circuitpython/ports/mimxrt/mpnimbleport.c
iabdalkader fc495240a6 mimxrt: Integrate Bluetooth support with NimBLE bindings.
This commit adds the necessary functions to get NimBLE working with the
mimxrt port.

Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
2023-08-31 23:42:10 +10:00

79 lines
3.0 KiB
C

/*
* 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
#define DEBUG_printf(...) // printf("mpnimbleport.c: " __VA_ARGS__)
#include "host/ble_hs.h"
#include "nimble/nimble_npl.h"
#include "extmod/mpbthci.h"
#include "extmod/modbluetooth.h"
#include "extmod/nimble/modbluetooth_nimble.h"
#include "extmod/nimble/hal/hal_uart.h"
#include "mpbthciport.h"
// Get any pending data from the UART and send it to NimBLE's HCI buffers.
// Any further processing by NimBLE will be run via its event queue.
void mp_bluetooth_hci_poll(void) {
if (mp_bluetooth_nimble_ble_state >= MP_BLUETOOTH_NIMBLE_BLE_STATE_WAITING_FOR_SYNC) {
// DEBUG_printf("mp_bluetooth_hci_poll_uart %d\n", mp_bluetooth_nimble_ble_state);
// Run any timers.
mp_bluetooth_nimble_os_callout_process();
// Process incoming UART data, and run events as they are generated.
mp_bluetooth_nimble_hci_uart_process(true);
// Run any remaining events (e.g. if there was no UART data).
mp_bluetooth_nimble_os_eventq_run_all();
}
if (mp_bluetooth_nimble_ble_state != MP_BLUETOOTH_NIMBLE_BLE_STATE_OFF) {
// Call this function again in 128ms to check for new events.
// TODO: improve this by only calling back when needed.
mp_bluetooth_hci_poll_in_ms(128);
}
}
// --- Port-specific helpers for the generic NimBLE bindings. -----------------
void mp_bluetooth_nimble_hci_uart_wfi(void) {
__WFI();
// This is called while NimBLE is waiting in ble_npl_sem_pend, i.e. waiting for an HCI ACK.
// Do not need to run events here (it must not invoke Python code), only processing incoming HCI data.
mp_bluetooth_nimble_hci_uart_process(false);
}
#endif // MICROPY_PY_BLUETOOTH && MICROPY_BLUETOOTH_NIMBLE