diff options
Diffstat (limited to 'drivers/media/dvb/frontends')
| -rw-r--r-- | drivers/media/dvb/frontends/ds3000.c | 108 |
1 files changed, 13 insertions, 95 deletions
diff --git a/drivers/media/dvb/frontends/ds3000.c b/drivers/media/dvb/frontends/ds3000.c index 882be672f5d2..13f9193d4f4a 100644 --- a/drivers/media/dvb/frontends/ds3000.c +++ b/drivers/media/dvb/frontends/ds3000.c @@ -229,31 +229,11 @@ static u8 ds3000_dvbs2_init_tab[] = { 0xb8, 0x00, }; -/* DS3000 doesn't need some parameters as input and auto-detects them */ -/* save input from the application of those parameters */ -struct ds3000_tuning { - u32 frequency; - u32 symbol_rate; - fe_spectral_inversion_t inversion; - enum fe_code_rate fec; - - /* input values */ - u8 inversion_val; - fe_modulation_t delivery; - u8 rolloff; -}; - struct ds3000_state { struct i2c_adapter *i2c; const struct ds3000_config *config; - struct dvb_frontend frontend; - - struct ds3000_tuning dcur; - struct ds3000_tuning dnxt; - u8 skip_fw_load; - /* previous uncorrected block counter for DVB-S2 */ u16 prevUCBS2; }; @@ -401,45 +381,6 @@ static int ds3000_tuner_readreg(struct ds3000_state *state, u8 reg) return b1[0]; } -static int ds3000_set_inversion(struct ds3000_state *state, - fe_spectral_inversion_t inversion) -{ - dprintk("%s(%d)\n", __func__, inversion); - - switch (inversion) { - case INVERSION_OFF: - case INVERSION_ON: - case INVERSION_AUTO: - break; - default: - return -EINVAL; - } - - state->dnxt.inversion = inversion; - - return 0; -} - -static int ds3000_set_symbolrate(struct ds3000_state *state, u32 rate) -{ - int ret = 0; - - dprintk("%s()\n", __func__); - - dprintk("%s() symbol_rate = %d\n", __func__, state->dnxt.symbol_rate); - - /* check if symbol rate is within limits */ - if ((state->dnxt.symbol_rate > - state->frontend.ops.info.symbol_rate_max) || - (state->dnxt.symbol_rate < - state->frontend.ops.info.symbol_rate_min)) - ret = -EOPNOTSUPP; - - state->dnxt.symbol_rate = rate; - - return ret; -} - static int ds3000_load_firmware(struct dvb_frontend *fe, const struct firmware *fw); @@ -790,13 +731,6 @@ static int ds3000_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) return 0; } -/* Overwrite the current tuning params, we are about to tune */ -static void ds3000_clone_params(struct dvb_frontend *fe) -{ - struct ds3000_state *state = fe->demodulator_priv; - memcpy(&state->dcur, &state->dnxt, sizeof(state->dcur)); -} - static int ds3000_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone) { struct ds3000_state *state = fe->demodulator_priv; @@ -1027,22 +961,6 @@ static int ds3000_tune(struct dvb_frontend *fe, dprintk("%s() ", __func__); - state->dnxt.delivery = c->modulation; - state->dnxt.frequency = c->frequency; - state->dnxt.rolloff = 2; /* fixme */ - state->dnxt.fec = c->fec_inner; - - ret = ds3000_set_inversion(state, p->inversion); - if (ret != 0) - return ret; - - ret = ds3000_set_symbolrate(state, c->symbol_rate); - if (ret != 0) - return ret; - - /* discard the 'current' tuning parameters and prepare to tune */ - ds3000_clone_params(fe); - /* Reset status register */ status = 0; /* Tune */ @@ -1053,14 +971,14 @@ static int ds3000_tune(struct dvb_frontend *fe, ds3000_tuner_writereg(state, 0x08, 0x01); ds3000_tuner_writereg(state, 0x00, 0x01); /* calculate and set freq divider */ - if (state->dcur.frequency < 1146000) { + if (p->frequency < 1146000) { ds3000_tuner_writereg(state, 0x10, 0x11); - ndiv = ((state->dcur.frequency * (6 + 8) * 4) + + ndiv = ((p->frequency * (6 + 8) * 4) + (DS3000_XTAL_FREQ / 2)) / DS3000_XTAL_FREQ - 1024; } else { ds3000_tuner_writereg(state, 0x10, 0x01); - ndiv = ((state->dcur.frequency * (6 + 8) * 2) + + ndiv = ((p->frequency * (6 + 8) * 2) + (DS3000_XTAL_FREQ / 2)) / DS3000_XTAL_FREQ - 1024; } @@ -1106,8 +1024,8 @@ static int ds3000_tune(struct dvb_frontend *fe, ds3000_tuner_writereg(state, 0x50, 0x00); msleep(5); - f3db = ((state->dcur.symbol_rate / 1000) << 2) / 5 + 2000; - if ((state->dcur.symbol_rate / 1000) < 5000) + f3db = ((c->symbol_rate / 1000) << 2) / 5 + 2000; + if ((c->symbol_rate / 1000) < 5000) f3db += 3000; if (f3db < 7000) f3db = 7000; @@ -1196,30 +1114,30 @@ static int ds3000_tune(struct dvb_frontend *fe, ds3000_writereg(state, 0x25, 0x8a); /* enhance symbol rate performance */ - if ((state->dcur.symbol_rate / 1000) <= 5000) { - value = 29777 / (state->dcur.symbol_rate / 1000) + 1; + if ((c->symbol_rate / 1000) <= 5000) { + value = 29777 / (c->symbol_rate / 1000) + 1; if (value % 2 != 0) value++; ds3000_writereg(state, 0xc3, 0x0d); ds3000_writereg(state, 0xc8, value); ds3000_writereg(state, 0xc4, 0x10); ds3000_writereg(state, 0xc7, 0x0e); - } else if ((state->dcur.symbol_rate / 1000) <= 10000) { - value = 92166 / (state->dcur.symbol_rate / 1000) + 1; + } else if ((c->symbol_rate / 1000) <= 10000) { + value = 92166 / (c->symbol_rate / 1000) + 1; if (value % 2 != 0) value++; ds3000_writereg(state, 0xc3, 0x07); ds3000_writereg(state, 0xc8, value); ds3000_writereg(state, 0xc4, 0x09); ds3000_writereg(state, 0xc7, 0x12); - } else if ((state->dcur.symbol_rate / 1000) <= 20000) { - value = 64516 / (state->dcur.symbol_rate / 1000) + 1; + } else if ((c->symbol_rate / 1000) <= 20000) { + value = 64516 / (c->symbol_rate / 1000) + 1; ds3000_writereg(state, 0xc3, value); ds3000_writereg(state, 0xc8, 0x0e); ds3000_writereg(state, 0xc4, 0x07); ds3000_writereg(state, 0xc7, 0x18); } else { - value = 129032 / (state->dcur.symbol_rate / 1000) + 1; + value = 129032 / (c->symbol_rate / 1000) + 1; ds3000_writereg(state, 0xc3, value); ds3000_writereg(state, 0xc8, 0x0a); ds3000_writereg(state, 0xc4, 0x05); @@ -1227,7 +1145,7 @@ static int ds3000_tune(struct dvb_frontend *fe, } /* normalized symbol rate rounded to the closest integer */ - value = (((state->dcur.symbol_rate / 1000) << 16) + + value = (((c->symbol_rate / 1000) << 16) + (DS3000_SAMPLE_RATE / 2)) / DS3000_SAMPLE_RATE; ds3000_writereg(state, 0x61, value & 0x00ff); ds3000_writereg(state, 0x62, (value & 0xff00) >> 8); |
