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Added ability to search by Channel PSM to the GetChannelData() function in the BluetoothHost demo.

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Added new HCI states to properly initialize the bluetooth dongle and retrieve the local BDADDR.

Factored out Bluetooth state information into a new state structure for easy reference in the user application.

Added new StackInitialized() Bluetooth stack callback function.
This commit is contained in:
Dean Camera 2010-04-22 14:08:00 +00:00
parent 8252b4febd
commit 5993e1efe7
11 changed files with 199 additions and 105 deletions
Download patch file Download diff file Expand all files Collapse all files

122
Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothHCICommands.c
View file

@ -31,16 +31,9 @@
#define INCLUDE_FROM_BLUETOOTHHCICOMMANDS_C
#include "BluetoothHCICommands.h"
/** Current processing state of the HCI portion of the Bluetooth stack. */
uint8_t Bluetooth_HCIProcessingState;
/** 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.
*/
@ -48,7 +41,7 @@ void Bluetooth_HCITask(void)
{
BT_HCICommand_Header_t HCICommandHeader;
switch (Bluetooth_HCIProcessingState)
switch (Bluetooth_State.CurrentHCIState)
{
case Bluetooth_ProcessEvents:
Pipe_SelectPipe(BLUETOOTH_EVENTS_PIPE);
@ -74,7 +67,19 @@ void Bluetooth_HCITask(void)
{
case EVENT_COMMAND_COMPLETE:
BT_HCI_DEBUG(1, "<< Command Complete");
Bluetooth_HCIProcessingState = Bluetooth_HCINextState;
/* 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");
@ -82,7 +87,7 @@ void Bluetooth_HCITask(void)
/* If the execution of a command failed, reset the stack */
if (((BT_HCIEvent_CommandStatus_t*)&EventParams)->Status)
Bluetooth_HCIProcessingState = Bluetooth_Init;
Bluetooth_State.CurrentHCIState = Bluetooth_Init;
break;
case EVENT_CONNECTION_REQUEST:
BT_HCI_DEBUG(1, "<< Connection Request");
@ -97,11 +102,11 @@ void Bluetooth_HCITask(void)
/* 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_HCIProcessingState = (Bluetooth_Connection.IsConnected || !(IsACLConnection) ||
!(Bluetooth_ConnectionRequest(Bluetooth_TempDeviceAddress))) ?
Bluetooth_Conn_RejectConnection : Bluetooth_Conn_AcceptConnection;
Bluetooth_State.CurrentHCIState = (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) ?
BT_HCI_DEBUG(2, "-- Connection %S", (Bluetooth_State.CurrentHCIState == Bluetooth_Conn_RejectConnection) ?
PSTR("REJECTED") : PSTR("ACCEPTED"));
break;
@ -113,7 +118,7 @@ void Bluetooth_HCITask(void)
&((BT_HCIEvent_PinCodeReq_t*)&EventParams)->RemoteAddress,
sizeof(Bluetooth_TempDeviceAddress));
Bluetooth_HCIProcessingState = Bluetooth_Conn_SendPINCode;
Bluetooth_State.CurrentHCIState = Bluetooth_Conn_SendPINCode;
break;
case EVENT_LINK_KEY_REQUEST:
BT_HCI_DEBUG(1, "<< Link Key Request");
@ -123,7 +128,7 @@ void Bluetooth_HCITask(void)
&((BT_HCIEvent_LinkKeyReq_t*)&EventParams)->RemoteAddress,
sizeof(Bluetooth_TempDeviceAddress));
Bluetooth_HCIProcessingState = Bluetooth_Conn_SendLinkKeyNAK;
Bluetooth_State.CurrentHCIState = Bluetooth_Conn_SendLinkKeyNAK;
break;
case EVENT_CONNECTION_COMPLETE:
BT_HCI_DEBUG(1, "<< Connection Complete");
@ -148,7 +153,7 @@ void Bluetooth_HCITask(void)
Bluetooth_DisconnectionComplete();
Bluetooth_HCIProcessingState = Bluetooth_Init;
Bluetooth_State.CurrentHCIState = Bluetooth_Init;
break;
}
}
@ -159,62 +164,94 @@ void Bluetooth_HCITask(void)
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:
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,
};
/* Send the command to reset the bluetooth dongle controller */
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:
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,
};
/* 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_HCINextState = Bluetooth_Init_SetDeviceClass;
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;
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: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_CLASS_OF_DEVICE},
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_HCINextState = Bluetooth_Init_WriteScanEnable;
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;
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: OGF_CTRLR_BASEBAND, OCF: OCF_CTRLR_BASEBAND_WRITE_SCAN_ENABLE},
OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_SCAN_ENABLE),
ParameterLength: 1,
};
@ -223,15 +260,24 @@ void Bluetooth_HCITask(void)
/* Send the command to set the remote device scanning mode */
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:
BT_HCI_DEBUG(1, "# Accept Connection");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_ACCEPT_CONNECTION_REQUEST},
OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_ACCEPT_CONNECTION_REQUEST),
ParameterLength: sizeof(BT_HCICommand_AcceptConnectionReq_t),
};
@ -245,14 +291,14 @@ void Bluetooth_HCITask(void)
/* Send the command to accept the remote connection request */
Bluetooth_SendHCICommand(&HCICommandHeader, &AcceptConnectionParams, sizeof(BT_HCICommand_AcceptConnectionReq_t));
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Conn_RejectConnection:
BT_HCI_DEBUG(1, "# Reject Connection");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: {OGF: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_REJECT_CONNECTION_REQUEST},
OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_REJECT_CONNECTION_REQUEST),
ParameterLength: sizeof(BT_HCICommand_RejectConnectionReq_t),
};
@ -265,14 +311,14 @@ void Bluetooth_HCITask(void)
/* Send the command to reject the remote connection request */
Bluetooth_SendHCICommand(&HCICommandHeader, &RejectConnectionParams, sizeof(BT_HCICommand_RejectConnectionReq_t));
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Conn_SendPINCode:
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},
OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_PIN_CODE_REQUEST_REPLY),
ParameterLength: sizeof(BT_HCICommand_PinCodeResp_t),
};
@ -286,14 +332,14 @@ void Bluetooth_HCITask(void)
/* Send the command to transmit the device's local PIN number for authentication */
Bluetooth_SendHCICommand(&HCICommandHeader, &PINCodeRequestParams, sizeof(BT_HCICommand_PinCodeResp_t));
Bluetooth_HCIProcessingState = Bluetooth_ProcessEvents;
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: OGF_LINK_CONTROL, OCF: OCF_LINK_CONTROL_LINK_KEY_REQUEST_NEG_REPLY},
OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_LINK_KEY_REQUEST_NEG_REPLY),
ParameterLength: sizeof(BT_HCICommand_LinkKeyNAKResp_t),
};
@ -304,7 +350,7 @@ void Bluetooth_HCITask(void)
/* 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;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
}
}