100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
/***************************************************************************//**
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* @file
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* @brief Bluetooth initialization and event processing
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*******************************************************************************
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* # License
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* <b>Copyright 2024 Silicon Laboratories Inc. www.silabs.com</b>
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*******************************************************************************
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*
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* SPDX-License-Identifier: Zlib
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*
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* The licensor of this software is Silicon Laboratories Inc.
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*
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* This software is provided 'as-is', without any express or implied warranty.
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* In no event will the authors be held liable for any damages arising from the
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* use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software in a
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* product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*
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******************************************************************************/
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#include <sl_common.h>
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#include "sl_bluetooth.h"
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#include "sl_assert.h"
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#include "sl_bt_stack_init.h"
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#include "sl_component_catalog.h"
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/**
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* Internal stack function to start the Bluetooth stack.
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*
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* @return SL_STATUS_OK if the stack was successfully started
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*/
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extern sl_status_t sli_bt_system_start_bluetooth();
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void sl_bt_init(void)
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{
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// Stack initialization could fail, e.g., due to out of memory.
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// The failure could not be returned to user as the system initialization
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// does not return an error code. Use the EFM_ASSERT to catch the failure,
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// which requires either DEBUG_EFM or DEBUG_EFM_USER is defined.
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sl_status_t err = sl_bt_stack_init();
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EFM_ASSERT(err == SL_STATUS_OK);
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// When neither Bluetooth on-demand start feature nor an RTOS is present, the
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// Bluetooth stack is always started already at init-time.
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#if !defined(SL_CATALOG_BLUETOOTH_ON_DEMAND_START_PRESENT) && !defined(SL_CATALOG_KERNEL_PRESENT)
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err = sli_bt_system_start_bluetooth();
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EFM_ASSERT(err == SL_STATUS_OK);
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#endif
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}
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SL_WEAK void sl_bt_on_event(sl_bt_msg_t* evt)
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{
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(void)(evt);
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}
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void sl_bt_process_event(sl_bt_msg_t *evt)
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{
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sl_bt_on_event(evt);
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}
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#if !defined(SL_CATALOG_KERNEL_PRESENT)
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// When running in an RTOS, the stack events are processed in a dedicated
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// event processing task, and these functions are not used at all.
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SL_WEAK bool sl_bt_can_process_event(uint32_t len)
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{
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(void)(len);
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return true;
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}
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void sl_bt_step(void)
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{
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sl_bt_msg_t evt;
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sl_bt_run();
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uint32_t event_len = sl_bt_event_pending_len();
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// For preventing from data loss, the event will be kept in the stack's queue
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// if application cannot process it at the moment.
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if ((event_len == 0) || (!sl_bt_can_process_event(event_len))) {
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return;
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}
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// Pop (non-blocking) a Bluetooth stack event from event queue.
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sl_status_t status = sl_bt_pop_event(&evt);
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if(status != SL_STATUS_OK){
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return;
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}
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sl_bt_process_event(&evt);
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}
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#endif // !defined(SL_CATALOG_KERNEL_PRESENT)
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