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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* @file
*
* @ingroup Console
*
* @brief printk support routines
*
* This file contains the required printk support.
*/
/*
* COPYRIGHT (c) 1989-2012.
* 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 <rtems.h>
#include <rtems/bspIo.h>
#if BSP_ENABLE_VGA
#include <rtems/keyboard.h>
#endif
#include <bsp.h>
#include <libchip/serial.h>
#include <libchip/ns16550.h>
#include "../../shared/dev/serial/legacy-console.h"
rtems_device_minor_number BSPPrintkPort = 0;
static bool serialInit;
static bool serialOK;
static bool serialValid(console_tbl *port)
{
if (port->pDeviceFns) {
if (!serialInit) {
serialOK = true;
if (port->pDeviceFns->deviceProbe != NULL) {
if (!port->pDeviceFns->deviceProbe( BSPPrintkPort ))
serialOK = false;
else if (port->pDeviceFns->deviceInitialize != NULL)
port->pDeviceFns->deviceInitialize( BSPPrintkPort );
else
serialOK = false;
}
serialInit = true;
}
}
return serialOK;
}
void BSP_outch(char ch);
int BSP_inch(void);
void BSP_outch(char ch)
{
#if BSP_ENABLE_VGA
bool isVga = BSPPrintkPort == BSP_CONSOLE_VGA;
#else
bool isVga = false;
#endif
if ( !isVga ) {
console_tbl *port = Console_Port_Tbl[BSPPrintkPort];
if (serialValid(port)) {
if (port->pDeviceFns->deviceWritePolled) {
port->pDeviceFns->deviceWritePolled( BSPPrintkPort, ch );
}
return;
}
}
#if BSP_ENABLE_VGA
_IBMPC_outch( ch );
#endif
}
int BSP_inch(void)
{
#if BSP_ENABLE_VGA
bool isVga = BSPPrintkPort == BSP_CONSOLE_VGA;
#else
bool isVga = false;
#endif
int result = -1;
if ( !isVga ) {
console_tbl *port = Console_Port_Tbl[BSPPrintkPort];
if (serialValid(port)) {
if (port->pDeviceFns->deviceRead) {
do {
result = port->pDeviceFns->deviceRead( BSPPrintkPort );
} while (result == -1);
return result;
}
}
}
#if BSP_ENABLE_VGA
result = BSP_wait_polled_input();
#endif
return result;
}
BSP_output_char_function_type BSP_output_char = BSP_outch;
BSP_polling_getchar_function_type BSP_poll_char = BSP_inch;
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