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5b3f03f0 HS |
1 | #include "pd-common.h" |
2 | #include <linux/kernel.h> | |
3 | #include <linux/usb.h> | |
4 | #include <linux/dvb/dmx.h> | |
5 | #include <linux/delay.h> | |
5a0e3ad6 | 6 | #include <linux/gfp.h> |
5b3f03f0 HS |
7 | |
8 | #include "vendorcmds.h" | |
9 | #include <linux/sched.h> | |
10 | #include <asm/atomic.h> | |
11 | ||
12 | static void dvb_urb_cleanup(struct pd_dvb_adapter *pd_dvb); | |
13 | ||
14 | static int dvb_bandwidth[][2] = { | |
15 | { TLG_BW_8, BANDWIDTH_8_MHZ }, | |
16 | { TLG_BW_7, BANDWIDTH_7_MHZ }, | |
17 | { TLG_BW_6, BANDWIDTH_6_MHZ } | |
18 | }; | |
19 | static int dvb_bandwidth_length = ARRAY_SIZE(dvb_bandwidth); | |
20 | ||
21 | static s32 dvb_start_streaming(struct pd_dvb_adapter *pd_dvb); | |
22 | static int poseidon_check_mode_dvbt(struct poseidon *pd) | |
23 | { | |
24 | s32 ret = 0, cmd_status = 0; | |
25 | ||
26 | set_current_state(TASK_INTERRUPTIBLE); | |
27 | schedule_timeout(HZ/4); | |
28 | ||
29 | ret = usb_set_interface(pd->udev, 0, BULK_ALTERNATE_IFACE); | |
30 | if (ret != 0) | |
31 | return ret; | |
32 | ||
33 | ret = set_tuner_mode(pd, TLG_MODE_CAPS_DVB_T); | |
34 | if (ret) | |
35 | return ret; | |
36 | ||
37 | /* signal source */ | |
38 | ret = send_set_req(pd, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &cmd_status); | |
39 | if (ret|cmd_status) | |
40 | return ret; | |
41 | ||
42 | return 0; | |
43 | } | |
44 | ||
45 | /* acquire : | |
46 | * 1 == open | |
47 | * 0 == release | |
48 | */ | |
49 | static int poseidon_ts_bus_ctrl(struct dvb_frontend *fe, int acquire) | |
50 | { | |
51 | struct poseidon *pd = fe->demodulator_priv; | |
52 | struct pd_dvb_adapter *pd_dvb; | |
53 | int ret = 0; | |
54 | ||
55 | if (!pd) | |
56 | return -ENODEV; | |
57 | ||
58 | pd_dvb = container_of(fe, struct pd_dvb_adapter, dvb_fe); | |
59 | if (acquire) { | |
60 | mutex_lock(&pd->lock); | |
61 | if (pd->state & POSEIDON_STATE_DISCONNECT) { | |
62 | ret = -ENODEV; | |
63 | goto open_out; | |
64 | } | |
65 | ||
66 | if (pd->state && !(pd->state & POSEIDON_STATE_DVBT)) { | |
67 | ret = -EBUSY; | |
68 | goto open_out; | |
69 | } | |
70 | ||
71 | usb_autopm_get_interface(pd->interface); | |
72 | if (0 == pd->state) { | |
73 | ret = poseidon_check_mode_dvbt(pd); | |
74 | if (ret < 0) { | |
75 | usb_autopm_put_interface(pd->interface); | |
76 | goto open_out; | |
77 | } | |
78 | pd->state |= POSEIDON_STATE_DVBT; | |
79 | pd_dvb->bandwidth = 0; | |
80 | pd_dvb->prev_freq = 0; | |
81 | } | |
82 | atomic_inc(&pd_dvb->users); | |
83 | kref_get(&pd->kref); | |
84 | open_out: | |
85 | mutex_unlock(&pd->lock); | |
86 | } else { | |
87 | dvb_stop_streaming(pd_dvb); | |
88 | ||
89 | if (atomic_dec_and_test(&pd_dvb->users)) { | |
90 | mutex_lock(&pd->lock); | |
91 | pd->state &= ~POSEIDON_STATE_DVBT; | |
92 | mutex_unlock(&pd->lock); | |
93 | } | |
94 | kref_put(&pd->kref, poseidon_delete); | |
95 | usb_autopm_put_interface(pd->interface); | |
96 | } | |
97 | return ret; | |
98 | } | |
99 | ||
6c9eaa82 | 100 | #ifdef CONFIG_PM |
5b3f03f0 HS |
101 | static void poseidon_fe_release(struct dvb_frontend *fe) |
102 | { | |
103 | struct poseidon *pd = fe->demodulator_priv; | |
104 | ||
5b3f03f0 HS |
105 | pd->pm_suspend = NULL; |
106 | pd->pm_resume = NULL; | |
5b3f03f0 | 107 | } |
6c9eaa82 MN |
108 | #else |
109 | #define poseidon_fe_release NULL | |
110 | #endif | |
5b3f03f0 HS |
111 | |
112 | static s32 poseidon_fe_sleep(struct dvb_frontend *fe) | |
113 | { | |
114 | return 0; | |
115 | } | |
116 | ||
117 | /* | |
118 | * return true if we can satisfy the conditions, else return false. | |
119 | */ | |
120 | static bool check_scan_ok(__u32 freq, int bandwidth, | |
121 | struct pd_dvb_adapter *adapter) | |
122 | { | |
123 | if (bandwidth < 0) | |
124 | return false; | |
125 | ||
126 | if (adapter->prev_freq == freq | |
127 | && adapter->bandwidth == bandwidth) { | |
128 | long nl = jiffies - adapter->last_jiffies; | |
129 | unsigned int msec ; | |
130 | ||
131 | msec = jiffies_to_msecs(abs(nl)); | |
132 | return msec > 15000 ? true : false; | |
133 | } | |
134 | return true; | |
135 | } | |
136 | ||
137 | /* | |
138 | * Check if the firmware delays too long for an invalid frequency. | |
139 | */ | |
140 | static int fw_delay_overflow(struct pd_dvb_adapter *adapter) | |
141 | { | |
142 | long nl = jiffies - adapter->last_jiffies; | |
143 | unsigned int msec ; | |
144 | ||
145 | msec = jiffies_to_msecs(abs(nl)); | |
146 | return msec > 800 ? true : false; | |
147 | } | |
148 | ||
149 | static int poseidon_set_fe(struct dvb_frontend *fe, | |
150 | struct dvb_frontend_parameters *fep) | |
151 | { | |
152 | s32 ret = 0, cmd_status = 0; | |
153 | s32 i, bandwidth = -1; | |
154 | struct poseidon *pd = fe->demodulator_priv; | |
155 | struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; | |
156 | ||
157 | if (in_hibernation(pd)) | |
158 | return -EBUSY; | |
159 | ||
160 | mutex_lock(&pd->lock); | |
161 | for (i = 0; i < dvb_bandwidth_length; i++) | |
162 | if (fep->u.ofdm.bandwidth == dvb_bandwidth[i][1]) | |
163 | bandwidth = dvb_bandwidth[i][0]; | |
164 | ||
165 | if (check_scan_ok(fep->frequency, bandwidth, pd_dvb)) { | |
166 | ret = send_set_req(pd, TUNE_FREQ_SELECT, | |
167 | fep->frequency / 1000, &cmd_status); | |
168 | if (ret | cmd_status) { | |
169 | log("error line"); | |
170 | goto front_out; | |
171 | } | |
172 | ||
173 | ret = send_set_req(pd, DVBT_BANDW_SEL, | |
174 | bandwidth, &cmd_status); | |
175 | if (ret | cmd_status) { | |
176 | log("error line"); | |
177 | goto front_out; | |
178 | } | |
179 | ||
180 | ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status); | |
181 | if (ret | cmd_status) { | |
182 | log("error line"); | |
183 | goto front_out; | |
184 | } | |
185 | ||
186 | /* save the context for future */ | |
187 | memcpy(&pd_dvb->fe_param, fep, sizeof(*fep)); | |
188 | pd_dvb->bandwidth = bandwidth; | |
189 | pd_dvb->prev_freq = fep->frequency; | |
190 | pd_dvb->last_jiffies = jiffies; | |
191 | } | |
192 | front_out: | |
193 | mutex_unlock(&pd->lock); | |
194 | return ret; | |
195 | } | |
196 | ||
197 | #ifdef CONFIG_PM | |
198 | static int pm_dvb_suspend(struct poseidon *pd) | |
199 | { | |
200 | struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; | |
201 | dvb_stop_streaming(pd_dvb); | |
202 | dvb_urb_cleanup(pd_dvb); | |
203 | msleep(500); | |
204 | return 0; | |
205 | } | |
206 | ||
207 | static int pm_dvb_resume(struct poseidon *pd) | |
208 | { | |
209 | struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; | |
210 | ||
211 | poseidon_check_mode_dvbt(pd); | |
212 | msleep(300); | |
213 | poseidon_set_fe(&pd_dvb->dvb_fe, &pd_dvb->fe_param); | |
214 | ||
215 | dvb_start_streaming(pd_dvb); | |
216 | return 0; | |
217 | } | |
218 | #endif | |
219 | ||
220 | static s32 poseidon_fe_init(struct dvb_frontend *fe) | |
221 | { | |
222 | struct poseidon *pd = fe->demodulator_priv; | |
223 | struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; | |
224 | ||
225 | #ifdef CONFIG_PM | |
226 | pd->pm_suspend = pm_dvb_suspend; | |
227 | pd->pm_resume = pm_dvb_resume; | |
228 | #endif | |
229 | memset(&pd_dvb->fe_param, 0, | |
230 | sizeof(struct dvb_frontend_parameters)); | |
231 | return 0; | |
232 | } | |
233 | ||
234 | static int poseidon_get_fe(struct dvb_frontend *fe, | |
235 | struct dvb_frontend_parameters *fep) | |
236 | { | |
237 | struct poseidon *pd = fe->demodulator_priv; | |
238 | struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; | |
239 | ||
240 | memcpy(fep, &pd_dvb->fe_param, sizeof(*fep)); | |
241 | return 0; | |
242 | } | |
243 | ||
244 | static int poseidon_fe_get_tune_settings(struct dvb_frontend *fe, | |
245 | struct dvb_frontend_tune_settings *tune) | |
246 | { | |
247 | tune->min_delay_ms = 1000; | |
248 | return 0; | |
249 | } | |
250 | ||
251 | static int poseidon_read_status(struct dvb_frontend *fe, fe_status_t *stat) | |
252 | { | |
253 | struct poseidon *pd = fe->demodulator_priv; | |
254 | s32 ret = -1, cmd_status; | |
255 | struct tuner_dtv_sig_stat_s status = {}; | |
256 | ||
257 | if (in_hibernation(pd)) | |
258 | return -EBUSY; | |
259 | mutex_lock(&pd->lock); | |
260 | ||
261 | ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_DVB_T, | |
262 | &status, &cmd_status, sizeof(status)); | |
263 | if (ret | cmd_status) { | |
264 | log("get tuner status error"); | |
265 | goto out; | |
266 | } | |
267 | ||
268 | if (debug_mode) | |
269 | log("P : %d, L %d, LB :%d", status.sig_present, | |
270 | status.sig_locked, status.sig_lock_busy); | |
271 | ||
272 | if (status.sig_lock_busy) { | |
273 | goto out; | |
274 | } else if (status.sig_present || status.sig_locked) { | |
275 | *stat |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER | |
276 | | FE_HAS_SYNC | FE_HAS_VITERBI; | |
277 | } else { | |
278 | if (fw_delay_overflow(&pd->dvb_data)) | |
279 | *stat |= FE_TIMEDOUT; | |
280 | } | |
281 | out: | |
282 | mutex_unlock(&pd->lock); | |
283 | return ret; | |
284 | } | |
285 | ||
286 | static int poseidon_read_ber(struct dvb_frontend *fe, u32 *ber) | |
287 | { | |
288 | struct poseidon *pd = fe->demodulator_priv; | |
289 | struct tuner_ber_rate_s tlg_ber = {}; | |
290 | s32 ret = -1, cmd_status; | |
291 | ||
292 | mutex_lock(&pd->lock); | |
293 | ret = send_get_req(pd, TUNER_BER_RATE, 0, | |
294 | &tlg_ber, &cmd_status, sizeof(tlg_ber)); | |
295 | if (ret | cmd_status) | |
296 | goto out; | |
297 | *ber = tlg_ber.ber_rate; | |
298 | out: | |
299 | mutex_unlock(&pd->lock); | |
300 | return ret; | |
301 | } | |
302 | ||
303 | static s32 poseidon_read_signal_strength(struct dvb_frontend *fe, u16 *strength) | |
304 | { | |
305 | struct poseidon *pd = fe->demodulator_priv; | |
306 | struct tuner_dtv_sig_stat_s status = {}; | |
307 | s32 ret = 0, cmd_status; | |
308 | ||
309 | mutex_lock(&pd->lock); | |
310 | ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_DVB_T, | |
311 | &status, &cmd_status, sizeof(status)); | |
312 | if (ret | cmd_status) | |
313 | goto out; | |
314 | if ((status.sig_present || status.sig_locked) && !status.sig_strength) | |
315 | *strength = 0xFFFF; | |
316 | else | |
317 | *strength = status.sig_strength; | |
318 | out: | |
319 | mutex_unlock(&pd->lock); | |
320 | return ret; | |
321 | } | |
322 | ||
323 | static int poseidon_read_snr(struct dvb_frontend *fe, u16 *snr) | |
324 | { | |
325 | return 0; | |
326 | } | |
327 | ||
328 | static int poseidon_read_unc_blocks(struct dvb_frontend *fe, u32 *unc) | |
329 | { | |
330 | *unc = 0; | |
331 | return 0; | |
332 | } | |
333 | ||
334 | static struct dvb_frontend_ops poseidon_frontend_ops = { | |
335 | .info = { | |
336 | .name = "Poseidon DVB-T", | |
337 | .type = FE_OFDM, | |
338 | .frequency_min = 174000000, | |
339 | .frequency_max = 862000000, | |
340 | .frequency_stepsize = 62500,/* FIXME */ | |
341 | .caps = FE_CAN_INVERSION_AUTO | | |
342 | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | |
343 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | |
344 | FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | | |
345 | FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | | |
346 | FE_CAN_GUARD_INTERVAL_AUTO | | |
347 | FE_CAN_RECOVER | | |
348 | FE_CAN_HIERARCHY_AUTO, | |
349 | }, | |
350 | ||
351 | .release = poseidon_fe_release, | |
352 | ||
353 | .init = poseidon_fe_init, | |
354 | .sleep = poseidon_fe_sleep, | |
355 | ||
356 | .set_frontend = poseidon_set_fe, | |
357 | .get_frontend = poseidon_get_fe, | |
358 | .get_tune_settings = poseidon_fe_get_tune_settings, | |
359 | ||
360 | .read_status = poseidon_read_status, | |
361 | .read_ber = poseidon_read_ber, | |
362 | .read_signal_strength = poseidon_read_signal_strength, | |
363 | .read_snr = poseidon_read_snr, | |
364 | .read_ucblocks = poseidon_read_unc_blocks, | |
365 | ||
366 | .ts_bus_ctrl = poseidon_ts_bus_ctrl, | |
367 | }; | |
368 | ||
369 | static void dvb_urb_irq(struct urb *urb) | |
370 | { | |
371 | struct pd_dvb_adapter *pd_dvb = urb->context; | |
372 | int len = urb->transfer_buffer_length; | |
373 | struct dvb_demux *demux = &pd_dvb->demux; | |
374 | s32 ret; | |
375 | ||
376 | if (!pd_dvb->is_streaming || urb->status) { | |
377 | if (urb->status == -EPROTO) | |
378 | goto resend; | |
379 | return; | |
380 | } | |
381 | ||
382 | if (urb->actual_length == len) | |
383 | dvb_dmx_swfilter(demux, urb->transfer_buffer, len); | |
384 | else if (urb->actual_length == len - 4) { | |
385 | int offset; | |
386 | u8 *buf = urb->transfer_buffer; | |
387 | ||
388 | /* | |
389 | * The packet size is 512, | |
390 | * last packet contains 456 bytes tsp data | |
391 | */ | |
392 | for (offset = 456; offset < len; offset += 512) { | |
393 | if (!strncmp(buf + offset, "DVHS", 4)) { | |
394 | dvb_dmx_swfilter(demux, buf, offset); | |
395 | if (len > offset + 52 + 4) { | |
396 | /*16 bytes trailer + 36 bytes padding */ | |
397 | buf += offset + 52; | |
398 | len -= offset + 52 + 4; | |
399 | dvb_dmx_swfilter(demux, buf, len); | |
400 | } | |
401 | break; | |
402 | } | |
403 | } | |
404 | } | |
405 | ||
406 | resend: | |
407 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
408 | if (ret) | |
409 | log(" usb_submit_urb failed: error %d", ret); | |
410 | } | |
411 | ||
412 | static int dvb_urb_init(struct pd_dvb_adapter *pd_dvb) | |
413 | { | |
414 | if (pd_dvb->urb_array[0]) | |
415 | return 0; | |
416 | ||
417 | alloc_bulk_urbs_generic(pd_dvb->urb_array, DVB_SBUF_NUM, | |
418 | pd_dvb->pd_device->udev, pd_dvb->ep_addr, | |
419 | DVB_URB_BUF_SIZE, GFP_KERNEL, | |
420 | dvb_urb_irq, pd_dvb); | |
421 | return 0; | |
422 | } | |
423 | ||
424 | static void dvb_urb_cleanup(struct pd_dvb_adapter *pd_dvb) | |
425 | { | |
426 | free_all_urb_generic(pd_dvb->urb_array, DVB_SBUF_NUM); | |
427 | } | |
428 | ||
429 | static s32 dvb_start_streaming(struct pd_dvb_adapter *pd_dvb) | |
430 | { | |
431 | struct poseidon *pd = pd_dvb->pd_device; | |
432 | int ret = 0; | |
433 | ||
434 | if (pd->state & POSEIDON_STATE_DISCONNECT) | |
435 | return -ENODEV; | |
436 | ||
437 | mutex_lock(&pd->lock); | |
438 | if (!pd_dvb->is_streaming) { | |
439 | s32 i, cmd_status = 0; | |
440 | /* | |
441 | * Once upon a time, there was a difficult bug lying here. | |
442 | * ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status); | |
443 | */ | |
444 | ||
445 | ret = send_set_req(pd, PLAY_SERVICE, 1, &cmd_status); | |
446 | if (ret | cmd_status) | |
447 | goto out; | |
448 | ||
449 | ret = dvb_urb_init(pd_dvb); | |
450 | if (ret < 0) | |
451 | goto out; | |
452 | ||
453 | pd_dvb->is_streaming = 1; | |
454 | for (i = 0; i < DVB_SBUF_NUM; i++) { | |
455 | ret = usb_submit_urb(pd_dvb->urb_array[i], | |
456 | GFP_KERNEL); | |
457 | if (ret) { | |
458 | log(" submit urb error %d", ret); | |
459 | goto out; | |
460 | } | |
461 | } | |
462 | } | |
463 | out: | |
464 | mutex_unlock(&pd->lock); | |
465 | return ret; | |
466 | } | |
467 | ||
468 | void dvb_stop_streaming(struct pd_dvb_adapter *pd_dvb) | |
469 | { | |
470 | struct poseidon *pd = pd_dvb->pd_device; | |
471 | ||
472 | mutex_lock(&pd->lock); | |
473 | if (pd_dvb->is_streaming) { | |
474 | s32 i, ret, cmd_status = 0; | |
475 | ||
476 | pd_dvb->is_streaming = 0; | |
477 | ||
478 | for (i = 0; i < DVB_SBUF_NUM; i++) | |
479 | if (pd_dvb->urb_array[i]) | |
480 | usb_kill_urb(pd_dvb->urb_array[i]); | |
481 | ||
482 | ret = send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, | |
483 | &cmd_status); | |
484 | if (ret | cmd_status) | |
485 | log("error"); | |
486 | } | |
487 | mutex_unlock(&pd->lock); | |
488 | } | |
489 | ||
490 | static int pd_start_feed(struct dvb_demux_feed *feed) | |
491 | { | |
492 | struct pd_dvb_adapter *pd_dvb = feed->demux->priv; | |
493 | int ret = 0; | |
494 | ||
495 | if (!pd_dvb) | |
496 | return -1; | |
497 | if (atomic_inc_return(&pd_dvb->active_feed) == 1) | |
498 | ret = dvb_start_streaming(pd_dvb); | |
499 | return ret; | |
500 | } | |
501 | ||
502 | static int pd_stop_feed(struct dvb_demux_feed *feed) | |
503 | { | |
504 | struct pd_dvb_adapter *pd_dvb = feed->demux->priv; | |
505 | ||
506 | if (!pd_dvb) | |
507 | return -1; | |
508 | if (atomic_dec_and_test(&pd_dvb->active_feed)) | |
509 | dvb_stop_streaming(pd_dvb); | |
510 | return 0; | |
511 | } | |
512 | ||
513 | DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); | |
514 | int pd_dvb_usb_device_init(struct poseidon *pd) | |
515 | { | |
516 | struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; | |
517 | struct dvb_demux *dvbdemux; | |
518 | int ret = 0; | |
519 | ||
520 | pd_dvb->ep_addr = 0x82; | |
521 | atomic_set(&pd_dvb->users, 0); | |
522 | atomic_set(&pd_dvb->active_feed, 0); | |
523 | pd_dvb->pd_device = pd; | |
524 | ||
525 | ret = dvb_register_adapter(&pd_dvb->dvb_adap, | |
526 | "Poseidon dvbt adapter", | |
527 | THIS_MODULE, | |
528 | NULL /* for hibernation correctly*/, | |
529 | adapter_nr); | |
530 | if (ret < 0) | |
531 | goto error1; | |
532 | ||
533 | /* register frontend */ | |
534 | pd_dvb->dvb_fe.demodulator_priv = pd; | |
535 | memcpy(&pd_dvb->dvb_fe.ops, &poseidon_frontend_ops, | |
536 | sizeof(struct dvb_frontend_ops)); | |
537 | ret = dvb_register_frontend(&pd_dvb->dvb_adap, &pd_dvb->dvb_fe); | |
538 | if (ret < 0) | |
539 | goto error2; | |
540 | ||
541 | /* register demux device */ | |
542 | dvbdemux = &pd_dvb->demux; | |
543 | dvbdemux->dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; | |
544 | dvbdemux->priv = pd_dvb; | |
545 | dvbdemux->feednum = dvbdemux->filternum = 64; | |
546 | dvbdemux->start_feed = pd_start_feed; | |
547 | dvbdemux->stop_feed = pd_stop_feed; | |
548 | dvbdemux->write_to_decoder = NULL; | |
549 | ||
550 | ret = dvb_dmx_init(dvbdemux); | |
551 | if (ret < 0) | |
552 | goto error3; | |
553 | ||
554 | pd_dvb->dmxdev.filternum = pd_dvb->demux.filternum; | |
555 | pd_dvb->dmxdev.demux = &pd_dvb->demux.dmx; | |
556 | pd_dvb->dmxdev.capabilities = 0; | |
557 | ||
558 | ret = dvb_dmxdev_init(&pd_dvb->dmxdev, &pd_dvb->dvb_adap); | |
559 | if (ret < 0) | |
560 | goto error3; | |
561 | return 0; | |
562 | ||
563 | error3: | |
564 | dvb_unregister_frontend(&pd_dvb->dvb_fe); | |
565 | error2: | |
566 | dvb_unregister_adapter(&pd_dvb->dvb_adap); | |
567 | error1: | |
568 | return ret; | |
569 | } | |
570 | ||
571 | void pd_dvb_usb_device_exit(struct poseidon *pd) | |
572 | { | |
573 | struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; | |
574 | ||
575 | while (atomic_read(&pd_dvb->users) != 0 | |
576 | || atomic_read(&pd_dvb->active_feed) != 0) { | |
577 | set_current_state(TASK_INTERRUPTIBLE); | |
578 | schedule_timeout(HZ); | |
579 | } | |
580 | dvb_dmxdev_release(&pd_dvb->dmxdev); | |
581 | dvb_unregister_frontend(&pd_dvb->dvb_fe); | |
582 | dvb_unregister_adapter(&pd_dvb->dvb_adap); | |
583 | pd_dvb_usb_device_cleanup(pd); | |
584 | } | |
585 | ||
586 | void pd_dvb_usb_device_cleanup(struct poseidon *pd) | |
587 | { | |
588 | struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; | |
589 | ||
590 | dvb_urb_cleanup(pd_dvb); | |
591 | } | |
592 | ||
593 | int pd_dvb_get_adapter_num(struct pd_dvb_adapter *pd_dvb) | |
594 | { | |
595 | return pd_dvb->dvb_adap.num; | |
596 | } |