mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2026-08-13 19:33:41 +00:00
Pezsma
140 lines
3.8 KiB
C++
140 lines
3.8 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "irq_rtc.hpp"
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#include "ch.h"
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#include "lpc43xx_cpp.hpp"
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using namespace lpc43xx;
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#include "event_m0.hpp"
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#include "nvic.h"
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#include "lpc43xx.inc"
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static Thread* thread_rtc_event = NULL;
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void rtc_interrupt_enable() {
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thread_rtc_event = chThdSelf();
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rtc::interrupt::enable_second_inc();
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nvicEnableVector(RTC_IRQn, CORTEX_PRIORITY_MASK(LPC_RTC_IRQ_PRIORITY));
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}
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void rtc_reset_default() {
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// 1. FULL RTC CLEANUP/RESET
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LPC_RTC->CIIR = 0;
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LPC_RTC->AMR = 0xFF; // Disable all alarms
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LPC_RTC->ILR = 3; // Clear stuck interrupt flags
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LPC_RTC->ASEC = 0;
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LPC_RTC->AMIN = 0;
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LPC_RTC->AHRS = 0;
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// 2. RESET EVENT ROUTER
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// Reset to edge-triggered (Garantálja, hogy nem ragad be az ébresztés!)
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LPC_EVENTROUTER->EDGE |= (1 << 5);
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// DISABLE RTC channel routing
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LPC_EVENTROUTER->CLR_EN = (1 << 5);
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// Clear pending events
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LPC_EVENTROUTER->CLR_STAT = 0xFFFFFFFF;
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}
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void rtc_wakeup_init() {
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rtc_reset_default();
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// 1. Force RTC Clock (In case it was modified by the app)
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// Bit 0: Enable, Bit 4: Calibration OFF
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LPC_RTC->CCR = (1 << 0);
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// 2. EVENT ROUTER CONFIGURATION
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LPC_EVENTROUTER->HILO |= (1 << 5);
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LPC_EVENTROUTER->EDGE |= (1 << 5); // <-- JAVÍTVA! (Itt volt a hiba a te kódodban)
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LPC_EVENTROUTER->CLR_STAT = 0xFFFFFFFF; // Clear pending events
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LPC_EVENTROUTER->SET_EN = (1 << 5); // Enable RTC channel routing
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// 3. NVIC Cleanup
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NVIC_ClearPendingIRQ(RTC_IRQn);
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NVIC_ClearPendingIRQ(EVENTROUTER_IRQn);
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NVIC_EnableIRQ(RTC_IRQn);
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NVIC_EnableIRQ(EVENTROUTER_IRQn);
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}
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void rtc_wakeup(uint32_t sleep_seconds) {
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// 1. Safety cleanup after application tasks
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LPC_RTC->CCR &= ~(1 << 4); // Disable calibration (Important!)
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uint32_t sec = LPC_RTC->SEC;
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uint32_t min = LPC_RTC->MIN;
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uint32_t hrs = LPC_RTC->HRS;
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sec += sleep_seconds;
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while (sec >= 60) {
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sec -= 60;
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min++;
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}
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while (min >= 60) {
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min -= 60;
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hrs++;
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}
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while (hrs >= 24) {
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hrs -= 24;
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}
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// 2. Write values to alarm registers
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LPC_RTC->ASEC = sec;
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LPC_RTC->AMIN = min;
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LPC_RTC->AHRS = hrs;
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// Mask for SEC, MIN, HRS (Disable all other alarm triggers)
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uint32_t mask = 0xFF ^ ((1 << 0) | (1 << 1) | (1 << 2));
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LPC_RTC->AMR = mask;
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// Verify write (Sync with RTC domain)
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while (LPC_RTC->ASEC != sec);
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while (LPC_RTC->AMR != mask);
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// Brief extra delay to allow internal logic to settle/latch
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for (volatile int i = 0; i < 5000; i++) __asm__("nop");
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}
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extern "C" {
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CH_IRQ_HANDLER(RTC_IRQHandler) {
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CH_IRQ_PROLOGUE();
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#ifdef PRALINE
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if (thread_rtc_event) {
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chSysLockFromIsr();
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chEvtSignalI(thread_rtc_event, EVT_MASK_RTC_TICK);
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chSysUnlockFromIsr();
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}
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#else
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chSysLockFromIsr();
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chEvtSignalI(thread_rtc_event, EVT_MASK_RTC_TICK);
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chSysUnlockFromIsr();
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#endif
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rtc::interrupt::clear_all();
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CH_IRQ_EPILOGUE();
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}
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}
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