diff options
| author | Benjamin Larsson <benjamin@southpole.se> | 2015-03-21 07:18:07 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-02 21:55:34 -0300 |
| commit | 0aa83bb1814e64bfc744abb6bae85e264edee4ef (patch) | |
| tree | 3e6fa2e101138221fb364295870c2d5f9df4ad3a | |
| parent | d73ab406137fb137f1ac56ed43cfb8a151179940 (diff) | |
| download | linux-0aa83bb1814e64bfc744abb6bae85e264edee4ef.tar.bz2 | |
[media] mn88473: implement lock for all delivery systems
Add capability to check if digital TV has lock for all delivery
systems.
Signed-off-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| -rw-r--r-- | drivers/staging/media/mn88473/mn88473.c | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/drivers/staging/media/mn88473/mn88473.c b/drivers/staging/media/mn88473/mn88473.c index f98b982398bc..e909d62a086a 100644 --- a/drivers/staging/media/mn88473/mn88473.c +++ b/drivers/staging/media/mn88473/mn88473.c @@ -167,7 +167,10 @@ static int mn88473_read_status(struct dvb_frontend *fe, fe_status_t *status) { struct i2c_client *client = fe->demodulator_priv; struct mn88473_dev *dev = i2c_get_clientdata(client); + struct dtv_frontend_properties *c = &fe->dtv_property_cache; int ret; + unsigned int utmp; + int lock = 0; *status = 0; @@ -176,8 +179,51 @@ static int mn88473_read_status(struct dvb_frontend *fe, fe_status_t *status) goto err; } - *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | - FE_HAS_SYNC | FE_HAS_LOCK; + switch (c->delivery_system) { + case SYS_DVBT: + ret = regmap_read(dev->regmap[0], 0x62, &utmp); + if (ret) + goto err; + if (!(utmp & 0xA0)) { + if ((utmp & 0xF) >= 0x03) + *status |= FE_HAS_SIGNAL; + if ((utmp & 0xF) >= 0x09) + lock = 1; + } + break; + case SYS_DVBT2: + ret = regmap_read(dev->regmap[2], 0x8B, &utmp); + if (ret) + goto err; + if (!(utmp & 0x40)) { + if ((utmp & 0xF) >= 0x07) + *status |= FE_HAS_SIGNAL; + if ((utmp & 0xF) >= 0x0a) + *status |= FE_HAS_CARRIER; + if ((utmp & 0xF) >= 0x0d) + *status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; + } + break; + case SYS_DVBC_ANNEX_A: + ret = regmap_read(dev->regmap[1], 0x85, &utmp); + if (ret) + goto err; + if (!(utmp & 0x40)) { + ret = regmap_read(dev->regmap[1], 0x89, &utmp); + if (ret) + goto err; + if (utmp & 0x01) + lock = 1; + } + break; + default: + ret = -EINVAL; + goto err; + } + + if (lock) + *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | + FE_HAS_SYNC | FE_HAS_LOCK; return 0; err: |