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/*
* This file contains the hardware specific portions of the TTY driver
* for the serial ports on the erc32.
*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <assert.h>
static void
__outb(int port, unsigned char v)
{
*((volatile unsigned char *)(0x80000000 + port)) = v;
}
static unsigned char
__inb(int port)
{
return *((volatile unsigned char *)(0x80000000 + port));
}
/*
* console_initialize_hardware
*
* This routine initializes the console hardware.
*
*/
void console_initialize_hardware(void)
{
return;
}
/*
* console_outbyte_polled
*
* This routine transmits a character using polling.
*/
void console_outbyte_polled(
int port,
char ch
)
{
__outb(0x3f8 + 0x00, ch);
}
/*
* console_inbyte_nonblocking
*
* This routine polls for a character.
*/
int console_inbyte_nonblocking(
int port
)
{
if ( __inb(0x3f8 + 0x05) & 0x01 )
return __inb(0x3f8 + 0x00);
return -1;
}
#include <rtems/bspIo.h>
void simBSP_output_char(char c) { console_outbyte_polled( 0, c ); }
BSP_output_char_function_type BSP_output_char = simBSP_output_char;
BSP_polling_getchar_function_type BSP_poll_char = NULL;
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