diff options
Diffstat (limited to 'Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c')
| -rw-r--r-- | Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c | 406 |
1 files changed, 0 insertions, 406 deletions
diff --git a/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c b/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c deleted file mode 100644 index 6c555f7ae..000000000 --- a/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c +++ /dev/null @@ -1,406 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2012. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * Bluetooth HCI layer management code. This module manages the overall - * Bluetooth stack connection state to and from other devices, processes - * received events from the Bluetooth controller, and issues commands to - * modify the controller's configuration, such as the broadcast name of the - * device. - */ - -/* - TODO: Add local to remote device connections - */ - -#define INCLUDE_FROM_BLUETOOTHHCICOMMANDS_C -#include "BluetoothHCICommands.h" - -/** Temporary Bluetooth Device Address, for HCI responses which must include the destination address */ -static uint8_t Bluetooth_TempDeviceAddress[6]; - -/** Bluetooth HCI processing task. This task should be called repeatedly the main Bluetooth - * stack task to manage the HCI processing state. - */ -void Bluetooth_HCITask(void) -{ - BT_HCICommand_Header_t HCICommandHeader; - - switch (Bluetooth_State.CurrentHCIState) - { - case Bluetooth_ProcessEvents: - Pipe_SelectPipe(BLUETOOTH_EVENTS_PIPE); - Pipe_Unfreeze(); - - if (Pipe_IsReadWriteAllowed()) - { - BT_HCIEvent_Header_t HCIEventHeader; - - /* Read in the event header to fetch the event code and payload length */ - Pipe_Read_Stream_LE(&HCIEventHeader, sizeof(HCIEventHeader), NULL); - - /* Create a temporary buffer for the event parameters */ - uint8_t EventParams[HCIEventHeader.ParameterLength]; - - /* Read in the event parameters into the temporary buffer */ - Pipe_Read_Stream_LE(&EventParams, HCIEventHeader.ParameterLength, NULL); - Pipe_ClearIN(); - - BT_HCI_DEBUG(1, "Event Received (0x%02X)", HCIEventHeader.EventCode); - - switch (HCIEventHeader.EventCode) - { - case EVENT_COMMAND_COMPLETE: - BT_HCI_DEBUG(1, "<< Command Complete"); - - /* Check which operation was completed in case we need to process the even parameters */ - switch (((BT_HCIEvent_CommandComplete_t*)&EventParams)->Opcode) - { - case (OGF_CTRLR_INFORMATIONAL | OCF_CTRLR_INFORMATIONAL_READBDADDR): - /* A READ BDADDR command completed, copy over the local device's BDADDR from the response */ - memcpy(Bluetooth_State.LocalBDADDR, - &((BT_HCIEvent_CommandComplete_t*)&EventParams)->ReturnParams[1], - sizeof(Bluetooth_State.LocalBDADDR)); - break; - } - - Bluetooth_State.CurrentHCIState = Bluetooth_State.NextHCIState; - break; - case EVENT_COMMAND_STATUS: - BT_HCI_DEBUG(1, "<< Command Status"); - BT_HCI_DEBUG(2, "-- Status Code: 0x%02X", (((BT_HCIEvent_CommandStatus_t*)&EventParams)->Status)); - - /* If the execution of a command failed, reset the stack */ - if (((BT_HCIEvent_CommandStatus_t*)&EventParams)->Status) - Bluetooth_State.CurrentHCIState = Bluetooth_Init; - break; - case EVENT_CONNECTION_REQUEST: - BT_HCI_DEBUG(1, "<< Connection Request"); - BT_HCI_DEBUG(2, "-- Link Type: 0x%02X", (((BT_HCIEvent_ConnectionRequest_t*)&EventParams)->LinkType)); - - /* Need to store the remote device's BT address in a temporary buffer for later use */ - memcpy(Bluetooth_TempDeviceAddress, - &((BT_HCIEvent_ConnectionRequest_t*)&EventParams)->RemoteAddress, - sizeof(Bluetooth_TempDeviceAddress)); - - bool IsACLConnection = (((BT_HCIEvent_ConnectionRequest_t*)&EventParams)->LinkType == 0x01); - - /* Only accept the connection if it is a ACL (data) connection, a device is not already connected - and the user application has indicated that the connection should be allowed */ - Bluetooth_State.CurrentHCIState = (Bluetooth_Connection.IsConnected || !(IsACLConnection) || - !(Bluetooth_ConnectionRequest(Bluetooth_TempDeviceAddress))) ? - Bluetooth_Conn_RejectConnection : Bluetooth_Conn_AcceptConnection; - - BT_HCI_DEBUG(2, "-- Connection %S", (Bluetooth_State.CurrentHCIState == Bluetooth_Conn_RejectConnection) ? - PSTR("REJECTED") : PSTR("ACCEPTED")); - - break; - case EVENT_PIN_CODE_REQUEST: - BT_HCI_DEBUG(1, "<< Pin Code Request"); - - /* Need to store the remote device's BT address in a temporary buffer for later use */ - memcpy(Bluetooth_TempDeviceAddress, - &((BT_HCIEvent_PinCodeReq_t*)&EventParams)->RemoteAddress, - sizeof(Bluetooth_TempDeviceAddress)); - - Bluetooth_State.CurrentHCIState = Bluetooth_Conn_SendPINCode; - break; - case EVENT_LINK_KEY_REQUEST: - BT_HCI_DEBUG(1, "<< Link Key Request"); - - /* Need to store the remote device's BT address in a temporary buffer for later use */ - memcpy(Bluetooth_TempDeviceAddress, - &((BT_HCIEvent_LinkKeyReq_t*)&EventParams)->RemoteAddress, - sizeof(Bluetooth_TempDeviceAddress)); - - Bluetooth_State.CurrentHCIState = Bluetooth_Conn_SendLinkKeyNAK; - break; - case EVENT_CONNECTION_COMPLETE: - BT_HCI_DEBUG(1, "<< Connection Complete"); - BT_HCI_DEBUG(2, "-- Handle: 0x%04X", ((BT_HCIEvent_ConnectionComplete_t*)&EventParams)->ConnectionHandle); - - /* Need to store the remote device's BT address in a temporary buffer for later use */ - memcpy(Bluetooth_Connection.RemoteAddress, - &((BT_HCIEvent_ConnectionComplete_t*)&EventParams)->RemoteAddress, - sizeof(Bluetooth_TempDeviceAddress)); - - /* Store the created connection handle and indicate that the connection has been established */ - Bluetooth_Connection.ConnectionHandle = ((BT_HCIEvent_ConnectionComplete_t*)&EventParams)->ConnectionHandle; - Bluetooth_Connection.IsConnected = true; - - Bluetooth_ConnectionComplete(); - break; - case EVENT_DISCONNECTION_COMPLETE: - BT_HCI_DEBUG(1, "<< Disconnection Complete"); - - /* Device disconnected, indicate connection information no longer valid */ - Bluetooth_Connection.IsConnected = false; - - Bluetooth_DisconnectionComplete(); - break; - } - } - - Pipe_Freeze(); - - break; - case Bluetooth_Init: - BT_HCI_DEBUG(1, "# Init"); - - Bluetooth_State.IsInitialized = false; - - /* Reset the connection information structure to destroy any previous connection state */ - memset(&Bluetooth_Connection, 0x00, sizeof(Bluetooth_Connection)); - - Bluetooth_State.CurrentHCIState = Bluetooth_Init_Reset; - break; - case Bluetooth_Init_Reset: - BT_HCI_DEBUG(1, "# Reset"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_RESET), - ParameterLength: 0, - }; - - /* Send the command to reset the Bluetooth dongle controller */ - Bluetooth_SendHCICommand(&HCICommandHeader, NULL, 0); - - Bluetooth_State.NextHCIState = Bluetooth_Init_ReadBufferSize; - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Init_ReadBufferSize: - BT_HCI_DEBUG(1, "# Read Buffer Size"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_CTRLR_INFORMATIONAL | OCF_CTRLR_INFORMATIONAL_READBUFFERSIZE), - ParameterLength: 0, - }; - - /* Send the command to read the Bluetooth buffer size (mandatory before device sends any data) */ - Bluetooth_SendHCICommand(&HCICommandHeader, NULL, 0); - - Bluetooth_State.NextHCIState = Bluetooth_Init_GetBDADDR; - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Init_GetBDADDR: - BT_HCI_DEBUG(1, "# Get BDADDR"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_CTRLR_INFORMATIONAL | OCF_CTRLR_INFORMATIONAL_READBDADDR), - ParameterLength: 0, - }; - - /* Send the command to retrieve the BDADDR of the inserted Bluetooth dongle */ - Bluetooth_SendHCICommand(&HCICommandHeader, NULL, 0); - - Bluetooth_State.NextHCIState = Bluetooth_Init_SetLocalName; - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Init_SetLocalName: - BT_HCI_DEBUG(1, "# Set Local Name"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_LOCAL_NAME), - ParameterLength: 248, - }; - - /* Send the command to set the Bluetooth dongle's name for other devices to see */ - Bluetooth_SendHCICommand(&HCICommandHeader, Bluetooth_DeviceConfiguration.Name, strlen(Bluetooth_DeviceConfiguration.Name)); - - Bluetooth_State.NextHCIState = Bluetooth_Init_SetDeviceClass; - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Init_SetDeviceClass: - BT_HCI_DEBUG(1, "# Set Device Class"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_CLASS_OF_DEVICE), - ParameterLength: 3, - }; - - /* Send the command to set the class of the device for other devices to see */ - Bluetooth_SendHCICommand(&HCICommandHeader, &Bluetooth_DeviceConfiguration.Class, 3); - - Bluetooth_State.NextHCIState = Bluetooth_Init_WriteScanEnable; - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Init_WriteScanEnable: - BT_HCI_DEBUG(1, "# Write Scan Enable"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_SCAN_ENABLE), - ParameterLength: 1, - }; - - uint8_t Interval = BT_SCANMODE_InquiryAndPageScans; - - /* Send the command to set the remote device scanning mode */ - Bluetooth_SendHCICommand(&HCICommandHeader, &Interval, 1); - - Bluetooth_State.NextHCIState = Bluetooth_Init_FinalizeInit; - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Init_FinalizeInit: - Bluetooth_State.IsInitialized = true; - - /* Fire the user application callback to indicate that the stack is now fully initialized */ - Bluetooth_StackInitialized(); - - Bluetooth_State.NextHCIState = Bluetooth_ProcessEvents; - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Conn_AcceptConnection: - BT_HCI_DEBUG(1, "# Accept Connection"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_ACCEPT_CONNECTION_REQUEST), - ParameterLength: sizeof(BT_HCICommand_AcceptConnectionReq_t), - }; - - /* Copy over the temporary BT device address saved from the Connection Request event, indicate slave - connection role */ - BT_HCICommand_AcceptConnectionReq_t AcceptConnectionParams; - memcpy(AcceptConnectionParams.RemoteAddress, Bluetooth_TempDeviceAddress, - sizeof(AcceptConnectionParams.RemoteAddress)); - AcceptConnectionParams.SlaveRole = true; - - /* Send the command to accept the remote connection request */ - Bluetooth_SendHCICommand(&HCICommandHeader, &AcceptConnectionParams, sizeof(BT_HCICommand_AcceptConnectionReq_t)); - - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Conn_RejectConnection: - BT_HCI_DEBUG(1, "# Reject Connection"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_REJECT_CONNECTION_REQUEST), - ParameterLength: sizeof(BT_HCICommand_RejectConnectionReq_t), - }; - - /* Copy over the temporary BT device address saved from the Connection Request event, indicate failure - to accept the connection due to limited device resources or incorrect device address */ - BT_HCICommand_RejectConnectionReq_t RejectConnectionParams; - memcpy(RejectConnectionParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(RejectConnectionParams.RemoteAddress)); - RejectConnectionParams.Reason = Bluetooth_Connection.IsConnected ? ERROR_LIMITED_RESOURCES : ERROR_UNACCEPTABLE_BDADDR; - - /* Send the command to reject the remote connection request */ - Bluetooth_SendHCICommand(&HCICommandHeader, &RejectConnectionParams, sizeof(BT_HCICommand_RejectConnectionReq_t)); - - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Conn_SendPINCode: - BT_HCI_DEBUG(1, "# Send Pin Code"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_PIN_CODE_REQUEST_REPLY), - ParameterLength: sizeof(BT_HCICommand_PinCodeResp_t), - }; - - /* Copy over the temporary BT device address saved from the PIN Code Request event, copy over the - local PIN authentication code to the response */ - BT_HCICommand_PinCodeResp_t PINCodeRequestParams; - memcpy(PINCodeRequestParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(PINCodeRequestParams.RemoteAddress)); - PINCodeRequestParams.PINCodeLength = strlen(Bluetooth_DeviceConfiguration.PINCode); - memcpy(PINCodeRequestParams.PINCode, Bluetooth_DeviceConfiguration.PINCode, sizeof(PINCodeRequestParams.PINCode)); - - /* Send the command to transmit the device's local PIN number for authentication */ - Bluetooth_SendHCICommand(&HCICommandHeader, &PINCodeRequestParams, sizeof(BT_HCICommand_PinCodeResp_t)); - - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - case Bluetooth_Conn_SendLinkKeyNAK: - BT_HCI_DEBUG(1, "# Send Link Key NAK"); - - HCICommandHeader = (BT_HCICommand_Header_t) - { - OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_LINK_KEY_REQUEST_NEG_REPLY), - ParameterLength: sizeof(BT_HCICommand_LinkKeyNAKResp_t), - }; - - /* Copy over the temporary BT device address saved from the Link Key Request event */ - BT_HCICommand_LinkKeyNAKResp_t LinkKeyNAKParams; - memcpy(LinkKeyNAKParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(LinkKeyNAKParams.RemoteAddress)); - - /* Send the command to transmit the link key NAK to the receiver */ - Bluetooth_SendHCICommand(&HCICommandHeader, &LinkKeyNAKParams, sizeof(BT_HCICommand_LinkKeyNAKResp_t)); - - Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; - break; - } -} - -/** Sends a Bluetooth HCI control command to the attached Bluetooth device. - * - * \param[in] HCICommandHeader HCI command header to send to the attached device - * \param[in] Parameters Pointer to the source of the control parameters (if any) - * \param[in] ParameterLength Length of the parameters to send in bytes - * - * \return A value from the USB_Host_SendControlErrorCodes_t enum. - */ -static uint8_t Bluetooth_SendHCICommand(const BT_HCICommand_Header_t* const HCICommandHeader, - const void* Parameters, - const uint16_t ParameterLength) -{ - /* Need to reserve the amount of bytes given in the header for the complete payload */ - uint8_t CommandBuffer[sizeof(BT_HCICommand_Header_t) + HCICommandHeader->ParameterLength]; - - USB_ControlRequest = (USB_Request_Header_t) - { - .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_DEVICE), - .bRequest = 0, - .wValue = 0, - .wIndex = 0, - .wLength = sizeof(CommandBuffer) - }; - - /* Copy over the HCI command header to the allocated buffer */ - memcpy(CommandBuffer, HCICommandHeader, sizeof(BT_HCICommand_Header_t)); - - /* Zero out the parameter section of the response so that all padding bytes are known to be zero */ - memset(&CommandBuffer[sizeof(BT_HCICommand_Header_t)], 0x00, HCICommandHeader->ParameterLength); - - /* Copy over the command parameters (if any) to the command buffer - note, the number of actual source parameter bytes - may differ to those in the header; any difference in length is filled with 0x00 padding bytes */ - memcpy(&CommandBuffer[sizeof(BT_HCICommand_Header_t)], Parameters, ParameterLength); - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - return USB_Host_SendControlRequest(CommandBuffer); -} - |