Hi Laurent,
On 22/04/18 23:34, Laurent Pinchart wrote:
> The implementation of the set_fmt pad operation is identical in the
> three modules. Move it to a generic helper function.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
Only a minor pair of comments below regarding source/sink pad descriptions.
If it's not convenient/accurate to define these with an enum then don't worry
about it.
Otherwise,
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
> ---
> drivers/media/platform/vsp1/vsp1_clu.c | 65 +++++----------------------
> drivers/media/platform/vsp1/vsp1_entity.c | 75 +++++++++++++++++++++++++++++++
> drivers/media/platform/vsp1/vsp1_entity.h | 6 +++
> drivers/media/platform/vsp1/vsp1_lif.c | 65 +++++----------------------
> drivers/media/platform/vsp1/vsp1_lut.c | 65 +++++----------------------
> 5 files changed, 116 insertions(+), 160 deletions(-)
That's a nice diffstat :-)
>
> diff --git a/drivers/media/platform/vsp1/vsp1_clu.c b/drivers/media/platform/vsp1/vsp1_clu.c
> index 9626b6308585..96a448e1504c 100644
> --- a/drivers/media/platform/vsp1/vsp1_clu.c
> +++ b/drivers/media/platform/vsp1/vsp1_clu.c
> @@ -114,18 +114,18 @@ static const struct v4l2_ctrl_config clu_mode_control = {
> * V4L2 Subdevice Pad Operations
> */
>
> +static const unsigned int clu_codes[] = {
> + MEDIA_BUS_FMT_ARGB8888_1X32,
> + MEDIA_BUS_FMT_AHSV8888_1X32,
> + MEDIA_BUS_FMT_AYUV8_1X32,
> +};
> +
> static int clu_enum_mbus_code(struct v4l2_subdev *subdev,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_mbus_code_enum *code)
> {
> - static const unsigned int codes[] = {
> - MEDIA_BUS_FMT_ARGB8888_1X32,
> - MEDIA_BUS_FMT_AHSV8888_1X32,
> - MEDIA_BUS_FMT_AYUV8_1X32,
> - };
> -
> - return vsp1_subdev_enum_mbus_code(subdev, cfg, code, codes,
> - ARRAY_SIZE(codes));
> + return vsp1_subdev_enum_mbus_code(subdev, cfg, code, clu_codes,
> + ARRAY_SIZE(clu_codes));
> }
>
> static int clu_enum_frame_size(struct v4l2_subdev *subdev,
> @@ -141,51 +141,10 @@ static int clu_set_format(struct v4l2_subdev *subdev,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_format *fmt)
> {
> - struct vsp1_clu *clu = to_clu(subdev);
> - struct v4l2_subdev_pad_config *config;
> - struct v4l2_mbus_framefmt *format;
> - int ret = 0;
> -
> - mutex_lock(&clu->entity.lock);
> -
> - config = vsp1_entity_get_pad_config(&clu->entity, cfg, fmt->which);
> - if (!config) {
> - ret = -EINVAL;
> - goto done;
> - }
> -
> - /* Default to YUV if the requested format is not supported. */
> - if (fmt->format.code != MEDIA_BUS_FMT_ARGB8888_1X32 &&
> - fmt->format.code != MEDIA_BUS_FMT_AHSV8888_1X32 &&
> - fmt->format.code != MEDIA_BUS_FMT_AYUV8_1X32)
> - fmt->format.code = MEDIA_BUS_FMT_AYUV8_1X32;
> -
> - format = vsp1_entity_get_pad_format(&clu->entity, config, fmt->pad);
> -
> - if (fmt->pad == CLU_PAD_SOURCE) {
> - /* The CLU output format can't be modified. */
> - fmt->format = *format;
> - goto done;
> - }
> -
> - format->code = fmt->format.code;
> - format->width = clamp_t(unsigned int, fmt->format.width,
> - CLU_MIN_SIZE, CLU_MAX_SIZE);
> - format->height = clamp_t(unsigned int, fmt->format.height,
> - CLU_MIN_SIZE, CLU_MAX_SIZE);
> - format->field = V4L2_FIELD_NONE;
> - format->colorspace = V4L2_COLORSPACE_SRGB;
> -
> - fmt->format = *format;
> -
> - /* Propagate the format to the source pad. */
> - format = vsp1_entity_get_pad_format(&clu->entity, config,
> - CLU_PAD_SOURCE);
> - *format = fmt->format;
> -
> -done:
> - mutex_unlock(&clu->entity.lock);
> - return ret;
> + return vsp1_subdev_set_pad_format(subdev, cfg, fmt, clu_codes,
> + ARRAY_SIZE(clu_codes),
> + CLU_MIN_SIZE, CLU_MIN_SIZE,
> + CLU_MAX_SIZE, CLU_MAX_SIZE);
> }
>
> /* -----------------------------------------------------------------------------
> diff --git a/drivers/media/platform/vsp1/vsp1_entity.c b/drivers/media/platform/vsp1/vsp1_entity.c
> index 72354caf5746..239df047efd0 100644
> --- a/drivers/media/platform/vsp1/vsp1_entity.c
> +++ b/drivers/media/platform/vsp1/vsp1_entity.c
> @@ -307,6 +307,81 @@ int vsp1_subdev_enum_frame_size(struct v4l2_subdev *subdev,
> return ret;
> }
>
> +/*
> + * vsp1_subdev_set_pad_format - Subdev pad set_fmt handler
> + * @subdev: V4L2 subdevice
> + * @cfg: V4L2 subdev pad configuration
> + * @fmt: V4L2 subdev format
> + * @codes: Array of supported media bus codes
> + * @ncodes: Number of supported media bus codes
> + * @min_width: Minimum image width
> + * @min_height: Minimum image height
> + * @max_width: Maximum image width
> + * @max_height: Maximum image height
> + *
> + * This function implements the subdev set_fmt pad operation for entities that
> + * do not support scaling or cropping. It defaults to the first supplied media
> + * bus code if the requested code isn't supported, clamps the size to the
> + * supplied minimum and maximum, and propagates the sink pad format to the
> + * source pad.
> + */
> +int vsp1_subdev_set_pad_format(struct v4l2_subdev *subdev,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *fmt,
> + const unsigned int *codes, unsigned int ncodes,
> + unsigned int min_width, unsigned int min_height,
> + unsigned int max_width, unsigned int max_height)
> +{
> + struct vsp1_entity *entity = to_vsp1_entity(subdev);
> + struct v4l2_subdev_pad_config *config;
> + struct v4l2_mbus_framefmt *format;
> + unsigned int i;
> + int ret = 0;
> +
> + mutex_lock(&entity->lock);
> +
> + config = vsp1_entity_get_pad_config(entity, cfg, fmt->which);
> + if (!config) {
> + ret = -EINVAL;
> + goto done;
> + }
> +
> + format = vsp1_entity_get_pad_format(entity, config, fmt->pad);
> +
> + if (fmt->pad != 0) {
I guess we don't have any clear way to say != *_PAD_SINK here do we ..
> + /* The output format can't be modified. */
> + fmt->format = *format;
> + goto done;
> + }
> +
> + /*
> + * Default to the first media bus code if the requested format is not
> + * supported.
> + */
> + for (i = 0; i < ncodes; ++i) {
> + if (fmt->format.code == codes[i])
> + break;
> + }
> +
> + format->code = i < ncodes ? codes[i] : codes[0];
> + format->width = clamp_t(unsigned int, fmt->format.width,
> + min_width, max_width);
> + format->height = clamp_t(unsigned int, fmt->format.height,
> + min_height, max_height);
> + format->field = V4L2_FIELD_NONE;
> + format->colorspace = V4L2_COLORSPACE_SRGB;
> +
> + fmt->format = *format;
> +
> + /* Propagate the format to the source pad. */
> + format = vsp1_entity_get_pad_format(entity, config, 1);
If we can guarantee that ENTITY_PAD_SINK == 0 and ENTITY_PAD_SOURCE == 1, can we
put those into an enum ?
> + *format = fmt->format;
> +
> +done:
> + mutex_unlock(&entity->lock);
> + return ret;
> +}
> +
> /* -----------------------------------------------------------------------------
> * Media Operations
> */
> diff --git a/drivers/media/platform/vsp1/vsp1_entity.h b/drivers/media/platform/vsp1/vsp1_entity.h
> index fb20a1578f3b..0839a62cfa71 100644
> --- a/drivers/media/platform/vsp1/vsp1_entity.h
> +++ b/drivers/media/platform/vsp1/vsp1_entity.h
> @@ -160,6 +160,12 @@ struct media_pad *vsp1_entity_remote_pad(struct media_pad *pad);
> int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_format *fmt);
> +int vsp1_subdev_set_pad_format(struct v4l2_subdev *subdev,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *fmt,
> + const unsigned int *codes, unsigned int ncodes,
> + unsigned int min_width, unsigned int min_height,
> + unsigned int max_width, unsigned int max_height);
> int vsp1_subdev_enum_mbus_code(struct v4l2_subdev *subdev,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_mbus_code_enum *code,
> diff --git a/drivers/media/platform/vsp1/vsp1_lif.c b/drivers/media/platform/vsp1/vsp1_lif.c
> index b20b842f06ba..fbdd5715f829 100644
> --- a/drivers/media/platform/vsp1/vsp1_lif.c
> +++ b/drivers/media/platform/vsp1/vsp1_lif.c
> @@ -33,17 +33,17 @@ static inline void vsp1_lif_write(struct vsp1_lif *lif, struct vsp1_dl_list *dl,
> * V4L2 Subdevice Operations
> */
>
> +static const unsigned int lif_codes[] = {
> + MEDIA_BUS_FMT_ARGB8888_1X32,
> + MEDIA_BUS_FMT_AYUV8_1X32,
> +};
> +
> static int lif_enum_mbus_code(struct v4l2_subdev *subdev,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_mbus_code_enum *code)
> {
> - static const unsigned int codes[] = {
> - MEDIA_BUS_FMT_ARGB8888_1X32,
> - MEDIA_BUS_FMT_AYUV8_1X32,
> - };
> -
> - return vsp1_subdev_enum_mbus_code(subdev, cfg, code, codes,
> - ARRAY_SIZE(codes));
> + return vsp1_subdev_enum_mbus_code(subdev, cfg, code, lif_codes,
> + ARRAY_SIZE(lif_codes));
> }
>
> static int lif_enum_frame_size(struct v4l2_subdev *subdev,
> @@ -59,53 +59,10 @@ static int lif_set_format(struct v4l2_subdev *subdev,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_format *fmt)
> {
> - struct vsp1_lif *lif = to_lif(subdev);
> - struct v4l2_subdev_pad_config *config;
> - struct v4l2_mbus_framefmt *format;
> - int ret = 0;
> -
> - mutex_lock(&lif->entity.lock);
> -
> - config = vsp1_entity_get_pad_config(&lif->entity, cfg, fmt->which);
> - if (!config) {
> - ret = -EINVAL;
> - goto done;
> - }
> -
> - /* Default to YUV if the requested format is not supported. */
> - if (fmt->format.code != MEDIA_BUS_FMT_ARGB8888_1X32 &&
> - fmt->format.code != MEDIA_BUS_FMT_AYUV8_1X32)
> - fmt->format.code = MEDIA_BUS_FMT_AYUV8_1X32;
> -
> - format = vsp1_entity_get_pad_format(&lif->entity, config, fmt->pad);
> -
> - if (fmt->pad == LIF_PAD_SOURCE) {
> - /*
> - * The LIF source format is always identical to its sink
> - * format.
> - */
> - fmt->format = *format;
> - goto done;
> - }
> -
> - format->code = fmt->format.code;
> - format->width = clamp_t(unsigned int, fmt->format.width,
> - LIF_MIN_SIZE, LIF_MAX_SIZE);
> - format->height = clamp_t(unsigned int, fmt->format.height,
> - LIF_MIN_SIZE, LIF_MAX_SIZE);
> - format->field = V4L2_FIELD_NONE;
> - format->colorspace = V4L2_COLORSPACE_SRGB;
> -
> - fmt->format = *format;
> -
> - /* Propagate the format to the source pad. */
> - format = vsp1_entity_get_pad_format(&lif->entity, config,
> - LIF_PAD_SOURCE);
> - *format = fmt->format;
> -
> -done:
> - mutex_unlock(&lif->entity.lock);
> - return ret;
> + return vsp1_subdev_set_pad_format(subdev, cfg, fmt, lif_codes,
> + ARRAY_SIZE(lif_codes),
> + LIF_MIN_SIZE, LIF_MIN_SIZE,
> + LIF_MAX_SIZE, LIF_MAX_SIZE);
> }
>
> static const struct v4l2_subdev_pad_ops lif_pad_ops = {
> diff --git a/drivers/media/platform/vsp1/vsp1_lut.c b/drivers/media/platform/vsp1/vsp1_lut.c
> index 7bdabb311c6c..f2e48a02ca7d 100644
> --- a/drivers/media/platform/vsp1/vsp1_lut.c
> +++ b/drivers/media/platform/vsp1/vsp1_lut.c
> @@ -90,18 +90,18 @@ static const struct v4l2_ctrl_config lut_table_control = {
> * V4L2 Subdevice Pad Operations
> */
>
> +static const unsigned int lut_codes[] = {
> + MEDIA_BUS_FMT_ARGB8888_1X32,
> + MEDIA_BUS_FMT_AHSV8888_1X32,
> + MEDIA_BUS_FMT_AYUV8_1X32,
> +};
> +
> static int lut_enum_mbus_code(struct v4l2_subdev *subdev,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_mbus_code_enum *code)
> {
> - static const unsigned int codes[] = {
> - MEDIA_BUS_FMT_ARGB8888_1X32,
> - MEDIA_BUS_FMT_AHSV8888_1X32,
> - MEDIA_BUS_FMT_AYUV8_1X32,
> - };
> -
> - return vsp1_subdev_enum_mbus_code(subdev, cfg, code, codes,
> - ARRAY_SIZE(codes));
> + return vsp1_subdev_enum_mbus_code(subdev, cfg, code, lut_codes,
> + ARRAY_SIZE(lut_codes));
> }
>
> static int lut_enum_frame_size(struct v4l2_subdev *subdev,
> @@ -117,51 +117,10 @@ static int lut_set_format(struct v4l2_subdev *subdev,
> struct v4l2_subdev_pad_config *cfg,
> struct v4l2_subdev_format *fmt)
> {
> - struct vsp1_lut *lut = to_lut(subdev);
> - struct v4l2_subdev_pad_config *config;
> - struct v4l2_mbus_framefmt *format;
> - int ret = 0;
> -
> - mutex_lock(&lut->entity.lock);
> -
> - config = vsp1_entity_get_pad_config(&lut->entity, cfg, fmt->which);
> - if (!config) {
> - ret = -EINVAL;
> - goto done;
> - }
> -
> - /* Default to YUV if the requested format is not supported. */
> - if (fmt->format.code != MEDIA_BUS_FMT_ARGB8888_1X32 &&
> - fmt->format.code != MEDIA_BUS_FMT_AHSV8888_1X32 &&
> - fmt->format.code != MEDIA_BUS_FMT_AYUV8_1X32)
> - fmt->format.code = MEDIA_BUS_FMT_AYUV8_1X32;
> -
> - format = vsp1_entity_get_pad_format(&lut->entity, config, fmt->pad);
> -
> - if (fmt->pad == LUT_PAD_SOURCE) {
> - /* The LUT output format can't be modified. */
> - fmt->format = *format;
> - goto done;
> - }
> -
> - format->code = fmt->format.code;
> - format->width = clamp_t(unsigned int, fmt->format.width,
> - LUT_MIN_SIZE, LUT_MAX_SIZE);
> - format->height = clamp_t(unsigned int, fmt->format.height,
> - LUT_MIN_SIZE, LUT_MAX_SIZE);
> - format->field = V4L2_FIELD_NONE;
> - format->colorspace = V4L2_COLORSPACE_SRGB;
> -
> - fmt->format = *format;
> -
> - /* Propagate the format to the source pad. */
> - format = vsp1_entity_get_pad_format(&lut->entity, config,
> - LUT_PAD_SOURCE);
> - *format = fmt->format;
> -
> -done:
> - mutex_unlock(&lut->entity.lock);
> - return ret;
> + return vsp1_subdev_set_pad_format(subdev, cfg, fmt, lut_codes,
> + ARRAY_SIZE(lut_codes),
> + LUT_MIN_SIZE, LUT_MIN_SIZE,
> + LUT_MAX_SIZE, LUT_MAX_SIZE);
> }
>
> /* -----------------------------------------------------------------------------
>
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