*
* 990502 (jmt) - Major rewrite for new interrupt architecture as well as some
* recent insights into OSS operational details.
- * 990610 (jmt) - Now taking fulll advantage of the OSS. Interrupts are mapped
+ * 990610 (jmt) - Now taking full advantage of the OSS. Interrupts are mapped
* to mostly match the A/UX interrupt scheme supported on the
* VIA side. Also added support for enabling the ISM irq again
* since we now have a functional IOP manager.
/* FIXME: how do you clear a pending IRQ? */
if (events & OSS_IP_SOUND) {
- /* FIXME: call sound handler */
oss->irq_pending &= ~OSS_IP_SOUND;
+ /* FIXME: call sound handler */
} else if (events & OSS_IP_SCSI) {
- oss->irq_level[OSS_SCSI] = OSS_IRQLEV_DISABLED;
- m68k_handle_int(IRQ_MAC_SCSI);
oss->irq_pending &= ~OSS_IP_SCSI;
- oss->irq_level[OSS_SCSI] = OSS_IRQLEV_SCSI;
+ m68k_handle_int(IRQ_MAC_SCSI);
} else {
/* FIXME: error check here? */
}
#endif
/* There are only six slots on the OSS, not seven */
- for (i = 0, irq_bit = 1 ; i < 6 ; i++, irq_bit <<= 1) {
+ i = 6;
+ irq_bit = 0x40;
+ do {
+ --i;
+ irq_bit >>= 1;
if (events & irq_bit) {
- oss->irq_level[i] = OSS_IRQLEV_DISABLED;
- m68k_handle_int(NUBUS_SOURCE_BASE + i);
oss->irq_pending &= ~irq_bit;
- oss->irq_level[i] = OSS_IRQLEV_NUBUS;
+ m68k_handle_int(NUBUS_SOURCE_BASE + i);
}
- }
+ } while(events & (irq_bit - 1));
return IRQ_HANDLED;
}