M7350/bootable/bootloader/lk/platform/armemu/debug.c

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2024-09-09 08:52:07 +00:00
/*
* Copyright (c) 2008 Travis Geiselbrecht
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdarg.h>
#include <reg.h>
#include <printf.h>
#include <kernel/thread.h>
#include <platform/armemu/memmap.h>
#include <platform/debug.h>
void _dputc(char c)
{
*REG8(DEBUG_STDOUT) = c;
}
int dgetc(char *c, bool wait)
{
for (;;) {
int8_t result = (int8_t)*REG8(DEBUG_STDIN);
if (result == -1) {
if (wait)
continue;
else
return -1;
}
*c = (char)result;
return 0;
}
}
void debug_dump_regs(void)
{
*REG32(DEBUG_REGDUMP) = 1;
}
void platform_halt(void)
{
*REG32(DEBUG_HALT) = 1;
for(;;);
}
void debug_dump_memory_bytes(void *mem, int len)
{
*REG32(DEBUG_MEMDUMPADDR) = (unsigned int)mem;
*REG32(DEBUG_MEMDUMPLEN) = len;
*REG32(DEBUG_MEMDUMP_BYTE) = 1;
}
void debug_dump_memory_halfwords(void *mem, int len)
{
len /= 2;
*REG32(DEBUG_MEMDUMPADDR) = (unsigned int)mem;
*REG32(DEBUG_MEMDUMPLEN) = len;
*REG32(DEBUG_MEMDUMP_HALFWORD) = 1;
}
void debug_dump_memory_words(void *mem, int len)
{
len /= 4;
*REG32(DEBUG_MEMDUMPADDR) = (unsigned int)mem;
*REG32(DEBUG_MEMDUMPLEN) = len;
*REG32(DEBUG_MEMDUMP_WORD) = 1;
}
void debug_set_trace_level(int trace_type, int level)
{
if(trace_type < 0 || trace_type >= 4)
return;
*REG32(DEBUG_SET_TRACELEVEL_CPU + trace_type * 4) = level;
}
uint32_t debug_cycle_count()
{
return *REG32(DEBUG_CYCLE_COUNT);
}