\r
#include "BluetoothHCICommands.h"\r
\r
-static Bluetooth_HCICommand_Header_t HCICommandHeader;\r
-static Bluetooth_HCIEvent_Header_t HCIEventHeader;\r
+static Bluetooth_HCICommand_Header_t HCICommandHeader;\r
\r
- uint8_t Bluetooth_HCIProcessingState;\r
- uint8_t Bluetooth_HCINextState;\r
-static uint8_t Bluetooth_TempDeviceAddress[6];\r
+ uint8_t Bluetooth_HCIProcessingState;\r
+static uint8_t Bluetooth_HCINextState;\r
+static uint8_t Bluetooth_TempDeviceAddress[6];\r
\r
-static uint8_t Bluetooth_SendHCICommand(void* Parameters, uint8_t ParamLength)\r
+static uint8_t Bluetooth_SendHCICommand(void* Parameters, uint16_t ParameterLength)\r
{\r
+ /* Need to reserve the amount of bytes given in the header for the complete payload */\r
uint8_t CommandBuffer[sizeof(HCICommandHeader) + HCICommandHeader.ParameterLength];\r
\r
USB_ControlRequest = (USB_Request_Header_t)\r
.wIndex = 0,\r
.wLength = sizeof(CommandBuffer)\r
};\r
- \r
- memset(CommandBuffer, 0x00, sizeof(CommandBuffer));\r
+\r
+ /* Copy over the HCI command header to the allocated buffer */\r
memcpy(CommandBuffer, &HCICommandHeader, sizeof(HCICommandHeader));\r
\r
- if (ParamLength)\r
- memcpy(&CommandBuffer[sizeof(HCICommandHeader)], Parameters, ParamLength);\r
+ /* Zero out the parameter section of the response to ensure that any padding bytes do not expose private RAM contents */\r
+ memset(&CommandBuffer[sizeof(HCICommandHeader)], 0x00, HCICommandHeader.ParameterLength);\r
\r
+ /* Copy over the command parameters (if any) to the command buffer - note, the number of actual source parameter bytes\r
+ may differ to those in the header; any difference in length is filled with 0x00 padding bytes */\r
+ memcpy(&CommandBuffer[sizeof(HCICommandHeader)], Parameters, ParameterLength);\r
+ \r
Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
return USB_Host_SendControlRequest(CommandBuffer);\r
}\r
\r
void Bluetooth_ProcessHCICommands(void)\r
{\r
- uint8_t ErrorCode;\r
-\r
switch (Bluetooth_HCIProcessingState)\r
{\r
case Bluetooth_ProcessEvents:\r
\r
if (Pipe_IsReadWriteAllowed())\r
{\r
+ Bluetooth_HCIEvent_Header_t HCIEventHeader;\r
+\r
+ /* Read in the event header to fetch the event code and payload length */\r
Pipe_Read_Stream_LE(&HCIEventHeader, sizeof(HCIEventHeader));\r
\r
+ /* Create a temporary buffer for the event parameters */\r
uint8_t EventParams[HCIEventHeader.ParameterLength];\r
\r
+ /* Read in the event parameters into the temporary buffer */\r
Pipe_Read_Stream_LE(&EventParams, HCIEventHeader.ParameterLength);\r
Pipe_ClearIN();\r
\r
- BT_DEBUG("(HCI) Event Code: 0x%02X", HCIEventHeader.EventCode);\r
+ BT_HCI_DEBUG("Event Code: 0x%02X", HCIEventHeader.EventCode);\r
\r
switch (HCIEventHeader.EventCode)\r
{\r
case EVENT_COMMAND_COMPLETE:\r
Bluetooth_HCIProcessingState = Bluetooth_HCINextState;\r
\r
- BT_DEBUG("(HCI) >> Command Complete (Opcode 0x%04x)", \r
+ BT_HCI_DEBUG(">> Command Complete (Opcode 0x%04x)", \r
((Bluetooth_HCIEvent_CommandComplete_t*)&EventParams)->Opcode);\r
break;\r
case EVENT_COMMAND_STATUS:\r
+ /* If the execution of a command failed, reset the stack */\r
if (((Bluetooth_HCIEvent_CommandStatus_t*)&EventParams)->Status)\r
Bluetooth_HCIProcessingState = Bluetooth_Init;\r
\r
- BT_DEBUG("(HCI) >> Command Status: 0x%02X",\r
+ BT_HCI_DEBUG(">> Command Status: 0x%02X",\r
((Bluetooth_HCIEvent_CommandStatus_t*)&EventParams)->Status); \r
break;\r
case EVENT_CONNECTION_REQUEST:\r
+ /* Need to store the remote device's BT address in a temporary buffer for later use */\r
memcpy(Bluetooth_TempDeviceAddress,\r
&((Bluetooth_HCIEvent_ConnectionRequest_t*)&EventParams)->RemoteAddress,\r
sizeof(Bluetooth_TempDeviceAddress));\r
\r
+ /* Only accept the connection if it is a ACL (data) connection */\r
Bluetooth_HCIProcessingState = (Bluetooth_Connection.IsConnected ||\r
(((Bluetooth_HCIEvent_ConnectionRequest_t*)&EventParams)->LinkType != 0x01)) ?\r
Bluetooth_Conn_RejectConnection : Bluetooth_Conn_AcceptConnection;\r
\r
- BT_DEBUG("(HCI) >> Connection Request from Device %02X:%02X:%02X:%02X:%02X:%02X",\r
+ BT_HCI_DEBUG(">> Connection Request from Device %02X:%02X:%02X:%02X:%02X:%02X",\r
Bluetooth_TempDeviceAddress[5], Bluetooth_TempDeviceAddress[4], Bluetooth_TempDeviceAddress[3],\r
Bluetooth_TempDeviceAddress[2], Bluetooth_TempDeviceAddress[1], Bluetooth_TempDeviceAddress[0]);\r
break;\r
case EVENT_PIN_CODE_REQUEST:\r
+ /* Need to store the remote device's BT address in a temporary buffer for later use */\r
memcpy(Bluetooth_TempDeviceAddress,\r
&((Bluetooth_HCIEvent_PinCodeRequest_t*)&EventParams)->RemoteAddress,\r
sizeof(Bluetooth_TempDeviceAddress));\r
\r
Bluetooth_HCIProcessingState = Bluetooth_Conn_SendPINCode;\r
\r
- BT_DEBUG("(HCI) >> PIN Request from Device %02X:%02X:%02X:%02X:%02X:%02X", \r
+ BT_HCI_DEBUG(">> PIN Request from Device %02X:%02X:%02X:%02X:%02X:%02X", \r
Bluetooth_TempDeviceAddress[5], Bluetooth_TempDeviceAddress[4], Bluetooth_TempDeviceAddress[3],\r
Bluetooth_TempDeviceAddress[2], Bluetooth_TempDeviceAddress[1], Bluetooth_TempDeviceAddress[0]);\r
break;\r
case EVENT_CONNECTION_COMPLETE:\r
+ /* Need to store the remote device's BT address in a temporary buffer for later use */\r
memcpy(Bluetooth_Connection.RemoteAddress,\r
&((Bluetooth_HCIEvent_ConnectionComplete_t*)&EventParams)->RemoteAddress,\r
sizeof(Bluetooth_TempDeviceAddress));\r
\r
+ /* Store the created connection handle and indicate that the connection has been established */\r
Bluetooth_Connection.ConnectionHandle = ((Bluetooth_HCIEvent_ConnectionComplete_t*)&EventParams)->ConnectionHandle;\r
Bluetooth_Connection.IsConnected = true;\r
\r
- BT_DEBUG("(HCI) >> Connection Complete to Device %02X:%02X:%02X:%02X:%02X:%02X, Handle 0x%04x", \r
+ BT_HCI_DEBUG(">> Connection Complete to Device %02X:%02X:%02X:%02X:%02X:%02X, Handle 0x%04x", \r
Bluetooth_Connection.RemoteAddress[5], Bluetooth_Connection.RemoteAddress[4],\r
Bluetooth_Connection.RemoteAddress[3], Bluetooth_Connection.RemoteAddress[2],\r
Bluetooth_Connection.RemoteAddress[1], Bluetooth_Connection.RemoteAddress[0],\r
Bluetooth_Connection.ConnectionHandle);\r
break;\r
+ case EVENT_DISCONNECTION_COMPLETE:\r
+ BT_HCI_DEBUG(">> Disconnection Complete", NULL);\r
+\r
+ /* Device disconnected, indicate connection information no longer valid */\r
+ Bluetooth_Connection.IsConnected = false;\r
+ \r
+ Bluetooth_HCIProcessingState = Bluetooth_Init;\r
+ break; \r
}\r
}\r
\r
\r
break;\r
case Bluetooth_Init:\r
+ /* Reset the connection information structure to destroy any previous connection state */\r
memset(&Bluetooth_Connection, 0x00, sizeof(Bluetooth_Connection));\r
\r
Bluetooth_HCIProcessingState = Bluetooth_Init_Reset; \r
ParameterLength: 0,\r
};\r
\r
- BT_DEBUG("(HCI) Enter State: Bluetooth_Init_Reset", NULL);\r
+ BT_HCI_DEBUG("Enter State: Bluetooth_Init_Reset", NULL);\r
\r
- ErrorCode = Bluetooth_SendHCICommand(NULL, 0);\r
+ /* Send the command to reset the bluetooth dongle controller */\r
+ Bluetooth_SendHCICommand(NULL, 0);\r
\r
- Bluetooth_HCINextState = Bluetooth_Init_ReadBufferSize;\r
- Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;\r
- break;\r
- case Bluetooth_Init_ReadBufferSize:\r
- HCICommandHeader = (Bluetooth_HCICommand_Header_t)\r
- {\r
- OpCode: {OGF: OGF_CTRLR_INFORMATIONAL, OCF: OGF_CTRLR_INFORMATIONAL_READBUFFERSIZE},\r
- ParameterLength: 0,\r
- };\r
- \r
- BT_DEBUG("(HCI) Enter State: Bluetooth_Init_ReadBufferSize", NULL);\r
-\r
- ErrorCode = Bluetooth_SendHCICommand(NULL, 0);\r
-\r
Bluetooth_HCINextState = Bluetooth_Init_SetLocalName;\r
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;\r
break;\r
ParameterLength: 248,\r
};\r
\r
- BT_DEBUG("(HCI) Enter State: Bluetooth_Init_SetLocalName", NULL);\r
- BT_DEBUG("(HCI) -- Name: %s", Bluetooth_DeviceConfiguration.Name);\r
+ BT_HCI_DEBUG("Enter State: Bluetooth_Init_SetLocalName", NULL);\r
+ BT_HCI_DEBUG("-- Name: %s", Bluetooth_DeviceConfiguration.Name);\r
\r
- ErrorCode = Bluetooth_SendHCICommand(Bluetooth_DeviceConfiguration.Name, strlen(Bluetooth_DeviceConfiguration.Name));\r
+ /* Send the command to set the bluetooth dongle's name for other devices to see */\r
+ Bluetooth_SendHCICommand(Bluetooth_DeviceConfiguration.Name, strlen(Bluetooth_DeviceConfiguration.Name));\r
\r
Bluetooth_HCINextState = Bluetooth_Init_SetDeviceClass;\r
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;\r
ParameterLength: 3,\r
};\r
\r
- BT_DEBUG("(HCI) Enter State: Bluetooth_Init_SetDeviceClass", NULL);\r
+ BT_HCI_DEBUG("Enter State: Bluetooth_Init_SetDeviceClass", NULL);\r
\r
- ErrorCode = Bluetooth_SendHCICommand(&Bluetooth_DeviceConfiguration.Class, 3);\r
+ /* Send the command to set the class of the device for other devices to see */\r
+ Bluetooth_SendHCICommand(&Bluetooth_DeviceConfiguration.Class, 3);\r
\r
Bluetooth_HCINextState = Bluetooth_Init_WriteScanEnable;\r
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;\r
ParameterLength: 1,\r
};\r
\r
- BT_DEBUG("(HCI) Enter State: Bluetooth_Init_WriteScanEnable", NULL);\r
+ BT_HCI_DEBUG("Enter State: Bluetooth_Init_WriteScanEnable", NULL);\r
\r
- uint8_t Interval = InquiryAndPageScans;\r
- ErrorCode = Bluetooth_SendHCICommand(&Interval, 1);\r
+ uint8_t Interval = BT_SCANMODE_InquiryAndPageScans;\r
+ \r
+ /* Send the command to set the remote device scanning mode */\r
+ Bluetooth_SendHCICommand(&Interval, 1);\r
\r
Bluetooth_HCINextState = Bluetooth_ProcessEvents;\r
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;\r
ParameterLength: sizeof(Bluetooth_HCICommand_AcceptConnectionRequest_t),\r
};\r
\r
- BT_DEBUG("(HCI) Enter State: Bluetooth_Conn_AcceptConnection", NULL);\r
+ BT_HCI_DEBUG("Enter State: Bluetooth_Conn_AcceptConnection", NULL);\r
\r
+ /* Copy over the temporary BT device address saved from the Connection Request event, indicate slave\r
+ connection role */\r
Bluetooth_HCICommand_AcceptConnectionRequest_t AcceptConnectionParams;\r
-\r
- memcpy(AcceptConnectionParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(Bluetooth_TempDeviceAddress));\r
+ memcpy(AcceptConnectionParams.RemoteAddress, Bluetooth_TempDeviceAddress,\r
+ sizeof(AcceptConnectionParams.RemoteAddress));\r
AcceptConnectionParams.SlaveRole = true;\r
\r
- ErrorCode = Bluetooth_SendHCICommand(&AcceptConnectionParams, sizeof(AcceptConnectionParams));\r
+ /* Send the command to accept the remote connection request */\r
+ Bluetooth_SendHCICommand(&AcceptConnectionParams, sizeof(Bluetooth_HCICommand_AcceptConnectionRequest_t));\r
\r
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;\r
break;\r
ParameterLength: sizeof(Bluetooth_HCICommand_RejectConnectionRequest_t),\r
};\r
\r
- BT_DEBUG("(HCI) Enter State: Bluetooth_Conn_RejectConnection", NULL);\r
+ BT_HCI_DEBUG("Enter State: Bluetooth_Conn_RejectConnection", NULL);\r
\r
+ /* Copy over the temporary BT device address saved from the Connection Request event, indicate failure\r
+ to accept the connection due to limited device resources */\r
Bluetooth_HCICommand_RejectConnectionRequest_t RejectConnectionParams;\r
-\r
memcpy(RejectConnectionParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(RejectConnectionParams.RemoteAddress));\r
RejectConnectionParams.Reason = ERROR_LIMITED_RESOURCES;\r
\r
- ErrorCode = Bluetooth_SendHCICommand(&RejectConnectionParams, sizeof(RejectConnectionParams));\r
+ /* Send the command to reject the remote connection request */\r
+ Bluetooth_SendHCICommand(&RejectConnectionParams, sizeof(Bluetooth_HCICommand_RejectConnectionRequest_t));\r
\r
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;\r
break;\r
ParameterLength: sizeof(Bluetooth_HCICommand_PinCodeResponse_t),\r
};\r
\r
- BT_DEBUG("(HCI) Enter State: Bluetooth_Conn_SendPINCode", NULL);\r
- BT_DEBUG("(HCI) -- PIN: %s", Bluetooth_DeviceConfiguration.PINCode);\r
+ BT_HCI_DEBUG("Enter State: Bluetooth_Conn_SendPINCode", NULL);\r
+ BT_HCI_DEBUG("-- PIN: %s", Bluetooth_DeviceConfiguration.PINCode);\r
\r
+ /* Copy over the temporary BT device address saved from the PIN Code Request event, copy over the\r
+ local PIN authentication code to the response */\r
Bluetooth_HCICommand_PinCodeResponse_t PINCodeRequestParams;\r
- \r
- memcpy(PINCodeRequestParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(Bluetooth_TempDeviceAddress));\r
+ memcpy(PINCodeRequestParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(PINCodeRequestParams.RemoteAddress));\r
PINCodeRequestParams.PINCodeLength = strlen(Bluetooth_DeviceConfiguration.PINCode);\r
memcpy(PINCodeRequestParams.PINCode, Bluetooth_DeviceConfiguration.PINCode, sizeof(PINCodeRequestParams.PINCode));\r
\r
- ErrorCode = Bluetooth_SendHCICommand(&PINCodeRequestParams, sizeof(PINCodeRequestParams));\r
+ /* Send the command to transmit the device's local PIN number for authentication */\r
+ Bluetooth_SendHCICommand(&PINCodeRequestParams, sizeof(Bluetooth_HCICommand_PinCodeResponse_t));\r
\r
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;\r
break;\r
projects / pub / USBasp.git / blobdiff