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media: i2c: imx290: Implement HBLANK and VBLANK controls

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Add support for the V4L2_CID_HBLANK and V4L2_CID_VBLANK controls to the
imx290 driver. Make the controls read-only to start with, to report the
values to userspace for timing calculation.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
This commit is contained in:
Laurent Pinchart
2022-10-16 09:15:18 +03:00
committed by Sakari Ailus
parent 72c87b7ad5
commit 0c3b56c905
1 changed files with 32 additions and 1 deletions
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33
drivers/media/i2c/imx290.c
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@@ -146,6 +146,8 @@ struct imx290 {
struct v4l2_ctrl_handler ctrls;
struct v4l2_ctrl *link_freq;
struct v4l2_ctrl *pixel_rate;
struct v4l2_ctrl *hblank;
struct v4l2_ctrl *vblank;
struct mutex lock;
};
@@ -642,6 +644,20 @@ static int imx290_set_fmt(struct v4l2_subdev *sd,
if (imx290->pixel_rate)
__v4l2_ctrl_s_ctrl_int64(imx290->pixel_rate,
imx290_calc_pixel_rate(imx290));
if (imx290->hblank) {
unsigned int hblank = mode->hmax - mode->width;
__v4l2_ctrl_modify_range(imx290->hblank, hblank, hblank,
1, hblank);
}
if (imx290->vblank) {
unsigned int vblank = IMX290_VMAX_DEFAULT - mode->height;
__v4l2_ctrl_modify_range(imx290->vblank, vblank, vblank,
1, vblank);
}
}
*format = fmt->format;
@@ -880,9 +896,10 @@ static const struct media_entity_operations imx290_subdev_entity_ops = {
static int imx290_ctrl_init(struct imx290 *imx290)
{
unsigned int blank;
int ret;
v4l2_ctrl_handler_init(&imx290->ctrls, 5);
v4l2_ctrl_handler_init(&imx290->ctrls, 7);
imx290->ctrls.lock = &imx290->lock;
/*
@@ -923,6 +940,20 @@ static int imx290_ctrl_init(struct imx290 *imx290)
ARRAY_SIZE(imx290_test_pattern_menu) - 1,
0, 0, imx290_test_pattern_menu);
blank = imx290->current_mode->hmax - imx290->current_mode->width;
imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
V4L2_CID_HBLANK, blank, blank, 1,
blank);
if (imx290->hblank)
imx290->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
blank = IMX290_VMAX_DEFAULT - imx290->current_mode->height;
imx290->vblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
V4L2_CID_VBLANK, blank, blank, 1,
blank);
if (imx290->vblank)
imx290->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
imx290->sd.ctrl_handler = &imx290->ctrls;
if (imx290->ctrls.error) {