108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
/* cfe.c -- I/O code for the MIPS boards running CFE. */
|
|
|
|
/*
|
|
* Copyright 2001, 2002, 2003
|
|
* Broadcom Corporation. All rights reserved.
|
|
*
|
|
* This software is furnished under license and may be used and copied only
|
|
* in accordance with the following terms and conditions. Subject to these
|
|
* conditions, you may download, copy, install, use, modify and distribute
|
|
* modified or unmodified copies of this software in source and/or binary
|
|
* form. No title or ownership is transferred hereby.
|
|
*
|
|
* 1) Any source code used, modified or distributed must reproduce and
|
|
* retain this copyright notice and list of conditions as they appear in
|
|
* the source file.
|
|
*
|
|
* 2) No right is granted to use any trade name, trademark, or logo of
|
|
* Broadcom Corporation. The "Broadcom Corporation" name may not be
|
|
* used to endorse or promote products derived from this software
|
|
* without the prior written permission of Broadcom Corporation.
|
|
*
|
|
* 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
|
|
* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
|
|
* FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
|
|
* LIABLE FOR 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,
|
|
*/
|
|
|
|
#include "cfe_api.h"
|
|
|
|
void *__libcfe_init (long handle, long a1, long cfe_entrypoint, long a3);
|
|
void __libcfe_exit (long status);
|
|
|
|
char inbyte (void);
|
|
int outbyte (char c);
|
|
|
|
/* Echo input characters? */
|
|
int __libcfe_echo_input = 0;
|
|
|
|
/* CFE handle used to access console device. */
|
|
static int cfe_conshandle;
|
|
|
|
|
|
/* Initialize firmware callbacks. Called from crt0_cfe. Returns desired
|
|
stack pointer. */
|
|
void *
|
|
__libcfe_init (long handle, long a1, long entrypoint, long a3)
|
|
{
|
|
cfe_init (handle, entrypoint);
|
|
cfe_conshandle = cfe_getstdhandle (CFE_STDHANDLE_CONSOLE);
|
|
|
|
__libcfe_meminit ();
|
|
return __libcfe_stack_top ();
|
|
}
|
|
|
|
/* Exit back to monitor, with the given status code. */
|
|
void
|
|
__libcfe_exit (long status)
|
|
{
|
|
outbyte ('\r');
|
|
outbyte ('\n');
|
|
cfe_exit (CFE_FLG_WARMSTART, status);
|
|
}
|
|
|
|
char
|
|
inbyte (void)
|
|
{
|
|
unsigned char c;
|
|
int rv;
|
|
|
|
while (cfe_read (cfe_conshandle, &c, 1) != 1)
|
|
;
|
|
if (c == '\r')
|
|
c = '\n';
|
|
if (__libcfe_echo_input)
|
|
outbyte (c);
|
|
return c;
|
|
}
|
|
|
|
int
|
|
outbyte (char c)
|
|
{
|
|
int res;
|
|
|
|
do
|
|
{
|
|
res = cfe_write (cfe_conshandle, &c, 1);
|
|
}
|
|
while (res == 0);
|
|
if (c == '\n')
|
|
outbyte ('\r');
|
|
return 0;
|
|
}
|
|
|
|
/* This is the MIPS cache flush function call. No defines are provided
|
|
by libgloss for 'cache', and CFE doesn't let you flush ranges, so
|
|
we just flush all I & D for every call. */
|
|
int
|
|
_flush_cache (char *addr, int nbytes, int cache)
|
|
{
|
|
cfe_flushcache (0);
|
|
return 0;
|
|
}
|