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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 | ||
8de8594a MCC |
28 | /* Enables DVBv3 compatibility bits at the headers */ |
29 | #define __DVB_CORE__ | |
30 | ||
b3ad24d2 MCC |
31 | #define pr_fmt(fmt) "dvb_frontend: " fmt |
32 | ||
1da177e4 LT |
33 | #include <linux/string.h> |
34 | #include <linux/kernel.h> | |
35 | #include <linux/sched.h> | |
36 | #include <linux/wait.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/poll.h> | |
4c4cb1b1 | 39 | #include <linux/semaphore.h> |
1da177e4 | 40 | #include <linux/module.h> |
1da177e4 | 41 | #include <linux/list.h> |
7dfb7103 | 42 | #include <linux/freezer.h> |
cc89c229 | 43 | #include <linux/jiffies.h> |
8eec1429 | 44 | #include <linux/kthread.h> |
9056a23b | 45 | #include <linux/ktime.h> |
1da177e4 | 46 | #include <asm/processor.h> |
1da177e4 LT |
47 | |
48 | #include "dvb_frontend.h" | |
49 | #include "dvbdev.h" | |
eacf8d8d | 50 | #include <linux/dvb/version.h> |
1da177e4 LT |
51 | |
52 | static int dvb_frontend_debug; | |
849be2cd | 53 | static int dvb_shutdown_timeout; |
1da177e4 LT |
54 | static int dvb_force_auto_inversion; |
55 | static int dvb_override_tune_delay; | |
56 | static int dvb_powerdown_on_sleep = 1; | |
59b1842d | 57 | static int dvb_mfe_wait_time = 5; |
1da177e4 LT |
58 | |
59 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); | |
f4f009a7 | 60 | MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off)."); |
6baad3f0 | 61 | module_param(dvb_shutdown_timeout, int, 0644); |
1da177e4 | 62 | MODULE_PARM_DESC(dvb_shutdown_timeout, "wait <shutdown_timeout> seconds after close() before suspending hardware"); |
6baad3f0 | 63 | module_param(dvb_force_auto_inversion, int, 0644); |
1da177e4 | 64 | MODULE_PARM_DESC(dvb_force_auto_inversion, "0: normal (default), 1: INVERSION_AUTO forced always"); |
6baad3f0 | 65 | module_param(dvb_override_tune_delay, int, 0644); |
1da177e4 | 66 | MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt"); |
6baad3f0 | 67 | module_param(dvb_powerdown_on_sleep, int, 0644); |
a8558577 | 68 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
59b1842d DB |
69 | module_param(dvb_mfe_wait_time, int, 0644); |
70 | 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 | 71 | |
b3ad24d2 MCC |
72 | #define dprintk(fmt, arg...) \ |
73 | printk(KERN_DEBUG pr_fmt("%s: " fmt), __func__, ##arg) | |
74 | ||
1da177e4 LT |
75 | #define FESTATE_IDLE 1 |
76 | #define FESTATE_RETUNE 2 | |
77 | #define FESTATE_TUNING_FAST 4 | |
78 | #define FESTATE_TUNING_SLOW 8 | |
79 | #define FESTATE_TUNED 16 | |
80 | #define FESTATE_ZIGZAG_FAST 32 | |
81 | #define FESTATE_ZIGZAG_SLOW 64 | |
82 | #define FESTATE_DISEQC 128 | |
01886255 | 83 | #define FESTATE_ERROR 256 |
1da177e4 LT |
84 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
85 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) | |
86 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) | |
87 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) | |
0249ef16 | 88 | |
1da177e4 LT |
89 | /* |
90 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. | |
91 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. | |
92 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. | |
93 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. | |
94 | * FESTATE_TUNED. The frontend has successfully locked on. | |
95 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. | |
96 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. | |
97 | * FESTATE_DISEQC. A DISEQC command has just been issued. | |
98 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. | |
99 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. | |
100 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. | |
101 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. | |
102 | */ | |
103 | ||
3593cab5 | 104 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
105 | |
106 | struct dvb_frontend_private { | |
fe35637b | 107 | struct kref refcount; |
1da177e4 | 108 | |
36cb557a | 109 | /* thread/frontend values */ |
1da177e4 | 110 | struct dvb_device *dvbdev; |
a5959dbe | 111 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
112 | struct dvb_fe_events events; |
113 | struct semaphore sem; | |
114 | struct list_head list_head; | |
115 | wait_queue_head_t wait_queue; | |
8eec1429 | 116 | struct task_struct *thread; |
1da177e4 | 117 | unsigned long release_jiffies; |
36cb557a | 118 | unsigned int wakeup; |
0df289a2 | 119 | enum fe_status status; |
400b7083 | 120 | unsigned long tune_mode_flags; |
36cb557a | 121 | unsigned int delay; |
86f40cc3 | 122 | unsigned int reinitialise; |
64454016 AQ |
123 | int tone; |
124 | int voltage; | |
36cb557a AQ |
125 | |
126 | /* swzigzag values */ | |
127 | unsigned int state; | |
128 | unsigned int bending; | |
129 | int lnb_drift; | |
130 | unsigned int inversion; | |
131 | unsigned int auto_step; | |
132 | unsigned int auto_sub_step; | |
133 | unsigned int started_auto_step; | |
134 | unsigned int min_delay; | |
135 | unsigned int max_drift; | |
136 | unsigned int step_size; | |
137 | int quality; | |
138 | unsigned int check_wrapped; | |
c59e7870 | 139 | enum dvbfe_search algo_status; |
135f9be9 MCC |
140 | |
141 | #if defined(CONFIG_MEDIA_CONTROLLER_DVB) | |
142 | struct media_pipeline pipe; | |
135f9be9 | 143 | #endif |
1da177e4 LT |
144 | }; |
145 | ||
fe35637b MK |
146 | static void dvb_frontend_private_free(struct kref *ref) |
147 | { | |
148 | struct dvb_frontend_private *fepriv = | |
149 | container_of(ref, struct dvb_frontend_private, refcount); | |
150 | kfree(fepriv); | |
151 | } | |
152 | ||
153 | static void dvb_frontend_private_put(struct dvb_frontend_private *fepriv) | |
154 | { | |
155 | kref_put(&fepriv->refcount, dvb_frontend_private_free); | |
156 | } | |
157 | ||
158 | static void dvb_frontend_private_get(struct dvb_frontend_private *fepriv) | |
159 | { | |
160 | kref_get(&fepriv->refcount); | |
161 | } | |
162 | ||
86f40cc3 | 163 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 164 | static int dtv_get_frontend(struct dvb_frontend *fe, |
2ea9a08d | 165 | struct dtv_frontend_properties *c, |
a689e365 | 166 | struct dvb_frontend_parameters *p_out); |
2ea9a08d MCC |
167 | static int |
168 | dtv_property_legacy_params_sync(struct dvb_frontend *fe, | |
169 | const struct dtv_frontend_properties *c, | |
170 | struct dvb_frontend_parameters *p); | |
a689e365 MCC |
171 | |
172 | static bool has_get_frontend(struct dvb_frontend *fe) | |
173 | { | |
c065f5b4 | 174 | return fe->ops.get_frontend != NULL; |
a689e365 | 175 | } |
1da177e4 | 176 | |
194ced7a | 177 | void |
22a613e8 MK |
178 | dvb_tuner_simple_release(struct dvb_frontend *fe) |
179 | { | |
180 | kfree(fe->tuner_priv); | |
181 | fe->tuner_priv = NULL; | |
22a613e8 MK |
182 | } |
183 | EXPORT_SYMBOL(dvb_tuner_simple_release); | |
184 | ||
5bfaadde MCC |
185 | /* |
186 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
187 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
188 | * otherwise, a DVBv3 call will fail. | |
189 | */ | |
190 | enum dvbv3_emulation_type { | |
191 | DVBV3_UNKNOWN, | |
192 | DVBV3_QPSK, | |
193 | DVBV3_QAM, | |
194 | DVBV3_OFDM, | |
195 | DVBV3_ATSC, | |
196 | }; | |
197 | ||
198 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
199 | { | |
200 | switch (delivery_system) { | |
201 | case SYS_DVBC_ANNEX_A: | |
202 | case SYS_DVBC_ANNEX_C: | |
203 | return DVBV3_QAM; | |
204 | case SYS_DVBS: | |
205 | case SYS_DVBS2: | |
206 | case SYS_TURBO: | |
207 | case SYS_ISDBS: | |
208 | case SYS_DSS: | |
209 | return DVBV3_QPSK; | |
210 | case SYS_DVBT: | |
211 | case SYS_DVBT2: | |
212 | case SYS_ISDBT: | |
224b6642 | 213 | case SYS_DTMB: |
5bfaadde MCC |
214 | return DVBV3_OFDM; |
215 | case SYS_ATSC: | |
ca689488 | 216 | case SYS_ATSCMH: |
5bfaadde MCC |
217 | case SYS_DVBC_ANNEX_B: |
218 | return DVBV3_ATSC; | |
219 | case SYS_UNDEFINED: | |
220 | case SYS_ISDBC: | |
221 | case SYS_DVBH: | |
222 | case SYS_DAB: | |
5bfaadde MCC |
223 | default: |
224 | /* | |
225 | * Doesn't know how to emulate those types and/or | |
226 | * there's no frontend driver from this type yet | |
227 | * with some emulation code, so, we're not sure yet how | |
228 | * to handle them, or they're not compatible with a DVBv3 call. | |
229 | */ | |
230 | return DVBV3_UNKNOWN; | |
231 | } | |
232 | } | |
233 | ||
0df289a2 MCC |
234 | static void dvb_frontend_add_event(struct dvb_frontend *fe, |
235 | enum fe_status status) | |
1da177e4 | 236 | { |
0c53c70f | 237 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
2ea9a08d | 238 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
1da177e4 LT |
239 | struct dvb_fe_events *events = &fepriv->events; |
240 | struct dvb_frontend_event *e; | |
241 | int wp; | |
242 | ||
36bdbc3f | 243 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 244 | |
a689e365 | 245 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
2ea9a08d | 246 | dtv_get_frontend(fe, c, &fepriv->parameters_out); |
1da177e4 | 247 | |
77b1e2fb | 248 | mutex_lock(&events->mtx); |
1da177e4 | 249 | |
77b1e2fb | 250 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
251 | if (wp == events->eventr) { |
252 | events->overflow = 1; | |
253 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
254 | } | |
255 | ||
256 | e = &events->events[events->eventw]; | |
77b1e2fb | 257 | e->status = status; |
a5959dbe | 258 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
259 | |
260 | events->eventw = wp; | |
261 | ||
03b76123 | 262 | mutex_unlock(&events->mtx); |
1da177e4 | 263 | |
1da177e4 LT |
264 | wake_up_interruptible (&events->wait_queue); |
265 | } | |
266 | ||
267 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
268 | struct dvb_frontend_event *event, int flags) | |
269 | { | |
0c53c70f | 270 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
271 | struct dvb_fe_events *events = &fepriv->events; |
272 | ||
36bdbc3f | 273 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
274 | |
275 | if (events->overflow) { | |
276 | events->overflow = 0; | |
277 | return -EOVERFLOW; | |
278 | } | |
279 | ||
280 | if (events->eventw == events->eventr) { | |
281 | int ret; | |
282 | ||
283 | if (flags & O_NONBLOCK) | |
284 | return -EWOULDBLOCK; | |
285 | ||
286 | up(&fepriv->sem); | |
287 | ||
288 | ret = wait_event_interruptible (events->wait_queue, | |
289 | events->eventw != events->eventr); | |
290 | ||
291 | if (down_interruptible (&fepriv->sem)) | |
292 | return -ERESTARTSYS; | |
293 | ||
294 | if (ret < 0) | |
295 | return ret; | |
296 | } | |
297 | ||
77b1e2fb AO |
298 | mutex_lock(&events->mtx); |
299 | *event = events->events[events->eventr]; | |
1da177e4 | 300 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 301 | mutex_unlock(&events->mtx); |
1da177e4 LT |
302 | |
303 | return 0; | |
304 | } | |
305 | ||
20640bea AO |
306 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
307 | { | |
308 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
309 | struct dvb_fe_events *events = &fepriv->events; | |
310 | ||
311 | mutex_lock(&events->mtx); | |
312 | events->eventr = events->eventw; | |
313 | mutex_unlock(&events->mtx); | |
314 | } | |
315 | ||
1da177e4 LT |
316 | static void dvb_frontend_init(struct dvb_frontend *fe) |
317 | { | |
36bdbc3f AP |
318 | dev_dbg(fe->dvb->device, |
319 | "%s: initialising adapter %i frontend %i (%s)...\n", | |
320 | __func__, fe->dvb->num, fe->id, fe->ops.info.name); | |
dea74869 PB |
321 | |
322 | if (fe->ops.init) | |
323 | fe->ops.init(fe); | |
324 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
325 | if (fe->ops.i2c_gate_ctrl) |
326 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
327 | fe->ops.tuner_ops.init(fe); |
328 | if (fe->ops.i2c_gate_ctrl) | |
329 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 330 | } |
1da177e4 LT |
331 | } |
332 | ||
86f40cc3 AQ |
333 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
334 | { | |
335 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
336 | ||
337 | fepriv->reinitialise = 1; | |
338 | dvb_frontend_wakeup(fe); | |
339 | } | |
340 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
341 | ||
36cb557a | 342 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 343 | { |
36cb557a | 344 | int q2; |
36bdbc3f | 345 | struct dvb_frontend *fe = fepriv->dvbdev->priv; |
1da177e4 | 346 | |
36bdbc3f | 347 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 348 | |
36cb557a AQ |
349 | if (locked) |
350 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
351 | else | |
352 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 353 | |
36cb557a AQ |
354 | q2 = fepriv->quality - 128; |
355 | q2 *= q2; | |
1da177e4 | 356 | |
36cb557a | 357 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
358 | } |
359 | ||
360 | /** | |
361 | * Performs automatic twiddling of frontend parameters. | |
362 | * | |
363 | * @param fe The frontend concerned. | |
364 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
365 | * @returns Number of complete iterations that have been performed. | |
366 | */ | |
36cb557a | 367 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
368 | { |
369 | int autoinversion; | |
370 | int ready = 0; | |
01886255 | 371 | int fe_set_err = 0; |
0c53c70f | 372 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
373 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
374 | int original_inversion = c->inversion; | |
375 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
376 | |
377 | /* are we using autoinversion? */ | |
dea74869 | 378 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 379 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
380 | |
381 | /* setup parameters correctly */ | |
382 | while(!ready) { | |
383 | /* calculate the lnb_drift */ | |
384 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
385 | ||
386 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
387 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
388 | fepriv->auto_step = 0; | |
389 | fepriv->auto_sub_step = 0; | |
390 | fepriv->lnb_drift = 0; | |
391 | } | |
392 | ||
393 | /* perform inversion and +/- zigzag */ | |
394 | switch(fepriv->auto_sub_step) { | |
395 | case 0: | |
396 | /* try with the current inversion and current drift setting */ | |
397 | ready = 1; | |
398 | break; | |
399 | ||
400 | case 1: | |
401 | if (!autoinversion) break; | |
402 | ||
403 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
404 | ready = 1; | |
405 | break; | |
406 | ||
407 | case 2: | |
408 | if (fepriv->lnb_drift == 0) break; | |
409 | ||
410 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
411 | ready = 1; | |
412 | break; | |
413 | ||
414 | case 3: | |
415 | if (fepriv->lnb_drift == 0) break; | |
416 | if (!autoinversion) break; | |
417 | ||
418 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
419 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
420 | ready = 1; | |
421 | break; | |
422 | ||
423 | default: | |
424 | fepriv->auto_step++; | |
425 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
426 | break; | |
427 | } | |
428 | ||
429 | if (!ready) fepriv->auto_sub_step++; | |
430 | } | |
431 | ||
432 | /* if this attempt would hit where we started, indicate a complete | |
433 | * iteration has occurred */ | |
434 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
435 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
436 | return 1; | |
437 | } | |
438 | ||
36bdbc3f AP |
439 | dev_dbg(fe->dvb->device, "%s: drift:%i inversion:%i auto_step:%i " \ |
440 | "auto_sub_step:%i started_auto_step:%i\n", | |
441 | __func__, fepriv->lnb_drift, fepriv->inversion, | |
442 | fepriv->auto_step, fepriv->auto_sub_step, | |
443 | fepriv->started_auto_step); | |
1da177e4 LT |
444 | |
445 | /* set the frontend itself */ | |
ac3852c4 | 446 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 447 | if (autoinversion) |
ac3852c4 MCC |
448 | c->inversion = fepriv->inversion; |
449 | tmp = *c; | |
dea74869 | 450 | if (fe->ops.set_frontend) |
bc9cd273 | 451 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 452 | *c = tmp; |
01886255 JG |
453 | if (fe_set_err < 0) { |
454 | fepriv->state = FESTATE_ERROR; | |
455 | return fe_set_err; | |
456 | } | |
1da177e4 | 457 | |
ac3852c4 MCC |
458 | c->frequency = original_frequency; |
459 | c->inversion = original_inversion; | |
1da177e4 LT |
460 | |
461 | fepriv->auto_sub_step++; | |
462 | return 0; | |
463 | } | |
464 | ||
36cb557a AQ |
465 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
466 | { | |
0df289a2 | 467 | enum fe_status s = 0; |
01886255 | 468 | int retval = 0; |
36cb557a | 469 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 470 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
471 | |
472 | /* if we've got no parameters, just keep idling */ | |
473 | if (fepriv->state & FESTATE_IDLE) { | |
474 | fepriv->delay = 3*HZ; | |
475 | fepriv->quality = 0; | |
476 | return; | |
477 | } | |
478 | ||
479 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
480 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
481 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 482 | tmp = *c; |
dea74869 | 483 | if (fe->ops.set_frontend) |
bc9cd273 | 484 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 485 | *c = tmp; |
01886255 JG |
486 | if (retval < 0) |
487 | fepriv->state = FESTATE_ERROR; | |
488 | else | |
489 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
490 | } |
491 | fepriv->delay = 3*HZ; | |
492 | fepriv->quality = 0; | |
493 | return; | |
494 | } | |
495 | ||
496 | /* get the frontend status */ | |
497 | if (fepriv->state & FESTATE_RETUNE) { | |
498 | s = 0; | |
499 | } else { | |
dea74869 PB |
500 | if (fe->ops.read_status) |
501 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
502 | if (s != fepriv->status) { |
503 | dvb_frontend_add_event(fe, s); | |
504 | fepriv->status = s; | |
505 | } | |
506 | } | |
507 | ||
508 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
509 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
510 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
511 | fepriv->state = FESTATE_TUNED; | |
512 | ||
513 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 514 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
515 | (c->inversion == INVERSION_AUTO)) { |
516 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
517 | } |
518 | return; | |
519 | } | |
520 | ||
521 | /* if we are tuned already, check we're still locked */ | |
522 | if (fepriv->state & FESTATE_TUNED) { | |
523 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
524 | ||
525 | /* we're tuned, and the lock is still good... */ | |
526 | if (s & FE_HAS_LOCK) { | |
527 | return; | |
528 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
529 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
530 | fepriv->started_auto_step = fepriv->auto_step; | |
531 | fepriv->check_wrapped = 0; | |
532 | } | |
533 | } | |
534 | ||
535 | /* don't actually do anything if we're in the LOSTLOCK state, | |
536 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
537 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 538 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
539 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
540 | return; | |
541 | } | |
542 | ||
543 | /* don't do anything if we're in the DISEQC state, since this | |
544 | * might be someone with a motorized dish controlled by DISEQC. | |
545 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
546 | if (fepriv->state & FESTATE_DISEQC) { | |
547 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
548 | return; | |
549 | } | |
550 | ||
551 | /* if we're in the RETUNE state, set everything up for a brand | |
552 | * new scan, keeping the current inversion setting, as the next | |
553 | * tune is _very_ likely to require the same */ | |
554 | if (fepriv->state & FESTATE_RETUNE) { | |
555 | fepriv->lnb_drift = 0; | |
556 | fepriv->auto_step = 0; | |
557 | fepriv->auto_sub_step = 0; | |
558 | fepriv->started_auto_step = 0; | |
559 | fepriv->check_wrapped = 0; | |
560 | } | |
561 | ||
562 | /* fast zigzag. */ | |
563 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
564 | fepriv->delay = fepriv->min_delay; | |
565 | ||
2030c032 | 566 | /* perform a tune */ |
01886255 JG |
567 | retval = dvb_frontend_swzigzag_autotune(fe, |
568 | fepriv->check_wrapped); | |
569 | if (retval < 0) { | |
570 | return; | |
571 | } else if (retval) { | |
36cb557a AQ |
572 | /* OK, if we've run out of trials at the fast speed. |
573 | * Drop back to slow for the _next_ attempt */ | |
574 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
575 | fepriv->started_auto_step = fepriv->auto_step; | |
576 | return; | |
577 | } | |
578 | fepriv->check_wrapped = 1; | |
579 | ||
580 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
581 | * This ensures we cannot return from an | |
582 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
583 | * occurs */ | |
584 | if (fepriv->state & FESTATE_RETUNE) { | |
585 | fepriv->state = FESTATE_TUNING_FAST; | |
586 | } | |
587 | } | |
588 | ||
589 | /* slow zigzag */ | |
590 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
591 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
592 | ||
593 | /* Note: don't bother checking for wrapping; we stay in this | |
594 | * state until we get a lock */ | |
595 | dvb_frontend_swzigzag_autotune(fe, 0); | |
596 | } | |
597 | } | |
598 | ||
1da177e4 LT |
599 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
600 | { | |
0c53c70f | 601 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 602 | |
18ed2860 | 603 | if (fe->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
604 | return 1; |
605 | ||
606 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 607 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 608 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
609 | return 1; |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
614 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
615 | { | |
0c53c70f | 616 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
617 | |
618 | if (fepriv->wakeup) { | |
619 | fepriv->wakeup = 0; | |
620 | return 1; | |
621 | } | |
622 | return dvb_frontend_is_exiting(fe); | |
623 | } | |
624 | ||
625 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
626 | { | |
0c53c70f | 627 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
628 | |
629 | fepriv->wakeup = 1; | |
630 | wake_up_interruptible(&fepriv->wait_queue); | |
631 | } | |
632 | ||
1da177e4 LT |
633 | static int dvb_frontend_thread(void *data) |
634 | { | |
0c53c70f | 635 | struct dvb_frontend *fe = data; |
2ea9a08d | 636 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 637 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
0df289a2 | 638 | enum fe_status s; |
c59e7870 | 639 | enum dvbfe_algo algo; |
7e072221 | 640 | bool re_tune = false; |
6ae23224 | 641 | bool semheld = false; |
1da177e4 | 642 | |
36bdbc3f | 643 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 644 | |
36cb557a AQ |
645 | fepriv->check_wrapped = 0; |
646 | fepriv->quality = 0; | |
647 | fepriv->delay = 3*HZ; | |
1da177e4 | 648 | fepriv->status = 0; |
1da177e4 | 649 | fepriv->wakeup = 0; |
04c56d0e AQ |
650 | fepriv->reinitialise = 0; |
651 | ||
652 | dvb_frontend_init(fe); | |
1da177e4 | 653 | |
83144186 | 654 | set_freezable(); |
1da177e4 LT |
655 | while (1) { |
656 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 657 | restart: |
94238e9b | 658 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
659 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
660 | || freezing(current), | |
8eec1429 HP |
661 | fepriv->delay); |
662 | ||
663 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 664 | /* got signal or quitting */ |
6ae23224 JL |
665 | if (!down_interruptible(&fepriv->sem)) |
666 | semheld = true; | |
18ed2860 | 667 | fe->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
668 | break; |
669 | } | |
670 | ||
8eec1429 | 671 | if (try_to_freeze()) |
6591691b | 672 | goto restart; |
1da177e4 LT |
673 | |
674 | if (down_interruptible(&fepriv->sem)) | |
675 | break; | |
676 | ||
86f40cc3 AQ |
677 | if (fepriv->reinitialise) { |
678 | dvb_frontend_init(fe); | |
42f4e774 | 679 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 680 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 681 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 682 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
683 | fepriv->reinitialise = 0; |
684 | } | |
685 | ||
36cb557a | 686 | /* do an iteration of the tuning loop */ |
d772bd03 | 687 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
688 | algo = fe->ops.get_frontend_algo(fe); |
689 | switch (algo) { | |
690 | case DVBFE_ALGO_HW: | |
36bdbc3f | 691 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); |
c59e7870 | 692 | |
d772bd03 | 693 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 694 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 695 | re_tune = true; |
d772bd03 | 696 | fepriv->state = FESTATE_TUNED; |
45145b67 SA |
697 | } else { |
698 | re_tune = false; | |
d772bd03 MA |
699 | } |
700 | ||
c59e7870 | 701 | if (fe->ops.tune) |
7e072221 | 702 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 703 | |
2fac9a0f | 704 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
36bdbc3f | 705 | dev_dbg(fe->dvb->device, "%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
706 | dvb_frontend_add_event(fe, s); |
707 | fepriv->status = s; | |
708 | } | |
c59e7870 MA |
709 | break; |
710 | case DVBFE_ALGO_SW: | |
36bdbc3f | 711 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); |
70d90635 | 712 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
713 | break; |
714 | case DVBFE_ALGO_CUSTOM: | |
36bdbc3f | 715 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
c59e7870 | 716 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 717 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTAT_RETUNE\n", __func__); |
c59e7870 MA |
718 | fepriv->state = FESTATE_TUNED; |
719 | } | |
720 | /* Case where we are going to search for a carrier | |
721 | * User asked us to retune again for some reason, possibly | |
722 | * requesting a search with a new set of parameters | |
723 | */ | |
724 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 725 | if (fe->ops.search) { |
41da5320 | 726 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
727 | /* We did do a search as was requested, the flags are |
728 | * now unset as well and has the flags wrt to search. | |
729 | */ | |
7bcbdf38 AJ |
730 | } else { |
731 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
732 | } | |
c59e7870 MA |
733 | } |
734 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 735 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
736 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
737 | fepriv->delay = HZ / 2; | |
738 | } | |
2ea9a08d | 739 | dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out); |
7bcbdf38 AJ |
740 | fe->ops.read_status(fe, &s); |
741 | if (s != fepriv->status) { | |
742 | dvb_frontend_add_event(fe, s); /* update event list */ | |
743 | fepriv->status = s; | |
744 | if (!(s & FE_HAS_LOCK)) { | |
745 | fepriv->delay = HZ / 10; | |
746 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
747 | } else { | |
748 | fepriv->delay = 60 * HZ; | |
749 | } | |
c59e7870 MA |
750 | } |
751 | break; | |
752 | default: | |
36bdbc3f | 753 | dev_dbg(fe->dvb->device, "%s: UNDEFINED ALGO !\n", __func__); |
c59e7870 MA |
754 | break; |
755 | } | |
756 | } else { | |
4a4edcca | 757 | dvb_frontend_swzigzag(fe); |
c59e7870 | 758 | } |
1da177e4 LT |
759 | } |
760 | ||
608f62d6 OE |
761 | if (dvb_powerdown_on_sleep) { |
762 | if (fe->ops.set_voltage) | |
763 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 764 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
765 | if (fe->ops.i2c_gate_ctrl) |
766 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
767 | fe->ops.tuner_ops.sleep(fe); |
768 | if (fe->ops.i2c_gate_ctrl) | |
769 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 770 | } |
dea74869 PB |
771 | if (fe->ops.sleep) |
772 | fe->ops.sleep(fe); | |
1da177e4 LT |
773 | } |
774 | ||
8eec1429 | 775 | fepriv->thread = NULL; |
e36309f5 | 776 | if (kthread_should_stop()) |
18ed2860 | 777 | fe->exit = DVB_FE_DEVICE_REMOVED; |
e36309f5 | 778 | else |
18ed2860 | 779 | fe->exit = DVB_FE_NO_EXIT; |
1da177e4 LT |
780 | mb(); |
781 | ||
6ae23224 JL |
782 | if (semheld) |
783 | up(&fepriv->sem); | |
1da177e4 LT |
784 | dvb_frontend_wakeup(fe); |
785 | return 0; | |
786 | } | |
787 | ||
788 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
789 | { | |
0c53c70f | 790 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 791 | |
36bdbc3f | 792 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 793 | |
18ed2860 SK |
794 | if (fe->exit != DVB_FE_DEVICE_REMOVED) |
795 | fe->exit = DVB_FE_NORMAL_EXIT; | |
1da177e4 LT |
796 | mb(); |
797 | ||
8eec1429 | 798 | if (!fepriv->thread) |
1da177e4 LT |
799 | return; |
800 | ||
8eec1429 | 801 | kthread_stop(fepriv->thread); |
ca5be9cd | 802 | |
a0a4714c | 803 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
804 | fepriv->state = FESTATE_IDLE; |
805 | ||
806 | /* paranoia check in case a signal arrived */ | |
8eec1429 | 807 | if (fepriv->thread) |
36bdbc3f AP |
808 | dev_warn(fe->dvb->device, |
809 | "dvb_frontend_stop: warning: thread %p won't exit\n", | |
8eec1429 | 810 | fepriv->thread); |
1da177e4 LT |
811 | } |
812 | ||
83b75b04 | 813 | /* |
4deea4cb MCC |
814 | * Sleep for the amount of time given by add_usec parameter |
815 | * | |
816 | * This needs to be as precise as possible, as it affects the detection of | |
817 | * the dish tone command at the satellite subsystem. The precision is improved | |
818 | * by using a scheduled msleep followed by udelay for the remainder. | |
83b75b04 | 819 | */ |
9056a23b | 820 | void dvb_frontend_sleep_until(ktime_t *waketime, u32 add_usec) |
83b75b04 | 821 | { |
a733a41a | 822 | s32 delta; |
83b75b04 | 823 | |
a733a41a | 824 | *waketime = ktime_add_us(*waketime, add_usec); |
6b3f9998 | 825 | delta = ktime_us_delta(ktime_get_boottime(), *waketime); |
83b75b04 N |
826 | if (delta > 2500) { |
827 | msleep((delta - 1500) / 1000); | |
6b3f9998 | 828 | delta = ktime_us_delta(ktime_get_boottime(), *waketime); |
83b75b04 N |
829 | } |
830 | if (delta > 0) | |
831 | udelay(delta); | |
832 | } | |
833 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
834 | ||
1da177e4 LT |
835 | static int dvb_frontend_start(struct dvb_frontend *fe) |
836 | { | |
837 | int ret; | |
0c53c70f | 838 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 839 | struct task_struct *fe_thread; |
1da177e4 | 840 | |
36bdbc3f | 841 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 842 | |
8eec1429 | 843 | if (fepriv->thread) { |
18ed2860 | 844 | if (fe->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
845 | return 0; |
846 | else | |
847 | dvb_frontend_stop (fe); | |
848 | } | |
849 | ||
850 | if (signal_pending(current)) | |
851 | return -EINTR; | |
852 | if (down_interruptible (&fepriv->sem)) | |
853 | return -EINTR; | |
854 | ||
855 | fepriv->state = FESTATE_IDLE; | |
18ed2860 | 856 | fe->exit = DVB_FE_NO_EXIT; |
8eec1429 | 857 | fepriv->thread = NULL; |
1da177e4 LT |
858 | mb(); |
859 | ||
8eec1429 | 860 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 861 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
862 | if (IS_ERR(fe_thread)) { |
863 | ret = PTR_ERR(fe_thread); | |
36bdbc3f AP |
864 | dev_warn(fe->dvb->device, |
865 | "dvb_frontend_start: failed to start kthread (%d)\n", | |
866 | ret); | |
1da177e4 LT |
867 | up(&fepriv->sem); |
868 | return ret; | |
869 | } | |
8eec1429 | 870 | fepriv->thread = fe_thread; |
1da177e4 LT |
871 | return 0; |
872 | } | |
873 | ||
2030c032 | 874 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
875 | u32 *freq_min, u32 *freq_max) |
876 | { | |
877 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
878 | ||
879 | if (fe->ops.info.frequency_max == 0) | |
880 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
881 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
882 | *freq_max = fe->ops.info.frequency_max; | |
883 | else | |
884 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
885 | ||
886 | if (*freq_min == 0 || *freq_max == 0) | |
36bdbc3f AP |
887 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
888 | fe->dvb->num, fe->id); | |
c471b331 OE |
889 | } |
890 | ||
5bfaadde | 891 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 892 | { |
5bfaadde | 893 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
894 | u32 freq_min; |
895 | u32 freq_max; | |
896 | ||
1fab46f0 | 897 | /* range check: frequency */ |
2030c032 | 898 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
899 | if ((freq_min && c->frequency < freq_min) || |
900 | (freq_max && c->frequency > freq_max)) { | |
36bdbc3f AP |
901 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
902 | fe->dvb->num, fe->id, c->frequency, | |
903 | freq_min, freq_max); | |
1fab46f0 OE |
904 | return -EINVAL; |
905 | } | |
906 | ||
907 | /* range check: symbol rate */ | |
5bfaadde MCC |
908 | switch (c->delivery_system) { |
909 | case SYS_DVBS: | |
910 | case SYS_DVBS2: | |
911 | case SYS_TURBO: | |
912 | case SYS_DVBC_ANNEX_A: | |
913 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 914 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 915 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 916 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 917 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
36bdbc3f AP |
918 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
919 | fe->dvb->num, fe->id, c->symbol_rate, | |
920 | fe->ops.info.symbol_rate_min, | |
921 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
922 | return -EINVAL; |
923 | } | |
5bfaadde MCC |
924 | default: |
925 | break; | |
1fab46f0 OE |
926 | } |
927 | ||
928 | return 0; | |
929 | } | |
930 | ||
b6e760f3 PB |
931 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
932 | { | |
50727719 | 933 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 | 934 | int i; |
149709f5 | 935 | u32 delsys; |
b6e760f3 | 936 | |
149709f5 | 937 | delsys = c->delivery_system; |
808d24d6 | 938 | memset(c, 0, offsetof(struct dtv_frontend_properties, strength)); |
149709f5 | 939 | c->delivery_system = delsys; |
50727719 AO |
940 | |
941 | c->state = DTV_CLEAR; | |
26c924fe | 942 | |
36bdbc3f AP |
943 | dev_dbg(fe->dvb->device, "%s: Clearing cache for delivery system %d\n", |
944 | __func__, c->delivery_system); | |
26c924fe | 945 | |
50727719 | 946 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 947 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
948 | c->guard_interval = GUARD_INTERVAL_AUTO; |
949 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 950 | c->symbol_rate = 0; |
50727719 AO |
951 | c->code_rate_HP = FEC_AUTO; |
952 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 953 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 954 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 955 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
956 | c->sectone = SEC_TONE_OFF; |
957 | c->pilot = PILOT_AUTO; | |
50727719 | 958 | |
a520ca97 MCC |
959 | c->isdbt_partial_reception = 0; |
960 | c->isdbt_sb_mode = 0; | |
961 | c->isdbt_sb_subchannel = 0; | |
962 | c->isdbt_sb_segment_idx = 0; | |
963 | c->isdbt_sb_segment_count = 0; | |
964 | c->isdbt_layer_enabled = 0; | |
b6e760f3 | 965 | for (i = 0; i < 3; i++) { |
50727719 AO |
966 | c->layer[i].fec = FEC_AUTO; |
967 | c->layer[i].modulation = QAM_AUTO; | |
a520ca97 MCC |
968 | c->layer[i].interleaving = 0; |
969 | c->layer[i].segment_count = 0; | |
b6e760f3 PB |
970 | } |
971 | ||
287cefd0 | 972 | c->stream_id = NO_STREAM_ID_FILTER; |
26c924fe | 973 | |
5bfaadde MCC |
974 | switch (c->delivery_system) { |
975 | case SYS_DVBS: | |
976 | case SYS_DVBS2: | |
977 | case SYS_TURBO: | |
978 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
979 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
980 | break; | |
981 | case SYS_ATSC: | |
982 | c->modulation = VSB_8; | |
983 | break; | |
8e281faf AT |
984 | case SYS_ISDBS: |
985 | c->symbol_rate = 28860000; | |
986 | c->rolloff = ROLLOFF_35; | |
987 | c->bandwidth_hz = c->symbol_rate / 100 * 135; | |
988 | break; | |
5bfaadde MCC |
989 | default: |
990 | c->modulation = QAM_AUTO; | |
991 | break; | |
992 | } | |
993 | ||
33eebec5 AP |
994 | c->lna = LNA_AUTO; |
995 | ||
b6e760f3 PB |
996 | return 0; |
997 | } | |
998 | ||
999 | #define _DTV_CMD(n, s, b) \ | |
1000 | [n] = { \ | |
1001 | .name = #n, \ | |
1002 | .cmd = n, \ | |
1003 | .set = s,\ | |
1004 | .buffer = b \ | |
1005 | } | |
1006 | ||
ec05a642 | 1007 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
1008 | _DTV_CMD(DTV_TUNE, 1, 0), |
1009 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
1010 | |
1011 | /* Set */ | |
06d3a396 MCC |
1012 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
1013 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
1014 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
1015 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
1016 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
1017 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
1018 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
1019 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
1020 | _DTV_CMD(DTV_TONE, 1, 0), | |
1021 | _DTV_CMD(DTV_PILOT, 1, 0), | |
1022 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
1023 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
1024 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
1025 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
1026 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
1027 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
1028 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
224b6642 | 1029 | _DTV_CMD(DTV_INTERLEAVING, 1, 0), |
b6e760f3 PB |
1030 | |
1031 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
1032 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
1033 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1034 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1035 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1036 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1037 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1038 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1039 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1040 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1041 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1042 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1043 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1044 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1045 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1046 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1047 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1048 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1049 | ||
287cefd0 EP |
1050 | _DTV_CMD(DTV_STREAM_ID, 1, 0), |
1051 | _DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0), | |
8a2697ab | 1052 | _DTV_CMD(DTV_LNA, 1, 0), |
98293ef3 | 1053 | |
6b73eeaf | 1054 | /* Get */ |
06d3a396 MCC |
1055 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1056 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
ba2780c7 MA |
1057 | |
1058 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
ca689488 MK |
1059 | |
1060 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 1, 0), | |
1061 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 1, 0), | |
1062 | ||
1063 | _DTV_CMD(DTV_ATSCMH_FIC_VER, 0, 0), | |
ca689488 MK |
1064 | _DTV_CMD(DTV_ATSCMH_NOG, 0, 0), |
1065 | _DTV_CMD(DTV_ATSCMH_TNOG, 0, 0), | |
1066 | _DTV_CMD(DTV_ATSCMH_SGN, 0, 0), | |
1067 | _DTV_CMD(DTV_ATSCMH_PRC, 0, 0), | |
1068 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_MODE, 0, 0), | |
ca689488 MK |
1069 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_PRI, 0, 0), |
1070 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_SEC, 0, 0), | |
1071 | _DTV_CMD(DTV_ATSCMH_SCCC_BLOCK_MODE, 0, 0), | |
1072 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_A, 0, 0), | |
1073 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), | |
1074 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), | |
1075 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), | |
7cd4ece5 MCC |
1076 | |
1077 | /* Statistics API */ | |
1078 | _DTV_CMD(DTV_STAT_SIGNAL_STRENGTH, 0, 0), | |
1079 | _DTV_CMD(DTV_STAT_CNR, 0, 0), | |
1080 | _DTV_CMD(DTV_STAT_PRE_ERROR_BIT_COUNT, 0, 0), | |
1081 | _DTV_CMD(DTV_STAT_PRE_TOTAL_BIT_COUNT, 0, 0), | |
1082 | _DTV_CMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0, 0), | |
1083 | _DTV_CMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0, 0), | |
1084 | _DTV_CMD(DTV_STAT_ERROR_BLOCK_COUNT, 0, 0), | |
1085 | _DTV_CMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0, 0), | |
6b73eeaf ST |
1086 | }; |
1087 | ||
c29ebb64 MCC |
1088 | static void dtv_property_dump(struct dvb_frontend *fe, |
1089 | bool is_set, | |
1090 | struct dtv_property *tvp) | |
6b73eeaf ST |
1091 | { |
1092 | int i; | |
1093 | ||
106ff9e0 | 1094 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
c29ebb64 MCC |
1095 | dev_warn(fe->dvb->device, "%s: %s tvp.cmd = 0x%08x undefined\n", |
1096 | __func__, | |
1097 | is_set ? "SET" : "GET", | |
1098 | tvp->cmd); | |
4aae8efb DB |
1099 | return; |
1100 | } | |
1101 | ||
c29ebb64 MCC |
1102 | dev_dbg(fe->dvb->device, "%s: %s tvp.cmd = 0x%08x (%s)\n", __func__, |
1103 | is_set ? "SET" : "GET", | |
1104 | tvp->cmd, | |
1105 | dtv_cmds[tvp->cmd].name); | |
6b73eeaf | 1106 | |
36bdbc3f AP |
1107 | if (dtv_cmds[tvp->cmd].buffer) { |
1108 | dev_dbg(fe->dvb->device, "%s: tvp.u.buffer.len = 0x%02x\n", | |
1109 | __func__, tvp->u.buffer.len); | |
6b73eeaf ST |
1110 | |
1111 | for(i = 0; i < tvp->u.buffer.len; i++) | |
36bdbc3f AP |
1112 | dev_dbg(fe->dvb->device, |
1113 | "%s: tvp.u.buffer.data[0x%02x] = 0x%02x\n", | |
1114 | __func__, i, tvp->u.buffer.data[i]); | |
1115 | } else { | |
1116 | dev_dbg(fe->dvb->device, "%s: tvp.u.data = 0x%08x\n", __func__, | |
1117 | tvp->u.data); | |
1118 | } | |
6b73eeaf ST |
1119 | } |
1120 | ||
ee33c525 ST |
1121 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1122 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1123 | * it's being used for the legacy or new API, reducing code and complexity. | |
1124 | */ | |
5bfaadde MCC |
1125 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1126 | struct dtv_frontend_properties *c, | |
1127 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1128 | { |
ee33c525 ST |
1129 | c->frequency = p->frequency; |
1130 | c->inversion = p->inversion; | |
1131 | ||
5bfaadde MCC |
1132 | switch (dvbv3_type(c->delivery_system)) { |
1133 | case DVBV3_QPSK: | |
36bdbc3f | 1134 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
ee33c525 ST |
1135 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1136 | c->fec_inner = p->u.qpsk.fec_inner; | |
1137 | break; | |
5bfaadde | 1138 | case DVBV3_QAM: |
36bdbc3f | 1139 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
ee33c525 ST |
1140 | c->symbol_rate = p->u.qam.symbol_rate; |
1141 | c->fec_inner = p->u.qam.fec_inner; | |
1142 | c->modulation = p->u.qam.modulation; | |
1143 | break; | |
5bfaadde | 1144 | case DVBV3_OFDM: |
36bdbc3f AP |
1145 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
1146 | ||
9a27e6a0 MCC |
1147 | switch (p->u.ofdm.bandwidth) { |
1148 | case BANDWIDTH_10_MHZ: | |
1149 | c->bandwidth_hz = 10000000; | |
1150 | break; | |
1151 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1152 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1153 | break; |
1154 | case BANDWIDTH_7_MHZ: | |
1155 | c->bandwidth_hz = 7000000; | |
1156 | break; | |
1157 | case BANDWIDTH_6_MHZ: | |
1158 | c->bandwidth_hz = 6000000; | |
1159 | break; | |
1160 | case BANDWIDTH_5_MHZ: | |
1161 | c->bandwidth_hz = 5000000; | |
1162 | break; | |
1163 | case BANDWIDTH_1_712_MHZ: | |
1164 | c->bandwidth_hz = 1712000; | |
1165 | break; | |
1166 | case BANDWIDTH_AUTO: | |
75b7f943 | 1167 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1168 | } |
1169 | ||
ee33c525 ST |
1170 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1171 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1172 | c->modulation = p->u.ofdm.constellation; | |
1173 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1174 | c->guard_interval = p->u.ofdm.guard_interval; | |
1175 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1176 | break; | |
5bfaadde | 1177 | case DVBV3_ATSC: |
36bdbc3f | 1178 | dev_dbg(fe->dvb->device, "%s: Preparing ATSC req\n", __func__); |
ee33c525 | 1179 | c->modulation = p->u.vsb.modulation; |
ca689488 MK |
1180 | if (c->delivery_system == SYS_ATSCMH) |
1181 | break; | |
80a773c9 ST |
1182 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1183 | c->delivery_system = SYS_ATSC; | |
1184 | else | |
1185 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1186 | break; |
5bfaadde | 1187 | case DVBV3_UNKNOWN: |
36bdbc3f AP |
1188 | dev_err(fe->dvb->device, |
1189 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1190 | __func__, c->delivery_system); | |
5bfaadde | 1191 | return -EINVAL; |
ee33c525 | 1192 | } |
5bfaadde MCC |
1193 | |
1194 | return 0; | |
ee33c525 ST |
1195 | } |
1196 | ||
d5748f10 ST |
1197 | /* Ensure the cached values are set correctly in the frontend |
1198 | * legacy tuning structures, for the advanced tuning API. | |
1199 | */ | |
2ea9a08d MCC |
1200 | static int |
1201 | dtv_property_legacy_params_sync(struct dvb_frontend *fe, | |
1202 | const struct dtv_frontend_properties *c, | |
1203 | struct dvb_frontend_parameters *p) | |
6b73eeaf | 1204 | { |
d5748f10 ST |
1205 | p->frequency = c->frequency; |
1206 | p->inversion = c->inversion; | |
6b73eeaf | 1207 | |
5bfaadde MCC |
1208 | switch (dvbv3_type(c->delivery_system)) { |
1209 | case DVBV3_UNKNOWN: | |
36bdbc3f AP |
1210 | dev_err(fe->dvb->device, |
1211 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1212 | __func__, c->delivery_system); | |
5bfaadde MCC |
1213 | return -EINVAL; |
1214 | case DVBV3_QPSK: | |
36bdbc3f | 1215 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
d5748f10 ST |
1216 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1217 | p->u.qpsk.fec_inner = c->fec_inner; | |
1218 | break; | |
5bfaadde | 1219 | case DVBV3_QAM: |
36bdbc3f | 1220 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
d5748f10 ST |
1221 | p->u.qam.symbol_rate = c->symbol_rate; |
1222 | p->u.qam.fec_inner = c->fec_inner; | |
1223 | p->u.qam.modulation = c->modulation; | |
1224 | break; | |
5bfaadde | 1225 | case DVBV3_OFDM: |
36bdbc3f | 1226 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
9a27e6a0 MCC |
1227 | switch (c->bandwidth_hz) { |
1228 | case 10000000: | |
1229 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1230 | break; | |
1231 | case 8000000: | |
75b7f943 | 1232 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1233 | break; |
1234 | case 7000000: | |
1235 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1236 | break; | |
1237 | case 6000000: | |
1238 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1239 | break; | |
1240 | case 5000000: | |
1241 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1242 | break; | |
1243 | case 1712000: | |
1244 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1245 | break; | |
1246 | case 0: | |
1247 | default: | |
75b7f943 | 1248 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1249 | } |
d5748f10 ST |
1250 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1251 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1252 | p->u.ofdm.constellation = c->modulation; | |
1253 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1254 | p->u.ofdm.guard_interval = c->guard_interval; | |
1255 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1256 | break; | |
5bfaadde | 1257 | case DVBV3_ATSC: |
36bdbc3f | 1258 | dev_dbg(fe->dvb->device, "%s: Preparing VSB req\n", __func__); |
d5748f10 ST |
1259 | p->u.vsb.modulation = c->modulation; |
1260 | break; | |
1261 | } | |
5bfaadde | 1262 | return 0; |
6b73eeaf ST |
1263 | } |
1264 | ||
a689e365 MCC |
1265 | /** |
1266 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1267 | * @fe: struct dvb_frontend pointer | |
1268 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1269 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1270 | * | |
1271 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1272 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1273 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1274 | */ | |
1275 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
2ea9a08d | 1276 | struct dtv_frontend_properties *c, |
a689e365 MCC |
1277 | struct dvb_frontend_parameters *p_out) |
1278 | { | |
a689e365 MCC |
1279 | int r; |
1280 | ||
a689e365 | 1281 | if (fe->ops.get_frontend) { |
7e3e68bc | 1282 | r = fe->ops.get_frontend(fe, c); |
a689e365 MCC |
1283 | if (unlikely(r < 0)) |
1284 | return r; | |
7c61d80a | 1285 | if (p_out) |
2ea9a08d | 1286 | dtv_property_legacy_params_sync(fe, c, p_out); |
a689e365 MCC |
1287 | return 0; |
1288 | } | |
1289 | ||
7c61d80a | 1290 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1291 | return 0; |
a689e365 MCC |
1292 | } |
1293 | ||
16ef8def | 1294 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1295 | unsigned int cmd, void *parg); |
16ef8def | 1296 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1297 | unsigned int cmd, void *parg); |
1298 | ||
072ce0c5 | 1299 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1300 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1301 | struct dtv_property *tvp, |
16ef8def | 1302 | struct file *file) |
363429a0 | 1303 | { |
5bfaadde | 1304 | int r, ncaps; |
bfbf2dae | 1305 | |
363429a0 | 1306 | switch(tvp->cmd) { |
ba2780c7 | 1307 | case DTV_ENUM_DELSYS: |
5bfaadde | 1308 | ncaps = 0; |
0123f29c | 1309 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
5bfaadde MCC |
1310 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; |
1311 | ncaps++; | |
1312 | } | |
1313 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1314 | break; |
363429a0 | 1315 | case DTV_FREQUENCY: |
50727719 | 1316 | tvp->u.data = c->frequency; |
363429a0 ST |
1317 | break; |
1318 | case DTV_MODULATION: | |
50727719 | 1319 | tvp->u.data = c->modulation; |
363429a0 | 1320 | break; |
75b7f943 | 1321 | case DTV_BANDWIDTH_HZ: |
50727719 | 1322 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1323 | break; |
1324 | case DTV_INVERSION: | |
50727719 | 1325 | tvp->u.data = c->inversion; |
363429a0 ST |
1326 | break; |
1327 | case DTV_SYMBOL_RATE: | |
50727719 | 1328 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1329 | break; |
1330 | case DTV_INNER_FEC: | |
50727719 | 1331 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1332 | break; |
1333 | case DTV_PILOT: | |
50727719 | 1334 | tvp->u.data = c->pilot; |
363429a0 ST |
1335 | break; |
1336 | case DTV_ROLLOFF: | |
50727719 | 1337 | tvp->u.data = c->rolloff; |
363429a0 ST |
1338 | break; |
1339 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1340 | tvp->u.data = c->delivery_system; |
363429a0 | 1341 | break; |
363429a0 | 1342 | case DTV_VOLTAGE: |
50727719 | 1343 | tvp->u.data = c->voltage; |
363429a0 ST |
1344 | break; |
1345 | case DTV_TONE: | |
50727719 | 1346 | tvp->u.data = c->sectone; |
363429a0 | 1347 | break; |
eacf8d8d ST |
1348 | case DTV_API_VERSION: |
1349 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1350 | break; | |
a4de91be | 1351 | case DTV_CODE_RATE_HP: |
50727719 | 1352 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1353 | break; |
1354 | case DTV_CODE_RATE_LP: | |
50727719 | 1355 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1356 | break; |
b87625f0 | 1357 | case DTV_GUARD_INTERVAL: |
50727719 | 1358 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1359 | break; |
1360 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1361 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1362 | break; |
ef526f42 | 1363 | case DTV_HIERARCHY: |
50727719 | 1364 | tvp->u.data = c->hierarchy; |
ef526f42 | 1365 | break; |
224b6642 AP |
1366 | case DTV_INTERLEAVING: |
1367 | tvp->u.data = c->interleaving; | |
1368 | break; | |
b6e760f3 PB |
1369 | |
1370 | /* ISDB-T Support here */ | |
1371 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1372 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1373 | break; |
1374 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1375 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1376 | break; |
1377 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1378 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1379 | break; |
1380 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1381 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1382 | break; |
1383 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1384 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1385 | break; |
e7b7949a | 1386 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1387 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1388 | break; |
b6e760f3 | 1389 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1390 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1391 | break; |
1392 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1393 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1394 | break; |
1395 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1396 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1397 | break; |
1398 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1399 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1400 | break; |
1401 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1402 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1403 | break; |
1404 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1405 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1406 | break; |
1407 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1408 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1409 | break; |
1410 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1411 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1412 | break; |
1413 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1414 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1415 | break; |
1416 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1417 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1418 | break; |
1419 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1420 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1421 | break; |
1422 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1423 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1424 | break; |
287cefd0 EP |
1425 | |
1426 | /* Multistream support */ | |
1427 | case DTV_STREAM_ID: | |
1428 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1429 | tvp->u.data = c->stream_id; | |
94d56ffa | 1430 | break; |
ca689488 MK |
1431 | |
1432 | /* ATSC-MH */ | |
1433 | case DTV_ATSCMH_FIC_VER: | |
1434 | tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver; | |
1435 | break; | |
1436 | case DTV_ATSCMH_PARADE_ID: | |
1437 | tvp->u.data = fe->dtv_property_cache.atscmh_parade_id; | |
1438 | break; | |
1439 | case DTV_ATSCMH_NOG: | |
1440 | tvp->u.data = fe->dtv_property_cache.atscmh_nog; | |
1441 | break; | |
1442 | case DTV_ATSCMH_TNOG: | |
1443 | tvp->u.data = fe->dtv_property_cache.atscmh_tnog; | |
1444 | break; | |
1445 | case DTV_ATSCMH_SGN: | |
1446 | tvp->u.data = fe->dtv_property_cache.atscmh_sgn; | |
1447 | break; | |
1448 | case DTV_ATSCMH_PRC: | |
1449 | tvp->u.data = fe->dtv_property_cache.atscmh_prc; | |
1450 | break; | |
1451 | case DTV_ATSCMH_RS_FRAME_MODE: | |
1452 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_mode; | |
1453 | break; | |
1454 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1455 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_ensemble; | |
1456 | break; | |
1457 | case DTV_ATSCMH_RS_CODE_MODE_PRI: | |
1458 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_pri; | |
1459 | break; | |
1460 | case DTV_ATSCMH_RS_CODE_MODE_SEC: | |
1461 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_sec; | |
1462 | break; | |
1463 | case DTV_ATSCMH_SCCC_BLOCK_MODE: | |
1464 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_block_mode; | |
1465 | break; | |
1466 | case DTV_ATSCMH_SCCC_CODE_MODE_A: | |
1467 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_a; | |
1468 | break; | |
1469 | case DTV_ATSCMH_SCCC_CODE_MODE_B: | |
1470 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_b; | |
1471 | break; | |
1472 | case DTV_ATSCMH_SCCC_CODE_MODE_C: | |
1473 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_c; | |
1474 | break; | |
1475 | case DTV_ATSCMH_SCCC_CODE_MODE_D: | |
1476 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; | |
1477 | break; | |
ca689488 | 1478 | |
33eebec5 AP |
1479 | case DTV_LNA: |
1480 | tvp->u.data = c->lna; | |
1481 | break; | |
1482 | ||
7cd4ece5 MCC |
1483 | /* Fill quality measures */ |
1484 | case DTV_STAT_SIGNAL_STRENGTH: | |
1485 | tvp->u.st = c->strength; | |
1486 | break; | |
1487 | case DTV_STAT_CNR: | |
1488 | tvp->u.st = c->cnr; | |
1489 | break; | |
1490 | case DTV_STAT_PRE_ERROR_BIT_COUNT: | |
1491 | tvp->u.st = c->pre_bit_error; | |
1492 | break; | |
1493 | case DTV_STAT_PRE_TOTAL_BIT_COUNT: | |
1494 | tvp->u.st = c->pre_bit_count; | |
1495 | break; | |
1496 | case DTV_STAT_POST_ERROR_BIT_COUNT: | |
1497 | tvp->u.st = c->post_bit_error; | |
1498 | break; | |
1499 | case DTV_STAT_POST_TOTAL_BIT_COUNT: | |
1500 | tvp->u.st = c->post_bit_count; | |
1501 | break; | |
1502 | case DTV_STAT_ERROR_BLOCK_COUNT: | |
1503 | tvp->u.st = c->block_error; | |
1504 | break; | |
1505 | case DTV_STAT_TOTAL_BLOCK_COUNT: | |
1506 | tvp->u.st = c->block_count; | |
1507 | break; | |
363429a0 | 1508 | default: |
94a93e5f MCC |
1509 | dev_dbg(fe->dvb->device, |
1510 | "%s: FE property %d doesn't exist\n", | |
1511 | __func__, tvp->cmd); | |
aff8ab5c | 1512 | return -EINVAL; |
363429a0 ST |
1513 | } |
1514 | ||
e23d9ae3 AO |
1515 | /* Allow the frontend to override outgoing properties */ |
1516 | if (fe->ops.get_property) { | |
1517 | r = fe->ops.get_property(fe, tvp); | |
1518 | if (r < 0) | |
1519 | return r; | |
1520 | } | |
1521 | ||
c29ebb64 | 1522 | dtv_property_dump(fe, false, tvp); |
639544d7 | 1523 | |
aff8ab5c | 1524 | return 0; |
363429a0 ST |
1525 | } |
1526 | ||
5bfaadde MCC |
1527 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1528 | ||
04be0f76 MCC |
1529 | static bool is_dvbv3_delsys(u32 delsys) |
1530 | { | |
29a8d979 MY |
1531 | return (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || |
1532 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
04be0f76 MCC |
1533 | } |
1534 | ||
52dee392 MCC |
1535 | /** |
1536 | * emulate_delivery_system - emulate a DVBv5 delivery system with a DVBv3 type | |
1537 | * @fe: struct frontend; | |
1538 | * @delsys: DVBv5 type that will be used for emulation | |
1539 | * | |
1540 | * Provides emulation for delivery systems that are compatible with the old | |
1541 | * DVBv3 call. Among its usages, it provices support for ISDB-T, and allows | |
1542 | * using a DVB-S2 only frontend just like it were a DVB-S, if the frontent | |
1543 | * parameters are compatible with DVB-S spec. | |
1544 | */ | |
1545 | static int emulate_delivery_system(struct dvb_frontend *fe, u32 delsys) | |
04be0f76 | 1546 | { |
be431b16 | 1547 | int i; |
04be0f76 | 1548 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
04be0f76 | 1549 | |
3626479e MCC |
1550 | c->delivery_system = delsys; |
1551 | ||
04be0f76 | 1552 | /* |
52dee392 | 1553 | * If the call is for ISDB-T, put it into full-seg, auto mode, TV |
04be0f76 | 1554 | */ |
52dee392 MCC |
1555 | if (c->delivery_system == SYS_ISDBT) { |
1556 | dev_dbg(fe->dvb->device, | |
1557 | "%s: Using defaults for SYS_ISDBT\n", | |
1558 | __func__); | |
04be0f76 | 1559 | |
52dee392 MCC |
1560 | if (!c->bandwidth_hz) |
1561 | c->bandwidth_hz = 6000000; | |
1562 | ||
1563 | c->isdbt_partial_reception = 0; | |
1564 | c->isdbt_sb_mode = 0; | |
1565 | c->isdbt_sb_subchannel = 0; | |
1566 | c->isdbt_sb_segment_idx = 0; | |
1567 | c->isdbt_sb_segment_count = 0; | |
1568 | c->isdbt_layer_enabled = 7; | |
1569 | for (i = 0; i < 3; i++) { | |
1570 | c->layer[i].fec = FEC_AUTO; | |
1571 | c->layer[i].modulation = QAM_AUTO; | |
1572 | c->layer[i].interleaving = 0; | |
1573 | c->layer[i].segment_count = 0; | |
04be0f76 MCC |
1574 | } |
1575 | } | |
36bdbc3f | 1576 | dev_dbg(fe->dvb->device, "%s: change delivery system on cache to %d\n", |
52dee392 | 1577 | __func__, c->delivery_system); |
9474c5e6 | 1578 | |
04be0f76 MCC |
1579 | return 0; |
1580 | } | |
1581 | ||
52dee392 MCC |
1582 | /** |
1583 | * dvbv5_set_delivery_system - Sets the delivery system for a DVBv5 API call | |
1584 | * @fe: frontend struct | |
1585 | * @desired_system: delivery system requested by the user | |
1586 | * | |
1587 | * A DVBv5 call know what's the desired system it wants. So, set it. | |
1588 | * | |
1589 | * There are, however, a few known issues with early DVBv5 applications that | |
1590 | * are also handled by this logic: | |
1591 | * | |
1592 | * 1) Some early apps use SYS_UNDEFINED as the desired delivery system. | |
1593 | * This is an API violation, but, as we don't want to break userspace, | |
1594 | * convert it to the first supported delivery system. | |
1595 | * 2) Some apps might be using a DVBv5 call in a wrong way, passing, for | |
1596 | * example, SYS_DVBT instead of SYS_ISDBT. This is because early usage of | |
1597 | * ISDB-T provided backward compat with DVB-T. | |
1598 | */ | |
be431b16 MCC |
1599 | static int dvbv5_set_delivery_system(struct dvb_frontend *fe, |
1600 | u32 desired_system) | |
1601 | { | |
1602 | int ncaps; | |
1603 | u32 delsys = SYS_UNDEFINED; | |
1604 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1605 | enum dvbv3_emulation_type type; | |
1606 | ||
1607 | /* | |
1608 | * It was reported that some old DVBv5 applications were | |
1609 | * filling delivery_system with SYS_UNDEFINED. If this happens, | |
1610 | * assume that the application wants to use the first supported | |
1611 | * delivery system. | |
1612 | */ | |
52dee392 MCC |
1613 | if (desired_system == SYS_UNDEFINED) |
1614 | desired_system = fe->ops.delsys[0]; | |
be431b16 MCC |
1615 | |
1616 | /* | |
52dee392 MCC |
1617 | * This is a DVBv5 call. So, it likely knows the supported |
1618 | * delivery systems. So, check if the desired delivery system is | |
1619 | * supported | |
1620 | */ | |
be431b16 | 1621 | ncaps = 0; |
0123f29c | 1622 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
be431b16 MCC |
1623 | if (fe->ops.delsys[ncaps] == desired_system) { |
1624 | c->delivery_system = desired_system; | |
1625 | dev_dbg(fe->dvb->device, | |
1626 | "%s: Changing delivery system to %d\n", | |
1627 | __func__, desired_system); | |
1628 | return 0; | |
1629 | } | |
1630 | ncaps++; | |
1631 | } | |
1632 | ||
1633 | /* | |
52dee392 MCC |
1634 | * The requested delivery system isn't supported. Maybe userspace |
1635 | * is requesting a DVBv3 compatible delivery system. | |
1636 | * | |
1637 | * The emulation only works if the desired system is one of the | |
1638 | * delivery systems supported by DVBv3 API | |
be431b16 | 1639 | */ |
be431b16 MCC |
1640 | if (!is_dvbv3_delsys(desired_system)) { |
1641 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1642 | "%s: Delivery system %d not supported.\n", |
1643 | __func__, desired_system); | |
be431b16 MCC |
1644 | return -EINVAL; |
1645 | } | |
1646 | ||
52dee392 MCC |
1647 | type = dvbv3_type(desired_system); |
1648 | ||
be431b16 MCC |
1649 | /* |
1650 | * Get the last non-DVBv3 delivery system that has the same type | |
1651 | * of the desired system | |
1652 | */ | |
1653 | ncaps = 0; | |
0123f29c | 1654 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
52dee392 | 1655 | if (dvbv3_type(fe->ops.delsys[ncaps]) == type) |
be431b16 MCC |
1656 | delsys = fe->ops.delsys[ncaps]; |
1657 | ncaps++; | |
1658 | } | |
52dee392 | 1659 | |
be431b16 MCC |
1660 | /* There's nothing compatible with the desired delivery system */ |
1661 | if (delsys == SYS_UNDEFINED) { | |
1662 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1663 | "%s: Delivery system %d not supported on emulation mode.\n", |
1664 | __func__, desired_system); | |
be431b16 MCC |
1665 | return -EINVAL; |
1666 | } | |
1667 | ||
52dee392 MCC |
1668 | dev_dbg(fe->dvb->device, |
1669 | "%s: Using delivery system %d emulated as if it were %d\n", | |
1670 | __func__, delsys, desired_system); | |
1671 | ||
1672 | return emulate_delivery_system(fe, desired_system); | |
be431b16 MCC |
1673 | } |
1674 | ||
52dee392 MCC |
1675 | /** |
1676 | * dvbv3_set_delivery_system - Sets the delivery system for a DVBv3 API call | |
1677 | * @fe: frontend struct | |
1678 | * | |
1679 | * A DVBv3 call doesn't know what's the desired system it wants. It also | |
1680 | * doesn't allow to switch between different types. Due to that, userspace | |
1681 | * should use DVBv5 instead. | |
1682 | * However, in order to avoid breaking userspace API, limited backward | |
1683 | * compatibility support is provided. | |
1684 | * | |
1685 | * There are some delivery systems that are incompatible with DVBv3 calls. | |
1686 | * | |
1687 | * This routine should work fine for frontends that support just one delivery | |
1688 | * system. | |
1689 | * | |
1690 | * For frontends that support multiple frontends: | |
1691 | * 1) It defaults to use the first supported delivery system. There's an | |
1692 | * userspace application that allows changing it at runtime; | |
1693 | * | |
1694 | * 2) If the current delivery system is not compatible with DVBv3, it gets | |
1695 | * the first one that it is compatible. | |
1696 | * | |
1697 | * NOTE: in order for this to work with applications like Kaffeine that | |
1698 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to | |
1699 | * DVB-S, drivers that support both DVB-S and DVB-S2 should have the | |
1700 | * SYS_DVBS entry before the SYS_DVBS2, otherwise it won't switch back | |
1701 | * to DVB-S. | |
1702 | */ | |
be431b16 MCC |
1703 | static int dvbv3_set_delivery_system(struct dvb_frontend *fe) |
1704 | { | |
1705 | int ncaps; | |
be431b16 MCC |
1706 | u32 delsys = SYS_UNDEFINED; |
1707 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
be431b16 MCC |
1708 | |
1709 | /* If not set yet, defaults to the first supported delivery system */ | |
1710 | if (c->delivery_system == SYS_UNDEFINED) | |
1711 | c->delivery_system = fe->ops.delsys[0]; | |
1712 | ||
be431b16 MCC |
1713 | /* |
1714 | * Trivial case: just use the current one, if it already a DVBv3 | |
1715 | * delivery system | |
1716 | */ | |
1717 | if (is_dvbv3_delsys(c->delivery_system)) { | |
1718 | dev_dbg(fe->dvb->device, | |
1719 | "%s: Using delivery system to %d\n", | |
1720 | __func__, c->delivery_system); | |
1721 | return 0; | |
1722 | } | |
1723 | ||
be431b16 | 1724 | /* |
52dee392 MCC |
1725 | * Seek for the first delivery system that it is compatible with a |
1726 | * DVBv3 standard | |
be431b16 MCC |
1727 | */ |
1728 | ncaps = 0; | |
0123f29c | 1729 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
52dee392 MCC |
1730 | if (dvbv3_type(fe->ops.delsys[ncaps]) != DVBV3_UNKNOWN) { |
1731 | delsys = fe->ops.delsys[ncaps]; | |
be431b16 MCC |
1732 | break; |
1733 | } | |
1734 | ncaps++; | |
1735 | } | |
1736 | if (delsys == SYS_UNDEFINED) { | |
52dee392 MCC |
1737 | dev_dbg(fe->dvb->device, |
1738 | "%s: Couldn't find a delivery system that works with FE_SET_FRONTEND\n", | |
1739 | __func__); | |
1740 | return -EINVAL; | |
be431b16 | 1741 | } |
52dee392 | 1742 | return emulate_delivery_system(fe, delsys); |
be431b16 MCC |
1743 | } |
1744 | ||
072ce0c5 MCC |
1745 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1746 | struct dtv_property *tvp, | |
072ce0c5 | 1747 | struct file *file) |
6b73eeaf ST |
1748 | { |
1749 | int r = 0; | |
50727719 | 1750 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1751 | |
bfbf2dae | 1752 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1753 | if (fe->ops.set_property) { |
bfbf2dae | 1754 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1755 | if (r < 0) |
1756 | return r; | |
1757 | } | |
bfbf2dae | 1758 | |
c29ebb64 MCC |
1759 | dtv_property_dump(fe, true, tvp); |
1760 | ||
6b73eeaf | 1761 | switch(tvp->cmd) { |
e7fee0f3 | 1762 | case DTV_CLEAR: |
5bfaadde MCC |
1763 | /* |
1764 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1765 | * not effect hardware. |
1766 | */ | |
b6e760f3 | 1767 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1768 | break; |
e7fee0f3 | 1769 | case DTV_TUNE: |
6b73eeaf | 1770 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1771 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1772 | * ioctl. | |
6b73eeaf | 1773 | */ |
50727719 | 1774 | c->state = tvp->cmd; |
36bdbc3f AP |
1775 | dev_dbg(fe->dvb->device, "%s: Finalised property cache\n", |
1776 | __func__); | |
d5748f10 | 1777 | |
5bfaadde | 1778 | r = dtv_set_frontend(fe); |
6b73eeaf | 1779 | break; |
363429a0 | 1780 | case DTV_FREQUENCY: |
50727719 | 1781 | c->frequency = tvp->u.data; |
6b73eeaf | 1782 | break; |
363429a0 | 1783 | case DTV_MODULATION: |
50727719 | 1784 | c->modulation = tvp->u.data; |
6b73eeaf | 1785 | break; |
75b7f943 | 1786 | case DTV_BANDWIDTH_HZ: |
50727719 | 1787 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1788 | break; |
363429a0 | 1789 | case DTV_INVERSION: |
50727719 | 1790 | c->inversion = tvp->u.data; |
6b73eeaf | 1791 | break; |
363429a0 | 1792 | case DTV_SYMBOL_RATE: |
50727719 | 1793 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1794 | break; |
363429a0 | 1795 | case DTV_INNER_FEC: |
50727719 | 1796 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1797 | break; |
363429a0 | 1798 | case DTV_PILOT: |
50727719 | 1799 | c->pilot = tvp->u.data; |
6b73eeaf | 1800 | break; |
363429a0 | 1801 | case DTV_ROLLOFF: |
50727719 | 1802 | c->rolloff = tvp->u.data; |
6b73eeaf | 1803 | break; |
363429a0 | 1804 | case DTV_DELIVERY_SYSTEM: |
be431b16 | 1805 | r = dvbv5_set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1806 | break; |
363429a0 | 1807 | case DTV_VOLTAGE: |
50727719 | 1808 | c->voltage = tvp->u.data; |
16ef8def | 1809 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1810 | (void *)c->voltage); |
13c97bf5 | 1811 | break; |
363429a0 | 1812 | case DTV_TONE: |
50727719 | 1813 | c->sectone = tvp->u.data; |
16ef8def | 1814 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1815 | (void *)c->sectone); |
13c97bf5 | 1816 | break; |
a4de91be | 1817 | case DTV_CODE_RATE_HP: |
50727719 | 1818 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1819 | break; |
1820 | case DTV_CODE_RATE_LP: | |
50727719 | 1821 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1822 | break; |
b87625f0 | 1823 | case DTV_GUARD_INTERVAL: |
50727719 | 1824 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1825 | break; |
1826 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1827 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1828 | break; |
ef526f42 | 1829 | case DTV_HIERARCHY: |
50727719 | 1830 | c->hierarchy = tvp->u.data; |
ef526f42 | 1831 | break; |
224b6642 AP |
1832 | case DTV_INTERLEAVING: |
1833 | c->interleaving = tvp->u.data; | |
1834 | break; | |
b6e760f3 PB |
1835 | |
1836 | /* ISDB-T Support here */ | |
1837 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1838 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1839 | break; |
1840 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1841 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1842 | break; |
1843 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1844 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1845 | break; |
1846 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1847 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1848 | break; |
1849 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1850 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1851 | break; |
e7b7949a | 1852 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1853 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1854 | break; |
b6e760f3 | 1855 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1856 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1857 | break; |
1858 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1859 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1860 | break; |
1861 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1862 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1863 | break; |
1864 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1865 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1866 | break; |
1867 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1868 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1869 | break; |
1870 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1871 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1872 | break; |
1873 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1874 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1875 | break; |
1876 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1877 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1878 | break; |
1879 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1880 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1881 | break; |
1882 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1883 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1884 | break; |
1885 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1886 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1887 | break; |
1888 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1889 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1890 | break; |
287cefd0 EP |
1891 | |
1892 | /* Multistream support */ | |
1893 | case DTV_STREAM_ID: | |
1894 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1895 | c->stream_id = tvp->u.data; | |
98293ef3 | 1896 | break; |
ca689488 MK |
1897 | |
1898 | /* ATSC-MH */ | |
1899 | case DTV_ATSCMH_PARADE_ID: | |
1900 | fe->dtv_property_cache.atscmh_parade_id = tvp->u.data; | |
1901 | break; | |
1902 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1903 | fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; | |
1904 | break; | |
1905 | ||
33eebec5 AP |
1906 | case DTV_LNA: |
1907 | c->lna = tvp->u.data; | |
1908 | if (fe->ops.set_lna) | |
1909 | r = fe->ops.set_lna(fe); | |
e6876692 MCC |
1910 | if (r < 0) |
1911 | c->lna = LNA_AUTO; | |
33eebec5 AP |
1912 | break; |
1913 | ||
363429a0 | 1914 | default: |
aff8ab5c | 1915 | return -EINVAL; |
6b73eeaf ST |
1916 | } |
1917 | ||
13c97bf5 | 1918 | return r; |
6b73eeaf ST |
1919 | } |
1920 | ||
16ef8def | 1921 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1922 | unsigned int cmd, void *parg) |
1923 | { | |
1924 | struct dvb_device *dvbdev = file->private_data; | |
1925 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1926 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1927 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac897586 | 1928 | int err = -EOPNOTSUPP; |
1da177e4 | 1929 | |
36bdbc3f | 1930 | dev_dbg(fe->dvb->device, "%s: (%d)\n", __func__, _IOC_NR(cmd)); |
6ae23224 JL |
1931 | if (down_interruptible(&fepriv->sem)) |
1932 | return -ERESTARTSYS; | |
1933 | ||
18ed2860 | 1934 | if (fe->exit != DVB_FE_NO_EXIT) { |
6ae23224 | 1935 | up(&fepriv->sem); |
1da177e4 | 1936 | return -ENODEV; |
6ae23224 | 1937 | } |
1da177e4 LT |
1938 | |
1939 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1940 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
6ae23224 JL |
1941 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) { |
1942 | up(&fepriv->sem); | |
1da177e4 | 1943 | return -EPERM; |
6ae23224 | 1944 | } |
1da177e4 | 1945 | |
13c97bf5 | 1946 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1947 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1948 | else { |
50727719 | 1949 | c->state = DTV_UNDEFINED; |
16ef8def | 1950 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1951 | } |
13c97bf5 ST |
1952 | |
1953 | up(&fepriv->sem); | |
1954 | return err; | |
1955 | } | |
1956 | ||
16ef8def | 1957 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1958 | unsigned int cmd, void *parg) |
1959 | { | |
1960 | struct dvb_device *dvbdev = file->private_data; | |
1961 | struct dvb_frontend *fe = dvbdev->priv; | |
51dcb19a | 1962 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
50727719 | 1963 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1964 | int err = 0; |
e7fee0f3 | 1965 | |
71d1b2be | 1966 | struct dtv_properties *tvps = parg; |
e7fee0f3 ST |
1967 | struct dtv_property *tvp = NULL; |
1968 | int i; | |
13c97bf5 | 1969 | |
36bdbc3f | 1970 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
13c97bf5 | 1971 | |
71d1b2be | 1972 | if (cmd == FE_SET_PROPERTY) { |
36bdbc3f AP |
1973 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1974 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1975 | |
1976 | /* Put an arbitrary limit on the number of messages that can | |
1977 | * be sent at once */ | |
6068f506 | 1978 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1979 | return -EINVAL; |
1980 | ||
fb660928 ME |
1981 | tvp = memdup_user(tvps->props, tvps->num * sizeof(*tvp)); |
1982 | if (IS_ERR(tvp)) | |
1983 | return PTR_ERR(tvp); | |
e7fee0f3 | 1984 | |
d48cb402 | 1985 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1986 | err = dtv_property_process_set(fe, tvp + i, file); |
1987 | if (err < 0) | |
1988 | goto out; | |
1989 | (tvp + i)->result = err; | |
d48cb402 | 1990 | } |
e7fee0f3 | 1991 | |
50727719 | 1992 | if (c->state == DTV_TUNE) |
36bdbc3f | 1993 | dev_dbg(fe->dvb->device, "%s: Property cache is full, tuning\n", __func__); |
bfbf2dae | 1994 | |
71d1b2be | 1995 | } else if (cmd == FE_GET_PROPERTY) { |
bb31d238 MCC |
1996 | struct dtv_frontend_properties getp = fe->dtv_property_cache; |
1997 | ||
36bdbc3f AP |
1998 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1999 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
2000 | |
2001 | /* Put an arbitrary limit on the number of messages that can | |
2002 | * be sent at once */ | |
6068f506 | 2003 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
2004 | return -EINVAL; |
2005 | ||
fb660928 ME |
2006 | tvp = memdup_user(tvps->props, tvps->num * sizeof(*tvp)); |
2007 | if (IS_ERR(tvp)) | |
2008 | return PTR_ERR(tvp); | |
363429a0 | 2009 | |
a689e365 | 2010 | /* |
bb31d238 MCC |
2011 | * Let's use our own copy of property cache, in order to |
2012 | * avoid mangling with DTV zigzag logic, as drivers might | |
2013 | * return crap, if they don't check if the data is available | |
2014 | * before updating the properties cache. | |
a689e365 | 2015 | */ |
51dcb19a | 2016 | if (fepriv->state != FESTATE_IDLE) { |
bb31d238 | 2017 | err = dtv_get_frontend(fe, &getp, NULL); |
51dcb19a MCC |
2018 | if (err < 0) |
2019 | goto out; | |
2020 | } | |
d48cb402 | 2021 | for (i = 0; i < tvps->num; i++) { |
bb31d238 | 2022 | err = dtv_property_process_get(fe, &getp, tvp + i, file); |
aff8ab5c AO |
2023 | if (err < 0) |
2024 | goto out; | |
2025 | (tvp + i)->result = err; | |
d48cb402 | 2026 | } |
363429a0 | 2027 | |
71d1b2be MCC |
2028 | if (copy_to_user((void __user *)tvps->props, tvp, |
2029 | tvps->num * sizeof(struct dtv_property))) { | |
363429a0 ST |
2030 | err = -EFAULT; |
2031 | goto out; | |
2032 | } | |
2033 | ||
363429a0 | 2034 | } else |
ac897586 | 2035 | err = -EOPNOTSUPP; |
363429a0 | 2036 | |
e7fee0f3 ST |
2037 | out: |
2038 | kfree(tvp); | |
13c97bf5 ST |
2039 | return err; |
2040 | } | |
2041 | ||
5bfaadde | 2042 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 2043 | { |
9682cea2 MCC |
2044 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
2045 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
2046 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 2047 | u32 rolloff = 0; |
9682cea2 | 2048 | |
5bfaadde MCC |
2049 | if (dvb_frontend_check_parameters(fe) < 0) |
2050 | return -EINVAL; | |
9682cea2 | 2051 | |
556a0442 CR |
2052 | /* |
2053 | * Initialize output parameters to match the values given by | |
2054 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
2055 | * with status = 0, which copies output parameters to userspace. | |
2056 | */ | |
2ea9a08d | 2057 | dtv_property_legacy_params_sync(fe, c, &fepriv->parameters_out); |
556a0442 | 2058 | |
5bfaadde MCC |
2059 | /* |
2060 | * Be sure that the bandwidth will be filled for all | |
2061 | * non-satellite systems, as tuners need to know what | |
2062 | * low pass/Nyquist half filter should be applied, in | |
2063 | * order to avoid inter-channel noise. | |
2064 | * | |
2065 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
2066 | * ATSC and DVB-C don't set, so, the core should fill it. | |
2067 | * | |
2068 | * On DVB-C Annex A and C, the bandwidth is a function of | |
2069 | * the roll-off and symbol rate. Annex B defines different | |
2070 | * roll-off factors depending on the modulation. Fortunately, | |
2071 | * Annex B is only used with 6MHz, so there's no need to | |
2072 | * calculate it. | |
2073 | * | |
2074 | * While not officially supported, a side effect of handling it at | |
2075 | * the cache level is that a program could retrieve the bandwidth | |
2076 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
2077 | */ | |
2078 | switch (c->delivery_system) { | |
2079 | case SYS_ATSC: | |
2080 | case SYS_DVBC_ANNEX_B: | |
2081 | c->bandwidth_hz = 6000000; | |
2082 | break; | |
2083 | case SYS_DVBC_ANNEX_A: | |
2084 | rolloff = 115; | |
2085 | break; | |
2086 | case SYS_DVBC_ANNEX_C: | |
2087 | rolloff = 113; | |
2088 | break; | |
c623ed63 MCC |
2089 | case SYS_DVBS: |
2090 | case SYS_TURBO: | |
8e281faf | 2091 | case SYS_ISDBS: |
c623ed63 MCC |
2092 | rolloff = 135; |
2093 | break; | |
2094 | case SYS_DVBS2: | |
2095 | switch (c->rolloff) { | |
2096 | case ROLLOFF_20: | |
2097 | rolloff = 120; | |
2098 | break; | |
2099 | case ROLLOFF_25: | |
2100 | rolloff = 125; | |
2101 | break; | |
2102 | default: | |
2103 | case ROLLOFF_35: | |
2104 | rolloff = 135; | |
2105 | } | |
2106 | break; | |
5bfaadde MCC |
2107 | default: |
2108 | break; | |
2109 | } | |
2110 | if (rolloff) | |
2a80f296 | 2111 | c->bandwidth_hz = mult_frac(c->symbol_rate, rolloff, 100); |
9682cea2 MCC |
2112 | |
2113 | /* force auto frequency inversion if requested */ | |
5bfaadde | 2114 | if (dvb_force_auto_inversion) |
9682cea2 | 2115 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
2116 | |
2117 | /* | |
2118 | * without hierarchical coding code_rate_LP is irrelevant, | |
2119 | * so we tolerate the otherwise invalid FEC_NONE setting | |
2120 | */ | |
2121 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
2122 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
2123 | |
2124 | /* get frontend-specific tuning settings */ | |
5bfaadde | 2125 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
2126 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
2127 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
2128 | fepriv->max_drift = fetunesettings.max_drift; | |
2129 | fepriv->step_size = fetunesettings.step_size; | |
2130 | } else { | |
2131 | /* default values */ | |
5bfaadde | 2132 | switch (c->delivery_system) { |
910a5f2e MCC |
2133 | case SYS_DVBS: |
2134 | case SYS_DVBS2: | |
2135 | case SYS_ISDBS: | |
2136 | case SYS_TURBO: | |
5bfaadde MCC |
2137 | case SYS_DVBC_ANNEX_A: |
2138 | case SYS_DVBC_ANNEX_C: | |
2139 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
2140 | fepriv->step_size = c->symbol_rate / 16000; |
2141 | fepriv->max_drift = c->symbol_rate / 2000; | |
2142 | break; | |
5bfaadde MCC |
2143 | case SYS_DVBT: |
2144 | case SYS_DVBT2: | |
2145 | case SYS_ISDBT: | |
224b6642 | 2146 | case SYS_DTMB: |
5bfaadde | 2147 | fepriv->min_delay = HZ / 20; |
9682cea2 MCC |
2148 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
2149 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
2150 | break; | |
5bfaadde MCC |
2151 | default: |
2152 | /* | |
2153 | * FIXME: This sounds wrong! if freqency_stepsize is | |
2154 | * defined by the frontend, why not use it??? | |
2155 | */ | |
2156 | fepriv->min_delay = HZ / 20; | |
2157 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
2158 | fepriv->max_drift = 0; |
2159 | break; | |
2160 | } | |
2161 | } | |
2162 | if (dvb_override_tune_delay > 0) | |
2163 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
2164 | ||
2165 | fepriv->state = FESTATE_RETUNE; | |
2166 | ||
2167 | /* Request the search algorithm to search */ | |
2168 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
2169 | ||
2170 | dvb_frontend_clear_events(fe); | |
2171 | dvb_frontend_add_event(fe, 0); | |
2172 | dvb_frontend_wakeup(fe); | |
2173 | fepriv->status = 0; | |
2174 | ||
2175 | return 0; | |
2176 | } | |
2177 | ||
2178 | ||
16ef8def | 2179 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
2180 | unsigned int cmd, void *parg) |
2181 | { | |
2182 | struct dvb_device *dvbdev = file->private_data; | |
2183 | struct dvb_frontend *fe = dvbdev->priv; | |
2184 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 2185 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
ac897586 | 2186 | int err = -EOPNOTSUPP; |
13c97bf5 | 2187 | |
1da177e4 LT |
2188 | switch (cmd) { |
2189 | case FE_GET_INFO: { | |
0c53c70f | 2190 | struct dvb_frontend_info* info = parg; |
9474c5e6 | 2191 | |
dea74869 | 2192 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 2193 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 2194 | |
5bfaadde MCC |
2195 | /* |
2196 | * Associate the 4 delivery systems supported by DVBv3 | |
2197 | * API with their DVBv5 counterpart. For the other standards, | |
2198 | * use the closest type, assuming that it would hopefully | |
2199 | * work with a DVBv3 application. | |
2200 | * It should be noticed that, on multi-frontend devices with | |
2201 | * different types (terrestrial and cable, for example), | |
2202 | * a pure DVBv3 application won't be able to use all delivery | |
2203 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
2204 | * system should be enough for making it work. | |
2205 | */ | |
2206 | switch (dvbv3_type(c->delivery_system)) { | |
2207 | case DVBV3_QPSK: | |
9474c5e6 | 2208 | info->type = FE_QPSK; |
5bfaadde MCC |
2209 | break; |
2210 | case DVBV3_ATSC: | |
9474c5e6 | 2211 | info->type = FE_ATSC; |
5bfaadde MCC |
2212 | break; |
2213 | case DVBV3_QAM: | |
9474c5e6 | 2214 | info->type = FE_QAM; |
5bfaadde MCC |
2215 | break; |
2216 | case DVBV3_OFDM: | |
9474c5e6 | 2217 | info->type = FE_OFDM; |
5bfaadde MCC |
2218 | break; |
2219 | default: | |
36bdbc3f AP |
2220 | dev_err(fe->dvb->device, |
2221 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
2222 | __func__, c->delivery_system); | |
5bfaadde MCC |
2223 | fe->ops.info.type = FE_OFDM; |
2224 | } | |
36bdbc3f AP |
2225 | dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n", |
2226 | __func__, c->delivery_system, fe->ops.info.type); | |
5bfaadde | 2227 | |
c9d57de6 MP |
2228 | /* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */ |
2229 | if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) | |
2230 | info->caps |= FE_CAN_INVERSION_AUTO; | |
1da177e4 LT |
2231 | err = 0; |
2232 | break; | |
2233 | } | |
2234 | ||
6757ccc5 | 2235 | case FE_READ_STATUS: { |
0df289a2 | 2236 | enum fe_status *status = parg; |
6757ccc5 | 2237 | |
25985edc | 2238 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2239 | * that user get signal state from previous tuning */ |
01886255 JG |
2240 | if (fepriv->state == FESTATE_RETUNE || |
2241 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2242 | err=0; |
2243 | *status = 0; | |
2244 | break; | |
2245 | } | |
2246 | ||
dea74869 PB |
2247 | if (fe->ops.read_status) |
2248 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2249 | break; |
6757ccc5 | 2250 | } |
48caa6f1 | 2251 | |
1da177e4 | 2252 | case FE_READ_BER: |
48caa6f1 AP |
2253 | if (fe->ops.read_ber) { |
2254 | if (fepriv->thread) | |
2255 | err = fe->ops.read_ber(fe, (__u32 *) parg); | |
2256 | else | |
2257 | err = -EAGAIN; | |
2258 | } | |
1da177e4 LT |
2259 | break; |
2260 | ||
2261 | case FE_READ_SIGNAL_STRENGTH: | |
48caa6f1 AP |
2262 | if (fe->ops.read_signal_strength) { |
2263 | if (fepriv->thread) | |
2264 | err = fe->ops.read_signal_strength(fe, (__u16 *) parg); | |
2265 | else | |
2266 | err = -EAGAIN; | |
2267 | } | |
1da177e4 LT |
2268 | break; |
2269 | ||
2270 | case FE_READ_SNR: | |
48caa6f1 AP |
2271 | if (fe->ops.read_snr) { |
2272 | if (fepriv->thread) | |
2273 | err = fe->ops.read_snr(fe, (__u16 *) parg); | |
2274 | else | |
2275 | err = -EAGAIN; | |
2276 | } | |
1da177e4 LT |
2277 | break; |
2278 | ||
2279 | case FE_READ_UNCORRECTED_BLOCKS: | |
48caa6f1 AP |
2280 | if (fe->ops.read_ucblocks) { |
2281 | if (fepriv->thread) | |
2282 | err = fe->ops.read_ucblocks(fe, (__u32 *) parg); | |
2283 | else | |
2284 | err = -EAGAIN; | |
2285 | } | |
1da177e4 LT |
2286 | break; |
2287 | ||
1da177e4 | 2288 | case FE_DISEQC_RESET_OVERLOAD: |
dea74869 PB |
2289 | if (fe->ops.diseqc_reset_overload) { |
2290 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2291 | fepriv->state = FESTATE_DISEQC; |
2292 | fepriv->status = 0; | |
2293 | } | |
2294 | break; | |
2295 | ||
2296 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 | 2297 | if (fe->ops.diseqc_send_master_cmd) { |
8d7e5063 DC |
2298 | struct dvb_diseqc_master_cmd *cmd = parg; |
2299 | ||
2300 | if (cmd->msg_len > sizeof(cmd->msg)) { | |
2301 | err = -EINVAL; | |
2302 | break; | |
2303 | } | |
2304 | err = fe->ops.diseqc_send_master_cmd(fe, cmd); | |
1da177e4 LT |
2305 | fepriv->state = FESTATE_DISEQC; |
2306 | fepriv->status = 0; | |
2307 | } | |
2308 | break; | |
2309 | ||
2310 | case FE_DISEQC_SEND_BURST: | |
dea74869 | 2311 | if (fe->ops.diseqc_send_burst) { |
0df289a2 MCC |
2312 | err = fe->ops.diseqc_send_burst(fe, |
2313 | (enum fe_sec_mini_cmd)parg); | |
1da177e4 LT |
2314 | fepriv->state = FESTATE_DISEQC; |
2315 | fepriv->status = 0; | |
2316 | } | |
2317 | break; | |
2318 | ||
2319 | case FE_SET_TONE: | |
dea74869 | 2320 | if (fe->ops.set_tone) { |
0df289a2 MCC |
2321 | err = fe->ops.set_tone(fe, |
2322 | (enum fe_sec_tone_mode)parg); | |
2323 | fepriv->tone = (enum fe_sec_tone_mode)parg; | |
1da177e4 LT |
2324 | fepriv->state = FESTATE_DISEQC; |
2325 | fepriv->status = 0; | |
2326 | } | |
2327 | break; | |
2328 | ||
2329 | case FE_SET_VOLTAGE: | |
dea74869 | 2330 | if (fe->ops.set_voltage) { |
0df289a2 MCC |
2331 | err = fe->ops.set_voltage(fe, |
2332 | (enum fe_sec_voltage)parg); | |
2333 | fepriv->voltage = (enum fe_sec_voltage)parg; | |
1da177e4 LT |
2334 | fepriv->state = FESTATE_DISEQC; |
2335 | fepriv->status = 0; | |
2336 | } | |
2337 | break; | |
2338 | ||
2339 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 | 2340 | if (fe->ops.dishnetwork_send_legacy_command) { |
0df289a2 MCC |
2341 | err = fe->ops.dishnetwork_send_legacy_command(fe, |
2342 | (unsigned long)parg); | |
1da177e4 LT |
2343 | fepriv->state = FESTATE_DISEQC; |
2344 | fepriv->status = 0; | |
dea74869 | 2345 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2346 | /* |
2347 | * NOTE: This is a fallback condition. Some frontends | |
2348 | * (stv0299 for instance) take longer than 8msec to | |
2349 | * respond to a set_voltage command. Those switches | |
2350 | * need custom routines to switch properly. For all | |
2030c032 | 2351 | * other frontends, the following should work ok. |
83b75b04 N |
2352 | * Dish network legacy switches (as used by Dish500) |
2353 | * are controlled by sending 9-bit command words | |
2354 | * spaced 8msec apart. | |
25985edc | 2355 | * the actual command word is switch/port dependent |
83b75b04 N |
2356 | * so it is up to the userspace application to send |
2357 | * the right command. | |
2358 | * The command must always start with a '0' after | |
2359 | * initialization, so parg is 8 bits and does not | |
2360 | * include the initialization or start bit | |
2361 | */ | |
c6eb8eaf | 2362 | unsigned long swcmd = ((unsigned long) parg) << 1; |
9056a23b TR |
2363 | ktime_t nexttime; |
2364 | ktime_t tv[10]; | |
83b75b04 N |
2365 | int i; |
2366 | u8 last = 1; | |
2367 | if (dvb_frontend_debug) | |
b3ad24d2 MCC |
2368 | dprintk("%s switch command: 0x%04lx\n", |
2369 | __func__, swcmd); | |
6b3f9998 | 2370 | nexttime = ktime_get_boottime(); |
83b75b04 | 2371 | if (dvb_frontend_debug) |
b9b1b3a8 | 2372 | tv[0] = nexttime; |
83b75b04 N |
2373 | /* before sending a command, initialize by sending |
2374 | * a 32ms 18V to the switch | |
2375 | */ | |
dea74869 | 2376 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2377 | dvb_frontend_sleep_until(&nexttime, 32000); |
2378 | ||
2379 | for (i = 0; i < 9; i++) { | |
2380 | if (dvb_frontend_debug) | |
6b3f9998 | 2381 | tv[i+1] = ktime_get_boottime(); |
c6eb8eaf | 2382 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2383 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2384 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2385 | last = (last) ? 0 : 1; |
2386 | } | |
c6eb8eaf | 2387 | swcmd = swcmd >> 1; |
83b75b04 N |
2388 | if (i != 8) |
2389 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2390 | } | |
2391 | if (dvb_frontend_debug) { | |
b3ad24d2 | 2392 | dprintk("%s(%d): switch delay (should be 32k followed by all 8k)\n", |
46b4f7c1 | 2393 | __func__, fe->dvb->num); |
83b75b04 | 2394 | for (i = 1; i < 10; i++) |
b3ad24d2 | 2395 | pr_info("%d: %d\n", i, |
9056a23b | 2396 | (int) ktime_us_delta(tv[i], tv[i-1])); |
83b75b04 N |
2397 | } |
2398 | err = 0; | |
2399 | fepriv->state = FESTATE_DISEQC; | |
2400 | fepriv->status = 0; | |
1da177e4 LT |
2401 | } |
2402 | break; | |
2403 | ||
2404 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2405 | if (fe->ops.diseqc_recv_slave_reply) |
2406 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2407 | break; |
2408 | ||
2409 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2410 | if (fe->ops.enable_high_lnb_voltage) |
2411 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2412 | break; |
2413 | ||
9682cea2 | 2414 | case FE_SET_FRONTEND: |
be431b16 | 2415 | err = dvbv3_set_delivery_system(fe); |
04be0f76 MCC |
2416 | if (err) |
2417 | break; | |
2418 | ||
e399ce77 | 2419 | err = dtv_property_cache_sync(fe, c, parg); |
5bfaadde MCC |
2420 | if (err) |
2421 | break; | |
2422 | err = dtv_set_frontend(fe); | |
1da177e4 | 2423 | break; |
1da177e4 LT |
2424 | case FE_GET_EVENT: |
2425 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2426 | break; | |
2427 | ||
bb31d238 MCC |
2428 | case FE_GET_FRONTEND: { |
2429 | struct dtv_frontend_properties getp = fe->dtv_property_cache; | |
36cb557a | 2430 | |
bb31d238 MCC |
2431 | /* |
2432 | * Let's use our own copy of property cache, in order to | |
2433 | * avoid mangling with DTV zigzag logic, as drivers might | |
2434 | * return crap, if they don't check if the data is available | |
2435 | * before updating the properties cache. | |
2436 | */ | |
2437 | err = dtv_get_frontend(fe, &getp, parg); | |
2438 | break; | |
2439 | } | |
36cb557a | 2440 | case FE_SET_FRONTEND_TUNE_MODE: |
e18828e4 | 2441 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2442 | err = 0; |
36cb557a | 2443 | break; |
c2c1b415 | 2444 | } |
1da177e4 | 2445 | |
1da177e4 LT |
2446 | return err; |
2447 | } | |
2448 | ||
6b73eeaf | 2449 | |
1da177e4 LT |
2450 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2451 | { | |
2452 | struct dvb_device *dvbdev = file->private_data; | |
2453 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2454 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2455 | |
36bdbc3f | 2456 | dev_dbg_ratelimited(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
2457 | |
2458 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2459 | ||
2460 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2461 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2462 | ||
2463 | return 0; | |
2464 | } | |
2465 | ||
2466 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2467 | { | |
2468 | struct dvb_device *dvbdev = file->private_data; | |
2469 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2470 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2471 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2472 | int ret; |
2473 | ||
36bdbc3f | 2474 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
18ed2860 | 2475 | if (fe->exit == DVB_FE_DEVICE_REMOVED) |
e36309f5 | 2476 | return -ENODEV; |
1da177e4 | 2477 | |
59b1842d DB |
2478 | if (adapter->mfe_shared) { |
2479 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2480 | |
2481 | if (adapter->mfe_dvbdev == NULL) | |
2482 | adapter->mfe_dvbdev = dvbdev; | |
2483 | ||
2484 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2485 | struct dvb_device | |
2486 | *mfedev = adapter->mfe_dvbdev; | |
2487 | struct dvb_frontend | |
2488 | *mfe = mfedev->priv; | |
2489 | struct dvb_frontend_private | |
2490 | *mfepriv = mfe->frontend_priv; | |
2491 | int mferetry = (dvb_mfe_wait_time << 1); | |
2492 | ||
2493 | mutex_unlock (&adapter->mfe_lock); | |
2494 | while (mferetry-- && (mfedev->users != -1 || | |
2495 | mfepriv->thread != NULL)) { | |
2496 | if(msleep_interruptible(500)) { | |
2497 | if(signal_pending(current)) | |
2498 | return -EINTR; | |
59b1842d | 2499 | } |
6594690b DB |
2500 | } |
2501 | ||
2502 | mutex_lock (&adapter->mfe_lock); | |
2503 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2504 | mfedev = adapter->mfe_dvbdev; |
2505 | mfe = mfedev->priv; | |
2506 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2507 | if (mfedev->users != -1 || |
2508 | mfepriv->thread != NULL) { | |
2509 | mutex_unlock (&adapter->mfe_lock); | |
2510 | return -EBUSY; | |
59b1842d | 2511 | } |
6594690b | 2512 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2513 | } |
59b1842d DB |
2514 | } |
2515 | } | |
2516 | ||
48136e1e OE |
2517 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2518 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2519 | goto err0; |
2d196931 DH |
2520 | |
2521 | /* If we took control of the bus, we need to force | |
2522 | reinitialization. This is because many ts_bus_ctrl() | |
2523 | functions strobe the RESET pin on the demod, and if the | |
2524 | frontend thread already exists then the dvb_init() routine | |
2525 | won't get called (which is what usually does initial | |
2526 | register configuration). */ | |
2527 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2528 | } |
2529 | ||
48136e1e OE |
2530 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2531 | goto err1; | |
04c56d0e | 2532 | |
48136e1e | 2533 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2534 | /* normal tune mode when opened R/W */ |
2535 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2536 | fepriv->tone = -1; | |
2537 | fepriv->voltage = -1; | |
2538 | ||
68ff5767 SK |
2539 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
2540 | if (fe->dvb->mdev && fe->dvb->mdev->enable_source) { | |
2541 | ret = fe->dvb->mdev->enable_source(dvbdev->entity, | |
2542 | &fepriv->pipe); | |
2543 | if (ret) { | |
2544 | dev_err(fe->dvb->device, | |
2545 | "Tuner is busy. Error %d\n", ret); | |
2546 | goto err2; | |
2547 | } | |
2548 | } | |
2549 | #endif | |
1da177e4 LT |
2550 | ret = dvb_frontend_start (fe); |
2551 | if (ret) | |
68ff5767 | 2552 | goto err3; |
1da177e4 LT |
2553 | |
2554 | /* empty event queue */ | |
2555 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2556 | } | |
2557 | ||
fe35637b MK |
2558 | dvb_frontend_private_get(fepriv); |
2559 | ||
59b1842d DB |
2560 | if (adapter->mfe_shared) |
2561 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2562 | return ret; |
48136e1e | 2563 | |
68ff5767 SK |
2564 | err3: |
2565 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB | |
2566 | if (fe->dvb->mdev && fe->dvb->mdev->disable_source) | |
2567 | fe->dvb->mdev->disable_source(dvbdev->entity); | |
48136e1e | 2568 | err2: |
68ff5767 | 2569 | #endif |
48136e1e OE |
2570 | dvb_generic_release(inode, file); |
2571 | err1: | |
2572 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2573 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2574 | err0: |
2575 | if (adapter->mfe_shared) | |
2576 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2577 | return ret; |
1da177e4 LT |
2578 | } |
2579 | ||
2580 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2581 | { | |
2582 | struct dvb_device *dvbdev = file->private_data; | |
2583 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2584 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2585 | int ret; |
1da177e4 | 2586 | |
36bdbc3f | 2587 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2588 | |
b9d5efcc | 2589 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2590 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2591 | mb(); |
2592 | } | |
1da177e4 | 2593 | |
ca5be9cd MR |
2594 | ret = dvb_generic_release (inode, file); |
2595 | ||
48136e1e | 2596 | if (dvbdev->users == -1) { |
b9d5efcc | 2597 | wake_up(&fepriv->wait_queue); |
68ff5767 SK |
2598 | #ifdef CONFIG_MEDIA_CONTROLLER_DVB |
2599 | if (fe->dvb->mdev && fe->dvb->mdev->disable_source) | |
2600 | fe->dvb->mdev->disable_source(dvbdev->entity); | |
2601 | #endif | |
18ed2860 | 2602 | if (fe->exit != DVB_FE_NO_EXIT) |
48136e1e | 2603 | wake_up(&dvbdev->wait_queue); |
48136e1e OE |
2604 | if (fe->ops.ts_bus_ctrl) |
2605 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2606 | } |
48136e1e | 2607 | |
fe35637b MK |
2608 | dvb_frontend_private_put(fepriv); |
2609 | ||
ca5be9cd | 2610 | return ret; |
1da177e4 LT |
2611 | } |
2612 | ||
784e29d2 | 2613 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2614 | .owner = THIS_MODULE, |
16ef8def | 2615 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2616 | .poll = dvb_frontend_poll, |
2617 | .open = dvb_frontend_open, | |
6038f373 AB |
2618 | .release = dvb_frontend_release, |
2619 | .llseek = noop_llseek, | |
1da177e4 LT |
2620 | }; |
2621 | ||
06bae122 AP |
2622 | int dvb_frontend_suspend(struct dvb_frontend *fe) |
2623 | { | |
2624 | int ret = 0; | |
2625 | ||
2626 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2627 | fe->id); | |
2628 | ||
59d7889a MCC |
2629 | if (fe->ops.tuner_ops.suspend) |
2630 | ret = fe->ops.tuner_ops.suspend(fe); | |
2631 | else if (fe->ops.tuner_ops.sleep) | |
06bae122 AP |
2632 | ret = fe->ops.tuner_ops.sleep(fe); |
2633 | ||
2634 | if (fe->ops.sleep) | |
2635 | ret = fe->ops.sleep(fe); | |
2636 | ||
2637 | return ret; | |
2638 | } | |
2639 | EXPORT_SYMBOL(dvb_frontend_suspend); | |
2640 | ||
2641 | int dvb_frontend_resume(struct dvb_frontend *fe) | |
2642 | { | |
2643 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
2644 | int ret = 0; | |
2645 | ||
2646 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2647 | fe->id); | |
2648 | ||
87cd0fa8 | 2649 | fe->exit = DVB_FE_DEVICE_RESUME; |
06bae122 AP |
2650 | if (fe->ops.init) |
2651 | ret = fe->ops.init(fe); | |
2652 | ||
59d7889a MCC |
2653 | if (fe->ops.tuner_ops.resume) |
2654 | ret = fe->ops.tuner_ops.resume(fe); | |
2655 | else if (fe->ops.tuner_ops.init) | |
06bae122 AP |
2656 | ret = fe->ops.tuner_ops.init(fe); |
2657 | ||
3663b31b MCC |
2658 | if (fe->ops.set_tone && fepriv->tone != -1) |
2659 | fe->ops.set_tone(fe, fepriv->tone); | |
2660 | if (fe->ops.set_voltage && fepriv->voltage != -1) | |
2661 | fe->ops.set_voltage(fe, fepriv->voltage); | |
2662 | ||
87cd0fa8 | 2663 | fe->exit = DVB_FE_NO_EXIT; |
06bae122 AP |
2664 | fepriv->state = FESTATE_RETUNE; |
2665 | dvb_frontend_wakeup(fe); | |
2666 | ||
2667 | return ret; | |
2668 | } | |
2669 | EXPORT_SYMBOL(dvb_frontend_resume); | |
2670 | ||
1da177e4 LT |
2671 | int dvb_register_frontend(struct dvb_adapter* dvb, |
2672 | struct dvb_frontend* fe) | |
2673 | { | |
2674 | struct dvb_frontend_private *fepriv; | |
c1b31b1e | 2675 | const struct dvb_device dvbdev_template = { |
1da177e4 LT |
2676 | .users = ~0, |
2677 | .writers = 1, | |
2678 | .readers = (~0)-1, | |
2679 | .fops = &dvb_frontend_fops, | |
c1b31b1e MCC |
2680 | #if defined(CONFIG_MEDIA_CONTROLLER_DVB) |
2681 | .name = fe->ops.info.name, | |
2682 | #endif | |
1da177e4 LT |
2683 | .kernel_ioctl = dvb_frontend_ioctl |
2684 | }; | |
2685 | ||
36bdbc3f | 2686 | dev_dbg(dvb->device, "%s:\n", __func__); |
1da177e4 | 2687 | |
3593cab5 | 2688 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2689 | return -ERESTARTSYS; |
2690 | ||
7408187d | 2691 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2692 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2693 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2694 | return -ENOMEM; |
2695 | } | |
0c53c70f | 2696 | fepriv = fe->frontend_priv; |
1da177e4 | 2697 | |
fe35637b MK |
2698 | kref_init(&fepriv->refcount); |
2699 | ||
a0a4714c | 2700 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2701 | init_waitqueue_head (&fepriv->wait_queue); |
2702 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2703 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2704 | fe->dvb = dvb; |
2705 | fepriv->inversion = INVERSION_OFF; | |
2706 | ||
36bdbc3f AP |
2707 | dev_info(fe->dvb->device, |
2708 | "DVB: registering adapter %i frontend %i (%s)...\n", | |
2709 | fe->dvb->num, fe->id, fe->ops.info.name); | |
1da177e4 LT |
2710 | |
2711 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
df2f94e5 | 2712 | fe, DVB_DEVICE_FRONTEND, 0); |
1da177e4 | 2713 | |
5bfaadde MCC |
2714 | /* |
2715 | * Initialize the cache to the proper values according with the | |
2716 | * first supported delivery system (ops->delsys[0]) | |
2717 | */ | |
240ab508 | 2718 | |
be431b16 | 2719 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; |
5bfaadde MCC |
2720 | dvb_frontend_clear_cache(fe); |
2721 | ||
3593cab5 | 2722 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2723 | return 0; |
2724 | } | |
2725 | EXPORT_SYMBOL(dvb_register_frontend); | |
2726 | ||
2727 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2728 | { | |
0c53c70f | 2729 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
36bdbc3f | 2730 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2731 | |
57861b43 | 2732 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2733 | dvb_frontend_stop (fe); |
1da177e4 | 2734 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2735 | |
1da177e4 | 2736 | /* fe is invalid now */ |
3593cab5 | 2737 | mutex_unlock(&frontend_mutex); |
fe35637b | 2738 | dvb_frontend_private_put(fepriv); |
1da177e4 LT |
2739 | return 0; |
2740 | } | |
2741 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2742 | |
967d8e8f MK |
2743 | static void dvb_frontend_invoke_release(struct dvb_frontend *fe, |
2744 | void (*release)(struct dvb_frontend *fe)) | |
f52a838b | 2745 | { |
967d8e8f MK |
2746 | if (release) { |
2747 | release(fe); | |
2748 | #ifdef CONFIG_MEDIA_ATTACH | |
2749 | dvb_detach(release); | |
2750 | #endif | |
f52a838b AQ |
2751 | } |
2752 | } | |
967d8e8f | 2753 | |
f52a838b AQ |
2754 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2755 | { | |
967d8e8f MK |
2756 | dvb_frontend_invoke_release(fe, fe->ops.release_sec); |
2757 | dvb_frontend_invoke_release(fe, fe->ops.tuner_ops.release); | |
2758 | dvb_frontend_invoke_release(fe, fe->ops.analog_ops.release); | |
d812b3ca | 2759 | dvb_frontend_invoke_release(fe, fe->ops.detach); |
967d8e8f | 2760 | dvb_frontend_invoke_release(fe, fe->ops.release); |
f52a838b | 2761 | } |
f52a838b | 2762 | EXPORT_SYMBOL(dvb_frontend_detach); |