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media: coda: add sequence initialization work 

Add a sequence initialization work item to be run when OUTPUT buffers
are queued in the initialization state.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Philipp Zabel 2019-06-18 12:45:15 -04:00 committed by Mauro Carvalho Chehab
parent 8e717396d8
commit 497e6b8559
3 changed files with 51 additions and 0 deletions
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25
drivers/media/platform/coda/coda-bit.c
View File

@ -1824,6 +1824,30 @@ static int __coda_decoder_seq_init(struct coda_ctx *ctx)
return 0;
}
static void coda_dec_seq_init_work(struct work_struct *work)
{
struct coda_ctx *ctx = container_of(work,
struct coda_ctx, seq_init_work);
struct coda_dev *dev = ctx->dev;
int ret;
mutex_lock(&ctx->buffer_mutex);
mutex_lock(&dev->coda_mutex);
if (ctx->initialized == 1)
goto out;
ret = __coda_decoder_seq_init(ctx);
if (ret < 0)
goto out;
ctx->initialized = 1;
out:
mutex_unlock(&dev->coda_mutex);
mutex_unlock(&ctx->buffer_mutex);
}
static int __coda_start_decoding(struct coda_ctx *ctx)
{
struct coda_q_data *q_data_src, *q_data_dst;
@ -2352,6 +2376,7 @@ const struct coda_context_ops coda_bit_decode_ops = {
.prepare_run = coda_prepare_decode,
.finish_run = coda_finish_decode,
.run_timeout = coda_decode_timeout,
.seq_init_work = coda_dec_seq_init_work,
.seq_end_work = coda_seq_end_work,
.release = coda_bit_release,
};

24
drivers/media/platform/coda/coda-common.c
View File

@ -1684,6 +1684,19 @@ static void coda_buf_queue(struct vb2_buffer *vb)
/* This set buf->sequence = ctx->qsequence++ */
coda_fill_bitstream(ctx, NULL);
mutex_unlock(&ctx->bitstream_mutex);
if (!ctx->initialized) {
/*
* Run sequence initialization in case the queued
* buffer contained headers.
*/
if (vb2_is_streaming(vb->vb2_queue) &&
ctx->ops->seq_init_work) {
queue_work(ctx->dev->workqueue,
&ctx->seq_init_work);
flush_work(&ctx->seq_init_work);
}
}
} else {
if (ctx->inst_type == CODA_INST_ENCODER &&
vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
@ -1761,6 +1774,15 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
ret = -EINVAL;
goto err;
}
if (!ctx->initialized) {
/* Run sequence initialization */
if (ctx->ops->seq_init_work) {
queue_work(ctx->dev->workqueue,
&ctx->seq_init_work);
flush_work(&ctx->seq_init_work);
}
}
}
ctx->streamon_out = 1;
@ -2317,6 +2339,8 @@ static int coda_open(struct file *file)
ctx->use_bit = !ctx->cvd->direct;
init_completion(&ctx->completion);
INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
if (ctx->ops->seq_init_work)
INIT_WORK(&ctx->seq_init_work, ctx->ops->seq_init_work);
if (ctx->ops->seq_end_work)
INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
v4l2_fh_init(&ctx->fh, video_devdata(file));

2
drivers/media/platform/coda/coda.h
View File

@ -185,6 +185,7 @@ struct coda_context_ops {
int (*prepare_run)(struct coda_ctx *ctx);
void (*finish_run)(struct coda_ctx *ctx);
void (*run_timeout)(struct coda_ctx *ctx);
void (*seq_init_work)(struct work_struct *work);
void (*seq_end_work)(struct work_struct *work);
void (*release)(struct coda_ctx *ctx);
};
@ -193,6 +194,7 @@ struct coda_ctx {
struct coda_dev *dev;
struct mutex buffer_mutex;
struct work_struct pic_run_work;
struct work_struct seq_init_work;
struct work_struct seq_end_work;
struct completion completion;
const struct coda_video_device *cvd;