diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 1999-10-09 00:00:47 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 1999-10-09 00:00:47 +0000 |
| commit | d6434e1042f3b0a6dfe1b1f615af369486f9b1fa (patch) | |
| tree | e2be02f33984c48ec019c654051d27964e42c441 /drivers/isdn/hisax/avm_a1.c | |
| parent | 609d1e803baf519487233b765eb487f9ec227a18 (diff) | |
Merge with 2.3.19.
Diffstat (limited to 'drivers/isdn/hisax/avm_a1.c')
| -rw-r--r-- | drivers/isdn/hisax/avm_a1.c | 40 |
1 files changed, 17 insertions, 23 deletions
diff --git a/drivers/isdn/hisax/avm_a1.c b/drivers/isdn/hisax/avm_a1.c index e782708fb..f96db3675 100644 --- a/drivers/isdn/hisax/avm_a1.c +++ b/drivers/isdn/hisax/avm_a1.c @@ -1,4 +1,4 @@ -/* $Id: avm_a1.c,v 2.10 1998/11/15 23:54:21 keil Exp $ +/* $Id: avm_a1.c,v 2.11 1999/07/12 21:04:54 keil Exp $ * avm_a1.c low level stuff for AVM A1 (Fritz) isdn cards * @@ -6,6 +6,10 @@ * * * $Log: avm_a1.c,v $ + * Revision 2.11 1999/07/12 21:04:54 keil + * fix race in IRQ handling + * added watchdog for lost IRQs + * * Revision 2.10 1998/11/15 23:54:21 keil * changes from 2.0 * @@ -66,7 +70,7 @@ #include "isdnl1.h" extern const char *CardType[]; -static const char *avm_revision = "$Revision: 2.10 $"; +static const char *avm_revision = "$Revision: 2.11 $"; #define AVM_A1_STAT_ISAC 0x01 #define AVM_A1_STAT_HSCX 0x02 @@ -153,7 +157,7 @@ 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; + u_char val, sval; if (!cs) { printk(KERN_WARNING "AVM A1: Spurious interrupt!\n"); @@ -167,29 +171,21 @@ avm_a1_interrupt(int intno, void *dev_id, struct pt_regs *regs) debugl1(cs, "avm IntStatus %x", sval); if (!(sval & AVM_A1_STAT_HSCX)) { val = readreg(cs->hw.avm.hscx[1], HSCX_ISTA); - if (val) { + 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) { + 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); - } + writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0xFF); + writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0xFF); + writereg(cs->hw.avm.isac, ISAC_MASK, 0xFF); + writereg(cs->hw.avm.isac, ISAC_MASK, 0x0); + writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0x0); + writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0x0); } inline static void @@ -219,9 +215,6 @@ AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg) 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); @@ -234,7 +227,7 @@ AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg) return(0); } -int __init +int __init setup_avm_a1(struct IsdnCard *card) { u_char val; @@ -378,6 +371,7 @@ setup_avm_a1(struct IsdnCard *card) cs->BC_Write_Reg = &WriteHSCX; cs->BC_Send_Data = &hscx_fill_fifo; cs->cardmsg = &AVM_card_msg; + cs->irq_func = &avm_a1_interrupt; ISACVersion(cs, "AVM A1:"); if (HscxVersion(cs, "AVM A1:")) { printk(KERN_WARNING |