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 | ||
e36309f5 MC |
99 | #define DVB_FE_NO_EXIT 0 |
100 | #define DVB_FE_NORMAL_EXIT 1 | |
101 | #define DVB_FE_DEVICE_REMOVED 2 | |
102 | ||
3593cab5 | 103 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
104 | |
105 | struct dvb_frontend_private { | |
106 | ||
36cb557a | 107 | /* thread/frontend values */ |
1da177e4 | 108 | struct dvb_device *dvbdev; |
a5959dbe | 109 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
110 | struct dvb_fe_events events; |
111 | struct semaphore sem; | |
112 | struct list_head list_head; | |
113 | wait_queue_head_t wait_queue; | |
8eec1429 | 114 | struct task_struct *thread; |
1da177e4 | 115 | unsigned long release_jiffies; |
36cb557a AQ |
116 | unsigned int exit; |
117 | unsigned int wakeup; | |
1da177e4 | 118 | fe_status_t status; |
400b7083 | 119 | unsigned long tune_mode_flags; |
36cb557a | 120 | unsigned int delay; |
86f40cc3 | 121 | unsigned int reinitialise; |
64454016 AQ |
122 | int tone; |
123 | int voltage; | |
36cb557a AQ |
124 | |
125 | /* swzigzag values */ | |
126 | unsigned int state; | |
127 | unsigned int bending; | |
128 | int lnb_drift; | |
129 | unsigned int inversion; | |
130 | unsigned int auto_step; | |
131 | unsigned int auto_sub_step; | |
132 | unsigned int started_auto_step; | |
133 | unsigned int min_delay; | |
134 | unsigned int max_drift; | |
135 | unsigned int step_size; | |
136 | int quality; | |
137 | unsigned int check_wrapped; | |
c59e7870 | 138 | enum dvbfe_search algo_status; |
1da177e4 LT |
139 | }; |
140 | ||
86f40cc3 | 141 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 142 | static int dtv_get_frontend(struct dvb_frontend *fe, |
a689e365 | 143 | struct dvb_frontend_parameters *p_out); |
556a0442 CR |
144 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
145 | struct dvb_frontend_parameters *p); | |
a689e365 MCC |
146 | |
147 | static bool has_get_frontend(struct dvb_frontend *fe) | |
148 | { | |
c065f5b4 | 149 | return fe->ops.get_frontend != NULL; |
a689e365 | 150 | } |
1da177e4 | 151 | |
5bfaadde MCC |
152 | /* |
153 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
154 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
155 | * otherwise, a DVBv3 call will fail. | |
156 | */ | |
157 | enum dvbv3_emulation_type { | |
158 | DVBV3_UNKNOWN, | |
159 | DVBV3_QPSK, | |
160 | DVBV3_QAM, | |
161 | DVBV3_OFDM, | |
162 | DVBV3_ATSC, | |
163 | }; | |
164 | ||
165 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
166 | { | |
167 | switch (delivery_system) { | |
168 | case SYS_DVBC_ANNEX_A: | |
169 | case SYS_DVBC_ANNEX_C: | |
170 | return DVBV3_QAM; | |
171 | case SYS_DVBS: | |
172 | case SYS_DVBS2: | |
173 | case SYS_TURBO: | |
174 | case SYS_ISDBS: | |
175 | case SYS_DSS: | |
176 | return DVBV3_QPSK; | |
177 | case SYS_DVBT: | |
178 | case SYS_DVBT2: | |
179 | case SYS_ISDBT: | |
224b6642 | 180 | case SYS_DTMB: |
5bfaadde MCC |
181 | return DVBV3_OFDM; |
182 | case SYS_ATSC: | |
ca689488 | 183 | case SYS_ATSCMH: |
5bfaadde MCC |
184 | case SYS_DVBC_ANNEX_B: |
185 | return DVBV3_ATSC; | |
186 | case SYS_UNDEFINED: | |
187 | case SYS_ISDBC: | |
188 | case SYS_DVBH: | |
189 | case SYS_DAB: | |
5bfaadde MCC |
190 | default: |
191 | /* | |
192 | * Doesn't know how to emulate those types and/or | |
193 | * there's no frontend driver from this type yet | |
194 | * with some emulation code, so, we're not sure yet how | |
195 | * to handle them, or they're not compatible with a DVBv3 call. | |
196 | */ | |
197 | return DVBV3_UNKNOWN; | |
198 | } | |
199 | } | |
200 | ||
1da177e4 LT |
201 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
202 | { | |
0c53c70f | 203 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
204 | struct dvb_fe_events *events = &fepriv->events; |
205 | struct dvb_frontend_event *e; | |
206 | int wp; | |
207 | ||
36bdbc3f | 208 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 209 | |
a689e365 | 210 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
7c61d80a | 211 | dtv_get_frontend(fe, &fepriv->parameters_out); |
1da177e4 | 212 | |
77b1e2fb | 213 | mutex_lock(&events->mtx); |
1da177e4 | 214 | |
77b1e2fb | 215 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
216 | if (wp == events->eventr) { |
217 | events->overflow = 1; | |
218 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
219 | } | |
220 | ||
221 | e = &events->events[events->eventw]; | |
77b1e2fb | 222 | e->status = status; |
a5959dbe | 223 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
224 | |
225 | events->eventw = wp; | |
226 | ||
03b76123 | 227 | mutex_unlock(&events->mtx); |
1da177e4 | 228 | |
1da177e4 LT |
229 | wake_up_interruptible (&events->wait_queue); |
230 | } | |
231 | ||
232 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
233 | struct dvb_frontend_event *event, int flags) | |
234 | { | |
0c53c70f | 235 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
236 | struct dvb_fe_events *events = &fepriv->events; |
237 | ||
36bdbc3f | 238 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
239 | |
240 | if (events->overflow) { | |
241 | events->overflow = 0; | |
242 | return -EOVERFLOW; | |
243 | } | |
244 | ||
245 | if (events->eventw == events->eventr) { | |
246 | int ret; | |
247 | ||
248 | if (flags & O_NONBLOCK) | |
249 | return -EWOULDBLOCK; | |
250 | ||
251 | up(&fepriv->sem); | |
252 | ||
253 | ret = wait_event_interruptible (events->wait_queue, | |
254 | events->eventw != events->eventr); | |
255 | ||
256 | if (down_interruptible (&fepriv->sem)) | |
257 | return -ERESTARTSYS; | |
258 | ||
259 | if (ret < 0) | |
260 | return ret; | |
261 | } | |
262 | ||
77b1e2fb AO |
263 | mutex_lock(&events->mtx); |
264 | *event = events->events[events->eventr]; | |
1da177e4 | 265 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 266 | mutex_unlock(&events->mtx); |
1da177e4 LT |
267 | |
268 | return 0; | |
269 | } | |
270 | ||
20640bea AO |
271 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
272 | { | |
273 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
274 | struct dvb_fe_events *events = &fepriv->events; | |
275 | ||
276 | mutex_lock(&events->mtx); | |
277 | events->eventr = events->eventw; | |
278 | mutex_unlock(&events->mtx); | |
279 | } | |
280 | ||
1da177e4 LT |
281 | static void dvb_frontend_init(struct dvb_frontend *fe) |
282 | { | |
36bdbc3f AP |
283 | dev_dbg(fe->dvb->device, |
284 | "%s: initialising adapter %i frontend %i (%s)...\n", | |
285 | __func__, fe->dvb->num, fe->id, fe->ops.info.name); | |
dea74869 PB |
286 | |
287 | if (fe->ops.init) | |
288 | fe->ops.init(fe); | |
289 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
290 | if (fe->ops.i2c_gate_ctrl) |
291 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
292 | fe->ops.tuner_ops.init(fe); |
293 | if (fe->ops.i2c_gate_ctrl) | |
294 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 295 | } |
1da177e4 LT |
296 | } |
297 | ||
86f40cc3 AQ |
298 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
299 | { | |
300 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
301 | ||
302 | fepriv->reinitialise = 1; | |
303 | dvb_frontend_wakeup(fe); | |
304 | } | |
305 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
306 | ||
36cb557a | 307 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 308 | { |
36cb557a | 309 | int q2; |
36bdbc3f | 310 | struct dvb_frontend *fe = fepriv->dvbdev->priv; |
1da177e4 | 311 | |
36bdbc3f | 312 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 313 | |
36cb557a AQ |
314 | if (locked) |
315 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
316 | else | |
317 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 318 | |
36cb557a AQ |
319 | q2 = fepriv->quality - 128; |
320 | q2 *= q2; | |
1da177e4 | 321 | |
36cb557a | 322 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
323 | } |
324 | ||
325 | /** | |
326 | * Performs automatic twiddling of frontend parameters. | |
327 | * | |
328 | * @param fe The frontend concerned. | |
329 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
330 | * @returns Number of complete iterations that have been performed. | |
331 | */ | |
36cb557a | 332 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
333 | { |
334 | int autoinversion; | |
335 | int ready = 0; | |
01886255 | 336 | int fe_set_err = 0; |
0c53c70f | 337 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
338 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
339 | int original_inversion = c->inversion; | |
340 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
341 | |
342 | /* are we using autoinversion? */ | |
dea74869 | 343 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 344 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
345 | |
346 | /* setup parameters correctly */ | |
347 | while(!ready) { | |
348 | /* calculate the lnb_drift */ | |
349 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
350 | ||
351 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
352 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
353 | fepriv->auto_step = 0; | |
354 | fepriv->auto_sub_step = 0; | |
355 | fepriv->lnb_drift = 0; | |
356 | } | |
357 | ||
358 | /* perform inversion and +/- zigzag */ | |
359 | switch(fepriv->auto_sub_step) { | |
360 | case 0: | |
361 | /* try with the current inversion and current drift setting */ | |
362 | ready = 1; | |
363 | break; | |
364 | ||
365 | case 1: | |
366 | if (!autoinversion) break; | |
367 | ||
368 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
369 | ready = 1; | |
370 | break; | |
371 | ||
372 | case 2: | |
373 | if (fepriv->lnb_drift == 0) break; | |
374 | ||
375 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
376 | ready = 1; | |
377 | break; | |
378 | ||
379 | case 3: | |
380 | if (fepriv->lnb_drift == 0) break; | |
381 | if (!autoinversion) break; | |
382 | ||
383 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
384 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
385 | ready = 1; | |
386 | break; | |
387 | ||
388 | default: | |
389 | fepriv->auto_step++; | |
390 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
391 | break; | |
392 | } | |
393 | ||
394 | if (!ready) fepriv->auto_sub_step++; | |
395 | } | |
396 | ||
397 | /* if this attempt would hit where we started, indicate a complete | |
398 | * iteration has occurred */ | |
399 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
400 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
401 | return 1; | |
402 | } | |
403 | ||
36bdbc3f AP |
404 | dev_dbg(fe->dvb->device, "%s: drift:%i inversion:%i auto_step:%i " \ |
405 | "auto_sub_step:%i started_auto_step:%i\n", | |
406 | __func__, fepriv->lnb_drift, fepriv->inversion, | |
407 | fepriv->auto_step, fepriv->auto_sub_step, | |
408 | fepriv->started_auto_step); | |
1da177e4 LT |
409 | |
410 | /* set the frontend itself */ | |
ac3852c4 | 411 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 412 | if (autoinversion) |
ac3852c4 MCC |
413 | c->inversion = fepriv->inversion; |
414 | tmp = *c; | |
dea74869 | 415 | if (fe->ops.set_frontend) |
bc9cd273 | 416 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 417 | *c = tmp; |
01886255 JG |
418 | if (fe_set_err < 0) { |
419 | fepriv->state = FESTATE_ERROR; | |
420 | return fe_set_err; | |
421 | } | |
1da177e4 | 422 | |
ac3852c4 MCC |
423 | c->frequency = original_frequency; |
424 | c->inversion = original_inversion; | |
1da177e4 LT |
425 | |
426 | fepriv->auto_sub_step++; | |
427 | return 0; | |
428 | } | |
429 | ||
36cb557a AQ |
430 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
431 | { | |
30d9464c | 432 | fe_status_t s = 0; |
01886255 | 433 | int retval = 0; |
36cb557a | 434 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 435 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
436 | |
437 | /* if we've got no parameters, just keep idling */ | |
438 | if (fepriv->state & FESTATE_IDLE) { | |
439 | fepriv->delay = 3*HZ; | |
440 | fepriv->quality = 0; | |
441 | return; | |
442 | } | |
443 | ||
444 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
445 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
446 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 447 | tmp = *c; |
dea74869 | 448 | if (fe->ops.set_frontend) |
bc9cd273 | 449 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 450 | *c = tmp; |
01886255 JG |
451 | if (retval < 0) |
452 | fepriv->state = FESTATE_ERROR; | |
453 | else | |
454 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
455 | } |
456 | fepriv->delay = 3*HZ; | |
457 | fepriv->quality = 0; | |
458 | return; | |
459 | } | |
460 | ||
461 | /* get the frontend status */ | |
462 | if (fepriv->state & FESTATE_RETUNE) { | |
463 | s = 0; | |
464 | } else { | |
dea74869 PB |
465 | if (fe->ops.read_status) |
466 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
467 | if (s != fepriv->status) { |
468 | dvb_frontend_add_event(fe, s); | |
469 | fepriv->status = s; | |
470 | } | |
471 | } | |
472 | ||
473 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
474 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
475 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
476 | fepriv->state = FESTATE_TUNED; | |
477 | ||
478 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 479 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
480 | (c->inversion == INVERSION_AUTO)) { |
481 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
482 | } |
483 | return; | |
484 | } | |
485 | ||
486 | /* if we are tuned already, check we're still locked */ | |
487 | if (fepriv->state & FESTATE_TUNED) { | |
488 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
489 | ||
490 | /* we're tuned, and the lock is still good... */ | |
491 | if (s & FE_HAS_LOCK) { | |
492 | return; | |
493 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
494 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
495 | fepriv->started_auto_step = fepriv->auto_step; | |
496 | fepriv->check_wrapped = 0; | |
497 | } | |
498 | } | |
499 | ||
500 | /* don't actually do anything if we're in the LOSTLOCK state, | |
501 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
502 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 503 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
504 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
505 | return; | |
506 | } | |
507 | ||
508 | /* don't do anything if we're in the DISEQC state, since this | |
509 | * might be someone with a motorized dish controlled by DISEQC. | |
510 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
511 | if (fepriv->state & FESTATE_DISEQC) { | |
512 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
513 | return; | |
514 | } | |
515 | ||
516 | /* if we're in the RETUNE state, set everything up for a brand | |
517 | * new scan, keeping the current inversion setting, as the next | |
518 | * tune is _very_ likely to require the same */ | |
519 | if (fepriv->state & FESTATE_RETUNE) { | |
520 | fepriv->lnb_drift = 0; | |
521 | fepriv->auto_step = 0; | |
522 | fepriv->auto_sub_step = 0; | |
523 | fepriv->started_auto_step = 0; | |
524 | fepriv->check_wrapped = 0; | |
525 | } | |
526 | ||
527 | /* fast zigzag. */ | |
528 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
529 | fepriv->delay = fepriv->min_delay; | |
530 | ||
2030c032 | 531 | /* perform a tune */ |
01886255 JG |
532 | retval = dvb_frontend_swzigzag_autotune(fe, |
533 | fepriv->check_wrapped); | |
534 | if (retval < 0) { | |
535 | return; | |
536 | } else if (retval) { | |
36cb557a AQ |
537 | /* OK, if we've run out of trials at the fast speed. |
538 | * Drop back to slow for the _next_ attempt */ | |
539 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
540 | fepriv->started_auto_step = fepriv->auto_step; | |
541 | return; | |
542 | } | |
543 | fepriv->check_wrapped = 1; | |
544 | ||
545 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
546 | * This ensures we cannot return from an | |
547 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
548 | * occurs */ | |
549 | if (fepriv->state & FESTATE_RETUNE) { | |
550 | fepriv->state = FESTATE_TUNING_FAST; | |
551 | } | |
552 | } | |
553 | ||
554 | /* slow zigzag */ | |
555 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
556 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
557 | ||
558 | /* Note: don't bother checking for wrapping; we stay in this | |
559 | * state until we get a lock */ | |
560 | dvb_frontend_swzigzag_autotune(fe, 0); | |
561 | } | |
562 | } | |
563 | ||
1da177e4 LT |
564 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
565 | { | |
0c53c70f | 566 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 567 | |
e36309f5 | 568 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
569 | return 1; |
570 | ||
571 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 572 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 573 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
574 | return 1; |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
579 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
580 | { | |
0c53c70f | 581 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
582 | |
583 | if (fepriv->wakeup) { | |
584 | fepriv->wakeup = 0; | |
585 | return 1; | |
586 | } | |
587 | return dvb_frontend_is_exiting(fe); | |
588 | } | |
589 | ||
590 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
591 | { | |
0c53c70f | 592 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
593 | |
594 | fepriv->wakeup = 1; | |
595 | wake_up_interruptible(&fepriv->wait_queue); | |
596 | } | |
597 | ||
1da177e4 LT |
598 | static int dvb_frontend_thread(void *data) |
599 | { | |
0c53c70f JS |
600 | struct dvb_frontend *fe = data; |
601 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 602 | fe_status_t s; |
c59e7870 MA |
603 | enum dvbfe_algo algo; |
604 | ||
7e072221 | 605 | bool re_tune = false; |
6ae23224 | 606 | bool semheld = false; |
1da177e4 | 607 | |
36bdbc3f | 608 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 609 | |
36cb557a AQ |
610 | fepriv->check_wrapped = 0; |
611 | fepriv->quality = 0; | |
612 | fepriv->delay = 3*HZ; | |
1da177e4 | 613 | fepriv->status = 0; |
1da177e4 | 614 | fepriv->wakeup = 0; |
04c56d0e AQ |
615 | fepriv->reinitialise = 0; |
616 | ||
617 | dvb_frontend_init(fe); | |
1da177e4 | 618 | |
83144186 | 619 | set_freezable(); |
1da177e4 LT |
620 | while (1) { |
621 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 622 | restart: |
94238e9b | 623 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
624 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
625 | || freezing(current), | |
8eec1429 HP |
626 | fepriv->delay); |
627 | ||
628 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 629 | /* got signal or quitting */ |
6ae23224 JL |
630 | if (!down_interruptible(&fepriv->sem)) |
631 | semheld = true; | |
e36309f5 | 632 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
633 | break; |
634 | } | |
635 | ||
8eec1429 | 636 | if (try_to_freeze()) |
6591691b | 637 | goto restart; |
1da177e4 LT |
638 | |
639 | if (down_interruptible(&fepriv->sem)) | |
640 | break; | |
641 | ||
86f40cc3 AQ |
642 | if (fepriv->reinitialise) { |
643 | dvb_frontend_init(fe); | |
42f4e774 | 644 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 645 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 646 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 647 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
648 | fepriv->reinitialise = 0; |
649 | } | |
650 | ||
36cb557a | 651 | /* do an iteration of the tuning loop */ |
d772bd03 | 652 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
653 | algo = fe->ops.get_frontend_algo(fe); |
654 | switch (algo) { | |
655 | case DVBFE_ALGO_HW: | |
36bdbc3f | 656 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); |
c59e7870 | 657 | |
d772bd03 | 658 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 659 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 660 | re_tune = true; |
d772bd03 | 661 | fepriv->state = FESTATE_TUNED; |
45145b67 SA |
662 | } else { |
663 | re_tune = false; | |
d772bd03 MA |
664 | } |
665 | ||
c59e7870 | 666 | if (fe->ops.tune) |
7e072221 | 667 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 668 | |
2fac9a0f | 669 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
36bdbc3f | 670 | dev_dbg(fe->dvb->device, "%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
671 | dvb_frontend_add_event(fe, s); |
672 | fepriv->status = s; | |
673 | } | |
c59e7870 MA |
674 | break; |
675 | case DVBFE_ALGO_SW: | |
36bdbc3f | 676 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); |
70d90635 | 677 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
678 | break; |
679 | case DVBFE_ALGO_CUSTOM: | |
36bdbc3f | 680 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
c59e7870 | 681 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 682 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTAT_RETUNE\n", __func__); |
c59e7870 MA |
683 | fepriv->state = FESTATE_TUNED; |
684 | } | |
685 | /* Case where we are going to search for a carrier | |
686 | * User asked us to retune again for some reason, possibly | |
687 | * requesting a search with a new set of parameters | |
688 | */ | |
689 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 690 | if (fe->ops.search) { |
41da5320 | 691 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
692 | /* We did do a search as was requested, the flags are |
693 | * now unset as well and has the flags wrt to search. | |
694 | */ | |
7bcbdf38 AJ |
695 | } else { |
696 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
697 | } | |
c59e7870 MA |
698 | } |
699 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 700 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
701 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
702 | fepriv->delay = HZ / 2; | |
703 | } | |
556a0442 | 704 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); |
7bcbdf38 AJ |
705 | fe->ops.read_status(fe, &s); |
706 | if (s != fepriv->status) { | |
707 | dvb_frontend_add_event(fe, s); /* update event list */ | |
708 | fepriv->status = s; | |
709 | if (!(s & FE_HAS_LOCK)) { | |
710 | fepriv->delay = HZ / 10; | |
711 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
712 | } else { | |
713 | fepriv->delay = 60 * HZ; | |
714 | } | |
c59e7870 MA |
715 | } |
716 | break; | |
717 | default: | |
36bdbc3f | 718 | dev_dbg(fe->dvb->device, "%s: UNDEFINED ALGO !\n", __func__); |
c59e7870 MA |
719 | break; |
720 | } | |
721 | } else { | |
4a4edcca | 722 | dvb_frontend_swzigzag(fe); |
c59e7870 | 723 | } |
1da177e4 LT |
724 | } |
725 | ||
608f62d6 OE |
726 | if (dvb_powerdown_on_sleep) { |
727 | if (fe->ops.set_voltage) | |
728 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 729 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
730 | if (fe->ops.i2c_gate_ctrl) |
731 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
732 | fe->ops.tuner_ops.sleep(fe); |
733 | if (fe->ops.i2c_gate_ctrl) | |
734 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 735 | } |
dea74869 PB |
736 | if (fe->ops.sleep) |
737 | fe->ops.sleep(fe); | |
1da177e4 LT |
738 | } |
739 | ||
8eec1429 | 740 | fepriv->thread = NULL; |
e36309f5 MC |
741 | if (kthread_should_stop()) |
742 | fepriv->exit = DVB_FE_DEVICE_REMOVED; | |
743 | else | |
744 | fepriv->exit = DVB_FE_NO_EXIT; | |
1da177e4 LT |
745 | mb(); |
746 | ||
6ae23224 JL |
747 | if (semheld) |
748 | up(&fepriv->sem); | |
1da177e4 LT |
749 | dvb_frontend_wakeup(fe); |
750 | return 0; | |
751 | } | |
752 | ||
753 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
754 | { | |
0c53c70f | 755 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 756 | |
36bdbc3f | 757 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 758 | |
e36309f5 | 759 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
760 | mb(); |
761 | ||
8eec1429 | 762 | if (!fepriv->thread) |
1da177e4 LT |
763 | return; |
764 | ||
8eec1429 | 765 | kthread_stop(fepriv->thread); |
ca5be9cd | 766 | |
a0a4714c | 767 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
768 | fepriv->state = FESTATE_IDLE; |
769 | ||
770 | /* paranoia check in case a signal arrived */ | |
8eec1429 | 771 | if (fepriv->thread) |
36bdbc3f AP |
772 | dev_warn(fe->dvb->device, |
773 | "dvb_frontend_stop: warning: thread %p won't exit\n", | |
8eec1429 | 774 | fepriv->thread); |
1da177e4 LT |
775 | } |
776 | ||
83b75b04 N |
777 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
778 | { | |
779 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
780 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
781 | curtime.tv_usec - lasttime.tv_usec); | |
782 | } | |
783 | EXPORT_SYMBOL(timeval_usec_diff); | |
784 | ||
785 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
786 | { | |
787 | curtime->tv_usec += add_usec; | |
788 | if (curtime->tv_usec >= 1000000) { | |
789 | curtime->tv_usec -= 1000000; | |
790 | curtime->tv_sec++; | |
791 | } | |
792 | } | |
793 | ||
794 | /* | |
795 | * Sleep until gettimeofday() > waketime + add_usec | |
796 | * This needs to be as precise as possible, but as the delay is | |
797 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
798 | * followed by usleep (normally a busy-wait loop) for the remainder | |
799 | */ | |
800 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
801 | { | |
802 | struct timeval lasttime; | |
803 | s32 delta, newdelta; | |
804 | ||
805 | timeval_usec_add(waketime, add_usec); | |
806 | ||
807 | do_gettimeofday(&lasttime); | |
808 | delta = timeval_usec_diff(lasttime, *waketime); | |
809 | if (delta > 2500) { | |
810 | msleep((delta - 1500) / 1000); | |
811 | do_gettimeofday(&lasttime); | |
812 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
813 | delta = (newdelta > delta) ? 0 : newdelta; | |
814 | } | |
815 | if (delta > 0) | |
816 | udelay(delta); | |
817 | } | |
818 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
819 | ||
1da177e4 LT |
820 | static int dvb_frontend_start(struct dvb_frontend *fe) |
821 | { | |
822 | int ret; | |
0c53c70f | 823 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 824 | struct task_struct *fe_thread; |
1da177e4 | 825 | |
36bdbc3f | 826 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 827 | |
8eec1429 | 828 | if (fepriv->thread) { |
e36309f5 | 829 | if (fepriv->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
830 | return 0; |
831 | else | |
832 | dvb_frontend_stop (fe); | |
833 | } | |
834 | ||
835 | if (signal_pending(current)) | |
836 | return -EINTR; | |
837 | if (down_interruptible (&fepriv->sem)) | |
838 | return -EINTR; | |
839 | ||
840 | fepriv->state = FESTATE_IDLE; | |
e36309f5 | 841 | fepriv->exit = DVB_FE_NO_EXIT; |
8eec1429 | 842 | fepriv->thread = NULL; |
1da177e4 LT |
843 | mb(); |
844 | ||
8eec1429 | 845 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 846 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
847 | if (IS_ERR(fe_thread)) { |
848 | ret = PTR_ERR(fe_thread); | |
36bdbc3f AP |
849 | dev_warn(fe->dvb->device, |
850 | "dvb_frontend_start: failed to start kthread (%d)\n", | |
851 | ret); | |
1da177e4 LT |
852 | up(&fepriv->sem); |
853 | return ret; | |
854 | } | |
8eec1429 | 855 | fepriv->thread = fe_thread; |
1da177e4 LT |
856 | return 0; |
857 | } | |
858 | ||
2030c032 | 859 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
860 | u32 *freq_min, u32 *freq_max) |
861 | { | |
862 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
863 | ||
864 | if (fe->ops.info.frequency_max == 0) | |
865 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
866 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
867 | *freq_max = fe->ops.info.frequency_max; | |
868 | else | |
869 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
870 | ||
871 | if (*freq_min == 0 || *freq_max == 0) | |
36bdbc3f AP |
872 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
873 | fe->dvb->num, fe->id); | |
c471b331 OE |
874 | } |
875 | ||
5bfaadde | 876 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 877 | { |
5bfaadde | 878 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
879 | u32 freq_min; |
880 | u32 freq_max; | |
881 | ||
1fab46f0 | 882 | /* range check: frequency */ |
2030c032 | 883 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
884 | if ((freq_min && c->frequency < freq_min) || |
885 | (freq_max && c->frequency > freq_max)) { | |
36bdbc3f AP |
886 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
887 | fe->dvb->num, fe->id, c->frequency, | |
888 | freq_min, freq_max); | |
1fab46f0 OE |
889 | return -EINVAL; |
890 | } | |
891 | ||
892 | /* range check: symbol rate */ | |
5bfaadde MCC |
893 | switch (c->delivery_system) { |
894 | case SYS_DVBS: | |
895 | case SYS_DVBS2: | |
896 | case SYS_TURBO: | |
897 | case SYS_DVBC_ANNEX_A: | |
898 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 899 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 900 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 901 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 902 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
36bdbc3f AP |
903 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
904 | fe->dvb->num, fe->id, c->symbol_rate, | |
905 | fe->ops.info.symbol_rate_min, | |
906 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
907 | return -EINVAL; |
908 | } | |
5bfaadde MCC |
909 | default: |
910 | break; | |
1fab46f0 OE |
911 | } |
912 | ||
913 | return 0; | |
914 | } | |
915 | ||
b6e760f3 PB |
916 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
917 | { | |
50727719 | 918 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 | 919 | int i; |
149709f5 | 920 | u32 delsys; |
b6e760f3 | 921 | |
149709f5 | 922 | delsys = c->delivery_system; |
808d24d6 | 923 | memset(c, 0, offsetof(struct dtv_frontend_properties, strength)); |
149709f5 | 924 | c->delivery_system = delsys; |
50727719 AO |
925 | |
926 | c->state = DTV_CLEAR; | |
26c924fe | 927 | |
36bdbc3f AP |
928 | dev_dbg(fe->dvb->device, "%s: Clearing cache for delivery system %d\n", |
929 | __func__, c->delivery_system); | |
26c924fe | 930 | |
50727719 | 931 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 932 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
933 | c->guard_interval = GUARD_INTERVAL_AUTO; |
934 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 935 | c->symbol_rate = 0; |
50727719 AO |
936 | c->code_rate_HP = FEC_AUTO; |
937 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 938 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 939 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 940 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
941 | c->sectone = SEC_TONE_OFF; |
942 | c->pilot = PILOT_AUTO; | |
50727719 | 943 | |
a520ca97 MCC |
944 | c->isdbt_partial_reception = 0; |
945 | c->isdbt_sb_mode = 0; | |
946 | c->isdbt_sb_subchannel = 0; | |
947 | c->isdbt_sb_segment_idx = 0; | |
948 | c->isdbt_sb_segment_count = 0; | |
949 | c->isdbt_layer_enabled = 0; | |
b6e760f3 | 950 | for (i = 0; i < 3; i++) { |
50727719 AO |
951 | c->layer[i].fec = FEC_AUTO; |
952 | c->layer[i].modulation = QAM_AUTO; | |
a520ca97 MCC |
953 | c->layer[i].interleaving = 0; |
954 | c->layer[i].segment_count = 0; | |
b6e760f3 PB |
955 | } |
956 | ||
287cefd0 | 957 | c->stream_id = NO_STREAM_ID_FILTER; |
26c924fe | 958 | |
5bfaadde MCC |
959 | switch (c->delivery_system) { |
960 | case SYS_DVBS: | |
961 | case SYS_DVBS2: | |
962 | case SYS_TURBO: | |
963 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
964 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
965 | break; | |
966 | case SYS_ATSC: | |
967 | c->modulation = VSB_8; | |
968 | break; | |
969 | default: | |
970 | c->modulation = QAM_AUTO; | |
971 | break; | |
972 | } | |
973 | ||
33eebec5 AP |
974 | c->lna = LNA_AUTO; |
975 | ||
b6e760f3 PB |
976 | return 0; |
977 | } | |
978 | ||
979 | #define _DTV_CMD(n, s, b) \ | |
980 | [n] = { \ | |
981 | .name = #n, \ | |
982 | .cmd = n, \ | |
983 | .set = s,\ | |
984 | .buffer = b \ | |
985 | } | |
986 | ||
ec05a642 | 987 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
988 | _DTV_CMD(DTV_TUNE, 1, 0), |
989 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
990 | |
991 | /* Set */ | |
06d3a396 MCC |
992 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
993 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
994 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
995 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
996 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
997 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
998 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
999 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
1000 | _DTV_CMD(DTV_TONE, 1, 0), | |
1001 | _DTV_CMD(DTV_PILOT, 1, 0), | |
1002 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
1003 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
1004 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
1005 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
1006 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
1007 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
1008 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
224b6642 | 1009 | _DTV_CMD(DTV_INTERLEAVING, 1, 0), |
b6e760f3 PB |
1010 | |
1011 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
1012 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
1013 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1014 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1015 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1016 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1017 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1018 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1019 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1020 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1021 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1022 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1023 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1024 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1025 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1026 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1027 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1028 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1029 | ||
287cefd0 EP |
1030 | _DTV_CMD(DTV_STREAM_ID, 1, 0), |
1031 | _DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0), | |
8a2697ab | 1032 | _DTV_CMD(DTV_LNA, 1, 0), |
98293ef3 | 1033 | |
6b73eeaf | 1034 | /* Get */ |
06d3a396 MCC |
1035 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1036 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
ba2780c7 MA |
1037 | |
1038 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
ca689488 MK |
1039 | |
1040 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 1, 0), | |
1041 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 1, 0), | |
1042 | ||
1043 | _DTV_CMD(DTV_ATSCMH_FIC_VER, 0, 0), | |
ca689488 MK |
1044 | _DTV_CMD(DTV_ATSCMH_NOG, 0, 0), |
1045 | _DTV_CMD(DTV_ATSCMH_TNOG, 0, 0), | |
1046 | _DTV_CMD(DTV_ATSCMH_SGN, 0, 0), | |
1047 | _DTV_CMD(DTV_ATSCMH_PRC, 0, 0), | |
1048 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_MODE, 0, 0), | |
ca689488 MK |
1049 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_PRI, 0, 0), |
1050 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_SEC, 0, 0), | |
1051 | _DTV_CMD(DTV_ATSCMH_SCCC_BLOCK_MODE, 0, 0), | |
1052 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_A, 0, 0), | |
1053 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), | |
1054 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), | |
1055 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), | |
7cd4ece5 MCC |
1056 | |
1057 | /* Statistics API */ | |
1058 | _DTV_CMD(DTV_STAT_SIGNAL_STRENGTH, 0, 0), | |
1059 | _DTV_CMD(DTV_STAT_CNR, 0, 0), | |
1060 | _DTV_CMD(DTV_STAT_PRE_ERROR_BIT_COUNT, 0, 0), | |
1061 | _DTV_CMD(DTV_STAT_PRE_TOTAL_BIT_COUNT, 0, 0), | |
1062 | _DTV_CMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0, 0), | |
1063 | _DTV_CMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0, 0), | |
1064 | _DTV_CMD(DTV_STAT_ERROR_BLOCK_COUNT, 0, 0), | |
1065 | _DTV_CMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0, 0), | |
6b73eeaf ST |
1066 | }; |
1067 | ||
36bdbc3f | 1068 | static void dtv_property_dump(struct dvb_frontend *fe, struct dtv_property *tvp) |
6b73eeaf ST |
1069 | { |
1070 | int i; | |
1071 | ||
106ff9e0 | 1072 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
36bdbc3f AP |
1073 | dev_warn(fe->dvb->device, "%s: tvp.cmd = 0x%08x undefined\n", |
1074 | __func__, tvp->cmd); | |
4aae8efb DB |
1075 | return; |
1076 | } | |
1077 | ||
36bdbc3f AP |
1078 | dev_dbg(fe->dvb->device, "%s: tvp.cmd = 0x%08x (%s)\n", __func__, |
1079 | tvp->cmd, dtv_cmds[tvp->cmd].name); | |
6b73eeaf | 1080 | |
36bdbc3f AP |
1081 | if (dtv_cmds[tvp->cmd].buffer) { |
1082 | dev_dbg(fe->dvb->device, "%s: tvp.u.buffer.len = 0x%02x\n", | |
1083 | __func__, tvp->u.buffer.len); | |
6b73eeaf ST |
1084 | |
1085 | for(i = 0; i < tvp->u.buffer.len; i++) | |
36bdbc3f AP |
1086 | dev_dbg(fe->dvb->device, |
1087 | "%s: tvp.u.buffer.data[0x%02x] = 0x%02x\n", | |
1088 | __func__, i, tvp->u.buffer.data[i]); | |
1089 | } else { | |
1090 | dev_dbg(fe->dvb->device, "%s: tvp.u.data = 0x%08x\n", __func__, | |
1091 | tvp->u.data); | |
1092 | } | |
6b73eeaf ST |
1093 | } |
1094 | ||
ee33c525 ST |
1095 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1096 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1097 | * it's being used for the legacy or new API, reducing code and complexity. | |
1098 | */ | |
5bfaadde MCC |
1099 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1100 | struct dtv_frontend_properties *c, | |
1101 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1102 | { |
ee33c525 ST |
1103 | c->frequency = p->frequency; |
1104 | c->inversion = p->inversion; | |
1105 | ||
5bfaadde MCC |
1106 | switch (dvbv3_type(c->delivery_system)) { |
1107 | case DVBV3_QPSK: | |
36bdbc3f | 1108 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
ee33c525 ST |
1109 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1110 | c->fec_inner = p->u.qpsk.fec_inner; | |
1111 | break; | |
5bfaadde | 1112 | case DVBV3_QAM: |
36bdbc3f | 1113 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
ee33c525 ST |
1114 | c->symbol_rate = p->u.qam.symbol_rate; |
1115 | c->fec_inner = p->u.qam.fec_inner; | |
1116 | c->modulation = p->u.qam.modulation; | |
1117 | break; | |
5bfaadde | 1118 | case DVBV3_OFDM: |
36bdbc3f AP |
1119 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
1120 | ||
9a27e6a0 MCC |
1121 | switch (p->u.ofdm.bandwidth) { |
1122 | case BANDWIDTH_10_MHZ: | |
1123 | c->bandwidth_hz = 10000000; | |
1124 | break; | |
1125 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1126 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1127 | break; |
1128 | case BANDWIDTH_7_MHZ: | |
1129 | c->bandwidth_hz = 7000000; | |
1130 | break; | |
1131 | case BANDWIDTH_6_MHZ: | |
1132 | c->bandwidth_hz = 6000000; | |
1133 | break; | |
1134 | case BANDWIDTH_5_MHZ: | |
1135 | c->bandwidth_hz = 5000000; | |
1136 | break; | |
1137 | case BANDWIDTH_1_712_MHZ: | |
1138 | c->bandwidth_hz = 1712000; | |
1139 | break; | |
1140 | case BANDWIDTH_AUTO: | |
75b7f943 | 1141 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1142 | } |
1143 | ||
ee33c525 ST |
1144 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1145 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1146 | c->modulation = p->u.ofdm.constellation; | |
1147 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1148 | c->guard_interval = p->u.ofdm.guard_interval; | |
1149 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1150 | break; | |
5bfaadde | 1151 | case DVBV3_ATSC: |
36bdbc3f | 1152 | dev_dbg(fe->dvb->device, "%s: Preparing ATSC req\n", __func__); |
ee33c525 | 1153 | c->modulation = p->u.vsb.modulation; |
ca689488 MK |
1154 | if (c->delivery_system == SYS_ATSCMH) |
1155 | break; | |
80a773c9 ST |
1156 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1157 | c->delivery_system = SYS_ATSC; | |
1158 | else | |
1159 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1160 | break; |
5bfaadde | 1161 | case DVBV3_UNKNOWN: |
36bdbc3f AP |
1162 | dev_err(fe->dvb->device, |
1163 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1164 | __func__, c->delivery_system); | |
5bfaadde | 1165 | return -EINVAL; |
ee33c525 | 1166 | } |
5bfaadde MCC |
1167 | |
1168 | return 0; | |
ee33c525 ST |
1169 | } |
1170 | ||
d5748f10 ST |
1171 | /* Ensure the cached values are set correctly in the frontend |
1172 | * legacy tuning structures, for the advanced tuning API. | |
1173 | */ | |
5bfaadde | 1174 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
a689e365 | 1175 | struct dvb_frontend_parameters *p) |
6b73eeaf | 1176 | { |
15cc2bb3 | 1177 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1178 | |
d5748f10 ST |
1179 | p->frequency = c->frequency; |
1180 | p->inversion = c->inversion; | |
6b73eeaf | 1181 | |
5bfaadde MCC |
1182 | switch (dvbv3_type(c->delivery_system)) { |
1183 | case DVBV3_UNKNOWN: | |
36bdbc3f AP |
1184 | dev_err(fe->dvb->device, |
1185 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1186 | __func__, c->delivery_system); | |
5bfaadde MCC |
1187 | return -EINVAL; |
1188 | case DVBV3_QPSK: | |
36bdbc3f | 1189 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
d5748f10 ST |
1190 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1191 | p->u.qpsk.fec_inner = c->fec_inner; | |
1192 | break; | |
5bfaadde | 1193 | case DVBV3_QAM: |
36bdbc3f | 1194 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
d5748f10 ST |
1195 | p->u.qam.symbol_rate = c->symbol_rate; |
1196 | p->u.qam.fec_inner = c->fec_inner; | |
1197 | p->u.qam.modulation = c->modulation; | |
1198 | break; | |
5bfaadde | 1199 | case DVBV3_OFDM: |
36bdbc3f | 1200 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
9a27e6a0 MCC |
1201 | switch (c->bandwidth_hz) { |
1202 | case 10000000: | |
1203 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1204 | break; | |
1205 | case 8000000: | |
75b7f943 | 1206 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1207 | break; |
1208 | case 7000000: | |
1209 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1210 | break; | |
1211 | case 6000000: | |
1212 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1213 | break; | |
1214 | case 5000000: | |
1215 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1216 | break; | |
1217 | case 1712000: | |
1218 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1219 | break; | |
1220 | case 0: | |
1221 | default: | |
75b7f943 | 1222 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1223 | } |
d5748f10 ST |
1224 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1225 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1226 | p->u.ofdm.constellation = c->modulation; | |
1227 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1228 | p->u.ofdm.guard_interval = c->guard_interval; | |
1229 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1230 | break; | |
5bfaadde | 1231 | case DVBV3_ATSC: |
36bdbc3f | 1232 | dev_dbg(fe->dvb->device, "%s: Preparing VSB req\n", __func__); |
d5748f10 ST |
1233 | p->u.vsb.modulation = c->modulation; |
1234 | break; | |
1235 | } | |
5bfaadde | 1236 | return 0; |
6b73eeaf ST |
1237 | } |
1238 | ||
a689e365 MCC |
1239 | /** |
1240 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1241 | * @fe: struct dvb_frontend pointer | |
1242 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1243 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1244 | * | |
1245 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1246 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1247 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1248 | */ | |
1249 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
a689e365 MCC |
1250 | struct dvb_frontend_parameters *p_out) |
1251 | { | |
a689e365 MCC |
1252 | int r; |
1253 | ||
a689e365 | 1254 | if (fe->ops.get_frontend) { |
7c61d80a | 1255 | r = fe->ops.get_frontend(fe); |
a689e365 MCC |
1256 | if (unlikely(r < 0)) |
1257 | return r; | |
7c61d80a | 1258 | if (p_out) |
a689e365 MCC |
1259 | dtv_property_legacy_params_sync(fe, p_out); |
1260 | return 0; | |
1261 | } | |
1262 | ||
7c61d80a | 1263 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1264 | return 0; |
a689e365 MCC |
1265 | } |
1266 | ||
16ef8def | 1267 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1268 | unsigned int cmd, void *parg); |
16ef8def | 1269 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1270 | unsigned int cmd, void *parg); |
1271 | ||
072ce0c5 | 1272 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1273 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1274 | struct dtv_property *tvp, |
16ef8def | 1275 | struct file *file) |
363429a0 | 1276 | { |
5bfaadde | 1277 | int r, ncaps; |
bfbf2dae | 1278 | |
363429a0 | 1279 | switch(tvp->cmd) { |
ba2780c7 | 1280 | case DTV_ENUM_DELSYS: |
5bfaadde MCC |
1281 | ncaps = 0; |
1282 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1283 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; | |
1284 | ncaps++; | |
1285 | } | |
1286 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1287 | break; |
363429a0 | 1288 | case DTV_FREQUENCY: |
50727719 | 1289 | tvp->u.data = c->frequency; |
363429a0 ST |
1290 | break; |
1291 | case DTV_MODULATION: | |
50727719 | 1292 | tvp->u.data = c->modulation; |
363429a0 | 1293 | break; |
75b7f943 | 1294 | case DTV_BANDWIDTH_HZ: |
50727719 | 1295 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1296 | break; |
1297 | case DTV_INVERSION: | |
50727719 | 1298 | tvp->u.data = c->inversion; |
363429a0 ST |
1299 | break; |
1300 | case DTV_SYMBOL_RATE: | |
50727719 | 1301 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1302 | break; |
1303 | case DTV_INNER_FEC: | |
50727719 | 1304 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1305 | break; |
1306 | case DTV_PILOT: | |
50727719 | 1307 | tvp->u.data = c->pilot; |
363429a0 ST |
1308 | break; |
1309 | case DTV_ROLLOFF: | |
50727719 | 1310 | tvp->u.data = c->rolloff; |
363429a0 ST |
1311 | break; |
1312 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1313 | tvp->u.data = c->delivery_system; |
363429a0 | 1314 | break; |
363429a0 | 1315 | case DTV_VOLTAGE: |
50727719 | 1316 | tvp->u.data = c->voltage; |
363429a0 ST |
1317 | break; |
1318 | case DTV_TONE: | |
50727719 | 1319 | tvp->u.data = c->sectone; |
363429a0 | 1320 | break; |
eacf8d8d ST |
1321 | case DTV_API_VERSION: |
1322 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1323 | break; | |
a4de91be | 1324 | case DTV_CODE_RATE_HP: |
50727719 | 1325 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1326 | break; |
1327 | case DTV_CODE_RATE_LP: | |
50727719 | 1328 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1329 | break; |
b87625f0 | 1330 | case DTV_GUARD_INTERVAL: |
50727719 | 1331 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1332 | break; |
1333 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1334 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1335 | break; |
ef526f42 | 1336 | case DTV_HIERARCHY: |
50727719 | 1337 | tvp->u.data = c->hierarchy; |
ef526f42 | 1338 | break; |
224b6642 AP |
1339 | case DTV_INTERLEAVING: |
1340 | tvp->u.data = c->interleaving; | |
1341 | break; | |
b6e760f3 PB |
1342 | |
1343 | /* ISDB-T Support here */ | |
1344 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1345 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1346 | break; |
1347 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1348 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1349 | break; |
1350 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1351 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1352 | break; |
1353 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1354 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1355 | break; |
1356 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1357 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1358 | break; |
e7b7949a | 1359 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1360 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1361 | break; |
b6e760f3 | 1362 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1363 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1364 | break; |
1365 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1366 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1367 | break; |
1368 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1369 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1370 | break; |
1371 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1372 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1373 | break; |
1374 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1375 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1376 | break; |
1377 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1378 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1379 | break; |
1380 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1381 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1382 | break; |
1383 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1384 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1385 | break; |
1386 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1387 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1388 | break; |
1389 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1390 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1391 | break; |
1392 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1393 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1394 | break; |
1395 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1396 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1397 | break; |
287cefd0 EP |
1398 | |
1399 | /* Multistream support */ | |
1400 | case DTV_STREAM_ID: | |
1401 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1402 | tvp->u.data = c->stream_id; | |
94d56ffa | 1403 | break; |
ca689488 MK |
1404 | |
1405 | /* ATSC-MH */ | |
1406 | case DTV_ATSCMH_FIC_VER: | |
1407 | tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver; | |
1408 | break; | |
1409 | case DTV_ATSCMH_PARADE_ID: | |
1410 | tvp->u.data = fe->dtv_property_cache.atscmh_parade_id; | |
1411 | break; | |
1412 | case DTV_ATSCMH_NOG: | |
1413 | tvp->u.data = fe->dtv_property_cache.atscmh_nog; | |
1414 | break; | |
1415 | case DTV_ATSCMH_TNOG: | |
1416 | tvp->u.data = fe->dtv_property_cache.atscmh_tnog; | |
1417 | break; | |
1418 | case DTV_ATSCMH_SGN: | |
1419 | tvp->u.data = fe->dtv_property_cache.atscmh_sgn; | |
1420 | break; | |
1421 | case DTV_ATSCMH_PRC: | |
1422 | tvp->u.data = fe->dtv_property_cache.atscmh_prc; | |
1423 | break; | |
1424 | case DTV_ATSCMH_RS_FRAME_MODE: | |
1425 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_mode; | |
1426 | break; | |
1427 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1428 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_ensemble; | |
1429 | break; | |
1430 | case DTV_ATSCMH_RS_CODE_MODE_PRI: | |
1431 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_pri; | |
1432 | break; | |
1433 | case DTV_ATSCMH_RS_CODE_MODE_SEC: | |
1434 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_sec; | |
1435 | break; | |
1436 | case DTV_ATSCMH_SCCC_BLOCK_MODE: | |
1437 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_block_mode; | |
1438 | break; | |
1439 | case DTV_ATSCMH_SCCC_CODE_MODE_A: | |
1440 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_a; | |
1441 | break; | |
1442 | case DTV_ATSCMH_SCCC_CODE_MODE_B: | |
1443 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_b; | |
1444 | break; | |
1445 | case DTV_ATSCMH_SCCC_CODE_MODE_C: | |
1446 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_c; | |
1447 | break; | |
1448 | case DTV_ATSCMH_SCCC_CODE_MODE_D: | |
1449 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; | |
1450 | break; | |
ca689488 | 1451 | |
33eebec5 AP |
1452 | case DTV_LNA: |
1453 | tvp->u.data = c->lna; | |
1454 | break; | |
1455 | ||
7cd4ece5 MCC |
1456 | /* Fill quality measures */ |
1457 | case DTV_STAT_SIGNAL_STRENGTH: | |
1458 | tvp->u.st = c->strength; | |
1459 | break; | |
1460 | case DTV_STAT_CNR: | |
1461 | tvp->u.st = c->cnr; | |
1462 | break; | |
1463 | case DTV_STAT_PRE_ERROR_BIT_COUNT: | |
1464 | tvp->u.st = c->pre_bit_error; | |
1465 | break; | |
1466 | case DTV_STAT_PRE_TOTAL_BIT_COUNT: | |
1467 | tvp->u.st = c->pre_bit_count; | |
1468 | break; | |
1469 | case DTV_STAT_POST_ERROR_BIT_COUNT: | |
1470 | tvp->u.st = c->post_bit_error; | |
1471 | break; | |
1472 | case DTV_STAT_POST_TOTAL_BIT_COUNT: | |
1473 | tvp->u.st = c->post_bit_count; | |
1474 | break; | |
1475 | case DTV_STAT_ERROR_BLOCK_COUNT: | |
1476 | tvp->u.st = c->block_error; | |
1477 | break; | |
1478 | case DTV_STAT_TOTAL_BLOCK_COUNT: | |
1479 | tvp->u.st = c->block_count; | |
1480 | break; | |
363429a0 | 1481 | default: |
94a93e5f MCC |
1482 | dev_dbg(fe->dvb->device, |
1483 | "%s: FE property %d doesn't exist\n", | |
1484 | __func__, tvp->cmd); | |
aff8ab5c | 1485 | return -EINVAL; |
363429a0 ST |
1486 | } |
1487 | ||
e23d9ae3 AO |
1488 | /* Allow the frontend to override outgoing properties */ |
1489 | if (fe->ops.get_property) { | |
1490 | r = fe->ops.get_property(fe, tvp); | |
1491 | if (r < 0) | |
1492 | return r; | |
1493 | } | |
1494 | ||
36bdbc3f | 1495 | dtv_property_dump(fe, tvp); |
639544d7 | 1496 | |
aff8ab5c | 1497 | return 0; |
363429a0 ST |
1498 | } |
1499 | ||
5bfaadde MCC |
1500 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1501 | ||
04be0f76 MCC |
1502 | static bool is_dvbv3_delsys(u32 delsys) |
1503 | { | |
1504 | bool status; | |
1505 | ||
1506 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || | |
1507 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
1508 | ||
1509 | return status; | |
1510 | } | |
1511 | ||
52dee392 MCC |
1512 | /** |
1513 | * emulate_delivery_system - emulate a DVBv5 delivery system with a DVBv3 type | |
1514 | * @fe: struct frontend; | |
1515 | * @delsys: DVBv5 type that will be used for emulation | |
1516 | * | |
1517 | * Provides emulation for delivery systems that are compatible with the old | |
1518 | * DVBv3 call. Among its usages, it provices support for ISDB-T, and allows | |
1519 | * using a DVB-S2 only frontend just like it were a DVB-S, if the frontent | |
1520 | * parameters are compatible with DVB-S spec. | |
1521 | */ | |
1522 | static int emulate_delivery_system(struct dvb_frontend *fe, u32 delsys) | |
04be0f76 | 1523 | { |
be431b16 | 1524 | int i; |
04be0f76 | 1525 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
04be0f76 | 1526 | |
3626479e MCC |
1527 | c->delivery_system = delsys; |
1528 | ||
04be0f76 | 1529 | /* |
52dee392 | 1530 | * If the call is for ISDB-T, put it into full-seg, auto mode, TV |
04be0f76 | 1531 | */ |
52dee392 MCC |
1532 | if (c->delivery_system == SYS_ISDBT) { |
1533 | dev_dbg(fe->dvb->device, | |
1534 | "%s: Using defaults for SYS_ISDBT\n", | |
1535 | __func__); | |
04be0f76 | 1536 | |
52dee392 MCC |
1537 | if (!c->bandwidth_hz) |
1538 | c->bandwidth_hz = 6000000; | |
1539 | ||
1540 | c->isdbt_partial_reception = 0; | |
1541 | c->isdbt_sb_mode = 0; | |
1542 | c->isdbt_sb_subchannel = 0; | |
1543 | c->isdbt_sb_segment_idx = 0; | |
1544 | c->isdbt_sb_segment_count = 0; | |
1545 | c->isdbt_layer_enabled = 7; | |
1546 | for (i = 0; i < 3; i++) { | |
1547 | c->layer[i].fec = FEC_AUTO; | |
1548 | c->layer[i].modulation = QAM_AUTO; | |
1549 | c->layer[i].interleaving = 0; | |
1550 | c->layer[i].segment_count = 0; | |
04be0f76 MCC |
1551 | } |
1552 | } | |
36bdbc3f | 1553 | dev_dbg(fe->dvb->device, "%s: change delivery system on cache to %d\n", |
52dee392 | 1554 | __func__, c->delivery_system); |
9474c5e6 | 1555 | |
04be0f76 MCC |
1556 | return 0; |
1557 | } | |
1558 | ||
52dee392 MCC |
1559 | /** |
1560 | * dvbv5_set_delivery_system - Sets the delivery system for a DVBv5 API call | |
1561 | * @fe: frontend struct | |
1562 | * @desired_system: delivery system requested by the user | |
1563 | * | |
1564 | * A DVBv5 call know what's the desired system it wants. So, set it. | |
1565 | * | |
1566 | * There are, however, a few known issues with early DVBv5 applications that | |
1567 | * are also handled by this logic: | |
1568 | * | |
1569 | * 1) Some early apps use SYS_UNDEFINED as the desired delivery system. | |
1570 | * This is an API violation, but, as we don't want to break userspace, | |
1571 | * convert it to the first supported delivery system. | |
1572 | * 2) Some apps might be using a DVBv5 call in a wrong way, passing, for | |
1573 | * example, SYS_DVBT instead of SYS_ISDBT. This is because early usage of | |
1574 | * ISDB-T provided backward compat with DVB-T. | |
1575 | */ | |
be431b16 MCC |
1576 | static int dvbv5_set_delivery_system(struct dvb_frontend *fe, |
1577 | u32 desired_system) | |
1578 | { | |
1579 | int ncaps; | |
1580 | u32 delsys = SYS_UNDEFINED; | |
1581 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1582 | enum dvbv3_emulation_type type; | |
1583 | ||
1584 | /* | |
1585 | * It was reported that some old DVBv5 applications were | |
1586 | * filling delivery_system with SYS_UNDEFINED. If this happens, | |
1587 | * assume that the application wants to use the first supported | |
1588 | * delivery system. | |
1589 | */ | |
52dee392 MCC |
1590 | if (desired_system == SYS_UNDEFINED) |
1591 | desired_system = fe->ops.delsys[0]; | |
be431b16 MCC |
1592 | |
1593 | /* | |
52dee392 MCC |
1594 | * This is a DVBv5 call. So, it likely knows the supported |
1595 | * delivery systems. So, check if the desired delivery system is | |
1596 | * supported | |
1597 | */ | |
be431b16 MCC |
1598 | ncaps = 0; |
1599 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1600 | if (fe->ops.delsys[ncaps] == desired_system) { | |
1601 | c->delivery_system = desired_system; | |
1602 | dev_dbg(fe->dvb->device, | |
1603 | "%s: Changing delivery system to %d\n", | |
1604 | __func__, desired_system); | |
1605 | return 0; | |
1606 | } | |
1607 | ncaps++; | |
1608 | } | |
1609 | ||
1610 | /* | |
52dee392 MCC |
1611 | * The requested delivery system isn't supported. Maybe userspace |
1612 | * is requesting a DVBv3 compatible delivery system. | |
1613 | * | |
1614 | * The emulation only works if the desired system is one of the | |
1615 | * delivery systems supported by DVBv3 API | |
be431b16 | 1616 | */ |
be431b16 MCC |
1617 | if (!is_dvbv3_delsys(desired_system)) { |
1618 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1619 | "%s: Delivery system %d not supported.\n", |
1620 | __func__, desired_system); | |
be431b16 MCC |
1621 | return -EINVAL; |
1622 | } | |
1623 | ||
52dee392 MCC |
1624 | type = dvbv3_type(desired_system); |
1625 | ||
be431b16 MCC |
1626 | /* |
1627 | * Get the last non-DVBv3 delivery system that has the same type | |
1628 | * of the desired system | |
1629 | */ | |
1630 | ncaps = 0; | |
1631 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
52dee392 | 1632 | if (dvbv3_type(fe->ops.delsys[ncaps]) == type) |
be431b16 MCC |
1633 | delsys = fe->ops.delsys[ncaps]; |
1634 | ncaps++; | |
1635 | } | |
52dee392 | 1636 | |
be431b16 MCC |
1637 | /* There's nothing compatible with the desired delivery system */ |
1638 | if (delsys == SYS_UNDEFINED) { | |
1639 | dev_dbg(fe->dvb->device, | |
52dee392 MCC |
1640 | "%s: Delivery system %d not supported on emulation mode.\n", |
1641 | __func__, desired_system); | |
be431b16 MCC |
1642 | return -EINVAL; |
1643 | } | |
1644 | ||
52dee392 MCC |
1645 | dev_dbg(fe->dvb->device, |
1646 | "%s: Using delivery system %d emulated as if it were %d\n", | |
1647 | __func__, delsys, desired_system); | |
1648 | ||
1649 | return emulate_delivery_system(fe, desired_system); | |
be431b16 MCC |
1650 | } |
1651 | ||
52dee392 MCC |
1652 | /** |
1653 | * dvbv3_set_delivery_system - Sets the delivery system for a DVBv3 API call | |
1654 | * @fe: frontend struct | |
1655 | * | |
1656 | * A DVBv3 call doesn't know what's the desired system it wants. It also | |
1657 | * doesn't allow to switch between different types. Due to that, userspace | |
1658 | * should use DVBv5 instead. | |
1659 | * However, in order to avoid breaking userspace API, limited backward | |
1660 | * compatibility support is provided. | |
1661 | * | |
1662 | * There are some delivery systems that are incompatible with DVBv3 calls. | |
1663 | * | |
1664 | * This routine should work fine for frontends that support just one delivery | |
1665 | * system. | |
1666 | * | |
1667 | * For frontends that support multiple frontends: | |
1668 | * 1) It defaults to use the first supported delivery system. There's an | |
1669 | * userspace application that allows changing it at runtime; | |
1670 | * | |
1671 | * 2) If the current delivery system is not compatible with DVBv3, it gets | |
1672 | * the first one that it is compatible. | |
1673 | * | |
1674 | * NOTE: in order for this to work with applications like Kaffeine that | |
1675 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to | |
1676 | * DVB-S, drivers that support both DVB-S and DVB-S2 should have the | |
1677 | * SYS_DVBS entry before the SYS_DVBS2, otherwise it won't switch back | |
1678 | * to DVB-S. | |
1679 | */ | |
be431b16 MCC |
1680 | static int dvbv3_set_delivery_system(struct dvb_frontend *fe) |
1681 | { | |
1682 | int ncaps; | |
be431b16 MCC |
1683 | u32 delsys = SYS_UNDEFINED; |
1684 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
be431b16 MCC |
1685 | |
1686 | /* If not set yet, defaults to the first supported delivery system */ | |
1687 | if (c->delivery_system == SYS_UNDEFINED) | |
1688 | c->delivery_system = fe->ops.delsys[0]; | |
1689 | ||
be431b16 MCC |
1690 | /* |
1691 | * Trivial case: just use the current one, if it already a DVBv3 | |
1692 | * delivery system | |
1693 | */ | |
1694 | if (is_dvbv3_delsys(c->delivery_system)) { | |
1695 | dev_dbg(fe->dvb->device, | |
1696 | "%s: Using delivery system to %d\n", | |
1697 | __func__, c->delivery_system); | |
1698 | return 0; | |
1699 | } | |
1700 | ||
be431b16 | 1701 | /* |
52dee392 MCC |
1702 | * Seek for the first delivery system that it is compatible with a |
1703 | * DVBv3 standard | |
be431b16 MCC |
1704 | */ |
1705 | ncaps = 0; | |
1706 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
52dee392 MCC |
1707 | if (dvbv3_type(fe->ops.delsys[ncaps]) != DVBV3_UNKNOWN) { |
1708 | delsys = fe->ops.delsys[ncaps]; | |
be431b16 MCC |
1709 | break; |
1710 | } | |
1711 | ncaps++; | |
1712 | } | |
1713 | if (delsys == SYS_UNDEFINED) { | |
52dee392 MCC |
1714 | dev_dbg(fe->dvb->device, |
1715 | "%s: Couldn't find a delivery system that works with FE_SET_FRONTEND\n", | |
1716 | __func__); | |
1717 | return -EINVAL; | |
be431b16 | 1718 | } |
52dee392 | 1719 | return emulate_delivery_system(fe, delsys); |
be431b16 MCC |
1720 | } |
1721 | ||
072ce0c5 MCC |
1722 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1723 | struct dtv_property *tvp, | |
072ce0c5 | 1724 | struct file *file) |
6b73eeaf ST |
1725 | { |
1726 | int r = 0; | |
50727719 | 1727 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1728 | |
bfbf2dae | 1729 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1730 | if (fe->ops.set_property) { |
bfbf2dae | 1731 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1732 | if (r < 0) |
1733 | return r; | |
1734 | } | |
bfbf2dae | 1735 | |
6b73eeaf | 1736 | switch(tvp->cmd) { |
e7fee0f3 | 1737 | case DTV_CLEAR: |
5bfaadde MCC |
1738 | /* |
1739 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1740 | * not effect hardware. |
1741 | */ | |
b6e760f3 | 1742 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1743 | break; |
e7fee0f3 | 1744 | case DTV_TUNE: |
6b73eeaf | 1745 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1746 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1747 | * ioctl. | |
6b73eeaf | 1748 | */ |
50727719 | 1749 | c->state = tvp->cmd; |
36bdbc3f AP |
1750 | dev_dbg(fe->dvb->device, "%s: Finalised property cache\n", |
1751 | __func__); | |
d5748f10 | 1752 | |
5bfaadde | 1753 | r = dtv_set_frontend(fe); |
6b73eeaf | 1754 | break; |
363429a0 | 1755 | case DTV_FREQUENCY: |
50727719 | 1756 | c->frequency = tvp->u.data; |
6b73eeaf | 1757 | break; |
363429a0 | 1758 | case DTV_MODULATION: |
50727719 | 1759 | c->modulation = tvp->u.data; |
6b73eeaf | 1760 | break; |
75b7f943 | 1761 | case DTV_BANDWIDTH_HZ: |
50727719 | 1762 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1763 | break; |
363429a0 | 1764 | case DTV_INVERSION: |
50727719 | 1765 | c->inversion = tvp->u.data; |
6b73eeaf | 1766 | break; |
363429a0 | 1767 | case DTV_SYMBOL_RATE: |
50727719 | 1768 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1769 | break; |
363429a0 | 1770 | case DTV_INNER_FEC: |
50727719 | 1771 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1772 | break; |
363429a0 | 1773 | case DTV_PILOT: |
50727719 | 1774 | c->pilot = tvp->u.data; |
6b73eeaf | 1775 | break; |
363429a0 | 1776 | case DTV_ROLLOFF: |
50727719 | 1777 | c->rolloff = tvp->u.data; |
6b73eeaf | 1778 | break; |
363429a0 | 1779 | case DTV_DELIVERY_SYSTEM: |
be431b16 | 1780 | r = dvbv5_set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1781 | break; |
363429a0 | 1782 | case DTV_VOLTAGE: |
50727719 | 1783 | c->voltage = tvp->u.data; |
16ef8def | 1784 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1785 | (void *)c->voltage); |
13c97bf5 | 1786 | break; |
363429a0 | 1787 | case DTV_TONE: |
50727719 | 1788 | c->sectone = tvp->u.data; |
16ef8def | 1789 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1790 | (void *)c->sectone); |
13c97bf5 | 1791 | break; |
a4de91be | 1792 | case DTV_CODE_RATE_HP: |
50727719 | 1793 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1794 | break; |
1795 | case DTV_CODE_RATE_LP: | |
50727719 | 1796 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1797 | break; |
b87625f0 | 1798 | case DTV_GUARD_INTERVAL: |
50727719 | 1799 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1800 | break; |
1801 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1802 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1803 | break; |
ef526f42 | 1804 | case DTV_HIERARCHY: |
50727719 | 1805 | c->hierarchy = tvp->u.data; |
ef526f42 | 1806 | break; |
224b6642 AP |
1807 | case DTV_INTERLEAVING: |
1808 | c->interleaving = tvp->u.data; | |
1809 | break; | |
b6e760f3 PB |
1810 | |
1811 | /* ISDB-T Support here */ | |
1812 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1813 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1814 | break; |
1815 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1816 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1817 | break; |
1818 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1819 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1820 | break; |
1821 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1822 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1823 | break; |
1824 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1825 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1826 | break; |
e7b7949a | 1827 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1828 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1829 | break; |
b6e760f3 | 1830 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1831 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1832 | break; |
1833 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1834 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1835 | break; |
1836 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1837 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1838 | break; |
1839 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1840 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1841 | break; |
1842 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1843 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1844 | break; |
1845 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1846 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1847 | break; |
1848 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1849 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1850 | break; |
1851 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1852 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1853 | break; |
1854 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1855 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1856 | break; |
1857 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1858 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1859 | break; |
1860 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1861 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1862 | break; |
1863 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1864 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1865 | break; |
287cefd0 EP |
1866 | |
1867 | /* Multistream support */ | |
1868 | case DTV_STREAM_ID: | |
1869 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1870 | c->stream_id = tvp->u.data; | |
98293ef3 | 1871 | break; |
ca689488 MK |
1872 | |
1873 | /* ATSC-MH */ | |
1874 | case DTV_ATSCMH_PARADE_ID: | |
1875 | fe->dtv_property_cache.atscmh_parade_id = tvp->u.data; | |
1876 | break; | |
1877 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1878 | fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; | |
1879 | break; | |
1880 | ||
33eebec5 AP |
1881 | case DTV_LNA: |
1882 | c->lna = tvp->u.data; | |
1883 | if (fe->ops.set_lna) | |
1884 | r = fe->ops.set_lna(fe); | |
1885 | break; | |
1886 | ||
363429a0 | 1887 | default: |
aff8ab5c | 1888 | return -EINVAL; |
6b73eeaf ST |
1889 | } |
1890 | ||
13c97bf5 | 1891 | return r; |
6b73eeaf ST |
1892 | } |
1893 | ||
16ef8def | 1894 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1895 | unsigned int cmd, void *parg) |
1896 | { | |
1897 | struct dvb_device *dvbdev = file->private_data; | |
1898 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1899 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1900 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac897586 | 1901 | int err = -EOPNOTSUPP; |
1da177e4 | 1902 | |
36bdbc3f | 1903 | dev_dbg(fe->dvb->device, "%s: (%d)\n", __func__, _IOC_NR(cmd)); |
6ae23224 JL |
1904 | if (down_interruptible(&fepriv->sem)) |
1905 | return -ERESTARTSYS; | |
1906 | ||
1907 | if (fepriv->exit != DVB_FE_NO_EXIT) { | |
1908 | up(&fepriv->sem); | |
1da177e4 | 1909 | return -ENODEV; |
6ae23224 | 1910 | } |
1da177e4 LT |
1911 | |
1912 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1913 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
6ae23224 JL |
1914 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) { |
1915 | up(&fepriv->sem); | |
1da177e4 | 1916 | return -EPERM; |
6ae23224 | 1917 | } |
1da177e4 | 1918 | |
13c97bf5 | 1919 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1920 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1921 | else { |
50727719 | 1922 | c->state = DTV_UNDEFINED; |
16ef8def | 1923 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1924 | } |
13c97bf5 ST |
1925 | |
1926 | up(&fepriv->sem); | |
1927 | return err; | |
1928 | } | |
1929 | ||
16ef8def | 1930 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1931 | unsigned int cmd, void *parg) |
1932 | { | |
1933 | struct dvb_device *dvbdev = file->private_data; | |
1934 | struct dvb_frontend *fe = dvbdev->priv; | |
51dcb19a | 1935 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
50727719 | 1936 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1937 | int err = 0; |
e7fee0f3 ST |
1938 | |
1939 | struct dtv_properties *tvps = NULL; | |
1940 | struct dtv_property *tvp = NULL; | |
1941 | int i; | |
13c97bf5 | 1942 | |
36bdbc3f | 1943 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
13c97bf5 | 1944 | |
6b73eeaf | 1945 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1946 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1947 | |
36bdbc3f AP |
1948 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1949 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1950 | |
1951 | /* Put an arbitrary limit on the number of messages that can | |
1952 | * be sent at once */ | |
6068f506 | 1953 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1954 | return -EINVAL; |
1955 | ||
6e3924aa | 1956 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1957 | if (!tvp) { |
1958 | err = -ENOMEM; | |
1959 | goto out; | |
6b73eeaf ST |
1960 | } |
1961 | ||
e7fee0f3 ST |
1962 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1963 | err = -EFAULT; | |
1964 | goto out; | |
1965 | } | |
1966 | ||
d48cb402 | 1967 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1968 | err = dtv_property_process_set(fe, tvp + i, file); |
1969 | if (err < 0) | |
1970 | goto out; | |
1971 | (tvp + i)->result = err; | |
d48cb402 | 1972 | } |
e7fee0f3 | 1973 | |
50727719 | 1974 | if (c->state == DTV_TUNE) |
36bdbc3f | 1975 | dev_dbg(fe->dvb->device, "%s: Property cache is full, tuning\n", __func__); |
bfbf2dae | 1976 | |
363429a0 ST |
1977 | } else |
1978 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1979 | tvps = (struct dtv_properties __user *)parg; |
1980 | ||
36bdbc3f AP |
1981 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1982 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1983 | |
1984 | /* Put an arbitrary limit on the number of messages that can | |
1985 | * be sent at once */ | |
6068f506 | 1986 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1987 | return -EINVAL; |
1988 | ||
6e3924aa | 1989 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1990 | if (!tvp) { |
1991 | err = -ENOMEM; | |
1992 | goto out; | |
1993 | } | |
1994 | ||
1995 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1996 | err = -EFAULT; | |
1997 | goto out; | |
1998 | } | |
1999 | ||
a689e365 MCC |
2000 | /* |
2001 | * Fills the cache out struct with the cache contents, plus | |
51dcb19a MCC |
2002 | * the data retrieved from get_frontend, if the frontend |
2003 | * is not idle. Otherwise, returns the cached content | |
a689e365 | 2004 | */ |
51dcb19a MCC |
2005 | if (fepriv->state != FESTATE_IDLE) { |
2006 | err = dtv_get_frontend(fe, NULL); | |
2007 | if (err < 0) | |
2008 | goto out; | |
2009 | } | |
d48cb402 | 2010 | for (i = 0; i < tvps->num; i++) { |
7c61d80a | 2011 | err = dtv_property_process_get(fe, c, tvp + i, file); |
aff8ab5c AO |
2012 | if (err < 0) |
2013 | goto out; | |
2014 | (tvp + i)->result = err; | |
d48cb402 | 2015 | } |
363429a0 ST |
2016 | |
2017 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
2018 | err = -EFAULT; | |
2019 | goto out; | |
2020 | } | |
2021 | ||
363429a0 | 2022 | } else |
ac897586 | 2023 | err = -EOPNOTSUPP; |
363429a0 | 2024 | |
e7fee0f3 ST |
2025 | out: |
2026 | kfree(tvp); | |
13c97bf5 ST |
2027 | return err; |
2028 | } | |
2029 | ||
5bfaadde | 2030 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 2031 | { |
9682cea2 MCC |
2032 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
2033 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
2034 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 2035 | u32 rolloff = 0; |
9682cea2 | 2036 | |
5bfaadde MCC |
2037 | if (dvb_frontend_check_parameters(fe) < 0) |
2038 | return -EINVAL; | |
9682cea2 | 2039 | |
556a0442 CR |
2040 | /* |
2041 | * Initialize output parameters to match the values given by | |
2042 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
2043 | * with status = 0, which copies output parameters to userspace. | |
2044 | */ | |
2045 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); | |
2046 | ||
5bfaadde MCC |
2047 | /* |
2048 | * Be sure that the bandwidth will be filled for all | |
2049 | * non-satellite systems, as tuners need to know what | |
2050 | * low pass/Nyquist half filter should be applied, in | |
2051 | * order to avoid inter-channel noise. | |
2052 | * | |
2053 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
2054 | * ATSC and DVB-C don't set, so, the core should fill it. | |
2055 | * | |
2056 | * On DVB-C Annex A and C, the bandwidth is a function of | |
2057 | * the roll-off and symbol rate. Annex B defines different | |
2058 | * roll-off factors depending on the modulation. Fortunately, | |
2059 | * Annex B is only used with 6MHz, so there's no need to | |
2060 | * calculate it. | |
2061 | * | |
2062 | * While not officially supported, a side effect of handling it at | |
2063 | * the cache level is that a program could retrieve the bandwidth | |
2064 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
2065 | */ | |
2066 | switch (c->delivery_system) { | |
2067 | case SYS_ATSC: | |
2068 | case SYS_DVBC_ANNEX_B: | |
2069 | c->bandwidth_hz = 6000000; | |
2070 | break; | |
2071 | case SYS_DVBC_ANNEX_A: | |
2072 | rolloff = 115; | |
2073 | break; | |
2074 | case SYS_DVBC_ANNEX_C: | |
2075 | rolloff = 113; | |
2076 | break; | |
2077 | default: | |
2078 | break; | |
2079 | } | |
2080 | if (rolloff) | |
2081 | c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; | |
9682cea2 MCC |
2082 | |
2083 | /* force auto frequency inversion if requested */ | |
5bfaadde | 2084 | if (dvb_force_auto_inversion) |
9682cea2 | 2085 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
2086 | |
2087 | /* | |
2088 | * without hierarchical coding code_rate_LP is irrelevant, | |
2089 | * so we tolerate the otherwise invalid FEC_NONE setting | |
2090 | */ | |
2091 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
2092 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
2093 | |
2094 | /* get frontend-specific tuning settings */ | |
5bfaadde | 2095 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
2096 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
2097 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
2098 | fepriv->max_drift = fetunesettings.max_drift; | |
2099 | fepriv->step_size = fetunesettings.step_size; | |
2100 | } else { | |
2101 | /* default values */ | |
5bfaadde | 2102 | switch (c->delivery_system) { |
910a5f2e MCC |
2103 | case SYS_DVBS: |
2104 | case SYS_DVBS2: | |
2105 | case SYS_ISDBS: | |
2106 | case SYS_TURBO: | |
5bfaadde MCC |
2107 | case SYS_DVBC_ANNEX_A: |
2108 | case SYS_DVBC_ANNEX_C: | |
2109 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
2110 | fepriv->step_size = c->symbol_rate / 16000; |
2111 | fepriv->max_drift = c->symbol_rate / 2000; | |
2112 | break; | |
5bfaadde MCC |
2113 | case SYS_DVBT: |
2114 | case SYS_DVBT2: | |
2115 | case SYS_ISDBT: | |
224b6642 | 2116 | case SYS_DTMB: |
5bfaadde | 2117 | fepriv->min_delay = HZ / 20; |
9682cea2 MCC |
2118 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
2119 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
2120 | break; | |
5bfaadde MCC |
2121 | default: |
2122 | /* | |
2123 | * FIXME: This sounds wrong! if freqency_stepsize is | |
2124 | * defined by the frontend, why not use it??? | |
2125 | */ | |
2126 | fepriv->min_delay = HZ / 20; | |
2127 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
2128 | fepriv->max_drift = 0; |
2129 | break; | |
2130 | } | |
2131 | } | |
2132 | if (dvb_override_tune_delay > 0) | |
2133 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
2134 | ||
2135 | fepriv->state = FESTATE_RETUNE; | |
2136 | ||
2137 | /* Request the search algorithm to search */ | |
2138 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
2139 | ||
2140 | dvb_frontend_clear_events(fe); | |
2141 | dvb_frontend_add_event(fe, 0); | |
2142 | dvb_frontend_wakeup(fe); | |
2143 | fepriv->status = 0; | |
2144 | ||
2145 | return 0; | |
2146 | } | |
2147 | ||
2148 | ||
16ef8def | 2149 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
2150 | unsigned int cmd, void *parg) |
2151 | { | |
2152 | struct dvb_device *dvbdev = file->private_data; | |
2153 | struct dvb_frontend *fe = dvbdev->priv; | |
2154 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 2155 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
ac897586 | 2156 | int err = -EOPNOTSUPP; |
13c97bf5 | 2157 | |
1da177e4 LT |
2158 | switch (cmd) { |
2159 | case FE_GET_INFO: { | |
0c53c70f | 2160 | struct dvb_frontend_info* info = parg; |
9474c5e6 | 2161 | |
dea74869 | 2162 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 2163 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 2164 | |
5bfaadde MCC |
2165 | /* |
2166 | * Associate the 4 delivery systems supported by DVBv3 | |
2167 | * API with their DVBv5 counterpart. For the other standards, | |
2168 | * use the closest type, assuming that it would hopefully | |
2169 | * work with a DVBv3 application. | |
2170 | * It should be noticed that, on multi-frontend devices with | |
2171 | * different types (terrestrial and cable, for example), | |
2172 | * a pure DVBv3 application won't be able to use all delivery | |
2173 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
2174 | * system should be enough for making it work. | |
2175 | */ | |
2176 | switch (dvbv3_type(c->delivery_system)) { | |
2177 | case DVBV3_QPSK: | |
9474c5e6 | 2178 | info->type = FE_QPSK; |
5bfaadde MCC |
2179 | break; |
2180 | case DVBV3_ATSC: | |
9474c5e6 | 2181 | info->type = FE_ATSC; |
5bfaadde MCC |
2182 | break; |
2183 | case DVBV3_QAM: | |
9474c5e6 | 2184 | info->type = FE_QAM; |
5bfaadde MCC |
2185 | break; |
2186 | case DVBV3_OFDM: | |
9474c5e6 | 2187 | info->type = FE_OFDM; |
5bfaadde MCC |
2188 | break; |
2189 | default: | |
36bdbc3f AP |
2190 | dev_err(fe->dvb->device, |
2191 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
2192 | __func__, c->delivery_system); | |
5bfaadde MCC |
2193 | fe->ops.info.type = FE_OFDM; |
2194 | } | |
36bdbc3f AP |
2195 | dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n", |
2196 | __func__, c->delivery_system, fe->ops.info.type); | |
5bfaadde | 2197 | |
1b29bcfb MP |
2198 | /* Set CAN_INVERSION_AUTO bit on in other than oneshot mode */ |
2199 | if (!(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) | |
2200 | info->caps |= FE_CAN_INVERSION_AUTO; | |
1da177e4 LT |
2201 | err = 0; |
2202 | break; | |
2203 | } | |
2204 | ||
6757ccc5 PB |
2205 | case FE_READ_STATUS: { |
2206 | fe_status_t* status = parg; | |
2207 | ||
25985edc | 2208 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2209 | * that user get signal state from previous tuning */ |
01886255 JG |
2210 | if (fepriv->state == FESTATE_RETUNE || |
2211 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2212 | err=0; |
2213 | *status = 0; | |
2214 | break; | |
2215 | } | |
2216 | ||
dea74869 PB |
2217 | if (fe->ops.read_status) |
2218 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2219 | break; |
6757ccc5 | 2220 | } |
48caa6f1 | 2221 | |
1da177e4 | 2222 | case FE_READ_BER: |
48caa6f1 AP |
2223 | if (fe->ops.read_ber) { |
2224 | if (fepriv->thread) | |
2225 | err = fe->ops.read_ber(fe, (__u32 *) parg); | |
2226 | else | |
2227 | err = -EAGAIN; | |
2228 | } | |
1da177e4 LT |
2229 | break; |
2230 | ||
2231 | case FE_READ_SIGNAL_STRENGTH: | |
48caa6f1 AP |
2232 | if (fe->ops.read_signal_strength) { |
2233 | if (fepriv->thread) | |
2234 | err = fe->ops.read_signal_strength(fe, (__u16 *) parg); | |
2235 | else | |
2236 | err = -EAGAIN; | |
2237 | } | |
1da177e4 LT |
2238 | break; |
2239 | ||
2240 | case FE_READ_SNR: | |
48caa6f1 AP |
2241 | if (fe->ops.read_snr) { |
2242 | if (fepriv->thread) | |
2243 | err = fe->ops.read_snr(fe, (__u16 *) parg); | |
2244 | else | |
2245 | err = -EAGAIN; | |
2246 | } | |
1da177e4 LT |
2247 | break; |
2248 | ||
2249 | case FE_READ_UNCORRECTED_BLOCKS: | |
48caa6f1 AP |
2250 | if (fe->ops.read_ucblocks) { |
2251 | if (fepriv->thread) | |
2252 | err = fe->ops.read_ucblocks(fe, (__u32 *) parg); | |
2253 | else | |
2254 | err = -EAGAIN; | |
2255 | } | |
1da177e4 LT |
2256 | break; |
2257 | ||
1da177e4 | 2258 | case FE_DISEQC_RESET_OVERLOAD: |
dea74869 PB |
2259 | if (fe->ops.diseqc_reset_overload) { |
2260 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2261 | fepriv->state = FESTATE_DISEQC; |
2262 | fepriv->status = 0; | |
2263 | } | |
2264 | break; | |
2265 | ||
2266 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
2267 | if (fe->ops.diseqc_send_master_cmd) { |
2268 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
2269 | fepriv->state = FESTATE_DISEQC; |
2270 | fepriv->status = 0; | |
2271 | } | |
2272 | break; | |
2273 | ||
2274 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
2275 | if (fe->ops.diseqc_send_burst) { |
2276 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
2277 | fepriv->state = FESTATE_DISEQC; |
2278 | fepriv->status = 0; | |
2279 | } | |
2280 | break; | |
2281 | ||
2282 | case FE_SET_TONE: | |
dea74869 PB |
2283 | if (fe->ops.set_tone) { |
2284 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 2285 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
2286 | fepriv->state = FESTATE_DISEQC; |
2287 | fepriv->status = 0; | |
2288 | } | |
2289 | break; | |
2290 | ||
2291 | case FE_SET_VOLTAGE: | |
dea74869 PB |
2292 | if (fe->ops.set_voltage) { |
2293 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 2294 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
2295 | fepriv->state = FESTATE_DISEQC; |
2296 | fepriv->status = 0; | |
2297 | } | |
2298 | break; | |
2299 | ||
2300 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
2301 | if (fe->ops.dishnetwork_send_legacy_command) { |
2302 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
2303 | fepriv->state = FESTATE_DISEQC; |
2304 | fepriv->status = 0; | |
dea74869 | 2305 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2306 | /* |
2307 | * NOTE: This is a fallback condition. Some frontends | |
2308 | * (stv0299 for instance) take longer than 8msec to | |
2309 | * respond to a set_voltage command. Those switches | |
2310 | * need custom routines to switch properly. For all | |
2030c032 | 2311 | * other frontends, the following should work ok. |
83b75b04 N |
2312 | * Dish network legacy switches (as used by Dish500) |
2313 | * are controlled by sending 9-bit command words | |
2314 | * spaced 8msec apart. | |
25985edc | 2315 | * the actual command word is switch/port dependent |
83b75b04 N |
2316 | * so it is up to the userspace application to send |
2317 | * the right command. | |
2318 | * The command must always start with a '0' after | |
2319 | * initialization, so parg is 8 bits and does not | |
2320 | * include the initialization or start bit | |
2321 | */ | |
c6eb8eaf | 2322 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
2323 | struct timeval nexttime; |
2324 | struct timeval tv[10]; | |
2325 | int i; | |
2326 | u8 last = 1; | |
2327 | if (dvb_frontend_debug) | |
c6eb8eaf | 2328 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
2329 | do_gettimeofday(&nexttime); |
2330 | if (dvb_frontend_debug) | |
b9b1b3a8 | 2331 | tv[0] = nexttime; |
83b75b04 N |
2332 | /* before sending a command, initialize by sending |
2333 | * a 32ms 18V to the switch | |
2334 | */ | |
dea74869 | 2335 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2336 | dvb_frontend_sleep_until(&nexttime, 32000); |
2337 | ||
2338 | for (i = 0; i < 9; i++) { | |
2339 | if (dvb_frontend_debug) | |
2340 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 2341 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2342 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2343 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2344 | last = (last) ? 0 : 1; |
2345 | } | |
c6eb8eaf | 2346 | swcmd = swcmd >> 1; |
83b75b04 N |
2347 | if (i != 8) |
2348 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2349 | } | |
2350 | if (dvb_frontend_debug) { | |
2351 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 2352 | __func__, fe->dvb->num); |
83b75b04 N |
2353 | for (i = 1; i < 10; i++) |
2354 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
2355 | } | |
2356 | err = 0; | |
2357 | fepriv->state = FESTATE_DISEQC; | |
2358 | fepriv->status = 0; | |
1da177e4 LT |
2359 | } |
2360 | break; | |
2361 | ||
2362 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2363 | if (fe->ops.diseqc_recv_slave_reply) |
2364 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2365 | break; |
2366 | ||
2367 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2368 | if (fe->ops.enable_high_lnb_voltage) |
2369 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2370 | break; |
2371 | ||
9682cea2 | 2372 | case FE_SET_FRONTEND: |
be431b16 | 2373 | err = dvbv3_set_delivery_system(fe); |
04be0f76 MCC |
2374 | if (err) |
2375 | break; | |
2376 | ||
e399ce77 | 2377 | err = dtv_property_cache_sync(fe, c, parg); |
5bfaadde MCC |
2378 | if (err) |
2379 | break; | |
2380 | err = dtv_set_frontend(fe); | |
1da177e4 | 2381 | break; |
1da177e4 LT |
2382 | case FE_GET_EVENT: |
2383 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2384 | break; | |
2385 | ||
2386 | case FE_GET_FRONTEND: | |
e399ce77 | 2387 | err = dtv_get_frontend(fe, parg); |
1da177e4 | 2388 | break; |
36cb557a AQ |
2389 | |
2390 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 2391 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2392 | err = 0; |
36cb557a | 2393 | break; |
c2c1b415 | 2394 | } |
1da177e4 | 2395 | |
1da177e4 LT |
2396 | return err; |
2397 | } | |
2398 | ||
6b73eeaf | 2399 | |
1da177e4 LT |
2400 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2401 | { | |
2402 | struct dvb_device *dvbdev = file->private_data; | |
2403 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2404 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2405 | |
36bdbc3f | 2406 | dev_dbg_ratelimited(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
2407 | |
2408 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2409 | ||
2410 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2411 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2412 | ||
2413 | return 0; | |
2414 | } | |
2415 | ||
2416 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2417 | { | |
2418 | struct dvb_device *dvbdev = file->private_data; | |
2419 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2420 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2421 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2422 | int ret; |
2423 | ||
36bdbc3f | 2424 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
e36309f5 MC |
2425 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
2426 | return -ENODEV; | |
1da177e4 | 2427 | |
59b1842d DB |
2428 | if (adapter->mfe_shared) { |
2429 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2430 | |
2431 | if (adapter->mfe_dvbdev == NULL) | |
2432 | adapter->mfe_dvbdev = dvbdev; | |
2433 | ||
2434 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2435 | struct dvb_device | |
2436 | *mfedev = adapter->mfe_dvbdev; | |
2437 | struct dvb_frontend | |
2438 | *mfe = mfedev->priv; | |
2439 | struct dvb_frontend_private | |
2440 | *mfepriv = mfe->frontend_priv; | |
2441 | int mferetry = (dvb_mfe_wait_time << 1); | |
2442 | ||
2443 | mutex_unlock (&adapter->mfe_lock); | |
2444 | while (mferetry-- && (mfedev->users != -1 || | |
2445 | mfepriv->thread != NULL)) { | |
2446 | if(msleep_interruptible(500)) { | |
2447 | if(signal_pending(current)) | |
2448 | return -EINTR; | |
59b1842d | 2449 | } |
6594690b DB |
2450 | } |
2451 | ||
2452 | mutex_lock (&adapter->mfe_lock); | |
2453 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2454 | mfedev = adapter->mfe_dvbdev; |
2455 | mfe = mfedev->priv; | |
2456 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2457 | if (mfedev->users != -1 || |
2458 | mfepriv->thread != NULL) { | |
2459 | mutex_unlock (&adapter->mfe_lock); | |
2460 | return -EBUSY; | |
59b1842d | 2461 | } |
6594690b | 2462 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2463 | } |
59b1842d DB |
2464 | } |
2465 | } | |
2466 | ||
48136e1e OE |
2467 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2468 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2469 | goto err0; |
2d196931 DH |
2470 | |
2471 | /* If we took control of the bus, we need to force | |
2472 | reinitialization. This is because many ts_bus_ctrl() | |
2473 | functions strobe the RESET pin on the demod, and if the | |
2474 | frontend thread already exists then the dvb_init() routine | |
2475 | won't get called (which is what usually does initial | |
2476 | register configuration). */ | |
2477 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2478 | } |
2479 | ||
48136e1e OE |
2480 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2481 | goto err1; | |
04c56d0e | 2482 | |
48136e1e | 2483 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2484 | /* normal tune mode when opened R/W */ |
2485 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2486 | fepriv->tone = -1; | |
2487 | fepriv->voltage = -1; | |
2488 | ||
1da177e4 LT |
2489 | ret = dvb_frontend_start (fe); |
2490 | if (ret) | |
48136e1e | 2491 | goto err2; |
1da177e4 LT |
2492 | |
2493 | /* empty event queue */ | |
2494 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2495 | } | |
2496 | ||
59b1842d DB |
2497 | if (adapter->mfe_shared) |
2498 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2499 | return ret; |
48136e1e OE |
2500 | |
2501 | err2: | |
2502 | dvb_generic_release(inode, file); | |
2503 | err1: | |
2504 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2505 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2506 | err0: |
2507 | if (adapter->mfe_shared) | |
2508 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2509 | return ret; |
1da177e4 LT |
2510 | } |
2511 | ||
2512 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2513 | { | |
2514 | struct dvb_device *dvbdev = file->private_data; | |
2515 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2516 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2517 | int ret; |
1da177e4 | 2518 | |
36bdbc3f | 2519 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2520 | |
b9d5efcc | 2521 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2522 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2523 | mb(); |
2524 | } | |
1da177e4 | 2525 | |
ca5be9cd MR |
2526 | ret = dvb_generic_release (inode, file); |
2527 | ||
48136e1e | 2528 | if (dvbdev->users == -1) { |
b9d5efcc | 2529 | wake_up(&fepriv->wait_queue); |
03feee37 | 2530 | if (fepriv->exit != DVB_FE_NO_EXIT) |
48136e1e | 2531 | wake_up(&dvbdev->wait_queue); |
48136e1e OE |
2532 | if (fe->ops.ts_bus_ctrl) |
2533 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2534 | } |
48136e1e | 2535 | |
ca5be9cd | 2536 | return ret; |
1da177e4 LT |
2537 | } |
2538 | ||
784e29d2 | 2539 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2540 | .owner = THIS_MODULE, |
16ef8def | 2541 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2542 | .poll = dvb_frontend_poll, |
2543 | .open = dvb_frontend_open, | |
6038f373 AB |
2544 | .release = dvb_frontend_release, |
2545 | .llseek = noop_llseek, | |
1da177e4 LT |
2546 | }; |
2547 | ||
06bae122 AP |
2548 | int dvb_frontend_suspend(struct dvb_frontend *fe) |
2549 | { | |
2550 | int ret = 0; | |
2551 | ||
2552 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2553 | fe->id); | |
2554 | ||
2555 | if (fe->ops.tuner_ops.sleep) | |
2556 | ret = fe->ops.tuner_ops.sleep(fe); | |
2557 | ||
2558 | if (fe->ops.sleep) | |
2559 | ret = fe->ops.sleep(fe); | |
2560 | ||
2561 | return ret; | |
2562 | } | |
2563 | EXPORT_SYMBOL(dvb_frontend_suspend); | |
2564 | ||
2565 | int dvb_frontend_resume(struct dvb_frontend *fe) | |
2566 | { | |
2567 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
2568 | int ret = 0; | |
2569 | ||
2570 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2571 | fe->id); | |
2572 | ||
2573 | if (fe->ops.init) | |
2574 | ret = fe->ops.init(fe); | |
2575 | ||
2576 | if (fe->ops.tuner_ops.init) | |
2577 | ret = fe->ops.tuner_ops.init(fe); | |
2578 | ||
2579 | fepriv->state = FESTATE_RETUNE; | |
2580 | dvb_frontend_wakeup(fe); | |
2581 | ||
2582 | return ret; | |
2583 | } | |
2584 | EXPORT_SYMBOL(dvb_frontend_resume); | |
2585 | ||
1da177e4 LT |
2586 | int dvb_register_frontend(struct dvb_adapter* dvb, |
2587 | struct dvb_frontend* fe) | |
2588 | { | |
2589 | struct dvb_frontend_private *fepriv; | |
2590 | static const struct dvb_device dvbdev_template = { | |
2591 | .users = ~0, | |
2592 | .writers = 1, | |
2593 | .readers = (~0)-1, | |
2594 | .fops = &dvb_frontend_fops, | |
2595 | .kernel_ioctl = dvb_frontend_ioctl | |
2596 | }; | |
2597 | ||
36bdbc3f | 2598 | dev_dbg(dvb->device, "%s:\n", __func__); |
1da177e4 | 2599 | |
3593cab5 | 2600 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2601 | return -ERESTARTSYS; |
2602 | ||
7408187d | 2603 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2604 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2605 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2606 | return -ENOMEM; |
2607 | } | |
0c53c70f | 2608 | fepriv = fe->frontend_priv; |
1da177e4 | 2609 | |
a0a4714c | 2610 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2611 | init_waitqueue_head (&fepriv->wait_queue); |
2612 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2613 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2614 | fe->dvb = dvb; |
2615 | fepriv->inversion = INVERSION_OFF; | |
2616 | ||
36bdbc3f AP |
2617 | dev_info(fe->dvb->device, |
2618 | "DVB: registering adapter %i frontend %i (%s)...\n", | |
2619 | fe->dvb->num, fe->id, fe->ops.info.name); | |
1da177e4 LT |
2620 | |
2621 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2622 | fe, DVB_DEVICE_FRONTEND); | |
2623 | ||
5bfaadde MCC |
2624 | /* |
2625 | * Initialize the cache to the proper values according with the | |
2626 | * first supported delivery system (ops->delsys[0]) | |
2627 | */ | |
240ab508 | 2628 | |
be431b16 | 2629 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; |
5bfaadde MCC |
2630 | dvb_frontend_clear_cache(fe); |
2631 | ||
3593cab5 | 2632 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2633 | return 0; |
2634 | } | |
2635 | EXPORT_SYMBOL(dvb_register_frontend); | |
2636 | ||
2637 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2638 | { | |
0c53c70f | 2639 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
36bdbc3f | 2640 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2641 | |
57861b43 | 2642 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2643 | dvb_frontend_stop (fe); |
57861b43 MR |
2644 | mutex_unlock(&frontend_mutex); |
2645 | ||
2646 | if (fepriv->dvbdev->users < -1) | |
2647 | wait_event(fepriv->dvbdev->wait_queue, | |
2648 | fepriv->dvbdev->users==-1); | |
2649 | ||
3593cab5 | 2650 | mutex_lock(&frontend_mutex); |
1da177e4 | 2651 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2652 | |
1da177e4 LT |
2653 | /* fe is invalid now */ |
2654 | kfree(fepriv); | |
3593cab5 | 2655 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2656 | return 0; |
2657 | } | |
2658 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2659 | |
149ef72d | 2660 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2661 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2662 | { | |
2663 | void *ptr; | |
2664 | ||
2665 | if (fe->ops.release_sec) { | |
2666 | fe->ops.release_sec(fe); | |
2667 | symbol_put_addr(fe->ops.release_sec); | |
2668 | } | |
2669 | if (fe->ops.tuner_ops.release) { | |
2670 | fe->ops.tuner_ops.release(fe); | |
2671 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2672 | } | |
2426a27e MK |
2673 | if (fe->ops.analog_ops.release) { |
2674 | fe->ops.analog_ops.release(fe); | |
2675 | symbol_put_addr(fe->ops.analog_ops.release); | |
2676 | } | |
f52a838b AQ |
2677 | ptr = (void*)fe->ops.release; |
2678 | if (ptr) { | |
2679 | fe->ops.release(fe); | |
2680 | symbol_put_addr(ptr); | |
2681 | } | |
2682 | } | |
2683 | #else | |
2684 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2685 | { | |
2686 | if (fe->ops.release_sec) | |
2687 | fe->ops.release_sec(fe); | |
2688 | if (fe->ops.tuner_ops.release) | |
2689 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2690 | if (fe->ops.analog_ops.release) |
2691 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2692 | if (fe->ops.release) |
2693 | fe->ops.release(fe); | |
2694 | } | |
2695 | #endif | |
2696 | EXPORT_SYMBOL(dvb_frontend_detach); |