/**
* @file
*
* @ingroup Console
*
* @brief Generic libchip console select
*
* This file contains a routine to select the console based upon a number
* of criteria.
*/
/*
* COPYRIGHT (c) 2011-2012.
* 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.com/license/LICENSE.
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <assert.h>
#include <termios.h>
#include <rtems/termiostypes.h>
#include <libchip/serial.h>
#include "../../../shared/console_private.h"
#ifdef RTEMS_RUNTIME_CONSOLE_SELECT
#include <crt.h>
#endif
/*
* Method to return true if the device associated with the
* minor number probs available.
*/
static bool bsp_Is_Available( rtems_device_minor_number minor )
{
console_tbl *cptr = Console_Port_Tbl[minor];
/*
* First perform the configuration dependent probe, then the
* device dependent probe
*/
if ((!cptr->deviceProbe || cptr->deviceProbe(minor)) &&
cptr->pDeviceFns->deviceProbe(minor)) {
return true;
}
return false;
}
/*
* Method to return the first available device.
*/
static rtems_device_minor_number bsp_First_Available_Device( void )
{
rtems_device_minor_number minor;
for (minor=0; minor < Console_Port_Count ; minor++) {
console_tbl *cptr = Console_Port_Tbl[minor];
/*
* First perform the configuration dependent probe, then the
* device dependent probe
*/
if ((!cptr->deviceProbe || cptr->deviceProbe(minor)) &&
cptr->pDeviceFns->deviceProbe(minor)) {
return minor;
}
}
/*
* Error No devices were found. We will want to bail here.
*/
rtems_fatal_error_occurred(RTEMS_IO_ERROR);
}
void bsp_console_select(void)
{
static const char* opt;
/*
* Check the command line for the type of mode the console is.
*/
opt = bsp_cmdline_arg ("--console=");
if (opt) {
const char* comma;
opt += sizeof ("--console=") - 1;
if (strncmp (opt, "console", sizeof ("console") - 1) == 0) {
Console_Port_Minor = BSP_CONSOLE_VGA;
BSPPrintkPort = BSP_CONSOLE_VGA;
} else if (strncmp (opt, "com1", sizeof ("com1") - 1) == 0) {
Console_Port_Minor = BSP_CONSOLE_COM1;
BSPPrintkPort = BSP_CONSOLE_COM1;
} else if (strncmp (opt, "com2", sizeof ("com2") - 1) == 0) {
Console_Port_Minor = BSP_CONSOLE_COM2;
BSPPrintkPort = BSP_CONSOLE_COM2;
}
comma = strchr (opt, ',');
if (comma) {
console_tbl *conscfg;
comma += 1;
conscfg = &Console_Configuration_Ports[Console_Port_Minor];
if (strncmp (opt, "115200", sizeof ("115200") - 1) == 0)
conscfg->pDeviceParams = (void *)115200;
else if (strncmp (opt, "57600", sizeof ("57600") - 1) == 0)
conscfg->pDeviceParams = (void *)57600;
else if (strncmp (opt, "38400", sizeof ("38400") - 1) == 0)
conscfg->pDeviceParams = (void *)38400;
else if (strncmp (opt, "19200", sizeof ("19200") - 1) == 0)
conscfg->pDeviceParams = (void *)19200;
else if (strncmp (opt, "9600", sizeof ("9600") - 1) == 0)
conscfg->pDeviceParams = (void *)9600;
else if (strncmp (opt, "4800", sizeof ("4800") - 1) == 0)
conscfg->pDeviceParams = (void *)4800;
}
}
#ifdef RTEMS_RUNTIME_CONSOLE_SELECT
if ( BSP_runtime_console_select )
BSP_runtime_console_select(&BSPPrintkPort, &Console_Port_Minor);
/*
* If no video card, fall back to serial port console
*/
if((Console_Port_Minor == BSP_CONSOLE_VGA)
&& (*(unsigned char*) NB_MAX_ROW_ADDR == 0)
&& (*(unsigned short*)NB_MAX_COL_ADDR == 0)) {
Console_Port_Minor = BSP_CONSOLE_COM2;
BSPPrintkPort = BSP_CONSOLE_COM1;
}
#endif
/*
* If the device that was selected isn't available then
* let the user know and select the first available device.
*/
if ( !bsp_Is_Available( Console_Port_Minor ) ) {
printk(
"Error finding %s setting console to first available\n",
Console_Port_Tbl[Console_Port_Minor]->sDeviceName
);
Console_Port_Minor = bsp_First_Available_Device();
}
}
