drivers/isdn/hisax/asuscom.c - third_party/linux - Git at Google

 /* $Id: asuscom.c,v 1.14.2.4 2004/01/13 23:48:39 keil Exp $
  *
  * low level stuff for ASUSCOM NETWORK INC. ISDNLink 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.
  *
  * Thanks to  ASUSCOM NETWORK INC. Taiwan and  Dynalink NL for information
  *
  */

 #include <linux/init.h>
 #include <linux/isapnp.h>
 #include "hisax.h"
 #include "isac.h"
 #include "ipac.h"
 #include "hscx.h"
 #include "isdnl1.h"

 static const char *Asuscom_revision = "$Revision: 1.14.2.4 $";

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

 #define ASUS_ISAC	0
 #define ASUS_HSCX	1
 #define ASUS_ADR	2
 #define ASUS_CTRL_U7	3
 #define ASUS_CTRL_POTS	5

 #define ASUS_IPAC_ALE	0
 #define ASUS_IPAC_DATA	1

 #define ASUS_ISACHSCX	1
 #define ASUS_IPAC	2

 /* CARD_ADR (Write) */
 #define ASUS_RESET      0x80	/* Bit 7 Reset-Leitung */

 static inline u_char
 readreg(unsigned int ale, unsigned int adr, u_char off)
 {
 	register u_char ret;

 	byteout(ale, off);
 	ret = bytein(adr);
 	return (ret);
 }

 static inline void
 readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
 {
 	byteout(ale, off);
 	insb(adr, data, size);
 }


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

 static inline void
 writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
 {
 	byteout(ale, off);
 	outsb(adr, data, size);
 }

 /* Interface functions */

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

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

 static void
 ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
 {
 	readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
 }

 static void
 WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
 {
 	writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
 }

 static u_char
 ReadISAC_IPAC(struct IsdnCardState *cs, u_char offset)
 {
 	return (readreg(cs->hw.asus.adr, cs->hw.asus.isac, offset | 0x80));
 }

 static void
 WriteISAC_IPAC(struct IsdnCardState *cs, u_char offset, u_char value)
 {
 	writereg(cs->hw.asus.adr, cs->hw.asus.isac, offset | 0x80, value);
 }

 static void
 ReadISACfifo_IPAC(struct IsdnCardState *cs, u_char *data, int size)
 {
 	readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
 }

 static void
 WriteISACfifo_IPAC(struct IsdnCardState *cs, u_char *data, int size)
 {
 	writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
 }

 static u_char
 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
 {
 	return (readreg(cs->hw.asus.adr,
 			cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0)));
 }

 static void
 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
 {
 	writereg(cs->hw.asus.adr,
 		 cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0), value);
 }

 /*
  * fast interrupt HSCX stuff goes here
  */

 #define READHSCX(cs, nr, reg) readreg(cs->hw.asus.adr,			\
 				      cs->hw.asus.hscx, reg + (nr ? 0x40 : 0))
 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.asus.adr,		\
 					      cs->hw.asus.hscx, reg + (nr ? 0x40 : 0), data)

 #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.asus.adr,	\
 						cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)

 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.asus.adr,	\
 						  cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)

 #include "hscx_irq.c"

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

 	spin_lock_irqsave(&cs->lock, flags);
 	val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
 Start_HSCX:
 	if (val)
 		hscx_int_main(cs, val);
 	val = readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
 Start_ISAC:
 	if (val)
 		isac_interrupt(cs, val);
 	val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
 	if (val) {
 		if (cs->debug & L1_DEB_HSCX)
 			debugl1(cs, "HSCX IntStat after IntRoutine");
 		goto Start_HSCX;
 	}
 	val = readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
 	if (val) {
 		if (cs->debug & L1_DEB_ISAC)
 			debugl1(cs, "ISAC IntStat after IntRoutine");
 		goto Start_ISAC;
 	}
 	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0xFF);
 	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0xFF);
 	writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0xFF);
 	writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0x0);
 	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0x0);
 	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0x0);
 	spin_unlock_irqrestore(&cs->lock, flags);
 	return IRQ_HANDLED;
 }

 static irqreturn_t
 asuscom_interrupt_ipac(int intno, void *dev_id)
 {
 	struct IsdnCardState *cs = dev_id;
 	u_char ista, val, icnt = 5;
 	u_long flags;

 	spin_lock_irqsave(&cs->lock, flags);
 	ista = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
 Start_IPAC:
 	if (cs->debug & L1_DEB_IPAC)
 		debugl1(cs, "IPAC ISTA %02X", ista);
 	if (ista & 0x0f) {
 		val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
 		if (ista & 0x01)
 			val |= 0x01;
 		if (ista & 0x04)
 			val |= 0x02;
 		if (ista & 0x08)
 			val |= 0x04;
 		if (val)
 			hscx_int_main(cs, val);
 	}
 	if (ista & 0x20) {
 		val = 0xfe & readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA | 0x80);
 		if (val) {
 			isac_interrupt(cs, val);
 		}
 	}
 	if (ista & 0x10) {
 		val = 0x01;
 		isac_interrupt(cs, val);
 	}
 	ista  = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
 	if ((ista & 0x3f) && icnt) {
 		icnt--;
 		goto Start_IPAC;
 	}
 	if (!icnt)
 		printk(KERN_WARNING "ASUS IRQ LOOP\n");
 	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xFF);
 	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xC0);
 	spin_unlock_irqrestore(&cs->lock, flags);
 	return IRQ_HANDLED;
 }

 static void
 release_io_asuscom(struct IsdnCardState *cs)
 {
 	int bytecnt = 8;

 	if (cs->hw.asus.cfg_reg)
 		release_region(cs->hw.asus.cfg_reg, bytecnt);
 }

 static void
 reset_asuscom(struct IsdnCardState *cs)
 {
 	if (cs->subtyp == ASUS_IPAC)
 		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x20);
 	else
 		byteout(cs->hw.asus.adr, ASUS_RESET);	/* Reset On */
 	mdelay(10);
 	if (cs->subtyp == ASUS_IPAC)
 		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x0);
 	else
 		byteout(cs->hw.asus.adr, 0);	/* Reset Off */
 	mdelay(10);
 	if (cs->subtyp == ASUS_IPAC) {
 		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_CONF, 0x0);
 		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ACFG, 0xff);
 		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_AOE, 0x0);
 		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xc0);
 		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_PCFG, 0x12);
 	}
 }

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

 	switch (mt) {
 	case CARD_RESET:
 		spin_lock_irqsave(&cs->lock, flags);
 		reset_asuscom(cs);
 		spin_unlock_irqrestore(&cs->lock, flags);
 		return (0);
 	case CARD_RELEASE:
 		release_io_asuscom(cs);
 		return (0);
 	case CARD_INIT:
 		spin_lock_irqsave(&cs->lock, flags);
 		cs->debug |= L1_DEB_IPAC;
 		inithscxisac(cs, 3);
 		spin_unlock_irqrestore(&cs->lock, flags);
 		return (0);
 	case CARD_TEST:
 		return (0);
 	}
 	return (0);
 }

 #ifdef __ISAPNP__
 static struct isapnp_device_id asus_ids[] = {
 	{ ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1688),
 	  ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1688),
 	  (unsigned long) "Asus1688 PnP" },
 	{ ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1690),
 	  ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1690),
 	  (unsigned long) "Asus1690 PnP" },
 	{ ISAPNP_VENDOR('S', 'I', 'E'), ISAPNP_FUNCTION(0x0020),
 	  ISAPNP_VENDOR('S', 'I', 'E'), ISAPNP_FUNCTION(0x0020),
 	  (unsigned long) "Isurf2 PnP" },
 	{ ISAPNP_VENDOR('E', 'L', 'F'), ISAPNP_FUNCTION(0x0000),
 	  ISAPNP_VENDOR('E', 'L', 'F'), ISAPNP_FUNCTION(0x0000),
 	  (unsigned long) "Iscas TE320" },
 	{ 0, }
 };

 static struct isapnp_device_id *ipid = &asus_ids[0];
 static struct pnp_card *pnp_c = NULL;
 #endif

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

 	strcpy(tmp, Asuscom_revision);
 	printk(KERN_INFO "HiSax: Asuscom ISDNLink driver Rev. %s\n", HiSax_getrev(tmp));
 	if (cs->typ != ISDN_CTYPE_ASUSCOM)
 		return (0);
 #ifdef __ISAPNP__
 	if (!card->para[1] && isapnp_present()) {
 		struct pnp_dev *pnp_d;
 		while (ipid->card_vendor) {
 			if ((pnp_c = pnp_find_card(ipid->card_vendor,
 						   ipid->card_device, pnp_c))) {
 				pnp_d = NULL;
 				if ((pnp_d = pnp_find_dev(pnp_c,
 							  ipid->vendor, ipid->function, pnp_d))) {
 					int err;

 					printk(KERN_INFO "HiSax: %s detected\n",
 					       (char *)ipid->driver_data);
 					pnp_disable_dev(pnp_d);
 					err = pnp_activate_dev(pnp_d);
 					if (err < 0) {
 						printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
 						       __func__, err);
 						return (0);
 					}
 					card->para[1] = pnp_port_start(pnp_d, 0);
 					card->para[0] = pnp_irq(pnp_d, 0);
 					if (card->para[0] == -1 || !card->para[1]) {
 						printk(KERN_ERR "AsusPnP:some resources are missing %ld/%lx\n",
 						       card->para[0], card->para[1]);
 						pnp_disable_dev(pnp_d);
 						return (0);
 					}
 					break;
 				} else {
 					printk(KERN_ERR "AsusPnP: PnP error card found, no device\n");
 				}
 			}
 			ipid++;
 			pnp_c = NULL;
 		}
 		if (!ipid->card_vendor) {
 			printk(KERN_INFO "AsusPnP: no ISAPnP card found\n");
 			return (0);
 		}
 	}
 #endif
 	bytecnt = 8;
 	cs->hw.asus.cfg_reg = card->para[1];
 	cs->irq = card->para[0];
 	if (!request_region(cs->hw.asus.cfg_reg, bytecnt, "asuscom isdn")) {
 		printk(KERN_WARNING
 		       "HiSax: ISDNLink config port %x-%x already in use\n",
 		       cs->hw.asus.cfg_reg,
 		       cs->hw.asus.cfg_reg + bytecnt);
 		return (0);
 	}
 	printk(KERN_INFO "ISDNLink: defined at 0x%x IRQ %d\n",
 	       cs->hw.asus.cfg_reg, cs->irq);
 	setup_isac(cs);
 	cs->BC_Read_Reg = &ReadHSCX;
 	cs->BC_Write_Reg = &WriteHSCX;
 	cs->BC_Send_Data = &hscx_fill_fifo;
 	cs->cardmsg = &Asus_card_msg;
 	val = readreg(cs->hw.asus.cfg_reg + ASUS_IPAC_ALE,
 		      cs->hw.asus.cfg_reg + ASUS_IPAC_DATA, IPAC_ID);
 	if ((val == 1) || (val == 2)) {
 		cs->subtyp = ASUS_IPAC;
 		cs->hw.asus.adr  = cs->hw.asus.cfg_reg + ASUS_IPAC_ALE;
 		cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
 		cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
 		test_and_set_bit(HW_IPAC, &cs->HW_Flags);
 		cs->readisac = &ReadISAC_IPAC;
 		cs->writeisac = &WriteISAC_IPAC;
 		cs->readisacfifo = &ReadISACfifo_IPAC;
 		cs->writeisacfifo = &WriteISACfifo_IPAC;
 		cs->irq_func = &asuscom_interrupt_ipac;
 		printk(KERN_INFO "Asus: IPAC version %x\n", val);
 	} else {
 		cs->subtyp = ASUS_ISACHSCX;
 		cs->hw.asus.adr = cs->hw.asus.cfg_reg + ASUS_ADR;
 		cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_ISAC;
 		cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_HSCX;
 		cs->hw.asus.u7 = cs->hw.asus.cfg_reg + ASUS_CTRL_U7;
 		cs->hw.asus.pots = cs->hw.asus.cfg_reg + ASUS_CTRL_POTS;
 		cs->readisac = &ReadISAC;
 		cs->writeisac = &WriteISAC;
 		cs->readisacfifo = &ReadISACfifo;
 		cs->writeisacfifo = &WriteISACfifo;
 		cs->irq_func = &asuscom_interrupt;
 		ISACVersion(cs, "ISDNLink:");
 		if (HscxVersion(cs, "ISDNLink:")) {
 			printk(KERN_WARNING
 			       "ISDNLink: wrong HSCX versions check IO address\n");
 			release_io_asuscom(cs);
 			return (0);
 		}
 	}
 	return (1);
 }
	/* $Id: asuscom.c,v 1.14.2.4 2004/01/13 23:48:39 keil Exp $
	*
	* low level stuff for ASUSCOM NETWORK INC. ISDNLink 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.
	*
	* Thanks to ASUSCOM NETWORK INC. Taiwan and Dynalink NL for information
	*
	*/

	#include <linux/init.h>
	#include <linux/isapnp.h>
	#include "hisax.h"
	#include "isac.h"
	#include "ipac.h"
	#include "hscx.h"
	#include "isdnl1.h"

	static const char *Asuscom_revision = "$Revision: 1.14.2.4 $";

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

	#define ASUS_ISAC 0
	#define ASUS_HSCX 1
	#define ASUS_ADR 2
	#define ASUS_CTRL_U7 3
	#define ASUS_CTRL_POTS 5

	#define ASUS_IPAC_ALE 0
	#define ASUS_IPAC_DATA 1

	#define ASUS_ISACHSCX 1
	#define ASUS_IPAC 2

	/* CARD_ADR (Write) */
	#define ASUS_RESET 0x80 /* Bit 7 Reset-Leitung */

	static inline u_char
	readreg(unsigned int ale, unsigned int adr, u_char off)
	{
	register u_char ret;

	byteout(ale, off);
	ret = bytein(adr);
	return (ret);
	}

	static inline void
	readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
	{
	byteout(ale, off);
	insb(adr, data, size);
	}


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

	static inline void
	writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
	{
	byteout(ale, off);
	outsb(adr, data, size);
	}

	/* Interface functions */

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

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

	static void
	ReadISACfifo(struct IsdnCardState cs, u_char data, int size)
	{
	readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
	}

	static void
	WriteISACfifo(struct IsdnCardState cs, u_char data, int size)
	{
	writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
	}

	static u_char
	ReadISAC_IPAC(struct IsdnCardState *cs, u_char offset)
	{
	return (readreg(cs->hw.asus.adr, cs->hw.asus.isac, offset \| 0x80));
	}

	static void
	WriteISAC_IPAC(struct IsdnCardState *cs, u_char offset, u_char value)
	{
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, offset \| 0x80, value);
	}

	static void
	ReadISACfifo_IPAC(struct IsdnCardState cs, u_char data, int size)
	{
	readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
	}

	static void
	WriteISACfifo_IPAC(struct IsdnCardState cs, u_char data, int size)
	{
	writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
	}

	static u_char
	ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
	{
	return (readreg(cs->hw.asus.adr,
	cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0)));
	}

	static void
	WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
	{
	writereg(cs->hw.asus.adr,
	cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0), value);
	}

	/*
	* fast interrupt HSCX stuff goes here
	*/

	#define READHSCX(cs, nr, reg) readreg(cs->hw.asus.adr, \
	cs->hw.asus.hscx, reg + (nr ? 0x40 : 0))
	#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.asus.adr, \
	cs->hw.asus.hscx, reg + (nr ? 0x40 : 0), data)

	#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.asus.adr, \
	cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)

	#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.asus.adr, \
	cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)

	#include "hscx_irq.c"

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

	spin_lock_irqsave(&cs->lock, flags);
	val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
	Start_HSCX:
	if (val)
	hscx_int_main(cs, val);
	val = readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
	Start_ISAC:
	if (val)
	isac_interrupt(cs, val);
	val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
	if (val) {
	if (cs->debug & L1_DEB_HSCX)
	debugl1(cs, "HSCX IntStat after IntRoutine");
	goto Start_HSCX;
	}
	val = readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
	if (val) {
	if (cs->debug & L1_DEB_ISAC)
	debugl1(cs, "ISAC IntStat after IntRoutine");
	goto Start_ISAC;
	}
	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0xFF);
	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0xFF);
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0xFF);
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0x0);
	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0x0);
	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0x0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
	}

	static irqreturn_t
	asuscom_interrupt_ipac(int intno, void *dev_id)
	{
	struct IsdnCardState *cs = dev_id;
	u_char ista, val, icnt = 5;
	u_long flags;

	spin_lock_irqsave(&cs->lock, flags);
	ista = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
	Start_IPAC:
	if (cs->debug & L1_DEB_IPAC)
	debugl1(cs, "IPAC ISTA %02X", ista);
	if (ista & 0x0f) {
	val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
	if (ista & 0x01)
	val \|= 0x01;
	if (ista & 0x04)
	val \|= 0x02;
	if (ista & 0x08)
	val \|= 0x04;
	if (val)
	hscx_int_main(cs, val);
	}
	if (ista & 0x20) {
	val = 0xfe & readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA \| 0x80);
	if (val) {
	isac_interrupt(cs, val);
	}
	}
	if (ista & 0x10) {
	val = 0x01;
	isac_interrupt(cs, val);
	}
	ista = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
	if ((ista & 0x3f) && icnt) {
	icnt--;
	goto Start_IPAC;
	}
	if (!icnt)
	printk(KERN_WARNING "ASUS IRQ LOOP\n");
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xFF);
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xC0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
	}

	static void
	release_io_asuscom(struct IsdnCardState *cs)
	{
	int bytecnt = 8;

	if (cs->hw.asus.cfg_reg)
	release_region(cs->hw.asus.cfg_reg, bytecnt);
	}

	static void
	reset_asuscom(struct IsdnCardState *cs)
	{
	if (cs->subtyp == ASUS_IPAC)
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x20);
	else
	byteout(cs->hw.asus.adr, ASUS_RESET); /* Reset On */
	mdelay(10);
	if (cs->subtyp == ASUS_IPAC)
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x0);
	else
	byteout(cs->hw.asus.adr, 0); /* Reset Off */
	mdelay(10);
	if (cs->subtyp == ASUS_IPAC) {
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_CONF, 0x0);
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ACFG, 0xff);
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_AOE, 0x0);
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xc0);
	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_PCFG, 0x12);
	}
	}

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

	switch (mt) {
	case CARD_RESET:
	spin_lock_irqsave(&cs->lock, flags);
	reset_asuscom(cs);
	spin_unlock_irqrestore(&cs->lock, flags);
	return (0);
	case CARD_RELEASE:
	release_io_asuscom(cs);
	return (0);
	case CARD_INIT:
	spin_lock_irqsave(&cs->lock, flags);
	cs->debug \|= L1_DEB_IPAC;
	inithscxisac(cs, 3);
	spin_unlock_irqrestore(&cs->lock, flags);
	return (0);
	case CARD_TEST:
	return (0);
	}
	return (0);
	}

	#ifdef __ISAPNP__
	static struct isapnp_device_id asus_ids[] = {
	{ ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1688),
	ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1688),
	(unsigned long) "Asus1688 PnP" },
	{ ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1690),
	ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1690),
	(unsigned long) "Asus1690 PnP" },
	{ ISAPNP_VENDOR('S', 'I', 'E'), ISAPNP_FUNCTION(0x0020),
	ISAPNP_VENDOR('S', 'I', 'E'), ISAPNP_FUNCTION(0x0020),
	(unsigned long) "Isurf2 PnP" },
	{ ISAPNP_VENDOR('E', 'L', 'F'), ISAPNP_FUNCTION(0x0000),
	ISAPNP_VENDOR('E', 'L', 'F'), ISAPNP_FUNCTION(0x0000),
	(unsigned long) "Iscas TE320" },
	{ 0, }
	};

	static struct isapnp_device_id *ipid = &asus_ids[0];
	static struct pnp_card *pnp_c = NULL;
	#endif

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

	strcpy(tmp, Asuscom_revision);
	printk(KERN_INFO "HiSax: Asuscom ISDNLink driver Rev. %s\n", HiSax_getrev(tmp));
	if (cs->typ != ISDN_CTYPE_ASUSCOM)
	return (0);
	#ifdef __ISAPNP__
	if (!card->para[1] && isapnp_present()) {
	struct pnp_dev *pnp_d;
	while (ipid->card_vendor) {
	if ((pnp_c = pnp_find_card(ipid->card_vendor,
	ipid->card_device, pnp_c))) {
	pnp_d = NULL;
	if ((pnp_d = pnp_find_dev(pnp_c,
	ipid->vendor, ipid->function, pnp_d))) {
	int err;

	printk(KERN_INFO "HiSax: %s detected\n",
	(char *)ipid->driver_data);
	pnp_disable_dev(pnp_d);
	err = pnp_activate_dev(pnp_d);
	if (err < 0) {
	printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
	__func__, err);
	return (0);
	}
	card->para[1] = pnp_port_start(pnp_d, 0);
	card->para[0] = pnp_irq(pnp_d, 0);
	if (card->para[0] == -1 \|\| !card->para[1]) {
	printk(KERN_ERR "AsusPnP:some resources are missing %ld/%lx\n",
	card->para[0], card->para[1]);
	pnp_disable_dev(pnp_d);
	return (0);
	}
	break;
	} else {
	printk(KERN_ERR "AsusPnP: PnP error card found, no device\n");
	}
	}
	ipid++;
	pnp_c = NULL;
	}
	if (!ipid->card_vendor) {
	printk(KERN_INFO "AsusPnP: no ISAPnP card found\n");
	return (0);
	}
	}
	#endif
	bytecnt = 8;
	cs->hw.asus.cfg_reg = card->para[1];
	cs->irq = card->para[0];
	if (!request_region(cs->hw.asus.cfg_reg, bytecnt, "asuscom isdn")) {
	printk(KERN_WARNING
	"HiSax: ISDNLink config port %x-%x already in use\n",
	cs->hw.asus.cfg_reg,
	cs->hw.asus.cfg_reg + bytecnt);
	return (0);
	}
	printk(KERN_INFO "ISDNLink: defined at 0x%x IRQ %d\n",
	cs->hw.asus.cfg_reg, cs->irq);
	setup_isac(cs);
	cs->BC_Read_Reg = &ReadHSCX;
	cs->BC_Write_Reg = &WriteHSCX;
	cs->BC_Send_Data = &hscx_fill_fifo;
	cs->cardmsg = &Asus_card_msg;
	val = readreg(cs->hw.asus.cfg_reg + ASUS_IPAC_ALE,
	cs->hw.asus.cfg_reg + ASUS_IPAC_DATA, IPAC_ID);
	if ((val == 1) \|\| (val == 2)) {
	cs->subtyp = ASUS_IPAC;
	cs->hw.asus.adr = cs->hw.asus.cfg_reg + ASUS_IPAC_ALE;
	cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
	cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
	test_and_set_bit(HW_IPAC, &cs->HW_Flags);
	cs->readisac = &ReadISAC_IPAC;
	cs->writeisac = &WriteISAC_IPAC;
	cs->readisacfifo = &ReadISACfifo_IPAC;
	cs->writeisacfifo = &WriteISACfifo_IPAC;
	cs->irq_func = &asuscom_interrupt_ipac;
	printk(KERN_INFO "Asus: IPAC version %x\n", val);
	} else {
	cs->subtyp = ASUS_ISACHSCX;
	cs->hw.asus.adr = cs->hw.asus.cfg_reg + ASUS_ADR;
	cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_ISAC;
	cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_HSCX;
	cs->hw.asus.u7 = cs->hw.asus.cfg_reg + ASUS_CTRL_U7;
	cs->hw.asus.pots = cs->hw.asus.cfg_reg + ASUS_CTRL_POTS;
	cs->readisac = &ReadISAC;
	cs->writeisac = &WriteISAC;
	cs->readisacfifo = &ReadISACfifo;
	cs->writeisacfifo = &WriteISACfifo;
	cs->irq_func = &asuscom_interrupt;
	ISACVersion(cs, "ISDNLink:");
	if (HscxVersion(cs, "ISDNLink:")) {
	printk(KERN_WARNING
	"ISDNLink: wrong HSCX versions check IO address\n");
	release_io_asuscom(cs);
	return (0);
	}
	}
	return (1);
	}