io.h File Reference

#include <stddef.h>
#include <stdint.h>

Include dependency graph for io.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Functions
static uint8_t	inb (uint16_t port)
static void	insb (uint16_t port, void *addr, size_t cnt)
static uint16_t	inw (uint16_t port)
static void	insw (uint16_t port, void *addr, size_t cnt)
static uint32_t	inl (uint16_t port)
static void	insl (uint16_t port, void *addr, size_t cnt)
static void	outb (uint16_t port, uint8_t data)
static void	outsb (uint16_t port, const void *addr, size_t cnt)
static void	outw (uint16_t port, uint16_t data)
static void	outsw (uint16_t port, const void *addr, size_t cnt)
static void	outl (uint16_t port, uint32_t data)
static void	outsl (uint16_t port, const void *addr, size_t cnt)

Function Documentation

inb()

static uint8_t inb ( uint16_t  port )

inlinestatic

                    {
    /* See [IA32-v2a] "IN". */
    uint8_t data;
    asm volatile ("inb %w1,%0" : "=a" (data) : "d" (port));
    return data;
}

Here is the caller graph for this function:

inl()

static uint32_t inl ( uint16_t  port )

inlinestatic

                    {
    /* See [IA32-v2a] "IN". */
    uint32_t data;
    asm volatile ("inl %w1,%0" : "=a" (data) : "d" (port));
    return data;
}

insb()

static void insb ( uint16_t  port, void *  addr, size_t  cnt  )

inlinestatic

                                             {
    /* See [IA32-v2a] "INS". */
    asm volatile ("cld; repne; insb"
            : "=D" (addr), "=c" (cnt)
            : "d" (port), "0" (addr), "1" (cnt)
            : "memory", "cc");
}

insl()

static void insl ( uint16_t  port, void *  addr, size_t  cnt  )

inlinestatic

                                             {
    /* See [IA32-v2a] "INS". */
    asm volatile ("cld; repne; insl"
            : "=D" (addr), "=c" (cnt)
            : "d" (port), "0" (addr), "1" (cnt)
            : "memory", "cc");
}

insw()

static void insw ( uint16_t  port, void *  addr, size_t  cnt  )

inlinestatic

                                             {
    /* See [IA32-v2a] "INS". */
    asm volatile ("cld; repne; insw"
            : "=D" (addr), "=c" (cnt)
            : "d" (port), "0" (addr), "1" (cnt)
            : "memory", "cc");
}

Here is the caller graph for this function:

inw()

static uint16_t inw ( uint16_t  port )

inlinestatic

                    {
    uint16_t data;
    /* See [IA32-v2a] "IN". */
    asm volatile ("inw %w1,%0" : "=a" (data) : "d" (port));
    return data;
}

outb()

static void outb ( uint16_t  port, uint8_t  data  )

inlinestatic

                                   {
    /* See [IA32-v2b] "OUT". */
    asm volatile ("outb %0,%w1" : : "a" (data), "d" (port));
}

Here is the caller graph for this function:

outl()

static void outl ( uint16_t  port, uint32_t  data  )

inlinestatic

                                    {
    /* See [IA32-v2b] "OUT". */
    asm volatile ("outl %0,%w1" : : "a" (data), "d" (port));
}

outsb()

static void outsb ( uint16_t  port, const void *  addr, size_t  cnt  )

inlinestatic

                                                    {
    /* See [IA32-v2b] "OUTS". */
    asm volatile ("cld; repne; outsb"
            : "=S" (addr), "=c" (cnt)
            : "d" (port), "0" (addr), "1" (cnt)
            : "cc");
}

outsl()

static void outsl ( uint16_t  port, const void *  addr, size_t  cnt  )

inlinestatic

                                                    {
    /* See [IA32-v2b] "OUTS". */
    asm volatile ("cld; repne; outsl"
            : "=S" (addr), "=c" (cnt)
            : "d" (port), "0" (addr), "1" (cnt)
            : "cc");
}

outsw()

static void outsw ( uint16_t  port, const void *  addr, size_t  cnt  )

inlinestatic

                                                    {
    /* See [IA32-v2b] "OUTS". */
    asm volatile ("cld; repne; outsw"
            : "=S" (addr), "=c" (cnt)
            : "d" (port), "0" (addr), "1" (cnt)
            : "cc");
}

Here is the caller graph for this function:

outw()

static void outw ( uint16_t  port, uint16_t  data  )

inlinestatic

                                    {
    /* See [IA32-v2b] "OUT". */
    asm volatile ("outw %0,%w1" : : "a" (data), "d" (port));
}

Here is the caller graph for this function: