diff options
Diffstat (limited to 'drivers/media/dvb-core')
| -rw-r--r-- | drivers/media/dvb-core/dvb_frontend.h | 86 |
1 files changed, 85 insertions, 1 deletions
diff --git a/drivers/media/dvb-core/dvb_frontend.h b/drivers/media/dvb-core/dvb_frontend.h index c6c85e6e9874..115995958da6 100644 --- a/drivers/media/dvb-core/dvb_frontend.h +++ b/drivers/media/dvb-core/dvb_frontend.h @@ -206,7 +206,10 @@ enum dvbfe_search { * 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 @dvb_frontend.dtv_property_cache;. + * are stored at @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. * @set_analog_params: callback function used to tune into an analog TV * channel on hybrid tuners. It passes @analog_parameters; * to the driver. @@ -332,6 +335,86 @@ struct analog_demod_ops { struct dtv_frontend_properties; + +/** + * struct dvb_frontend_ops + * + * @info: embedded struct dvb_tuner_info with tuner properties + * @delsys: Delivery systems supported by the frontend + * @release: callback function called when frontend is dettached. + * 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 + * @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 + * @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. + * @diseqc_send_master_cmd: callback function to implement the + * FE_DISEQC_SEND_MASTER_CMD ioctl. + * @diseqc_recv_slave_reply: callback function to implement the + * FE_DISEQC_RECV_SLAVE_REPLY ioctl. + * @diseqc_send_burst: callback function to implement the + * FE_DISEQC_SEND_BURST ioctl. + * @set_tone: callback function to implement the + * FE_SET_TONE ioctl. + * @set_voltage: callback function to implement the + * FE_SET_VOLTAGE ioctl. + * @enable_high_lnb_voltage: callback function to implement the + * FE_ENABLE_HIGH_LNB_VOLTAGE ioctl. + * @dishnetwork_send_legacy_command: callback function to implement the + * FE_DISHNETWORK_SEND_LEGACY_CMD ioctl. + * @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 + * @set_property: callback function to allow the frontend to validade + * incoming properties. Should not be used on new drivers. + * @get_property: callback function to allow the frontend to override + * outcoming properties. Should not be used on new drivers. + */ struct dvb_frontend_ops { struct dvb_frontend_info info; @@ -352,6 +435,7 @@ struct dvb_frontend_ops { 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); |
