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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 | * | |
670d6089 | 30 | * Revision: 0.3.3 (socket), 2008-11-05 |
69f52adb KK |
31 | */ |
32 | ||
33 | #include <linux/module.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/usb.h> | |
36 | #include <linux/mISDNhw.h> | |
5a0e3ad6 | 37 | #include <linux/slab.h> |
69f52adb KK |
38 | #include "hfcsusb.h" |
39 | ||
69f52adb KK |
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 = | |
475be4d8 | 78 | cpu_to_le16(hw->ctrl_buff[hw->ctrl_out_idx].hfcs_reg); |
69f52adb | 79 | hw->ctrl_write.wValue = |
475be4d8 | 80 | cpu_to_le16(hw->ctrl_buff[hw->ctrl_out_idx].reg_val); |
69f52adb KK |
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", | |
475be4d8 | 96 | hw->name, __func__, reg, val); |
69f52adb KK |
97 | |
98 | spin_lock(&hw->ctrl_lock); | |
e72e9f38 JL |
99 | if (hw->ctrl_cnt >= HFC_CTRL_BUFSIZE) { |
100 | spin_unlock(&hw->ctrl_lock); | |
69f52adb | 101 | return 1; |
e72e9f38 | 102 | } |
69f52adb KK |
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 | /* control completion routine handling background control cmds */ | |
116 | static void | |
117 | ctrl_complete(struct urb *urb) | |
118 | { | |
119 | struct hfcsusb *hw = (struct hfcsusb *) urb->context; | |
69f52adb KK |
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) { | |
69f52adb KK |
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", | |
475be4d8 JP |
199 | hw->name, __func__, |
200 | HFCUSB_P_DATA, hw->led_state); | |
69f52adb KK |
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", | |
475be4d8 | 228 | hw->name, __func__, ret); |
8bfddfbe | 229 | if (ret > 0) |
69f52adb | 230 | ret = 0; |
69f52adb KK |
231 | return ret; |
232 | case PH_ACTIVATE_REQ: | |
233 | if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) { | |
37952cfa | 234 | hfcsusb_start_endpoint(hw, bch->nr - 1); |
69f52adb KK |
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, | |
475be4d8 | 240 | 0, NULL, GFP_KERNEL); |
69f52adb KK |
241 | break; |
242 | case PH_DEACTIVATE_REQ: | |
243 | deactivate_bchannel(bch); | |
244 | _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, | |
475be4d8 | 245 | 0, NULL, GFP_KERNEL); |
69f52adb KK |
246 | ret = 0; |
247 | break; | |
248 | } | |
249 | if (!ret) | |
250 | dev_kfree_skb(skb); | |
251 | return ret; | |
252 | } | |
253 | ||
254 | /* | |
255 | * send full D/B channel status information | |
256 | * as MPH_INFORMATION_IND | |
257 | */ | |
258 | static void | |
259 | hfcsusb_ph_info(struct hfcsusb *hw) | |
260 | { | |
261 | struct ph_info *phi; | |
262 | struct dchannel *dch = &hw->dch; | |
263 | int i; | |
264 | ||
265 | phi = kzalloc(sizeof(struct ph_info) + | |
475be4d8 | 266 | dch->dev.nrbchan * sizeof(struct ph_info_ch), GFP_ATOMIC); |
69f52adb KK |
267 | phi->dch.ch.protocol = hw->protocol; |
268 | phi->dch.ch.Flags = dch->Flags; | |
269 | phi->dch.state = dch->state; | |
270 | phi->dch.num_bch = dch->dev.nrbchan; | |
271 | for (i = 0; i < dch->dev.nrbchan; i++) { | |
272 | phi->bch[i].protocol = hw->bch[i].ch.protocol; | |
273 | phi->bch[i].Flags = hw->bch[i].Flags; | |
274 | } | |
275 | _queue_data(&dch->dev.D, MPH_INFORMATION_IND, MISDN_ID_ANY, | |
475be4d8 JP |
276 | sizeof(struct ph_info_dch) + dch->dev.nrbchan * |
277 | sizeof(struct ph_info_ch), phi, GFP_ATOMIC); | |
84860c72 | 278 | kfree(phi); |
69f52adb KK |
279 | } |
280 | ||
281 | /* | |
282 | * Layer2 -> Layer 1 Dchannel data | |
283 | */ | |
284 | static int | |
285 | hfcusb_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb) | |
286 | { | |
287 | struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); | |
288 | struct dchannel *dch = container_of(dev, struct dchannel, dev); | |
289 | struct mISDNhead *hh = mISDN_HEAD_P(skb); | |
290 | struct hfcsusb *hw = dch->hw; | |
291 | int ret = -EINVAL; | |
292 | u_long flags; | |
293 | ||
294 | switch (hh->prim) { | |
295 | case PH_DATA_REQ: | |
296 | if (debug & DBG_HFC_CALL_TRACE) | |
297 | printk(KERN_DEBUG "%s: %s: PH_DATA_REQ\n", | |
475be4d8 | 298 | hw->name, __func__); |
69f52adb KK |
299 | |
300 | spin_lock_irqsave(&hw->lock, flags); | |
301 | ret = dchannel_senddata(dch, skb); | |
302 | spin_unlock_irqrestore(&hw->lock, flags); | |
303 | if (ret > 0) { | |
304 | ret = 0; | |
305 | queue_ch_frame(ch, PH_DATA_CNF, hh->id, NULL); | |
306 | } | |
307 | break; | |
308 | ||
309 | case PH_ACTIVATE_REQ: | |
310 | if (debug & DBG_HFC_CALL_TRACE) | |
311 | printk(KERN_DEBUG "%s: %s: PH_ACTIVATE_REQ %s\n", | |
475be4d8 JP |
312 | hw->name, __func__, |
313 | (hw->protocol == ISDN_P_NT_S0) ? "NT" : "TE"); | |
69f52adb KK |
314 | |
315 | if (hw->protocol == ISDN_P_NT_S0) { | |
316 | ret = 0; | |
317 | if (test_bit(FLG_ACTIVE, &dch->Flags)) { | |
318 | _queue_data(&dch->dev.D, | |
475be4d8 JP |
319 | PH_ACTIVATE_IND, MISDN_ID_ANY, 0, |
320 | NULL, GFP_ATOMIC); | |
69f52adb KK |
321 | } else { |
322 | hfcsusb_ph_command(hw, | |
475be4d8 | 323 | HFC_L1_ACTIVATE_NT); |
69f52adb | 324 | test_and_set_bit(FLG_L2_ACTIVATED, |
475be4d8 | 325 | &dch->Flags); |
69f52adb KK |
326 | } |
327 | } else { | |
328 | hfcsusb_ph_command(hw, HFC_L1_ACTIVATE_TE); | |
329 | ret = l1_event(dch->l1, hh->prim); | |
330 | } | |
331 | break; | |
332 | ||
333 | case PH_DEACTIVATE_REQ: | |
334 | if (debug & DBG_HFC_CALL_TRACE) | |
335 | printk(KERN_DEBUG "%s: %s: PH_DEACTIVATE_REQ\n", | |
475be4d8 | 336 | hw->name, __func__); |
69f52adb KK |
337 | test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); |
338 | ||
339 | if (hw->protocol == ISDN_P_NT_S0) { | |
340 | hfcsusb_ph_command(hw, HFC_L1_DEACTIVATE_NT); | |
341 | spin_lock_irqsave(&hw->lock, flags); | |
342 | skb_queue_purge(&dch->squeue); | |
343 | if (dch->tx_skb) { | |
344 | dev_kfree_skb(dch->tx_skb); | |
345 | dch->tx_skb = NULL; | |
346 | } | |
347 | dch->tx_idx = 0; | |
348 | if (dch->rx_skb) { | |
349 | dev_kfree_skb(dch->rx_skb); | |
350 | dch->rx_skb = NULL; | |
351 | } | |
352 | test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); | |
353 | spin_unlock_irqrestore(&hw->lock, flags); | |
354 | #ifdef FIXME | |
355 | if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags)) | |
356 | dchannel_sched_event(&hc->dch, D_CLEARBUSY); | |
357 | #endif | |
358 | ret = 0; | |
359 | } else | |
360 | ret = l1_event(dch->l1, hh->prim); | |
361 | break; | |
362 | case MPH_INFORMATION_REQ: | |
363 | hfcsusb_ph_info(hw); | |
364 | ret = 0; | |
365 | break; | |
366 | } | |
367 | ||
368 | return ret; | |
369 | } | |
370 | ||
371 | /* | |
372 | * Layer 1 callback function | |
373 | */ | |
374 | static int | |
375 | hfc_l1callback(struct dchannel *dch, u_int cmd) | |
376 | { | |
377 | struct hfcsusb *hw = dch->hw; | |
378 | ||
379 | if (debug & DBG_HFC_CALL_TRACE) | |
380 | printk(KERN_DEBUG "%s: %s cmd 0x%x\n", | |
475be4d8 | 381 | hw->name, __func__, cmd); |
69f52adb KK |
382 | |
383 | switch (cmd) { | |
384 | case INFO3_P8: | |
385 | case INFO3_P10: | |
386 | case HW_RESET_REQ: | |
387 | case HW_POWERUP_REQ: | |
388 | break; | |
389 | ||
390 | case HW_DEACT_REQ: | |
391 | skb_queue_purge(&dch->squeue); | |
392 | if (dch->tx_skb) { | |
393 | dev_kfree_skb(dch->tx_skb); | |
394 | dch->tx_skb = NULL; | |
395 | } | |
396 | dch->tx_idx = 0; | |
397 | if (dch->rx_skb) { | |
398 | dev_kfree_skb(dch->rx_skb); | |
399 | dch->rx_skb = NULL; | |
400 | } | |
401 | test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); | |
402 | break; | |
403 | case PH_ACTIVATE_IND: | |
404 | test_and_set_bit(FLG_ACTIVE, &dch->Flags); | |
405 | _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, | |
475be4d8 | 406 | GFP_ATOMIC); |
69f52adb KK |
407 | break; |
408 | case PH_DEACTIVATE_IND: | |
409 | test_and_clear_bit(FLG_ACTIVE, &dch->Flags); | |
410 | _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, | |
475be4d8 | 411 | GFP_ATOMIC); |
69f52adb KK |
412 | break; |
413 | default: | |
414 | if (dch->debug & DEBUG_HW) | |
415 | printk(KERN_DEBUG "%s: %s: unknown cmd %x\n", | |
475be4d8 | 416 | hw->name, __func__, cmd); |
69f52adb KK |
417 | return -1; |
418 | } | |
419 | hfcsusb_ph_info(hw); | |
420 | return 0; | |
421 | } | |
422 | ||
423 | static int | |
424 | open_dchannel(struct hfcsusb *hw, struct mISDNchannel *ch, | |
475be4d8 | 425 | struct channel_req *rq) |
69f52adb KK |
426 | { |
427 | int err = 0; | |
428 | ||
429 | if (debug & DEBUG_HW_OPEN) | |
430 | printk(KERN_DEBUG "%s: %s: dev(%d) open addr(%i) from %p\n", | |
475be4d8 JP |
431 | hw->name, __func__, hw->dch.dev.id, rq->adr.channel, |
432 | __builtin_return_address(0)); | |
69f52adb KK |
433 | if (rq->protocol == ISDN_P_NONE) |
434 | return -EINVAL; | |
435 | ||
436 | test_and_clear_bit(FLG_ACTIVE, &hw->dch.Flags); | |
437 | test_and_clear_bit(FLG_ACTIVE, &hw->ech.Flags); | |
438 | hfcsusb_start_endpoint(hw, HFC_CHAN_D); | |
439 | ||
440 | /* E-Channel logging */ | |
441 | if (rq->adr.channel == 1) { | |
442 | if (hw->fifos[HFCUSB_PCM_RX].pipe) { | |
443 | hfcsusb_start_endpoint(hw, HFC_CHAN_E); | |
444 | set_bit(FLG_ACTIVE, &hw->ech.Flags); | |
445 | _queue_data(&hw->ech.dev.D, PH_ACTIVATE_IND, | |
475be4d8 | 446 | MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); |
69f52adb KK |
447 | } else |
448 | return -EINVAL; | |
449 | } | |
450 | ||
451 | if (!hw->initdone) { | |
452 | hw->protocol = rq->protocol; | |
453 | if (rq->protocol == ISDN_P_TE_S0) { | |
454 | err = create_l1(&hw->dch, hfc_l1callback); | |
455 | if (err) | |
456 | return err; | |
457 | } | |
458 | setPortMode(hw); | |
459 | ch->protocol = rq->protocol; | |
460 | hw->initdone = 1; | |
461 | } else { | |
462 | if (rq->protocol != ch->protocol) | |
463 | return -EPROTONOSUPPORT; | |
464 | } | |
465 | ||
466 | if (((ch->protocol == ISDN_P_NT_S0) && (hw->dch.state == 3)) || | |
467 | ((ch->protocol == ISDN_P_TE_S0) && (hw->dch.state == 7))) | |
468 | _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, | |
475be4d8 | 469 | 0, NULL, GFP_KERNEL); |
69f52adb KK |
470 | rq->ch = ch; |
471 | if (!try_module_get(THIS_MODULE)) | |
472 | printk(KERN_WARNING "%s: %s: cannot get module\n", | |
475be4d8 | 473 | hw->name, __func__); |
69f52adb KK |
474 | return 0; |
475 | } | |
476 | ||
477 | static int | |
478 | open_bchannel(struct hfcsusb *hw, struct channel_req *rq) | |
479 | { | |
480 | struct bchannel *bch; | |
481 | ||
819a1008 | 482 | if (rq->adr.channel == 0 || rq->adr.channel > 2) |
69f52adb KK |
483 | return -EINVAL; |
484 | if (rq->protocol == ISDN_P_NONE) | |
485 | return -EINVAL; | |
486 | ||
487 | if (debug & DBG_HFC_CALL_TRACE) | |
488 | printk(KERN_DEBUG "%s: %s B%i\n", | |
475be4d8 | 489 | hw->name, __func__, rq->adr.channel); |
69f52adb KK |
490 | |
491 | bch = &hw->bch[rq->adr.channel - 1]; | |
492 | if (test_and_set_bit(FLG_OPEN, &bch->Flags)) | |
493 | return -EBUSY; /* b-channel can be only open once */ | |
69f52adb KK |
494 | bch->ch.protocol = rq->protocol; |
495 | rq->ch = &bch->ch; | |
496 | ||
69f52adb KK |
497 | if (!try_module_get(THIS_MODULE)) |
498 | printk(KERN_WARNING "%s: %s:cannot get module\n", | |
475be4d8 | 499 | hw->name, __func__); |
69f52adb KK |
500 | return 0; |
501 | } | |
502 | ||
503 | static int | |
504 | channel_ctrl(struct hfcsusb *hw, struct mISDN_ctrl_req *cq) | |
505 | { | |
506 | int ret = 0; | |
507 | ||
508 | if (debug & DBG_HFC_CALL_TRACE) | |
509 | printk(KERN_DEBUG "%s: %s op(0x%x) channel(0x%x)\n", | |
475be4d8 | 510 | hw->name, __func__, (cq->op), (cq->channel)); |
69f52adb KK |
511 | |
512 | switch (cq->op) { | |
513 | case MISDN_CTRL_GETOP: | |
514 | cq->op = MISDN_CTRL_LOOP | MISDN_CTRL_CONNECT | | |
475be4d8 | 515 | MISDN_CTRL_DISCONNECT; |
69f52adb KK |
516 | break; |
517 | default: | |
518 | printk(KERN_WARNING "%s: %s: unknown Op %x\n", | |
475be4d8 | 519 | hw->name, __func__, cq->op); |
69f52adb KK |
520 | ret = -EINVAL; |
521 | break; | |
522 | } | |
523 | return ret; | |
524 | } | |
525 | ||
526 | /* | |
527 | * device control function | |
528 | */ | |
529 | static int | |
530 | hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg) | |
531 | { | |
532 | struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); | |
533 | struct dchannel *dch = container_of(dev, struct dchannel, dev); | |
534 | struct hfcsusb *hw = dch->hw; | |
535 | struct channel_req *rq; | |
536 | int err = 0; | |
537 | ||
538 | if (dch->debug & DEBUG_HW) | |
539 | printk(KERN_DEBUG "%s: %s: cmd:%x %p\n", | |
475be4d8 | 540 | hw->name, __func__, cmd, arg); |
69f52adb KK |
541 | switch (cmd) { |
542 | case OPEN_CHANNEL: | |
543 | rq = arg; | |
544 | if ((rq->protocol == ISDN_P_TE_S0) || | |
545 | (rq->protocol == ISDN_P_NT_S0)) | |
546 | err = open_dchannel(hw, ch, rq); | |
547 | else | |
548 | err = open_bchannel(hw, rq); | |
549 | if (!err) | |
550 | hw->open++; | |
551 | break; | |
552 | case CLOSE_CHANNEL: | |
553 | hw->open--; | |
554 | if (debug & DEBUG_HW_OPEN) | |
555 | printk(KERN_DEBUG | |
475be4d8 JP |
556 | "%s: %s: dev(%d) close from %p (open %d)\n", |
557 | hw->name, __func__, hw->dch.dev.id, | |
558 | __builtin_return_address(0), hw->open); | |
69f52adb KK |
559 | if (!hw->open) { |
560 | hfcsusb_stop_endpoint(hw, HFC_CHAN_D); | |
561 | if (hw->fifos[HFCUSB_PCM_RX].pipe) | |
562 | hfcsusb_stop_endpoint(hw, HFC_CHAN_E); | |
563 | handle_led(hw, LED_POWER_ON); | |
564 | } | |
565 | module_put(THIS_MODULE); | |
566 | break; | |
567 | case CONTROL_CHANNEL: | |
568 | err = channel_ctrl(hw, arg); | |
569 | break; | |
570 | default: | |
571 | if (dch->debug & DEBUG_HW) | |
572 | printk(KERN_DEBUG "%s: %s: unknown command %x\n", | |
475be4d8 | 573 | hw->name, __func__, cmd); |
69f52adb KK |
574 | return -EINVAL; |
575 | } | |
576 | return err; | |
577 | } | |
578 | ||
579 | /* | |
580 | * S0 TE state change event handler | |
581 | */ | |
582 | static void | |
583 | ph_state_te(struct dchannel *dch) | |
584 | { | |
585 | struct hfcsusb *hw = dch->hw; | |
586 | ||
587 | if (debug & DEBUG_HW) { | |
588 | if (dch->state <= HFC_MAX_TE_LAYER1_STATE) | |
589 | printk(KERN_DEBUG "%s: %s: %s\n", hw->name, __func__, | |
475be4d8 | 590 | HFC_TE_LAYER1_STATES[dch->state]); |
69f52adb KK |
591 | else |
592 | printk(KERN_DEBUG "%s: %s: TE F%d\n", | |
475be4d8 | 593 | hw->name, __func__, dch->state); |
69f52adb KK |
594 | } |
595 | ||
596 | switch (dch->state) { | |
597 | case 0: | |
598 | l1_event(dch->l1, HW_RESET_IND); | |
599 | break; | |
600 | case 3: | |
601 | l1_event(dch->l1, HW_DEACT_IND); | |
602 | break; | |
603 | case 5: | |
604 | case 8: | |
605 | l1_event(dch->l1, ANYSIGNAL); | |
606 | break; | |
607 | case 6: | |
608 | l1_event(dch->l1, INFO2); | |
609 | break; | |
610 | case 7: | |
611 | l1_event(dch->l1, INFO4_P8); | |
612 | break; | |
613 | } | |
614 | if (dch->state == 7) | |
615 | handle_led(hw, LED_S0_ON); | |
616 | else | |
617 | handle_led(hw, LED_S0_OFF); | |
618 | } | |
619 | ||
620 | /* | |
621 | * S0 NT state change event handler | |
622 | */ | |
623 | static void | |
624 | ph_state_nt(struct dchannel *dch) | |
625 | { | |
626 | struct hfcsusb *hw = dch->hw; | |
627 | ||
628 | if (debug & DEBUG_HW) { | |
629 | if (dch->state <= HFC_MAX_NT_LAYER1_STATE) | |
630 | printk(KERN_DEBUG "%s: %s: %s\n", | |
475be4d8 JP |
631 | hw->name, __func__, |
632 | HFC_NT_LAYER1_STATES[dch->state]); | |
69f52adb KK |
633 | |
634 | else | |
635 | printk(KERN_INFO DRIVER_NAME "%s: %s: NT G%d\n", | |
475be4d8 | 636 | hw->name, __func__, dch->state); |
69f52adb KK |
637 | } |
638 | ||
639 | switch (dch->state) { | |
640 | case (1): | |
641 | test_and_clear_bit(FLG_ACTIVE, &dch->Flags); | |
642 | test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); | |
643 | hw->nt_timer = 0; | |
644 | hw->timers &= ~NT_ACTIVATION_TIMER; | |
645 | handle_led(hw, LED_S0_OFF); | |
646 | break; | |
647 | ||
648 | case (2): | |
649 | if (hw->nt_timer < 0) { | |
650 | hw->nt_timer = 0; | |
651 | hw->timers &= ~NT_ACTIVATION_TIMER; | |
652 | hfcsusb_ph_command(dch->hw, HFC_L1_DEACTIVATE_NT); | |
653 | } else { | |
654 | hw->timers |= NT_ACTIVATION_TIMER; | |
655 | hw->nt_timer = NT_T1_COUNT; | |
656 | /* allow G2 -> G3 transition */ | |
657 | write_reg(hw, HFCUSB_STATES, 2 | HFCUSB_NT_G2_G3); | |
658 | } | |
659 | break; | |
660 | case (3): | |
661 | hw->nt_timer = 0; | |
662 | hw->timers &= ~NT_ACTIVATION_TIMER; | |
663 | test_and_set_bit(FLG_ACTIVE, &dch->Flags); | |
664 | _queue_data(&dch->dev.D, PH_ACTIVATE_IND, | |
475be4d8 | 665 | MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); |
69f52adb KK |
666 | handle_led(hw, LED_S0_ON); |
667 | break; | |
668 | case (4): | |
669 | hw->nt_timer = 0; | |
670 | hw->timers &= ~NT_ACTIVATION_TIMER; | |
671 | break; | |
672 | default: | |
673 | break; | |
674 | } | |
675 | hfcsusb_ph_info(hw); | |
676 | } | |
677 | ||
678 | static void | |
679 | ph_state(struct dchannel *dch) | |
680 | { | |
681 | struct hfcsusb *hw = dch->hw; | |
682 | ||
683 | if (hw->protocol == ISDN_P_NT_S0) | |
684 | ph_state_nt(dch); | |
685 | else if (hw->protocol == ISDN_P_TE_S0) | |
686 | ph_state_te(dch); | |
687 | } | |
688 | ||
689 | /* | |
690 | * disable/enable BChannel for desired protocoll | |
691 | */ | |
692 | static int | |
693 | hfcsusb_setup_bch(struct bchannel *bch, int protocol) | |
694 | { | |
695 | struct hfcsusb *hw = bch->hw; | |
696 | __u8 conhdlc, sctrl, sctrl_r; | |
697 | ||
698 | if (debug & DEBUG_HW) | |
699 | printk(KERN_DEBUG "%s: %s: protocol %x-->%x B%d\n", | |
475be4d8 JP |
700 | hw->name, __func__, bch->state, protocol, |
701 | bch->nr); | |
69f52adb KK |
702 | |
703 | /* setup val for CON_HDLC */ | |
704 | conhdlc = 0; | |
705 | if (protocol > ISDN_P_NONE) | |
706 | conhdlc = 8; /* enable FIFO */ | |
707 | ||
708 | switch (protocol) { | |
709 | case (-1): /* used for init */ | |
710 | bch->state = -1; | |
af901ca1 | 711 | /* fall through */ |
69f52adb KK |
712 | case (ISDN_P_NONE): |
713 | if (bch->state == ISDN_P_NONE) | |
714 | return 0; /* already in idle state */ | |
715 | bch->state = ISDN_P_NONE; | |
716 | clear_bit(FLG_HDLC, &bch->Flags); | |
717 | clear_bit(FLG_TRANSPARENT, &bch->Flags); | |
718 | break; | |
719 | case (ISDN_P_B_RAW): | |
720 | conhdlc |= 2; | |
721 | bch->state = protocol; | |
722 | set_bit(FLG_TRANSPARENT, &bch->Flags); | |
723 | break; | |
724 | case (ISDN_P_B_HDLC): | |
725 | bch->state = protocol; | |
726 | set_bit(FLG_HDLC, &bch->Flags); | |
727 | break; | |
728 | default: | |
729 | if (debug & DEBUG_HW) | |
730 | printk(KERN_DEBUG "%s: %s: prot not known %x\n", | |
475be4d8 | 731 | hw->name, __func__, protocol); |
69f52adb KK |
732 | return -ENOPROTOOPT; |
733 | } | |
734 | ||
735 | if (protocol >= ISDN_P_NONE) { | |
736 | write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 0 : 2); | |
737 | write_reg(hw, HFCUSB_CON_HDLC, conhdlc); | |
738 | write_reg(hw, HFCUSB_INC_RES_F, 2); | |
739 | write_reg(hw, HFCUSB_FIFO, (bch->nr == 1) ? 1 : 3); | |
740 | write_reg(hw, HFCUSB_CON_HDLC, conhdlc); | |
741 | write_reg(hw, HFCUSB_INC_RES_F, 2); | |
742 | ||
743 | sctrl = 0x40 + ((hw->protocol == ISDN_P_TE_S0) ? 0x00 : 0x04); | |
744 | sctrl_r = 0x0; | |
745 | if (test_bit(FLG_ACTIVE, &hw->bch[0].Flags)) { | |
746 | sctrl |= 1; | |
747 | sctrl_r |= 1; | |
748 | } | |
749 | if (test_bit(FLG_ACTIVE, &hw->bch[1].Flags)) { | |
750 | sctrl |= 2; | |
751 | sctrl_r |= 2; | |
752 | } | |
753 | write_reg(hw, HFCUSB_SCTRL, sctrl); | |
754 | write_reg(hw, HFCUSB_SCTRL_R, sctrl_r); | |
755 | ||
756 | if (protocol > ISDN_P_NONE) | |
757 | handle_led(hw, (bch->nr == 1) ? LED_B1_ON : LED_B2_ON); | |
758 | else | |
759 | handle_led(hw, (bch->nr == 1) ? LED_B1_OFF : | |
475be4d8 | 760 | LED_B2_OFF); |
69f52adb KK |
761 | } |
762 | hfcsusb_ph_info(hw); | |
763 | return 0; | |
764 | } | |
765 | ||
766 | static void | |
767 | hfcsusb_ph_command(struct hfcsusb *hw, u_char command) | |
768 | { | |
769 | if (debug & DEBUG_HW) | |
770 | printk(KERN_DEBUG "%s: %s: %x\n", | |
475be4d8 | 771 | hw->name, __func__, command); |
69f52adb KK |
772 | |
773 | switch (command) { | |
774 | case HFC_L1_ACTIVATE_TE: | |
775 | /* force sending sending INFO1 */ | |
776 | write_reg(hw, HFCUSB_STATES, 0x14); | |
777 | /* start l1 activation */ | |
778 | write_reg(hw, HFCUSB_STATES, 0x04); | |
779 | break; | |
780 | ||
781 | case HFC_L1_FORCE_DEACTIVATE_TE: | |
782 | write_reg(hw, HFCUSB_STATES, 0x10); | |
783 | write_reg(hw, HFCUSB_STATES, 0x03); | |
784 | break; | |
785 | ||
786 | case HFC_L1_ACTIVATE_NT: | |
787 | if (hw->dch.state == 3) | |
788 | _queue_data(&hw->dch.dev.D, PH_ACTIVATE_IND, | |
475be4d8 | 789 | MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); |
69f52adb KK |
790 | else |
791 | write_reg(hw, HFCUSB_STATES, HFCUSB_ACTIVATE | | |
475be4d8 | 792 | HFCUSB_DO_ACTION | HFCUSB_NT_G2_G3); |
69f52adb KK |
793 | break; |
794 | ||
795 | case HFC_L1_DEACTIVATE_NT: | |
796 | write_reg(hw, HFCUSB_STATES, | |
475be4d8 | 797 | HFCUSB_DO_ACTION); |
69f52adb KK |
798 | break; |
799 | } | |
800 | } | |
801 | ||
802 | /* | |
803 | * Layer 1 B-channel hardware access | |
804 | */ | |
805 | static int | |
806 | channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) | |
807 | { | |
6d1ee48f | 808 | return mISDN_ctrl_bchannel(bch, cq); |
69f52adb KK |
809 | } |
810 | ||
811 | /* collect data from incoming interrupt or isochron USB data */ | |
812 | static void | |
813 | hfcsusb_rx_frame(struct usb_fifo *fifo, __u8 *data, unsigned int len, | |
475be4d8 | 814 | int finish) |
69f52adb KK |
815 | { |
816 | struct hfcsusb *hw = fifo->hw; | |
817 | struct sk_buff *rx_skb = NULL; | |
818 | int maxlen = 0; | |
819 | int fifon = fifo->fifonum; | |
820 | int i; | |
821 | int hdlc = 0; | |
822 | ||
823 | if (debug & DBG_HFC_CALL_TRACE) | |
824 | printk(KERN_DEBUG "%s: %s: fifo(%i) len(%i) " | |
475be4d8 JP |
825 | "dch(%p) bch(%p) ech(%p)\n", |
826 | hw->name, __func__, fifon, len, | |
827 | fifo->dch, fifo->bch, fifo->ech); | |
69f52adb KK |
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(&hw->lock); | |
839 | if (fifo->dch) { | |
840 | rx_skb = fifo->dch->rx_skb; | |
841 | maxlen = fifo->dch->maxlen; | |
842 | hdlc = 1; | |
843 | } | |
844 | if (fifo->bch) { | |
c27b46e7 KK |
845 | if (test_bit(FLG_RX_OFF, &fifo->bch->Flags)) { |
846 | fifo->bch->dropcnt += len; | |
847 | spin_unlock(&hw->lock); | |
848 | return; | |
849 | } | |
7206e659 | 850 | maxlen = bchannel_get_rxbuf(fifo->bch, len); |
69f52adb | 851 | rx_skb = fifo->bch->rx_skb; |
7206e659 KK |
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(&hw->lock); | |
858 | return; | |
859 | } | |
69f52adb KK |
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 | ||
69f52adb | 869 | if (fifo->dch || fifo->ech) { |
7206e659 KK |
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(&hw->lock); | |
882 | return; | |
883 | } | |
884 | } | |
69f52adb KK |
885 | /* D/E-Channel SKB range check */ |
886 | if ((rx_skb->len + len) >= MAX_DFRAME_LEN_L1) { | |
887 | printk(KERN_DEBUG "%s: %s: sbk mem exceeded " | |
475be4d8 JP |
888 | "for fifo(%d) HFCUSB_D_RX\n", |
889 | hw->name, __func__, fifon); | |
69f52adb KK |
890 | skb_trim(rx_skb, 0); |
891 | spin_unlock(&hw->lock); | |
892 | return; | |
893 | } | |
69f52adb KK |
894 | } |
895 | ||
59ae1d12 | 896 | skb_put_data(rx_skb, data, len); |
69f52adb KK |
897 | |
898 | if (hdlc) { | |
899 | /* we have a complete hdlc packet */ | |
900 | if (finish) { | |
901 | if ((rx_skb->len > 3) && | |
475be4d8 | 902 | (!(rx_skb->data[rx_skb->len - 1]))) { |
69f52adb KK |
903 | if (debug & DBG_HFC_FIFO_VERBOSE) { |
904 | printk(KERN_DEBUG "%s: %s: fifon(%i)" | |
475be4d8 JP |
905 | " new RX len(%i): ", |
906 | hw->name, __func__, fifon, | |
907 | rx_skb->len); | |
69f52adb KK |
908 | i = 0; |
909 | while (i < rx_skb->len) | |
910 | printk("%02x ", | |
475be4d8 | 911 | rx_skb->data[i++]); |
69f52adb KK |
912 | printk("\n"); |
913 | } | |
914 | ||
915 | /* remove CRC & status */ | |
916 | skb_trim(rx_skb, rx_skb->len - 3); | |
917 | ||
918 | if (fifo->dch) | |
919 | recv_Dchannel(fifo->dch); | |
920 | if (fifo->bch) | |
034005a0 KK |
921 | recv_Bchannel(fifo->bch, MISDN_ID_ANY, |
922 | 0); | |
69f52adb KK |
923 | if (fifo->ech) |
924 | recv_Echannel(fifo->ech, | |
475be4d8 | 925 | &hw->dch); |
69f52adb KK |
926 | } else { |
927 | if (debug & DBG_HFC_FIFO_VERBOSE) { | |
928 | printk(KERN_DEBUG | |
475be4d8 JP |
929 | "%s: CRC or minlen ERROR fifon(%i) " |
930 | "RX len(%i): ", | |
931 | hw->name, fifon, rx_skb->len); | |
69f52adb KK |
932 | i = 0; |
933 | while (i < rx_skb->len) | |
934 | printk("%02x ", | |
475be4d8 | 935 | rx_skb->data[i++]); |
69f52adb KK |
936 | printk("\n"); |
937 | } | |
938 | skb_trim(rx_skb, 0); | |
939 | } | |
940 | } | |
941 | } else { | |
942 | /* deliver transparent data to layer2 */ | |
034005a0 | 943 | recv_Bchannel(fifo->bch, MISDN_ID_ANY, false); |
69f52adb KK |
944 | } |
945 | spin_unlock(&hw->lock); | |
946 | } | |
947 | ||
6c2959aa | 948 | static void |
69f52adb KK |
949 | fill_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, | |
475be4d8 | 956 | complete, context); |
69f52adb KK |
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 | /* receive completion routine for all ISO tx fifos */ | |
971 | static void | |
972 | rx_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, | |
475be4d8 | 978 | status, iso_status, i; |
69f52adb KK |
979 | __u8 *buf; |
980 | static __u8 eof[8]; | |
981 | __u8 s0_state; | |
982 | ||
983 | fifon = fifo->fifonum; | |
984 | status = urb->status; | |
985 | ||
986 | spin_lock(&hw->lock); | |
987 | if (fifo->stop_gracefull) { | |
988 | fifo->stop_gracefull = 0; | |
989 | fifo->active = 0; | |
990 | spin_unlock(&hw->lock); | |
991 | return; | |
992 | } | |
993 | spin_unlock(&hw->lock); | |
994 | ||
995 | /* | |
996 | * ISO transfer only partially completed, | |
997 | * look at individual frame status for details | |
998 | */ | |
999 | if (status == -EXDEV) { | |
1000 | if (debug & DEBUG_HW) | |
1001 | printk(KERN_DEBUG "%s: %s: with -EXDEV " | |
475be4d8 JP |
1002 | "urb->status %d, fifonum %d\n", |
1003 | hw->name, __func__, status, fifon); | |
69f52adb KK |
1004 | |
1005 | /* clear status, so go on with ISO transfers */ | |
1006 | status = 0; | |
1007 | } | |
1008 | ||
1009 | s0_state = 0; | |
1010 | if (fifo->active && !status) { | |
1011 | num_isoc_packets = iso_packets[fifon]; | |
1012 | maxlen = fifo->usb_packet_maxlen; | |
1013 | ||
1014 | for (k = 0; k < num_isoc_packets; ++k) { | |
1015 | len = urb->iso_frame_desc[k].actual_length; | |
1016 | offset = urb->iso_frame_desc[k].offset; | |
1017 | buf = context_iso_urb->buffer + offset; | |
1018 | iso_status = urb->iso_frame_desc[k].status; | |
1019 | ||
1020 | if (iso_status && (debug & DBG_HFC_FIFO_VERBOSE)) { | |
1021 | printk(KERN_DEBUG "%s: %s: " | |
475be4d8 JP |
1022 | "ISO packet %i, status: %i\n", |
1023 | hw->name, __func__, k, iso_status); | |
69f52adb KK |
1024 | } |
1025 | ||
1026 | /* USB data log for every D ISO in */ | |
1027 | if ((fifon == HFCUSB_D_RX) && | |
1028 | (debug & DBG_HFC_USB_VERBOSE)) { | |
1029 | printk(KERN_DEBUG | |
475be4d8 JP |
1030 | "%s: %s: %d (%d/%d) len(%d) ", |
1031 | hw->name, __func__, urb->start_frame, | |
1032 | k, num_isoc_packets - 1, | |
1033 | len); | |
69f52adb KK |
1034 | for (i = 0; i < len; i++) |
1035 | printk("%x ", buf[i]); | |
1036 | printk("\n"); | |
1037 | } | |
1038 | ||
1039 | if (!iso_status) { | |
1040 | if (fifo->last_urblen != maxlen) { | |
1041 | /* | |
1042 | * save fifo fill-level threshold bits | |
1043 | * to use them later in TX ISO URB | |
1044 | * completions | |
1045 | */ | |
1046 | hw->threshold_mask = buf[1]; | |
1047 | ||
1048 | if (fifon == HFCUSB_D_RX) | |
1049 | s0_state = (buf[0] >> 4); | |
1050 | ||
1051 | eof[fifon] = buf[0] & 1; | |
1052 | if (len > 2) | |
1053 | hfcsusb_rx_frame(fifo, buf + 2, | |
475be4d8 JP |
1054 | len - 2, (len < maxlen) |
1055 | ? eof[fifon] : 0); | |
69f52adb KK |
1056 | } else |
1057 | hfcsusb_rx_frame(fifo, buf, len, | |
475be4d8 JP |
1058 | (len < maxlen) ? |
1059 | eof[fifon] : 0); | |
69f52adb KK |
1060 | fifo->last_urblen = len; |
1061 | } | |
1062 | } | |
1063 | ||
1064 | /* signal S0 layer1 state change */ | |
1065 | if ((s0_state) && (hw->initdone) && | |
1066 | (s0_state != hw->dch.state)) { | |
1067 | hw->dch.state = s0_state; | |
1068 | schedule_event(&hw->dch, FLG_PHCHANGE); | |
1069 | } | |
1070 | ||
1071 | fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe, | |
1072 | context_iso_urb->buffer, num_isoc_packets, | |
1073 | fifo->usb_packet_maxlen, fifo->intervall, | |
1074 | (usb_complete_t)rx_iso_complete, urb->context); | |
1075 | errcode = usb_submit_urb(urb, GFP_ATOMIC); | |
1076 | if (errcode < 0) { | |
1077 | if (debug & DEBUG_HW) | |
1078 | printk(KERN_DEBUG "%s: %s: error submitting " | |
475be4d8 JP |
1079 | "ISO URB: %d\n", |
1080 | hw->name, __func__, errcode); | |
69f52adb KK |
1081 | } |
1082 | } else { | |
1083 | if (status && (debug & DBG_HFC_URB_INFO)) | |
1084 | printk(KERN_DEBUG "%s: %s: rx_iso_complete : " | |
475be4d8 JP |
1085 | "urb->status %d, fifonum %d\n", |
1086 | hw->name, __func__, status, fifon); | |
69f52adb KK |
1087 | } |
1088 | } | |
1089 | ||
1090 | /* receive completion routine for all interrupt rx fifos */ | |
1091 | static void | |
1092 | rx_int_complete(struct urb *urb) | |
1093 | { | |
1094 | int len, status, i; | |
1095 | __u8 *buf, maxlen, fifon; | |
1096 | struct usb_fifo *fifo = (struct usb_fifo *) urb->context; | |
1097 | struct hfcsusb *hw = fifo->hw; | |
1098 | static __u8 eof[8]; | |
1099 | ||
1100 | spin_lock(&hw->lock); | |
1101 | if (fifo->stop_gracefull) { | |
1102 | fifo->stop_gracefull = 0; | |
1103 | fifo->active = 0; | |
1104 | spin_unlock(&hw->lock); | |
1105 | return; | |
1106 | } | |
1107 | spin_unlock(&hw->lock); | |
1108 | ||
1109 | fifon = fifo->fifonum; | |
1110 | if ((!fifo->active) || (urb->status)) { | |
1111 | if (debug & DBG_HFC_URB_ERROR) | |
1112 | printk(KERN_DEBUG | |
475be4d8 JP |
1113 | "%s: %s: RX-Fifo %i is going down (%i)\n", |
1114 | hw->name, __func__, fifon, urb->status); | |
69f52adb KK |
1115 | |
1116 | fifo->urb->interval = 0; /* cancel automatic rescheduling */ | |
1117 | return; | |
1118 | } | |
1119 | len = urb->actual_length; | |
1120 | buf = fifo->buffer; | |
1121 | maxlen = fifo->usb_packet_maxlen; | |
1122 | ||
1123 | /* USB data log for every D INT in */ | |
1124 | if ((fifon == HFCUSB_D_RX) && (debug & DBG_HFC_USB_VERBOSE)) { | |
1125 | printk(KERN_DEBUG "%s: %s: D RX INT len(%d) ", | |
475be4d8 | 1126 | hw->name, __func__, len); |
69f52adb KK |
1127 | for (i = 0; i < len; i++) |
1128 | printk("%02x ", buf[i]); | |
1129 | printk("\n"); | |
1130 | } | |
1131 | ||
1132 | if (fifo->last_urblen != fifo->usb_packet_maxlen) { | |
1133 | /* the threshold mask is in the 2nd status byte */ | |
1134 | hw->threshold_mask = buf[1]; | |
1135 | ||
1136 | /* signal S0 layer1 state change */ | |
1137 | if (hw->initdone && ((buf[0] >> 4) != hw->dch.state)) { | |
1138 | hw->dch.state = (buf[0] >> 4); | |
1139 | schedule_event(&hw->dch, FLG_PHCHANGE); | |
1140 | } | |
1141 | ||
1142 | eof[fifon] = buf[0] & 1; | |
1143 | /* if we have more than the 2 status bytes -> collect data */ | |
1144 | if (len > 2) | |
1145 | hfcsusb_rx_frame(fifo, buf + 2, | |
475be4d8 JP |
1146 | urb->actual_length - 2, |
1147 | (len < maxlen) ? eof[fifon] : 0); | |
69f52adb KK |
1148 | } else { |
1149 | hfcsusb_rx_frame(fifo, buf, urb->actual_length, | |
1150 | (len < maxlen) ? eof[fifon] : 0); | |
1151 | } | |
1152 | fifo->last_urblen = urb->actual_length; | |
1153 | ||
1154 | status = usb_submit_urb(urb, GFP_ATOMIC); | |
1155 | if (status) { | |
1156 | if (debug & DEBUG_HW) | |
1157 | printk(KERN_DEBUG "%s: %s: error resubmitting USB\n", | |
475be4d8 | 1158 | hw->name, __func__); |
69f52adb KK |
1159 | } |
1160 | } | |
1161 | ||
1162 | /* transmit completion routine for all ISO tx fifos */ | |
1163 | static void | |
1164 | tx_iso_complete(struct urb *urb) | |
1165 | { | |
1166 | struct iso_urb *context_iso_urb = (struct iso_urb *) urb->context; | |
1167 | struct usb_fifo *fifo = context_iso_urb->owner_fifo; | |
1168 | struct hfcsusb *hw = fifo->hw; | |
1169 | struct sk_buff *tx_skb; | |
1170 | int k, tx_offset, num_isoc_packets, sink, remain, current_len, | |
475be4d8 | 1171 | errcode, hdlc, i; |
69f52adb | 1172 | int *tx_idx; |
6d1ee48f KK |
1173 | int frame_complete, fifon, status, fillempty = 0; |
1174 | __u8 threshbit, *p; | |
69f52adb KK |
1175 | |
1176 | spin_lock(&hw->lock); | |
1177 | if (fifo->stop_gracefull) { | |
1178 | fifo->stop_gracefull = 0; | |
1179 | fifo->active = 0; | |
1180 | spin_unlock(&hw->lock); | |
1181 | return; | |
1182 | } | |
1183 | ||
1184 | if (fifo->dch) { | |
1185 | tx_skb = fifo->dch->tx_skb; | |
1186 | tx_idx = &fifo->dch->tx_idx; | |
1187 | hdlc = 1; | |
1188 | } else if (fifo->bch) { | |
1189 | tx_skb = fifo->bch->tx_skb; | |
1190 | tx_idx = &fifo->bch->tx_idx; | |
1191 | hdlc = test_bit(FLG_HDLC, &fifo->bch->Flags); | |
6d1ee48f KK |
1192 | if (!tx_skb && !hdlc && |
1193 | test_bit(FLG_FILLEMPTY, &fifo->bch->Flags)) | |
1194 | fillempty = 1; | |
69f52adb KK |
1195 | } else { |
1196 | printk(KERN_DEBUG "%s: %s: neither BCH nor DCH\n", | |
475be4d8 | 1197 | hw->name, __func__); |
69f52adb KK |
1198 | spin_unlock(&hw->lock); |
1199 | return; | |
1200 | } | |
1201 | ||
1202 | fifon = fifo->fifonum; | |
1203 | status = urb->status; | |
1204 | ||
1205 | tx_offset = 0; | |
1206 | ||
1207 | /* | |
1208 | * ISO transfer only partially completed, | |
1209 | * look at individual frame status for details | |
1210 | */ | |
1211 | if (status == -EXDEV) { | |
1212 | if (debug & DBG_HFC_URB_ERROR) | |
1213 | printk(KERN_DEBUG "%s: %s: " | |
475be4d8 JP |
1214 | "-EXDEV (%i) fifon (%d)\n", |
1215 | hw->name, __func__, status, fifon); | |
69f52adb KK |
1216 | |
1217 | /* clear status, so go on with ISO transfers */ | |
1218 | status = 0; | |
1219 | } | |
1220 | ||
1221 | if (fifo->active && !status) { | |
1222 | /* is FifoFull-threshold set for our channel? */ | |
1223 | threshbit = (hw->threshold_mask & (1 << fifon)); | |
1224 | num_isoc_packets = iso_packets[fifon]; | |
1225 | ||
1226 | /* predict dataflow to avoid fifo overflow */ | |
1227 | if (fifon >= HFCUSB_D_TX) | |
1228 | sink = (threshbit) ? SINK_DMIN : SINK_DMAX; | |
1229 | else | |
1230 | sink = (threshbit) ? SINK_MIN : SINK_MAX; | |
1231 | fill_isoc_urb(urb, fifo->hw->dev, fifo->pipe, | |
1232 | context_iso_urb->buffer, num_isoc_packets, | |
1233 | fifo->usb_packet_maxlen, fifo->intervall, | |
1234 | (usb_complete_t)tx_iso_complete, urb->context); | |
1235 | memset(context_iso_urb->buffer, 0, | |
1236 | sizeof(context_iso_urb->buffer)); | |
1237 | frame_complete = 0; | |
1238 | ||
1239 | for (k = 0; k < num_isoc_packets; ++k) { | |
1240 | /* analyze tx success of previous ISO packets */ | |
1241 | if (debug & DBG_HFC_URB_ERROR) { | |
1242 | errcode = urb->iso_frame_desc[k].status; | |
1243 | if (errcode) { | |
1244 | printk(KERN_DEBUG "%s: %s: " | |
475be4d8 JP |
1245 | "ISO packet %i, status: %i\n", |
1246 | hw->name, __func__, k, errcode); | |
69f52adb KK |
1247 | } |
1248 | } | |
1249 | ||
1250 | /* Generate next ISO Packets */ | |
1251 | if (tx_skb) | |
1252 | remain = tx_skb->len - *tx_idx; | |
6d1ee48f KK |
1253 | else if (fillempty) |
1254 | remain = 15; /* > not complete */ | |
69f52adb KK |
1255 | else |
1256 | remain = 0; | |
1257 | ||
1258 | if (remain > 0) { | |
1259 | fifo->bit_line -= sink; | |
1260 | current_len = (0 - fifo->bit_line) / 8; | |
1261 | if (current_len > 14) | |
1262 | current_len = 14; | |
1263 | if (current_len < 0) | |
1264 | current_len = 0; | |
1265 | if (remain < current_len) | |
1266 | current_len = remain; | |
1267 | ||
1268 | /* how much bit do we put on the line? */ | |
1269 | fifo->bit_line += current_len * 8; | |
1270 | ||
1271 | context_iso_urb->buffer[tx_offset] = 0; | |
1272 | if (current_len == remain) { | |
1273 | if (hdlc) { | |
1274 | /* signal frame completion */ | |
1275 | context_iso_urb-> | |
475be4d8 | 1276 | buffer[tx_offset] = 1; |
69f52adb KK |
1277 | /* add 2 byte flags and 16bit |
1278 | * CRC at end of ISDN frame */ | |
1279 | fifo->bit_line += 32; | |
1280 | } | |
1281 | frame_complete = 1; | |
1282 | } | |
1283 | ||
1284 | /* copy tx data to iso-urb buffer */ | |
6d1ee48f KK |
1285 | p = context_iso_urb->buffer + tx_offset + 1; |
1286 | if (fillempty) { | |
1287 | memset(p, fifo->bch->fill[0], | |
1288 | current_len); | |
1289 | } else { | |
1290 | memcpy(p, (tx_skb->data + *tx_idx), | |
1291 | current_len); | |
1292 | *tx_idx += current_len; | |
1293 | } | |
69f52adb KK |
1294 | urb->iso_frame_desc[k].offset = tx_offset; |
1295 | urb->iso_frame_desc[k].length = current_len + 1; | |
1296 | ||
1297 | /* USB data log for every D ISO out */ | |
6d1ee48f | 1298 | if ((fifon == HFCUSB_D_RX) && !fillempty && |
69f52adb KK |
1299 | (debug & DBG_HFC_USB_VERBOSE)) { |
1300 | printk(KERN_DEBUG | |
475be4d8 JP |
1301 | "%s: %s (%d/%d) offs(%d) len(%d) ", |
1302 | hw->name, __func__, | |
1303 | k, num_isoc_packets - 1, | |
1304 | urb->iso_frame_desc[k].offset, | |
1305 | urb->iso_frame_desc[k].length); | |
69f52adb KK |
1306 | |
1307 | for (i = urb->iso_frame_desc[k].offset; | |
1308 | i < (urb->iso_frame_desc[k].offset | |
475be4d8 | 1309 | + urb->iso_frame_desc[k].length); |
69f52adb KK |
1310 | i++) |
1311 | printk("%x ", | |
475be4d8 | 1312 | context_iso_urb->buffer[i]); |
69f52adb KK |
1313 | |
1314 | printk(" skb->len(%i) tx-idx(%d)\n", | |
475be4d8 | 1315 | tx_skb->len, *tx_idx); |
69f52adb KK |
1316 | } |
1317 | ||
1318 | tx_offset += (current_len + 1); | |
1319 | } else { | |
1320 | urb->iso_frame_desc[k].offset = tx_offset++; | |
1321 | urb->iso_frame_desc[k].length = 1; | |
1322 | /* we lower data margin every msec */ | |
1323 | fifo->bit_line -= sink; | |
1324 | if (fifo->bit_line < BITLINE_INF) | |
1325 | fifo->bit_line = BITLINE_INF; | |
1326 | } | |
1327 | ||
1328 | if (frame_complete) { | |
1329 | frame_complete = 0; | |
1330 | ||
1331 | if (debug & DBG_HFC_FIFO_VERBOSE) { | |
1332 | printk(KERN_DEBUG "%s: %s: " | |
475be4d8 JP |
1333 | "fifon(%i) new TX len(%i): ", |
1334 | hw->name, __func__, | |
1335 | fifon, tx_skb->len); | |
69f52adb KK |
1336 | i = 0; |
1337 | while (i < tx_skb->len) | |
1338 | printk("%02x ", | |
475be4d8 | 1339 | tx_skb->data[i++]); |
69f52adb KK |
1340 | printk("\n"); |
1341 | } | |
1342 | ||
1343 | dev_kfree_skb(tx_skb); | |
1344 | tx_skb = NULL; | |
1345 | if (fifo->dch && get_next_dframe(fifo->dch)) | |
1346 | tx_skb = fifo->dch->tx_skb; | |
1347 | else if (fifo->bch && | |
8bfddfbe | 1348 | get_next_bframe(fifo->bch)) |
69f52adb | 1349 | tx_skb = fifo->bch->tx_skb; |
69f52adb KK |
1350 | } |
1351 | } | |
1352 | errcode = usb_submit_urb(urb, GFP_ATOMIC); | |
1353 | if (errcode < 0) { | |
1354 | if (debug & DEBUG_HW) | |
1355 | printk(KERN_DEBUG | |
475be4d8 JP |
1356 | "%s: %s: error submitting ISO URB: %d \n", |
1357 | hw->name, __func__, errcode); | |
69f52adb KK |
1358 | } |
1359 | ||
1360 | /* | |
1361 | * abuse DChannel tx iso completion to trigger NT mode state | |
1362 | * changes tx_iso_complete is assumed to be called every | |
1363 | * fifo->intervall (ms) | |
1364 | */ | |
1365 | if ((fifon == HFCUSB_D_TX) && (hw->protocol == ISDN_P_NT_S0) | |
1366 | && (hw->timers & NT_ACTIVATION_TIMER)) { | |
1367 | if ((--hw->nt_timer) < 0) | |
1368 | schedule_event(&hw->dch, FLG_PHCHANGE); | |
1369 | } | |
1370 | ||
1371 | } else { | |
1372 | if (status && (debug & DBG_HFC_URB_ERROR)) | |
1373 | printk(KERN_DEBUG "%s: %s: urb->status %s (%i)" | |
475be4d8 JP |
1374 | "fifonum=%d\n", |
1375 | hw->name, __func__, | |
1376 | symbolic(urb_errlist, status), status, fifon); | |
69f52adb KK |
1377 | } |
1378 | spin_unlock(&hw->lock); | |
1379 | } | |
1380 | ||
1381 | /* | |
1382 | * allocs urbs and start isoc transfer with two pending urbs to avoid | |
1383 | * gaps in the transfer chain | |
1384 | */ | |
1385 | static int | |
1386 | start_isoc_chain(struct usb_fifo *fifo, int num_packets_per_urb, | |
1387 | usb_complete_t complete, int packet_size) | |
1388 | { | |
1389 | struct hfcsusb *hw = fifo->hw; | |
1390 | int i, k, errcode; | |
1391 | ||
1392 | if (debug) | |
1393 | printk(KERN_DEBUG "%s: %s: fifo %i\n", | |
475be4d8 | 1394 | hw->name, __func__, fifo->fifonum); |
69f52adb KK |
1395 | |
1396 | /* allocate Memory for Iso out Urbs */ | |
1397 | for (i = 0; i < 2; i++) { | |
1398 | if (!(fifo->iso[i].urb)) { | |
1399 | fifo->iso[i].urb = | |
475be4d8 | 1400 | usb_alloc_urb(num_packets_per_urb, GFP_KERNEL); |
69f52adb KK |
1401 | if (!(fifo->iso[i].urb)) { |
1402 | printk(KERN_DEBUG | |
475be4d8 JP |
1403 | "%s: %s: alloc urb for fifo %i failed", |
1404 | hw->name, __func__, fifo->fifonum); | |
69f52adb KK |
1405 | } |
1406 | fifo->iso[i].owner_fifo = (struct usb_fifo *) fifo; | |
1407 | fifo->iso[i].indx = i; | |
1408 | ||
1409 | /* Init the first iso */ | |
1410 | if (ISO_BUFFER_SIZE >= | |
1411 | (fifo->usb_packet_maxlen * | |
1412 | num_packets_per_urb)) { | |
1413 | fill_isoc_urb(fifo->iso[i].urb, | |
475be4d8 JP |
1414 | fifo->hw->dev, fifo->pipe, |
1415 | fifo->iso[i].buffer, | |
1416 | num_packets_per_urb, | |
1417 | fifo->usb_packet_maxlen, | |
1418 | fifo->intervall, complete, | |
1419 | &fifo->iso[i]); | |
69f52adb KK |
1420 | memset(fifo->iso[i].buffer, 0, |
1421 | sizeof(fifo->iso[i].buffer)); | |
1422 | ||
1423 | for (k = 0; k < num_packets_per_urb; k++) { | |
1424 | fifo->iso[i].urb-> | |
475be4d8 JP |
1425 | iso_frame_desc[k].offset = |
1426 | k * packet_size; | |
69f52adb | 1427 | fifo->iso[i].urb-> |
475be4d8 JP |
1428 | iso_frame_desc[k].length = |
1429 | packet_size; | |
69f52adb KK |
1430 | } |
1431 | } else { | |
1432 | printk(KERN_DEBUG | |
475be4d8 JP |
1433 | "%s: %s: ISO Buffer size to small!\n", |
1434 | hw->name, __func__); | |
69f52adb KK |
1435 | } |
1436 | } | |
1437 | fifo->bit_line = BITLINE_INF; | |
1438 | ||
1439 | errcode = usb_submit_urb(fifo->iso[i].urb, GFP_KERNEL); | |
1440 | fifo->active = (errcode >= 0) ? 1 : 0; | |
1441 | fifo->stop_gracefull = 0; | |
1442 | if (errcode < 0) { | |
1443 | printk(KERN_DEBUG "%s: %s: %s URB nr:%d\n", | |
475be4d8 JP |
1444 | hw->name, __func__, |
1445 | symbolic(urb_errlist, errcode), i); | |
69f52adb KK |
1446 | } |
1447 | } | |
1448 | return fifo->active; | |
1449 | } | |
1450 | ||
1451 | static void | |
1452 | stop_iso_gracefull(struct usb_fifo *fifo) | |
1453 | { | |
1454 | struct hfcsusb *hw = fifo->hw; | |
1455 | int i, timeout; | |
1456 | u_long flags; | |
1457 | ||
1458 | for (i = 0; i < 2; i++) { | |
1459 | spin_lock_irqsave(&hw->lock, flags); | |
1460 | if (debug) | |
1461 | printk(KERN_DEBUG "%s: %s for fifo %i.%i\n", | |
1462 | hw->name, __func__, fifo->fifonum, i); | |
1463 | fifo->stop_gracefull = 1; | |
1464 | spin_unlock_irqrestore(&hw->lock, flags); | |
1465 | } | |
1466 | ||
1467 | for (i = 0; i < 2; i++) { | |
1468 | timeout = 3; | |
1469 | while (fifo->stop_gracefull && timeout--) | |
475be4d8 | 1470 | schedule_timeout_interruptible((HZ / 1000) * 16); |
69f52adb KK |
1471 | if (debug && fifo->stop_gracefull) |
1472 | printk(KERN_DEBUG "%s: ERROR %s for fifo %i.%i\n", | |
475be4d8 | 1473 | hw->name, __func__, fifo->fifonum, i); |
69f52adb KK |
1474 | } |
1475 | } | |
1476 | ||
1477 | static void | |
1478 | stop_int_gracefull(struct usb_fifo *fifo) | |
1479 | { | |
1480 | struct hfcsusb *hw = fifo->hw; | |
1481 | int timeout; | |
1482 | u_long flags; | |
1483 | ||
1484 | spin_lock_irqsave(&hw->lock, flags); | |
1485 | if (debug) | |
1486 | printk(KERN_DEBUG "%s: %s for fifo %i\n", | |
1487 | hw->name, __func__, fifo->fifonum); | |
1488 | fifo->stop_gracefull = 1; | |
1489 | spin_unlock_irqrestore(&hw->lock, flags); | |
1490 | ||
1491 | timeout = 3; | |
1492 | while (fifo->stop_gracefull && timeout--) | |
475be4d8 | 1493 | schedule_timeout_interruptible((HZ / 1000) * 3); |
69f52adb KK |
1494 | if (debug && fifo->stop_gracefull) |
1495 | printk(KERN_DEBUG "%s: ERROR %s for fifo %i\n", | |
1496 | hw->name, __func__, fifo->fifonum); | |
1497 | } | |
1498 | ||
1499 | /* start the interrupt transfer for the given fifo */ | |
1500 | static void | |
1501 | start_int_fifo(struct usb_fifo *fifo) | |
1502 | { | |
1503 | struct hfcsusb *hw = fifo->hw; | |
1504 | int errcode; | |
1505 | ||
1506 | if (debug) | |
1507 | printk(KERN_DEBUG "%s: %s: INT IN fifo:%d\n", | |
475be4d8 | 1508 | hw->name, __func__, fifo->fifonum); |
69f52adb KK |
1509 | |
1510 | if (!fifo->urb) { | |
1511 | fifo->urb = usb_alloc_urb(0, GFP_KERNEL); | |
1512 | if (!fifo->urb) | |
1513 | return; | |
1514 | } | |
1515 | usb_fill_int_urb(fifo->urb, fifo->hw->dev, fifo->pipe, | |
475be4d8 JP |
1516 | fifo->buffer, fifo->usb_packet_maxlen, |
1517 | (usb_complete_t)rx_int_complete, fifo, fifo->intervall); | |
69f52adb KK |
1518 | fifo->active = 1; |
1519 | fifo->stop_gracefull = 0; | |
1520 | errcode = usb_submit_urb(fifo->urb, GFP_KERNEL); | |
1521 | if (errcode) { | |
1522 | printk(KERN_DEBUG "%s: %s: submit URB: status:%i\n", | |
475be4d8 | 1523 | hw->name, __func__, errcode); |
69f52adb KK |
1524 | fifo->active = 0; |
1525 | } | |
1526 | } | |
1527 | ||
1528 | static void | |
1529 | setPortMode(struct hfcsusb *hw) | |
1530 | { | |
1531 | if (debug & DEBUG_HW) | |
1532 | printk(KERN_DEBUG "%s: %s %s\n", hw->name, __func__, | |
475be4d8 | 1533 | (hw->protocol == ISDN_P_TE_S0) ? "TE" : "NT"); |
69f52adb KK |
1534 | |
1535 | if (hw->protocol == ISDN_P_TE_S0) { | |
1536 | write_reg(hw, HFCUSB_SCTRL, 0x40); | |
1537 | write_reg(hw, HFCUSB_SCTRL_E, 0x00); | |
1538 | write_reg(hw, HFCUSB_CLKDEL, CLKDEL_TE); | |
1539 | write_reg(hw, HFCUSB_STATES, 3 | 0x10); | |
1540 | write_reg(hw, HFCUSB_STATES, 3); | |
1541 | } else { | |
1542 | write_reg(hw, HFCUSB_SCTRL, 0x44); | |
1543 | write_reg(hw, HFCUSB_SCTRL_E, 0x09); | |
1544 | write_reg(hw, HFCUSB_CLKDEL, CLKDEL_NT); | |
1545 | write_reg(hw, HFCUSB_STATES, 1 | 0x10); | |
1546 | write_reg(hw, HFCUSB_STATES, 1); | |
1547 | } | |
1548 | } | |
1549 | ||
1550 | static void | |
1551 | reset_hfcsusb(struct hfcsusb *hw) | |
1552 | { | |
1553 | struct usb_fifo *fifo; | |
1554 | int i; | |
1555 | ||
1556 | if (debug & DEBUG_HW) | |
1557 | printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); | |
1558 | ||
1559 | /* do Chip reset */ | |
1560 | write_reg(hw, HFCUSB_CIRM, 8); | |
1561 | ||
1562 | /* aux = output, reset off */ | |
1563 | write_reg(hw, HFCUSB_CIRM, 0x10); | |
1564 | ||
1565 | /* set USB_SIZE to match the wMaxPacketSize for INT or BULK transfers */ | |
1566 | write_reg(hw, HFCUSB_USB_SIZE, (hw->packet_size / 8) | | |
475be4d8 | 1567 | ((hw->packet_size / 8) << 4)); |
69f52adb KK |
1568 | |
1569 | /* set USB_SIZE_I to match the the wMaxPacketSize for ISO transfers */ | |
1570 | write_reg(hw, HFCUSB_USB_SIZE_I, hw->iso_packet_size); | |
1571 | ||
1572 | /* enable PCM/GCI master mode */ | |
1573 | write_reg(hw, HFCUSB_MST_MODE1, 0); /* set default values */ | |
1574 | write_reg(hw, HFCUSB_MST_MODE0, 1); /* enable master mode */ | |
1575 | ||
1576 | /* init the fifos */ | |
1577 | write_reg(hw, HFCUSB_F_THRES, | |
475be4d8 | 1578 | (HFCUSB_TX_THRESHOLD / 8) | ((HFCUSB_RX_THRESHOLD / 8) << 4)); |
69f52adb KK |
1579 | |
1580 | fifo = hw->fifos; | |
1581 | for (i = 0; i < HFCUSB_NUM_FIFOS; i++) { | |
1582 | write_reg(hw, HFCUSB_FIFO, i); /* select the desired fifo */ | |
1583 | fifo[i].max_size = | |
475be4d8 | 1584 | (i <= HFCUSB_B2_RX) ? MAX_BCH_SIZE : MAX_DFRAME_LEN; |
69f52adb KK |
1585 | fifo[i].last_urblen = 0; |
1586 | ||
1587 | /* set 2 bit for D- & E-channel */ | |
1588 | write_reg(hw, HFCUSB_HDLC_PAR, ((i <= HFCUSB_B2_RX) ? 0 : 2)); | |
1589 | ||
1590 | /* enable all fifos */ | |
1591 | if (i == HFCUSB_D_TX) | |
1592 | write_reg(hw, HFCUSB_CON_HDLC, | |
475be4d8 | 1593 | (hw->protocol == ISDN_P_NT_S0) ? 0x08 : 0x09); |
69f52adb KK |
1594 | else |
1595 | write_reg(hw, HFCUSB_CON_HDLC, 0x08); | |
1596 | write_reg(hw, HFCUSB_INC_RES_F, 2); /* reset the fifo */ | |
1597 | } | |
1598 | ||
1599 | write_reg(hw, HFCUSB_SCTRL_R, 0); /* disable both B receivers */ | |
1600 | handle_led(hw, LED_POWER_ON); | |
1601 | } | |
1602 | ||
1603 | /* start USB data pipes dependand on device's endpoint configuration */ | |
1604 | static void | |
1605 | hfcsusb_start_endpoint(struct hfcsusb *hw, int channel) | |
1606 | { | |
1607 | /* quick check if endpoint already running */ | |
1608 | if ((channel == HFC_CHAN_D) && (hw->fifos[HFCUSB_D_RX].active)) | |
1609 | return; | |
1610 | if ((channel == HFC_CHAN_B1) && (hw->fifos[HFCUSB_B1_RX].active)) | |
1611 | return; | |
1612 | if ((channel == HFC_CHAN_B2) && (hw->fifos[HFCUSB_B2_RX].active)) | |
1613 | return; | |
1614 | if ((channel == HFC_CHAN_E) && (hw->fifos[HFCUSB_PCM_RX].active)) | |
1615 | return; | |
1616 | ||
1617 | /* start rx endpoints using USB INT IN method */ | |
1618 | if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO) | |
475be4d8 | 1619 | start_int_fifo(hw->fifos + channel * 2 + 1); |
69f52adb KK |
1620 | |
1621 | /* start rx endpoints using USB ISO IN method */ | |
1622 | if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO) { | |
1623 | switch (channel) { | |
1624 | case HFC_CHAN_D: | |
1625 | start_isoc_chain(hw->fifos + HFCUSB_D_RX, | |
475be4d8 JP |
1626 | ISOC_PACKETS_D, |
1627 | (usb_complete_t)rx_iso_complete, | |
1628 | 16); | |
69f52adb KK |
1629 | break; |
1630 | case HFC_CHAN_E: | |
1631 | start_isoc_chain(hw->fifos + HFCUSB_PCM_RX, | |
475be4d8 JP |
1632 | ISOC_PACKETS_D, |
1633 | (usb_complete_t)rx_iso_complete, | |
1634 | 16); | |
69f52adb KK |
1635 | break; |
1636 | case HFC_CHAN_B1: | |
1637 | start_isoc_chain(hw->fifos + HFCUSB_B1_RX, | |
475be4d8 JP |
1638 | ISOC_PACKETS_B, |
1639 | (usb_complete_t)rx_iso_complete, | |
1640 | 16); | |
69f52adb KK |
1641 | break; |
1642 | case HFC_CHAN_B2: | |
1643 | start_isoc_chain(hw->fifos + HFCUSB_B2_RX, | |
475be4d8 JP |
1644 | ISOC_PACKETS_B, |
1645 | (usb_complete_t)rx_iso_complete, | |
1646 | 16); | |
69f52adb KK |
1647 | break; |
1648 | } | |
1649 | } | |
1650 | ||
1651 | /* start tx endpoints using USB ISO OUT method */ | |
1652 | switch (channel) { | |
1653 | case HFC_CHAN_D: | |
1654 | start_isoc_chain(hw->fifos + HFCUSB_D_TX, | |
475be4d8 JP |
1655 | ISOC_PACKETS_B, |
1656 | (usb_complete_t)tx_iso_complete, 1); | |
69f52adb KK |
1657 | break; |
1658 | case HFC_CHAN_B1: | |
1659 | start_isoc_chain(hw->fifos + HFCUSB_B1_TX, | |
475be4d8 JP |
1660 | ISOC_PACKETS_D, |
1661 | (usb_complete_t)tx_iso_complete, 1); | |
69f52adb KK |
1662 | break; |
1663 | case HFC_CHAN_B2: | |
1664 | start_isoc_chain(hw->fifos + HFCUSB_B2_TX, | |
475be4d8 JP |
1665 | ISOC_PACKETS_B, |
1666 | (usb_complete_t)tx_iso_complete, 1); | |
69f52adb KK |
1667 | break; |
1668 | } | |
1669 | } | |
1670 | ||
1671 | /* stop USB data pipes dependand on device's endpoint configuration */ | |
1672 | static void | |
1673 | hfcsusb_stop_endpoint(struct hfcsusb *hw, int channel) | |
1674 | { | |
1675 | /* quick check if endpoint currently running */ | |
1676 | if ((channel == HFC_CHAN_D) && (!hw->fifos[HFCUSB_D_RX].active)) | |
1677 | return; | |
1678 | if ((channel == HFC_CHAN_B1) && (!hw->fifos[HFCUSB_B1_RX].active)) | |
1679 | return; | |
1680 | if ((channel == HFC_CHAN_B2) && (!hw->fifos[HFCUSB_B2_RX].active)) | |
1681 | return; | |
1682 | if ((channel == HFC_CHAN_E) && (!hw->fifos[HFCUSB_PCM_RX].active)) | |
1683 | return; | |
1684 | ||
1685 | /* rx endpoints using USB INT IN method */ | |
1686 | if (hw->cfg_used == CNF_3INT3ISO || hw->cfg_used == CNF_4INT3ISO) | |
475be4d8 | 1687 | stop_int_gracefull(hw->fifos + channel * 2 + 1); |
69f52adb KK |
1688 | |
1689 | /* rx endpoints using USB ISO IN method */ | |
1690 | if (hw->cfg_used == CNF_3ISO3ISO || hw->cfg_used == CNF_4ISO3ISO) | |
475be4d8 | 1691 | stop_iso_gracefull(hw->fifos + channel * 2 + 1); |
69f52adb KK |
1692 | |
1693 | /* tx endpoints using USB ISO OUT method */ | |
1694 | if (channel != HFC_CHAN_E) | |
475be4d8 | 1695 | stop_iso_gracefull(hw->fifos + channel * 2); |
69f52adb KK |
1696 | } |
1697 | ||
1698 | ||
1699 | /* Hardware Initialization */ | |
6c2959aa | 1700 | static int |
69f52adb KK |
1701 | setup_hfcsusb(struct hfcsusb *hw) |
1702 | { | |
69f52adb KK |
1703 | u_char b; |
1704 | ||
1705 | if (debug & DBG_HFC_CALL_TRACE) | |
1706 | printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); | |
1707 | ||
1708 | /* check the chip id */ | |
1709 | if (read_reg_atomic(hw, HFCUSB_CHIP_ID, &b) != 1) { | |
1710 | printk(KERN_DEBUG "%s: %s: cannot read chip id\n", | |
475be4d8 | 1711 | hw->name, __func__); |
69f52adb KK |
1712 | return 1; |
1713 | } | |
1714 | if (b != HFCUSB_CHIPID) { | |
1715 | printk(KERN_DEBUG "%s: %s: Invalid chip id 0x%02x\n", | |
475be4d8 | 1716 | hw->name, __func__, b); |
69f52adb KK |
1717 | return 1; |
1718 | } | |
1719 | ||
1720 | /* first set the needed config, interface and alternate */ | |
3c76c58f | 1721 | (void) usb_set_interface(hw->dev, hw->if_used, hw->alt_used); |
69f52adb KK |
1722 | |
1723 | hw->led_state = 0; | |
1724 | ||
1725 | /* init the background machinery for control requests */ | |
1726 | hw->ctrl_read.bRequestType = 0xc0; | |
1727 | hw->ctrl_read.bRequest = 1; | |
1728 | hw->ctrl_read.wLength = cpu_to_le16(1); | |
1729 | hw->ctrl_write.bRequestType = 0x40; | |
1730 | hw->ctrl_write.bRequest = 0; | |
1731 | hw->ctrl_write.wLength = 0; | |
1732 | usb_fill_control_urb(hw->ctrl_urb, hw->dev, hw->ctrl_out_pipe, | |
475be4d8 JP |
1733 | (u_char *)&hw->ctrl_write, NULL, 0, |
1734 | (usb_complete_t)ctrl_complete, hw); | |
69f52adb KK |
1735 | |
1736 | reset_hfcsusb(hw); | |
1737 | return 0; | |
1738 | } | |
1739 | ||
1740 | static void | |
1741 | release_hw(struct hfcsusb *hw) | |
1742 | { | |
1743 | if (debug & DBG_HFC_CALL_TRACE) | |
1744 | printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); | |
1745 | ||
1746 | /* | |
1747 | * stop all endpoints gracefully | |
1748 | * TODO: mISDN_core should generate CLOSE_CHANNEL | |
1749 | * signals after calling mISDN_unregister_device() | |
1750 | */ | |
1751 | hfcsusb_stop_endpoint(hw, HFC_CHAN_D); | |
1752 | hfcsusb_stop_endpoint(hw, HFC_CHAN_B1); | |
1753 | hfcsusb_stop_endpoint(hw, HFC_CHAN_B2); | |
1754 | if (hw->fifos[HFCUSB_PCM_RX].pipe) | |
1755 | hfcsusb_stop_endpoint(hw, HFC_CHAN_E); | |
1756 | if (hw->protocol == ISDN_P_TE_S0) | |
1757 | l1_event(hw->dch.l1, CLOSE_CHANNEL); | |
1758 | ||
1759 | mISDN_unregister_device(&hw->dch.dev); | |
1760 | mISDN_freebchannel(&hw->bch[1]); | |
1761 | mISDN_freebchannel(&hw->bch[0]); | |
1762 | mISDN_freedchannel(&hw->dch); | |
1763 | ||
1764 | if (hw->ctrl_urb) { | |
1765 | usb_kill_urb(hw->ctrl_urb); | |
1766 | usb_free_urb(hw->ctrl_urb); | |
1767 | hw->ctrl_urb = NULL; | |
1768 | } | |
1769 | ||
1770 | if (hw->intf) | |
1771 | usb_set_intfdata(hw->intf, NULL); | |
1772 | list_del(&hw->list); | |
1773 | kfree(hw); | |
1774 | hw = NULL; | |
1775 | } | |
1776 | ||
1777 | static void | |
1778 | deactivate_bchannel(struct bchannel *bch) | |
1779 | { | |
1780 | struct hfcsusb *hw = bch->hw; | |
1781 | u_long flags; | |
1782 | ||
1783 | if (bch->debug & DEBUG_HW) | |
1784 | printk(KERN_DEBUG "%s: %s: bch->nr(%i)\n", | |
475be4d8 | 1785 | hw->name, __func__, bch->nr); |
69f52adb KK |
1786 | |
1787 | spin_lock_irqsave(&hw->lock, flags); | |
fb286f04 | 1788 | mISDN_clear_bchannel(bch); |
69f52adb KK |
1789 | spin_unlock_irqrestore(&hw->lock, flags); |
1790 | hfcsusb_setup_bch(bch, ISDN_P_NONE); | |
37952cfa | 1791 | hfcsusb_stop_endpoint(hw, bch->nr - 1); |
69f52adb KK |
1792 | } |
1793 | ||
1794 | /* | |
1795 | * Layer 1 B-channel hardware access | |
1796 | */ | |
1797 | static int | |
1798 | hfc_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg) | |
1799 | { | |
1800 | struct bchannel *bch = container_of(ch, struct bchannel, ch); | |
1801 | int ret = -EINVAL; | |
1802 | ||
1803 | if (bch->debug & DEBUG_HW) | |
1804 | printk(KERN_DEBUG "%s: cmd:%x %p\n", __func__, cmd, arg); | |
1805 | ||
1806 | switch (cmd) { | |
1807 | case HW_TESTRX_RAW: | |
1808 | case HW_TESTRX_HDLC: | |
1809 | case HW_TESTRX_OFF: | |
1810 | ret = -EINVAL; | |
1811 | break; | |
1812 | ||
1813 | case CLOSE_CHANNEL: | |
1814 | test_and_clear_bit(FLG_OPEN, &bch->Flags); | |
1368112c | 1815 | deactivate_bchannel(bch); |
69f52adb KK |
1816 | ch->protocol = ISDN_P_NONE; |
1817 | ch->peer = NULL; | |
1818 | module_put(THIS_MODULE); | |
1819 | ret = 0; | |
1820 | break; | |
1821 | case CONTROL_CHANNEL: | |
1822 | ret = channel_bctrl(bch, arg); | |
1823 | break; | |
1824 | default: | |
1825 | printk(KERN_WARNING "%s: unknown prim(%x)\n", | |
475be4d8 | 1826 | __func__, cmd); |
69f52adb KK |
1827 | } |
1828 | return ret; | |
1829 | } | |
1830 | ||
1831 | static int | |
1832 | setup_instance(struct hfcsusb *hw, struct device *parent) | |
1833 | { | |
1834 | u_long flags; | |
1835 | int err, i; | |
1836 | ||
1837 | if (debug & DBG_HFC_CALL_TRACE) | |
1838 | printk(KERN_DEBUG "%s: %s\n", hw->name, __func__); | |
1839 | ||
1840 | spin_lock_init(&hw->ctrl_lock); | |
1841 | spin_lock_init(&hw->lock); | |
1842 | ||
1843 | mISDN_initdchannel(&hw->dch, MAX_DFRAME_LEN_L1, ph_state); | |
1844 | hw->dch.debug = debug & 0xFFFF; | |
1845 | hw->dch.hw = hw; | |
1846 | hw->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0); | |
1847 | hw->dch.dev.D.send = hfcusb_l2l1D; | |
1848 | hw->dch.dev.D.ctrl = hfc_dctrl; | |
1849 | ||
1850 | /* enable E-Channel logging */ | |
1851 | if (hw->fifos[HFCUSB_PCM_RX].pipe) | |
1852 | mISDN_initdchannel(&hw->ech, MAX_DFRAME_LEN_L1, NULL); | |
1853 | ||
1854 | hw->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | | |
475be4d8 | 1855 | (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); |
69f52adb KK |
1856 | hw->dch.dev.nrbchan = 2; |
1857 | for (i = 0; i < 2; i++) { | |
1858 | hw->bch[i].nr = i + 1; | |
1859 | set_channelmap(i + 1, hw->dch.dev.channelmap); | |
1860 | hw->bch[i].debug = debug; | |
034005a0 | 1861 | mISDN_initbchannel(&hw->bch[i], MAX_DATA_MEM, poll >> 1); |
69f52adb KK |
1862 | hw->bch[i].hw = hw; |
1863 | hw->bch[i].ch.send = hfcusb_l2l1B; | |
1864 | hw->bch[i].ch.ctrl = hfc_bctrl; | |
1865 | hw->bch[i].ch.nr = i + 1; | |
1866 | list_add(&hw->bch[i].ch.list, &hw->dch.dev.bchannels); | |
1867 | } | |
1868 | ||
1869 | hw->fifos[HFCUSB_B1_TX].bch = &hw->bch[0]; | |
1870 | hw->fifos[HFCUSB_B1_RX].bch = &hw->bch[0]; | |
1871 | hw->fifos[HFCUSB_B2_TX].bch = &hw->bch[1]; | |
1872 | hw->fifos[HFCUSB_B2_RX].bch = &hw->bch[1]; | |
1873 | hw->fifos[HFCUSB_D_TX].dch = &hw->dch; | |
1874 | hw->fifos[HFCUSB_D_RX].dch = &hw->dch; | |
1875 | hw->fifos[HFCUSB_PCM_RX].ech = &hw->ech; | |
1876 | hw->fifos[HFCUSB_PCM_TX].ech = &hw->ech; | |
1877 | ||
1878 | err = setup_hfcsusb(hw); | |
1879 | if (err) | |
1880 | goto out; | |
1881 | ||
1882 | snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s.%d", DRIVER_NAME, | |
475be4d8 | 1883 | hfcsusb_cnt + 1); |
69f52adb | 1884 | printk(KERN_INFO "%s: registered as '%s'\n", |
475be4d8 | 1885 | DRIVER_NAME, hw->name); |
69f52adb KK |
1886 | |
1887 | err = mISDN_register_device(&hw->dch.dev, parent, hw->name); | |
1888 | if (err) | |
1889 | goto out; | |
1890 | ||
1891 | hfcsusb_cnt++; | |
1892 | write_lock_irqsave(&HFClock, flags); | |
1893 | list_add_tail(&hw->list, &HFClist); | |
1894 | write_unlock_irqrestore(&HFClock, flags); | |
1895 | return 0; | |
1896 | ||
1897 | out: | |
1898 | mISDN_freebchannel(&hw->bch[1]); | |
1899 | mISDN_freebchannel(&hw->bch[0]); | |
1900 | mISDN_freedchannel(&hw->dch); | |
1901 | kfree(hw); | |
1902 | return err; | |
1903 | } | |
1904 | ||
1905 | static int | |
1906 | hfcsusb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
1907 | { | |
1908 | struct hfcsusb *hw; | |
1909 | struct usb_device *dev = interface_to_usbdev(intf); | |
1910 | struct usb_host_interface *iface = intf->cur_altsetting; | |
1911 | struct usb_host_interface *iface_used = NULL; | |
1912 | struct usb_host_endpoint *ep; | |
1913 | struct hfcsusb_vdata *driver_info; | |
1914 | int ifnum = iface->desc.bInterfaceNumber, i, idx, alt_idx, | |
475be4d8 JP |
1915 | probe_alt_setting, vend_idx, cfg_used, *vcf, attr, cfg_found, |
1916 | ep_addr, cmptbl[16], small_match, iso_packet_size, packet_size, | |
1917 | alt_used = 0; | |
69f52adb KK |
1918 | |
1919 | vend_idx = 0xffff; | |
1920 | for (i = 0; hfcsusb_idtab[i].idVendor; i++) { | |
1921 | if ((le16_to_cpu(dev->descriptor.idVendor) | |
475be4d8 | 1922 | == hfcsusb_idtab[i].idVendor) && |
69f52adb | 1923 | (le16_to_cpu(dev->descriptor.idProduct) |
475be4d8 | 1924 | == hfcsusb_idtab[i].idProduct)) { |
69f52adb KK |
1925 | vend_idx = i; |
1926 | continue; | |
1927 | } | |
1928 | } | |
1929 | ||
1930 | printk(KERN_DEBUG | |
475be4d8 JP |
1931 | "%s: interface(%d) actalt(%d) minor(%d) vend_idx(%d)\n", |
1932 | __func__, ifnum, iface->desc.bAlternateSetting, | |
1933 | intf->minor, vend_idx); | |
69f52adb KK |
1934 | |
1935 | if (vend_idx == 0xffff) { | |
1936 | printk(KERN_WARNING | |
475be4d8 JP |
1937 | "%s: no valid vendor found in USB descriptor\n", |
1938 | __func__); | |
69f52adb KK |
1939 | return -EIO; |
1940 | } | |
1941 | /* if vendor and product ID is OK, start probing alternate settings */ | |
1942 | alt_idx = 0; | |
1943 | small_match = -1; | |
1944 | ||
1945 | /* default settings */ | |
1946 | iso_packet_size = 16; | |
1947 | packet_size = 64; | |
1948 | ||
1949 | while (alt_idx < intf->num_altsetting) { | |
1950 | iface = intf->altsetting + alt_idx; | |
1951 | probe_alt_setting = iface->desc.bAlternateSetting; | |
1952 | cfg_used = 0; | |
1953 | ||
1954 | while (validconf[cfg_used][0]) { | |
1955 | cfg_found = 1; | |
1956 | vcf = validconf[cfg_used]; | |
1957 | ep = iface->endpoint; | |
1958 | memcpy(cmptbl, vcf, 16 * sizeof(int)); | |
1959 | ||
1960 | /* check for all endpoints in this alternate setting */ | |
1961 | for (i = 0; i < iface->desc.bNumEndpoints; i++) { | |
1962 | ep_addr = ep->desc.bEndpointAddress; | |
1963 | ||
1964 | /* get endpoint base */ | |
1965 | idx = ((ep_addr & 0x7f) - 1) * 2; | |
1966 | if (ep_addr & 0x80) | |
1967 | idx++; | |
1968 | attr = ep->desc.bmAttributes; | |
1969 | ||
1970 | if (cmptbl[idx] != EP_NOP) { | |
1971 | if (cmptbl[idx] == EP_NUL) | |
1972 | cfg_found = 0; | |
1973 | if (attr == USB_ENDPOINT_XFER_INT | |
475be4d8 | 1974 | && cmptbl[idx] == EP_INT) |
69f52adb KK |
1975 | cmptbl[idx] = EP_NUL; |
1976 | if (attr == USB_ENDPOINT_XFER_BULK | |
475be4d8 | 1977 | && cmptbl[idx] == EP_BLK) |
69f52adb KK |
1978 | cmptbl[idx] = EP_NUL; |
1979 | if (attr == USB_ENDPOINT_XFER_ISOC | |
475be4d8 | 1980 | && cmptbl[idx] == EP_ISO) |
69f52adb KK |
1981 | cmptbl[idx] = EP_NUL; |
1982 | ||
1983 | if (attr == USB_ENDPOINT_XFER_INT && | |
475be4d8 | 1984 | ep->desc.bInterval < vcf[17]) { |
69f52adb KK |
1985 | cfg_found = 0; |
1986 | } | |
1987 | } | |
1988 | ep++; | |
1989 | } | |
1990 | ||
1991 | for (i = 0; i < 16; i++) | |
1992 | if (cmptbl[i] != EP_NOP && cmptbl[i] != EP_NUL) | |
1993 | cfg_found = 0; | |
1994 | ||
1995 | if (cfg_found) { | |
1996 | if (small_match < cfg_used) { | |
1997 | small_match = cfg_used; | |
1998 | alt_used = probe_alt_setting; | |
1999 | iface_used = iface; | |
2000 | } | |
2001 | } | |
2002 | cfg_used++; | |
2003 | } | |
2004 | alt_idx++; | |
2005 | } /* (alt_idx < intf->num_altsetting) */ | |
2006 | ||
2007 | /* not found a valid USB Ta Endpoint config */ | |
2008 | if (small_match == -1) | |
2009 | return -EIO; | |
2010 | ||
2011 | iface = iface_used; | |
2012 | hw = kzalloc(sizeof(struct hfcsusb), GFP_KERNEL); | |
2013 | if (!hw) | |
2014 | return -ENOMEM; /* got no mem */ | |
2015 | snprintf(hw->name, MISDN_MAX_IDLEN - 1, "%s", DRIVER_NAME); | |
2016 | ||
2017 | ep = iface->endpoint; | |
2018 | vcf = validconf[small_match]; | |
2019 | ||
2020 | for (i = 0; i < iface->desc.bNumEndpoints; i++) { | |
2021 | struct usb_fifo *f; | |
2022 | ||
2023 | ep_addr = ep->desc.bEndpointAddress; | |
2024 | /* get endpoint base */ | |
2025 | idx = ((ep_addr & 0x7f) - 1) * 2; | |
2026 | if (ep_addr & 0x80) | |
2027 | idx++; | |
2028 | f = &hw->fifos[idx & 7]; | |
2029 | ||
2030 | /* init Endpoints */ | |
2031 | if (vcf[idx] == EP_NOP || vcf[idx] == EP_NUL) { | |
2032 | ep++; | |
2033 | continue; | |
2034 | } | |
2035 | switch (ep->desc.bmAttributes) { | |
2036 | case USB_ENDPOINT_XFER_INT: | |
2037 | f->pipe = usb_rcvintpipe(dev, | |
475be4d8 | 2038 | ep->desc.bEndpointAddress); |
69f52adb KK |
2039 | f->usb_transfer_mode = USB_INT; |
2040 | packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
2041 | break; | |
2042 | case USB_ENDPOINT_XFER_BULK: | |
2043 | if (ep_addr & 0x80) | |
2044 | f->pipe = usb_rcvbulkpipe(dev, | |
475be4d8 | 2045 | ep->desc.bEndpointAddress); |
69f52adb KK |
2046 | else |
2047 | f->pipe = usb_sndbulkpipe(dev, | |
475be4d8 | 2048 | ep->desc.bEndpointAddress); |
69f52adb KK |
2049 | f->usb_transfer_mode = USB_BULK; |
2050 | packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
2051 | break; | |
2052 | case USB_ENDPOINT_XFER_ISOC: | |
2053 | if (ep_addr & 0x80) | |
2054 | f->pipe = usb_rcvisocpipe(dev, | |
475be4d8 | 2055 | ep->desc.bEndpointAddress); |
69f52adb KK |
2056 | else |
2057 | f->pipe = usb_sndisocpipe(dev, | |
475be4d8 | 2058 | ep->desc.bEndpointAddress); |
69f52adb KK |
2059 | f->usb_transfer_mode = USB_ISOC; |
2060 | iso_packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); | |
2061 | break; | |
2062 | default: | |
2063 | f->pipe = 0; | |
2064 | } | |
2065 | ||
2066 | if (f->pipe) { | |
2067 | f->fifonum = idx & 7; | |
2068 | f->hw = hw; | |
2069 | f->usb_packet_maxlen = | |
475be4d8 | 2070 | le16_to_cpu(ep->desc.wMaxPacketSize); |
69f52adb KK |
2071 | f->intervall = ep->desc.bInterval; |
2072 | } | |
2073 | ep++; | |
2074 | } | |
2075 | hw->dev = dev; /* save device */ | |
2076 | hw->if_used = ifnum; /* save used interface */ | |
2077 | hw->alt_used = alt_used; /* and alternate config */ | |
2078 | hw->ctrl_paksize = dev->descriptor.bMaxPacketSize0; /* control size */ | |
2079 | hw->cfg_used = vcf[16]; /* store used config */ | |
2080 | hw->vend_idx = vend_idx; /* store found vendor */ | |
2081 | hw->packet_size = packet_size; | |
2082 | hw->iso_packet_size = iso_packet_size; | |
2083 | ||
2084 | /* create the control pipes needed for register access */ | |
2085 | hw->ctrl_in_pipe = usb_rcvctrlpipe(hw->dev, 0); | |
2086 | hw->ctrl_out_pipe = usb_sndctrlpipe(hw->dev, 0); | |
2ae4605d KK |
2087 | |
2088 | driver_info = (struct hfcsusb_vdata *) | |
2089 | hfcsusb_idtab[vend_idx].driver_info; | |
2090 | ||
69f52adb | 2091 | hw->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); |
2ae4605d KK |
2092 | if (!hw->ctrl_urb) { |
2093 | pr_warn("%s: No memory for control urb\n", | |
2094 | driver_info->vend_name); | |
2095 | kfree(hw); | |
2096 | return -ENOMEM; | |
2097 | } | |
69f52adb | 2098 | |
2ae4605d KK |
2099 | pr_info("%s: %s: detected \"%s\" (%s, if=%d alt=%d)\n", |
2100 | hw->name, __func__, driver_info->vend_name, | |
2101 | conf_str[small_match], ifnum, alt_used); | |
69f52adb KK |
2102 | |
2103 | if (setup_instance(hw, dev->dev.parent)) | |
2104 | return -EIO; | |
2105 | ||
2106 | hw->intf = intf; | |
2107 | usb_set_intfdata(hw->intf, hw); | |
2108 | return 0; | |
2109 | } | |
2110 | ||
2111 | /* function called when an active device is removed */ | |
2112 | static void | |
2113 | hfcsusb_disconnect(struct usb_interface *intf) | |
2114 | { | |
2115 | struct hfcsusb *hw = usb_get_intfdata(intf); | |
2116 | struct hfcsusb *next; | |
2117 | int cnt = 0; | |
2118 | ||
2119 | printk(KERN_INFO "%s: device disconnected\n", hw->name); | |
2120 | ||
2121 | handle_led(hw, LED_POWER_OFF); | |
2122 | release_hw(hw); | |
2123 | ||
2124 | list_for_each_entry_safe(hw, next, &HFClist, list) | |
2125 | cnt++; | |
2126 | if (!cnt) | |
2127 | hfcsusb_cnt = 0; | |
2128 | ||
2129 | usb_set_intfdata(intf, NULL); | |
2130 | } | |
2131 | ||
2132 | static struct usb_driver hfcsusb_drv = { | |
2133 | .name = DRIVER_NAME, | |
2134 | .id_table = hfcsusb_idtab, | |
2135 | .probe = hfcsusb_probe, | |
2136 | .disconnect = hfcsusb_disconnect, | |
e1f12eb6 | 2137 | .disable_hub_initiated_lpm = 1, |
69f52adb KK |
2138 | }; |
2139 | ||
fe748483 | 2140 | module_usb_driver(hfcsusb_drv); |