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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 | ||
e36309f5 MC |
98 | #define DVB_FE_NO_EXIT 0 |
99 | #define DVB_FE_NORMAL_EXIT 1 | |
100 | #define DVB_FE_DEVICE_REMOVED 2 | |
101 | ||
3593cab5 | 102 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
103 | |
104 | struct dvb_frontend_private { | |
105 | ||
36cb557a | 106 | /* thread/frontend values */ |
1da177e4 | 107 | struct dvb_device *dvbdev; |
61cb27af | 108 | struct dvb_frontend_parameters parameters_in; |
a5959dbe | 109 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
110 | struct dvb_fe_events events; |
111 | struct semaphore sem; | |
112 | struct list_head list_head; | |
113 | wait_queue_head_t wait_queue; | |
8eec1429 | 114 | struct task_struct *thread; |
1da177e4 | 115 | unsigned long release_jiffies; |
36cb557a AQ |
116 | unsigned int exit; |
117 | unsigned int wakeup; | |
1da177e4 | 118 | fe_status_t status; |
400b7083 | 119 | unsigned long tune_mode_flags; |
36cb557a | 120 | unsigned int delay; |
86f40cc3 | 121 | unsigned int reinitialise; |
64454016 AQ |
122 | int tone; |
123 | int voltage; | |
36cb557a AQ |
124 | |
125 | /* swzigzag values */ | |
126 | unsigned int state; | |
127 | unsigned int bending; | |
128 | int lnb_drift; | |
129 | unsigned int inversion; | |
130 | unsigned int auto_step; | |
131 | unsigned int auto_sub_step; | |
132 | unsigned int started_auto_step; | |
133 | unsigned int min_delay; | |
134 | unsigned int max_drift; | |
135 | unsigned int step_size; | |
136 | int quality; | |
137 | unsigned int check_wrapped; | |
c59e7870 | 138 | enum dvbfe_search algo_status; |
1da177e4 LT |
139 | }; |
140 | ||
86f40cc3 | 141 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
1da177e4 LT |
142 | |
143 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) | |
144 | { | |
0c53c70f | 145 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
146 | struct dvb_fe_events *events = &fepriv->events; |
147 | struct dvb_frontend_event *e; | |
148 | int wp; | |
149 | ||
46b4f7c1 | 150 | dprintk ("%s\n", __func__); |
1da177e4 | 151 | |
03b76123 | 152 | if (mutex_lock_interruptible (&events->mtx)) |
1da177e4 LT |
153 | return; |
154 | ||
155 | wp = (events->eventw + 1) % MAX_EVENT; | |
156 | ||
157 | if (wp == events->eventr) { | |
158 | events->overflow = 1; | |
159 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
160 | } | |
161 | ||
162 | e = &events->events[events->eventw]; | |
163 | ||
1da177e4 | 164 | if (status & FE_HAS_LOCK) |
dea74869 | 165 | if (fe->ops.get_frontend) |
a5959dbe AO |
166 | fe->ops.get_frontend(fe, &fepriv->parameters_out); |
167 | ||
168 | e->parameters = fepriv->parameters_out; | |
1da177e4 LT |
169 | |
170 | events->eventw = wp; | |
171 | ||
03b76123 | 172 | mutex_unlock(&events->mtx); |
1da177e4 LT |
173 | |
174 | e->status = status; | |
175 | ||
176 | wake_up_interruptible (&events->wait_queue); | |
177 | } | |
178 | ||
179 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
180 | struct dvb_frontend_event *event, int flags) | |
181 | { | |
0c53c70f | 182 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
183 | struct dvb_fe_events *events = &fepriv->events; |
184 | ||
46b4f7c1 | 185 | dprintk ("%s\n", __func__); |
1da177e4 LT |
186 | |
187 | if (events->overflow) { | |
188 | events->overflow = 0; | |
189 | return -EOVERFLOW; | |
190 | } | |
191 | ||
192 | if (events->eventw == events->eventr) { | |
193 | int ret; | |
194 | ||
195 | if (flags & O_NONBLOCK) | |
196 | return -EWOULDBLOCK; | |
197 | ||
198 | up(&fepriv->sem); | |
199 | ||
200 | ret = wait_event_interruptible (events->wait_queue, | |
201 | events->eventw != events->eventr); | |
202 | ||
203 | if (down_interruptible (&fepriv->sem)) | |
204 | return -ERESTARTSYS; | |
205 | ||
206 | if (ret < 0) | |
207 | return ret; | |
208 | } | |
209 | ||
03b76123 | 210 | if (mutex_lock_interruptible (&events->mtx)) |
1da177e4 LT |
211 | return -ERESTARTSYS; |
212 | ||
213 | memcpy (event, &events->events[events->eventr], | |
214 | sizeof(struct dvb_frontend_event)); | |
215 | ||
216 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
217 | ||
03b76123 | 218 | mutex_unlock(&events->mtx); |
1da177e4 LT |
219 | |
220 | return 0; | |
221 | } | |
222 | ||
223 | static void dvb_frontend_init(struct dvb_frontend *fe) | |
224 | { | |
363c35fc | 225 | dprintk ("DVB: initialising adapter %i frontend %i (%s)...\n", |
1da177e4 | 226 | fe->dvb->num, |
363c35fc | 227 | fe->id, |
dea74869 PB |
228 | fe->ops.info.name); |
229 | ||
230 | if (fe->ops.init) | |
231 | fe->ops.init(fe); | |
232 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
233 | if (fe->ops.i2c_gate_ctrl) |
234 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
235 | fe->ops.tuner_ops.init(fe); |
236 | if (fe->ops.i2c_gate_ctrl) | |
237 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 238 | } |
1da177e4 LT |
239 | } |
240 | ||
86f40cc3 AQ |
241 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
242 | { | |
243 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
244 | ||
245 | fepriv->reinitialise = 1; | |
246 | dvb_frontend_wakeup(fe); | |
247 | } | |
248 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
249 | ||
36cb557a | 250 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 251 | { |
36cb557a | 252 | int q2; |
1da177e4 | 253 | |
46b4f7c1 | 254 | dprintk ("%s\n", __func__); |
1da177e4 | 255 | |
36cb557a AQ |
256 | if (locked) |
257 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
258 | else | |
259 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 260 | |
36cb557a AQ |
261 | q2 = fepriv->quality - 128; |
262 | q2 *= q2; | |
1da177e4 | 263 | |
36cb557a | 264 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
265 | } |
266 | ||
267 | /** | |
268 | * Performs automatic twiddling of frontend parameters. | |
269 | * | |
270 | * @param fe The frontend concerned. | |
271 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
272 | * @returns Number of complete iterations that have been performed. | |
273 | */ | |
36cb557a | 274 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
275 | { |
276 | int autoinversion; | |
277 | int ready = 0; | |
01886255 | 278 | int fe_set_err = 0; |
0c53c70f | 279 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
61cb27af AO |
280 | int original_inversion = fepriv->parameters_in.inversion; |
281 | u32 original_frequency = fepriv->parameters_in.frequency; | |
1da177e4 LT |
282 | |
283 | /* are we using autoinversion? */ | |
dea74869 | 284 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
61cb27af | 285 | (fepriv->parameters_in.inversion == INVERSION_AUTO)); |
1da177e4 LT |
286 | |
287 | /* setup parameters correctly */ | |
288 | while(!ready) { | |
289 | /* calculate the lnb_drift */ | |
290 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
291 | ||
292 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
293 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
294 | fepriv->auto_step = 0; | |
295 | fepriv->auto_sub_step = 0; | |
296 | fepriv->lnb_drift = 0; | |
297 | } | |
298 | ||
299 | /* perform inversion and +/- zigzag */ | |
300 | switch(fepriv->auto_sub_step) { | |
301 | case 0: | |
302 | /* try with the current inversion and current drift setting */ | |
303 | ready = 1; | |
304 | break; | |
305 | ||
306 | case 1: | |
307 | if (!autoinversion) break; | |
308 | ||
309 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
310 | ready = 1; | |
311 | break; | |
312 | ||
313 | case 2: | |
314 | if (fepriv->lnb_drift == 0) break; | |
315 | ||
316 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
317 | ready = 1; | |
318 | break; | |
319 | ||
320 | case 3: | |
321 | if (fepriv->lnb_drift == 0) break; | |
322 | if (!autoinversion) break; | |
323 | ||
324 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
325 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
326 | ready = 1; | |
327 | break; | |
328 | ||
329 | default: | |
330 | fepriv->auto_step++; | |
331 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
332 | break; | |
333 | } | |
334 | ||
335 | if (!ready) fepriv->auto_sub_step++; | |
336 | } | |
337 | ||
338 | /* if this attempt would hit where we started, indicate a complete | |
339 | * iteration has occurred */ | |
340 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
341 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
342 | return 1; | |
343 | } | |
344 | ||
345 | dprintk("%s: drift:%i inversion:%i auto_step:%i " | |
346 | "auto_sub_step:%i started_auto_step:%i\n", | |
46b4f7c1 | 347 | __func__, fepriv->lnb_drift, fepriv->inversion, |
1da177e4 LT |
348 | fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step); |
349 | ||
350 | /* set the frontend itself */ | |
61cb27af | 351 | fepriv->parameters_in.frequency += fepriv->lnb_drift; |
1da177e4 | 352 | if (autoinversion) |
61cb27af | 353 | fepriv->parameters_in.inversion = fepriv->inversion; |
dea74869 | 354 | if (fe->ops.set_frontend) |
61cb27af | 355 | fe_set_err = fe->ops.set_frontend(fe, &fepriv->parameters_in); |
a5959dbe | 356 | fepriv->parameters_out = fepriv->parameters_in; |
01886255 JG |
357 | if (fe_set_err < 0) { |
358 | fepriv->state = FESTATE_ERROR; | |
359 | return fe_set_err; | |
360 | } | |
1da177e4 | 361 | |
61cb27af AO |
362 | fepriv->parameters_in.frequency = original_frequency; |
363 | fepriv->parameters_in.inversion = original_inversion; | |
1da177e4 LT |
364 | |
365 | fepriv->auto_sub_step++; | |
366 | return 0; | |
367 | } | |
368 | ||
36cb557a AQ |
369 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
370 | { | |
30d9464c | 371 | fe_status_t s = 0; |
01886255 | 372 | int retval = 0; |
36cb557a AQ |
373 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
374 | ||
375 | /* if we've got no parameters, just keep idling */ | |
376 | if (fepriv->state & FESTATE_IDLE) { | |
377 | fepriv->delay = 3*HZ; | |
378 | fepriv->quality = 0; | |
379 | return; | |
380 | } | |
381 | ||
382 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
383 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
384 | if (fepriv->state & FESTATE_RETUNE) { | |
dea74869 | 385 | if (fe->ops.set_frontend) |
01886255 | 386 | retval = fe->ops.set_frontend(fe, |
61cb27af | 387 | &fepriv->parameters_in); |
a5959dbe | 388 | fepriv->parameters_out = fepriv->parameters_in; |
01886255 JG |
389 | if (retval < 0) |
390 | fepriv->state = FESTATE_ERROR; | |
391 | else | |
392 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
393 | } |
394 | fepriv->delay = 3*HZ; | |
395 | fepriv->quality = 0; | |
396 | return; | |
397 | } | |
398 | ||
399 | /* get the frontend status */ | |
400 | if (fepriv->state & FESTATE_RETUNE) { | |
401 | s = 0; | |
402 | } else { | |
dea74869 PB |
403 | if (fe->ops.read_status) |
404 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
405 | if (s != fepriv->status) { |
406 | dvb_frontend_add_event(fe, s); | |
407 | fepriv->status = s; | |
408 | } | |
409 | } | |
410 | ||
411 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
412 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
413 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
414 | fepriv->state = FESTATE_TUNED; | |
415 | ||
416 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 417 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
61cb27af AO |
418 | (fepriv->parameters_in.inversion == INVERSION_AUTO)) { |
419 | fepriv->parameters_in.inversion = fepriv->inversion; | |
36cb557a AQ |
420 | } |
421 | return; | |
422 | } | |
423 | ||
424 | /* if we are tuned already, check we're still locked */ | |
425 | if (fepriv->state & FESTATE_TUNED) { | |
426 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
427 | ||
428 | /* we're tuned, and the lock is still good... */ | |
429 | if (s & FE_HAS_LOCK) { | |
430 | return; | |
431 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
432 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
433 | fepriv->started_auto_step = fepriv->auto_step; | |
434 | fepriv->check_wrapped = 0; | |
435 | } | |
436 | } | |
437 | ||
438 | /* don't actually do anything if we're in the LOSTLOCK state, | |
439 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
440 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 441 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
442 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
443 | return; | |
444 | } | |
445 | ||
446 | /* don't do anything if we're in the DISEQC state, since this | |
447 | * might be someone with a motorized dish controlled by DISEQC. | |
448 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
449 | if (fepriv->state & FESTATE_DISEQC) { | |
450 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
451 | return; | |
452 | } | |
453 | ||
454 | /* if we're in the RETUNE state, set everything up for a brand | |
455 | * new scan, keeping the current inversion setting, as the next | |
456 | * tune is _very_ likely to require the same */ | |
457 | if (fepriv->state & FESTATE_RETUNE) { | |
458 | fepriv->lnb_drift = 0; | |
459 | fepriv->auto_step = 0; | |
460 | fepriv->auto_sub_step = 0; | |
461 | fepriv->started_auto_step = 0; | |
462 | fepriv->check_wrapped = 0; | |
463 | } | |
464 | ||
465 | /* fast zigzag. */ | |
466 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
467 | fepriv->delay = fepriv->min_delay; | |
468 | ||
2030c032 | 469 | /* perform a tune */ |
01886255 JG |
470 | retval = dvb_frontend_swzigzag_autotune(fe, |
471 | fepriv->check_wrapped); | |
472 | if (retval < 0) { | |
473 | return; | |
474 | } else if (retval) { | |
36cb557a AQ |
475 | /* OK, if we've run out of trials at the fast speed. |
476 | * Drop back to slow for the _next_ attempt */ | |
477 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
478 | fepriv->started_auto_step = fepriv->auto_step; | |
479 | return; | |
480 | } | |
481 | fepriv->check_wrapped = 1; | |
482 | ||
483 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
484 | * This ensures we cannot return from an | |
485 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
486 | * occurs */ | |
487 | if (fepriv->state & FESTATE_RETUNE) { | |
488 | fepriv->state = FESTATE_TUNING_FAST; | |
489 | } | |
490 | } | |
491 | ||
492 | /* slow zigzag */ | |
493 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
494 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
495 | ||
496 | /* Note: don't bother checking for wrapping; we stay in this | |
497 | * state until we get a lock */ | |
498 | dvb_frontend_swzigzag_autotune(fe, 0); | |
499 | } | |
500 | } | |
501 | ||
1da177e4 LT |
502 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
503 | { | |
0c53c70f | 504 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 505 | |
e36309f5 | 506 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
507 | return 1; |
508 | ||
509 | if (fepriv->dvbdev->writers == 1) | |
cc89c229 | 510 | if (time_after(jiffies, fepriv->release_jiffies + |
36cb557a | 511 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
512 | return 1; |
513 | ||
514 | return 0; | |
515 | } | |
516 | ||
517 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
518 | { | |
0c53c70f | 519 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
520 | |
521 | if (fepriv->wakeup) { | |
522 | fepriv->wakeup = 0; | |
523 | return 1; | |
524 | } | |
525 | return dvb_frontend_is_exiting(fe); | |
526 | } | |
527 | ||
528 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
529 | { | |
0c53c70f | 530 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
531 | |
532 | fepriv->wakeup = 1; | |
533 | wake_up_interruptible(&fepriv->wait_queue); | |
534 | } | |
535 | ||
1da177e4 LT |
536 | static int dvb_frontend_thread(void *data) |
537 | { | |
0c53c70f JS |
538 | struct dvb_frontend *fe = data; |
539 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 540 | unsigned long timeout; |
1da177e4 | 541 | fe_status_t s; |
c59e7870 MA |
542 | enum dvbfe_algo algo; |
543 | ||
36cb557a | 544 | struct dvb_frontend_parameters *params; |
1da177e4 | 545 | |
46b4f7c1 | 546 | dprintk("%s\n", __func__); |
1da177e4 | 547 | |
36cb557a AQ |
548 | fepriv->check_wrapped = 0; |
549 | fepriv->quality = 0; | |
550 | fepriv->delay = 3*HZ; | |
1da177e4 | 551 | fepriv->status = 0; |
1da177e4 | 552 | fepriv->wakeup = 0; |
04c56d0e AQ |
553 | fepriv->reinitialise = 0; |
554 | ||
555 | dvb_frontend_init(fe); | |
1da177e4 | 556 | |
83144186 | 557 | set_freezable(); |
1da177e4 LT |
558 | while (1) { |
559 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 560 | restart: |
1da177e4 | 561 | timeout = wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
562 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
563 | || freezing(current), | |
8eec1429 HP |
564 | fepriv->delay); |
565 | ||
566 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 567 | /* got signal or quitting */ |
e36309f5 | 568 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
569 | break; |
570 | } | |
571 | ||
8eec1429 | 572 | if (try_to_freeze()) |
6591691b | 573 | goto restart; |
1da177e4 LT |
574 | |
575 | if (down_interruptible(&fepriv->sem)) | |
576 | break; | |
577 | ||
86f40cc3 AQ |
578 | if (fepriv->reinitialise) { |
579 | dvb_frontend_init(fe); | |
64454016 | 580 | if (fepriv->tone != -1) { |
dea74869 | 581 | fe->ops.set_tone(fe, fepriv->tone); |
64454016 AQ |
582 | } |
583 | if (fepriv->voltage != -1) { | |
dea74869 | 584 | fe->ops.set_voltage(fe, fepriv->voltage); |
64454016 | 585 | } |
86f40cc3 AQ |
586 | fepriv->reinitialise = 0; |
587 | } | |
588 | ||
36cb557a | 589 | /* do an iteration of the tuning loop */ |
d772bd03 | 590 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
591 | algo = fe->ops.get_frontend_algo(fe); |
592 | switch (algo) { | |
593 | case DVBFE_ALGO_HW: | |
594 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); | |
595 | params = NULL; /* have we been asked to RETUNE ? */ | |
596 | ||
d772bd03 | 597 | if (fepriv->state & FESTATE_RETUNE) { |
c59e7870 | 598 | dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__); |
61cb27af | 599 | params = &fepriv->parameters_in; |
d772bd03 MA |
600 | fepriv->state = FESTATE_TUNED; |
601 | } | |
602 | ||
c59e7870 MA |
603 | if (fe->ops.tune) |
604 | fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); | |
a5959dbe AO |
605 | if (params) |
606 | fepriv->parameters_out = *params; | |
c59e7870 | 607 | |
2fac9a0f | 608 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
c59e7870 | 609 | dprintk("%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
610 | dvb_frontend_add_event(fe, s); |
611 | fepriv->status = s; | |
612 | } | |
c59e7870 MA |
613 | break; |
614 | case DVBFE_ALGO_SW: | |
615 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); | |
70d90635 | 616 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
617 | break; |
618 | case DVBFE_ALGO_CUSTOM: | |
c59e7870 MA |
619 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
620 | if (fepriv->state & FESTATE_RETUNE) { | |
621 | dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__); | |
622 | fepriv->state = FESTATE_TUNED; | |
623 | } | |
624 | /* Case where we are going to search for a carrier | |
625 | * User asked us to retune again for some reason, possibly | |
626 | * requesting a search with a new set of parameters | |
627 | */ | |
628 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 629 | if (fe->ops.search) { |
61cb27af | 630 | fepriv->algo_status = fe->ops.search(fe, &fepriv->parameters_in); |
c59e7870 MA |
631 | /* We did do a search as was requested, the flags are |
632 | * now unset as well and has the flags wrt to search. | |
633 | */ | |
7bcbdf38 AJ |
634 | } else { |
635 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
636 | } | |
c59e7870 MA |
637 | } |
638 | /* Track the carrier if the search was successful */ | |
639 | if (fepriv->algo_status == DVBFE_ALGO_SEARCH_SUCCESS) { | |
c59e7870 | 640 | if (fe->ops.track) |
61cb27af | 641 | fe->ops.track(fe, &fepriv->parameters_in); |
7bcbdf38 AJ |
642 | } else { |
643 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
644 | fepriv->delay = HZ / 2; | |
645 | } | |
a5959dbe | 646 | fepriv->parameters_out = fepriv->parameters_in; |
7bcbdf38 AJ |
647 | fe->ops.read_status(fe, &s); |
648 | if (s != fepriv->status) { | |
649 | dvb_frontend_add_event(fe, s); /* update event list */ | |
650 | fepriv->status = s; | |
651 | if (!(s & FE_HAS_LOCK)) { | |
652 | fepriv->delay = HZ / 10; | |
653 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
654 | } else { | |
655 | fepriv->delay = 60 * HZ; | |
656 | } | |
c59e7870 MA |
657 | } |
658 | break; | |
659 | default: | |
660 | dprintk("%s: UNDEFINED ALGO !\n", __func__); | |
661 | break; | |
662 | } | |
663 | } else { | |
4a4edcca | 664 | dvb_frontend_swzigzag(fe); |
c59e7870 | 665 | } |
1da177e4 LT |
666 | } |
667 | ||
608f62d6 OE |
668 | if (dvb_powerdown_on_sleep) { |
669 | if (fe->ops.set_voltage) | |
670 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 671 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
672 | if (fe->ops.i2c_gate_ctrl) |
673 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
674 | fe->ops.tuner_ops.sleep(fe); |
675 | if (fe->ops.i2c_gate_ctrl) | |
676 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 677 | } |
dea74869 PB |
678 | if (fe->ops.sleep) |
679 | fe->ops.sleep(fe); | |
1da177e4 LT |
680 | } |
681 | ||
8eec1429 | 682 | fepriv->thread = NULL; |
e36309f5 MC |
683 | if (kthread_should_stop()) |
684 | fepriv->exit = DVB_FE_DEVICE_REMOVED; | |
685 | else | |
686 | fepriv->exit = DVB_FE_NO_EXIT; | |
1da177e4 LT |
687 | mb(); |
688 | ||
689 | dvb_frontend_wakeup(fe); | |
690 | return 0; | |
691 | } | |
692 | ||
693 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
694 | { | |
0c53c70f | 695 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 696 | |
46b4f7c1 | 697 | dprintk ("%s\n", __func__); |
1da177e4 | 698 | |
e36309f5 | 699 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
700 | mb(); |
701 | ||
8eec1429 | 702 | if (!fepriv->thread) |
1da177e4 LT |
703 | return; |
704 | ||
8eec1429 | 705 | kthread_stop(fepriv->thread); |
ca5be9cd | 706 | |
a0a4714c | 707 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
708 | fepriv->state = FESTATE_IDLE; |
709 | ||
710 | /* paranoia check in case a signal arrived */ | |
8eec1429 HP |
711 | if (fepriv->thread) |
712 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", | |
713 | fepriv->thread); | |
1da177e4 LT |
714 | } |
715 | ||
83b75b04 N |
716 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
717 | { | |
718 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
719 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
720 | curtime.tv_usec - lasttime.tv_usec); | |
721 | } | |
722 | EXPORT_SYMBOL(timeval_usec_diff); | |
723 | ||
724 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
725 | { | |
726 | curtime->tv_usec += add_usec; | |
727 | if (curtime->tv_usec >= 1000000) { | |
728 | curtime->tv_usec -= 1000000; | |
729 | curtime->tv_sec++; | |
730 | } | |
731 | } | |
732 | ||
733 | /* | |
734 | * Sleep until gettimeofday() > waketime + add_usec | |
735 | * This needs to be as precise as possible, but as the delay is | |
736 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
737 | * followed by usleep (normally a busy-wait loop) for the remainder | |
738 | */ | |
739 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
740 | { | |
741 | struct timeval lasttime; | |
742 | s32 delta, newdelta; | |
743 | ||
744 | timeval_usec_add(waketime, add_usec); | |
745 | ||
746 | do_gettimeofday(&lasttime); | |
747 | delta = timeval_usec_diff(lasttime, *waketime); | |
748 | if (delta > 2500) { | |
749 | msleep((delta - 1500) / 1000); | |
750 | do_gettimeofday(&lasttime); | |
751 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
752 | delta = (newdelta > delta) ? 0 : newdelta; | |
753 | } | |
754 | if (delta > 0) | |
755 | udelay(delta); | |
756 | } | |
757 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
758 | ||
1da177e4 LT |
759 | static int dvb_frontend_start(struct dvb_frontend *fe) |
760 | { | |
761 | int ret; | |
0c53c70f | 762 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 763 | struct task_struct *fe_thread; |
1da177e4 | 764 | |
46b4f7c1 | 765 | dprintk ("%s\n", __func__); |
1da177e4 | 766 | |
8eec1429 | 767 | if (fepriv->thread) { |
e36309f5 | 768 | if (fepriv->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
769 | return 0; |
770 | else | |
771 | dvb_frontend_stop (fe); | |
772 | } | |
773 | ||
774 | if (signal_pending(current)) | |
775 | return -EINTR; | |
776 | if (down_interruptible (&fepriv->sem)) | |
777 | return -EINTR; | |
778 | ||
779 | fepriv->state = FESTATE_IDLE; | |
e36309f5 | 780 | fepriv->exit = DVB_FE_NO_EXIT; |
8eec1429 | 781 | fepriv->thread = NULL; |
1da177e4 LT |
782 | mb(); |
783 | ||
8eec1429 | 784 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 785 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
786 | if (IS_ERR(fe_thread)) { |
787 | ret = PTR_ERR(fe_thread); | |
788 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); | |
1da177e4 LT |
789 | up(&fepriv->sem); |
790 | return ret; | |
791 | } | |
8eec1429 | 792 | fepriv->thread = fe_thread; |
1da177e4 LT |
793 | return 0; |
794 | } | |
795 | ||
2030c032 | 796 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
797 | u32 *freq_min, u32 *freq_max) |
798 | { | |
799 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
800 | ||
801 | if (fe->ops.info.frequency_max == 0) | |
802 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
803 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
804 | *freq_max = fe->ops.info.frequency_max; | |
805 | else | |
806 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
807 | ||
808 | if (*freq_min == 0 || *freq_max == 0) | |
363c35fc ST |
809 | printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
810 | fe->dvb->num,fe->id); | |
c471b331 OE |
811 | } |
812 | ||
1fab46f0 OE |
813 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe, |
814 | struct dvb_frontend_parameters *parms) | |
815 | { | |
c471b331 OE |
816 | u32 freq_min; |
817 | u32 freq_max; | |
818 | ||
1fab46f0 | 819 | /* range check: frequency */ |
2030c032 | 820 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
c471b331 OE |
821 | if ((freq_min && parms->frequency < freq_min) || |
822 | (freq_max && parms->frequency > freq_max)) { | |
363c35fc ST |
823 | printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
824 | fe->dvb->num, fe->id, parms->frequency, freq_min, freq_max); | |
1fab46f0 OE |
825 | return -EINVAL; |
826 | } | |
827 | ||
828 | /* range check: symbol rate */ | |
829 | if (fe->ops.info.type == FE_QPSK) { | |
830 | if ((fe->ops.info.symbol_rate_min && | |
831 | parms->u.qpsk.symbol_rate < fe->ops.info.symbol_rate_min) || | |
832 | (fe->ops.info.symbol_rate_max && | |
833 | parms->u.qpsk.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.qpsk.symbol_rate, | |
1fab46f0 OE |
836 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
837 | return -EINVAL; | |
838 | } | |
839 | ||
840 | } else if (fe->ops.info.type == FE_QAM) { | |
841 | if ((fe->ops.info.symbol_rate_min && | |
842 | parms->u.qam.symbol_rate < fe->ops.info.symbol_rate_min) || | |
843 | (fe->ops.info.symbol_rate_max && | |
844 | parms->u.qam.symbol_rate > fe->ops.info.symbol_rate_max)) { | |
363c35fc ST |
845 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
846 | fe->dvb->num, fe->id, parms->u.qam.symbol_rate, | |
1fab46f0 OE |
847 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
848 | return -EINVAL; | |
849 | } | |
850 | } | |
851 | ||
f51fad85 JG |
852 | /* check for supported modulation */ |
853 | if (fe->ops.info.type == FE_QAM && | |
854 | (parms->u.qam.modulation > QAM_AUTO || | |
855 | !((1 << (parms->u.qam.modulation + 10)) & fe->ops.info.caps))) { | |
856 | printk(KERN_WARNING "DVB: adapter %i frontend %i modulation %u not supported\n", | |
857 | fe->dvb->num, fe->id, parms->u.qam.modulation); | |
858 | return -EINVAL; | |
859 | } | |
860 | ||
1fab46f0 OE |
861 | return 0; |
862 | } | |
863 | ||
b6e760f3 PB |
864 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
865 | { | |
50727719 | 866 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 PB |
867 | int i; |
868 | ||
50727719 AO |
869 | memset(c, 0, sizeof(struct dtv_frontend_properties)); |
870 | ||
871 | c->state = DTV_CLEAR; | |
872 | c->delivery_system = SYS_UNDEFINED; | |
873 | c->inversion = INVERSION_AUTO; | |
874 | c->fec_inner = FEC_AUTO; | |
875 | c->transmission_mode = TRANSMISSION_MODE_AUTO; | |
876 | c->bandwidth_hz = BANDWIDTH_AUTO; | |
877 | c->guard_interval = GUARD_INTERVAL_AUTO; | |
878 | c->hierarchy = HIERARCHY_AUTO; | |
879 | c->symbol_rate = QAM_AUTO; | |
880 | c->code_rate_HP = FEC_AUTO; | |
881 | c->code_rate_LP = FEC_AUTO; | |
882 | ||
883 | c->isdbt_partial_reception = -1; | |
884 | c->isdbt_sb_mode = -1; | |
885 | c->isdbt_sb_subchannel = -1; | |
886 | c->isdbt_sb_segment_idx = -1; | |
887 | c->isdbt_sb_segment_count = -1; | |
888 | c->isdbt_layer_enabled = 0x7; | |
b6e760f3 | 889 | for (i = 0; i < 3; i++) { |
50727719 AO |
890 | c->layer[i].fec = FEC_AUTO; |
891 | c->layer[i].modulation = QAM_AUTO; | |
892 | c->layer[i].interleaving = -1; | |
893 | c->layer[i].segment_count = -1; | |
b6e760f3 PB |
894 | } |
895 | ||
896 | return 0; | |
897 | } | |
898 | ||
899 | #define _DTV_CMD(n, s, b) \ | |
900 | [n] = { \ | |
901 | .name = #n, \ | |
902 | .cmd = n, \ | |
903 | .set = s,\ | |
904 | .buffer = b \ | |
905 | } | |
906 | ||
ec05a642 | 907 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
908 | _DTV_CMD(DTV_TUNE, 1, 0), |
909 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
910 | |
911 | /* Set */ | |
06d3a396 MCC |
912 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
913 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
914 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
915 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
916 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
917 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
918 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
919 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
920 | _DTV_CMD(DTV_TONE, 1, 0), | |
921 | _DTV_CMD(DTV_PILOT, 1, 0), | |
922 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
923 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
924 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
925 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
926 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
927 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
928 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
b6e760f3 PB |
929 | |
930 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
931 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
932 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
933 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
934 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 935 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
936 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
937 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
938 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
939 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
940 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
941 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
942 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
943 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
944 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
945 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
946 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
947 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
948 | ||
949 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 0, 0), | |
950 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 0, 0), | |
951 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 0, 0), | |
952 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 0, 0), | |
953 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 0, 0), | |
e7b7949a | 954 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 0, 0), |
b6e760f3 PB |
955 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 0, 0), |
956 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 0, 0), | |
957 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 0, 0), | |
958 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 0, 0), | |
959 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 0, 0), | |
960 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 0, 0), | |
961 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 0, 0), | |
962 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 0, 0), | |
963 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 0, 0), | |
964 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 0, 0), | |
965 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 0, 0), | |
966 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 0, 0), | |
967 | ||
98293ef3 | 968 | _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0), |
ec05a642 | 969 | _DTV_CMD(DTV_DVBT2_PLP_ID, 1, 0), |
98293ef3 | 970 | |
6b73eeaf | 971 | /* Get */ |
06d3a396 MCC |
972 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
973 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
974 | _DTV_CMD(DTV_CODE_RATE_HP, 0, 0), | |
975 | _DTV_CMD(DTV_CODE_RATE_LP, 0, 0), | |
976 | _DTV_CMD(DTV_GUARD_INTERVAL, 0, 0), | |
977 | _DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0), | |
978 | _DTV_CMD(DTV_HIERARCHY, 0, 0), | |
6b73eeaf ST |
979 | }; |
980 | ||
072ce0c5 | 981 | static void dtv_property_dump(struct dtv_property *tvp) |
6b73eeaf ST |
982 | { |
983 | int i; | |
984 | ||
106ff9e0 | 985 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
a1bc84c0 | 986 | printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n", |
4aae8efb DB |
987 | __func__, tvp->cmd); |
988 | return; | |
989 | } | |
990 | ||
a1bc84c0 ST |
991 | dprintk("%s() tvp.cmd = 0x%08x (%s)\n" |
992 | ,__func__ | |
6b73eeaf | 993 | ,tvp->cmd |
56f0680a | 994 | ,dtv_cmds[ tvp->cmd ].name); |
6b73eeaf | 995 | |
56f0680a | 996 | if(dtv_cmds[ tvp->cmd ].buffer) { |
6b73eeaf | 997 | |
a1bc84c0 ST |
998 | dprintk("%s() tvp.u.buffer.len = 0x%02x\n" |
999 | ,__func__ | |
6b73eeaf ST |
1000 | ,tvp->u.buffer.len); |
1001 | ||
1002 | for(i = 0; i < tvp->u.buffer.len; i++) | |
a1bc84c0 ST |
1003 | dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
1004 | ,__func__ | |
6b73eeaf ST |
1005 | ,i |
1006 | ,tvp->u.buffer.data[i]); | |
1007 | ||
1008 | } else | |
a1bc84c0 | 1009 | dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data); |
6b73eeaf ST |
1010 | } |
1011 | ||
072ce0c5 | 1012 | static int is_legacy_delivery_system(fe_delivery_system_t s) |
6b73eeaf ST |
1013 | { |
1014 | if((s == SYS_UNDEFINED) || (s == SYS_DVBC_ANNEX_AC) || | |
3fa37deb DH |
1015 | (s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS) || |
1016 | (s == SYS_ATSC)) | |
6b73eeaf ST |
1017 | return 1; |
1018 | ||
1019 | return 0; | |
1020 | } | |
1021 | ||
ee33c525 ST |
1022 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1023 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1024 | * it's being used for the legacy or new API, reducing code and complexity. | |
1025 | */ | |
072ce0c5 | 1026 | static void dtv_property_cache_sync(struct dvb_frontend *fe, |
bbe880b4 AO |
1027 | struct dtv_frontend_properties *c, |
1028 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1029 | { |
ee33c525 ST |
1030 | c->frequency = p->frequency; |
1031 | c->inversion = p->inversion; | |
1032 | ||
1033 | switch (fe->ops.info.type) { | |
1034 | case FE_QPSK: | |
e5cefa82 DB |
1035 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ |
1036 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
ee33c525 ST |
1037 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1038 | c->fec_inner = p->u.qpsk.fec_inner; | |
80a773c9 | 1039 | c->delivery_system = SYS_DVBS; |
ee33c525 ST |
1040 | break; |
1041 | case FE_QAM: | |
1042 | c->symbol_rate = p->u.qam.symbol_rate; | |
1043 | c->fec_inner = p->u.qam.fec_inner; | |
1044 | c->modulation = p->u.qam.modulation; | |
80a773c9 | 1045 | c->delivery_system = SYS_DVBC_ANNEX_AC; |
ee33c525 ST |
1046 | break; |
1047 | case FE_OFDM: | |
75b7f943 ST |
1048 | if (p->u.ofdm.bandwidth == BANDWIDTH_6_MHZ) |
1049 | c->bandwidth_hz = 6000000; | |
1050 | else if (p->u.ofdm.bandwidth == BANDWIDTH_7_MHZ) | |
1051 | c->bandwidth_hz = 7000000; | |
1052 | else if (p->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) | |
1053 | c->bandwidth_hz = 8000000; | |
1054 | else | |
1055 | /* Including BANDWIDTH_AUTO */ | |
1056 | c->bandwidth_hz = 0; | |
ee33c525 ST |
1057 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1058 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1059 | c->modulation = p->u.ofdm.constellation; | |
1060 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1061 | c->guard_interval = p->u.ofdm.guard_interval; | |
1062 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
80a773c9 | 1063 | c->delivery_system = SYS_DVBT; |
ee33c525 ST |
1064 | break; |
1065 | case FE_ATSC: | |
1066 | c->modulation = p->u.vsb.modulation; | |
80a773c9 ST |
1067 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1068 | c->delivery_system = SYS_ATSC; | |
1069 | else | |
1070 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 ST |
1071 | break; |
1072 | } | |
1073 | } | |
1074 | ||
d5748f10 ST |
1075 | /* Ensure the cached values are set correctly in the frontend |
1076 | * legacy tuning structures, for the advanced tuning API. | |
1077 | */ | |
072ce0c5 | 1078 | static void dtv_property_legacy_params_sync(struct dvb_frontend *fe) |
6b73eeaf | 1079 | { |
15cc2bb3 | 1080 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
d5748f10 | 1081 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
61cb27af | 1082 | struct dvb_frontend_parameters *p = &fepriv->parameters_in; |
6b73eeaf | 1083 | |
d5748f10 ST |
1084 | p->frequency = c->frequency; |
1085 | p->inversion = c->inversion; | |
6b73eeaf | 1086 | |
d5748f10 ST |
1087 | switch (fe->ops.info.type) { |
1088 | case FE_QPSK: | |
a1bc84c0 | 1089 | dprintk("%s() Preparing QPSK req\n", __func__); |
d5748f10 ST |
1090 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1091 | p->u.qpsk.fec_inner = c->fec_inner; | |
1092 | break; | |
1093 | case FE_QAM: | |
a1bc84c0 | 1094 | dprintk("%s() Preparing QAM req\n", __func__); |
d5748f10 ST |
1095 | p->u.qam.symbol_rate = c->symbol_rate; |
1096 | p->u.qam.fec_inner = c->fec_inner; | |
1097 | p->u.qam.modulation = c->modulation; | |
1098 | break; | |
1099 | case FE_OFDM: | |
a1bc84c0 | 1100 | dprintk("%s() Preparing OFDM req\n", __func__); |
75b7f943 ST |
1101 | if (c->bandwidth_hz == 6000000) |
1102 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1103 | else if (c->bandwidth_hz == 7000000) | |
1104 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1105 | else if (c->bandwidth_hz == 8000000) | |
1106 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
1107 | else | |
1108 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; | |
d5748f10 ST |
1109 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1110 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1111 | p->u.ofdm.constellation = c->modulation; | |
1112 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1113 | p->u.ofdm.guard_interval = c->guard_interval; | |
1114 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1115 | break; | |
1116 | case FE_ATSC: | |
a1bc84c0 | 1117 | dprintk("%s() Preparing VSB req\n", __func__); |
d5748f10 ST |
1118 | p->u.vsb.modulation = c->modulation; |
1119 | break; | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | /* Ensure the cached values are set correctly in the frontend | |
1124 | * legacy tuning structures, for the legacy tuning API. | |
1125 | */ | |
072ce0c5 | 1126 | static void dtv_property_adv_params_sync(struct dvb_frontend *fe) |
d5748f10 | 1127 | { |
15cc2bb3 | 1128 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1129 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
61cb27af | 1130 | struct dvb_frontend_parameters *p = &fepriv->parameters_in; |
6b73eeaf | 1131 | |
d5748f10 ST |
1132 | p->frequency = c->frequency; |
1133 | p->inversion = c->inversion; | |
1134 | ||
1135 | switch(c->modulation) { | |
0a6393ae ST |
1136 | case PSK_8: |
1137 | case APSK_16: | |
97854829 | 1138 | case APSK_32: |
0a6393ae | 1139 | case QPSK: |
d5748f10 ST |
1140 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1141 | p->u.qpsk.fec_inner = c->fec_inner; | |
1142 | break; | |
1143 | default: | |
1144 | break; | |
1145 | } | |
1146 | ||
94d56ffa AO |
1147 | /* Fake out a generic DVB-T request so we pass validation in the ioctl */ |
1148 | if ((c->delivery_system == SYS_ISDBT) || | |
1149 | (c->delivery_system == SYS_DVBT2)) { | |
d5748f10 ST |
1150 | p->u.ofdm.constellation = QAM_AUTO; |
1151 | p->u.ofdm.code_rate_HP = FEC_AUTO; | |
1152 | p->u.ofdm.code_rate_LP = FEC_AUTO; | |
d5748f10 ST |
1153 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO; |
1154 | p->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO; | |
1155 | p->u.ofdm.hierarchy_information = HIERARCHY_AUTO; | |
b6e760f3 PB |
1156 | if (c->bandwidth_hz == 8000000) |
1157 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
1158 | else if (c->bandwidth_hz == 7000000) | |
1159 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1160 | else if (c->bandwidth_hz == 6000000) | |
1161 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1162 | else | |
1163 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; | |
d5748f10 ST |
1164 | } |
1165 | } | |
1166 | ||
072ce0c5 | 1167 | static void dtv_property_cache_submit(struct dvb_frontend *fe) |
d5748f10 | 1168 | { |
15cc2bb3 | 1169 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
d5748f10 | 1170 | |
d5748f10 ST |
1171 | /* For legacy delivery systems we don't need the delivery_system to |
1172 | * be specified, but we populate the older structures from the cache | |
1173 | * so we can call set_frontend on older drivers. | |
1174 | */ | |
6b73eeaf | 1175 | if(is_legacy_delivery_system(c->delivery_system)) { |
6b73eeaf | 1176 | |
a1bc84c0 | 1177 | dprintk("%s() legacy, modulation = %d\n", __func__, c->modulation); |
d5748f10 | 1178 | dtv_property_legacy_params_sync(fe); |
6b73eeaf | 1179 | |
6b73eeaf | 1180 | } else { |
a1bc84c0 | 1181 | dprintk("%s() adv, modulation = %d\n", __func__, c->modulation); |
d5748f10 | 1182 | |
6b73eeaf ST |
1183 | /* For advanced delivery systems / modulation types ... |
1184 | * we seed the lecacy dvb_frontend_parameters structure | |
1185 | * so that the sanity checking code later in the IOCTL processing | |
1186 | * can validate our basic frequency ranges, symbolrates, modulation | |
1187 | * etc. | |
1188 | */ | |
d5748f10 | 1189 | dtv_property_adv_params_sync(fe); |
6b73eeaf | 1190 | } |
6b73eeaf ST |
1191 | } |
1192 | ||
16ef8def | 1193 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1194 | unsigned int cmd, void *parg); |
16ef8def | 1195 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1196 | unsigned int cmd, void *parg); |
1197 | ||
072ce0c5 MCC |
1198 | static int dtv_property_process_get(struct dvb_frontend *fe, |
1199 | struct dtv_property *tvp, | |
16ef8def | 1200 | struct file *file) |
363429a0 | 1201 | { |
50727719 | 1202 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
bbe880b4 AO |
1203 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1204 | struct dtv_frontend_properties cdetected; | |
e23d9ae3 | 1205 | int r; |
bfbf2dae | 1206 | |
bbe880b4 AO |
1207 | /* |
1208 | * If the driver implements a get_frontend function, then convert | |
1209 | * detected parameters to S2API properties. | |
1210 | */ | |
1211 | if (fe->ops.get_frontend) { | |
1212 | cdetected = *c; | |
1213 | dtv_property_cache_sync(fe, &cdetected, &fepriv->parameters_out); | |
1214 | c = &cdetected; | |
1215 | } | |
1216 | ||
363429a0 ST |
1217 | switch(tvp->cmd) { |
1218 | case DTV_FREQUENCY: | |
50727719 | 1219 | tvp->u.data = c->frequency; |
363429a0 ST |
1220 | break; |
1221 | case DTV_MODULATION: | |
50727719 | 1222 | tvp->u.data = c->modulation; |
363429a0 | 1223 | break; |
75b7f943 | 1224 | case DTV_BANDWIDTH_HZ: |
50727719 | 1225 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1226 | break; |
1227 | case DTV_INVERSION: | |
50727719 | 1228 | tvp->u.data = c->inversion; |
363429a0 ST |
1229 | break; |
1230 | case DTV_SYMBOL_RATE: | |
50727719 | 1231 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1232 | break; |
1233 | case DTV_INNER_FEC: | |
50727719 | 1234 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1235 | break; |
1236 | case DTV_PILOT: | |
50727719 | 1237 | tvp->u.data = c->pilot; |
363429a0 ST |
1238 | break; |
1239 | case DTV_ROLLOFF: | |
50727719 | 1240 | tvp->u.data = c->rolloff; |
363429a0 ST |
1241 | break; |
1242 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1243 | tvp->u.data = c->delivery_system; |
363429a0 | 1244 | break; |
363429a0 | 1245 | case DTV_VOLTAGE: |
50727719 | 1246 | tvp->u.data = c->voltage; |
363429a0 ST |
1247 | break; |
1248 | case DTV_TONE: | |
50727719 | 1249 | tvp->u.data = c->sectone; |
363429a0 | 1250 | break; |
eacf8d8d ST |
1251 | case DTV_API_VERSION: |
1252 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1253 | break; | |
a4de91be | 1254 | case DTV_CODE_RATE_HP: |
50727719 | 1255 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1256 | break; |
1257 | case DTV_CODE_RATE_LP: | |
50727719 | 1258 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1259 | break; |
b87625f0 | 1260 | case DTV_GUARD_INTERVAL: |
50727719 | 1261 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1262 | break; |
1263 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1264 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1265 | break; |
ef526f42 | 1266 | case DTV_HIERARCHY: |
50727719 | 1267 | tvp->u.data = c->hierarchy; |
ef526f42 | 1268 | break; |
b6e760f3 PB |
1269 | |
1270 | /* ISDB-T Support here */ | |
1271 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1272 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1273 | break; |
1274 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1275 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1276 | break; |
1277 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1278 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1279 | break; |
1280 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1281 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1282 | break; |
1283 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1284 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1285 | break; |
e7b7949a | 1286 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1287 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1288 | break; |
b6e760f3 | 1289 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1290 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1291 | break; |
1292 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1293 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1294 | break; |
1295 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1296 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1297 | break; |
1298 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1299 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1300 | break; |
1301 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1302 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1303 | break; |
1304 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1305 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1306 | break; |
1307 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1308 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1309 | break; |
1310 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1311 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1312 | break; |
1313 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1314 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1315 | break; |
1316 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1317 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1318 | break; |
1319 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1320 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1321 | break; |
1322 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1323 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1324 | break; |
98293ef3 | 1325 | case DTV_ISDBS_TS_ID: |
50727719 | 1326 | tvp->u.data = c->isdbs_ts_id; |
98293ef3 | 1327 | break; |
94d56ffa | 1328 | case DTV_DVBT2_PLP_ID: |
50727719 | 1329 | tvp->u.data = c->dvbt2_plp_id; |
94d56ffa | 1330 | break; |
363429a0 | 1331 | default: |
aff8ab5c | 1332 | return -EINVAL; |
363429a0 ST |
1333 | } |
1334 | ||
e23d9ae3 AO |
1335 | /* Allow the frontend to override outgoing properties */ |
1336 | if (fe->ops.get_property) { | |
1337 | r = fe->ops.get_property(fe, tvp); | |
1338 | if (r < 0) | |
1339 | return r; | |
1340 | } | |
1341 | ||
639544d7 MCC |
1342 | dtv_property_dump(tvp); |
1343 | ||
aff8ab5c | 1344 | return 0; |
363429a0 ST |
1345 | } |
1346 | ||
072ce0c5 MCC |
1347 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1348 | struct dtv_property *tvp, | |
072ce0c5 | 1349 | struct file *file) |
6b73eeaf ST |
1350 | { |
1351 | int r = 0; | |
50727719 | 1352 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
13c97bf5 | 1353 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
56f0680a | 1354 | dtv_property_dump(tvp); |
6b73eeaf | 1355 | |
bfbf2dae | 1356 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1357 | if (fe->ops.set_property) { |
bfbf2dae | 1358 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1359 | if (r < 0) |
1360 | return r; | |
1361 | } | |
bfbf2dae | 1362 | |
6b73eeaf | 1363 | switch(tvp->cmd) { |
e7fee0f3 | 1364 | case DTV_CLEAR: |
6b73eeaf ST |
1365 | /* Reset a cache of data specific to the frontend here. This does |
1366 | * not effect hardware. | |
1367 | */ | |
b6e760f3 | 1368 | dvb_frontend_clear_cache(fe); |
a1bc84c0 | 1369 | dprintk("%s() Flushing property cache\n", __func__); |
6b73eeaf | 1370 | break; |
e7fee0f3 | 1371 | case DTV_TUNE: |
6b73eeaf | 1372 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1373 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1374 | * ioctl. | |
6b73eeaf | 1375 | */ |
50727719 | 1376 | c->state = tvp->cmd; |
a1bc84c0 | 1377 | dprintk("%s() Finalised property cache\n", __func__); |
d5748f10 ST |
1378 | dtv_property_cache_submit(fe); |
1379 | ||
aff8ab5c | 1380 | r = dvb_frontend_ioctl_legacy(file, FE_SET_FRONTEND, |
61cb27af | 1381 | &fepriv->parameters_in); |
6b73eeaf | 1382 | break; |
363429a0 | 1383 | case DTV_FREQUENCY: |
50727719 | 1384 | c->frequency = tvp->u.data; |
6b73eeaf | 1385 | break; |
363429a0 | 1386 | case DTV_MODULATION: |
50727719 | 1387 | c->modulation = tvp->u.data; |
6b73eeaf | 1388 | break; |
75b7f943 | 1389 | case DTV_BANDWIDTH_HZ: |
50727719 | 1390 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1391 | break; |
363429a0 | 1392 | case DTV_INVERSION: |
50727719 | 1393 | c->inversion = tvp->u.data; |
6b73eeaf | 1394 | break; |
363429a0 | 1395 | case DTV_SYMBOL_RATE: |
50727719 | 1396 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1397 | break; |
363429a0 | 1398 | case DTV_INNER_FEC: |
50727719 | 1399 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1400 | break; |
363429a0 | 1401 | case DTV_PILOT: |
50727719 | 1402 | c->pilot = tvp->u.data; |
6b73eeaf | 1403 | break; |
363429a0 | 1404 | case DTV_ROLLOFF: |
50727719 | 1405 | c->rolloff = tvp->u.data; |
6b73eeaf | 1406 | break; |
363429a0 | 1407 | case DTV_DELIVERY_SYSTEM: |
50727719 | 1408 | c->delivery_system = tvp->u.data; |
6b73eeaf | 1409 | break; |
363429a0 | 1410 | case DTV_VOLTAGE: |
50727719 | 1411 | c->voltage = tvp->u.data; |
16ef8def | 1412 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1413 | (void *)c->voltage); |
13c97bf5 | 1414 | break; |
363429a0 | 1415 | case DTV_TONE: |
50727719 | 1416 | c->sectone = tvp->u.data; |
16ef8def | 1417 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1418 | (void *)c->sectone); |
13c97bf5 | 1419 | break; |
a4de91be | 1420 | case DTV_CODE_RATE_HP: |
50727719 | 1421 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1422 | break; |
1423 | case DTV_CODE_RATE_LP: | |
50727719 | 1424 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1425 | break; |
b87625f0 | 1426 | case DTV_GUARD_INTERVAL: |
50727719 | 1427 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1428 | break; |
1429 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1430 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1431 | break; |
ef526f42 | 1432 | case DTV_HIERARCHY: |
50727719 | 1433 | c->hierarchy = tvp->u.data; |
ef526f42 | 1434 | break; |
b6e760f3 PB |
1435 | |
1436 | /* ISDB-T Support here */ | |
1437 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1438 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1439 | break; |
1440 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1441 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1442 | break; |
1443 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1444 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1445 | break; |
1446 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1447 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1448 | break; |
1449 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1450 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1451 | break; |
e7b7949a | 1452 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1453 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1454 | break; |
b6e760f3 | 1455 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1456 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1457 | break; |
1458 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1459 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1460 | break; |
1461 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1462 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1463 | break; |
1464 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1465 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1466 | break; |
1467 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1468 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1469 | break; |
1470 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1471 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1472 | break; |
1473 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1474 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1475 | break; |
1476 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1477 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1478 | break; |
1479 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1480 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1481 | break; |
1482 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1483 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1484 | break; |
1485 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1486 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1487 | break; |
1488 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1489 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1490 | break; |
98293ef3 | 1491 | case DTV_ISDBS_TS_ID: |
50727719 | 1492 | c->isdbs_ts_id = tvp->u.data; |
94d56ffa AO |
1493 | break; |
1494 | case DTV_DVBT2_PLP_ID: | |
50727719 | 1495 | c->dvbt2_plp_id = tvp->u.data; |
98293ef3 | 1496 | break; |
363429a0 | 1497 | default: |
aff8ab5c | 1498 | return -EINVAL; |
6b73eeaf ST |
1499 | } |
1500 | ||
13c97bf5 | 1501 | return r; |
6b73eeaf ST |
1502 | } |
1503 | ||
16ef8def | 1504 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1505 | unsigned int cmd, void *parg) |
1506 | { | |
1507 | struct dvb_device *dvbdev = file->private_data; | |
1508 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1509 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1510 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
1511 | int err = -EOPNOTSUPP; |
1512 | ||
fb8253ba | 1513 | dprintk("%s (%d)\n", __func__, _IOC_NR(cmd)); |
1da177e4 | 1514 | |
e36309f5 | 1515 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
1516 | return -ENODEV; |
1517 | ||
1518 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1519 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
1520 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) | |
1521 | return -EPERM; | |
1522 | ||
1523 | if (down_interruptible (&fepriv->sem)) | |
1524 | return -ERESTARTSYS; | |
1525 | ||
13c97bf5 | 1526 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1527 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1528 | else { |
50727719 | 1529 | c->state = DTV_UNDEFINED; |
16ef8def | 1530 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1531 | } |
13c97bf5 ST |
1532 | |
1533 | up(&fepriv->sem); | |
1534 | return err; | |
1535 | } | |
1536 | ||
16ef8def | 1537 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1538 | unsigned int cmd, void *parg) |
1539 | { | |
1540 | struct dvb_device *dvbdev = file->private_data; | |
1541 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1542 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1543 | int err = 0; |
e7fee0f3 ST |
1544 | |
1545 | struct dtv_properties *tvps = NULL; | |
1546 | struct dtv_property *tvp = NULL; | |
1547 | int i; | |
13c97bf5 ST |
1548 | |
1549 | dprintk("%s\n", __func__); | |
1550 | ||
6b73eeaf | 1551 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1552 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1553 | |
a1bc84c0 ST |
1554 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1555 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1556 | |
1557 | /* Put an arbitrary limit on the number of messages that can | |
1558 | * be sent at once */ | |
6068f506 | 1559 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1560 | return -EINVAL; |
1561 | ||
6e3924aa | 1562 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1563 | if (!tvp) { |
1564 | err = -ENOMEM; | |
1565 | goto out; | |
6b73eeaf ST |
1566 | } |
1567 | ||
e7fee0f3 ST |
1568 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1569 | err = -EFAULT; | |
1570 | goto out; | |
1571 | } | |
1572 | ||
d48cb402 | 1573 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1574 | err = dtv_property_process_set(fe, tvp + i, file); |
1575 | if (err < 0) | |
1576 | goto out; | |
1577 | (tvp + i)->result = err; | |
d48cb402 | 1578 | } |
e7fee0f3 | 1579 | |
50727719 | 1580 | if (c->state == DTV_TUNE) |
a1bc84c0 | 1581 | dprintk("%s() Property cache is full, tuning\n", __func__); |
bfbf2dae | 1582 | |
363429a0 ST |
1583 | } else |
1584 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1585 | |
1586 | tvps = (struct dtv_properties __user *)parg; | |
1587 | ||
a1bc84c0 ST |
1588 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1589 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1590 | |
1591 | /* Put an arbitrary limit on the number of messages that can | |
1592 | * be sent at once */ | |
6068f506 | 1593 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1594 | return -EINVAL; |
1595 | ||
6e3924aa | 1596 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1597 | if (!tvp) { |
1598 | err = -ENOMEM; | |
1599 | goto out; | |
1600 | } | |
1601 | ||
1602 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1603 | err = -EFAULT; | |
1604 | goto out; | |
1605 | } | |
1606 | ||
d48cb402 | 1607 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1608 | err = dtv_property_process_get(fe, tvp + i, file); |
1609 | if (err < 0) | |
1610 | goto out; | |
1611 | (tvp + i)->result = err; | |
d48cb402 | 1612 | } |
363429a0 ST |
1613 | |
1614 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
1615 | err = -EFAULT; | |
1616 | goto out; | |
1617 | } | |
1618 | ||
363429a0 ST |
1619 | } else |
1620 | err = -EOPNOTSUPP; | |
1621 | ||
e7fee0f3 ST |
1622 | out: |
1623 | kfree(tvp); | |
13c97bf5 ST |
1624 | return err; |
1625 | } | |
1626 | ||
16ef8def | 1627 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
1628 | unsigned int cmd, void *parg) |
1629 | { | |
1630 | struct dvb_device *dvbdev = file->private_data; | |
1631 | struct dvb_frontend *fe = dvbdev->priv; | |
1632 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
9133aee0 MK |
1633 | int cb_err, err = -EOPNOTSUPP; |
1634 | ||
1635 | if (fe->dvb->fe_ioctl_override) { | |
1636 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1637 | DVB_FE_IOCTL_PRE); | |
1638 | if (cb_err < 0) | |
1639 | return cb_err; | |
1640 | if (cb_err > 0) | |
1641 | return 0; | |
1642 | /* fe_ioctl_override returning 0 allows | |
1643 | * dvb-core to continue handling the ioctl */ | |
1644 | } | |
13c97bf5 | 1645 | |
1da177e4 LT |
1646 | switch (cmd) { |
1647 | case FE_GET_INFO: { | |
0c53c70f | 1648 | struct dvb_frontend_info* info = parg; |
dea74869 | 1649 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 1650 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 LT |
1651 | |
1652 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't | |
1653 | * do it, it is done for it. */ | |
1654 | info->caps |= FE_CAN_INVERSION_AUTO; | |
1655 | err = 0; | |
1656 | break; | |
1657 | } | |
1658 | ||
6757ccc5 PB |
1659 | case FE_READ_STATUS: { |
1660 | fe_status_t* status = parg; | |
1661 | ||
25985edc | 1662 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 1663 | * that user get signal state from previous tuning */ |
01886255 JG |
1664 | if (fepriv->state == FESTATE_RETUNE || |
1665 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
1666 | err=0; |
1667 | *status = 0; | |
1668 | break; | |
1669 | } | |
1670 | ||
dea74869 PB |
1671 | if (fe->ops.read_status) |
1672 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 1673 | break; |
6757ccc5 | 1674 | } |
1da177e4 | 1675 | case FE_READ_BER: |
dea74869 PB |
1676 | if (fe->ops.read_ber) |
1677 | err = fe->ops.read_ber(fe, (__u32*) parg); | |
1da177e4 LT |
1678 | break; |
1679 | ||
1680 | case FE_READ_SIGNAL_STRENGTH: | |
dea74869 PB |
1681 | if (fe->ops.read_signal_strength) |
1682 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); | |
1da177e4 LT |
1683 | break; |
1684 | ||
1685 | case FE_READ_SNR: | |
dea74869 PB |
1686 | if (fe->ops.read_snr) |
1687 | err = fe->ops.read_snr(fe, (__u16*) parg); | |
1da177e4 LT |
1688 | break; |
1689 | ||
1690 | case FE_READ_UNCORRECTED_BLOCKS: | |
dea74869 PB |
1691 | if (fe->ops.read_ucblocks) |
1692 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); | |
1da177e4 LT |
1693 | break; |
1694 | ||
1695 | ||
1696 | case FE_DISEQC_RESET_OVERLOAD: | |
dea74869 PB |
1697 | if (fe->ops.diseqc_reset_overload) { |
1698 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
1699 | fepriv->state = FESTATE_DISEQC; |
1700 | fepriv->status = 0; | |
1701 | } | |
1702 | break; | |
1703 | ||
1704 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
1705 | if (fe->ops.diseqc_send_master_cmd) { |
1706 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
1707 | fepriv->state = FESTATE_DISEQC; |
1708 | fepriv->status = 0; | |
1709 | } | |
1710 | break; | |
1711 | ||
1712 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
1713 | if (fe->ops.diseqc_send_burst) { |
1714 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
1715 | fepriv->state = FESTATE_DISEQC; |
1716 | fepriv->status = 0; | |
1717 | } | |
1718 | break; | |
1719 | ||
1720 | case FE_SET_TONE: | |
dea74869 PB |
1721 | if (fe->ops.set_tone) { |
1722 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 1723 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
1724 | fepriv->state = FESTATE_DISEQC; |
1725 | fepriv->status = 0; | |
1726 | } | |
1727 | break; | |
1728 | ||
1729 | case FE_SET_VOLTAGE: | |
dea74869 PB |
1730 | if (fe->ops.set_voltage) { |
1731 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 1732 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
1733 | fepriv->state = FESTATE_DISEQC; |
1734 | fepriv->status = 0; | |
1735 | } | |
1736 | break; | |
1737 | ||
1738 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
1739 | if (fe->ops.dishnetwork_send_legacy_command) { |
1740 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
1741 | fepriv->state = FESTATE_DISEQC; |
1742 | fepriv->status = 0; | |
dea74869 | 1743 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
1744 | /* |
1745 | * NOTE: This is a fallback condition. Some frontends | |
1746 | * (stv0299 for instance) take longer than 8msec to | |
1747 | * respond to a set_voltage command. Those switches | |
1748 | * need custom routines to switch properly. For all | |
2030c032 | 1749 | * other frontends, the following should work ok. |
83b75b04 N |
1750 | * Dish network legacy switches (as used by Dish500) |
1751 | * are controlled by sending 9-bit command words | |
1752 | * spaced 8msec apart. | |
25985edc | 1753 | * the actual command word is switch/port dependent |
83b75b04 N |
1754 | * so it is up to the userspace application to send |
1755 | * the right command. | |
1756 | * The command must always start with a '0' after | |
1757 | * initialization, so parg is 8 bits and does not | |
1758 | * include the initialization or start bit | |
1759 | */ | |
c6eb8eaf | 1760 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
1761 | struct timeval nexttime; |
1762 | struct timeval tv[10]; | |
1763 | int i; | |
1764 | u8 last = 1; | |
1765 | if (dvb_frontend_debug) | |
c6eb8eaf | 1766 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
1767 | do_gettimeofday(&nexttime); |
1768 | if (dvb_frontend_debug) | |
1769 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); | |
1770 | /* before sending a command, initialize by sending | |
1771 | * a 32ms 18V to the switch | |
1772 | */ | |
dea74869 | 1773 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
1774 | dvb_frontend_sleep_until(&nexttime, 32000); |
1775 | ||
1776 | for (i = 0; i < 9; i++) { | |
1777 | if (dvb_frontend_debug) | |
1778 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 1779 | if ((swcmd & 0x01) != last) { |
83b75b04 | 1780 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 1781 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
1782 | last = (last) ? 0 : 1; |
1783 | } | |
c6eb8eaf | 1784 | swcmd = swcmd >> 1; |
83b75b04 N |
1785 | if (i != 8) |
1786 | dvb_frontend_sleep_until(&nexttime, 8000); | |
1787 | } | |
1788 | if (dvb_frontend_debug) { | |
1789 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 1790 | __func__, fe->dvb->num); |
83b75b04 N |
1791 | for (i = 1; i < 10; i++) |
1792 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
1793 | } | |
1794 | err = 0; | |
1795 | fepriv->state = FESTATE_DISEQC; | |
1796 | fepriv->status = 0; | |
1da177e4 LT |
1797 | } |
1798 | break; | |
1799 | ||
1800 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
1801 | if (fe->ops.diseqc_recv_slave_reply) |
1802 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
1803 | break; |
1804 | ||
1805 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
1806 | if (fe->ops.enable_high_lnb_voltage) |
1807 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
1808 | break; |
1809 | ||
1810 | case FE_SET_FRONTEND: { | |
50727719 | 1811 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1da177e4 LT |
1812 | struct dvb_frontend_tune_settings fetunesettings; |
1813 | ||
50727719 | 1814 | if (c->state == DTV_TUNE) { |
61cb27af | 1815 | if (dvb_frontend_check_parameters(fe, &fepriv->parameters_in) < 0) { |
6b73eeaf ST |
1816 | err = -EINVAL; |
1817 | break; | |
1818 | } | |
1819 | } else { | |
1820 | if (dvb_frontend_check_parameters(fe, parg) < 0) { | |
1821 | err = -EINVAL; | |
1822 | break; | |
1823 | } | |
1fab46f0 | 1824 | |
61cb27af | 1825 | memcpy (&fepriv->parameters_in, parg, |
6b73eeaf | 1826 | sizeof (struct dvb_frontend_parameters)); |
bbe880b4 | 1827 | dtv_property_cache_sync(fe, c, &fepriv->parameters_in); |
6b73eeaf | 1828 | } |
1da177e4 | 1829 | |
56ce5ac4 AO |
1830 | /* |
1831 | * Initialize output parameters to match the values given by | |
1832 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
1833 | * with status = 0, which copies output parameters to userspace. | |
1834 | */ | |
1835 | fepriv->parameters_out = fepriv->parameters_in; | |
1836 | ||
1da177e4 LT |
1837 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
1838 | memcpy(&fetunesettings.parameters, parg, | |
1839 | sizeof (struct dvb_frontend_parameters)); | |
1840 | ||
1841 | /* force auto frequency inversion if requested */ | |
1842 | if (dvb_force_auto_inversion) { | |
61cb27af | 1843 | fepriv->parameters_in.inversion = INVERSION_AUTO; |
1da177e4 LT |
1844 | fetunesettings.parameters.inversion = INVERSION_AUTO; |
1845 | } | |
dea74869 | 1846 | if (fe->ops.info.type == FE_OFDM) { |
1b3c3714 | 1847 | /* without hierarchical coding code_rate_LP is irrelevant, |
1da177e4 | 1848 | * so we tolerate the otherwise invalid FEC_NONE setting */ |
61cb27af AO |
1849 | if (fepriv->parameters_in.u.ofdm.hierarchy_information == HIERARCHY_NONE && |
1850 | fepriv->parameters_in.u.ofdm.code_rate_LP == FEC_NONE) | |
1851 | fepriv->parameters_in.u.ofdm.code_rate_LP = FEC_AUTO; | |
1da177e4 LT |
1852 | } |
1853 | ||
1854 | /* get frontend-specific tuning settings */ | |
dea74869 | 1855 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
1da177e4 LT |
1856 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; |
1857 | fepriv->max_drift = fetunesettings.max_drift; | |
1858 | fepriv->step_size = fetunesettings.step_size; | |
1859 | } else { | |
1860 | /* default values */ | |
dea74869 | 1861 | switch(fe->ops.info.type) { |
1da177e4 LT |
1862 | case FE_QPSK: |
1863 | fepriv->min_delay = HZ/20; | |
61cb27af AO |
1864 | fepriv->step_size = fepriv->parameters_in.u.qpsk.symbol_rate / 16000; |
1865 | fepriv->max_drift = fepriv->parameters_in.u.qpsk.symbol_rate / 2000; | |
1da177e4 LT |
1866 | break; |
1867 | ||
1868 | case FE_QAM: | |
1869 | fepriv->min_delay = HZ/20; | |
1870 | fepriv->step_size = 0; /* no zigzag */ | |
1871 | fepriv->max_drift = 0; | |
1872 | break; | |
1873 | ||
1874 | case FE_OFDM: | |
1875 | fepriv->min_delay = HZ/20; | |
dea74869 PB |
1876 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
1877 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
1da177e4 LT |
1878 | break; |
1879 | case FE_ATSC: | |
4821fb1d MA |
1880 | fepriv->min_delay = HZ/20; |
1881 | fepriv->step_size = 0; | |
1882 | fepriv->max_drift = 0; | |
1da177e4 LT |
1883 | break; |
1884 | } | |
1885 | } | |
1886 | if (dvb_override_tune_delay > 0) | |
1887 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
1888 | ||
1889 | fepriv->state = FESTATE_RETUNE; | |
1d06059c IL |
1890 | |
1891 | /* Request the search algorithm to search */ | |
1892 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
1893 | ||
1da177e4 | 1894 | dvb_frontend_add_event(fe, 0); |
5c9f480b | 1895 | dvb_frontend_wakeup(fe); |
1da177e4 LT |
1896 | fepriv->status = 0; |
1897 | err = 0; | |
1898 | break; | |
1899 | } | |
1900 | ||
1901 | case FE_GET_EVENT: | |
1902 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
1903 | break; | |
1904 | ||
1905 | case FE_GET_FRONTEND: | |
dea74869 | 1906 | if (fe->ops.get_frontend) { |
a5959dbe AO |
1907 | err = fe->ops.get_frontend(fe, &fepriv->parameters_out); |
1908 | memcpy(parg, &fepriv->parameters_out, sizeof(struct dvb_frontend_parameters)); | |
1da177e4 LT |
1909 | } |
1910 | break; | |
36cb557a AQ |
1911 | |
1912 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 1913 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 1914 | err = 0; |
36cb557a | 1915 | break; |
1da177e4 LT |
1916 | }; |
1917 | ||
9133aee0 MK |
1918 | if (fe->dvb->fe_ioctl_override) { |
1919 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1920 | DVB_FE_IOCTL_POST); | |
1921 | if (cb_err < 0) | |
1922 | return cb_err; | |
1923 | } | |
1924 | ||
1da177e4 LT |
1925 | return err; |
1926 | } | |
1927 | ||
6b73eeaf | 1928 | |
1da177e4 LT |
1929 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
1930 | { | |
1931 | struct dvb_device *dvbdev = file->private_data; | |
1932 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 1933 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 1934 | |
46b4f7c1 | 1935 | dprintk ("%s\n", __func__); |
1da177e4 LT |
1936 | |
1937 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
1938 | ||
1939 | if (fepriv->events.eventw != fepriv->events.eventr) | |
1940 | return (POLLIN | POLLRDNORM | POLLPRI); | |
1941 | ||
1942 | return 0; | |
1943 | } | |
1944 | ||
1945 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
1946 | { | |
1947 | struct dvb_device *dvbdev = file->private_data; | |
1948 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 1949 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 1950 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
1951 | int ret; |
1952 | ||
46b4f7c1 | 1953 | dprintk ("%s\n", __func__); |
e36309f5 MC |
1954 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
1955 | return -ENODEV; | |
1da177e4 | 1956 | |
59b1842d DB |
1957 | if (adapter->mfe_shared) { |
1958 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
1959 | |
1960 | if (adapter->mfe_dvbdev == NULL) | |
1961 | adapter->mfe_dvbdev = dvbdev; | |
1962 | ||
1963 | else if (adapter->mfe_dvbdev != dvbdev) { | |
1964 | struct dvb_device | |
1965 | *mfedev = adapter->mfe_dvbdev; | |
1966 | struct dvb_frontend | |
1967 | *mfe = mfedev->priv; | |
1968 | struct dvb_frontend_private | |
1969 | *mfepriv = mfe->frontend_priv; | |
1970 | int mferetry = (dvb_mfe_wait_time << 1); | |
1971 | ||
1972 | mutex_unlock (&adapter->mfe_lock); | |
1973 | while (mferetry-- && (mfedev->users != -1 || | |
1974 | mfepriv->thread != NULL)) { | |
1975 | if(msleep_interruptible(500)) { | |
1976 | if(signal_pending(current)) | |
1977 | return -EINTR; | |
59b1842d | 1978 | } |
6594690b DB |
1979 | } |
1980 | ||
1981 | mutex_lock (&adapter->mfe_lock); | |
1982 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
1983 | mfedev = adapter->mfe_dvbdev; |
1984 | mfe = mfedev->priv; | |
1985 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
1986 | if (mfedev->users != -1 || |
1987 | mfepriv->thread != NULL) { | |
1988 | mutex_unlock (&adapter->mfe_lock); | |
1989 | return -EBUSY; | |
59b1842d | 1990 | } |
6594690b | 1991 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 1992 | } |
59b1842d DB |
1993 | } |
1994 | } | |
1995 | ||
48136e1e OE |
1996 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
1997 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 1998 | goto err0; |
2d196931 DH |
1999 | |
2000 | /* If we took control of the bus, we need to force | |
2001 | reinitialization. This is because many ts_bus_ctrl() | |
2002 | functions strobe the RESET pin on the demod, and if the | |
2003 | frontend thread already exists then the dvb_init() routine | |
2004 | won't get called (which is what usually does initial | |
2005 | register configuration). */ | |
2006 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2007 | } |
2008 | ||
48136e1e OE |
2009 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2010 | goto err1; | |
04c56d0e | 2011 | |
48136e1e | 2012 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2013 | /* normal tune mode when opened R/W */ |
2014 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2015 | fepriv->tone = -1; | |
2016 | fepriv->voltage = -1; | |
2017 | ||
1da177e4 LT |
2018 | ret = dvb_frontend_start (fe); |
2019 | if (ret) | |
48136e1e | 2020 | goto err2; |
1da177e4 LT |
2021 | |
2022 | /* empty event queue */ | |
2023 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2024 | } | |
2025 | ||
59b1842d DB |
2026 | if (adapter->mfe_shared) |
2027 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2028 | return ret; |
48136e1e OE |
2029 | |
2030 | err2: | |
2031 | dvb_generic_release(inode, file); | |
2032 | err1: | |
2033 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2034 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2035 | err0: |
2036 | if (adapter->mfe_shared) | |
2037 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2038 | return ret; |
1da177e4 LT |
2039 | } |
2040 | ||
2041 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2042 | { | |
2043 | struct dvb_device *dvbdev = file->private_data; | |
2044 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2045 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2046 | int ret; |
1da177e4 | 2047 | |
46b4f7c1 | 2048 | dprintk ("%s\n", __func__); |
1da177e4 LT |
2049 | |
2050 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) | |
2051 | fepriv->release_jiffies = jiffies; | |
2052 | ||
ca5be9cd MR |
2053 | ret = dvb_generic_release (inode, file); |
2054 | ||
48136e1e | 2055 | if (dvbdev->users == -1) { |
e36309f5 | 2056 | if (fepriv->exit != DVB_FE_NO_EXIT) { |
48136e1e OE |
2057 | fops_put(file->f_op); |
2058 | file->f_op = NULL; | |
2059 | wake_up(&dvbdev->wait_queue); | |
2060 | } | |
2061 | if (fe->ops.ts_bus_ctrl) | |
2062 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2063 | } |
48136e1e | 2064 | |
ca5be9cd | 2065 | return ret; |
1da177e4 LT |
2066 | } |
2067 | ||
784e29d2 | 2068 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2069 | .owner = THIS_MODULE, |
16ef8def | 2070 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2071 | .poll = dvb_frontend_poll, |
2072 | .open = dvb_frontend_open, | |
6038f373 AB |
2073 | .release = dvb_frontend_release, |
2074 | .llseek = noop_llseek, | |
1da177e4 LT |
2075 | }; |
2076 | ||
2077 | int dvb_register_frontend(struct dvb_adapter* dvb, | |
2078 | struct dvb_frontend* fe) | |
2079 | { | |
2080 | struct dvb_frontend_private *fepriv; | |
2081 | static const struct dvb_device dvbdev_template = { | |
2082 | .users = ~0, | |
2083 | .writers = 1, | |
2084 | .readers = (~0)-1, | |
2085 | .fops = &dvb_frontend_fops, | |
2086 | .kernel_ioctl = dvb_frontend_ioctl | |
2087 | }; | |
2088 | ||
46b4f7c1 | 2089 | dprintk ("%s\n", __func__); |
1da177e4 | 2090 | |
3593cab5 | 2091 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2092 | return -ERESTARTSYS; |
2093 | ||
7408187d | 2094 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2095 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2096 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2097 | return -ENOMEM; |
2098 | } | |
0c53c70f | 2099 | fepriv = fe->frontend_priv; |
1da177e4 | 2100 | |
a0a4714c | 2101 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2102 | init_waitqueue_head (&fepriv->wait_queue); |
2103 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2104 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2105 | fe->dvb = dvb; |
2106 | fepriv->inversion = INVERSION_OFF; | |
2107 | ||
363c35fc | 2108 | printk ("DVB: registering adapter %i frontend %i (%s)...\n", |
1da177e4 | 2109 | fe->dvb->num, |
363c35fc | 2110 | fe->id, |
dea74869 | 2111 | fe->ops.info.name); |
1da177e4 LT |
2112 | |
2113 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2114 | fe, DVB_DEVICE_FRONTEND); | |
2115 | ||
3593cab5 | 2116 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2117 | return 0; |
2118 | } | |
2119 | EXPORT_SYMBOL(dvb_register_frontend); | |
2120 | ||
2121 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2122 | { | |
0c53c70f | 2123 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
46b4f7c1 | 2124 | dprintk ("%s\n", __func__); |
1da177e4 | 2125 | |
57861b43 | 2126 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2127 | dvb_frontend_stop (fe); |
57861b43 MR |
2128 | mutex_unlock(&frontend_mutex); |
2129 | ||
2130 | if (fepriv->dvbdev->users < -1) | |
2131 | wait_event(fepriv->dvbdev->wait_queue, | |
2132 | fepriv->dvbdev->users==-1); | |
2133 | ||
3593cab5 | 2134 | mutex_lock(&frontend_mutex); |
1da177e4 | 2135 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2136 | |
1da177e4 LT |
2137 | /* fe is invalid now */ |
2138 | kfree(fepriv); | |
3593cab5 | 2139 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2140 | return 0; |
2141 | } | |
2142 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2143 | |
149ef72d | 2144 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2145 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2146 | { | |
2147 | void *ptr; | |
2148 | ||
2149 | if (fe->ops.release_sec) { | |
2150 | fe->ops.release_sec(fe); | |
2151 | symbol_put_addr(fe->ops.release_sec); | |
2152 | } | |
2153 | if (fe->ops.tuner_ops.release) { | |
2154 | fe->ops.tuner_ops.release(fe); | |
2155 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2156 | } | |
2426a27e MK |
2157 | if (fe->ops.analog_ops.release) { |
2158 | fe->ops.analog_ops.release(fe); | |
2159 | symbol_put_addr(fe->ops.analog_ops.release); | |
2160 | } | |
f52a838b AQ |
2161 | ptr = (void*)fe->ops.release; |
2162 | if (ptr) { | |
2163 | fe->ops.release(fe); | |
2164 | symbol_put_addr(ptr); | |
2165 | } | |
2166 | } | |
2167 | #else | |
2168 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2169 | { | |
2170 | if (fe->ops.release_sec) | |
2171 | fe->ops.release_sec(fe); | |
2172 | if (fe->ops.tuner_ops.release) | |
2173 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2174 | if (fe->ops.analog_ops.release) |
2175 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2176 | if (fe->ops.release) |
2177 | fe->ops.release(fe); | |
2178 | } | |
2179 | #endif | |
2180 | EXPORT_SYMBOL(dvb_frontend_detach); |