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[media] ov2640: add support for V4L2_MBUS_FMT_YUYV8_2X8, V4L2_MBUS_FMT_RGB565_2X8_BE 

This is the result of experimenting with the SpeedLink VAD Laplace webcam.
The register sequence for V4L2_MBUS_FMT_YUYV8_2X8 has been identified by
analyzing USB-logs of this device running on MS Windows.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Frank Schäfer 2012-09-23 15:28:45 -03:00 committed by Mauro Carvalho Chehab
parent 1438be56ad
commit d1a49eacd9
1 changed files with 42 additions and 7 deletions
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49
drivers/media/i2c/soc_camera/ov2640.c
View File

@ -586,9 +586,20 @@ static const struct regval_list ov2640_format_change_preamble_regs[] = {
ENDMARKER,
};
static const struct regval_list ov2640_yuv422_regs[] = {
static const struct regval_list ov2640_yuyv_regs[] = {
{ IMAGE_MODE, IMAGE_MODE_YUV422 },
{ 0xd7, 0x03 },
{ 0x33, 0xa0 },
{ 0xe5, 0x1f },
{ 0xe1, 0x67 },
{ RESET, 0x00 },
{ R_BYPASS, R_BYPASS_USE_DSP },
ENDMARKER,
};
static const struct regval_list ov2640_uyvy_regs[] = {
{ IMAGE_MODE, IMAGE_MODE_LBYTE_FIRST | IMAGE_MODE_YUV422 },
{ 0xD7, 0x01 },
{ 0xd7, 0x01 },
{ 0x33, 0xa0 },
{ 0xe1, 0x67 },
{ RESET, 0x00 },
@ -596,7 +607,15 @@ static const struct regval_list ov2640_yuv422_regs[] = {
ENDMARKER,
};
static const struct regval_list ov2640_rgb565_regs[] = {
static const struct regval_list ov2640_rgb565_be_regs[] = {
{ IMAGE_MODE, IMAGE_MODE_RGB565 },
{ 0xd7, 0x03 },
{ RESET, 0x00 },
{ R_BYPASS, R_BYPASS_USE_DSP },
ENDMARKER,
};
static const struct regval_list ov2640_rgb565_le_regs[] = {
{ IMAGE_MODE, IMAGE_MODE_LBYTE_FIRST | IMAGE_MODE_RGB565 },
{ 0xd7, 0x03 },
{ RESET, 0x00 },
@ -605,7 +624,9 @@ static const struct regval_list ov2640_rgb565_regs[] = {
};
static enum v4l2_mbus_pixelcode ov2640_codes[] = {
V4L2_MBUS_FMT_YUYV8_2X8,
V4L2_MBUS_FMT_UYVY8_2X8,
V4L2_MBUS_FMT_RGB565_2X8_BE,
V4L2_MBUS_FMT_RGB565_2X8_LE,
};
@ -787,14 +808,22 @@ static int ov2640_set_params(struct i2c_client *client, u32 *width, u32 *height,
/* select format */
priv->cfmt_code = 0;
switch (code) {
case V4L2_MBUS_FMT_RGB565_2X8_BE:
dev_dbg(&client->dev, "%s: Selected cfmt RGB565 BE", __func__);
selected_cfmt_regs = ov2640_rgb565_be_regs;
break;
case V4L2_MBUS_FMT_RGB565_2X8_LE:
dev_dbg(&client->dev, "%s: Selected cfmt RGB565", __func__);
selected_cfmt_regs = ov2640_rgb565_regs;
dev_dbg(&client->dev, "%s: Selected cfmt RGB565 LE", __func__);
selected_cfmt_regs = ov2640_rgb565_le_regs;
break;
case V4L2_MBUS_FMT_YUYV8_2X8:
dev_dbg(&client->dev, "%s: Selected cfmt YUYV (YUV422)", __func__);
selected_cfmt_regs = ov2640_yuyv_regs;
break;
default:
case V4L2_MBUS_FMT_UYVY8_2X8:
dev_dbg(&client->dev, "%s: Selected cfmt YUV422", __func__);
selected_cfmt_regs = ov2640_yuv422_regs;
dev_dbg(&client->dev, "%s: Selected cfmt UYVY", __func__);
selected_cfmt_regs = ov2640_uyvy_regs;
}
/* reset hardware */
@ -859,10 +888,12 @@ static int ov2640_g_fmt(struct v4l2_subdev *sd,
mf->code = priv->cfmt_code;
switch (mf->code) {
case V4L2_MBUS_FMT_RGB565_2X8_BE:
case V4L2_MBUS_FMT_RGB565_2X8_LE:
mf->colorspace = V4L2_COLORSPACE_SRGB;
break;
default:
case V4L2_MBUS_FMT_YUYV8_2X8:
case V4L2_MBUS_FMT_UYVY8_2X8:
mf->colorspace = V4L2_COLORSPACE_JPEG;
}
@ -879,11 +910,13 @@ static int ov2640_s_fmt(struct v4l2_subdev *sd,
switch (mf->code) {
case V4L2_MBUS_FMT_RGB565_2X8_BE:
case V4L2_MBUS_FMT_RGB565_2X8_LE:
mf->colorspace = V4L2_COLORSPACE_SRGB;
break;
default:
mf->code = V4L2_MBUS_FMT_UYVY8_2X8;
case V4L2_MBUS_FMT_YUYV8_2X8:
case V4L2_MBUS_FMT_UYVY8_2X8:
mf->colorspace = V4L2_COLORSPACE_JPEG;
}
@ -904,11 +937,13 @@ static int ov2640_try_fmt(struct v4l2_subdev *sd,
mf->field = V4L2_FIELD_NONE;
switch (mf->code) {
case V4L2_MBUS_FMT_RGB565_2X8_BE:
case V4L2_MBUS_FMT_RGB565_2X8_LE:
mf->colorspace = V4L2_COLORSPACE_SRGB;
break;
default:
mf->code = V4L2_MBUS_FMT_UYVY8_2X8;
case V4L2_MBUS_FMT_YUYV8_2X8:
case V4L2_MBUS_FMT_UYVY8_2X8:
mf->colorspace = V4L2_COLORSPACE_JPEG;
}