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add packet loss and stall counter

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none
2020-03-31 16:43:18 +02:00
parent ee6eab9ead
commit 54e8bb1575
2 changed files with 25 additions and 6 deletions
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28
ddbridge/ddbridge-core.c
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@@ -532,6 +532,14 @@ static void ddb_input_stop_unlocked(struct ddb_input *input)
if (input->dma) {
ddbwritel(dev, 0, DMA_BUFFER_CONTROL(input->dma));
input->dma->running = 0;
if (input->dma->stall_count)
dev_warn(input->port->dev->dev,
"DMA stalled %u times!\n",
input->dma->stall_count);
if (input->dma->packet_loss)
dev_warn(input->port->dev->dev,
"%u packets lost due to low DMA performance!\n",
input->dma->packet_loss);
}
}
@@ -554,6 +562,8 @@ static void ddb_input_start_unlocked(struct ddb_input *input)
input->dma->cbuf = 0;
input->dma->coff = 0;
input->dma->stat = 0;
input->dma->stall_count = 0;
input->dma->packet_loss = 0;
ddbwritel(dev, 0, DMA_BUFFER_CONTROL(input->dma));
}
ddbwritel(dev, 0, TS_CONTROL(input));
@@ -2424,10 +2434,19 @@ static void input_tasklet(unsigned long data)
dma->stat = ddbreadl(dev, DMA_BUFFER_CURRENT(dma));
dma->ctrl = ddbreadl(dev, DMA_BUFFER_CONTROL(dma));
#if 0
if (4 & dma->ctrl)
dev_err(dev->dev, "Overflow dma %d\n", dma->nr);
#if 1
{
u32 packet_loss = dma->packet_loss;
u32 cur_counter = TS_STAT(input) & 0xFFFF;
if ( cur_counter < (packet_loss & 0xFFFF) )
packet_loss += 0x10000;
packet_loss = ((packet_loss & 0xFFFF0000) | cur_counter);
dma->packet_loss = packet_loss;
}
#endif
if (4 & dma->ctrl)
dma->stall_count++;
if (input->redi)
input_write_dvb(input, input->redi);
if (input->redo)
@@ -4175,9 +4194,6 @@ static struct device_attribute ddb_attrs_fanspeed[] = {
static struct class ddb_class = {
.name = "ddbridge",
.owner = THIS_MODULE,
#if 0
.dev_attrs = ddb_attrs,
#endif
.devnode = ddb_devnode,
};

3
ddbridge/ddbridge.h
View File

@@ -214,6 +214,9 @@ struct ddb_dma {
u32 ctrl;
u32 cbuf;
u32 coff;
u32 stall_count;
u32 packet_loss;
};
struct ddb_dvb {