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@ -37,84 +37,65 @@ |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include "sdk_common.h" |
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#if 1 |
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#if NRF_MODULE_ENABLED(BLE_NUS_C) |
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#include <stdlib.h> |
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#include "app_error.h" |
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#include "ble.h" |
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#include "zble_nus_c.h" |
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#include "ble_gattc.h" |
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#include "ble_nus_c.h" |
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#include "ble_srv_common.h" |
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#include "app_error.h" |
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#define NRF_LOG_MODULE_NAME ble_nus_c |
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#include "nrf_log.h" |
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NRF_LOG_MODULE_REGISTER(); |
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/**@brief Function for intercepting the errors of GATTC and the BLE GATT Queue. |
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* |
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* @param[in] nrf_error Error code. |
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* @param[in] p_ctx Parameter from the event handler. |
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* @param[in] conn_handle Connection handle. |
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*/ |
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static void gatt_error_handler(uint32_t nrf_error, |
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void * p_ctx, |
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uint16_t conn_handle) |
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{ |
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ble_nus_c_t * p_ble_nus_c = (ble_nus_c_t *)p_ctx; |
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static void gatt_error_handler(uint32_t nrf_error, void *p_ctx, uint16_t conn_handle) { |
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ble_nus_c_t *p_ble_nus_c = (ble_nus_c_t *)p_ctx; |
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NRF_LOG_DEBUG("A GATT Client error has occurred on conn_handle: 0X%X", conn_handle); |
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NRF_LOG_DEBUG("A GATT Client error has occurred on conn_handle: 0X%X", conn_handle); |
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if (p_ble_nus_c->error_handler != NULL) |
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{ |
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p_ble_nus_c->error_handler(nrf_error); |
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} |
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if (p_ble_nus_c->error_handler != NULL) { |
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p_ble_nus_c->error_handler(nrf_error); |
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} |
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} |
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void ble_nus_c_on_db_disc_evt(ble_nus_c_t *p_ble_nus_c, ble_db_discovery_evt_t *p_evt) { |
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ble_nus_c_evt_t nus_c_evt; |
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memset(&nus_c_evt, 0, sizeof(ble_nus_c_evt_t)); |
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ble_gatt_db_char_t *p_chars = p_evt->params.discovered_db.charateristics; |
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// Check if the NUS was discovered. |
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if ((p_evt->evt_type == BLE_DB_DISCOVERY_COMPLETE) && (p_evt->params.discovered_db.srv_uuid.uuid == BLE_UUID_NUS_SERVICE) && (p_evt->params.discovered_db.srv_uuid.type == p_ble_nus_c->uuid_type)) { |
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for (uint32_t i = 0; i < p_evt->params.discovered_db.char_count; i++) { |
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switch (p_chars[i].characteristic.uuid.uuid) { |
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case BLE_UUID_NUS_RX_CHARACTERISTIC: |
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nus_c_evt.handles.nus_rx_handle = p_chars[i].characteristic.handle_value; |
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break; |
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case BLE_UUID_NUS_TX_CHARACTERISTIC: |
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nus_c_evt.handles.nus_tx_handle = p_chars[i].characteristic.handle_value; |
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nus_c_evt.handles.nus_tx_cccd_handle = p_chars[i].cccd_handle; |
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break; |
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void ble_nus_c_on_db_disc_evt(ble_nus_c_t * p_ble_nus_c, ble_db_discovery_evt_t * p_evt) |
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{ |
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ble_nus_c_evt_t nus_c_evt; |
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memset(&nus_c_evt,0,sizeof(ble_nus_c_evt_t)); |
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ble_gatt_db_char_t * p_chars = p_evt->params.discovered_db.charateristics; |
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// Check if the NUS was discovered. |
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if ( (p_evt->evt_type == BLE_DB_DISCOVERY_COMPLETE) |
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&& (p_evt->params.discovered_db.srv_uuid.uuid == BLE_UUID_NUS_SERVICE) |
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&& (p_evt->params.discovered_db.srv_uuid.type == p_ble_nus_c->uuid_type)) |
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{ |
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for (uint32_t i = 0; i < p_evt->params.discovered_db.char_count; i++) |
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{ |
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switch (p_chars[i].characteristic.uuid.uuid) |
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{ |
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case BLE_UUID_NUS_RX_CHARACTERISTIC: |
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nus_c_evt.handles.nus_rx_handle = p_chars[i].characteristic.handle_value; |
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break; |
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case BLE_UUID_NUS_TX_CHARACTERISTIC: |
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nus_c_evt.handles.nus_tx_handle = p_chars[i].characteristic.handle_value; |
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nus_c_evt.handles.nus_tx_cccd_handle = p_chars[i].cccd_handle; |
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break; |
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case BLE_UUID_NUS_TX_BLOCK_CHARACTERISTIC: |
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nus_c_evt.handles.nus_tx_block_handle = p_chars[i].characteristic.handle_value; |
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nus_c_evt.handles.nus_tx_cccd_handle = p_chars[i].cccd_handle; |
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break; |
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default: |
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break; |
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} |
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} |
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if (p_ble_nus_c->evt_handler != NULL) |
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{ |
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nus_c_evt.conn_handle = p_evt->conn_handle; |
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nus_c_evt.evt_type = BLE_NUS_C_EVT_DISCOVERY_COMPLETE; |
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p_ble_nus_c->evt_handler(p_ble_nus_c, &nus_c_evt); |
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} |
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default: |
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break; |
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} |
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} |
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if (p_ble_nus_c->evt_handler != NULL) { |
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nus_c_evt.conn_handle = p_evt->conn_handle; |
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nus_c_evt.evt_type = BLE_NUS_C_EVT_DISCOVERY_COMPLETE; |
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p_ble_nus_c->evt_handler(p_ble_nus_c, &nus_c_evt); |
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} |
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} |
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} |
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/**@brief Function for handling Handle Value Notification received from the SoftDevice. |
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@ -122,198 +103,154 @@ void ble_nus_c_on_db_disc_evt(ble_nus_c_t * p_ble_nus_c, ble_db_discovery_evt_t |
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* @details This function uses the Handle Value Notification received from the SoftDevice |
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* and checks if it is a notification of the NUS TX characteristic from the peer. |
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* If it is, this function decodes the data and sends it to the application. |
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* |
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* |
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* @param[in] p_ble_nus_c Pointer to the NUS Client structure. |
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* @param[in] p_ble_evt Pointer to the BLE event received. |
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*/ |
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static void on_hvx(ble_nus_c_t * p_ble_nus_c, ble_evt_t const * p_ble_evt) |
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{ |
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// HVX can only occur from client sending. |
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if ( (p_ble_nus_c->handles.nus_tx_handle != BLE_GATT_HANDLE_INVALID) |
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&& (p_ble_evt->evt.gattc_evt.params.hvx.handle == p_ble_nus_c->handles.nus_tx_handle) |
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&& (p_ble_nus_c->evt_handler != NULL)) |
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{ |
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ble_nus_c_evt_t ble_nus_c_evt; |
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ble_nus_c_evt.evt_type = BLE_NUS_C_EVT_NUS_TX_EVT; |
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ble_nus_c_evt.p_data = (uint8_t *)p_ble_evt->evt.gattc_evt.params.hvx.data; |
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ble_nus_c_evt.data_len = p_ble_evt->evt.gattc_evt.params.hvx.len; |
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p_ble_nus_c->evt_handler(p_ble_nus_c, &ble_nus_c_evt); |
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NRF_LOG_DEBUG("Client sending data."); |
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} |
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if ( (p_ble_nus_c->handles.nus_tx_block_handle != BLE_GATT_HANDLE_INVALID) |
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&& (p_ble_evt->evt.gattc_evt.params.hvx.handle == p_ble_nus_c->handles.nus_tx_block_handle) |
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&& (p_ble_nus_c->evt_handler != NULL)) |
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{ |
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ble_nus_c_evt_t ble_nus_c_evt; |
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ble_nus_c_evt.evt_type = BLE_NUS_C_EVT_NUS_TX_BLOCK_EVT; |
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ble_nus_c_evt.p_data = (uint8_t *)p_ble_evt->evt.gattc_evt.params.hvx.data; |
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ble_nus_c_evt.data_len = p_ble_evt->evt.gattc_evt.params.hvx.len; |
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p_ble_nus_c->evt_handler(p_ble_nus_c, &ble_nus_c_evt); |
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NRF_LOG_DEBUG("Client sending data."); |
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} |
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static void on_hvx(ble_nus_c_t *p_ble_nus_c, ble_evt_t const *p_ble_evt) { |
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// HVX can only occur from client sending. |
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if ((p_ble_nus_c->handles.nus_tx_handle != BLE_GATT_HANDLE_INVALID) && (p_ble_evt->evt.gattc_evt.params.hvx.handle == p_ble_nus_c->handles.nus_tx_handle) && (p_ble_nus_c->evt_handler != NULL)) { |
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ble_nus_c_evt_t ble_nus_c_evt; |
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ble_nus_c_evt.evt_type = BLE_NUS_C_EVT_NUS_TX_EVT; |
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ble_nus_c_evt.p_data = (uint8_t *)p_ble_evt->evt.gattc_evt.params.hvx.data; |
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ble_nus_c_evt.data_len = p_ble_evt->evt.gattc_evt.params.hvx.len; |
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p_ble_nus_c->evt_handler(p_ble_nus_c, &ble_nus_c_evt); |
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NRF_LOG_DEBUG("Client sending data."); |
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} |
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} |
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uint32_t ble_nus_c_init(ble_nus_c_t * p_ble_nus_c, ble_nus_c_init_t * p_ble_nus_c_init) |
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{ |
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uint32_t err_code; |
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ble_uuid_t uart_uuid; |
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ble_uuid128_t nus_base_uuid = NUS_BASE_UUID; |
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uint32_t ble_nus_c_init(ble_nus_c_t *p_ble_nus_c, ble_nus_c_init_t *p_ble_nus_c_init) { |
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uint32_t err_code; |
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ble_uuid_t uart_uuid; |
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ble_uuid128_t nus_base_uuid = NUS_BASE_UUID; |
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VERIFY_PARAM_NOT_NULL(p_ble_nus_c); |
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VERIFY_PARAM_NOT_NULL(p_ble_nus_c_init); |
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VERIFY_PARAM_NOT_NULL(p_ble_nus_c_init->p_gatt_queue); |
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VERIFY_PARAM_NOT_NULL(p_ble_nus_c); |
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VERIFY_PARAM_NOT_NULL(p_ble_nus_c_init); |
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VERIFY_PARAM_NOT_NULL(p_ble_nus_c_init->p_gatt_queue); |
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err_code = sd_ble_uuid_vs_add(&nus_base_uuid, &p_ble_nus_c->uuid_type); |
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VERIFY_SUCCESS(err_code); |
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err_code = sd_ble_uuid_vs_add(&nus_base_uuid, &p_ble_nus_c->uuid_type); |
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VERIFY_SUCCESS(err_code); |
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uart_uuid.type = p_ble_nus_c->uuid_type; |
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uart_uuid.uuid = BLE_UUID_NUS_SERVICE; |
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uart_uuid.type = p_ble_nus_c->uuid_type; |
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uart_uuid.uuid = BLE_UUID_NUS_SERVICE; |
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p_ble_nus_c->conn_handle = BLE_CONN_HANDLE_INVALID; |
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p_ble_nus_c->evt_handler = p_ble_nus_c_init->evt_handler; |
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p_ble_nus_c->error_handler = p_ble_nus_c_init->error_handler; |
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p_ble_nus_c->handles.nus_tx_handle = BLE_GATT_HANDLE_INVALID; |
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p_ble_nus_c->handles.nus_tx_block_handle = BLE_GATT_HANDLE_INVALID; |
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p_ble_nus_c->handles.nus_rx_handle = BLE_GATT_HANDLE_INVALID; |
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p_ble_nus_c->p_gatt_queue = p_ble_nus_c_init->p_gatt_queue; |
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p_ble_nus_c->conn_handle = BLE_CONN_HANDLE_INVALID; |
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p_ble_nus_c->evt_handler = p_ble_nus_c_init->evt_handler; |
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p_ble_nus_c->error_handler = p_ble_nus_c_init->error_handler; |
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p_ble_nus_c->handles.nus_tx_handle = BLE_GATT_HANDLE_INVALID; |
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p_ble_nus_c->handles.nus_rx_handle = BLE_GATT_HANDLE_INVALID; |
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p_ble_nus_c->p_gatt_queue = p_ble_nus_c_init->p_gatt_queue; |
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return ble_db_discovery_evt_register(&uart_uuid); |
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return ble_db_discovery_evt_register(&uart_uuid); |
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} |
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void ble_nus_c_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context) |
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{ |
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ble_nus_c_t * p_ble_nus_c = (ble_nus_c_t *)p_context; |
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void ble_nus_c_on_ble_evt(ble_evt_t const *p_ble_evt, void *p_context) { |
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ble_nus_c_t *p_ble_nus_c = (ble_nus_c_t *)p_context; |
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if ((p_ble_nus_c == NULL) || (p_ble_evt == NULL)) |
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{ |
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return; |
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} |
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if ((p_ble_nus_c == NULL) || (p_ble_evt == NULL)) { |
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return; |
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} |
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if ( (p_ble_nus_c->conn_handle == BLE_CONN_HANDLE_INVALID) |
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||(p_ble_nus_c->conn_handle != p_ble_evt->evt.gap_evt.conn_handle) |
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) |
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{ |
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return; |
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} |
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if ((p_ble_nus_c->conn_handle == BLE_CONN_HANDLE_INVALID) || (p_ble_nus_c->conn_handle != p_ble_evt->evt.gap_evt.conn_handle)) { |
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return; |
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} |
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switch (p_ble_evt->header.evt_id) |
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{ |
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case BLE_GATTC_EVT_HVX: |
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on_hvx(p_ble_nus_c, p_ble_evt); |
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break; |
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switch (p_ble_evt->header.evt_id) { |
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case BLE_GATTC_EVT_HVX: |
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on_hvx(p_ble_nus_c, p_ble_evt); |
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break; |
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case BLE_GAP_EVT_DISCONNECTED: |
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if (p_ble_evt->evt.gap_evt.conn_handle == p_ble_nus_c->conn_handle |
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&& p_ble_nus_c->evt_handler != NULL) |
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{ |
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ble_nus_c_evt_t nus_c_evt; |
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case BLE_GAP_EVT_DISCONNECTED: |
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if (p_ble_evt->evt.gap_evt.conn_handle == p_ble_nus_c->conn_handle && p_ble_nus_c->evt_handler != NULL) { |
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ble_nus_c_evt_t nus_c_evt; |
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nus_c_evt.evt_type = BLE_NUS_C_EVT_DISCONNECTED; |
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nus_c_evt.evt_type = BLE_NUS_C_EVT_DISCONNECTED; |
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p_ble_nus_c->conn_handle = BLE_CONN_HANDLE_INVALID; |
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p_ble_nus_c->evt_handler(p_ble_nus_c, &nus_c_evt); |
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} |
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break; |
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p_ble_nus_c->conn_handle = BLE_CONN_HANDLE_INVALID; |
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p_ble_nus_c->evt_handler(p_ble_nus_c, &nus_c_evt); |
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} |
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break; |
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default: |
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// No implementation needed. |
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break; |
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} |
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default: |
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// No implementation needed. |
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break; |
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} |
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} |
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/**@brief Function for creating a message for writing to the CCCD. */ |
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static uint32_t cccd_configure(ble_nus_c_t * p_ble_nus_c, bool notification_enable) |
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{ |
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nrf_ble_gq_req_t cccd_req; |
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uint8_t cccd[BLE_CCCD_VALUE_LEN]; |
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uint16_t cccd_val = notification_enable ? BLE_GATT_HVX_NOTIFICATION : 0; |
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memset(&cccd_req, 0, sizeof(nrf_ble_gq_req_t)); |
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cccd[0] = LSB_16(cccd_val); |
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cccd[1] = MSB_16(cccd_val); |
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cccd_req.type = NRF_BLE_GQ_REQ_GATTC_WRITE; |
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cccd_req.error_handler.cb = gatt_error_handler; |
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cccd_req.error_handler.p_ctx = p_ble_nus_c; |
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cccd_req.params.gattc_write.handle = p_ble_nus_c->handles.nus_tx_cccd_handle; |
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cccd_req.params.gattc_write.len = BLE_CCCD_VALUE_LEN; |
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cccd_req.params.gattc_write.offset = 0; |
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cccd_req.params.gattc_write.p_value = cccd; |
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cccd_req.params.gattc_write.write_op = BLE_GATT_OP_WRITE_REQ; |
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cccd_req.params.gattc_write.flags = BLE_GATT_EXEC_WRITE_FLAG_PREPARED_WRITE; |
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return nrf_ble_gq_item_add(p_ble_nus_c->p_gatt_queue, &cccd_req, p_ble_nus_c->conn_handle); |
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static uint32_t cccd_configure(ble_nus_c_t *p_ble_nus_c, bool notification_enable) { |
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nrf_ble_gq_req_t cccd_req; |
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uint8_t cccd[BLE_CCCD_VALUE_LEN]; |
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uint16_t cccd_val = notification_enable ? BLE_GATT_HVX_NOTIFICATION : 0; |
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memset(&cccd_req, 0, sizeof(nrf_ble_gq_req_t)); |
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cccd[0] = LSB_16(cccd_val); |
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cccd[1] = MSB_16(cccd_val); |
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cccd_req.type = NRF_BLE_GQ_REQ_GATTC_WRITE; |
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cccd_req.error_handler.cb = gatt_error_handler; |
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cccd_req.error_handler.p_ctx = p_ble_nus_c; |
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cccd_req.params.gattc_write.handle = p_ble_nus_c->handles.nus_tx_cccd_handle; |
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cccd_req.params.gattc_write.len = BLE_CCCD_VALUE_LEN; |
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cccd_req.params.gattc_write.offset = 0; |
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cccd_req.params.gattc_write.p_value = cccd; |
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cccd_req.params.gattc_write.write_op = BLE_GATT_OP_WRITE_REQ; |
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cccd_req.params.gattc_write.flags = BLE_GATT_EXEC_WRITE_FLAG_PREPARED_WRITE; |
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return nrf_ble_gq_item_add(p_ble_nus_c->p_gatt_queue, &cccd_req, p_ble_nus_c->conn_handle); |
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} |
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uint32_t ble_nus_c_tx_notif_enable(ble_nus_c_t *p_ble_nus_c) { |
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VERIFY_PARAM_NOT_NULL(p_ble_nus_c); |
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uint32_t ble_nus_c_tx_notif_enable(ble_nus_c_t * p_ble_nus_c) |
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{ |
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VERIFY_PARAM_NOT_NULL(p_ble_nus_c); |
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if ( (p_ble_nus_c->conn_handle == BLE_CONN_HANDLE_INVALID) |
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||(p_ble_nus_c->handles.nus_tx_cccd_handle == BLE_GATT_HANDLE_INVALID) |
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) |
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{ |
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return NRF_ERROR_INVALID_STATE; |
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} |
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return cccd_configure(p_ble_nus_c, true); |
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if ((p_ble_nus_c->conn_handle == BLE_CONN_HANDLE_INVALID) || (p_ble_nus_c->handles.nus_tx_cccd_handle == BLE_GATT_HANDLE_INVALID)) { |
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return NRF_ERROR_INVALID_STATE; |
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} |
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return cccd_configure(p_ble_nus_c, true); |
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} |
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uint32_t ble_nus_c_string_send(ble_nus_c_t * p_ble_nus_c, uint8_t * p_string, uint16_t length) |
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{ |
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VERIFY_PARAM_NOT_NULL(p_ble_nus_c); |
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nrf_ble_gq_req_t write_req; |
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memset(&write_req, 0, sizeof(nrf_ble_gq_req_t)); |
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if (length > BLE_NUS_MAX_DATA_LEN) |
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{ |
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NRF_LOG_WARNING("Content too long."); |
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return NRF_ERROR_INVALID_PARAM; |
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} |
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if (p_ble_nus_c->conn_handle == BLE_CONN_HANDLE_INVALID) |
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{ |
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NRF_LOG_WARNING("Connection handle invalid."); |
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return NRF_ERROR_INVALID_STATE; |
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} |
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write_req.type = NRF_BLE_GQ_REQ_GATTC_WRITE; |
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write_req.error_handler.cb = gatt_error_handler; |
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write_req.error_handler.p_ctx = p_ble_nus_c; |
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write_req.params.gattc_write.handle = p_ble_nus_c->handles.nus_rx_handle; |
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write_req.params.gattc_write.len = length; |
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write_req.params.gattc_write.offset = 0; |
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write_req.params.gattc_write.p_value = p_string; |
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write_req.params.gattc_write.write_op = BLE_GATT_OP_WRITE_CMD; |
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write_req.params.gattc_write.flags = BLE_GATT_EXEC_WRITE_FLAG_PREPARED_WRITE; |
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return nrf_ble_gq_item_add(p_ble_nus_c->p_gatt_queue, &write_req, p_ble_nus_c->conn_handle); |
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uint32_t ble_nus_c_string_send(ble_nus_c_t *p_ble_nus_c, uint8_t *p_string, uint16_t length) { |
|
|
|
VERIFY_PARAM_NOT_NULL(p_ble_nus_c); |
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|
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|
|
|
nrf_ble_gq_req_t write_req; |
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|
|
memset(&write_req, 0, sizeof(nrf_ble_gq_req_t)); |
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|
|
|
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|
|
if (length > BLE_NUS_MAX_DATA_LEN) { |
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|
|
NRF_LOG_WARNING("Content too long."); |
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|
|
return NRF_ERROR_INVALID_PARAM; |
|
|
|
} |
|
|
|
if (p_ble_nus_c->conn_handle == BLE_CONN_HANDLE_INVALID) { |
|
|
|
NRF_LOG_WARNING("Connection handle invalid."); |
|
|
|
return NRF_ERROR_INVALID_STATE; |
|
|
|
} |
|
|
|
|
|
|
|
write_req.type = NRF_BLE_GQ_REQ_GATTC_WRITE; |
|
|
|
write_req.error_handler.cb = gatt_error_handler; |
|
|
|
write_req.error_handler.p_ctx = p_ble_nus_c; |
|
|
|
write_req.params.gattc_write.handle = p_ble_nus_c->handles.nus_rx_handle; |
|
|
|
write_req.params.gattc_write.len = length; |
|
|
|
write_req.params.gattc_write.offset = 0; |
|
|
|
write_req.params.gattc_write.p_value = p_string; |
|
|
|
write_req.params.gattc_write.write_op = BLE_GATT_OP_WRITE_CMD; |
|
|
|
write_req.params.gattc_write.flags = BLE_GATT_EXEC_WRITE_FLAG_PREPARED_WRITE; |
|
|
|
|
|
|
|
return nrf_ble_gq_item_add(p_ble_nus_c->p_gatt_queue, &write_req, p_ble_nus_c->conn_handle); |
|
|
|
} |
|
|
|
|
|
|
|
uint32_t ble_nus_c_handles_assign(ble_nus_c_t *p_ble_nus, uint16_t conn_handle, ble_nus_c_handles_t const *p_peer_handles) { |
|
|
|
VERIFY_PARAM_NOT_NULL(p_ble_nus); |
|
|
|
|
|
|
|
uint32_t ble_nus_c_handles_assign(ble_nus_c_t * p_ble_nus, |
|
|
|
uint16_t conn_handle, |
|
|
|
ble_nus_c_handles_t const * p_peer_handles) |
|
|
|
{ |
|
|
|
VERIFY_PARAM_NOT_NULL(p_ble_nus); |
|
|
|
|
|
|
|
p_ble_nus->conn_handle = conn_handle; |
|
|
|
if (p_peer_handles != NULL) |
|
|
|
{ |
|
|
|
p_ble_nus->handles.nus_tx_cccd_handle = p_peer_handles->nus_tx_cccd_handle; |
|
|
|
p_ble_nus->handles.nus_tx_handle = p_peer_handles->nus_tx_handle; |
|
|
|
p_ble_nus->handles.nus_tx_block_handle = p_peer_handles->nus_tx_block_handle; |
|
|
|
p_ble_nus->handles.nus_tx_block_cccd_handle = p_peer_handles->nus_tx_block_cccd_handle; |
|
|
|
p_ble_nus->handles.nus_rx_handle = p_peer_handles->nus_rx_handle; |
|
|
|
} |
|
|
|
return nrf_ble_gq_conn_handle_register(p_ble_nus->p_gatt_queue, conn_handle); |
|
|
|
p_ble_nus->conn_handle = conn_handle; |
|
|
|
if (p_peer_handles != NULL) { |
|
|
|
p_ble_nus->handles.nus_tx_cccd_handle = p_peer_handles->nus_tx_cccd_handle; |
|
|
|
p_ble_nus->handles.nus_tx_handle = p_peer_handles->nus_tx_handle; |
|
|
|
p_ble_nus->handles.nus_rx_handle = p_peer_handles->nus_rx_handle; |
|
|
|
} |
|
|
|
return nrf_ble_gq_conn_handle_register(p_ble_nus->p_gatt_queue, conn_handle); |
|
|
|
} |
|
|
|
#endif // NRF_MODULE_ENABLED(BLE_NUS_C) |
|
|
|
|
|
|
|
#endif |
