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/*
** File: devio.c Jun. 11, 2005
**
** Author: Giovanni Falzoni <gfalzoni@inwind.it>
**
** This file contains the routines for reading/writing
** from/to the device registers.
*/
#include <minix/drivers.h>
#include <minix/netdriver.h>
#include "dp.h"
#if (USE_IOPL == 0)
static void warning(const char *type, int err)
{
printf("Warning: eth#0 sys_%s failed (%d)\n", type, err);
}
/*
** Name: inb
** Function: Reads a byte from specified i/o port.
*/
unsigned int inb(unsigned short port)
{
u32_t value;
int rc;
if ((rc = sys_inb(port, &value)) != OK) warning("inb", rc);
return value;
}
/*
** Name: inw
** Function: Reads a word from specified i/o port.
*/
unsigned int inw(unsigned short port)
{
u32_t value;
int rc;
if ((rc = sys_inw(port, &value)) != OK) warning("inw", rc);
return value;
}
/*
** Name: insb
** Function: Reads a sequence of bytes from an i/o port.
*/
void insb(unsigned short int port, void *buffer, int count)
{
int rc;
if ((rc = sys_insb(port, SELF, buffer, count)) != OK)
warning("insb", rc);
}
/*
** Name: insw
** Function: Reads a sequence of words from an i/o port.
*/
void insw(unsigned short int port, void *buffer, int count)
{
int rc;
if ((rc = sys_insw(port, SELF, buffer, count)) != OK)
warning("insw", rc);
}
/*
** Name: outb
** Function: Writes a byte to specified i/o port.
*/
void outb(unsigned short port, unsigned long value)
{
int rc;
if ((rc = sys_outb(port, value)) != OK) warning("outb", rc);
}
/*
** Name: outw
** Function: Writes a word to specified i/o port.
*/
void outw(unsigned short port, unsigned long value)
{
int rc;
if ((rc = sys_outw(port, value)) != OK) warning("outw", rc);
}
/*
** Name: outsb
** Function: Writes a sequence of bytes to an i/o port.
*/
void outsb(unsigned short port, void *buffer, int count)
{
int rc;
if ((rc = sys_outsb(port, SELF, buffer, count)) != OK)
warning("outsb", rc);
}
#else
#error To be implemented
#endif /* USE_IOPL */
/** devio.c **/
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