Add RFCOMM service routine, to send pending configuration requests on RFCOMM channels...

[pub/USBasp.git] / Demos / Host / Incomplete / BluetoothHost / Lib / RFCOMM.c

diff --git a/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c b/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c
index c7b3e8d..271f2dc 100644 (file)
--- a/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c
+++ b/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c
@@ -73,6 +73,32 @@ void RFCOMM_Initialize(void)
          RFCOMM_Channels[i].State = RFCOMM_Channel_Closed;
 }
 
          RFCOMM_Channels[i].State = RFCOMM_Channel_Closed;
 }
 

+void RFCOMM_ServiceChannels(Bluetooth_Channel_t* const BluetoothChannel)
+{
+       for (uint8_t i = 0; i < RFCOMM_MAX_OPEN_CHANNELS; i++)
+       {
+               RFCOMM_Channel_t* RFCOMMChannel = &RFCOMM_Channels[i];
+
+               if (RFCOMMChannel->State == RFCOMM_Channel_Configure)
+               {
+                       /* Check if the local signals have not yet been sent on the current channel */
+                       if (!(RFCOMMChannel->ConfigFlags & RFCOMM_CONFIG_LOCALSIGNALSSENT))
+                       {
+                               /* Indicate that the local signals have been sent, transmit them to the remote device */
+                               RFCOMMChannel->ConfigFlags |= RFCOMM_CONFIG_LOCALSIGNALSSENT;
+                               RFCOMM_SendChannelSignals(RFCOMMChannel, BluetoothChannel);
+                       }
+
+                       /* If signals have been configured in both directions, progress to the open state */
+                       if ((RFCOMMChannel->ConfigFlags & (RFCOMM_CONFIG_REMOTESIGNALS | RFCOMM_CONFIG_LOCALSIGNALS)) ==
+                                                         (RFCOMM_CONFIG_REMOTESIGNALS | RFCOMM_CONFIG_LOCALSIGNALS))
+                       {
+                               RFCOMMChannel->State = RFCOMM_Channel_Open;
+                       }
+               }
+       }
+}
+

 void RFCOMM_ProcessPacket(void* Data, Bluetooth_Channel_t* const Channel)
 {
        const RFCOMM_Header_t* FrameHeader  = (const RFCOMM_Header_t*)Data;
 void RFCOMM_ProcessPacket(void* Data, Bluetooth_Channel_t* const Channel)
 {
        const RFCOMM_Header_t* FrameHeader  = (const RFCOMM_Header_t*)Data;


@@ -103,6 +129,28 @@ void RFCOMM_ProcessPacket(void* Data, Bluetooth_Channel_t* const Channel)
        }
 }
 
        }
 }
 

+void RFCOMM_SendChannelSignals(const RFCOMM_Channel_t* const RFCOMMChannel, Bluetooth_Channel_t* const BluetoothChannel)
+{
+       BT_RFCOMM_DEBUG(1, ">> MSC Command");
+       BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", RFCOMMChannel->DLCI);
+
+       struct
+       {
+               RFCOMM_Command_t        CommandHeader;
+               uint8_t                 Length;
+               RFCOMM_MSC_Parameters_t Params;
+       } MSCommand;
+       
+       MSCommand.CommandHeader      = (RFCOMM_Command_t){.Command = RFCOMM_Control_ModemStatus, .EA = true, .CR = true};
+       MSCommand.Length             = (sizeof(MSCommand.Params) << 1) | 0x01;
+       MSCommand.Params.Channel     = (RFCOMM_Address_t){.DLCI = RFCOMMChannel->DLCI, .EA = true, .CR = true};
+       MSCommand.Params.Signals     = RFCOMMChannel->Local.Signals;
+       MSCommand.Params.BreakSignal = RFCOMMChannel->Local.BreakSignal;
+
+       /* Send the MSC command to the remote device */
+       RFCOMM_SendFrame(RFCOMM_CONTROL_DLCI, true, RFCOMM_Frame_UIH, sizeof(MSCommand), &MSCommand, BluetoothChannel); 
+}
+

 RFCOMM_Channel_t* RFCOMM_GetChannelData(const uint8_t DLCI)
 {
        /* Search through the RFCOMM channel list, looking for the specified channel */
 RFCOMM_Channel_t* RFCOMM_GetChannelData(const uint8_t DLCI)
 {
        /* Search through the RFCOMM channel list, looking for the specified channel */


@@ -155,12 +203,7 @@ void RFCOMM_SendFrame(const uint8_t DLCI, const bool CommandResponse, const uint
        
        /* Set the frame header values to the specified address and frame type */
        ResponsePacket.FrameHeader.Control = Control;
        
        /* Set the frame header values to the specified address and frame type */
        ResponsePacket.FrameHeader.Control = Control;

-       ResponsePacket.FrameHeader.Address = (RFCOMM_Address_t)
-               {
-                       .EA   = true,
-                       .CR   = CommandResponse,
-                       .DLCI = DLCI,
-               };
+       ResponsePacket.FrameHeader.Address = (RFCOMM_Address_t){.DLCI = DLCI, .EA   = true, .CR = CommandResponse};

        
        /* Set the lower 7 bits of the packet length */
        ResponsePacket.Size[0] = (DataLen << 1);
        
        /* Set the lower 7 bits of the packet length */
        ResponsePacket.Size[0] = (DataLen << 1);


@@ -224,34 +267,46 @@ static void RFCOMM_ProcessSABM(const RFCOMM_Address_t* const FrameAddress, Bluet
 {
        BT_RFCOMM_DEBUG(1, "<< SABM Received");
        BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
 {
        BT_RFCOMM_DEBUG(1, "<< SABM Received");
        BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);

+
+       RFCOMM_Channel_t* RFCOMMChannel;

        
        

-       /* Find a free entry in the RFCOMM channel multiplexer state array */
-       for (uint8_t i = 0; i < RFCOMM_MAX_OPEN_CHANNELS; i++)
+       if (FrameAddress->DLCI != RFCOMM_CONTROL_DLCI)

        {
        {

-               RFCOMM_Channel_t* CurrRFCOMMChannel = &RFCOMM_Channels[i];
-       
-               /* If the channel's state is closed, the channel state entry is free */
-               if (CurrRFCOMMChannel->State == RFCOMM_Channel_Closed)
+               /* Find a free entry in the RFCOMM channel multiplexer state array */
+               for (uint8_t i = 0; i < RFCOMM_MAX_OPEN_CHANNELS; i++)

                {
                {

-                       CurrRFCOMMChannel->DLCI     = FrameAddress->DLCI;
-                       CurrRFCOMMChannel->State    = RFCOMM_Channel_Open;
-                       CurrRFCOMMChannel->Priority = 7 + (CurrRFCOMMChannel->DLCI >> 3) + ((CurrRFCOMMChannel->DLCI >> 3) * 7);
-                       CurrRFCOMMChannel->MTU      = 0xFFFF;
-                       CurrRFCOMMChannel->Remote.Signals     = 0 | (1 << 0);
-                       CurrRFCOMMChannel->Remote.BreakSignal = 0 | (1 << 0);
-                       CurrRFCOMMChannel->Local.Signals      = RFCOMM_SIGNAL_RTC | RFCOMM_SIGNAL_RTR | RFCOMM_SIGNAL_DV | (1 << 0);
-                       CurrRFCOMMChannel->Local.BreakSignal  = 0 | (1 << 0);
-               
-                       BT_RFCOMM_DEBUG(1, ">> UA Sent");
-                       RFCOMM_SendFrame(FrameAddress->DLCI, true, (RFCOMM_Frame_UA | FRAME_POLL_FINAL), 0, NULL, Channel);
-                       return;
+                       /* If the channel's state is closed, the channel state entry is free */
+                       if (RFCOMM_Channels[i].State == RFCOMM_Channel_Closed)
+                       {
+                               RFCOMMChannel                     = &RFCOMM_Channels[i];
+                               RFCOMMChannel->DLCI               = FrameAddress->DLCI;
+                               RFCOMMChannel->State              = RFCOMM_Channel_Configure;
+                               RFCOMMChannel->Priority           = 7 + (RFCOMMChannel->DLCI & 0xF8);
+                               RFCOMMChannel->MTU                = 0xFFFF;
+                               RFCOMMChannel->Remote.Signals     = 0 | (1 << 0);
+                               RFCOMMChannel->Remote.BreakSignal = 0 | (1 << 0);
+                               RFCOMMChannel->Local.Signals      = RFCOMM_SIGNAL_RTC | RFCOMM_SIGNAL_RTR | RFCOMM_SIGNAL_DV | (1 << 0);
+                               RFCOMMChannel->Local.BreakSignal  = 0 | (1 << 0);
+                               RFCOMMChannel->ConfigFlags        = 0;
+                               break;
+                       }

                }
        }
                }
        }

+       
+       if (RFCOMMChannel || (FrameAddress->DLCI == RFCOMM_CONTROL_DLCI))
+       {
+               BT_RFCOMM_DEBUG(1, ">> UA Sent");
+               
+               /* Free channel found, or request was to the control channel - accept SABM by sending a UA frame */
+               RFCOMM_SendFrame(FrameAddress->DLCI, true, (RFCOMM_Frame_UA | FRAME_POLL_FINAL), 0, NULL, Channel);
+       }
+       else
+       {
+               BT_RFCOMM_DEBUG(1, ">> DM Sent");

 
 

-       BT_RFCOMM_DEBUG(1, ">> DM Sent");
-
-       /* No free channel in the multiplexer - decline the SABM by sending a DM frame */
-       RFCOMM_SendFrame(FrameAddress->DLCI, true, (RFCOMM_Frame_DM | FRAME_POLL_FINAL), 0, NULL, Channel);
+               /* No free channel in the multiplexer - decline the SABM by sending a DM frame */
+               RFCOMM_SendFrame(FrameAddress->DLCI, true, (RFCOMM_Frame_DM | FRAME_POLL_FINAL), 0, NULL, Channel);
+       }

 }
 
 static void RFCOMM_ProcessUA(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)
 }
 
 static void RFCOMM_ProcessUA(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)