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media: i2c: imx219: Add support for RAW8 bit bayer format
IMX219 sensor is capable for RAW8/RAW10 modes. This commit adds support for RAW8 bayer format. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Lad Prabhakar
Mauro Carvalho Chehab
parent
ca45448a56
commit
22da1d56e9
@ -168,15 +168,12 @@ static const struct imx219_reg mode_3280x2464_regs[] = {
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{0x0171, 0x01},
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{0x0174, 0x00},
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{0x0175, 0x00},
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{0x018c, 0x0a},
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{0x018d, 0x0a},
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{0x0301, 0x05},
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{0x0303, 0x01},
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{0x0304, 0x03},
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{0x0305, 0x03},
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{0x0306, 0x00},
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{0x0307, 0x39},
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{0x0309, 0x0a},
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{0x030b, 0x01},
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{0x030c, 0x00},
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{0x030d, 0x72},
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@ -230,15 +227,12 @@ static const struct imx219_reg mode_1920_1080_regs[] = {
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{0x0171, 0x01},
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{0x0174, 0x00},
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{0x0175, 0x00},
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{0x018c, 0x0a},
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{0x018d, 0x0a},
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{0x0301, 0x05},
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{0x0303, 0x01},
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{0x0304, 0x03},
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{0x0305, 0x03},
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{0x0306, 0x00},
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{0x0307, 0x39},
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{0x0309, 0x0a},
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{0x030b, 0x01},
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{0x030c, 0x00},
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{0x030d, 0x72},
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@ -290,15 +284,12 @@ static const struct imx219_reg mode_1640_1232_regs[] = {
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{0x0171, 0x01},
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{0x0174, 0x01},
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{0x0175, 0x01},
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{0x018c, 0x0a},
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{0x018d, 0x0a},
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{0x0301, 0x05},
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{0x0303, 0x01},
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{0x0304, 0x03},
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{0x0305, 0x03},
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{0x0306, 0x00},
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{0x0307, 0x39},
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{0x0309, 0x0a},
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{0x030b, 0x01},
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{0x030c, 0x00},
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{0x030d, 0x72},
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@ -322,6 +313,18 @@ static const struct imx219_reg mode_1640_1232_regs[] = {
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{0x0163, 0x78},
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};
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static const struct imx219_reg raw8_framefmt_regs[] = {
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{0x018c, 0x08},
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{0x018d, 0x08},
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{0x0309, 0x08},
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};
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static const struct imx219_reg raw10_framefmt_regs[] = {
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{0x018c, 0x0a},
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{0x018d, 0x0a},
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{0x0309, 0x0a},
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};
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static const char * const imx219_test_pattern_menu[] = {
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"Disabled",
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"Color Bars",
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@ -348,6 +351,27 @@ static const char * const imx219_supply_name[] = {
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#define IMX219_NUM_SUPPLIES ARRAY_SIZE(imx219_supply_name)
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/*
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* The supported formats.
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* This table MUST contain 4 entries per format, to cover the various flip
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* combinations in the order
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* - no flip
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* - h flip
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* - v flip
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* - h&v flips
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*/
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static const u32 codes[] = {
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MEDIA_BUS_FMT_SRGGB10_1X10,
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MEDIA_BUS_FMT_SGRBG10_1X10,
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MEDIA_BUS_FMT_SGBRG10_1X10,
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MEDIA_BUS_FMT_SBGGR10_1X10,
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MEDIA_BUS_FMT_SRGGB8_1X8,
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MEDIA_BUS_FMT_SGRBG8_1X8,
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MEDIA_BUS_FMT_SGBRG8_1X8,
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MEDIA_BUS_FMT_SBGGR8_1X8,
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};
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/*
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* Initialisation delay between XCLR low->high and the moment when the sensor
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* can start capture (i.e. can leave software stanby) must be not less than:
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@ -413,6 +437,8 @@ struct imx219 {
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struct v4l2_subdev sd;
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struct media_pad pad;
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struct v4l2_mbus_framefmt fmt;
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struct clk *xclk; /* system clock to IMX219 */
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u32 xclk_freq;
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@ -519,19 +545,40 @@ static int imx219_write_regs(struct imx219 *imx219,
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}
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/* Get bayer order based on flip setting. */
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static u32 imx219_get_format_code(struct imx219 *imx219)
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static u32 imx219_get_format_code(struct imx219 *imx219, u32 code)
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{
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/*
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* Only one bayer order is supported.
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* It depends on the flip settings.
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*/
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static const u32 codes[2][2] = {
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{ MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SGRBG10_1X10, },
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{ MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_SBGGR10_1X10, },
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};
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unsigned int i;
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lockdep_assert_held(&imx219->mutex);
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return codes[imx219->vflip->val][imx219->hflip->val];
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for (i = 0; i < ARRAY_SIZE(codes); i++)
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if (codes[i] == code)
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break;
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if (i >= ARRAY_SIZE(codes))
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i = 0;
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i = (i & ~3) | (imx219->vflip->val ? 2 : 0) |
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(imx219->hflip->val ? 1 : 0);
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return codes[i];
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}
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static void imx219_set_default_format(struct imx219 *imx219)
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{
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struct v4l2_mbus_framefmt *fmt;
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fmt = &imx219->fmt;
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fmt->code = MEDIA_BUS_FMT_SRGGB10_1X10;
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fmt->colorspace = V4L2_COLORSPACE_SRGB;
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fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
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fmt->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,
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fmt->colorspace,
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fmt->ycbcr_enc);
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fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace);
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fmt->width = supported_modes[0].width;
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fmt->height = supported_modes[0].height;
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fmt->field = V4L2_FIELD_NONE;
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}
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static int imx219_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
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@ -545,7 +592,8 @@ static int imx219_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
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/* Initialize try_fmt */
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try_fmt->width = supported_modes[0].width;
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try_fmt->height = supported_modes[0].height;
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try_fmt->code = imx219_get_format_code(imx219);
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try_fmt->code = imx219_get_format_code(imx219,
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MEDIA_BUS_FMT_SRGGB10_1X10);
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try_fmt->field = V4L2_FIELD_NONE;
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mutex_unlock(&imx219->mutex);
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@ -648,14 +696,10 @@ static int imx219_enum_mbus_code(struct v4l2_subdev *sd,
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{
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struct imx219 *imx219 = to_imx219(sd);
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/*
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* Only one bayer order is supported (though it depends on the flip
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* settings)
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*/
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if (code->index > 0)
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if (code->index >= (ARRAY_SIZE(codes) / 4))
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return -EINVAL;
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code->code = imx219_get_format_code(imx219);
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code->code = imx219_get_format_code(imx219, codes[code->index * 4]);
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return 0;
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}
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@ -669,7 +713,7 @@ static int imx219_enum_frame_size(struct v4l2_subdev *sd,
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if (fse->index >= ARRAY_SIZE(supported_modes))
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return -EINVAL;
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if (fse->code != imx219_get_format_code(imx219))
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if (fse->code != imx219_get_format_code(imx219, imx219->fmt.code))
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return -EINVAL;
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fse->min_width = supported_modes[fse->index].width;
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@ -696,9 +740,7 @@ static void imx219_update_pad_format(struct imx219 *imx219,
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{
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fmt->format.width = mode->width;
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fmt->format.height = mode->height;
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fmt->format.code = imx219_get_format_code(imx219);
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fmt->format.field = V4L2_FIELD_NONE;
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imx219_reset_colorspace(&fmt->format);
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}
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@ -710,10 +752,12 @@ static int __imx219_get_pad_format(struct imx219 *imx219,
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struct v4l2_mbus_framefmt *try_fmt =
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v4l2_subdev_get_try_format(&imx219->sd, cfg, fmt->pad);
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/* update the code which could change due to vflip or hflip: */
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try_fmt->code = imx219_get_format_code(imx219);
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try_fmt->code = imx219_get_format_code(imx219, try_fmt->code);
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fmt->format = *try_fmt;
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} else {
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imx219_update_pad_format(imx219, imx219->mode, fmt);
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fmt->format.code = imx219_get_format_code(imx219,
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imx219->fmt.code);
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}
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return 0;
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@ -741,11 +785,18 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
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const struct imx219_mode *mode;
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struct v4l2_mbus_framefmt *framefmt;
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int exposure_max, exposure_def, hblank;
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unsigned int i;
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mutex_lock(&imx219->mutex);
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for (i = 0; i < ARRAY_SIZE(codes); i++)
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if (codes[i] == fmt->format.code)
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break;
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if (i >= ARRAY_SIZE(codes))
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i = 0;
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/* Bayer order varies with flips */
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fmt->format.code = imx219_get_format_code(imx219);
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fmt->format.code = imx219_get_format_code(imx219, codes[i]);
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mode = v4l2_find_nearest_size(supported_modes,
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ARRAY_SIZE(supported_modes),
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@ -755,7 +806,9 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
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if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
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framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
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*framefmt = fmt->format;
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} else if (imx219->mode != mode) {
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} else if (imx219->mode != mode ||
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imx219->fmt.code != fmt->format.code) {
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imx219->fmt = fmt->format;
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imx219->mode = mode;
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/* Update limits and set FPS to default */
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__v4l2_ctrl_modify_range(imx219->vblank, IMX219_VBLANK_MIN,
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@ -786,6 +839,27 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
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return 0;
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}
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static int imx219_set_framefmt(struct imx219 *imx219)
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{
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switch (imx219->fmt.code) {
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case MEDIA_BUS_FMT_SRGGB8_1X8:
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case MEDIA_BUS_FMT_SGRBG8_1X8:
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case MEDIA_BUS_FMT_SGBRG8_1X8:
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case MEDIA_BUS_FMT_SBGGR8_1X8:
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return imx219_write_regs(imx219, raw8_framefmt_regs,
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ARRAY_SIZE(raw8_framefmt_regs));
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case MEDIA_BUS_FMT_SRGGB10_1X10:
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case MEDIA_BUS_FMT_SGRBG10_1X10:
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case MEDIA_BUS_FMT_SGBRG10_1X10:
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case MEDIA_BUS_FMT_SBGGR10_1X10:
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return imx219_write_regs(imx219, raw10_framefmt_regs,
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ARRAY_SIZE(raw10_framefmt_regs));
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}
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return -EINVAL;
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}
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static int imx219_start_streaming(struct imx219 *imx219)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
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@ -800,6 +874,13 @@ static int imx219_start_streaming(struct imx219 *imx219)
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return ret;
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}
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ret = imx219_set_framefmt(imx219);
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if (ret) {
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dev_err(&client->dev, "%s failed to set frame format: %d\n",
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__func__, ret);
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return ret;
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}
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/* Apply customized values from user */
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ret = __v4l2_ctrl_handler_setup(imx219->sd.ctrl_handler);
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if (ret)
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@ -1253,6 +1334,9 @@ static int imx219_probe(struct i2c_client *client)
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/* Initialize source pad */
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imx219->pad.flags = MEDIA_PAD_FL_SOURCE;
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/* Initialize default format */
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imx219_set_default_format(imx219);
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ret = media_entity_pads_init(&imx219->sd.entity, 1, &imx219->pad);
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if (ret) {
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dev_err(dev, "failed to init entity pads: %d\n", ret);
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