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33#include <linux/module.h>
34#include <linux/delay.h>
35#include <linux/usb.h>
36#include <linux/mISDNhw.h>
37#include <linux/slab.h>
38#include "hfcsusb.h"
39
40static unsigned int debug;
41static int poll = DEFAULT_TRANSP_BURST_SZ;
42
43static LIST_HEAD(HFClist);
44static DEFINE_RWLOCK(HFClock);
45
46
47MODULE_AUTHOR("Martin Bachem");
48MODULE_LICENSE("GPL");
49module_param(debug, uint, S_IRUGO | S_IWUSR);
50module_param(poll, int, 0);
51
52static int hfcsusb_cnt;
53
54
55static void hfcsusb_ph_command(struct hfcsusb *hw, u_char command);
56static void release_hw(struct hfcsusb *hw);
57static void reset_hfcsusb(struct hfcsusb *hw);
58static void setPortMode(struct hfcsusb *hw);
59static void hfcsusb_start_endpoint(struct hfcsusb *hw, int channel);
60static void hfcsusb_stop_endpoint(struct hfcsusb *hw, int channel);
61static int hfcsusb_setup_bch(struct bchannel *bch, int protocol);
62static void deactivate_bchannel(struct bchannel *bch);
63static void hfcsusb_ph_info(struct hfcsusb *hw);
64
65
66static void
67ctrl_start_transfer(struct hfcsusb *hw)
68{
69 if (debug & DBG_HFC_CALL_TRACE)
70 printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
71
72 if (hw->ctrl_cnt) {
73 hw->ctrl_urb->pipe = hw->ctrl_out_pipe;
74 hw->ctrl_urb->setup_packet = (u_char *)&hw->ctrl_write;
75 hw->ctrl_urb->transfer_buffer = NULL;
76 hw->ctrl_urb->transfer_buffer_length = 0;
77 hw->ctrl_write.wIndex =
78 cpu_to_le16(hw->ctrl_buff[hw->ctrl_out_idx].hfcs_reg);
79 hw->ctrl_write.wValue =
80 cpu_to_le16(hw->ctrl_buff[hw->ctrl_out_idx].reg_val);
81
82 usb_submit_urb(hw->ctrl_urb, GFP_ATOMIC);
83 }
84}
85
86
87
88
89
90static int write_reg(struct hfcsusb *hw, __u8 reg, __u8 val)
91{
92 struct ctrl_buf *buf;
93
94 if (debug & DBG_HFC_CALL_TRACE)
95 printk(KERN_DEBUG "%s: %s reg(0x%02x) val(0x%02x)\n",
96 hw->name, __func__, reg, val);
97
98 spin_lock(&hw->ctrl_lock);
99 if (hw->ctrl_cnt >= HFC_CTRL_BUFSIZE) {
100 spin_unlock(&hw->ctrl_lock);
101 return 1;
102 }
103 buf = &hw->ctrl_buff[hw->ctrl_in_idx];
104 buf->hfcs_reg = reg;
105 buf->reg_val = val;
106 if (++hw->ctrl_in_idx >= HFC_CTRL_BUFSIZE)
107 hw->ctrl_in_idx = 0;
108 if (++hw->ctrl_cnt == 1)
109 ctrl_start_transfer(hw);
110 spin_unlock(&hw->ctrl_lock);
111
112 return 0;
113}
114
115
116static void
117ctrl_complete(struct urb *urb)
118{
119 struct hfcsusb *hw = (struct hfcsusb *) urb->context;
120
121 if (debug & DBG_HFC_CALL_TRACE)
122 printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
123
124 urb->dev = hw->dev;
125 if (hw->ctrl_cnt) {
126 hw->ctrl_cnt--;
127 if (++hw->ctrl_out_idx >= HFC_CTRL_BUFSIZE)
128 hw->ctrl_out_idx = 0;
129
130 ctrl_start_transfer(hw);
131 }
132}
133
134
135static void
136set_led_bit(struct hfcsusb *hw, signed short led_bits, int set_on)
137{
138 if (set_on) {
139 if (led_bits < 0)
140 hw->led_state &= ~abs(led_bits);
141 else
142 hw->led_state |= led_bits;
143 } else {
144 if (led_bits < 0)
145 hw->led_state |= abs(led_bits);
146 else
147 hw->led_state &= ~led_bits;
148 }
149}
150
151
152static void
153handle_led(struct hfcsusb *hw, int event)
154{
155 struct hfcsusb_vdata *driver_info = (struct hfcsusb_vdata *)
156 hfcsusb_idtab[hw->vend_idx].driver_info;
157 __u8 tmpled;
158
159 if (driver_info->led_scheme == LED_OFF)
160 return;
161 tmpled = hw->led_state;
162
163 switch (event) {
164 case LED_POWER_ON:
165 set_led_bit(hw, driver_info->led_bits[0], 1);
166 set_led_bit(hw, driver_info->led_bits[1], 0);
167 set_led_bit(hw, driver_info->led_bits[2], 0);
168 set_led_bit(hw, driver_info->led_bits[3], 0);
169 break;
170 case LED_POWER_OFF:
171 set_led_bit(hw, driver_info->led_bits[0], 0);
172 set_led_bit(hw, driver_info->led_bits[1], 0);
173 set_led_bit(hw, driver_info->led_bits[2], 0);
174 set_led_bit(hw, driver_info->led_bits[3], 0);
175 break;
176 case LED_S0_ON:
177 set_led_bit(hw, driver_info->led_bits[1], 1);
178 break;
179 case LED_S0_OFF:
180 set_led_bit(hw, driver_info->led_bits[1], 0);
181 break;
182 case LED_B1_ON:
183 set_led_bit(hw, driver_info->led_bits[2], 1);
184 break;
185 case LED_B1_OFF:
186 set_led_bit(hw, driver_info->led_bits[2], 0);
187 break;
188 case LED_B2_ON:
189 set_led_bit(hw, driver_info->led_bits[3], 1);
190 break;
191 case LED_B2_OFF:
192 set_led_bit(hw, driver_info->led_bits[3], 0);
193 break;
194 }
195
196 if (hw->led_state != tmpled) {
197 if (debug & DBG_HFC_CALL_TRACE)
198 printk(KERN_DEBUG "%s: %s reg(0x%02x) val(x%02x)\n",
199 hw->name, __func__,
200 HFCUSB_P_DATA, hw->led_state);
201
202 write_reg(hw, HFCUSB_P_DATA, hw->led_state);
203 }
204}
205
206
207
208
209static int
210hfcusb_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb)
211{
212 struct bchannel *bch = container_of(ch, struct bchannel, ch);
213 struct hfcsusb *hw = bch->hw;
214 int ret = -EINVAL;
215 struct mISDNhead *hh = mISDN_HEAD_P(skb);
216 u_long flags;
217
218 if (debug & DBG_HFC_CALL_TRACE)
219 printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
220
221 switch (hh->prim) {
222 case PH_DATA_REQ:
223 spin_lock_irqsave(&hw->lock, flags);
224 ret = bchannel_senddata(bch, skb);
225 spin_unlock_irqrestore(&hw->lock, flags);
226 if (debug & DBG_HFC_CALL_TRACE)
227 printk(KERN_DEBUG "%s: %s PH_DATA_REQ ret(%i)\n",
228 hw->name, __func__, ret);
229 if (ret > 0)
230 ret = 0;
231 return ret;
232 case PH_ACTIVATE_REQ:
233 if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) {
234 hfcsusb_start_endpoint(hw, bch->nr - 1);
235 ret = hfcsusb_setup_bch(bch, ch->protocol);
236 } else
237 ret = 0;
238 if (!ret)
239 _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
240 0, NULL, GFP_KERNEL);
241 break;
242 case PH_DEACTIVATE_REQ:
243 deactivate_bchannel(bch);
244 _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY,
245 0, NULL, GFP_KERNEL);
246 ret = 0;
247 break;
248 }
249 if (!ret)
250 dev_kfree_skb(skb);
251 return ret;
252}
253
254
255
256
257
258static void
259hfcsusb_ph_info(struct hfcsusb *hw)
260{
261 struct ph_info *phi;
262 struct dchannel *dch = &hw->dch;
263 int i;
264
265 phi = kzalloc(struct_size(phi, bch, dch->dev.nrbchan), GFP_ATOMIC);
266 if (!phi)
267 return;
268
269 phi->dch.ch.protocol = hw->protocol;
270 phi->dch.ch.Flags = dch->Flags;
271 phi->dch.state = dch->state;
272 phi->dch.num_bch = dch->dev.nrbchan;
273 for (i = 0; i < dch->dev.nrbchan; i++) {
274 phi->bch[i].protocol = hw->bch[i].ch.protocol;
275 phi->bch[i].Flags = hw->bch[i].Flags;
276 }
277 _queue_data(&dch->dev.D, MPH_INFORMATION_IND, MISDN_ID_ANY,
278 sizeof(struct ph_info_dch) + dch->dev.nrbchan *
279 sizeof(struct ph_info_ch), phi, GFP_ATOMIC);
280 kfree(phi);
281}
282
283
284
285
286static int
287hfcusb_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb)
288{
289 struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
290 struct dchannel *dch = container_of(dev, struct dchannel, dev);
291 struct mISDNhead *hh = mISDN_HEAD_P(skb);
292 struct hfcsusb *hw = dch->hw;
293 int ret = -EINVAL;
294 u_long flags;
295
296 switch (hh->prim) {
297 case PH_DATA_REQ:
298 if (debug & DBG_HFC_CALL_TRACE)
299 printk(KERN_DEBUG "%s: %s: PH_DATA_REQ\n",
300 hw->name, __func__);
301
302 spin_lock_irqsave(&hw->lock, flags);
303 ret = dchannel_senddata(dch, skb);
304 spin_unlock_irqrestore(&hw->lock, flags);
305 if (ret > 0) {
306 ret = 0;
307 queue_ch_frame(ch, PH_DATA_CNF, hh->id, NULL);
308 }
309 break;
310
311 case PH_ACTIVATE_REQ:
312 if (debug & DBG_HFC_CALL_TRACE)
313 printk(KERN_DEBUG "%s: %s: PH_ACTIVATE_REQ %s\n",
314 hw->name, __func__,
315 (hw->protocol == ISDN_P_NT_S0) ? "NT" : "TE");
316
317 if (hw->protocol == ISDN_P_NT_S0) {
318 ret = 0;
319 if (test_bit(FLG_ACTIVE, &dch->Flags)) {
320 _queue_data(&dch->dev.D,
321 PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
322 NULL, GFP_ATOMIC);
323 } else {
324 hfcsusb_ph_command(hw,
325 HFC_L1_ACTIVATE_NT);
326 test_and_set_bit(FLG_L2_ACTIVATED,
327 &dch->Flags);
328 }
329 } else {
330 hfcsusb_ph_command(hw, HFC_L1_ACTIVATE_TE);
331 ret = l1_event(dch->l1, hh->prim);
332 }
333 break;
334
335 case PH_DEACTIVATE_REQ:
336 if (debug & DBG_HFC_CALL_TRACE)
337 printk(KERN_DEBUG "%s: %s: PH_DEACTIVATE_REQ\n",
338 hw->name, __func__);
339 test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
340
341 if (hw->protocol == ISDN_P_NT_S0) {
342 hfcsusb_ph_command(hw, HFC_L1_DEACTIVATE_NT);
343 spin_lock_irqsave(&hw->lock, flags);
344 skb_queue_purge(&dch->squeue);
345 if (dch->tx_skb) {
346 dev_kfree_skb(dch->tx_skb);
347 dch->tx_skb = NULL;
348 }
349 dch->tx_idx = 0;
350 if (dch->rx_skb) {
351 dev_kfree_skb(dch->rx_skb);
352 dch->rx_skb = NULL;
353 }
354 test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
355 spin_unlock_irqrestore(&hw->lock, flags);
356#ifdef FIXME
357 if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
358 dchannel_sched_event(&hc->dch, D_CLEARBUSY);
359#endif
360 ret = 0;
361 } else
362 ret = l1_event(dch->l1, hh->prim);
363 break;
364 case MPH_INFORMATION_REQ:
365 hfcsusb_ph_info(hw);
366 ret = 0;
367 break;
368 }
369
370 return ret;
371}
372
373
374
375
376static int
377hfc_l1callback(struct dchannel *dch, u_int cmd)
378{
379 struct hfcsusb *hw = dch->hw;
380
381 if (debug & DBG_HFC_CALL_TRACE)
382 printk(KERN_DEBUG "%s: %s cmd 0x%x\n",
383 hw->name, __func__, cmd);
384
385 switch (cmd) {
386 case INFO3_P8:
387 case INFO3_P10:
388 case HW_RESET_REQ:
389 case HW_POWERUP_REQ:
390 break;
391
392 case HW_DEACT_REQ:
393 skb_queue_purge(&dch->squeue);
394 if (dch->tx_skb) {
395 dev_kfree_skb(dch->tx_skb);
396 dch->tx_skb = NULL;
397 }
398 dch->tx_idx = 0;
399 if (dch->rx_skb) {
400 dev_kfree_skb(dch->rx_skb);
401 dch->rx_skb = NULL;
402 }
403 test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
404 break;
405 case PH_ACTIVATE_IND:
406 test_and_set_bit(FLG_ACTIVE, &dch->Flags);
407 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
408 GFP_ATOMIC);
409 break;
410 case PH_DEACTIVATE_IND:
411 test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
412 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
413 GFP_ATOMIC);
414 break;
415 default:
416 if (dch->debug & DEBUG_HW)
417 printk(KERN_DEBUG "%s: %s: unknown cmd %x\n",
418 hw->name, __func__, cmd);
419 return -1;
420 }
421 hfcsusb_ph_info(hw);
422 return 0;
423}
424
425static int
426open_dchannel(struct hfcsusb *hw, struct mISDNchannel *ch,
427 struct channel_req *rq)
428{
429 int err = 0;
430
431 if (debug & DEBUG_HW_OPEN)
432 printk(KERN_DEBUG "%s: %s: dev(%d) open addr(%i) from %p\n",
433 hw->name, __func__, hw->dch.dev.id, rq->adr.channel,
434 __builtin_return_address(0));
435 if (rq->protocol == ISDN_P_NONE)
436 return -EINVAL;
437
438 test_and_clear_bit(FLG_ACTIVE, &hw->dch.Flags);
439 test_and_clear_bit(FLG_ACTIVE, &hw->ech.Flags);
440 hfcsusb_start_endpoint(hw, HFC_CHAN_D);
441
442
443 if (rq->adr.channel == 1) {
444 if (hw->fifos[HFCUSB_PCM_RX].pipe) {
445 hfcsusb_start_endpoint(hw, HFC_CHAN_E);
446 set_bit(FLG_ACTIVE, &hw->ech.Flags);
447 _queue_data(&hw->ech.dev.D, PH_ACTIVATE_IND,
448 MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
449 } else
450 return -EINVAL;
451 }
452
453 if (!hw->initdone) {
454 hw->protocol = rq->protocol;
455 if (rq->protocol == ISDN_P_TE_S0) {
456 err = create_l1(&hw->dch, hfc_l1callback);
457 if (err)
458 return err;
459 }
460 setPortMode(hw);
461 ch->protocol = rq->protocol;
462 hw->initdone = 1;
463 } else {
464 if (rq->protocol != ch->protocol)
465 return -EPROTONOSUPPORT;
466 }
467
468 if (((ch->protocol == ISDN_P_NT_S0) && (hw->dch.state == 3)) ||
469 ((ch->protocol == ISDN_P_TE_S0) && (hw->dch.state == 7)))
470 _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
471 0, NULL, GFP_KERNEL);
472 rq->ch = ch;
473 if (!try_module_get(THIS_MODULE))
474 printk(KERN_WARNING "%s: %s: cannot get module\n",
475 hw->name, __func__);
476 return 0;
477}
478
479static int
480open_bchannel(struct hfcsusb *hw, struct channel_req *rq)
481{
482 struct bchannel *bch;
483
484 if (rq->adr.channel == 0 || rq->adr.channel > 2)
485 return -EINVAL;
486 if (rq->protocol == ISDN_P_NONE)
487 return -EINVAL;
488
489 if (debug & DBG_HFC_CALL_TRACE)
490 printk(KERN_DEBUG "%s: %s B%i\n",
491 hw->name, __func__, rq->adr.channel);
492
493 bch = &hw->bch[rq->adr.channel - 1];
494 if (test_and_set_bit(FLG_OPEN, &bch->Flags))
495 return -EBUSY;
496 bch->ch.protocol = rq->protocol;
497 rq->ch = &bch->ch;
498
499 if (!try_module_get(THIS_MODULE))
500 printk(KERN_WARNING "%s: %s:cannot get module\n",
501 hw->name, __func__);
502 return 0;
503}
504
505static int
506channel_ctrl(struct hfcsusb *hw, struct mISDN_ctrl_req *cq)
507{
508 int ret = 0;
509
510 if (debug & DBG_HFC_CALL_TRACE)
511 printk(KERN_DEBUG "%s: %s op(0x%x) channel(0x%x)\n",
512 hw->name, __func__, (cq->op), (cq->channel));
513
514 switch (cq->op) {
515 case MISDN_CTRL_GETOP:
516 cq->op = MISDN_CTRL_LOOP | MISDN_CTRL_CONNECT |
517 MISDN_CTRL_DISCONNECT;
518 break;
519 default:
520 printk(KERN_WARNING "%s: %s: unknown Op %x\n",
521 hw->name, __func__, cq->op);
522 ret = -EINVAL;
523 break;
524 }
525 return ret;
526}
527
528
529
530
531static int
532hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
533{
534 struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
535 struct dchannel *dch = container_of(dev, struct dchannel, dev);
536 struct hfcsusb *hw = dch->hw;
537 struct channel_req *rq;
538 int err = 0;
539
540 if (dch->debug & DEBUG_HW)
541 printk(KERN_DEBUG "%s: %s: cmd:%x %p\n",
542 hw->name, __func__, cmd, arg);
543 switch (cmd) {
544 case OPEN_CHANNEL:
545 rq = arg;
546 if ((rq->protocol == ISDN_P_TE_S0) ||
547 (rq->protocol == ISDN_P_NT_S0))
548 err = open_dchannel(hw, ch, rq);
549 else
550 err = open_bchannel(hw, rq);
551 if (!err)
552 hw->open++;
553 break;
554 case CLOSE_CHANNEL:
555 hw->open--;
556 if (debug & DEBUG_HW_OPEN)
557 printk(KERN_DEBUG
558 "%s: %s: dev(%d) close from %p (open %d)\n",
559 hw->name, __func__, hw->dch.dev.id,
560 __builtin_return_address(0), hw->open);
561 if (!hw->open) {
562 hfcsusb_stop_endpoint(hw, HFC_CHAN_D);
563 if (hw->fifos[HFCUSB_PCM_RX].pipe)
564 hfcsusb_stop_endpoint(hw, HFC_CHAN_E);
565 handle_led(hw, LED_POWER_ON);
566 }
567 module_put(THIS_MODULE);
568 break;
569 case CONTROL_CHANNEL:
570 err = channel_ctrl(hw, arg);
571 break;
572 default:
573 if (dch->debug & DEBUG_HW)
574 printk(KERN_DEBUG "%s: %s: unknown command %x\n",
575 hw->name, __func__, cmd);
576 return -EINVAL;
577 }
578 return err;
579}
580
581
582
583
584static void
585ph_state_te(struct dchannel *dch)
586{
587 struct hfcsusb *hw = dch->hw;
588
589 if (debug & DEBUG_HW) {
590 if (dch->state <= HFC_MAX_TE_LAYER1_STATE)
591 printk(KERN_DEBUG "%s: %s: %s\n", hw->name, __func__,
592 HFC_TE_LAYER1_STATES[dch->state]);
593 else
594 printk(KERN_DEBUG "%s: %s: TE F%d\n",
595 hw->name, __func__, dch->state);
596 }
597
598 switch (dch->state) {
599 case 0:
600 l1_event(dch->l1, HW_RESET_IND);
601 break;
602 case 3:
603 l1_event(dch->l1, HW_DEACT_IND);
604 break;
605 case 5:
606 case 8:
607 l1_event(dch->l1, ANYSIGNAL);
608 break;
609 case 6:
610 l1_event(dch->l1, INFO2);
611 break;
612 case 7:
613 l1_event(dch->l1, INFO4_P8);
614 break;
615 }
616 if (dch->state == 7)
617 handle_led(hw, LED_S0_ON);
618 else
619 handle_led(hw, LED_S0_OFF);
620}
621
622
623
624
625static void
626ph_state_nt(struct dchannel *dch)
627{
628 struct hfcsusb *hw = dch->hw;
629
630 if (debug & DEBUG_HW) {
631 if (dch->state <= HFC_MAX_NT_LAYER1_STATE)
632 printk(KERN_DEBUG "%s: %s: %s\n",
633 hw->name, __func__,
634 HFC_NT_LAYER1_STATES[dch->state]);
635
636 else
637 printk(KERN_INFO DRIVER_NAME "%s: %s: NT G%d\n",
638 hw->name, __func__, dch->state);
639 }
640
641 switch (dch->state) {
642 case (1):
643 test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
644 test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
645 hw->nt_timer = 0;
646 hw->timers &= ~NT_ACTIVATION_TIMER;
647 handle_led(hw, LED_S0_OFF);
648 break;
649
650 case (2):
651 if (hw->nt_timer < 0) {
652 hw->nt_timer = 0;
653 hw->timers &= ~NT_ACTIVATION_TIMER;
654 hfcsusb_ph_command(dch->hw, HFC_L1_DEACTIVATE_NT);
655 } else {
656 hw->timers |= NT_ACTIVATION_TIMER;
657 hw->nt_timer = NT_T1_COUNT;
658
659 write_reg(hw, HFCUSB_STATES, 2 | HFCUSB_NT_G2_G3);
660 }
661 break;
662 case (3):
663 hw->nt_timer = 0;
664 hw->timers &= ~NT_ACTIVATION_TIMER;
665 test_and_set_bit(FLG_ACTIVE, &dch->Flags);
666 _queue_data(&dch->dev.D, PH_ACTIVATE_IND,
667 MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
668 handle_led(hw, LED_S0_ON);
669 break;
670 case (4):
671 hw->nt_timer = 0;
672 hw->timers &= ~NT_ACTIVATION_TIMER;
673 break;
674 default:
675 break;
676 }
677 hfcsusb_ph_info(hw);
678}
679
680static void
681ph_state(struct dchannel *dch)
682{
683 struct hfcsusb *hw = dch->hw;
684
685 if (hw->protocol == ISDN_P_NT_S0)
686 ph_state_nt(dch);
687 else if (hw->protocol == ISDN_P_TE_S0)
688 ph_state_te(dch);
689}
690
691
692
693
694static int
695hfcsusb_setup_bch(struct bchannel *bch, int protocol)
696{
697 struct hfcsusb *hw = bch->hw;
698 __u8 conhdlc, sctrl, sctrl_r;
699
700 if (debug & DEBUG_HW)
701 printk(KERN_DEBUG "%s: %s: protocol %x-->%x B%d\n",
702 hw->name, __func__, bch->state, protocol,
703 bch->nr);
704
705
706 conhdlc = 0;
707 if (protocol > ISDN_P_NONE)
708 conhdlc = 8;
709
710 switch (protocol) {
711 case (-1):
712 bch->state = -1;
713
714 case (ISDN_P_NONE):
715 if (bch->state == ISDN_P_NONE)
716 return 0;
717 bch->state = ISDN_P_NONE;
718 clear_bit(FLG_HDLC, &bch->Flags);
719 clear_bit(FLG_TRANSPARENT, &bch->Flags);
720 break;
721 case (ISDN_P_B_RAW):
722 conhdlc |= 2;
723 bch->state = protocol;
724 set_bit(FLG_TRANSPARENT, &bch->Flags);
725 break;
726 case (ISDN_P_B_HDLC):
727 bch->state = protocol;
728 set_bit(FLG_HDLC, &bch->Flags);
729 break;
730 default:
731 if (debug & DEBUG_HW)
732 printk(KERN_DEBUG "%s: %s: prot not known %x\n",
733 hw->name, __func__, protocol);
734 return -ENOPROTOOPT;
735 }
736
737 if (protocol >= ISDN_P_NONE) {
738 write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 0 : 2);
739 write_reg(hw, HFCUSB_CON_HDLC, conhdlc);
740 write_reg(hw, HFCUSB_INC_RES_F, 2);
741 write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 1 : 3);
742 write_reg(hw, HFCUSB_CON_HDLC, conhdlc);
743 write_reg(hw, HFCUSB_INC_RES_F, 2);
744
745 sctrl = 0x40 + ((hw->protocol == ISDN_P_TE_S0) ? 0x00 : 0x04);
746 sctrl_r = 0x0;
747 if (test_bit(FLG_ACTIVE, &hw->bch[0].Flags)) {
748 sctrl |= 1;
749 sctrl_r |= 1;
750 }
751 if (test_bit(FLG_ACTIVE, &hw->bch[1].Flags)) {
752 sctrl |= 2;
753 sctrl_r |= 2;
754 }
755 write_reg(hw, HFCUSB_SCTRL, sctrl);
756 write_reg(hw, HFCUSB_SCTRL_R, sctrl_r);
757
758 if (protocol > ISDN_P_NONE)
759 handle_led(hw, (bch->nr == 1) ? LED_B1_ON : LED_B2_ON);
760 else
761 handle_led(hw, (bch->nr == 1) ? LED_B1_OFF :
762 LED_B2_OFF);
763 }
764 hfcsusb_ph_info(hw);
765 return 0;
766}
767
768static void
769hfcsusb_ph_command(struct hfcsusb *hw, u_char command)
770{
771 if (debug & DEBUG_HW)
772 printk(KERN_DEBUG "%s: %s: %x\n",
773 hw->name, __func__, command);
774
775 switch (command) {
776 case HFC_L1_ACTIVATE_TE:
777
778 write_reg(hw, HFCUSB_STATES, 0x14);
779
780 write_reg(hw, HFCUSB_STATES, 0x04);
781 break;
782
783 case HFC_L1_FORCE_DEACTIVATE_TE:
784 write_reg(hw, HFCUSB_STATES, 0x10);
785 write_reg(hw, HFCUSB_STATES, 0x03);
786 break;
787
788 case HFC_L1_ACTIVATE_NT:
789 if (hw->dch.state == 3)
790 _queue_data(&hw->dch.dev.D, PH_ACTIVATE_IND,
791 MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
792 else
793 write_reg(hw, HFCUSB_STATES, HFCUSB_ACTIVATE |
794 HFCUSB_DO_ACTION | HFCUSB_NT_G2_G3);
795 break;
796
797 case HFC_L1_DEACTIVATE_NT:
798 write_reg(hw, HFCUSB_STATES,
799 HFCUSB_DO_ACTION);
800 break;
801 }
802}
803
804
805
806
807static int
808channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
809{
810 return mISDN_ctrl_bchannel(bch, cq);
811}
812
813
814static void
815hfcsusb_rx_frame(struct usb_fifo *fifo, __u8 *data, unsigned int len,
816 int finish)
817{
818 struct hfcsusb *hw = fifo->hw;
819 struct sk_buff *rx_skb = NULL;
820 int maxlen = 0;
821 int fifon = fifo->fifonum;
822 int i;
823 int hdlc = 0;
824 unsigned long flags;
825
826 if (debug & DBG_HFC_CALL_TRACE)
827 printk(KERN_DEBUG "%s: %s: fifo(%i) len(%i) "
828 "dch(%p) bch(%p) ech(%p)\n",
829 hw->name, __func__, fifon, len,
830 fifo->dch, fifo->bch, fifo->ech);
831
832 if (!len)
833 return;
834
835 if ((!!fifo->dch + !!fifo->bch + !!fifo->ech) != 1) {
836 printk(KERN_DEBUG "%s: %s: undefined channel\n",
837 hw->name, __func__);
838 return;
839 }
840
841 spin_lock_irqsave(&hw->lock, flags);
842 if (fifo->dch) {
843 rx_skb = fifo->dch->rx_skb;
844 maxlen = fifo->dch->maxlen;
845 hdlc = 1;
846 }
847 if (fifo->bch) {
848 if (test_bit(FLG_RX_OFF, &fifo->bch->Flags)) {
849 fifo->bch->dropcnt += len;
850 spin_unlock_irqrestore(&hw->lock, flags);
851 return;
852 }
853 maxlen = bchannel_get_rxbuf(fifo->bch, len);
854 rx_skb = fifo->bch->rx_skb;
855 if (maxlen < 0) {
856 if (rx_skb)
857 skb_trim(rx_skb, 0);
858 pr_warning("%s.B%d: No bufferspace for %d bytes\n",
859 hw->name, fifo->bch->nr, len);
860 spin_unlock_irqrestore(&hw->lock, flags);
861 return;
862 }
863 maxlen = fifo->bch->maxlen;
864 hdlc = test_bit(FLG_HDLC, &fifo->bch->Flags);
865 }
866 if (fifo->ech) {
867 rx_skb = fifo->ech->rx_skb;
868 maxlen = fifo->ech->maxlen;
869 hdlc = 1;
870 }
871
872 if (fifo->dch || fifo->ech) {
873 if (!rx_skb) {
874 rx_skb = mI_alloc_skb(maxlen, GFP_ATOMIC);
875 if (rx_skb) {
876 if (fifo->dch)
877 fifo->dch->rx_skb = rx_skb;
878 if (fifo->ech)
879 fifo->ech->rx_skb = rx_skb;
880 skb_trim(rx_skb, 0);
881 } else {
882 printk(KERN_DEBUG "%s: %s: No mem for rx_skb\n",
883 hw->name, __func__);
884 spin_unlock_irqrestore(&hw->lock, flags);
885 return;
886 }
887 }
888
889 if ((rx_skb->len + len) >= MAX_DFRAME_LEN_L1) {
890 printk(KERN_DEBUG "%s: %s: sbk mem exceeded "
891 "for fifo(%d) HFCUSB_D_RX\n",
892 hw->name, __func__, fifon);
893 skb_trim(rx_skb, 0);
894 spin_unlock_irqrestore(&hw->lock, flags);
895 return;
896 }
897 }
898
899 skb_put_data(rx_skb, data, len);
900
901 if (hdlc) {
902
903 if (finish) {
904 if ((rx_skb->len > 3) &&
905 (!(rx_skb->data[rx_skb->len - 1]))) {
906 if (debug & DBG_HFC_FIFO_VERBOSE) {
907 printk(KERN_DEBUG "%s: %s: fifon(%i)"
908 " new RX len(%i): ",
909 hw->name, __func__, fifon,
910 rx_skb->len);
911 i = 0;
912 while (i < rx_skb->len)
913 printk("%02x ",
914 rx_skb->data[i++]);
915 printk("\n");
916 }
917
918
919 skb_trim(rx_skb, rx_skb->len - 3);
920
921 if (fifo->dch)
922 recv_Dchannel(fifo->dch);
923 if (fifo->bch)
924 recv_Bchannel(fifo->bch, MISDN_ID_ANY,
925 0);
926 if (fifo->ech)
927 recv_Echannel(fifo->ech,
928 &hw->dch);
929 } else {
930 if (debug & DBG_HFC_FIFO_VERBOSE) {
931 printk(KERN_DEBUG
932 "%s: CRC or minlen ERROR fifon(%i) "
933 "RX len(%i): ",
934 hw->name, fifon, rx_skb->len);
935 i = 0;
936 while (i < rx_skb->len)
937 printk("%02x ",
938 rx_skb->data[i++]);
939 printk("\n");
940 }
941 skb_trim(rx_skb, 0);
942 }
943 }
944 } else {
945
946 recv_Bchannel(fifo->bch, MISDN_ID_ANY, false);
947 }
948 spin_unlock_irqrestore(&hw->lock, flags);
949}
950
951static void
952fill_isoc_urb(struct urb *urb, struct usb_device *dev, unsigned int pipe,
953 void *buf, int num_packets, int packet_size, int interval,
954 usb_complete_t complete, void *context)
955{
956 int k;
957
958 usb_fill_bulk_urb(urb, dev, pipe, buf, packet_size * num_packets,
959 complete, context);
960
961 urb->number_of_packets = num_packets;
962 urb->transfer_flags = URB_ISO_ASAP;
963 urb->actual_length = 0;
964 urb->interval = interval;
965
966 for (k = 0; k < num_packets; k++) {
967 urb->iso_frame_desc[k].offset = packet_size * k;
968 urb->iso_frame_desc[k].length = packet_size;
969 urb->iso_frame_desc[k].actual_length = 0;
970 }
971}
972
973
974static void
975rx_iso_complete(struct urb *urb)
976{
977 struct iso_urb *context_iso_urb = (struct iso_urb *) urb->context;
978 struct usb_fifo *fifo = context_iso_urb->owner_fifo;
979 struct hfcsusb *hw = fifo->hw;
980 int k, len, errcode, offset, num_isoc_packets, fifon, maxlen,
981 status, iso_status, i;
982 __u8 *buf;
983 static __u8 eof[8];
984 __u8 s0_state;
985 unsigned long flags;
986
987 fifon = fifo->fifonum;
988 status = urb->status;
989
990 spin_lock_irqsave(&hw->lock, flags);
991 if (fifo->stop_gracefull) {
992 fifo->stop_gracefull = 0;
993 fifo->active = 0;
994 spin_unlock_irqrestore(&hw->lock, flags);
995 return;
996 }
997 spin_unlock_irqrestore(&hw->lock, flags);
998
999
1000
1001
1002
1003 if (status == -EXDEV) {
1004 if (debug & DEBUG_HW)
1005 printk(KERN_DEBUG "%s: %s: with -EXDEV "
1006 "urb->status %d, fifonum %d\n",
1007 hw->name, __func__, status, fifon);
1008
1009
1010 status = 0;
1011 }
1012
1013 s0_state = 0;
1014 if (fifo->active && !status) {
1015 num_isoc_packets = iso_packets[fifon];
1016 maxlen = fifo->usb_packet_maxlen;
1017
1018 for (k = 0; k < num_isoc_packets; ++k) {
1019 len = urb->iso_frame_desc[k].actual_length;
1020 offset = urb->iso_frame_desc[k].offset;
1021 buf = context_iso_urb->buffer + offset;
1022 iso_status = urb->iso_frame_desc[k].status;
1023
1024 if (iso_status && (debug & DBG_HFC_FIFO_VERBOSE)) {
1025 printk(KERN_DEBUG "%s: %s: "
1026 "ISO packet %i, status: %i\n",
1027 hw->name, __func__, k, iso_status);
1028 }
1029
1030
1031 if ((fifon == HFCUSB_D_RX) &&
1032 (debug & DBG_HFC_USB_VERBOSE)) {
1033 printk(KERN_DEBUG
1034 "%s: %s: %d (%d/%d) len(%d) ",
1035 hw->name, __func__, urb->start_frame,
1036 k, num_isoc_packets - 1,
1037 len);
1038 for (i = 0; i < len; i++)
1039 printk("%x ", buf[i]);
1040 printk("\n");
1041 }
1042
1043 if (!iso_status) {
1044 if (fifo->last_urblen != maxlen) {
1045
1046
1047
1048
1049
1050 hw->threshold_mask = buf[1];
1051
1052 if (fifon == HFCUSB_D_RX)
1053 s0_state = (buf[0] >> 4);
1054
1055 eof[fifon] = buf[0] & 1;
1056 if (len > 2)
1057 hfcsusb_rx_frame(fifo, buf + 2,
1058 len - 2, (len < maxlen)
1059 ? eof[fifon] : 0);
1060 } else
1061 hfcsusb_rx_frame(fifo, buf, len,
1062 (len < maxlen) ?
1063 eof[fifon] : 0);
1064 fifo->last_urblen = len;
1065 }
1066 }
1067
1068
1069 if ((s0_state) && (hw->initdone) &&
1070 (s0_state != hw->dch.state)) {
1071 hw->dch.state = s0_state;
1072 schedule_event(&hw->dch, FLG_PHCHANGE);
1073 }
1074
1075 fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe,
1076 context_iso_urb->buffer, num_isoc_packets,
1077 fifo->usb_packet_maxlen, fifo->intervall,
1078 (usb_complete_t)rx_iso_complete, urb->context);
1079 errcode = usb_submit_urb(urb, GFP_ATOMIC);
1080 if (errcode < 0) {
1081 if (debug & DEBUG_HW)
1082 printk(KERN_DEBUG "%s: %s: error submitting "
1083 "ISO URB: %d\n",
1084 hw->name, __func__, errcode);
1085 }
1086 } else {
1087 if (status && (debug & DBG_HFC_URB_INFO))
1088 printk(KERN_DEBUG "%s: %s: rx_iso_complete : "
1089 "urb->status %d, fifonum %d\n",
1090 hw->name, __func__, status, fifon);
1091 }
1092}
1093
1094
1095static void
1096rx_int_complete(struct urb *urb)
1097{
1098 int len, status, i;
1099 __u8 *buf, maxlen, fifon;
1100 struct usb_fifo *fifo = (struct usb_fifo *) urb->context;
1101 struct hfcsusb *hw = fifo->hw;
1102 static __u8 eof[8];
1103 unsigned long flags;
1104
1105 spin_lock_irqsave(&hw->lock, flags);
1106 if (fifo->stop_gracefull) {
1107 fifo->stop_gracefull = 0;
1108 fifo->active = 0;
1109 spin_unlock_irqrestore(&hw->lock, flags);
1110 return;
1111 }
1112 spin_unlock_irqrestore(&hw->lock, flags);
1113
1114 fifon = fifo->fifonum;
1115 if ((!fifo->active) || (urb->status)) {
1116 if (debug & DBG_HFC_URB_ERROR)
1117 printk(KERN_DEBUG
1118 "%s: %s: RX-Fifo %i is going down (%i)\n",
1119 hw->name, __func__, fifon, urb->status);
1120
1121 fifo->urb->interval = 0;
1122 return;
1123 }
1124 len = urb->actual_length;
1125 buf = fifo->buffer;
1126 maxlen = fifo->usb_packet_maxlen;
1127
1128
1129 if ((fifon == HFCUSB_D_RX) && (debug & DBG_HFC_USB_VERBOSE)) {
1130 printk(KERN_DEBUG "%s: %s: D RX INT len(%d) ",
1131 hw->name, __func__, len);
1132 for (i = 0; i < len; i++)
1133 printk("%02x ", buf[i]);
1134 printk("\n");
1135 }
1136
1137 if (fifo->last_urblen != fifo->usb_packet_maxlen) {
1138
1139 hw->threshold_mask = buf[1];
1140
1141
1142 if (hw->initdone && ((buf[0] >> 4) != hw->dch.state)) {
1143 hw->dch.state = (buf[0] >> 4);
1144 schedule_event(&hw->dch, FLG_PHCHANGE);
1145 }
1146
1147 eof[fifon] = buf[0] & 1;
1148
1149 if (len > 2)
1150 hfcsusb_rx_frame(fifo, buf + 2,
1151 urb->actual_length - 2,
1152 (len < maxlen) ? eof[fifon] : 0);
1153 } else {
1154 hfcsusb_rx_frame(fifo, buf, urb->actual_length,
1155 (len < maxlen) ? eof[fifon] : 0);
1156 }
1157 fifo->last_urblen = urb->actual_length;
1158
1159 status = usb_submit_urb(urb, GFP_ATOMIC);
1160 if (status) {
1161 if (debug & DEBUG_HW)
1162 printk(KERN_DEBUG "%s: %s: error resubmitting USB\n",
1163 hw->name, __func__);
1164 }
1165}
1166
1167
1168static void
1169tx_iso_complete(struct urb *urb)
1170{
1171 struct iso_urb *context_iso_urb = (struct iso_urb *) urb->context;
1172 struct usb_fifo *fifo = context_iso_urb->owner_fifo;
1173 struct hfcsusb *hw = fifo->hw;
1174 struct sk_buff *tx_skb;
1175 int k, tx_offset, num_isoc_packets, sink, remain, current_len,
1176 errcode, hdlc, i;
1177 int *tx_idx;
1178 int frame_complete, fifon, status, fillempty = 0;
1179 __u8 threshbit, *p;
1180 unsigned long flags;
1181
1182 spin_lock_irqsave(&hw->lock, flags);
1183 if (fifo->stop_gracefull) {
1184 fifo->stop_gracefull = 0;
1185 fifo->active = 0;
1186 spin_unlock_irqrestore(&hw->lock, flags);
1187 return;
1188 }
1189
1190 if (fifo->dch) {
1191 tx_skb = fifo->dch->tx_skb;
1192 tx_idx = &fifo->dch->tx_idx;
1193 hdlc = 1;
1194 } else if (fifo->bch) {
1195 tx_skb = fifo->bch->tx_skb;
1196 tx_idx = &fifo->bch->tx_idx;
1197 hdlc = test_bit(FLG_HDLC, &fifo->bch->Flags);
1198 if (!tx_skb && !hdlc &&
1199 test_bit(FLG_FILLEMPTY, &fifo->bch->Flags))
1200 fillempty = 1;
1201 } else {
1202 printk(KERN_DEBUG "%s: %s: neither BCH nor DCH\n",
1203 hw->name, __func__);
1204 spin_unlock_irqrestore(&hw->lock, flags);
1205 return;
1206 }
1207
1208 fifon = fifo->fifonum;
1209 status = urb->status;
1210
1211 tx_offset = 0;
1212
1213
1214
1215
1216
1217 if (status == -EXDEV) {
1218 if (debug & DBG_HFC_URB_ERROR)
1219 printk(KERN_DEBUG "%s: %s: "
1220 "-EXDEV (%i) fifon (%d)\n",
1221 hw->name, __func__, status, fifon);
1222
1223
1224 status = 0;
1225 }
1226
1227 if (fifo->active && !status) {
1228
1229 threshbit = (hw->threshold_mask & (1 << fifon));
1230 num_isoc_packets = iso_packets[fifon];
1231
1232
1233 if (fifon >= HFCUSB_D_TX)
1234 sink = (threshbit) ? SINK_DMIN : SINK_DMAX;
1235 else
1236 sink = (threshbit) ? SINK_MIN : SINK_MAX;
1237 fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe,
1238 context_iso_urb->buffer, num_isoc_packets,
1239 fifo->usb_packet_maxlen, fifo->intervall,
1240 (usb_complete_t)tx_iso_complete, urb->context);
1241 memset(context_iso_urb->buffer, 0,
1242 sizeof(context_iso_urb->buffer));
1243 frame_complete = 0;
1244
1245 for (k = 0; k < num_isoc_packets; ++k) {
1246
1247 if (debug & DBG_HFC_URB_ERROR) {
1248 errcode = urb->iso_frame_desc[k].status;
1249 if (errcode) {
1250 printk(KERN_DEBUG "%s: %s: "
1251 "ISO packet %i, status: %i\n",
1252 hw->name, __func__, k, errcode);
1253 }
1254 }
1255
1256
1257 if (tx_skb)
1258 remain = tx_skb->len - *tx_idx;
1259 else if (fillempty)
1260 remain = 15;
1261 else
1262 remain = 0;
1263
1264 if (remain > 0) {
1265 fifo->bit_line -= sink;
1266 current_len = (0 - fifo->bit_line) / 8;
1267 if (current_len > 14)
1268 current_len = 14;
1269 if (current_len < 0)
1270 current_len = 0;
1271 if (remain < current_len)
1272 current_len = remain;
1273
1274
1275 fifo->bit_line += current_len * 8;
1276
1277 context_iso_urb->buffer[tx_offset] = 0;
1278 if (current_len == remain) {
1279 if (hdlc) {
1280
1281 context_iso_urb->
1282 buffer[tx_offset] = 1;
1283
1284
1285 fifo->bit_line += 32;
1286 }
1287 frame_complete = 1;
1288 }
1289
1290
1291 p = context_iso_urb->buffer + tx_offset + 1;
1292 if (fillempty) {
1293 memset(p, fifo->bch->fill[0],
1294 current_len);
1295 } else {
1296 memcpy(p, (tx_skb->data + *tx_idx),
1297 current_len);
1298 *tx_idx += current_len;
1299 }
1300 urb->iso_frame_desc[k].offset = tx_offset;
1301 urb->iso_frame_desc[k].length = current_len + 1;
1302
1303
1304 if ((fifon == HFCUSB_D_RX) && !fillempty &&
1305 (debug & DBG_HFC_USB_VERBOSE)) {
1306 printk(KERN_DEBUG
1307 "%s: %s (%d/%d) offs(%d) len(%d) ",
1308 hw->name, __func__,
1309 k, num_isoc_packets - 1,
1310 urb->iso_frame_desc[k].offset,
1311 urb->iso_frame_desc[k].length);
1312
1313 for (i = urb->iso_frame_desc[k].offset;
1314 i < (urb->iso_frame_desc[k].offset
1315 + urb->iso_frame_desc[k].length);
1316 i++)
1317 printk("%x ",
1318 context_iso_urb->buffer[i]);
1319
1320 printk(" skb->len(%i) tx-idx(%d)\n",
1321 tx_skb->len, *tx_idx);
1322 }
1323
1324 tx_offset += (current_len + 1);
1325 } else {
1326 urb->iso_frame_desc[k].offset = tx_offset++;
1327 urb->iso_frame_desc[k].length = 1;
1328
1329 fifo->bit_line -= sink;
1330 if (fifo->bit_line < BITLINE_INF)
1331 fifo->bit_line = BITLINE_INF;
1332 }
1333
1334 if (frame_complete) {
1335 frame_complete = 0;
1336
1337 if (debug & DBG_HFC_FIFO_VERBOSE) {
1338 printk(KERN_DEBUG "%s: %s: "
1339 "fifon(%i) new TX len(%i): ",
1340 hw->name, __func__,
1341 fifon, tx_skb->len);
1342 i = 0;
1343 while (i < tx_skb->len)
1344 printk("%02x ",
1345 tx_skb->data[i++]);
1346 printk("\n");
1347 }
1348
1349 dev_kfree_skb(tx_skb);
1350 tx_skb = NULL;
1351 if (fifo->dch && get_next_dframe(fifo->dch))
1352 tx_skb = fifo->dch->tx_skb;
1353 else if (fifo->bch &&
1354 get_next_bframe(fifo->bch))
1355 tx_skb = fifo->bch->tx_skb;
1356 }
1357 }
1358 errcode = usb_submit_urb(urb, GFP_ATOMIC);
1359 if (errcode < 0) {
1360 if (debug & DEBUG_HW)
1361 printk(KERN_DEBUG
1362 "%s: %s: error submitting ISO URB: %d \n",
1363 hw->name, __func__, errcode);
1364 }
1365
1366
1367
1368
1369
1370
1371 if ((fifon == HFCUSB_D_TX) && (hw->protocol == ISDN_P_NT_S0)
1372 && (hw->timers & NT_ACTIVATION_TIMER)) {
1373 if ((--hw->nt_timer) < 0)
1374 schedule_event(&hw->dch, FLG_PHCHANGE);
1375 }
1376
1377 } else {
1378 if (status && (debug & DBG_HFC_URB_ERROR))
1379 printk(KERN_DEBUG "%s: %s: urb->status %s (%i)"
1380 "fifonum=%d\n",
1381 hw->name, __func__,
1382 symbolic(urb_errlist, status), status, fifon);
1383 }
1384 spin_unlock_irqrestore(&hw->lock, flags);
1385}
1386
1387
1388
1389
1390
1391static int
1392start_isoc_chain(struct usb_fifo *fifo, int num_packets_per_urb,
1393 usb_complete_t complete, int packet_size)
1394{
1395 struct hfcsusb *hw = fifo->hw;
1396 int i, k, errcode;
1397
1398 if (debug)
1399 printk(KERN_DEBUG "%s: %s: fifo %i\n",
1400 hw->name, __func__, fifo->fifonum);
1401
1402
1403 for (i = 0; i < 2; i++) {
1404 if (!(fifo->iso[i].urb)) {
1405 fifo->iso[i].urb =
1406 usb_alloc_urb(num_packets_per_urb, GFP_KERNEL);
1407 if (!(fifo->iso[i].urb)) {
1408 printk(KERN_DEBUG
1409 "%s: %s: alloc urb for fifo %i failed",
1410 hw->name, __func__, fifo->fifonum);
1411 }
1412 fifo->iso[i].owner_fifo = (struct usb_fifo *) fifo;
1413 fifo->iso[i].indx = i;
1414
1415
1416 if (ISO_BUFFER_SIZE >=
1417 (fifo->usb_packet_maxlen *
1418 num_packets_per_urb)) {
1419 fill_isoc_urb(fifo->iso[i].urb,
1420 fifo->hw->dev, fifo->pipe,
1421 fifo->iso[i].buffer,
1422 num_packets_per_urb,
1423 fifo->usb_packet_maxlen,
1424 fifo->intervall, complete,
1425 &fifo->iso[i]);
1426 memset(fifo->iso[i].buffer, 0,
1427 sizeof(fifo->iso[i].buffer));
1428
1429 for (k = 0; k < num_packets_per_urb; k++) {
1430 fifo->iso[i].urb->
1431 iso_frame_desc[k].offset =
1432 k * packet_size;
1433 fifo->iso[i].urb->
1434 iso_frame_desc[k].length =
1435 packet_size;
1436 }
1437 } else {
1438 printk(KERN_DEBUG
1439 "%s: %s: ISO Buffer size to small!\n",
1440 hw->name, __func__);
1441 }
1442 }
1443 fifo->bit_line = BITLINE_INF;
1444
1445 errcode = usb_submit_urb(fifo->iso[i].urb, GFP_KERNEL);
1446 fifo->active = (errcode >= 0) ? 1 : 0;
1447 fifo->stop_gracefull = 0;
1448 if (errcode < 0) {
1449 printk(KERN_DEBUG "%s: %s: %s URB nr:%d\n",
1450 hw->name, __func__,
1451 symbolic(urb_errlist, errcode), i);
1452 }
1453 }
1454 return fifo->active;
1455}
1456
1457static void
1458stop_iso_gracefull(struct usb_fifo *fifo)
1459{
1460 struct hfcsusb *hw = fifo->hw;
1461 int i, timeout;
1462 u_long flags;
1463
1464 for (i = 0; i < 2; i++) {
1465 spin_lock_irqsave(&hw->lock, flags);
1466 if (debug)
1467 printk(KERN_DEBUG "%s: %s for fifo %i.%i\n",
1468 hw->name, __func__, fifo->fifonum, i);
1469 fifo->stop_gracefull = 1;
1470 spin_unlock_irqrestore(&hw->lock, flags);
1471 }
1472
1473 for (i = 0; i < 2; i++) {
1474 timeout = 3;
1475 while (fifo->stop_gracefull && timeout--)
1476 schedule_timeout_interruptible((HZ / 1000) * 16);
1477 if (debug && fifo->stop_gracefull)
1478 printk(KERN_DEBUG "%s: ERROR %s for fifo %i.%i\n",
1479 hw->name, __func__, fifo->fifonum, i);
1480 }
1481}
1482
1483static void
1484stop_int_gracefull(struct usb_fifo *fifo)
1485{
1486 struct hfcsusb *hw = fifo->hw;
1487 int timeout;
1488 u_long flags;
1489
1490 spin_lock_irqsave(&hw->lock, flags);
1491 if (debug)
1492 printk(KERN_DEBUG "%s: %s for fifo %i\n",
1493 hw->name, __func__, fifo->fifonum);
1494 fifo->stop_gracefull = 1;
1495 spin_unlock_irqrestore(&hw->lock, flags);
1496
1497 timeout = 3;
1498 while (fifo->stop_gracefull && timeout--)
1499 schedule_timeout_interruptible((HZ / 1000) * 3);
1500 if (debug && fifo->stop_gracefull)
1501 printk(KERN_DEBUG "%s: ERROR %s for fifo %i\n",
1502 hw->name, __func__, fifo->fifonum);
1503}
1504
1505
1506static void
1507start_int_fifo(struct usb_fifo *fifo)
1508{
1509 struct hfcsusb *hw = fifo->hw;
1510 int errcode;
1511
1512 if (debug)
1513 printk(KERN_DEBUG "%s: %s: INT IN fifo:%d\n",
1514 hw->name, __func__, fifo->fifonum);
1515
1516 if (!fifo->urb) {
1517 fifo->urb = usb_alloc_urb(0, GFP_KERNEL);
1518 if (!fifo->urb)
1519 return;
1520 }
1521 usb_fill_int_urb(fifo->urb, fifo->hw->dev, fifo->pipe,
1522 fifo->buffer, fifo->usb_packet_maxlen,
1523 (usb_complete_t)rx_int_complete, fifo, fifo->intervall);
1524 fifo->active = 1;
1525 fifo->stop_gracefull = 0;
1526 errcode = usb_submit_urb(fifo->urb, GFP_KERNEL);
1527 if (errcode) {
1528 printk(KERN_DEBUG "%s: %s: submit URB: status:%i\n",
1529 hw->name, __func__, errcode);
1530 fifo->active = 0;
1531 }
1532}
1533
1534static void
1535setPortMode(struct hfcsusb *hw)
1536{
1537 if (debug & DEBUG_HW)
1538 printk(KERN_DEBUG "%s: %s %s\n", hw->name, __func__,
1539 (hw->protocol == ISDN_P_TE_S0) ? "TE" : "NT");
1540
1541 if (hw->protocol == ISDN_P_TE_S0) {
1542 write_reg(hw, HFCUSB_SCTRL, 0x40);
1543 write_reg(hw, HFCUSB_SCTRL_E, 0x00);
1544 write_reg(hw, HFCUSB_CLKDEL, CLKDEL_TE);
1545 write_reg(hw, HFCUSB_STATES, 3 | 0x10);
1546 write_reg(hw, HFCUSB_STATES, 3);
1547 } else {
1548 write_reg(hw, HFCUSB_SCTRL, 0x44);
1549 write_reg(hw, HFCUSB_SCTRL_E, 0x09);
1550 write_reg(hw, HFCUSB_CLKDEL, CLKDEL_NT);
1551 write_reg(hw, HFCUSB_STATES, 1 | 0x10);
1552 write_reg(hw, HFCUSB_STATES, 1);
1553 }
1554}
1555
1556static void
1557reset_hfcsusb(struct hfcsusb *hw)
1558{
1559 struct usb_fifo *fifo;
1560 int i;
1561
1562 if (debug & DEBUG_HW)
1563 printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
1564
1565
1566 write_reg(hw, HFCUSB_CIRM, 8);
1567
1568
1569 write_reg(hw, HFCUSB_CIRM, 0x10);
1570
1571
1572 write_reg(hw, HFCUSB_USB_SIZE, (hw->packet_size / 8) |
1573 ((hw->packet_size / 8) << 4));
1574
1575
1576 write_reg(hw, HFCUSB_USB_SIZE_I, hw->iso_packet_size);
1577
1578
1579 write_reg(hw, HFCUSB_MST_MODE1, 0);
1580 write_reg(hw, HFCUSB_MST_MODE0, 1);
1581
1582
1583 write_reg(hw, HFCUSB_F_THRES,
1584 (HFCUSB_TX_THRESHOLD / 8) | ((HFCUSB_RX_THRESHOLD / 8) << 4));
1585
1586 fifo = hw->fifos;
1587 for (i = 0; i < HFCUSB_NUM_FIFOS; i++) {
1588 write_reg(hw, HFCUSB_FIFO, i);
1589 fifo[i].max_size =
1590 (i <= HFCUSB_B2_RX) ? MAX_BCH_SIZE : MAX_DFRAME_LEN;
1591 fifo[i].last_urblen = 0;
1592
1593
1594 write_reg(hw, HFCUSB_HDLC_PAR, ((i <= HFCUSB_B2_RX) ? 0 : 2));
1595
1596
1597 if (i == HFCUSB_D_TX)
1598 write_reg(hw, HFCUSB_CON_HDLC,
1599 (hw->protocol == ISDN_P_NT_S0) ? 0x08 : 0x09);
1600 else
1601 write_reg(hw, HFCUSB_CON_HDLC, 0x08);
1602 write_reg(hw, HFCUSB_INC_RES_F, 2);
1603 }
1604
1605 write_reg(hw, HFCUSB_SCTRL_R, 0);
1606 handle_led(hw, LED_POWER_ON);
1607}
1608
1609
1610static void
1611hfcsusb_start_endpoint(struct hfcsusb *hw, int channel)
1612{
1613
1614 if ((channel == HFC_CHAN_D) && (hw->fifos[HFCUSB_D_RX].active))
1615 return;
1616 if ((channel == HFC_CHAN_B1) && (hw->fifos[HFCUSB_B1_RX].active))
1617 return;
1618 if ((channel == HFC_CHAN_B2) && (hw->fifos[HFCUSB_B2_RX].active))
1619 return;
1620 if ((channel == HFC_CHAN_E) && (hw->fifos[HFCUSB_PCM_RX].active))
1621 return;
1622
1623
1624 if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO)
1625 start_int_fifo(hw->fifos + channel * 2 + 1);
1626
1627
1628 if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO) {
1629 switch (channel) {
1630 case HFC_CHAN_D:
1631 start_isoc_chain(hw->fifos + HFCUSB_D_RX,
1632 ISOC_PACKETS_D,
1633 (usb_complete_t)rx_iso_complete,
1634 16);
1635 break;
1636 case HFC_CHAN_E:
1637 start_isoc_chain(hw->fifos + HFCUSB_PCM_RX,
1638 ISOC_PACKETS_D,
1639 (usb_complete_t)rx_iso_complete,
1640 16);
1641 break;
1642 case HFC_CHAN_B1:
1643 start_isoc_chain(hw->fifos + HFCUSB_B1_RX,
1644 ISOC_PACKETS_B,
1645 (usb_complete_t)rx_iso_complete,
1646 16);
1647 break;
1648 case HFC_CHAN_B2:
1649 start_isoc_chain(hw->fifos + HFCUSB_B2_RX,
1650 ISOC_PACKETS_B,
1651 (usb_complete_t)rx_iso_complete,
1652 16);
1653 break;
1654 }
1655 }
1656
1657
1658 switch (channel) {
1659 case HFC_CHAN_D:
1660 start_isoc_chain(hw->fifos + HFCUSB_D_TX,
1661 ISOC_PACKETS_B,
1662 (usb_complete_t)tx_iso_complete, 1);
1663 break;
1664 case HFC_CHAN_B1:
1665 start_isoc_chain(hw->fifos + HFCUSB_B1_TX,
1666 ISOC_PACKETS_D,
1667 (usb_complete_t)tx_iso_complete, 1);
1668 break;
1669 case HFC_CHAN_B2:
1670 start_isoc_chain(hw->fifos + HFCUSB_B2_TX,
1671 ISOC_PACKETS_B,
1672 (usb_complete_t)tx_iso_complete, 1);
1673 break;
1674 }
1675}
1676
1677
1678static void
1679hfcsusb_stop_endpoint(struct hfcsusb *hw, int channel)
1680{
1681
1682 if ((channel == HFC_CHAN_D) && (!hw->fifos[HFCUSB_D_RX].active))
1683 return;
1684 if ((channel == HFC_CHAN_B1) && (!hw->fifos[HFCUSB_B1_RX].active))
1685 return;
1686 if ((channel == HFC_CHAN_B2) && (!hw->fifos[HFCUSB_B2_RX].active))
1687 return;
1688 if ((channel == HFC_CHAN_E) && (!hw->fifos[HFCUSB_PCM_RX].active))
1689 return;
1690
1691
1692 if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO)
1693 stop_int_gracefull(hw->fifos + channel * 2 + 1);
1694
1695
1696 if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO)
1697 stop_iso_gracefull(hw->fifos + channel * 2 + 1);
1698
1699
1700 if (channel != HFC_CHAN_E)
1701 stop_iso_gracefull(hw->fifos + channel * 2);
1702}
1703
1704
1705
1706static int
1707setup_hfcsusb(struct hfcsusb *hw)
1708{
1709 u_char b;
1710
1711 if (debug & DBG_HFC_CALL_TRACE)
1712 printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
1713
1714
1715 if (read_reg_atomic(hw, HFCUSB_CHIP_ID, &b) != 1) {
1716 printk(KERN_DEBUG "%s: %s: cannot read chip id\n",
1717 hw->name, __func__);
1718 return 1;
1719 }
1720 if (b != HFCUSB_CHIPID) {
1721 printk(KERN_DEBUG "%s: %s: Invalid chip id 0x%02x\n",
1722 hw->name, __func__, b);
1723 return 1;
1724 }
1725
1726
1727 (void) usb_set_interface(hw->dev, hw->if_used, hw->alt_used);
1728
1729 hw->led_state = 0;
1730
1731
1732 hw->ctrl_read.bRequestType = 0xc0;
1733 hw->ctrl_read.bRequest = 1;
1734 hw->ctrl_read.wLength = cpu_to_le16(1);
1735 hw->ctrl_write.bRequestType = 0x40;
1736 hw->ctrl_write.bRequest = 0;
1737 hw->ctrl_write.wLength = 0;
1738 usb_fill_control_urb(hw->ctrl_urb, hw->dev, hw->ctrl_out_pipe,
1739 (u_char *)&hw->ctrl_write, NULL, 0,
1740 (usb_complete_t)ctrl_complete, hw);
1741
1742 reset_hfcsusb(hw);
1743 return 0;
1744}
1745
1746static void
1747release_hw(struct hfcsusb *hw)
1748{
1749 if (debug & DBG_HFC_CALL_TRACE)
1750 printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
1751
1752
1753
1754
1755
1756
1757 hfcsusb_stop_endpoint(hw, HFC_CHAN_D);
1758 hfcsusb_stop_endpoint(hw, HFC_CHAN_B1);
1759 hfcsusb_stop_endpoint(hw, HFC_CHAN_B2);
1760 if (hw->fifos[HFCUSB_PCM_RX].pipe)
1761 hfcsusb_stop_endpoint(hw, HFC_CHAN_E);
1762 if (hw->protocol == ISDN_P_TE_S0)
1763 l1_event(hw->dch.l1, CLOSE_CHANNEL);
1764
1765 mISDN_unregister_device(&hw->dch.dev);
1766 mISDN_freebchannel(&hw->bch[1]);
1767 mISDN_freebchannel(&hw->bch[0]);
1768 mISDN_freedchannel(&hw->dch);
1769
1770 if (hw->ctrl_urb) {
1771 usb_kill_urb(hw->ctrl_urb);
1772 usb_free_urb(hw->ctrl_urb);
1773 hw->ctrl_urb = NULL;
1774 }
1775
1776 if (hw->intf)
1777 usb_set_intfdata(hw->intf, NULL);
1778 list_del(&hw->list);
1779 kfree(hw);
1780 hw = NULL;
1781}
1782
1783static void
1784deactivate_bchannel(struct bchannel *bch)
1785{
1786 struct hfcsusb *hw = bch->hw;
1787 u_long flags;
1788
1789 if (bch->debug & DEBUG_HW)
1790 printk(KERN_DEBUG "%s: %s: bch->nr(%i)\n",
1791 hw->name, __func__, bch->nr);
1792
1793 spin_lock_irqsave(&hw->lock, flags);
1794 mISDN_clear_bchannel(bch);
1795 spin_unlock_irqrestore(&hw->lock, flags);
1796 hfcsusb_setup_bch(bch, ISDN_P_NONE);
1797 hfcsusb_stop_endpoint(hw, bch->nr - 1);
1798}
1799
1800
1801
1802
1803static int
1804hfc_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
1805{
1806 struct bchannel *bch = container_of(ch, struct bchannel, ch);
1807 int ret = -EINVAL;
1808
1809 if (bch->debug & DEBUG_HW)
1810 printk(KERN_DEBUG "%s: cmd:%x %p\n", __func__, cmd, arg);
1811
1812 switch (cmd) {
1813 case HW_TESTRX_RAW:
1814 case HW_TESTRX_HDLC:
1815 case HW_TESTRX_OFF:
1816 ret = -EINVAL;
1817 break;
1818
1819 case CLOSE_CHANNEL:
1820 test_and_clear_bit(FLG_OPEN, &bch->Flags);
1821 deactivate_bchannel(bch);
1822 ch->protocol = ISDN_P_NONE;
1823 ch->peer = NULL;
1824 module_put(THIS_MODULE);
1825 ret = 0;
1826 break;
1827 case CONTROL_CHANNEL:
1828 ret = channel_bctrl(bch, arg);
1829 break;
1830 default:
1831 printk(KERN_WARNING "%s: unknown prim(%x)\n",
1832 __func__, cmd);
1833 }
1834 return ret;
1835}
1836
1837static int
1838setup_instance(struct hfcsusb *hw, struct device *parent)
1839{
1840 u_long flags;
1841 int err, i;
1842
1843 if (debug & DBG_HFC_CALL_TRACE)
1844 printk(KERN_DEBUG "%s: %s\n", hw->name, __func__);
1845
1846 spin_lock_init(&hw->ctrl_lock);
1847 spin_lock_init(&hw->lock);
1848
1849 mISDN_initdchannel(&hw->dch, MAX_DFRAME_LEN_L1, ph_state);
1850 hw->dch.debug = debug & 0xFFFF;
1851 hw->dch.hw = hw;
1852 hw->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0);
1853 hw->dch.dev.D.send = hfcusb_l2l1D;
1854 hw->dch.dev.D.ctrl = hfc_dctrl;
1855
1856
1857 if (hw->fifos[HFCUSB_PCM_RX].pipe)
1858 mISDN_initdchannel(&hw->ech, MAX_DFRAME_LEN_L1, NULL);
1859
1860 hw->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
1861 (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
1862 hw->dch.dev.nrbchan = 2;
1863 for (i = 0; i < 2; i++) {
1864 hw->bch[i].nr = i + 1;
1865 set_channelmap(i + 1, hw->dch.dev.channelmap);
1866 hw->bch[i].debug = debug;
1867 mISDN_initbchannel(&hw->bch[i], MAX_DATA_MEM, poll >> 1);
1868 hw->bch[i].hw = hw;
1869 hw->bch[i].ch.send = hfcusb_l2l1B;
1870 hw->bch[i].ch.ctrl = hfc_bctrl;
1871 hw->bch[i].ch.nr = i + 1;
1872 list_add(&hw->bch[i].ch.list, &hw->dch.dev.bchannels);
1873 }
1874
1875 hw->fifos[HFCUSB_B1_TX].bch = &hw->bch[0];
1876 hw->fifos[HFCUSB_B1_RX].bch = &hw->bch[0];
1877 hw->fifos[HFCUSB_B2_TX].bch = &hw->bch[1];
1878 hw->fifos[HFCUSB_B2_RX].bch = &hw->bch[1];
1879 hw->fifos[HFCUSB_D_TX].dch = &hw->dch;
1880 hw->fifos[HFCUSB_D_RX].dch = &hw->dch;
1881 hw->fifos[HFCUSB_PCM_RX].ech = &hw->ech;
1882 hw->fifos[HFCUSB_PCM_TX].ech = &hw->ech;
1883
1884 err = setup_hfcsusb(hw);
1885 if (err)
1886 goto out;
1887
1888 snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s.%d", DRIVER_NAME,
1889 hfcsusb_cnt + 1);
1890 printk(KERN_INFO "%s: registered as '%s'\n",
1891 DRIVER_NAME, hw->name);
1892
1893 err = mISDN_register_device(&hw->dch.dev, parent, hw->name);
1894 if (err)
1895 goto out;
1896
1897 hfcsusb_cnt++;
1898 write_lock_irqsave(&HFClock, flags);
1899 list_add_tail(&hw->list, &HFClist);
1900 write_unlock_irqrestore(&HFClock, flags);
1901 return 0;
1902
1903out:
1904 mISDN_freebchannel(&hw->bch[1]);
1905 mISDN_freebchannel(&hw->bch[0]);
1906 mISDN_freedchannel(&hw->dch);
1907 kfree(hw);
1908 return err;
1909}
1910
1911static int
1912hfcsusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1913{
1914 struct hfcsusb *hw;
1915 struct usb_device *dev = interface_to_usbdev(intf);
1916 struct usb_host_interface *iface = intf->cur_altsetting;
1917 struct usb_host_interface *iface_used = NULL;
1918 struct usb_host_endpoint *ep;
1919 struct hfcsusb_vdata *driver_info;
1920 int ifnum = iface->desc.bInterfaceNumber, i, idx, alt_idx,
1921 probe_alt_setting, vend_idx, cfg_used, *vcf, attr, cfg_found,
1922 ep_addr, cmptbl[16], small_match, iso_packet_size, packet_size,
1923 alt_used = 0;
1924
1925 vend_idx = 0xffff;
1926 for (i = 0; hfcsusb_idtab[i].idVendor; i++) {
1927 if ((le16_to_cpu(dev->descriptor.idVendor)
1928 == hfcsusb_idtab[i].idVendor) &&
1929 (le16_to_cpu(dev->descriptor.idProduct)
1930 == hfcsusb_idtab[i].idProduct)) {
1931 vend_idx = i;
1932 continue;
1933 }
1934 }
1935
1936 printk(KERN_DEBUG
1937 "%s: interface(%d) actalt(%d) minor(%d) vend_idx(%d)\n",
1938 __func__, ifnum, iface->desc.bAlternateSetting,
1939 intf->minor, vend_idx);
1940
1941 if (vend_idx == 0xffff) {
1942 printk(KERN_WARNING
1943 "%s: no valid vendor found in USB descriptor\n",
1944 __func__);
1945 return -EIO;
1946 }
1947
1948 alt_idx = 0;
1949 small_match = -1;
1950
1951
1952 iso_packet_size = 16;
1953 packet_size = 64;
1954
1955 while (alt_idx < intf->num_altsetting) {
1956 iface = intf->altsetting + alt_idx;
1957 probe_alt_setting = iface->desc.bAlternateSetting;
1958 cfg_used = 0;
1959
1960 while (validconf[cfg_used][0]) {
1961 cfg_found = 1;
1962 vcf = validconf[cfg_used];
1963 ep = iface->endpoint;
1964 memcpy(cmptbl, vcf, 16 * sizeof(int));
1965
1966
1967 for (i = 0; i < iface->desc.bNumEndpoints; i++) {
1968 ep_addr = ep->desc.bEndpointAddress;
1969
1970
1971 idx = ((ep_addr & 0x7f) - 1) * 2;
1972 if (ep_addr & 0x80)
1973 idx++;
1974 attr = ep->desc.bmAttributes;
1975
1976 if (cmptbl[idx] != EP_NOP) {
1977 if (cmptbl[idx] == EP_NUL)
1978 cfg_found = 0;
1979 if (attr == USB_ENDPOINT_XFER_INT
1980 && cmptbl[idx] == EP_INT)
1981 cmptbl[idx] = EP_NUL;
1982 if (attr == USB_ENDPOINT_XFER_BULK
1983 && cmptbl[idx] == EP_BLK)
1984 cmptbl[idx] = EP_NUL;
1985 if (attr == USB_ENDPOINT_XFER_ISOC
1986 && cmptbl[idx] == EP_ISO)
1987 cmptbl[idx] = EP_NUL;
1988
1989 if (attr == USB_ENDPOINT_XFER_INT &&
1990 ep->desc.bInterval < vcf[17]) {
1991 cfg_found = 0;
1992 }
1993 }
1994 ep++;
1995 }
1996
1997 for (i = 0; i < 16; i++)
1998 if (cmptbl[i] != EP_NOP && cmptbl[i] != EP_NUL)
1999 cfg_found = 0;
2000
2001 if (cfg_found) {
2002 if (small_match < cfg_used) {
2003 small_match = cfg_used;
2004 alt_used = probe_alt_setting;
2005 iface_used = iface;
2006 }
2007 }
2008 cfg_used++;
2009 }
2010 alt_idx++;
2011 }
2012
2013
2014 if (small_match == -1)
2015 return -EIO;
2016
2017 iface = iface_used;
2018 hw = kzalloc(sizeof(struct hfcsusb), GFP_KERNEL);
2019 if (!hw)
2020 return -ENOMEM;
2021 snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s", DRIVER_NAME);
2022
2023 ep = iface->endpoint;
2024 vcf = validconf[small_match];
2025
2026 for (i = 0; i < iface->desc.bNumEndpoints; i++) {
2027 struct usb_fifo *f;
2028
2029 ep_addr = ep->desc.bEndpointAddress;
2030
2031 idx = ((ep_addr & 0x7f) - 1) * 2;
2032 if (ep_addr & 0x80)
2033 idx++;
2034 f = &hw->fifos[idx & 7];
2035
2036
2037 if (vcf[idx] == EP_NOP || vcf[idx] == EP_NUL) {
2038 ep++;
2039 continue;
2040 }
2041 switch (ep->desc.bmAttributes) {
2042 case USB_ENDPOINT_XFER_INT:
2043 f->pipe = usb_rcvintpipe(dev,
2044 ep->desc.bEndpointAddress);
2045 f->usb_transfer_mode = USB_INT;
2046 packet_size = le16_to_cpu(ep->desc.wMaxPacketSize);
2047 break;
2048 case USB_ENDPOINT_XFER_BULK:
2049 if (ep_addr & 0x80)
2050 f->pipe = usb_rcvbulkpipe(dev,
2051 ep->desc.bEndpointAddress);
2052 else
2053 f->pipe = usb_sndbulkpipe(dev,
2054 ep->desc.bEndpointAddress);
2055 f->usb_transfer_mode = USB_BULK;
2056 packet_size = le16_to_cpu(ep->desc.wMaxPacketSize);
2057 break;
2058 case USB_ENDPOINT_XFER_ISOC:
2059 if (ep_addr & 0x80)
2060 f->pipe = usb_rcvisocpipe(dev,
2061 ep->desc.bEndpointAddress);
2062 else
2063 f->pipe = usb_sndisocpipe(dev,
2064 ep->desc.bEndpointAddress);
2065 f->usb_transfer_mode = USB_ISOC;
2066 iso_packet_size = le16_to_cpu(ep->desc.wMaxPacketSize);
2067 break;
2068 default:
2069 f->pipe = 0;
2070 }
2071
2072 if (f->pipe) {
2073 f->fifonum = idx & 7;
2074 f->hw = hw;
2075 f->usb_packet_maxlen =
2076 le16_to_cpu(ep->desc.wMaxPacketSize);
2077 f->intervall = ep->desc.bInterval;
2078 }
2079 ep++;
2080 }
2081 hw->dev = dev;
2082 hw->if_used = ifnum;
2083 hw->alt_used = alt_used;
2084 hw->ctrl_paksize = dev->descriptor.bMaxPacketSize0;
2085 hw->cfg_used = vcf[16];
2086 hw->vend_idx = vend_idx;
2087 hw->packet_size = packet_size;
2088 hw->iso_packet_size = iso_packet_size;
2089
2090
2091 hw->ctrl_in_pipe = usb_rcvctrlpipe(hw->dev, 0);
2092 hw->ctrl_out_pipe = usb_sndctrlpipe(hw->dev, 0);
2093
2094 driver_info = (struct hfcsusb_vdata *)
2095 hfcsusb_idtab[vend_idx].driver_info;
2096
2097 hw->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
2098 if (!hw->ctrl_urb) {
2099 pr_warn("%s: No memory for control urb\n",
2100 driver_info->vend_name);
2101 kfree(hw);
2102 return -ENOMEM;
2103 }
2104
2105 pr_info("%s: %s: detected \"%s\" (%s, if=%d alt=%d)\n",
2106 hw->name, __func__, driver_info->vend_name,
2107 conf_str[small_match], ifnum, alt_used);
2108
2109 if (setup_instance(hw, dev->dev.parent))
2110 return -EIO;
2111
2112 hw->intf = intf;
2113 usb_set_intfdata(hw->intf, hw);
2114 return 0;
2115}
2116
2117
2118static void
2119hfcsusb_disconnect(struct usb_interface *intf)
2120{
2121 struct hfcsusb *hw = usb_get_intfdata(intf);
2122 struct hfcsusb *next;
2123 int cnt = 0;
2124
2125 printk(KERN_INFO "%s: device disconnected\n", hw->name);
2126
2127 handle_led(hw, LED_POWER_OFF);
2128 release_hw(hw);
2129
2130 list_for_each_entry_safe(hw, next, &HFClist, list)
2131 cnt++;
2132 if (!cnt)
2133 hfcsusb_cnt = 0;
2134
2135 usb_set_intfdata(intf, NULL);
2136}
2137
2138static struct usb_driver hfcsusb_drv = {
2139 .name = DRIVER_NAME,
2140 .id_table = hfcsusb_idtab,
2141 .probe = hfcsusb_probe,
2142 .disconnect = hfcsusb_disconnect,
2143 .disable_hub_initiated_lpm = 1,
2144};
2145
2146module_usb_driver(hfcsusb_drv);
2147
