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69f52adb KK |
1 | /* hfcsusb.c |
2 | * mISDN driver for Colognechip HFC-S USB chip | |
3 | * | |
4 | * Copyright 2001 by Peter Sprenger (sprenger@moving-bytes.de) | |
5 | * Copyright 2008 by Martin Bachem (info@bachem-it.com) | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2, or (at your option) | |
10 | * any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | * | |
21 | * | |
22 | * module params | |
23 | * debug=<n>, default=0, with n=0xHHHHGGGG | |
24 | * H - l1 driver flags described in hfcsusb.h | |
25 | * G - common mISDN debug flags described at mISDNhw.h | |
26 | * | |
27 | * poll=<n>, default 128 | |
28 | * n : burst size of PH_DATA_IND at transparent rx data | |
29 | * | |
30 | */ | |
31 | ||
32 | #include <linux/module.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/usb.h> | |
35 | #include <linux/mISDNhw.h> | |
36 | #include "hfcsusb.h" | |
37 | ||
6c2959aa | 38 | static const char *hfcsusb_rev = "Revision: 0.3.3 (socket), 2008-11-05"; |
69f52adb KK |
39 | |
40 | static unsigned int debug; | |
41 | static int poll = DEFAULT_TRANSP_BURST_SZ; | |
42 | ||
43 | static LIST_HEAD(HFClist); | |
44 | static DEFINE_RWLOCK(HFClock); | |
45 | ||
46 | ||
47 | MODULE_AUTHOR("Martin Bachem"); | |
48 | MODULE_LICENSE("GPL"); | |
49 | module_param(debug, uint, S_IRUGO | S_IWUSR); | |
50 | module_param(poll, int, 0); | |
51 | ||
52 | static int hfcsusb_cnt; | |
53 | ||
54 | /* some function prototypes */ | |
55 | static void hfcsusb_ph_command(struct hfcsusb *hw, u_char command); | |
56 | static void release_hw(struct hfcsusb *hw); | |
57 | static void reset_hfcsusb(struct hfcsusb *hw); | |
58 | static void setPortMode(struct hfcsusb *hw); | |
59 | static void hfcsusb_start_endpoint(struct hfcsusb *hw, int channel); | |
60 | static void hfcsusb_stop_endpoint(struct hfcsusb *hw, int channel); | |
61 | static int hfcsusb_setup_bch(struct bchannel *bch, int protocol); | |
62 | static void deactivate_bchannel(struct bchannel *bch); | |
63 | static void hfcsusb_ph_info(struct hfcsusb *hw); | |
64 | ||
65 | /* start next background transfer for control channel */ | |
66 | static void | |
67 | ctrl_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 | * queue a control transfer request to write HFC-S USB | |
88 | * chip register using CTRL resuest queue | |
89 | */ | |
90 | static 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 | return 1; | |
101 | buf = &hw->ctrl_buff[hw->ctrl_in_idx]; | |
102 | buf->hfcs_reg = reg; | |
103 | buf->reg_val = val; | |
104 | if (++hw->ctrl_in_idx >= HFC_CTRL_BUFSIZE) | |
105 | hw->ctrl_in_idx = 0; | |
106 | if (++hw->ctrl_cnt == 1) | |
107 | ctrl_start_transfer(hw); | |
108 | spin_unlock(&hw->ctrl_lock); | |
109 | ||
110 | return 0; | |
111 | } | |
112 | ||
113 | /* control completion routine handling background control cmds */ | |
114 | static void | |
115 | ctrl_complete(struct urb *urb) | |
116 | { | |
117 | struct hfcsusb *hw = (struct hfcsusb *) urb->context; | |
118 | struct ctrl_buf *buf; | |
119 | ||
120 | if (debug & DBG_HFC_CALL_TRACE) | |
121 | printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); | |
122 | ||
123 | urb->dev = hw->dev; | |
124 | if (hw->ctrl_cnt) { | |
125 | buf = &hw->ctrl_buff[hw->ctrl_out_idx]; | |
126 | hw->ctrl_cnt--; /* decrement actual count */ | |
127 | if (++hw->ctrl_out_idx >= HFC_CTRL_BUFSIZE) | |
128 | hw->ctrl_out_idx = 0; /* pointer wrap */ | |
129 | ||
130 | ctrl_start_transfer(hw); /* start next transfer */ | |
131 | } | |
132 | } | |
133 | ||
134 | /* handle LED bits */ | |
135 | static void | |
136 | set_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 | /* handle LED requests */ | |
152 | static void | |
153 | handle_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 | * Layer2 -> Layer 1 Bchannel data | |
208 | */ | |
209 | static int | |
210 | hfcusb_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 | /* | |
231 | * other l1 drivers don't send early confirms on | |
232 | * transp data, but hfcsusb does because tx_next | |
233 | * skb is needed in tx_iso_complete() | |
234 | */ | |
235 | queue_ch_frame(ch, PH_DATA_CNF, hh->id, NULL); | |
236 | ret = 0; | |
237 | } | |
238 | return ret; | |
239 | case PH_ACTIVATE_REQ: | |
240 | if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) { | |
241 | hfcsusb_start_endpoint(hw, bch->nr); | |
242 | ret = hfcsusb_setup_bch(bch, ch->protocol); | |
243 | } else | |
244 | ret = 0; | |
245 | if (!ret) | |
246 | _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, | |
247 | 0, NULL, GFP_KERNEL); | |
248 | break; | |
249 | case PH_DEACTIVATE_REQ: | |
250 | deactivate_bchannel(bch); | |
251 | _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, | |
252 | 0, NULL, GFP_KERNEL); | |
253 | ret = 0; | |
254 | break; | |
255 | } | |
256 | if (!ret) | |
257 | dev_kfree_skb(skb); | |
258 | return ret; | |
259 | } | |
260 | ||
261 | /* | |
262 | * send full D/B channel status information | |
263 | * as MPH_INFORMATION_IND | |
264 | */ | |
265 | static void | |
266 | hfcsusb_ph_info(struct hfcsusb *hw) | |
267 | { | |
268 | struct ph_info *phi; | |
269 | struct dchannel *dch = &hw->dch; | |
270 | int i; | |
271 | ||
272 | phi = kzalloc(sizeof(struct ph_info) + | |
273 | dch->dev.nrbchan * sizeof(struct ph_info_ch), GFP_ATOMIC); | |
274 | phi->dch.ch.protocol = hw->protocol; | |
275 | phi->dch.ch.Flags = dch->Flags; | |
276 | phi->dch.state = dch->state; | |
277 | phi->dch.num_bch = dch->dev.nrbchan; | |
278 | for (i = 0; i < dch->dev.nrbchan; i++) { | |
279 | phi->bch[i].protocol = hw->bch[i].ch.protocol; | |
280 | phi->bch[i].Flags = hw->bch[i].Flags; | |
281 | } | |
282 | _queue_data(&dch->dev.D, MPH_INFORMATION_IND, MISDN_ID_ANY, | |
283 | sizeof(struct ph_info_dch) + dch->dev.nrbchan * | |
284 | sizeof(struct ph_info_ch), phi, GFP_ATOMIC); | |
285 | } | |
286 | ||
287 | /* | |
288 | * Layer2 -> Layer 1 Dchannel data | |
289 | */ | |
290 | static int | |
291 | hfcusb_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb) | |
292 | { | |
293 | struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); | |
294 | struct dchannel *dch = container_of(dev, struct dchannel, dev); | |
295 | struct mISDNhead *hh = mISDN_HEAD_P(skb); | |
296 | struct hfcsusb *hw = dch->hw; | |
297 | int ret = -EINVAL; | |
298 | u_long flags; | |
299 | ||
300 | switch (hh->prim) { | |
301 | case PH_DATA_REQ: | |
302 | if (debug & DBG_HFC_CALL_TRACE) | |
303 | printk(KERN_DEBUG "%s: %s: PH_DATA_REQ\n", | |
304 | hw->name, __func__); | |
305 | ||
306 | spin_lock_irqsave(&hw->lock, flags); | |
307 | ret = dchannel_senddata(dch, skb); | |
308 | spin_unlock_irqrestore(&hw->lock, flags); | |
309 | if (ret > 0) { | |
310 | ret = 0; | |
311 | queue_ch_frame(ch, PH_DATA_CNF, hh->id, NULL); | |
312 | } | |
313 | break; | |
314 | ||
315 | case PH_ACTIVATE_REQ: | |
316 | if (debug & DBG_HFC_CALL_TRACE) | |
317 | printk(KERN_DEBUG "%s: %s: PH_ACTIVATE_REQ %s\n", | |
318 | hw->name, __func__, | |
319 | (hw->protocol == ISDN_P_NT_S0) ? "NT" : "TE"); | |
320 | ||
321 | if (hw->protocol == ISDN_P_NT_S0) { | |
322 | ret = 0; | |
323 | if (test_bit(FLG_ACTIVE, &dch->Flags)) { | |
324 | _queue_data(&dch->dev.D, | |
325 | PH_ACTIVATE_IND, MISDN_ID_ANY, 0, | |
326 | NULL, GFP_ATOMIC); | |
327 | } else { | |
328 | hfcsusb_ph_command(hw, | |
329 | HFC_L1_ACTIVATE_NT); | |
330 | test_and_set_bit(FLG_L2_ACTIVATED, | |
331 | &dch->Flags); | |
332 | } | |
333 | } else { | |
334 | hfcsusb_ph_command(hw, HFC_L1_ACTIVATE_TE); | |
335 | ret = l1_event(dch->l1, hh->prim); | |
336 | } | |
337 | break; | |
338 | ||
339 | case PH_DEACTIVATE_REQ: | |
340 | if (debug & DBG_HFC_CALL_TRACE) | |
341 | printk(KERN_DEBUG "%s: %s: PH_DEACTIVATE_REQ\n", | |
342 | hw->name, __func__); | |
343 | test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); | |
344 | ||
345 | if (hw->protocol == ISDN_P_NT_S0) { | |
346 | hfcsusb_ph_command(hw, HFC_L1_DEACTIVATE_NT); | |
347 | spin_lock_irqsave(&hw->lock, flags); | |
348 | skb_queue_purge(&dch->squeue); | |
349 | if (dch->tx_skb) { | |
350 | dev_kfree_skb(dch->tx_skb); | |
351 | dch->tx_skb = NULL; | |
352 | } | |
353 | dch->tx_idx = 0; | |
354 | if (dch->rx_skb) { | |
355 | dev_kfree_skb(dch->rx_skb); | |
356 | dch->rx_skb = NULL; | |
357 | } | |
358 | test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); | |
359 | spin_unlock_irqrestore(&hw->lock, flags); | |
360 | #ifdef FIXME | |
361 | if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags)) | |
362 | dchannel_sched_event(&hc->dch, D_CLEARBUSY); | |
363 | #endif | |
364 | ret = 0; | |
365 | } else | |
366 | ret = l1_event(dch->l1, hh->prim); | |
367 | break; | |
368 | case MPH_INFORMATION_REQ: | |
369 | hfcsusb_ph_info(hw); | |
370 | ret = 0; | |
371 | break; | |
372 | } | |
373 | ||
374 | return ret; | |
375 | } | |
376 | ||
377 | /* | |
378 | * Layer 1 callback function | |
379 | */ | |
380 | static int | |
381 | hfc_l1callback(struct dchannel *dch, u_int cmd) | |
382 | { | |
383 | struct hfcsusb *hw = dch->hw; | |
384 | ||
385 | if (debug & DBG_HFC_CALL_TRACE) | |
386 | printk(KERN_DEBUG "%s: %s cmd 0x%x\n", | |
387 | hw->name, __func__, cmd); | |
388 | ||
389 | switch (cmd) { | |
390 | case INFO3_P8: | |
391 | case INFO3_P10: | |
392 | case HW_RESET_REQ: | |
393 | case HW_POWERUP_REQ: | |
394 | break; | |
395 | ||
396 | case HW_DEACT_REQ: | |
397 | skb_queue_purge(&dch->squeue); | |
398 | if (dch->tx_skb) { | |
399 | dev_kfree_skb(dch->tx_skb); | |
400 | dch->tx_skb = NULL; | |
401 | } | |
402 | dch->tx_idx = 0; | |
403 | if (dch->rx_skb) { | |
404 | dev_kfree_skb(dch->rx_skb); | |
405 | dch->rx_skb = NULL; | |
406 | } | |
407 | test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); | |
408 | break; | |
409 | case PH_ACTIVATE_IND: | |
410 | test_and_set_bit(FLG_ACTIVE, &dch->Flags); | |
411 | _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, | |
412 | GFP_ATOMIC); | |
413 | break; | |
414 | case PH_DEACTIVATE_IND: | |
415 | test_and_clear_bit(FLG_ACTIVE, &dch->Flags); | |
416 | _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, | |
417 | GFP_ATOMIC); | |
418 | break; | |
419 | default: | |
420 | if (dch->debug & DEBUG_HW) | |
421 | printk(KERN_DEBUG "%s: %s: unknown cmd %x\n", | |
422 | hw->name, __func__, cmd); | |
423 | return -1; | |
424 | } | |
425 | hfcsusb_ph_info(hw); | |
426 | return 0; | |
427 | } | |
428 | ||
429 | static int | |
430 | open_dchannel(struct hfcsusb *hw, struct mISDNchannel *ch, | |
431 | struct channel_req *rq) | |
432 | { | |
433 | int err = 0; | |
434 | ||
435 | if (debug & DEBUG_HW_OPEN) | |
436 | printk(KERN_DEBUG "%s: %s: dev(%d) open addr(%i) from %p\n", | |
437 | hw->name, __func__, hw->dch.dev.id, rq->adr.channel, | |
438 | __builtin_return_address(0)); | |
439 | if (rq->protocol == ISDN_P_NONE) | |
440 | return -EINVAL; | |
441 | ||
442 | test_and_clear_bit(FLG_ACTIVE, &hw->dch.Flags); | |
443 | test_and_clear_bit(FLG_ACTIVE, &hw->ech.Flags); | |
444 | hfcsusb_start_endpoint(hw, HFC_CHAN_D); | |
445 | ||
446 | /* E-Channel logging */ | |
447 | if (rq->adr.channel == 1) { | |
448 | if (hw->fifos[HFCUSB_PCM_RX].pipe) { | |
449 | hfcsusb_start_endpoint(hw, HFC_CHAN_E); | |
450 | set_bit(FLG_ACTIVE, &hw->ech.Flags); | |
451 | _queue_data(&hw->ech.dev.D, PH_ACTIVATE_IND, | |
452 | MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); | |
453 | } else | |
454 | return -EINVAL; | |
455 | } | |
456 | ||
457 | if (!hw->initdone) { | |
458 | hw->protocol = rq->protocol; | |
459 | if (rq->protocol == ISDN_P_TE_S0) { | |
460 | err = create_l1(&hw->dch, hfc_l1callback); | |
461 | if (err) | |
462 | return err; | |
463 | } | |
464 | setPortMode(hw); | |
465 | ch->protocol = rq->protocol; | |
466 | hw->initdone = 1; | |
467 | } else { | |
468 | if (rq->protocol != ch->protocol) | |
469 | return -EPROTONOSUPPORT; | |
470 | } | |
471 | ||
472 | if (((ch->protocol == ISDN_P_NT_S0) && (hw->dch.state == 3)) || | |
473 | ((ch->protocol == ISDN_P_TE_S0) && (hw->dch.state == 7))) | |
474 | _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, | |
475 | 0, NULL, GFP_KERNEL); | |
476 | rq->ch = ch; | |
477 | if (!try_module_get(THIS_MODULE)) | |
478 | printk(KERN_WARNING "%s: %s: cannot get module\n", | |
479 | hw->name, __func__); | |
480 | return 0; | |
481 | } | |
482 | ||
483 | static int | |
484 | open_bchannel(struct hfcsusb *hw, struct channel_req *rq) | |
485 | { | |
486 | struct bchannel *bch; | |
487 | ||
488 | if (rq->adr.channel > 2) | |
489 | return -EINVAL; | |
490 | if (rq->protocol == ISDN_P_NONE) | |
491 | return -EINVAL; | |
492 | ||
493 | if (debug & DBG_HFC_CALL_TRACE) | |
494 | printk(KERN_DEBUG "%s: %s B%i\n", | |
495 | hw->name, __func__, rq->adr.channel); | |
496 | ||
497 | bch = &hw->bch[rq->adr.channel - 1]; | |
498 | if (test_and_set_bit(FLG_OPEN, &bch->Flags)) | |
499 | return -EBUSY; /* b-channel can be only open once */ | |
500 | test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags); | |
501 | bch->ch.protocol = rq->protocol; | |
502 | rq->ch = &bch->ch; | |
503 | ||
504 | /* start USB endpoint for bchannel */ | |
505 | if (rq->adr.channel == 1) | |
506 | hfcsusb_start_endpoint(hw, HFC_CHAN_B1); | |
507 | else | |
508 | hfcsusb_start_endpoint(hw, HFC_CHAN_B2); | |
509 | ||
510 | if (!try_module_get(THIS_MODULE)) | |
511 | printk(KERN_WARNING "%s: %s:cannot get module\n", | |
512 | hw->name, __func__); | |
513 | return 0; | |
514 | } | |
515 | ||
516 | static int | |
517 | channel_ctrl(struct hfcsusb *hw, struct mISDN_ctrl_req *cq) | |
518 | { | |
519 | int ret = 0; | |
520 | ||
521 | if (debug & DBG_HFC_CALL_TRACE) | |
522 | printk(KERN_DEBUG "%s: %s op(0x%x) channel(0x%x)\n", | |
523 | hw->name, __func__, (cq->op), (cq->channel)); | |
524 | ||
525 | switch (cq->op) { | |
526 | case MISDN_CTRL_GETOP: | |
527 | cq->op = MISDN_CTRL_LOOP | MISDN_CTRL_CONNECT | | |
528 | MISDN_CTRL_DISCONNECT; | |
529 | break; | |
530 | default: | |
531 | printk(KERN_WARNING "%s: %s: unknown Op %x\n", | |
532 | hw->name, __func__, cq->op); | |
533 | ret = -EINVAL; | |
534 | break; | |
535 | } | |
536 | return ret; | |
537 | } | |
538 | ||
539 | /* | |
540 | * device control function | |
541 | */ | |
542 | static int | |
543 | hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg) | |
544 | { | |
545 | struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); | |
546 | struct dchannel *dch = container_of(dev, struct dchannel, dev); | |
547 | struct hfcsusb *hw = dch->hw; | |
548 | struct channel_req *rq; | |
549 | int err = 0; | |
550 | ||
551 | if (dch->debug & DEBUG_HW) | |
552 | printk(KERN_DEBUG "%s: %s: cmd:%x %p\n", | |
553 | hw->name, __func__, cmd, arg); | |
554 | switch (cmd) { | |
555 | case OPEN_CHANNEL: | |
556 | rq = arg; | |
557 | if ((rq->protocol == ISDN_P_TE_S0) || | |
558 | (rq->protocol == ISDN_P_NT_S0)) | |
559 | err = open_dchannel(hw, ch, rq); | |
560 | else | |
561 | err = open_bchannel(hw, rq); | |
562 | if (!err) | |
563 | hw->open++; | |
564 | break; | |
565 | case CLOSE_CHANNEL: | |
566 | hw->open--; | |
567 | if (debug & DEBUG_HW_OPEN) | |
568 | printk(KERN_DEBUG | |
569 | "%s: %s: dev(%d) close from %p (open %d)\n", | |
570 | hw->name, __func__, hw->dch.dev.id, | |
571 | __builtin_return_address(0), hw->open); | |
572 | if (!hw->open) { | |
573 | hfcsusb_stop_endpoint(hw, HFC_CHAN_D); | |
574 | if (hw->fifos[HFCUSB_PCM_RX].pipe) | |
575 | hfcsusb_stop_endpoint(hw, HFC_CHAN_E); | |
576 | handle_led(hw, LED_POWER_ON); | |
577 | } | |
578 | module_put(THIS_MODULE); | |
579 | break; | |
580 | case CONTROL_CHANNEL: | |
581 | err = channel_ctrl(hw, arg); | |
582 | break; | |
583 | default: | |
584 | if (dch->debug & DEBUG_HW) | |
585 | printk(KERN_DEBUG "%s: %s: unknown command %x\n", | |
586 | hw->name, __func__, cmd); | |
587 | return -EINVAL; | |
588 | } | |
589 | return err; | |
590 | } | |
591 | ||
592 | /* | |
593 | * S0 TE state change event handler | |
594 | */ | |
595 | static void | |
596 | ph_state_te(struct dchannel *dch) | |
597 | { | |
598 | struct hfcsusb *hw = dch->hw; | |
599 | ||
600 | if (debug & DEBUG_HW) { | |
601 | if (dch->state <= HFC_MAX_TE_LAYER1_STATE) | |
602 | printk(KERN_DEBUG "%s: %s: %s\n", hw->name, __func__, | |
603 | HFC_TE_LAYER1_STATES[dch->state]); | |
604 | else | |
605 | printk(KERN_DEBUG "%s: %s: TE F%d\n", | |
606 | hw->name, __func__, dch->state); | |
607 | } | |
608 | ||
609 | switch (dch->state) { | |
610 | case 0: | |
611 | l1_event(dch->l1, HW_RESET_IND); | |
612 | break; | |
613 | case 3: | |
614 | l1_event(dch->l1, HW_DEACT_IND); | |
615 | break; | |
616 | case 5: | |
617 | case 8: | |
618 | l1_event(dch->l1, ANYSIGNAL); | |
619 | break; | |
620 | case 6: | |
621 | l1_event(dch->l1, INFO2); | |
622 | break; | |
623 | case 7: | |
624 | l1_event(dch->l1, INFO4_P8); | |
625 | break; | |
626 | } | |
627 | if (dch->state == 7) | |
628 | handle_led(hw, LED_S0_ON); | |
629 | else | |
630 | handle_led(hw, LED_S0_OFF); | |
631 | } | |
632 | ||
633 | /* | |
634 | * S0 NT state change event handler | |
635 | */ | |
636 | static void | |
637 | ph_state_nt(struct dchannel *dch) | |
638 | { | |
639 | struct hfcsusb *hw = dch->hw; | |
640 | ||
641 | if (debug & DEBUG_HW) { | |
642 | if (dch->state <= HFC_MAX_NT_LAYER1_STATE) | |
643 | printk(KERN_DEBUG "%s: %s: %s\n", | |
644 | hw->name, __func__, | |
645 | HFC_NT_LAYER1_STATES[dch->state]); | |
646 | ||
647 | else | |
648 | printk(KERN_INFO DRIVER_NAME "%s: %s: NT G%d\n", | |
649 | hw->name, __func__, dch->state); | |
650 | } | |
651 | ||
652 | switch (dch->state) { | |
653 | case (1): | |
654 | test_and_clear_bit(FLG_ACTIVE, &dch->Flags); | |
655 | test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); | |
656 | hw->nt_timer = 0; | |
657 | hw->timers &= ~NT_ACTIVATION_TIMER; | |
658 | handle_led(hw, LED_S0_OFF); | |
659 | break; | |
660 | ||
661 | case (2): | |
662 | if (hw->nt_timer < 0) { | |
663 | hw->nt_timer = 0; | |
664 | hw->timers &= ~NT_ACTIVATION_TIMER; | |
665 | hfcsusb_ph_command(dch->hw, HFC_L1_DEACTIVATE_NT); | |
666 | } else { | |
667 | hw->timers |= NT_ACTIVATION_TIMER; | |
668 | hw->nt_timer = NT_T1_COUNT; | |
669 | /* allow G2 -> G3 transition */ | |
670 | write_reg(hw, HFCUSB_STATES, 2 | HFCUSB_NT_G2_G3); | |
671 | } | |
672 | break; | |
673 | case (3): | |
674 | hw->nt_timer = 0; | |
675 | hw->timers &= ~NT_ACTIVATION_TIMER; | |
676 | test_and_set_bit(FLG_ACTIVE, &dch->Flags); | |
677 | _queue_data(&dch->dev.D, PH_ACTIVATE_IND, | |
678 | MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); | |
679 | handle_led(hw, LED_S0_ON); | |
680 | break; | |
681 | case (4): | |
682 | hw->nt_timer = 0; | |
683 | hw->timers &= ~NT_ACTIVATION_TIMER; | |
684 | break; | |
685 | default: | |
686 | break; | |
687 | } | |
688 | hfcsusb_ph_info(hw); | |
689 | } | |
690 | ||
691 | static void | |
692 | ph_state(struct dchannel *dch) | |
693 | { | |
694 | struct hfcsusb *hw = dch->hw; | |
695 | ||
696 | if (hw->protocol == ISDN_P_NT_S0) | |
697 | ph_state_nt(dch); | |
698 | else if (hw->protocol == ISDN_P_TE_S0) | |
699 | ph_state_te(dch); | |
700 | } | |
701 | ||
702 | /* | |
703 | * disable/enable BChannel for desired protocoll | |
704 | */ | |
705 | static int | |
706 | hfcsusb_setup_bch(struct bchannel *bch, int protocol) | |
707 | { | |
708 | struct hfcsusb *hw = bch->hw; | |
709 | __u8 conhdlc, sctrl, sctrl_r; | |
710 | ||
711 | if (debug & DEBUG_HW) | |
712 | printk(KERN_DEBUG "%s: %s: protocol %x-->%x B%d\n", | |
713 | hw->name, __func__, bch->state, protocol, | |
714 | bch->nr); | |
715 | ||
716 | /* setup val for CON_HDLC */ | |
717 | conhdlc = 0; | |
718 | if (protocol > ISDN_P_NONE) | |
719 | conhdlc = 8; /* enable FIFO */ | |
720 | ||
721 | switch (protocol) { | |
722 | case (-1): /* used for init */ | |
723 | bch->state = -1; | |
af901ca1 | 724 | /* fall through */ |
69f52adb KK |
725 | case (ISDN_P_NONE): |
726 | if (bch->state == ISDN_P_NONE) | |
727 | return 0; /* already in idle state */ | |
728 | bch->state = ISDN_P_NONE; | |
729 | clear_bit(FLG_HDLC, &bch->Flags); | |
730 | clear_bit(FLG_TRANSPARENT, &bch->Flags); | |
731 | break; | |
732 | case (ISDN_P_B_RAW): | |
733 | conhdlc |= 2; | |
734 | bch->state = protocol; | |
735 | set_bit(FLG_TRANSPARENT, &bch->Flags); | |
736 | break; | |
737 | case (ISDN_P_B_HDLC): | |
738 | bch->state = protocol; | |
739 | set_bit(FLG_HDLC, &bch->Flags); | |
740 | break; | |
741 | default: | |
742 | if (debug & DEBUG_HW) | |
743 | printk(KERN_DEBUG "%s: %s: prot not known %x\n", | |
744 | hw->name, __func__, protocol); | |
745 | return -ENOPROTOOPT; | |
746 | } | |
747 | ||
748 | if (protocol >= ISDN_P_NONE) { | |
749 | write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 0 : 2); | |
750 | write_reg(hw, HFCUSB_CON_HDLC, conhdlc); | |
751 | write_reg(hw, HFCUSB_INC_RES_F, 2); | |
752 | write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 1 : 3); | |
753 | write_reg(hw, HFCUSB_CON_HDLC, conhdlc); | |
754 | write_reg(hw, HFCUSB_INC_RES_F, 2); | |
755 | ||
756 | sctrl = 0x40 + ((hw->protocol == ISDN_P_TE_S0) ? 0x00 : 0x04); | |
757 | sctrl_r = 0x0; | |
758 | if (test_bit(FLG_ACTIVE, &hw->bch[0].Flags)) { | |
759 | sctrl |= 1; | |
760 | sctrl_r |= 1; | |
761 | } | |
762 | if (test_bit(FLG_ACTIVE, &hw->bch[1].Flags)) { | |
763 | sctrl |= 2; | |
764 | sctrl_r |= 2; | |
765 | } | |
766 | write_reg(hw, HFCUSB_SCTRL, sctrl); | |
767 | write_reg(hw, HFCUSB_SCTRL_R, sctrl_r); | |
768 | ||
769 | if (protocol > ISDN_P_NONE) | |
770 | handle_led(hw, (bch->nr == 1) ? LED_B1_ON : LED_B2_ON); | |
771 | else | |
772 | handle_led(hw, (bch->nr == 1) ? LED_B1_OFF : | |
773 | LED_B2_OFF); | |
774 | } | |
775 | hfcsusb_ph_info(hw); | |
776 | return 0; | |
777 | } | |
778 | ||
779 | static void | |
780 | hfcsusb_ph_command(struct hfcsusb *hw, u_char command) | |
781 | { | |
782 | if (debug & DEBUG_HW) | |
783 | printk(KERN_DEBUG "%s: %s: %x\n", | |
784 | hw->name, __func__, command); | |
785 | ||
786 | switch (command) { | |
787 | case HFC_L1_ACTIVATE_TE: | |
788 | /* force sending sending INFO1 */ | |
789 | write_reg(hw, HFCUSB_STATES, 0x14); | |
790 | /* start l1 activation */ | |
791 | write_reg(hw, HFCUSB_STATES, 0x04); | |
792 | break; | |
793 | ||
794 | case HFC_L1_FORCE_DEACTIVATE_TE: | |
795 | write_reg(hw, HFCUSB_STATES, 0x10); | |
796 | write_reg(hw, HFCUSB_STATES, 0x03); | |
797 | break; | |
798 | ||
799 | case HFC_L1_ACTIVATE_NT: | |
800 | if (hw->dch.state == 3) | |
801 | _queue_data(&hw->dch.dev.D, PH_ACTIVATE_IND, | |
802 | MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); | |
803 | else | |
804 | write_reg(hw, HFCUSB_STATES, HFCUSB_ACTIVATE | | |
805 | HFCUSB_DO_ACTION | HFCUSB_NT_G2_G3); | |
806 | break; | |
807 | ||
808 | case HFC_L1_DEACTIVATE_NT: | |
809 | write_reg(hw, HFCUSB_STATES, | |
810 | HFCUSB_DO_ACTION); | |
811 | break; | |
812 | } | |
813 | } | |
814 | ||
815 | /* | |
816 | * Layer 1 B-channel hardware access | |
817 | */ | |
818 | static int | |
819 | channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) | |
820 | { | |
821 | int ret = 0; | |
822 | ||
823 | switch (cq->op) { | |
824 | case MISDN_CTRL_GETOP: | |
825 | cq->op = MISDN_CTRL_FILL_EMPTY; | |
826 | break; | |
827 | case MISDN_CTRL_FILL_EMPTY: /* fill fifo, if empty */ | |
828 | test_and_set_bit(FLG_FILLEMPTY, &bch->Flags); | |
829 | if (debug & DEBUG_HW_OPEN) | |
830 | printk(KERN_DEBUG "%s: FILL_EMPTY request (nr=%d " | |
831 | "off=%d)\n", __func__, bch->nr, !!cq->p1); | |
832 | break; | |
833 | default: | |
834 | printk(KERN_WARNING "%s: unknown Op %x\n", __func__, cq->op); | |
835 | ret = -EINVAL; | |
836 | break; | |
837 | } | |
838 | return ret; | |
839 | } | |
840 | ||
841 | /* collect data from incoming interrupt or isochron USB data */ | |
842 | static void | |
843 | hfcsusb_rx_frame(struct usb_fifo *fifo, __u8 *data, unsigned int len, | |
844 | int finish) | |
845 | { | |
846 | struct hfcsusb *hw = fifo->hw; | |
847 | struct sk_buff *rx_skb = NULL; | |
848 | int maxlen = 0; | |
849 | int fifon = fifo->fifonum; | |
850 | int i; | |
851 | int hdlc = 0; | |
852 | ||
853 | if (debug & DBG_HFC_CALL_TRACE) | |
854 | printk(KERN_DEBUG "%s: %s: fifo(%i) len(%i) " | |
855 | "dch(%p) bch(%p) ech(%p)\n", | |
856 | hw->name, __func__, fifon, len, | |
857 | fifo->dch, fifo->bch, fifo->ech); | |
858 | ||
859 | if (!len) | |
860 | return; | |
861 | ||
862 | if ((!!fifo->dch + !!fifo->bch + !!fifo->ech) != 1) { | |
863 | printk(KERN_DEBUG "%s: %s: undefined channel\n", | |
864 | hw->name, __func__); | |
865 | return; | |
866 | } | |
867 | ||
868 | spin_lock(&hw->lock); | |
869 | if (fifo->dch) { | |
870 | rx_skb = fifo->dch->rx_skb; | |
871 | maxlen = fifo->dch->maxlen; | |
872 | hdlc = 1; | |
873 | } | |
874 | if (fifo->bch) { | |
875 | rx_skb = fifo->bch->rx_skb; | |
876 | maxlen = fifo->bch->maxlen; | |
877 | hdlc = test_bit(FLG_HDLC, &fifo->bch->Flags); | |
878 | } | |
879 | if (fifo->ech) { | |
880 | rx_skb = fifo->ech->rx_skb; | |
881 | maxlen = fifo->ech->maxlen; | |
882 | hdlc = 1; | |
883 | } | |
884 | ||
885 | if (!rx_skb) { | |
886 | rx_skb = mI_alloc_skb(maxlen, GFP_ATOMIC); | |
887 | if (rx_skb) { | |
888 | if (fifo->dch) | |
889 | fifo->dch->rx_skb = rx_skb; | |
890 | if (fifo->bch) | |
891 | fifo->bch->rx_skb = rx_skb; | |
892 | if (fifo->ech) | |
893 | fifo->ech->rx_skb = rx_skb; | |
894 | skb_trim(rx_skb, 0); | |
895 | } else { | |
896 | printk(KERN_DEBUG "%s: %s: No mem for rx_skb\n", | |
897 | hw->name, __func__); | |
898 | spin_unlock(&hw->lock); | |
899 | return; | |
900 | } | |
901 | } | |
902 | ||
903 | if (fifo->dch || fifo->ech) { | |
904 | /* D/E-Channel SKB range check */ | |
905 | if ((rx_skb->len + len) >= MAX_DFRAME_LEN_L1) { | |
906 | printk(KERN_DEBUG "%s: %s: sbk mem exceeded " | |
907 | "for fifo(%d) HFCUSB_D_RX\n", | |
908 | hw->name, __func__, fifon); | |
909 | skb_trim(rx_skb, 0); | |
910 | spin_unlock(&hw->lock); | |
911 | return; | |
912 | } | |
913 | } else if (fifo->bch) { | |
914 | /* B-Channel SKB range check */ | |
915 | if ((rx_skb->len + len) >= (MAX_BCH_SIZE + 3)) { | |
916 | printk(KERN_DEBUG "%s: %s: sbk mem exceeded " | |
917 | "for fifo(%d) HFCUSB_B_RX\n", | |
918 | hw->name, __func__, fifon); | |
919 | skb_trim(rx_skb, 0); | |
920 | spin_unlock(&hw->lock); | |
921 | return; | |
922 | } | |
923 | } | |
924 | ||
925 | memcpy(skb_put(rx_skb, len), data, len); | |
926 | ||
927 | if (hdlc) { | |
928 | /* we have a complete hdlc packet */ | |
929 | if (finish) { | |
930 | if ((rx_skb->len > 3) && | |
931 | (!(rx_skb->data[rx_skb->len - 1]))) { | |
932 | if (debug & DBG_HFC_FIFO_VERBOSE) { | |
933 | printk(KERN_DEBUG "%s: %s: fifon(%i)" | |
934 | " new RX len(%i): ", | |
935 | hw->name, __func__, fifon, | |
936 | rx_skb->len); | |
937 | i = 0; | |
938 | while (i < rx_skb->len) | |
939 | printk("%02x ", | |
940 | rx_skb->data[i++]); | |
941 | printk("\n"); | |
942 | } | |
943 | ||
944 | /* remove CRC & status */ | |
945 | skb_trim(rx_skb, rx_skb->len - 3); | |
946 | ||
947 | if (fifo->dch) | |
948 | recv_Dchannel(fifo->dch); | |
949 | if (fifo->bch) | |
7cfa153d | 950 | recv_Bchannel(fifo->bch, MISDN_ID_ANY); |
69f52adb KK |
951 | if (fifo->ech) |
952 | recv_Echannel(fifo->ech, | |
953 | &hw->dch); | |
954 | } else { | |
955 | if (debug & DBG_HFC_FIFO_VERBOSE) { | |
956 | printk(KERN_DEBUG | |
957 | "%s: CRC or minlen ERROR fifon(%i) " | |
958 | "RX len(%i): ", | |
959 | hw->name, fifon, rx_skb->len); | |
960 | i = 0; | |
961 | while (i < rx_skb->len) | |
962 | printk("%02x ", | |
963 | rx_skb->data[i++]); | |
964 | printk("\n"); | |
965 | } | |
966 | skb_trim(rx_skb, 0); | |
967 | } | |
968 | } | |
969 | } else { | |
970 | /* deliver transparent data to layer2 */ | |
971 | if (rx_skb->len >= poll) | |
7cfa153d | 972 | recv_Bchannel(fifo->bch, MISDN_ID_ANY); |
69f52adb KK |
973 | } |
974 | spin_unlock(&hw->lock); | |
975 | } | |
976 | ||
6c2959aa | 977 | static void |
69f52adb KK |
978 | fill_isoc_urb(struct urb *urb, struct usb_device *dev, unsigned int pipe, |
979 | void *buf, int num_packets, int packet_size, int interval, | |
980 | usb_complete_t complete, void *context) | |
981 | { | |
982 | int k; | |
983 | ||
984 | usb_fill_bulk_urb(urb, dev, pipe, buf, packet_size * num_packets, | |
985 | complete, context); | |
986 | ||
987 | urb->number_of_packets = num_packets; | |
988 | urb->transfer_flags = URB_ISO_ASAP; | |
989 | urb->actual_length = 0; | |
990 | urb->interval = interval; | |
991 | ||
992 | for (k = 0; k < num_packets; k++) { | |
993 | urb->iso_frame_desc[k].offset = packet_size * k; | |
994 | urb->iso_frame_desc[k].length = packet_size; | |
995 | urb->iso_frame_desc[k].actual_length = 0; | |
996 | } | |
997 | } | |
998 | ||
999 | /* receive completion routine for all ISO tx fifos */ | |
1000 | static void | |
1001 | rx_iso_complete(struct urb *urb) | |
1002 | { | |
1003 | struct iso_urb *context_iso_urb = (struct iso_urb *) urb->context; | |
1004 | struct usb_fifo *fifo = context_iso_urb->owner_fifo; | |
1005 | struct hfcsusb *hw = fifo->hw; | |
1006 | int k, len, errcode, offset, num_isoc_packets, fifon, maxlen, | |
1007 | status, iso_status, i; | |
1008 | __u8 *buf; | |
1009 | static __u8 eof[8]; | |
1010 | __u8 s0_state; | |
1011 | ||
1012 | fifon = fifo->fifonum; | |
1013 | status = urb->status; | |
1014 | ||
1015 | spin_lock(&hw->lock); | |
1016 | if (fifo->stop_gracefull) { | |
1017 | fifo->stop_gracefull = 0; | |
1018 | fifo->active = 0; | |
1019 | spin_unlock(&hw->lock); | |
1020 | return; | |
1021 | } | |
1022 | spin_unlock(&hw->lock); | |
1023 | ||
1024 | /* | |
1025 | * ISO transfer only partially completed, | |
1026 | * look at individual frame status for details | |
1027 | */ | |
1028 | if (status == -EXDEV) { | |
1029 | if (debug & DEBUG_HW) | |
1030 | printk(KERN_DEBUG "%s: %s: with -EXDEV " | |
1031 | "urb->status %d, fifonum %d\n", | |
1032 | hw->name, __func__, status, fifon); | |
1033 | ||
1034 | /* clear status, so go on with ISO transfers */ | |
1035 | status = 0; | |
1036 | } | |
1037 | ||
1038 | s0_state = 0; | |
1039 | if (fifo->active && !status) { | |
1040 | num_isoc_packets = iso_packets[fifon]; | |
1041 | maxlen = fifo->usb_packet_maxlen; | |
1042 | ||
1043 | for (k = 0; k < num_isoc_packets; ++k) { | |
1044 | len = urb->iso_frame_desc[k].actual_length; | |
1045 | offset = urb->iso_frame_desc[k].offset; | |
1046 | buf = context_iso_urb->buffer + offset; | |
1047 | iso_status = urb->iso_frame_desc[k].status; | |
1048 | ||
1049 | if (iso_status && (debug & DBG_HFC_FIFO_VERBOSE)) { | |
1050 | printk(KERN_DEBUG "%s: %s: " | |
1051 | "ISO packet %i, status: %i\n", | |
1052 | hw->name, __func__, k, iso_status); | |
1053 | } | |
1054 | ||
1055 | /* USB data log for every D ISO in */ | |
1056 | if ((fifon == HFCUSB_D_RX) && | |
1057 | (debug & DBG_HFC_USB_VERBOSE)) { | |
1058 | printk(KERN_DEBUG | |
1059 | "%s: %s: %d (%d/%d) len(%d) ", | |
1060 | hw->name, __func__, urb->start_frame, | |
1061 | k, num_isoc_packets-1, | |
1062 | len); | |
1063 | for (i = 0; i < len; i++) | |
1064 | printk("%x ", buf[i]); | |
1065 | printk("\n"); | |
1066 | } | |
1067 | ||
1068 | if (!iso_status) { | |
1069 | if (fifo->last_urblen != maxlen) { | |
1070 | /* | |
1071 | * save fifo fill-level threshold bits | |
1072 | * to use them later in TX ISO URB | |
1073 | * completions | |
1074 | */ | |
1075 | hw->threshold_mask = buf[1]; | |
1076 | ||
1077 | if (fifon == HFCUSB_D_RX) | |
1078 | s0_state = (buf[0] >> 4); | |
1079 | ||
1080 | eof[fifon] = buf[0] & 1; | |
1081 | if (len > 2) | |
1082 | hfcsusb_rx_frame(fifo, buf + 2, | |
1083 | len - 2, (len < maxlen) | |
1084 | ? eof[fifon] : 0); | |
1085 | } else | |
1086 | hfcsusb_rx_frame(fifo, buf, len, | |
1087 | (len < maxlen) ? | |
1088 | eof[fifon] : 0); | |
1089 | fifo->last_urblen = len; | |
1090 | } | |
1091 | } | |
1092 | ||
1093 | /* signal S0 layer1 state change */ | |
1094 | if ((s0_state) && (hw->initdone) && | |
1095 | (s0_state != hw->dch.state)) { | |
1096 | hw->dch.state = s0_state; | |
1097 | schedule_event(&hw->dch, FLG_PHCHANGE); | |
1098 | } | |
1099 | ||
1100 | fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe, | |
1101 | context_iso_urb->buffer, num_isoc_packets, | |
1102 | fifo->usb_packet_maxlen, fifo->intervall, | |
1103 | (usb_complete_t)rx_iso_complete, urb->context); | |
1104 | errcode = usb_submit_urb(urb, GFP_ATOMIC); | |
1105 | if (errcode < 0) { | |
1106 | if (debug & DEBUG_HW) | |
1107 | printk(KERN_DEBUG "%s: %s: error submitting " | |
1108 | "ISO URB: %d\n", | |
1109 | hw->name, __func__, errcode); | |
1110 | } | |
1111 | } else { | |
1112 | if (status && (debug & DBG_HFC_URB_INFO)) | |
1113 | printk(KERN_DEBUG "%s: %s: rx_iso_complete : " | |
1114 | "urb->status %d, fifonum %d\n", | |
1115 | hw->name, __func__, status, fifon); | |
1116 | } | |
1117 | } | |
1118 | ||
1119 | /* receive completion routine for all interrupt rx fifos */ | |
1120 | static void | |
1121 | rx_int_complete(struct urb *urb) | |
1122 | { | |
1123 | int len, status, i; | |
1124 | __u8 *buf, maxlen, fifon; | |
1125 | struct usb_fifo *fifo = (struct usb_fifo *) urb->context; | |
1126 | struct hfcsusb *hw = fifo->hw; | |
1127 | static __u8 eof[8]; | |
1128 | ||
1129 | spin_lock(&hw->lock); | |
1130 | if (fifo->stop_gracefull) { | |
1131 | fifo->stop_gracefull = 0; | |
1132 | fifo->active = 0; | |
1133 | spin_unlock(&hw->lock); | |
1134 | return; | |
1135 | } | |
1136 | spin_unlock(&hw->lock); | |
1137 | ||
1138 | fifon = fifo->fifonum; | |
1139 | if ((!fifo->active) || (urb->status)) { | |
1140 | if (debug & DBG_HFC_URB_ERROR) | |
1141 | printk(KERN_DEBUG | |
1142 | "%s: %s: RX-Fifo %i is going down (%i)\n", | |
1143 | hw->name, __func__, fifon, urb->status); | |
1144 | ||
1145 | fifo->urb->interval = 0; /* cancel automatic rescheduling */ | |
1146 | return; | |
1147 | } | |
1148 | len = urb->actual_length; | |
1149 | buf = fifo->buffer; | |
1150 | maxlen = fifo->usb_packet_maxlen; | |
1151 | ||
1152 | /* USB data log for every D INT in */ | |
1153 | if ((fifon == HFCUSB_D_RX) && (debug & DBG_HFC_USB_VERBOSE)) { | |
1154 | printk(KERN_DEBUG "%s: %s: D RX INT len(%d) ", | |
1155 | hw->name, __func__, len); | |
1156 | for (i = 0; i < len; i++) | |
1157 | printk("%02x ", buf[i]); | |
1158 | printk("\n"); | |
1159 | } | |
1160 | ||
1161 | if (fifo->last_urblen != fifo->usb_packet_maxlen) { | |
1162 | /* the threshold mask is in the 2nd status byte */ | |
1163 | hw->threshold_mask = buf[1]; | |
1164 | ||
1165 | /* signal S0 layer1 state change */ | |
1166 | if (hw->initdone && ((buf[0] >> 4) != hw->dch.state)) { | |
1167 | hw->dch.state = (buf[0] >> 4); | |
1168 | schedule_event(&hw->dch, FLG_PHCHANGE); | |
1169 | } | |
1170 | ||
1171 | eof[fifon] = buf[0] & 1; | |
1172 | /* if we have more than the 2 status bytes -> collect data */ | |
1173 | if (len > 2) | |
1174 | hfcsusb_rx_frame(fifo, buf + 2, | |
1175 | urb->actual_length - 2, | |
1176 | (len < maxlen) ? eof[fifon] : 0); | |
1177 | } else { | |
1178 | hfcsusb_rx_frame(fifo, buf, urb->actual_length, | |
1179 | (len < maxlen) ? eof[fifon] : 0); | |
1180 | } | |
1181 | fifo->last_urblen = urb->actual_length; | |
1182 | ||
1183 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
1184 | if (status) { | |
1185 | if (debug & DEBUG_HW) | |
1186 | printk(KERN_DEBUG "%s: %s: error resubmitting USB\n", | |
1187 | hw->name, __func__); | |
1188 | } | |
1189 | } | |
1190 | ||
1191 | /* transmit completion routine for all ISO tx fifos */ | |
1192 | static void | |
1193 | tx_iso_complete(struct urb *urb) | |
1194 | { | |
1195 | struct iso_urb *context_iso_urb = (struct iso_urb *) urb->context; | |
1196 | struct usb_fifo *fifo = context_iso_urb->owner_fifo; | |
1197 | struct hfcsusb *hw = fifo->hw; | |
1198 | struct sk_buff *tx_skb; | |
1199 | int k, tx_offset, num_isoc_packets, sink, remain, current_len, | |
1200 | errcode, hdlc, i; | |
1201 | int *tx_idx; | |
1202 | int frame_complete, fifon, status; | |
1203 | __u8 threshbit; | |
1204 | ||
1205 | spin_lock(&hw->lock); | |
1206 | if (fifo->stop_gracefull) { | |
1207 | fifo->stop_gracefull = 0; | |
1208 | fifo->active = 0; | |
1209 | spin_unlock(&hw->lock); | |
1210 | return; | |
1211 | } | |
1212 | ||
1213 | if (fifo->dch) { | |
1214 | tx_skb = fifo->dch->tx_skb; | |
1215 | tx_idx = &fifo->dch->tx_idx; | |
1216 | hdlc = 1; | |
1217 | } else if (fifo->bch) { | |
1218 | tx_skb = fifo->bch->tx_skb; | |
1219 | tx_idx = &fifo->bch->tx_idx; | |
1220 | hdlc = test_bit(FLG_HDLC, &fifo->bch->Flags); | |
1221 | } else { | |
1222 | printk(KERN_DEBUG "%s: %s: neither BCH nor DCH\n", | |
1223 | hw->name, __func__); | |
1224 | spin_unlock(&hw->lock); | |
1225 | return; | |
1226 | } | |
1227 | ||
1228 | fifon = fifo->fifonum; | |
1229 | status = urb->status; | |
1230 | ||
1231 | tx_offset = 0; | |
1232 | ||
1233 | /* | |
1234 | * ISO transfer only partially completed, | |
1235 | * look at individual frame status for details | |
1236 | */ | |
1237 | if (status == -EXDEV) { | |
1238 | if (debug & DBG_HFC_URB_ERROR) | |
1239 | printk(KERN_DEBUG "%s: %s: " | |
1240 | "-EXDEV (%i) fifon (%d)\n", | |
1241 | hw->name, __func__, status, fifon); | |
1242 | ||
1243 | /* clear status, so go on with ISO transfers */ | |
1244 | status = 0; | |
1245 | } | |
1246 | ||
1247 | if (fifo->active && !status) { | |
1248 | /* is FifoFull-threshold set for our channel? */ | |
1249 | threshbit = (hw->threshold_mask & (1 << fifon)); | |
1250 | num_isoc_packets = iso_packets[fifon]; | |
1251 | ||
1252 | /* predict dataflow to avoid fifo overflow */ | |
1253 | if (fifon >= HFCUSB_D_TX) | |
1254 | sink = (threshbit) ? SINK_DMIN : SINK_DMAX; | |
1255 | else | |
1256 | sink = (threshbit) ? SINK_MIN : SINK_MAX; | |
1257 | fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe, | |
1258 | context_iso_urb->buffer, num_isoc_packets, | |
1259 | fifo->usb_packet_maxlen, fifo->intervall, | |
1260 | (usb_complete_t)tx_iso_complete, urb->context); | |
1261 | memset(context_iso_urb->buffer, 0, | |
1262 | sizeof(context_iso_urb->buffer)); | |
1263 | frame_complete = 0; | |
1264 | ||
1265 | for (k = 0; k < num_isoc_packets; ++k) { | |
1266 | /* analyze tx success of previous ISO packets */ | |
1267 | if (debug & DBG_HFC_URB_ERROR) { | |
1268 | errcode = urb->iso_frame_desc[k].status; | |
1269 | if (errcode) { | |
1270 | printk(KERN_DEBUG "%s: %s: " | |
1271 | "ISO packet %i, status: %i\n", | |
1272 | hw->name, __func__, k, errcode); | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | /* Generate next ISO Packets */ | |
1277 | if (tx_skb) | |
1278 | remain = tx_skb->len - *tx_idx; | |
1279 | else | |
1280 | remain = 0; | |
1281 | ||
1282 | if (remain > 0) { | |
1283 | fifo->bit_line -= sink; | |
1284 | current_len = (0 - fifo->bit_line) / 8; | |
1285 | if (current_len > 14) | |
1286 | current_len = 14; | |
1287 | if (current_len < 0) | |
1288 | current_len = 0; | |
1289 | if (remain < current_len) | |
1290 | current_len = remain; | |
1291 | ||
1292 | /* how much bit do we put on the line? */ | |
1293 | fifo->bit_line += current_len * 8; | |
1294 | ||
1295 | context_iso_urb->buffer[tx_offset] = 0; | |
1296 | if (current_len == remain) { | |
1297 | if (hdlc) { | |
1298 | /* signal frame completion */ | |
1299 | context_iso_urb-> | |
1300 | buffer[tx_offset] = 1; | |
1301 | /* add 2 byte flags and 16bit | |
1302 | * CRC at end of ISDN frame */ | |
1303 | fifo->bit_line += 32; | |
1304 | } | |
1305 | frame_complete = 1; | |
1306 | } | |
1307 | ||
1308 | /* copy tx data to iso-urb buffer */ | |
1309 | memcpy(context_iso_urb->buffer + tx_offset + 1, | |
1310 | (tx_skb->data + *tx_idx), current_len); | |
1311 | *tx_idx += current_len; | |
1312 | ||
1313 | urb->iso_frame_desc[k].offset = tx_offset; | |
1314 | urb->iso_frame_desc[k].length = current_len + 1; | |
1315 | ||
1316 | /* USB data log for every D ISO out */ | |
1317 | if ((fifon == HFCUSB_D_RX) && | |
1318 | (debug & DBG_HFC_USB_VERBOSE)) { | |
1319 | printk(KERN_DEBUG | |
1320 | "%s: %s (%d/%d) offs(%d) len(%d) ", | |
1321 | hw->name, __func__, | |
1322 | k, num_isoc_packets-1, | |
1323 | urb->iso_frame_desc[k].offset, | |
1324 | urb->iso_frame_desc[k].length); | |
1325 | ||
1326 | for (i = urb->iso_frame_desc[k].offset; | |
1327 | i < (urb->iso_frame_desc[k].offset | |
1328 | + urb->iso_frame_desc[k].length); | |
1329 | i++) | |
1330 | printk("%x ", | |
1331 | context_iso_urb->buffer[i]); | |
1332 | ||
1333 | printk(" skb->len(%i) tx-idx(%d)\n", | |
1334 | tx_skb->len, *tx_idx); | |
1335 | } | |
1336 | ||
1337 | tx_offset += (current_len + 1); | |
1338 | } else { | |
1339 | urb->iso_frame_desc[k].offset = tx_offset++; | |
1340 | urb->iso_frame_desc[k].length = 1; | |
1341 | /* we lower data margin every msec */ | |
1342 | fifo->bit_line -= sink; | |
1343 | if (fifo->bit_line < BITLINE_INF) | |
1344 | fifo->bit_line = BITLINE_INF; | |
1345 | } | |
1346 | ||
1347 | if (frame_complete) { | |
1348 | frame_complete = 0; | |
1349 | ||
1350 | if (debug & DBG_HFC_FIFO_VERBOSE) { | |
1351 | printk(KERN_DEBUG "%s: %s: " | |
1352 | "fifon(%i) new TX len(%i): ", | |
1353 | hw->name, __func__, | |
1354 | fifon, tx_skb->len); | |
1355 | i = 0; | |
1356 | while (i < tx_skb->len) | |
1357 | printk("%02x ", | |
1358 | tx_skb->data[i++]); | |
1359 | printk("\n"); | |
1360 | } | |
1361 | ||
1362 | dev_kfree_skb(tx_skb); | |
1363 | tx_skb = NULL; | |
1364 | if (fifo->dch && get_next_dframe(fifo->dch)) | |
1365 | tx_skb = fifo->dch->tx_skb; | |
1366 | else if (fifo->bch && | |
1367 | get_next_bframe(fifo->bch)) { | |
1368 | if (test_bit(FLG_TRANSPARENT, | |
1369 | &fifo->bch->Flags)) | |
1370 | confirm_Bsend(fifo->bch); | |
1371 | tx_skb = fifo->bch->tx_skb; | |
1372 | } | |
1373 | } | |
1374 | } | |
1375 | errcode = usb_submit_urb(urb, GFP_ATOMIC); | |
1376 | if (errcode < 0) { | |
1377 | if (debug & DEBUG_HW) | |
1378 | printk(KERN_DEBUG | |
1379 | "%s: %s: error submitting ISO URB: %d \n", | |
1380 | hw->name, __func__, errcode); | |
1381 | } | |
1382 | ||
1383 | /* | |
1384 | * abuse DChannel tx iso completion to trigger NT mode state | |
1385 | * changes tx_iso_complete is assumed to be called every | |
1386 | * fifo->intervall (ms) | |
1387 | */ | |
1388 | if ((fifon == HFCUSB_D_TX) && (hw->protocol == ISDN_P_NT_S0) | |
1389 | && (hw->timers & NT_ACTIVATION_TIMER)) { | |
1390 | if ((--hw->nt_timer) < 0) | |
1391 | schedule_event(&hw->dch, FLG_PHCHANGE); | |
1392 | } | |
1393 | ||
1394 | } else { | |
1395 | if (status && (debug & DBG_HFC_URB_ERROR)) | |
1396 | printk(KERN_DEBUG "%s: %s: urb->status %s (%i)" | |
1397 | "fifonum=%d\n", | |
1398 | hw->name, __func__, | |
1399 | symbolic(urb_errlist, status), status, fifon); | |
1400 | } | |
1401 | spin_unlock(&hw->lock); | |
1402 | } | |
1403 | ||
1404 | /* | |
1405 | * allocs urbs and start isoc transfer with two pending urbs to avoid | |
1406 | * gaps in the transfer chain | |
1407 | */ | |
1408 | static int | |
1409 | start_isoc_chain(struct usb_fifo *fifo, int num_packets_per_urb, | |
1410 | usb_complete_t complete, int packet_size) | |
1411 | { | |
1412 | struct hfcsusb *hw = fifo->hw; | |
1413 | int i, k, errcode; | |
1414 | ||
1415 | if (debug) | |
1416 | printk(KERN_DEBUG "%s: %s: fifo %i\n", | |
1417 | hw->name, __func__, fifo->fifonum); | |
1418 | ||
1419 | /* allocate Memory for Iso out Urbs */ | |
1420 | for (i = 0; i < 2; i++) { | |
1421 | if (!(fifo->iso[i].urb)) { | |
1422 | fifo->iso[i].urb = | |
1423 | usb_alloc_urb(num_packets_per_urb, GFP_KERNEL); | |
1424 | if (!(fifo->iso[i].urb)) { | |
1425 | printk(KERN_DEBUG | |
1426 | "%s: %s: alloc urb for fifo %i failed", | |
1427 | hw->name, __func__, fifo->fifonum); | |
1428 | } | |
1429 | fifo->iso[i].owner_fifo = (struct usb_fifo *) fifo; | |
1430 | fifo->iso[i].indx = i; | |
1431 | ||
1432 | /* Init the first iso */ | |
1433 | if (ISO_BUFFER_SIZE >= | |
1434 | (fifo->usb_packet_maxlen * | |
1435 | num_packets_per_urb)) { | |
1436 | fill_isoc_urb(fifo->iso[i].urb, | |
1437 | fifo->hw->dev, fifo->pipe, | |
1438 | fifo->iso[i].buffer, | |
1439 | num_packets_per_urb, | |
1440 | fifo->usb_packet_maxlen, | |
1441 | fifo->intervall, complete, | |
1442 | &fifo->iso[i]); | |
1443 | memset(fifo->iso[i].buffer, 0, | |
1444 | sizeof(fifo->iso[i].buffer)); | |
1445 | ||
1446 | for (k = 0; k < num_packets_per_urb; k++) { | |
1447 | fifo->iso[i].urb-> | |
1448 | iso_frame_desc[k].offset = | |
1449 | k * packet_size; | |
1450 | fifo->iso[i].urb-> | |
1451 | iso_frame_desc[k].length = | |
1452 | packet_size; | |
1453 | } | |
1454 | } else { | |
1455 | printk(KERN_DEBUG | |
1456 | "%s: %s: ISO Buffer size to small!\n", | |
1457 | hw->name, __func__); | |
1458 | } | |
1459 | } | |
1460 | fifo->bit_line = BITLINE_INF; | |
1461 | ||
1462 | errcode = usb_submit_urb(fifo->iso[i].urb, GFP_KERNEL); | |
1463 | fifo->active = (errcode >= 0) ? 1 : 0; | |
1464 | fifo->stop_gracefull = 0; | |
1465 | if (errcode < 0) { | |
1466 | printk(KERN_DEBUG "%s: %s: %s URB nr:%d\n", | |
1467 | hw->name, __func__, | |
1468 | symbolic(urb_errlist, errcode), i); | |
1469 | } | |
1470 | } | |
1471 | return fifo->active; | |
1472 | } | |
1473 | ||
1474 | static void | |
1475 | stop_iso_gracefull(struct usb_fifo *fifo) | |
1476 | { | |
1477 | struct hfcsusb *hw = fifo->hw; | |
1478 | int i, timeout; | |
1479 | u_long flags; | |
1480 | ||
1481 | for (i = 0; i < 2; i++) { | |
1482 | spin_lock_irqsave(&hw->lock, flags); | |
1483 | if (debug) | |
1484 | printk(KERN_DEBUG "%s: %s for fifo %i.%i\n", | |
1485 | hw->name, __func__, fifo->fifonum, i); | |
1486 | fifo->stop_gracefull = 1; | |
1487 | spin_unlock_irqrestore(&hw->lock, flags); | |
1488 | } | |
1489 | ||
1490 | for (i = 0; i < 2; i++) { | |
1491 | timeout = 3; | |
1492 | while (fifo->stop_gracefull && timeout--) | |
1493 | schedule_timeout_interruptible((HZ/1000)*16); | |
1494 | if (debug && fifo->stop_gracefull) | |
1495 | printk(KERN_DEBUG "%s: ERROR %s for fifo %i.%i\n", | |
1496 | hw->name, __func__, fifo->fifonum, i); | |
1497 | } | |
1498 | } | |
1499 | ||
1500 | static void | |
1501 | stop_int_gracefull(struct usb_fifo *fifo) | |
1502 | { | |
1503 | struct hfcsusb *hw = fifo->hw; | |
1504 | int timeout; | |
1505 | u_long flags; | |
1506 | ||
1507 | spin_lock_irqsave(&hw->lock, flags); | |
1508 | if (debug) | |
1509 | printk(KERN_DEBUG "%s: %s for fifo %i\n", | |
1510 | hw->name, __func__, fifo->fifonum); | |
1511 | fifo->stop_gracefull = 1; | |
1512 | spin_unlock_irqrestore(&hw->lock, flags); | |
1513 | ||
1514 | timeout = 3; | |
1515 | while (fifo->stop_gracefull && timeout--) | |
1516 | schedule_timeout_interruptible((HZ/1000)*3); | |
1517 | if (debug && fifo->stop_gracefull) | |
1518 | printk(KERN_DEBUG "%s: ERROR %s for fifo %i\n", | |
1519 | hw->name, __func__, fifo->fifonum); | |
1520 | } | |
1521 | ||
1522 | /* start the interrupt transfer for the given fifo */ | |
1523 | static void | |
1524 | start_int_fifo(struct usb_fifo *fifo) | |
1525 | { | |
1526 | struct hfcsusb *hw = fifo->hw; | |
1527 | int errcode; | |
1528 | ||
1529 | if (debug) | |
1530 | printk(KERN_DEBUG "%s: %s: INT IN fifo:%d\n", | |
1531 | hw->name, __func__, fifo->fifonum); | |
1532 | ||
1533 | if (!fifo->urb) { | |
1534 | fifo->urb = usb_alloc_urb(0, GFP_KERNEL); | |
1535 | if (!fifo->urb) | |
1536 | return; | |
1537 | } | |
1538 | usb_fill_int_urb(fifo->urb, fifo->hw->dev, fifo->pipe, | |
1539 | fifo->buffer, fifo->usb_packet_maxlen, | |
1540 | (usb_complete_t)rx_int_complete, fifo, fifo->intervall); | |
1541 | fifo->active = 1; | |
1542 | fifo->stop_gracefull = 0; | |
1543 | errcode = usb_submit_urb(fifo->urb, GFP_KERNEL); | |
1544 | if (errcode) { | |
1545 | printk(KERN_DEBUG "%s: %s: submit URB: status:%i\n", | |
1546 | hw->name, __func__, errcode); | |
1547 | fifo->active = 0; | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | static void | |
1552 | setPortMode(struct hfcsusb *hw) | |
1553 | { | |
1554 | if (debug & DEBUG_HW) | |
1555 | printk(KERN_DEBUG "%s: %s %s\n", hw->name, __func__, | |
1556 | (hw->protocol == ISDN_P_TE_S0) ? "TE" : "NT"); | |
1557 | ||
1558 | if (hw->protocol == ISDN_P_TE_S0) { | |
1559 | write_reg(hw, HFCUSB_SCTRL, 0x40); | |
1560 | write_reg(hw, HFCUSB_SCTRL_E, 0x00); | |
1561 | write_reg(hw, HFCUSB_CLKDEL, CLKDEL_TE); | |
1562 | write_reg(hw, HFCUSB_STATES, 3 | 0x10); | |
1563 | write_reg(hw, HFCUSB_STATES, 3); | |
1564 | } else { | |
1565 | write_reg(hw, HFCUSB_SCTRL, 0x44); | |
1566 | write_reg(hw, HFCUSB_SCTRL_E, 0x09); | |
1567 | write_reg(hw, HFCUSB_CLKDEL, CLKDEL_NT); | |
1568 | write_reg(hw, HFCUSB_STATES, 1 | 0x10); | |
1569 | write_reg(hw, HFCUSB_STATES, 1); | |
1570 | } | |
1571 | } | |
1572 | ||
1573 | static void | |
1574 | reset_hfcsusb(struct hfcsusb *hw) | |
1575 | { | |
1576 | struct usb_fifo *fifo; | |
1577 | int i; | |
1578 | ||
1579 | if (debug & DEBUG_HW) | |
1580 | printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); | |
1581 | ||
1582 | /* do Chip reset */ | |
1583 | write_reg(hw, HFCUSB_CIRM, 8); | |
1584 | ||
1585 | /* aux = output, reset off */ | |
1586 | write_reg(hw, HFCUSB_CIRM, 0x10); | |
1587 | ||
1588 | /* set USB_SIZE to match the wMaxPacketSize for INT or BULK transfers */ | |
1589 | write_reg(hw, HFCUSB_USB_SIZE, (hw->packet_size / 8) | | |
1590 | ((hw->packet_size / 8) << 4)); | |
1591 | ||
1592 | /* set USB_SIZE_I to match the the wMaxPacketSize for ISO transfers */ | |
1593 | write_reg(hw, HFCUSB_USB_SIZE_I, hw->iso_packet_size); | |
1594 | ||
1595 | /* enable PCM/GCI master mode */ | |
1596 | write_reg(hw, HFCUSB_MST_MODE1, 0); /* set default values */ | |
1597 | write_reg(hw, HFCUSB_MST_MODE0, 1); /* enable master mode */ | |
1598 | ||
1599 | /* init the fifos */ | |
1600 | write_reg(hw, HFCUSB_F_THRES, | |
1601 | (HFCUSB_TX_THRESHOLD / 8) | ((HFCUSB_RX_THRESHOLD / 8) << 4)); | |
1602 | ||
1603 | fifo = hw->fifos; | |
1604 | for (i = 0; i < HFCUSB_NUM_FIFOS; i++) { | |
1605 | write_reg(hw, HFCUSB_FIFO, i); /* select the desired fifo */ | |
1606 | fifo[i].max_size = | |
1607 | (i <= HFCUSB_B2_RX) ? MAX_BCH_SIZE : MAX_DFRAME_LEN; | |
1608 | fifo[i].last_urblen = 0; | |
1609 | ||
1610 | /* set 2 bit for D- & E-channel */ | |
1611 | write_reg(hw, HFCUSB_HDLC_PAR, ((i <= HFCUSB_B2_RX) ? 0 : 2)); | |
1612 | ||
1613 | /* enable all fifos */ | |
1614 | if (i == HFCUSB_D_TX) | |
1615 | write_reg(hw, HFCUSB_CON_HDLC, | |
1616 | (hw->protocol == ISDN_P_NT_S0) ? 0x08 : 0x09); | |
1617 | else | |
1618 | write_reg(hw, HFCUSB_CON_HDLC, 0x08); | |
1619 | write_reg(hw, HFCUSB_INC_RES_F, 2); /* reset the fifo */ | |
1620 | } | |
1621 | ||
1622 | write_reg(hw, HFCUSB_SCTRL_R, 0); /* disable both B receivers */ | |
1623 | handle_led(hw, LED_POWER_ON); | |
1624 | } | |
1625 | ||
1626 | /* start USB data pipes dependand on device's endpoint configuration */ | |
1627 | static void | |
1628 | hfcsusb_start_endpoint(struct hfcsusb *hw, int channel) | |
1629 | { | |
1630 | /* quick check if endpoint already running */ | |
1631 | if ((channel == HFC_CHAN_D) && (hw->fifos[HFCUSB_D_RX].active)) | |
1632 | return; | |
1633 | if ((channel == HFC_CHAN_B1) && (hw->fifos[HFCUSB_B1_RX].active)) | |
1634 | return; | |
1635 | if ((channel == HFC_CHAN_B2) && (hw->fifos[HFCUSB_B2_RX].active)) | |
1636 | return; | |
1637 | if ((channel == HFC_CHAN_E) && (hw->fifos[HFCUSB_PCM_RX].active)) | |
1638 | return; | |
1639 | ||
1640 | /* start rx endpoints using USB INT IN method */ | |
1641 | if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO) | |
1642 | start_int_fifo(hw->fifos + channel*2 + 1); | |
1643 | ||
1644 | /* start rx endpoints using USB ISO IN method */ | |
1645 | if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO) { | |
1646 | switch (channel) { | |
1647 | case HFC_CHAN_D: | |
1648 | start_isoc_chain(hw->fifos + HFCUSB_D_RX, | |
1649 | ISOC_PACKETS_D, | |
1650 | (usb_complete_t)rx_iso_complete, | |
1651 | 16); | |
1652 | break; | |
1653 | case HFC_CHAN_E: | |
1654 | start_isoc_chain(hw->fifos + HFCUSB_PCM_RX, | |
1655 | ISOC_PACKETS_D, | |
1656 | (usb_complete_t)rx_iso_complete, | |
1657 | 16); | |
1658 | break; | |
1659 | case HFC_CHAN_B1: | |
1660 | start_isoc_chain(hw->fifos + HFCUSB_B1_RX, | |
1661 | ISOC_PACKETS_B, | |
1662 | (usb_complete_t)rx_iso_complete, | |
1663 | 16); | |
1664 | break; | |
1665 | case HFC_CHAN_B2: | |
1666 | start_isoc_chain(hw->fifos + HFCUSB_B2_RX, | |
1667 | ISOC_PACKETS_B, | |
1668 | (usb_complete_t)rx_iso_complete, | |
1669 | 16); | |
1670 | break; | |
1671 | } | |
1672 | } | |
1673 | ||
1674 | /* start tx endpoints using USB ISO OUT method */ | |
1675 | switch (channel) { | |
1676 | case HFC_CHAN_D: | |
1677 | start_isoc_chain(hw->fifos + HFCUSB_D_TX, | |
1678 | ISOC_PACKETS_B, | |
1679 | (usb_complete_t)tx_iso_complete, 1); | |
1680 | break; | |
1681 | case HFC_CHAN_B1: | |
1682 | start_isoc_chain(hw->fifos + HFCUSB_B1_TX, | |
1683 | ISOC_PACKETS_D, | |
1684 | (usb_complete_t)tx_iso_complete, 1); | |
1685 | break; | |
1686 | case HFC_CHAN_B2: | |
1687 | start_isoc_chain(hw->fifos + HFCUSB_B2_TX, | |
1688 | ISOC_PACKETS_B, | |
1689 | (usb_complete_t)tx_iso_complete, 1); | |
1690 | break; | |
1691 | } | |
1692 | } | |
1693 | ||
1694 | /* stop USB data pipes dependand on device's endpoint configuration */ | |
1695 | static void | |
1696 | hfcsusb_stop_endpoint(struct hfcsusb *hw, int channel) | |
1697 | { | |
1698 | /* quick check if endpoint currently running */ | |
1699 | if ((channel == HFC_CHAN_D) && (!hw->fifos[HFCUSB_D_RX].active)) | |
1700 | return; | |
1701 | if ((channel == HFC_CHAN_B1) && (!hw->fifos[HFCUSB_B1_RX].active)) | |
1702 | return; | |
1703 | if ((channel == HFC_CHAN_B2) && (!hw->fifos[HFCUSB_B2_RX].active)) | |
1704 | return; | |
1705 | if ((channel == HFC_CHAN_E) && (!hw->fifos[HFCUSB_PCM_RX].active)) | |
1706 | return; | |
1707 | ||
1708 | /* rx endpoints using USB INT IN method */ | |
1709 | if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO) | |
1710 | stop_int_gracefull(hw->fifos + channel*2 + 1); | |
1711 | ||
1712 | /* rx endpoints using USB ISO IN method */ | |
1713 | if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO) | |
1714 | stop_iso_gracefull(hw->fifos + channel*2 + 1); | |
1715 | ||
1716 | /* tx endpoints using USB ISO OUT method */ | |
1717 | if (channel != HFC_CHAN_E) | |
1718 | stop_iso_gracefull(hw->fifos + channel*2); | |
1719 | } | |
1720 | ||
1721 | ||
1722 | /* Hardware Initialization */ | |
6c2959aa | 1723 | static int |
69f52adb KK |
1724 | setup_hfcsusb(struct hfcsusb *hw) |
1725 | { | |
1726 | int err; | |
1727 | u_char b; | |
1728 | ||
1729 | if (debug & DBG_HFC_CALL_TRACE) | |
1730 | printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); | |
1731 | ||
1732 | /* check the chip id */ | |
1733 | if (read_reg_atomic(hw, HFCUSB_CHIP_ID, &b) != 1) { | |
1734 | printk(KERN_DEBUG "%s: %s: cannot read chip id\n", | |
1735 | hw->name, __func__); | |
1736 | return 1; | |
1737 | } | |
1738 | if (b != HFCUSB_CHIPID) { | |
1739 | printk(KERN_DEBUG "%s: %s: Invalid chip id 0x%02x\n", | |
1740 | hw->name, __func__, b); | |
1741 | return 1; | |
1742 | } | |
1743 | ||
1744 | /* first set the needed config, interface and alternate */ | |
1745 | err = usb_set_interface(hw->dev, hw->if_used, hw->alt_used); | |
1746 | ||
1747 | hw->led_state = 0; | |
1748 | ||
1749 | /* init the background machinery for control requests */ | |
1750 | hw->ctrl_read.bRequestType = 0xc0; | |
1751 | hw->ctrl_read.bRequest = 1; | |
1752 | hw->ctrl_read.wLength = cpu_to_le16(1); | |
1753 | hw->ctrl_write.bRequestType = 0x40; | |
1754 | hw->ctrl_write.bRequest = 0; | |
1755 | hw->ctrl_write.wLength = 0; | |
1756 | usb_fill_control_urb(hw->ctrl_urb, hw->dev, hw->ctrl_out_pipe, | |
1757 | (u_char *)&hw->ctrl_write, NULL, 0, | |
1758 | (usb_complete_t)ctrl_complete, hw); | |
1759 | ||
1760 | reset_hfcsusb(hw); | |
1761 | return 0; | |
1762 | } | |
1763 | ||
1764 | static void | |
1765 | release_hw(struct hfcsusb *hw) | |
1766 | { | |
1767 | if (debug & DBG_HFC_CALL_TRACE) | |
1768 | printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); | |
1769 | ||
1770 | /* | |
1771 | * stop all endpoints gracefully | |
1772 | * TODO: mISDN_core should generate CLOSE_CHANNEL | |
1773 | * signals after calling mISDN_unregister_device() | |
1774 | */ | |
1775 | hfcsusb_stop_endpoint(hw, HFC_CHAN_D); | |
1776 | hfcsusb_stop_endpoint(hw, HFC_CHAN_B1); | |
1777 | hfcsusb_stop_endpoint(hw, HFC_CHAN_B2); | |
1778 | if (hw->fifos[HFCUSB_PCM_RX].pipe) | |
1779 | hfcsusb_stop_endpoint(hw, HFC_CHAN_E); | |
1780 | if (hw->protocol == ISDN_P_TE_S0) | |
1781 | l1_event(hw->dch.l1, CLOSE_CHANNEL); | |
1782 | ||
1783 | mISDN_unregister_device(&hw->dch.dev); | |
1784 | mISDN_freebchannel(&hw->bch[1]); | |
1785 | mISDN_freebchannel(&hw->bch[0]); | |
1786 | mISDN_freedchannel(&hw->dch); | |
1787 | ||
1788 | if (hw->ctrl_urb) { | |
1789 | usb_kill_urb(hw->ctrl_urb); | |
1790 | usb_free_urb(hw->ctrl_urb); | |
1791 | hw->ctrl_urb = NULL; | |
1792 | } | |
1793 | ||
1794 | if (hw->intf) | |
1795 | usb_set_intfdata(hw->intf, NULL); | |
1796 | list_del(&hw->list); | |
1797 | kfree(hw); | |
1798 | hw = NULL; | |
1799 | } | |
1800 | ||
1801 | static void | |
1802 | deactivate_bchannel(struct bchannel *bch) | |
1803 | { | |
1804 | struct hfcsusb *hw = bch->hw; | |
1805 | u_long flags; | |
1806 | ||
1807 | if (bch->debug & DEBUG_HW) | |
1808 | printk(KERN_DEBUG "%s: %s: bch->nr(%i)\n", | |
1809 | hw->name, __func__, bch->nr); | |
1810 | ||
1811 | spin_lock_irqsave(&hw->lock, flags); | |
fb286f04 | 1812 | mISDN_clear_bchannel(bch); |
69f52adb KK |
1813 | spin_unlock_irqrestore(&hw->lock, flags); |
1814 | hfcsusb_setup_bch(bch, ISDN_P_NONE); | |
1815 | hfcsusb_stop_endpoint(hw, bch->nr); | |
1816 | } | |
1817 | ||
1818 | /* | |
1819 | * Layer 1 B-channel hardware access | |
1820 | */ | |
1821 | static int | |
1822 | hfc_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg) | |
1823 | { | |
1824 | struct bchannel *bch = container_of(ch, struct bchannel, ch); | |
1825 | int ret = -EINVAL; | |
1826 | ||
1827 | if (bch->debug & DEBUG_HW) | |
1828 | printk(KERN_DEBUG "%s: cmd:%x %p\n", __func__, cmd, arg); | |
1829 | ||
1830 | switch (cmd) { | |
1831 | case HW_TESTRX_RAW: | |
1832 | case HW_TESTRX_HDLC: | |
1833 | case HW_TESTRX_OFF: | |
1834 | ret = -EINVAL; | |
1835 | break; | |
1836 | ||
1837 | case CLOSE_CHANNEL: | |
1838 | test_and_clear_bit(FLG_OPEN, &bch->Flags); | |
1839 | if (test_bit(FLG_ACTIVE, &bch->Flags)) | |
1840 | deactivate_bchannel(bch); | |
1841 | ch->protocol = ISDN_P_NONE; | |
1842 | ch->peer = NULL; | |
1843 | module_put(THIS_MODULE); | |
1844 | ret = 0; | |
1845 | break; | |
1846 | case CONTROL_CHANNEL: | |
1847 | ret = channel_bctrl(bch, arg); | |
1848 | break; | |
1849 | default: | |
1850 | printk(KERN_WARNING "%s: unknown prim(%x)\n", | |
1851 | __func__, cmd); | |
1852 | } | |
1853 | return ret; | |
1854 | } | |
1855 | ||
1856 | static int | |
1857 | setup_instance(struct hfcsusb *hw, struct device *parent) | |
1858 | { | |
1859 | u_long flags; | |
1860 | int err, i; | |
1861 | ||
1862 | if (debug & DBG_HFC_CALL_TRACE) | |
1863 | printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); | |
1864 | ||
1865 | spin_lock_init(&hw->ctrl_lock); | |
1866 | spin_lock_init(&hw->lock); | |
1867 | ||
1868 | mISDN_initdchannel(&hw->dch, MAX_DFRAME_LEN_L1, ph_state); | |
1869 | hw->dch.debug = debug & 0xFFFF; | |
1870 | hw->dch.hw = hw; | |
1871 | hw->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0); | |
1872 | hw->dch.dev.D.send = hfcusb_l2l1D; | |
1873 | hw->dch.dev.D.ctrl = hfc_dctrl; | |
1874 | ||
1875 | /* enable E-Channel logging */ | |
1876 | if (hw->fifos[HFCUSB_PCM_RX].pipe) | |
1877 | mISDN_initdchannel(&hw->ech, MAX_DFRAME_LEN_L1, NULL); | |
1878 | ||
1879 | hw->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | | |
1880 | (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); | |
1881 | hw->dch.dev.nrbchan = 2; | |
1882 | for (i = 0; i < 2; i++) { | |
1883 | hw->bch[i].nr = i + 1; | |
1884 | set_channelmap(i + 1, hw->dch.dev.channelmap); | |
1885 | hw->bch[i].debug = debug; | |
1886 | mISDN_initbchannel(&hw->bch[i], MAX_DATA_MEM); | |
1887 | hw->bch[i].hw = hw; | |
1888 | hw->bch[i].ch.send = hfcusb_l2l1B; | |
1889 | hw->bch[i].ch.ctrl = hfc_bctrl; | |
1890 | hw->bch[i].ch.nr = i + 1; | |
1891 | list_add(&hw->bch[i].ch.list, &hw->dch.dev.bchannels); | |
1892 | } | |
1893 | ||
1894 | hw->fifos[HFCUSB_B1_TX].bch = &hw->bch[0]; | |
1895 | hw->fifos[HFCUSB_B1_RX].bch = &hw->bch[0]; | |
1896 | hw->fifos[HFCUSB_B2_TX].bch = &hw->bch[1]; | |
1897 | hw->fifos[HFCUSB_B2_RX].bch = &hw->bch[1]; | |
1898 | hw->fifos[HFCUSB_D_TX].dch = &hw->dch; | |
1899 | hw->fifos[HFCUSB_D_RX].dch = &hw->dch; | |
1900 | hw->fifos[HFCUSB_PCM_RX].ech = &hw->ech; | |
1901 | hw->fifos[HFCUSB_PCM_TX].ech = &hw->ech; | |
1902 | ||
1903 | err = setup_hfcsusb(hw); | |
1904 | if (err) | |
1905 | goto out; | |
1906 | ||
1907 | snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s.%d", DRIVER_NAME, | |
1908 | hfcsusb_cnt + 1); | |
1909 | printk(KERN_INFO "%s: registered as '%s'\n", | |
1910 | DRIVER_NAME, hw->name); | |
1911 | ||
1912 | err = mISDN_register_device(&hw->dch.dev, parent, hw->name); | |
1913 | if (err) | |
1914 | goto out; | |
1915 | ||
1916 | hfcsusb_cnt++; | |
1917 | write_lock_irqsave(&HFClock, flags); | |
1918 | list_add_tail(&hw->list, &HFClist); | |
1919 | write_unlock_irqrestore(&HFClock, flags); | |
1920 | return 0; | |
1921 | ||
1922 | out: | |
1923 | mISDN_freebchannel(&hw->bch[1]); | |
1924 | mISDN_freebchannel(&hw->bch[0]); | |
1925 | mISDN_freedchannel(&hw->dch); | |
1926 | kfree(hw); | |
1927 | return err; | |
1928 | } | |
1929 | ||
1930 | static int | |
1931 | hfcsusb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
1932 | { | |
1933 | struct hfcsusb *hw; | |
1934 | struct usb_device *dev = interface_to_usbdev(intf); | |
1935 | struct usb_host_interface *iface = intf->cur_altsetting; | |
1936 | struct usb_host_interface *iface_used = NULL; | |
1937 | struct usb_host_endpoint *ep; | |
1938 | struct hfcsusb_vdata *driver_info; | |
1939 | int ifnum = iface->desc.bInterfaceNumber, i, idx, alt_idx, | |
1940 | probe_alt_setting, vend_idx, cfg_used, *vcf, attr, cfg_found, | |
1941 | ep_addr, cmptbl[16], small_match, iso_packet_size, packet_size, | |
1942 | alt_used = 0; | |
1943 | ||
1944 | vend_idx = 0xffff; | |
1945 | for (i = 0; hfcsusb_idtab[i].idVendor; i++) { | |
1946 | if ((le16_to_cpu(dev->descriptor.idVendor) | |
1947 | == hfcsusb_idtab[i].idVendor) && | |
1948 | (le16_to_cpu(dev->descriptor.idProduct) | |
1949 | == hfcsusb_idtab[i].idProduct)) { | |
1950 | vend_idx = i; | |
1951 | continue; | |
1952 | } | |
1953 | } | |
1954 | ||
1955 | printk(KERN_DEBUG | |
1956 | "%s: interface(%d) actalt(%d) minor(%d) vend_idx(%d)\n", | |
1957 | __func__, ifnum, iface->desc.bAlternateSetting, | |
1958 | intf->minor, vend_idx); | |
1959 | ||
1960 | if (vend_idx == 0xffff) { | |
1961 | printk(KERN_WARNING | |
1962 | "%s: no valid vendor found in USB descriptor\n", | |
1963 | __func__); | |
1964 | return -EIO; | |
1965 | } | |
1966 | /* if vendor and product ID is OK, start probing alternate settings */ | |
1967 | alt_idx = 0; | |
1968 | small_match = -1; | |
1969 | ||
1970 | /* default settings */ | |
1971 | iso_packet_size = 16; | |
1972 | packet_size = 64; | |
1973 | ||
1974 | while (alt_idx < intf->num_altsetting) { | |
1975 | iface = intf->altsetting + alt_idx; | |
1976 | probe_alt_setting = iface->desc.bAlternateSetting; | |
1977 | cfg_used = 0; | |
1978 | ||
1979 | while (validconf[cfg_used][0]) { | |
1980 | cfg_found = 1; | |
1981 | vcf = validconf[cfg_used]; | |
1982 | ep = iface->endpoint; | |
1983 | memcpy(cmptbl, vcf, 16 * sizeof(int)); | |
1984 | ||
1985 | /* check for all endpoints in this alternate setting */ | |
1986 | for (i = 0; i < iface->desc.bNumEndpoints; i++) { | |
1987 | ep_addr = ep->desc.bEndpointAddress; | |
1988 | ||
1989 | /* get endpoint base */ | |
1990 | idx = ((ep_addr & 0x7f) - 1) * 2; | |
1991 | if (ep_addr & 0x80) | |
1992 | idx++; | |
1993 | attr = ep->desc.bmAttributes; | |
1994 | ||
1995 | if (cmptbl[idx] != EP_NOP) { | |
1996 | if (cmptbl[idx] == EP_NUL) | |
1997 | cfg_found = 0; | |
1998 | if (attr == USB_ENDPOINT_XFER_INT | |
1999 | && cmptbl[idx] == EP_INT) | |
2000 | cmptbl[idx] = EP_NUL; | |
2001 | if (attr == USB_ENDPOINT_XFER_BULK | |
2002 | && cmptbl[idx] == EP_BLK) | |
2003 | cmptbl[idx] = EP_NUL; | |
2004 | if (attr == USB_ENDPOINT_XFER_ISOC | |
2005 | && cmptbl[idx] == EP_ISO) | |
2006 | cmptbl[idx] = EP_NUL; | |
2007 | ||
2008 | if (attr == USB_ENDPOINT_XFER_INT && | |
2009 | ep->desc.bInterval < vcf[17]) { | |
2010 | cfg_found = 0; | |
2011 | } | |
2012 | } | |
2013 | ep++; | |
2014 | } | |
2015 | ||
2016 | for (i = 0; i < 16; i++) | |
2017 | if (cmptbl[i] != EP_NOP && cmptbl[i] != EP_NUL) | |
2018 | cfg_found = 0; | |
2019 | ||
2020 | if (cfg_found) { | |
2021 | if (small_match < cfg_used) { | |
2022 | small_match = cfg_used; | |
2023 | alt_used = probe_alt_setting; | |
2024 | iface_used = iface; | |
2025 | } | |
2026 | } | |
2027 | cfg_used++; | |
2028 | } | |
2029 | alt_idx++; | |
2030 | } /* (alt_idx < intf->num_altsetting) */ | |
2031 | ||
2032 | /* not found a valid USB Ta Endpoint config */ | |
2033 | if (small_match == -1) | |
2034 | return -EIO; | |
2035 | ||
2036 | iface = iface_used; | |
2037 | hw = kzalloc(sizeof(struct hfcsusb), GFP_KERNEL); | |
2038 | if (!hw) | |
2039 | return -ENOMEM; /* got no mem */ | |
2040 | snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s", DRIVER_NAME); | |
2041 | ||
2042 | ep = iface->endpoint; | |
2043 | vcf = validconf[small_match]; | |
2044 | ||
2045 | for (i = 0; i < iface->desc.bNumEndpoints; i++) { | |
2046 | struct usb_fifo *f; | |
2047 | ||
2048 | ep_addr = ep->desc.bEndpointAddress; | |
2049 | /* get endpoint base */ | |
2050 | idx = ((ep_addr & 0x7f) - 1) * 2; | |
2051 | if (ep_addr & 0x80) | |
2052 | idx++; | |
2053 | f = &hw->fifos[idx & 7]; | |
2054 | ||
2055 | /* init Endpoints */ | |
2056 | if (vcf[idx] == EP_NOP || vcf[idx] == EP_NUL) { | |
2057 | ep++; | |
2058 | continue; | |
2059 | } | |
2060 | switch (ep->desc.bmAttributes) { | |
2061 | case USB_ENDPOINT_XFER_INT: | |
2062 | f->pipe = usb_rcvintpipe(dev, | |
2063 | ep->desc.bEndpointAddress); | |
2064 | f->usb_transfer_mode = USB_INT; | |
2065 | packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
2066 | break; | |
2067 | case USB_ENDPOINT_XFER_BULK: | |
2068 | if (ep_addr & 0x80) | |
2069 | f->pipe = usb_rcvbulkpipe(dev, | |
2070 | ep->desc.bEndpointAddress); | |
2071 | else | |
2072 | f->pipe = usb_sndbulkpipe(dev, | |
2073 | ep->desc.bEndpointAddress); | |
2074 | f->usb_transfer_mode = USB_BULK; | |
2075 | packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
2076 | break; | |
2077 | case USB_ENDPOINT_XFER_ISOC: | |
2078 | if (ep_addr & 0x80) | |
2079 | f->pipe = usb_rcvisocpipe(dev, | |
2080 | ep->desc.bEndpointAddress); | |
2081 | else | |
2082 | f->pipe = usb_sndisocpipe(dev, | |
2083 | ep->desc.bEndpointAddress); | |
2084 | f->usb_transfer_mode = USB_ISOC; | |
2085 | iso_packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
2086 | break; | |
2087 | default: | |
2088 | f->pipe = 0; | |
2089 | } | |
2090 | ||
2091 | if (f->pipe) { | |
2092 | f->fifonum = idx & 7; | |
2093 | f->hw = hw; | |
2094 | f->usb_packet_maxlen = | |
2095 | le16_to_cpu(ep->desc.wMaxPacketSize); | |
2096 | f->intervall = ep->desc.bInterval; | |
2097 | } | |
2098 | ep++; | |
2099 | } | |
2100 | hw->dev = dev; /* save device */ | |
2101 | hw->if_used = ifnum; /* save used interface */ | |
2102 | hw->alt_used = alt_used; /* and alternate config */ | |
2103 | hw->ctrl_paksize = dev->descriptor.bMaxPacketSize0; /* control size */ | |
2104 | hw->cfg_used = vcf[16]; /* store used config */ | |
2105 | hw->vend_idx = vend_idx; /* store found vendor */ | |
2106 | hw->packet_size = packet_size; | |
2107 | hw->iso_packet_size = iso_packet_size; | |
2108 | ||
2109 | /* create the control pipes needed for register access */ | |
2110 | hw->ctrl_in_pipe = usb_rcvctrlpipe(hw->dev, 0); | |
2111 | hw->ctrl_out_pipe = usb_sndctrlpipe(hw->dev, 0); | |
2112 | hw->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2113 | ||
2114 | driver_info = | |
2115 | (struct hfcsusb_vdata *)hfcsusb_idtab[vend_idx].driver_info; | |
2116 | printk(KERN_DEBUG "%s: %s: detected \"%s\" (%s, if=%d alt=%d)\n", | |
2117 | hw->name, __func__, driver_info->vend_name, | |
2118 | conf_str[small_match], ifnum, alt_used); | |
2119 | ||
2120 | if (setup_instance(hw, dev->dev.parent)) | |
2121 | return -EIO; | |
2122 | ||
2123 | hw->intf = intf; | |
2124 | usb_set_intfdata(hw->intf, hw); | |
2125 | return 0; | |
2126 | } | |
2127 | ||
2128 | /* function called when an active device is removed */ | |
2129 | static void | |
2130 | hfcsusb_disconnect(struct usb_interface *intf) | |
2131 | { | |
2132 | struct hfcsusb *hw = usb_get_intfdata(intf); | |
2133 | struct hfcsusb *next; | |
2134 | int cnt = 0; | |
2135 | ||
2136 | printk(KERN_INFO "%s: device disconnected\n", hw->name); | |
2137 | ||
2138 | handle_led(hw, LED_POWER_OFF); | |
2139 | release_hw(hw); | |
2140 | ||
2141 | list_for_each_entry_safe(hw, next, &HFClist, list) | |
2142 | cnt++; | |
2143 | if (!cnt) | |
2144 | hfcsusb_cnt = 0; | |
2145 | ||
2146 | usb_set_intfdata(intf, NULL); | |
2147 | } | |
2148 | ||
2149 | static struct usb_driver hfcsusb_drv = { | |
2150 | .name = DRIVER_NAME, | |
2151 | .id_table = hfcsusb_idtab, | |
2152 | .probe = hfcsusb_probe, | |
2153 | .disconnect = hfcsusb_disconnect, | |
2154 | }; | |
2155 | ||
2156 | static int __init | |
2157 | hfcsusb_init(void) | |
2158 | { | |
2159 | printk(KERN_INFO DRIVER_NAME " driver Rev. %s debug(0x%x) poll(%i)\n", | |
2160 | hfcsusb_rev, debug, poll); | |
2161 | ||
2162 | if (usb_register(&hfcsusb_drv)) { | |
2163 | printk(KERN_INFO DRIVER_NAME | |
2164 | ": Unable to register hfcsusb module at usb stack\n"); | |
2165 | return -ENODEV; | |
2166 | } | |
2167 | ||
2168 | return 0; | |
2169 | } | |
2170 | ||
2171 | static void __exit | |
2172 | hfcsusb_cleanup(void) | |
2173 | { | |
2174 | if (debug & DBG_HFC_CALL_TRACE) | |
2175 | printk(KERN_INFO DRIVER_NAME ": %s\n", __func__); | |
2176 | ||
2177 | /* unregister Hardware */ | |
2178 | usb_deregister(&hfcsusb_drv); /* release our driver */ | |
2179 | } | |
2180 | ||
2181 | module_init(hfcsusb_init); | |
2182 | module_exit(hfcsusb_cleanup); |