diff options
Diffstat (limited to 'drivers/isdn/hisax/teles0.c')
| -rw-r--r-- | drivers/isdn/hisax/teles0.c | 44 |
1 files changed, 19 insertions, 25 deletions
diff --git a/drivers/isdn/hisax/teles0.c b/drivers/isdn/hisax/teles0.c index c562de877..4046c4357 100644 --- a/drivers/isdn/hisax/teles0.c +++ b/drivers/isdn/hisax/teles0.c @@ -1,4 +1,4 @@ -/* $Id: teles0.c,v 2.8 1998/04/15 16:44:28 keil Exp $ +/* $Id: teles0.c,v 2.9 1999/07/12 21:05:31 keil Exp $ * teles0.c low level stuff for Teles Memory IO isdn cards * based on the teles driver from Jan den Ouden @@ -10,6 +10,10 @@ * Beat Doebeli * * $Log: teles0.c,v $ + * Revision 2.9 1999/07/12 21:05:31 keil + * fix race in IRQ handling + * added watchdog for lost IRQs + * * Revision 2.8 1998/04/15 16:44:28 keil * new init code * @@ -54,7 +58,7 @@ extern const char *CardType[]; -const char *teles0_revision = "$Revision: 2.8 $"; +const char *teles0_revision = "$Revision: 2.9 $"; #define byteout(addr,val) outb(val,addr) #define bytein(addr) inb(addr) @@ -177,7 +181,7 @@ static void teles0_interrupt(int intno, void *dev_id, struct pt_regs *regs) { struct IsdnCardState *cs = dev_id; - u_char val, stat = 0; + u_char val; int count = 0; if (!cs) { @@ -186,39 +190,31 @@ teles0_interrupt(int intno, void *dev_id, struct pt_regs *regs) } val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA); Start_HSCX: - if (val) { + if (val) hscx_int_main(cs, val); - stat |= 1; - } val = readisac(cs->hw.teles0.membase, ISAC_ISTA); Start_ISAC: - if (val) { + if (val) isac_interrupt(cs, val); - stat |= 2; - } count++; val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA); - if (val && count < 20) { + 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 < 20) { + if (val && count < 5) { if (cs->debug & L1_DEB_ISAC) debugl1(cs, "ISAC IntStat after IntRoutine"); goto Start_ISAC; } - if (stat & 1) { - writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0xFF); - writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0xFF); - writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0x0); - writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0x0); - } - if (stat & 2) { - writeisac(cs->hw.teles0.membase, ISAC_MASK, 0xFF); - writeisac(cs->hw.teles0.membase, ISAC_MASK, 0x0); - } + 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); } void @@ -290,9 +286,6 @@ Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg) case CARD_RELEASE: release_io_teles0(cs); return(0); - case CARD_SETIRQ: - return(request_irq(cs->irq, &teles0_interrupt, - I4L_IRQ_FLAG, "HiSax", cs)); case CARD_INIT: inithscxisac(cs, 3); return(0); @@ -302,7 +295,7 @@ Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg) return(0); } -int __init +int __init setup_teles0(struct IsdnCard *card) { u_char val; @@ -382,6 +375,7 @@ setup_teles0(struct IsdnCard *card) 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 |