V4L/DVB (11544): gspca - m5602-mt9m111: Add experimental QVGA support

Signed-off-by: NErik Andr?n <erik.andren@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/m5602/m5602_mt9m111.c

@@ -37,6 +37,15 @@ static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val);
 
 static struct v4l2_pix_format mt9m111_modes[] = {
 	{
+		320,
+		240,
+		V4L2_PIX_FMT_SBGGR8,
+		V4L2_FIELD_NONE,
+		.sizeimage = 320 * 240,
+		.bytesperline = 320,
+		.colorspace = V4L2_COLORSPACE_SRGB,
+		.priv = 0
+	}, {
 		640,
 		480,
 		V4L2_PIX_FMT_SBGGR8,
@@ -340,6 +349,16 @@ int mt9m111_start(struct sd *sd)
 
 		err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
 		break;
+
+	case 320:
+		PDEBUG(D_V4L2, "Configuring camera for QVGA mode");
+		data[0] = MT9M111_RMB_OVER_SIZED;
+		data[1] = MT9M111_RMB_ROW_SKIP_4X |
+				MT9M111_RMB_COLUMN_SKIP_4X |
+				(sensor_settings[VFLIP_IDX] << 0) |
+				(sensor_settings[HFLIP_IDX] << 1);
+		err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
+		break;
 	}
 	return err;
 }

drivers/media/video/gspca/m5602/m5602_mt9m111.h

@@ -85,6 +85,8 @@
 #define MT9M111_RMB_MIRROR_COLS			(1 << 1)
 #define MT9M111_RMB_ROW_SKIP_2X			(1 << 2)
 #define MT9M111_RMB_COLUMN_SKIP_2X		(1 << 3)
+#define MT9M111_RMB_ROW_SKIP_4X			(1 << 4)
+#define MT9M111_RMB_COLUMN_SKIP_4X		(1 << 5)
 
 #define MT9M111_COLOR_MATRIX_BYPASS		(1 << 4)
 #define MT9M111_SEL_CONTEXT_B			(1 << 3)