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707b2ce6 KK |
1 | /* |
2 | * w6692.c mISDN driver for Winbond w6692 based cards | |
3 | * | |
4 | * Author Karsten Keil <kkeil@suse.de> | |
5 | * based on the w6692 I4L driver from Petr Novak <petr.novak@i.cz> | |
6 | * | |
7 | * Copyright 2009 by Karsten Keil <keil@isdn4linux.de> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | * | |
22 | */ | |
23 | ||
a6b7a407 | 24 | #include <linux/interrupt.h> |
707b2ce6 KK |
25 | #include <linux/module.h> |
26 | #include <linux/pci.h> | |
27 | #include <linux/delay.h> | |
28 | #include <linux/mISDNhw.h> | |
5a0e3ad6 | 29 | #include <linux/slab.h> |
707b2ce6 KK |
30 | #include "w6692.h" |
31 | ||
32 | #define W6692_REV "2.0" | |
33 | ||
34 | #define DBUSY_TIMER_VALUE 80 | |
35 | ||
36 | enum { | |
37 | W6692_ASUS, | |
38 | W6692_WINBOND, | |
39 | W6692_USR | |
40 | }; | |
41 | ||
42 | /* private data in the PCI devices list */ | |
43 | struct w6692map { | |
44 | u_int subtype; | |
45 | char *name; | |
46 | }; | |
47 | ||
48 | static const struct w6692map w6692_map[] = | |
49 | { | |
50 | {W6692_ASUS, "Dynalink/AsusCom IS64PH"}, | |
51 | {W6692_WINBOND, "Winbond W6692"}, | |
52 | {W6692_USR, "USR W6692"} | |
53 | }; | |
54 | ||
55 | #ifndef PCI_VENDOR_ID_USR | |
56 | #define PCI_VENDOR_ID_USR 0x16ec | |
57 | #define PCI_DEVICE_ID_USR_6692 0x3409 | |
58 | #endif | |
59 | ||
60 | struct w6692_ch { | |
61 | struct bchannel bch; | |
62 | u32 addr; | |
63 | struct timer_list timer; | |
64 | u8 b_mode; | |
65 | }; | |
66 | ||
67 | struct w6692_hw { | |
68 | struct list_head list; | |
69 | struct pci_dev *pdev; | |
70 | char name[MISDN_MAX_IDLEN]; | |
71 | u32 irq; | |
72 | u32 irqcnt; | |
73 | u32 addr; | |
74 | u32 fmask; /* feature mask - bit set per card nr */ | |
75 | int subtype; | |
76 | spinlock_t lock; /* hw lock */ | |
77 | u8 imask; | |
78 | u8 pctl; | |
79 | u8 xaddr; | |
80 | u8 xdata; | |
81 | u8 state; | |
82 | struct w6692_ch bc[2]; | |
83 | struct dchannel dch; | |
84 | char log[64]; | |
85 | }; | |
86 | ||
87 | static LIST_HEAD(Cards); | |
88 | static DEFINE_RWLOCK(card_lock); /* protect Cards */ | |
89 | ||
90 | static int w6692_cnt; | |
91 | static int debug; | |
92 | static u32 led; | |
93 | static u32 pots; | |
94 | ||
95 | static void | |
96 | _set_debug(struct w6692_hw *card) | |
97 | { | |
98 | card->dch.debug = debug; | |
99 | card->bc[0].bch.debug = debug; | |
100 | card->bc[1].bch.debug = debug; | |
101 | } | |
102 | ||
103 | static int | |
104 | set_debug(const char *val, struct kernel_param *kp) | |
105 | { | |
106 | int ret; | |
107 | struct w6692_hw *card; | |
108 | ||
109 | ret = param_set_uint(val, kp); | |
110 | if (!ret) { | |
111 | read_lock(&card_lock); | |
112 | list_for_each_entry(card, &Cards, list) | |
113 | _set_debug(card); | |
114 | read_unlock(&card_lock); | |
115 | } | |
116 | return ret; | |
117 | } | |
118 | ||
119 | MODULE_AUTHOR("Karsten Keil"); | |
120 | MODULE_LICENSE("GPL v2"); | |
121 | MODULE_VERSION(W6692_REV); | |
122 | module_param_call(debug, set_debug, param_get_uint, &debug, S_IRUGO | S_IWUSR); | |
123 | MODULE_PARM_DESC(debug, "W6692 debug mask"); | |
124 | module_param(led, uint, S_IRUGO | S_IWUSR); | |
125 | MODULE_PARM_DESC(led, "W6692 LED support bitmask (one bit per card)"); | |
126 | module_param(pots, uint, S_IRUGO | S_IWUSR); | |
127 | MODULE_PARM_DESC(pots, "W6692 POTS support bitmask (one bit per card)"); | |
128 | ||
129 | static inline u8 | |
130 | ReadW6692(struct w6692_hw *card, u8 offset) | |
131 | { | |
132 | return inb(card->addr + offset); | |
133 | } | |
134 | ||
135 | static inline void | |
136 | WriteW6692(struct w6692_hw *card, u8 offset, u8 value) | |
137 | { | |
138 | outb(value, card->addr + offset); | |
139 | } | |
140 | ||
141 | static inline u8 | |
142 | ReadW6692B(struct w6692_ch *bc, u8 offset) | |
143 | { | |
144 | return inb(bc->addr + offset); | |
145 | } | |
146 | ||
147 | static inline void | |
148 | WriteW6692B(struct w6692_ch *bc, u8 offset, u8 value) | |
149 | { | |
150 | outb(value, bc->addr + offset); | |
151 | } | |
152 | ||
153 | static void | |
154 | enable_hwirq(struct w6692_hw *card) | |
155 | { | |
156 | WriteW6692(card, W_IMASK, card->imask); | |
157 | } | |
158 | ||
159 | static void | |
160 | disable_hwirq(struct w6692_hw *card) | |
161 | { | |
162 | WriteW6692(card, W_IMASK, 0xff); | |
163 | } | |
164 | ||
165 | static const char *W6692Ver[] = {"V00", "V01", "V10", "V11"}; | |
166 | ||
167 | static void | |
168 | W6692Version(struct w6692_hw *card) | |
169 | { | |
170 | int val; | |
171 | ||
172 | val = ReadW6692(card, W_D_RBCH); | |
173 | pr_notice("%s: Winbond W6692 version: %s\n", card->name, | |
174 | W6692Ver[(val >> 6) & 3]); | |
175 | } | |
176 | ||
177 | static void | |
178 | w6692_led_handler(struct w6692_hw *card, int on) | |
179 | { | |
180 | if ((!(card->fmask & led)) || card->subtype == W6692_USR) | |
181 | return; | |
182 | if (on) { | |
183 | card->xdata &= 0xfb; /* LED ON */ | |
184 | WriteW6692(card, W_XDATA, card->xdata); | |
185 | } else { | |
186 | card->xdata |= 0x04; /* LED OFF */ | |
187 | WriteW6692(card, W_XDATA, card->xdata); | |
188 | } | |
189 | } | |
190 | ||
191 | static void | |
192 | ph_command(struct w6692_hw *card, u8 cmd) | |
193 | { | |
194 | pr_debug("%s: ph_command %x\n", card->name, cmd); | |
195 | WriteW6692(card, W_CIX, cmd); | |
196 | } | |
197 | ||
198 | static void | |
199 | W6692_new_ph(struct w6692_hw *card) | |
200 | { | |
201 | if (card->state == W_L1CMD_RST) | |
202 | ph_command(card, W_L1CMD_DRC); | |
203 | schedule_event(&card->dch, FLG_PHCHANGE); | |
204 | } | |
205 | ||
206 | static void | |
207 | W6692_ph_bh(struct dchannel *dch) | |
208 | { | |
209 | struct w6692_hw *card = dch->hw; | |
210 | ||
211 | switch (card->state) { | |
212 | case W_L1CMD_RST: | |
213 | dch->state = 0; | |
214 | l1_event(dch->l1, HW_RESET_IND); | |
215 | break; | |
216 | case W_L1IND_CD: | |
217 | dch->state = 3; | |
218 | l1_event(dch->l1, HW_DEACT_CNF); | |
219 | break; | |
220 | case W_L1IND_DRD: | |
221 | dch->state = 3; | |
222 | l1_event(dch->l1, HW_DEACT_IND); | |
223 | break; | |
224 | case W_L1IND_CE: | |
225 | dch->state = 4; | |
226 | l1_event(dch->l1, HW_POWERUP_IND); | |
227 | break; | |
228 | case W_L1IND_LD: | |
229 | if (dch->state <= 5) { | |
230 | dch->state = 5; | |
231 | l1_event(dch->l1, ANYSIGNAL); | |
232 | } else { | |
233 | dch->state = 8; | |
234 | l1_event(dch->l1, LOSTFRAMING); | |
235 | } | |
236 | break; | |
237 | case W_L1IND_ARD: | |
238 | dch->state = 6; | |
239 | l1_event(dch->l1, INFO2); | |
240 | break; | |
241 | case W_L1IND_AI8: | |
242 | dch->state = 7; | |
243 | l1_event(dch->l1, INFO4_P8); | |
244 | break; | |
245 | case W_L1IND_AI10: | |
246 | dch->state = 7; | |
247 | l1_event(dch->l1, INFO4_P10); | |
248 | break; | |
249 | default: | |
250 | pr_debug("%s: TE unknown state %02x dch state %02x\n", | |
251 | card->name, card->state, dch->state); | |
252 | break; | |
253 | } | |
254 | pr_debug("%s: TE newstate %02x\n", card->name, dch->state); | |
255 | } | |
256 | ||
257 | static void | |
258 | W6692_empty_Dfifo(struct w6692_hw *card, int count) | |
259 | { | |
260 | struct dchannel *dch = &card->dch; | |
261 | u8 *ptr; | |
262 | ||
263 | pr_debug("%s: empty_Dfifo %d\n", card->name, count); | |
264 | if (!dch->rx_skb) { | |
265 | dch->rx_skb = mI_alloc_skb(card->dch.maxlen, GFP_ATOMIC); | |
266 | if (!dch->rx_skb) { | |
267 | pr_info("%s: D receive out of memory\n", card->name); | |
268 | WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK); | |
269 | return; | |
270 | } | |
271 | } | |
272 | if ((dch->rx_skb->len + count) >= dch->maxlen) { | |
273 | pr_debug("%s: empty_Dfifo overrun %d\n", card->name, | |
274 | dch->rx_skb->len + count); | |
275 | WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK); | |
276 | return; | |
277 | } | |
278 | ptr = skb_put(dch->rx_skb, count); | |
279 | insb(card->addr + W_D_RFIFO, ptr, count); | |
280 | WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK); | |
281 | if (debug & DEBUG_HW_DFIFO) { | |
282 | snprintf(card->log, 63, "D-recv %s %d ", | |
283 | card->name, count); | |
284 | print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); | |
285 | } | |
286 | } | |
287 | ||
288 | static void | |
289 | W6692_fill_Dfifo(struct w6692_hw *card) | |
290 | { | |
291 | struct dchannel *dch = &card->dch; | |
292 | int count; | |
293 | u8 *ptr; | |
294 | u8 cmd = W_D_CMDR_XMS; | |
295 | ||
296 | pr_debug("%s: fill_Dfifo\n", card->name); | |
297 | if (!dch->tx_skb) | |
298 | return; | |
299 | count = dch->tx_skb->len - dch->tx_idx; | |
300 | if (count <= 0) | |
301 | return; | |
302 | if (count > W_D_FIFO_THRESH) | |
303 | count = W_D_FIFO_THRESH; | |
304 | else | |
305 | cmd |= W_D_CMDR_XME; | |
306 | ptr = dch->tx_skb->data + dch->tx_idx; | |
307 | dch->tx_idx += count; | |
308 | outsb(card->addr + W_D_XFIFO, ptr, count); | |
309 | WriteW6692(card, W_D_CMDR, cmd); | |
310 | if (test_and_set_bit(FLG_BUSY_TIMER, &dch->Flags)) { | |
311 | pr_debug("%s: fill_Dfifo dbusytimer running\n", card->name); | |
312 | del_timer(&dch->timer); | |
313 | } | |
314 | init_timer(&dch->timer); | |
315 | dch->timer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ)/1000); | |
316 | add_timer(&dch->timer); | |
317 | if (debug & DEBUG_HW_DFIFO) { | |
318 | snprintf(card->log, 63, "D-send %s %d ", | |
319 | card->name, count); | |
320 | print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); | |
321 | } | |
322 | } | |
323 | ||
324 | static void | |
325 | d_retransmit(struct w6692_hw *card) | |
326 | { | |
327 | struct dchannel *dch = &card->dch; | |
328 | ||
329 | if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) | |
330 | del_timer(&dch->timer); | |
331 | #ifdef FIXME | |
332 | if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags)) | |
333 | dchannel_sched_event(dch, D_CLEARBUSY); | |
334 | #endif | |
335 | if (test_bit(FLG_TX_BUSY, &dch->Flags)) { | |
336 | /* Restart frame */ | |
337 | dch->tx_idx = 0; | |
338 | W6692_fill_Dfifo(card); | |
339 | } else if (dch->tx_skb) { /* should not happen */ | |
340 | pr_info("%s: %s without TX_BUSY\n", card->name, __func__); | |
341 | test_and_set_bit(FLG_TX_BUSY, &dch->Flags); | |
342 | dch->tx_idx = 0; | |
343 | W6692_fill_Dfifo(card); | |
344 | } else { | |
345 | pr_info("%s: XDU no TX_BUSY\n", card->name); | |
346 | if (get_next_dframe(dch)) | |
347 | W6692_fill_Dfifo(card); | |
348 | } | |
349 | } | |
350 | ||
351 | static void | |
352 | handle_rxD(struct w6692_hw *card) { | |
353 | u8 stat; | |
354 | int count; | |
355 | ||
356 | stat = ReadW6692(card, W_D_RSTA); | |
357 | if (stat & (W_D_RSTA_RDOV | W_D_RSTA_CRCE | W_D_RSTA_RMB)) { | |
358 | if (stat & W_D_RSTA_RDOV) { | |
359 | pr_debug("%s: D-channel RDOV\n", card->name); | |
360 | #ifdef ERROR_STATISTIC | |
361 | card->dch.err_rx++; | |
362 | #endif | |
363 | } | |
364 | if (stat & W_D_RSTA_CRCE) { | |
365 | pr_debug("%s: D-channel CRC error\n", card->name); | |
366 | #ifdef ERROR_STATISTIC | |
367 | card->dch.err_crc++; | |
368 | #endif | |
369 | } | |
370 | if (stat & W_D_RSTA_RMB) { | |
371 | pr_debug("%s: D-channel ABORT\n", card->name); | |
372 | #ifdef ERROR_STATISTIC | |
373 | card->dch.err_rx++; | |
374 | #endif | |
375 | } | |
376 | if (card->dch.rx_skb) | |
377 | dev_kfree_skb(card->dch.rx_skb); | |
378 | card->dch.rx_skb = NULL; | |
379 | WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST); | |
380 | } else { | |
381 | count = ReadW6692(card, W_D_RBCL) & (W_D_FIFO_THRESH - 1); | |
382 | if (count == 0) | |
383 | count = W_D_FIFO_THRESH; | |
384 | W6692_empty_Dfifo(card, count); | |
385 | recv_Dchannel(&card->dch); | |
386 | } | |
387 | } | |
388 | ||
389 | static void | |
390 | handle_txD(struct w6692_hw *card) { | |
391 | if (test_and_clear_bit(FLG_BUSY_TIMER, &card->dch.Flags)) | |
392 | del_timer(&card->dch.timer); | |
393 | if (card->dch.tx_skb && card->dch.tx_idx < card->dch.tx_skb->len) { | |
394 | W6692_fill_Dfifo(card); | |
395 | } else { | |
396 | if (card->dch.tx_skb) | |
397 | dev_kfree_skb(card->dch.tx_skb); | |
398 | if (get_next_dframe(&card->dch)) | |
399 | W6692_fill_Dfifo(card); | |
400 | } | |
401 | } | |
402 | ||
403 | static void | |
404 | handle_statusD(struct w6692_hw *card) | |
405 | { | |
406 | struct dchannel *dch = &card->dch; | |
407 | u8 exval, v1, cir; | |
408 | ||
409 | exval = ReadW6692(card, W_D_EXIR); | |
410 | ||
411 | pr_debug("%s: D_EXIR %02x\n", card->name, exval); | |
412 | if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) { | |
413 | /* Transmit underrun/collision */ | |
414 | pr_debug("%s: D-channel underrun/collision\n", card->name); | |
415 | #ifdef ERROR_STATISTIC | |
416 | dch->err_tx++; | |
417 | #endif | |
418 | d_retransmit(card); | |
419 | } | |
420 | if (exval & W_D_EXI_RDOV) { /* RDOV */ | |
421 | pr_debug("%s: D-channel RDOV\n", card->name); | |
422 | WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST); | |
423 | } | |
424 | if (exval & W_D_EXI_TIN2) /* TIN2 - never */ | |
425 | pr_debug("%s: spurious TIN2 interrupt\n", card->name); | |
426 | if (exval & W_D_EXI_MOC) { /* MOC - not supported */ | |
427 | v1 = ReadW6692(card, W_MOSR); | |
428 | pr_debug("%s: spurious MOC interrupt MOSR %02x\n", | |
429 | card->name, v1); | |
430 | } | |
431 | if (exval & W_D_EXI_ISC) { /* ISC - Level1 change */ | |
432 | cir = ReadW6692(card, W_CIR); | |
433 | pr_debug("%s: ISC CIR %02X\n", card->name, cir); | |
434 | if (cir & W_CIR_ICC) { | |
435 | v1 = cir & W_CIR_COD_MASK; | |
436 | pr_debug("%s: ph_state_change %x -> %x\n", card->name, | |
437 | dch->state, v1); | |
438 | card->state = v1; | |
439 | if (card->fmask & led) { | |
440 | switch (v1) { | |
441 | case W_L1IND_AI8: | |
442 | case W_L1IND_AI10: | |
443 | w6692_led_handler(card, 1); | |
444 | break; | |
445 | default: | |
446 | w6692_led_handler(card, 0); | |
447 | break; | |
448 | } | |
449 | } | |
450 | W6692_new_ph(card); | |
451 | } | |
452 | if (cir & W_CIR_SCC) { | |
453 | v1 = ReadW6692(card, W_SQR); | |
454 | pr_debug("%s: SCC SQR %02X\n", card->name, v1); | |
455 | } | |
456 | } | |
457 | if (exval & W_D_EXI_WEXP) | |
458 | pr_debug("%s: spurious WEXP interrupt!\n", card->name); | |
459 | if (exval & W_D_EXI_TEXP) | |
460 | pr_debug("%s: spurious TEXP interrupt!\n", card->name); | |
461 | } | |
462 | ||
463 | static void | |
464 | W6692_empty_Bfifo(struct w6692_ch *wch, int count) | |
465 | { | |
466 | struct w6692_hw *card = wch->bch.hw; | |
467 | u8 *ptr; | |
468 | ||
469 | pr_debug("%s: empty_Bfifo %d\n", card->name, count); | |
470 | if (unlikely(wch->bch.state == ISDN_P_NONE)) { | |
471 | pr_debug("%s: empty_Bfifo ISDN_P_NONE\n", card->name); | |
472 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); | |
473 | if (wch->bch.rx_skb) | |
474 | skb_trim(wch->bch.rx_skb, 0); | |
475 | return; | |
476 | } | |
477 | if (!wch->bch.rx_skb) { | |
478 | wch->bch.rx_skb = mI_alloc_skb(wch->bch.maxlen, GFP_ATOMIC); | |
479 | if (unlikely(!wch->bch.rx_skb)) { | |
480 | pr_info("%s: B receive out of memory\n", card->name); | |
481 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | | |
482 | W_B_CMDR_RACT); | |
483 | return; | |
484 | } | |
485 | } | |
486 | if (wch->bch.rx_skb->len + count > wch->bch.maxlen) { | |
487 | pr_debug("%s: empty_Bfifo incoming packet too large\n", | |
488 | card->name); | |
489 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); | |
490 | skb_trim(wch->bch.rx_skb, 0); | |
491 | return; | |
492 | } | |
493 | ptr = skb_put(wch->bch.rx_skb, count); | |
494 | insb(wch->addr + W_B_RFIFO, ptr, count); | |
495 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT); | |
496 | if (debug & DEBUG_HW_DFIFO) { | |
497 | snprintf(card->log, 63, "B%1d-recv %s %d ", | |
498 | wch->bch.nr, card->name, count); | |
499 | print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); | |
500 | } | |
501 | } | |
502 | ||
503 | static void | |
504 | W6692_fill_Bfifo(struct w6692_ch *wch) | |
505 | { | |
506 | struct w6692_hw *card = wch->bch.hw; | |
507 | int count; | |
508 | u8 *ptr, cmd = W_B_CMDR_RACT | W_B_CMDR_XMS; | |
509 | ||
510 | pr_debug("%s: fill Bfifo\n", card->name); | |
511 | if (!wch->bch.tx_skb) | |
512 | return; | |
513 | count = wch->bch.tx_skb->len - wch->bch.tx_idx; | |
514 | if (count <= 0) | |
515 | return; | |
516 | ptr = wch->bch.tx_skb->data + wch->bch.tx_idx; | |
517 | if (count > W_B_FIFO_THRESH) | |
518 | count = W_B_FIFO_THRESH; | |
519 | else if (test_bit(FLG_HDLC, &wch->bch.Flags)) | |
520 | cmd |= W_B_CMDR_XME; | |
521 | ||
522 | pr_debug("%s: fill Bfifo%d/%d\n", card->name, | |
523 | count, wch->bch.tx_idx); | |
524 | wch->bch.tx_idx += count; | |
525 | outsb(wch->addr + W_B_XFIFO, ptr, count); | |
526 | WriteW6692B(wch, W_B_CMDR, cmd); | |
527 | if (debug & DEBUG_HW_DFIFO) { | |
528 | snprintf(card->log, 63, "B%1d-send %s %d ", | |
529 | wch->bch.nr, card->name, count); | |
530 | print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count); | |
531 | } | |
532 | } | |
533 | ||
3e598177 | 534 | #if 0 |
707b2ce6 KK |
535 | static int |
536 | setvolume(struct w6692_ch *wch, int mic, struct sk_buff *skb) | |
537 | { | |
538 | struct w6692_hw *card = wch->bch.hw; | |
539 | u16 *vol = (u16 *)skb->data; | |
540 | u8 val; | |
541 | ||
542 | if ((!(card->fmask & pots)) || | |
543 | !test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) | |
544 | return -ENODEV; | |
545 | if (skb->len < 2) | |
546 | return -EINVAL; | |
547 | if (*vol > 7) | |
548 | return -EINVAL; | |
549 | val = *vol & 7; | |
550 | val = 7 - val; | |
551 | if (mic) { | |
552 | val <<= 3; | |
553 | card->xaddr &= 0xc7; | |
554 | } else { | |
555 | card->xaddr &= 0xf8; | |
556 | } | |
557 | card->xaddr |= val; | |
558 | WriteW6692(card, W_XADDR, card->xaddr); | |
559 | return 0; | |
560 | } | |
561 | ||
562 | static int | |
563 | enable_pots(struct w6692_ch *wch) | |
564 | { | |
565 | struct w6692_hw *card = wch->bch.hw; | |
566 | ||
567 | if ((!(card->fmask & pots)) || | |
568 | !test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) | |
569 | return -ENODEV; | |
570 | wch->b_mode |= W_B_MODE_EPCM | W_B_MODE_BSW0; | |
571 | WriteW6692B(wch, W_B_MODE, wch->b_mode); | |
572 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); | |
573 | card->pctl |= ((wch->bch.nr & 2) ? W_PCTL_PCX : 0); | |
574 | WriteW6692(card, W_PCTL, card->pctl); | |
575 | return 0; | |
576 | } | |
3e598177 | 577 | #endif |
707b2ce6 KK |
578 | |
579 | static int | |
580 | disable_pots(struct w6692_ch *wch) | |
581 | { | |
582 | struct w6692_hw *card = wch->bch.hw; | |
583 | ||
584 | if (!(card->fmask & pots)) | |
585 | return -ENODEV; | |
586 | wch->b_mode &= ~(W_B_MODE_EPCM | W_B_MODE_BSW0); | |
587 | WriteW6692B(wch, W_B_MODE, wch->b_mode); | |
588 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT | | |
589 | W_B_CMDR_XRST); | |
590 | return 0; | |
591 | } | |
592 | ||
593 | static int | |
594 | w6692_mode(struct w6692_ch *wch, u32 pr) | |
595 | { | |
596 | struct w6692_hw *card; | |
597 | ||
598 | card = wch->bch.hw; | |
599 | pr_debug("%s: B%d protocol %x-->%x\n", card->name, | |
600 | wch->bch.nr, wch->bch.state, pr); | |
601 | switch (pr) { | |
602 | case ISDN_P_NONE: | |
603 | if ((card->fmask & pots) && (wch->b_mode & W_B_MODE_EPCM)) | |
604 | disable_pots(wch); | |
605 | wch->b_mode = 0; | |
606 | mISDN_clear_bchannel(&wch->bch); | |
607 | WriteW6692B(wch, W_B_MODE, wch->b_mode); | |
608 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); | |
609 | test_and_clear_bit(FLG_HDLC, &wch->bch.Flags); | |
610 | test_and_clear_bit(FLG_TRANSPARENT, &wch->bch.Flags); | |
611 | break; | |
612 | case ISDN_P_B_RAW: | |
613 | wch->b_mode = W_B_MODE_MMS; | |
614 | WriteW6692B(wch, W_B_MODE, wch->b_mode); | |
615 | WriteW6692B(wch, W_B_EXIM, 0); | |
616 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT | | |
617 | W_B_CMDR_XRST); | |
618 | test_and_set_bit(FLG_TRANSPARENT, &wch->bch.Flags); | |
619 | break; | |
620 | case ISDN_P_B_HDLC: | |
621 | wch->b_mode = W_B_MODE_ITF; | |
622 | WriteW6692B(wch, W_B_MODE, wch->b_mode); | |
623 | WriteW6692B(wch, W_B_ADM1, 0xff); | |
624 | WriteW6692B(wch, W_B_ADM2, 0xff); | |
625 | WriteW6692B(wch, W_B_EXIM, 0); | |
626 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT | | |
627 | W_B_CMDR_XRST); | |
628 | test_and_set_bit(FLG_HDLC, &wch->bch.Flags); | |
629 | break; | |
630 | default: | |
631 | pr_info("%s: protocol %x not known\n", card->name, pr); | |
632 | return -ENOPROTOOPT; | |
633 | } | |
634 | wch->bch.state = pr; | |
635 | return 0; | |
636 | } | |
637 | ||
638 | static void | |
639 | send_next(struct w6692_ch *wch) | |
640 | { | |
641 | if (wch->bch.tx_skb && wch->bch.tx_idx < wch->bch.tx_skb->len) | |
642 | W6692_fill_Bfifo(wch); | |
643 | else { | |
644 | if (wch->bch.tx_skb) { | |
645 | /* send confirm, on trans, free on hdlc. */ | |
646 | if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) | |
647 | confirm_Bsend(&wch->bch); | |
648 | dev_kfree_skb(wch->bch.tx_skb); | |
649 | } | |
650 | if (get_next_bframe(&wch->bch)) | |
651 | W6692_fill_Bfifo(wch); | |
652 | } | |
653 | } | |
654 | ||
655 | static void | |
656 | W6692B_interrupt(struct w6692_hw *card, int ch) | |
657 | { | |
658 | struct w6692_ch *wch = &card->bc[ch]; | |
659 | int count; | |
660 | u8 stat, star = 0; | |
661 | ||
662 | stat = ReadW6692B(wch, W_B_EXIR); | |
663 | pr_debug("%s: B%d EXIR %02x\n", card->name, wch->bch.nr, stat); | |
664 | if (stat & W_B_EXI_RME) { | |
665 | star = ReadW6692B(wch, W_B_STAR); | |
666 | if (star & (W_B_STAR_RDOV | W_B_STAR_CRCE | W_B_STAR_RMB)) { | |
667 | if ((star & W_B_STAR_RDOV) && | |
668 | test_bit(FLG_ACTIVE, &wch->bch.Flags)) { | |
669 | pr_debug("%s: B%d RDOV proto=%x\n", card->name, | |
670 | wch->bch.nr, wch->bch.state); | |
671 | #ifdef ERROR_STATISTIC | |
672 | wch->bch.err_rdo++; | |
673 | #endif | |
674 | } | |
675 | if (test_bit(FLG_HDLC, &wch->bch.Flags)) { | |
676 | if (star & W_B_STAR_CRCE) { | |
677 | pr_debug("%s: B%d CRC error\n", | |
678 | card->name, wch->bch.nr); | |
679 | #ifdef ERROR_STATISTIC | |
680 | wch->bch.err_crc++; | |
681 | #endif | |
682 | } | |
683 | if (star & W_B_STAR_RMB) { | |
684 | pr_debug("%s: B%d message abort\n", | |
685 | card->name, wch->bch.nr); | |
686 | #ifdef ERROR_STATISTIC | |
687 | wch->bch.err_inv++; | |
688 | #endif | |
689 | } | |
690 | } | |
691 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | | |
692 | W_B_CMDR_RRST | W_B_CMDR_RACT); | |
693 | if (wch->bch.rx_skb) | |
694 | skb_trim(wch->bch.rx_skb, 0); | |
695 | } else { | |
696 | count = ReadW6692B(wch, W_B_RBCL) & | |
697 | (W_B_FIFO_THRESH - 1); | |
698 | if (count == 0) | |
699 | count = W_B_FIFO_THRESH; | |
700 | W6692_empty_Bfifo(wch, count); | |
701 | recv_Bchannel(&wch->bch, 0); | |
702 | } | |
703 | } | |
704 | if (stat & W_B_EXI_RMR) { | |
705 | if (!(stat & W_B_EXI_RME)) | |
706 | star = ReadW6692B(wch, W_B_STAR); | |
707 | if (star & W_B_STAR_RDOV) { | |
708 | pr_debug("%s: B%d RDOV proto=%x\n", card->name, | |
709 | wch->bch.nr, wch->bch.state); | |
710 | #ifdef ERROR_STATISTIC | |
711 | wch->bch.err_rdo++; | |
712 | #endif | |
713 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | | |
714 | W_B_CMDR_RRST | W_B_CMDR_RACT); | |
715 | } else { | |
716 | W6692_empty_Bfifo(wch, W_B_FIFO_THRESH); | |
717 | if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags) && | |
718 | wch->bch.rx_skb && (wch->bch.rx_skb->len > 0)) | |
719 | recv_Bchannel(&wch->bch, 0); | |
720 | } | |
721 | } | |
722 | if (stat & W_B_EXI_RDOV) { | |
723 | /* only if it is not handled yet */ | |
724 | if (!(star & W_B_STAR_RDOV)) { | |
725 | pr_debug("%s: B%d RDOV IRQ proto=%x\n", card->name, | |
726 | wch->bch.nr, wch->bch.state); | |
727 | #ifdef ERROR_STATISTIC | |
728 | wch->bch.err_rdo++; | |
729 | #endif | |
730 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | | |
731 | W_B_CMDR_RRST | W_B_CMDR_RACT); | |
732 | } | |
733 | } | |
734 | if (stat & W_B_EXI_XFR) { | |
735 | if (!(stat & (W_B_EXI_RME | W_B_EXI_RMR))) { | |
736 | star = ReadW6692B(wch, W_B_STAR); | |
737 | pr_debug("%s: B%d star %02x\n", card->name, | |
738 | wch->bch.nr, star); | |
739 | } | |
740 | if (star & W_B_STAR_XDOW) { | |
741 | pr_debug("%s: B%d XDOW proto=%x\n", card->name, | |
742 | wch->bch.nr, wch->bch.state); | |
743 | #ifdef ERROR_STATISTIC | |
744 | wch->bch.err_xdu++; | |
745 | #endif | |
746 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST | | |
747 | W_B_CMDR_RACT); | |
748 | /* resend */ | |
749 | if (wch->bch.tx_skb) { | |
750 | if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) | |
751 | wch->bch.tx_idx = 0; | |
752 | } | |
753 | } | |
754 | send_next(wch); | |
755 | if (stat & W_B_EXI_XDUN) | |
756 | return; /* handle XDOW only once */ | |
757 | } | |
758 | if (stat & W_B_EXI_XDUN) { | |
759 | pr_debug("%s: B%d XDUN proto=%x\n", card->name, | |
760 | wch->bch.nr, wch->bch.state); | |
761 | #ifdef ERROR_STATISTIC | |
762 | wch->bch.err_xdu++; | |
763 | #endif | |
764 | WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT); | |
765 | /* resend */ | |
766 | if (wch->bch.tx_skb) { | |
767 | if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags)) | |
768 | wch->bch.tx_idx = 0; | |
769 | } | |
770 | send_next(wch); | |
771 | } | |
772 | } | |
773 | ||
774 | static irqreturn_t | |
775 | w6692_irq(int intno, void *dev_id) | |
776 | { | |
777 | struct w6692_hw *card = dev_id; | |
778 | u8 ista; | |
779 | ||
780 | spin_lock(&card->lock); | |
781 | ista = ReadW6692(card, W_ISTA); | |
782 | if ((ista | card->imask) == card->imask) { | |
783 | /* possible a shared IRQ reqest */ | |
784 | spin_unlock(&card->lock); | |
785 | return IRQ_NONE; | |
786 | } | |
787 | card->irqcnt++; | |
788 | pr_debug("%s: ista %02x\n", card->name, ista); | |
789 | ista &= ~card->imask; | |
790 | if (ista & W_INT_B1_EXI) | |
791 | W6692B_interrupt(card, 0); | |
792 | if (ista & W_INT_B2_EXI) | |
793 | W6692B_interrupt(card, 1); | |
794 | if (ista & W_INT_D_RME) | |
795 | handle_rxD(card); | |
796 | if (ista & W_INT_D_RMR) | |
797 | W6692_empty_Dfifo(card, W_D_FIFO_THRESH); | |
798 | if (ista & W_INT_D_XFR) | |
799 | handle_txD(card); | |
800 | if (ista & W_INT_D_EXI) | |
801 | handle_statusD(card); | |
802 | if (ista & (W_INT_XINT0 | W_INT_XINT1)) /* XINT0/1 - never */ | |
803 | pr_debug("%s: W6692 spurious XINT!\n", card->name); | |
804 | /* End IRQ Handler */ | |
805 | spin_unlock(&card->lock); | |
806 | return IRQ_HANDLED; | |
807 | } | |
808 | ||
809 | static void | |
810 | dbusy_timer_handler(struct dchannel *dch) | |
811 | { | |
812 | struct w6692_hw *card = dch->hw; | |
813 | int rbch, star; | |
814 | u_long flags; | |
815 | ||
816 | if (test_bit(FLG_BUSY_TIMER, &dch->Flags)) { | |
817 | spin_lock_irqsave(&card->lock, flags); | |
818 | rbch = ReadW6692(card, W_D_RBCH); | |
819 | star = ReadW6692(card, W_D_STAR); | |
820 | pr_debug("%s: D-Channel Busy RBCH %02x STAR %02x\n", | |
821 | card->name, rbch, star); | |
822 | if (star & W_D_STAR_XBZ) /* D-Channel Busy */ | |
823 | test_and_set_bit(FLG_L1_BUSY, &dch->Flags); | |
824 | else { | |
825 | /* discard frame; reset transceiver */ | |
826 | test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags); | |
827 | if (dch->tx_idx) | |
828 | dch->tx_idx = 0; | |
829 | else | |
830 | pr_info("%s: W6692 D-Channel Busy no tx_idx\n", | |
831 | card->name); | |
832 | /* Transmitter reset */ | |
833 | WriteW6692(card, W_D_CMDR, W_D_CMDR_XRST); | |
834 | } | |
835 | spin_unlock_irqrestore(&card->lock, flags); | |
836 | } | |
837 | } | |
838 | ||
839 | void initW6692(struct w6692_hw *card) | |
840 | { | |
841 | u8 val; | |
842 | ||
843 | card->dch.timer.function = (void *)dbusy_timer_handler; | |
844 | card->dch.timer.data = (u_long)&card->dch; | |
845 | init_timer(&card->dch.timer); | |
846 | w6692_mode(&card->bc[0], ISDN_P_NONE); | |
847 | w6692_mode(&card->bc[1], ISDN_P_NONE); | |
848 | WriteW6692(card, W_D_CTL, 0x00); | |
849 | disable_hwirq(card); | |
850 | WriteW6692(card, W_D_SAM, 0xff); | |
851 | WriteW6692(card, W_D_TAM, 0xff); | |
852 | WriteW6692(card, W_D_MODE, W_D_MODE_RACT); | |
853 | card->state = W_L1CMD_RST; | |
854 | ph_command(card, W_L1CMD_RST); | |
855 | ph_command(card, W_L1CMD_ECK); | |
856 | /* enable all IRQ but extern */ | |
857 | card->imask = 0x18; | |
858 | WriteW6692(card, W_D_EXIM, 0x00); | |
859 | WriteW6692B(&card->bc[0], W_B_EXIM, 0); | |
860 | WriteW6692B(&card->bc[1], W_B_EXIM, 0); | |
861 | /* Reset D-chan receiver and transmitter */ | |
862 | WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST | W_D_CMDR_XRST); | |
863 | /* Reset B-chan receiver and transmitter */ | |
864 | WriteW6692B(&card->bc[0], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); | |
865 | WriteW6692B(&card->bc[1], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST); | |
866 | /* enable peripheral */ | |
867 | if (card->subtype == W6692_USR) { | |
868 | /* seems that USR implemented some power control features | |
869 | * Pin 79 is connected to the oscilator circuit so we | |
870 | * have to handle it here | |
871 | */ | |
872 | card->pctl = 0x80; | |
873 | card->xdata = 0; | |
874 | WriteW6692(card, W_PCTL, card->pctl); | |
875 | WriteW6692(card, W_XDATA, card->xdata); | |
876 | } else { | |
877 | card->pctl = W_PCTL_OE5 | W_PCTL_OE4 | W_PCTL_OE2 | | |
878 | W_PCTL_OE1 | W_PCTL_OE0; | |
879 | card->xaddr = 0x00;/* all sw off */ | |
880 | if (card->fmask & pots) | |
881 | card->xdata |= 0x06; /* POWER UP/ LED OFF / ALAW */ | |
882 | if (card->fmask & led) | |
883 | card->xdata |= 0x04; /* LED OFF */ | |
884 | if ((card->fmask & pots) || (card->fmask & led)) { | |
885 | WriteW6692(card, W_PCTL, card->pctl); | |
886 | WriteW6692(card, W_XADDR, card->xaddr); | |
887 | WriteW6692(card, W_XDATA, card->xdata); | |
888 | val = ReadW6692(card, W_XADDR); | |
889 | if (debug & DEBUG_HW) | |
890 | pr_notice("%s: W_XADDR=%02x\n", | |
891 | card->name, val); | |
892 | } | |
893 | } | |
894 | } | |
895 | ||
896 | static void | |
897 | reset_w6692(struct w6692_hw *card) | |
898 | { | |
899 | WriteW6692(card, W_D_CTL, W_D_CTL_SRST); | |
900 | mdelay(10); | |
901 | WriteW6692(card, W_D_CTL, 0); | |
902 | } | |
903 | ||
904 | static int | |
905 | init_card(struct w6692_hw *card) | |
906 | { | |
907 | int cnt = 3; | |
908 | u_long flags; | |
909 | ||
910 | spin_lock_irqsave(&card->lock, flags); | |
911 | disable_hwirq(card); | |
912 | spin_unlock_irqrestore(&card->lock, flags); | |
913 | if (request_irq(card->irq, w6692_irq, IRQF_SHARED, card->name, card)) { | |
914 | pr_info("%s: couldn't get interrupt %d\n", card->name, | |
915 | card->irq); | |
916 | return -EIO; | |
917 | } | |
918 | while (cnt--) { | |
919 | spin_lock_irqsave(&card->lock, flags); | |
920 | initW6692(card); | |
921 | enable_hwirq(card); | |
922 | spin_unlock_irqrestore(&card->lock, flags); | |
923 | /* Timeout 10ms */ | |
924 | msleep_interruptible(10); | |
925 | if (debug & DEBUG_HW) | |
926 | pr_notice("%s: IRQ %d count %d\n", card->name, | |
927 | card->irq, card->irqcnt); | |
928 | if (!card->irqcnt) { | |
929 | pr_info("%s: IRQ(%d) getting no IRQs during init %d\n", | |
930 | card->name, card->irq, 3 - cnt); | |
931 | reset_w6692(card); | |
932 | } else | |
933 | return 0; | |
934 | } | |
935 | free_irq(card->irq, card); | |
936 | return -EIO; | |
937 | } | |
938 | ||
939 | static int | |
940 | w6692_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb) | |
941 | { | |
942 | struct bchannel *bch = container_of(ch, struct bchannel, ch); | |
943 | struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch); | |
944 | struct w6692_hw *card = bch->hw; | |
945 | int ret = -EINVAL; | |
946 | struct mISDNhead *hh = mISDN_HEAD_P(skb); | |
947 | u32 id; | |
948 | u_long flags; | |
949 | ||
950 | switch (hh->prim) { | |
951 | case PH_DATA_REQ: | |
952 | spin_lock_irqsave(&card->lock, flags); | |
953 | ret = bchannel_senddata(bch, skb); | |
954 | if (ret > 0) { /* direct TX */ | |
955 | id = hh->id; /* skb can be freed */ | |
956 | ret = 0; | |
957 | W6692_fill_Bfifo(bc); | |
958 | spin_unlock_irqrestore(&card->lock, flags); | |
959 | if (!test_bit(FLG_TRANSPARENT, &bch->Flags)) | |
960 | queue_ch_frame(ch, PH_DATA_CNF, id, NULL); | |
961 | } else | |
962 | spin_unlock_irqrestore(&card->lock, flags); | |
963 | return ret; | |
964 | case PH_ACTIVATE_REQ: | |
965 | spin_lock_irqsave(&card->lock, flags); | |
966 | if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) | |
967 | ret = w6692_mode(bc, ch->protocol); | |
968 | else | |
969 | ret = 0; | |
970 | spin_unlock_irqrestore(&card->lock, flags); | |
971 | if (!ret) | |
972 | _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0, | |
973 | NULL, GFP_KERNEL); | |
974 | break; | |
975 | case PH_DEACTIVATE_REQ: | |
976 | spin_lock_irqsave(&card->lock, flags); | |
977 | mISDN_clear_bchannel(bch); | |
978 | w6692_mode(bc, ISDN_P_NONE); | |
979 | spin_unlock_irqrestore(&card->lock, flags); | |
980 | _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0, | |
981 | NULL, GFP_KERNEL); | |
982 | ret = 0; | |
983 | break; | |
984 | default: | |
985 | pr_info("%s: %s unknown prim(%x,%x)\n", | |
986 | card->name, __func__, hh->prim, hh->id); | |
987 | ret = -EINVAL; | |
988 | } | |
989 | if (!ret) | |
990 | dev_kfree_skb(skb); | |
991 | return ret; | |
992 | } | |
993 | ||
994 | static int | |
995 | channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) | |
996 | { | |
997 | int ret = 0; | |
998 | ||
999 | switch (cq->op) { | |
1000 | case MISDN_CTRL_GETOP: | |
1001 | cq->op = 0; | |
1002 | break; | |
1003 | /* Nothing implemented yet */ | |
1004 | case MISDN_CTRL_FILL_EMPTY: | |
1005 | default: | |
1006 | pr_info("%s: unknown Op %x\n", __func__, cq->op); | |
1007 | ret = -EINVAL; | |
1008 | break; | |
1009 | } | |
1010 | return ret; | |
1011 | } | |
1012 | ||
1013 | static int | |
1014 | open_bchannel(struct w6692_hw *card, struct channel_req *rq) | |
1015 | { | |
1016 | struct bchannel *bch; | |
1017 | ||
1018 | if (rq->adr.channel > 2) | |
1019 | return -EINVAL; | |
1020 | if (rq->protocol == ISDN_P_NONE) | |
1021 | return -EINVAL; | |
1022 | bch = &card->bc[rq->adr.channel - 1].bch; | |
1023 | if (test_and_set_bit(FLG_OPEN, &bch->Flags)) | |
1024 | return -EBUSY; /* b-channel can be only open once */ | |
1025 | test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags); | |
1026 | bch->ch.protocol = rq->protocol; | |
1027 | rq->ch = &bch->ch; | |
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | static int | |
1032 | channel_ctrl(struct w6692_hw *card, struct mISDN_ctrl_req *cq) | |
1033 | { | |
1034 | int ret = 0; | |
1035 | ||
1036 | switch (cq->op) { | |
1037 | case MISDN_CTRL_GETOP: | |
1038 | cq->op = 0; | |
1039 | break; | |
1040 | default: | |
1041 | pr_info("%s: unknown CTRL OP %x\n", card->name, cq->op); | |
1042 | ret = -EINVAL; | |
1043 | break; | |
1044 | } | |
1045 | return ret; | |
1046 | } | |
1047 | ||
1048 | static int | |
1049 | w6692_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg) | |
1050 | { | |
1051 | struct bchannel *bch = container_of(ch, struct bchannel, ch); | |
1052 | struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch); | |
1053 | struct w6692_hw *card = bch->hw; | |
1054 | int ret = -EINVAL; | |
1055 | u_long flags; | |
1056 | ||
1057 | pr_debug("%s: %s cmd:%x %p\n", card->name, __func__, cmd, arg); | |
1058 | switch (cmd) { | |
1059 | case CLOSE_CHANNEL: | |
1060 | test_and_clear_bit(FLG_OPEN, &bch->Flags); | |
1061 | if (test_bit(FLG_ACTIVE, &bch->Flags)) { | |
1062 | spin_lock_irqsave(&card->lock, flags); | |
1063 | mISDN_freebchannel(bch); | |
1064 | w6692_mode(bc, ISDN_P_NONE); | |
1065 | spin_unlock_irqrestore(&card->lock, flags); | |
1066 | } else { | |
1067 | skb_queue_purge(&bch->rqueue); | |
1068 | bch->rcount = 0; | |
1069 | } | |
1070 | ch->protocol = ISDN_P_NONE; | |
1071 | ch->peer = NULL; | |
1072 | module_put(THIS_MODULE); | |
1073 | ret = 0; | |
1074 | break; | |
1075 | case CONTROL_CHANNEL: | |
1076 | ret = channel_bctrl(bch, arg); | |
1077 | break; | |
1078 | default: | |
1079 | pr_info("%s: %s unknown prim(%x)\n", | |
1080 | card->name, __func__, cmd); | |
1081 | } | |
1082 | return ret; | |
1083 | } | |
1084 | ||
1085 | static int | |
1086 | w6692_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb) | |
1087 | { | |
1088 | struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); | |
1089 | struct dchannel *dch = container_of(dev, struct dchannel, dev); | |
1090 | struct w6692_hw *card = container_of(dch, struct w6692_hw, dch); | |
1091 | int ret = -EINVAL; | |
1092 | struct mISDNhead *hh = mISDN_HEAD_P(skb); | |
1093 | u32 id; | |
1094 | u_long flags; | |
1095 | ||
1096 | switch (hh->prim) { | |
1097 | case PH_DATA_REQ: | |
1098 | spin_lock_irqsave(&card->lock, flags); | |
1099 | ret = dchannel_senddata(dch, skb); | |
1100 | if (ret > 0) { /* direct TX */ | |
1101 | id = hh->id; /* skb can be freed */ | |
1102 | W6692_fill_Dfifo(card); | |
1103 | ret = 0; | |
1104 | spin_unlock_irqrestore(&card->lock, flags); | |
1105 | queue_ch_frame(ch, PH_DATA_CNF, id, NULL); | |
1106 | } else | |
1107 | spin_unlock_irqrestore(&card->lock, flags); | |
1108 | return ret; | |
1109 | case PH_ACTIVATE_REQ: | |
1110 | ret = l1_event(dch->l1, hh->prim); | |
1111 | break; | |
1112 | case PH_DEACTIVATE_REQ: | |
1113 | test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); | |
1114 | ret = l1_event(dch->l1, hh->prim); | |
1115 | break; | |
1116 | } | |
1117 | ||
1118 | if (!ret) | |
1119 | dev_kfree_skb(skb); | |
1120 | return ret; | |
1121 | } | |
1122 | ||
1123 | static int | |
1124 | w6692_l1callback(struct dchannel *dch, u32 cmd) | |
1125 | { | |
1126 | struct w6692_hw *card = container_of(dch, struct w6692_hw, dch); | |
1127 | u_long flags; | |
1128 | ||
1129 | pr_debug("%s: cmd(%x) state(%02x)\n", card->name, cmd, card->state); | |
1130 | switch (cmd) { | |
1131 | case INFO3_P8: | |
1132 | spin_lock_irqsave(&card->lock, flags); | |
1133 | ph_command(card, W_L1CMD_AR8); | |
1134 | spin_unlock_irqrestore(&card->lock, flags); | |
1135 | break; | |
1136 | case INFO3_P10: | |
1137 | spin_lock_irqsave(&card->lock, flags); | |
1138 | ph_command(card, W_L1CMD_AR10); | |
1139 | spin_unlock_irqrestore(&card->lock, flags); | |
1140 | break; | |
1141 | case HW_RESET_REQ: | |
1142 | spin_lock_irqsave(&card->lock, flags); | |
1143 | if (card->state != W_L1IND_DRD) | |
1144 | ph_command(card, W_L1CMD_RST); | |
1145 | ph_command(card, W_L1CMD_ECK); | |
1146 | spin_unlock_irqrestore(&card->lock, flags); | |
1147 | break; | |
1148 | case HW_DEACT_REQ: | |
1149 | skb_queue_purge(&dch->squeue); | |
1150 | if (dch->tx_skb) { | |
1151 | dev_kfree_skb(dch->tx_skb); | |
1152 | dch->tx_skb = NULL; | |
1153 | } | |
1154 | dch->tx_idx = 0; | |
1155 | if (dch->rx_skb) { | |
1156 | dev_kfree_skb(dch->rx_skb); | |
1157 | dch->rx_skb = NULL; | |
1158 | } | |
1159 | test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); | |
1160 | if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) | |
1161 | del_timer(&dch->timer); | |
1162 | break; | |
1163 | case HW_POWERUP_REQ: | |
1164 | spin_lock_irqsave(&card->lock, flags); | |
1165 | ph_command(card, W_L1CMD_ECK); | |
1166 | spin_unlock_irqrestore(&card->lock, flags); | |
1167 | break; | |
1168 | case PH_ACTIVATE_IND: | |
1169 | test_and_set_bit(FLG_ACTIVE, &dch->Flags); | |
1170 | _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, | |
1171 | GFP_ATOMIC); | |
1172 | break; | |
1173 | case PH_DEACTIVATE_IND: | |
1174 | test_and_clear_bit(FLG_ACTIVE, &dch->Flags); | |
1175 | _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, | |
1176 | GFP_ATOMIC); | |
1177 | break; | |
1178 | default: | |
1179 | pr_debug("%s: %s unknown command %x\n", card->name, | |
1180 | __func__, cmd); | |
1181 | return -1; | |
1182 | } | |
1183 | return 0; | |
1184 | } | |
1185 | ||
1186 | static int | |
1187 | open_dchannel(struct w6692_hw *card, struct channel_req *rq) | |
1188 | { | |
1189 | pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__, | |
1190 | card->dch.dev.id, __builtin_return_address(1)); | |
1191 | if (rq->protocol != ISDN_P_TE_S0) | |
1192 | return -EINVAL; | |
1193 | if (rq->adr.channel == 1) | |
1194 | /* E-Channel not supported */ | |
1195 | return -EINVAL; | |
1196 | rq->ch = &card->dch.dev.D; | |
1197 | rq->ch->protocol = rq->protocol; | |
1198 | if (card->dch.state == 7) | |
1199 | _queue_data(rq->ch, PH_ACTIVATE_IND, MISDN_ID_ANY, | |
1200 | 0, NULL, GFP_KERNEL); | |
1201 | return 0; | |
1202 | } | |
1203 | ||
1204 | static int | |
1205 | w6692_dctrl(struct mISDNchannel *ch, u32 cmd, void *arg) | |
1206 | { | |
1207 | struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); | |
1208 | struct dchannel *dch = container_of(dev, struct dchannel, dev); | |
1209 | struct w6692_hw *card = container_of(dch, struct w6692_hw, dch); | |
1210 | struct channel_req *rq; | |
1211 | int err = 0; | |
1212 | ||
1213 | pr_debug("%s: DCTRL: %x %p\n", card->name, cmd, arg); | |
1214 | switch (cmd) { | |
1215 | case OPEN_CHANNEL: | |
1216 | rq = arg; | |
1217 | if (rq->protocol == ISDN_P_TE_S0) | |
1218 | err = open_dchannel(card, rq); | |
1219 | else | |
1220 | err = open_bchannel(card, rq); | |
1221 | if (err) | |
1222 | break; | |
1223 | if (!try_module_get(THIS_MODULE)) | |
1224 | pr_info("%s: cannot get module\n", card->name); | |
1225 | break; | |
1226 | case CLOSE_CHANNEL: | |
1227 | pr_debug("%s: dev(%d) close from %p\n", card->name, | |
1228 | dch->dev.id, __builtin_return_address(0)); | |
1229 | module_put(THIS_MODULE); | |
1230 | break; | |
1231 | case CONTROL_CHANNEL: | |
1232 | err = channel_ctrl(card, arg); | |
1233 | break; | |
1234 | default: | |
1235 | pr_debug("%s: unknown DCTRL command %x\n", card->name, cmd); | |
1236 | return -EINVAL; | |
1237 | } | |
1238 | return err; | |
1239 | } | |
1240 | ||
70034918 | 1241 | static int |
707b2ce6 KK |
1242 | setup_w6692(struct w6692_hw *card) |
1243 | { | |
1244 | u32 val; | |
1245 | ||
1246 | if (!request_region(card->addr, 256, card->name)) { | |
1247 | pr_info("%s: config port %x-%x already in use\n", card->name, | |
1248 | card->addr, card->addr + 255); | |
1249 | return -EIO; | |
1250 | } | |
1251 | W6692Version(card); | |
1252 | card->bc[0].addr = card->addr; | |
1253 | card->bc[1].addr = card->addr + 0x40; | |
1254 | val = ReadW6692(card, W_ISTA); | |
1255 | if (debug & DEBUG_HW) | |
1256 | pr_notice("%s ISTA=%02x\n", card->name, val); | |
1257 | val = ReadW6692(card, W_IMASK); | |
1258 | if (debug & DEBUG_HW) | |
1259 | pr_notice("%s IMASK=%02x\n", card->name, val); | |
1260 | val = ReadW6692(card, W_D_EXIR); | |
1261 | if (debug & DEBUG_HW) | |
1262 | pr_notice("%s D_EXIR=%02x\n", card->name, val); | |
1263 | val = ReadW6692(card, W_D_EXIM); | |
1264 | if (debug & DEBUG_HW) | |
1265 | pr_notice("%s D_EXIM=%02x\n", card->name, val); | |
1266 | val = ReadW6692(card, W_D_RSTA); | |
1267 | if (debug & DEBUG_HW) | |
1268 | pr_notice("%s D_RSTA=%02x\n", card->name, val); | |
1269 | return 0; | |
1270 | } | |
1271 | ||
1272 | static void | |
1273 | release_card(struct w6692_hw *card) | |
1274 | { | |
1275 | u_long flags; | |
1276 | ||
1277 | spin_lock_irqsave(&card->lock, flags); | |
1278 | disable_hwirq(card); | |
1279 | w6692_mode(&card->bc[0], ISDN_P_NONE); | |
1280 | w6692_mode(&card->bc[1], ISDN_P_NONE); | |
1281 | if ((card->fmask & led) || card->subtype == W6692_USR) { | |
1282 | card->xdata |= 0x04; /* LED OFF */ | |
1283 | WriteW6692(card, W_XDATA, card->xdata); | |
1284 | } | |
1285 | spin_unlock_irqrestore(&card->lock, flags); | |
1286 | free_irq(card->irq, card); | |
1287 | l1_event(card->dch.l1, CLOSE_CHANNEL); | |
1288 | mISDN_unregister_device(&card->dch.dev); | |
1289 | release_region(card->addr, 256); | |
1290 | mISDN_freebchannel(&card->bc[1].bch); | |
1291 | mISDN_freebchannel(&card->bc[0].bch); | |
1292 | mISDN_freedchannel(&card->dch); | |
1293 | write_lock_irqsave(&card_lock, flags); | |
1294 | list_del(&card->list); | |
1295 | write_unlock_irqrestore(&card_lock, flags); | |
1296 | pci_disable_device(card->pdev); | |
1297 | pci_set_drvdata(card->pdev, NULL); | |
1298 | kfree(card); | |
1299 | } | |
1300 | ||
1301 | static int | |
1302 | setup_instance(struct w6692_hw *card) | |
1303 | { | |
1304 | int i, err; | |
1305 | u_long flags; | |
1306 | ||
1307 | snprintf(card->name, MISDN_MAX_IDLEN - 1, "w6692.%d", w6692_cnt + 1); | |
1308 | write_lock_irqsave(&card_lock, flags); | |
1309 | list_add_tail(&card->list, &Cards); | |
1310 | write_unlock_irqrestore(&card_lock, flags); | |
1311 | card->fmask = (1 << w6692_cnt); | |
1312 | _set_debug(card); | |
1313 | spin_lock_init(&card->lock); | |
1314 | mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, W6692_ph_bh); | |
1315 | card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0); | |
1316 | card->dch.dev.D.send = w6692_l2l1D; | |
1317 | card->dch.dev.D.ctrl = w6692_dctrl; | |
1318 | card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | | |
1319 | (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); | |
1320 | card->dch.hw = card; | |
1321 | card->dch.dev.nrbchan = 2; | |
1322 | for (i = 0; i < 2; i++) { | |
1323 | mISDN_initbchannel(&card->bc[i].bch, MAX_DATA_MEM); | |
1324 | card->bc[i].bch.hw = card; | |
1325 | card->bc[i].bch.nr = i + 1; | |
1326 | card->bc[i].bch.ch.nr = i + 1; | |
1327 | card->bc[i].bch.ch.send = w6692_l2l1B; | |
1328 | card->bc[i].bch.ch.ctrl = w6692_bctrl; | |
1329 | set_channelmap(i + 1, card->dch.dev.channelmap); | |
1330 | list_add(&card->bc[i].bch.ch.list, &card->dch.dev.bchannels); | |
1331 | } | |
1332 | err = setup_w6692(card); | |
1333 | if (err) | |
1334 | goto error_setup; | |
1335 | err = mISDN_register_device(&card->dch.dev, &card->pdev->dev, | |
1336 | card->name); | |
1337 | if (err) | |
1338 | goto error_reg; | |
1339 | err = init_card(card); | |
1340 | if (err) | |
1341 | goto error_init; | |
1342 | err = create_l1(&card->dch, w6692_l1callback); | |
1343 | if (!err) { | |
1344 | w6692_cnt++; | |
1345 | pr_notice("W6692 %d cards installed\n", w6692_cnt); | |
1346 | return 0; | |
1347 | } | |
1348 | ||
1349 | free_irq(card->irq, card); | |
1350 | error_init: | |
1351 | mISDN_unregister_device(&card->dch.dev); | |
1352 | error_reg: | |
1353 | release_region(card->addr, 256); | |
1354 | error_setup: | |
1355 | mISDN_freebchannel(&card->bc[1].bch); | |
1356 | mISDN_freebchannel(&card->bc[0].bch); | |
1357 | mISDN_freedchannel(&card->dch); | |
1358 | write_lock_irqsave(&card_lock, flags); | |
1359 | list_del(&card->list); | |
1360 | write_unlock_irqrestore(&card_lock, flags); | |
1361 | kfree(card); | |
1362 | return err; | |
1363 | } | |
1364 | ||
1365 | static int __devinit | |
1366 | w6692_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
1367 | { | |
1368 | int err = -ENOMEM; | |
1369 | struct w6692_hw *card; | |
1370 | struct w6692map *m = (struct w6692map *)ent->driver_data; | |
1371 | ||
1372 | card = kzalloc(sizeof(struct w6692_hw), GFP_KERNEL); | |
1373 | if (!card) { | |
1374 | pr_info("No kmem for w6692 card\n"); | |
1375 | return err; | |
1376 | } | |
1377 | card->pdev = pdev; | |
1378 | card->subtype = m->subtype; | |
1379 | err = pci_enable_device(pdev); | |
1380 | if (err) { | |
1381 | kfree(card); | |
1382 | return err; | |
1383 | } | |
1384 | ||
1385 | printk(KERN_INFO "mISDN_w6692: found adapter %s at %s\n", | |
1386 | m->name, pci_name(pdev)); | |
1387 | ||
1388 | card->addr = pci_resource_start(pdev, 1); | |
1389 | card->irq = pdev->irq; | |
1390 | pci_set_drvdata(pdev, card); | |
1391 | err = setup_instance(card); | |
1392 | if (err) | |
1393 | pci_set_drvdata(pdev, NULL); | |
1394 | return err; | |
1395 | } | |
1396 | ||
1397 | static void __devexit | |
1398 | w6692_remove_pci(struct pci_dev *pdev) | |
1399 | { | |
1400 | struct w6692_hw *card = pci_get_drvdata(pdev); | |
1401 | ||
1402 | if (card) | |
1403 | release_card(card); | |
1404 | else | |
1405 | if (debug) | |
698f9315 | 1406 | pr_notice("%s: drvdata already removed\n", __func__); |
707b2ce6 KK |
1407 | } |
1408 | ||
1409 | static struct pci_device_id w6692_ids[] = { | |
1410 | { PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH, | |
1411 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[0]}, | |
1412 | { PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692, | |
1413 | PCI_VENDOR_ID_USR, PCI_DEVICE_ID_USR_6692, 0, 0, | |
1414 | (ulong)&w6692_map[2]}, | |
1415 | { PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692, | |
1416 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[1]}, | |
1417 | { } | |
1418 | }; | |
1419 | MODULE_DEVICE_TABLE(pci, w6692_ids); | |
1420 | ||
1421 | static struct pci_driver w6692_driver = { | |
1422 | .name = "w6692", | |
1423 | .probe = w6692_probe, | |
1424 | .remove = __devexit_p(w6692_remove_pci), | |
1425 | .id_table = w6692_ids, | |
1426 | }; | |
1427 | ||
1428 | static int __init w6692_init(void) | |
1429 | { | |
1430 | int err; | |
1431 | ||
1432 | pr_notice("Winbond W6692 PCI driver Rev. %s\n", W6692_REV); | |
1433 | ||
1434 | err = pci_register_driver(&w6692_driver); | |
1435 | return err; | |
1436 | } | |
1437 | ||
1438 | static void __exit w6692_cleanup(void) | |
1439 | { | |
1440 | pci_unregister_driver(&w6692_driver); | |
1441 | } | |
1442 | ||
1443 | module_init(w6692_init); | |
1444 | module_exit(w6692_cleanup); |