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103 lines
3.8 KiB
103 lines
3.8 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#include "BluetoothStack.h"
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/** Bluetooth device connection information structure. Once connected to a remote device, this structure tracks the
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* connection state of the individual L2CAP channels.
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*/
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Bluetooth_Connection_t Bluetooth_Connection = { IsConnected: false };
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/** Bluetooth device state information structure. This structure contains details on the current Bluetooth stack
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* state.
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*/
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Bluetooth_Stack_State_t Bluetooth_State = { IsInitialized: false };
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/** Bluetooth stack initialization function. This function must be called once to initialize the Bluetooth stack,
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* ready for connection to remote devices.
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*
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* \note This function only begins the initialization process; the stack is initialized as the main Bluetooth stack
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* management task is repeatedly called. The initialization process ends when the IsInitialized element of the
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* \ref Bluetooth_State structure becomes true and the \ref Bluetooth_StackInitialized() callback fires.
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*/
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void Bluetooth_Stack_Init(void)
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{
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/* Reset the HCI state machine - this will eventually reset the adapter and stack when the Bluetooth stack task is called */
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Bluetooth_State.CurrentHCIState = Bluetooth_Init;
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Bluetooth_State.NextHCIState = Bluetooth_Init;
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}
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/** Bluetooth stack management task. This task must be repeatedly called to maintain the Bluetooth stack and any connection
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* to remote Bluetooth devices, including both the HCI control layer and the ACL channel layer.
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*/
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void Bluetooth_Stack_USBTask(void)
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{
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if (USB_HostState != HOST_STATE_Configured)
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return;
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Bluetooth_HCITask();
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Bluetooth_ACLTask();
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}
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/** Retrieves the channel information structure with the given local or remote channel number from the channel list.
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*
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* \param[in] SearchValue Value to search for in the channel structure list
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* \param[in] SearchKey Key to search within the channel structure, a CHANNEL_SEARCH_* mask
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*
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* \return Pointer to the matching channel information structure in the channel table if found, NULL otherwise
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*/
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Bluetooth_Channel_t* Bluetooth_GetChannelData(const uint16_t SearchValue, const uint8_t SearchKey)
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{
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for (uint8_t i = 0; i < BLUETOOTH_MAX_OPEN_CHANNELS; i++)
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{
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Bluetooth_Channel_t* ChannelData = &Bluetooth_Connection.Channels[i];
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bool FoundMatch = false;
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switch (SearchKey)
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{
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case CHANNEL_SEARCH_LOCALNUMBER:
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FoundMatch = (SearchValue == ChannelData->LocalNumber);
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break;
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case CHANNEL_SEARCH_REMOTENUMBER:
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FoundMatch = (SearchValue == ChannelData->RemoteNumber);
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break;
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case CHANNEL_SEARCH_PSM:
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FoundMatch = (SearchValue == ChannelData->PSM);
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break;
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}
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if (FoundMatch)
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return ChannelData;
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}
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return NULL;
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}
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