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| author | Scott Shawcroft <scott@adafruit.com> | 2020-05-21 10:24:11 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-05-21 10:24:11 -0700 |
| commit | eea01c32b8c7727989774f0bb08a5efafc45911e (patch) | |
| tree | a78193a084a8772f3e98b19b918e3e45e5f75b53 /ports | |
| parent | edc5d8938e0360a61fcea03344d3c525d836048d (diff) | |
| parent | 67cf005ee545df6b1d6f2a4947c58d6c2afb0f51 (diff) | |
Merge pull request #2868 from xobs/fix-usb-sleep-nrf
Fix usb sleep for NRF
Diffstat (limited to 'ports')
| -rw-r--r-- | ports/nrf/peripherals/nrf/nvm.c | 2 | ||||
| -rw-r--r-- | ports/nrf/supervisor/port.c | 15 |
2 files changed, 16 insertions, 1 deletions
diff --git a/ports/nrf/peripherals/nrf/nvm.c b/ports/nrf/peripherals/nrf/nvm.c index 63b168f14..dc50e2eef 100644 --- a/ports/nrf/peripherals/nrf/nvm.c +++ b/ports/nrf/peripherals/nrf/nvm.c @@ -40,6 +40,8 @@ STATIC bool sd_is_enabled(void) { uint8_t sd_en = 0; + if (__get_PRIMASK()) + return false; (void) sd_softdevice_is_enabled(&sd_en); return sd_en; } diff --git a/ports/nrf/supervisor/port.c b/ports/nrf/supervisor/port.c index ea09115f7..36725293c 100644 --- a/ports/nrf/supervisor/port.c +++ b/ports/nrf/supervisor/port.c @@ -51,8 +51,11 @@ #include "common-hal/rtc/RTC.h" #include "common-hal/neopixel_write/__init__.h" +#include "shared-bindings/microcontroller/__init__.h" #include "shared-bindings/rtc/__init__.h" +#include "lib/tinyusb/src/device/usbd.h" + #ifdef CIRCUITPY_AUDIOBUSIO #include "common-hal/audiobusio/I2SOut.h" #endif @@ -264,7 +267,17 @@ void port_sleep_until_interrupt(void) { sd_app_evt_wait(); } else { // Call wait for interrupt ourselves if the SD isn't enabled. - __WFI(); + // Note that `wfi` should be called with interrupts disabled, + // to ensure that the queue is properly drained. The `wfi` + // instruction will returned as long as an interrupt is + // available, even though the actual handler won't fire until + // we re-enable interrupts. + common_hal_mcu_disable_interrupts(); + if (!tud_task_event_ready()) { + __DSB(); + __WFI(); + } + common_hal_mcu_enable_interrupts(); } } |