STM32: remove pm_unregister buttons. Initialize PM buttons only once
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4935 42af7a65-404d-4744-a932-0658087f49c3
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@ -810,10 +810,48 @@ Where <subdir> is one of the following:
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This is a configuration that is used to test STM32 power management, i.e.,
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to test that the board can go into lower and lower states of power usage
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as a result of inactivity. This configuration is based on the nsh2
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configuration with modifications for testing power management.
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configuration with modifications for testing power management. This
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configuration should provide some guideline for power management in your
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STM32 application.
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CONFIG_STM32_CODESOURCERYW=y : CodeSourcery under Windows
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CONFIG_PM_CUSTOMINIT and CONFIG_IDLE_CUSTOM are necessary parts of the
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PM configuration:
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CONFIG_PM_CUSTOMINIT=y
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CONFIG_PM_CUSTOMINIT moves the PM initialization from arch/arm/src/stm32/stm32_pminitialiaze.c
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to configs/stm3210-eval/src/up_pm.c. This allows us to support board-
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specific PM initialization.
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CONFIG_IDLE_CUSTOM=y
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The bulk of the PM activities occur in the IDLE loop. The IDLE loop is
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special because it is what runs when there is no other task running. Therefore
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when the IDLE executes, we can be assure that nothing else is going on; this
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is the ideal condition for doing reduced power management.
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The configuration CONFIG_IDLE_CUSTOM allows us to "steal" the normal STM32
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IDLE loop (of arch/arm/src/stm32/stm32_idle.c) and replace this with our own
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custom IDLE loop (at configs/stm3210-eval/src/up_idle.c).
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Here are some additional things to note in the configuration:
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CONFIG_PM_BUTTONS=y
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CONFIG_PM_BUTTONS enables button support for PM testing. Buttons can drive
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EXTI interrupts and EXTI interrrupts can be used to wakeup for certain reduced
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power modes (STOP mode). The use of the buttons here is for PM testing purposes
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only; buttons would normally be part the application code and CONFIG_PM_BUTTONS
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would not be defined.
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CONFIG_RTC_ALARM=y
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The RTC alarm is used to wake up from STOP mode and to transition to
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STANDBY mode. This used of the RTC alarm could conflict with other uses of
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the RTC alarm in your application.
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RIDE
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----
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This configuration builds a trivial bring-up binary. It is
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@ -473,6 +473,10 @@ CONFIG_IDLE_CUSTOM=y
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# Board/Application-Specific Power Management Configuration.
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# These settings are probably not meaningful outside of this configuration
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#
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# Button support can be built into the configs/stm3210e-eval/pm configuration
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# to support PM testing. These would not be part of a normal, operational
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# configuration.
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#
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CONFIG_PM_BUTTONS=y
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CONFIG_PM_IRQBUTTONS_MIN=0
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CONFIG_PM_IRQBUTTONS_MAX=7
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@ -317,18 +317,6 @@ void up_ledpminitialize(void);
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void up_pmbuttons(void);
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#endif
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/************************************************************************************
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* Name: up_unregisterbuttons
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*
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* Description:
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* Un-register button handlers
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*
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************************************************************************************/
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#if defined(CONFIG_PM) && defined(CONFIG_IDLE_CUSTOM) && defined(CONFIG_PM_BUTTONS)
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void up_unregisterbuttons(void);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_STM3210E_EVAL_SRC_STM3210E_INTERNAL_H */
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@ -150,41 +150,11 @@ static void up_idlepm(void)
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case PM_IDLE:
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{
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/* The wake-up event is really dependent upon the application
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* an resources provided by the application. However,
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* CONFIG_PM_BUTTONS may defined to support PM testing.
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*/
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#ifdef CONFIG_PM_BUTTONS
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/* Check if the buttons have already been registered */
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up_unregisterbuttons();
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/* Initialize the buttons to wake up the system from the idle
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* mode
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*/
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up_pmbuttons();
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#endif
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}
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break;
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case PM_STANDBY:
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{
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/* The wake-up event is really dependent upon the application
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* an resources provided by the application. However,
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* CONFIG_PM_BUTTONS may defined to support PM testing.
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*/
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#ifdef CONFIG_PM_BUTTONS
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/* Check if the buttons have already been registered */
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up_unregisterbuttons();
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/* Configure all the buttons as wakeup EXTI */
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up_pmbuttons();
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#endif
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#ifdef CONFIG_RTC_ALARM
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/* Configure the RTC alarm to Auto Wake the system */
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@ -93,6 +93,12 @@ void up_pminitialize(void)
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pm_initialize();
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#ifdef CONFIG_PM_BUTTONS
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/* Initialize the buttons to wake up the system from low power modes */
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up_pmbuttons();
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#endif
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/* Initialize the LED PM */
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up_ledpminitialize();
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@ -281,10 +281,6 @@ static void button_handler(int id, int irq)
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*/
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pm_activity(CONFIG_PM_BUTTON_ACTIVITY);
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/* Un-register button handlers */
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up_unregisterbuttons();
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}
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#if MIN_BUTTON < 1
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@ -387,23 +383,4 @@ void up_pmbuttons(void)
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#endif
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}
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/****************************************************************************
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* Name: up_unregisterbuttons
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*
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* Description:
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* Un-register button handlers
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*
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****************************************************************************/
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void up_unregisterbuttons(void)
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{
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#ifdef CONFIG_ARCH_IRQBUTTONS
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int i;
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for (i = CONFIG_PM_IRQBUTTONS_MIN; i <= CONFIG_PM_IRQBUTTONS_MAX; i++)
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{
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(void)up_irqbutton(i, NULL);
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}
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#endif
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}
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#endif /* defined(CONFIG_PM) && defined(CONFIG_IDLE_CUSTOM) && defined(CONFIG_PM_BUTTONS) */
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