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Diffstat (limited to 'src/input/ost/frontend.h')
| -rw-r--r-- | src/input/ost/frontend.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/src/input/ost/frontend.h b/src/input/ost/frontend.h new file mode 100644 index 000000000..57fb69e83 --- /dev/null +++ b/src/input/ost/frontend.h @@ -0,0 +1,208 @@ +/* + * frontend.h + * + * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de> + * & Ralph Metzler <ralph@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 _FRONTEND_H_ +#define _FRONTEND_H_ + +#include <asm/types.h> + + +#define ENOSIGNAL 768 +#ifndef EBUFFEROVERFLOW +#define EBUFFEROVERFLOW 769 +#endif + + +typedef __u32 FrontendStatus; + +/* bit definitions for FrontendStatus */ +#define FE_HAS_POWER 1 +#define FE_HAS_SIGNAL 2 +#define FE_SPECTRUM_INV 4 +#define FE_HAS_LOCK 8 +#define FE_HAS_CARRIER 16 +#define FE_HAS_VITERBI 32 +#define FE_HAS_SYNC 64 +#define FE_TUNER_HAS_LOCK 128 + + +/* possible values for spectral inversion */ +typedef enum { + INVERSION_OFF, + INVERSION_ON, + INVERSION_AUTO +} SpectralInversion; + +/* possible values for FEC_inner/FEC_outer */ +typedef enum { + FEC_AUTO, + FEC_1_2, + FEC_2_3, + FEC_3_4, + FEC_5_6, + FEC_7_8, + FEC_NONE +} CodeRate; + + +typedef enum { + QPSK, + QAM_16, + QAM_32, + QAM_64, + QAM_128, + QAM_256 +} Modulation; + + +typedef enum { + TRANSMISSION_MODE_2K, + TRANSMISSION_MODE_8K +} TransmitMode; + +typedef enum { + BANDWIDTH_8_MHZ, + BANDWIDTH_7_MHZ, + BANDWIDTH_6_MHZ +} BandWidth; + + +typedef enum { + GUARD_INTERVAL_1_32, + GUARD_INTERVAL_1_16, + GUARD_INTERVAL_1_8, + GUARD_INTERVAL_1_4 +} GuardInterval; + + +typedef enum { + HIERARCHY_NONE, + HIERARCHY_1, + HIERARCHY_2, + HIERARCHY_4 +} Hierarchy; + + +typedef struct { + __u32 SymbolRate; /* symbol rate in Symbols per second */ + CodeRate FEC_inner; /* forward error correction (see above) */ +} QPSKParameters; + + +typedef struct { + __u32 SymbolRate; /* symbol rate in Symbols per second */ + CodeRate FEC_inner; /* forward error correction (see above) */ + Modulation QAM; /* modulation type (see above) */ +} QAMParameters; + + +typedef struct { + BandWidth bandWidth; + CodeRate HP_CodeRate; /* high priority stream code rate */ + CodeRate LP_CodeRate; /* low priority stream code rate */ + Modulation Constellation; /* modulation type (see above) */ + TransmitMode TransmissionMode; + GuardInterval guardInterval; + Hierarchy HierarchyInformation; +} OFDMParameters; + + +typedef enum { + FE_QPSK, + FE_QAM, + FE_OFDM +} FrontendType; + + +typedef struct { + __u32 Frequency; /* (absolute) frequency in Hz for QAM/OFDM */ + /* intermediate frequency in kHz for QPSK */ + SpectralInversion Inversion; /* spectral inversion */ + union { + QPSKParameters qpsk; + QAMParameters qam; + OFDMParameters ofdm; + } u; +} FrontendParameters; + + +typedef enum { + FE_UNEXPECTED_EV, /* unexpected event (e.g. loss of lock) */ + FE_COMPLETION_EV, /* completion event, tuning succeeded */ + FE_FAILURE_EV /* failure event, we couldn't tune */ +} EventType; + + +typedef struct { + EventType type; /* type of event, FE_UNEXPECTED_EV, ... */ + + long timestamp; /* time in seconds since 1970-01-01 */ + + union { + struct { + FrontendStatus previousStatus; /* status before event */ + FrontendStatus currentStatus; /* status during event */ + } unexpectedEvent; + FrontendParameters completionEvent; /* parameters for which the + tuning succeeded */ + FrontendStatus failureEvent; /* status at failure (e.g. no lock) */ + } u; +} FrontendEvent; + +typedef struct { + FrontendType type; + __u32 minFrequency; + __u32 maxFrequency; + __u32 maxSymbolRate; + __u32 minSymbolRate; + __u32 hwType; + __u32 hwVersion; +} FrontendInfo; + + +typedef enum { + FE_POWER_ON, + FE_POWER_STANDBY, + FE_POWER_SUSPEND, + FE_POWER_OFF +} FrontendPowerState; + + +#define FE_SELFTEST _IO('o', 61) +#define FE_SET_POWER_STATE _IOW('o', 62, FrontendPowerState) +#define FE_GET_POWER_STATE _IOR('o', 63, FrontendPowerState*) +#define FE_READ_STATUS _IOR('o', 64, FrontendStatus*) +#define FE_READ_BER _IOW('o', 65, __u32*) +#define FE_READ_SIGNAL_STRENGTH _IOR('o', 66, __s32*) +#define FE_READ_SNR _IOR('o', 67, __s32*) +#define FE_READ_UNCORRECTED_BLOCKS _IOW('o', 68, __u32*) +#define FE_GET_NEXT_FREQUENCY _IOW('o', 69, __u32*) +#define FE_GET_NEXT_SYMBOL_RATE _IOW('o', 70, __u32*) + +#define FE_SET_FRONTEND _IOW('o', 71, FrontendParameters*) +#define FE_GET_FRONTEND _IOR('o', 72, FrontendParameters*) +#define FE_GET_INFO _IOR('o', 73, FrontendInfo*) +#define FE_GET_EVENT _IOR('o', 74, FrontendEvent*) + +#endif /*_FRONTEND_H_*/ + |