diff options
Diffstat (limited to 'drivers/media/dvb/ttusb-dec/ttusbdecfe.c')
| -rw-r--r-- | drivers/media/dvb/ttusb-dec/ttusbdecfe.c | 53 |
1 files changed, 48 insertions, 5 deletions
diff --git a/drivers/media/dvb/ttusb-dec/ttusbdecfe.c b/drivers/media/dvb/ttusb-dec/ttusbdecfe.c index 725af3af5b27..a5a46175fa09 100644 --- a/drivers/media/dvb/ttusb-dec/ttusbdecfe.c +++ b/drivers/media/dvb/ttusb-dec/ttusbdecfe.c @@ -42,8 +42,39 @@ struct ttusbdecfe_state { static int ttusbdecfe_read_status(struct dvb_frontend* fe, fe_status_t* status) { - *status = FE_HAS_SIGNAL | FE_HAS_VITERBI | - FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK; + struct ttusbdecfe_state* state = fe->demodulator_priv; + u8 b[] = { 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 }; + u8 result[4]; + int len, ret; + + *status=0; + + ret=state->config->send_command(fe, 0x73, sizeof(b), b, &len, result); + if(ret) + return ret; + + if(len != 4) { + printk(KERN_ERR "%s: unexpected reply\n", __FUNCTION__); + return -EIO; + } + + switch(result[3]) { + case 1: /* not tuned yet */ + case 2: /* no signal/no lock*/ + break; + case 3: /* signal found and locked*/ + *status = FE_HAS_SIGNAL | FE_HAS_VITERBI | + FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK; + break; + case 4: + *status = FE_TIMEDOUT; + break; + default: + pr_info("%s: returned unknown value: %d\n", + __FUNCTION__, result[3]); + return -EIO; + } return 0; } @@ -64,6 +95,16 @@ static int ttusbdecfe_dvbt_set_frontend(struct dvb_frontend* fe, struct dvb_fron return 0; } +static int ttusbdecfe_dvbt_get_tune_settings(struct dvb_frontend* fe, + struct dvb_frontend_tune_settings* fesettings) +{ + fesettings->min_delay_ms = 1500; + /* Drift compensation makes no sense for DVB-T */ + fesettings->step_size = 0; + fesettings->max_drift = 0; + return 0; +} + static int ttusbdecfe_dvbs_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) { struct ttusbdecfe_state* state = (struct ttusbdecfe_state*) fe->demodulator_priv; @@ -212,6 +253,8 @@ static struct dvb_frontend_ops ttusbdecfe_dvbt_ops = { .set_frontend = ttusbdecfe_dvbt_set_frontend, + .get_tune_settings = ttusbdecfe_dvbt_get_tune_settings, + .read_status = ttusbdecfe_read_status, }; @@ -223,11 +266,11 @@ static struct dvb_frontend_ops ttusbdecfe_dvbs_ops = { .frequency_min = 950000, .frequency_max = 2150000, .frequency_stepsize = 125, + .symbol_rate_min = 1000000, /* guessed */ + .symbol_rate_max = 45000000, /* guessed */ .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | - FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | - FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | - FE_CAN_HIERARCHY_AUTO, + FE_CAN_QPSK }, .release = ttusbdecfe_release, |