Commit | Line | Data |
---|---|---|
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. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | |
26 | */ | |
27 | ||
8de8594a MCC |
28 | /* Enables DVBv3 compatibility bits at the headers */ |
29 | #define __DVB_CORE__ | |
30 | ||
1da177e4 LT |
31 | #include <linux/string.h> |
32 | #include <linux/kernel.h> | |
33 | #include <linux/sched.h> | |
34 | #include <linux/wait.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/poll.h> | |
4c4cb1b1 | 37 | #include <linux/semaphore.h> |
1da177e4 | 38 | #include <linux/module.h> |
1da177e4 | 39 | #include <linux/list.h> |
7dfb7103 | 40 | #include <linux/freezer.h> |
cc89c229 | 41 | #include <linux/jiffies.h> |
8eec1429 | 42 | #include <linux/kthread.h> |
9056a23b | 43 | #include <linux/ktime.h> |
1da177e4 | 44 | #include <asm/processor.h> |
1da177e4 LT |
45 | |
46 | #include "dvb_frontend.h" | |
47 | #include "dvbdev.h" | |
eacf8d8d | 48 | #include <linux/dvb/version.h> |
1da177e4 LT |
49 | |
50 | static int dvb_frontend_debug; | |
849be2cd | 51 | static int dvb_shutdown_timeout; |
1da177e4 LT |
52 | static int dvb_force_auto_inversion; |
53 | static int dvb_override_tune_delay; | |
54 | static int dvb_powerdown_on_sleep = 1; | |
59b1842d | 55 | static int dvb_mfe_wait_time = 5; |
1da177e4 LT |
56 | |
57 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); | |
f4f009a7 | 58 | MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off)."); |
6baad3f0 | 59 | module_param(dvb_shutdown_timeout, int, 0644); |
1da177e4 | 60 | MODULE_PARM_DESC(dvb_shutdown_timeout, "wait <shutdown_timeout> seconds after close() before suspending hardware"); |
6baad3f0 | 61 | module_param(dvb_force_auto_inversion, int, 0644); |
1da177e4 | 62 | MODULE_PARM_DESC(dvb_force_auto_inversion, "0: normal (default), 1: INVERSION_AUTO forced always"); |
6baad3f0 | 63 | module_param(dvb_override_tune_delay, int, 0644); |
1da177e4 | 64 | MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt"); |
6baad3f0 | 65 | module_param(dvb_powerdown_on_sleep, int, 0644); |
a8558577 | 66 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
59b1842d DB |
67 | module_param(dvb_mfe_wait_time, int, 0644); |
68 | 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 | 69 | |
1da177e4 LT |
70 | #define FESTATE_IDLE 1 |
71 | #define FESTATE_RETUNE 2 | |
72 | #define FESTATE_TUNING_FAST 4 | |
73 | #define FESTATE_TUNING_SLOW 8 | |
74 | #define FESTATE_TUNED 16 | |
75 | #define FESTATE_ZIGZAG_FAST 32 | |
76 | #define FESTATE_ZIGZAG_SLOW 64 | |
77 | #define FESTATE_DISEQC 128 | |
01886255 | 78 | #define FESTATE_ERROR 256 |
1da177e4 LT |
79 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
80 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) | |
81 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) | |
82 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) | |
0249ef16 | 83 | |
1da177e4 LT |
84 | /* |
85 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. | |
86 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. | |
87 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. | |
88 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. | |
89 | * FESTATE_TUNED. The frontend has successfully locked on. | |
90 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. | |
91 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. | |
92 | * FESTATE_DISEQC. A DISEQC command has just been issued. | |
93 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. | |
94 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. | |
95 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. | |
96 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. | |
97 | */ | |
98 | ||
3593cab5 | 99 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
100 | |
101 | struct dvb_frontend_private { | |
fe35637b | 102 | struct kref refcount; |
1da177e4 | 103 | |
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 | ||
fe35637b MK |
141 | static void dvb_frontend_private_free(struct kref *ref) |
142 | { | |
143 | struct dvb_frontend_private *fepriv = | |
144 | container_of(ref, struct dvb_frontend_private, refcount); | |
145 | kfree(fepriv); | |
146 | } | |
147 | ||
148 | static void dvb_frontend_private_put(struct dvb_frontend_private *fepriv) | |
149 | { | |
150 | kref_put(&fepriv->refcount, dvb_frontend_private_free); | |
151 | } | |
152 | ||
153 | static void dvb_frontend_private_get(struct dvb_frontend_private *fepriv) | |
154 | { | |
155 | kref_get(&fepriv->refcount); | |
156 | } | |
157 | ||
86f40cc3 | 158 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 159 | static int dtv_get_frontend(struct dvb_frontend *fe, |
2ea9a08d | 160 | struct dtv_frontend_properties *c, |
a689e365 | 161 | struct dvb_frontend_parameters *p_out); |
2ea9a08d MCC |
162 | static int |
163 | dtv_property_legacy_params_sync(struct dvb_frontend *fe, | |
164 | const struct dtv_frontend_properties *c, | |
165 | struct dvb_frontend_parameters *p); | |
a689e365 MCC |
166 | |
167 | static bool has_get_frontend(struct dvb_frontend *fe) | |
168 | { | |
c065f5b4 | 169 | return fe->ops.get_frontend != NULL; |
a689e365 | 170 | } |
1da177e4 | 171 | |
5bfaadde MCC |
172 | /* |
173 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
174 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
175 | * otherwise, a DVBv3 call will fail. | |
176 | */ | |
177 | enum dvbv3_emulation_type { | |
178 | DVBV3_UNKNOWN, | |
179 | DVBV3_QPSK, | |
180 | DVBV3_QAM, | |
181 | DVBV3_OFDM, | |
182 | DVBV3_ATSC, | |
183 | }; | |
184 | ||
185 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
186 | { | |
187 | switch (delivery_system) { | |
188 | case SYS_DVBC_ANNEX_A: | |
189 | case SYS_DVBC_ANNEX_C: | |
190 | return DVBV3_QAM; | |
191 | case SYS_DVBS: | |
192 | case SYS_DVBS2: | |
193 | case SYS_TURBO: | |
194 | case SYS_ISDBS: | |
195 | case SYS_DSS: | |
196 | return DVBV3_QPSK; | |
197 | case SYS_DVBT: | |
198 | case SYS_DVBT2: | |
199 | case SYS_ISDBT: | |
224b6642 | 200 | case SYS_DTMB: |
5bfaadde MCC |
201 | return DVBV3_OFDM; |
202 | case SYS_ATSC: | |
ca689488 | 203 | case SYS_ATSCMH: |
5bfaadde MCC |
204 | case SYS_DVBC_ANNEX_B: |
205 | return DVBV3_ATSC; | |
206 | case SYS_UNDEFINED: | |
207 | case SYS_ISDBC: | |
208 | case SYS_DVBH: | |
209 | case SYS_DAB: | |
5bfaadde MCC |
210 | default: |
211 | /* | |
212 | * Doesn't know how to emulate those types and/or | |
213 | * there's no frontend driver from this type yet | |
214 | * with some emulation code, so, we're not sure yet how | |
215 | * to handle them, or they're not compatible with a DVBv3 call. | |
216 | */ | |
217 | return DVBV3_UNKNOWN; | |
218 | } | |
219 | } | |
220 | ||
0df289a2 MCC |
221 | static void dvb_frontend_add_event(struct dvb_frontend *fe, |
222 | enum fe_status status) | |
1da177e4 | 223 | { |
0c53c70f | 224 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
2ea9a08d | 225 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1da177e4 LT |
226 | struct dvb_fe_events *events = &fepriv->events; |
227 | struct dvb_frontend_event *e; | |
228 | int wp; | |
229 | ||
36bdbc3f | 230 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 231 | |
a689e365 | 232 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
2ea9a08d | 233 | dtv_get_frontend(fe, c, &fepriv->parameters_out); |
1da177e4 | 234 | |
77b1e2fb | 235 | mutex_lock(&events->mtx); |
1da177e4 | 236 | |
77b1e2fb | 237 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
238 | if (wp == events->eventr) { |
239 | events->overflow = 1; | |
240 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
241 | } | |
242 | ||
243 | e = &events->events[events->eventw]; | |
77b1e2fb | 244 | e->status = status; |
a5959dbe | 245 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
246 | |
247 | events->eventw = wp; | |
248 | ||
03b76123 | 249 | mutex_unlock(&events->mtx); |
1da177e4 | 250 | |
1da177e4 LT |
251 | wake_up_interruptible (&events->wait_queue); |
252 | } | |
253 | ||
254 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
255 | struct dvb_frontend_event *event, int flags) | |
256 | { | |
0c53c70f | 257 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
258 | struct dvb_fe_events *events = &fepriv->events; |
259 | ||
36bdbc3f | 260 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
261 | |
262 | if (events->overflow) { | |
263 | events->overflow = 0; | |
264 | return -EOVERFLOW; | |
265 | } | |
266 | ||
267 | if (events->eventw == events->eventr) { | |
268 | int ret; | |
269 | ||
270 | if (flags & O_NONBLOCK) | |
271 | return -EWOULDBLOCK; | |
272 | ||
273 | up(&fepriv->sem); | |
274 | ||
275 | ret = wait_event_interruptible (events->wait_queue, | |
276 | events->eventw != events->eventr); | |
277 | ||
278 | if (down_interruptible (&fepriv->sem)) | |
279 | return -ERESTARTSYS; | |
280 | ||
281 | if (ret < 0) | |
282 | return ret; | |
283 | } | |
284 | ||
77b1e2fb AO |
285 | mutex_lock(&events->mtx); |
286 | *event = events->events[events->eventr]; | |
1da177e4 | 287 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 288 | mutex_unlock(&events->mtx); |
1da177e4 LT |
289 | |
290 | return 0; | |
291 | } | |
292 | ||
20640bea AO |
293 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
294 | { | |
295 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
296 | struct dvb_fe_events *events = &fepriv->events; | |
297 | ||
298 | mutex_lock(&events->mtx); | |
299 | events->eventr = events->eventw; | |
300 | mutex_unlock(&events->mtx); | |
301 | } | |
302 | ||
1da177e4 LT |
303 | static void dvb_frontend_init(struct dvb_frontend *fe) |
304 | { | |
36bdbc3f AP |
305 | dev_dbg(fe->dvb->device, |
306 | "%s: initialising adapter %i frontend %i (%s)...\n", | |
307 | __func__, fe->dvb->num, fe->id, fe->ops.info.name); | |
dea74869 PB |
308 | |
309 | if (fe->ops.init) | |
310 | fe->ops.init(fe); | |
311 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
312 | if (fe->ops.i2c_gate_ctrl) |
313 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
314 | fe->ops.tuner_ops.init(fe); |
315 | if (fe->ops.i2c_gate_ctrl) | |
316 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 317 | } |
1da177e4 LT |
318 | } |
319 | ||
86f40cc3 AQ |
320 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
321 | { | |
322 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
323 | ||
324 | fepriv->reinitialise = 1; | |
325 | dvb_frontend_wakeup(fe); | |
326 | } | |
327 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
328 | ||
36cb557a | 329 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 330 | { |
36cb557a | 331 | int q2; |
36bdbc3f | 332 | struct dvb_frontend *fe = fepriv->dvbdev->priv; |
1da177e4 | 333 | |
36bdbc3f | 334 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 335 | |
36cb557a AQ |
336 | if (locked) |
337 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
338 | else | |
339 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 340 | |
36cb557a AQ |
341 | q2 = fepriv->quality - 128; |
342 | q2 *= q2; | |
1da177e4 | 343 | |
36cb557a | 344 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
345 | } |
346 | ||
347 | /** | |
348 | * Performs automatic twiddling of frontend parameters. | |
349 | * | |
350 | * @param fe The frontend concerned. | |
351 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
352 | * @returns Number of complete iterations that have been performed. | |
353 | */ | |
36cb557a | 354 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
355 | { |
356 | int autoinversion; | |
357 | int ready = 0; | |
01886255 | 358 | int fe_set_err = 0; |
0c53c70f | 359 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
360 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
361 | int original_inversion = c->inversion; | |
362 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
363 | |
364 | /* are we using autoinversion? */ | |
dea74869 | 365 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 366 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
367 | |
368 | /* setup parameters correctly */ | |
369 | while(!ready) { | |
370 | /* calculate the lnb_drift */ | |
371 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
372 | ||
373 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
374 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
375 | fepriv->auto_step = 0; | |
376 | fepriv->auto_sub_step = 0; | |
377 | fepriv->lnb_drift = 0; | |
378 | } | |
379 | ||
380 | /* perform inversion and +/- zigzag */ | |
381 | switch(fepriv->auto_sub_step) { | |
382 | case 0: | |
383 | /* try with the current inversion and current drift setting */ | |
384 | ready = 1; | |
385 | break; | |
386 | ||
387 | case 1: | |
388 | if (!autoinversion) break; | |
389 | ||
390 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
391 | ready = 1; | |
392 | break; | |
393 | ||
394 | case 2: | |
395 | if (fepriv->lnb_drift == 0) break; | |
396 | ||
397 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
398 | ready = 1; | |
399 | break; | |
400 | ||
401 | case 3: | |
402 | if (fepriv->lnb_drift == 0) break; | |
403 | if (!autoinversion) break; | |
404 | ||
405 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
406 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
407 | ready = 1; | |
408 | break; | |
409 | ||
410 | default: | |
411 | fepriv->auto_step++; | |
412 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
413 | break; | |
414 | } | |
415 | ||
416 | if (!ready) fepriv->auto_sub_step++; | |
417 | } | |
418 | ||
419 | /* if this attempt would hit where we started, indicate a complete | |
420 | * iteration has occurred */ | |
421 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
422 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
423 | return 1; | |
424 | } | |
425 | ||
36bdbc3f AP |
426 | dev_dbg(fe->dvb->device, "%s: drift:%i inversion:%i auto_step:%i " \ |
427 | "auto_sub_step:%i started_auto_step:%i\n", | |
428 | __func__, fepriv->lnb_drift, fepriv->inversion, | |
429 | fepriv->auto_step, fepriv->auto_sub_step, | |
430 | fepriv->started_auto_step); | |
1da177e4 LT |
431 | |
432 | /* set the frontend itself */ | |
ac3852c4 | 433 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 434 | if (autoinversion) |
ac3852c4 MCC |
435 | c->inversion = fepriv->inversion; |
436 | tmp = *c; | |
dea74869 | 437 | if (fe->ops.set_frontend) |
bc9cd273 | 438 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 439 | *c = tmp; |
01886255 JG |
440 | if (fe_set_err < 0) { |
441 | fepriv->state = FESTATE_ERROR; | |
442 | return fe_set_err; | |
443 | } | |
1da177e4 | 444 | |
ac3852c4 MCC |
445 | c->frequency = original_frequency; |
446 | c->inversion = original_inversion; | |
1da177e4 LT |
447 | |
448 | fepriv->auto_sub_step++; | |
449 | return 0; | |
450 | } | |
451 | ||
36cb557a AQ |
452 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
453 | { | |
0df289a2 | 454 | enum fe_status s = 0; |
01886255 | 455 | int retval = 0; |
36cb557a | 456 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 457 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
458 | |
459 | /* if we've got no parameters, just keep idling */ | |
460 | if (fepriv->state & FESTATE_IDLE) { | |
461 | fepriv->delay = 3*HZ; | |
462 | fepriv->quality = 0; | |
463 | return; | |
464 | } | |
465 | ||
466 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
467 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
468 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 469 | tmp = *c; |
dea74869 | 470 | if (fe->ops.set_frontend) |
bc9cd273 | 471 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 472 | *c = tmp; |
01886255 JG |
473 | if (retval < 0) |
474 | fepriv->state = FESTATE_ERROR; | |
475 | else | |
476 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
477 | } |
478 | fepriv->delay = 3*HZ; | |
479 | fepriv->quality = 0; | |
480 | return; | |
481 | } | |
482 | ||
483 | /* get the frontend status */ | |
484 | if (fepriv->state & FESTATE_RETUNE) { | |
485 | s = 0; | |
486 | } else { | |
dea74869 PB |
487 | if (fe->ops.read_status) |
488 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
489 | if (s != fepriv->status) { |
490 | dvb_frontend_add_event(fe, s); | |
491 | fepriv->status = s; | |
492 | } | |
493 | } | |
494 | ||
495 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
496 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
497 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
498 | fepriv->state = FESTATE_TUNED; | |
499 | ||
500 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 501 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
502 | (c->inversion == INVERSION_AUTO)) { |
503 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
504 | } |
505 | return; | |
506 | } | |
507 | ||
508 | /* if we are tuned already, check we're still locked */ | |
509 | if (fepriv->state & FESTATE_TUNED) { | |
510 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
511 | ||
512 | /* we're tuned, and the lock is still good... */ | |
513 | if (s & FE_HAS_LOCK) { | |
514 | return; | |
515 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
516 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
517 | fepriv->started_auto_step = fepriv->auto_step; | |
518 | fepriv->check_wrapped = 0; | |
519 | } | |
520 | } | |
521 | ||
522 | /* don't actually do anything if we're in the LOSTLOCK state, | |
523 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
524 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 525 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
526 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
527 | return; | |
528 | } | |
529 | ||
530 | /* don't do anything if we're in the DISEQC state, since this | |
531 | * might be someone with a motorized dish controlled by DISEQC. | |
532 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
533 | if (fepriv->state & FESTATE_DISEQC) { | |
534 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
535 | return; | |
536 | } | |
537 | ||
538 | /* if we're in the RETUNE state, set everything up for a brand | |
539 | * new scan, keeping the current inversion setting, as the next | |
540 | * tune is _very_ likely to require the same */ | |
541 | if (fepriv->state & FESTATE_RETUNE) { | |
542 | fepriv->lnb_drift = 0; | |
543 | fepriv->auto_step = 0; | |
544 | fepriv->auto_sub_step = 0; | |
545 | fepriv->started_auto_step = 0; | |
546 | fepriv->check_wrapped = 0; | |
547 | } | |
548 | ||
549 | /* fast zigzag. */ | |
550 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
551 | fepriv->delay = fepriv->min_delay; | |
552 | ||
2030c032 | 553 | /* perform a tune */ |
01886255 JG |
554 | retval = dvb_frontend_swzigzag_autotune(fe, |
555 | fepriv->check_wrapped); | |
556 | if (retval < 0) { | |
557 | return; | |
558 | } else if (retval) { | |
36cb557a AQ |
559 | /* OK, if we've run out of trials at the fast speed. |
560 | * Drop back to slow for the _next_ attempt */ | |
561 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
562 | fepriv->started_auto_step = fepriv->auto_step; | |
563 | return; | |
564 | } | |
565 | fepriv->check_wrapped = 1; | |
566 | ||
567 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
568 | * This ensures we cannot return from an | |
569 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
570 | * occurs */ | |
571 | if (fepriv->state & FESTATE_RETUNE) { | |
572 | fepriv->state = FESTATE_TUNING_FAST; | |
573 | } | |
574 | } | |
575 | ||
576 | /* slow zigzag */ | |
577 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
578 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
579 | ||
580 | /* Note: don't bother checking for wrapping; we stay in this | |
581 | * state until we get a lock */ | |
582 | dvb_frontend_swzigzag_autotune(fe, 0); | |
583 | } | |
584 | } | |
585 | ||
1da177e4 LT |
586 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
587 | { | |
0c53c70f | 588 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 589 | |
18ed2860 | 590 | if (fe->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
591 | return 1; |
592 | ||
593 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 594 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 595 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
596 | return 1; |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
601 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
602 | { | |
0c53c70f | 603 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
604 | |
605 | if (fepriv->wakeup) { | |
606 | fepriv->wakeup = 0; | |
607 | return 1; | |
608 | } | |
609 | return dvb_frontend_is_exiting(fe); | |
610 | } | |
611 | ||
612 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
613 | { | |
0c53c70f | 614 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
615 | |
616 | fepriv->wakeup = 1; | |
617 | wake_up_interruptible(&fepriv->wait_queue); | |
618 | } | |
619 | ||
1da177e4 LT |
620 | static int dvb_frontend_thread(void *data) |
621 | { | |
0c53c70f | 622 | struct dvb_frontend *fe = data; |
2ea9a08d | 623 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 624 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
0df289a2 | 625 | enum fe_status s; |
c59e7870 | 626 | enum dvbfe_algo algo; |
7e072221 | 627 | bool re_tune = false; |
6ae23224 | 628 | bool semheld = false; |
1da177e4 | 629 | |
36bdbc3f | 630 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 631 | |
36cb557a AQ |
632 | fepriv->check_wrapped = 0; |
633 | fepriv->quality = 0; | |
634 | fepriv->delay = 3*HZ; | |
1da177e4 | 635 | fepriv->status = 0; |
1da177e4 | 636 | fepriv->wakeup = 0; |
04c56d0e AQ |
637 | fepriv->reinitialise = 0; |
638 | ||
639 | dvb_frontend_init(fe); | |
1da177e4 | 640 | |
83144186 | 641 | set_freezable(); |
1da177e4 LT |
642 | while (1) { |
643 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 644 | restart: |
94238e9b | 645 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
646 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
647 | || freezing(current), | |
8eec1429 HP |
648 | fepriv->delay); |
649 | ||
650 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 651 | /* got signal or quitting */ |
6ae23224 JL |
652 | if (!down_interruptible(&fepriv->sem)) |
653 | semheld = true; | |
18ed2860 | 654 | fe->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
655 | break; |
656 | } | |
657 | ||
8eec1429 | 658 | if (try_to_freeze()) |
6591691b | 659 | goto restart; |
1da177e4 LT |
660 | |
661 | if (down_interruptible(&fepriv->sem)) | |
662 | break; | |
663 | ||
86f40cc3 AQ |
664 | if (fepriv->reinitialise) { |
665 | dvb_frontend_init(fe); | |
42f4e774 | 666 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 667 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 668 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 669 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
670 | fepriv->reinitialise = 0; |
671 | } | |
672 | ||
36cb557a | 673 | /* do an iteration of the tuning loop */ |
d772bd03 | 674 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
675 | algo = fe->ops.get_frontend_algo(fe); |
676 | switch (algo) { | |
677 | case DVBFE_ALGO_HW: | |
36bdbc3f | 678 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); |
c59e7870 | 679 | |
d772bd03 | 680 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 681 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 682 | re_tune = true; |
d772bd03 | 683 | fepriv->state = FESTATE_TUNED; |
45145b67 SA |
684 | } else { |
685 | re_tune = false; | |
d772bd03 MA |
686 | } |
687 | ||
c59e7870 | 688 | if (fe->ops.tune) |
7e072221 | 689 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 690 | |
2fac9a0f | 691 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
36bdbc3f | 692 | dev_dbg(fe->dvb->device, "%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
693 | dvb_frontend_add_event(fe, s); |
694 | fepriv->status = s; | |
695 | } | |
c59e7870 MA |
696 | break; |
697 | case DVBFE_ALGO_SW: | |
36bdbc3f | 698 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); |
70d90635 | 699 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
700 | break; |
701 | case DVBFE_ALGO_CUSTOM: | |
36bdbc3f | 702 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
c59e7870 | 703 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 704 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTAT_RETUNE\n", __func__); |
c59e7870 MA |
705 | fepriv->state = FESTATE_TUNED; |
706 | } | |
707 | /* Case where we are going to search for a carrier | |
708 | * User asked us to retune again for some reason, possibly | |
709 | * requesting a search with a new set of parameters | |
710 | */ | |
711 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 712 | if (fe->ops.search) { |
41da5320 | 713 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
714 | /* We did do a search as was requested, the flags are |
715 | * now unset as well and has the flags wrt to search. | |
716 | */ | |
7bcbdf38 AJ |
717 | } else { |
718 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
719 | } | |
c59e7870 MA |
720 | } |
721 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 722 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
723 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
724 | fepriv->delay = HZ / 2; | |
725 | } | |
2ea9a08d | 726 | dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out); |
7bcbdf38 AJ |
727 | fe->ops.read_status(fe, &s); |
728 | if (s != fepriv->status) { | |
729 | dvb_frontend_add_event(fe, s); /* update event list */ | |
730 | fepriv->status = s; | |
731 | if (!(s & FE_HAS_LOCK)) { | |
732 | fepriv->delay = HZ / 10; | |
733 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
734 | } else { | |
735 | fepriv->delay = 60 * HZ; | |
736 | } | |
c59e7870 MA |
737 | } |
738 | break; | |
739 | default: | |
36bdbc3f | 740 | dev_dbg(fe->dvb->device, "%s: UNDEFINED ALGO !\n", __func__); |
c59e7870 MA |
741 | break; |
742 | } | |
743 | } else { | |
4a4edcca | 744 | dvb_frontend_swzigzag(fe); |
c59e7870 | 745 | } |
1da177e4 LT |
746 | } |
747 | ||
608f62d6 OE |
748 | if (dvb_powerdown_on_sleep) { |
749 | if (fe->ops.set_voltage) | |
750 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 751 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
752 | if (fe->ops.i2c_gate_ctrl) |
753 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
754 | fe->ops.tuner_ops.sleep(fe); |
755 | if (fe->ops.i2c_gate_ctrl) | |
756 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 757 | } |
dea74869 PB |
758 | if (fe->ops.sleep) |
759 | fe->ops.sleep(fe); | |
1da177e4 LT |
760 | } |
761 | ||
8eec1429 | 762 | fepriv->thread = NULL; |
e36309f5 | 763 | if (kthread_should_stop()) |
18ed2860 | 764 | fe->exit = DVB_FE_DEVICE_REMOVED; |
e36309f5 | 765 | else |
18ed2860 | 766 | fe->exit = DVB_FE_NO_EXIT; |
1da177e4 LT |
767 | mb(); |
768 | ||
6ae23224 JL |
769 | if (semheld) |
770 | up(&fepriv->sem); | |
1da177e4 LT |
771 | dvb_frontend_wakeup(fe); |
772 | return 0; | |
773 | } | |
774 | ||
775 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
776 | { | |
0c53c70f | 777 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 778 | |
36bdbc3f | 779 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 780 | |
18ed2860 SK |
781 | if (fe->exit != DVB_FE_DEVICE_REMOVED) |
782 | fe->exit = DVB_FE_NORMAL_EXIT; | |
1da177e4 LT |
783 | mb(); |
784 | ||
8eec1429 | 785 | if (!fepriv->thread) |
1da177e4 LT |
786 | return; |
787 | ||
8eec1429 | 788 | kthread_stop(fepriv->thread); |
ca5be9cd | 789 | |
a0a4714c | 790 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
791 | fepriv->state = FESTATE_IDLE; |
792 | ||
793 | /* paranoia check in case a signal arrived */ | |
8eec1429 | 794 | if (fepriv->thread) |
36bdbc3f AP |
795 | dev_warn(fe->dvb->device, |
796 | "dvb_frontend_stop: warning: thread %p won't exit\n", | |
8eec1429 | 797 | fepriv->thread); |
1da177e4 LT |
798 | } |
799 | ||
83b75b04 | 800 | /* |
4deea4cb MCC |
801 | * Sleep for the amount of time given by add_usec parameter |
802 | * | |
803 | * This needs to be as precise as possible, as it affects the detection of | |
804 | * the dish tone command at the satellite subsystem. The precision is improved | |
805 | * by using a scheduled msleep followed by udelay for the remainder. | |
83b75b04 | 806 | */ |
9056a23b | 807 | void dvb_frontend_sleep_until(ktime_t *waketime, u32 add_usec) |
83b75b04 | 808 | { |
a733a41a | 809 | s32 delta; |
83b75b04 | 810 | |
a733a41a | 811 | *waketime = ktime_add_us(*waketime, add_usec); |
6b3f9998 | 812 | delta = ktime_us_delta(ktime_get_boottime(), *waketime); |
83b75b04 N |
813 | if (delta > 2500) { |
814 | msleep((delta - 1500) / 1000); | |
6b3f9998 | 815 | delta = ktime_us_delta(ktime_get_boottime(), *waketime); |
83b75b04 N |
816 | } |
817 | if (delta > 0) | |
818 | udelay(delta); | |
819 | } | |
820 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
821 | ||
1da177e4 LT |
822 | static int dvb_frontend_start(struct dvb_frontend *fe) |
823 | { | |
824 | int ret; | |
0c53c70f | 825 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 826 | struct task_struct *fe_thread; |
1da177e4 | 827 | |
36bdbc3f | 828 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 829 | |
8eec1429 | 830 | if (fepriv->thread) { |
18ed2860 | 831 | if (fe->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
832 | return 0; |
833 | else | |
834 | dvb_frontend_stop (fe); | |
835 | } | |
836 | ||
837 | if (signal_pending(current)) | |
838 | return -EINTR; | |
839 | if (down_interruptible (&fepriv->sem)) | |
840 | return -EINTR; | |
841 | ||
842 | fepriv->state = FESTATE_IDLE; | |
18ed2860 | 843 | fe->exit = DVB_FE_NO_EXIT; |
8eec1429 | 844 | fepriv->thread = NULL; |
1da177e4 LT |
845 | mb(); |
846 | ||
8eec1429 | 847 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 848 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
849 | if (IS_ERR(fe_thread)) { |
850 | ret = PTR_ERR(fe_thread); | |
36bdbc3f AP |
851 | dev_warn(fe->dvb->device, |
852 | "dvb_frontend_start: failed to start kthread (%d)\n", | |
853 | ret); | |
1da177e4 LT |
854 | up(&fepriv->sem); |
855 | return ret; | |
856 | } | |
8eec1429 | 857 | fepriv->thread = fe_thread; |
1da177e4 LT |
858 | return 0; |
859 | } | |
860 | ||
2030c032 | 861 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
862 | u32 *freq_min, u32 *freq_max) |
863 | { | |
864 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
865 | ||
866 | if (fe->ops.info.frequency_max == 0) | |
867 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
868 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
869 | *freq_max = fe->ops.info.frequency_max; | |
870 | else | |
871 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
872 | ||
873 | if (*freq_min == 0 || *freq_max == 0) | |
36bdbc3f AP |
874 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
875 | fe->dvb->num, fe->id); | |
c471b331 OE |
876 | } |
877 | ||
5bfaadde | 878 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 879 | { |
5bfaadde | 880 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
881 | u32 freq_min; |
882 | u32 freq_max; | |
883 | ||
1fab46f0 | 884 | /* range check: frequency */ |
2030c032 | 885 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
886 | if ((freq_min && c->frequency < freq_min) || |
887 | (freq_max && c->frequency > freq_max)) { | |
36bdbc3f AP |
888 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
889 | fe->dvb->num, fe->id, c->frequency, | |
890 | freq_min, freq_max); | |
1fab46f0 OE |
891 | return -EINVAL; |
892 | } | |
893 | ||
894 | /* range check: symbol rate */ | |
5bfaadde MCC |
895 | switch (c->delivery_system) { |
896 | case SYS_DVBS: | |
897 | case SYS_DVBS2: | |
898 | case SYS_TURBO: | |
899 | case SYS_DVBC_ANNEX_A: | |
900 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 901 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 902 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 903 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 904 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
36bdbc3f AP |
905 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
906 | fe->dvb->num, fe->id, c->symbol_rate, | |
907 | fe->ops.info.symbol_rate_min, | |
908 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
909 | return -EINVAL; |
910 | } | |
5bfaadde MCC |
911 | default: |
912 | break; | |
1fab46f0 OE |
913 | } |
914 | ||
915 | return 0; | |
916 | } | |
917 | ||
b6e760f3 PB |
918 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
919 | { | |
50727719 | 920 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 | 921 | int i; |
149709f5 | 922 | u32 delsys; |
b6e760f3 | 923 | |
149709f5 | 924 | delsys = c->delivery_system; |
808d24d6 | 925 | memset(c, 0, offsetof(struct dtv_frontend_properties, strength)); |
149709f5 | 926 | c->delivery_system = delsys; |
50727719 AO |
927 | |
928 | c->state = DTV_CLEAR; | |
26c924fe | 929 | |
36bdbc3f AP |
930 | dev_dbg(fe->dvb->device, "%s: Clearing cache for delivery system %d\n", |
931 | __func__, c->delivery_system); | |
26c924fe | 932 | |
50727719 | 933 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 934 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
935 | c->guard_interval = GUARD_INTERVAL_AUTO; |
936 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 937 | c->symbol_rate = 0; |
50727719 AO |
938 | c->code_rate_HP = FEC_AUTO; |
939 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 940 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 941 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 942 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
943 | c->sectone = SEC_TONE_OFF; |
944 | c->pilot = PILOT_AUTO; | |
50727719 | 945 | |
a520ca97 MCC |
946 | c->isdbt_partial_reception = 0; |
947 | c->isdbt_sb_mode = 0; | |
948 | c->isdbt_sb_subchannel = 0; | |
949 | c->isdbt_sb_segment_idx = 0; | |
950 | c->isdbt_sb_segment_count = 0; | |
951 | c->isdbt_layer_enabled = 0; | |
b6e760f3 | 952 | for (i = 0; i < 3; i++) { |
50727719 AO |
953 | c->layer[i].fec = FEC_AUTO; |
954 | c->layer[i].modulation = QAM_AUTO; | |
a520ca97 MCC |
955 | c->layer[i].interleaving = 0; |
956 | c->layer[i].segment_count = 0; | |
b6e760f3 PB |
957 | } |
958 | ||
287cefd0 | 959 | c->stream_id = NO_STREAM_ID_FILTER; |
26c924fe | 960 | |
5bfaadde MCC |
961 | switch (c->delivery_system) { |
962 | case SYS_DVBS: | |
963 | case SYS_DVBS2: | |
964 | case SYS_TURBO: | |
965 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
966 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
967 | break; | |
968 | case SYS_ATSC: | |
969 | c->modulation = VSB_8; | |
970 | break; | |
8e281faf AT |
971 | case SYS_ISDBS: |
972 | c->symbol_rate = 28860000; | |
973 | c->rolloff = ROLLOFF_35; | |
974 | c->bandwidth_hz = c->symbol_rate / 100 * 135; | |
975 | break; | |
5bfaadde MCC |
976 | default: |
977 | c->modulation = QAM_AUTO; | |
978 | break; | |
979 | } | |
980 | ||
33eebec5 AP |
981 | c->lna = LNA_AUTO; |
982 | ||
b6e760f3 PB |
983 | return 0; |
984 | } | |
985 | ||
986 | #define _DTV_CMD(n, s, b) \ | |
987 | [n] = { \ | |
988 | .name = #n, \ | |
989 | .cmd = n, \ | |
990 | .set = s,\ | |
991 | .buffer = b \ | |
992 | } | |
993 | ||
ec05a642 | 994 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
995 | _DTV_CMD(DTV_TUNE, 1, 0), |
996 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
997 | |
998 | /* Set */ | |
06d3a396 MCC |
999 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
1000 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
1001 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
1002 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
1003 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
1004 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
1005 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
1006 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
1007 | _DTV_CMD(DTV_TONE, 1, 0), | |
1008 | _DTV_CMD(DTV_PILOT, 1, 0), | |
1009 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
1010 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
1011 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
1012 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
1013 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
1014 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
1015 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
224b6642 | 1016 | _DTV_CMD(DTV_INTERLEAVING, 1, 0), |
b6e760f3 PB |
1017 | |
1018 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
1019 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
1020 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1021 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1022 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1023 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1024 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1025 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1026 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1027 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1028 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1029 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1030 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1031 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1032 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1033 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1034 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1035 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1036 | ||
287cefd0 EP |
1037 | _DTV_CMD(DTV_STREAM_ID, 1, 0), |
1038 | _DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0), | |
8a2697ab | 1039 | _DTV_CMD(DTV_LNA, 1, 0), |
98293ef3 | 1040 | |
6b73eeaf | 1041 | /* Get */ |
06d3a396 MCC |
1042 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1043 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
ba2780c7 MA |
1044 | |
1045 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
ca689488 MK |
1046 | |
1047 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 1, 0), | |
1048 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 1, 0), | |
1049 | ||
1050 | _DTV_CMD(DTV_ATSCMH_FIC_VER, 0, 0), | |
ca689488 MK |
1051 | _DTV_CMD(DTV_ATSCMH_NOG, 0, 0), |
1052 | _DTV_CMD(DTV_ATSCMH_TNOG, 0, 0), | |
1053 | _DTV_CMD(DTV_ATSCMH_SGN, 0, 0), | |
1054 | _DTV_CMD(DTV_ATSCMH_PRC, 0, 0), | |
1055 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_MODE, 0, 0), | |
ca689488 MK |
1056 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_PRI, 0, 0), |
1057 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_SEC, 0, 0), | |
1058 | _DTV_CMD(DTV_ATSCMH_SCCC_BLOCK_MODE, 0, 0), | |
1059 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_A, 0, 0), | |
1060 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), | |
1061 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), | |
1062 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), | |
7cd4ece5 MCC |
1063 | |
1064 | /* Statistics API */ | |
1065 | _DTV_CMD(DTV_STAT_SIGNAL_STRENGTH, 0, 0), | |
1066 | _DTV_CMD(DTV_STAT_CNR, 0, 0), | |
1067 | _DTV_CMD(DTV_STAT_PRE_ERROR_BIT_COUNT, 0, 0), | |
1068 | _DTV_CMD(DTV_STAT_PRE_TOTAL_BIT_COUNT, 0, 0), | |
1069 | _DTV_CMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0, 0), | |
1070 | _DTV_CMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0, 0), | |
1071 | _DTV_CMD(DTV_STAT_ERROR_BLOCK_COUNT, 0, 0), | |
1072 | _DTV_CMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0, 0), | |
6b73eeaf ST |
1073 | }; |
1074 | ||
c29ebb64 MCC |
1075 | static void dtv_property_dump(struct dvb_frontend *fe, |
1076 | bool is_set, | |
1077 | struct dtv_property *tvp) | |
6b73eeaf ST |
1078 | { |
1079 | int i; | |
1080 | ||
106ff9e0 | 1081 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
c29ebb64 MCC |
1082 | dev_warn(fe->dvb->device, "%s: %s tvp.cmd = 0x%08x undefined\n", |
1083 | __func__, | |
1084 | is_set ? "SET" : "GET", | |
1085 | tvp->cmd); | |
4aae8efb DB |
1086 | return; |
1087 | } | |
1088 | ||
c29ebb64 MCC |
1089 | dev_dbg(fe->dvb->device, "%s: %s tvp.cmd = 0x%08x (%s)\n", __func__, |
1090 | is_set ? "SET" : "GET", | |
1091 | tvp->cmd, | |
1092 | dtv_cmds[tvp->cmd].name); | |
6b73eeaf | 1093 | |
36bdbc3f AP |
1094 | if (dtv_cmds[tvp->cmd].buffer) { |
1095 | dev_dbg(fe->dvb->device, "%s: tvp.u.buffer.len = 0x%02x\n", | |
1096 | __func__, tvp->u.buffer.len); | |
6b73eeaf ST |
1097 | |
1098 | for(i = 0; i < tvp->u.buffer.len; i++) | |
36bdbc3f AP |
1099 | dev_dbg(fe->dvb->device, |
1100 | "%s: tvp.u.buffer.data[0x%02x] = 0x%02x\n", | |
1101 | __func__, i, tvp->u.buffer.data[i]); | |
1102 | } else { | |
1103 | dev_dbg(fe->dvb->device, "%s: tvp.u.data = 0x%08x\n", __func__, | |
1104 | tvp->u.data); | |
1105 | } | |
6b73eeaf ST |
1106 | } |
1107 | ||
ee33c525 ST |
1108 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1109 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1110 | * it's being used for the legacy or new API, reducing code and complexity. | |
1111 | */ | |
5bfaadde MCC |
1112 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1113 | struct dtv_frontend_properties *c, | |
1114 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1115 | { |
ee33c525 ST |
1116 | c->frequency = p->frequency; |
1117 | c->inversion = p->inversion; | |
1118 | ||
5bfaadde MCC |
1119 | switch (dvbv3_type(c->delivery_system)) { |
1120 | case DVBV3_QPSK: | |
36bdbc3f | 1121 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
ee33c525 ST |
1122 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1123 | c->fec_inner = p->u.qpsk.fec_inner; | |
1124 | break; | |
5bfaadde | 1125 | case DVBV3_QAM: |
36bdbc3f | 1126 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
ee33c525 ST |
1127 | c->symbol_rate = p->u.qam.symbol_rate; |
1128 | c->fec_inner = p->u.qam.fec_inner; | |
1129 | c->modulation = p->u.qam.modulation; | |
1130 | break; | |
5bfaadde | 1131 | case DVBV3_OFDM: |
36bdbc3f AP |
1132 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
1133 | ||
9a27e6a0 MCC |
1134 | switch (p->u.ofdm.bandwidth) { |
1135 | case BANDWIDTH_10_MHZ: | |
1136 | c->bandwidth_hz = 10000000; | |
1137 | break; | |
1138 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1139 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1140 | break; |
1141 | case BANDWIDTH_7_MHZ: | |
1142 | c->bandwidth_hz = 7000000; | |
1143 | break; | |
1144 | case BANDWIDTH_6_MHZ: | |
1145 | c->bandwidth_hz = 6000000; | |
1146 | break; | |
1147 | case BANDWIDTH_5_MHZ: | |
1148 | c->bandwidth_hz = 5000000; | |
1149 | break; | |
1150 | case BANDWIDTH_1_712_MHZ: | |
1151 | c->bandwidth_hz = 1712000; | |
1152 | break; | |
1153 | case BANDWIDTH_AUTO: | |
75b7f943 | 1154 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1155 | } |
1156 | ||
ee33c525 ST |
1157 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1158 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1159 | c->modulation = p->u.ofdm.constellation; | |
1160 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1161 | c->guard_interval = p->u.ofdm.guard_interval; | |
1162 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1163 | break; | |
5bfaadde | 1164 | case DVBV3_ATSC: |
36bdbc3f | 1165 | dev_dbg(fe->dvb->device, "%s: Preparing ATSC req\n", __func__); |
ee33c525 | 1166 | c->modulation = p->u.vsb.modulation; |
ca689488 MK |
1167 | if (c->delivery_system == SYS_ATSCMH) |
1168 | break; | |
80a773c9 ST |
1169 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1170 | c->delivery_system = SYS_ATSC; | |
1171 | else | |
1172 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1173 | break; |
5bfaadde | 1174 | case DVBV3_UNKNOWN: |
36bdbc3f AP |
1175 | dev_err(fe->dvb->device, |
1176 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1177 | __func__, c->delivery_system); | |
5bfaadde | 1178 | return -EINVAL; |
ee33c525 | 1179 | } |
5bfaadde MCC |
1180 | |
1181 | return 0; | |
ee33c525 ST |
1182 | } |
1183 | ||
d5748f10 ST |
1184 | /* Ensure the cached values are set correctly in the frontend |
1185 | * legacy tuning structures, for the advanced tuning API. | |
1186 | */ | |
2ea9a08d MCC |
1187 | static int |
1188 | dtv_property_legacy_params_sync(struct dvb_frontend *fe, | |
1189 | const struct dtv_frontend_properties *c, | |
1190 | struct dvb_frontend_parameters *p) | |
6b73eeaf | 1191 | { |
d5748f10 ST |
1192 | p->frequency = c->frequency; |
1193 | p->inversion = c->inversion; | |
6b73eeaf | 1194 | |
5bfaadde MCC |
1195 | switch (dvbv3_type(c->delivery_system)) { |
1196 | case DVBV3_UNKNOWN: | |
36bdbc3f AP |
1197 | dev_err(fe->dvb->device, |
1198 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1199 | __func__, c->delivery_system); | |
5bfaadde MCC |
1200 | return -EINVAL; |
1201 | case DVBV3_QPSK: | |
36bdbc3f | 1202 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
d5748f10 ST |
1203 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1204 | p->u.qpsk.fec_inner = c->fec_inner; | |
1205 | break; | |
5bfaadde | 1206 | case DVBV3_QAM: |
36bdbc3f | 1207 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
d5748f10 ST |
1208 | p->u.qam.symbol_rate = c->symbol_rate; |
1209 | p->u.qam.fec_inner = c->fec_inner; | |
1210 | p->u.qam.modulation = c->modulation; | |
1211 | break; | |
5bfaadde | 1212 | case DVBV3_OFDM: |
36bdbc3f | 1213 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
9a27e6a0 MCC |
1214 | switch (c->bandwidth_hz) { |
1215 | case 10000000: | |
1216 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1217 | break; | |
1218 | case 8000000: | |
75b7f943 | 1219 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1220 | break; |
1221 | case 7000000: | |
1222 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1223 | break; | |
1224 | case 6000000: | |
1225 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1226 | break; | |
1227 | case 5000000: | |
1228 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1229 | break; | |
1230 | case 1712000: | |
1231 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1232 | break; | |
1233 | case 0: | |
1234 | default: | |
75b7f943 | 1235 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1236 | } |
d5748f10 ST |
1237 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1238 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1239 | p->u.ofdm.constellation = c->modulation; | |
1240 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1241 | p->u.ofdm.guard_interval = c->guard_interval; | |
1242 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1243 | break; | |
5bfaadde | 1244 | case DVBV3_ATSC: |
36bdbc3f | 1245 | dev_dbg(fe->dvb->device, "%s: Preparing VSB req\n", __func__); |
d5748f10 ST |
1246 | p->u.vsb.modulation = c->modulation; |
1247 | break; | |
1248 | } | |
5bfaadde | 1249 | return 0; |
6b73eeaf ST |
1250 | } |
1251 | ||
a689e365 MCC |
1252 | /** |
1253 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1254 | * @fe: struct dvb_frontend pointer | |
1255 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1256 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1257 | * | |
1258 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1259 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1260 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1261 | */ | |
1262 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
2ea9a08d | 1263 | struct dtv_frontend_properties *c, |
a689e365 MCC |
1264 | struct dvb_frontend_parameters *p_out) |
1265 | { | |
a689e365 MCC |
1266 | int r; |
1267 | ||
a689e365 | 1268 | if (fe->ops.get_frontend) { |
7e3e68bc | 1269 | r = fe->ops.get_frontend(fe, c); |
a689e365 MCC |
1270 | if (unlikely(r < 0)) |
1271 | return r; | |
7c61d80a | 1272 | if (p_out) |
2ea9a08d | 1273 | dtv_property_legacy_params_sync(fe, c, p_out); |
a689e365 MCC |
1274 | return 0; |
1275 | } | |
1276 | ||
7c61d80a | 1277 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1278 | return 0; |
a689e365 MCC |
1279 | } |
1280 | ||
16ef8def | 1281 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1282 | unsigned int cmd, void *parg); |
16ef8def | 1283 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1284 | unsigned int cmd, void *parg); |
1285 | ||
072ce0c5 | 1286 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1287 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1288 | struct dtv_property *tvp, |
16ef8def | 1289 | struct file *file) |
363429a0 | 1290 | { |
5bfaadde | 1291 | int r, ncaps; |
bfbf2dae | 1292 | |
363429a0 | 1293 | switch(tvp->cmd) { |
ba2780c7 | 1294 | case DTV_ENUM_DELSYS: |
5bfaadde | 1295 | ncaps = 0; |
0123f29c | 1296 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
5bfaadde MCC |
1297 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; |
1298 | ncaps++; | |
1299 | } | |
1300 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1301 | break; |
363429a0 | 1302 | case DTV_FREQUENCY: |
50727719 | 1303 | tvp->u.data = c->frequency; |
363429a0 ST |
1304 | break; |
1305 | case DTV_MODULATION: | |
50727719 | 1306 | tvp->u.data = c->modulation; |
363429a0 | 1307 | break; |
75b7f943 | 1308 | case DTV_BANDWIDTH_HZ: |
50727719 | 1309 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1310 | break; |
1311 | case DTV_INVERSION: | |
50727719 | 1312 | tvp->u.data = c->inversion; |
363429a0 ST |
1313 | break; |
1314 | case DTV_SYMBOL_RATE: | |
50727719 | 1315 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1316 | break; |
1317 | case DTV_INNER_FEC: | |
50727719 | 1318 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1319 | break; |
1320 | case DTV_PILOT: | |
50727719 | 1321 | tvp->u.data = c->pilot; |
363429a0 ST |
1322 | break; |
1323 | case DTV_ROLLOFF: | |
50727719 | 1324 | tvp->u.data = c->rolloff; |
363429a0 ST |
1325 | break; |
1326 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1327 | tvp->u.data = c->delivery_system; |
363429a0 | 1328 | break; |
363429a0 | 1329 | case DTV_VOLTAGE: |
50727719 | 1330 | tvp->u.data = c->voltage; |
363429a0 ST |
1331 | break; |
1332 | case DTV_TONE: | |
50727719 | 1333 | tvp->u.data = c->sectone; |
363429a0 | 1334 | break; |
eacf8d8d ST |
1335 | case DTV_API_VERSION: |
1336 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1337 | break; | |
a4de91be | 1338 | case DTV_CODE_RATE_HP: |
50727719 | 1339 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1340 | break; |
1341 | case DTV_CODE_RATE_LP: | |
50727719 | 1342 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1343 | break; |
b87625f0 | 1344 | case DTV_GUARD_INTERVAL: |
50727719 | 1345 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1346 | break; |
1347 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1348 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1349 | break; |
ef526f42 | 1350 | case DTV_HIERARCHY: |
50727719 | 1351 | tvp->u.data = c->hierarchy; |
ef526f42 | 1352 | break; |
224b6642 AP |
1353 | case DTV_INTERLEAVING: |
1354 | tvp->u.data = c->interleaving; | |
1355 | break; | |
b6e760f3 PB |
1356 | |
1357 | /* ISDB-T Support here */ | |
1358 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1359 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1360 | break; |
1361 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1362 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1363 | break; |
1364 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1365 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1366 | break; |
1367 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1368 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1369 | break; |
1370 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1371 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1372 | break; |
e7b7949a | 1373 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1374 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1375 | break; |
b6e760f3 | 1376 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1377 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1378 | break; |
1379 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1380 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1381 | break; |
1382 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1383 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1384 | break; |
1385 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1386 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1387 | break; |
1388 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1389 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1390 | break; |
1391 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1392 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1393 | break; |
1394 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1395 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1396 | break; |
1397 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1398 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1399 | break; |
1400 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1401 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1402 | break; |
1403 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1404 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1405 | break; |
1406 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1407 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1408 | break; |
1409 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1410 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1411 | break; |
287cefd0 EP |
1412 | |
1413 | /* Multistream support */ | |
1414 | case DTV_STREAM_ID: | |
1415 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1416 | tvp->u.data = c->stream_id; | |
94d56ffa | 1417 | break; |
ca689488 MK |
1418 | |
1419 | /* ATSC-MH */ | |
1420 | case DTV_ATSCMH_FIC_VER: | |
1421 | tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver; | |
1422 | break; | |
1423 | case DTV_ATSCMH_PARADE_ID: | |
1424 | tvp->u.data = fe->dtv_property_cache.atscmh_parade_id; | |
1425 | break; | |
1426 | case DTV_ATSCMH_NOG: | |
1427 | tvp->u.data = fe->dtv_property_cache.atscmh_nog; | |
1428 | break; | |
1429 | case DTV_ATSCMH_TNOG: | |
1430 | tvp->u.data = fe->dtv_property_cache.atscmh_tnog; | |
1431 | break; | |
1432 | case DTV_ATSCMH_SGN: | |
1433 | tvp->u.data = fe->dtv_property_cache.atscmh_sgn; | |
1434 | break; | |
1435 | case DTV_ATSCMH_PRC: | |
1436 | tvp->u.data = fe->dtv_property_cache.atscmh_prc; | |
1437 | break; | |
1438 | case DTV_ATSCMH_RS_FRAME_MODE: | |
1439 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_mode; | |
1440 | break; | |
1441 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1442 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_ensemble; | |
1443 | break; | |
1444 | case DTV_ATSCMH_RS_CODE_MODE_PRI: | |
1445 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_pri; | |
1446 | break; | |
1447 | case DTV_ATSCMH_RS_CODE_MODE_SEC: | |
1448 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_sec; | |
1449 | break; | |
1450 | case DTV_ATSCMH_SCCC_BLOCK_MODE: | |
1451 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_block_mode; | |
1452 | break; | |
1453 | case DTV_ATSCMH_SCCC_CODE_MODE_A: | |
1454 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_a; | |
1455 | break; | |
1456 | case DTV_ATSCMH_SCCC_CODE_MODE_B: | |
1457 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_b; | |
1458 | break; | |
1459 | case DTV_ATSCMH_SCCC_CODE_MODE_C: | |
1460 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_c; | |
1461 | break; | |
1462 | case DTV_ATSCMH_SCCC_CODE_MODE_D: | |
1463 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; | |
1464 | break; | |
ca689488 | 1465 | |
33eebec5 AP |
1466 | case DTV_LNA: |
1467 | tvp->u.data = c->lna; | |
1468 | break; | |
1469 | ||
7cd4ece5 MCC |
1470 | /* Fill quality measures */ |
1471 | case DTV_STAT_SIGNAL_STRENGTH: | |
1472 | tvp->u.st = c->strength; | |
1473 | break; | |
1474 | case DTV_STAT_CNR: | |
1475 | tvp->u.st = c->cnr; | |
1476 | break; | |
1477 | case DTV_STAT_PRE_ERROR_BIT_COUNT: | |
1478 | tvp->u.st = c->pre_bit_error; | |
1479 | break; | |
1480 | case DTV_STAT_PRE_TOTAL_BIT_COUNT: | |
1481 | tvp->u.st = c->pre_bit_count; | |
1482 | break; | |
1483 | case DTV_STAT_POST_ERROR_BIT_COUNT: | |
1484 | tvp->u.st = c->post_bit_error; | |
1485 | break; | |
1486 | case DTV_STAT_POST_TOTAL_BIT_COUNT: | |
1487 | tvp->u.st = c->post_bit_count; | |
1488 | break; | |
1489 | case DTV_STAT_ERROR_BLOCK_COUNT: | |
1490 | tvp->u.st = c->block_error; | |
1491 | break; | |
1492 | case DTV_STAT_TOTAL_BLOCK_COUNT: | |
1493 | tvp->u.st = c->block_count; | |
1494 | break; | |
363429a0 | 1495 | default: |
94a93e5f MCC |
1496 | dev_dbg(fe->dvb->device, |
1497 | "%s: FE property %d doesn't exist\n", | |
1498 | __func__, tvp->cmd); | |
aff8ab5c | 1499 | return -EINVAL; |
363429a0 ST |
1500 | } |
1501 | ||
e23d9ae3 AO |
1502 | /* Allow the frontend to override outgoing properties */ |
1503 | if (fe->ops.get_property) { | |
1504 | r = fe->ops.get_property(fe, tvp); | |
1505 | if (r < 0) | |
1506 | return r; | |
1507 | } | |
1508 | ||
c29ebb64 | 1509 | dtv_property_dump(fe, false, tvp); |
639544d7 | 1510 | |
aff8ab5c | 1511 | return 0; |
363429a0 ST |
1512 | } |
1513 | ||
5bfaadde MCC |
1514 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1515 | ||
04be0f76 MCC |
1516 | static bool is_dvbv3_delsys(u32 delsys) |
1517 | { | |
1518 | bool status; | |
1519 | ||
1520 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || | |
1521 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
1522 | ||
1523 | return status; | |
1524 | } | |
1525 | ||
52dee392 MCC |
1526 | /** |
1527 | * emulate_delivery_system - emulate a DVBv5 delivery system with a DVBv3 type | |
1528 | * @fe: struct frontend; | |
1529 | * @delsys: DVBv5 type that will be used for emulation | |
1530 | * | |
1531 | * Provides emulation for delivery systems that are compatible with the old | |
1532 | * DVBv3 call. Among its usages, it provices support for ISDB-T, and allows | |
1533 | * using a DVB-S2 only frontend just like it were a DVB-S, if the frontent | |
1534 | * parameters are compatible with DVB-S spec. | |
1535 | */ | |
1536 | static int emulate_delivery_system(struct dvb_frontend *fe, u32 delsys) | |
04be0f76 | 1537 | { |
be431b16 | 1538 | int i; |
04be0f76 | 1539 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
04be0f76 | 1540 | |
3626479e MCC |
1541 | c->delivery_system = delsys; |
1542 | ||
04be0f76 | 1543 | /* |
52dee392 | 1544 | * If the call is for ISDB-T, put it into full-seg, auto mode, TV |
04be0f76 | 1545 | */ |
52dee392 MCC |
1546 | if (c->delivery_system == SYS_ISDBT) { |
1547 | dev_dbg(fe->dvb->device, | |
1548 | "%s: Using defaults for SYS_ISDBT\n", | |
1549 | __func__); | |
04be0f76 | 1550 | |
52dee392 MCC |
1551 | if (!c->bandwidth_hz) |
1552 | c->bandwidth_hz = 6000000; | |
1553 | ||
1554 | c->isdbt_partial_reception = 0; | |
1555 | c->isdbt_sb_mode = 0; | |
1556 | c->isdbt_sb_subchannel = 0; | |
1557 | c->isdbt_sb_segment_idx = 0; | |
1558 | c->isdbt_sb_segment_count = 0; | |
1559 | c->isdbt_layer_enabled = 7; | |
1560 | for (i = 0; i < 3; i++) { | |
1561 | c->layer[i].fec = FEC_AUTO; | |
1562 | c->layer[i].modulation = QAM_AUTO; | |
1563 | c->layer[i].interleaving = 0; | |
1564 | c->layer[i].segment_count = 0; | |
04be0f76 MCC |
1565 | } |
1566 | } | |
36bdbc3f | 1567 | dev_dbg(fe->dvb->device, "%s: change delivery system on cache to %d\n", |
52dee392 | 1568 | __func__, c->delivery_system); |
9474c5e6 | 1569 | |
04be0f76 MCC |
1570 | return 0; |
1571 | } | |
1572 | ||
52dee392 MCC |
1573 | /** |
1574 | * dvbv5_set_delivery_system - Sets the delivery system for a DVBv5 API call | |
1575 | * @fe: frontend struct | |
1576 | * @desired_system: delivery system requested by the user | |
1577 | * | |
1578 | * A DVBv5 call know what's the desired system it wants. So, set it. | |
1579 | * | |
1580 | * There are, however, a few known issues with early DVBv5 applications that | |
1581 | * are also handled by this logic: | |
1582 | * | |
1583 | * 1) Some early apps use SYS_UNDEFINED as the desired delivery system. | |
1584 | * This is an API violation, but, as we don't want to break userspace, | |
1585 | * convert it to the first supported delivery system. | |
1586 | * 2) Some apps might be using a DVBv5 call in a wrong way, passing, for | |
1587 | * example, SYS_DVBT instead of SYS_ISDBT. This is because early usage of | |
1588 | * ISDB-T provided backward compat with DVB-T. | |
1589 | */ | |
be431b16 MCC |
1590 | static int dvbv5_set_delivery_system(struct dvb_frontend *fe, |
1591 | u32 desired_system) | |
1592 | { | |
1593 | int ncaps; | |
1594 | u32 delsys = SYS_UNDEFINED; | |
1595 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1596 | enum dvbv3_emulation_type type; | |
1597 | ||
1598 | /* | |
1599 | * It was reported that some old DVBv5 applications were | |
1600 | * filling delivery_system with SYS_UNDEFINED. If this happens, | |
1601 | * assume that the application wants to use the first supported | |
1602 | * delivery system. | |
1603 | */ | |
52dee392 MCC |
1604 | if (desired_system == SYS_UNDEFINED) |
1605 | desired_system = fe->ops.delsys[0]; | |
be431b16 MCC |
1606 | |
1607 | /* | |
52dee392 MCC |
1608 | * This is a DVBv5 call. So, it likely knows the supported |
1609 | * delivery systems. So, check if the desired delivery system is | |
1610 | * supported | |
1611 | */ | |
be431b16 | 1612 | ncaps = 0; |
0123f29c | 1613 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
be431b16 MCC |
1614 | if (fe->ops.delsys[ncaps] == desired_system) { |
1615 | c->delivery_system = desired_system; | |
1616 | dev_dbg(fe->dvb->device, | |
1617 | "%s: Changing delivery system to %d\n", | |
1618 | __func__, desired_system); | |
1619 | return 0; | |
1620 | } | |
1621 | ncaps++; | |
1622 | } | |
1623 | ||
1624 | /* | |
52dee392 MCC |
1625 | * The requested delivery system isn't supported. Maybe userspace |
1626 | * is requesting a DVBv3 compatible delivery system. | |
1627 | * | |
1628 | * The emulation only works if the desired system is one of the | |
1629 | * delivery systems supported by DVBv3 API | |
be431b16 | 1630 | */ |
be431b16 MCC |
1631 | if (!is_dvbv3_delsys(desired_system)) { |
1632 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1633 | "%s: Delivery system %d not supported.\n", |
1634 | __func__, desired_system); | |
be431b16 MCC |
1635 | return -EINVAL; |
1636 | } | |
1637 | ||
52dee392 MCC |
1638 | type = dvbv3_type(desired_system); |
1639 | ||
be431b16 MCC |
1640 | /* |
1641 | * Get the last non-DVBv3 delivery system that has the same type | |
1642 | * of the desired system | |
1643 | */ | |
1644 | ncaps = 0; | |
0123f29c | 1645 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
52dee392 | 1646 | if (dvbv3_type(fe->ops.delsys[ncaps]) == type) |
be431b16 MCC |
1647 | delsys = fe->ops.delsys[ncaps]; |
1648 | ncaps++; | |
1649 | } | |
52dee392 | 1650 | |
be431b16 MCC |
1651 | /* There's nothing compatible with the desired delivery system */ |
1652 | if (delsys == SYS_UNDEFINED) { | |
1653 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1654 | "%s: Delivery system %d not supported on emulation mode.\n", |
1655 | __func__, desired_system); | |
be431b16 MCC |
1656 | return -EINVAL; |
1657 | } | |
1658 | ||
52dee392 MCC |
1659 | dev_dbg(fe->dvb->device, |
1660 | "%s: Using delivery system %d emulated as if it were %d\n", | |
1661 | __func__, delsys, desired_system); | |
1662 | ||
1663 | return emulate_delivery_system(fe, desired_system); | |
be431b16 MCC |
1664 | } |
1665 | ||
52dee392 MCC |
1666 | /** |
1667 | * dvbv3_set_delivery_system - Sets the delivery system for a DVBv3 API call | |
1668 | * @fe: frontend struct | |
1669 | * | |
1670 | * A DVBv3 call doesn't know what's the desired system it wants. It also | |
1671 | * doesn't allow to switch between different types. Due to that, userspace | |
1672 | * should use DVBv5 instead. | |
1673 | * However, in order to avoid breaking userspace API, limited backward | |
1674 | * compatibility support is provided. | |
1675 | * | |
1676 | * There are some delivery systems that are incompatible with DVBv3 calls. | |
1677 | * | |
1678 | * This routine should work fine for frontends that support just one delivery | |
1679 | * system. | |
1680 | * | |
1681 | * For frontends that support multiple frontends: | |
1682 | * 1) It defaults to use the first supported delivery system. There's an | |
1683 | * userspace application that allows changing it at runtime; | |
1684 | * | |
1685 | * 2) If the current delivery system is not compatible with DVBv3, it gets | |
1686 | * the first one that it is compatible. | |
1687 | * | |
1688 | * NOTE: in order for this to work with applications like Kaffeine that | |
1689 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to | |
1690 | * DVB-S, drivers that support both DVB-S and DVB-S2 should have the | |
1691 | * SYS_DVBS entry before the SYS_DVBS2, otherwise it won't switch back | |
1692 | * to DVB-S. | |
1693 | */ | |
be431b16 MCC |
1694 | static int dvbv3_set_delivery_system(struct dvb_frontend *fe) |
1695 | { | |
1696 | int ncaps; | |
be431b16 MCC |
1697 | u32 delsys = SYS_UNDEFINED; |
1698 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
be431b16 MCC |
1699 | |
1700 | /* If not set yet, defaults to the first supported delivery system */ | |
1701 | if (c->delivery_system == SYS_UNDEFINED) | |
1702 | c->delivery_system = fe->ops.delsys[0]; | |
1703 | ||
be431b16 MCC |
1704 | /* |
1705 | * Trivial case: just use the current one, if it already a DVBv3 | |
1706 | * delivery system | |
1707 | */ | |
1708 | if (is_dvbv3_delsys(c->delivery_system)) { | |
1709 | dev_dbg(fe->dvb->device, | |
1710 | "%s: Using delivery system to %d\n", | |
1711 | __func__, c->delivery_system); | |
1712 | return 0; | |
1713 | } | |
1714 | ||
be431b16 | 1715 | /* |
52dee392 MCC |
1716 | * Seek for the first delivery system that it is compatible with a |
1717 | * DVBv3 standard | |
be431b16 MCC |
1718 | */ |
1719 | ncaps = 0; | |
0123f29c | 1720 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
52dee392 MCC |
1721 | if (dvbv3_type(fe->ops.delsys[ncaps]) != DVBV3_UNKNOWN) { |
1722 | delsys = fe->ops.delsys[ncaps]; | |
be431b16 MCC |
1723 | break; |
1724 | } | |
1725 | ncaps++; | |
1726 | } | |
1727 | if (delsys == SYS_UNDEFINED) { | |
52dee392 MCC |
1728 | dev_dbg(fe->dvb->device, |
1729 | "%s: Couldn't find a delivery system that works with FE_SET_FRONTEND\n", | |
1730 | __func__); | |
1731 | return -EINVAL; | |
be431b16 | 1732 | } |
52dee392 | 1733 | return emulate_delivery_system(fe, delsys); |
be431b16 MCC |
1734 | } |
1735 | ||
072ce0c5 MCC |
1736 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1737 | struct dtv_property *tvp, | |
072ce0c5 | 1738 | struct file *file) |
6b73eeaf ST |
1739 | { |
1740 | int r = 0; | |
50727719 | 1741 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1742 | |
bfbf2dae | 1743 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1744 | if (fe->ops.set_property) { |
bfbf2dae | 1745 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1746 | if (r < 0) |
1747 | return r; | |
1748 | } | |
bfbf2dae | 1749 | |
c29ebb64 MCC |
1750 | dtv_property_dump(fe, true, tvp); |
1751 | ||
6b73eeaf | 1752 | switch(tvp->cmd) { |
e7fee0f3 | 1753 | case DTV_CLEAR: |
5bfaadde MCC |
1754 | /* |
1755 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1756 | * not effect hardware. |
1757 | */ | |
b6e760f3 | 1758 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1759 | break; |
e7fee0f3 | 1760 | case DTV_TUNE: |
6b73eeaf | 1761 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1762 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1763 | * ioctl. | |
6b73eeaf | 1764 | */ |
50727719 | 1765 | c->state = tvp->cmd; |
36bdbc3f AP |
1766 | dev_dbg(fe->dvb->device, "%s: Finalised property cache\n", |
1767 | __func__); | |
d5748f10 | 1768 | |
5bfaadde | 1769 | r = dtv_set_frontend(fe); |
6b73eeaf | 1770 | break; |
363429a0 | 1771 | case DTV_FREQUENCY: |
50727719 | 1772 | c->frequency = tvp->u.data; |
6b73eeaf | 1773 | break; |
363429a0 | 1774 | case DTV_MODULATION: |
50727719 | 1775 | c->modulation = tvp->u.data; |
6b73eeaf | 1776 | break; |
75b7f943 | 1777 | case DTV_BANDWIDTH_HZ: |
50727719 | 1778 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1779 | break; |
363429a0 | 1780 | case DTV_INVERSION: |
50727719 | 1781 | c->inversion = tvp->u.data; |
6b73eeaf | 1782 | break; |
363429a0 | 1783 | case DTV_SYMBOL_RATE: |
50727719 | 1784 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1785 | break; |
363429a0 | 1786 | case DTV_INNER_FEC: |
50727719 | 1787 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1788 | break; |
363429a0 | 1789 | case DTV_PILOT: |
50727719 | 1790 | c->pilot = tvp->u.data; |
6b73eeaf | 1791 | break; |
363429a0 | 1792 | case DTV_ROLLOFF: |
50727719 | 1793 | c->rolloff = tvp->u.data; |
6b73eeaf | 1794 | break; |
363429a0 | 1795 | case DTV_DELIVERY_SYSTEM: |
be431b16 | 1796 | r = dvbv5_set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1797 | break; |
363429a0 | 1798 | case DTV_VOLTAGE: |
50727719 | 1799 | c->voltage = tvp->u.data; |
16ef8def | 1800 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1801 | (void *)c->voltage); |
13c97bf5 | 1802 | break; |
363429a0 | 1803 | case DTV_TONE: |
50727719 | 1804 | c->sectone = tvp->u.data; |
16ef8def | 1805 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1806 | (void *)c->sectone); |
13c97bf5 | 1807 | break; |
a4de91be | 1808 | case DTV_CODE_RATE_HP: |
50727719 | 1809 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1810 | break; |
1811 | case DTV_CODE_RATE_LP: | |
50727719 | 1812 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1813 | break; |
b87625f0 | 1814 | case DTV_GUARD_INTERVAL: |
50727719 | 1815 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1816 | break; |
1817 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1818 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1819 | break; |
ef526f42 | 1820 | case DTV_HIERARCHY: |
50727719 | 1821 | c->hierarchy = tvp->u.data; |
ef526f42 | 1822 | break; |
224b6642 AP |
1823 | case DTV_INTERLEAVING: |
1824 | c->interleaving = tvp->u.data; | |
1825 | break; | |
b6e760f3 PB |
1826 | |
1827 | /* ISDB-T Support here */ | |
1828 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1829 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1830 | break; |
1831 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1832 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1833 | break; |
1834 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1835 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1836 | break; |
1837 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1838 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1839 | break; |
1840 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1841 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1842 | break; |
e7b7949a | 1843 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1844 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1845 | break; |
b6e760f3 | 1846 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1847 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1848 | break; |
1849 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1850 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1851 | break; |
1852 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1853 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1854 | break; |
1855 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1856 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1857 | break; |
1858 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1859 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1860 | break; |
1861 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1862 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1863 | break; |
1864 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1865 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1866 | break; |
1867 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1868 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1869 | break; |
1870 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1871 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1872 | break; |
1873 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1874 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1875 | break; |
1876 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1877 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1878 | break; |
1879 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1880 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1881 | break; |
287cefd0 EP |
1882 | |
1883 | /* Multistream support */ | |
1884 | case DTV_STREAM_ID: | |
1885 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1886 | c->stream_id = tvp->u.data; | |
98293ef3 | 1887 | break; |
ca689488 MK |
1888 | |
1889 | /* ATSC-MH */ | |
1890 | case DTV_ATSCMH_PARADE_ID: | |
1891 | fe->dtv_property_cache.atscmh_parade_id = tvp->u.data; | |
1892 | break; | |
1893 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1894 | fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; | |
1895 | break; | |
1896 | ||
33eebec5 AP |
1897 | case DTV_LNA: |
1898 | c->lna = tvp->u.data; | |
1899 | if (fe->ops.set_lna) | |
1900 | r = fe->ops.set_lna(fe); | |
e6876692 MCC |
1901 | if (r < 0) |
1902 | c->lna = LNA_AUTO; | |
33eebec5 AP |
1903 | break; |
1904 | ||
363429a0 | 1905 | default: |
aff8ab5c | 1906 | return -EINVAL; |
6b73eeaf ST |
1907 | } |
1908 | ||
13c97bf5 | 1909 | return r; |
6b73eeaf ST |
1910 | } |
1911 | ||
16ef8def | 1912 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1913 | unsigned int cmd, void *parg) |
1914 | { | |
1915 | struct dvb_device *dvbdev = file->private_data; | |
1916 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1917 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1918 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac897586 | 1919 | int err = -EOPNOTSUPP; |
1da177e4 | 1920 | |
36bdbc3f | 1921 | dev_dbg(fe->dvb->device, "%s: (%d)\n", __func__, _IOC_NR(cmd)); |
6ae23224 JL |
1922 | if (down_interruptible(&fepriv->sem)) |
1923 | return -ERESTARTSYS; | |
1924 | ||
18ed2860 | 1925 | if (fe->exit != DVB_FE_NO_EXIT) { |
6ae23224 | 1926 | up(&fepriv->sem); |
1da177e4 | 1927 | return -ENODEV; |
6ae23224 | 1928 | } |
1da177e4 LT |
1929 | |
1930 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1931 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
6ae23224 JL |
1932 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) { |
1933 | up(&fepriv->sem); | |
1da177e4 | 1934 | return -EPERM; |
6ae23224 | 1935 | } |
1da177e4 | 1936 | |
13c97bf5 | 1937 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1938 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1939 | else { |
50727719 | 1940 | c->state = DTV_UNDEFINED; |
16ef8def | 1941 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1942 | } |
13c97bf5 ST |
1943 | |
1944 | up(&fepriv->sem); | |
1945 | return err; | |
1946 | } | |
1947 | ||
16ef8def | 1948 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1949 | unsigned int cmd, void *parg) |
1950 | { | |
1951 | struct dvb_device *dvbdev = file->private_data; | |
1952 | struct dvb_frontend *fe = dvbdev->priv; | |
51dcb19a | 1953 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
50727719 | 1954 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1955 | int err = 0; |
e7fee0f3 | 1956 | |
71d1b2be | 1957 | struct dtv_properties *tvps = parg; |
e7fee0f3 ST |
1958 | struct dtv_property *tvp = NULL; |
1959 | int i; | |
13c97bf5 | 1960 | |
36bdbc3f | 1961 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
13c97bf5 | 1962 | |
71d1b2be | 1963 | if (cmd == FE_SET_PROPERTY) { |
36bdbc3f AP |
1964 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1965 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1966 | |
1967 | /* Put an arbitrary limit on the number of messages that can | |
1968 | * be sent at once */ | |
6068f506 | 1969 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1970 | return -EINVAL; |
1971 | ||
fb660928 ME |
1972 | tvp = memdup_user(tvps->props, tvps->num * sizeof(*tvp)); |
1973 | if (IS_ERR(tvp)) | |
1974 | return PTR_ERR(tvp); | |
e7fee0f3 | 1975 | |
d48cb402 | 1976 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1977 | err = dtv_property_process_set(fe, tvp + i, file); |
1978 | if (err < 0) | |
1979 | goto out; | |
1980 | (tvp + i)->result = err; | |
d48cb402 | 1981 | } |
e7fee0f3 | 1982 | |
50727719 | 1983 | if (c->state == DTV_TUNE) |
36bdbc3f | 1984 | dev_dbg(fe->dvb->device, "%s: Property cache is full, tuning\n", __func__); |
bfbf2dae | 1985 | |
71d1b2be | 1986 | } else if (cmd == FE_GET_PROPERTY) { |
bb31d238 MCC |
1987 | struct dtv_frontend_properties getp = fe->dtv_property_cache; |
1988 | ||
36bdbc3f AP |
1989 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1990 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1991 | |
1992 | /* Put an arbitrary limit on the number of messages that can | |
1993 | * be sent at once */ | |
6068f506 | 1994 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1995 | return -EINVAL; |
1996 | ||
fb660928 ME |
1997 | tvp = memdup_user(tvps->props, tvps->num * sizeof(*tvp)); |
1998 | if (IS_ERR(tvp)) | |
1999 | return PTR_ERR(tvp); | |
363429a0 | 2000 | |
a689e365 | 2001 | /* |
bb31d238 MCC |
2002 | * Let's use our own copy of property cache, in order to |
2003 | * avoid mangling with DTV zigzag logic, as drivers might | |
2004 | * return crap, if they don't check if the data is available | |
2005 | * before updating the properties cache. | |
a689e365 | 2006 | */ |
51dcb19a | 2007 | if (fepriv->state != FESTATE_IDLE) { |
bb31d238 | 2008 | err = dtv_get_frontend(fe, &getp, NULL); |
51dcb19a MCC |
2009 | if (err < 0) |
2010 | goto out; | |
2011 | } | |
d48cb402 | 2012 | for (i = 0; i < tvps->num; i++) { |
bb31d238 | 2013 | err = dtv_property_process_get(fe, &getp, tvp + i, file); |
aff8ab5c AO |
2014 | if (err < 0) |
2015 | goto out; | |
2016 | (tvp + i)->result = err; | |
d48cb402 | 2017 | } |
363429a0 | 2018 | |
71d1b2be MCC |
2019 | if (copy_to_user((void __user *)tvps->props, tvp, |
2020 | tvps->num * sizeof(struct dtv_property))) { | |
363429a0 ST |
2021 | err = -EFAULT; |
2022 | goto out; | |
2023 | } | |
2024 | ||
363429a0 | 2025 | } else |
ac897586 | 2026 | err = -EOPNOTSUPP; |
363429a0 | 2027 | |
e7fee0f3 ST |
2028 | out: |
2029 | kfree(tvp); | |
13c97bf5 ST |
2030 | return err; |
2031 | } | |
2032 | ||
5bfaadde | 2033 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 2034 | { |
9682cea2 MCC |
2035 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
2036 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
2037 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 2038 | u32 rolloff = 0; |
9682cea2 | 2039 | |
5bfaadde MCC |
2040 | if (dvb_frontend_check_parameters(fe) < 0) |
2041 | return -EINVAL; | |
9682cea2 | 2042 | |
556a0442 CR |
2043 | /* |
2044 | * Initialize output parameters to match the values given by | |
2045 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
2046 | * with status = 0, which copies output parameters to userspace. | |
2047 | */ | |
2ea9a08d | 2048 | dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out); |
556a0442 | 2049 | |
5bfaadde MCC |
2050 | /* |
2051 | * Be sure that the bandwidth will be filled for all | |
2052 | * non-satellite systems, as tuners need to know what | |
2053 | * low pass/Nyquist half filter should be applied, in | |
2054 | * order to avoid inter-channel noise. | |
2055 | * | |
2056 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
2057 | * ATSC and DVB-C don't set, so, the core should fill it. | |
2058 | * | |
2059 | * On DVB-C Annex A and C, the bandwidth is a function of | |
2060 | * the roll-off and symbol rate. Annex B defines different | |
2061 | * roll-off factors depending on the modulation. Fortunately, | |
2062 | * Annex B is only used with 6MHz, so there's no need to | |
2063 | * calculate it. | |
2064 | * | |
2065 | * While not officially supported, a side effect of handling it at | |
2066 | * the cache level is that a program could retrieve the bandwidth | |
2067 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
2068 | */ | |
2069 | switch (c->delivery_system) { | |
2070 | case SYS_ATSC: | |
2071 | case SYS_DVBC_ANNEX_B: | |
2072 | c->bandwidth_hz = 6000000; | |
2073 | break; | |
2074 | case SYS_DVBC_ANNEX_A: | |
2075 | rolloff = 115; | |
2076 | break; | |
2077 | case SYS_DVBC_ANNEX_C: | |
2078 | rolloff = 113; | |
2079 | break; | |
c623ed63 MCC |
2080 | case SYS_DVBS: |
2081 | case SYS_TURBO: | |
8e281faf | 2082 | case SYS_ISDBS: |
c623ed63 MCC |
2083 | rolloff = 135; |
2084 | break; | |
2085 | case SYS_DVBS2: | |
2086 | switch (c->rolloff) { | |
2087 | case ROLLOFF_20: | |
2088 | rolloff = 120; | |
2089 | break; | |
2090 | case ROLLOFF_25: | |
2091 | rolloff = 125; | |
2092 | break; | |
2093 | default: | |
2094 | case ROLLOFF_35: | |
2095 | rolloff = 135; | |
2096 | } | |
2097 | break; | |
5bfaadde MCC |
2098 | default: |
2099 | break; | |
2100 | } | |
2101 | if (rolloff) | |
2a80f296 | 2102 | c->bandwidth_hz = mult_frac(c->symbol_rate, rolloff, 100); |
9682cea2 MCC |
2103 | |
2104 | /* force auto frequency inversion if requested */ | |
5bfaadde | 2105 | if (dvb_force_auto_inversion) |
9682cea2 | 2106 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
2107 | |
2108 | /* | |
2109 | * without hierarchical coding code_rate_LP is irrelevant, | |
2110 | * so we tolerate the otherwise invalid FEC_NONE setting | |
2111 | */ | |
2112 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
2113 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
2114 | |
2115 | /* get frontend-specific tuning settings */ | |
5bfaadde | 2116 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
2117 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
2118 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
2119 | fepriv->max_drift = fetunesettings.max_drift; | |
2120 | fepriv->step_size = fetunesettings.step_size; | |
2121 | } else { | |
2122 | /* default values */ | |
5bfaadde | 2123 | switch (c->delivery_system) { |
910a5f2e MCC |
2124 | case SYS_DVBS: |
2125 | case SYS_DVBS2: | |
2126 | case SYS_ISDBS: | |
2127 | case SYS_TURBO: | |
5bfaadde MCC |
2128 | case SYS_DVBC_ANNEX_A: |
2129 | case SYS_DVBC_ANNEX_C: | |
2130 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
2131 | fepriv->step_size = c->symbol_rate / 16000; |
2132 | fepriv->max_drift = c->symbol_rate / 2000; | |
2133 | break; | |
5bfaadde MCC |
2134 | case SYS_DVBT: |
2135 | case SYS_DVBT2: | |
2136 | case SYS_ISDBT: | |
224b6642 | 2137 | case SYS_DTMB: |
5bfaadde | 2138 | fepriv->min_delay = HZ / 20; |
9682cea2 MCC |
2139 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
2140 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
2141 | break; | |
5bfaadde MCC |
2142 | default: |
2143 | /* | |
2144 | * FIXME: This sounds wrong! if freqency_stepsize is | |
2145 | * defined by the frontend, why not use it??? | |
2146 | */ | |
2147 | fepriv->min_delay = HZ / 20; | |
2148 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
2149 | fepriv->max_drift = 0; |
2150 | break; | |
2151 | } | |
2152 | } | |
2153 | if (dvb_override_tune_delay > 0) | |
2154 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
2155 | ||
2156 | fepriv->state = FESTATE_RETUNE; | |
2157 | ||
2158 | /* Request the search algorithm to search */ | |
2159 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
2160 | ||
2161 | dvb_frontend_clear_events(fe); | |
2162 | dvb_frontend_add_event(fe, 0); | |
2163 | dvb_frontend_wakeup(fe); | |
2164 | fepriv->status = 0; | |
2165 | ||
2166 | return 0; | |
2167 | } | |
2168 | ||
2169 | ||
16ef8def | 2170 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
2171 | unsigned int cmd, void *parg) |
2172 | { | |
2173 | struct dvb_device *dvbdev = file->private_data; | |
2174 | struct dvb_frontend *fe = dvbdev->priv; | |
2175 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 2176 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
ac897586 | 2177 | int err = -EOPNOTSUPP; |
13c97bf5 | 2178 | |
1da177e4 LT |
2179 | switch (cmd) { |
2180 | case FE_GET_INFO: { | |
0c53c70f | 2181 | struct dvb_frontend_info* info = parg; |
9474c5e6 | 2182 | |
dea74869 | 2183 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 2184 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 2185 | |
5bfaadde MCC |
2186 | /* |
2187 | * Associate the 4 delivery systems supported by DVBv3 | |
2188 | * API with their DVBv5 counterpart. For the other standards, | |
2189 | * use the closest type, assuming that it would hopefully | |
2190 | * work with a DVBv3 application. | |
2191 | * It should be noticed that, on multi-frontend devices with | |
2192 | * different types (terrestrial and cable, for example), | |
2193 | * a pure DVBv3 application won't be able to use all delivery | |
2194 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
2195 | * system should be enough for making it work. | |
2196 | */ | |
2197 | switch (dvbv3_type(c->delivery_system)) { | |
2198 | case DVBV3_QPSK: | |
9474c5e6 | 2199 | info->type = FE_QPSK; |
5bfaadde MCC |
2200 | break; |
2201 | case DVBV3_ATSC: | |
9474c5e6 | 2202 | info->type = FE_ATSC; |
5bfaadde MCC |
2203 | break; |
2204 | case DVBV3_QAM: | |
9474c5e6 | 2205 | info->type = FE_QAM; |
5bfaadde MCC |
2206 | break; |
2207 | case DVBV3_OFDM: | |
9474c5e6 | 2208 | info->type = FE_OFDM; |
5bfaadde MCC |
2209 | break; |
2210 | default: | |
36bdbc3f AP |
2211 | dev_err(fe->dvb->device, |
2212 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
2213 | __func__, c->delivery_system); | |
5bfaadde MCC |
2214 | fe->ops.info.type = FE_OFDM; |
2215 | } | |
36bdbc3f AP |
2216 | dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n", |
2217 | __func__, c->delivery_system, fe->ops.info.type); | |
5bfaadde | 2218 | |
c9d57de6 MP |
2219 | /* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */ |
2220 | if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) | |
2221 | info->caps |= FE_CAN_INVERSION_AUTO; | |
1da177e4 LT |
2222 | err = 0; |
2223 | break; | |
2224 | } | |
2225 | ||
6757ccc5 | 2226 | case FE_READ_STATUS: { |
0df289a2 | 2227 | enum fe_status *status = parg; |
6757ccc5 | 2228 | |
25985edc | 2229 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2230 | * that user get signal state from previous tuning */ |
01886255 JG |
2231 | if (fepriv->state == FESTATE_RETUNE || |
2232 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2233 | err=0; |
2234 | *status = 0; | |
2235 | break; | |
2236 | } | |
2237 | ||
dea74869 PB |
2238 | if (fe->ops.read_status) |
2239 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2240 | break; |
6757ccc5 | 2241 | } |
48caa6f1 | 2242 | |
1da177e4 | 2243 | case FE_READ_BER: |
48caa6f1 AP |
2244 | if (fe->ops.read_ber) { |
2245 | if (fepriv->thread) | |
2246 | err = fe->ops.read_ber(fe, (__u32 *) parg); | |
2247 | else | |
2248 | err = -EAGAIN; | |
2249 | } | |
1da177e4 LT |
2250 | break; |
2251 | ||
2252 | case FE_READ_SIGNAL_STRENGTH: | |
48caa6f1 AP |
2253 | if (fe->ops.read_signal_strength) { |
2254 | if (fepriv->thread) | |
2255 | err = fe->ops.read_signal_strength(fe, (__u16 *) parg); | |
2256 | else | |
2257 | err = -EAGAIN; | |
2258 | } | |
1da177e4 LT |
2259 | break; |
2260 | ||
2261 | case FE_READ_SNR: | |
48caa6f1 AP |
2262 | if (fe->ops.read_snr) { |
2263 | if (fepriv->thread) | |
2264 | err = fe->ops.read_snr(fe, (__u16 *) parg); | |
2265 | else | |
2266 | err = -EAGAIN; | |
2267 | } | |
1da177e4 LT |
2268 | break; |
2269 | ||
2270 | case FE_READ_UNCORRECTED_BLOCKS: | |
48caa6f1 AP |
2271 | if (fe->ops.read_ucblocks) { |
2272 | if (fepriv->thread) | |
2273 | err = fe->ops.read_ucblocks(fe, (__u32 *) parg); | |
2274 | else | |
2275 | err = -EAGAIN; | |
2276 | } | |
1da177e4 LT |
2277 | break; |
2278 | ||
1da177e4 | 2279 | case FE_DISEQC_RESET_OVERLOAD: |
dea74869 PB |
2280 | if (fe->ops.diseqc_reset_overload) { |
2281 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2282 | fepriv->state = FESTATE_DISEQC; |
2283 | fepriv->status = 0; | |
2284 | } | |
2285 | break; | |
2286 | ||
2287 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 | 2288 | if (fe->ops.diseqc_send_master_cmd) { |
8d7e5063 DC |
2289 | struct dvb_diseqc_master_cmd *cmd = parg; |
2290 | ||
2291 | if (cmd->msg_len > sizeof(cmd->msg)) { | |
2292 | err = -EINVAL; | |
2293 | break; | |
2294 | } | |
2295 | err = fe->ops.diseqc_send_master_cmd(fe, cmd); | |
1da177e4 LT |
2296 | fepriv->state = FESTATE_DISEQC; |
2297 | fepriv->status = 0; | |
2298 | } | |
2299 | break; | |
2300 | ||
2301 | case FE_DISEQC_SEND_BURST: | |
dea74869 | 2302 | if (fe->ops.diseqc_send_burst) { |
0df289a2 MCC |
2303 | err = fe->ops.diseqc_send_burst(fe, |
2304 | (enum fe_sec_mini_cmd)parg); | |
1da177e4 LT |
2305 | fepriv->state = FESTATE_DISEQC; |
2306 | fepriv->status = 0; | |
2307 | } | |
2308 | break; | |
2309 | ||
2310 | case FE_SET_TONE: | |
dea74869 | 2311 | if (fe->ops.set_tone) { |
0df289a2 MCC |
2312 | err = fe->ops.set_tone(fe, |
2313 | (enum fe_sec_tone_mode)parg); | |
2314 | fepriv->tone = (enum fe_sec_tone_mode)parg; | |
1da177e4 LT |
2315 | fepriv->state = FESTATE_DISEQC; |
2316 | fepriv->status = 0; | |
2317 | } | |
2318 | break; | |
2319 | ||
2320 | case FE_SET_VOLTAGE: | |
dea74869 | 2321 | if (fe->ops.set_voltage) { |
0df289a2 MCC |
2322 | err = fe->ops.set_voltage(fe, |
2323 | (enum fe_sec_voltage)parg); | |
2324 | fepriv->voltage = (enum fe_sec_voltage)parg; | |
1da177e4 LT |
2325 | fepriv->state = FESTATE_DISEQC; |
2326 | fepriv->status = 0; | |
2327 | } | |
2328 | break; | |
2329 | ||
2330 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 | 2331 | if (fe->ops.dishnetwork_send_legacy_command) { |
0df289a2 MCC |
2332 | err = fe->ops.dishnetwork_send_legacy_command(fe, |
2333 | (unsigned long)parg); | |
1da177e4 LT |
2334 | fepriv->state = FESTATE_DISEQC; |
2335 | fepriv->status = 0; | |
dea74869 | 2336 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2337 | /* |
2338 | * NOTE: This is a fallback condition. Some frontends | |
2339 | * (stv0299 for instance) take longer than 8msec to | |
2340 | * respond to a set_voltage command. Those switches | |
2341 | * need custom routines to switch properly. For all | |
2030c032 | 2342 | * other frontends, the following should work ok. |
83b75b04 N |
2343 | * Dish network legacy switches (as used by Dish500) |
2344 | * are controlled by sending 9-bit command words | |
2345 | * spaced 8msec apart. | |
25985edc | 2346 | * the actual command word is switch/port dependent |
83b75b04 N |
2347 | * so it is up to the userspace application to send |
2348 | * the right command. | |
2349 | * The command must always start with a '0' after | |
2350 | * initialization, so parg is 8 bits and does not | |
2351 | * include the initialization or start bit | |
2352 | */ | |
c6eb8eaf | 2353 | unsigned long swcmd = ((unsigned long) parg) << 1; |
9056a23b TR |
2354 | ktime_t nexttime; |
2355 | ktime_t tv[10]; | |
83b75b04 N |
2356 | int i; |
2357 | u8 last = 1; | |
2358 | if (dvb_frontend_debug) | |
c6eb8eaf | 2359 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
6b3f9998 | 2360 | nexttime = ktime_get_boottime(); |
83b75b04 | 2361 | if (dvb_frontend_debug) |
b9b1b3a8 | 2362 | tv[0] = nexttime; |
83b75b04 N |
2363 | /* before sending a command, initialize by sending |
2364 | * a 32ms 18V to the switch | |
2365 | */ | |
dea74869 | 2366 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2367 | dvb_frontend_sleep_until(&nexttime, 32000); |
2368 | ||
2369 | for (i = 0; i < 9; i++) { | |
2370 | if (dvb_frontend_debug) | |
6b3f9998 | 2371 | tv[i+1] = ktime_get_boottime(); |
c6eb8eaf | 2372 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2373 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2374 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2375 | last = (last) ? 0 : 1; |
2376 | } | |
c6eb8eaf | 2377 | swcmd = swcmd >> 1; |
83b75b04 N |
2378 | if (i != 8) |
2379 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2380 | } | |
2381 | if (dvb_frontend_debug) { | |
2382 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 2383 | __func__, fe->dvb->num); |
83b75b04 | 2384 | for (i = 1; i < 10; i++) |
9056a23b TR |
2385 | printk("%d: %d\n", i, |
2386 | (int) ktime_us_delta(tv[i], tv[i-1])); | |
83b75b04 N |
2387 | } |
2388 | err = 0; | |
2389 | fepriv->state = FESTATE_DISEQC; | |
2390 | fepriv->status = 0; | |
1da177e4 LT |
2391 | } |
2392 | break; | |
2393 | ||
2394 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2395 | if (fe->ops.diseqc_recv_slave_reply) |
2396 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2397 | break; |
2398 | ||
2399 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2400 | if (fe->ops.enable_high_lnb_voltage) |
2401 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2402 | break; |
2403 | ||
9682cea2 | 2404 | case FE_SET_FRONTEND: |
be431b16 | 2405 | err = dvbv3_set_delivery_system(fe); |
04be0f76 MCC |
2406 | if (err) |
2407 | break; | |
2408 | ||
e399ce77 | 2409 | err = dtv_property_cache_sync(fe, c, parg); |
5bfaadde MCC |
2410 | if (err) |
2411 | break; | |
2412 | err = dtv_set_frontend(fe); | |
1da177e4 | 2413 | break; |
1da177e4 LT |
2414 | case FE_GET_EVENT: |
2415 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2416 | break; | |
2417 | ||
bb31d238 MCC |
2418 | case FE_GET_FRONTEND: { |
2419 | struct dtv_frontend_properties getp = fe->dtv_property_cache; | |
36cb557a | 2420 | |
bb31d238 MCC |
2421 | /* |
2422 | * Let's use our own copy of property cache, in order to | |
2423 | * avoid mangling with DTV zigzag logic, as drivers might | |
2424 | * return crap, if they don't check if the data is available | |
2425 | * before updating the properties cache. | |
2426 | */ | |
2427 | err = dtv_get_frontend(fe, &getp, parg); | |
2428 | break; | |
2429 | } | |
36cb557a | 2430 | case FE_SET_FRONTEND_TUNE_MODE: |
e18828e4 | 2431 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2432 | err = 0; |
36cb557a | 2433 | break; |
c2c1b415 | 2434 | } |
1da177e4 | 2435 | |
1da177e4 LT |
2436 | return err; |
2437 | } | |
2438 | ||
6b73eeaf | 2439 | |
1da177e4 LT |
2440 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2441 | { | |
2442 | struct dvb_device *dvbdev = file->private_data; | |
2443 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2444 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2445 | |
36bdbc3f | 2446 | dev_dbg_ratelimited(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
2447 | |
2448 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2449 | ||
2450 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2451 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2452 | ||
2453 | return 0; | |
2454 | } | |
2455 | ||
2456 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2457 | { | |
2458 | struct dvb_device *dvbdev = file->private_data; | |
2459 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2460 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2461 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2462 | int ret; |
2463 | ||
36bdbc3f | 2464 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
18ed2860 | 2465 | if (fe->exit == DVB_FE_DEVICE_REMOVED) |
e36309f5 | 2466 | return -ENODEV; |
1da177e4 | 2467 | |
59b1842d DB |
2468 | if (adapter->mfe_shared) { |
2469 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2470 | |
2471 | if (adapter->mfe_dvbdev == NULL) | |
2472 | adapter->mfe_dvbdev = dvbdev; | |
2473 | ||
2474 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2475 | struct dvb_device | |
2476 | *mfedev = adapter->mfe_dvbdev; | |
2477 | struct dvb_frontend | |
2478 | *mfe = mfedev->priv; | |
2479 | struct dvb_frontend_private | |
2480 | *mfepriv = mfe->frontend_priv; | |
2481 | int mferetry = (dvb_mfe_wait_time << 1); | |
2482 | ||
2483 | mutex_unlock (&adapter->mfe_lock); | |
2484 | while (mferetry-- && (mfedev->users != -1 || | |
2485 | mfepriv->thread != NULL)) { | |
2486 | if(msleep_interruptible(500)) { | |
2487 | if(signal_pending(current)) | |
2488 | return -EINTR; | |
59b1842d | 2489 | } |
6594690b DB |
2490 | } |
2491 | ||
2492 | mutex_lock (&adapter->mfe_lock); | |
2493 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2494 | mfedev = adapter->mfe_dvbdev; |
2495 | mfe = mfedev->priv; | |
2496 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2497 | if (mfedev->users != -1 || |
2498 | mfepriv->thread != NULL) { | |
2499 | mutex_unlock (&adapter->mfe_lock); | |
2500 | return -EBUSY; | |
59b1842d | 2501 | } |
6594690b | 2502 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2503 | } |
59b1842d DB |
2504 | } |
2505 | } | |
2506 | ||
48136e1e OE |
2507 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2508 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2509 | goto err0; |
2d196931 DH |
2510 | |
2511 | /* If we took control of the bus, we need to force | |
2512 | reinitialization. This is because many ts_bus_ctrl() | |
2513 | functions strobe the RESET pin on the demod, and if the | |
2514 | frontend thread already exists then the dvb_init() routine | |
2515 | won't get called (which is what usually does initial | |
2516 | register configuration). */ | |
2517 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2518 | } |
2519 | ||
48136e1e OE |
2520 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2521 | goto err1; | |
04c56d0e | 2522 | |
48136e1e | 2523 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2524 | /* normal tune mode when opened R/W */ |
2525 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2526 | fepriv->tone = -1; | |
2527 | fepriv->voltage = -1; | |
2528 | ||
68ff5767 SK |
2529 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
2530 | if (fe->dvb->mdev && fe->dvb->mdev->enable_source) { | |
2531 | ret = fe->dvb->mdev->enable_source(dvbdev->entity, | |
2532 | &fepriv->pipe); | |
2533 | if (ret) { | |
2534 | dev_err(fe->dvb->device, | |
2535 | "Tuner is busy. Error %d\n", ret); | |
2536 | goto err2; | |
2537 | } | |
2538 | } | |
2539 | #endif | |
1da177e4 LT |
2540 | ret = dvb_frontend_start (fe); |
2541 | if (ret) | |
68ff5767 | 2542 | goto err3; |
1da177e4 LT |
2543 | |
2544 | /* empty event queue */ | |
2545 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2546 | } | |
2547 | ||
fe35637b MK |
2548 | dvb_frontend_private_get(fepriv); |
2549 | ||
59b1842d DB |
2550 | if (adapter->mfe_shared) |
2551 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2552 | return ret; |
48136e1e | 2553 | |
68ff5767 SK |
2554 | err3: |
2555 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB | |
2556 | if (fe->dvb->mdev && fe->dvb->mdev->disable_source) | |
2557 | fe->dvb->mdev->disable_source(dvbdev->entity); | |
48136e1e | 2558 | err2: |
68ff5767 | 2559 | #endif |
48136e1e OE |
2560 | dvb_generic_release(inode, file); |
2561 | err1: | |
2562 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2563 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2564 | err0: |
2565 | if (adapter->mfe_shared) | |
2566 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2567 | return ret; |
1da177e4 LT |
2568 | } |
2569 | ||
2570 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2571 | { | |
2572 | struct dvb_device *dvbdev = file->private_data; | |
2573 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2574 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2575 | int ret; |
1da177e4 | 2576 | |
36bdbc3f | 2577 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2578 | |
b9d5efcc | 2579 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2580 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2581 | mb(); |
2582 | } | |
1da177e4 | 2583 | |
ca5be9cd MR |
2584 | ret = dvb_generic_release (inode, file); |
2585 | ||
48136e1e | 2586 | if (dvbdev->users == -1) { |
b9d5efcc | 2587 | wake_up(&fepriv->wait_queue); |
68ff5767 SK |
2588 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
2589 | if (fe->dvb->mdev && fe->dvb->mdev->disable_source) | |
2590 | fe->dvb->mdev->disable_source(dvbdev->entity); | |
2591 | #endif | |
18ed2860 | 2592 | if (fe->exit != DVB_FE_NO_EXIT) |
48136e1e | 2593 | wake_up(&dvbdev->wait_queue); |
48136e1e OE |
2594 | if (fe->ops.ts_bus_ctrl) |
2595 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2596 | } |
48136e1e | 2597 | |
fe35637b MK |
2598 | dvb_frontend_private_put(fepriv); |
2599 | ||
ca5be9cd | 2600 | return ret; |
1da177e4 LT |
2601 | } |
2602 | ||
784e29d2 | 2603 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2604 | .owner = THIS_MODULE, |
16ef8def | 2605 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2606 | .poll = dvb_frontend_poll, |
2607 | .open = dvb_frontend_open, | |
6038f373 AB |
2608 | .release = dvb_frontend_release, |
2609 | .llseek = noop_llseek, | |
1da177e4 LT |
2610 | }; |
2611 | ||
06bae122 AP |
2612 | int dvb_frontend_suspend(struct dvb_frontend *fe) |
2613 | { | |
2614 | int ret = 0; | |
2615 | ||
2616 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2617 | fe->id); | |
2618 | ||
59d7889a MCC |
2619 | if (fe->ops.tuner_ops.suspend) |
2620 | ret = fe->ops.tuner_ops.suspend(fe); | |
2621 | else if (fe->ops.tuner_ops.sleep) | |
06bae122 AP |
2622 | ret = fe->ops.tuner_ops.sleep(fe); |
2623 | ||
2624 | if (fe->ops.sleep) | |
2625 | ret = fe->ops.sleep(fe); | |
2626 | ||
2627 | return ret; | |
2628 | } | |
2629 | EXPORT_SYMBOL(dvb_frontend_suspend); | |
2630 | ||
2631 | int dvb_frontend_resume(struct dvb_frontend *fe) | |
2632 | { | |
2633 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
2634 | int ret = 0; | |
2635 | ||
2636 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2637 | fe->id); | |
2638 | ||
87cd0fa8 | 2639 | fe->exit = DVB_FE_DEVICE_RESUME; |
06bae122 AP |
2640 | if (fe->ops.init) |
2641 | ret = fe->ops.init(fe); | |
2642 | ||
59d7889a MCC |
2643 | if (fe->ops.tuner_ops.resume) |
2644 | ret = fe->ops.tuner_ops.resume(fe); | |
2645 | else if (fe->ops.tuner_ops.init) | |
06bae122 AP |
2646 | ret = fe->ops.tuner_ops.init(fe); |
2647 | ||
3663b31b MCC |
2648 | if (fe->ops.set_tone && fepriv->tone != -1) |
2649 | fe->ops.set_tone(fe, fepriv->tone); | |
2650 | if (fe->ops.set_voltage && fepriv->voltage != -1) | |
2651 | fe->ops.set_voltage(fe, fepriv->voltage); | |
2652 | ||
87cd0fa8 | 2653 | fe->exit = DVB_FE_NO_EXIT; |
06bae122 AP |
2654 | fepriv->state = FESTATE_RETUNE; |
2655 | dvb_frontend_wakeup(fe); | |
2656 | ||
2657 | return ret; | |
2658 | } | |
2659 | EXPORT_SYMBOL(dvb_frontend_resume); | |
2660 | ||
1da177e4 LT |
2661 | int dvb_register_frontend(struct dvb_adapter* dvb, |
2662 | struct dvb_frontend* fe) | |
2663 | { | |
2664 | struct dvb_frontend_private *fepriv; | |
c1b31b1e | 2665 | const struct dvb_device dvbdev_template = { |
1da177e4 LT |
2666 | .users = ~0, |
2667 | .writers = 1, | |
2668 | .readers = (~0)-1, | |
2669 | .fops = &dvb_frontend_fops, | |
c1b31b1e MCC |
2670 | #if defined(CONFIG_MEDIA_CONTROLLER_DVB) |
2671 | .name = fe->ops.info.name, | |
2672 | #endif | |
1da177e4 LT |
2673 | .kernel_ioctl = dvb_frontend_ioctl |
2674 | }; | |
2675 | ||
36bdbc3f | 2676 | dev_dbg(dvb->device, "%s:\n", __func__); |
1da177e4 | 2677 | |
3593cab5 | 2678 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2679 | return -ERESTARTSYS; |
2680 | ||
7408187d | 2681 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2682 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2683 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2684 | return -ENOMEM; |
2685 | } | |
0c53c70f | 2686 | fepriv = fe->frontend_priv; |
1da177e4 | 2687 | |
fe35637b MK |
2688 | kref_init(&fepriv->refcount); |
2689 | ||
a0a4714c | 2690 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2691 | init_waitqueue_head (&fepriv->wait_queue); |
2692 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2693 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2694 | fe->dvb = dvb; |
2695 | fepriv->inversion = INVERSION_OFF; | |
2696 | ||
36bdbc3f AP |
2697 | dev_info(fe->dvb->device, |
2698 | "DVB: registering adapter %i frontend %i (%s)...\n", | |
2699 | fe->dvb->num, fe->id, fe->ops.info.name); | |
1da177e4 LT |
2700 | |
2701 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
df2f94e5 | 2702 | fe, DVB_DEVICE_FRONTEND, 0); |
1da177e4 | 2703 | |
5bfaadde MCC |
2704 | /* |
2705 | * Initialize the cache to the proper values according with the | |
2706 | * first supported delivery system (ops->delsys[0]) | |
2707 | */ | |
240ab508 | 2708 | |
be431b16 | 2709 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; |
5bfaadde MCC |
2710 | dvb_frontend_clear_cache(fe); |
2711 | ||
3593cab5 | 2712 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2713 | return 0; |
2714 | } | |
2715 | EXPORT_SYMBOL(dvb_register_frontend); | |
2716 | ||
2717 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2718 | { | |
0c53c70f | 2719 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
36bdbc3f | 2720 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2721 | |
57861b43 | 2722 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2723 | dvb_frontend_stop (fe); |
1da177e4 | 2724 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2725 | |
1da177e4 | 2726 | /* fe is invalid now */ |
3593cab5 | 2727 | mutex_unlock(&frontend_mutex); |
fe35637b | 2728 | dvb_frontend_private_put(fepriv); |
1da177e4 LT |
2729 | return 0; |
2730 | } | |
2731 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2732 | |
149ef72d | 2733 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2734 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2735 | { | |
2736 | void *ptr; | |
2737 | ||
2738 | if (fe->ops.release_sec) { | |
2739 | fe->ops.release_sec(fe); | |
4647f487 | 2740 | dvb_detach(fe->ops.release_sec); |
f52a838b AQ |
2741 | } |
2742 | if (fe->ops.tuner_ops.release) { | |
2743 | fe->ops.tuner_ops.release(fe); | |
4647f487 | 2744 | dvb_detach(fe->ops.tuner_ops.release); |
f52a838b | 2745 | } |
2426a27e MK |
2746 | if (fe->ops.analog_ops.release) { |
2747 | fe->ops.analog_ops.release(fe); | |
4647f487 | 2748 | dvb_detach(fe->ops.analog_ops.release); |
2426a27e | 2749 | } |
f52a838b AQ |
2750 | ptr = (void*)fe->ops.release; |
2751 | if (ptr) { | |
2752 | fe->ops.release(fe); | |
4647f487 | 2753 | dvb_detach(ptr); |
f52a838b AQ |
2754 | } |
2755 | } | |
2756 | #else | |
2757 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2758 | { | |
2759 | if (fe->ops.release_sec) | |
2760 | fe->ops.release_sec(fe); | |
2761 | if (fe->ops.tuner_ops.release) | |
2762 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2763 | if (fe->ops.analog_ops.release) |
2764 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2765 | if (fe->ops.release) |
2766 | fe->ops.release(fe); | |
2767 | } | |
2768 | #endif | |
2769 | EXPORT_SYMBOL(dvb_frontend_detach); |