Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 1247 insertions, 0 deletions

diff --git a/kernel/drivers/isdn/hisax/elsa.c b/kernel/drivers/isdn/hisax/elsa.c
new file mode 100644
index 000000000..d8ef64da2
--- /dev/null
+++ b/kernel/drivers/isdn/hisax/elsa.c
@@ -0,0 +1,1247 @@
+/* $Id: elsa.c,v 2.32.2.4 2004/01/24 20:47:21 keil Exp $
+ *
+ * low level stuff for Elsa 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.
+ *
+ * For changes and modifications please read
+ * Documentation/isdn/HiSax.cert
+ *
+ * Thanks to    Elsa GmbH for documents and information
+ *
+ *              Klaus Lichtenwalder (Klaus.Lichtenwalder@WebForum.DE)
+ *              for ELSA PCMCIA support
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include "hisax.h"
+#include "arcofi.h"
+#include "isac.h"
+#include "ipac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+#include <linux/pci.h>
+#include <linux/isapnp.h>
+#include <linux/serial.h>
+#include <linux/serial_reg.h>
+
+static const char *Elsa_revision = "$Revision: 2.32.2.4 $";
+static const char *Elsa_Types[] =
+{"None", "PC", "PCC-8", "PCC-16", "PCF", "PCF-Pro",
+ "PCMCIA", "QS 1000", "QS 3000", "Microlink PCI", "QS 3000 PCI",
+ "PCMCIA-IPAC" };
+
+static const char *ITACVer[] =
+{"?0?", "?1?", "?2?", "?3?", "?4?", "V2.2",
+ "B1", "A1"};
+
+#define byteout(addr, val) outb(val, addr)
+#define bytein(addr) inb(addr)
+
+#define ELSA_ISAC	0
+#define ELSA_ISAC_PCM	1
+#define ELSA_ITAC	1
+#define ELSA_HSCX	2
+#define ELSA_ALE	3
+#define ELSA_ALE_PCM	4
+#define ELSA_CONTROL	4
+#define ELSA_CONFIG	5
+#define ELSA_START_TIMER 6
+#define ELSA_TRIG_IRQ	7
+
+#define ELSA_PC      1
+#define ELSA_PCC8    2
+#define ELSA_PCC16   3
+#define ELSA_PCF     4
+#define ELSA_PCFPRO  5
+#define ELSA_PCMCIA  6
+#define ELSA_QS1000  7
+#define ELSA_QS3000  8
+#define ELSA_QS1000PCI 9
+#define ELSA_QS3000PCI 10
+#define ELSA_PCMCIA_IPAC 11
+
+/* PCI stuff */
+#define ELSA_PCI_IRQ_MASK	0x04
+
+/* ITAC Registeradressen (only Microlink PC) */
+#define ITAC_SYS	0x34
+#define ITAC_ISEN	0x48
+#define ITAC_RFIE	0x4A
+#define ITAC_XFIE	0x4C
+#define ITAC_SCIE	0x4E
+#define ITAC_STIE	0x46
+
+/***                                                                    ***
+ ***   Makros als Befehle fuer die Kartenregister                       ***
+ ***   (mehrere Befehle werden durch Bit-Oderung kombiniert)            ***
+ ***                                                                    ***/
+
+/* Config-Register (Read) */
+#define ELIRQF_TIMER_RUN       0x02	/* Bit 1 des Config-Reg     */
+#define ELIRQF_TIMER_RUN_PCC8  0x01	/* Bit 0 des Config-Reg  bei PCC */
+#define ELSA_IRQ_IDX       0x38	/* Bit 3,4,5 des Config-Reg */
+#define ELSA_IRQ_IDX_PCC8  0x30	/* Bit 4,5 des Config-Reg */
+#define ELSA_IRQ_IDX_PC    0x0c	/* Bit 2,3 des Config-Reg */
+
+/* Control-Register (Write) */
+#define ELSA_LINE_LED        0x02	/* Bit 1 Gelbe LED */
+#define ELSA_STAT_LED        0x08	/* Bit 3 Gruene LED */
+#define ELSA_ISDN_RESET      0x20	/* Bit 5 Reset-Leitung */
+#define ELSA_ENA_TIMER_INT   0x80	/* Bit 7 Freigabe Timer Interrupt */
+
+/* ALE-Register (Read) */
+#define ELSA_HW_RELEASE      0x07	/* Bit 0-2 Hardwarerkennung */
+#define ELSA_S0_POWER_BAD    0x08	/* Bit 3 S0-Bus Spannung fehlt */
+
+/* Status Flags */
+#define ELIRQF_TIMER_AKTIV 1
+#define ELSA_BAD_PWR     2
+#define ELSA_ASSIGN      4
+
+#define RS_ISR_PASS_LIMIT 256
+#define FLG_MODEM_ACTIVE 1
+/* IPAC AUX */
+#define ELSA_IPAC_LINE_LED	0x40	/* Bit 6 Gelbe LED */
+#define ELSA_IPAC_STAT_LED	0x80	/* Bit 7 Gruene LED */
+
+#if ARCOFI_USE
+static struct arcofi_msg ARCOFI_XOP_F =
+{NULL,0,2,{0xa1,0x3f,0,0,0,0,0,0,0,0}}; /* Normal OP */
+static struct arcofi_msg ARCOFI_XOP_1 =
+{&ARCOFI_XOP_F,0,2,{0xa1,0x31,0,0,0,0,0,0,0,0}}; /* PWR UP */
+static struct arcofi_msg ARCOFI_SOP_F =
+{&ARCOFI_XOP_1,0,10,{0xa1,0x1f,0x00,0x50,0x10,0x00,0x00,0x80,0x02,0x12}};
+static struct arcofi_msg ARCOFI_COP_9 =
+{&ARCOFI_SOP_F,0,10,{0xa1,0x29,0x80,0xcb,0xe9,0x88,0x00,0xc8,0xd8,0x80}}; /* RX */
+static struct arcofi_msg ARCOFI_COP_8 =
+{&ARCOFI_COP_9,0,10,{0xa1,0x28,0x49,0x31,0x8,0x13,0x6e,0x88,0x2a,0x61}}; /* TX */
+static struct arcofi_msg ARCOFI_COP_7 =
+{&ARCOFI_COP_8,0,4,{0xa1,0x27,0x80,0x80,0,0,0,0,0,0}}; /* GZ */
+static struct arcofi_msg ARCOFI_COP_6 =
+{&ARCOFI_COP_7,0,6,{0xa1,0x26,0,0,0x82,0x7c,0,0,0,0}}; /* GRL GRH */
+static struct arcofi_msg ARCOFI_COP_5 =
+{&ARCOFI_COP_6,0,4,{0xa1,0x25,0xbb,0x4a,0,0,0,0,0,0}}; /* GTX */
+static struct arcofi_msg ARCOFI_VERSION =
+{NULL,1,2,{0xa0,0,0,0,0,0,0,0,0,0}};
+static struct arcofi_msg ARCOFI_XOP_0 =
+{NULL,0,2,{0xa1,0x30,0,0,0,0,0,0,0,0}}; /* PWR Down */
+
+static void set_arcofi(struct IsdnCardState *cs, int bc);
+
+#include "elsa_ser.c"
+#endif /* ARCOFI_USE */
+
+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.elsa.ale, cs->hw.elsa.isac, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+	readfifo(cs->hw.elsa.ale, cs->hw.elsa.isac, 0, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+	writefifo(cs->hw.elsa.ale, cs->hw.elsa.isac, 0, data, size);
+}
+
+static u_char
+ReadISAC_IPAC(struct IsdnCardState *cs, u_char offset)
+{
+	return (readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, offset + 0x80));
+}
+
+static void
+WriteISAC_IPAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, offset | 0x80, value);
+}
+
+static void
+ReadISACfifo_IPAC(struct IsdnCardState *cs, u_char *data, int size)
+{
+	readfifo(cs->hw.elsa.ale, cs->hw.elsa.isac, 0x80, data, size);
+}
+
+static void
+WriteISACfifo_IPAC(struct IsdnCardState *cs, u_char *data, int size)
+{
+	writefifo(cs->hw.elsa.ale, cs->hw.elsa.isac, 0x80, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+	return (readreg(cs->hw.elsa.ale,
+			cs->hw.elsa.hscx, offset + (hscx ? 0x40 : 0)));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+	writereg(cs->hw.elsa.ale,
+		 cs->hw.elsa.hscx, offset + (hscx ? 0x40 : 0), value);
+}
+
+static inline u_char
+readitac(struct IsdnCardState *cs, u_char off)
+{
+	register u_char ret;
+
+	byteout(cs->hw.elsa.ale, off);
+	ret = bytein(cs->hw.elsa.itac);
+	return (ret);
+}
+
+static inline void
+writeitac(struct IsdnCardState *cs, u_char off, u_char data)
+{
+	byteout(cs->hw.elsa.ale, off);
+	byteout(cs->hw.elsa.itac, data);
+}
+
+static inline int
+TimerRun(struct IsdnCardState *cs)
+{
+	register u_char v;
+
+	v = bytein(cs->hw.elsa.cfg);
+	if ((cs->subtyp == ELSA_QS1000) || (cs->subtyp == ELSA_QS3000))
+		return (0 == (v & ELIRQF_TIMER_RUN));
+	else if (cs->subtyp == ELSA_PCC8)
+		return (v & ELIRQF_TIMER_RUN_PCC8);
+	return (v & ELIRQF_TIMER_RUN);
+}
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.elsa.ale,			\
+				      cs->hw.elsa.hscx, reg + (nr ? 0x40 : 0))
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.elsa.ale,		\
+					      cs->hw.elsa.hscx, reg + (nr ? 0x40 : 0), data)
+
+#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.elsa.ale,	\
+						cs->hw.elsa.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.elsa.ale,	\
+						  cs->hw.elsa.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+elsa_interrupt(int intno, void *dev_id)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_long flags;
+	u_char val;
+	int icnt = 5;
+
+	if ((cs->typ == ISDN_CTYPE_ELSA_PCMCIA) && (*cs->busy_flag == 1)) {
+		/* The card tends to generate interrupts while being removed
+		   causing us to just crash the kernel. bad. */
+		printk(KERN_WARNING "Elsa: card not available!\n");
+		return IRQ_NONE;
+	}
+	spin_lock_irqsave(&cs->lock, flags);
+#if ARCOFI_USE
+	if (cs->hw.elsa.MFlag) {
+		val = serial_inp(cs, UART_IIR);
+		if (!(val & UART_IIR_NO_INT)) {
+			debugl1(cs, "IIR %02x", val);
+			rs_interrupt_elsa(cs);
+		}
+	}
+#endif
+	val = readreg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_ISTA + 0x40);
+Start_HSCX:
+	if (val) {
+		hscx_int_main(cs, val);
+	}
+	val = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, ISAC_ISTA);
+Start_ISAC:
+	if (val) {
+		isac_interrupt(cs, val);
+	}
+	val = readreg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_ISTA + 0x40);
+	if (val && icnt) {
+		if (cs->debug & L1_DEB_HSCX)
+			debugl1(cs, "HSCX IntStat after IntRoutine");
+		icnt--;
+		goto Start_HSCX;
+	}
+	val = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, ISAC_ISTA);
+	if (val && icnt) {
+		if (cs->debug & L1_DEB_ISAC)
+			debugl1(cs, "ISAC IntStat after IntRoutine");
+		icnt--;
+		goto Start_ISAC;
+	}
+	if (!icnt)
+		printk(KERN_WARNING"ELSA IRQ LOOP\n");
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_MASK, 0xFF);
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_MASK + 0x40, 0xFF);
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, ISAC_MASK, 0xFF);
+	if (cs->hw.elsa.status & ELIRQF_TIMER_AKTIV) {
+		if (!TimerRun(cs)) {
+			/* Timer Restart */
+			byteout(cs->hw.elsa.timer, 0);
+			cs->hw.elsa.counter++;
+		}
+	}
+#if ARCOFI_USE
+	if (cs->hw.elsa.MFlag) {
+		val = serial_inp(cs, UART_MCR);
+		val ^= 0x8;
+		serial_outp(cs, UART_MCR, val);
+		val = serial_inp(cs, UART_MCR);
+		val ^= 0x8;
+		serial_outp(cs, UART_MCR, val);
+	}
+#endif
+	if (cs->hw.elsa.trig)
+		byteout(cs->hw.elsa.trig, 0x00);
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_MASK, 0x0);
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_MASK + 0x40, 0x0);
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, ISAC_MASK, 0x0);
+	spin_unlock_irqrestore(&cs->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t
+elsa_interrupt_ipac(int intno, void *dev_id)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_long flags;
+	u_char ista, val;
+	int icnt = 5;
+
+	spin_lock_irqsave(&cs->lock, flags);
+	if (cs->subtyp == ELSA_QS1000PCI || cs->subtyp == ELSA_QS3000PCI) {
+		val = bytein(cs->hw.elsa.cfg + 0x4c); /* PCI IRQ */
+		if (!(val & ELSA_PCI_IRQ_MASK)) {
+			spin_unlock_irqrestore(&cs->lock, flags);
+			return IRQ_NONE;
+		}
+	}
+#if ARCOFI_USE
+	if (cs->hw.elsa.MFlag) {
+		val = serial_inp(cs, UART_IIR);
+		if (!(val & UART_IIR_NO_INT)) {
+			debugl1(cs, "IIR %02x", val);
+			rs_interrupt_elsa(cs);
+		}
+	}
+#endif
+	ista = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ISTA);
+Start_IPAC:
+	if (cs->debug & L1_DEB_IPAC)
+		debugl1(cs, "IPAC ISTA %02X", ista);
+	if (ista & 0x0f) {
+		val = readreg(cs->hw.elsa.ale, cs->hw.elsa.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.elsa.ale, cs->hw.elsa.isac, ISAC_ISTA + 0x80);
+		if (val) {
+			isac_interrupt(cs, val);
+		}
+	}
+	if (ista & 0x10) {
+		val = 0x01;
+		isac_interrupt(cs, val);
+	}
+	ista  = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ISTA);
+	if ((ista & 0x3f) && icnt) {
+		icnt--;
+		goto Start_IPAC;
+	}
+	if (!icnt)
+		printk(KERN_WARNING "ELSA IRQ LOOP\n");
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_MASK, 0xFF);
+	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_MASK, 0xC0);
+	spin_unlock_irqrestore(&cs->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static void
+release_io_elsa(struct IsdnCardState *cs)
+{
+	int bytecnt = 8;
+
+	del_timer(&cs->hw.elsa.tl);
+#if ARCOFI_USE
+	clear_arcofi(cs);
+#endif
+	if (cs->hw.elsa.ctrl)
+		byteout(cs->hw.elsa.ctrl, 0);	/* LEDs Out */
+	if (cs->subtyp == ELSA_QS1000PCI) {
+		byteout(cs->hw.elsa.cfg + 0x4c, 0x01);  /* disable IRQ */
+		writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ATX, 0xff);
+		bytecnt = 2;
+		release_region(cs->hw.elsa.cfg, 0x80);
+	}
+	if (cs->subtyp == ELSA_QS3000PCI) {
+		byteout(cs->hw.elsa.cfg + 0x4c, 0x03); /* disable ELSA PCI IRQ */
+		writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ATX, 0xff);
+		release_region(cs->hw.elsa.cfg, 0x80);
+	}
+	if (cs->subtyp == ELSA_PCMCIA_IPAC) {
+		writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ATX, 0xff);
+	}
+	if ((cs->subtyp == ELSA_PCFPRO) ||
+	    (cs->subtyp == ELSA_QS3000) ||
+	    (cs->subtyp == ELSA_PCF) ||
+	    (cs->subtyp == ELSA_QS3000PCI)) {
+		bytecnt = 16;
+#if ARCOFI_USE
+		release_modem(cs);
+#endif
+	}
+	if (cs->hw.elsa.base)
+		release_region(cs->hw.elsa.base, bytecnt);
+}
+
+static void
+reset_elsa(struct IsdnCardState *cs)
+{
+	if (cs->hw.elsa.timer) {
+		/* Wait 1 Timer */
+		byteout(cs->hw.elsa.timer, 0);
+		while (TimerRun(cs));
+		cs->hw.elsa.ctrl_reg |= 0x50;
+		cs->hw.elsa.ctrl_reg &= ~ELSA_ISDN_RESET;	/* Reset On */
+		byteout(cs->hw.elsa.ctrl, cs->hw.elsa.ctrl_reg);
+		/* Wait 1 Timer */
+		byteout(cs->hw.elsa.timer, 0);
+		while (TimerRun(cs));
+		cs->hw.elsa.ctrl_reg |= ELSA_ISDN_RESET;	/* Reset Off */
+		byteout(cs->hw.elsa.ctrl, cs->hw.elsa.ctrl_reg);
+		/* Wait 1 Timer */
+		byteout(cs->hw.elsa.timer, 0);
+		while (TimerRun(cs));
+		if (cs->hw.elsa.trig)
+			byteout(cs->hw.elsa.trig, 0xff);
+	}
+	if ((cs->subtyp == ELSA_QS1000PCI) || (cs->subtyp == ELSA_QS3000PCI) || (cs->subtyp == ELSA_PCMCIA_IPAC)) {
+		writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_POTA2, 0x20);
+		mdelay(10);
+		writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_POTA2, 0x00);
+		writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_MASK, 0xc0);
+		mdelay(10);
+		if (cs->subtyp != ELSA_PCMCIA_IPAC) {
+			writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ACFG, 0x0);
+			writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_AOE, 0x3c);
+		} else {
+			writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_PCFG, 0x10);
+			writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ACFG, 0x4);
+			writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_AOE, 0xf8);
+		}
+		writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ATX, 0xff);
+		if (cs->subtyp == ELSA_QS1000PCI)
+			byteout(cs->hw.elsa.cfg + 0x4c, 0x41); /* enable ELSA PCI IRQ */
+		else if (cs->subtyp == ELSA_QS3000PCI)
+			byteout(cs->hw.elsa.cfg + 0x4c, 0x43); /* enable ELSA PCI IRQ */
+	}
+}
+
+#if ARCOFI_USE
+
+static void
+set_arcofi(struct IsdnCardState *cs, int bc) {
+	cs->dc.isac.arcofi_bc = bc;
+	arcofi_fsm(cs, ARCOFI_START, &ARCOFI_COP_5);
+	wait_event_interruptible(cs->dc.isac.arcofi_wait,
+				 cs->dc.isac.arcofi_state == ARCOFI_NOP);
+}
+
+static int
+check_arcofi(struct IsdnCardState *cs)
+{
+	int arcofi_present = 0;
+	char tmp[40];
+	char *t;
+	u_char *p;
+
+	if (!cs->dc.isac.mon_tx)
+		if (!(cs->dc.isac.mon_tx = kmalloc(MAX_MON_FRAME, GFP_ATOMIC))) {
+			if (cs->debug & L1_DEB_WARN)
+				debugl1(cs, "ISAC MON TX out of buffers!");
+			return (0);
+		}
+	cs->dc.isac.arcofi_bc = 0;
+	arcofi_fsm(cs, ARCOFI_START, &ARCOFI_VERSION);
+	wait_event_interruptible(cs->dc.isac.arcofi_wait,
+				 cs->dc.isac.arcofi_state == ARCOFI_NOP);
+	if (!test_and_clear_bit(FLG_ARCOFI_ERROR, &cs->HW_Flags)) {
+		debugl1(cs, "Arcofi response received %d bytes", cs->dc.isac.mon_rxp);
+		p = cs->dc.isac.mon_rx;
+		t = tmp;
+		t += sprintf(tmp, "Arcofi data");
+		QuickHex(t, p, cs->dc.isac.mon_rxp);
+		debugl1(cs, "%s", tmp);
+		if ((cs->dc.isac.mon_rxp == 2) && (cs->dc.isac.mon_rx[0] == 0xa0)) {
+			switch (cs->dc.isac.mon_rx[1]) {
+			case 0x80:
+				debugl1(cs, "Arcofi 2160 detected");
+				arcofi_present = 1;
+				break;
+			case 0x82:
+				debugl1(cs, "Arcofi 2165 detected");
+				arcofi_present = 2;
+				break;
+			case 0x84:
+				debugl1(cs, "Arcofi 2163 detected");
+				arcofi_present = 3;
+				break;
+			default:
+				debugl1(cs, "unknown Arcofi response");
+				break;
+			}
+		} else
+			debugl1(cs, "undefined Monitor response");
+		cs->dc.isac.mon_rxp = 0;
+	} else if (cs->dc.isac.mon_tx) {
+		debugl1(cs, "Arcofi not detected");
+	}
+	if (arcofi_present) {
+		if (cs->subtyp == ELSA_QS1000) {
+			cs->subtyp = ELSA_QS3000;
+			printk(KERN_INFO
+			       "Elsa: %s detected modem at 0x%lx\n",
+			       Elsa_Types[cs->subtyp],
+			       cs->hw.elsa.base + 8);
+			release_region(cs->hw.elsa.base, 8);
+			if (!request_region(cs->hw.elsa.base, 16, "elsa isdn modem")) {
+				printk(KERN_WARNING
+				       "HiSax: %s config port %lx-%lx already in use\n",
+				       Elsa_Types[cs->subtyp],
+				       cs->hw.elsa.base + 8,
+				       cs->hw.elsa.base + 16);
+			}
+		} else if (cs->subtyp == ELSA_PCC16) {
+			cs->subtyp = ELSA_PCF;
+			printk(KERN_INFO
+			       "Elsa: %s detected modem at 0x%lx\n",
+			       Elsa_Types[cs->subtyp],
+			       cs->hw.elsa.base + 8);
+			release_region(cs->hw.elsa.base, 8);
+			if (!request_region(cs->hw.elsa.base, 16, "elsa isdn modem")) {
+				printk(KERN_WARNING
+				       "HiSax: %s config port %lx-%lx already in use\n",
+				       Elsa_Types[cs->subtyp],
+				       cs->hw.elsa.base + 8,
+				       cs->hw.elsa.base + 16);
+			}
+		} else
+			printk(KERN_INFO
+			       "Elsa: %s detected modem at 0x%lx\n",
+			       Elsa_Types[cs->subtyp],
+			       cs->hw.elsa.base + 8);
+		arcofi_fsm(cs, ARCOFI_START, &ARCOFI_XOP_0);
+		wait_event_interruptible(cs->dc.isac.arcofi_wait,
+				 cs->dc.isac.arcofi_state == ARCOFI_NOP);
+		return (1);
+	}
+	return (0);
+}
+#endif /* ARCOFI_USE */
+
+static void
+elsa_led_handler(struct IsdnCardState *cs)
+{
+	int blink = 0;
+
+	if (cs->subtyp == ELSA_PCMCIA || cs->subtyp == ELSA_PCMCIA_IPAC)
+		return;
+	del_timer(&cs->hw.elsa.tl);
+	if (cs->hw.elsa.status & ELSA_ASSIGN)
+		cs->hw.elsa.ctrl_reg |= ELSA_STAT_LED;
+	else if (cs->hw.elsa.status & ELSA_BAD_PWR)
+		cs->hw.elsa.ctrl_reg &= ~ELSA_STAT_LED;
+	else {
+		cs->hw.elsa.ctrl_reg ^= ELSA_STAT_LED;
+		blink = 250;
+	}
+	if (cs->hw.elsa.status & 0xf000)
+		cs->hw.elsa.ctrl_reg |= ELSA_LINE_LED;
+	else if (cs->hw.elsa.status & 0x0f00) {
+		cs->hw.elsa.ctrl_reg ^= ELSA_LINE_LED;
+		blink = 500;
+	} else
+		cs->hw.elsa.ctrl_reg &= ~ELSA_LINE_LED;
+
+	if ((cs->subtyp == ELSA_QS1000PCI) ||
+	    (cs->subtyp == ELSA_QS3000PCI)) {
+		u_char led = 0xff;
+		if (cs->hw.elsa.ctrl_reg & ELSA_LINE_LED)
+			led ^= ELSA_IPAC_LINE_LED;
+		if (cs->hw.elsa.ctrl_reg & ELSA_STAT_LED)
+			led ^= ELSA_IPAC_STAT_LED;
+		writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ATX, led);
+	} else
+		byteout(cs->hw.elsa.ctrl, cs->hw.elsa.ctrl_reg);
+	if (blink) {
+		init_timer(&cs->hw.elsa.tl);
+		cs->hw.elsa.tl.expires = jiffies + ((blink * HZ) / 1000);
+		add_timer(&cs->hw.elsa.tl);
+	}
+}
+
+static int
+Elsa_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	int ret = 0;
+	u_long flags;
+
+	switch (mt) {
+	case CARD_RESET:
+		spin_lock_irqsave(&cs->lock, flags);
+		reset_elsa(cs);
+		spin_unlock_irqrestore(&cs->lock, flags);
+		return (0);
+	case CARD_RELEASE:
+		release_io_elsa(cs);
+		return (0);
+	case CARD_INIT:
+		spin_lock_irqsave(&cs->lock, flags);
+		cs->debug |= L1_DEB_IPAC;
+		reset_elsa(cs);
+		inithscxisac(cs, 1);
+		if ((cs->subtyp == ELSA_QS1000) ||
+		    (cs->subtyp == ELSA_QS3000))
+		{
+			byteout(cs->hw.elsa.timer, 0);
+		}
+		if (cs->hw.elsa.trig)
+			byteout(cs->hw.elsa.trig, 0xff);
+		inithscxisac(cs, 2);
+		spin_unlock_irqrestore(&cs->lock, flags);
+		return (0);
+	case CARD_TEST:
+		if ((cs->subtyp == ELSA_PCMCIA) ||
+		    (cs->subtyp == ELSA_PCMCIA_IPAC) ||
+		    (cs->subtyp == ELSA_QS1000PCI)) {
+			return (0);
+		} else if (cs->subtyp == ELSA_QS3000PCI) {
+			ret = 0;
+		} else {
+			spin_lock_irqsave(&cs->lock, flags);
+			cs->hw.elsa.counter = 0;
+			cs->hw.elsa.ctrl_reg |= ELSA_ENA_TIMER_INT;
+			cs->hw.elsa.status |= ELIRQF_TIMER_AKTIV;
+			byteout(cs->hw.elsa.ctrl, cs->hw.elsa.ctrl_reg);
+			byteout(cs->hw.elsa.timer, 0);
+			spin_unlock_irqrestore(&cs->lock, flags);
+			msleep(110);
+			spin_lock_irqsave(&cs->lock, flags);
+			cs->hw.elsa.ctrl_reg &= ~ELSA_ENA_TIMER_INT;
+			byteout(cs->hw.elsa.ctrl, cs->hw.elsa.ctrl_reg);
+			cs->hw.elsa.status &= ~ELIRQF_TIMER_AKTIV;
+			spin_unlock_irqrestore(&cs->lock, flags);
+			printk(KERN_INFO "Elsa: %d timer tics in 110 msek\n",
+			       cs->hw.elsa.counter);
+			if ((cs->hw.elsa.counter > 10) &&
+			    (cs->hw.elsa.counter < 16)) {
+				printk(KERN_INFO "Elsa: timer and irq OK\n");
+				ret = 0;
+			} else {
+				printk(KERN_WARNING
+				       "Elsa: timer tic problem (%d/12) maybe an IRQ(%d) conflict\n",
+				       cs->hw.elsa.counter, cs->irq);
+				ret = 1;
+			}
+		}
+#if ARCOFI_USE
+		if (check_arcofi(cs)) {
+			init_modem(cs);
+		}
+#endif
+		elsa_led_handler(cs);
+		return (ret);
+	case (MDL_REMOVE | REQUEST):
+		cs->hw.elsa.status &= 0;
+		break;
+	case (MDL_ASSIGN | REQUEST):
+		cs->hw.elsa.status |= ELSA_ASSIGN;
+		break;
+	case MDL_INFO_SETUP:
+		if ((long) arg)
+			cs->hw.elsa.status |= 0x0200;
+		else
+			cs->hw.elsa.status |= 0x0100;
+		break;
+	case MDL_INFO_CONN:
+		if ((long) arg)
+			cs->hw.elsa.status |= 0x2000;
+		else
+			cs->hw.elsa.status |= 0x1000;
+		break;
+	case MDL_INFO_REL:
+		if ((long) arg) {
+			cs->hw.elsa.status &= ~0x2000;
+			cs->hw.elsa.status &= ~0x0200;
+		} else {
+			cs->hw.elsa.status &= ~0x1000;
+			cs->hw.elsa.status &= ~0x0100;
+		}
+		break;
+#if ARCOFI_USE
+	case CARD_AUX_IND:
+		if (cs->hw.elsa.MFlag) {
+			int len;
+			u_char *msg;
+
+			if (!arg)
+				return (0);
+			msg = arg;
+			len = *msg;
+			msg++;
+			modem_write_cmd(cs, msg, len);
+		}
+		break;
+#endif
+	}
+	if (cs->typ == ISDN_CTYPE_ELSA) {
+		int pwr = bytein(cs->hw.elsa.ale);
+		if (pwr & 0x08)
+			cs->hw.elsa.status |= ELSA_BAD_PWR;
+		else
+			cs->hw.elsa.status &= ~ELSA_BAD_PWR;
+	}
+	elsa_led_handler(cs);
+	return (ret);
+}
+
+static unsigned char
+probe_elsa_adr(unsigned int adr, int typ)
+{
+	int i, in1, in2, p16_1 = 0, p16_2 = 0, p8_1 = 0, p8_2 = 0, pc_1 = 0,
+		pc_2 = 0, pfp_1 = 0, pfp_2 = 0;
+
+	/* In case of the elsa pcmcia card, this region is in use,
+	   reserved for us by the card manager. So we do not check it
+	   here, it would fail. */
+	if (typ != ISDN_CTYPE_ELSA_PCMCIA) {
+		if (request_region(adr, 8, "elsa card")) {
+			release_region(adr, 8);
+		} else {
+			printk(KERN_WARNING
+			       "Elsa: Probing Port 0x%x: already in use\n", adr);
+			return (0);
+		}
+	}
+	for (i = 0; i < 16; i++) {
+		in1 = inb(adr + ELSA_CONFIG);	/* 'toggelt' bei */
+		in2 = inb(adr + ELSA_CONFIG);	/* jedem Zugriff */
+		p16_1 += 0x04 & in1;
+		p16_2 += 0x04 & in2;
+		p8_1 += 0x02 & in1;
+		p8_2 += 0x02 & in2;
+		pc_1 += 0x01 & in1;
+		pc_2 += 0x01 & in2;
+		pfp_1 += 0x40 & in1;
+		pfp_2 += 0x40 & in2;
+	}
+	printk(KERN_INFO "Elsa: Probing IO 0x%x", adr);
+	if (65 == ++p16_1 * ++p16_2) {
+		printk(" PCC-16/PCF found\n");
+		return (ELSA_PCC16);
+	} else if (1025 == ++pfp_1 * ++pfp_2) {
+		printk(" PCF-Pro found\n");
+		return (ELSA_PCFPRO);
+	} else if (33 == ++p8_1 * ++p8_2) {
+		printk(" PCC8 found\n");
+		return (ELSA_PCC8);
+	} else if (17 == ++pc_1 * ++pc_2) {
+		printk(" PC found\n");
+		return (ELSA_PC);
+	} else {
+		printk(" failed\n");
+		return (0);
+	}
+}
+
+static unsigned int
+probe_elsa(struct IsdnCardState *cs)
+{
+	int i;
+	unsigned int CARD_portlist[] =
+		{0x160, 0x170, 0x260, 0x360, 0};
+
+	for (i = 0; CARD_portlist[i]; i++) {
+		if ((cs->subtyp = probe_elsa_adr(CARD_portlist[i], cs->typ)))
+			break;
+	}
+	return (CARD_portlist[i]);
+}
+
+static int setup_elsa_isa(struct IsdnCard *card)
+{
+	struct IsdnCardState *cs = card->cs;
+	u_char val;
+
+	cs->hw.elsa.base = card->para[0];
+	printk(KERN_INFO "Elsa: Microlink IO probing\n");
+	if (cs->hw.elsa.base) {
+		if (!(cs->subtyp = probe_elsa_adr(cs->hw.elsa.base,
+						  cs->typ))) {
+			printk(KERN_WARNING
+			       "Elsa: no Elsa Microlink at %#lx\n",
+			       cs->hw.elsa.base);
+			return (0);
+		}
+	} else
+		cs->hw.elsa.base = probe_elsa(cs);
+
+	if (!cs->hw.elsa.base) {
+		printk(KERN_WARNING
+		       "No Elsa Microlink found\n");
+		return (0);
+	}
+
+	cs->hw.elsa.cfg = cs->hw.elsa.base + ELSA_CONFIG;
+	cs->hw.elsa.ctrl = cs->hw.elsa.base + ELSA_CONTROL;
+	cs->hw.elsa.ale = cs->hw.elsa.base + ELSA_ALE;
+	cs->hw.elsa.isac = cs->hw.elsa.base + ELSA_ISAC;
+	cs->hw.elsa.itac = cs->hw.elsa.base + ELSA_ITAC;
+	cs->hw.elsa.hscx = cs->hw.elsa.base + ELSA_HSCX;
+	cs->hw.elsa.trig = cs->hw.elsa.base + ELSA_TRIG_IRQ;
+	cs->hw.elsa.timer = cs->hw.elsa.base + ELSA_START_TIMER;
+	val = bytein(cs->hw.elsa.cfg);
+	if (cs->subtyp == ELSA_PC) {
+		const u_char CARD_IrqTab[8] =
+			{7, 3, 5, 9, 0, 0, 0, 0};
+		cs->irq = CARD_IrqTab[(val & ELSA_IRQ_IDX_PC) >> 2];
+	} else if (cs->subtyp == ELSA_PCC8) {
+		const u_char CARD_IrqTab[8] =
+			{7, 3, 5, 9, 0, 0, 0, 0};
+		cs->irq = CARD_IrqTab[(val & ELSA_IRQ_IDX_PCC8) >> 4];
+	} else {
+		const u_char CARD_IrqTab[8] =
+			{15, 10, 15, 3, 11, 5, 11, 9};
+		cs->irq = CARD_IrqTab[(val & ELSA_IRQ_IDX) >> 3];
+	}
+	val = bytein(cs->hw.elsa.ale) & ELSA_HW_RELEASE;
+	if (val < 3)
+		val |= 8;
+	val += 'A' - 3;
+	if (val == 'B' || val == 'C')
+		val ^= 1;
+	if ((cs->subtyp == ELSA_PCFPRO) && (val == 'G'))
+		val = 'C';
+	printk(KERN_INFO
+	       "Elsa: %s found at %#lx Rev.:%c IRQ %d\n",
+	       Elsa_Types[cs->subtyp],
+	       cs->hw.elsa.base,
+	       val, cs->irq);
+	val = bytein(cs->hw.elsa.ale) & ELSA_S0_POWER_BAD;
+	if (val) {
+		printk(KERN_WARNING
+		       "Elsa: Microlink S0 bus power bad\n");
+		cs->hw.elsa.status |= ELSA_BAD_PWR;
+	}
+
+	return (1);
+}
+
+#ifdef __ISAPNP__
+static struct isapnp_device_id elsa_ids[] = {
+	{ ISAPNP_VENDOR('E', 'L', 'S'), ISAPNP_FUNCTION(0x0133),
+	  ISAPNP_VENDOR('E', 'L', 'S'), ISAPNP_FUNCTION(0x0133),
+	  (unsigned long) "Elsa QS1000" },
+	{ ISAPNP_VENDOR('E', 'L', 'S'), ISAPNP_FUNCTION(0x0134),
+	  ISAPNP_VENDOR('E', 'L', 'S'), ISAPNP_FUNCTION(0x0134),
+	  (unsigned long) "Elsa QS3000" },
+	{ 0, }
+};
+
+static struct isapnp_device_id *ipid = &elsa_ids[0];
+static struct pnp_card *pnp_c = NULL;
+#endif	/* __ISAPNP__ */
+
+static int setup_elsa_isapnp(struct IsdnCard *card)
+{
+	struct IsdnCardState *cs = card->cs;
+
+#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] || !card->para[1]) {
+						printk(KERN_ERR "Elsa PnP:some resources are missing %ld/%lx\n",
+						       card->para[0], card->para[1]);
+						pnp_disable_dev(pnp_d);
+						return (0);
+					}
+					if (ipid->function == ISAPNP_FUNCTION(0x133))
+						cs->subtyp = ELSA_QS1000;
+					else
+						cs->subtyp = ELSA_QS3000;
+					break;
+				} else {
+					printk(KERN_ERR "Elsa PnP: PnP error card found, no device\n");
+					return (0);
+				}
+			}
+			ipid++;
+			pnp_c = NULL;
+		}
+		if (!ipid->card_vendor) {
+			printk(KERN_INFO "Elsa PnP: no ISAPnP card found\n");
+			return (0);
+		}
+	}
+#endif	/* __ISAPNP__ */
+
+	if (card->para[1] && card->para[0]) {
+		cs->hw.elsa.base = card->para[1];
+		cs->irq = card->para[0];
+		if (!cs->subtyp)
+			cs->subtyp = ELSA_QS1000;
+	} else {
+		printk(KERN_ERR "Elsa PnP: no parameter\n");
+	}
+	cs->hw.elsa.cfg = cs->hw.elsa.base + ELSA_CONFIG;
+	cs->hw.elsa.ale = cs->hw.elsa.base + ELSA_ALE;
+	cs->hw.elsa.isac = cs->hw.elsa.base + ELSA_ISAC;
+	cs->hw.elsa.hscx = cs->hw.elsa.base + ELSA_HSCX;
+	cs->hw.elsa.trig = cs->hw.elsa.base + ELSA_TRIG_IRQ;
+	cs->hw.elsa.timer = cs->hw.elsa.base + ELSA_START_TIMER;
+	cs->hw.elsa.ctrl = cs->hw.elsa.base + ELSA_CONTROL;
+	printk(KERN_INFO
+	       "Elsa: %s defined at %#lx IRQ %d\n",
+	       Elsa_Types[cs->subtyp],
+	       cs->hw.elsa.base,
+	       cs->irq);
+
+	return (1);
+}
+
+static void setup_elsa_pcmcia(struct IsdnCard *card)
+{
+	struct IsdnCardState *cs = card->cs;
+	u_char val;
+
+	cs->hw.elsa.base = card->para[1];
+	cs->irq = card->para[0];
+	val = readreg(cs->hw.elsa.base + 0, cs->hw.elsa.base + 2, IPAC_ID);
+	if ((val == 1) || (val == 2)) { /* IPAC version 1.1/1.2 */
+		cs->subtyp = ELSA_PCMCIA_IPAC;
+		cs->hw.elsa.ale = cs->hw.elsa.base + 0;
+		cs->hw.elsa.isac = cs->hw.elsa.base + 2;
+		cs->hw.elsa.hscx = cs->hw.elsa.base + 2;
+		test_and_set_bit(HW_IPAC, &cs->HW_Flags);
+	} else {
+		cs->subtyp = ELSA_PCMCIA;
+		cs->hw.elsa.ale = cs->hw.elsa.base + ELSA_ALE_PCM;
+		cs->hw.elsa.isac = cs->hw.elsa.base + ELSA_ISAC_PCM;
+		cs->hw.elsa.hscx = cs->hw.elsa.base + ELSA_HSCX;
+	}
+	cs->hw.elsa.timer = 0;
+	cs->hw.elsa.trig = 0;
+	cs->hw.elsa.ctrl = 0;
+	cs->irq_flags |= IRQF_SHARED;
+	printk(KERN_INFO
+	       "Elsa: %s defined at %#lx IRQ %d\n",
+	       Elsa_Types[cs->subtyp],
+	       cs->hw.elsa.base,
+	       cs->irq);
+}
+
+#ifdef CONFIG_PCI
+static	struct pci_dev *dev_qs1000 = NULL;
+static	struct pci_dev *dev_qs3000 = NULL;
+
+static int setup_elsa_pci(struct IsdnCard *card)
+{
+	struct IsdnCardState *cs = card->cs;
+
+	cs->subtyp = 0;
+	if ((dev_qs1000 = hisax_find_pci_device(PCI_VENDOR_ID_ELSA,
+						PCI_DEVICE_ID_ELSA_MICROLINK, dev_qs1000))) {
+		if (pci_enable_device(dev_qs1000))
+			return (0);
+		cs->subtyp = ELSA_QS1000PCI;
+		cs->irq = dev_qs1000->irq;
+		cs->hw.elsa.cfg = pci_resource_start(dev_qs1000, 1);
+		cs->hw.elsa.base = pci_resource_start(dev_qs1000, 3);
+	} else if ((dev_qs3000 = hisax_find_pci_device(PCI_VENDOR_ID_ELSA,
+						       PCI_DEVICE_ID_ELSA_QS3000, dev_qs3000))) {
+		if (pci_enable_device(dev_qs3000))
+			return (0);
+		cs->subtyp = ELSA_QS3000PCI;
+		cs->irq = dev_qs3000->irq;
+		cs->hw.elsa.cfg = pci_resource_start(dev_qs3000, 1);
+		cs->hw.elsa.base = pci_resource_start(dev_qs3000, 3);
+	} else {
+		printk(KERN_WARNING "Elsa: No PCI card found\n");
+		return (0);
+	}
+	if (!cs->irq) {
+		printk(KERN_WARNING "Elsa: No IRQ for PCI card found\n");
+		return (0);
+	}
+
+	if (!(cs->hw.elsa.base && cs->hw.elsa.cfg)) {
+		printk(KERN_WARNING "Elsa: No IO-Adr for PCI card found\n");
+		return (0);
+	}
+	if ((cs->hw.elsa.cfg & 0xff) || (cs->hw.elsa.base & 0xf)) {
+		printk(KERN_WARNING "Elsa: You may have a wrong PCI bios\n");
+		printk(KERN_WARNING "Elsa: If your system hangs now, read\n");
+		printk(KERN_WARNING "Elsa: Documentation/isdn/README.HiSax\n");
+	}
+	cs->hw.elsa.ale  = cs->hw.elsa.base;
+	cs->hw.elsa.isac = cs->hw.elsa.base + 1;
+	cs->hw.elsa.hscx = cs->hw.elsa.base + 1;
+	test_and_set_bit(HW_IPAC, &cs->HW_Flags);
+	cs->hw.elsa.timer = 0;
+	cs->hw.elsa.trig  = 0;
+	cs->irq_flags |= IRQF_SHARED;
+	printk(KERN_INFO
+	       "Elsa: %s defined at %#lx/0x%x IRQ %d\n",
+	       Elsa_Types[cs->subtyp],
+	       cs->hw.elsa.base,
+	       cs->hw.elsa.cfg,
+	       cs->irq);
+
+	return (1);
+}
+
+#else
+
+static int setup_elsa_pci(struct IsdnCard *card)
+{
+	return (1);
+}
+#endif /* CONFIG_PCI */
+
+static int setup_elsa_common(struct IsdnCard *card)
+{
+	struct IsdnCardState *cs = card->cs;
+	u_char val;
+	int bytecnt;
+
+	switch (cs->subtyp) {
+	case ELSA_PC:
+	case ELSA_PCC8:
+	case ELSA_PCC16:
+	case ELSA_QS1000:
+	case ELSA_PCMCIA:
+	case ELSA_PCMCIA_IPAC:
+		bytecnt = 8;
+		break;
+	case ELSA_PCFPRO:
+	case ELSA_PCF:
+	case ELSA_QS3000:
+	case ELSA_QS3000PCI:
+		bytecnt = 16;
+		break;
+	case ELSA_QS1000PCI:
+		bytecnt = 2;
+		break;
+	default:
+		printk(KERN_WARNING
+		       "Unknown ELSA subtype %d\n", cs->subtyp);
+		return (0);
+	}
+	/* In case of the elsa pcmcia card, this region is in use,
+	   reserved for us by the card manager. So we do not check it
+	   here, it would fail. */
+	if (cs->typ != ISDN_CTYPE_ELSA_PCMCIA && !request_region(cs->hw.elsa.base, bytecnt, "elsa isdn")) {
+		printk(KERN_WARNING
+		       "HiSax: ELSA config port %#lx-%#lx already in use\n",
+		       cs->hw.elsa.base,
+		       cs->hw.elsa.base + bytecnt);
+		return (0);
+	}
+	if ((cs->subtyp == ELSA_QS1000PCI) || (cs->subtyp == ELSA_QS3000PCI)) {
+		if (!request_region(cs->hw.elsa.cfg, 0x80, "elsa isdn pci")) {
+			printk(KERN_WARNING
+			       "HiSax: ELSA pci port %x-%x already in use\n",
+			       cs->hw.elsa.cfg,
+			       cs->hw.elsa.cfg + 0x80);
+			release_region(cs->hw.elsa.base, bytecnt);
+			return (0);
+		}
+	}
+#if ARCOFI_USE
+	init_arcofi(cs);
+#endif
+	setup_isac(cs);
+	cs->hw.elsa.tl.function = (void *) elsa_led_handler;
+	cs->hw.elsa.tl.data = (long) cs;
+	init_timer(&cs->hw.elsa.tl);
+	/* Teste Timer */
+	if (cs->hw.elsa.timer) {
+		byteout(cs->hw.elsa.trig, 0xff);
+		byteout(cs->hw.elsa.timer, 0);
+		if (!TimerRun(cs)) {
+			byteout(cs->hw.elsa.timer, 0);	/* 2. Versuch */
+			if (!TimerRun(cs)) {
+				printk(KERN_WARNING
+				       "Elsa: timer do not start\n");
+				release_io_elsa(cs);
+				return (0);
+			}
+		}
+		HZDELAY((HZ / 100) + 1);	/* wait >=10 ms */
+		if (TimerRun(cs)) {
+			printk(KERN_WARNING "Elsa: timer do not run down\n");
+			release_io_elsa(cs);
+			return (0);
+		}
+		printk(KERN_INFO "Elsa: timer OK; resetting card\n");
+	}
+	cs->BC_Read_Reg = &ReadHSCX;
+	cs->BC_Write_Reg = &WriteHSCX;
+	cs->BC_Send_Data = &hscx_fill_fifo;
+	cs->cardmsg = &Elsa_card_msg;
+	if ((cs->subtyp == ELSA_QS1000PCI) || (cs->subtyp == ELSA_QS3000PCI) || (cs->subtyp == ELSA_PCMCIA_IPAC)) {
+		cs->readisac = &ReadISAC_IPAC;
+		cs->writeisac = &WriteISAC_IPAC;
+		cs->readisacfifo = &ReadISACfifo_IPAC;
+		cs->writeisacfifo = &WriteISACfifo_IPAC;
+		cs->irq_func = &elsa_interrupt_ipac;
+		val = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ID);
+		printk(KERN_INFO "Elsa: IPAC version %x\n", val);
+	} else {
+		cs->readisac = &ReadISAC;
+		cs->writeisac = &WriteISAC;
+		cs->readisacfifo = &ReadISACfifo;
+		cs->writeisacfifo = &WriteISACfifo;
+		cs->irq_func = &elsa_interrupt;
+		ISACVersion(cs, "Elsa:");
+		if (HscxVersion(cs, "Elsa:")) {
+			printk(KERN_WARNING
+			       "Elsa: wrong HSCX versions check IO address\n");
+			release_io_elsa(cs);
+			return (0);
+		}
+	}
+	if (cs->subtyp == ELSA_PC) {
+		val = readitac(cs, ITAC_SYS);
+		printk(KERN_INFO "Elsa: ITAC version %s\n", ITACVer[val & 7]);
+		writeitac(cs, ITAC_ISEN, 0);
+		writeitac(cs, ITAC_RFIE, 0);
+		writeitac(cs, ITAC_XFIE, 0);
+		writeitac(cs, ITAC_SCIE, 0);
+		writeitac(cs, ITAC_STIE, 0);
+	}
+	return (1);
+}
+
+int setup_elsa(struct IsdnCard *card)
+{
+	int rc;
+	struct IsdnCardState *cs = card->cs;
+	char tmp[64];
+
+	strcpy(tmp, Elsa_revision);
+	printk(KERN_INFO "HiSax: Elsa driver Rev. %s\n", HiSax_getrev(tmp));
+	cs->hw.elsa.ctrl_reg = 0;
+	cs->hw.elsa.status = 0;
+	cs->hw.elsa.MFlag = 0;
+	cs->subtyp = 0;
+
+	if (cs->typ == ISDN_CTYPE_ELSA) {
+		rc = setup_elsa_isa(card);
+		if (!rc)
+			return (0);
+
+	} else if (cs->typ == ISDN_CTYPE_ELSA_PNP) {
+		rc = setup_elsa_isapnp(card);
+		if (!rc)
+			return (0);
+
+	} else if (cs->typ == ISDN_CTYPE_ELSA_PCMCIA)
+		setup_elsa_pcmcia(card);
+
+	else if (cs->typ == ISDN_CTYPE_ELSA_PCI) {
+		rc = setup_elsa_pci(card);
+		if (!rc)
+			return (0);
+
+	} else
+		return (0);
+
+	return setup_elsa_common(card);
+}