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micropython/ports/rp2/main.c
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/* | |
* This file is part of the MicroPython project, http://micropython.org/ | |
* | |
* The MIT License (MIT) | |
* | |
* Copyright (c) 2020-2021 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 "py/compile.h" | |
#include "py/runtime.h" | |
#include "py/gc.h" | |
#include "py/mperrno.h" | |
#include "py/mphal.h" | |
#include "py/stackctrl.h" | |
#include "extmod/modbluetooth.h" | |
#include "extmod/modnetwork.h" | |
#include "shared/readline/readline.h" | |
#include "shared/runtime/gchelper.h" | |
#include "shared/runtime/pyexec.h" | |
#include "shared/runtime/softtimer.h" | |
#include "shared/tinyusb/mp_usbd.h" | |
#include "uart.h" | |
#include "modmachine.h" | |
#include "modrp2.h" | |
#include "mpbthciport.h" | |
#include "mpnetworkport.h" | |
#include "genhdr/mpversion.h" | |
#include "mp_usbd.h" | |
#include "pico/stdlib.h" | |
#include "pico/binary_info.h" | |
#include "pico/unique_id.h" | |
#include "hardware/rtc.h" | |
#include "hardware/structs/rosc.h" | |
#if MICROPY_PY_LWIP | |
#include "lwip/init.h" | |
#include "lwip/apps/mdns.h" | |
#endif | |
#if MICROPY_PY_NETWORK_CYW43 | |
#include "lib/cyw43-driver/src/cyw43.h" | |
#endif | |
extern uint8_t __StackTop, __StackBottom; | |
extern uint8_t __GcHeapStart, __GcHeapEnd; | |
// Embed version info in the binary in machine readable form | |
bi_decl(bi_program_version_string(MICROPY_GIT_TAG)); | |
// Add a section to the picotool output similar to program features, but for frozen modules | |
// (it will aggregate BINARY_INFO_ID_MP_FROZEN binary info) | |
bi_decl(bi_program_feature_group_with_flags(BINARY_INFO_TAG_MICROPYTHON, | |
BINARY_INFO_ID_MP_FROZEN, "frozen modules", | |
BI_NAMED_GROUP_SEPARATE_COMMAS | BI_NAMED_GROUP_SORT_ALPHA)); | |
int main(int argc, char **argv) { | |
// This is a tickless port, interrupts should always trigger SEV. | |
SCB->SCR |= SCB_SCR_SEVONPEND_Msk; | |
pendsv_init(); | |
soft_timer_init(); | |
#if MICROPY_HW_ENABLE_UART_REPL | |
bi_decl(bi_program_feature("UART REPL")) | |
setup_default_uart(); | |
mp_uart_init(); | |
#else | |
#ifndef NDEBUG | |
stdio_init_all(); | |
#endif | |
#endif | |
#if MICROPY_HW_ENABLE_USBDEV && MICROPY_HW_USB_CDC | |
bi_decl(bi_program_feature("USB REPL")) | |
#endif | |
#if MICROPY_PY_THREAD | |
bi_decl(bi_program_feature("thread support")) | |
mp_thread_init(); | |
#endif | |
// Start and initialise the RTC | |
datetime_t t = { | |
.year = 2021, | |
.month = 1, | |
.day = 1, | |
.dotw = 4, // 0 is Monday, so 4 is Friday | |
.hour = 0, | |
.min = 0, | |
.sec = 0, | |
}; | |
rtc_init(); | |
rtc_set_datetime(&t); | |
mp_hal_time_ns_set_from_rtc(); | |
// Initialise stack extents and GC heap. | |
mp_stack_set_top(&__StackTop); | |
mp_stack_set_limit(&__StackTop - &__StackBottom - 256); | |
gc_init(&__GcHeapStart, &__GcHeapEnd); | |
#if MICROPY_PY_LWIP | |
// lwIP doesn't allow to reinitialise itself by subsequent calls to this function | |
// because the system timeout list (next_timeout) is only ever reset by BSS clearing. | |
// So for now we only init the lwIP stack once on power-up. | |
lwip_init(); | |
#if LWIP_MDNS_RESPONDER | |
mdns_resp_init(); | |
#endif | |
#endif | |
#if MICROPY_PY_NETWORK_CYW43 || MICROPY_PY_BLUETOOTH_CYW43 | |
{ | |
cyw43_init(&cyw43_state); | |
cyw43_irq_init(); | |
cyw43_post_poll_hook(); // enable the irq | |
uint8_t buf[8]; | |
memcpy(&buf[0], "PICO", 4); | |
// MAC isn't loaded from OTP yet, so use unique id to generate the default AP ssid. | |
const char hexchr[16] = "0123456789ABCDEF"; | |
pico_unique_board_id_t pid; | |
pico_get_unique_board_id(&pid); | |
buf[4] = hexchr[pid.id[7] >> 4]; | |
buf[5] = hexchr[pid.id[6] & 0xf]; | |
buf[6] = hexchr[pid.id[5] >> 4]; | |
buf[7] = hexchr[pid.id[4] & 0xf]; | |
cyw43_wifi_ap_set_ssid(&cyw43_state, 8, buf); | |
cyw43_wifi_ap_set_auth(&cyw43_state, CYW43_AUTH_WPA2_AES_PSK); | |
cyw43_wifi_ap_set_password(&cyw43_state, 8, (const uint8_t *)"picoW123"); | |
} | |
#endif | |
for (;;) { | |
// Initialise MicroPython runtime. | |
mp_init(); | |
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_lib)); | |
// Initialise sub-systems. | |
readline_init0(); | |
machine_pin_init(); | |
rp2_pio_init(); | |
rp2_dma_init(); | |
machine_i2s_init0(); | |
#if MICROPY_PY_BLUETOOTH | |
mp_bluetooth_hci_init(); | |
#endif | |
#if MICROPY_PY_NETWORK | |
mod_network_init(); | |
#endif | |
#if MICROPY_PY_LWIP | |
mod_network_lwip_init(); | |
#endif | |
// Execute _boot.py to set up the filesystem. | |
#if MICROPY_VFS_FAT && MICROPY_HW_USB_MSC | |
pyexec_frozen_module("_boot_fat.py", false); | |
#else | |
pyexec_frozen_module("_boot.py", false); | |
#endif | |
// Execute user scripts. | |
int ret = pyexec_file_if_exists("boot.py"); | |
#if MICROPY_HW_ENABLE_USBDEV | |
mp_usbd_init(); | |
#endif | |
if (ret & PYEXEC_FORCED_EXIT) { | |
goto soft_reset_exit; | |
} | |
if (pyexec_mode_kind == PYEXEC_MODE_FRIENDLY_REPL && ret != 0) { | |
ret = pyexec_file_if_exists("main.py"); | |
if (ret & PYEXEC_FORCED_EXIT) { | |
goto soft_reset_exit; | |
} | |
} | |
for (;;) { | |
if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) { | |
if (pyexec_raw_repl() != 0) { | |
break; | |
} | |
} else { | |
if (pyexec_friendly_repl() != 0) { | |
break; | |
} | |
} | |
} | |
soft_reset_exit: | |
mp_printf(MP_PYTHON_PRINTER, "MPY: soft reboot\n"); | |
#if MICROPY_PY_NETWORK | |
mod_network_deinit(); | |
#endif | |
rp2_dma_deinit(); | |
rp2_pio_deinit(); | |
#if MICROPY_PY_BLUETOOTH | |
mp_bluetooth_deinit(); | |
#endif | |
machine_pwm_deinit_all(); | |
machine_pin_deinit(); | |
#if MICROPY_PY_THREAD | |
mp_thread_deinit(); | |
#endif | |
soft_timer_deinit(); | |
#if MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE | |
mp_usbd_deinit(); | |
#endif | |
gc_sweep_all(); | |
mp_deinit(); | |
} | |
return 0; | |
} | |
void gc_collect(void) { | |
gc_collect_start(); | |
gc_helper_collect_regs_and_stack(); | |
#if MICROPY_PY_THREAD | |
mp_thread_gc_others(); | |
#endif | |
gc_collect_end(); | |
} | |
void nlr_jump_fail(void *val) { | |
mp_printf(&mp_plat_print, "FATAL: uncaught exception %p\n", val); | |
mp_obj_print_exception(&mp_plat_print, MP_OBJ_FROM_PTR(val)); | |
for (;;) { | |
__breakpoint(); | |
} | |
} | |
#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); | |
panic("Assertion failed"); | |
} | |
#endif | |
#define POLY (0xD5) | |
uint8_t rosc_random_u8(size_t cycles) { | |
static uint8_t r; | |
for (size_t i = 0; i < cycles; ++i) { | |
r = ((r << 1) | rosc_hw->randombit) ^ (r & 0x80 ? POLY : 0); | |
mp_hal_delay_us_fast(1); | |
} | |
return r; | |
} | |
uint32_t rosc_random_u32(void) { | |
uint32_t value = 0; | |
for (size_t i = 0; i < 4; ++i) { | |
value = value << 8 | rosc_random_u8(32); | |
} | |
return value; | |
} |