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![Andrew de Quincey](/assets/img/avatar_default.png)
- Implement frontend-specific tuning and the ability to disable zigzag Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
277 lines
7.5 KiB
C
277 lines
7.5 KiB
C
/*
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* frontend.h
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*
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* Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>
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* Ralph Metzler <ralph@convergence.de>
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* Holger Waechtler <holger@convergence.de>
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* Andre Draszik <ad@convergence.de>
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* for convergence integrated media GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _DVBFRONTEND_H_
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#define _DVBFRONTEND_H_
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#include <asm/types.h>
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typedef enum fe_type {
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FE_QPSK,
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FE_QAM,
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FE_OFDM,
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FE_ATSC
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} fe_type_t;
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typedef enum fe_caps {
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FE_IS_STUPID = 0,
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FE_CAN_INVERSION_AUTO = 0x1,
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FE_CAN_FEC_1_2 = 0x2,
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FE_CAN_FEC_2_3 = 0x4,
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FE_CAN_FEC_3_4 = 0x8,
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FE_CAN_FEC_4_5 = 0x10,
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FE_CAN_FEC_5_6 = 0x20,
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FE_CAN_FEC_6_7 = 0x40,
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FE_CAN_FEC_7_8 = 0x80,
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FE_CAN_FEC_8_9 = 0x100,
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FE_CAN_FEC_AUTO = 0x200,
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FE_CAN_QPSK = 0x400,
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FE_CAN_QAM_16 = 0x800,
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FE_CAN_QAM_32 = 0x1000,
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FE_CAN_QAM_64 = 0x2000,
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FE_CAN_QAM_128 = 0x4000,
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FE_CAN_QAM_256 = 0x8000,
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FE_CAN_QAM_AUTO = 0x10000,
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FE_CAN_TRANSMISSION_MODE_AUTO = 0x20000,
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FE_CAN_BANDWIDTH_AUTO = 0x40000,
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FE_CAN_GUARD_INTERVAL_AUTO = 0x80000,
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FE_CAN_HIERARCHY_AUTO = 0x100000,
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FE_CAN_8VSB = 0x200000,
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FE_CAN_16VSB = 0x400000,
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FE_NEEDS_BENDING = 0x20000000, // not supported anymore, don't use (frontend requires frequency bending)
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FE_CAN_RECOVER = 0x40000000, // frontend can recover from a cable unplug automatically
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FE_CAN_MUTE_TS = 0x80000000 // frontend can stop spurious TS data output
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} fe_caps_t;
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struct dvb_frontend_info {
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char name[128];
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fe_type_t type;
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__u32 frequency_min;
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__u32 frequency_max;
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__u32 frequency_stepsize;
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__u32 frequency_tolerance;
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__u32 symbol_rate_min;
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__u32 symbol_rate_max;
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__u32 symbol_rate_tolerance; /* ppm */
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__u32 notifier_delay; /* DEPRECATED */
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fe_caps_t caps;
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};
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/**
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* Check out the DiSEqC bus spec available on http://www.eutelsat.org/ for
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* the meaning of this struct...
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*/
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struct dvb_diseqc_master_cmd {
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__u8 msg [6]; /* { framing, address, command, data [3] } */
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__u8 msg_len; /* valid values are 3...6 */
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};
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struct dvb_diseqc_slave_reply {
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__u8 msg [4]; /* { framing, data [3] } */
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__u8 msg_len; /* valid values are 0...4, 0 means no msg */
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int timeout; /* return from ioctl after timeout ms with */
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}; /* errorcode when no message was received */
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typedef enum fe_sec_voltage {
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SEC_VOLTAGE_13,
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SEC_VOLTAGE_18,
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SEC_VOLTAGE_OFF
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} fe_sec_voltage_t;
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typedef enum fe_sec_tone_mode {
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SEC_TONE_ON,
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SEC_TONE_OFF
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} fe_sec_tone_mode_t;
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typedef enum fe_sec_mini_cmd {
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SEC_MINI_A,
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SEC_MINI_B
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} fe_sec_mini_cmd_t;
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typedef enum fe_status {
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FE_HAS_SIGNAL = 0x01, /* found something above the noise level */
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FE_HAS_CARRIER = 0x02, /* found a DVB signal */
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FE_HAS_VITERBI = 0x04, /* FEC is stable */
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FE_HAS_SYNC = 0x08, /* found sync bytes */
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FE_HAS_LOCK = 0x10, /* everything's working... */
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FE_TIMEDOUT = 0x20, /* no lock within the last ~2 seconds */
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FE_REINIT = 0x40 /* frontend was reinitialized, */
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} fe_status_t; /* application is recommended to reset */
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/* DiSEqC, tone and parameters */
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typedef enum fe_spectral_inversion {
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INVERSION_OFF,
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INVERSION_ON,
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INVERSION_AUTO
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} fe_spectral_inversion_t;
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typedef enum fe_code_rate {
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FEC_NONE = 0,
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FEC_1_2,
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FEC_2_3,
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FEC_3_4,
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FEC_4_5,
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FEC_5_6,
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FEC_6_7,
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FEC_7_8,
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FEC_8_9,
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FEC_AUTO
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} fe_code_rate_t;
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typedef enum fe_modulation {
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QPSK,
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QAM_16,
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QAM_32,
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QAM_64,
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QAM_128,
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QAM_256,
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QAM_AUTO,
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VSB_8,
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VSB_16
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} fe_modulation_t;
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typedef enum fe_transmit_mode {
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TRANSMISSION_MODE_2K,
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TRANSMISSION_MODE_8K,
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TRANSMISSION_MODE_AUTO
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} fe_transmit_mode_t;
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typedef enum fe_bandwidth {
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BANDWIDTH_8_MHZ,
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BANDWIDTH_7_MHZ,
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BANDWIDTH_6_MHZ,
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BANDWIDTH_AUTO
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} fe_bandwidth_t;
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typedef enum fe_guard_interval {
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GUARD_INTERVAL_1_32,
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GUARD_INTERVAL_1_16,
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GUARD_INTERVAL_1_8,
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GUARD_INTERVAL_1_4,
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GUARD_INTERVAL_AUTO
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} fe_guard_interval_t;
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typedef enum fe_hierarchy {
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HIERARCHY_NONE,
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HIERARCHY_1,
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HIERARCHY_2,
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HIERARCHY_4,
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HIERARCHY_AUTO
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} fe_hierarchy_t;
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struct dvb_qpsk_parameters {
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__u32 symbol_rate; /* symbol rate in Symbols per second */
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fe_code_rate_t fec_inner; /* forward error correction (see above) */
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};
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struct dvb_qam_parameters {
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__u32 symbol_rate; /* symbol rate in Symbols per second */
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fe_code_rate_t fec_inner; /* forward error correction (see above) */
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fe_modulation_t modulation; /* modulation type (see above) */
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};
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struct dvb_vsb_parameters {
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fe_modulation_t modulation; /* modulation type (see above) */
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};
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struct dvb_ofdm_parameters {
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fe_bandwidth_t bandwidth;
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fe_code_rate_t code_rate_HP; /* high priority stream code rate */
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fe_code_rate_t code_rate_LP; /* low priority stream code rate */
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fe_modulation_t constellation; /* modulation type (see above) */
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fe_transmit_mode_t transmission_mode;
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fe_guard_interval_t guard_interval;
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fe_hierarchy_t hierarchy_information;
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};
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struct dvb_frontend_parameters {
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__u32 frequency; /* (absolute) frequency in Hz for QAM/OFDM/ATSC */
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/* intermediate frequency in kHz for QPSK */
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fe_spectral_inversion_t inversion;
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union {
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struct dvb_qpsk_parameters qpsk;
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struct dvb_qam_parameters qam;
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struct dvb_ofdm_parameters ofdm;
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struct dvb_vsb_parameters vsb;
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} u;
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};
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struct dvb_frontend_event {
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fe_status_t status;
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struct dvb_frontend_parameters parameters;
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};
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/**
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* When set, this flag will disable any zigzagging or other "normal" tuning
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* behaviour. Additionally, there will be no automatic monitoring of the lock
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* status, and hence no frontend events will be generated. If a frontend device
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* is closed, this flag will be automatically turned off when the device is
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* reopened read-write.
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*/
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#define FE_TUNE_MODE_ONESHOT 0x01
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#define FE_GET_INFO _IOR('o', 61, struct dvb_frontend_info)
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#define FE_DISEQC_RESET_OVERLOAD _IO('o', 62)
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#define FE_DISEQC_SEND_MASTER_CMD _IOW('o', 63, struct dvb_diseqc_master_cmd)
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#define FE_DISEQC_RECV_SLAVE_REPLY _IOR('o', 64, struct dvb_diseqc_slave_reply)
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#define FE_DISEQC_SEND_BURST _IO('o', 65) /* fe_sec_mini_cmd_t */
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#define FE_SET_TONE _IO('o', 66) /* fe_sec_tone_mode_t */
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#define FE_SET_VOLTAGE _IO('o', 67) /* fe_sec_voltage_t */
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#define FE_ENABLE_HIGH_LNB_VOLTAGE _IO('o', 68) /* int */
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#define FE_READ_STATUS _IOR('o', 69, fe_status_t)
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#define FE_READ_BER _IOR('o', 70, __u32)
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#define FE_READ_SIGNAL_STRENGTH _IOR('o', 71, __u16)
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#define FE_READ_SNR _IOR('o', 72, __u16)
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#define FE_READ_UNCORRECTED_BLOCKS _IOR('o', 73, __u32)
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#define FE_SET_FRONTEND _IOW('o', 76, struct dvb_frontend_parameters)
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#define FE_GET_FRONTEND _IOR('o', 77, struct dvb_frontend_parameters)
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#define FE_SET_FRONTEND_TUNE_MODE _IO('o', 81) /* unsigned int */
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#define FE_GET_EVENT _IOR('o', 78, struct dvb_frontend_event)
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#define FE_DISHNETWORK_SEND_LEGACY_CMD _IO('o', 80) /* unsigned int */
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#endif /*_DVBFRONTEND_H_*/
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