*/
#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;
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 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;
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_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)
- * ----------------------------------------------------------------
+/**
+ * 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
*
- * 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
+ * @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),
u32 refclock;
};
-/*
- * search callback possible return status
+/**
+ * enum dvbfe_search - search callback possible return status
*
- * DVBFE_ALGO_SEARCH_SUCCESS
- * The frontend search algorithm completed and returned successfully
+ * @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_ASLEEP:
+ * The frontend search algorithm is sleeping
*
- * DVBFE_ALGO_SEARCH_FAILED
- * The frontend search for a signal failed
+ * @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_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_ERROR:
+ * The frontend search algorithm failed due to some error
*
- * DVBFE_ALGO_SEARCH_AGAIN
- * The frontend search algorithm was requested to search again
+ * @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_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 dettached.
+ * 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 @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.
+ * @calc_regs: callback function used to pass register data settings
+ * for simple tuners.
+ * @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 strengh. Used mostly to support
+ * analog TV and radio. Digital TV should report, instead,
+ * via DVBv5 API (@dvb_frontend.dtv_property_cache;).
+ * @get_afc: Used only by analog TV core. Reports the frequency
+ * drift due to AFC.
+ * @set_frequency: Set a new frequency. Please notice that using
+ * set_params is preferred.
+ * @set_bandwidth: Set a new frequency. Please notice that using
+ * set_params is preferred.
+ * @set_state: callback function used on some legacy drivers that
+ * don't implement set_params in order to set properties.
+ * Shouldn't be used on new drivers.
+ * @get_state: callback function used to get properties by some
+ * legacy drivers that don't implement set_params.
+ * Shouldn't be used on new 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;
int (*get_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
};
+/**
+ * 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 dettached.
+ * 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;
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
+ * @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 (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).
+ * @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;
bool re_tune,
unsigned int mode_flags,
unsigned int *delay,
- fe_status_t *status);
+ enum fe_status *status);
+
/* get frontend tuning algorithm from the module */
enum dvbfe_algo (*get_frontend_algo)(struct dvb_frontend *fe);
int (*get_frontend)(struct dvb_frontend *fe);
- int (*read_status)(struct dvb_frontend* fe, fe_status_t* status);
+ 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 (*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 (*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);
#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;
};
#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 {
-
- /* Cache State */
- u32 state;
-
u32 frequency;
- fe_modulation_t modulation;
+ enum fe_modulation 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;
+ 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 */
- fe_guard_interval_t guard_interval;
- fe_hierarchy_t hierarchy;
+ enum fe_guard_interval guard_interval;
+ enum fe_hierarchy hierarchy;
u32 symbol_rate;
- fe_code_rate_t code_rate_HP;
- fe_code_rate_t code_rate_LP;
+ enum fe_code_rate code_rate_HP;
+ enum fe_code_rate code_rate_LP;
- fe_pilot_t pilot;
- fe_rolloff_t rolloff;
+ enum fe_pilot pilot;
+ enum fe_rolloff rolloff;
- fe_delivery_system_t delivery_system;
+ enum fe_delivery_system delivery_system;
enum fe_interleaving interleaving;
u8 isdbt_layer_enabled;
struct {
u8 segment_count;
- fe_code_rate_t fec;
- fe_modulation_t modulation;
+ enum fe_code_rate fec;
+ enum fe_modulation modulation;
u8 interleaving;
} layer[3];
struct dtv_fe_stats post_bit_count;
struct dtv_fe_stats block_error;
struct dtv_fe_stats block_count;
+
+ /* private: */
+ /* Cache State */
+ u32 state;
+
};
#define DVB_FE_NO_EXIT 0
#define DVB_FE_DEVICE_REMOVED 2
#define DVB_FE_DEVICE_RESUME 3
+/**
+ * struct dvb_frontend - Frontend structure to be used on drivers.
+ *
+ * @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 dvb_frontend_ops ops;
struct dvb_adapter *dvb;
extern int dvb_frontend_suspend(struct dvb_frontend *fe);
extern int dvb_frontend_resume(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);
+extern void dvb_frontend_sleep_until(ktime_t *waketime, u32 add_usec);
#endif
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