Commit 62bed14c authored by Philipp Zabel's avatar Philipp Zabel Committed by Mauro Carvalho Chehab

[media] media: coda: wait for picture run completion in start/stop_streaming

While the CODA is running a PIC_RUN command, its registers are
not to be touched.
Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Tested-by: default avatarJavier Martin <javier.martin@vista-silicon.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 09ae956f
...@@ -137,6 +137,7 @@ struct coda_dev { ...@@ -137,6 +137,7 @@ struct coda_dev {
struct list_head instances; struct list_head instances;
unsigned long instance_mask; unsigned long instance_mask;
struct delayed_work timeout; struct delayed_work timeout;
struct completion done;
}; };
struct coda_params { struct coda_params {
...@@ -731,6 +732,7 @@ static void coda_device_run(void *m2m_priv) ...@@ -731,6 +732,7 @@ static void coda_device_run(void *m2m_priv)
/* 1 second timeout in case CODA locks up */ /* 1 second timeout in case CODA locks up */
schedule_delayed_work(&dev->timeout, HZ); schedule_delayed_work(&dev->timeout, HZ);
INIT_COMPLETION(dev->done);
coda_command_async(ctx, CODA_COMMAND_PIC_RUN); coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
} }
...@@ -975,6 +977,10 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count) ...@@ -975,6 +977,10 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
if (!(ctx->rawstreamon & ctx->compstreamon)) if (!(ctx->rawstreamon & ctx->compstreamon))
return 0; return 0;
if (coda_isbusy(dev))
if (wait_for_completion_interruptible_timeout(&dev->done, HZ) <= 0)
return -EBUSY;
ctx->gopcounter = ctx->params.gop_size - 1; ctx->gopcounter = ctx->params.gop_size - 1;
q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
...@@ -1229,20 +1235,29 @@ static int coda_stop_streaming(struct vb2_queue *q) ...@@ -1229,20 +1235,29 @@ static int coda_stop_streaming(struct vb2_queue *q)
ctx->compstreamon = 0; ctx->compstreamon = 0;
} }
if (!ctx->rawstreamon && !ctx->compstreamon) { /* Don't stop the coda unless both queues are off */
cancel_delayed_work(&dev->timeout); if (ctx->rawstreamon || ctx->compstreamon)
return 0;
v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, if (coda_isbusy(dev)) {
"%s: sent command 'SEQ_END' to coda\n", __func__); if (wait_for_completion_interruptible_timeout(&dev->done, HZ) <= 0) {
if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) { v4l2_warn(&dev->v4l2_dev,
v4l2_err(&ctx->dev->v4l2_dev, "%s: timeout, sending SEQ_END anyway\n", __func__);
"CODA_COMMAND_SEQ_END failed\n");
return -ETIMEDOUT;
} }
}
cancel_delayed_work(&dev->timeout);
coda_free_framebuffers(ctx); v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
"%s: sent command 'SEQ_END' to coda\n", __func__);
if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
v4l2_err(&dev->v4l2_dev,
"CODA_COMMAND_SEQ_END failed\n");
return -ETIMEDOUT;
} }
coda_free_framebuffers(ctx);
return 0; return 0;
} }
...@@ -1527,6 +1542,8 @@ static irqreturn_t coda_irq_handler(int irq, void *data) ...@@ -1527,6 +1542,8 @@ static irqreturn_t coda_irq_handler(int irq, void *data)
return IRQ_NONE; return IRQ_NONE;
} }
complete(&dev->done);
src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
...@@ -1582,6 +1599,11 @@ static void coda_timeout(struct work_struct *work) ...@@ -1582,6 +1599,11 @@ static void coda_timeout(struct work_struct *work)
struct coda_dev *dev = container_of(to_delayed_work(work), struct coda_dev *dev = container_of(to_delayed_work(work),
struct coda_dev, timeout); struct coda_dev, timeout);
if (completion_done(&dev->done))
return;
complete(&dev->done);
v4l2_err(&dev->v4l2_dev, "CODA PIC_RUN timeout, stopping all streams\n"); v4l2_err(&dev->v4l2_dev, "CODA PIC_RUN timeout, stopping all streams\n");
mutex_lock(&dev->dev_mutex); mutex_lock(&dev->dev_mutex);
...@@ -1865,6 +1887,8 @@ static int __devinit coda_probe(struct platform_device *pdev) ...@@ -1865,6 +1887,8 @@ static int __devinit coda_probe(struct platform_device *pdev)
spin_lock_init(&dev->irqlock); spin_lock_init(&dev->irqlock);
INIT_LIST_HEAD(&dev->instances); INIT_LIST_HEAD(&dev->instances);
INIT_DELAYED_WORK(&dev->timeout, coda_timeout); INIT_DELAYED_WORK(&dev->timeout, coda_timeout);
init_completion(&dev->done);
complete(&dev->done);
dev->plat_dev = pdev; dev->plat_dev = pdev;
dev->clk_per = devm_clk_get(&pdev->dev, "per"); dev->clk_per = devm_clk_get(&pdev->dev, "per");
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment