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// SPDX-License-Identifier: GPL-2.0
#ifndef QT_BLE_H
#define QT_BLE_H
#include <stddef.h>
#include "core/libdivecomputer.h"
#include <QVector>
#include <QLowEnergyController>
#include <QEventLoop>
#define HW_OSTC_BLE_DATA_RX 0
#define HW_OSTC_BLE_DATA_TX 1
#define HW_OSTC_BLE_CREDITS_RX 2
#define HW_OSTC_BLE_CREDITS_TX 3
class BLEObject : public QObject
{
Q_OBJECT
public:
BLEObject(QLowEnergyController *c, device_data_t *);
~BLEObject();
inline void set_timeout(int value) { timeout = value; }
dc_status_t write(const void* data, size_t size, size_t *actual);
dc_status_t read(void* data, size_t size, size_t *actual);
inline dc_status_t get_name(char *res, size_t size)
{
if (!device->btname) return DC_STATUS_UNSUPPORTED;
strncpy(res, device->btname, size);
return DC_STATUS_SUCCESS;
}
dc_status_t poll(int timeout);
inline QLowEnergyService *preferredService() { return preferred; }
inline int descriptorWritten() { return desc_written; }
dc_status_t select_preferred_service(void);
public slots:
void addService(const QBluetoothUuid &newService);
void serviceStateChanged(QLowEnergyService::ServiceState s);
void characteristcStateChanged(const QLowEnergyCharacteristic &c, const QByteArray &value);
void characteristicWritten(const QLowEnergyCharacteristic &c, const QByteArray &value);
void writeCompleted(const QLowEnergyDescriptor &d, const QByteArray &value);
dc_status_t setupHwTerminalIo(const QList<QLowEnergyCharacteristic> &allC);
dc_status_t setHwCredit(unsigned int c);
private:
QVector<QLowEnergyService *> services;
QLowEnergyController *controller = nullptr;
QLowEnergyService *preferred = nullptr;
QList<QByteArray> receivedPackets;
bool isCharacteristicWritten;
device_data_t *device;
unsigned int hw_credit = 0;
unsigned int desc_written = 0;
int timeout;
QList<QUuid> hwAllCharacteristics = {
"{00000001-0000-1000-8000-008025000000}", // HW_OSTC_BLE_DATA_RX
"{00000002-0000-1000-8000-008025000000}", // HW_OSTC_BLE_DATA_TX
"{00000003-0000-1000-8000-008025000000}", // HW_OSTC_BLE_CREDITS_RX
"{00000004-0000-1000-8000-008025000000}" // HW_OSTC_BLE_CREDITS_TX
};
};
extern "C" {
dc_status_t qt_ble_open(void **io, dc_context_t *context, const char *devaddr, device_data_t *user_device);
dc_status_t qt_ble_set_timeout(void *io, int timeout);
dc_status_t qt_ble_poll(void *io, int timeout);
dc_status_t qt_ble_read(void *io, void* data, size_t size, size_t *actual);
dc_status_t qt_ble_write(void *io, const void* data, size_t size, size_t *actual);
dc_status_t qt_ble_ioctl(void *io, unsigned int request, void *data, size_t size);
dc_status_t qt_ble_close(void *io);
}
#endif
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