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,
};
struct vsp1_lut *lut = to_lut(subdev);
struct v4l2_mbus_framefmt *format;
if (code->pad == LUT_PAD_SINK) {
if (code->index >= ARRAY_SIZE(codes))
return -EINVAL;
code->code = codes[code->index];
} else {
/* The LUT can't perform format conversion, the sink format is
* always identical to the source format.
*/
if (code->index)
return -EINVAL;
format = vsp1_entity_get_pad_format(&lut->entity, cfg,
LUT_PAD_SINK, code->which);
code->code = format->code;
}
return 0;
}
static int lut_enum_frame_size(struct v4l2_subdev *subdev,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
struct vsp1_lut *lut = to_lut(subdev);
struct v4l2_mbus_framefmt *format;
format = vsp1_entity_get_pad_format(&lut->entity, cfg,
fse->pad, fse->which);
if (fse->index || fse->code != format->code)
return -EINVAL;
if (fse->pad == LUT_PAD_SINK) {
fse->min_width = LUT_MIN_SIZE;
fse->max_width = LUT_MAX_SIZE;
fse->min_height = LUT_MIN_SIZE;
fse->max_height = LUT_MAX_SIZE;
} else {
/* The size on the source pad are fixed and always identical to
* the size on the sink pad.
*/
fse->min_width = format->width;
fse->max_width = format->width;
fse->min_height = format->height;
fse->max_height = format->height;
}
return 0;
}
static void lut_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl,
enum vsp1_entity_params params)
{
struct vsp1_lut *lut = to_lut(&entity->subdev);
struct vsp1_dl_body *dlb;
unsigned long flags;
switch (params) {
case VSP1_ENTITY_PARAMS_INIT:
vsp1_lut_write(lut, dl, VI6_LUT_CTRL, VI6_LUT_CTRL_EN);
break;
case VSP1_ENTITY_PARAMS_PARTITION:
break;
case VSP1_ENTITY_PARAMS_RUNTIME:
spin_lock_irqsave(&lut->lock, flags);
dlb = lut->lut;
lut->lut = NULL;
spin_unlock_irqrestore(&lut->lock, flags);
if (dlb)
vsp1_dl_list_add_fragment(dl, dlb);
break;
}
}
static int lut_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct vsp1_lut *lut = to_lut(subdev);
fmt->format = *vsp1_entity_get_pad_format(&lut->entity, cfg, fmt->pad,
fmt->which);
return 0;
}
static int lut_s_stream(struct v4l2_subdev *subdev, int enable)
{
struct vsp1_lut *lut = to_lut(subdev);
if (!enable)
return 0;
vsp1_lut_write(lut, VI6_LUT_CTRL, VI6_LUT_CTRL_EN);
return 0;
}
static long lut_ioctl(struct v4l2_subdev *subdev, unsigned int cmd, void *arg)
{
struct vsp1_lut *lut = to_lut(subdev);
switch (cmd) {
case VIDIOC_VSP1_LUT_CONFIG:
return lut_set_table(lut, arg);
default:
return -ENOIOCTLCMD;
}
}
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;
}
static void lut_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl)
{
struct vsp1_lut *lut = to_lut(&entity->subdev);
vsp1_lut_write(lut, dl, VI6_LUT_CTRL, VI6_LUT_CTRL_EN);
mutex_lock(&lut->lock);
if (lut->lut) {
vsp1_dl_list_add_fragment(dl, lut->lut);
lut->lut = NULL;
}
mutex_unlock(&lut->lock);
}
static void lut_configure(struct vsp1_entity *entity,
struct vsp1_pipeline *pipe,
struct vsp1_dl_list *dl, bool full)
{
struct vsp1_lut *lut = to_lut(&entity->subdev);
struct vsp1_dl_body *dlb;
unsigned long flags;
if (full) {
vsp1_lut_write(lut, dl, VI6_LUT_CTRL, VI6_LUT_CTRL_EN);
return;
}
spin_lock_irqsave(&lut->lock, flags);
dlb = lut->lut;
lut->lut = NULL;
spin_unlock_irqrestore(&lut->lock, flags);
if (dlb)
vsp1_dl_list_add_fragment(dl, dlb);
}
