| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef W83977AF_H |
| 2 | #define W83977AF_H |
| 3 | |
| 4 | #define W977_EFIO_BASE 0x370 |
| 5 | #define W977_EFIO2_BASE 0x3f0 |
| 6 | #define W977_DEVICE_IR 0x06 |
| 7 | |
| 8 | |
| 9 | /* |
| 10 | * Enter extended function mode |
| 11 | */ |
| 12 | static inline void w977_efm_enter(unsigned int efio) |
| 13 | { |
| 14 | outb(0x87, efio); |
| 15 | outb(0x87, efio); |
| 16 | } |
| 17 | |
| 18 | /* |
| 19 | * Select a device to configure |
| 20 | */ |
| 21 | |
| 22 | static inline void w977_select_device(__u8 devnum, unsigned int efio) |
| 23 | { |
| 24 | outb(0x07, efio); |
| 25 | outb(devnum, efio+1); |
| 26 | } |
| 27 | |
| 28 | /* |
| 29 | * Write a byte to a register |
| 30 | */ |
| 31 | static inline void w977_write_reg(__u8 reg, __u8 value, unsigned int efio) |
| 32 | { |
| 33 | outb(reg, efio); |
| 34 | outb(value, efio+1); |
| 35 | } |
| 36 | |
| 37 | /* |
| 38 | * read a byte from a register |
| 39 | */ |
| 40 | static inline __u8 w977_read_reg(__u8 reg, unsigned int efio) |
| 41 | { |
| 42 | outb(reg, efio); |
| 43 | return inb(efio+1); |
| 44 | } |
| 45 | |
| 46 | /* |
| 47 | * Exit extended function mode |
| 48 | */ |
| 49 | static inline void w977_efm_exit(unsigned int efio) |
| 50 | { |
| 51 | outb(0xAA, efio); |
| 52 | } |
| 53 | #endif |