From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: Jacopo Mondi <jacopo@jmondi.org>
Cc: mchehab@kernel.org, hverkuil@xs4all.nl,
laurent.pinchart@ideasonboard.com,
roman.kovalivskyi@globallogic.com,
dave.stevenson@raspberrypi.org, naush@raspberrypi.com,
mrodin@de.adit-jv.com, hugues.fruchet@st.com, mripard@kernel.org,
aford173@gmail.com, sudipi@jp.adit-jv.com,
andrew_gabbasov@mentor.com, erosca@de.adit-jv.com,
linux-media@vger.kernel.org, libcamera-devel@lists.libcamera.org
Subject: Re: [PATCH 15/25] media: ov5647: Break out format handling
Date: Fri, 31 Jul 2020 14:44:39 +0300 [thread overview]
Message-ID: <20200731114439.GN13316@paasikivi.fi.intel.com> (raw)
In-Reply-To: <20200623164224.44476-5-jacopo@jmondi.org>
Hi Jacopo,
Btw. I've bounced the two DT binding patches to DT list + Rob. Please
remember that in v2 if there are changes.
On Tue, Jun 23, 2020 at 06:42:24PM +0200, Jacopo Mondi wrote:
> Break format handling out from the main driver structure.
>
> This commit prepares for the introduction of more sensor formats and
> resolutions by instrumenting the existing operation to work on multiple
> modes instead of assuming a single one supported.
>
> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
> ---
> drivers/media/i2c/ov5647.c | 84 +++++++++++++++++++++++++++-----------
> 1 file changed, 61 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/media/i2c/ov5647.c b/drivers/media/i2c/ov5647.c
> index 03f4f1a257ecd..a801ed0249aad 100644
> --- a/drivers/media/i2c/ov5647.c
> +++ b/drivers/media/i2c/ov5647.c
> @@ -84,18 +84,28 @@ struct regval_list {
> u8 data;
> };
>
> +struct ov5647_mode {
> + struct v4l2_mbus_framefmt format;
> + struct regval_list *reg_list;
> + unsigned int num_regs;
> +};
> +
> +struct ov5647_format_list {
> + unsigned int mbus_code;
> + struct ov5647_mode *modes;
> + unsigned int num_modes;
> +};
> +
> struct ov5647 {
> struct v4l2_subdev sd;
> struct media_pad pad;
> struct mutex lock;
> - struct v4l2_mbus_framefmt format;
> - unsigned int width;
> - unsigned int height;
> int power_count;
> struct clk *xclk;
> struct gpio_desc *pwdn;
> bool clock_ncont;
> struct v4l2_ctrl_handler ctrls;
> + struct ov5647_mode *mode;
> };
>
> static inline struct ov5647 *to_sensor(struct v4l2_subdev *sd)
> @@ -205,6 +215,33 @@ static struct regval_list ov5647_640x480[] = {
> {0x0100, 0x01},
> };
>
> +static struct ov5647_mode ov5647_8bit_modes[] = {
const
> + {
> + .format = {
> + .code = MEDIA_BUS_FMT_SBGGR8_1X8,
> + .colorspace = V4L2_COLORSPACE_SRGB,
> + .field = V4L2_FIELD_NONE,
> + .width = 640,
> + .height = 480
> + },
> + .reg_list = ov5647_640x480,
> + .num_regs = ARRAY_SIZE(ov5647_640x480)
> + },
> +};
> +
> +static const struct ov5647_format_list ov5647_formats[] = {
> + {
> + .mbus_code = MEDIA_BUS_FMT_SBGGR8_1X8,
> + .modes = ov5647_8bit_modes,
> + .num_modes = ARRAY_SIZE(ov5647_8bit_modes),
> + },
> +};
> +
> +#define OV5647_NUM_FORMATS (ARRAY_SIZE(ov5647_formats))
Please use ARRAY_SIZE() directly, you don't need a macro here.
> +
> +#define OV5647_DEFAULT_MODE (&ov5647_formats[0].modes[0])
> +#define OV5647_DEFAULT_FORMAT (ov5647_formats[0].modes[0].format)
> +
> static int ov5647_write(struct v4l2_subdev *sd, u16 reg, u8 val)
> {
> unsigned char data[3] = { reg >> 8, reg & 0xff, val};
> @@ -282,8 +319,7 @@ static int ov5647_set_mode(struct v4l2_subdev *sd)
> if (ret < 0)
> return ret;
>
> - ret = ov5647_write_array(sd, ov5647_640x480,
> - ARRAY_SIZE(ov5647_640x480));
> + ret = ov5647_write_array(sd, sensor->mode->reg_list, sensor->mode->num_regs);
No need for a line over 80.
> if (ret < 0) {
> dev_err(&client->dev, "write sensor default regs error\n");
> return ret;
> @@ -494,10 +530,10 @@ static int ov5647_enum_mbus_code(struct v4l2_subdev *sd,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_mbus_code_enum *code)
> {
> - if (code->index > 0)
> + if (code->index >= OV5647_NUM_FORMATS)
> return -EINVAL;
>
> - code->code = MEDIA_BUS_FMT_SBGGR8_1X8;
> + code->code = ov5647_formats[code->index].mbus_code;
>
> return 0;
> }
> @@ -506,16 +542,24 @@ static int ov5647_enum_frame_size(struct v4l2_subdev *sd,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_frame_size_enum *fse)
> {
> - if (fse->index)
> + const struct v4l2_mbus_framefmt *fmt;
> + unsigned int i = 0;
> +
> + for (; i < OV5647_NUM_FORMATS; ++i) {
> + if (ov5647_formats[i].mbus_code == fse->code)
> + break;
> + }
> + if (i == OV5647_NUM_FORMATS)
> return -EINVAL;
>
> - if (fse->code != MEDIA_BUS_FMT_SBGGR8_1X8)
> + if (fse->index >= ov5647_formats[i].num_modes)
> return -EINVAL;
>
> - fse->min_width = 640;
> - fse->max_width = 640;
> - fse->min_height = 480;
> - fse->max_height = 480;
> + fmt = &ov5647_formats[i].modes[fse->index].format;
> + fse->min_width = fmt->width;
> + fse->max_width = fmt->width;
> + fse->min_height = fmt->height;
> + fse->max_height = fmt->height;
>
> return 0;
> }
> @@ -528,11 +572,7 @@ static int ov5647_set_get_fmt(struct v4l2_subdev *sd,
>
> /* Only one format is supported, so return that. */
> memset(fmt, 0, sizeof(*fmt));
> - fmt->code = MEDIA_BUS_FMT_SBGGR8_1X8;
> - fmt->colorspace = V4L2_COLORSPACE_SRGB;
> - fmt->field = V4L2_FIELD_NONE;
> - fmt->width = 640;
> - fmt->height = 480;
> + *fmt = OV5647_DEFAULT_FORMAT;
>
> return 0;
> }
> @@ -591,11 +631,7 @@ static int ov5647_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
> crop->width = OV5647_WINDOW_WIDTH_DEF;
> crop->height = OV5647_WINDOW_HEIGHT_DEF;
>
> - format->code = MEDIA_BUS_FMT_SBGGR8_1X8;
> - format->width = 640;
> - format->height = 480;
> - format->field = V4L2_FIELD_NONE;
> - format->colorspace = V4L2_COLORSPACE_SRGB;
> + *format = OV5647_DEFAULT_FORMAT;
>
> return 0;
> }
> @@ -813,6 +849,8 @@ static int ov5647_probe(struct i2c_client *client)
>
> mutex_init(&sensor->lock);
>
> + sensor->mode = OV5647_DEFAULT_MODE;
You could do this without the macro, too.
> +
> ret = ov5647_init_controls(sensor);
> if (ret)
> goto mutex_destroy;
--
Kind regards,
Sakari Ailus
next prev parent reply other threads:[~2020-07-31 11:44 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 10:07 [PATCH 00/25] media: ov5647: Support RaspberryPi Camera Module v1 Jacopo Mondi
2020-06-23 10:07 ` [PATCH 01/25] dt-bindings: media: ov5647: Document pwdn-gpios Jacopo Mondi
2020-06-23 10:07 ` [PATCH 02/25] dt-bindings: media: ov5647: Document clock-noncontinuous Jacopo Mondi
2020-06-23 10:07 ` [PATCH 03/25] media: ov5647: Add support for PWDN GPIO Jacopo Mondi
2020-07-09 20:04 ` [libcamera-devel] " Dafna Hirschfeld
2020-07-14 12:45 ` Jacopo Mondi
2020-06-23 10:07 ` [PATCH 04/25] media: ov5647: Add support for non-continuous clock mode Jacopo Mondi
2020-06-23 10:07 ` [PATCH 05/25] media: ov5647: Add set_fmt and get_fmt calls Jacopo Mondi
2020-06-23 10:07 ` [PATCH 06/25] media: ov5647: Fix format initialization Jacopo Mondi
2020-06-23 10:07 ` [PATCH 07/25] media: ov5647: Fix style issues Jacopo Mondi
2020-06-23 10:07 ` [PATCH 08/25] media: ov5647: Replace license with SPDX identifier Jacopo Mondi
2020-06-23 10:07 ` [PATCH 09/25] media: ov5647: Fix return value from read/write Jacopo Mondi
2020-06-23 10:08 ` [PATCH 10/25] media: ov5647: Program mode at s_stream(1) time Jacopo Mondi
2020-06-23 16:42 ` [PATCH 11/25] media: ov5647: Implement enum_frame_size() Jacopo Mondi
2020-08-18 7:33 ` Sakari Ailus
2020-08-18 7:38 ` Sakari Ailus
2020-06-23 16:42 ` [PATCH 12/25] media: ov5647: Protect s_stream() with mutex Jacopo Mondi
2020-06-23 16:42 ` [PATCH 13/25] media: ov5647: Support gain, exposure and AWB controls Jacopo Mondi
2020-06-23 16:42 ` [PATCH 14/25] media: ov5647: Rationalize driver structure name Jacopo Mondi
2020-06-23 16:42 ` [PATCH 15/25] media: ov5647: Break out format handling Jacopo Mondi
2020-07-31 11:44 ` Sakari Ailus [this message]
2020-06-23 16:49 ` [PATCH 16/25] media: ov5647: Add support for get_selection() Jacopo Mondi
2020-07-09 19:56 ` [libcamera-devel] " Dafna Hirschfeld
2020-06-23 16:49 ` [PATCH 17/25] media: ov5647: Rename SBGGR8 VGA mode Jacopo Mondi
2020-06-23 16:49 ` [PATCH 18/25] media: ov5647: Add SGGBR10_1X10 modes Jacopo Mondi
2020-06-23 16:49 ` [PATCH 19/25] media: ov5647: Implement set_fmt pad operation Jacopo Mondi
2020-06-29 16:54 ` [libcamera-devel] " Dafna Hirschfeld
2020-06-30 10:13 ` Jacopo Mondi
2020-06-30 11:09 ` Dafna Hirschfeld
2020-06-23 16:55 ` [PATCH 20/25] media: ov5647: Program mode only if it has changed Jacopo Mondi
2020-06-29 17:48 ` Dafna Hirschfeld
2020-06-30 7:43 ` Jacopo Mondi
2020-06-30 9:32 ` Dafna Hirschfeld
2020-06-30 10:06 ` Jacopo Mondi
2020-06-30 10:56 ` Dafna Hirschfeld
2020-06-30 12:05 ` Jacopo Mondi
2020-06-30 13:01 ` Dafna Hirschfeld
2020-06-30 14:53 ` [libcamera-devel] " Dave Stevenson
2020-06-30 15:11 ` Dafna Hirschfeld
2020-07-01 7:25 ` Laurent Pinchart
2020-07-03 12:21 ` Jacopo Mondi
2020-07-03 16:33 ` Laurent Pinchart
2020-06-23 16:55 ` [PATCH 21/25] media: ov5647: Set V4L2_SUBDEV_FL_HAS_EVENTS flag Jacopo Mondi
2020-06-23 16:55 ` [PATCH 22/25] media: ov5647: Support V4L2_CID_PIXEL_RATE Jacopo Mondi
2020-06-29 17:01 ` [libcamera-devel] " Dafna Hirschfeld
2020-06-29 21:25 ` Dave Stevenson
2020-06-30 15:13 ` Dave Stevenson
2020-07-01 7:21 ` Laurent Pinchart
2020-06-23 16:55 ` [PATCH 23/25] media: ov5647: Support V4L2_CID_HBLANK control Jacopo Mondi
2020-06-23 16:55 ` [PATCH 24/25] media: ov5647: Support V4L2_CID_VBLANK control Jacopo Mondi
2020-06-23 16:55 ` [PATCH 25/25] media: ov5647: Advertise the correct exposure range Jacopo Mondi
2020-06-29 17:33 ` [PATCH 00/25] media: ov5647: Support RaspberryPi Camera Module v1 Dafna Hirschfeld
2020-06-29 18:08 ` Dafna Hirschfeld
2020-07-10 15:59 ` Dafna Hirschfeld
2020-07-14 12:48 ` Jacopo Mondi
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