Commit | Line | Data |
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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 | ||
1da177e4 LT |
31 | #include <linux/string.h> |
32 | #include <linux/kernel.h> | |
33 | #include <linux/sched.h> | |
34 | #include <linux/wait.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/poll.h> | |
4c4cb1b1 | 37 | #include <linux/semaphore.h> |
1da177e4 | 38 | #include <linux/module.h> |
1da177e4 | 39 | #include <linux/list.h> |
7dfb7103 | 40 | #include <linux/freezer.h> |
cc89c229 | 41 | #include <linux/jiffies.h> |
8eec1429 | 42 | #include <linux/kthread.h> |
1da177e4 | 43 | #include <asm/processor.h> |
1da177e4 LT |
44 | |
45 | #include "dvb_frontend.h" | |
46 | #include "dvbdev.h" | |
eacf8d8d | 47 | #include <linux/dvb/version.h> |
1da177e4 LT |
48 | |
49 | static int dvb_frontend_debug; | |
849be2cd | 50 | static int dvb_shutdown_timeout; |
1da177e4 LT |
51 | static int dvb_force_auto_inversion; |
52 | static int dvb_override_tune_delay; | |
53 | static int dvb_powerdown_on_sleep = 1; | |
59b1842d | 54 | static int dvb_mfe_wait_time = 5; |
1da177e4 LT |
55 | |
56 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); | |
f4f009a7 | 57 | MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off)."); |
6baad3f0 | 58 | module_param(dvb_shutdown_timeout, int, 0644); |
1da177e4 | 59 | MODULE_PARM_DESC(dvb_shutdown_timeout, "wait <shutdown_timeout> seconds after close() before suspending hardware"); |
6baad3f0 | 60 | module_param(dvb_force_auto_inversion, int, 0644); |
1da177e4 | 61 | MODULE_PARM_DESC(dvb_force_auto_inversion, "0: normal (default), 1: INVERSION_AUTO forced always"); |
6baad3f0 | 62 | module_param(dvb_override_tune_delay, int, 0644); |
1da177e4 | 63 | MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt"); |
6baad3f0 | 64 | module_param(dvb_powerdown_on_sleep, int, 0644); |
a8558577 | 65 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
59b1842d DB |
66 | module_param(dvb_mfe_wait_time, int, 0644); |
67 | 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 | 68 | |
1da177e4 LT |
69 | #define FESTATE_IDLE 1 |
70 | #define FESTATE_RETUNE 2 | |
71 | #define FESTATE_TUNING_FAST 4 | |
72 | #define FESTATE_TUNING_SLOW 8 | |
73 | #define FESTATE_TUNED 16 | |
74 | #define FESTATE_ZIGZAG_FAST 32 | |
75 | #define FESTATE_ZIGZAG_SLOW 64 | |
76 | #define FESTATE_DISEQC 128 | |
01886255 | 77 | #define FESTATE_ERROR 256 |
1da177e4 LT |
78 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
79 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) | |
80 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) | |
81 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) | |
0249ef16 MA |
82 | |
83 | #define FE_ALGO_HW 1 | |
1da177e4 LT |
84 | /* |
85 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. | |
86 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. | |
87 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. | |
88 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. | |
89 | * FESTATE_TUNED. The frontend has successfully locked on. | |
90 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. | |
91 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. | |
92 | * FESTATE_DISEQC. A DISEQC command has just been issued. | |
93 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. | |
94 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. | |
95 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. | |
96 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. | |
97 | */ | |
98 | ||
3593cab5 | 99 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
100 | |
101 | struct dvb_frontend_private { | |
102 | ||
36cb557a | 103 | /* thread/frontend values */ |
1da177e4 | 104 | struct dvb_device *dvbdev; |
a5959dbe | 105 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
106 | struct dvb_fe_events events; |
107 | struct semaphore sem; | |
108 | struct list_head list_head; | |
109 | wait_queue_head_t wait_queue; | |
8eec1429 | 110 | struct task_struct *thread; |
1da177e4 | 111 | unsigned long release_jiffies; |
36cb557a | 112 | unsigned int wakeup; |
1da177e4 | 113 | fe_status_t status; |
400b7083 | 114 | unsigned long tune_mode_flags; |
36cb557a | 115 | unsigned int delay; |
86f40cc3 | 116 | unsigned int reinitialise; |
64454016 AQ |
117 | int tone; |
118 | int voltage; | |
36cb557a AQ |
119 | |
120 | /* swzigzag values */ | |
121 | unsigned int state; | |
122 | unsigned int bending; | |
123 | int lnb_drift; | |
124 | unsigned int inversion; | |
125 | unsigned int auto_step; | |
126 | unsigned int auto_sub_step; | |
127 | unsigned int started_auto_step; | |
128 | unsigned int min_delay; | |
129 | unsigned int max_drift; | |
130 | unsigned int step_size; | |
131 | int quality; | |
132 | unsigned int check_wrapped; | |
c59e7870 | 133 | enum dvbfe_search algo_status; |
1da177e4 LT |
134 | }; |
135 | ||
86f40cc3 | 136 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 137 | static int dtv_get_frontend(struct dvb_frontend *fe, |
a689e365 | 138 | struct dvb_frontend_parameters *p_out); |
556a0442 CR |
139 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
140 | struct dvb_frontend_parameters *p); | |
a689e365 MCC |
141 | |
142 | static bool has_get_frontend(struct dvb_frontend *fe) | |
143 | { | |
c065f5b4 | 144 | return fe->ops.get_frontend != NULL; |
a689e365 | 145 | } |
1da177e4 | 146 | |
5bfaadde MCC |
147 | /* |
148 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
149 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
150 | * otherwise, a DVBv3 call will fail. | |
151 | */ | |
152 | enum dvbv3_emulation_type { | |
153 | DVBV3_UNKNOWN, | |
154 | DVBV3_QPSK, | |
155 | DVBV3_QAM, | |
156 | DVBV3_OFDM, | |
157 | DVBV3_ATSC, | |
158 | }; | |
159 | ||
160 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
161 | { | |
162 | switch (delivery_system) { | |
163 | case SYS_DVBC_ANNEX_A: | |
164 | case SYS_DVBC_ANNEX_C: | |
165 | return DVBV3_QAM; | |
166 | case SYS_DVBS: | |
167 | case SYS_DVBS2: | |
168 | case SYS_TURBO: | |
169 | case SYS_ISDBS: | |
170 | case SYS_DSS: | |
171 | return DVBV3_QPSK; | |
172 | case SYS_DVBT: | |
173 | case SYS_DVBT2: | |
174 | case SYS_ISDBT: | |
224b6642 | 175 | case SYS_DTMB: |
5bfaadde MCC |
176 | return DVBV3_OFDM; |
177 | case SYS_ATSC: | |
ca689488 | 178 | case SYS_ATSCMH: |
5bfaadde MCC |
179 | case SYS_DVBC_ANNEX_B: |
180 | return DVBV3_ATSC; | |
181 | case SYS_UNDEFINED: | |
182 | case SYS_ISDBC: | |
183 | case SYS_DVBH: | |
184 | case SYS_DAB: | |
5bfaadde MCC |
185 | default: |
186 | /* | |
187 | * Doesn't know how to emulate those types and/or | |
188 | * there's no frontend driver from this type yet | |
189 | * with some emulation code, so, we're not sure yet how | |
190 | * to handle them, or they're not compatible with a DVBv3 call. | |
191 | */ | |
192 | return DVBV3_UNKNOWN; | |
193 | } | |
194 | } | |
195 | ||
1da177e4 LT |
196 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
197 | { | |
0c53c70f | 198 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
199 | struct dvb_fe_events *events = &fepriv->events; |
200 | struct dvb_frontend_event *e; | |
201 | int wp; | |
202 | ||
36bdbc3f | 203 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 204 | |
a689e365 | 205 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
7c61d80a | 206 | dtv_get_frontend(fe, &fepriv->parameters_out); |
1da177e4 | 207 | |
77b1e2fb | 208 | mutex_lock(&events->mtx); |
1da177e4 | 209 | |
77b1e2fb | 210 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
211 | if (wp == events->eventr) { |
212 | events->overflow = 1; | |
213 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
214 | } | |
215 | ||
216 | e = &events->events[events->eventw]; | |
77b1e2fb | 217 | e->status = status; |
a5959dbe | 218 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
219 | |
220 | events->eventw = wp; | |
221 | ||
03b76123 | 222 | mutex_unlock(&events->mtx); |
1da177e4 | 223 | |
1da177e4 LT |
224 | wake_up_interruptible (&events->wait_queue); |
225 | } | |
226 | ||
227 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
228 | struct dvb_frontend_event *event, int flags) | |
229 | { | |
0c53c70f | 230 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
231 | struct dvb_fe_events *events = &fepriv->events; |
232 | ||
36bdbc3f | 233 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
234 | |
235 | if (events->overflow) { | |
236 | events->overflow = 0; | |
237 | return -EOVERFLOW; | |
238 | } | |
239 | ||
240 | if (events->eventw == events->eventr) { | |
241 | int ret; | |
242 | ||
243 | if (flags & O_NONBLOCK) | |
244 | return -EWOULDBLOCK; | |
245 | ||
246 | up(&fepriv->sem); | |
247 | ||
248 | ret = wait_event_interruptible (events->wait_queue, | |
249 | events->eventw != events->eventr); | |
250 | ||
251 | if (down_interruptible (&fepriv->sem)) | |
252 | return -ERESTARTSYS; | |
253 | ||
254 | if (ret < 0) | |
255 | return ret; | |
256 | } | |
257 | ||
77b1e2fb AO |
258 | mutex_lock(&events->mtx); |
259 | *event = events->events[events->eventr]; | |
1da177e4 | 260 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 261 | mutex_unlock(&events->mtx); |
1da177e4 LT |
262 | |
263 | return 0; | |
264 | } | |
265 | ||
20640bea AO |
266 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
267 | { | |
268 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
269 | struct dvb_fe_events *events = &fepriv->events; | |
270 | ||
271 | mutex_lock(&events->mtx); | |
272 | events->eventr = events->eventw; | |
273 | mutex_unlock(&events->mtx); | |
274 | } | |
275 | ||
1da177e4 LT |
276 | static void dvb_frontend_init(struct dvb_frontend *fe) |
277 | { | |
36bdbc3f AP |
278 | dev_dbg(fe->dvb->device, |
279 | "%s: initialising adapter %i frontend %i (%s)...\n", | |
280 | __func__, fe->dvb->num, fe->id, fe->ops.info.name); | |
dea74869 PB |
281 | |
282 | if (fe->ops.init) | |
283 | fe->ops.init(fe); | |
284 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
285 | if (fe->ops.i2c_gate_ctrl) |
286 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
287 | fe->ops.tuner_ops.init(fe); |
288 | if (fe->ops.i2c_gate_ctrl) | |
289 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 290 | } |
1da177e4 LT |
291 | } |
292 | ||
86f40cc3 AQ |
293 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
294 | { | |
295 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
296 | ||
297 | fepriv->reinitialise = 1; | |
298 | dvb_frontend_wakeup(fe); | |
299 | } | |
300 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
301 | ||
36cb557a | 302 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 303 | { |
36cb557a | 304 | int q2; |
36bdbc3f | 305 | struct dvb_frontend *fe = fepriv->dvbdev->priv; |
1da177e4 | 306 | |
36bdbc3f | 307 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 308 | |
36cb557a AQ |
309 | if (locked) |
310 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
311 | else | |
312 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 313 | |
36cb557a AQ |
314 | q2 = fepriv->quality - 128; |
315 | q2 *= q2; | |
1da177e4 | 316 | |
36cb557a | 317 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
318 | } |
319 | ||
320 | /** | |
321 | * Performs automatic twiddling of frontend parameters. | |
322 | * | |
323 | * @param fe The frontend concerned. | |
324 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
325 | * @returns Number of complete iterations that have been performed. | |
326 | */ | |
36cb557a | 327 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
328 | { |
329 | int autoinversion; | |
330 | int ready = 0; | |
01886255 | 331 | int fe_set_err = 0; |
0c53c70f | 332 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
333 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
334 | int original_inversion = c->inversion; | |
335 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
336 | |
337 | /* are we using autoinversion? */ | |
dea74869 | 338 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 339 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
340 | |
341 | /* setup parameters correctly */ | |
342 | while(!ready) { | |
343 | /* calculate the lnb_drift */ | |
344 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
345 | ||
346 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
347 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
348 | fepriv->auto_step = 0; | |
349 | fepriv->auto_sub_step = 0; | |
350 | fepriv->lnb_drift = 0; | |
351 | } | |
352 | ||
353 | /* perform inversion and +/- zigzag */ | |
354 | switch(fepriv->auto_sub_step) { | |
355 | case 0: | |
356 | /* try with the current inversion and current drift setting */ | |
357 | ready = 1; | |
358 | break; | |
359 | ||
360 | case 1: | |
361 | if (!autoinversion) break; | |
362 | ||
363 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
364 | ready = 1; | |
365 | break; | |
366 | ||
367 | case 2: | |
368 | if (fepriv->lnb_drift == 0) break; | |
369 | ||
370 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
371 | ready = 1; | |
372 | break; | |
373 | ||
374 | case 3: | |
375 | if (fepriv->lnb_drift == 0) break; | |
376 | if (!autoinversion) break; | |
377 | ||
378 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
379 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
380 | ready = 1; | |
381 | break; | |
382 | ||
383 | default: | |
384 | fepriv->auto_step++; | |
385 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
386 | break; | |
387 | } | |
388 | ||
389 | if (!ready) fepriv->auto_sub_step++; | |
390 | } | |
391 | ||
392 | /* if this attempt would hit where we started, indicate a complete | |
393 | * iteration has occurred */ | |
394 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
395 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
396 | return 1; | |
397 | } | |
398 | ||
36bdbc3f AP |
399 | dev_dbg(fe->dvb->device, "%s: drift:%i inversion:%i auto_step:%i " \ |
400 | "auto_sub_step:%i started_auto_step:%i\n", | |
401 | __func__, fepriv->lnb_drift, fepriv->inversion, | |
402 | fepriv->auto_step, fepriv->auto_sub_step, | |
403 | fepriv->started_auto_step); | |
1da177e4 LT |
404 | |
405 | /* set the frontend itself */ | |
ac3852c4 | 406 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 407 | if (autoinversion) |
ac3852c4 MCC |
408 | c->inversion = fepriv->inversion; |
409 | tmp = *c; | |
dea74869 | 410 | if (fe->ops.set_frontend) |
bc9cd273 | 411 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 412 | *c = tmp; |
01886255 JG |
413 | if (fe_set_err < 0) { |
414 | fepriv->state = FESTATE_ERROR; | |
415 | return fe_set_err; | |
416 | } | |
1da177e4 | 417 | |
ac3852c4 MCC |
418 | c->frequency = original_frequency; |
419 | c->inversion = original_inversion; | |
1da177e4 LT |
420 | |
421 | fepriv->auto_sub_step++; | |
422 | return 0; | |
423 | } | |
424 | ||
36cb557a AQ |
425 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
426 | { | |
30d9464c | 427 | fe_status_t s = 0; |
01886255 | 428 | int retval = 0; |
36cb557a | 429 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 430 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
431 | |
432 | /* if we've got no parameters, just keep idling */ | |
433 | if (fepriv->state & FESTATE_IDLE) { | |
434 | fepriv->delay = 3*HZ; | |
435 | fepriv->quality = 0; | |
436 | return; | |
437 | } | |
438 | ||
439 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
440 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
441 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 442 | tmp = *c; |
dea74869 | 443 | if (fe->ops.set_frontend) |
bc9cd273 | 444 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 445 | *c = tmp; |
01886255 JG |
446 | if (retval < 0) |
447 | fepriv->state = FESTATE_ERROR; | |
448 | else | |
449 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
450 | } |
451 | fepriv->delay = 3*HZ; | |
452 | fepriv->quality = 0; | |
453 | return; | |
454 | } | |
455 | ||
456 | /* get the frontend status */ | |
457 | if (fepriv->state & FESTATE_RETUNE) { | |
458 | s = 0; | |
459 | } else { | |
dea74869 PB |
460 | if (fe->ops.read_status) |
461 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
462 | if (s != fepriv->status) { |
463 | dvb_frontend_add_event(fe, s); | |
464 | fepriv->status = s; | |
465 | } | |
466 | } | |
467 | ||
468 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
469 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
470 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
471 | fepriv->state = FESTATE_TUNED; | |
472 | ||
473 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 474 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
475 | (c->inversion == INVERSION_AUTO)) { |
476 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
477 | } |
478 | return; | |
479 | } | |
480 | ||
481 | /* if we are tuned already, check we're still locked */ | |
482 | if (fepriv->state & FESTATE_TUNED) { | |
483 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
484 | ||
485 | /* we're tuned, and the lock is still good... */ | |
486 | if (s & FE_HAS_LOCK) { | |
487 | return; | |
488 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
489 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
490 | fepriv->started_auto_step = fepriv->auto_step; | |
491 | fepriv->check_wrapped = 0; | |
492 | } | |
493 | } | |
494 | ||
495 | /* don't actually do anything if we're in the LOSTLOCK state, | |
496 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
497 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 498 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
499 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
500 | return; | |
501 | } | |
502 | ||
503 | /* don't do anything if we're in the DISEQC state, since this | |
504 | * might be someone with a motorized dish controlled by DISEQC. | |
505 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
506 | if (fepriv->state & FESTATE_DISEQC) { | |
507 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
508 | return; | |
509 | } | |
510 | ||
511 | /* if we're in the RETUNE state, set everything up for a brand | |
512 | * new scan, keeping the current inversion setting, as the next | |
513 | * tune is _very_ likely to require the same */ | |
514 | if (fepriv->state & FESTATE_RETUNE) { | |
515 | fepriv->lnb_drift = 0; | |
516 | fepriv->auto_step = 0; | |
517 | fepriv->auto_sub_step = 0; | |
518 | fepriv->started_auto_step = 0; | |
519 | fepriv->check_wrapped = 0; | |
520 | } | |
521 | ||
522 | /* fast zigzag. */ | |
523 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
524 | fepriv->delay = fepriv->min_delay; | |
525 | ||
2030c032 | 526 | /* perform a tune */ |
01886255 JG |
527 | retval = dvb_frontend_swzigzag_autotune(fe, |
528 | fepriv->check_wrapped); | |
529 | if (retval < 0) { | |
530 | return; | |
531 | } else if (retval) { | |
36cb557a AQ |
532 | /* OK, if we've run out of trials at the fast speed. |
533 | * Drop back to slow for the _next_ attempt */ | |
534 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
535 | fepriv->started_auto_step = fepriv->auto_step; | |
536 | return; | |
537 | } | |
538 | fepriv->check_wrapped = 1; | |
539 | ||
540 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
541 | * This ensures we cannot return from an | |
542 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
543 | * occurs */ | |
544 | if (fepriv->state & FESTATE_RETUNE) { | |
545 | fepriv->state = FESTATE_TUNING_FAST; | |
546 | } | |
547 | } | |
548 | ||
549 | /* slow zigzag */ | |
550 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
551 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
552 | ||
553 | /* Note: don't bother checking for wrapping; we stay in this | |
554 | * state until we get a lock */ | |
555 | dvb_frontend_swzigzag_autotune(fe, 0); | |
556 | } | |
557 | } | |
558 | ||
1da177e4 LT |
559 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
560 | { | |
0c53c70f | 561 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 562 | |
18ed2860 | 563 | if (fe->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
564 | return 1; |
565 | ||
566 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 567 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 568 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
569 | return 1; |
570 | ||
571 | return 0; | |
572 | } | |
573 | ||
574 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
575 | { | |
0c53c70f | 576 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
577 | |
578 | if (fepriv->wakeup) { | |
579 | fepriv->wakeup = 0; | |
580 | return 1; | |
581 | } | |
582 | return dvb_frontend_is_exiting(fe); | |
583 | } | |
584 | ||
585 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
586 | { | |
0c53c70f | 587 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
588 | |
589 | fepriv->wakeup = 1; | |
590 | wake_up_interruptible(&fepriv->wait_queue); | |
591 | } | |
592 | ||
1da177e4 LT |
593 | static int dvb_frontend_thread(void *data) |
594 | { | |
0c53c70f JS |
595 | struct dvb_frontend *fe = data; |
596 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 597 | fe_status_t s; |
c59e7870 MA |
598 | enum dvbfe_algo algo; |
599 | ||
7e072221 | 600 | bool re_tune = false; |
6ae23224 | 601 | bool semheld = false; |
1da177e4 | 602 | |
36bdbc3f | 603 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 604 | |
36cb557a AQ |
605 | fepriv->check_wrapped = 0; |
606 | fepriv->quality = 0; | |
607 | fepriv->delay = 3*HZ; | |
1da177e4 | 608 | fepriv->status = 0; |
1da177e4 | 609 | fepriv->wakeup = 0; |
04c56d0e AQ |
610 | fepriv->reinitialise = 0; |
611 | ||
612 | dvb_frontend_init(fe); | |
1da177e4 | 613 | |
83144186 | 614 | set_freezable(); |
1da177e4 LT |
615 | while (1) { |
616 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 617 | restart: |
94238e9b | 618 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
619 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
620 | || freezing(current), | |
8eec1429 HP |
621 | fepriv->delay); |
622 | ||
623 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 624 | /* got signal or quitting */ |
6ae23224 JL |
625 | if (!down_interruptible(&fepriv->sem)) |
626 | semheld = true; | |
18ed2860 | 627 | fe->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
628 | break; |
629 | } | |
630 | ||
8eec1429 | 631 | if (try_to_freeze()) |
6591691b | 632 | goto restart; |
1da177e4 LT |
633 | |
634 | if (down_interruptible(&fepriv->sem)) | |
635 | break; | |
636 | ||
86f40cc3 AQ |
637 | if (fepriv->reinitialise) { |
638 | dvb_frontend_init(fe); | |
42f4e774 | 639 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 640 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 641 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 642 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
643 | fepriv->reinitialise = 0; |
644 | } | |
645 | ||
36cb557a | 646 | /* do an iteration of the tuning loop */ |
d772bd03 | 647 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
648 | algo = fe->ops.get_frontend_algo(fe); |
649 | switch (algo) { | |
650 | case DVBFE_ALGO_HW: | |
36bdbc3f | 651 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); |
c59e7870 | 652 | |
d772bd03 | 653 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 654 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 655 | re_tune = true; |
d772bd03 | 656 | fepriv->state = FESTATE_TUNED; |
45145b67 SA |
657 | } else { |
658 | re_tune = false; | |
d772bd03 MA |
659 | } |
660 | ||
c59e7870 | 661 | if (fe->ops.tune) |
7e072221 | 662 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 663 | |
2fac9a0f | 664 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
36bdbc3f | 665 | dev_dbg(fe->dvb->device, "%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
666 | dvb_frontend_add_event(fe, s); |
667 | fepriv->status = s; | |
668 | } | |
c59e7870 MA |
669 | break; |
670 | case DVBFE_ALGO_SW: | |
36bdbc3f | 671 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); |
70d90635 | 672 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
673 | break; |
674 | case DVBFE_ALGO_CUSTOM: | |
36bdbc3f | 675 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
c59e7870 | 676 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 677 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTAT_RETUNE\n", __func__); |
c59e7870 MA |
678 | fepriv->state = FESTATE_TUNED; |
679 | } | |
680 | /* Case where we are going to search for a carrier | |
681 | * User asked us to retune again for some reason, possibly | |
682 | * requesting a search with a new set of parameters | |
683 | */ | |
684 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 685 | if (fe->ops.search) { |
41da5320 | 686 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
687 | /* We did do a search as was requested, the flags are |
688 | * now unset as well and has the flags wrt to search. | |
689 | */ | |
7bcbdf38 AJ |
690 | } else { |
691 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
692 | } | |
c59e7870 MA |
693 | } |
694 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 695 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
696 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
697 | fepriv->delay = HZ / 2; | |
698 | } | |
556a0442 | 699 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); |
7bcbdf38 AJ |
700 | fe->ops.read_status(fe, &s); |
701 | if (s != fepriv->status) { | |
702 | dvb_frontend_add_event(fe, s); /* update event list */ | |
703 | fepriv->status = s; | |
704 | if (!(s & FE_HAS_LOCK)) { | |
705 | fepriv->delay = HZ / 10; | |
706 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
707 | } else { | |
708 | fepriv->delay = 60 * HZ; | |
709 | } | |
c59e7870 MA |
710 | } |
711 | break; | |
712 | default: | |
36bdbc3f | 713 | dev_dbg(fe->dvb->device, "%s: UNDEFINED ALGO !\n", __func__); |
c59e7870 MA |
714 | break; |
715 | } | |
716 | } else { | |
4a4edcca | 717 | dvb_frontend_swzigzag(fe); |
c59e7870 | 718 | } |
1da177e4 LT |
719 | } |
720 | ||
608f62d6 OE |
721 | if (dvb_powerdown_on_sleep) { |
722 | if (fe->ops.set_voltage) | |
723 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 724 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
725 | if (fe->ops.i2c_gate_ctrl) |
726 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
727 | fe->ops.tuner_ops.sleep(fe); |
728 | if (fe->ops.i2c_gate_ctrl) | |
729 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 730 | } |
dea74869 PB |
731 | if (fe->ops.sleep) |
732 | fe->ops.sleep(fe); | |
1da177e4 LT |
733 | } |
734 | ||
8eec1429 | 735 | fepriv->thread = NULL; |
e36309f5 | 736 | if (kthread_should_stop()) |
18ed2860 | 737 | fe->exit = DVB_FE_DEVICE_REMOVED; |
e36309f5 | 738 | else |
18ed2860 | 739 | fe->exit = DVB_FE_NO_EXIT; |
1da177e4 LT |
740 | mb(); |
741 | ||
6ae23224 JL |
742 | if (semheld) |
743 | up(&fepriv->sem); | |
1da177e4 LT |
744 | dvb_frontend_wakeup(fe); |
745 | return 0; | |
746 | } | |
747 | ||
748 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
749 | { | |
0c53c70f | 750 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 751 | |
36bdbc3f | 752 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 753 | |
18ed2860 SK |
754 | if (fe->exit != DVB_FE_DEVICE_REMOVED) |
755 | fe->exit = DVB_FE_NORMAL_EXIT; | |
1da177e4 LT |
756 | mb(); |
757 | ||
8eec1429 | 758 | if (!fepriv->thread) |
1da177e4 LT |
759 | return; |
760 | ||
8eec1429 | 761 | kthread_stop(fepriv->thread); |
ca5be9cd | 762 | |
a0a4714c | 763 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
764 | fepriv->state = FESTATE_IDLE; |
765 | ||
766 | /* paranoia check in case a signal arrived */ | |
8eec1429 | 767 | if (fepriv->thread) |
36bdbc3f AP |
768 | dev_warn(fe->dvb->device, |
769 | "dvb_frontend_stop: warning: thread %p won't exit\n", | |
8eec1429 | 770 | fepriv->thread); |
1da177e4 LT |
771 | } |
772 | ||
83b75b04 N |
773 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
774 | { | |
775 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
776 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
777 | curtime.tv_usec - lasttime.tv_usec); | |
778 | } | |
779 | EXPORT_SYMBOL(timeval_usec_diff); | |
780 | ||
781 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
782 | { | |
783 | curtime->tv_usec += add_usec; | |
784 | if (curtime->tv_usec >= 1000000) { | |
785 | curtime->tv_usec -= 1000000; | |
786 | curtime->tv_sec++; | |
787 | } | |
788 | } | |
789 | ||
790 | /* | |
791 | * Sleep until gettimeofday() > waketime + add_usec | |
792 | * This needs to be as precise as possible, but as the delay is | |
793 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
794 | * followed by usleep (normally a busy-wait loop) for the remainder | |
795 | */ | |
796 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
797 | { | |
798 | struct timeval lasttime; | |
799 | s32 delta, newdelta; | |
800 | ||
801 | timeval_usec_add(waketime, add_usec); | |
802 | ||
803 | do_gettimeofday(&lasttime); | |
804 | delta = timeval_usec_diff(lasttime, *waketime); | |
805 | if (delta > 2500) { | |
806 | msleep((delta - 1500) / 1000); | |
807 | do_gettimeofday(&lasttime); | |
808 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
809 | delta = (newdelta > delta) ? 0 : newdelta; | |
810 | } | |
811 | if (delta > 0) | |
812 | udelay(delta); | |
813 | } | |
814 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
815 | ||
1da177e4 LT |
816 | static int dvb_frontend_start(struct dvb_frontend *fe) |
817 | { | |
818 | int ret; | |
0c53c70f | 819 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 820 | struct task_struct *fe_thread; |
1da177e4 | 821 | |
36bdbc3f | 822 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 823 | |
8eec1429 | 824 | if (fepriv->thread) { |
18ed2860 | 825 | if (fe->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
826 | return 0; |
827 | else | |
828 | dvb_frontend_stop (fe); | |
829 | } | |
830 | ||
831 | if (signal_pending(current)) | |
832 | return -EINTR; | |
833 | if (down_interruptible (&fepriv->sem)) | |
834 | return -EINTR; | |
835 | ||
836 | fepriv->state = FESTATE_IDLE; | |
18ed2860 | 837 | fe->exit = DVB_FE_NO_EXIT; |
8eec1429 | 838 | fepriv->thread = NULL; |
1da177e4 LT |
839 | mb(); |
840 | ||
8eec1429 | 841 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 842 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
843 | if (IS_ERR(fe_thread)) { |
844 | ret = PTR_ERR(fe_thread); | |
36bdbc3f AP |
845 | dev_warn(fe->dvb->device, |
846 | "dvb_frontend_start: failed to start kthread (%d)\n", | |
847 | ret); | |
1da177e4 LT |
848 | up(&fepriv->sem); |
849 | return ret; | |
850 | } | |
8eec1429 | 851 | fepriv->thread = fe_thread; |
1da177e4 LT |
852 | return 0; |
853 | } | |
854 | ||
2030c032 | 855 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
856 | u32 *freq_min, u32 *freq_max) |
857 | { | |
858 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
859 | ||
860 | if (fe->ops.info.frequency_max == 0) | |
861 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
862 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
863 | *freq_max = fe->ops.info.frequency_max; | |
864 | else | |
865 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
866 | ||
867 | if (*freq_min == 0 || *freq_max == 0) | |
36bdbc3f AP |
868 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
869 | fe->dvb->num, fe->id); | |
c471b331 OE |
870 | } |
871 | ||
5bfaadde | 872 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 873 | { |
5bfaadde | 874 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
875 | u32 freq_min; |
876 | u32 freq_max; | |
877 | ||
1fab46f0 | 878 | /* range check: frequency */ |
2030c032 | 879 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
880 | if ((freq_min && c->frequency < freq_min) || |
881 | (freq_max && c->frequency > freq_max)) { | |
36bdbc3f AP |
882 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
883 | fe->dvb->num, fe->id, c->frequency, | |
884 | freq_min, freq_max); | |
1fab46f0 OE |
885 | return -EINVAL; |
886 | } | |
887 | ||
888 | /* range check: symbol rate */ | |
5bfaadde MCC |
889 | switch (c->delivery_system) { |
890 | case SYS_DVBS: | |
891 | case SYS_DVBS2: | |
892 | case SYS_TURBO: | |
893 | case SYS_DVBC_ANNEX_A: | |
894 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 895 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 896 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 897 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 898 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
36bdbc3f AP |
899 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
900 | fe->dvb->num, fe->id, c->symbol_rate, | |
901 | fe->ops.info.symbol_rate_min, | |
902 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
903 | return -EINVAL; |
904 | } | |
5bfaadde MCC |
905 | default: |
906 | break; | |
1fab46f0 OE |
907 | } |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
b6e760f3 PB |
912 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
913 | { | |
50727719 | 914 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 | 915 | int i; |
149709f5 | 916 | u32 delsys; |
b6e760f3 | 917 | |
149709f5 | 918 | delsys = c->delivery_system; |
808d24d6 | 919 | memset(c, 0, offsetof(struct dtv_frontend_properties, strength)); |
149709f5 | 920 | c->delivery_system = delsys; |
50727719 AO |
921 | |
922 | c->state = DTV_CLEAR; | |
26c924fe | 923 | |
36bdbc3f AP |
924 | dev_dbg(fe->dvb->device, "%s: Clearing cache for delivery system %d\n", |
925 | __func__, c->delivery_system); | |
26c924fe | 926 | |
50727719 | 927 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 928 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
929 | c->guard_interval = GUARD_INTERVAL_AUTO; |
930 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 931 | c->symbol_rate = 0; |
50727719 AO |
932 | c->code_rate_HP = FEC_AUTO; |
933 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 934 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 935 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 936 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
937 | c->sectone = SEC_TONE_OFF; |
938 | c->pilot = PILOT_AUTO; | |
50727719 | 939 | |
a520ca97 MCC |
940 | c->isdbt_partial_reception = 0; |
941 | c->isdbt_sb_mode = 0; | |
942 | c->isdbt_sb_subchannel = 0; | |
943 | c->isdbt_sb_segment_idx = 0; | |
944 | c->isdbt_sb_segment_count = 0; | |
945 | c->isdbt_layer_enabled = 0; | |
b6e760f3 | 946 | for (i = 0; i < 3; i++) { |
50727719 AO |
947 | c->layer[i].fec = FEC_AUTO; |
948 | c->layer[i].modulation = QAM_AUTO; | |
a520ca97 MCC |
949 | c->layer[i].interleaving = 0; |
950 | c->layer[i].segment_count = 0; | |
b6e760f3 PB |
951 | } |
952 | ||
287cefd0 | 953 | c->stream_id = NO_STREAM_ID_FILTER; |
26c924fe | 954 | |
5bfaadde MCC |
955 | switch (c->delivery_system) { |
956 | case SYS_DVBS: | |
957 | case SYS_DVBS2: | |
958 | case SYS_TURBO: | |
959 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
960 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
961 | break; | |
962 | case SYS_ATSC: | |
963 | c->modulation = VSB_8; | |
964 | break; | |
965 | default: | |
966 | c->modulation = QAM_AUTO; | |
967 | break; | |
968 | } | |
969 | ||
33eebec5 AP |
970 | c->lna = LNA_AUTO; |
971 | ||
b6e760f3 PB |
972 | return 0; |
973 | } | |
974 | ||
975 | #define _DTV_CMD(n, s, b) \ | |
976 | [n] = { \ | |
977 | .name = #n, \ | |
978 | .cmd = n, \ | |
979 | .set = s,\ | |
980 | .buffer = b \ | |
981 | } | |
982 | ||
ec05a642 | 983 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
984 | _DTV_CMD(DTV_TUNE, 1, 0), |
985 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
986 | |
987 | /* Set */ | |
06d3a396 MCC |
988 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
989 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
990 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
991 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
992 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
993 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
994 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
995 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
996 | _DTV_CMD(DTV_TONE, 1, 0), | |
997 | _DTV_CMD(DTV_PILOT, 1, 0), | |
998 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
999 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
1000 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
1001 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
1002 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
1003 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
1004 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
224b6642 | 1005 | _DTV_CMD(DTV_INTERLEAVING, 1, 0), |
b6e760f3 PB |
1006 | |
1007 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
1008 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
1009 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1010 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1011 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1012 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1013 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1014 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1015 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1016 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1017 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1018 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1019 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1020 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1021 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1022 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1023 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1024 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1025 | ||
287cefd0 EP |
1026 | _DTV_CMD(DTV_STREAM_ID, 1, 0), |
1027 | _DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0), | |
8a2697ab | 1028 | _DTV_CMD(DTV_LNA, 1, 0), |
98293ef3 | 1029 | |
6b73eeaf | 1030 | /* Get */ |
06d3a396 MCC |
1031 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1032 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
ba2780c7 MA |
1033 | |
1034 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
ca689488 MK |
1035 | |
1036 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 1, 0), | |
1037 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 1, 0), | |
1038 | ||
1039 | _DTV_CMD(DTV_ATSCMH_FIC_VER, 0, 0), | |
ca689488 MK |
1040 | _DTV_CMD(DTV_ATSCMH_NOG, 0, 0), |
1041 | _DTV_CMD(DTV_ATSCMH_TNOG, 0, 0), | |
1042 | _DTV_CMD(DTV_ATSCMH_SGN, 0, 0), | |
1043 | _DTV_CMD(DTV_ATSCMH_PRC, 0, 0), | |
1044 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_MODE, 0, 0), | |
ca689488 MK |
1045 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_PRI, 0, 0), |
1046 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_SEC, 0, 0), | |
1047 | _DTV_CMD(DTV_ATSCMH_SCCC_BLOCK_MODE, 0, 0), | |
1048 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_A, 0, 0), | |
1049 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), | |
1050 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), | |
1051 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), | |
7cd4ece5 MCC |
1052 | |
1053 | /* Statistics API */ | |
1054 | _DTV_CMD(DTV_STAT_SIGNAL_STRENGTH, 0, 0), | |
1055 | _DTV_CMD(DTV_STAT_CNR, 0, 0), | |
1056 | _DTV_CMD(DTV_STAT_PRE_ERROR_BIT_COUNT, 0, 0), | |
1057 | _DTV_CMD(DTV_STAT_PRE_TOTAL_BIT_COUNT, 0, 0), | |
1058 | _DTV_CMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0, 0), | |
1059 | _DTV_CMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0, 0), | |
1060 | _DTV_CMD(DTV_STAT_ERROR_BLOCK_COUNT, 0, 0), | |
1061 | _DTV_CMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0, 0), | |
6b73eeaf ST |
1062 | }; |
1063 | ||
36bdbc3f | 1064 | static void dtv_property_dump(struct dvb_frontend *fe, struct dtv_property *tvp) |
6b73eeaf ST |
1065 | { |
1066 | int i; | |
1067 | ||
106ff9e0 | 1068 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
36bdbc3f AP |
1069 | dev_warn(fe->dvb->device, "%s: tvp.cmd = 0x%08x undefined\n", |
1070 | __func__, tvp->cmd); | |
4aae8efb DB |
1071 | return; |
1072 | } | |
1073 | ||
36bdbc3f AP |
1074 | dev_dbg(fe->dvb->device, "%s: tvp.cmd = 0x%08x (%s)\n", __func__, |
1075 | tvp->cmd, dtv_cmds[tvp->cmd].name); | |
6b73eeaf | 1076 | |
36bdbc3f AP |
1077 | if (dtv_cmds[tvp->cmd].buffer) { |
1078 | dev_dbg(fe->dvb->device, "%s: tvp.u.buffer.len = 0x%02x\n", | |
1079 | __func__, tvp->u.buffer.len); | |
6b73eeaf ST |
1080 | |
1081 | for(i = 0; i < tvp->u.buffer.len; i++) | |
36bdbc3f AP |
1082 | dev_dbg(fe->dvb->device, |
1083 | "%s: tvp.u.buffer.data[0x%02x] = 0x%02x\n", | |
1084 | __func__, i, tvp->u.buffer.data[i]); | |
1085 | } else { | |
1086 | dev_dbg(fe->dvb->device, "%s: tvp.u.data = 0x%08x\n", __func__, | |
1087 | tvp->u.data); | |
1088 | } | |
6b73eeaf ST |
1089 | } |
1090 | ||
ee33c525 ST |
1091 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1092 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1093 | * it's being used for the legacy or new API, reducing code and complexity. | |
1094 | */ | |
5bfaadde MCC |
1095 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1096 | struct dtv_frontend_properties *c, | |
1097 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1098 | { |
ee33c525 ST |
1099 | c->frequency = p->frequency; |
1100 | c->inversion = p->inversion; | |
1101 | ||
5bfaadde MCC |
1102 | switch (dvbv3_type(c->delivery_system)) { |
1103 | case DVBV3_QPSK: | |
36bdbc3f | 1104 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
ee33c525 ST |
1105 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1106 | c->fec_inner = p->u.qpsk.fec_inner; | |
1107 | break; | |
5bfaadde | 1108 | case DVBV3_QAM: |
36bdbc3f | 1109 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
ee33c525 ST |
1110 | c->symbol_rate = p->u.qam.symbol_rate; |
1111 | c->fec_inner = p->u.qam.fec_inner; | |
1112 | c->modulation = p->u.qam.modulation; | |
1113 | break; | |
5bfaadde | 1114 | case DVBV3_OFDM: |
36bdbc3f AP |
1115 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
1116 | ||
9a27e6a0 MCC |
1117 | switch (p->u.ofdm.bandwidth) { |
1118 | case BANDWIDTH_10_MHZ: | |
1119 | c->bandwidth_hz = 10000000; | |
1120 | break; | |
1121 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1122 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1123 | break; |
1124 | case BANDWIDTH_7_MHZ: | |
1125 | c->bandwidth_hz = 7000000; | |
1126 | break; | |
1127 | case BANDWIDTH_6_MHZ: | |
1128 | c->bandwidth_hz = 6000000; | |
1129 | break; | |
1130 | case BANDWIDTH_5_MHZ: | |
1131 | c->bandwidth_hz = 5000000; | |
1132 | break; | |
1133 | case BANDWIDTH_1_712_MHZ: | |
1134 | c->bandwidth_hz = 1712000; | |
1135 | break; | |
1136 | case BANDWIDTH_AUTO: | |
75b7f943 | 1137 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1138 | } |
1139 | ||
ee33c525 ST |
1140 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1141 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1142 | c->modulation = p->u.ofdm.constellation; | |
1143 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1144 | c->guard_interval = p->u.ofdm.guard_interval; | |
1145 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1146 | break; | |
5bfaadde | 1147 | case DVBV3_ATSC: |
36bdbc3f | 1148 | dev_dbg(fe->dvb->device, "%s: Preparing ATSC req\n", __func__); |
ee33c525 | 1149 | c->modulation = p->u.vsb.modulation; |
ca689488 MK |
1150 | if (c->delivery_system == SYS_ATSCMH) |
1151 | break; | |
80a773c9 ST |
1152 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1153 | c->delivery_system = SYS_ATSC; | |
1154 | else | |
1155 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1156 | break; |
5bfaadde | 1157 | case DVBV3_UNKNOWN: |
36bdbc3f AP |
1158 | dev_err(fe->dvb->device, |
1159 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1160 | __func__, c->delivery_system); | |
5bfaadde | 1161 | return -EINVAL; |
ee33c525 | 1162 | } |
5bfaadde MCC |
1163 | |
1164 | return 0; | |
ee33c525 ST |
1165 | } |
1166 | ||
d5748f10 ST |
1167 | /* Ensure the cached values are set correctly in the frontend |
1168 | * legacy tuning structures, for the advanced tuning API. | |
1169 | */ | |
5bfaadde | 1170 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
a689e365 | 1171 | struct dvb_frontend_parameters *p) |
6b73eeaf | 1172 | { |
15cc2bb3 | 1173 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1174 | |
d5748f10 ST |
1175 | p->frequency = c->frequency; |
1176 | p->inversion = c->inversion; | |
6b73eeaf | 1177 | |
5bfaadde MCC |
1178 | switch (dvbv3_type(c->delivery_system)) { |
1179 | case DVBV3_UNKNOWN: | |
36bdbc3f AP |
1180 | dev_err(fe->dvb->device, |
1181 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1182 | __func__, c->delivery_system); | |
5bfaadde MCC |
1183 | return -EINVAL; |
1184 | case DVBV3_QPSK: | |
36bdbc3f | 1185 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
d5748f10 ST |
1186 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1187 | p->u.qpsk.fec_inner = c->fec_inner; | |
1188 | break; | |
5bfaadde | 1189 | case DVBV3_QAM: |
36bdbc3f | 1190 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
d5748f10 ST |
1191 | p->u.qam.symbol_rate = c->symbol_rate; |
1192 | p->u.qam.fec_inner = c->fec_inner; | |
1193 | p->u.qam.modulation = c->modulation; | |
1194 | break; | |
5bfaadde | 1195 | case DVBV3_OFDM: |
36bdbc3f | 1196 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
9a27e6a0 MCC |
1197 | switch (c->bandwidth_hz) { |
1198 | case 10000000: | |
1199 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1200 | break; | |
1201 | case 8000000: | |
75b7f943 | 1202 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1203 | break; |
1204 | case 7000000: | |
1205 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1206 | break; | |
1207 | case 6000000: | |
1208 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1209 | break; | |
1210 | case 5000000: | |
1211 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1212 | break; | |
1213 | case 1712000: | |
1214 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1215 | break; | |
1216 | case 0: | |
1217 | default: | |
75b7f943 | 1218 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1219 | } |
d5748f10 ST |
1220 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1221 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1222 | p->u.ofdm.constellation = c->modulation; | |
1223 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1224 | p->u.ofdm.guard_interval = c->guard_interval; | |
1225 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1226 | break; | |
5bfaadde | 1227 | case DVBV3_ATSC: |
36bdbc3f | 1228 | dev_dbg(fe->dvb->device, "%s: Preparing VSB req\n", __func__); |
d5748f10 ST |
1229 | p->u.vsb.modulation = c->modulation; |
1230 | break; | |
1231 | } | |
5bfaadde | 1232 | return 0; |
6b73eeaf ST |
1233 | } |
1234 | ||
a689e365 MCC |
1235 | /** |
1236 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1237 | * @fe: struct dvb_frontend pointer | |
1238 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1239 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1240 | * | |
1241 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1242 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1243 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1244 | */ | |
1245 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
a689e365 MCC |
1246 | struct dvb_frontend_parameters *p_out) |
1247 | { | |
a689e365 MCC |
1248 | int r; |
1249 | ||
a689e365 | 1250 | if (fe->ops.get_frontend) { |
7c61d80a | 1251 | r = fe->ops.get_frontend(fe); |
a689e365 MCC |
1252 | if (unlikely(r < 0)) |
1253 | return r; | |
7c61d80a | 1254 | if (p_out) |
a689e365 MCC |
1255 | dtv_property_legacy_params_sync(fe, p_out); |
1256 | return 0; | |
1257 | } | |
1258 | ||
7c61d80a | 1259 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1260 | return 0; |
a689e365 MCC |
1261 | } |
1262 | ||
16ef8def | 1263 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1264 | unsigned int cmd, void *parg); |
16ef8def | 1265 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1266 | unsigned int cmd, void *parg); |
1267 | ||
072ce0c5 | 1268 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1269 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1270 | struct dtv_property *tvp, |
16ef8def | 1271 | struct file *file) |
363429a0 | 1272 | { |
5bfaadde | 1273 | int r, ncaps; |
bfbf2dae | 1274 | |
363429a0 | 1275 | switch(tvp->cmd) { |
ba2780c7 | 1276 | case DTV_ENUM_DELSYS: |
5bfaadde | 1277 | ncaps = 0; |
0123f29c | 1278 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
5bfaadde MCC |
1279 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; |
1280 | ncaps++; | |
1281 | } | |
1282 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1283 | break; |
363429a0 | 1284 | case DTV_FREQUENCY: |
50727719 | 1285 | tvp->u.data = c->frequency; |
363429a0 ST |
1286 | break; |
1287 | case DTV_MODULATION: | |
50727719 | 1288 | tvp->u.data = c->modulation; |
363429a0 | 1289 | break; |
75b7f943 | 1290 | case DTV_BANDWIDTH_HZ: |
50727719 | 1291 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1292 | break; |
1293 | case DTV_INVERSION: | |
50727719 | 1294 | tvp->u.data = c->inversion; |
363429a0 ST |
1295 | break; |
1296 | case DTV_SYMBOL_RATE: | |
50727719 | 1297 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1298 | break; |
1299 | case DTV_INNER_FEC: | |
50727719 | 1300 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1301 | break; |
1302 | case DTV_PILOT: | |
50727719 | 1303 | tvp->u.data = c->pilot; |
363429a0 ST |
1304 | break; |
1305 | case DTV_ROLLOFF: | |
50727719 | 1306 | tvp->u.data = c->rolloff; |
363429a0 ST |
1307 | break; |
1308 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1309 | tvp->u.data = c->delivery_system; |
363429a0 | 1310 | break; |
363429a0 | 1311 | case DTV_VOLTAGE: |
50727719 | 1312 | tvp->u.data = c->voltage; |
363429a0 ST |
1313 | break; |
1314 | case DTV_TONE: | |
50727719 | 1315 | tvp->u.data = c->sectone; |
363429a0 | 1316 | break; |
eacf8d8d ST |
1317 | case DTV_API_VERSION: |
1318 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1319 | break; | |
a4de91be | 1320 | case DTV_CODE_RATE_HP: |
50727719 | 1321 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1322 | break; |
1323 | case DTV_CODE_RATE_LP: | |
50727719 | 1324 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1325 | break; |
b87625f0 | 1326 | case DTV_GUARD_INTERVAL: |
50727719 | 1327 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1328 | break; |
1329 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1330 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1331 | break; |
ef526f42 | 1332 | case DTV_HIERARCHY: |
50727719 | 1333 | tvp->u.data = c->hierarchy; |
ef526f42 | 1334 | break; |
224b6642 AP |
1335 | case DTV_INTERLEAVING: |
1336 | tvp->u.data = c->interleaving; | |
1337 | break; | |
b6e760f3 PB |
1338 | |
1339 | /* ISDB-T Support here */ | |
1340 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1341 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1342 | break; |
1343 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1344 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1345 | break; |
1346 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1347 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1348 | break; |
1349 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1350 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1351 | break; |
1352 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1353 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1354 | break; |
e7b7949a | 1355 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1356 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1357 | break; |
b6e760f3 | 1358 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1359 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1360 | break; |
1361 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1362 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1363 | break; |
1364 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1365 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1366 | break; |
1367 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1368 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1369 | break; |
1370 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1371 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1372 | break; |
1373 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1374 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1375 | break; |
1376 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1377 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1378 | break; |
1379 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1380 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1381 | break; |
1382 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1383 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1384 | break; |
1385 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1386 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1387 | break; |
1388 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1389 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1390 | break; |
1391 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1392 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1393 | break; |
287cefd0 EP |
1394 | |
1395 | /* Multistream support */ | |
1396 | case DTV_STREAM_ID: | |
1397 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1398 | tvp->u.data = c->stream_id; | |
94d56ffa | 1399 | break; |
ca689488 MK |
1400 | |
1401 | /* ATSC-MH */ | |
1402 | case DTV_ATSCMH_FIC_VER: | |
1403 | tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver; | |
1404 | break; | |
1405 | case DTV_ATSCMH_PARADE_ID: | |
1406 | tvp->u.data = fe->dtv_property_cache.atscmh_parade_id; | |
1407 | break; | |
1408 | case DTV_ATSCMH_NOG: | |
1409 | tvp->u.data = fe->dtv_property_cache.atscmh_nog; | |
1410 | break; | |
1411 | case DTV_ATSCMH_TNOG: | |
1412 | tvp->u.data = fe->dtv_property_cache.atscmh_tnog; | |
1413 | break; | |
1414 | case DTV_ATSCMH_SGN: | |
1415 | tvp->u.data = fe->dtv_property_cache.atscmh_sgn; | |
1416 | break; | |
1417 | case DTV_ATSCMH_PRC: | |
1418 | tvp->u.data = fe->dtv_property_cache.atscmh_prc; | |
1419 | break; | |
1420 | case DTV_ATSCMH_RS_FRAME_MODE: | |
1421 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_mode; | |
1422 | break; | |
1423 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1424 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_ensemble; | |
1425 | break; | |
1426 | case DTV_ATSCMH_RS_CODE_MODE_PRI: | |
1427 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_pri; | |
1428 | break; | |
1429 | case DTV_ATSCMH_RS_CODE_MODE_SEC: | |
1430 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_sec; | |
1431 | break; | |
1432 | case DTV_ATSCMH_SCCC_BLOCK_MODE: | |
1433 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_block_mode; | |
1434 | break; | |
1435 | case DTV_ATSCMH_SCCC_CODE_MODE_A: | |
1436 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_a; | |
1437 | break; | |
1438 | case DTV_ATSCMH_SCCC_CODE_MODE_B: | |
1439 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_b; | |
1440 | break; | |
1441 | case DTV_ATSCMH_SCCC_CODE_MODE_C: | |
1442 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_c; | |
1443 | break; | |
1444 | case DTV_ATSCMH_SCCC_CODE_MODE_D: | |
1445 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; | |
1446 | break; | |
ca689488 | 1447 | |
33eebec5 AP |
1448 | case DTV_LNA: |
1449 | tvp->u.data = c->lna; | |
1450 | break; | |
1451 | ||
7cd4ece5 MCC |
1452 | /* Fill quality measures */ |
1453 | case DTV_STAT_SIGNAL_STRENGTH: | |
1454 | tvp->u.st = c->strength; | |
1455 | break; | |
1456 | case DTV_STAT_CNR: | |
1457 | tvp->u.st = c->cnr; | |
1458 | break; | |
1459 | case DTV_STAT_PRE_ERROR_BIT_COUNT: | |
1460 | tvp->u.st = c->pre_bit_error; | |
1461 | break; | |
1462 | case DTV_STAT_PRE_TOTAL_BIT_COUNT: | |
1463 | tvp->u.st = c->pre_bit_count; | |
1464 | break; | |
1465 | case DTV_STAT_POST_ERROR_BIT_COUNT: | |
1466 | tvp->u.st = c->post_bit_error; | |
1467 | break; | |
1468 | case DTV_STAT_POST_TOTAL_BIT_COUNT: | |
1469 | tvp->u.st = c->post_bit_count; | |
1470 | break; | |
1471 | case DTV_STAT_ERROR_BLOCK_COUNT: | |
1472 | tvp->u.st = c->block_error; | |
1473 | break; | |
1474 | case DTV_STAT_TOTAL_BLOCK_COUNT: | |
1475 | tvp->u.st = c->block_count; | |
1476 | break; | |
363429a0 | 1477 | default: |
94a93e5f MCC |
1478 | dev_dbg(fe->dvb->device, |
1479 | "%s: FE property %d doesn't exist\n", | |
1480 | __func__, tvp->cmd); | |
aff8ab5c | 1481 | return -EINVAL; |
363429a0 ST |
1482 | } |
1483 | ||
e23d9ae3 AO |
1484 | /* Allow the frontend to override outgoing properties */ |
1485 | if (fe->ops.get_property) { | |
1486 | r = fe->ops.get_property(fe, tvp); | |
1487 | if (r < 0) | |
1488 | return r; | |
1489 | } | |
1490 | ||
36bdbc3f | 1491 | dtv_property_dump(fe, tvp); |
639544d7 | 1492 | |
aff8ab5c | 1493 | return 0; |
363429a0 ST |
1494 | } |
1495 | ||
5bfaadde MCC |
1496 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1497 | ||
04be0f76 MCC |
1498 | static bool is_dvbv3_delsys(u32 delsys) |
1499 | { | |
1500 | bool status; | |
1501 | ||
1502 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || | |
1503 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
1504 | ||
1505 | return status; | |
1506 | } | |
1507 | ||
52dee392 MCC |
1508 | /** |
1509 | * emulate_delivery_system - emulate a DVBv5 delivery system with a DVBv3 type | |
1510 | * @fe: struct frontend; | |
1511 | * @delsys: DVBv5 type that will be used for emulation | |
1512 | * | |
1513 | * Provides emulation for delivery systems that are compatible with the old | |
1514 | * DVBv3 call. Among its usages, it provices support for ISDB-T, and allows | |
1515 | * using a DVB-S2 only frontend just like it were a DVB-S, if the frontent | |
1516 | * parameters are compatible with DVB-S spec. | |
1517 | */ | |
1518 | static int emulate_delivery_system(struct dvb_frontend *fe, u32 delsys) | |
04be0f76 | 1519 | { |
be431b16 | 1520 | int i; |
04be0f76 | 1521 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
04be0f76 | 1522 | |
3626479e MCC |
1523 | c->delivery_system = delsys; |
1524 | ||
04be0f76 | 1525 | /* |
52dee392 | 1526 | * If the call is for ISDB-T, put it into full-seg, auto mode, TV |
04be0f76 | 1527 | */ |
52dee392 MCC |
1528 | if (c->delivery_system == SYS_ISDBT) { |
1529 | dev_dbg(fe->dvb->device, | |
1530 | "%s: Using defaults for SYS_ISDBT\n", | |
1531 | __func__); | |
04be0f76 | 1532 | |
52dee392 MCC |
1533 | if (!c->bandwidth_hz) |
1534 | c->bandwidth_hz = 6000000; | |
1535 | ||
1536 | c->isdbt_partial_reception = 0; | |
1537 | c->isdbt_sb_mode = 0; | |
1538 | c->isdbt_sb_subchannel = 0; | |
1539 | c->isdbt_sb_segment_idx = 0; | |
1540 | c->isdbt_sb_segment_count = 0; | |
1541 | c->isdbt_layer_enabled = 7; | |
1542 | for (i = 0; i < 3; i++) { | |
1543 | c->layer[i].fec = FEC_AUTO; | |
1544 | c->layer[i].modulation = QAM_AUTO; | |
1545 | c->layer[i].interleaving = 0; | |
1546 | c->layer[i].segment_count = 0; | |
04be0f76 MCC |
1547 | } |
1548 | } | |
36bdbc3f | 1549 | dev_dbg(fe->dvb->device, "%s: change delivery system on cache to %d\n", |
52dee392 | 1550 | __func__, c->delivery_system); |
9474c5e6 | 1551 | |
04be0f76 MCC |
1552 | return 0; |
1553 | } | |
1554 | ||
52dee392 MCC |
1555 | /** |
1556 | * dvbv5_set_delivery_system - Sets the delivery system for a DVBv5 API call | |
1557 | * @fe: frontend struct | |
1558 | * @desired_system: delivery system requested by the user | |
1559 | * | |
1560 | * A DVBv5 call know what's the desired system it wants. So, set it. | |
1561 | * | |
1562 | * There are, however, a few known issues with early DVBv5 applications that | |
1563 | * are also handled by this logic: | |
1564 | * | |
1565 | * 1) Some early apps use SYS_UNDEFINED as the desired delivery system. | |
1566 | * This is an API violation, but, as we don't want to break userspace, | |
1567 | * convert it to the first supported delivery system. | |
1568 | * 2) Some apps might be using a DVBv5 call in a wrong way, passing, for | |
1569 | * example, SYS_DVBT instead of SYS_ISDBT. This is because early usage of | |
1570 | * ISDB-T provided backward compat with DVB-T. | |
1571 | */ | |
be431b16 MCC |
1572 | static int dvbv5_set_delivery_system(struct dvb_frontend *fe, |
1573 | u32 desired_system) | |
1574 | { | |
1575 | int ncaps; | |
1576 | u32 delsys = SYS_UNDEFINED; | |
1577 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1578 | enum dvbv3_emulation_type type; | |
1579 | ||
1580 | /* | |
1581 | * It was reported that some old DVBv5 applications were | |
1582 | * filling delivery_system with SYS_UNDEFINED. If this happens, | |
1583 | * assume that the application wants to use the first supported | |
1584 | * delivery system. | |
1585 | */ | |
52dee392 MCC |
1586 | if (desired_system == SYS_UNDEFINED) |
1587 | desired_system = fe->ops.delsys[0]; | |
be431b16 MCC |
1588 | |
1589 | /* | |
52dee392 MCC |
1590 | * This is a DVBv5 call. So, it likely knows the supported |
1591 | * delivery systems. So, check if the desired delivery system is | |
1592 | * supported | |
1593 | */ | |
be431b16 | 1594 | ncaps = 0; |
0123f29c | 1595 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
be431b16 MCC |
1596 | if (fe->ops.delsys[ncaps] == desired_system) { |
1597 | c->delivery_system = desired_system; | |
1598 | dev_dbg(fe->dvb->device, | |
1599 | "%s: Changing delivery system to %d\n", | |
1600 | __func__, desired_system); | |
1601 | return 0; | |
1602 | } | |
1603 | ncaps++; | |
1604 | } | |
1605 | ||
1606 | /* | |
52dee392 MCC |
1607 | * The requested delivery system isn't supported. Maybe userspace |
1608 | * is requesting a DVBv3 compatible delivery system. | |
1609 | * | |
1610 | * The emulation only works if the desired system is one of the | |
1611 | * delivery systems supported by DVBv3 API | |
be431b16 | 1612 | */ |
be431b16 MCC |
1613 | if (!is_dvbv3_delsys(desired_system)) { |
1614 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1615 | "%s: Delivery system %d not supported.\n", |
1616 | __func__, desired_system); | |
be431b16 MCC |
1617 | return -EINVAL; |
1618 | } | |
1619 | ||
52dee392 MCC |
1620 | type = dvbv3_type(desired_system); |
1621 | ||
be431b16 MCC |
1622 | /* |
1623 | * Get the last non-DVBv3 delivery system that has the same type | |
1624 | * of the desired system | |
1625 | */ | |
1626 | ncaps = 0; | |
0123f29c | 1627 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
52dee392 | 1628 | if (dvbv3_type(fe->ops.delsys[ncaps]) == type) |
be431b16 MCC |
1629 | delsys = fe->ops.delsys[ncaps]; |
1630 | ncaps++; | |
1631 | } | |
52dee392 | 1632 | |
be431b16 MCC |
1633 | /* There's nothing compatible with the desired delivery system */ |
1634 | if (delsys == SYS_UNDEFINED) { | |
1635 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1636 | "%s: Delivery system %d not supported on emulation mode.\n", |
1637 | __func__, desired_system); | |
be431b16 MCC |
1638 | return -EINVAL; |
1639 | } | |
1640 | ||
52dee392 MCC |
1641 | dev_dbg(fe->dvb->device, |
1642 | "%s: Using delivery system %d emulated as if it were %d\n", | |
1643 | __func__, delsys, desired_system); | |
1644 | ||
1645 | return emulate_delivery_system(fe, desired_system); | |
be431b16 MCC |
1646 | } |
1647 | ||
52dee392 MCC |
1648 | /** |
1649 | * dvbv3_set_delivery_system - Sets the delivery system for a DVBv3 API call | |
1650 | * @fe: frontend struct | |
1651 | * | |
1652 | * A DVBv3 call doesn't know what's the desired system it wants. It also | |
1653 | * doesn't allow to switch between different types. Due to that, userspace | |
1654 | * should use DVBv5 instead. | |
1655 | * However, in order to avoid breaking userspace API, limited backward | |
1656 | * compatibility support is provided. | |
1657 | * | |
1658 | * There are some delivery systems that are incompatible with DVBv3 calls. | |
1659 | * | |
1660 | * This routine should work fine for frontends that support just one delivery | |
1661 | * system. | |
1662 | * | |
1663 | * For frontends that support multiple frontends: | |
1664 | * 1) It defaults to use the first supported delivery system. There's an | |
1665 | * userspace application that allows changing it at runtime; | |
1666 | * | |
1667 | * 2) If the current delivery system is not compatible with DVBv3, it gets | |
1668 | * the first one that it is compatible. | |
1669 | * | |
1670 | * NOTE: in order for this to work with applications like Kaffeine that | |
1671 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to | |
1672 | * DVB-S, drivers that support both DVB-S and DVB-S2 should have the | |
1673 | * SYS_DVBS entry before the SYS_DVBS2, otherwise it won't switch back | |
1674 | * to DVB-S. | |
1675 | */ | |
be431b16 MCC |
1676 | static int dvbv3_set_delivery_system(struct dvb_frontend *fe) |
1677 | { | |
1678 | int ncaps; | |
be431b16 MCC |
1679 | u32 delsys = SYS_UNDEFINED; |
1680 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
be431b16 MCC |
1681 | |
1682 | /* If not set yet, defaults to the first supported delivery system */ | |
1683 | if (c->delivery_system == SYS_UNDEFINED) | |
1684 | c->delivery_system = fe->ops.delsys[0]; | |
1685 | ||
be431b16 MCC |
1686 | /* |
1687 | * Trivial case: just use the current one, if it already a DVBv3 | |
1688 | * delivery system | |
1689 | */ | |
1690 | if (is_dvbv3_delsys(c->delivery_system)) { | |
1691 | dev_dbg(fe->dvb->device, | |
1692 | "%s: Using delivery system to %d\n", | |
1693 | __func__, c->delivery_system); | |
1694 | return 0; | |
1695 | } | |
1696 | ||
be431b16 | 1697 | /* |
52dee392 MCC |
1698 | * Seek for the first delivery system that it is compatible with a |
1699 | * DVBv3 standard | |
be431b16 MCC |
1700 | */ |
1701 | ncaps = 0; | |
0123f29c | 1702 | while (ncaps < MAX_DELSYS && fe->ops.delsys[ncaps]) { |
52dee392 MCC |
1703 | if (dvbv3_type(fe->ops.delsys[ncaps]) != DVBV3_UNKNOWN) { |
1704 | delsys = fe->ops.delsys[ncaps]; | |
be431b16 MCC |
1705 | break; |
1706 | } | |
1707 | ncaps++; | |
1708 | } | |
1709 | if (delsys == SYS_UNDEFINED) { | |
52dee392 MCC |
1710 | dev_dbg(fe->dvb->device, |
1711 | "%s: Couldn't find a delivery system that works with FE_SET_FRONTEND\n", | |
1712 | __func__); | |
1713 | return -EINVAL; | |
be431b16 | 1714 | } |
52dee392 | 1715 | return emulate_delivery_system(fe, delsys); |
be431b16 MCC |
1716 | } |
1717 | ||
072ce0c5 MCC |
1718 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1719 | struct dtv_property *tvp, | |
072ce0c5 | 1720 | struct file *file) |
6b73eeaf ST |
1721 | { |
1722 | int r = 0; | |
50727719 | 1723 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1724 | |
bfbf2dae | 1725 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1726 | if (fe->ops.set_property) { |
bfbf2dae | 1727 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1728 | if (r < 0) |
1729 | return r; | |
1730 | } | |
bfbf2dae | 1731 | |
6b73eeaf | 1732 | switch(tvp->cmd) { |
e7fee0f3 | 1733 | case DTV_CLEAR: |
5bfaadde MCC |
1734 | /* |
1735 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1736 | * not effect hardware. |
1737 | */ | |
b6e760f3 | 1738 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1739 | break; |
e7fee0f3 | 1740 | case DTV_TUNE: |
6b73eeaf | 1741 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1742 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1743 | * ioctl. | |
6b73eeaf | 1744 | */ |
50727719 | 1745 | c->state = tvp->cmd; |
36bdbc3f AP |
1746 | dev_dbg(fe->dvb->device, "%s: Finalised property cache\n", |
1747 | __func__); | |
d5748f10 | 1748 | |
5bfaadde | 1749 | r = dtv_set_frontend(fe); |
6b73eeaf | 1750 | break; |
363429a0 | 1751 | case DTV_FREQUENCY: |
50727719 | 1752 | c->frequency = tvp->u.data; |
6b73eeaf | 1753 | break; |
363429a0 | 1754 | case DTV_MODULATION: |
50727719 | 1755 | c->modulation = tvp->u.data; |
6b73eeaf | 1756 | break; |
75b7f943 | 1757 | case DTV_BANDWIDTH_HZ: |
50727719 | 1758 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1759 | break; |
363429a0 | 1760 | case DTV_INVERSION: |
50727719 | 1761 | c->inversion = tvp->u.data; |
6b73eeaf | 1762 | break; |
363429a0 | 1763 | case DTV_SYMBOL_RATE: |
50727719 | 1764 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1765 | break; |
363429a0 | 1766 | case DTV_INNER_FEC: |
50727719 | 1767 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1768 | break; |
363429a0 | 1769 | case DTV_PILOT: |
50727719 | 1770 | c->pilot = tvp->u.data; |
6b73eeaf | 1771 | break; |
363429a0 | 1772 | case DTV_ROLLOFF: |
50727719 | 1773 | c->rolloff = tvp->u.data; |
6b73eeaf | 1774 | break; |
363429a0 | 1775 | case DTV_DELIVERY_SYSTEM: |
be431b16 | 1776 | r = dvbv5_set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1777 | break; |
363429a0 | 1778 | case DTV_VOLTAGE: |
50727719 | 1779 | c->voltage = tvp->u.data; |
16ef8def | 1780 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1781 | (void *)c->voltage); |
13c97bf5 | 1782 | break; |
363429a0 | 1783 | case DTV_TONE: |
50727719 | 1784 | c->sectone = tvp->u.data; |
16ef8def | 1785 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1786 | (void *)c->sectone); |
13c97bf5 | 1787 | break; |
a4de91be | 1788 | case DTV_CODE_RATE_HP: |
50727719 | 1789 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1790 | break; |
1791 | case DTV_CODE_RATE_LP: | |
50727719 | 1792 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1793 | break; |
b87625f0 | 1794 | case DTV_GUARD_INTERVAL: |
50727719 | 1795 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1796 | break; |
1797 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1798 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1799 | break; |
ef526f42 | 1800 | case DTV_HIERARCHY: |
50727719 | 1801 | c->hierarchy = tvp->u.data; |
ef526f42 | 1802 | break; |
224b6642 AP |
1803 | case DTV_INTERLEAVING: |
1804 | c->interleaving = tvp->u.data; | |
1805 | break; | |
b6e760f3 PB |
1806 | |
1807 | /* ISDB-T Support here */ | |
1808 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1809 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1810 | break; |
1811 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1812 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1813 | break; |
1814 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1815 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1816 | break; |
1817 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1818 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1819 | break; |
1820 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1821 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1822 | break; |
e7b7949a | 1823 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1824 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1825 | break; |
b6e760f3 | 1826 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1827 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1828 | break; |
1829 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1830 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1831 | break; |
1832 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1833 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1834 | break; |
1835 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1836 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1837 | break; |
1838 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1839 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1840 | break; |
1841 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1842 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1843 | break; |
1844 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1845 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1846 | break; |
1847 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1848 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1849 | break; |
1850 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1851 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1852 | break; |
1853 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1854 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1855 | break; |
1856 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1857 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1858 | break; |
1859 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1860 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1861 | break; |
287cefd0 EP |
1862 | |
1863 | /* Multistream support */ | |
1864 | case DTV_STREAM_ID: | |
1865 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1866 | c->stream_id = tvp->u.data; | |
98293ef3 | 1867 | break; |
ca689488 MK |
1868 | |
1869 | /* ATSC-MH */ | |
1870 | case DTV_ATSCMH_PARADE_ID: | |
1871 | fe->dtv_property_cache.atscmh_parade_id = tvp->u.data; | |
1872 | break; | |
1873 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1874 | fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; | |
1875 | break; | |
1876 | ||
33eebec5 AP |
1877 | case DTV_LNA: |
1878 | c->lna = tvp->u.data; | |
1879 | if (fe->ops.set_lna) | |
1880 | r = fe->ops.set_lna(fe); | |
e6876692 MCC |
1881 | if (r < 0) |
1882 | c->lna = LNA_AUTO; | |
33eebec5 AP |
1883 | break; |
1884 | ||
363429a0 | 1885 | default: |
aff8ab5c | 1886 | return -EINVAL; |
6b73eeaf ST |
1887 | } |
1888 | ||
13c97bf5 | 1889 | return r; |
6b73eeaf ST |
1890 | } |
1891 | ||
16ef8def | 1892 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1893 | unsigned int cmd, void *parg) |
1894 | { | |
1895 | struct dvb_device *dvbdev = file->private_data; | |
1896 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1897 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1898 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac897586 | 1899 | int err = -EOPNOTSUPP; |
1da177e4 | 1900 | |
36bdbc3f | 1901 | dev_dbg(fe->dvb->device, "%s: (%d)\n", __func__, _IOC_NR(cmd)); |
6ae23224 JL |
1902 | if (down_interruptible(&fepriv->sem)) |
1903 | return -ERESTARTSYS; | |
1904 | ||
18ed2860 | 1905 | if (fe->exit != DVB_FE_NO_EXIT) { |
6ae23224 | 1906 | up(&fepriv->sem); |
1da177e4 | 1907 | return -ENODEV; |
6ae23224 | 1908 | } |
1da177e4 LT |
1909 | |
1910 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1911 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
6ae23224 JL |
1912 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) { |
1913 | up(&fepriv->sem); | |
1da177e4 | 1914 | return -EPERM; |
6ae23224 | 1915 | } |
1da177e4 | 1916 | |
13c97bf5 | 1917 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1918 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1919 | else { |
50727719 | 1920 | c->state = DTV_UNDEFINED; |
16ef8def | 1921 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1922 | } |
13c97bf5 ST |
1923 | |
1924 | up(&fepriv->sem); | |
1925 | return err; | |
1926 | } | |
1927 | ||
16ef8def | 1928 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1929 | unsigned int cmd, void *parg) |
1930 | { | |
1931 | struct dvb_device *dvbdev = file->private_data; | |
1932 | struct dvb_frontend *fe = dvbdev->priv; | |
51dcb19a | 1933 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
50727719 | 1934 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1935 | int err = 0; |
e7fee0f3 | 1936 | |
71d1b2be | 1937 | struct dtv_properties *tvps = parg; |
e7fee0f3 ST |
1938 | struct dtv_property *tvp = NULL; |
1939 | int i; | |
13c97bf5 | 1940 | |
36bdbc3f | 1941 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
13c97bf5 | 1942 | |
71d1b2be | 1943 | if (cmd == FE_SET_PROPERTY) { |
36bdbc3f AP |
1944 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1945 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1946 | |
1947 | /* Put an arbitrary limit on the number of messages that can | |
1948 | * be sent at once */ | |
6068f506 | 1949 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1950 | return -EINVAL; |
1951 | ||
6e3924aa | 1952 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1953 | if (!tvp) { |
1954 | err = -ENOMEM; | |
1955 | goto out; | |
6b73eeaf ST |
1956 | } |
1957 | ||
71d1b2be MCC |
1958 | if (copy_from_user(tvp, (void __user *)tvps->props, |
1959 | tvps->num * sizeof(struct dtv_property))) { | |
e7fee0f3 ST |
1960 | err = -EFAULT; |
1961 | goto out; | |
1962 | } | |
1963 | ||
d48cb402 | 1964 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1965 | err = dtv_property_process_set(fe, tvp + i, file); |
1966 | if (err < 0) | |
1967 | goto out; | |
1968 | (tvp + i)->result = err; | |
d48cb402 | 1969 | } |
e7fee0f3 | 1970 | |
50727719 | 1971 | if (c->state == DTV_TUNE) |
36bdbc3f | 1972 | dev_dbg(fe->dvb->device, "%s: Property cache is full, tuning\n", __func__); |
bfbf2dae | 1973 | |
71d1b2be | 1974 | } else if (cmd == FE_GET_PROPERTY) { |
36bdbc3f AP |
1975 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1976 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1977 | |
1978 | /* Put an arbitrary limit on the number of messages that can | |
1979 | * be sent at once */ | |
6068f506 | 1980 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1981 | return -EINVAL; |
1982 | ||
6e3924aa | 1983 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1984 | if (!tvp) { |
1985 | err = -ENOMEM; | |
1986 | goto out; | |
1987 | } | |
1988 | ||
71d1b2be MCC |
1989 | if (copy_from_user(tvp, (void __user *)tvps->props, |
1990 | tvps->num * sizeof(struct dtv_property))) { | |
363429a0 ST |
1991 | err = -EFAULT; |
1992 | goto out; | |
1993 | } | |
1994 | ||
a689e365 MCC |
1995 | /* |
1996 | * Fills the cache out struct with the cache contents, plus | |
51dcb19a MCC |
1997 | * the data retrieved from get_frontend, if the frontend |
1998 | * is not idle. Otherwise, returns the cached content | |
a689e365 | 1999 | */ |
51dcb19a MCC |
2000 | if (fepriv->state != FESTATE_IDLE) { |
2001 | err = dtv_get_frontend(fe, NULL); | |
2002 | if (err < 0) | |
2003 | goto out; | |
2004 | } | |
d48cb402 | 2005 | for (i = 0; i < tvps->num; i++) { |
7c61d80a | 2006 | err = dtv_property_process_get(fe, c, tvp + i, file); |
aff8ab5c AO |
2007 | if (err < 0) |
2008 | goto out; | |
2009 | (tvp + i)->result = err; | |
d48cb402 | 2010 | } |
363429a0 | 2011 | |
71d1b2be MCC |
2012 | if (copy_to_user((void __user *)tvps->props, tvp, |
2013 | tvps->num * sizeof(struct dtv_property))) { | |
363429a0 ST |
2014 | err = -EFAULT; |
2015 | goto out; | |
2016 | } | |
2017 | ||
363429a0 | 2018 | } else |
ac897586 | 2019 | err = -EOPNOTSUPP; |
363429a0 | 2020 | |
e7fee0f3 ST |
2021 | out: |
2022 | kfree(tvp); | |
13c97bf5 ST |
2023 | return err; |
2024 | } | |
2025 | ||
5bfaadde | 2026 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 2027 | { |
9682cea2 MCC |
2028 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
2029 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
2030 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 2031 | u32 rolloff = 0; |
9682cea2 | 2032 | |
5bfaadde MCC |
2033 | if (dvb_frontend_check_parameters(fe) < 0) |
2034 | return -EINVAL; | |
9682cea2 | 2035 | |
556a0442 CR |
2036 | /* |
2037 | * Initialize output parameters to match the values given by | |
2038 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
2039 | * with status = 0, which copies output parameters to userspace. | |
2040 | */ | |
2041 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); | |
2042 | ||
5bfaadde MCC |
2043 | /* |
2044 | * Be sure that the bandwidth will be filled for all | |
2045 | * non-satellite systems, as tuners need to know what | |
2046 | * low pass/Nyquist half filter should be applied, in | |
2047 | * order to avoid inter-channel noise. | |
2048 | * | |
2049 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
2050 | * ATSC and DVB-C don't set, so, the core should fill it. | |
2051 | * | |
2052 | * On DVB-C Annex A and C, the bandwidth is a function of | |
2053 | * the roll-off and symbol rate. Annex B defines different | |
2054 | * roll-off factors depending on the modulation. Fortunately, | |
2055 | * Annex B is only used with 6MHz, so there's no need to | |
2056 | * calculate it. | |
2057 | * | |
2058 | * While not officially supported, a side effect of handling it at | |
2059 | * the cache level is that a program could retrieve the bandwidth | |
2060 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
2061 | */ | |
2062 | switch (c->delivery_system) { | |
2063 | case SYS_ATSC: | |
2064 | case SYS_DVBC_ANNEX_B: | |
2065 | c->bandwidth_hz = 6000000; | |
2066 | break; | |
2067 | case SYS_DVBC_ANNEX_A: | |
2068 | rolloff = 115; | |
2069 | break; | |
2070 | case SYS_DVBC_ANNEX_C: | |
2071 | rolloff = 113; | |
2072 | break; | |
c623ed63 MCC |
2073 | case SYS_DVBS: |
2074 | case SYS_TURBO: | |
2075 | rolloff = 135; | |
2076 | break; | |
2077 | case SYS_DVBS2: | |
2078 | switch (c->rolloff) { | |
2079 | case ROLLOFF_20: | |
2080 | rolloff = 120; | |
2081 | break; | |
2082 | case ROLLOFF_25: | |
2083 | rolloff = 125; | |
2084 | break; | |
2085 | default: | |
2086 | case ROLLOFF_35: | |
2087 | rolloff = 135; | |
2088 | } | |
2089 | break; | |
5bfaadde MCC |
2090 | default: |
2091 | break; | |
2092 | } | |
2093 | if (rolloff) | |
2094 | c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; | |
9682cea2 MCC |
2095 | |
2096 | /* force auto frequency inversion if requested */ | |
5bfaadde | 2097 | if (dvb_force_auto_inversion) |
9682cea2 | 2098 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
2099 | |
2100 | /* | |
2101 | * without hierarchical coding code_rate_LP is irrelevant, | |
2102 | * so we tolerate the otherwise invalid FEC_NONE setting | |
2103 | */ | |
2104 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
2105 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
2106 | |
2107 | /* get frontend-specific tuning settings */ | |
5bfaadde | 2108 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
2109 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
2110 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
2111 | fepriv->max_drift = fetunesettings.max_drift; | |
2112 | fepriv->step_size = fetunesettings.step_size; | |
2113 | } else { | |
2114 | /* default values */ | |
5bfaadde | 2115 | switch (c->delivery_system) { |
910a5f2e MCC |
2116 | case SYS_DVBS: |
2117 | case SYS_DVBS2: | |
2118 | case SYS_ISDBS: | |
2119 | case SYS_TURBO: | |
5bfaadde MCC |
2120 | case SYS_DVBC_ANNEX_A: |
2121 | case SYS_DVBC_ANNEX_C: | |
2122 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
2123 | fepriv->step_size = c->symbol_rate / 16000; |
2124 | fepriv->max_drift = c->symbol_rate / 2000; | |
2125 | break; | |
5bfaadde MCC |
2126 | case SYS_DVBT: |
2127 | case SYS_DVBT2: | |
2128 | case SYS_ISDBT: | |
224b6642 | 2129 | case SYS_DTMB: |
5bfaadde | 2130 | fepriv->min_delay = HZ / 20; |
9682cea2 MCC |
2131 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
2132 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
2133 | break; | |
5bfaadde MCC |
2134 | default: |
2135 | /* | |
2136 | * FIXME: This sounds wrong! if freqency_stepsize is | |
2137 | * defined by the frontend, why not use it??? | |
2138 | */ | |
2139 | fepriv->min_delay = HZ / 20; | |
2140 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
2141 | fepriv->max_drift = 0; |
2142 | break; | |
2143 | } | |
2144 | } | |
2145 | if (dvb_override_tune_delay > 0) | |
2146 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
2147 | ||
2148 | fepriv->state = FESTATE_RETUNE; | |
2149 | ||
2150 | /* Request the search algorithm to search */ | |
2151 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
2152 | ||
2153 | dvb_frontend_clear_events(fe); | |
2154 | dvb_frontend_add_event(fe, 0); | |
2155 | dvb_frontend_wakeup(fe); | |
2156 | fepriv->status = 0; | |
2157 | ||
2158 | return 0; | |
2159 | } | |
2160 | ||
2161 | ||
16ef8def | 2162 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
2163 | unsigned int cmd, void *parg) |
2164 | { | |
2165 | struct dvb_device *dvbdev = file->private_data; | |
2166 | struct dvb_frontend *fe = dvbdev->priv; | |
2167 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 2168 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
ac897586 | 2169 | int err = -EOPNOTSUPP; |
13c97bf5 | 2170 | |
1da177e4 LT |
2171 | switch (cmd) { |
2172 | case FE_GET_INFO: { | |
0c53c70f | 2173 | struct dvb_frontend_info* info = parg; |
9474c5e6 | 2174 | |
dea74869 | 2175 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 2176 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 2177 | |
5bfaadde MCC |
2178 | /* |
2179 | * Associate the 4 delivery systems supported by DVBv3 | |
2180 | * API with their DVBv5 counterpart. For the other standards, | |
2181 | * use the closest type, assuming that it would hopefully | |
2182 | * work with a DVBv3 application. | |
2183 | * It should be noticed that, on multi-frontend devices with | |
2184 | * different types (terrestrial and cable, for example), | |
2185 | * a pure DVBv3 application won't be able to use all delivery | |
2186 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
2187 | * system should be enough for making it work. | |
2188 | */ | |
2189 | switch (dvbv3_type(c->delivery_system)) { | |
2190 | case DVBV3_QPSK: | |
9474c5e6 | 2191 | info->type = FE_QPSK; |
5bfaadde MCC |
2192 | break; |
2193 | case DVBV3_ATSC: | |
9474c5e6 | 2194 | info->type = FE_ATSC; |
5bfaadde MCC |
2195 | break; |
2196 | case DVBV3_QAM: | |
9474c5e6 | 2197 | info->type = FE_QAM; |
5bfaadde MCC |
2198 | break; |
2199 | case DVBV3_OFDM: | |
9474c5e6 | 2200 | info->type = FE_OFDM; |
5bfaadde MCC |
2201 | break; |
2202 | default: | |
36bdbc3f AP |
2203 | dev_err(fe->dvb->device, |
2204 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
2205 | __func__, c->delivery_system); | |
5bfaadde MCC |
2206 | fe->ops.info.type = FE_OFDM; |
2207 | } | |
36bdbc3f AP |
2208 | dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n", |
2209 | __func__, c->delivery_system, fe->ops.info.type); | |
5bfaadde | 2210 | |
1da177e4 LT |
2211 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't |
2212 | * do it, it is done for it. */ | |
2213 | info->caps |= FE_CAN_INVERSION_AUTO; | |
2214 | err = 0; | |
2215 | break; | |
2216 | } | |
2217 | ||
6757ccc5 PB |
2218 | case FE_READ_STATUS: { |
2219 | fe_status_t* status = parg; | |
2220 | ||
25985edc | 2221 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2222 | * that user get signal state from previous tuning */ |
01886255 JG |
2223 | if (fepriv->state == FESTATE_RETUNE || |
2224 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2225 | err=0; |
2226 | *status = 0; | |
2227 | break; | |
2228 | } | |
2229 | ||
dea74869 PB |
2230 | if (fe->ops.read_status) |
2231 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2232 | break; |
6757ccc5 | 2233 | } |
48caa6f1 | 2234 | |
1da177e4 | 2235 | case FE_READ_BER: |
48caa6f1 AP |
2236 | if (fe->ops.read_ber) { |
2237 | if (fepriv->thread) | |
2238 | err = fe->ops.read_ber(fe, (__u32 *) parg); | |
2239 | else | |
2240 | err = -EAGAIN; | |
2241 | } | |
1da177e4 LT |
2242 | break; |
2243 | ||
2244 | case FE_READ_SIGNAL_STRENGTH: | |
48caa6f1 AP |
2245 | if (fe->ops.read_signal_strength) { |
2246 | if (fepriv->thread) | |
2247 | err = fe->ops.read_signal_strength(fe, (__u16 *) parg); | |
2248 | else | |
2249 | err = -EAGAIN; | |
2250 | } | |
1da177e4 LT |
2251 | break; |
2252 | ||
2253 | case FE_READ_SNR: | |
48caa6f1 AP |
2254 | if (fe->ops.read_snr) { |
2255 | if (fepriv->thread) | |
2256 | err = fe->ops.read_snr(fe, (__u16 *) parg); | |
2257 | else | |
2258 | err = -EAGAIN; | |
2259 | } | |
1da177e4 LT |
2260 | break; |
2261 | ||
2262 | case FE_READ_UNCORRECTED_BLOCKS: | |
48caa6f1 AP |
2263 | if (fe->ops.read_ucblocks) { |
2264 | if (fepriv->thread) | |
2265 | err = fe->ops.read_ucblocks(fe, (__u32 *) parg); | |
2266 | else | |
2267 | err = -EAGAIN; | |
2268 | } | |
1da177e4 LT |
2269 | break; |
2270 | ||
1da177e4 | 2271 | case FE_DISEQC_RESET_OVERLOAD: |
dea74869 PB |
2272 | if (fe->ops.diseqc_reset_overload) { |
2273 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2274 | fepriv->state = FESTATE_DISEQC; |
2275 | fepriv->status = 0; | |
2276 | } | |
2277 | break; | |
2278 | ||
2279 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
2280 | if (fe->ops.diseqc_send_master_cmd) { |
2281 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
2282 | fepriv->state = FESTATE_DISEQC; |
2283 | fepriv->status = 0; | |
2284 | } | |
2285 | break; | |
2286 | ||
2287 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
2288 | if (fe->ops.diseqc_send_burst) { |
2289 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
2290 | fepriv->state = FESTATE_DISEQC; |
2291 | fepriv->status = 0; | |
2292 | } | |
2293 | break; | |
2294 | ||
2295 | case FE_SET_TONE: | |
dea74869 PB |
2296 | if (fe->ops.set_tone) { |
2297 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 2298 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
2299 | fepriv->state = FESTATE_DISEQC; |
2300 | fepriv->status = 0; | |
2301 | } | |
2302 | break; | |
2303 | ||
2304 | case FE_SET_VOLTAGE: | |
dea74869 PB |
2305 | if (fe->ops.set_voltage) { |
2306 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 2307 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
2308 | fepriv->state = FESTATE_DISEQC; |
2309 | fepriv->status = 0; | |
2310 | } | |
2311 | break; | |
2312 | ||
2313 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
2314 | if (fe->ops.dishnetwork_send_legacy_command) { |
2315 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
2316 | fepriv->state = FESTATE_DISEQC; |
2317 | fepriv->status = 0; | |
dea74869 | 2318 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2319 | /* |
2320 | * NOTE: This is a fallback condition. Some frontends | |
2321 | * (stv0299 for instance) take longer than 8msec to | |
2322 | * respond to a set_voltage command. Those switches | |
2323 | * need custom routines to switch properly. For all | |
2030c032 | 2324 | * other frontends, the following should work ok. |
83b75b04 N |
2325 | * Dish network legacy switches (as used by Dish500) |
2326 | * are controlled by sending 9-bit command words | |
2327 | * spaced 8msec apart. | |
25985edc | 2328 | * the actual command word is switch/port dependent |
83b75b04 N |
2329 | * so it is up to the userspace application to send |
2330 | * the right command. | |
2331 | * The command must always start with a '0' after | |
2332 | * initialization, so parg is 8 bits and does not | |
2333 | * include the initialization or start bit | |
2334 | */ | |
c6eb8eaf | 2335 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
2336 | struct timeval nexttime; |
2337 | struct timeval tv[10]; | |
2338 | int i; | |
2339 | u8 last = 1; | |
2340 | if (dvb_frontend_debug) | |
c6eb8eaf | 2341 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
2342 | do_gettimeofday(&nexttime); |
2343 | if (dvb_frontend_debug) | |
b9b1b3a8 | 2344 | tv[0] = nexttime; |
83b75b04 N |
2345 | /* before sending a command, initialize by sending |
2346 | * a 32ms 18V to the switch | |
2347 | */ | |
dea74869 | 2348 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2349 | dvb_frontend_sleep_until(&nexttime, 32000); |
2350 | ||
2351 | for (i = 0; i < 9; i++) { | |
2352 | if (dvb_frontend_debug) | |
2353 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 2354 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2355 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2356 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2357 | last = (last) ? 0 : 1; |
2358 | } | |
c6eb8eaf | 2359 | swcmd = swcmd >> 1; |
83b75b04 N |
2360 | if (i != 8) |
2361 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2362 | } | |
2363 | if (dvb_frontend_debug) { | |
2364 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 2365 | __func__, fe->dvb->num); |
83b75b04 N |
2366 | for (i = 1; i < 10; i++) |
2367 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
2368 | } | |
2369 | err = 0; | |
2370 | fepriv->state = FESTATE_DISEQC; | |
2371 | fepriv->status = 0; | |
1da177e4 LT |
2372 | } |
2373 | break; | |
2374 | ||
2375 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2376 | if (fe->ops.diseqc_recv_slave_reply) |
2377 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2378 | break; |
2379 | ||
2380 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2381 | if (fe->ops.enable_high_lnb_voltage) |
2382 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2383 | break; |
2384 | ||
9682cea2 | 2385 | case FE_SET_FRONTEND: |
be431b16 | 2386 | err = dvbv3_set_delivery_system(fe); |
04be0f76 MCC |
2387 | if (err) |
2388 | break; | |
2389 | ||
e399ce77 | 2390 | err = dtv_property_cache_sync(fe, c, parg); |
5bfaadde MCC |
2391 | if (err) |
2392 | break; | |
2393 | err = dtv_set_frontend(fe); | |
1da177e4 | 2394 | break; |
1da177e4 LT |
2395 | case FE_GET_EVENT: |
2396 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2397 | break; | |
2398 | ||
2399 | case FE_GET_FRONTEND: | |
e399ce77 | 2400 | err = dtv_get_frontend(fe, parg); |
1da177e4 | 2401 | break; |
36cb557a AQ |
2402 | |
2403 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 2404 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2405 | err = 0; |
36cb557a | 2406 | break; |
c2c1b415 | 2407 | } |
1da177e4 | 2408 | |
1da177e4 LT |
2409 | return err; |
2410 | } | |
2411 | ||
6b73eeaf | 2412 | |
1da177e4 LT |
2413 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2414 | { | |
2415 | struct dvb_device *dvbdev = file->private_data; | |
2416 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2417 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2418 | |
36bdbc3f | 2419 | dev_dbg_ratelimited(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
2420 | |
2421 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2422 | ||
2423 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2424 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2425 | ||
2426 | return 0; | |
2427 | } | |
2428 | ||
2429 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2430 | { | |
2431 | struct dvb_device *dvbdev = file->private_data; | |
2432 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2433 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2434 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2435 | int ret; |
2436 | ||
36bdbc3f | 2437 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
18ed2860 | 2438 | if (fe->exit == DVB_FE_DEVICE_REMOVED) |
e36309f5 | 2439 | return -ENODEV; |
1da177e4 | 2440 | |
59b1842d DB |
2441 | if (adapter->mfe_shared) { |
2442 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2443 | |
2444 | if (adapter->mfe_dvbdev == NULL) | |
2445 | adapter->mfe_dvbdev = dvbdev; | |
2446 | ||
2447 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2448 | struct dvb_device | |
2449 | *mfedev = adapter->mfe_dvbdev; | |
2450 | struct dvb_frontend | |
2451 | *mfe = mfedev->priv; | |
2452 | struct dvb_frontend_private | |
2453 | *mfepriv = mfe->frontend_priv; | |
2454 | int mferetry = (dvb_mfe_wait_time << 1); | |
2455 | ||
2456 | mutex_unlock (&adapter->mfe_lock); | |
2457 | while (mferetry-- && (mfedev->users != -1 || | |
2458 | mfepriv->thread != NULL)) { | |
2459 | if(msleep_interruptible(500)) { | |
2460 | if(signal_pending(current)) | |
2461 | return -EINTR; | |
59b1842d | 2462 | } |
6594690b DB |
2463 | } |
2464 | ||
2465 | mutex_lock (&adapter->mfe_lock); | |
2466 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2467 | mfedev = adapter->mfe_dvbdev; |
2468 | mfe = mfedev->priv; | |
2469 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2470 | if (mfedev->users != -1 || |
2471 | mfepriv->thread != NULL) { | |
2472 | mutex_unlock (&adapter->mfe_lock); | |
2473 | return -EBUSY; | |
59b1842d | 2474 | } |
6594690b | 2475 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2476 | } |
59b1842d DB |
2477 | } |
2478 | } | |
2479 | ||
48136e1e OE |
2480 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2481 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2482 | goto err0; |
2d196931 DH |
2483 | |
2484 | /* If we took control of the bus, we need to force | |
2485 | reinitialization. This is because many ts_bus_ctrl() | |
2486 | functions strobe the RESET pin on the demod, and if the | |
2487 | frontend thread already exists then the dvb_init() routine | |
2488 | won't get called (which is what usually does initial | |
2489 | register configuration). */ | |
2490 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2491 | } |
2492 | ||
48136e1e OE |
2493 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2494 | goto err1; | |
04c56d0e | 2495 | |
48136e1e | 2496 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2497 | /* normal tune mode when opened R/W */ |
2498 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2499 | fepriv->tone = -1; | |
2500 | fepriv->voltage = -1; | |
2501 | ||
1da177e4 LT |
2502 | ret = dvb_frontend_start (fe); |
2503 | if (ret) | |
48136e1e | 2504 | goto err2; |
1da177e4 LT |
2505 | |
2506 | /* empty event queue */ | |
2507 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2508 | } | |
2509 | ||
59b1842d DB |
2510 | if (adapter->mfe_shared) |
2511 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2512 | return ret; |
48136e1e OE |
2513 | |
2514 | err2: | |
2515 | dvb_generic_release(inode, file); | |
2516 | err1: | |
2517 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2518 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2519 | err0: |
2520 | if (adapter->mfe_shared) | |
2521 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2522 | return ret; |
1da177e4 LT |
2523 | } |
2524 | ||
2525 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2526 | { | |
2527 | struct dvb_device *dvbdev = file->private_data; | |
2528 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2529 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2530 | int ret; |
1da177e4 | 2531 | |
36bdbc3f | 2532 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2533 | |
b9d5efcc | 2534 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2535 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2536 | mb(); |
2537 | } | |
1da177e4 | 2538 | |
ca5be9cd MR |
2539 | ret = dvb_generic_release (inode, file); |
2540 | ||
48136e1e | 2541 | if (dvbdev->users == -1) { |
b9d5efcc | 2542 | wake_up(&fepriv->wait_queue); |
18ed2860 | 2543 | if (fe->exit != DVB_FE_NO_EXIT) |
48136e1e | 2544 | wake_up(&dvbdev->wait_queue); |
48136e1e OE |
2545 | if (fe->ops.ts_bus_ctrl) |
2546 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2547 | } |
48136e1e | 2548 | |
ca5be9cd | 2549 | return ret; |
1da177e4 LT |
2550 | } |
2551 | ||
784e29d2 | 2552 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2553 | .owner = THIS_MODULE, |
16ef8def | 2554 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2555 | .poll = dvb_frontend_poll, |
2556 | .open = dvb_frontend_open, | |
6038f373 AB |
2557 | .release = dvb_frontend_release, |
2558 | .llseek = noop_llseek, | |
1da177e4 LT |
2559 | }; |
2560 | ||
06bae122 AP |
2561 | int dvb_frontend_suspend(struct dvb_frontend *fe) |
2562 | { | |
2563 | int ret = 0; | |
2564 | ||
2565 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2566 | fe->id); | |
2567 | ||
59d7889a MCC |
2568 | if (fe->ops.tuner_ops.suspend) |
2569 | ret = fe->ops.tuner_ops.suspend(fe); | |
2570 | else if (fe->ops.tuner_ops.sleep) | |
06bae122 AP |
2571 | ret = fe->ops.tuner_ops.sleep(fe); |
2572 | ||
2573 | if (fe->ops.sleep) | |
2574 | ret = fe->ops.sleep(fe); | |
2575 | ||
2576 | return ret; | |
2577 | } | |
2578 | EXPORT_SYMBOL(dvb_frontend_suspend); | |
2579 | ||
2580 | int dvb_frontend_resume(struct dvb_frontend *fe) | |
2581 | { | |
2582 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
2583 | int ret = 0; | |
2584 | ||
2585 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2586 | fe->id); | |
2587 | ||
87cd0fa8 | 2588 | fe->exit = DVB_FE_DEVICE_RESUME; |
06bae122 AP |
2589 | if (fe->ops.init) |
2590 | ret = fe->ops.init(fe); | |
2591 | ||
59d7889a MCC |
2592 | if (fe->ops.tuner_ops.resume) |
2593 | ret = fe->ops.tuner_ops.resume(fe); | |
2594 | else if (fe->ops.tuner_ops.init) | |
06bae122 AP |
2595 | ret = fe->ops.tuner_ops.init(fe); |
2596 | ||
87cd0fa8 | 2597 | fe->exit = DVB_FE_NO_EXIT; |
06bae122 AP |
2598 | fepriv->state = FESTATE_RETUNE; |
2599 | dvb_frontend_wakeup(fe); | |
2600 | ||
2601 | return ret; | |
2602 | } | |
2603 | EXPORT_SYMBOL(dvb_frontend_resume); | |
2604 | ||
1da177e4 LT |
2605 | int dvb_register_frontend(struct dvb_adapter* dvb, |
2606 | struct dvb_frontend* fe) | |
2607 | { | |
2608 | struct dvb_frontend_private *fepriv; | |
2609 | static const struct dvb_device dvbdev_template = { | |
2610 | .users = ~0, | |
2611 | .writers = 1, | |
2612 | .readers = (~0)-1, | |
2613 | .fops = &dvb_frontend_fops, | |
2614 | .kernel_ioctl = dvb_frontend_ioctl | |
2615 | }; | |
2616 | ||
36bdbc3f | 2617 | dev_dbg(dvb->device, "%s:\n", __func__); |
1da177e4 | 2618 | |
3593cab5 | 2619 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2620 | return -ERESTARTSYS; |
2621 | ||
7408187d | 2622 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2623 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2624 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2625 | return -ENOMEM; |
2626 | } | |
0c53c70f | 2627 | fepriv = fe->frontend_priv; |
1da177e4 | 2628 | |
a0a4714c | 2629 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2630 | init_waitqueue_head (&fepriv->wait_queue); |
2631 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2632 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2633 | fe->dvb = dvb; |
2634 | fepriv->inversion = INVERSION_OFF; | |
2635 | ||
36bdbc3f AP |
2636 | dev_info(fe->dvb->device, |
2637 | "DVB: registering adapter %i frontend %i (%s)...\n", | |
2638 | fe->dvb->num, fe->id, fe->ops.info.name); | |
1da177e4 LT |
2639 | |
2640 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2641 | fe, DVB_DEVICE_FRONTEND); | |
2642 | ||
5bfaadde MCC |
2643 | /* |
2644 | * Initialize the cache to the proper values according with the | |
2645 | * first supported delivery system (ops->delsys[0]) | |
2646 | */ | |
240ab508 | 2647 | |
be431b16 | 2648 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; |
5bfaadde MCC |
2649 | dvb_frontend_clear_cache(fe); |
2650 | ||
3593cab5 | 2651 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2652 | return 0; |
2653 | } | |
2654 | EXPORT_SYMBOL(dvb_register_frontend); | |
2655 | ||
2656 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2657 | { | |
0c53c70f | 2658 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
36bdbc3f | 2659 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2660 | |
57861b43 | 2661 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2662 | dvb_frontend_stop (fe); |
57861b43 MR |
2663 | mutex_unlock(&frontend_mutex); |
2664 | ||
2665 | if (fepriv->dvbdev->users < -1) | |
2666 | wait_event(fepriv->dvbdev->wait_queue, | |
2667 | fepriv->dvbdev->users==-1); | |
2668 | ||
3593cab5 | 2669 | mutex_lock(&frontend_mutex); |
1da177e4 | 2670 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2671 | |
1da177e4 LT |
2672 | /* fe is invalid now */ |
2673 | kfree(fepriv); | |
3593cab5 | 2674 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2675 | return 0; |
2676 | } | |
2677 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2678 | |
149ef72d | 2679 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2680 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2681 | { | |
2682 | void *ptr; | |
2683 | ||
2684 | if (fe->ops.release_sec) { | |
2685 | fe->ops.release_sec(fe); | |
4647f487 | 2686 | dvb_detach(fe->ops.release_sec); |
f52a838b AQ |
2687 | } |
2688 | if (fe->ops.tuner_ops.release) { | |
2689 | fe->ops.tuner_ops.release(fe); | |
4647f487 | 2690 | dvb_detach(fe->ops.tuner_ops.release); |
f52a838b | 2691 | } |
2426a27e MK |
2692 | if (fe->ops.analog_ops.release) { |
2693 | fe->ops.analog_ops.release(fe); | |
4647f487 | 2694 | dvb_detach(fe->ops.analog_ops.release); |
2426a27e | 2695 | } |
f52a838b AQ |
2696 | ptr = (void*)fe->ops.release; |
2697 | if (ptr) { | |
2698 | fe->ops.release(fe); | |
4647f487 | 2699 | dvb_detach(ptr); |
f52a838b AQ |
2700 | } |
2701 | } | |
2702 | #else | |
2703 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2704 | { | |
2705 | if (fe->ops.release_sec) | |
2706 | fe->ops.release_sec(fe); | |
2707 | if (fe->ops.tuner_ops.release) | |
2708 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2709 | if (fe->ops.analog_ops.release) |
2710 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2711 | if (fe->ops.release) |
2712 | fe->ops.release(fe); | |
2713 | } | |
2714 | #endif | |
2715 | EXPORT_SYMBOL(dvb_frontend_detach); |