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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 LT |
68 | |
69 | #define dprintk if (dvb_frontend_debug) printk | |
70 | ||
71 | #define FESTATE_IDLE 1 | |
72 | #define FESTATE_RETUNE 2 | |
73 | #define FESTATE_TUNING_FAST 4 | |
74 | #define FESTATE_TUNING_SLOW 8 | |
75 | #define FESTATE_TUNED 16 | |
76 | #define FESTATE_ZIGZAG_FAST 32 | |
77 | #define FESTATE_ZIGZAG_SLOW 64 | |
78 | #define FESTATE_DISEQC 128 | |
01886255 | 79 | #define FESTATE_ERROR 256 |
1da177e4 LT |
80 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
81 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) | |
82 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) | |
83 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) | |
0249ef16 MA |
84 | |
85 | #define FE_ALGO_HW 1 | |
1da177e4 LT |
86 | /* |
87 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. | |
88 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. | |
89 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. | |
90 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. | |
91 | * FESTATE_TUNED. The frontend has successfully locked on. | |
92 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. | |
93 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. | |
94 | * FESTATE_DISEQC. A DISEQC command has just been issued. | |
95 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. | |
96 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. | |
97 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. | |
98 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. | |
99 | */ | |
100 | ||
e36309f5 MC |
101 | #define DVB_FE_NO_EXIT 0 |
102 | #define DVB_FE_NORMAL_EXIT 1 | |
103 | #define DVB_FE_DEVICE_REMOVED 2 | |
104 | ||
3593cab5 | 105 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
106 | |
107 | struct dvb_frontend_private { | |
108 | ||
36cb557a | 109 | /* thread/frontend values */ |
1da177e4 | 110 | struct dvb_device *dvbdev; |
a5959dbe | 111 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
112 | struct dvb_fe_events events; |
113 | struct semaphore sem; | |
114 | struct list_head list_head; | |
115 | wait_queue_head_t wait_queue; | |
8eec1429 | 116 | struct task_struct *thread; |
1da177e4 | 117 | unsigned long release_jiffies; |
36cb557a AQ |
118 | unsigned int exit; |
119 | unsigned int wakeup; | |
1da177e4 | 120 | fe_status_t status; |
400b7083 | 121 | unsigned long tune_mode_flags; |
36cb557a | 122 | unsigned int delay; |
86f40cc3 | 123 | unsigned int reinitialise; |
64454016 AQ |
124 | int tone; |
125 | int voltage; | |
36cb557a AQ |
126 | |
127 | /* swzigzag values */ | |
128 | unsigned int state; | |
129 | unsigned int bending; | |
130 | int lnb_drift; | |
131 | unsigned int inversion; | |
132 | unsigned int auto_step; | |
133 | unsigned int auto_sub_step; | |
134 | unsigned int started_auto_step; | |
135 | unsigned int min_delay; | |
136 | unsigned int max_drift; | |
137 | unsigned int step_size; | |
138 | int quality; | |
139 | unsigned int check_wrapped; | |
c59e7870 | 140 | enum dvbfe_search algo_status; |
1da177e4 LT |
141 | }; |
142 | ||
86f40cc3 | 143 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 144 | static int dtv_get_frontend(struct dvb_frontend *fe, |
a689e365 | 145 | struct dvb_frontend_parameters *p_out); |
556a0442 CR |
146 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
147 | struct dvb_frontend_parameters *p); | |
a689e365 MCC |
148 | |
149 | static bool has_get_frontend(struct dvb_frontend *fe) | |
150 | { | |
c065f5b4 | 151 | return fe->ops.get_frontend != NULL; |
a689e365 | 152 | } |
1da177e4 | 153 | |
5bfaadde MCC |
154 | /* |
155 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
156 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
157 | * otherwise, a DVBv3 call will fail. | |
158 | */ | |
159 | enum dvbv3_emulation_type { | |
160 | DVBV3_UNKNOWN, | |
161 | DVBV3_QPSK, | |
162 | DVBV3_QAM, | |
163 | DVBV3_OFDM, | |
164 | DVBV3_ATSC, | |
165 | }; | |
166 | ||
167 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
168 | { | |
169 | switch (delivery_system) { | |
170 | case SYS_DVBC_ANNEX_A: | |
171 | case SYS_DVBC_ANNEX_C: | |
172 | return DVBV3_QAM; | |
173 | case SYS_DVBS: | |
174 | case SYS_DVBS2: | |
175 | case SYS_TURBO: | |
176 | case SYS_ISDBS: | |
177 | case SYS_DSS: | |
178 | return DVBV3_QPSK; | |
179 | case SYS_DVBT: | |
180 | case SYS_DVBT2: | |
181 | case SYS_ISDBT: | |
182 | case SYS_DMBTH: | |
183 | return DVBV3_OFDM; | |
184 | case SYS_ATSC: | |
185 | case SYS_DVBC_ANNEX_B: | |
186 | return DVBV3_ATSC; | |
187 | case SYS_UNDEFINED: | |
188 | case SYS_ISDBC: | |
189 | case SYS_DVBH: | |
190 | case SYS_DAB: | |
191 | case SYS_ATSCMH: | |
192 | default: | |
193 | /* | |
194 | * Doesn't know how to emulate those types and/or | |
195 | * there's no frontend driver from this type yet | |
196 | * with some emulation code, so, we're not sure yet how | |
197 | * to handle them, or they're not compatible with a DVBv3 call. | |
198 | */ | |
199 | return DVBV3_UNKNOWN; | |
200 | } | |
201 | } | |
202 | ||
1da177e4 LT |
203 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
204 | { | |
0c53c70f | 205 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
206 | struct dvb_fe_events *events = &fepriv->events; |
207 | struct dvb_frontend_event *e; | |
208 | int wp; | |
209 | ||
46b4f7c1 | 210 | dprintk ("%s\n", __func__); |
1da177e4 | 211 | |
a689e365 | 212 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
7c61d80a | 213 | dtv_get_frontend(fe, &fepriv->parameters_out); |
1da177e4 | 214 | |
77b1e2fb | 215 | mutex_lock(&events->mtx); |
1da177e4 | 216 | |
77b1e2fb | 217 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
218 | if (wp == events->eventr) { |
219 | events->overflow = 1; | |
220 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
221 | } | |
222 | ||
223 | e = &events->events[events->eventw]; | |
77b1e2fb | 224 | e->status = status; |
a5959dbe | 225 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
226 | |
227 | events->eventw = wp; | |
228 | ||
03b76123 | 229 | mutex_unlock(&events->mtx); |
1da177e4 | 230 | |
1da177e4 LT |
231 | wake_up_interruptible (&events->wait_queue); |
232 | } | |
233 | ||
234 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
235 | struct dvb_frontend_event *event, int flags) | |
236 | { | |
0c53c70f | 237 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
238 | struct dvb_fe_events *events = &fepriv->events; |
239 | ||
46b4f7c1 | 240 | dprintk ("%s\n", __func__); |
1da177e4 LT |
241 | |
242 | if (events->overflow) { | |
243 | events->overflow = 0; | |
244 | return -EOVERFLOW; | |
245 | } | |
246 | ||
247 | if (events->eventw == events->eventr) { | |
248 | int ret; | |
249 | ||
250 | if (flags & O_NONBLOCK) | |
251 | return -EWOULDBLOCK; | |
252 | ||
253 | up(&fepriv->sem); | |
254 | ||
255 | ret = wait_event_interruptible (events->wait_queue, | |
256 | events->eventw != events->eventr); | |
257 | ||
258 | if (down_interruptible (&fepriv->sem)) | |
259 | return -ERESTARTSYS; | |
260 | ||
261 | if (ret < 0) | |
262 | return ret; | |
263 | } | |
264 | ||
77b1e2fb AO |
265 | mutex_lock(&events->mtx); |
266 | *event = events->events[events->eventr]; | |
1da177e4 | 267 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 268 | mutex_unlock(&events->mtx); |
1da177e4 LT |
269 | |
270 | return 0; | |
271 | } | |
272 | ||
20640bea AO |
273 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
274 | { | |
275 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
276 | struct dvb_fe_events *events = &fepriv->events; | |
277 | ||
278 | mutex_lock(&events->mtx); | |
279 | events->eventr = events->eventw; | |
280 | mutex_unlock(&events->mtx); | |
281 | } | |
282 | ||
1da177e4 LT |
283 | static void dvb_frontend_init(struct dvb_frontend *fe) |
284 | { | |
363c35fc | 285 | dprintk ("DVB: initialising adapter %i frontend %i (%s)...\n", |
1da177e4 | 286 | fe->dvb->num, |
363c35fc | 287 | fe->id, |
dea74869 PB |
288 | fe->ops.info.name); |
289 | ||
290 | if (fe->ops.init) | |
291 | fe->ops.init(fe); | |
292 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
293 | if (fe->ops.i2c_gate_ctrl) |
294 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
295 | fe->ops.tuner_ops.init(fe); |
296 | if (fe->ops.i2c_gate_ctrl) | |
297 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 298 | } |
1da177e4 LT |
299 | } |
300 | ||
86f40cc3 AQ |
301 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
302 | { | |
303 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
304 | ||
305 | fepriv->reinitialise = 1; | |
306 | dvb_frontend_wakeup(fe); | |
307 | } | |
308 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
309 | ||
36cb557a | 310 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 311 | { |
36cb557a | 312 | int q2; |
1da177e4 | 313 | |
46b4f7c1 | 314 | dprintk ("%s\n", __func__); |
1da177e4 | 315 | |
36cb557a AQ |
316 | if (locked) |
317 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
318 | else | |
319 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 320 | |
36cb557a AQ |
321 | q2 = fepriv->quality - 128; |
322 | q2 *= q2; | |
1da177e4 | 323 | |
36cb557a | 324 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
325 | } |
326 | ||
327 | /** | |
328 | * Performs automatic twiddling of frontend parameters. | |
329 | * | |
330 | * @param fe The frontend concerned. | |
331 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
332 | * @returns Number of complete iterations that have been performed. | |
333 | */ | |
36cb557a | 334 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
335 | { |
336 | int autoinversion; | |
337 | int ready = 0; | |
01886255 | 338 | int fe_set_err = 0; |
0c53c70f | 339 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
340 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
341 | int original_inversion = c->inversion; | |
342 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
343 | |
344 | /* are we using autoinversion? */ | |
dea74869 | 345 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 346 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
347 | |
348 | /* setup parameters correctly */ | |
349 | while(!ready) { | |
350 | /* calculate the lnb_drift */ | |
351 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
352 | ||
353 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
354 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
355 | fepriv->auto_step = 0; | |
356 | fepriv->auto_sub_step = 0; | |
357 | fepriv->lnb_drift = 0; | |
358 | } | |
359 | ||
360 | /* perform inversion and +/- zigzag */ | |
361 | switch(fepriv->auto_sub_step) { | |
362 | case 0: | |
363 | /* try with the current inversion and current drift setting */ | |
364 | ready = 1; | |
365 | break; | |
366 | ||
367 | case 1: | |
368 | if (!autoinversion) break; | |
369 | ||
370 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
371 | ready = 1; | |
372 | break; | |
373 | ||
374 | case 2: | |
375 | if (fepriv->lnb_drift == 0) break; | |
376 | ||
377 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
378 | ready = 1; | |
379 | break; | |
380 | ||
381 | case 3: | |
382 | if (fepriv->lnb_drift == 0) break; | |
383 | if (!autoinversion) break; | |
384 | ||
385 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
386 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
387 | ready = 1; | |
388 | break; | |
389 | ||
390 | default: | |
391 | fepriv->auto_step++; | |
392 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
393 | break; | |
394 | } | |
395 | ||
396 | if (!ready) fepriv->auto_sub_step++; | |
397 | } | |
398 | ||
399 | /* if this attempt would hit where we started, indicate a complete | |
400 | * iteration has occurred */ | |
401 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
402 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
403 | return 1; | |
404 | } | |
405 | ||
406 | dprintk("%s: drift:%i inversion:%i auto_step:%i " | |
407 | "auto_sub_step:%i started_auto_step:%i\n", | |
46b4f7c1 | 408 | __func__, fepriv->lnb_drift, fepriv->inversion, |
1da177e4 LT |
409 | fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step); |
410 | ||
411 | /* set the frontend itself */ | |
ac3852c4 | 412 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 413 | if (autoinversion) |
ac3852c4 MCC |
414 | c->inversion = fepriv->inversion; |
415 | tmp = *c; | |
dea74869 | 416 | if (fe->ops.set_frontend) |
bc9cd273 | 417 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 418 | *c = tmp; |
01886255 JG |
419 | if (fe_set_err < 0) { |
420 | fepriv->state = FESTATE_ERROR; | |
421 | return fe_set_err; | |
422 | } | |
1da177e4 | 423 | |
ac3852c4 MCC |
424 | c->frequency = original_frequency; |
425 | c->inversion = original_inversion; | |
1da177e4 LT |
426 | |
427 | fepriv->auto_sub_step++; | |
428 | return 0; | |
429 | } | |
430 | ||
36cb557a AQ |
431 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
432 | { | |
30d9464c | 433 | fe_status_t s = 0; |
01886255 | 434 | int retval = 0; |
36cb557a | 435 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 436 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
437 | |
438 | /* if we've got no parameters, just keep idling */ | |
439 | if (fepriv->state & FESTATE_IDLE) { | |
440 | fepriv->delay = 3*HZ; | |
441 | fepriv->quality = 0; | |
442 | return; | |
443 | } | |
444 | ||
445 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
446 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
447 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 448 | tmp = *c; |
dea74869 | 449 | if (fe->ops.set_frontend) |
bc9cd273 | 450 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 451 | *c = tmp; |
01886255 JG |
452 | if (retval < 0) |
453 | fepriv->state = FESTATE_ERROR; | |
454 | else | |
455 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
456 | } |
457 | fepriv->delay = 3*HZ; | |
458 | fepriv->quality = 0; | |
459 | return; | |
460 | } | |
461 | ||
462 | /* get the frontend status */ | |
463 | if (fepriv->state & FESTATE_RETUNE) { | |
464 | s = 0; | |
465 | } else { | |
dea74869 PB |
466 | if (fe->ops.read_status) |
467 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
468 | if (s != fepriv->status) { |
469 | dvb_frontend_add_event(fe, s); | |
470 | fepriv->status = s; | |
471 | } | |
472 | } | |
473 | ||
474 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
475 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
476 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
477 | fepriv->state = FESTATE_TUNED; | |
478 | ||
479 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 480 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
481 | (c->inversion == INVERSION_AUTO)) { |
482 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
483 | } |
484 | return; | |
485 | } | |
486 | ||
487 | /* if we are tuned already, check we're still locked */ | |
488 | if (fepriv->state & FESTATE_TUNED) { | |
489 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
490 | ||
491 | /* we're tuned, and the lock is still good... */ | |
492 | if (s & FE_HAS_LOCK) { | |
493 | return; | |
494 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
495 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
496 | fepriv->started_auto_step = fepriv->auto_step; | |
497 | fepriv->check_wrapped = 0; | |
498 | } | |
499 | } | |
500 | ||
501 | /* don't actually do anything if we're in the LOSTLOCK state, | |
502 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
503 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 504 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
505 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
506 | return; | |
507 | } | |
508 | ||
509 | /* don't do anything if we're in the DISEQC state, since this | |
510 | * might be someone with a motorized dish controlled by DISEQC. | |
511 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
512 | if (fepriv->state & FESTATE_DISEQC) { | |
513 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
514 | return; | |
515 | } | |
516 | ||
517 | /* if we're in the RETUNE state, set everything up for a brand | |
518 | * new scan, keeping the current inversion setting, as the next | |
519 | * tune is _very_ likely to require the same */ | |
520 | if (fepriv->state & FESTATE_RETUNE) { | |
521 | fepriv->lnb_drift = 0; | |
522 | fepriv->auto_step = 0; | |
523 | fepriv->auto_sub_step = 0; | |
524 | fepriv->started_auto_step = 0; | |
525 | fepriv->check_wrapped = 0; | |
526 | } | |
527 | ||
528 | /* fast zigzag. */ | |
529 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
530 | fepriv->delay = fepriv->min_delay; | |
531 | ||
2030c032 | 532 | /* perform a tune */ |
01886255 JG |
533 | retval = dvb_frontend_swzigzag_autotune(fe, |
534 | fepriv->check_wrapped); | |
535 | if (retval < 0) { | |
536 | return; | |
537 | } else if (retval) { | |
36cb557a AQ |
538 | /* OK, if we've run out of trials at the fast speed. |
539 | * Drop back to slow for the _next_ attempt */ | |
540 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
541 | fepriv->started_auto_step = fepriv->auto_step; | |
542 | return; | |
543 | } | |
544 | fepriv->check_wrapped = 1; | |
545 | ||
546 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
547 | * This ensures we cannot return from an | |
548 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
549 | * occurs */ | |
550 | if (fepriv->state & FESTATE_RETUNE) { | |
551 | fepriv->state = FESTATE_TUNING_FAST; | |
552 | } | |
553 | } | |
554 | ||
555 | /* slow zigzag */ | |
556 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
557 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
558 | ||
559 | /* Note: don't bother checking for wrapping; we stay in this | |
560 | * state until we get a lock */ | |
561 | dvb_frontend_swzigzag_autotune(fe, 0); | |
562 | } | |
563 | } | |
564 | ||
1da177e4 LT |
565 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
566 | { | |
0c53c70f | 567 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 568 | |
e36309f5 | 569 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
570 | return 1; |
571 | ||
572 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 573 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 574 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
575 | return 1; |
576 | ||
577 | return 0; | |
578 | } | |
579 | ||
580 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
581 | { | |
0c53c70f | 582 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
583 | |
584 | if (fepriv->wakeup) { | |
585 | fepriv->wakeup = 0; | |
586 | return 1; | |
587 | } | |
588 | return dvb_frontend_is_exiting(fe); | |
589 | } | |
590 | ||
591 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
592 | { | |
0c53c70f | 593 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
594 | |
595 | fepriv->wakeup = 1; | |
596 | wake_up_interruptible(&fepriv->wait_queue); | |
597 | } | |
598 | ||
1da177e4 LT |
599 | static int dvb_frontend_thread(void *data) |
600 | { | |
0c53c70f JS |
601 | struct dvb_frontend *fe = data; |
602 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 603 | fe_status_t s; |
c59e7870 MA |
604 | enum dvbfe_algo algo; |
605 | ||
7e072221 | 606 | bool re_tune = false; |
1da177e4 | 607 | |
46b4f7c1 | 608 | dprintk("%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 */ |
e36309f5 | 630 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
631 | break; |
632 | } | |
633 | ||
8eec1429 | 634 | if (try_to_freeze()) |
6591691b | 635 | goto restart; |
1da177e4 LT |
636 | |
637 | if (down_interruptible(&fepriv->sem)) | |
638 | break; | |
639 | ||
86f40cc3 AQ |
640 | if (fepriv->reinitialise) { |
641 | dvb_frontend_init(fe); | |
42f4e774 | 642 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 643 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 644 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 645 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
646 | fepriv->reinitialise = 0; |
647 | } | |
648 | ||
36cb557a | 649 | /* do an iteration of the tuning loop */ |
d772bd03 | 650 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
651 | algo = fe->ops.get_frontend_algo(fe); |
652 | switch (algo) { | |
653 | case DVBFE_ALGO_HW: | |
654 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); | |
c59e7870 | 655 | |
d772bd03 | 656 | if (fepriv->state & FESTATE_RETUNE) { |
c59e7870 | 657 | dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 658 | re_tune = true; |
d772bd03 | 659 | fepriv->state = FESTATE_TUNED; |
45145b67 SA |
660 | } else { |
661 | re_tune = false; | |
d772bd03 MA |
662 | } |
663 | ||
c59e7870 | 664 | if (fe->ops.tune) |
7e072221 | 665 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 666 | |
2fac9a0f | 667 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
c59e7870 | 668 | dprintk("%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
669 | dvb_frontend_add_event(fe, s); |
670 | fepriv->status = s; | |
671 | } | |
c59e7870 MA |
672 | break; |
673 | case DVBFE_ALGO_SW: | |
674 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); | |
70d90635 | 675 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
676 | break; |
677 | case DVBFE_ALGO_CUSTOM: | |
c59e7870 MA |
678 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
679 | if (fepriv->state & FESTATE_RETUNE) { | |
680 | dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__); | |
681 | fepriv->state = FESTATE_TUNED; | |
682 | } | |
683 | /* Case where we are going to search for a carrier | |
684 | * User asked us to retune again for some reason, possibly | |
685 | * requesting a search with a new set of parameters | |
686 | */ | |
687 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 688 | if (fe->ops.search) { |
41da5320 | 689 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
690 | /* We did do a search as was requested, the flags are |
691 | * now unset as well and has the flags wrt to search. | |
692 | */ | |
7bcbdf38 AJ |
693 | } else { |
694 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
695 | } | |
c59e7870 MA |
696 | } |
697 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 698 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
699 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
700 | fepriv->delay = HZ / 2; | |
701 | } | |
556a0442 | 702 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); |
7bcbdf38 AJ |
703 | fe->ops.read_status(fe, &s); |
704 | if (s != fepriv->status) { | |
705 | dvb_frontend_add_event(fe, s); /* update event list */ | |
706 | fepriv->status = s; | |
707 | if (!(s & FE_HAS_LOCK)) { | |
708 | fepriv->delay = HZ / 10; | |
709 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
710 | } else { | |
711 | fepriv->delay = 60 * HZ; | |
712 | } | |
c59e7870 MA |
713 | } |
714 | break; | |
715 | default: | |
716 | dprintk("%s: UNDEFINED ALGO !\n", __func__); | |
717 | break; | |
718 | } | |
719 | } else { | |
4a4edcca | 720 | dvb_frontend_swzigzag(fe); |
c59e7870 | 721 | } |
1da177e4 LT |
722 | } |
723 | ||
608f62d6 OE |
724 | if (dvb_powerdown_on_sleep) { |
725 | if (fe->ops.set_voltage) | |
726 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 727 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
728 | if (fe->ops.i2c_gate_ctrl) |
729 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
730 | fe->ops.tuner_ops.sleep(fe); |
731 | if (fe->ops.i2c_gate_ctrl) | |
732 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 733 | } |
dea74869 PB |
734 | if (fe->ops.sleep) |
735 | fe->ops.sleep(fe); | |
1da177e4 LT |
736 | } |
737 | ||
8eec1429 | 738 | fepriv->thread = NULL; |
e36309f5 MC |
739 | if (kthread_should_stop()) |
740 | fepriv->exit = DVB_FE_DEVICE_REMOVED; | |
741 | else | |
742 | fepriv->exit = DVB_FE_NO_EXIT; | |
1da177e4 LT |
743 | mb(); |
744 | ||
745 | dvb_frontend_wakeup(fe); | |
746 | return 0; | |
747 | } | |
748 | ||
749 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
750 | { | |
0c53c70f | 751 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 752 | |
46b4f7c1 | 753 | dprintk ("%s\n", __func__); |
1da177e4 | 754 | |
e36309f5 | 755 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
756 | mb(); |
757 | ||
8eec1429 | 758 | if (!fepriv->thread) |
1da177e4 LT |
759 | return; |
760 | ||
8eec1429 | 761 | kthread_stop(fepriv->thread); |
ca5be9cd | 762 | |
a0a4714c | 763 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
764 | fepriv->state = FESTATE_IDLE; |
765 | ||
766 | /* paranoia check in case a signal arrived */ | |
8eec1429 HP |
767 | if (fepriv->thread) |
768 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", | |
769 | fepriv->thread); | |
1da177e4 LT |
770 | } |
771 | ||
83b75b04 N |
772 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
773 | { | |
774 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
775 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
776 | curtime.tv_usec - lasttime.tv_usec); | |
777 | } | |
778 | EXPORT_SYMBOL(timeval_usec_diff); | |
779 | ||
780 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
781 | { | |
782 | curtime->tv_usec += add_usec; | |
783 | if (curtime->tv_usec >= 1000000) { | |
784 | curtime->tv_usec -= 1000000; | |
785 | curtime->tv_sec++; | |
786 | } | |
787 | } | |
788 | ||
789 | /* | |
790 | * Sleep until gettimeofday() > waketime + add_usec | |
791 | * This needs to be as precise as possible, but as the delay is | |
792 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
793 | * followed by usleep (normally a busy-wait loop) for the remainder | |
794 | */ | |
795 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
796 | { | |
797 | struct timeval lasttime; | |
798 | s32 delta, newdelta; | |
799 | ||
800 | timeval_usec_add(waketime, add_usec); | |
801 | ||
802 | do_gettimeofday(&lasttime); | |
803 | delta = timeval_usec_diff(lasttime, *waketime); | |
804 | if (delta > 2500) { | |
805 | msleep((delta - 1500) / 1000); | |
806 | do_gettimeofday(&lasttime); | |
807 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
808 | delta = (newdelta > delta) ? 0 : newdelta; | |
809 | } | |
810 | if (delta > 0) | |
811 | udelay(delta); | |
812 | } | |
813 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
814 | ||
1da177e4 LT |
815 | static int dvb_frontend_start(struct dvb_frontend *fe) |
816 | { | |
817 | int ret; | |
0c53c70f | 818 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 819 | struct task_struct *fe_thread; |
1da177e4 | 820 | |
46b4f7c1 | 821 | dprintk ("%s\n", __func__); |
1da177e4 | 822 | |
8eec1429 | 823 | if (fepriv->thread) { |
e36309f5 | 824 | if (fepriv->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
825 | return 0; |
826 | else | |
827 | dvb_frontend_stop (fe); | |
828 | } | |
829 | ||
830 | if (signal_pending(current)) | |
831 | return -EINTR; | |
832 | if (down_interruptible (&fepriv->sem)) | |
833 | return -EINTR; | |
834 | ||
835 | fepriv->state = FESTATE_IDLE; | |
e36309f5 | 836 | fepriv->exit = DVB_FE_NO_EXIT; |
8eec1429 | 837 | fepriv->thread = NULL; |
1da177e4 LT |
838 | mb(); |
839 | ||
8eec1429 | 840 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 841 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
842 | if (IS_ERR(fe_thread)) { |
843 | ret = PTR_ERR(fe_thread); | |
844 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); | |
1da177e4 LT |
845 | up(&fepriv->sem); |
846 | return ret; | |
847 | } | |
8eec1429 | 848 | fepriv->thread = fe_thread; |
1da177e4 LT |
849 | return 0; |
850 | } | |
851 | ||
2030c032 | 852 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
853 | u32 *freq_min, u32 *freq_max) |
854 | { | |
855 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
856 | ||
857 | if (fe->ops.info.frequency_max == 0) | |
858 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
859 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
860 | *freq_max = fe->ops.info.frequency_max; | |
861 | else | |
862 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
863 | ||
864 | if (*freq_min == 0 || *freq_max == 0) | |
363c35fc ST |
865 | printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
866 | fe->dvb->num,fe->id); | |
c471b331 OE |
867 | } |
868 | ||
5bfaadde | 869 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 870 | { |
5bfaadde | 871 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
872 | u32 freq_min; |
873 | u32 freq_max; | |
874 | ||
1fab46f0 | 875 | /* range check: frequency */ |
2030c032 | 876 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
877 | if ((freq_min && c->frequency < freq_min) || |
878 | (freq_max && c->frequency > freq_max)) { | |
363c35fc | 879 | printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
5bfaadde | 880 | fe->dvb->num, fe->id, c->frequency, freq_min, freq_max); |
1fab46f0 OE |
881 | return -EINVAL; |
882 | } | |
883 | ||
884 | /* range check: symbol rate */ | |
5bfaadde MCC |
885 | switch (c->delivery_system) { |
886 | case SYS_DVBS: | |
887 | case SYS_DVBS2: | |
888 | case SYS_TURBO: | |
889 | case SYS_DVBC_ANNEX_A: | |
890 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 891 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 892 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 893 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 894 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
363c35fc | 895 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
5bfaadde MCC |
896 | fe->dvb->num, fe->id, c->symbol_rate, |
897 | fe->ops.info.symbol_rate_min, | |
898 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
899 | return -EINVAL; |
900 | } | |
5bfaadde MCC |
901 | default: |
902 | break; | |
1fab46f0 OE |
903 | } |
904 | ||
905 | return 0; | |
906 | } | |
907 | ||
b6e760f3 PB |
908 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
909 | { | |
50727719 | 910 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 | 911 | int i; |
149709f5 | 912 | u32 delsys; |
b6e760f3 | 913 | |
149709f5 | 914 | delsys = c->delivery_system; |
50727719 | 915 | memset(c, 0, sizeof(struct dtv_frontend_properties)); |
149709f5 | 916 | c->delivery_system = delsys; |
50727719 AO |
917 | |
918 | c->state = DTV_CLEAR; | |
26c924fe | 919 | |
5bfaadde MCC |
920 | dprintk("%s() Clearing cache for delivery system %d\n", __func__, |
921 | c->delivery_system); | |
26c924fe | 922 | |
50727719 | 923 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 924 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
925 | c->guard_interval = GUARD_INTERVAL_AUTO; |
926 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 927 | c->symbol_rate = 0; |
50727719 AO |
928 | c->code_rate_HP = FEC_AUTO; |
929 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 930 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 931 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 932 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
933 | c->sectone = SEC_TONE_OFF; |
934 | c->pilot = PILOT_AUTO; | |
50727719 | 935 | |
a520ca97 MCC |
936 | c->isdbt_partial_reception = 0; |
937 | c->isdbt_sb_mode = 0; | |
938 | c->isdbt_sb_subchannel = 0; | |
939 | c->isdbt_sb_segment_idx = 0; | |
940 | c->isdbt_sb_segment_count = 0; | |
941 | c->isdbt_layer_enabled = 0; | |
b6e760f3 | 942 | for (i = 0; i < 3; i++) { |
50727719 AO |
943 | c->layer[i].fec = FEC_AUTO; |
944 | c->layer[i].modulation = QAM_AUTO; | |
a520ca97 MCC |
945 | c->layer[i].interleaving = 0; |
946 | c->layer[i].segment_count = 0; | |
b6e760f3 PB |
947 | } |
948 | ||
26c924fe MCC |
949 | c->isdbs_ts_id = 0; |
950 | c->dvbt2_plp_id = 0; | |
951 | ||
5bfaadde MCC |
952 | switch (c->delivery_system) { |
953 | case SYS_DVBS: | |
954 | case SYS_DVBS2: | |
955 | case SYS_TURBO: | |
956 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
957 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
958 | break; | |
959 | case SYS_ATSC: | |
960 | c->modulation = VSB_8; | |
961 | break; | |
962 | default: | |
963 | c->modulation = QAM_AUTO; | |
964 | break; | |
965 | } | |
966 | ||
b6e760f3 PB |
967 | return 0; |
968 | } | |
969 | ||
970 | #define _DTV_CMD(n, s, b) \ | |
971 | [n] = { \ | |
972 | .name = #n, \ | |
973 | .cmd = n, \ | |
974 | .set = s,\ | |
975 | .buffer = b \ | |
976 | } | |
977 | ||
ec05a642 | 978 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
979 | _DTV_CMD(DTV_TUNE, 1, 0), |
980 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
981 | |
982 | /* Set */ | |
06d3a396 MCC |
983 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
984 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
985 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
986 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
987 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
988 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
989 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
990 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
991 | _DTV_CMD(DTV_TONE, 1, 0), | |
992 | _DTV_CMD(DTV_PILOT, 1, 0), | |
993 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
994 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
995 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
996 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
997 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
998 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
999 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
b6e760f3 PB |
1000 | |
1001 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
1002 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
1003 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1004 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1005 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1006 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1007 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1008 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1009 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1010 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1011 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1012 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1013 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1014 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1015 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1016 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1017 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1018 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1019 | ||
98293ef3 | 1020 | _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0), |
ec05a642 | 1021 | _DTV_CMD(DTV_DVBT2_PLP_ID, 1, 0), |
98293ef3 | 1022 | |
6b73eeaf | 1023 | /* Get */ |
06d3a396 MCC |
1024 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1025 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
1026 | _DTV_CMD(DTV_CODE_RATE_HP, 0, 0), | |
1027 | _DTV_CMD(DTV_CODE_RATE_LP, 0, 0), | |
1028 | _DTV_CMD(DTV_GUARD_INTERVAL, 0, 0), | |
1029 | _DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0), | |
1030 | _DTV_CMD(DTV_HIERARCHY, 0, 0), | |
ba2780c7 MA |
1031 | |
1032 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
6b73eeaf ST |
1033 | }; |
1034 | ||
072ce0c5 | 1035 | static void dtv_property_dump(struct dtv_property *tvp) |
6b73eeaf ST |
1036 | { |
1037 | int i; | |
1038 | ||
106ff9e0 | 1039 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
a1bc84c0 | 1040 | printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n", |
4aae8efb DB |
1041 | __func__, tvp->cmd); |
1042 | return; | |
1043 | } | |
1044 | ||
a1bc84c0 ST |
1045 | dprintk("%s() tvp.cmd = 0x%08x (%s)\n" |
1046 | ,__func__ | |
6b73eeaf | 1047 | ,tvp->cmd |
56f0680a | 1048 | ,dtv_cmds[ tvp->cmd ].name); |
6b73eeaf | 1049 | |
56f0680a | 1050 | if(dtv_cmds[ tvp->cmd ].buffer) { |
6b73eeaf | 1051 | |
a1bc84c0 ST |
1052 | dprintk("%s() tvp.u.buffer.len = 0x%02x\n" |
1053 | ,__func__ | |
6b73eeaf ST |
1054 | ,tvp->u.buffer.len); |
1055 | ||
1056 | for(i = 0; i < tvp->u.buffer.len; i++) | |
a1bc84c0 ST |
1057 | dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
1058 | ,__func__ | |
6b73eeaf ST |
1059 | ,i |
1060 | ,tvp->u.buffer.data[i]); | |
1061 | ||
1062 | } else | |
a1bc84c0 | 1063 | dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data); |
6b73eeaf ST |
1064 | } |
1065 | ||
ee33c525 ST |
1066 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1067 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1068 | * it's being used for the legacy or new API, reducing code and complexity. | |
1069 | */ | |
5bfaadde MCC |
1070 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1071 | struct dtv_frontend_properties *c, | |
1072 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1073 | { |
ee33c525 ST |
1074 | c->frequency = p->frequency; |
1075 | c->inversion = p->inversion; | |
1076 | ||
5bfaadde MCC |
1077 | switch (dvbv3_type(c->delivery_system)) { |
1078 | case DVBV3_QPSK: | |
1079 | dprintk("%s() Preparing QPSK req\n", __func__); | |
ee33c525 ST |
1080 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1081 | c->fec_inner = p->u.qpsk.fec_inner; | |
1082 | break; | |
5bfaadde MCC |
1083 | case DVBV3_QAM: |
1084 | dprintk("%s() Preparing QAM req\n", __func__); | |
ee33c525 ST |
1085 | c->symbol_rate = p->u.qam.symbol_rate; |
1086 | c->fec_inner = p->u.qam.fec_inner; | |
1087 | c->modulation = p->u.qam.modulation; | |
1088 | break; | |
5bfaadde MCC |
1089 | case DVBV3_OFDM: |
1090 | dprintk("%s() Preparing OFDM req\n", __func__); | |
9a27e6a0 MCC |
1091 | switch (p->u.ofdm.bandwidth) { |
1092 | case BANDWIDTH_10_MHZ: | |
1093 | c->bandwidth_hz = 10000000; | |
1094 | break; | |
1095 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1096 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1097 | break; |
1098 | case BANDWIDTH_7_MHZ: | |
1099 | c->bandwidth_hz = 7000000; | |
1100 | break; | |
1101 | case BANDWIDTH_6_MHZ: | |
1102 | c->bandwidth_hz = 6000000; | |
1103 | break; | |
1104 | case BANDWIDTH_5_MHZ: | |
1105 | c->bandwidth_hz = 5000000; | |
1106 | break; | |
1107 | case BANDWIDTH_1_712_MHZ: | |
1108 | c->bandwidth_hz = 1712000; | |
1109 | break; | |
1110 | case BANDWIDTH_AUTO: | |
75b7f943 | 1111 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1112 | } |
1113 | ||
ee33c525 ST |
1114 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1115 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1116 | c->modulation = p->u.ofdm.constellation; | |
1117 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1118 | c->guard_interval = p->u.ofdm.guard_interval; | |
1119 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1120 | break; | |
5bfaadde MCC |
1121 | case DVBV3_ATSC: |
1122 | dprintk("%s() Preparing ATSC req\n", __func__); | |
ee33c525 | 1123 | c->modulation = p->u.vsb.modulation; |
80a773c9 ST |
1124 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1125 | c->delivery_system = SYS_ATSC; | |
1126 | else | |
1127 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1128 | break; |
5bfaadde MCC |
1129 | case DVBV3_UNKNOWN: |
1130 | printk(KERN_ERR | |
1131 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1132 | __func__, c->delivery_system); | |
1133 | return -EINVAL; | |
ee33c525 | 1134 | } |
5bfaadde MCC |
1135 | |
1136 | return 0; | |
ee33c525 ST |
1137 | } |
1138 | ||
d5748f10 ST |
1139 | /* Ensure the cached values are set correctly in the frontend |
1140 | * legacy tuning structures, for the advanced tuning API. | |
1141 | */ | |
5bfaadde | 1142 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
a689e365 | 1143 | struct dvb_frontend_parameters *p) |
6b73eeaf | 1144 | { |
15cc2bb3 | 1145 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1146 | |
d5748f10 ST |
1147 | p->frequency = c->frequency; |
1148 | p->inversion = c->inversion; | |
6b73eeaf | 1149 | |
5bfaadde MCC |
1150 | switch (dvbv3_type(c->delivery_system)) { |
1151 | case DVBV3_UNKNOWN: | |
1152 | printk(KERN_ERR | |
1153 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1154 | __func__, c->delivery_system); | |
1155 | return -EINVAL; | |
1156 | case DVBV3_QPSK: | |
a1bc84c0 | 1157 | dprintk("%s() Preparing QPSK req\n", __func__); |
d5748f10 ST |
1158 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1159 | p->u.qpsk.fec_inner = c->fec_inner; | |
1160 | break; | |
5bfaadde | 1161 | case DVBV3_QAM: |
a1bc84c0 | 1162 | dprintk("%s() Preparing QAM req\n", __func__); |
d5748f10 ST |
1163 | p->u.qam.symbol_rate = c->symbol_rate; |
1164 | p->u.qam.fec_inner = c->fec_inner; | |
1165 | p->u.qam.modulation = c->modulation; | |
1166 | break; | |
5bfaadde | 1167 | case DVBV3_OFDM: |
a1bc84c0 | 1168 | dprintk("%s() Preparing OFDM req\n", __func__); |
5bfaadde | 1169 | |
9a27e6a0 MCC |
1170 | switch (c->bandwidth_hz) { |
1171 | case 10000000: | |
1172 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1173 | break; | |
1174 | case 8000000: | |
75b7f943 | 1175 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1176 | break; |
1177 | case 7000000: | |
1178 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1179 | break; | |
1180 | case 6000000: | |
1181 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1182 | break; | |
1183 | case 5000000: | |
1184 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1185 | break; | |
1186 | case 1712000: | |
1187 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1188 | break; | |
1189 | case 0: | |
1190 | default: | |
75b7f943 | 1191 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1192 | } |
d5748f10 ST |
1193 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1194 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1195 | p->u.ofdm.constellation = c->modulation; | |
1196 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1197 | p->u.ofdm.guard_interval = c->guard_interval; | |
1198 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1199 | break; | |
5bfaadde | 1200 | case DVBV3_ATSC: |
a1bc84c0 | 1201 | dprintk("%s() Preparing VSB req\n", __func__); |
d5748f10 ST |
1202 | p->u.vsb.modulation = c->modulation; |
1203 | break; | |
1204 | } | |
5bfaadde | 1205 | return 0; |
6b73eeaf ST |
1206 | } |
1207 | ||
a689e365 MCC |
1208 | /** |
1209 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1210 | * @fe: struct dvb_frontend pointer | |
1211 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1212 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1213 | * | |
1214 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1215 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1216 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1217 | */ | |
1218 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
a689e365 MCC |
1219 | struct dvb_frontend_parameters *p_out) |
1220 | { | |
a689e365 MCC |
1221 | int r; |
1222 | ||
a689e365 | 1223 | if (fe->ops.get_frontend) { |
7c61d80a | 1224 | r = fe->ops.get_frontend(fe); |
a689e365 MCC |
1225 | if (unlikely(r < 0)) |
1226 | return r; | |
7c61d80a | 1227 | if (p_out) |
a689e365 MCC |
1228 | dtv_property_legacy_params_sync(fe, p_out); |
1229 | return 0; | |
1230 | } | |
1231 | ||
7c61d80a | 1232 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1233 | return 0; |
a689e365 MCC |
1234 | } |
1235 | ||
16ef8def | 1236 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1237 | unsigned int cmd, void *parg); |
16ef8def | 1238 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1239 | unsigned int cmd, void *parg); |
1240 | ||
072ce0c5 | 1241 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1242 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1243 | struct dtv_property *tvp, |
16ef8def | 1244 | struct file *file) |
363429a0 | 1245 | { |
5bfaadde | 1246 | int r, ncaps; |
bfbf2dae | 1247 | |
363429a0 | 1248 | switch(tvp->cmd) { |
ba2780c7 | 1249 | case DTV_ENUM_DELSYS: |
5bfaadde MCC |
1250 | ncaps = 0; |
1251 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1252 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; | |
1253 | ncaps++; | |
1254 | } | |
1255 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1256 | break; |
363429a0 | 1257 | case DTV_FREQUENCY: |
50727719 | 1258 | tvp->u.data = c->frequency; |
363429a0 ST |
1259 | break; |
1260 | case DTV_MODULATION: | |
50727719 | 1261 | tvp->u.data = c->modulation; |
363429a0 | 1262 | break; |
75b7f943 | 1263 | case DTV_BANDWIDTH_HZ: |
50727719 | 1264 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1265 | break; |
1266 | case DTV_INVERSION: | |
50727719 | 1267 | tvp->u.data = c->inversion; |
363429a0 ST |
1268 | break; |
1269 | case DTV_SYMBOL_RATE: | |
50727719 | 1270 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1271 | break; |
1272 | case DTV_INNER_FEC: | |
50727719 | 1273 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1274 | break; |
1275 | case DTV_PILOT: | |
50727719 | 1276 | tvp->u.data = c->pilot; |
363429a0 ST |
1277 | break; |
1278 | case DTV_ROLLOFF: | |
50727719 | 1279 | tvp->u.data = c->rolloff; |
363429a0 ST |
1280 | break; |
1281 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1282 | tvp->u.data = c->delivery_system; |
363429a0 | 1283 | break; |
363429a0 | 1284 | case DTV_VOLTAGE: |
50727719 | 1285 | tvp->u.data = c->voltage; |
363429a0 ST |
1286 | break; |
1287 | case DTV_TONE: | |
50727719 | 1288 | tvp->u.data = c->sectone; |
363429a0 | 1289 | break; |
eacf8d8d ST |
1290 | case DTV_API_VERSION: |
1291 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1292 | break; | |
a4de91be | 1293 | case DTV_CODE_RATE_HP: |
50727719 | 1294 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1295 | break; |
1296 | case DTV_CODE_RATE_LP: | |
50727719 | 1297 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1298 | break; |
b87625f0 | 1299 | case DTV_GUARD_INTERVAL: |
50727719 | 1300 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1301 | break; |
1302 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1303 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1304 | break; |
ef526f42 | 1305 | case DTV_HIERARCHY: |
50727719 | 1306 | tvp->u.data = c->hierarchy; |
ef526f42 | 1307 | break; |
b6e760f3 PB |
1308 | |
1309 | /* ISDB-T Support here */ | |
1310 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1311 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1312 | break; |
1313 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1314 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1315 | break; |
1316 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1317 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1318 | break; |
1319 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1320 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1321 | break; |
1322 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1323 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1324 | break; |
e7b7949a | 1325 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1326 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1327 | break; |
b6e760f3 | 1328 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1329 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1330 | break; |
1331 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1332 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1333 | break; |
1334 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1335 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1336 | break; |
1337 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1338 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1339 | break; |
1340 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1341 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1342 | break; |
1343 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1344 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1345 | break; |
1346 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1347 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1348 | break; |
1349 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1350 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1351 | break; |
1352 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1353 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1354 | break; |
1355 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1356 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1357 | break; |
1358 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1359 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1360 | break; |
1361 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1362 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1363 | break; |
98293ef3 | 1364 | case DTV_ISDBS_TS_ID: |
50727719 | 1365 | tvp->u.data = c->isdbs_ts_id; |
98293ef3 | 1366 | break; |
94d56ffa | 1367 | case DTV_DVBT2_PLP_ID: |
50727719 | 1368 | tvp->u.data = c->dvbt2_plp_id; |
94d56ffa | 1369 | break; |
363429a0 | 1370 | default: |
aff8ab5c | 1371 | return -EINVAL; |
363429a0 ST |
1372 | } |
1373 | ||
e23d9ae3 AO |
1374 | /* Allow the frontend to override outgoing properties */ |
1375 | if (fe->ops.get_property) { | |
1376 | r = fe->ops.get_property(fe, tvp); | |
1377 | if (r < 0) | |
1378 | return r; | |
1379 | } | |
1380 | ||
639544d7 MCC |
1381 | dtv_property_dump(tvp); |
1382 | ||
aff8ab5c | 1383 | return 0; |
363429a0 ST |
1384 | } |
1385 | ||
5bfaadde MCC |
1386 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1387 | ||
04be0f76 MCC |
1388 | static bool is_dvbv3_delsys(u32 delsys) |
1389 | { | |
1390 | bool status; | |
1391 | ||
1392 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || | |
1393 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
1394 | ||
1395 | return status; | |
1396 | } | |
1397 | ||
1398 | static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system) | |
1399 | { | |
1400 | int ncaps, i; | |
1401 | u32 delsys = SYS_UNDEFINED; | |
1402 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1403 | enum dvbv3_emulation_type type; | |
1404 | ||
f4b1952a MCC |
1405 | /* |
1406 | * It was reported that some old DVBv5 applications were | |
1407 | * filling delivery_system with SYS_UNDEFINED. If this happens, | |
1408 | * assume that the application wants to use the first supported | |
1409 | * delivery system. | |
1410 | */ | |
1411 | if (c->delivery_system == SYS_UNDEFINED) | |
1412 | c->delivery_system = fe->ops.delsys[0]; | |
1413 | ||
04be0f76 MCC |
1414 | if (desired_system == SYS_UNDEFINED) { |
1415 | /* | |
1416 | * A DVBv3 call doesn't know what's the desired system. | |
37fa53c6 MCC |
1417 | * Also, DVBv3 applications don't know that ops.info->type |
1418 | * could be changed, and they simply dies when it doesn't | |
1419 | * match. | |
1420 | * So, don't change the current delivery system, as it | |
1421 | * may be trying to do the wrong thing, like setting an | |
1422 | * ISDB-T frontend as DVB-T. Instead, find the closest | |
1423 | * DVBv3 system that matches the delivery system. | |
04be0f76 MCC |
1424 | */ |
1425 | if (is_dvbv3_delsys(c->delivery_system)) { | |
1426 | dprintk("%s() Using delivery system to %d\n", | |
1427 | __func__, c->delivery_system); | |
1428 | return 0; | |
1429 | } | |
1430 | type = dvbv3_type(c->delivery_system); | |
1431 | switch (type) { | |
1432 | case DVBV3_QPSK: | |
37fa53c6 | 1433 | desired_system = SYS_DVBS; |
04be0f76 MCC |
1434 | break; |
1435 | case DVBV3_QAM: | |
37fa53c6 | 1436 | desired_system = SYS_DVBC_ANNEX_A; |
04be0f76 MCC |
1437 | break; |
1438 | case DVBV3_ATSC: | |
37fa53c6 | 1439 | desired_system = SYS_ATSC; |
04be0f76 MCC |
1440 | break; |
1441 | case DVBV3_OFDM: | |
37fa53c6 | 1442 | desired_system = SYS_DVBT; |
04be0f76 MCC |
1443 | break; |
1444 | default: | |
1445 | dprintk("%s(): This frontend doesn't support DVBv3 calls\n", | |
1446 | __func__); | |
1447 | return -EINVAL; | |
1448 | } | |
3626479e MCC |
1449 | /* |
1450 | * Get a delivery system that is compatible with DVBv3 | |
1451 | * NOTE: in order for this to work with softwares like Kaffeine that | |
1452 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to | |
1453 | * DVB-S, drivers that support both should put the SYS_DVBS entry | |
1454 | * before the SYS_DVBS2, otherwise it won't switch back to DVB-S. | |
1455 | * The real fix is that userspace applications should not use DVBv3 | |
1456 | * and not trust on calling FE_SET_FRONTEND to switch the delivery | |
1457 | * system. | |
1458 | */ | |
1459 | ncaps = 0; | |
1460 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1461 | if (fe->ops.delsys[ncaps] == desired_system) { | |
1462 | delsys = desired_system; | |
1463 | break; | |
1464 | } | |
1465 | ncaps++; | |
1466 | } | |
1467 | if (delsys == SYS_UNDEFINED) { | |
1468 | dprintk("%s() Couldn't find a delivery system that matches %d\n", | |
1469 | __func__, desired_system); | |
1470 | } | |
04be0f76 MCC |
1471 | } else { |
1472 | /* | |
37fa53c6 MCC |
1473 | * This is a DVBv5 call. So, it likely knows the supported |
1474 | * delivery systems. | |
04be0f76 | 1475 | */ |
37fa53c6 MCC |
1476 | |
1477 | /* Check if the desired delivery system is supported */ | |
04be0f76 MCC |
1478 | ncaps = 0; |
1479 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1480 | if (fe->ops.delsys[ncaps] == desired_system) { | |
1481 | c->delivery_system = desired_system; | |
1482 | dprintk("%s() Changing delivery system to %d\n", | |
1483 | __func__, desired_system); | |
1484 | return 0; | |
1485 | } | |
6c4b78cb | 1486 | ncaps++; |
04be0f76 MCC |
1487 | } |
1488 | type = dvbv3_type(desired_system); | |
1489 | ||
1490 | /* | |
1491 | * The delivery system is not supported. See if it can be | |
1492 | * emulated. | |
1493 | * The emulation only works if the desired system is one of the | |
1494 | * DVBv3 delivery systems | |
1495 | */ | |
1496 | if (!is_dvbv3_delsys(desired_system)) { | |
1497 | dprintk("%s() can't use a DVBv3 FE_SET_FRONTEND call on this frontend\n", | |
1498 | __func__); | |
1499 | return -EINVAL; | |
1500 | } | |
1501 | ||
1502 | /* | |
1503 | * Get the last non-DVBv3 delivery system that has the same type | |
1504 | * of the desired system | |
1505 | */ | |
1506 | ncaps = 0; | |
1507 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1508 | if ((dvbv3_type(fe->ops.delsys[ncaps]) == type) && | |
1509 | !is_dvbv3_delsys(fe->ops.delsys[ncaps])) | |
1510 | delsys = fe->ops.delsys[ncaps]; | |
1511 | ncaps++; | |
1512 | } | |
1513 | /* There's nothing compatible with the desired delivery system */ | |
1514 | if (delsys == SYS_UNDEFINED) { | |
1515 | dprintk("%s() Incompatible DVBv3 FE_SET_FRONTEND call for this frontend\n", | |
1516 | __func__); | |
1517 | return -EINVAL; | |
1518 | } | |
04be0f76 MCC |
1519 | } |
1520 | ||
3626479e MCC |
1521 | c->delivery_system = delsys; |
1522 | ||
04be0f76 | 1523 | /* |
37fa53c6 MCC |
1524 | * The DVBv3 or DVBv5 call is requesting a different system. So, |
1525 | * emulation is needed. | |
1526 | * | |
04be0f76 MCC |
1527 | * Emulate newer delivery systems like ISDBT, DVBT and DMBTH |
1528 | * for older DVBv5 applications. The emulation will try to use | |
1529 | * the auto mode for most things, and will assume that the desired | |
1530 | * delivery system is the last one at the ops.delsys[] array | |
1531 | */ | |
1532 | dprintk("%s() Using delivery system %d emulated as if it were a %d\n", | |
1533 | __func__, delsys, desired_system); | |
1534 | ||
1535 | /* | |
a520ca97 MCC |
1536 | * For now, handles ISDB-T calls. More code may be needed here for the |
1537 | * other emulated stuff | |
04be0f76 MCC |
1538 | */ |
1539 | if (type == DVBV3_OFDM) { | |
a520ca97 MCC |
1540 | if (c->delivery_system == SYS_ISDBT) { |
1541 | dprintk("%s() Using defaults for SYS_ISDBT\n", | |
1542 | __func__); | |
1543 | if (!c->bandwidth_hz) | |
1544 | c->bandwidth_hz = 6000000; | |
1545 | ||
1546 | c->isdbt_partial_reception = 0; | |
1547 | c->isdbt_sb_mode = 0; | |
1548 | c->isdbt_sb_subchannel = 0; | |
1549 | c->isdbt_sb_segment_idx = 0; | |
1550 | c->isdbt_sb_segment_count = 0; | |
1551 | c->isdbt_layer_enabled = 0; | |
1552 | for (i = 0; i < 3; i++) { | |
1553 | c->layer[i].fec = FEC_AUTO; | |
1554 | c->layer[i].modulation = QAM_AUTO; | |
1555 | c->layer[i].interleaving = 0; | |
1556 | c->layer[i].segment_count = 0; | |
1557 | } | |
04be0f76 MCC |
1558 | } |
1559 | } | |
9474c5e6 MCC |
1560 | dprintk("change delivery system on cache to %d\n", c->delivery_system); |
1561 | ||
04be0f76 MCC |
1562 | return 0; |
1563 | } | |
1564 | ||
072ce0c5 MCC |
1565 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1566 | struct dtv_property *tvp, | |
072ce0c5 | 1567 | struct file *file) |
6b73eeaf ST |
1568 | { |
1569 | int r = 0; | |
50727719 | 1570 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1571 | |
bfbf2dae | 1572 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1573 | if (fe->ops.set_property) { |
bfbf2dae | 1574 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1575 | if (r < 0) |
1576 | return r; | |
1577 | } | |
bfbf2dae | 1578 | |
6b73eeaf | 1579 | switch(tvp->cmd) { |
e7fee0f3 | 1580 | case DTV_CLEAR: |
5bfaadde MCC |
1581 | /* |
1582 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1583 | * not effect hardware. |
1584 | */ | |
b6e760f3 | 1585 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1586 | break; |
e7fee0f3 | 1587 | case DTV_TUNE: |
6b73eeaf | 1588 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1589 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1590 | * ioctl. | |
6b73eeaf | 1591 | */ |
50727719 | 1592 | c->state = tvp->cmd; |
a1bc84c0 | 1593 | dprintk("%s() Finalised property cache\n", __func__); |
d5748f10 | 1594 | |
5bfaadde | 1595 | r = dtv_set_frontend(fe); |
6b73eeaf | 1596 | break; |
363429a0 | 1597 | case DTV_FREQUENCY: |
50727719 | 1598 | c->frequency = tvp->u.data; |
6b73eeaf | 1599 | break; |
363429a0 | 1600 | case DTV_MODULATION: |
50727719 | 1601 | c->modulation = tvp->u.data; |
6b73eeaf | 1602 | break; |
75b7f943 | 1603 | case DTV_BANDWIDTH_HZ: |
50727719 | 1604 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1605 | break; |
363429a0 | 1606 | case DTV_INVERSION: |
50727719 | 1607 | c->inversion = tvp->u.data; |
6b73eeaf | 1608 | break; |
363429a0 | 1609 | case DTV_SYMBOL_RATE: |
50727719 | 1610 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1611 | break; |
363429a0 | 1612 | case DTV_INNER_FEC: |
50727719 | 1613 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1614 | break; |
363429a0 | 1615 | case DTV_PILOT: |
50727719 | 1616 | c->pilot = tvp->u.data; |
6b73eeaf | 1617 | break; |
363429a0 | 1618 | case DTV_ROLLOFF: |
50727719 | 1619 | c->rolloff = tvp->u.data; |
6b73eeaf | 1620 | break; |
363429a0 | 1621 | case DTV_DELIVERY_SYSTEM: |
04be0f76 | 1622 | r = set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1623 | break; |
363429a0 | 1624 | case DTV_VOLTAGE: |
50727719 | 1625 | c->voltage = tvp->u.data; |
16ef8def | 1626 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1627 | (void *)c->voltage); |
13c97bf5 | 1628 | break; |
363429a0 | 1629 | case DTV_TONE: |
50727719 | 1630 | c->sectone = tvp->u.data; |
16ef8def | 1631 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1632 | (void *)c->sectone); |
13c97bf5 | 1633 | break; |
a4de91be | 1634 | case DTV_CODE_RATE_HP: |
50727719 | 1635 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1636 | break; |
1637 | case DTV_CODE_RATE_LP: | |
50727719 | 1638 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1639 | break; |
b87625f0 | 1640 | case DTV_GUARD_INTERVAL: |
50727719 | 1641 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1642 | break; |
1643 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1644 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1645 | break; |
ef526f42 | 1646 | case DTV_HIERARCHY: |
50727719 | 1647 | c->hierarchy = tvp->u.data; |
ef526f42 | 1648 | break; |
b6e760f3 PB |
1649 | |
1650 | /* ISDB-T Support here */ | |
1651 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1652 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1653 | break; |
1654 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1655 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1656 | break; |
1657 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1658 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1659 | break; |
1660 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1661 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1662 | break; |
1663 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1664 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1665 | break; |
e7b7949a | 1666 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1667 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1668 | break; |
b6e760f3 | 1669 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1670 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1671 | break; |
1672 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1673 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1674 | break; |
1675 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1676 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1677 | break; |
1678 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1679 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1680 | break; |
1681 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1682 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1683 | break; |
1684 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1685 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1686 | break; |
1687 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1688 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1689 | break; |
1690 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1691 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1692 | break; |
1693 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1694 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1695 | break; |
1696 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1697 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1698 | break; |
1699 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1700 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1701 | break; |
1702 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1703 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1704 | break; |
98293ef3 | 1705 | case DTV_ISDBS_TS_ID: |
50727719 | 1706 | c->isdbs_ts_id = tvp->u.data; |
94d56ffa AO |
1707 | break; |
1708 | case DTV_DVBT2_PLP_ID: | |
50727719 | 1709 | c->dvbt2_plp_id = tvp->u.data; |
98293ef3 | 1710 | break; |
363429a0 | 1711 | default: |
aff8ab5c | 1712 | return -EINVAL; |
6b73eeaf ST |
1713 | } |
1714 | ||
13c97bf5 | 1715 | return r; |
6b73eeaf ST |
1716 | } |
1717 | ||
16ef8def | 1718 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1719 | unsigned int cmd, void *parg) |
1720 | { | |
1721 | struct dvb_device *dvbdev = file->private_data; | |
1722 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1723 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1724 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
1725 | int err = -EOPNOTSUPP; |
1726 | ||
fb8253ba | 1727 | dprintk("%s (%d)\n", __func__, _IOC_NR(cmd)); |
1da177e4 | 1728 | |
e36309f5 | 1729 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
1730 | return -ENODEV; |
1731 | ||
1732 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1733 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
1734 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) | |
1735 | return -EPERM; | |
1736 | ||
1737 | if (down_interruptible (&fepriv->sem)) | |
1738 | return -ERESTARTSYS; | |
1739 | ||
13c97bf5 | 1740 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1741 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1742 | else { |
50727719 | 1743 | c->state = DTV_UNDEFINED; |
16ef8def | 1744 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1745 | } |
13c97bf5 ST |
1746 | |
1747 | up(&fepriv->sem); | |
1748 | return err; | |
1749 | } | |
1750 | ||
16ef8def | 1751 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1752 | unsigned int cmd, void *parg) |
1753 | { | |
1754 | struct dvb_device *dvbdev = file->private_data; | |
1755 | struct dvb_frontend *fe = dvbdev->priv; | |
51dcb19a | 1756 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
50727719 | 1757 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1758 | int err = 0; |
e7fee0f3 ST |
1759 | |
1760 | struct dtv_properties *tvps = NULL; | |
1761 | struct dtv_property *tvp = NULL; | |
1762 | int i; | |
13c97bf5 ST |
1763 | |
1764 | dprintk("%s\n", __func__); | |
1765 | ||
6b73eeaf | 1766 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1767 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1768 | |
a1bc84c0 ST |
1769 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1770 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1771 | |
1772 | /* Put an arbitrary limit on the number of messages that can | |
1773 | * be sent at once */ | |
6068f506 | 1774 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1775 | return -EINVAL; |
1776 | ||
6e3924aa | 1777 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1778 | if (!tvp) { |
1779 | err = -ENOMEM; | |
1780 | goto out; | |
6b73eeaf ST |
1781 | } |
1782 | ||
e7fee0f3 ST |
1783 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1784 | err = -EFAULT; | |
1785 | goto out; | |
1786 | } | |
1787 | ||
d48cb402 | 1788 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1789 | err = dtv_property_process_set(fe, tvp + i, file); |
1790 | if (err < 0) | |
1791 | goto out; | |
1792 | (tvp + i)->result = err; | |
d48cb402 | 1793 | } |
e7fee0f3 | 1794 | |
50727719 | 1795 | if (c->state == DTV_TUNE) |
a1bc84c0 | 1796 | dprintk("%s() Property cache is full, tuning\n", __func__); |
bfbf2dae | 1797 | |
363429a0 ST |
1798 | } else |
1799 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1800 | tvps = (struct dtv_properties __user *)parg; |
1801 | ||
a1bc84c0 ST |
1802 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1803 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1804 | |
1805 | /* Put an arbitrary limit on the number of messages that can | |
1806 | * be sent at once */ | |
6068f506 | 1807 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1808 | return -EINVAL; |
1809 | ||
6e3924aa | 1810 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1811 | if (!tvp) { |
1812 | err = -ENOMEM; | |
1813 | goto out; | |
1814 | } | |
1815 | ||
1816 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1817 | err = -EFAULT; | |
1818 | goto out; | |
1819 | } | |
1820 | ||
a689e365 MCC |
1821 | /* |
1822 | * Fills the cache out struct with the cache contents, plus | |
51dcb19a MCC |
1823 | * the data retrieved from get_frontend, if the frontend |
1824 | * is not idle. Otherwise, returns the cached content | |
a689e365 | 1825 | */ |
51dcb19a MCC |
1826 | if (fepriv->state != FESTATE_IDLE) { |
1827 | err = dtv_get_frontend(fe, NULL); | |
1828 | if (err < 0) | |
1829 | goto out; | |
1830 | } | |
d48cb402 | 1831 | for (i = 0; i < tvps->num; i++) { |
7c61d80a | 1832 | err = dtv_property_process_get(fe, c, tvp + i, file); |
aff8ab5c AO |
1833 | if (err < 0) |
1834 | goto out; | |
1835 | (tvp + i)->result = err; | |
d48cb402 | 1836 | } |
363429a0 ST |
1837 | |
1838 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
1839 | err = -EFAULT; | |
1840 | goto out; | |
1841 | } | |
1842 | ||
363429a0 ST |
1843 | } else |
1844 | err = -EOPNOTSUPP; | |
1845 | ||
e7fee0f3 ST |
1846 | out: |
1847 | kfree(tvp); | |
13c97bf5 ST |
1848 | return err; |
1849 | } | |
1850 | ||
5bfaadde | 1851 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 1852 | { |
9682cea2 MCC |
1853 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1854 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1855 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 1856 | u32 rolloff = 0; |
9682cea2 | 1857 | |
5bfaadde MCC |
1858 | if (dvb_frontend_check_parameters(fe) < 0) |
1859 | return -EINVAL; | |
9682cea2 | 1860 | |
556a0442 CR |
1861 | /* |
1862 | * Initialize output parameters to match the values given by | |
1863 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
1864 | * with status = 0, which copies output parameters to userspace. | |
1865 | */ | |
1866 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); | |
1867 | ||
5bfaadde MCC |
1868 | /* |
1869 | * Be sure that the bandwidth will be filled for all | |
1870 | * non-satellite systems, as tuners need to know what | |
1871 | * low pass/Nyquist half filter should be applied, in | |
1872 | * order to avoid inter-channel noise. | |
1873 | * | |
1874 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
1875 | * ATSC and DVB-C don't set, so, the core should fill it. | |
1876 | * | |
1877 | * On DVB-C Annex A and C, the bandwidth is a function of | |
1878 | * the roll-off and symbol rate. Annex B defines different | |
1879 | * roll-off factors depending on the modulation. Fortunately, | |
1880 | * Annex B is only used with 6MHz, so there's no need to | |
1881 | * calculate it. | |
1882 | * | |
1883 | * While not officially supported, a side effect of handling it at | |
1884 | * the cache level is that a program could retrieve the bandwidth | |
1885 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
1886 | */ | |
1887 | switch (c->delivery_system) { | |
1888 | case SYS_ATSC: | |
1889 | case SYS_DVBC_ANNEX_B: | |
1890 | c->bandwidth_hz = 6000000; | |
1891 | break; | |
1892 | case SYS_DVBC_ANNEX_A: | |
1893 | rolloff = 115; | |
1894 | break; | |
1895 | case SYS_DVBC_ANNEX_C: | |
1896 | rolloff = 113; | |
1897 | break; | |
1898 | default: | |
1899 | break; | |
1900 | } | |
1901 | if (rolloff) | |
1902 | c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; | |
9682cea2 MCC |
1903 | |
1904 | /* force auto frequency inversion if requested */ | |
5bfaadde | 1905 | if (dvb_force_auto_inversion) |
9682cea2 | 1906 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
1907 | |
1908 | /* | |
1909 | * without hierarchical coding code_rate_LP is irrelevant, | |
1910 | * so we tolerate the otherwise invalid FEC_NONE setting | |
1911 | */ | |
1912 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
1913 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
1914 | |
1915 | /* get frontend-specific tuning settings */ | |
5bfaadde | 1916 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
1917 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
1918 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
1919 | fepriv->max_drift = fetunesettings.max_drift; | |
1920 | fepriv->step_size = fetunesettings.step_size; | |
1921 | } else { | |
1922 | /* default values */ | |
5bfaadde | 1923 | switch (c->delivery_system) { |
910a5f2e MCC |
1924 | case SYS_DVBS: |
1925 | case SYS_DVBS2: | |
1926 | case SYS_ISDBS: | |
1927 | case SYS_TURBO: | |
5bfaadde MCC |
1928 | case SYS_DVBC_ANNEX_A: |
1929 | case SYS_DVBC_ANNEX_C: | |
1930 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
1931 | fepriv->step_size = c->symbol_rate / 16000; |
1932 | fepriv->max_drift = c->symbol_rate / 2000; | |
1933 | break; | |
5bfaadde MCC |
1934 | case SYS_DVBT: |
1935 | case SYS_DVBT2: | |
1936 | case SYS_ISDBT: | |
1937 | case SYS_DMBTH: | |
1938 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
1939 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
1940 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
1941 | break; | |
5bfaadde MCC |
1942 | default: |
1943 | /* | |
1944 | * FIXME: This sounds wrong! if freqency_stepsize is | |
1945 | * defined by the frontend, why not use it??? | |
1946 | */ | |
1947 | fepriv->min_delay = HZ / 20; | |
1948 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
1949 | fepriv->max_drift = 0; |
1950 | break; | |
1951 | } | |
1952 | } | |
1953 | if (dvb_override_tune_delay > 0) | |
1954 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
1955 | ||
1956 | fepriv->state = FESTATE_RETUNE; | |
1957 | ||
1958 | /* Request the search algorithm to search */ | |
1959 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
1960 | ||
1961 | dvb_frontend_clear_events(fe); | |
1962 | dvb_frontend_add_event(fe, 0); | |
1963 | dvb_frontend_wakeup(fe); | |
1964 | fepriv->status = 0; | |
1965 | ||
1966 | return 0; | |
1967 | } | |
1968 | ||
1969 | ||
16ef8def | 1970 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
1971 | unsigned int cmd, void *parg) |
1972 | { | |
1973 | struct dvb_device *dvbdev = file->private_data; | |
1974 | struct dvb_frontend *fe = dvbdev->priv; | |
1975 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 1976 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
9133aee0 MK |
1977 | int cb_err, err = -EOPNOTSUPP; |
1978 | ||
1979 | if (fe->dvb->fe_ioctl_override) { | |
1980 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1981 | DVB_FE_IOCTL_PRE); | |
1982 | if (cb_err < 0) | |
1983 | return cb_err; | |
1984 | if (cb_err > 0) | |
1985 | return 0; | |
1986 | /* fe_ioctl_override returning 0 allows | |
1987 | * dvb-core to continue handling the ioctl */ | |
1988 | } | |
13c97bf5 | 1989 | |
1da177e4 LT |
1990 | switch (cmd) { |
1991 | case FE_GET_INFO: { | |
0c53c70f | 1992 | struct dvb_frontend_info* info = parg; |
9474c5e6 | 1993 | |
dea74869 | 1994 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 1995 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 1996 | |
5bfaadde MCC |
1997 | /* |
1998 | * Associate the 4 delivery systems supported by DVBv3 | |
1999 | * API with their DVBv5 counterpart. For the other standards, | |
2000 | * use the closest type, assuming that it would hopefully | |
2001 | * work with a DVBv3 application. | |
2002 | * It should be noticed that, on multi-frontend devices with | |
2003 | * different types (terrestrial and cable, for example), | |
2004 | * a pure DVBv3 application won't be able to use all delivery | |
2005 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
2006 | * system should be enough for making it work. | |
2007 | */ | |
2008 | switch (dvbv3_type(c->delivery_system)) { | |
2009 | case DVBV3_QPSK: | |
9474c5e6 | 2010 | info->type = FE_QPSK; |
5bfaadde MCC |
2011 | break; |
2012 | case DVBV3_ATSC: | |
9474c5e6 | 2013 | info->type = FE_ATSC; |
5bfaadde MCC |
2014 | break; |
2015 | case DVBV3_QAM: | |
9474c5e6 | 2016 | info->type = FE_QAM; |
5bfaadde MCC |
2017 | break; |
2018 | case DVBV3_OFDM: | |
9474c5e6 | 2019 | info->type = FE_OFDM; |
5bfaadde MCC |
2020 | break; |
2021 | default: | |
2022 | printk(KERN_ERR | |
2023 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
2024 | __func__, c->delivery_system); | |
2025 | fe->ops.info.type = FE_OFDM; | |
2026 | } | |
9474c5e6 MCC |
2027 | dprintk("current delivery system on cache: %d, V3 type: %d\n", |
2028 | c->delivery_system, fe->ops.info.type); | |
5bfaadde | 2029 | |
1da177e4 LT |
2030 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't |
2031 | * do it, it is done for it. */ | |
2032 | info->caps |= FE_CAN_INVERSION_AUTO; | |
2033 | err = 0; | |
2034 | break; | |
2035 | } | |
2036 | ||
6757ccc5 PB |
2037 | case FE_READ_STATUS: { |
2038 | fe_status_t* status = parg; | |
2039 | ||
25985edc | 2040 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2041 | * that user get signal state from previous tuning */ |
01886255 JG |
2042 | if (fepriv->state == FESTATE_RETUNE || |
2043 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2044 | err=0; |
2045 | *status = 0; | |
2046 | break; | |
2047 | } | |
2048 | ||
dea74869 PB |
2049 | if (fe->ops.read_status) |
2050 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2051 | break; |
6757ccc5 | 2052 | } |
1da177e4 | 2053 | case FE_READ_BER: |
dea74869 PB |
2054 | if (fe->ops.read_ber) |
2055 | err = fe->ops.read_ber(fe, (__u32*) parg); | |
1da177e4 LT |
2056 | break; |
2057 | ||
2058 | case FE_READ_SIGNAL_STRENGTH: | |
dea74869 PB |
2059 | if (fe->ops.read_signal_strength) |
2060 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); | |
1da177e4 LT |
2061 | break; |
2062 | ||
2063 | case FE_READ_SNR: | |
dea74869 PB |
2064 | if (fe->ops.read_snr) |
2065 | err = fe->ops.read_snr(fe, (__u16*) parg); | |
1da177e4 LT |
2066 | break; |
2067 | ||
2068 | case FE_READ_UNCORRECTED_BLOCKS: | |
dea74869 PB |
2069 | if (fe->ops.read_ucblocks) |
2070 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); | |
1da177e4 LT |
2071 | break; |
2072 | ||
2073 | ||
2074 | case FE_DISEQC_RESET_OVERLOAD: | |
dea74869 PB |
2075 | if (fe->ops.diseqc_reset_overload) { |
2076 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2077 | fepriv->state = FESTATE_DISEQC; |
2078 | fepriv->status = 0; | |
2079 | } | |
2080 | break; | |
2081 | ||
2082 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
2083 | if (fe->ops.diseqc_send_master_cmd) { |
2084 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
2085 | fepriv->state = FESTATE_DISEQC; |
2086 | fepriv->status = 0; | |
2087 | } | |
2088 | break; | |
2089 | ||
2090 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
2091 | if (fe->ops.diseqc_send_burst) { |
2092 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
2093 | fepriv->state = FESTATE_DISEQC; |
2094 | fepriv->status = 0; | |
2095 | } | |
2096 | break; | |
2097 | ||
2098 | case FE_SET_TONE: | |
dea74869 PB |
2099 | if (fe->ops.set_tone) { |
2100 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 2101 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
2102 | fepriv->state = FESTATE_DISEQC; |
2103 | fepriv->status = 0; | |
2104 | } | |
2105 | break; | |
2106 | ||
2107 | case FE_SET_VOLTAGE: | |
dea74869 PB |
2108 | if (fe->ops.set_voltage) { |
2109 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 2110 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
2111 | fepriv->state = FESTATE_DISEQC; |
2112 | fepriv->status = 0; | |
2113 | } | |
2114 | break; | |
2115 | ||
2116 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
2117 | if (fe->ops.dishnetwork_send_legacy_command) { |
2118 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
2119 | fepriv->state = FESTATE_DISEQC; |
2120 | fepriv->status = 0; | |
dea74869 | 2121 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2122 | /* |
2123 | * NOTE: This is a fallback condition. Some frontends | |
2124 | * (stv0299 for instance) take longer than 8msec to | |
2125 | * respond to a set_voltage command. Those switches | |
2126 | * need custom routines to switch properly. For all | |
2030c032 | 2127 | * other frontends, the following should work ok. |
83b75b04 N |
2128 | * Dish network legacy switches (as used by Dish500) |
2129 | * are controlled by sending 9-bit command words | |
2130 | * spaced 8msec apart. | |
25985edc | 2131 | * the actual command word is switch/port dependent |
83b75b04 N |
2132 | * so it is up to the userspace application to send |
2133 | * the right command. | |
2134 | * The command must always start with a '0' after | |
2135 | * initialization, so parg is 8 bits and does not | |
2136 | * include the initialization or start bit | |
2137 | */ | |
c6eb8eaf | 2138 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
2139 | struct timeval nexttime; |
2140 | struct timeval tv[10]; | |
2141 | int i; | |
2142 | u8 last = 1; | |
2143 | if (dvb_frontend_debug) | |
c6eb8eaf | 2144 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
2145 | do_gettimeofday(&nexttime); |
2146 | if (dvb_frontend_debug) | |
2147 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); | |
2148 | /* before sending a command, initialize by sending | |
2149 | * a 32ms 18V to the switch | |
2150 | */ | |
dea74869 | 2151 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2152 | dvb_frontend_sleep_until(&nexttime, 32000); |
2153 | ||
2154 | for (i = 0; i < 9; i++) { | |
2155 | if (dvb_frontend_debug) | |
2156 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 2157 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2158 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2159 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2160 | last = (last) ? 0 : 1; |
2161 | } | |
c6eb8eaf | 2162 | swcmd = swcmd >> 1; |
83b75b04 N |
2163 | if (i != 8) |
2164 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2165 | } | |
2166 | if (dvb_frontend_debug) { | |
2167 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 2168 | __func__, fe->dvb->num); |
83b75b04 N |
2169 | for (i = 1; i < 10; i++) |
2170 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
2171 | } | |
2172 | err = 0; | |
2173 | fepriv->state = FESTATE_DISEQC; | |
2174 | fepriv->status = 0; | |
1da177e4 LT |
2175 | } |
2176 | break; | |
2177 | ||
2178 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2179 | if (fe->ops.diseqc_recv_slave_reply) |
2180 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2181 | break; |
2182 | ||
2183 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2184 | if (fe->ops.enable_high_lnb_voltage) |
2185 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2186 | break; |
2187 | ||
9682cea2 | 2188 | case FE_SET_FRONTEND: |
04be0f76 MCC |
2189 | err = set_delivery_system(fe, SYS_UNDEFINED); |
2190 | if (err) | |
2191 | break; | |
2192 | ||
e399ce77 | 2193 | err = dtv_property_cache_sync(fe, c, parg); |
5bfaadde MCC |
2194 | if (err) |
2195 | break; | |
2196 | err = dtv_set_frontend(fe); | |
1da177e4 | 2197 | break; |
1da177e4 LT |
2198 | case FE_GET_EVENT: |
2199 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2200 | break; | |
2201 | ||
2202 | case FE_GET_FRONTEND: | |
e399ce77 | 2203 | err = dtv_get_frontend(fe, parg); |
1da177e4 | 2204 | break; |
36cb557a AQ |
2205 | |
2206 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 2207 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2208 | err = 0; |
36cb557a | 2209 | break; |
1da177e4 LT |
2210 | }; |
2211 | ||
9133aee0 MK |
2212 | if (fe->dvb->fe_ioctl_override) { |
2213 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
2214 | DVB_FE_IOCTL_POST); | |
2215 | if (cb_err < 0) | |
2216 | return cb_err; | |
2217 | } | |
2218 | ||
1da177e4 LT |
2219 | return err; |
2220 | } | |
2221 | ||
6b73eeaf | 2222 | |
1da177e4 LT |
2223 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2224 | { | |
2225 | struct dvb_device *dvbdev = file->private_data; | |
2226 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2227 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2228 | |
46b4f7c1 | 2229 | dprintk ("%s\n", __func__); |
1da177e4 LT |
2230 | |
2231 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2232 | ||
2233 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2234 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2235 | ||
2236 | return 0; | |
2237 | } | |
2238 | ||
2239 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2240 | { | |
2241 | struct dvb_device *dvbdev = file->private_data; | |
2242 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2243 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2244 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2245 | int ret; |
2246 | ||
46b4f7c1 | 2247 | dprintk ("%s\n", __func__); |
e36309f5 MC |
2248 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
2249 | return -ENODEV; | |
1da177e4 | 2250 | |
59b1842d DB |
2251 | if (adapter->mfe_shared) { |
2252 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2253 | |
2254 | if (adapter->mfe_dvbdev == NULL) | |
2255 | adapter->mfe_dvbdev = dvbdev; | |
2256 | ||
2257 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2258 | struct dvb_device | |
2259 | *mfedev = adapter->mfe_dvbdev; | |
2260 | struct dvb_frontend | |
2261 | *mfe = mfedev->priv; | |
2262 | struct dvb_frontend_private | |
2263 | *mfepriv = mfe->frontend_priv; | |
2264 | int mferetry = (dvb_mfe_wait_time << 1); | |
2265 | ||
2266 | mutex_unlock (&adapter->mfe_lock); | |
2267 | while (mferetry-- && (mfedev->users != -1 || | |
2268 | mfepriv->thread != NULL)) { | |
2269 | if(msleep_interruptible(500)) { | |
2270 | if(signal_pending(current)) | |
2271 | return -EINTR; | |
59b1842d | 2272 | } |
6594690b DB |
2273 | } |
2274 | ||
2275 | mutex_lock (&adapter->mfe_lock); | |
2276 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2277 | mfedev = adapter->mfe_dvbdev; |
2278 | mfe = mfedev->priv; | |
2279 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2280 | if (mfedev->users != -1 || |
2281 | mfepriv->thread != NULL) { | |
2282 | mutex_unlock (&adapter->mfe_lock); | |
2283 | return -EBUSY; | |
59b1842d | 2284 | } |
6594690b | 2285 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2286 | } |
59b1842d DB |
2287 | } |
2288 | } | |
2289 | ||
48136e1e OE |
2290 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2291 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2292 | goto err0; |
2d196931 DH |
2293 | |
2294 | /* If we took control of the bus, we need to force | |
2295 | reinitialization. This is because many ts_bus_ctrl() | |
2296 | functions strobe the RESET pin on the demod, and if the | |
2297 | frontend thread already exists then the dvb_init() routine | |
2298 | won't get called (which is what usually does initial | |
2299 | register configuration). */ | |
2300 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2301 | } |
2302 | ||
48136e1e OE |
2303 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2304 | goto err1; | |
04c56d0e | 2305 | |
48136e1e | 2306 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2307 | /* normal tune mode when opened R/W */ |
2308 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2309 | fepriv->tone = -1; | |
2310 | fepriv->voltage = -1; | |
2311 | ||
1da177e4 LT |
2312 | ret = dvb_frontend_start (fe); |
2313 | if (ret) | |
48136e1e | 2314 | goto err2; |
1da177e4 LT |
2315 | |
2316 | /* empty event queue */ | |
2317 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2318 | } | |
2319 | ||
59b1842d DB |
2320 | if (adapter->mfe_shared) |
2321 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2322 | return ret; |
48136e1e OE |
2323 | |
2324 | err2: | |
2325 | dvb_generic_release(inode, file); | |
2326 | err1: | |
2327 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2328 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2329 | err0: |
2330 | if (adapter->mfe_shared) | |
2331 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2332 | return ret; |
1da177e4 LT |
2333 | } |
2334 | ||
2335 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2336 | { | |
2337 | struct dvb_device *dvbdev = file->private_data; | |
2338 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2339 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2340 | int ret; |
1da177e4 | 2341 | |
46b4f7c1 | 2342 | dprintk ("%s\n", __func__); |
1da177e4 | 2343 | |
b9d5efcc | 2344 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2345 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2346 | mb(); |
2347 | } | |
1da177e4 | 2348 | |
ca5be9cd MR |
2349 | ret = dvb_generic_release (inode, file); |
2350 | ||
48136e1e | 2351 | if (dvbdev->users == -1) { |
b9d5efcc | 2352 | wake_up(&fepriv->wait_queue); |
e36309f5 | 2353 | if (fepriv->exit != DVB_FE_NO_EXIT) { |
48136e1e OE |
2354 | fops_put(file->f_op); |
2355 | file->f_op = NULL; | |
2356 | wake_up(&dvbdev->wait_queue); | |
2357 | } | |
2358 | if (fe->ops.ts_bus_ctrl) | |
2359 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2360 | } |
48136e1e | 2361 | |
ca5be9cd | 2362 | return ret; |
1da177e4 LT |
2363 | } |
2364 | ||
784e29d2 | 2365 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2366 | .owner = THIS_MODULE, |
16ef8def | 2367 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2368 | .poll = dvb_frontend_poll, |
2369 | .open = dvb_frontend_open, | |
6038f373 AB |
2370 | .release = dvb_frontend_release, |
2371 | .llseek = noop_llseek, | |
1da177e4 LT |
2372 | }; |
2373 | ||
2374 | int dvb_register_frontend(struct dvb_adapter* dvb, | |
2375 | struct dvb_frontend* fe) | |
2376 | { | |
2377 | struct dvb_frontend_private *fepriv; | |
2378 | static const struct dvb_device dvbdev_template = { | |
2379 | .users = ~0, | |
2380 | .writers = 1, | |
2381 | .readers = (~0)-1, | |
2382 | .fops = &dvb_frontend_fops, | |
2383 | .kernel_ioctl = dvb_frontend_ioctl | |
2384 | }; | |
2385 | ||
46b4f7c1 | 2386 | dprintk ("%s\n", __func__); |
1da177e4 | 2387 | |
3593cab5 | 2388 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2389 | return -ERESTARTSYS; |
2390 | ||
7408187d | 2391 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2392 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2393 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2394 | return -ENOMEM; |
2395 | } | |
0c53c70f | 2396 | fepriv = fe->frontend_priv; |
1da177e4 | 2397 | |
a0a4714c | 2398 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2399 | init_waitqueue_head (&fepriv->wait_queue); |
2400 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2401 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2402 | fe->dvb = dvb; |
2403 | fepriv->inversion = INVERSION_OFF; | |
2404 | ||
363c35fc | 2405 | printk ("DVB: registering adapter %i frontend %i (%s)...\n", |
1da177e4 | 2406 | fe->dvb->num, |
363c35fc | 2407 | fe->id, |
dea74869 | 2408 | fe->ops.info.name); |
1da177e4 LT |
2409 | |
2410 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2411 | fe, DVB_DEVICE_FRONTEND); | |
2412 | ||
5bfaadde MCC |
2413 | /* |
2414 | * Initialize the cache to the proper values according with the | |
2415 | * first supported delivery system (ops->delsys[0]) | |
2416 | */ | |
240ab508 MCC |
2417 | |
2418 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; | |
5bfaadde MCC |
2419 | dvb_frontend_clear_cache(fe); |
2420 | ||
3593cab5 | 2421 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2422 | return 0; |
2423 | } | |
2424 | EXPORT_SYMBOL(dvb_register_frontend); | |
2425 | ||
2426 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2427 | { | |
0c53c70f | 2428 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
46b4f7c1 | 2429 | dprintk ("%s\n", __func__); |
1da177e4 | 2430 | |
57861b43 | 2431 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2432 | dvb_frontend_stop (fe); |
57861b43 MR |
2433 | mutex_unlock(&frontend_mutex); |
2434 | ||
2435 | if (fepriv->dvbdev->users < -1) | |
2436 | wait_event(fepriv->dvbdev->wait_queue, | |
2437 | fepriv->dvbdev->users==-1); | |
2438 | ||
3593cab5 | 2439 | mutex_lock(&frontend_mutex); |
1da177e4 | 2440 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2441 | |
1da177e4 LT |
2442 | /* fe is invalid now */ |
2443 | kfree(fepriv); | |
3593cab5 | 2444 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2445 | return 0; |
2446 | } | |
2447 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2448 | |
149ef72d | 2449 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2450 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2451 | { | |
2452 | void *ptr; | |
2453 | ||
2454 | if (fe->ops.release_sec) { | |
2455 | fe->ops.release_sec(fe); | |
2456 | symbol_put_addr(fe->ops.release_sec); | |
2457 | } | |
2458 | if (fe->ops.tuner_ops.release) { | |
2459 | fe->ops.tuner_ops.release(fe); | |
2460 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2461 | } | |
2426a27e MK |
2462 | if (fe->ops.analog_ops.release) { |
2463 | fe->ops.analog_ops.release(fe); | |
2464 | symbol_put_addr(fe->ops.analog_ops.release); | |
2465 | } | |
f52a838b AQ |
2466 | ptr = (void*)fe->ops.release; |
2467 | if (ptr) { | |
2468 | fe->ops.release(fe); | |
2469 | symbol_put_addr(ptr); | |
2470 | } | |
2471 | } | |
2472 | #else | |
2473 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2474 | { | |
2475 | if (fe->ops.release_sec) | |
2476 | fe->ops.release_sec(fe); | |
2477 | if (fe->ops.tuner_ops.release) | |
2478 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2479 | if (fe->ops.analog_ops.release) |
2480 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2481 | if (fe->ops.release) |
2482 | fe->ops.release(fe); | |
2483 | } | |
2484 | #endif | |
2485 | EXPORT_SYMBOL(dvb_frontend_detach); |