/* $Id: teles0.c,v 2.15.2.4 2004/01/13 23:48:39 keil Exp $
*
* low level stuff for Teles Memory IO isdn cards
*
* Author Karsten Keil
* based on the teles driver from Jan den Ouden
* 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 "hisax.h"
#include "isdnl1.h"
#include "isac.h"
#include "hscx.h"
extern const char *CardType[];
static const char *teles0_revision = "$Revision: 2.15.2.4 $";
#define TELES_IOMEM_SIZE 0x400
#define byteout(addr,val) outb(val,addr)
#define bytein(addr) inb(addr)
static inline u_char
readisac(void __iomem *adr, u_char off)
{
return readb(adr + ((off & 1) ? 0x2ff : 0x100) + off);
}
static inline void
writeisac(void __iomem *adr, u_char off, u_char data)
{
writeb(data, adr + ((off & 1) ? 0x2ff : 0x100) + off); mb();
}
static inline u_char
readhscx(void __iomem *adr, int hscx, u_char off)
{
return readb(adr + (hscx ? 0x1c0 : 0x180) +
((off & 1) ? 0x1ff : 0) + off);
}
static inline void
writehscx(void __iomem *adr, int hscx, u_char off, u_char data)
{
writeb(data, adr + (hscx ? 0x1c0 : 0x180) +
((off & 1) ? 0x1ff : 0) + off); mb();
}
static inline void
read_fifo_isac(void __iomem *adr, u_char * data, int size)
{
register int i;
register u_char __iomem *ad = adr + 0x100;
for (i = 0; i < size; i++)
data[i] = readb(ad);
}
static inline void
write_fifo_isac(void __iomem *adr, u_char * data, int size)
{
register int i;
register u_char __iomem *ad = adr + 0x100;
for (i = 0; i < size; i++) {
writeb(data[i], ad); mb();
}
}
static inline void
read_fifo_hscx(void __iomem *adr, int hscx, u_char * data, int size)
{
register int i;
register u_char __iomem *ad = adr + (hscx ? 0x1c0 : 0x180);
for (i = 0; i < size; i++)
data[i] = readb(ad);
}
static inline void
write_fifo_hscx(void __iomem *adr, int hscx, u_char * data, int size)
{
int i;
register u_char __iomem *ad = adr + (hscx ? 0x1c0 : 0x180);
for (i = 0; i < size; i++) {
writeb(data[i], ad); mb();
}
}
/* Interface functions */
static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
return (readisac(cs->hw.teles0.membase, offset));
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
writeisac(cs->hw.teles0.membase, offset, value);
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
read_fifo_isac(cs->hw.teles0.membase, data, size);
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
write_fifo_isac(cs->hw.teles0.membase, data, size);
}
static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
return (readhscx(cs->hw.teles0.membase, hscx, offset));
}
static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
writehscx(cs->hw.teles0.membase, hscx, offset, value);
}
/*
* fast interrupt HSCX stuff goes here
*/
#define READHSCX(cs, nr, reg) readhscx(cs->hw.teles0.membase, nr, reg)
#define WRITEHSCX(cs, nr, reg, data) writehscx(cs->hw.teles0.membase, nr, reg, data)
#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt)
#include "hscx_irq.c"
static irqreturn_t
teles0_interrupt(int intno, void *dev_id, struct pt_regs *regs)
{
struct IsdnCardState *cs = dev_id;
u_char val;
u_long flags;
int count = 0;
spin_lock_irqsave(&cs->lock, flags);
val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA);
Start_HSCX:
if (val)
hscx_int_main(cs, val);
val = readisac(cs->hw.teles0.membase, ISAC_ISTA);
Start_ISAC:
if (val)
isac_interrupt(cs, val);
count++;
val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA);
if (val && count < 5) {
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "HSCX IntStat after IntRoutine");
goto Start_HSCX;
}
val = readisac(cs->hw.teles0.membase, ISAC_ISTA);
if (val && count < 5) {
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "ISAC IntStat after IntRoutine");
goto Start_ISAC;
}
writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0xFF);
writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0xFF);
writeisac(cs->hw.teles0.membase, ISAC_MASK, 0xFF);
writeisac(cs->hw.teles0.membase, ISAC_MASK, 0x0);
writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0x0);
writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0x0);
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static void
release_io_teles0(struct IsdnCardState *cs)
{
if (cs->hw.teles0.cfg_reg)
release_region(cs->hw.teles0.cfg_reg, 8);
iounmap(cs->hw.teles0.membase);
release_mem_region(cs->hw.teles0.phymem, TELES_IOMEM_SIZE);
}
static int
reset_teles0(struct IsdnCardState *cs)
{
u_char cfval;
if (cs->hw.teles0.cfg_reg) {
switch (cs->irq) {
case 2:
case 9:
cfval = 0x00;
break;
case 3:
cfval = 0x02;
break;
case 4:
cfval = 0x04;
break;
case 5:
cfval = 0x06;
break;
case 10:
cfval = 0x08;
break;
case 11:
cfval = 0x0A;
break;
case 12:
cfval = 0x0C;
break;
case 15:
cfval = 0x0E;
break;
default:
return(1);
}
cfval |= ((cs->hw.teles0.phymem >> 9) & 0xF0);
byteout(cs->hw.teles0.cfg_reg + 4, cfval);
HZDELAY(HZ / 10 + 1);
byteout(cs->hw.teles0.cfg_reg + 4, cfval | 1);
HZDELAY(HZ / 10 + 1);
}
writeb(0, cs->hw.teles0.membase + 0x80); mb();
HZDELAY(HZ / 5 + 1);
writeb(1, cs->hw.teles0.membase + 0x80); mb();
HZDELAY(HZ / 5 + 1);
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_teles0(cs);
spin_unlock_irqrestore(&cs->lock, flags);
return(0);
case CARD_RELEASE:
release_io_teles0(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);
}
int __init
setup_teles0(struct IsdnCard *card)
{
u_char val;
struct IsdnCardState *cs = card->cs;
char tmp[64];
strcpy(tmp, teles0_revision);
printk(KERN_INFO "HiSax: Teles 8.0/16.0 driver Rev. %s\n", HiSax_getrev(tmp));
if ((cs->typ != ISDN_CTYPE_16_0) && (cs->typ != ISDN_CTYPE_8_0))
return (0);
if (cs->typ == ISDN_CTYPE_16_0)
cs->hw.teles0.cfg_reg = card->para[2];
else /* 8.0 */
cs->hw.teles0.cfg_reg = 0;
if (card->para[1] < 0x10000) {
card->para[1] <<= 4;
printk(KERN_INFO
"Teles0: membase configured DOSish, assuming 0x%lx\n",
(unsigned long) card->para[1]);
}
cs->irq = card->para[0];
if (cs->hw.teles0.cfg_reg) {
if (!request_region(cs->hw.teles0.cfg_reg, 8, "teles cfg")) {
printk(KERN_WARNING
"HiSax: %s config port %x-%x already in use\n",
CardType[card->typ],
cs->hw.teles0.cfg_reg,
cs->hw.teles0.cfg_reg + 8);
return (0);
}
}
if (cs->hw.teles0.cfg_reg) {
if ((val = bytein(cs->hw.teles0.cfg_reg + 0)) != 0x51) {
printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n",
cs->hw.teles0.cfg_reg + 0, val);
release_region(cs->hw.teles0.cfg_reg, 8);
return (0);
}
if ((val = bytein(cs->hw.teles0.cfg_reg + 1)) != 0x93) {
printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n",
cs->hw.teles0.cfg_reg + 1, val);
release_region(cs->hw.teles0.cfg_reg, 8);
return (0);
}
val = bytein(cs->hw.teles0.cfg_reg + 2); /* 0x1e=without AB
* 0x1f=with AB
* 0x1c 16.3 ???
*/
if (val != 0x1e && val != 0x1f) {
printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n",
cs->hw.teles0.cfg_reg + 2, val);
release_region(cs->hw.teles0.cfg_reg, 8);
return (0);
}
}
/* 16.0 and 8.0 designed for IOM1 */
test_and_set_bit(HW_IOM1, &cs->HW_Flags);
cs->hw.teles0.phymem = card->para[1];
if (!request_mem_region(cs->hw.teles0.phymem, TELES_IOMEM_SIZE, "teles iomem")) {
printk(KERN_WARNING
"HiSax: %s memory region %lx-%lx already in use\n",
CardType[card->typ],
cs->hw.teles0.phymem,
cs->hw.teles0.phymem + TELES_IOMEM_SIZE);
if (cs->hw.teles0.cfg_reg)
release_region(cs->hw.teles0.cfg_reg, 8);
return (0);
}
cs->hw.teles0.membase = ioremap(cs->hw.teles0.phymem, TELES_IOMEM_SIZE);
printk(KERN_INFO
"HiSax: %s config irq:%d mem:%p cfg:0x%X\n",
CardType[cs->typ], cs->irq,
cs->hw.teles0.membase, cs->hw.teles0.cfg_reg);
if (reset_teles0(cs)) {
printk(KERN_WARNING "Teles0: wrong IRQ\n");
release_io_teles0(cs);
return (0);
}
setup_isac(cs);
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 = &teles0_interrupt;
ISACVersion(cs, "Teles0:");
if (HscxVersion(cs, "Teles0:")) {
printk(KERN_WARNING
"Teles0: wrong HSCX versions check IO/MEM addresses\n");
release_io_teles0(cs);
return (0);
}
return (1);
}
