From: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
Reviewed-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
---
drivers/media/i2c/adv748x/adv748x-csi2.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c
index 2091cda50935..25798d723174 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)
{
--
2.20.1
