alphapc/i8259.c (diff list | history)

1999/0415/sys/src/9/alphapc/i8259.c:35,40 – 2000/0401/sys/src/9/alphapc/i8259.c:35,42 (short | long)
1999/0415		{ int /*elcr1, */ x;
2000/0401		ioalloc(Int0ctl, 2, 0, "i8259.0"); ioalloc(Int1ctl, 2, 0, "i8259.1");
1999/0415		int0mask = 0xFF; int1mask = 0xFF;
1999/0415/sys/src/9/alphapc/i8259.c:121,133 – 2000/0401/sys/src/9/alphapc/i8259.c:123,134
1999/0415		} int i8259enable(int v, int, Irqctl* irqctl)
2000/0401		i8259enable(int v, int, Vctl* vctl)
1999/0415		{ if(v < VectorPIC || v > MaxVectorPIC){ iprint("i8259enable: vector %d out of range\n", v);
2000/0401		if(v > MaxIrqPIC){ print("i8259enable: vector %d out of range\n", v);
1999/0415		return -1; } v -= VectorPIC; /* * enable corresponding interrupt in 8259
1999/0415/sys/src/9/alphapc/i8259.c:142,151 – 2000/0401/sys/src/9/alphapc/i8259.c:143,152
1999/0415		} if(elcr & (1<<v)) irqctl->eoi = i8259isr;
2000/0401		vctl->eoi = i8259isr;
1999/0415		else irqctl->isr = i8259isr; irqctl->isintr = 1;
2000/0401		vctl->isr = i8259isr; vctl->isintr = 1;
1999/0415		return v; }