serial_service.h

#pragma once
 
#include <stdint.h>
#include <stdbool.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* 
 * Serial service. Implements RPC over BLE, with flow control.
 */
 
#define BLE_SVC_SERIAL_DATA_LEN_MAX       (486)
#define BLE_SVC_SERIAL_CHAR_VALUE_LEN_MAX (243)
 
typedef enum {
    SerialServiceEventTypeDataReceived,
    SerialServiceEventTypeDataSent,
    SerialServiceEventTypesBleResetRequest,
} SerialServiceEventType;
 
typedef struct {
    uint8_t* buffer;
    uint16_t size;
} SerialServiceData;
 
typedef struct {
    SerialServiceEventType event;
    SerialServiceData data;
} SerialServiceEvent;
 
typedef uint16_t (*SerialServiceEventCallback)(SerialServiceEvent event, void* context);
 
typedef struct BleServiceSerial BleServiceSerial;
 
BleServiceSerial* ble_svc_serial_start(void);
 
void ble_svc_serial_stop(BleServiceSerial* service);
 
void ble_svc_serial_set_callbacks(
    BleServiceSerial* service,
    uint16_t buff_size,
    SerialServiceEventCallback callback,
    void* context);
 
void ble_svc_serial_set_rpc_active(BleServiceSerial* service, bool active);
 
void ble_svc_serial_notify_buffer_is_empty(BleServiceSerial* service);
 
bool ble_svc_serial_update_tx(BleServiceSerial* service, uint8_t* data, uint16_t data_len);
 
#ifdef __cplusplus
}
#endif