avm_a1.c
/* avm_a1.c.shtml,v 1.1.1.1 2002/08/19 05:50:13 fritz Exp
* avm_a1.c low level stuff for AVM A1 (Fritz) isdn cards
*
* Author Karsten Keil (keil@temic-ech.spacenet.de)
*
*
* avm_a1.c.shtml,v
* Revision 1.1.1.1 2002/08/19 05:50:13 fritz
* - initial import
*
* Revision 2.8 1998/04/15 16:44:27 keil
* new init code
*
* Revision 2.7 1998/02/02 13:29:37 keil
* fast io
*
* Revision 2.6 1998/01/13 23:09:46 keil
* really disable timer
*
* Revision 2.5 1998/01/02 06:50:29 calle
* Perodic timer of A1 now disabled, no need for linux driver.
*
* Revision 2.4 1997/11/08 21:35:42 keil
* new l1 init
*
* Revision 2.3 1997/11/06 17:13:32 keil
* New 2.1 init code
*
* Revision 2.2 1997/10/29 18:55:48 keil
* changes for 2.1.60 (irq2dev_map)
*
* Revision 2.1 1997/07/27 21:47:13 keil
* new interface structures
*
* Revision 2.0 1997/06/26 11:02:48 keil
* New Layer and card interface
*
* Revision 1.6 1997/04/13 19:54:07 keil
* Change in IRQ check delay for SMP
*
* Revision 1.5 1997/04/06 22:54:10 keil
* Using SKB's
*
* Revision 1.4 1997/01/27 15:50:21 keil
* SMP proof,cosmetics
*
* Revision 1.3 1997/01/21 22:14:20 keil
* cleanups
*
* Revision 1.2 1996/10/27 22:07:31 keil
* cosmetic changes
*
* Revision 1.1 1996/10/13 20:04:49 keil
* Initial revision
*
*
*/
#define __NO_VERSION__
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"
extern const char *CardType[];
const char *avm_revision = "1.1.1.1";
#define AVM_A1_STAT_ISAC 0x01
#define AVM_A1_STAT_HSCX 0x02
#define AVM_A1_STAT_TIMER 0x04
#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.avm.isac, offset));
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
writereg(cs->hw.avm.isac, offset, value);
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
read_fifo(cs->hw.avm.isacfifo, data, size);
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
write_fifo(cs->hw.avm.isacfifo, data, size);
}
static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
return (readreg(cs->hw.avm.hscx[hscx], offset));
}
static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
writereg(cs->hw.avm.hscx[hscx], offset, value);
}
/*
* fast interrupt HSCX stuff goes here
*/
#define READHSCX(cs, nr, reg) readreg(cs->hw.avm.hscx[nr], reg)
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.avm.hscx[nr], reg, data)
#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
#include "hscx_irq.c"
static void
avm_a1_interrupt(int intno, void *dev_id, struct pt_regs *regs)
{
struct IsdnCardState *cs = dev_id;
u_char val, sval, stat = 0;
char tmp[32];
if (!cs) {
printk(KERN_WARNING "AVM A1: Spurious interrupt!\n");
return;
}
while (((sval = bytein(cs->hw.avm.cfg_reg)) & 0xf) != 0x7) {
if (!(sval & AVM_A1_STAT_TIMER)) {
byteout(cs->hw.avm.cfg_reg, 0x1E);
sval = bytein(cs->hw.avm.cfg_reg);
} else if (cs->debug & L1_DEB_INTSTAT) {
sprintf(tmp, "avm IntStatus %x", sval);
debugl1(cs, tmp);
}
if (!(sval & AVM_A1_STAT_HSCX)) {
val = readreg(cs->hw.avm.hscx[1], HSCX_ISTA);
if (val) {
hscx_int_main(cs, val);
stat |= 1;
}
}
if (!(sval & AVM_A1_STAT_ISAC)) {
val = readreg(cs->hw.avm.isac, ISAC_ISTA);
if (val) {
isac_interrupt(cs, val);
stat |= 2;
}
}
}
if (stat & 1) {
writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0xFF);
writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0xFF);
writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0x0);
writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0x0);
}
if (stat & 2) {
writereg(cs->hw.avm.isac, ISAC_MASK, 0xFF);
writereg(cs->hw.avm.isac, ISAC_MASK, 0x0);
}
}
inline static void
release_ioregs(struct IsdnCardState *cs, int mask)
{
release_region(cs->hw.avm.cfg_reg, 8);
if (mask & 1)
release_region(cs->hw.avm.isac + 32, 32);
if (mask & 2)
release_region(cs->hw.avm.isacfifo, 1);
if (mask & 4)
release_region(cs->hw.avm.hscx[0] + 32, 32);
if (mask & 8)
release_region(cs->hw.avm.hscxfifo[0], 1);
if (mask & 0x10)
release_region(cs->hw.avm.hscx[1] + 32, 32);
if (mask & 0x20)
release_region(cs->hw.avm.hscxfifo[1], 1);
}
static int
AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
switch (mt) {
case CARD_RESET:
return(0);
case CARD_RELEASE:
release_ioregs(cs, 0x3f);
return(0);
case CARD_SETIRQ:
return(request_irq(cs->irq, &avm_a1_interrupt,
I4L_IRQ_FLAG, "HiSax", cs));
case CARD_INIT:
inithscxisac(cs, 1);
byteout(cs->hw.avm.cfg_reg, 0x16);
byteout(cs->hw.avm.cfg_reg, 0x1E);
inithscxisac(cs, 2);
return(0);
case CARD_TEST:
return(0);
}
return(0);
}
__initfunc(int
setup_avm_a1(struct IsdnCard *card))
{
u_char val;
struct IsdnCardState *cs = card->cs;
long flags;
char tmp[64];
strcpy(tmp, avm_revision);
printk(KERN_INFO "HiSax: AVM driver Rev. %s\n", HiSax_getrev(tmp));
if (cs->typ != ISDN_CTYPE_A1)
return (0);
cs->hw.avm.cfg_reg = card->para[1] + 0x1800;
cs->hw.avm.isac = card->para[1] + 0x1400 - 0x20;
cs->hw.avm.hscx[0] = card->para[1] + 0x400 - 0x20;
cs->hw.avm.hscx[1] = card->para[1] + 0xc00 - 0x20;
cs->hw.avm.isacfifo = card->para[1] + 0x1000;
cs->hw.avm.hscxfifo[0] = card->para[1];
cs->hw.avm.hscxfifo[1] = card->para[1] + 0x800;
cs->irq = card->para[0];
if (check_region((cs->hw.avm.cfg_reg), 8)) {
printk(KERN_WARNING
"HiSax: %s config port %x-%x already in use\n",
CardType[card->typ],
cs->hw.avm.cfg_reg,
cs->hw.avm.cfg_reg + 8);
return (0);
} else {
request_region(cs->hw.avm.cfg_reg, 8, "avm cfg");
}
if (check_region((cs->hw.avm.isac + 32), 32)) {
printk(KERN_WARNING
"HiSax: %s isac ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.avm.isac + 32,
cs->hw.avm.isac + 64);
release_ioregs(cs, 0);
return (0);
} else {
request_region(cs->hw.avm.isac + 32, 32, "HiSax isac");
}
if (check_region((cs->hw.avm.isacfifo), 1)) {
printk(KERN_WARNING
"HiSax: %s isac fifo port %x already in use\n",
CardType[cs->typ],
cs->hw.avm.isacfifo);
release_ioregs(cs, 1);
return (0);
} else {
request_region(cs->hw.avm.isacfifo, 1, "HiSax isac fifo");
}
if (check_region((cs->hw.avm.hscx[0]) + 32, 32)) {
printk(KERN_WARNING
"HiSax: %s hscx A ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.avm.hscx[0] + 32,
cs->hw.avm.hscx[0] + 64);
release_ioregs(cs, 3);
return (0);
} else {
request_region(cs->hw.avm.hscx[0] + 32, 32, "HiSax hscx A");
}
if (check_region(cs->hw.avm.hscxfifo[0], 1)) {
printk(KERN_WARNING
"HiSax: %s hscx A fifo port %x already in use\n",
CardType[cs->typ],
cs->hw.avm.hscxfifo[0]);
release_ioregs(cs, 7);
return (0);
} else {
request_region(cs->hw.avm.hscxfifo[0], 1, "HiSax hscx A fifo");
}
if (check_region(cs->hw.avm.hscx[1] + 32, 32)) {
printk(KERN_WARNING
"HiSax: %s hscx B ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.avm.hscx[1] + 32,
cs->hw.avm.hscx[1] + 64);
release_ioregs(cs, 0xf);
return (0);
} else {
request_region(cs->hw.avm.hscx[1] + 32, 32, "HiSax hscx B");
}
if (check_region(cs->hw.avm.hscxfifo[1], 1)) {
printk(KERN_WARNING
"HiSax: %s hscx B fifo port %x already in use\n",
CardType[cs->typ],
cs->hw.avm.hscxfifo[1]);
release_ioregs(cs, 0x1f);
return (0);
} else {
request_region(cs->hw.avm.hscxfifo[1], 1, "HiSax hscx B fifo");
}
save_flags(flags);
byteout(cs->hw.avm.cfg_reg, 0x0);
sti();
HZDELAY(HZ / 5 + 1);
byteout(cs->hw.avm.cfg_reg, 0x1);
HZDELAY(HZ / 5 + 1);
byteout(cs->hw.avm.cfg_reg, 0x0);
HZDELAY(HZ / 5 + 1);
val = cs->irq;
if (val == 9)
val = 2;
byteout(cs->hw.avm.cfg_reg + 1, val);
HZDELAY(HZ / 5 + 1);
byteout(cs->hw.avm.cfg_reg, 0x0);
HZDELAY(HZ / 5 + 1);
restore_flags(flags);
val = bytein(cs->hw.avm.cfg_reg);
printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
cs->hw.avm.cfg_reg, val);
val = bytein(cs->hw.avm.cfg_reg + 3);
printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
cs->hw.avm.cfg_reg + 3, val);
val = bytein(cs->hw.avm.cfg_reg + 2);
printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
cs->hw.avm.cfg_reg + 2, val);
val = bytein(cs->hw.avm.cfg_reg);
printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
cs->hw.avm.cfg_reg, val);
printk(KERN_INFO
"HiSax: %s config irq:%d cfg:0x%X\n",
CardType[cs->typ], cs->irq,
cs->hw.avm.cfg_reg);
printk(KERN_INFO
"HiSax: isac:0x%X/0x%X\n",
cs->hw.avm.isac + 32, cs->hw.avm.isacfifo);
printk(KERN_INFO
"HiSax: hscx A:0x%X/0x%X hscx B:0x%X/0x%X\n",
cs->hw.avm.hscx[0] + 32, cs->hw.avm.hscxfifo[0],
cs->hw.avm.hscx[1] + 32, cs->hw.avm.hscxfifo[1]);
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 = &AVM_card_msg;
ISACVersion(cs, "AVM A1:");
if (HscxVersion(cs, "AVM A1:")) {
printk(KERN_WARNING
"AVM A1: wrong HSCX versions check IO address\n");
release_ioregs(cs, 0x3f);
return (0);
}
return (1);
}
