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