X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/fd96b288824caaa3ee4e5e03887f016de9df80cf..ceb16ee24f1e6add5e2ad0398369c24d2d868cd8:/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c diff --git a/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c b/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c index dd2a3e5cf..740ce6766 100644 --- a/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c +++ b/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c @@ -28,45 +28,24 @@ this software. */ -#include "BluetoothHCICommands.h" +/* + TODO: Add local to remote device connections + */ -static Bluetooth_HCICommand_Header_t HCICommandHeader; +#define INCLUDE_FROM_BLUETOOTHHCICOMMANDS_C +#include "BluetoothHCICommands.h" - uint8_t Bluetooth_HCIProcessingState; -static uint8_t Bluetooth_HCINextState; -static uint8_t Bluetooth_TempDeviceAddress[6]; +/** Temporary Bluetooth Device Address, for HCI responses which much include the detination address */ +static uint8_t Bluetooth_TempDeviceAddress[6]; -static uint8_t Bluetooth_SendHCICommand(void* Parameters, uint16_t ParameterLength) +/** 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) { - /* Need to reserve the amount of bytes given in the header for the complete payload */ - uint8_t CommandBuffer[sizeof(HCICommandHeader) + 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(HCICommandHeader)); - - /* Zero out the parameter section of the response to ensure that any padding bytes do not expose private RAM contents */ - memset(&CommandBuffer[sizeof(HCICommandHeader)], 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(HCICommandHeader)], Parameters, ParameterLength); - - Pipe_SelectPipe(PIPE_CONTROLPIPE); - return USB_Host_SendControlRequest(CommandBuffer); -} + BT_HCICommand_Header_t HCICommandHeader; -void Bluetooth_ProcessHCICommands(void) -{ - switch (Bluetooth_HCIProcessingState) + switch (Bluetooth_State.CurrentHCIState) { case Bluetooth_ProcessEvents: Pipe_SelectPipe(BLUETOOTH_EVENTS_PIPE); @@ -74,7 +53,7 @@ void Bluetooth_ProcessHCICommands(void) if (Pipe_IsReadWriteAllowed()) { - Bluetooth_HCIEvent_Header_t HCIEventHeader; + 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)); @@ -85,76 +64,101 @@ void Bluetooth_ProcessHCICommands(void) /* Read in the event parameters into the temporary buffer */ Pipe_Read_Stream_LE(&EventParams, HCIEventHeader.ParameterLength); Pipe_ClearIN(); - - BT_HCI_DEBUG("Event Code: 0x%02X", HCIEventHeader.EventCode); + BT_HCI_DEBUG(1, "Event Received (0x%02X)", HCIEventHeader.EventCode); + switch (HCIEventHeader.EventCode) { case EVENT_COMMAND_COMPLETE: - Bluetooth_HCIProcessingState = Bluetooth_HCINextState; - - BT_HCI_DEBUG(">> Command Complete (Opcode 0x%04x)", - ((Bluetooth_HCIEvent_CommandComplete_t*)&EventParams)->Opcode); + 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: - /* If the execution of a command failed, reset the stack */ - if (((Bluetooth_HCIEvent_CommandStatus_t*)&EventParams)->Status) - Bluetooth_HCIProcessingState = Bluetooth_Init; + BT_HCI_DEBUG(1, "<< Command Status"); + BT_HCI_DEBUG(2, "-- Status Code: 0x%02X", (((BT_HCIEvent_CommandStatus_t*)&EventParams)->Status)); - BT_HCI_DEBUG(">> Command Status: 0x%02X", - ((Bluetooth_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, - &((Bluetooth_HCIEvent_ConnectionRequest_t*)&EventParams)->RemoteAddress, + &((BT_HCIEvent_ConnectionRequest_t*)&EventParams)->RemoteAddress, sizeof(Bluetooth_TempDeviceAddress)); - - /* Only accept the connection if it is a ACL (data) connection */ - Bluetooth_HCIProcessingState = (Bluetooth_Connection.IsConnected || - (((Bluetooth_HCIEvent_ConnectionRequest_t*)&EventParams)->LinkType != 0x01)) ? - Bluetooth_Conn_RejectConnection : Bluetooth_Conn_AcceptConnection; - - BT_HCI_DEBUG(">> Connection Request from Device %02X:%02X:%02X:%02X:%02X:%02X", - Bluetooth_TempDeviceAddress[5], Bluetooth_TempDeviceAddress[4], Bluetooth_TempDeviceAddress[3], - Bluetooth_TempDeviceAddress[2], Bluetooth_TempDeviceAddress[1], Bluetooth_TempDeviceAddress[0]); + + 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, - &((Bluetooth_HCIEvent_PinCodeRequest_t*)&EventParams)->RemoteAddress, + &((BT_HCIEvent_PinCodeReq_t*)&EventParams)->RemoteAddress, sizeof(Bluetooth_TempDeviceAddress)); - Bluetooth_HCIProcessingState = Bluetooth_Conn_SendPINCode; - - BT_HCI_DEBUG(">> PIN Request from Device %02X:%02X:%02X:%02X:%02X:%02X", - Bluetooth_TempDeviceAddress[5], Bluetooth_TempDeviceAddress[4], Bluetooth_TempDeviceAddress[3], - Bluetooth_TempDeviceAddress[2], Bluetooth_TempDeviceAddress[1], Bluetooth_TempDeviceAddress[0]); + 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, - &((Bluetooth_HCIEvent_ConnectionComplete_t*)&EventParams)->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 = ((Bluetooth_HCIEvent_ConnectionComplete_t*)&EventParams)->ConnectionHandle; + Bluetooth_Connection.ConnectionHandle = ((BT_HCIEvent_ConnectionComplete_t*)&EventParams)->ConnectionHandle; Bluetooth_Connection.IsConnected = true; - - BT_HCI_DEBUG(">> Connection Complete to Device %02X:%02X:%02X:%02X:%02X:%02X, Handle 0x%04x", - Bluetooth_Connection.RemoteAddress[5], Bluetooth_Connection.RemoteAddress[4], - Bluetooth_Connection.RemoteAddress[3], Bluetooth_Connection.RemoteAddress[2], - Bluetooth_Connection.RemoteAddress[1], Bluetooth_Connection.RemoteAddress[0], - Bluetooth_Connection.ConnectionHandle); + + Bluetooth_ConnectionComplete(); break; case EVENT_DISCONNECTION_COMPLETE: - BT_HCI_DEBUG(">> Disconnection Complete", NULL); + BT_HCI_DEBUG(1, "<< Disconnection Complete"); /* Device disconnected, indicate connection information no longer valid */ Bluetooth_Connection.IsConnected = false; - Bluetooth_HCIProcessingState = Bluetooth_Init; - break; + Bluetooth_DisconnectionComplete(); + + Bluetooth_State.CurrentHCIState = Bluetooth_Init; + break; } } @@ -162,136 +166,231 @@ void Bluetooth_ProcessHCICommands(void) 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_HCIProcessingState = Bluetooth_Init_Reset; + Bluetooth_State.CurrentHCIState = Bluetooth_Init_Reset; break; case Bluetooth_Init_Reset: - HCICommandHeader = (Bluetooth_HCICommand_Header_t) + BT_HCI_DEBUG(1, "# Reset"); + + HCICommandHeader = (BT_HCICommand_Header_t) { - OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_RESET}, + OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_RESET), ParameterLength: 0, }; - - BT_HCI_DEBUG("Enter State: Bluetooth_Init_Reset", NULL); /* Send the command to reset the bluetooth dongle controller */ - Bluetooth_SendHCICommand(NULL, 0); + Bluetooth_SendHCICommand(&HCICommandHeader, NULL, 0); - Bluetooth_HCINextState = Bluetooth_Init_SetLocalName; - Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents; + 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: - HCICommandHeader = (Bluetooth_HCICommand_Header_t) + BT_HCI_DEBUG(1, "# Set Local Name"); + + HCICommandHeader = (BT_HCICommand_Header_t) { - OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_LOCAL_NAME}, + OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_LOCAL_NAME), ParameterLength: 248, }; - BT_HCI_DEBUG("Enter State: Bluetooth_Init_SetLocalName", NULL); - BT_HCI_DEBUG("-- Name: %s", Bluetooth_DeviceConfiguration.Name); - /* Send the command to set the bluetooth dongle's name for other devices to see */ - Bluetooth_SendHCICommand(Bluetooth_DeviceConfiguration.Name, strlen(Bluetooth_DeviceConfiguration.Name)); + Bluetooth_SendHCICommand(&HCICommandHeader, Bluetooth_DeviceConfiguration.Name, strlen(Bluetooth_DeviceConfiguration.Name)); - Bluetooth_HCINextState = Bluetooth_Init_SetDeviceClass; - Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents; + Bluetooth_State.NextHCIState = Bluetooth_Init_SetDeviceClass; + Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; break; case Bluetooth_Init_SetDeviceClass: - HCICommandHeader = (Bluetooth_HCICommand_Header_t) + BT_HCI_DEBUG(1, "# Set Device Class"); + + HCICommandHeader = (BT_HCICommand_Header_t) { - OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_CLASS_OF_DEVICE}, + OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_CLASS_OF_DEVICE), ParameterLength: 3, }; - BT_HCI_DEBUG("Enter State: Bluetooth_Init_SetDeviceClass", NULL); - /* Send the command to set the class of the device for other devices to see */ - Bluetooth_SendHCICommand(&Bluetooth_DeviceConfiguration.Class, 3); + Bluetooth_SendHCICommand(&HCICommandHeader, &Bluetooth_DeviceConfiguration.Class, 3); - Bluetooth_HCINextState = Bluetooth_Init_WriteScanEnable; - Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents; + Bluetooth_State.NextHCIState = Bluetooth_Init_WriteScanEnable; + Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; break; case Bluetooth_Init_WriteScanEnable: - HCICommandHeader = (Bluetooth_HCICommand_Header_t) + BT_HCI_DEBUG(1, "# Write Scan Enable"); + + HCICommandHeader = (BT_HCICommand_Header_t) { - OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_SCAN_ENABLE}, + OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_SCAN_ENABLE), ParameterLength: 1, }; - - BT_HCI_DEBUG("Enter State: Bluetooth_Init_WriteScanEnable", NULL); uint8_t Interval = BT_SCANMODE_InquiryAndPageScans; /* Send the command to set the remote device scanning mode */ - Bluetooth_SendHCICommand(&Interval, 1); + Bluetooth_SendHCICommand(&HCICommandHeader, &Interval, 1); - Bluetooth_HCINextState = Bluetooth_ProcessEvents; - Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents; + 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: - HCICommandHeader = (Bluetooth_HCICommand_Header_t) + BT_HCI_DEBUG(1, "# Accept Connection"); + + HCICommandHeader = (BT_HCICommand_Header_t) { - OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_ACCEPT_CONNECTION_REQUEST}, - ParameterLength: sizeof(Bluetooth_HCICommand_AcceptConnectionRequest_t), + OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_ACCEPT_CONNECTION_REQUEST), + ParameterLength: sizeof(BT_HCICommand_AcceptConnectionReq_t), }; - - BT_HCI_DEBUG("Enter State: Bluetooth_Conn_AcceptConnection", NULL); /* Copy over the temporary BT device address saved from the Connection Request event, indicate slave connection role */ - Bluetooth_HCICommand_AcceptConnectionRequest_t AcceptConnectionParams; + 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(&AcceptConnectionParams, sizeof(Bluetooth_HCICommand_AcceptConnectionRequest_t)); + Bluetooth_SendHCICommand(&HCICommandHeader, &AcceptConnectionParams, sizeof(BT_HCICommand_AcceptConnectionReq_t)); - Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents; + Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; break; case Bluetooth_Conn_RejectConnection: - HCICommandHeader = (Bluetooth_HCICommand_Header_t) + BT_HCI_DEBUG(1, "# Reject Connection"); + + HCICommandHeader = (BT_HCICommand_Header_t) { - OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_REJECT_CONNECTION_REQUEST}, - ParameterLength: sizeof(Bluetooth_HCICommand_RejectConnectionRequest_t), + OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_REJECT_CONNECTION_REQUEST), + ParameterLength: sizeof(BT_HCICommand_RejectConnectionReq_t), }; - - BT_HCI_DEBUG("Enter State: Bluetooth_Conn_RejectConnection", NULL); /* Copy over the temporary BT device address saved from the Connection Request event, indicate failure - to accept the connection due to limited device resources */ - Bluetooth_HCICommand_RejectConnectionRequest_t RejectConnectionParams; + 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 = ERROR_LIMITED_RESOURCES; + RejectConnectionParams.Reason = Bluetooth_Connection.IsConnected ? ERROR_LIMITED_RESOURCES : ERROR_UNACCEPTABLE_BDADDR; /* Send the command to reject the remote connection request */ - Bluetooth_SendHCICommand(&RejectConnectionParams, sizeof(Bluetooth_HCICommand_RejectConnectionRequest_t)); + Bluetooth_SendHCICommand(&HCICommandHeader, &RejectConnectionParams, sizeof(BT_HCICommand_RejectConnectionReq_t)); - Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents; + Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents; break; case Bluetooth_Conn_SendPINCode: - HCICommandHeader = (Bluetooth_HCICommand_Header_t) + BT_HCI_DEBUG(1, "# Send Pin Code"); + + HCICommandHeader = (BT_HCICommand_Header_t) { - OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_PIN_CODE_REQUEST_REPLY}, - ParameterLength: sizeof(Bluetooth_HCICommand_PinCodeResponse_t), + OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_PIN_CODE_REQUEST_REPLY), + ParameterLength: sizeof(BT_HCICommand_PinCodeResp_t), }; - - BT_HCI_DEBUG("Enter State: Bluetooth_Conn_SendPINCode", NULL); - BT_HCI_DEBUG("-- PIN: %s", Bluetooth_DeviceConfiguration.PINCode); /* Copy over the temporary BT device address saved from the PIN Code Request event, copy over the local PIN authentication code to the response */ - Bluetooth_HCICommand_PinCodeResponse_t PINCodeRequestParams; + 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(&PINCodeRequestParams, sizeof(Bluetooth_HCICommand_PinCodeResponse_t)); + 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"); - Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents; + 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); +}