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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 | 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 LT |
107 | struct dvb_device *dvbdev; |
108 | struct dvb_frontend_parameters parameters; | |
109 | struct dvb_fe_events events; | |
110 | struct semaphore sem; | |
111 | struct list_head list_head; | |
112 | wait_queue_head_t wait_queue; | |
8eec1429 | 113 | struct task_struct *thread; |
1da177e4 | 114 | unsigned long release_jiffies; |
36cb557a AQ |
115 | unsigned int exit; |
116 | unsigned int wakeup; | |
1da177e4 | 117 | fe_status_t status; |
400b7083 | 118 | unsigned long tune_mode_flags; |
36cb557a | 119 | unsigned int delay; |
86f40cc3 | 120 | unsigned int reinitialise; |
64454016 AQ |
121 | int tone; |
122 | int voltage; | |
36cb557a AQ |
123 | |
124 | /* swzigzag values */ | |
125 | unsigned int state; | |
126 | unsigned int bending; | |
127 | int lnb_drift; | |
128 | unsigned int inversion; | |
129 | unsigned int auto_step; | |
130 | unsigned int auto_sub_step; | |
131 | unsigned int started_auto_step; | |
132 | unsigned int min_delay; | |
133 | unsigned int max_drift; | |
134 | unsigned int step_size; | |
135 | int quality; | |
136 | unsigned int check_wrapped; | |
c59e7870 | 137 | enum dvbfe_search algo_status; |
1da177e4 LT |
138 | }; |
139 | ||
86f40cc3 | 140 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
1da177e4 LT |
141 | |
142 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) | |
143 | { | |
0c53c70f | 144 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
145 | struct dvb_fe_events *events = &fepriv->events; |
146 | struct dvb_frontend_event *e; | |
147 | int wp; | |
148 | ||
46b4f7c1 | 149 | dprintk ("%s\n", __func__); |
1da177e4 | 150 | |
03b76123 | 151 | if (mutex_lock_interruptible (&events->mtx)) |
1da177e4 LT |
152 | return; |
153 | ||
154 | wp = (events->eventw + 1) % MAX_EVENT; | |
155 | ||
156 | if (wp == events->eventr) { | |
157 | events->overflow = 1; | |
158 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
159 | } | |
160 | ||
161 | e = &events->events[events->eventw]; | |
162 | ||
163 | memcpy (&e->parameters, &fepriv->parameters, | |
164 | sizeof (struct dvb_frontend_parameters)); | |
165 | ||
166 | if (status & FE_HAS_LOCK) | |
dea74869 PB |
167 | if (fe->ops.get_frontend) |
168 | fe->ops.get_frontend(fe, &e->parameters); | |
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; |
1da177e4 LT |
280 | int original_inversion = fepriv->parameters.inversion; |
281 | u32 original_frequency = fepriv->parameters.frequency; | |
282 | ||
283 | /* are we using autoinversion? */ | |
dea74869 | 284 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
1da177e4 LT |
285 | (fepriv->parameters.inversion == INVERSION_AUTO)); |
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 */ | |
351 | fepriv->parameters.frequency += fepriv->lnb_drift; | |
352 | if (autoinversion) | |
353 | fepriv->parameters.inversion = fepriv->inversion; | |
dea74869 | 354 | if (fe->ops.set_frontend) |
01886255 JG |
355 | fe_set_err = fe->ops.set_frontend(fe, &fepriv->parameters); |
356 | if (fe_set_err < 0) { | |
357 | fepriv->state = FESTATE_ERROR; | |
358 | return fe_set_err; | |
359 | } | |
1da177e4 LT |
360 | |
361 | fepriv->parameters.frequency = original_frequency; | |
362 | fepriv->parameters.inversion = original_inversion; | |
363 | ||
364 | fepriv->auto_sub_step++; | |
365 | return 0; | |
366 | } | |
367 | ||
36cb557a AQ |
368 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
369 | { | |
30d9464c | 370 | fe_status_t s = 0; |
01886255 | 371 | int retval = 0; |
36cb557a AQ |
372 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
373 | ||
374 | /* if we've got no parameters, just keep idling */ | |
375 | if (fepriv->state & FESTATE_IDLE) { | |
376 | fepriv->delay = 3*HZ; | |
377 | fepriv->quality = 0; | |
378 | return; | |
379 | } | |
380 | ||
381 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
382 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
383 | if (fepriv->state & FESTATE_RETUNE) { | |
dea74869 | 384 | if (fe->ops.set_frontend) |
01886255 JG |
385 | retval = fe->ops.set_frontend(fe, |
386 | &fepriv->parameters); | |
387 | if (retval < 0) | |
388 | fepriv->state = FESTATE_ERROR; | |
389 | else | |
390 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
391 | } |
392 | fepriv->delay = 3*HZ; | |
393 | fepriv->quality = 0; | |
394 | return; | |
395 | } | |
396 | ||
397 | /* get the frontend status */ | |
398 | if (fepriv->state & FESTATE_RETUNE) { | |
399 | s = 0; | |
400 | } else { | |
dea74869 PB |
401 | if (fe->ops.read_status) |
402 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
403 | if (s != fepriv->status) { |
404 | dvb_frontend_add_event(fe, s); | |
405 | fepriv->status = s; | |
406 | } | |
407 | } | |
408 | ||
409 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
410 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
411 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
412 | fepriv->state = FESTATE_TUNED; | |
413 | ||
414 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 415 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
36cb557a AQ |
416 | (fepriv->parameters.inversion == INVERSION_AUTO)) { |
417 | fepriv->parameters.inversion = fepriv->inversion; | |
418 | } | |
419 | return; | |
420 | } | |
421 | ||
422 | /* if we are tuned already, check we're still locked */ | |
423 | if (fepriv->state & FESTATE_TUNED) { | |
424 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
425 | ||
426 | /* we're tuned, and the lock is still good... */ | |
427 | if (s & FE_HAS_LOCK) { | |
428 | return; | |
429 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
430 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
431 | fepriv->started_auto_step = fepriv->auto_step; | |
432 | fepriv->check_wrapped = 0; | |
433 | } | |
434 | } | |
435 | ||
436 | /* don't actually do anything if we're in the LOSTLOCK state, | |
437 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
438 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 439 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
440 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
441 | return; | |
442 | } | |
443 | ||
444 | /* don't do anything if we're in the DISEQC state, since this | |
445 | * might be someone with a motorized dish controlled by DISEQC. | |
446 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
447 | if (fepriv->state & FESTATE_DISEQC) { | |
448 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
449 | return; | |
450 | } | |
451 | ||
452 | /* if we're in the RETUNE state, set everything up for a brand | |
453 | * new scan, keeping the current inversion setting, as the next | |
454 | * tune is _very_ likely to require the same */ | |
455 | if (fepriv->state & FESTATE_RETUNE) { | |
456 | fepriv->lnb_drift = 0; | |
457 | fepriv->auto_step = 0; | |
458 | fepriv->auto_sub_step = 0; | |
459 | fepriv->started_auto_step = 0; | |
460 | fepriv->check_wrapped = 0; | |
461 | } | |
462 | ||
463 | /* fast zigzag. */ | |
464 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
465 | fepriv->delay = fepriv->min_delay; | |
466 | ||
2030c032 | 467 | /* perform a tune */ |
01886255 JG |
468 | retval = dvb_frontend_swzigzag_autotune(fe, |
469 | fepriv->check_wrapped); | |
470 | if (retval < 0) { | |
471 | return; | |
472 | } else if (retval) { | |
36cb557a AQ |
473 | /* OK, if we've run out of trials at the fast speed. |
474 | * Drop back to slow for the _next_ attempt */ | |
475 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
476 | fepriv->started_auto_step = fepriv->auto_step; | |
477 | return; | |
478 | } | |
479 | fepriv->check_wrapped = 1; | |
480 | ||
481 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
482 | * This ensures we cannot return from an | |
483 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
484 | * occurs */ | |
485 | if (fepriv->state & FESTATE_RETUNE) { | |
486 | fepriv->state = FESTATE_TUNING_FAST; | |
487 | } | |
488 | } | |
489 | ||
490 | /* slow zigzag */ | |
491 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
492 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
493 | ||
494 | /* Note: don't bother checking for wrapping; we stay in this | |
495 | * state until we get a lock */ | |
496 | dvb_frontend_swzigzag_autotune(fe, 0); | |
497 | } | |
498 | } | |
499 | ||
1da177e4 LT |
500 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
501 | { | |
0c53c70f | 502 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 503 | |
e36309f5 | 504 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
505 | return 1; |
506 | ||
507 | if (fepriv->dvbdev->writers == 1) | |
cc89c229 | 508 | if (time_after(jiffies, fepriv->release_jiffies + |
36cb557a | 509 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
510 | return 1; |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
515 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
516 | { | |
0c53c70f | 517 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
518 | |
519 | if (fepriv->wakeup) { | |
520 | fepriv->wakeup = 0; | |
521 | return 1; | |
522 | } | |
523 | return dvb_frontend_is_exiting(fe); | |
524 | } | |
525 | ||
526 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
527 | { | |
0c53c70f | 528 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
529 | |
530 | fepriv->wakeup = 1; | |
531 | wake_up_interruptible(&fepriv->wait_queue); | |
532 | } | |
533 | ||
1da177e4 LT |
534 | static int dvb_frontend_thread(void *data) |
535 | { | |
0c53c70f JS |
536 | struct dvb_frontend *fe = data; |
537 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 538 | unsigned long timeout; |
1da177e4 | 539 | fe_status_t s; |
c59e7870 MA |
540 | enum dvbfe_algo algo; |
541 | ||
36cb557a | 542 | struct dvb_frontend_parameters *params; |
1da177e4 | 543 | |
46b4f7c1 | 544 | dprintk("%s\n", __func__); |
1da177e4 | 545 | |
36cb557a AQ |
546 | fepriv->check_wrapped = 0; |
547 | fepriv->quality = 0; | |
548 | fepriv->delay = 3*HZ; | |
1da177e4 | 549 | fepriv->status = 0; |
1da177e4 | 550 | fepriv->wakeup = 0; |
04c56d0e AQ |
551 | fepriv->reinitialise = 0; |
552 | ||
553 | dvb_frontend_init(fe); | |
1da177e4 | 554 | |
83144186 | 555 | set_freezable(); |
1da177e4 LT |
556 | while (1) { |
557 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 558 | restart: |
1da177e4 | 559 | timeout = wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
560 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
561 | || freezing(current), | |
8eec1429 HP |
562 | fepriv->delay); |
563 | ||
564 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 565 | /* got signal or quitting */ |
e36309f5 | 566 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
567 | break; |
568 | } | |
569 | ||
8eec1429 | 570 | if (try_to_freeze()) |
6591691b | 571 | goto restart; |
1da177e4 LT |
572 | |
573 | if (down_interruptible(&fepriv->sem)) | |
574 | break; | |
575 | ||
86f40cc3 AQ |
576 | if (fepriv->reinitialise) { |
577 | dvb_frontend_init(fe); | |
64454016 | 578 | if (fepriv->tone != -1) { |
dea74869 | 579 | fe->ops.set_tone(fe, fepriv->tone); |
64454016 AQ |
580 | } |
581 | if (fepriv->voltage != -1) { | |
dea74869 | 582 | fe->ops.set_voltage(fe, fepriv->voltage); |
64454016 | 583 | } |
86f40cc3 AQ |
584 | fepriv->reinitialise = 0; |
585 | } | |
586 | ||
36cb557a | 587 | /* do an iteration of the tuning loop */ |
d772bd03 | 588 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
589 | algo = fe->ops.get_frontend_algo(fe); |
590 | switch (algo) { | |
591 | case DVBFE_ALGO_HW: | |
592 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); | |
593 | params = NULL; /* have we been asked to RETUNE ? */ | |
594 | ||
d772bd03 | 595 | if (fepriv->state & FESTATE_RETUNE) { |
c59e7870 | 596 | dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__); |
f7c9bf96 | 597 | params = &fepriv->parameters; |
d772bd03 MA |
598 | fepriv->state = FESTATE_TUNED; |
599 | } | |
600 | ||
c59e7870 MA |
601 | if (fe->ops.tune) |
602 | fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); | |
603 | ||
2fac9a0f | 604 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
c59e7870 | 605 | dprintk("%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
606 | dvb_frontend_add_event(fe, s); |
607 | fepriv->status = s; | |
608 | } | |
c59e7870 MA |
609 | break; |
610 | case DVBFE_ALGO_SW: | |
611 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); | |
70d90635 | 612 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
613 | break; |
614 | case DVBFE_ALGO_CUSTOM: | |
615 | params = NULL; /* have we been asked to RETUNE ? */ | |
616 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); | |
617 | if (fepriv->state & FESTATE_RETUNE) { | |
618 | dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__); | |
f04c3ca8 | 619 | params = &fepriv->parameters; |
c59e7870 MA |
620 | fepriv->state = FESTATE_TUNED; |
621 | } | |
622 | /* Case where we are going to search for a carrier | |
623 | * User asked us to retune again for some reason, possibly | |
624 | * requesting a search with a new set of parameters | |
625 | */ | |
626 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 627 | if (fe->ops.search) { |
c59e7870 MA |
628 | fepriv->algo_status = fe->ops.search(fe, &fepriv->parameters); |
629 | /* We did do a search as was requested, the flags are | |
630 | * now unset as well and has the flags wrt to search. | |
631 | */ | |
7bcbdf38 AJ |
632 | } else { |
633 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
634 | } | |
c59e7870 MA |
635 | } |
636 | /* Track the carrier if the search was successful */ | |
637 | if (fepriv->algo_status == DVBFE_ALGO_SEARCH_SUCCESS) { | |
c59e7870 MA |
638 | if (fe->ops.track) |
639 | fe->ops.track(fe, &fepriv->parameters); | |
7bcbdf38 AJ |
640 | } else { |
641 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
642 | fepriv->delay = HZ / 2; | |
643 | } | |
644 | fe->ops.read_status(fe, &s); | |
645 | if (s != fepriv->status) { | |
646 | dvb_frontend_add_event(fe, s); /* update event list */ | |
647 | fepriv->status = s; | |
648 | if (!(s & FE_HAS_LOCK)) { | |
649 | fepriv->delay = HZ / 10; | |
650 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
651 | } else { | |
652 | fepriv->delay = 60 * HZ; | |
653 | } | |
c59e7870 MA |
654 | } |
655 | break; | |
656 | default: | |
657 | dprintk("%s: UNDEFINED ALGO !\n", __func__); | |
658 | break; | |
659 | } | |
660 | } else { | |
4a4edcca | 661 | dvb_frontend_swzigzag(fe); |
c59e7870 | 662 | } |
1da177e4 LT |
663 | } |
664 | ||
608f62d6 OE |
665 | if (dvb_powerdown_on_sleep) { |
666 | if (fe->ops.set_voltage) | |
667 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 668 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
669 | if (fe->ops.i2c_gate_ctrl) |
670 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
671 | fe->ops.tuner_ops.sleep(fe); |
672 | if (fe->ops.i2c_gate_ctrl) | |
673 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 674 | } |
dea74869 PB |
675 | if (fe->ops.sleep) |
676 | fe->ops.sleep(fe); | |
1da177e4 LT |
677 | } |
678 | ||
8eec1429 | 679 | fepriv->thread = NULL; |
e36309f5 | 680 | if (kthread_should_stop()) |
681 | fepriv->exit = DVB_FE_DEVICE_REMOVED; | |
682 | else | |
683 | fepriv->exit = DVB_FE_NO_EXIT; | |
1da177e4 LT |
684 | mb(); |
685 | ||
686 | dvb_frontend_wakeup(fe); | |
687 | return 0; | |
688 | } | |
689 | ||
690 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
691 | { | |
0c53c70f | 692 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 693 | |
46b4f7c1 | 694 | dprintk ("%s\n", __func__); |
1da177e4 | 695 | |
e36309f5 | 696 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
697 | mb(); |
698 | ||
8eec1429 | 699 | if (!fepriv->thread) |
1da177e4 LT |
700 | return; |
701 | ||
8eec1429 | 702 | kthread_stop(fepriv->thread); |
ca5be9cd | 703 | |
a0a4714c | 704 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
705 | fepriv->state = FESTATE_IDLE; |
706 | ||
707 | /* paranoia check in case a signal arrived */ | |
8eec1429 HP |
708 | if (fepriv->thread) |
709 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", | |
710 | fepriv->thread); | |
1da177e4 LT |
711 | } |
712 | ||
83b75b04 N |
713 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
714 | { | |
715 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
716 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
717 | curtime.tv_usec - lasttime.tv_usec); | |
718 | } | |
719 | EXPORT_SYMBOL(timeval_usec_diff); | |
720 | ||
721 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
722 | { | |
723 | curtime->tv_usec += add_usec; | |
724 | if (curtime->tv_usec >= 1000000) { | |
725 | curtime->tv_usec -= 1000000; | |
726 | curtime->tv_sec++; | |
727 | } | |
728 | } | |
729 | ||
730 | /* | |
731 | * Sleep until gettimeofday() > waketime + add_usec | |
732 | * This needs to be as precise as possible, but as the delay is | |
733 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
734 | * followed by usleep (normally a busy-wait loop) for the remainder | |
735 | */ | |
736 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
737 | { | |
738 | struct timeval lasttime; | |
739 | s32 delta, newdelta; | |
740 | ||
741 | timeval_usec_add(waketime, add_usec); | |
742 | ||
743 | do_gettimeofday(&lasttime); | |
744 | delta = timeval_usec_diff(lasttime, *waketime); | |
745 | if (delta > 2500) { | |
746 | msleep((delta - 1500) / 1000); | |
747 | do_gettimeofday(&lasttime); | |
748 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
749 | delta = (newdelta > delta) ? 0 : newdelta; | |
750 | } | |
751 | if (delta > 0) | |
752 | udelay(delta); | |
753 | } | |
754 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
755 | ||
1da177e4 LT |
756 | static int dvb_frontend_start(struct dvb_frontend *fe) |
757 | { | |
758 | int ret; | |
0c53c70f | 759 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 760 | struct task_struct *fe_thread; |
1da177e4 | 761 | |
46b4f7c1 | 762 | dprintk ("%s\n", __func__); |
1da177e4 | 763 | |
8eec1429 | 764 | if (fepriv->thread) { |
e36309f5 | 765 | if (fepriv->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
766 | return 0; |
767 | else | |
768 | dvb_frontend_stop (fe); | |
769 | } | |
770 | ||
771 | if (signal_pending(current)) | |
772 | return -EINTR; | |
773 | if (down_interruptible (&fepriv->sem)) | |
774 | return -EINTR; | |
775 | ||
776 | fepriv->state = FESTATE_IDLE; | |
e36309f5 | 777 | fepriv->exit = DVB_FE_NO_EXIT; |
8eec1429 | 778 | fepriv->thread = NULL; |
1da177e4 LT |
779 | mb(); |
780 | ||
8eec1429 | 781 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 782 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
783 | if (IS_ERR(fe_thread)) { |
784 | ret = PTR_ERR(fe_thread); | |
785 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); | |
1da177e4 LT |
786 | up(&fepriv->sem); |
787 | return ret; | |
788 | } | |
8eec1429 | 789 | fepriv->thread = fe_thread; |
1da177e4 LT |
790 | return 0; |
791 | } | |
792 | ||
2030c032 | 793 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
794 | u32 *freq_min, u32 *freq_max) |
795 | { | |
796 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
797 | ||
798 | if (fe->ops.info.frequency_max == 0) | |
799 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
800 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
801 | *freq_max = fe->ops.info.frequency_max; | |
802 | else | |
803 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
804 | ||
805 | if (*freq_min == 0 || *freq_max == 0) | |
363c35fc ST |
806 | printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
807 | fe->dvb->num,fe->id); | |
c471b331 OE |
808 | } |
809 | ||
1fab46f0 OE |
810 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe, |
811 | struct dvb_frontend_parameters *parms) | |
812 | { | |
c471b331 OE |
813 | u32 freq_min; |
814 | u32 freq_max; | |
815 | ||
1fab46f0 | 816 | /* range check: frequency */ |
2030c032 | 817 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
c471b331 OE |
818 | if ((freq_min && parms->frequency < freq_min) || |
819 | (freq_max && parms->frequency > freq_max)) { | |
363c35fc ST |
820 | printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
821 | fe->dvb->num, fe->id, parms->frequency, freq_min, freq_max); | |
1fab46f0 OE |
822 | return -EINVAL; |
823 | } | |
824 | ||
825 | /* range check: symbol rate */ | |
826 | if (fe->ops.info.type == FE_QPSK) { | |
827 | if ((fe->ops.info.symbol_rate_min && | |
828 | parms->u.qpsk.symbol_rate < fe->ops.info.symbol_rate_min) || | |
829 | (fe->ops.info.symbol_rate_max && | |
830 | parms->u.qpsk.symbol_rate > fe->ops.info.symbol_rate_max)) { | |
363c35fc ST |
831 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
832 | fe->dvb->num, fe->id, parms->u.qpsk.symbol_rate, | |
1fab46f0 OE |
833 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
834 | return -EINVAL; | |
835 | } | |
836 | ||
837 | } else if (fe->ops.info.type == FE_QAM) { | |
838 | if ((fe->ops.info.symbol_rate_min && | |
839 | parms->u.qam.symbol_rate < fe->ops.info.symbol_rate_min) || | |
840 | (fe->ops.info.symbol_rate_max && | |
841 | parms->u.qam.symbol_rate > fe->ops.info.symbol_rate_max)) { | |
363c35fc ST |
842 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
843 | fe->dvb->num, fe->id, parms->u.qam.symbol_rate, | |
1fab46f0 OE |
844 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
845 | return -EINVAL; | |
846 | } | |
847 | } | |
848 | ||
f51fad85 JG |
849 | /* check for supported modulation */ |
850 | if (fe->ops.info.type == FE_QAM && | |
851 | (parms->u.qam.modulation > QAM_AUTO || | |
852 | !((1 << (parms->u.qam.modulation + 10)) & fe->ops.info.caps))) { | |
853 | printk(KERN_WARNING "DVB: adapter %i frontend %i modulation %u not supported\n", | |
854 | fe->dvb->num, fe->id, parms->u.qam.modulation); | |
855 | return -EINVAL; | |
856 | } | |
857 | ||
1fab46f0 OE |
858 | return 0; |
859 | } | |
860 | ||
b6e760f3 PB |
861 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
862 | { | |
863 | int i; | |
864 | ||
865 | memset(&(fe->dtv_property_cache), 0, | |
866 | sizeof(struct dtv_frontend_properties)); | |
867 | ||
868 | fe->dtv_property_cache.state = DTV_CLEAR; | |
869 | fe->dtv_property_cache.delivery_system = SYS_UNDEFINED; | |
870 | fe->dtv_property_cache.inversion = INVERSION_AUTO; | |
871 | fe->dtv_property_cache.fec_inner = FEC_AUTO; | |
872 | fe->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_AUTO; | |
873 | fe->dtv_property_cache.bandwidth_hz = BANDWIDTH_AUTO; | |
874 | fe->dtv_property_cache.guard_interval = GUARD_INTERVAL_AUTO; | |
875 | fe->dtv_property_cache.hierarchy = HIERARCHY_AUTO; | |
876 | fe->dtv_property_cache.symbol_rate = QAM_AUTO; | |
877 | fe->dtv_property_cache.code_rate_HP = FEC_AUTO; | |
878 | fe->dtv_property_cache.code_rate_LP = FEC_AUTO; | |
879 | ||
880 | fe->dtv_property_cache.isdbt_partial_reception = -1; | |
881 | fe->dtv_property_cache.isdbt_sb_mode = -1; | |
882 | fe->dtv_property_cache.isdbt_sb_subchannel = -1; | |
883 | fe->dtv_property_cache.isdbt_sb_segment_idx = -1; | |
884 | fe->dtv_property_cache.isdbt_sb_segment_count = -1; | |
885 | fe->dtv_property_cache.isdbt_layer_enabled = 0x7; | |
886 | for (i = 0; i < 3; i++) { | |
887 | fe->dtv_property_cache.layer[i].fec = FEC_AUTO; | |
888 | fe->dtv_property_cache.layer[i].modulation = QAM_AUTO; | |
889 | fe->dtv_property_cache.layer[i].interleaving = -1; | |
890 | fe->dtv_property_cache.layer[i].segment_count = -1; | |
891 | } | |
892 | ||
893 | return 0; | |
894 | } | |
895 | ||
896 | #define _DTV_CMD(n, s, b) \ | |
897 | [n] = { \ | |
898 | .name = #n, \ | |
899 | .cmd = n, \ | |
900 | .set = s,\ | |
901 | .buffer = b \ | |
902 | } | |
903 | ||
072ce0c5 | 904 | static struct dtv_cmds_h dtv_cmds[] = { |
06d3a396 MCC |
905 | _DTV_CMD(DTV_TUNE, 1, 0), |
906 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
907 | |
908 | /* Set */ | |
06d3a396 MCC |
909 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
910 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
911 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
912 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
913 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
914 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
915 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
916 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
917 | _DTV_CMD(DTV_TONE, 1, 0), | |
918 | _DTV_CMD(DTV_PILOT, 1, 0), | |
919 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
920 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
921 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
922 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
923 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
924 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
925 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
b6e760f3 PB |
926 | |
927 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
928 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
929 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
930 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
931 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 932 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
933 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
934 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
935 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
936 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
937 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
938 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
939 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
940 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
941 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
942 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
943 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
944 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
945 | ||
946 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 0, 0), | |
947 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 0, 0), | |
948 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 0, 0), | |
949 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 0, 0), | |
950 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 0, 0), | |
e7b7949a | 951 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 0, 0), |
b6e760f3 PB |
952 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 0, 0), |
953 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 0, 0), | |
954 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 0, 0), | |
955 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 0, 0), | |
956 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 0, 0), | |
957 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 0, 0), | |
958 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 0, 0), | |
959 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 0, 0), | |
960 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 0, 0), | |
961 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 0, 0), | |
962 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 0, 0), | |
963 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 0, 0), | |
964 | ||
98293ef3 HT |
965 | _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0), |
966 | ||
6b73eeaf | 967 | /* Get */ |
06d3a396 MCC |
968 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
969 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
970 | _DTV_CMD(DTV_CODE_RATE_HP, 0, 0), | |
971 | _DTV_CMD(DTV_CODE_RATE_LP, 0, 0), | |
972 | _DTV_CMD(DTV_GUARD_INTERVAL, 0, 0), | |
973 | _DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0), | |
974 | _DTV_CMD(DTV_HIERARCHY, 0, 0), | |
6b73eeaf ST |
975 | }; |
976 | ||
072ce0c5 | 977 | static void dtv_property_dump(struct dtv_property *tvp) |
6b73eeaf ST |
978 | { |
979 | int i; | |
980 | ||
82d7669d | 981 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
a1bc84c0 | 982 | printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n", |
4aae8efb DB |
983 | __func__, tvp->cmd); |
984 | return; | |
985 | } | |
986 | ||
a1bc84c0 ST |
987 | dprintk("%s() tvp.cmd = 0x%08x (%s)\n" |
988 | ,__func__ | |
6b73eeaf | 989 | ,tvp->cmd |
56f0680a | 990 | ,dtv_cmds[ tvp->cmd ].name); |
6b73eeaf | 991 | |
56f0680a | 992 | if(dtv_cmds[ tvp->cmd ].buffer) { |
6b73eeaf | 993 | |
a1bc84c0 ST |
994 | dprintk("%s() tvp.u.buffer.len = 0x%02x\n" |
995 | ,__func__ | |
6b73eeaf ST |
996 | ,tvp->u.buffer.len); |
997 | ||
998 | for(i = 0; i < tvp->u.buffer.len; i++) | |
a1bc84c0 ST |
999 | dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
1000 | ,__func__ | |
6b73eeaf ST |
1001 | ,i |
1002 | ,tvp->u.buffer.data[i]); | |
1003 | ||
1004 | } else | |
a1bc84c0 | 1005 | dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data); |
6b73eeaf ST |
1006 | } |
1007 | ||
072ce0c5 | 1008 | static int is_legacy_delivery_system(fe_delivery_system_t s) |
6b73eeaf ST |
1009 | { |
1010 | if((s == SYS_UNDEFINED) || (s == SYS_DVBC_ANNEX_AC) || | |
3fa37deb DH |
1011 | (s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS) || |
1012 | (s == SYS_ATSC)) | |
6b73eeaf ST |
1013 | return 1; |
1014 | ||
1015 | return 0; | |
1016 | } | |
1017 | ||
ee33c525 ST |
1018 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1019 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1020 | * it's being used for the legacy or new API, reducing code and complexity. | |
1021 | */ | |
072ce0c5 MCC |
1022 | static void dtv_property_cache_sync(struct dvb_frontend *fe, |
1023 | struct dvb_frontend_parameters *p) | |
ee33c525 ST |
1024 | { |
1025 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1026 | ||
1027 | c->frequency = p->frequency; | |
1028 | c->inversion = p->inversion; | |
1029 | ||
1030 | switch (fe->ops.info.type) { | |
1031 | case FE_QPSK: | |
e5cefa82 DB |
1032 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ |
1033 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
ee33c525 ST |
1034 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1035 | c->fec_inner = p->u.qpsk.fec_inner; | |
80a773c9 | 1036 | c->delivery_system = SYS_DVBS; |
ee33c525 ST |
1037 | break; |
1038 | case FE_QAM: | |
1039 | c->symbol_rate = p->u.qam.symbol_rate; | |
1040 | c->fec_inner = p->u.qam.fec_inner; | |
1041 | c->modulation = p->u.qam.modulation; | |
80a773c9 | 1042 | c->delivery_system = SYS_DVBC_ANNEX_AC; |
ee33c525 ST |
1043 | break; |
1044 | case FE_OFDM: | |
75b7f943 ST |
1045 | if (p->u.ofdm.bandwidth == BANDWIDTH_6_MHZ) |
1046 | c->bandwidth_hz = 6000000; | |
1047 | else if (p->u.ofdm.bandwidth == BANDWIDTH_7_MHZ) | |
1048 | c->bandwidth_hz = 7000000; | |
1049 | else if (p->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) | |
1050 | c->bandwidth_hz = 8000000; | |
1051 | else | |
1052 | /* Including BANDWIDTH_AUTO */ | |
1053 | c->bandwidth_hz = 0; | |
ee33c525 ST |
1054 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1055 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1056 | c->modulation = p->u.ofdm.constellation; | |
1057 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1058 | c->guard_interval = p->u.ofdm.guard_interval; | |
1059 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
80a773c9 | 1060 | c->delivery_system = SYS_DVBT; |
ee33c525 ST |
1061 | break; |
1062 | case FE_ATSC: | |
1063 | c->modulation = p->u.vsb.modulation; | |
80a773c9 ST |
1064 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1065 | c->delivery_system = SYS_ATSC; | |
1066 | else | |
1067 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 ST |
1068 | break; |
1069 | } | |
1070 | } | |
1071 | ||
d5748f10 ST |
1072 | /* Ensure the cached values are set correctly in the frontend |
1073 | * legacy tuning structures, for the advanced tuning API. | |
1074 | */ | |
072ce0c5 | 1075 | static void dtv_property_legacy_params_sync(struct dvb_frontend *fe) |
6b73eeaf | 1076 | { |
d5748f10 ST |
1077 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1078 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1079 | struct dvb_frontend_parameters *p = &fepriv->parameters; | |
6b73eeaf | 1080 | |
d5748f10 ST |
1081 | p->frequency = c->frequency; |
1082 | p->inversion = c->inversion; | |
6b73eeaf | 1083 | |
d5748f10 ST |
1084 | switch (fe->ops.info.type) { |
1085 | case FE_QPSK: | |
a1bc84c0 | 1086 | dprintk("%s() Preparing QPSK req\n", __func__); |
d5748f10 ST |
1087 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1088 | p->u.qpsk.fec_inner = c->fec_inner; | |
80a773c9 | 1089 | c->delivery_system = SYS_DVBS; |
d5748f10 ST |
1090 | break; |
1091 | case FE_QAM: | |
a1bc84c0 | 1092 | dprintk("%s() Preparing QAM req\n", __func__); |
d5748f10 ST |
1093 | p->u.qam.symbol_rate = c->symbol_rate; |
1094 | p->u.qam.fec_inner = c->fec_inner; | |
1095 | p->u.qam.modulation = c->modulation; | |
80a773c9 | 1096 | c->delivery_system = SYS_DVBC_ANNEX_AC; |
d5748f10 ST |
1097 | break; |
1098 | case FE_OFDM: | |
a1bc84c0 | 1099 | dprintk("%s() Preparing OFDM req\n", __func__); |
75b7f943 ST |
1100 | if (c->bandwidth_hz == 6000000) |
1101 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1102 | else if (c->bandwidth_hz == 7000000) | |
1103 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1104 | else if (c->bandwidth_hz == 8000000) | |
1105 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
1106 | else | |
1107 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; | |
d5748f10 ST |
1108 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1109 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1110 | p->u.ofdm.constellation = c->modulation; | |
1111 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1112 | p->u.ofdm.guard_interval = c->guard_interval; | |
1113 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
80a773c9 | 1114 | c->delivery_system = SYS_DVBT; |
d5748f10 ST |
1115 | break; |
1116 | case FE_ATSC: | |
a1bc84c0 | 1117 | dprintk("%s() Preparing VSB req\n", __func__); |
d5748f10 | 1118 | p->u.vsb.modulation = c->modulation; |
80a773c9 ST |
1119 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1120 | c->delivery_system = SYS_ATSC; | |
1121 | else | |
1122 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
d5748f10 ST |
1123 | break; |
1124 | } | |
1125 | } | |
1126 | ||
1127 | /* Ensure the cached values are set correctly in the frontend | |
1128 | * legacy tuning structures, for the legacy tuning API. | |
1129 | */ | |
072ce0c5 | 1130 | static void dtv_property_adv_params_sync(struct dvb_frontend *fe) |
d5748f10 | 1131 | { |
56f0680a | 1132 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1133 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
d5748f10 | 1134 | struct dvb_frontend_parameters *p = &fepriv->parameters; |
6b73eeaf | 1135 | |
d5748f10 ST |
1136 | p->frequency = c->frequency; |
1137 | p->inversion = c->inversion; | |
1138 | ||
1139 | switch(c->modulation) { | |
0a6393ae ST |
1140 | case PSK_8: |
1141 | case APSK_16: | |
97854829 | 1142 | case APSK_32: |
0a6393ae | 1143 | case QPSK: |
d5748f10 ST |
1144 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1145 | p->u.qpsk.fec_inner = c->fec_inner; | |
1146 | break; | |
1147 | default: | |
1148 | break; | |
1149 | } | |
1150 | ||
1151 | if(c->delivery_system == SYS_ISDBT) { | |
1152 | /* Fake out a generic DVB-T request so we pass validation in the ioctl */ | |
1153 | p->frequency = c->frequency; | |
b6e760f3 | 1154 | p->inversion = c->inversion; |
d5748f10 ST |
1155 | p->u.ofdm.constellation = QAM_AUTO; |
1156 | p->u.ofdm.code_rate_HP = FEC_AUTO; | |
1157 | p->u.ofdm.code_rate_LP = FEC_AUTO; | |
d5748f10 ST |
1158 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO; |
1159 | p->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO; | |
1160 | p->u.ofdm.hierarchy_information = HIERARCHY_AUTO; | |
b6e760f3 PB |
1161 | if (c->bandwidth_hz == 8000000) |
1162 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
1163 | else if (c->bandwidth_hz == 7000000) | |
1164 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1165 | else if (c->bandwidth_hz == 6000000) | |
1166 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1167 | else | |
1168 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; | |
d5748f10 ST |
1169 | } |
1170 | } | |
1171 | ||
072ce0c5 | 1172 | static void dtv_property_cache_submit(struct dvb_frontend *fe) |
d5748f10 ST |
1173 | { |
1174 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1175 | ||
d5748f10 ST |
1176 | /* For legacy delivery systems we don't need the delivery_system to |
1177 | * be specified, but we populate the older structures from the cache | |
1178 | * so we can call set_frontend on older drivers. | |
1179 | */ | |
6b73eeaf | 1180 | if(is_legacy_delivery_system(c->delivery_system)) { |
6b73eeaf | 1181 | |
a1bc84c0 | 1182 | dprintk("%s() legacy, modulation = %d\n", __func__, c->modulation); |
d5748f10 | 1183 | dtv_property_legacy_params_sync(fe); |
6b73eeaf | 1184 | |
6b73eeaf | 1185 | } else { |
a1bc84c0 | 1186 | dprintk("%s() adv, modulation = %d\n", __func__, c->modulation); |
d5748f10 | 1187 | |
6b73eeaf ST |
1188 | /* For advanced delivery systems / modulation types ... |
1189 | * we seed the lecacy dvb_frontend_parameters structure | |
1190 | * so that the sanity checking code later in the IOCTL processing | |
1191 | * can validate our basic frequency ranges, symbolrates, modulation | |
1192 | * etc. | |
1193 | */ | |
d5748f10 | 1194 | dtv_property_adv_params_sync(fe); |
6b73eeaf | 1195 | } |
6b73eeaf ST |
1196 | } |
1197 | ||
16ef8def | 1198 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1199 | unsigned int cmd, void *parg); |
16ef8def | 1200 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1201 | unsigned int cmd, void *parg); |
1202 | ||
072ce0c5 MCC |
1203 | static int dtv_property_process_get(struct dvb_frontend *fe, |
1204 | struct dtv_property *tvp, | |
16ef8def | 1205 | struct file *file) |
363429a0 ST |
1206 | { |
1207 | int r = 0; | |
1208 | ||
bfbf2dae ST |
1209 | /* Allow the frontend to validate incoming properties */ |
1210 | if (fe->ops.get_property) | |
1211 | r = fe->ops.get_property(fe, tvp); | |
1212 | ||
1213 | if (r < 0) | |
1214 | return r; | |
1215 | ||
363429a0 ST |
1216 | switch(tvp->cmd) { |
1217 | case DTV_FREQUENCY: | |
1218 | tvp->u.data = fe->dtv_property_cache.frequency; | |
1219 | break; | |
1220 | case DTV_MODULATION: | |
1221 | tvp->u.data = fe->dtv_property_cache.modulation; | |
1222 | break; | |
75b7f943 ST |
1223 | case DTV_BANDWIDTH_HZ: |
1224 | tvp->u.data = fe->dtv_property_cache.bandwidth_hz; | |
363429a0 ST |
1225 | break; |
1226 | case DTV_INVERSION: | |
1227 | tvp->u.data = fe->dtv_property_cache.inversion; | |
1228 | break; | |
1229 | case DTV_SYMBOL_RATE: | |
1230 | tvp->u.data = fe->dtv_property_cache.symbol_rate; | |
1231 | break; | |
1232 | case DTV_INNER_FEC: | |
1233 | tvp->u.data = fe->dtv_property_cache.fec_inner; | |
1234 | break; | |
1235 | case DTV_PILOT: | |
1236 | tvp->u.data = fe->dtv_property_cache.pilot; | |
1237 | break; | |
1238 | case DTV_ROLLOFF: | |
1239 | tvp->u.data = fe->dtv_property_cache.rolloff; | |
1240 | break; | |
1241 | case DTV_DELIVERY_SYSTEM: | |
1242 | tvp->u.data = fe->dtv_property_cache.delivery_system; | |
1243 | break; | |
363429a0 ST |
1244 | case DTV_VOLTAGE: |
1245 | tvp->u.data = fe->dtv_property_cache.voltage; | |
1246 | break; | |
1247 | case DTV_TONE: | |
1248 | tvp->u.data = fe->dtv_property_cache.sectone; | |
1249 | break; | |
eacf8d8d ST |
1250 | case DTV_API_VERSION: |
1251 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1252 | break; | |
a4de91be ST |
1253 | case DTV_CODE_RATE_HP: |
1254 | tvp->u.data = fe->dtv_property_cache.code_rate_HP; | |
1255 | break; | |
1256 | case DTV_CODE_RATE_LP: | |
1257 | tvp->u.data = fe->dtv_property_cache.code_rate_LP; | |
1258 | break; | |
b87625f0 ST |
1259 | case DTV_GUARD_INTERVAL: |
1260 | tvp->u.data = fe->dtv_property_cache.guard_interval; | |
1261 | break; | |
1262 | case DTV_TRANSMISSION_MODE: | |
1263 | tvp->u.data = fe->dtv_property_cache.transmission_mode; | |
1264 | break; | |
ef526f42 ST |
1265 | case DTV_HIERARCHY: |
1266 | tvp->u.data = fe->dtv_property_cache.hierarchy; | |
1267 | break; | |
b6e760f3 PB |
1268 | |
1269 | /* ISDB-T Support here */ | |
1270 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
1271 | tvp->u.data = fe->dtv_property_cache.isdbt_partial_reception; | |
1272 | break; | |
1273 | case DTV_ISDBT_SOUND_BROADCASTING: | |
1274 | tvp->u.data = fe->dtv_property_cache.isdbt_sb_mode; | |
1275 | break; | |
1276 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
1277 | tvp->u.data = fe->dtv_property_cache.isdbt_sb_subchannel; | |
1278 | break; | |
1279 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
1280 | tvp->u.data = fe->dtv_property_cache.isdbt_sb_segment_idx; | |
1281 | break; | |
1282 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
1283 | tvp->u.data = fe->dtv_property_cache.isdbt_sb_segment_count; | |
1284 | break; | |
e7b7949a PB |
1285 | case DTV_ISDBT_LAYER_ENABLED: |
1286 | tvp->u.data = fe->dtv_property_cache.isdbt_layer_enabled; | |
1287 | break; | |
b6e760f3 PB |
1288 | case DTV_ISDBT_LAYERA_FEC: |
1289 | tvp->u.data = fe->dtv_property_cache.layer[0].fec; | |
1290 | break; | |
1291 | case DTV_ISDBT_LAYERA_MODULATION: | |
1292 | tvp->u.data = fe->dtv_property_cache.layer[0].modulation; | |
1293 | break; | |
1294 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
1295 | tvp->u.data = fe->dtv_property_cache.layer[0].segment_count; | |
1296 | break; | |
1297 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
1298 | tvp->u.data = fe->dtv_property_cache.layer[0].interleaving; | |
1299 | break; | |
1300 | case DTV_ISDBT_LAYERB_FEC: | |
1301 | tvp->u.data = fe->dtv_property_cache.layer[1].fec; | |
1302 | break; | |
1303 | case DTV_ISDBT_LAYERB_MODULATION: | |
1304 | tvp->u.data = fe->dtv_property_cache.layer[1].modulation; | |
1305 | break; | |
1306 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
1307 | tvp->u.data = fe->dtv_property_cache.layer[1].segment_count; | |
1308 | break; | |
1309 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
1310 | tvp->u.data = fe->dtv_property_cache.layer[1].interleaving; | |
1311 | break; | |
1312 | case DTV_ISDBT_LAYERC_FEC: | |
1313 | tvp->u.data = fe->dtv_property_cache.layer[2].fec; | |
1314 | break; | |
1315 | case DTV_ISDBT_LAYERC_MODULATION: | |
1316 | tvp->u.data = fe->dtv_property_cache.layer[2].modulation; | |
1317 | break; | |
1318 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
1319 | tvp->u.data = fe->dtv_property_cache.layer[2].segment_count; | |
1320 | break; | |
1321 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
1322 | tvp->u.data = fe->dtv_property_cache.layer[2].interleaving; | |
1323 | break; | |
98293ef3 HT |
1324 | case DTV_ISDBS_TS_ID: |
1325 | tvp->u.data = fe->dtv_property_cache.isdbs_ts_id; | |
1326 | break; | |
363429a0 ST |
1327 | default: |
1328 | r = -1; | |
1329 | } | |
1330 | ||
639544d7 MCC |
1331 | dtv_property_dump(tvp); |
1332 | ||
363429a0 ST |
1333 | return r; |
1334 | } | |
1335 | ||
072ce0c5 MCC |
1336 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1337 | struct dtv_property *tvp, | |
072ce0c5 | 1338 | struct file *file) |
6b73eeaf ST |
1339 | { |
1340 | int r = 0; | |
13c97bf5 | 1341 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
56f0680a | 1342 | dtv_property_dump(tvp); |
6b73eeaf | 1343 | |
bfbf2dae ST |
1344 | /* Allow the frontend to validate incoming properties */ |
1345 | if (fe->ops.set_property) | |
1346 | r = fe->ops.set_property(fe, tvp); | |
1347 | ||
1348 | if (r < 0) | |
1349 | return r; | |
1350 | ||
6b73eeaf | 1351 | switch(tvp->cmd) { |
e7fee0f3 | 1352 | case DTV_CLEAR: |
6b73eeaf ST |
1353 | /* Reset a cache of data specific to the frontend here. This does |
1354 | * not effect hardware. | |
1355 | */ | |
b6e760f3 | 1356 | dvb_frontend_clear_cache(fe); |
a1bc84c0 | 1357 | dprintk("%s() Flushing property cache\n", __func__); |
6b73eeaf | 1358 | break; |
e7fee0f3 | 1359 | case DTV_TUNE: |
6b73eeaf | 1360 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1361 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1362 | * ioctl. | |
6b73eeaf | 1363 | */ |
e7fee0f3 | 1364 | fe->dtv_property_cache.state = tvp->cmd; |
a1bc84c0 | 1365 | dprintk("%s() Finalised property cache\n", __func__); |
d5748f10 ST |
1366 | dtv_property_cache_submit(fe); |
1367 | ||
16ef8def | 1368 | r |= dvb_frontend_ioctl_legacy(file, FE_SET_FRONTEND, |
13c97bf5 | 1369 | &fepriv->parameters); |
6b73eeaf | 1370 | break; |
363429a0 | 1371 | case DTV_FREQUENCY: |
56f0680a | 1372 | fe->dtv_property_cache.frequency = tvp->u.data; |
6b73eeaf | 1373 | break; |
363429a0 | 1374 | case DTV_MODULATION: |
56f0680a | 1375 | fe->dtv_property_cache.modulation = tvp->u.data; |
6b73eeaf | 1376 | break; |
75b7f943 ST |
1377 | case DTV_BANDWIDTH_HZ: |
1378 | fe->dtv_property_cache.bandwidth_hz = tvp->u.data; | |
6b73eeaf | 1379 | break; |
363429a0 | 1380 | case DTV_INVERSION: |
56f0680a | 1381 | fe->dtv_property_cache.inversion = tvp->u.data; |
6b73eeaf | 1382 | break; |
363429a0 | 1383 | case DTV_SYMBOL_RATE: |
56f0680a | 1384 | fe->dtv_property_cache.symbol_rate = tvp->u.data; |
6b73eeaf | 1385 | break; |
363429a0 | 1386 | case DTV_INNER_FEC: |
56f0680a | 1387 | fe->dtv_property_cache.fec_inner = tvp->u.data; |
6b73eeaf | 1388 | break; |
363429a0 | 1389 | case DTV_PILOT: |
56f0680a | 1390 | fe->dtv_property_cache.pilot = tvp->u.data; |
6b73eeaf | 1391 | break; |
363429a0 | 1392 | case DTV_ROLLOFF: |
56f0680a | 1393 | fe->dtv_property_cache.rolloff = tvp->u.data; |
6b73eeaf | 1394 | break; |
363429a0 | 1395 | case DTV_DELIVERY_SYSTEM: |
56f0680a | 1396 | fe->dtv_property_cache.delivery_system = tvp->u.data; |
6b73eeaf | 1397 | break; |
363429a0 | 1398 | case DTV_VOLTAGE: |
56f0680a | 1399 | fe->dtv_property_cache.voltage = tvp->u.data; |
16ef8def | 1400 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
56f0680a | 1401 | (void *)fe->dtv_property_cache.voltage); |
13c97bf5 | 1402 | break; |
363429a0 | 1403 | case DTV_TONE: |
56f0680a | 1404 | fe->dtv_property_cache.sectone = tvp->u.data; |
16ef8def | 1405 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
56f0680a | 1406 | (void *)fe->dtv_property_cache.sectone); |
13c97bf5 | 1407 | break; |
a4de91be ST |
1408 | case DTV_CODE_RATE_HP: |
1409 | fe->dtv_property_cache.code_rate_HP = tvp->u.data; | |
1410 | break; | |
1411 | case DTV_CODE_RATE_LP: | |
1412 | fe->dtv_property_cache.code_rate_LP = tvp->u.data; | |
1413 | break; | |
b87625f0 ST |
1414 | case DTV_GUARD_INTERVAL: |
1415 | fe->dtv_property_cache.guard_interval = tvp->u.data; | |
1416 | break; | |
1417 | case DTV_TRANSMISSION_MODE: | |
1418 | fe->dtv_property_cache.transmission_mode = tvp->u.data; | |
1419 | break; | |
ef526f42 ST |
1420 | case DTV_HIERARCHY: |
1421 | fe->dtv_property_cache.hierarchy = tvp->u.data; | |
1422 | break; | |
b6e760f3 PB |
1423 | |
1424 | /* ISDB-T Support here */ | |
1425 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
1426 | fe->dtv_property_cache.isdbt_partial_reception = tvp->u.data; | |
1427 | break; | |
1428 | case DTV_ISDBT_SOUND_BROADCASTING: | |
1429 | fe->dtv_property_cache.isdbt_sb_mode = tvp->u.data; | |
1430 | break; | |
1431 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
1432 | fe->dtv_property_cache.isdbt_sb_subchannel = tvp->u.data; | |
1433 | break; | |
1434 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
1435 | fe->dtv_property_cache.isdbt_sb_segment_idx = tvp->u.data; | |
1436 | break; | |
1437 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
1438 | fe->dtv_property_cache.isdbt_sb_segment_count = tvp->u.data; | |
1439 | break; | |
e7b7949a PB |
1440 | case DTV_ISDBT_LAYER_ENABLED: |
1441 | fe->dtv_property_cache.isdbt_layer_enabled = tvp->u.data; | |
1442 | break; | |
b6e760f3 PB |
1443 | case DTV_ISDBT_LAYERA_FEC: |
1444 | fe->dtv_property_cache.layer[0].fec = tvp->u.data; | |
1445 | break; | |
1446 | case DTV_ISDBT_LAYERA_MODULATION: | |
1447 | fe->dtv_property_cache.layer[0].modulation = tvp->u.data; | |
1448 | break; | |
1449 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
1450 | fe->dtv_property_cache.layer[0].segment_count = tvp->u.data; | |
1451 | break; | |
1452 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
1453 | fe->dtv_property_cache.layer[0].interleaving = tvp->u.data; | |
1454 | break; | |
1455 | case DTV_ISDBT_LAYERB_FEC: | |
1456 | fe->dtv_property_cache.layer[1].fec = tvp->u.data; | |
1457 | break; | |
1458 | case DTV_ISDBT_LAYERB_MODULATION: | |
1459 | fe->dtv_property_cache.layer[1].modulation = tvp->u.data; | |
1460 | break; | |
1461 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
1462 | fe->dtv_property_cache.layer[1].segment_count = tvp->u.data; | |
1463 | break; | |
1464 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
1465 | fe->dtv_property_cache.layer[1].interleaving = tvp->u.data; | |
1466 | break; | |
1467 | case DTV_ISDBT_LAYERC_FEC: | |
1468 | fe->dtv_property_cache.layer[2].fec = tvp->u.data; | |
1469 | break; | |
1470 | case DTV_ISDBT_LAYERC_MODULATION: | |
1471 | fe->dtv_property_cache.layer[2].modulation = tvp->u.data; | |
1472 | break; | |
1473 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
1474 | fe->dtv_property_cache.layer[2].segment_count = tvp->u.data; | |
1475 | break; | |
1476 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
1477 | fe->dtv_property_cache.layer[2].interleaving = tvp->u.data; | |
1478 | break; | |
98293ef3 HT |
1479 | case DTV_ISDBS_TS_ID: |
1480 | fe->dtv_property_cache.isdbs_ts_id = tvp->u.data; | |
1481 | break; | |
363429a0 ST |
1482 | default: |
1483 | r = -1; | |
6b73eeaf ST |
1484 | } |
1485 | ||
13c97bf5 | 1486 | return r; |
6b73eeaf ST |
1487 | } |
1488 | ||
16ef8def | 1489 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1490 | unsigned int cmd, void *parg) |
1491 | { | |
1492 | struct dvb_device *dvbdev = file->private_data; | |
1493 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 1494 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
1495 | int err = -EOPNOTSUPP; |
1496 | ||
fb8253ba | 1497 | dprintk("%s (%d)\n", __func__, _IOC_NR(cmd)); |
1da177e4 | 1498 | |
e36309f5 | 1499 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
1500 | return -ENODEV; |
1501 | ||
1502 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1503 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
1504 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) | |
1505 | return -EPERM; | |
1506 | ||
1507 | if (down_interruptible (&fepriv->sem)) | |
1508 | return -ERESTARTSYS; | |
1509 | ||
13c97bf5 | 1510 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1511 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec ST |
1512 | else { |
1513 | fe->dtv_property_cache.state = DTV_UNDEFINED; | |
16ef8def | 1514 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1515 | } |
13c97bf5 ST |
1516 | |
1517 | up(&fepriv->sem); | |
1518 | return err; | |
1519 | } | |
1520 | ||
16ef8def | 1521 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1522 | unsigned int cmd, void *parg) |
1523 | { | |
1524 | struct dvb_device *dvbdev = file->private_data; | |
1525 | struct dvb_frontend *fe = dvbdev->priv; | |
e6f9ec86 | 1526 | int err = 0; |
e7fee0f3 ST |
1527 | |
1528 | struct dtv_properties *tvps = NULL; | |
1529 | struct dtv_property *tvp = NULL; | |
1530 | int i; | |
13c97bf5 ST |
1531 | |
1532 | dprintk("%s\n", __func__); | |
1533 | ||
6b73eeaf | 1534 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1535 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1536 | |
a1bc84c0 ST |
1537 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1538 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1539 | |
1540 | /* Put an arbitrary limit on the number of messages that can | |
1541 | * be sent at once */ | |
6068f506 | 1542 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1543 | return -EINVAL; |
1544 | ||
6e3924aa | 1545 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1546 | if (!tvp) { |
1547 | err = -ENOMEM; | |
1548 | goto out; | |
6b73eeaf ST |
1549 | } |
1550 | ||
e7fee0f3 ST |
1551 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1552 | err = -EFAULT; | |
1553 | goto out; | |
1554 | } | |
1555 | ||
d48cb402 | 1556 | for (i = 0; i < tvps->num; i++) { |
16ef8def | 1557 | (tvp + i)->result = dtv_property_process_set(fe, tvp + i, file); |
d48cb402 ST |
1558 | err |= (tvp + i)->result; |
1559 | } | |
e7fee0f3 | 1560 | |
a1bc84c0 ST |
1561 | if(fe->dtv_property_cache.state == DTV_TUNE) |
1562 | dprintk("%s() Property cache is full, tuning\n", __func__); | |
bfbf2dae | 1563 | |
363429a0 ST |
1564 | } else |
1565 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1566 | |
1567 | tvps = (struct dtv_properties __user *)parg; | |
1568 | ||
a1bc84c0 ST |
1569 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1570 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1571 | |
1572 | /* Put an arbitrary limit on the number of messages that can | |
1573 | * be sent at once */ | |
6068f506 | 1574 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1575 | return -EINVAL; |
1576 | ||
6e3924aa | 1577 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1578 | if (!tvp) { |
1579 | err = -ENOMEM; | |
1580 | goto out; | |
1581 | } | |
1582 | ||
1583 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1584 | err = -EFAULT; | |
1585 | goto out; | |
1586 | } | |
1587 | ||
d48cb402 | 1588 | for (i = 0; i < tvps->num; i++) { |
16ef8def | 1589 | (tvp + i)->result = dtv_property_process_get(fe, tvp + i, file); |
d48cb402 ST |
1590 | err |= (tvp + i)->result; |
1591 | } | |
363429a0 ST |
1592 | |
1593 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
1594 | err = -EFAULT; | |
1595 | goto out; | |
1596 | } | |
1597 | ||
363429a0 ST |
1598 | } else |
1599 | err = -EOPNOTSUPP; | |
1600 | ||
e7fee0f3 ST |
1601 | out: |
1602 | kfree(tvp); | |
13c97bf5 ST |
1603 | return err; |
1604 | } | |
1605 | ||
16ef8def | 1606 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
1607 | unsigned int cmd, void *parg) |
1608 | { | |
1609 | struct dvb_device *dvbdev = file->private_data; | |
1610 | struct dvb_frontend *fe = dvbdev->priv; | |
1611 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
9133aee0 MK |
1612 | int cb_err, err = -EOPNOTSUPP; |
1613 | ||
1614 | if (fe->dvb->fe_ioctl_override) { | |
1615 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1616 | DVB_FE_IOCTL_PRE); | |
1617 | if (cb_err < 0) | |
1618 | return cb_err; | |
1619 | if (cb_err > 0) | |
1620 | return 0; | |
1621 | /* fe_ioctl_override returning 0 allows | |
1622 | * dvb-core to continue handling the ioctl */ | |
1623 | } | |
13c97bf5 | 1624 | |
1da177e4 LT |
1625 | switch (cmd) { |
1626 | case FE_GET_INFO: { | |
0c53c70f | 1627 | struct dvb_frontend_info* info = parg; |
dea74869 | 1628 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 1629 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 LT |
1630 | |
1631 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't | |
1632 | * do it, it is done for it. */ | |
1633 | info->caps |= FE_CAN_INVERSION_AUTO; | |
1634 | err = 0; | |
1635 | break; | |
1636 | } | |
1637 | ||
6757ccc5 PB |
1638 | case FE_READ_STATUS: { |
1639 | fe_status_t* status = parg; | |
1640 | ||
25985edc | 1641 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 1642 | * that user get signal state from previous tuning */ |
01886255 JG |
1643 | if (fepriv->state == FESTATE_RETUNE || |
1644 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
1645 | err=0; |
1646 | *status = 0; | |
1647 | break; | |
1648 | } | |
1649 | ||
dea74869 PB |
1650 | if (fe->ops.read_status) |
1651 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 1652 | break; |
6757ccc5 | 1653 | } |
1da177e4 | 1654 | case FE_READ_BER: |
dea74869 PB |
1655 | if (fe->ops.read_ber) |
1656 | err = fe->ops.read_ber(fe, (__u32*) parg); | |
1da177e4 LT |
1657 | break; |
1658 | ||
1659 | case FE_READ_SIGNAL_STRENGTH: | |
dea74869 PB |
1660 | if (fe->ops.read_signal_strength) |
1661 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); | |
1da177e4 LT |
1662 | break; |
1663 | ||
1664 | case FE_READ_SNR: | |
dea74869 PB |
1665 | if (fe->ops.read_snr) |
1666 | err = fe->ops.read_snr(fe, (__u16*) parg); | |
1da177e4 LT |
1667 | break; |
1668 | ||
1669 | case FE_READ_UNCORRECTED_BLOCKS: | |
dea74869 PB |
1670 | if (fe->ops.read_ucblocks) |
1671 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); | |
1da177e4 LT |
1672 | break; |
1673 | ||
1674 | ||
1675 | case FE_DISEQC_RESET_OVERLOAD: | |
dea74869 PB |
1676 | if (fe->ops.diseqc_reset_overload) { |
1677 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
1678 | fepriv->state = FESTATE_DISEQC; |
1679 | fepriv->status = 0; | |
1680 | } | |
1681 | break; | |
1682 | ||
1683 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
1684 | if (fe->ops.diseqc_send_master_cmd) { |
1685 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
1686 | fepriv->state = FESTATE_DISEQC; |
1687 | fepriv->status = 0; | |
1688 | } | |
1689 | break; | |
1690 | ||
1691 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
1692 | if (fe->ops.diseqc_send_burst) { |
1693 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
1694 | fepriv->state = FESTATE_DISEQC; |
1695 | fepriv->status = 0; | |
1696 | } | |
1697 | break; | |
1698 | ||
1699 | case FE_SET_TONE: | |
dea74869 PB |
1700 | if (fe->ops.set_tone) { |
1701 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 1702 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
1703 | fepriv->state = FESTATE_DISEQC; |
1704 | fepriv->status = 0; | |
1705 | } | |
1706 | break; | |
1707 | ||
1708 | case FE_SET_VOLTAGE: | |
dea74869 PB |
1709 | if (fe->ops.set_voltage) { |
1710 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 1711 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
1712 | fepriv->state = FESTATE_DISEQC; |
1713 | fepriv->status = 0; | |
1714 | } | |
1715 | break; | |
1716 | ||
1717 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
1718 | if (fe->ops.dishnetwork_send_legacy_command) { |
1719 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
1720 | fepriv->state = FESTATE_DISEQC; |
1721 | fepriv->status = 0; | |
dea74869 | 1722 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
1723 | /* |
1724 | * NOTE: This is a fallback condition. Some frontends | |
1725 | * (stv0299 for instance) take longer than 8msec to | |
1726 | * respond to a set_voltage command. Those switches | |
1727 | * need custom routines to switch properly. For all | |
2030c032 | 1728 | * other frontends, the following should work ok. |
83b75b04 N |
1729 | * Dish network legacy switches (as used by Dish500) |
1730 | * are controlled by sending 9-bit command words | |
1731 | * spaced 8msec apart. | |
25985edc | 1732 | * the actual command word is switch/port dependent |
83b75b04 N |
1733 | * so it is up to the userspace application to send |
1734 | * the right command. | |
1735 | * The command must always start with a '0' after | |
1736 | * initialization, so parg is 8 bits and does not | |
1737 | * include the initialization or start bit | |
1738 | */ | |
c6eb8eaf | 1739 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
1740 | struct timeval nexttime; |
1741 | struct timeval tv[10]; | |
1742 | int i; | |
1743 | u8 last = 1; | |
1744 | if (dvb_frontend_debug) | |
c6eb8eaf | 1745 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
1746 | do_gettimeofday(&nexttime); |
1747 | if (dvb_frontend_debug) | |
1748 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); | |
1749 | /* before sending a command, initialize by sending | |
1750 | * a 32ms 18V to the switch | |
1751 | */ | |
dea74869 | 1752 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
1753 | dvb_frontend_sleep_until(&nexttime, 32000); |
1754 | ||
1755 | for (i = 0; i < 9; i++) { | |
1756 | if (dvb_frontend_debug) | |
1757 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 1758 | if ((swcmd & 0x01) != last) { |
83b75b04 | 1759 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 1760 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
1761 | last = (last) ? 0 : 1; |
1762 | } | |
c6eb8eaf | 1763 | swcmd = swcmd >> 1; |
83b75b04 N |
1764 | if (i != 8) |
1765 | dvb_frontend_sleep_until(&nexttime, 8000); | |
1766 | } | |
1767 | if (dvb_frontend_debug) { | |
1768 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 1769 | __func__, fe->dvb->num); |
83b75b04 N |
1770 | for (i = 1; i < 10; i++) |
1771 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
1772 | } | |
1773 | err = 0; | |
1774 | fepriv->state = FESTATE_DISEQC; | |
1775 | fepriv->status = 0; | |
1da177e4 LT |
1776 | } |
1777 | break; | |
1778 | ||
1779 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
1780 | if (fe->ops.diseqc_recv_slave_reply) |
1781 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
1782 | break; |
1783 | ||
1784 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
1785 | if (fe->ops.enable_high_lnb_voltage) |
1786 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
1787 | break; |
1788 | ||
1789 | case FE_SET_FRONTEND: { | |
1790 | struct dvb_frontend_tune_settings fetunesettings; | |
1791 | ||
e7fee0f3 | 1792 | if(fe->dtv_property_cache.state == DTV_TUNE) { |
6b73eeaf ST |
1793 | if (dvb_frontend_check_parameters(fe, &fepriv->parameters) < 0) { |
1794 | err = -EINVAL; | |
1795 | break; | |
1796 | } | |
1797 | } else { | |
1798 | if (dvb_frontend_check_parameters(fe, parg) < 0) { | |
1799 | err = -EINVAL; | |
1800 | break; | |
1801 | } | |
1fab46f0 | 1802 | |
6b73eeaf ST |
1803 | memcpy (&fepriv->parameters, parg, |
1804 | sizeof (struct dvb_frontend_parameters)); | |
1d78cac4 | 1805 | dtv_property_cache_sync(fe, &fepriv->parameters); |
6b73eeaf | 1806 | } |
1da177e4 LT |
1807 | |
1808 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); | |
1809 | memcpy(&fetunesettings.parameters, parg, | |
1810 | sizeof (struct dvb_frontend_parameters)); | |
1811 | ||
1812 | /* force auto frequency inversion if requested */ | |
1813 | if (dvb_force_auto_inversion) { | |
1814 | fepriv->parameters.inversion = INVERSION_AUTO; | |
1815 | fetunesettings.parameters.inversion = INVERSION_AUTO; | |
1816 | } | |
dea74869 | 1817 | if (fe->ops.info.type == FE_OFDM) { |
1b3c3714 | 1818 | /* without hierarchical coding code_rate_LP is irrelevant, |
1da177e4 LT |
1819 | * so we tolerate the otherwise invalid FEC_NONE setting */ |
1820 | if (fepriv->parameters.u.ofdm.hierarchy_information == HIERARCHY_NONE && | |
1821 | fepriv->parameters.u.ofdm.code_rate_LP == FEC_NONE) | |
1822 | fepriv->parameters.u.ofdm.code_rate_LP = FEC_AUTO; | |
1823 | } | |
1824 | ||
1825 | /* get frontend-specific tuning settings */ | |
dea74869 | 1826 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
1da177e4 LT |
1827 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; |
1828 | fepriv->max_drift = fetunesettings.max_drift; | |
1829 | fepriv->step_size = fetunesettings.step_size; | |
1830 | } else { | |
1831 | /* default values */ | |
dea74869 | 1832 | switch(fe->ops.info.type) { |
1da177e4 LT |
1833 | case FE_QPSK: |
1834 | fepriv->min_delay = HZ/20; | |
1835 | fepriv->step_size = fepriv->parameters.u.qpsk.symbol_rate / 16000; | |
1836 | fepriv->max_drift = fepriv->parameters.u.qpsk.symbol_rate / 2000; | |
1837 | break; | |
1838 | ||
1839 | case FE_QAM: | |
1840 | fepriv->min_delay = HZ/20; | |
1841 | fepriv->step_size = 0; /* no zigzag */ | |
1842 | fepriv->max_drift = 0; | |
1843 | break; | |
1844 | ||
1845 | case FE_OFDM: | |
1846 | fepriv->min_delay = HZ/20; | |
dea74869 PB |
1847 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
1848 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
1da177e4 LT |
1849 | break; |
1850 | case FE_ATSC: | |
4821fb1d MA |
1851 | fepriv->min_delay = HZ/20; |
1852 | fepriv->step_size = 0; | |
1853 | fepriv->max_drift = 0; | |
1da177e4 LT |
1854 | break; |
1855 | } | |
1856 | } | |
1857 | if (dvb_override_tune_delay > 0) | |
1858 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
1859 | ||
1860 | fepriv->state = FESTATE_RETUNE; | |
1d06059c IL |
1861 | |
1862 | /* Request the search algorithm to search */ | |
1863 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
1864 | ||
1da177e4 LT |
1865 | dvb_frontend_wakeup(fe); |
1866 | dvb_frontend_add_event(fe, 0); | |
1867 | fepriv->status = 0; | |
1868 | err = 0; | |
1869 | break; | |
1870 | } | |
1871 | ||
1872 | case FE_GET_EVENT: | |
1873 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
1874 | break; | |
1875 | ||
1876 | case FE_GET_FRONTEND: | |
dea74869 | 1877 | if (fe->ops.get_frontend) { |
1da177e4 | 1878 | memcpy (parg, &fepriv->parameters, sizeof (struct dvb_frontend_parameters)); |
dea74869 | 1879 | err = fe->ops.get_frontend(fe, (struct dvb_frontend_parameters*) parg); |
1da177e4 LT |
1880 | } |
1881 | break; | |
36cb557a AQ |
1882 | |
1883 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 1884 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 1885 | err = 0; |
36cb557a | 1886 | break; |
1da177e4 LT |
1887 | }; |
1888 | ||
9133aee0 MK |
1889 | if (fe->dvb->fe_ioctl_override) { |
1890 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1891 | DVB_FE_IOCTL_POST); | |
1892 | if (cb_err < 0) | |
1893 | return cb_err; | |
1894 | } | |
1895 | ||
1da177e4 LT |
1896 | return err; |
1897 | } | |
1898 | ||
6b73eeaf | 1899 | |
1da177e4 LT |
1900 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
1901 | { | |
1902 | struct dvb_device *dvbdev = file->private_data; | |
1903 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 1904 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 1905 | |
46b4f7c1 | 1906 | dprintk ("%s\n", __func__); |
1da177e4 LT |
1907 | |
1908 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
1909 | ||
1910 | if (fepriv->events.eventw != fepriv->events.eventr) | |
1911 | return (POLLIN | POLLRDNORM | POLLPRI); | |
1912 | ||
1913 | return 0; | |
1914 | } | |
1915 | ||
1916 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
1917 | { | |
1918 | struct dvb_device *dvbdev = file->private_data; | |
1919 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 1920 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 1921 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
1922 | int ret; |
1923 | ||
46b4f7c1 | 1924 | dprintk ("%s\n", __func__); |
e36309f5 | 1925 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
1926 | return -ENODEV; | |
1da177e4 | 1927 | |
59b1842d DB |
1928 | if (adapter->mfe_shared) { |
1929 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
1930 | |
1931 | if (adapter->mfe_dvbdev == NULL) | |
1932 | adapter->mfe_dvbdev = dvbdev; | |
1933 | ||
1934 | else if (adapter->mfe_dvbdev != dvbdev) { | |
1935 | struct dvb_device | |
1936 | *mfedev = adapter->mfe_dvbdev; | |
1937 | struct dvb_frontend | |
1938 | *mfe = mfedev->priv; | |
1939 | struct dvb_frontend_private | |
1940 | *mfepriv = mfe->frontend_priv; | |
1941 | int mferetry = (dvb_mfe_wait_time << 1); | |
1942 | ||
1943 | mutex_unlock (&adapter->mfe_lock); | |
1944 | while (mferetry-- && (mfedev->users != -1 || | |
1945 | mfepriv->thread != NULL)) { | |
1946 | if(msleep_interruptible(500)) { | |
1947 | if(signal_pending(current)) | |
1948 | return -EINTR; | |
59b1842d | 1949 | } |
6594690b DB |
1950 | } |
1951 | ||
1952 | mutex_lock (&adapter->mfe_lock); | |
1953 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
1954 | mfedev = adapter->mfe_dvbdev; |
1955 | mfe = mfedev->priv; | |
1956 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
1957 | if (mfedev->users != -1 || |
1958 | mfepriv->thread != NULL) { | |
1959 | mutex_unlock (&adapter->mfe_lock); | |
1960 | return -EBUSY; | |
59b1842d | 1961 | } |
6594690b | 1962 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 1963 | } |
59b1842d DB |
1964 | } |
1965 | } | |
1966 | ||
48136e1e OE |
1967 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
1968 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 1969 | goto err0; |
ba7e6f3e ST |
1970 | } |
1971 | ||
48136e1e OE |
1972 | if ((ret = dvb_generic_open (inode, file)) < 0) |
1973 | goto err1; | |
04c56d0e | 1974 | |
48136e1e | 1975 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
1976 | /* normal tune mode when opened R/W */ |
1977 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
1978 | fepriv->tone = -1; | |
1979 | fepriv->voltage = -1; | |
1980 | ||
1da177e4 LT |
1981 | ret = dvb_frontend_start (fe); |
1982 | if (ret) | |
48136e1e | 1983 | goto err2; |
1da177e4 LT |
1984 | |
1985 | /* empty event queue */ | |
1986 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
1987 | } | |
1988 | ||
59b1842d DB |
1989 | if (adapter->mfe_shared) |
1990 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 1991 | return ret; |
48136e1e OE |
1992 | |
1993 | err2: | |
1994 | dvb_generic_release(inode, file); | |
1995 | err1: | |
1996 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
1997 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
1998 | err0: |
1999 | if (adapter->mfe_shared) | |
2000 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2001 | return ret; |
1da177e4 LT |
2002 | } |
2003 | ||
2004 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2005 | { | |
2006 | struct dvb_device *dvbdev = file->private_data; | |
2007 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2008 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2009 | int ret; |
1da177e4 | 2010 | |
46b4f7c1 | 2011 | dprintk ("%s\n", __func__); |
1da177e4 LT |
2012 | |
2013 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) | |
2014 | fepriv->release_jiffies = jiffies; | |
2015 | ||
ca5be9cd MR |
2016 | ret = dvb_generic_release (inode, file); |
2017 | ||
48136e1e | 2018 | if (dvbdev->users == -1) { |
e36309f5 | 2019 | if (fepriv->exit != DVB_FE_NO_EXIT) { |
48136e1e OE |
2020 | fops_put(file->f_op); |
2021 | file->f_op = NULL; | |
2022 | wake_up(&dvbdev->wait_queue); | |
2023 | } | |
2024 | if (fe->ops.ts_bus_ctrl) | |
2025 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2026 | } |
48136e1e | 2027 | |
ca5be9cd | 2028 | return ret; |
1da177e4 LT |
2029 | } |
2030 | ||
784e29d2 | 2031 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2032 | .owner = THIS_MODULE, |
16ef8def | 2033 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2034 | .poll = dvb_frontend_poll, |
2035 | .open = dvb_frontend_open, | |
6038f373 AB |
2036 | .release = dvb_frontend_release, |
2037 | .llseek = noop_llseek, | |
1da177e4 LT |
2038 | }; |
2039 | ||
2040 | int dvb_register_frontend(struct dvb_adapter* dvb, | |
2041 | struct dvb_frontend* fe) | |
2042 | { | |
2043 | struct dvb_frontend_private *fepriv; | |
2044 | static const struct dvb_device dvbdev_template = { | |
2045 | .users = ~0, | |
2046 | .writers = 1, | |
2047 | .readers = (~0)-1, | |
2048 | .fops = &dvb_frontend_fops, | |
2049 | .kernel_ioctl = dvb_frontend_ioctl | |
2050 | }; | |
2051 | ||
46b4f7c1 | 2052 | dprintk ("%s\n", __func__); |
1da177e4 | 2053 | |
3593cab5 | 2054 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2055 | return -ERESTARTSYS; |
2056 | ||
7408187d | 2057 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2058 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2059 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2060 | return -ENOMEM; |
2061 | } | |
0c53c70f | 2062 | fepriv = fe->frontend_priv; |
1da177e4 | 2063 | |
a0a4714c | 2064 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2065 | init_waitqueue_head (&fepriv->wait_queue); |
2066 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2067 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2068 | fe->dvb = dvb; |
2069 | fepriv->inversion = INVERSION_OFF; | |
2070 | ||
363c35fc | 2071 | printk ("DVB: registering adapter %i frontend %i (%s)...\n", |
1da177e4 | 2072 | fe->dvb->num, |
363c35fc | 2073 | fe->id, |
dea74869 | 2074 | fe->ops.info.name); |
1da177e4 LT |
2075 | |
2076 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2077 | fe, DVB_DEVICE_FRONTEND); | |
2078 | ||
3593cab5 | 2079 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2080 | return 0; |
2081 | } | |
2082 | EXPORT_SYMBOL(dvb_register_frontend); | |
2083 | ||
2084 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2085 | { | |
0c53c70f | 2086 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
46b4f7c1 | 2087 | dprintk ("%s\n", __func__); |
1da177e4 | 2088 | |
57861b43 | 2089 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2090 | dvb_frontend_stop (fe); |
57861b43 MR |
2091 | mutex_unlock(&frontend_mutex); |
2092 | ||
2093 | if (fepriv->dvbdev->users < -1) | |
2094 | wait_event(fepriv->dvbdev->wait_queue, | |
2095 | fepriv->dvbdev->users==-1); | |
2096 | ||
3593cab5 | 2097 | mutex_lock(&frontend_mutex); |
1da177e4 | 2098 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2099 | |
1da177e4 LT |
2100 | /* fe is invalid now */ |
2101 | kfree(fepriv); | |
3593cab5 | 2102 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2103 | return 0; |
2104 | } | |
2105 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2106 | |
149ef72d | 2107 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2108 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2109 | { | |
2110 | void *ptr; | |
2111 | ||
2112 | if (fe->ops.release_sec) { | |
2113 | fe->ops.release_sec(fe); | |
2114 | symbol_put_addr(fe->ops.release_sec); | |
2115 | } | |
2116 | if (fe->ops.tuner_ops.release) { | |
2117 | fe->ops.tuner_ops.release(fe); | |
2118 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2119 | } | |
2426a27e MK |
2120 | if (fe->ops.analog_ops.release) { |
2121 | fe->ops.analog_ops.release(fe); | |
2122 | symbol_put_addr(fe->ops.analog_ops.release); | |
2123 | } | |
f52a838b AQ |
2124 | ptr = (void*)fe->ops.release; |
2125 | if (ptr) { | |
2126 | fe->ops.release(fe); | |
2127 | symbol_put_addr(ptr); | |
2128 | } | |
2129 | } | |
2130 | #else | |
2131 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2132 | { | |
2133 | if (fe->ops.release_sec) | |
2134 | fe->ops.release_sec(fe); | |
2135 | if (fe->ops.tuner_ops.release) | |
2136 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2137 | if (fe->ops.analog_ops.release) |
2138 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2139 | if (fe->ops.release) |
2140 | fe->ops.release(fe); | |
2141 | } | |
2142 | #endif | |
2143 | EXPORT_SYMBOL(dvb_frontend_detach); |