepare to implement frame descriptors to support multiplexed streams by
adding a function to map pixelcode to CSI-2 datatype. This is needed to
properly be able to fill out the struct v4l2_mbus_frame_desc.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 drivers/media/i2c/adv748x/adv748x-csi2.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c
index 6ce21542ed485811..8a7cc713c7adfcc1 100644
--- a/drivers/media/i2c/adv748x/adv748x-csi2.c
+++ b/drivers/media/i2c/adv748x/adv748x-csi2.c
@@ -14,6 +14,28 @@ 
 
 #include "adv748x.h"
 
+struct adv748x_csi2_format {
+	unsigned int code;
+	unsigned int datatype;
+};
+
+static const struct adv748x_csi2_format adv748x_csi2_formats[] = {
+	{ .code = MEDIA_BUS_FMT_RGB888_1X24,    .datatype = 0x24, },
+	{ .code = MEDIA_BUS_FMT_UYVY8_1X16,     .datatype = 0x1e, },
+	{ .code = MEDIA_BUS_FMT_UYVY8_2X8,      .datatype = 0x1e, },
+	{ .code = MEDIA_BUS_FMT_YUYV10_2X10,    .datatype = 0x1e, },
+};
+
+static unsigned int adv748x_csi2_code_to_datatype(unsigned int code)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(adv748x_csi2_formats); i++)
+		if (adv748x_csi2_formats[i].code == code)
+			return adv748x_csi2_formats[i].datatype;
+	return 0;
+}
+
 static int adv748x_csi2_set_virtual_channel(struct adv748x_csi2 *tx,
 					    unsigned int vc)
 {