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micropython/ports/esp32/modmachine.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* Development of the code in this file was sponsored by Microbric Pty Ltd
*
* The MIT License (MIT)
*
* Copyright (c) 2013-2015 Damien P. George
* Copyright (c) 2016 Paul Sokolovsky
*
* 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 <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_mac.h"
#include "esp_sleep.h"
#include "esp_pm.h"
#include "py/obj.h"
#include "py/runtime.h"
#include "shared/runtime/pyexec.h"
#include "drivers/dht/dht.h"
#include "extmod/modmachine.h"
#include "modmachine.h"
#include "machine_rtc.h"
#if MICROPY_PY_MACHINE
typedef enum {
MP_PWRON_RESET = 1,
MP_HARD_RESET,
MP_WDT_RESET,
MP_DEEPSLEEP_RESET,
MP_SOFT_RESET
} reset_reason_t;
STATIC bool is_soft_reset = 0;
#if CONFIG_IDF_TARGET_ESP32C3
int esp_clk_cpu_freq(void);
#endif
STATIC mp_obj_t machine_freq(size_t n_args, const mp_obj_t *args) {
if (n_args == 0) {
// get
return mp_obj_new_int(esp_rom_get_cpu_ticks_per_us() * 1000000);
} else {
// set
mp_int_t freq = mp_obj_get_int(args[0]) / 1000000;
if (freq != 20 && freq != 40 && freq != 80 && freq != 160
#if !CONFIG_IDF_TARGET_ESP32C3
&& freq != 240
#endif
) {
#if CONFIG_IDF_TARGET_ESP32C3
mp_raise_ValueError(MP_ERROR_TEXT("frequency must be 20MHz, 40MHz, 80Mhz or 160MHz"));
#else
mp_raise_ValueError(MP_ERROR_TEXT("frequency must be 20MHz, 40MHz, 80Mhz, 160MHz or 240MHz"));
#endif
}
#if CONFIG_IDF_TARGET_ESP32
esp_pm_config_esp32_t pm;
#elif CONFIG_IDF_TARGET_ESP32C3
esp_pm_config_esp32c3_t pm;
#elif CONFIG_IDF_TARGET_ESP32S2
esp_pm_config_esp32s2_t pm;
#elif CONFIG_IDF_TARGET_ESP32S3
esp_pm_config_esp32s3_t pm;
#endif
pm.max_freq_mhz = freq;
pm.min_freq_mhz = freq;
pm.light_sleep_enable = false;
esp_err_t ret = esp_pm_configure(&pm);
if (ret != ESP_OK) {
mp_raise_ValueError(NULL);
}
while (esp_rom_get_cpu_ticks_per_us() != freq) {
vTaskDelay(1);
}
return mp_const_none;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_freq_obj, 0, 1, machine_freq);
STATIC mp_obj_t machine_sleep_helper(wake_type_t wake_type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum {ARG_sleep_ms};
const mp_arg_t allowed_args[] = {
{ MP_QSTR_sleep_ms, MP_ARG_INT, { .u_int = 0 } },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
mp_int_t expiry = args[ARG_sleep_ms].u_int;
// First, disable any previously set wake-up source
esp_sleep_disable_wakeup_source(ESP_SLEEP_WAKEUP_ALL);
if (expiry != 0) {
esp_sleep_enable_timer_wakeup(((uint64_t)expiry) * 1000);
}
#if !CONFIG_IDF_TARGET_ESP32C3
if (machine_rtc_config.ext0_pin != -1 && (machine_rtc_config.ext0_wake_types & wake_type)) {
esp_sleep_enable_ext0_wakeup(machine_rtc_config.ext0_pin, machine_rtc_config.ext0_level ? 1 : 0);
}
if (machine_rtc_config.ext1_pins != 0) {
esp_sleep_enable_ext1_wakeup(
machine_rtc_config.ext1_pins,
machine_rtc_config.ext1_level ? ESP_EXT1_WAKEUP_ANY_HIGH : ESP_EXT1_WAKEUP_ALL_LOW);
}
if (machine_rtc_config.wake_on_touch) {
if (esp_sleep_enable_touchpad_wakeup() != ESP_OK) {
mp_raise_msg(&mp_type_RuntimeError, MP_ERROR_TEXT("esp_sleep_enable_touchpad_wakeup() failed"));
}
}
if (machine_rtc_config.wake_on_ulp) {
if (esp_sleep_enable_ulp_wakeup() != ESP_OK) {
mp_raise_msg(&mp_type_RuntimeError, MP_ERROR_TEXT("esp_sleep_enable_ulp_wakeup() failed"));
}
}
#endif
switch (wake_type) {
case MACHINE_WAKE_SLEEP:
esp_light_sleep_start();
break;
case MACHINE_WAKE_DEEPSLEEP:
esp_deep_sleep_start();
break;
}
return mp_const_none;
}
STATIC mp_obj_t machine_lightsleep(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
return machine_sleep_helper(MACHINE_WAKE_SLEEP, n_args, pos_args, kw_args);
};
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(machine_lightsleep_obj, 0, machine_lightsleep);
STATIC mp_obj_t machine_deepsleep(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
return machine_sleep_helper(MACHINE_WAKE_DEEPSLEEP, n_args, pos_args, kw_args);
};
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(machine_deepsleep_obj, 0, machine_deepsleep);
STATIC mp_obj_t machine_reset_cause(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
if (is_soft_reset) {
return MP_OBJ_NEW_SMALL_INT(MP_SOFT_RESET);
}
switch (esp_reset_reason()) {
case ESP_RST_POWERON:
case ESP_RST_BROWNOUT:
return MP_OBJ_NEW_SMALL_INT(MP_PWRON_RESET);
break;
case ESP_RST_INT_WDT:
case ESP_RST_TASK_WDT:
case ESP_RST_WDT:
return MP_OBJ_NEW_SMALL_INT(MP_WDT_RESET);
break;
case ESP_RST_DEEPSLEEP:
return MP_OBJ_NEW_SMALL_INT(MP_DEEPSLEEP_RESET);
break;
case ESP_RST_SW:
case ESP_RST_PANIC:
case ESP_RST_EXT: // Comment in ESP-IDF: "For ESP32, ESP_RST_EXT is never returned"
return MP_OBJ_NEW_SMALL_INT(MP_HARD_RESET);
break;
case ESP_RST_SDIO:
case ESP_RST_UNKNOWN:
default:
return MP_OBJ_NEW_SMALL_INT(0);
break;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(machine_reset_cause_obj, 0, machine_reset_cause);
NORETURN mp_obj_t machine_bootloader(size_t n_args, const mp_obj_t *args) {
MICROPY_BOARD_ENTER_BOOTLOADER(n_args, args);
for (;;) {
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_bootloader_obj, 0, 1, machine_bootloader);
void machine_init(void) {
is_soft_reset = 0;
}
void machine_deinit(void) {
// we are doing a soft-reset so change the reset_cause
is_soft_reset = 1;
}
STATIC mp_obj_t machine_wake_reason(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
return MP_OBJ_NEW_SMALL_INT(esp_sleep_get_wakeup_cause());
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(machine_wake_reason_obj, 0, machine_wake_reason);
STATIC mp_obj_t machine_reset(void) {
esp_restart();
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_obj, machine_reset);
STATIC mp_obj_t machine_soft_reset(void) {
pyexec_system_exit = PYEXEC_FORCED_EXIT;
mp_raise_type(&mp_type_SystemExit);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_soft_reset_obj, machine_soft_reset);
STATIC mp_obj_t machine_unique_id(void) {
uint8_t chipid[6];
esp_efuse_mac_get_default(chipid);
return mp_obj_new_bytes(chipid, 6);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_unique_id_obj, machine_unique_id);
STATIC mp_obj_t machine_idle(void) {
MP_THREAD_GIL_EXIT();
taskYIELD();
MP_THREAD_GIL_ENTER();
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_idle_obj, machine_idle);
STATIC mp_obj_t machine_disable_irq(void) {
uint32_t state = MICROPY_BEGIN_ATOMIC_SECTION();
return mp_obj_new_int(state);
}
MP_DEFINE_CONST_FUN_OBJ_0(machine_disable_irq_obj, machine_disable_irq);
STATIC mp_obj_t machine_enable_irq(mp_obj_t state_in) {
uint32_t state = mp_obj_get_int(state_in);
MICROPY_END_ATOMIC_SECTION(state);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(machine_enable_irq_obj, machine_enable_irq);
STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_machine) },
{ MP_ROM_QSTR(MP_QSTR_mem8), MP_ROM_PTR(&machine_mem8_obj) },
{ MP_ROM_QSTR(MP_QSTR_mem16), MP_ROM_PTR(&machine_mem16_obj) },
{ MP_ROM_QSTR(MP_QSTR_mem32), MP_ROM_PTR(&machine_mem32_obj) },
{ MP_ROM_QSTR(MP_QSTR_freq), MP_ROM_PTR(&machine_freq_obj) },
{ MP_ROM_QSTR(MP_QSTR_reset), MP_ROM_PTR(&machine_reset_obj) },
{ MP_ROM_QSTR(MP_QSTR_soft_reset), MP_ROM_PTR(&machine_soft_reset_obj) },
{ MP_ROM_QSTR(MP_QSTR_unique_id), MP_ROM_PTR(&machine_unique_id_obj) },
{ MP_ROM_QSTR(MP_QSTR_sleep), MP_ROM_PTR(&machine_lightsleep_obj) },
{ MP_ROM_QSTR(MP_QSTR_lightsleep), MP_ROM_PTR(&machine_lightsleep_obj) },
{ MP_ROM_QSTR(MP_QSTR_deepsleep), MP_ROM_PTR(&machine_deepsleep_obj) },
{ MP_ROM_QSTR(MP_QSTR_idle), MP_ROM_PTR(&machine_idle_obj) },
{ MP_ROM_QSTR(MP_QSTR_bootloader), MP_ROM_PTR(&machine_bootloader_obj) },
{ MP_ROM_QSTR(MP_QSTR_disable_irq), MP_ROM_PTR(&machine_disable_irq_obj) },
{ MP_ROM_QSTR(MP_QSTR_enable_irq), MP_ROM_PTR(&machine_enable_irq_obj) },
#if MICROPY_PY_MACHINE_BITSTREAM
{ MP_ROM_QSTR(MP_QSTR_bitstream), MP_ROM_PTR(&machine_bitstream_obj) },
#endif
#if MICROPY_PY_MACHINE_PULSE
{ MP_ROM_QSTR(MP_QSTR_time_pulse_us), MP_ROM_PTR(&machine_time_pulse_us_obj) },
#endif
{ MP_ROM_QSTR(MP_QSTR_dht_readinto), MP_ROM_PTR(&dht_readinto_obj) },
{ MP_ROM_QSTR(MP_QSTR_Timer), MP_ROM_PTR(&machine_timer_type) },
#if MICROPY_PY_MACHINE_WDT
{ MP_ROM_QSTR(MP_QSTR_WDT), MP_ROM_PTR(&machine_wdt_type) },
#endif
#if MICROPY_HW_ENABLE_SDCARD
{ MP_ROM_QSTR(MP_QSTR_SDCard), MP_ROM_PTR(&machine_sdcard_type) },
#endif
// wake abilities
{ MP_ROM_QSTR(MP_QSTR_SLEEP), MP_ROM_INT(MACHINE_WAKE_SLEEP) },
{ MP_ROM_QSTR(MP_QSTR_DEEPSLEEP), MP_ROM_INT(MACHINE_WAKE_DEEPSLEEP) },
{ MP_ROM_QSTR(MP_QSTR_Pin), MP_ROM_PTR(&machine_pin_type) },
{ MP_ROM_QSTR(MP_QSTR_Signal), MP_ROM_PTR(&machine_signal_type) },
#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
{ MP_ROM_QSTR(MP_QSTR_TouchPad), MP_ROM_PTR(&machine_touchpad_type) },
#endif
#if MICROPY_PY_MACHINE_ADC
{ MP_ROM_QSTR(MP_QSTR_ADC), MP_ROM_PTR(&machine_adc_type) },
#endif
{ MP_ROM_QSTR(MP_QSTR_ADCBlock), MP_ROM_PTR(&machine_adcblock_type) },
#if MICROPY_PY_MACHINE_DAC
{ MP_ROM_QSTR(MP_QSTR_DAC), MP_ROM_PTR(&machine_dac_type) },
#endif
{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&machine_i2c_type) },
{ MP_ROM_QSTR(MP_QSTR_SoftI2C), MP_ROM_PTR(&mp_machine_soft_i2c_type) },
#if MICROPY_PY_MACHINE_I2S
{ MP_ROM_QSTR(MP_QSTR_I2S), MP_ROM_PTR(&machine_i2s_type) },
#endif
{ MP_ROM_QSTR(MP_QSTR_PWM), MP_ROM_PTR(&machine_pwm_type) },
{ MP_ROM_QSTR(MP_QSTR_RTC), MP_ROM_PTR(&machine_rtc_type) },
{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&machine_spi_type) },
{ MP_ROM_QSTR(MP_QSTR_SoftSPI), MP_ROM_PTR(&mp_machine_soft_spi_type) },
#if MICROPY_PY_MACHINE_UART
{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&machine_uart_type) },
#endif
// Reset reasons
{ MP_ROM_QSTR(MP_QSTR_reset_cause), MP_ROM_PTR(&machine_reset_cause_obj) },
{ MP_ROM_QSTR(MP_QSTR_HARD_RESET), MP_ROM_INT(MP_HARD_RESET) },
{ MP_ROM_QSTR(MP_QSTR_PWRON_RESET), MP_ROM_INT(MP_PWRON_RESET) },
{ MP_ROM_QSTR(MP_QSTR_WDT_RESET), MP_ROM_INT(MP_WDT_RESET) },
{ MP_ROM_QSTR(MP_QSTR_DEEPSLEEP_RESET), MP_ROM_INT(MP_DEEPSLEEP_RESET) },
{ MP_ROM_QSTR(MP_QSTR_SOFT_RESET), MP_ROM_INT(MP_SOFT_RESET) },
// Wake reasons
{ MP_ROM_QSTR(MP_QSTR_wake_reason), MP_ROM_PTR(&machine_wake_reason_obj) },
{ MP_ROM_QSTR(MP_QSTR_PIN_WAKE), MP_ROM_INT(ESP_SLEEP_WAKEUP_EXT0) },
{ MP_ROM_QSTR(MP_QSTR_EXT0_WAKE), MP_ROM_INT(ESP_SLEEP_WAKEUP_EXT0) },
{ MP_ROM_QSTR(MP_QSTR_EXT1_WAKE), MP_ROM_INT(ESP_SLEEP_WAKEUP_EXT1) },
{ MP_ROM_QSTR(MP_QSTR_TIMER_WAKE), MP_ROM_INT(ESP_SLEEP_WAKEUP_TIMER) },
{ MP_ROM_QSTR(MP_QSTR_TOUCHPAD_WAKE), MP_ROM_INT(ESP_SLEEP_WAKEUP_TOUCHPAD) },
{ MP_ROM_QSTR(MP_QSTR_ULP_WAKE), MP_ROM_INT(ESP_SLEEP_WAKEUP_ULP) },
};
STATIC MP_DEFINE_CONST_DICT(machine_module_globals, machine_module_globals_table);
const mp_obj_module_t mp_module_machine = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t *)&machine_module_globals,
};
MP_REGISTER_EXTENSIBLE_MODULE(MP_QSTR_machine, mp_module_machine);
#endif // MICROPY_PY_MACHINE
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