diff options
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2832.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c index 90d4f45d9958..6aaaec2a40c2 100644 --- a/drivers/media/dvb-frontends/rtl2832.c +++ b/drivers/media/dvb-frontends/rtl2832.c @@ -474,6 +474,8 @@ static int rtl2832_init(struct dvb_frontend *fe) goto err; #endif /* init stats here in order signal app which stats are supported */ + c->strength.len = 1; + c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; c->cnr.len = 1; c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; c->post_bit_error.len = 1; @@ -823,6 +825,24 @@ static void rtl2832_stat_work(struct work_struct *work) dev_dbg(&client->dev, "\n"); + /* signal strength */ + if (dev->fe_status & FE_HAS_SIGNAL) { + /* read digital AGC */ + ret = rtl2832_bulk_read(client, 0x305, &u8tmp, 1); + if (ret) + goto err; + + dev_dbg(&client->dev, "digital agc=%02x", u8tmp); + + u8tmp = ~u8tmp; + u16tmp = u8tmp << 8 | u8tmp << 0; + + c->strength.stat[0].scale = FE_SCALE_RELATIVE; + c->strength.stat[0].uvalue = u16tmp; + } else { + c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + } + /* CNR */ if (dev->fe_status & FE_HAS_VITERBI) { unsigned hierarchy, constellation; |