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Posted to commits@mynewt.apache.org by GitBox <gi...@apache.org> on 2020/04/17 14:30:13 UTC

[GitHub] [mynewt-core] apache-mynewt-bot removed a comment on issue #2224: add functionality to allow low power operation for STM32L1xx

apache-mynewt-bot removed a comment on issue #2224: add functionality to allow low power operation for STM32L1xx
URL: https://github.com/apache/mynewt-core/pull/2224#issuecomment-606555366
 
 
   
   <!-- style-bot -->
   
   ## Style check summary
   
   ### Our coding style is [here!](https://github.com/apache/mynewt-core/blob/master/CODING_STANDARDS.md)
   
   
   #### hw/mcu/stm/stm32l1xx/src/hal_power_mgnt.c
   <details>
   
   ```diff
   @@ -35,8 +35,8 @@
    void stm32_tickless_start(uint32_t timeMS);
    
    /* Put MCU  in lowest power stop state, exit only via POR or reset pin */
   -void 
   -hal_mcu_halt() 
   +void
   +hal_mcu_halt()
    {
    
        /* all interupts and exceptions off */
   @@ -49,7 +49,7 @@
    
        while (1) {
    
   -        /*Disables the Power Voltage Detector(PVD) */                
   +        /*Disables the Power Voltage Detector(PVD) */
            HAL_PWR_DisablePVD( );
            /* Enable Ultra low power mode */
            HAL_PWREx_EnableUltraLowPower( );
   @@ -61,13 +61,13 @@
        }
    }
    
   -void 
   +void
    stm32_tick_init(uint32_t os_ticks_per_sec, int prio)
    {
        /* Even for tickless we use SYSTICK for normal tick.*/
        /* nb of ticks per seconds is hardcoded in HAL_InitTick(..) to have 1ms/tick */
        assert(os_ticks_per_sec == OS_TICKS_PER_SEC);
   -    
   +
        volatile uint32_t reload_val;
    
        /*Reload Value = SysTick Counter Clock (Hz) x  Desired Time base (s) */
   @@ -77,8 +77,8 @@
        SysTick->VAL = 0;
    
        /* CLKSOURCE : 1 -> HCLK, 0-> AHB Clock (which is HCLK/8). Use HCLK, as this is the value of SystemCoreClock as used above */
   -    SysTick->CTRL = (SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_TICKINT_Msk | SysTick_CTRL_ENABLE_Msk);  
   -        
   +    SysTick->CTRL = (SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_TICKINT_Msk | SysTick_CTRL_ENABLE_Msk);
   +
        /* Set the system tick priority */
        NVIC_SetPriority(SysTick_IRQn, prio);
    
   @@ -102,7 +102,7 @@
    
    }
    
   -void 
   +void
    stm32_tickless_start(uint32_t timeMS)
    {
    
   @@ -116,10 +116,10 @@
        CLEAR_BIT(SysTick->CTRL,SysTick_CTRL_TICKINT_Msk);
    }
    
   -void 
   +void
    stm32_tickless_stop(uint32_t timeMS)
    {
   -    
   +
        /* add asleep duration to tick counter : how long we should have slept for minus any remaining time */
        volatile uint32_t asleep_ms = hal_rtc_get_elapsed_wakeup_timer();
        volatile int asleep_ticks = os_time_ms_to_ticks32(asleep_ms);
   @@ -133,10 +133,10 @@
        NVIC_EnableIRQ(SysTick_IRQn);
        /* reenable SysTick */
        SET_BIT(SysTick->CTRL,SysTick_CTRL_TICKINT_Msk);
   -    
   -}
   -
   -void 
   +
   +}
   +
   +void
    stm32_power_enter(int power_mode, uint32_t durationMS)
    {
        /* if sleep time was less than MIN_TICKS, it is 0. Just do usual WFI and systick will wake us in 1ms */
   @@ -147,7 +147,7 @@
    
        if (durationMS >= 32000) {
            /* 32 sec is the largest value of wakeuptimer   leave 100ms slack */
   -        durationMS = (32000 - 100); 
   +        durationMS = (32000 - 100);
        }
    
        /* begin tickless */
   @@ -158,7 +158,7 @@
        switch (power_mode) {
        case HAL_BSP_POWER_OFF:
        case HAL_BSP_POWER_DEEP_SLEEP: {
   -        /*Disables the Power Voltage Detector(PVD) */                
   +        /*Disables the Power Voltage Detector(PVD) */
            HAL_PWR_DisablePVD( );
            /* Enable Ultra low power mode */
            HAL_PWREx_EnableUltraLowPower( );
   @@ -172,7 +172,7 @@
        }
        case HAL_BSP_POWER_SLEEP: {
    
   -        /*Disables the Power Voltage Detector(PVD) */                
   +        /*Disables the Power Voltage Detector(PVD) */
            HAL_PWR_DisablePVD( );
            /* Enable Ultra low power mode */
            HAL_PWREx_EnableUltraLowPower( );
   @@ -191,11 +191,11 @@
        }
        case HAL_BSP_POWER_ON:
        default: {
   -        
   -        break;
   -    }
   -    }
   -    
   +
   +        break;
   +    }
   +    }
   +
    #if MYNEWT_VAL(OS_TICKLESS_RTC)
        /* exit tickless low power mode */
        stm32_tickless_stop(durationMS);
   ```
   
   </details>
   
   #### hw/mcu/stm/stm32l1xx/src/rtc_utils.c
   <details>
   
   ```diff
   @@ -1,13 +1,13 @@
    /**
     * Copyright 2019 Wyres
   - * Licensed under the Apache License, Version 2.0 (the "License"); 
   - * you may not use this file except in compliance with the License. 
   + * Licensed under the Apache License, Version 2.0 (the "License");
   + * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *    http://www.apache.org/licenses/LICENSE-2.0
   - * Unless required by applicable law or agreed to in writing, 
   - * software distributed under the License is distributed on 
   - * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
   - * either express or implied. See the License for the specific 
   + * Unless required by applicable law or agreed to in writing,
   + * software distributed under the License is distributed on
   + * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   + * either express or implied. See the License for the specific
     * language governing permissions and limitations under the License.
     */
    
   @@ -81,13 +81,13 @@
    
    
    /*!
   - * RTC timer context 
   + * RTC timer context
     */
    typedef struct {
        uint32_t Time;                  /* Reference time­ */
        RTC_TimeTypeDef CalendarTime;   /* Reference time in calendar format */
        RTC_DateTypeDef CalendarDate;   /* Reference date in calendar format */
   -}RtcTimerContext_t;
   +} RtcTimerContext_t;
    
    
    /*!
   @@ -95,7 +95,7 @@
     */
    static RTC_HandleTypeDef RtcHandle = {
        .Instance = NULL,
   -    .Init = { 
   +    .Init = {
            .HourFormat = 0,
            .AsynchPrediv = 0,
            .SynchPrediv = 0,
   @@ -116,10 +116,10 @@
    
    
    /**
   -  * @brief  This function handles  WAKE UP TIMER  interrupt request.
   -  * @retval None
   -  */
   -void 
   + * @brief  This function handles  WAKE UP TIMER  interrupt request.
   + * @retval None
   + */
   +void
    RTC_WKUP_IRQHandler(void)
    {
        HAL_RTCEx_WakeUpTimerIRQHandler(&RtcHandle);
   @@ -131,29 +131,29 @@
    #endif
    
    /**
   -  * @brief  This function handles  ALARM (A&B)  interrupt request.
   -  * @retval None
   -  */
   -void 
   + * @brief  This function handles  ALARM (A&B)  interrupt request.
   + * @retval None
   + */
   +void
    RTC_Alarm_IRQHandler(void)
    {
        HAL_RTC_AlarmIRQHandler(&RtcHandle);
    }
    
    /**
   -  * @brief  Alarm A callback.
   -  * @param  hrtc: pointer to a RTC_HandleTypeDef structure that contains
   -  *                the configuration information for RTC.
   -  * @retval None
   -  */
   -void 
   + * @brief  Alarm A callback.
   + * @param  hrtc: pointer to a RTC_HandleTypeDef structure that contains
   + *                the configuration information for RTC.
   + * @retval None
   + */
   +void
    HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
    {
    
    }
    
    
   -void 
   +void
    hal_rtc_init(RTC_DateTypeDef *date, RTC_TimeTypeDef *time)
    {
        int rc;
   @@ -161,7 +161,7 @@
        NVIC_DisableIRQ(RTC_WKUP_IRQn);
        NVIC_DisableIRQ(RTC_Alarm_IRQn);
        NVIC_DisableIRQ(TAMPER_STAMP_IRQn);
   -        
   +
        RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
    
        __HAL_RCC_RTC_ENABLE( );
   @@ -169,8 +169,7 @@
        PeriphClkInit.PeriphClockSelection |= RCC_PERIPHCLK_RTC;
        PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
    
   -    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
   -    {
   +    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
            assert(0);
        }
    
   @@ -181,7 +180,7 @@
        RtcHandle.Init.OutPut = RTC_OUTPUT_DISABLE;
        RtcHandle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
        RtcHandle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
   -    
   +
        rc = HAL_RTC_Init(&RtcHandle);
        assert(rc == 0);
    
   @@ -196,7 +195,7 @@
            date = &default_date;
        }
    
   -    if (time==NULL) {
   +    if (time == NULL) {
            RTC_TimeTypeDef default_time = {
                .Hours = 0,
                .Minutes = 0,
   @@ -206,18 +205,18 @@
                .StoreOperation = RTC_STOREOPERATION_RESET,
                .DayLightSaving = RTC_DAYLIGHTSAVING_NONE,
            };
   -        
   +
            time = &default_time;
        }
    
        HAL_RTC_SetDate(&RtcHandle, date, RTC_FORMAT_BIN);
        HAL_RTC_SetTime(&RtcHandle, time, RTC_FORMAT_BIN);
    
   -    // Enable Direct Read of the calendar registers (not through Shadow registers)
   +    /* Enable Direct Read of the calendar registers (not through Shadow registers) */
        HAL_RTCEx_DisableBypassShadow(&RtcHandle);
   -    
   -#ifdef RTC_ALARM_TEST   
   -    //setup alarm
   +
   +#ifdef RTC_ALARM_TEST
   +    /*setup alarm */
        RtcAlarm.AlarmTime.Hours = 0;
        RtcAlarm.AlarmTime.Minutes = 0;
        RtcAlarm.AlarmTime.Seconds = 1;
   @@ -251,30 +250,30 @@
        NVIC_SetVector(RTC_WKUP_IRQn, (uint32_t)RTC_WKUP_IRQHandler);
        /*Enable IRQ now forever */
        NVIC_EnableIRQ(RTC_WKUP_IRQn);
   -    
   +
        /*Initialises start value of the follower*/
   -    WakeUpTimer_Settings.follower_counter_start = 
   +    WakeUpTimer_Settings.follower_counter_start =
            (FOLLOWER_PRESCALER_S - (uint32_t)((RtcHandle.Instance->SSR) & RTC_SSR_SS));
    
        assert(rc == 0);
   -    
   -}
   -
   -
   -void 
   +
   +}
   +
   +
   +void
    hal_rtc_enable_wakeup(uint32_t time_ms)
   -{    
   +{
        int rc;
    
        /* WARNING : works only with time_ms =< 32 s (MAX_RTC_PERIOD_MSEC)
   -                (due to the follower which is currently 
   +                (due to the follower which is currently
                    unable to setup lower resolution)
   -       
   -       TODO : improve setup of follower's resolution 
   -
   -       NOTE : for time_ms > 32 follower could be used as is by using 
   +
   +       TODO : improve setup of follower's resolution
   +
   +       NOTE : for time_ms > 32 follower could be used as is by using
                  ALARM features (assuming RTC clocking very different of 1Hz)
   -    */
   +     */
    
    
        /*
   @@ -289,13 +288,13 @@
         * – from 1s to 18 hours when WUCKSEL [2:1] = 10
         * – and from around 18h to 36h when WUCKSEL[2:1] = 11
         */
   -    
   +
    
        if (time_ms < (uint32_t)(MAX_RTC_PERIOD_MSEC)) {
            /* 0 < time_ms < 32 sec */
            WakeUpTimer_Settings.clk_srce_sel = RTC_WAKEUPCLOCK_RTCCLK_DIV16;
            WakeUpTimer_Settings.autoreload_timer = (uint32_t)(time_ms / (MIN_RTC_PERIOD_MSEC));
   -    } else if (time_ms < (uint32_t)(18 * 60 * 60 * 1000)) {   
   +    } else if (time_ms < (uint32_t)(18 * 60 * 60 * 1000)) {
            /* 32 sec < time_ms < 18h */
            WakeUpTimer_Settings.clk_srce_sel = RTC_WAKEUPCLOCK_CK_SPRE_16BITS;
            /* load counter */
   @@ -305,7 +304,7 @@
        } else {
            /* 18h < time_ms < 36h */
            /*
   -         * TODO : setup wakeup with ALARM feature instead of WAKEUP     
   +         * TODO : setup wakeup with ALARM feature instead of WAKEUP
             */
            WakeUpTimer_Settings.clk_srce_sel = RTC_WAKEUPCLOCK_CK_SPRE_17BITS;
            WakeUpTimer_Settings.autoreload_timer = (time_ms / 1000);
   @@ -313,19 +312,19 @@
        }
    
        /* Setting the Wake up time */
   -    rc = HAL_RTCEx_SetWakeUpTimer_IT(&RtcHandle, (uint32_t)WakeUpTimer_Settings.autoreload_timer, 
   +    rc = HAL_RTCEx_SetWakeUpTimer_IT(&RtcHandle, (uint32_t)WakeUpTimer_Settings.autoreload_timer,
                                         WakeUpTimer_Settings.clk_srce_sel);
        assert (rc == HAL_OK);
    
   -    WakeUpTimer_Settings.follower_counter_start = 
   +    WakeUpTimer_Settings.follower_counter_start =
            (FOLLOWER_PRESCALER_S - (uint32_t)((RtcHandle.Instance->SSR) & RTC_SSR_SS));
    }
    
   -uint32_t 
   +uint32_t
    hal_rtc_get_elapsed_wakeup_timer(void)
    {
        volatile uint16_t time_ms, follower_counter_elapsed;
   -    
   +
        /*RTC_SSR is a downcounter*/
        follower_counter_elapsed = (FOLLOWER_PRESCALER_S - (uint16_t)((RtcHandle.Instance->SSR) & RTC_SSR_SS));
    
   @@ -339,18 +338,18 @@
    
        /*convert it into ms*/
        time_ms = ((follower_counter_elapsed * 1000) / DIVIDED_FOLLOWER_FREQUENCY);
   -    
   +
        return (uint32_t)time_ms;
    
    }
    
   -void 
   +void
    hal_rtc_disable_wakeup(void)
    {
        HAL_RTCEx_DeactivateWakeUpTimer(&RtcHandle);
   -    
   +
        /* In order to take into account the pending IRQ and clear      */
   -    /* wakeup flags (EXTI->PR & RTC_EXTI_LINE_WAKEUPTIMER_EVENT)    */    
   +    /* wakeup flags (EXTI->PR & RTC_EXTI_LINE_WAKEUPTIMER_EVENT)    */
        /* after reentring in critical region : DO NOT DISABLE IRQ !!!  */
        /* IRQ will remain enabled forever                              */
        /* NVIC_DisableIRQ(RTC_WKUP_IRQn); */
   ```
   
   </details>
   
   #### hw/mcu/stm/stm32_common/src/hal_os_tick.c
   <details>
   
   ```diff
   @@ -48,12 +48,12 @@
    extern void stm32_power_enter(int power_mode, uint32_t durationMS);
    extern void stm32_tick_init(uint32_t os_ticks_per_sec, int prio);
    #else
   -static void 
   -stm32_tick_init(uint32_t os_ticks_per_sec, int prio) 
   +static void
   +stm32_tick_init(uint32_t os_ticks_per_sec, int prio)
    {
        /*nb of ticks per seconds is hardcoded in HAL_InitTick(..) to have 1ms/tick */
        assert(os_ticks_per_sec == OS_TICKS_PER_SEC);
   -    
   +
        uint32_t reload_val;
    
        reload_val = ((uint64_t)SystemCoreClock / os_ticks_per_sec) - 1;
   @@ -78,7 +78,7 @@
    
    }
    
   -static void 
   +static void
    stm32_power_enter(int power_mode, uint32_t durationMS)
    {
        __DSB();
   @@ -97,7 +97,7 @@
        OS_ASSERT_CRITICAL();
    
        /* if < MIN_TICKS, then just leave standard SYSTICK and WFI to and wakeup in 1ms */
   -    if (ticks == 0) { 
   +    if (ticks == 0) {
            __DSB();
            __WFI();
            return;
   ```
   
   </details>

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