Add support to pass through the sensor's native SGBRG8 bayer pattern,
allowing to cut the required USB bandwidth in half.
Signed-off-by: Philipp Zabel <philipp.zabel@xxxxxxxxx>
---
drivers/media/usb/gspca/ov534.c | 115 +++++++++++++++++++++++++++-----
1 file changed, 98 insertions(+), 17 deletions(-)
diff --git a/drivers/media/usb/gspca/ov534.c b/drivers/media/usb/gspca/ov534.c
index 077c49a74709..5b73f7f58ae6 100644
--- a/drivers/media/usb/gspca/ov534.c
+++ b/drivers/media/usb/gspca/ov534.c
@@ -103,6 +103,16 @@ static const struct v4l2_pix_format ov772x_mode[] = {
.sizeimage = 640 * 480 * 2,
.colorspace = V4L2_COLORSPACE_SRGB,
.priv = 0},
+ {320, 240, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
+ .bytesperline = 320,
+ .sizeimage = 320 * 240,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 1},
+ {640, 480, V4L2_PIX_FMT_SGRBG8, V4L2_FIELD_NONE,
+ .bytesperline = 640,
+ .sizeimage = 640 * 480,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 0},
};
static const struct v4l2_pix_format ov767x_mode[] = {
{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
@@ -127,6 +137,14 @@ static const struct framerates ov772x_framerates[] = {
.rates = vga_rates,
.nrates = ARRAY_SIZE(vga_rates),
},
+ { /* 320x240 SGBRG8 */
+ .rates = qvga_rates,
+ .nrates = ARRAY_SIZE(qvga_rates),
+ },
+ { /* 640x480 SGBRG8 */
+ .rates = vga_rates,
+ .nrates = ARRAY_SIZE(vga_rates),
+ },
};
struct reg_array {
@@ -552,7 +570,7 @@ static const u8 sensor_init_772x[][2] = {
{ 0x8e, 0x00 }, /* De-noise threshold */
{ 0x0c, 0xd0 }
};
-static const u8 bridge_start_vga_772x[][2] = {
+static const u8 bridge_start_vga_yuyv_772x[][2] = {
{0x88, 0x00},
{0x1c, 0x00},
{0x1d, 0x40},
@@ -568,7 +586,7 @@ static const u8 bridge_start_vga_772x[][2] = {
{0xc2, 0x0c},
{0xc3, 0x69},
};
-static const u8 sensor_start_vga_772x[][2] = {
+static const u8 sensor_start_vga_yuyv_772x[][2] = {
{0x12, 0x00},
{0x17, 0x26},
{0x18, 0xa0},
@@ -577,8 +595,9 @@ static const u8 sensor_start_vga_772x[][2] = {
{0x29, 0xa0},
{0x2c, 0xf0},
{0x65, 0x20},
+ {0x67, 0x00},
};
-static const u8 bridge_start_qvga_772x[][2] = {
+static const u8 bridge_start_qvga_yuyv_772x[][2] = {
{0x88, 0x00},
{0x1c, 0x00},
{0x1d, 0x40},
@@ -594,7 +613,7 @@ static const u8 bridge_start_qvga_772x[][2] = {
{0xc2, 0x0c},
{0xc3, 0x69},
};
-static const u8 sensor_start_qvga_772x[][2] = {
+static const u8 sensor_start_qvga_yuyv_772x[][2] = {
{0x12, 0x40},
{0x17, 0x3f},
{0x18, 0x50},
@@ -603,6 +622,61 @@ static const u8 sensor_start_qvga_772x[][2] = {
{0x29, 0x50},
{0x2c, 0x78},
{0x65, 0x2f},
+ {0x67, 0x00},
+};
+static const u8 bridge_start_vga_gbrg_772x[][2] = {
+ {0x88, 0x08},
+ {0x1c, 0x00},
+ {0x1d, 0x00},
+ {0x1d, 0x02},
+ {0x1d, 0x00},
+ {0x1d, 0x01},
+ {0x1d, 0x2c},
+ {0x1d, 0x00},
+ {0x8d, 0x00},
+ {0x8e, 0x00},
+ {0xc0, 0x50},
+ {0xc1, 0x3c},
+ {0xc2, 0x01},
+ {0xc3, 0x01},
+};
+static const u8 sensor_start_vga_gbrg_772x[][2] = {
+ {0x12, 0x01},
+ {0x17, 0x26},
+ {0x18, 0xa0},
+ {0x19, 0x07},
+ {0x1a, 0xf0},
+ {0x29, 0xa0},
+ {0x2c, 0xf0},
+ {0x65, 0x20},
+ {0x67, 0x02},
+};
+static const u8 bridge_start_qvga_gbrg_772x[][2] = {
+ {0x88, 0x08},
+ {0x1c, 0x00},
+ {0x1d, 0x00},
+ {0x1d, 0x02},
+ {0x1d, 0x00},
+ {0x1d, 0x00},
+ {0x1d, 0x4b},
+ {0x1d, 0x00},
+ {0x8d, 0x00},
+ {0x8e, 0x00},
+ {0xc0, 0x28},
+ {0xc1, 0x1e},
+ {0xc2, 0x01},
+ {0xc3, 0x01},
+};
+static const u8 sensor_start_qvga_gbrg_772x[][2] = {
+ {0x12, 0x41},
+ {0x17, 0x3f},
+ {0x18, 0x50},
+ {0x19, 0x03},
+ {0x1a, 0x78},
+ {0x29, 0x50},
+ {0x2c, 0x78},
+ {0x65, 0x2f},
+ {0x67, 0x02},
};
static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
@@ -1316,25 +1390,33 @@ static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int mode;
- static const struct reg_array bridge_start[NSENSORS][2] = {
+ static const struct reg_array bridge_start[NSENSORS][4] = {
[SENSOR_OV767x] = {{bridge_start_qvga_767x,
ARRAY_SIZE(bridge_start_qvga_767x)},
{bridge_start_vga_767x,
ARRAY_SIZE(bridge_start_vga_767x)}},
- [SENSOR_OV772x] = {{bridge_start_qvga_772x,
- ARRAY_SIZE(bridge_start_qvga_772x)},
- {bridge_start_vga_772x,
- ARRAY_SIZE(bridge_start_vga_772x)}},
+ [SENSOR_OV772x] = {{bridge_start_qvga_yuyv_772x,
+ ARRAY_SIZE(bridge_start_qvga_yuyv_772x)},
+ {bridge_start_vga_yuyv_772x,
+ ARRAY_SIZE(bridge_start_vga_yuyv_772x)},
+ {bridge_start_qvga_gbrg_772x,
+ ARRAY_SIZE(bridge_start_qvga_gbrg_772x)},
+ {bridge_start_vga_gbrg_772x,
+ ARRAY_SIZE(bridge_start_vga_gbrg_772x)} },
};
- static const struct reg_array sensor_start[NSENSORS][2] = {
+ static const struct reg_array sensor_start[NSENSORS][4] = {
[SENSOR_OV767x] = {{sensor_start_qvga_767x,
ARRAY_SIZE(sensor_start_qvga_767x)},
{sensor_start_vga_767x,
ARRAY_SIZE(sensor_start_vga_767x)}},
- [SENSOR_OV772x] = {{sensor_start_qvga_772x,
- ARRAY_SIZE(sensor_start_qvga_772x)},
- {sensor_start_vga_772x,
- ARRAY_SIZE(sensor_start_vga_772x)}},
+ [SENSOR_OV772x] = {{sensor_start_qvga_yuyv_772x,
+ ARRAY_SIZE(sensor_start_qvga_yuyv_772x)},
+ {sensor_start_vga_yuyv_772x,
+ ARRAY_SIZE(sensor_start_vga_yuyv_772x)},
+ {sensor_start_qvga_gbrg_772x,
+ ARRAY_SIZE(sensor_start_qvga_gbrg_772x)},
+ {sensor_start_vga_gbrg_772x,
+ ARRAY_SIZE(sensor_start_vga_gbrg_772x)} },
};
/* (from ms-win trace) */
@@ -1440,10 +1522,9 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
/* If this packet is marked as EOF, end the frame */
} else if (data[1] & UVC_STREAM_EOF) {
sd->last_pts = 0;
- if (gspca_dev->pixfmt.pixelformat == V4L2_PIX_FMT_YUYV
+ if (gspca_dev->pixfmt.pixelformat != V4L2_PIX_FMT_JPEG
&& gspca_dev->image_len + len - 12 !=
- gspca_dev->pixfmt.width *
- gspca_dev->pixfmt.height * 2) {
+ gspca_dev->pixfmt.sizeimage) {
gspca_dbg(gspca_dev, D_PACK, "wrong sized frame\n");
goto discard;
}
--
2.20.0
