/* * dvb_frontend.h * * Copyright (C) 2001 convergence integrated media GmbH * Copyright (C) 2004 convergence GmbH * * Written by Ralph Metzler * Overhauled by Holger Waechtler * Kernel I2C stuff by Michael Hunold * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 2.1 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * */ #ifndef _DVB_FRONTEND_H_ #define _DVB_FRONTEND_H_ #include #include #include #include #include #include #include #include #include #include #include "dvbdev.h" struct dvb_frontend_tune_settings { int min_delay_ms; int step_size; int max_drift; struct dvb_frontend_parameters parameters; }; struct dvb_frontend; struct dvb_tuner_info { char name[128]; u32 frequency_min; u32 frequency_max; u32 frequency_step; u32 bandwidth_min; u32 bandwidth_max; u32 bandwidth_step; }; struct analog_parameters { unsigned int frequency; unsigned int mode; unsigned int audmode; u64 std; }; enum dvbfe_modcod { DVBFE_MODCOD_DUMMY_PLFRAME = 0, DVBFE_MODCOD_QPSK_1_4, DVBFE_MODCOD_QPSK_1_3, DVBFE_MODCOD_QPSK_2_5, DVBFE_MODCOD_QPSK_1_2, DVBFE_MODCOD_QPSK_3_5, DVBFE_MODCOD_QPSK_2_3, DVBFE_MODCOD_QPSK_3_4, DVBFE_MODCOD_QPSK_4_5, DVBFE_MODCOD_QPSK_5_6, DVBFE_MODCOD_QPSK_8_9, DVBFE_MODCOD_QPSK_9_10, DVBFE_MODCOD_8PSK_3_5, DVBFE_MODCOD_8PSK_2_3, DVBFE_MODCOD_8PSK_3_4, DVBFE_MODCOD_8PSK_5_6, DVBFE_MODCOD_8PSK_8_9, DVBFE_MODCOD_8PSK_9_10, DVBFE_MODCOD_16APSK_2_3, DVBFE_MODCOD_16APSK_3_4, DVBFE_MODCOD_16APSK_4_5, DVBFE_MODCOD_16APSK_5_6, DVBFE_MODCOD_16APSK_8_9, DVBFE_MODCOD_16APSK_9_10, DVBFE_MODCOD_32APSK_3_4, DVBFE_MODCOD_32APSK_4_5, DVBFE_MODCOD_32APSK_5_6, DVBFE_MODCOD_32APSK_8_9, DVBFE_MODCOD_32APSK_9_10, DVBFE_MODCOD_RESERVED_1, DVBFE_MODCOD_BPSK_1_3, DVBFE_MODCOD_BPSK_1_4, DVBFE_MODCOD_RESERVED_2 }; enum tuner_param { DVBFE_TUNER_FREQUENCY = (1 << 0), DVBFE_TUNER_TUNERSTEP = (1 << 1), DVBFE_TUNER_IFFREQ = (1 << 2), DVBFE_TUNER_BANDWIDTH = (1 << 3), DVBFE_TUNER_REFCLOCK = (1 << 4), DVBFE_TUNER_IQSENSE = (1 << 5), DVBFE_TUNER_DUMMY = (1 << 31) }; /* * ALGO_HW: (Hardware Algorithm) * ---------------------------------------------------------------- * Devices that support this algorithm do everything in hardware * and no software support is needed to handle them. * Requesting these devices to LOCK is the only thing required, * device is supposed to do everything in the hardware. * * ALGO_SW: (Software Algorithm) * ---------------------------------------------------------------- * These are dumb devices, that require software to do everything * * ALGO_CUSTOM: (Customizable Agorithm) * ---------------------------------------------------------------- * Devices having this algorithm can be customized to have specific * algorithms in the frontend driver, rather than simply doing a * software zig-zag. In this case the zigzag maybe hardware assisted * or it maybe completely done in hardware. In all cases, usage of * this algorithm, in conjunction with the search and track * callbacks, utilizes the driver specific algorithm. * * ALGO_RECOVERY: (Recovery Algorithm) * ---------------------------------------------------------------- * These devices have AUTO recovery capabilities from LOCK failure */ enum dvbfe_algo { DVBFE_ALGO_HW = (1 << 0), DVBFE_ALGO_SW = (1 << 1), DVBFE_ALGO_CUSTOM = (1 << 2), DVBFE_ALGO_RECOVERY = (1 << 31) }; struct tuner_state { u32 frequency; u32 tunerstep; u32 ifreq; u32 bandwidth; u32 iqsense; u32 refclock; }; /* * search callback possible return status * * DVBFE_ALGO_SEARCH_SUCCESS * The frontend search algorithm completed and returned successfully * * DVBFE_ALGO_SEARCH_ASLEEP * The frontend search algorithm is sleeping * * DVBFE_ALGO_SEARCH_FAILED * The frontend search for a signal failed * * DVBFE_ALGO_SEARCH_INVALID * The frontend search algorith was probably supplied with invalid * parameters and the search is an invalid one * * DVBFE_ALGO_SEARCH_ERROR * The frontend search algorithm failed due to some error * * DVBFE_ALGO_SEARCH_AGAIN * The frontend search algorithm was requested to search again */ enum dvbfe_search { DVBFE_ALGO_SEARCH_SUCCESS = (1 << 0), DVBFE_ALGO_SEARCH_ASLEEP = (1 << 1), DVBFE_ALGO_SEARCH_FAILED = (1 << 2), DVBFE_ALGO_SEARCH_INVALID = (1 << 3), DVBFE_ALGO_SEARCH_AGAIN = (1 << 4), DVBFE_ALGO_SEARCH_ERROR = (1 << 31), }; struct dvb_tuner_ops { struct dvb_tuner_info info; int (*release)(struct dvb_frontend *fe); int (*init)(struct dvb_frontend *fe); int (*sleep)(struct dvb_frontend *fe); /** This is for simple PLLs - set all parameters in one go. */ int (*set_params)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p); int (*set_analog_params)(struct dvb_frontend *fe, struct analog_parameters *p); /** This is support for demods like the mt352 - fills out the supplied buffer with what to write. */ int (*calc_regs)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p, u8 *buf, int buf_len); /** This is to allow setting tuner-specific configs */ int (*set_config)(struct dvb_frontend *fe, void *priv_cfg); int (*get_frequency)(struct dvb_frontend *fe, u32 *frequency); int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth); int (*get_if_frequency)(struct dvb_frontend *fe, u32 *frequency); #define TUNER_STATUS_LOCKED 1 #define TUNER_STATUS_STEREO 2 int (*get_status)(struct dvb_frontend *fe, u32 *status); int (*get_rf_strength)(struct dvb_frontend *fe, u16 *strength); /** These are provided separately from set_params in order to facilitate silicon * tuners which require sophisticated tuning loops, controlling each parameter separately. */ int (*set_frequency)(struct dvb_frontend *fe, u32 frequency); int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth); /* * These are provided separately from set_params in order to facilitate silicon * tuners which require sophisticated tuning loops, controlling each parameter separately. */ int (*set_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state); int (*get_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state); }; struct analog_demod_info { char *name; }; struct analog_demod_ops { struct analog_demod_info info; void (*set_params)(struct dvb_frontend *fe, struct analog_parameters *params); int (*has_signal)(struct dvb_frontend *fe); int (*get_afc)(struct dvb_frontend *fe); void (*tuner_status)(struct dvb_frontend *fe); void (*standby)(struct dvb_frontend *fe); void (*release)(struct dvb_frontend *fe); int (*i2c_gate_ctrl)(struct dvb_frontend *fe, int enable); /** This is to allow setting tuner-specific configuration */ int (*set_config)(struct dvb_frontend *fe, void *priv_cfg); }; struct dvb_frontend_ops { struct dvb_frontend_info info; void (*release)(struct dvb_frontend* fe); void (*release_sec)(struct dvb_frontend* fe); int (*init)(struct dvb_frontend* fe); int (*sleep)(struct dvb_frontend* fe); int (*write)(struct dvb_frontend* fe, const u8 buf[], int len); /* if this is set, it overrides the default swzigzag */ int (*tune)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, unsigned int mode_flags, unsigned int *delay, fe_status_t *status); /* get frontend tuning algorithm from the module */ enum dvbfe_algo (*get_frontend_algo)(struct dvb_frontend *fe); /* these two are only used for the swzigzag code */ int (*set_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params); int (*get_tune_settings)(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* settings); int (*get_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params); int (*read_status)(struct dvb_frontend* fe, fe_status_t* status); int (*read_ber)(struct dvb_frontend* fe, u32* ber); int (*read_signal_strength)(struct dvb_frontend* fe, u16* strength); int (*read_snr)(struct dvb_frontend* fe, u16* snr); int (*read_ucblocks)(struct dvb_frontend* fe, u32* ucblocks); int (*diseqc_reset_overload)(struct dvb_frontend* fe); int (*diseqc_send_master_cmd)(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd); int (*diseqc_recv_slave_reply)(struct dvb_frontend* fe, struct dvb_diseqc_slave_reply* reply); int (*diseqc_send_burst)(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd); int (*set_tone)(struct dvb_frontend* fe, fe_sec_tone_mode_t tone); int (*set_voltage)(struct dvb_frontend* fe, fe_sec_voltage_t voltage); int (*enable_high_lnb_voltage)(struct dvb_frontend* fe, long arg); int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned long cmd); int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable); int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire); /* These callbacks are for devices that implement their own * tuning algorithms, rather than a simple swzigzag */ enum dvbfe_search (*search)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p); int (*track)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p); struct dvb_tuner_ops tuner_ops; struct analog_demod_ops analog_ops; int (*set_property)(struct dvb_frontend* fe, struct dtv_property* tvp); int (*get_property)(struct dvb_frontend* fe, struct dtv_property* tvp); }; #define MAX_EVENT 8 struct dvb_fe_events { struct dvb_frontend_event events[MAX_EVENT]; int eventw; int eventr; int overflow; wait_queue_head_t wait_queue; struct mutex mtx; }; struct dtv_frontend_properties { /* Cache State */ u32 state; u32 frequency; fe_modulation_t modulation; fe_sec_voltage_t voltage; fe_sec_tone_mode_t sectone; fe_spectral_inversion_t inversion; fe_code_rate_t fec_inner; fe_transmit_mode_t transmission_mode; u32 bandwidth_hz; /* 0 = AUTO */ fe_guard_interval_t guard_interval; fe_hierarchy_t hierarchy; u32 symbol_rate; fe_code_rate_t code_rate_HP; fe_code_rate_t code_rate_LP; fe_pilot_t pilot; fe_rolloff_t rolloff; fe_delivery_system_t delivery_system; /* ISDB-T specifics */ u8 isdbt_partial_reception; u8 isdbt_sb_mode; u8 isdbt_sb_subchannel; u32 isdbt_sb_segment_idx; u32 isdbt_sb_segment_count; u8 isdbt_layer_enabled; struct { u8 segment_count; fe_code_rate_t fec; fe_modulation_t modulation; u8 interleaving; } layer[3]; /* ISDB-T specifics */ u32 isdbs_ts_id; /* DVB-T2 specifics */ u32 dvbt2_plp_id; }; struct dvb_frontend { struct dvb_frontend_ops ops; struct dvb_adapter *dvb; void *demodulator_priv; void *tuner_priv; void *frontend_priv; void *sec_priv; void *analog_demod_priv; struct dtv_frontend_properties dtv_property_cache; #define DVB_FRONTEND_COMPONENT_TUNER 0 int (*callback)(void *adapter_priv, int component, int cmd, int arg); int id; }; extern int dvb_register_frontend(struct dvb_adapter *dvb, struct dvb_frontend *fe); extern int dvb_unregister_frontend(struct dvb_frontend *fe); extern void dvb_frontend_detach(struct dvb_frontend *fe); extern void dvb_frontend_reinitialise(struct dvb_frontend *fe); extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec); extern s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime); #endif