Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-06 12:11:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

[media] s5p-mfc: Fix interrupt error handling routine

Browse Source 
New context states were added but handling in s5p_mfc_handle_error for
these states was not. After this patch these states are be handled
correctly.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Kamil Debski 2012-12-21 05:32:59 -03:00 committed by Mauro Carvalho Chehab
parent a26860bdbd
commit 7296e25f6e
1 changed files with 37 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
drivers/media/platform/s5p-mfc/s5p_mfc.c
View File

@ -412,62 +412,48 @@ leave_handle_frame:
}
/* Error handling for interrupt */
static void s5p_mfc_handle_error(struct s5p_mfc_ctx *ctx,
unsigned int reason, unsigned int err)
static void s5p_mfc_handle_error(struct s5p_mfc_dev *dev,
struct s5p_mfc_ctx *ctx, unsigned int reason, unsigned int err)
{
struct s5p_mfc_dev *dev;
unsigned long flags;
/* If no context is available then all necessary
* processing has been done. */
if (ctx == NULL)
return;
dev = ctx->dev;
mfc_err("Interrupt Error: %08x\n", err);
s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
wake_up_dev(dev, reason, err);
/* Error recovery is dependent on the state of context */
switch (ctx->state) {
case MFCINST_INIT:
/* This error had to happen while acquireing instance */
case MFCINST_GOT_INST:
/* This error had to happen while parsing the header */
case MFCINST_HEAD_PARSED:
/* This error had to happen while setting dst buffers */
case MFCINST_RETURN_INST:
/* This error had to happen while releasing instance */
clear_work_bit(ctx);
wake_up_ctx(ctx, reason, err);
if (test_and_clear_bit(0, &dev->hw_lock) == 0)
BUG();
s5p_mfc_clock_off();
ctx->state = MFCINST_ERROR;
break;
case MFCINST_FINISHING:
case MFCINST_FINISHED:
case MFCINST_RUNNING:
/* It is higly probable that an error occured
* while decoding a frame */
clear_work_bit(ctx);
ctx->state = MFCINST_ERROR;
/* Mark all dst buffers as having an error */
spin_lock_irqsave(&dev->irqlock, flags);
s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->dst_queue,
&ctx->vq_dst);
/* Mark all src buffers as having an error */
s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->src_queue,
&ctx->vq_src);
spin_unlock_irqrestore(&dev->irqlock, flags);
if (test_and_clear_bit(0, &dev->hw_lock) == 0)
BUG();
s5p_mfc_clock_off();
break;
default:
mfc_err("Encountered an error interrupt which had not been handled\n");
break;
if (ctx != NULL) {
/* Error recovery is dependent on the state of context */
switch (ctx->state) {
case MFCINST_RES_CHANGE_INIT:
case MFCINST_RES_CHANGE_FLUSH:
case MFCINST_RES_CHANGE_END:
case MFCINST_FINISHING:
case MFCINST_FINISHED:
case MFCINST_RUNNING:
/* It is higly probable that an error occured
* while decoding a frame */
clear_work_bit(ctx);
ctx->state = MFCINST_ERROR;
/* Mark all dst buffers as having an error */
spin_lock_irqsave(&dev->irqlock, flags);
s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue,
&ctx->dst_queue, &ctx->vq_dst);
/* Mark all src buffers as having an error */
s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue,
&ctx->src_queue, &ctx->vq_src);
spin_unlock_irqrestore(&dev->irqlock, flags);
wake_up_ctx(ctx, reason, err);
break;
default:
clear_work_bit(ctx);
ctx->state = MFCINST_ERROR;
wake_up_ctx(ctx, reason, err);
break;
}
}
if (test_and_clear_bit(0, &dev->hw_lock) == 0)
BUG();
s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
s5p_mfc_clock_off();
wake_up_dev(dev, reason, err);
return;
}
@ -632,7 +618,7 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv)
dev->warn_start)
s5p_mfc_handle_frame(ctx, reason, err);
else
s5p_mfc_handle_error(ctx, reason, err);
s5p_mfc_handle_error(dev, ctx, reason, err);
clear_bit(0, &dev->enter_suspend);
break;