You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
266 lines
7.0 KiB
266 lines
7.0 KiB
/* $Id: s0box.c,v 2.6.2.4 2004/01/13 23:48:39 keil Exp $
|
|
*
|
|
* low level stuff for Creatix S0BOX
|
|
*
|
|
* Author Enrik Berkhan
|
|
* Copyright by Enrik Berkhan <enrik@starfleet.inka.de>
|
|
*
|
|
* This software may be used and distributed according to the terms
|
|
* of the GNU General Public License, incorporated herein by reference.
|
|
*
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include "hisax.h"
|
|
#include "isac.h"
|
|
#include "hscx.h"
|
|
#include "isdnl1.h"
|
|
|
|
extern const char *CardType[];
|
|
const char *s0box_revision = "$Revision: 2.6.2.4 $";
|
|
|
|
static inline void
|
|
writereg(unsigned int padr, signed int addr, u_char off, u_char val) {
|
|
outb_p(0x1c,padr+2);
|
|
outb_p(0x14,padr+2);
|
|
outb_p((addr+off)&0x7f,padr);
|
|
outb_p(0x16,padr+2);
|
|
outb_p(val,padr);
|
|
outb_p(0x17,padr+2);
|
|
outb_p(0x14,padr+2);
|
|
outb_p(0x1c,padr+2);
|
|
}
|
|
|
|
static u_char nibtab[] = { 1, 9, 5, 0xd, 3, 0xb, 7, 0xf,
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 8, 4, 0xc, 2, 0xa, 6, 0xe } ;
|
|
|
|
static inline u_char
|
|
readreg(unsigned int padr, signed int addr, u_char off) {
|
|
register u_char n1, n2;
|
|
|
|
outb_p(0x1c,padr+2);
|
|
outb_p(0x14,padr+2);
|
|
outb_p((addr+off)|0x80,padr);
|
|
outb_p(0x16,padr+2);
|
|
outb_p(0x17,padr+2);
|
|
n1 = (inb_p(padr+1) >> 3) & 0x17;
|
|
outb_p(0x16,padr+2);
|
|
n2 = (inb_p(padr+1) >> 3) & 0x17;
|
|
outb_p(0x14,padr+2);
|
|
outb_p(0x1c,padr+2);
|
|
return nibtab[n1] | (nibtab[n2] << 4);
|
|
}
|
|
|
|
static inline void
|
|
read_fifo(unsigned int padr, signed int adr, u_char * data, int size)
|
|
{
|
|
int i;
|
|
register u_char n1, n2;
|
|
|
|
outb_p(0x1c, padr+2);
|
|
outb_p(0x14, padr+2);
|
|
outb_p(adr|0x80, padr);
|
|
outb_p(0x16, padr+2);
|
|
for (i=0; i<size; i++) {
|
|
outb_p(0x17, padr+2);
|
|
n1 = (inb_p(padr+1) >> 3) & 0x17;
|
|
outb_p(0x16,padr+2);
|
|
n2 = (inb_p(padr+1) >> 3) & 0x17;
|
|
*(data++)=nibtab[n1] | (nibtab[n2] << 4);
|
|
}
|
|
outb_p(0x14,padr+2);
|
|
outb_p(0x1c,padr+2);
|
|
return;
|
|
}
|
|
|
|
static inline void
|
|
write_fifo(unsigned int padr, signed int adr, u_char * data, int size)
|
|
{
|
|
int i;
|
|
outb_p(0x1c, padr+2);
|
|
outb_p(0x14, padr+2);
|
|
outb_p(adr&0x7f, padr);
|
|
for (i=0; i<size; i++) {
|
|
outb_p(0x16, padr+2);
|
|
outb_p(*(data++), padr);
|
|
outb_p(0x17, padr+2);
|
|
}
|
|
outb_p(0x14,padr+2);
|
|
outb_p(0x1c,padr+2);
|
|
return;
|
|
}
|
|
|
|
/* Interface functions */
|
|
|
|
static u_char
|
|
ReadISAC(struct IsdnCardState *cs, u_char offset)
|
|
{
|
|
return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset));
|
|
}
|
|
|
|
static void
|
|
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
|
|
{
|
|
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset, value);
|
|
}
|
|
|
|
static void
|
|
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
|
|
{
|
|
read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size);
|
|
}
|
|
|
|
static void
|
|
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
|
|
{
|
|
write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size);
|
|
}
|
|
|
|
static u_char
|
|
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
|
|
{
|
|
return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset));
|
|
}
|
|
|
|
static void
|
|
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
|
|
{
|
|
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset, value);
|
|
}
|
|
|
|
/*
|
|
* fast interrupt HSCX stuff goes here
|
|
*/
|
|
|
|
#define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg)
|
|
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg, data)
|
|
#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt)
|
|
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt)
|
|
|
|
#include "hscx_irq.c"
|
|
|
|
static irqreturn_t
|
|
s0box_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.cfg_reg, cs->hw.teles3.hscx[1], HSCX_ISTA);
|
|
Start_HSCX:
|
|
if (val)
|
|
hscx_int_main(cs, val);
|
|
val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_ISTA);
|
|
Start_ISAC:
|
|
if (val)
|
|
isac_interrupt(cs, val);
|
|
count++;
|
|
val = readreg(cs->hw.teles3.cfg_reg, 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.cfg_reg, 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 "S0Box: more than %d loops in s0box_interrupt\n", count);
|
|
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
|
|
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
|
|
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0xFF);
|
|
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0x0);
|
|
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
|
|
writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
void
|
|
release_io_s0box(struct IsdnCardState *cs)
|
|
{
|
|
release_region(cs->hw.teles3.cfg_reg, 8);
|
|
}
|
|
|
|
static int
|
|
S0Box_card_msg(struct IsdnCardState *cs, int mt, void *arg)
|
|
{
|
|
u_long flags;
|
|
|
|
switch (mt) {
|
|
case CARD_RESET:
|
|
break;
|
|
case CARD_RELEASE:
|
|
release_io_s0box(cs);
|
|
break;
|
|
case CARD_INIT:
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
inithscxisac(cs, 3);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
break;
|
|
case CARD_TEST:
|
|
break;
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
int __init
|
|
setup_s0box(struct IsdnCard *card)
|
|
{
|
|
struct IsdnCardState *cs = card->cs;
|
|
char tmp[64];
|
|
|
|
strcpy(tmp, s0box_revision);
|
|
printk(KERN_INFO "HiSax: S0Box IO driver Rev. %s\n", HiSax_getrev(tmp));
|
|
if (cs->typ != ISDN_CTYPE_S0BOX)
|
|
return (0);
|
|
|
|
cs->hw.teles3.cfg_reg = card->para[1];
|
|
cs->hw.teles3.hscx[0] = -0x20;
|
|
cs->hw.teles3.hscx[1] = 0x0;
|
|
cs->hw.teles3.isac = 0x20;
|
|
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;
|
|
cs->irq = card->para[0];
|
|
if (!request_region(cs->hw.teles3.cfg_reg,8, "S0Box parallel I/O")) {
|
|
printk(KERN_WARNING
|
|
"HiSax: %s ports %x-%x already in use\n",
|
|
CardType[cs->typ],
|
|
cs->hw.teles3.cfg_reg,
|
|
cs->hw.teles3.cfg_reg + 7);
|
|
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, cs->hw.teles3.cfg_reg);
|
|
printk(KERN_INFO
|
|
"HiSax: hscx A:0x%x hscx B:0x%x\n",
|
|
cs->hw.teles3.hscx[0], cs->hw.teles3.hscx[1]);
|
|
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 = &S0Box_card_msg;
|
|
cs->irq_func = &s0box_interrupt;
|
|
ISACVersion(cs, "S0Box:");
|
|
if (HscxVersion(cs, "S0Box:")) {
|
|
printk(KERN_WARNING
|
|
"S0Box: wrong HSCX versions check IO address\n");
|
|
release_io_s0box(cs);
|
|
return (0);
|
|
}
|
|
return (1);
|
|
}
|
|
|