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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 | |
77b1e2fb AO |
152 | if ((status & FE_HAS_LOCK) && fe->ops.get_frontend) |
153 | fe->ops.get_frontend(fe, &fepriv->parameters_out); | |
1da177e4 | 154 | |
77b1e2fb | 155 | mutex_lock(&events->mtx); |
1da177e4 | 156 | |
77b1e2fb | 157 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
158 | if (wp == events->eventr) { |
159 | events->overflow = 1; | |
160 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
161 | } | |
162 | ||
163 | e = &events->events[events->eventw]; | |
77b1e2fb | 164 | e->status = status; |
a5959dbe | 165 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
166 | |
167 | events->eventw = wp; | |
168 | ||
03b76123 | 169 | mutex_unlock(&events->mtx); |
1da177e4 | 170 | |
1da177e4 LT |
171 | wake_up_interruptible (&events->wait_queue); |
172 | } | |
173 | ||
174 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
175 | struct dvb_frontend_event *event, int flags) | |
176 | { | |
0c53c70f | 177 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
178 | struct dvb_fe_events *events = &fepriv->events; |
179 | ||
46b4f7c1 | 180 | dprintk ("%s\n", __func__); |
1da177e4 LT |
181 | |
182 | if (events->overflow) { | |
183 | events->overflow = 0; | |
184 | return -EOVERFLOW; | |
185 | } | |
186 | ||
187 | if (events->eventw == events->eventr) { | |
188 | int ret; | |
189 | ||
190 | if (flags & O_NONBLOCK) | |
191 | return -EWOULDBLOCK; | |
192 | ||
193 | up(&fepriv->sem); | |
194 | ||
195 | ret = wait_event_interruptible (events->wait_queue, | |
196 | events->eventw != events->eventr); | |
197 | ||
198 | if (down_interruptible (&fepriv->sem)) | |
199 | return -ERESTARTSYS; | |
200 | ||
201 | if (ret < 0) | |
202 | return ret; | |
203 | } | |
204 | ||
77b1e2fb AO |
205 | mutex_lock(&events->mtx); |
206 | *event = events->events[events->eventr]; | |
1da177e4 | 207 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 208 | mutex_unlock(&events->mtx); |
1da177e4 LT |
209 | |
210 | return 0; | |
211 | } | |
212 | ||
20640bea AO |
213 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
214 | { | |
215 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
216 | struct dvb_fe_events *events = &fepriv->events; | |
217 | ||
218 | mutex_lock(&events->mtx); | |
219 | events->eventr = events->eventw; | |
220 | mutex_unlock(&events->mtx); | |
221 | } | |
222 | ||
1da177e4 LT |
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) |
bc9cd273 MCC |
355 | fe_set_err = fe->ops.set_frontend(fe); |
356 | else if (fe->ops.set_frontend_legacy) | |
357 | fe_set_err = fe->ops.set_frontend_legacy(fe, &fepriv->parameters_in); | |
a5959dbe | 358 | fepriv->parameters_out = fepriv->parameters_in; |
01886255 JG |
359 | if (fe_set_err < 0) { |
360 | fepriv->state = FESTATE_ERROR; | |
361 | return fe_set_err; | |
362 | } | |
1da177e4 | 363 | |
61cb27af AO |
364 | fepriv->parameters_in.frequency = original_frequency; |
365 | fepriv->parameters_in.inversion = original_inversion; | |
1da177e4 LT |
366 | |
367 | fepriv->auto_sub_step++; | |
368 | return 0; | |
369 | } | |
370 | ||
36cb557a AQ |
371 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
372 | { | |
30d9464c | 373 | fe_status_t s = 0; |
01886255 | 374 | int retval = 0; |
36cb557a AQ |
375 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
376 | ||
377 | /* if we've got no parameters, just keep idling */ | |
378 | if (fepriv->state & FESTATE_IDLE) { | |
379 | fepriv->delay = 3*HZ; | |
380 | fepriv->quality = 0; | |
381 | return; | |
382 | } | |
383 | ||
384 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
385 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
386 | if (fepriv->state & FESTATE_RETUNE) { | |
dea74869 | 387 | if (fe->ops.set_frontend) |
bc9cd273 MCC |
388 | retval = fe->ops.set_frontend(fe); |
389 | else if (fe->ops.set_frontend_legacy) | |
390 | retval = fe->ops.set_frontend_legacy(fe, | |
61cb27af | 391 | &fepriv->parameters_in); |
a5959dbe | 392 | fepriv->parameters_out = fepriv->parameters_in; |
01886255 JG |
393 | if (retval < 0) |
394 | fepriv->state = FESTATE_ERROR; | |
395 | else | |
396 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
397 | } |
398 | fepriv->delay = 3*HZ; | |
399 | fepriv->quality = 0; | |
400 | return; | |
401 | } | |
402 | ||
403 | /* get the frontend status */ | |
404 | if (fepriv->state & FESTATE_RETUNE) { | |
405 | s = 0; | |
406 | } else { | |
dea74869 PB |
407 | if (fe->ops.read_status) |
408 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
409 | if (s != fepriv->status) { |
410 | dvb_frontend_add_event(fe, s); | |
411 | fepriv->status = s; | |
412 | } | |
413 | } | |
414 | ||
415 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
416 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
417 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
418 | fepriv->state = FESTATE_TUNED; | |
419 | ||
420 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 421 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
61cb27af AO |
422 | (fepriv->parameters_in.inversion == INVERSION_AUTO)) { |
423 | fepriv->parameters_in.inversion = fepriv->inversion; | |
36cb557a AQ |
424 | } |
425 | return; | |
426 | } | |
427 | ||
428 | /* if we are tuned already, check we're still locked */ | |
429 | if (fepriv->state & FESTATE_TUNED) { | |
430 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
431 | ||
432 | /* we're tuned, and the lock is still good... */ | |
433 | if (s & FE_HAS_LOCK) { | |
434 | return; | |
435 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
436 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
437 | fepriv->started_auto_step = fepriv->auto_step; | |
438 | fepriv->check_wrapped = 0; | |
439 | } | |
440 | } | |
441 | ||
442 | /* don't actually do anything if we're in the LOSTLOCK state, | |
443 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
444 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 445 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
446 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
447 | return; | |
448 | } | |
449 | ||
450 | /* don't do anything if we're in the DISEQC state, since this | |
451 | * might be someone with a motorized dish controlled by DISEQC. | |
452 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
453 | if (fepriv->state & FESTATE_DISEQC) { | |
454 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
455 | return; | |
456 | } | |
457 | ||
458 | /* if we're in the RETUNE state, set everything up for a brand | |
459 | * new scan, keeping the current inversion setting, as the next | |
460 | * tune is _very_ likely to require the same */ | |
461 | if (fepriv->state & FESTATE_RETUNE) { | |
462 | fepriv->lnb_drift = 0; | |
463 | fepriv->auto_step = 0; | |
464 | fepriv->auto_sub_step = 0; | |
465 | fepriv->started_auto_step = 0; | |
466 | fepriv->check_wrapped = 0; | |
467 | } | |
468 | ||
469 | /* fast zigzag. */ | |
470 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
471 | fepriv->delay = fepriv->min_delay; | |
472 | ||
2030c032 | 473 | /* perform a tune */ |
01886255 JG |
474 | retval = dvb_frontend_swzigzag_autotune(fe, |
475 | fepriv->check_wrapped); | |
476 | if (retval < 0) { | |
477 | return; | |
478 | } else if (retval) { | |
36cb557a AQ |
479 | /* OK, if we've run out of trials at the fast speed. |
480 | * Drop back to slow for the _next_ attempt */ | |
481 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
482 | fepriv->started_auto_step = fepriv->auto_step; | |
483 | return; | |
484 | } | |
485 | fepriv->check_wrapped = 1; | |
486 | ||
487 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
488 | * This ensures we cannot return from an | |
489 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
490 | * occurs */ | |
491 | if (fepriv->state & FESTATE_RETUNE) { | |
492 | fepriv->state = FESTATE_TUNING_FAST; | |
493 | } | |
494 | } | |
495 | ||
496 | /* slow zigzag */ | |
497 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
498 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
499 | ||
500 | /* Note: don't bother checking for wrapping; we stay in this | |
501 | * state until we get a lock */ | |
502 | dvb_frontend_swzigzag_autotune(fe, 0); | |
503 | } | |
504 | } | |
505 | ||
1da177e4 LT |
506 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
507 | { | |
0c53c70f | 508 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 509 | |
e36309f5 | 510 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
511 | return 1; |
512 | ||
513 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 514 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 515 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
516 | return 1; |
517 | ||
518 | return 0; | |
519 | } | |
520 | ||
521 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
522 | { | |
0c53c70f | 523 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
524 | |
525 | if (fepriv->wakeup) { | |
526 | fepriv->wakeup = 0; | |
527 | return 1; | |
528 | } | |
529 | return dvb_frontend_is_exiting(fe); | |
530 | } | |
531 | ||
532 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
533 | { | |
0c53c70f | 534 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
535 | |
536 | fepriv->wakeup = 1; | |
537 | wake_up_interruptible(&fepriv->wait_queue); | |
538 | } | |
539 | ||
1da177e4 LT |
540 | static int dvb_frontend_thread(void *data) |
541 | { | |
0c53c70f JS |
542 | struct dvb_frontend *fe = data; |
543 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 544 | fe_status_t s; |
c59e7870 MA |
545 | enum dvbfe_algo algo; |
546 | ||
36cb557a | 547 | struct dvb_frontend_parameters *params; |
1da177e4 | 548 | |
46b4f7c1 | 549 | dprintk("%s\n", __func__); |
1da177e4 | 550 | |
36cb557a AQ |
551 | fepriv->check_wrapped = 0; |
552 | fepriv->quality = 0; | |
553 | fepriv->delay = 3*HZ; | |
1da177e4 | 554 | fepriv->status = 0; |
1da177e4 | 555 | fepriv->wakeup = 0; |
04c56d0e AQ |
556 | fepriv->reinitialise = 0; |
557 | ||
558 | dvb_frontend_init(fe); | |
1da177e4 | 559 | |
83144186 | 560 | set_freezable(); |
1da177e4 LT |
561 | while (1) { |
562 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 563 | restart: |
94238e9b | 564 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
565 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
566 | || freezing(current), | |
8eec1429 HP |
567 | fepriv->delay); |
568 | ||
569 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 570 | /* got signal or quitting */ |
e36309f5 | 571 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
572 | break; |
573 | } | |
574 | ||
8eec1429 | 575 | if (try_to_freeze()) |
6591691b | 576 | goto restart; |
1da177e4 LT |
577 | |
578 | if (down_interruptible(&fepriv->sem)) | |
579 | break; | |
580 | ||
86f40cc3 AQ |
581 | if (fepriv->reinitialise) { |
582 | dvb_frontend_init(fe); | |
42f4e774 | 583 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 584 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 585 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 586 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
587 | fepriv->reinitialise = 0; |
588 | } | |
589 | ||
36cb557a | 590 | /* do an iteration of the tuning loop */ |
d772bd03 | 591 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
592 | algo = fe->ops.get_frontend_algo(fe); |
593 | switch (algo) { | |
594 | case DVBFE_ALGO_HW: | |
595 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); | |
596 | params = NULL; /* have we been asked to RETUNE ? */ | |
597 | ||
d772bd03 | 598 | if (fepriv->state & FESTATE_RETUNE) { |
c59e7870 | 599 | dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__); |
61cb27af | 600 | params = &fepriv->parameters_in; |
d772bd03 MA |
601 | fepriv->state = FESTATE_TUNED; |
602 | } | |
603 | ||
c59e7870 MA |
604 | if (fe->ops.tune) |
605 | fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s); | |
a5959dbe AO |
606 | if (params) |
607 | fepriv->parameters_out = *params; | |
c59e7870 | 608 | |
2fac9a0f | 609 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
c59e7870 | 610 | dprintk("%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
611 | dvb_frontend_add_event(fe, s); |
612 | fepriv->status = s; | |
613 | } | |
c59e7870 MA |
614 | break; |
615 | case DVBFE_ALGO_SW: | |
616 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); | |
70d90635 | 617 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
618 | break; |
619 | case DVBFE_ALGO_CUSTOM: | |
c59e7870 MA |
620 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
621 | if (fepriv->state & FESTATE_RETUNE) { | |
622 | dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__); | |
623 | fepriv->state = FESTATE_TUNED; | |
624 | } | |
625 | /* Case where we are going to search for a carrier | |
626 | * User asked us to retune again for some reason, possibly | |
627 | * requesting a search with a new set of parameters | |
628 | */ | |
629 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 630 | if (fe->ops.search) { |
61cb27af | 631 | fepriv->algo_status = fe->ops.search(fe, &fepriv->parameters_in); |
c59e7870 MA |
632 | /* We did do a search as was requested, the flags are |
633 | * now unset as well and has the flags wrt to search. | |
634 | */ | |
7bcbdf38 AJ |
635 | } else { |
636 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
637 | } | |
c59e7870 MA |
638 | } |
639 | /* Track the carrier if the search was successful */ | |
640 | if (fepriv->algo_status == DVBFE_ALGO_SEARCH_SUCCESS) { | |
c59e7870 | 641 | if (fe->ops.track) |
61cb27af | 642 | fe->ops.track(fe, &fepriv->parameters_in); |
7bcbdf38 AJ |
643 | } else { |
644 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
645 | fepriv->delay = HZ / 2; | |
646 | } | |
a5959dbe | 647 | fepriv->parameters_out = fepriv->parameters_in; |
7bcbdf38 AJ |
648 | fe->ops.read_status(fe, &s); |
649 | if (s != fepriv->status) { | |
650 | dvb_frontend_add_event(fe, s); /* update event list */ | |
651 | fepriv->status = s; | |
652 | if (!(s & FE_HAS_LOCK)) { | |
653 | fepriv->delay = HZ / 10; | |
654 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
655 | } else { | |
656 | fepriv->delay = 60 * HZ; | |
657 | } | |
c59e7870 MA |
658 | } |
659 | break; | |
660 | default: | |
661 | dprintk("%s: UNDEFINED ALGO !\n", __func__); | |
662 | break; | |
663 | } | |
664 | } else { | |
4a4edcca | 665 | dvb_frontend_swzigzag(fe); |
c59e7870 | 666 | } |
1da177e4 LT |
667 | } |
668 | ||
608f62d6 OE |
669 | if (dvb_powerdown_on_sleep) { |
670 | if (fe->ops.set_voltage) | |
671 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 672 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
673 | if (fe->ops.i2c_gate_ctrl) |
674 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
675 | fe->ops.tuner_ops.sleep(fe); |
676 | if (fe->ops.i2c_gate_ctrl) | |
677 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 678 | } |
dea74869 PB |
679 | if (fe->ops.sleep) |
680 | fe->ops.sleep(fe); | |
1da177e4 LT |
681 | } |
682 | ||
8eec1429 | 683 | fepriv->thread = NULL; |
e36309f5 MC |
684 | if (kthread_should_stop()) |
685 | fepriv->exit = DVB_FE_DEVICE_REMOVED; | |
686 | else | |
687 | fepriv->exit = DVB_FE_NO_EXIT; | |
1da177e4 LT |
688 | mb(); |
689 | ||
690 | dvb_frontend_wakeup(fe); | |
691 | return 0; | |
692 | } | |
693 | ||
694 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
695 | { | |
0c53c70f | 696 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 697 | |
46b4f7c1 | 698 | dprintk ("%s\n", __func__); |
1da177e4 | 699 | |
e36309f5 | 700 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
701 | mb(); |
702 | ||
8eec1429 | 703 | if (!fepriv->thread) |
1da177e4 LT |
704 | return; |
705 | ||
8eec1429 | 706 | kthread_stop(fepriv->thread); |
ca5be9cd | 707 | |
a0a4714c | 708 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
709 | fepriv->state = FESTATE_IDLE; |
710 | ||
711 | /* paranoia check in case a signal arrived */ | |
8eec1429 HP |
712 | if (fepriv->thread) |
713 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", | |
714 | fepriv->thread); | |
1da177e4 LT |
715 | } |
716 | ||
83b75b04 N |
717 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
718 | { | |
719 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
720 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
721 | curtime.tv_usec - lasttime.tv_usec); | |
722 | } | |
723 | EXPORT_SYMBOL(timeval_usec_diff); | |
724 | ||
725 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
726 | { | |
727 | curtime->tv_usec += add_usec; | |
728 | if (curtime->tv_usec >= 1000000) { | |
729 | curtime->tv_usec -= 1000000; | |
730 | curtime->tv_sec++; | |
731 | } | |
732 | } | |
733 | ||
734 | /* | |
735 | * Sleep until gettimeofday() > waketime + add_usec | |
736 | * This needs to be as precise as possible, but as the delay is | |
737 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
738 | * followed by usleep (normally a busy-wait loop) for the remainder | |
739 | */ | |
740 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
741 | { | |
742 | struct timeval lasttime; | |
743 | s32 delta, newdelta; | |
744 | ||
745 | timeval_usec_add(waketime, add_usec); | |
746 | ||
747 | do_gettimeofday(&lasttime); | |
748 | delta = timeval_usec_diff(lasttime, *waketime); | |
749 | if (delta > 2500) { | |
750 | msleep((delta - 1500) / 1000); | |
751 | do_gettimeofday(&lasttime); | |
752 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
753 | delta = (newdelta > delta) ? 0 : newdelta; | |
754 | } | |
755 | if (delta > 0) | |
756 | udelay(delta); | |
757 | } | |
758 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
759 | ||
1da177e4 LT |
760 | static int dvb_frontend_start(struct dvb_frontend *fe) |
761 | { | |
762 | int ret; | |
0c53c70f | 763 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 764 | struct task_struct *fe_thread; |
1da177e4 | 765 | |
46b4f7c1 | 766 | dprintk ("%s\n", __func__); |
1da177e4 | 767 | |
8eec1429 | 768 | if (fepriv->thread) { |
e36309f5 | 769 | if (fepriv->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
770 | return 0; |
771 | else | |
772 | dvb_frontend_stop (fe); | |
773 | } | |
774 | ||
775 | if (signal_pending(current)) | |
776 | return -EINTR; | |
777 | if (down_interruptible (&fepriv->sem)) | |
778 | return -EINTR; | |
779 | ||
780 | fepriv->state = FESTATE_IDLE; | |
e36309f5 | 781 | fepriv->exit = DVB_FE_NO_EXIT; |
8eec1429 | 782 | fepriv->thread = NULL; |
1da177e4 LT |
783 | mb(); |
784 | ||
8eec1429 | 785 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 786 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
787 | if (IS_ERR(fe_thread)) { |
788 | ret = PTR_ERR(fe_thread); | |
789 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); | |
1da177e4 LT |
790 | up(&fepriv->sem); |
791 | return ret; | |
792 | } | |
8eec1429 | 793 | fepriv->thread = fe_thread; |
1da177e4 LT |
794 | return 0; |
795 | } | |
796 | ||
2030c032 | 797 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
798 | u32 *freq_min, u32 *freq_max) |
799 | { | |
800 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
801 | ||
802 | if (fe->ops.info.frequency_max == 0) | |
803 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
804 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
805 | *freq_max = fe->ops.info.frequency_max; | |
806 | else | |
807 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
808 | ||
809 | if (*freq_min == 0 || *freq_max == 0) | |
363c35fc ST |
810 | printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
811 | fe->dvb->num,fe->id); | |
c471b331 OE |
812 | } |
813 | ||
1fab46f0 OE |
814 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe, |
815 | struct dvb_frontend_parameters *parms) | |
816 | { | |
c471b331 OE |
817 | u32 freq_min; |
818 | u32 freq_max; | |
819 | ||
1fab46f0 | 820 | /* range check: frequency */ |
2030c032 | 821 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
c471b331 OE |
822 | if ((freq_min && parms->frequency < freq_min) || |
823 | (freq_max && parms->frequency > freq_max)) { | |
363c35fc ST |
824 | printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
825 | fe->dvb->num, fe->id, parms->frequency, freq_min, freq_max); | |
1fab46f0 OE |
826 | return -EINVAL; |
827 | } | |
828 | ||
829 | /* range check: symbol rate */ | |
830 | if (fe->ops.info.type == FE_QPSK) { | |
831 | if ((fe->ops.info.symbol_rate_min && | |
832 | parms->u.qpsk.symbol_rate < fe->ops.info.symbol_rate_min) || | |
833 | (fe->ops.info.symbol_rate_max && | |
834 | parms->u.qpsk.symbol_rate > fe->ops.info.symbol_rate_max)) { | |
363c35fc ST |
835 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
836 | fe->dvb->num, fe->id, parms->u.qpsk.symbol_rate, | |
1fab46f0 OE |
837 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
838 | return -EINVAL; | |
839 | } | |
840 | ||
841 | } else if (fe->ops.info.type == FE_QAM) { | |
842 | if ((fe->ops.info.symbol_rate_min && | |
843 | parms->u.qam.symbol_rate < fe->ops.info.symbol_rate_min) || | |
844 | (fe->ops.info.symbol_rate_max && | |
845 | parms->u.qam.symbol_rate > fe->ops.info.symbol_rate_max)) { | |
363c35fc ST |
846 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
847 | fe->dvb->num, fe->id, parms->u.qam.symbol_rate, | |
1fab46f0 OE |
848 | fe->ops.info.symbol_rate_min, fe->ops.info.symbol_rate_max); |
849 | return -EINVAL; | |
850 | } | |
851 | } | |
852 | ||
f51fad85 JG |
853 | /* check for supported modulation */ |
854 | if (fe->ops.info.type == FE_QAM && | |
855 | (parms->u.qam.modulation > QAM_AUTO || | |
856 | !((1 << (parms->u.qam.modulation + 10)) & fe->ops.info.caps))) { | |
857 | printk(KERN_WARNING "DVB: adapter %i frontend %i modulation %u not supported\n", | |
858 | fe->dvb->num, fe->id, parms->u.qam.modulation); | |
859 | return -EINVAL; | |
860 | } | |
861 | ||
1fab46f0 OE |
862 | return 0; |
863 | } | |
864 | ||
b6e760f3 PB |
865 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
866 | { | |
50727719 | 867 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 PB |
868 | int i; |
869 | ||
50727719 AO |
870 | memset(c, 0, sizeof(struct dtv_frontend_properties)); |
871 | ||
872 | c->state = DTV_CLEAR; | |
873 | c->delivery_system = SYS_UNDEFINED; | |
874 | c->inversion = INVERSION_AUTO; | |
875 | c->fec_inner = FEC_AUTO; | |
876 | c->transmission_mode = TRANSMISSION_MODE_AUTO; | |
877 | c->bandwidth_hz = BANDWIDTH_AUTO; | |
878 | c->guard_interval = GUARD_INTERVAL_AUTO; | |
879 | c->hierarchy = HIERARCHY_AUTO; | |
880 | c->symbol_rate = QAM_AUTO; | |
881 | c->code_rate_HP = FEC_AUTO; | |
882 | c->code_rate_LP = FEC_AUTO; | |
39ce61a8 | 883 | c->rolloff = ROLLOFF_AUTO; |
50727719 AO |
884 | |
885 | c->isdbt_partial_reception = -1; | |
886 | c->isdbt_sb_mode = -1; | |
887 | c->isdbt_sb_subchannel = -1; | |
888 | c->isdbt_sb_segment_idx = -1; | |
889 | c->isdbt_sb_segment_count = -1; | |
890 | c->isdbt_layer_enabled = 0x7; | |
b6e760f3 | 891 | for (i = 0; i < 3; i++) { |
50727719 AO |
892 | c->layer[i].fec = FEC_AUTO; |
893 | c->layer[i].modulation = QAM_AUTO; | |
894 | c->layer[i].interleaving = -1; | |
895 | c->layer[i].segment_count = -1; | |
b6e760f3 PB |
896 | } |
897 | ||
898 | return 0; | |
899 | } | |
900 | ||
901 | #define _DTV_CMD(n, s, b) \ | |
902 | [n] = { \ | |
903 | .name = #n, \ | |
904 | .cmd = n, \ | |
905 | .set = s,\ | |
906 | .buffer = b \ | |
907 | } | |
908 | ||
ec05a642 | 909 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
910 | _DTV_CMD(DTV_TUNE, 1, 0), |
911 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
912 | |
913 | /* Set */ | |
06d3a396 MCC |
914 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
915 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
916 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
917 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
918 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
919 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
920 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
921 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
922 | _DTV_CMD(DTV_TONE, 1, 0), | |
923 | _DTV_CMD(DTV_PILOT, 1, 0), | |
924 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
925 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
926 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
927 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
928 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
929 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
930 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
b6e760f3 PB |
931 | |
932 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
933 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
934 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
935 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
936 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 937 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
938 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
939 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
940 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
941 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
942 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
943 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
944 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
945 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
946 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
947 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
948 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
949 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
950 | ||
951 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 0, 0), | |
952 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 0, 0), | |
953 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 0, 0), | |
954 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 0, 0), | |
955 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 0, 0), | |
e7b7949a | 956 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 0, 0), |
b6e760f3 PB |
957 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 0, 0), |
958 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 0, 0), | |
959 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 0, 0), | |
960 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 0, 0), | |
961 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 0, 0), | |
962 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 0, 0), | |
963 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 0, 0), | |
964 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 0, 0), | |
965 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 0, 0), | |
966 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 0, 0), | |
967 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 0, 0), | |
968 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 0, 0), | |
969 | ||
98293ef3 | 970 | _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0), |
ec05a642 | 971 | _DTV_CMD(DTV_DVBT2_PLP_ID, 1, 0), |
98293ef3 | 972 | |
6b73eeaf | 973 | /* Get */ |
06d3a396 MCC |
974 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
975 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
976 | _DTV_CMD(DTV_CODE_RATE_HP, 0, 0), | |
977 | _DTV_CMD(DTV_CODE_RATE_LP, 0, 0), | |
978 | _DTV_CMD(DTV_GUARD_INTERVAL, 0, 0), | |
979 | _DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0), | |
980 | _DTV_CMD(DTV_HIERARCHY, 0, 0), | |
ba2780c7 MA |
981 | |
982 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
6b73eeaf ST |
983 | }; |
984 | ||
072ce0c5 | 985 | static void dtv_property_dump(struct dtv_property *tvp) |
6b73eeaf ST |
986 | { |
987 | int i; | |
988 | ||
106ff9e0 | 989 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
a1bc84c0 | 990 | printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n", |
4aae8efb DB |
991 | __func__, tvp->cmd); |
992 | return; | |
993 | } | |
994 | ||
a1bc84c0 ST |
995 | dprintk("%s() tvp.cmd = 0x%08x (%s)\n" |
996 | ,__func__ | |
6b73eeaf | 997 | ,tvp->cmd |
56f0680a | 998 | ,dtv_cmds[ tvp->cmd ].name); |
6b73eeaf | 999 | |
56f0680a | 1000 | if(dtv_cmds[ tvp->cmd ].buffer) { |
6b73eeaf | 1001 | |
a1bc84c0 ST |
1002 | dprintk("%s() tvp.u.buffer.len = 0x%02x\n" |
1003 | ,__func__ | |
6b73eeaf ST |
1004 | ,tvp->u.buffer.len); |
1005 | ||
1006 | for(i = 0; i < tvp->u.buffer.len; i++) | |
a1bc84c0 ST |
1007 | dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
1008 | ,__func__ | |
6b73eeaf ST |
1009 | ,i |
1010 | ,tvp->u.buffer.data[i]); | |
1011 | ||
1012 | } else | |
a1bc84c0 | 1013 | dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data); |
6b73eeaf ST |
1014 | } |
1015 | ||
072ce0c5 | 1016 | static int is_legacy_delivery_system(fe_delivery_system_t s) |
6b73eeaf | 1017 | { |
fd66c45d | 1018 | if((s == SYS_UNDEFINED) || (s == SYS_DVBC_ANNEX_A) || |
3fa37deb DH |
1019 | (s == SYS_DVBC_ANNEX_B) || (s == SYS_DVBT) || (s == SYS_DVBS) || |
1020 | (s == SYS_ATSC)) | |
6b73eeaf ST |
1021 | return 1; |
1022 | ||
1023 | return 0; | |
1024 | } | |
1025 | ||
674ce343 AO |
1026 | /* Initialize the cache with some default values derived from the |
1027 | * legacy frontend_info structure. | |
1028 | */ | |
1029 | static void dtv_property_cache_init(struct dvb_frontend *fe, | |
1030 | struct dtv_frontend_properties *c) | |
1031 | { | |
1032 | switch (fe->ops.info.type) { | |
1033 | case FE_QPSK: | |
1034 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
1035 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
1036 | c->delivery_system = SYS_DVBS; | |
1037 | break; | |
1038 | case FE_QAM: | |
fd66c45d | 1039 | c->delivery_system = SYS_DVBC_ANNEX_A; |
674ce343 AO |
1040 | break; |
1041 | case FE_OFDM: | |
1042 | c->delivery_system = SYS_DVBT; | |
1043 | break; | |
1044 | case FE_ATSC: | |
1045 | break; | |
1046 | } | |
1047 | } | |
1048 | ||
ee33c525 ST |
1049 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1050 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1051 | * it's being used for the legacy or new API, reducing code and complexity. | |
1052 | */ | |
072ce0c5 | 1053 | static void dtv_property_cache_sync(struct dvb_frontend *fe, |
bbe880b4 AO |
1054 | struct dtv_frontend_properties *c, |
1055 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1056 | { |
ee33c525 ST |
1057 | c->frequency = p->frequency; |
1058 | c->inversion = p->inversion; | |
1059 | ||
1060 | switch (fe->ops.info.type) { | |
1061 | case FE_QPSK: | |
1062 | c->symbol_rate = p->u.qpsk.symbol_rate; | |
1063 | c->fec_inner = p->u.qpsk.fec_inner; | |
1064 | break; | |
1065 | case FE_QAM: | |
1066 | c->symbol_rate = p->u.qam.symbol_rate; | |
1067 | c->fec_inner = p->u.qam.fec_inner; | |
1068 | c->modulation = p->u.qam.modulation; | |
1069 | break; | |
1070 | case FE_OFDM: | |
75b7f943 ST |
1071 | if (p->u.ofdm.bandwidth == BANDWIDTH_6_MHZ) |
1072 | c->bandwidth_hz = 6000000; | |
1073 | else if (p->u.ofdm.bandwidth == BANDWIDTH_7_MHZ) | |
1074 | c->bandwidth_hz = 7000000; | |
1075 | else if (p->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) | |
1076 | c->bandwidth_hz = 8000000; | |
1077 | else | |
1078 | /* Including BANDWIDTH_AUTO */ | |
1079 | c->bandwidth_hz = 0; | |
ee33c525 ST |
1080 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1081 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1082 | c->modulation = p->u.ofdm.constellation; | |
1083 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1084 | c->guard_interval = p->u.ofdm.guard_interval; | |
1085 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1086 | break; | |
1087 | case FE_ATSC: | |
1088 | c->modulation = p->u.vsb.modulation; | |
80a773c9 ST |
1089 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1090 | c->delivery_system = SYS_ATSC; | |
1091 | else | |
1092 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 ST |
1093 | break; |
1094 | } | |
1095 | } | |
1096 | ||
d5748f10 ST |
1097 | /* Ensure the cached values are set correctly in the frontend |
1098 | * legacy tuning structures, for the advanced tuning API. | |
1099 | */ | |
072ce0c5 | 1100 | static void dtv_property_legacy_params_sync(struct dvb_frontend *fe) |
6b73eeaf | 1101 | { |
15cc2bb3 | 1102 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
d5748f10 | 1103 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
61cb27af | 1104 | struct dvb_frontend_parameters *p = &fepriv->parameters_in; |
6b73eeaf | 1105 | |
d5748f10 ST |
1106 | p->frequency = c->frequency; |
1107 | p->inversion = c->inversion; | |
6b73eeaf | 1108 | |
d5748f10 ST |
1109 | switch (fe->ops.info.type) { |
1110 | case FE_QPSK: | |
a1bc84c0 | 1111 | dprintk("%s() Preparing QPSK req\n", __func__); |
d5748f10 ST |
1112 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1113 | p->u.qpsk.fec_inner = c->fec_inner; | |
1114 | break; | |
1115 | case FE_QAM: | |
a1bc84c0 | 1116 | dprintk("%s() Preparing QAM req\n", __func__); |
d5748f10 ST |
1117 | p->u.qam.symbol_rate = c->symbol_rate; |
1118 | p->u.qam.fec_inner = c->fec_inner; | |
1119 | p->u.qam.modulation = c->modulation; | |
1120 | break; | |
1121 | case FE_OFDM: | |
a1bc84c0 | 1122 | dprintk("%s() Preparing OFDM req\n", __func__); |
75b7f943 ST |
1123 | if (c->bandwidth_hz == 6000000) |
1124 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1125 | else if (c->bandwidth_hz == 7000000) | |
1126 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1127 | else if (c->bandwidth_hz == 8000000) | |
1128 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
1129 | else | |
1130 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; | |
d5748f10 ST |
1131 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1132 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1133 | p->u.ofdm.constellation = c->modulation; | |
1134 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1135 | p->u.ofdm.guard_interval = c->guard_interval; | |
1136 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1137 | break; | |
1138 | case FE_ATSC: | |
a1bc84c0 | 1139 | dprintk("%s() Preparing VSB req\n", __func__); |
d5748f10 ST |
1140 | p->u.vsb.modulation = c->modulation; |
1141 | break; | |
1142 | } | |
1143 | } | |
1144 | ||
1145 | /* Ensure the cached values are set correctly in the frontend | |
1146 | * legacy tuning structures, for the legacy tuning API. | |
1147 | */ | |
072ce0c5 | 1148 | static void dtv_property_adv_params_sync(struct dvb_frontend *fe) |
d5748f10 | 1149 | { |
fd66c45d | 1150 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1151 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
61cb27af | 1152 | struct dvb_frontend_parameters *p = &fepriv->parameters_in; |
fd66c45d | 1153 | u32 rolloff = 0; |
6b73eeaf | 1154 | |
d5748f10 ST |
1155 | p->frequency = c->frequency; |
1156 | p->inversion = c->inversion; | |
1157 | ||
14f55794 AO |
1158 | if (c->delivery_system == SYS_DSS || |
1159 | c->delivery_system == SYS_DVBS || | |
1160 | c->delivery_system == SYS_DVBS2 || | |
1161 | c->delivery_system == SYS_ISDBS || | |
1162 | c->delivery_system == SYS_TURBO) { | |
d5748f10 ST |
1163 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1164 | p->u.qpsk.fec_inner = c->fec_inner; | |
d5748f10 ST |
1165 | } |
1166 | ||
94d56ffa AO |
1167 | /* Fake out a generic DVB-T request so we pass validation in the ioctl */ |
1168 | if ((c->delivery_system == SYS_ISDBT) || | |
1169 | (c->delivery_system == SYS_DVBT2)) { | |
d5748f10 ST |
1170 | p->u.ofdm.constellation = QAM_AUTO; |
1171 | p->u.ofdm.code_rate_HP = FEC_AUTO; | |
1172 | p->u.ofdm.code_rate_LP = FEC_AUTO; | |
d5748f10 ST |
1173 | p->u.ofdm.transmission_mode = TRANSMISSION_MODE_AUTO; |
1174 | p->u.ofdm.guard_interval = GUARD_INTERVAL_AUTO; | |
1175 | p->u.ofdm.hierarchy_information = HIERARCHY_AUTO; | |
b6e760f3 PB |
1176 | if (c->bandwidth_hz == 8000000) |
1177 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; | |
1178 | else if (c->bandwidth_hz == 7000000) | |
1179 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1180 | else if (c->bandwidth_hz == 6000000) | |
1181 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1182 | else | |
1183 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; | |
d5748f10 | 1184 | } |
fd66c45d MCC |
1185 | |
1186 | /* | |
0607d077 MCC |
1187 | * Be sure that the bandwidth will be filled for all |
1188 | * non-satellite systems, as tuners need to know what | |
1189 | * low pass/Nyquist half filter should be applied, in | |
1190 | * order to avoid inter-channel noise. | |
1191 | * | |
1192 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
1193 | * ATSC and DVB-C don't set, so, the core should fill it. | |
1194 | * | |
1195 | * On DVB-C Annex A and C, the bandwidth is a function of | |
1196 | * the roll-off and symbol rate. Annex B defines different | |
1197 | * roll-off factors depending on the modulation. Fortunately, | |
1198 | * Annex B is only used with 6MHz, so there's no need to | |
1199 | * calculate it. | |
1200 | * | |
fd66c45d MCC |
1201 | * While not officially supported, a side effect of handling it at |
1202 | * the cache level is that a program could retrieve the bandwidth | |
0607d077 | 1203 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. |
fd66c45d | 1204 | */ |
0607d077 MCC |
1205 | switch (c->delivery_system) { |
1206 | case SYS_ATSC: | |
1207 | case SYS_DVBC_ANNEX_B: | |
1208 | c->bandwidth_hz = 6000000; | |
1209 | break; | |
1210 | case SYS_DVBC_ANNEX_A: | |
fd66c45d | 1211 | rolloff = 115; |
0607d077 MCC |
1212 | break; |
1213 | case SYS_DVBC_ANNEX_C: | |
fd66c45d | 1214 | rolloff = 113; |
0607d077 MCC |
1215 | break; |
1216 | default: | |
1217 | break; | |
1218 | } | |
fd66c45d MCC |
1219 | if (rolloff) |
1220 | c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; | |
d5748f10 ST |
1221 | } |
1222 | ||
072ce0c5 | 1223 | static void dtv_property_cache_submit(struct dvb_frontend *fe) |
d5748f10 | 1224 | { |
15cc2bb3 | 1225 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
d5748f10 | 1226 | |
d5748f10 ST |
1227 | /* For legacy delivery systems we don't need the delivery_system to |
1228 | * be specified, but we populate the older structures from the cache | |
1229 | * so we can call set_frontend on older drivers. | |
1230 | */ | |
6b73eeaf | 1231 | if(is_legacy_delivery_system(c->delivery_system)) { |
6b73eeaf | 1232 | |
a1bc84c0 | 1233 | dprintk("%s() legacy, modulation = %d\n", __func__, c->modulation); |
d5748f10 | 1234 | dtv_property_legacy_params_sync(fe); |
6b73eeaf | 1235 | |
6b73eeaf | 1236 | } else { |
a1bc84c0 | 1237 | dprintk("%s() adv, modulation = %d\n", __func__, c->modulation); |
d5748f10 | 1238 | |
6b73eeaf ST |
1239 | /* For advanced delivery systems / modulation types ... |
1240 | * we seed the lecacy dvb_frontend_parameters structure | |
1241 | * so that the sanity checking code later in the IOCTL processing | |
1242 | * can validate our basic frequency ranges, symbolrates, modulation | |
1243 | * etc. | |
1244 | */ | |
d5748f10 | 1245 | dtv_property_adv_params_sync(fe); |
6b73eeaf | 1246 | } |
6b73eeaf ST |
1247 | } |
1248 | ||
16ef8def | 1249 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1250 | unsigned int cmd, void *parg); |
16ef8def | 1251 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1252 | unsigned int cmd, void *parg); |
1253 | ||
ba2780c7 MA |
1254 | static void dtv_set_default_delivery_caps(const struct dvb_frontend *fe, struct dtv_property *p) |
1255 | { | |
1256 | const struct dvb_frontend_info *info = &fe->ops.info; | |
1257 | u32 ncaps = 0; | |
1258 | ||
eeacf147 MCC |
1259 | /* |
1260 | * If the frontend explicitly sets a list, use it, instead of | |
1261 | * filling based on the info->type | |
1262 | */ | |
1263 | if (fe->ops.delsys[ncaps]) { | |
1264 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1265 | p->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; | |
1266 | ncaps++; | |
1267 | } | |
1268 | p->u.buffer.len = ncaps; | |
1269 | return; | |
1270 | } | |
1271 | ||
ba2780c7 MA |
1272 | switch (info->type) { |
1273 | case FE_QPSK: | |
1274 | p->u.buffer.data[ncaps++] = SYS_DVBS; | |
1275 | if (info->caps & FE_CAN_2G_MODULATION) | |
1276 | p->u.buffer.data[ncaps++] = SYS_DVBS2; | |
1277 | if (info->caps & FE_CAN_TURBO_FEC) | |
1278 | p->u.buffer.data[ncaps++] = SYS_TURBO; | |
1279 | break; | |
1280 | case FE_QAM: | |
0349471b | 1281 | p->u.buffer.data[ncaps++] = SYS_DVBC_ANNEX_A; |
ba2780c7 MA |
1282 | break; |
1283 | case FE_OFDM: | |
1284 | p->u.buffer.data[ncaps++] = SYS_DVBT; | |
1285 | if (info->caps & FE_CAN_2G_MODULATION) | |
1286 | p->u.buffer.data[ncaps++] = SYS_DVBT2; | |
1287 | break; | |
1288 | case FE_ATSC: | |
1289 | if (info->caps & (FE_CAN_8VSB | FE_CAN_16VSB)) | |
1290 | p->u.buffer.data[ncaps++] = SYS_ATSC; | |
1291 | if (info->caps & (FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_128 | FE_CAN_QAM_256)) | |
1292 | p->u.buffer.data[ncaps++] = SYS_DVBC_ANNEX_B; | |
1293 | break; | |
1294 | } | |
1295 | p->u.buffer.len = ncaps; | |
1296 | } | |
1297 | ||
072ce0c5 MCC |
1298 | static int dtv_property_process_get(struct dvb_frontend *fe, |
1299 | struct dtv_property *tvp, | |
16ef8def | 1300 | struct file *file) |
363429a0 | 1301 | { |
50727719 | 1302 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
bbe880b4 AO |
1303 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1304 | struct dtv_frontend_properties cdetected; | |
e23d9ae3 | 1305 | int r; |
bfbf2dae | 1306 | |
bbe880b4 AO |
1307 | /* |
1308 | * If the driver implements a get_frontend function, then convert | |
1309 | * detected parameters to S2API properties. | |
1310 | */ | |
1311 | if (fe->ops.get_frontend) { | |
1312 | cdetected = *c; | |
1313 | dtv_property_cache_sync(fe, &cdetected, &fepriv->parameters_out); | |
1314 | c = &cdetected; | |
1315 | } | |
1316 | ||
363429a0 | 1317 | switch(tvp->cmd) { |
ba2780c7 MA |
1318 | case DTV_ENUM_DELSYS: |
1319 | dtv_set_default_delivery_caps(fe, tvp); | |
1320 | break; | |
363429a0 | 1321 | case DTV_FREQUENCY: |
50727719 | 1322 | tvp->u.data = c->frequency; |
363429a0 ST |
1323 | break; |
1324 | case DTV_MODULATION: | |
50727719 | 1325 | tvp->u.data = c->modulation; |
363429a0 | 1326 | break; |
75b7f943 | 1327 | case DTV_BANDWIDTH_HZ: |
50727719 | 1328 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1329 | break; |
1330 | case DTV_INVERSION: | |
50727719 | 1331 | tvp->u.data = c->inversion; |
363429a0 ST |
1332 | break; |
1333 | case DTV_SYMBOL_RATE: | |
50727719 | 1334 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1335 | break; |
1336 | case DTV_INNER_FEC: | |
50727719 | 1337 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1338 | break; |
1339 | case DTV_PILOT: | |
50727719 | 1340 | tvp->u.data = c->pilot; |
363429a0 ST |
1341 | break; |
1342 | case DTV_ROLLOFF: | |
50727719 | 1343 | tvp->u.data = c->rolloff; |
363429a0 ST |
1344 | break; |
1345 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1346 | tvp->u.data = c->delivery_system; |
363429a0 | 1347 | break; |
363429a0 | 1348 | case DTV_VOLTAGE: |
50727719 | 1349 | tvp->u.data = c->voltage; |
363429a0 ST |
1350 | break; |
1351 | case DTV_TONE: | |
50727719 | 1352 | tvp->u.data = c->sectone; |
363429a0 | 1353 | break; |
eacf8d8d ST |
1354 | case DTV_API_VERSION: |
1355 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1356 | break; | |
a4de91be | 1357 | case DTV_CODE_RATE_HP: |
50727719 | 1358 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1359 | break; |
1360 | case DTV_CODE_RATE_LP: | |
50727719 | 1361 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1362 | break; |
b87625f0 | 1363 | case DTV_GUARD_INTERVAL: |
50727719 | 1364 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1365 | break; |
1366 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1367 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1368 | break; |
ef526f42 | 1369 | case DTV_HIERARCHY: |
50727719 | 1370 | tvp->u.data = c->hierarchy; |
ef526f42 | 1371 | break; |
b6e760f3 PB |
1372 | |
1373 | /* ISDB-T Support here */ | |
1374 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1375 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1376 | break; |
1377 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1378 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1379 | break; |
1380 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1381 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1382 | break; |
1383 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1384 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1385 | break; |
1386 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1387 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1388 | break; |
e7b7949a | 1389 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1390 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1391 | break; |
b6e760f3 | 1392 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1393 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1394 | break; |
1395 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1396 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1397 | break; |
1398 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1399 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1400 | break; |
1401 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1402 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1403 | break; |
1404 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1405 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1406 | break; |
1407 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1408 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1409 | break; |
1410 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1411 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1412 | break; |
1413 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1414 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1415 | break; |
1416 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1417 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1418 | break; |
1419 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1420 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1421 | break; |
1422 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1423 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1424 | break; |
1425 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1426 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1427 | break; |
98293ef3 | 1428 | case DTV_ISDBS_TS_ID: |
50727719 | 1429 | tvp->u.data = c->isdbs_ts_id; |
98293ef3 | 1430 | break; |
94d56ffa | 1431 | case DTV_DVBT2_PLP_ID: |
50727719 | 1432 | tvp->u.data = c->dvbt2_plp_id; |
94d56ffa | 1433 | break; |
363429a0 | 1434 | default: |
aff8ab5c | 1435 | return -EINVAL; |
363429a0 ST |
1436 | } |
1437 | ||
e23d9ae3 AO |
1438 | /* Allow the frontend to override outgoing properties */ |
1439 | if (fe->ops.get_property) { | |
1440 | r = fe->ops.get_property(fe, tvp); | |
1441 | if (r < 0) | |
1442 | return r; | |
1443 | } | |
1444 | ||
639544d7 MCC |
1445 | dtv_property_dump(tvp); |
1446 | ||
aff8ab5c | 1447 | return 0; |
363429a0 ST |
1448 | } |
1449 | ||
072ce0c5 MCC |
1450 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1451 | struct dtv_property *tvp, | |
072ce0c5 | 1452 | struct file *file) |
6b73eeaf ST |
1453 | { |
1454 | int r = 0; | |
50727719 | 1455 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
13c97bf5 | 1456 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
56f0680a | 1457 | dtv_property_dump(tvp); |
6b73eeaf | 1458 | |
bfbf2dae | 1459 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1460 | if (fe->ops.set_property) { |
bfbf2dae | 1461 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1462 | if (r < 0) |
1463 | return r; | |
1464 | } | |
bfbf2dae | 1465 | |
6b73eeaf | 1466 | switch(tvp->cmd) { |
e7fee0f3 | 1467 | case DTV_CLEAR: |
6b73eeaf ST |
1468 | /* Reset a cache of data specific to the frontend here. This does |
1469 | * not effect hardware. | |
1470 | */ | |
b6e760f3 | 1471 | dvb_frontend_clear_cache(fe); |
a1bc84c0 | 1472 | dprintk("%s() Flushing property cache\n", __func__); |
6b73eeaf | 1473 | break; |
e7fee0f3 | 1474 | case DTV_TUNE: |
6b73eeaf | 1475 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1476 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1477 | * ioctl. | |
6b73eeaf | 1478 | */ |
50727719 | 1479 | c->state = tvp->cmd; |
a1bc84c0 | 1480 | dprintk("%s() Finalised property cache\n", __func__); |
d5748f10 ST |
1481 | dtv_property_cache_submit(fe); |
1482 | ||
aff8ab5c | 1483 | r = dvb_frontend_ioctl_legacy(file, FE_SET_FRONTEND, |
61cb27af | 1484 | &fepriv->parameters_in); |
6b73eeaf | 1485 | break; |
363429a0 | 1486 | case DTV_FREQUENCY: |
50727719 | 1487 | c->frequency = tvp->u.data; |
6b73eeaf | 1488 | break; |
363429a0 | 1489 | case DTV_MODULATION: |
50727719 | 1490 | c->modulation = tvp->u.data; |
6b73eeaf | 1491 | break; |
75b7f943 | 1492 | case DTV_BANDWIDTH_HZ: |
50727719 | 1493 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1494 | break; |
363429a0 | 1495 | case DTV_INVERSION: |
50727719 | 1496 | c->inversion = tvp->u.data; |
6b73eeaf | 1497 | break; |
363429a0 | 1498 | case DTV_SYMBOL_RATE: |
50727719 | 1499 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1500 | break; |
363429a0 | 1501 | case DTV_INNER_FEC: |
50727719 | 1502 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1503 | break; |
363429a0 | 1504 | case DTV_PILOT: |
50727719 | 1505 | c->pilot = tvp->u.data; |
6b73eeaf | 1506 | break; |
363429a0 | 1507 | case DTV_ROLLOFF: |
50727719 | 1508 | c->rolloff = tvp->u.data; |
6b73eeaf | 1509 | break; |
363429a0 | 1510 | case DTV_DELIVERY_SYSTEM: |
50727719 | 1511 | c->delivery_system = tvp->u.data; |
6b73eeaf | 1512 | break; |
363429a0 | 1513 | case DTV_VOLTAGE: |
50727719 | 1514 | c->voltage = tvp->u.data; |
16ef8def | 1515 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1516 | (void *)c->voltage); |
13c97bf5 | 1517 | break; |
363429a0 | 1518 | case DTV_TONE: |
50727719 | 1519 | c->sectone = tvp->u.data; |
16ef8def | 1520 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1521 | (void *)c->sectone); |
13c97bf5 | 1522 | break; |
a4de91be | 1523 | case DTV_CODE_RATE_HP: |
50727719 | 1524 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1525 | break; |
1526 | case DTV_CODE_RATE_LP: | |
50727719 | 1527 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1528 | break; |
b87625f0 | 1529 | case DTV_GUARD_INTERVAL: |
50727719 | 1530 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1531 | break; |
1532 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1533 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1534 | break; |
ef526f42 | 1535 | case DTV_HIERARCHY: |
50727719 | 1536 | c->hierarchy = tvp->u.data; |
ef526f42 | 1537 | break; |
b6e760f3 PB |
1538 | |
1539 | /* ISDB-T Support here */ | |
1540 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1541 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1542 | break; |
1543 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1544 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1545 | break; |
1546 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1547 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1548 | break; |
1549 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1550 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1551 | break; |
1552 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1553 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1554 | break; |
e7b7949a | 1555 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1556 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1557 | break; |
b6e760f3 | 1558 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1559 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1560 | break; |
1561 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1562 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1563 | break; |
1564 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1565 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1566 | break; |
1567 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1568 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1569 | break; |
1570 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1571 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1572 | break; |
1573 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1574 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1575 | break; |
1576 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1577 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1578 | break; |
1579 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1580 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1581 | break; |
1582 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1583 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1584 | break; |
1585 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1586 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1587 | break; |
1588 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1589 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1590 | break; |
1591 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1592 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1593 | break; |
98293ef3 | 1594 | case DTV_ISDBS_TS_ID: |
50727719 | 1595 | c->isdbs_ts_id = tvp->u.data; |
94d56ffa AO |
1596 | break; |
1597 | case DTV_DVBT2_PLP_ID: | |
50727719 | 1598 | c->dvbt2_plp_id = tvp->u.data; |
98293ef3 | 1599 | break; |
363429a0 | 1600 | default: |
aff8ab5c | 1601 | return -EINVAL; |
6b73eeaf ST |
1602 | } |
1603 | ||
13c97bf5 | 1604 | return r; |
6b73eeaf ST |
1605 | } |
1606 | ||
16ef8def | 1607 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1608 | unsigned int cmd, void *parg) |
1609 | { | |
1610 | struct dvb_device *dvbdev = file->private_data; | |
1611 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1612 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1613 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
1614 | int err = -EOPNOTSUPP; |
1615 | ||
fb8253ba | 1616 | dprintk("%s (%d)\n", __func__, _IOC_NR(cmd)); |
1da177e4 | 1617 | |
e36309f5 | 1618 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
1619 | return -ENODEV; |
1620 | ||
1621 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1622 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
1623 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) | |
1624 | return -EPERM; | |
1625 | ||
1626 | if (down_interruptible (&fepriv->sem)) | |
1627 | return -ERESTARTSYS; | |
1628 | ||
13c97bf5 | 1629 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1630 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1631 | else { |
50727719 | 1632 | c->state = DTV_UNDEFINED; |
16ef8def | 1633 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1634 | } |
13c97bf5 ST |
1635 | |
1636 | up(&fepriv->sem); | |
1637 | return err; | |
1638 | } | |
1639 | ||
16ef8def | 1640 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1641 | unsigned int cmd, void *parg) |
1642 | { | |
1643 | struct dvb_device *dvbdev = file->private_data; | |
1644 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1645 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1646 | int err = 0; |
e7fee0f3 ST |
1647 | |
1648 | struct dtv_properties *tvps = NULL; | |
1649 | struct dtv_property *tvp = NULL; | |
1650 | int i; | |
13c97bf5 ST |
1651 | |
1652 | dprintk("%s\n", __func__); | |
1653 | ||
6b73eeaf | 1654 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1655 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1656 | |
a1bc84c0 ST |
1657 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1658 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1659 | |
1660 | /* Put an arbitrary limit on the number of messages that can | |
1661 | * be sent at once */ | |
6068f506 | 1662 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1663 | return -EINVAL; |
1664 | ||
6e3924aa | 1665 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1666 | if (!tvp) { |
1667 | err = -ENOMEM; | |
1668 | goto out; | |
6b73eeaf ST |
1669 | } |
1670 | ||
e7fee0f3 ST |
1671 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1672 | err = -EFAULT; | |
1673 | goto out; | |
1674 | } | |
1675 | ||
d48cb402 | 1676 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1677 | err = dtv_property_process_set(fe, tvp + i, file); |
1678 | if (err < 0) | |
1679 | goto out; | |
1680 | (tvp + i)->result = err; | |
d48cb402 | 1681 | } |
e7fee0f3 | 1682 | |
50727719 | 1683 | if (c->state == DTV_TUNE) |
a1bc84c0 | 1684 | dprintk("%s() Property cache is full, tuning\n", __func__); |
bfbf2dae | 1685 | |
363429a0 ST |
1686 | } else |
1687 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1688 | |
1689 | tvps = (struct dtv_properties __user *)parg; | |
1690 | ||
a1bc84c0 ST |
1691 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1692 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1693 | |
1694 | /* Put an arbitrary limit on the number of messages that can | |
1695 | * be sent at once */ | |
6068f506 | 1696 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1697 | return -EINVAL; |
1698 | ||
6e3924aa | 1699 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1700 | if (!tvp) { |
1701 | err = -ENOMEM; | |
1702 | goto out; | |
1703 | } | |
1704 | ||
1705 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1706 | err = -EFAULT; | |
1707 | goto out; | |
1708 | } | |
1709 | ||
d48cb402 | 1710 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1711 | err = dtv_property_process_get(fe, tvp + i, file); |
1712 | if (err < 0) | |
1713 | goto out; | |
1714 | (tvp + i)->result = err; | |
d48cb402 | 1715 | } |
363429a0 ST |
1716 | |
1717 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
1718 | err = -EFAULT; | |
1719 | goto out; | |
1720 | } | |
1721 | ||
363429a0 ST |
1722 | } else |
1723 | err = -EOPNOTSUPP; | |
1724 | ||
e7fee0f3 ST |
1725 | out: |
1726 | kfree(tvp); | |
13c97bf5 ST |
1727 | return err; |
1728 | } | |
1729 | ||
16ef8def | 1730 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
1731 | unsigned int cmd, void *parg) |
1732 | { | |
1733 | struct dvb_device *dvbdev = file->private_data; | |
1734 | struct dvb_frontend *fe = dvbdev->priv; | |
1735 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
9133aee0 MK |
1736 | int cb_err, err = -EOPNOTSUPP; |
1737 | ||
1738 | if (fe->dvb->fe_ioctl_override) { | |
1739 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1740 | DVB_FE_IOCTL_PRE); | |
1741 | if (cb_err < 0) | |
1742 | return cb_err; | |
1743 | if (cb_err > 0) | |
1744 | return 0; | |
1745 | /* fe_ioctl_override returning 0 allows | |
1746 | * dvb-core to continue handling the ioctl */ | |
1747 | } | |
13c97bf5 | 1748 | |
1da177e4 LT |
1749 | switch (cmd) { |
1750 | case FE_GET_INFO: { | |
0c53c70f | 1751 | struct dvb_frontend_info* info = parg; |
dea74869 | 1752 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 1753 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 LT |
1754 | |
1755 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't | |
1756 | * do it, it is done for it. */ | |
1757 | info->caps |= FE_CAN_INVERSION_AUTO; | |
1758 | err = 0; | |
1759 | break; | |
1760 | } | |
1761 | ||
6757ccc5 PB |
1762 | case FE_READ_STATUS: { |
1763 | fe_status_t* status = parg; | |
1764 | ||
25985edc | 1765 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 1766 | * that user get signal state from previous tuning */ |
01886255 JG |
1767 | if (fepriv->state == FESTATE_RETUNE || |
1768 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
1769 | err=0; |
1770 | *status = 0; | |
1771 | break; | |
1772 | } | |
1773 | ||
dea74869 PB |
1774 | if (fe->ops.read_status) |
1775 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 1776 | break; |
6757ccc5 | 1777 | } |
1da177e4 | 1778 | case FE_READ_BER: |
dea74869 PB |
1779 | if (fe->ops.read_ber) |
1780 | err = fe->ops.read_ber(fe, (__u32*) parg); | |
1da177e4 LT |
1781 | break; |
1782 | ||
1783 | case FE_READ_SIGNAL_STRENGTH: | |
dea74869 PB |
1784 | if (fe->ops.read_signal_strength) |
1785 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); | |
1da177e4 LT |
1786 | break; |
1787 | ||
1788 | case FE_READ_SNR: | |
dea74869 PB |
1789 | if (fe->ops.read_snr) |
1790 | err = fe->ops.read_snr(fe, (__u16*) parg); | |
1da177e4 LT |
1791 | break; |
1792 | ||
1793 | case FE_READ_UNCORRECTED_BLOCKS: | |
dea74869 PB |
1794 | if (fe->ops.read_ucblocks) |
1795 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); | |
1da177e4 LT |
1796 | break; |
1797 | ||
1798 | ||
1799 | case FE_DISEQC_RESET_OVERLOAD: | |
dea74869 PB |
1800 | if (fe->ops.diseqc_reset_overload) { |
1801 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
1802 | fepriv->state = FESTATE_DISEQC; |
1803 | fepriv->status = 0; | |
1804 | } | |
1805 | break; | |
1806 | ||
1807 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
1808 | if (fe->ops.diseqc_send_master_cmd) { |
1809 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
1810 | fepriv->state = FESTATE_DISEQC; |
1811 | fepriv->status = 0; | |
1812 | } | |
1813 | break; | |
1814 | ||
1815 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
1816 | if (fe->ops.diseqc_send_burst) { |
1817 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
1818 | fepriv->state = FESTATE_DISEQC; |
1819 | fepriv->status = 0; | |
1820 | } | |
1821 | break; | |
1822 | ||
1823 | case FE_SET_TONE: | |
dea74869 PB |
1824 | if (fe->ops.set_tone) { |
1825 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 1826 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
1827 | fepriv->state = FESTATE_DISEQC; |
1828 | fepriv->status = 0; | |
1829 | } | |
1830 | break; | |
1831 | ||
1832 | case FE_SET_VOLTAGE: | |
dea74869 PB |
1833 | if (fe->ops.set_voltage) { |
1834 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 1835 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
1836 | fepriv->state = FESTATE_DISEQC; |
1837 | fepriv->status = 0; | |
1838 | } | |
1839 | break; | |
1840 | ||
1841 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
1842 | if (fe->ops.dishnetwork_send_legacy_command) { |
1843 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
1844 | fepriv->state = FESTATE_DISEQC; |
1845 | fepriv->status = 0; | |
dea74869 | 1846 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
1847 | /* |
1848 | * NOTE: This is a fallback condition. Some frontends | |
1849 | * (stv0299 for instance) take longer than 8msec to | |
1850 | * respond to a set_voltage command. Those switches | |
1851 | * need custom routines to switch properly. For all | |
2030c032 | 1852 | * other frontends, the following should work ok. |
83b75b04 N |
1853 | * Dish network legacy switches (as used by Dish500) |
1854 | * are controlled by sending 9-bit command words | |
1855 | * spaced 8msec apart. | |
25985edc | 1856 | * the actual command word is switch/port dependent |
83b75b04 N |
1857 | * so it is up to the userspace application to send |
1858 | * the right command. | |
1859 | * The command must always start with a '0' after | |
1860 | * initialization, so parg is 8 bits and does not | |
1861 | * include the initialization or start bit | |
1862 | */ | |
c6eb8eaf | 1863 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
1864 | struct timeval nexttime; |
1865 | struct timeval tv[10]; | |
1866 | int i; | |
1867 | u8 last = 1; | |
1868 | if (dvb_frontend_debug) | |
c6eb8eaf | 1869 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
1870 | do_gettimeofday(&nexttime); |
1871 | if (dvb_frontend_debug) | |
1872 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); | |
1873 | /* before sending a command, initialize by sending | |
1874 | * a 32ms 18V to the switch | |
1875 | */ | |
dea74869 | 1876 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
1877 | dvb_frontend_sleep_until(&nexttime, 32000); |
1878 | ||
1879 | for (i = 0; i < 9; i++) { | |
1880 | if (dvb_frontend_debug) | |
1881 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 1882 | if ((swcmd & 0x01) != last) { |
83b75b04 | 1883 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 1884 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
1885 | last = (last) ? 0 : 1; |
1886 | } | |
c6eb8eaf | 1887 | swcmd = swcmd >> 1; |
83b75b04 N |
1888 | if (i != 8) |
1889 | dvb_frontend_sleep_until(&nexttime, 8000); | |
1890 | } | |
1891 | if (dvb_frontend_debug) { | |
1892 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 1893 | __func__, fe->dvb->num); |
83b75b04 N |
1894 | for (i = 1; i < 10; i++) |
1895 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
1896 | } | |
1897 | err = 0; | |
1898 | fepriv->state = FESTATE_DISEQC; | |
1899 | fepriv->status = 0; | |
1da177e4 LT |
1900 | } |
1901 | break; | |
1902 | ||
1903 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
1904 | if (fe->ops.diseqc_recv_slave_reply) |
1905 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
1906 | break; |
1907 | ||
1908 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
1909 | if (fe->ops.enable_high_lnb_voltage) |
1910 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
1911 | break; |
1912 | ||
1913 | case FE_SET_FRONTEND: { | |
50727719 | 1914 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1da177e4 LT |
1915 | struct dvb_frontend_tune_settings fetunesettings; |
1916 | ||
50727719 | 1917 | if (c->state == DTV_TUNE) { |
61cb27af | 1918 | if (dvb_frontend_check_parameters(fe, &fepriv->parameters_in) < 0) { |
6b73eeaf ST |
1919 | err = -EINVAL; |
1920 | break; | |
1921 | } | |
1922 | } else { | |
1923 | if (dvb_frontend_check_parameters(fe, parg) < 0) { | |
1924 | err = -EINVAL; | |
1925 | break; | |
1926 | } | |
1fab46f0 | 1927 | |
61cb27af | 1928 | memcpy (&fepriv->parameters_in, parg, |
6b73eeaf | 1929 | sizeof (struct dvb_frontend_parameters)); |
674ce343 | 1930 | dtv_property_cache_init(fe, c); |
bbe880b4 | 1931 | dtv_property_cache_sync(fe, c, &fepriv->parameters_in); |
6b73eeaf | 1932 | } |
1da177e4 | 1933 | |
56ce5ac4 AO |
1934 | /* |
1935 | * Initialize output parameters to match the values given by | |
1936 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
1937 | * with status = 0, which copies output parameters to userspace. | |
1938 | */ | |
1939 | fepriv->parameters_out = fepriv->parameters_in; | |
1940 | ||
1da177e4 LT |
1941 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
1942 | memcpy(&fetunesettings.parameters, parg, | |
1943 | sizeof (struct dvb_frontend_parameters)); | |
1944 | ||
1945 | /* force auto frequency inversion if requested */ | |
1946 | if (dvb_force_auto_inversion) { | |
61cb27af | 1947 | fepriv->parameters_in.inversion = INVERSION_AUTO; |
1da177e4 LT |
1948 | fetunesettings.parameters.inversion = INVERSION_AUTO; |
1949 | } | |
dea74869 | 1950 | if (fe->ops.info.type == FE_OFDM) { |
1b3c3714 | 1951 | /* without hierarchical coding code_rate_LP is irrelevant, |
1da177e4 | 1952 | * so we tolerate the otherwise invalid FEC_NONE setting */ |
61cb27af AO |
1953 | if (fepriv->parameters_in.u.ofdm.hierarchy_information == HIERARCHY_NONE && |
1954 | fepriv->parameters_in.u.ofdm.code_rate_LP == FEC_NONE) | |
1955 | fepriv->parameters_in.u.ofdm.code_rate_LP = FEC_AUTO; | |
1da177e4 LT |
1956 | } |
1957 | ||
1958 | /* get frontend-specific tuning settings */ | |
dea74869 | 1959 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
1da177e4 LT |
1960 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; |
1961 | fepriv->max_drift = fetunesettings.max_drift; | |
1962 | fepriv->step_size = fetunesettings.step_size; | |
1963 | } else { | |
1964 | /* default values */ | |
dea74869 | 1965 | switch(fe->ops.info.type) { |
1da177e4 LT |
1966 | case FE_QPSK: |
1967 | fepriv->min_delay = HZ/20; | |
61cb27af AO |
1968 | fepriv->step_size = fepriv->parameters_in.u.qpsk.symbol_rate / 16000; |
1969 | fepriv->max_drift = fepriv->parameters_in.u.qpsk.symbol_rate / 2000; | |
1da177e4 LT |
1970 | break; |
1971 | ||
1972 | case FE_QAM: | |
1973 | fepriv->min_delay = HZ/20; | |
1974 | fepriv->step_size = 0; /* no zigzag */ | |
1975 | fepriv->max_drift = 0; | |
1976 | break; | |
1977 | ||
1978 | case FE_OFDM: | |
1979 | fepriv->min_delay = HZ/20; | |
dea74869 PB |
1980 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
1981 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
1da177e4 LT |
1982 | break; |
1983 | case FE_ATSC: | |
4821fb1d MA |
1984 | fepriv->min_delay = HZ/20; |
1985 | fepriv->step_size = 0; | |
1986 | fepriv->max_drift = 0; | |
1da177e4 LT |
1987 | break; |
1988 | } | |
1989 | } | |
1990 | if (dvb_override_tune_delay > 0) | |
1991 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
1992 | ||
1993 | fepriv->state = FESTATE_RETUNE; | |
1d06059c IL |
1994 | |
1995 | /* Request the search algorithm to search */ | |
1996 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
1997 | ||
20640bea | 1998 | dvb_frontend_clear_events(fe); |
1da177e4 | 1999 | dvb_frontend_add_event(fe, 0); |
5c9f480b | 2000 | dvb_frontend_wakeup(fe); |
1da177e4 LT |
2001 | fepriv->status = 0; |
2002 | err = 0; | |
2003 | break; | |
2004 | } | |
2005 | ||
2006 | case FE_GET_EVENT: | |
2007 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2008 | break; | |
2009 | ||
2010 | case FE_GET_FRONTEND: | |
dea74869 | 2011 | if (fe->ops.get_frontend) { |
a5959dbe AO |
2012 | err = fe->ops.get_frontend(fe, &fepriv->parameters_out); |
2013 | memcpy(parg, &fepriv->parameters_out, sizeof(struct dvb_frontend_parameters)); | |
1da177e4 LT |
2014 | } |
2015 | break; | |
36cb557a AQ |
2016 | |
2017 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 2018 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2019 | err = 0; |
36cb557a | 2020 | break; |
1da177e4 LT |
2021 | }; |
2022 | ||
9133aee0 MK |
2023 | if (fe->dvb->fe_ioctl_override) { |
2024 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
2025 | DVB_FE_IOCTL_POST); | |
2026 | if (cb_err < 0) | |
2027 | return cb_err; | |
2028 | } | |
2029 | ||
1da177e4 LT |
2030 | return err; |
2031 | } | |
2032 | ||
6b73eeaf | 2033 | |
1da177e4 LT |
2034 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2035 | { | |
2036 | struct dvb_device *dvbdev = file->private_data; | |
2037 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2038 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2039 | |
46b4f7c1 | 2040 | dprintk ("%s\n", __func__); |
1da177e4 LT |
2041 | |
2042 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2043 | ||
2044 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2045 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2046 | ||
2047 | return 0; | |
2048 | } | |
2049 | ||
2050 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2051 | { | |
2052 | struct dvb_device *dvbdev = file->private_data; | |
2053 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2054 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2055 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2056 | int ret; |
2057 | ||
46b4f7c1 | 2058 | dprintk ("%s\n", __func__); |
e36309f5 MC |
2059 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
2060 | return -ENODEV; | |
1da177e4 | 2061 | |
59b1842d DB |
2062 | if (adapter->mfe_shared) { |
2063 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2064 | |
2065 | if (adapter->mfe_dvbdev == NULL) | |
2066 | adapter->mfe_dvbdev = dvbdev; | |
2067 | ||
2068 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2069 | struct dvb_device | |
2070 | *mfedev = adapter->mfe_dvbdev; | |
2071 | struct dvb_frontend | |
2072 | *mfe = mfedev->priv; | |
2073 | struct dvb_frontend_private | |
2074 | *mfepriv = mfe->frontend_priv; | |
2075 | int mferetry = (dvb_mfe_wait_time << 1); | |
2076 | ||
2077 | mutex_unlock (&adapter->mfe_lock); | |
2078 | while (mferetry-- && (mfedev->users != -1 || | |
2079 | mfepriv->thread != NULL)) { | |
2080 | if(msleep_interruptible(500)) { | |
2081 | if(signal_pending(current)) | |
2082 | return -EINTR; | |
59b1842d | 2083 | } |
6594690b DB |
2084 | } |
2085 | ||
2086 | mutex_lock (&adapter->mfe_lock); | |
2087 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2088 | mfedev = adapter->mfe_dvbdev; |
2089 | mfe = mfedev->priv; | |
2090 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2091 | if (mfedev->users != -1 || |
2092 | mfepriv->thread != NULL) { | |
2093 | mutex_unlock (&adapter->mfe_lock); | |
2094 | return -EBUSY; | |
59b1842d | 2095 | } |
6594690b | 2096 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2097 | } |
59b1842d DB |
2098 | } |
2099 | } | |
2100 | ||
48136e1e OE |
2101 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2102 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2103 | goto err0; |
2d196931 DH |
2104 | |
2105 | /* If we took control of the bus, we need to force | |
2106 | reinitialization. This is because many ts_bus_ctrl() | |
2107 | functions strobe the RESET pin on the demod, and if the | |
2108 | frontend thread already exists then the dvb_init() routine | |
2109 | won't get called (which is what usually does initial | |
2110 | register configuration). */ | |
2111 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2112 | } |
2113 | ||
48136e1e OE |
2114 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2115 | goto err1; | |
04c56d0e | 2116 | |
48136e1e | 2117 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2118 | /* normal tune mode when opened R/W */ |
2119 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2120 | fepriv->tone = -1; | |
2121 | fepriv->voltage = -1; | |
2122 | ||
1da177e4 LT |
2123 | ret = dvb_frontend_start (fe); |
2124 | if (ret) | |
48136e1e | 2125 | goto err2; |
1da177e4 LT |
2126 | |
2127 | /* empty event queue */ | |
2128 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2129 | } | |
2130 | ||
59b1842d DB |
2131 | if (adapter->mfe_shared) |
2132 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2133 | return ret; |
48136e1e OE |
2134 | |
2135 | err2: | |
2136 | dvb_generic_release(inode, file); | |
2137 | err1: | |
2138 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2139 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2140 | err0: |
2141 | if (adapter->mfe_shared) | |
2142 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2143 | return ret; |
1da177e4 LT |
2144 | } |
2145 | ||
2146 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2147 | { | |
2148 | struct dvb_device *dvbdev = file->private_data; | |
2149 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2150 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2151 | int ret; |
1da177e4 | 2152 | |
46b4f7c1 | 2153 | dprintk ("%s\n", __func__); |
1da177e4 | 2154 | |
b9d5efcc | 2155 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2156 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2157 | mb(); |
2158 | } | |
1da177e4 | 2159 | |
ca5be9cd MR |
2160 | ret = dvb_generic_release (inode, file); |
2161 | ||
48136e1e | 2162 | if (dvbdev->users == -1) { |
b9d5efcc | 2163 | wake_up(&fepriv->wait_queue); |
e36309f5 | 2164 | if (fepriv->exit != DVB_FE_NO_EXIT) { |
48136e1e OE |
2165 | fops_put(file->f_op); |
2166 | file->f_op = NULL; | |
2167 | wake_up(&dvbdev->wait_queue); | |
2168 | } | |
2169 | if (fe->ops.ts_bus_ctrl) | |
2170 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2171 | } |
48136e1e | 2172 | |
ca5be9cd | 2173 | return ret; |
1da177e4 LT |
2174 | } |
2175 | ||
784e29d2 | 2176 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2177 | .owner = THIS_MODULE, |
16ef8def | 2178 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2179 | .poll = dvb_frontend_poll, |
2180 | .open = dvb_frontend_open, | |
6038f373 AB |
2181 | .release = dvb_frontend_release, |
2182 | .llseek = noop_llseek, | |
1da177e4 LT |
2183 | }; |
2184 | ||
2185 | int dvb_register_frontend(struct dvb_adapter* dvb, | |
2186 | struct dvb_frontend* fe) | |
2187 | { | |
2188 | struct dvb_frontend_private *fepriv; | |
2189 | static const struct dvb_device dvbdev_template = { | |
2190 | .users = ~0, | |
2191 | .writers = 1, | |
2192 | .readers = (~0)-1, | |
2193 | .fops = &dvb_frontend_fops, | |
2194 | .kernel_ioctl = dvb_frontend_ioctl | |
2195 | }; | |
2196 | ||
46b4f7c1 | 2197 | dprintk ("%s\n", __func__); |
1da177e4 | 2198 | |
3593cab5 | 2199 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2200 | return -ERESTARTSYS; |
2201 | ||
7408187d | 2202 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2203 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2204 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2205 | return -ENOMEM; |
2206 | } | |
0c53c70f | 2207 | fepriv = fe->frontend_priv; |
1da177e4 | 2208 | |
a0a4714c | 2209 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2210 | init_waitqueue_head (&fepriv->wait_queue); |
2211 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2212 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2213 | fe->dvb = dvb; |
2214 | fepriv->inversion = INVERSION_OFF; | |
2215 | ||
363c35fc | 2216 | printk ("DVB: registering adapter %i frontend %i (%s)...\n", |
1da177e4 | 2217 | fe->dvb->num, |
363c35fc | 2218 | fe->id, |
dea74869 | 2219 | fe->ops.info.name); |
1da177e4 LT |
2220 | |
2221 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2222 | fe, DVB_DEVICE_FRONTEND); | |
2223 | ||
3593cab5 | 2224 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2225 | return 0; |
2226 | } | |
2227 | EXPORT_SYMBOL(dvb_register_frontend); | |
2228 | ||
2229 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2230 | { | |
0c53c70f | 2231 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
46b4f7c1 | 2232 | dprintk ("%s\n", __func__); |
1da177e4 | 2233 | |
57861b43 | 2234 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2235 | dvb_frontend_stop (fe); |
57861b43 MR |
2236 | mutex_unlock(&frontend_mutex); |
2237 | ||
2238 | if (fepriv->dvbdev->users < -1) | |
2239 | wait_event(fepriv->dvbdev->wait_queue, | |
2240 | fepriv->dvbdev->users==-1); | |
2241 | ||
3593cab5 | 2242 | mutex_lock(&frontend_mutex); |
1da177e4 | 2243 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2244 | |
1da177e4 LT |
2245 | /* fe is invalid now */ |
2246 | kfree(fepriv); | |
3593cab5 | 2247 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2248 | return 0; |
2249 | } | |
2250 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2251 | |
149ef72d | 2252 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2253 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2254 | { | |
2255 | void *ptr; | |
2256 | ||
2257 | if (fe->ops.release_sec) { | |
2258 | fe->ops.release_sec(fe); | |
2259 | symbol_put_addr(fe->ops.release_sec); | |
2260 | } | |
2261 | if (fe->ops.tuner_ops.release) { | |
2262 | fe->ops.tuner_ops.release(fe); | |
2263 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2264 | } | |
2426a27e MK |
2265 | if (fe->ops.analog_ops.release) { |
2266 | fe->ops.analog_ops.release(fe); | |
2267 | symbol_put_addr(fe->ops.analog_ops.release); | |
2268 | } | |
f52a838b AQ |
2269 | ptr = (void*)fe->ops.release; |
2270 | if (ptr) { | |
2271 | fe->ops.release(fe); | |
2272 | symbol_put_addr(ptr); | |
2273 | } | |
2274 | } | |
2275 | #else | |
2276 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2277 | { | |
2278 | if (fe->ops.release_sec) | |
2279 | fe->ops.release_sec(fe); | |
2280 | if (fe->ops.tuner_ops.release) | |
2281 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2282 | if (fe->ops.analog_ops.release) |
2283 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2284 | if (fe->ops.release) |
2285 | fe->ops.release(fe); | |
2286 | } | |
2287 | #endif | |
2288 | EXPORT_SYMBOL(dvb_frontend_detach); |