127 lines
3.7 KiB
C++
127 lines
3.7 KiB
C++
/*
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* Copyright (C) OpenTX
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*
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* Based on code named
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* th9x - http://code.google.com/p/th9x
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* er9x - http://code.google.com/p/er9x
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* gruvin9x - http://code.google.com/p/gruvin9x
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*
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* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
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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 version 2 as
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* published by the Free Software Foundation.
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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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#include "opentx.h"
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void pwrInit()
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = PWR_ON_GPIO_PIN;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
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GPIO_ResetBits(INTMODULE_PWR_GPIO, INTMODULE_PWR_GPIO_PIN);
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GPIO_InitStructure.GPIO_Pin = INTMODULE_PWR_GPIO_PIN;
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GPIO_Init(INTMODULE_PWR_GPIO, &GPIO_InitStructure);
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EXTERNAL_MODULE_PWR_OFF();
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GPIO_InitStructure.GPIO_Pin = EXTMODULE_PWR_GPIO_PIN;
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GPIO_Init(EXTMODULE_PWR_GPIO, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Pin = PWR_SWITCH_GPIO_PIN;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
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GPIO_Init(PWR_SWITCH_GPIO, &GPIO_InitStructure);
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#if defined(TRAINER_DETECT_GPIO_PIN)
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GPIO_InitStructure.GPIO_Pin = TRAINER_DETECT_GPIO_PIN;
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GPIO_Init(TRAINER_DETECT_GPIO, &GPIO_InitStructure);
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#endif
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#if defined(PCBREV_GPIO_PIN)
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GPIO_ResetBits(PCBREV_GPIO, PCBREV_GPIO_PIN);
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GPIO_InitStructure.GPIO_Pin = PCBREV_GPIO_PIN;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
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GPIO_Init(PCBREV_GPIO, &GPIO_InitStructure);
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#endif
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#if defined(INTMODULE_BOOTCMD_GPIO)
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GPIO_ResetBits(INTMODULE_BOOTCMD_GPIO, INTMODULE_BOOTCMD_GPIO_PIN);
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GPIO_InitStructure.GPIO_Pin = INTMODULE_BOOTCMD_GPIO_PIN;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
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GPIO_Init(INTMODULE_BOOTCMD_GPIO, &GPIO_InitStructure);
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#endif
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pwrOn();
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}
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void pwrOn()
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = PWR_ON_GPIO_PIN;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
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GPIO_Init(PWR_ON_GPIO, &GPIO_InitStructure);
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GPIO_SetBits(PWR_ON_GPIO, PWR_ON_GPIO_PIN);
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}
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void pwrOff()
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{
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GPIO_ResetBits(PWR_ON_GPIO, PWR_ON_GPIO_PIN);
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// disable interrupts
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__disable_irq();
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while (1) {
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wdt_reset();
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#if defined(PWR_BUTTON_PRESS)
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// X9E/X7 needs watchdog reset because CPU is still running while
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// the power key is held pressed by the user.
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// The power key should be released by now, but we must make sure
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if (!pwrPressed()) {
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// Put the CPU into sleep to reduce the consumption,
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// it might help with the RTC reset issue
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PWR->CR |= PWR_CR_CWUF;
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/* Select STANDBY mode */
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PWR->CR |= PWR_CR_PDDS;
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/* Set SLEEPDEEP bit of Cortex System Control Register */
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SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
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/* Request Wait For Event */
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__WFE();
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}
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#endif
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}
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// this function must not return!
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}
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uint32_t pwrPressed()
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{
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return GPIO_ReadInputDataBit(PWR_SWITCH_GPIO, PWR_SWITCH_GPIO_PIN) == Bit_RESET;
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}
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void pwrResetHandler()
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{
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RCC->AHB1ENR |= RCC_AHB1ENR_GPIOEEN;
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// these two NOPs are needed (see STM32F errata sheet) before the peripheral
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// register can be written after the peripheral clock was enabled
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__ASM volatile ("nop");
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__ASM volatile ("nop");
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if (WAS_RESET_BY_WATCHDOG_OR_SOFTWARE()) {
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pwrOn();
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}
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}
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