diff options
Diffstat (limited to 'drivers/media/video/s5p-fimc/fimc-capture.c')
| -rw-r--r-- | drivers/media/video/s5p-fimc/fimc-capture.c | 734 |
1 files changed, 657 insertions, 77 deletions
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index f0fed6124dc..62fd8a17fd5 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -63,6 +63,7 @@ static int fimc_init_capture(struct fimc_dev *fimc) fimc_hw_set_effect(ctx); fimc_hw_set_output_path(ctx); fimc_hw_set_out_dma(ctx); + clear_bit(ST_CAPT_APPLY_CFG, &fimc->state); } spin_unlock_irqrestore(&fimc->slock, flags); return ret; @@ -120,6 +121,36 @@ static int fimc_stop_capture(struct fimc_dev *fimc) return fimc_capture_state_cleanup(fimc); } +/** + * fimc_capture_config_update - apply the camera interface configuration + * + * To be called from within the interrupt handler with fimc.slock + * spinlock held. It updates the camera pixel crop, rotation and + * image flip in H/W. + */ +int fimc_capture_config_update(struct fimc_ctx *ctx) +{ + struct fimc_dev *fimc = ctx->fimc_dev; + int ret; + + if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state)) + return 0; + + spin_lock(&ctx->slock); + fimc_hw_set_camera_offset(fimc, &ctx->s_frame); + ret = fimc_set_scaler_info(ctx); + if (ret == 0) { + fimc_hw_set_prescaler(ctx); + fimc_hw_set_mainscaler(ctx); + fimc_hw_set_target_format(ctx); + fimc_hw_set_rotation(ctx); + fimc_prepare_dma_offset(ctx, &ctx->d_frame); + fimc_hw_set_out_dma(ctx); + set_bit(ST_CAPT_APPLY_CFG, &fimc->state); + } + spin_unlock(&ctx->slock); + return ret; +} static int start_streaming(struct vb2_queue *q, unsigned int count) { @@ -319,6 +350,8 @@ int fimc_capture_ctrls_create(struct fimc_dev *fimc) fimc->pipeline.sensor->ctrl_handler); } +static int fimc_capture_set_default_format(struct fimc_dev *fimc); + static int fimc_capture_open(struct file *file) { struct fimc_dev *fimc = video_drvdata(file); @@ -347,6 +380,9 @@ static int fimc_capture_open(struct file *file) return ret; } ret = fimc_capture_ctrls_create(fimc); + + if (!ret && !fimc->vid_cap.user_subdev_api) + ret = fimc_capture_set_default_format(fimc); } return ret; } @@ -384,7 +420,6 @@ static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma) return vb2_mmap(&fimc->vid_cap.vbq, vma); } -/* video device file operations */ static const struct v4l2_file_operations fimc_capture_fops = { .owner = THIS_MODULE, .open = fimc_capture_open, @@ -394,6 +429,147 @@ static const struct v4l2_file_operations fimc_capture_fops = { .mmap = fimc_capture_mmap, }; +/* + * Format and crop negotiation helpers + */ + +static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx, + u32 *width, u32 *height, + u32 *code, u32 *fourcc, int pad) +{ + bool rotation = ctx->rotation == 90 || ctx->rotation == 270; + struct fimc_dev *fimc = ctx->fimc_dev; + struct samsung_fimc_variant *var = fimc->variant; + struct fimc_pix_limit *pl = var->pix_limit; + struct fimc_frame *dst = &ctx->d_frame; + u32 depth, min_w, max_w, min_h, align_h = 3; + u32 mask = FMT_FLAGS_CAM; + struct fimc_fmt *ffmt; + + /* Color conversion from/to JPEG is not supported */ + if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE && + fimc_fmt_is_jpeg(ctx->s_frame.fmt->color)) + *code = V4L2_MBUS_FMT_JPEG_1X8; + + if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad != FIMC_SD_PAD_SINK) + mask |= FMT_FLAGS_M2M; + + ffmt = fimc_find_format(fourcc, code, mask, 0); + if (WARN_ON(!ffmt)) + return NULL; + if (code) + *code = ffmt->mbus_code; + if (fourcc) + *fourcc = ffmt->fourcc; + + if (pad == FIMC_SD_PAD_SINK) { + max_w = fimc_fmt_is_jpeg(ffmt->color) ? + pl->scaler_dis_w : pl->scaler_en_w; + /* Apply the camera input interface pixel constraints */ + v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4, + height, max_t(u32, *height, 32), + FIMC_CAMIF_MAX_HEIGHT, + fimc_fmt_is_jpeg(ffmt->color) ? 3 : 1, + 0); + return ffmt; + } + /* Can't scale or crop in transparent (JPEG) transfer mode */ + if (fimc_fmt_is_jpeg(ffmt->color)) { + *width = ctx->s_frame.f_width; + *height = ctx->s_frame.f_height; + return ffmt; + } + /* Apply the scaler and the output DMA constraints */ + max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w; + min_w = ctx->state & FIMC_DST_CROP ? dst->width : var->min_out_pixsize; + min_h = ctx->state & FIMC_DST_CROP ? dst->height : var->min_out_pixsize; + if (fimc->id == 1 && var->pix_hoff) + align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1; + + depth = fimc_get_format_depth(ffmt); + v4l_bound_align_image(width, min_w, max_w, + ffs(var->min_out_pixsize) - 1, + height, min_h, FIMC_CAMIF_MAX_HEIGHT, + align_h, + 64/(ALIGN(depth, 8))); + + dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d", + pad, code ? *code : 0, *width, *height, + dst->f_width, dst->f_height); + + return ffmt; +} + +static void fimc_capture_try_crop(struct fimc_ctx *ctx, struct v4l2_rect *r, + int pad) +{ + bool rotate = ctx->rotation == 90 || ctx->rotation == 270; + struct fimc_dev *fimc = ctx->fimc_dev; + struct samsung_fimc_variant *var = fimc->variant; + struct fimc_pix_limit *pl = var->pix_limit; + struct fimc_frame *sink = &ctx->s_frame; + u32 max_w, max_h, min_w = 0, min_h = 0, min_sz; + u32 align_sz = 0, align_h = 4; + u32 max_sc_h, max_sc_v; + + /* In JPEG transparent transfer mode cropping is not supported */ + if (fimc_fmt_is_jpeg(ctx->d_frame.fmt->color)) { + r->width = sink->f_width; + r->height = sink->f_height; + r->left = r->top = 0; + return; + } + if (pad == FIMC_SD_PAD_SOURCE) { + if (ctx->rotation != 90 && ctx->rotation != 270) + align_h = 1; + max_sc_h = min(SCALER_MAX_HRATIO, 1 << (ffs(sink->width) - 3)); + max_sc_v = min(SCALER_MAX_VRATIO, 1 << (ffs(sink->height) - 1)); + min_sz = var->min_out_pixsize; + } else { + u32 depth = fimc_get_format_depth(sink->fmt); + align_sz = 64/ALIGN(depth, 8); + min_sz = var->min_inp_pixsize; + min_w = min_h = min_sz; + max_sc_h = max_sc_v = 1; + } + /* + * For the crop rectangle at source pad the following constraints + * must be met: + * - it must fit in the sink pad format rectangle (f_width/f_height); + * - maximum downscaling ratio is 64; + * - maximum crop size depends if the rotator is used or not; + * - the sink pad format width/height must be 4 multiple of the + * prescaler ratios determined by sink pad size and source pad crop, + * the prescaler ratio is returned by fimc_get_scaler_factor(). + */ + max_w = min_t(u32, + rotate ? pl->out_rot_en_w : pl->out_rot_dis_w, + rotate ? sink->f_height : sink->f_width); + max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height); + if (pad == FIMC_SD_PAD_SOURCE) { + min_w = min_t(u32, max_w, sink->f_width / max_sc_h); + min_h = min_t(u32, max_h, sink->f_height / max_sc_v); + if (rotate) { + swap(max_sc_h, max_sc_v); + swap(min_w, min_h); + } + } + v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1, + &r->height, min_h, max_h, align_h, + align_sz); + /* Adjust left/top if cropping rectangle is out of bounds */ + r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width); + r->top = clamp_t(u32, r->top, 0, sink->f_height - r->height); + r->left = round_down(r->left, var->hor_offs_align); + + dbg("pad%d: (%d,%d)/%dx%d, sink fmt: %dx%d", + pad, r->left, r->top, r->width, r->height, + sink->f_width, sink->f_height); +} + +/* + * The video node ioctl operations + */ static int fimc_vidioc_querycap_capture(struct file *file, void *priv, struct v4l2_capability *cap) { @@ -424,11 +600,81 @@ static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv, return 0; } +/** + * fimc_pipeline_try_format - negotiate and/or set formats at pipeline + * elements + * @ctx: FIMC capture context + * @tfmt: media bus format to try/set on subdevs + * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output) + * @set: true to set format on subdevs, false to try only + */ +static int fimc_pipeline_try_format(struct fimc_ctx *ctx, + struct v4l2_mbus_framefmt *tfmt, + struct fimc_fmt **fmt_id, + bool set) +{ + struct fimc_dev *fimc = ctx->fimc_dev; + struct v4l2_subdev *sd = fimc->pipeline.sensor; + struct v4l2_subdev *csis = fimc->pipeline.csis; + struct v4l2_subdev_format sfmt; + struct v4l2_mbus_framefmt *mf = &sfmt.format; + struct fimc_fmt *ffmt = NULL; + int ret, i = 0; + + if (WARN_ON(!sd || !tfmt)) + return -EINVAL; + memset(&sfmt, 0, sizeof(sfmt)); + sfmt.format = *tfmt; + + sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY; + while (1) { + ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL, + FMT_FLAGS_CAM, i++); + if (ffmt == NULL) { + /* + * Notify user-space if common pixel code for + * host and sensor does not exist. + */ + return -EINVAL; + } + mf->code = tfmt->code = ffmt->mbus_code; + ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt); + if (ret) + return ret; + if (mf->code != tfmt->code) { + mf->code = 0; + continue; + } + if (mf->width != tfmt->width || mf->width != tfmt->width) { + u32 fcc = ffmt->fourcc; + tfmt->width = mf->width; + tfmt->height = mf->height; + ffmt = fimc_capture_try_format(ctx, + &tfmt->width, &tfmt->height, + NULL, &fcc, FIMC_SD_PAD_SOURCE); + if (ffmt && ffmt->mbus_code) + mf->code = ffmt->mbus_code; + if (mf->width != tfmt->width || mf->width != tfmt->width) + continue; + tfmt->code = mf->code; + } + if (csis) + ret = v4l2_subdev_call(csis, pad, set_fmt, NULL, &sfmt); + if (mf->code == tfmt->code && + mf->width == tfmt->width && mf->width == tfmt->width) + break; + } + if (fmt_id && ffmt) + *fmt_id = ffmt; + *tfmt = *mf; + dbg("code: 0x%x, %dx%d, %p", mf->code, mf->width, mf->height, ffmt); + return 0; +} static int fimc_cap_g_fmt_mplane(struct file *file, void *fh, struct v4l2_format *f) @@ -445,55 +691,114 @@ static int fimc_cap_g_fmt_mplane(struct file *file, void *fh, static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, struct v4l2_format *f) { + struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; struct fimc_dev *fimc = video_drvdata(file); struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_mbus_framefmt mf; + struct fimc_fmt *ffmt = NULL; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + return -EINVAL; + + if (pix->pixelformat == V4L2_PIX_FMT_JPEG) { + fimc_capture_try_format(ctx, &pix->width, &pix->height, + NULL, &pix->pixelformat, + FIMC_SD_PAD_SINK); + ctx->s_frame.f_width = pix->width; + ctx->s_frame.f_height = pix->height; + } + ffmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, + NULL, &pix->pixelformat, + FIMC_SD_PAD_SOURCE); + if (!ffmt) + return -EINVAL; + + if (!fimc->vid_cap.user_subdev_api) { + mf.width = pix->width; + mf.height = pix->height; + mf.code = ffmt->mbus_code; + fimc_md_graph_lock(fimc); + fimc_pipeline_try_format(ctx, &mf, &ffmt, false); + fimc_md_graph_unlock(fimc); + + pix->width = mf.width; + pix->height = mf.height; + if (ffmt) + pix->pixelformat = ffmt->fourcc; + } + fimc_adjust_mplane_format(ffmt, pix->width, pix->height, pix); return 0; } -static int fimc_cap_s_fmt_mplane(struct file *file, void *priv, - struct v4l2_format *f) +static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f) { - struct fimc_dev *fimc = video_drvdata(file); struct fimc_ctx *ctx = fimc->vid_cap.ctx; - struct v4l2_pix_format_mplane *pix; - struct fimc_frame *frame; - int ret; - int i; + struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; + struct v4l2_mbus_framefmt *mf = &fimc->vid_cap.mf; + struct fimc_frame *ff = &ctx->d_frame; + struct fimc_fmt *s_fmt = NULL; + int ret, i; if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) return -EINVAL; - - if (vb2_is_busy(&fimc->vid_cap.vbq) || fimc_capture_active(fimc)) + if (vb2_is_busy(&fimc->vid_cap.vbq)) return -EBUSY; - frame = &ctx->d_frame; - - pix = &f->fmt.pix_mp; - frame->fmt = fimc_find_format(&pix->pixelformat, NULL, - FMT_FLAGS_M2M | FMT_FLAGS_CAM, 0); - if (WARN(frame->fmt == NULL, "Pixel format lookup failed\n")) + /* Pre-configure format at camera interface input, for JPEG only */ + if (pix->pixelformat == V4L2_PIX_FMT_JPEG) { + fimc_capture_try_format(ctx, &pix->width, &pix->height, + NULL, &pix->pixelformat, + FIMC_SD_PAD_SINK); + ctx->s_frame.f_width = pix->width; + ctx->s_frame.f_height = pix->height; + } + /* Try the format at the scaler and the DMA output */ + ff->fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, + NULL, &pix->pixelformat, + FIMC_SD_PAD_SOURCE); + if (!ff->fmt) return -EINVAL; - - for (i = 0; i < frame->fmt->colplanes; i++) { - frame->payload[i] = - (pix->width * pix->height * frame->fmt->depth[i]) >> 3; + /* Try to match format at the host and the sensor */ + if (!fimc->vid_cap.user_subdev_api) { + mf->code = ff->fmt->mbus_code; + mf->width = pix->width; + mf->height = pix->height; + + fimc_md_graph_lock(fimc); + ret = fimc_pipeline_try_format(ctx, mf, &s_fmt, true); + fimc_md_graph_unlock(fimc); + if (ret) + return ret; + pix->width = mf->width; + pix->height = mf->height; + } + fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix); + for (i = 0; i < ff->fmt->colplanes; i++) + ff->payload[i] = + (pix->width * pix->height * ff->fmt->depth[i]) / 8; + + set_frame_bounds(ff, pix->width, pix->height); + /* Reset the composition rectangle if not yet configured */ + if (!(ctx->state & FIMC_DST_CROP)) + set_frame_crop(ff, 0, 0, pix->width, pix->height); + + /* Reset cropping and set format at the camera interface input */ + if (!fimc->vid_cap.user_subdev_api) { + ctx->s_frame.fmt = s_fmt; + set_frame_bounds(&ctx->s_frame, pix->width, pix->height); + set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height); } - /* Output DMA frame pixel size and offsets. */ - frame->f_width = pix->plane_fmt[0].bytesperline * 8 - / frame->fmt->depth[0]; - frame->f_height = pix->height; - frame->width = pix->width; - frame->height = pix->height; - frame->o_width = pix->width; - frame->o_height = pix->height; - frame->offs_h = 0; - frame->offs_v = 0; + return ret; +} - ctx->state |= (FIMC_PARAMS | FIMC_DST_FMT); +static int fimc_cap_s_fmt_mplane(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct fimc_dev *fimc = video_drvdata(file); - return ret; + return fimc_capture_set_format(fimc, f); } static int fimc_cap_enum_input(struct file *file, void *priv, @@ -522,22 +827,83 @@ static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i) return 0; } +/** + * fimc_pipeline_validate - check for formats inconsistencies + * between source and sink pad of each link + * + * Return 0 if all formats match or -EPIPE otherwise. + */ +static int fimc_pipeline_validate(struct fimc_dev *fimc) +{ + struct v4l2_subdev_format sink_fmt, src_fmt; + struct fimc_vid_cap *vid_cap = &fimc->vid_cap; + struct v4l2_subdev *sd; + struct media_pad *pad; + int ret; + + /* Start with the video capture node pad */ + pad = media_entity_remote_source(&vid_cap->vd_pad); + if (pad == NULL) + return -EPIPE; + /* FIMC.{N} subdevice */ + sd = media_entity_to_v4l2_subdev(pad->entity); + + while (1) { + /* Retrieve format at the sink pad */ + pad = &sd->entity.pads[0]; + if (!(pad->flags & MEDIA_PAD_FL_SINK)) + break; + /* Don't call FIMC subdev operation to avoid nested locking */ + if (sd == fimc->vid_cap.subdev) { + struct fimc_frame *ff = &vid_cap->ctx->s_frame; + sink_fmt.format.width = ff->f_width; + sink_fmt.format.height = ff->f_height; + sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0; + } else { + sink_fmt.pad = pad->index; + sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; + ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt); + if (ret < 0 && ret != -ENOIOCTLCMD) + return -EPIPE; + } + /* Retrieve format at the source pad */ + pad = media_entity_remote_source(pad); + if (pad == NULL || + media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) + break; + + sd = media_entity_to_v4l2_subdev(pad->entity); + src_fmt.pad = pad->index; + src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; + ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt); + if (ret < 0 && ret != -ENOIOCTLCMD) + return -EPIPE; + + if (src_fmt.format.width != sink_fmt.format.width || + src_fmt.format.height != sink_fmt.format.height || + src_fmt.format.code != sink_fmt.format.code) + return -EPIPE; + } + return 0; +} + static int fimc_cap_streamon(struct file *file, void *priv, enum v4l2_buf_type type) { struct fimc_dev *fimc = video_drvdata(file); - struct fimc_ctx *ctx = fimc->vid_cap.ctx; struct fimc_pipeline *p = &fimc->pipeline; + int ret; if (fimc_capture_active(fimc)) return -EBUSY; - if (!(ctx->state & FIMC_DST_FMT)) { - v4l2_err(fimc->vid_cap.vfd, "Format is not set\n"); - return -EINVAL; - } media_entity_pipeline_start(&p->sensor->entity, p->pipe); + if (fimc->vid_cap.user_subdev_api) { + ret = fimc_pipeline_validate(fimc); + if (ret) + return ret; + } return vb2_streamon(&fimc->vid_cap.vbq, type); } @@ -624,35 +990,16 @@ static int fimc_cap_s_crop(struct file *file, void *fh, struct v4l2_crop *cr) { struct fimc_dev *fimc = video_drvdata(file); struct fimc_ctx *ctx = fimc->vid_cap.ctx; - struct fimc_frame *f; - int ret = -EINVAL; - - if (fimc_capture_active(fimc)) - return -EBUSY; - - ret = fimc_try_crop(ctx, cr); - if (ret) - return ret; - - if (!(ctx->state & FIMC_DST_FMT)) { - v4l2_err(fimc->vid_cap.vfd, "Capture format is not set\n"); - return -EINVAL; - } + struct fimc_frame *ff; + unsigned long flags; - f = &ctx->s_frame; - /* Check for the pixel scaling ratio when cropping input image. */ - ret = fimc_check_scaler_ratio(cr->c.width, cr->c.height, - ctx->d_frame.width, ctx->d_frame.height, - ctx->rotation); - if (ret) { - v4l2_err(fimc->vid_cap.vfd, "Out of the scaler range\n"); - return ret; - } + fimc_capture_try_crop(ctx, &cr->c, FIMC_SD_PAD_SINK); + ff = &ctx->s_frame; - f->offs_h = cr->c.left; - f->offs_v = cr->c.top; - f->width = cr->c.width; - f->height = cr->c.height; + spin_lock_irqsave(&fimc->slock, flags); + set_frame_crop(ff, cr->c.left, cr->c.top, cr->c.width, cr->c.height); + set_bit(ST_CAPT_APPLY_CFG, &fimc->state); + spin_unlock_irqrestore(&fimc->slock, flags); return 0; } @@ -683,14 +1030,16 @@ static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = { .vidioc_g_input = fimc_cap_g_input, }; -/* Media operations */ +/* Capture subdev media entity operations */ static int fimc_link_setup(struct media_entity *entity, const struct media_pad *local, const struct media_pad *remote, u32 flags) { - struct video_device *vd = media_entity_to_video_device(entity); - struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(remote->entity); - struct fimc_dev *fimc = video_get_drvdata(vd); + struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + + if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV) + return -EINVAL; if (WARN_ON(fimc == NULL)) return 0; @@ -710,10 +1059,241 @@ static int fimc_link_setup(struct media_entity *entity, return 0; } -static const struct media_entity_operations fimc_media_ops = { +static const struct media_entity_operations fimc_sd_media_ops = { .link_setup = fimc_link_setup, }; +static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct fimc_fmt *fmt; + + fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index); + if (!fmt) + return -EINVAL; + code->code = fmt->mbus_code; + return 0; +} + +static int fimc_subdev_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_mbus_framefmt *mf; + struct fimc_frame *ff; + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + mf = v4l2_subdev_get_try_format(fh, fmt->pad); + fmt->format = *mf; + return 0; + } + mf = &fmt->format; + mf->colorspace = V4L2_COLORSPACE_JPEG; + ff = fmt->pad == FIMC_SD_PAD_SINK ? &ctx->s_frame : &ctx->d_frame; + + mutex_lock(&fimc->lock); + /* The pixel code is same on both input and output pad */ + if (!WARN_ON(ctx->s_frame.fmt == NULL)) + mf->code = ctx->s_frame.fmt->mbus_code; + mf->width = ff->f_width; + mf->height = ff->f_height; + mutex_unlock(&fimc->lock); + + return 0; +} + +static int fimc_subdev_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *mf = &fmt->format; + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct fimc_frame *ff; + struct fimc_fmt *ffmt; + + dbg("pad%d: code: 0x%x, %dx%d", + fmt->pad, mf->code, mf->width, mf->height); + + if (fmt->pad == FIMC_SD_PAD_SOURCE && + vb2_is_busy(&fimc->vid_cap.vbq)) + return -EBUSY; + + mutex_lock(&fimc->lock); + ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height, + &mf->code, NULL, fmt->pad); + mutex_unlock(&fimc->lock); + mf->colorspace = V4L2_COLORSPACE_JPEG; + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + mf = v4l2_subdev_get_try_format(fh, fmt->pad); + *mf = fmt->format; + return 0; + } + ff = fmt->pad == FIMC_SD_PAD_SINK ? + &ctx->s_frame : &ctx->d_frame; + + mutex_lock(&fimc->lock); + set_frame_bounds(ff, mf->width, mf->height); + ff->fmt = ffmt; + + /* Reset the crop rectangle if required. */ + if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_DST_CROP))) + set_frame_crop(ff, 0, 0, mf->width, mf->height); + + if (fmt->pad == FIMC_SD_PAD_SINK) + ctx->state &= ~FIMC_DST_CROP; + mutex_unlock(&fimc->lock); + return 0; +} + +static int fimc_subdev_get_crop(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_crop *crop) +{ + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_rect *r = &crop->rect; + struct fimc_frame *ff; + + if (crop->which == V4L2_SUBDEV_FORMAT_TRY) { + crop->rect = *v4l2_subdev_get_try_crop(fh, crop->pad); + return 0; + } + ff = crop->pad == FIMC_SD_PAD_SINK ? + &ctx->s_frame : &ctx->d_frame; + + mutex_lock(&fimc->lock); + r->left = ff->offs_h; + r->top = ff->offs_v; + r->width = ff->width; + r->height = ff->height; + mutex_unlock(&fimc->lock); + + dbg("ff:%p, pad%d: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d", + ff, crop->pad, r->left, r->top, r->width, r->height, + ff->f_width, ff->f_height); + + return 0; +} + +static int fimc_subdev_set_crop(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_crop *crop) +{ + struct fimc_dev *fimc = v4l2_get_subdevdata(sd); + struct fimc_ctx *ctx = fimc->vid_cap.ctx; + struct v4l2_rect *r = &crop->rect; + struct fimc_frame *ff; + unsigned long flags; + + dbg("(%d,%d)/%dx%d", r->left, r->top, r->width, r->height); + + ff = crop->pad == FIMC_SD_PAD_SOURCE ? + &ctx->d_frame : &ctx->s_frame; + + mutex_lock(&fimc->lock); + fimc_capture_try_crop(ctx, r, crop->pad); + + if (crop->which == V4L2_SUBDEV_FORMAT_TRY) { + mutex_lock(&fimc->lock); + *v4l2_subdev_get_try_crop(fh, crop->pad) = *r; + return 0; + } + spin_lock_irqsave(&fimc->slock, flags); + set_frame_crop(ff, r->left, r->top, r->width, r->height); + if (crop->pad == FIMC_SD_PAD_SOURCE) + ctx->state |= FIMC_DST_CROP; + + set_bit(ST_CAPT_APPLY_CFG, &fimc->state); + spin_unlock_irqrestore(&fimc->slock, flags); + + dbg("pad%d: (%d,%d)/%dx%d", crop->pad, r->left, r->top, + r->width, r->height); + + mutex_unlock(&fimc->lock); + return 0; +} + +static struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = { + .enum_mbus_code = fimc_subdev_enum_mbus_code, + .get_fmt = fimc_subdev_get_fmt, + .set_fmt = fimc_subdev_set_fmt, + .get_crop = fimc_subdev_get_crop, + .set_crop = fimc_subdev_set_crop, +}; + +static struct v4l2_subdev_ops fimc_subdev_ops = { + .pad = &fimc_subdev_pad_ops, +}; + +static int fimc_create_capture_subdev(struct fimc_dev *fimc, + struct v4l2_device *v4l2_dev) +{ + struct v4l2_subdev *sd; + int ret; + + sd = kzalloc(sizeof(*sd), GFP_KERNEL); + if (!sd) + return -ENOMEM; + + v4l2_subdev_init(sd, &fimc_subdev_ops); + sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE; + snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->pdev->id); + + fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; + ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM, + fimc->vid_cap.sd_pads, 0); + if (ret) + goto me_err; + ret = v4l2_device_register_subdev(v4l2_dev, sd); + if (ret) + goto sd_err; + + fimc->vid_cap.subdev = sd; + v4l2_set_subdevdata(sd, fimc); + sd->entity.ops = &fimc_sd_media_ops; + return 0; +sd_err: + media_entity_cleanup(&sd->entity); +me_err: + kfree(sd); + return ret; +} + +static void fimc_destroy_capture_subdev(struct fimc_dev *fimc) +{ + struct v4l2_subdev *sd = fimc->vid_cap.subdev; + + if (!sd) + return; + media_entity_cleanup(&sd->entity); + v4l2_device_unregister_subdev(sd); + kfree(sd); + sd = NULL; +} + +/* Set default format at the sensor and host interface */ +static int fimc_capture_set_default_format(struct fimc_dev *fimc) +{ + struct v4l2_format fmt = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, + .fmt.pix_mp = { + .width = 640, + .height = 480, + .pixelformat = V4L2_PIX_FMT_YUYV, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_JPEG, + }, + }; + + return fimc_capture_set_format(fimc, &fmt); +} + /* fimc->lock must be already initialized */ int fimc_register_capture_device(struct fimc_dev *fimc, struct v4l2_device *v4l2_dev) @@ -721,7 +1301,6 @@ int fimc_register_capture_device(struct fimc_dev *fimc, struct video_device *vfd; struct fimc_vid_cap *vid_cap; struct fimc_ctx *ctx; - struct fimc_frame *fr; struct vb2_queue *q; int ret = -ENOMEM; @@ -733,12 +1312,8 @@ int fimc_register_capture_device(struct fimc_dev *fimc, ctx->in_path = FIMC_CAMERA; ctx->out_path = FIMC_DMA; ctx->state = FIMC_CTX_CAP; - - /* Default format of the output frames */ - fr = &ctx->d_frame; - fr->fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); - fr->width = fr->f_width = fr->o_width = 640; - fr->height = fr->f_height = fr->o_height = 480; + ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); + ctx->d_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); vfd = video_device_alloc(); if (!vfd) { @@ -783,11 +1358,15 @@ int fimc_register_capture_device(struct fimc_dev *fimc, ret = media_entity_init(&vfd->entity, 1, &fimc->vid_cap.vd_pad, 0); if (ret) goto err_ent; + ret = fimc_create_capture_subdev(fimc, v4l2_dev); + if (ret) + goto err_sd_reg; - vfd->entity.ops = &fimc_media_ops; vfd->ctrl_handler = &ctx->ctrl_handler; return 0; +err_sd_reg: + media_entity_cleanup(&vfd->entity); err_ent: video_device_release(vfd); err_vd_alloc: @@ -805,6 +1384,7 @@ void fimc_unregister_capture_device(struct fimc_dev *fimc) not registered */ video_unregister_device(vfd); } + fimc_destroy_capture_subdev(fimc); kfree(fimc->vid_cap.ctx); fimc->vid_cap.ctx = NULL; } |