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1da177e4 LT |
1 | /* |
2 | * dvb_frontend.c: DVB frontend tuning interface/thread | |
3 | * | |
4 | * | |
5 | * Copyright (C) 1999-2001 Ralph Metzler | |
6 | * Marcus Metzler | |
7 | * Holger Waechtler | |
8 | * for convergence integrated media GmbH | |
9 | * | |
10 | * Copyright (C) 2004 Andrew de Quincey (tuning thread cleanup) | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License | |
14 | * as published by the Free Software Foundation; either version 2 | |
15 | * of the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
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 | ||
28 | #include <linux/string.h> | |
29 | #include <linux/kernel.h> | |
30 | #include <linux/sched.h> | |
31 | #include <linux/wait.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/poll.h> | |
4c4cb1b1 | 34 | #include <linux/semaphore.h> |
1da177e4 | 35 | #include <linux/module.h> |
1da177e4 | 36 | #include <linux/list.h> |
7dfb7103 | 37 | #include <linux/freezer.h> |
cc89c229 | 38 | #include <linux/jiffies.h> |
8eec1429 | 39 | #include <linux/kthread.h> |
1da177e4 | 40 | #include <asm/processor.h> |
1da177e4 LT |
41 | |
42 | #include "dvb_frontend.h" | |
43 | #include "dvbdev.h" | |
eacf8d8d | 44 | #include <linux/dvb/version.h> |
1da177e4 LT |
45 | |
46 | static int dvb_frontend_debug; | |
849be2cd | 47 | static int dvb_shutdown_timeout; |
1da177e4 LT |
48 | static int dvb_force_auto_inversion; |
49 | static int dvb_override_tune_delay; | |
50 | static int dvb_powerdown_on_sleep = 1; | |
59b1842d | 51 | static int dvb_mfe_wait_time = 5; |
1da177e4 LT |
52 | |
53 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); | |
f4f009a7 | 54 | MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off)."); |
6baad3f0 | 55 | module_param(dvb_shutdown_timeout, int, 0644); |
1da177e4 | 56 | MODULE_PARM_DESC(dvb_shutdown_timeout, "wait <shutdown_timeout> seconds after close() before suspending hardware"); |
6baad3f0 | 57 | module_param(dvb_force_auto_inversion, int, 0644); |
1da177e4 | 58 | MODULE_PARM_DESC(dvb_force_auto_inversion, "0: normal (default), 1: INVERSION_AUTO forced always"); |
6baad3f0 | 59 | module_param(dvb_override_tune_delay, int, 0644); |
1da177e4 | 60 | MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt"); |
6baad3f0 | 61 | module_param(dvb_powerdown_on_sleep, int, 0644); |
a8558577 | 62 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
59b1842d DB |
63 | module_param(dvb_mfe_wait_time, int, 0644); |
64 | 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 LT |
65 | |
66 | #define dprintk if (dvb_frontend_debug) printk | |
67 | ||
68 | #define FESTATE_IDLE 1 | |
69 | #define FESTATE_RETUNE 2 | |
70 | #define FESTATE_TUNING_FAST 4 | |
71 | #define FESTATE_TUNING_SLOW 8 | |
72 | #define FESTATE_TUNED 16 | |
73 | #define FESTATE_ZIGZAG_FAST 32 | |
74 | #define FESTATE_ZIGZAG_SLOW 64 | |
75 | #define FESTATE_DISEQC 128 | |
01886255 | 76 | #define FESTATE_ERROR 256 |
1da177e4 LT |
77 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
78 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) | |
79 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) | |
80 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) | |
0249ef16 MA |
81 | |
82 | #define FE_ALGO_HW 1 | |
1da177e4 LT |
83 | /* |
84 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. | |
85 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. | |
86 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. | |
87 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. | |
88 | * FESTATE_TUNED. The frontend has successfully locked on. | |
89 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. | |
90 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. | |
91 | * FESTATE_DISEQC. A DISEQC command has just been issued. | |
92 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. | |
93 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. | |
94 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. | |
95 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. | |
96 | */ | |
97 | ||
3593cab5 | 98 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
99 | |
100 | struct dvb_frontend_private { | |
101 | ||
36cb557a | 102 | /* thread/frontend values */ |
1da177e4 LT |
103 | struct dvb_device *dvbdev; |
104 | struct dvb_frontend_parameters parameters; | |
105 | struct dvb_fe_events events; | |
106 | struct semaphore sem; | |
107 | struct list_head list_head; | |
108 | wait_queue_head_t wait_queue; | |
8eec1429 | 109 | struct task_struct *thread; |
1da177e4 | 110 | unsigned long release_jiffies; |
36cb557a AQ |
111 | unsigned int exit; |
112 | unsigned int wakeup; | |
1da177e4 | 113 | fe_status_t status; |
400b7083 | 114 | unsigned long tune_mode_flags; |
36cb557a | 115 | unsigned int delay; |
86f40cc3 | 116 | unsigned int reinitialise; |
64454016 AQ |
117 | int tone; |
118 | int voltage; | |
36cb557a AQ |
119 | |
120 | /* swzigzag values */ | |
121 | unsigned int state; | |
122 | unsigned int bending; | |
123 | int lnb_drift; | |
124 | unsigned int inversion; | |
125 | unsigned int auto_step; | |
126 | unsigned int auto_sub_step; | |
127 | unsigned int started_auto_step; | |
128 | unsigned int min_delay; | |
129 | unsigned int max_drift; | |
130 | unsigned int step_size; | |
131 | int quality; | |
132 | unsigned int check_wrapped; | |
c59e7870 | 133 | enum dvbfe_search algo_status; |
1da177e4 LT |
134 | }; |
135 | ||
86f40cc3 | 136 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
1da177e4 LT |
137 | |
138 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) | |
139 | { | |
0c53c70f | 140 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
141 | struct dvb_fe_events *events = &fepriv->events; |
142 | struct dvb_frontend_event *e; | |
143 | int wp; | |
144 | ||
46b4f7c1 | 145 | dprintk ("%s\n", __func__); |
1da177e4 | 146 | |
03b76123 | 147 | if (mutex_lock_interruptible (&events->mtx)) |
1da177e4 LT |
148 | return; |
149 | ||
150 | wp = (events->eventw + 1) % MAX_EVENT; | |
151 | ||
152 | if (wp == events->eventr) { | |
153 | events->overflow = 1; | |
154 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
155 | } | |
156 | ||
157 | e = &events->events[events->eventw]; | |
158 | ||
159 | memcpy (&e->parameters, &fepriv->parameters, | |
160 | sizeof (struct dvb_frontend_parameters)); | |
161 | ||
162 | if (status & FE_HAS_LOCK) | |
dea74869 PB |
163 | if (fe->ops.get_frontend) |
164 | fe->ops.get_frontend(fe, &e->parameters); | |
1da177e4 LT |
165 | |
166 | events->eventw = wp; | |
167 | ||
03b76123 | 168 | mutex_unlock(&events->mtx); |
1da177e4 LT |
169 | |
170 | e->status = status; | |
171 | ||
172 | wake_up_interruptible (&events->wait_queue); | |
173 | } | |
174 | ||
175 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
176 | struct dvb_frontend_event *event, int flags) | |
177 | { | |
0c53c70f | 178 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
179 | struct dvb_fe_events *events = &fepriv->events; |
180 | ||
46b4f7c1 | 181 | dprintk ("%s\n", __func__); |
1da177e4 LT |
182 | |
183 | if (events->overflow) { | |
184 | events->overflow = 0; | |
185 | return -EOVERFLOW; | |
186 | } | |
187 | ||
188 | if (events->eventw == events->eventr) { | |
189 | int ret; | |
190 | ||
191 | if (flags & O_NONBLOCK) | |
192 | return -EWOULDBLOCK; | |
193 | ||
194 | up(&fepriv->sem); | |
195 | ||
196 | ret = wait_event_interruptible (events->wait_queue, | |
197 | events->eventw != events->eventr); | |
198 | ||
199 | if (down_interruptible (&fepriv->sem)) | |
200 | return -ERESTARTSYS; | |
201 | ||
202 | if (ret < 0) | |
203 | return ret; | |
204 | } | |
205 | ||
03b76123 | 206 | if (mutex_lock_interruptible (&events->mtx)) |
1da177e4 LT |
207 | return -ERESTARTSYS; |
208 | ||
209 | memcpy (event, &events->events[events->eventr], | |
210 | sizeof(struct dvb_frontend_event)); | |
211 | ||
212 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
213 | ||
03b76123 | 214 | mutex_unlock(&events->mtx); |
1da177e4 LT |
215 | |
216 | return 0; | |
217 | } | |
218 | ||
219 | static void dvb_frontend_init(struct dvb_frontend *fe) | |
220 | { | |
363c35fc | 221 | dprintk ("DVB: initialising adapter %i frontend %i (%s)...\n", |
1da177e4 | 222 | fe->dvb->num, |
363c35fc | 223 | fe->id, |
dea74869 PB |
224 | fe->ops.info.name); |
225 | ||
226 | if (fe->ops.init) | |
227 | fe->ops.init(fe); | |
228 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
229 | if (fe->ops.i2c_gate_ctrl) |
230 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
231 | fe->ops.tuner_ops.init(fe); |
232 | if (fe->ops.i2c_gate_ctrl) | |
233 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 234 | } |
1da177e4 LT |
235 | } |
236 | ||
86f40cc3 AQ |
237 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
238 | { | |
239 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
240 | ||
241 | fepriv->reinitialise = 1; | |
242 | dvb_frontend_wakeup(fe); | |
243 | } | |
244 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
245 | ||
36cb557a | 246 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 247 | { |
36cb557a | 248 | int q2; |
1da177e4 | 249 | |
46b4f7c1 | 250 | dprintk ("%s\n", __func__); |
1da177e4 | 251 | |
36cb557a AQ |
252 | if (locked) |
253 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
254 | else | |
255 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 256 | |
36cb557a AQ |
257 | q2 = fepriv->quality - 128; |
258 | q2 *= q2; | |
1da177e4 | 259 | |
36cb557a | 260 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
261 | } |
262 | ||
263 | /** | |
264 | * Performs automatic twiddling of frontend parameters. | |
265 | * | |
266 | * @param fe The frontend concerned. | |
267 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
268 | * @returns Number of complete iterations that have been performed. | |
269 | */ | |
36cb557a | 270 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
271 | { |
272 | int autoinversion; | |
273 | int ready = 0; | |
01886255 | 274 | int fe_set_err = 0; |
0c53c70f | 275 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
276 | int original_inversion = fepriv->parameters.inversion; |
277 | u32 original_frequency = fepriv->parameters.frequency; | |
278 | ||
279 | /* are we using autoinversion? */ | |
dea74869 | 280 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
1da177e4 LT |
281 | (fepriv->parameters.inversion == INVERSION_AUTO)); |
282 | ||
283 | /* setup parameters correctly */ | |
284 | while(!ready) { | |
285 | /* calculate the lnb_drift */ | |
286 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
287 | ||
288 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
289 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
290 | fepriv->auto_step = 0; | |
291 | fepriv->auto_sub_step = 0; | |
292 | fepriv->lnb_drift = 0; | |
293 | } | |
294 | ||
295 | /* perform inversion and +/- zigzag */ | |
296 | switch(fepriv->auto_sub_step) { | |
297 | case 0: | |
298 | /* try with the current inversion and current drift setting */ | |
299 | ready = 1; | |
300 | break; | |
301 | ||
302 | case 1: | |
303 | if (!autoinversion) break; | |
304 | ||
305 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
306 | ready = 1; | |
307 | break; | |
308 | ||
309 | case 2: | |
310 | if (fepriv->lnb_drift == 0) break; | |
311 | ||
312 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
313 | ready = 1; | |
314 | break; | |
315 | ||
316 | case 3: | |
317 | if (fepriv->lnb_drift == 0) break; | |
318 | if (!autoinversion) break; | |
319 | ||
320 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
321 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
322 | ready = 1; | |
323 | break; | |
324 | ||
325 | default: | |
326 | fepriv->auto_step++; | |
327 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
328 | break; | |
329 | } | |
330 | ||
331 | if (!ready) fepriv->auto_sub_step++; | |
332 | } | |
333 | ||
334 | /* if this attempt would hit where we started, indicate a complete | |
335 | * iteration has occurred */ | |
336 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
337 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
338 | return 1; | |
339 | } | |
340 | ||
341 | dprintk("%s: drift:%i inversion:%i auto_step:%i " | |
342 | "auto_sub_step:%i started_auto_step:%i\n", | |
46b4f7c1 | 343 | __func__, fepriv->lnb_drift, fepriv->inversion, |
1da177e4 LT |
344 | fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step); |
345 | ||
346 | /* set the frontend itself */ | |
347 | fepriv->parameters.frequency += fepriv->lnb_drift; | |
348 | if (autoinversion) | |
349 | fepriv->parameters.inversion = fepriv->inversion; | |
dea74869 | 350 | if (fe->ops.set_frontend) |
01886255 JG |
351 | fe_set_err = fe->ops.set_frontend(fe, &fepriv->parameters); |
352 | if (fe_set_err < 0) { | |
353 | fepriv->state = FESTATE_ERROR; | |
354 | return fe_set_err; | |
355 | } | |
1da177e4 LT |
356 | |
357 | fepriv->parameters.frequency = original_frequency; | |
358 | fepriv->parameters.inversion = original_inversion; | |
359 | ||
360 | fepriv->auto_sub_step++; | |
361 | return 0; | |
362 | } | |
363 | ||
36cb557a AQ |
364 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
365 | { | |
30d9464c | 366 | fe_status_t s = 0; |
01886255 | 367 | int retval = 0; |
36cb557a AQ |
368 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
369 | ||
370 | /* if we've got no parameters, just keep idling */ | |
371 | if (fepriv->state & FESTATE_IDLE) { | |
372 | fepriv->delay = 3*HZ; | |
373 | fepriv->quality = 0; | |
374 | return; | |
375 | } | |
376 | ||
377 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
378 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
379 | if (fepriv->state & FESTATE_RETUNE) { | |
dea74869 | 380 | if (fe->ops.set_frontend) |
01886255 JG |
381 | retval = fe->ops.set_frontend(fe, |
382 | &fepriv->parameters); | |
383 | if (retval < 0) | |
384 | fepriv->state = FESTATE_ERROR; | |
385 | else | |
386 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
387 | } |
388 | fepriv->delay = 3*HZ; | |
389 | fepriv->quality = 0; | |
390 | return; | |
391 | } | |
392 | ||
393 | /* get the frontend status */ | |
394 | if (fepriv->state & FESTATE_RETUNE) { | |
395 | s = 0; | |
396 | } else { | |
dea74869 PB |
397 | if (fe->ops.read_status) |
398 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
399 | if (s != fepriv->status) { |
400 | dvb_frontend_add_event(fe, s); | |
401 | fepriv->status = s; | |
402 | } | |
403 | } | |
404 | ||
405 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
406 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
407 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
408 | fepriv->state = FESTATE_TUNED; | |
409 | ||
410 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 411 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
36cb557a AQ |
412 | (fepriv->parameters.inversion == INVERSION_AUTO)) { |
413 | fepriv->parameters.inversion = fepriv->inversion; | |
414 | } | |
415 | return; | |
416 | } | |
417 | ||
418 | /* if we are tuned already, check we're still locked */ | |
419 | if (fepriv->state & FESTATE_TUNED) { | |
420 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
421 | ||
422 | /* we're tuned, and the lock is still good... */ | |
423 | if (s & FE_HAS_LOCK) { | |
424 | return; | |
425 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
426 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
427 | fepriv->started_auto_step = fepriv->auto_step; | |
428 | fepriv->check_wrapped = 0; | |
429 | } | |
430 | } | |
431 | ||
432 | /* don't actually do anything if we're in the LOSTLOCK state, | |
433 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
434 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 435 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
436 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
437 | return; | |
438 | } | |
439 | ||
440 | /* don't do anything if we're in the DISEQC state, since this | |
441 | * might be someone with a motorized dish controlled by DISEQC. | |
442 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
443 | if (fepriv->state & FESTATE_DISEQC) { | |
444 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
445 | return; | |
446 | } | |
447 | ||
448 | /* if we're in the RETUNE state, set everything up for a brand | |
449 | * new scan, keeping the current inversion setting, as the next | |
450 | * tune is _very_ likely to require the same */ | |
451 | if (fepriv->state & FESTATE_RETUNE) { | |
452 | fepriv->lnb_drift = 0; | |
453 | fepriv->auto_step = 0; | |
454 | fepriv->auto_sub_step = 0; | |
455 | fepriv->started_auto_step = 0; | |
456 | fepriv->check_wrapped = 0; | |
457 | } | |
458 | ||
459 | /* fast zigzag. */ | |
460 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
461 | fepriv->delay = fepriv->min_delay; | |
462 | ||
463 | /* peform a tune */ | |
01886255 JG |
464 | retval = dvb_frontend_swzigzag_autotune(fe, |
465 | fepriv->check_wrapped); | |
466 | if (retval < 0) { | |
467 | return; | |
468 | } else if (retval) { | |
36cb557a AQ |
469 | /* OK, if we've run out of trials at the fast speed. |
470 | * Drop back to slow for the _next_ attempt */ | |
471 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
472 | fepriv->started_auto_step = fepriv->auto_step; | |
473 | return; | |
474 | } | |
475 | fepriv->check_wrapped = 1; | |
476 | ||
477 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
478 | * This ensures we cannot return from an | |
479 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
480 | * occurs */ | |
481 | if (fepriv->state & FESTATE_RETUNE) { | |
482 | fepriv->state = FESTATE_TUNING_FAST; | |
483 | } | |
484 | } | |
485 | ||
486 | /* slow zigzag */ | |
487 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
488 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
489 | ||
490 | /* Note: don't bother checking for wrapping; we stay in this | |
491 | * state until we get a lock */ | |
492 | dvb_frontend_swzigzag_autotune(fe, 0); | |
493 | } | |
494 | } | |
495 | ||
1da177e4 LT |
496 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
497 | { | |
0c53c70f | 498 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
499 | |
500 | if (fepriv->exit) | |
501 | return 1; | |
502 | ||
503 | if (fepriv->dvbdev->writers == 1) | |
cc89c229 | 504 | if (time_after(jiffies, fepriv->release_jiffies + |
36cb557a | 505 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
506 | return 1; |
507 | ||
508 | return 0; | |
509 | } | |
510 | ||
511 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
512 | { | |
0c53c70f | 513 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
514 | |
515 | if (fepriv->wakeup) { | |
516 | fepriv->wakeup = 0; | |
517 | return 1; | |
518 | } | |
519 | return dvb_frontend_is_exiting(fe); | |
520 | } | |
521 | ||
522 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
523 | { | |
0c53c70f | 524 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
525 | |
526 | fepriv->wakeup = 1; | |
527 | wake_up_interruptible(&fepriv->wait_queue); | |
528 | } | |
529 | ||
1da177e4 LT |
530 | static int dvb_frontend_thread(void *data) |
531 | { | |
0c53c70f JS |
532 | struct dvb_frontend *fe = data; |
533 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 534 | unsigned long timeout; |
1da177e4 | 535 | fe_status_t s; |
c59e7870 MA |
536 | enum dvbfe_algo algo; |
537 | ||
36cb557a | 538 | struct dvb_frontend_parameters *params; |
1da177e4 | 539 | |
46b4f7c1 | 540 | dprintk("%s\n", __func__); |
1da177e4 | 541 | |
36cb557a AQ |
542 | fepriv->check_wrapped = 0; |
543 | fepriv->quality = 0; | |
544 | fepriv->delay = 3*HZ; | |
1da177e4 | 545 | fepriv->status = 0; |
1da177e4 | 546 | fepriv->wakeup = 0; |
04c56d0e AQ |
547 | fepriv->reinitialise = 0; |
548 | ||
549 | dvb_frontend_init(fe); | |
1da177e4 | 550 | |
83144186 | 551 | set_freezable(); |
1da177e4 LT |
552 | while (1) { |
553 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 554 | restart: |
1da177e4 | 555 | timeout = wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
556 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
557 | || freezing(current), | |
8eec1429 HP |
558 | fepriv->delay); |
559 | ||
560 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 561 | /* got signal or quitting */ |
57594a58 | 562 | fepriv->exit = 1; |
1da177e4 LT |
563 | break; |
564 | } | |
565 | ||
8eec1429 | 566 | if (try_to_freeze()) |
6591691b | 567 | goto restart; |
1da177e4 LT |
568 | |
569 | if (down_interruptible(&fepriv->sem)) | |
570 | break; | |
571 | ||
86f40cc3 AQ |
572 | if (fepriv->reinitialise) { |
573 | dvb_frontend_init(fe); | |
64454016 | 574 | if (fepriv->tone != -1) { |
dea74869 | 575 | fe->ops.set_tone(fe, fepriv->tone); |
64454016 AQ |
576 | } |
577 | if (fepriv->voltage != -1) { | |
dea74869 | 578 | fe->ops.set_voltage(fe, fepriv->voltage); |
64454016 | 579 | } |
86f40cc3 AQ |
580 | fepriv->reinitialise = 0; |
581 | } | |
582 | ||
36cb557a | 583 | /* do an iteration of the tuning loop */ |
d772bd03 | 584 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
585 | algo = fe->ops.get_frontend_algo(fe); |
586 | switch (algo) { | |
587 | case DVBFE_ALGO_HW: | |
588 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); | |
589 | params = NULL; /* have we been asked to RETUNE ? */ | |
590 | ||
d772bd03 | 591 | if (fepriv->state & FESTATE_RETUNE) { |
c59e7870 | 592 | dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__); |
f7c9bf96 | 593 | params = &fepriv->parameters; |
d772bd03 MA |
594 | fepriv->state = FESTATE_TUNED; |
595 | } | |
596 | ||
c59e7870 MA |
597 | if (fe->ops.tune) |
598 | fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); | |
599 | ||
2fac9a0f | 600 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
c59e7870 | 601 | dprintk("%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
602 | dvb_frontend_add_event(fe, s); |
603 | fepriv->status = s; | |
604 | } | |
c59e7870 MA |
605 | break; |
606 | case DVBFE_ALGO_SW: | |
607 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); | |
70d90635 | 608 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
609 | break; |
610 | case DVBFE_ALGO_CUSTOM: | |
611 | params = NULL; /* have we been asked to RETUNE ? */ | |
612 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); | |
613 | if (fepriv->state & FESTATE_RETUNE) { | |
614 | dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__); | |
f04c3ca8 | 615 | params = &fepriv->parameters; |
c59e7870 MA |
616 | fepriv->state = FESTATE_TUNED; |
617 | } | |
618 | /* Case where we are going to search for a carrier | |
619 | * User asked us to retune again for some reason, possibly | |
620 | * requesting a search with a new set of parameters | |
621 | */ | |
622 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 623 | if (fe->ops.search) { |
c59e7870 MA |
624 | fepriv->algo_status = fe->ops.search(fe, &fepriv->parameters); |
625 | /* We did do a search as was requested, the flags are | |
626 | * now unset as well and has the flags wrt to search. | |
627 | */ | |
7bcbdf38 AJ |
628 | } else { |
629 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
630 | } | |
c59e7870 MA |
631 | } |
632 | /* Track the carrier if the search was successful */ | |
633 | if (fepriv->algo_status == DVBFE_ALGO_SEARCH_SUCCESS) { | |
c59e7870 MA |
634 | if (fe->ops.track) |
635 | fe->ops.track(fe, &fepriv->parameters); | |
7bcbdf38 AJ |
636 | } else { |
637 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
638 | fepriv->delay = HZ / 2; | |
639 | } | |
640 | fe->ops.read_status(fe, &s); | |
641 | if (s != fepriv->status) { | |
642 | dvb_frontend_add_event(fe, s); /* update event list */ | |
643 | fepriv->status = s; | |
644 | if (!(s & FE_HAS_LOCK)) { | |
645 | fepriv->delay = HZ / 10; | |
646 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
647 | } else { | |
648 | fepriv->delay = 60 * HZ; | |
649 | } | |
c59e7870 MA |
650 | } |
651 | break; | |
652 | default: | |
653 | dprintk("%s: UNDEFINED ALGO !\n", __func__); | |
654 | break; | |
655 | } | |
656 | } else { | |
4a4edcca | 657 | dvb_frontend_swzigzag(fe); |
c59e7870 | 658 | } |
1da177e4 LT |
659 | } |
660 | ||
608f62d6 OE |
661 | if (dvb_powerdown_on_sleep) { |
662 | if (fe->ops.set_voltage) | |
663 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 664 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
665 | if (fe->ops.i2c_gate_ctrl) |
666 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
667 | fe->ops.tuner_ops.sleep(fe); |
668 | if (fe->ops.i2c_gate_ctrl) | |
669 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 670 | } |
dea74869 PB |
671 | if (fe->ops.sleep) |
672 | fe->ops.sleep(fe); | |
1da177e4 LT |
673 | } |
674 | ||
8eec1429 | 675 | fepriv->thread = NULL; |
a5beb7b3 | 676 | fepriv->exit = 0; |
1da177e4 LT |
677 | mb(); |
678 | ||
679 | dvb_frontend_wakeup(fe); | |
680 | return 0; | |
681 | } | |
682 | ||
683 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
684 | { | |
0c53c70f | 685 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 686 | |
46b4f7c1 | 687 | dprintk ("%s\n", __func__); |
1da177e4 LT |
688 | |
689 | fepriv->exit = 1; | |
690 | mb(); | |
691 | ||
8eec1429 | 692 | if (!fepriv->thread) |
1da177e4 LT |
693 | return; |
694 | ||
8eec1429 | 695 | kthread_stop(fepriv->thread); |
ca5be9cd | 696 | |
8eec1429 | 697 | init_MUTEX (&fepriv->sem); |
1da177e4 LT |
698 | fepriv->state = FESTATE_IDLE; |
699 | ||
700 | /* paranoia check in case a signal arrived */ | |
8eec1429 HP |
701 | if (fepriv->thread) |
702 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", | |
703 | fepriv->thread); | |
1da177e4 LT |
704 | } |
705 | ||
83b75b04 N |
706 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
707 | { | |
708 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
709 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
710 | curtime.tv_usec - lasttime.tv_usec); | |
711 | } | |
712 | EXPORT_SYMBOL(timeval_usec_diff); | |
713 | ||
714 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
715 | { | |
716 | curtime->tv_usec += add_usec; | |
717 | if (curtime->tv_usec >= 1000000) { | |
718 | curtime->tv_usec -= 1000000; | |
719 | curtime->tv_sec++; | |
720 | } | |
721 | } | |
722 | ||
723 | /* | |
724 | * Sleep until gettimeofday() > waketime + add_usec | |
725 | * This needs to be as precise as possible, but as the delay is | |
726 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
727 | * followed by usleep (normally a busy-wait loop) for the remainder | |
728 | */ | |
729 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
730 | { | |
731 | struct timeval lasttime; | |
732 | s32 delta, newdelta; | |
733 | ||
734 | timeval_usec_add(waketime, add_usec); | |
735 | ||
736 | do_gettimeofday(&lasttime); | |
737 | delta = timeval_usec_diff(lasttime, *waketime); | |
738 | if (delta > 2500) { | |
739 | msleep((delta - 1500) / 1000); | |
740 | do_gettimeofday(&lasttime); | |
741 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
742 | delta = (newdelta > delta) ? 0 : newdelta; | |
743 | } | |
744 | if (delta > 0) | |
745 | udelay(delta); | |
746 | } | |
747 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
748 | ||
1da177e4 LT |
749 | static int dvb_frontend_start(struct dvb_frontend *fe) |
750 | { | |
751 | int ret; | |
0c53c70f | 752 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 753 | struct task_struct *fe_thread; |
1da177e4 | 754 | |
46b4f7c1 | 755 | dprintk ("%s\n", __func__); |
1da177e4 | 756 | |
8eec1429 | 757 | if (fepriv->thread) { |
1da177e4 LT |
758 | if (!fepriv->exit) |
759 | return 0; | |
760 | else | |
761 | dvb_frontend_stop (fe); | |
762 | } | |
763 | ||
764 | if (signal_pending(current)) | |
765 | return -EINTR; | |
766 | if (down_interruptible (&fepriv->sem)) | |
767 | return -EINTR; | |
768 | ||
769 | fepriv->state = FESTATE_IDLE; | |
770 | fepriv->exit = 0; | |
8eec1429 | 771 | fepriv->thread = NULL; |
1da177e4 LT |
772 | mb(); |
773 | ||
8eec1429 | 774 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 775 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
776 | if (IS_ERR(fe_thread)) { |
777 | ret = PTR_ERR(fe_thread); | |
778 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); | |
1da177e4 LT |
779 | up(&fepriv->sem); |
780 | return ret; | |
781 | } | |
8eec1429 | 782 | fepriv->thread = fe_thread; |
1da177e4 LT |
783 | return 0; |
784 | } | |
785 | ||
c471b331 OE |
786 | static void dvb_frontend_get_frequeny_limits(struct dvb_frontend *fe, |
787 | u32 *freq_min, u32 *freq_max) | |
788 | { | |
789 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
790 | ||
791 | if (fe->ops.info.frequency_max == 0) | |
792 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
793 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
794 | *freq_max = fe->ops.info.frequency_max; | |
795 | else | |
796 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
797 | ||
798 | if (*freq_min == 0 || *freq_max == 0) | |
363c35fc ST |
799 | printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
800 | fe->dvb->num,fe->id); | |
c471b331 OE |
801 | } |
802 | ||
1fab46f0 OE |
803 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe, |
804 | struct dvb_frontend_parameters *parms) | |
805 | { | |
c471b331 OE |
806 | u32 freq_min; |
807 | u32 freq_max; | |
808 | ||
1fab46f0 | 809 | /* range check: frequency */ |
c471b331 OE |
810 | dvb_frontend_get_frequeny_limits(fe, &freq_min, &freq_max); |
811 | if ((freq_min && parms->frequency < freq_min) || | |
812 | (freq_max && parms->frequency > freq_max)) { | |
363c35fc ST |
813 | printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
814 | fe->dvb->num, fe->id, parms->frequency, freq_min, freq_max); | |
1fab46f0 OE |
815 | return -EINVAL; |
816 | } | |
817 | ||
818 | /* range check: symbol rate */ | |
819 | if (fe->ops.info.type == FE_QPSK) { | |
820 | if ((fe->ops.info.symbol_rate_min && | |
821 | parms->u.qpsk.symbol_rate < fe->ops.info.symbol_rate_min) || | |
822 | (fe->ops.info.symbol_rate_max && | |
823 | parms->u.qpsk.symbol_rate > fe->ops.info.symbol_rate_max)) { | |
363c35fc ST |
824 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
825 | fe->dvb->num, fe->id, parms->u.qpsk.symbol_rate, | |
1fab46f0 OE |
826 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
827 | return -EINVAL; | |
828 | } | |
829 | ||
830 | } else if (fe->ops.info.type == FE_QAM) { | |
831 | if ((fe->ops.info.symbol_rate_min && | |
832 | parms->u.qam.symbol_rate < fe->ops.info.symbol_rate_min) || | |
833 | (fe->ops.info.symbol_rate_max && | |
834 | parms->u.qam.symbol_rate > fe->ops.info.symbol_rate_max)) { | |
363c35fc ST |
835 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
836 | fe->dvb->num, fe->id, parms->u.qam.symbol_rate, | |
1fab46f0 OE |
837 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
838 | return -EINVAL; | |
839 | } | |
840 | } | |
841 | ||
f51fad85 JG |
842 | /* check for supported modulation */ |
843 | if (fe->ops.info.type == FE_QAM && | |
844 | (parms->u.qam.modulation > QAM_AUTO || | |
845 | !((1 << (parms->u.qam.modulation + 10)) & fe->ops.info.caps))) { | |
846 | printk(KERN_WARNING "DVB: adapter %i frontend %i modulation %u not supported\n", | |
847 | fe->dvb->num, fe->id, parms->u.qam.modulation); | |
848 | return -EINVAL; | |
849 | } | |
850 | ||
1fab46f0 OE |
851 | return 0; |
852 | } | |
853 | ||
b6e760f3 PB |
854 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
855 | { | |
856 | int i; | |
857 | ||
858 | memset(&(fe->dtv_property_cache), 0, | |
859 | sizeof(struct dtv_frontend_properties)); | |
860 | ||
861 | fe->dtv_property_cache.state = DTV_CLEAR; | |
862 | fe->dtv_property_cache.delivery_system = SYS_UNDEFINED; | |
863 | fe->dtv_property_cache.inversion = INVERSION_AUTO; | |
864 | fe->dtv_property_cache.fec_inner = FEC_AUTO; | |
865 | fe->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_AUTO; | |
866 | fe->dtv_property_cache.bandwidth_hz = BANDWIDTH_AUTO; | |
867 | fe->dtv_property_cache.guard_interval = GUARD_INTERVAL_AUTO; | |
868 | fe->dtv_property_cache.hierarchy = HIERARCHY_AUTO; | |
869 | fe->dtv_property_cache.symbol_rate = QAM_AUTO; | |
870 | fe->dtv_property_cache.code_rate_HP = FEC_AUTO; | |
871 | fe->dtv_property_cache.code_rate_LP = FEC_AUTO; | |
872 | ||
873 | fe->dtv_property_cache.isdbt_partial_reception = -1; | |
874 | fe->dtv_property_cache.isdbt_sb_mode = -1; | |
875 | fe->dtv_property_cache.isdbt_sb_subchannel = -1; | |
876 | fe->dtv_property_cache.isdbt_sb_segment_idx = -1; | |
877 | fe->dtv_property_cache.isdbt_sb_segment_count = -1; | |
878 | fe->dtv_property_cache.isdbt_layer_enabled = 0x7; | |
879 | for (i = 0; i < 3; i++) { | |
880 | fe->dtv_property_cache.layer[i].fec = FEC_AUTO; | |
881 | fe->dtv_property_cache.layer[i].modulation = QAM_AUTO; | |
882 | fe->dtv_property_cache.layer[i].interleaving = -1; | |
883 | fe->dtv_property_cache.layer[i].segment_count = -1; | |
884 | } | |
885 | ||
886 | return 0; | |
887 | } | |
888 | ||
889 | #define _DTV_CMD(n, s, b) \ | |
890 | [n] = { \ | |
891 | .name = #n, \ | |
892 | .cmd = n, \ | |
893 | .set = s,\ | |
894 | .buffer = b \ | |
895 | } | |
896 | ||
072ce0c5 | 897 | static struct dtv_cmds_h dtv_cmds[] = { |
e7fee0f3 ST |
898 | [DTV_TUNE] = { |
899 | .name = "DTV_TUNE", | |
900 | .cmd = DTV_TUNE, | |
6b73eeaf ST |
901 | .set = 1, |
902 | }, | |
e7fee0f3 ST |
903 | [DTV_CLEAR] = { |
904 | .name = "DTV_CLEAR", | |
905 | .cmd = DTV_CLEAR, | |
6b73eeaf ST |
906 | .set = 1, |
907 | }, | |
908 | ||
909 | /* Set */ | |
363429a0 ST |
910 | [DTV_FREQUENCY] = { |
911 | .name = "DTV_FREQUENCY", | |
912 | .cmd = DTV_FREQUENCY, | |
6b73eeaf ST |
913 | .set = 1, |
914 | }, | |
75b7f943 ST |
915 | [DTV_BANDWIDTH_HZ] = { |
916 | .name = "DTV_BANDWIDTH_HZ", | |
917 | .cmd = DTV_BANDWIDTH_HZ, | |
6b73eeaf ST |
918 | .set = 1, |
919 | }, | |
363429a0 ST |
920 | [DTV_MODULATION] = { |
921 | .name = "DTV_MODULATION", | |
922 | .cmd = DTV_MODULATION, | |
6b73eeaf ST |
923 | .set = 1, |
924 | }, | |
363429a0 ST |
925 | [DTV_INVERSION] = { |
926 | .name = "DTV_INVERSION", | |
927 | .cmd = DTV_INVERSION, | |
6b73eeaf ST |
928 | .set = 1, |
929 | }, | |
363429a0 ST |
930 | [DTV_DISEQC_MASTER] = { |
931 | .name = "DTV_DISEQC_MASTER", | |
932 | .cmd = DTV_DISEQC_MASTER, | |
6b73eeaf ST |
933 | .set = 1, |
934 | .buffer = 1, | |
935 | }, | |
363429a0 ST |
936 | [DTV_SYMBOL_RATE] = { |
937 | .name = "DTV_SYMBOL_RATE", | |
938 | .cmd = DTV_SYMBOL_RATE, | |
6b73eeaf ST |
939 | .set = 1, |
940 | }, | |
363429a0 ST |
941 | [DTV_INNER_FEC] = { |
942 | .name = "DTV_INNER_FEC", | |
943 | .cmd = DTV_INNER_FEC, | |
6b73eeaf ST |
944 | .set = 1, |
945 | }, | |
363429a0 ST |
946 | [DTV_VOLTAGE] = { |
947 | .name = "DTV_VOLTAGE", | |
948 | .cmd = DTV_VOLTAGE, | |
6b73eeaf ST |
949 | .set = 1, |
950 | }, | |
363429a0 ST |
951 | [DTV_TONE] = { |
952 | .name = "DTV_TONE", | |
953 | .cmd = DTV_TONE, | |
6b73eeaf ST |
954 | .set = 1, |
955 | }, | |
363429a0 ST |
956 | [DTV_PILOT] = { |
957 | .name = "DTV_PILOT", | |
958 | .cmd = DTV_PILOT, | |
6b73eeaf ST |
959 | .set = 1, |
960 | }, | |
363429a0 ST |
961 | [DTV_ROLLOFF] = { |
962 | .name = "DTV_ROLLOFF", | |
963 | .cmd = DTV_ROLLOFF, | |
6b73eeaf ST |
964 | .set = 1, |
965 | }, | |
363429a0 ST |
966 | [DTV_DELIVERY_SYSTEM] = { |
967 | .name = "DTV_DELIVERY_SYSTEM", | |
968 | .cmd = DTV_DELIVERY_SYSTEM, | |
6b73eeaf ST |
969 | .set = 1, |
970 | }, | |
ef526f42 ST |
971 | [DTV_HIERARCHY] = { |
972 | .name = "DTV_HIERARCHY", | |
973 | .cmd = DTV_HIERARCHY, | |
974 | .set = 1, | |
975 | }, | |
a4de91be ST |
976 | [DTV_CODE_RATE_HP] = { |
977 | .name = "DTV_CODE_RATE_HP", | |
978 | .cmd = DTV_CODE_RATE_HP, | |
979 | .set = 1, | |
980 | }, | |
981 | [DTV_CODE_RATE_LP] = { | |
982 | .name = "DTV_CODE_RATE_LP", | |
983 | .cmd = DTV_CODE_RATE_LP, | |
984 | .set = 1, | |
985 | }, | |
b87625f0 ST |
986 | [DTV_GUARD_INTERVAL] = { |
987 | .name = "DTV_GUARD_INTERVAL", | |
988 | .cmd = DTV_GUARD_INTERVAL, | |
989 | .set = 1, | |
990 | }, | |
991 | [DTV_TRANSMISSION_MODE] = { | |
992 | .name = "DTV_TRANSMISSION_MODE", | |
993 | .cmd = DTV_TRANSMISSION_MODE, | |
994 | .set = 1, | |
995 | }, | |
b6e760f3 PB |
996 | |
997 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
998 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
999 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1000 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1001 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1002 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1003 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1004 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1005 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1006 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1007 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1008 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1009 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1010 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1011 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1012 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1013 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1014 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1015 | ||
1016 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 0, 0), | |
1017 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 0, 0), | |
1018 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 0, 0), | |
1019 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 0, 0), | |
1020 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 0, 0), | |
e7b7949a | 1021 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 0, 0), |
b6e760f3 PB |
1022 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 0, 0), |
1023 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 0, 0), | |
1024 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 0, 0), | |
1025 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 0, 0), | |
1026 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 0, 0), | |
1027 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 0, 0), | |
1028 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 0, 0), | |
1029 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 0, 0), | |
1030 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 0, 0), | |
1031 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 0, 0), | |
1032 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 0, 0), | |
1033 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 0, 0), | |
1034 | ||
98293ef3 HT |
1035 | _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0), |
1036 | ||
6b73eeaf | 1037 | /* Get */ |
363429a0 ST |
1038 | [DTV_DISEQC_SLAVE_REPLY] = { |
1039 | .name = "DTV_DISEQC_SLAVE_REPLY", | |
1040 | .cmd = DTV_DISEQC_SLAVE_REPLY, | |
6b73eeaf ST |
1041 | .set = 0, |
1042 | .buffer = 1, | |
1043 | }, | |
b6e760f3 | 1044 | |
eacf8d8d ST |
1045 | [DTV_API_VERSION] = { |
1046 | .name = "DTV_API_VERSION", | |
1047 | .cmd = DTV_API_VERSION, | |
1048 | .set = 0, | |
1049 | }, | |
a4de91be ST |
1050 | [DTV_CODE_RATE_HP] = { |
1051 | .name = "DTV_CODE_RATE_HP", | |
1052 | .cmd = DTV_CODE_RATE_HP, | |
1053 | .set = 0, | |
1054 | }, | |
1055 | [DTV_CODE_RATE_LP] = { | |
1056 | .name = "DTV_CODE_RATE_LP", | |
1057 | .cmd = DTV_CODE_RATE_LP, | |
1058 | .set = 0, | |
1059 | }, | |
b87625f0 ST |
1060 | [DTV_GUARD_INTERVAL] = { |
1061 | .name = "DTV_GUARD_INTERVAL", | |
1062 | .cmd = DTV_GUARD_INTERVAL, | |
1063 | .set = 0, | |
1064 | }, | |
1065 | [DTV_TRANSMISSION_MODE] = { | |
1066 | .name = "DTV_TRANSMISSION_MODE", | |
1067 | .cmd = DTV_TRANSMISSION_MODE, | |
1068 | .set = 0, | |
1069 | }, | |
ef526f42 ST |
1070 | [DTV_HIERARCHY] = { |
1071 | .name = "DTV_HIERARCHY", | |
1072 | .cmd = DTV_HIERARCHY, | |
1073 | .set = 0, | |
1074 | }, | |
6b73eeaf ST |
1075 | }; |
1076 | ||
072ce0c5 | 1077 | static void dtv_property_dump(struct dtv_property *tvp) |
6b73eeaf ST |
1078 | { |
1079 | int i; | |
1080 | ||
82d7669d | 1081 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
a1bc84c0 | 1082 | printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n", |
4aae8efb DB |
1083 | __func__, tvp->cmd); |
1084 | return; | |
1085 | } | |
1086 | ||
a1bc84c0 ST |
1087 | dprintk("%s() tvp.cmd = 0x%08x (%s)\n" |
1088 | ,__func__ | |
6b73eeaf | 1089 | ,tvp->cmd |
56f0680a | 1090 | ,dtv_cmds[ tvp->cmd ].name); |
6b73eeaf | 1091 | |
56f0680a | 1092 | if(dtv_cmds[ tvp->cmd ].buffer) { |
6b73eeaf | 1093 | |
a1bc84c0 ST |
1094 | dprintk("%s() tvp.u.buffer.len = 0x%02x\n" |
1095 | ,__func__ | |
6b73eeaf ST |
1096 | ,tvp->u.buffer.len); |
1097 | ||
1098 | for(i = 0; i < tvp->u.buffer.len; i++) | |
a1bc84c0 ST |
1099 | dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
1100 | ,__func__ | |
6b73eeaf ST |
1101 | ,i |
1102 | ,tvp->u.buffer.data[i]); | |
1103 | ||
1104 | } else | |
a1bc84c0 | 1105 | dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data); |
6b73eeaf ST |
1106 | } |
1107 | ||
072ce0c5 | 1108 | static int is_legacy_delivery_system(fe_delivery_system_t s) |
6b73eeaf ST |
1109 | { |
1110 | if((s == SYS_UNDEFINED) || (s == SYS_DVBC_ANNEX_AC) || | |
3fa37deb DH |
1111 | (s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS) || |
1112 | (s == SYS_ATSC)) | |
6b73eeaf ST |
1113 | return 1; |
1114 | ||
1115 | return 0; | |
1116 | } | |
1117 | ||
ee33c525 ST |
1118 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1119 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1120 | * it's being used for the legacy or new API, reducing code and complexity. | |
1121 | */ | |
072ce0c5 MCC |
1122 | static void dtv_property_cache_sync(struct dvb_frontend *fe, |
1123 | struct dvb_frontend_parameters *p) | |
ee33c525 ST |
1124 | { |
1125 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1126 | ||
1127 | c->frequency = p->frequency; | |
1128 | c->inversion = p->inversion; | |
1129 | ||
1130 | switch (fe->ops.info.type) { | |
1131 | case FE_QPSK: | |
e5cefa82 DB |
1132 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ |
1133 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
ee33c525 ST |
1134 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1135 | c->fec_inner = p->u.qpsk.fec_inner; | |
80a773c9 | 1136 | c->delivery_system = SYS_DVBS; |
ee33c525 ST |
1137 | break; |
1138 | case FE_QAM: | |
1139 | c->symbol_rate = p->u.qam.symbol_rate; | |
1140 | c->fec_inner = p->u.qam.fec_inner; | |
1141 | c->modulation = p->u.qam.modulation; | |
80a773c9 | 1142 | c->delivery_system = SYS_DVBC_ANNEX_AC; |
ee33c525 ST |
1143 | break; |
1144 | case FE_OFDM: | |
75b7f943 ST |
1145 | if (p->u.ofdm.bandwidth == BANDWIDTH_6_MHZ) |
1146 | c->bandwidth_hz = 6000000; | |
1147 | else if (p->u.ofdm.bandwidth == BANDWIDTH_7_MHZ) | |
1148 | c->bandwidth_hz = 7000000; | |
1149 | else if (p->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) | |
1150 | c->bandwidth_hz = 8000000; | |
1151 | else | |
1152 | /* Including BANDWIDTH_AUTO */ | |
1153 | c->bandwidth_hz = 0; | |
ee33c525 ST |
1154 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1155 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1156 | c->modulation = p->u.ofdm.constellation; | |
1157 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1158 | c->guard_interval = p->u.ofdm.guard_interval; | |
1159 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
80a773c9 | 1160 | c->delivery_system = SYS_DVBT; |
ee33c525 ST |
1161 | break; |
1162 | case FE_ATSC: | |
1163 | c->modulation = p->u.vsb.modulation; | |
80a773c9 ST |
1164 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1165 | c->delivery_system = SYS_ATSC; | |
1166 | else | |
1167 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 ST |
1168 | break; |
1169 | } | |
1170 | } | |
1171 | ||
d5748f10 ST |
1172 | /* Ensure the cached values are set correctly in the frontend |
1173 | * legacy tuning structures, for the advanced tuning API. | |
1174 | */ | |
072ce0c5 | 1175 | static void dtv_property_legacy_params_sync(struct dvb_frontend *fe) |
6b73eeaf | 1176 | { |
d5748f10 ST |
1177 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1178 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1179 | struct dvb_frontend_parameters *p = &fepriv->parameters; | |
6b73eeaf | 1180 | |
d5748f10 ST |
1181 | p->frequency = c->frequency; |
1182 | p->inversion = c->inversion; | |
6b73eeaf | 1183 | |
d5748f10 ST |
1184 | switch (fe->ops.info.type) { |
1185 | case FE_QPSK: | |
a1bc84c0 | 1186 | dprintk("%s() Preparing QPSK req\n", __func__); |
d5748f10 ST |
1187 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1188 | p->u.qpsk.fec_inner = c->fec_inner; | |
80a773c9 | 1189 | c->delivery_system = SYS_DVBS; |
d5748f10 ST |
1190 | break; |
1191 | case FE_QAM: | |
a1bc84c0 | 1192 | dprintk("%s() Preparing QAM req\n", __func__); |
d5748f10 ST |
1193 | p->u.qam.symbol_rate = c->symbol_rate; |
1194 | p->u.qam.fec_inner = c->fec_inner; | |
1195 | p->u.qam.modulation = c->modulation; | |
80a773c9 | 1196 | c->delivery_system = SYS_DVBC_ANNEX_AC; |
d5748f10 ST |
1197 | break; |
1198 | case FE_OFDM: | |
a1bc84c0 | 1199 | dprintk("%s() Preparing OFDM req\n", __func__); |
75b7f943 ST |
1200 | if (c->bandwidth_hz == 6000000) |
1201 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1202 | else if (c->bandwidth_hz == 7000000) | |
1203 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1204 | else if (c->bandwidth_hz == 8000000) | |
1205 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
1206 | else | |
1207 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; | |
d5748f10 ST |
1208 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1209 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1210 | p->u.ofdm.constellation = c->modulation; | |
1211 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1212 | p->u.ofdm.guard_interval = c->guard_interval; | |
1213 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
80a773c9 | 1214 | c->delivery_system = SYS_DVBT; |
d5748f10 ST |
1215 | break; |
1216 | case FE_ATSC: | |
a1bc84c0 | 1217 | dprintk("%s() Preparing VSB req\n", __func__); |
d5748f10 | 1218 | p->u.vsb.modulation = c->modulation; |
80a773c9 ST |
1219 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1220 | c->delivery_system = SYS_ATSC; | |
1221 | else | |
1222 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
d5748f10 ST |
1223 | break; |
1224 | } | |
1225 | } | |
1226 | ||
1227 | /* Ensure the cached values are set correctly in the frontend | |
1228 | * legacy tuning structures, for the legacy tuning API. | |
1229 | */ | |
072ce0c5 | 1230 | static void dtv_property_adv_params_sync(struct dvb_frontend *fe) |
d5748f10 | 1231 | { |
56f0680a | 1232 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1233 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
d5748f10 | 1234 | struct dvb_frontend_parameters *p = &fepriv->parameters; |
6b73eeaf | 1235 | |
d5748f10 ST |
1236 | p->frequency = c->frequency; |
1237 | p->inversion = c->inversion; | |
1238 | ||
1239 | switch(c->modulation) { | |
0a6393ae ST |
1240 | case PSK_8: |
1241 | case APSK_16: | |
97854829 | 1242 | case APSK_32: |
0a6393ae | 1243 | case QPSK: |
d5748f10 ST |
1244 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1245 | p->u.qpsk.fec_inner = c->fec_inner; | |
1246 | break; | |
1247 | default: | |
1248 | break; | |
1249 | } | |
1250 | ||
1251 | if(c->delivery_system == SYS_ISDBT) { | |
1252 | /* Fake out a generic DVB-T request so we pass validation in the ioctl */ | |
1253 | p->frequency = c->frequency; | |
b6e760f3 | 1254 | p->inversion = c->inversion; |
d5748f10 ST |
1255 | p->u.ofdm.constellation = QAM_AUTO; |
1256 | p->u.ofdm.code_rate_HP = FEC_AUTO; | |
1257 | p->u.ofdm.code_rate_LP = FEC_AUTO; | |
d5748f10 ST |
1258 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO; |
1259 | p->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO; | |
1260 | p->u.ofdm.hierarchy_information = HIERARCHY_AUTO; | |
b6e760f3 PB |
1261 | if (c->bandwidth_hz == 8000000) |
1262 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
1263 | else if (c->bandwidth_hz == 7000000) | |
1264 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1265 | else if (c->bandwidth_hz == 6000000) | |
1266 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1267 | else | |
1268 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; | |
d5748f10 ST |
1269 | } |
1270 | } | |
1271 | ||
072ce0c5 | 1272 | static void dtv_property_cache_submit(struct dvb_frontend *fe) |
d5748f10 ST |
1273 | { |
1274 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1275 | ||
d5748f10 ST |
1276 | /* For legacy delivery systems we don't need the delivery_system to |
1277 | * be specified, but we populate the older structures from the cache | |
1278 | * so we can call set_frontend on older drivers. | |
1279 | */ | |
6b73eeaf | 1280 | if(is_legacy_delivery_system(c->delivery_system)) { |
6b73eeaf | 1281 | |
a1bc84c0 | 1282 | dprintk("%s() legacy, modulation = %d\n", __func__, c->modulation); |
d5748f10 | 1283 | dtv_property_legacy_params_sync(fe); |
6b73eeaf | 1284 | |
6b73eeaf | 1285 | } else { |
a1bc84c0 | 1286 | dprintk("%s() adv, modulation = %d\n", __func__, c->modulation); |
d5748f10 | 1287 | |
6b73eeaf ST |
1288 | /* For advanced delivery systems / modulation types ... |
1289 | * we seed the lecacy dvb_frontend_parameters structure | |
1290 | * so that the sanity checking code later in the IOCTL processing | |
1291 | * can validate our basic frequency ranges, symbolrates, modulation | |
1292 | * etc. | |
1293 | */ | |
d5748f10 | 1294 | dtv_property_adv_params_sync(fe); |
6b73eeaf | 1295 | } |
6b73eeaf ST |
1296 | } |
1297 | ||
13c97bf5 ST |
1298 | static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file, |
1299 | unsigned int cmd, void *parg); | |
1300 | static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, | |
1301 | unsigned int cmd, void *parg); | |
1302 | ||
072ce0c5 MCC |
1303 | static int dtv_property_process_get(struct dvb_frontend *fe, |
1304 | struct dtv_property *tvp, | |
1305 | struct inode *inode, struct file *file) | |
363429a0 ST |
1306 | { |
1307 | int r = 0; | |
1308 | ||
363429a0 ST |
1309 | dtv_property_dump(tvp); |
1310 | ||
bfbf2dae ST |
1311 | /* Allow the frontend to validate incoming properties */ |
1312 | if (fe->ops.get_property) | |
1313 | r = fe->ops.get_property(fe, tvp); | |
1314 | ||
1315 | if (r < 0) | |
1316 | return r; | |
1317 | ||
363429a0 ST |
1318 | switch(tvp->cmd) { |
1319 | case DTV_FREQUENCY: | |
1320 | tvp->u.data = fe->dtv_property_cache.frequency; | |
1321 | break; | |
1322 | case DTV_MODULATION: | |
1323 | tvp->u.data = fe->dtv_property_cache.modulation; | |
1324 | break; | |
75b7f943 ST |
1325 | case DTV_BANDWIDTH_HZ: |
1326 | tvp->u.data = fe->dtv_property_cache.bandwidth_hz; | |
363429a0 ST |
1327 | break; |
1328 | case DTV_INVERSION: | |
1329 | tvp->u.data = fe->dtv_property_cache.inversion; | |
1330 | break; | |
1331 | case DTV_SYMBOL_RATE: | |
1332 | tvp->u.data = fe->dtv_property_cache.symbol_rate; | |
1333 | break; | |
1334 | case DTV_INNER_FEC: | |
1335 | tvp->u.data = fe->dtv_property_cache.fec_inner; | |
1336 | break; | |
1337 | case DTV_PILOT: | |
1338 | tvp->u.data = fe->dtv_property_cache.pilot; | |
1339 | break; | |
1340 | case DTV_ROLLOFF: | |
1341 | tvp->u.data = fe->dtv_property_cache.rolloff; | |
1342 | break; | |
1343 | case DTV_DELIVERY_SYSTEM: | |
1344 | tvp->u.data = fe->dtv_property_cache.delivery_system; | |
1345 | break; | |
363429a0 ST |
1346 | case DTV_VOLTAGE: |
1347 | tvp->u.data = fe->dtv_property_cache.voltage; | |
1348 | break; | |
1349 | case DTV_TONE: | |
1350 | tvp->u.data = fe->dtv_property_cache.sectone; | |
1351 | break; | |
eacf8d8d ST |
1352 | case DTV_API_VERSION: |
1353 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1354 | break; | |
a4de91be ST |
1355 | case DTV_CODE_RATE_HP: |
1356 | tvp->u.data = fe->dtv_property_cache.code_rate_HP; | |
1357 | break; | |
1358 | case DTV_CODE_RATE_LP: | |
1359 | tvp->u.data = fe->dtv_property_cache.code_rate_LP; | |
1360 | break; | |
b87625f0 ST |
1361 | case DTV_GUARD_INTERVAL: |
1362 | tvp->u.data = fe->dtv_property_cache.guard_interval; | |
1363 | break; | |
1364 | case DTV_TRANSMISSION_MODE: | |
1365 | tvp->u.data = fe->dtv_property_cache.transmission_mode; | |
1366 | break; | |
ef526f42 ST |
1367 | case DTV_HIERARCHY: |
1368 | tvp->u.data = fe->dtv_property_cache.hierarchy; | |
1369 | break; | |
b6e760f3 PB |
1370 | |
1371 | /* ISDB-T Support here */ | |
1372 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
1373 | tvp->u.data = fe->dtv_property_cache.isdbt_partial_reception; | |
1374 | break; | |
1375 | case DTV_ISDBT_SOUND_BROADCASTING: | |
1376 | tvp->u.data = fe->dtv_property_cache.isdbt_sb_mode; | |
1377 | break; | |
1378 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
1379 | tvp->u.data = fe->dtv_property_cache.isdbt_sb_subchannel; | |
1380 | break; | |
1381 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
1382 | tvp->u.data = fe->dtv_property_cache.isdbt_sb_segment_idx; | |
1383 | break; | |
1384 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
1385 | tvp->u.data = fe->dtv_property_cache.isdbt_sb_segment_count; | |
1386 | break; | |
e7b7949a PB |
1387 | case DTV_ISDBT_LAYER_ENABLED: |
1388 | tvp->u.data = fe->dtv_property_cache.isdbt_layer_enabled; | |
1389 | break; | |
b6e760f3 PB |
1390 | case DTV_ISDBT_LAYERA_FEC: |
1391 | tvp->u.data = fe->dtv_property_cache.layer[0].fec; | |
1392 | break; | |
1393 | case DTV_ISDBT_LAYERA_MODULATION: | |
1394 | tvp->u.data = fe->dtv_property_cache.layer[0].modulation; | |
1395 | break; | |
1396 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
1397 | tvp->u.data = fe->dtv_property_cache.layer[0].segment_count; | |
1398 | break; | |
1399 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
1400 | tvp->u.data = fe->dtv_property_cache.layer[0].interleaving; | |
1401 | break; | |
1402 | case DTV_ISDBT_LAYERB_FEC: | |
1403 | tvp->u.data = fe->dtv_property_cache.layer[1].fec; | |
1404 | break; | |
1405 | case DTV_ISDBT_LAYERB_MODULATION: | |
1406 | tvp->u.data = fe->dtv_property_cache.layer[1].modulation; | |
1407 | break; | |
1408 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
1409 | tvp->u.data = fe->dtv_property_cache.layer[1].segment_count; | |
1410 | break; | |
1411 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
1412 | tvp->u.data = fe->dtv_property_cache.layer[1].interleaving; | |
1413 | break; | |
1414 | case DTV_ISDBT_LAYERC_FEC: | |
1415 | tvp->u.data = fe->dtv_property_cache.layer[2].fec; | |
1416 | break; | |
1417 | case DTV_ISDBT_LAYERC_MODULATION: | |
1418 | tvp->u.data = fe->dtv_property_cache.layer[2].modulation; | |
1419 | break; | |
1420 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
1421 | tvp->u.data = fe->dtv_property_cache.layer[2].segment_count; | |
1422 | break; | |
1423 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
1424 | tvp->u.data = fe->dtv_property_cache.layer[2].interleaving; | |
1425 | break; | |
98293ef3 HT |
1426 | case DTV_ISDBS_TS_ID: |
1427 | tvp->u.data = fe->dtv_property_cache.isdbs_ts_id; | |
1428 | break; | |
363429a0 ST |
1429 | default: |
1430 | r = -1; | |
1431 | } | |
1432 | ||
1433 | return r; | |
1434 | } | |
1435 | ||
072ce0c5 MCC |
1436 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1437 | struct dtv_property *tvp, | |
1438 | struct inode *inode, | |
1439 | struct file *file) | |
6b73eeaf ST |
1440 | { |
1441 | int r = 0; | |
13c97bf5 | 1442 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
56f0680a | 1443 | dtv_property_dump(tvp); |
6b73eeaf | 1444 | |
bfbf2dae ST |
1445 | /* Allow the frontend to validate incoming properties */ |
1446 | if (fe->ops.set_property) | |
1447 | r = fe->ops.set_property(fe, tvp); | |
1448 | ||
1449 | if (r < 0) | |
1450 | return r; | |
1451 | ||
6b73eeaf | 1452 | switch(tvp->cmd) { |
e7fee0f3 | 1453 | case DTV_CLEAR: |
6b73eeaf ST |
1454 | /* Reset a cache of data specific to the frontend here. This does |
1455 | * not effect hardware. | |
1456 | */ | |
b6e760f3 | 1457 | dvb_frontend_clear_cache(fe); |
a1bc84c0 | 1458 | dprintk("%s() Flushing property cache\n", __func__); |
6b73eeaf | 1459 | break; |
e7fee0f3 | 1460 | case DTV_TUNE: |
6b73eeaf | 1461 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1462 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1463 | * ioctl. | |
6b73eeaf | 1464 | */ |
e7fee0f3 | 1465 | fe->dtv_property_cache.state = tvp->cmd; |
a1bc84c0 | 1466 | dprintk("%s() Finalised property cache\n", __func__); |
d5748f10 ST |
1467 | dtv_property_cache_submit(fe); |
1468 | ||
13c97bf5 ST |
1469 | r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND, |
1470 | &fepriv->parameters); | |
6b73eeaf | 1471 | break; |
363429a0 | 1472 | case DTV_FREQUENCY: |
56f0680a | 1473 | fe->dtv_property_cache.frequency = tvp->u.data; |
6b73eeaf | 1474 | break; |
363429a0 | 1475 | case DTV_MODULATION: |
56f0680a | 1476 | fe->dtv_property_cache.modulation = tvp->u.data; |
6b73eeaf | 1477 | break; |
75b7f943 ST |
1478 | case DTV_BANDWIDTH_HZ: |
1479 | fe->dtv_property_cache.bandwidth_hz = tvp->u.data; | |
6b73eeaf | 1480 | break; |
363429a0 | 1481 | case DTV_INVERSION: |
56f0680a | 1482 | fe->dtv_property_cache.inversion = tvp->u.data; |
6b73eeaf | 1483 | break; |
363429a0 | 1484 | case DTV_SYMBOL_RATE: |
56f0680a | 1485 | fe->dtv_property_cache.symbol_rate = tvp->u.data; |
6b73eeaf | 1486 | break; |
363429a0 | 1487 | case DTV_INNER_FEC: |
56f0680a | 1488 | fe->dtv_property_cache.fec_inner = tvp->u.data; |
6b73eeaf | 1489 | break; |
363429a0 | 1490 | case DTV_PILOT: |
56f0680a | 1491 | fe->dtv_property_cache.pilot = tvp->u.data; |
6b73eeaf | 1492 | break; |
363429a0 | 1493 | case DTV_ROLLOFF: |
56f0680a | 1494 | fe->dtv_property_cache.rolloff = tvp->u.data; |
6b73eeaf | 1495 | break; |
363429a0 | 1496 | case DTV_DELIVERY_SYSTEM: |
56f0680a | 1497 | fe->dtv_property_cache.delivery_system = tvp->u.data; |
6b73eeaf | 1498 | break; |
363429a0 | 1499 | case DTV_VOLTAGE: |
56f0680a | 1500 | fe->dtv_property_cache.voltage = tvp->u.data; |
13c97bf5 | 1501 | r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_VOLTAGE, |
56f0680a | 1502 | (void *)fe->dtv_property_cache.voltage); |
13c97bf5 | 1503 | break; |
363429a0 | 1504 | case DTV_TONE: |
56f0680a | 1505 | fe->dtv_property_cache.sectone = tvp->u.data; |
13c97bf5 | 1506 | r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_TONE, |
56f0680a | 1507 | (void *)fe->dtv_property_cache.sectone); |
13c97bf5 | 1508 | break; |
a4de91be ST |
1509 | case DTV_CODE_RATE_HP: |
1510 | fe->dtv_property_cache.code_rate_HP = tvp->u.data; | |
1511 | break; | |
1512 | case DTV_CODE_RATE_LP: | |
1513 | fe->dtv_property_cache.code_rate_LP = tvp->u.data; | |
1514 | break; | |
b87625f0 ST |
1515 | case DTV_GUARD_INTERVAL: |
1516 | fe->dtv_property_cache.guard_interval = tvp->u.data; | |
1517 | break; | |
1518 | case DTV_TRANSMISSION_MODE: | |
1519 | fe->dtv_property_cache.transmission_mode = tvp->u.data; | |
1520 | break; | |
ef526f42 ST |
1521 | case DTV_HIERARCHY: |
1522 | fe->dtv_property_cache.hierarchy = tvp->u.data; | |
1523 | break; | |
b6e760f3 PB |
1524 | |
1525 | /* ISDB-T Support here */ | |
1526 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
1527 | fe->dtv_property_cache.isdbt_partial_reception = tvp->u.data; | |
1528 | break; | |
1529 | case DTV_ISDBT_SOUND_BROADCASTING: | |
1530 | fe->dtv_property_cache.isdbt_sb_mode = tvp->u.data; | |
1531 | break; | |
1532 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
1533 | fe->dtv_property_cache.isdbt_sb_subchannel = tvp->u.data; | |
1534 | break; | |
1535 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
1536 | fe->dtv_property_cache.isdbt_sb_segment_idx = tvp->u.data; | |
1537 | break; | |
1538 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
1539 | fe->dtv_property_cache.isdbt_sb_segment_count = tvp->u.data; | |
1540 | break; | |
e7b7949a PB |
1541 | case DTV_ISDBT_LAYER_ENABLED: |
1542 | fe->dtv_property_cache.isdbt_layer_enabled = tvp->u.data; | |
1543 | break; | |
b6e760f3 PB |
1544 | case DTV_ISDBT_LAYERA_FEC: |
1545 | fe->dtv_property_cache.layer[0].fec = tvp->u.data; | |
1546 | break; | |
1547 | case DTV_ISDBT_LAYERA_MODULATION: | |
1548 | fe->dtv_property_cache.layer[0].modulation = tvp->u.data; | |
1549 | break; | |
1550 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
1551 | fe->dtv_property_cache.layer[0].segment_count = tvp->u.data; | |
1552 | break; | |
1553 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
1554 | fe->dtv_property_cache.layer[0].interleaving = tvp->u.data; | |
1555 | break; | |
1556 | case DTV_ISDBT_LAYERB_FEC: | |
1557 | fe->dtv_property_cache.layer[1].fec = tvp->u.data; | |
1558 | break; | |
1559 | case DTV_ISDBT_LAYERB_MODULATION: | |
1560 | fe->dtv_property_cache.layer[1].modulation = tvp->u.data; | |
1561 | break; | |
1562 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
1563 | fe->dtv_property_cache.layer[1].segment_count = tvp->u.data; | |
1564 | break; | |
1565 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
1566 | fe->dtv_property_cache.layer[1].interleaving = tvp->u.data; | |
1567 | break; | |
1568 | case DTV_ISDBT_LAYERC_FEC: | |
1569 | fe->dtv_property_cache.layer[2].fec = tvp->u.data; | |
1570 | break; | |
1571 | case DTV_ISDBT_LAYERC_MODULATION: | |
1572 | fe->dtv_property_cache.layer[2].modulation = tvp->u.data; | |
1573 | break; | |
1574 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
1575 | fe->dtv_property_cache.layer[2].segment_count = tvp->u.data; | |
1576 | break; | |
1577 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
1578 | fe->dtv_property_cache.layer[2].interleaving = tvp->u.data; | |
1579 | break; | |
98293ef3 HT |
1580 | case DTV_ISDBS_TS_ID: |
1581 | fe->dtv_property_cache.isdbs_ts_id = tvp->u.data; | |
1582 | break; | |
363429a0 ST |
1583 | default: |
1584 | r = -1; | |
6b73eeaf ST |
1585 | } |
1586 | ||
13c97bf5 | 1587 | return r; |
6b73eeaf ST |
1588 | } |
1589 | ||
1da177e4 LT |
1590 | static int dvb_frontend_ioctl(struct inode *inode, struct file *file, |
1591 | unsigned int cmd, void *parg) | |
1592 | { | |
1593 | struct dvb_device *dvbdev = file->private_data; | |
1594 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 1595 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
1596 | int err = -EOPNOTSUPP; |
1597 | ||
46b4f7c1 | 1598 | dprintk ("%s\n", __func__); |
1da177e4 | 1599 | |
813ce47c | 1600 | if (fepriv->exit) |
1da177e4 LT |
1601 | return -ENODEV; |
1602 | ||
1603 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1604 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
1605 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) | |
1606 | return -EPERM; | |
1607 | ||
1608 | if (down_interruptible (&fepriv->sem)) | |
1609 | return -ERESTARTSYS; | |
1610 | ||
13c97bf5 ST |
1611 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
1612 | err = dvb_frontend_ioctl_properties(inode, file, cmd, parg); | |
4dd88bec ST |
1613 | else { |
1614 | fe->dtv_property_cache.state = DTV_UNDEFINED; | |
13c97bf5 | 1615 | err = dvb_frontend_ioctl_legacy(inode, file, cmd, parg); |
4dd88bec | 1616 | } |
13c97bf5 ST |
1617 | |
1618 | up(&fepriv->sem); | |
1619 | return err; | |
1620 | } | |
1621 | ||
1622 | static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, | |
1623 | unsigned int cmd, void *parg) | |
1624 | { | |
1625 | struct dvb_device *dvbdev = file->private_data; | |
1626 | struct dvb_frontend *fe = dvbdev->priv; | |
e6f9ec86 | 1627 | int err = 0; |
e7fee0f3 ST |
1628 | |
1629 | struct dtv_properties *tvps = NULL; | |
1630 | struct dtv_property *tvp = NULL; | |
1631 | int i; | |
13c97bf5 ST |
1632 | |
1633 | dprintk("%s\n", __func__); | |
1634 | ||
6b73eeaf | 1635 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1636 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1637 | |
a1bc84c0 ST |
1638 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1639 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1640 | |
1641 | /* Put an arbitrary limit on the number of messages that can | |
1642 | * be sent at once */ | |
6068f506 | 1643 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1644 | return -EINVAL; |
1645 | ||
1646 | tvp = (struct dtv_property *) kmalloc(tvps->num * | |
1647 | sizeof(struct dtv_property), GFP_KERNEL); | |
1648 | if (!tvp) { | |
1649 | err = -ENOMEM; | |
1650 | goto out; | |
6b73eeaf ST |
1651 | } |
1652 | ||
e7fee0f3 ST |
1653 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1654 | err = -EFAULT; | |
1655 | goto out; | |
1656 | } | |
1657 | ||
d48cb402 ST |
1658 | for (i = 0; i < tvps->num; i++) { |
1659 | (tvp + i)->result = dtv_property_process_set(fe, tvp + i, inode, file); | |
1660 | err |= (tvp + i)->result; | |
1661 | } | |
e7fee0f3 | 1662 | |
a1bc84c0 ST |
1663 | if(fe->dtv_property_cache.state == DTV_TUNE) |
1664 | dprintk("%s() Property cache is full, tuning\n", __func__); | |
bfbf2dae | 1665 | |
363429a0 ST |
1666 | } else |
1667 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1668 | |
1669 | tvps = (struct dtv_properties __user *)parg; | |
1670 | ||
a1bc84c0 ST |
1671 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1672 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1673 | |
1674 | /* Put an arbitrary limit on the number of messages that can | |
1675 | * be sent at once */ | |
6068f506 | 1676 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1677 | return -EINVAL; |
1678 | ||
1679 | tvp = (struct dtv_property *) kmalloc(tvps->num * | |
1680 | sizeof(struct dtv_property), GFP_KERNEL); | |
1681 | if (!tvp) { | |
1682 | err = -ENOMEM; | |
1683 | goto out; | |
1684 | } | |
1685 | ||
1686 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1687 | err = -EFAULT; | |
1688 | goto out; | |
1689 | } | |
1690 | ||
d48cb402 ST |
1691 | for (i = 0; i < tvps->num; i++) { |
1692 | (tvp + i)->result = dtv_property_process_get(fe, tvp + i, inode, file); | |
1693 | err |= (tvp + i)->result; | |
1694 | } | |
363429a0 ST |
1695 | |
1696 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
1697 | err = -EFAULT; | |
1698 | goto out; | |
1699 | } | |
1700 | ||
363429a0 ST |
1701 | } else |
1702 | err = -EOPNOTSUPP; | |
1703 | ||
e7fee0f3 ST |
1704 | out: |
1705 | kfree(tvp); | |
13c97bf5 ST |
1706 | return err; |
1707 | } | |
1708 | ||
1709 | static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file, | |
1710 | unsigned int cmd, void *parg) | |
1711 | { | |
1712 | struct dvb_device *dvbdev = file->private_data; | |
1713 | struct dvb_frontend *fe = dvbdev->priv; | |
1714 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
9133aee0 MK |
1715 | int cb_err, err = -EOPNOTSUPP; |
1716 | ||
1717 | if (fe->dvb->fe_ioctl_override) { | |
1718 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1719 | DVB_FE_IOCTL_PRE); | |
1720 | if (cb_err < 0) | |
1721 | return cb_err; | |
1722 | if (cb_err > 0) | |
1723 | return 0; | |
1724 | /* fe_ioctl_override returning 0 allows | |
1725 | * dvb-core to continue handling the ioctl */ | |
1726 | } | |
13c97bf5 | 1727 | |
1da177e4 LT |
1728 | switch (cmd) { |
1729 | case FE_GET_INFO: { | |
0c53c70f | 1730 | struct dvb_frontend_info* info = parg; |
dea74869 | 1731 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
c471b331 | 1732 | dvb_frontend_get_frequeny_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 LT |
1733 | |
1734 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't | |
1735 | * do it, it is done for it. */ | |
1736 | info->caps |= FE_CAN_INVERSION_AUTO; | |
1737 | err = 0; | |
1738 | break; | |
1739 | } | |
1740 | ||
6757ccc5 PB |
1741 | case FE_READ_STATUS: { |
1742 | fe_status_t* status = parg; | |
1743 | ||
1744 | /* if retune was requested but hasn't occured yet, prevent | |
1745 | * that user get signal state from previous tuning */ | |
01886255 JG |
1746 | if (fepriv->state == FESTATE_RETUNE || |
1747 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
1748 | err=0; |
1749 | *status = 0; | |
1750 | break; | |
1751 | } | |
1752 | ||
dea74869 PB |
1753 | if (fe->ops.read_status) |
1754 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 1755 | break; |
6757ccc5 | 1756 | } |
1da177e4 | 1757 | case FE_READ_BER: |
dea74869 PB |
1758 | if (fe->ops.read_ber) |
1759 | err = fe->ops.read_ber(fe, (__u32*) parg); | |
1da177e4 LT |
1760 | break; |
1761 | ||
1762 | case FE_READ_SIGNAL_STRENGTH: | |
dea74869 PB |
1763 | if (fe->ops.read_signal_strength) |
1764 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); | |
1da177e4 LT |
1765 | break; |
1766 | ||
1767 | case FE_READ_SNR: | |
dea74869 PB |
1768 | if (fe->ops.read_snr) |
1769 | err = fe->ops.read_snr(fe, (__u16*) parg); | |
1da177e4 LT |
1770 | break; |
1771 | ||
1772 | case FE_READ_UNCORRECTED_BLOCKS: | |
dea74869 PB |
1773 | if (fe->ops.read_ucblocks) |
1774 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); | |
1da177e4 LT |
1775 | break; |
1776 | ||
1777 | ||
1778 | case FE_DISEQC_RESET_OVERLOAD: | |
dea74869 PB |
1779 | if (fe->ops.diseqc_reset_overload) { |
1780 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
1781 | fepriv->state = FESTATE_DISEQC; |
1782 | fepriv->status = 0; | |
1783 | } | |
1784 | break; | |
1785 | ||
1786 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
1787 | if (fe->ops.diseqc_send_master_cmd) { |
1788 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
1789 | fepriv->state = FESTATE_DISEQC; |
1790 | fepriv->status = 0; | |
1791 | } | |
1792 | break; | |
1793 | ||
1794 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
1795 | if (fe->ops.diseqc_send_burst) { |
1796 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
1797 | fepriv->state = FESTATE_DISEQC; |
1798 | fepriv->status = 0; | |
1799 | } | |
1800 | break; | |
1801 | ||
1802 | case FE_SET_TONE: | |
dea74869 PB |
1803 | if (fe->ops.set_tone) { |
1804 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 1805 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
1806 | fepriv->state = FESTATE_DISEQC; |
1807 | fepriv->status = 0; | |
1808 | } | |
1809 | break; | |
1810 | ||
1811 | case FE_SET_VOLTAGE: | |
dea74869 PB |
1812 | if (fe->ops.set_voltage) { |
1813 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 1814 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
1815 | fepriv->state = FESTATE_DISEQC; |
1816 | fepriv->status = 0; | |
1817 | } | |
1818 | break; | |
1819 | ||
1820 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
1821 | if (fe->ops.dishnetwork_send_legacy_command) { |
1822 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
1823 | fepriv->state = FESTATE_DISEQC; |
1824 | fepriv->status = 0; | |
dea74869 | 1825 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
1826 | /* |
1827 | * NOTE: This is a fallback condition. Some frontends | |
1828 | * (stv0299 for instance) take longer than 8msec to | |
1829 | * respond to a set_voltage command. Those switches | |
1830 | * need custom routines to switch properly. For all | |
1831 | * other frontends, the following shoule work ok. | |
1832 | * Dish network legacy switches (as used by Dish500) | |
1833 | * are controlled by sending 9-bit command words | |
1834 | * spaced 8msec apart. | |
1835 | * the actual command word is switch/port dependant | |
1836 | * so it is up to the userspace application to send | |
1837 | * the right command. | |
1838 | * The command must always start with a '0' after | |
1839 | * initialization, so parg is 8 bits and does not | |
1840 | * include the initialization or start bit | |
1841 | */ | |
c6eb8eaf | 1842 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
1843 | struct timeval nexttime; |
1844 | struct timeval tv[10]; | |
1845 | int i; | |
1846 | u8 last = 1; | |
1847 | if (dvb_frontend_debug) | |
c6eb8eaf | 1848 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
1849 | do_gettimeofday(&nexttime); |
1850 | if (dvb_frontend_debug) | |
1851 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); | |
1852 | /* before sending a command, initialize by sending | |
1853 | * a 32ms 18V to the switch | |
1854 | */ | |
dea74869 | 1855 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
1856 | dvb_frontend_sleep_until(&nexttime, 32000); |
1857 | ||
1858 | for (i = 0; i < 9; i++) { | |
1859 | if (dvb_frontend_debug) | |
1860 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 1861 | if ((swcmd & 0x01) != last) { |
83b75b04 | 1862 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 1863 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
1864 | last = (last) ? 0 : 1; |
1865 | } | |
c6eb8eaf | 1866 | swcmd = swcmd >> 1; |
83b75b04 N |
1867 | if (i != 8) |
1868 | dvb_frontend_sleep_until(&nexttime, 8000); | |
1869 | } | |
1870 | if (dvb_frontend_debug) { | |
1871 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 1872 | __func__, fe->dvb->num); |
83b75b04 N |
1873 | for (i = 1; i < 10; i++) |
1874 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
1875 | } | |
1876 | err = 0; | |
1877 | fepriv->state = FESTATE_DISEQC; | |
1878 | fepriv->status = 0; | |
1da177e4 LT |
1879 | } |
1880 | break; | |
1881 | ||
1882 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
1883 | if (fe->ops.diseqc_recv_slave_reply) |
1884 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
1885 | break; |
1886 | ||
1887 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
1888 | if (fe->ops.enable_high_lnb_voltage) |
1889 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
1890 | break; |
1891 | ||
1892 | case FE_SET_FRONTEND: { | |
1893 | struct dvb_frontend_tune_settings fetunesettings; | |
1894 | ||
e7fee0f3 | 1895 | if(fe->dtv_property_cache.state == DTV_TUNE) { |
6b73eeaf ST |
1896 | if (dvb_frontend_check_parameters(fe, &fepriv->parameters) < 0) { |
1897 | err = -EINVAL; | |
1898 | break; | |
1899 | } | |
1900 | } else { | |
1901 | if (dvb_frontend_check_parameters(fe, parg) < 0) { | |
1902 | err = -EINVAL; | |
1903 | break; | |
1904 | } | |
1fab46f0 | 1905 | |
6b73eeaf ST |
1906 | memcpy (&fepriv->parameters, parg, |
1907 | sizeof (struct dvb_frontend_parameters)); | |
1d78cac4 | 1908 | dtv_property_cache_sync(fe, &fepriv->parameters); |
6b73eeaf | 1909 | } |
1da177e4 LT |
1910 | |
1911 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); | |
1912 | memcpy(&fetunesettings.parameters, parg, | |
1913 | sizeof (struct dvb_frontend_parameters)); | |
1914 | ||
1915 | /* force auto frequency inversion if requested */ | |
1916 | if (dvb_force_auto_inversion) { | |
1917 | fepriv->parameters.inversion = INVERSION_AUTO; | |
1918 | fetunesettings.parameters.inversion = INVERSION_AUTO; | |
1919 | } | |
dea74869 | 1920 | if (fe->ops.info.type == FE_OFDM) { |
1b3c3714 | 1921 | /* without hierarchical coding code_rate_LP is irrelevant, |
1da177e4 LT |
1922 | * so we tolerate the otherwise invalid FEC_NONE setting */ |
1923 | if (fepriv->parameters.u.ofdm.hierarchy_information == HIERARCHY_NONE && | |
1924 | fepriv->parameters.u.ofdm.code_rate_LP == FEC_NONE) | |
1925 | fepriv->parameters.u.ofdm.code_rate_LP = FEC_AUTO; | |
1926 | } | |
1927 | ||
1928 | /* get frontend-specific tuning settings */ | |
dea74869 | 1929 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
1da177e4 LT |
1930 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; |
1931 | fepriv->max_drift = fetunesettings.max_drift; | |
1932 | fepriv->step_size = fetunesettings.step_size; | |
1933 | } else { | |
1934 | /* default values */ | |
dea74869 | 1935 | switch(fe->ops.info.type) { |
1da177e4 LT |
1936 | case FE_QPSK: |
1937 | fepriv->min_delay = HZ/20; | |
1938 | fepriv->step_size = fepriv->parameters.u.qpsk.symbol_rate / 16000; | |
1939 | fepriv->max_drift = fepriv->parameters.u.qpsk.symbol_rate / 2000; | |
1940 | break; | |
1941 | ||
1942 | case FE_QAM: | |
1943 | fepriv->min_delay = HZ/20; | |
1944 | fepriv->step_size = 0; /* no zigzag */ | |
1945 | fepriv->max_drift = 0; | |
1946 | break; | |
1947 | ||
1948 | case FE_OFDM: | |
1949 | fepriv->min_delay = HZ/20; | |
dea74869 PB |
1950 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
1951 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
1da177e4 LT |
1952 | break; |
1953 | case FE_ATSC: | |
4821fb1d MA |
1954 | fepriv->min_delay = HZ/20; |
1955 | fepriv->step_size = 0; | |
1956 | fepriv->max_drift = 0; | |
1da177e4 LT |
1957 | break; |
1958 | } | |
1959 | } | |
1960 | if (dvb_override_tune_delay > 0) | |
1961 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
1962 | ||
1963 | fepriv->state = FESTATE_RETUNE; | |
1d06059c IL |
1964 | |
1965 | /* Request the search algorithm to search */ | |
1966 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
1967 | ||
1da177e4 LT |
1968 | dvb_frontend_wakeup(fe); |
1969 | dvb_frontend_add_event(fe, 0); | |
1970 | fepriv->status = 0; | |
1971 | err = 0; | |
1972 | break; | |
1973 | } | |
1974 | ||
1975 | case FE_GET_EVENT: | |
1976 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
1977 | break; | |
1978 | ||
1979 | case FE_GET_FRONTEND: | |
dea74869 | 1980 | if (fe->ops.get_frontend) { |
1da177e4 | 1981 | memcpy (parg, &fepriv->parameters, sizeof (struct dvb_frontend_parameters)); |
dea74869 | 1982 | err = fe->ops.get_frontend(fe, (struct dvb_frontend_parameters*) parg); |
1da177e4 LT |
1983 | } |
1984 | break; | |
36cb557a AQ |
1985 | |
1986 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 1987 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 1988 | err = 0; |
36cb557a | 1989 | break; |
1da177e4 LT |
1990 | }; |
1991 | ||
9133aee0 MK |
1992 | if (fe->dvb->fe_ioctl_override) { |
1993 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1994 | DVB_FE_IOCTL_POST); | |
1995 | if (cb_err < 0) | |
1996 | return cb_err; | |
1997 | } | |
1998 | ||
1da177e4 LT |
1999 | return err; |
2000 | } | |
2001 | ||
6b73eeaf | 2002 | |
1da177e4 LT |
2003 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2004 | { | |
2005 | struct dvb_device *dvbdev = file->private_data; | |
2006 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2007 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2008 | |
46b4f7c1 | 2009 | dprintk ("%s\n", __func__); |
1da177e4 LT |
2010 | |
2011 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2012 | ||
2013 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2014 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2015 | ||
2016 | return 0; | |
2017 | } | |
2018 | ||
2019 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2020 | { | |
2021 | struct dvb_device *dvbdev = file->private_data; | |
2022 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2023 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2024 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2025 | int ret; |
2026 | ||
46b4f7c1 | 2027 | dprintk ("%s\n", __func__); |
1da177e4 | 2028 | |
59b1842d DB |
2029 | if (adapter->mfe_shared) { |
2030 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2031 | |
2032 | if (adapter->mfe_dvbdev == NULL) | |
2033 | adapter->mfe_dvbdev = dvbdev; | |
2034 | ||
2035 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2036 | struct dvb_device | |
2037 | *mfedev = adapter->mfe_dvbdev; | |
2038 | struct dvb_frontend | |
2039 | *mfe = mfedev->priv; | |
2040 | struct dvb_frontend_private | |
2041 | *mfepriv = mfe->frontend_priv; | |
2042 | int mferetry = (dvb_mfe_wait_time << 1); | |
2043 | ||
2044 | mutex_unlock (&adapter->mfe_lock); | |
2045 | while (mferetry-- && (mfedev->users != -1 || | |
2046 | mfepriv->thread != NULL)) { | |
2047 | if(msleep_interruptible(500)) { | |
2048 | if(signal_pending(current)) | |
2049 | return -EINTR; | |
59b1842d | 2050 | } |
6594690b DB |
2051 | } |
2052 | ||
2053 | mutex_lock (&adapter->mfe_lock); | |
2054 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2055 | mfedev = adapter->mfe_dvbdev; |
2056 | mfe = mfedev->priv; | |
2057 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2058 | if (mfedev->users != -1 || |
2059 | mfepriv->thread != NULL) { | |
2060 | mutex_unlock (&adapter->mfe_lock); | |
2061 | return -EBUSY; | |
59b1842d | 2062 | } |
6594690b | 2063 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2064 | } |
59b1842d DB |
2065 | } |
2066 | } | |
2067 | ||
48136e1e OE |
2068 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2069 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2070 | goto err0; |
ba7e6f3e ST |
2071 | } |
2072 | ||
48136e1e OE |
2073 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2074 | goto err1; | |
04c56d0e | 2075 | |
48136e1e | 2076 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2077 | /* normal tune mode when opened R/W */ |
2078 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2079 | fepriv->tone = -1; | |
2080 | fepriv->voltage = -1; | |
2081 | ||
1da177e4 LT |
2082 | ret = dvb_frontend_start (fe); |
2083 | if (ret) | |
48136e1e | 2084 | goto err2; |
1da177e4 LT |
2085 | |
2086 | /* empty event queue */ | |
2087 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2088 | } | |
2089 | ||
59b1842d DB |
2090 | if (adapter->mfe_shared) |
2091 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2092 | return ret; |
48136e1e OE |
2093 | |
2094 | err2: | |
2095 | dvb_generic_release(inode, file); | |
2096 | err1: | |
2097 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2098 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2099 | err0: |
2100 | if (adapter->mfe_shared) | |
2101 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2102 | return ret; |
1da177e4 LT |
2103 | } |
2104 | ||
2105 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2106 | { | |
2107 | struct dvb_device *dvbdev = file->private_data; | |
2108 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2109 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2110 | int ret; |
1da177e4 | 2111 | |
46b4f7c1 | 2112 | dprintk ("%s\n", __func__); |
1da177e4 LT |
2113 | |
2114 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) | |
2115 | fepriv->release_jiffies = jiffies; | |
2116 | ||
ca5be9cd MR |
2117 | ret = dvb_generic_release (inode, file); |
2118 | ||
48136e1e OE |
2119 | if (dvbdev->users == -1) { |
2120 | if (fepriv->exit == 1) { | |
2121 | fops_put(file->f_op); | |
2122 | file->f_op = NULL; | |
2123 | wake_up(&dvbdev->wait_queue); | |
2124 | } | |
2125 | if (fe->ops.ts_bus_ctrl) | |
2126 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2127 | } |
48136e1e | 2128 | |
ca5be9cd | 2129 | return ret; |
1da177e4 LT |
2130 | } |
2131 | ||
784e29d2 | 2132 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 LT |
2133 | .owner = THIS_MODULE, |
2134 | .ioctl = dvb_generic_ioctl, | |
2135 | .poll = dvb_frontend_poll, | |
2136 | .open = dvb_frontend_open, | |
2137 | .release = dvb_frontend_release | |
2138 | }; | |
2139 | ||
2140 | int dvb_register_frontend(struct dvb_adapter* dvb, | |
2141 | struct dvb_frontend* fe) | |
2142 | { | |
2143 | struct dvb_frontend_private *fepriv; | |
2144 | static const struct dvb_device dvbdev_template = { | |
2145 | .users = ~0, | |
2146 | .writers = 1, | |
2147 | .readers = (~0)-1, | |
2148 | .fops = &dvb_frontend_fops, | |
2149 | .kernel_ioctl = dvb_frontend_ioctl | |
2150 | }; | |
2151 | ||
46b4f7c1 | 2152 | dprintk ("%s\n", __func__); |
1da177e4 | 2153 | |
3593cab5 | 2154 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2155 | return -ERESTARTSYS; |
2156 | ||
7408187d | 2157 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2158 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2159 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2160 | return -ENOMEM; |
2161 | } | |
0c53c70f | 2162 | fepriv = fe->frontend_priv; |
1da177e4 LT |
2163 | |
2164 | init_MUTEX (&fepriv->sem); | |
2165 | init_waitqueue_head (&fepriv->wait_queue); | |
2166 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2167 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2168 | fe->dvb = dvb; |
2169 | fepriv->inversion = INVERSION_OFF; | |
2170 | ||
363c35fc | 2171 | printk ("DVB: registering adapter %i frontend %i (%s)...\n", |
1da177e4 | 2172 | fe->dvb->num, |
363c35fc | 2173 | fe->id, |
dea74869 | 2174 | fe->ops.info.name); |
1da177e4 LT |
2175 | |
2176 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2177 | fe, DVB_DEVICE_FRONTEND); | |
2178 | ||
3593cab5 | 2179 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2180 | return 0; |
2181 | } | |
2182 | EXPORT_SYMBOL(dvb_register_frontend); | |
2183 | ||
2184 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2185 | { | |
0c53c70f | 2186 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
46b4f7c1 | 2187 | dprintk ("%s\n", __func__); |
1da177e4 | 2188 | |
57861b43 | 2189 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2190 | dvb_frontend_stop (fe); |
57861b43 MR |
2191 | mutex_unlock(&frontend_mutex); |
2192 | ||
2193 | if (fepriv->dvbdev->users < -1) | |
2194 | wait_event(fepriv->dvbdev->wait_queue, | |
2195 | fepriv->dvbdev->users==-1); | |
2196 | ||
3593cab5 | 2197 | mutex_lock(&frontend_mutex); |
1da177e4 | 2198 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2199 | |
1da177e4 LT |
2200 | /* fe is invalid now */ |
2201 | kfree(fepriv); | |
3593cab5 | 2202 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2203 | return 0; |
2204 | } | |
2205 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2206 | |
149ef72d | 2207 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2208 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2209 | { | |
2210 | void *ptr; | |
2211 | ||
2212 | if (fe->ops.release_sec) { | |
2213 | fe->ops.release_sec(fe); | |
2214 | symbol_put_addr(fe->ops.release_sec); | |
2215 | } | |
2216 | if (fe->ops.tuner_ops.release) { | |
2217 | fe->ops.tuner_ops.release(fe); | |
2218 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2219 | } | |
2426a27e MK |
2220 | if (fe->ops.analog_ops.release) { |
2221 | fe->ops.analog_ops.release(fe); | |
2222 | symbol_put_addr(fe->ops.analog_ops.release); | |
2223 | } | |
f52a838b AQ |
2224 | ptr = (void*)fe->ops.release; |
2225 | if (ptr) { | |
2226 | fe->ops.release(fe); | |
2227 | symbol_put_addr(ptr); | |
2228 | } | |
2229 | } | |
2230 | #else | |
2231 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2232 | { | |
2233 | if (fe->ops.release_sec) | |
2234 | fe->ops.release_sec(fe); | |
2235 | if (fe->ops.tuner_ops.release) | |
2236 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2237 | if (fe->ops.analog_ops.release) |
2238 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2239 | if (fe->ops.release) |
2240 | fe->ops.release(fe); | |
2241 | } | |
2242 | #endif | |
2243 | EXPORT_SYMBOL(dvb_frontend_detach); |