diff options
Diffstat (limited to 'Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c')
| -rw-r--r-- | Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c | 117 |
1 files changed, 99 insertions, 18 deletions
diff --git a/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c b/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c index 3d5b14a4c..d15439101 100644 --- a/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c +++ b/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c @@ -31,14 +31,23 @@ #define INCLUDE_FROM_BLUETOOTHHCICOMMANDS_C
#include "BluetoothHCICommands.h"
-static BT_HCICommand_Header_t HCICommandHeader;
+/** Current processing state of the HCI portion of the Bluetooth stack. */
+uint8_t Bluetooth_HCIProcessingState;
- uint8_t Bluetooth_HCIProcessingState;
-static uint8_t Bluetooth_HCINextState;
-static uint8_t Bluetooth_TempDeviceAddress[6];
+/** Next HCI state to enter once the last issued HCI command has completed. */
+static uint8_t Bluetooth_HCINextState;
+/** Temporary Bluetooth Device Address, for HCI responses which much include the detination 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_HCIProcessingState)
{
case Bluetooth_ProcessEvents:
@@ -58,18 +67,27 @@ void Bluetooth_HCITask(void) /* Read in the event parameters into the temporary buffer */
Pipe_Read_Stream_LE(&EventParams, HCIEventHeader.ParameterLength);
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", NULL);
Bluetooth_HCIProcessingState = Bluetooth_HCINextState;
break;
case EVENT_COMMAND_STATUS:
+ BT_HCI_DEBUG(1, "<< Command Status", NULL);
+ 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_HCIProcessingState = Bluetooth_Init;
break;
case EVENT_CONNECTION_REQUEST:
+ BT_HCI_DEBUG(1, "<< Connection Request", NULL);
+ 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,
@@ -82,8 +100,14 @@ void Bluetooth_HCITask(void) Bluetooth_HCIProcessingState = (Bluetooth_Connection.IsConnected || !(IsACLConnection) ||
!(Bluetooth_ConnectionRequest(Bluetooth_TempDeviceAddress))) ?
Bluetooth_Conn_RejectConnection : Bluetooth_Conn_AcceptConnection;
+
+ BT_HCI_DEBUG(2, "-- Connection %S", (Bluetooth_HCIProcessingState == Bluetooth_Conn_RejectConnection) ?
+ PSTR("REJECTED") : PSTR("ACCEPTED"));
+
break;
case EVENT_PIN_CODE_REQUEST:
+ BT_HCI_DEBUG(1, "<< Pin Code Request", NULL);
+
/* 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,
@@ -91,7 +115,20 @@ void Bluetooth_HCITask(void) Bluetooth_HCIProcessingState = Bluetooth_Conn_SendPINCode;
break;
+ case EVENT_LINK_KEY_REQUEST:
+ BT_HCI_DEBUG(1, "<< Link Key Request", NULL);
+
+ /* 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_HCIProcessingState = Bluetooth_Conn_SendLinkKeyNAK;
+ break;
case EVENT_CONNECTION_COMPLETE:
+ BT_HCI_DEBUG(1, "<< Connection Complete", NULL);
+ 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,
@@ -104,13 +141,15 @@ void Bluetooth_HCITask(void) Bluetooth_ConnectionComplete();
break;
case EVENT_DISCONNECTION_COMPLETE:
+ BT_HCI_DEBUG(1, "<< Disconnection Complete", NULL);
+
/* Device disconnected, indicate connection information no longer valid */
Bluetooth_Connection.IsConnected = false;
Bluetooth_DisconnectionComplete();
Bluetooth_HCIProcessingState = Bluetooth_Init;
- break;
+ break;
}
}
@@ -118,12 +157,16 @@ void Bluetooth_HCITask(void) break;
case Bluetooth_Init:
+ BT_HCI_DEBUG(1, "# Init", NULL);
+
/* Reset the connection information structure to destroy any previous connection state */
memset(&Bluetooth_Connection, 0x00, sizeof(Bluetooth_Connection));
Bluetooth_HCIProcessingState = Bluetooth_Init_Reset;
break;
case Bluetooth_Init_Reset:
+ BT_HCI_DEBUG(1, "# Reset", NULL);
+
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_RESET},
@@ -131,12 +174,14 @@ void Bluetooth_HCITask(void) };
/* 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;
break;
case Bluetooth_Init_SetLocalName:
+ BT_HCI_DEBUG(1, "# Set Local Name", NULL);
+
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_LOCAL_NAME},
@@ -144,12 +189,14 @@ void Bluetooth_HCITask(void) };
/* 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;
break;
case Bluetooth_Init_SetDeviceClass:
+ BT_HCI_DEBUG(1, "# Set Device Class", NULL);
+
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_CLASS_OF_DEVICE},
@@ -157,12 +204,14 @@ void Bluetooth_HCITask(void) };
/* 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;
break;
case Bluetooth_Init_WriteScanEnable:
+ BT_HCI_DEBUG(1, "# Write Scan Enable", NULL);
+
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: {OGF: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_SCAN_ENABLE},
@@ -172,12 +221,14 @@ void Bluetooth_HCITask(void) 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;
break;
case Bluetooth_Conn_AcceptConnection:
+ BT_HCI_DEBUG(1, "# Accept Connection", NULL);
+
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_ACCEPT_CONNECTION_REQUEST},
@@ -192,11 +243,13 @@ void Bluetooth_HCITask(void) AcceptConnectionParams.SlaveRole = true;
/* Send the command to accept the remote connection request */
- Bluetooth_SendHCICommand(&AcceptConnectionParams, sizeof(BT_HCICommand_AcceptConnectionReq_t));
+ Bluetooth_SendHCICommand(&HCICommandHeader, &AcceptConnectionParams, sizeof(BT_HCICommand_AcceptConnectionReq_t));
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Conn_RejectConnection:
+ BT_HCI_DEBUG(1, "# Reject Connection", NULL);
+
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_REJECT_CONNECTION_REQUEST},
@@ -210,11 +263,13 @@ void Bluetooth_HCITask(void) RejectConnectionParams.Reason = Bluetooth_Connection.IsConnected ? ERROR_LIMITED_RESOURCES : ERROR_UNACCEPTABLE_BDADDR;
/* Send the command to reject the remote connection request */
- Bluetooth_SendHCICommand(&RejectConnectionParams, sizeof(BT_HCICommand_RejectConnectionReq_t));
+ Bluetooth_SendHCICommand(&HCICommandHeader, &RejectConnectionParams, sizeof(BT_HCICommand_RejectConnectionReq_t));
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Conn_SendPINCode:
+ BT_HCI_DEBUG(1, "# Send Pin Code", NULL);
+
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_PIN_CODE_REQUEST_REPLY},
@@ -229,17 +284,43 @@ void Bluetooth_HCITask(void) 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(BT_HCICommand_PinCodeResp_t));
+ Bluetooth_SendHCICommand(&HCICommandHeader, &PINCodeRequestParams, sizeof(BT_HCICommand_PinCodeResp_t));
+
+ Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;
+ break;
+ case Bluetooth_Conn_SendLinkKeyNAK:
+ BT_HCI_DEBUG(1, "# Send Link Key NAK", NULL);
+
+ HCICommandHeader = (BT_HCICommand_Header_t)
+ {
+ OpCode: {OGF: OGF_LINK_CONTROL, OCF: 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_HCIProcessingState = Bluetooth_ProcessEvents;
break;
}
}
-static uint8_t Bluetooth_SendHCICommand(void* Parameters, uint16_t ParameterLength)
+/** Sends a Bluetooth HCI control command to the attached Bluetooth device.
+ *
+ * \param HCICommandHeader HCI command header to send to the attached device
+ * \param Parameters Pointer to the source of the control parameters (if any)
+ * \param ParameterLength Length of the parameters to send in bytes
+ *
+ * \return A value from the USB_Host_SendControlErrorCodes_t enum.
+ */
+static uint8_t Bluetooth_SendHCICommand(BT_HCICommand_Header_t* HCICommandHeader, void* Parameters, uint16_t ParameterLength)
{
/* Need to reserve the amount of bytes given in the header for the complete payload */
- uint8_t CommandBuffer[sizeof(HCICommandHeader) + HCICommandHeader.ParameterLength];
+ uint8_t CommandBuffer[sizeof(BT_HCICommand_Header_t) + HCICommandHeader->ParameterLength];
USB_ControlRequest = (USB_Request_Header_t)
{
@@ -251,14 +332,14 @@ static uint8_t Bluetooth_SendHCICommand(void* Parameters, uint16_t ParameterLeng };
/* Copy over the HCI command header to the allocated buffer */
- memcpy(CommandBuffer, &HCICommandHeader, sizeof(HCICommandHeader));
+ memcpy(CommandBuffer, HCICommandHeader, sizeof(BT_HCICommand_Header_t));
- /* 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);
+ /* 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(HCICommandHeader)], Parameters, ParameterLength);
+ memcpy(&CommandBuffer[sizeof(BT_HCICommand_Header_t)], Parameters, ParameterLength);
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(CommandBuffer);
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