#include "fimc-mdevice.h"
#include "fimc-core.h"
-static void fimc_capture_state_cleanup(struct fimc_dev *fimc)
+static int fimc_init_capture(struct fimc_dev *fimc)
+{
+ struct fimc_ctx *ctx = fimc->vid_cap.ctx;
+ struct fimc_sensor_info *sensor;
+ unsigned long flags;
+ int ret = 0;
+
+ if (fimc->pipeline.sensor == NULL || ctx == NULL)
+ return -ENXIO;
+ if (ctx->s_frame.fmt == NULL)
+ return -EINVAL;
+
+ sensor = v4l2_get_subdev_hostdata(fimc->pipeline.sensor);
+
+ spin_lock_irqsave(&fimc->slock, flags);
+ fimc_prepare_dma_offset(ctx, &ctx->d_frame);
+ fimc_set_yuv_order(ctx);
+
+ fimc_hw_set_camera_polarity(fimc, sensor->pdata);
+ fimc_hw_set_camera_type(fimc, sensor->pdata);
+ fimc_hw_set_camera_source(fimc, sensor->pdata);
+ fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
+
+ ret = fimc_set_scaler_info(ctx);
+ if (!ret) {
+ fimc_hw_set_input_path(ctx);
+ fimc_hw_set_prescaler(ctx);
+ fimc_hw_set_mainscaler(ctx);
+ fimc_hw_set_target_format(ctx);
+ fimc_hw_set_rotation(ctx);
+ fimc_hw_set_effect(ctx, false);
+ fimc_hw_set_output_path(ctx);
+ fimc_hw_set_out_dma(ctx);
+ if (fimc->variant->has_alpha)
+ fimc_hw_set_rgb_alpha(ctx);
+ clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
+ }
+ spin_unlock_irqrestore(&fimc->slock, flags);
+ return ret;
+}
+
+static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend)
{
struct fimc_vid_cap *cap = &fimc->vid_cap;
struct fimc_vid_buffer *buf;
unsigned long flags;
+ bool streaming;
spin_lock_irqsave(&fimc->slock, flags);
- fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_PEND |
- 1 << ST_CAPT_SHUT | 1 << ST_CAPT_STREAM);
+ streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM);
- fimc->vid_cap.active_buf_cnt = 0;
+ fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT |
+ 1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM);
+ if (!suspend)
+ fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED);
- /* Release buffers that were enqueued in the driver by videobuf2. */
- while (!list_empty(&cap->pending_buf_q)) {
- buf = pending_queue_pop(cap);
+ /* Release unused buffers */
+ while (!suspend && !list_empty(&cap->pending_buf_q)) {
+ buf = fimc_pending_queue_pop(cap);
vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
}
-
+ /* If suspending put unused buffers onto pending queue */
while (!list_empty(&cap->active_buf_q)) {
- buf = active_queue_pop(cap);
- vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ buf = fimc_active_queue_pop(cap);
+ if (suspend)
+ fimc_pending_queue_add(cap, buf);
+ else
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
}
+ set_bit(ST_CAPT_SUSPENDED, &fimc->state);
+
+ fimc_hw_reset(fimc);
+ cap->buf_index = 0;
spin_unlock_irqrestore(&fimc->slock, flags);
+
+ if (streaming)
+ return fimc_pipeline_s_stream(fimc, 0);
+ else
+ return 0;
}
-static int fimc_stop_capture(struct fimc_dev *fimc)
+static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend)
{
- struct fimc_vid_cap *cap = &fimc->vid_cap;
unsigned long flags;
if (!fimc_capture_active(fimc))
wait_event_timeout(fimc->irq_queue,
!test_bit(ST_CAPT_SHUT, &fimc->state),
- FIMC_SHUTDOWN_TIMEOUT);
-
- v4l2_subdev_call(cap->sd, video, s_stream, 0);
+ (2*HZ/10)); /* 200 ms */
- fimc_capture_state_cleanup(fimc);
- dbg("state: 0x%lx", fimc->state);
- return 0;
+ return fimc_capture_state_cleanup(fimc, suspend);
}
-
-static int start_streaming(struct vb2_queue *q, unsigned int count)
+/**
+ * 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_ctx *ctx = q->drv_priv;
struct fimc_dev *fimc = ctx->fimc_dev;
- struct s5p_fimc_isp_info *isp_info;
- int min_bufs;
int ret;
- fimc_hw_reset(fimc);
-
- ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_stream, 1);
- if (ret && ret != -ENOIOCTLCMD)
- goto error;
-
- ret = fimc_prepare_config(ctx, ctx->state);
- if (ret)
- goto error;
+ if (!test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
+ return 0;
- isp_info = &fimc->pdata->isp_info[fimc->vid_cap.input_index];
- fimc_hw_set_camera_type(fimc, isp_info);
- fimc_hw_set_camera_source(fimc, isp_info);
+ spin_lock(&ctx->slock);
fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
-
- if (ctx->state & FIMC_PARAMS) {
- ret = fimc_set_scaler_info(ctx);
- if (ret) {
- err("Scaler setup error");
- goto error;
- }
- fimc_hw_set_input_path(ctx);
+ 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_hw_set_effect(ctx);
+ fimc_prepare_dma_offset(ctx, &ctx->d_frame);
+ fimc_hw_set_out_dma(ctx);
+ if (fimc->variant->has_alpha)
+ fimc_hw_set_rgb_alpha(ctx);
+ clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
}
+ spin_unlock(&ctx->slock);
+ return ret;
+}
- fimc_hw_set_output_path(ctx);
- fimc_hw_set_out_dma(ctx);
+static int start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct fimc_ctx *ctx = q->drv_priv;
+ struct fimc_dev *fimc = ctx->fimc_dev;
+ struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+ int min_bufs;
+ int ret;
- INIT_LIST_HEAD(&fimc->vid_cap.pending_buf_q);
- INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
- fimc->vid_cap.frame_count = 0;
- fimc->vid_cap.buf_index = 0;
+ vid_cap->frame_count = 0;
+
+ ret = fimc_init_capture(fimc);
+ if (ret)
+ goto error;
set_bit(ST_CAPT_PEND, &fimc->state);
min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
- if (fimc->vid_cap.active_buf_cnt >= min_bufs)
+ if (vid_cap->active_buf_cnt >= min_bufs &&
+ !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
fimc_activate_capture(ctx);
+ if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
+ fimc_pipeline_s_stream(fimc, 1);
+ }
+
return 0;
error:
- fimc_capture_state_cleanup(fimc);
+ fimc_capture_state_cleanup(fimc, false);
return ret;
}
if (!fimc_capture_active(fimc))
return -EINVAL;
- return fimc_stop_capture(fimc);
+ return fimc_stop_capture(fimc, false);
}
int fimc_capture_suspend(struct fimc_dev *fimc)
{
- return -EBUSY;
+ bool suspend = fimc_capture_busy(fimc);
+
+ int ret = fimc_stop_capture(fimc, suspend);
+ if (ret)
+ return ret;
+ return fimc_pipeline_shutdown(fimc);
}
+static void buffer_queue(struct vb2_buffer *vb);
+
int fimc_capture_resume(struct fimc_dev *fimc)
{
- return 0;
-}
+ struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+ struct fimc_vid_buffer *buf;
+ int i;
-static unsigned int get_plane_size(struct fimc_frame *fr, unsigned int plane)
-{
- if (!fr || plane >= fr->fmt->memplanes)
+ if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state))
return 0;
- return fr->f_width * fr->f_height * fr->fmt->depth[plane] / 8;
+
+ INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
+ vid_cap->buf_index = 0;
+ fimc_pipeline_initialize(fimc, &fimc->vid_cap.vfd->entity,
+ false);
+ fimc_init_capture(fimc);
+
+ clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
+
+ for (i = 0; i < vid_cap->reqbufs_count; i++) {
+ if (list_empty(&vid_cap->pending_buf_q))
+ break;
+ buf = fimc_pending_queue_pop(vid_cap);
+ buffer_queue(&buf->vb);
+ }
+ return 0;
+
}
-static int queue_setup(struct vb2_queue *vq, unsigned int *num_buffers,
- unsigned int *num_planes, unsigned int sizes[],
- void *allocators[])
+static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[], void *allocators[])
{
+ const struct v4l2_pix_format_mplane *pixm = NULL;
struct fimc_ctx *ctx = vq->drv_priv;
- struct fimc_fmt *fmt = ctx->d_frame.fmt;
+ struct fimc_frame *frame = &ctx->d_frame;
+ struct fimc_fmt *fmt = frame->fmt;
+ unsigned long wh;
int i;
- if (!fmt)
+ if (pfmt) {
+ pixm = &pfmt->fmt.pix_mp;
+ fmt = fimc_find_format(&pixm->pixelformat, NULL,
+ FMT_FLAGS_CAM | FMT_FLAGS_M2M, -1);
+ wh = pixm->width * pixm->height;
+ } else {
+ wh = frame->f_width * frame->f_height;
+ }
+
+ if (fmt == NULL)
return -EINVAL;
*num_planes = fmt->memplanes;
for (i = 0; i < fmt->memplanes; i++) {
- sizes[i] = get_plane_size(&ctx->d_frame, i);
+ unsigned int size = (wh * fmt->depth[i]) / 8;
+ if (pixm)
+ sizes[i] = max(size, pixm->plane_fmt[i].sizeimage);
+ else
+ sizes[i] = size;
allocators[i] = ctx->fimc_dev->alloc_ctx;
}
struct fimc_ctx *ctx = vq->drv_priv;
int i;
- if (!ctx->d_frame.fmt || vq->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ if (ctx->d_frame.fmt == NULL)
return -EINVAL;
for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) {
- unsigned long size = get_plane_size(&ctx->d_frame, i);
+ unsigned long size = ctx->d_frame.payload[i];
if (vb2_plane_size(vb, i) < size) {
v4l2_err(ctx->fimc_dev->vid_cap.vfd,
vb2_plane_size(vb, i), size);
return -EINVAL;
}
-
vb2_set_plane_payload(vb, i, size);
}
static void buffer_queue(struct vb2_buffer *vb)
{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
- struct fimc_dev *fimc = ctx->fimc_dev;
struct fimc_vid_buffer *buf
= container_of(vb, struct fimc_vid_buffer, vb);
+ struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct fimc_dev *fimc = ctx->fimc_dev;
struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
unsigned long flags;
int min_bufs;
spin_lock_irqsave(&fimc->slock, flags);
fimc_prepare_addr(ctx, &buf->vb, &ctx->d_frame, &buf->paddr);
- if (!test_bit(ST_CAPT_STREAM, &fimc->state)
- && vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) {
+ if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) &&
+ !test_bit(ST_CAPT_STREAM, &fimc->state) &&
+ vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) {
/* Setup the buffer directly for processing. */
int buf_id = (vid_cap->reqbufs_count == 1) ? -1 :
vid_cap->buf_index;
fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id);
buf->index = vid_cap->buf_index;
- active_queue_add(vid_cap, buf);
+ fimc_active_queue_add(vid_cap, buf);
if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS)
vid_cap->buf_index = 0;
min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1;
+
if (vb2_is_streaming(&vid_cap->vbq) &&
vid_cap->active_buf_cnt >= min_bufs &&
- !test_and_set_bit(ST_CAPT_STREAM, &fimc->state))
+ !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
fimc_activate_capture(ctx);
+ spin_unlock_irqrestore(&fimc->slock, flags);
+ if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
+ fimc_pipeline_s_stream(fimc, 1);
+ return;
+ }
spin_unlock_irqrestore(&fimc->slock, flags);
}
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);
if (fimc_m2m_active(fimc))
return -EBUSY;
- ret = pm_runtime_get_sync(&fimc->pdev->dev);
- if (ret < 0) {
- v4l2_fh_release(file);
- return ret;
- }
-
- if (++fimc->vid_cap.refcnt == 1)
+ set_bit(ST_CAPT_BUSY, &fimc->state);
+ pm_runtime_get_sync(&fimc->pdev->dev);
+
+ if (++fimc->vid_cap.refcnt == 1) {
+ ret = fimc_pipeline_initialize(fimc,
+ &fimc->vid_cap.vfd->entity, true);
+ if (ret < 0) {
+ dev_err(&fimc->pdev->dev,
+ "Video pipeline initialization failed\n");
+ pm_runtime_put_sync(&fimc->pdev->dev);
+ fimc->vid_cap.refcnt--;
+ v4l2_fh_release(file);
+ clear_bit(ST_CAPT_BUSY, &fimc->state);
+ 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;
}
dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
if (--fimc->vid_cap.refcnt == 0) {
- fimc_stop_capture(fimc);
- fimc_ctrls_delete(fimc->vid_cap.ctx);
- vb2_queue_release(&fimc->vid_cap.vbq);
+ clear_bit(ST_CAPT_BUSY, &fimc->state);
+ fimc_stop_capture(fimc, false);
+ fimc_pipeline_shutdown(fimc);
+ clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
}
pm_runtime_put(&fimc->pdev->dev);
+ if (fimc->vid_cap.refcnt == 0) {
+ vb2_queue_release(&fimc->vid_cap.vbq);
+ fimc_ctrls_delete(fimc->vid_cap.ctx);
+ }
return v4l2_fh_release(file);
}
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 (var->min_vsize_align == 1 && !rotation)
+ 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)
{
strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
cap->bus_info[0] = 0;
- cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_VIDEO_CAPTURE_MPLANE;
+ cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
return 0;
}
-/* Synchronize formats of the camera interface input and attached sensor. */
-static int sync_capture_fmt(struct fimc_ctx *ctx)
+static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
{
- struct fimc_frame *frame = &ctx->s_frame;
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct v4l2_mbus_framefmt *fmt = &fimc->vid_cap.fmt;
- int ret;
+ struct fimc_fmt *fmt;
- fmt->width = ctx->d_frame.o_width;
- fmt->height = ctx->d_frame.o_height;
-
- ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_mbus_fmt, fmt);
- if (ret == -ENOIOCTLCMD) {
- err("s_mbus_fmt failed");
- return ret;
- }
- dbg("w: %d, h: %d, code= %d", fmt->width, fmt->height, fmt->code);
+ fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M,
+ f->index);
+ if (!fmt)
+ return -EINVAL;
+ strncpy(f->description, fmt->name, sizeof(f->description) - 1);
+ f->pixelformat = fmt->fourcc;
+ if (fmt->fourcc == V4L2_MBUS_FMT_JPEG_1X8)
+ f->flags |= V4L2_FMT_FLAG_COMPRESSED;
+ return 0;
+}
- frame->fmt = find_mbus_format(fmt, FMT_FLAGS_CAM);
- if (!frame->fmt) {
- err("fimc source format not found\n");
+/**
+ * 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->height != tfmt->height) {
+ 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->height != tfmt->height)
+ 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->height == tfmt->height)
+ break;
}
- frame->f_width = fmt->width;
- frame->f_height = fmt->height;
- frame->width = fmt->width;
- frame->height = fmt->height;
- frame->o_width = fmt->width;
- frame->o_height = fmt->height;
- frame->offs_h = 0;
- frame->offs_v = 0;
+ 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_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;
- return fimc_try_fmt_mplane(ctx, f);
+ 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 void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, bool jpeg)
+{
+ ctx->scaler.enabled = !jpeg;
+ fimc_ctrls_activate(ctx, !jpeg);
+
+ if (jpeg)
+ set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
+ else
+ clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
+}
+
+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;
-
- ret = fimc_try_fmt_mplane(ctx, f);
- if (ret)
- return ret;
-
- 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 = find_format(f, FMT_FLAGS_M2M | FMT_FLAGS_CAM);
- if (!frame->fmt) {
- v4l2_err(fimc->vid_cap.vfd,
- "Not supported capture (FIMC target) color format\n");
- return -EINVAL;
+ /* 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;
+ /* Update RGB Alpha control state and value range */
+ fimc_alpha_ctrl_update(ctx);
+
+ /* 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);
+
+ fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ff->fmt->color));
+
+ /* 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);
- ret = sync_capture_fmt(ctx);
- return ret;
+ return fimc_capture_set_format(fimc, f);
}
static int fimc_cap_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
{
struct fimc_dev *fimc = video_drvdata(file);
+ struct v4l2_subdev *sd = fimc->pipeline.sensor;
if (i->index != 0)
return -EINVAL;
-
i->type = V4L2_INPUT_TYPE_CAMERA;
+ if (sd)
+ strlcpy(i->name, sd->name, sizeof(i->name));
return 0;
}
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) || !fimc->vid_cap.sd)
+ 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);
}
enum v4l2_buf_type type)
{
struct fimc_dev *fimc = video_drvdata(file);
+ struct v4l2_subdev *sd = fimc->pipeline.sensor;
+ int ret;
- return vb2_streamoff(&fimc->vid_cap.vbq, type);
+ ret = vb2_streamoff(&fimc->vid_cap.vbq, type);
+ if (ret == 0)
+ media_entity_pipeline_stop(&sd->entity);
+ return ret;
}
static int fimc_cap_reqbufs(struct file *file, void *priv,
return vb2_dqbuf(&fimc->vid_cap.vbq, buf, file->f_flags & O_NONBLOCK);
}
-static int fimc_cap_cropcap(struct file *file, void *fh,
- struct v4l2_cropcap *cr)
+static int fimc_cap_create_bufs(struct file *file, void *priv,
+ struct v4l2_create_buffers *create)
{
struct fimc_dev *fimc = video_drvdata(file);
- struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
- if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
- return -EINVAL;
+ return vb2_create_bufs(&fimc->vid_cap.vbq, create);
+}
- cr->bounds.left = 0;
- cr->bounds.top = 0;
- cr->bounds.width = f->o_width;
- cr->bounds.height = f->o_height;
- cr->defrect = cr->bounds;
+static int fimc_cap_prepare_buf(struct file *file, void *priv,
+ struct v4l2_buffer *b)
+{
+ struct fimc_dev *fimc = video_drvdata(file);
- return 0;
+ return vb2_prepare_buf(&fimc->vid_cap.vbq, b);
}
-static int fimc_cap_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+static int fimc_cap_g_selection(struct file *file, void *fh,
+ struct v4l2_selection *s)
{
struct fimc_dev *fimc = video_drvdata(file);
- struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
+ struct fimc_ctx *ctx = fimc->vid_cap.ctx;
+ struct fimc_frame *f = &ctx->s_frame;
- cr->c.left = f->offs_h;
- cr->c.top = f->offs_v;
- cr->c.width = f->width;
- cr->c.height = f->height;
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return -EINVAL;
- return 0;
+ switch (s->target) {
+ case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ f = &ctx->d_frame;
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ s->r.left = 0;
+ s->r.top = 0;
+ s->r.width = f->o_width;
+ s->r.height = f->o_height;
+ return 0;
+
+ case V4L2_SEL_TGT_COMPOSE_ACTIVE:
+ f = &ctx->d_frame;
+ case V4L2_SEL_TGT_CROP_ACTIVE:
+ s->r.left = f->offs_h;
+ s->r.top = f->offs_v;
+ s->r.width = f->width;
+ s->r.height = f->height;
+ return 0;
+ }
+
+ return -EINVAL;
}
-static int fimc_cap_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+/* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
+int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
+{
+ if (a->left < b->left || a->top < b->top)
+ return 0;
+ if (a->left + a->width > b->left + b->width)
+ return 0;
+ if (a->top + a->height > b->top + b->height)
+ return 0;
+
+ return 1;
+}
+
+static int fimc_cap_s_selection(struct file *file, void *fh,
+ struct v4l2_selection *s)
{
struct fimc_dev *fimc = video_drvdata(file);
struct fimc_ctx *ctx = fimc->vid_cap.ctx;
+ struct v4l2_rect rect = s->r;
struct fimc_frame *f;
- int ret = -EINVAL;
-
- if (fimc_capture_active(fimc))
- return -EBUSY;
+ unsigned long flags;
+ unsigned int pad;
- ret = fimc_try_crop(ctx, cr);
- if (ret)
- return ret;
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return -EINVAL;
- if (!(ctx->state & FIMC_DST_FMT)) {
- v4l2_err(fimc->vid_cap.vfd, "Capture format is not set\n");
+ switch (s->target) {
+ case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ case V4L2_SEL_TGT_COMPOSE_ACTIVE:
+ f = &ctx->d_frame;
+ pad = FIMC_SD_PAD_SOURCE;
+ break;
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ case V4L2_SEL_TGT_CROP_ACTIVE:
+ f = &ctx->s_frame;
+ pad = FIMC_SD_PAD_SINK;
+ break;
+ default:
return -EINVAL;
}
- 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, &rect, pad);
+
+ if (s->flags & V4L2_SEL_FLAG_LE &&
+ !enclosed_rectangle(&rect, &s->r))
+ return -ERANGE;
- f->offs_h = cr->c.left;
- f->offs_v = cr->c.top;
- f->width = cr->c.width;
- f->height = cr->c.height;
+ if (s->flags & V4L2_SEL_FLAG_GE &&
+ !enclosed_rectangle(&s->r, &rect))
+ return -ERANGE;
+ s->r = rect;
+ spin_lock_irqsave(&fimc->slock, flags);
+ set_frame_crop(f, s->r.left, s->r.top, s->r.width,
+ s->r.height);
+ spin_unlock_irqrestore(&fimc->slock, flags);
+
+ set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
return 0;
}
-
static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
.vidioc_querycap = fimc_vidioc_querycap_capture,
- .vidioc_enum_fmt_vid_cap_mplane = fimc_vidioc_enum_fmt_mplane,
+ .vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane,
.vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane,
.vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane,
.vidioc_g_fmt_vid_cap_mplane = fimc_cap_g_fmt_mplane,
.vidioc_qbuf = fimc_cap_qbuf,
.vidioc_dqbuf = fimc_cap_dqbuf,
+ .vidioc_prepare_buf = fimc_cap_prepare_buf,
+ .vidioc_create_bufs = fimc_cap_create_bufs,
+
.vidioc_streamon = fimc_cap_streamon,
.vidioc_streamoff = fimc_cap_streamoff,
- .vidioc_g_crop = fimc_cap_g_crop,
- .vidioc_s_crop = fimc_cap_s_crop,
- .vidioc_cropcap = fimc_cap_cropcap,
+ .vidioc_g_selection = fimc_cap_g_selection,
+ .vidioc_s_selection = fimc_cap_s_selection,
.vidioc_enum_input = fimc_cap_enum_input,
.vidioc_s_input = fimc_cap_s_input,
.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,
};
+/**
+ * fimc_sensor_notify - v4l2_device notification from a sensor subdev
+ * @sd: pointer to a subdev generating the notification
+ * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY
+ * @arg: pointer to an u32 type integer that stores the frame payload value
+ *
+ * The End Of Frame notification sent by sensor subdev in its still capture
+ * mode. If there is only a single VSYNC generated by the sensor at the
+ * beginning of a frame transmission, FIMC does not issue the LastIrq
+ * (end of frame) interrupt. And this notification is used to complete the
+ * frame capture and returning a buffer to user-space. Subdev drivers should
+ * call this notification from their last 'End of frame capture' interrupt.
+ */
+void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
+ void *arg)
+{
+ struct fimc_sensor_info *sensor;
+ struct fimc_vid_buffer *buf;
+ struct fimc_md *fmd;
+ struct fimc_dev *fimc;
+ unsigned long flags;
+
+ if (sd == NULL)
+ return;
+
+ sensor = v4l2_get_subdev_hostdata(sd);
+ fmd = entity_to_fimc_mdev(&sd->entity);
+
+ spin_lock_irqsave(&fmd->slock, flags);
+ fimc = sensor ? sensor->host : NULL;
+
+ if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY &&
+ test_bit(ST_CAPT_PEND, &fimc->state)) {
+ unsigned long irq_flags;
+ spin_lock_irqsave(&fimc->slock, irq_flags);
+ if (!list_empty(&fimc->vid_cap.active_buf_q)) {
+ buf = list_entry(fimc->vid_cap.active_buf_q.next,
+ struct fimc_vid_buffer, list);
+ vb2_set_plane_payload(&buf->vb, 0, *((u32 *)arg));
+ }
+ fimc_capture_irq_handler(fimc, true);
+ fimc_deactivate_capture(fimc);
+ spin_unlock_irqrestore(&fimc->slock, irq_flags);
+ }
+ spin_unlock_irqrestore(&fmd->slock, flags);
+}
+
+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;
+ }
+ /* Update RGB Alpha control state and value range */
+ fimc_alpha_ctrl_update(ctx);
+
+ fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ffmt->color));
+
+ 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);
+ fimc->vid_cap.mf = *mf;
+ 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_unlock(&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);
+ fimc->vid_cap.subdev = 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 v4l2_format f;
- 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 */
- f.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB32;
- fr = &ctx->d_frame;
- fr->fmt = find_format(&f, FMT_FLAGS_M2M);
- 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) {
vid_cap->active_buf_cnt = 0;
vid_cap->reqbufs_count = 0;
vid_cap->refcnt = 0;
- /* Default color format for image sensor */
- vid_cap->fmt.code = V4L2_MBUS_FMT_YUYV8_2X8;
INIT_LIST_HEAD(&vid_cap->pending_buf_q);
INIT_LIST_HEAD(&vid_cap->active_buf_q);
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 / linux-flexiantxendom0-3.2.10.git / blobdiff