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      1 /*
      2  * frontend.h
      3  *
      4  * Copyright (C) 2000 Marcus Metzler <marcus (at) convergence.de>
      5  *		    Ralph  Metzler <ralph (at) convergence.de>
      6  *		    Holger Waechtler <holger (at) convergence.de>
      7  *		    Andre Draszik <ad (at) convergence.de>
      8  *		    for convergence integrated media GmbH
      9  *
     10  * This program is free software; you can redistribute it and/or
     11  * modify it under the terms of the GNU Lesser General Public License
     12  * as published by the Free Software Foundation; either version 2.1
     13  * of the License, or (at your option) any later version.
     14  *
     15  * This program is distributed in the hope that it will be useful,
     16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     18  * GNU General Public License for more details.
     19  *
     20  * You should have received a copy of the GNU Lesser General Public License
     21  * along with this program; if not, write to the Free Software
     22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
     23  *
     24  */
     25 
     26 #ifndef _DVBFRONTEND_H_
     27 #define _DVBFRONTEND_H_
     28 
     29 #include <linux/types.h>
     30 
     31 enum fe_type {
     32 	FE_QPSK,
     33 	FE_QAM,
     34 	FE_OFDM,
     35 	FE_ATSC
     36 };
     37 
     38 enum fe_caps {
     39 	FE_IS_STUPID			= 0,
     40 	FE_CAN_INVERSION_AUTO		= 0x1,
     41 	FE_CAN_FEC_1_2			= 0x2,
     42 	FE_CAN_FEC_2_3			= 0x4,
     43 	FE_CAN_FEC_3_4			= 0x8,
     44 	FE_CAN_FEC_4_5			= 0x10,
     45 	FE_CAN_FEC_5_6			= 0x20,
     46 	FE_CAN_FEC_6_7			= 0x40,
     47 	FE_CAN_FEC_7_8			= 0x80,
     48 	FE_CAN_FEC_8_9			= 0x100,
     49 	FE_CAN_FEC_AUTO			= 0x200,
     50 	FE_CAN_QPSK			= 0x400,
     51 	FE_CAN_QAM_16			= 0x800,
     52 	FE_CAN_QAM_32			= 0x1000,
     53 	FE_CAN_QAM_64			= 0x2000,
     54 	FE_CAN_QAM_128			= 0x4000,
     55 	FE_CAN_QAM_256			= 0x8000,
     56 	FE_CAN_QAM_AUTO			= 0x10000,
     57 	FE_CAN_TRANSMISSION_MODE_AUTO	= 0x20000,
     58 	FE_CAN_BANDWIDTH_AUTO		= 0x40000,
     59 	FE_CAN_GUARD_INTERVAL_AUTO	= 0x80000,
     60 	FE_CAN_HIERARCHY_AUTO		= 0x100000,
     61 	FE_CAN_8VSB			= 0x200000,
     62 	FE_CAN_16VSB			= 0x400000,
     63 	FE_HAS_EXTENDED_CAPS		= 0x800000,   /* We need more bitspace for newer APIs, indicate this. */
     64 	FE_CAN_MULTISTREAM		= 0x4000000,  /* frontend supports multistream filtering */
     65 	FE_CAN_TURBO_FEC		= 0x8000000,  /* frontend supports "turbo fec modulation" */
     66 	FE_CAN_2G_MODULATION		= 0x10000000, /* frontend supports "2nd generation modulation" (DVB-S2) */
     67 	FE_NEEDS_BENDING		= 0x20000000, /* not supported anymore, don't use (frontend requires frequency bending) */
     68 	FE_CAN_RECOVER			= 0x40000000, /* frontend can recover from a cable unplug automatically */
     69 	FE_CAN_MUTE_TS			= 0x80000000  /* frontend can stop spurious TS data output */
     70 };
     71 
     72 struct dvb_frontend_info {
     73 	char       name[128];
     74 	enum fe_type type;	/* DEPRECATED. Use DTV_ENUM_DELSYS instead */
     75 	__u32      frequency_min;
     76 	__u32      frequency_max;
     77 	__u32      frequency_stepsize;
     78 	__u32      frequency_tolerance;
     79 	__u32      symbol_rate_min;
     80 	__u32      symbol_rate_max;
     81 	__u32      symbol_rate_tolerance;	/* ppm */
     82 	__u32      notifier_delay;		/* DEPRECATED */
     83 	enum fe_caps caps;
     84 };
     85 
     86 
     87 /**
     88  *  Check out the DiSEqC bus spec available on http://www.eutelsat.org/ for
     89  *  the meaning of this struct...
     90  */
     91 struct dvb_diseqc_master_cmd {
     92 	__u8 msg [6];	/*  { framing, address, command, data [3] } */
     93 	__u8 msg_len;	/*  valid values are 3...6  */
     94 };
     95 
     96 struct dvb_diseqc_slave_reply {
     97 	__u8 msg [4];	/*  { framing, data [3] } */
     98 	__u8 msg_len;	/*  valid values are 0...4, 0 means no msg  */
     99 	int  timeout;	/*  return from ioctl after timeout ms with */
    100 };			/*  errorcode when no message was received  */
    101 
    102 enum fe_sec_voltage {
    103 	SEC_VOLTAGE_13,
    104 	SEC_VOLTAGE_18,
    105 	SEC_VOLTAGE_OFF
    106 };
    107 
    108 enum fe_sec_tone_mode {
    109 	SEC_TONE_ON,
    110 	SEC_TONE_OFF
    111 };
    112 
    113 enum fe_sec_mini_cmd {
    114 	SEC_MINI_A,
    115 	SEC_MINI_B
    116 };
    117 
    118 /**
    119  * enum fe_status - enumerates the possible frontend status
    120  * @FE_HAS_SIGNAL:	found something above the noise level
    121  * @FE_HAS_CARRIER:	found a DVB signal
    122  * @FE_HAS_VITERBI:	FEC is stable
    123  * @FE_HAS_SYNC:	found sync bytes
    124  * @FE_HAS_LOCK:	everything's working
    125  * @FE_TIMEDOUT:	no lock within the last ~2 seconds
    126  * @FE_REINIT:		frontend was reinitialized, application is recommended
    127  *			to reset DiSEqC, tone and parameters
    128  */
    129 enum fe_status {
    130 	FE_HAS_SIGNAL		= 0x01,
    131 	FE_HAS_CARRIER		= 0x02,
    132 	FE_HAS_VITERBI		= 0x04,
    133 	FE_HAS_SYNC		= 0x08,
    134 	FE_HAS_LOCK		= 0x10,
    135 	FE_TIMEDOUT		= 0x20,
    136 	FE_REINIT		= 0x40,
    137 };
    138 
    139 enum fe_spectral_inversion {
    140 	INVERSION_OFF,
    141 	INVERSION_ON,
    142 	INVERSION_AUTO
    143 };
    144 
    145 enum fe_code_rate {
    146 	FEC_NONE = 0,
    147 	FEC_1_2,
    148 	FEC_2_3,
    149 	FEC_3_4,
    150 	FEC_4_5,
    151 	FEC_5_6,
    152 	FEC_6_7,
    153 	FEC_7_8,
    154 	FEC_8_9,
    155 	FEC_AUTO,
    156 	FEC_3_5,
    157 	FEC_9_10,
    158 	FEC_2_5,
    159 };
    160 
    161 enum fe_modulation {
    162 	QPSK,
    163 	QAM_16,
    164 	QAM_32,
    165 	QAM_64,
    166 	QAM_128,
    167 	QAM_256,
    168 	QAM_AUTO,
    169 	VSB_8,
    170 	VSB_16,
    171 	PSK_8,
    172 	APSK_16,
    173 	APSK_32,
    174 	DQPSK,
    175 	QAM_4_NR,
    176 };
    177 
    178 enum fe_transmit_mode {
    179 	TRANSMISSION_MODE_2K,
    180 	TRANSMISSION_MODE_8K,
    181 	TRANSMISSION_MODE_AUTO,
    182 	TRANSMISSION_MODE_4K,
    183 	TRANSMISSION_MODE_1K,
    184 	TRANSMISSION_MODE_16K,
    185 	TRANSMISSION_MODE_32K,
    186 	TRANSMISSION_MODE_C1,
    187 	TRANSMISSION_MODE_C3780,
    188 };
    189 
    190 enum fe_guard_interval {
    191 	GUARD_INTERVAL_1_32,
    192 	GUARD_INTERVAL_1_16,
    193 	GUARD_INTERVAL_1_8,
    194 	GUARD_INTERVAL_1_4,
    195 	GUARD_INTERVAL_AUTO,
    196 	GUARD_INTERVAL_1_128,
    197 	GUARD_INTERVAL_19_128,
    198 	GUARD_INTERVAL_19_256,
    199 	GUARD_INTERVAL_PN420,
    200 	GUARD_INTERVAL_PN595,
    201 	GUARD_INTERVAL_PN945,
    202 };
    203 
    204 enum fe_hierarchy {
    205 	HIERARCHY_NONE,
    206 	HIERARCHY_1,
    207 	HIERARCHY_2,
    208 	HIERARCHY_4,
    209 	HIERARCHY_AUTO
    210 };
    211 
    212 enum fe_interleaving {
    213 	INTERLEAVING_NONE,
    214 	INTERLEAVING_AUTO,
    215 	INTERLEAVING_240,
    216 	INTERLEAVING_720,
    217 };
    218 
    219 /* S2API Commands */
    220 #define DTV_UNDEFINED		0
    221 #define DTV_TUNE		1
    222 #define DTV_CLEAR		2
    223 #define DTV_FREQUENCY		3
    224 #define DTV_MODULATION		4
    225 #define DTV_BANDWIDTH_HZ	5
    226 #define DTV_INVERSION		6
    227 #define DTV_DISEQC_MASTER	7
    228 #define DTV_SYMBOL_RATE		8
    229 #define DTV_INNER_FEC		9
    230 #define DTV_VOLTAGE		10
    231 #define DTV_TONE		11
    232 #define DTV_PILOT		12
    233 #define DTV_ROLLOFF		13
    234 #define DTV_DISEQC_SLAVE_REPLY	14
    235 
    236 /* Basic enumeration set for querying unlimited capabilities */
    237 #define DTV_FE_CAPABILITY_COUNT	15
    238 #define DTV_FE_CAPABILITY	16
    239 #define DTV_DELIVERY_SYSTEM	17
    240 
    241 /* ISDB-T and ISDB-Tsb */
    242 #define DTV_ISDBT_PARTIAL_RECEPTION	18
    243 #define DTV_ISDBT_SOUND_BROADCASTING	19
    244 
    245 #define DTV_ISDBT_SB_SUBCHANNEL_ID	20
    246 #define DTV_ISDBT_SB_SEGMENT_IDX	21
    247 #define DTV_ISDBT_SB_SEGMENT_COUNT	22
    248 
    249 #define DTV_ISDBT_LAYERA_FEC			23
    250 #define DTV_ISDBT_LAYERA_MODULATION		24
    251 #define DTV_ISDBT_LAYERA_SEGMENT_COUNT		25
    252 #define DTV_ISDBT_LAYERA_TIME_INTERLEAVING	26
    253 
    254 #define DTV_ISDBT_LAYERB_FEC			27
    255 #define DTV_ISDBT_LAYERB_MODULATION		28
    256 #define DTV_ISDBT_LAYERB_SEGMENT_COUNT		29
    257 #define DTV_ISDBT_LAYERB_TIME_INTERLEAVING	30
    258 
    259 #define DTV_ISDBT_LAYERC_FEC			31
    260 #define DTV_ISDBT_LAYERC_MODULATION		32
    261 #define DTV_ISDBT_LAYERC_SEGMENT_COUNT		33
    262 #define DTV_ISDBT_LAYERC_TIME_INTERLEAVING	34
    263 
    264 #define DTV_API_VERSION		35
    265 
    266 #define DTV_CODE_RATE_HP	36
    267 #define DTV_CODE_RATE_LP	37
    268 #define DTV_GUARD_INTERVAL	38
    269 #define DTV_TRANSMISSION_MODE	39
    270 #define DTV_HIERARCHY		40
    271 
    272 #define DTV_ISDBT_LAYER_ENABLED	41
    273 
    274 #define DTV_STREAM_ID		42
    275 #define DTV_ISDBS_TS_ID_LEGACY	DTV_STREAM_ID
    276 #define DTV_DVBT2_PLP_ID_LEGACY	43
    277 
    278 #define DTV_ENUM_DELSYS		44
    279 
    280 /* ATSC-MH */
    281 #define DTV_ATSCMH_FIC_VER		45
    282 #define DTV_ATSCMH_PARADE_ID		46
    283 #define DTV_ATSCMH_NOG			47
    284 #define DTV_ATSCMH_TNOG			48
    285 #define DTV_ATSCMH_SGN			49
    286 #define DTV_ATSCMH_PRC			50
    287 #define DTV_ATSCMH_RS_FRAME_MODE	51
    288 #define DTV_ATSCMH_RS_FRAME_ENSEMBLE	52
    289 #define DTV_ATSCMH_RS_CODE_MODE_PRI	53
    290 #define DTV_ATSCMH_RS_CODE_MODE_SEC	54
    291 #define DTV_ATSCMH_SCCC_BLOCK_MODE	55
    292 #define DTV_ATSCMH_SCCC_CODE_MODE_A	56
    293 #define DTV_ATSCMH_SCCC_CODE_MODE_B	57
    294 #define DTV_ATSCMH_SCCC_CODE_MODE_C	58
    295 #define DTV_ATSCMH_SCCC_CODE_MODE_D	59
    296 
    297 #define DTV_INTERLEAVING			60
    298 #define DTV_LNA					61
    299 
    300 /* Quality parameters */
    301 #define DTV_STAT_SIGNAL_STRENGTH	62
    302 #define DTV_STAT_CNR			63
    303 #define DTV_STAT_PRE_ERROR_BIT_COUNT	64
    304 #define DTV_STAT_PRE_TOTAL_BIT_COUNT	65
    305 #define DTV_STAT_POST_ERROR_BIT_COUNT	66
    306 #define DTV_STAT_POST_TOTAL_BIT_COUNT	67
    307 #define DTV_STAT_ERROR_BLOCK_COUNT	68
    308 #define DTV_STAT_TOTAL_BLOCK_COUNT	69
    309 
    310 #define DTV_MAX_COMMAND		DTV_STAT_TOTAL_BLOCK_COUNT
    311 
    312 enum fe_pilot {
    313 	PILOT_ON,
    314 	PILOT_OFF,
    315 	PILOT_AUTO,
    316 };
    317 
    318 enum fe_rolloff {
    319 	ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */
    320 	ROLLOFF_20,
    321 	ROLLOFF_25,
    322 	ROLLOFF_AUTO,
    323 };
    324 
    325 enum fe_delivery_system {
    326 	SYS_UNDEFINED,
    327 	SYS_DVBC_ANNEX_A,
    328 	SYS_DVBC_ANNEX_B,
    329 	SYS_DVBT,
    330 	SYS_DSS,
    331 	SYS_DVBS,
    332 	SYS_DVBS2,
    333 	SYS_DVBH,
    334 	SYS_ISDBT,
    335 	SYS_ISDBS,
    336 	SYS_ISDBC,
    337 	SYS_ATSC,
    338 	SYS_ATSCMH,
    339 	SYS_DTMB,
    340 	SYS_CMMB,
    341 	SYS_DAB,
    342 	SYS_DVBT2,
    343 	SYS_TURBO,
    344 	SYS_DVBC_ANNEX_C,
    345 };
    346 
    347 /* backward compatibility */
    348 #define SYS_DVBC_ANNEX_AC	SYS_DVBC_ANNEX_A
    349 #define SYS_DMBTH SYS_DTMB /* DMB-TH is legacy name, use DTMB instead */
    350 
    351 /* ATSC-MH */
    352 
    353 enum atscmh_sccc_block_mode {
    354 	ATSCMH_SCCC_BLK_SEP      = 0,
    355 	ATSCMH_SCCC_BLK_COMB     = 1,
    356 	ATSCMH_SCCC_BLK_RES      = 2,
    357 };
    358 
    359 enum atscmh_sccc_code_mode {
    360 	ATSCMH_SCCC_CODE_HLF     = 0,
    361 	ATSCMH_SCCC_CODE_QTR     = 1,
    362 	ATSCMH_SCCC_CODE_RES     = 2,
    363 };
    364 
    365 enum atscmh_rs_frame_ensemble {
    366 	ATSCMH_RSFRAME_ENS_PRI   = 0,
    367 	ATSCMH_RSFRAME_ENS_SEC   = 1,
    368 };
    369 
    370 enum atscmh_rs_frame_mode {
    371 	ATSCMH_RSFRAME_PRI_ONLY  = 0,
    372 	ATSCMH_RSFRAME_PRI_SEC   = 1,
    373 	ATSCMH_RSFRAME_RES       = 2,
    374 };
    375 
    376 enum atscmh_rs_code_mode {
    377 	ATSCMH_RSCODE_211_187    = 0,
    378 	ATSCMH_RSCODE_223_187    = 1,
    379 	ATSCMH_RSCODE_235_187    = 2,
    380 	ATSCMH_RSCODE_RES        = 3,
    381 };
    382 
    383 #define NO_STREAM_ID_FILTER	(~0U)
    384 #define LNA_AUTO                (~0U)
    385 
    386 struct dtv_cmds_h {
    387 	char	*name;		/* A display name for debugging purposes */
    388 
    389 	__u32	cmd;		/* A unique ID */
    390 
    391 	/* Flags */
    392 	__u32	set:1;		/* Either a set or get property */
    393 	__u32	buffer:1;	/* Does this property use the buffer? */
    394 	__u32	reserved:30;	/* Align */
    395 };
    396 
    397 /**
    398  * Scale types for the quality parameters.
    399  * @FE_SCALE_NOT_AVAILABLE: That QoS measure is not available. That
    400  *			    could indicate a temporary or a permanent
    401  *			    condition.
    402  * @FE_SCALE_DECIBEL: The scale is measured in 0.001 dB steps, typically
    403  *		  used on signal measures.
    404  * @FE_SCALE_RELATIVE: The scale is a relative percentual measure,
    405  *			ranging from 0 (0%) to 0xffff (100%).
    406  * @FE_SCALE_COUNTER: The scale counts the occurrence of an event, like
    407  *			bit error, block error, lapsed time.
    408  */
    409 enum fecap_scale_params {
    410 	FE_SCALE_NOT_AVAILABLE = 0,
    411 	FE_SCALE_DECIBEL,
    412 	FE_SCALE_RELATIVE,
    413 	FE_SCALE_COUNTER
    414 };
    415 
    416 /**
    417  * struct dtv_stats - Used for reading a DTV status property
    418  *
    419  * @value:	value of the measure. Should range from 0 to 0xffff;
    420  * @scale:	Filled with enum fecap_scale_params - the scale
    421  *		in usage for that parameter
    422  *
    423  * For most delivery systems, this will return a single value for each
    424  * parameter.
    425  * It should be noticed, however, that new OFDM delivery systems like
    426  * ISDB can use different modulation types for each group of carriers.
    427  * On such standards, up to 8 groups of statistics can be provided, one
    428  * for each carrier group (called "layer" on ISDB).
    429  * In order to be consistent with other delivery systems, the first
    430  * value refers to the entire set of carriers ("global").
    431  * dtv_status:scale should use the value FE_SCALE_NOT_AVAILABLE when
    432  * the value for the entire group of carriers or from one specific layer
    433  * is not provided by the hardware.
    434  * st.len should be filled with the latest filled status + 1.
    435  *
    436  * In other words, for ISDB, those values should be filled like:
    437  *	u.st.stat.svalue[0] = global statistics;
    438  *	u.st.stat.scale[0] = FE_SCALE_DECIBEL;
    439  *	u.st.stat.value[1] = layer A statistics;
    440  *	u.st.stat.scale[1] = FE_SCALE_NOT_AVAILABLE (if not available);
    441  *	u.st.stat.svalue[2] = layer B statistics;
    442  *	u.st.stat.scale[2] = FE_SCALE_DECIBEL;
    443  *	u.st.stat.svalue[3] = layer C statistics;
    444  *	u.st.stat.scale[3] = FE_SCALE_DECIBEL;
    445  *	u.st.len = 4;
    446  */
    447 struct dtv_stats {
    448 	__u8 scale;	/* enum fecap_scale_params type */
    449 	union {
    450 		__u64 uvalue;	/* for counters and relative scales */
    451 		__s64 svalue;	/* for 0.001 dB measures */
    452 	};
    453 } __attribute__ ((packed));
    454 
    455 
    456 #define MAX_DTV_STATS   4
    457 
    458 struct dtv_fe_stats {
    459 	__u8 len;
    460 	struct dtv_stats stat[MAX_DTV_STATS];
    461 } __attribute__ ((packed));
    462 
    463 struct dtv_property {
    464 	__u32 cmd;
    465 	__u32 reserved[3];
    466 	union {
    467 		__u32 data;
    468 		struct dtv_fe_stats st;
    469 		struct {
    470 			__u8 data[32];
    471 			__u32 len;
    472 			__u32 reserved1[3];
    473 			void *reserved2;
    474 		} buffer;
    475 	} u;
    476 	int result;
    477 } __attribute__ ((packed));
    478 
    479 /* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */
    480 #define DTV_IOCTL_MAX_MSGS 64
    481 
    482 struct dtv_properties {
    483 	__u32 num;
    484 	struct dtv_property *props;
    485 };
    486 
    487 #if defined(__DVB_CORE__) || !defined (__KERNEL__)
    488 
    489 /*
    490  * DEPRECATED: The DVBv3 ioctls, structs and enums should not be used on
    491  * newer programs, as it doesn't support the second generation of digital
    492  * TV standards, nor supports newer delivery systems.
    493  */
    494 
    495 enum fe_bandwidth {
    496 	BANDWIDTH_8_MHZ,
    497 	BANDWIDTH_7_MHZ,
    498 	BANDWIDTH_6_MHZ,
    499 	BANDWIDTH_AUTO,
    500 	BANDWIDTH_5_MHZ,
    501 	BANDWIDTH_10_MHZ,
    502 	BANDWIDTH_1_712_MHZ,
    503 };
    504 
    505 /* This is needed for legacy userspace support */
    506 typedef enum fe_sec_voltage fe_sec_voltage_t;
    507 typedef enum fe_caps fe_caps_t;
    508 typedef enum fe_type fe_type_t;
    509 typedef enum fe_sec_tone_mode fe_sec_tone_mode_t;
    510 typedef enum fe_sec_mini_cmd fe_sec_mini_cmd_t;
    511 typedef enum fe_status fe_status_t;
    512 typedef enum fe_spectral_inversion fe_spectral_inversion_t;
    513 typedef enum fe_code_rate fe_code_rate_t;
    514 typedef enum fe_modulation fe_modulation_t;
    515 typedef enum fe_transmit_mode fe_transmit_mode_t;
    516 typedef enum fe_bandwidth fe_bandwidth_t;
    517 typedef enum fe_guard_interval fe_guard_interval_t;
    518 typedef enum fe_hierarchy fe_hierarchy_t;
    519 typedef enum fe_pilot fe_pilot_t;
    520 typedef enum fe_rolloff fe_rolloff_t;
    521 typedef enum fe_delivery_system fe_delivery_system_t;
    522 
    523 struct dvb_qpsk_parameters {
    524 	__u32		symbol_rate;  /* symbol rate in Symbols per second */
    525 	fe_code_rate_t	fec_inner;    /* forward error correction (see above) */
    526 };
    527 
    528 struct dvb_qam_parameters {
    529 	__u32		symbol_rate; /* symbol rate in Symbols per second */
    530 	fe_code_rate_t	fec_inner;   /* forward error correction (see above) */
    531 	fe_modulation_t	modulation;  /* modulation type (see above) */
    532 };
    533 
    534 struct dvb_vsb_parameters {
    535 	fe_modulation_t	modulation;  /* modulation type (see above) */
    536 };
    537 
    538 struct dvb_ofdm_parameters {
    539 	fe_bandwidth_t      bandwidth;
    540 	fe_code_rate_t      code_rate_HP;  /* high priority stream code rate */
    541 	fe_code_rate_t      code_rate_LP;  /* low priority stream code rate */
    542 	fe_modulation_t     constellation; /* modulation type (see above) */
    543 	fe_transmit_mode_t  transmission_mode;
    544 	fe_guard_interval_t guard_interval;
    545 	fe_hierarchy_t      hierarchy_information;
    546 };
    547 
    548 struct dvb_frontend_parameters {
    549 	__u32 frequency;     /* (absolute) frequency in Hz for DVB-C/DVB-T/ATSC */
    550 			     /* intermediate frequency in kHz for DVB-S */
    551 	fe_spectral_inversion_t inversion;
    552 	union {
    553 		struct dvb_qpsk_parameters qpsk;	/* DVB-S */
    554 		struct dvb_qam_parameters  qam;		/* DVB-C */
    555 		struct dvb_ofdm_parameters ofdm;	/* DVB-T */
    556 		struct dvb_vsb_parameters vsb;		/* ATSC */
    557 	} u;
    558 };
    559 
    560 struct dvb_frontend_event {
    561 	fe_status_t status;
    562 	struct dvb_frontend_parameters parameters;
    563 };
    564 #endif
    565 
    566 #define FE_SET_PROPERTY		   _IOW('o', 82, struct dtv_properties)
    567 #define FE_GET_PROPERTY		   _IOR('o', 83, struct dtv_properties)
    568 
    569 /**
    570  * When set, this flag will disable any zigzagging or other "normal" tuning
    571  * behaviour. Additionally, there will be no automatic monitoring of the lock
    572  * status, and hence no frontend events will be generated. If a frontend device
    573  * is closed, this flag will be automatically turned off when the device is
    574  * reopened read-write.
    575  */
    576 #define FE_TUNE_MODE_ONESHOT 0x01
    577 
    578 #define FE_GET_INFO		   _IOR('o', 61, struct dvb_frontend_info)
    579 
    580 #define FE_DISEQC_RESET_OVERLOAD   _IO('o', 62)
    581 #define FE_DISEQC_SEND_MASTER_CMD  _IOW('o', 63, struct dvb_diseqc_master_cmd)
    582 #define FE_DISEQC_RECV_SLAVE_REPLY _IOR('o', 64, struct dvb_diseqc_slave_reply)
    583 #define FE_DISEQC_SEND_BURST       _IO('o', 65)  /* fe_sec_mini_cmd_t */
    584 
    585 #define FE_SET_TONE		   _IO('o', 66)  /* fe_sec_tone_mode_t */
    586 #define FE_SET_VOLTAGE		   _IO('o', 67)  /* fe_sec_voltage_t */
    587 #define FE_ENABLE_HIGH_LNB_VOLTAGE _IO('o', 68)  /* int */
    588 
    589 #define FE_READ_STATUS		   _IOR('o', 69, fe_status_t)
    590 #define FE_READ_BER		   _IOR('o', 70, __u32)
    591 #define FE_READ_SIGNAL_STRENGTH    _IOR('o', 71, __u16)
    592 #define FE_READ_SNR		   _IOR('o', 72, __u16)
    593 #define FE_READ_UNCORRECTED_BLOCKS _IOR('o', 73, __u32)
    594 
    595 #define FE_SET_FRONTEND		   _IOW('o', 76, struct dvb_frontend_parameters)
    596 #define FE_GET_FRONTEND		   _IOR('o', 77, struct dvb_frontend_parameters)
    597 #define FE_SET_FRONTEND_TUNE_MODE  _IO('o', 81) /* unsigned int */
    598 #define FE_GET_EVENT		   _IOR('o', 78, struct dvb_frontend_event)
    599 
    600 #define FE_DISHNETWORK_SEND_LEGACY_CMD _IO('o', 80) /* unsigned int */
    601 
    602 #endif /*_DVBFRONTEND_H_*/
    603