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isdn: rename capi_ctr_reseted() to capi_ctr_down()
[deliverable/linux.git] / drivers / isdn / hardware / avm / b1dma.c
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1da177e4
LT		 1/* $Id: b1dma.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $
2 *
3 * Common module for AVM B1 cards that support dma with AMCC
4 *
5 * Copyright 2000 by Carsten Paeth <calle@calle.de>
6 *
7 * This software may be used and distributed according to the terms
8 * of the GNU General Public License, incorporated herein by reference.
9 *
10 */
11
1da177e4
LT		 12#include <linux/module.h>
13#include <linux/kernel.h>
14#include <linux/skbuff.h>
15#include <linux/delay.h>
16#include <linux/mm.h>
17#include <linux/interrupt.h>
18#include <linux/ioport.h>
19#include <linux/capi.h>
20#include <linux/kernelcapi.h>
21#include <asm/io.h>
22#include <linux/init.h>
23#include <asm/uaccess.h>
24#include <linux/netdevice.h>
25#include <linux/isdn/capilli.h>
26#include "avmcard.h"
27#include <linux/isdn/capicmd.h>
28#include <linux/isdn/capiutil.h>
29
30static char *revision = "$Revision: 1.1.2.3 $";
31
26fb5c58 32#undef AVM_B1DMA_DEBUG
1da177e4
LT		 33
34/* ------------------------------------------------------------- */
35
36MODULE_DESCRIPTION("CAPI4Linux: DMA support for active AVM cards");
37MODULE_AUTHOR("Carsten Paeth");
38MODULE_LICENSE("GPL");
39
40static int suppress_pollack = 0;
8d3b33f6 41module_param(suppress_pollack, bool, 0);
1da177e4
LT		 42
43/* ------------------------------------------------------------- */
44
45static void b1dma_dispatch_tx(avmcard *card);
46
47/* ------------------------------------------------------------- */
48
49/* S5933 */
50
51#define AMCC_RXPTR 0x24
52#define AMCC_RXLEN 0x28
53#define AMCC_TXPTR 0x2c
54#define AMCC_TXLEN 0x30
55
56#define AMCC_INTCSR 0x38
57# define EN_READ_TC_INT 0x00008000L
58# define EN_WRITE_TC_INT 0x00004000L
59# define EN_TX_TC_INT EN_READ_TC_INT
60# define EN_RX_TC_INT EN_WRITE_TC_INT
61# define AVM_FLAG 0x30000000L
62
63# define ANY_S5933_INT 0x00800000L
64# define READ_TC_INT 0x00080000L
65# define WRITE_TC_INT 0x00040000L
66# define TX_TC_INT READ_TC_INT
67# define RX_TC_INT WRITE_TC_INT
68# define MASTER_ABORT_INT 0x00100000L
69# define TARGET_ABORT_INT 0x00200000L
70# define BUS_MASTER_INT 0x00200000L
71# define ALL_INT 0x000C0000L
72
73#define AMCC_MCSR 0x3c
74# define A2P_HI_PRIORITY 0x00000100L
75# define EN_A2P_TRANSFERS 0x00000400L
76# define P2A_HI_PRIORITY 0x00001000L
77# define EN_P2A_TRANSFERS 0x00004000L
78# define RESET_A2P_FLAGS 0x04000000L
79# define RESET_P2A_FLAGS 0x02000000L
80
81/* ------------------------------------------------------------- */
82
83static inline void b1dma_writel(avmcard *card, u32 value, int off)
84{
85 writel(value, card->mbase + off);
86}
87
88static inline u32 b1dma_readl(avmcard *card, int off)
89{
90 return readl(card->mbase + off);
91}
92
93/* ------------------------------------------------------------- */
94
95static inline int b1dma_tx_empty(unsigned int port)
96{
97 return inb(port + 0x03) & 0x1;
98}
99
100static inline int b1dma_rx_full(unsigned int port)
101{
102 return inb(port + 0x02) & 0x1;
103}
104
105static int b1dma_tolink(avmcard *card, void *buf, unsigned int len)
106{
107 unsigned long stop = jiffies + 1 * HZ; /* maximum wait time 1 sec */
108 unsigned char *s = (unsigned char *)buf;
109 while (len--) {
110 while ( !b1dma_tx_empty(card->port)
111 && time_before(jiffies, stop));
112 if (!b1dma_tx_empty(card->port))
113 return -1;
114 t1outp(card->port, 0x01, *s++);
115 }
116 return 0;
117}
118
119static int b1dma_fromlink(avmcard *card, void *buf, unsigned int len)
120{
121 unsigned long stop = jiffies + 1 * HZ; /* maximum wait time 1 sec */
122 unsigned char *s = (unsigned char *)buf;
123 while (len--) {
124 while ( !b1dma_rx_full(card->port)
125 && time_before(jiffies, stop));
126 if (!b1dma_rx_full(card->port))
127 return -1;
128 *s++ = t1inp(card->port, 0x00);
129 }
130 return 0;
131}
132
133static int WriteReg(avmcard *card, u32 reg, u8 val)
134{
135 u8 cmd = 0x00;
136 if ( b1dma_tolink(card, &cmd, 1) == 0
137 && b1dma_tolink(card, &reg, 4) == 0) {
138 u32 tmp = val;
139 return b1dma_tolink(card, &tmp, 4);
140 }
141 return -1;
142}
143
144static u8 ReadReg(avmcard *card, u32 reg)
145{
146 u8 cmd = 0x01;
147 if ( b1dma_tolink(card, &cmd, 1) == 0
148 && b1dma_tolink(card, &reg, 4) == 0) {
149 u32 tmp;
150 if (b1dma_fromlink(card, &tmp, 4) == 0)
151 return (u8)tmp;
152 }
153 return 0xff;
154}
155
156/* ------------------------------------------------------------- */
157
158static inline void _put_byte(void **pp, u8 val)
159{
160 u8 *s = *pp;
161 *s++ = val;
162 *pp = s;
163}
164
165static inline void _put_word(void **pp, u32 val)
166{
167 u8 *s = *pp;
168 *s++ = val & 0xff;
169 *s++ = (val >> 8) & 0xff;
170 *s++ = (val >> 16) & 0xff;
171 *s++ = (val >> 24) & 0xff;
172 *pp = s;
173}
174
175static inline void _put_slice(void **pp, unsigned char *dp, unsigned int len)
176{
177 unsigned i = len;
178 _put_word(pp, i);
179 while (i-- > 0)
180 _put_byte(pp, *dp++);
181}
182
183static inline u8 _get_byte(void **pp)
184{
185 u8 *s = *pp;
186 u8 val;
187 val = *s++;
188 *pp = s;
189 return val;
190}
191
192static inline u32 _get_word(void **pp)
193{
194 u8 *s = *pp;
195 u32 val;
196 val = *s++;
197 val |= (*s++ << 8);
198 val |= (*s++ << 16);
199 val |= (*s++ << 24);
200 *pp = s;
201 return val;
202}
203
204static inline u32 _get_slice(void **pp, unsigned char *dp)
205{
206 unsigned int len, i;
207
208 len = i = _get_word(pp);
209 while (i-- > 0) *dp++ = _get_byte(pp);
210 return len;
211}
212
213/* ------------------------------------------------------------- */
214
215void b1dma_reset(avmcard *card)
216{
217 card->csr = 0x0;
218 b1dma_writel(card, card->csr, AMCC_INTCSR);
219 b1dma_writel(card, 0, AMCC_MCSR);
220 b1dma_writel(card, 0, AMCC_RXLEN);
221 b1dma_writel(card, 0, AMCC_TXLEN);
222
223 t1outp(card->port, 0x10, 0x00);
224 t1outp(card->port, 0x07, 0x00);
225
226 b1dma_writel(card, 0, AMCC_MCSR);
227 mdelay(10);
228 b1dma_writel(card, 0x0f000000, AMCC_MCSR); /* reset all */
229 mdelay(10);
230 b1dma_writel(card, 0, AMCC_MCSR);
231 if (card->cardtype == avm_t1pci)
232 mdelay(42);
233 else
234 mdelay(10);
235}
236
237/* ------------------------------------------------------------- */
238
239static int b1dma_detect(avmcard *card)
240{
241 b1dma_writel(card, 0, AMCC_MCSR);
242 mdelay(10);
243 b1dma_writel(card, 0x0f000000, AMCC_MCSR); /* reset all */
244 mdelay(10);
245 b1dma_writel(card, 0, AMCC_MCSR);
246 mdelay(42);
247
248 b1dma_writel(card, 0, AMCC_RXLEN);
249 b1dma_writel(card, 0, AMCC_TXLEN);
250 card->csr = 0x0;
251 b1dma_writel(card, card->csr, AMCC_INTCSR);
252
253 if (b1dma_readl(card, AMCC_MCSR) != 0x000000E6)
254 return 1;
255
256 b1dma_writel(card, 0xffffffff, AMCC_RXPTR);
257 b1dma_writel(card, 0xffffffff, AMCC_TXPTR);
258 if ( b1dma_readl(card, AMCC_RXPTR) != 0xfffffffc
259 || b1dma_readl(card, AMCC_TXPTR) != 0xfffffffc)
260 return 2;
261
262 b1dma_writel(card, 0x0, AMCC_RXPTR);
263 b1dma_writel(card, 0x0, AMCC_TXPTR);
264 if ( b1dma_readl(card, AMCC_RXPTR) != 0x0
265 || b1dma_readl(card, AMCC_TXPTR) != 0x0)
266 return 3;
267
268 t1outp(card->port, 0x10, 0x00);
269 t1outp(card->port, 0x07, 0x00);
270
271 t1outp(card->port, 0x02, 0x02);
272 t1outp(card->port, 0x03, 0x02);
273
274 if ( (t1inp(card->port, 0x02) & 0xFE) != 0x02
275 || t1inp(card->port, 0x3) != 0x03)
276 return 4;
277
278 t1outp(card->port, 0x02, 0x00);
279 t1outp(card->port, 0x03, 0x00);
280
281 if ( (t1inp(card->port, 0x02) & 0xFE) != 0x00
282 || t1inp(card->port, 0x3) != 0x01)
283 return 5;
284
285 return 0;
286}
287
288int t1pci_detect(avmcard *card)
289{
290 int ret;
291
292 if ((ret = b1dma_detect(card)) != 0)
293 return ret;
294
295 /* Transputer test */
296
297 if ( WriteReg(card, 0x80001000, 0x11) != 0
298 || WriteReg(card, 0x80101000, 0x22) != 0
299 || WriteReg(card, 0x80201000, 0x33) != 0
300 || WriteReg(card, 0x80301000, 0x44) != 0)
301 return 6;
302
303 if ( ReadReg(card, 0x80001000) != 0x11
304 || ReadReg(card, 0x80101000) != 0x22
305 || ReadReg(card, 0x80201000) != 0x33
306 || ReadReg(card, 0x80301000) != 0x44)
307 return 7;
308
309 if ( WriteReg(card, 0x80001000, 0x55) != 0
310 || WriteReg(card, 0x80101000, 0x66) != 0
311 || WriteReg(card, 0x80201000, 0x77) != 0
312 || WriteReg(card, 0x80301000, 0x88) != 0)
313 return 8;
314
315 if ( ReadReg(card, 0x80001000) != 0x55
316 || ReadReg(card, 0x80101000) != 0x66
317 || ReadReg(card, 0x80201000) != 0x77
318 || ReadReg(card, 0x80301000) != 0x88)
319 return 9;
320
321 return 0;
322}
323
324int b1pciv4_detect(avmcard *card)
325{
326 int ret, i;
327
328 if ((ret = b1dma_detect(card)) != 0)
329 return ret;
330
331 for (i=0; i < 5 ; i++) {
332 if (WriteReg(card, 0x80A00000, 0x21) != 0)
333 return 6;
334 if ((ReadReg(card, 0x80A00000) & 0x01) != 0x01)
335 return 7;
336 }
337 for (i=0; i < 5 ; i++) {
338 if (WriteReg(card, 0x80A00000, 0x20) != 0)
339 return 8;
340 if ((ReadReg(card, 0x80A00000) & 0x01) != 0x00)
341 return 9;
342 }
343
344 return 0;
345}
346
347static void b1dma_queue_tx(avmcard *card, struct sk_buff *skb)
348{
349 unsigned long flags;
350
351 spin_lock_irqsave(&card->lock, flags);
352
353 skb_queue_tail(&card->dma->send_queue, skb);
354
355 if (!(card->csr & EN_TX_TC_INT)) {
356 b1dma_dispatch_tx(card);
357 b1dma_writel(card, card->csr, AMCC_INTCSR);
358 }
359
360 spin_unlock_irqrestore(&card->lock, flags);
361}
362
363/* ------------------------------------------------------------- */
364
365static void b1dma_dispatch_tx(avmcard *card)
366{
367 avmcard_dmainfo *dma = card->dma;
368 struct sk_buff *skb;
369 u8 cmd, subcmd;
370 u16 len;
371 u32 txlen;
372 void *p;
373
374 skb = skb_dequeue(&dma->send_queue);
375
376 len = CAPIMSG_LEN(skb->data);
377
378 if (len) {
379 cmd = CAPIMSG_COMMAND(skb->data);
380 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
381
382 p = dma->sendbuf.dmabuf;
383
384 if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
385 u16 dlen = CAPIMSG_DATALEN(skb->data);
386 _put_byte(&p, SEND_DATA_B3_REQ);
387 _put_slice(&p, skb->data, len);
388 _put_slice(&p, skb->data + len, dlen);
389 } else {
390 _put_byte(&p, SEND_MESSAGE);
391 _put_slice(&p, skb->data, len);
392 }
393 txlen = (u8 *)p - (u8 *)dma->sendbuf.dmabuf;
26fb5c58 394#ifdef AVM_B1DMA_DEBUG
1da177e4
LT		 395 printk(KERN_DEBUG "tx: put msg len=%d\n", txlen);
396#endif
397 } else {
398 txlen = skb->len-2;
26fb5c58 399#ifdef AVM_B1DMA_POLLDEBUG
1da177e4
LT		 400 if (skb->data[2] == SEND_POLLACK)
401 printk(KERN_INFO "%s: send ack\n", card->name);
402#endif
26fb5c58 403#ifdef AVM_B1DMA_DEBUG
1da177e4
LT		 404 printk(KERN_DEBUG "tx: put 0x%x len=%d\n",
405 skb->data[2], txlen);
406#endif
d626f62b
ACM		 407 skb_copy_from_linear_data_offset(skb, 2, dma->sendbuf.dmabuf,
408 skb->len - 2);
1da177e4
LT		 409 }
410 txlen = (txlen + 3) & ~3;
411
412 b1dma_writel(card, dma->sendbuf.dmaaddr, AMCC_TXPTR);
413 b1dma_writel(card, txlen, AMCC_TXLEN);
414
415 card->csr |= EN_TX_TC_INT;
416
417 dev_kfree_skb_any(skb);
418}
419
420/* ------------------------------------------------------------- */
421
422static void queue_pollack(avmcard *card)
423{
424 struct sk_buff *skb;
425 void *p;
426
427 skb = alloc_skb(3, GFP_ATOMIC);
428 if (!skb) {
429 printk(KERN_CRIT "%s: no memory, lost poll ack\n",
430 card->name);
431 return;
432 }
433 p = skb->data;
434 _put_byte(&p, 0);
435 _put_byte(&p, 0);
436 _put_byte(&p, SEND_POLLACK);
437 skb_put(skb, (u8 *)p - (u8 *)skb->data);
438
439 b1dma_queue_tx(card, skb);
440}
441
442/* ------------------------------------------------------------- */
443
444static void b1dma_handle_rx(avmcard *card)
445{
446 avmctrl_info *cinfo = &card->ctrlinfo[0];
447 avmcard_dmainfo *dma = card->dma;
448 struct capi_ctr *ctrl = &cinfo->capi_ctrl;
449 struct sk_buff *skb;
450 void *p = dma->recvbuf.dmabuf+4;
451 u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
452 u8 b1cmd = _get_byte(&p);
453
26fb5c58 454#ifdef AVM_B1DMA_DEBUG
1da177e4
LT		 455 printk(KERN_DEBUG "rx: 0x%x %lu\n", b1cmd, (unsigned long)dma->recvlen);
456#endif
457
458 switch (b1cmd) {
459 case RECEIVE_DATA_B3_IND:
460
461 ApplId = (unsigned) _get_word(&p);
462 MsgLen = _get_slice(&p, card->msgbuf);
463 DataB3Len = _get_slice(&p, card->databuf);
464
465 if (MsgLen < 30) { /* not CAPI 64Bit */
466 memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
467 MsgLen = 30;
468 CAPIMSG_SETLEN(card->msgbuf, 30);
469 }
470 if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
471 printk(KERN_ERR "%s: incoming packet dropped\n",
472 card->name);
473 } else {
474 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
475 memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
476 capi_ctr_handle_message(ctrl, ApplId, skb);
477 }
478 break;
479
480 case RECEIVE_MESSAGE:
481
482 ApplId = (unsigned) _get_word(&p);
483 MsgLen = _get_slice(&p, card->msgbuf);
484 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
485 printk(KERN_ERR "%s: incoming packet dropped\n",
486 card->name);
487 } else {
488 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
1e9c7813
KK		 489 if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF) {
490 spin_lock(&card->lock);
1da177e4 491 capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
1e9c7813
KK		 492 CAPIMSG_NCCI(skb->data),
493 CAPIMSG_MSGID(skb->data));
494 spin_unlock(&card->lock);
495 }
1da177e4
LT		 496 capi_ctr_handle_message(ctrl, ApplId, skb);
497 }
498 break;
499
500 case RECEIVE_NEW_NCCI:
501
502 ApplId = _get_word(&p);
503 NCCI = _get_word(&p);
504 WindowSize = _get_word(&p);
1e9c7813 505 spin_lock(&card->lock);
1da177e4 506 capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
1e9c7813 507 spin_unlock(&card->lock);
1da177e4
LT		 508 break;
509
510 case RECEIVE_FREE_NCCI:
511
512 ApplId = _get_word(&p);
513 NCCI = _get_word(&p);
514
1e9c7813
KK		 515 if (NCCI != 0xffffffff) {
516 spin_lock(&card->lock);
1da177e4 517 capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
1e9c7813
KK		 518 spin_unlock(&card->lock);
519 }
1da177e4
LT		 520 break;
521
522 case RECEIVE_START:
26fb5c58 523#ifdef AVM_B1DMA_POLLDEBUG
1da177e4
LT		 524 printk(KERN_INFO "%s: receive poll\n", card->name);
525#endif
526 if (!suppress_pollack)
527 queue_pollack(card);
528 capi_ctr_resume_output(ctrl);
529 break;
530
531 case RECEIVE_STOP:
532 capi_ctr_suspend_output(ctrl);
533 break;
534
535 case RECEIVE_INIT:
536
537 cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
538 b1_parse_version(cinfo);
539 printk(KERN_INFO "%s: %s-card (%s) now active\n",
540 card->name,
541 cinfo->version[VER_CARDTYPE],
542 cinfo->version[VER_DRIVER]);
543 capi_ctr_ready(ctrl);
544 break;
545
546 case RECEIVE_TASK_READY:
547 ApplId = (unsigned) _get_word(&p);
548 MsgLen = _get_slice(&p, card->msgbuf);
549 card->msgbuf[MsgLen] = 0;
550 while ( MsgLen > 0
551 && ( card->msgbuf[MsgLen-1] == '\n'
552 || card->msgbuf[MsgLen-1] == '\r')) {
553 card->msgbuf[MsgLen-1] = 0;
554 MsgLen--;
555 }
556 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
557 card->name, ApplId, card->msgbuf);
558 break;
559
560 case RECEIVE_DEBUGMSG:
561 MsgLen = _get_slice(&p, card->msgbuf);
562 card->msgbuf[MsgLen] = 0;
563 while ( MsgLen > 0
564 && ( card->msgbuf[MsgLen-1] == '\n'
565 || card->msgbuf[MsgLen-1] == '\r')) {
566 card->msgbuf[MsgLen-1] = 0;
567 MsgLen--;
568 }
569 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
570 break;
571
572 default:
573 printk(KERN_ERR "%s: b1dma_interrupt: 0x%x ???\n",
574 card->name, b1cmd);
575 return;
576 }
577}
578
579/* ------------------------------------------------------------- */
580
581static void b1dma_handle_interrupt(avmcard *card)
582{
583 u32 status;
584 u32 newcsr;
585
586 spin_lock(&card->lock);
587
588 status = b1dma_readl(card, AMCC_INTCSR);
589 if ((status & ANY_S5933_INT) == 0) {
590 spin_unlock(&card->lock);
591 return;
592 }
593
594 newcsr = card->csr | (status & ALL_INT);
595 if (status & TX_TC_INT) newcsr &= ~EN_TX_TC_INT;
596 if (status & RX_TC_INT) newcsr &= ~EN_RX_TC_INT;
597 b1dma_writel(card, newcsr, AMCC_INTCSR);
598
599 if ((status & RX_TC_INT) != 0) {
600 struct avmcard_dmainfo *dma = card->dma;
601 u32 rxlen;
602 if (card->dma->recvlen == 0) {
603 rxlen = b1dma_readl(card, AMCC_RXLEN);
604 if (rxlen == 0) {
605 dma->recvlen = *((u32 *)dma->recvbuf.dmabuf);
606 rxlen = (dma->recvlen + 3) & ~3;
607 b1dma_writel(card, dma->recvbuf.dmaaddr+4, AMCC_RXPTR);
608 b1dma_writel(card, rxlen, AMCC_RXLEN);
26fb5c58 609#ifdef AVM_B1DMA_DEBUG
1da177e4
LT		 610 } else {
611 printk(KERN_ERR "%s: rx not complete (%d).\n",
612 card->name, rxlen);
613#endif
614 }
615 } else {
616 spin_unlock(&card->lock);
617 b1dma_handle_rx(card);
618 dma->recvlen = 0;
619 spin_lock(&card->lock);
620 b1dma_writel(card, dma->recvbuf.dmaaddr, AMCC_RXPTR);
621 b1dma_writel(card, 4, AMCC_RXLEN);
622 }
623 }
624
625 if ((status & TX_TC_INT) != 0) {
626 if (skb_queue_empty(&card->dma->send_queue))
627 card->csr &= ~EN_TX_TC_INT;
628 else
629 b1dma_dispatch_tx(card);
630 }
631 b1dma_writel(card, card->csr, AMCC_INTCSR);
632
633 spin_unlock(&card->lock);
634}
635
7d12e780 636irqreturn_t b1dma_interrupt(int interrupt, void *devptr)
1da177e4
LT		 637{
638 avmcard *card = devptr;
639
640 b1dma_handle_interrupt(card);
641 return IRQ_HANDLED;
642}
643
644/* ------------------------------------------------------------- */
645
646static int b1dma_loaded(avmcard *card)
647{
648 unsigned long stop;
649 unsigned char ans;
650 unsigned long tout = 2;
651 unsigned int base = card->port;
652
653 for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
654 if (b1_tx_empty(base))
655 break;
656 }
657 if (!b1_tx_empty(base)) {
658 printk(KERN_ERR "%s: b1dma_loaded: tx err, corrupted t4 file ?\n",
659 card->name);
660 return 0;
661 }
662 b1_put_byte(base, SEND_POLLACK);
663 for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
664 if (b1_rx_full(base)) {
665 if ((ans = b1_get_byte(base)) == RECEIVE_POLLDWORD) {
666 return 1;
667 }
668 printk(KERN_ERR "%s: b1dma_loaded: got 0x%x, firmware not running in dword mode\n", card->name, ans);
669 return 0;
670 }
671 }
672 printk(KERN_ERR "%s: b1dma_loaded: firmware not running\n", card->name);
673 return 0;
674}
675
676/* ------------------------------------------------------------- */
677
678static void b1dma_send_init(avmcard *card)
679{
680 struct sk_buff *skb;
681 void *p;
682
683 skb = alloc_skb(15, GFP_ATOMIC);
684 if (!skb) {
685 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
686 card->name);
687 return;
688 }
689 p = skb->data;
690 _put_byte(&p, 0);
691 _put_byte(&p, 0);
692 _put_byte(&p, SEND_INIT);
693 _put_word(&p, CAPI_MAXAPPL);
694 _put_word(&p, AVM_NCCI_PER_CHANNEL*30);
695 _put_word(&p, card->cardnr - 1);
696 skb_put(skb, (u8 *)p - (u8 *)skb->data);
697
698 b1dma_queue_tx(card, skb);
699}
700
701int b1dma_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
702{
703 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
704 avmcard *card = cinfo->card;
705 int retval;
706
707 b1dma_reset(card);
708
709 if ((retval = b1_load_t4file(card, &data->firmware))) {
710 b1dma_reset(card);
711 printk(KERN_ERR "%s: failed to load t4file!!\n",
712 card->name);
713 return retval;
714 }
715
716 if (data->configuration.len > 0 && data->configuration.data) {
717 if ((retval = b1_load_config(card, &data->configuration))) {
718 b1dma_reset(card);
719 printk(KERN_ERR "%s: failed to load config!!\n",
720 card->name);
721 return retval;
722 }
723 }
724
725 if (!b1dma_loaded(card)) {
726 b1dma_reset(card);
727 printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
728 return -EIO;
729 }
730
731 card->csr = AVM_FLAG;
732 b1dma_writel(card, card->csr, AMCC_INTCSR);
733 b1dma_writel(card, EN_A2P_TRANSFERS|EN_P2A_TRANSFERS|A2P_HI_PRIORITY|
734 P2A_HI_PRIORITY|RESET_A2P_FLAGS|RESET_P2A_FLAGS,
735 AMCC_MCSR);
736 t1outp(card->port, 0x07, 0x30);
737 t1outp(card->port, 0x10, 0xF0);
738
739 card->dma->recvlen = 0;
740 b1dma_writel(card, card->dma->recvbuf.dmaaddr, AMCC_RXPTR);
741 b1dma_writel(card, 4, AMCC_RXLEN);
742 card->csr |= EN_RX_TC_INT;
743 b1dma_writel(card, card->csr, AMCC_INTCSR);
744
745 b1dma_send_init(card);
746
747 return 0;
748}
749
750void b1dma_reset_ctr(struct capi_ctr *ctrl)
751{
752 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
753 avmcard *card = cinfo->card;
754 unsigned long flags;
755
756 spin_lock_irqsave(&card->lock, flags);
757 b1dma_reset(card);
1da177e4
LT		 758
759 memset(cinfo->version, 0, sizeof(cinfo->version));
760 capilib_release(&cinfo->ncci_head);
1e9c7813 761 spin_unlock_irqrestore(&card->lock, flags);
4e329972 762 capi_ctr_down(ctrl);
1da177e4
LT		 763}
764
765/* ------------------------------------------------------------- */
766
767void b1dma_register_appl(struct capi_ctr *ctrl,
768 u16 appl,
769 capi_register_params *rp)
770{
771 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
772 avmcard *card = cinfo->card;
773 struct sk_buff *skb;
774 int want = rp->level3cnt;
775 int nconn;
776 void *p;
777
778 if (want > 0) nconn = want;
779 else nconn = ctrl->profile.nbchannel * -want;
780 if (nconn == 0) nconn = ctrl->profile.nbchannel;
781
782 skb = alloc_skb(23, GFP_ATOMIC);
783 if (!skb) {
784 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
785 card->name);
786 return;
787 }
788 p = skb->data;
789 _put_byte(&p, 0);
790 _put_byte(&p, 0);
791 _put_byte(&p, SEND_REGISTER);
792 _put_word(&p, appl);
793 _put_word(&p, 1024 * (nconn+1));
794 _put_word(&p, nconn);
795 _put_word(&p, rp->datablkcnt);
796 _put_word(&p, rp->datablklen);
797 skb_put(skb, (u8 *)p - (u8 *)skb->data);
798
799 b1dma_queue_tx(card, skb);
800}
801
802/* ------------------------------------------------------------- */
803
804void b1dma_release_appl(struct capi_ctr *ctrl, u16 appl)
805{
806 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
807 avmcard *card = cinfo->card;
808 struct sk_buff *skb;
809 void *p;
1e9c7813 810 unsigned long flags;
1da177e4 811
1e9c7813 812 spin_lock_irqsave(&card->lock, flags);
1da177e4 813 capilib_release_appl(&cinfo->ncci_head, appl);
1e9c7813 814 spin_unlock_irqrestore(&card->lock, flags);
1da177e4
LT		 815
816 skb = alloc_skb(7, GFP_ATOMIC);
817 if (!skb) {
818 printk(KERN_CRIT "%s: no memory, lost release appl.\n",
819 card->name);
820 return;
821 }
822 p = skb->data;
823 _put_byte(&p, 0);
824 _put_byte(&p, 0);
825 _put_byte(&p, SEND_RELEASE);
826 _put_word(&p, appl);
827
828 skb_put(skb, (u8 *)p - (u8 *)skb->data);
829
830 b1dma_queue_tx(card, skb);
831}
832
833/* ------------------------------------------------------------- */
834
835u16 b1dma_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
836{
837 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
838 avmcard *card = cinfo->card;
839 u16 retval = CAPI_NOERROR;
840
841 if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
1e9c7813
KK		 842 unsigned long flags;
843 spin_lock_irqsave(&card->lock, flags);
1da177e4
LT		 844 retval = capilib_data_b3_req(&cinfo->ncci_head,
845 CAPIMSG_APPID(skb->data),
846 CAPIMSG_NCCI(skb->data),
847 CAPIMSG_MSGID(skb->data));
1e9c7813 848 spin_unlock_irqrestore(&card->lock, flags);
1da177e4
LT		 849 }
850 if (retval == CAPI_NOERROR)
851 b1dma_queue_tx(card, skb);
852
853 return retval;
854}
855
856/* ------------------------------------------------------------- */
857
858int b1dmactl_read_proc(char *page, char **start, off_t off,
859 int count, int *eof, struct capi_ctr *ctrl)
860{
861 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
862 avmcard *card = cinfo->card;
863 u8 flag;
864 int len = 0;
865 char *s;
866 u32 txoff, txlen, rxoff, rxlen, csr;
867 unsigned long flags;
868
869 len += sprintf(page+len, "%-16s %s\n", "name", card->name);
870 len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
871 len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
872 len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase);
873 switch (card->cardtype) {
874 case avm_b1isa: s = "B1 ISA"; break;
875 case avm_b1pci: s = "B1 PCI"; break;
876 case avm_b1pcmcia: s = "B1 PCMCIA"; break;
877 case avm_m1: s = "M1"; break;
878 case avm_m2: s = "M2"; break;
879 case avm_t1isa: s = "T1 ISA (HEMA)"; break;
880 case avm_t1pci: s = "T1 PCI"; break;
881 case avm_c4: s = "C4"; break;
882 case avm_c2: s = "C2"; break;
883 default: s = "???"; break;
884 }
885 len += sprintf(page+len, "%-16s %s\n", "type", s);
8e44b29d 886 if ((s = cinfo->version[VER_DRIVER]) != NULL)
1da177e4 887 len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
8e44b29d 888 if ((s = cinfo->version[VER_CARDTYPE]) != NULL)
1da177e4 889 len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
8e44b29d 890 if ((s = cinfo->version[VER_SERIAL]) != NULL)
1da177e4
LT		 891 len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
892
893 if (card->cardtype != avm_m1) {
894 flag = ((u8 *)(ctrl->profile.manu))[3];
895 if (flag)
896 len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n",
897 "protocol",
898 (flag & 0x01) ? " DSS1" : "",
899 (flag & 0x02) ? " CT1" : "",
900 (flag & 0x04) ? " VN3" : "",
901 (flag & 0x08) ? " NI1" : "",
902 (flag & 0x10) ? " AUSTEL" : "",
903 (flag & 0x20) ? " ESS" : "",
904 (flag & 0x40) ? " 1TR6" : ""
905 );
906 }
907 if (card->cardtype != avm_m1) {
908 flag = ((u8 *)(ctrl->profile.manu))[5];
909 if (flag)
910 len += sprintf(page+len, "%-16s%s%s%s%s\n",
911 "linetype",
912 (flag & 0x01) ? " point to point" : "",
913 (flag & 0x02) ? " point to multipoint" : "",
914 (flag & 0x08) ? " leased line without D-channel" : "",
915 (flag & 0x04) ? " leased line with D-channel" : ""
916 );
917 }
918 len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
919
920
921 spin_lock_irqsave(&card->lock, flags);
922
923 txoff = (dma_addr_t)b1dma_readl(card, AMCC_TXPTR)-card->dma->sendbuf.dmaaddr;
924 txlen = b1dma_readl(card, AMCC_TXLEN);
925
926 rxoff = (dma_addr_t)b1dma_readl(card, AMCC_RXPTR)-card->dma->recvbuf.dmaaddr;
927 rxlen = b1dma_readl(card, AMCC_RXLEN);
928
929 csr = b1dma_readl(card, AMCC_INTCSR);
930
931 spin_unlock_irqrestore(&card->lock, flags);
932
933 len += sprintf(page+len, "%-16s 0x%lx\n",
934 "csr (cached)", (unsigned long)card->csr);
935 len += sprintf(page+len, "%-16s 0x%lx\n",
936 "csr", (unsigned long)csr);
937 len += sprintf(page+len, "%-16s %lu\n",
938 "txoff", (unsigned long)txoff);
939 len += sprintf(page+len, "%-16s %lu\n",
940 "txlen", (unsigned long)txlen);
941 len += sprintf(page+len, "%-16s %lu\n",
942 "rxoff", (unsigned long)rxoff);
943 len += sprintf(page+len, "%-16s %lu\n",
944 "rxlen", (unsigned long)rxlen);
945
946 if (off+count >= len)
947 *eof = 1;
948 if (len < off)
949 return 0;
950 *start = page + off;
951 return ((count < len-off) ? count : len-off);
952}
953
954/* ------------------------------------------------------------- */
955
956EXPORT_SYMBOL(b1dma_reset);
957EXPORT_SYMBOL(t1pci_detect);
958EXPORT_SYMBOL(b1pciv4_detect);
959EXPORT_SYMBOL(b1dma_interrupt);
960
961EXPORT_SYMBOL(b1dma_load_firmware);
962EXPORT_SYMBOL(b1dma_reset_ctr);
963EXPORT_SYMBOL(b1dma_register_appl);
964EXPORT_SYMBOL(b1dma_release_appl);
965EXPORT_SYMBOL(b1dma_send_message);
966EXPORT_SYMBOL(b1dmactl_read_proc);
967
08e51533 968static int __init b1dma_init(void)
1da177e4
LT		 969{
970 char *p;
971 char rev[32];
972
8e44b29d 973 if ((p = strchr(revision, ':')) != NULL && p[1]) {
1da177e4 974 strlcpy(rev, p + 2, sizeof(rev));
8e44b29d 975 if ((p = strchr(rev, '$')) != NULL && p > rev)
1da177e4
LT		 976 *(p-1) = 0;
977 } else
978 strcpy(rev, "1.0");
979
980 printk(KERN_INFO "b1dma: revision %s\n", rev);
981
982 return 0;
983}
984
08e51533 985static void __exit b1dma_exit(void)
1da177e4
LT		 986{
987}
988
989module_init(b1dma_init);
990module_exit(b1dma_exit);
Linux kernel - Deliverables
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