diff options
author | Dean Camera <dean@fourwalledcubicle.com> | 2010-06-06 08:33:14 +0000 |
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committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-06-06 08:33:14 +0000 |
commit | 2dabb4e55f1c362f63ef181469f529867ce8b03b (patch) | |
tree | 87d6296e7752782129509d4c835659c4211740f6 /Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c | |
parent | efbedcfa54c8f014fe983f52fd54111bcae77c07 (diff) | |
download | lufa-2dabb4e55f1c362f63ef181469f529867ce8b03b.tar.gz lufa-2dabb4e55f1c362f63ef181469f529867ce8b03b.tar.bz2 lufa-2dabb4e55f1c362f63ef181469f529867ce8b03b.zip |
Add the svn:eol-style property onto new files which where missing it to ensure uniform line endings.
Diffstat (limited to 'Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c')
-rw-r--r-- | Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c | 366 |
1 files changed, 183 insertions, 183 deletions
diff --git a/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c b/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c index 510160629..a57f3a44d 100644 --- a/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c +++ b/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.c @@ -1,183 +1,183 @@ -/*
- 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));
-}
-
+/* + 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)); +} + |