media: uvcvideo: Add support for the CNF4 format

Register the GUID used by Intel RealSense cameras with fourcc CNF4,
encoding depth sensor confidence information for every pixel.

Signed-off-by: Sergey Dorodnicov <sergey.dorodnicov@intel.com>
Signed-off-by: Evgeni Raikhel <evgeni.raikhel@intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index bc369a0..6f1d5ac 100644 (file)
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -214,6 +214,11 @@ static struct uvc_format_desc uvc_fmts[] = {
                .guid           = UVC_GUID_FORMAT_INZI,
                .fcc            = V4L2_PIX_FMT_INZI,
        },
+       {
+               .name           = "4-bit Depth Confidence (Packed)",
+               .guid           = UVC_GUID_FORMAT_CNF4,
+               .fcc            = V4L2_PIX_FMT_CNF4,
+       },
 };
 
 /* ------------------------------------------------------------------------

diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index c0cbd83..b6ad116 100644 (file)
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -154,6 +154,9 @@
 #define UVC_GUID_FORMAT_INVI \
        { 'I',  'N',  'V',  'I', 0xdb, 0x57, 0x49, 0x5e, \
         0x8e, 0x3f, 0xf4, 0x79, 0x53, 0x2b, 0x94, 0x6f}
+#define UVC_GUID_FORMAT_CNF4 \
+       { 'C',  ' ',  ' ',  ' ', 0x00, 0x00, 0x10, 0x00, \
+        0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
 
 #define UVC_GUID_FORMAT_D3DFMT_L8 \
        {0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, \