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[media] af9033: implement DVBv5 stat block counters 

Implement following API commands:
DTV_STAT_ERROR_BLOCK_COUNT
DTV_STAT_TOTAL_BLOCK_COUNT

These returns total and uncorrected error packets from outer FEC.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Antti Palosaari 2014-09-02 08:01:10 -03:00 committed by Mauro Carvalho Chehab
parent 6b45778609
commit 204f431928
1 changed files with 32 additions and 1 deletions
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33
drivers/media/dvb-frontends/af9033.c
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@ -38,6 +38,8 @@ struct af9033_dev {
fe_status_t fe_status;
u32 ber;
u32 ucb;
u64 error_block_count;
u64 total_block_count;
struct delayed_work stat_work;
unsigned long last_stat_check;
};
@ -1015,7 +1017,7 @@ static void af9033_stat_work(struct work_struct *work)
struct af9033_dev *dev = container_of(work, struct af9033_dev, stat_work.work);
struct dtv_frontend_properties *c = &dev->fe.dtv_property_cache;
int ret, tmp, i, len;
u8 u8tmp, buf[3];
u8 u8tmp, buf[7];
dev_dbg(&dev->client->dev, "\n");
@ -1087,6 +1089,35 @@ static void af9033_stat_work(struct work_struct *work)
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
/* UCB/PER/BER */
if (dev->fe_status & FE_HAS_LOCK) {
/* outer FEC, 204 byte packets */
u16 abort_packet_count, rsd_packet_count;
/*
* Packet count used for measurement is 10000
* (rsd_packet_count). Maybe it should be increased?
*/
ret = af9033_rd_regs(dev, 0x800032, buf, 7);
if (ret)
goto err;
abort_packet_count = (buf[1] << 8) | (buf[0] << 0);
rsd_packet_count = (buf[6] << 8) | (buf[5] << 0);
dev->error_block_count += abort_packet_count;
dev->total_block_count += rsd_packet_count;
c->block_count.len = 1;
c->block_count.stat[0].scale = FE_SCALE_COUNTER;
c->block_count.stat[0].uvalue = dev->total_block_count;
c->block_error.len = 1;
c->block_error.stat[0].scale = FE_SCALE_COUNTER;
c->block_error.stat[0].uvalue = dev->error_block_count;
}
err_schedule_delayed_work:
schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(2000));
return;