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