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https://github.com/drasko/open-ameba.git
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291 lines
10 KiB
C
291 lines
10 KiB
C
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/* mbed Microcontroller Library
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*******************************************************************************
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* Copyright (c) 2014, STMicroelectronics
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************
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*/
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#include "sleep_ex_api.h"
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#include "cmsis.h"
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extern VOID SleepCG(u8 Option, u32 SDuration, u8 ClkSourceEn, u8 SDREn);
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extern VOID DeepStandby(u8 Option, u32 SDuration, u8 GpioOption);
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extern VOID DeepSleep(u8 Option, u32 SDuration);
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SLEEP_WAKEUP_EVENT DStandbyWakeupEvent={0};
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/**
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* @brief To make the system entering the Clock Gated power saving.
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* This function just make the system to enter the clock gated
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* power saving mode and pending on wake up event waitting.
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* The user application need to configure the peripheral to
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* generate system wake up event, like GPIO interrupt
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* , G-Timer timeout, etc. befor entering power saving mode.
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*
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* @param wakeup_event: A bit map of wake up event. Available event:
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* SLEEP_WAKEUP_BY_STIMER
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* SLEEP_WAKEUP_BY_GTIMER
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* SLEEP_WAKEUP_BY_GPIO_INT
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* SLEEP_WAKEUP_BY_WLAN
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* SLEEP_WAKEUP_BY_NFC
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* SLEEP_WAKEUP_BY_SDIO
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* SLEEP_WAKEUP_BY_USB
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* sleep_duration: the system sleep duration in ms, only valid
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* for SLEEP_WAKEUP_BY_STIMER wake up event.
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*
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* @retval None
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*/
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void sleep_ex(uint32_t wakeup_event, uint32_t sleep_duration)
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{
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u8 wake_ev=0;
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wake_ev = wakeup_event & 0xff;
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if (sleep_duration == 0) {
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wake_ev &= ~SLP_STIMER;
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}
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if (wake_ev == 0) {
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// error: No wakeup event, skip the entering sleep mode
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return;
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}
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SleepCG(wake_ev, sleep_duration, 0, 0); // same as old configuration: SCLK off & SDR no power off
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}
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/**
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* @brief To make the system entering the Clock Gated power saving.
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* This function just make the system to enter the clock gated
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* power saving mode and pending on wake up event waitting.
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* The user application need to configure the peripheral to
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* generate system wake up event, like GPIO interrupt
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* , G-Timer timeout, etc. befor entering power saving mode.
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*
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* @param wakeup_event: A bit map of wake up event. Available event:
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* SLEEP_WAKEUP_BY_STIMER
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* SLEEP_WAKEUP_BY_GTIMER
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* SLEEP_WAKEUP_BY_GPIO_INT
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* SLEEP_WAKEUP_BY_WLAN
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* SLEEP_WAKEUP_BY_NFC
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* SLEEP_WAKEUP_BY_SDIO
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* SLEEP_WAKEUP_BY_USB
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* sleep_duration: the system sleep duration in ms, only valid
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* for SLEEP_WAKEUP_BY_STIMER wake up event.
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* clk_sourec_enable: the option for SCLK on(1)/off(0)
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* sdr_enable: the option for turn off the SDR controller (1:off, 0:on)
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*
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* @retval None
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*/
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void sleep_ex_selective(uint32_t wakeup_event, uint32_t sleep_duration, uint32_t clk_sourec_enable, uint32_t sdr_enable)
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{
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u8 wake_ev=0;
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u8 sdr_en=0;
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u8 clk_source_en=0;
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wake_ev = wakeup_event & 0xff;
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sdr_en = sdr_enable & 0xff;
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clk_source_en = clk_sourec_enable & 0xff;
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if (sleep_duration == 0) {
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wake_ev &= ~SLP_STIMER;
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}
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if (wake_ev == 0) {
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// error: No wakeup event, skip the entering sleep mode
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return;
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}
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SleepCG(wake_ev, sleep_duration, clk_source_en, sdr_en);
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}
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/**
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* @brief To add a wake up event to wake up the system from the
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* deep standby power saving mode.
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*
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* @param wakeup_event: A bit map of wake up event. Available event:
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* STANDBY_WAKEUP_BY_STIMER
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* STANDBY_WAKEUP_BY_NFC
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* STANDBY_WAKEUP_BY_PA5 (GPIO)
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* STANDBY_WAKEUP_BY_PC7 (GPIO)
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* STANDBY_WAKEUP_BY_PD5 (GPIO)
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* STANDBY_WAKEUP_BY_PE3 (GPIO)
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* sleep_duration_ms: the system sleep duration in ms, only valid
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* for STANDBY_WAKEUP_BY_STIMER wake up event.
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* gpio_active: for a GPIO pin to wake up the system by
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* goes high(1) or low(0)
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*
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* @retval None
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*/
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void standby_wakeup_event_add(uint32_t wakeup_event, uint32_t sleep_duration_ms, uint32_t gpio_active)
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{
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u32 i;
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u8 gpio_event;
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u8 gpio_en;
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u8 gpio_act;
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if (wakeup_event & STANDBY_WAKEUP_BY_STIMER) {
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DStandbyWakeupEvent.wakeup_event |= DSTBY_STIMER;
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DStandbyWakeupEvent.timer_duration = sleep_duration_ms;
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}
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#if 0
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if (wakeup_event & STANDBY_WAKEUP_BY_DS_TIMER) {
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DStandbyWakeupEvent.wakeup_event |= DSTBY_TIMER33;
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// TODO: Sleep Duration ?
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}
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#endif
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if (wakeup_event & STANDBY_WAKEUP_BY_NFC) {
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DStandbyWakeupEvent.wakeup_event |= DSTBY_NFC;
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}
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gpio_event = STANDBY_WAKEUP_BY_PA5;
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gpio_en = BIT0;
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gpio_act = BIT4;
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// Loop 4 to check 4 GPIO wake up event
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for (i=0;i<4;i++) {
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if (wakeup_event & gpio_event) {
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DStandbyWakeupEvent.wakeup_event |= DSTBY_GPIO;
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DStandbyWakeupEvent.gpio_option |= gpio_en;
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if (gpio_active) {
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// Active High
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DStandbyWakeupEvent.gpio_option |= gpio_act;
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}
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else {
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// Active Low
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DStandbyWakeupEvent.gpio_option &= ~gpio_act;
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}
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}
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gpio_event = gpio_event << 1;
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gpio_en = gpio_en << 1;
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gpio_act = gpio_act << 1;
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}
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}
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/**
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* @brief To delete a wake up event for wakeing up the system from the
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* deep standby power saving mode.
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*
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* @param wakeup_event: A bit map of wake up event. Available event:
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* STANDBY_WAKEUP_BY_STIMER
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* STANDBY_WAKEUP_BY_NFC
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* STANDBY_WAKEUP_BY_PA5 (GPIO)
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* STANDBY_WAKEUP_BY_PC7 (GPIO)
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* STANDBY_WAKEUP_BY_PD5 (GPIO)
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* STANDBY_WAKEUP_BY_PE3 (GPIO)
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* @retval None
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*/
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void standby_wakeup_event_del(uint32_t wakeup_event)
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{
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if (wakeup_event & STANDBY_WAKEUP_BY_STIMER) {
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DStandbyWakeupEvent.wakeup_event &= ~DSTBY_STIMER;
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}
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#if 0
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if (wakeup_event & STANDBY_WAKEUP_BY_DS_TIMER) {
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DStandbyWakeupEvent.wakeup_event &= ~DSTBY_TIMER33;
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}
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#endif
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if (wakeup_event & STANDBY_WAKEUP_BY_NFC) {
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DStandbyWakeupEvent.wakeup_event &= ~DSTBY_NFC;
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}
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if (wakeup_event & STANDBY_WAKEUP_BY_PA5) {
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DStandbyWakeupEvent.gpio_option &= ~BIT0;
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}
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if (wakeup_event & STANDBY_WAKEUP_BY_PC7) {
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DStandbyWakeupEvent.gpio_option &= ~BIT1;
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}
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if (wakeup_event & STANDBY_WAKEUP_BY_PD5) {
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DStandbyWakeupEvent.gpio_option &= ~BIT2;
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}
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if (wakeup_event & STANDBY_WAKEUP_BY_PE3) {
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DStandbyWakeupEvent.gpio_option &= ~BIT3;
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}
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if ((DStandbyWakeupEvent.gpio_option & 0x0f) == 0) {
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// All GPIO wake up pin are disabled
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DStandbyWakeupEvent.wakeup_event &= ~DSTBY_GPIO;
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}
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}
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/**
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* @brief To make the system entering the Deep Standby power saving.
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* The CPU, memory and part fo peripheral power is off when
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* entering deep standby power saving mode. The program needs
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* to be reload from the flash at system resume.
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*
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* @retval None
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*/
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void deepstandby_ex(void)
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{
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if ((DStandbyWakeupEvent.wakeup_event & (DSTBY_STIMER|DSTBY_NFC|DSTBY_GPIO)) == 0) {
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// error: no wakeup event was added, so skip the entering standby power saving
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return;
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}
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DeepStandby(DStandbyWakeupEvent.wakeup_event,
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DStandbyWakeupEvent.timer_duration, DStandbyWakeupEvent.gpio_option);
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}
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/**
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* @brief To make the system entering the Deep Sleep power saving mode.
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* The CPU, memory and peripheral power is off when entering
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* deep sleep power saving mode. The program needs to be reload
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* and all peripheral needs be re-configure when system resume.
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*
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* @param wakeup_event: A bit map of wake up event. Available event:
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* DSLEEP_WAKEUP_BY_TIMER
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* DSLEEP_WAKEUP_BY_GPIO
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* sleep_duration: the system sleep duration in ms, only valid
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* for DSLEEP_WAKEUP_BY_TIMER wake up event.
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*
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* @retval None
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*/
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void deepsleep_ex(uint32_t wakeup_event, uint32_t sleep_duration)
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{
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u8 wake_ev=0;
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if ((wakeup_event & DSLEEP_WAKEUP_BY_TIMER) && (sleep_duration > 0)) {
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// wake up by timeout
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wake_ev |= DS_TIMER33;
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}
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if (wakeup_event & DSLEEP_WAKEUP_BY_GPIO) {
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// wake up by GPIO pin goes high
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wake_ev |= DS_GPIO;
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}
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if (wake_ev == 0) {
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// error: No wake up event, skip entering deep sleep mode
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return;
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}
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DeepSleep (wake_ev, sleep_duration);
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}
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