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