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media: ov5640: Add RAW bayer format support

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OV5640 sensor supports raw image output (bayer).
Configure ISP mux/format registers accordingly.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Loic Poulain 2018-11-02 12:38:43 -04:00 committed by Mauro Carvalho Chehab
parent 961304d17a
commit b7ed3abd80
1 changed files with 46 additions and 12 deletions
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58
drivers/media/i2c/ov5640.c
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@ -115,6 +115,15 @@ enum ov5640_frame_rate {
OV5640_NUM_FRAMERATES,
};
enum ov5640_format_mux {
OV5640_FMT_MUX_YUV422 = 0,
OV5640_FMT_MUX_RGB,
OV5640_FMT_MUX_DITHER,
OV5640_FMT_MUX_RAW_DPC,
OV5640_FMT_MUX_SNR_RAW,
OV5640_FMT_MUX_RAW_CIP,
};
struct ov5640_pixfmt {
u32 code;
u32 colorspace;
@ -126,6 +135,10 @@ static const struct ov5640_pixfmt ov5640_formats[] = {
{ MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_SRGB, },
{ MEDIA_BUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB, },
{ MEDIA_BUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB, },
{ MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB, },
{ MEDIA_BUS_FMT_SGBRG8_1X8, V4L2_COLORSPACE_SRGB, },
{ MEDIA_BUS_FMT_SGRBG8_1X8, V4L2_COLORSPACE_SRGB, },
{ MEDIA_BUS_FMT_SRGGB8_1X8, V4L2_COLORSPACE_SRGB, },
};
/*
@ -2200,46 +2213,67 @@ static int ov5640_set_framefmt(struct ov5640_dev *sensor,
struct v4l2_mbus_framefmt *format)
{
int ret = 0;
bool is_rgb = false;
bool is_jpeg = false;
u8 val;
u8 fmt, mux;
switch (format->code) {
case MEDIA_BUS_FMT_UYVY8_2X8:
/* YUV422, UYVY */
val = 0x3f;
fmt = 0x3f;
mux = OV5640_FMT_MUX_YUV422;
break;
case MEDIA_BUS_FMT_YUYV8_2X8:
/* YUV422, YUYV */
val = 0x30;
fmt = 0x30;
mux = OV5640_FMT_MUX_YUV422;
break;
case MEDIA_BUS_FMT_RGB565_2X8_LE:
/* RGB565 {g[2:0],b[4:0]},{r[4:0],g[5:3]} */
val = 0x6F;
is_rgb = true;
fmt = 0x6F;
mux = OV5640_FMT_MUX_RGB;
break;
case MEDIA_BUS_FMT_RGB565_2X8_BE:
/* RGB565 {r[4:0],g[5:3]},{g[2:0],b[4:0]} */
val = 0x61;
is_rgb = true;
fmt = 0x61;
mux = OV5640_FMT_MUX_RGB;
break;
case MEDIA_BUS_FMT_JPEG_1X8:
/* YUV422, YUYV */
val = 0x30;
fmt = 0x30;
mux = OV5640_FMT_MUX_YUV422;
is_jpeg = true;
break;
case MEDIA_BUS_FMT_SBGGR8_1X8:
/* Raw, BGBG... / GRGR... */
fmt = 0x00;
mux = OV5640_FMT_MUX_RAW_DPC;
break;
case MEDIA_BUS_FMT_SGBRG8_1X8:
/* Raw bayer, GBGB... / RGRG... */
fmt = 0x01;
mux = OV5640_FMT_MUX_RAW_DPC;
break;
case MEDIA_BUS_FMT_SGRBG8_1X8:
/* Raw bayer, GRGR... / BGBG... */
fmt = 0x02;
mux = OV5640_FMT_MUX_RAW_DPC;
break;
case MEDIA_BUS_FMT_SRGGB8_1X8:
/* Raw bayer, RGRG... / GBGB... */
fmt = 0x03;
mux = OV5640_FMT_MUX_RAW_DPC;
break;
default:
return -EINVAL;
}
/* FORMAT CONTROL00: YUV and RGB formatting */
ret = ov5640_write_reg(sensor, OV5640_REG_FORMAT_CONTROL00, val);
ret = ov5640_write_reg(sensor, OV5640_REG_FORMAT_CONTROL00, fmt);
if (ret)
return ret;
/* FORMAT MUX CONTROL: ISP YUV or RGB */
ret = ov5640_write_reg(sensor, OV5640_REG_ISP_FORMAT_MUX_CTRL,
is_rgb ? 0x01 : 0x00);
ret = ov5640_write_reg(sensor, OV5640_REG_ISP_FORMAT_MUX_CTRL, mux);
if (ret)
return ret;