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[media] mn88472: implement PER statistics

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Implement DVBv5 PER.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Antti Palosaari
2017-03-17 13:45:48 -03:00
committed by Mauro Carvalho Chehab
parent c635a5e2cf
commit 0fc66c1949
1 changed files with 22 additions and 0 deletions
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22
drivers/media/dvb-frontends/mn88472.c
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@@ -179,6 +179,26 @@ static int mn88472_read_status(struct dvb_frontend *fe, enum fe_status *status)
c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
} }
/* PER */
if (*status & FE_HAS_SYNC) {
ret = regmap_bulk_read(dev->regmap[0], 0xe1, buf, 4);
if (ret)
goto err;
utmp1 = buf[0] << 8 | buf[1] << 0;
utmp2 = buf[2] << 8 | buf[3] << 0;
dev_dbg(&client->dev, "block_error=%u block_count=%u\n",
utmp1, utmp2);
c->block_error.stat[0].scale = FE_SCALE_COUNTER;
c->block_error.stat[0].uvalue += utmp1;
c->block_count.stat[0].scale = FE_SCALE_COUNTER;
c->block_count.stat[0].uvalue += utmp2;
} else {
c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
}
return 0; return 0;
err: err:
dev_dbg(&client->dev, "failed=%d\n", ret); dev_dbg(&client->dev, "failed=%d\n", ret);
@@ -654,6 +674,8 @@ static int mn88472_probe(struct i2c_client *client,
c = &dev->fe.dtv_property_cache; c = &dev->fe.dtv_property_cache;
c->strength.len = 1; c->strength.len = 1;
c->cnr.len = 1; c->cnr.len = 1;
c->block_error.len = 1;
c->block_count.len = 1;
/* Setup callbacks */ /* Setup callbacks */
pdata->get_dvb_frontend = mn88472_get_dvb_frontend; pdata->get_dvb_frontend = mn88472_get_dvb_frontend;