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
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.
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.
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.
26 #ifndef _DVBFRONTEND_H_
27 #define _DVBFRONTEND_H_
29 #include <asm/types.h>
32 typedef enum fe_type {
39 typedef enum fe_caps {
41 FE_CAN_INVERSION_AUTO = 0x1,
45 FE_CAN_FEC_4_5 = 0x10,
46 FE_CAN_FEC_5_6 = 0x20,
47 FE_CAN_FEC_6_7 = 0x40,
48 FE_CAN_FEC_7_8 = 0x80,
49 FE_CAN_FEC_8_9 = 0x100,
50 FE_CAN_FEC_AUTO = 0x200,
52 FE_CAN_QAM_16 = 0x800,
53 FE_CAN_QAM_32 = 0x1000,
54 FE_CAN_QAM_64 = 0x2000,
55 FE_CAN_QAM_128 = 0x4000,
56 FE_CAN_QAM_256 = 0x8000,
57 FE_CAN_QAM_AUTO = 0x10000,
58 FE_CAN_TRANSMISSION_MODE_AUTO = 0x20000,
59 FE_CAN_BANDWIDTH_AUTO = 0x40000,
60 FE_CAN_GUARD_INTERVAL_AUTO = 0x80000,
61 FE_CAN_HIERARCHY_AUTO = 0x100000,
62 FE_NEEDS_BENDING = 0x20000000, // frontend requires frequency bending
63 FE_CAN_RECOVER = 0x40000000, // frontend can recover from a cable unplug automatically
64 FE_CAN_MUTE_TS = 0x80000000 // frontend can stop spurious TS data output
68 struct dvb_frontend_info {
73 __u32 frequency_stepsize;
74 __u32 frequency_tolerance;
75 __u32 symbol_rate_min;
76 __u32 symbol_rate_max;
77 __u32 symbol_rate_tolerance; /* ppm */
78 __u32 notifier_delay; /* ms */
84 * Check out the DiSEqC bus spec available on http://www.eutelsat.org/ for
85 * the meaning of this struct...
87 struct dvb_diseqc_master_cmd {
88 __u8 msg [6]; /* { framing, address, command, data [3] } */
89 __u8 msg_len; /* valid values are 3...6 */
93 struct dvb_diseqc_slave_reply {
94 __u8 msg [4]; /* { framing, data [3] } */
95 __u8 msg_len; /* valid values are 0...4, 0 means no msg */
96 int timeout; /* return from ioctl after timeout ms with */
97 }; /* errorcode when no message was received */
100 typedef enum fe_sec_voltage {
107 typedef enum fe_sec_tone_mode {
110 } fe_sec_tone_mode_t;
113 typedef enum fe_sec_mini_cmd {
119 typedef enum fe_status {
120 FE_HAS_SIGNAL = 0x01, /* found something above the noise level */
121 FE_HAS_CARRIER = 0x02, /* found a DVB signal */
122 FE_HAS_VITERBI = 0x04, /* FEC is stable */
123 FE_HAS_SYNC = 0x08, /* found sync bytes */
124 FE_HAS_LOCK = 0x10, /* everything's working... */
125 FE_TIMEDOUT = 0x20, /* no lock within the last ~2 seconds */
126 FE_REINIT = 0x40 /* frontend was reinitialized, */
127 } fe_status_t; /* application is recommended to reset */
128 /* DiSEqC, tone and parameters */
130 typedef enum fe_spectral_inversion {
134 } fe_spectral_inversion_t;
137 typedef enum fe_code_rate {
151 typedef enum fe_modulation {
162 typedef enum fe_transmit_mode {
163 TRANSMISSION_MODE_2K,
164 TRANSMISSION_MODE_8K,
165 TRANSMISSION_MODE_AUTO
166 } fe_transmit_mode_t;
168 typedef enum fe_bandwidth {
176 typedef enum fe_guard_interval {
182 } fe_guard_interval_t;
185 typedef enum fe_hierarchy {
194 struct dvb_qpsk_parameters {
195 __u32 symbol_rate; /* symbol rate in Symbols per second */
196 fe_code_rate_t fec_inner; /* forward error correction (see above) */
200 struct dvb_qam_parameters {
201 __u32 symbol_rate; /* symbol rate in Symbols per second */
202 fe_code_rate_t fec_inner; /* forward error correction (see above) */
203 fe_modulation_t modulation; /* modulation type (see above) */
207 struct dvb_ofdm_parameters {
208 fe_bandwidth_t bandwidth;
209 fe_code_rate_t code_rate_HP; /* high priority stream code rate */
210 fe_code_rate_t code_rate_LP; /* low priority stream code rate */
211 fe_modulation_t constellation; /* modulation type (see above) */
212 fe_transmit_mode_t transmission_mode;
213 fe_guard_interval_t guard_interval;
214 fe_hierarchy_t hierarchy_information;
218 struct dvb_frontend_parameters {
219 __u32 frequency; /* (absolute) frequency in Hz for QAM/OFDM */
220 /* intermediate frequency in kHz for QPSK */
221 fe_spectral_inversion_t inversion;
223 struct dvb_qpsk_parameters qpsk;
224 struct dvb_qam_parameters qam;
225 struct dvb_ofdm_parameters ofdm;
230 struct dvb_frontend_event {
232 struct dvb_frontend_parameters parameters;
237 #define FE_GET_INFO _IOR('o', 61, struct dvb_frontend_info)
239 #define FE_DISEQC_RESET_OVERLOAD _IO('o', 62)
240 #define FE_DISEQC_SEND_MASTER_CMD _IOW('o', 63, struct dvb_diseqc_master_cmd)
241 #define FE_DISEQC_RECV_SLAVE_REPLY _IOR('o', 64, struct dvb_diseqc_slave_reply)
242 #define FE_DISEQC_SEND_BURST _IO('o', 65) /* fe_sec_mini_cmd_t */
244 #define FE_SET_TONE _IO('o', 66) /* fe_sec_tone_mode_t */
245 #define FE_SET_VOLTAGE _IO('o', 67) /* fe_sec_voltage_t */
246 #define FE_ENABLE_HIGH_LNB_VOLTAGE _IO('o', 68) /* int */
248 #define FE_READ_STATUS _IOR('o', 69, fe_status_t)
249 #define FE_READ_BER _IOR('o', 70, __u32)
250 #define FE_READ_SIGNAL_STRENGTH _IOR('o', 71, __u16)
251 #define FE_READ_SNR _IOR('o', 72, __u16)
252 #define FE_READ_UNCORRECTED_BLOCKS _IOR('o', 73, __u32)
254 #define FE_SET_FRONTEND _IOW('o', 76, struct dvb_frontend_parameters)
255 #define FE_GET_FRONTEND _IOR('o', 77, struct dvb_frontend_parameters)
256 #define FE_GET_EVENT _IOR('o', 78, struct dvb_frontend_event)
259 #endif /*_DVBFRONTEND_H_*/