1 /*
2 * frontend.h
3 *
4 * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de>
5 * Ralph Metzler <ralph@convergence.de>
6 * Holger Waechtler <holger@convergence.de>
7 * Andre Draszik <ad@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 <asm/types.h>
30
31
32 typedef enum fe_type {
33 FE_QPSK,
34 FE_QAM,
35 FE_OFDM,
36 FE_ATSC
37 } fe_type_t;
38
39
40 typedef 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_NEEDS_BENDING = 0x20000000, // not supported anymore, don't use (frontend requires frequency bending)
66 FE_CAN_RECOVER = 0x40000000, // frontend can recover from a cable unplug automatically
67 FE_CAN_MUTE_TS = 0x80000000 // frontend can stop spurious TS data output
68 } fe_caps_t;
69
70
71 struct dvb_frontend_info {
72 char name[128];
73 fe_type_t type;
74 __u32 frequency_min;
75 __u32 frequency_max;
76 __u32 frequency_stepsize;
77 __u32 frequency_tolerance;
78 __u32 symbol_rate_min;
79 __u32 symbol_rate_max;
80 __u32 symbol_rate_tolerance; /* ppm */
81 __u32 notifier_delay; /* DEPRECATED */
82 fe_caps_t caps;
83 };
84
85
86 /**
87 * Check out the DiSEqC bus spec available on http://www.eutelsat.org/ for
88 * the meaning of this struct...
89 */
90 struct dvb_diseqc_master_cmd {
91 __u8 msg [6]; /* { framing, address, command, data [3] } */
92 __u8 msg_len; /* valid values are 3...6 */
93 };
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
103 typedef enum fe_sec_voltage {
104 SEC_VOLTAGE_13,
105 SEC_VOLTAGE_18,
106 SEC_VOLTAGE_OFF
107 } fe_sec_voltage_t;
108
109
110 typedef enum fe_sec_tone_mode {
111 SEC_TONE_ON,
112 SEC_TONE_OFF
113 } fe_sec_tone_mode_t;
114
115
116 typedef enum fe_sec_mini_cmd {
117 SEC_MINI_A,
118 SEC_MINI_B
119 } fe_sec_mini_cmd_t;
120
121
122 typedef enum fe_status {
123 FE_HAS_SIGNAL = 0x01, /* found something above the noise level */
124 FE_HAS_CARRIER = 0x02, /* found a DVB signal */
125 FE_HAS_VITERBI = 0x04, /* FEC is stable */
126 FE_HAS_SYNC = 0x08, /* found sync bytes */
127 FE_HAS_LOCK = 0x10, /* everything's working... */
128 FE_TIMEDOUT = 0x20, /* no lock within the last ~2 seconds */
129 FE_REINIT = 0x40 /* frontend was reinitialized, */
130 } fe_status_t; /* application is recommended to reset */
131 /* DiSEqC, tone and parameters */
132
133 typedef enum fe_spectral_inversion {
134 INVERSION_OFF,
135 INVERSION_ON,
136 INVERSION_AUTO
137 } fe_spectral_inversion_t;
138
139
140 typedef enum fe_code_rate {
141 FEC_NONE = 0,
142 FEC_1_2,
143 FEC_2_3,
144 FEC_3_4,
145 FEC_4_5,
146 FEC_5_6,
147 FEC_6_7,
148 FEC_7_8,
149 FEC_8_9,
150 FEC_AUTO
151 } fe_code_rate_t;
152
153
154 typedef enum fe_modulation {
155 QPSK,
156 QAM_16,
157 QAM_32,
158 QAM_64,
159 QAM_128,
160 QAM_256,
161 QAM_AUTO,
162 VSB_8,
163 VSB_16
164 } fe_modulation_t;
165
166 typedef enum fe_transmit_mode {
167 TRANSMISSION_MODE_2K,
168 TRANSMISSION_MODE_8K,
169 TRANSMISSION_MODE_AUTO
170 } fe_transmit_mode_t;
171
172 typedef enum fe_bandwidth {
173 BANDWIDTH_8_MHZ,
174 BANDWIDTH_7_MHZ,
175 BANDWIDTH_6_MHZ,
176 BANDWIDTH_AUTO
177 } fe_bandwidth_t;
178
179
180 typedef enum fe_guard_interval {
181 GUARD_INTERVAL_1_32,
182 GUARD_INTERVAL_1_16,
183 GUARD_INTERVAL_1_8,
184 GUARD_INTERVAL_1_4,
185 GUARD_INTERVAL_AUTO
186 } fe_guard_interval_t;
187
188
189 typedef enum fe_hierarchy {
190 HIERARCHY_NONE,
191 HIERARCHY_1,
192 HIERARCHY_2,
193 HIERARCHY_4,
194 HIERARCHY_AUTO
195 } fe_hierarchy_t;
196
197
198 struct dvb_qpsk_parameters {
199 __u32 symbol_rate; /* symbol rate in Symbols per second */
200 fe_code_rate_t fec_inner; /* forward error correction (see above) */
201 };
202
203 struct dvb_qam_parameters {
204 __u32 symbol_rate; /* symbol rate in Symbols per second */
205 fe_code_rate_t fec_inner; /* forward error correction (see above) */
206 fe_modulation_t modulation; /* modulation type (see above) */
207 };
208
209 struct dvb_vsb_parameters {
210 fe_modulation_t modulation; /* modulation type (see above) */
211 };
212
213 struct dvb_ofdm_parameters {
214 fe_bandwidth_t bandwidth;
215 fe_code_rate_t code_rate_HP; /* high priority stream code rate */
216 fe_code_rate_t code_rate_LP; /* low priority stream code rate */
217 fe_modulation_t constellation; /* modulation type (see above) */
218 fe_transmit_mode_t transmission_mode;
219 fe_guard_interval_t guard_interval;
220 fe_hierarchy_t hierarchy_information;
221 };
222
223
224 struct dvb_frontend_parameters {
225 __u32 frequency; /* (absolute) frequency in Hz for QAM/OFDM/ATSC */
226 /* intermediate frequency in kHz for QPSK */
227 fe_spectral_inversion_t inversion;
228 union {
229 struct dvb_qpsk_parameters qpsk;
230 struct dvb_qam_parameters qam;
231 struct dvb_ofdm_parameters ofdm;
232 struct dvb_vsb_parameters vsb;
233 } u;
234 };
235
236
237 struct dvb_frontend_event {
238 fe_status_t status;
239 struct dvb_frontend_parameters parameters;
240 };
241
242
243 /**
244 * When set, this flag will disable any zigzagging or other "normal" tuning
245 * behaviour. Additionally, there will be no automatic monitoring of the lock
246 * status, and hence no frontend events will be generated. If a frontend device
247 * is closed, this flag will be automatically turned off when the device is
248 * reopened read-write.
249 */
250 #define FE_TUNE_MODE_ONESHOT 0x01
251
252
253 #define FE_GET_INFO _IOR('o', 61, struct dvb_frontend_info)
254
255 #define FE_DISEQC_RESET_OVERLOAD _IO('o', 62)
256 #define FE_DISEQC_SEND_MASTER_CMD _IOW('o', 63, struct dvb_diseqc_master_cmd)
257 #define FE_DISEQC_RECV_SLAVE_REPLY _IOR('o', 64, struct dvb_diseqc_slave_reply)
258 #define FE_DISEQC_SEND_BURST _IO('o', 65) /* fe_sec_mini_cmd_t */
259
260 #define FE_SET_TONE _IO('o', 66) /* fe_sec_tone_mode_t */
261 #define FE_SET_VOLTAGE _IO('o', 67) /* fe_sec_voltage_t */
262 #define FE_ENABLE_HIGH_LNB_VOLTAGE _IO('o', 68) /* int */
263
264 #define FE_READ_STATUS _IOR('o', 69, fe_status_t)
265 #define FE_READ_BER _IOR('o', 70, __u32)
266 #define FE_READ_SIGNAL_STRENGTH _IOR('o', 71, __u16)
267 #define FE_READ_SNR _IOR('o', 72, __u16)
268 #define FE_READ_UNCORRECTED_BLOCKS _IOR('o', 73, __u32)
269
270 #define FE_SET_FRONTEND _IOW('o', 76, struct dvb_frontend_parameters)
271 #define FE_GET_FRONTEND _IOR('o', 77, struct dvb_frontend_parameters)
272 #define FE_SET_FRONTEND_TUNE_MODE _IO('o', 81) /* unsigned int */
273 #define FE_GET_EVENT _IOR('o', 78, struct dvb_frontend_event)
274
275 #define FE_DISHNETWORK_SEND_LEGACY_CMD _IO('o', 80) /* unsigned int */
276
277 #endif /*_DVBFRONTEND_H_*/
278
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