static int s5p_mfc_dec_g_v_ctrl(struct v4l2_ctrl *ctrl)
{
struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
struct s5p_mfc_dev *dev = ctx->dev;
switch (ctrl->id) {
case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
if (ctx->state >= MFCINST_HEAD_PARSED &&
ctx->state < MFCINST_ABORT) {
ctrl->val = ctx->dpb_count;
break;
} else if (ctx->state != MFCINST_INIT) {
v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
return -EINVAL;
}
/* Should wait for the header to be parsed */
s5p_mfc_clean_ctx_int_flags(ctx);
s5p_mfc_wait_for_done_ctx(ctx,
S5P_MFC_R2H_CMD_SEQ_DONE_RET, 0);
if (ctx->state >= MFCINST_HEAD_PARSED &&
ctx->state < MFCINST_ABORT) {
ctrl->val = ctx->dpb_count;
} else {
v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
return -EINVAL;
}
break;
}
return 0;
}
/* Get format */
static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
struct v4l2_pix_format_mplane *pix_mp;
mfc_debug_enter();
pix_mp = &f->fmt.pix_mp;
if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
(ctx->state == MFCINST_GOT_INST || ctx->state ==
MFCINST_RES_CHANGE_END)) {
/* If the MFC is parsing the header,
* so wait until it is finished */
s5p_mfc_clean_ctx_int_flags(ctx);
s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_SEQ_DONE_RET,
0);
}
if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
ctx->state >= MFCINST_HEAD_PARSED &&
ctx->state < MFCINST_ABORT) {
/* This is run on CAPTURE (decode output) */
/* Width and height are set to the dimensions
of the movie, the buffer is bigger and
further processing stages should crop to this
rectangle. */
pix_mp->width = ctx->buf_width;
pix_mp->height = ctx->buf_height;
pix_mp->field = V4L2_FIELD_NONE;
pix_mp->num_planes = 2;
/* Set pixelformat to the format in which MFC
outputs the decoded frame */
pix_mp->pixelformat = ctx->dst_fmt->fourcc;
pix_mp->plane_fmt[0].bytesperline = ctx->buf_width;
pix_mp->plane_fmt[0].sizeimage = ctx->luma_size;
pix_mp->plane_fmt[1].bytesperline = ctx->buf_width;
pix_mp->plane_fmt[1].sizeimage = ctx->chroma_size;
} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
/* This is run on OUTPUT
The buffer contains compressed image
so width and height have no meaning */
pix_mp->width = 0;
pix_mp->height = 0;
pix_mp->field = V4L2_FIELD_NONE;
pix_mp->plane_fmt[0].bytesperline = ctx->dec_src_buf_size;
pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size;
pix_mp->pixelformat = ctx->src_fmt->fourcc;
pix_mp->num_planes = ctx->src_fmt->num_planes;
} else {
mfc_err("Format could not be read\n");
mfc_debug(2, "%s-- with error\n", __func__);
return -EINVAL;
}
mfc_debug_leave();
return 0;
}
static int reqbufs_capture(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
struct v4l2_requestbuffers *reqbufs)
{
int ret = 0;
s5p_mfc_clock_on();
if (reqbufs->count == 0) {
mfc_debug(2, "Freeing buffers\n");
ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
if (ret)
goto out;
s5p_mfc_hw_call_void(dev->mfc_ops, release_codec_buffers, ctx);
ctx->dst_bufs_cnt = 0;
} else if (ctx->capture_state == QUEUE_FREE) {
WARN_ON(ctx->dst_bufs_cnt != 0);
mfc_debug(2, "Allocating %d buffers for CAPTURE queue\n",
reqbufs->count);
ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
if (ret)
goto out;
ctx->capture_state = QUEUE_BUFS_REQUESTED;
ctx->total_dpb_count = reqbufs->count;
ret = s5p_mfc_hw_call(dev->mfc_ops, alloc_codec_buffers, ctx);
if (ret) {
mfc_err("Failed to allocate decoding buffers\n");
reqbufs->count = 0;
vb2_reqbufs(&ctx->vq_dst, reqbufs);
ret = -ENOMEM;
ctx->capture_state = QUEUE_FREE;
goto out;
}
WARN_ON(ctx->dst_bufs_cnt != ctx->total_dpb_count);
ctx->capture_state = QUEUE_BUFS_MMAPED;
if (s5p_mfc_ctx_ready(ctx))
set_work_bit_irqsave(ctx);
s5p_mfc_hw_call_void(dev->mfc_ops, try_run, dev);
s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_INIT_BUFFERS_RET,
0);
} else {
mfc_err("Buffers have already been requested\n");
ret = -EINVAL;
}
out:
s5p_mfc_clock_off();
if (ret)
mfc_err("Failed allocating buffers for CAPTURE queue\n");
return ret;
}
void s5p_mfc_close_mfc_inst(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx)
{
ctx->state = MFCINST_RETURN_INST;
set_work_bit_irqsave(ctx);
s5p_mfc_hw_call_void(dev->mfc_ops, try_run, dev);
/* Wait until instance is returned or timeout occurred */
if (s5p_mfc_wait_for_done_ctx(ctx,
S5P_MFC_R2H_CMD_CLOSE_INSTANCE_RET, 0))
mfc_err("Err returning instance\n");
/* Free resources */
s5p_mfc_hw_call_void(dev->mfc_ops, release_codec_buffers, ctx);
s5p_mfc_hw_call_void(dev->mfc_ops, release_instance_buffer, ctx);
if (ctx->type == MFCINST_DECODER)
s5p_mfc_hw_call_void(dev->mfc_ops, release_dec_desc_buffer, ctx);
ctx->inst_no = MFC_NO_INSTANCE_SET;
ctx->state = MFCINST_FREE;
}
/* Stream on */
static int vidioc_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
struct s5p_mfc_dev *dev = ctx->dev;
int ret = -EINVAL;
mfc_debug_enter();
if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
if (ctx->state == MFCINST_INIT) {
ctx->dst_bufs_cnt = 0;
ctx->src_bufs_cnt = 0;
ctx->capture_state = QUEUE_FREE;
ctx->output_state = QUEUE_FREE;
s5p_mfc_hw_call(dev->mfc_ops, alloc_instance_buffer,
ctx);
s5p_mfc_hw_call(dev->mfc_ops, alloc_dec_temp_buffers,
ctx);
set_work_bit_irqsave(ctx);
s5p_mfc_clean_ctx_int_flags(ctx);
s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
if (s5p_mfc_wait_for_done_ctx(ctx,
S5P_MFC_R2H_CMD_OPEN_INSTANCE_RET, 0)) {
/* Error or timeout */
mfc_err("Error getting instance from hardware\n");
s5p_mfc_hw_call(dev->mfc_ops,
release_instance_buffer, ctx);
s5p_mfc_hw_call(dev->mfc_ops,
release_dec_desc_buffer, ctx);
return -EIO;
}
mfc_debug(2, "Got instance number: %d\n", ctx->inst_no);
}
ret = vb2_streamon(&ctx->vq_src, type);
}
else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
ret = vb2_streamon(&ctx->vq_dst, type);
mfc_debug_leave();
return ret;
}
int s5p_mfc_open_mfc_inst(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx)
{
int ret = 0;
ret = s5p_mfc_hw_call(dev->mfc_ops, alloc_instance_buffer, ctx);
if (ret) {
mfc_err("Failed allocating instance buffer\n");
goto err;
}
if (ctx->type == MFCINST_DECODER) {
ret = s5p_mfc_hw_call(dev->mfc_ops,
alloc_dec_temp_buffers, ctx);
if (ret) {
mfc_err("Failed allocating temporary buffers\n");
goto err_free_inst_buf;
}
}
set_work_bit_irqsave(ctx);
s5p_mfc_clean_ctx_int_flags(ctx);
s5p_mfc_hw_call_void(dev->mfc_ops, try_run, dev);
if (s5p_mfc_wait_for_done_ctx(ctx,
S5P_MFC_R2H_CMD_OPEN_INSTANCE_RET, 0)) {
/* Error or timeout */
mfc_err("Error getting instance from hardware\n");
ret = -EIO;
goto err_free_desc_buf;
}
mfc_debug(2, "Got instance number: %d\n", ctx->inst_no);
return ret;
err_free_desc_buf:
if (ctx->type == MFCINST_DECODER)
s5p_mfc_hw_call_void(dev->mfc_ops, release_dec_desc_buffer, ctx);
err_free_inst_buf:
s5p_mfc_hw_call_void(dev->mfc_ops, release_instance_buffer, ctx);
err:
return ret;
}
/* Reqeust buffers */
static int vidioc_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *reqbufs)
{
struct s5p_mfc_dev *dev = video_drvdata(file);
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
int ret = 0;
if (reqbufs->memory != V4L2_MEMORY_MMAP) {
mfc_err("Only V4L2_MEMORY_MAP is supported\n");
return -EINVAL;
}
if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
/* Can only request buffers after an instance has been opened.*/
if (ctx->state == MFCINST_INIT) {
ctx->src_bufs_cnt = 0;
if (reqbufs->count == 0) {
mfc_debug(2, "Freeing buffers\n");
s5p_mfc_clock_on();
ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
s5p_mfc_clock_off();
return ret;
}
/* Decoding */
if (ctx->output_state != QUEUE_FREE) {
mfc_err("Bufs have already been requested\n");
return -EINVAL;
}
s5p_mfc_clock_on();
ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
s5p_mfc_clock_off();
if (ret) {
mfc_err("vb2_reqbufs on output failed\n");
return ret;
}
mfc_debug(2, "vb2_reqbufs: %d\n", ret);
ctx->output_state = QUEUE_BUFS_REQUESTED;
}
} else if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
ctx->dst_bufs_cnt = 0;
if (reqbufs->count == 0) {
mfc_debug(2, "Freeing buffers\n");
s5p_mfc_clock_on();
ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
s5p_mfc_clock_off();
return ret;
}
if (ctx->capture_state != QUEUE_FREE) {
mfc_err("Bufs have already been requested\n");
return -EINVAL;
}
ctx->capture_state = QUEUE_BUFS_REQUESTED;
s5p_mfc_clock_on();
ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
s5p_mfc_clock_off();
if (ret) {
mfc_err("vb2_reqbufs on capture failed\n");
return ret;
}
if (reqbufs->count < ctx->dpb_count) {
mfc_err("Not enough buffers allocated\n");
reqbufs->count = 0;
s5p_mfc_clock_on();
ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
s5p_mfc_clock_off();
return -ENOMEM;
}
ctx->total_dpb_count = reqbufs->count;
ret = s5p_mfc_hw_call(dev->mfc_ops, alloc_codec_buffers, ctx);
if (ret) {
mfc_err("Failed to allocate decoding buffers\n");
reqbufs->count = 0;
s5p_mfc_clock_on();
ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
s5p_mfc_clock_off();
return -ENOMEM;
}
if (ctx->dst_bufs_cnt == ctx->total_dpb_count) {
ctx->capture_state = QUEUE_BUFS_MMAPED;
} else {
mfc_err("Not all buffers passed to buf_init\n");
reqbufs->count = 0;
s5p_mfc_clock_on();
ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
s5p_mfc_hw_call(dev->mfc_ops, release_codec_buffers,
ctx);
s5p_mfc_clock_off();
return -ENOMEM;
}
if (s5p_mfc_ctx_ready(ctx))
set_work_bit_irqsave(ctx);
s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
s5p_mfc_wait_for_done_ctx(ctx,
S5P_MFC_R2H_CMD_INIT_BUFFERS_RET, 0);
}
return ret;
}
