summaryrefslogtreecommitdiff
path: root/drivers/media/dvb-core/dvb_frontend.h
blob: b34922a0815643986da4d0d12ba355f5674bce3d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
/*
 * dvb_frontend.h
 *
 * Copyright (C) 2001 convergence integrated media GmbH
 * Copyright (C) 2004 convergence GmbH
 *
 * Written by Ralph Metzler
 * Overhauled by Holger Waechtler
 * Kernel I2C stuff by Michael Hunold <hunold@convergence.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *

 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

#ifndef _DVB_FRONTEND_H_
#define _DVB_FRONTEND_H_

#include <linux/types.h>
#include <linux/sched.h>
#include <linux/ioctl.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/slab.h>

#include <linux/dvb/frontend.h>

#include "dvbdev.h"

/*
 * Maximum number of Delivery systems per frontend. It
 * should be smaller or equal to 32
 */
#define MAX_DELSYS	8

struct dvb_frontend_tune_settings {
	int min_delay_ms;
	int step_size;
	int max_drift;
};

struct dvb_frontend;

struct dvb_tuner_info {
	char name[128];

	u32 frequency_min;
	u32 frequency_max;
	u32 frequency_step;

	u32 bandwidth_min;
	u32 bandwidth_max;
	u32 bandwidth_step;
};

struct analog_parameters {
	unsigned int frequency;
	unsigned int mode;
	unsigned int audmode;
	u64 std;
};

enum dvbfe_modcod {
	DVBFE_MODCOD_DUMMY_PLFRAME	= 0,
	DVBFE_MODCOD_QPSK_1_4,
	DVBFE_MODCOD_QPSK_1_3,
	DVBFE_MODCOD_QPSK_2_5,
	DVBFE_MODCOD_QPSK_1_2,
	DVBFE_MODCOD_QPSK_3_5,
	DVBFE_MODCOD_QPSK_2_3,
	DVBFE_MODCOD_QPSK_3_4,
	DVBFE_MODCOD_QPSK_4_5,
	DVBFE_MODCOD_QPSK_5_6,
	DVBFE_MODCOD_QPSK_8_9,
	DVBFE_MODCOD_QPSK_9_10,
	DVBFE_MODCOD_8PSK_3_5,
	DVBFE_MODCOD_8PSK_2_3,
	DVBFE_MODCOD_8PSK_3_4,
	DVBFE_MODCOD_8PSK_5_6,
	DVBFE_MODCOD_8PSK_8_9,
	DVBFE_MODCOD_8PSK_9_10,
	DVBFE_MODCOD_16APSK_2_3,
	DVBFE_MODCOD_16APSK_3_4,
	DVBFE_MODCOD_16APSK_4_5,
	DVBFE_MODCOD_16APSK_5_6,
	DVBFE_MODCOD_16APSK_8_9,
	DVBFE_MODCOD_16APSK_9_10,
	DVBFE_MODCOD_32APSK_3_4,
	DVBFE_MODCOD_32APSK_4_5,
	DVBFE_MODCOD_32APSK_5_6,
	DVBFE_MODCOD_32APSK_8_9,
	DVBFE_MODCOD_32APSK_9_10,
	DVBFE_MODCOD_RESERVED_1,
	DVBFE_MODCOD_BPSK_1_3,
	DVBFE_MODCOD_BPSK_1_4,
	DVBFE_MODCOD_RESERVED_2
};

enum tuner_param {
	DVBFE_TUNER_FREQUENCY		= (1 <<  0),
	DVBFE_TUNER_TUNERSTEP		= (1 <<  1),
	DVBFE_TUNER_IFFREQ		= (1 <<  2),
	DVBFE_TUNER_BANDWIDTH		= (1 <<  3),
	DVBFE_TUNER_REFCLOCK		= (1 <<  4),
	DVBFE_TUNER_IQSENSE		= (1 <<  5),
	DVBFE_TUNER_DUMMY		= (1 << 31)
};

/*
 * ALGO_HW: (Hardware Algorithm)
 * ----------------------------------------------------------------
 * Devices that support this algorithm do everything in hardware
 * and no software support is needed to handle them.
 * Requesting these devices to LOCK is the only thing required,
 * device is supposed to do everything in the hardware.
 *
 * ALGO_SW: (Software Algorithm)
 * ----------------------------------------------------------------
 * These are dumb devices, that require software to do everything
 *
 * ALGO_CUSTOM: (Customizable Agorithm)
 * ----------------------------------------------------------------
 * Devices having this algorithm can be customized to have specific
 * algorithms in the frontend driver, rather than simply doing a
 * software zig-zag. In this case the zigzag maybe hardware assisted
 * or it maybe completely done in hardware. In all cases, usage of
 * this algorithm, in conjunction with the search and track
 * callbacks, utilizes the driver specific algorithm.
 *
 * ALGO_RECOVERY: (Recovery Algorithm)
 * ----------------------------------------------------------------
 * These devices have AUTO recovery capabilities from LOCK failure
 */
enum dvbfe_algo {
	DVBFE_ALGO_HW			= (1 <<  0),
	DVBFE_ALGO_SW			= (1 <<  1),
	DVBFE_ALGO_CUSTOM		= (1 <<  2),
	DVBFE_ALGO_RECOVERY		= (1 << 31)
};

struct tuner_state {
	u32 frequency;
	u32 tunerstep;
	u32 ifreq;
	u32 bandwidth;
	u32 iqsense;
	u32 refclock;
};

/*
 * search callback possible return status
 *
 * DVBFE_ALGO_SEARCH_SUCCESS
 * The frontend search algorithm completed and returned successfully
 *
 * DVBFE_ALGO_SEARCH_ASLEEP
 * The frontend search algorithm is sleeping
 *
 * DVBFE_ALGO_SEARCH_FAILED
 * The frontend search for a signal failed
 *
 * DVBFE_ALGO_SEARCH_INVALID
 * The frontend search algorith was probably supplied with invalid
 * parameters and the search is an invalid one
 *
 * DVBFE_ALGO_SEARCH_ERROR
 * The frontend search algorithm failed due to some error
 *
 * DVBFE_ALGO_SEARCH_AGAIN
 * The frontend search algorithm was requested to search again
 */
enum dvbfe_search {
	DVBFE_ALGO_SEARCH_SUCCESS	= (1 <<  0),
	DVBFE_ALGO_SEARCH_ASLEEP	= (1 <<  1),
	DVBFE_ALGO_SEARCH_FAILED	= (1 <<  2),
	DVBFE_ALGO_SEARCH_INVALID	= (1 <<  3),
	DVBFE_ALGO_SEARCH_AGAIN		= (1 <<  4),
	DVBFE_ALGO_SEARCH_ERROR		= (1 << 31),
};


struct dvb_tuner_ops {

	struct dvb_tuner_info info;

	int (*release)(struct dvb_frontend *fe);
	int (*init)(struct dvb_frontend *fe);
	int (*sleep)(struct dvb_frontend *fe);

	/** This is for simple PLLs - set all parameters in one go. */
	int (*set_params)(struct dvb_frontend *fe);
	int (*set_analog_params)(struct dvb_frontend *fe, struct analog_parameters *p);

	/** This is support for demods like the mt352 - fills out the supplied buffer with what to write. */
	int (*calc_regs)(struct dvb_frontend *fe, u8 *buf, int buf_len);

	/** This is to allow setting tuner-specific configs */
	int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);

	int (*get_frequency)(struct dvb_frontend *fe, u32 *frequency);
	int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth);
	int (*get_if_frequency)(struct dvb_frontend *fe, u32 *frequency);

#define TUNER_STATUS_LOCKED 1
#define TUNER_STATUS_STEREO 2
	int (*get_status)(struct dvb_frontend *fe, u32 *status);
	int (*get_rf_strength)(struct dvb_frontend *fe, u16 *strength);
	int (*get_afc)(struct dvb_frontend *fe, s32 *afc);

	/** These are provided separately from set_params in order to facilitate silicon
	 * tuners which require sophisticated tuning loops, controlling each parameter separately. */
	int (*set_frequency)(struct dvb_frontend *fe, u32 frequency);
	int (*set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth);

	/*
	 * These are provided separately from set_params in order to facilitate silicon
	 * tuners which require sophisticated tuning loops, controlling each parameter separately.
	 */
	int (*set_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
	int (*get_state)(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *state);
};

struct analog_demod_info {
	char *name;
};

struct analog_demod_ops {

	struct analog_demod_info info;

	void (*set_params)(struct dvb_frontend *fe,
			   struct analog_parameters *params);
	int  (*has_signal)(struct dvb_frontend *fe);
	int  (*get_afc)(struct dvb_frontend *fe);
	void (*tuner_status)(struct dvb_frontend *fe);
	void (*standby)(struct dvb_frontend *fe);
	void (*release)(struct dvb_frontend *fe);
	int  (*i2c_gate_ctrl)(struct dvb_frontend *fe, int enable);

	/** This is to allow setting tuner-specific configuration */
	int (*set_config)(struct dvb_frontend *fe, void *priv_cfg);
};

struct dtv_frontend_properties;

struct dvb_frontend_ops {

	struct dvb_frontend_info info;

	u8 delsys[MAX_DELSYS];

	void (*release)(struct dvb_frontend* fe);
	void (*release_sec)(struct dvb_frontend* fe);

	int (*init)(struct dvb_frontend* fe);
	int (*sleep)(struct dvb_frontend* fe);

	int (*write)(struct dvb_frontend* fe, const u8 buf[], int len);

	/* if this is set, it overrides the default swzigzag */
	int (*tune)(struct dvb_frontend* fe,
		    bool re_tune,
		    unsigned int mode_flags,
		    unsigned int *delay,
		    fe_status_t *status);
	/* get frontend tuning algorithm from the module */
	enum dvbfe_algo (*get_frontend_algo)(struct dvb_frontend *fe);

	/* these two are only used for the swzigzag code */
	int (*set_frontend)(struct dvb_frontend *fe);
	int (*get_tune_settings)(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* settings);

	int (*get_frontend)(struct dvb_frontend *fe);

	int (*read_status)(struct dvb_frontend* fe, fe_status_t* status);
	int (*read_ber)(struct dvb_frontend* fe, u32* ber);
	int (*read_signal_strength)(struct dvb_frontend* fe, u16* strength);
	int (*read_snr)(struct dvb_frontend* fe, u16* snr);
	int (*read_ucblocks)(struct dvb_frontend* fe, u32* ucblocks);

	int (*diseqc_reset_overload)(struct dvb_frontend* fe);
	int (*diseqc_send_master_cmd)(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd);
	int (*diseqc_recv_slave_reply)(struct dvb_frontend* fe, struct dvb_diseqc_slave_reply* reply);
	int (*diseqc_send_burst)(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd);
	int (*set_tone)(struct dvb_frontend* fe, fe_sec_tone_mode_t tone);
	int (*set_voltage)(struct dvb_frontend* fe, fe_sec_voltage_t voltage);
	int (*enable_high_lnb_voltage)(struct dvb_frontend* fe, long arg);
	int (*dishnetwork_send_legacy_command)(struct dvb_frontend* fe, unsigned long cmd);
	int (*i2c_gate_ctrl)(struct dvb_frontend* fe, int enable);
	int (*ts_bus_ctrl)(struct dvb_frontend* fe, int acquire);
	int (*set_lna)(struct dvb_frontend *);

	/* These callbacks are for devices that implement their own
	 * tuning algorithms, rather than a simple swzigzag
	 */
	enum dvbfe_search (*search)(struct dvb_frontend *fe);

	struct dvb_tuner_ops tuner_ops;
	struct analog_demod_ops analog_ops;

	int (*set_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
	int (*get_property)(struct dvb_frontend* fe, struct dtv_property* tvp);
};

#ifdef __DVB_CORE__
#define MAX_EVENT 8

struct dvb_fe_events {
	struct dvb_frontend_event events[MAX_EVENT];
	int			  eventw;
	int			  eventr;
	int			  overflow;
	wait_queue_head_t	  wait_queue;
	struct mutex		  mtx;
};
#endif

struct dtv_frontend_properties {

	/* Cache State */
	u32			state;

	u32			frequency;
	fe_modulation_t		modulation;

	fe_sec_voltage_t	voltage;
	fe_sec_tone_mode_t	sectone;
	fe_spectral_inversion_t	inversion;
	fe_code_rate_t		fec_inner;
	fe_transmit_mode_t	transmission_mode;
	u32			bandwidth_hz;	/* 0 = AUTO */
	fe_guard_interval_t	guard_interval;
	fe_hierarchy_t		hierarchy;
	u32			symbol_rate;
	fe_code_rate_t		code_rate_HP;
	fe_code_rate_t		code_rate_LP;

	fe_pilot_t		pilot;
	fe_rolloff_t		rolloff;

	fe_delivery_system_t	delivery_system;

	enum fe_interleaving	interleaving;

	/* ISDB-T specifics */
	u8			isdbt_partial_reception;
	u8			isdbt_sb_mode;
	u8			isdbt_sb_subchannel;
	u32			isdbt_sb_segment_idx;
	u32			isdbt_sb_segment_count;
	u8			isdbt_layer_enabled;
	struct {
	    u8			segment_count;
	    fe_code_rate_t	fec;
	    fe_modulation_t	modulation;
	    u8			interleaving;
	} layer[3];

	/* Multistream specifics */
	u32			stream_id;

	/* ATSC-MH specifics */
	u8			atscmh_fic_ver;
	u8			atscmh_parade_id;
	u8			atscmh_nog;
	u8			atscmh_tnog;
	u8			atscmh_sgn;
	u8			atscmh_prc;

	u8			atscmh_rs_frame_mode;
	u8			atscmh_rs_frame_ensemble;
	u8			atscmh_rs_code_mode_pri;
	u8			atscmh_rs_code_mode_sec;
	u8			atscmh_sccc_block_mode;
	u8			atscmh_sccc_code_mode_a;
	u8			atscmh_sccc_code_mode_b;
	u8			atscmh_sccc_code_mode_c;
	u8			atscmh_sccc_code_mode_d;

	u32			lna;

	/* statistics data */
	struct dtv_fe_stats	strength;
	struct dtv_fe_stats	cnr;
	struct dtv_fe_stats	pre_bit_error;
	struct dtv_fe_stats	pre_bit_count;
	struct dtv_fe_stats	post_bit_error;
	struct dtv_fe_stats	post_bit_count;
	struct dtv_fe_stats	block_error;
	struct dtv_fe_stats	block_count;
};

struct dvb_frontend {
	struct dvb_frontend_ops ops;
	struct dvb_adapter *dvb;
	void *demodulator_priv;
	void *tuner_priv;
	void *frontend_priv;
	void *sec_priv;
	void *analog_demod_priv;
	struct dtv_frontend_properties dtv_property_cache;
#define DVB_FRONTEND_COMPONENT_TUNER 0
#define DVB_FRONTEND_COMPONENT_DEMOD 1
	int (*callback)(void *adapter_priv, int component, int cmd, int arg);
	int id;
};

extern int dvb_register_frontend(struct dvb_adapter *dvb,
				 struct dvb_frontend *fe);

extern int dvb_unregister_frontend(struct dvb_frontend *fe);

extern void dvb_frontend_detach(struct dvb_frontend *fe);

extern void dvb_frontend_reinitialise(struct dvb_frontend *fe);
extern int dvb_frontend_suspend(struct dvb_frontend *fe);
extern int dvb_frontend_resume(struct dvb_frontend *fe);

extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec);
extern s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime);

#endif