298 lines
7.3 KiB
C
Executable File
298 lines
7.3 KiB
C
Executable File
/* $Id: saphir.c,v 1.10.2.4 2004/01/13 23:48:39 keil Exp $
|
|
*
|
|
* low level stuff for HST Saphir 1
|
|
*
|
|
* 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 HST High Soft Tech GmbH
|
|
*
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include "hisax.h"
|
|
#include "isac.h"
|
|
#include "hscx.h"
|
|
#include "isdnl1.h"
|
|
|
|
static char *saphir_rev = "$Revision: 1.10.2.4 $";
|
|
|
|
#define byteout(addr, val) outb(val, addr)
|
|
#define bytein(addr) inb(addr)
|
|
|
|
#define ISAC_DATA 0
|
|
#define HSCX_DATA 1
|
|
#define ADDRESS_REG 2
|
|
#define IRQ_REG 3
|
|
#define SPARE_REG 4
|
|
#define RESET_REG 5
|
|
|
|
static inline u_char
|
|
readreg(unsigned int ale, unsigned int adr, u_char off)
|
|
{
|
|
register u_char ret;
|
|
|
|
byteout(ale, off);
|
|
ret = bytein(adr);
|
|
return (ret);
|
|
}
|
|
|
|
static inline void
|
|
readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
|
|
{
|
|
byteout(ale, off);
|
|
insb(adr, data, size);
|
|
}
|
|
|
|
|
|
static inline void
|
|
writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
|
|
{
|
|
byteout(ale, off);
|
|
byteout(adr, data);
|
|
}
|
|
|
|
static inline void
|
|
writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
|
|
{
|
|
byteout(ale, off);
|
|
outsb(adr, data, size);
|
|
}
|
|
|
|
/* Interface functions */
|
|
|
|
static u_char
|
|
ReadISAC(struct IsdnCardState *cs, u_char offset)
|
|
{
|
|
return (readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset));
|
|
}
|
|
|
|
static void
|
|
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
|
|
{
|
|
writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset, value);
|
|
}
|
|
|
|
static void
|
|
ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
|
|
{
|
|
readfifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
|
|
}
|
|
|
|
static void
|
|
WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
|
|
{
|
|
writefifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
|
|
}
|
|
|
|
static u_char
|
|
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
|
|
{
|
|
return (readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
|
|
offset + (hscx ? 0x40 : 0)));
|
|
}
|
|
|
|
static void
|
|
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
|
|
{
|
|
writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
|
|
offset + (hscx ? 0x40 : 0), value);
|
|
}
|
|
|
|
#define READHSCX(cs, nr, reg) readreg(cs->hw.saphir.ale, \
|
|
cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0))
|
|
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.saphir.ale, \
|
|
cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0), data)
|
|
|
|
#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.saphir.ale, \
|
|
cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)
|
|
|
|
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.saphir.ale, \
|
|
cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)
|
|
|
|
#include "hscx_irq.c"
|
|
|
|
static irqreturn_t
|
|
saphir_interrupt(int intno, void *dev_id)
|
|
{
|
|
struct IsdnCardState *cs = dev_id;
|
|
u_char val;
|
|
u_long flags;
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40);
|
|
Start_HSCX:
|
|
if (val)
|
|
hscx_int_main(cs, val);
|
|
val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
|
|
Start_ISAC:
|
|
if (val)
|
|
isac_interrupt(cs, val);
|
|
val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40);
|
|
if (val) {
|
|
if (cs->debug & L1_DEB_HSCX)
|
|
debugl1(cs, "HSCX IntStat after IntRoutine");
|
|
goto Start_HSCX;
|
|
}
|
|
val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
|
|
if (val) {
|
|
if (cs->debug & L1_DEB_ISAC)
|
|
debugl1(cs, "ISAC IntStat after IntRoutine");
|
|
goto Start_ISAC;
|
|
}
|
|
/* Watchdog */
|
|
if (cs->hw.saphir.timer.function)
|
|
mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ);
|
|
else
|
|
printk(KERN_WARNING "saphir: Spurious timer!\n");
|
|
writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0xFF);
|
|
writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0xFF);
|
|
writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0xFF);
|
|
writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0);
|
|
writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0);
|
|
writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void
|
|
SaphirWatchDog(struct IsdnCardState *cs)
|
|
{
|
|
u_long flags;
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
/* 5 sec WatchDog, so read at least every 4 sec */
|
|
cs->readisac(cs, ISAC_RBCH);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ);
|
|
}
|
|
|
|
static void
|
|
release_io_saphir(struct IsdnCardState *cs)
|
|
{
|
|
byteout(cs->hw.saphir.cfg_reg + IRQ_REG, 0xff);
|
|
del_timer(&cs->hw.saphir.timer);
|
|
cs->hw.saphir.timer.function = NULL;
|
|
if (cs->hw.saphir.cfg_reg)
|
|
release_region(cs->hw.saphir.cfg_reg, 6);
|
|
}
|
|
|
|
static int
|
|
saphir_reset(struct IsdnCardState *cs)
|
|
{
|
|
u_char irq_val;
|
|
|
|
switch (cs->irq) {
|
|
case 5: irq_val = 0;
|
|
break;
|
|
case 3: irq_val = 1;
|
|
break;
|
|
case 11:
|
|
irq_val = 2;
|
|
break;
|
|
case 12:
|
|
irq_val = 3;
|
|
break;
|
|
case 15:
|
|
irq_val = 4;
|
|
break;
|
|
default:
|
|
printk(KERN_WARNING "HiSax: saphir wrong IRQ %d\n",
|
|
cs->irq);
|
|
return (1);
|
|
}
|
|
byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
|
|
byteout(cs->hw.saphir.cfg_reg + RESET_REG, 1);
|
|
mdelay(10);
|
|
byteout(cs->hw.saphir.cfg_reg + RESET_REG, 0);
|
|
mdelay(10);
|
|
byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
|
|
byteout(cs->hw.saphir.cfg_reg + SPARE_REG, 0x02);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
saphir_card_msg(struct IsdnCardState *cs, int mt, void *arg)
|
|
{
|
|
u_long flags;
|
|
|
|
switch (mt) {
|
|
case CARD_RESET:
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
saphir_reset(cs);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return (0);
|
|
case CARD_RELEASE:
|
|
release_io_saphir(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 setup_saphir(struct IsdnCard *card)
|
|
{
|
|
struct IsdnCardState *cs = card->cs;
|
|
char tmp[64];
|
|
|
|
strcpy(tmp, saphir_rev);
|
|
printk(KERN_INFO "HiSax: HST Saphir driver Rev. %s\n", HiSax_getrev(tmp));
|
|
if (cs->typ != ISDN_CTYPE_HSTSAPHIR)
|
|
return (0);
|
|
|
|
/* IO-Ports */
|
|
cs->hw.saphir.cfg_reg = card->para[1];
|
|
cs->hw.saphir.isac = card->para[1] + ISAC_DATA;
|
|
cs->hw.saphir.hscx = card->para[1] + HSCX_DATA;
|
|
cs->hw.saphir.ale = card->para[1] + ADDRESS_REG;
|
|
cs->irq = card->para[0];
|
|
if (!request_region(cs->hw.saphir.cfg_reg, 6, "saphir")) {
|
|
printk(KERN_WARNING
|
|
"HiSax: HST Saphir config port %x-%x already in use\n",
|
|
cs->hw.saphir.cfg_reg,
|
|
cs->hw.saphir.cfg_reg + 5);
|
|
return (0);
|
|
}
|
|
|
|
printk(KERN_INFO "HiSax: HST Saphir config irq:%d io:0x%X\n",
|
|
cs->irq, cs->hw.saphir.cfg_reg);
|
|
|
|
setup_isac(cs);
|
|
cs->hw.saphir.timer.function = (void *) SaphirWatchDog;
|
|
cs->hw.saphir.timer.data = (long) cs;
|
|
init_timer(&cs->hw.saphir.timer);
|
|
cs->hw.saphir.timer.expires = jiffies + 4 * HZ;
|
|
add_timer(&cs->hw.saphir.timer);
|
|
if (saphir_reset(cs)) {
|
|
release_io_saphir(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 = &saphir_card_msg;
|
|
cs->irq_func = &saphir_interrupt;
|
|
ISACVersion(cs, "saphir:");
|
|
if (HscxVersion(cs, "saphir:")) {
|
|
printk(KERN_WARNING
|
|
"saphir: wrong HSCX versions check IO address\n");
|
|
release_io_saphir(cs);
|
|
return (0);
|
|
}
|
|
return (1);
|
|
}
|