projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * arch/i386/mach-generic/io_ports.h | |
| 3 | * | |
| 4 | * Machine specific IO port address definition for generic. | |
| 5 | * Written by Osamu Tomita <tomita@cinet.co.jp> | |
| 6 | */ | |
| 7 | #ifndef _MACH_IO_PORTS_H | |
| 8 | #define _MACH_IO_PORTS_H | |
| 9 | ||
| 1da177e4 LT |
10 | /* i8259A PIC registers */ |
| 11 | #define PIC_MASTER_CMD 0x20 | |
| 12 | #define PIC_MASTER_IMR 0x21 | |
| 13 | #define PIC_MASTER_ISR PIC_MASTER_CMD | |
| 14 | #define PIC_MASTER_POLL PIC_MASTER_ISR | |
| 15 | #define PIC_MASTER_OCW3 PIC_MASTER_ISR | |
| 16 | #define PIC_SLAVE_CMD 0xa0 | |
| 17 | #define PIC_SLAVE_IMR 0xa1 | |
| 18 | ||
| 19 | /* i8259A PIC related value */ | |
| 20 | #define PIC_CASCADE_IR 2 | |
| 21 | #define MASTER_ICW4_DEFAULT 0x01 | |
| 22 | #define SLAVE_ICW4_DEFAULT 0x01 | |
| 23 | #define PIC_ICW4_AEOI 2 | |
| 24 | ||
| 25 | #endif /* !_MACH_IO_PORTS_H */ |