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Add RFCOMM channel configuration parsing and channel states to the incomplete BluetoothHost demo.

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Add missing BT_* prefix to the Bluetooth stack's channel state enum values.
This commit is contained in:
Dean Camera 2010-06-15 09:32:35 +00:00
parent dcedde0123
commit 3125fd5f4f
6 changed files with 189 additions and 87 deletions
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94
Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMMControl.c
View file

@ -42,29 +42,33 @@ void RFCOMM_ProcessControlCommand(const uint8_t* Command, Bluetooth_Channel_t* c
{
const RFCOMM_Command_t* CommandHeader = (const RFCOMM_Command_t*)Command;
const uint8_t* CommandData = (const uint8_t*)Command + sizeof(RFCOMM_Command_t);
uint16_t ControlDataLen = RFCOMM_GetFrameDataLength(CommandData);
/* Adjust the command data pointer to skip over the variable size field */
CommandData += (ControlDataLen < 128) ? 1 : 2;
switch (CommandHeader->Command)
{
case RFCOMM_Control_Test:
RFCOMM_ProcessTestCommand(CommandHeader, CommandData);
RFCOMM_ProcessTestCommand(CommandHeader, CommandData, Channel);
break;
case RFCOMM_Control_FlowControlEnable:
RFCOMM_ProcessFCECommand(CommandHeader, CommandData);
RFCOMM_ProcessFCECommand(CommandHeader, CommandData, Channel);
break;
case RFCOMM_Control_FlowControlDisable:
RFCOMM_ProcessFCDCommand(CommandHeader, CommandData);
RFCOMM_ProcessFCDCommand(CommandHeader, CommandData, Channel);
break;
case RFCOMM_Control_ModemStatus:
RFCOMM_ProcessMSCommand(CommandHeader, CommandData);
RFCOMM_ProcessMSCommand(CommandHeader, CommandData, Channel);
break;
case RFCOMM_Control_RemotePortNegotiation:
RFCOMM_ProcessRPNCommand(CommandHeader, CommandData);
RFCOMM_ProcessRPNCommand(CommandHeader, CommandData, Channel);
break;
case RFCOMM_Control_RemoteLineStatus:
RFCOMM_ProcessRLSCommand(CommandHeader, CommandData);
RFCOMM_ProcessRLSCommand(CommandHeader, CommandData, Channel);
break;
case RFCOMM_Control_DLCParameterNegotiation:
RFCOMM_ProcessDPNCommand(CommandHeader, CommandData);
RFCOMM_ProcessDPNCommand(CommandHeader, CommandData, Channel);
break;
default:
BT_RFCOMM_DEBUG(1, "<< Unknown Command");
@ -72,49 +76,101 @@ void RFCOMM_ProcessControlCommand(const uint8_t* Command, Bluetooth_Channel_t* c
}
}
static void RFCOMM_ProcessTestCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData)
static void RFCOMM_ProcessTestCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData,
Bluetooth_Channel_t* const Channel)
{
BT_RFCOMM_DEBUG(1, "<< TEST Command");
}
static void RFCOMM_ProcessFCECommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData)
static void RFCOMM_ProcessFCECommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData,
Bluetooth_Channel_t* const Channel)
{
BT_RFCOMM_DEBUG(1, "<< FCE Command");
}
static void RFCOMM_ProcessFCDCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData)
static void RFCOMM_ProcessFCDCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData,
Bluetooth_Channel_t* const Channel)
{
BT_RFCOMM_DEBUG(1, "<< FCD Command");
}
static void RFCOMM_ProcessMSCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData)
static void RFCOMM_ProcessMSCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData,
Bluetooth_Channel_t* const Channel)
{
BT_RFCOMM_DEBUG(1, "<< MS Command");
}
static void RFCOMM_ProcessRPNCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData)
static void RFCOMM_ProcessRPNCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData,
Bluetooth_Channel_t* const Channel)
{
BT_RFCOMM_DEBUG(1, "<< RPN Command");
}
static void RFCOMM_ProcessRLSCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData)
static void RFCOMM_ProcessRLSCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData,
Bluetooth_Channel_t* const Channel)
{
BT_RFCOMM_DEBUG(1, "<< RLS Command");
}
static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData)
static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData,
Bluetooth_Channel_t* const Channel)
{
const RFCOMM_DPN_Parameters_t* Params = (const RFCOMM_DPN_Parameters_t*)CommandData;
BT_RFCOMM_DEBUG(1, "<< DPN Command");
BT_RFCOMM_DEBUG(2, "-- Config DLCI: 0x%02X", Params->DLCI);
/* Skip over the first data byte (Length field) since its size and value are fixed */
RFCOMM_Channel_t* RFCOMMChannel = RFCOMM_GetChannelData(CommandData[2]);
/* Ignore parameter negotiations to the control channel */
if (Params->DLCI == RFCOMM_CONTROL_DLCI)
return;
/* Retrieve existing channel configuration data, if already opened */
RFCOMM_Channel_t* RFCOMMChannel = RFCOMM_GetChannelData(Params->DLCI);
/* Check if the channel has no corresponding entry - remote did not open it first */
if (RFCOMMChannel == NULL)
{
// TODO: Channel does not exist - create it
/* Find a free entry in the RFCOMM channel multiplexer state array */
for (uint8_t i = 0; i < RFCOMM_MAX_OPEN_CHANNELS; i++)
{
/* If the channel's DLCI is zero, the channel state entry is free */
if (!(RFCOMM_Channels[i].DLCI))
{
RFCOMMChannel = &RFCOMM_Channels[i];
RFCOMMChannel->DLCI = Params->DLCI;
break;
}
}
/* No free entry was found, discard the request */
if (RFCOMMChannel == NULL)
{
BT_RFCOMM_DEBUG(2, "-- No Free Channel");
return;
}
}
RFCOMMChannel->Configured = true;
/* Save the new channel configuration */
RFCOMMChannel->State = RFCOMM_Channel_Open;
RFCOMMChannel->Priority = Params->Priority;
RFCOMMChannel->UseUIFrames = (Params->FrameType != 0);
RFCOMMChannel->RemoteMTU = Params->MaximumFrameSize;
// TODO: Read in channel data, ACK request
struct
{
RFCOMM_Command_t CommandHeader;
uint8_t Length;
RFCOMM_DPN_Parameters_t Params;
} DPNResponse;
/* Fill out the DPN response data */
DPNResponse.CommandHeader.Command = CommandHeader->Command;
DPNResponse.CommandHeader.EA = true;
DPNResponse.Length = (sizeof(DPNResponse.Params) << 1) | 0x01;
DPNResponse.Params = *Params;
BT_RFCOMM_DEBUG(1, ">> DPN Response");
/* Send the PDN response to acknowledge the command */
RFCOMM_SendFrame(RFCOMM_CONTROL_DLCI, false, RFCOMM_Frame_UIH, sizeof(DPNResponse), &DPNResponse, Channel);
}