micropython/ports/stm32/mpnimbleport.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Jim Mussared
* Copyright (c) 2020 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "py/runtime.h"
#include "py/mperrno.h"
#include "py/mphal.h"
#if MICROPY_PY_BLUETOOTH && MICROPY_BLUETOOTH_NIMBLE
#include "host/ble_hs.h"
#include "nimble/nimble_npl.h"
#include "extmod/mpbthci.h"
#include "extmod/nimble/modbluetooth_nimble.h"
#include "extmod/nimble/hal/hal_uart.h"
// This implements the Nimble "background task". It's called at PENDSV
// priority, either every 128ms or whenever there's UART data available.
// Because it's called via PENDSV, you can implicitly consider that it
// is surrounded by MICROPY_PY_BLUETOOTH_ENTER / MICROPY_PY_BLUETOOTH_EXIT.
void mp_bluetooth_hci_poll(void) {
if (mp_bluetooth_nimble_ble_state >= MP_BLUETOOTH_NIMBLE_BLE_STATE_WAITING_FOR_SYNC) {
// Ask NimBLE to process UART data.
mp_bluetooth_nimble_hci_uart_process();
// Run pending background operations and events, but only after HCI sync.
mp_bluetooth_nimble_os_callout_process();
mp_bluetooth_nimble_os_eventq_run_all();
}
}
// --- Port-specific helpers for the generic NimBLE bindings. -----------------
void mp_bluetooth_nimble_hci_uart_wfi(void) {
__WFI();
}
uint32_t mp_bluetooth_nimble_hci_uart_enter_critical(void) {
MICROPY_PY_BLUETOOTH_ENTER
return atomic_state;
}
void mp_bluetooth_nimble_hci_uart_exit_critical(uint32_t atomic_state) {
MICROPY_PY_BLUETOOTH_EXIT
}
#endif // MICROPY_PY_BLUETOOTH && MICROPY_BLUETOOTH_NIMBLE