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1da177e4 LT |
1 | /* |
2 | * dvb_frontend.c: DVB frontend tuning interface/thread | |
3 | * | |
4 | * | |
5 | * Copyright (C) 1999-2001 Ralph Metzler | |
6 | * Marcus Metzler | |
7 | * Holger Waechtler | |
8 | * for convergence integrated media GmbH | |
9 | * | |
10 | * Copyright (C) 2004 Andrew de Quincey (tuning thread cleanup) | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License | |
14 | * as published by the Free Software Foundation; either version 2 | |
15 | * of the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
bcb63314 SA |
21 | * To obtain the license, point your browser to |
22 | * http://www.gnu.org/copyleft/gpl.html | |
1da177e4 LT |
23 | */ |
24 | ||
8de8594a MCC |
25 | /* Enables DVBv3 compatibility bits at the headers */ |
26 | #define __DVB_CORE__ | |
27 | ||
b3ad24d2 MCC |
28 | #define pr_fmt(fmt) "dvb_frontend: " fmt |
29 | ||
1da177e4 LT |
30 | #include <linux/string.h> |
31 | #include <linux/kernel.h> | |
174cd4b1 | 32 | #include <linux/sched/signal.h> |
1da177e4 LT |
33 | #include <linux/wait.h> |
34 | #include <linux/slab.h> | |
35 | #include <linux/poll.h> | |
4c4cb1b1 | 36 | #include <linux/semaphore.h> |
1da177e4 | 37 | #include <linux/module.h> |
1da177e4 | 38 | #include <linux/list.h> |
7dfb7103 | 39 | #include <linux/freezer.h> |
cc89c229 | 40 | #include <linux/jiffies.h> |
8eec1429 | 41 | #include <linux/kthread.h> |
9056a23b | 42 | #include <linux/ktime.h> |
1da177e4 | 43 | #include <asm/processor.h> |
1da177e4 LT |
44 | |
45 | #include "dvb_frontend.h" | |
46 | #include "dvbdev.h" | |
eacf8d8d | 47 | #include <linux/dvb/version.h> |
1da177e4 LT |
48 | |
49 | static int dvb_frontend_debug; | |
849be2cd | 50 | static int dvb_shutdown_timeout; |
1da177e4 LT |
51 | static int dvb_force_auto_inversion; |
52 | static int dvb_override_tune_delay; | |
53 | static int dvb_powerdown_on_sleep = 1; | |
59b1842d | 54 | static int dvb_mfe_wait_time = 5; |
1da177e4 LT |
55 | |
56 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); | |
f4f009a7 | 57 | MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off)."); |
6baad3f0 | 58 | module_param(dvb_shutdown_timeout, int, 0644); |
1da177e4 | 59 | MODULE_PARM_DESC(dvb_shutdown_timeout, "wait <shutdown_timeout> seconds after close() before suspending hardware"); |
6baad3f0 | 60 | module_param(dvb_force_auto_inversion, int, 0644); |
1da177e4 | 61 | MODULE_PARM_DESC(dvb_force_auto_inversion, "0: normal (default), 1: INVERSION_AUTO forced always"); |
6baad3f0 | 62 | module_param(dvb_override_tune_delay, int, 0644); |
1da177e4 | 63 | MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt"); |
6baad3f0 | 64 | module_param(dvb_powerdown_on_sleep, int, 0644); |
a8558577 | 65 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
59b1842d DB |
66 | module_param(dvb_mfe_wait_time, int, 0644); |
67 | MODULE_PARM_DESC(dvb_mfe_wait_time, "Wait up to <mfe_wait_time> seconds on open() for multi-frontend to become available (default:5 seconds)"); | |
1da177e4 | 68 | |
b3ad24d2 MCC |
69 | #define dprintk(fmt, arg...) \ |
70 | printk(KERN_DEBUG pr_fmt("%s: " fmt), __func__, ##arg) | |
71 | ||
1da177e4 LT |
72 | #define FESTATE_IDLE 1 |
73 | #define FESTATE_RETUNE 2 | |
74 | #define FESTATE_TUNING_FAST 4 | |
75 | #define FESTATE_TUNING_SLOW 8 | |
76 | #define FESTATE_TUNED 16 | |
77 | #define FESTATE_ZIGZAG_FAST 32 | |
78 | #define FESTATE_ZIGZAG_SLOW 64 | |
79 | #define FESTATE_DISEQC 128 | |
01886255 | 80 | #define FESTATE_ERROR 256 |
1da177e4 LT |
81 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
82 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) | |
83 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) | |
84 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) | |
0249ef16 | 85 | |
1da177e4 LT |
86 | /* |
87 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. | |
88 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. | |
89 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. | |
90 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. | |
91 | * FESTATE_TUNED. The frontend has successfully locked on. | |
92 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. | |
93 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. | |
94 | * FESTATE_DISEQC. A DISEQC command has just been issued. | |
95 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. | |
96 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. | |
97 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. | |
98 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. | |
99 | */ | |
100 | ||
3593cab5 | 101 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
102 | |
103 | struct dvb_frontend_private { | |
36cb557a | 104 | /* thread/frontend values */ |
1da177e4 | 105 | struct dvb_device *dvbdev; |
a5959dbe | 106 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
107 | struct dvb_fe_events events; |
108 | struct semaphore sem; | |
109 | struct list_head list_head; | |
110 | wait_queue_head_t wait_queue; | |
8eec1429 | 111 | struct task_struct *thread; |
1da177e4 | 112 | unsigned long release_jiffies; |
36cb557a | 113 | unsigned int wakeup; |
0df289a2 | 114 | enum fe_status status; |
400b7083 | 115 | unsigned long tune_mode_flags; |
36cb557a | 116 | unsigned int delay; |
86f40cc3 | 117 | unsigned int reinitialise; |
64454016 AQ |
118 | int tone; |
119 | int voltage; | |
36cb557a AQ |
120 | |
121 | /* swzigzag values */ | |
122 | unsigned int state; | |
123 | unsigned int bending; | |
124 | int lnb_drift; | |
125 | unsigned int inversion; | |
126 | unsigned int auto_step; | |
127 | unsigned int auto_sub_step; | |
128 | unsigned int started_auto_step; | |
129 | unsigned int min_delay; | |
130 | unsigned int max_drift; | |
131 | unsigned int step_size; | |
132 | int quality; | |
133 | unsigned int check_wrapped; | |
c59e7870 | 134 | enum dvbfe_search algo_status; |
135f9be9 MCC |
135 | |
136 | #if defined(CONFIG_MEDIA_CONTROLLER_DVB) | |
137 | struct media_pipeline pipe; | |
135f9be9 | 138 | #endif |
1da177e4 LT |
139 | }; |
140 | ||
1f862a68 MK |
141 | static void dvb_frontend_invoke_release(struct dvb_frontend *fe, |
142 | void (*release)(struct dvb_frontend *fe)); | |
143 | ||
144 | static void dvb_frontend_free(struct kref *ref) | |
fe35637b | 145 | { |
1f862a68 MK |
146 | struct dvb_frontend *fe = |
147 | container_of(ref, struct dvb_frontend, refcount); | |
148 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
149 | ||
150 | dvb_free_device(fepriv->dvbdev); | |
151 | ||
152 | dvb_frontend_invoke_release(fe, fe->ops.release); | |
153 | ||
fe35637b MK |
154 | kfree(fepriv); |
155 | } | |
156 | ||
1f862a68 | 157 | static void dvb_frontend_put(struct dvb_frontend *fe) |
fe35637b | 158 | { |
1f862a68 | 159 | kref_put(&fe->refcount, dvb_frontend_free); |
fe35637b MK |
160 | } |
161 | ||
1f862a68 | 162 | static void dvb_frontend_get(struct dvb_frontend *fe) |
fe35637b | 163 | { |
1f862a68 | 164 | kref_get(&fe->refcount); |
fe35637b MK |
165 | } |
166 | ||
86f40cc3 | 167 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 168 | static int dtv_get_frontend(struct dvb_frontend *fe, |
2ea9a08d | 169 | struct dtv_frontend_properties *c, |
a689e365 | 170 | struct dvb_frontend_parameters *p_out); |
2ea9a08d MCC |
171 | static int |
172 | dtv_property_legacy_params_sync(struct dvb_frontend *fe, | |
173 | const struct dtv_frontend_properties *c, | |
174 | struct dvb_frontend_parameters *p); | |
a689e365 MCC |
175 | |
176 | static bool has_get_frontend(struct dvb_frontend *fe) | |
177 | { | |
c065f5b4 | 178 | return fe->ops.get_frontend != NULL; |
a689e365 | 179 | } |
1da177e4 | 180 | |
5bfaadde MCC |
181 | /* |
182 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
183 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
184 | * otherwise, a DVBv3 call will fail. | |
185 | */ | |
186 | enum dvbv3_emulation_type { | |
187 | DVBV3_UNKNOWN, | |
188 | DVBV3_QPSK, | |
189 | DVBV3_QAM, | |
190 | DVBV3_OFDM, | |
191 | DVBV3_ATSC, | |
192 | }; | |
193 | ||
194 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
195 | { | |
196 | switch (delivery_system) { | |
197 | case SYS_DVBC_ANNEX_A: | |
198 | case SYS_DVBC_ANNEX_C: | |
199 | return DVBV3_QAM; | |
200 | case SYS_DVBS: | |
201 | case SYS_DVBS2: | |
202 | case SYS_TURBO: | |
203 | case SYS_ISDBS: | |
204 | case SYS_DSS: | |
205 | return DVBV3_QPSK; | |
206 | case SYS_DVBT: | |
207 | case SYS_DVBT2: | |
208 | case SYS_ISDBT: | |
224b6642 | 209 | case SYS_DTMB: |
5bfaadde MCC |
210 | return DVBV3_OFDM; |
211 | case SYS_ATSC: | |
ca689488 | 212 | case SYS_ATSCMH: |
5bfaadde MCC |
213 | case SYS_DVBC_ANNEX_B: |
214 | return DVBV3_ATSC; | |
215 | case SYS_UNDEFINED: | |
216 | case SYS_ISDBC: | |
217 | case SYS_DVBH: | |
218 | case SYS_DAB: | |
5bfaadde MCC |
219 | default: |
220 | /* | |
221 | * Doesn't know how to emulate those types and/or | |
222 | * there's no frontend driver from this type yet | |
223 | * with some emulation code, so, we're not sure yet how | |
224 | * to handle them, or they're not compatible with a DVBv3 call. | |
225 | */ | |
226 | return DVBV3_UNKNOWN; | |
227 | } | |
228 | } | |
229 | ||
0df289a2 MCC |
230 | static void dvb_frontend_add_event(struct dvb_frontend *fe, |
231 | enum fe_status status) | |
1da177e4 | 232 | { |
0c53c70f | 233 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
2ea9a08d | 234 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1da177e4 LT |
235 | struct dvb_fe_events *events = &fepriv->events; |
236 | struct dvb_frontend_event *e; | |
237 | int wp; | |
238 | ||
36bdbc3f | 239 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 240 | |
a689e365 | 241 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
2ea9a08d | 242 | dtv_get_frontend(fe, c, &fepriv->parameters_out); |
1da177e4 | 243 | |
77b1e2fb | 244 | mutex_lock(&events->mtx); |
1da177e4 | 245 | |
77b1e2fb | 246 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
247 | if (wp == events->eventr) { |
248 | events->overflow = 1; | |
249 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
250 | } | |
251 | ||
252 | e = &events->events[events->eventw]; | |
77b1e2fb | 253 | e->status = status; |
a5959dbe | 254 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
255 | |
256 | events->eventw = wp; | |
257 | ||
03b76123 | 258 | mutex_unlock(&events->mtx); |
1da177e4 | 259 | |
1da177e4 LT |
260 | wake_up_interruptible (&events->wait_queue); |
261 | } | |
262 | ||
263 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
264 | struct dvb_frontend_event *event, int flags) | |
265 | { | |
0c53c70f | 266 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
267 | struct dvb_fe_events *events = &fepriv->events; |
268 | ||
36bdbc3f | 269 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
270 | |
271 | if (events->overflow) { | |
272 | events->overflow = 0; | |
273 | return -EOVERFLOW; | |
274 | } | |
275 | ||
276 | if (events->eventw == events->eventr) { | |
277 | int ret; | |
278 | ||
279 | if (flags & O_NONBLOCK) | |
280 | return -EWOULDBLOCK; | |
281 | ||
282 | up(&fepriv->sem); | |
283 | ||
284 | ret = wait_event_interruptible (events->wait_queue, | |
285 | events->eventw != events->eventr); | |
286 | ||
287 | if (down_interruptible (&fepriv->sem)) | |
288 | return -ERESTARTSYS; | |
289 | ||
290 | if (ret < 0) | |
291 | return ret; | |
292 | } | |
293 | ||
77b1e2fb AO |
294 | mutex_lock(&events->mtx); |
295 | *event = events->events[events->eventr]; | |
1da177e4 | 296 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 297 | mutex_unlock(&events->mtx); |
1da177e4 LT |
298 | |
299 | return 0; | |
300 | } | |
301 | ||
20640bea AO |
302 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
303 | { | |
304 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
305 | struct dvb_fe_events *events = &fepriv->events; | |
306 | ||
307 | mutex_lock(&events->mtx); | |
308 | events->eventr = events->eventw; | |
309 | mutex_unlock(&events->mtx); | |
310 | } | |
311 | ||
1da177e4 LT |
312 | static void dvb_frontend_init(struct dvb_frontend *fe) |
313 | { | |
36bdbc3f AP |
314 | dev_dbg(fe->dvb->device, |
315 | "%s: initialising adapter %i frontend %i (%s)...\n", | |
316 | __func__, fe->dvb->num, fe->id, fe->ops.info.name); | |
dea74869 PB |
317 | |
318 | if (fe->ops.init) | |
319 | fe->ops.init(fe); | |
320 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
321 | if (fe->ops.i2c_gate_ctrl) |
322 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
323 | fe->ops.tuner_ops.init(fe); |
324 | if (fe->ops.i2c_gate_ctrl) | |
325 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 326 | } |
1da177e4 LT |
327 | } |
328 | ||
86f40cc3 AQ |
329 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
330 | { | |
331 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
332 | ||
333 | fepriv->reinitialise = 1; | |
334 | dvb_frontend_wakeup(fe); | |
335 | } | |
336 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
337 | ||
36cb557a | 338 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 339 | { |
36cb557a | 340 | int q2; |
36bdbc3f | 341 | struct dvb_frontend *fe = fepriv->dvbdev->priv; |
1da177e4 | 342 | |
36bdbc3f | 343 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 344 | |
36cb557a AQ |
345 | if (locked) |
346 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
347 | else | |
348 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 349 | |
36cb557a AQ |
350 | q2 = fepriv->quality - 128; |
351 | q2 *= q2; | |
1da177e4 | 352 | |
36cb557a | 353 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
354 | } |
355 | ||
356 | /** | |
357 | * Performs automatic twiddling of frontend parameters. | |
358 | * | |
359 | * @param fe The frontend concerned. | |
360 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
361 | * @returns Number of complete iterations that have been performed. | |
362 | */ | |
36cb557a | 363 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
364 | { |
365 | int autoinversion; | |
366 | int ready = 0; | |
01886255 | 367 | int fe_set_err = 0; |
0c53c70f | 368 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
369 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
370 | int original_inversion = c->inversion; | |
371 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
372 | |
373 | /* are we using autoinversion? */ | |
dea74869 | 374 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 375 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
376 | |
377 | /* setup parameters correctly */ | |
378 | while(!ready) { | |
379 | /* calculate the lnb_drift */ | |
380 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
381 | ||
382 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
383 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
384 | fepriv->auto_step = 0; | |
385 | fepriv->auto_sub_step = 0; | |
386 | fepriv->lnb_drift = 0; | |
387 | } | |
388 | ||
389 | /* perform inversion and +/- zigzag */ | |
390 | switch(fepriv->auto_sub_step) { | |
391 | case 0: | |
392 | /* try with the current inversion and current drift setting */ | |
393 | ready = 1; | |
394 | break; | |
395 | ||
396 | case 1: | |
397 | if (!autoinversion) break; | |
398 | ||
399 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
400 | ready = 1; | |
401 | break; | |
402 | ||
403 | case 2: | |
404 | if (fepriv->lnb_drift == 0) break; | |
405 | ||
406 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
407 | ready = 1; | |
408 | break; | |
409 | ||
410 | case 3: | |
411 | if (fepriv->lnb_drift == 0) break; | |
412 | if (!autoinversion) break; | |
413 | ||
414 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
415 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
416 | ready = 1; | |
417 | break; | |
418 | ||
419 | default: | |
420 | fepriv->auto_step++; | |
421 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
422 | break; | |
423 | } | |
424 | ||
425 | if (!ready) fepriv->auto_sub_step++; | |
426 | } | |
427 | ||
428 | /* if this attempt would hit where we started, indicate a complete | |
429 | * iteration has occurred */ | |
430 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
431 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
432 | return 1; | |
433 | } | |
434 | ||
36bdbc3f AP |
435 | dev_dbg(fe->dvb->device, "%s: drift:%i inversion:%i auto_step:%i " \ |
436 | "auto_sub_step:%i started_auto_step:%i\n", | |
437 | __func__, fepriv->lnb_drift, fepriv->inversion, | |
438 | fepriv->auto_step, fepriv->auto_sub_step, | |
439 | fepriv->started_auto_step); | |
1da177e4 LT |
440 | |
441 | /* set the frontend itself */ | |
ac3852c4 | 442 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 443 | if (autoinversion) |
ac3852c4 MCC |
444 | c->inversion = fepriv->inversion; |
445 | tmp = *c; | |
dea74869 | 446 | if (fe->ops.set_frontend) |
bc9cd273 | 447 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 448 | *c = tmp; |
01886255 JG |
449 | if (fe_set_err < 0) { |
450 | fepriv->state = FESTATE_ERROR; | |
451 | return fe_set_err; | |
452 | } | |
1da177e4 | 453 | |
ac3852c4 MCC |
454 | c->frequency = original_frequency; |
455 | c->inversion = original_inversion; | |
1da177e4 LT |
456 | |
457 | fepriv->auto_sub_step++; | |
458 | return 0; | |
459 | } | |
460 | ||
36cb557a AQ |
461 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
462 | { | |
0df289a2 | 463 | enum fe_status s = 0; |
01886255 | 464 | int retval = 0; |
36cb557a | 465 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 466 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
467 | |
468 | /* if we've got no parameters, just keep idling */ | |
469 | if (fepriv->state & FESTATE_IDLE) { | |
470 | fepriv->delay = 3*HZ; | |
471 | fepriv->quality = 0; | |
472 | return; | |
473 | } | |
474 | ||
475 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
476 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
477 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 478 | tmp = *c; |
dea74869 | 479 | if (fe->ops.set_frontend) |
bc9cd273 | 480 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 481 | *c = tmp; |
01886255 JG |
482 | if (retval < 0) |
483 | fepriv->state = FESTATE_ERROR; | |
484 | else | |
485 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
486 | } |
487 | fepriv->delay = 3*HZ; | |
488 | fepriv->quality = 0; | |
489 | return; | |
490 | } | |
491 | ||
492 | /* get the frontend status */ | |
493 | if (fepriv->state & FESTATE_RETUNE) { | |
494 | s = 0; | |
495 | } else { | |
dea74869 PB |
496 | if (fe->ops.read_status) |
497 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
498 | if (s != fepriv->status) { |
499 | dvb_frontend_add_event(fe, s); | |
500 | fepriv->status = s; | |
501 | } | |
502 | } | |
503 | ||
504 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
505 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
506 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
507 | fepriv->state = FESTATE_TUNED; | |
508 | ||
509 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 510 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
511 | (c->inversion == INVERSION_AUTO)) { |
512 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
513 | } |
514 | return; | |
515 | } | |
516 | ||
517 | /* if we are tuned already, check we're still locked */ | |
518 | if (fepriv->state & FESTATE_TUNED) { | |
519 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
520 | ||
521 | /* we're tuned, and the lock is still good... */ | |
522 | if (s & FE_HAS_LOCK) { | |
523 | return; | |
524 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
525 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
526 | fepriv->started_auto_step = fepriv->auto_step; | |
527 | fepriv->check_wrapped = 0; | |
528 | } | |
529 | } | |
530 | ||
531 | /* don't actually do anything if we're in the LOSTLOCK state, | |
532 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
533 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 534 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
535 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
536 | return; | |
537 | } | |
538 | ||
539 | /* don't do anything if we're in the DISEQC state, since this | |
540 | * might be someone with a motorized dish controlled by DISEQC. | |
541 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
542 | if (fepriv->state & FESTATE_DISEQC) { | |
543 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
544 | return; | |
545 | } | |
546 | ||
547 | /* if we're in the RETUNE state, set everything up for a brand | |
548 | * new scan, keeping the current inversion setting, as the next | |
549 | * tune is _very_ likely to require the same */ | |
550 | if (fepriv->state & FESTATE_RETUNE) { | |
551 | fepriv->lnb_drift = 0; | |
552 | fepriv->auto_step = 0; | |
553 | fepriv->auto_sub_step = 0; | |
554 | fepriv->started_auto_step = 0; | |
555 | fepriv->check_wrapped = 0; | |
556 | } | |
557 | ||
558 | /* fast zigzag. */ | |
559 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
560 | fepriv->delay = fepriv->min_delay; | |
561 | ||
2030c032 | 562 | /* perform a tune */ |
01886255 JG |
563 | retval = dvb_frontend_swzigzag_autotune(fe, |
564 | fepriv->check_wrapped); | |
565 | if (retval < 0) { | |
566 | return; | |
567 | } else if (retval) { | |
36cb557a AQ |
568 | /* OK, if we've run out of trials at the fast speed. |
569 | * Drop back to slow for the _next_ attempt */ | |
570 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
571 | fepriv->started_auto_step = fepriv->auto_step; | |
572 | return; | |
573 | } | |
574 | fepriv->check_wrapped = 1; | |
575 | ||
576 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
577 | * This ensures we cannot return from an | |
578 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
579 | * occurs */ | |
580 | if (fepriv->state & FESTATE_RETUNE) { | |
581 | fepriv->state = FESTATE_TUNING_FAST; | |
582 | } | |
583 | } | |
584 | ||
585 | /* slow zigzag */ | |
586 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
587 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
588 | ||
589 | /* Note: don't bother checking for wrapping; we stay in this | |
590 | * state until we get a lock */ | |
591 | dvb_frontend_swzigzag_autotune(fe, 0); | |
592 | } | |
593 | } | |
594 | ||
1da177e4 LT |
595 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
596 | { | |
0c53c70f | 597 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 598 | |
18ed2860 | 599 | if (fe->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
600 | return 1; |
601 | ||
602 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 603 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 604 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
605 | return 1; |
606 | ||
607 | return 0; | |
608 | } | |
609 | ||
610 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
611 | { | |
0c53c70f | 612 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
613 | |
614 | if (fepriv->wakeup) { | |
615 | fepriv->wakeup = 0; | |
616 | return 1; | |
617 | } | |
618 | return dvb_frontend_is_exiting(fe); | |
619 | } | |
620 | ||
621 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
622 | { | |
0c53c70f | 623 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
624 | |
625 | fepriv->wakeup = 1; | |
626 | wake_up_interruptible(&fepriv->wait_queue); | |
627 | } | |
628 | ||
1da177e4 LT |
629 | static int dvb_frontend_thread(void *data) |
630 | { | |
0c53c70f | 631 | struct dvb_frontend *fe = data; |
2ea9a08d | 632 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 633 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
0df289a2 | 634 | enum fe_status s; |
c59e7870 | 635 | enum dvbfe_algo algo; |
7e072221 | 636 | bool re_tune = false; |
6ae23224 | 637 | bool semheld = false; |
1da177e4 | 638 | |
36bdbc3f | 639 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 640 | |
36cb557a AQ |
641 | fepriv->check_wrapped = 0; |
642 | fepriv->quality = 0; | |
643 | fepriv->delay = 3*HZ; | |
1da177e4 | 644 | fepriv->status = 0; |
1da177e4 | 645 | fepriv->wakeup = 0; |
04c56d0e AQ |
646 | fepriv->reinitialise = 0; |
647 | ||
648 | dvb_frontend_init(fe); | |
1da177e4 | 649 | |
83144186 | 650 | set_freezable(); |
1da177e4 LT |
651 | while (1) { |
652 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 653 | restart: |
94238e9b | 654 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
655 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
656 | || freezing(current), | |
8eec1429 HP |
657 | fepriv->delay); |
658 | ||
659 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 660 | /* got signal or quitting */ |
6ae23224 JL |
661 | if (!down_interruptible(&fepriv->sem)) |
662 | semheld = true; | |
18ed2860 | 663 | fe->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
664 | break; |
665 | } | |
666 | ||
8eec1429 | 667 | if (try_to_freeze()) |
6591691b | 668 | goto restart; |
1da177e4 LT |
669 | |
670 | if (down_interruptible(&fepriv->sem)) | |
671 | break; | |
672 | ||
86f40cc3 AQ |
673 | if (fepriv->reinitialise) { |
674 | dvb_frontend_init(fe); | |
42f4e774 | 675 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 676 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 677 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 678 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
679 | fepriv->reinitialise = 0; |
680 | } | |
681 | ||
36cb557a | 682 | /* do an iteration of the tuning loop */ |
d772bd03 | 683 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
684 | algo = fe->ops.get_frontend_algo(fe); |
685 | switch (algo) { | |
686 | case DVBFE_ALGO_HW: | |
36bdbc3f | 687 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); |
c59e7870 | 688 | |
d772bd03 | 689 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 690 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 691 | re_tune = true; |
d772bd03 | 692 | fepriv->state = FESTATE_TUNED; |
45145b67 SA |
693 | } else { |
694 | re_tune = false; | |
d772bd03 MA |
695 | } |
696 | ||
c59e7870 | 697 | if (fe->ops.tune) |
7e072221 | 698 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 699 | |
2fac9a0f | 700 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
36bdbc3f | 701 | dev_dbg(fe->dvb->device, "%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
702 | dvb_frontend_add_event(fe, s); |
703 | fepriv->status = s; | |
704 | } | |
c59e7870 MA |
705 | break; |
706 | case DVBFE_ALGO_SW: | |
36bdbc3f | 707 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); |
70d90635 | 708 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
709 | break; |
710 | case DVBFE_ALGO_CUSTOM: | |
36bdbc3f | 711 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
c59e7870 | 712 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 713 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTAT_RETUNE\n", __func__); |
c59e7870 MA |
714 | fepriv->state = FESTATE_TUNED; |
715 | } | |
716 | /* Case where we are going to search for a carrier | |
717 | * User asked us to retune again for some reason, possibly | |
718 | * requesting a search with a new set of parameters | |
719 | */ | |
720 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 721 | if (fe->ops.search) { |
41da5320 | 722 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
723 | /* We did do a search as was requested, the flags are |
724 | * now unset as well and has the flags wrt to search. | |
725 | */ | |
7bcbdf38 AJ |
726 | } else { |
727 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
728 | } | |
c59e7870 MA |
729 | } |
730 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 731 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
732 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
733 | fepriv->delay = HZ / 2; | |
734 | } | |
2ea9a08d | 735 | dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out); |
7bcbdf38 AJ |
736 | fe->ops.read_status(fe, &s); |
737 | if (s != fepriv->status) { | |
738 | dvb_frontend_add_event(fe, s); /* update event list */ | |
739 | fepriv->status = s; | |
740 | if (!(s & FE_HAS_LOCK)) { | |
741 | fepriv->delay = HZ / 10; | |
742 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
743 | } else { | |
744 | fepriv->delay = 60 * HZ; | |
745 | } | |
c59e7870 MA |
746 | } |
747 | break; | |
748 | default: | |
36bdbc3f | 749 | dev_dbg(fe->dvb->device, "%s: UNDEFINED ALGO !\n", __func__); |
c59e7870 MA |
750 | break; |
751 | } | |
752 | } else { | |
4a4edcca | 753 | dvb_frontend_swzigzag(fe); |
c59e7870 | 754 | } |
1da177e4 LT |
755 | } |
756 | ||
608f62d6 OE |
757 | if (dvb_powerdown_on_sleep) { |
758 | if (fe->ops.set_voltage) | |
759 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 760 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
761 | if (fe->ops.i2c_gate_ctrl) |
762 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
763 | fe->ops.tuner_ops.sleep(fe); |
764 | if (fe->ops.i2c_gate_ctrl) | |
765 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 766 | } |
dea74869 PB |
767 | if (fe->ops.sleep) |
768 | fe->ops.sleep(fe); | |
1da177e4 LT |
769 | } |
770 | ||
8eec1429 | 771 | fepriv->thread = NULL; |
e36309f5 | 772 | if (kthread_should_stop()) |
18ed2860 | 773 | fe->exit = DVB_FE_DEVICE_REMOVED; |
e36309f5 | 774 | else |
18ed2860 | 775 | fe->exit = DVB_FE_NO_EXIT; |
1da177e4 LT |
776 | mb(); |
777 | ||
6ae23224 JL |
778 | if (semheld) |
779 | up(&fepriv->sem); | |
1da177e4 LT |
780 | dvb_frontend_wakeup(fe); |
781 | return 0; | |
782 | } | |
783 | ||
784 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
785 | { | |
0c53c70f | 786 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 787 | |
36bdbc3f | 788 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 789 | |
18ed2860 SK |
790 | if (fe->exit != DVB_FE_DEVICE_REMOVED) |
791 | fe->exit = DVB_FE_NORMAL_EXIT; | |
1da177e4 LT |
792 | mb(); |
793 | ||
8eec1429 | 794 | if (!fepriv->thread) |
1da177e4 LT |
795 | return; |
796 | ||
8eec1429 | 797 | kthread_stop(fepriv->thread); |
ca5be9cd | 798 | |
a0a4714c | 799 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
800 | fepriv->state = FESTATE_IDLE; |
801 | ||
802 | /* paranoia check in case a signal arrived */ | |
8eec1429 | 803 | if (fepriv->thread) |
36bdbc3f AP |
804 | dev_warn(fe->dvb->device, |
805 | "dvb_frontend_stop: warning: thread %p won't exit\n", | |
8eec1429 | 806 | fepriv->thread); |
1da177e4 LT |
807 | } |
808 | ||
83b75b04 | 809 | /* |
4deea4cb MCC |
810 | * Sleep for the amount of time given by add_usec parameter |
811 | * | |
812 | * This needs to be as precise as possible, as it affects the detection of | |
813 | * the dish tone command at the satellite subsystem. The precision is improved | |
814 | * by using a scheduled msleep followed by udelay for the remainder. | |
83b75b04 | 815 | */ |
9056a23b | 816 | void dvb_frontend_sleep_until(ktime_t *waketime, u32 add_usec) |
83b75b04 | 817 | { |
a733a41a | 818 | s32 delta; |
83b75b04 | 819 | |
a733a41a | 820 | *waketime = ktime_add_us(*waketime, add_usec); |
6b3f9998 | 821 | delta = ktime_us_delta(ktime_get_boottime(), *waketime); |
83b75b04 N |
822 | if (delta > 2500) { |
823 | msleep((delta - 1500) / 1000); | |
6b3f9998 | 824 | delta = ktime_us_delta(ktime_get_boottime(), *waketime); |
83b75b04 N |
825 | } |
826 | if (delta > 0) | |
827 | udelay(delta); | |
828 | } | |
829 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
830 | ||
1da177e4 LT |
831 | static int dvb_frontend_start(struct dvb_frontend *fe) |
832 | { | |
833 | int ret; | |
0c53c70f | 834 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 835 | struct task_struct *fe_thread; |
1da177e4 | 836 | |
36bdbc3f | 837 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 838 | |
8eec1429 | 839 | if (fepriv->thread) { |
18ed2860 | 840 | if (fe->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
841 | return 0; |
842 | else | |
843 | dvb_frontend_stop (fe); | |
844 | } | |
845 | ||
846 | if (signal_pending(current)) | |
847 | return -EINTR; | |
848 | if (down_interruptible (&fepriv->sem)) | |
849 | return -EINTR; | |
850 | ||
851 | fepriv->state = FESTATE_IDLE; | |
18ed2860 | 852 | fe->exit = DVB_FE_NO_EXIT; |
8eec1429 | 853 | fepriv->thread = NULL; |
1da177e4 LT |
854 | mb(); |
855 | ||
8eec1429 | 856 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 857 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
858 | if (IS_ERR(fe_thread)) { |
859 | ret = PTR_ERR(fe_thread); | |
36bdbc3f AP |
860 | dev_warn(fe->dvb->device, |
861 | "dvb_frontend_start: failed to start kthread (%d)\n", | |
862 | ret); | |
1da177e4 LT |
863 | up(&fepriv->sem); |
864 | return ret; | |
865 | } | |
8eec1429 | 866 | fepriv->thread = fe_thread; |
1da177e4 LT |
867 | return 0; |
868 | } | |
869 | ||
2030c032 | 870 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
871 | u32 *freq_min, u32 *freq_max) |
872 | { | |
873 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
874 | ||
875 | if (fe->ops.info.frequency_max == 0) | |
876 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
877 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
878 | *freq_max = fe->ops.info.frequency_max; | |
879 | else | |
880 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
881 | ||
882 | if (*freq_min == 0 || *freq_max == 0) | |
36bdbc3f AP |
883 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
884 | fe->dvb->num, fe->id); | |
c471b331 OE |
885 | } |
886 | ||
5bfaadde | 887 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 888 | { |
5bfaadde | 889 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
890 | u32 freq_min; |
891 | u32 freq_max; | |
892 | ||
1fab46f0 | 893 | /* range check: frequency */ |
2030c032 | 894 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
895 | if ((freq_min && c->frequency < freq_min) || |
896 | (freq_max && c->frequency > freq_max)) { | |
36bdbc3f AP |
897 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
898 | fe->dvb->num, fe->id, c->frequency, | |
899 | freq_min, freq_max); | |
1fab46f0 OE |
900 | return -EINVAL; |
901 | } | |
902 | ||
903 | /* range check: symbol rate */ | |
5bfaadde MCC |
904 | switch (c->delivery_system) { |
905 | case SYS_DVBS: | |
906 | case SYS_DVBS2: | |
907 | case SYS_TURBO: | |
908 | case SYS_DVBC_ANNEX_A: | |
909 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 910 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 911 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 912 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 913 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
36bdbc3f AP |
914 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
915 | fe->dvb->num, fe->id, c->symbol_rate, | |
916 | fe->ops.info.symbol_rate_min, | |
917 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
918 | return -EINVAL; |
919 | } | |
5bfaadde MCC |
920 | default: |
921 | break; | |
1fab46f0 OE |
922 | } |
923 | ||
924 | return 0; | |
925 | } | |
926 | ||
b6e760f3 PB |
927 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
928 | { | |
50727719 | 929 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 | 930 | int i; |
149709f5 | 931 | u32 delsys; |
b6e760f3 | 932 | |
149709f5 | 933 | delsys = c->delivery_system; |
808d24d6 | 934 | memset(c, 0, offsetof(struct dtv_frontend_properties, strength)); |
149709f5 | 935 | c->delivery_system = delsys; |
50727719 AO |
936 | |
937 | c->state = DTV_CLEAR; | |
26c924fe | 938 | |
36bdbc3f AP |
939 | dev_dbg(fe->dvb->device, "%s: Clearing cache for delivery system %d\n", |
940 | __func__, c->delivery_system); | |
26c924fe | 941 | |
50727719 | 942 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 943 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
944 | c->guard_interval = GUARD_INTERVAL_AUTO; |
945 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 946 | c->symbol_rate = 0; |
50727719 AO |
947 | c->code_rate_HP = FEC_AUTO; |
948 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 949 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 950 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 951 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
952 | c->sectone = SEC_TONE_OFF; |
953 | c->pilot = PILOT_AUTO; | |
50727719 | 954 | |
a520ca97 MCC |
955 | c->isdbt_partial_reception = 0; |
956 | c->isdbt_sb_mode = 0; | |
957 | c->isdbt_sb_subchannel = 0; | |
958 | c->isdbt_sb_segment_idx = 0; | |
959 | c->isdbt_sb_segment_count = 0; | |
960 | c->isdbt_layer_enabled = 0; | |
b6e760f3 | 961 | for (i = 0; i < 3; i++) { |
50727719 AO |
962 | c->layer[i].fec = FEC_AUTO; |
963 | c->layer[i].modulation = QAM_AUTO; | |
a520ca97 MCC |
964 | c->layer[i].interleaving = 0; |
965 | c->layer[i].segment_count = 0; | |
b6e760f3 PB |
966 | } |
967 | ||
287cefd0 | 968 | c->stream_id = NO_STREAM_ID_FILTER; |
26c924fe | 969 | |
5bfaadde MCC |
970 | switch (c->delivery_system) { |
971 | case SYS_DVBS: | |
972 | case SYS_DVBS2: | |
973 | case SYS_TURBO: | |
974 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
975 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
976 | break; | |
977 | case SYS_ATSC: | |
978 | c->modulation = VSB_8; | |
979 | break; | |
8e281faf AT |
980 | case SYS_ISDBS: |
981 | c->symbol_rate = 28860000; | |
982 | c->rolloff = ROLLOFF_35; | |
983 | c->bandwidth_hz = c->symbol_rate / 100 * 135; | |
984 | break; | |
5bfaadde MCC |
985 | default: |
986 | c->modulation = QAM_AUTO; | |
987 | break; | |
988 | } | |
989 | ||
33eebec5 AP |
990 | c->lna = LNA_AUTO; |
991 | ||
b6e760f3 PB |
992 | return 0; |
993 | } | |
994 | ||
995 | #define _DTV_CMD(n, s, b) \ | |
996 | [n] = { \ | |
997 | .name = #n, \ | |
998 | .cmd = n, \ | |
999 | .set = s,\ | |
1000 | .buffer = b \ | |
1001 | } | |
1002 | ||
ec05a642 | 1003 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
1004 | _DTV_CMD(DTV_TUNE, 1, 0), |
1005 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
1006 | |
1007 | /* Set */ | |
06d3a396 MCC |
1008 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
1009 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
1010 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
1011 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
1012 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
1013 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
1014 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
1015 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
1016 | _DTV_CMD(DTV_TONE, 1, 0), | |
1017 | _DTV_CMD(DTV_PILOT, 1, 0), | |
1018 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
1019 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
1020 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
1021 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
1022 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
1023 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
1024 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
224b6642 | 1025 | _DTV_CMD(DTV_INTERLEAVING, 1, 0), |
b6e760f3 PB |
1026 | |
1027 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
1028 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
1029 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1030 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1031 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1032 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1033 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1034 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1035 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1036 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1037 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1038 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1039 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1040 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1041 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1042 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1043 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1044 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1045 | ||
287cefd0 EP |
1046 | _DTV_CMD(DTV_STREAM_ID, 1, 0), |
1047 | _DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0), | |
8a2697ab | 1048 | _DTV_CMD(DTV_LNA, 1, 0), |
98293ef3 | 1049 | |
6b73eeaf | 1050 | /* Get */ |
06d3a396 MCC |
1051 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1052 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
ba2780c7 MA |
1053 | |
1054 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
ca689488 MK |
1055 | |
1056 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 1, 0), | |
1057 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 1, 0), | |
1058 | ||
1059 | _DTV_CMD(DTV_ATSCMH_FIC_VER, 0, 0), | |
ca689488 MK |
1060 | _DTV_CMD(DTV_ATSCMH_NOG, 0, 0), |
1061 | _DTV_CMD(DTV_ATSCMH_TNOG, 0, 0), | |
1062 | _DTV_CMD(DTV_ATSCMH_SGN, 0, 0), | |
1063 | _DTV_CMD(DTV_ATSCMH_PRC, 0, 0), | |
1064 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_MODE, 0, 0), | |
ca689488 MK |
1065 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_PRI, 0, 0), |
1066 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_SEC, 0, 0), | |
1067 | _DTV_CMD(DTV_ATSCMH_SCCC_BLOCK_MODE, 0, 0), | |
1068 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_A, 0, 0), | |
1069 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), | |
1070 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), | |
1071 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), | |
7cd4ece5 MCC |
1072 | |
1073 | /* Statistics API */ | |
1074 | _DTV_CMD(DTV_STAT_SIGNAL_STRENGTH, 0, 0), | |
1075 | _DTV_CMD(DTV_STAT_CNR, 0, 0), | |
1076 | _DTV_CMD(DTV_STAT_PRE_ERROR_BIT_COUNT, 0, 0), | |
1077 | _DTV_CMD(DTV_STAT_PRE_TOTAL_BIT_COUNT, 0, 0), | |
1078 | _DTV_CMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0, 0), | |
1079 | _DTV_CMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0, 0), | |
1080 | _DTV_CMD(DTV_STAT_ERROR_BLOCK_COUNT, 0, 0), | |
1081 | _DTV_CMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0, 0), | |
6b73eeaf ST |
1082 | }; |
1083 | ||
c29ebb64 MCC |
1084 | static void dtv_property_dump(struct dvb_frontend *fe, |
1085 | bool is_set, | |
1086 | struct dtv_property *tvp) | |
6b73eeaf ST |
1087 | { |
1088 | int i; | |
1089 | ||
106ff9e0 | 1090 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
c29ebb64 MCC |
1091 | dev_warn(fe->dvb->device, "%s: %s tvp.cmd = 0x%08x undefined\n", |
1092 | __func__, | |
1093 | is_set ? "SET" : "GET", | |
1094 | tvp->cmd); | |
4aae8efb DB |
1095 | return; |
1096 | } | |
1097 | ||
c29ebb64 MCC |
1098 | dev_dbg(fe->dvb->device, "%s: %s tvp.cmd = 0x%08x (%s)\n", __func__, |
1099 | is_set ? "SET" : "GET", | |
1100 | tvp->cmd, | |
1101 | dtv_cmds[tvp->cmd].name); | |
6b73eeaf | 1102 | |
36bdbc3f AP |
1103 | if (dtv_cmds[tvp->cmd].buffer) { |
1104 | dev_dbg(fe->dvb->device, "%s: tvp.u.buffer.len = 0x%02x\n", | |
1105 | __func__, tvp->u.buffer.len); | |
6b73eeaf ST |
1106 | |
1107 | for(i = 0; i < tvp->u.buffer.len; i++) | |
36bdbc3f AP |
1108 | dev_dbg(fe->dvb->device, |
1109 | "%s: tvp.u.buffer.data[0x%02x] = 0x%02x\n", | |
1110 | __func__, i, tvp->u.buffer.data[i]); | |
1111 | } else { | |
1112 | dev_dbg(fe->dvb->device, "%s: tvp.u.data = 0x%08x\n", __func__, | |
1113 | tvp->u.data); | |
1114 | } | |
6b73eeaf ST |
1115 | } |
1116 | ||
ee33c525 ST |
1117 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1118 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1119 | * it's being used for the legacy or new API, reducing code and complexity. | |
1120 | */ | |
5bfaadde MCC |
1121 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1122 | struct dtv_frontend_properties *c, | |
1123 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1124 | { |
ee33c525 ST |
1125 | c->frequency = p->frequency; |
1126 | c->inversion = p->inversion; | |
1127 | ||
5bfaadde MCC |
1128 | switch (dvbv3_type(c->delivery_system)) { |
1129 | case DVBV3_QPSK: | |
36bdbc3f | 1130 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
ee33c525 ST |
1131 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1132 | c->fec_inner = p->u.qpsk.fec_inner; | |
1133 | break; | |
5bfaadde | 1134 | case DVBV3_QAM: |
36bdbc3f | 1135 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
ee33c525 ST |
1136 | c->symbol_rate = p->u.qam.symbol_rate; |
1137 | c->fec_inner = p->u.qam.fec_inner; | |
1138 | c->modulation = p->u.qam.modulation; | |
1139 | break; | |
5bfaadde | 1140 | case DVBV3_OFDM: |
36bdbc3f AP |
1141 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
1142 | ||
9a27e6a0 MCC |
1143 | switch (p->u.ofdm.bandwidth) { |
1144 | case BANDWIDTH_10_MHZ: | |
1145 | c->bandwidth_hz = 10000000; | |
1146 | break; | |
1147 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1148 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1149 | break; |
1150 | case BANDWIDTH_7_MHZ: | |
1151 | c->bandwidth_hz = 7000000; | |
1152 | break; | |
1153 | case BANDWIDTH_6_MHZ: | |
1154 | c->bandwidth_hz = 6000000; | |
1155 | break; | |
1156 | case BANDWIDTH_5_MHZ: | |
1157 | c->bandwidth_hz = 5000000; | |
1158 | break; | |
1159 | case BANDWIDTH_1_712_MHZ: | |
1160 | c->bandwidth_hz = 1712000; | |
1161 | break; | |
1162 | case BANDWIDTH_AUTO: | |
75b7f943 | 1163 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1164 | } |
1165 | ||
ee33c525 ST |
1166 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1167 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1168 | c->modulation = p->u.ofdm.constellation; | |
1169 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1170 | c->guard_interval = p->u.ofdm.guard_interval; | |
1171 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1172 | break; | |
5bfaadde | 1173 | case DVBV3_ATSC: |
36bdbc3f | 1174 | dev_dbg(fe->dvb->device, "%s: Preparing ATSC req\n", __func__); |
ee33c525 | 1175 | c->modulation = p->u.vsb.modulation; |
ca689488 MK |
1176 | if (c->delivery_system == SYS_ATSCMH) |
1177 | break; | |
80a773c9 ST |
1178 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1179 | c->delivery_system = SYS_ATSC; | |
1180 | else | |
1181 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1182 | break; |
5bfaadde | 1183 | case DVBV3_UNKNOWN: |
36bdbc3f AP |
1184 | dev_err(fe->dvb->device, |
1185 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1186 | __func__, c->delivery_system); | |
5bfaadde | 1187 | return -EINVAL; |
ee33c525 | 1188 | } |
5bfaadde MCC |
1189 | |
1190 | return 0; | |
ee33c525 ST |
1191 | } |
1192 | ||
d5748f10 ST |
1193 | /* Ensure the cached values are set correctly in the frontend |
1194 | * legacy tuning structures, for the advanced tuning API. | |
1195 | */ | |
2ea9a08d MCC |
1196 | static int |
1197 | dtv_property_legacy_params_sync(struct dvb_frontend *fe, | |
1198 | const struct dtv_frontend_properties *c, | |
1199 | struct dvb_frontend_parameters *p) | |
6b73eeaf | 1200 | { |
d5748f10 ST |
1201 | p->frequency = c->frequency; |
1202 | p->inversion = c->inversion; | |
6b73eeaf | 1203 | |
5bfaadde MCC |
1204 | switch (dvbv3_type(c->delivery_system)) { |
1205 | case DVBV3_UNKNOWN: | |
36bdbc3f AP |
1206 | dev_err(fe->dvb->device, |
1207 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1208 | __func__, c->delivery_system); | |
5bfaadde MCC |
1209 | return -EINVAL; |
1210 | case DVBV3_QPSK: | |
36bdbc3f | 1211 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
d5748f10 ST |
1212 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1213 | p->u.qpsk.fec_inner = c->fec_inner; | |
1214 | break; | |
5bfaadde | 1215 | case DVBV3_QAM: |
36bdbc3f | 1216 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
d5748f10 ST |
1217 | p->u.qam.symbol_rate = c->symbol_rate; |
1218 | p->u.qam.fec_inner = c->fec_inner; | |
1219 | p->u.qam.modulation = c->modulation; | |
1220 | break; | |
5bfaadde | 1221 | case DVBV3_OFDM: |
36bdbc3f | 1222 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
9a27e6a0 MCC |
1223 | switch (c->bandwidth_hz) { |
1224 | case 10000000: | |
1225 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1226 | break; | |
1227 | case 8000000: | |
75b7f943 | 1228 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1229 | break; |
1230 | case 7000000: | |
1231 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1232 | break; | |
1233 | case 6000000: | |
1234 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1235 | break; | |
1236 | case 5000000: | |
1237 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1238 | break; | |
1239 | case 1712000: | |
1240 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1241 | break; | |
1242 | case 0: | |
1243 | default: | |
75b7f943 | 1244 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1245 | } |
d5748f10 ST |
1246 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1247 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1248 | p->u.ofdm.constellation = c->modulation; | |
1249 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1250 | p->u.ofdm.guard_interval = c->guard_interval; | |
1251 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1252 | break; | |
5bfaadde | 1253 | case DVBV3_ATSC: |
36bdbc3f | 1254 | dev_dbg(fe->dvb->device, "%s: Preparing VSB req\n", __func__); |
d5748f10 ST |
1255 | p->u.vsb.modulation = c->modulation; |
1256 | break; | |
1257 | } | |
5bfaadde | 1258 | return 0; |
6b73eeaf ST |
1259 | } |
1260 | ||
a689e365 MCC |
1261 | /** |
1262 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1263 | * @fe: struct dvb_frontend pointer | |
1264 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1265 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1266 | * | |
1267 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1268 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1269 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1270 | */ | |
1271 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
2ea9a08d | 1272 | struct dtv_frontend_properties *c, |
a689e365 MCC |
1273 | struct dvb_frontend_parameters *p_out) |
1274 | { | |
a689e365 MCC |
1275 | int r; |
1276 | ||
a689e365 | 1277 | if (fe->ops.get_frontend) { |
7e3e68bc | 1278 | r = fe->ops.get_frontend(fe, c); |
a689e365 MCC |
1279 | if (unlikely(r < 0)) |
1280 | return r; | |
7c61d80a | 1281 | if (p_out) |
2ea9a08d | 1282 | dtv_property_legacy_params_sync(fe, c, p_out); |
a689e365 MCC |
1283 | return 0; |
1284 | } | |
1285 | ||
7c61d80a | 1286 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1287 | return 0; |
a689e365 MCC |
1288 | } |
1289 | ||
16ef8def | 1290 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1291 | unsigned int cmd, void *parg); |
16ef8def | 1292 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1293 | unsigned int cmd, void *parg); |
1294 | ||
072ce0c5 | 1295 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1296 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1297 | struct dtv_property *tvp, |
16ef8def | 1298 | struct file *file) |
363429a0 | 1299 | { |
5bfaadde | 1300 | int r, ncaps; |
bfbf2dae | 1301 | |
363429a0 | 1302 | switch(tvp->cmd) { |
ba2780c7 | 1303 | case DTV_ENUM_DELSYS: |
5bfaadde | 1304 | ncaps = 0; |
0123f29c | 1305 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
5bfaadde MCC |
1306 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; |
1307 | ncaps++; | |
1308 | } | |
1309 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1310 | break; |
363429a0 | 1311 | case DTV_FREQUENCY: |
50727719 | 1312 | tvp->u.data = c->frequency; |
363429a0 ST |
1313 | break; |
1314 | case DTV_MODULATION: | |
50727719 | 1315 | tvp->u.data = c->modulation; |
363429a0 | 1316 | break; |
75b7f943 | 1317 | case DTV_BANDWIDTH_HZ: |
50727719 | 1318 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1319 | break; |
1320 | case DTV_INVERSION: | |
50727719 | 1321 | tvp->u.data = c->inversion; |
363429a0 ST |
1322 | break; |
1323 | case DTV_SYMBOL_RATE: | |
50727719 | 1324 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1325 | break; |
1326 | case DTV_INNER_FEC: | |
50727719 | 1327 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1328 | break; |
1329 | case DTV_PILOT: | |
50727719 | 1330 | tvp->u.data = c->pilot; |
363429a0 ST |
1331 | break; |
1332 | case DTV_ROLLOFF: | |
50727719 | 1333 | tvp->u.data = c->rolloff; |
363429a0 ST |
1334 | break; |
1335 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1336 | tvp->u.data = c->delivery_system; |
363429a0 | 1337 | break; |
363429a0 | 1338 | case DTV_VOLTAGE: |
50727719 | 1339 | tvp->u.data = c->voltage; |
363429a0 ST |
1340 | break; |
1341 | case DTV_TONE: | |
50727719 | 1342 | tvp->u.data = c->sectone; |
363429a0 | 1343 | break; |
eacf8d8d ST |
1344 | case DTV_API_VERSION: |
1345 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1346 | break; | |
a4de91be | 1347 | case DTV_CODE_RATE_HP: |
50727719 | 1348 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1349 | break; |
1350 | case DTV_CODE_RATE_LP: | |
50727719 | 1351 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1352 | break; |
b87625f0 | 1353 | case DTV_GUARD_INTERVAL: |
50727719 | 1354 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1355 | break; |
1356 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1357 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1358 | break; |
ef526f42 | 1359 | case DTV_HIERARCHY: |
50727719 | 1360 | tvp->u.data = c->hierarchy; |
ef526f42 | 1361 | break; |
224b6642 AP |
1362 | case DTV_INTERLEAVING: |
1363 | tvp->u.data = c->interleaving; | |
1364 | break; | |
b6e760f3 PB |
1365 | |
1366 | /* ISDB-T Support here */ | |
1367 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1368 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1369 | break; |
1370 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1371 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1372 | break; |
1373 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1374 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1375 | break; |
1376 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1377 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1378 | break; |
1379 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1380 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1381 | break; |
e7b7949a | 1382 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1383 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1384 | break; |
b6e760f3 | 1385 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1386 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1387 | break; |
1388 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1389 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1390 | break; |
1391 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1392 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1393 | break; |
1394 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1395 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1396 | break; |
1397 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1398 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1399 | break; |
1400 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1401 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1402 | break; |
1403 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1404 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1405 | break; |
1406 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1407 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1408 | break; |
1409 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1410 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1411 | break; |
1412 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1413 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1414 | break; |
1415 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1416 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1417 | break; |
1418 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1419 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1420 | break; |
287cefd0 EP |
1421 | |
1422 | /* Multistream support */ | |
1423 | case DTV_STREAM_ID: | |
1424 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1425 | tvp->u.data = c->stream_id; | |
94d56ffa | 1426 | break; |
ca689488 MK |
1427 | |
1428 | /* ATSC-MH */ | |
1429 | case DTV_ATSCMH_FIC_VER: | |
1430 | tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver; | |
1431 | break; | |
1432 | case DTV_ATSCMH_PARADE_ID: | |
1433 | tvp->u.data = fe->dtv_property_cache.atscmh_parade_id; | |
1434 | break; | |
1435 | case DTV_ATSCMH_NOG: | |
1436 | tvp->u.data = fe->dtv_property_cache.atscmh_nog; | |
1437 | break; | |
1438 | case DTV_ATSCMH_TNOG: | |
1439 | tvp->u.data = fe->dtv_property_cache.atscmh_tnog; | |
1440 | break; | |
1441 | case DTV_ATSCMH_SGN: | |
1442 | tvp->u.data = fe->dtv_property_cache.atscmh_sgn; | |
1443 | break; | |
1444 | case DTV_ATSCMH_PRC: | |
1445 | tvp->u.data = fe->dtv_property_cache.atscmh_prc; | |
1446 | break; | |
1447 | case DTV_ATSCMH_RS_FRAME_MODE: | |
1448 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_mode; | |
1449 | break; | |
1450 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1451 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_ensemble; | |
1452 | break; | |
1453 | case DTV_ATSCMH_RS_CODE_MODE_PRI: | |
1454 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_pri; | |
1455 | break; | |
1456 | case DTV_ATSCMH_RS_CODE_MODE_SEC: | |
1457 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_sec; | |
1458 | break; | |
1459 | case DTV_ATSCMH_SCCC_BLOCK_MODE: | |
1460 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_block_mode; | |
1461 | break; | |
1462 | case DTV_ATSCMH_SCCC_CODE_MODE_A: | |
1463 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_a; | |
1464 | break; | |
1465 | case DTV_ATSCMH_SCCC_CODE_MODE_B: | |
1466 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_b; | |
1467 | break; | |
1468 | case DTV_ATSCMH_SCCC_CODE_MODE_C: | |
1469 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_c; | |
1470 | break; | |
1471 | case DTV_ATSCMH_SCCC_CODE_MODE_D: | |
1472 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; | |
1473 | break; | |
ca689488 | 1474 | |
33eebec5 AP |
1475 | case DTV_LNA: |
1476 | tvp->u.data = c->lna; | |
1477 | break; | |
1478 | ||
7cd4ece5 MCC |
1479 | /* Fill quality measures */ |
1480 | case DTV_STAT_SIGNAL_STRENGTH: | |
1481 | tvp->u.st = c->strength; | |
1482 | break; | |
1483 | case DTV_STAT_CNR: | |
1484 | tvp->u.st = c->cnr; | |
1485 | break; | |
1486 | case DTV_STAT_PRE_ERROR_BIT_COUNT: | |
1487 | tvp->u.st = c->pre_bit_error; | |
1488 | break; | |
1489 | case DTV_STAT_PRE_TOTAL_BIT_COUNT: | |
1490 | tvp->u.st = c->pre_bit_count; | |
1491 | break; | |
1492 | case DTV_STAT_POST_ERROR_BIT_COUNT: | |
1493 | tvp->u.st = c->post_bit_error; | |
1494 | break; | |
1495 | case DTV_STAT_POST_TOTAL_BIT_COUNT: | |
1496 | tvp->u.st = c->post_bit_count; | |
1497 | break; | |
1498 | case DTV_STAT_ERROR_BLOCK_COUNT: | |
1499 | tvp->u.st = c->block_error; | |
1500 | break; | |
1501 | case DTV_STAT_TOTAL_BLOCK_COUNT: | |
1502 | tvp->u.st = c->block_count; | |
1503 | break; | |
363429a0 | 1504 | default: |
94a93e5f MCC |
1505 | dev_dbg(fe->dvb->device, |
1506 | "%s: FE property %d doesn't exist\n", | |
1507 | __func__, tvp->cmd); | |
aff8ab5c | 1508 | return -EINVAL; |
363429a0 ST |
1509 | } |
1510 | ||
e23d9ae3 AO |
1511 | /* Allow the frontend to override outgoing properties */ |
1512 | if (fe->ops.get_property) { | |
1513 | r = fe->ops.get_property(fe, tvp); | |
1514 | if (r < 0) | |
1515 | return r; | |
1516 | } | |
1517 | ||
c29ebb64 | 1518 | dtv_property_dump(fe, false, tvp); |
639544d7 | 1519 | |
aff8ab5c | 1520 | return 0; |
363429a0 ST |
1521 | } |
1522 | ||
5bfaadde MCC |
1523 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1524 | ||
04be0f76 MCC |
1525 | static bool is_dvbv3_delsys(u32 delsys) |
1526 | { | |
29a8d979 MY |
1527 | return (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || |
1528 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
04be0f76 MCC |
1529 | } |
1530 | ||
52dee392 MCC |
1531 | /** |
1532 | * emulate_delivery_system - emulate a DVBv5 delivery system with a DVBv3 type | |
1533 | * @fe: struct frontend; | |
1534 | * @delsys: DVBv5 type that will be used for emulation | |
1535 | * | |
1536 | * Provides emulation for delivery systems that are compatible with the old | |
1537 | * DVBv3 call. Among its usages, it provices support for ISDB-T, and allows | |
1538 | * using a DVB-S2 only frontend just like it were a DVB-S, if the frontent | |
1539 | * parameters are compatible with DVB-S spec. | |
1540 | */ | |
1541 | static int emulate_delivery_system(struct dvb_frontend *fe, u32 delsys) | |
04be0f76 | 1542 | { |
be431b16 | 1543 | int i; |
04be0f76 | 1544 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
04be0f76 | 1545 | |
3626479e MCC |
1546 | c->delivery_system = delsys; |
1547 | ||
04be0f76 | 1548 | /* |
52dee392 | 1549 | * If the call is for ISDB-T, put it into full-seg, auto mode, TV |
04be0f76 | 1550 | */ |
52dee392 MCC |
1551 | if (c->delivery_system == SYS_ISDBT) { |
1552 | dev_dbg(fe->dvb->device, | |
1553 | "%s: Using defaults for SYS_ISDBT\n", | |
1554 | __func__); | |
04be0f76 | 1555 | |
52dee392 MCC |
1556 | if (!c->bandwidth_hz) |
1557 | c->bandwidth_hz = 6000000; | |
1558 | ||
1559 | c->isdbt_partial_reception = 0; | |
1560 | c->isdbt_sb_mode = 0; | |
1561 | c->isdbt_sb_subchannel = 0; | |
1562 | c->isdbt_sb_segment_idx = 0; | |
1563 | c->isdbt_sb_segment_count = 0; | |
1564 | c->isdbt_layer_enabled = 7; | |
1565 | for (i = 0; i < 3; i++) { | |
1566 | c->layer[i].fec = FEC_AUTO; | |
1567 | c->layer[i].modulation = QAM_AUTO; | |
1568 | c->layer[i].interleaving = 0; | |
1569 | c->layer[i].segment_count = 0; | |
04be0f76 MCC |
1570 | } |
1571 | } | |
36bdbc3f | 1572 | dev_dbg(fe->dvb->device, "%s: change delivery system on cache to %d\n", |
52dee392 | 1573 | __func__, c->delivery_system); |
9474c5e6 | 1574 | |
04be0f76 MCC |
1575 | return 0; |
1576 | } | |
1577 | ||
52dee392 MCC |
1578 | /** |
1579 | * dvbv5_set_delivery_system - Sets the delivery system for a DVBv5 API call | |
1580 | * @fe: frontend struct | |
1581 | * @desired_system: delivery system requested by the user | |
1582 | * | |
1583 | * A DVBv5 call know what's the desired system it wants. So, set it. | |
1584 | * | |
1585 | * There are, however, a few known issues with early DVBv5 applications that | |
1586 | * are also handled by this logic: | |
1587 | * | |
1588 | * 1) Some early apps use SYS_UNDEFINED as the desired delivery system. | |
1589 | * This is an API violation, but, as we don't want to break userspace, | |
1590 | * convert it to the first supported delivery system. | |
1591 | * 2) Some apps might be using a DVBv5 call in a wrong way, passing, for | |
1592 | * example, SYS_DVBT instead of SYS_ISDBT. This is because early usage of | |
1593 | * ISDB-T provided backward compat with DVB-T. | |
1594 | */ | |
be431b16 MCC |
1595 | static int dvbv5_set_delivery_system(struct dvb_frontend *fe, |
1596 | u32 desired_system) | |
1597 | { | |
1598 | int ncaps; | |
1599 | u32 delsys = SYS_UNDEFINED; | |
1600 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1601 | enum dvbv3_emulation_type type; | |
1602 | ||
1603 | /* | |
1604 | * It was reported that some old DVBv5 applications were | |
1605 | * filling delivery_system with SYS_UNDEFINED. If this happens, | |
1606 | * assume that the application wants to use the first supported | |
1607 | * delivery system. | |
1608 | */ | |
52dee392 MCC |
1609 | if (desired_system == SYS_UNDEFINED) |
1610 | desired_system = fe->ops.delsys[0]; | |
be431b16 MCC |
1611 | |
1612 | /* | |
52dee392 MCC |
1613 | * This is a DVBv5 call. So, it likely knows the supported |
1614 | * delivery systems. So, check if the desired delivery system is | |
1615 | * supported | |
1616 | */ | |
be431b16 | 1617 | ncaps = 0; |
0123f29c | 1618 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
be431b16 MCC |
1619 | if (fe->ops.delsys[ncaps] == desired_system) { |
1620 | c->delivery_system = desired_system; | |
1621 | dev_dbg(fe->dvb->device, | |
1622 | "%s: Changing delivery system to %d\n", | |
1623 | __func__, desired_system); | |
1624 | return 0; | |
1625 | } | |
1626 | ncaps++; | |
1627 | } | |
1628 | ||
1629 | /* | |
52dee392 MCC |
1630 | * The requested delivery system isn't supported. Maybe userspace |
1631 | * is requesting a DVBv3 compatible delivery system. | |
1632 | * | |
1633 | * The emulation only works if the desired system is one of the | |
1634 | * delivery systems supported by DVBv3 API | |
be431b16 | 1635 | */ |
be431b16 MCC |
1636 | if (!is_dvbv3_delsys(desired_system)) { |
1637 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1638 | "%s: Delivery system %d not supported.\n", |
1639 | __func__, desired_system); | |
be431b16 MCC |
1640 | return -EINVAL; |
1641 | } | |
1642 | ||
52dee392 MCC |
1643 | type = dvbv3_type(desired_system); |
1644 | ||
be431b16 MCC |
1645 | /* |
1646 | * Get the last non-DVBv3 delivery system that has the same type | |
1647 | * of the desired system | |
1648 | */ | |
1649 | ncaps = 0; | |
0123f29c | 1650 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
52dee392 | 1651 | if (dvbv3_type(fe->ops.delsys[ncaps]) == type) |
be431b16 MCC |
1652 | delsys = fe->ops.delsys[ncaps]; |
1653 | ncaps++; | |
1654 | } | |
52dee392 | 1655 | |
be431b16 MCC |
1656 | /* There's nothing compatible with the desired delivery system */ |
1657 | if (delsys == SYS_UNDEFINED) { | |
1658 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1659 | "%s: Delivery system %d not supported on emulation mode.\n", |
1660 | __func__, desired_system); | |
be431b16 MCC |
1661 | return -EINVAL; |
1662 | } | |
1663 | ||
52dee392 MCC |
1664 | dev_dbg(fe->dvb->device, |
1665 | "%s: Using delivery system %d emulated as if it were %d\n", | |
1666 | __func__, delsys, desired_system); | |
1667 | ||
1668 | return emulate_delivery_system(fe, desired_system); | |
be431b16 MCC |
1669 | } |
1670 | ||
52dee392 MCC |
1671 | /** |
1672 | * dvbv3_set_delivery_system - Sets the delivery system for a DVBv3 API call | |
1673 | * @fe: frontend struct | |
1674 | * | |
1675 | * A DVBv3 call doesn't know what's the desired system it wants. It also | |
1676 | * doesn't allow to switch between different types. Due to that, userspace | |
1677 | * should use DVBv5 instead. | |
1678 | * However, in order to avoid breaking userspace API, limited backward | |
1679 | * compatibility support is provided. | |
1680 | * | |
1681 | * There are some delivery systems that are incompatible with DVBv3 calls. | |
1682 | * | |
1683 | * This routine should work fine for frontends that support just one delivery | |
1684 | * system. | |
1685 | * | |
1686 | * For frontends that support multiple frontends: | |
1687 | * 1) It defaults to use the first supported delivery system. There's an | |
1688 | * userspace application that allows changing it at runtime; | |
1689 | * | |
1690 | * 2) If the current delivery system is not compatible with DVBv3, it gets | |
1691 | * the first one that it is compatible. | |
1692 | * | |
1693 | * NOTE: in order for this to work with applications like Kaffeine that | |
1694 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to | |
1695 | * DVB-S, drivers that support both DVB-S and DVB-S2 should have the | |
1696 | * SYS_DVBS entry before the SYS_DVBS2, otherwise it won't switch back | |
1697 | * to DVB-S. | |
1698 | */ | |
be431b16 MCC |
1699 | static int dvbv3_set_delivery_system(struct dvb_frontend *fe) |
1700 | { | |
1701 | int ncaps; | |
be431b16 MCC |
1702 | u32 delsys = SYS_UNDEFINED; |
1703 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
be431b16 MCC |
1704 | |
1705 | /* If not set yet, defaults to the first supported delivery system */ | |
1706 | if (c->delivery_system == SYS_UNDEFINED) | |
1707 | c->delivery_system = fe->ops.delsys[0]; | |
1708 | ||
be431b16 MCC |
1709 | /* |
1710 | * Trivial case: just use the current one, if it already a DVBv3 | |
1711 | * delivery system | |
1712 | */ | |
1713 | if (is_dvbv3_delsys(c->delivery_system)) { | |
1714 | dev_dbg(fe->dvb->device, | |
1715 | "%s: Using delivery system to %d\n", | |
1716 | __func__, c->delivery_system); | |
1717 | return 0; | |
1718 | } | |
1719 | ||
be431b16 | 1720 | /* |
52dee392 MCC |
1721 | * Seek for the first delivery system that it is compatible with a |
1722 | * DVBv3 standard | |
be431b16 MCC |
1723 | */ |
1724 | ncaps = 0; | |
0123f29c | 1725 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
52dee392 MCC |
1726 | if (dvbv3_type(fe->ops.delsys[ncaps]) != DVBV3_UNKNOWN) { |
1727 | delsys = fe->ops.delsys[ncaps]; | |
be431b16 MCC |
1728 | break; |
1729 | } | |
1730 | ncaps++; | |
1731 | } | |
1732 | if (delsys == SYS_UNDEFINED) { | |
52dee392 MCC |
1733 | dev_dbg(fe->dvb->device, |
1734 | "%s: Couldn't find a delivery system that works with FE_SET_FRONTEND\n", | |
1735 | __func__); | |
1736 | return -EINVAL; | |
be431b16 | 1737 | } |
52dee392 | 1738 | return emulate_delivery_system(fe, delsys); |
be431b16 MCC |
1739 | } |
1740 | ||
072ce0c5 MCC |
1741 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1742 | struct dtv_property *tvp, | |
072ce0c5 | 1743 | struct file *file) |
6b73eeaf ST |
1744 | { |
1745 | int r = 0; | |
50727719 | 1746 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1747 | |
bfbf2dae | 1748 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1749 | if (fe->ops.set_property) { |
bfbf2dae | 1750 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1751 | if (r < 0) |
1752 | return r; | |
1753 | } | |
bfbf2dae | 1754 | |
c29ebb64 MCC |
1755 | dtv_property_dump(fe, true, tvp); |
1756 | ||
6b73eeaf | 1757 | switch(tvp->cmd) { |
e7fee0f3 | 1758 | case DTV_CLEAR: |
5bfaadde MCC |
1759 | /* |
1760 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1761 | * not effect hardware. |
1762 | */ | |
b6e760f3 | 1763 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1764 | break; |
e7fee0f3 | 1765 | case DTV_TUNE: |
6b73eeaf | 1766 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1767 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1768 | * ioctl. | |
6b73eeaf | 1769 | */ |
50727719 | 1770 | c->state = tvp->cmd; |
36bdbc3f AP |
1771 | dev_dbg(fe->dvb->device, "%s: Finalised property cache\n", |
1772 | __func__); | |
d5748f10 | 1773 | |
5bfaadde | 1774 | r = dtv_set_frontend(fe); |
6b73eeaf | 1775 | break; |
363429a0 | 1776 | case DTV_FREQUENCY: |
50727719 | 1777 | c->frequency = tvp->u.data; |
6b73eeaf | 1778 | break; |
363429a0 | 1779 | case DTV_MODULATION: |
50727719 | 1780 | c->modulation = tvp->u.data; |
6b73eeaf | 1781 | break; |
75b7f943 | 1782 | case DTV_BANDWIDTH_HZ: |
50727719 | 1783 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1784 | break; |
363429a0 | 1785 | case DTV_INVERSION: |
50727719 | 1786 | c->inversion = tvp->u.data; |
6b73eeaf | 1787 | break; |
363429a0 | 1788 | case DTV_SYMBOL_RATE: |
50727719 | 1789 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1790 | break; |
363429a0 | 1791 | case DTV_INNER_FEC: |
50727719 | 1792 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1793 | break; |
363429a0 | 1794 | case DTV_PILOT: |
50727719 | 1795 | c->pilot = tvp->u.data; |
6b73eeaf | 1796 | break; |
363429a0 | 1797 | case DTV_ROLLOFF: |
50727719 | 1798 | c->rolloff = tvp->u.data; |
6b73eeaf | 1799 | break; |
363429a0 | 1800 | case DTV_DELIVERY_SYSTEM: |
be431b16 | 1801 | r = dvbv5_set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1802 | break; |
363429a0 | 1803 | case DTV_VOLTAGE: |
50727719 | 1804 | c->voltage = tvp->u.data; |
16ef8def | 1805 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1806 | (void *)c->voltage); |
13c97bf5 | 1807 | break; |
363429a0 | 1808 | case DTV_TONE: |
50727719 | 1809 | c->sectone = tvp->u.data; |
16ef8def | 1810 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1811 | (void *)c->sectone); |
13c97bf5 | 1812 | break; |
a4de91be | 1813 | case DTV_CODE_RATE_HP: |
50727719 | 1814 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1815 | break; |
1816 | case DTV_CODE_RATE_LP: | |
50727719 | 1817 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1818 | break; |
b87625f0 | 1819 | case DTV_GUARD_INTERVAL: |
50727719 | 1820 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1821 | break; |
1822 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1823 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1824 | break; |
ef526f42 | 1825 | case DTV_HIERARCHY: |
50727719 | 1826 | c->hierarchy = tvp->u.data; |
ef526f42 | 1827 | break; |
224b6642 AP |
1828 | case DTV_INTERLEAVING: |
1829 | c->interleaving = tvp->u.data; | |
1830 | break; | |
b6e760f3 PB |
1831 | |
1832 | /* ISDB-T Support here */ | |
1833 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1834 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1835 | break; |
1836 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1837 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1838 | break; |
1839 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1840 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1841 | break; |
1842 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1843 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1844 | break; |
1845 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1846 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1847 | break; |
e7b7949a | 1848 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1849 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1850 | break; |
b6e760f3 | 1851 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1852 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1853 | break; |
1854 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1855 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1856 | break; |
1857 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1858 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1859 | break; |
1860 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1861 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1862 | break; |
1863 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1864 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1865 | break; |
1866 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1867 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1868 | break; |
1869 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1870 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1871 | break; |
1872 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1873 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1874 | break; |
1875 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1876 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1877 | break; |
1878 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1879 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1880 | break; |
1881 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1882 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1883 | break; |
1884 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1885 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1886 | break; |
287cefd0 EP |
1887 | |
1888 | /* Multistream support */ | |
1889 | case DTV_STREAM_ID: | |
1890 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1891 | c->stream_id = tvp->u.data; | |
98293ef3 | 1892 | break; |
ca689488 MK |
1893 | |
1894 | /* ATSC-MH */ | |
1895 | case DTV_ATSCMH_PARADE_ID: | |
1896 | fe->dtv_property_cache.atscmh_parade_id = tvp->u.data; | |
1897 | break; | |
1898 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1899 | fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; | |
1900 | break; | |
1901 | ||
33eebec5 AP |
1902 | case DTV_LNA: |
1903 | c->lna = tvp->u.data; | |
1904 | if (fe->ops.set_lna) | |
1905 | r = fe->ops.set_lna(fe); | |
e6876692 MCC |
1906 | if (r < 0) |
1907 | c->lna = LNA_AUTO; | |
33eebec5 AP |
1908 | break; |
1909 | ||
363429a0 | 1910 | default: |
aff8ab5c | 1911 | return -EINVAL; |
6b73eeaf ST |
1912 | } |
1913 | ||
13c97bf5 | 1914 | return r; |
6b73eeaf ST |
1915 | } |
1916 | ||
16ef8def | 1917 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1918 | unsigned int cmd, void *parg) |
1919 | { | |
1920 | struct dvb_device *dvbdev = file->private_data; | |
1921 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1922 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1923 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac897586 | 1924 | int err = -EOPNOTSUPP; |
1da177e4 | 1925 | |
36bdbc3f | 1926 | dev_dbg(fe->dvb->device, "%s: (%d)\n", __func__, _IOC_NR(cmd)); |
6ae23224 JL |
1927 | if (down_interruptible(&fepriv->sem)) |
1928 | return -ERESTARTSYS; | |
1929 | ||
18ed2860 | 1930 | if (fe->exit != DVB_FE_NO_EXIT) { |
6ae23224 | 1931 | up(&fepriv->sem); |
1da177e4 | 1932 | return -ENODEV; |
6ae23224 | 1933 | } |
1da177e4 LT |
1934 | |
1935 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1936 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
6ae23224 JL |
1937 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) { |
1938 | up(&fepriv->sem); | |
1da177e4 | 1939 | return -EPERM; |
6ae23224 | 1940 | } |
1da177e4 | 1941 | |
13c97bf5 | 1942 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1943 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1944 | else { |
50727719 | 1945 | c->state = DTV_UNDEFINED; |
16ef8def | 1946 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1947 | } |
13c97bf5 ST |
1948 | |
1949 | up(&fepriv->sem); | |
1950 | return err; | |
1951 | } | |
1952 | ||
16ef8def | 1953 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1954 | unsigned int cmd, void *parg) |
1955 | { | |
1956 | struct dvb_device *dvbdev = file->private_data; | |
1957 | struct dvb_frontend *fe = dvbdev->priv; | |
51dcb19a | 1958 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
50727719 | 1959 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1960 | int err = 0; |
e7fee0f3 | 1961 | |
71d1b2be | 1962 | struct dtv_properties *tvps = parg; |
e7fee0f3 ST |
1963 | struct dtv_property *tvp = NULL; |
1964 | int i; | |
13c97bf5 | 1965 | |
36bdbc3f | 1966 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
13c97bf5 | 1967 | |
71d1b2be | 1968 | if (cmd == FE_SET_PROPERTY) { |
36bdbc3f AP |
1969 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1970 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1971 | |
1972 | /* Put an arbitrary limit on the number of messages that can | |
1973 | * be sent at once */ | |
6068f506 | 1974 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1975 | return -EINVAL; |
1976 | ||
fb660928 ME |
1977 | tvp = memdup_user(tvps->props, tvps->num * sizeof(*tvp)); |
1978 | if (IS_ERR(tvp)) | |
1979 | return PTR_ERR(tvp); | |
e7fee0f3 | 1980 | |
d48cb402 | 1981 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1982 | err = dtv_property_process_set(fe, tvp + i, file); |
1983 | if (err < 0) | |
1984 | goto out; | |
1985 | (tvp + i)->result = err; | |
d48cb402 | 1986 | } |
e7fee0f3 | 1987 | |
50727719 | 1988 | if (c->state == DTV_TUNE) |
36bdbc3f | 1989 | dev_dbg(fe->dvb->device, "%s: Property cache is full, tuning\n", __func__); |
bfbf2dae | 1990 | |
71d1b2be | 1991 | } else if (cmd == FE_GET_PROPERTY) { |
bb31d238 MCC |
1992 | struct dtv_frontend_properties getp = fe->dtv_property_cache; |
1993 | ||
36bdbc3f AP |
1994 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1995 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1996 | |
1997 | /* Put an arbitrary limit on the number of messages that can | |
1998 | * be sent at once */ | |
6068f506 | 1999 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
2000 | return -EINVAL; |
2001 | ||
fb660928 ME |
2002 | tvp = memdup_user(tvps->props, tvps->num * sizeof(*tvp)); |
2003 | if (IS_ERR(tvp)) | |
2004 | return PTR_ERR(tvp); | |
363429a0 | 2005 | |
a689e365 | 2006 | /* |
bb31d238 MCC |
2007 | * Let's use our own copy of property cache, in order to |
2008 | * avoid mangling with DTV zigzag logic, as drivers might | |
2009 | * return crap, if they don't check if the data is available | |
2010 | * before updating the properties cache. | |
a689e365 | 2011 | */ |
51dcb19a | 2012 | if (fepriv->state != FESTATE_IDLE) { |
bb31d238 | 2013 | err = dtv_get_frontend(fe, &getp, NULL); |
51dcb19a MCC |
2014 | if (err < 0) |
2015 | goto out; | |
2016 | } | |
d48cb402 | 2017 | for (i = 0; i < tvps->num; i++) { |
bb31d238 | 2018 | err = dtv_property_process_get(fe, &getp, tvp + i, file); |
aff8ab5c AO |
2019 | if (err < 0) |
2020 | goto out; | |
2021 | (tvp + i)->result = err; | |
d48cb402 | 2022 | } |
363429a0 | 2023 | |
71d1b2be MCC |
2024 | if (copy_to_user((void __user *)tvps->props, tvp, |
2025 | tvps->num * sizeof(struct dtv_property))) { | |
363429a0 ST |
2026 | err = -EFAULT; |
2027 | goto out; | |
2028 | } | |
2029 | ||
363429a0 | 2030 | } else |
ac897586 | 2031 | err = -EOPNOTSUPP; |
363429a0 | 2032 | |
e7fee0f3 ST |
2033 | out: |
2034 | kfree(tvp); | |
13c97bf5 ST |
2035 | return err; |
2036 | } | |
2037 | ||
5bfaadde | 2038 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 2039 | { |
9682cea2 MCC |
2040 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
2041 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
2042 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 2043 | u32 rolloff = 0; |
9682cea2 | 2044 | |
5bfaadde MCC |
2045 | if (dvb_frontend_check_parameters(fe) < 0) |
2046 | return -EINVAL; | |
9682cea2 | 2047 | |
556a0442 CR |
2048 | /* |
2049 | * Initialize output parameters to match the values given by | |
2050 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
2051 | * with status = 0, which copies output parameters to userspace. | |
2052 | */ | |
2ea9a08d | 2053 | dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out); |
556a0442 | 2054 | |
5bfaadde MCC |
2055 | /* |
2056 | * Be sure that the bandwidth will be filled for all | |
2057 | * non-satellite systems, as tuners need to know what | |
2058 | * low pass/Nyquist half filter should be applied, in | |
2059 | * order to avoid inter-channel noise. | |
2060 | * | |
2061 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
2062 | * ATSC and DVB-C don't set, so, the core should fill it. | |
2063 | * | |
2064 | * On DVB-C Annex A and C, the bandwidth is a function of | |
2065 | * the roll-off and symbol rate. Annex B defines different | |
2066 | * roll-off factors depending on the modulation. Fortunately, | |
2067 | * Annex B is only used with 6MHz, so there's no need to | |
2068 | * calculate it. | |
2069 | * | |
2070 | * While not officially supported, a side effect of handling it at | |
2071 | * the cache level is that a program could retrieve the bandwidth | |
2072 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
2073 | */ | |
2074 | switch (c->delivery_system) { | |
2075 | case SYS_ATSC: | |
2076 | case SYS_DVBC_ANNEX_B: | |
2077 | c->bandwidth_hz = 6000000; | |
2078 | break; | |
2079 | case SYS_DVBC_ANNEX_A: | |
2080 | rolloff = 115; | |
2081 | break; | |
2082 | case SYS_DVBC_ANNEX_C: | |
2083 | rolloff = 113; | |
2084 | break; | |
c623ed63 MCC |
2085 | case SYS_DVBS: |
2086 | case SYS_TURBO: | |
8e281faf | 2087 | case SYS_ISDBS: |
c623ed63 MCC |
2088 | rolloff = 135; |
2089 | break; | |
2090 | case SYS_DVBS2: | |
2091 | switch (c->rolloff) { | |
2092 | case ROLLOFF_20: | |
2093 | rolloff = 120; | |
2094 | break; | |
2095 | case ROLLOFF_25: | |
2096 | rolloff = 125; | |
2097 | break; | |
2098 | default: | |
2099 | case ROLLOFF_35: | |
2100 | rolloff = 135; | |
2101 | } | |
2102 | break; | |
5bfaadde MCC |
2103 | default: |
2104 | break; | |
2105 | } | |
2106 | if (rolloff) | |
2a80f296 | 2107 | c->bandwidth_hz = mult_frac(c->symbol_rate, rolloff, 100); |
9682cea2 MCC |
2108 | |
2109 | /* force auto frequency inversion if requested */ | |
5bfaadde | 2110 | if (dvb_force_auto_inversion) |
9682cea2 | 2111 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
2112 | |
2113 | /* | |
2114 | * without hierarchical coding code_rate_LP is irrelevant, | |
2115 | * so we tolerate the otherwise invalid FEC_NONE setting | |
2116 | */ | |
2117 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
2118 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
2119 | |
2120 | /* get frontend-specific tuning settings */ | |
5bfaadde | 2121 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
2122 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
2123 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
2124 | fepriv->max_drift = fetunesettings.max_drift; | |
2125 | fepriv->step_size = fetunesettings.step_size; | |
2126 | } else { | |
2127 | /* default values */ | |
5bfaadde | 2128 | switch (c->delivery_system) { |
910a5f2e MCC |
2129 | case SYS_DVBS: |
2130 | case SYS_DVBS2: | |
2131 | case SYS_ISDBS: | |
2132 | case SYS_TURBO: | |
5bfaadde MCC |
2133 | case SYS_DVBC_ANNEX_A: |
2134 | case SYS_DVBC_ANNEX_C: | |
2135 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
2136 | fepriv->step_size = c->symbol_rate / 16000; |
2137 | fepriv->max_drift = c->symbol_rate / 2000; | |
2138 | break; | |
5bfaadde MCC |
2139 | case SYS_DVBT: |
2140 | case SYS_DVBT2: | |
2141 | case SYS_ISDBT: | |
224b6642 | 2142 | case SYS_DTMB: |
5bfaadde | 2143 | fepriv->min_delay = HZ / 20; |
9682cea2 MCC |
2144 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
2145 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
2146 | break; | |
5bfaadde MCC |
2147 | default: |
2148 | /* | |
2149 | * FIXME: This sounds wrong! if freqency_stepsize is | |
2150 | * defined by the frontend, why not use it??? | |
2151 | */ | |
2152 | fepriv->min_delay = HZ / 20; | |
2153 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
2154 | fepriv->max_drift = 0; |
2155 | break; | |
2156 | } | |
2157 | } | |
2158 | if (dvb_override_tune_delay > 0) | |
2159 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
2160 | ||
2161 | fepriv->state = FESTATE_RETUNE; | |
2162 | ||
2163 | /* Request the search algorithm to search */ | |
2164 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
2165 | ||
2166 | dvb_frontend_clear_events(fe); | |
2167 | dvb_frontend_add_event(fe, 0); | |
2168 | dvb_frontend_wakeup(fe); | |
2169 | fepriv->status = 0; | |
2170 | ||
2171 | return 0; | |
2172 | } | |
2173 | ||
2174 | ||
16ef8def | 2175 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
2176 | unsigned int cmd, void *parg) |
2177 | { | |
2178 | struct dvb_device *dvbdev = file->private_data; | |
2179 | struct dvb_frontend *fe = dvbdev->priv; | |
2180 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 2181 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
ac897586 | 2182 | int err = -EOPNOTSUPP; |
13c97bf5 | 2183 | |
1da177e4 LT |
2184 | switch (cmd) { |
2185 | case FE_GET_INFO: { | |
0c53c70f | 2186 | struct dvb_frontend_info* info = parg; |
9474c5e6 | 2187 | |
dea74869 | 2188 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 2189 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 2190 | |
5bfaadde MCC |
2191 | /* |
2192 | * Associate the 4 delivery systems supported by DVBv3 | |
2193 | * API with their DVBv5 counterpart. For the other standards, | |
2194 | * use the closest type, assuming that it would hopefully | |
2195 | * work with a DVBv3 application. | |
2196 | * It should be noticed that, on multi-frontend devices with | |
2197 | * different types (terrestrial and cable, for example), | |
2198 | * a pure DVBv3 application won't be able to use all delivery | |
2199 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
2200 | * system should be enough for making it work. | |
2201 | */ | |
2202 | switch (dvbv3_type(c->delivery_system)) { | |
2203 | case DVBV3_QPSK: | |
9474c5e6 | 2204 | info->type = FE_QPSK; |
5bfaadde MCC |
2205 | break; |
2206 | case DVBV3_ATSC: | |
9474c5e6 | 2207 | info->type = FE_ATSC; |
5bfaadde MCC |
2208 | break; |
2209 | case DVBV3_QAM: | |
9474c5e6 | 2210 | info->type = FE_QAM; |
5bfaadde MCC |
2211 | break; |
2212 | case DVBV3_OFDM: | |
9474c5e6 | 2213 | info->type = FE_OFDM; |
5bfaadde MCC |
2214 | break; |
2215 | default: | |
36bdbc3f AP |
2216 | dev_err(fe->dvb->device, |
2217 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
2218 | __func__, c->delivery_system); | |
5bfaadde MCC |
2219 | fe->ops.info.type = FE_OFDM; |
2220 | } | |
36bdbc3f AP |
2221 | dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n", |
2222 | __func__, c->delivery_system, fe->ops.info.type); | |
5bfaadde | 2223 | |
c9d57de6 MP |
2224 | /* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */ |
2225 | if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) | |
2226 | info->caps |= FE_CAN_INVERSION_AUTO; | |
1da177e4 LT |
2227 | err = 0; |
2228 | break; | |
2229 | } | |
2230 | ||
6757ccc5 | 2231 | case FE_READ_STATUS: { |
0df289a2 | 2232 | enum fe_status *status = parg; |
6757ccc5 | 2233 | |
25985edc | 2234 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2235 | * that user get signal state from previous tuning */ |
01886255 JG |
2236 | if (fepriv->state == FESTATE_RETUNE || |
2237 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2238 | err=0; |
2239 | *status = 0; | |
2240 | break; | |
2241 | } | |
2242 | ||
dea74869 PB |
2243 | if (fe->ops.read_status) |
2244 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2245 | break; |
6757ccc5 | 2246 | } |
48caa6f1 | 2247 | |
1da177e4 | 2248 | case FE_READ_BER: |
48caa6f1 AP |
2249 | if (fe->ops.read_ber) { |
2250 | if (fepriv->thread) | |
2251 | err = fe->ops.read_ber(fe, (__u32 *) parg); | |
2252 | else | |
2253 | err = -EAGAIN; | |
2254 | } | |
1da177e4 LT |
2255 | break; |
2256 | ||
2257 | case FE_READ_SIGNAL_STRENGTH: | |
48caa6f1 AP |
2258 | if (fe->ops.read_signal_strength) { |
2259 | if (fepriv->thread) | |
2260 | err = fe->ops.read_signal_strength(fe, (__u16 *) parg); | |
2261 | else | |
2262 | err = -EAGAIN; | |
2263 | } | |
1da177e4 LT |
2264 | break; |
2265 | ||
2266 | case FE_READ_SNR: | |
48caa6f1 AP |
2267 | if (fe->ops.read_snr) { |
2268 | if (fepriv->thread) | |
2269 | err = fe->ops.read_snr(fe, (__u16 *) parg); | |
2270 | else | |
2271 | err = -EAGAIN; | |
2272 | } | |
1da177e4 LT |
2273 | break; |
2274 | ||
2275 | case FE_READ_UNCORRECTED_BLOCKS: | |
48caa6f1 AP |
2276 | if (fe->ops.read_ucblocks) { |
2277 | if (fepriv->thread) | |
2278 | err = fe->ops.read_ucblocks(fe, (__u32 *) parg); | |
2279 | else | |
2280 | err = -EAGAIN; | |
2281 | } | |
1da177e4 LT |
2282 | break; |
2283 | ||
1da177e4 | 2284 | case FE_DISEQC_RESET_OVERLOAD: |
dea74869 PB |
2285 | if (fe->ops.diseqc_reset_overload) { |
2286 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2287 | fepriv->state = FESTATE_DISEQC; |
2288 | fepriv->status = 0; | |
2289 | } | |
2290 | break; | |
2291 | ||
2292 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 | 2293 | if (fe->ops.diseqc_send_master_cmd) { |
8d7e5063 DC |
2294 | struct dvb_diseqc_master_cmd *cmd = parg; |
2295 | ||
2296 | if (cmd->msg_len > sizeof(cmd->msg)) { | |
2297 | err = -EINVAL; | |
2298 | break; | |
2299 | } | |
2300 | err = fe->ops.diseqc_send_master_cmd(fe, cmd); | |
1da177e4 LT |
2301 | fepriv->state = FESTATE_DISEQC; |
2302 | fepriv->status = 0; | |
2303 | } | |
2304 | break; | |
2305 | ||
2306 | case FE_DISEQC_SEND_BURST: | |
dea74869 | 2307 | if (fe->ops.diseqc_send_burst) { |
0df289a2 MCC |
2308 | err = fe->ops.diseqc_send_burst(fe, |
2309 | (enum fe_sec_mini_cmd)parg); | |
1da177e4 LT |
2310 | fepriv->state = FESTATE_DISEQC; |
2311 | fepriv->status = 0; | |
2312 | } | |
2313 | break; | |
2314 | ||
2315 | case FE_SET_TONE: | |
dea74869 | 2316 | if (fe->ops.set_tone) { |
0df289a2 MCC |
2317 | err = fe->ops.set_tone(fe, |
2318 | (enum fe_sec_tone_mode)parg); | |
2319 | fepriv->tone = (enum fe_sec_tone_mode)parg; | |
1da177e4 LT |
2320 | fepriv->state = FESTATE_DISEQC; |
2321 | fepriv->status = 0; | |
2322 | } | |
2323 | break; | |
2324 | ||
2325 | case FE_SET_VOLTAGE: | |
dea74869 | 2326 | if (fe->ops.set_voltage) { |
0df289a2 MCC |
2327 | err = fe->ops.set_voltage(fe, |
2328 | (enum fe_sec_voltage)parg); | |
2329 | fepriv->voltage = (enum fe_sec_voltage)parg; | |
1da177e4 LT |
2330 | fepriv->state = FESTATE_DISEQC; |
2331 | fepriv->status = 0; | |
2332 | } | |
2333 | break; | |
2334 | ||
2335 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 | 2336 | if (fe->ops.dishnetwork_send_legacy_command) { |
0df289a2 MCC |
2337 | err = fe->ops.dishnetwork_send_legacy_command(fe, |
2338 | (unsigned long)parg); | |
1da177e4 LT |
2339 | fepriv->state = FESTATE_DISEQC; |
2340 | fepriv->status = 0; | |
dea74869 | 2341 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2342 | /* |
2343 | * NOTE: This is a fallback condition. Some frontends | |
2344 | * (stv0299 for instance) take longer than 8msec to | |
2345 | * respond to a set_voltage command. Those switches | |
2346 | * need custom routines to switch properly. For all | |
2030c032 | 2347 | * other frontends, the following should work ok. |
83b75b04 N |
2348 | * Dish network legacy switches (as used by Dish500) |
2349 | * are controlled by sending 9-bit command words | |
2350 | * spaced 8msec apart. | |
25985edc | 2351 | * the actual command word is switch/port dependent |
83b75b04 N |
2352 | * so it is up to the userspace application to send |
2353 | * the right command. | |
2354 | * The command must always start with a '0' after | |
2355 | * initialization, so parg is 8 bits and does not | |
2356 | * include the initialization or start bit | |
2357 | */ | |
c6eb8eaf | 2358 | unsigned long swcmd = ((unsigned long) parg) << 1; |
9056a23b TR |
2359 | ktime_t nexttime; |
2360 | ktime_t tv[10]; | |
83b75b04 N |
2361 | int i; |
2362 | u8 last = 1; | |
2363 | if (dvb_frontend_debug) | |
b3ad24d2 MCC |
2364 | dprintk("%s switch command: 0x%04lx\n", |
2365 | __func__, swcmd); | |
6b3f9998 | 2366 | nexttime = ktime_get_boottime(); |
83b75b04 | 2367 | if (dvb_frontend_debug) |
b9b1b3a8 | 2368 | tv[0] = nexttime; |
83b75b04 N |
2369 | /* before sending a command, initialize by sending |
2370 | * a 32ms 18V to the switch | |
2371 | */ | |
dea74869 | 2372 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2373 | dvb_frontend_sleep_until(&nexttime, 32000); |
2374 | ||
2375 | for (i = 0; i < 9; i++) { | |
2376 | if (dvb_frontend_debug) | |
6b3f9998 | 2377 | tv[i+1] = ktime_get_boottime(); |
c6eb8eaf | 2378 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2379 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2380 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2381 | last = (last) ? 0 : 1; |
2382 | } | |
c6eb8eaf | 2383 | swcmd = swcmd >> 1; |
83b75b04 N |
2384 | if (i != 8) |
2385 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2386 | } | |
2387 | if (dvb_frontend_debug) { | |
b3ad24d2 | 2388 | dprintk("%s(%d): switch delay (should be 32k followed by all 8k)\n", |
46b4f7c1 | 2389 | __func__, fe->dvb->num); |
83b75b04 | 2390 | for (i = 1; i < 10; i++) |
b3ad24d2 | 2391 | pr_info("%d: %d\n", i, |
9056a23b | 2392 | (int) ktime_us_delta(tv[i], tv[i-1])); |
83b75b04 N |
2393 | } |
2394 | err = 0; | |
2395 | fepriv->state = FESTATE_DISEQC; | |
2396 | fepriv->status = 0; | |
1da177e4 LT |
2397 | } |
2398 | break; | |
2399 | ||
2400 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2401 | if (fe->ops.diseqc_recv_slave_reply) |
2402 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2403 | break; |
2404 | ||
2405 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2406 | if (fe->ops.enable_high_lnb_voltage) |
2407 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2408 | break; |
2409 | ||
9682cea2 | 2410 | case FE_SET_FRONTEND: |
be431b16 | 2411 | err = dvbv3_set_delivery_system(fe); |
04be0f76 MCC |
2412 | if (err) |
2413 | break; | |
2414 | ||
e399ce77 | 2415 | err = dtv_property_cache_sync(fe, c, parg); |
5bfaadde MCC |
2416 | if (err) |
2417 | break; | |
2418 | err = dtv_set_frontend(fe); | |
1da177e4 | 2419 | break; |
1da177e4 LT |
2420 | case FE_GET_EVENT: |
2421 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2422 | break; | |
2423 | ||
bb31d238 MCC |
2424 | case FE_GET_FRONTEND: { |
2425 | struct dtv_frontend_properties getp = fe->dtv_property_cache; | |
36cb557a | 2426 | |
bb31d238 MCC |
2427 | /* |
2428 | * Let's use our own copy of property cache, in order to | |
2429 | * avoid mangling with DTV zigzag logic, as drivers might | |
2430 | * return crap, if they don't check if the data is available | |
2431 | * before updating the properties cache. | |
2432 | */ | |
2433 | err = dtv_get_frontend(fe, &getp, parg); | |
2434 | break; | |
2435 | } | |
36cb557a | 2436 | case FE_SET_FRONTEND_TUNE_MODE: |
e18828e4 | 2437 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2438 | err = 0; |
36cb557a | 2439 | break; |
c2c1b415 | 2440 | } |
1da177e4 | 2441 | |
1da177e4 LT |
2442 | return err; |
2443 | } | |
2444 | ||
6b73eeaf | 2445 | |
1da177e4 LT |
2446 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2447 | { | |
2448 | struct dvb_device *dvbdev = file->private_data; | |
2449 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2450 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2451 | |
36bdbc3f | 2452 | dev_dbg_ratelimited(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
2453 | |
2454 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2455 | ||
2456 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2457 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2458 | ||
2459 | return 0; | |
2460 | } | |
2461 | ||
2462 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2463 | { | |
2464 | struct dvb_device *dvbdev = file->private_data; | |
2465 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2466 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2467 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2468 | int ret; |
2469 | ||
36bdbc3f | 2470 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
18ed2860 | 2471 | if (fe->exit == DVB_FE_DEVICE_REMOVED) |
e36309f5 | 2472 | return -ENODEV; |
1da177e4 | 2473 | |
59b1842d DB |
2474 | if (adapter->mfe_shared) { |
2475 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2476 | |
2477 | if (adapter->mfe_dvbdev == NULL) | |
2478 | adapter->mfe_dvbdev = dvbdev; | |
2479 | ||
2480 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2481 | struct dvb_device | |
2482 | *mfedev = adapter->mfe_dvbdev; | |
2483 | struct dvb_frontend | |
2484 | *mfe = mfedev->priv; | |
2485 | struct dvb_frontend_private | |
2486 | *mfepriv = mfe->frontend_priv; | |
2487 | int mferetry = (dvb_mfe_wait_time << 1); | |
2488 | ||
2489 | mutex_unlock (&adapter->mfe_lock); | |
2490 | while (mferetry-- && (mfedev->users != -1 || | |
2491 | mfepriv->thread != NULL)) { | |
2492 | if(msleep_interruptible(500)) { | |
2493 | if(signal_pending(current)) | |
2494 | return -EINTR; | |
59b1842d | 2495 | } |
6594690b DB |
2496 | } |
2497 | ||
2498 | mutex_lock (&adapter->mfe_lock); | |
2499 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2500 | mfedev = adapter->mfe_dvbdev; |
2501 | mfe = mfedev->priv; | |
2502 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2503 | if (mfedev->users != -1 || |
2504 | mfepriv->thread != NULL) { | |
2505 | mutex_unlock (&adapter->mfe_lock); | |
2506 | return -EBUSY; | |
59b1842d | 2507 | } |
6594690b | 2508 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2509 | } |
59b1842d DB |
2510 | } |
2511 | } | |
2512 | ||
48136e1e OE |
2513 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2514 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2515 | goto err0; |
2d196931 DH |
2516 | |
2517 | /* If we took control of the bus, we need to force | |
2518 | reinitialization. This is because many ts_bus_ctrl() | |
2519 | functions strobe the RESET pin on the demod, and if the | |
2520 | frontend thread already exists then the dvb_init() routine | |
2521 | won't get called (which is what usually does initial | |
2522 | register configuration). */ | |
2523 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2524 | } |
2525 | ||
48136e1e OE |
2526 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2527 | goto err1; | |
04c56d0e | 2528 | |
48136e1e | 2529 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2530 | /* normal tune mode when opened R/W */ |
2531 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2532 | fepriv->tone = -1; | |
2533 | fepriv->voltage = -1; | |
2534 | ||
68ff5767 | 2535 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
90cd366b SK |
2536 | if (fe->dvb->mdev) { |
2537 | mutex_lock(&fe->dvb->mdev->graph_mutex); | |
2538 | if (fe->dvb->mdev->enable_source) | |
2539 | ret = fe->dvb->mdev->enable_source( | |
2540 | dvbdev->entity, | |
68ff5767 | 2541 | &fepriv->pipe); |
90cd366b | 2542 | mutex_unlock(&fe->dvb->mdev->graph_mutex); |
68ff5767 SK |
2543 | if (ret) { |
2544 | dev_err(fe->dvb->device, | |
2545 | "Tuner is busy. Error %d\n", ret); | |
2546 | goto err2; | |
2547 | } | |
2548 | } | |
2549 | #endif | |
1da177e4 LT |
2550 | ret = dvb_frontend_start (fe); |
2551 | if (ret) | |
68ff5767 | 2552 | goto err3; |
1da177e4 LT |
2553 | |
2554 | /* empty event queue */ | |
2555 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2556 | } | |
2557 | ||
1f862a68 | 2558 | dvb_frontend_get(fe); |
fe35637b | 2559 | |
59b1842d DB |
2560 | if (adapter->mfe_shared) |
2561 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2562 | return ret; |
48136e1e | 2563 | |
68ff5767 SK |
2564 | err3: |
2565 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB | |
90cd366b SK |
2566 | if (fe->dvb->mdev) { |
2567 | mutex_lock(&fe->dvb->mdev->graph_mutex); | |
2568 | if (fe->dvb->mdev->disable_source) | |
2569 | fe->dvb->mdev->disable_source(dvbdev->entity); | |
2570 | mutex_unlock(&fe->dvb->mdev->graph_mutex); | |
2571 | } | |
48136e1e | 2572 | err2: |
68ff5767 | 2573 | #endif |
48136e1e OE |
2574 | dvb_generic_release(inode, file); |
2575 | err1: | |
2576 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2577 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2578 | err0: |
2579 | if (adapter->mfe_shared) | |
2580 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2581 | return ret; |
1da177e4 LT |
2582 | } |
2583 | ||
2584 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2585 | { | |
2586 | struct dvb_device *dvbdev = file->private_data; | |
2587 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2588 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2589 | int ret; |
1da177e4 | 2590 | |
36bdbc3f | 2591 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2592 | |
b9d5efcc | 2593 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2594 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2595 | mb(); |
2596 | } | |
1da177e4 | 2597 | |
ca5be9cd MR |
2598 | ret = dvb_generic_release (inode, file); |
2599 | ||
48136e1e | 2600 | if (dvbdev->users == -1) { |
b9d5efcc | 2601 | wake_up(&fepriv->wait_queue); |
68ff5767 | 2602 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
90cd366b SK |
2603 | if (fe->dvb->mdev) { |
2604 | mutex_lock(&fe->dvb->mdev->graph_mutex); | |
2605 | if (fe->dvb->mdev->disable_source) | |
2606 | fe->dvb->mdev->disable_source(dvbdev->entity); | |
2607 | mutex_unlock(&fe->dvb->mdev->graph_mutex); | |
2608 | } | |
68ff5767 | 2609 | #endif |
18ed2860 | 2610 | if (fe->exit != DVB_FE_NO_EXIT) |
48136e1e | 2611 | wake_up(&dvbdev->wait_queue); |
48136e1e OE |
2612 | if (fe->ops.ts_bus_ctrl) |
2613 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2614 | } |
48136e1e | 2615 | |
1f862a68 | 2616 | dvb_frontend_put(fe); |
fe35637b | 2617 | |
ca5be9cd | 2618 | return ret; |
1da177e4 LT |
2619 | } |
2620 | ||
784e29d2 | 2621 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2622 | .owner = THIS_MODULE, |
16ef8def | 2623 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2624 | .poll = dvb_frontend_poll, |
2625 | .open = dvb_frontend_open, | |
6038f373 AB |
2626 | .release = dvb_frontend_release, |
2627 | .llseek = noop_llseek, | |
1da177e4 LT |
2628 | }; |
2629 | ||
06bae122 AP |
2630 | int dvb_frontend_suspend(struct dvb_frontend *fe) |
2631 | { | |
2632 | int ret = 0; | |
2633 | ||
2634 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2635 | fe->id); | |
2636 | ||
59d7889a MCC |
2637 | if (fe->ops.tuner_ops.suspend) |
2638 | ret = fe->ops.tuner_ops.suspend(fe); | |
2639 | else if (fe->ops.tuner_ops.sleep) | |
06bae122 AP |
2640 | ret = fe->ops.tuner_ops.sleep(fe); |
2641 | ||
2642 | if (fe->ops.sleep) | |
2643 | ret = fe->ops.sleep(fe); | |
2644 | ||
2645 | return ret; | |
2646 | } | |
2647 | EXPORT_SYMBOL(dvb_frontend_suspend); | |
2648 | ||
2649 | int dvb_frontend_resume(struct dvb_frontend *fe) | |
2650 | { | |
2651 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
2652 | int ret = 0; | |
2653 | ||
2654 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2655 | fe->id); | |
2656 | ||
87cd0fa8 | 2657 | fe->exit = DVB_FE_DEVICE_RESUME; |
06bae122 AP |
2658 | if (fe->ops.init) |
2659 | ret = fe->ops.init(fe); | |
2660 | ||
59d7889a MCC |
2661 | if (fe->ops.tuner_ops.resume) |
2662 | ret = fe->ops.tuner_ops.resume(fe); | |
2663 | else if (fe->ops.tuner_ops.init) | |
06bae122 AP |
2664 | ret = fe->ops.tuner_ops.init(fe); |
2665 | ||
3663b31b MCC |
2666 | if (fe->ops.set_tone && fepriv->tone != -1) |
2667 | fe->ops.set_tone(fe, fepriv->tone); | |
2668 | if (fe->ops.set_voltage && fepriv->voltage != -1) | |
2669 | fe->ops.set_voltage(fe, fepriv->voltage); | |
2670 | ||
87cd0fa8 | 2671 | fe->exit = DVB_FE_NO_EXIT; |
06bae122 AP |
2672 | fepriv->state = FESTATE_RETUNE; |
2673 | dvb_frontend_wakeup(fe); | |
2674 | ||
2675 | return ret; | |
2676 | } | |
2677 | EXPORT_SYMBOL(dvb_frontend_resume); | |
2678 | ||
1da177e4 LT |
2679 | int dvb_register_frontend(struct dvb_adapter* dvb, |
2680 | struct dvb_frontend* fe) | |
2681 | { | |
2682 | struct dvb_frontend_private *fepriv; | |
c1b31b1e | 2683 | const struct dvb_device dvbdev_template = { |
1da177e4 LT |
2684 | .users = ~0, |
2685 | .writers = 1, | |
2686 | .readers = (~0)-1, | |
2687 | .fops = &dvb_frontend_fops, | |
c1b31b1e MCC |
2688 | #if defined(CONFIG_MEDIA_CONTROLLER_DVB) |
2689 | .name = fe->ops.info.name, | |
2690 | #endif | |
1da177e4 LT |
2691 | .kernel_ioctl = dvb_frontend_ioctl |
2692 | }; | |
2693 | ||
36bdbc3f | 2694 | dev_dbg(dvb->device, "%s:\n", __func__); |
1da177e4 | 2695 | |
3593cab5 | 2696 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2697 | return -ERESTARTSYS; |
2698 | ||
7408187d | 2699 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2700 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2701 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2702 | return -ENOMEM; |
2703 | } | |
0c53c70f | 2704 | fepriv = fe->frontend_priv; |
1da177e4 | 2705 | |
1f862a68 MK |
2706 | kref_init(&fe->refcount); |
2707 | ||
2708 | /* | |
2709 | * After initialization, there need to be two references: one | |
2710 | * for dvb_unregister_frontend(), and another one for | |
2711 | * dvb_frontend_detach(). | |
2712 | */ | |
2713 | dvb_frontend_get(fe); | |
fe35637b | 2714 | |
a0a4714c | 2715 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2716 | init_waitqueue_head (&fepriv->wait_queue); |
2717 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2718 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2719 | fe->dvb = dvb; |
2720 | fepriv->inversion = INVERSION_OFF; | |
2721 | ||
36bdbc3f AP |
2722 | dev_info(fe->dvb->device, |
2723 | "DVB: registering adapter %i frontend %i (%s)...\n", | |
2724 | fe->dvb->num, fe->id, fe->ops.info.name); | |
1da177e4 LT |
2725 | |
2726 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
df2f94e5 | 2727 | fe, DVB_DEVICE_FRONTEND, 0); |
1da177e4 | 2728 | |
5bfaadde MCC |
2729 | /* |
2730 | * Initialize the cache to the proper values according with the | |
2731 | * first supported delivery system (ops->delsys[0]) | |
2732 | */ | |
240ab508 | 2733 | |
be431b16 | 2734 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; |
5bfaadde MCC |
2735 | dvb_frontend_clear_cache(fe); |
2736 | ||
3593cab5 | 2737 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2738 | return 0; |
2739 | } | |
2740 | EXPORT_SYMBOL(dvb_register_frontend); | |
2741 | ||
2742 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2743 | { | |
0c53c70f | 2744 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
36bdbc3f | 2745 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2746 | |
57861b43 | 2747 | mutex_lock(&frontend_mutex); |
1f862a68 MK |
2748 | dvb_frontend_stop(fe); |
2749 | dvb_remove_device(fepriv->dvbdev); | |
d9955060 | 2750 | |
1da177e4 | 2751 | /* fe is invalid now */ |
3593cab5 | 2752 | mutex_unlock(&frontend_mutex); |
1f862a68 | 2753 | dvb_frontend_put(fe); |
1da177e4 LT |
2754 | return 0; |
2755 | } | |
2756 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2757 | |
967d8e8f MK |
2758 | static void dvb_frontend_invoke_release(struct dvb_frontend *fe, |
2759 | void (*release)(struct dvb_frontend *fe)) | |
f52a838b | 2760 | { |
967d8e8f MK |
2761 | if (release) { |
2762 | release(fe); | |
2763 | #ifdef CONFIG_MEDIA_ATTACH | |
2764 | dvb_detach(release); | |
2765 | #endif | |
f52a838b AQ |
2766 | } |
2767 | } | |
967d8e8f | 2768 | |
f52a838b AQ |
2769 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2770 | { | |
967d8e8f MK |
2771 | dvb_frontend_invoke_release(fe, fe->ops.release_sec); |
2772 | dvb_frontend_invoke_release(fe, fe->ops.tuner_ops.release); | |
2773 | dvb_frontend_invoke_release(fe, fe->ops.analog_ops.release); | |
d812b3ca | 2774 | dvb_frontend_invoke_release(fe, fe->ops.detach); |
1f862a68 | 2775 | dvb_frontend_put(fe); |
f52a838b | 2776 | } |
f52a838b | 2777 | EXPORT_SYMBOL(dvb_frontend_detach); |