drivers/isdn/hisax/avm_a1.c - linux/kernel/git/davem/net - Git at Google

 /* $Id: avm_a1.c,v 2.15.2.4 2004/01/13 21:46:03 keil Exp $
  *
  * low level stuff for AVM A1 (Fritz) isdn cards
  *
  * Author       Karsten Keil
  * Copyright    by Karsten Keil      <keil@isdn4linux.de>
  *
  * 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 "isac.h"
 #include "hscx.h"
 #include "isdnl1.h"

 extern const char *CardType[];
 static const char *avm_revision = "$Revision: 2.15.2.4 $";

 #define	 AVM_A1_STAT_ISAC	0x01
 #define	 AVM_A1_STAT_HSCX	0x02
 #define	 AVM_A1_STAT_TIMER	0x04

 #define byteout(addr,val) outb(val,addr)
 #define bytein(addr) inb(addr)

 static inline u_char
 readreg(unsigned int adr, u_char off)
 {
 	return (bytein(adr + off));
 }

 static inline void
 writereg(unsigned int adr, u_char off, u_char data)
 {
 	byteout(adr + off, data);
 }


 static inline void
 read_fifo(unsigned int adr, u_char * data, int size)
 {
 	insb(adr, data, size);
 }

 static void
 write_fifo(unsigned int adr, u_char * data, int size)
 {
 	outsb(adr, data, size);
 }

 /* Interface functions */

 static u_char
 ReadISAC(struct IsdnCardState *cs, u_char offset)
 {
 	return (readreg(cs->hw.avm.isac, offset));
 }

 static void
 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
 {
 	writereg(cs->hw.avm.isac, offset, value);
 }

 static void
 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
 {
 	read_fifo(cs->hw.avm.isacfifo, data, size);
 }

 static void
 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
 {
 	write_fifo(cs->hw.avm.isacfifo, data, size);
 }

 static u_char
 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
 {
 	return (readreg(cs->hw.avm.hscx[hscx], offset));
 }

 static void
 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
 {
 	writereg(cs->hw.avm.hscx[hscx], offset, value);
 }

 /*
  * fast interrupt HSCX stuff goes here
  */

 #define READHSCX(cs, nr, reg) readreg(cs->hw.avm.hscx[nr], reg)
 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.avm.hscx[nr], reg, data)
 #define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)

 #include "hscx_irq.c"

 static irqreturn_t
 avm_a1_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 {
 	struct IsdnCardState *cs = dev_id;
 	u_char val, sval;
 	u_long flags;

 	spin_lock_irqsave(&cs->lock, flags);
 	while (((sval = bytein(cs->hw.avm.cfg_reg)) & 0xf) != 0x7) {
 		if (!(sval & AVM_A1_STAT_TIMER)) {
 			byteout(cs->hw.avm.cfg_reg, 0x1E);
 			sval = bytein(cs->hw.avm.cfg_reg);
 		} else if (cs->debug & L1_DEB_INTSTAT)
 			debugl1(cs, "avm IntStatus %x", sval);
 		if (!(sval & AVM_A1_STAT_HSCX)) {
 			val = readreg(cs->hw.avm.hscx[1], HSCX_ISTA);
 			if (val)
 				hscx_int_main(cs, val);
 		}
 		if (!(sval & AVM_A1_STAT_ISAC)) {
 			val = readreg(cs->hw.avm.isac, ISAC_ISTA);
 			if (val)
 				isac_interrupt(cs, val);
 		}
 	}
 	writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0xFF);
 	writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0xFF);
 	writereg(cs->hw.avm.isac, ISAC_MASK, 0xFF);
 	writereg(cs->hw.avm.isac, ISAC_MASK, 0x0);
 	writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0x0);
 	writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0x0);
 	spin_unlock_irqrestore(&cs->lock, flags);
 	return IRQ_HANDLED;
 }

 static inline void
 release_ioregs(struct IsdnCardState *cs, int mask)
 {
 	release_region(cs->hw.avm.cfg_reg, 8);
 	if (mask & 1)
 		release_region(cs->hw.avm.isac + 32, 32);
 	if (mask & 2)
 		release_region(cs->hw.avm.isacfifo, 1);
 	if (mask & 4)
 		release_region(cs->hw.avm.hscx[0] + 32, 32);
 	if (mask & 8)
 		release_region(cs->hw.avm.hscxfifo[0], 1);
 	if (mask & 0x10)
 		release_region(cs->hw.avm.hscx[1] + 32, 32);
 	if (mask & 0x20)
 		release_region(cs->hw.avm.hscxfifo[1], 1);
 }

 static int
 AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 {
 	u_long flags;

 	switch (mt) {
 		case CARD_RESET:
 			return(0);
 		case CARD_RELEASE:
 			release_ioregs(cs, 0x3f);
 			return(0);
 		case CARD_INIT:
 			spin_lock_irqsave(&cs->lock, flags);
 			inithscxisac(cs, 1);
 			byteout(cs->hw.avm.cfg_reg, 0x16);
 			byteout(cs->hw.avm.cfg_reg, 0x1E);
 			inithscxisac(cs, 2);
 			spin_unlock_irqrestore(&cs->lock, flags);
 			return(0);
 		case CARD_TEST:
 			return(0);
 	}
 	return(0);
 }

 int __init
 setup_avm_a1(struct IsdnCard *card)
 {
 	u_char val;
 	struct IsdnCardState *cs = card->cs;
 	char tmp[64];

 	strcpy(tmp, avm_revision);
 	printk(KERN_INFO "HiSax: AVM driver Rev. %s\n", HiSax_getrev(tmp));
 	if (cs->typ != ISDN_CTYPE_A1)
 		return (0);

 	cs->hw.avm.cfg_reg = card->para[1] + 0x1800;
 	cs->hw.avm.isac = card->para[1] + 0x1400 - 0x20;
 	cs->hw.avm.hscx[0] = card->para[1] + 0x400 - 0x20;
 	cs->hw.avm.hscx[1] = card->para[1] + 0xc00 - 0x20;
 	cs->hw.avm.isacfifo = card->para[1] + 0x1000;
 	cs->hw.avm.hscxfifo[0] = card->para[1];
 	cs->hw.avm.hscxfifo[1] = card->para[1] + 0x800;
 	cs->irq = card->para[0];
 	if (!request_region(cs->hw.avm.cfg_reg, 8, "avm cfg")) {
 		printk(KERN_WARNING
 		       "HiSax: %s config port %x-%x already in use\n",
 		       CardType[card->typ],
 		       cs->hw.avm.cfg_reg,
 		       cs->hw.avm.cfg_reg + 8);
 		return (0);
 	}
 	if (!request_region(cs->hw.avm.isac + 32, 32, "HiSax isac")) {
 		printk(KERN_WARNING
 		       "HiSax: %s isac ports %x-%x already in use\n",
 		       CardType[cs->typ],
 		       cs->hw.avm.isac + 32,
 		       cs->hw.avm.isac + 64);
 		release_ioregs(cs, 0);
 		return (0);
 	}
 	if (!request_region(cs->hw.avm.isacfifo, 1, "HiSax isac fifo")) {
 		printk(KERN_WARNING
 		       "HiSax: %s isac fifo port %x already in use\n",
 		       CardType[cs->typ],
 		       cs->hw.avm.isacfifo);
 		release_ioregs(cs, 1);
 		return (0);
 	}
 	if (!request_region(cs->hw.avm.hscx[0] + 32, 32, "HiSax hscx A")) {
 		printk(KERN_WARNING
 		       "HiSax: %s hscx A ports %x-%x already in use\n",
 		       CardType[cs->typ],
 		       cs->hw.avm.hscx[0] + 32,
 		       cs->hw.avm.hscx[0] + 64);
 		release_ioregs(cs, 3);
 		return (0);
 	}
 	if (!request_region(cs->hw.avm.hscxfifo[0], 1, "HiSax hscx A fifo")) {
 		printk(KERN_WARNING
 		       "HiSax: %s hscx A fifo port %x already in use\n",
 		       CardType[cs->typ],
 		       cs->hw.avm.hscxfifo[0]);
 		release_ioregs(cs, 7);
 		return (0);
 	}
 	if (!request_region(cs->hw.avm.hscx[1] + 32, 32, "HiSax hscx B")) {
 		printk(KERN_WARNING
 		       "HiSax: %s hscx B ports %x-%x already in use\n",
 		       CardType[cs->typ],
 		       cs->hw.avm.hscx[1] + 32,
 		       cs->hw.avm.hscx[1] + 64);
 		release_ioregs(cs, 0xf);
 		return (0);
 	}
 	if (!request_region(cs->hw.avm.hscxfifo[1], 1, "HiSax hscx B fifo")) {
 		printk(KERN_WARNING
 		       "HiSax: %s hscx B fifo port %x already in use\n",
 		       CardType[cs->typ],
 		       cs->hw.avm.hscxfifo[1]);
 		release_ioregs(cs, 0x1f);
 		return (0);
 	}
 	byteout(cs->hw.avm.cfg_reg, 0x0);
 	HZDELAY(HZ / 5 + 1);
 	byteout(cs->hw.avm.cfg_reg, 0x1);
 	HZDELAY(HZ / 5 + 1);
 	byteout(cs->hw.avm.cfg_reg, 0x0);
 	HZDELAY(HZ / 5 + 1);
 	val = cs->irq;
 	if (val == 9)
 		val = 2;
 	byteout(cs->hw.avm.cfg_reg + 1, val);
 	HZDELAY(HZ / 5 + 1);
 	byteout(cs->hw.avm.cfg_reg, 0x0);
 	HZDELAY(HZ / 5 + 1);

 	val = bytein(cs->hw.avm.cfg_reg);
 	printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
 	       cs->hw.avm.cfg_reg, val);
 	val = bytein(cs->hw.avm.cfg_reg + 3);
 	printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
 	       cs->hw.avm.cfg_reg + 3, val);
 	val = bytein(cs->hw.avm.cfg_reg + 2);
 	printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
 	       cs->hw.avm.cfg_reg + 2, val);
 	val = bytein(cs->hw.avm.cfg_reg);
 	printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
 	       cs->hw.avm.cfg_reg, val);

 	printk(KERN_INFO
 	       "HiSax: %s config irq:%d cfg:0x%X\n",
 	       CardType[cs->typ], cs->irq,
 	       cs->hw.avm.cfg_reg);
 	printk(KERN_INFO
 	       "HiSax: isac:0x%X/0x%X\n",
 	       cs->hw.avm.isac + 32, cs->hw.avm.isacfifo);
 	printk(KERN_INFO
 	       "HiSax: hscx A:0x%X/0x%X  hscx B:0x%X/0x%X\n",
 	       cs->hw.avm.hscx[0] + 32, cs->hw.avm.hscxfifo[0],
 	       cs->hw.avm.hscx[1] + 32, cs->hw.avm.hscxfifo[1]);

 	cs->readisac = &ReadISAC;
 	cs->writeisac = &WriteISAC;
 	cs->readisacfifo = &ReadISACfifo;
 	cs->writeisacfifo = &WriteISACfifo;
 	cs->BC_Read_Reg = &ReadHSCX;
 	cs->BC_Write_Reg = &WriteHSCX;
 	cs->BC_Send_Data = &hscx_fill_fifo;
 	setup_isac(cs);
 	cs->cardmsg = &AVM_card_msg;
 	cs->irq_func = &avm_a1_interrupt;
 	ISACVersion(cs, "AVM A1:");
 	if (HscxVersion(cs, "AVM A1:")) {
 		printk(KERN_WARNING
 		       "AVM A1: wrong HSCX versions check IO address\n");
 		release_ioregs(cs, 0x3f);
 		return (0);
 	}
 	return (1);
 }
	/* $Id: avm_a1.c,v 2.15.2.4 2004/01/13 21:46:03 keil Exp $
	*
	* low level stuff for AVM A1 (Fritz) isdn cards
	*
	* Author Karsten Keil
	* Copyright by Karsten Keil <keil@isdn4linux.de>
	*
	* 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 "isac.h"
	#include "hscx.h"
	#include "isdnl1.h"

	extern const char *CardType[];
	static const char *avm_revision = "$Revision: 2.15.2.4 $";

	#define AVM_A1_STAT_ISAC 0x01
	#define AVM_A1_STAT_HSCX 0x02
	#define AVM_A1_STAT_TIMER 0x04

	#define byteout(addr,val) outb(val,addr)
	#define bytein(addr) inb(addr)

	static inline u_char
	readreg(unsigned int adr, u_char off)
	{
	return (bytein(adr + off));
	}

	static inline void
	writereg(unsigned int adr, u_char off, u_char data)
	{
	byteout(adr + off, data);
	}


	static inline void
	read_fifo(unsigned int adr, u_char * data, int size)
	{
	insb(adr, data, size);
	}

	static void
	write_fifo(unsigned int adr, u_char * data, int size)
	{
	outsb(adr, data, size);
	}

	/* Interface functions */

	static u_char
	ReadISAC(struct IsdnCardState *cs, u_char offset)
	{
	return (readreg(cs->hw.avm.isac, offset));
	}

	static void
	WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
	{
	writereg(cs->hw.avm.isac, offset, value);
	}

	static void
	ReadISACfifo(struct IsdnCardState cs, u_char data, int size)
	{
	read_fifo(cs->hw.avm.isacfifo, data, size);
	}

	static void
	WriteISACfifo(struct IsdnCardState cs, u_char data, int size)
	{
	write_fifo(cs->hw.avm.isacfifo, data, size);
	}

	static u_char
	ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
	{
	return (readreg(cs->hw.avm.hscx[hscx], offset));
	}

	static void
	WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
	{
	writereg(cs->hw.avm.hscx[hscx], offset, value);
	}

	/*
	* fast interrupt HSCX stuff goes here
	*/

	#define READHSCX(cs, nr, reg) readreg(cs->hw.avm.hscx[nr], reg)
	#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.avm.hscx[nr], reg, data)
	#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
	#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)

	#include "hscx_irq.c"

	static irqreturn_t
	avm_a1_interrupt(int intno, void dev_id, struct pt_regs regs)
	{
	struct IsdnCardState *cs = dev_id;
	u_char val, sval;
	u_long flags;

	spin_lock_irqsave(&cs->lock, flags);
	while (((sval = bytein(cs->hw.avm.cfg_reg)) & 0xf) != 0x7) {
	if (!(sval & AVM_A1_STAT_TIMER)) {
	byteout(cs->hw.avm.cfg_reg, 0x1E);
	sval = bytein(cs->hw.avm.cfg_reg);
	} else if (cs->debug & L1_DEB_INTSTAT)
	debugl1(cs, "avm IntStatus %x", sval);
	if (!(sval & AVM_A1_STAT_HSCX)) {
	val = readreg(cs->hw.avm.hscx[1], HSCX_ISTA);
	if (val)
	hscx_int_main(cs, val);
	}
	if (!(sval & AVM_A1_STAT_ISAC)) {
	val = readreg(cs->hw.avm.isac, ISAC_ISTA);
	if (val)
	isac_interrupt(cs, val);
	}
	}
	writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0xFF);
	writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0xFF);
	writereg(cs->hw.avm.isac, ISAC_MASK, 0xFF);
	writereg(cs->hw.avm.isac, ISAC_MASK, 0x0);
	writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0x0);
	writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0x0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
	}

	static inline void
	release_ioregs(struct IsdnCardState *cs, int mask)
	{
	release_region(cs->hw.avm.cfg_reg, 8);
	if (mask & 1)
	release_region(cs->hw.avm.isac + 32, 32);
	if (mask & 2)
	release_region(cs->hw.avm.isacfifo, 1);
	if (mask & 4)
	release_region(cs->hw.avm.hscx[0] + 32, 32);
	if (mask & 8)
	release_region(cs->hw.avm.hscxfifo[0], 1);
	if (mask & 0x10)
	release_region(cs->hw.avm.hscx[1] + 32, 32);
	if (mask & 0x20)
	release_region(cs->hw.avm.hscxfifo[1], 1);
	}

	static int
	AVM_card_msg(struct IsdnCardState cs, int mt, void arg)
	{
	u_long flags;

	switch (mt) {
	case CARD_RESET:
	return(0);
	case CARD_RELEASE:
	release_ioregs(cs, 0x3f);
	return(0);
	case CARD_INIT:
	spin_lock_irqsave(&cs->lock, flags);
	inithscxisac(cs, 1);
	byteout(cs->hw.avm.cfg_reg, 0x16);
	byteout(cs->hw.avm.cfg_reg, 0x1E);
	inithscxisac(cs, 2);
	spin_unlock_irqrestore(&cs->lock, flags);
	return(0);
	case CARD_TEST:
	return(0);
	}
	return(0);
	}

	int __init
	setup_avm_a1(struct IsdnCard *card)
	{
	u_char val;
	struct IsdnCardState *cs = card->cs;
	char tmp[64];

	strcpy(tmp, avm_revision);
	printk(KERN_INFO "HiSax: AVM driver Rev. %s\n", HiSax_getrev(tmp));
	if (cs->typ != ISDN_CTYPE_A1)
	return (0);

	cs->hw.avm.cfg_reg = card->para[1] + 0x1800;
	cs->hw.avm.isac = card->para[1] + 0x1400 - 0x20;
	cs->hw.avm.hscx[0] = card->para[1] + 0x400 - 0x20;
	cs->hw.avm.hscx[1] = card->para[1] + 0xc00 - 0x20;
	cs->hw.avm.isacfifo = card->para[1] + 0x1000;
	cs->hw.avm.hscxfifo[0] = card->para[1];
	cs->hw.avm.hscxfifo[1] = card->para[1] + 0x800;
	cs->irq = card->para[0];
	if (!request_region(cs->hw.avm.cfg_reg, 8, "avm cfg")) {
	printk(KERN_WARNING
	"HiSax: %s config port %x-%x already in use\n",
	CardType[card->typ],
	cs->hw.avm.cfg_reg,
	cs->hw.avm.cfg_reg + 8);
	return (0);
	}
	if (!request_region(cs->hw.avm.isac + 32, 32, "HiSax isac")) {
	printk(KERN_WARNING
	"HiSax: %s isac ports %x-%x already in use\n",
	CardType[cs->typ],
	cs->hw.avm.isac + 32,
	cs->hw.avm.isac + 64);
	release_ioregs(cs, 0);
	return (0);
	}
	if (!request_region(cs->hw.avm.isacfifo, 1, "HiSax isac fifo")) {
	printk(KERN_WARNING
	"HiSax: %s isac fifo port %x already in use\n",
	CardType[cs->typ],
	cs->hw.avm.isacfifo);
	release_ioregs(cs, 1);
	return (0);
	}
	if (!request_region(cs->hw.avm.hscx[0] + 32, 32, "HiSax hscx A")) {
	printk(KERN_WARNING
	"HiSax: %s hscx A ports %x-%x already in use\n",
	CardType[cs->typ],
	cs->hw.avm.hscx[0] + 32,
	cs->hw.avm.hscx[0] + 64);
	release_ioregs(cs, 3);
	return (0);
	}
	if (!request_region(cs->hw.avm.hscxfifo[0], 1, "HiSax hscx A fifo")) {
	printk(KERN_WARNING
	"HiSax: %s hscx A fifo port %x already in use\n",
	CardType[cs->typ],
	cs->hw.avm.hscxfifo[0]);
	release_ioregs(cs, 7);
	return (0);
	}
	if (!request_region(cs->hw.avm.hscx[1] + 32, 32, "HiSax hscx B")) {
	printk(KERN_WARNING
	"HiSax: %s hscx B ports %x-%x already in use\n",
	CardType[cs->typ],
	cs->hw.avm.hscx[1] + 32,
	cs->hw.avm.hscx[1] + 64);
	release_ioregs(cs, 0xf);
	return (0);
	}
	if (!request_region(cs->hw.avm.hscxfifo[1], 1, "HiSax hscx B fifo")) {
	printk(KERN_WARNING
	"HiSax: %s hscx B fifo port %x already in use\n",
	CardType[cs->typ],
	cs->hw.avm.hscxfifo[1]);
	release_ioregs(cs, 0x1f);
	return (0);
	}
	byteout(cs->hw.avm.cfg_reg, 0x0);
	HZDELAY(HZ / 5 + 1);
	byteout(cs->hw.avm.cfg_reg, 0x1);
	HZDELAY(HZ / 5 + 1);
	byteout(cs->hw.avm.cfg_reg, 0x0);
	HZDELAY(HZ / 5 + 1);
	val = cs->irq;
	if (val == 9)
	val = 2;
	byteout(cs->hw.avm.cfg_reg + 1, val);
	HZDELAY(HZ / 5 + 1);
	byteout(cs->hw.avm.cfg_reg, 0x0);
	HZDELAY(HZ / 5 + 1);

	val = bytein(cs->hw.avm.cfg_reg);
	printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
	cs->hw.avm.cfg_reg, val);
	val = bytein(cs->hw.avm.cfg_reg + 3);
	printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
	cs->hw.avm.cfg_reg + 3, val);
	val = bytein(cs->hw.avm.cfg_reg + 2);
	printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
	cs->hw.avm.cfg_reg + 2, val);
	val = bytein(cs->hw.avm.cfg_reg);
	printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
	cs->hw.avm.cfg_reg, val);

	printk(KERN_INFO
	"HiSax: %s config irq:%d cfg:0x%X\n",
	CardType[cs->typ], cs->irq,
	cs->hw.avm.cfg_reg);
	printk(KERN_INFO
	"HiSax: isac:0x%X/0x%X\n",
	cs->hw.avm.isac + 32, cs->hw.avm.isacfifo);
	printk(KERN_INFO
	"HiSax: hscx A:0x%X/0x%X hscx B:0x%X/0x%X\n",
	cs->hw.avm.hscx[0] + 32, cs->hw.avm.hscxfifo[0],
	cs->hw.avm.hscx[1] + 32, cs->hw.avm.hscxfifo[1]);

	cs->readisac = &ReadISAC;
	cs->writeisac = &WriteISAC;
	cs->readisacfifo = &ReadISACfifo;
	cs->writeisacfifo = &WriteISACfifo;
	cs->BC_Read_Reg = &ReadHSCX;
	cs->BC_Write_Reg = &WriteHSCX;
	cs->BC_Send_Data = &hscx_fill_fifo;
	setup_isac(cs);
	cs->cardmsg = &AVM_card_msg;
	cs->irq_func = &avm_a1_interrupt;
	ISACVersion(cs, "AVM A1:");
	if (HscxVersion(cs, "AVM A1:")) {
	printk(KERN_WARNING
	"AVM A1: wrong HSCX versions check IO address\n");
	release_ioregs(cs, 0x3f);
	return (0);
	}
	return (1);
	}