diff options
Diffstat (limited to 'kernel/cpu/io.h')
| -rw-r--r-- | kernel/cpu/io.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/cpu/io.h b/kernel/cpu/io.h new file mode 100644 index 0000000..38858a4 --- /dev/null +++ b/kernel/cpu/io.h @@ -0,0 +1,15 @@ +#include <stdint.h> + +extern void outsw(uint16_t, uint32_t); +extern void outb(uint16_t, uint8_t); +extern void outw(uint16_t, uint16_t); +extern void outl(uint16_t, uint32_t); + +extern uint32_t inl(uint16_t); +extern uint16_t inw(uint16_t); +extern uint16_t inb(uint16_t); + +extern void rep_outsw(uint16_t count, uint16_t port, volatile void *addy); +__attribute__((no_caller_saved_registers)) extern void +rep_insw(uint16_t count, uint16_t port, volatile void *addy); +extern void jump_usermode(void (*address)(), uint32_t stack_pointer); |