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|
/*
* console.c : ARM GBA BSP
*
* This file contains the GBA console I/O package.
*
*
* Copyright (c) 2004 Markku Puro <markku.puro@kopteri.net>
*
* The license and distribution terms for this file may be
* found in found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <unistd.h>
#include <bsp.h>
#include <rtems/bspIo.h>
#include <rtems/libio.h>
#include <rtems/termiostypes.h>
#include <termios.h>
#include <irq.h>
#include <s3c2400.h>
#include <conio.h>
/*
* BSP initialization
*/
static int gp32_pollRead(int minor)
{
return(gpconio_getch());
}
static int gp32_write(int minor, const char *buf, int len)
{
int i;
for(i = 0; i < len; i++) {
gpconio_putch((unsigned short)buf[i]);
}
return len;
}
/* for printk support */
BSP_output_char_function_type BSP_output_char = (BSP_output_char_function_type) gpconio_putch;
BSP_polling_getchar_function_type BSP_poll_char = (BSP_polling_getchar_function_type) gpconio_getch;
/*-------------------------------------------------------------------------+
| Console device driver INITIALIZE entry point.
+--------------------------------------------------------------------------+
| Initilizes the I/O console (keyboard + VGA display) driver.
+--------------------------------------------------------------------------*/
rtems_device_driver
console_initialize(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg)
{
rtems_status_code status;
/*
* Set up TERMIOS
*/
rtems_termios_initialize ();
/*
* Do device-specific initialization
*/
InitConIO();
/*
* Register the device
*/
status = rtems_io_register_name ("/dev/console", major, 0);
if (status != RTEMS_SUCCESSFUL) {
printk("Error registering console device!\n");
rtems_fatal_error_occurred (status);
}
return RTEMS_SUCCESSFUL;
}
/*-------------------------------------------------------------------------+
| Console device driver OPEN entry point
+--------------------------------------------------------------------------*/
rtems_device_driver
console_open(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg)
{
rtems_status_code status;
static rtems_termios_callbacks cb =
{
NULL, /* firstOpen */
NULL, /* lastClose */
gp32_pollRead, /* pollRead */
gp32_write, /* write */
NULL, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
TERMIOS_POLLED /* 1 = outputUsesInterrupts */
};
status = rtems_termios_open (major, minor, arg, &cb);
if(status != RTEMS_SUCCESSFUL) {
printk("Error openning console device\n");
return status;
}
return RTEMS_SUCCESSFUL;
}
/*-------------------------------------------------------------------------+
| Console device driver CLOSE entry point
+--------------------------------------------------------------------------*/
rtems_device_driver
console_close(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg)
{
rtems_device_driver res = RTEMS_SUCCESSFUL;
res = rtems_termios_close (arg);
return res;
}
/*-------------------------------------------------------------------------+
| Console device driver READ entry point.
+--------------------------------------------------------------------------+
| Read characters from the I/O console. We only have stdin.
+--------------------------------------------------------------------------*/
rtems_device_driver
console_read(rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg)
{
return rtems_termios_read (arg);
}
/*-------------------------------------------------------------------------+
| Console device driver WRITE entry point.
+--------------------------------------------------------------------------+
| Write characters to the I/O console. Stderr and stdout are the same.
+--------------------------------------------------------------------------*/
rtems_device_driver
console_write(rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg)
{
return rtems_termios_write (arg);
}
/*
* Handle ioctl request.
*/
rtems_device_driver
console_control(rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_ioctl (arg);
}
|
