X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=src%2Fpic.c;h=8992a8b576f79292a469cb63b6bea8b96058ffd5;hb=refs%2Fheads%2Fcoreboot;hp=7ffdcb4dbe5fc0ac8c3d467972c6ca97817833f7;hpb=ffdc9ee829db20d6aa6f7f1c6aa8eaafd69ac14c;p=seabios.git diff --git a/src/pic.c b/src/pic.c index 7ffdcb4..8992a8b 100644 --- a/src/pic.c +++ b/src/pic.c @@ -3,22 +3,21 @@ // Copyright (C) 2008 Kevin O'Connor // Copyright (C) 2002 MandrakeSoft S.A. // -// This file may be distributed under the terms of the GNU GPLv3 license. +// This file may be distributed under the terms of the GNU LGPLv3 license. #include "pic.h" // get_pic1_isr #include "util.h" // dprintf #include "config.h" // CONFIG_* void -pic_setup() +set_pics(u8 irq0, u8 irq8) { - dprintf(3, "init pic\n"); // Send ICW1 (select OCW1 + will send ICW4) outb(0x11, PORT_PIC1_CMD); outb(0x11, PORT_PIC2_CMD); // Send ICW2 (base irqs: 0x08-0x0f for irq0-7, 0x70-0x77 for irq8-15) - outb(0x08, PORT_PIC1_DATA); - outb(0x70, PORT_PIC2_DATA); + outb(irq0, PORT_PIC1_DATA); + outb(irq8, PORT_PIC2_DATA); // Send ICW3 (cascaded pic ids) outb(0x04, PORT_PIC1_DATA); outb(0x02, PORT_PIC2_DATA); @@ -30,24 +29,24 @@ pic_setup() outb(~0, PORT_PIC2_DATA); } +void +pic_setup(void) +{ + dprintf(3, "init pic\n"); + set_pics(0x08, 0x70); +} + // Handler for otherwise unused hardware irqs. void VISIBLE16 handle_hwpic1(struct bregs *regs) { - u8 isr = get_pic1_isr(); - dprintf(DEBUG_ISR_hwpic1, "Got noisy pic1 irq %x\n", isr); - isr &= ~PIC1_IRQ2; // don't ever mask the cascaded irq - if (isr) - mask_pic1(isr); + dprintf(DEBUG_ISR_hwpic1, "handle_hwpic1 irq=%x\n", get_pic1_isr()); eoi_pic1(); } void VISIBLE16 handle_hwpic2(struct bregs *regs) { - u8 isr = get_pic2_isr(); - dprintf(DEBUG_ISR_hwpic2, "Got noisy pic2 irq %x\n", isr); - if (isr) - mask_pic2(isr); + dprintf(DEBUG_ISR_hwpic2, "handle_hwpic2 irq=%x\n", get_pic2_isr()); eoi_pic2(); }