[PATCH v7 28/28] media: ov5640: Move format mux config in format

Sakari Ailus
2022-05-13T14:16:39Z

The image format produced by the sensor is controlled by two registers,
whose values computation is open coded in ov5640_set_framefmt().

As we have a list of formats already, move the OV5640_REG_FORMAT_CONTROL00
and OV5640_REG_ISP_FORMAT_MUX_CTRL register values to the static list
of formats instead of open coding it.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Hugues Fruchet <hugues.fruchet@foss.st.com>
Tested-by: Hugues Fruchet <hugues.fruchet@foss.st.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
drivers/media/i2c/ov5640.c | 233 +++++++++++++++++++------------------
1 file changed, 117 insertions(+), 116 deletions(-)

diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 44f26d5cf029c..502f0b62e9505 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -192,86 +192,142 @@ struct ov5640_pixfmt {
u32 code;
u32 colorspace;
u8 bpp;
+ u8 ctrl00;
+ enum ov5640_format_mux mux;
};

static const struct ov5640_pixfmt ov5640_dvp_formats[] = {
{
- .code = MEDIA_BUS_FMT_JPEG_1X8,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .bpp = 16,
+ /* YUV422, YUYV */
+ .code = MEDIA_BUS_FMT_JPEG_1X8,
+ .colorspace = V4L2_COLORSPACE_JPEG,
+ .bpp = 16,
+ .ctrl00 = 0x30,
+ .mux = OV5640_FMT_MUX_YUV422,
}, {
- .code = MEDIA_BUS_FMT_UYVY8_2X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 16,
+ /* YUV422, UYVY */
+ .code = MEDIA_BUS_FMT_UYVY8_2X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 16,
+ .ctrl00 = 0x3f,
+ .mux = OV5640_FMT_MUX_YUV422,
}, {
- .code = MEDIA_BUS_FMT_YUYV8_2X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 16,
+ /* YUV422, YUYV */
+ .code = MEDIA_BUS_FMT_YUYV8_2X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 16,
+ .ctrl00 = 0x30,
+ .mux = OV5640_FMT_MUX_YUV422,
}, {
- .code = MEDIA_BUS_FMT_RGB565_2X8_LE,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 16,
+ /* RGB565 {g[2:0],b[4:0]},{r[4:0],g[5:3]} */
+ .code = MEDIA_BUS_FMT_RGB565_2X8_LE,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 16,
+ .ctrl00 = 0x6f,
+ .mux = OV5640_FMT_MUX_RGB,
}, {
- .code = MEDIA_BUS_FMT_RGB565_2X8_BE,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 16,
+ /* RGB565 {r[4:0],g[5:3]},{g[2:0],b[4:0]} */
+ .code = MEDIA_BUS_FMT_RGB565_2X8_BE,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 16,
+ .ctrl00 = 0x61,
+ .mux = OV5640_FMT_MUX_RGB,
}, {
- .code = MEDIA_BUS_FMT_SBGGR8_1X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 8,
+ /* Raw, BGBG... / GRGR... */
+ .code = MEDIA_BUS_FMT_SBGGR8_1X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 8,
+ .ctrl00 = 0x00,
+ .mux = OV5640_FMT_MUX_RAW_DPC,
}, {
- .code = MEDIA_BUS_FMT_SGBRG8_1X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 8
+ /* Raw bayer, GBGB... / RGRG... */
+ .code = MEDIA_BUS_FMT_SGBRG8_1X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 8,
+ .ctrl00 = 0x01,
+ .mux = OV5640_FMT_MUX_RAW_DPC,
}, {
- .code = MEDIA_BUS_FMT_SGRBG8_1X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 8,
+ /* Raw bayer, GRGR... / BGBG... */
+ .code = MEDIA_BUS_FMT_SGRBG8_1X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 8,
+ .ctrl00 = 0x02,
+ .mux = OV5640_FMT_MUX_RAW_DPC,
}, {
- .code = MEDIA_BUS_FMT_SRGGB8_1X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 8,
+ /* Raw bayer, RGRG... / GBGB... */
+ .code = MEDIA_BUS_FMT_SRGGB8_1X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 8,
+ .ctrl00 = 0x03,
+ .mux = OV5640_FMT_MUX_RAW_DPC,
},
{ /* sentinel */ }
};

static const struct ov5640_pixfmt ov5640_csi2_formats[] = {
{
- .code = MEDIA_BUS_FMT_JPEG_1X8,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .bpp = 16,
+ /* YUV422, YUYV */
+ .code = MEDIA_BUS_FMT_JPEG_1X8,
+ .colorspace = V4L2_COLORSPACE_JPEG,
+ .bpp = 16,
+ .ctrl00 = 0x30,
+ .mux = OV5640_FMT_MUX_YUV422,
}, {
- .code = MEDIA_BUS_FMT_UYVY8_1X16,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 16,
+ /* YUV422, UYVY */
+ .code = MEDIA_BUS_FMT_UYVY8_1X16,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 16,
+ .ctrl00 = 0x3f,
+ .mux = OV5640_FMT_MUX_YUV422,
}, {
- .code = MEDIA_BUS_FMT_YUYV8_1X16,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 16,
+ /* YUV422, YUYV */
+ .code = MEDIA_BUS_FMT_YUYV8_1X16,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 16,
+ .ctrl00 = 0x30,
+ .mux = OV5640_FMT_MUX_YUV422,
}, {
- .code = MEDIA_BUS_FMT_RGB565_1X16,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 16,
+ /* RGB565 {g[2:0],b[4:0]},{r[4:0],g[5:3]} */
+ .code = MEDIA_BUS_FMT_RGB565_1X16,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 16,
+ .ctrl00 = 0x6f,
+ .mux = OV5640_FMT_MUX_RGB,
}, {
- .code = MEDIA_BUS_FMT_BGR888_1X24,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 24,
+ /* BGR888: RGB */
+ .code = MEDIA_BUS_FMT_BGR888_1X24,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 24,
+ .ctrl00 = 0x23,
+ .mux = OV5640_FMT_MUX_RGB,
}, {
- .code = MEDIA_BUS_FMT_SBGGR8_1X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 8,
+ /* Raw, BGBG... / GRGR... */
+ .code = MEDIA_BUS_FMT_SBGGR8_1X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 8,
+ .ctrl00 = 0x00,
+ .mux = OV5640_FMT_MUX_RAW_DPC,
}, {
- .code = MEDIA_BUS_FMT_SGBRG8_1X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 8
+ /* Raw bayer, GBGB... / RGRG... */
+ .code = MEDIA_BUS_FMT_SGBRG8_1X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 8,
+ .ctrl00 = 0x01,
+ .mux = OV5640_FMT_MUX_RAW_DPC,
}, {
- .code = MEDIA_BUS_FMT_SGRBG8_1X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 8,
+ /* Raw bayer, GRGR... / BGBG... */
+ .code = MEDIA_BUS_FMT_SGRBG8_1X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 8,
+ .ctrl00 = 0x02,
+ .mux = OV5640_FMT_MUX_RAW_DPC,
}, {
- .code = MEDIA_BUS_FMT_SRGGB8_1X8,
- .colorspace = V4L2_COLORSPACE_SRGB,
- .bpp = 8,
+ /* Raw bayer, RGRG... / GBGB... */
+ .code = MEDIA_BUS_FMT_SRGGB8_1X8,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .bpp = 8,
+ .ctrl00 = 0x03,
+ .mux = OV5640_FMT_MUX_RAW_DPC,
},
{ /* sentinel */ }
};
@@ -2970,76 +3026,21 @@ static int ov5640_get_selection(struct v4l2_subdev *sd,
static int ov5640_set_framefmt(struct ov5640_dev *sensor,
struct v4l2_mbus_framefmt *format)
{
+ bool is_jpeg = format->code == MEDIA_BUS_FMT_JPEG_1X8;
+ const struct ov5640_pixfmt *pixfmt;
int ret = 0;
- bool is_jpeg = false;
- u8 fmt, mux;

- switch (format->code) {
- case MEDIA_BUS_FMT_UYVY8_1X16:
- case MEDIA_BUS_FMT_UYVY8_2X8:
- /* YUV422, UYVY */
- fmt = 0x3f;
- mux = OV5640_FMT_MUX_YUV422;
- break;
- case MEDIA_BUS_FMT_YUYV8_1X16:
- case MEDIA_BUS_FMT_YUYV8_2X8:
- /* YUV422, YUYV */
- fmt = 0x30;
- mux = OV5640_FMT_MUX_YUV422;
- break;
- case MEDIA_BUS_FMT_RGB565_2X8_LE:
- case MEDIA_BUS_FMT_RGB565_1X16:
- /* RGB565 {g[2:0],b[4:0]},{r[4:0],g[5:3]} */
- 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]} */
- fmt = 0x61;
- mux = OV5640_FMT_MUX_RGB;
- break;
- case MEDIA_BUS_FMT_BGR888_1X24:
- /* BGR888: RGB */
- fmt = 0x23;
- mux = OV5640_FMT_MUX_RGB;
- break;
- case MEDIA_BUS_FMT_JPEG_1X8:
- /* YUV422, YUYV */
- 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;
- }
+ pixfmt = ov5640_code_to_pixfmt(sensor, format->code);

/* FORMAT CONTROL00: YUV and RGB formatting */
- ret = ov5640_write_reg(sensor, OV5640_REG_FORMAT_CONTROL00, fmt);
+ ret = ov5640_write_reg(sensor, OV5640_REG_FORMAT_CONTROL00,
+ pixfmt->ctrl00);
if (ret)
return ret;

/* FORMAT MUX CONTROL: ISP YUV or RGB */
- ret = ov5640_write_reg(sensor, OV5640_REG_ISP_FORMAT_MUX_CTRL, mux);
+ ret = ov5640_write_reg(sensor, OV5640_REG_ISP_FORMAT_MUX_CTRL,
+ pixfmt->mux);
if (ret)
return ret;

--
2.30.2