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/*
* frontend.h
*
* Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>
* Ralph Metzler <ralph@convergence.de>
* Holger Waechtler <holger@convergence.de>
* Andre Draszik <ad@convergence.de>
* for convergence integrated media GmbH
*
* 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 _DVBFRONTEND_H_
#define _DVBFRONTEND_H_
#include <asm/types.h>
typedef enum fe_type {
FE_QPSK,
FE_QAM,
FE_OFDM
} fe_type_t;
typedef enum fe_caps {
FE_IS_STUPID = 0,
FE_CAN_INVERSION_AUTO = 0x1,
FE_CAN_FEC_1_2 = 0x2,
FE_CAN_FEC_2_3 = 0x4,
FE_CAN_FEC_3_4 = 0x8,
FE_CAN_FEC_4_5 = 0x10,
FE_CAN_FEC_5_6 = 0x20,
FE_CAN_FEC_6_7 = 0x40,
FE_CAN_FEC_7_8 = 0x80,
FE_CAN_FEC_8_9 = 0x100,
FE_CAN_FEC_AUTO = 0x200,
FE_CAN_QPSK = 0x400,
FE_CAN_QAM_16 = 0x800,
FE_CAN_QAM_32 = 0x1000,
FE_CAN_QAM_64 = 0x2000,
FE_CAN_QAM_128 = 0x4000,
FE_CAN_QAM_256 = 0x8000,
FE_CAN_QAM_AUTO = 0x10000,
FE_CAN_TRANSMISSION_MODE_AUTO = 0x20000,
FE_CAN_BANDWIDTH_AUTO = 0x40000,
FE_CAN_GUARD_INTERVAL_AUTO = 0x80000,
FE_CAN_HIERARCHY_AUTO = 0x100000,
FE_CAN_RECOVER = 0x20000000,
FE_CAN_CLEAN_SETUP = 0x40000000,
FE_CAN_MUTE_TS = 0x80000000
} fe_caps_t;
struct dvb_frontend_info {
char name[128];
fe_type_t type;
__u32 frequency_min;
__u32 frequency_max;
__u32 frequency_stepsize;
__u32 frequency_tolerance;
__u32 symbol_rate_min;
__u32 symbol_rate_max;
__u32 symbol_rate_tolerance; /* ppm */
__u32 notifier_delay; /* ms */
fe_caps_t caps;
};
/**
* Check out the DiSEqC bus spec available on http://www.eutelsat.org/ for
* the meaning of this struct...
*/
struct dvb_diseqc_master_cmd {
__u8 msg [6]; /* { framing, address, command, data [3] } */
__u8 msg_len; /* valid values are 3...6 */
};
struct dvb_diseqc_slave_reply {
__u8 msg [4]; /* { framing, data [3] } */
__u8 msg_len; /* valid values are 0...4, 0 means no msg */
int timeout; /* return from ioctl after timeout ms with */
}; /* errorcode when no message was received */
typedef enum fe_sec_voltage {
SEC_VOLTAGE_13,
SEC_VOLTAGE_18,
SEC_VOLTAGE_OFF
} fe_sec_voltage_t;
typedef enum fe_sec_tone_mode {
SEC_TONE_ON,
SEC_TONE_OFF
} fe_sec_tone_mode_t;
typedef enum fe_sec_mini_cmd {
SEC_MINI_A,
SEC_MINI_B
} fe_sec_mini_cmd_t;
typedef enum fe_status {
FE_HAS_SIGNAL = 0x01, /* found something above the noise level */
FE_HAS_CARRIER = 0x02, /* found a DVB signal */
FE_HAS_VITERBI = 0x04, /* FEC is stable */
FE_HAS_SYNC = 0x08, /* found sync bytes */
FE_HAS_LOCK = 0x10, /* everything's working... */
FE_TIMEDOUT = 0x20, /* no lock within the last ~2 seconds */
FE_REINIT = 0x40 /* frontend was reinitialized, */
} fe_status_t; /* application is recommended to reset */
/* DiSEqC, tone and parameters */
typedef enum fe_spectral_inversion {
INVERSION_OFF,
INVERSION_ON,
INVERSION_AUTO
} fe_spectral_inversion_t;
typedef enum fe_code_rate {
FEC_NONE = 0,
FEC_1_2,
FEC_2_3,
FEC_3_4,
FEC_4_5,
FEC_5_6,
FEC_6_7,
FEC_7_8,
FEC_8_9,
FEC_AUTO
} fe_code_rate_t;
typedef enum fe_modulation {
QPSK,
QAM_16,
QAM_32,
QAM_64,
QAM_128,
QAM_256,
QAM_AUTO
} fe_modulation_t;
typedef enum fe_transmit_mode {
TRANSMISSION_MODE_2K,
TRANSMISSION_MODE_8K,
TRANSMISSION_MODE_AUTO
} fe_transmit_mode_t;
typedef enum fe_bandwidth {
BANDWIDTH_8_MHZ,
BANDWIDTH_7_MHZ,
BANDWIDTH_6_MHZ,
BANDWIDTH_AUTO
} fe_bandwidth_t;
typedef enum fe_guard_interval {
GUARD_INTERVAL_1_32,
GUARD_INTERVAL_1_16,
GUARD_INTERVAL_1_8,
GUARD_INTERVAL_1_4,
GUARD_INTERVAL_AUTO
} fe_guard_interval_t;
typedef enum fe_hierarchy {
HIERARCHY_NONE,
HIERARCHY_1,
HIERARCHY_2,
HIERARCHY_4,
HIERARCHY_AUTO
} fe_hierarchy_t;
struct dvb_qpsk_parameters {
__u32 symbol_rate; /* symbol rate in Symbols per second */
fe_code_rate_t fec_inner; /* forward error correction (see above) */
};
struct dvb_qam_parameters {
__u32 symbol_rate; /* symbol rate in Symbols per second */
fe_code_rate_t fec_inner; /* forward error correction (see above) */
fe_modulation_t modulation; /* modulation type (see above) */
};
struct dvb_ofdm_parameters {
fe_bandwidth_t bandwidth;
fe_code_rate_t code_rate_HP; /* high priority stream code rate */
fe_code_rate_t code_rate_LP; /* low priority stream code rate */
fe_modulation_t constellation; /* modulation type (see above) */
fe_transmit_mode_t transmission_mode;
fe_guard_interval_t guard_interval;
fe_hierarchy_t hierarchy_information;
};
struct dvb_frontend_parameters {
__u32 frequency; /* (absolute) frequency in Hz for QAM/OFDM */
/* intermediate frequency in kHz for QPSK */
fe_spectral_inversion_t inversion;
union {
struct dvb_qpsk_parameters qpsk;
struct dvb_qam_parameters qam;
struct dvb_ofdm_parameters ofdm;
} u;
};
struct dvb_frontend_event {
fe_status_t status;
struct dvb_frontend_parameters parameters;
};
#define FE_GET_INFO _IOR('o', 61, struct dvb_frontend_info)
#define FE_DISEQC_RESET_OVERLOAD _IO('o', 62)
#define FE_DISEQC_SEND_MASTER_CMD _IOW('o', 63, struct dvb_diseqc_master_cmd)
#define FE_DISEQC_RECV_SLAVE_REPLY _IOR('o', 64, struct dvb_diseqc_slave_reply)
#define FE_DISEQC_SEND_BURST _IO('o', 65) /* fe_sec_mini_cmd_t */
#define FE_SET_TONE _IO('o', 66) /* fe_sec_tone_mode_t */
#define FE_SET_VOLTAGE _IO('o', 67) /* fe_sec_voltage_t */
#define FE_ENABLE_HIGH_LNB_VOLTAGE _IO('o', 68) /* int */
#define FE_READ_STATUS _IOR('o', 69, fe_status_t)
#define FE_READ_BER _IOR('o', 70, __u32)
#define FE_READ_SIGNAL_STRENGTH _IOR('o', 71, __u16)
#define FE_READ_SNR _IOR('o', 72, __u16)
#define FE_READ_UNCORRECTED_BLOCKS _IOR('o', 73, __u32)
#define FE_SET_FRONTEND _IOW('o', 76, struct dvb_frontend_parameters)
#define FE_GET_FRONTEND _IOR('o', 77, struct dvb_frontend_parameters)
#define FE_GET_EVENT _IOR('o', 78, struct dvb_frontend_event)
#endif /*_DVBFRONTEND_H_*/