diff mbox series

media: imx274: add support for sensor mode6, 1280x540

Message ID 20200909105328.92598-1-eugen.hristev@microchip.com (mailing list archive)
State New, archived
Headers show
Series media: imx274: add support for sensor mode6, 1280x540 | expand

Commit Message

Eugen Hristev Sept. 9, 2020, 10:53 a.m. UTC
Add support for the mode 6 for the sensor, this mode uses
3/8 subsampling and 3 horizontal binning.
Aspect ratio is changed.
Split the bin_ratio variable into two parts, one for
width and one for height, as the ratio is no longer preserved
when doing subsampling in this mode.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
 drivers/media/i2c/imx274.c | 89 +++++++++++++++++++++++++++++++-------
 1 file changed, 73 insertions(+), 16 deletions(-)

Comments

Sakari Ailus Sept. 11, 2020, 9:44 p.m. UTC | #1
Hi Eugen,

Thanks for the patch.

On Wed, Sep 09, 2020 at 01:53:28PM +0300, Eugen Hristev wrote:
> Add support for the mode 6 for the sensor, this mode uses
> 3/8 subsampling and 3 horizontal binning.
> Aspect ratio is changed.
> Split the bin_ratio variable into two parts, one for
> width and one for height, as the ratio is no longer preserved
> when doing subsampling in this mode.
> 
> Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
> ---
>  drivers/media/i2c/imx274.c | 89 +++++++++++++++++++++++++++++++-------
>  1 file changed, 73 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/media/i2c/imx274.c b/drivers/media/i2c/imx274.c
> index e6aa9f32b6a8..5adb11f036e2 100644
> --- a/drivers/media/i2c/imx274.c
> +++ b/drivers/media/i2c/imx274.c
> @@ -147,8 +147,9 @@ static const struct regmap_config imx274_regmap_config = {
>  
>  enum imx274_binning {
>  	IMX274_BINNING_OFF,
> -	IMX274_BINNING_2_1,
> -	IMX274_BINNING_3_1,
> +	IMX274_BINNING_2_2,
> +	IMX274_BINNING_3_3,
> +	IMX274_BINNING_4_3,

This enum is unused (apart from the useless use of the first value). Please
remove it (may be a new patch).

>  };
>  
>  /*
> @@ -158,7 +159,8 @@ enum imx274_binning {
>   * implemented modes.
>   *
>   * @init_regs: registers to initialize the mode
> - * @bin_ratio: downscale factor (e.g. 3 for 3:1 binning)
> + * @wbin_ratio: width downscale factor (e.g. 3 for 1280; 3 = 3840/1280)
> + * @hbin_ratio: height downscale factor (e.g. 3 for 720; 3 = 2160/720)
>   * @min_frame_len: Minimum frame length for each mode (see "Frame Rate
>   *                 Adjustment (CSI-2)" in the datasheet)
>   * @min_SHR: Minimum SHR register value (see "Shutter Setting (CSI-2)" in the
> @@ -169,7 +171,8 @@ enum imx274_binning {
>   */
>  struct imx274_mode {
>  	const struct reg_8 *init_regs;
> -	unsigned int bin_ratio;
> +	unsigned int wbin_ratio;
> +	unsigned int hbin_ratio;

These could be char or short.

>  	int min_frame_len;
>  	int min_SHR;
>  	int max_fps;
> @@ -332,6 +335,46 @@ static const struct reg_8 imx274_mode5_1280x720_raw10[] = {
>  	{IMX274_TABLE_END, 0x00}
>  };
>  
> +/*
> + * Vertical 2/8 subsampling horizontal 3 binning
> + * imx274 mode6(refer to datasheet) register configuration with
> + * 1280x540 resolution, raw10 data and mipi four lane output
> + */
> +static const struct reg_8 imx274_mode6_1280x540_raw10[] = {
> +	{0x3004, 0x04}, /* mode setting */
> +	{0x3005, 0x31},
> +	{0x3006, 0x00},
> +	{0x3007, 0x02}, /* mode setting */
> +
> +	{0x3018, 0xA2}, /* output XVS, HVS */
> +
> +	{0x306B, 0x05},
> +	{0x30E2, 0x04}, /* mode setting */
> +
> +	{0x30EE, 0x01},
> +	{0x3342, 0x0A},
> +	{0x3343, 0x00},
> +	{0x3344, 0x16},
> +	{0x3345, 0x00},
> +	{0x33A6, 0x01},
> +	{0x3528, 0x0E},
> +	{0x3554, 0x1F},
> +	{0x3555, 0x01},
> +	{0x3556, 0x01},
> +	{0x3557, 0x01},
> +	{0x3558, 0x01},
> +	{0x3559, 0x00},
> +	{0x355A, 0x00},
> +	{0x35BA, 0x0E},
> +	{0x366A, 0x1B},
> +	{0x366B, 0x1A},
> +	{0x366C, 0x19},
> +	{0x366D, 0x17},
> +	{0x3A41, 0x04},
> +
> +	{IMX274_TABLE_END, 0x00}
> +};
> +
>  /*
>   * imx274 first step register configuration for
>   * starting stream
> @@ -445,7 +488,8 @@ static const struct reg_8 imx274_tp_regs[] = {
>  static const struct imx274_mode imx274_modes[] = {
>  	{
>  		/* mode 1, 4K */
> -		.bin_ratio = 1,
> +		.wbin_ratio = 1, /* 3840 */
> +		.hbin_ratio = 1, /* 2160 */
>  		.init_regs = imx274_mode1_3840x2160_raw10,
>  		.min_frame_len = 4550,
>  		.min_SHR = 12,
> @@ -454,7 +498,8 @@ static const struct imx274_mode imx274_modes[] = {
>  	},
>  	{
>  		/* mode 3, 1080p */
> -		.bin_ratio = 2,
> +		.wbin_ratio = 2, /* 1620 */
> +		.hbin_ratio = 2, /* 1080 */
>  		.init_regs = imx274_mode3_1920x1080_raw10,
>  		.min_frame_len = 2310,
>  		.min_SHR = 8,
> @@ -463,13 +508,24 @@ static const struct imx274_mode imx274_modes[] = {
>  	},
>  	{
>  		/* mode 5, 720p */
> -		.bin_ratio = 3,
> +		.wbin_ratio = 3, /* 1280 */
> +		.hbin_ratio = 3, /* 720 */
>  		.init_regs = imx274_mode5_1280x720_raw10,
>  		.min_frame_len = 2310,
>  		.min_SHR = 8,
>  		.max_fps = 120,
>  		.nocpiop = 112,
>  	},
> +	{
> +		/* mode 6, 540p */
> +		.wbin_ratio = 3, /* 1280 */
> +		.hbin_ratio = 4, /* 540 */
> +		.init_regs = imx274_mode6_1280x540_raw10,
> +		.min_frame_len = 2310,
> +		.min_SHR = 4,
> +		.max_fps = 120,
> +		.nocpiop = 112,
> +	},
>  };
>  
>  /*
> @@ -892,12 +948,13 @@ static int __imx274_change_compose(struct stimx274 *imx274,
>  	}
>  
>  	for (i = 0; i < ARRAY_SIZE(imx274_modes); i++) {
> -		unsigned int ratio = imx274_modes[i].bin_ratio;
> +		unsigned int wratio = imx274_modes[i].wbin_ratio;
> +		unsigned int hratio = imx274_modes[i].hbin_ratio;
>  
>  		int goodness = imx274_binning_goodness(
>  			imx274,
> -			cur_crop->width / ratio, *width,
> -			cur_crop->height / ratio, *height,
> +			cur_crop->width / wratio, *width,
> +			cur_crop->height / hratio, *height,
>  			flags);
>  
>  		if (goodness >= best_goodness) {
> @@ -906,14 +963,14 @@ static int __imx274_change_compose(struct stimx274 *imx274,
>  		}
>  	}
>  
> -	*width = cur_crop->width / best_mode->bin_ratio;
> -	*height = cur_crop->height / best_mode->bin_ratio;
> +	*width = cur_crop->width / best_mode->wbin_ratio;
> +	*height = cur_crop->height / best_mode->hbin_ratio;
>  
>  	if (which == V4L2_SUBDEV_FORMAT_ACTIVE)
>  		imx274->mode = best_mode;
>  
> -	dev_dbg(dev, "%s: selected %u:1 binning\n",
> -		__func__, best_mode->bin_ratio);
> +	dev_dbg(dev, "%s: selected %u:%u binning\n",

I think the earlier message suggested it was ratio. How about "x"
instead of a colon?

Apart from these looks good to me.

> +		__func__, best_mode->wbin_ratio, best_mode->hbin_ratio);
>  
>  	tgt_fmt->width = *width;
>  	tgt_fmt->height = *height;
> @@ -1840,8 +1897,8 @@ static int imx274_probe(struct i2c_client *client)
>  	imx274->mode = &imx274_modes[IMX274_DEFAULT_BINNING];
>  	imx274->crop.width = IMX274_MAX_WIDTH;
>  	imx274->crop.height = IMX274_MAX_HEIGHT;
> -	imx274->format.width = imx274->crop.width / imx274->mode->bin_ratio;
> -	imx274->format.height = imx274->crop.height / imx274->mode->bin_ratio;
> +	imx274->format.width = imx274->crop.width / imx274->mode->wbin_ratio;
> +	imx274->format.height = imx274->crop.height / imx274->mode->hbin_ratio;
>  	imx274->format.field = V4L2_FIELD_NONE;
>  	imx274->format.code = MEDIA_BUS_FMT_SRGGB10_1X10;
>  	imx274->format.colorspace = V4L2_COLORSPACE_SRGB;
Luca Ceresoli Sept. 14, 2020, 7:48 a.m. UTC | #2
Hi,

On 11/09/20 23:44, Sakari Ailus wrote:
> Hi Eugen,
> 
> Thanks for the patch.
> 
> On Wed, Sep 09, 2020 at 01:53:28PM +0300, Eugen Hristev wrote:
>> Add support for the mode 6 for the sensor, this mode uses
>> 3/8 subsampling and 3 horizontal binning.
>> Aspect ratio is changed.
>> Split the bin_ratio variable into two parts, one for
>> width and one for height, as the ratio is no longer preserved
>> when doing subsampling in this mode.
>>
>> Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
>> ---
>>  drivers/media/i2c/imx274.c | 89 +++++++++++++++++++++++++++++++-------
>>  1 file changed, 73 insertions(+), 16 deletions(-)
>>
>> diff --git a/drivers/media/i2c/imx274.c b/drivers/media/i2c/imx274.c
>> index e6aa9f32b6a8..5adb11f036e2 100644
>> --- a/drivers/media/i2c/imx274.c
>> +++ b/drivers/media/i2c/imx274.c
>> @@ -147,8 +147,9 @@ static const struct regmap_config imx274_regmap_config = {
>>  
>>  enum imx274_binning {
>>  	IMX274_BINNING_OFF,
>> -	IMX274_BINNING_2_1,
>> -	IMX274_BINNING_3_1,
>> +	IMX274_BINNING_2_2,
>> +	IMX274_BINNING_3_3,
>> +	IMX274_BINNING_4_3,
> 
> This enum is unused (apart from the useless use of the first value). Please
> remove it (may be a new patch).

I agree.

[...]

>> @@ -454,7 +498,8 @@ static const struct imx274_mode imx274_modes[] = {
>>  	},
>>  	{
>>  		/* mode 3, 1080p */
>> -		.bin_ratio = 2,
>> +		.wbin_ratio = 2, /* 1620 */

s/1620/1920/

[...]

>> @@ -906,14 +963,14 @@ static int __imx274_change_compose(struct stimx274 *imx274,
>>  		}
>>  	}
>>  
>> -	*width = cur_crop->width / best_mode->bin_ratio;
>> -	*height = cur_crop->height / best_mode->bin_ratio;
>> +	*width = cur_crop->width / best_mode->wbin_ratio;
>> +	*height = cur_crop->height / best_mode->hbin_ratio;
>>  
>>  	if (which == V4L2_SUBDEV_FORMAT_ACTIVE)
>>  		imx274->mode = best_mode;
>>  
>> -	dev_dbg(dev, "%s: selected %u:1 binning\n",
>> -		__func__, best_mode->bin_ratio);
>> +	dev_dbg(dev, "%s: selected %u:%u binning\n",
> 
> I think the earlier message suggested it was ratio. How about "x"
> instead of a colon?
> 
> Apart from these looks good to me.

LGTM too.
diff mbox series

Patch

diff --git a/drivers/media/i2c/imx274.c b/drivers/media/i2c/imx274.c
index e6aa9f32b6a8..5adb11f036e2 100644
--- a/drivers/media/i2c/imx274.c
+++ b/drivers/media/i2c/imx274.c
@@ -147,8 +147,9 @@  static const struct regmap_config imx274_regmap_config = {
 
 enum imx274_binning {
 	IMX274_BINNING_OFF,
-	IMX274_BINNING_2_1,
-	IMX274_BINNING_3_1,
+	IMX274_BINNING_2_2,
+	IMX274_BINNING_3_3,
+	IMX274_BINNING_4_3,
 };
 
 /*
@@ -158,7 +159,8 @@  enum imx274_binning {
  * implemented modes.
  *
  * @init_regs: registers to initialize the mode
- * @bin_ratio: downscale factor (e.g. 3 for 3:1 binning)
+ * @wbin_ratio: width downscale factor (e.g. 3 for 1280; 3 = 3840/1280)
+ * @hbin_ratio: height downscale factor (e.g. 3 for 720; 3 = 2160/720)
  * @min_frame_len: Minimum frame length for each mode (see "Frame Rate
  *                 Adjustment (CSI-2)" in the datasheet)
  * @min_SHR: Minimum SHR register value (see "Shutter Setting (CSI-2)" in the
@@ -169,7 +171,8 @@  enum imx274_binning {
  */
 struct imx274_mode {
 	const struct reg_8 *init_regs;
-	unsigned int bin_ratio;
+	unsigned int wbin_ratio;
+	unsigned int hbin_ratio;
 	int min_frame_len;
 	int min_SHR;
 	int max_fps;
@@ -332,6 +335,46 @@  static const struct reg_8 imx274_mode5_1280x720_raw10[] = {
 	{IMX274_TABLE_END, 0x00}
 };
 
+/*
+ * Vertical 2/8 subsampling horizontal 3 binning
+ * imx274 mode6(refer to datasheet) register configuration with
+ * 1280x540 resolution, raw10 data and mipi four lane output
+ */
+static const struct reg_8 imx274_mode6_1280x540_raw10[] = {
+	{0x3004, 0x04}, /* mode setting */
+	{0x3005, 0x31},
+	{0x3006, 0x00},
+	{0x3007, 0x02}, /* mode setting */
+
+	{0x3018, 0xA2}, /* output XVS, HVS */
+
+	{0x306B, 0x05},
+	{0x30E2, 0x04}, /* mode setting */
+
+	{0x30EE, 0x01},
+	{0x3342, 0x0A},
+	{0x3343, 0x00},
+	{0x3344, 0x16},
+	{0x3345, 0x00},
+	{0x33A6, 0x01},
+	{0x3528, 0x0E},
+	{0x3554, 0x1F},
+	{0x3555, 0x01},
+	{0x3556, 0x01},
+	{0x3557, 0x01},
+	{0x3558, 0x01},
+	{0x3559, 0x00},
+	{0x355A, 0x00},
+	{0x35BA, 0x0E},
+	{0x366A, 0x1B},
+	{0x366B, 0x1A},
+	{0x366C, 0x19},
+	{0x366D, 0x17},
+	{0x3A41, 0x04},
+
+	{IMX274_TABLE_END, 0x00}
+};
+
 /*
  * imx274 first step register configuration for
  * starting stream
@@ -445,7 +488,8 @@  static const struct reg_8 imx274_tp_regs[] = {
 static const struct imx274_mode imx274_modes[] = {
 	{
 		/* mode 1, 4K */
-		.bin_ratio = 1,
+		.wbin_ratio = 1, /* 3840 */
+		.hbin_ratio = 1, /* 2160 */
 		.init_regs = imx274_mode1_3840x2160_raw10,
 		.min_frame_len = 4550,
 		.min_SHR = 12,
@@ -454,7 +498,8 @@  static const struct imx274_mode imx274_modes[] = {
 	},
 	{
 		/* mode 3, 1080p */
-		.bin_ratio = 2,
+		.wbin_ratio = 2, /* 1620 */
+		.hbin_ratio = 2, /* 1080 */
 		.init_regs = imx274_mode3_1920x1080_raw10,
 		.min_frame_len = 2310,
 		.min_SHR = 8,
@@ -463,13 +508,24 @@  static const struct imx274_mode imx274_modes[] = {
 	},
 	{
 		/* mode 5, 720p */
-		.bin_ratio = 3,
+		.wbin_ratio = 3, /* 1280 */
+		.hbin_ratio = 3, /* 720 */
 		.init_regs = imx274_mode5_1280x720_raw10,
 		.min_frame_len = 2310,
 		.min_SHR = 8,
 		.max_fps = 120,
 		.nocpiop = 112,
 	},
+	{
+		/* mode 6, 540p */
+		.wbin_ratio = 3, /* 1280 */
+		.hbin_ratio = 4, /* 540 */
+		.init_regs = imx274_mode6_1280x540_raw10,
+		.min_frame_len = 2310,
+		.min_SHR = 4,
+		.max_fps = 120,
+		.nocpiop = 112,
+	},
 };
 
 /*
@@ -892,12 +948,13 @@  static int __imx274_change_compose(struct stimx274 *imx274,
 	}
 
 	for (i = 0; i < ARRAY_SIZE(imx274_modes); i++) {
-		unsigned int ratio = imx274_modes[i].bin_ratio;
+		unsigned int wratio = imx274_modes[i].wbin_ratio;
+		unsigned int hratio = imx274_modes[i].hbin_ratio;
 
 		int goodness = imx274_binning_goodness(
 			imx274,
-			cur_crop->width / ratio, *width,
-			cur_crop->height / ratio, *height,
+			cur_crop->width / wratio, *width,
+			cur_crop->height / hratio, *height,
 			flags);
 
 		if (goodness >= best_goodness) {
@@ -906,14 +963,14 @@  static int __imx274_change_compose(struct stimx274 *imx274,
 		}
 	}
 
-	*width = cur_crop->width / best_mode->bin_ratio;
-	*height = cur_crop->height / best_mode->bin_ratio;
+	*width = cur_crop->width / best_mode->wbin_ratio;
+	*height = cur_crop->height / best_mode->hbin_ratio;
 
 	if (which == V4L2_SUBDEV_FORMAT_ACTIVE)
 		imx274->mode = best_mode;
 
-	dev_dbg(dev, "%s: selected %u:1 binning\n",
-		__func__, best_mode->bin_ratio);
+	dev_dbg(dev, "%s: selected %u:%u binning\n",
+		__func__, best_mode->wbin_ratio, best_mode->hbin_ratio);
 
 	tgt_fmt->width = *width;
 	tgt_fmt->height = *height;
@@ -1840,8 +1897,8 @@  static int imx274_probe(struct i2c_client *client)
 	imx274->mode = &imx274_modes[IMX274_DEFAULT_BINNING];
 	imx274->crop.width = IMX274_MAX_WIDTH;
 	imx274->crop.height = IMX274_MAX_HEIGHT;
-	imx274->format.width = imx274->crop.width / imx274->mode->bin_ratio;
-	imx274->format.height = imx274->crop.height / imx274->mode->bin_ratio;
+	imx274->format.width = imx274->crop.width / imx274->mode->wbin_ratio;
+	imx274->format.height = imx274->crop.height / imx274->mode->hbin_ratio;
 	imx274->format.field = V4L2_FIELD_NONE;
 	imx274->format.code = MEDIA_BUS_FMT_SRGGB10_1X10;
 	imx274->format.colorspace = V4L2_COLORSPACE_SRGB;