// SPDX-License-Identifier: GPL-2.0-only /* * Linux-DVB Driver for DiBcom's DiB8000 chip (ISDB-T). * * Copyright (C) 2009 DiBcom (http://www.dibcom.fr/) */ #define pr_fmt(fmt) … #include <linux/kernel.h> #include <linux/slab.h> #include <linux/i2c.h> #include <linux/mutex.h> #include <asm/div64.h> #include <linux/int_log.h> #include <media/dvb_frontend.h> #include "dib8000.h" #define LAYER_ALL … #define LAYER_A … #define LAYER_B … #define LAYER_C … #define MAX_NUMBER_OF_FRONTENDS … /* #define DIB8000_AGC_FREEZE */ static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(…) …; #define dprintk(fmt, arg...) … struct i2c_device { … }; enum param_loop_step { … }; enum dib8000_autosearch_step { … }; enum timeout_mode { … }; struct dib8000_state { … }; enum dib8000_power_mode { … }; static u16 dib8000_i2c_read16(struct i2c_device *i2c, u16 reg) { … } static u16 __dib8000_read_word(struct dib8000_state *state, u16 reg) { … } static u16 dib8000_read_word(struct dib8000_state *state, u16 reg) { … } static u32 dib8000_read32(struct dib8000_state *state, u16 reg) { … } static int dib8000_i2c_write16(struct i2c_device *i2c, u16 reg, u16 val) { … } static int dib8000_write_word(struct dib8000_state *state, u16 reg, u16 val) { … } static const s16 coeff_2k_sb_1seg_dqpsk[8] = …; static const s16 coeff_2k_sb_1seg[8] = …; static const s16 coeff_2k_sb_3seg_0dqpsk_1dqpsk[8] = …; static const s16 coeff_2k_sb_3seg_0dqpsk[8] = …; static const s16 coeff_2k_sb_3seg_1dqpsk[8] = …; static const s16 coeff_2k_sb_3seg[8] = …; static const s16 coeff_4k_sb_1seg_dqpsk[8] = …; static const s16 coeff_4k_sb_1seg[8] = …; static const s16 coeff_4k_sb_3seg_0dqpsk_1dqpsk[8] = …; static const s16 coeff_4k_sb_3seg_0dqpsk[8] = …; static const s16 coeff_4k_sb_3seg_1dqpsk[8] = …; static const s16 coeff_4k_sb_3seg[8] = …; static const s16 coeff_8k_sb_1seg_dqpsk[8] = …; static const s16 coeff_8k_sb_1seg[8] = …; static const s16 coeff_8k_sb_3seg_0dqpsk_1dqpsk[8] = …; static const s16 coeff_8k_sb_3seg_0dqpsk[8] = …; static const s16 coeff_8k_sb_3seg_1dqpsk[8] = …; static const s16 coeff_8k_sb_3seg[8] = …; static const s16 ana_fe_coeff_3seg[24] = …; static const s16 ana_fe_coeff_1seg[24] = …; static const s16 ana_fe_coeff_13seg[24] = …; static u16 fft_to_mode(struct dib8000_state *state) { … } static void dib8000_set_acquisition_mode(struct dib8000_state *state) { … } static int dib8000_set_output_mode(struct dvb_frontend *fe, int mode) { … } static int dib8000_set_diversity_in(struct dvb_frontend *fe, int onoff) { … } static void dib8000_set_power_mode(struct dib8000_state *state, enum dib8000_power_mode mode) { … } static int dib8000_set_adc_state(struct dib8000_state *state, enum dibx000_adc_states no) { … } static int dib8000_set_bandwidth(struct dvb_frontend *fe, u32 bw) { … } static int dib8000_sad_calib(struct dib8000_state *state) { … } static int dib8000_set_wbd_ref(struct dvb_frontend *fe, u16 value) { … } static void dib8000_reset_pll_common(struct dib8000_state *state, const struct dibx000_bandwidth_config *bw) { … } static void dib8000_reset_pll(struct dib8000_state *state) { … } static int dib8000_update_pll(struct dvb_frontend *fe, struct dibx000_bandwidth_config *pll, u32 bw, u8 ratio) { … } static int dib8000_reset_gpio(struct dib8000_state *st) { … } static int dib8000_cfg_gpio(struct dib8000_state *st, u8 num, u8 dir, u8 val) { … } static int dib8000_set_gpio(struct dvb_frontend *fe, u8 num, u8 dir, u8 val) { … } static const u16 dib8000_defaults[] = …; static u16 dib8000_identify(struct i2c_device *client) { … } static int dib8000_read_unc_blocks(struct dvb_frontend *fe, u32 *unc); static void dib8000_reset_stats(struct dvb_frontend *fe) { … } static int dib8000_reset(struct dvb_frontend *fe) { … } static void dib8000_restart_agc(struct dib8000_state *state) { … } static int dib8000_update_lna(struct dib8000_state *state) { … } static int dib8000_set_agc_config(struct dib8000_state *state, u8 band) { … } static void dib8000_pwm_agc_reset(struct dvb_frontend *fe) { … } static int dib8000_agc_soft_split(struct dib8000_state *state) { … } static int dib8000_agc_startup(struct dvb_frontend *fe) { … } static void dib8096p_host_bus_drive(struct dib8000_state *state, u8 drive) { … } static u32 dib8096p_calcSyncFreq(u32 P_Kin, u32 P_Kout, u32 insertExtSynchro, u32 syncSize) { … } static void dib8096p_cfg_DibTx(struct dib8000_state *state, u32 P_Kin, u32 P_Kout, u32 insertExtSynchro, u32 synchroMode, u32 syncWord, u32 syncSize) { … } static void dib8096p_cfg_DibRx(struct dib8000_state *state, u32 P_Kin, u32 P_Kout, u32 synchroMode, u32 insertExtSynchro, u32 syncWord, u32 syncSize, u32 dataOutRate) { … } static void dib8096p_enMpegMux(struct dib8000_state *state, int onoff) { … } static void dib8096p_configMpegMux(struct dib8000_state *state, u16 pulseWidth, u16 enSerialMode, u16 enSerialClkDiv2) { … } static void dib8096p_setDibTxMux(struct dib8000_state *state, int mode) { … } static void dib8096p_setHostBusMux(struct dib8000_state *state, int mode) { … } static int dib8096p_set_diversity_in(struct dvb_frontend *fe, int onoff) { … } static int dib8096p_set_output_mode(struct dvb_frontend *fe, int mode) { … } static int map_addr_to_serpar_number(struct i2c_msg *msg) { … } static int dib8096p_tuner_write_serpar(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num) { … } static int dib8096p_tuner_read_serpar(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num) { … } static int dib8096p_tuner_rw_serpar(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num) { … } static int dib8096p_rw_on_apb(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num, u16 apb_address) { … } static int dib8096p_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num) { … } static u32 dib8096p_i2c_func(struct i2c_adapter *adapter) { … } static const struct i2c_algorithm dib8096p_tuner_xfer_algo = …; static struct i2c_adapter *dib8096p_get_i2c_tuner(struct dvb_frontend *fe) { … } static int dib8096p_tuner_sleep(struct dvb_frontend *fe, int onoff) { … } static const s32 lut_1000ln_mant[] = …; static s32 dib8000_get_adc_power(struct dvb_frontend *fe, u8 mode) { … } static int dib8090p_get_dc_power(struct dvb_frontend *fe, u8 IQ) { … } static void dib8000_update_timf(struct dib8000_state *state) { … } static u32 dib8000_ctrl_timf(struct dvb_frontend *fe, uint8_t op, uint32_t timf) { … } static const u16 adc_target_16dB[11] = …; static const u8 permu_seg[] = …; static u16 dib8000_set_layer(struct dib8000_state *state, u8 layer_index, u16 max_constellation) { … } static const u16 adp_Q64[4] = …; /* P_adp_regul_cnt 0.04, P_adp_noise_cnt -0.002, P_adp_regul_ext 0.02, P_adp_noise_ext -0.001 */ static const u16 adp_Q16[4] = …; /* P_adp_regul_cnt 0.07, P_adp_noise_cnt -0.004, P_adp_regul_ext 0.02, P_adp_noise_ext -0.002 */ static const u16 adp_Qdefault[4] = …; /* P_adp_regul_cnt 0.3, P_adp_noise_cnt -0.01, P_adp_regul_ext 0.1, P_adp_noise_ext -0.002 */ static u16 dib8000_adp_fine_tune(struct dib8000_state *state, u16 max_constellation) { … } static void dib8000_update_ana_gain(struct dib8000_state *state, u16 ana_gain) { … } static void dib8000_load_ana_fe_coefs(struct dib8000_state *state, const s16 *ana_fe) { … } static const u16 lut_prbs_2k[13] = …; static const u16 lut_prbs_4k[13] = …; static const u16 lut_prbs_8k[13] = …; static u16 dib8000_get_init_prbs(struct dib8000_state *state, u16 subchannel) { … } static void dib8000_set_13seg_channel(struct dib8000_state *state) { … } static void dib8000_set_subchannel_prbs(struct dib8000_state *state, u16 init_prbs) { … } static void dib8000_small_fine_tune(struct dib8000_state *state) { … } static const u16 coff_thres_1seg[3] = …; static const u16 coff_thres_3seg[3] = …; static void dib8000_set_sb_channel(struct dib8000_state *state) { … } static void dib8000_set_isdbt_common_channel(struct dib8000_state *state, u8 seq, u8 autosearching) { … } static u32 dib8000_wait_lock(struct dib8000_state *state, u32 internal, u32 wait0_ms, u32 wait1_ms, u32 wait2_ms) { … } static int dib8000_autosearch_start(struct dvb_frontend *fe) { … } static int dib8000_autosearch_irq(struct dvb_frontend *fe) { … } static void dib8000_viterbi_state(struct dib8000_state *state, u8 onoff) { … } static void dib8000_set_dds(struct dib8000_state *state, s32 offset_khz) { … } static void dib8000_set_frequency_offset(struct dib8000_state *state) { … } static u16 LUT_isdbt_symbol_duration[4] = …; static u32 dib8000_get_symbol_duration(struct dib8000_state *state) { … } static void dib8000_set_isdbt_loop_params(struct dib8000_state *state, enum param_loop_step loop_step) { … } static void dib8000_demod_restart(struct dib8000_state *state) { … } static void dib8000_set_sync_wait(struct dib8000_state *state) { … } static unsigned long dib8000_get_timeout(struct dib8000_state *state, u32 delay, enum timeout_mode mode) { … } static s32 dib8000_get_status(struct dvb_frontend *fe) { … } static enum frontend_tune_state dib8000_get_tune_state(struct dvb_frontend *fe) { … } static int dib8000_set_tune_state(struct dvb_frontend *fe, enum frontend_tune_state tune_state) { … } static int dib8000_tune_restart_from_demod(struct dvb_frontend *fe) { … } static u16 dib8000_read_lock(struct dvb_frontend *fe) { … } static int dib8090p_init_sdram(struct dib8000_state *state) { … } /** * is_manual_mode - Check if TMCC should be used for parameters settings * @c: struct dvb_frontend_properties * * By default, TMCC table should be used for parameter settings on most * usercases. However, sometimes it is desirable to lock the demod to * use the manual parameters. * * On manual mode, the current dib8000_tune state machine is very restrict: * It requires that both per-layer and per-transponder parameters to be * properly specified, otherwise the device won't lock. * * Check if all those conditions are properly satisfied before allowing * the device to use the manual frequency lock mode. */ static int is_manual_mode(struct dtv_frontend_properties *c) { … } static int dib8000_tune(struct dvb_frontend *fe) { … } static int dib8000_wakeup(struct dvb_frontend *fe) { … } static int dib8000_sleep(struct dvb_frontend *fe) { … } static int dib8000_read_status(struct dvb_frontend *fe, enum fe_status *stat); static int dib8000_get_frontend(struct dvb_frontend *fe, struct dtv_frontend_properties *c) { … } static int dib8000_set_frontend(struct dvb_frontend *fe) { … } static int dib8000_get_stats(struct dvb_frontend *fe, enum fe_status stat); static int dib8000_read_status(struct dvb_frontend *fe, enum fe_status *stat) { … } static int dib8000_read_ber(struct dvb_frontend *fe, u32 * ber) { … } static int dib8000_read_unc_blocks(struct dvb_frontend *fe, u32 * unc) { … } static int dib8000_read_signal_strength(struct dvb_frontend *fe, u16 * strength) { … } static u32 dib8000_get_snr(struct dvb_frontend *fe) { … } static int dib8000_read_snr(struct dvb_frontend *fe, u16 * snr) { … } struct per_layer_regs { … }; static const struct per_layer_regs per_layer_regs[] = …; struct linear_segments { … }; /* * Table to estimate signal strength in dBm. * This table was empirically determinated by measuring the signal * strength generated by a DTA-2111 RF generator directly connected into * a dib8076 device (a PixelView PV-D231U stick), using a good quality * 3 meters RC6 cable and good RC6 connectors. * The real value can actually be different on other devices, depending * on several factors, like if LNA is enabled or not, if diversity is * enabled, type of connectors, etc. * Yet, it is better to use this measure in dB than a random non-linear * percentage value, especially for antenna adjustments. * On my tests, the precision of the measure using this table is about * 0.5 dB, with sounds reasonable enough. */ static struct linear_segments strength_to_db_table[] = …; static u32 interpolate_value(u32 value, struct linear_segments *segments, unsigned len) { … } static u32 dib8000_get_time_us(struct dvb_frontend *fe, int layer) { … } static int dib8000_get_stats(struct dvb_frontend *fe, enum fe_status stat) { … } static int dib8000_set_slave_frontend(struct dvb_frontend *fe, struct dvb_frontend *fe_slave) { … } static struct dvb_frontend *dib8000_get_slave_frontend(struct dvb_frontend *fe, int slave_index) { … } static int dib8000_i2c_enumeration(struct i2c_adapter *host, int no_of_demods, u8 default_addr, u8 first_addr, u8 is_dib8096p) { … } static int dib8000_fe_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *tune) { … } static void dib8000_release(struct dvb_frontend *fe) { … } static struct i2c_adapter *dib8000_get_i2c_master(struct dvb_frontend *fe, enum dibx000_i2c_interface intf, int gating) { … } static int dib8000_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff) { … } static int dib8000_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff) { … } static const struct dvb_frontend_ops dib8000_ops = …; static struct dvb_frontend *dib8000_init(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib8000_config *cfg) { … } void *dib8000_attach(struct dib8000_ops *ops) { … } EXPORT_SYMBOL_GPL(…); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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