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;
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)
{
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);
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;
}
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,
.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)
{
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)
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,
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);
}
{
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;
}
.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;
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)
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;
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) {
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:
not registered */
video_unregister_device(vfd);
}
+ fimc_destroy_capture_subdev(fimc);
kfree(fimc->vid_cap.ctx);
fimc->vid_cap.ctx = NULL;
}
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff