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[media] coda: add support for contexts that do not use the BIT processor

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In preparation for CODA9 JPEG support, allow contexts that
control hardware units directly, without the BIT processor.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Philipp Zabel 2015-01-23 13:51:33 -03:00 committed by Mauro Carvalho Chehab
parent 540d70d577
commit a22496c662
2 changed files with 24 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
drivers/media/platform/coda/coda-common.c
View File

@ -181,6 +181,7 @@ struct coda_video_device {
const char *name;
enum coda_inst_type type;
const struct coda_context_ops *ops;
bool direct;
u32 src_formats[CODA_MAX_FORMATS];
u32 dst_formats[CODA_MAX_FORMATS];
};
@ -953,7 +954,7 @@ static int coda_job_ready(void *m2m_priv)
return 0;
}
if (ctx->inst_type == CODA_INST_DECODER) {
if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
struct list_head *meta;
bool stream_end;
int num_metas;
@ -1161,7 +1162,7 @@ static void coda_buf_queue(struct vb2_buffer *vb)
* In the decoder case, immediately try to copy the buffer into the
* bitstream ringbuffer and mark it as ready to be dequeued.
*/
if (ctx->inst_type == CODA_INST_DECODER &&
if (ctx->use_bit && ctx->inst_type == CODA_INST_DECODER &&
vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
/*
* For backwards compatibility, queuing an empty buffer marks
@ -1262,7 +1263,7 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
return 0;
/* Allow BIT decoder device_run with no new buffers queued */
if (ctx->inst_type == CODA_INST_DECODER)
if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
ctx->gopcounter = ctx->params.gop_size - 1;
@ -1626,6 +1627,7 @@ static int coda_open(struct file *file)
ctx->cvd = to_coda_video_device(vdev);
ctx->inst_type = ctx->cvd->type;
ctx->ops = ctx->cvd->ops;
ctx->use_bit = !ctx->cvd->direct;
init_completion(&ctx->completion);
INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
if (ctx->ops->seq_end_work)
@ -1680,22 +1682,24 @@ static int coda_open(struct file *file)
ctx->fh.ctrl_handler = &ctx->ctrls;
ret = coda_alloc_context_buf(ctx, &ctx->parabuf,
CODA_PARA_BUF_SIZE, "parabuf");
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf");
goto err_dma_alloc;
}
if (ctx->use_bit) {
ret = coda_alloc_context_buf(ctx, &ctx->parabuf,
CODA_PARA_BUF_SIZE, "parabuf");
if (ret < 0) {
v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf");
goto err_dma_alloc;
}
ctx->bitstream.size = CODA_MAX_FRAME_SIZE;
ctx->bitstream.vaddr = dma_alloc_writecombine(
&dev->plat_dev->dev, ctx->bitstream.size,
&ctx->bitstream.paddr, GFP_KERNEL);
if (!ctx->bitstream.vaddr) {
v4l2_err(&dev->v4l2_dev,
"failed to allocate bitstream ringbuffer");
ret = -ENOMEM;
goto err_dma_writecombine;
ctx->bitstream.size = CODA_MAX_FRAME_SIZE;
ctx->bitstream.vaddr = dma_alloc_writecombine(
&dev->plat_dev->dev, ctx->bitstream.size,
&ctx->bitstream.paddr, GFP_KERNEL);
if (!ctx->bitstream.vaddr) {
v4l2_err(&dev->v4l2_dev,
"failed to allocate bitstream ringbuffer");
ret = -ENOMEM;
goto err_dma_writecombine;
}
}
kfifo_init(&ctx->bitstream_fifo,
ctx->bitstream.vaddr, ctx->bitstream.size);
@ -1743,7 +1747,7 @@ static int coda_release(struct file *file)
v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
ctx);
if (ctx->inst_type == CODA_INST_DECODER)
if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
coda_bit_stream_end_flag(ctx);
/* If this instance is running, call .job_abort and wait for it to end */

1
drivers/media/platform/coda/coda.h
View File

@ -235,6 +235,7 @@ struct coda_ctx {
u32 frame_mem_ctrl;
int display_idx;
struct dentry *debugfs_entry;
bool use_bit;
};
extern int coda_debug;