diff options
Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_uds.c')
-rw-r--r-- | drivers/media/platform/vsp1/vsp1_uds.c | 223 |
1 files changed, 97 insertions, 126 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_uds.c b/drivers/media/platform/vsp1/vsp1_uds.c index bba67770cf95..1875e29da184 100644 --- a/drivers/media/platform/vsp1/vsp1_uds.c +++ b/drivers/media/platform/vsp1/vsp1_uds.c @@ -17,6 +17,7 @@ #include <media/v4l2-subdev.h> #include "vsp1.h" +#include "vsp1_dl.h" #include "vsp1_uds.h" #define UDS_MIN_SIZE 4U @@ -29,19 +30,21 @@ * Device Access */ -static inline void vsp1_uds_write(struct vsp1_uds *uds, u32 reg, u32 data) +static inline void vsp1_uds_write(struct vsp1_uds *uds, struct vsp1_dl_list *dl, + u32 reg, u32 data) { - vsp1_write(uds->entity.vsp1, - reg + uds->entity.index * VI6_UDS_OFFSET, data); + vsp1_dl_list_write(dl, reg + uds->entity.index * VI6_UDS_OFFSET, data); } /* ----------------------------------------------------------------------------- * Scaling Computation */ -void vsp1_uds_set_alpha(struct vsp1_uds *uds, unsigned int alpha) +void vsp1_uds_set_alpha(struct vsp1_uds *uds, struct vsp1_dl_list *dl, + unsigned int alpha) { - vsp1_uds_write(uds, VI6_UDS_ALPVAL, alpha << VI6_UDS_ALPVAL_VAL0_SHIFT); + vsp1_uds_write(uds, dl, VI6_UDS_ALPVAL, + alpha << VI6_UDS_ALPVAL_VAL0_SHIFT); } /* @@ -105,60 +108,6 @@ static unsigned int uds_compute_ratio(unsigned int input, unsigned int output) } /* ----------------------------------------------------------------------------- - * V4L2 Subdevice Core Operations - */ - -static int uds_s_stream(struct v4l2_subdev *subdev, int enable) -{ - struct vsp1_uds *uds = to_uds(subdev); - const struct v4l2_mbus_framefmt *output; - const struct v4l2_mbus_framefmt *input; - unsigned int hscale; - unsigned int vscale; - bool multitap; - - if (!enable) - return 0; - - input = &uds->entity.formats[UDS_PAD_SINK]; - output = &uds->entity.formats[UDS_PAD_SOURCE]; - - hscale = uds_compute_ratio(input->width, output->width); - vscale = uds_compute_ratio(input->height, output->height); - - dev_dbg(uds->entity.vsp1->dev, "hscale %u vscale %u\n", hscale, vscale); - - /* Multi-tap scaling can't be enabled along with alpha scaling when - * scaling down with a factor lower than or equal to 1/2 in either - * direction. - */ - if (uds->scale_alpha && (hscale >= 8192 || vscale >= 8192)) - multitap = false; - else - multitap = true; - - vsp1_uds_write(uds, VI6_UDS_CTRL, - (uds->scale_alpha ? VI6_UDS_CTRL_AON : 0) | - (multitap ? VI6_UDS_CTRL_BC : 0)); - - vsp1_uds_write(uds, VI6_UDS_PASS_BWIDTH, - (uds_passband_width(hscale) - << VI6_UDS_PASS_BWIDTH_H_SHIFT) | - (uds_passband_width(vscale) - << VI6_UDS_PASS_BWIDTH_V_SHIFT)); - - /* Set the scaling ratios and the output size. */ - vsp1_uds_write(uds, VI6_UDS_SCALE, - (hscale << VI6_UDS_SCALE_HFRAC_SHIFT) | - (vscale << VI6_UDS_SCALE_VFRAC_SHIFT)); - vsp1_uds_write(uds, VI6_UDS_CLIP_SIZE, - (output->width << VI6_UDS_CLIP_SIZE_HSIZE_SHIFT) | - (output->height << VI6_UDS_CLIP_SIZE_VSIZE_SHIFT)); - - return 0; -} - -/* ----------------------------------------------------------------------------- * V4L2 Subdevice Pad Operations */ @@ -170,28 +119,9 @@ static int uds_enum_mbus_code(struct v4l2_subdev *subdev, MEDIA_BUS_FMT_ARGB8888_1X32, MEDIA_BUS_FMT_AYUV8_1X32, }; - struct vsp1_uds *uds = to_uds(subdev); - - if (code->pad == UDS_PAD_SINK) { - if (code->index >= ARRAY_SIZE(codes)) - return -EINVAL; - - code->code = codes[code->index]; - } else { - struct v4l2_mbus_framefmt *format; - - /* The UDS 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(&uds->entity, cfg, - UDS_PAD_SINK, code->which); - code->code = format->code; - } - - return 0; + return vsp1_subdev_enum_mbus_code(subdev, cfg, code, codes, + ARRAY_SIZE(codes)); } static int uds_enum_frame_size(struct v4l2_subdev *subdev, @@ -199,10 +129,15 @@ static int uds_enum_frame_size(struct v4l2_subdev *subdev, struct v4l2_subdev_frame_size_enum *fse) { struct vsp1_uds *uds = to_uds(subdev); + struct v4l2_subdev_pad_config *config; struct v4l2_mbus_framefmt *format; - format = vsp1_entity_get_pad_format(&uds->entity, cfg, - UDS_PAD_SINK, fse->which); + config = vsp1_entity_get_pad_config(&uds->entity, cfg, fse->which); + if (!config) + return -EINVAL; + + format = vsp1_entity_get_pad_format(&uds->entity, config, + UDS_PAD_SINK); if (fse->index || fse->code != format->code) return -EINVAL; @@ -222,20 +157,9 @@ static int uds_enum_frame_size(struct v4l2_subdev *subdev, return 0; } -static int uds_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct vsp1_uds *uds = to_uds(subdev); - - fmt->format = *vsp1_entity_get_pad_format(&uds->entity, cfg, fmt->pad, - fmt->which); - - return 0; -} - -static void uds_try_format(struct vsp1_uds *uds, struct v4l2_subdev_pad_config *cfg, - unsigned int pad, struct v4l2_mbus_framefmt *fmt, - enum v4l2_subdev_format_whence which) +static void uds_try_format(struct vsp1_uds *uds, + struct v4l2_subdev_pad_config *config, + unsigned int pad, struct v4l2_mbus_framefmt *fmt) { struct v4l2_mbus_framefmt *format; unsigned int minimum; @@ -254,8 +178,8 @@ static void uds_try_format(struct vsp1_uds *uds, struct v4l2_subdev_pad_config * case UDS_PAD_SOURCE: /* The UDS scales but can't perform format conversion. */ - format = vsp1_entity_get_pad_format(&uds->entity, cfg, - UDS_PAD_SINK, which); + format = vsp1_entity_get_pad_format(&uds->entity, config, + UDS_PAD_SINK); fmt->code = format->code; uds_output_limits(format->width, &minimum, &maximum); @@ -269,25 +193,30 @@ static void uds_try_format(struct vsp1_uds *uds, struct v4l2_subdev_pad_config * fmt->colorspace = V4L2_COLORSPACE_SRGB; } -static int uds_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_config *cfg, +static int uds_set_format(struct v4l2_subdev *subdev, + struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct vsp1_uds *uds = to_uds(subdev); + struct v4l2_subdev_pad_config *config; struct v4l2_mbus_framefmt *format; - uds_try_format(uds, cfg, fmt->pad, &fmt->format, fmt->which); + config = vsp1_entity_get_pad_config(&uds->entity, cfg, fmt->which); + if (!config) + return -EINVAL; + + uds_try_format(uds, config, fmt->pad, &fmt->format); - format = vsp1_entity_get_pad_format(&uds->entity, cfg, fmt->pad, - fmt->which); + format = vsp1_entity_get_pad_format(&uds->entity, config, fmt->pad); *format = fmt->format; if (fmt->pad == UDS_PAD_SINK) { /* Propagate the format to the source pad. */ - format = vsp1_entity_get_pad_format(&uds->entity, cfg, - UDS_PAD_SOURCE, fmt->which); + format = vsp1_entity_get_pad_format(&uds->entity, config, + UDS_PAD_SOURCE); *format = fmt->format; - uds_try_format(uds, cfg, UDS_PAD_SOURCE, format, fmt->which); + uds_try_format(uds, config, UDS_PAD_SOURCE, format); } return 0; @@ -297,55 +226,97 @@ static int uds_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_pad_con * V4L2 Subdevice Operations */ -static struct v4l2_subdev_video_ops uds_video_ops = { - .s_stream = uds_s_stream, -}; - static struct v4l2_subdev_pad_ops uds_pad_ops = { + .init_cfg = vsp1_entity_init_cfg, .enum_mbus_code = uds_enum_mbus_code, .enum_frame_size = uds_enum_frame_size, - .get_fmt = uds_get_format, + .get_fmt = vsp1_subdev_get_pad_format, .set_fmt = uds_set_format, }; static struct v4l2_subdev_ops uds_ops = { - .video = &uds_video_ops, .pad = &uds_pad_ops, }; /* ----------------------------------------------------------------------------- + * VSP1 Entity Operations + */ + +static void uds_configure(struct vsp1_entity *entity, + struct vsp1_pipeline *pipe, + struct vsp1_dl_list *dl) +{ + struct vsp1_uds *uds = to_uds(&entity->subdev); + const struct v4l2_mbus_framefmt *output; + const struct v4l2_mbus_framefmt *input; + unsigned int hscale; + unsigned int vscale; + bool multitap; + + input = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config, + UDS_PAD_SINK); + output = vsp1_entity_get_pad_format(&uds->entity, uds->entity.config, + UDS_PAD_SOURCE); + + hscale = uds_compute_ratio(input->width, output->width); + vscale = uds_compute_ratio(input->height, output->height); + + dev_dbg(uds->entity.vsp1->dev, "hscale %u vscale %u\n", hscale, vscale); + + /* Multi-tap scaling can't be enabled along with alpha scaling when + * scaling down with a factor lower than or equal to 1/2 in either + * direction. + */ + if (uds->scale_alpha && (hscale >= 8192 || vscale >= 8192)) + multitap = false; + else + multitap = true; + + vsp1_uds_write(uds, dl, VI6_UDS_CTRL, + (uds->scale_alpha ? VI6_UDS_CTRL_AON : 0) | + (multitap ? VI6_UDS_CTRL_BC : 0)); + + vsp1_uds_write(uds, dl, VI6_UDS_PASS_BWIDTH, + (uds_passband_width(hscale) + << VI6_UDS_PASS_BWIDTH_H_SHIFT) | + (uds_passband_width(vscale) + << VI6_UDS_PASS_BWIDTH_V_SHIFT)); + + /* Set the scaling ratios and the output size. */ + vsp1_uds_write(uds, dl, VI6_UDS_SCALE, + (hscale << VI6_UDS_SCALE_HFRAC_SHIFT) | + (vscale << VI6_UDS_SCALE_VFRAC_SHIFT)); + vsp1_uds_write(uds, dl, VI6_UDS_CLIP_SIZE, + (output->width << VI6_UDS_CLIP_SIZE_HSIZE_SHIFT) | + (output->height << VI6_UDS_CLIP_SIZE_VSIZE_SHIFT)); +} + +static const struct vsp1_entity_operations uds_entity_ops = { + .configure = uds_configure, +}; + +/* ----------------------------------------------------------------------------- * Initialization and Cleanup */ struct vsp1_uds *vsp1_uds_create(struct vsp1_device *vsp1, unsigned int index) { - struct v4l2_subdev *subdev; struct vsp1_uds *uds; + char name[6]; int ret; uds = devm_kzalloc(vsp1->dev, sizeof(*uds), GFP_KERNEL); if (uds == NULL) return ERR_PTR(-ENOMEM); + uds->entity.ops = &uds_entity_ops; uds->entity.type = VSP1_ENTITY_UDS; uds->entity.index = index; - ret = vsp1_entity_init(vsp1, &uds->entity, 2); + sprintf(name, "uds.%u", index); + ret = vsp1_entity_init(vsp1, &uds->entity, name, 2, &uds_ops); if (ret < 0) return ERR_PTR(ret); - /* Initialize the V4L2 subdev. */ - subdev = &uds->entity.subdev; - v4l2_subdev_init(subdev, &uds_ops); - - subdev->entity.ops = &vsp1->media_ops; - subdev->internal_ops = &vsp1_subdev_internal_ops; - snprintf(subdev->name, sizeof(subdev->name), "%s uds.%u", - dev_name(vsp1->dev), index); - v4l2_set_subdevdata(subdev, uds); - subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - - vsp1_entity_init_formats(subdev, NULL); - return uds; } |