diff options
Diffstat (limited to 'drivers/media/dvb-frontends/stv0367.c')
| -rw-r--r-- | drivers/media/dvb-frontends/stv0367.c | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/stv0367.c b/drivers/media/dvb-frontends/stv0367.c index ffc046a4faec..e726c2e00460 100644 --- a/drivers/media/dvb-frontends/stv0367.c +++ b/drivers/media/dvb-frontends/stv0367.c @@ -46,6 +46,8 @@ module_param_named(i2c_debug, i2cdebug, int, 0644); } while (0) /* DVB-C */ +enum active_demod_state { demod_none, demod_ter, demod_cab }; + struct stv0367cab_state { enum stv0367_cab_signal_type state; u32 mclk; @@ -96,6 +98,7 @@ struct stv0367_state { u8 deftabs; u8 reinit_on_setfrontend; u8 auto_if_khz; + enum active_demod_state activedemod; }; #define RF_LOOKUP_TABLE_SIZE 31 @@ -2880,6 +2883,327 @@ error: } EXPORT_SYMBOL(stv0367cab_attach); +/* + * Functions for operation on Digital Devices hardware + */ + +static void stv0367ddb_setup_ter(struct stv0367_state *state) +{ + stv0367_writereg(state, R367TER_DEBUG_LT4, 0x00); + stv0367_writereg(state, R367TER_DEBUG_LT5, 0x00); + stv0367_writereg(state, R367TER_DEBUG_LT6, 0x00); /* R367CAB_CTRL_1 */ + stv0367_writereg(state, R367TER_DEBUG_LT7, 0x00); /* R367CAB_CTRL_2 */ + stv0367_writereg(state, R367TER_DEBUG_LT8, 0x00); + stv0367_writereg(state, R367TER_DEBUG_LT9, 0x00); + + /* Tuner Setup */ + /* Buffer Q disabled, I Enabled, unsigned ADC */ + stv0367_writereg(state, R367TER_ANADIGCTRL, 0x89); + stv0367_writereg(state, R367TER_DUAL_AD12, 0x04); /* ADCQ disabled */ + + /* Clock setup */ + /* PLL bypassed and disabled */ + stv0367_writereg(state, R367TER_ANACTRL, 0x0D); + stv0367_writereg(state, R367TER_TOPCTRL, 0x00); /* Set OFDM */ + + /* IC runs at 54 MHz with a 27 MHz crystal */ + stv0367_pll_setup(state, STV0367_ICSPEED_53125, state->config->xtal); + + msleep(50); + /* PLL enabled and used */ + stv0367_writereg(state, R367TER_ANACTRL, 0x00); + + state->activedemod = demod_ter; +} + +static void stv0367ddb_setup_cab(struct stv0367_state *state) +{ + stv0367_writereg(state, R367TER_DEBUG_LT4, 0x00); + stv0367_writereg(state, R367TER_DEBUG_LT5, 0x01); + stv0367_writereg(state, R367TER_DEBUG_LT6, 0x06); /* R367CAB_CTRL_1 */ + stv0367_writereg(state, R367TER_DEBUG_LT7, 0x03); /* R367CAB_CTRL_2 */ + stv0367_writereg(state, R367TER_DEBUG_LT8, 0x00); + stv0367_writereg(state, R367TER_DEBUG_LT9, 0x00); + + /* Tuner Setup */ + /* Buffer Q disabled, I Enabled, signed ADC */ + stv0367_writereg(state, R367TER_ANADIGCTRL, 0x8B); + /* ADCQ disabled */ + stv0367_writereg(state, R367TER_DUAL_AD12, 0x04); + + /* Clock setup */ + /* PLL bypassed and disabled */ + stv0367_writereg(state, R367TER_ANACTRL, 0x0D); + /* Set QAM */ + stv0367_writereg(state, R367TER_TOPCTRL, 0x10); + + /* IC runs at 58 MHz with a 27 MHz crystal */ + stv0367_pll_setup(state, STV0367_ICSPEED_58000, state->config->xtal); + + msleep(50); + /* PLL enabled and used */ + stv0367_writereg(state, R367TER_ANACTRL, 0x00); + + state->cab_state->mclk = stv0367cab_get_mclk(&state->fe, + state->config->xtal); + state->cab_state->adc_clk = stv0367cab_get_adc_freq(&state->fe, + state->config->xtal); + + state->activedemod = demod_cab; +} + +static int stv0367ddb_set_frontend(struct dvb_frontend *fe) +{ + struct stv0367_state *state = fe->demodulator_priv; + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + if (state->activedemod != demod_ter) + stv0367ddb_setup_ter(state); + + return stv0367ter_set_frontend(fe); + case SYS_DVBC_ANNEX_A: + if (state->activedemod != demod_cab) + stv0367ddb_setup_cab(state); + + /* protect against division error oopses */ + if (fe->dtv_property_cache.symbol_rate == 0) { + printk(KERN_ERR "Invalid symbol rate\n"); + return -EINVAL; + } + + return stv0367cab_set_frontend(fe); + default: + break; + } + + return -EINVAL; +} + +static int stv0367ddb_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + struct stv0367_state *state = fe->demodulator_priv; + + switch (state->activedemod) { + case demod_ter: + return stv0367ter_read_status(fe, status); + case demod_cab: + return stv0367cab_read_status(fe, status); + default: + break; + } + + return -EINVAL; +} + +static int stv0367ddb_get_frontend(struct dvb_frontend *fe, + struct dtv_frontend_properties *p) +{ + struct stv0367_state *state = fe->demodulator_priv; + + switch (state->activedemod) { + case demod_ter: + return stv0367ter_get_frontend(fe, p); + case demod_cab: + return stv0367cab_get_frontend(fe, p); + default: + break; + } + + return -EINVAL; +} + +static int stv0367ddb_sleep(struct dvb_frontend *fe) +{ + struct stv0367_state *state = fe->demodulator_priv; + + switch (state->activedemod) { + case demod_ter: + state->activedemod = demod_none; + return stv0367ter_sleep(fe); + case demod_cab: + state->activedemod = demod_none; + return stv0367cab_sleep(fe); + default: + break; + } + + return -EINVAL; +} + +static int stv0367ddb_init(struct stv0367_state *state) +{ + struct stv0367ter_state *ter_state = state->ter_state; + + stv0367_writereg(state, R367TER_TOPCTRL, 0x10); + + if (stv0367_deftabs[state->deftabs][STV0367_TAB_BASE]) + stv0367_write_table(state, + stv0367_deftabs[state->deftabs][STV0367_TAB_BASE]); + + stv0367_write_table(state, + stv0367_deftabs[state->deftabs][STV0367_TAB_CAB]); + + stv0367_writereg(state, R367TER_TOPCTRL, 0x00); + stv0367_write_table(state, + stv0367_deftabs[state->deftabs][STV0367_TAB_TER]); + + stv0367_writereg(state, R367TER_GAIN_SRC1, 0x2A); + stv0367_writereg(state, R367TER_GAIN_SRC2, 0xD6); + stv0367_writereg(state, R367TER_INC_DEROT1, 0x55); + stv0367_writereg(state, R367TER_INC_DEROT2, 0x55); + stv0367_writereg(state, R367TER_TRL_CTL, 0x14); + stv0367_writereg(state, R367TER_TRL_NOMRATE1, 0xAE); + stv0367_writereg(state, R367TER_TRL_NOMRATE2, 0x56); + stv0367_writereg(state, R367TER_FEPATH_CFG, 0x0); + + /* OFDM TS Setup */ + + stv0367_writereg(state, R367TER_TSCFGH, 0x70); + stv0367_writereg(state, R367TER_TSCFGM, 0xC0); + stv0367_writereg(state, R367TER_TSCFGL, 0x20); + stv0367_writereg(state, R367TER_TSSPEED, 0x40); /* Fixed at 54 MHz */ + + stv0367_writereg(state, R367TER_TSCFGH, 0x71); + stv0367_writereg(state, R367TER_TSCFGH, 0x70); + + stv0367_writereg(state, R367TER_TOPCTRL, 0x10); + + /* Also needed for QAM */ + stv0367_writereg(state, R367TER_AGC12C, 0x01); /* AGC Pin setup */ + + stv0367_writereg(state, R367TER_AGCCTRL1, 0x8A); + + /* QAM TS setup, note exact format also depends on descrambler */ + /* settings */ + /* Inverted Clock, Swap, serial */ + stv0367_writereg(state, R367CAB_OUTFORMAT_0, 0x85); + + /* Clock setup (PLL bypassed and disabled) */ + stv0367_writereg(state, R367TER_ANACTRL, 0x0D); + + /* IC runs at 58 MHz with a 27 MHz crystal */ + stv0367_pll_setup(state, STV0367_ICSPEED_58000, state->config->xtal); + + /* Tuner setup */ + /* Buffer Q disabled, I Enabled, signed ADC */ + stv0367_writereg(state, R367TER_ANADIGCTRL, 0x8b); + stv0367_writereg(state, R367TER_DUAL_AD12, 0x04); /* ADCQ disabled */ + + /* Improves the C/N lock limit */ + stv0367_writereg(state, R367CAB_FSM_SNR2_HTH, 0x23); + /* ZIF/IF Automatic mode */ + stv0367_writereg(state, R367CAB_IQ_QAM, 0x01); + /* Improving burst noise performances */ + stv0367_writereg(state, R367CAB_EQU_FFE_LEAKAGE, 0x83); + /* Improving ACI performances */ + stv0367_writereg(state, R367CAB_IQDEM_ADJ_EN, 0x05); + + /* PLL enabled and used */ + stv0367_writereg(state, R367TER_ANACTRL, 0x00); + + stv0367_writereg(state, R367TER_I2CRPT, (0x08 | ((5 & 0x07) << 4))); + + ter_state->pBER = 0; + ter_state->first_lock = 0; + ter_state->unlock_counter = 2; + + return 0; +} + +static const struct dvb_frontend_ops stv0367ddb_ops = { + .delsys = { SYS_DVBC_ANNEX_A, SYS_DVBT }, + .info = { + .name = "ST STV0367 DDB DVB-C/T", + .frequency_min = 47000000, + .frequency_max = 865000000, + .frequency_stepsize = 166667, + .frequency_tolerance = 0, + .symbol_rate_min = 870000, + .symbol_rate_max = 11700000, + .caps = /* DVB-C */ + 0x400 |/* FE_CAN_QAM_4 */ + FE_CAN_QAM_16 | FE_CAN_QAM_32 | + FE_CAN_QAM_64 | FE_CAN_QAM_128 | + FE_CAN_QAM_256 | FE_CAN_FEC_AUTO | + /* DVB-T */ + 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_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | + FE_CAN_QAM_128 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_RECOVER | + FE_CAN_INVERSION_AUTO | + FE_CAN_MUTE_TS + }, + .release = stv0367_release, + .sleep = stv0367ddb_sleep, + .i2c_gate_ctrl = stv0367cab_gate_ctrl, /* valid for TER and CAB */ + .set_frontend = stv0367ddb_set_frontend, + .get_frontend = stv0367ddb_get_frontend, + .get_tune_settings = stv0367_get_tune_settings, + .read_status = stv0367ddb_read_status, +}; + +struct dvb_frontend *stv0367ddb_attach(const struct stv0367_config *config, + struct i2c_adapter *i2c) +{ + struct stv0367_state *state = NULL; + struct stv0367ter_state *ter_state = NULL; + struct stv0367cab_state *cab_state = NULL; + + /* allocate memory for the internal state */ + state = kzalloc(sizeof(struct stv0367_state), GFP_KERNEL); + if (state == NULL) + goto error; + ter_state = kzalloc(sizeof(struct stv0367ter_state), GFP_KERNEL); + if (ter_state == NULL) + goto error; + cab_state = kzalloc(sizeof(struct stv0367cab_state), GFP_KERNEL); + if (cab_state == NULL) + goto error; + + /* setup the state */ + state->i2c = i2c; + state->config = config; + state->ter_state = ter_state; + cab_state->search_range = 280000; + cab_state->qamfec_status_reg = F367CAB_DESCR_SYNCSTATE; + state->cab_state = cab_state; + state->fe.ops = stv0367ddb_ops; + state->fe.demodulator_priv = state; + state->chip_id = stv0367_readreg(state, R367TER_ID); + + /* demod operation options */ + state->use_i2c_gatectrl = 0; + state->deftabs = STV0367_DEFTAB_DDB; + state->reinit_on_setfrontend = 0; + state->auto_if_khz = 1; + state->activedemod = demod_none; + + dprintk("%s: chip_id = 0x%x\n", __func__, state->chip_id); + + /* check if the demod is there */ + if ((state->chip_id != 0x50) && (state->chip_id != 0x60)) + goto error; + + dev_info(&i2c->dev, "Found %s with ChipID %02X at adr %02X\n", + state->fe.ops.info.name, state->chip_id, + config->demod_address); + + stv0367ddb_init(state); + + return &state->fe; + +error: + kfree(cab_state); + kfree(ter_state); + kfree(state); + return NULL; +} +EXPORT_SYMBOL(stv0367ddb_attach); + MODULE_PARM_DESC(debug, "Set debug"); MODULE_PARM_DESC(i2c_debug, "Set i2c debug"); |