| /* |
| * Frontend driver for mobile DVB-T demodulator DiBcom 3000M-B |
| * DiBcom (http://www.dibcom.fr/) |
| * |
| * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de) |
| * |
| * based on GPL code from DibCom, which has |
| * |
| * Copyright (C) 2004 Amaury Demol for DiBcom (ademol@dibcom.fr) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation, version 2. |
| * |
| * Acknowledgements |
| * |
| * Amaury Demol (ademol@dibcom.fr) from DiBcom for providing specs and driver |
| * sources, on which this driver (and the dvb-dibusb) are based. |
| * |
| * see Documentation/dvb/README.dibusb for more information |
| * |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/string.h> |
| #include <linux/slab.h> |
| |
| #include "dvb_frontend.h" |
| |
| #include "dib3000.h" |
| #include "dib3000mb_priv.h" |
| |
| /* Version information */ |
| #define DRIVER_VERSION "0.1" |
| #define DRIVER_DESC "DiBcom 3000M-B DVB-T demodulator" |
| #define DRIVER_AUTHOR "Patrick Boettcher, patrick.boettcher@desy.de" |
| |
| static int debug; |
| module_param(debug, int, 0644); |
| MODULE_PARM_DESC(debug, "set debugging level (1=info,2=xfer,4=setfe,8=getfe (|-able))."); |
| |
| #define deb_info(args...) dprintk(0x01,args) |
| #define deb_i2c(args...) dprintk(0x02,args) |
| #define deb_srch(args...) dprintk(0x04,args) |
| #define deb_info(args...) dprintk(0x01,args) |
| #define deb_xfer(args...) dprintk(0x02,args) |
| #define deb_setf(args...) dprintk(0x04,args) |
| #define deb_getf(args...) dprintk(0x08,args) |
| |
| static int dib3000_read_reg(struct dib3000_state *state, u16 reg) |
| { |
| u8 wb[] = { ((reg >> 8) | 0x80) & 0xff, reg & 0xff }; |
| u8 rb[2]; |
| struct i2c_msg msg[] = { |
| { .addr = state->config.demod_address, .flags = 0, .buf = wb, .len = 2 }, |
| { .addr = state->config.demod_address, .flags = I2C_M_RD, .buf = rb, .len = 2 }, |
| }; |
| |
| if (i2c_transfer(state->i2c, msg, 2) != 2) |
| deb_i2c("i2c read error\n"); |
| |
| deb_i2c("reading i2c bus (reg: %5d 0x%04x, val: %5d 0x%04x)\n",reg,reg, |
| (rb[0] << 8) | rb[1],(rb[0] << 8) | rb[1]); |
| |
| return (rb[0] << 8) | rb[1]; |
| } |
| |
| static int dib3000_write_reg(struct dib3000_state *state, u16 reg, u16 val) |
| { |
| u8 b[] = { |
| (reg >> 8) & 0xff, reg & 0xff, |
| (val >> 8) & 0xff, val & 0xff, |
| }; |
| struct i2c_msg msg[] = { |
| { .addr = state->config.demod_address, .flags = 0, .buf = b, .len = 4 } |
| }; |
| deb_i2c("writing i2c bus (reg: %5d 0x%04x, val: %5d 0x%04x)\n",reg,reg,val,val); |
| |
| return i2c_transfer(state->i2c,msg, 1) != 1 ? -EREMOTEIO : 0; |
| } |
| |
| static int dib3000_search_status(u16 irq,u16 lock) |
| { |
| if (irq & 0x02) { |
| if (lock & 0x01) { |
| deb_srch("auto search succeeded\n"); |
| return 1; // auto search succeeded |
| } else { |
| deb_srch("auto search not successful\n"); |
| return 0; // auto search failed |
| } |
| } else if (irq & 0x01) { |
| deb_srch("auto search failed\n"); |
| return 0; // auto search failed |
| } |
| return -1; // try again |
| } |
| |
| /* for auto search */ |
| static u16 dib3000_seq[2][2][2] = /* fft,gua, inv */ |
| { /* fft */ |
| { /* gua */ |
| { 0, 1 }, /* 0 0 { 0,1 } */ |
| { 3, 9 }, /* 0 1 { 0,1 } */ |
| }, |
| { |
| { 2, 5 }, /* 1 0 { 0,1 } */ |
| { 6, 11 }, /* 1 1 { 0,1 } */ |
| } |
| }; |
| |
| static int dib3000mb_get_frontend(struct dvb_frontend* fe, |
| struct dvb_frontend_parameters *fep); |
| |
| static int dib3000mb_set_frontend(struct dvb_frontend* fe, |
| struct dvb_frontend_parameters *fep, int tuner) |
| { |
| struct dib3000_state* state = fe->demodulator_priv; |
| struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm; |
| fe_code_rate_t fe_cr = FEC_NONE; |
| int search_state, seq; |
| |
| if (tuner && fe->ops.tuner_ops.set_params) { |
| fe->ops.tuner_ops.set_params(fe, fep); |
| if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); |
| |
| deb_setf("bandwidth: "); |
| switch (ofdm->bandwidth) { |
| case BANDWIDTH_8_MHZ: |
| deb_setf("8 MHz\n"); |
| wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[2]); |
| wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_8mhz); |
| break; |
| case BANDWIDTH_7_MHZ: |
| deb_setf("7 MHz\n"); |
| wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[1]); |
| wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_7mhz); |
| break; |
| case BANDWIDTH_6_MHZ: |
| deb_setf("6 MHz\n"); |
| wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[0]); |
| wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_6mhz); |
| break; |
| case BANDWIDTH_AUTO: |
| return -EOPNOTSUPP; |
| default: |
| err("unknown bandwidth value."); |
| return -EINVAL; |
| } |
| } |
| wr(DIB3000MB_REG_LOCK1_MASK, DIB3000MB_LOCK1_SEARCH_4); |
| |
| deb_setf("transmission mode: "); |
| switch (ofdm->transmission_mode) { |
| case TRANSMISSION_MODE_2K: |
| deb_setf("2k\n"); |
| wr(DIB3000MB_REG_FFT, DIB3000_TRANSMISSION_MODE_2K); |
| break; |
| case TRANSMISSION_MODE_8K: |
| deb_setf("8k\n"); |
| wr(DIB3000MB_REG_FFT, DIB3000_TRANSMISSION_MODE_8K); |
| break; |
| case TRANSMISSION_MODE_AUTO: |
| deb_setf("auto\n"); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| deb_setf("guard: "); |
| switch (ofdm->guard_interval) { |
| case GUARD_INTERVAL_1_32: |
| deb_setf("1_32\n"); |
| wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_32); |
| break; |
| case GUARD_INTERVAL_1_16: |
| deb_setf("1_16\n"); |
| wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_16); |
| break; |
| case GUARD_INTERVAL_1_8: |
| deb_setf("1_8\n"); |
| wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_8); |
| break; |
| case GUARD_INTERVAL_1_4: |
| deb_setf("1_4\n"); |
| wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_4); |
| break; |
| case GUARD_INTERVAL_AUTO: |
| deb_setf("auto\n"); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| deb_setf("inversion: "); |
| switch (fep->inversion) { |
| case INVERSION_OFF: |
| deb_setf("off\n"); |
| wr(DIB3000MB_REG_DDS_INV, DIB3000_DDS_INVERSION_OFF); |
| break; |
| case INVERSION_AUTO: |
| deb_setf("auto "); |
| break; |
| case INVERSION_ON: |
| deb_setf("on\n"); |
| wr(DIB3000MB_REG_DDS_INV, DIB3000_DDS_INVERSION_ON); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| deb_setf("constellation: "); |
| switch (ofdm->constellation) { |
| case QPSK: |
| deb_setf("qpsk\n"); |
| wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_QPSK); |
| break; |
| case QAM_16: |
| deb_setf("qam16\n"); |
| wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_16QAM); |
| break; |
| case QAM_64: |
| deb_setf("qam64\n"); |
| wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_64QAM); |
| break; |
| case QAM_AUTO: |
| break; |
| default: |
| return -EINVAL; |
| } |
| deb_setf("hierarchy: "); |
| switch (ofdm->hierarchy_information) { |
| case HIERARCHY_NONE: |
| deb_setf("none "); |
| /* fall through */ |
| case HIERARCHY_1: |
| deb_setf("alpha=1\n"); |
| wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_1); |
| break; |
| case HIERARCHY_2: |
| deb_setf("alpha=2\n"); |
| wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_2); |
| break; |
| case HIERARCHY_4: |
| deb_setf("alpha=4\n"); |
| wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_4); |
| break; |
| case HIERARCHY_AUTO: |
| deb_setf("alpha=auto\n"); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| deb_setf("hierarchy: "); |
| if (ofdm->hierarchy_information == HIERARCHY_NONE) { |
| deb_setf("none\n"); |
| wr(DIB3000MB_REG_VIT_HRCH, DIB3000_HRCH_OFF); |
| wr(DIB3000MB_REG_VIT_HP, DIB3000_SELECT_HP); |
| fe_cr = ofdm->code_rate_HP; |
| } else if (ofdm->hierarchy_information != HIERARCHY_AUTO) { |
| deb_setf("on\n"); |
| wr(DIB3000MB_REG_VIT_HRCH, DIB3000_HRCH_ON); |
| wr(DIB3000MB_REG_VIT_HP, DIB3000_SELECT_LP); |
| fe_cr = ofdm->code_rate_LP; |
| } |
| deb_setf("fec: "); |
| switch (fe_cr) { |
| case FEC_1_2: |
| deb_setf("1_2\n"); |
| wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_1_2); |
| break; |
| case FEC_2_3: |
| deb_setf("2_3\n"); |
| wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_2_3); |
| break; |
| case FEC_3_4: |
| deb_setf("3_4\n"); |
| wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_3_4); |
| break; |
| case FEC_5_6: |
| deb_setf("5_6\n"); |
| wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_5_6); |
| break; |
| case FEC_7_8: |
| deb_setf("7_8\n"); |
| wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_7_8); |
| break; |
| case FEC_NONE: |
| deb_setf("none "); |
| break; |
| case FEC_AUTO: |
| deb_setf("auto\n"); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| seq = dib3000_seq |
| [ofdm->transmission_mode == TRANSMISSION_MODE_AUTO] |
| [ofdm->guard_interval == GUARD_INTERVAL_AUTO] |
| [fep->inversion == INVERSION_AUTO]; |
| |
| deb_setf("seq? %d\n", seq); |
| |
| wr(DIB3000MB_REG_SEQ, seq); |
| |
| wr(DIB3000MB_REG_ISI, seq ? DIB3000MB_ISI_INHIBIT : DIB3000MB_ISI_ACTIVATE); |
| |
| if (ofdm->transmission_mode == TRANSMISSION_MODE_2K) { |
| if (ofdm->guard_interval == GUARD_INTERVAL_1_8) { |
| wr(DIB3000MB_REG_SYNC_IMPROVEMENT, DIB3000MB_SYNC_IMPROVE_2K_1_8); |
| } else { |
| wr(DIB3000MB_REG_SYNC_IMPROVEMENT, DIB3000MB_SYNC_IMPROVE_DEFAULT); |
| } |
| |
| wr(DIB3000MB_REG_UNK_121, DIB3000MB_UNK_121_2K); |
| } else { |
| wr(DIB3000MB_REG_UNK_121, DIB3000MB_UNK_121_DEFAULT); |
| } |
| |
| wr(DIB3000MB_REG_MOBILE_ALGO, DIB3000MB_MOBILE_ALGO_OFF); |
| wr(DIB3000MB_REG_MOBILE_MODE_QAM, DIB3000MB_MOBILE_MODE_QAM_OFF); |
| wr(DIB3000MB_REG_MOBILE_MODE, DIB3000MB_MOBILE_MODE_OFF); |
| |
| wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_high); |
| |
| wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_ACTIVATE); |
| |
| wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AGC + DIB3000MB_RESTART_CTRL); |
| wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF); |
| |
| /* wait for AGC lock */ |
| msleep(70); |
| |
| wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_low); |
| |
| /* something has to be auto searched */ |
| if (ofdm->constellation == QAM_AUTO || |
| ofdm->hierarchy_information == HIERARCHY_AUTO || |
| fe_cr == FEC_AUTO || |
| fep->inversion == INVERSION_AUTO) { |
| int as_count=0; |
| |
| deb_setf("autosearch enabled.\n"); |
| |
| wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_INHIBIT); |
| |
| wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AUTO_SEARCH); |
| wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF); |
| |
| while ((search_state = |
| dib3000_search_status( |
| rd(DIB3000MB_REG_AS_IRQ_PENDING), |
| rd(DIB3000MB_REG_LOCK2_VALUE))) < 0 && as_count++ < 100) |
| msleep(1); |
| |
| deb_setf("search_state after autosearch %d after %d checks\n",search_state,as_count); |
| |
| if (search_state == 1) { |
| struct dvb_frontend_parameters feps; |
| if (dib3000mb_get_frontend(fe, &feps) == 0) { |
| deb_setf("reading tuning data from frontend succeeded.\n"); |
| return dib3000mb_set_frontend(fe, &feps, 0); |
| } |
| } |
| |
| } else { |
| wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_CTRL); |
| wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF); |
| } |
| |
| return 0; |
| } |
| |
| static int dib3000mb_fe_init(struct dvb_frontend* fe, int mobile_mode) |
| { |
| struct dib3000_state* state = fe->demodulator_priv; |
| |
| deb_info("dib3000mb is getting up.\n"); |
| wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_UP); |
| |
| wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AGC); |
| |
| wr(DIB3000MB_REG_RESET_DEVICE, DIB3000MB_RESET_DEVICE); |
| wr(DIB3000MB_REG_RESET_DEVICE, DIB3000MB_RESET_DEVICE_RST); |
| |
| wr(DIB3000MB_REG_CLOCK, DIB3000MB_CLOCK_DEFAULT); |
| |
| wr(DIB3000MB_REG_ELECT_OUT_MODE, DIB3000MB_ELECT_OUT_MODE_ON); |
| |
| wr(DIB3000MB_REG_DDS_FREQ_MSB, DIB3000MB_DDS_FREQ_MSB); |
| wr(DIB3000MB_REG_DDS_FREQ_LSB, DIB3000MB_DDS_FREQ_LSB); |
| |
| wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[2]); |
| |
| wr_foreach(dib3000mb_reg_impulse_noise, |
| dib3000mb_impulse_noise_values[DIB3000MB_IMPNOISE_OFF]); |
| |
| wr_foreach(dib3000mb_reg_agc_gain, dib3000mb_default_agc_gain); |
| |
| wr(DIB3000MB_REG_PHASE_NOISE, DIB3000MB_PHASE_NOISE_DEFAULT); |
| |
| wr_foreach(dib3000mb_reg_phase_noise, dib3000mb_default_noise_phase); |
| |
| wr_foreach(dib3000mb_reg_lock_duration, dib3000mb_default_lock_duration); |
| |
| wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_low); |
| |
| wr(DIB3000MB_REG_LOCK0_MASK, DIB3000MB_LOCK0_DEFAULT); |
| wr(DIB3000MB_REG_LOCK1_MASK, DIB3000MB_LOCK1_SEARCH_4); |
| wr(DIB3000MB_REG_LOCK2_MASK, DIB3000MB_LOCK2_DEFAULT); |
| wr(DIB3000MB_REG_SEQ, dib3000_seq[1][1][1]); |
| |
| wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_8mhz); |
| |
| wr(DIB3000MB_REG_UNK_68, DIB3000MB_UNK_68); |
| wr(DIB3000MB_REG_UNK_69, DIB3000MB_UNK_69); |
| wr(DIB3000MB_REG_UNK_71, DIB3000MB_UNK_71); |
| wr(DIB3000MB_REG_UNK_77, DIB3000MB_UNK_77); |
| wr(DIB3000MB_REG_UNK_78, DIB3000MB_UNK_78); |
| wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_INHIBIT); |
| wr(DIB3000MB_REG_UNK_92, DIB3000MB_UNK_92); |
| wr(DIB3000MB_REG_UNK_96, DIB3000MB_UNK_96); |
| wr(DIB3000MB_REG_UNK_97, DIB3000MB_UNK_97); |
| wr(DIB3000MB_REG_UNK_106, DIB3000MB_UNK_106); |
| wr(DIB3000MB_REG_UNK_107, DIB3000MB_UNK_107); |
| wr(DIB3000MB_REG_UNK_108, DIB3000MB_UNK_108); |
| wr(DIB3000MB_REG_UNK_122, DIB3000MB_UNK_122); |
| wr(DIB3000MB_REG_MOBILE_MODE_QAM, DIB3000MB_MOBILE_MODE_QAM_OFF); |
| wr(DIB3000MB_REG_BERLEN, DIB3000MB_BERLEN_DEFAULT); |
| |
| wr_foreach(dib3000mb_reg_filter_coeffs, dib3000mb_filter_coeffs); |
| |
| wr(DIB3000MB_REG_MOBILE_ALGO, DIB3000MB_MOBILE_ALGO_ON); |
| wr(DIB3000MB_REG_MULTI_DEMOD_MSB, DIB3000MB_MULTI_DEMOD_MSB); |
| wr(DIB3000MB_REG_MULTI_DEMOD_LSB, DIB3000MB_MULTI_DEMOD_LSB); |
| |
| wr(DIB3000MB_REG_OUTPUT_MODE, DIB3000MB_OUTPUT_MODE_SLAVE); |
| |
| wr(DIB3000MB_REG_FIFO_142, DIB3000MB_FIFO_142); |
| wr(DIB3000MB_REG_MPEG2_OUT_MODE, DIB3000MB_MPEG2_OUT_MODE_188); |
| wr(DIB3000MB_REG_PID_PARSE, DIB3000MB_PID_PARSE_ACTIVATE); |
| wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_INHIBIT); |
| wr(DIB3000MB_REG_FIFO_146, DIB3000MB_FIFO_146); |
| wr(DIB3000MB_REG_FIFO_147, DIB3000MB_FIFO_147); |
| |
| wr(DIB3000MB_REG_DATA_IN_DIVERSITY, DIB3000MB_DATA_DIVERSITY_IN_OFF); |
| |
| return 0; |
| } |
| |
| static int dib3000mb_get_frontend(struct dvb_frontend* fe, |
| struct dvb_frontend_parameters *fep) |
| { |
| struct dib3000_state* state = fe->demodulator_priv; |
| struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm; |
| fe_code_rate_t *cr; |
| u16 tps_val; |
| int inv_test1,inv_test2; |
| u32 dds_val, threshold = 0x800000; |
| |
| if (!rd(DIB3000MB_REG_TPS_LOCK)) |
| return 0; |
| |
| dds_val = ((rd(DIB3000MB_REG_DDS_VALUE_MSB) & 0xff) << 16) + rd(DIB3000MB_REG_DDS_VALUE_LSB); |
| deb_getf("DDS_VAL: %x %x %x",dds_val, rd(DIB3000MB_REG_DDS_VALUE_MSB), rd(DIB3000MB_REG_DDS_VALUE_LSB)); |
| if (dds_val < threshold) |
| inv_test1 = 0; |
| else if (dds_val == threshold) |
| inv_test1 = 1; |
| else |
| inv_test1 = 2; |
| |
| dds_val = ((rd(DIB3000MB_REG_DDS_FREQ_MSB) & 0xff) << 16) + rd(DIB3000MB_REG_DDS_FREQ_LSB); |
| deb_getf("DDS_FREQ: %x %x %x",dds_val, rd(DIB3000MB_REG_DDS_FREQ_MSB), rd(DIB3000MB_REG_DDS_FREQ_LSB)); |
| if (dds_val < threshold) |
| inv_test2 = 0; |
| else if (dds_val == threshold) |
| inv_test2 = 1; |
| else |
| inv_test2 = 2; |
| |
| fep->inversion = |
| ((inv_test2 == 2) && (inv_test1==1 || inv_test1==0)) || |
| ((inv_test2 == 0) && (inv_test1==1 || inv_test1==2)) ? |
| INVERSION_ON : INVERSION_OFF; |
| |
| deb_getf("inversion %d %d, %d\n", inv_test2, inv_test1, fep->inversion); |
| |
| switch ((tps_val = rd(DIB3000MB_REG_TPS_QAM))) { |
| case DIB3000_CONSTELLATION_QPSK: |
| deb_getf("QPSK "); |
| ofdm->constellation = QPSK; |
| break; |
| case DIB3000_CONSTELLATION_16QAM: |
| deb_getf("QAM16 "); |
| ofdm->constellation = QAM_16; |
| break; |
| case DIB3000_CONSTELLATION_64QAM: |
| deb_getf("QAM64 "); |
| ofdm->constellation = QAM_64; |
| break; |
| default: |
| err("Unexpected constellation returned by TPS (%d)", tps_val); |
| break; |
| } |
| deb_getf("TPS: %d\n", tps_val); |
| |
| if (rd(DIB3000MB_REG_TPS_HRCH)) { |
| deb_getf("HRCH ON\n"); |
| cr = &ofdm->code_rate_LP; |
| ofdm->code_rate_HP = FEC_NONE; |
| switch ((tps_val = rd(DIB3000MB_REG_TPS_VIT_ALPHA))) { |
| case DIB3000_ALPHA_0: |
| deb_getf("HIERARCHY_NONE "); |
| ofdm->hierarchy_information = HIERARCHY_NONE; |
| break; |
| case DIB3000_ALPHA_1: |
| deb_getf("HIERARCHY_1 "); |
| ofdm->hierarchy_information = HIERARCHY_1; |
| break; |
| case DIB3000_ALPHA_2: |
| deb_getf("HIERARCHY_2 "); |
| ofdm->hierarchy_information = HIERARCHY_2; |
| break; |
| case DIB3000_ALPHA_4: |
| deb_getf("HIERARCHY_4 "); |
| ofdm->hierarchy_information = HIERARCHY_4; |
| break; |
| default: |
| err("Unexpected ALPHA value returned by TPS (%d)", tps_val); |
| break; |
| } |
| deb_getf("TPS: %d\n", tps_val); |
| |
| tps_val = rd(DIB3000MB_REG_TPS_CODE_RATE_LP); |
| } else { |
| deb_getf("HRCH OFF\n"); |
| cr = &ofdm->code_rate_HP; |
| ofdm->code_rate_LP = FEC_NONE; |
| ofdm->hierarchy_information = HIERARCHY_NONE; |
| |
| tps_val = rd(DIB3000MB_REG_TPS_CODE_RATE_HP); |
| } |
| |
| switch (tps_val) { |
| case DIB3000_FEC_1_2: |
| deb_getf("FEC_1_2 "); |
| *cr = FEC_1_2; |
| break; |
| case DIB3000_FEC_2_3: |
| deb_getf("FEC_2_3 "); |
| *cr = FEC_2_3; |
| break; |
| case DIB3000_FEC_3_4: |
| deb_getf("FEC_3_4 "); |
| *cr = FEC_3_4; |
| break; |
| case DIB3000_FEC_5_6: |
| deb_getf("FEC_5_6 "); |
| *cr = FEC_4_5; |
| break; |
| case DIB3000_FEC_7_8: |
| deb_getf("FEC_7_8 "); |
| *cr = FEC_7_8; |
| break; |
| default: |
| err("Unexpected FEC returned by TPS (%d)", tps_val); |
| break; |
| } |
| deb_getf("TPS: %d\n",tps_val); |
| |
| switch ((tps_val = rd(DIB3000MB_REG_TPS_GUARD_TIME))) { |
| case DIB3000_GUARD_TIME_1_32: |
| deb_getf("GUARD_INTERVAL_1_32 "); |
| ofdm->guard_interval = GUARD_INTERVAL_1_32; |
| break; |
| case DIB3000_GUARD_TIME_1_16: |
| deb_getf("GUARD_INTERVAL_1_16 "); |
| ofdm->guard_interval = GUARD_INTERVAL_1_16; |
| break; |
| case DIB3000_GUARD_TIME_1_8: |
| deb_getf("GUARD_INTERVAL_1_8 "); |
| ofdm->guard_interval = GUARD_INTERVAL_1_8; |
| break; |
| case DIB3000_GUARD_TIME_1_4: |
| deb_getf("GUARD_INTERVAL_1_4 "); |
| ofdm->guard_interval = GUARD_INTERVAL_1_4; |
| break; |
| default: |
| err("Unexpected Guard Time returned by TPS (%d)", tps_val); |
| break; |
| } |
| deb_getf("TPS: %d\n", tps_val); |
| |
| switch ((tps_val = rd(DIB3000MB_REG_TPS_FFT))) { |
| case DIB3000_TRANSMISSION_MODE_2K: |
| deb_getf("TRANSMISSION_MODE_2K "); |
| ofdm->transmission_mode = TRANSMISSION_MODE_2K; |
| break; |
| case DIB3000_TRANSMISSION_MODE_8K: |
| deb_getf("TRANSMISSION_MODE_8K "); |
| ofdm->transmission_mode = TRANSMISSION_MODE_8K; |
| break; |
| default: |
| err("unexpected transmission mode return by TPS (%d)", tps_val); |
| break; |
| } |
| deb_getf("TPS: %d\n", tps_val); |
| |
| return 0; |
| } |
| |
| static int dib3000mb_read_status(struct dvb_frontend* fe, fe_status_t *stat) |
| { |
| struct dib3000_state* state = fe->demodulator_priv; |
| |
| *stat = 0; |
| |
| if (rd(DIB3000MB_REG_AGC_LOCK)) |
| *stat |= FE_HAS_SIGNAL; |
| if (rd(DIB3000MB_REG_CARRIER_LOCK)) |
| *stat |= FE_HAS_CARRIER; |
| if (rd(DIB3000MB_REG_VIT_LCK)) |
| *stat |= FE_HAS_VITERBI; |
| if (rd(DIB3000MB_REG_TS_SYNC_LOCK)) |
| *stat |= (FE_HAS_SYNC | FE_HAS_LOCK); |
| |
| deb_getf("actual status is %2x\n",*stat); |
| |
| deb_getf("autoval: tps: %d, qam: %d, hrch: %d, alpha: %d, hp: %d, lp: %d, guard: %d, fft: %d cell: %d\n", |
| rd(DIB3000MB_REG_TPS_LOCK), |
| rd(DIB3000MB_REG_TPS_QAM), |
| rd(DIB3000MB_REG_TPS_HRCH), |
| rd(DIB3000MB_REG_TPS_VIT_ALPHA), |
| rd(DIB3000MB_REG_TPS_CODE_RATE_HP), |
| rd(DIB3000MB_REG_TPS_CODE_RATE_LP), |
| rd(DIB3000MB_REG_TPS_GUARD_TIME), |
| rd(DIB3000MB_REG_TPS_FFT), |
| rd(DIB3000MB_REG_TPS_CELL_ID)); |
| |
| //*stat = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; |
| return 0; |
| } |
| |
| static int dib3000mb_read_ber(struct dvb_frontend* fe, u32 *ber) |
| { |
| struct dib3000_state* state = fe->demodulator_priv; |
| |
| *ber = ((rd(DIB3000MB_REG_BER_MSB) << 16) | rd(DIB3000MB_REG_BER_LSB)); |
| return 0; |
| } |
| |
| /* see dib3000-watch dvb-apps for exact calcuations of signal_strength and snr */ |
| static int dib3000mb_read_signal_strength(struct dvb_frontend* fe, u16 *strength) |
| { |
| struct dib3000_state* state = fe->demodulator_priv; |
| |
| *strength = rd(DIB3000MB_REG_SIGNAL_POWER) * 0xffff / 0x170; |
| return 0; |
| } |
| |
| static int dib3000mb_read_snr(struct dvb_frontend* fe, u16 *snr) |
| { |
| struct dib3000_state* state = fe->demodulator_priv; |
| short sigpow = rd(DIB3000MB_REG_SIGNAL_POWER); |
| int icipow = ((rd(DIB3000MB_REG_NOISE_POWER_MSB) & 0xff) << 16) | |
| rd(DIB3000MB_REG_NOISE_POWER_LSB); |
| *snr = (sigpow << 8) / ((icipow > 0) ? icipow : 1); |
| return 0; |
| } |
| |
| static int dib3000mb_read_unc_blocks(struct dvb_frontend* fe, u32 *unc) |
| { |
| struct dib3000_state* state = fe->demodulator_priv; |
| |
| *unc = rd(DIB3000MB_REG_PACKET_ERROR_RATE); |
| return 0; |
| } |
| |
| static int dib3000mb_sleep(struct dvb_frontend* fe) |
| { |
| struct dib3000_state* state = fe->demodulator_priv; |
| deb_info("dib3000mb is going to bed.\n"); |
| wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_DOWN); |
| return 0; |
| } |
| |
| static int dib3000mb_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune) |
| { |
| tune->min_delay_ms = 800; |
| return 0; |
| } |
| |
| static int dib3000mb_fe_init_nonmobile(struct dvb_frontend* fe) |
| { |
| return dib3000mb_fe_init(fe, 0); |
| } |
| |
| static int dib3000mb_set_frontend_and_tuner(struct dvb_frontend* fe, struct dvb_frontend_parameters *fep) |
| { |
| return dib3000mb_set_frontend(fe, fep, 1); |
| } |
| |
| static void dib3000mb_release(struct dvb_frontend* fe) |
| { |
| struct dib3000_state *state = fe->demodulator_priv; |
| kfree(state); |
| } |
| |
| /* pid filter and transfer stuff */ |
| static int dib3000mb_pid_control(struct dvb_frontend *fe,int index, int pid,int onoff) |
| { |
| struct dib3000_state *state = fe->demodulator_priv; |
| pid = (onoff ? pid | DIB3000_ACTIVATE_PID_FILTERING : 0); |
| wr(index+DIB3000MB_REG_FIRST_PID,pid); |
| return 0; |
| } |
| |
| static int dib3000mb_fifo_control(struct dvb_frontend *fe, int onoff) |
| { |
| struct dib3000_state *state = fe->demodulator_priv; |
| |
| deb_xfer("%s fifo\n",onoff ? "enabling" : "disabling"); |
| if (onoff) { |
| wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_ACTIVATE); |
| } else { |
| wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_INHIBIT); |
| } |
| return 0; |
| } |
| |
| static int dib3000mb_pid_parse(struct dvb_frontend *fe, int onoff) |
| { |
| struct dib3000_state *state = fe->demodulator_priv; |
| deb_xfer("%s pid parsing\n",onoff ? "enabling" : "disabling"); |
| wr(DIB3000MB_REG_PID_PARSE,onoff); |
| return 0; |
| } |
| |
| static int dib3000mb_tuner_pass_ctrl(struct dvb_frontend *fe, int onoff, u8 pll_addr) |
| { |
| struct dib3000_state *state = fe->demodulator_priv; |
| if (onoff) { |
| wr(DIB3000MB_REG_TUNER, DIB3000_TUNER_WRITE_ENABLE(pll_addr)); |
| } else { |
| wr(DIB3000MB_REG_TUNER, DIB3000_TUNER_WRITE_DISABLE(pll_addr)); |
| } |
| return 0; |
| } |
| |
| static struct dvb_frontend_ops dib3000mb_ops; |
| |
| struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config, |
| struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops) |
| { |
| struct dib3000_state* state = NULL; |
| |
| /* allocate memory for the internal state */ |
| state = kzalloc(sizeof(struct dib3000_state), GFP_KERNEL); |
| if (state == NULL) |
| goto error; |
| |
| /* setup the state */ |
| state->i2c = i2c; |
| memcpy(&state->config,config,sizeof(struct dib3000_config)); |
| |
| /* check for the correct demod */ |
| if (rd(DIB3000_REG_MANUFACTOR_ID) != DIB3000_I2C_ID_DIBCOM) |
| goto error; |
| |
| if (rd(DIB3000_REG_DEVICE_ID) != DIB3000MB_DEVICE_ID) |
| goto error; |
| |
| /* create dvb_frontend */ |
| memcpy(&state->frontend.ops, &dib3000mb_ops, sizeof(struct dvb_frontend_ops)); |
| state->frontend.demodulator_priv = state; |
| |
| /* set the xfer operations */ |
| xfer_ops->pid_parse = dib3000mb_pid_parse; |
| xfer_ops->fifo_ctrl = dib3000mb_fifo_control; |
| xfer_ops->pid_ctrl = dib3000mb_pid_control; |
| xfer_ops->tuner_pass_ctrl = dib3000mb_tuner_pass_ctrl; |
| |
| return &state->frontend; |
| |
| error: |
| kfree(state); |
| return NULL; |
| } |
| |
| static struct dvb_frontend_ops dib3000mb_ops = { |
| |
| .info = { |
| .name = "DiBcom 3000M-B DVB-T", |
| .type = FE_OFDM, |
| .frequency_min = 44250000, |
| .frequency_max = 867250000, |
| .frequency_stepsize = 62500, |
| .caps = FE_CAN_INVERSION_AUTO | |
| 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_AUTO | |
| FE_CAN_TRANSMISSION_MODE_AUTO | |
| FE_CAN_GUARD_INTERVAL_AUTO | |
| FE_CAN_RECOVER | |
| FE_CAN_HIERARCHY_AUTO, |
| }, |
| |
| .release = dib3000mb_release, |
| |
| .init = dib3000mb_fe_init_nonmobile, |
| .sleep = dib3000mb_sleep, |
| |
| .set_frontend = dib3000mb_set_frontend_and_tuner, |
| .get_frontend = dib3000mb_get_frontend, |
| .get_tune_settings = dib3000mb_fe_get_tune_settings, |
| |
| .read_status = dib3000mb_read_status, |
| .read_ber = dib3000mb_read_ber, |
| .read_signal_strength = dib3000mb_read_signal_strength, |
| .read_snr = dib3000mb_read_snr, |
| .read_ucblocks = dib3000mb_read_unc_blocks, |
| }; |
| |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE("GPL"); |
| |
| EXPORT_SYMBOL(dib3000mb_attach); |
