diff mbox series

[v3,11/25] media: i2c: imx258: Add get_selection for pixel array information

Message ID 20240403150355.189229-12-git@luigi311.com (mailing list archive)
State Superseded
Headers show
Series imx258 improvement series | expand

Commit Message

Luis Garcia April 3, 2024, 3:03 p.m. UTC
From: Dave Stevenson <dave.stevenson@raspberrypi.com>

Libcamera requires the cropping information for each mode, so
add this information to the driver.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Luis Garcia <git@luigi311.com>
---
 drivers/media/i2c/imx258.c | 90 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)

Comments

Pavel Machek April 3, 2024, 6:46 p.m. UTC | #1
Hi!

> Libcamera requires the cropping information for each mode, so
> add this information to the driver.

> @@ -116,6 +124,9 @@ struct imx258_mode {
>  	u32 link_freq_index;
>  	/* Default register values */
>  	struct imx258_reg_list reg_list;
> +
> +	/* Analog crop rectangle. */

No need for "." at the end, as it is not above.

> +	struct v4l2_rect crop;
>  };

If the crop is same in all modes, should we have it in common place?

Best regards,
								Pavel
Luis Garcia April 6, 2024, 6:36 a.m. UTC | #2
On 4/3/24 12:46, Pavel Machek wrote:
> Hi!
> 
>> Libcamera requires the cropping information for each mode, so
>> add this information to the driver.
> 
>> @@ -116,6 +124,9 @@ struct imx258_mode {
>>  	u32 link_freq_index;
>>  	/* Default register values */
>>  	struct imx258_reg_list reg_list;
>> +
>> +	/* Analog crop rectangle. */
> 
> No need for "." at the end, as it is not above.
> 

Done

>> +	struct v4l2_rect crop;
>>  };
> 
> If the crop is same in all modes, should we have it in common place?
> 
> Best regards,
> 								Pavel

I see the imx219 made a similar change where it was changed from using
that .crop format to just setting it in the set_pad_format function
so we can do something similar here.
Luis Garcia April 9, 2024, 5:23 a.m. UTC | #3
On 4/3/24 12:46, Pavel Machek wrote:
> Hi!
> 
>> Libcamera requires the cropping information for each mode, so
>> add this information to the driver.
> 
>> @@ -116,6 +124,9 @@ struct imx258_mode {
>>  	u32 link_freq_index;
>>  	/* Default register values */
>>  	struct imx258_reg_list reg_list;
>> +
>> +	/* Analog crop rectangle. */
> 
> No need for "." at the end, as it is not above.
> 
>> +	struct v4l2_rect crop;
>>  };
> 
> If the crop is same in all modes, should we have it in common place?
> 
> Best regards,
> 								Pavel

I gave this a try similar to what was done on imx219 but its having
issues and makes a bunch of changes to the following patches so we
might need to hold off on that change for now.
diff mbox series

Patch

diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
index ebc404b548b3..805308b4a4c6 100644
--- a/drivers/media/i2c/imx258.c
+++ b/drivers/media/i2c/imx258.c
@@ -77,6 +77,14 @@ 
 #define REG_CONFIG_MIRROR_FLIP		0x03
 #define REG_CONFIG_FLIP_TEST_PATTERN	0x02
 
+/* IMX258 native and active pixel array size. */
+#define IMX258_NATIVE_WIDTH		4224U
+#define IMX258_NATIVE_HEIGHT		3192U
+#define IMX258_PIXEL_ARRAY_LEFT		8U
+#define IMX258_PIXEL_ARRAY_TOP		16U
+#define IMX258_PIXEL_ARRAY_WIDTH	4208U
+#define IMX258_PIXEL_ARRAY_HEIGHT	3120U
+
 struct imx258_reg {
 	u16 address;
 	u8 val;
@@ -116,6 +124,9 @@  struct imx258_mode {
 	u32 link_freq_index;
 	/* Default register values */
 	struct imx258_reg_list reg_list;
+
+	/* Analog crop rectangle. */
+	struct v4l2_rect crop;
 };
 
 /*
@@ -560,6 +571,12 @@  static const struct imx258_mode supported_modes[] = {
 			.regs = mode_4208x3120_regs,
 		},
 		.link_freq_index = IMX258_LINK_FREQ_1267MBPS,
+		.crop = {
+			.left = IMX258_PIXEL_ARRAY_LEFT,
+			.top = IMX258_PIXEL_ARRAY_TOP,
+			.width = 4208,
+			.height = 3120,
+		},
 	},
 	{
 		.width = 2104,
@@ -571,6 +588,12 @@  static const struct imx258_mode supported_modes[] = {
 			.regs = mode_2104_1560_regs,
 		},
 		.link_freq_index = IMX258_LINK_FREQ_640MBPS,
+		.crop = {
+			.left = IMX258_PIXEL_ARRAY_LEFT,
+			.top = IMX258_PIXEL_ARRAY_TOP,
+			.width = 4208,
+			.height = 3120,
+		},
 	},
 	{
 		.width = 1048,
@@ -582,6 +605,12 @@  static const struct imx258_mode supported_modes[] = {
 			.regs = mode_1048_780_regs,
 		},
 		.link_freq_index = IMX258_LINK_FREQ_640MBPS,
+		.crop = {
+			.left = IMX258_PIXEL_ARRAY_LEFT,
+			.top = IMX258_PIXEL_ARRAY_TOP,
+			.width = 4208,
+			.height = 3120,
+		},
 	},
 };
 
@@ -698,6 +727,7 @@  static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
 {
 	struct v4l2_mbus_framefmt *try_fmt =
 		v4l2_subdev_state_get_format(fh->state, 0);
+	struct v4l2_rect *try_crop;
 
 	/* Initialize try_fmt */
 	try_fmt->width = supported_modes[0].width;
@@ -705,6 +735,13 @@  static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
 	try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
 	try_fmt->field = V4L2_FIELD_NONE;
 
+	/* Initialize try_crop */
+	try_crop = v4l2_subdev_state_get_crop(fh->state, 0);
+	try_crop->left = IMX258_PIXEL_ARRAY_LEFT;
+	try_crop->top = IMX258_PIXEL_ARRAY_TOP;
+	try_crop->width = IMX258_PIXEL_ARRAY_WIDTH;
+	try_crop->height = IMX258_PIXEL_ARRAY_HEIGHT;
+
 	return 0;
 }
 
@@ -952,6 +989,58 @@  static int imx258_set_pad_format(struct v4l2_subdev *sd,
 	return 0;
 }
 
+static const struct v4l2_rect *
+__imx258_get_pad_crop(struct imx258 *imx258,
+		      struct v4l2_subdev_state *sd_state,
+		      unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+	switch (which) {
+	case V4L2_SUBDEV_FORMAT_TRY:
+		return v4l2_subdev_state_get_crop(sd_state, pad);
+	case V4L2_SUBDEV_FORMAT_ACTIVE:
+		return &imx258->cur_mode->crop;
+	}
+
+	return NULL;
+}
+
+static int imx258_get_selection(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *sd_state,
+				struct v4l2_subdev_selection *sel)
+{
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP: {
+		struct imx258 *imx258 = to_imx258(sd);
+
+		mutex_lock(&imx258->mutex);
+		sel->r = *__imx258_get_pad_crop(imx258, sd_state, sel->pad,
+						sel->which);
+		mutex_unlock(&imx258->mutex);
+
+		return 0;
+	}
+
+	case V4L2_SEL_TGT_NATIVE_SIZE:
+		sel->r.left = 0;
+		sel->r.top = 0;
+		sel->r.width = IMX258_NATIVE_WIDTH;
+		sel->r.height = IMX258_NATIVE_HEIGHT;
+
+		return 0;
+
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		sel->r.left = IMX258_PIXEL_ARRAY_LEFT;
+		sel->r.top = IMX258_PIXEL_ARRAY_TOP;
+		sel->r.width = IMX258_PIXEL_ARRAY_WIDTH;
+		sel->r.height = IMX258_PIXEL_ARRAY_HEIGHT;
+
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
 /* Start streaming */
 static int imx258_start_streaming(struct imx258 *imx258)
 {
@@ -1128,6 +1217,7 @@  static const struct v4l2_subdev_pad_ops imx258_pad_ops = {
 	.get_fmt = imx258_get_pad_format,
 	.set_fmt = imx258_set_pad_format,
 	.enum_frame_size = imx258_enum_frame_size,
+	.get_selection = imx258_get_selection,
 };
 
 static const struct v4l2_subdev_ops imx258_subdev_ops = {