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media: i2c: ov2685: Add .get_selection() support

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Add support for the .get_selection() pad operation to the ov2685 sensor
driver.

Report the native sensor size (pixel array), the crop bounds (readable
pixel array area) and the current and default analog crop rectangles.

Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Luca Weiss 2023-02-01 18:07:01 +01:00 committed by Mauro Carvalho Chehab
parent 36cc66b082
commit 859128ab6f
1 changed files with 61 additions and 0 deletions
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61
drivers/media/i2c/ov2685.c
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@ -56,6 +56,9 @@
#define OV2685_REG_VALUE_16BIT 2
#define OV2685_REG_VALUE_24BIT 3
#define OV2685_NATIVE_WIDTH 1616
#define OV2685_NATIVE_HEIGHT 1216
#define OV2685_LANES 1
#define OV2685_BITS_PER_SAMPLE 10
@ -78,6 +81,7 @@ struct ov2685_mode {
u32 exp_def;
u32 hts_def;
u32 vts_def;
const struct v4l2_rect *analog_crop;
const struct regval *reg_list;
};
@ -231,6 +235,13 @@ static const int ov2685_test_pattern_val[] = {
OV2685_TEST_PATTERN_COLOR_SQUARE,
};
static const struct v4l2_rect ov2685_analog_crop = {
.left = 8,
.top = 8,
.width = 1600,
.height = 1200,
};
static const struct ov2685_mode supported_modes[] = {
{
.width = 1600,
@ -238,6 +249,7 @@ static const struct ov2685_mode supported_modes[] = {
.exp_def = 0x04ee,
.hts_def = 0x06a4,
.vts_def = 0x050e,
.analog_crop = &ov2685_analog_crop,
.reg_list = ov2685_1600x1200_regs,
},
};
@ -384,6 +396,53 @@ static int ov2685_enum_frame_sizes(struct v4l2_subdev *sd,
return 0;
}
static const struct v4l2_rect *
__ov2685_get_pad_crop(struct ov2685 *ov2685,
struct v4l2_subdev_state *state, unsigned int pad,
enum v4l2_subdev_format_whence which)
{
const struct ov2685_mode *mode = ov2685->cur_mode;
switch (which) {
case V4L2_SUBDEV_FORMAT_TRY:
return v4l2_subdev_get_try_crop(&ov2685->subdev, state, pad);
case V4L2_SUBDEV_FORMAT_ACTIVE:
return mode->analog_crop;
}
return NULL;
}
static int ov2685_get_selection(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_selection *sel)
{
struct ov2685 *ov2685 = to_ov2685(sd);
switch (sel->target) {
case V4L2_SEL_TGT_CROP:
mutex_lock(&ov2685->mutex);
sel->r = *__ov2685_get_pad_crop(ov2685, sd_state, sel->pad,
sel->which);
mutex_unlock(&ov2685->mutex);
break;
case V4L2_SEL_TGT_NATIVE_SIZE:
case V4L2_SEL_TGT_CROP_BOUNDS:
sel->r.top = 0;
sel->r.left = 0;
sel->r.width = OV2685_NATIVE_WIDTH;
sel->r.height = OV2685_NATIVE_HEIGHT;
break;
case V4L2_SEL_TGT_CROP_DEFAULT:
sel->r = ov2685_analog_crop;
break;
default:
return -EINVAL;
}
return 0;
}
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 ov2685_cal_delay(u32 cycles)
{
@ -592,6 +651,8 @@ static const struct v4l2_subdev_pad_ops ov2685_pad_ops = {
.enum_frame_size = ov2685_enum_frame_sizes,
.get_fmt = ov2685_get_fmt,
.set_fmt = ov2685_set_fmt,
.get_selection = ov2685_get_selection,
.set_selection = ov2685_get_selection,
};
static const struct v4l2_subdev_ops ov2685_subdev_ops = {