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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; |
61cb27af | 111 | struct dvb_frontend_parameters parameters_in; |
a5959dbe | 112 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
113 | struct dvb_fe_events events; |
114 | struct semaphore sem; | |
115 | struct list_head list_head; | |
116 | wait_queue_head_t wait_queue; | |
8eec1429 | 117 | struct task_struct *thread; |
1da177e4 | 118 | unsigned long release_jiffies; |
36cb557a AQ |
119 | unsigned int exit; |
120 | unsigned int wakeup; | |
1da177e4 | 121 | fe_status_t status; |
400b7083 | 122 | unsigned long tune_mode_flags; |
36cb557a | 123 | unsigned int delay; |
86f40cc3 | 124 | unsigned int reinitialise; |
64454016 AQ |
125 | int tone; |
126 | int voltage; | |
36cb557a AQ |
127 | |
128 | /* swzigzag values */ | |
129 | unsigned int state; | |
130 | unsigned int bending; | |
131 | int lnb_drift; | |
132 | unsigned int inversion; | |
133 | unsigned int auto_step; | |
134 | unsigned int auto_sub_step; | |
135 | unsigned int started_auto_step; | |
136 | unsigned int min_delay; | |
137 | unsigned int max_drift; | |
138 | unsigned int step_size; | |
139 | int quality; | |
140 | unsigned int check_wrapped; | |
c59e7870 | 141 | enum dvbfe_search algo_status; |
1da177e4 LT |
142 | }; |
143 | ||
86f40cc3 | 144 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 145 | static int dtv_get_frontend(struct dvb_frontend *fe, |
a689e365 MCC |
146 | struct dvb_frontend_parameters *p_out); |
147 | ||
148 | static bool has_get_frontend(struct dvb_frontend *fe) | |
149 | { | |
b1e9a650 | 150 | return fe->ops.get_frontend; |
a689e365 | 151 | } |
1da177e4 | 152 | |
5bfaadde MCC |
153 | /* |
154 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
155 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
156 | * otherwise, a DVBv3 call will fail. | |
157 | */ | |
158 | enum dvbv3_emulation_type { | |
159 | DVBV3_UNKNOWN, | |
160 | DVBV3_QPSK, | |
161 | DVBV3_QAM, | |
162 | DVBV3_OFDM, | |
163 | DVBV3_ATSC, | |
164 | }; | |
165 | ||
166 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
167 | { | |
168 | switch (delivery_system) { | |
169 | case SYS_DVBC_ANNEX_A: | |
170 | case SYS_DVBC_ANNEX_C: | |
171 | return DVBV3_QAM; | |
172 | case SYS_DVBS: | |
173 | case SYS_DVBS2: | |
174 | case SYS_TURBO: | |
175 | case SYS_ISDBS: | |
176 | case SYS_DSS: | |
177 | return DVBV3_QPSK; | |
178 | case SYS_DVBT: | |
179 | case SYS_DVBT2: | |
180 | case SYS_ISDBT: | |
181 | case SYS_DMBTH: | |
182 | return DVBV3_OFDM; | |
183 | case SYS_ATSC: | |
184 | case SYS_DVBC_ANNEX_B: | |
185 | return DVBV3_ATSC; | |
186 | case SYS_UNDEFINED: | |
187 | case SYS_ISDBC: | |
188 | case SYS_DVBH: | |
189 | case SYS_DAB: | |
190 | case SYS_ATSCMH: | |
191 | default: | |
192 | /* | |
193 | * Doesn't know how to emulate those types and/or | |
194 | * there's no frontend driver from this type yet | |
195 | * with some emulation code, so, we're not sure yet how | |
196 | * to handle them, or they're not compatible with a DVBv3 call. | |
197 | */ | |
198 | return DVBV3_UNKNOWN; | |
199 | } | |
200 | } | |
201 | ||
1da177e4 LT |
202 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
203 | { | |
0c53c70f | 204 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
205 | struct dvb_fe_events *events = &fepriv->events; |
206 | struct dvb_frontend_event *e; | |
207 | int wp; | |
208 | ||
46b4f7c1 | 209 | dprintk ("%s\n", __func__); |
1da177e4 | 210 | |
a689e365 | 211 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
7c61d80a | 212 | dtv_get_frontend(fe, &fepriv->parameters_out); |
1da177e4 | 213 | |
77b1e2fb | 214 | mutex_lock(&events->mtx); |
1da177e4 | 215 | |
77b1e2fb | 216 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
217 | if (wp == events->eventr) { |
218 | events->overflow = 1; | |
219 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
220 | } | |
221 | ||
222 | e = &events->events[events->eventw]; | |
77b1e2fb | 223 | e->status = status; |
a5959dbe | 224 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
225 | |
226 | events->eventw = wp; | |
227 | ||
03b76123 | 228 | mutex_unlock(&events->mtx); |
1da177e4 | 229 | |
1da177e4 LT |
230 | wake_up_interruptible (&events->wait_queue); |
231 | } | |
232 | ||
233 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
234 | struct dvb_frontend_event *event, int flags) | |
235 | { | |
0c53c70f | 236 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
237 | struct dvb_fe_events *events = &fepriv->events; |
238 | ||
46b4f7c1 | 239 | dprintk ("%s\n", __func__); |
1da177e4 LT |
240 | |
241 | if (events->overflow) { | |
242 | events->overflow = 0; | |
243 | return -EOVERFLOW; | |
244 | } | |
245 | ||
246 | if (events->eventw == events->eventr) { | |
247 | int ret; | |
248 | ||
249 | if (flags & O_NONBLOCK) | |
250 | return -EWOULDBLOCK; | |
251 | ||
252 | up(&fepriv->sem); | |
253 | ||
254 | ret = wait_event_interruptible (events->wait_queue, | |
255 | events->eventw != events->eventr); | |
256 | ||
257 | if (down_interruptible (&fepriv->sem)) | |
258 | return -ERESTARTSYS; | |
259 | ||
260 | if (ret < 0) | |
261 | return ret; | |
262 | } | |
263 | ||
77b1e2fb AO |
264 | mutex_lock(&events->mtx); |
265 | *event = events->events[events->eventr]; | |
1da177e4 | 266 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 267 | mutex_unlock(&events->mtx); |
1da177e4 LT |
268 | |
269 | return 0; | |
270 | } | |
271 | ||
20640bea AO |
272 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
273 | { | |
274 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
275 | struct dvb_fe_events *events = &fepriv->events; | |
276 | ||
277 | mutex_lock(&events->mtx); | |
278 | events->eventr = events->eventw; | |
279 | mutex_unlock(&events->mtx); | |
280 | } | |
281 | ||
1da177e4 LT |
282 | static void dvb_frontend_init(struct dvb_frontend *fe) |
283 | { | |
363c35fc | 284 | dprintk ("DVB: initialising adapter %i frontend %i (%s)...\n", |
1da177e4 | 285 | fe->dvb->num, |
363c35fc | 286 | fe->id, |
dea74869 PB |
287 | fe->ops.info.name); |
288 | ||
289 | if (fe->ops.init) | |
290 | fe->ops.init(fe); | |
291 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
292 | if (fe->ops.i2c_gate_ctrl) |
293 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
294 | fe->ops.tuner_ops.init(fe); |
295 | if (fe->ops.i2c_gate_ctrl) | |
296 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 297 | } |
1da177e4 LT |
298 | } |
299 | ||
86f40cc3 AQ |
300 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
301 | { | |
302 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
303 | ||
304 | fepriv->reinitialise = 1; | |
305 | dvb_frontend_wakeup(fe); | |
306 | } | |
307 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
308 | ||
36cb557a | 309 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 310 | { |
36cb557a | 311 | int q2; |
1da177e4 | 312 | |
46b4f7c1 | 313 | dprintk ("%s\n", __func__); |
1da177e4 | 314 | |
36cb557a AQ |
315 | if (locked) |
316 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
317 | else | |
318 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 319 | |
36cb557a AQ |
320 | q2 = fepriv->quality - 128; |
321 | q2 *= q2; | |
1da177e4 | 322 | |
36cb557a | 323 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
324 | } |
325 | ||
326 | /** | |
327 | * Performs automatic twiddling of frontend parameters. | |
328 | * | |
329 | * @param fe The frontend concerned. | |
330 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
331 | * @returns Number of complete iterations that have been performed. | |
332 | */ | |
36cb557a | 333 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
334 | { |
335 | int autoinversion; | |
336 | int ready = 0; | |
01886255 | 337 | int fe_set_err = 0; |
0c53c70f | 338 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
339 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
340 | int original_inversion = c->inversion; | |
341 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
342 | |
343 | /* are we using autoinversion? */ | |
dea74869 | 344 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 345 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
346 | |
347 | /* setup parameters correctly */ | |
348 | while(!ready) { | |
349 | /* calculate the lnb_drift */ | |
350 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
351 | ||
352 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
353 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
354 | fepriv->auto_step = 0; | |
355 | fepriv->auto_sub_step = 0; | |
356 | fepriv->lnb_drift = 0; | |
357 | } | |
358 | ||
359 | /* perform inversion and +/- zigzag */ | |
360 | switch(fepriv->auto_sub_step) { | |
361 | case 0: | |
362 | /* try with the current inversion and current drift setting */ | |
363 | ready = 1; | |
364 | break; | |
365 | ||
366 | case 1: | |
367 | if (!autoinversion) break; | |
368 | ||
369 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
370 | ready = 1; | |
371 | break; | |
372 | ||
373 | case 2: | |
374 | if (fepriv->lnb_drift == 0) break; | |
375 | ||
376 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
377 | ready = 1; | |
378 | break; | |
379 | ||
380 | case 3: | |
381 | if (fepriv->lnb_drift == 0) break; | |
382 | if (!autoinversion) break; | |
383 | ||
384 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
385 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
386 | ready = 1; | |
387 | break; | |
388 | ||
389 | default: | |
390 | fepriv->auto_step++; | |
391 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
392 | break; | |
393 | } | |
394 | ||
395 | if (!ready) fepriv->auto_sub_step++; | |
396 | } | |
397 | ||
398 | /* if this attempt would hit where we started, indicate a complete | |
399 | * iteration has occurred */ | |
400 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
401 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
402 | return 1; | |
403 | } | |
404 | ||
405 | dprintk("%s: drift:%i inversion:%i auto_step:%i " | |
406 | "auto_sub_step:%i started_auto_step:%i\n", | |
46b4f7c1 | 407 | __func__, fepriv->lnb_drift, fepriv->inversion, |
1da177e4 LT |
408 | fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step); |
409 | ||
410 | /* set the frontend itself */ | |
ac3852c4 | 411 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 412 | if (autoinversion) |
ac3852c4 MCC |
413 | c->inversion = fepriv->inversion; |
414 | tmp = *c; | |
dea74869 | 415 | if (fe->ops.set_frontend) |
bc9cd273 | 416 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 417 | *c = tmp; |
01886255 JG |
418 | if (fe_set_err < 0) { |
419 | fepriv->state = FESTATE_ERROR; | |
420 | return fe_set_err; | |
421 | } | |
1da177e4 | 422 | |
ac3852c4 MCC |
423 | c->frequency = original_frequency; |
424 | c->inversion = original_inversion; | |
1da177e4 LT |
425 | |
426 | fepriv->auto_sub_step++; | |
427 | return 0; | |
428 | } | |
429 | ||
36cb557a AQ |
430 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
431 | { | |
30d9464c | 432 | fe_status_t s = 0; |
01886255 | 433 | int retval = 0; |
36cb557a | 434 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 435 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
436 | |
437 | /* if we've got no parameters, just keep idling */ | |
438 | if (fepriv->state & FESTATE_IDLE) { | |
439 | fepriv->delay = 3*HZ; | |
440 | fepriv->quality = 0; | |
441 | return; | |
442 | } | |
443 | ||
444 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
445 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
446 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 447 | tmp = *c; |
dea74869 | 448 | if (fe->ops.set_frontend) |
bc9cd273 | 449 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 450 | *c = tmp; |
01886255 JG |
451 | if (retval < 0) |
452 | fepriv->state = FESTATE_ERROR; | |
453 | else | |
454 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
455 | } |
456 | fepriv->delay = 3*HZ; | |
457 | fepriv->quality = 0; | |
458 | return; | |
459 | } | |
460 | ||
461 | /* get the frontend status */ | |
462 | if (fepriv->state & FESTATE_RETUNE) { | |
463 | s = 0; | |
464 | } else { | |
dea74869 PB |
465 | if (fe->ops.read_status) |
466 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
467 | if (s != fepriv->status) { |
468 | dvb_frontend_add_event(fe, s); | |
469 | fepriv->status = s; | |
470 | } | |
471 | } | |
472 | ||
473 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
474 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
475 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
476 | fepriv->state = FESTATE_TUNED; | |
477 | ||
478 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 479 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
480 | (c->inversion == INVERSION_AUTO)) { |
481 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
482 | } |
483 | return; | |
484 | } | |
485 | ||
486 | /* if we are tuned already, check we're still locked */ | |
487 | if (fepriv->state & FESTATE_TUNED) { | |
488 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
489 | ||
490 | /* we're tuned, and the lock is still good... */ | |
491 | if (s & FE_HAS_LOCK) { | |
492 | return; | |
493 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
494 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
495 | fepriv->started_auto_step = fepriv->auto_step; | |
496 | fepriv->check_wrapped = 0; | |
497 | } | |
498 | } | |
499 | ||
500 | /* don't actually do anything if we're in the LOSTLOCK state, | |
501 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
502 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 503 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
504 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
505 | return; | |
506 | } | |
507 | ||
508 | /* don't do anything if we're in the DISEQC state, since this | |
509 | * might be someone with a motorized dish controlled by DISEQC. | |
510 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
511 | if (fepriv->state & FESTATE_DISEQC) { | |
512 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
513 | return; | |
514 | } | |
515 | ||
516 | /* if we're in the RETUNE state, set everything up for a brand | |
517 | * new scan, keeping the current inversion setting, as the next | |
518 | * tune is _very_ likely to require the same */ | |
519 | if (fepriv->state & FESTATE_RETUNE) { | |
520 | fepriv->lnb_drift = 0; | |
521 | fepriv->auto_step = 0; | |
522 | fepriv->auto_sub_step = 0; | |
523 | fepriv->started_auto_step = 0; | |
524 | fepriv->check_wrapped = 0; | |
525 | } | |
526 | ||
527 | /* fast zigzag. */ | |
528 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
529 | fepriv->delay = fepriv->min_delay; | |
530 | ||
2030c032 | 531 | /* perform a tune */ |
01886255 JG |
532 | retval = dvb_frontend_swzigzag_autotune(fe, |
533 | fepriv->check_wrapped); | |
534 | if (retval < 0) { | |
535 | return; | |
536 | } else if (retval) { | |
36cb557a AQ |
537 | /* OK, if we've run out of trials at the fast speed. |
538 | * Drop back to slow for the _next_ attempt */ | |
539 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
540 | fepriv->started_auto_step = fepriv->auto_step; | |
541 | return; | |
542 | } | |
543 | fepriv->check_wrapped = 1; | |
544 | ||
545 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
546 | * This ensures we cannot return from an | |
547 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
548 | * occurs */ | |
549 | if (fepriv->state & FESTATE_RETUNE) { | |
550 | fepriv->state = FESTATE_TUNING_FAST; | |
551 | } | |
552 | } | |
553 | ||
554 | /* slow zigzag */ | |
555 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
556 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
557 | ||
558 | /* Note: don't bother checking for wrapping; we stay in this | |
559 | * state until we get a lock */ | |
560 | dvb_frontend_swzigzag_autotune(fe, 0); | |
561 | } | |
562 | } | |
563 | ||
1da177e4 LT |
564 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
565 | { | |
0c53c70f | 566 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 567 | |
e36309f5 | 568 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
569 | return 1; |
570 | ||
571 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 572 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 573 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
574 | return 1; |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
579 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
580 | { | |
0c53c70f | 581 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
582 | |
583 | if (fepriv->wakeup) { | |
584 | fepriv->wakeup = 0; | |
585 | return 1; | |
586 | } | |
587 | return dvb_frontend_is_exiting(fe); | |
588 | } | |
589 | ||
590 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
591 | { | |
0c53c70f | 592 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
593 | |
594 | fepriv->wakeup = 1; | |
595 | wake_up_interruptible(&fepriv->wait_queue); | |
596 | } | |
597 | ||
1da177e4 LT |
598 | static int dvb_frontend_thread(void *data) |
599 | { | |
0c53c70f JS |
600 | struct dvb_frontend *fe = data; |
601 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 602 | fe_status_t s; |
c59e7870 MA |
603 | enum dvbfe_algo algo; |
604 | ||
7e072221 | 605 | bool re_tune = false; |
1da177e4 | 606 | |
46b4f7c1 | 607 | dprintk("%s\n", __func__); |
1da177e4 | 608 | |
36cb557a AQ |
609 | fepriv->check_wrapped = 0; |
610 | fepriv->quality = 0; | |
611 | fepriv->delay = 3*HZ; | |
1da177e4 | 612 | fepriv->status = 0; |
1da177e4 | 613 | fepriv->wakeup = 0; |
04c56d0e AQ |
614 | fepriv->reinitialise = 0; |
615 | ||
616 | dvb_frontend_init(fe); | |
1da177e4 | 617 | |
83144186 | 618 | set_freezable(); |
1da177e4 LT |
619 | while (1) { |
620 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 621 | restart: |
94238e9b | 622 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
623 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
624 | || freezing(current), | |
8eec1429 HP |
625 | fepriv->delay); |
626 | ||
627 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 628 | /* got signal or quitting */ |
e36309f5 | 629 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
630 | break; |
631 | } | |
632 | ||
8eec1429 | 633 | if (try_to_freeze()) |
6591691b | 634 | goto restart; |
1da177e4 LT |
635 | |
636 | if (down_interruptible(&fepriv->sem)) | |
637 | break; | |
638 | ||
86f40cc3 AQ |
639 | if (fepriv->reinitialise) { |
640 | dvb_frontend_init(fe); | |
42f4e774 | 641 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 642 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 643 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 644 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
645 | fepriv->reinitialise = 0; |
646 | } | |
647 | ||
36cb557a | 648 | /* do an iteration of the tuning loop */ |
d772bd03 | 649 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
650 | algo = fe->ops.get_frontend_algo(fe); |
651 | switch (algo) { | |
652 | case DVBFE_ALGO_HW: | |
653 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); | |
c59e7870 | 654 | |
d772bd03 | 655 | if (fepriv->state & FESTATE_RETUNE) { |
c59e7870 | 656 | dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 657 | re_tune = true; |
d772bd03 MA |
658 | fepriv->state = FESTATE_TUNED; |
659 | } | |
660 | ||
c59e7870 | 661 | if (fe->ops.tune) |
7e072221 | 662 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 663 | |
2fac9a0f | 664 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
c59e7870 | 665 | dprintk("%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
666 | dvb_frontend_add_event(fe, s); |
667 | fepriv->status = s; | |
668 | } | |
c59e7870 MA |
669 | break; |
670 | case DVBFE_ALGO_SW: | |
671 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); | |
70d90635 | 672 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
673 | break; |
674 | case DVBFE_ALGO_CUSTOM: | |
c59e7870 MA |
675 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
676 | if (fepriv->state & FESTATE_RETUNE) { | |
677 | dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__); | |
678 | fepriv->state = FESTATE_TUNED; | |
679 | } | |
680 | /* Case where we are going to search for a carrier | |
681 | * User asked us to retune again for some reason, possibly | |
682 | * requesting a search with a new set of parameters | |
683 | */ | |
684 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 685 | if (fe->ops.search) { |
41da5320 | 686 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
687 | /* We did do a search as was requested, the flags are |
688 | * now unset as well and has the flags wrt to search. | |
689 | */ | |
7bcbdf38 AJ |
690 | } else { |
691 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
692 | } | |
c59e7870 MA |
693 | } |
694 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 695 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
696 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
697 | fepriv->delay = HZ / 2; | |
698 | } | |
a5959dbe | 699 | fepriv->parameters_out = fepriv->parameters_in; |
7bcbdf38 AJ |
700 | fe->ops.read_status(fe, &s); |
701 | if (s != fepriv->status) { | |
702 | dvb_frontend_add_event(fe, s); /* update event list */ | |
703 | fepriv->status = s; | |
704 | if (!(s & FE_HAS_LOCK)) { | |
705 | fepriv->delay = HZ / 10; | |
706 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
707 | } else { | |
708 | fepriv->delay = 60 * HZ; | |
709 | } | |
c59e7870 MA |
710 | } |
711 | break; | |
712 | default: | |
713 | dprintk("%s: UNDEFINED ALGO !\n", __func__); | |
714 | break; | |
715 | } | |
716 | } else { | |
4a4edcca | 717 | dvb_frontend_swzigzag(fe); |
c59e7870 | 718 | } |
1da177e4 LT |
719 | } |
720 | ||
608f62d6 OE |
721 | if (dvb_powerdown_on_sleep) { |
722 | if (fe->ops.set_voltage) | |
723 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 724 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
725 | if (fe->ops.i2c_gate_ctrl) |
726 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
727 | fe->ops.tuner_ops.sleep(fe); |
728 | if (fe->ops.i2c_gate_ctrl) | |
729 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 730 | } |
dea74869 PB |
731 | if (fe->ops.sleep) |
732 | fe->ops.sleep(fe); | |
1da177e4 LT |
733 | } |
734 | ||
8eec1429 | 735 | fepriv->thread = NULL; |
e36309f5 MC |
736 | if (kthread_should_stop()) |
737 | fepriv->exit = DVB_FE_DEVICE_REMOVED; | |
738 | else | |
739 | fepriv->exit = DVB_FE_NO_EXIT; | |
1da177e4 LT |
740 | mb(); |
741 | ||
742 | dvb_frontend_wakeup(fe); | |
743 | return 0; | |
744 | } | |
745 | ||
746 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
747 | { | |
0c53c70f | 748 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 749 | |
46b4f7c1 | 750 | dprintk ("%s\n", __func__); |
1da177e4 | 751 | |
e36309f5 | 752 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
753 | mb(); |
754 | ||
8eec1429 | 755 | if (!fepriv->thread) |
1da177e4 LT |
756 | return; |
757 | ||
8eec1429 | 758 | kthread_stop(fepriv->thread); |
ca5be9cd | 759 | |
a0a4714c | 760 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
761 | fepriv->state = FESTATE_IDLE; |
762 | ||
763 | /* paranoia check in case a signal arrived */ | |
8eec1429 HP |
764 | if (fepriv->thread) |
765 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", | |
766 | fepriv->thread); | |
1da177e4 LT |
767 | } |
768 | ||
83b75b04 N |
769 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
770 | { | |
771 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
772 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
773 | curtime.tv_usec - lasttime.tv_usec); | |
774 | } | |
775 | EXPORT_SYMBOL(timeval_usec_diff); | |
776 | ||
777 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
778 | { | |
779 | curtime->tv_usec += add_usec; | |
780 | if (curtime->tv_usec >= 1000000) { | |
781 | curtime->tv_usec -= 1000000; | |
782 | curtime->tv_sec++; | |
783 | } | |
784 | } | |
785 | ||
786 | /* | |
787 | * Sleep until gettimeofday() > waketime + add_usec | |
788 | * This needs to be as precise as possible, but as the delay is | |
789 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
790 | * followed by usleep (normally a busy-wait loop) for the remainder | |
791 | */ | |
792 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
793 | { | |
794 | struct timeval lasttime; | |
795 | s32 delta, newdelta; | |
796 | ||
797 | timeval_usec_add(waketime, add_usec); | |
798 | ||
799 | do_gettimeofday(&lasttime); | |
800 | delta = timeval_usec_diff(lasttime, *waketime); | |
801 | if (delta > 2500) { | |
802 | msleep((delta - 1500) / 1000); | |
803 | do_gettimeofday(&lasttime); | |
804 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
805 | delta = (newdelta > delta) ? 0 : newdelta; | |
806 | } | |
807 | if (delta > 0) | |
808 | udelay(delta); | |
809 | } | |
810 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
811 | ||
1da177e4 LT |
812 | static int dvb_frontend_start(struct dvb_frontend *fe) |
813 | { | |
814 | int ret; | |
0c53c70f | 815 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 816 | struct task_struct *fe_thread; |
1da177e4 | 817 | |
46b4f7c1 | 818 | dprintk ("%s\n", __func__); |
1da177e4 | 819 | |
8eec1429 | 820 | if (fepriv->thread) { |
e36309f5 | 821 | if (fepriv->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
822 | return 0; |
823 | else | |
824 | dvb_frontend_stop (fe); | |
825 | } | |
826 | ||
827 | if (signal_pending(current)) | |
828 | return -EINTR; | |
829 | if (down_interruptible (&fepriv->sem)) | |
830 | return -EINTR; | |
831 | ||
832 | fepriv->state = FESTATE_IDLE; | |
e36309f5 | 833 | fepriv->exit = DVB_FE_NO_EXIT; |
8eec1429 | 834 | fepriv->thread = NULL; |
1da177e4 LT |
835 | mb(); |
836 | ||
8eec1429 | 837 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 838 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
839 | if (IS_ERR(fe_thread)) { |
840 | ret = PTR_ERR(fe_thread); | |
841 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); | |
1da177e4 LT |
842 | up(&fepriv->sem); |
843 | return ret; | |
844 | } | |
8eec1429 | 845 | fepriv->thread = fe_thread; |
1da177e4 LT |
846 | return 0; |
847 | } | |
848 | ||
2030c032 | 849 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
850 | u32 *freq_min, u32 *freq_max) |
851 | { | |
852 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
853 | ||
854 | if (fe->ops.info.frequency_max == 0) | |
855 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
856 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
857 | *freq_max = fe->ops.info.frequency_max; | |
858 | else | |
859 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
860 | ||
861 | if (*freq_min == 0 || *freq_max == 0) | |
363c35fc ST |
862 | printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
863 | fe->dvb->num,fe->id); | |
c471b331 OE |
864 | } |
865 | ||
5bfaadde | 866 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 867 | { |
5bfaadde | 868 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
869 | u32 freq_min; |
870 | u32 freq_max; | |
871 | ||
1fab46f0 | 872 | /* range check: frequency */ |
2030c032 | 873 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
874 | if ((freq_min && c->frequency < freq_min) || |
875 | (freq_max && c->frequency > freq_max)) { | |
363c35fc | 876 | printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
5bfaadde | 877 | fe->dvb->num, fe->id, c->frequency, freq_min, freq_max); |
1fab46f0 OE |
878 | return -EINVAL; |
879 | } | |
880 | ||
881 | /* range check: symbol rate */ | |
5bfaadde MCC |
882 | switch (c->delivery_system) { |
883 | case SYS_DVBS: | |
884 | case SYS_DVBS2: | |
885 | case SYS_TURBO: | |
886 | case SYS_DVBC_ANNEX_A: | |
887 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 888 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 889 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 890 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 891 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
363c35fc | 892 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
5bfaadde MCC |
893 | fe->dvb->num, fe->id, c->symbol_rate, |
894 | fe->ops.info.symbol_rate_min, | |
895 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
896 | return -EINVAL; |
897 | } | |
5bfaadde MCC |
898 | default: |
899 | break; | |
1fab46f0 OE |
900 | } |
901 | ||
5bfaadde MCC |
902 | /* |
903 | * check for supported modulation | |
904 | * | |
905 | * This is currently hacky. Also, it only works for DVB-S & friends, | |
906 | * and not all modulations has FE_CAN flags | |
907 | */ | |
908 | switch (c->delivery_system) { | |
909 | case SYS_DVBS: | |
910 | case SYS_DVBS2: | |
911 | case SYS_TURBO: | |
912 | if ((c->modulation > QAM_AUTO || | |
913 | !((1 << (c->modulation + 10)) & fe->ops.info.caps))) { | |
914 | printk(KERN_WARNING | |
915 | "DVB: adapter %i frontend %i modulation %u not supported\n", | |
916 | fe->dvb->num, fe->id, c->modulation); | |
f51fad85 | 917 | return -EINVAL; |
5bfaadde MCC |
918 | } |
919 | break; | |
920 | default: | |
921 | /* FIXME: it makes sense to validate othere delsys here */ | |
922 | break; | |
f51fad85 JG |
923 | } |
924 | ||
1fab46f0 OE |
925 | return 0; |
926 | } | |
927 | ||
b6e760f3 PB |
928 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
929 | { | |
50727719 | 930 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 PB |
931 | int i; |
932 | ||
50727719 AO |
933 | memset(c, 0, sizeof(struct dtv_frontend_properties)); |
934 | ||
935 | c->state = DTV_CLEAR; | |
26c924fe MCC |
936 | |
937 | c->delivery_system = fe->ops.delsys[0]; | |
5bfaadde MCC |
938 | dprintk("%s() Clearing cache for delivery system %d\n", __func__, |
939 | c->delivery_system); | |
26c924fe | 940 | |
50727719 | 941 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 942 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
943 | c->guard_interval = GUARD_INTERVAL_AUTO; |
944 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 945 | c->symbol_rate = 0; |
50727719 AO |
946 | c->code_rate_HP = FEC_AUTO; |
947 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 948 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 949 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 950 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
951 | c->sectone = SEC_TONE_OFF; |
952 | c->pilot = PILOT_AUTO; | |
50727719 AO |
953 | |
954 | c->isdbt_partial_reception = -1; | |
955 | c->isdbt_sb_mode = -1; | |
956 | c->isdbt_sb_subchannel = -1; | |
957 | c->isdbt_sb_segment_idx = -1; | |
958 | c->isdbt_sb_segment_count = -1; | |
959 | c->isdbt_layer_enabled = 0x7; | |
b6e760f3 | 960 | for (i = 0; i < 3; i++) { |
50727719 AO |
961 | c->layer[i].fec = FEC_AUTO; |
962 | c->layer[i].modulation = QAM_AUTO; | |
963 | c->layer[i].interleaving = -1; | |
964 | c->layer[i].segment_count = -1; | |
b6e760f3 PB |
965 | } |
966 | ||
26c924fe MCC |
967 | c->isdbs_ts_id = 0; |
968 | c->dvbt2_plp_id = 0; | |
969 | ||
5bfaadde MCC |
970 | switch (c->delivery_system) { |
971 | case SYS_DVBS: | |
972 | case SYS_DVBS2: | |
973 | case SYS_TURBO: | |
974 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
975 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
976 | break; | |
977 | case SYS_ATSC: | |
978 | c->modulation = VSB_8; | |
979 | break; | |
980 | default: | |
981 | c->modulation = QAM_AUTO; | |
982 | break; | |
983 | } | |
984 | ||
b6e760f3 PB |
985 | return 0; |
986 | } | |
987 | ||
988 | #define _DTV_CMD(n, s, b) \ | |
989 | [n] = { \ | |
990 | .name = #n, \ | |
991 | .cmd = n, \ | |
992 | .set = s,\ | |
993 | .buffer = b \ | |
994 | } | |
995 | ||
ec05a642 | 996 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
997 | _DTV_CMD(DTV_TUNE, 1, 0), |
998 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
999 | |
1000 | /* Set */ | |
06d3a396 MCC |
1001 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
1002 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
1003 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
1004 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
1005 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
1006 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
1007 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
1008 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
1009 | _DTV_CMD(DTV_TONE, 1, 0), | |
1010 | _DTV_CMD(DTV_PILOT, 1, 0), | |
1011 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
1012 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
1013 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
1014 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
1015 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
1016 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
1017 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
b6e760f3 PB |
1018 | |
1019 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
1020 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
1021 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1022 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1023 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1024 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1025 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1026 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1027 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1028 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1029 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1030 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1031 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1032 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1033 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1034 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1035 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1036 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1037 | ||
1038 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 0, 0), | |
1039 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 0, 0), | |
1040 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 0, 0), | |
1041 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 0, 0), | |
1042 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 0, 0), | |
e7b7949a | 1043 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 0, 0), |
b6e760f3 PB |
1044 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 0, 0), |
1045 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 0, 0), | |
1046 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 0, 0), | |
1047 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 0, 0), | |
1048 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 0, 0), | |
1049 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 0, 0), | |
1050 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 0, 0), | |
1051 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 0, 0), | |
1052 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 0, 0), | |
1053 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 0, 0), | |
1054 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 0, 0), | |
1055 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 0, 0), | |
1056 | ||
98293ef3 | 1057 | _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0), |
ec05a642 | 1058 | _DTV_CMD(DTV_DVBT2_PLP_ID, 1, 0), |
98293ef3 | 1059 | |
6b73eeaf | 1060 | /* Get */ |
06d3a396 MCC |
1061 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1062 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
1063 | _DTV_CMD(DTV_CODE_RATE_HP, 0, 0), | |
1064 | _DTV_CMD(DTV_CODE_RATE_LP, 0, 0), | |
1065 | _DTV_CMD(DTV_GUARD_INTERVAL, 0, 0), | |
1066 | _DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0), | |
1067 | _DTV_CMD(DTV_HIERARCHY, 0, 0), | |
ba2780c7 MA |
1068 | |
1069 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
6b73eeaf ST |
1070 | }; |
1071 | ||
072ce0c5 | 1072 | static void dtv_property_dump(struct dtv_property *tvp) |
6b73eeaf ST |
1073 | { |
1074 | int i; | |
1075 | ||
106ff9e0 | 1076 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
a1bc84c0 | 1077 | printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n", |
4aae8efb DB |
1078 | __func__, tvp->cmd); |
1079 | return; | |
1080 | } | |
1081 | ||
a1bc84c0 ST |
1082 | dprintk("%s() tvp.cmd = 0x%08x (%s)\n" |
1083 | ,__func__ | |
6b73eeaf | 1084 | ,tvp->cmd |
56f0680a | 1085 | ,dtv_cmds[ tvp->cmd ].name); |
6b73eeaf | 1086 | |
56f0680a | 1087 | if(dtv_cmds[ tvp->cmd ].buffer) { |
6b73eeaf | 1088 | |
a1bc84c0 ST |
1089 | dprintk("%s() tvp.u.buffer.len = 0x%02x\n" |
1090 | ,__func__ | |
6b73eeaf ST |
1091 | ,tvp->u.buffer.len); |
1092 | ||
1093 | for(i = 0; i < tvp->u.buffer.len; i++) | |
a1bc84c0 ST |
1094 | dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
1095 | ,__func__ | |
6b73eeaf ST |
1096 | ,i |
1097 | ,tvp->u.buffer.data[i]); | |
1098 | ||
1099 | } else | |
a1bc84c0 | 1100 | dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data); |
6b73eeaf ST |
1101 | } |
1102 | ||
ee33c525 ST |
1103 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1104 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1105 | * it's being used for the legacy or new API, reducing code and complexity. | |
1106 | */ | |
5bfaadde MCC |
1107 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1108 | struct dtv_frontend_properties *c, | |
1109 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1110 | { |
ee33c525 ST |
1111 | c->frequency = p->frequency; |
1112 | c->inversion = p->inversion; | |
1113 | ||
5bfaadde MCC |
1114 | switch (dvbv3_type(c->delivery_system)) { |
1115 | case DVBV3_QPSK: | |
1116 | dprintk("%s() Preparing QPSK req\n", __func__); | |
ee33c525 ST |
1117 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1118 | c->fec_inner = p->u.qpsk.fec_inner; | |
1119 | break; | |
5bfaadde MCC |
1120 | case DVBV3_QAM: |
1121 | dprintk("%s() Preparing QAM req\n", __func__); | |
ee33c525 ST |
1122 | c->symbol_rate = p->u.qam.symbol_rate; |
1123 | c->fec_inner = p->u.qam.fec_inner; | |
1124 | c->modulation = p->u.qam.modulation; | |
1125 | break; | |
5bfaadde MCC |
1126 | case DVBV3_OFDM: |
1127 | dprintk("%s() Preparing OFDM req\n", __func__); | |
9a27e6a0 MCC |
1128 | switch (p->u.ofdm.bandwidth) { |
1129 | case BANDWIDTH_10_MHZ: | |
1130 | c->bandwidth_hz = 10000000; | |
1131 | break; | |
1132 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1133 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1134 | break; |
1135 | case BANDWIDTH_7_MHZ: | |
1136 | c->bandwidth_hz = 7000000; | |
1137 | break; | |
1138 | case BANDWIDTH_6_MHZ: | |
1139 | c->bandwidth_hz = 6000000; | |
1140 | break; | |
1141 | case BANDWIDTH_5_MHZ: | |
1142 | c->bandwidth_hz = 5000000; | |
1143 | break; | |
1144 | case BANDWIDTH_1_712_MHZ: | |
1145 | c->bandwidth_hz = 1712000; | |
1146 | break; | |
1147 | case BANDWIDTH_AUTO: | |
75b7f943 | 1148 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1149 | } |
1150 | ||
ee33c525 ST |
1151 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1152 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1153 | c->modulation = p->u.ofdm.constellation; | |
1154 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1155 | c->guard_interval = p->u.ofdm.guard_interval; | |
1156 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1157 | break; | |
5bfaadde MCC |
1158 | case DVBV3_ATSC: |
1159 | dprintk("%s() Preparing ATSC req\n", __func__); | |
ee33c525 | 1160 | c->modulation = p->u.vsb.modulation; |
80a773c9 ST |
1161 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1162 | c->delivery_system = SYS_ATSC; | |
1163 | else | |
1164 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1165 | break; |
5bfaadde MCC |
1166 | case DVBV3_UNKNOWN: |
1167 | printk(KERN_ERR | |
1168 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1169 | __func__, c->delivery_system); | |
1170 | return -EINVAL; | |
ee33c525 | 1171 | } |
5bfaadde MCC |
1172 | |
1173 | return 0; | |
ee33c525 ST |
1174 | } |
1175 | ||
d5748f10 ST |
1176 | /* Ensure the cached values are set correctly in the frontend |
1177 | * legacy tuning structures, for the advanced tuning API. | |
1178 | */ | |
5bfaadde | 1179 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
a689e365 | 1180 | struct dvb_frontend_parameters *p) |
6b73eeaf | 1181 | { |
15cc2bb3 | 1182 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1183 | |
d5748f10 ST |
1184 | p->frequency = c->frequency; |
1185 | p->inversion = c->inversion; | |
6b73eeaf | 1186 | |
5bfaadde MCC |
1187 | switch (dvbv3_type(c->delivery_system)) { |
1188 | case DVBV3_UNKNOWN: | |
1189 | printk(KERN_ERR | |
1190 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1191 | __func__, c->delivery_system); | |
1192 | return -EINVAL; | |
1193 | case DVBV3_QPSK: | |
a1bc84c0 | 1194 | dprintk("%s() Preparing QPSK req\n", __func__); |
d5748f10 ST |
1195 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1196 | p->u.qpsk.fec_inner = c->fec_inner; | |
1197 | break; | |
5bfaadde | 1198 | case DVBV3_QAM: |
a1bc84c0 | 1199 | dprintk("%s() Preparing QAM req\n", __func__); |
d5748f10 ST |
1200 | p->u.qam.symbol_rate = c->symbol_rate; |
1201 | p->u.qam.fec_inner = c->fec_inner; | |
1202 | p->u.qam.modulation = c->modulation; | |
1203 | break; | |
5bfaadde | 1204 | case DVBV3_OFDM: |
a1bc84c0 | 1205 | dprintk("%s() Preparing OFDM req\n", __func__); |
5bfaadde | 1206 | |
9a27e6a0 MCC |
1207 | switch (c->bandwidth_hz) { |
1208 | case 10000000: | |
1209 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1210 | break; | |
1211 | case 8000000: | |
75b7f943 | 1212 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1213 | break; |
1214 | case 7000000: | |
1215 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1216 | break; | |
1217 | case 6000000: | |
1218 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1219 | break; | |
1220 | case 5000000: | |
1221 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1222 | break; | |
1223 | case 1712000: | |
1224 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1225 | break; | |
1226 | case 0: | |
1227 | default: | |
75b7f943 | 1228 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1229 | } |
d5748f10 ST |
1230 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1231 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1232 | p->u.ofdm.constellation = c->modulation; | |
1233 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1234 | p->u.ofdm.guard_interval = c->guard_interval; | |
1235 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1236 | break; | |
5bfaadde | 1237 | case DVBV3_ATSC: |
a1bc84c0 | 1238 | dprintk("%s() Preparing VSB req\n", __func__); |
d5748f10 ST |
1239 | p->u.vsb.modulation = c->modulation; |
1240 | break; | |
1241 | } | |
5bfaadde | 1242 | return 0; |
6b73eeaf ST |
1243 | } |
1244 | ||
a689e365 MCC |
1245 | /** |
1246 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1247 | * @fe: struct dvb_frontend pointer | |
1248 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1249 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1250 | * | |
1251 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1252 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1253 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1254 | */ | |
1255 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
a689e365 MCC |
1256 | struct dvb_frontend_parameters *p_out) |
1257 | { | |
a689e365 MCC |
1258 | int r; |
1259 | ||
a689e365 | 1260 | if (fe->ops.get_frontend) { |
7c61d80a | 1261 | r = fe->ops.get_frontend(fe); |
a689e365 MCC |
1262 | if (unlikely(r < 0)) |
1263 | return r; | |
7c61d80a | 1264 | if (p_out) |
a689e365 MCC |
1265 | dtv_property_legacy_params_sync(fe, p_out); |
1266 | return 0; | |
1267 | } | |
1268 | ||
7c61d80a | 1269 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1270 | return 0; |
a689e365 MCC |
1271 | } |
1272 | ||
16ef8def | 1273 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1274 | unsigned int cmd, void *parg); |
16ef8def | 1275 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1276 | unsigned int cmd, void *parg); |
1277 | ||
072ce0c5 | 1278 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1279 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1280 | struct dtv_property *tvp, |
16ef8def | 1281 | struct file *file) |
363429a0 | 1282 | { |
5bfaadde | 1283 | int r, ncaps; |
bfbf2dae | 1284 | |
363429a0 | 1285 | switch(tvp->cmd) { |
ba2780c7 | 1286 | case DTV_ENUM_DELSYS: |
5bfaadde MCC |
1287 | ncaps = 0; |
1288 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1289 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; | |
1290 | ncaps++; | |
1291 | } | |
1292 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1293 | break; |
363429a0 | 1294 | case DTV_FREQUENCY: |
50727719 | 1295 | tvp->u.data = c->frequency; |
363429a0 ST |
1296 | break; |
1297 | case DTV_MODULATION: | |
50727719 | 1298 | tvp->u.data = c->modulation; |
363429a0 | 1299 | break; |
75b7f943 | 1300 | case DTV_BANDWIDTH_HZ: |
50727719 | 1301 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1302 | break; |
1303 | case DTV_INVERSION: | |
50727719 | 1304 | tvp->u.data = c->inversion; |
363429a0 ST |
1305 | break; |
1306 | case DTV_SYMBOL_RATE: | |
50727719 | 1307 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1308 | break; |
1309 | case DTV_INNER_FEC: | |
50727719 | 1310 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1311 | break; |
1312 | case DTV_PILOT: | |
50727719 | 1313 | tvp->u.data = c->pilot; |
363429a0 ST |
1314 | break; |
1315 | case DTV_ROLLOFF: | |
50727719 | 1316 | tvp->u.data = c->rolloff; |
363429a0 ST |
1317 | break; |
1318 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1319 | tvp->u.data = c->delivery_system; |
363429a0 | 1320 | break; |
363429a0 | 1321 | case DTV_VOLTAGE: |
50727719 | 1322 | tvp->u.data = c->voltage; |
363429a0 ST |
1323 | break; |
1324 | case DTV_TONE: | |
50727719 | 1325 | tvp->u.data = c->sectone; |
363429a0 | 1326 | break; |
eacf8d8d ST |
1327 | case DTV_API_VERSION: |
1328 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1329 | break; | |
a4de91be | 1330 | case DTV_CODE_RATE_HP: |
50727719 | 1331 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1332 | break; |
1333 | case DTV_CODE_RATE_LP: | |
50727719 | 1334 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1335 | break; |
b87625f0 | 1336 | case DTV_GUARD_INTERVAL: |
50727719 | 1337 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1338 | break; |
1339 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1340 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1341 | break; |
ef526f42 | 1342 | case DTV_HIERARCHY: |
50727719 | 1343 | tvp->u.data = c->hierarchy; |
ef526f42 | 1344 | break; |
b6e760f3 PB |
1345 | |
1346 | /* ISDB-T Support here */ | |
1347 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1348 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1349 | break; |
1350 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1351 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1352 | break; |
1353 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1354 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1355 | break; |
1356 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1357 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1358 | break; |
1359 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1360 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1361 | break; |
e7b7949a | 1362 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1363 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1364 | break; |
b6e760f3 | 1365 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1366 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1367 | break; |
1368 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1369 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1370 | break; |
1371 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1372 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1373 | break; |
1374 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1375 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1376 | break; |
1377 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1378 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1379 | break; |
1380 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1381 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1382 | break; |
1383 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1384 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1385 | break; |
1386 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1387 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1388 | break; |
1389 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1390 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1391 | break; |
1392 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1393 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1394 | break; |
1395 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1396 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1397 | break; |
1398 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1399 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1400 | break; |
98293ef3 | 1401 | case DTV_ISDBS_TS_ID: |
50727719 | 1402 | tvp->u.data = c->isdbs_ts_id; |
98293ef3 | 1403 | break; |
94d56ffa | 1404 | case DTV_DVBT2_PLP_ID: |
50727719 | 1405 | tvp->u.data = c->dvbt2_plp_id; |
94d56ffa | 1406 | break; |
363429a0 | 1407 | default: |
aff8ab5c | 1408 | return -EINVAL; |
363429a0 ST |
1409 | } |
1410 | ||
e23d9ae3 AO |
1411 | /* Allow the frontend to override outgoing properties */ |
1412 | if (fe->ops.get_property) { | |
1413 | r = fe->ops.get_property(fe, tvp); | |
1414 | if (r < 0) | |
1415 | return r; | |
1416 | } | |
1417 | ||
639544d7 MCC |
1418 | dtv_property_dump(tvp); |
1419 | ||
aff8ab5c | 1420 | return 0; |
363429a0 ST |
1421 | } |
1422 | ||
5bfaadde MCC |
1423 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1424 | ||
04be0f76 MCC |
1425 | static bool is_dvbv3_delsys(u32 delsys) |
1426 | { | |
1427 | bool status; | |
1428 | ||
1429 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || | |
1430 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
1431 | ||
1432 | return status; | |
1433 | } | |
1434 | ||
1435 | static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system) | |
1436 | { | |
1437 | int ncaps, i; | |
1438 | u32 delsys = SYS_UNDEFINED; | |
1439 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1440 | enum dvbv3_emulation_type type; | |
1441 | ||
1442 | if (desired_system == SYS_UNDEFINED) { | |
1443 | /* | |
1444 | * A DVBv3 call doesn't know what's the desired system. | |
1445 | * So, don't change the current delivery system. Instead, | |
1446 | * find the closest DVBv3 system that matches the delivery | |
1447 | * system. | |
1448 | */ | |
1449 | if (is_dvbv3_delsys(c->delivery_system)) { | |
1450 | dprintk("%s() Using delivery system to %d\n", | |
1451 | __func__, c->delivery_system); | |
1452 | return 0; | |
1453 | } | |
1454 | type = dvbv3_type(c->delivery_system); | |
1455 | switch (type) { | |
1456 | case DVBV3_QPSK: | |
1457 | desired_system = FE_QPSK; | |
1458 | break; | |
1459 | case DVBV3_QAM: | |
1460 | desired_system = FE_QAM; | |
1461 | break; | |
1462 | case DVBV3_ATSC: | |
1463 | desired_system = FE_ATSC; | |
1464 | break; | |
1465 | case DVBV3_OFDM: | |
1466 | desired_system = FE_OFDM; | |
1467 | break; | |
1468 | default: | |
1469 | dprintk("%s(): This frontend doesn't support DVBv3 calls\n", | |
1470 | __func__); | |
1471 | return -EINVAL; | |
1472 | } | |
1473 | delsys = c->delivery_system; | |
1474 | } else { | |
1475 | /* | |
1476 | * Check if the desired delivery system is supported | |
1477 | */ | |
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 | } | |
1486 | } | |
1487 | type = dvbv3_type(desired_system); | |
1488 | ||
1489 | /* | |
1490 | * The delivery system is not supported. See if it can be | |
1491 | * emulated. | |
1492 | * The emulation only works if the desired system is one of the | |
1493 | * DVBv3 delivery systems | |
1494 | */ | |
1495 | if (!is_dvbv3_delsys(desired_system)) { | |
1496 | dprintk("%s() can't use a DVBv3 FE_SET_FRONTEND call on this frontend\n", | |
1497 | __func__); | |
1498 | return -EINVAL; | |
1499 | } | |
1500 | ||
1501 | /* | |
1502 | * Get the last non-DVBv3 delivery system that has the same type | |
1503 | * of the desired system | |
1504 | */ | |
1505 | ncaps = 0; | |
1506 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1507 | if ((dvbv3_type(fe->ops.delsys[ncaps]) == type) && | |
1508 | !is_dvbv3_delsys(fe->ops.delsys[ncaps])) | |
1509 | delsys = fe->ops.delsys[ncaps]; | |
1510 | ncaps++; | |
1511 | } | |
1512 | /* There's nothing compatible with the desired delivery system */ | |
1513 | if (delsys == SYS_UNDEFINED) { | |
1514 | dprintk("%s() Incompatible DVBv3 FE_SET_FRONTEND call for this frontend\n", | |
1515 | __func__); | |
1516 | return -EINVAL; | |
1517 | } | |
1518 | c->delivery_system = delsys; | |
1519 | } | |
1520 | ||
1521 | /* | |
1522 | * Emulate newer delivery systems like ISDBT, DVBT and DMBTH | |
1523 | * for older DVBv5 applications. The emulation will try to use | |
1524 | * the auto mode for most things, and will assume that the desired | |
1525 | * delivery system is the last one at the ops.delsys[] array | |
1526 | */ | |
1527 | dprintk("%s() Using delivery system %d emulated as if it were a %d\n", | |
1528 | __func__, delsys, desired_system); | |
1529 | ||
1530 | /* | |
1531 | * For now, uses it for ISDB-T, DMBTH and DVB-T2 | |
1532 | * For DVB-S2 and DVB-TURBO, assumes that the DVB-S parameters are enough. | |
1533 | */ | |
1534 | if (type == DVBV3_OFDM) { | |
1535 | c->modulation = QAM_AUTO; | |
1536 | c->code_rate_HP = FEC_AUTO; | |
1537 | c->code_rate_LP = FEC_AUTO; | |
1538 | c->transmission_mode = TRANSMISSION_MODE_AUTO; | |
1539 | c->guard_interval = GUARD_INTERVAL_AUTO; | |
1540 | c->hierarchy = HIERARCHY_AUTO; | |
1541 | ||
1542 | c->isdbt_partial_reception = -1; | |
1543 | c->isdbt_sb_mode = -1; | |
1544 | c->isdbt_sb_subchannel = -1; | |
1545 | c->isdbt_sb_segment_idx = -1; | |
1546 | c->isdbt_sb_segment_count = -1; | |
1547 | c->isdbt_layer_enabled = 0x7; | |
1548 | for (i = 0; i < 3; i++) { | |
1549 | c->layer[i].fec = FEC_AUTO; | |
1550 | c->layer[i].modulation = QAM_AUTO; | |
1551 | c->layer[i].interleaving = -1; | |
1552 | c->layer[i].segment_count = -1; | |
1553 | } | |
1554 | } | |
1555 | return 0; | |
1556 | } | |
1557 | ||
072ce0c5 MCC |
1558 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1559 | struct dtv_property *tvp, | |
072ce0c5 | 1560 | struct file *file) |
6b73eeaf ST |
1561 | { |
1562 | int r = 0; | |
50727719 | 1563 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
13c97bf5 | 1564 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
56f0680a | 1565 | dtv_property_dump(tvp); |
6b73eeaf | 1566 | |
bfbf2dae | 1567 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1568 | if (fe->ops.set_property) { |
bfbf2dae | 1569 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1570 | if (r < 0) |
1571 | return r; | |
1572 | } | |
bfbf2dae | 1573 | |
6b73eeaf | 1574 | switch(tvp->cmd) { |
e7fee0f3 | 1575 | case DTV_CLEAR: |
5bfaadde MCC |
1576 | /* |
1577 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1578 | * not effect hardware. |
1579 | */ | |
b6e760f3 | 1580 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1581 | break; |
e7fee0f3 | 1582 | case DTV_TUNE: |
6b73eeaf | 1583 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1584 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1585 | * ioctl. | |
6b73eeaf | 1586 | */ |
50727719 | 1587 | c->state = tvp->cmd; |
a1bc84c0 | 1588 | dprintk("%s() Finalised property cache\n", __func__); |
d5748f10 | 1589 | |
5bfaadde MCC |
1590 | /* Needed, due to status update */ |
1591 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_in); | |
1592 | ||
1593 | r = dtv_set_frontend(fe); | |
6b73eeaf | 1594 | break; |
363429a0 | 1595 | case DTV_FREQUENCY: |
50727719 | 1596 | c->frequency = tvp->u.data; |
6b73eeaf | 1597 | break; |
363429a0 | 1598 | case DTV_MODULATION: |
50727719 | 1599 | c->modulation = tvp->u.data; |
6b73eeaf | 1600 | break; |
75b7f943 | 1601 | case DTV_BANDWIDTH_HZ: |
50727719 | 1602 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1603 | break; |
363429a0 | 1604 | case DTV_INVERSION: |
50727719 | 1605 | c->inversion = tvp->u.data; |
6b73eeaf | 1606 | break; |
363429a0 | 1607 | case DTV_SYMBOL_RATE: |
50727719 | 1608 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1609 | break; |
363429a0 | 1610 | case DTV_INNER_FEC: |
50727719 | 1611 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1612 | break; |
363429a0 | 1613 | case DTV_PILOT: |
50727719 | 1614 | c->pilot = tvp->u.data; |
6b73eeaf | 1615 | break; |
363429a0 | 1616 | case DTV_ROLLOFF: |
50727719 | 1617 | c->rolloff = tvp->u.data; |
6b73eeaf | 1618 | break; |
363429a0 | 1619 | case DTV_DELIVERY_SYSTEM: |
04be0f76 | 1620 | r = set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1621 | break; |
363429a0 | 1622 | case DTV_VOLTAGE: |
50727719 | 1623 | c->voltage = tvp->u.data; |
16ef8def | 1624 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1625 | (void *)c->voltage); |
13c97bf5 | 1626 | break; |
363429a0 | 1627 | case DTV_TONE: |
50727719 | 1628 | c->sectone = tvp->u.data; |
16ef8def | 1629 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1630 | (void *)c->sectone); |
13c97bf5 | 1631 | break; |
a4de91be | 1632 | case DTV_CODE_RATE_HP: |
50727719 | 1633 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1634 | break; |
1635 | case DTV_CODE_RATE_LP: | |
50727719 | 1636 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1637 | break; |
b87625f0 | 1638 | case DTV_GUARD_INTERVAL: |
50727719 | 1639 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1640 | break; |
1641 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1642 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1643 | break; |
ef526f42 | 1644 | case DTV_HIERARCHY: |
50727719 | 1645 | c->hierarchy = tvp->u.data; |
ef526f42 | 1646 | break; |
b6e760f3 PB |
1647 | |
1648 | /* ISDB-T Support here */ | |
1649 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1650 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1651 | break; |
1652 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1653 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1654 | break; |
1655 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1656 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1657 | break; |
1658 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1659 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1660 | break; |
1661 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1662 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1663 | break; |
e7b7949a | 1664 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1665 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1666 | break; |
b6e760f3 | 1667 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1668 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1669 | break; |
1670 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1671 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1672 | break; |
1673 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1674 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1675 | break; |
1676 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1677 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1678 | break; |
1679 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1680 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1681 | break; |
1682 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1683 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1684 | break; |
1685 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1686 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1687 | break; |
1688 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1689 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1690 | break; |
1691 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1692 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1693 | break; |
1694 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1695 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1696 | break; |
1697 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1698 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1699 | break; |
1700 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1701 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1702 | break; |
98293ef3 | 1703 | case DTV_ISDBS_TS_ID: |
50727719 | 1704 | c->isdbs_ts_id = tvp->u.data; |
94d56ffa AO |
1705 | break; |
1706 | case DTV_DVBT2_PLP_ID: | |
50727719 | 1707 | c->dvbt2_plp_id = tvp->u.data; |
98293ef3 | 1708 | break; |
363429a0 | 1709 | default: |
aff8ab5c | 1710 | return -EINVAL; |
6b73eeaf ST |
1711 | } |
1712 | ||
13c97bf5 | 1713 | return r; |
6b73eeaf ST |
1714 | } |
1715 | ||
16ef8def | 1716 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1717 | unsigned int cmd, void *parg) |
1718 | { | |
1719 | struct dvb_device *dvbdev = file->private_data; | |
1720 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1721 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1722 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
1723 | int err = -EOPNOTSUPP; |
1724 | ||
fb8253ba | 1725 | dprintk("%s (%d)\n", __func__, _IOC_NR(cmd)); |
1da177e4 | 1726 | |
e36309f5 | 1727 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
1728 | return -ENODEV; |
1729 | ||
1730 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1731 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
1732 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) | |
1733 | return -EPERM; | |
1734 | ||
1735 | if (down_interruptible (&fepriv->sem)) | |
1736 | return -ERESTARTSYS; | |
1737 | ||
13c97bf5 | 1738 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1739 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1740 | else { |
50727719 | 1741 | c->state = DTV_UNDEFINED; |
16ef8def | 1742 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1743 | } |
13c97bf5 ST |
1744 | |
1745 | up(&fepriv->sem); | |
1746 | return err; | |
1747 | } | |
1748 | ||
16ef8def | 1749 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1750 | unsigned int cmd, void *parg) |
1751 | { | |
1752 | struct dvb_device *dvbdev = file->private_data; | |
1753 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1754 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1755 | int err = 0; |
e7fee0f3 ST |
1756 | |
1757 | struct dtv_properties *tvps = NULL; | |
1758 | struct dtv_property *tvp = NULL; | |
1759 | int i; | |
13c97bf5 ST |
1760 | |
1761 | dprintk("%s\n", __func__); | |
1762 | ||
6b73eeaf | 1763 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1764 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1765 | |
a1bc84c0 ST |
1766 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1767 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1768 | |
1769 | /* Put an arbitrary limit on the number of messages that can | |
1770 | * be sent at once */ | |
6068f506 | 1771 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1772 | return -EINVAL; |
1773 | ||
6e3924aa | 1774 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1775 | if (!tvp) { |
1776 | err = -ENOMEM; | |
1777 | goto out; | |
6b73eeaf ST |
1778 | } |
1779 | ||
e7fee0f3 ST |
1780 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1781 | err = -EFAULT; | |
1782 | goto out; | |
1783 | } | |
1784 | ||
d48cb402 | 1785 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1786 | err = dtv_property_process_set(fe, tvp + i, file); |
1787 | if (err < 0) | |
1788 | goto out; | |
1789 | (tvp + i)->result = err; | |
d48cb402 | 1790 | } |
e7fee0f3 | 1791 | |
50727719 | 1792 | if (c->state == DTV_TUNE) |
a1bc84c0 | 1793 | dprintk("%s() Property cache is full, tuning\n", __func__); |
bfbf2dae | 1794 | |
363429a0 ST |
1795 | } else |
1796 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1797 | tvps = (struct dtv_properties __user *)parg; |
1798 | ||
a1bc84c0 ST |
1799 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1800 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1801 | |
1802 | /* Put an arbitrary limit on the number of messages that can | |
1803 | * be sent at once */ | |
6068f506 | 1804 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1805 | return -EINVAL; |
1806 | ||
6e3924aa | 1807 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1808 | if (!tvp) { |
1809 | err = -ENOMEM; | |
1810 | goto out; | |
1811 | } | |
1812 | ||
1813 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1814 | err = -EFAULT; | |
1815 | goto out; | |
1816 | } | |
1817 | ||
a689e365 MCC |
1818 | /* |
1819 | * Fills the cache out struct with the cache contents, plus | |
b1e9a650 | 1820 | * the data retrieved from get_frontend. |
a689e365 | 1821 | */ |
7c61d80a | 1822 | dtv_get_frontend(fe, NULL); |
d48cb402 | 1823 | for (i = 0; i < tvps->num; i++) { |
7c61d80a | 1824 | err = dtv_property_process_get(fe, c, tvp + i, file); |
aff8ab5c AO |
1825 | if (err < 0) |
1826 | goto out; | |
1827 | (tvp + i)->result = err; | |
d48cb402 | 1828 | } |
363429a0 ST |
1829 | |
1830 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
1831 | err = -EFAULT; | |
1832 | goto out; | |
1833 | } | |
1834 | ||
363429a0 ST |
1835 | } else |
1836 | err = -EOPNOTSUPP; | |
1837 | ||
e7fee0f3 ST |
1838 | out: |
1839 | kfree(tvp); | |
13c97bf5 ST |
1840 | return err; |
1841 | } | |
1842 | ||
5bfaadde | 1843 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 1844 | { |
9682cea2 MCC |
1845 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1846 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1847 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 1848 | u32 rolloff = 0; |
9682cea2 | 1849 | |
5bfaadde MCC |
1850 | if (dvb_frontend_check_parameters(fe) < 0) |
1851 | return -EINVAL; | |
9682cea2 MCC |
1852 | |
1853 | /* | |
5bfaadde MCC |
1854 | * Initialize output parameters to match the values given by |
1855 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
1856 | * with status = 0, which copies output parameters to userspace. | |
1857 | * | |
1858 | * This is still needed for DVBv5 calls, due to event state update. | |
1859 | */ | |
9682cea2 MCC |
1860 | fepriv->parameters_out = fepriv->parameters_in; |
1861 | ||
5bfaadde MCC |
1862 | /* |
1863 | * Be sure that the bandwidth will be filled for all | |
1864 | * non-satellite systems, as tuners need to know what | |
1865 | * low pass/Nyquist half filter should be applied, in | |
1866 | * order to avoid inter-channel noise. | |
1867 | * | |
1868 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
1869 | * ATSC and DVB-C don't set, so, the core should fill it. | |
1870 | * | |
1871 | * On DVB-C Annex A and C, the bandwidth is a function of | |
1872 | * the roll-off and symbol rate. Annex B defines different | |
1873 | * roll-off factors depending on the modulation. Fortunately, | |
1874 | * Annex B is only used with 6MHz, so there's no need to | |
1875 | * calculate it. | |
1876 | * | |
1877 | * While not officially supported, a side effect of handling it at | |
1878 | * the cache level is that a program could retrieve the bandwidth | |
1879 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
1880 | */ | |
1881 | switch (c->delivery_system) { | |
1882 | case SYS_ATSC: | |
1883 | case SYS_DVBC_ANNEX_B: | |
1884 | c->bandwidth_hz = 6000000; | |
1885 | break; | |
1886 | case SYS_DVBC_ANNEX_A: | |
1887 | rolloff = 115; | |
1888 | break; | |
1889 | case SYS_DVBC_ANNEX_C: | |
1890 | rolloff = 113; | |
1891 | break; | |
1892 | default: | |
1893 | break; | |
1894 | } | |
1895 | if (rolloff) | |
1896 | c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; | |
9682cea2 MCC |
1897 | |
1898 | /* force auto frequency inversion if requested */ | |
5bfaadde | 1899 | if (dvb_force_auto_inversion) |
9682cea2 | 1900 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
1901 | |
1902 | /* | |
1903 | * without hierarchical coding code_rate_LP is irrelevant, | |
1904 | * so we tolerate the otherwise invalid FEC_NONE setting | |
1905 | */ | |
1906 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
1907 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
1908 | |
1909 | /* get frontend-specific tuning settings */ | |
5bfaadde | 1910 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
1911 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
1912 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
1913 | fepriv->max_drift = fetunesettings.max_drift; | |
1914 | fepriv->step_size = fetunesettings.step_size; | |
1915 | } else { | |
1916 | /* default values */ | |
5bfaadde MCC |
1917 | switch (c->delivery_system) { |
1918 | case SYS_DVBC_ANNEX_A: | |
1919 | case SYS_DVBC_ANNEX_C: | |
1920 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
1921 | fepriv->step_size = c->symbol_rate / 16000; |
1922 | fepriv->max_drift = c->symbol_rate / 2000; | |
1923 | break; | |
5bfaadde MCC |
1924 | case SYS_DVBT: |
1925 | case SYS_DVBT2: | |
1926 | case SYS_ISDBT: | |
1927 | case SYS_DMBTH: | |
1928 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
1929 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
1930 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
1931 | break; | |
5bfaadde MCC |
1932 | default: |
1933 | /* | |
1934 | * FIXME: This sounds wrong! if freqency_stepsize is | |
1935 | * defined by the frontend, why not use it??? | |
1936 | */ | |
1937 | fepriv->min_delay = HZ / 20; | |
1938 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
1939 | fepriv->max_drift = 0; |
1940 | break; | |
1941 | } | |
1942 | } | |
1943 | if (dvb_override_tune_delay > 0) | |
1944 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
1945 | ||
1946 | fepriv->state = FESTATE_RETUNE; | |
1947 | ||
1948 | /* Request the search algorithm to search */ | |
1949 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
1950 | ||
1951 | dvb_frontend_clear_events(fe); | |
1952 | dvb_frontend_add_event(fe, 0); | |
1953 | dvb_frontend_wakeup(fe); | |
1954 | fepriv->status = 0; | |
1955 | ||
1956 | return 0; | |
1957 | } | |
1958 | ||
1959 | ||
16ef8def | 1960 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
1961 | unsigned int cmd, void *parg) |
1962 | { | |
1963 | struct dvb_device *dvbdev = file->private_data; | |
1964 | struct dvb_frontend *fe = dvbdev->priv; | |
1965 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 1966 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
9133aee0 MK |
1967 | int cb_err, err = -EOPNOTSUPP; |
1968 | ||
1969 | if (fe->dvb->fe_ioctl_override) { | |
1970 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1971 | DVB_FE_IOCTL_PRE); | |
1972 | if (cb_err < 0) | |
1973 | return cb_err; | |
1974 | if (cb_err > 0) | |
1975 | return 0; | |
1976 | /* fe_ioctl_override returning 0 allows | |
1977 | * dvb-core to continue handling the ioctl */ | |
1978 | } | |
13c97bf5 | 1979 | |
1da177e4 LT |
1980 | switch (cmd) { |
1981 | case FE_GET_INFO: { | |
0c53c70f | 1982 | struct dvb_frontend_info* info = parg; |
dea74869 | 1983 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 1984 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 1985 | |
5bfaadde MCC |
1986 | /* |
1987 | * Associate the 4 delivery systems supported by DVBv3 | |
1988 | * API with their DVBv5 counterpart. For the other standards, | |
1989 | * use the closest type, assuming that it would hopefully | |
1990 | * work with a DVBv3 application. | |
1991 | * It should be noticed that, on multi-frontend devices with | |
1992 | * different types (terrestrial and cable, for example), | |
1993 | * a pure DVBv3 application won't be able to use all delivery | |
1994 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
1995 | * system should be enough for making it work. | |
1996 | */ | |
1997 | switch (dvbv3_type(c->delivery_system)) { | |
1998 | case DVBV3_QPSK: | |
1999 | fe->ops.info.type = FE_QPSK; | |
2000 | break; | |
2001 | case DVBV3_ATSC: | |
2002 | fe->ops.info.type = FE_ATSC; | |
2003 | break; | |
2004 | case DVBV3_QAM: | |
2005 | fe->ops.info.type = FE_QAM; | |
2006 | break; | |
2007 | case DVBV3_OFDM: | |
2008 | fe->ops.info.type = FE_OFDM; | |
2009 | break; | |
2010 | default: | |
2011 | printk(KERN_ERR | |
2012 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
2013 | __func__, c->delivery_system); | |
2014 | fe->ops.info.type = FE_OFDM; | |
2015 | } | |
2016 | ||
1da177e4 LT |
2017 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't |
2018 | * do it, it is done for it. */ | |
2019 | info->caps |= FE_CAN_INVERSION_AUTO; | |
2020 | err = 0; | |
2021 | break; | |
2022 | } | |
2023 | ||
6757ccc5 PB |
2024 | case FE_READ_STATUS: { |
2025 | fe_status_t* status = parg; | |
2026 | ||
25985edc | 2027 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2028 | * that user get signal state from previous tuning */ |
01886255 JG |
2029 | if (fepriv->state == FESTATE_RETUNE || |
2030 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2031 | err=0; |
2032 | *status = 0; | |
2033 | break; | |
2034 | } | |
2035 | ||
dea74869 PB |
2036 | if (fe->ops.read_status) |
2037 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2038 | break; |
6757ccc5 | 2039 | } |
1da177e4 | 2040 | case FE_READ_BER: |
dea74869 PB |
2041 | if (fe->ops.read_ber) |
2042 | err = fe->ops.read_ber(fe, (__u32*) parg); | |
1da177e4 LT |
2043 | break; |
2044 | ||
2045 | case FE_READ_SIGNAL_STRENGTH: | |
dea74869 PB |
2046 | if (fe->ops.read_signal_strength) |
2047 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); | |
1da177e4 LT |
2048 | break; |
2049 | ||
2050 | case FE_READ_SNR: | |
dea74869 PB |
2051 | if (fe->ops.read_snr) |
2052 | err = fe->ops.read_snr(fe, (__u16*) parg); | |
1da177e4 LT |
2053 | break; |
2054 | ||
2055 | case FE_READ_UNCORRECTED_BLOCKS: | |
dea74869 PB |
2056 | if (fe->ops.read_ucblocks) |
2057 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); | |
1da177e4 LT |
2058 | break; |
2059 | ||
2060 | ||
2061 | case FE_DISEQC_RESET_OVERLOAD: | |
dea74869 PB |
2062 | if (fe->ops.diseqc_reset_overload) { |
2063 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2064 | fepriv->state = FESTATE_DISEQC; |
2065 | fepriv->status = 0; | |
2066 | } | |
2067 | break; | |
2068 | ||
2069 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
2070 | if (fe->ops.diseqc_send_master_cmd) { |
2071 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
2072 | fepriv->state = FESTATE_DISEQC; |
2073 | fepriv->status = 0; | |
2074 | } | |
2075 | break; | |
2076 | ||
2077 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
2078 | if (fe->ops.diseqc_send_burst) { |
2079 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
2080 | fepriv->state = FESTATE_DISEQC; |
2081 | fepriv->status = 0; | |
2082 | } | |
2083 | break; | |
2084 | ||
2085 | case FE_SET_TONE: | |
dea74869 PB |
2086 | if (fe->ops.set_tone) { |
2087 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 2088 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
2089 | fepriv->state = FESTATE_DISEQC; |
2090 | fepriv->status = 0; | |
2091 | } | |
2092 | break; | |
2093 | ||
2094 | case FE_SET_VOLTAGE: | |
dea74869 PB |
2095 | if (fe->ops.set_voltage) { |
2096 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 2097 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
2098 | fepriv->state = FESTATE_DISEQC; |
2099 | fepriv->status = 0; | |
2100 | } | |
2101 | break; | |
2102 | ||
2103 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
2104 | if (fe->ops.dishnetwork_send_legacy_command) { |
2105 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
2106 | fepriv->state = FESTATE_DISEQC; |
2107 | fepriv->status = 0; | |
dea74869 | 2108 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2109 | /* |
2110 | * NOTE: This is a fallback condition. Some frontends | |
2111 | * (stv0299 for instance) take longer than 8msec to | |
2112 | * respond to a set_voltage command. Those switches | |
2113 | * need custom routines to switch properly. For all | |
2030c032 | 2114 | * other frontends, the following should work ok. |
83b75b04 N |
2115 | * Dish network legacy switches (as used by Dish500) |
2116 | * are controlled by sending 9-bit command words | |
2117 | * spaced 8msec apart. | |
25985edc | 2118 | * the actual command word is switch/port dependent |
83b75b04 N |
2119 | * so it is up to the userspace application to send |
2120 | * the right command. | |
2121 | * The command must always start with a '0' after | |
2122 | * initialization, so parg is 8 bits and does not | |
2123 | * include the initialization or start bit | |
2124 | */ | |
c6eb8eaf | 2125 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
2126 | struct timeval nexttime; |
2127 | struct timeval tv[10]; | |
2128 | int i; | |
2129 | u8 last = 1; | |
2130 | if (dvb_frontend_debug) | |
c6eb8eaf | 2131 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
2132 | do_gettimeofday(&nexttime); |
2133 | if (dvb_frontend_debug) | |
2134 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); | |
2135 | /* before sending a command, initialize by sending | |
2136 | * a 32ms 18V to the switch | |
2137 | */ | |
dea74869 | 2138 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2139 | dvb_frontend_sleep_until(&nexttime, 32000); |
2140 | ||
2141 | for (i = 0; i < 9; i++) { | |
2142 | if (dvb_frontend_debug) | |
2143 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 2144 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2145 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2146 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2147 | last = (last) ? 0 : 1; |
2148 | } | |
c6eb8eaf | 2149 | swcmd = swcmd >> 1; |
83b75b04 N |
2150 | if (i != 8) |
2151 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2152 | } | |
2153 | if (dvb_frontend_debug) { | |
2154 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 2155 | __func__, fe->dvb->num); |
83b75b04 N |
2156 | for (i = 1; i < 10; i++) |
2157 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
2158 | } | |
2159 | err = 0; | |
2160 | fepriv->state = FESTATE_DISEQC; | |
2161 | fepriv->status = 0; | |
1da177e4 LT |
2162 | } |
2163 | break; | |
2164 | ||
2165 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2166 | if (fe->ops.diseqc_recv_slave_reply) |
2167 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2168 | break; |
2169 | ||
2170 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2171 | if (fe->ops.enable_high_lnb_voltage) |
2172 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2173 | break; |
2174 | ||
9682cea2 | 2175 | case FE_SET_FRONTEND: |
5bfaadde MCC |
2176 | /* Synchronise DVBv5 parameters from DVBv3 */ |
2177 | memcpy (&fepriv->parameters_in, parg, | |
2178 | sizeof (struct dvb_frontend_parameters)); | |
04be0f76 MCC |
2179 | |
2180 | err = set_delivery_system(fe, SYS_UNDEFINED); | |
2181 | if (err) | |
2182 | break; | |
2183 | ||
5bfaadde MCC |
2184 | err = dtv_property_cache_sync(fe, c, &fepriv->parameters_in); |
2185 | if (err) | |
2186 | break; | |
2187 | err = dtv_set_frontend(fe); | |
1da177e4 | 2188 | break; |
1da177e4 LT |
2189 | case FE_GET_EVENT: |
2190 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2191 | break; | |
2192 | ||
2193 | case FE_GET_FRONTEND: | |
7c61d80a | 2194 | err = dtv_get_frontend(fe, &fepriv->parameters_out); |
a689e365 MCC |
2195 | if (err >= 0) |
2196 | memcpy(parg, &fepriv->parameters_out, | |
2197 | sizeof(struct dvb_frontend_parameters)); | |
1da177e4 | 2198 | break; |
36cb557a AQ |
2199 | |
2200 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 2201 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2202 | err = 0; |
36cb557a | 2203 | break; |
1da177e4 LT |
2204 | }; |
2205 | ||
9133aee0 MK |
2206 | if (fe->dvb->fe_ioctl_override) { |
2207 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
2208 | DVB_FE_IOCTL_POST); | |
2209 | if (cb_err < 0) | |
2210 | return cb_err; | |
2211 | } | |
2212 | ||
1da177e4 LT |
2213 | return err; |
2214 | } | |
2215 | ||
6b73eeaf | 2216 | |
1da177e4 LT |
2217 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2218 | { | |
2219 | struct dvb_device *dvbdev = file->private_data; | |
2220 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2221 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2222 | |
46b4f7c1 | 2223 | dprintk ("%s\n", __func__); |
1da177e4 LT |
2224 | |
2225 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2226 | ||
2227 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2228 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2229 | ||
2230 | return 0; | |
2231 | } | |
2232 | ||
2233 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2234 | { | |
2235 | struct dvb_device *dvbdev = file->private_data; | |
2236 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2237 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2238 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2239 | int ret; |
2240 | ||
46b4f7c1 | 2241 | dprintk ("%s\n", __func__); |
e36309f5 MC |
2242 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
2243 | return -ENODEV; | |
1da177e4 | 2244 | |
59b1842d DB |
2245 | if (adapter->mfe_shared) { |
2246 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2247 | |
2248 | if (adapter->mfe_dvbdev == NULL) | |
2249 | adapter->mfe_dvbdev = dvbdev; | |
2250 | ||
2251 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2252 | struct dvb_device | |
2253 | *mfedev = adapter->mfe_dvbdev; | |
2254 | struct dvb_frontend | |
2255 | *mfe = mfedev->priv; | |
2256 | struct dvb_frontend_private | |
2257 | *mfepriv = mfe->frontend_priv; | |
2258 | int mferetry = (dvb_mfe_wait_time << 1); | |
2259 | ||
2260 | mutex_unlock (&adapter->mfe_lock); | |
2261 | while (mferetry-- && (mfedev->users != -1 || | |
2262 | mfepriv->thread != NULL)) { | |
2263 | if(msleep_interruptible(500)) { | |
2264 | if(signal_pending(current)) | |
2265 | return -EINTR; | |
59b1842d | 2266 | } |
6594690b DB |
2267 | } |
2268 | ||
2269 | mutex_lock (&adapter->mfe_lock); | |
2270 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2271 | mfedev = adapter->mfe_dvbdev; |
2272 | mfe = mfedev->priv; | |
2273 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2274 | if (mfedev->users != -1 || |
2275 | mfepriv->thread != NULL) { | |
2276 | mutex_unlock (&adapter->mfe_lock); | |
2277 | return -EBUSY; | |
59b1842d | 2278 | } |
6594690b | 2279 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2280 | } |
59b1842d DB |
2281 | } |
2282 | } | |
2283 | ||
48136e1e OE |
2284 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2285 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2286 | goto err0; |
2d196931 DH |
2287 | |
2288 | /* If we took control of the bus, we need to force | |
2289 | reinitialization. This is because many ts_bus_ctrl() | |
2290 | functions strobe the RESET pin on the demod, and if the | |
2291 | frontend thread already exists then the dvb_init() routine | |
2292 | won't get called (which is what usually does initial | |
2293 | register configuration). */ | |
2294 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2295 | } |
2296 | ||
48136e1e OE |
2297 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2298 | goto err1; | |
04c56d0e | 2299 | |
48136e1e | 2300 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2301 | /* normal tune mode when opened R/W */ |
2302 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2303 | fepriv->tone = -1; | |
2304 | fepriv->voltage = -1; | |
2305 | ||
1da177e4 LT |
2306 | ret = dvb_frontend_start (fe); |
2307 | if (ret) | |
48136e1e | 2308 | goto err2; |
1da177e4 LT |
2309 | |
2310 | /* empty event queue */ | |
2311 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2312 | } | |
2313 | ||
59b1842d DB |
2314 | if (adapter->mfe_shared) |
2315 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2316 | return ret; |
48136e1e OE |
2317 | |
2318 | err2: | |
2319 | dvb_generic_release(inode, file); | |
2320 | err1: | |
2321 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2322 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2323 | err0: |
2324 | if (adapter->mfe_shared) | |
2325 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2326 | return ret; |
1da177e4 LT |
2327 | } |
2328 | ||
2329 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2330 | { | |
2331 | struct dvb_device *dvbdev = file->private_data; | |
2332 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2333 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2334 | int ret; |
1da177e4 | 2335 | |
46b4f7c1 | 2336 | dprintk ("%s\n", __func__); |
1da177e4 | 2337 | |
b9d5efcc | 2338 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2339 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2340 | mb(); |
2341 | } | |
1da177e4 | 2342 | |
ca5be9cd MR |
2343 | ret = dvb_generic_release (inode, file); |
2344 | ||
48136e1e | 2345 | if (dvbdev->users == -1) { |
b9d5efcc | 2346 | wake_up(&fepriv->wait_queue); |
e36309f5 | 2347 | if (fepriv->exit != DVB_FE_NO_EXIT) { |
48136e1e OE |
2348 | fops_put(file->f_op); |
2349 | file->f_op = NULL; | |
2350 | wake_up(&dvbdev->wait_queue); | |
2351 | } | |
2352 | if (fe->ops.ts_bus_ctrl) | |
2353 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2354 | } |
48136e1e | 2355 | |
ca5be9cd | 2356 | return ret; |
1da177e4 LT |
2357 | } |
2358 | ||
784e29d2 | 2359 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2360 | .owner = THIS_MODULE, |
16ef8def | 2361 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2362 | .poll = dvb_frontend_poll, |
2363 | .open = dvb_frontend_open, | |
6038f373 AB |
2364 | .release = dvb_frontend_release, |
2365 | .llseek = noop_llseek, | |
1da177e4 LT |
2366 | }; |
2367 | ||
2368 | int dvb_register_frontend(struct dvb_adapter* dvb, | |
2369 | struct dvb_frontend* fe) | |
2370 | { | |
2371 | struct dvb_frontend_private *fepriv; | |
2372 | static const struct dvb_device dvbdev_template = { | |
2373 | .users = ~0, | |
2374 | .writers = 1, | |
2375 | .readers = (~0)-1, | |
2376 | .fops = &dvb_frontend_fops, | |
2377 | .kernel_ioctl = dvb_frontend_ioctl | |
2378 | }; | |
2379 | ||
46b4f7c1 | 2380 | dprintk ("%s\n", __func__); |
1da177e4 | 2381 | |
3593cab5 | 2382 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2383 | return -ERESTARTSYS; |
2384 | ||
7408187d | 2385 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2386 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2387 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2388 | return -ENOMEM; |
2389 | } | |
0c53c70f | 2390 | fepriv = fe->frontend_priv; |
1da177e4 | 2391 | |
a0a4714c | 2392 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2393 | init_waitqueue_head (&fepriv->wait_queue); |
2394 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2395 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2396 | fe->dvb = dvb; |
2397 | fepriv->inversion = INVERSION_OFF; | |
2398 | ||
363c35fc | 2399 | printk ("DVB: registering adapter %i frontend %i (%s)...\n", |
1da177e4 | 2400 | fe->dvb->num, |
363c35fc | 2401 | fe->id, |
dea74869 | 2402 | fe->ops.info.name); |
1da177e4 LT |
2403 | |
2404 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2405 | fe, DVB_DEVICE_FRONTEND); | |
2406 | ||
5bfaadde MCC |
2407 | /* |
2408 | * Initialize the cache to the proper values according with the | |
2409 | * first supported delivery system (ops->delsys[0]) | |
2410 | */ | |
2411 | dvb_frontend_clear_cache(fe); | |
2412 | ||
3593cab5 | 2413 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2414 | return 0; |
2415 | } | |
2416 | EXPORT_SYMBOL(dvb_register_frontend); | |
2417 | ||
2418 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2419 | { | |
0c53c70f | 2420 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
46b4f7c1 | 2421 | dprintk ("%s\n", __func__); |
1da177e4 | 2422 | |
57861b43 | 2423 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2424 | dvb_frontend_stop (fe); |
57861b43 MR |
2425 | mutex_unlock(&frontend_mutex); |
2426 | ||
2427 | if (fepriv->dvbdev->users < -1) | |
2428 | wait_event(fepriv->dvbdev->wait_queue, | |
2429 | fepriv->dvbdev->users==-1); | |
2430 | ||
3593cab5 | 2431 | mutex_lock(&frontend_mutex); |
1da177e4 | 2432 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2433 | |
1da177e4 LT |
2434 | /* fe is invalid now */ |
2435 | kfree(fepriv); | |
3593cab5 | 2436 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2437 | return 0; |
2438 | } | |
2439 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2440 | |
149ef72d | 2441 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2442 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2443 | { | |
2444 | void *ptr; | |
2445 | ||
2446 | if (fe->ops.release_sec) { | |
2447 | fe->ops.release_sec(fe); | |
2448 | symbol_put_addr(fe->ops.release_sec); | |
2449 | } | |
2450 | if (fe->ops.tuner_ops.release) { | |
2451 | fe->ops.tuner_ops.release(fe); | |
2452 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2453 | } | |
2426a27e MK |
2454 | if (fe->ops.analog_ops.release) { |
2455 | fe->ops.analog_ops.release(fe); | |
2456 | symbol_put_addr(fe->ops.analog_ops.release); | |
2457 | } | |
f52a838b AQ |
2458 | ptr = (void*)fe->ops.release; |
2459 | if (ptr) { | |
2460 | fe->ops.release(fe); | |
2461 | symbol_put_addr(ptr); | |
2462 | } | |
2463 | } | |
2464 | #else | |
2465 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2466 | { | |
2467 | if (fe->ops.release_sec) | |
2468 | fe->ops.release_sec(fe); | |
2469 | if (fe->ops.tuner_ops.release) | |
2470 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2471 | if (fe->ops.analog_ops.release) |
2472 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2473 | if (fe->ops.release) |
2474 | fe->ops.release(fe); | |
2475 | } | |
2476 | #endif | |
2477 | EXPORT_SYMBOL(dvb_frontend_detach); |