0,0 → 1,73 |
/* |
* Copyright (C) 2005 Ondrej Palkovsky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - 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. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <putchar.h> |
#include <arch/types.h> |
#include <arch/cp0.h> |
#include <arch/console.h> |
#include <arch.h> |
#include <arch/drivers/arc.h> |
#include <arch/arch.h> |
|
/** Putchar that works with MSIM & gxemul */ |
static void cons_putchar(const char ch) |
{ |
*((char *) VIDEORAM) = ch; |
} |
|
/** Putchar that works with simics */ |
static void serial_putchar(const char ch) |
{ |
int i; |
|
if (ch=='\n') |
putchar('\r'); |
|
/* Wait until transmit buffer empty */ |
while (! ((*SERIAL_LSR) & (1<<TRANSMIT_EMPTY_BIT))) |
; |
*(SERIAL_PORT_BASE) = ch; |
} |
|
static void (*putchar_func)(const char ch) = cons_putchar; |
|
void console_init(void) |
{ |
if (arc_enabled()) |
putchar_func = arc_putchar; |
/* The LSR on the start usually contains this value */ |
else if (*SERIAL_LSR == 0x60) |
putchar_func = serial_putchar; |
else |
putchar_func = cons_putchar; |
} |
|
void putchar(const char ch) |
{ |
putchar_func(ch); |
} |