61d1e4b01b
This changes stm32 from using PENDSV to run NimBLE to use the MicroPython scheduler instead. This allows Python BLE callbacks to be invoked directly (and therefore synchronously) rather than via the ringbuffer. The NimBLE UART HCI and event processing now happens in a scheduled task every 128ms. When RX IRQ idle events arrive, it will also schedule this task to improve latency. There is a similar change for the unix port where the background thread now queues the scheduled task. Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Jim Mussared
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* Copyright (c) 2020 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/runtime.h"
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#include "py/mperrno.h"
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#include "py/mphal.h"
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#if MICROPY_PY_BLUETOOTH && MICROPY_BLUETOOTH_NIMBLE
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#define DEBUG_printf(...) // printf("mpnimbleport.c: " __VA_ARGS__)
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#include "host/ble_hs.h"
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#include "nimble/nimble_npl.h"
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#include "extmod/mpbthci.h"
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#include "extmod/modbluetooth.h"
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#include "extmod/nimble/modbluetooth_nimble.h"
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#include "extmod/nimble/hal/hal_uart.h"
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// Get any pending data from the UART and send it to NimBLE's HCI buffers.
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// Any further processing by NimBLE will be run via its event queue.
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void mp_bluetooth_hci_poll(void) {
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if (mp_bluetooth_nimble_ble_state >= MP_BLUETOOTH_NIMBLE_BLE_STATE_WAITING_FOR_SYNC) {
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// DEBUG_printf("mp_bluetooth_hci_poll_uart %d\n", mp_bluetooth_nimble_ble_state);
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// Run any timers.
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mp_bluetooth_nimble_os_callout_process();
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// Process incoming UART data, and run events as they are generated.
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mp_bluetooth_nimble_hci_uart_process(true);
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// Run any remaining events (e.g. if there was no UART data).
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mp_bluetooth_nimble_os_eventq_run_all();
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}
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}
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// --- Port-specific helpers for the generic NimBLE bindings. -----------------
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void mp_bluetooth_nimble_hci_uart_wfi(void) {
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__WFI();
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// This is called while NimBLE is waiting in ble_npl_sem_pend, i.e. waiting for an HCI ACK.
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// Do not need to run events here (it must not invoke Python code), only processing incoming HCI data.
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mp_bluetooth_nimble_hci_uart_process(false);
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}
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#endif // MICROPY_PY_BLUETOOTH && MICROPY_BLUETOOTH_NIMBLE
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