diff options
Diffstat (limited to 'include/asm-x86/i8259.h')
-rw-r--r-- | include/asm-x86/i8259.h | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/include/asm-x86/i8259.h b/include/asm-x86/i8259.h deleted file mode 100644 index 23c1b3baaecd..000000000000 --- a/include/asm-x86/i8259.h +++ /dev/null @@ -1,63 +0,0 @@ -#ifndef ASM_X86__I8259_H -#define ASM_X86__I8259_H - -#include <linux/delay.h> - -extern unsigned int cached_irq_mask; - -#define __byte(x, y) (((unsigned char *)&(y))[x]) -#define cached_master_mask (__byte(0, cached_irq_mask)) -#define cached_slave_mask (__byte(1, cached_irq_mask)) - -/* i8259A PIC registers */ -#define PIC_MASTER_CMD 0x20 -#define PIC_MASTER_IMR 0x21 -#define PIC_MASTER_ISR PIC_MASTER_CMD -#define PIC_MASTER_POLL PIC_MASTER_ISR -#define PIC_MASTER_OCW3 PIC_MASTER_ISR -#define PIC_SLAVE_CMD 0xa0 -#define PIC_SLAVE_IMR 0xa1 - -/* i8259A PIC related value */ -#define PIC_CASCADE_IR 2 -#define MASTER_ICW4_DEFAULT 0x01 -#define SLAVE_ICW4_DEFAULT 0x01 -#define PIC_ICW4_AEOI 2 - -extern spinlock_t i8259A_lock; - -extern void init_8259A(int auto_eoi); -extern void enable_8259A_irq(unsigned int irq); -extern void disable_8259A_irq(unsigned int irq); -extern unsigned int startup_8259A_irq(unsigned int irq); - -/* the PIC may need a careful delay on some platforms, hence specific calls */ -static inline unsigned char inb_pic(unsigned int port) -{ - unsigned char value = inb(port); - - /* - * delay for some accesses to PIC on motherboard or in chipset - * must be at least one microsecond, so be safe here: - */ - udelay(2); - - return value; -} - -static inline void outb_pic(unsigned char value, unsigned int port) -{ - outb(value, port); - /* - * delay for some accesses to PIC on motherboard or in chipset - * must be at least one microsecond, so be safe here: - */ - udelay(2); -} - -extern struct irq_chip i8259A_chip; - -extern void mask_8259A(void); -extern void unmask_8259A(void); - -#endif /* ASM_X86__I8259_H */ |