arch/arm/mach-footbridge/isa-irq.c

121

outb(_ISA_IRQ(0), PIC_MASK_LO); /* IRQ number */

arch/arm/mach-footbridge/isa-irq.c

122

outb(0x04, PIC_MASK_LO); /* Slave on Ch2 */

arch/arm/mach-footbridge/isa-irq.c

123

outb(0x01, PIC_MASK_LO); /* x86 */

arch/arm/mach-footbridge/isa-irq.c

124

outb(0xf5, PIC_MASK_LO); /* pattern: 11110101 */

arch/arm/mach-footbridge/isa-irq.c

135

if (inb(PIC_MASK_LO) == 0xf5 && inb(PIC_MASK_HI) == 0xfa) {

arch/arm/mach-footbridge/isa-irq.c

136

outb(0xff, PIC_MASK_LO);/* mask all IRQs */

arch/arm/mach-footbridge/isa-irq.c

34

outb(inb(PIC_MASK_LO) | mask, PIC_MASK_LO);

arch/arm/mach-footbridge/isa-irq.c

41

outb(inb(PIC_MASK_LO) | mask, PIC_MASK_LO);

arch/arm/mach-footbridge/isa-irq.c

49

outb(inb(PIC_MASK_LO) & ~mask, PIC_MASK_LO);