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98 lines
3.4 KiB
98 lines
3.4 KiB
#ifndef ZDATACHANNEL_H__
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#define ZDATACHANNEL_H__
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#include <stdbool.h>
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#include <stdint.h>
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#include "ble.h"
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#include "ble_link_ctx_manager.h"
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#include "ble_srv_common.h"
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#include "nrf_sdh_ble.h"
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#include "sdk_config.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**@brief Macro for defining a ble_nus instance.
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*
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* @param _name Name of the instance.
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* @param[in] _nus_max_clients Maximum number of NUS clients connected at a time.
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* @hideinitializer
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*/
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#define ZDATACHANNEL_DEF(_name, _ble_observer_prio, _nus_max_clients) \
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static zdatachannel_t _name; \
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NRF_SDH_BLE_OBSERVER(_name##_obs, _ble_observer_prio, zdatachannel_on_ble_evt, &_name)
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#define OPCODE_LENGTH 1
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#define HANDLE_LENGTH 2
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/**@brief Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */
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#if defined(NRF_SDH_BLE_GATT_MAX_MTU_SIZE) && (NRF_SDH_BLE_GATT_MAX_MTU_SIZE != 0)
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#define ZDATACHANNEL_MAX_DATA_LEN (NRF_SDH_BLE_GATT_MAX_MTU_SIZE - OPCODE_LENGTH - HANDLE_LENGTH)
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#else
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#define ZDATACHANNEL_MAX_DATA_LEN (BLE_GATT_MTU_SIZE_DEFAULT - OPCODE_LENGTH - HANDLE_LENGTH)
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#warning NRF_SDH_BLE_GATT_MAX_MTU_SIZE is not defined.
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#endif
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/**@brief Nordic UART Service event types. */
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typedef enum {
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ZDATACHANNEL_EVT_RX_DATA, /**< Data received. */
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} zdatachannel_evt_type_t;
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typedef struct zdatachannel_s zdatachannel_t;
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typedef struct {
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uint8_t const* p_data; /**< A pointer to the buffer with received data. */
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uint16_t length; /**< Length of received data. */
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} zdatachannel_evt_rx_data_t;
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typedef struct {
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zdatachannel_evt_type_t type; /**< Event type. */
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union {
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zdatachannel_evt_rx_data_t rx_data; /**< @ref ZDATACHANNEL_EVT_RX_DATA event data. */
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} params;
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} zdatachannel_evt_t;
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typedef void (*zdatachannel_data_handler_t)(zdatachannel_evt_t* p_evt);
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typedef struct {
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zdatachannel_data_handler_t data_handler;
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} zdatachannel_init_t;
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struct zdatachannel_s {
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uint8_t uuid_type; /**< UUID type for Nordic UART Service Base UUID. */
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uint16_t service_handle; /**< Handle of Nordic UART Service (as provided by the SoftDevice). */
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ble_gatts_char_handles_t cmd_tx_handles; /**< 指令发送句柄 */
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ble_gatts_char_handles_t cmd_rx_handles; /**< 指令接收句柄 */
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ble_gatts_char_handles_t datablock_tx_handles; /**< 数据块发送句柄 */
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zdatachannel_data_handler_t data_handler; /**< Event handler to be called for handling received data. */
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// 状态
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int16_t conn_handle;
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bool cmd_tx_channel_is_notification_enabled;
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bool datablock_tx_channel_is_notification_enabled;
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};
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uint32_t zdatachannel_init(zdatachannel_t* p_nus, zdatachannel_init_t const* p_nus_init);
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void zdatachannel_on_ble_evt(ble_evt_t const* p_ble_evt, void* p_context);
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bool zdatachannel_is_connected();
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uint32_t zdatachannel_data_send(uint8_t* p_data, uint16_t* p_length);
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static inline uint32_t zdatachannel_data_send2(uint8_t* p_data, uint16_t p_length){
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return zdatachannel_data_send(p_data, &p_length);
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}
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uint32_t zdatachannel_block_data_send(uint8_t* p_data, uint16_t* p_length);
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static inline uint32_t zdatachannel_block_data_send2(uint8_t* p_data, uint16_t p_length){
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return zdatachannel_block_data_send(p_data, &p_length);
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}
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uint32_t zdatachannel_last_rx_data_haspassed_s();
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#ifdef __cplusplus
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}
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#endif
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#endif // ZDATACHANNEL_H__
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/** @} */
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