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linux-pinenote/drivers/isdn/hisax/elsa.c
Arnd Bergmann c728cc88ce isdn: hisax/elsa: fix sleep_on race in elsa FSM 
The state machine code in the elsa driver uses interruptible_sleep_on
to wait for state changes, which is racy. A closer look at the possible
states reveals that it is always used to wait for getting back into
ARCOFI_NOP, so we can use wait_event_interruptible instead.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-26 16:06:13 -05:00

1247 lines
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/* $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);
}
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