diff options
| author |   Antti Palosaari <crope@iki.fi> | 2014-12-09 10:20:01 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-02-02 17:55:28 -0200 |
| commit | d512e286512c38e8921317c3a2c772559a91a636 (patch) | |
| tree | 0856b5d9b2ceb4a99c560474593334a0ab59d00c /drivers/media/dvb-frontends | |
| parent | [media] rtl2830: implement DVBv5 BER statistic (diff) | |
| download | linux-dev-d512e286512c38e8921317c3a2c772559a91a636.tar.xz linux-dev-d512e286512c38e8921317c3a2c772559a91a636.zip | |
[media] rtl2830: wrap DVBv5 signal strength to DVBv3
Change legacy DVBv3 signal strength to return values calculated by
DVBv5 statistics.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/dvb-frontends')
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2830.c | 27 |
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/media/dvb-frontends/rtl2830.c b/drivers/media/dvb-frontends/rtl2830.c index 147b3a6898e1..a02ccdf2fda0 100644 --- a/drivers/media/dvb-frontends/rtl2830.c +++ b/drivers/media/dvb-frontends/rtl2830.c @@ -623,33 +623,14 @@ static int rtl2830_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) static int rtl2830_read_signal_strength(struct dvb_frontend *fe, u16 *strength) { - struct i2c_client *client = fe->demodulator_priv; - struct rtl2830_dev *dev = i2c_get_clientdata(client); - int ret; - u8 buf[2]; - u16 if_agc_raw, if_agc; - - if (dev->sleeping) - return 0; - - ret = rtl2830_rd_regs(client, 0x359, buf, 2); - if (ret) - goto err; - - if_agc_raw = (buf[0] << 8 | buf[1]) & 0x3fff; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; - if (if_agc_raw & (1 << 9)) - if_agc = -(~(if_agc_raw - 1) & 0x1ff); + if (c->strength.stat[0].scale == FE_SCALE_RELATIVE) + *strength = c->strength.stat[0].uvalue; else - if_agc = if_agc_raw; - - *strength = (u8)(55 - if_agc / 182); - *strength |= *strength << 8; + *strength = 0; return 0; -err: - dev_dbg(&client->dev, "failed=%d\n", ret); - return ret; } static struct dvb_frontend_ops rtl2830_ops = { |