/* * 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/bitops.h> #include <linux/dvb/frontend.h> #include <media/dvbdev.h> /* * Maximum number of Delivery systems per frontend. It * should be smaller or equal to 32 */#define MAX_DELSYS 8 /* Helper definitions to be used at frontend drivers */#define kHz 1000UL#define MHz 1000000UL /** * 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_hz: minimal frequency supported in Hz * @frequency_max_hz: maximum frequency supported in Hz * @frequency_step_hz: frequency step in Hz * @bandwidth_min: minimal frontend bandwidth supported * @bandwidth_max: maximum frontend bandwidth supported * @bandwidth_step: frontend bandwidth step */struct dvb_tuner_info { char name[128]; u32 frequency_min_hz; u32 frequency_max_hz; u32 frequency_step_hz; 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 = BIT(0), DVBFE_ALGO_SW = BIT(1), DVBFE_ALGO_CUSTOM = BIT(2), DVBFE_ALGO_RECOVERY = BIT(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 algorithm 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 = BIT(0), DVBFE_ALGO_SEARCH_ASLEEP = BIT(1), DVBFE_ALGO_SEARCH_FAILED = BIT(2), DVBFE_ALGO_SEARCH_INVALID = BIT(3), DVBFE_ALGO_SEARCH_AGAIN = BIT(4), DVBFE_ALGO_SEARCH_ERROR = BIT(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 bandwidth 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 recommended 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_internal_info - Frontend properties and capabilities * * @name: Name of the frontend * @frequency_min_hz: Minimal frequency supported by the frontend. * @frequency_max_hz: Minimal frequency supported by the frontend. * @frequency_stepsize_hz: All frequencies are multiple of this value. * @frequency_tolerance_hz: Frequency tolerance. * @symbol_rate_min: Minimal symbol rate, in bauds * (for Cable/Satellite systems). * @symbol_rate_max: Maximal symbol rate, in bauds * (for Cable/Satellite systems). * @symbol_rate_tolerance: Maximal symbol rate tolerance, in ppm * (for Cable/Satellite systems). * @caps: Capabilities supported by the frontend, * as specified in &enum fe_caps. */struct dvb_frontend_internal_info { char name[128]; u32 frequency_min_hz; u32 frequency_max_hz; u32 frequency_stepsize_hz; u32 frequency_tolerance_hz; u32 symbol_rate_min; u32 symbol_rate_max; u32 symbol_rate_tolerance; enum fe_caps caps;}; /** * 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 Satellite 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. * @suspend: callback function used to inform that the Kernel will * suspend. * @resume: callback function used to inform that the Kernel is * resuming from suspend. * @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_internal_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 (*suspend)(struct dvb_frontend *fe); int (*resume)(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;};Lines 1–500 of 834. 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/* * 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/bitops.h> #include <linux/dvb/frontend.h> #include <media/dvbdev.h> /* * Maximum number of Delivery systems per frontend. It * should be smaller or equal to 32 */ #define MAX_DELSYS 8 /* Helper definitions to be used at frontend drivers */ #define kHz 1000UL #define MHz 1000000UL /** * 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_hz: minimal frequency supported in Hz * @frequency_max_hz: maximum frequency supported in Hz * @frequency_step_hz: frequency step in Hz * @bandwidth_min: minimal frontend bandwidth supported * @bandwidth_max: maximum frontend bandwidth supported * @bandwidth_step: frontend bandwidth step */ struct dvb_tuner_info { char name[128]; u32 frequency_min_hz; u32 frequency_max_hz; u32 frequency_step_hz; 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 = BIT(0), DVBFE_ALGO_SW = BIT(1), DVBFE_ALGO_CUSTOM = BIT(2), DVBFE_ALGO_RECOVERY = BIT(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 algorithm 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 = BIT(0), DVBFE_ALGO_SEARCH_ASLEEP = BIT(1), DVBFE_ALGO_SEARCH_FAILED = BIT(2), DVBFE_ALGO_SEARCH_INVALID = BIT(3), DVBFE_ALGO_SEARCH_AGAIN = BIT(4), DVBFE_ALGO_SEARCH_ERROR = BIT(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 bandwidth 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 recommended 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_internal_info - Frontend properties and capabilities * * @name: Name of the frontend * @frequency_min_hz: Minimal frequency supported by the frontend. * @frequency_max_hz: Minimal frequency supported by the frontend. * @frequency_stepsize_hz: All frequencies are multiple of this value. * @frequency_tolerance_hz: Frequency tolerance. * @symbol_rate_min: Minimal symbol rate, in bauds * (for Cable/Satellite systems). * @symbol_rate_max: Maximal symbol rate, in bauds * (for Cable/Satellite systems). * @symbol_rate_tolerance: Maximal symbol rate tolerance, in ppm * (for Cable/Satellite systems). * @caps: Capabilities supported by the frontend, * as specified in &enum fe_caps. */ struct dvb_frontend_internal_info { char name[128]; u32 frequency_min_hz; u32 frequency_max_hz; u32 frequency_stepsize_hz; u32 frequency_tolerance_hz; u32 symbol_rate_min; u32 symbol_rate_max; u32 symbol_rate_tolerance; enum fe_caps caps; }; /** * 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 Satellite 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. * @suspend: callback function used to inform that the Kernel will * suspend. * @resume: callback function used to inform that the Kernel is * resuming from suspend. * @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_internal_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 (*suspend)(struct dvb_frontend *fe); int (*resume)(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; };