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/*
* @file
*
* @ingroup Console
*
* @brief printk support routines
*
* This file contains the required printk support.
*/
/*
* COPYRIGHT (c) 1989-2012.
* 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 <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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