diff options
Diffstat (limited to 'src/kernel/arch/i386/port_io.h')
| -rw-r--r-- | src/kernel/arch/i386/port_io.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/kernel/arch/i386/port_io.h b/src/kernel/arch/i386/port_io.h index a4d640f..eac9331 100644 --- a/src/kernel/arch/i386/port_io.h +++ b/src/kernel/arch/i386/port_io.h @@ -1,12 +1,22 @@ #include <stdint.h> -static inline void port_outb(uint16_t port, uint8_t val) { +static inline void port_out8(uint16_t port, uint8_t val) { asm volatile("outb %0, %1" : : "a" (val), "Nd" (port)); } -static inline uint8_t port_inb(uint16_t port) { +static inline void port_out16(uint16_t port, uint16_t val) { + asm volatile("outw %0, %1" : : "a" (val), "Nd" (port)); +} + +static inline uint8_t port_in8(uint16_t port) { uint8_t val; asm volatile("inb %1, %0" : "=a" (val) : "Nd" (port)); return val; } +static inline uint16_t port_in16(uint16_t port) { + uint16_t val; + asm volatile("inw %1, %0" : "=a" (val) : "Nd" (port)); + return val; +} + |