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[PATCH] ISDN: Fix typo "CONFIG_HISAX_QUADRO" -> "CONFIG_HISAX_SCT_QUADRO".
[mirror_ubuntu-bionic-kernel.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
32#undef CONFIG_B1DMA_DEBUG
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;
394#ifdef CONFIG_B1DMA_DEBUG
395 printk(KERN_DEBUG "tx: put msg len=%d\n", txlen);
396#endif
397 } else {
398 txlen = skb->len-2;
399#ifdef CONFIG_B1DMA_POLLDEBUG
400 if (skb->data[2] == SEND_POLLACK)
401 printk(KERN_INFO "%s: send ack\n", card->name);
402#endif
403#ifdef CONFIG_B1DMA_DEBUG
404 printk(KERN_DEBUG "tx: put 0x%x len=%d\n",
405 skb->data[2], txlen);
406#endif
407 memcpy(dma->sendbuf.dmabuf, skb->data+2, skb->len-2);
408 }
409 txlen = (txlen + 3) & ~3;
410
411 b1dma_writel(card, dma->sendbuf.dmaaddr, AMCC_TXPTR);
412 b1dma_writel(card, txlen, AMCC_TXLEN);
413
414 card->csr |= EN_TX_TC_INT;
415
416 dev_kfree_skb_any(skb);
417}
418
419/* ------------------------------------------------------------- */
420
421static void queue_pollack(avmcard *card)
422{
423 struct sk_buff *skb;
424 void *p;
425
426 skb = alloc_skb(3, GFP_ATOMIC);
427 if (!skb) {
428 printk(KERN_CRIT "%s: no memory, lost poll ack\n",
429 card->name);
430 return;
431 }
432 p = skb->data;
433 _put_byte(&p, 0);
434 _put_byte(&p, 0);
435 _put_byte(&p, SEND_POLLACK);
436 skb_put(skb, (u8 *)p - (u8 *)skb->data);
437
438 b1dma_queue_tx(card, skb);
439}
440
441/* ------------------------------------------------------------- */
442
443static void b1dma_handle_rx(avmcard *card)
444{
445 avmctrl_info *cinfo = &card->ctrlinfo[0];
446 avmcard_dmainfo *dma = card->dma;
447 struct capi_ctr *ctrl = &cinfo->capi_ctrl;
448 struct sk_buff *skb;
449 void *p = dma->recvbuf.dmabuf+4;
450 u32 ApplId, MsgLen, DataB3Len, NCCI, WindowSize;
451 u8 b1cmd = _get_byte(&p);
452
453#ifdef CONFIG_B1DMA_DEBUG
454 printk(KERN_DEBUG "rx: 0x%x %lu\n", b1cmd, (unsigned long)dma->recvlen);
455#endif
456
457 switch (b1cmd) {
458 case RECEIVE_DATA_B3_IND:
459
460 ApplId = (unsigned) _get_word(&p);
461 MsgLen = _get_slice(&p, card->msgbuf);
462 DataB3Len = _get_slice(&p, card->databuf);
463
464 if (MsgLen < 30) { /* not CAPI 64Bit */
465 memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
466 MsgLen = 30;
467 CAPIMSG_SETLEN(card->msgbuf, 30);
468 }
469 if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
470 printk(KERN_ERR "%s: incoming packet dropped\n",
471 card->name);
472 } else {
473 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
474 memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
475 capi_ctr_handle_message(ctrl, ApplId, skb);
476 }
477 break;
478
479 case RECEIVE_MESSAGE:
480
481 ApplId = (unsigned) _get_word(&p);
482 MsgLen = _get_slice(&p, card->msgbuf);
483 if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
484 printk(KERN_ERR "%s: incoming packet dropped\n",
485 card->name);
486 } else {
487 memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
488 if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_CONF)
489 capilib_data_b3_conf(&cinfo->ncci_head, ApplId,
490 CAPIMSG_NCCI(skb->data),
491 CAPIMSG_MSGID(skb->data));
492
493 capi_ctr_handle_message(ctrl, ApplId, skb);
494 }
495 break;
496
497 case RECEIVE_NEW_NCCI:
498
499 ApplId = _get_word(&p);
500 NCCI = _get_word(&p);
501 WindowSize = _get_word(&p);
502
503 capilib_new_ncci(&cinfo->ncci_head, ApplId, NCCI, WindowSize);
504
505 break;
506
507 case RECEIVE_FREE_NCCI:
508
509 ApplId = _get_word(&p);
510 NCCI = _get_word(&p);
511
512 if (NCCI != 0xffffffff)
513 capilib_free_ncci(&cinfo->ncci_head, ApplId, NCCI);
514
515 break;
516
517 case RECEIVE_START:
518#ifdef CONFIG_B1DMA_POLLDEBUG
519 printk(KERN_INFO "%s: receive poll\n", card->name);
520#endif
521 if (!suppress_pollack)
522 queue_pollack(card);
523 capi_ctr_resume_output(ctrl);
524 break;
525
526 case RECEIVE_STOP:
527 capi_ctr_suspend_output(ctrl);
528 break;
529
530 case RECEIVE_INIT:
531
532 cinfo->versionlen = _get_slice(&p, cinfo->versionbuf);
533 b1_parse_version(cinfo);
534 printk(KERN_INFO "%s: %s-card (%s) now active\n",
535 card->name,
536 cinfo->version[VER_CARDTYPE],
537 cinfo->version[VER_DRIVER]);
538 capi_ctr_ready(ctrl);
539 break;
540
541 case RECEIVE_TASK_READY:
542 ApplId = (unsigned) _get_word(&p);
543 MsgLen = _get_slice(&p, card->msgbuf);
544 card->msgbuf[MsgLen] = 0;
545 while ( MsgLen > 0
546 && ( card->msgbuf[MsgLen-1] == '\n'
547 || card->msgbuf[MsgLen-1] == '\r')) {
548 card->msgbuf[MsgLen-1] = 0;
549 MsgLen--;
550 }
551 printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
552 card->name, ApplId, card->msgbuf);
553 break;
554
555 case RECEIVE_DEBUGMSG:
556 MsgLen = _get_slice(&p, card->msgbuf);
557 card->msgbuf[MsgLen] = 0;
558 while ( MsgLen > 0
559 && ( card->msgbuf[MsgLen-1] == '\n'
560 || card->msgbuf[MsgLen-1] == '\r')) {
561 card->msgbuf[MsgLen-1] = 0;
562 MsgLen--;
563 }
564 printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
565 break;
566
567 default:
568 printk(KERN_ERR "%s: b1dma_interrupt: 0x%x ???\n",
569 card->name, b1cmd);
570 return;
571 }
572}
573
574/* ------------------------------------------------------------- */
575
576static void b1dma_handle_interrupt(avmcard *card)
577{
578 u32 status;
579 u32 newcsr;
580
581 spin_lock(&card->lock);
582
583 status = b1dma_readl(card, AMCC_INTCSR);
584 if ((status & ANY_S5933_INT) == 0) {
585 spin_unlock(&card->lock);
586 return;
587 }
588
589 newcsr = card->csr | (status & ALL_INT);
590 if (status & TX_TC_INT) newcsr &= ~EN_TX_TC_INT;
591 if (status & RX_TC_INT) newcsr &= ~EN_RX_TC_INT;
592 b1dma_writel(card, newcsr, AMCC_INTCSR);
593
594 if ((status & RX_TC_INT) != 0) {
595 struct avmcard_dmainfo *dma = card->dma;
596 u32 rxlen;
597 if (card->dma->recvlen == 0) {
598 rxlen = b1dma_readl(card, AMCC_RXLEN);
599 if (rxlen == 0) {
600 dma->recvlen = *((u32 *)dma->recvbuf.dmabuf);
601 rxlen = (dma->recvlen + 3) & ~3;
602 b1dma_writel(card, dma->recvbuf.dmaaddr+4, AMCC_RXPTR);
603 b1dma_writel(card, rxlen, AMCC_RXLEN);
604#ifdef CONFIG_B1DMA_DEBUG
605 } else {
606 printk(KERN_ERR "%s: rx not complete (%d).\n",
607 card->name, rxlen);
608#endif
609 }
610 } else {
611 spin_unlock(&card->lock);
612 b1dma_handle_rx(card);
613 dma->recvlen = 0;
614 spin_lock(&card->lock);
615 b1dma_writel(card, dma->recvbuf.dmaaddr, AMCC_RXPTR);
616 b1dma_writel(card, 4, AMCC_RXLEN);
617 }
618 }
619
620 if ((status & TX_TC_INT) != 0) {
621 if (skb_queue_empty(&card->dma->send_queue))
622 card->csr &= ~EN_TX_TC_INT;
623 else
624 b1dma_dispatch_tx(card);
625 }
626 b1dma_writel(card, card->csr, AMCC_INTCSR);
627
628 spin_unlock(&card->lock);
629}
630
7d12e780 631irqreturn_t b1dma_interrupt(int interrupt, void *devptr)
1da177e4
LT		 632{
633 avmcard *card = devptr;
634
635 b1dma_handle_interrupt(card);
636 return IRQ_HANDLED;
637}
638
639/* ------------------------------------------------------------- */
640
641static int b1dma_loaded(avmcard *card)
642{
643 unsigned long stop;
644 unsigned char ans;
645 unsigned long tout = 2;
646 unsigned int base = card->port;
647
648 for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
649 if (b1_tx_empty(base))
650 break;
651 }
652 if (!b1_tx_empty(base)) {
653 printk(KERN_ERR "%s: b1dma_loaded: tx err, corrupted t4 file ?\n",
654 card->name);
655 return 0;
656 }
657 b1_put_byte(base, SEND_POLLACK);
658 for (stop = jiffies + tout * HZ; time_before(jiffies, stop);) {
659 if (b1_rx_full(base)) {
660 if ((ans = b1_get_byte(base)) == RECEIVE_POLLDWORD) {
661 return 1;
662 }
663 printk(KERN_ERR "%s: b1dma_loaded: got 0x%x, firmware not running in dword mode\n", card->name, ans);
664 return 0;
665 }
666 }
667 printk(KERN_ERR "%s: b1dma_loaded: firmware not running\n", card->name);
668 return 0;
669}
670
671/* ------------------------------------------------------------- */
672
673static void b1dma_send_init(avmcard *card)
674{
675 struct sk_buff *skb;
676 void *p;
677
678 skb = alloc_skb(15, GFP_ATOMIC);
679 if (!skb) {
680 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
681 card->name);
682 return;
683 }
684 p = skb->data;
685 _put_byte(&p, 0);
686 _put_byte(&p, 0);
687 _put_byte(&p, SEND_INIT);
688 _put_word(&p, CAPI_MAXAPPL);
689 _put_word(&p, AVM_NCCI_PER_CHANNEL*30);
690 _put_word(&p, card->cardnr - 1);
691 skb_put(skb, (u8 *)p - (u8 *)skb->data);
692
693 b1dma_queue_tx(card, skb);
694}
695
696int b1dma_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
697{
698 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
699 avmcard *card = cinfo->card;
700 int retval;
701
702 b1dma_reset(card);
703
704 if ((retval = b1_load_t4file(card, &data->firmware))) {
705 b1dma_reset(card);
706 printk(KERN_ERR "%s: failed to load t4file!!\n",
707 card->name);
708 return retval;
709 }
710
711 if (data->configuration.len > 0 && data->configuration.data) {
712 if ((retval = b1_load_config(card, &data->configuration))) {
713 b1dma_reset(card);
714 printk(KERN_ERR "%s: failed to load config!!\n",
715 card->name);
716 return retval;
717 }
718 }
719
720 if (!b1dma_loaded(card)) {
721 b1dma_reset(card);
722 printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
723 return -EIO;
724 }
725
726 card->csr = AVM_FLAG;
727 b1dma_writel(card, card->csr, AMCC_INTCSR);
728 b1dma_writel(card, EN_A2P_TRANSFERS|EN_P2A_TRANSFERS|A2P_HI_PRIORITY|
729 P2A_HI_PRIORITY|RESET_A2P_FLAGS|RESET_P2A_FLAGS,
730 AMCC_MCSR);
731 t1outp(card->port, 0x07, 0x30);
732 t1outp(card->port, 0x10, 0xF0);
733
734 card->dma->recvlen = 0;
735 b1dma_writel(card, card->dma->recvbuf.dmaaddr, AMCC_RXPTR);
736 b1dma_writel(card, 4, AMCC_RXLEN);
737 card->csr |= EN_RX_TC_INT;
738 b1dma_writel(card, card->csr, AMCC_INTCSR);
739
740 b1dma_send_init(card);
741
742 return 0;
743}
744
745void b1dma_reset_ctr(struct capi_ctr *ctrl)
746{
747 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
748 avmcard *card = cinfo->card;
749 unsigned long flags;
750
751 spin_lock_irqsave(&card->lock, flags);
752 b1dma_reset(card);
753 spin_unlock_irqrestore(&card->lock, flags);
754
755 memset(cinfo->version, 0, sizeof(cinfo->version));
756 capilib_release(&cinfo->ncci_head);
757 capi_ctr_reseted(ctrl);
758}
759
760/* ------------------------------------------------------------- */
761
762void b1dma_register_appl(struct capi_ctr *ctrl,
763 u16 appl,
764 capi_register_params *rp)
765{
766 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
767 avmcard *card = cinfo->card;
768 struct sk_buff *skb;
769 int want = rp->level3cnt;
770 int nconn;
771 void *p;
772
773 if (want > 0) nconn = want;
774 else nconn = ctrl->profile.nbchannel * -want;
775 if (nconn == 0) nconn = ctrl->profile.nbchannel;
776
777 skb = alloc_skb(23, GFP_ATOMIC);
778 if (!skb) {
779 printk(KERN_CRIT "%s: no memory, lost register appl.\n",
780 card->name);
781 return;
782 }
783 p = skb->data;
784 _put_byte(&p, 0);
785 _put_byte(&p, 0);
786 _put_byte(&p, SEND_REGISTER);
787 _put_word(&p, appl);
788 _put_word(&p, 1024 * (nconn+1));
789 _put_word(&p, nconn);
790 _put_word(&p, rp->datablkcnt);
791 _put_word(&p, rp->datablklen);
792 skb_put(skb, (u8 *)p - (u8 *)skb->data);
793
794 b1dma_queue_tx(card, skb);
795}
796
797/* ------------------------------------------------------------- */
798
799void b1dma_release_appl(struct capi_ctr *ctrl, u16 appl)
800{
801 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
802 avmcard *card = cinfo->card;
803 struct sk_buff *skb;
804 void *p;
805
806 capilib_release_appl(&cinfo->ncci_head, appl);
807
808 skb = alloc_skb(7, GFP_ATOMIC);
809 if (!skb) {
810 printk(KERN_CRIT "%s: no memory, lost release appl.\n",
811 card->name);
812 return;
813 }
814 p = skb->data;
815 _put_byte(&p, 0);
816 _put_byte(&p, 0);
817 _put_byte(&p, SEND_RELEASE);
818 _put_word(&p, appl);
819
820 skb_put(skb, (u8 *)p - (u8 *)skb->data);
821
822 b1dma_queue_tx(card, skb);
823}
824
825/* ------------------------------------------------------------- */
826
827u16 b1dma_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
828{
829 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
830 avmcard *card = cinfo->card;
831 u16 retval = CAPI_NOERROR;
832
833 if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
834 retval = capilib_data_b3_req(&cinfo->ncci_head,
835 CAPIMSG_APPID(skb->data),
836 CAPIMSG_NCCI(skb->data),
837 CAPIMSG_MSGID(skb->data));
838 }
839 if (retval == CAPI_NOERROR)
840 b1dma_queue_tx(card, skb);
841
842 return retval;
843}
844
845/* ------------------------------------------------------------- */
846
847int b1dmactl_read_proc(char *page, char **start, off_t off,
848 int count, int *eof, struct capi_ctr *ctrl)
849{
850 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
851 avmcard *card = cinfo->card;
852 u8 flag;
853 int len = 0;
854 char *s;
855 u32 txoff, txlen, rxoff, rxlen, csr;
856 unsigned long flags;
857
858 len += sprintf(page+len, "%-16s %s\n", "name", card->name);
859 len += sprintf(page+len, "%-16s 0x%x\n", "io", card->port);
860 len += sprintf(page+len, "%-16s %d\n", "irq", card->irq);
861 len += sprintf(page+len, "%-16s 0x%lx\n", "membase", card->membase);
862 switch (card->cardtype) {
863 case avm_b1isa: s = "B1 ISA"; break;
864 case avm_b1pci: s = "B1 PCI"; break;
865 case avm_b1pcmcia: s = "B1 PCMCIA"; break;
866 case avm_m1: s = "M1"; break;
867 case avm_m2: s = "M2"; break;
868 case avm_t1isa: s = "T1 ISA (HEMA)"; break;
869 case avm_t1pci: s = "T1 PCI"; break;
870 case avm_c4: s = "C4"; break;
871 case avm_c2: s = "C2"; break;
872 default: s = "???"; break;
873 }
874 len += sprintf(page+len, "%-16s %s\n", "type", s);
875 if ((s = cinfo->version[VER_DRIVER]) != 0)
876 len += sprintf(page+len, "%-16s %s\n", "ver_driver", s);
877 if ((s = cinfo->version[VER_CARDTYPE]) != 0)
878 len += sprintf(page+len, "%-16s %s\n", "ver_cardtype", s);
879 if ((s = cinfo->version[VER_SERIAL]) != 0)
880 len += sprintf(page+len, "%-16s %s\n", "ver_serial", s);
881
882 if (card->cardtype != avm_m1) {
883 flag = ((u8 *)(ctrl->profile.manu))[3];
884 if (flag)
885 len += sprintf(page+len, "%-16s%s%s%s%s%s%s%s\n",
886 "protocol",
887 (flag & 0x01) ? " DSS1" : "",
888 (flag & 0x02) ? " CT1" : "",
889 (flag & 0x04) ? " VN3" : "",
890 (flag & 0x08) ? " NI1" : "",
891 (flag & 0x10) ? " AUSTEL" : "",
892 (flag & 0x20) ? " ESS" : "",
893 (flag & 0x40) ? " 1TR6" : ""
894 );
895 }
896 if (card->cardtype != avm_m1) {
897 flag = ((u8 *)(ctrl->profile.manu))[5];
898 if (flag)
899 len += sprintf(page+len, "%-16s%s%s%s%s\n",
900 "linetype",
901 (flag & 0x01) ? " point to point" : "",
902 (flag & 0x02) ? " point to multipoint" : "",
903 (flag & 0x08) ? " leased line without D-channel" : "",
904 (flag & 0x04) ? " leased line with D-channel" : ""
905 );
906 }
907 len += sprintf(page+len, "%-16s %s\n", "cardname", cinfo->cardname);
908
909
910 spin_lock_irqsave(&card->lock, flags);
911
912 txoff = (dma_addr_t)b1dma_readl(card, AMCC_TXPTR)-card->dma->sendbuf.dmaaddr;
913 txlen = b1dma_readl(card, AMCC_TXLEN);
914
915 rxoff = (dma_addr_t)b1dma_readl(card, AMCC_RXPTR)-card->dma->recvbuf.dmaaddr;
916 rxlen = b1dma_readl(card, AMCC_RXLEN);
917
918 csr = b1dma_readl(card, AMCC_INTCSR);
919
920 spin_unlock_irqrestore(&card->lock, flags);
921
922 len += sprintf(page+len, "%-16s 0x%lx\n",
923 "csr (cached)", (unsigned long)card->csr);
924 len += sprintf(page+len, "%-16s 0x%lx\n",
925 "csr", (unsigned long)csr);
926 len += sprintf(page+len, "%-16s %lu\n",
927 "txoff", (unsigned long)txoff);
928 len += sprintf(page+len, "%-16s %lu\n",
929 "txlen", (unsigned long)txlen);
930 len += sprintf(page+len, "%-16s %lu\n",
931 "rxoff", (unsigned long)rxoff);
932 len += sprintf(page+len, "%-16s %lu\n",
933 "rxlen", (unsigned long)rxlen);
934
935 if (off+count >= len)
936 *eof = 1;
937 if (len < off)
938 return 0;
939 *start = page + off;
940 return ((count < len-off) ? count : len-off);
941}
942
943/* ------------------------------------------------------------- */
944
945EXPORT_SYMBOL(b1dma_reset);
946EXPORT_SYMBOL(t1pci_detect);
947EXPORT_SYMBOL(b1pciv4_detect);
948EXPORT_SYMBOL(b1dma_interrupt);
949
950EXPORT_SYMBOL(b1dma_load_firmware);
951EXPORT_SYMBOL(b1dma_reset_ctr);
952EXPORT_SYMBOL(b1dma_register_appl);
953EXPORT_SYMBOL(b1dma_release_appl);
954EXPORT_SYMBOL(b1dma_send_message);
955EXPORT_SYMBOL(b1dmactl_read_proc);
956
08e51533 957static int __init b1dma_init(void)
1da177e4
LT		 958{
959 char *p;
960 char rev[32];
961
962 if ((p = strchr(revision, ':')) != 0 && p[1]) {
963 strlcpy(rev, p + 2, sizeof(rev));
964 if ((p = strchr(rev, '$')) != 0 && p > rev)
965 *(p-1) = 0;
966 } else
967 strcpy(rev, "1.0");
968
969 printk(KERN_INFO "b1dma: revision %s\n", rev);
970
971 return 0;
972}
973
08e51533 974static void __exit b1dma_exit(void)
1da177e4
LT		 975{
976}
977
978module_init(b1dma_init);
979module_exit(b1dma_exit);
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