diff options
Diffstat (limited to 'drivers/media/dvb-core/dvb_frontend.h')
| -rw-r--r-- | drivers/media/dvb-core/dvb_frontend.h | 790 |
1 files changed, 0 insertions, 790 deletions
diff --git a/drivers/media/dvb-core/dvb_frontend.h b/drivers/media/dvb-core/dvb_frontend.h deleted file mode 100644 index ace0c2fb26c2..000000000000 --- a/drivers/media/dvb-core/dvb_frontend.h +++ /dev/null @@ -1,790 +0,0 @@ -/* - * dvb_frontend.h - * - * The Digital TV Frontend kABI defines a driver-internal interface for - * registering low-level, hardware specific driver to a hardware independent - * frontend layer. - * - * 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 <hunold@convergence.de> - * - * 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 <linux/types.h> -#include <linux/sched.h> -#include <linux/ioctl.h> -#include <linux/i2c.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/delay.h> -#include <linux/mutex.h> -#include <linux/slab.h> - -#include <linux/dvb/frontend.h> - -#include "dvbdev.h" - -/* - * Maximum number of Delivery systems per frontend. It - * should be smaller or equal to 32 - */ -#define MAX_DELSYS 8 - -/** - * struct dvb_frontend_tune_settings - parameters to adjust frontend tuning - * - * @min_delay_ms: minimum delay for tuning, in ms - * @step_size: step size between two consecutive frequencies - * @max_drift: maximum drift - * - * NOTE: step_size is in Hz, for terrestrial/cable or kHz for satellite - */ -struct dvb_frontend_tune_settings { - int min_delay_ms; - int step_size; - int max_drift; -}; - -struct dvb_frontend; - -/** - * struct dvb_tuner_info - Frontend name and min/max ranges/bandwidths - * - * @name: name of the Frontend - * @frequency_min: minimal frequency supported - * @frequency_max: maximum frequency supported - * @frequency_step: frequency step - * @bandwidth_min: minimal frontend bandwidth supported - * @bandwidth_max: maximum frontend bandwidth supported - * @bandwidth_step: frontend bandwidth step - * - * NOTE: frequency parameters are in Hz, for terrestrial/cable or kHz for - * satellite. - */ -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 - Parameters to tune into an analog/radio channel - * - * @frequency: Frequency used by analog TV tuner (either in 62.5 kHz step, - * for TV, or 62.5 Hz for radio) - * @mode: Tuner mode, as defined on enum v4l2_tuner_type - * @audmode: Audio mode as defined for the rxsubchans field at videodev2.h, - * e. g. V4L2_TUNER_MODE_* - * @std: TV standard bitmap as defined at videodev2.h, e. g. V4L2_STD_* - * - * Hybrid tuners should be supported by both V4L2 and DVB APIs. This - * struct contains the data that are used by the V4L2 side. To avoid - * dependencies from V4L2 headers, all enums here are declared as integers. - */ -struct analog_parameters { - unsigned int frequency; - unsigned int mode; - unsigned int audmode; - u64 std; -}; - -/** - * enum dvbfe_algo - defines the algorithm used to tune into a channel - * - * @DVBFE_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. - * - * @DVBFE_ALGO_SW: Software Algorithm - - * These are dumb devices, that require software to do everything - * - * @DVBFE_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. - * - * @DVBFE_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) -}; - -/** - * enum dvbfe_search - 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 - Tuner information and callbacks - * - * @info: embedded &struct dvb_tuner_info with tuner properties - * @release: callback function called when frontend is detached. - * drivers should free any allocated memory. - * @init: callback function used to initialize the tuner device. - * @sleep: callback function used to put the tuner to sleep. - * @suspend: callback function used to inform that the Kernel will - * suspend. - * @resume: callback function used to inform that the Kernel is - * resuming from suspend. - * @set_params: callback function used to inform the tuner to tune - * into a digital TV channel. The properties to be used - * are stored at &struct dvb_frontend.dtv_property_cache. - * The tuner demod can change the parameters to reflect - * the changes needed for the channel to be tuned, and - * update statistics. This is the recommended way to set - * the tuner parameters and should be used on newer - * drivers. - * @set_analog_params: callback function used to tune into an analog TV - * channel on hybrid tuners. It passes @analog_parameters - * to the driver. - * @set_config: callback function used to send some tuner-specific - * parameters. - * @get_frequency: get the actual tuned frequency - * @get_bandwidth: get the bandwitdh used by the low pass filters - * @get_if_frequency: get the Intermediate Frequency, in Hz. For baseband, - * should return 0. - * @get_status: returns the frontend lock status - * @get_rf_strength: returns the RF signal strength. Used mostly to support - * analog TV and radio. Digital TV should report, instead, - * via DVBv5 API (&struct dvb_frontend.dtv_property_cache). - * @get_afc: Used only by analog TV core. Reports the frequency - * drift due to AFC. - * @calc_regs: callback function used to pass register data settings - * for simple tuners. Shouldn't be used on newer drivers. - * @set_frequency: Set a new frequency. Shouldn't be used on newer drivers. - * @set_bandwidth: Set a new frequency. Shouldn't be used on newer drivers. - * - * NOTE: frequencies used on @get_frequency and @set_frequency are in Hz for - * terrestrial/cable or kHz for satellite. - * - */ -struct dvb_tuner_ops { - - struct dvb_tuner_info info; - - void (*release)(struct dvb_frontend *fe); - int (*init)(struct dvb_frontend *fe); - int (*sleep)(struct dvb_frontend *fe); - int (*suspend)(struct dvb_frontend *fe); - int (*resume)(struct dvb_frontend *fe); - - /* This is the recomended way to set the tuner */ - int (*set_params)(struct dvb_frontend *fe); - int (*set_analog_params)(struct dvb_frontend *fe, struct analog_parameters *p); - - 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); - int (*get_afc)(struct dvb_frontend *fe, s32 *afc); - - /* - * This is support for demods like the mt352 - fills out the supplied - * buffer with what to write. - * - * Don't use on newer drivers. - */ - int (*calc_regs)(struct dvb_frontend *fe, u8 *buf, int buf_len); - - /* - * These are provided separately from set_params in order to - * facilitate silicon tuners which require sophisticated tuning loops, - * controlling each parameter separately. - * - * Don't use on newer drivers. - */ - int (*set_frequency)(struct dvb_frontend *fe, u32 frequency); - int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth); -}; - -/** - * struct analog_demod_info - Information struct for analog TV part of the demod - * - * @name: Name of the analog TV demodulator - */ -struct analog_demod_info { - char *name; -}; - -/** - * struct analog_demod_ops - Demodulation information and callbacks for - * analog TV and radio - * - * @info: pointer to struct analog_demod_info - * @set_params: callback function used to inform the demod to set the - * demodulator parameters needed to decode an analog or - * radio channel. The properties are passed via - * &struct analog_params. - * @has_signal: returns 0xffff if has signal, or 0 if it doesn't. - * @get_afc: Used only by analog TV core. Reports the frequency - * drift due to AFC. - * @tuner_status: callback function that returns tuner status bits, e. g. - * %TUNER_STATUS_LOCKED and %TUNER_STATUS_STEREO. - * @standby: set the tuner to standby mode. - * @release: callback function called when frontend is detached. - * drivers should free any allocated memory. - * @i2c_gate_ctrl: controls the I2C gate. Newer drivers should use I2C - * mux support instead. - * @set_config: callback function used to send some tuner-specific - * parameters. - */ -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, u16 *signal); - int (*get_afc)(struct dvb_frontend *fe, s32 *afc); - 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 dtv_frontend_properties; - - -/** - * struct dvb_frontend_ops - Demodulation information and callbacks for - * ditialt TV - * - * @info: embedded &struct dvb_tuner_info with tuner properties - * @delsys: Delivery systems supported by the frontend - * @detach: callback function called when frontend is detached. - * drivers should clean up, but not yet free the &struct - * dvb_frontend allocation. - * @release: callback function called when frontend is ready to be - * freed. - * drivers should free any allocated memory. - * @release_sec: callback function requesting that the Satelite Equipment - * Control (SEC) driver to release and free any memory - * allocated by the driver. - * @init: callback function used to initialize the tuner device. - * @sleep: callback function used to put the tuner to sleep. - * @write: callback function used by some demod legacy drivers to - * allow other drivers to write data into their registers. - * Should not be used on new drivers. - * @tune: callback function used by demod drivers that use - * @DVBFE_ALGO_HW to tune into a frequency. - * @get_frontend_algo: returns the desired hardware algorithm. - * @set_frontend: callback function used to inform the demod to set the - * parameters for demodulating a digital TV channel. - * The properties to be used are stored at &struct - * dvb_frontend.dtv_property_cache. The demod can change - * the parameters to reflect the changes needed for the - * channel to be decoded, and update statistics. - * @get_tune_settings: callback function - * @get_frontend: callback function used to inform the parameters - * actuall in use. The properties to be used are stored at - * &struct dvb_frontend.dtv_property_cache and update - * statistics. Please notice that it should not return - * an error code if the statistics are not available - * because the demog is not locked. - * @read_status: returns the locking status of the frontend. - * @read_ber: legacy callback function to return the bit error rate. - * Newer drivers should provide such info via DVBv5 API, - * e. g. @set_frontend;/@get_frontend, implementing this - * callback only if DVBv3 API compatibility is wanted. - * @read_signal_strength: legacy callback function to return the signal - * strength. Newer drivers should provide such info via - * DVBv5 API, e. g. @set_frontend/@get_frontend, - * implementing this callback only if DVBv3 API - * compatibility is wanted. - * @read_snr: legacy callback function to return the Signal/Noise - * rate. Newer drivers should provide such info via - * DVBv5 API, e. g. @set_frontend/@get_frontend, - * implementing this callback only if DVBv3 API - * compatibility is wanted. - * @read_ucblocks: legacy callback function to return the Uncorrected Error - * Blocks. Newer drivers should provide such info via - * DVBv5 API, e. g. @set_frontend/@get_frontend, - * implementing this callback only if DVBv3 API - * compatibility is wanted. - * @diseqc_reset_overload: callback function to implement the - * FE_DISEQC_RESET_OVERLOAD() ioctl (only Satellite) - * @diseqc_send_master_cmd: callback function to implement the - * FE_DISEQC_SEND_MASTER_CMD() ioctl (only Satellite). - * @diseqc_recv_slave_reply: callback function to implement the - * FE_DISEQC_RECV_SLAVE_REPLY() ioctl (only Satellite) - * @diseqc_send_burst: callback function to implement the - * FE_DISEQC_SEND_BURST() ioctl (only Satellite). - * @set_tone: callback function to implement the - * FE_SET_TONE() ioctl (only Satellite). - * @set_voltage: callback function to implement the - * FE_SET_VOLTAGE() ioctl (only Satellite). - * @enable_high_lnb_voltage: callback function to implement the - * FE_ENABLE_HIGH_LNB_VOLTAGE() ioctl (only Satellite). - * @dishnetwork_send_legacy_command: callback function to implement the - * FE_DISHNETWORK_SEND_LEGACY_CMD() ioctl (only Satellite). - * Drivers should not use this, except when the DVB - * core emulation fails to provide proper support (e.g. - * if @set_voltage takes more than 8ms to work), and - * when backward compatibility with this legacy API is - * required. - * @i2c_gate_ctrl: controls the I2C gate. Newer drivers should use I2C - * mux support instead. - * @ts_bus_ctrl: callback function used to take control of the TS bus. - * @set_lna: callback function to power on/off/auto the LNA. - * @search: callback function used on some custom algo search algos. - * @tuner_ops: pointer to &struct dvb_tuner_ops - * @analog_ops: pointer to &struct analog_demod_ops - */ -struct dvb_frontend_ops { - struct dvb_frontend_info info; - - u8 delsys[MAX_DELSYS]; - - void (*detach)(struct dvb_frontend *fe); - 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, - bool re_tune, - unsigned int mode_flags, - unsigned int *delay, - enum fe_status *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); - int (*get_tune_settings)(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* settings); - - int (*get_frontend)(struct dvb_frontend *fe, - struct dtv_frontend_properties *props); - - int (*read_status)(struct dvb_frontend *fe, enum fe_status *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, - enum fe_sec_mini_cmd minicmd); - int (*set_tone)(struct dvb_frontend *fe, enum fe_sec_tone_mode tone); - int (*set_voltage)(struct dvb_frontend *fe, - enum fe_sec_voltage 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); - int (*set_lna)(struct dvb_frontend *); - - /* - * 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_tuner_ops tuner_ops; - struct analog_demod_ops analog_ops; -}; - -#ifdef __DVB_CORE__ -#define MAX_EVENT 8 - -/* Used only internally at dvb_frontend.c */ -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; -}; -#endif - -/** - * struct dtv_frontend_properties - contains a list of properties that are - * specific to a digital TV standard. - * - * @frequency: frequency in Hz for terrestrial/cable or in kHz for - * Satellite - * @modulation: Frontend modulation type - * @voltage: SEC voltage (only Satellite) - * @sectone: SEC tone mode (only Satellite) - * @inversion: Spectral inversion - * @fec_inner: Forward error correction inner Code Rate - * @transmission_mode: Transmission Mode - * @bandwidth_hz: Bandwidth, in Hz. A zero value means that userspace - * wants to autodetect. - * @guard_interval: Guard Interval - * @hierarchy: Hierarchy - * @symbol_rate: Symbol Rate - * @code_rate_HP: high priority stream code rate - * @code_rate_LP: low priority stream code rate - * @pilot: Enable/disable/autodetect pilot tones - * @rolloff: Rolloff factor (alpha) - * @delivery_system: FE delivery system (e. g. digital TV standard) - * @interleaving: interleaving - * @isdbt_partial_reception: ISDB-T partial reception (only ISDB standard) - * @isdbt_sb_mode: ISDB-T Sound Broadcast (SB) mode (only ISDB standard) - * @isdbt_sb_subchannel: ISDB-T SB subchannel (only ISDB standard) - * @isdbt_sb_segment_idx: ISDB-T SB segment index (only ISDB standard) - * @isdbt_sb_segment_count: ISDB-T SB segment count (only ISDB standard) - * @isdbt_layer_enabled: ISDB Layer enabled (only ISDB standard) - * @layer: ISDB per-layer data (only ISDB standard) - * @layer.segment_count: Segment Count; - * @layer.fec: per layer code rate; - * @layer.modulation: per layer modulation; - * @layer.interleaving: per layer interleaving. - * @stream_id: If different than zero, enable substream filtering, if - * hardware supports (DVB-S2 and DVB-T2). - * @atscmh_fic_ver: Version number of the FIC (Fast Information Channel) - * signaling data (only ATSC-M/H) - * @atscmh_parade_id: Parade identification number (only ATSC-M/H) - * @atscmh_nog: Number of MH groups per MH subframe for a designated - * parade (only ATSC-M/H) - * @atscmh_tnog: Total number of MH groups including all MH groups - * belonging to all MH parades in one MH subframe - * (only ATSC-M/H) - * @atscmh_sgn: Start group number (only ATSC-M/H) - * @atscmh_prc: Parade repetition cycle (only ATSC-M/H) - * @atscmh_rs_frame_mode: Reed Solomon (RS) frame mode (only ATSC-M/H) - * @atscmh_rs_frame_ensemble: RS frame ensemble (only ATSC-M/H) - * @atscmh_rs_code_mode_pri: RS code mode pri (only ATSC-M/H) - * @atscmh_rs_code_mode_sec: RS code mode sec (only ATSC-M/H) - * @atscmh_sccc_block_mode: Series Concatenated Convolutional Code (SCCC) - * Block Mode (only ATSC-M/H) - * @atscmh_sccc_code_mode_a: SCCC code mode A (only ATSC-M/H) - * @atscmh_sccc_code_mode_b: SCCC code mode B (only ATSC-M/H) - * @atscmh_sccc_code_mode_c: SCCC code mode C (only ATSC-M/H) - * @atscmh_sccc_code_mode_d: SCCC code mode D (only ATSC-M/H) - * @lna: Power ON/OFF/AUTO the Linear Now-noise Amplifier (LNA) - * @strength: DVBv5 API statistics: Signal Strength - * @cnr: DVBv5 API statistics: Signal to Noise ratio of the - * (main) carrier - * @pre_bit_error: DVBv5 API statistics: pre-Viterbi bit error count - * @pre_bit_count: DVBv5 API statistics: pre-Viterbi bit count - * @post_bit_error: DVBv5 API statistics: post-Viterbi bit error count - * @post_bit_count: DVBv5 API statistics: post-Viterbi bit count - * @block_error: DVBv5 API statistics: block error count - * @block_count: DVBv5 API statistics: block count - * - * NOTE: derivated statistics like Uncorrected Error blocks (UCE) are - * calculated on userspace. - * - * Only a subset of the properties are needed for a given delivery system. - * For more info, consult the media_api.html with the documentation of the - * Userspace API. - */ -struct dtv_frontend_properties { - u32 frequency; - enum fe_modulation modulation; - - enum fe_sec_voltage voltage; - enum fe_sec_tone_mode sectone; - enum fe_spectral_inversion inversion; - enum fe_code_rate fec_inner; - enum fe_transmit_mode transmission_mode; - u32 bandwidth_hz; /* 0 = AUTO */ - enum fe_guard_interval guard_interval; - enum fe_hierarchy hierarchy; - u32 symbol_rate; - enum fe_code_rate code_rate_HP; - enum fe_code_rate code_rate_LP; - - enum fe_pilot pilot; - enum fe_rolloff rolloff; - - enum fe_delivery_system delivery_system; - - enum fe_interleaving interleaving; - - /* 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; - enum fe_code_rate fec; - enum fe_modulation modulation; - u8 interleaving; - } layer[3]; - - /* Multistream specifics */ - u32 stream_id; - - /* ATSC-MH specifics */ - u8 atscmh_fic_ver; - u8 atscmh_parade_id; - u8 atscmh_nog; - u8 atscmh_tnog; - u8 atscmh_sgn; - u8 atscmh_prc; - - u8 atscmh_rs_frame_mode; - u8 atscmh_rs_frame_ensemble; - u8 atscmh_rs_code_mode_pri; - u8 atscmh_rs_code_mode_sec; - u8 atscmh_sccc_block_mode; - u8 atscmh_sccc_code_mode_a; - u8 atscmh_sccc_code_mode_b; - u8 atscmh_sccc_code_mode_c; - u8 atscmh_sccc_code_mode_d; - - u32 lna; - - /* statistics data */ - struct dtv_fe_stats strength; - struct dtv_fe_stats cnr; - struct dtv_fe_stats pre_bit_error; - struct dtv_fe_stats pre_bit_count; - struct dtv_fe_stats post_bit_error; - struct dtv_fe_stats post_bit_count; - struct dtv_fe_stats block_error; - struct dtv_fe_stats block_count; -}; - -#define DVB_FE_NO_EXIT 0 -#define DVB_FE_NORMAL_EXIT 1 -#define DVB_FE_DEVICE_REMOVED 2 -#define DVB_FE_DEVICE_RESUME 3 - -/** - * struct dvb_frontend - Frontend structure to be used on drivers. - * - * @refcount: refcount to keep track of &struct dvb_frontend - * references - * @ops: embedded &struct dvb_frontend_ops - * @dvb: pointer to &struct dvb_adapter - * @demodulator_priv: demod private data - * @tuner_priv: tuner private data - * @frontend_priv: frontend private data - * @sec_priv: SEC private data - * @analog_demod_priv: Analog demod private data - * @dtv_property_cache: embedded &struct dtv_frontend_properties - * @callback: callback function used on some drivers to call - * either the tuner or the demodulator. - * @id: Frontend ID - * @exit: Used to inform the DVB core that the frontend - * thread should exit (usually, means that the hardware - * got disconnected. - */ - -struct dvb_frontend { - struct kref refcount; - 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 -#define DVB_FRONTEND_COMPONENT_DEMOD 1 - int (*callback)(void *adapter_priv, int component, int cmd, int arg); - int id; - unsigned int exit; -}; - -/** - * dvb_register_frontend() - Registers a DVB frontend at the adapter - * - * @dvb: pointer to &struct dvb_adapter - * @fe: pointer to &struct dvb_frontend - * - * Allocate and initialize the private data needed by the frontend core to - * manage the frontend and calls dvb_register_device() to register a new - * frontend. It also cleans the property cache that stores the frontend - * parameters and selects the first available delivery system. - */ -int dvb_register_frontend(struct dvb_adapter *dvb, - struct dvb_frontend *fe); - -/** - * dvb_unregister_frontend() - Unregisters a DVB frontend - * - * @fe: pointer to &struct dvb_frontend - * - * Stops the frontend kthread, calls dvb_unregister_device() and frees the - * private frontend data allocated by dvb_register_frontend(). - * - * NOTE: This function doesn't frees the memory allocated by the demod, - * by the SEC driver and by the tuner. In order to free it, an explicit call to - * dvb_frontend_detach() is needed, after calling this function. - */ -int dvb_unregister_frontend(struct dvb_frontend *fe); - -/** - * dvb_frontend_detach() - Detaches and frees frontend specific data - * - * @fe: pointer to &struct dvb_frontend - * - * This function should be called after dvb_unregister_frontend(). It - * calls the SEC, tuner and demod release functions: - * &dvb_frontend_ops.release_sec, &dvb_frontend_ops.tuner_ops.release, - * &dvb_frontend_ops.analog_ops.release and &dvb_frontend_ops.release. - * - * If the driver is compiled with %CONFIG_MEDIA_ATTACH, it also decreases - * the module reference count, needed to allow userspace to remove the - * previously used DVB frontend modules. - */ -void dvb_frontend_detach(struct dvb_frontend *fe); - -/** - * dvb_frontend_suspend() - Suspends a Digital TV frontend - * - * @fe: pointer to &struct dvb_frontend - * - * This function prepares a Digital TV frontend to suspend. - * - * In order to prepare the tuner to suspend, if - * &dvb_frontend_ops.tuner_ops.suspend\(\) is available, it calls it. Otherwise, - * it will call &dvb_frontend_ops.tuner_ops.sleep\(\), if available. - * - * It will also call &dvb_frontend_ops.sleep\(\) to put the demod to suspend. - * - * The drivers should also call dvb_frontend_suspend\(\) as part of their - * handler for the &device_driver.suspend\(\). - */ -int dvb_frontend_suspend(struct dvb_frontend *fe); - -/** - * dvb_frontend_resume() - Resumes a Digital TV frontend - * - * @fe: pointer to &struct dvb_frontend - * - * This function resumes the usual operation of the tuner after resume. - * - * In order to resume the frontend, it calls the demod &dvb_frontend_ops.init\(\). - * - * If &dvb_frontend_ops.tuner_ops.resume\(\) is available, It, it calls it. - * Otherwise,t will call &dvb_frontend_ops.tuner_ops.init\(\), if available. - * - * Once tuner and demods are resumed, it will enforce that the SEC voltage and - * tone are restored to their previous values and wake up the frontend's - * kthread in order to retune the frontend. - * - * The drivers should also call dvb_frontend_resume() as part of their - * handler for the &device_driver.resume\(\). - */ -int dvb_frontend_resume(struct dvb_frontend *fe); - -/** - * dvb_frontend_reinitialise() - forces a reinitialisation at the frontend - * - * @fe: pointer to &struct dvb_frontend - * - * Calls &dvb_frontend_ops.init\(\) and &dvb_frontend_ops.tuner_ops.init\(\), - * and resets SEC tone and voltage (for Satellite systems). - * - * NOTE: Currently, this function is used only by one driver (budget-av). - * It seems to be due to address some special issue with that specific - * frontend. - */ -void dvb_frontend_reinitialise(struct dvb_frontend *fe); - -/** - * dvb_frontend_sleep_until() - Sleep for the amount of time given by - * add_usec parameter - * - * @waketime: pointer to &struct ktime_t - * @add_usec: time to sleep, in microseconds - * - * This function is used to measure the time required for the - * FE_DISHNETWORK_SEND_LEGACY_CMD() ioctl to work. It needs to be as precise - * as possible, as it affects the detection of the dish tone command at the - * satellite subsystem. - * - * Its used internally by the DVB frontend core, in order to emulate - * FE_DISHNETWORK_SEND_LEGACY_CMD() using the &dvb_frontend_ops.set_voltage\(\) - * callback. - * - * NOTE: it should not be used at the drivers, as the emulation for the - * legacy callback is provided by the Kernel. The only situation where this - * should be at the drivers is when there are some bugs at the hardware that - * would prevent the core emulation to work. On such cases, the driver would - * be writing a &dvb_frontend_ops.dishnetwork_send_legacy_command\(\) and - * calling this function directly. - */ -void dvb_frontend_sleep_until(ktime_t *waketime, u32 add_usec); - -#endif |