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0f6c10ead8
linux-next/drivers/isdn/hisax/teles3.c
Karsten Keil 0f6c10ead8 [PATCH] i4l make PCMCIA for all cards working with shared IRQ 
most current laptops do not work without allowing shared cardbus IRQs.
This patch enables IRQ sharing, so these cards work again.
This was tested with shared and none shared cardbus IRQs on different laptops
without problems.

Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-29 11:59:14 -07:00

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/* $Id: teles3.c,v 2.19.2.4 2004/01/13 23:48:39 keil Exp $
*
* low level stuff for Teles 16.3 & PNP 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.
*
* Thanks to Jan den Ouden
* Fritz Elfert
* Beat Doebeli
*
*/
#include <linux/init.h>
#include <linux/isapnp.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"
extern const char *CardType[];
static const char *teles3_revision = "$Revision: 2.19.2.4 $";
#define byteout(addr,val) outb(val,addr)
#define bytein(addr) inb(addr)
static inline u_char
readreg(unsigned int adr, u_char off)
{
return (bytein(adr + off));
}
static inline void
writereg(unsigned int adr, u_char off, u_char data)
{
byteout(adr + off, data);
}
static inline void
read_fifo(unsigned int adr, u_char * data, int size)
{
insb(adr, data, size);
}
static void
write_fifo(unsigned int adr, u_char * data, int size)
{
outsb(adr, data, size);
}
/* Interface functions */
static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
return (readreg(cs->hw.teles3.isac, offset));
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
writereg(cs->hw.teles3.isac, offset, value);
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
read_fifo(cs->hw.teles3.isacfifo, data, size);
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
write_fifo(cs->hw.teles3.isacfifo, data, size);
}
static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
return (readreg(cs->hw.teles3.hscx[hscx], offset));
}
static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
writereg(cs->hw.teles3.hscx[hscx], offset, value);
}
/*
* fast interrupt HSCX stuff goes here
*/
#define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.hscx[nr], reg)
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.hscx[nr], reg, data)
#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
#include "hscx_irq.c"
static irqreturn_t
teles3_interrupt(int intno, void *dev_id, struct pt_regs *regs)
{
#define MAXCOUNT 5
struct IsdnCardState *cs = dev_id;
u_char val;
u_long flags;
int count = 0;
spin_lock_irqsave(&cs->lock, flags);
val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
Start_HSCX:
if (val)
hscx_int_main(cs, val);
val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
Start_ISAC:
if (val)
isac_interrupt(cs, val);
count++;
val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
if (val && count < MAXCOUNT) {
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "HSCX IntStat after IntRoutine");
goto Start_HSCX;
}
val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
if (val && count < MAXCOUNT) {
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "ISAC IntStat after IntRoutine");
goto Start_ISAC;
}
if (count >= MAXCOUNT)
printk(KERN_WARNING "Teles3: more than %d loops in teles3_interrupt\n", count);
writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
writereg(cs->hw.teles3.isac, ISAC_MASK, 0xFF);
writereg(cs->hw.teles3.isac, ISAC_MASK, 0x0);
writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static inline void
release_ioregs(struct IsdnCardState *cs, int mask)
{
if (mask & 1)
release_region(cs->hw.teles3.isac + 32, 32);
if (mask & 2)
release_region(cs->hw.teles3.hscx[0] + 32, 32);
if (mask & 4)
release_region(cs->hw.teles3.hscx[1] + 32, 32);
}
static void
release_io_teles3(struct IsdnCardState *cs)
{
if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
release_region(cs->hw.teles3.hscx[1], 96);
} else {
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
release_region(cs->hw.teles3.cfg_reg, 1);
} else {
release_region(cs->hw.teles3.cfg_reg, 8);
}
}
release_ioregs(cs, 0x7);
}
}
static int
reset_teles3(struct IsdnCardState *cs)
{
u_char irqcfg;
if (cs->typ != ISDN_CTYPE_TELESPCMCIA) {
if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
switch (cs->irq) {
case 2:
case 9:
irqcfg = 0x00;
break;
case 3:
irqcfg = 0x02;
break;
case 4:
irqcfg = 0x04;
break;
case 5:
irqcfg = 0x06;
break;
case 10:
irqcfg = 0x08;
break;
case 11:
irqcfg = 0x0A;
break;
case 12:
irqcfg = 0x0C;
break;
case 15:
irqcfg = 0x0E;
break;
default:
return(1);
}
byteout(cs->hw.teles3.cfg_reg + 4, irqcfg);
HZDELAY(HZ / 10 + 1);
byteout(cs->hw.teles3.cfg_reg + 4, irqcfg | 1);
HZDELAY(HZ / 10 + 1);
} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
byteout(cs->hw.teles3.cfg_reg, 0xff);
HZDELAY(2);
byteout(cs->hw.teles3.cfg_reg, 0x00);
HZDELAY(2);
} else {
/* Reset off for 16.3 PnP , thanks to Georg Acher */
byteout(cs->hw.teles3.isac + 0x3c, 0);
HZDELAY(2);
byteout(cs->hw.teles3.isac + 0x3c, 1);
HZDELAY(2);
}
}
return(0);
}
static int
Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
u_long flags;
switch (mt) {
case CARD_RESET:
spin_lock_irqsave(&cs->lock, flags);
reset_teles3(cs);
spin_unlock_irqrestore(&cs->lock, flags);
return(0);
case CARD_RELEASE:
release_io_teles3(cs);
return(0);
case CARD_INIT:
spin_lock_irqsave(&cs->lock, flags);
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 teles_ids[] __devinitdata = {
{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
(unsigned long) "Teles 16.3 PnP" },
{ ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
(unsigned long) "Creatix 16.3 PnP" },
{ ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
(unsigned long) "Compaq ISDN S0" },
{ 0, }
};
static struct isapnp_device_id *ipid __devinitdata = &teles_ids[0];
static struct pnp_card *pnp_c __devinitdata = NULL;
#endif
int __devinit
setup_teles3(struct IsdnCard *card)
{
u_char val;
struct IsdnCardState *cs = card->cs;
char tmp[64];
strcpy(tmp, teles3_revision);
printk(KERN_INFO "HiSax: Teles IO driver Rev. %s\n", HiSax_getrev(tmp));
if ((cs->typ != ISDN_CTYPE_16_3) && (cs->typ != ISDN_CTYPE_PNP)
&& (cs->typ != ISDN_CTYPE_TELESPCMCIA) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA))
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",
__FUNCTION__, err);
return(0);
}
card->para[3] = pnp_port_start(pnp_d, 2);
card->para[2] = pnp_port_start(pnp_d, 1);
card->para[1] = pnp_port_start(pnp_d, 0);
card->para[0] = pnp_irq(pnp_d, 0);
if (!card->para[0] || !card->para[1] || !card->para[2]) {
printk(KERN_ERR "Teles PnP:some resources are missing %ld/%lx/%lx\n",
card->para[0], card->para[1], card->para[2]);
pnp_disable_dev(pnp_d);
return(0);
}
break;
} else {
printk(KERN_ERR "Teles PnP: PnP error card found, no device\n");
}
}
ipid++;
pnp_c = NULL;
}
if (!ipid->card_vendor) {
printk(KERN_INFO "Teles PnP: no ISAPnP card found\n");
return(0);
}
}
#endif
if (cs->typ == ISDN_CTYPE_16_3) {
cs->hw.teles3.cfg_reg = card->para[1];
switch (cs->hw.teles3.cfg_reg) {
case 0x180:
case 0x280:
case 0x380:
cs->hw.teles3.cfg_reg |= 0xc00;
break;
}
cs->hw.teles3.isac = cs->hw.teles3.cfg_reg - 0x420;
cs->hw.teles3.hscx[0] = cs->hw.teles3.cfg_reg - 0xc20;
cs->hw.teles3.hscx[1] = cs->hw.teles3.cfg_reg - 0x820;
} else if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
cs->hw.teles3.cfg_reg = 0;
cs->hw.teles3.hscx[0] = card->para[1] - 0x20;
cs->hw.teles3.hscx[1] = card->para[1];
cs->hw.teles3.isac = card->para[1] + 0x20;
} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
cs->hw.teles3.cfg_reg = card->para[3];
cs->hw.teles3.isac = card->para[2] - 32;
cs->hw.teles3.hscx[0] = card->para[1] - 32;
cs->hw.teles3.hscx[1] = card->para[1];
} else { /* PNP */
cs->hw.teles3.cfg_reg = 0;
cs->hw.teles3.isac = card->para[1] - 32;
cs->hw.teles3.hscx[0] = card->para[2] - 32;
cs->hw.teles3.hscx[1] = card->para[2];
}
cs->irq = card->para[0];
cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e;
cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e;
cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e;
if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
if (!request_region(cs->hw.teles3.hscx[1], 96, "HiSax Teles PCMCIA")) {
printk(KERN_WARNING
"HiSax: %s ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.teles3.hscx[1],
cs->hw.teles3.hscx[1] + 96);
return (0);
}
cs->irq_flags |= SA_SHIRQ; /* cardbus can share */
} else {
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
if (!request_region(cs->hw.teles3.cfg_reg, 1, "teles3 cfg")) {
printk(KERN_WARNING
"HiSax: %s config port %x already in use\n",
CardType[card->typ],
cs->hw.teles3.cfg_reg);
return (0);
}
} else {
if (!request_region(cs->hw.teles3.cfg_reg, 8, "teles3 cfg")) {
printk(KERN_WARNING
"HiSax: %s config port %x-%x already in use\n",
CardType[card->typ],
cs->hw.teles3.cfg_reg,
cs->hw.teles3.cfg_reg + 8);
return (0);
}
}
}
if (!request_region(cs->hw.teles3.isac + 32, 32, "HiSax isac")) {
printk(KERN_WARNING
"HiSax: %s isac ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.teles3.isac + 32,
cs->hw.teles3.isac + 64);
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
release_region(cs->hw.teles3.cfg_reg, 1);
} else {
release_region(cs->hw.teles3.cfg_reg, 8);
}
}
return (0);
}
if (!request_region(cs->hw.teles3.hscx[0] + 32, 32, "HiSax hscx A")) {
printk(KERN_WARNING
"HiSax: %s hscx A ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.teles3.hscx[0] + 32,
cs->hw.teles3.hscx[0] + 64);
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
release_region(cs->hw.teles3.cfg_reg, 1);
} else {
release_region(cs->hw.teles3.cfg_reg, 8);
}
}
release_ioregs(cs, 1);
return (0);
}
if (!request_region(cs->hw.teles3.hscx[1] + 32, 32, "HiSax hscx B")) {
printk(KERN_WARNING
"HiSax: %s hscx B ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.teles3.hscx[1] + 32,
cs->hw.teles3.hscx[1] + 64);
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
release_region(cs->hw.teles3.cfg_reg, 1);
} else {
release_region(cs->hw.teles3.cfg_reg, 8);
}
}
release_ioregs(cs, 3);
return (0);
}
}
if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
if ((val = bytein(cs->hw.teles3.cfg_reg + 0)) != 0x51) {
printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
cs->hw.teles3.cfg_reg + 0, val);
release_io_teles3(cs);
return (0);
}
if ((val = bytein(cs->hw.teles3.cfg_reg + 1)) != 0x93) {
printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
cs->hw.teles3.cfg_reg + 1, val);
release_io_teles3(cs);
return (0);
}
val = bytein(cs->hw.teles3.cfg_reg + 2);/* 0x1e=without AB
* 0x1f=with AB
* 0x1c 16.3 ???
* 0x39 16.3 1.1
* 0x38 16.3 1.3
* 0x46 16.3 with AB + Video (Teles-Vision)
*/
if (val != 0x46 && val != 0x39 && val != 0x38 && val != 0x1c && val != 0x1e && val != 0x1f) {
printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
cs->hw.teles3.cfg_reg + 2, val);
release_io_teles3(cs);
return (0);
}
}
printk(KERN_INFO
"HiSax: %s config irq:%d isac:0x%X cfg:0x%X\n",
CardType[cs->typ], cs->irq,
cs->hw.teles3.isac + 32, cs->hw.teles3.cfg_reg);
printk(KERN_INFO
"HiSax: hscx A:0x%X hscx B:0x%X\n",
cs->hw.teles3.hscx[0] + 32, cs->hw.teles3.hscx[1] + 32);
setup_isac(cs);
if (reset_teles3(cs)) {
printk(KERN_WARNING "Teles3: wrong IRQ\n");
release_io_teles3(cs);
return (0);
}
cs->readisac = &ReadISAC;
cs->writeisac = &WriteISAC;
cs->readisacfifo = &ReadISACfifo;
cs->writeisacfifo = &WriteISACfifo;
cs->BC_Read_Reg = &ReadHSCX;
cs->BC_Write_Reg = &WriteHSCX;
cs->BC_Send_Data = &hscx_fill_fifo;
cs->cardmsg = &Teles_card_msg;
cs->irq_func = &teles3_interrupt;
ISACVersion(cs, "Teles3:");
if (HscxVersion(cs, "Teles3:")) {
printk(KERN_WARNING
"Teles3: wrong HSCX versions check IO address\n");
release_io_teles3(cs);
return (0);
}
return (1);
}
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