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linux/drivers/isdn/hisax/gazel.c
Olivier Blin 49f2991585 [PATCH] i4l: add Olitec ISDN PCI card in hisax gazel driver 
This patch adds support for the Olitec ISDN PCI card in the hisax gazel
driver.  The gazel driver supports this card, but wasn't aware of its PCI
ids.  Users used to modify the PCI ids of a supported card in
include/linux/pci_ids.h and recompile their kernel to get this card
running, as said in most Howtos.  This patch makes the hisax gazel driver
recognize the PCI ids of the Olitec ISDN PCI card.

Signed-off-by: Olivier Blin <oblin@mandriva.com>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:25:51 -07:00

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/* $Id: gazel.c,v 2.19.2.4 2004/01/14 16:04:48 keil Exp $
*
* low level stuff for Gazel isdn cards
*
* Author BeWan Systems
* based on source code from Karsten Keil
* Copyright by BeWan Systems
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#include <linux/config.h>
#include <linux/init.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"
#include "ipac.h"
#include <linux/pci.h>
extern const char *CardType[];
static const char *gazel_revision = "$Revision: 2.19.2.4 $";
#define R647 1
#define R685 2
#define R753 3
#define R742 4
#define PLX_CNTRL 0x50 /* registre de controle PLX */
#define RESET_GAZEL 0x4
#define RESET_9050 0x40000000
#define PLX_INCSR 0x4C /* registre d'IT du 9050 */
#define INT_ISAC_EN 0x8 /* 1 = enable IT isac */
#define INT_ISAC 0x20 /* 1 = IT isac en cours */
#define INT_HSCX_EN 0x1 /* 1 = enable IT hscx */
#define INT_HSCX 0x4 /* 1 = IT hscx en cours */
#define INT_PCI_EN 0x40 /* 1 = enable IT PCI */
#define INT_IPAC_EN 0x3 /* enable IT ipac */
#define byteout(addr,val) outb(val,addr)
#define bytein(addr) inb(addr)
static inline u_char
readreg(unsigned int adr, u_short off)
{
return bytein(adr + off);
}
static inline void
writereg(unsigned int adr, u_short 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);
}
static inline u_char
readreg_ipac(unsigned int adr, u_short off)
{
register u_char ret;
byteout(adr, off);
ret = bytein(adr + 4);
return ret;
}
static inline void
writereg_ipac(unsigned int adr, u_short off, u_char data)
{
byteout(adr, off);
byteout(adr + 4, data);
}
static inline void
read_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size)
{
byteout(adr, off);
insb(adr + 4, data, size);
}
static void
write_fifo_ipac(unsigned int adr, u_short off, u_char * data, int size)
{
byteout(adr, off);
outsb(adr + 4, data, size);
}
/* Interface functions */
static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
u_short off2 = offset;
switch (cs->subtyp) {
case R647:
off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
case R685:
return (readreg(cs->hw.gazel.isac, off2));
case R753:
case R742:
return (readreg_ipac(cs->hw.gazel.ipac, 0x80 + off2));
}
return 0;
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
u_short off2 = offset;
switch (cs->subtyp) {
case R647:
off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
case R685:
writereg(cs->hw.gazel.isac, off2, value);
break;
case R753:
case R742:
writereg_ipac(cs->hw.gazel.ipac, 0x80 + off2, value);
break;
}
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
switch (cs->subtyp) {
case R647:
case R685:
read_fifo(cs->hw.gazel.isacfifo, data, size);
break;
case R753:
case R742:
read_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
break;
}
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
switch (cs->subtyp) {
case R647:
case R685:
write_fifo(cs->hw.gazel.isacfifo, data, size);
break;
case R753:
case R742:
write_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
break;
}
}
static void
ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
{
switch (cs->subtyp) {
case R647:
case R685:
read_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
break;
case R753:
case R742:
read_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
break;
}
}
static void
WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
{
switch (cs->subtyp) {
case R647:
case R685:
write_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
break;
case R753:
case R742:
write_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
break;
}
}
static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
u_short off2 = offset;
switch (cs->subtyp) {
case R647:
off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
case R685:
return (readreg(cs->hw.gazel.hscx[hscx], off2));
case R753:
case R742:
return (readreg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2));
}
return 0;
}
static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
u_short off2 = offset;
switch (cs->subtyp) {
case R647:
off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
case R685:
writereg(cs->hw.gazel.hscx[hscx], off2, value);
break;
case R753:
case R742:
writereg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2, value);
break;
}
}
/*
* fast interrupt HSCX stuff goes here
*/
#define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg)
#define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data)
#define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt)
#include "hscx_irq.c"
static irqreturn_t
gazel_interrupt(int intno, void *dev_id, struct pt_regs *regs)
{
#define MAXCOUNT 5
struct IsdnCardState *cs = dev_id;
u_char valisac, valhscx;
int count = 0;
u_long flags;
spin_lock_irqsave(&cs->lock, flags);
do {
valhscx = ReadHSCX(cs, 1, HSCX_ISTA);
if (valhscx)
hscx_int_main(cs, valhscx);
valisac = ReadISAC(cs, ISAC_ISTA);
if (valisac)
isac_interrupt(cs, valisac);
count++;
} while ((valhscx || valisac) && (count < MAXCOUNT));
WriteHSCX(cs, 0, HSCX_MASK, 0xFF);
WriteHSCX(cs, 1, HSCX_MASK, 0xFF);
WriteISAC(cs, ISAC_MASK, 0xFF);
WriteISAC(cs, ISAC_MASK, 0x0);
WriteHSCX(cs, 0, HSCX_MASK, 0x0);
WriteHSCX(cs, 1, HSCX_MASK, 0x0);
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static irqreturn_t
gazel_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
{
struct IsdnCardState *cs = dev_id;
u_char ista, val;
int count = 0;
u_long flags;
spin_lock_irqsave(&cs->lock, flags);
ista = ReadISAC(cs, IPAC_ISTA - 0x80);
do {
if (ista & 0x0f) {
val = ReadHSCX(cs, 1, HSCX_ISTA);
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 & ReadISAC(cs, ISAC_ISTA);
if (val) {
isac_interrupt(cs, val);
}
}
if (ista & 0x10) {
val = 0x01;
isac_interrupt(cs, val);
}
ista = ReadISAC(cs, IPAC_ISTA - 0x80);
count++;
}
while ((ista & 0x3f) && (count < MAXCOUNT));
WriteISAC(cs, IPAC_MASK - 0x80, 0xFF);
WriteISAC(cs, IPAC_MASK - 0x80, 0xC0);
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static void
release_io_gazel(struct IsdnCardState *cs)
{
unsigned int i;
switch (cs->subtyp) {
case R647:
for (i = 0x0000; i < 0xC000; i += 0x1000)
release_region(i + cs->hw.gazel.hscx[0], 16);
release_region(0xC000 + cs->hw.gazel.hscx[0], 1);
break;
case R685:
release_region(cs->hw.gazel.hscx[0], 0x100);
release_region(cs->hw.gazel.cfg_reg, 0x80);
break;
case R753:
release_region(cs->hw.gazel.ipac, 0x8);
release_region(cs->hw.gazel.cfg_reg, 0x80);
break;
case R742:
release_region(cs->hw.gazel.ipac, 8);
break;
}
}
static int
reset_gazel(struct IsdnCardState *cs)
{
unsigned long plxcntrl, addr = cs->hw.gazel.cfg_reg;
switch (cs->subtyp) {
case R647:
writereg(addr, 0, 0);
HZDELAY(10);
writereg(addr, 0, 1);
HZDELAY(2);
break;
case R685:
plxcntrl = inl(addr + PLX_CNTRL);
plxcntrl |= (RESET_9050 + RESET_GAZEL);
outl(plxcntrl, addr + PLX_CNTRL);
plxcntrl &= ~(RESET_9050 + RESET_GAZEL);
HZDELAY(4);
outl(plxcntrl, addr + PLX_CNTRL);
HZDELAY(10);
outb(INT_ISAC_EN + INT_HSCX_EN + INT_PCI_EN, addr + PLX_INCSR);
break;
case R753:
plxcntrl = inl(addr + PLX_CNTRL);
plxcntrl |= (RESET_9050 + RESET_GAZEL);
outl(plxcntrl, addr + PLX_CNTRL);
plxcntrl &= ~(RESET_9050 + RESET_GAZEL);
WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
HZDELAY(4);
outl(plxcntrl, addr + PLX_CNTRL);
HZDELAY(10);
WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00);
WriteISAC(cs, IPAC_ACFG - 0x80, 0xff);
WriteISAC(cs, IPAC_AOE - 0x80, 0x0);
WriteISAC(cs, IPAC_MASK - 0x80, 0xff);
WriteISAC(cs, IPAC_CONF - 0x80, 0x1);
outb(INT_IPAC_EN + INT_PCI_EN, addr + PLX_INCSR);
WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
break;
case R742:
WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
HZDELAY(4);
WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00);
WriteISAC(cs, IPAC_ACFG - 0x80, 0xff);
WriteISAC(cs, IPAC_AOE - 0x80, 0x0);
WriteISAC(cs, IPAC_MASK - 0x80, 0xff);
WriteISAC(cs, IPAC_CONF - 0x80, 0x1);
WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
break;
}
return (0);
}
static int
Gazel_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
u_long flags;
switch (mt) {
case CARD_RESET:
spin_lock_irqsave(&cs->lock, flags);
reset_gazel(cs);
spin_unlock_irqrestore(&cs->lock, flags);
return (0);
case CARD_RELEASE:
release_io_gazel(cs);
return (0);
case CARD_INIT:
spin_lock_irqsave(&cs->lock, flags);
inithscxisac(cs, 1);
if ((cs->subtyp==R647)||(cs->subtyp==R685)) {
int i;
for (i=0;i<(2+MAX_WAITING_CALLS);i++) {
cs->bcs[i].hw.hscx.tsaxr0 = 0x1f;
cs->bcs[i].hw.hscx.tsaxr1 = 0x23;
}
}
spin_unlock_irqrestore(&cs->lock, flags);
return (0);
case CARD_TEST:
return (0);
}
return (0);
}
static int
reserve_regions(struct IsdnCard *card, struct IsdnCardState *cs)
{
unsigned int i, j, base = 0, adr = 0, len = 0;
switch (cs->subtyp) {
case R647:
base = cs->hw.gazel.hscx[0];
if (!request_region(adr = (0xC000 + base), len = 1, "gazel"))
goto error;
for (i = 0x0000; i < 0xC000; i += 0x1000) {
if (!request_region(adr = (i + base), len = 16, "gazel"))
goto error;
}
if (i != 0xC000) {
for (j = 0; j < i; j+= 0x1000)
release_region(j + base, 16);
release_region(0xC000 + base, 1);
goto error;
}
break;
case R685:
if (!request_region(adr = cs->hw.gazel.hscx[0], len = 0x100, "gazel"))
goto error;
if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) {
release_region(cs->hw.gazel.hscx[0],0x100);
goto error;
}
break;
case R753:
if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel"))
goto error;
if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) {
release_region(cs->hw.gazel.ipac, 8);
goto error;
}
break;
case R742:
if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel"))
goto error;
break;
}
return 0;
error:
printk(KERN_WARNING "Gazel: %s io ports 0x%x-0x%x already in use\n",
CardType[cs->typ], adr, adr + len);
return 1;
}
static int __init
setup_gazelisa(struct IsdnCard *card, struct IsdnCardState *cs)
{
printk(KERN_INFO "Gazel: ISA PnP card automatic recognition\n");
// we got an irq parameter, assume it is an ISA card
// R742 decodes address even in not started...
// R647 returns FF if not present or not started
// eventually needs improvment
if (readreg_ipac(card->para[1], IPAC_ID) == 1)
cs->subtyp = R742;
else
cs->subtyp = R647;
setup_isac(cs);
cs->hw.gazel.cfg_reg = card->para[1] + 0xC000;
cs->hw.gazel.ipac = card->para[1];
cs->hw.gazel.isac = card->para[1] + 0x8000;
cs->hw.gazel.hscx[0] = card->para[1];
cs->hw.gazel.hscx[1] = card->para[1] + 0x4000;
cs->irq = card->para[0];
cs->hw.gazel.isacfifo = cs->hw.gazel.isac;
cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0];
cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1];
switch (cs->subtyp) {
case R647:
printk(KERN_INFO "Gazel: Card ISA R647/R648 found\n");
cs->dc.isac.adf2 = 0x87;
printk(KERN_INFO
"Gazel: config irq:%d isac:0x%X cfg:0x%X\n",
cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg);
printk(KERN_INFO
"Gazel: hscx A:0x%X hscx B:0x%X\n",
cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]);
break;
case R742:
printk(KERN_INFO "Gazel: Card ISA R742 found\n");
test_and_set_bit(HW_IPAC, &cs->HW_Flags);
printk(KERN_INFO
"Gazel: config irq:%d ipac:0x%X\n",
cs->irq, cs->hw.gazel.ipac);
break;
}
return (0);
}
static struct pci_dev *dev_tel __initdata = NULL;
static int __init
setup_gazelpci(struct IsdnCardState *cs)
{
u_int pci_ioaddr0 = 0, pci_ioaddr1 = 0;
u_char pci_irq = 0, found;
u_int nbseek, seekcard;
printk(KERN_WARNING "Gazel: PCI card automatic recognition\n");
found = 0;
seekcard = PCI_DEVICE_ID_PLX_R685;
for (nbseek = 0; nbseek < 4; nbseek++) {
if ((dev_tel = pci_find_device(PCI_VENDOR_ID_PLX,
seekcard, dev_tel))) {
if (pci_enable_device(dev_tel))
return 1;
pci_irq = dev_tel->irq;
pci_ioaddr0 = pci_resource_start(dev_tel, 1);
pci_ioaddr1 = pci_resource_start(dev_tel, 2);
found = 1;
}
if (found)
break;
else {
switch (seekcard) {
case PCI_DEVICE_ID_PLX_R685:
seekcard = PCI_DEVICE_ID_PLX_R753;
break;
case PCI_DEVICE_ID_PLX_R753:
seekcard = PCI_DEVICE_ID_PLX_DJINN_ITOO;
break;
case PCI_DEVICE_ID_PLX_DJINN_ITOO:
seekcard = PCI_DEVICE_ID_PLX_OLITEC;
break;
}
}
}
if (!found) {
printk(KERN_WARNING "Gazel: No PCI card found\n");
return (1);
}
if (!pci_irq) {
printk(KERN_WARNING "Gazel: No IRQ for PCI card found\n");
return 1;
}
cs->hw.gazel.pciaddr[0] = pci_ioaddr0;
cs->hw.gazel.pciaddr[1] = pci_ioaddr1;
setup_isac(cs);
pci_ioaddr1 &= 0xfffe;
cs->hw.gazel.cfg_reg = pci_ioaddr0 & 0xfffe;
cs->hw.gazel.ipac = pci_ioaddr1;
cs->hw.gazel.isac = pci_ioaddr1 + 0x80;
cs->hw.gazel.hscx[0] = pci_ioaddr1;
cs->hw.gazel.hscx[1] = pci_ioaddr1 + 0x40;
cs->hw.gazel.isacfifo = cs->hw.gazel.isac;
cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0];
cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1];
cs->irq = pci_irq;
cs->irq_flags |= SA_SHIRQ;
switch (seekcard) {
case PCI_DEVICE_ID_PLX_R685:
printk(KERN_INFO "Gazel: Card PCI R685 found\n");
cs->subtyp = R685;
cs->dc.isac.adf2 = 0x87;
printk(KERN_INFO
"Gazel: config irq:%d isac:0x%X cfg:0x%X\n",
cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg);
printk(KERN_INFO
"Gazel: hscx A:0x%X hscx B:0x%X\n",
cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]);
break;
case PCI_DEVICE_ID_PLX_R753:
case PCI_DEVICE_ID_PLX_DJINN_ITOO:
case PCI_DEVICE_ID_PLX_OLITEC:
printk(KERN_INFO "Gazel: Card PCI R753 found\n");
cs->subtyp = R753;
test_and_set_bit(HW_IPAC, &cs->HW_Flags);
printk(KERN_INFO
"Gazel: config irq:%d ipac:0x%X cfg:0x%X\n",
cs->irq, cs->hw.gazel.ipac, cs->hw.gazel.cfg_reg);
break;
}
return (0);
}
int __init
setup_gazel(struct IsdnCard *card)
{
struct IsdnCardState *cs = card->cs;
char tmp[64];
u_char val;
strcpy(tmp, gazel_revision);
printk(KERN_INFO "Gazel: Driver Revision %s\n", HiSax_getrev(tmp));
if (cs->typ != ISDN_CTYPE_GAZEL)
return (0);
if (card->para[0]) {
if (setup_gazelisa(card, cs))
return (0);
} else {
#ifdef CONFIG_PCI
if (setup_gazelpci(cs))
return (0);
#else
printk(KERN_WARNING "Gazel: Card PCI requested and NO_PCI_BIOS, unable to config\n");
return (0);
#endif /* CONFIG_PCI */
}
if (reserve_regions(card, cs)) {
return (0);
}
if (reset_gazel(cs)) {
printk(KERN_WARNING "Gazel: wrong IRQ\n");
release_io_gazel(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 = &Gazel_card_msg;
switch (cs->subtyp) {
case R647:
case R685:
cs->irq_func = &gazel_interrupt;
ISACVersion(cs, "Gazel:");
if (HscxVersion(cs, "Gazel:")) {
printk(KERN_WARNING
"Gazel: wrong HSCX versions check IO address\n");
release_io_gazel(cs);
return (0);
}
break;
case R742:
case R753:
cs->irq_func = &gazel_interrupt_ipac;
val = ReadISAC(cs, IPAC_ID - 0x80);
printk(KERN_INFO "Gazel: IPAC version %x\n", val);
break;
}
return (1);
}
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