diff options
Diffstat (limited to 'arch/x86/lib/pcat_interrupts.c')
| -rw-r--r-- | arch/x86/lib/pcat_interrupts.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/arch/x86/lib/pcat_interrupts.c b/arch/x86/lib/pcat_interrupts.c index 9780f46270..b9d06140d4 100644 --- a/arch/x86/lib/pcat_interrupts.c +++ b/arch/x86/lib/pcat_interrupts.c @@ -28,10 +28,11 @@ int i8259_init(void) outb(0xff, MASTER_PIC + IMR); outb(0xff, SLAVE_PIC + IMR); - /* Master PIC */ - /* Place master PIC interrupts at INT20 */ - /* ICW3, One slave PIC is present */ - outb(ICW1_SEL|ICW1_EICW4, MASTER_PIC + ICW1); + /* + * Master PIC + * Place master PIC interrupts at INT20 + */ + outb(ICW1_SEL | ICW1_EICW4, MASTER_PIC + ICW1); outb(0x20, MASTER_PIC + ICW2); outb(IR2, MASTER_PIC + ICW3); outb(ICW4_PM, MASTER_PIC + ICW4); @@ -39,10 +40,11 @@ int i8259_init(void) for (i = 0; i < 8; i++) outb(OCW2_SEOI | i, MASTER_PIC + OCW2); - /* Slave PIC */ - /* Place slave PIC interrupts at INT28 */ - /* Slave ID */ - outb(ICW1_SEL|ICW1_EICW4, SLAVE_PIC + ICW1); + /* + * Slave PIC + * Place slave PIC interrupts at INT28 + */ + outb(ICW1_SEL | ICW1_EICW4, SLAVE_PIC + ICW1); outb(0x28, SLAVE_PIC + ICW2); outb(0x02, SLAVE_PIC + ICW3); outb(ICW4_PM, SLAVE_PIC + ICW4); @@ -110,9 +112,6 @@ void specific_eoi(int irq) outb(OCW2_SEOI | irq, MASTER_PIC + OCW2); } -#define ELCR1 0x4d0 -#define ELCR2 0x4d1 - void configure_irq_trigger(int int_num, bool is_level_triggered) { u16 int_bits = inb(ELCR1) | (((u16)inb(ELCR2)) << 8); |
