diff options
Diffstat (limited to 'Demos/BluetoothHost/BluetoothHCICommands.c')
-rw-r--r-- | Demos/BluetoothHost/BluetoothHCICommands.c | 367 |
1 files changed, 367 insertions, 0 deletions
diff --git a/Demos/BluetoothHost/BluetoothHCICommands.c b/Demos/BluetoothHost/BluetoothHCICommands.c new file mode 100644 index 000000000..d529a3498 --- /dev/null +++ b/Demos/BluetoothHost/BluetoothHCICommands.c @@ -0,0 +1,367 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, 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.
+*/
+
+#include "BluetoothHCICommands.h"
+
+static Bluetooth_HCICommand_Header_t HCICommandHeader;
+static Bluetooth_HCIEvent_Header_t HCIEventHeader;
+
+ uint8_t Bluetooth_HCIProcessingState;
+static uint8_t Bluetooth_TempDeviceAddress[6];
+
+static uint8_t Bluetooth_SendHCICommand(void* Parameters, uint8_t ParamLength)
+{
+ uint8_t CommandBuffer[sizeof(HCICommandHeader) + HCICommandHeader.ParameterLength];
+
+ USB_HostRequest = (USB_Host_Request_Header_t)
+ {
+ bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_DEVICE),
+ bRequest: 0,
+ wValue: 0,
+ wIndex: 0,
+ wLength: sizeof(CommandBuffer)
+ };
+
+ memset(CommandBuffer, 0x00, sizeof(CommandBuffer));
+ memcpy(CommandBuffer, &HCICommandHeader, sizeof(HCICommandHeader));
+
+ if (ParamLength)
+ memcpy(&CommandBuffer[sizeof(HCICommandHeader)], Parameters, ParamLength);
+
+ return USB_Host_SendControlRequest(CommandBuffer);
+}
+
+static bool Bluetooth_GetNextHCIEventHeader(void)
+{
+ Pipe_SelectPipe(BLUETOOTH_EVENTS_PIPE);
+ Pipe_Unfreeze();
+
+ if (!(Pipe_ReadWriteAllowed()))
+ return false;
+
+ Pipe_Read_Stream_LE(&HCIEventHeader, sizeof(HCIEventHeader));
+
+ return true;
+}
+
+static void Bluetooth_DiscardRemainingHCIEventParameters(void)
+{
+ Pipe_SelectPipe(BLUETOOTH_EVENTS_PIPE);
+ Pipe_Discard_Stream(HCIEventHeader.ParameterLength);
+ Pipe_ClearCurrentBank();
+}
+
+void Bluetooth_ProcessHCICommands(void)
+{
+ uint8_t ErrorCode;
+
+ switch (Bluetooth_HCIProcessingState)
+ {
+ case Bluetooth_Init:
+ Pipe_SelectPipe(BLUETOOTH_EVENTS_PIPE);
+ Pipe_SetInfiniteINRequests();
+
+ memset(&Bluetooth_Connection, 0x00, sizeof(Bluetooth_Connection));
+
+ Bluetooth_HCIProcessingState = Bluetooth_Init_Reset;
+ break;
+ case Bluetooth_Init_Reset:
+ HCICommandHeader = (Bluetooth_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_RESET},
+ ParameterLength: 0,
+ };
+
+ BT_DEBUG("(HCI) Enter State: Bluetooth_Init_Reset", NULL);
+
+ ErrorCode = Bluetooth_SendHCICommand(NULL, 0);
+
+ do
+ {
+ while (!(Bluetooth_GetNextHCIEventHeader()));
+ Bluetooth_DiscardRemainingHCIEventParameters();
+ } while (HCIEventHeader.EventCode != EVENT_COMMAND_COMPLETE);
+
+ Bluetooth_HCIProcessingState = Bluetooth_Init_ReadBufferSize;
+ break;
+ case Bluetooth_Init_ReadBufferSize:
+ HCICommandHeader = (Bluetooth_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_CTRLR_INFORMATIONAL, OCF: OGF_CTRLR_INFORMATIONAL_READBUFFERSIZE},
+ ParameterLength: 0,
+ };
+
+ BT_DEBUG("(HCI) Enter State: Bluetooth_Init_ReadBufferSize", NULL);
+
+ ErrorCode = Bluetooth_SendHCICommand(NULL, 0);
+
+ do
+ {
+ while (!(Bluetooth_GetNextHCIEventHeader()));
+ Bluetooth_DiscardRemainingHCIEventParameters();
+ } while (HCIEventHeader.EventCode != EVENT_COMMAND_COMPLETE);
+
+ Bluetooth_HCIProcessingState = Bluetooth_Init_SetEventMask;
+ break;
+ case Bluetooth_Init_SetEventMask:
+ HCICommandHeader = (Bluetooth_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_SET_EVENT_MASK},
+ ParameterLength: 8,
+ };
+
+ BT_DEBUG("(HCI) Enter State: Bluetooth_Init_SetEventMask", NULL);
+
+ uint8_t EventMask[8] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+ ErrorCode = Bluetooth_SendHCICommand(&EventMask, 8);
+
+ BT_DEBUG("(HCI) -- Event mask: 0x%02X%02X%02X%02X%02X%02X%02X%02X", EventMask[7], EventMask[6], EventMask[5], EventMask[4],
+ EventMask[3], EventMask[2], EventMask[1], EventMask[0]);
+ do
+ {
+ while (!(Bluetooth_GetNextHCIEventHeader()));
+ Bluetooth_DiscardRemainingHCIEventParameters();
+ } while (HCIEventHeader.EventCode != EVENT_COMMAND_COMPLETE);
+
+
+ Bluetooth_HCIProcessingState = Bluetooth_Init_SetLocalName;
+ break;
+ case Bluetooth_Init_SetLocalName:
+ HCICommandHeader = (Bluetooth_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_LOCAL_NAME},
+ ParameterLength: 248,
+ };
+
+ BT_DEBUG("(HCI) Enter State: Bluetooth_Init_SetLocalName", NULL);
+ BT_DEBUG("(HCI) -- Name: %s", Bluetooth_DeviceConfiguration.Name);
+
+ ErrorCode = Bluetooth_SendHCICommand(Bluetooth_DeviceConfiguration.Name, strlen(Bluetooth_DeviceConfiguration.Name));
+
+ do
+ {
+ while (!(Bluetooth_GetNextHCIEventHeader()));
+ Bluetooth_DiscardRemainingHCIEventParameters();
+ } while (HCIEventHeader.EventCode != EVENT_COMMAND_COMPLETE);
+
+ Bluetooth_HCIProcessingState = Bluetooth_Init_SetDeviceClass;
+ break;
+ case Bluetooth_Init_SetDeviceClass:
+ HCICommandHeader = (Bluetooth_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_CLASS_OF_DEVICE},
+ ParameterLength: 3,
+ };
+
+ BT_DEBUG("(HCI) Enter State: Bluetooth_Init_SetDeviceClass", NULL);
+
+ ErrorCode = Bluetooth_SendHCICommand(&Bluetooth_DeviceConfiguration.Class, 3);
+
+ do
+ {
+ while (!(Bluetooth_GetNextHCIEventHeader()));
+ Bluetooth_DiscardRemainingHCIEventParameters();
+ } while (HCIEventHeader.EventCode != EVENT_COMMAND_COMPLETE);
+
+ Bluetooth_HCIProcessingState = Bluetooth_Init_WriteScanEnable;
+ break;
+ case Bluetooth_Init_WriteScanEnable:
+ HCICommandHeader = (Bluetooth_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_SCAN_ENABLE},
+ ParameterLength: 1,
+ };
+
+ BT_DEBUG("(HCI) Enter State: Bluetooth_Init_WriteScanEnable", NULL);
+
+ uint8_t Interval = InquiryAndPageScans;
+ ErrorCode = Bluetooth_SendHCICommand(&Interval, 1);
+
+ do
+ {
+ while (!(Bluetooth_GetNextHCIEventHeader()));
+ Bluetooth_DiscardRemainingHCIEventParameters();
+ } while (HCIEventHeader.EventCode != EVENT_COMMAND_COMPLETE);
+
+ Bluetooth_HCIProcessingState = Bluetooth_PrepareToProcessEvents;
+ break;
+ case Bluetooth_PrepareToProcessEvents:
+ BT_DEBUG("(HCI) Enter State: Bluetooth_ProcessEvents", NULL);
+
+ Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;
+ break;
+ case Bluetooth_ProcessEvents:
+ if (Bluetooth_GetNextHCIEventHeader())
+ {
+ BT_DEBUG("(HCI) Event Code: 0x%02X", HCIEventHeader.EventCode);
+
+ if (HCIEventHeader.EventCode == EVENT_COMMAND_STATUS)
+ {
+ Bluetooth_HCIEvent_CommandStatus_Header_t CommandStatusHeader;
+
+ Pipe_Read_Stream_LE(&CommandStatusHeader, sizeof(CommandStatusHeader));
+ HCIEventHeader.ParameterLength -= sizeof(CommandStatusHeader);
+
+ BT_DEBUG("(HCI) >> Command status: 0x%02X", CommandStatusHeader.CommandStatus);
+
+ if (CommandStatusHeader.CommandStatus)
+ Bluetooth_HCIProcessingState = Bluetooth_Init;
+ }
+ else if (HCIEventHeader.EventCode == EVENT_CONNECTION_REQUEST)
+ {
+ Bluetooth_HCIEvent_ConnectionRequest_Header_t ConnectionRequestParams;
+
+ Pipe_Read_Stream_LE(&ConnectionRequestParams, sizeof(ConnectionRequestParams));
+ HCIEventHeader.ParameterLength -= sizeof(ConnectionRequestParams);
+
+ BT_DEBUG("(HCI) >> Connection Request from device %02X:%02X:%02X:%02X:%02X:%02X",
+ ConnectionRequestParams.RemoteAddress[5], ConnectionRequestParams.RemoteAddress[4],
+ ConnectionRequestParams.RemoteAddress[3], ConnectionRequestParams.RemoteAddress[2],
+ ConnectionRequestParams.RemoteAddress[1], ConnectionRequestParams.RemoteAddress[0]);
+ BT_DEBUG("(HCI) -- Device Class: 0x%02X%04X", ConnectionRequestParams.ClassOfDevice_Service,
+ ConnectionRequestParams.ClassOfDevice_MajorMinor);
+ BT_DEBUG("(HCI) -- Link Type: 0x%02x", ConnectionRequestParams.LinkType);
+
+ memcpy(Bluetooth_TempDeviceAddress, ConnectionRequestParams.RemoteAddress,
+ sizeof(Bluetooth_TempDeviceAddress));
+
+ Bluetooth_HCIProcessingState = (Bluetooth_Connection.IsConnected) ? Bluetooth_Conn_RejectConnection :
+ Bluetooth_Conn_AcceptConnection;
+ }
+ else if (HCIEventHeader.EventCode == EVENT_DISCONNECTION_COMPLETE)
+ {
+ BT_DEBUG("(HCI) >> Disconnection from device complete.", NULL);
+ Bluetooth_HCIProcessingState = Bluetooth_Init;
+ }
+ else if (HCIEventHeader.EventCode == EVENT_CONNECTION_COMPLETE)
+ {
+ Bluetooth_HCIEvent_ConnectionComplete_Header_t ConnectionCompleteParams;
+
+ Pipe_Read_Stream_LE(&ConnectionCompleteParams, sizeof(ConnectionCompleteParams));
+ HCIEventHeader.ParameterLength -= sizeof(ConnectionCompleteParams);
+
+ BT_DEBUG("(HCI) >> Connection to device complete.", NULL);
+ BT_DEBUG("(HCI) -- Status: %d", ConnectionCompleteParams.Status);
+ BT_DEBUG("(HCI) -- Handle: %d", ConnectionCompleteParams.ConnectionHandle);
+
+ if (ConnectionCompleteParams.Status == 0x00)
+ {
+ memcpy(Bluetooth_Connection.DeviceAddress, ConnectionCompleteParams.RemoteAddress,
+ sizeof(Bluetooth_Connection.DeviceAddress));
+ Bluetooth_Connection.ConnectionHandle = ConnectionCompleteParams.ConnectionHandle;
+ Bluetooth_Connection.IsConnected = true;
+ }
+ }
+ else if (HCIEventHeader.EventCode == EVENT_PIN_CODE_REQUEST)
+ {
+ Pipe_Read_Stream_LE(&Bluetooth_TempDeviceAddress, sizeof(Bluetooth_TempDeviceAddress));
+ HCIEventHeader.ParameterLength -= sizeof(Bluetooth_TempDeviceAddress);
+
+ BT_DEBUG("(HCI) >> PIN code 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_HCIProcessingState = Bluetooth_Conn_SendPINCode;
+ }
+
+ BT_DEBUG("(HCI) -- Unread Event Param Length: %d", HCIEventHeader.ParameterLength);
+
+ Bluetooth_DiscardRemainingHCIEventParameters();
+ }
+
+ break;
+ case Bluetooth_Conn_AcceptConnection:
+ HCICommandHeader = (Bluetooth_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_ACCEPT_CONNECTION_REQUEST},
+ ParameterLength: sizeof(Bluetooth_HCICommand_AcceptConnectionRequest_Params_t),
+ };
+
+ BT_DEBUG("(HCI) Enter State: Bluetooth_Conn_AcceptConnection", NULL);
+
+ Bluetooth_HCICommand_AcceptConnectionRequest_Params_t AcceptConnectionParams;
+
+ memcpy(AcceptConnectionParams.RemoteAddress, Bluetooth_TempDeviceAddress,
+ sizeof(Bluetooth_TempDeviceAddress));
+ AcceptConnectionParams.SlaveRole = true;
+
+ Bluetooth_SendHCICommand(&AcceptConnectionParams, sizeof(AcceptConnectionParams));
+
+ Bluetooth_HCIProcessingState = Bluetooth_PrepareToProcessEvents;
+ break;
+ case Bluetooth_Conn_RejectConnection:
+ HCICommandHeader = (Bluetooth_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_ACCEPT_CONNECTION_REQUEST},
+ ParameterLength: sizeof(Bluetooth_HCICommand_RejectConnectionRequest_Params_t),
+ };
+
+ BT_DEBUG("(HCI) Enter State: Bluetooth_Conn_RejectConnection", NULL);
+
+ Bluetooth_HCICommand_RejectConnectionRequest_Params_t RejectConnectionParams;
+
+ memcpy(RejectConnectionParams.RemoteAddress, Bluetooth_TempDeviceAddress,
+ sizeof(Bluetooth_TempDeviceAddress));
+ RejectConnectionParams.Reason = ERROR_LIMITED_RESOURCES;
+
+ Bluetooth_SendHCICommand(&AcceptConnectionParams, sizeof(AcceptConnectionParams));
+
+ Bluetooth_HCIProcessingState = Bluetooth_PrepareToProcessEvents;
+ break;
+ case Bluetooth_Conn_SendPINCode:
+ HCICommandHeader = (Bluetooth_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_PIN_CODE_REQUEST_REPLY},
+ ParameterLength: sizeof(Bluetooth_HCICommand_PinCodeResponse_Params_t),
+ };
+
+ BT_DEBUG("(HCI) Enter State: Bluetooth_Conn_SendPINCode", NULL);
+ BT_DEBUG("(HCI) -- PIN: %s", Bluetooth_DeviceConfiguration.PINCode);
+
+ Bluetooth_HCICommand_PinCodeResponse_Params_t PINCodeRequestParams;
+
+ memcpy(PINCodeRequestParams.RemoteAddress, Bluetooth_TempDeviceAddress,
+ sizeof(Bluetooth_TempDeviceAddress));
+ PINCodeRequestParams.PINCodeLength = strlen(Bluetooth_DeviceConfiguration.PINCode);
+ memcpy(PINCodeRequestParams.PINCode, Bluetooth_DeviceConfiguration.PINCode,
+ sizeof(Bluetooth_DeviceConfiguration.PINCode));
+
+ Bluetooth_SendHCICommand(&PINCodeRequestParams, sizeof(PINCodeRequestParams));
+
+ do
+ {
+ while (!(Bluetooth_GetNextHCIEventHeader()));
+ Bluetooth_DiscardRemainingHCIEventParameters();
+ } while (HCIEventHeader.EventCode != EVENT_COMMAND_COMPLETE);
+
+ Bluetooth_HCIProcessingState = Bluetooth_PrepareToProcessEvents;
+ break;
+ }
+}
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