117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2020 Jim Mussared
|
|
*
|
|
* 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 <pthread.h>
|
|
#include <unistd.h>
|
|
|
|
#include "py/runtime.h"
|
|
#include "py/mperrno.h"
|
|
#include "py/mphal.h"
|
|
|
|
#if MICROPY_PY_BLUETOOTH && MICROPY_BLUETOOTH_BTSTACK && MICROPY_BLUETOOTH_BTSTACK_USB
|
|
|
|
#include "lib/btstack/src/btstack.h"
|
|
#include "lib/btstack/platform/embedded/btstack_run_loop_embedded.h"
|
|
#include "lib/btstack/platform/embedded/hal_cpu.h"
|
|
#include "lib/btstack/platform/embedded/hal_time_ms.h"
|
|
|
|
#include "extmod/btstack/modbluetooth_btstack.h"
|
|
|
|
#include "mpbtstackport.h"
|
|
|
|
#if !MICROPY_PY_THREAD
|
|
#error Unix btstack requires MICROPY_PY_THREAD
|
|
#endif
|
|
|
|
STATIC const useconds_t USB_POLL_INTERVAL_US = 1000;
|
|
|
|
void mp_bluetooth_btstack_port_init_usb(void) {
|
|
// MICROPYBTUSB can be a ':'' or '-' separated port list.
|
|
char *path = getenv("MICROPYBTUSB");
|
|
if (path != NULL) {
|
|
uint8_t usb_path[7] = {0};
|
|
size_t usb_path_len = 0;
|
|
|
|
while (usb_path_len < MP_ARRAY_SIZE(usb_path)) {
|
|
char *delimiter;
|
|
usb_path[usb_path_len++] = strtol(path, &delimiter, 16);
|
|
if (!delimiter || (*delimiter != ':' && *delimiter != '-')) {
|
|
break;
|
|
}
|
|
path = delimiter + 1;
|
|
}
|
|
|
|
hci_transport_usb_set_path(usb_path_len, usb_path);
|
|
}
|
|
|
|
hci_init(hci_transport_usb_instance(), NULL);
|
|
}
|
|
|
|
STATIC pthread_t bstack_thread_id;
|
|
|
|
void mp_bluetooth_btstack_port_deinit(void) {
|
|
hci_power_control(HCI_POWER_OFF);
|
|
|
|
// Wait for the poll loop to terminate when the state is set to OFF.
|
|
pthread_join(bstack_thread_id, NULL);
|
|
}
|
|
|
|
|
|
// Provided by mpbstackport_common.c.
|
|
extern bool mp_bluetooth_hci_poll(void);
|
|
|
|
STATIC void *btstack_thread(void *arg) {
|
|
(void)arg;
|
|
hci_power_control(HCI_POWER_ON);
|
|
|
|
// modbluetooth_btstack.c will have set the state to STARTING before
|
|
// calling mp_bluetooth_btstack_port_start.
|
|
// This loop will terminate when the HCI_POWER_OFF above results
|
|
// in modbluetooth_btstack.c setting the state back to OFF.
|
|
// Or, if a timeout results in it being set to TIMEOUT.
|
|
|
|
while (true) {
|
|
if (!mp_bluetooth_hci_poll()) {
|
|
break;
|
|
}
|
|
|
|
// The USB transport schedules events to the run loop at 1ms intervals,
|
|
// and the implementation currently polls rather than selects.
|
|
usleep(USB_POLL_INTERVAL_US);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void mp_bluetooth_btstack_port_start(void) {
|
|
// Create a thread to run the btstack loop.
|
|
pthread_attr_t attr;
|
|
pthread_attr_init(&attr);
|
|
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
|
pthread_create(&bstack_thread_id, &attr, &btstack_thread, NULL);
|
|
}
|
|
|
|
#endif // MICROPY_PY_BLUETOOTH && MICROPY_BLUETOOTH_BTSTACK && MICROPY_BLUETOOTH_BTSTACK_USB
|