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- #ifndef W83977AF_H
- #define W83977AF_H
-
- #define W977_EFER 0x370
- #define W977_EFIR 0x370
- #define W977_EFDR 0x371
- #define W977_DEVICE_IR 0x06
-
-
- /*
- * Enter extended function mode
- */
- static inline void w977_efm_enter(void)
- {
- outb(0x87, W977_EFER);
- outb(0x87, W977_EFER);
- }
-
- /*
- * Select a device to configure
- */
-
- static inline void w977_select_device(__u8 devnum)
- {
- outb(0x07, W977_EFIR);
- outb(devnum, W977_EFDR);
- }
-
- /*
- * Write a byte to a register
- */
- static inline void w977_write_reg(__u8 reg, __u8 value)
- {
- outb(reg, W977_EFIR);
- outb(value, W977_EFDR);
- }
-
- /*
- * read a byte from a register
- */
- static inline __u8 w977_read_reg(__u8 reg)
- {
- outb(reg, W977_EFIR);
- return inb(W977_EFDR);
- }
-
- /*
- * Exit extended function mode
- */
- static inline void w977_efm_exit(void)
- {
- outb(0xAA, W977_EFER);
- }
- #endif
-