317 lines
8.4 KiB
C
317 lines
8.4 KiB
C
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/**************************************************************************************************
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Filename: observer.c
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Revised: $Date: 2011-05-05 10:12:10 -0700 (Thu, 05 May 2011) $
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Revision: $Revision: 25871 $
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Description: GAP Observer Role
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Copyright 2011 Texas Instruments Incorporated. All rights reserved.
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IMPORTANT: Your use of this Software is limited to those specific rights
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granted under the terms of a software license agreement between the user
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who downloaded the software, his/her employer (which must be your employer)
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and Texas Instruments Incorporated (the "License"). You may not use this
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Software unless you agree to abide by the terms of the License. The License
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limits your use, and you acknowledge, that the Software may not be modified,
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copied or distributed unless embedded on a Texas Instruments microcontroller
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or used solely and exclusively in conjunction with a Texas Instruments radio
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frequency transceiver, which is integrated into your product. Other than for
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the foregoing purpose, you may not use, reproduce, copy, prepare derivative
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works of, modify, distribute, perform, display or sell this Software and/or
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its documentation for any purpose.
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YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE
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PROVIDED <EFBFBD>AS IS<EFBFBD> WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
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INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE,
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NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL
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TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT,
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NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER
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LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES
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INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE
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OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT
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OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES
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(INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS.
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Should you have any questions regarding your right to use this Software,
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contact Texas Instruments Incorporated at www.TI.com.
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**************************************************************************************************/
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/*********************************************************************
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* INCLUDES
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*/
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#include "bcomdef.h"
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#include "OSAL.h"
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#include "osal_cbTimer.h"
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#include "osal_snv.h"
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#include "hci_tl.h"
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#include "gap.h"
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#include "observer.h"
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/*********************************************************************
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* MACROS
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*/
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/*********************************************************************
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* CONSTANTS
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*/
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/*********************************************************************
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* TYPEDEFS
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*/
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/*********************************************************************
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* GLOBAL VARIABLES
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*/
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/*********************************************************************
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* EXTERNAL VARIABLES
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*/
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/*********************************************************************
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* EXTERNAL FUNCTIONS
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*/
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/*********************************************************************
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* LOCAL VARIABLES
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*/
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// Task ID
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static uint8 gapObserverRoleTaskId;
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// App callbacks
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static gapObserverRoleCB_t *pGapObserverRoleCB;
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/*********************************************************************
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* Profile Parameters - reference GAPCENTRALROLE_PROFILE_PARAMETERS for
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* descriptions
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*/
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static uint8 gapObserverRoleBdAddr[B_ADDR_LEN];
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static uint8 gapObserverRoleMaxScanRes = 0;
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/*********************************************************************
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* LOCAL FUNCTIONS
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*/
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static void gapObserverRole_ProcessOSALMsg( osal_event_hdr_t *pMsg );
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static void gapObserverRole_ProcessGAPMsg( gapEventHdr_t *pMsg );
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/*********************************************************************
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* PUBLIC FUNCTIONS
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*/
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/**
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* @brief Start the device in Observer role. This function is typically
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* called once during system startup.
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*
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* Public function defined in observer.h.
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*/
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bStatus_t GAPObserverRole_StartDevice( gapObserverRoleCB_t *pAppCallbacks )
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{
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if ( pAppCallbacks )
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{
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pGapObserverRoleCB = pAppCallbacks;
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}
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return GAP_DeviceInit( gapObserverRoleTaskId, GAP_PROFILE_OBSERVER,
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gapObserverRoleMaxScanRes, NULL, NULL, NULL );
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}
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/**
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* @brief Set a parameter in the Observer Profile.
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*
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* Public function defined in observer.h.
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*/
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bStatus_t GAPObserverRole_SetParameter( uint16 param, uint8 len, void *pValue )
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{
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bStatus_t ret = SUCCESS;
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switch ( param )
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{
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case GAPOBSERVERROLE_MAX_SCAN_RES:
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if ( len == sizeof ( uint8 ) )
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{
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gapObserverRoleMaxScanRes = *((uint8*)pValue);
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}
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else
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{
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ret = bleInvalidRange;
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}
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break;
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default:
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ret = INVALIDPARAMETER;
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break;
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}
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return ret;
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}
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/**
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* @brief Get a parameter in the Observer Profile.
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*
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* Public function defined in observer.h.
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*/
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bStatus_t GAPObserverRole_GetParameter( uint16 param, void *pValue )
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{
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bStatus_t ret = SUCCESS;
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switch ( param )
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{
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case GAPOBSERVERROLE_BD_ADDR:
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VOID osal_memcpy( pValue, gapObserverRoleBdAddr, B_ADDR_LEN ) ;
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break;
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case GAPOBSERVERROLE_MAX_SCAN_RES:
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*((uint8*)pValue) = gapObserverRoleMaxScanRes;
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break;
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default:
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ret = INVALIDPARAMETER;
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break;
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}
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return ret;
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}
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/**
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* @brief Start a device discovery scan.
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*
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* Public function defined in observer.h.
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*/
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bStatus_t GAPObserverRole_StartDiscovery( uint8 mode, uint8 activeScan, uint8 whiteList )
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{
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gapDevDiscReq_t params;
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params.taskID = gapObserverRoleTaskId;
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params.mode = mode;
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params.activeScan = activeScan;
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params.whiteList = whiteList;
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return GAP_DeviceDiscoveryRequest( ¶ms );
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}
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/**
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* @brief Cancel a device discovery scan.
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*
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* Public function defined in observer.h.
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*/
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bStatus_t GAPObserverRole_CancelDiscovery( void )
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{
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return GAP_DeviceDiscoveryCancel( gapObserverRoleTaskId );
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}
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/**
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* @brief Observer Profile Task initialization function.
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*
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* @param taskId - Task ID.
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*
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* @return void
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*/
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void GAPObserverRole_Init( uint8 taskId )
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{
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gapObserverRoleTaskId = taskId;
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// Register for HCI messages (for RSSI)
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GAP_RegisterForHCIMsgs( taskId );
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}
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/**
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* @brief Observer Profile Task event processing function.
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*
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* @param taskId - Task ID
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* @param events - Events.
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*
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* @return events not processed
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*/
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uint16 GAPObserverRole_ProcessEvent( uint8 taskId, uint16 events )
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{
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if ( events & SYS_EVENT_MSG )
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{
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uint8 *pMsg;
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if ( (pMsg = osal_msg_receive( gapObserverRoleTaskId )) != NULL )
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{
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gapObserverRole_ProcessOSALMsg( (osal_event_hdr_t *) pMsg );
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// Release the OSAL message
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VOID osal_msg_deallocate( pMsg );
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}
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// return unprocessed events
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return (events ^ SYS_EVENT_MSG);
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}
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// Discard unknown events
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return 0;
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}
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/*********************************************************************
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* @fn gapObserverRole_ProcessOSALMsg
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*
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* @brief Process an incoming task message.
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*
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* @param pMsg - message to process
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*
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* @return none
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*/
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static void gapObserverRole_ProcessOSALMsg( osal_event_hdr_t *pMsg )
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{
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switch ( pMsg->event )
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{
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case HCI_GAP_EVENT_EVENT:
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if ( pMsg->status == HCI_COMMAND_COMPLETE_EVENT_CODE )
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{
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//hciEvt_CmdComplete_t *pPkt = (hciEvt_CmdComplete_t *) pMsg;
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}
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break;
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case GAP_MSG_EVENT:
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gapObserverRole_ProcessGAPMsg( (gapEventHdr_t *) pMsg );
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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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/*********************************************************************
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* @fn gapObserverRole_ProcessGAPMsg
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*
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* @brief Process an incoming task message from GAP.
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*
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* @param pMsg - message to process
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*
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* @return none
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*/
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static void gapObserverRole_ProcessGAPMsg( gapEventHdr_t *pMsg )
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{
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switch ( pMsg->opcode )
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{
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case GAP_DEVICE_INIT_DONE_EVENT:
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{
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gapDeviceInitDoneEvent_t *pPkt = (gapDeviceInitDoneEvent_t *) pMsg;
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if ( pPkt->hdr.status == SUCCESS )
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{
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// Save off the information
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VOID osal_memcpy( gapObserverRoleBdAddr, pPkt->devAddr, B_ADDR_LEN );
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}
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}
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break;
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default:
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break;
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}
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// Pass event to app
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if ( pGapObserverRoleCB && pGapObserverRoleCB->eventCB )
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{
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pGapObserverRoleCB->eventCB( (gapObserverRoleEvent_t *) pMsg );
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}
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}
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/*********************************************************************
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*********************************************************************/
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