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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* This file contains the hardware independent portion of a polled
* console device driver. If a BSP chooses to use this, then it
* only has to provide a few board dependent routines.
*/
/*
* COPYRIGHT (c) 1989-1997.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <assert.h>
#include <bsp/console-polled.h>
#include <bsp/fatal.h>
#include <rtems/console.h>
/*
* Prototypes
*/
ssize_t console_write_support(int, const char *, size_t);
/*
* Console Termios Support Entry Points
*
*/
ssize_t console_write_support (
int minor,
const char *bufarg,
size_t len
)
{
int nwrite = 0;
const char *buf = bufarg;
while (nwrite < len) {
console_outbyte_polled( minor, *buf++ );
nwrite++;
}
return nwrite;
}
/*
* Console Device Driver Entry Points
*
*/
rtems_device_driver console_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_status_code status;
/*
* Ensure Termios is initialized
*/
rtems_termios_initialize();
/*
* Make sure the hardware is initialized.
*/
console_initialize_hardware();
/*
* Register Device Names
*/
status = rtems_io_register_name( "/dev/console", major, 0 );
if (status != RTEMS_SUCCESSFUL)
rtems_fatal_error_occurred(BSP_FATAL_CONSOLE_REGISTER_DEV_2);
return RTEMS_SUCCESSFUL;
}
rtems_device_driver console_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
static const rtems_termios_callbacks pollCallbacks = {
NULL, /* firstOpen */
NULL, /* lastClose */
console_inbyte_nonblocking, /* pollRead */
console_write_support, /* write */
NULL, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
TERMIOS_POLLED /* outputUsesInterrupts */
};
assert( minor == 0 );
if ( minor != 0 )
return RTEMS_INVALID_NUMBER;
rtems_termios_open( major, minor, arg, &pollCallbacks );
return RTEMS_SUCCESSFUL;
}
rtems_device_driver console_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_close( arg );
}
rtems_device_driver console_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_read( arg );
}
rtems_device_driver console_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_write( arg );
}
rtems_device_driver console_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_ioctl( arg );
}
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