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media: i2c: imx258: Make HFLIP and VFLIP controls writable

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The sensor supports H & V flips, but the controls were READ_ONLY.

Note that the Bayer order changes with these flips, therefore
they set the V4L2_CTRL_FLAG_MODIFY_LAYOUT property.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Luis Garcia <git@luigi311.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Dave Stevenson 2024-05-01 09:24:37 -06:00 committed by Hans Verkuil
parent 799c46e849
commit 4c05213aee
1 changed files with 65 additions and 35 deletions
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100
drivers/media/i2c/imx258.c
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@ -78,8 +78,8 @@
/* Orientation */
#define REG_MIRROR_FLIP_CONTROL 0x0101
#define REG_CONFIG_MIRROR_FLIP 0x03
#define REG_CONFIG_FLIP_TEST_PATTERN 0x02
#define REG_CONFIG_MIRROR_HFLIP 0x01
#define REG_CONFIG_MIRROR_VFLIP 0x02
/* IMX258 native and active pixel array size. */
#define IMX258_NATIVE_WIDTH 4224U
@ -484,6 +484,23 @@ static const struct imx258_variant_cfg imx258_pdaf_cfg = {
.num_regs = ARRAY_SIZE(imx258_pdaf_cfg_regs),
};
/*
* The supported formats.
* This table MUST contain 4 entries per format, to cover the various flip
* combinations in the order
* - no flip
* - h flip
* - v flip
* - h&v flips
*/
static const u32 codes[] = {
/* 10-bit modes. */
MEDIA_BUS_FMT_SRGGB10_1X10,
MEDIA_BUS_FMT_SGRBG10_1X10,
MEDIA_BUS_FMT_SGBRG10_1X10,
MEDIA_BUS_FMT_SBGGR10_1X10
};
static const char * const imx258_test_pattern_menu[] = {
"Disabled",
"Solid Colour",
@ -670,6 +687,8 @@ struct imx258 {
struct v4l2_ctrl *vblank;
struct v4l2_ctrl *hblank;
struct v4l2_ctrl *exposure;
struct v4l2_ctrl *hflip;
struct v4l2_ctrl *vflip;
/* Current mode */
const struct imx258_mode *cur_mode;
@ -768,9 +787,23 @@ static int imx258_write_regs(struct imx258 *imx258,
return 0;
}
/* Get bayer order based on flip setting. */
static u32 imx258_get_format_code(const struct imx258 *imx258)
{
unsigned int i;
lockdep_assert_held(&imx258->mutex);
i = (imx258->vflip->val ? 2 : 0) |
(imx258->hflip->val ? 1 : 0);
return codes[i];
}
/* Open sub-device */
static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct imx258 *imx258 = to_imx258(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_state_get_format(fh->state, 0);
struct v4l2_rect *try_crop;
@ -778,7 +811,7 @@ static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
/* Initialize try_fmt */
try_fmt->width = supported_modes[0].width;
try_fmt->height = supported_modes[0].height;
try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
try_fmt->code = imx258_get_format_code(imx258);
try_fmt->field = V4L2_FIELD_NONE;
/* Initialize try_crop */
@ -871,10 +904,6 @@ static int imx258_set_ctrl(struct v4l2_ctrl *ctrl)
ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN,
IMX258_REG_VALUE_16BIT,
ctrl->val);
ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL,
IMX258_REG_VALUE_08BIT,
!ctrl->val ? REG_CONFIG_MIRROR_FLIP :
REG_CONFIG_FLIP_TEST_PATTERN);
break;
case V4L2_CID_WIDE_DYNAMIC_RANGE:
if (!ctrl->val) {
@ -897,6 +926,15 @@ static int imx258_set_ctrl(struct v4l2_ctrl *ctrl)
IMX258_REG_VALUE_16BIT,
imx258->cur_mode->height + ctrl->val);
break;
case V4L2_CID_VFLIP:
case V4L2_CID_HFLIP:
ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL,
IMX258_REG_VALUE_08BIT,
(imx258->hflip->val ?
REG_CONFIG_MIRROR_HFLIP : 0) |
(imx258->vflip->val ?
REG_CONFIG_MIRROR_VFLIP : 0));
break;
default:
dev_info(&client->dev,
"ctrl(id:0x%x,val:0x%x) is not handled\n",
@ -918,11 +956,13 @@ static int imx258_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
/* Only one bayer order(GRBG) is supported */
struct imx258 *imx258 = to_imx258(sd);
/* Only one bayer format (10 bit) is supported */
if (code->index > 0)
return -EINVAL;
code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
code->code = imx258_get_format_code(imx258);
return 0;
}
@ -931,10 +971,11 @@ static int imx258_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
struct imx258 *imx258 = to_imx258(sd);
if (fse->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
if (fse->code != imx258_get_format_code(imx258))
return -EINVAL;
fse->min_width = supported_modes[fse->index].width;
@ -945,12 +986,13 @@ static int imx258_enum_frame_size(struct v4l2_subdev *sd,
return 0;
}
static void imx258_update_pad_format(const struct imx258_mode *mode,
static void imx258_update_pad_format(struct imx258 *imx258,
const struct imx258_mode *mode,
struct v4l2_subdev_format *fmt)
{
fmt->format.width = mode->width;
fmt->format.height = mode->height;
fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
fmt->format.code = imx258_get_format_code(imx258);
fmt->format.field = V4L2_FIELD_NONE;
}
@ -962,7 +1004,7 @@ static int __imx258_get_pad_format(struct imx258 *imx258,
fmt->format = *v4l2_subdev_state_get_format(sd_state,
fmt->pad);
else
imx258_update_pad_format(imx258->cur_mode, fmt);
imx258_update_pad_format(imx258, imx258->cur_mode, fmt);
return 0;
}
@ -998,13 +1040,12 @@ static int imx258_set_pad_format(struct v4l2_subdev *sd,
mutex_lock(&imx258->mutex);
/* Only one raw bayer(GBRG) order is supported */
fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
fmt->format.code = imx258_get_format_code(imx258);
mode = v4l2_find_nearest_size(supported_modes,
ARRAY_SIZE(supported_modes), width, height,
fmt->format.width, fmt->format.height);
imx258_update_pad_format(mode, fmt);
imx258_update_pad_format(imx258, mode, fmt);
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
framefmt = v4l2_subdev_state_get_format(sd_state, fmt->pad);
*framefmt = fmt->format;
@ -1154,15 +1195,6 @@ static int imx258_start_streaming(struct imx258 *imx258)
return ret;
}
/* Set Orientation be 180 degree */
ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL,
IMX258_REG_VALUE_08BIT, REG_CONFIG_MIRROR_FLIP);
if (ret) {
dev_err(&client->dev, "%s failed to set orientation\n",
__func__);
return ret;
}
/* Apply customized values from user */
ret = __v4l2_ctrl_handler_setup(imx258->sd.ctrl_handler);
if (ret)
@ -1315,7 +1347,6 @@ static int imx258_init_controls(struct imx258 *imx258)
struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
const struct imx258_link_freq_config *link_freq_cfgs;
struct v4l2_fwnode_device_properties props;
struct v4l2_ctrl *vflip, *hflip;
struct v4l2_ctrl_handler *ctrl_hdlr;
const struct imx258_link_cfg *link_cfg;
s64 vblank_def;
@ -1340,16 +1371,15 @@ static int imx258_init_controls(struct imx258 *imx258)
if (imx258->link_freq)
imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
/* The driver only supports one bayer order and flips by default. */
hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops,
V4L2_CID_HFLIP, 1, 1, 1, 1);
if (hflip)
hflip->flags |= V4L2_CTRL_FLAG_READ_ONLY;
imx258->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops,
V4L2_CID_HFLIP, 0, 1, 1, 1);
if (imx258->hflip)
imx258->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops,
V4L2_CID_VFLIP, 1, 1, 1, 1);
if (vflip)
vflip->flags |= V4L2_CTRL_FLAG_READ_ONLY;
imx258->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 1);
if (imx258->vflip)
imx258->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
link_freq_cfgs = &imx258->link_freq_configs[0];
link_cfg = link_freq_cfgs[imx258->lane_mode_idx].link_cfg;