229 lines
6.3 KiB
C
229 lines
6.3 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
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* Copyright (c) 2020 Dan Halbert for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/gc.h"
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#include "py/obj.h"
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#include "py/objtuple.h"
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#include "py/runtime.h"
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#include <stdio.h>
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#include <string.h>
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#include "shared-bindings/alarm/__init__.h"
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#include "shared-bindings/alarm/SleepMemory.h"
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#include "shared-bindings/alarm/pin/PinAlarm.h"
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#include "shared-bindings/alarm/time/TimeAlarm.h"
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#include "shared-bindings/alarm/touch/TouchAlarm.h"
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//#include "shared-bindings/wifi/__init__.h"
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//#include "shared-bindings/microcontroller/__init__.h"
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#include "supervisor/port.h"
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#ifdef MY_DEBUGUART
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#include "supervisor/serial.h" // dbg_printf()
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#endif
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#include "nrf.h"
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#include "nrf_power.h"
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#include "nrfx.h"
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#include "nrfx_gpiote.h"
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// Singleton instance of SleepMemory.
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const alarm_sleep_memory_obj_t alarm_sleep_memory_obj = {
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.base = {
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.type = &alarm_sleep_memory_type,
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},
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};
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void alarm_reset(void) {
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alarm_sleep_memory_reset();
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alarm_pin_pinalarm_reset();
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alarm_time_timealarm_reset();
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//alarm_touch_touchalarm_reset();
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}
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extern uint32_t reset_reason_saved;
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STATIC nrf_sleep_source_t _get_wakeup_cause(void) {
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if (alarm_pin_pinalarm_woke_us_up()) {
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return NRF_SLEEP_WAKEUP_GPIO;
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}
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if (alarm_time_timealarm_woke_us_up()) {
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return NRF_SLEEP_WAKEUP_TIMER;
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}
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#if 0
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// XXX not implemented yet
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if (alarm_touch_touchalarm_woke_us_up()) {
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return ESP_SLEEP_WAKEUP_TOUCHPAD;
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}
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#endif
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if (reset_reason_saved & NRF_POWER_RESETREAS_RESETPIN_MASK) {
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return NRF_SLEEP_WAKEUP_RESETPIN;
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}
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else if (reset_reason_saved & NRF_POWER_RESETREAS_OFF_MASK) {
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return NRF_SLEEP_WAKEUP_GPIO;
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}
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else if (reset_reason_saved & NRF_POWER_RESETREAS_VBUS_MASK) {
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return NRF_SLEEP_WAKEUP_VBUS;
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}
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return NRF_SLEEP_WAKEUP_UNDEFINED;
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}
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bool alarm_woken_from_sleep(void) {
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nrf_sleep_source_t cause = _get_wakeup_cause();
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return (cause == NRF_SLEEP_WAKEUP_GPIO || cause == NRF_SLEEP_WAKEUP_TIMER
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|| cause == NRF_SLEEP_WAKEUP_TOUCHPAD
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|| cause == NRF_SLEEP_WAKEUP_RESETPIN);
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}
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#ifdef MY_DEBUGUART
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#if 0
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static const char* cause_str[] = {
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"UNDEFINED",
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"GPIO",
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"TIMER",
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"TOUCHPAD",
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"VBUS",
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"RESETPIN",
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};
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#endif
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#endif
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STATIC mp_obj_t _get_wake_alarm(size_t n_alarms, const mp_obj_t *alarms) {
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nrf_sleep_source_t cause = _get_wakeup_cause();
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#if 0
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if (cause >= 0 && cause < NRF_SLEEP_WAKEUP_ZZZ) {
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printf("wakeup cause = NRF_SLEEP_WAKEUP_%s\r\n", cause_str[(int)cause]);
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}
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#endif
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switch (cause) {
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case NRF_SLEEP_WAKEUP_TIMER: {
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return alarm_time_timealarm_get_wakeup_alarm(n_alarms, alarms);
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}
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case NRF_SLEEP_WAKEUP_TOUCHPAD: {
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return mp_const_none;
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}
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case NRF_SLEEP_WAKEUP_GPIO: {
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return alarm_pin_pinalarm_get_wakeup_alarm(n_alarms, alarms);
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}
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default:
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break;
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}
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return mp_const_none;
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}
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mp_obj_t common_hal_alarm_get_wake_alarm(void) {
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mp_obj_t obj = _get_wake_alarm(0, NULL);
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return obj;
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}
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// Set up light sleep or deep sleep alarms.
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STATIC void _setup_sleep_alarms(bool deep_sleep, size_t n_alarms, const mp_obj_t *alarms) {
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alarm_pin_pinalarm_set_alarms(deep_sleep, n_alarms, alarms);
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alarm_time_timealarm_set_alarms(deep_sleep, n_alarms, alarms);
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#if 0
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// XXX not implemented yet
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alarm_touch_touchalarm_set_alarm(deep_sleep, n_alarms, alarms);
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#endif
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}
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STATIC void _idle_until_alarm(void) {
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#ifdef MY_DEBUGUART
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int ct = 40;
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#endif
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reset_reason_saved = 0;
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// Poll for alarms.
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while (!mp_hal_is_interrupted()) {
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RUN_BACKGROUND_TASKS;
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// Allow ctrl-C interrupt.
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if (alarm_woken_from_sleep()) {
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alarm_save_wake_alarm();
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#ifdef MY_DEBUGUART
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int cause = _get_wakeup_cause();
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printf("wakeup(%d)\r\n", cause);
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#endif
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return;
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}
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port_idle_until_interrupt();
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#ifdef MY_DEBUGUART
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if (ct > 0) {
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printf("_");
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--ct;
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}
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#endif
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}
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}
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mp_obj_t common_hal_alarm_light_sleep_until_alarms(size_t n_alarms, const mp_obj_t *alarms) {
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mp_obj_t r_obj = mp_const_none;
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_setup_sleep_alarms(false, n_alarms, alarms);
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#ifdef MY_DEBUGUART
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dbg_printf("\r\nsleep...");
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#endif
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_idle_until_alarm();
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if (mp_hal_is_interrupted()) {
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#ifdef MY_DEBUGUART
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dbg_printf("mp_hal_is_interrupted\r\n");
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#endif
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r_obj = mp_const_none;
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}
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else {
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r_obj = _get_wake_alarm(n_alarms, alarms);
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alarm_reset();
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}
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return r_obj;
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}
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void common_hal_alarm_set_deep_sleep_alarms(size_t n_alarms, const mp_obj_t *alarms) {
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_setup_sleep_alarms(true, n_alarms, alarms);
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}
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void NORETURN alarm_enter_deep_sleep(void) {
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alarm_pin_pinalarm_prepare_for_deep_sleep();
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//alarm_touch_touchalarm_prepare_for_deep_sleep(); // XXX
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uint8_t sd_enabled;
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sd_softdevice_is_enabled(&sd_enabled);
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#ifdef MY_DEBUGUART
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dbg_printf("go system off.. %d\r\n", sd_enabled);
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#endif
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if (sd_enabled) {
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sd_power_system_off();
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}
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else {
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NRF_POWER->SYSTEMOFF = 1;
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}
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// should not reach here..
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while(1) ;
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}
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void common_hal_alarm_gc_collect(void) {
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void* p = alarm_get_wake_alarm();
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gc_collect_ptr(p);
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}
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