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1<programlisting>
2/*
3 * frontend.h
4 *
5 * Copyright (C) 2000 Marcus Metzler &lt;marcus@convergence.de&gt;
6 * Ralph Metzler &lt;ralph@convergence.de&gt;
7 * Holger Waechtler &lt;holger@convergence.de&gt;
8 * Andre Draszik &lt;ad@convergence.de&gt;
9 * for convergence integrated media GmbH
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public License
13 * as published by the Free Software Foundation; either version 2.1
14 * of the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 *
25 */
26
27#ifndef _DVBFRONTEND_H_
28#define _DVBFRONTEND_H_
29
30#include &lt;linux/types.h&gt;
31
32typedef enum fe_type {
33 FE_QPSK,
34 FE_QAM,
35 FE_OFDM,
36 FE_ATSC
37} fe_type_t;
38
39
40typedef enum fe_caps {
41 FE_IS_STUPID = 0,
42 FE_CAN_INVERSION_AUTO = 0x1,
43 FE_CAN_FEC_1_2 = 0x2,
44 FE_CAN_FEC_2_3 = 0x4,
45 FE_CAN_FEC_3_4 = 0x8,
46 FE_CAN_FEC_4_5 = 0x10,
47 FE_CAN_FEC_5_6 = 0x20,
48 FE_CAN_FEC_6_7 = 0x40,
49 FE_CAN_FEC_7_8 = 0x80,
50 FE_CAN_FEC_8_9 = 0x100,
51 FE_CAN_FEC_AUTO = 0x200,
52 FE_CAN_QPSK = 0x400,
53 FE_CAN_QAM_16 = 0x800,
54 FE_CAN_QAM_32 = 0x1000,
55 FE_CAN_QAM_64 = 0x2000,
56 FE_CAN_QAM_128 = 0x4000,
57 FE_CAN_QAM_256 = 0x8000,
58 FE_CAN_QAM_AUTO = 0x10000,
59 FE_CAN_TRANSMISSION_MODE_AUTO = 0x20000,
60 FE_CAN_BANDWIDTH_AUTO = 0x40000,
61 FE_CAN_GUARD_INTERVAL_AUTO = 0x80000,
62 FE_CAN_HIERARCHY_AUTO = 0x100000,
63 FE_CAN_8VSB = 0x200000,
64 FE_CAN_16VSB = 0x400000,
65 FE_HAS_EXTENDED_CAPS = 0x800000, /* We need more bitspace for newer APIs, indicate this. */
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} fe_caps_t;
71
72
73struct dvb_frontend_info {
74 char name[128];
75 fe_type_t type;
76 __u32 frequency_min;
77 __u32 frequency_max;
78 __u32 frequency_stepsize;
79 __u32 frequency_tolerance;
80 __u32 symbol_rate_min;
81 __u32 symbol_rate_max;
82 __u32 symbol_rate_tolerance; /* ppm */
83 __u32 notifier_delay; /* DEPRECATED */
84 fe_caps_t caps;
85};
86
87
88/**
89 * Check out the DiSEqC bus spec available on http://www.eutelsat.org/ for
90 * the meaning of this struct...
91 */
92struct dvb_diseqc_master_cmd {
93 __u8 msg [6]; /* { framing, address, command, data [3] } */
94 __u8 msg_len; /* valid values are 3...6 */
95};
96
97
98struct dvb_diseqc_slave_reply {
99 __u8 msg [4]; /* { framing, data [3] } */
100 __u8 msg_len; /* valid values are 0...4, 0 means no msg */
101 int timeout; /* return from ioctl after timeout ms with */
102}; /* errorcode when no message was received */
103
104
105typedef enum fe_sec_voltage {
106 SEC_VOLTAGE_13,
107 SEC_VOLTAGE_18,
108 SEC_VOLTAGE_OFF
109} fe_sec_voltage_t;
110
111
112typedef enum fe_sec_tone_mode {
113 SEC_TONE_ON,
114 SEC_TONE_OFF
115} fe_sec_tone_mode_t;
116
117
118typedef enum fe_sec_mini_cmd {
119 SEC_MINI_A,
120 SEC_MINI_B
121} fe_sec_mini_cmd_t;
122
123
124typedef enum fe_status {
125 FE_HAS_SIGNAL = 0x01, /* found something above the noise level */
126 FE_HAS_CARRIER = 0x02, /* found a DVB signal */
127 FE_HAS_VITERBI = 0x04, /* FEC is stable */
128 FE_HAS_SYNC = 0x08, /* found sync bytes */
129 FE_HAS_LOCK = 0x10, /* everything's working... */
130 FE_TIMEDOUT = 0x20, /* no lock within the last ~2 seconds */
131 FE_REINIT = 0x40 /* frontend was reinitialized, */
132} fe_status_t; /* application is recommended to reset */
133 /* DiSEqC, tone and parameters */
134
135typedef enum fe_spectral_inversion {
136 INVERSION_OFF,
137 INVERSION_ON,
138 INVERSION_AUTO
139} fe_spectral_inversion_t;
140
141
142typedef enum fe_code_rate {
143 FEC_NONE = 0,
144 FEC_1_2,
145 FEC_2_3,
146 FEC_3_4,
147 FEC_4_5,
148 FEC_5_6,
149 FEC_6_7,
150 FEC_7_8,
151 FEC_8_9,
152 FEC_AUTO,
153 FEC_3_5,
154 FEC_9_10,
155} fe_code_rate_t;
156
157
158typedef enum fe_modulation {
159 QPSK,
160 QAM_16,
161 QAM_32,
162 QAM_64,
163 QAM_128,
164 QAM_256,
165 QAM_AUTO,
166 VSB_8,
167 VSB_16,
168 PSK_8,
169 APSK_16,
170 APSK_32,
171 DQPSK,
172} fe_modulation_t;
173
174typedef enum fe_transmit_mode {
175 TRANSMISSION_MODE_2K,
176 TRANSMISSION_MODE_8K,
177 TRANSMISSION_MODE_AUTO,
178 TRANSMISSION_MODE_4K
179} fe_transmit_mode_t;
180
181typedef enum fe_bandwidth {
182 BANDWIDTH_8_MHZ,
183 BANDWIDTH_7_MHZ,
184 BANDWIDTH_6_MHZ,
185 BANDWIDTH_AUTO
186} fe_bandwidth_t;
187
188
189typedef enum fe_guard_interval {
190 GUARD_INTERVAL_1_32,
191 GUARD_INTERVAL_1_16,
192 GUARD_INTERVAL_1_8,
193 GUARD_INTERVAL_1_4,
194 GUARD_INTERVAL_AUTO
195} fe_guard_interval_t;
196
197
198typedef enum fe_hierarchy {
199 HIERARCHY_NONE,
200 HIERARCHY_1,
201 HIERARCHY_2,
202 HIERARCHY_4,
203 HIERARCHY_AUTO
204} fe_hierarchy_t;
205
206
207struct dvb_qpsk_parameters {
208 __u32 symbol_rate; /* symbol rate in Symbols per second */
209 fe_code_rate_t fec_inner; /* forward error correction (see above) */
210};
211
212struct dvb_qam_parameters {
213 __u32 symbol_rate; /* symbol rate in Symbols per second */
214 fe_code_rate_t fec_inner; /* forward error correction (see above) */
215 fe_modulation_t modulation; /* modulation type (see above) */
216};
217
218struct dvb_vsb_parameters {
219 fe_modulation_t modulation; /* modulation type (see above) */
220};
221
222struct dvb_ofdm_parameters {
223 fe_bandwidth_t bandwidth;
224 fe_code_rate_t code_rate_HP; /* high priority stream code rate */
225 fe_code_rate_t code_rate_LP; /* low priority stream code rate */
226 fe_modulation_t constellation; /* modulation type (see above) */
227 fe_transmit_mode_t transmission_mode;
228 fe_guard_interval_t guard_interval;
229 fe_hierarchy_t hierarchy_information;
230};
231
232
233struct dvb_frontend_parameters {
234 __u32 frequency; /* (absolute) frequency in Hz for QAM/OFDM/ATSC */
235 /* intermediate frequency in kHz for QPSK */
236 fe_spectral_inversion_t inversion;
237 union {
238 struct dvb_qpsk_parameters qpsk;
239 struct dvb_qam_parameters qam;
240 struct dvb_ofdm_parameters ofdm;
241 struct dvb_vsb_parameters vsb;
242 } u;
243};
244
245
246struct dvb_frontend_event {
247 fe_status_t status;
248 struct dvb_frontend_parameters parameters;
249};
250
251/* S2API Commands */
252#define DTV_UNDEFINED 0
253#define DTV_TUNE 1
254#define DTV_CLEAR 2
255#define DTV_FREQUENCY 3
256#define DTV_MODULATION 4
257#define DTV_BANDWIDTH_HZ 5
258#define DTV_INVERSION 6
259#define DTV_DISEQC_MASTER 7
260#define DTV_SYMBOL_RATE 8
261#define DTV_INNER_FEC 9
262#define DTV_VOLTAGE 10
263#define DTV_TONE 11
264#define DTV_PILOT 12
265#define DTV_ROLLOFF 13
266#define DTV_DISEQC_SLAVE_REPLY 14
267
268/* Basic enumeration set for querying unlimited capabilities */
269#define DTV_FE_CAPABILITY_COUNT 15
270#define DTV_FE_CAPABILITY 16
271#define DTV_DELIVERY_SYSTEM 17
272
273/* ISDB-T and ISDB-Tsb */
274#define DTV_ISDBT_PARTIAL_RECEPTION 18
275#define DTV_ISDBT_SOUND_BROADCASTING 19
276
277#define DTV_ISDBT_SB_SUBCHANNEL_ID 20
278#define DTV_ISDBT_SB_SEGMENT_IDX 21
279#define DTV_ISDBT_SB_SEGMENT_COUNT 22
280
281#define DTV_ISDBT_LAYERA_FEC 23
282#define DTV_ISDBT_LAYERA_MODULATION 24
283#define DTV_ISDBT_LAYERA_SEGMENT_COUNT 25
284#define DTV_ISDBT_LAYERA_TIME_INTERLEAVING 26
285
286#define DTV_ISDBT_LAYERB_FEC 27
287#define DTV_ISDBT_LAYERB_MODULATION 28
288#define DTV_ISDBT_LAYERB_SEGMENT_COUNT 29
289#define DTV_ISDBT_LAYERB_TIME_INTERLEAVING 30
290
291#define DTV_ISDBT_LAYERC_FEC 31
292#define DTV_ISDBT_LAYERC_MODULATION 32
293#define DTV_ISDBT_LAYERC_SEGMENT_COUNT 33
294#define DTV_ISDBT_LAYERC_TIME_INTERLEAVING 34
295
296#define DTV_API_VERSION 35
297
298#define DTV_CODE_RATE_HP 36
299#define DTV_CODE_RATE_LP 37
300#define DTV_GUARD_INTERVAL 38
301#define DTV_TRANSMISSION_MODE 39
302#define DTV_HIERARCHY 40
303
304#define DTV_ISDBT_LAYER_ENABLED 41
305
306#define DTV_ISDBS_TS_ID 42
307
308#define DTV_MAX_COMMAND DTV_ISDBS_TS_ID
309
310typedef enum fe_pilot {
311 PILOT_ON,
312 PILOT_OFF,
313 PILOT_AUTO,
314} fe_pilot_t;
315
316typedef enum fe_rolloff {
317 ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */
318 ROLLOFF_20,
319 ROLLOFF_25,
320 ROLLOFF_AUTO,
321} fe_rolloff_t;
322
323typedef enum fe_delivery_system {
324 SYS_UNDEFINED,
325 SYS_DVBC_ANNEX_AC,
326 SYS_DVBC_ANNEX_B,
327 SYS_DVBT,
328 SYS_DSS,
329 SYS_DVBS,
330 SYS_DVBS2,
331 SYS_DVBH,
332 SYS_ISDBT,
333 SYS_ISDBS,
334 SYS_ISDBC,
335 SYS_ATSC,
336 SYS_ATSCMH,
337 SYS_DMBTH,
338 SYS_CMMB,
339 SYS_DAB,
340} fe_delivery_system_t;
341
342struct dtv_cmds_h {
343 char *name; /* A display name for debugging purposes */
344
345 __u32 cmd; /* A unique ID */
346
347 /* Flags */
348 __u32 set:1; /* Either a set or get property */
349 __u32 buffer:1; /* Does this property use the buffer? */
350 __u32 reserved:30; /* Align */
351};
352
353struct dtv_property {
354 __u32 cmd;
355 __u32 reserved[3];
356 union {
357 __u32 data;
358 struct {
359 __u8 data[32];
360 __u32 len;
361 __u32 reserved1[3];
362 void *reserved2;
363 } buffer;
364 } u;
365 int result;
366} __attribute__ ((packed));
367
368/* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */
369#define DTV_IOCTL_MAX_MSGS 64
370
371struct dtv_properties {
372 __u32 num;
373 struct dtv_property *props;
374};
375
376#define <link linkend="FE_GET_PROPERTY">FE_SET_PROPERTY</link> _IOW('o', 82, struct dtv_properties)
377#define <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link> _IOR('o', 83, struct dtv_properties)
378
379
380/**
381 * When set, this flag will disable any zigzagging or other "normal" tuning
382 * behaviour. Additionally, there will be no automatic monitoring of the lock
383 * status, and hence no frontend events will be generated. If a frontend device
384 * is closed, this flag will be automatically turned off when the device is
385 * reopened read-write.
386 */
387#define FE_TUNE_MODE_ONESHOT 0x01
388
389
390#define <link linkend="FE_GET_INFO">FE_GET_INFO</link> _IOR('o', 61, struct dvb_frontend_info)
391
392#define <link linkend="FE_DISEQC_RESET_OVERLOAD">FE_DISEQC_RESET_OVERLOAD</link> _IO('o', 62)
393#define <link linkend="FE_DISEQC_SEND_MASTER_CMD">FE_DISEQC_SEND_MASTER_CMD</link> _IOW('o', 63, struct dvb_diseqc_master_cmd)
394#define <link linkend="FE_DISEQC_RECV_SLAVE_REPLY">FE_DISEQC_RECV_SLAVE_REPLY</link> _IOR('o', 64, struct dvb_diseqc_slave_reply)
395#define <link linkend="FE_DISEQC_SEND_BURST">FE_DISEQC_SEND_BURST</link> _IO('o', 65) /* fe_sec_mini_cmd_t */
396
397#define <link linkend="FE_SET_TONE">FE_SET_TONE</link> _IO('o', 66) /* fe_sec_tone_mode_t */
398#define <link linkend="FE_SET_VOLTAGE">FE_SET_VOLTAGE</link> _IO('o', 67) /* fe_sec_voltage_t */
399#define <link linkend="FE_ENABLE_HIGH_LNB_VOLTAGE">FE_ENABLE_HIGH_LNB_VOLTAGE</link> _IO('o', 68) /* int */
400
401#define <link linkend="FE_READ_STATUS">FE_READ_STATUS</link> _IOR('o', 69, fe_status_t)
402#define <link linkend="FE_READ_BER">FE_READ_BER</link> _IOR('o', 70, __u32)
403#define <link linkend="FE_READ_SIGNAL_STRENGTH">FE_READ_SIGNAL_STRENGTH</link> _IOR('o', 71, __u16)
404#define <link linkend="FE_READ_SNR">FE_READ_SNR</link> _IOR('o', 72, __u16)
405#define <link linkend="FE_READ_UNCORRECTED_BLOCKS">FE_READ_UNCORRECTED_BLOCKS</link> _IOR('o', 73, __u32)
406
407#define <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link> _IOW('o', 76, struct dvb_frontend_parameters)
408#define <link linkend="FE_GET_FRONTEND">FE_GET_FRONTEND</link> _IOR('o', 77, struct dvb_frontend_parameters)
409#define <link linkend="FE_SET_FRONTEND_TUNE_MODE">FE_SET_FRONTEND_TUNE_MODE</link> _IO('o', 81) /* unsigned int */
410#define <link linkend="FE_GET_EVENT">FE_GET_EVENT</link> _IOR('o', 78, struct dvb_frontend_event)
411
412#define <link linkend="FE_DISHNETWORK_SEND_LEGACY_CMD">FE_DISHNETWORK_SEND_LEGACY_CMD</link> _IO('o', 80) /* unsigned int */
413
414#endif /*_DVBFRONTEND_H_*/
415</programlisting>