minix/drivers/dpeth/devio.c

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/*
** File: devio.c Jun. 11, 2005
**
** Author: Giovanni Falzoni <gfalzoni@inwind.it>
**
** This file contains the routines for readind/writing
** from/to the device registers.
**
** $Log$
** Revision 1.1 2005/06/29 10:16:46 beng
** Import of dpeth 3c501/3c509b/.. ethernet driver by
** Giovanni Falzoni <fgalzoni@inwind.it>.
**
** Revision 2.0 2005/06/26 16:16:46 lsodgf0
** Initial revision for Minix 3.0.6
**
** $Id$
*/
#include "drivers.h"
#include <net/gen/ether.h>
#include <net/gen/eth_io.h>
#include "dp.h"
#if ENABLE_NETWORKING == 1
#if USE_IOPL == 0
static void warning(const char *type, int err)
{
printf("Warning: eth#0 sys_%s failed (%d)\n", type, err);
return;
}
/*
** Name: unsigned int inb(unsigned short int port);
** Function: Reads a byte from specified i/o port.
*/
PUBLIC unsigned int inb(unsigned short port)
{
unsigned int value;
int rc;
if ((rc = sys_inb(port, &value)) != OK) warning("inb", rc);
return value;
}
/*
** Name: unsigned int inw(unsigned short int port);
** Function: Reads a word from specified i/o port.
*/
PUBLIC unsigned int inw(unsigned short port)
{
unsigned int value;
int rc;
if ((rc = sys_inw(port, &value)) != OK) warning("inw", rc);
return value;
}
/*
** Name: unsigned int insb(unsigned short int port, int proc_nr, void *buffer, int count);
** Function: Reads a sequence of bytes from specified i/o port to user space buffer.
*/
PUBLIC void insb(unsigned short int port, int proc_nr, void *buffer, int count)
{
int rc;
if ((rc = sys_insb(port, proc_nr, buffer, count)) != OK)
warning("insb", rc);
return;
}
/*
** Name: unsigned int insw(unsigned short int port, int proc_nr, void *buffer, int count);
** Function: Reads a sequence of words from specified i/o port to user space buffer.
*/
PUBLIC void insw(unsigned short int port, int proc_nr, void *buffer, int count)
{
int rc;
if ((rc = sys_insw(port, proc_nr, buffer, count)) != OK)
warning("insw", rc);
return;
}
/*
** Name: void outb(unsigned short int port, unsigned long value);
** Function: Writes a byte to specified i/o port.
*/
PUBLIC void outb(unsigned short port, unsigned long value)
{
int rc;
if ((rc = sys_outb(port, value)) != OK) warning("outb", rc);
return;
}
/*
** Name: void outw(unsigned short int port, unsigned long value);
** Function: Writes a word to specified i/o port.
*/
PUBLIC void outw(unsigned short port, unsigned long value)
{
int rc;
if ((rc = sys_outw(port, value)) != OK) warning("outw", rc);
return;
}
/*
** Name: void outsb(unsigned short int port, int proc_nr, void *buffer, int count);
** Function: Writes a sequence of bytes from user space to specified i/o port.
*/
PUBLIC void outsb(unsigned short port, int proc_nr, void *buffer, int count)
{
int rc;
if ((rc = sys_outsb(port, proc_nr, buffer, count)) != OK)
warning("outsb", rc);
return;
}
/*
** Name: void outsw(unsigned short int port, int proc_nr, void *buffer, int count);
** Function: Writes a sequence of bytes from user space to specified i/o port.
*/
PUBLIC void outsw(unsigned short port, int proc_nr, void *buffer, int count)
{
int rc;
if ((rc = sys_outsw(port, proc_nr, buffer, count)) != OK)
warning("outsw", rc);
return;
}
#else
#error To be implemented
#endif /* USE_IOPL */
#endif /* ENABLE_NETWORKING */
/** devio.c **/