6839fff313
* atmel-samd: Remove ASF3. This will break builds. * atmel-samd: Add ASF4 for the SAMD21 and SAMD51. * Introduce the supervisor concept to facilitate porting. The supervisor is the code which runs individual MicroPython VMs. By splitting it out we make it more consistent and easier to find. This also adds very basic SAMD21 and SAMD51 support using the supervisor. Only the REPL currently works. This begins the work for #178.
342 lines
12 KiB
C
342 lines
12 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2016-2017 Scott Shawcroft for Adafruit Industries
|
|
*
|
|
* 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 <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include "extmod/vfs.h"
|
|
#include "extmod/vfs_fat.h"
|
|
|
|
#include "py/nlr.h"
|
|
#include "py/compile.h"
|
|
#include "py/frozenmod.h"
|
|
#include "py/mphal.h"
|
|
#include "py/runtime.h"
|
|
#include "py/repl.h"
|
|
#include "py/gc.h"
|
|
#include "py/stackctrl.h"
|
|
|
|
#include "lib/mp-readline/readline.h"
|
|
#include "lib/utils/pyexec.h"
|
|
|
|
#include "mpconfigboard.h"
|
|
#include "supervisor/port.h"
|
|
#include "supervisor/filesystem.h"
|
|
// TODO(tannewt): Figure out how to choose language at compile time.
|
|
#include "supervisor/messages/en-US.h"
|
|
#include "supervisor/shared/autoreload.h"
|
|
#include "supervisor/shared/rgb_led_status.h"
|
|
#include "supervisor/serial.h"
|
|
|
|
void do_str(const char *src, mp_parse_input_kind_t input_kind) {
|
|
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
|
|
if (lex == NULL) {
|
|
//printf("MemoryError: lexer could not allocate memory\n");
|
|
return;
|
|
}
|
|
|
|
nlr_buf_t nlr;
|
|
if (nlr_push(&nlr) == 0) {
|
|
qstr source_name = lex->source_name;
|
|
mp_parse_tree_t parse_tree = mp_parse(lex, input_kind);
|
|
mp_obj_t module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, true);
|
|
mp_call_function_0(module_fun);
|
|
nlr_pop();
|
|
} else {
|
|
// uncaught exception
|
|
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
|
|
}
|
|
}
|
|
|
|
static char heap[PORT_HEAP_SIZE];
|
|
|
|
void reset_mp(void) {
|
|
reset_status_led();
|
|
new_status_color(0x8f008f);
|
|
autoreload_stop();
|
|
|
|
// Sync the file systems in case any used RAM from the GC to cache. As soon
|
|
// as we re-init the GC all bets are off on the cache.
|
|
filesystem_flush();
|
|
|
|
// Clear the readline history. It references the heap we're about to destroy.
|
|
readline_init0();
|
|
|
|
#if MICROPY_ENABLE_GC
|
|
gc_init(heap, heap + sizeof(heap));
|
|
#endif
|
|
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_));
|
|
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_lib));
|
|
// 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);
|
|
}
|
|
|
|
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;
|
|
}
|
|
serial_write(filename);
|
|
serial_write(MSG_OUTPUT_SUFFIX);
|
|
pyexec_file(filename, exec_result);
|
|
return true;
|
|
}
|
|
|
|
bool start_mp(safe_mode_t safe_mode) {
|
|
bool serial_connected_at_start = serial_connected();
|
|
#ifdef CIRCUITPY_AUTORELOAD_DELAY_MS
|
|
if (serial_connected_at_start) {
|
|
serial_write(MSG_NEWLINE);
|
|
if (autoreload_is_enabled()) {
|
|
serial_write(MSG_AUTORELOAD_ON);
|
|
} else if (safe_mode != NO_SAFE_MODE) {
|
|
serial_write(MSG_SAFE_MODE_ON);
|
|
} else if (!autoreload_is_enabled()) {
|
|
serial_write(MSG_AUTORELOAD_OFF);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
pyexec_result_t result;
|
|
bool found_main = false;
|
|
if (safe_mode != NO_SAFE_MODE) {
|
|
serial_write(MSG_SAFE_MODE_NO_MAIN);
|
|
} else {
|
|
new_status_color(MAIN_RUNNING);
|
|
found_main = maybe_run("code.txt", &result) ||
|
|
maybe_run("code.py", &result) ||
|
|
maybe_run("main.py", &result) ||
|
|
maybe_run("main.txt", &result);
|
|
reset_status_led();
|
|
|
|
if (result.return_code & PYEXEC_FORCED_EXIT) {
|
|
return reload_next_character;
|
|
}
|
|
}
|
|
|
|
// Wait for connection or character.
|
|
bool serial_connected_before_animation = false;
|
|
rgb_status_animation_t animation;
|
|
prep_rgb_status_animation(&result, found_main, &animation);
|
|
while (true) {
|
|
#ifdef MICROPY_VM_HOOK_LOOP
|
|
MICROPY_VM_HOOK_LOOP
|
|
#endif
|
|
if (reload_next_character) {
|
|
return true;
|
|
}
|
|
if (serial_connected() && serial_bytes_available()) {
|
|
// Skip REPL if reload was requested.
|
|
return serial_read() == CHAR_CTRL_D;
|
|
}
|
|
|
|
if (!serial_connected_before_animation && serial_connected()) {
|
|
if (serial_connected_at_start) {
|
|
serial_write(MSG_NEWLINE MSG_NEWLINE);
|
|
}
|
|
|
|
if (!serial_connected_at_start) {
|
|
if (autoreload_is_enabled()) {
|
|
serial_write(MSG_AUTORELOAD_ON);
|
|
} else {
|
|
serial_write(MSG_AUTORELOAD_OFF);
|
|
}
|
|
}
|
|
// Output a user safe mode string if its set.
|
|
#ifdef BOARD_USER_SAFE_MODE
|
|
if (safe_mode == USER_SAFE_MODE) {
|
|
serial_write(MSG_NEWLINE MSG_SAFE_MODE_USER_REQUESTED);
|
|
serial_write(BOARD_USER_SAFE_MODE_ACTION);
|
|
serial_write(MSG_NEWLINE MSG_SAFE_MODE_USER_EXIT);
|
|
serial_write(BOARD_USER_SAFE_MODE_ACTION);
|
|
serial_write(MSG_NEWLINE);
|
|
} else
|
|
#endif
|
|
if (safe_mode != NO_SAFE_MODE) {
|
|
serial_write(MSG_NEWLINE MSG_BAD_SAFE_MODE MSG_NEWLINE);
|
|
if (safe_mode == HARD_CRASH) {
|
|
serial_write(MSG_SAFE_MODE_CRASH MSG_NEWLINE);
|
|
serial_write(MSG_SAFE_MODE_FILE_ISSUE MSG_NEWLINE);
|
|
serial_write(MSG_SAFE_MODE_ISSUE_LINK MSG_NEWLINE);
|
|
} else if (safe_mode == BROWNOUT) {
|
|
serial_write(MSG_SAFE_MODE_BROWN_OUT_LINE_1 MSG_NEWLINE);
|
|
serial_write(MSG_SAFE_MODE_BROWN_OUT_LINE_2 MSG_NEWLINE);
|
|
}
|
|
}
|
|
serial_write(MSG_NEWLINE MSG_WAIT_BEFORE_REPL MSG_NEWLINE);
|
|
}
|
|
if (serial_connected_before_animation && !serial_connected()) {
|
|
serial_connected_at_start = false;
|
|
}
|
|
serial_connected_before_animation = serial_connected();
|
|
|
|
tick_rgb_status_animation(&animation);
|
|
}
|
|
}
|
|
|
|
int __attribute__((used)) main(void) {
|
|
// initialise the cpu and peripherals
|
|
safe_mode_t safe_mode = port_init();
|
|
|
|
rgb_led_status_init();
|
|
|
|
// Stack limit should be less than real stack size, so we have a chance
|
|
// to recover from limit hit. (Limit is measured in bytes.)
|
|
mp_stack_ctrl_init();
|
|
mp_stack_set_limit((char*)&_estack - (char*)&_ebss - 1024);
|
|
|
|
#if MICROPY_MAX_STACK_USAGE
|
|
// _ezero (same as _ebss) is an int, so start 4 bytes above it.
|
|
mp_stack_set_bottom(&_ezero + 1);
|
|
mp_stack_fill_with_sentinel();
|
|
#endif
|
|
|
|
filesystem_init();
|
|
|
|
// Reset everything and prep MicroPython to run boot.py.
|
|
reset_port();
|
|
reset_board();
|
|
reset_mp();
|
|
|
|
// Turn on autoreload by default but before boot.py in case it wants to change it.
|
|
autoreload_enable();
|
|
|
|
// By default our internal flash is readonly to local python code and
|
|
// writeable over USB. Set it here so that boot.py can change it.
|
|
filesystem_default_writeable(false);
|
|
|
|
// If not in safe mode, run boot before initing USB and capture output in a
|
|
// file.
|
|
if (filesystem_present() && safe_mode == NO_SAFE_MODE && MP_STATE_VM(vfs_mount_table) != NULL) {
|
|
new_status_color(BOOT_RUNNING);
|
|
#ifdef CIRCUITPY_BOOT_OUTPUT_FILE
|
|
// Since USB isn't up yet we can cheat and let ourselves write the boot
|
|
// output file.
|
|
filesystem_default_writeable(true);
|
|
FIL file_pointer;
|
|
boot_output_file = &file_pointer;
|
|
f_open(&((fs_user_mount_t *) MP_STATE_VM(vfs_mount_table)->obj)->fatfs,
|
|
boot_output_file, CIRCUITPY_BOOT_OUTPUT_FILE, FA_WRITE | FA_CREATE_ALWAYS);
|
|
filesystem_default_writeable(false);
|
|
#endif
|
|
|
|
// TODO(tannewt): Re-add support for flashing boot error output.
|
|
bool found_boot = maybe_run("settings.txt", NULL) ||
|
|
maybe_run("settings.py", NULL) ||
|
|
maybe_run("boot.py", NULL) ||
|
|
maybe_run("boot.txt", NULL);
|
|
(void) found_boot;
|
|
|
|
#ifdef CIRCUITPY_BOOT_OUTPUT_FILE
|
|
f_close(boot_output_file);
|
|
filesystem_flush();
|
|
boot_output_file = NULL;
|
|
#endif
|
|
|
|
// Reset to remove any state that boot.py setup. It should only be used to
|
|
// change internal state thats not in the heap.
|
|
reset_port();
|
|
reset_mp();
|
|
}
|
|
|
|
// Start serial after giving boot.py a chance to tweak behavior.
|
|
serial_init();
|
|
|
|
// Boot script is finished, so now go into REPL/main mode.
|
|
int exit_code = PYEXEC_FORCED_EXIT;
|
|
bool skip_repl = true;
|
|
bool first_run = true;
|
|
for (;;) {
|
|
if (!skip_repl) {
|
|
// The REPL mode can change, or it can request a reload.
|
|
bool autoreload_on = autoreload_is_enabled();
|
|
autoreload_disable();
|
|
new_status_color(REPL_RUNNING);
|
|
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
|
|
exit_code = pyexec_raw_repl();
|
|
} else {
|
|
exit_code = pyexec_friendly_repl();
|
|
}
|
|
if (autoreload_on) {
|
|
autoreload_enable();
|
|
}
|
|
reset_port();
|
|
reset_board();
|
|
reset_mp();
|
|
}
|
|
if (exit_code == PYEXEC_FORCED_EXIT) {
|
|
if (!first_run) {
|
|
serial_write(MSG_SOFT_REBOOT MSG_NEWLINE);
|
|
}
|
|
first_run = false;
|
|
skip_repl = start_mp(safe_mode);
|
|
reset_port();
|
|
reset_board();
|
|
reset_mp();
|
|
} else if (exit_code != 0) {
|
|
break;
|
|
}
|
|
}
|
|
mp_deinit();
|
|
return 0;
|
|
}
|
|
|
|
void gc_collect(void) {
|
|
// WARNING: This gc_collect implementation doesn't try to get root
|
|
// pointers from CPU registers, and thus may function incorrectly.
|
|
void *dummy;
|
|
gc_collect_start();
|
|
// This collects root pointers from the VFS mount table. Some of them may
|
|
// have lost their references in the VM even though they are mounted.
|
|
gc_collect_root((void**)&MP_STATE_VM(vfs_mount_table), sizeof(mp_vfs_mount_t) / sizeof(mp_uint_t));
|
|
// This naively collects all object references from an approximate stack
|
|
// range.
|
|
gc_collect_root(&dummy, ((mp_uint_t)&_estack - (mp_uint_t)&dummy) / sizeof(mp_uint_t));
|
|
gc_collect_end();
|
|
}
|
|
|
|
void NORETURN nlr_jump_fail(void *val) {
|
|
HardFault_Handler();
|
|
while (true) {}
|
|
}
|
|
|
|
void NORETURN __fatal_error(const char *msg) {
|
|
HardFault_Handler();
|
|
while (true) {}
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
|
|
printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
|
|
__fatal_error("Assertion failed");
|
|
}
|
|
#endif
|