PATCH: gspca, spca561: fix low res modes

PATCH: gspca, spca561: fix low res modes

[Hans de Goede]

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Hi All,

The low (half) res modes of the spca561 are not spca561 compressed, but are
raw bayer, this patches fixes this and adds a PIX_FMT define for the GBRG
bayer format used by the spca561 in low res mode.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>

Regards,

Hans

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The low (half) res modes of the spca561 are not spca561 compressed, but are
raw bayer, this patches fixes this and adds a PIX_FMT define for the GBRG
bayer format used by the spca561 in low res mode.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
--- gspca-2bbb47f61a95/linux/drivers/media/video/gspca/spca561.c~	2008-07-03 12:34:09.000000000 +0200
+++ gspca-2bbb47f61a95/linux/drivers/media/video/gspca/spca561.c	2008-07-03 12:34:09.000000000 +0200
@@ -98,8 +98,8 @@ static struct ctrl sd_ctrls[] = {
 };
 
 static struct cam_mode sif_mode[] = {
-	{V4L2_PIX_FMT_SPCA561, 160, 120, 3},
-	{V4L2_PIX_FMT_SPCA561, 176, 144, 2},
+	{V4L2_PIX_FMT_SGBRG8, 160, 120, 3},
+	{V4L2_PIX_FMT_SGBRG8, 176, 144, 2},
 	{V4L2_PIX_FMT_SPCA561, 320, 240, 1},
 	{V4L2_PIX_FMT_SPCA561, 352, 288, 0},
 };
@@ -808,7 +808,7 @@ static void sd_pkt_scan(struct gspca_dev
 			gspca_frame_add(gspca_dev, FIRST_PACKET,
 					frame, data, len);
 		} else {
-			/*fixme: which format?*/
+			/* raw bayer (with a header, which we skip) */
 			data += 20;
 			len -= 20;
 			gspca_frame_add(gspca_dev, FIRST_PACKET,
--- gspca-2bbb47f61a95/linux/include/linux/videodev2.h~	2008-07-03 12:34:06.000000000 +0200
+++ gspca-2bbb47f61a95/linux/include/linux/videodev2.h	2008-07-03 12:34:06.000000000 +0200
@@ -310,6 +310,7 @@ struct v4l2_pix_format
 
 /* see http://www.siliconimaging.com/RGB%20Bayer.htm */
 #define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B','A','8','1') /*  8  BGBG.. GRGR.. */
+#define V4L2_PIX_FMT_SGBRG8  v4l2_fourcc('G','B','R','G') /*  8  GBGB.. RGRG.. */
 #define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B','Y','R','2') /* 16  BGBG.. GRGR.. */
 
 /* compressed formats */

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