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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-16 19:38:09 +00:00
trezor-firmware/embed/firmware/main.c
2017-10-06 11:11:43 +02:00

114 lines
2.6 KiB
C

#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "py/nlr.h"
#include "py/compile.h"
#include "py/runtime.h"
#include "py/stackctrl.h"
#include "py/repl.h"
#include "py/gc.h"
#include "py/mperrno.h"
#include "lib/utils/pyexec.h"
#include "gccollect.h"
#include "pendsv.h"
#include "common.h"
#include "display.h"
#include "flash.h"
#include "rng.h"
#include "sdcard.h"
#include "touch.h"
bool firmware_standalone(void)
{
// linker script defined symbol -- reference 3.5.5 in GNU linker manual
extern const uint32_t _flash_start;
return &_flash_start == ((uint32_t *) 0x0800000);
}
int main(void) {
if (firmware_standalone()) {
SystemInit();
}
periph_init();
pendsv_init();
if (firmware_standalone()) {
display_init();
} else {
display_pwm_init();
display_orientation(0);
display_backlight(255);
}
if (0 != flash_init()) {
__fatal_error("flash_init", __FILE__, __LINE__, __FUNCTION__);
}
if (0 != sdcard_init()) {
__fatal_error("sdcard_init", __FILE__, __LINE__, __FUNCTION__);
}
if (0 != touch_init()) {
__fatal_error("touch_init", __FILE__, __LINE__, __FUNCTION__);
}
for (;;) {
printf("CORE: Starting main loop\n");
// Stack limit should be less than real stack size, so we have a chance
// to recover from limit hit.
mp_stack_set_top(&_estack);
mp_stack_set_limit((char*)&_estack - (char*)&_heap_end - 1024);
// GC init
gc_init(&_heap_start, &_heap_end);
// Interpreter init
mp_init();
mp_obj_list_init(mp_sys_argv, 0);
mp_obj_list_init(mp_sys_path, 0);
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_)); // current dir (or base dir of the script)
// Run the main script
printf("CORE: Executing main script\n");
pyexec_frozen_module("main.py");
// Run REPL
printf("CORE: Executing REPL\n");
for (;;) {
if (pyexec_friendly_repl() != 0) {
break;
}
}
// Clean up
mp_deinit();
}
return 0;
}
// Micropython file I/O stubs
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
return NULL;
}
mp_import_stat_t mp_import_stat(const char *path) {
return MP_IMPORT_STAT_NO_EXIST;
}
mp_obj_t mp_builtin_open(uint n_args, const mp_obj_t *args, mp_map_t *kwargs) {
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
void mp_reader_new_file(mp_reader_t *reader, const char *filename) {
mp_raise_OSError(MP_ENOENT); // assume "file not found"
}