-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2010.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, distribute, and sell this \r
- software and its documentation for any purpose is hereby granted\r
- without fee, provided that the above copyright notice appear in \r
- all copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting \r
- documentation, and that the name of the author not be used in \r
- advertising or publicity pertaining to distribution of the \r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- *\r
- * RFCOMM layer module. This module manages the RFCOMM layer of the\r
- * stack, providing virtual serial port channels on top of the lower\r
- * L2CAP layer.\r
- */\r
-\r
-#define INCLUDE_FROM_RFCOMM_C\r
-#include "RFCOMM.h"\r
-\r
-/** 8-Bit CRC table used by the FCS field of each RFCOMM encoded frame, sourced from the ETSI TS 101 369 V7.2.0\r
- * specification document, upon which the RFCOMM specification is based.\r
- */\r
-const uint8_t CRC8_Table[256] PROGMEM =\r
- {\r
- 0x00, 0x91, 0xE3, 0x72, 0x07, 0x96, 0xE4, 0x75, 0x0E, 0x9F, 0xED, 0x7C, 0x09, 0x98, 0xEA, 0x7B,\r
- 0x1C, 0x8D, 0xFF, 0x6E, 0x1B, 0x8A, 0xF8, 0x69, 0x12, 0x83, 0xF1, 0x60, 0x15, 0x84, 0xF6, 0x67,\r
- 0x38, 0xA9, 0xDB, 0x4A, 0x3F, 0xAE, 0xDC, 0x4D, 0x36, 0xA7, 0xD5, 0x44, 0x31, 0xA0, 0xD2, 0x43,\r
- 0x24, 0xB5, 0xC7, 0x56, 0x23, 0xB2, 0xC0, 0x51, 0x2A, 0xBB, 0xC9, 0x58, 0x2D, 0xBC, 0xCE, 0x5F,\r
- 0x70, 0xE1, 0x93, 0x02, 0x77, 0xE6, 0x94, 0x05, 0x7E, 0xEF, 0x9D, 0x0C, 0x79, 0xE8, 0x9A, 0x0B,\r
- 0x6C, 0xFD, 0x8F, 0x1E, 0x6B, 0xFA, 0x88, 0x19, 0x62, 0xF3, 0x81, 0x10, 0x65, 0xF4, 0x86, 0x17,\r
- 0x48, 0xD9, 0xAB, 0x3A, 0x4F, 0xDE, 0xAC, 0x3D, 0x46, 0xD7, 0xA5, 0x34, 0x41, 0xD0, 0xA2, 0x33,\r
- 0x54, 0xC5, 0xB7, 0x26, 0x53, 0xC2, 0xB0, 0x21, 0x5A, 0xCB, 0xB9, 0x28, 0x5D, 0xCC, 0xBE, 0x2F,\r
- 0xE0, 0x71, 0x03, 0x92, 0xE7, 0x76, 0x04, 0x95, 0xEE, 0x7F, 0x0D, 0x9C, 0xE9, 0x78, 0x0A, 0x9B,\r
- 0xFC, 0x6D, 0x1F, 0x8E, 0xFB, 0x6A, 0x18, 0x89, 0xF2, 0x63, 0x11, 0x80, 0xF5, 0x64, 0x16, 0x87,\r
- 0xD8, 0x49, 0x3B, 0xAA, 0xDF, 0x4E, 0x3C, 0xAD, 0xD6, 0x47, 0x35, 0xA4, 0xD1, 0x40, 0x32, 0xA3,\r
- 0xC4, 0x55, 0x27, 0xB6, 0xC3, 0x52, 0x20, 0xB1, 0xCA, 0x5B, 0x29, 0xB8, 0xCD, 0x5C, 0x2E, 0xBF,\r
- 0x90, 0x01, 0x73, 0xE2, 0x97, 0x06, 0x74, 0xE5, 0x9E, 0x0F, 0x7D, 0xEC, 0x99, 0x08, 0x7A, 0xEB,\r
- 0x8C, 0x1D, 0x6F, 0xFE, 0x8B, 0x1A, 0x68, 0xF9, 0x82, 0x13, 0x61, 0xF0, 0x85, 0x14, 0x66, 0xF7,\r
- 0xA8, 0x39, 0x4B, 0xDA, 0xAF, 0x3E, 0x4C, 0xDD, 0xA6, 0x37, 0x45, 0xD4, 0xA1, 0x30, 0x42, 0xD3,\r
- 0xB4, 0x25, 0x57, 0xC6, 0xB3, 0x22, 0x50, 0xC1, 0xBA, 0x2B, 0x59, 0xC8, 0xBD, 0x2C, 0x5E, 0xCF\r
- };\r
-\r
-/** Initializes the RFCOMM service, ready for new connections from a SDP client. */\r
-void RFCOMM_Initialize(void)\r
-{\r
- /* Not currently used */\r
-}\r
-\r
-void RFCOMM_ProcessPacket(void* Data, Bluetooth_Channel_t* const Channel)\r
-{\r
- const RFCOMM_Header_t* FrameHeader = (const RFCOMM_Header_t*)Data;\r
- \r
- /* Decode the RFCOMM frame type from the header */\r
- switch (FrameHeader->Control & ~FRAME_POLL_FINAL)\r
- {\r
- case RFCOMM_Frame_SABM:\r
- RFCOMM_ProcessSABM(FrameHeader, Channel);\r
- break;\r
- case RFCOMM_Frame_UA:\r
- RFCOMM_ProcessUA(FrameHeader, Channel);\r
- break;\r
- case RFCOMM_Frame_DM:\r
- RFCOMM_ProcessDM(FrameHeader, Channel);\r
- break;\r
- case RFCOMM_Frame_DISC:\r
- RFCOMM_ProcessDISC(FrameHeader, Channel);\r
- break;\r
- case RFCOMM_Frame_UIH:\r
- RFCOMM_ProcessUIH(FrameHeader, Channel);\r
- break;\r
- default:\r
- BT_RFCOMM_DEBUG(1, "<< Unknown Frame Type");\r
- break;\r
- }\r
-}\r
-\r
-static void RFCOMM_ProcessSABM(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)\r
-{\r
- BT_RFCOMM_DEBUG(1, "<< SABM Received");\r
- BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);\r
- \r
- // TODO: Reset channel send/receive state here\r
- \r
- struct\r
- {\r
- RFCOMM_Header_t FrameHeader;\r
- uint8_t FrameLength;\r
- uint8_t FCS;\r
- } ResponsePacket;\r
- \r
- /* Copy over the same frame header as the sent packet to copy the logical RFCOMM channel address */\r
- ResponsePacket.FrameHeader.Address = FrameHeader->Address;\r
- \r
- /* Set the frame type to an Unnumbered Acknowledgement to acknowledge the SABM request */\r
- ResponsePacket.FrameHeader.Control = RFCOMM_Frame_UA;\r
- \r
- /* Set the length to 0 (LSB indicates end of 8-bit length field) */\r
- ResponsePacket.FrameLength = 0x01;\r
- \r
- /* Calculate the frame checksum from all fields except the FCS field itself */\r
- ResponsePacket.FCS = RFCOMM_GetFCSValue(&ResponsePacket, sizeof(ResponsePacket) - sizeof(ResponsePacket.FCS));\r
- \r
- BT_RFCOMM_DEBUG(1, ">> UA Sent");\r
-\r
- /* Send the completed response packet to the sender */\r
- Bluetooth_SendPacket(&ResponsePacket, sizeof(ResponsePacket), Channel);\r
-}\r
-\r
-static void RFCOMM_ProcessUA(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)\r
-{\r
- const uint8_t* CurrBufferPos = ((const uint8_t*)FrameHeader + sizeof(RFCOMM_Header_t));\r
-\r
- BT_RFCOMM_DEBUG(1, "<< UA Received");\r
- BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);\r
-}\r
-\r
-static void RFCOMM_ProcessDM(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)\r
-{\r
- const uint8_t* CurrBufferPos = ((const uint8_t*)FrameHeader + sizeof(RFCOMM_Header_t));\r
-\r
- BT_RFCOMM_DEBUG(1, "<< DM Received");\r
- BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);\r
-}\r
-\r
-static void RFCOMM_ProcessDISC(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)\r
-{\r
- const uint8_t* CurrBufferPos = ((const uint8_t*)FrameHeader + sizeof(RFCOMM_Header_t));\r
-\r
- BT_RFCOMM_DEBUG(1, "<< DISC Received");\r
- BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);\r
-}\r
-\r
-static void RFCOMM_ProcessUIH(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)\r
-{\r
- const uint8_t* CurrBufferPos = ((const uint8_t*)FrameHeader + sizeof(RFCOMM_Header_t));\r
-\r
- BT_RFCOMM_DEBUG(1, "<< UIH Received");\r
- BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);\r
-}\r
-\r
-static uint8_t RFCOMM_GetFCSValue(const void* FrameStart, uint16_t Length)\r
-{\r
- const uint8_t* CurrPos = FrameStart;\r
- uint8_t FCS = 0xFF;\r
- \r
- while (Length--)\r
- FCS = pgm_read_byte(CRC8_Table[FCS ^ *(CurrPos++)]);\r
-\r
- return ~FCS;\r
-}\r
-\r
-static uint16_t RFCOMM_GetFrameDataLength(const uint8_t** BufferPos)\r
-{\r
- uint8_t FirstOctet = *((*BufferPos)++);\r
- uint8_t SecondOctet = 0;\r
- \r
- if (!(FirstOctet & 0x01))\r
- SecondOctet = *((*BufferPos)++);\r
- \r
- return (((uint16_t)SecondOctet << 7) | (FirstOctet >> 1));\r
-}\r
-\r
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ *
+ * RFCOMM layer module. This module manages the RFCOMM layer of the
+ * stack, providing virtual serial port channels on top of the lower
+ * L2CAP layer.
+ */
+
+#define INCLUDE_FROM_RFCOMM_C
+#include "RFCOMM.h"
+
+/** 8-Bit CRC table used by the FCS field of each RFCOMM encoded frame, sourced from the ETSI TS 101 369 V7.2.0
+ * specification document, upon which the RFCOMM specification is based.
+ */
+const uint8_t CRC8_Table[256] PROGMEM =
+ {
+ 0x00, 0x91, 0xE3, 0x72, 0x07, 0x96, 0xE4, 0x75, 0x0E, 0x9F, 0xED, 0x7C, 0x09, 0x98, 0xEA, 0x7B,
+ 0x1C, 0x8D, 0xFF, 0x6E, 0x1B, 0x8A, 0xF8, 0x69, 0x12, 0x83, 0xF1, 0x60, 0x15, 0x84, 0xF6, 0x67,
+ 0x38, 0xA9, 0xDB, 0x4A, 0x3F, 0xAE, 0xDC, 0x4D, 0x36, 0xA7, 0xD5, 0x44, 0x31, 0xA0, 0xD2, 0x43,
+ 0x24, 0xB5, 0xC7, 0x56, 0x23, 0xB2, 0xC0, 0x51, 0x2A, 0xBB, 0xC9, 0x58, 0x2D, 0xBC, 0xCE, 0x5F,
+ 0x70, 0xE1, 0x93, 0x02, 0x77, 0xE6, 0x94, 0x05, 0x7E, 0xEF, 0x9D, 0x0C, 0x79, 0xE8, 0x9A, 0x0B,
+ 0x6C, 0xFD, 0x8F, 0x1E, 0x6B, 0xFA, 0x88, 0x19, 0x62, 0xF3, 0x81, 0x10, 0x65, 0xF4, 0x86, 0x17,
+ 0x48, 0xD9, 0xAB, 0x3A, 0x4F, 0xDE, 0xAC, 0x3D, 0x46, 0xD7, 0xA5, 0x34, 0x41, 0xD0, 0xA2, 0x33,
+ 0x54, 0xC5, 0xB7, 0x26, 0x53, 0xC2, 0xB0, 0x21, 0x5A, 0xCB, 0xB9, 0x28, 0x5D, 0xCC, 0xBE, 0x2F,
+ 0xE0, 0x71, 0x03, 0x92, 0xE7, 0x76, 0x04, 0x95, 0xEE, 0x7F, 0x0D, 0x9C, 0xE9, 0x78, 0x0A, 0x9B,
+ 0xFC, 0x6D, 0x1F, 0x8E, 0xFB, 0x6A, 0x18, 0x89, 0xF2, 0x63, 0x11, 0x80, 0xF5, 0x64, 0x16, 0x87,
+ 0xD8, 0x49, 0x3B, 0xAA, 0xDF, 0x4E, 0x3C, 0xAD, 0xD6, 0x47, 0x35, 0xA4, 0xD1, 0x40, 0x32, 0xA3,
+ 0xC4, 0x55, 0x27, 0xB6, 0xC3, 0x52, 0x20, 0xB1, 0xCA, 0x5B, 0x29, 0xB8, 0xCD, 0x5C, 0x2E, 0xBF,
+ 0x90, 0x01, 0x73, 0xE2, 0x97, 0x06, 0x74, 0xE5, 0x9E, 0x0F, 0x7D, 0xEC, 0x99, 0x08, 0x7A, 0xEB,
+ 0x8C, 0x1D, 0x6F, 0xFE, 0x8B, 0x1A, 0x68, 0xF9, 0x82, 0x13, 0x61, 0xF0, 0x85, 0x14, 0x66, 0xF7,
+ 0xA8, 0x39, 0x4B, 0xDA, 0xAF, 0x3E, 0x4C, 0xDD, 0xA6, 0x37, 0x45, 0xD4, 0xA1, 0x30, 0x42, 0xD3,
+ 0xB4, 0x25, 0x57, 0xC6, 0xB3, 0x22, 0x50, 0xC1, 0xBA, 0x2B, 0x59, 0xC8, 0xBD, 0x2C, 0x5E, 0xCF
+ };
+
+/** Initializes the RFCOMM service, ready for new connections from a SDP client. */
+void RFCOMM_Initialize(void)
+{
+ /* Not currently used */
+}
+
+void RFCOMM_ProcessPacket(void* Data, Bluetooth_Channel_t* const Channel)
+{
+ const RFCOMM_Header_t* FrameHeader = (const RFCOMM_Header_t*)Data;
+
+ /* Decode the RFCOMM frame type from the header */
+ switch (FrameHeader->Control & ~FRAME_POLL_FINAL)
+ {
+ case RFCOMM_Frame_SABM:
+ RFCOMM_ProcessSABM(FrameHeader, Channel);
+ break;
+ case RFCOMM_Frame_UA:
+ RFCOMM_ProcessUA(FrameHeader, Channel);
+ break;
+ case RFCOMM_Frame_DM:
+ RFCOMM_ProcessDM(FrameHeader, Channel);
+ break;
+ case RFCOMM_Frame_DISC:
+ RFCOMM_ProcessDISC(FrameHeader, Channel);
+ break;
+ case RFCOMM_Frame_UIH:
+ RFCOMM_ProcessUIH(FrameHeader, Channel);
+ break;
+ default:
+ BT_RFCOMM_DEBUG(1, "<< Unknown Frame Type");
+ break;
+ }
+}
+
+static void RFCOMM_ProcessSABM(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)
+{
+ BT_RFCOMM_DEBUG(1, "<< SABM Received");
+ BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);
+
+ // TODO: Reset channel send/receive state here
+
+ struct
+ {
+ RFCOMM_Header_t FrameHeader;
+ uint8_t FrameLength;
+ uint8_t FCS;
+ } ResponsePacket;
+
+ /* Copy over the same frame header as the sent packet to copy the logical RFCOMM channel address */
+ ResponsePacket.FrameHeader.Address = FrameHeader->Address;
+
+ /* Set the frame type to an Unnumbered Acknowledgement to acknowledge the SABM request */
+ ResponsePacket.FrameHeader.Control = RFCOMM_Frame_UA;
+
+ /* Set the length to 0 (LSB indicates end of 8-bit length field) */
+ ResponsePacket.FrameLength = 0x01;
+
+ /* Calculate the frame checksum from all fields except the FCS field itself */
+ ResponsePacket.FCS = RFCOMM_GetFCSValue(&ResponsePacket, sizeof(ResponsePacket) - sizeof(ResponsePacket.FCS));
+
+ BT_RFCOMM_DEBUG(1, ">> UA Sent");
+
+ /* Send the completed response packet to the sender */
+ Bluetooth_SendPacket(&ResponsePacket, sizeof(ResponsePacket), Channel);
+}
+
+static void RFCOMM_ProcessUA(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)
+{
+ const uint8_t* CurrBufferPos = ((const uint8_t*)FrameHeader + sizeof(RFCOMM_Header_t));
+
+ BT_RFCOMM_DEBUG(1, "<< UA Received");
+ BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);
+}
+
+static void RFCOMM_ProcessDM(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)
+{
+ const uint8_t* CurrBufferPos = ((const uint8_t*)FrameHeader + sizeof(RFCOMM_Header_t));
+
+ BT_RFCOMM_DEBUG(1, "<< DM Received");
+ BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);
+}
+
+static void RFCOMM_ProcessDISC(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)
+{
+ const uint8_t* CurrBufferPos = ((const uint8_t*)FrameHeader + sizeof(RFCOMM_Header_t));
+
+ BT_RFCOMM_DEBUG(1, "<< DISC Received");
+ BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);
+}
+
+static void RFCOMM_ProcessUIH(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel)
+{
+ const uint8_t* CurrBufferPos = ((const uint8_t*)FrameHeader + sizeof(RFCOMM_Header_t));
+
+ BT_RFCOMM_DEBUG(1, "<< UIH Received");
+ BT_RFCOMM_DEBUG(2, "-- Address 0x%02X", FrameHeader->Address);
+}
+
+static uint8_t RFCOMM_GetFCSValue(const void* FrameStart, uint16_t Length)
+{
+ const uint8_t* CurrPos = FrameStart;
+ uint8_t FCS = 0xFF;
+
+ while (Length--)
+ FCS = pgm_read_byte(CRC8_Table[FCS ^ *(CurrPos++)]);
+
+ return ~FCS;
+}
+
+static uint16_t RFCOMM_GetFrameDataLength(const uint8_t** BufferPos)
+{
+ uint8_t FirstOctet = *((*BufferPos)++);
+ uint8_t SecondOctet = 0;
+
+ if (!(FirstOctet & 0x01))
+ SecondOctet = *((*BufferPos)++);
+
+ return (((uint16_t)SecondOctet << 7) | (FirstOctet >> 1));
+}
+
projects / pub / USBasp.git / blobdiff