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-rw-r--r--Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c198
1 files changed, 72 insertions, 126 deletions
diff --git a/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c b/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c
index 60cce8484..f9aff8eb2 100644
--- a/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c
+++ b/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c
@@ -106,133 +106,32 @@ void RFCOMM_ProcessPacket(void* Data, Bluetooth_Channel_t* const Channel)
}
}
-static void RFCOMM_ProcessDM(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)
-{
- BT_RFCOMM_DEBUG(1, "<< DM Received");
- BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
-}
-
-static void RFCOMM_ProcessDISC(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)
-{
- BT_RFCOMM_DEBUG(1, "<< DISC Received");
- BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
-
- // TODO: Close down connection
-
- BT_RFCOMM_DEBUG(1, ">> UA Sent");
- RFCOMM_SendFrame(FrameAddress->DLCI, true, (RFCOMM_Frame_UA | FRAME_POLL_FINAL), 0, NULL, Channel);
-}
-
-static void RFCOMM_ProcessSABM(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)
+RFCOMM_Channel_t* RFCOMM_GetChannelData(const uint8_t DLCI)
{
- BT_RFCOMM_DEBUG(1, "<< SABM Received");
- BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
-
- /* Find a free entry in the RFCOMM channel multiplexer state array */
for (uint8_t i = 0; i < RFCOMM_MAX_OPEN_CHANNELS; i++)
{
RFCOMM_Channel_t* CurrRFCOMMChannel = &RFCOMM_Channels[i];
- /* If the channel's DLCI is zero, the channel state entry is free */
- if (!(CurrRFCOMMChannel->DLCI))
- {
- CurrRFCOMMChannel->DLCI = FrameAddress->DLCI;
- CurrRFCOMMChannel->Configured = false;
-
- BT_RFCOMM_DEBUG(1, ">> UA Sent");
- RFCOMM_SendFrame(FrameAddress->DLCI, true, (RFCOMM_Frame_UA | FRAME_POLL_FINAL), 0, NULL, Channel);
- return;
- }
+ if (CurrRFCOMMChannel->DLCI == DLCI)
+ return CurrRFCOMMChannel;
}
-
- 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);
-}
-
-static void RFCOMM_ProcessUA(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)
-{
- BT_RFCOMM_DEBUG(1, "<< UA Received");
- BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
-}
-
-static void RFCOMM_ProcessUIH(const RFCOMM_Address_t* const FrameAddress, const uint16_t FrameLength,
- const uint8_t* FrameData, Bluetooth_Channel_t* const Channel)
-{
- BT_RFCOMM_DEBUG(1, "<< UIH Received");
- BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
- BT_RFCOMM_DEBUG(2, "-- Length 0x%02X", FrameLength);
- if (FrameAddress->DLCI == RFCOMM_CONTROL_DLCI)
- {
- RFCOMM_ProcessControlCommand(FrameData, Channel);
- return;
- }
-
- // TODO: Handle regular channel data here
+ return NULL;
}
-static void RFCOMM_ProcessControlCommand(const uint8_t* Command, Bluetooth_Channel_t* const Channel)
+uint16_t RFCOMM_GetFrameDataLength(const uint8_t* const BufferPos)
{
- const RFCOMM_Command_t* CommandHeader = (const RFCOMM_Command_t*)Command;
- const uint8_t* CommandData = (const uint8_t*)Command + sizeof(RFCOMM_Command_t);
-
- switch (CommandHeader->Command)
- {
- case RFCOMM_Control_Test:
- BT_RFCOMM_DEBUG(1, "<< TEST Command");
- break;
- case RFCOMM_Control_FlowControlEnable:
- BT_RFCOMM_DEBUG(1, "<< FCE Command");
- break;
- case RFCOMM_Control_FlowControlDisable:
- BT_RFCOMM_DEBUG(1, "<< FCD Command");
- break;
- case RFCOMM_Control_ModemStatus:
- BT_RFCOMM_DEBUG(1, "<< MS Command");
- break;
- case RFCOMM_Control_RemotePortNegotiation:
- BT_RFCOMM_DEBUG(1, "<< RPN Command");
- break;
- case RFCOMM_Control_RemoteLineStatus:
- BT_RFCOMM_DEBUG(1, "<< RLS Command");
- break;
- case RFCOMM_Control_DLCParameterNegotiation:
- BT_RFCOMM_DEBUG(1, "<< DPN Command");
-
- // TODO - Set channel state
-// RFCOMM_Channel_t* RFCOMMChannel = RFCOMM_GetChannelData(
-// RFCOMMChannel->Configured = true;
-
- // TODO - send ACK/NAK response
- break;
- default:
- BT_RFCOMM_DEBUG(1, "<< Unknown Command");
-
- struct
- {
- RFCOMM_Command_t Header;
- RFCOMM_Command_t Command;
- } Response =
- {
- .Header = (RFCOMM_Command_t)
- {
- .Command = RFCOMM_Control_NonSupportedCommand,
- .CR = true,
- .EA = true,
- },
-
- .Command = *CommandHeader,
- };
-
- RFCOMM_SendFrame(RFCOMM_CONTROL_DLCI, false, RFCOMM_Frame_UIH, sizeof(RFCOMM_Command_t), &Response, Channel);
- break;
- }
+ uint8_t FirstOctet = BufferPos[0];
+ uint8_t SecondOctet = 0;
+
+ if (!(FirstOctet & 0x01))
+ SecondOctet = BufferPos[1];
+
+ return (((uint16_t)SecondOctet << 7) | FirstOctet >> 1);
}
-static void RFCOMM_SendFrame(const uint8_t DLCI, const bool CommandResponse, const uint8_t Control, const uint16_t DataLen,
- const void* Data, Bluetooth_Channel_t* const Channel)
+void RFCOMM_SendFrame(const uint8_t DLCI, const bool CommandResponse, const uint8_t Control, const uint16_t DataLen,
+ const void* Data, Bluetooth_Channel_t* const Channel)
{
struct
{
@@ -287,26 +186,73 @@ static uint8_t RFCOMM_GetFCSValue(const void* FrameStart, uint8_t Length)
return ~FCS;
}
-static uint16_t RFCOMM_GetFrameDataLength(const uint8_t* const BufferPos)
+static void RFCOMM_ProcessDM(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)
{
- uint8_t FirstOctet = BufferPos[0];
- uint8_t SecondOctet = 0;
-
- if (!(FirstOctet & 0x01))
- SecondOctet = BufferPos[1];
+ BT_RFCOMM_DEBUG(1, "<< DM Received");
+ BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
+}
+
+static void RFCOMM_ProcessDISC(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)
+{
+ BT_RFCOMM_DEBUG(1, "<< DISC Received");
+ BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
+
+ RFCOMM_Channel_t* RFCOMMChannel = RFCOMM_GetChannelData(FrameAddress->DLCI);
- return (((uint16_t)SecondOctet << 7) | FirstOctet >> 1);
+ /* If the requested channel is currently open, destroy it */
+ if (RFCOMMChannel != NULL)
+ RFCOMMChannel->DLCI = 0x00;
+
+ BT_RFCOMM_DEBUG(1, ">> UA Sent");
+ RFCOMM_SendFrame(FrameAddress->DLCI, true, (RFCOMM_Frame_UA | FRAME_POLL_FINAL), 0, NULL, Channel);
}
-RFCOMM_Channel_t* RFCOMM_GetChannelData(const uint8_t DLCI)
+static void RFCOMM_ProcessSABM(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)
{
+ BT_RFCOMM_DEBUG(1, "<< SABM Received");
+ BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
+
+ /* Find a free entry in the RFCOMM channel multiplexer state array */
for (uint8_t i = 0; i < RFCOMM_MAX_OPEN_CHANNELS; i++)
{
RFCOMM_Channel_t* CurrRFCOMMChannel = &RFCOMM_Channels[i];
- if (CurrRFCOMMChannel->DLCI == DLCI)
- return CurrRFCOMMChannel;
+ /* If the channel's DLCI is zero, the channel state entry is free */
+ if (!(CurrRFCOMMChannel->DLCI))
+ {
+ CurrRFCOMMChannel->DLCI = FrameAddress->DLCI;
+ CurrRFCOMMChannel->Configured = false;
+
+ BT_RFCOMM_DEBUG(1, ">> UA Sent");
+ RFCOMM_SendFrame(FrameAddress->DLCI, true, (RFCOMM_Frame_UA | FRAME_POLL_FINAL), 0, NULL, Channel);
+ return;
+ }
}
+
+ 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);
+}
+
+static void RFCOMM_ProcessUA(const RFCOMM_Address_t* const FrameAddress, Bluetooth_Channel_t* const Channel)
+{
+ BT_RFCOMM_DEBUG(1, "<< UA Received");
+ BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
+}
+
+static void RFCOMM_ProcessUIH(const RFCOMM_Address_t* const FrameAddress, const uint16_t FrameLength,
+ const uint8_t* FrameData, Bluetooth_Channel_t* const Channel)
+{
+ BT_RFCOMM_DEBUG(1, "<< UIH Received");
+ BT_RFCOMM_DEBUG(2, "-- DLCI 0x%02X", FrameAddress->DLCI);
+ BT_RFCOMM_DEBUG(2, "-- Length 0x%02X", FrameLength);
- return NULL;
+ if (FrameAddress->DLCI == RFCOMM_CONTROL_DLCI)
+ {
+ RFCOMM_ProcessControlCommand(FrameData, Channel);
+ return;
+ }
+
+ // TODO: Handle regular channel data here
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 20:14:59 +0000