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circuitpython/ports/esp8266/main.c

194 lines
6.0 KiB

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2014 Damien P. George
*
* 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 <stdio.h>
#include <string.h>
#include "py/compile.h"
#include "py/frozenmod.h"
#include "py/runtime.h"
#include "py/stackctrl.h"
#include "py/mperrno.h"
#include "py/mphal.h"
#include "py/gc.h"
#include "lib/oofatfs/ff.h"
#include "lib/mp-readline/readline.h"
#include "lib/utils/pyexec.h"
#include "gccollect.h"
#include "user_interface.h"
#include "common-hal/microcontroller/Pin.h"
#include "common-hal/pulseio/PWMOut.h"
STATIC char heap[36 * 1024];
bool maybe_run(const char* filename, pyexec_result_t* exec_result) {
mp_import_stat_t stat = mp_import_stat(filename);
if (stat != MP_IMPORT_STAT_FILE) {
return false;
}
mp_hal_stdout_tx_str(filename);
mp_hal_stdout_tx_str(" output:\r\n");
pyexec_file(filename, exec_result);
return true;
}
bool serial_active = false;
STATIC bool start_mp(void) {
pyexec_frozen_module("_boot.py");
pyexec_result_t result;
bool found_boot = maybe_run("settings.txt", &result) ||
maybe_run("settings.py", &result) ||
maybe_run("boot.py", &result) ||
maybe_run("boot.txt", &result);
if (!found_boot || !(result.return_code & PYEXEC_FORCED_EXIT)) {
maybe_run("code.txt", &result) ||
maybe_run("code.py", &result) ||
maybe_run("main.py", &result) ||
maybe_run("main.txt", &result);
}
if (result.return_code & PYEXEC_FORCED_EXIT) {
return false;
}
// We can't detect connections so we wait for any character to mark the serial active.
if (!serial_active) {
mp_hal_stdin_rx_chr();
serial_active = true;
}
mp_hal_stdout_tx_str("\r\n\r\n");
mp_hal_stdout_tx_str("Press any key to enter the REPL. Use CTRL-D to soft reset.\r\n");
return mp_hal_stdin_rx_chr() == CHAR_CTRL_D;
}
STATIC void mp_reset(void) {
mp_stack_set_top((void*)0x40000000);
mp_stack_set_limit(8192);
mp_hal_init();
gc_init(heap, heap + sizeof(heap));
mp_init();
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)
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_lib));
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_));
// Frozen modules are in their own pseudo-dir, e.g., ".frozen".
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_FROZEN_FAKE_DIR_QSTR));
mp_obj_list_init(mp_sys_argv, 0);
reset_pins();
#if MICROPY_EMIT_XTENSA || MICROPY_EMIT_INLINE_XTENSA
extern void esp_native_code_init(void);
esp_native_code_init();
#endif
pin_init0();
readline_init0();
dupterm_task_init();
pwmout_reset();
}
bool soft_reset(void) {
gc_sweep_all();
mp_hal_stdout_tx_str("PYB: soft reboot\r\n");
mp_hal_delay_us(10000); // allow UART to flush output
mp_reset();
mp_hal_delay_us(1000); // Give the RTOS time to do housekeeping.
return start_mp();
}
void init_done(void) {
mp_reset();
mp_hal_delay_us(1000); // Give the RTOS time to do housekeeping.
bool skip_repl = start_mp();
mp_hal_stdout_tx_str("\r\n");
int exit_code = PYEXEC_FORCED_EXIT;
while (true) {
if (!skip_repl) {
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
exit_code = pyexec_raw_repl();
} else {
exit_code = pyexec_friendly_repl();
}
}
if (exit_code == PYEXEC_FORCED_EXIT) {
skip_repl = soft_reset();
} else if (exit_code != 0) {
break;
}
}
}
void user_init(void) {
system_init_done_cb(init_done);
}
#if !MICROPY_VFS
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
mp_raise_OSError(MP_ENOENT);
}
mp_import_stat_t mp_import_stat(const char *path) {
(void)path;
return MP_IMPORT_STAT_NO_EXIST;
}
mp_obj_t mp_builtin_open(size_t 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);
#endif
void MP_FASTCODE(nlr_jump_fail)(void *val) {
printf("NLR jump failed\n");
for (;;) {
}
}
//void __assert(const char *file, int line, const char *func, const char *expr) {
void __assert(const char *file, int line, const char *expr) {
printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
for (;;) {
}
}
#if !MICROPY_DEBUG_PRINTERS
// With MICROPY_DEBUG_PRINTERS disabled DEBUG_printf is not defined but it
// is still needed by esp-open-lwip for debugging output, so define it here.
#include <stdarg.h>
int mp_vprintf(const mp_print_t *print, const char *fmt, va_list args);
int DEBUG_printf(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
int ret = mp_vprintf(&MICROPY_DEBUG_PRINTER_DEST, fmt, ap);
va_end(ap);
return ret;
}
#endif