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Address wake from sleep instability (#11450)

* resolve race condition between suspend and wake in LUFA

* avoid multiple calls to suspend_power_down() / suspend_wakeup_init()

* Remove duplicate suspend_power_down_kb() call

* pause on wakeup to wait for USB state to settle

* need the repeated suspend_power_down() (that's where the sleep is)

* more efficient implementation

* fine tune the pause after sending wakeup

* speculative chibios version of pause-after-wake

* make wakeup delay configurable, and adjust value

* better location for wakeup delay
This commit is contained in:
Joshua Diamond 2021-02-01 19:12:41 -05:00 committed by GitHub
parent 85079d6a2e
commit 9a4618b05b
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 37 additions and 5 deletions

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@ -12,3 +12,7 @@ void suspend_wakeup_init_user(void);
void suspend_wakeup_init_kb(void);
void suspend_power_down_user(void);
void suspend_power_down_kb(void);
#ifndef USB_SUSPEND_WAKEUP_DELAY
# define USB_SUSPEND_WAKEUP_DELAY 200
#endif