| /* |
| * 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); |
| } |