isdn: remove hisax driver

With the decline of ISDN, this seems to have become almost completely
obsolete, and even in the past years before that, almost all remaining
users appear to have used mISDN instead.

Birger Harzenetter noted that he is still using i4l/hisax to take
advantage of the 'divert' driver for call diversion, but otherwise uses
mISDN on the same hardware. This is a rare edge case as far as I
can tell, but we are still breaking an actively used work flow
(see https://xkcd.com/1172/).

We debated moving i4l/hisax to staging as an intermediate step, but as
he is not likely to change the setup, and that would just delay breaking
this use case.  The alternatives here are to stay on stable kernels
< 5.2, to create an external driver repository for isdn4linux, or to
add divert functionality to mISDN.

Cc: Birger Harzenetter <WIMPy@yeti.dk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 1085 deletions

diff --git a/drivers/isdn/hisax/w6692.c b/drivers/isdn/hisax/w6692.c
deleted file mode 100644
index 36eefaa3a7d9..000000000000
--- a/drivers/isdn/hisax/w6692.c
+++ /dev/null
@@ -1,1085 +0,0 @@
-/* $Id: w6692.c,v 1.18.2.4 2004/02/11 13:21:34 keil Exp $
- *
- * Winbond W6692 specific routines
- *
- * Author       Petr Novak
- * Copyright    by Petr Novak        <petr.novak@i.cz>
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- */
-
-#include <linux/init.h>
-#include "hisax.h"
-#include "w6692.h"
-#include "isdnl1.h"
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-
-/* table entry in the PCI devices list */
-typedef struct {
-	int vendor_id;
-	int device_id;
-	char *vendor_name;
-	char *card_name;
-} PCI_ENTRY;
-
-static const PCI_ENTRY id_list[] =
-{
-	{PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692, "Winbond", "W6692"},
-	{PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH, "Dynalink/AsusCom", "IS64PH"},
-	{0, 0, "U.S.Robotics", "ISDN PCI Card TA"}
-};
-
-#define W6692_SV_USR   0x16ec
-#define W6692_SD_USR   0x3409
-#define W6692_WINBOND  0
-#define W6692_DYNALINK 1
-#define W6692_USR      2
-
-static const char *w6692_revision = "$Revision: 1.18.2.4 $";
-
-#define DBUSY_TIMER_VALUE 80
-
-static char *W6692Ver[] =
-{"W6692 V00", "W6692 V01", "W6692 V10",
- "W6692 V11"};
-
-static void
-W6692Version(struct IsdnCardState *cs, char *s)
-{
-	int val;
-
-	val = cs->readW6692(cs, W_D_RBCH);
-	printk(KERN_INFO "%s Winbond W6692 version (%x): %s\n", s, val, W6692Ver[(val >> 6) & 3]);
-}
-
-static void
-ph_command(struct IsdnCardState *cs, unsigned int command)
-{
-	if (cs->debug & L1_DEB_ISAC)
-		debugl1(cs, "ph_command %x", command);
-	cs->writeisac(cs, W_CIX, command);
-}
-
-
-static void
-W6692_new_ph(struct IsdnCardState *cs)
-{
-	switch (cs->dc.w6692.ph_state) {
-	case (W_L1CMD_RST):
-		ph_command(cs, W_L1CMD_DRC);
-		l1_msg(cs, HW_RESET | INDICATION, NULL);
-		/* fall through */
-	case (W_L1IND_CD):
-		l1_msg(cs, HW_DEACTIVATE | CONFIRM, NULL);
-		break;
-	case (W_L1IND_DRD):
-		l1_msg(cs, HW_DEACTIVATE | INDICATION, NULL);
-		break;
-	case (W_L1IND_CE):
-		l1_msg(cs, HW_POWERUP | CONFIRM, NULL);
-		break;
-	case (W_L1IND_LD):
-		l1_msg(cs, HW_RSYNC | INDICATION, NULL);
-		break;
-	case (W_L1IND_ARD):
-		l1_msg(cs, HW_INFO2 | INDICATION, NULL);
-		break;
-	case (W_L1IND_AI8):
-		l1_msg(cs, HW_INFO4_P8 | INDICATION, NULL);
-		break;
-	case (W_L1IND_AI10):
-		l1_msg(cs, HW_INFO4_P10 | INDICATION, NULL);
-		break;
-	default:
-		break;
-	}
-}
-
-static void
-W6692_bh(struct work_struct *work)
-{
-	struct IsdnCardState *cs =
-		container_of(work, struct IsdnCardState, tqueue);
-	struct PStack *stptr;
-
-	if (test_and_clear_bit(D_CLEARBUSY, &cs->event)) {
-		if (cs->debug)
-			debugl1(cs, "D-Channel Busy cleared");
-		stptr = cs->stlist;
-		while (stptr != NULL) {
-			stptr->l1.l1l2(stptr, PH_PAUSE | CONFIRM, NULL);
-			stptr = stptr->next;
-		}
-	}
-	if (test_and_clear_bit(D_L1STATECHANGE, &cs->event))
-		W6692_new_ph(cs);
-	if (test_and_clear_bit(D_RCVBUFREADY, &cs->event))
-		DChannel_proc_rcv(cs);
-	if (test_and_clear_bit(D_XMTBUFREADY, &cs->event))
-		DChannel_proc_xmt(cs);
-/*
-  if (test_and_clear_bit(D_RX_MON1, &cs->event))
-  arcofi_fsm(cs, ARCOFI_RX_END, NULL);
-  if (test_and_clear_bit(D_TX_MON1, &cs->event))
-  arcofi_fsm(cs, ARCOFI_TX_END, NULL);
-*/
-}
-
-static void
-W6692_empty_fifo(struct IsdnCardState *cs, int count)
-{
-	u_char *ptr;
-
-	if ((cs->debug & L1_DEB_ISAC) && !(cs->debug & L1_DEB_ISAC_FIFO))
-		debugl1(cs, "W6692_empty_fifo");
-
-	if ((cs->rcvidx + count) >= MAX_DFRAME_LEN_L1) {
-		if (cs->debug & L1_DEB_WARN)
-			debugl1(cs, "W6692_empty_fifo overrun %d",
-				cs->rcvidx + count);
-		cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RACK);
-		cs->rcvidx = 0;
-		return;
-	}
-	ptr = cs->rcvbuf + cs->rcvidx;
-	cs->rcvidx += count;
-	cs->readW6692fifo(cs, ptr, count);
-	cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RACK);
-	if (cs->debug & L1_DEB_ISAC_FIFO) {
-		char *t = cs->dlog;
-
-		t += sprintf(t, "W6692_empty_fifo cnt %d", count);
-		QuickHex(t, ptr, count);
-		debugl1(cs, "%s", cs->dlog);
-	}
-}
-
-static void
-W6692_fill_fifo(struct IsdnCardState *cs)
-{
-	int count, more;
-	u_char *ptr;
-
-	if ((cs->debug & L1_DEB_ISAC) && !(cs->debug & L1_DEB_ISAC_FIFO))
-		debugl1(cs, "W6692_fill_fifo");
-
-	if (!cs->tx_skb)
-		return;
-
-	count = cs->tx_skb->len;
-	if (count <= 0)
-		return;
-
-	more = 0;
-	if (count > W_D_FIFO_THRESH) {
-		more = !0;
-		count = W_D_FIFO_THRESH;
-	}
-	ptr = cs->tx_skb->data;
-	skb_pull(cs->tx_skb, count);
-	cs->tx_cnt += count;
-	cs->writeW6692fifo(cs, ptr, count);
-	cs->writeW6692(cs, W_D_CMDR, more ? W_D_CMDR_XMS : (W_D_CMDR_XMS | W_D_CMDR_XME));
-	if (test_and_set_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) {
-		debugl1(cs, "W6692_fill_fifo dbusytimer running");
-		del_timer(&cs->dbusytimer);
-	}
-	cs->dbusytimer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ) / 1000);
-	add_timer(&cs->dbusytimer);
-	if (cs->debug & L1_DEB_ISAC_FIFO) {
-		char *t = cs->dlog;
-
-		t += sprintf(t, "W6692_fill_fifo cnt %d", count);
-		QuickHex(t, ptr, count);
-		debugl1(cs, "%s", cs->dlog);
-	}
-}
-
-static void
-W6692B_empty_fifo(struct BCState *bcs, int count)
-{
-	u_char *ptr;
-	struct IsdnCardState *cs = bcs->cs;
-
-	if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
-		debugl1(cs, "W6692B_empty_fifo");
-
-	if (bcs->hw.w6692.rcvidx + count > HSCX_BUFMAX) {
-		if (cs->debug & L1_DEB_WARN)
-			debugl1(cs, "W6692B_empty_fifo: incoming packet too large");
-		cs->BC_Write_Reg(cs, bcs->channel, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
-		bcs->hw.w6692.rcvidx = 0;
-		return;
-	}
-	ptr = bcs->hw.w6692.rcvbuf + bcs->hw.w6692.rcvidx;
-	bcs->hw.w6692.rcvidx += count;
-	READW6692BFIFO(cs, bcs->channel, ptr, count);
-	cs->BC_Write_Reg(cs, bcs->channel, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
-	if (cs->debug & L1_DEB_HSCX_FIFO) {
-		char *t = bcs->blog;
-
-		t += sprintf(t, "W6692B_empty_fifo %c cnt %d",
-			     bcs->channel + '1', count);
-		QuickHex(t, ptr, count);
-		debugl1(cs, "%s", bcs->blog);
-	}
-}
-
-static void
-W6692B_fill_fifo(struct BCState *bcs)
-{
-	struct IsdnCardState *cs = bcs->cs;
-	int more, count;
-	u_char *ptr;
-
-	if (!bcs->tx_skb)
-		return;
-	if (bcs->tx_skb->len <= 0)
-		return;
-
-	more = (bcs->mode == L1_MODE_TRANS) ? 1 : 0;
-	if (bcs->tx_skb->len > W_B_FIFO_THRESH) {
-		more = 1;
-		count = W_B_FIFO_THRESH;
-	} else
-		count = bcs->tx_skb->len;
-
-	if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
-		debugl1(cs, "W6692B_fill_fifo%s%d", (more ? " " : " last "), count);
-
-	ptr = bcs->tx_skb->data;
-	skb_pull(bcs->tx_skb, count);
-	bcs->tx_cnt -= count;
-	bcs->hw.w6692.count += count;
-	WRITEW6692BFIFO(cs, bcs->channel, ptr, count);
-	cs->BC_Write_Reg(cs, bcs->channel, W_B_CMDR, W_B_CMDR_RACT | W_B_CMDR_XMS | (more ? 0 : W_B_CMDR_XME));
-	if (cs->debug & L1_DEB_HSCX_FIFO) {
-		char *t = bcs->blog;
-
-		t += sprintf(t, "W6692B_fill_fifo %c cnt %d",
-			     bcs->channel + '1', count);
-		QuickHex(t, ptr, count);
-		debugl1(cs, "%s", bcs->blog);
-	}
-}
-
-static void
-W6692B_interrupt(struct IsdnCardState *cs, u_char bchan)
-{
-	u_char val;
-	u_char r;
-	struct BCState *bcs;
-	struct sk_buff *skb;
-	int count;
-
-	bcs = (cs->bcs->channel == bchan) ? cs->bcs : (cs->bcs + 1);
-	val = cs->BC_Read_Reg(cs, bchan, W_B_EXIR);
-	debugl1(cs, "W6692B chan %d B_EXIR 0x%02X", bchan, val);
-
-	if (!test_bit(BC_FLG_INIT, &bcs->Flag)) {
-		debugl1(cs, "W6692B not INIT yet");
-		return;
-	}
-	if (val & W_B_EXI_RME) {	/* RME */
-		r = cs->BC_Read_Reg(cs, bchan, W_B_STAR);
-		if (r & (W_B_STAR_RDOV | W_B_STAR_CRCE | W_B_STAR_RMB)) {
-			if (cs->debug & L1_DEB_WARN)
-				debugl1(cs, "W6692 B STAR %x", r);
-			if ((r & W_B_STAR_RDOV) && bcs->mode)
-				if (cs->debug & L1_DEB_WARN)
-					debugl1(cs, "W6692 B RDOV mode=%d",
-						bcs->mode);
-			if (r & W_B_STAR_CRCE)
-				if (cs->debug & L1_DEB_WARN)
-					debugl1(cs, "W6692 B CRC error");
-			cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RRST | W_B_CMDR_RACT);
-		} else {
-			count = cs->BC_Read_Reg(cs, bchan, W_B_RBCL) & (W_B_FIFO_THRESH - 1);
-			if (count == 0)
-				count = W_B_FIFO_THRESH;
-			W6692B_empty_fifo(bcs, count);
-			if ((count = bcs->hw.w6692.rcvidx) > 0) {
-				if (cs->debug & L1_DEB_HSCX_FIFO)
-					debugl1(cs, "W6692 Bchan Frame %d", count);
-				if (!(skb = dev_alloc_skb(count)))
-					printk(KERN_WARNING "W6692: Bchan receive out of memory\n");
-				else {
-					skb_put_data(skb,
-						     bcs->hw.w6692.rcvbuf,
-						     count);
-					skb_queue_tail(&bcs->rqueue, skb);
-				}
-			}
-		}
-		bcs->hw.w6692.rcvidx = 0;
-		schedule_event(bcs, B_RCVBUFREADY);
-	}
-	if (val & W_B_EXI_RMR) {	/* RMR */
-		W6692B_empty_fifo(bcs, W_B_FIFO_THRESH);
-		r = cs->BC_Read_Reg(cs, bchan, W_B_STAR);
-		if (r & W_B_STAR_RDOV) {
-			if (cs->debug & L1_DEB_WARN)
-				debugl1(cs, "W6692 B RDOV(RMR) mode=%d", bcs->mode);
-			cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RRST | W_B_CMDR_RACT);
-			if (bcs->mode != L1_MODE_TRANS)
-				bcs->hw.w6692.rcvidx = 0;
-		}
-		if (bcs->mode == L1_MODE_TRANS) {
-			/* receive audio data */
-			if (!(skb = dev_alloc_skb(W_B_FIFO_THRESH)))
-				printk(KERN_WARNING "HiSax: receive out of memory\n");
-			else {
-				skb_put_data(skb, bcs->hw.w6692.rcvbuf,
-					     W_B_FIFO_THRESH);
-				skb_queue_tail(&bcs->rqueue, skb);
-			}
-			bcs->hw.w6692.rcvidx = 0;
-			schedule_event(bcs, B_RCVBUFREADY);
-		}
-	}
-	if (val & W_B_EXI_XDUN) {	/* XDUN */
-		cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT);
-		if (cs->debug & L1_DEB_WARN)
-			debugl1(cs, "W6692 B EXIR %x Lost TX", val);
-		if (bcs->mode == 1)
-			W6692B_fill_fifo(bcs);
-		else {
-			/* Here we lost an TX interrupt, so
-			 * restart transmitting the whole frame.
-			 */
-			if (bcs->tx_skb) {
-				skb_push(bcs->tx_skb, bcs->hw.w6692.count);
-				bcs->tx_cnt += bcs->hw.w6692.count;
-				bcs->hw.w6692.count = 0;
-			}
-		}
-		return;
-	}
-	if (val & W_B_EXI_XFR) {	/* XFR */
-		r = cs->BC_Read_Reg(cs, bchan, W_B_STAR);
-		if (r & W_B_STAR_XDOW) {
-			if (cs->debug & L1_DEB_WARN)
-				debugl1(cs, "W6692 B STAR %x XDOW", r);
-			cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT);
-			if (bcs->tx_skb && (bcs->mode != 1)) {
-				skb_push(bcs->tx_skb, bcs->hw.w6692.count);
-				bcs->tx_cnt += bcs->hw.w6692.count;
-				bcs->hw.w6692.count = 0;
-			}
-		}
-		if (bcs->tx_skb) {
-			if (bcs->tx_skb->len) {
-				W6692B_fill_fifo(bcs);
-				return;
-			} else {
-				if (test_bit(FLG_LLI_L1WAKEUP, &bcs->st->lli.flag) &&
-				    (PACKET_NOACK != bcs->tx_skb->pkt_type)) {
-					u_long flags;
-					spin_lock_irqsave(&bcs->aclock, flags);
-					bcs->ackcnt += bcs->hw.w6692.count;
-					spin_unlock_irqrestore(&bcs->aclock, flags);
-					schedule_event(bcs, B_ACKPENDING);
-				}
-				dev_kfree_skb_irq(bcs->tx_skb);
-				bcs->hw.w6692.count = 0;
-				bcs->tx_skb = NULL;
-			}
-		}
-		if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
-			bcs->hw.w6692.count = 0;
-			test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
-			W6692B_fill_fifo(bcs);
-		} else {
-			test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
-			schedule_event(bcs, B_XMTBUFREADY);
-		}
-	}
-}
-
-static irqreturn_t
-W6692_interrupt(int intno, void *dev_id)
-{
-	struct IsdnCardState	*cs = dev_id;
-	u_char			val, exval, v1;
-	struct sk_buff		*skb;
-	u_int			count;
-	u_long			flags;
-	int			icnt = 5;
-
-	spin_lock_irqsave(&cs->lock, flags);
-	val = cs->readW6692(cs, W_ISTA);
-	if (!val) {
-		spin_unlock_irqrestore(&cs->lock, flags);
-		return IRQ_NONE;
-	}
-StartW6692:
-	if (cs->debug & L1_DEB_ISAC)
-		debugl1(cs, "W6692 ISTA %x", val);
-
-	if (val & W_INT_D_RME) {	/* RME */
-		exval = cs->readW6692(cs, W_D_RSTA);
-		if (exval & (W_D_RSTA_RDOV | W_D_RSTA_CRCE | W_D_RSTA_RMB)) {
-			if (exval & W_D_RSTA_RDOV)
-				if (cs->debug & L1_DEB_WARN)
-					debugl1(cs, "W6692 RDOV");
-			if (exval & W_D_RSTA_CRCE)
-				if (cs->debug & L1_DEB_WARN)
-					debugl1(cs, "W6692 D-channel CRC error");
-			if (exval & W_D_RSTA_RMB)
-				if (cs->debug & L1_DEB_WARN)
-					debugl1(cs, "W6692 D-channel ABORT");
-			cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST);
-		} else {
-			count = cs->readW6692(cs, W_D_RBCL) & (W_D_FIFO_THRESH - 1);
-			if (count == 0)
-				count = W_D_FIFO_THRESH;
-			W6692_empty_fifo(cs, count);
-			if ((count = cs->rcvidx) > 0) {
-				cs->rcvidx = 0;
-				if (!(skb = alloc_skb(count, GFP_ATOMIC)))
-					printk(KERN_WARNING "HiSax: D receive out of memory\n");
-				else {
-					skb_put_data(skb, cs->rcvbuf, count);
-					skb_queue_tail(&cs->rq, skb);
-				}
-			}
-		}
-		cs->rcvidx = 0;
-		schedule_event(cs, D_RCVBUFREADY);
-	}
-	if (val & W_INT_D_RMR) {	/* RMR */
-		W6692_empty_fifo(cs, W_D_FIFO_THRESH);
-	}
-	if (val & W_INT_D_XFR) {	/* XFR */
-		if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
-			del_timer(&cs->dbusytimer);
-		if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
-			schedule_event(cs, D_CLEARBUSY);
-		if (cs->tx_skb) {
-			if (cs->tx_skb->len) {
-				W6692_fill_fifo(cs);
-				goto afterXFR;
-			} else {
-				dev_kfree_skb_irq(cs->tx_skb);
-				cs->tx_cnt = 0;
-				cs->tx_skb = NULL;
-			}
-		}
-		if ((cs->tx_skb = skb_dequeue(&cs->sq))) {
-			cs->tx_cnt = 0;
-			W6692_fill_fifo(cs);
-		} else
-			schedule_event(cs, D_XMTBUFREADY);
-	}
-afterXFR:
-	if (val & (W_INT_XINT0 | W_INT_XINT1)) {	/* XINT0/1 - never */
-		if (cs->debug & L1_DEB_ISAC)
-			debugl1(cs, "W6692 spurious XINT!");
-	}
-	if (val & W_INT_D_EXI) {	/* EXI */
-		exval = cs->readW6692(cs, W_D_EXIR);
-		if (cs->debug & L1_DEB_WARN)
-			debugl1(cs, "W6692 D_EXIR %02x", exval);
-		if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) {	/* Transmit underrun/collision */
-			debugl1(cs, "W6692 D-chan underrun/collision");
-			printk(KERN_WARNING "HiSax: W6692 XDUN/XCOL\n");
-			if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
-				del_timer(&cs->dbusytimer);
-			if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
-				schedule_event(cs, D_CLEARBUSY);
-			if (cs->tx_skb) {	/* Restart frame */
-				skb_push(cs->tx_skb, cs->tx_cnt);
-				cs->tx_cnt = 0;
-				W6692_fill_fifo(cs);
-			} else {
-				printk(KERN_WARNING "HiSax: W6692 XDUN/XCOL no skb\n");
-				debugl1(cs, "W6692 XDUN/XCOL no skb");
-				cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_XRST);
-			}
-		}
-		if (exval & W_D_EXI_RDOV) {	/* RDOV */
-			debugl1(cs, "W6692 D-channel RDOV");
-			printk(KERN_WARNING "HiSax: W6692 D-RDOV\n");
-			cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RRST);
-		}
-		if (exval & W_D_EXI_TIN2) {	/* TIN2 - never */
-			debugl1(cs, "W6692 spurious TIN2 interrupt");
-		}
-		if (exval & W_D_EXI_MOC) {	/* MOC - not supported */
-			debugl1(cs, "W6692 spurious MOC interrupt");
-			v1 = cs->readW6692(cs, W_MOSR);
-			debugl1(cs, "W6692 MOSR %02x", v1);
-		}
-		if (exval & W_D_EXI_ISC) {	/* ISC - Level1 change */
-			v1 = cs->readW6692(cs, W_CIR);
-			if (cs->debug & L1_DEB_ISAC)
-				debugl1(cs, "W6692 ISC CIR=0x%02X", v1);
-			if (v1 & W_CIR_ICC) {
-				cs->dc.w6692.ph_state = v1 & W_CIR_COD_MASK;
-				if (cs->debug & L1_DEB_ISAC)
-					debugl1(cs, "ph_state_change %x", cs->dc.w6692.ph_state);
-				schedule_event(cs, D_L1STATECHANGE);
-			}
-			if (v1 & W_CIR_SCC) {
-				v1 = cs->readW6692(cs, W_SQR);
-				debugl1(cs, "W6692 SCC SQR=0x%02X", v1);
-			}
-		}
-		if (exval & W_D_EXI_WEXP) {
-			debugl1(cs, "W6692 spurious WEXP interrupt!");
-		}
-		if (exval & W_D_EXI_TEXP) {
-			debugl1(cs, "W6692 spurious TEXP interrupt!");
-		}
-	}
-	if (val & W_INT_B1_EXI) {
-		debugl1(cs, "W6692 B channel 1 interrupt");
-		W6692B_interrupt(cs, 0);
-	}
-	if (val & W_INT_B2_EXI) {
-		debugl1(cs, "W6692 B channel 2 interrupt");
-		W6692B_interrupt(cs, 1);
-	}
-	val = cs->readW6692(cs, W_ISTA);
-	if (val && icnt) {
-		icnt--;
-		goto StartW6692;
-	}
-	if (!icnt) {
-		printk(KERN_WARNING "W6692 IRQ LOOP\n");
-		cs->writeW6692(cs, W_IMASK, 0xff);
-	}
-	spin_unlock_irqrestore(&cs->lock, flags);
-	return IRQ_HANDLED;
-}
-
-static void
-W6692_l1hw(struct PStack *st, int pr, void *arg)
-{
-	struct IsdnCardState *cs = (struct IsdnCardState *) st->l1.hardware;
-	struct sk_buff *skb = arg;
-	u_long flags;
-	int val;
-
-	switch (pr) {
-	case (PH_DATA | REQUEST):
-		if (cs->debug & DEB_DLOG_HEX)
-			LogFrame(cs, skb->data, skb->len);
-		if (cs->debug & DEB_DLOG_VERBOSE)
-			dlogframe(cs, skb, 0);
-		spin_lock_irqsave(&cs->lock, flags);
-		if (cs->tx_skb) {
-			skb_queue_tail(&cs->sq, skb);
-#ifdef L2FRAME_DEBUG		/* psa */
-			if (cs->debug & L1_DEB_LAPD)
-				Logl2Frame(cs, skb, "PH_DATA Queued", 0);
-#endif
-		} else {
-			cs->tx_skb = skb;
-			cs->tx_cnt = 0;
-#ifdef L2FRAME_DEBUG		/* psa */
-			if (cs->debug & L1_DEB_LAPD)
-				Logl2Frame(cs, skb, "PH_DATA", 0);
-#endif
-			W6692_fill_fifo(cs);
-		}
-		spin_unlock_irqrestore(&cs->lock, flags);
-		break;
-	case (PH_PULL | INDICATION):
-		spin_lock_irqsave(&cs->lock, flags);
-		if (cs->tx_skb) {
-			if (cs->debug & L1_DEB_WARN)
-				debugl1(cs, " l2l1 tx_skb exist this shouldn't happen");
-			skb_queue_tail(&cs->sq, skb);
-			spin_unlock_irqrestore(&cs->lock, flags);
-			break;
-		}
-		if (cs->debug & DEB_DLOG_HEX)
-			LogFrame(cs, skb->data, skb->len);
-		if (cs->debug & DEB_DLOG_VERBOSE)
-			dlogframe(cs, skb, 0);
-		cs->tx_skb = skb;
-		cs->tx_cnt = 0;
-#ifdef L2FRAME_DEBUG		/* psa */
-		if (cs->debug & L1_DEB_LAPD)
-			Logl2Frame(cs, skb, "PH_DATA_PULLED", 0);
-#endif
-		W6692_fill_fifo(cs);
-		spin_unlock_irqrestore(&cs->lock, flags);
-		break;
-	case (PH_PULL | REQUEST):
-#ifdef L2FRAME_DEBUG		/* psa */
-		if (cs->debug & L1_DEB_LAPD)
-			debugl1(cs, "-> PH_REQUEST_PULL");
-#endif
-		if (!cs->tx_skb) {
-			test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
-			st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
-		} else
-			test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
-		break;
-	case (HW_RESET | REQUEST):
-		spin_lock_irqsave(&cs->lock, flags);
-		if (cs->dc.w6692.ph_state == W_L1IND_DRD) {
-			ph_command(cs, W_L1CMD_ECK);
-			spin_unlock_irqrestore(&cs->lock, flags);
-		} else {
-			ph_command(cs, W_L1CMD_RST);
-			cs->dc.w6692.ph_state = W_L1CMD_RST;
-			spin_unlock_irqrestore(&cs->lock, flags);
-			W6692_new_ph(cs);
-		}
-		break;
-	case (HW_ENABLE | REQUEST):
-		spin_lock_irqsave(&cs->lock, flags);
-		ph_command(cs, W_L1CMD_ECK);
-		spin_unlock_irqrestore(&cs->lock, flags);
-		break;
-	case (HW_INFO3 | REQUEST):
-		spin_lock_irqsave(&cs->lock, flags);
-		ph_command(cs, W_L1CMD_AR8);
-		spin_unlock_irqrestore(&cs->lock, flags);
-		break;
-	case (HW_TESTLOOP | REQUEST):
-		val = 0;
-		if (1 & (long) arg)
-			val |= 0x0c;
-		if (2 & (long) arg)
-			val |= 0x3;
-		/* !!! not implemented yet */
-		break;
-	case (HW_DEACTIVATE | RESPONSE):
-		skb_queue_purge(&cs->rq);
-		skb_queue_purge(&cs->sq);
-		if (cs->tx_skb) {
-			dev_kfree_skb_any(cs->tx_skb);
-			cs->tx_skb = NULL;
-		}
-		if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
-			del_timer(&cs->dbusytimer);
-		if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
-			schedule_event(cs, D_CLEARBUSY);
-		break;
-	default:
-		if (cs->debug & L1_DEB_WARN)
-			debugl1(cs, "W6692_l1hw unknown %04x", pr);
-		break;
-	}
-}
-
-static void
-setstack_W6692(struct PStack *st, struct IsdnCardState *cs)
-{
-	st->l1.l1hw = W6692_l1hw;
-}
-
-static void
-DC_Close_W6692(struct IsdnCardState *cs)
-{
-}
-
-static void
-dbusy_timer_handler(struct timer_list *t)
-{
-	struct IsdnCardState *cs = from_timer(cs, t, dbusytimer);
-	struct PStack *stptr;
-	int rbch, star;
-	u_long flags;
-
-	spin_lock_irqsave(&cs->lock, flags);
-	if (test_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) {
-		rbch = cs->readW6692(cs, W_D_RBCH);
-		star = cs->readW6692(cs, W_D_STAR);
-		if (cs->debug)
-			debugl1(cs, "D-Channel Busy D_RBCH %02x D_STAR %02x",
-				rbch, star);
-		if (star & W_D_STAR_XBZ) {	/* D-Channel Busy */
-			test_and_set_bit(FLG_L1_DBUSY, &cs->HW_Flags);
-			stptr = cs->stlist;
-			while (stptr != NULL) {
-				stptr->l1.l1l2(stptr, PH_PAUSE | INDICATION, NULL);
-				stptr = stptr->next;
-			}
-		} else {
-			/* discard frame; reset transceiver */
-			test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags);
-			if (cs->tx_skb) {
-				dev_kfree_skb_any(cs->tx_skb);
-				cs->tx_cnt = 0;
-				cs->tx_skb = NULL;
-			} else {
-				printk(KERN_WARNING "HiSax: W6692 D-Channel Busy no skb\n");
-				debugl1(cs, "D-Channel Busy no skb");
-			}
-			cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_XRST);	/* Transmitter reset */
-			spin_unlock_irqrestore(&cs->lock, flags);
-			cs->irq_func(cs->irq, cs);
-			return;
-		}
-	}
-	spin_unlock_irqrestore(&cs->lock, flags);
-}
-
-static void
-W6692Bmode(struct BCState *bcs, int mode, int bchan)
-{
-	struct IsdnCardState *cs = bcs->cs;
-
-	if (cs->debug & L1_DEB_HSCX)
-		debugl1(cs, "w6692 %c mode %d ichan %d",
-			'1' + bchan, mode, bchan);
-	bcs->mode = mode;
-	bcs->channel = bchan;
-	bcs->hw.w6692.bchan = bchan;
-
-	switch (mode) {
-	case (L1_MODE_NULL):
-		cs->BC_Write_Reg(cs, bchan, W_B_MODE, 0);
-		break;
-	case (L1_MODE_TRANS):
-		cs->BC_Write_Reg(cs, bchan, W_B_MODE, W_B_MODE_MMS);
-		break;
-	case (L1_MODE_HDLC):
-		cs->BC_Write_Reg(cs, bchan, W_B_MODE, W_B_MODE_ITF);
-		cs->BC_Write_Reg(cs, bchan, W_B_ADM1, 0xff);
-		cs->BC_Write_Reg(cs, bchan, W_B_ADM2, 0xff);
-		break;
-	}
-	if (mode)
-		cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_RRST |
-				 W_B_CMDR_RACT | W_B_CMDR_XRST);
-	cs->BC_Write_Reg(cs, bchan, W_B_EXIM, 0x00);
-}
-
-static void
-W6692_l2l1(struct PStack *st, int pr, void *arg)
-{
-	struct sk_buff *skb = arg;
-	struct BCState *bcs = st->l1.bcs;
-	u_long flags;
-
-	switch (pr) {
-	case (PH_DATA | REQUEST):
-		spin_lock_irqsave(&bcs->cs->lock, flags);
-		if (bcs->tx_skb) {
-			skb_queue_tail(&bcs->squeue, skb);
-		} else {
-			bcs->tx_skb = skb;
-			test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
-			bcs->hw.w6692.count = 0;
-			bcs->cs->BC_Send_Data(bcs);
-		}
-		spin_unlock_irqrestore(&bcs->cs->lock, flags);
-		break;
-	case (PH_PULL | INDICATION):
-		if (bcs->tx_skb) {
-			printk(KERN_WARNING "W6692_l2l1: this shouldn't happen\n");
-			break;
-		}
-		spin_lock_irqsave(&bcs->cs->lock, flags);
-		test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
-		bcs->tx_skb = skb;
-		bcs->hw.w6692.count = 0;
-		bcs->cs->BC_Send_Data(bcs);
-		spin_unlock_irqrestore(&bcs->cs->lock, flags);
-		break;
-	case (PH_PULL | REQUEST):
-		if (!bcs->tx_skb) {
-			test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
-			st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
-		} else
-			test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
-		break;
-	case (PH_ACTIVATE | REQUEST):
-		spin_lock_irqsave(&bcs->cs->lock, flags);
-		test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag);
-		W6692Bmode(bcs, st->l1.mode, st->l1.bc);
-		spin_unlock_irqrestore(&bcs->cs->lock, flags);
-		l1_msg_b(st, pr, arg);
-		break;
-	case (PH_DEACTIVATE | REQUEST):
-		l1_msg_b(st, pr, arg);
-		break;
-	case (PH_DEACTIVATE | CONFIRM):
-		spin_lock_irqsave(&bcs->cs->lock, flags);
-		test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag);
-		test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
-		W6692Bmode(bcs, 0, st->l1.bc);
-		spin_unlock_irqrestore(&bcs->cs->lock, flags);
-		st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
-		break;
-	}
-}
-
-static void
-close_w6692state(struct BCState *bcs)
-{
-	W6692Bmode(bcs, 0, bcs->channel);
-	if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
-		kfree(bcs->hw.w6692.rcvbuf);
-		bcs->hw.w6692.rcvbuf = NULL;
-		kfree(bcs->blog);
-		bcs->blog = NULL;
-		skb_queue_purge(&bcs->rqueue);
-		skb_queue_purge(&bcs->squeue);
-		if (bcs->tx_skb) {
-			dev_kfree_skb_any(bcs->tx_skb);
-			bcs->tx_skb = NULL;
-			test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
-		}
-	}
-}
-
-static int
-open_w6692state(struct IsdnCardState *cs, struct BCState *bcs)
-{
-	if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
-		if (!(bcs->hw.w6692.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) {
-			printk(KERN_WARNING
-			       "HiSax: No memory for w6692.rcvbuf\n");
-			test_and_clear_bit(BC_FLG_INIT, &bcs->Flag);
-			return (1);
-		}
-		if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) {
-			printk(KERN_WARNING
-			       "HiSax: No memory for bcs->blog\n");
-			test_and_clear_bit(BC_FLG_INIT, &bcs->Flag);
-			kfree(bcs->hw.w6692.rcvbuf);
-			bcs->hw.w6692.rcvbuf = NULL;
-			return (2);
-		}
-		skb_queue_head_init(&bcs->rqueue);
-		skb_queue_head_init(&bcs->squeue);
-	}
-	bcs->tx_skb = NULL;
-	test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
-	bcs->event = 0;
-	bcs->hw.w6692.rcvidx = 0;
-	bcs->tx_cnt = 0;
-	return (0);
-}
-
-static int
-setstack_w6692(struct PStack *st, struct BCState *bcs)
-{
-	bcs->channel = st->l1.bc;
-	if (open_w6692state(st->l1.hardware, bcs))
-		return (-1);
-	st->l1.bcs = bcs;
-	st->l2.l2l1 = W6692_l2l1;
-	setstack_manager(st);
-	bcs->st = st;
-	setstack_l1_B(st);
-	return (0);
-}
-
-static void resetW6692(struct IsdnCardState *cs)
-{
-	cs->writeW6692(cs, W_D_CTL, W_D_CTL_SRST);
-	mdelay(10);
-	cs->writeW6692(cs, W_D_CTL, 0x00);
-	mdelay(10);
-	cs->writeW6692(cs, W_IMASK, 0xff);
-	cs->writeW6692(cs, W_D_SAM, 0xff);
-	cs->writeW6692(cs, W_D_TAM, 0xff);
-	cs->writeW6692(cs, W_D_EXIM, 0x00);
-	cs->writeW6692(cs, W_D_MODE, W_D_MODE_RACT);
-	cs->writeW6692(cs, W_IMASK, 0x18);
-	if (cs->subtyp == W6692_USR) {
-		/* seems that USR implemented some power control features
-		 * Pin 79 is connected to the oscilator circuit so we
-		 * have to handle it here
-		 */
-		cs->writeW6692(cs, W_PCTL, 0x80);
-		cs->writeW6692(cs, W_XDATA, 0x00);
-	}
-}
-
-static void initW6692(struct IsdnCardState *cs, int part)
-{
-	if (part & 1) {
-		cs->setstack_d = setstack_W6692;
-		cs->DC_Close = DC_Close_W6692;
-		timer_setup(&cs->dbusytimer, dbusy_timer_handler, 0);
-		resetW6692(cs);
-		ph_command(cs, W_L1CMD_RST);
-		cs->dc.w6692.ph_state = W_L1CMD_RST;
-		W6692_new_ph(cs);
-		ph_command(cs, W_L1CMD_ECK);
-
-		cs->bcs[0].BC_SetStack = setstack_w6692;
-		cs->bcs[1].BC_SetStack = setstack_w6692;
-		cs->bcs[0].BC_Close = close_w6692state;
-		cs->bcs[1].BC_Close = close_w6692state;
-		W6692Bmode(cs->bcs, 0, 0);
-		W6692Bmode(cs->bcs + 1, 0, 0);
-	}
-	if (part & 2) {
-		/* Reenable all IRQ */
-		cs->writeW6692(cs, W_IMASK, 0x18);
-		cs->writeW6692(cs, W_D_EXIM, 0x00);
-		cs->BC_Write_Reg(cs, 0, W_B_EXIM, 0x00);
-		cs->BC_Write_Reg(cs, 1, W_B_EXIM, 0x00);
-		/* Reset D-chan receiver and transmitter */
-		cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RRST | W_D_CMDR_XRST);
-	}
-}
-
-/* Interface functions */
-
-static u_char
-ReadW6692(struct IsdnCardState *cs, u_char offset)
-{
-	return (inb(cs->hw.w6692.iobase + offset));
-}
-
-static void
-WriteW6692(struct IsdnCardState *cs, u_char offset, u_char value)
-{
-	outb(value, cs->hw.w6692.iobase + offset);
-}
-
-static void
-ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
-{
-	insb(cs->hw.w6692.iobase + W_D_RFIFO, data, size);
-}
-
-static void
-WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
-{
-	outsb(cs->hw.w6692.iobase + W_D_XFIFO, data, size);
-}
-
-static u_char
-ReadW6692B(struct IsdnCardState *cs, int bchan, u_char offset)
-{
-	return (inb(cs->hw.w6692.iobase + (bchan ? 0x40 : 0) + offset));
-}
-
-static void
-WriteW6692B(struct IsdnCardState *cs, int bchan, u_char offset, u_char value)
-{
-	outb(value, cs->hw.w6692.iobase + (bchan ? 0x40 : 0) + offset);
-}
-
-static int
-w6692_card_msg(struct IsdnCardState *cs, int mt, void *arg)
-{
-	switch (mt) {
-	case CARD_RESET:
-		resetW6692(cs);
-		return (0);
-	case CARD_RELEASE:
-		cs->writeW6692(cs, W_IMASK, 0xff);
-		release_region(cs->hw.w6692.iobase, 256);
-		if (cs->subtyp == W6692_USR) {
-			cs->writeW6692(cs, W_XDATA, 0x04);
-		}
-		return (0);
-	case CARD_INIT:
-		initW6692(cs, 3);
-		return (0);
-	case CARD_TEST:
-		return (0);
-	}
-	return (0);
-}
-
-static int id_idx;
-
-static struct pci_dev *dev_w6692 = NULL;
-
-int setup_w6692(struct IsdnCard *card)
-{
-	struct IsdnCardState *cs = card->cs;
-	char tmp[64];
-	u_char found = 0;
-	u_char pci_irq = 0;
-	u_int pci_ioaddr = 0;
-
-	strcpy(tmp, w6692_revision);
-	printk(KERN_INFO "HiSax: W6692 driver Rev. %s\n", HiSax_getrev(tmp));
-	if (cs->typ != ISDN_CTYPE_W6692)
-		return (0);
-
-	while (id_list[id_idx].vendor_id) {
-		dev_w6692 = hisax_find_pci_device(id_list[id_idx].vendor_id,
-						  id_list[id_idx].device_id,
-						  dev_w6692);
-		if (dev_w6692) {
-			if (pci_enable_device(dev_w6692))
-				continue;
-			cs->subtyp = id_idx;
-			break;
-		}
-		id_idx++;
-	}
-	if (dev_w6692) {
-		found = 1;
-		pci_irq = dev_w6692->irq;
-		/* I think address 0 is allways the configuration area */
-		/* and address 1 is the real IO space KKe 03.09.99 */
-		pci_ioaddr = pci_resource_start(dev_w6692, 1);
-		/* USR ISDN PCI card TA need some special handling */
-		if (cs->subtyp == W6692_WINBOND) {
-			if ((W6692_SV_USR == dev_w6692->subsystem_vendor) &&
-			    (W6692_SD_USR == dev_w6692->subsystem_device)) {
-				cs->subtyp = W6692_USR;
-			}
-		}
-	}
-	if (!found) {
-		printk(KERN_WARNING "W6692: No PCI card found\n");
-		return (0);
-	}
-	cs->irq = pci_irq;
-	if (!cs->irq) {
-		printk(KERN_WARNING "W6692: No IRQ for PCI card found\n");
-		return (0);
-	}
-	if (!pci_ioaddr) {
-		printk(KERN_WARNING "W6692: NO I/O Base Address found\n");
-		return (0);
-	}
-	cs->hw.w6692.iobase = pci_ioaddr;
-	printk(KERN_INFO "Found: %s %s, I/O base: 0x%x, irq: %d\n",
-	       id_list[cs->subtyp].vendor_name, id_list[cs->subtyp].card_name,
-	       pci_ioaddr, pci_irq);
-	if (!request_region(cs->hw.w6692.iobase, 256, id_list[cs->subtyp].card_name)) {
-		printk(KERN_WARNING
-		       "HiSax: %s I/O ports %x-%x already in use\n",
-		       id_list[cs->subtyp].card_name,
-		       cs->hw.w6692.iobase,
-		       cs->hw.w6692.iobase + 255);
-		return (0);
-	}
-
-	printk(KERN_INFO
-	       "HiSax: %s config irq:%d I/O:%x\n",
-	       id_list[cs->subtyp].card_name, cs->irq,
-	       cs->hw.w6692.iobase);
-
-	INIT_WORK(&cs->tqueue, W6692_bh);
-	cs->readW6692 = &ReadW6692;
-	cs->writeW6692 = &WriteW6692;
-	cs->readisacfifo = &ReadISACfifo;
-	cs->writeisacfifo = &WriteISACfifo;
-	cs->BC_Read_Reg = &ReadW6692B;
-	cs->BC_Write_Reg = &WriteW6692B;
-	cs->BC_Send_Data = &W6692B_fill_fifo;
-	cs->cardmsg = &w6692_card_msg;
-	cs->irq_func = &W6692_interrupt;
-	cs->irq_flags |= IRQF_SHARED;
-	W6692Version(cs, "W6692:");
-	printk(KERN_INFO "W6692 ISTA=0x%X\n", ReadW6692(cs, W_ISTA));
-	printk(KERN_INFO "W6692 IMASK=0x%X\n", ReadW6692(cs, W_IMASK));
-	printk(KERN_INFO "W6692 D_EXIR=0x%X\n", ReadW6692(cs, W_D_EXIR));
-	printk(KERN_INFO "W6692 D_EXIM=0x%X\n", ReadW6692(cs, W_D_EXIM));
-	printk(KERN_INFO "W6692 D_RSTA=0x%X\n", ReadW6692(cs, W_D_RSTA));
-	return (1);
-}