This subdev interface exposes the internal scaler and color converter
functionality to user space. Resolution and media bus format can now
be configured explicitly by applications. Camera frame composition
onto the output buffer can be configured through set/get_crop at FIMC.{n}
source pad. Additionally crop, controls and composition may be
reconfigured while streaming.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/media/video/s5p-fimc/fimc-capture.c | 688 ++++++++++++++++++++++++---
drivers/media/video/s5p-fimc/fimc-core.c | 32 +-
drivers/media/video/s5p-fimc/fimc-core.h | 51 ++-
drivers/media/video/s5p-fimc/fimc-mdevice.c | 37 ++-
4 files changed, 709 insertions(+), 99 deletions(-)
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
index ecb0246..4d7b279 100644
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -67,6 +67,7 @@ static int fimc_start_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;
@@ -124,6 +125,33 @@ int fimc_capture_resume(struct fimc_dev *fimc)
return 0;
}
+/**
+ * fimc_capture_config_update - apply the camera interface configuration
+ *
+ * To be called from within the interrupt handler with fimc.slock
+ * spinlock held. Camera pixel crop, rotation and image flip state will
+ * be updated in the H/W.
+ */
+int fimc_capture_config_update(struct fimc_ctx *ctx)
+{
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ int ret;
+
+ 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);
+ }
+ spin_unlock(&ctx->slock);
+ return ret;
+}
+
static int start_streaming(struct vb2_queue *q)
{
struct fimc_ctx *ctx = q->drv_priv;
@@ -289,7 +317,7 @@ int fimc_capture_ctrls_create(struct fimc_dev *fimc)
if (fimc->vid_cap.ctx->ctrls_rdy)
return 0;
ret = fimc_ctrls_create(fimc->vid_cap.ctx);
- if (ret || subdev_has_devnode(fimc->pipeline.sensor))
+ if (ret || !fimc->vid_cap.vid_dev_compat)
return ret;
return v4l2_ctrl_add_handler(&fimc->vid_cap.ctx->ctrl_handler,
fimc->pipeline.sensor->ctrl_handler);
@@ -358,7 +386,6 @@ 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,
@@ -368,6 +395,143 @@ 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 = 4;
+ u32 mask = FMT_FLAGS_CAM;
+ struct fimc_fmt *ffmt;
+
+ /* Color conversion from/to JPEG is not supported */
+ if (pad == FIMC_SD_PAD_SOURCE &&
+ fimc_fmt_is_jpeg(ctx->s_frame.fmt->color))
+ *code = V4L2_MBUS_FMT_JPEG_1X8;
+ if (fourcc)
+ 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, 32, max_w, 4,
+ height, 32, FIMC_CAMIF_MAX_HEIGHT, 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)
{
@@ -398,11 +562,86 @@ 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;
+ if (!fimc->vid_cap.vid_dev_compat)
+ return 0;
+ memset(&sfmt, 0, sizeof(sfmt));
+ sfmt.format = *tfmt;
+
+ sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY;
+ while (1) {
+ if (mf->code == 0) {
+ ffmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, i++);
+ if (WARN_ON(!ffmt)) {
+ /*
+ * 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 pfcc = ffmt ? ffmt->fourcc :
+ fmt_id ? (*fmt_id)->fourcc : 0;
+ tfmt->width = mf->width;
+ tfmt->height = mf->height;
+ ffmt = fimc_capture_try_format(ctx,
+ &tfmt->width, &tfmt->height,
+ NULL, &pfcc, 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", mf->code, mf->width, mf->height);
+ return 0;
+}
static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
struct v4l2_format *f)
@@ -419,53 +658,98 @@ 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;
+
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return -EINVAL;
+ ffmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
+ NULL, &pix->pixelformat,
+ FIMC_SD_PAD_SOURCE);
+ if (!ffmt)
+ return -EIO;
+
+ 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);
+
+ if (pix->width != mf.width || pix->height != mf.height) {
+ /* Pixel resolution has been changed be sensor subdev */
+ pix->width = mf.width;
+ pix->height = mf.height;
+ ffmt = fimc_capture_try_format(ctx, &mf.width, &mf.height,
+ NULL, &pix->pixelformat,
+ FIMC_SD_PAD_SOURCE);
+ if (pix->width != mf.width || pix->height != mf.height)
+ v4l2_err(fimc->vid_cap.vfd,
+ "Not supported format returned from sensor");
+ }
+ 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)
{
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;
+ 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"))
- return -EINVAL;
-
- for (i = 0; i < frame->fmt->colplanes; i++) {
- frame->payload[i] =
- (pix->width * pix->height * frame->fmt->depth[i]) >> 3;
- }
-
- /* 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;
-
- ctx->state |= (FIMC_PARAMS | FIMC_DST_FMT);
+ /* Try the format at the scaler and DMA output */
+ ff->fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
+ NULL, &pix->pixelformat,
+ FIMC_SD_PAD_SOURCE);
+ if (!ff->fmt)
+ return -EIO;
+ /* Try the format at the camera interface input */
+ 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;
+
+ ctx->state |= FIMC_DST_FMT;
+ 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, mf->width, mf->height);
+
+ ff = &ctx->s_frame;
+ ff->fmt = s_fmt;
+ set_frame_bounds(ff, pix->width, pix->height);
+ /* Reset cropping at the host interface if required */
+ if (fimc->vid_cap.vid_dev_compat)
+ set_frame_crop(ff, 0, 0, mf->width, mf->height);
return ret;
}
@@ -496,12 +780,70 @@ static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i)
return 0;
}
+/**
+ * fimc_pipeline_validate - check for formats inconsistencies
+ * beween 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 a deadlock */
+ if (sd == fimc->vid_cap.subdev) {
+ sink_fmt.format.width = vid_cap->ctx->s_frame.f_width;
+ sink_fmt.format.height = vid_cap->ctx->s_frame.f_height;
+ } 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)
+ 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;
@@ -512,6 +854,11 @@ static int fimc_cap_streamon(struct file *file, void *priv,
}
media_entity_pipeline_start(&p->sensor->entity, p->pipe);
+ if (!fimc->vid_cap.vid_dev_compat) {
+ ret = fimc_pipeline_validate(fimc);
+ if (ret)
+ return ret;
+ }
return vb2_streamon(&fimc->vid_cap.vbq, type);
}
@@ -598,35 +945,16 @@ 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;
}
@@ -688,6 +1016,235 @@ static const struct media_entity_operations fimc_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 error;
+ ret = v4l2_device_register_subdev(v4l2_dev, sd);
+ if (!ret) {
+ fimc->vid_cap.subdev = sd;
+ v4l2_set_subdevdata(sd, fimc);
+ return 0;
+ }
+ media_entity_cleanup(&sd->entity);
+error:
+ 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 camera input, scaler and the output DMA */
+static void fimc_cap_set_default_fmt(struct fimc_ctx *ctx)
+{
+ struct fimc_fmt *fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
+ struct fimc_frame *ff = &ctx->s_frame;
+
+ ff->fmt = fmt;
+ set_frame_bounds(ff, 640, 480);
+ ff->width = 640;
+ ff->height = 480;
+
+ ff = &ctx->d_frame;
+ ff->fmt = fmt;
+ set_frame_bounds(ff, 640, 480);
+ ff->width = 640;
+ ff->height = 480;
+}
+
/* fimc->lock must be already initialized */
int fimc_register_capture_device(struct fimc_dev *fimc,
struct v4l2_device *v4l2_dev)
@@ -695,7 +1252,6 @@ 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;
@@ -708,11 +1264,7 @@ int fimc_register_capture_device(struct fimc_dev *fimc,
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;
+ fimc_cap_set_default_fmt(ctx);
vfd = video_device_alloc();
if (!vfd) {
@@ -757,6 +1309,9 @@ 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;
@@ -771,6 +1326,8 @@ int fimc_register_capture_device(struct fimc_dev *fimc,
return 0;
err_vd_reg:
+ fimc_destroy_capture_subdev(fimc);
+err_sd_reg:
media_entity_cleanup(&vfd->entity);
err_ent:
video_device_release(vfd);
@@ -787,6 +1344,7 @@ void fimc_unregister_capture_device(struct fimc_dev *fimc)
media_entity_cleanup(&vfd->entity);
video_unregister_device(vfd);
}
+ fimc_destroy_capture_subdev(fimc);
kfree(fimc->vid_cap.ctx);
fimc->vid_cap.ctx = NULL;
}
diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c
index 7a10fea..4b9f471 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.c
+++ b/drivers/media/video/s5p-fimc/fimc-core.c
@@ -371,6 +371,10 @@ void fimc_capture_irq_handler(struct fimc_dev *fimc)
} else {
set_bit(ST_CAPT_RUN, &fimc->state);
}
+ if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state)) {
+ if (fimc_capture_config_update(cap->ctx) == 0)
+ clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
+ }
dbg("frame: %d, active_buf_cnt: %d",
fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
@@ -1195,12 +1199,11 @@ static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
return 0;
}
-int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
+static int fimc_m2m_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
{
struct fimc_dev *fimc = ctx->fimc_dev;
struct fimc_frame *f;
u32 min_size, halign, depth = 0;
- bool is_capture_ctx;
int i;
if (cr->c.top < 0 || cr->c.left < 0) {
@@ -1208,13 +1211,9 @@ int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
"doesn't support negative values for top & left\n");
return -EINVAL;
}
-
- is_capture_ctx = fimc_ctx_state_is_set(FIMC_CTX_CAP, ctx);
-
if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
- f = is_capture_ctx ? &ctx->s_frame : &ctx->d_frame;
- else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
- !is_capture_ctx)
+ f = &ctx->d_frame;
+ else if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
f = &ctx->s_frame;
else
return -EINVAL;
@@ -1223,15 +1222,10 @@ int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
/* Get pixel alignment constraints. */
- if (is_capture_ctx) {
- min_size = 16;
- halign = 4;
- } else {
- if (fimc->id == 1 && fimc->variant->pix_hoff)
- halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
- else
- halign = ffs(min_size) - 1;
- }
+ if (fimc->id == 1 && fimc->variant->pix_hoff)
+ halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
+ else
+ halign = ffs(min_size) - 1;
for (i = 0; i < f->fmt->colplanes; i++)
depth += f->fmt->depth[i];
@@ -1248,7 +1242,7 @@ int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
cr->c.top = f->o_height - cr->c.height;
cr->c.left = round_down(cr->c.left, min_size);
- cr->c.top = round_down(cr->c.top, is_capture_ctx ? 16 : 8);
+ cr->c.top = round_down(cr->c.top, fimc->variant->hor_offs_align);
dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
cr->c.left, cr->c.top, cr->c.width, cr->c.height,
@@ -1264,7 +1258,7 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
struct fimc_frame *f;
int ret;
- ret = fimc_try_crop(ctx, cr);
+ ret = fimc_m2m_try_crop(ctx, cr);
if (ret)
return ret;
diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h
index 36752f7..385a18a 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.h
+++ b/drivers/media/video/s5p-fimc/fimc-core.h
@@ -93,9 +93,11 @@ enum fimc_color_fmt {
S5P_FIMC_CBYCRY422,
S5P_FIMC_CRYCBY422,
S5P_FIMC_YCBCR444_LOCAL,
+ S5P_FIMC_JPEG = 0x40,
};
-#define fimc_fmt_is_rgb(x) ((x) & 0x10)
+#define fimc_fmt_is_rgb(x) (!!((x) & 0x10))
+#define fimc_fmt_is_jpeg(x) (!!((x) & 0x40))
#define IS_M2M(__strt) ((__strt) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE || \
__strt == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
@@ -117,9 +119,11 @@ enum fimc_color_fmt {
#define FIMC_DST_ADDR (1 << 2)
#define FIMC_SRC_FMT (1 << 3)
#define FIMC_DST_FMT (1 << 4)
-#define FIMC_CTX_M2M (1 << 5)
-#define FIMC_CTX_CAP (1 << 6)
-#define FIMC_CTX_SHUT (1 << 7)
+#define FIMC_DST_CROP (1 << 5)
+#define FIMC_CTX_M2M (1 << 16)
+#define FIMC_CTX_CAP (1 << 17)
+#define FIMC_CTX_SHUT (1 << 18)
+
/* Image conversion flags */
#define FIMC_IN_DMA_ACCESS_TILED (1 << 0)
@@ -294,12 +298,18 @@ struct fimc_m2m_device {
int refcnt;
};
+#define FIMC_SD_PAD_SINK 0
+#define FIMC_SD_PAD_SOURCE 1
+#define FIMC_SD_PADS_NUM 2
+
/**
* struct fimc_vid_cap - camera capture device information
* @ctx: hardware context data
* @vfd: video device node for camera capture mode
+ * @subdev: subdev exposing the FIMC processing block
* @vd_pad: fimc video capture node pad
- * @fmt: Media Bus format configured at selected image sensor
+ * @sd_pads: fimc video processing block pads
+ * @mf: media bus format at the FIMC camera input (and the scaler output) pad
* @pending_buf_q: the pending buffer queue head
* @active_buf_q: the queue head of buffers scheduled in hardware
* @vbq: the capture am video buffer queue
@@ -316,8 +326,10 @@ struct fimc_vid_cap {
struct fimc_ctx *ctx;
struct vb2_alloc_ctx *alloc_ctx;
struct video_device *vfd;
+ struct v4l2_subdev *subdev;
struct media_pad vd_pad;
struct v4l2_mbus_framefmt mf;
+ struct media_pad sd_pads[FIMC_SD_PADS_NUM];
struct list_head pending_buf_q;
struct list_head active_buf_q;
struct vb2_queue vbq;
@@ -499,6 +511,33 @@ struct fimc_ctx {
#define fh_to_ctx(__fh) container_of(__fh, struct fimc_ctx, fh)
+static inline void set_frame_bounds(struct fimc_frame *f, u32 width, u32 height)
+{
+ f->o_width = width;
+ f->o_height = height;
+ f->f_width = width;
+ f->f_height = height;
+}
+
+static inline void set_frame_crop(struct fimc_frame *f,
+ u32 left, u32 top, u32 width, u32 height)
+{
+ f->offs_h = left;
+ f->offs_v = top;
+ f->width = width;
+ f->height = height;
+}
+
+static inline u32 fimc_get_format_depth(struct fimc_fmt *ff)
+{
+ u32 i, depth = 0;
+
+ if (ff != NULL)
+ for (i = 0; i < ff->colplanes; i++)
+ depth += ff->depth[i];
+ return depth;
+}
+
static inline bool fimc_capture_active(struct fimc_dev *fimc)
{
unsigned long flags;
@@ -650,7 +689,6 @@ int fimc_hw_set_camera_type(struct fimc_dev *fimc,
/* fimc-core.c */
int fimc_vidioc_enum_fmt_mplane(struct file *file, void *priv,
struct v4l2_fmtdesc *f);
-int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr);
int fimc_ctrls_create(struct fimc_ctx *ctx);
void fimc_ctrls_delete(struct fimc_ctx *ctx);
void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active);
@@ -685,6 +723,7 @@ int fimc_vid_cap_buf_queue(struct fimc_dev *fimc,
struct fimc_vid_buffer *fimc_vb);
int fimc_capture_suspend(struct fimc_dev *fimc);
int fimc_capture_resume(struct fimc_dev *fimc);
+int fimc_capture_config_update(struct fimc_ctx *ctx);
/* Locking: the caller holds fimc->slock */
static inline void fimc_activate_capture(struct fimc_ctx *ctx)
diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c
index 91f57d6..d425b65 100644
--- a/drivers/media/video/s5p-fimc/fimc-mdevice.c
+++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c
@@ -408,8 +408,9 @@ static int __fimc_md_create_fimc_links(struct fimc_md *fmd,
continue;
flags = (i == fimc_id) ? MEDIA_LNK_FL_ENABLED : 0;
- sink = &fmd->fimc[i]->vid_cap.vfd->entity;
- ret = media_entity_create_link(source, 0, sink, 0, flags);
+ sink = &fmd->fimc[i]->vid_cap.subdev->entity;
+ ret = media_entity_create_link(source, pad, sink,
+ FIMC_SD_PAD_SINK, flags);
if (ret)
return ret;
@@ -446,10 +447,10 @@ static int fimc_md_create_links(struct fimc_md *fmd)
struct v4l2_subdev *sensor, *csis;
struct s5p_fimc_isp_info *pdata;
struct fimc_sensor_info *s_info;
- struct media_entity *source;
- int fimc_id = 0;
- int i, pad;
+ struct media_entity *source, *sink;
+ int i, pad, fimc_id = 0;
int ret = 0;
+ u32 flags;
for (i = 0; i < fmd->num_sensors; i++) {
if (fmd->sensor[i].subdev == NULL)
@@ -505,6 +506,24 @@ static int fimc_md_create_links(struct fimc_md *fmd)
ret = __fimc_md_create_fimc_links(fmd, source, sensor, pad,
fimc_id++);
}
+ /* Create immutable links between each FIMC's subdev and video node */
+ flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED;
+ for (i = 0; i < FIMC_MAX_DEVS; i++) {
+ if (!fmd->fimc[i])
+ continue;
+ source = &fmd->fimc[i]->vid_cap.subdev->entity;
+ sink = &fmd->fimc[i]->vid_cap.vfd->entity;
+ ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE,
+ sink, 0, flags);
+ if (ret)
+ break;
+ /* Notify FIMC capture video node entity */
+ ret = media_entity_call(sink, link_setup, &sink->pads[0],
+ &source->pads[FIMC_SD_PAD_SOURCE], flags);
+ if (ret)
+ break;
+ }
+
return ret;
}
@@ -613,15 +632,15 @@ int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on)
static int fimc_md_link_notify(struct media_pad *source,
struct media_pad *sink, u32 flags)
{
- struct video_device *vid_dev;
+ struct v4l2_subdev *sd;
struct fimc_dev *fimc;
int ret = 0;
- if (WARN_ON(media_entity_type(sink->entity) != MEDIA_ENT_T_DEVNODE))
+ if (media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
return 0;
- vid_dev = media_entity_to_video_device(sink->entity);
- fimc = video_get_drvdata(vid_dev);
+ sd = media_entity_to_v4l2_subdev(sink->entity);
+ fimc = v4l2_get_subdevdata(sd);
if (!(flags & MEDIA_LNK_FL_ENABLED)) {
ret = __fimc_pipeline_shutdown(fimc);
--
1.7.5.4
--
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