2 * w6692.c mISDN driver for Winbond w6692 based cards
4 * Author Karsten Keil <kkeil@suse.de>
5 * based on the w6692 I4L driver from Petr Novak <petr.novak@i.cz>
7 * Copyright 2009 by Karsten Keil <keil@isdn4linux.de>
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.
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.
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.
24 #include <linux/module.h>
25 #include <linux/pci.h>
26 #include <linux/delay.h>
27 #include <linux/mISDNhw.h>
28 #include <linux/slab.h>
31 #define W6692_REV "2.0"
33 #define DBUSY_TIMER_VALUE 80
41 /* private data in the PCI devices list */
47 static const struct w6692map w6692_map[] =
49 {W6692_ASUS, "Dynalink/AsusCom IS64PH"},
50 {W6692_WINBOND, "Winbond W6692"},
51 {W6692_USR, "USR W6692"}
54 #ifndef PCI_VENDOR_ID_USR
55 #define PCI_VENDOR_ID_USR 0x16ec
56 #define PCI_DEVICE_ID_USR_6692 0x3409
62 struct timer_list timer;
67 struct list_head list;
69 char name[MISDN_MAX_IDLEN];
73 u32 fmask; /* feature mask - bit set per card nr */
75 spinlock_t lock; /* hw lock */
81 struct w6692_ch bc[2];
86 static LIST_HEAD(Cards);
87 static DEFINE_RWLOCK(card_lock); /* protect Cards */
95 _set_debug(struct w6692_hw *card)
97 card->dch.debug = debug;
98 card->bc[0].bch.debug = debug;
99 card->bc[1].bch.debug = debug;
103 set_debug(const char *val, struct kernel_param *kp)
106 struct w6692_hw *card;
108 ret = param_set_uint(val, kp);
110 read_lock(&card_lock);
111 list_for_each_entry(card, &Cards, list)
113 read_unlock(&card_lock);
118 MODULE_AUTHOR("Karsten Keil");
119 MODULE_LICENSE("GPL v2");
120 MODULE_VERSION(W6692_REV);
121 module_param_call(debug, set_debug, param_get_uint, &debug, S_IRUGO | S_IWUSR);
122 MODULE_PARM_DESC(debug, "W6692 debug mask");
123 module_param(led, uint, S_IRUGO | S_IWUSR);
124 MODULE_PARM_DESC(led, "W6692 LED support bitmask (one bit per card)");
125 module_param(pots, uint, S_IRUGO | S_IWUSR);
126 MODULE_PARM_DESC(pots, "W6692 POTS support bitmask (one bit per card)");
129 ReadW6692(struct w6692_hw *card, u8 offset)
131 return inb(card->addr + offset);
135 WriteW6692(struct w6692_hw *card, u8 offset, u8 value)
137 outb(value, card->addr + offset);
141 ReadW6692B(struct w6692_ch *bc, u8 offset)
143 return inb(bc->addr + offset);
147 WriteW6692B(struct w6692_ch *bc, u8 offset, u8 value)
149 outb(value, bc->addr + offset);
153 enable_hwirq(struct w6692_hw *card)
155 WriteW6692(card, W_IMASK, card->imask);
159 disable_hwirq(struct w6692_hw *card)
161 WriteW6692(card, W_IMASK, 0xff);
164 static const char *W6692Ver[] = {"V00", "V01", "V10", "V11"};
167 W6692Version(struct w6692_hw *card)
171 val = ReadW6692(card, W_D_RBCH);
172 pr_notice("%s: Winbond W6692 version: %s\n", card->name,
173 W6692Ver[(val >> 6) & 3]);
177 w6692_led_handler(struct w6692_hw *card, int on)
179 if ((!(card->fmask & led)) || card->subtype == W6692_USR)
182 card->xdata &= 0xfb; /* LED ON */
183 WriteW6692(card, W_XDATA, card->xdata);
185 card->xdata |= 0x04; /* LED OFF */
186 WriteW6692(card, W_XDATA, card->xdata);
191 ph_command(struct w6692_hw *card, u8 cmd)
193 pr_debug("%s: ph_command %x\n", card->name, cmd);
194 WriteW6692(card, W_CIX, cmd);
198 W6692_new_ph(struct w6692_hw *card)
200 if (card->state == W_L1CMD_RST)
201 ph_command(card, W_L1CMD_DRC);
202 schedule_event(&card->dch, FLG_PHCHANGE);
206 W6692_ph_bh(struct dchannel *dch)
208 struct w6692_hw *card = dch->hw;
210 switch (card->state) {
213 l1_event(dch->l1, HW_RESET_IND);
217 l1_event(dch->l1, HW_DEACT_CNF);
221 l1_event(dch->l1, HW_DEACT_IND);
225 l1_event(dch->l1, HW_POWERUP_IND);
228 if (dch->state <= 5) {
230 l1_event(dch->l1, ANYSIGNAL);
233 l1_event(dch->l1, LOSTFRAMING);
238 l1_event(dch->l1, INFO2);
242 l1_event(dch->l1, INFO4_P8);
246 l1_event(dch->l1, INFO4_P10);
249 pr_debug("%s: TE unknown state %02x dch state %02x\n",
250 card->name, card->state, dch->state);
253 pr_debug("%s: TE newstate %02x\n", card->name, dch->state);
257 W6692_empty_Dfifo(struct w6692_hw *card, int count)
259 struct dchannel *dch = &card->dch;
262 pr_debug("%s: empty_Dfifo %d\n", card->name, count);
264 dch->rx_skb = mI_alloc_skb(card->dch.maxlen, GFP_ATOMIC);
266 pr_info("%s: D receive out of memory\n", card->name);
267 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK);
271 if ((dch->rx_skb->len + count) >= dch->maxlen) {
272 pr_debug("%s: empty_Dfifo overrun %d\n", card->name,
273 dch->rx_skb->len + count);
274 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK);
277 ptr = skb_put(dch->rx_skb, count);
278 insb(card->addr + W_D_RFIFO, ptr, count);
279 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK);
280 if (debug & DEBUG_HW_DFIFO) {
281 snprintf(card->log, 63, "D-recv %s %d ",
283 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
288 W6692_fill_Dfifo(struct w6692_hw *card)
290 struct dchannel *dch = &card->dch;
293 u8 cmd = W_D_CMDR_XMS;
295 pr_debug("%s: fill_Dfifo\n", card->name);
298 count = dch->tx_skb->len - dch->tx_idx;
301 if (count > W_D_FIFO_THRESH)
302 count = W_D_FIFO_THRESH;
305 ptr = dch->tx_skb->data + dch->tx_idx;
306 dch->tx_idx += count;
307 outsb(card->addr + W_D_XFIFO, ptr, count);
308 WriteW6692(card, W_D_CMDR, cmd);
309 if (test_and_set_bit(FLG_BUSY_TIMER, &dch->Flags)) {
310 pr_debug("%s: fill_Dfifo dbusytimer running\n", card->name);
311 del_timer(&dch->timer);
313 init_timer(&dch->timer);
314 dch->timer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ)/1000);
315 add_timer(&dch->timer);
316 if (debug & DEBUG_HW_DFIFO) {
317 snprintf(card->log, 63, "D-send %s %d ",
319 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
324 d_retransmit(struct w6692_hw *card)
326 struct dchannel *dch = &card->dch;
328 if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
329 del_timer(&dch->timer);
331 if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
332 dchannel_sched_event(dch, D_CLEARBUSY);
334 if (test_bit(FLG_TX_BUSY, &dch->Flags)) {
337 W6692_fill_Dfifo(card);
338 } else if (dch->tx_skb) { /* should not happen */
339 pr_info("%s: %s without TX_BUSY\n", card->name, __func__);
340 test_and_set_bit(FLG_TX_BUSY, &dch->Flags);
342 W6692_fill_Dfifo(card);
344 pr_info("%s: XDU no TX_BUSY\n", card->name);
345 if (get_next_dframe(dch))
346 W6692_fill_Dfifo(card);
351 handle_rxD(struct w6692_hw *card) {
355 stat = ReadW6692(card, W_D_RSTA);
356 if (stat & (W_D_RSTA_RDOV | W_D_RSTA_CRCE | W_D_RSTA_RMB)) {
357 if (stat & W_D_RSTA_RDOV) {
358 pr_debug("%s: D-channel RDOV\n", card->name);
359 #ifdef ERROR_STATISTIC
363 if (stat & W_D_RSTA_CRCE) {
364 pr_debug("%s: D-channel CRC error\n", card->name);
365 #ifdef ERROR_STATISTIC
369 if (stat & W_D_RSTA_RMB) {
370 pr_debug("%s: D-channel ABORT\n", card->name);
371 #ifdef ERROR_STATISTIC
375 if (card->dch.rx_skb)
376 dev_kfree_skb(card->dch.rx_skb);
377 card->dch.rx_skb = NULL;
378 WriteW6692(card, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST);
380 count = ReadW6692(card, W_D_RBCL) & (W_D_FIFO_THRESH - 1);
382 count = W_D_FIFO_THRESH;
383 W6692_empty_Dfifo(card, count);
384 recv_Dchannel(&card->dch);
389 handle_txD(struct w6692_hw *card) {
390 if (test_and_clear_bit(FLG_BUSY_TIMER, &card->dch.Flags))
391 del_timer(&card->dch.timer);
392 if (card->dch.tx_skb && card->dch.tx_idx < card->dch.tx_skb->len) {
393 W6692_fill_Dfifo(card);
395 if (card->dch.tx_skb)
396 dev_kfree_skb(card->dch.tx_skb);
397 if (get_next_dframe(&card->dch))
398 W6692_fill_Dfifo(card);
403 handle_statusD(struct w6692_hw *card)
405 struct dchannel *dch = &card->dch;
408 exval = ReadW6692(card, W_D_EXIR);
410 pr_debug("%s: D_EXIR %02x\n", card->name, exval);
411 if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) {
412 /* Transmit underrun/collision */
413 pr_debug("%s: D-channel underrun/collision\n", card->name);
414 #ifdef ERROR_STATISTIC
419 if (exval & W_D_EXI_RDOV) { /* RDOV */
420 pr_debug("%s: D-channel RDOV\n", card->name);
421 WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST);
423 if (exval & W_D_EXI_TIN2) /* TIN2 - never */
424 pr_debug("%s: spurious TIN2 interrupt\n", card->name);
425 if (exval & W_D_EXI_MOC) { /* MOC - not supported */
426 v1 = ReadW6692(card, W_MOSR);
427 pr_debug("%s: spurious MOC interrupt MOSR %02x\n",
430 if (exval & W_D_EXI_ISC) { /* ISC - Level1 change */
431 cir = ReadW6692(card, W_CIR);
432 pr_debug("%s: ISC CIR %02X\n", card->name, cir);
433 if (cir & W_CIR_ICC) {
434 v1 = cir & W_CIR_COD_MASK;
435 pr_debug("%s: ph_state_change %x -> %x\n", card->name,
438 if (card->fmask & led) {
442 w6692_led_handler(card, 1);
445 w6692_led_handler(card, 0);
451 if (cir & W_CIR_SCC) {
452 v1 = ReadW6692(card, W_SQR);
453 pr_debug("%s: SCC SQR %02X\n", card->name, v1);
456 if (exval & W_D_EXI_WEXP)
457 pr_debug("%s: spurious WEXP interrupt!\n", card->name);
458 if (exval & W_D_EXI_TEXP)
459 pr_debug("%s: spurious TEXP interrupt!\n", card->name);
463 W6692_empty_Bfifo(struct w6692_ch *wch, int count)
465 struct w6692_hw *card = wch->bch.hw;
468 pr_debug("%s: empty_Bfifo %d\n", card->name, count);
469 if (unlikely(wch->bch.state == ISDN_P_NONE)) {
470 pr_debug("%s: empty_Bfifo ISDN_P_NONE\n", card->name);
471 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
473 skb_trim(wch->bch.rx_skb, 0);
476 if (!wch->bch.rx_skb) {
477 wch->bch.rx_skb = mI_alloc_skb(wch->bch.maxlen, GFP_ATOMIC);
478 if (unlikely(!wch->bch.rx_skb)) {
479 pr_info("%s: B receive out of memory\n", card->name);
480 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
485 if (wch->bch.rx_skb->len + count > wch->bch.maxlen) {
486 pr_debug("%s: empty_Bfifo incoming packet too large\n",
488 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
489 skb_trim(wch->bch.rx_skb, 0);
492 ptr = skb_put(wch->bch.rx_skb, count);
493 insb(wch->addr + W_B_RFIFO, ptr, count);
494 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
495 if (debug & DEBUG_HW_DFIFO) {
496 snprintf(card->log, 63, "B%1d-recv %s %d ",
497 wch->bch.nr, card->name, count);
498 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
503 W6692_fill_Bfifo(struct w6692_ch *wch)
505 struct w6692_hw *card = wch->bch.hw;
507 u8 *ptr, cmd = W_B_CMDR_RACT | W_B_CMDR_XMS;
509 pr_debug("%s: fill Bfifo\n", card->name);
510 if (!wch->bch.tx_skb)
512 count = wch->bch.tx_skb->len - wch->bch.tx_idx;
515 ptr = wch->bch.tx_skb->data + wch->bch.tx_idx;
516 if (count > W_B_FIFO_THRESH)
517 count = W_B_FIFO_THRESH;
518 else if (test_bit(FLG_HDLC, &wch->bch.Flags))
521 pr_debug("%s: fill Bfifo%d/%d\n", card->name,
522 count, wch->bch.tx_idx);
523 wch->bch.tx_idx += count;
524 outsb(wch->addr + W_B_XFIFO, ptr, count);
525 WriteW6692B(wch, W_B_CMDR, cmd);
526 if (debug & DEBUG_HW_DFIFO) {
527 snprintf(card->log, 63, "B%1d-send %s %d ",
528 wch->bch.nr, card->name, count);
529 print_hex_dump_bytes(card->log, DUMP_PREFIX_OFFSET, ptr, count);
535 setvolume(struct w6692_ch *wch, int mic, struct sk_buff *skb)
537 struct w6692_hw *card = wch->bch.hw;
538 u16 *vol = (u16 *)skb->data;
541 if ((!(card->fmask & pots)) ||
542 !test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
557 WriteW6692(card, W_XADDR, card->xaddr);
562 enable_pots(struct w6692_ch *wch)
564 struct w6692_hw *card = wch->bch.hw;
566 if ((!(card->fmask & pots)) ||
567 !test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
569 wch->b_mode |= W_B_MODE_EPCM | W_B_MODE_BSW0;
570 WriteW6692B(wch, W_B_MODE, wch->b_mode);
571 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
572 card->pctl |= ((wch->bch.nr & 2) ? W_PCTL_PCX : 0);
573 WriteW6692(card, W_PCTL, card->pctl);
579 disable_pots(struct w6692_ch *wch)
581 struct w6692_hw *card = wch->bch.hw;
583 if (!(card->fmask & pots))
585 wch->b_mode &= ~(W_B_MODE_EPCM | W_B_MODE_BSW0);
586 WriteW6692B(wch, W_B_MODE, wch->b_mode);
587 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT |
593 w6692_mode(struct w6692_ch *wch, u32 pr)
595 struct w6692_hw *card;
598 pr_debug("%s: B%d protocol %x-->%x\n", card->name,
599 wch->bch.nr, wch->bch.state, pr);
602 if ((card->fmask & pots) && (wch->b_mode & W_B_MODE_EPCM))
605 mISDN_clear_bchannel(&wch->bch);
606 WriteW6692B(wch, W_B_MODE, wch->b_mode);
607 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
608 test_and_clear_bit(FLG_HDLC, &wch->bch.Flags);
609 test_and_clear_bit(FLG_TRANSPARENT, &wch->bch.Flags);
612 wch->b_mode = W_B_MODE_MMS;
613 WriteW6692B(wch, W_B_MODE, wch->b_mode);
614 WriteW6692B(wch, W_B_EXIM, 0);
615 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT |
617 test_and_set_bit(FLG_TRANSPARENT, &wch->bch.Flags);
620 wch->b_mode = W_B_MODE_ITF;
621 WriteW6692B(wch, W_B_MODE, wch->b_mode);
622 WriteW6692B(wch, W_B_ADM1, 0xff);
623 WriteW6692B(wch, W_B_ADM2, 0xff);
624 WriteW6692B(wch, W_B_EXIM, 0);
625 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_RACT |
627 test_and_set_bit(FLG_HDLC, &wch->bch.Flags);
630 pr_info("%s: protocol %x not known\n", card->name, pr);
638 send_next(struct w6692_ch *wch)
640 if (wch->bch.tx_skb && wch->bch.tx_idx < wch->bch.tx_skb->len)
641 W6692_fill_Bfifo(wch);
643 if (wch->bch.tx_skb) {
644 /* send confirm, on trans, free on hdlc. */
645 if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
646 confirm_Bsend(&wch->bch);
647 dev_kfree_skb(wch->bch.tx_skb);
649 if (get_next_bframe(&wch->bch))
650 W6692_fill_Bfifo(wch);
655 W6692B_interrupt(struct w6692_hw *card, int ch)
657 struct w6692_ch *wch = &card->bc[ch];
661 stat = ReadW6692B(wch, W_B_EXIR);
662 pr_debug("%s: B%d EXIR %02x\n", card->name, wch->bch.nr, stat);
663 if (stat & W_B_EXI_RME) {
664 star = ReadW6692B(wch, W_B_STAR);
665 if (star & (W_B_STAR_RDOV | W_B_STAR_CRCE | W_B_STAR_RMB)) {
666 if ((star & W_B_STAR_RDOV) &&
667 test_bit(FLG_ACTIVE, &wch->bch.Flags)) {
668 pr_debug("%s: B%d RDOV proto=%x\n", card->name,
669 wch->bch.nr, wch->bch.state);
670 #ifdef ERROR_STATISTIC
674 if (test_bit(FLG_HDLC, &wch->bch.Flags)) {
675 if (star & W_B_STAR_CRCE) {
676 pr_debug("%s: B%d CRC error\n",
677 card->name, wch->bch.nr);
678 #ifdef ERROR_STATISTIC
682 if (star & W_B_STAR_RMB) {
683 pr_debug("%s: B%d message abort\n",
684 card->name, wch->bch.nr);
685 #ifdef ERROR_STATISTIC
690 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
691 W_B_CMDR_RRST | W_B_CMDR_RACT);
693 skb_trim(wch->bch.rx_skb, 0);
695 count = ReadW6692B(wch, W_B_RBCL) &
696 (W_B_FIFO_THRESH - 1);
698 count = W_B_FIFO_THRESH;
699 W6692_empty_Bfifo(wch, count);
700 recv_Bchannel(&wch->bch, 0);
703 if (stat & W_B_EXI_RMR) {
704 if (!(stat & W_B_EXI_RME))
705 star = ReadW6692B(wch, W_B_STAR);
706 if (star & W_B_STAR_RDOV) {
707 pr_debug("%s: B%d RDOV proto=%x\n", card->name,
708 wch->bch.nr, wch->bch.state);
709 #ifdef ERROR_STATISTIC
712 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
713 W_B_CMDR_RRST | W_B_CMDR_RACT);
715 W6692_empty_Bfifo(wch, W_B_FIFO_THRESH);
716 if (test_bit(FLG_TRANSPARENT, &wch->bch.Flags) &&
717 wch->bch.rx_skb && (wch->bch.rx_skb->len > 0))
718 recv_Bchannel(&wch->bch, 0);
721 if (stat & W_B_EXI_RDOV) {
722 /* only if it is not handled yet */
723 if (!(star & W_B_STAR_RDOV)) {
724 pr_debug("%s: B%d RDOV IRQ proto=%x\n", card->name,
725 wch->bch.nr, wch->bch.state);
726 #ifdef ERROR_STATISTIC
729 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_RACK |
730 W_B_CMDR_RRST | W_B_CMDR_RACT);
733 if (stat & W_B_EXI_XFR) {
734 if (!(stat & (W_B_EXI_RME | W_B_EXI_RMR))) {
735 star = ReadW6692B(wch, W_B_STAR);
736 pr_debug("%s: B%d star %02x\n", card->name,
739 if (star & W_B_STAR_XDOW) {
740 pr_debug("%s: B%d XDOW proto=%x\n", card->name,
741 wch->bch.nr, wch->bch.state);
742 #ifdef ERROR_STATISTIC
745 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST |
748 if (wch->bch.tx_skb) {
749 if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
754 if (stat & W_B_EXI_XDUN)
755 return; /* handle XDOW only once */
757 if (stat & W_B_EXI_XDUN) {
758 pr_debug("%s: B%d XDUN proto=%x\n", card->name,
759 wch->bch.nr, wch->bch.state);
760 #ifdef ERROR_STATISTIC
763 WriteW6692B(wch, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT);
765 if (wch->bch.tx_skb) {
766 if (!test_bit(FLG_TRANSPARENT, &wch->bch.Flags))
774 w6692_irq(int intno, void *dev_id)
776 struct w6692_hw *card = dev_id;
779 spin_lock(&card->lock);
780 ista = ReadW6692(card, W_ISTA);
781 if ((ista | card->imask) == card->imask) {
782 /* possible a shared IRQ reqest */
783 spin_unlock(&card->lock);
787 pr_debug("%s: ista %02x\n", card->name, ista);
788 ista &= ~card->imask;
789 if (ista & W_INT_B1_EXI)
790 W6692B_interrupt(card, 0);
791 if (ista & W_INT_B2_EXI)
792 W6692B_interrupt(card, 1);
793 if (ista & W_INT_D_RME)
795 if (ista & W_INT_D_RMR)
796 W6692_empty_Dfifo(card, W_D_FIFO_THRESH);
797 if (ista & W_INT_D_XFR)
799 if (ista & W_INT_D_EXI)
800 handle_statusD(card);
801 if (ista & (W_INT_XINT0 | W_INT_XINT1)) /* XINT0/1 - never */
802 pr_debug("%s: W6692 spurious XINT!\n", card->name);
803 /* End IRQ Handler */
804 spin_unlock(&card->lock);
809 dbusy_timer_handler(struct dchannel *dch)
811 struct w6692_hw *card = dch->hw;
815 if (test_bit(FLG_BUSY_TIMER, &dch->Flags)) {
816 spin_lock_irqsave(&card->lock, flags);
817 rbch = ReadW6692(card, W_D_RBCH);
818 star = ReadW6692(card, W_D_STAR);
819 pr_debug("%s: D-Channel Busy RBCH %02x STAR %02x\n",
820 card->name, rbch, star);
821 if (star & W_D_STAR_XBZ) /* D-Channel Busy */
822 test_and_set_bit(FLG_L1_BUSY, &dch->Flags);
824 /* discard frame; reset transceiver */
825 test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags);
829 pr_info("%s: W6692 D-Channel Busy no tx_idx\n",
831 /* Transmitter reset */
832 WriteW6692(card, W_D_CMDR, W_D_CMDR_XRST);
834 spin_unlock_irqrestore(&card->lock, flags);
838 void initW6692(struct w6692_hw *card)
842 card->dch.timer.function = (void *)dbusy_timer_handler;
843 card->dch.timer.data = (u_long)&card->dch;
844 init_timer(&card->dch.timer);
845 w6692_mode(&card->bc[0], ISDN_P_NONE);
846 w6692_mode(&card->bc[1], ISDN_P_NONE);
847 WriteW6692(card, W_D_CTL, 0x00);
849 WriteW6692(card, W_D_SAM, 0xff);
850 WriteW6692(card, W_D_TAM, 0xff);
851 WriteW6692(card, W_D_MODE, W_D_MODE_RACT);
852 card->state = W_L1CMD_RST;
853 ph_command(card, W_L1CMD_RST);
854 ph_command(card, W_L1CMD_ECK);
855 /* enable all IRQ but extern */
857 WriteW6692(card, W_D_EXIM, 0x00);
858 WriteW6692B(&card->bc[0], W_B_EXIM, 0);
859 WriteW6692B(&card->bc[1], W_B_EXIM, 0);
860 /* Reset D-chan receiver and transmitter */
861 WriteW6692(card, W_D_CMDR, W_D_CMDR_RRST | W_D_CMDR_XRST);
862 /* Reset B-chan receiver and transmitter */
863 WriteW6692B(&card->bc[0], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
864 WriteW6692B(&card->bc[1], W_B_CMDR, W_B_CMDR_RRST | W_B_CMDR_XRST);
865 /* enable peripheral */
866 if (card->subtype == W6692_USR) {
867 /* seems that USR implemented some power control features
868 * Pin 79 is connected to the oscilator circuit so we
869 * have to handle it here
873 WriteW6692(card, W_PCTL, card->pctl);
874 WriteW6692(card, W_XDATA, card->xdata);
876 card->pctl = W_PCTL_OE5 | W_PCTL_OE4 | W_PCTL_OE2 |
877 W_PCTL_OE1 | W_PCTL_OE0;
878 card->xaddr = 0x00;/* all sw off */
879 if (card->fmask & pots)
880 card->xdata |= 0x06; /* POWER UP/ LED OFF / ALAW */
881 if (card->fmask & led)
882 card->xdata |= 0x04; /* LED OFF */
883 if ((card->fmask & pots) || (card->fmask & led)) {
884 WriteW6692(card, W_PCTL, card->pctl);
885 WriteW6692(card, W_XADDR, card->xaddr);
886 WriteW6692(card, W_XDATA, card->xdata);
887 val = ReadW6692(card, W_XADDR);
888 if (debug & DEBUG_HW)
889 pr_notice("%s: W_XADDR=%02x\n",
896 reset_w6692(struct w6692_hw *card)
898 WriteW6692(card, W_D_CTL, W_D_CTL_SRST);
900 WriteW6692(card, W_D_CTL, 0);
904 init_card(struct w6692_hw *card)
909 spin_lock_irqsave(&card->lock, flags);
911 spin_unlock_irqrestore(&card->lock, flags);
912 if (request_irq(card->irq, w6692_irq, IRQF_SHARED, card->name, card)) {
913 pr_info("%s: couldn't get interrupt %d\n", card->name,
918 spin_lock_irqsave(&card->lock, flags);
921 spin_unlock_irqrestore(&card->lock, flags);
923 msleep_interruptible(10);
924 if (debug & DEBUG_HW)
925 pr_notice("%s: IRQ %d count %d\n", card->name,
926 card->irq, card->irqcnt);
928 pr_info("%s: IRQ(%d) getting no IRQs during init %d\n",
929 card->name, card->irq, 3 - cnt);
934 free_irq(card->irq, card);
939 w6692_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb)
941 struct bchannel *bch = container_of(ch, struct bchannel, ch);
942 struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch);
943 struct w6692_hw *card = bch->hw;
945 struct mISDNhead *hh = mISDN_HEAD_P(skb);
951 spin_lock_irqsave(&card->lock, flags);
952 ret = bchannel_senddata(bch, skb);
953 if (ret > 0) { /* direct TX */
954 id = hh->id; /* skb can be freed */
956 W6692_fill_Bfifo(bc);
957 spin_unlock_irqrestore(&card->lock, flags);
958 if (!test_bit(FLG_TRANSPARENT, &bch->Flags))
959 queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
961 spin_unlock_irqrestore(&card->lock, flags);
963 case PH_ACTIVATE_REQ:
964 spin_lock_irqsave(&card->lock, flags);
965 if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags))
966 ret = w6692_mode(bc, ch->protocol);
969 spin_unlock_irqrestore(&card->lock, flags);
971 _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
974 case PH_DEACTIVATE_REQ:
975 spin_lock_irqsave(&card->lock, flags);
976 mISDN_clear_bchannel(bch);
977 w6692_mode(bc, ISDN_P_NONE);
978 spin_unlock_irqrestore(&card->lock, flags);
979 _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
984 pr_info("%s: %s unknown prim(%x,%x)\n",
985 card->name, __func__, hh->prim, hh->id);
994 channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
999 case MISDN_CTRL_GETOP:
1002 /* Nothing implemented yet */
1003 case MISDN_CTRL_FILL_EMPTY:
1005 pr_info("%s: unknown Op %x\n", __func__, cq->op);
1013 open_bchannel(struct w6692_hw *card, struct channel_req *rq)
1015 struct bchannel *bch;
1017 if (rq->adr.channel > 2)
1019 if (rq->protocol == ISDN_P_NONE)
1021 bch = &card->bc[rq->adr.channel - 1].bch;
1022 if (test_and_set_bit(FLG_OPEN, &bch->Flags))
1023 return -EBUSY; /* b-channel can be only open once */
1024 test_and_clear_bit(FLG_FILLEMPTY, &bch->Flags);
1025 bch->ch.protocol = rq->protocol;
1031 channel_ctrl(struct w6692_hw *card, struct mISDN_ctrl_req *cq)
1036 case MISDN_CTRL_GETOP:
1040 pr_info("%s: unknown CTRL OP %x\n", card->name, cq->op);
1048 w6692_bctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
1050 struct bchannel *bch = container_of(ch, struct bchannel, ch);
1051 struct w6692_ch *bc = container_of(bch, struct w6692_ch, bch);
1052 struct w6692_hw *card = bch->hw;
1056 pr_debug("%s: %s cmd:%x %p\n", card->name, __func__, cmd, arg);
1059 test_and_clear_bit(FLG_OPEN, &bch->Flags);
1060 if (test_bit(FLG_ACTIVE, &bch->Flags)) {
1061 spin_lock_irqsave(&card->lock, flags);
1062 mISDN_freebchannel(bch);
1063 w6692_mode(bc, ISDN_P_NONE);
1064 spin_unlock_irqrestore(&card->lock, flags);
1066 skb_queue_purge(&bch->rqueue);
1069 ch->protocol = ISDN_P_NONE;
1071 module_put(THIS_MODULE);
1074 case CONTROL_CHANNEL:
1075 ret = channel_bctrl(bch, arg);
1078 pr_info("%s: %s unknown prim(%x)\n",
1079 card->name, __func__, cmd);
1085 w6692_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb)
1087 struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
1088 struct dchannel *dch = container_of(dev, struct dchannel, dev);
1089 struct w6692_hw *card = container_of(dch, struct w6692_hw, dch);
1091 struct mISDNhead *hh = mISDN_HEAD_P(skb);
1097 spin_lock_irqsave(&card->lock, flags);
1098 ret = dchannel_senddata(dch, skb);
1099 if (ret > 0) { /* direct TX */
1100 id = hh->id; /* skb can be freed */
1101 W6692_fill_Dfifo(card);
1103 spin_unlock_irqrestore(&card->lock, flags);
1104 queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
1106 spin_unlock_irqrestore(&card->lock, flags);
1108 case PH_ACTIVATE_REQ:
1109 ret = l1_event(dch->l1, hh->prim);
1111 case PH_DEACTIVATE_REQ:
1112 test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
1113 ret = l1_event(dch->l1, hh->prim);
1123 w6692_l1callback(struct dchannel *dch, u32 cmd)
1125 struct w6692_hw *card = container_of(dch, struct w6692_hw, dch);
1128 pr_debug("%s: cmd(%x) state(%02x)\n", card->name, cmd, card->state);
1131 spin_lock_irqsave(&card->lock, flags);
1132 ph_command(card, W_L1CMD_AR8);
1133 spin_unlock_irqrestore(&card->lock, flags);
1136 spin_lock_irqsave(&card->lock, flags);
1137 ph_command(card, W_L1CMD_AR10);
1138 spin_unlock_irqrestore(&card->lock, flags);
1141 spin_lock_irqsave(&card->lock, flags);
1142 if (card->state != W_L1IND_DRD)
1143 ph_command(card, W_L1CMD_RST);
1144 ph_command(card, W_L1CMD_ECK);
1145 spin_unlock_irqrestore(&card->lock, flags);
1148 skb_queue_purge(&dch->squeue);
1150 dev_kfree_skb(dch->tx_skb);
1155 dev_kfree_skb(dch->rx_skb);
1158 test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
1159 if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
1160 del_timer(&dch->timer);
1162 case HW_POWERUP_REQ:
1163 spin_lock_irqsave(&card->lock, flags);
1164 ph_command(card, W_L1CMD_ECK);
1165 spin_unlock_irqrestore(&card->lock, flags);
1167 case PH_ACTIVATE_IND:
1168 test_and_set_bit(FLG_ACTIVE, &dch->Flags);
1169 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
1172 case PH_DEACTIVATE_IND:
1173 test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
1174 _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
1178 pr_debug("%s: %s unknown command %x\n", card->name,
1186 open_dchannel(struct w6692_hw *card, struct channel_req *rq)
1188 pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__,
1189 card->dch.dev.id, __builtin_return_address(1));
1190 if (rq->protocol != ISDN_P_TE_S0)
1192 if (rq->adr.channel == 1)
1193 /* E-Channel not supported */
1195 rq->ch = &card->dch.dev.D;
1196 rq->ch->protocol = rq->protocol;
1197 if (card->dch.state == 7)
1198 _queue_data(rq->ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
1199 0, NULL, GFP_KERNEL);
1204 w6692_dctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
1206 struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
1207 struct dchannel *dch = container_of(dev, struct dchannel, dev);
1208 struct w6692_hw *card = container_of(dch, struct w6692_hw, dch);
1209 struct channel_req *rq;
1212 pr_debug("%s: DCTRL: %x %p\n", card->name, cmd, arg);
1216 if (rq->protocol == ISDN_P_TE_S0)
1217 err = open_dchannel(card, rq);
1219 err = open_bchannel(card, rq);
1222 if (!try_module_get(THIS_MODULE))
1223 pr_info("%s: cannot get module\n", card->name);
1226 pr_debug("%s: dev(%d) close from %p\n", card->name,
1227 dch->dev.id, __builtin_return_address(0));
1228 module_put(THIS_MODULE);
1230 case CONTROL_CHANNEL:
1231 err = channel_ctrl(card, arg);
1234 pr_debug("%s: unknown DCTRL command %x\n", card->name, cmd);
1241 setup_w6692(struct w6692_hw *card)
1245 if (!request_region(card->addr, 256, card->name)) {
1246 pr_info("%s: config port %x-%x already in use\n", card->name,
1247 card->addr, card->addr + 255);
1251 card->bc[0].addr = card->addr;
1252 card->bc[1].addr = card->addr + 0x40;
1253 val = ReadW6692(card, W_ISTA);
1254 if (debug & DEBUG_HW)
1255 pr_notice("%s ISTA=%02x\n", card->name, val);
1256 val = ReadW6692(card, W_IMASK);
1257 if (debug & DEBUG_HW)
1258 pr_notice("%s IMASK=%02x\n", card->name, val);
1259 val = ReadW6692(card, W_D_EXIR);
1260 if (debug & DEBUG_HW)
1261 pr_notice("%s D_EXIR=%02x\n", card->name, val);
1262 val = ReadW6692(card, W_D_EXIM);
1263 if (debug & DEBUG_HW)
1264 pr_notice("%s D_EXIM=%02x\n", card->name, val);
1265 val = ReadW6692(card, W_D_RSTA);
1266 if (debug & DEBUG_HW)
1267 pr_notice("%s D_RSTA=%02x\n", card->name, val);
1272 release_card(struct w6692_hw *card)
1276 spin_lock_irqsave(&card->lock, flags);
1277 disable_hwirq(card);
1278 w6692_mode(&card->bc[0], ISDN_P_NONE);
1279 w6692_mode(&card->bc[1], ISDN_P_NONE);
1280 if ((card->fmask & led) || card->subtype == W6692_USR) {
1281 card->xdata |= 0x04; /* LED OFF */
1282 WriteW6692(card, W_XDATA, card->xdata);
1284 spin_unlock_irqrestore(&card->lock, flags);
1285 free_irq(card->irq, card);
1286 l1_event(card->dch.l1, CLOSE_CHANNEL);
1287 mISDN_unregister_device(&card->dch.dev);
1288 release_region(card->addr, 256);
1289 mISDN_freebchannel(&card->bc[1].bch);
1290 mISDN_freebchannel(&card->bc[0].bch);
1291 mISDN_freedchannel(&card->dch);
1292 write_lock_irqsave(&card_lock, flags);
1293 list_del(&card->list);
1294 write_unlock_irqrestore(&card_lock, flags);
1295 pci_disable_device(card->pdev);
1296 pci_set_drvdata(card->pdev, NULL);
1301 setup_instance(struct w6692_hw *card)
1306 snprintf(card->name, MISDN_MAX_IDLEN - 1, "w6692.%d", w6692_cnt + 1);
1307 write_lock_irqsave(&card_lock, flags);
1308 list_add_tail(&card->list, &Cards);
1309 write_unlock_irqrestore(&card_lock, flags);
1310 card->fmask = (1 << w6692_cnt);
1312 spin_lock_init(&card->lock);
1313 mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, W6692_ph_bh);
1314 card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0);
1315 card->dch.dev.D.send = w6692_l2l1D;
1316 card->dch.dev.D.ctrl = w6692_dctrl;
1317 card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
1318 (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
1319 card->dch.hw = card;
1320 card->dch.dev.nrbchan = 2;
1321 for (i = 0; i < 2; i++) {
1322 mISDN_initbchannel(&card->bc[i].bch, MAX_DATA_MEM);
1323 card->bc[i].bch.hw = card;
1324 card->bc[i].bch.nr = i + 1;
1325 card->bc[i].bch.ch.nr = i + 1;
1326 card->bc[i].bch.ch.send = w6692_l2l1B;
1327 card->bc[i].bch.ch.ctrl = w6692_bctrl;
1328 set_channelmap(i + 1, card->dch.dev.channelmap);
1329 list_add(&card->bc[i].bch.ch.list, &card->dch.dev.bchannels);
1331 err = setup_w6692(card);
1334 err = mISDN_register_device(&card->dch.dev, &card->pdev->dev,
1338 err = init_card(card);
1341 err = create_l1(&card->dch, w6692_l1callback);
1344 pr_notice("W6692 %d cards installed\n", w6692_cnt);
1348 free_irq(card->irq, card);
1350 mISDN_unregister_device(&card->dch.dev);
1352 release_region(card->addr, 256);
1354 mISDN_freebchannel(&card->bc[1].bch);
1355 mISDN_freebchannel(&card->bc[0].bch);
1356 mISDN_freedchannel(&card->dch);
1357 write_lock_irqsave(&card_lock, flags);
1358 list_del(&card->list);
1359 write_unlock_irqrestore(&card_lock, flags);
1364 static int __devinit
1365 w6692_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1368 struct w6692_hw *card;
1369 struct w6692map *m = (struct w6692map *)ent->driver_data;
1371 card = kzalloc(sizeof(struct w6692_hw), GFP_KERNEL);
1373 pr_info("No kmem for w6692 card\n");
1377 card->subtype = m->subtype;
1378 err = pci_enable_device(pdev);
1384 printk(KERN_INFO "mISDN_w6692: found adapter %s at %s\n",
1385 m->name, pci_name(pdev));
1387 card->addr = pci_resource_start(pdev, 1);
1388 card->irq = pdev->irq;
1389 pci_set_drvdata(pdev, card);
1390 err = setup_instance(card);
1392 pci_set_drvdata(pdev, NULL);
1396 static void __devexit
1397 w6692_remove_pci(struct pci_dev *pdev)
1399 struct w6692_hw *card = pci_get_drvdata(pdev);
1405 pr_notice("%s: drvdata allready removed\n", __func__);
1408 static struct pci_device_id w6692_ids[] = {
1409 { PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH,
1410 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[0]},
1411 { PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692,
1412 PCI_VENDOR_ID_USR, PCI_DEVICE_ID_USR_6692, 0, 0,
1413 (ulong)&w6692_map[2]},
1414 { PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692,
1415 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (ulong)&w6692_map[1]},
1418 MODULE_DEVICE_TABLE(pci, w6692_ids);
1420 static struct pci_driver w6692_driver = {
1422 .probe = w6692_probe,
1423 .remove = __devexit_p(w6692_remove_pci),
1424 .id_table = w6692_ids,
1427 static int __init w6692_init(void)
1431 pr_notice("Winbond W6692 PCI driver Rev. %s\n", W6692_REV);
1433 err = pci_register_driver(&w6692_driver);
1437 static void __exit w6692_cleanup(void)
1439 pci_unregister_driver(&w6692_driver);
1442 module_init(w6692_init);
1443 module_exit(w6692_cleanup);