ed14435a8e
Previously the interaction between the different layers of the Bluetooth stack was different on each port and each stack. This commit defines common interfaces between them and implements them for cyw43, btstack, nimble, stm32, unix.
108 lines
3.4 KiB
C
108 lines
3.4 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) 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_BTSTACK
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#include "lib/btstack/src/btstack.h"
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#include "lib/btstack/platform/embedded/btstack_run_loop_embedded.h"
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#include "lib/btstack/platform/embedded/hal_cpu.h"
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#include "lib/btstack/platform/embedded/hal_time_ms.h"
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#include "extmod/mpbthci.h"
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#include "extmod/btstack/btstack_hci_uart.h"
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#include "extmod/btstack/modbluetooth_btstack.h"
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// The IRQ functionality in btstack_run_loop_embedded.c is not used, so the
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// following three functions are empty.
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void hal_cpu_disable_irqs(void) {
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}
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void hal_cpu_enable_irqs(void) {
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}
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void hal_cpu_enable_irqs_and_sleep(void) {
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}
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uint32_t hal_time_ms(void) {
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return mp_hal_ticks_ms();
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}
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STATIC const hci_transport_config_uart_t hci_transport_config_uart = {
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HCI_TRANSPORT_CONFIG_UART,
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MICROPY_HW_BLE_UART_BAUDRATE,
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3000000,
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0,
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NULL,
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};
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void mp_bluetooth_hci_poll(void) {
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if (mp_bluetooth_btstack_state == MP_BLUETOOTH_BTSTACK_STATE_OFF) {
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return;
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}
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// Process uart data.
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if (mp_bluetooth_btstack_state != MP_BLUETOOTH_BTSTACK_STATE_HALTING) {
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mp_bluetooth_btstack_hci_uart_process();
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}
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// Call the BTstack run loop.
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btstack_run_loop_embedded_execute_once();
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}
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void mp_bluetooth_btstack_port_init(void) {
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static bool run_loop_init = false;
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if (!run_loop_init) {
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run_loop_init = true;
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btstack_run_loop_init(btstack_run_loop_embedded_get_instance());
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} else {
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btstack_run_loop_embedded_get_instance()->init();
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}
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// hci_dump_open(NULL, HCI_DUMP_STDOUT);
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const hci_transport_t *transport = hci_transport_h4_instance(&mp_bluetooth_btstack_hci_uart_block);
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hci_init(transport, &hci_transport_config_uart);
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// TODO: Probably not necessary for BCM (we have our own firmware loader in the cyw43 driver),
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// but might be worth investigating for other controllers in the future.
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// hci_set_chipset(btstack_chipset_bcm_instance());
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}
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void mp_bluetooth_btstack_port_deinit(void) {
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hci_power_control(HCI_POWER_OFF);
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hci_close();
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}
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void mp_bluetooth_btstack_port_start(void) {
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hci_power_control(HCI_POWER_ON);
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}
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#endif // MICROPY_PY_BLUETOOTH && MICROPY_BLUETOOTH_BTSTACK
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