Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * dvb_frontend.c: DVB frontend tuning interface/thread | |
3 | * | |
4 | * | |
5 | * Copyright (C) 1999-2001 Ralph Metzler | |
6 | * Marcus Metzler | |
7 | * Holger Waechtler | |
8 | * for convergence integrated media GmbH | |
9 | * | |
10 | * Copyright (C) 2004 Andrew de Quincey (tuning thread cleanup) | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License | |
14 | * as published by the Free Software Foundation; either version 2 | |
15 | * of the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | |
26 | */ | |
27 | ||
8de8594a MCC |
28 | /* Enables DVBv3 compatibility bits at the headers */ |
29 | #define __DVB_CORE__ | |
30 | ||
1da177e4 LT |
31 | #include <linux/string.h> |
32 | #include <linux/kernel.h> | |
33 | #include <linux/sched.h> | |
34 | #include <linux/wait.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/poll.h> | |
4c4cb1b1 | 37 | #include <linux/semaphore.h> |
1da177e4 | 38 | #include <linux/module.h> |
1da177e4 | 39 | #include <linux/list.h> |
7dfb7103 | 40 | #include <linux/freezer.h> |
cc89c229 | 41 | #include <linux/jiffies.h> |
8eec1429 | 42 | #include <linux/kthread.h> |
1da177e4 | 43 | #include <asm/processor.h> |
1da177e4 LT |
44 | |
45 | #include "dvb_frontend.h" | |
46 | #include "dvbdev.h" | |
eacf8d8d | 47 | #include <linux/dvb/version.h> |
1da177e4 LT |
48 | |
49 | static int dvb_frontend_debug; | |
849be2cd | 50 | static int dvb_shutdown_timeout; |
1da177e4 LT |
51 | static int dvb_force_auto_inversion; |
52 | static int dvb_override_tune_delay; | |
53 | static int dvb_powerdown_on_sleep = 1; | |
59b1842d | 54 | static int dvb_mfe_wait_time = 5; |
1da177e4 LT |
55 | |
56 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); | |
f4f009a7 | 57 | MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off)."); |
6baad3f0 | 58 | module_param(dvb_shutdown_timeout, int, 0644); |
1da177e4 | 59 | MODULE_PARM_DESC(dvb_shutdown_timeout, "wait <shutdown_timeout> seconds after close() before suspending hardware"); |
6baad3f0 | 60 | module_param(dvb_force_auto_inversion, int, 0644); |
1da177e4 | 61 | MODULE_PARM_DESC(dvb_force_auto_inversion, "0: normal (default), 1: INVERSION_AUTO forced always"); |
6baad3f0 | 62 | module_param(dvb_override_tune_delay, int, 0644); |
1da177e4 | 63 | MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt"); |
6baad3f0 | 64 | module_param(dvb_powerdown_on_sleep, int, 0644); |
a8558577 | 65 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
59b1842d DB |
66 | module_param(dvb_mfe_wait_time, int, 0644); |
67 | MODULE_PARM_DESC(dvb_mfe_wait_time, "Wait up to <mfe_wait_time> seconds on open() for multi-frontend to become available (default:5 seconds)"); | |
1da177e4 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 | 101 | #define DVB_FE_NO_EXIT 0 |
102 | #define DVB_FE_NORMAL_EXIT 1 | |
103 | #define DVB_FE_DEVICE_REMOVED 2 | |
104 | ||
3593cab5 | 105 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
106 | |
107 | struct dvb_frontend_private { | |
108 | ||
36cb557a | 109 | /* thread/frontend values */ |
1da177e4 | 110 | struct dvb_device *dvbdev; |
a5959dbe | 111 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
112 | struct dvb_fe_events events; |
113 | struct semaphore sem; | |
114 | struct list_head list_head; | |
115 | wait_queue_head_t wait_queue; | |
8eec1429 | 116 | struct task_struct *thread; |
1da177e4 | 117 | unsigned long release_jiffies; |
36cb557a AQ |
118 | unsigned int exit; |
119 | unsigned int wakeup; | |
1da177e4 | 120 | fe_status_t status; |
400b7083 | 121 | unsigned long tune_mode_flags; |
36cb557a | 122 | unsigned int delay; |
86f40cc3 | 123 | unsigned int reinitialise; |
64454016 AQ |
124 | int tone; |
125 | int voltage; | |
36cb557a AQ |
126 | |
127 | /* swzigzag values */ | |
128 | unsigned int state; | |
129 | unsigned int bending; | |
130 | int lnb_drift; | |
131 | unsigned int inversion; | |
132 | unsigned int auto_step; | |
133 | unsigned int auto_sub_step; | |
134 | unsigned int started_auto_step; | |
135 | unsigned int min_delay; | |
136 | unsigned int max_drift; | |
137 | unsigned int step_size; | |
138 | int quality; | |
139 | unsigned int check_wrapped; | |
c59e7870 | 140 | enum dvbfe_search algo_status; |
1da177e4 LT |
141 | }; |
142 | ||
86f40cc3 | 143 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 144 | static int dtv_get_frontend(struct dvb_frontend *fe, |
a689e365 MCC |
145 | struct dvb_frontend_parameters *p_out); |
146 | ||
147 | static bool has_get_frontend(struct dvb_frontend *fe) | |
148 | { | |
b1e9a650 | 149 | return fe->ops.get_frontend; |
a689e365 | 150 | } |
1da177e4 | 151 | |
5bfaadde MCC |
152 | /* |
153 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
154 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
155 | * otherwise, a DVBv3 call will fail. | |
156 | */ | |
157 | enum dvbv3_emulation_type { | |
158 | DVBV3_UNKNOWN, | |
159 | DVBV3_QPSK, | |
160 | DVBV3_QAM, | |
161 | DVBV3_OFDM, | |
162 | DVBV3_ATSC, | |
163 | }; | |
164 | ||
165 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
166 | { | |
167 | switch (delivery_system) { | |
168 | case SYS_DVBC_ANNEX_A: | |
169 | case SYS_DVBC_ANNEX_C: | |
170 | return DVBV3_QAM; | |
171 | case SYS_DVBS: | |
172 | case SYS_DVBS2: | |
173 | case SYS_TURBO: | |
174 | case SYS_ISDBS: | |
175 | case SYS_DSS: | |
176 | return DVBV3_QPSK; | |
177 | case SYS_DVBT: | |
178 | case SYS_DVBT2: | |
179 | case SYS_ISDBT: | |
180 | case SYS_DMBTH: | |
181 | return DVBV3_OFDM; | |
182 | case SYS_ATSC: | |
183 | case SYS_DVBC_ANNEX_B: | |
184 | return DVBV3_ATSC; | |
185 | case SYS_UNDEFINED: | |
186 | case SYS_ISDBC: | |
187 | case SYS_DVBH: | |
188 | case SYS_DAB: | |
189 | case SYS_ATSCMH: | |
190 | default: | |
191 | /* | |
192 | * Doesn't know how to emulate those types and/or | |
193 | * there's no frontend driver from this type yet | |
194 | * with some emulation code, so, we're not sure yet how | |
195 | * to handle them, or they're not compatible with a DVBv3 call. | |
196 | */ | |
197 | return DVBV3_UNKNOWN; | |
198 | } | |
199 | } | |
200 | ||
1da177e4 LT |
201 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
202 | { | |
0c53c70f | 203 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
204 | struct dvb_fe_events *events = &fepriv->events; |
205 | struct dvb_frontend_event *e; | |
206 | int wp; | |
207 | ||
46b4f7c1 | 208 | dprintk ("%s\n", __func__); |
1da177e4 | 209 | |
a689e365 | 210 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
7c61d80a | 211 | dtv_get_frontend(fe, &fepriv->parameters_out); |
1da177e4 | 212 | |
77b1e2fb | 213 | mutex_lock(&events->mtx); |
1da177e4 | 214 | |
77b1e2fb | 215 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
216 | if (wp == events->eventr) { |
217 | events->overflow = 1; | |
218 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
219 | } | |
220 | ||
221 | e = &events->events[events->eventw]; | |
77b1e2fb | 222 | e->status = status; |
a5959dbe | 223 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
224 | |
225 | events->eventw = wp; | |
226 | ||
03b76123 | 227 | mutex_unlock(&events->mtx); |
1da177e4 | 228 | |
1da177e4 LT |
229 | wake_up_interruptible (&events->wait_queue); |
230 | } | |
231 | ||
232 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
233 | struct dvb_frontend_event *event, int flags) | |
234 | { | |
0c53c70f | 235 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
236 | struct dvb_fe_events *events = &fepriv->events; |
237 | ||
46b4f7c1 | 238 | dprintk ("%s\n", __func__); |
1da177e4 LT |
239 | |
240 | if (events->overflow) { | |
241 | events->overflow = 0; | |
242 | return -EOVERFLOW; | |
243 | } | |
244 | ||
245 | if (events->eventw == events->eventr) { | |
246 | int ret; | |
247 | ||
248 | if (flags & O_NONBLOCK) | |
249 | return -EWOULDBLOCK; | |
250 | ||
251 | up(&fepriv->sem); | |
252 | ||
253 | ret = wait_event_interruptible (events->wait_queue, | |
254 | events->eventw != events->eventr); | |
255 | ||
256 | if (down_interruptible (&fepriv->sem)) | |
257 | return -ERESTARTSYS; | |
258 | ||
259 | if (ret < 0) | |
260 | return ret; | |
261 | } | |
262 | ||
77b1e2fb AO |
263 | mutex_lock(&events->mtx); |
264 | *event = events->events[events->eventr]; | |
1da177e4 | 265 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 266 | mutex_unlock(&events->mtx); |
1da177e4 LT |
267 | |
268 | return 0; | |
269 | } | |
270 | ||
20640bea AO |
271 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
272 | { | |
273 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
274 | struct dvb_fe_events *events = &fepriv->events; | |
275 | ||
276 | mutex_lock(&events->mtx); | |
277 | events->eventr = events->eventw; | |
278 | mutex_unlock(&events->mtx); | |
279 | } | |
280 | ||
1da177e4 LT |
281 | static void dvb_frontend_init(struct dvb_frontend *fe) |
282 | { | |
363c35fc | 283 | dprintk ("DVB: initialising adapter %i frontend %i (%s)...\n", |
1da177e4 | 284 | fe->dvb->num, |
363c35fc | 285 | fe->id, |
dea74869 PB |
286 | fe->ops.info.name); |
287 | ||
288 | if (fe->ops.init) | |
289 | fe->ops.init(fe); | |
290 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
291 | if (fe->ops.i2c_gate_ctrl) |
292 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
293 | fe->ops.tuner_ops.init(fe); |
294 | if (fe->ops.i2c_gate_ctrl) | |
295 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 296 | } |
1da177e4 LT |
297 | } |
298 | ||
86f40cc3 AQ |
299 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
300 | { | |
301 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
302 | ||
303 | fepriv->reinitialise = 1; | |
304 | dvb_frontend_wakeup(fe); | |
305 | } | |
306 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
307 | ||
36cb557a | 308 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 309 | { |
36cb557a | 310 | int q2; |
1da177e4 | 311 | |
46b4f7c1 | 312 | dprintk ("%s\n", __func__); |
1da177e4 | 313 | |
36cb557a AQ |
314 | if (locked) |
315 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
316 | else | |
317 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 318 | |
36cb557a AQ |
319 | q2 = fepriv->quality - 128; |
320 | q2 *= q2; | |
1da177e4 | 321 | |
36cb557a | 322 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
323 | } |
324 | ||
325 | /** | |
326 | * Performs automatic twiddling of frontend parameters. | |
327 | * | |
328 | * @param fe The frontend concerned. | |
329 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
330 | * @returns Number of complete iterations that have been performed. | |
331 | */ | |
36cb557a | 332 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
333 | { |
334 | int autoinversion; | |
335 | int ready = 0; | |
01886255 | 336 | int fe_set_err = 0; |
0c53c70f | 337 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
338 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
339 | int original_inversion = c->inversion; | |
340 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
341 | |
342 | /* are we using autoinversion? */ | |
dea74869 | 343 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 344 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
345 | |
346 | /* setup parameters correctly */ | |
347 | while(!ready) { | |
348 | /* calculate the lnb_drift */ | |
349 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
350 | ||
351 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
352 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
353 | fepriv->auto_step = 0; | |
354 | fepriv->auto_sub_step = 0; | |
355 | fepriv->lnb_drift = 0; | |
356 | } | |
357 | ||
358 | /* perform inversion and +/- zigzag */ | |
359 | switch(fepriv->auto_sub_step) { | |
360 | case 0: | |
361 | /* try with the current inversion and current drift setting */ | |
362 | ready = 1; | |
363 | break; | |
364 | ||
365 | case 1: | |
366 | if (!autoinversion) break; | |
367 | ||
368 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
369 | ready = 1; | |
370 | break; | |
371 | ||
372 | case 2: | |
373 | if (fepriv->lnb_drift == 0) break; | |
374 | ||
375 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
376 | ready = 1; | |
377 | break; | |
378 | ||
379 | case 3: | |
380 | if (fepriv->lnb_drift == 0) break; | |
381 | if (!autoinversion) break; | |
382 | ||
383 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
384 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
385 | ready = 1; | |
386 | break; | |
387 | ||
388 | default: | |
389 | fepriv->auto_step++; | |
390 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
391 | break; | |
392 | } | |
393 | ||
394 | if (!ready) fepriv->auto_sub_step++; | |
395 | } | |
396 | ||
397 | /* if this attempt would hit where we started, indicate a complete | |
398 | * iteration has occurred */ | |
399 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
400 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
401 | return 1; | |
402 | } | |
403 | ||
404 | dprintk("%s: drift:%i inversion:%i auto_step:%i " | |
405 | "auto_sub_step:%i started_auto_step:%i\n", | |
46b4f7c1 | 406 | __func__, fepriv->lnb_drift, fepriv->inversion, |
1da177e4 LT |
407 | fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step); |
408 | ||
409 | /* set the frontend itself */ | |
ac3852c4 | 410 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 411 | if (autoinversion) |
ac3852c4 MCC |
412 | c->inversion = fepriv->inversion; |
413 | tmp = *c; | |
dea74869 | 414 | if (fe->ops.set_frontend) |
bc9cd273 | 415 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 416 | *c = tmp; |
01886255 JG |
417 | if (fe_set_err < 0) { |
418 | fepriv->state = FESTATE_ERROR; | |
419 | return fe_set_err; | |
420 | } | |
1da177e4 | 421 | |
ac3852c4 MCC |
422 | c->frequency = original_frequency; |
423 | c->inversion = original_inversion; | |
1da177e4 LT |
424 | |
425 | fepriv->auto_sub_step++; | |
426 | return 0; | |
427 | } | |
428 | ||
36cb557a AQ |
429 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
430 | { | |
30d9464c | 431 | fe_status_t s = 0; |
01886255 | 432 | int retval = 0; |
36cb557a | 433 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 434 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
435 | |
436 | /* if we've got no parameters, just keep idling */ | |
437 | if (fepriv->state & FESTATE_IDLE) { | |
438 | fepriv->delay = 3*HZ; | |
439 | fepriv->quality = 0; | |
440 | return; | |
441 | } | |
442 | ||
443 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
444 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
445 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 446 | tmp = *c; |
dea74869 | 447 | if (fe->ops.set_frontend) |
bc9cd273 | 448 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 449 | *c = tmp; |
01886255 JG |
450 | if (retval < 0) |
451 | fepriv->state = FESTATE_ERROR; | |
452 | else | |
453 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
454 | } |
455 | fepriv->delay = 3*HZ; | |
456 | fepriv->quality = 0; | |
457 | return; | |
458 | } | |
459 | ||
460 | /* get the frontend status */ | |
461 | if (fepriv->state & FESTATE_RETUNE) { | |
462 | s = 0; | |
463 | } else { | |
dea74869 PB |
464 | if (fe->ops.read_status) |
465 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
466 | if (s != fepriv->status) { |
467 | dvb_frontend_add_event(fe, s); | |
468 | fepriv->status = s; | |
469 | } | |
470 | } | |
471 | ||
472 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
473 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
474 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
475 | fepriv->state = FESTATE_TUNED; | |
476 | ||
477 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 478 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
479 | (c->inversion == INVERSION_AUTO)) { |
480 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
481 | } |
482 | return; | |
483 | } | |
484 | ||
485 | /* if we are tuned already, check we're still locked */ | |
486 | if (fepriv->state & FESTATE_TUNED) { | |
487 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
488 | ||
489 | /* we're tuned, and the lock is still good... */ | |
490 | if (s & FE_HAS_LOCK) { | |
491 | return; | |
492 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
493 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
494 | fepriv->started_auto_step = fepriv->auto_step; | |
495 | fepriv->check_wrapped = 0; | |
496 | } | |
497 | } | |
498 | ||
499 | /* don't actually do anything if we're in the LOSTLOCK state, | |
500 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
501 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 502 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
503 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
504 | return; | |
505 | } | |
506 | ||
507 | /* don't do anything if we're in the DISEQC state, since this | |
508 | * might be someone with a motorized dish controlled by DISEQC. | |
509 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
510 | if (fepriv->state & FESTATE_DISEQC) { | |
511 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
512 | return; | |
513 | } | |
514 | ||
515 | /* if we're in the RETUNE state, set everything up for a brand | |
516 | * new scan, keeping the current inversion setting, as the next | |
517 | * tune is _very_ likely to require the same */ | |
518 | if (fepriv->state & FESTATE_RETUNE) { | |
519 | fepriv->lnb_drift = 0; | |
520 | fepriv->auto_step = 0; | |
521 | fepriv->auto_sub_step = 0; | |
522 | fepriv->started_auto_step = 0; | |
523 | fepriv->check_wrapped = 0; | |
524 | } | |
525 | ||
526 | /* fast zigzag. */ | |
527 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
528 | fepriv->delay = fepriv->min_delay; | |
529 | ||
2030c032 | 530 | /* perform a tune */ |
01886255 JG |
531 | retval = dvb_frontend_swzigzag_autotune(fe, |
532 | fepriv->check_wrapped); | |
533 | if (retval < 0) { | |
534 | return; | |
535 | } else if (retval) { | |
36cb557a AQ |
536 | /* OK, if we've run out of trials at the fast speed. |
537 | * Drop back to slow for the _next_ attempt */ | |
538 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
539 | fepriv->started_auto_step = fepriv->auto_step; | |
540 | return; | |
541 | } | |
542 | fepriv->check_wrapped = 1; | |
543 | ||
544 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
545 | * This ensures we cannot return from an | |
546 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
547 | * occurs */ | |
548 | if (fepriv->state & FESTATE_RETUNE) { | |
549 | fepriv->state = FESTATE_TUNING_FAST; | |
550 | } | |
551 | } | |
552 | ||
553 | /* slow zigzag */ | |
554 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
555 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
556 | ||
557 | /* Note: don't bother checking for wrapping; we stay in this | |
558 | * state until we get a lock */ | |
559 | dvb_frontend_swzigzag_autotune(fe, 0); | |
560 | } | |
561 | } | |
562 | ||
1da177e4 LT |
563 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
564 | { | |
0c53c70f | 565 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 566 | |
e36309f5 | 567 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
568 | return 1; |
569 | ||
570 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 571 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 572 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
573 | return 1; |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
578 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
579 | { | |
0c53c70f | 580 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
581 | |
582 | if (fepriv->wakeup) { | |
583 | fepriv->wakeup = 0; | |
584 | return 1; | |
585 | } | |
586 | return dvb_frontend_is_exiting(fe); | |
587 | } | |
588 | ||
589 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
590 | { | |
0c53c70f | 591 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
592 | |
593 | fepriv->wakeup = 1; | |
594 | wake_up_interruptible(&fepriv->wait_queue); | |
595 | } | |
596 | ||
1da177e4 LT |
597 | static int dvb_frontend_thread(void *data) |
598 | { | |
0c53c70f JS |
599 | struct dvb_frontend *fe = data; |
600 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 601 | fe_status_t s; |
c59e7870 MA |
602 | enum dvbfe_algo algo; |
603 | ||
7e072221 | 604 | bool re_tune = false; |
1da177e4 | 605 | |
46b4f7c1 | 606 | dprintk("%s\n", __func__); |
1da177e4 | 607 | |
36cb557a AQ |
608 | fepriv->check_wrapped = 0; |
609 | fepriv->quality = 0; | |
610 | fepriv->delay = 3*HZ; | |
1da177e4 | 611 | fepriv->status = 0; |
1da177e4 | 612 | fepriv->wakeup = 0; |
04c56d0e AQ |
613 | fepriv->reinitialise = 0; |
614 | ||
615 | dvb_frontend_init(fe); | |
1da177e4 | 616 | |
83144186 | 617 | set_freezable(); |
1da177e4 LT |
618 | while (1) { |
619 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 620 | restart: |
94238e9b | 621 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
622 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
623 | || freezing(current), | |
8eec1429 HP |
624 | fepriv->delay); |
625 | ||
626 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 627 | /* got signal or quitting */ |
e36309f5 | 628 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
629 | break; |
630 | } | |
631 | ||
8eec1429 | 632 | if (try_to_freeze()) |
6591691b | 633 | goto restart; |
1da177e4 LT |
634 | |
635 | if (down_interruptible(&fepriv->sem)) | |
636 | break; | |
637 | ||
86f40cc3 AQ |
638 | if (fepriv->reinitialise) { |
639 | dvb_frontend_init(fe); | |
42f4e774 | 640 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 641 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 642 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 643 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
644 | fepriv->reinitialise = 0; |
645 | } | |
646 | ||
36cb557a | 647 | /* do an iteration of the tuning loop */ |
d772bd03 | 648 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
649 | algo = fe->ops.get_frontend_algo(fe); |
650 | switch (algo) { | |
651 | case DVBFE_ALGO_HW: | |
652 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); | |
c59e7870 | 653 | |
d772bd03 | 654 | if (fepriv->state & FESTATE_RETUNE) { |
c59e7870 | 655 | dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 656 | re_tune = true; |
d772bd03 MA |
657 | fepriv->state = FESTATE_TUNED; |
658 | } | |
659 | ||
c59e7870 | 660 | if (fe->ops.tune) |
7e072221 | 661 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 662 | |
2fac9a0f | 663 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
c59e7870 | 664 | dprintk("%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
665 | dvb_frontend_add_event(fe, s); |
666 | fepriv->status = s; | |
667 | } | |
c59e7870 MA |
668 | break; |
669 | case DVBFE_ALGO_SW: | |
670 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); | |
70d90635 | 671 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
672 | break; |
673 | case DVBFE_ALGO_CUSTOM: | |
c59e7870 MA |
674 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
675 | if (fepriv->state & FESTATE_RETUNE) { | |
676 | dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__); | |
677 | fepriv->state = FESTATE_TUNED; | |
678 | } | |
679 | /* Case where we are going to search for a carrier | |
680 | * User asked us to retune again for some reason, possibly | |
681 | * requesting a search with a new set of parameters | |
682 | */ | |
683 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 684 | if (fe->ops.search) { |
41da5320 | 685 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
686 | /* We did do a search as was requested, the flags are |
687 | * now unset as well and has the flags wrt to search. | |
688 | */ | |
7bcbdf38 AJ |
689 | } else { |
690 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
691 | } | |
c59e7870 MA |
692 | } |
693 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 694 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
695 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
696 | fepriv->delay = HZ / 2; | |
697 | } | |
698 | fe->ops.read_status(fe, &s); | |
699 | if (s != fepriv->status) { | |
700 | dvb_frontend_add_event(fe, s); /* update event list */ | |
701 | fepriv->status = s; | |
702 | if (!(s & FE_HAS_LOCK)) { | |
703 | fepriv->delay = HZ / 10; | |
704 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
705 | } else { | |
706 | fepriv->delay = 60 * HZ; | |
707 | } | |
c59e7870 MA |
708 | } |
709 | break; | |
710 | default: | |
711 | dprintk("%s: UNDEFINED ALGO !\n", __func__); | |
712 | break; | |
713 | } | |
714 | } else { | |
4a4edcca | 715 | dvb_frontend_swzigzag(fe); |
c59e7870 | 716 | } |
1da177e4 LT |
717 | } |
718 | ||
608f62d6 OE |
719 | if (dvb_powerdown_on_sleep) { |
720 | if (fe->ops.set_voltage) | |
721 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 722 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
723 | if (fe->ops.i2c_gate_ctrl) |
724 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
725 | fe->ops.tuner_ops.sleep(fe); |
726 | if (fe->ops.i2c_gate_ctrl) | |
727 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 728 | } |
dea74869 PB |
729 | if (fe->ops.sleep) |
730 | fe->ops.sleep(fe); | |
1da177e4 LT |
731 | } |
732 | ||
8eec1429 | 733 | fepriv->thread = NULL; |
e36309f5 | 734 | if (kthread_should_stop()) |
735 | fepriv->exit = DVB_FE_DEVICE_REMOVED; | |
736 | else | |
737 | fepriv->exit = DVB_FE_NO_EXIT; | |
1da177e4 LT |
738 | mb(); |
739 | ||
740 | dvb_frontend_wakeup(fe); | |
741 | return 0; | |
742 | } | |
743 | ||
744 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
745 | { | |
0c53c70f | 746 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 747 | |
46b4f7c1 | 748 | dprintk ("%s\n", __func__); |
1da177e4 | 749 | |
e36309f5 | 750 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
751 | mb(); |
752 | ||
8eec1429 | 753 | if (!fepriv->thread) |
1da177e4 LT |
754 | return; |
755 | ||
8eec1429 | 756 | kthread_stop(fepriv->thread); |
ca5be9cd | 757 | |
a0a4714c | 758 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
759 | fepriv->state = FESTATE_IDLE; |
760 | ||
761 | /* paranoia check in case a signal arrived */ | |
8eec1429 HP |
762 | if (fepriv->thread) |
763 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", | |
764 | fepriv->thread); | |
1da177e4 LT |
765 | } |
766 | ||
83b75b04 N |
767 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
768 | { | |
769 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
770 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
771 | curtime.tv_usec - lasttime.tv_usec); | |
772 | } | |
773 | EXPORT_SYMBOL(timeval_usec_diff); | |
774 | ||
775 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
776 | { | |
777 | curtime->tv_usec += add_usec; | |
778 | if (curtime->tv_usec >= 1000000) { | |
779 | curtime->tv_usec -= 1000000; | |
780 | curtime->tv_sec++; | |
781 | } | |
782 | } | |
783 | ||
784 | /* | |
785 | * Sleep until gettimeofday() > waketime + add_usec | |
786 | * This needs to be as precise as possible, but as the delay is | |
787 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
788 | * followed by usleep (normally a busy-wait loop) for the remainder | |
789 | */ | |
790 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
791 | { | |
792 | struct timeval lasttime; | |
793 | s32 delta, newdelta; | |
794 | ||
795 | timeval_usec_add(waketime, add_usec); | |
796 | ||
797 | do_gettimeofday(&lasttime); | |
798 | delta = timeval_usec_diff(lasttime, *waketime); | |
799 | if (delta > 2500) { | |
800 | msleep((delta - 1500) / 1000); | |
801 | do_gettimeofday(&lasttime); | |
802 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
803 | delta = (newdelta > delta) ? 0 : newdelta; | |
804 | } | |
805 | if (delta > 0) | |
806 | udelay(delta); | |
807 | } | |
808 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
809 | ||
1da177e4 LT |
810 | static int dvb_frontend_start(struct dvb_frontend *fe) |
811 | { | |
812 | int ret; | |
0c53c70f | 813 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 814 | struct task_struct *fe_thread; |
1da177e4 | 815 | |
46b4f7c1 | 816 | dprintk ("%s\n", __func__); |
1da177e4 | 817 | |
8eec1429 | 818 | if (fepriv->thread) { |
e36309f5 | 819 | if (fepriv->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
820 | return 0; |
821 | else | |
822 | dvb_frontend_stop (fe); | |
823 | } | |
824 | ||
825 | if (signal_pending(current)) | |
826 | return -EINTR; | |
827 | if (down_interruptible (&fepriv->sem)) | |
828 | return -EINTR; | |
829 | ||
830 | fepriv->state = FESTATE_IDLE; | |
e36309f5 | 831 | fepriv->exit = DVB_FE_NO_EXIT; |
8eec1429 | 832 | fepriv->thread = NULL; |
1da177e4 LT |
833 | mb(); |
834 | ||
8eec1429 | 835 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 836 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
837 | if (IS_ERR(fe_thread)) { |
838 | ret = PTR_ERR(fe_thread); | |
839 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); | |
1da177e4 LT |
840 | up(&fepriv->sem); |
841 | return ret; | |
842 | } | |
8eec1429 | 843 | fepriv->thread = fe_thread; |
1da177e4 LT |
844 | return 0; |
845 | } | |
846 | ||
2030c032 | 847 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
848 | u32 *freq_min, u32 *freq_max) |
849 | { | |
850 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
851 | ||
852 | if (fe->ops.info.frequency_max == 0) | |
853 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
854 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
855 | *freq_max = fe->ops.info.frequency_max; | |
856 | else | |
857 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
858 | ||
859 | if (*freq_min == 0 || *freq_max == 0) | |
363c35fc ST |
860 | printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
861 | fe->dvb->num,fe->id); | |
c471b331 OE |
862 | } |
863 | ||
5bfaadde | 864 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 865 | { |
5bfaadde | 866 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
867 | u32 freq_min; |
868 | u32 freq_max; | |
869 | ||
1fab46f0 | 870 | /* range check: frequency */ |
2030c032 | 871 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
872 | if ((freq_min && c->frequency < freq_min) || |
873 | (freq_max && c->frequency > freq_max)) { | |
363c35fc | 874 | printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
5bfaadde | 875 | fe->dvb->num, fe->id, c->frequency, freq_min, freq_max); |
1fab46f0 OE |
876 | return -EINVAL; |
877 | } | |
878 | ||
879 | /* range check: symbol rate */ | |
5bfaadde MCC |
880 | switch (c->delivery_system) { |
881 | case SYS_DVBS: | |
882 | case SYS_DVBS2: | |
883 | case SYS_TURBO: | |
884 | case SYS_DVBC_ANNEX_A: | |
885 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 886 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 887 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 888 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 889 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
363c35fc | 890 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
5bfaadde MCC |
891 | fe->dvb->num, fe->id, c->symbol_rate, |
892 | fe->ops.info.symbol_rate_min, | |
893 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
894 | return -EINVAL; |
895 | } | |
5bfaadde MCC |
896 | default: |
897 | break; | |
1fab46f0 OE |
898 | } |
899 | ||
900 | return 0; | |
901 | } | |
902 | ||
b6e760f3 PB |
903 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
904 | { | |
50727719 | 905 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 | 906 | int i; |
149709f5 | 907 | u32 delsys; |
b6e760f3 | 908 | |
149709f5 | 909 | delsys = c->delivery_system; |
50727719 | 910 | memset(c, 0, sizeof(struct dtv_frontend_properties)); |
149709f5 | 911 | c->delivery_system = delsys; |
50727719 AO |
912 | |
913 | c->state = DTV_CLEAR; | |
26c924fe | 914 | |
5bfaadde MCC |
915 | dprintk("%s() Clearing cache for delivery system %d\n", __func__, |
916 | c->delivery_system); | |
26c924fe | 917 | |
50727719 | 918 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 919 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
920 | c->guard_interval = GUARD_INTERVAL_AUTO; |
921 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 922 | c->symbol_rate = 0; |
50727719 AO |
923 | c->code_rate_HP = FEC_AUTO; |
924 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 925 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 926 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 927 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
928 | c->sectone = SEC_TONE_OFF; |
929 | c->pilot = PILOT_AUTO; | |
50727719 | 930 | |
a520ca97 MCC |
931 | c->isdbt_partial_reception = 0; |
932 | c->isdbt_sb_mode = 0; | |
933 | c->isdbt_sb_subchannel = 0; | |
934 | c->isdbt_sb_segment_idx = 0; | |
935 | c->isdbt_sb_segment_count = 0; | |
936 | c->isdbt_layer_enabled = 0; | |
b6e760f3 | 937 | for (i = 0; i < 3; i++) { |
50727719 AO |
938 | c->layer[i].fec = FEC_AUTO; |
939 | c->layer[i].modulation = QAM_AUTO; | |
a520ca97 MCC |
940 | c->layer[i].interleaving = 0; |
941 | c->layer[i].segment_count = 0; | |
b6e760f3 PB |
942 | } |
943 | ||
26c924fe MCC |
944 | c->isdbs_ts_id = 0; |
945 | c->dvbt2_plp_id = 0; | |
946 | ||
5bfaadde MCC |
947 | switch (c->delivery_system) { |
948 | case SYS_DVBS: | |
949 | case SYS_DVBS2: | |
950 | case SYS_TURBO: | |
951 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
952 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
953 | break; | |
954 | case SYS_ATSC: | |
955 | c->modulation = VSB_8; | |
956 | break; | |
957 | default: | |
958 | c->modulation = QAM_AUTO; | |
959 | break; | |
960 | } | |
961 | ||
b6e760f3 PB |
962 | return 0; |
963 | } | |
964 | ||
965 | #define _DTV_CMD(n, s, b) \ | |
966 | [n] = { \ | |
967 | .name = #n, \ | |
968 | .cmd = n, \ | |
969 | .set = s,\ | |
970 | .buffer = b \ | |
971 | } | |
972 | ||
ec05a642 | 973 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
974 | _DTV_CMD(DTV_TUNE, 1, 0), |
975 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
976 | |
977 | /* Set */ | |
06d3a396 MCC |
978 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
979 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
980 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
981 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
982 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
983 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
984 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
985 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
986 | _DTV_CMD(DTV_TONE, 1, 0), | |
987 | _DTV_CMD(DTV_PILOT, 1, 0), | |
988 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
989 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
990 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
991 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
992 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
993 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
994 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
b6e760f3 PB |
995 | |
996 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
997 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
998 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
999 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1000 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1001 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1002 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1003 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1004 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1005 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1006 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1007 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1008 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1009 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1010 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1011 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1012 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1013 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1014 | ||
1015 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 0, 0), | |
1016 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 0, 0), | |
1017 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 0, 0), | |
1018 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 0, 0), | |
1019 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 0, 0), | |
e7b7949a | 1020 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 0, 0), |
b6e760f3 PB |
1021 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 0, 0), |
1022 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 0, 0), | |
1023 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 0, 0), | |
1024 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 0, 0), | |
1025 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 0, 0), | |
1026 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 0, 0), | |
1027 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 0, 0), | |
1028 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 0, 0), | |
1029 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 0, 0), | |
1030 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 0, 0), | |
1031 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 0, 0), | |
1032 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 0, 0), | |
1033 | ||
98293ef3 | 1034 | _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0), |
ec05a642 | 1035 | _DTV_CMD(DTV_DVBT2_PLP_ID, 1, 0), |
98293ef3 | 1036 | |
6b73eeaf | 1037 | /* Get */ |
06d3a396 MCC |
1038 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1039 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
1040 | _DTV_CMD(DTV_CODE_RATE_HP, 0, 0), | |
1041 | _DTV_CMD(DTV_CODE_RATE_LP, 0, 0), | |
1042 | _DTV_CMD(DTV_GUARD_INTERVAL, 0, 0), | |
1043 | _DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0), | |
1044 | _DTV_CMD(DTV_HIERARCHY, 0, 0), | |
ba2780c7 MA |
1045 | |
1046 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
6b73eeaf ST |
1047 | }; |
1048 | ||
072ce0c5 | 1049 | static void dtv_property_dump(struct dtv_property *tvp) |
6b73eeaf ST |
1050 | { |
1051 | int i; | |
1052 | ||
106ff9e0 | 1053 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
a1bc84c0 | 1054 | printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n", |
4aae8efb DB |
1055 | __func__, tvp->cmd); |
1056 | return; | |
1057 | } | |
1058 | ||
a1bc84c0 ST |
1059 | dprintk("%s() tvp.cmd = 0x%08x (%s)\n" |
1060 | ,__func__ | |
6b73eeaf | 1061 | ,tvp->cmd |
56f0680a | 1062 | ,dtv_cmds[ tvp->cmd ].name); |
6b73eeaf | 1063 | |
56f0680a | 1064 | if(dtv_cmds[ tvp->cmd ].buffer) { |
6b73eeaf | 1065 | |
a1bc84c0 ST |
1066 | dprintk("%s() tvp.u.buffer.len = 0x%02x\n" |
1067 | ,__func__ | |
6b73eeaf ST |
1068 | ,tvp->u.buffer.len); |
1069 | ||
1070 | for(i = 0; i < tvp->u.buffer.len; i++) | |
a1bc84c0 ST |
1071 | dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
1072 | ,__func__ | |
6b73eeaf ST |
1073 | ,i |
1074 | ,tvp->u.buffer.data[i]); | |
1075 | ||
1076 | } else | |
a1bc84c0 | 1077 | dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data); |
6b73eeaf ST |
1078 | } |
1079 | ||
ee33c525 ST |
1080 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1081 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1082 | * it's being used for the legacy or new API, reducing code and complexity. | |
1083 | */ | |
5bfaadde MCC |
1084 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1085 | struct dtv_frontend_properties *c, | |
1086 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1087 | { |
ee33c525 ST |
1088 | c->frequency = p->frequency; |
1089 | c->inversion = p->inversion; | |
1090 | ||
5bfaadde MCC |
1091 | switch (dvbv3_type(c->delivery_system)) { |
1092 | case DVBV3_QPSK: | |
1093 | dprintk("%s() Preparing QPSK req\n", __func__); | |
ee33c525 ST |
1094 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1095 | c->fec_inner = p->u.qpsk.fec_inner; | |
1096 | break; | |
5bfaadde MCC |
1097 | case DVBV3_QAM: |
1098 | dprintk("%s() Preparing QAM req\n", __func__); | |
ee33c525 ST |
1099 | c->symbol_rate = p->u.qam.symbol_rate; |
1100 | c->fec_inner = p->u.qam.fec_inner; | |
1101 | c->modulation = p->u.qam.modulation; | |
1102 | break; | |
5bfaadde MCC |
1103 | case DVBV3_OFDM: |
1104 | dprintk("%s() Preparing OFDM req\n", __func__); | |
9a27e6a0 MCC |
1105 | switch (p->u.ofdm.bandwidth) { |
1106 | case BANDWIDTH_10_MHZ: | |
1107 | c->bandwidth_hz = 10000000; | |
1108 | break; | |
1109 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1110 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1111 | break; |
1112 | case BANDWIDTH_7_MHZ: | |
1113 | c->bandwidth_hz = 7000000; | |
1114 | break; | |
1115 | case BANDWIDTH_6_MHZ: | |
1116 | c->bandwidth_hz = 6000000; | |
1117 | break; | |
1118 | case BANDWIDTH_5_MHZ: | |
1119 | c->bandwidth_hz = 5000000; | |
1120 | break; | |
1121 | case BANDWIDTH_1_712_MHZ: | |
1122 | c->bandwidth_hz = 1712000; | |
1123 | break; | |
1124 | case BANDWIDTH_AUTO: | |
75b7f943 | 1125 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1126 | } |
1127 | ||
ee33c525 ST |
1128 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1129 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1130 | c->modulation = p->u.ofdm.constellation; | |
1131 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1132 | c->guard_interval = p->u.ofdm.guard_interval; | |
1133 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1134 | break; | |
5bfaadde MCC |
1135 | case DVBV3_ATSC: |
1136 | dprintk("%s() Preparing ATSC req\n", __func__); | |
ee33c525 | 1137 | c->modulation = p->u.vsb.modulation; |
80a773c9 ST |
1138 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1139 | c->delivery_system = SYS_ATSC; | |
1140 | else | |
1141 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1142 | break; |
5bfaadde MCC |
1143 | case DVBV3_UNKNOWN: |
1144 | printk(KERN_ERR | |
1145 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1146 | __func__, c->delivery_system); | |
1147 | return -EINVAL; | |
ee33c525 | 1148 | } |
5bfaadde MCC |
1149 | |
1150 | return 0; | |
ee33c525 ST |
1151 | } |
1152 | ||
d5748f10 ST |
1153 | /* Ensure the cached values are set correctly in the frontend |
1154 | * legacy tuning structures, for the advanced tuning API. | |
1155 | */ | |
5bfaadde | 1156 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
a689e365 | 1157 | struct dvb_frontend_parameters *p) |
6b73eeaf | 1158 | { |
15cc2bb3 | 1159 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1160 | |
d5748f10 ST |
1161 | p->frequency = c->frequency; |
1162 | p->inversion = c->inversion; | |
6b73eeaf | 1163 | |
5bfaadde MCC |
1164 | switch (dvbv3_type(c->delivery_system)) { |
1165 | case DVBV3_UNKNOWN: | |
1166 | printk(KERN_ERR | |
1167 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1168 | __func__, c->delivery_system); | |
1169 | return -EINVAL; | |
1170 | case DVBV3_QPSK: | |
a1bc84c0 | 1171 | dprintk("%s() Preparing QPSK req\n", __func__); |
d5748f10 ST |
1172 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1173 | p->u.qpsk.fec_inner = c->fec_inner; | |
1174 | break; | |
5bfaadde | 1175 | case DVBV3_QAM: |
a1bc84c0 | 1176 | dprintk("%s() Preparing QAM req\n", __func__); |
d5748f10 ST |
1177 | p->u.qam.symbol_rate = c->symbol_rate; |
1178 | p->u.qam.fec_inner = c->fec_inner; | |
1179 | p->u.qam.modulation = c->modulation; | |
1180 | break; | |
5bfaadde | 1181 | case DVBV3_OFDM: |
a1bc84c0 | 1182 | dprintk("%s() Preparing OFDM req\n", __func__); |
5bfaadde | 1183 | |
9a27e6a0 MCC |
1184 | switch (c->bandwidth_hz) { |
1185 | case 10000000: | |
1186 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1187 | break; | |
1188 | case 8000000: | |
75b7f943 | 1189 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1190 | break; |
1191 | case 7000000: | |
1192 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1193 | break; | |
1194 | case 6000000: | |
1195 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1196 | break; | |
1197 | case 5000000: | |
1198 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1199 | break; | |
1200 | case 1712000: | |
1201 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1202 | break; | |
1203 | case 0: | |
1204 | default: | |
75b7f943 | 1205 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1206 | } |
d5748f10 ST |
1207 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1208 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1209 | p->u.ofdm.constellation = c->modulation; | |
1210 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1211 | p->u.ofdm.guard_interval = c->guard_interval; | |
1212 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1213 | break; | |
5bfaadde | 1214 | case DVBV3_ATSC: |
a1bc84c0 | 1215 | dprintk("%s() Preparing VSB req\n", __func__); |
d5748f10 ST |
1216 | p->u.vsb.modulation = c->modulation; |
1217 | break; | |
1218 | } | |
5bfaadde | 1219 | return 0; |
6b73eeaf ST |
1220 | } |
1221 | ||
a689e365 MCC |
1222 | /** |
1223 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1224 | * @fe: struct dvb_frontend pointer | |
1225 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1226 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1227 | * | |
1228 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1229 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1230 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1231 | */ | |
1232 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
a689e365 MCC |
1233 | struct dvb_frontend_parameters *p_out) |
1234 | { | |
a689e365 MCC |
1235 | int r; |
1236 | ||
a689e365 | 1237 | if (fe->ops.get_frontend) { |
7c61d80a | 1238 | r = fe->ops.get_frontend(fe); |
a689e365 MCC |
1239 | if (unlikely(r < 0)) |
1240 | return r; | |
7c61d80a | 1241 | if (p_out) |
a689e365 MCC |
1242 | dtv_property_legacy_params_sync(fe, p_out); |
1243 | return 0; | |
1244 | } | |
1245 | ||
7c61d80a | 1246 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1247 | return 0; |
a689e365 MCC |
1248 | } |
1249 | ||
16ef8def | 1250 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1251 | unsigned int cmd, void *parg); |
16ef8def | 1252 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1253 | unsigned int cmd, void *parg); |
1254 | ||
072ce0c5 | 1255 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1256 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1257 | struct dtv_property *tvp, |
16ef8def | 1258 | struct file *file) |
363429a0 | 1259 | { |
5bfaadde | 1260 | int r, ncaps; |
bfbf2dae | 1261 | |
363429a0 | 1262 | switch(tvp->cmd) { |
ba2780c7 | 1263 | case DTV_ENUM_DELSYS: |
5bfaadde MCC |
1264 | ncaps = 0; |
1265 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1266 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; | |
1267 | ncaps++; | |
1268 | } | |
1269 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1270 | break; |
363429a0 | 1271 | case DTV_FREQUENCY: |
50727719 | 1272 | tvp->u.data = c->frequency; |
363429a0 ST |
1273 | break; |
1274 | case DTV_MODULATION: | |
50727719 | 1275 | tvp->u.data = c->modulation; |
363429a0 | 1276 | break; |
75b7f943 | 1277 | case DTV_BANDWIDTH_HZ: |
50727719 | 1278 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1279 | break; |
1280 | case DTV_INVERSION: | |
50727719 | 1281 | tvp->u.data = c->inversion; |
363429a0 ST |
1282 | break; |
1283 | case DTV_SYMBOL_RATE: | |
50727719 | 1284 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1285 | break; |
1286 | case DTV_INNER_FEC: | |
50727719 | 1287 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1288 | break; |
1289 | case DTV_PILOT: | |
50727719 | 1290 | tvp->u.data = c->pilot; |
363429a0 ST |
1291 | break; |
1292 | case DTV_ROLLOFF: | |
50727719 | 1293 | tvp->u.data = c->rolloff; |
363429a0 ST |
1294 | break; |
1295 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1296 | tvp->u.data = c->delivery_system; |
363429a0 | 1297 | break; |
363429a0 | 1298 | case DTV_VOLTAGE: |
50727719 | 1299 | tvp->u.data = c->voltage; |
363429a0 ST |
1300 | break; |
1301 | case DTV_TONE: | |
50727719 | 1302 | tvp->u.data = c->sectone; |
363429a0 | 1303 | break; |
eacf8d8d ST |
1304 | case DTV_API_VERSION: |
1305 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1306 | break; | |
a4de91be | 1307 | case DTV_CODE_RATE_HP: |
50727719 | 1308 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1309 | break; |
1310 | case DTV_CODE_RATE_LP: | |
50727719 | 1311 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1312 | break; |
b87625f0 | 1313 | case DTV_GUARD_INTERVAL: |
50727719 | 1314 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1315 | break; |
1316 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1317 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1318 | break; |
ef526f42 | 1319 | case DTV_HIERARCHY: |
50727719 | 1320 | tvp->u.data = c->hierarchy; |
ef526f42 | 1321 | break; |
b6e760f3 PB |
1322 | |
1323 | /* ISDB-T Support here */ | |
1324 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1325 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1326 | break; |
1327 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1328 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1329 | break; |
1330 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1331 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1332 | break; |
1333 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1334 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1335 | break; |
1336 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1337 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1338 | break; |
e7b7949a | 1339 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1340 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1341 | break; |
b6e760f3 | 1342 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1343 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1344 | break; |
1345 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1346 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1347 | break; |
1348 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1349 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1350 | break; |
1351 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1352 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1353 | break; |
1354 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1355 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1356 | break; |
1357 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1358 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1359 | break; |
1360 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1361 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1362 | break; |
1363 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1364 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1365 | break; |
1366 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1367 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1368 | break; |
1369 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1370 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1371 | break; |
1372 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1373 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1374 | break; |
1375 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1376 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1377 | break; |
98293ef3 | 1378 | case DTV_ISDBS_TS_ID: |
50727719 | 1379 | tvp->u.data = c->isdbs_ts_id; |
98293ef3 | 1380 | break; |
94d56ffa | 1381 | case DTV_DVBT2_PLP_ID: |
50727719 | 1382 | tvp->u.data = c->dvbt2_plp_id; |
94d56ffa | 1383 | break; |
363429a0 | 1384 | default: |
aff8ab5c | 1385 | return -EINVAL; |
363429a0 ST |
1386 | } |
1387 | ||
e23d9ae3 AO |
1388 | /* Allow the frontend to override outgoing properties */ |
1389 | if (fe->ops.get_property) { | |
1390 | r = fe->ops.get_property(fe, tvp); | |
1391 | if (r < 0) | |
1392 | return r; | |
1393 | } | |
1394 | ||
639544d7 MCC |
1395 | dtv_property_dump(tvp); |
1396 | ||
aff8ab5c | 1397 | return 0; |
363429a0 ST |
1398 | } |
1399 | ||
5bfaadde MCC |
1400 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1401 | ||
04be0f76 MCC |
1402 | static bool is_dvbv3_delsys(u32 delsys) |
1403 | { | |
1404 | bool status; | |
1405 | ||
1406 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || | |
1407 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
1408 | ||
1409 | return status; | |
1410 | } | |
1411 | ||
1412 | static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system) | |
1413 | { | |
1414 | int ncaps, i; | |
1415 | u32 delsys = SYS_UNDEFINED; | |
1416 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1417 | enum dvbv3_emulation_type type; | |
1418 | ||
f4b1952a MCC |
1419 | /* |
1420 | * It was reported that some old DVBv5 applications were | |
1421 | * filling delivery_system with SYS_UNDEFINED. If this happens, | |
1422 | * assume that the application wants to use the first supported | |
1423 | * delivery system. | |
1424 | */ | |
1425 | if (c->delivery_system == SYS_UNDEFINED) | |
1426 | c->delivery_system = fe->ops.delsys[0]; | |
1427 | ||
04be0f76 MCC |
1428 | if (desired_system == SYS_UNDEFINED) { |
1429 | /* | |
1430 | * A DVBv3 call doesn't know what's the desired system. | |
37fa53c6 MCC |
1431 | * Also, DVBv3 applications don't know that ops.info->type |
1432 | * could be changed, and they simply dies when it doesn't | |
1433 | * match. | |
1434 | * So, don't change the current delivery system, as it | |
1435 | * may be trying to do the wrong thing, like setting an | |
1436 | * ISDB-T frontend as DVB-T. Instead, find the closest | |
1437 | * DVBv3 system that matches the delivery system. | |
04be0f76 MCC |
1438 | */ |
1439 | if (is_dvbv3_delsys(c->delivery_system)) { | |
1440 | dprintk("%s() Using delivery system to %d\n", | |
1441 | __func__, c->delivery_system); | |
1442 | return 0; | |
1443 | } | |
1444 | type = dvbv3_type(c->delivery_system); | |
1445 | switch (type) { | |
1446 | case DVBV3_QPSK: | |
37fa53c6 | 1447 | desired_system = SYS_DVBS; |
04be0f76 MCC |
1448 | break; |
1449 | case DVBV3_QAM: | |
37fa53c6 | 1450 | desired_system = SYS_DVBC_ANNEX_A; |
04be0f76 MCC |
1451 | break; |
1452 | case DVBV3_ATSC: | |
37fa53c6 | 1453 | desired_system = SYS_ATSC; |
04be0f76 MCC |
1454 | break; |
1455 | case DVBV3_OFDM: | |
37fa53c6 | 1456 | desired_system = SYS_DVBT; |
04be0f76 MCC |
1457 | break; |
1458 | default: | |
1459 | dprintk("%s(): This frontend doesn't support DVBv3 calls\n", | |
1460 | __func__); | |
1461 | return -EINVAL; | |
1462 | } | |
04be0f76 MCC |
1463 | } else { |
1464 | /* | |
37fa53c6 MCC |
1465 | * This is a DVBv5 call. So, it likely knows the supported |
1466 | * delivery systems. | |
04be0f76 | 1467 | */ |
37fa53c6 MCC |
1468 | |
1469 | /* Check if the desired delivery system is supported */ | |
04be0f76 MCC |
1470 | ncaps = 0; |
1471 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1472 | if (fe->ops.delsys[ncaps] == desired_system) { | |
1473 | c->delivery_system = desired_system; | |
1474 | dprintk("%s() Changing delivery system to %d\n", | |
1475 | __func__, desired_system); | |
1476 | return 0; | |
1477 | } | |
6c4b78cb | 1478 | ncaps++; |
04be0f76 MCC |
1479 | } |
1480 | type = dvbv3_type(desired_system); | |
1481 | ||
1482 | /* | |
1483 | * The delivery system is not supported. See if it can be | |
1484 | * emulated. | |
1485 | * The emulation only works if the desired system is one of the | |
1486 | * DVBv3 delivery systems | |
1487 | */ | |
1488 | if (!is_dvbv3_delsys(desired_system)) { | |
1489 | dprintk("%s() can't use a DVBv3 FE_SET_FRONTEND call on this frontend\n", | |
1490 | __func__); | |
1491 | return -EINVAL; | |
1492 | } | |
1493 | ||
1494 | /* | |
1495 | * Get the last non-DVBv3 delivery system that has the same type | |
1496 | * of the desired system | |
1497 | */ | |
1498 | ncaps = 0; | |
1499 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1500 | if ((dvbv3_type(fe->ops.delsys[ncaps]) == type) && | |
1501 | !is_dvbv3_delsys(fe->ops.delsys[ncaps])) | |
1502 | delsys = fe->ops.delsys[ncaps]; | |
1503 | ncaps++; | |
1504 | } | |
1505 | /* There's nothing compatible with the desired delivery system */ | |
1506 | if (delsys == SYS_UNDEFINED) { | |
1507 | dprintk("%s() Incompatible DVBv3 FE_SET_FRONTEND call for this frontend\n", | |
1508 | __func__); | |
1509 | return -EINVAL; | |
1510 | } | |
1511 | c->delivery_system = delsys; | |
1512 | } | |
1513 | ||
1514 | /* | |
37fa53c6 MCC |
1515 | * The DVBv3 or DVBv5 call is requesting a different system. So, |
1516 | * emulation is needed. | |
1517 | * | |
04be0f76 MCC |
1518 | * Emulate newer delivery systems like ISDBT, DVBT and DMBTH |
1519 | * for older DVBv5 applications. The emulation will try to use | |
1520 | * the auto mode for most things, and will assume that the desired | |
1521 | * delivery system is the last one at the ops.delsys[] array | |
1522 | */ | |
1523 | dprintk("%s() Using delivery system %d emulated as if it were a %d\n", | |
1524 | __func__, delsys, desired_system); | |
1525 | ||
1526 | /* | |
a520ca97 MCC |
1527 | * For now, handles ISDB-T calls. More code may be needed here for the |
1528 | * other emulated stuff | |
04be0f76 MCC |
1529 | */ |
1530 | if (type == DVBV3_OFDM) { | |
a520ca97 MCC |
1531 | if (c->delivery_system == SYS_ISDBT) { |
1532 | dprintk("%s() Using defaults for SYS_ISDBT\n", | |
1533 | __func__); | |
1534 | if (!c->bandwidth_hz) | |
1535 | c->bandwidth_hz = 6000000; | |
1536 | ||
1537 | c->isdbt_partial_reception = 0; | |
1538 | c->isdbt_sb_mode = 0; | |
1539 | c->isdbt_sb_subchannel = 0; | |
1540 | c->isdbt_sb_segment_idx = 0; | |
1541 | c->isdbt_sb_segment_count = 0; | |
1542 | c->isdbt_layer_enabled = 0; | |
1543 | for (i = 0; i < 3; i++) { | |
1544 | c->layer[i].fec = FEC_AUTO; | |
1545 | c->layer[i].modulation = QAM_AUTO; | |
1546 | c->layer[i].interleaving = 0; | |
1547 | c->layer[i].segment_count = 0; | |
1548 | } | |
04be0f76 MCC |
1549 | } |
1550 | } | |
9474c5e6 MCC |
1551 | dprintk("change delivery system on cache to %d\n", c->delivery_system); |
1552 | ||
04be0f76 MCC |
1553 | return 0; |
1554 | } | |
1555 | ||
072ce0c5 MCC |
1556 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1557 | struct dtv_property *tvp, | |
072ce0c5 | 1558 | struct file *file) |
6b73eeaf ST |
1559 | { |
1560 | int r = 0; | |
50727719 | 1561 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1562 | |
bfbf2dae | 1563 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1564 | if (fe->ops.set_property) { |
bfbf2dae | 1565 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1566 | if (r < 0) |
1567 | return r; | |
1568 | } | |
bfbf2dae | 1569 | |
6b73eeaf | 1570 | switch(tvp->cmd) { |
e7fee0f3 | 1571 | case DTV_CLEAR: |
5bfaadde MCC |
1572 | /* |
1573 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1574 | * not effect hardware. |
1575 | */ | |
b6e760f3 | 1576 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1577 | break; |
e7fee0f3 | 1578 | case DTV_TUNE: |
6b73eeaf | 1579 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1580 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1581 | * ioctl. | |
6b73eeaf | 1582 | */ |
50727719 | 1583 | c->state = tvp->cmd; |
a1bc84c0 | 1584 | dprintk("%s() Finalised property cache\n", __func__); |
d5748f10 | 1585 | |
5bfaadde | 1586 | r = dtv_set_frontend(fe); |
6b73eeaf | 1587 | break; |
363429a0 | 1588 | case DTV_FREQUENCY: |
50727719 | 1589 | c->frequency = tvp->u.data; |
6b73eeaf | 1590 | break; |
363429a0 | 1591 | case DTV_MODULATION: |
50727719 | 1592 | c->modulation = tvp->u.data; |
6b73eeaf | 1593 | break; |
75b7f943 | 1594 | case DTV_BANDWIDTH_HZ: |
50727719 | 1595 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1596 | break; |
363429a0 | 1597 | case DTV_INVERSION: |
50727719 | 1598 | c->inversion = tvp->u.data; |
6b73eeaf | 1599 | break; |
363429a0 | 1600 | case DTV_SYMBOL_RATE: |
50727719 | 1601 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1602 | break; |
363429a0 | 1603 | case DTV_INNER_FEC: |
50727719 | 1604 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1605 | break; |
363429a0 | 1606 | case DTV_PILOT: |
50727719 | 1607 | c->pilot = tvp->u.data; |
6b73eeaf | 1608 | break; |
363429a0 | 1609 | case DTV_ROLLOFF: |
50727719 | 1610 | c->rolloff = tvp->u.data; |
6b73eeaf | 1611 | break; |
363429a0 | 1612 | case DTV_DELIVERY_SYSTEM: |
04be0f76 | 1613 | r = set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1614 | break; |
363429a0 | 1615 | case DTV_VOLTAGE: |
50727719 | 1616 | c->voltage = tvp->u.data; |
16ef8def | 1617 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1618 | (void *)c->voltage); |
13c97bf5 | 1619 | break; |
363429a0 | 1620 | case DTV_TONE: |
50727719 | 1621 | c->sectone = tvp->u.data; |
16ef8def | 1622 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1623 | (void *)c->sectone); |
13c97bf5 | 1624 | break; |
a4de91be | 1625 | case DTV_CODE_RATE_HP: |
50727719 | 1626 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1627 | break; |
1628 | case DTV_CODE_RATE_LP: | |
50727719 | 1629 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1630 | break; |
b87625f0 | 1631 | case DTV_GUARD_INTERVAL: |
50727719 | 1632 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1633 | break; |
1634 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1635 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1636 | break; |
ef526f42 | 1637 | case DTV_HIERARCHY: |
50727719 | 1638 | c->hierarchy = tvp->u.data; |
ef526f42 | 1639 | break; |
b6e760f3 PB |
1640 | |
1641 | /* ISDB-T Support here */ | |
1642 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1643 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1644 | break; |
1645 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1646 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1647 | break; |
1648 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1649 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1650 | break; |
1651 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1652 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1653 | break; |
1654 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1655 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1656 | break; |
e7b7949a | 1657 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1658 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1659 | break; |
b6e760f3 | 1660 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1661 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1662 | break; |
1663 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1664 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1665 | break; |
1666 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1667 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1668 | break; |
1669 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1670 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1671 | break; |
1672 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1673 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1674 | break; |
1675 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1676 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1677 | break; |
1678 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1679 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1680 | break; |
1681 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1682 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1683 | break; |
1684 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1685 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1686 | break; |
1687 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1688 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1689 | break; |
1690 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1691 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1692 | break; |
1693 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1694 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1695 | break; |
98293ef3 | 1696 | case DTV_ISDBS_TS_ID: |
50727719 | 1697 | c->isdbs_ts_id = tvp->u.data; |
94d56ffa AO |
1698 | break; |
1699 | case DTV_DVBT2_PLP_ID: | |
50727719 | 1700 | c->dvbt2_plp_id = tvp->u.data; |
98293ef3 | 1701 | break; |
363429a0 | 1702 | default: |
aff8ab5c | 1703 | return -EINVAL; |
6b73eeaf ST |
1704 | } |
1705 | ||
13c97bf5 | 1706 | return r; |
6b73eeaf ST |
1707 | } |
1708 | ||
16ef8def | 1709 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1710 | unsigned int cmd, void *parg) |
1711 | { | |
1712 | struct dvb_device *dvbdev = file->private_data; | |
1713 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1714 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1715 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
1716 | int err = -EOPNOTSUPP; |
1717 | ||
fb8253ba | 1718 | dprintk("%s (%d)\n", __func__, _IOC_NR(cmd)); |
1da177e4 | 1719 | |
e36309f5 | 1720 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
1721 | return -ENODEV; |
1722 | ||
1723 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1724 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
1725 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) | |
1726 | return -EPERM; | |
1727 | ||
1728 | if (down_interruptible (&fepriv->sem)) | |
1729 | return -ERESTARTSYS; | |
1730 | ||
13c97bf5 | 1731 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1732 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1733 | else { |
50727719 | 1734 | c->state = DTV_UNDEFINED; |
16ef8def | 1735 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1736 | } |
13c97bf5 ST |
1737 | |
1738 | up(&fepriv->sem); | |
1739 | return err; | |
1740 | } | |
1741 | ||
16ef8def | 1742 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1743 | unsigned int cmd, void *parg) |
1744 | { | |
1745 | struct dvb_device *dvbdev = file->private_data; | |
1746 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1747 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1748 | int err = 0; |
e7fee0f3 ST |
1749 | |
1750 | struct dtv_properties *tvps = NULL; | |
1751 | struct dtv_property *tvp = NULL; | |
1752 | int i; | |
13c97bf5 ST |
1753 | |
1754 | dprintk("%s\n", __func__); | |
1755 | ||
6b73eeaf | 1756 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1757 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1758 | |
a1bc84c0 ST |
1759 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1760 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1761 | |
1762 | /* Put an arbitrary limit on the number of messages that can | |
1763 | * be sent at once */ | |
6068f506 | 1764 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1765 | return -EINVAL; |
1766 | ||
6e3924aa | 1767 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1768 | if (!tvp) { |
1769 | err = -ENOMEM; | |
1770 | goto out; | |
6b73eeaf ST |
1771 | } |
1772 | ||
e7fee0f3 ST |
1773 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1774 | err = -EFAULT; | |
1775 | goto out; | |
1776 | } | |
1777 | ||
d48cb402 | 1778 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1779 | err = dtv_property_process_set(fe, tvp + i, file); |
1780 | if (err < 0) | |
1781 | goto out; | |
1782 | (tvp + i)->result = err; | |
d48cb402 | 1783 | } |
e7fee0f3 | 1784 | |
50727719 | 1785 | if (c->state == DTV_TUNE) |
a1bc84c0 | 1786 | dprintk("%s() Property cache is full, tuning\n", __func__); |
bfbf2dae | 1787 | |
363429a0 ST |
1788 | } else |
1789 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1790 | tvps = (struct dtv_properties __user *)parg; |
1791 | ||
a1bc84c0 ST |
1792 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1793 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1794 | |
1795 | /* Put an arbitrary limit on the number of messages that can | |
1796 | * be sent at once */ | |
6068f506 | 1797 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1798 | return -EINVAL; |
1799 | ||
6e3924aa | 1800 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1801 | if (!tvp) { |
1802 | err = -ENOMEM; | |
1803 | goto out; | |
1804 | } | |
1805 | ||
1806 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1807 | err = -EFAULT; | |
1808 | goto out; | |
1809 | } | |
1810 | ||
a689e365 MCC |
1811 | /* |
1812 | * Fills the cache out struct with the cache contents, plus | |
b1e9a650 | 1813 | * the data retrieved from get_frontend. |
a689e365 | 1814 | */ |
7c61d80a | 1815 | dtv_get_frontend(fe, NULL); |
d48cb402 | 1816 | for (i = 0; i < tvps->num; i++) { |
7c61d80a | 1817 | err = dtv_property_process_get(fe, c, tvp + i, file); |
aff8ab5c AO |
1818 | if (err < 0) |
1819 | goto out; | |
1820 | (tvp + i)->result = err; | |
d48cb402 | 1821 | } |
363429a0 ST |
1822 | |
1823 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
1824 | err = -EFAULT; | |
1825 | goto out; | |
1826 | } | |
1827 | ||
363429a0 ST |
1828 | } else |
1829 | err = -EOPNOTSUPP; | |
1830 | ||
e7fee0f3 ST |
1831 | out: |
1832 | kfree(tvp); | |
13c97bf5 ST |
1833 | return err; |
1834 | } | |
1835 | ||
5bfaadde | 1836 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 1837 | { |
9682cea2 MCC |
1838 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1839 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1840 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 1841 | u32 rolloff = 0; |
9682cea2 | 1842 | |
5bfaadde MCC |
1843 | if (dvb_frontend_check_parameters(fe) < 0) |
1844 | return -EINVAL; | |
9682cea2 | 1845 | |
5bfaadde MCC |
1846 | /* |
1847 | * Be sure that the bandwidth will be filled for all | |
1848 | * non-satellite systems, as tuners need to know what | |
1849 | * low pass/Nyquist half filter should be applied, in | |
1850 | * order to avoid inter-channel noise. | |
1851 | * | |
1852 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
1853 | * ATSC and DVB-C don't set, so, the core should fill it. | |
1854 | * | |
1855 | * On DVB-C Annex A and C, the bandwidth is a function of | |
1856 | * the roll-off and symbol rate. Annex B defines different | |
1857 | * roll-off factors depending on the modulation. Fortunately, | |
1858 | * Annex B is only used with 6MHz, so there's no need to | |
1859 | * calculate it. | |
1860 | * | |
1861 | * While not officially supported, a side effect of handling it at | |
1862 | * the cache level is that a program could retrieve the bandwidth | |
1863 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
1864 | */ | |
1865 | switch (c->delivery_system) { | |
1866 | case SYS_ATSC: | |
1867 | case SYS_DVBC_ANNEX_B: | |
1868 | c->bandwidth_hz = 6000000; | |
1869 | break; | |
1870 | case SYS_DVBC_ANNEX_A: | |
1871 | rolloff = 115; | |
1872 | break; | |
1873 | case SYS_DVBC_ANNEX_C: | |
1874 | rolloff = 113; | |
1875 | break; | |
1876 | default: | |
1877 | break; | |
1878 | } | |
1879 | if (rolloff) | |
1880 | c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; | |
9682cea2 MCC |
1881 | |
1882 | /* force auto frequency inversion if requested */ | |
5bfaadde | 1883 | if (dvb_force_auto_inversion) |
9682cea2 | 1884 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
1885 | |
1886 | /* | |
1887 | * without hierarchical coding code_rate_LP is irrelevant, | |
1888 | * so we tolerate the otherwise invalid FEC_NONE setting | |
1889 | */ | |
1890 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
1891 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
1892 | |
1893 | /* get frontend-specific tuning settings */ | |
5bfaadde | 1894 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
1895 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
1896 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
1897 | fepriv->max_drift = fetunesettings.max_drift; | |
1898 | fepriv->step_size = fetunesettings.step_size; | |
1899 | } else { | |
1900 | /* default values */ | |
5bfaadde MCC |
1901 | switch (c->delivery_system) { |
1902 | case SYS_DVBC_ANNEX_A: | |
1903 | case SYS_DVBC_ANNEX_C: | |
1904 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
1905 | fepriv->step_size = c->symbol_rate / 16000; |
1906 | fepriv->max_drift = c->symbol_rate / 2000; | |
1907 | break; | |
5bfaadde MCC |
1908 | case SYS_DVBT: |
1909 | case SYS_DVBT2: | |
1910 | case SYS_ISDBT: | |
1911 | case SYS_DMBTH: | |
1912 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
1913 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
1914 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
1915 | break; | |
5bfaadde MCC |
1916 | default: |
1917 | /* | |
1918 | * FIXME: This sounds wrong! if freqency_stepsize is | |
1919 | * defined by the frontend, why not use it??? | |
1920 | */ | |
1921 | fepriv->min_delay = HZ / 20; | |
1922 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
1923 | fepriv->max_drift = 0; |
1924 | break; | |
1925 | } | |
1926 | } | |
1927 | if (dvb_override_tune_delay > 0) | |
1928 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
1929 | ||
1930 | fepriv->state = FESTATE_RETUNE; | |
1931 | ||
1932 | /* Request the search algorithm to search */ | |
1933 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
1934 | ||
1935 | dvb_frontend_clear_events(fe); | |
1936 | dvb_frontend_add_event(fe, 0); | |
1937 | dvb_frontend_wakeup(fe); | |
1938 | fepriv->status = 0; | |
1939 | ||
1940 | return 0; | |
1941 | } | |
1942 | ||
1943 | ||
16ef8def | 1944 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
1945 | unsigned int cmd, void *parg) |
1946 | { | |
1947 | struct dvb_device *dvbdev = file->private_data; | |
1948 | struct dvb_frontend *fe = dvbdev->priv; | |
1949 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 1950 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
9133aee0 MK |
1951 | int cb_err, err = -EOPNOTSUPP; |
1952 | ||
1953 | if (fe->dvb->fe_ioctl_override) { | |
1954 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
1955 | DVB_FE_IOCTL_PRE); | |
1956 | if (cb_err < 0) | |
1957 | return cb_err; | |
1958 | if (cb_err > 0) | |
1959 | return 0; | |
1960 | /* fe_ioctl_override returning 0 allows | |
1961 | * dvb-core to continue handling the ioctl */ | |
1962 | } | |
13c97bf5 | 1963 | |
1da177e4 LT |
1964 | switch (cmd) { |
1965 | case FE_GET_INFO: { | |
0c53c70f | 1966 | struct dvb_frontend_info* info = parg; |
9474c5e6 | 1967 | |
dea74869 | 1968 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 1969 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 1970 | |
5bfaadde MCC |
1971 | /* |
1972 | * Associate the 4 delivery systems supported by DVBv3 | |
1973 | * API with their DVBv5 counterpart. For the other standards, | |
1974 | * use the closest type, assuming that it would hopefully | |
1975 | * work with a DVBv3 application. | |
1976 | * It should be noticed that, on multi-frontend devices with | |
1977 | * different types (terrestrial and cable, for example), | |
1978 | * a pure DVBv3 application won't be able to use all delivery | |
1979 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
1980 | * system should be enough for making it work. | |
1981 | */ | |
1982 | switch (dvbv3_type(c->delivery_system)) { | |
1983 | case DVBV3_QPSK: | |
9474c5e6 | 1984 | info->type = FE_QPSK; |
5bfaadde MCC |
1985 | break; |
1986 | case DVBV3_ATSC: | |
9474c5e6 | 1987 | info->type = FE_ATSC; |
5bfaadde MCC |
1988 | break; |
1989 | case DVBV3_QAM: | |
9474c5e6 | 1990 | info->type = FE_QAM; |
5bfaadde MCC |
1991 | break; |
1992 | case DVBV3_OFDM: | |
9474c5e6 | 1993 | info->type = FE_OFDM; |
5bfaadde MCC |
1994 | break; |
1995 | default: | |
1996 | printk(KERN_ERR | |
1997 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1998 | __func__, c->delivery_system); | |
1999 | fe->ops.info.type = FE_OFDM; | |
2000 | } | |
9474c5e6 MCC |
2001 | dprintk("current delivery system on cache: %d, V3 type: %d\n", |
2002 | c->delivery_system, fe->ops.info.type); | |
5bfaadde | 2003 | |
1da177e4 LT |
2004 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't |
2005 | * do it, it is done for it. */ | |
2006 | info->caps |= FE_CAN_INVERSION_AUTO; | |
2007 | err = 0; | |
2008 | break; | |
2009 | } | |
2010 | ||
6757ccc5 PB |
2011 | case FE_READ_STATUS: { |
2012 | fe_status_t* status = parg; | |
2013 | ||
25985edc | 2014 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2015 | * that user get signal state from previous tuning */ |
01886255 JG |
2016 | if (fepriv->state == FESTATE_RETUNE || |
2017 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2018 | err=0; |
2019 | *status = 0; | |
2020 | break; | |
2021 | } | |
2022 | ||
dea74869 PB |
2023 | if (fe->ops.read_status) |
2024 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2025 | break; |
6757ccc5 | 2026 | } |
1da177e4 | 2027 | case FE_READ_BER: |
dea74869 PB |
2028 | if (fe->ops.read_ber) |
2029 | err = fe->ops.read_ber(fe, (__u32*) parg); | |
1da177e4 LT |
2030 | break; |
2031 | ||
2032 | case FE_READ_SIGNAL_STRENGTH: | |
dea74869 PB |
2033 | if (fe->ops.read_signal_strength) |
2034 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); | |
1da177e4 LT |
2035 | break; |
2036 | ||
2037 | case FE_READ_SNR: | |
dea74869 PB |
2038 | if (fe->ops.read_snr) |
2039 | err = fe->ops.read_snr(fe, (__u16*) parg); | |
1da177e4 LT |
2040 | break; |
2041 | ||
2042 | case FE_READ_UNCORRECTED_BLOCKS: | |
dea74869 PB |
2043 | if (fe->ops.read_ucblocks) |
2044 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); | |
1da177e4 LT |
2045 | break; |
2046 | ||
2047 | ||
2048 | case FE_DISEQC_RESET_OVERLOAD: | |
dea74869 PB |
2049 | if (fe->ops.diseqc_reset_overload) { |
2050 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2051 | fepriv->state = FESTATE_DISEQC; |
2052 | fepriv->status = 0; | |
2053 | } | |
2054 | break; | |
2055 | ||
2056 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
2057 | if (fe->ops.diseqc_send_master_cmd) { |
2058 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
2059 | fepriv->state = FESTATE_DISEQC; |
2060 | fepriv->status = 0; | |
2061 | } | |
2062 | break; | |
2063 | ||
2064 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
2065 | if (fe->ops.diseqc_send_burst) { |
2066 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
2067 | fepriv->state = FESTATE_DISEQC; |
2068 | fepriv->status = 0; | |
2069 | } | |
2070 | break; | |
2071 | ||
2072 | case FE_SET_TONE: | |
dea74869 PB |
2073 | if (fe->ops.set_tone) { |
2074 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 2075 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
2076 | fepriv->state = FESTATE_DISEQC; |
2077 | fepriv->status = 0; | |
2078 | } | |
2079 | break; | |
2080 | ||
2081 | case FE_SET_VOLTAGE: | |
dea74869 PB |
2082 | if (fe->ops.set_voltage) { |
2083 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 2084 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
2085 | fepriv->state = FESTATE_DISEQC; |
2086 | fepriv->status = 0; | |
2087 | } | |
2088 | break; | |
2089 | ||
2090 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
2091 | if (fe->ops.dishnetwork_send_legacy_command) { |
2092 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
2093 | fepriv->state = FESTATE_DISEQC; |
2094 | fepriv->status = 0; | |
dea74869 | 2095 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2096 | /* |
2097 | * NOTE: This is a fallback condition. Some frontends | |
2098 | * (stv0299 for instance) take longer than 8msec to | |
2099 | * respond to a set_voltage command. Those switches | |
2100 | * need custom routines to switch properly. For all | |
2030c032 | 2101 | * other frontends, the following should work ok. |
83b75b04 N |
2102 | * Dish network legacy switches (as used by Dish500) |
2103 | * are controlled by sending 9-bit command words | |
2104 | * spaced 8msec apart. | |
25985edc | 2105 | * the actual command word is switch/port dependent |
83b75b04 N |
2106 | * so it is up to the userspace application to send |
2107 | * the right command. | |
2108 | * The command must always start with a '0' after | |
2109 | * initialization, so parg is 8 bits and does not | |
2110 | * include the initialization or start bit | |
2111 | */ | |
c6eb8eaf | 2112 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
2113 | struct timeval nexttime; |
2114 | struct timeval tv[10]; | |
2115 | int i; | |
2116 | u8 last = 1; | |
2117 | if (dvb_frontend_debug) | |
c6eb8eaf | 2118 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
2119 | do_gettimeofday(&nexttime); |
2120 | if (dvb_frontend_debug) | |
2121 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); | |
2122 | /* before sending a command, initialize by sending | |
2123 | * a 32ms 18V to the switch | |
2124 | */ | |
dea74869 | 2125 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2126 | dvb_frontend_sleep_until(&nexttime, 32000); |
2127 | ||
2128 | for (i = 0; i < 9; i++) { | |
2129 | if (dvb_frontend_debug) | |
2130 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 2131 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2132 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2133 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2134 | last = (last) ? 0 : 1; |
2135 | } | |
c6eb8eaf | 2136 | swcmd = swcmd >> 1; |
83b75b04 N |
2137 | if (i != 8) |
2138 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2139 | } | |
2140 | if (dvb_frontend_debug) { | |
2141 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 2142 | __func__, fe->dvb->num); |
83b75b04 N |
2143 | for (i = 1; i < 10; i++) |
2144 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
2145 | } | |
2146 | err = 0; | |
2147 | fepriv->state = FESTATE_DISEQC; | |
2148 | fepriv->status = 0; | |
1da177e4 LT |
2149 | } |
2150 | break; | |
2151 | ||
2152 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2153 | if (fe->ops.diseqc_recv_slave_reply) |
2154 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2155 | break; |
2156 | ||
2157 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2158 | if (fe->ops.enable_high_lnb_voltage) |
2159 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2160 | break; |
2161 | ||
9682cea2 | 2162 | case FE_SET_FRONTEND: |
04be0f76 MCC |
2163 | err = set_delivery_system(fe, SYS_UNDEFINED); |
2164 | if (err) | |
2165 | break; | |
2166 | ||
e399ce77 | 2167 | err = dtv_property_cache_sync(fe, c, parg); |
5bfaadde MCC |
2168 | if (err) |
2169 | break; | |
2170 | err = dtv_set_frontend(fe); | |
1da177e4 | 2171 | break; |
1da177e4 LT |
2172 | case FE_GET_EVENT: |
2173 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2174 | break; | |
2175 | ||
2176 | case FE_GET_FRONTEND: | |
e399ce77 | 2177 | err = dtv_get_frontend(fe, parg); |
1da177e4 | 2178 | break; |
36cb557a AQ |
2179 | |
2180 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 2181 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2182 | err = 0; |
36cb557a | 2183 | break; |
1da177e4 LT |
2184 | }; |
2185 | ||
9133aee0 MK |
2186 | if (fe->dvb->fe_ioctl_override) { |
2187 | cb_err = fe->dvb->fe_ioctl_override(fe, cmd, parg, | |
2188 | DVB_FE_IOCTL_POST); | |
2189 | if (cb_err < 0) | |
2190 | return cb_err; | |
2191 | } | |
2192 | ||
1da177e4 LT |
2193 | return err; |
2194 | } | |
2195 | ||
6b73eeaf | 2196 | |
1da177e4 LT |
2197 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2198 | { | |
2199 | struct dvb_device *dvbdev = file->private_data; | |
2200 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2201 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2202 | |
46b4f7c1 | 2203 | dprintk ("%s\n", __func__); |
1da177e4 LT |
2204 | |
2205 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2206 | ||
2207 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2208 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2209 | ||
2210 | return 0; | |
2211 | } | |
2212 | ||
2213 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2214 | { | |
2215 | struct dvb_device *dvbdev = file->private_data; | |
2216 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2217 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2218 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2219 | int ret; |
2220 | ||
46b4f7c1 | 2221 | dprintk ("%s\n", __func__); |
e36309f5 | 2222 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
2223 | return -ENODEV; | |
1da177e4 | 2224 | |
59b1842d DB |
2225 | if (adapter->mfe_shared) { |
2226 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2227 | |
2228 | if (adapter->mfe_dvbdev == NULL) | |
2229 | adapter->mfe_dvbdev = dvbdev; | |
2230 | ||
2231 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2232 | struct dvb_device | |
2233 | *mfedev = adapter->mfe_dvbdev; | |
2234 | struct dvb_frontend | |
2235 | *mfe = mfedev->priv; | |
2236 | struct dvb_frontend_private | |
2237 | *mfepriv = mfe->frontend_priv; | |
2238 | int mferetry = (dvb_mfe_wait_time << 1); | |
2239 | ||
2240 | mutex_unlock (&adapter->mfe_lock); | |
2241 | while (mferetry-- && (mfedev->users != -1 || | |
2242 | mfepriv->thread != NULL)) { | |
2243 | if(msleep_interruptible(500)) { | |
2244 | if(signal_pending(current)) | |
2245 | return -EINTR; | |
59b1842d | 2246 | } |
6594690b DB |
2247 | } |
2248 | ||
2249 | mutex_lock (&adapter->mfe_lock); | |
2250 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2251 | mfedev = adapter->mfe_dvbdev; |
2252 | mfe = mfedev->priv; | |
2253 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2254 | if (mfedev->users != -1 || |
2255 | mfepriv->thread != NULL) { | |
2256 | mutex_unlock (&adapter->mfe_lock); | |
2257 | return -EBUSY; | |
59b1842d | 2258 | } |
6594690b | 2259 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2260 | } |
59b1842d DB |
2261 | } |
2262 | } | |
2263 | ||
48136e1e OE |
2264 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2265 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2266 | goto err0; |
2d196931 DH |
2267 | |
2268 | /* If we took control of the bus, we need to force | |
2269 | reinitialization. This is because many ts_bus_ctrl() | |
2270 | functions strobe the RESET pin on the demod, and if the | |
2271 | frontend thread already exists then the dvb_init() routine | |
2272 | won't get called (which is what usually does initial | |
2273 | register configuration). */ | |
2274 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2275 | } |
2276 | ||
48136e1e OE |
2277 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2278 | goto err1; | |
04c56d0e | 2279 | |
48136e1e | 2280 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2281 | /* normal tune mode when opened R/W */ |
2282 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2283 | fepriv->tone = -1; | |
2284 | fepriv->voltage = -1; | |
2285 | ||
1da177e4 LT |
2286 | ret = dvb_frontend_start (fe); |
2287 | if (ret) | |
48136e1e | 2288 | goto err2; |
1da177e4 LT |
2289 | |
2290 | /* empty event queue */ | |
2291 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2292 | } | |
2293 | ||
59b1842d DB |
2294 | if (adapter->mfe_shared) |
2295 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2296 | return ret; |
48136e1e OE |
2297 | |
2298 | err2: | |
2299 | dvb_generic_release(inode, file); | |
2300 | err1: | |
2301 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2302 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2303 | err0: |
2304 | if (adapter->mfe_shared) | |
2305 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2306 | return ret; |
1da177e4 LT |
2307 | } |
2308 | ||
2309 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2310 | { | |
2311 | struct dvb_device *dvbdev = file->private_data; | |
2312 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2313 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2314 | int ret; |
1da177e4 | 2315 | |
46b4f7c1 | 2316 | dprintk ("%s\n", __func__); |
1da177e4 | 2317 | |
b9d5efcc | 2318 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2319 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2320 | mb(); |
2321 | } | |
1da177e4 | 2322 | |
ca5be9cd MR |
2323 | ret = dvb_generic_release (inode, file); |
2324 | ||
48136e1e | 2325 | if (dvbdev->users == -1) { |
b9d5efcc | 2326 | wake_up(&fepriv->wait_queue); |
e36309f5 | 2327 | if (fepriv->exit != DVB_FE_NO_EXIT) { |
48136e1e OE |
2328 | fops_put(file->f_op); |
2329 | file->f_op = NULL; | |
2330 | wake_up(&dvbdev->wait_queue); | |
2331 | } | |
2332 | if (fe->ops.ts_bus_ctrl) | |
2333 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2334 | } |
48136e1e | 2335 | |
ca5be9cd | 2336 | return ret; |
1da177e4 LT |
2337 | } |
2338 | ||
784e29d2 | 2339 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2340 | .owner = THIS_MODULE, |
16ef8def | 2341 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2342 | .poll = dvb_frontend_poll, |
2343 | .open = dvb_frontend_open, | |
6038f373 AB |
2344 | .release = dvb_frontend_release, |
2345 | .llseek = noop_llseek, | |
1da177e4 LT |
2346 | }; |
2347 | ||
2348 | int dvb_register_frontend(struct dvb_adapter* dvb, | |
2349 | struct dvb_frontend* fe) | |
2350 | { | |
2351 | struct dvb_frontend_private *fepriv; | |
2352 | static const struct dvb_device dvbdev_template = { | |
2353 | .users = ~0, | |
2354 | .writers = 1, | |
2355 | .readers = (~0)-1, | |
2356 | .fops = &dvb_frontend_fops, | |
2357 | .kernel_ioctl = dvb_frontend_ioctl | |
2358 | }; | |
2359 | ||
46b4f7c1 | 2360 | dprintk ("%s\n", __func__); |
1da177e4 | 2361 | |
3593cab5 | 2362 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2363 | return -ERESTARTSYS; |
2364 | ||
7408187d | 2365 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2366 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2367 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2368 | return -ENOMEM; |
2369 | } | |
0c53c70f | 2370 | fepriv = fe->frontend_priv; |
1da177e4 | 2371 | |
a0a4714c | 2372 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2373 | init_waitqueue_head (&fepriv->wait_queue); |
2374 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2375 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2376 | fe->dvb = dvb; |
2377 | fepriv->inversion = INVERSION_OFF; | |
2378 | ||
363c35fc | 2379 | printk ("DVB: registering adapter %i frontend %i (%s)...\n", |
1da177e4 | 2380 | fe->dvb->num, |
363c35fc | 2381 | fe->id, |
dea74869 | 2382 | fe->ops.info.name); |
1da177e4 LT |
2383 | |
2384 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2385 | fe, DVB_DEVICE_FRONTEND); | |
2386 | ||
5bfaadde MCC |
2387 | /* |
2388 | * Initialize the cache to the proper values according with the | |
2389 | * first supported delivery system (ops->delsys[0]) | |
2390 | */ | |
240ab508 MCC |
2391 | |
2392 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; | |
5bfaadde MCC |
2393 | dvb_frontend_clear_cache(fe); |
2394 | ||
3593cab5 | 2395 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2396 | return 0; |
2397 | } | |
2398 | EXPORT_SYMBOL(dvb_register_frontend); | |
2399 | ||
2400 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2401 | { | |
0c53c70f | 2402 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
46b4f7c1 | 2403 | dprintk ("%s\n", __func__); |
1da177e4 | 2404 | |
57861b43 | 2405 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2406 | dvb_frontend_stop (fe); |
57861b43 MR |
2407 | mutex_unlock(&frontend_mutex); |
2408 | ||
2409 | if (fepriv->dvbdev->users < -1) | |
2410 | wait_event(fepriv->dvbdev->wait_queue, | |
2411 | fepriv->dvbdev->users==-1); | |
2412 | ||
3593cab5 | 2413 | mutex_lock(&frontend_mutex); |
1da177e4 | 2414 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2415 | |
1da177e4 LT |
2416 | /* fe is invalid now */ |
2417 | kfree(fepriv); | |
3593cab5 | 2418 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2419 | return 0; |
2420 | } | |
2421 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2422 | |
149ef72d | 2423 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2424 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2425 | { | |
2426 | void *ptr; | |
2427 | ||
2428 | if (fe->ops.release_sec) { | |
2429 | fe->ops.release_sec(fe); | |
2430 | symbol_put_addr(fe->ops.release_sec); | |
2431 | } | |
2432 | if (fe->ops.tuner_ops.release) { | |
2433 | fe->ops.tuner_ops.release(fe); | |
2434 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2435 | } | |
2426a27e MK |
2436 | if (fe->ops.analog_ops.release) { |
2437 | fe->ops.analog_ops.release(fe); | |
2438 | symbol_put_addr(fe->ops.analog_ops.release); | |
2439 | } | |
f52a838b AQ |
2440 | ptr = (void*)fe->ops.release; |
2441 | if (ptr) { | |
2442 | fe->ops.release(fe); | |
2443 | symbol_put_addr(ptr); | |
2444 | } | |
2445 | } | |
2446 | #else | |
2447 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2448 | { | |
2449 | if (fe->ops.release_sec) | |
2450 | fe->ops.release_sec(fe); | |
2451 | if (fe->ops.tuner_ops.release) | |
2452 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2453 | if (fe->ops.analog_ops.release) |
2454 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2455 | if (fe->ops.release) |
2456 | fe->ops.release(fe); | |
2457 | } | |
2458 | #endif | |
2459 | EXPORT_SYMBOL(dvb_frontend_detach); |