4 * Copyright (C) 2001 convergence integrated media GmbH
5 * Copyright (C) 2004 convergence GmbH
7 * Written by Ralph Metzler
8 * Overhauled by Holger Waechtler
9 * Kernel I2C stuff by Michael Hunold <hunold@convergence.de>
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.
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.
22 * You should have received a copy of the GNU Lesser General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 #ifndef _DVB_FRONTEND_H_
29 #define _DVB_FRONTEND_H_
31 #include <linux/types.h>
32 #include <linux/sched.h>
33 #include <linux/ioctl.h>
34 #include <linux/i2c.h>
35 #include <linux/module.h>
36 #include <linux/errno.h>
37 #include <linux/delay.h>
38 #include <linux/mutex.h>
40 #include <linux/dvb/frontend.h>
44 struct dvb_frontend_tune_settings {
48 struct dvb_frontend_parameters parameters;
53 struct dvb_tuner_info {
65 struct analog_parameters {
66 unsigned int frequency;
73 DVBFE_MODCOD_DUMMY_PLFRAME = 0,
74 DVBFE_MODCOD_QPSK_1_4,
75 DVBFE_MODCOD_QPSK_1_3,
76 DVBFE_MODCOD_QPSK_2_5,
77 DVBFE_MODCOD_QPSK_1_2,
78 DVBFE_MODCOD_QPSK_3_5,
79 DVBFE_MODCOD_QPSK_2_3,
80 DVBFE_MODCOD_QPSK_3_4,
81 DVBFE_MODCOD_QPSK_4_5,
82 DVBFE_MODCOD_QPSK_5_6,
83 DVBFE_MODCOD_QPSK_8_9,
84 DVBFE_MODCOD_QPSK_9_10,
85 DVBFE_MODCOD_8PSK_3_5,
86 DVBFE_MODCOD_8PSK_2_3,
87 DVBFE_MODCOD_8PSK_3_4,
88 DVBFE_MODCOD_8PSK_5_6,
89 DVBFE_MODCOD_8PSK_8_9,
90 DVBFE_MODCOD_8PSK_9_10,
91 DVBFE_MODCOD_16APSK_2_3,
92 DVBFE_MODCOD_16APSK_3_4,
93 DVBFE_MODCOD_16APSK_4_5,
94 DVBFE_MODCOD_16APSK_5_6,
95 DVBFE_MODCOD_16APSK_8_9,
96 DVBFE_MODCOD_16APSK_9_10,
97 DVBFE_MODCOD_32APSK_3_4,
98 DVBFE_MODCOD_32APSK_4_5,
99 DVBFE_MODCOD_32APSK_5_6,
100 DVBFE_MODCOD_32APSK_8_9,
101 DVBFE_MODCOD_32APSK_9_10,
102 DVBFE_MODCOD_RESERVED_1,
103 DVBFE_MODCOD_BPSK_1_3,
104 DVBFE_MODCOD_BPSK_1_4,
105 DVBFE_MODCOD_RESERVED_2
109 DVBFE_TUNER_FREQUENCY = (1 << 0),
110 DVBFE_TUNER_TUNERSTEP = (1 << 1),
111 DVBFE_TUNER_IFFREQ = (1 << 2),
112 DVBFE_TUNER_BANDWIDTH = (1 << 3),
113 DVBFE_TUNER_REFCLOCK = (1 << 4),
114 DVBFE_TUNER_IQSENSE = (1 << 5),
115 DVBFE_TUNER_DUMMY = (1 << 31)
119 * ALGO_HW: (Hardware Algorithm)
120 * ----------------------------------------------------------------
121 * Devices that support this algorithm do everything in hardware
122 * and no software support is needed to handle them.
123 * Requesting these devices to LOCK is the only thing required,
124 * device is supposed to do everything in the hardware.
126 * ALGO_SW: (Software Algorithm)
127 * ----------------------------------------------------------------
128 * These are dumb devices, that require software to do everything
130 * ALGO_CUSTOM: (Customizable Agorithm)
131 * ----------------------------------------------------------------
132 * Devices having this algorithm can be customized to have specific
133 * algorithms in the frontend driver, rather than simply doing a
134 * software zig-zag. In this case the zigzag maybe hardware assisted
135 * or it maybe completely done in hardware. In all cases, usage of
136 * this algorithm, in conjunction with the search and track
137 * callbacks, utilizes the driver specific algorithm.
139 * ALGO_RECOVERY: (Recovery Algorithm)
140 * ----------------------------------------------------------------
141 * These devices have AUTO recovery capabilities from LOCK failure
144 DVBFE_ALGO_HW = (1 << 0),
145 DVBFE_ALGO_SW = (1 << 1),
146 DVBFE_ALGO_CUSTOM = (1 << 2),
147 DVBFE_ALGO_RECOVERY = (1 << 31)
160 * search callback possible return status
162 * DVBFE_ALGO_SEARCH_SUCCESS
163 * The frontend search algorithm completed and returned succesfully
165 * DVBFE_ALGO_SEARCH_ASLEEP
166 * The frontend search algorithm is sleeping
168 * DVBFE_ALGO_SEARCH_FAILED
169 * The frontend search for a signal failed
171 * DVBFE_ALGO_SEARCH_INVALID
172 * The frontend search algorith was probably supplied with invalid
173 * parameters and the search is an invalid one
175 * DVBFE_ALGO_SEARCH_ERROR
176 * The frontend search algorithm failed due to some error
178 * DVBFE_ALGO_SEARCH_AGAIN
179 * The frontend search algorithm was requested to search again
182 DVBFE_ALGO_SEARCH_SUCCESS = (1 << 0),
183 DVBFE_ALGO_SEARCH_ASLEEP = (1 << 1),
184 DVBFE_ALGO_SEARCH_FAILED = (1 << 2),
185 DVBFE_ALGO_SEARCH_INVALID = (1 << 3),
186 DVBFE_ALGO_SEARCH_AGAIN = (1 << 4),
187 DVBFE_ALGO_SEARCH_ERROR = (1 << 31),
191 struct dvb_tuner_ops {
193 struct dvb_tuner_info info;
195 int (*release)(struct dvb_frontend *fe);
196 int (*init)(struct dvb_frontend *fe);
197 int (*sleep)(struct dvb_frontend *fe);
199 /** This is for simple PLLs - set all parameters in one go. */
200 int (*set_params)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
201 int (*set_analog_params)(struct dvb_frontend *fe, struct analog_parameters *p);
203 /** This is support for demods like the mt352 - fills out the supplied buffer with what to write. */
204 int (*calc_regs)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p, u8 *buf, int buf_len);
206 /** This is to allow setting tuner-specific configs */
207 int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
209 int (*get_frequency)(struct dvb_frontend *fe, u32 *frequency);
210 int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth);
212 #define TUNER_STATUS_LOCKED 1
213 #define TUNER_STATUS_STEREO 2
214 int (*get_status)(struct dvb_frontend *fe, u32 *status);
215 int (*get_rf_strength)(struct dvb_frontend *fe, u16 *strength);
217 /** These are provided seperately from set_params in order to facilitate silicon
218 * tuners which require sophisticated tuning loops, controlling each parameter seperately. */
219 int (*set_frequency)(struct dvb_frontend *fe, u32 frequency);
220 int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth);
223 * These are provided seperately from set_params in order to facilitate silicon
224 * tuners which require sophisticated tuning loops, controlling each parameter seperately.
226 int (*set_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
227 int (*get_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
230 struct analog_demod_info {
234 struct analog_demod_ops {
236 struct analog_demod_info info;
238 void (*set_params)(struct dvb_frontend *fe,
239 struct analog_parameters *params);
240 int (*has_signal)(struct dvb_frontend *fe);
241 int (*is_stereo)(struct dvb_frontend *fe);
242 int (*get_afc)(struct dvb_frontend *fe);
243 void (*tuner_status)(struct dvb_frontend *fe);
244 void (*standby)(struct dvb_frontend *fe);
245 void (*release)(struct dvb_frontend *fe);
246 int (*i2c_gate_ctrl)(struct dvb_frontend *fe, int enable);
248 /** This is to allow setting tuner-specific configuration */
249 int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
252 struct dvb_frontend_ops {
254 struct dvb_frontend_info info;
256 void (*release)(struct dvb_frontend* fe);
257 void (*release_sec)(struct dvb_frontend* fe);
259 int (*init)(struct dvb_frontend* fe);
260 int (*sleep)(struct dvb_frontend* fe);
262 int (*write)(struct dvb_frontend* fe, u8* buf, int len);
264 /* if this is set, it overrides the default swzigzag */
265 int (*tune)(struct dvb_frontend* fe,
266 struct dvb_frontend_parameters* params,
267 unsigned int mode_flags,
269 fe_status_t *status);
270 /* get frontend tuning algorithm from the module */
271 enum dvbfe_algo (*get_frontend_algo)(struct dvb_frontend *fe);
273 /* these two are only used for the swzigzag code */
274 int (*set_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
275 int (*get_tune_settings)(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* settings);
277 int (*get_frontend)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
279 int (*read_status)(struct dvb_frontend* fe, fe_status_t* status);
280 int (*read_ber)(struct dvb_frontend* fe, u32* ber);
281 int (*read_signal_strength)(struct dvb_frontend* fe, u16* strength);
282 int (*read_snr)(struct dvb_frontend* fe, u16* snr);
283 int (*read_ucblocks)(struct dvb_frontend* fe, u32* ucblocks);
285 int (*diseqc_reset_overload)(struct dvb_frontend* fe);
286 int (*diseqc_send_master_cmd)(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd);
287 int (*diseqc_recv_slave_reply)(struct dvb_frontend* fe, struct dvb_diseqc_slave_reply* reply);
288 int (*diseqc_send_burst)(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd);
289 int (*set_tone)(struct dvb_frontend* fe, fe_sec_tone_mode_t tone);
290 int (*set_voltage)(struct dvb_frontend* fe, fe_sec_voltage_t voltage);
291 int (*enable_high_lnb_voltage)(struct dvb_frontend* fe, long arg);
292 int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned long cmd);
293 int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable);
294 int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire);
296 /* These callbacks are for devices that implement their own
297 * tuning algorithms, rather than a simple swzigzag
299 enum dvbfe_search (*search)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
300 int (*track)(struct dvb_frontend *fe, struct dvb_frontend_parameters *p);
302 struct dvb_tuner_ops tuner_ops;
303 struct analog_demod_ops analog_ops;
305 int (*set_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
306 int (*get_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
311 struct dvb_fe_events {
312 struct dvb_frontend_event events[MAX_EVENT];
316 wait_queue_head_t wait_queue;
320 struct dtv_frontend_properties {
326 fe_modulation_t modulation;
328 fe_sec_voltage_t voltage;
329 fe_sec_tone_mode_t sectone;
330 fe_spectral_inversion_t inversion;
331 fe_code_rate_t fec_inner;
332 fe_transmit_mode_t transmission_mode;
333 u32 bandwidth_hz; /* 0 = AUTO */
334 fe_guard_interval_t guard_interval;
335 fe_hierarchy_t hierarchy;
337 fe_code_rate_t code_rate_HP;
338 fe_code_rate_t code_rate_LP;
341 fe_rolloff_t rolloff;
343 fe_delivery_system_t delivery_system;
346 struct dvb_frontend {
347 struct dvb_frontend_ops ops;
348 struct dvb_adapter *dvb;
349 void *demodulator_priv;
353 void *analog_demod_priv;
354 struct dtv_frontend_properties dtv_property_cache;
355 #define DVB_FRONTEND_COMPONENT_TUNER 0
356 int (*callback)(void *adapter_priv, int component, int cmd, int arg);
360 extern int dvb_register_frontend(struct dvb_adapter *dvb,
361 struct dvb_frontend *fe);
363 extern int dvb_unregister_frontend(struct dvb_frontend *fe);
365 extern void dvb_frontend_detach(struct dvb_frontend *fe);
367 extern void dvb_frontend_reinitialise(struct dvb_frontend *fe);
369 extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec);
370 extern s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime);