mirror of https://github.com/ARMmbed/mbed-os.git
91 lines
3.4 KiB
C++
91 lines
3.4 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2006-2013 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "common/common.h"
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#include "app_timer.h"
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#include "ble_gap.h"
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#include "ble_conn_params.h"
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static inline uint32_t msec_to_1_25msec(uint32_t interval_ms) ATTR_ALWAYS_INLINE ATTR_CONST;
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static void error_callback(uint32_t nrf_error);
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/**************************************************************************/
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/*!
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@brief Initialise GAP in the underlying SoftDevice
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@returns
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*/
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/**************************************************************************/
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error_t btle_gap_init(void)
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{
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ble_gap_conn_params_t gap_conn_params = { 0 };
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gap_conn_params.min_conn_interval = msec_to_1_25msec(CFG_GAP_CONNECTION_MIN_INTERVAL_MS) ; // in 1.25ms unit
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gap_conn_params.max_conn_interval = msec_to_1_25msec(CFG_GAP_CONNECTION_MAX_INTERVAL_MS) ; // in 1.25ms unit
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gap_conn_params.slave_latency = CFG_GAP_CONNECTION_SLAVE_LATENCY ;
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gap_conn_params.conn_sup_timeout = CFG_GAP_CONNECTION_SUPERVISION_TIMEOUT_MS / 10 ; // in 10ms unit
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ble_gap_conn_sec_mode_t sec_mode;
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BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode); // no security is needed
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ASSERT_STATUS( sd_ble_gap_device_name_set(&sec_mode, (const uint8_t *) CFG_GAP_LOCAL_NAME, strlen(CFG_GAP_LOCAL_NAME)) );
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ASSERT_STATUS( sd_ble_gap_appearance_set(CFG_GAP_APPEARANCE) );
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ASSERT_STATUS( sd_ble_gap_ppcp_set(&gap_conn_params) );
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ASSERT_STATUS( sd_ble_gap_tx_power_set(CFG_BLE_TX_POWER_LEVEL) );
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/* Connection Parameters */
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enum {
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FIRST_UPDATE_DELAY = APP_TIMER_TICKS(5000, CFG_TIMER_PRESCALER),
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NEXT_UPDATE_DELAY = APP_TIMER_TICKS(5000, CFG_TIMER_PRESCALER),
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MAX_UPDATE_COUNT = 3
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};
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ble_conn_params_init_t cp_init = { 0 };
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cp_init.p_conn_params = NULL ;
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cp_init.first_conn_params_update_delay = FIRST_UPDATE_DELAY ;
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cp_init.next_conn_params_update_delay = NEXT_UPDATE_DELAY ;
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cp_init.max_conn_params_update_count = MAX_UPDATE_COUNT ;
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cp_init.start_on_notify_cccd_handle = BLE_GATT_HANDLE_INVALID ;
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cp_init.disconnect_on_fail = true ;
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cp_init.evt_handler = NULL ;
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cp_init.error_handler = error_callback;
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ASSERT_STATUS ( ble_conn_params_init(&cp_init) );
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return ERROR_NONE;
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}
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/**************************************************************************/
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/*!
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@brief Converts msecs to an integer representing 1.25ms units
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@param[in] ms
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The number of milliseconds to conver to 1.25ms units
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@returns The number of 1.25ms units in the supplied number of ms
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*/
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/**************************************************************************/
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static inline uint32_t msec_to_1_25msec(uint32_t interval_ms)
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{
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return (interval_ms * 4) / 5 ;
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}
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static void error_callback(uint32_t nrf_error)
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{
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ASSERT_STATUS_RET_VOID( nrf_error );
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}
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