ahoneybun/qmk_firmware
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Rename RFCOMM_GetFrameDataLength() to RFCOMM_GetVariableFieldValue() as it is multi-purpose, and modify it to move the buffer pointer itself rather than relying on the caller.

Browse source 
Make RFCOMM_GetChannelData() return NULL if the required channel DLCI is found, but the channel is closed.

Add modem signals (BREAK, DCD, etc.) to the channel state array, and add in a handler for the Modem Status RFCOMM control command.
This commit is contained in:
Dean Camera 2010-06-15 11:28:15 +00:00
parent f5d079462d
commit 13ea700b35
4 changed files with 100 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

67
Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMMControl.c
View file

@ -42,10 +42,7 @@ 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;
uint8_t CommandDataLen = RFCOMM_GetVariableFieldValue(&CommandData);
switch (CommandHeader->Command)
{
@ -59,7 +56,7 @@ void RFCOMM_ProcessControlCommand(const uint8_t* Command, Bluetooth_Channel_t* c
RFCOMM_ProcessFCDCommand(CommandHeader, CommandData, Channel);
break;
case RFCOMM_Control_ModemStatus:
RFCOMM_ProcessMSCommand(CommandHeader, CommandData, Channel);
RFCOMM_ProcessMSCommand(CommandHeader, CommandDataLen, CommandData, Channel);
break;
case RFCOMM_Control_RemotePortNegotiation:
RFCOMM_ProcessRPNCommand(CommandHeader, CommandData, Channel);
@ -94,10 +91,48 @@ static void RFCOMM_ProcessFCDCommand(const RFCOMM_Command_t* const CommandHeader
BT_RFCOMM_DEBUG(1, "<< FCD Command");
}
static void RFCOMM_ProcessMSCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData,
Bluetooth_Channel_t* const Channel)
static void RFCOMM_ProcessMSCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t CommandDataLen,
const uint8_t* CommandData, Bluetooth_Channel_t* const Channel)
{
const RFCOMM_MS_Parameters_t* Params = (const RFCOMM_MS_Parameters_t*)CommandData;
BT_RFCOMM_DEBUG(1, "<< MS Command");
BT_RFCOMM_DEBUG(2, "-- DLCI: 0x%02X", Params->Channel.DLCI);
/* Ignore status flags sent to the control channel */
if (Params->Channel.DLCI == RFCOMM_CONTROL_DLCI)
return;
/* Retrieve existing channel configuration data, if already opened */
RFCOMM_Channel_t* RFCOMMChannel = RFCOMM_GetChannelData(Params->Channel.DLCI);
/* If the channel does not exist, abort */
if (RFCOMMChannel == NULL)
return;
/* Save the new channel signals to the channel state structure */
RFCOMMChannel->Signals = Params->Signals;
/* If the command contains the optional break signals field, store the value */
if (CommandDataLen == sizeof(RFCOMM_MS_Parameters_t))
RFCOMMChannel->BreakSignals = Params->BreakSignals;
struct
{
RFCOMM_Command_t CommandHeader;
uint8_t Length;
RFCOMM_MS_Parameters_t Params;
} MSResponse;
/* Fill out the MS response data */
MSResponse.CommandHeader = (RFCOMM_Command_t){.Command = RFCOMM_Control_ModemStatus, .EA = true};
MSResponse.Length = (CommandDataLen << 1) | 0x01;
MSResponse.Params = *Params;
BT_RFCOMM_DEBUG(1, ">> MS Response");
/* Send the PDN response to acknowledge the command */
RFCOMM_SendFrame(RFCOMM_CONTROL_DLCI, false, RFCOMM_Frame_UIH, sizeof(MSResponse), &MSResponse, Channel);
}
static void RFCOMM_ProcessRPNCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData,
@ -118,7 +153,7 @@ static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* const CommandHeader
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);
BT_RFCOMM_DEBUG(2, "-- DLCI: 0x%02X", Params->DLCI);
/* Ignore parameter negotiations to the control channel */
if (Params->DLCI == RFCOMM_CONTROL_DLCI)
@ -136,8 +171,10 @@ static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* const CommandHeader
/* 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;
RFCOMMChannel = &RFCOMM_Channels[i];
RFCOMMChannel->DLCI = Params->DLCI;
RFCOMMChannel->Signals = 0;
RFCOMMChannel->BreakSignals = 0;
break;
}
}
@ -154,7 +191,7 @@ static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* const CommandHeader
RFCOMMChannel->State = RFCOMM_Channel_Open;
RFCOMMChannel->Priority = Params->Priority;
RFCOMMChannel->UseUIFrames = (Params->FrameType != 0);
RFCOMMChannel->RemoteMTU = Params->MaximumFrameSize;
RFCOMMChannel->MTU = Params->MaximumFrameSize;
struct
{
@ -164,10 +201,10 @@ static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* const CommandHeader
} 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;
DPNResponse.CommandHeader = (RFCOMM_Command_t){.Command = RFCOMM_Control_DLCParameterNegotiation, .EA = true};
DPNResponse.Length = (sizeof(DPNResponse.Params) << 1) | 0x01;
DPNResponse.Params = *Params;
DPNResponse.Params.ConvergenceLayer = 0x00; // TODO: Enable credit based transaction support
BT_RFCOMM_DEBUG(1, ">> DPN Response");