]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * dvb_frontend.c: DVB frontend tuning interface/thread | |
3 | * | |
4 | * | |
5 | * Copyright (C) 1999-2001 Ralph Metzler | |
6 | * Marcus Metzler | |
7 | * Holger Waechtler | |
8 | * for convergence integrated media GmbH | |
9 | * | |
10 | * Copyright (C) 2004 Andrew de Quincey (tuning thread cleanup) | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License | |
14 | * as published by the Free Software Foundation; either version 2 | |
15 | * of the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | |
26 | */ | |
27 | ||
8de8594a MCC |
28 | /* Enables DVBv3 compatibility bits at the headers */ |
29 | #define __DVB_CORE__ | |
30 | ||
1da177e4 LT |
31 | #include <linux/string.h> |
32 | #include <linux/kernel.h> | |
33 | #include <linux/sched.h> | |
34 | #include <linux/wait.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/poll.h> | |
4c4cb1b1 | 37 | #include <linux/semaphore.h> |
1da177e4 | 38 | #include <linux/module.h> |
1da177e4 | 39 | #include <linux/list.h> |
7dfb7103 | 40 | #include <linux/freezer.h> |
cc89c229 | 41 | #include <linux/jiffies.h> |
8eec1429 | 42 | #include <linux/kthread.h> |
1da177e4 | 43 | #include <asm/processor.h> |
1da177e4 LT |
44 | |
45 | #include "dvb_frontend.h" | |
46 | #include "dvbdev.h" | |
eacf8d8d | 47 | #include <linux/dvb/version.h> |
1da177e4 LT |
48 | |
49 | static int dvb_frontend_debug; | |
849be2cd | 50 | static int dvb_shutdown_timeout; |
1da177e4 LT |
51 | static int dvb_force_auto_inversion; |
52 | static int dvb_override_tune_delay; | |
53 | static int dvb_powerdown_on_sleep = 1; | |
59b1842d | 54 | static int dvb_mfe_wait_time = 5; |
1da177e4 LT |
55 | |
56 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); | |
f4f009a7 | 57 | MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off)."); |
6baad3f0 | 58 | module_param(dvb_shutdown_timeout, int, 0644); |
1da177e4 | 59 | MODULE_PARM_DESC(dvb_shutdown_timeout, "wait <shutdown_timeout> seconds after close() before suspending hardware"); |
6baad3f0 | 60 | module_param(dvb_force_auto_inversion, int, 0644); |
1da177e4 | 61 | MODULE_PARM_DESC(dvb_force_auto_inversion, "0: normal (default), 1: INVERSION_AUTO forced always"); |
6baad3f0 | 62 | module_param(dvb_override_tune_delay, int, 0644); |
1da177e4 | 63 | MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt"); |
6baad3f0 | 64 | module_param(dvb_powerdown_on_sleep, int, 0644); |
a8558577 | 65 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
59b1842d DB |
66 | module_param(dvb_mfe_wait_time, int, 0644); |
67 | MODULE_PARM_DESC(dvb_mfe_wait_time, "Wait up to <mfe_wait_time> seconds on open() for multi-frontend to become available (default:5 seconds)"); | |
1da177e4 LT |
68 | |
69 | #define dprintk if (dvb_frontend_debug) printk | |
70 | ||
71 | #define FESTATE_IDLE 1 | |
72 | #define FESTATE_RETUNE 2 | |
73 | #define FESTATE_TUNING_FAST 4 | |
74 | #define FESTATE_TUNING_SLOW 8 | |
75 | #define FESTATE_TUNED 16 | |
76 | #define FESTATE_ZIGZAG_FAST 32 | |
77 | #define FESTATE_ZIGZAG_SLOW 64 | |
78 | #define FESTATE_DISEQC 128 | |
01886255 | 79 | #define FESTATE_ERROR 256 |
1da177e4 LT |
80 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
81 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) | |
82 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) | |
83 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) | |
0249ef16 MA |
84 | |
85 | #define FE_ALGO_HW 1 | |
1da177e4 LT |
86 | /* |
87 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. | |
88 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. | |
89 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. | |
90 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. | |
91 | * FESTATE_TUNED. The frontend has successfully locked on. | |
92 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. | |
93 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. | |
94 | * FESTATE_DISEQC. A DISEQC command has just been issued. | |
95 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. | |
96 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. | |
97 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. | |
98 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. | |
99 | */ | |
100 | ||
e36309f5 MC |
101 | #define DVB_FE_NO_EXIT 0 |
102 | #define DVB_FE_NORMAL_EXIT 1 | |
103 | #define DVB_FE_DEVICE_REMOVED 2 | |
104 | ||
3593cab5 | 105 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
106 | |
107 | struct dvb_frontend_private { | |
108 | ||
36cb557a | 109 | /* thread/frontend values */ |
1da177e4 | 110 | struct dvb_device *dvbdev; |
a5959dbe | 111 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
112 | struct dvb_fe_events events; |
113 | struct semaphore sem; | |
114 | struct list_head list_head; | |
115 | wait_queue_head_t wait_queue; | |
8eec1429 | 116 | struct task_struct *thread; |
1da177e4 | 117 | unsigned long release_jiffies; |
36cb557a AQ |
118 | unsigned int exit; |
119 | unsigned int wakeup; | |
1da177e4 | 120 | fe_status_t status; |
400b7083 | 121 | unsigned long tune_mode_flags; |
36cb557a | 122 | unsigned int delay; |
86f40cc3 | 123 | unsigned int reinitialise; |
64454016 AQ |
124 | int tone; |
125 | int voltage; | |
36cb557a AQ |
126 | |
127 | /* swzigzag values */ | |
128 | unsigned int state; | |
129 | unsigned int bending; | |
130 | int lnb_drift; | |
131 | unsigned int inversion; | |
132 | unsigned int auto_step; | |
133 | unsigned int auto_sub_step; | |
134 | unsigned int started_auto_step; | |
135 | unsigned int min_delay; | |
136 | unsigned int max_drift; | |
137 | unsigned int step_size; | |
138 | int quality; | |
139 | unsigned int check_wrapped; | |
c59e7870 | 140 | enum dvbfe_search algo_status; |
1da177e4 LT |
141 | }; |
142 | ||
86f40cc3 | 143 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 144 | static int dtv_get_frontend(struct dvb_frontend *fe, |
a689e365 | 145 | struct dvb_frontend_parameters *p_out); |
556a0442 CR |
146 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
147 | struct dvb_frontend_parameters *p); | |
a689e365 MCC |
148 | |
149 | static bool has_get_frontend(struct dvb_frontend *fe) | |
150 | { | |
c065f5b4 | 151 | return fe->ops.get_frontend != NULL; |
a689e365 | 152 | } |
1da177e4 | 153 | |
5bfaadde MCC |
154 | /* |
155 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
156 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
157 | * otherwise, a DVBv3 call will fail. | |
158 | */ | |
159 | enum dvbv3_emulation_type { | |
160 | DVBV3_UNKNOWN, | |
161 | DVBV3_QPSK, | |
162 | DVBV3_QAM, | |
163 | DVBV3_OFDM, | |
164 | DVBV3_ATSC, | |
165 | }; | |
166 | ||
167 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
168 | { | |
169 | switch (delivery_system) { | |
170 | case SYS_DVBC_ANNEX_A: | |
171 | case SYS_DVBC_ANNEX_C: | |
172 | return DVBV3_QAM; | |
173 | case SYS_DVBS: | |
174 | case SYS_DVBS2: | |
175 | case SYS_TURBO: | |
176 | case SYS_ISDBS: | |
177 | case SYS_DSS: | |
178 | return DVBV3_QPSK; | |
179 | case SYS_DVBT: | |
180 | case SYS_DVBT2: | |
181 | case SYS_ISDBT: | |
224b6642 | 182 | case SYS_DTMB: |
5bfaadde MCC |
183 | return DVBV3_OFDM; |
184 | case SYS_ATSC: | |
ca689488 | 185 | case SYS_ATSCMH: |
5bfaadde MCC |
186 | case SYS_DVBC_ANNEX_B: |
187 | return DVBV3_ATSC; | |
188 | case SYS_UNDEFINED: | |
189 | case SYS_ISDBC: | |
190 | case SYS_DVBH: | |
191 | case SYS_DAB: | |
5bfaadde MCC |
192 | default: |
193 | /* | |
194 | * Doesn't know how to emulate those types and/or | |
195 | * there's no frontend driver from this type yet | |
196 | * with some emulation code, so, we're not sure yet how | |
197 | * to handle them, or they're not compatible with a DVBv3 call. | |
198 | */ | |
199 | return DVBV3_UNKNOWN; | |
200 | } | |
201 | } | |
202 | ||
1da177e4 LT |
203 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
204 | { | |
0c53c70f | 205 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
206 | struct dvb_fe_events *events = &fepriv->events; |
207 | struct dvb_frontend_event *e; | |
208 | int wp; | |
209 | ||
46b4f7c1 | 210 | dprintk ("%s\n", __func__); |
1da177e4 | 211 | |
a689e365 | 212 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
7c61d80a | 213 | dtv_get_frontend(fe, &fepriv->parameters_out); |
1da177e4 | 214 | |
77b1e2fb | 215 | mutex_lock(&events->mtx); |
1da177e4 | 216 | |
77b1e2fb | 217 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
218 | if (wp == events->eventr) { |
219 | events->overflow = 1; | |
220 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
221 | } | |
222 | ||
223 | e = &events->events[events->eventw]; | |
77b1e2fb | 224 | e->status = status; |
a5959dbe | 225 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
226 | |
227 | events->eventw = wp; | |
228 | ||
03b76123 | 229 | mutex_unlock(&events->mtx); |
1da177e4 | 230 | |
1da177e4 LT |
231 | wake_up_interruptible (&events->wait_queue); |
232 | } | |
233 | ||
234 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
235 | struct dvb_frontend_event *event, int flags) | |
236 | { | |
0c53c70f | 237 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
238 | struct dvb_fe_events *events = &fepriv->events; |
239 | ||
46b4f7c1 | 240 | dprintk ("%s\n", __func__); |
1da177e4 LT |
241 | |
242 | if (events->overflow) { | |
243 | events->overflow = 0; | |
244 | return -EOVERFLOW; | |
245 | } | |
246 | ||
247 | if (events->eventw == events->eventr) { | |
248 | int ret; | |
249 | ||
250 | if (flags & O_NONBLOCK) | |
251 | return -EWOULDBLOCK; | |
252 | ||
253 | up(&fepriv->sem); | |
254 | ||
255 | ret = wait_event_interruptible (events->wait_queue, | |
256 | events->eventw != events->eventr); | |
257 | ||
258 | if (down_interruptible (&fepriv->sem)) | |
259 | return -ERESTARTSYS; | |
260 | ||
261 | if (ret < 0) | |
262 | return ret; | |
263 | } | |
264 | ||
77b1e2fb AO |
265 | mutex_lock(&events->mtx); |
266 | *event = events->events[events->eventr]; | |
1da177e4 | 267 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 268 | mutex_unlock(&events->mtx); |
1da177e4 LT |
269 | |
270 | return 0; | |
271 | } | |
272 | ||
20640bea AO |
273 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
274 | { | |
275 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
276 | struct dvb_fe_events *events = &fepriv->events; | |
277 | ||
278 | mutex_lock(&events->mtx); | |
279 | events->eventr = events->eventw; | |
280 | mutex_unlock(&events->mtx); | |
281 | } | |
282 | ||
1da177e4 LT |
283 | static void dvb_frontend_init(struct dvb_frontend *fe) |
284 | { | |
363c35fc | 285 | dprintk ("DVB: initialising adapter %i frontend %i (%s)...\n", |
1da177e4 | 286 | fe->dvb->num, |
363c35fc | 287 | fe->id, |
dea74869 PB |
288 | fe->ops.info.name); |
289 | ||
290 | if (fe->ops.init) | |
291 | fe->ops.init(fe); | |
292 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
293 | if (fe->ops.i2c_gate_ctrl) |
294 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
295 | fe->ops.tuner_ops.init(fe); |
296 | if (fe->ops.i2c_gate_ctrl) | |
297 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 298 | } |
1da177e4 LT |
299 | } |
300 | ||
86f40cc3 AQ |
301 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
302 | { | |
303 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
304 | ||
305 | fepriv->reinitialise = 1; | |
306 | dvb_frontend_wakeup(fe); | |
307 | } | |
308 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
309 | ||
6304a60e AP |
310 | void dvb_frontend_retune(struct dvb_frontend *fe) |
311 | { | |
312 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
313 | ||
314 | fepriv->state = FESTATE_RETUNE; | |
315 | dvb_frontend_wakeup(fe); | |
316 | } | |
317 | EXPORT_SYMBOL(dvb_frontend_retune); | |
318 | ||
36cb557a | 319 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 320 | { |
36cb557a | 321 | int q2; |
1da177e4 | 322 | |
46b4f7c1 | 323 | dprintk ("%s\n", __func__); |
1da177e4 | 324 | |
36cb557a AQ |
325 | if (locked) |
326 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
327 | else | |
328 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 329 | |
36cb557a AQ |
330 | q2 = fepriv->quality - 128; |
331 | q2 *= q2; | |
1da177e4 | 332 | |
36cb557a | 333 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
334 | } |
335 | ||
336 | /** | |
337 | * Performs automatic twiddling of frontend parameters. | |
338 | * | |
339 | * @param fe The frontend concerned. | |
340 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
341 | * @returns Number of complete iterations that have been performed. | |
342 | */ | |
36cb557a | 343 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
344 | { |
345 | int autoinversion; | |
346 | int ready = 0; | |
01886255 | 347 | int fe_set_err = 0; |
0c53c70f | 348 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
349 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
350 | int original_inversion = c->inversion; | |
351 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
352 | |
353 | /* are we using autoinversion? */ | |
dea74869 | 354 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 355 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
356 | |
357 | /* setup parameters correctly */ | |
358 | while(!ready) { | |
359 | /* calculate the lnb_drift */ | |
360 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
361 | ||
362 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
363 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
364 | fepriv->auto_step = 0; | |
365 | fepriv->auto_sub_step = 0; | |
366 | fepriv->lnb_drift = 0; | |
367 | } | |
368 | ||
369 | /* perform inversion and +/- zigzag */ | |
370 | switch(fepriv->auto_sub_step) { | |
371 | case 0: | |
372 | /* try with the current inversion and current drift setting */ | |
373 | ready = 1; | |
374 | break; | |
375 | ||
376 | case 1: | |
377 | if (!autoinversion) break; | |
378 | ||
379 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
380 | ready = 1; | |
381 | break; | |
382 | ||
383 | case 2: | |
384 | if (fepriv->lnb_drift == 0) break; | |
385 | ||
386 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
387 | ready = 1; | |
388 | break; | |
389 | ||
390 | case 3: | |
391 | if (fepriv->lnb_drift == 0) break; | |
392 | if (!autoinversion) break; | |
393 | ||
394 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
395 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
396 | ready = 1; | |
397 | break; | |
398 | ||
399 | default: | |
400 | fepriv->auto_step++; | |
401 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
402 | break; | |
403 | } | |
404 | ||
405 | if (!ready) fepriv->auto_sub_step++; | |
406 | } | |
407 | ||
408 | /* if this attempt would hit where we started, indicate a complete | |
409 | * iteration has occurred */ | |
410 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
411 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
412 | return 1; | |
413 | } | |
414 | ||
415 | dprintk("%s: drift:%i inversion:%i auto_step:%i " | |
416 | "auto_sub_step:%i started_auto_step:%i\n", | |
46b4f7c1 | 417 | __func__, fepriv->lnb_drift, fepriv->inversion, |
1da177e4 LT |
418 | fepriv->auto_step, fepriv->auto_sub_step, fepriv->started_auto_step); |
419 | ||
420 | /* set the frontend itself */ | |
ac3852c4 | 421 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 422 | if (autoinversion) |
ac3852c4 MCC |
423 | c->inversion = fepriv->inversion; |
424 | tmp = *c; | |
dea74869 | 425 | if (fe->ops.set_frontend) |
bc9cd273 | 426 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 427 | *c = tmp; |
01886255 JG |
428 | if (fe_set_err < 0) { |
429 | fepriv->state = FESTATE_ERROR; | |
430 | return fe_set_err; | |
431 | } | |
1da177e4 | 432 | |
ac3852c4 MCC |
433 | c->frequency = original_frequency; |
434 | c->inversion = original_inversion; | |
1da177e4 LT |
435 | |
436 | fepriv->auto_sub_step++; | |
437 | return 0; | |
438 | } | |
439 | ||
36cb557a AQ |
440 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
441 | { | |
30d9464c | 442 | fe_status_t s = 0; |
01886255 | 443 | int retval = 0; |
36cb557a | 444 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 445 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
446 | |
447 | /* if we've got no parameters, just keep idling */ | |
448 | if (fepriv->state & FESTATE_IDLE) { | |
449 | fepriv->delay = 3*HZ; | |
450 | fepriv->quality = 0; | |
451 | return; | |
452 | } | |
453 | ||
454 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
455 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
456 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 457 | tmp = *c; |
dea74869 | 458 | if (fe->ops.set_frontend) |
bc9cd273 | 459 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 460 | *c = tmp; |
01886255 JG |
461 | if (retval < 0) |
462 | fepriv->state = FESTATE_ERROR; | |
463 | else | |
464 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
465 | } |
466 | fepriv->delay = 3*HZ; | |
467 | fepriv->quality = 0; | |
468 | return; | |
469 | } | |
470 | ||
471 | /* get the frontend status */ | |
472 | if (fepriv->state & FESTATE_RETUNE) { | |
473 | s = 0; | |
474 | } else { | |
dea74869 PB |
475 | if (fe->ops.read_status) |
476 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
477 | if (s != fepriv->status) { |
478 | dvb_frontend_add_event(fe, s); | |
479 | fepriv->status = s; | |
480 | } | |
481 | } | |
482 | ||
483 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
484 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
485 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
486 | fepriv->state = FESTATE_TUNED; | |
487 | ||
488 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 489 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
490 | (c->inversion == INVERSION_AUTO)) { |
491 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
492 | } |
493 | return; | |
494 | } | |
495 | ||
496 | /* if we are tuned already, check we're still locked */ | |
497 | if (fepriv->state & FESTATE_TUNED) { | |
498 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
499 | ||
500 | /* we're tuned, and the lock is still good... */ | |
501 | if (s & FE_HAS_LOCK) { | |
502 | return; | |
503 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
504 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
505 | fepriv->started_auto_step = fepriv->auto_step; | |
506 | fepriv->check_wrapped = 0; | |
507 | } | |
508 | } | |
509 | ||
510 | /* don't actually do anything if we're in the LOSTLOCK state, | |
511 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
512 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 513 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
514 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
515 | return; | |
516 | } | |
517 | ||
518 | /* don't do anything if we're in the DISEQC state, since this | |
519 | * might be someone with a motorized dish controlled by DISEQC. | |
520 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
521 | if (fepriv->state & FESTATE_DISEQC) { | |
522 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
523 | return; | |
524 | } | |
525 | ||
526 | /* if we're in the RETUNE state, set everything up for a brand | |
527 | * new scan, keeping the current inversion setting, as the next | |
528 | * tune is _very_ likely to require the same */ | |
529 | if (fepriv->state & FESTATE_RETUNE) { | |
530 | fepriv->lnb_drift = 0; | |
531 | fepriv->auto_step = 0; | |
532 | fepriv->auto_sub_step = 0; | |
533 | fepriv->started_auto_step = 0; | |
534 | fepriv->check_wrapped = 0; | |
535 | } | |
536 | ||
537 | /* fast zigzag. */ | |
538 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
539 | fepriv->delay = fepriv->min_delay; | |
540 | ||
2030c032 | 541 | /* perform a tune */ |
01886255 JG |
542 | retval = dvb_frontend_swzigzag_autotune(fe, |
543 | fepriv->check_wrapped); | |
544 | if (retval < 0) { | |
545 | return; | |
546 | } else if (retval) { | |
36cb557a AQ |
547 | /* OK, if we've run out of trials at the fast speed. |
548 | * Drop back to slow for the _next_ attempt */ | |
549 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
550 | fepriv->started_auto_step = fepriv->auto_step; | |
551 | return; | |
552 | } | |
553 | fepriv->check_wrapped = 1; | |
554 | ||
555 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
556 | * This ensures we cannot return from an | |
557 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
558 | * occurs */ | |
559 | if (fepriv->state & FESTATE_RETUNE) { | |
560 | fepriv->state = FESTATE_TUNING_FAST; | |
561 | } | |
562 | } | |
563 | ||
564 | /* slow zigzag */ | |
565 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
566 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
567 | ||
568 | /* Note: don't bother checking for wrapping; we stay in this | |
569 | * state until we get a lock */ | |
570 | dvb_frontend_swzigzag_autotune(fe, 0); | |
571 | } | |
572 | } | |
573 | ||
1da177e4 LT |
574 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
575 | { | |
0c53c70f | 576 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 577 | |
e36309f5 | 578 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
579 | return 1; |
580 | ||
581 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 582 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 583 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
584 | return 1; |
585 | ||
586 | return 0; | |
587 | } | |
588 | ||
589 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
590 | { | |
0c53c70f | 591 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
592 | |
593 | if (fepriv->wakeup) { | |
594 | fepriv->wakeup = 0; | |
595 | return 1; | |
596 | } | |
597 | return dvb_frontend_is_exiting(fe); | |
598 | } | |
599 | ||
600 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
601 | { | |
0c53c70f | 602 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
603 | |
604 | fepriv->wakeup = 1; | |
605 | wake_up_interruptible(&fepriv->wait_queue); | |
606 | } | |
607 | ||
1da177e4 LT |
608 | static int dvb_frontend_thread(void *data) |
609 | { | |
0c53c70f JS |
610 | struct dvb_frontend *fe = data; |
611 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 612 | fe_status_t s; |
c59e7870 MA |
613 | enum dvbfe_algo algo; |
614 | ||
7e072221 | 615 | bool re_tune = false; |
1da177e4 | 616 | |
46b4f7c1 | 617 | dprintk("%s\n", __func__); |
1da177e4 | 618 | |
36cb557a AQ |
619 | fepriv->check_wrapped = 0; |
620 | fepriv->quality = 0; | |
621 | fepriv->delay = 3*HZ; | |
1da177e4 | 622 | fepriv->status = 0; |
1da177e4 | 623 | fepriv->wakeup = 0; |
04c56d0e AQ |
624 | fepriv->reinitialise = 0; |
625 | ||
626 | dvb_frontend_init(fe); | |
1da177e4 | 627 | |
83144186 | 628 | set_freezable(); |
1da177e4 LT |
629 | while (1) { |
630 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 631 | restart: |
94238e9b | 632 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
633 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
634 | || freezing(current), | |
8eec1429 HP |
635 | fepriv->delay); |
636 | ||
637 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 638 | /* got signal or quitting */ |
e36309f5 | 639 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
640 | break; |
641 | } | |
642 | ||
8eec1429 | 643 | if (try_to_freeze()) |
6591691b | 644 | goto restart; |
1da177e4 LT |
645 | |
646 | if (down_interruptible(&fepriv->sem)) | |
647 | break; | |
648 | ||
86f40cc3 AQ |
649 | if (fepriv->reinitialise) { |
650 | dvb_frontend_init(fe); | |
42f4e774 | 651 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 652 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 653 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 654 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
655 | fepriv->reinitialise = 0; |
656 | } | |
657 | ||
36cb557a | 658 | /* do an iteration of the tuning loop */ |
d772bd03 | 659 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
660 | algo = fe->ops.get_frontend_algo(fe); |
661 | switch (algo) { | |
662 | case DVBFE_ALGO_HW: | |
663 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); | |
c59e7870 | 664 | |
d772bd03 | 665 | if (fepriv->state & FESTATE_RETUNE) { |
c59e7870 | 666 | dprintk("%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 667 | re_tune = true; |
d772bd03 | 668 | fepriv->state = FESTATE_TUNED; |
45145b67 SA |
669 | } else { |
670 | re_tune = false; | |
d772bd03 MA |
671 | } |
672 | ||
c59e7870 | 673 | if (fe->ops.tune) |
7e072221 | 674 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 675 | |
2fac9a0f | 676 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
c59e7870 | 677 | dprintk("%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
678 | dvb_frontend_add_event(fe, s); |
679 | fepriv->status = s; | |
680 | } | |
c59e7870 MA |
681 | break; |
682 | case DVBFE_ALGO_SW: | |
683 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); | |
70d90635 | 684 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
685 | break; |
686 | case DVBFE_ALGO_CUSTOM: | |
c59e7870 MA |
687 | dprintk("%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
688 | if (fepriv->state & FESTATE_RETUNE) { | |
689 | dprintk("%s: Retune requested, FESTAT_RETUNE\n", __func__); | |
690 | fepriv->state = FESTATE_TUNED; | |
691 | } | |
692 | /* Case where we are going to search for a carrier | |
693 | * User asked us to retune again for some reason, possibly | |
694 | * requesting a search with a new set of parameters | |
695 | */ | |
696 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 697 | if (fe->ops.search) { |
41da5320 | 698 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
699 | /* We did do a search as was requested, the flags are |
700 | * now unset as well and has the flags wrt to search. | |
701 | */ | |
7bcbdf38 AJ |
702 | } else { |
703 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
704 | } | |
c59e7870 MA |
705 | } |
706 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 707 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
708 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
709 | fepriv->delay = HZ / 2; | |
710 | } | |
556a0442 | 711 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); |
7bcbdf38 AJ |
712 | fe->ops.read_status(fe, &s); |
713 | if (s != fepriv->status) { | |
714 | dvb_frontend_add_event(fe, s); /* update event list */ | |
715 | fepriv->status = s; | |
716 | if (!(s & FE_HAS_LOCK)) { | |
717 | fepriv->delay = HZ / 10; | |
718 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
719 | } else { | |
720 | fepriv->delay = 60 * HZ; | |
721 | } | |
c59e7870 MA |
722 | } |
723 | break; | |
724 | default: | |
725 | dprintk("%s: UNDEFINED ALGO !\n", __func__); | |
726 | break; | |
727 | } | |
728 | } else { | |
4a4edcca | 729 | dvb_frontend_swzigzag(fe); |
c59e7870 | 730 | } |
1da177e4 LT |
731 | } |
732 | ||
608f62d6 OE |
733 | if (dvb_powerdown_on_sleep) { |
734 | if (fe->ops.set_voltage) | |
735 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 736 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
737 | if (fe->ops.i2c_gate_ctrl) |
738 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
739 | fe->ops.tuner_ops.sleep(fe); |
740 | if (fe->ops.i2c_gate_ctrl) | |
741 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 742 | } |
dea74869 PB |
743 | if (fe->ops.sleep) |
744 | fe->ops.sleep(fe); | |
1da177e4 LT |
745 | } |
746 | ||
8eec1429 | 747 | fepriv->thread = NULL; |
e36309f5 MC |
748 | if (kthread_should_stop()) |
749 | fepriv->exit = DVB_FE_DEVICE_REMOVED; | |
750 | else | |
751 | fepriv->exit = DVB_FE_NO_EXIT; | |
1da177e4 LT |
752 | mb(); |
753 | ||
754 | dvb_frontend_wakeup(fe); | |
755 | return 0; | |
756 | } | |
757 | ||
758 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
759 | { | |
0c53c70f | 760 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 761 | |
46b4f7c1 | 762 | dprintk ("%s\n", __func__); |
1da177e4 | 763 | |
e36309f5 | 764 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
765 | mb(); |
766 | ||
8eec1429 | 767 | if (!fepriv->thread) |
1da177e4 LT |
768 | return; |
769 | ||
8eec1429 | 770 | kthread_stop(fepriv->thread); |
ca5be9cd | 771 | |
a0a4714c | 772 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
773 | fepriv->state = FESTATE_IDLE; |
774 | ||
775 | /* paranoia check in case a signal arrived */ | |
8eec1429 HP |
776 | if (fepriv->thread) |
777 | printk("dvb_frontend_stop: warning: thread %p won't exit\n", | |
778 | fepriv->thread); | |
1da177e4 LT |
779 | } |
780 | ||
83b75b04 N |
781 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
782 | { | |
783 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
784 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
785 | curtime.tv_usec - lasttime.tv_usec); | |
786 | } | |
787 | EXPORT_SYMBOL(timeval_usec_diff); | |
788 | ||
789 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
790 | { | |
791 | curtime->tv_usec += add_usec; | |
792 | if (curtime->tv_usec >= 1000000) { | |
793 | curtime->tv_usec -= 1000000; | |
794 | curtime->tv_sec++; | |
795 | } | |
796 | } | |
797 | ||
798 | /* | |
799 | * Sleep until gettimeofday() > waketime + add_usec | |
800 | * This needs to be as precise as possible, but as the delay is | |
801 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
802 | * followed by usleep (normally a busy-wait loop) for the remainder | |
803 | */ | |
804 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
805 | { | |
806 | struct timeval lasttime; | |
807 | s32 delta, newdelta; | |
808 | ||
809 | timeval_usec_add(waketime, add_usec); | |
810 | ||
811 | do_gettimeofday(&lasttime); | |
812 | delta = timeval_usec_diff(lasttime, *waketime); | |
813 | if (delta > 2500) { | |
814 | msleep((delta - 1500) / 1000); | |
815 | do_gettimeofday(&lasttime); | |
816 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
817 | delta = (newdelta > delta) ? 0 : newdelta; | |
818 | } | |
819 | if (delta > 0) | |
820 | udelay(delta); | |
821 | } | |
822 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
823 | ||
1da177e4 LT |
824 | static int dvb_frontend_start(struct dvb_frontend *fe) |
825 | { | |
826 | int ret; | |
0c53c70f | 827 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 828 | struct task_struct *fe_thread; |
1da177e4 | 829 | |
46b4f7c1 | 830 | dprintk ("%s\n", __func__); |
1da177e4 | 831 | |
8eec1429 | 832 | if (fepriv->thread) { |
e36309f5 | 833 | if (fepriv->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
834 | return 0; |
835 | else | |
836 | dvb_frontend_stop (fe); | |
837 | } | |
838 | ||
839 | if (signal_pending(current)) | |
840 | return -EINTR; | |
841 | if (down_interruptible (&fepriv->sem)) | |
842 | return -EINTR; | |
843 | ||
844 | fepriv->state = FESTATE_IDLE; | |
e36309f5 | 845 | fepriv->exit = DVB_FE_NO_EXIT; |
8eec1429 | 846 | fepriv->thread = NULL; |
1da177e4 LT |
847 | mb(); |
848 | ||
8eec1429 | 849 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 850 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
851 | if (IS_ERR(fe_thread)) { |
852 | ret = PTR_ERR(fe_thread); | |
853 | printk("dvb_frontend_start: failed to start kthread (%d)\n", ret); | |
1da177e4 LT |
854 | up(&fepriv->sem); |
855 | return ret; | |
856 | } | |
8eec1429 | 857 | fepriv->thread = fe_thread; |
1da177e4 LT |
858 | return 0; |
859 | } | |
860 | ||
2030c032 | 861 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
862 | u32 *freq_min, u32 *freq_max) |
863 | { | |
864 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
865 | ||
866 | if (fe->ops.info.frequency_max == 0) | |
867 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
868 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
869 | *freq_max = fe->ops.info.frequency_max; | |
870 | else | |
871 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
872 | ||
873 | if (*freq_min == 0 || *freq_max == 0) | |
363c35fc ST |
874 | printk(KERN_WARNING "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
875 | fe->dvb->num,fe->id); | |
c471b331 OE |
876 | } |
877 | ||
5bfaadde | 878 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 879 | { |
5bfaadde | 880 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
881 | u32 freq_min; |
882 | u32 freq_max; | |
883 | ||
1fab46f0 | 884 | /* range check: frequency */ |
2030c032 | 885 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
886 | if ((freq_min && c->frequency < freq_min) || |
887 | (freq_max && c->frequency > freq_max)) { | |
363c35fc | 888 | printk(KERN_WARNING "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
5bfaadde | 889 | fe->dvb->num, fe->id, c->frequency, freq_min, freq_max); |
1fab46f0 OE |
890 | return -EINVAL; |
891 | } | |
892 | ||
893 | /* range check: symbol rate */ | |
5bfaadde MCC |
894 | switch (c->delivery_system) { |
895 | case SYS_DVBS: | |
896 | case SYS_DVBS2: | |
897 | case SYS_TURBO: | |
898 | case SYS_DVBC_ANNEX_A: | |
899 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 900 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 901 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 902 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 903 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
363c35fc | 904 | printk(KERN_WARNING "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
5bfaadde MCC |
905 | fe->dvb->num, fe->id, c->symbol_rate, |
906 | fe->ops.info.symbol_rate_min, | |
907 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
908 | return -EINVAL; |
909 | } | |
5bfaadde MCC |
910 | default: |
911 | break; | |
1fab46f0 OE |
912 | } |
913 | ||
914 | return 0; | |
915 | } | |
916 | ||
b6e760f3 PB |
917 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
918 | { | |
50727719 | 919 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 | 920 | int i; |
149709f5 | 921 | u32 delsys; |
b6e760f3 | 922 | |
149709f5 | 923 | delsys = c->delivery_system; |
50727719 | 924 | memset(c, 0, sizeof(struct dtv_frontend_properties)); |
149709f5 | 925 | c->delivery_system = delsys; |
50727719 AO |
926 | |
927 | c->state = DTV_CLEAR; | |
26c924fe | 928 | |
5bfaadde MCC |
929 | dprintk("%s() Clearing cache for delivery system %d\n", __func__, |
930 | c->delivery_system); | |
26c924fe | 931 | |
50727719 | 932 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 933 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
934 | c->guard_interval = GUARD_INTERVAL_AUTO; |
935 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 936 | c->symbol_rate = 0; |
50727719 AO |
937 | c->code_rate_HP = FEC_AUTO; |
938 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 939 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 940 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 941 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
942 | c->sectone = SEC_TONE_OFF; |
943 | c->pilot = PILOT_AUTO; | |
50727719 | 944 | |
a520ca97 MCC |
945 | c->isdbt_partial_reception = 0; |
946 | c->isdbt_sb_mode = 0; | |
947 | c->isdbt_sb_subchannel = 0; | |
948 | c->isdbt_sb_segment_idx = 0; | |
949 | c->isdbt_sb_segment_count = 0; | |
950 | c->isdbt_layer_enabled = 0; | |
b6e760f3 | 951 | for (i = 0; i < 3; i++) { |
50727719 AO |
952 | c->layer[i].fec = FEC_AUTO; |
953 | c->layer[i].modulation = QAM_AUTO; | |
a520ca97 MCC |
954 | c->layer[i].interleaving = 0; |
955 | c->layer[i].segment_count = 0; | |
b6e760f3 PB |
956 | } |
957 | ||
26c924fe MCC |
958 | c->isdbs_ts_id = 0; |
959 | c->dvbt2_plp_id = 0; | |
960 | ||
5bfaadde MCC |
961 | switch (c->delivery_system) { |
962 | case SYS_DVBS: | |
963 | case SYS_DVBS2: | |
964 | case SYS_TURBO: | |
965 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
966 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
967 | break; | |
968 | case SYS_ATSC: | |
969 | c->modulation = VSB_8; | |
970 | break; | |
971 | default: | |
972 | c->modulation = QAM_AUTO; | |
973 | break; | |
974 | } | |
975 | ||
b6e760f3 PB |
976 | return 0; |
977 | } | |
978 | ||
979 | #define _DTV_CMD(n, s, b) \ | |
980 | [n] = { \ | |
981 | .name = #n, \ | |
982 | .cmd = n, \ | |
983 | .set = s,\ | |
984 | .buffer = b \ | |
985 | } | |
986 | ||
ec05a642 | 987 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
988 | _DTV_CMD(DTV_TUNE, 1, 0), |
989 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
990 | |
991 | /* Set */ | |
06d3a396 MCC |
992 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
993 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
994 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
995 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
996 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
997 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
998 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
999 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
1000 | _DTV_CMD(DTV_TONE, 1, 0), | |
1001 | _DTV_CMD(DTV_PILOT, 1, 0), | |
1002 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
1003 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
1004 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
1005 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
1006 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
1007 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
1008 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
224b6642 | 1009 | _DTV_CMD(DTV_INTERLEAVING, 1, 0), |
b6e760f3 PB |
1010 | |
1011 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
1012 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
1013 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1014 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1015 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1016 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1017 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1018 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1019 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1020 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1021 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1022 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1023 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1024 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1025 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1026 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1027 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1028 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1029 | ||
98293ef3 | 1030 | _DTV_CMD(DTV_ISDBS_TS_ID, 1, 0), |
ec05a642 | 1031 | _DTV_CMD(DTV_DVBT2_PLP_ID, 1, 0), |
98293ef3 | 1032 | |
6b73eeaf | 1033 | /* Get */ |
06d3a396 MCC |
1034 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1035 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
1036 | _DTV_CMD(DTV_CODE_RATE_HP, 0, 0), | |
1037 | _DTV_CMD(DTV_CODE_RATE_LP, 0, 0), | |
1038 | _DTV_CMD(DTV_GUARD_INTERVAL, 0, 0), | |
1039 | _DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0), | |
1040 | _DTV_CMD(DTV_HIERARCHY, 0, 0), | |
224b6642 | 1041 | _DTV_CMD(DTV_INTERLEAVING, 0, 0), |
ba2780c7 MA |
1042 | |
1043 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
ca689488 MK |
1044 | |
1045 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 1, 0), | |
1046 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 1, 0), | |
1047 | ||
1048 | _DTV_CMD(DTV_ATSCMH_FIC_VER, 0, 0), | |
1049 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 0, 0), | |
1050 | _DTV_CMD(DTV_ATSCMH_NOG, 0, 0), | |
1051 | _DTV_CMD(DTV_ATSCMH_TNOG, 0, 0), | |
1052 | _DTV_CMD(DTV_ATSCMH_SGN, 0, 0), | |
1053 | _DTV_CMD(DTV_ATSCMH_PRC, 0, 0), | |
1054 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_MODE, 0, 0), | |
1055 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 0, 0), | |
1056 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_PRI, 0, 0), | |
1057 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_SEC, 0, 0), | |
1058 | _DTV_CMD(DTV_ATSCMH_SCCC_BLOCK_MODE, 0, 0), | |
1059 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_A, 0, 0), | |
1060 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), | |
1061 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), | |
1062 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), | |
6b73eeaf ST |
1063 | }; |
1064 | ||
072ce0c5 | 1065 | static void dtv_property_dump(struct dtv_property *tvp) |
6b73eeaf ST |
1066 | { |
1067 | int i; | |
1068 | ||
106ff9e0 | 1069 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
a1bc84c0 | 1070 | printk(KERN_WARNING "%s: tvp.cmd = 0x%08x undefined\n", |
4aae8efb DB |
1071 | __func__, tvp->cmd); |
1072 | return; | |
1073 | } | |
1074 | ||
a1bc84c0 ST |
1075 | dprintk("%s() tvp.cmd = 0x%08x (%s)\n" |
1076 | ,__func__ | |
6b73eeaf | 1077 | ,tvp->cmd |
56f0680a | 1078 | ,dtv_cmds[ tvp->cmd ].name); |
6b73eeaf | 1079 | |
56f0680a | 1080 | if(dtv_cmds[ tvp->cmd ].buffer) { |
6b73eeaf | 1081 | |
a1bc84c0 ST |
1082 | dprintk("%s() tvp.u.buffer.len = 0x%02x\n" |
1083 | ,__func__ | |
6b73eeaf ST |
1084 | ,tvp->u.buffer.len); |
1085 | ||
1086 | for(i = 0; i < tvp->u.buffer.len; i++) | |
a1bc84c0 ST |
1087 | dprintk("%s() tvp.u.buffer.data[0x%02x] = 0x%02x\n" |
1088 | ,__func__ | |
6b73eeaf ST |
1089 | ,i |
1090 | ,tvp->u.buffer.data[i]); | |
1091 | ||
1092 | } else | |
a1bc84c0 | 1093 | dprintk("%s() tvp.u.data = 0x%08x\n", __func__, tvp->u.data); |
6b73eeaf ST |
1094 | } |
1095 | ||
ee33c525 ST |
1096 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1097 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1098 | * it's being used for the legacy or new API, reducing code and complexity. | |
1099 | */ | |
5bfaadde MCC |
1100 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1101 | struct dtv_frontend_properties *c, | |
1102 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1103 | { |
ee33c525 ST |
1104 | c->frequency = p->frequency; |
1105 | c->inversion = p->inversion; | |
1106 | ||
5bfaadde MCC |
1107 | switch (dvbv3_type(c->delivery_system)) { |
1108 | case DVBV3_QPSK: | |
1109 | dprintk("%s() Preparing QPSK req\n", __func__); | |
ee33c525 ST |
1110 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1111 | c->fec_inner = p->u.qpsk.fec_inner; | |
1112 | break; | |
5bfaadde MCC |
1113 | case DVBV3_QAM: |
1114 | dprintk("%s() Preparing QAM req\n", __func__); | |
ee33c525 ST |
1115 | c->symbol_rate = p->u.qam.symbol_rate; |
1116 | c->fec_inner = p->u.qam.fec_inner; | |
1117 | c->modulation = p->u.qam.modulation; | |
1118 | break; | |
5bfaadde MCC |
1119 | case DVBV3_OFDM: |
1120 | dprintk("%s() Preparing OFDM req\n", __func__); | |
9a27e6a0 MCC |
1121 | switch (p->u.ofdm.bandwidth) { |
1122 | case BANDWIDTH_10_MHZ: | |
1123 | c->bandwidth_hz = 10000000; | |
1124 | break; | |
1125 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1126 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1127 | break; |
1128 | case BANDWIDTH_7_MHZ: | |
1129 | c->bandwidth_hz = 7000000; | |
1130 | break; | |
1131 | case BANDWIDTH_6_MHZ: | |
1132 | c->bandwidth_hz = 6000000; | |
1133 | break; | |
1134 | case BANDWIDTH_5_MHZ: | |
1135 | c->bandwidth_hz = 5000000; | |
1136 | break; | |
1137 | case BANDWIDTH_1_712_MHZ: | |
1138 | c->bandwidth_hz = 1712000; | |
1139 | break; | |
1140 | case BANDWIDTH_AUTO: | |
75b7f943 | 1141 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1142 | } |
1143 | ||
ee33c525 ST |
1144 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1145 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1146 | c->modulation = p->u.ofdm.constellation; | |
1147 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1148 | c->guard_interval = p->u.ofdm.guard_interval; | |
1149 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1150 | break; | |
5bfaadde MCC |
1151 | case DVBV3_ATSC: |
1152 | dprintk("%s() Preparing ATSC req\n", __func__); | |
ee33c525 | 1153 | c->modulation = p->u.vsb.modulation; |
ca689488 MK |
1154 | if (c->delivery_system == SYS_ATSCMH) |
1155 | break; | |
80a773c9 ST |
1156 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1157 | c->delivery_system = SYS_ATSC; | |
1158 | else | |
1159 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1160 | break; |
5bfaadde MCC |
1161 | case DVBV3_UNKNOWN: |
1162 | printk(KERN_ERR | |
1163 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1164 | __func__, c->delivery_system); | |
1165 | return -EINVAL; | |
ee33c525 | 1166 | } |
5bfaadde MCC |
1167 | |
1168 | return 0; | |
ee33c525 ST |
1169 | } |
1170 | ||
d5748f10 ST |
1171 | /* Ensure the cached values are set correctly in the frontend |
1172 | * legacy tuning structures, for the advanced tuning API. | |
1173 | */ | |
5bfaadde | 1174 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
a689e365 | 1175 | struct dvb_frontend_parameters *p) |
6b73eeaf | 1176 | { |
15cc2bb3 | 1177 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1178 | |
d5748f10 ST |
1179 | p->frequency = c->frequency; |
1180 | p->inversion = c->inversion; | |
6b73eeaf | 1181 | |
5bfaadde MCC |
1182 | switch (dvbv3_type(c->delivery_system)) { |
1183 | case DVBV3_UNKNOWN: | |
1184 | printk(KERN_ERR | |
1185 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1186 | __func__, c->delivery_system); | |
1187 | return -EINVAL; | |
1188 | case DVBV3_QPSK: | |
a1bc84c0 | 1189 | dprintk("%s() Preparing QPSK req\n", __func__); |
d5748f10 ST |
1190 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1191 | p->u.qpsk.fec_inner = c->fec_inner; | |
1192 | break; | |
5bfaadde | 1193 | case DVBV3_QAM: |
a1bc84c0 | 1194 | dprintk("%s() Preparing QAM req\n", __func__); |
d5748f10 ST |
1195 | p->u.qam.symbol_rate = c->symbol_rate; |
1196 | p->u.qam.fec_inner = c->fec_inner; | |
1197 | p->u.qam.modulation = c->modulation; | |
1198 | break; | |
5bfaadde | 1199 | case DVBV3_OFDM: |
a1bc84c0 | 1200 | dprintk("%s() Preparing OFDM req\n", __func__); |
5bfaadde | 1201 | |
9a27e6a0 MCC |
1202 | switch (c->bandwidth_hz) { |
1203 | case 10000000: | |
1204 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1205 | break; | |
1206 | case 8000000: | |
75b7f943 | 1207 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1208 | break; |
1209 | case 7000000: | |
1210 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1211 | break; | |
1212 | case 6000000: | |
1213 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1214 | break; | |
1215 | case 5000000: | |
1216 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1217 | break; | |
1218 | case 1712000: | |
1219 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1220 | break; | |
1221 | case 0: | |
1222 | default: | |
75b7f943 | 1223 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1224 | } |
d5748f10 ST |
1225 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1226 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1227 | p->u.ofdm.constellation = c->modulation; | |
1228 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1229 | p->u.ofdm.guard_interval = c->guard_interval; | |
1230 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1231 | break; | |
5bfaadde | 1232 | case DVBV3_ATSC: |
a1bc84c0 | 1233 | dprintk("%s() Preparing VSB req\n", __func__); |
d5748f10 ST |
1234 | p->u.vsb.modulation = c->modulation; |
1235 | break; | |
1236 | } | |
5bfaadde | 1237 | return 0; |
6b73eeaf ST |
1238 | } |
1239 | ||
a689e365 MCC |
1240 | /** |
1241 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1242 | * @fe: struct dvb_frontend pointer | |
1243 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1244 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1245 | * | |
1246 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1247 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1248 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1249 | */ | |
1250 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
a689e365 MCC |
1251 | struct dvb_frontend_parameters *p_out) |
1252 | { | |
a689e365 MCC |
1253 | int r; |
1254 | ||
a689e365 | 1255 | if (fe->ops.get_frontend) { |
7c61d80a | 1256 | r = fe->ops.get_frontend(fe); |
a689e365 MCC |
1257 | if (unlikely(r < 0)) |
1258 | return r; | |
7c61d80a | 1259 | if (p_out) |
a689e365 MCC |
1260 | dtv_property_legacy_params_sync(fe, p_out); |
1261 | return 0; | |
1262 | } | |
1263 | ||
7c61d80a | 1264 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1265 | return 0; |
a689e365 MCC |
1266 | } |
1267 | ||
16ef8def | 1268 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1269 | unsigned int cmd, void *parg); |
16ef8def | 1270 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1271 | unsigned int cmd, void *parg); |
1272 | ||
072ce0c5 | 1273 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1274 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1275 | struct dtv_property *tvp, |
16ef8def | 1276 | struct file *file) |
363429a0 | 1277 | { |
5bfaadde | 1278 | int r, ncaps; |
bfbf2dae | 1279 | |
363429a0 | 1280 | switch(tvp->cmd) { |
ba2780c7 | 1281 | case DTV_ENUM_DELSYS: |
5bfaadde MCC |
1282 | ncaps = 0; |
1283 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1284 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; | |
1285 | ncaps++; | |
1286 | } | |
1287 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1288 | break; |
363429a0 | 1289 | case DTV_FREQUENCY: |
50727719 | 1290 | tvp->u.data = c->frequency; |
363429a0 ST |
1291 | break; |
1292 | case DTV_MODULATION: | |
50727719 | 1293 | tvp->u.data = c->modulation; |
363429a0 | 1294 | break; |
75b7f943 | 1295 | case DTV_BANDWIDTH_HZ: |
50727719 | 1296 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1297 | break; |
1298 | case DTV_INVERSION: | |
50727719 | 1299 | tvp->u.data = c->inversion; |
363429a0 ST |
1300 | break; |
1301 | case DTV_SYMBOL_RATE: | |
50727719 | 1302 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1303 | break; |
1304 | case DTV_INNER_FEC: | |
50727719 | 1305 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1306 | break; |
1307 | case DTV_PILOT: | |
50727719 | 1308 | tvp->u.data = c->pilot; |
363429a0 ST |
1309 | break; |
1310 | case DTV_ROLLOFF: | |
50727719 | 1311 | tvp->u.data = c->rolloff; |
363429a0 ST |
1312 | break; |
1313 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1314 | tvp->u.data = c->delivery_system; |
363429a0 | 1315 | break; |
363429a0 | 1316 | case DTV_VOLTAGE: |
50727719 | 1317 | tvp->u.data = c->voltage; |
363429a0 ST |
1318 | break; |
1319 | case DTV_TONE: | |
50727719 | 1320 | tvp->u.data = c->sectone; |
363429a0 | 1321 | break; |
eacf8d8d ST |
1322 | case DTV_API_VERSION: |
1323 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1324 | break; | |
a4de91be | 1325 | case DTV_CODE_RATE_HP: |
50727719 | 1326 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1327 | break; |
1328 | case DTV_CODE_RATE_LP: | |
50727719 | 1329 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1330 | break; |
b87625f0 | 1331 | case DTV_GUARD_INTERVAL: |
50727719 | 1332 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1333 | break; |
1334 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1335 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1336 | break; |
ef526f42 | 1337 | case DTV_HIERARCHY: |
50727719 | 1338 | tvp->u.data = c->hierarchy; |
ef526f42 | 1339 | break; |
224b6642 AP |
1340 | case DTV_INTERLEAVING: |
1341 | tvp->u.data = c->interleaving; | |
1342 | break; | |
b6e760f3 PB |
1343 | |
1344 | /* ISDB-T Support here */ | |
1345 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1346 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1347 | break; |
1348 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1349 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1350 | break; |
1351 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1352 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1353 | break; |
1354 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1355 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1356 | break; |
1357 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1358 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1359 | break; |
e7b7949a | 1360 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1361 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1362 | break; |
b6e760f3 | 1363 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1364 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1365 | break; |
1366 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1367 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1368 | break; |
1369 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1370 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1371 | break; |
1372 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1373 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1374 | break; |
1375 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1376 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1377 | break; |
1378 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1379 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1380 | break; |
1381 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1382 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1383 | break; |
1384 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1385 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1386 | break; |
1387 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1388 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1389 | break; |
1390 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1391 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1392 | break; |
1393 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1394 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1395 | break; |
1396 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1397 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1398 | break; |
98293ef3 | 1399 | case DTV_ISDBS_TS_ID: |
50727719 | 1400 | tvp->u.data = c->isdbs_ts_id; |
98293ef3 | 1401 | break; |
94d56ffa | 1402 | case DTV_DVBT2_PLP_ID: |
50727719 | 1403 | tvp->u.data = c->dvbt2_plp_id; |
94d56ffa | 1404 | break; |
ca689488 MK |
1405 | |
1406 | /* ATSC-MH */ | |
1407 | case DTV_ATSCMH_FIC_VER: | |
1408 | tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver; | |
1409 | break; | |
1410 | case DTV_ATSCMH_PARADE_ID: | |
1411 | tvp->u.data = fe->dtv_property_cache.atscmh_parade_id; | |
1412 | break; | |
1413 | case DTV_ATSCMH_NOG: | |
1414 | tvp->u.data = fe->dtv_property_cache.atscmh_nog; | |
1415 | break; | |
1416 | case DTV_ATSCMH_TNOG: | |
1417 | tvp->u.data = fe->dtv_property_cache.atscmh_tnog; | |
1418 | break; | |
1419 | case DTV_ATSCMH_SGN: | |
1420 | tvp->u.data = fe->dtv_property_cache.atscmh_sgn; | |
1421 | break; | |
1422 | case DTV_ATSCMH_PRC: | |
1423 | tvp->u.data = fe->dtv_property_cache.atscmh_prc; | |
1424 | break; | |
1425 | case DTV_ATSCMH_RS_FRAME_MODE: | |
1426 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_mode; | |
1427 | break; | |
1428 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1429 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_ensemble; | |
1430 | break; | |
1431 | case DTV_ATSCMH_RS_CODE_MODE_PRI: | |
1432 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_pri; | |
1433 | break; | |
1434 | case DTV_ATSCMH_RS_CODE_MODE_SEC: | |
1435 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_sec; | |
1436 | break; | |
1437 | case DTV_ATSCMH_SCCC_BLOCK_MODE: | |
1438 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_block_mode; | |
1439 | break; | |
1440 | case DTV_ATSCMH_SCCC_CODE_MODE_A: | |
1441 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_a; | |
1442 | break; | |
1443 | case DTV_ATSCMH_SCCC_CODE_MODE_B: | |
1444 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_b; | |
1445 | break; | |
1446 | case DTV_ATSCMH_SCCC_CODE_MODE_C: | |
1447 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_c; | |
1448 | break; | |
1449 | case DTV_ATSCMH_SCCC_CODE_MODE_D: | |
1450 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; | |
1451 | break; | |
ca689488 | 1452 | |
363429a0 | 1453 | default: |
aff8ab5c | 1454 | return -EINVAL; |
363429a0 ST |
1455 | } |
1456 | ||
e23d9ae3 AO |
1457 | /* Allow the frontend to override outgoing properties */ |
1458 | if (fe->ops.get_property) { | |
1459 | r = fe->ops.get_property(fe, tvp); | |
1460 | if (r < 0) | |
1461 | return r; | |
1462 | } | |
1463 | ||
639544d7 MCC |
1464 | dtv_property_dump(tvp); |
1465 | ||
aff8ab5c | 1466 | return 0; |
363429a0 ST |
1467 | } |
1468 | ||
5bfaadde MCC |
1469 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1470 | ||
04be0f76 MCC |
1471 | static bool is_dvbv3_delsys(u32 delsys) |
1472 | { | |
1473 | bool status; | |
1474 | ||
1475 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || | |
1476 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
1477 | ||
1478 | return status; | |
1479 | } | |
1480 | ||
1481 | static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system) | |
1482 | { | |
1483 | int ncaps, i; | |
1484 | u32 delsys = SYS_UNDEFINED; | |
1485 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1486 | enum dvbv3_emulation_type type; | |
1487 | ||
f4b1952a MCC |
1488 | /* |
1489 | * It was reported that some old DVBv5 applications were | |
1490 | * filling delivery_system with SYS_UNDEFINED. If this happens, | |
1491 | * assume that the application wants to use the first supported | |
1492 | * delivery system. | |
1493 | */ | |
1494 | if (c->delivery_system == SYS_UNDEFINED) | |
1495 | c->delivery_system = fe->ops.delsys[0]; | |
1496 | ||
04be0f76 MCC |
1497 | if (desired_system == SYS_UNDEFINED) { |
1498 | /* | |
1499 | * A DVBv3 call doesn't know what's the desired system. | |
37fa53c6 MCC |
1500 | * Also, DVBv3 applications don't know that ops.info->type |
1501 | * could be changed, and they simply dies when it doesn't | |
1502 | * match. | |
1503 | * So, don't change the current delivery system, as it | |
1504 | * may be trying to do the wrong thing, like setting an | |
1505 | * ISDB-T frontend as DVB-T. Instead, find the closest | |
1506 | * DVBv3 system that matches the delivery system. | |
04be0f76 MCC |
1507 | */ |
1508 | if (is_dvbv3_delsys(c->delivery_system)) { | |
1509 | dprintk("%s() Using delivery system to %d\n", | |
1510 | __func__, c->delivery_system); | |
1511 | return 0; | |
1512 | } | |
1513 | type = dvbv3_type(c->delivery_system); | |
1514 | switch (type) { | |
1515 | case DVBV3_QPSK: | |
37fa53c6 | 1516 | desired_system = SYS_DVBS; |
04be0f76 MCC |
1517 | break; |
1518 | case DVBV3_QAM: | |
37fa53c6 | 1519 | desired_system = SYS_DVBC_ANNEX_A; |
04be0f76 MCC |
1520 | break; |
1521 | case DVBV3_ATSC: | |
37fa53c6 | 1522 | desired_system = SYS_ATSC; |
04be0f76 MCC |
1523 | break; |
1524 | case DVBV3_OFDM: | |
37fa53c6 | 1525 | desired_system = SYS_DVBT; |
04be0f76 MCC |
1526 | break; |
1527 | default: | |
1528 | dprintk("%s(): This frontend doesn't support DVBv3 calls\n", | |
1529 | __func__); | |
1530 | return -EINVAL; | |
1531 | } | |
3626479e MCC |
1532 | /* |
1533 | * Get a delivery system that is compatible with DVBv3 | |
1534 | * NOTE: in order for this to work with softwares like Kaffeine that | |
1535 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to | |
1536 | * DVB-S, drivers that support both should put the SYS_DVBS entry | |
1537 | * before the SYS_DVBS2, otherwise it won't switch back to DVB-S. | |
1538 | * The real fix is that userspace applications should not use DVBv3 | |
1539 | * and not trust on calling FE_SET_FRONTEND to switch the delivery | |
1540 | * system. | |
1541 | */ | |
1542 | ncaps = 0; | |
1543 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1544 | if (fe->ops.delsys[ncaps] == desired_system) { | |
1545 | delsys = desired_system; | |
1546 | break; | |
1547 | } | |
1548 | ncaps++; | |
1549 | } | |
1550 | if (delsys == SYS_UNDEFINED) { | |
1551 | dprintk("%s() Couldn't find a delivery system that matches %d\n", | |
1552 | __func__, desired_system); | |
1553 | } | |
04be0f76 MCC |
1554 | } else { |
1555 | /* | |
37fa53c6 MCC |
1556 | * This is a DVBv5 call. So, it likely knows the supported |
1557 | * delivery systems. | |
04be0f76 | 1558 | */ |
37fa53c6 MCC |
1559 | |
1560 | /* Check if the desired delivery system is supported */ | |
04be0f76 MCC |
1561 | ncaps = 0; |
1562 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1563 | if (fe->ops.delsys[ncaps] == desired_system) { | |
1564 | c->delivery_system = desired_system; | |
1565 | dprintk("%s() Changing delivery system to %d\n", | |
1566 | __func__, desired_system); | |
1567 | return 0; | |
1568 | } | |
6c4b78cb | 1569 | ncaps++; |
04be0f76 MCC |
1570 | } |
1571 | type = dvbv3_type(desired_system); | |
1572 | ||
1573 | /* | |
1574 | * The delivery system is not supported. See if it can be | |
1575 | * emulated. | |
1576 | * The emulation only works if the desired system is one of the | |
1577 | * DVBv3 delivery systems | |
1578 | */ | |
1579 | if (!is_dvbv3_delsys(desired_system)) { | |
1580 | dprintk("%s() can't use a DVBv3 FE_SET_FRONTEND call on this frontend\n", | |
1581 | __func__); | |
1582 | return -EINVAL; | |
1583 | } | |
1584 | ||
1585 | /* | |
1586 | * Get the last non-DVBv3 delivery system that has the same type | |
1587 | * of the desired system | |
1588 | */ | |
1589 | ncaps = 0; | |
1590 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1591 | if ((dvbv3_type(fe->ops.delsys[ncaps]) == type) && | |
1592 | !is_dvbv3_delsys(fe->ops.delsys[ncaps])) | |
1593 | delsys = fe->ops.delsys[ncaps]; | |
1594 | ncaps++; | |
1595 | } | |
1596 | /* There's nothing compatible with the desired delivery system */ | |
1597 | if (delsys == SYS_UNDEFINED) { | |
1598 | dprintk("%s() Incompatible DVBv3 FE_SET_FRONTEND call for this frontend\n", | |
1599 | __func__); | |
1600 | return -EINVAL; | |
1601 | } | |
04be0f76 MCC |
1602 | } |
1603 | ||
3626479e MCC |
1604 | c->delivery_system = delsys; |
1605 | ||
04be0f76 | 1606 | /* |
37fa53c6 MCC |
1607 | * The DVBv3 or DVBv5 call is requesting a different system. So, |
1608 | * emulation is needed. | |
1609 | * | |
224b6642 | 1610 | * Emulate newer delivery systems like ISDBT, DVBT and DTMB |
04be0f76 MCC |
1611 | * for older DVBv5 applications. The emulation will try to use |
1612 | * the auto mode for most things, and will assume that the desired | |
1613 | * delivery system is the last one at the ops.delsys[] array | |
1614 | */ | |
1615 | dprintk("%s() Using delivery system %d emulated as if it were a %d\n", | |
1616 | __func__, delsys, desired_system); | |
1617 | ||
1618 | /* | |
a520ca97 MCC |
1619 | * For now, handles ISDB-T calls. More code may be needed here for the |
1620 | * other emulated stuff | |
04be0f76 MCC |
1621 | */ |
1622 | if (type == DVBV3_OFDM) { | |
a520ca97 MCC |
1623 | if (c->delivery_system == SYS_ISDBT) { |
1624 | dprintk("%s() Using defaults for SYS_ISDBT\n", | |
1625 | __func__); | |
1626 | if (!c->bandwidth_hz) | |
1627 | c->bandwidth_hz = 6000000; | |
1628 | ||
1629 | c->isdbt_partial_reception = 0; | |
1630 | c->isdbt_sb_mode = 0; | |
1631 | c->isdbt_sb_subchannel = 0; | |
1632 | c->isdbt_sb_segment_idx = 0; | |
1633 | c->isdbt_sb_segment_count = 0; | |
1634 | c->isdbt_layer_enabled = 0; | |
1635 | for (i = 0; i < 3; i++) { | |
1636 | c->layer[i].fec = FEC_AUTO; | |
1637 | c->layer[i].modulation = QAM_AUTO; | |
1638 | c->layer[i].interleaving = 0; | |
1639 | c->layer[i].segment_count = 0; | |
1640 | } | |
04be0f76 MCC |
1641 | } |
1642 | } | |
9474c5e6 MCC |
1643 | dprintk("change delivery system on cache to %d\n", c->delivery_system); |
1644 | ||
04be0f76 MCC |
1645 | return 0; |
1646 | } | |
1647 | ||
072ce0c5 MCC |
1648 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1649 | struct dtv_property *tvp, | |
072ce0c5 | 1650 | struct file *file) |
6b73eeaf ST |
1651 | { |
1652 | int r = 0; | |
50727719 | 1653 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1654 | |
bfbf2dae | 1655 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1656 | if (fe->ops.set_property) { |
bfbf2dae | 1657 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1658 | if (r < 0) |
1659 | return r; | |
1660 | } | |
bfbf2dae | 1661 | |
6b73eeaf | 1662 | switch(tvp->cmd) { |
e7fee0f3 | 1663 | case DTV_CLEAR: |
5bfaadde MCC |
1664 | /* |
1665 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1666 | * not effect hardware. |
1667 | */ | |
b6e760f3 | 1668 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1669 | break; |
e7fee0f3 | 1670 | case DTV_TUNE: |
6b73eeaf | 1671 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1672 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1673 | * ioctl. | |
6b73eeaf | 1674 | */ |
50727719 | 1675 | c->state = tvp->cmd; |
a1bc84c0 | 1676 | dprintk("%s() Finalised property cache\n", __func__); |
d5748f10 | 1677 | |
5bfaadde | 1678 | r = dtv_set_frontend(fe); |
6b73eeaf | 1679 | break; |
363429a0 | 1680 | case DTV_FREQUENCY: |
50727719 | 1681 | c->frequency = tvp->u.data; |
6b73eeaf | 1682 | break; |
363429a0 | 1683 | case DTV_MODULATION: |
50727719 | 1684 | c->modulation = tvp->u.data; |
6b73eeaf | 1685 | break; |
75b7f943 | 1686 | case DTV_BANDWIDTH_HZ: |
50727719 | 1687 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1688 | break; |
363429a0 | 1689 | case DTV_INVERSION: |
50727719 | 1690 | c->inversion = tvp->u.data; |
6b73eeaf | 1691 | break; |
363429a0 | 1692 | case DTV_SYMBOL_RATE: |
50727719 | 1693 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1694 | break; |
363429a0 | 1695 | case DTV_INNER_FEC: |
50727719 | 1696 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1697 | break; |
363429a0 | 1698 | case DTV_PILOT: |
50727719 | 1699 | c->pilot = tvp->u.data; |
6b73eeaf | 1700 | break; |
363429a0 | 1701 | case DTV_ROLLOFF: |
50727719 | 1702 | c->rolloff = tvp->u.data; |
6b73eeaf | 1703 | break; |
363429a0 | 1704 | case DTV_DELIVERY_SYSTEM: |
04be0f76 | 1705 | r = set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1706 | break; |
363429a0 | 1707 | case DTV_VOLTAGE: |
50727719 | 1708 | c->voltage = tvp->u.data; |
16ef8def | 1709 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1710 | (void *)c->voltage); |
13c97bf5 | 1711 | break; |
363429a0 | 1712 | case DTV_TONE: |
50727719 | 1713 | c->sectone = tvp->u.data; |
16ef8def | 1714 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1715 | (void *)c->sectone); |
13c97bf5 | 1716 | break; |
a4de91be | 1717 | case DTV_CODE_RATE_HP: |
50727719 | 1718 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1719 | break; |
1720 | case DTV_CODE_RATE_LP: | |
50727719 | 1721 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1722 | break; |
b87625f0 | 1723 | case DTV_GUARD_INTERVAL: |
50727719 | 1724 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1725 | break; |
1726 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1727 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1728 | break; |
ef526f42 | 1729 | case DTV_HIERARCHY: |
50727719 | 1730 | c->hierarchy = tvp->u.data; |
ef526f42 | 1731 | break; |
224b6642 AP |
1732 | case DTV_INTERLEAVING: |
1733 | c->interleaving = tvp->u.data; | |
1734 | break; | |
b6e760f3 PB |
1735 | |
1736 | /* ISDB-T Support here */ | |
1737 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1738 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1739 | break; |
1740 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1741 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1742 | break; |
1743 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1744 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1745 | break; |
1746 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1747 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1748 | break; |
1749 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1750 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1751 | break; |
e7b7949a | 1752 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1753 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1754 | break; |
b6e760f3 | 1755 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1756 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1757 | break; |
1758 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1759 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1760 | break; |
1761 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1762 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1763 | break; |
1764 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1765 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1766 | break; |
1767 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1768 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1769 | break; |
1770 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1771 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1772 | break; |
1773 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1774 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1775 | break; |
1776 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1777 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1778 | break; |
1779 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1780 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1781 | break; |
1782 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1783 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1784 | break; |
1785 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1786 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1787 | break; |
1788 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1789 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1790 | break; |
98293ef3 | 1791 | case DTV_ISDBS_TS_ID: |
50727719 | 1792 | c->isdbs_ts_id = tvp->u.data; |
94d56ffa AO |
1793 | break; |
1794 | case DTV_DVBT2_PLP_ID: | |
50727719 | 1795 | c->dvbt2_plp_id = tvp->u.data; |
98293ef3 | 1796 | break; |
ca689488 MK |
1797 | |
1798 | /* ATSC-MH */ | |
1799 | case DTV_ATSCMH_PARADE_ID: | |
1800 | fe->dtv_property_cache.atscmh_parade_id = tvp->u.data; | |
1801 | break; | |
1802 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1803 | fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; | |
1804 | break; | |
1805 | ||
363429a0 | 1806 | default: |
aff8ab5c | 1807 | return -EINVAL; |
6b73eeaf ST |
1808 | } |
1809 | ||
13c97bf5 | 1810 | return r; |
6b73eeaf ST |
1811 | } |
1812 | ||
16ef8def | 1813 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1814 | unsigned int cmd, void *parg) |
1815 | { | |
1816 | struct dvb_device *dvbdev = file->private_data; | |
1817 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1818 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1819 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
1820 | int err = -EOPNOTSUPP; |
1821 | ||
fb8253ba | 1822 | dprintk("%s (%d)\n", __func__, _IOC_NR(cmd)); |
1da177e4 | 1823 | |
e36309f5 | 1824 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
1825 | return -ENODEV; |
1826 | ||
1827 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1828 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
1829 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) | |
1830 | return -EPERM; | |
1831 | ||
1832 | if (down_interruptible (&fepriv->sem)) | |
1833 | return -ERESTARTSYS; | |
1834 | ||
13c97bf5 | 1835 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1836 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1837 | else { |
50727719 | 1838 | c->state = DTV_UNDEFINED; |
16ef8def | 1839 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1840 | } |
13c97bf5 ST |
1841 | |
1842 | up(&fepriv->sem); | |
1843 | return err; | |
1844 | } | |
1845 | ||
16ef8def | 1846 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1847 | unsigned int cmd, void *parg) |
1848 | { | |
1849 | struct dvb_device *dvbdev = file->private_data; | |
1850 | struct dvb_frontend *fe = dvbdev->priv; | |
51dcb19a | 1851 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
50727719 | 1852 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1853 | int err = 0; |
e7fee0f3 ST |
1854 | |
1855 | struct dtv_properties *tvps = NULL; | |
1856 | struct dtv_property *tvp = NULL; | |
1857 | int i; | |
13c97bf5 ST |
1858 | |
1859 | dprintk("%s\n", __func__); | |
1860 | ||
6b73eeaf | 1861 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1862 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1863 | |
a1bc84c0 ST |
1864 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1865 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1866 | |
1867 | /* Put an arbitrary limit on the number of messages that can | |
1868 | * be sent at once */ | |
6068f506 | 1869 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1870 | return -EINVAL; |
1871 | ||
6e3924aa | 1872 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1873 | if (!tvp) { |
1874 | err = -ENOMEM; | |
1875 | goto out; | |
6b73eeaf ST |
1876 | } |
1877 | ||
e7fee0f3 ST |
1878 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1879 | err = -EFAULT; | |
1880 | goto out; | |
1881 | } | |
1882 | ||
d48cb402 | 1883 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1884 | err = dtv_property_process_set(fe, tvp + i, file); |
1885 | if (err < 0) | |
1886 | goto out; | |
1887 | (tvp + i)->result = err; | |
d48cb402 | 1888 | } |
e7fee0f3 | 1889 | |
50727719 | 1890 | if (c->state == DTV_TUNE) |
a1bc84c0 | 1891 | dprintk("%s() Property cache is full, tuning\n", __func__); |
bfbf2dae | 1892 | |
363429a0 ST |
1893 | } else |
1894 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1895 | tvps = (struct dtv_properties __user *)parg; |
1896 | ||
a1bc84c0 ST |
1897 | dprintk("%s() properties.num = %d\n", __func__, tvps->num); |
1898 | dprintk("%s() properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1899 | |
1900 | /* Put an arbitrary limit on the number of messages that can | |
1901 | * be sent at once */ | |
6068f506 | 1902 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1903 | return -EINVAL; |
1904 | ||
6e3924aa | 1905 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1906 | if (!tvp) { |
1907 | err = -ENOMEM; | |
1908 | goto out; | |
1909 | } | |
1910 | ||
1911 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1912 | err = -EFAULT; | |
1913 | goto out; | |
1914 | } | |
1915 | ||
a689e365 MCC |
1916 | /* |
1917 | * Fills the cache out struct with the cache contents, plus | |
51dcb19a MCC |
1918 | * the data retrieved from get_frontend, if the frontend |
1919 | * is not idle. Otherwise, returns the cached content | |
a689e365 | 1920 | */ |
51dcb19a MCC |
1921 | if (fepriv->state != FESTATE_IDLE) { |
1922 | err = dtv_get_frontend(fe, NULL); | |
1923 | if (err < 0) | |
1924 | goto out; | |
1925 | } | |
d48cb402 | 1926 | for (i = 0; i < tvps->num; i++) { |
7c61d80a | 1927 | err = dtv_property_process_get(fe, c, tvp + i, file); |
aff8ab5c AO |
1928 | if (err < 0) |
1929 | goto out; | |
1930 | (tvp + i)->result = err; | |
d48cb402 | 1931 | } |
363429a0 ST |
1932 | |
1933 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
1934 | err = -EFAULT; | |
1935 | goto out; | |
1936 | } | |
1937 | ||
363429a0 ST |
1938 | } else |
1939 | err = -EOPNOTSUPP; | |
1940 | ||
e7fee0f3 ST |
1941 | out: |
1942 | kfree(tvp); | |
13c97bf5 ST |
1943 | return err; |
1944 | } | |
1945 | ||
5bfaadde | 1946 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 1947 | { |
9682cea2 MCC |
1948 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1949 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1950 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 1951 | u32 rolloff = 0; |
9682cea2 | 1952 | |
5bfaadde MCC |
1953 | if (dvb_frontend_check_parameters(fe) < 0) |
1954 | return -EINVAL; | |
9682cea2 | 1955 | |
556a0442 CR |
1956 | /* |
1957 | * Initialize output parameters to match the values given by | |
1958 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
1959 | * with status = 0, which copies output parameters to userspace. | |
1960 | */ | |
1961 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); | |
1962 | ||
5bfaadde MCC |
1963 | /* |
1964 | * Be sure that the bandwidth will be filled for all | |
1965 | * non-satellite systems, as tuners need to know what | |
1966 | * low pass/Nyquist half filter should be applied, in | |
1967 | * order to avoid inter-channel noise. | |
1968 | * | |
1969 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
1970 | * ATSC and DVB-C don't set, so, the core should fill it. | |
1971 | * | |
1972 | * On DVB-C Annex A and C, the bandwidth is a function of | |
1973 | * the roll-off and symbol rate. Annex B defines different | |
1974 | * roll-off factors depending on the modulation. Fortunately, | |
1975 | * Annex B is only used with 6MHz, so there's no need to | |
1976 | * calculate it. | |
1977 | * | |
1978 | * While not officially supported, a side effect of handling it at | |
1979 | * the cache level is that a program could retrieve the bandwidth | |
1980 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
1981 | */ | |
1982 | switch (c->delivery_system) { | |
1983 | case SYS_ATSC: | |
1984 | case SYS_DVBC_ANNEX_B: | |
1985 | c->bandwidth_hz = 6000000; | |
1986 | break; | |
1987 | case SYS_DVBC_ANNEX_A: | |
1988 | rolloff = 115; | |
1989 | break; | |
1990 | case SYS_DVBC_ANNEX_C: | |
1991 | rolloff = 113; | |
1992 | break; | |
1993 | default: | |
1994 | break; | |
1995 | } | |
1996 | if (rolloff) | |
1997 | c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; | |
9682cea2 MCC |
1998 | |
1999 | /* force auto frequency inversion if requested */ | |
5bfaadde | 2000 | if (dvb_force_auto_inversion) |
9682cea2 | 2001 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
2002 | |
2003 | /* | |
2004 | * without hierarchical coding code_rate_LP is irrelevant, | |
2005 | * so we tolerate the otherwise invalid FEC_NONE setting | |
2006 | */ | |
2007 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
2008 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
2009 | |
2010 | /* get frontend-specific tuning settings */ | |
5bfaadde | 2011 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
2012 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
2013 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
2014 | fepriv->max_drift = fetunesettings.max_drift; | |
2015 | fepriv->step_size = fetunesettings.step_size; | |
2016 | } else { | |
2017 | /* default values */ | |
5bfaadde | 2018 | switch (c->delivery_system) { |
910a5f2e MCC |
2019 | case SYS_DVBS: |
2020 | case SYS_DVBS2: | |
2021 | case SYS_ISDBS: | |
2022 | case SYS_TURBO: | |
5bfaadde MCC |
2023 | case SYS_DVBC_ANNEX_A: |
2024 | case SYS_DVBC_ANNEX_C: | |
2025 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
2026 | fepriv->step_size = c->symbol_rate / 16000; |
2027 | fepriv->max_drift = c->symbol_rate / 2000; | |
2028 | break; | |
5bfaadde MCC |
2029 | case SYS_DVBT: |
2030 | case SYS_DVBT2: | |
2031 | case SYS_ISDBT: | |
224b6642 | 2032 | case SYS_DTMB: |
5bfaadde | 2033 | fepriv->min_delay = HZ / 20; |
9682cea2 MCC |
2034 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
2035 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
2036 | break; | |
5bfaadde MCC |
2037 | default: |
2038 | /* | |
2039 | * FIXME: This sounds wrong! if freqency_stepsize is | |
2040 | * defined by the frontend, why not use it??? | |
2041 | */ | |
2042 | fepriv->min_delay = HZ / 20; | |
2043 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
2044 | fepriv->max_drift = 0; |
2045 | break; | |
2046 | } | |
2047 | } | |
2048 | if (dvb_override_tune_delay > 0) | |
2049 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
2050 | ||
2051 | fepriv->state = FESTATE_RETUNE; | |
2052 | ||
2053 | /* Request the search algorithm to search */ | |
2054 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
2055 | ||
2056 | dvb_frontend_clear_events(fe); | |
2057 | dvb_frontend_add_event(fe, 0); | |
2058 | dvb_frontend_wakeup(fe); | |
2059 | fepriv->status = 0; | |
2060 | ||
2061 | return 0; | |
2062 | } | |
2063 | ||
2064 | ||
16ef8def | 2065 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
2066 | unsigned int cmd, void *parg) |
2067 | { | |
2068 | struct dvb_device *dvbdev = file->private_data; | |
2069 | struct dvb_frontend *fe = dvbdev->priv; | |
2070 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 2071 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
9adf6132 | 2072 | int err = -EOPNOTSUPP; |
13c97bf5 | 2073 | |
1da177e4 LT |
2074 | switch (cmd) { |
2075 | case FE_GET_INFO: { | |
0c53c70f | 2076 | struct dvb_frontend_info* info = parg; |
9474c5e6 | 2077 | |
dea74869 | 2078 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 2079 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 2080 | |
5bfaadde MCC |
2081 | /* |
2082 | * Associate the 4 delivery systems supported by DVBv3 | |
2083 | * API with their DVBv5 counterpart. For the other standards, | |
2084 | * use the closest type, assuming that it would hopefully | |
2085 | * work with a DVBv3 application. | |
2086 | * It should be noticed that, on multi-frontend devices with | |
2087 | * different types (terrestrial and cable, for example), | |
2088 | * a pure DVBv3 application won't be able to use all delivery | |
2089 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
2090 | * system should be enough for making it work. | |
2091 | */ | |
2092 | switch (dvbv3_type(c->delivery_system)) { | |
2093 | case DVBV3_QPSK: | |
9474c5e6 | 2094 | info->type = FE_QPSK; |
5bfaadde MCC |
2095 | break; |
2096 | case DVBV3_ATSC: | |
9474c5e6 | 2097 | info->type = FE_ATSC; |
5bfaadde MCC |
2098 | break; |
2099 | case DVBV3_QAM: | |
9474c5e6 | 2100 | info->type = FE_QAM; |
5bfaadde MCC |
2101 | break; |
2102 | case DVBV3_OFDM: | |
9474c5e6 | 2103 | info->type = FE_OFDM; |
5bfaadde MCC |
2104 | break; |
2105 | default: | |
2106 | printk(KERN_ERR | |
2107 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
2108 | __func__, c->delivery_system); | |
2109 | fe->ops.info.type = FE_OFDM; | |
2110 | } | |
9474c5e6 MCC |
2111 | dprintk("current delivery system on cache: %d, V3 type: %d\n", |
2112 | c->delivery_system, fe->ops.info.type); | |
5bfaadde | 2113 | |
1da177e4 LT |
2114 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't |
2115 | * do it, it is done for it. */ | |
2116 | info->caps |= FE_CAN_INVERSION_AUTO; | |
2117 | err = 0; | |
2118 | break; | |
2119 | } | |
2120 | ||
6757ccc5 PB |
2121 | case FE_READ_STATUS: { |
2122 | fe_status_t* status = parg; | |
2123 | ||
25985edc | 2124 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2125 | * that user get signal state from previous tuning */ |
01886255 JG |
2126 | if (fepriv->state == FESTATE_RETUNE || |
2127 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2128 | err=0; |
2129 | *status = 0; | |
2130 | break; | |
2131 | } | |
2132 | ||
dea74869 PB |
2133 | if (fe->ops.read_status) |
2134 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2135 | break; |
6757ccc5 | 2136 | } |
1da177e4 | 2137 | case FE_READ_BER: |
dea74869 PB |
2138 | if (fe->ops.read_ber) |
2139 | err = fe->ops.read_ber(fe, (__u32*) parg); | |
1da177e4 LT |
2140 | break; |
2141 | ||
2142 | case FE_READ_SIGNAL_STRENGTH: | |
dea74869 PB |
2143 | if (fe->ops.read_signal_strength) |
2144 | err = fe->ops.read_signal_strength(fe, (__u16*) parg); | |
1da177e4 LT |
2145 | break; |
2146 | ||
2147 | case FE_READ_SNR: | |
dea74869 PB |
2148 | if (fe->ops.read_snr) |
2149 | err = fe->ops.read_snr(fe, (__u16*) parg); | |
1da177e4 LT |
2150 | break; |
2151 | ||
2152 | case FE_READ_UNCORRECTED_BLOCKS: | |
dea74869 PB |
2153 | if (fe->ops.read_ucblocks) |
2154 | err = fe->ops.read_ucblocks(fe, (__u32*) parg); | |
1da177e4 LT |
2155 | break; |
2156 | ||
2157 | ||
2158 | case FE_DISEQC_RESET_OVERLOAD: | |
dea74869 PB |
2159 | if (fe->ops.diseqc_reset_overload) { |
2160 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2161 | fepriv->state = FESTATE_DISEQC; |
2162 | fepriv->status = 0; | |
2163 | } | |
2164 | break; | |
2165 | ||
2166 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
2167 | if (fe->ops.diseqc_send_master_cmd) { |
2168 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
2169 | fepriv->state = FESTATE_DISEQC; |
2170 | fepriv->status = 0; | |
2171 | } | |
2172 | break; | |
2173 | ||
2174 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
2175 | if (fe->ops.diseqc_send_burst) { |
2176 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
2177 | fepriv->state = FESTATE_DISEQC; |
2178 | fepriv->status = 0; | |
2179 | } | |
2180 | break; | |
2181 | ||
2182 | case FE_SET_TONE: | |
dea74869 PB |
2183 | if (fe->ops.set_tone) { |
2184 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 2185 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
2186 | fepriv->state = FESTATE_DISEQC; |
2187 | fepriv->status = 0; | |
2188 | } | |
2189 | break; | |
2190 | ||
2191 | case FE_SET_VOLTAGE: | |
dea74869 PB |
2192 | if (fe->ops.set_voltage) { |
2193 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 2194 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
2195 | fepriv->state = FESTATE_DISEQC; |
2196 | fepriv->status = 0; | |
2197 | } | |
2198 | break; | |
2199 | ||
2200 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
2201 | if (fe->ops.dishnetwork_send_legacy_command) { |
2202 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
2203 | fepriv->state = FESTATE_DISEQC; |
2204 | fepriv->status = 0; | |
dea74869 | 2205 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2206 | /* |
2207 | * NOTE: This is a fallback condition. Some frontends | |
2208 | * (stv0299 for instance) take longer than 8msec to | |
2209 | * respond to a set_voltage command. Those switches | |
2210 | * need custom routines to switch properly. For all | |
2030c032 | 2211 | * other frontends, the following should work ok. |
83b75b04 N |
2212 | * Dish network legacy switches (as used by Dish500) |
2213 | * are controlled by sending 9-bit command words | |
2214 | * spaced 8msec apart. | |
25985edc | 2215 | * the actual command word is switch/port dependent |
83b75b04 N |
2216 | * so it is up to the userspace application to send |
2217 | * the right command. | |
2218 | * The command must always start with a '0' after | |
2219 | * initialization, so parg is 8 bits and does not | |
2220 | * include the initialization or start bit | |
2221 | */ | |
c6eb8eaf | 2222 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
2223 | struct timeval nexttime; |
2224 | struct timeval tv[10]; | |
2225 | int i; | |
2226 | u8 last = 1; | |
2227 | if (dvb_frontend_debug) | |
c6eb8eaf | 2228 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
2229 | do_gettimeofday(&nexttime); |
2230 | if (dvb_frontend_debug) | |
2231 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); | |
2232 | /* before sending a command, initialize by sending | |
2233 | * a 32ms 18V to the switch | |
2234 | */ | |
dea74869 | 2235 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2236 | dvb_frontend_sleep_until(&nexttime, 32000); |
2237 | ||
2238 | for (i = 0; i < 9; i++) { | |
2239 | if (dvb_frontend_debug) | |
2240 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 2241 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2242 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2243 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2244 | last = (last) ? 0 : 1; |
2245 | } | |
c6eb8eaf | 2246 | swcmd = swcmd >> 1; |
83b75b04 N |
2247 | if (i != 8) |
2248 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2249 | } | |
2250 | if (dvb_frontend_debug) { | |
2251 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 2252 | __func__, fe->dvb->num); |
83b75b04 N |
2253 | for (i = 1; i < 10; i++) |
2254 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
2255 | } | |
2256 | err = 0; | |
2257 | fepriv->state = FESTATE_DISEQC; | |
2258 | fepriv->status = 0; | |
1da177e4 LT |
2259 | } |
2260 | break; | |
2261 | ||
2262 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2263 | if (fe->ops.diseqc_recv_slave_reply) |
2264 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2265 | break; |
2266 | ||
2267 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2268 | if (fe->ops.enable_high_lnb_voltage) |
2269 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2270 | break; |
2271 | ||
9682cea2 | 2272 | case FE_SET_FRONTEND: |
04be0f76 MCC |
2273 | err = set_delivery_system(fe, SYS_UNDEFINED); |
2274 | if (err) | |
2275 | break; | |
2276 | ||
e399ce77 | 2277 | err = dtv_property_cache_sync(fe, c, parg); |
5bfaadde MCC |
2278 | if (err) |
2279 | break; | |
2280 | err = dtv_set_frontend(fe); | |
1da177e4 | 2281 | break; |
1da177e4 LT |
2282 | case FE_GET_EVENT: |
2283 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2284 | break; | |
2285 | ||
2286 | case FE_GET_FRONTEND: | |
e399ce77 | 2287 | err = dtv_get_frontend(fe, parg); |
1da177e4 | 2288 | break; |
36cb557a AQ |
2289 | |
2290 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 2291 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2292 | err = 0; |
36cb557a | 2293 | break; |
1da177e4 LT |
2294 | }; |
2295 | ||
1da177e4 LT |
2296 | return err; |
2297 | } | |
2298 | ||
6b73eeaf | 2299 | |
1da177e4 LT |
2300 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2301 | { | |
2302 | struct dvb_device *dvbdev = file->private_data; | |
2303 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2304 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2305 | |
46b4f7c1 | 2306 | dprintk ("%s\n", __func__); |
1da177e4 LT |
2307 | |
2308 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2309 | ||
2310 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2311 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2312 | ||
2313 | return 0; | |
2314 | } | |
2315 | ||
2316 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2317 | { | |
2318 | struct dvb_device *dvbdev = file->private_data; | |
2319 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2320 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2321 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2322 | int ret; |
2323 | ||
46b4f7c1 | 2324 | dprintk ("%s\n", __func__); |
e36309f5 MC |
2325 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
2326 | return -ENODEV; | |
1da177e4 | 2327 | |
59b1842d DB |
2328 | if (adapter->mfe_shared) { |
2329 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2330 | |
2331 | if (adapter->mfe_dvbdev == NULL) | |
2332 | adapter->mfe_dvbdev = dvbdev; | |
2333 | ||
2334 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2335 | struct dvb_device | |
2336 | *mfedev = adapter->mfe_dvbdev; | |
2337 | struct dvb_frontend | |
2338 | *mfe = mfedev->priv; | |
2339 | struct dvb_frontend_private | |
2340 | *mfepriv = mfe->frontend_priv; | |
2341 | int mferetry = (dvb_mfe_wait_time << 1); | |
2342 | ||
2343 | mutex_unlock (&adapter->mfe_lock); | |
2344 | while (mferetry-- && (mfedev->users != -1 || | |
2345 | mfepriv->thread != NULL)) { | |
2346 | if(msleep_interruptible(500)) { | |
2347 | if(signal_pending(current)) | |
2348 | return -EINTR; | |
59b1842d | 2349 | } |
6594690b DB |
2350 | } |
2351 | ||
2352 | mutex_lock (&adapter->mfe_lock); | |
2353 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2354 | mfedev = adapter->mfe_dvbdev; |
2355 | mfe = mfedev->priv; | |
2356 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2357 | if (mfedev->users != -1 || |
2358 | mfepriv->thread != NULL) { | |
2359 | mutex_unlock (&adapter->mfe_lock); | |
2360 | return -EBUSY; | |
59b1842d | 2361 | } |
6594690b | 2362 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2363 | } |
59b1842d DB |
2364 | } |
2365 | } | |
2366 | ||
48136e1e OE |
2367 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2368 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2369 | goto err0; |
2d196931 DH |
2370 | |
2371 | /* If we took control of the bus, we need to force | |
2372 | reinitialization. This is because many ts_bus_ctrl() | |
2373 | functions strobe the RESET pin on the demod, and if the | |
2374 | frontend thread already exists then the dvb_init() routine | |
2375 | won't get called (which is what usually does initial | |
2376 | register configuration). */ | |
2377 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2378 | } |
2379 | ||
48136e1e OE |
2380 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2381 | goto err1; | |
04c56d0e | 2382 | |
48136e1e | 2383 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2384 | /* normal tune mode when opened R/W */ |
2385 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2386 | fepriv->tone = -1; | |
2387 | fepriv->voltage = -1; | |
2388 | ||
1da177e4 LT |
2389 | ret = dvb_frontend_start (fe); |
2390 | if (ret) | |
48136e1e | 2391 | goto err2; |
1da177e4 LT |
2392 | |
2393 | /* empty event queue */ | |
2394 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2395 | } | |
2396 | ||
59b1842d DB |
2397 | if (adapter->mfe_shared) |
2398 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2399 | return ret; |
48136e1e OE |
2400 | |
2401 | err2: | |
2402 | dvb_generic_release(inode, file); | |
2403 | err1: | |
2404 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2405 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2406 | err0: |
2407 | if (adapter->mfe_shared) | |
2408 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2409 | return ret; |
1da177e4 LT |
2410 | } |
2411 | ||
2412 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2413 | { | |
2414 | struct dvb_device *dvbdev = file->private_data; | |
2415 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2416 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2417 | int ret; |
1da177e4 | 2418 | |
46b4f7c1 | 2419 | dprintk ("%s\n", __func__); |
1da177e4 | 2420 | |
b9d5efcc | 2421 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2422 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2423 | mb(); |
2424 | } | |
1da177e4 | 2425 | |
ca5be9cd MR |
2426 | ret = dvb_generic_release (inode, file); |
2427 | ||
48136e1e | 2428 | if (dvbdev->users == -1) { |
b9d5efcc | 2429 | wake_up(&fepriv->wait_queue); |
e36309f5 | 2430 | if (fepriv->exit != DVB_FE_NO_EXIT) { |
48136e1e OE |
2431 | fops_put(file->f_op); |
2432 | file->f_op = NULL; | |
2433 | wake_up(&dvbdev->wait_queue); | |
2434 | } | |
2435 | if (fe->ops.ts_bus_ctrl) | |
2436 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2437 | } |
48136e1e | 2438 | |
ca5be9cd | 2439 | return ret; |
1da177e4 LT |
2440 | } |
2441 | ||
784e29d2 | 2442 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2443 | .owner = THIS_MODULE, |
16ef8def | 2444 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2445 | .poll = dvb_frontend_poll, |
2446 | .open = dvb_frontend_open, | |
6038f373 AB |
2447 | .release = dvb_frontend_release, |
2448 | .llseek = noop_llseek, | |
1da177e4 LT |
2449 | }; |
2450 | ||
2451 | int dvb_register_frontend(struct dvb_adapter* dvb, | |
2452 | struct dvb_frontend* fe) | |
2453 | { | |
2454 | struct dvb_frontend_private *fepriv; | |
2455 | static const struct dvb_device dvbdev_template = { | |
2456 | .users = ~0, | |
2457 | .writers = 1, | |
2458 | .readers = (~0)-1, | |
2459 | .fops = &dvb_frontend_fops, | |
2460 | .kernel_ioctl = dvb_frontend_ioctl | |
2461 | }; | |
2462 | ||
46b4f7c1 | 2463 | dprintk ("%s\n", __func__); |
1da177e4 | 2464 | |
3593cab5 | 2465 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2466 | return -ERESTARTSYS; |
2467 | ||
7408187d | 2468 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2469 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2470 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2471 | return -ENOMEM; |
2472 | } | |
0c53c70f | 2473 | fepriv = fe->frontend_priv; |
1da177e4 | 2474 | |
a0a4714c | 2475 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2476 | init_waitqueue_head (&fepriv->wait_queue); |
2477 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2478 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2479 | fe->dvb = dvb; |
2480 | fepriv->inversion = INVERSION_OFF; | |
2481 | ||
363c35fc | 2482 | printk ("DVB: registering adapter %i frontend %i (%s)...\n", |
1da177e4 | 2483 | fe->dvb->num, |
363c35fc | 2484 | fe->id, |
dea74869 | 2485 | fe->ops.info.name); |
1da177e4 LT |
2486 | |
2487 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2488 | fe, DVB_DEVICE_FRONTEND); | |
2489 | ||
5bfaadde MCC |
2490 | /* |
2491 | * Initialize the cache to the proper values according with the | |
2492 | * first supported delivery system (ops->delsys[0]) | |
2493 | */ | |
240ab508 MCC |
2494 | |
2495 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; | |
5bfaadde MCC |
2496 | dvb_frontend_clear_cache(fe); |
2497 | ||
3593cab5 | 2498 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2499 | return 0; |
2500 | } | |
2501 | EXPORT_SYMBOL(dvb_register_frontend); | |
2502 | ||
2503 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2504 | { | |
0c53c70f | 2505 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
46b4f7c1 | 2506 | dprintk ("%s\n", __func__); |
1da177e4 | 2507 | |
57861b43 | 2508 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2509 | dvb_frontend_stop (fe); |
57861b43 MR |
2510 | mutex_unlock(&frontend_mutex); |
2511 | ||
2512 | if (fepriv->dvbdev->users < -1) | |
2513 | wait_event(fepriv->dvbdev->wait_queue, | |
2514 | fepriv->dvbdev->users==-1); | |
2515 | ||
3593cab5 | 2516 | mutex_lock(&frontend_mutex); |
1da177e4 | 2517 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2518 | |
1da177e4 LT |
2519 | /* fe is invalid now */ |
2520 | kfree(fepriv); | |
3593cab5 | 2521 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2522 | return 0; |
2523 | } | |
2524 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2525 | |
149ef72d | 2526 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2527 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2528 | { | |
2529 | void *ptr; | |
2530 | ||
2531 | if (fe->ops.release_sec) { | |
2532 | fe->ops.release_sec(fe); | |
2533 | symbol_put_addr(fe->ops.release_sec); | |
2534 | } | |
2535 | if (fe->ops.tuner_ops.release) { | |
2536 | fe->ops.tuner_ops.release(fe); | |
2537 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2538 | } | |
2426a27e MK |
2539 | if (fe->ops.analog_ops.release) { |
2540 | fe->ops.analog_ops.release(fe); | |
2541 | symbol_put_addr(fe->ops.analog_ops.release); | |
2542 | } | |
f52a838b AQ |
2543 | ptr = (void*)fe->ops.release; |
2544 | if (ptr) { | |
2545 | fe->ops.release(fe); | |
2546 | symbol_put_addr(ptr); | |
2547 | } | |
2548 | } | |
2549 | #else | |
2550 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2551 | { | |
2552 | if (fe->ops.release_sec) | |
2553 | fe->ops.release_sec(fe); | |
2554 | if (fe->ops.tuner_ops.release) | |
2555 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2556 | if (fe->ops.analog_ops.release) |
2557 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2558 | if (fe->ops.release) |
2559 | fe->ops.release(fe); | |
2560 | } | |
2561 | #endif | |
2562 | EXPORT_SYMBOL(dvb_frontend_detach); |