0,0 → 1,108 |
/* |
* 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 <arch/drivers/arc.h> |
#include <arch/mm/page.h> |
#include <print.h> |
#include <arch.h> |
#include <arch/byteorder.h> |
|
/* This is a good joke, SGI HAS different types than NT bioses... */ |
/* Here is the SGI type */ |
static char *basetypes[] = { |
"ExceptionBlock", |
"SystemParameterBlock", |
"FreeContiguous", |
"FreeMemory", |
"BadMemory", |
"LoadedProgram", |
"FirmwareTemporary", |
"FirmwarePermanent" |
}; |
|
static arc_sbp *sbp = (arc_sbp *)PA2KA(0x1000); |
static arc_func_vector_t *arc_entry; |
|
static void _arc_putchar(char ch); |
|
/** Initialize ARC structure |
* |
* @return 0 - ARC OK, -1 - ARC does not exist |
*/ |
int init_arc(void) |
{ |
if (sbp->signature != ARC_MAGIC) { |
sbp = NULL; |
return -1; |
} |
arc_entry = sbp->firmwarevector; |
|
arc_putchar('A'); |
arc_putchar('R'); |
arc_putchar('C'); |
arc_putchar('\n'); |
} |
|
/** Return true if ARC is available */ |
int arc_enabled(void) |
{ |
return sbp != NULL; |
} |
|
void arc_print_memory_map(void) |
{ |
arc_memdescriptor_t *desc; |
|
if (!sbp) { |
printf("ARC not enabled.\n"); |
return; |
} |
|
printf("Memory map:\n"); |
|
desc = arc_entry->getmemorydescriptor(NULL); |
while (desc) { |
printf("%s: %d (size: %dKB)\n",basetypes[desc->type], |
desc->basepage * 4096, |
desc->basecount*4); |
desc = arc_entry->getmemorydescriptor(desc); |
} |
} |
|
/** Print charactor to console */ |
void arc_putchar(char ch) |
{ |
__u32 cnt; |
pri_t pri; |
|
/* TODO: Should be spinlock? */ |
pri = cpu_priority_high(); |
arc_entry->write(1, &ch, 1, &cnt); |
cpu_priority_restore(pri); |
|
} |