amiro-blt / Target / Source / xcp.c @ d7238092
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/************************************************************************************//** |
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* \file Source\xcp.c
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* \brief XCP 1.0 protocol core source file.
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* \ingroup Core
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* \internal
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*----------------------------------------------------------------------------------------
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* C O P Y R I G H T
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*----------------------------------------------------------------------------------------
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* Copyright (c) 2011 by Feaser http://www.feaser.com All rights reserved
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*
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*----------------------------------------------------------------------------------------
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* L I C E N S E
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*----------------------------------------------------------------------------------------
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* This file is part of OpenBLT. OpenBLT is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* OpenBLT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with OpenBLT.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* A special exception to the GPL is included to allow you to distribute a combined work
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* that includes OpenBLT without being obliged to provide the source code for any
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* proprietary components. The exception text is included at the bottom of the license
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* file <license.html>.
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*
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* \endinternal
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****************************************************************************************/
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/****************************************************************************************
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* Include files
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****************************************************************************************/
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#include "boot.h" /* bootloader generic header */ |
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#include <helper.h> |
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/****************************************************************************************
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* Defines
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****************************************************************************************/
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/** \brief XCP protocol layer version number (16-bit). */
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#define XCP_VERSION_PROTOCOL_LAYER (0x0100) |
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/** \brief XCP transport layer version number (16-bit). */
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#define XCP_VERSION_TRANSPORT_LAYER (0x0100) |
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/* XCP packet identifiers */
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/** \brief Command response packet identifier. */
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#define XCP_PID_RES (0xff) |
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/** \brief Error packet identifier. */
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#define XCP_PID_ERR (0xfe) |
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/* XCP error codes */
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/** \brief Cmd processor synchronization error code. */
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#define XCP_ERR_CMD_SYNCH (0x00) |
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/** \brief Command was not executed error code. */
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#define XCP_ERR_CMD_BUSY (0x10) |
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/** \brief Unknown or unsupported command error code. */
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#define XCP_ERR_CMD_UNKNOWN (0x20) |
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/** \brief Parameter out of range error code. */
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#define XCP_ERR_OUT_OF_RANGE (0x22) |
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/** \brief Protected error code. Seed/key required. */
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#define XCP_ERR_ACCESS_LOCKED (0x25) |
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/** \brief Cal page not valid error code. */
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#define XCP_ERR_PAGE_NOT_VALID (0x26) |
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/** \brief Sequence error code. */
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#define XCP_ERR_SEQUENCE (0x29) |
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/** \brief Generic error code. */
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#define XCP_ERR_GENERIC (0x31) |
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/* XCP command codes */
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/** \brief CONNECT command code. */
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#define XCP_CMD_CONNECT (0xff) |
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/** \brief DISCONNECT command code. */
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#define XCP_CMD_DISCONNECT (0xfe) |
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/** \brief GET_STATUS command code. */
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#define XCP_CMD_GET_STATUS (0xfd) |
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/** \brief SYNCH command code. */
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#define XCP_CMD_SYNCH (0xfc) |
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/** \brief GET_ID command code. */
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#define XCP_CMD_GET_ID (0xfa) |
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/** \brief GET_SEED command code. */
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#define XCP_CMD_GET_SEED (0xf8) |
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/** \brief UNLOCK command code. */
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#define XCP_CMD_UNLOCK (0xf7) |
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/** \brief SET_MTA command code. */
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#define XCP_CMD_SET_MTA (0xf6) |
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/** \brief UPLOAD command code. */
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#define XCP_CMD_UPLOAD (0xf5) |
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/** \brief SHORT_UPLOAD command code. */
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#define XCP_CMD_SHORT_UPLOAD (0xf4) |
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/** \brief BUILD_CHECKSUM command code. */
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#define XCP_CMD_BUILD_CHECKSUM (0xf3) |
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/** \brief DOWNLOAD command code. */
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#define XCP_CMD_DOWNLOAD (0xf0) |
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/** \brief DOWNLOAD_MAX command code. */
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#define XCP_CMD_DOWLOAD_MAX (0xee) |
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/** \brief SET_CALPAGE command code. */
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#define XCP_CMD_SET_CAL_PAGE (0xeb) |
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/** \brief GET_CALPAGE command code. */
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#define XCP_CMD_GET_CAL_PAGE (0xea) |
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/** \brief PROGRAM_START command code. */
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#define XCP_CMD_PROGRAM_START (0xd2) |
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/** \brief PROGRAM_CLEAR command code. */
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#define XCP_CMD_PROGRAM_CLEAR (0xd1) |
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/** \brief PROGRAM command code. */
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#define XCP_CMD_PROGRAM (0xd0) |
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/** \brief PROGRAM_RESET command code. */
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#define XCP_CMD_PROGRAM_RESET (0xcf) |
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/** \brief PROGRAM_PREPARE command code. */
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#define XCP_CMD_PROGRAM_PREPARE (0xcc) |
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/** \brief PROGRAM_MAX command code. */
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#define XCP_CMD_PROGRAM_MAX (0xc9) |
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/****************************************************************************************
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* Type definitions
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****************************************************************************************/
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/** \brief Struture type for grouping XCP internal module information. */
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typedef struct |
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{
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blt_int8u connected; /**< connection established */
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#if (BOOT_GATE_ENABLE > 0) |
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blt_int32u other_connection; /**< connection to other device established */
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#endif
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#if (BOOTLOADER_OF_MAIN_DEVICE > 0) |
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blt_bool wasMainConnection; /**< connection to serialboot (0x00) established */
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#endif
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blt_int8u oldData[BOOT_COM_RX_MAX_DATA]; /**< old packet data buffer */
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blt_int8u protection; /**< protection state */
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blt_int8u s_n_k_resource; /**< for seed/key sequence */
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blt_int8u ctoData[BOOT_COM_RX_MAX_DATA]; /**< cto packet data buffer */
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blt_int8u ctoPending; /**< cto transmission pending flag */
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blt_int16s ctoLen; /**< cto current packet length */
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blt_int32u mta; /**< memory transfer address */
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} tXcpInfo; |
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/****************************************************************************************
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* Function prototypes
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****************************************************************************************/
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/* transport layer specific functions */
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#if (BOOT_GATE_ENABLE > 0) |
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static void XcpTransmitPacket(blt_int8u *data, blt_int16s len, blt_bool fromGate); |
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#else
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static void XcpTransmitPacket(blt_int8u *data, blt_int16s len); |
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#endif /* BOOT_GATE_ENABLE > 0 */ |
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/* application specific functions */
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static blt_int8u XcpComputeChecksum(blt_int32u address, blt_int32u length,
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blt_int32u *checksum); |
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#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
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static blt_int8u XcpGetSeed(blt_int8u resource, blt_int8u *seed);
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static blt_int8u XcpVerifyKey(blt_int8u resource, blt_int8u *key, blt_int8u len);
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#endif
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/* general utility functions */
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static void XcpProtectResources(void); |
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static void XcpSetCtoError(blt_int8u error); |
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/* XCP command processors */
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static void XcpCmdConnect(blt_int8u *data, blt_int16s dataLength); |
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static void XcpCmdDisconnect(blt_int8u *data); |
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static void XcpCmdGetStatus(blt_int8u *data); |
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static void XcpCmdSynch(blt_int8u *data); |
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static void XcpCmdGetId(blt_int8u *data); |
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static void XcpCmdSetMta(blt_int8u *data); |
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static void XcpCmdUpload(blt_int8u *data); |
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static void XcpCmdShortUpload(blt_int8u *data); |
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static void XcpCmdBuildCheckSum(blt_int8u *data); |
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#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
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static void XcpCmdGetSeed(blt_int8u *data); |
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static void XcpCmdUnlock(blt_int8u *data); |
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#endif
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#if (XCP_RES_CALIBRATION_EN == 1) |
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static void XcpCmdDownload(blt_int8u *data); |
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static void XcpCmdDownloadMax(blt_int8u *data); |
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#endif
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#if (XCP_RES_PAGING_EN == 1) |
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static void XcpCmdSetCalPage(blt_int8u *data); |
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static void XcpCmdGetCalPage(blt_int8u *data); |
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#endif
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#if (XCP_RES_PROGRAMMING_EN == 1) |
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static void XcpCmdProgramMax(blt_int8u *data); |
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static void XcpCmdProgram(blt_int8u *data); |
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static void XcpCmdProgramStart(blt_int8u *data); |
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static void XcpCmdProgramClear(blt_int8u *data); |
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static void XcpCmdProgramReset(blt_int8u *data); |
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static void XcpCmdProgramPrepare(blt_int8u *data); |
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#endif
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static void portedTransmission(blt_int8u *data); |
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/****************************************************************************************
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* Hook functions
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****************************************************************************************/
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#if (XCP_RES_PAGING_EN == 1) |
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extern blt_int8u XcpCalSetPageHook(blt_int8u segment, blt_int8u page);
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extern blt_int8u XcpCalGetPageHook(blt_int8u segment);
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#endif
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#if (XCP_CONNECT_MODE_HOOK_EN == 1) |
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extern blt_bool XcpConnectModeHook(blt_int8u mode);
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#endif
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#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
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extern blt_int8u XcpGetSeedHook(blt_int8u resource, blt_int8u *seed);
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extern blt_int8u XcpVerifyKeyHook(blt_int8u resource, blt_int8u *key, blt_int8u len);
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#endif
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/****************************************************************************************
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* External functions
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****************************************************************************************/
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#if (BOOT_COM_ENABLE == 0) |
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/* in case no internally supported communication interface is used, a custom
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* communication module can be added. In order to use the XCP protocol in the custom
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* communication module, this hook function needs to be implemented. In the XCP protocol
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* is not needed, then simply remove the xcp.c source from the project.
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*/
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extern void XcpTransmitPacketHook(blt_int8u *data, blt_int16u len); |
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#endif
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/****************************************************************************************
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* Local constants
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****************************************************************************************/
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/** \brief String buffer with station id. */
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static const blt_int8s xcpStationId[] = XCP_STATION_ID_STRING; |
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/****************************************************************************************
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* Local data definitions
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****************************************************************************************/
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/** \brief Local variable for storing XCP internal module info. */
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static tXcpInfo xcpInfo;
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/************************************************************************************//** |
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** \brief Initializes the XCP driver. Should be called once upon system startup.
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** \return none
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**
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****************************************************************************************/
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void XcpInit(void) |
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{
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/* reset xcp module info */
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xcpInfo.connected = 0;
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#if (BOOT_GATE_ENABLE > 0) |
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xcpInfo.other_connection = 0;
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#endif
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#if (BOOTLOADER_OF_MAIN_DEVICE > 0) |
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xcpInfo.wasMainConnection = BLT_FALSE; |
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#endif
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xcpInfo.mta = 0;
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xcpInfo.ctoPending = 0;
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xcpInfo.ctoLen = 0;
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xcpInfo.s_n_k_resource = 0;
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xcpInfo.protection = 0;
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} /*** end of XcpInit ***/
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/************************************************************************************//** |
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** \brief Obtains information about the XCP connection state.
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** \return BLT_TRUE is an XCP connection is established, BLT_FALSE otherwise.
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**
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****************************************************************************************/
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blt_bool XcpIsConnected(void)
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{
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#if (BOOT_GATE_ENABLE > 0) |
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if (xcpInfo.connected == 0 && xcpInfo.other_connection == 0) |
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#else
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if (xcpInfo.connected == 0) |
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#endif
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{
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return BLT_FALSE;
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} |
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return BLT_TRUE;
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} /*** end of XcpIsConnected ***/
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#if (BOOTLOADER_OF_MAIN_DEVICE > 0) |
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/************************************************************************************//** |
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** \brief Obtains information about the XCP main connection state.
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** \return BLT_TRUE is an XCP connection to main was established, BLT_FALSE otherwise.
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**
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****************************************************************************************/
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blt_bool XcpWasConnectedToMain(void)
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{
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return xcpInfo.wasMainConnection;
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} /*** end of XcpWasConnectedToMain ***/
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#endif
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/************************************************************************************//** |
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** \brief Informs the core that a pending packet transmission was completed by
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** the transport layer.
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** \return none
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**
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****************************************************************************************/
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void XcpPacketTransmitted(void) |
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{
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/* reset packet transmission pending flag */
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xcpInfo.ctoPending = 0;
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} /*** end of XcpPacketTransmitted ***/
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/************************************************************************************//** |
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** \brief Informs the core that a new packet was received by the transport layer.
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** \param data Pointer to byte buffer with packet data.
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** \param dataLength Number of data bytes that need to be transmitted.
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** \return none
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**
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****************************************************************************************/
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#if (BOOT_GATE_ENABLE > 0) |
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void XcpPacketReceived(blt_int8u *data, blt_int16s dataLength, blt_bool fromGate)
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#else
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void XcpPacketReceived(blt_int8u *data, blt_int16s dataLength)
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#endif /* BOOT_GATE_ENABLE > 0 */ |
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{
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/* was this a connect command? */
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if (data[0] == XCP_CMD_CONNECT) |
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{
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/* process the connect command */
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XcpCmdConnect(data, dataLength); |
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} |
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/* only continue if connected */
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else if (xcpInfo.connected == 1) |
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{
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switch (data[0]) |
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{
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case XCP_CMD_UPLOAD:
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XcpCmdUpload(data); |
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break;
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case XCP_CMD_SHORT_UPLOAD:
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XcpCmdShortUpload(data); |
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break;
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case XCP_CMD_SET_MTA:
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XcpCmdSetMta(data); |
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break;
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case XCP_CMD_BUILD_CHECKSUM:
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XcpCmdBuildCheckSum(data); |
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break;
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case XCP_CMD_GET_ID:
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XcpCmdGetId(data); |
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break;
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case XCP_CMD_SYNCH:
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XcpCmdSynch(data); |
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break;
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case XCP_CMD_GET_STATUS:
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XcpCmdGetStatus(data); |
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break;
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case XCP_CMD_DISCONNECT:
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XcpCmdDisconnect(data); |
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break;
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#if (XCP_RES_CALIBRATION_EN == 1) |
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case XCP_CMD_DOWNLOAD:
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XcpCmdDownload(data); |
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break;
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case XCP_CMD_DOWLOAD_MAX:
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XcpCmdDownloadMax(data); |
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break;
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#endif
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#if (XCP_RES_PROGRAMMING_EN == 1) |
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case XCP_CMD_PROGRAM_MAX:
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XcpCmdProgramMax(data); |
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break;
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case XCP_CMD_PROGRAM:
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XcpCmdProgram(data); |
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break;
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case XCP_CMD_PROGRAM_START:
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XcpCmdProgramStart(data); |
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break;
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case XCP_CMD_PROGRAM_CLEAR:
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XcpCmdProgramClear(data); |
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break;
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case XCP_CMD_PROGRAM_RESET:
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XcpCmdProgramReset(data); |
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break;
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case XCP_CMD_PROGRAM_PREPARE:
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XcpCmdProgramPrepare(data); |
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break;
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#endif
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#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
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case XCP_CMD_GET_SEED:
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XcpCmdGetSeed(data); |
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break;
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case XCP_CMD_UNLOCK:
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XcpCmdUnlock(data); |
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break;
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#endif
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#if (XCP_RES_PAGING_EN == 1) |
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case XCP_CMD_SET_CAL_PAGE:
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XcpCmdSetCalPage(data); |
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break;
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case XCP_CMD_GET_CAL_PAGE:
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XcpCmdGetCalPage(data); |
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break;
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#endif
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default:
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XcpSetCtoError(XCP_ERR_CMD_UNKNOWN); |
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break;
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} |
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} |
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#if (BOOT_GATE_ENABLE > 0) |
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/* check if there is still an other connection */
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else if (xcpInfo.other_connection > 0) { |
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/* Forwarding message */
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XcpPacketReceivedForwarding(data, dataLength); |
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return;
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} |
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#endif /* (BOOT_GATE_ENABLE > 0) */ |
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else
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{
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/* return to make sure response packet is not send because we are not connected */
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return;
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} |
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/* make sure the previous command was completed */
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if (xcpInfo.ctoPending == 1) |
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{
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/* command overrun occurred */
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XcpSetCtoError(XCP_ERR_CMD_BUSY); |
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} |
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/* send the response if it contains something */
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if (xcpInfo.ctoLen > 0) |
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{
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/* set cto packet transmission pending flag */
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xcpInfo.ctoPending = 1;
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/* transmit the cto response packet */
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#if (BOOT_GATE_ENABLE > 0) |
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XcpTransmitPacket(xcpInfo.ctoData, xcpInfo.ctoLen, fromGate); |
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#else
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XcpTransmitPacket(xcpInfo.ctoData, xcpInfo.ctoLen); |
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#endif /* BOOT_GATE_ENABLE > 0 */ |
| 442 |
} |
| 443 |
|
| 444 |
} /*** end of XcpPacketReceived ***/
|
| 445 |
|
| 446 |
|
| 447 |
|
| 448 |
#if (BOOT_GATE_ENABLE > 0) |
| 449 |
/************************************************************************************//** |
| 450 |
** \brief Forwards the packet to other device.
|
| 451 |
** \param data Pointer to the byte buffer with packet data.
|
| 452 |
** \param dataLength Number of data bytes that need to be transmitted.
|
| 453 |
** \return none
|
| 454 |
**
|
| 455 |
****************************************************************************************/
|
| 456 |
void XcpPacketReceivedForwarding(blt_int8u *data, blt_int16s dataLength) {
|
| 457 |
/* save id of connected device */
|
| 458 |
blt_int32u connectionTo = xcpInfo.other_connection; |
| 459 |
|
| 460 |
/* proof commands */
|
| 461 |
switch (data[0]) { |
| 462 |
/* if there is a disconnection command, everything else in xcp info
|
| 463 |
* has to be set on disconnection
|
| 464 |
*/
|
| 465 |
case XCP_CMD_DISCONNECT:
|
| 466 |
xcpInfo.other_connection = 0;
|
| 467 |
xcpInfo.connected = 0;
|
| 468 |
setLed(0);
|
| 469 |
break;
|
| 470 |
/* if there is a reset command, it has to be handled like a disconnection
|
| 471 |
* (above) because other devices shouldn't get the ability to reset
|
| 472 |
* themselves alone without any general reset command to all devices
|
| 473 |
*/
|
| 474 |
case XCP_CMD_PROGRAM_RESET:
|
| 475 |
xcpInfo.other_connection = 0;
|
| 476 |
xcpInfo.connected = 0;
|
| 477 |
setLed(0);
|
| 478 |
data[0] = XCP_CMD_DISCONNECT;
|
| 479 |
break;
|
| 480 |
default:
|
| 481 |
break;
|
| 482 |
} |
| 483 |
|
| 484 |
xcpInfo.ctoPending = 1;
|
| 485 |
#if (BOOT_DEBUGGING_UART2_ENABLE > 0) |
| 486 |
/* send debugging information */
|
| 487 |
BuildData(&debugDataTCan, data, (blt_int8u)dataLength); |
| 488 |
#endif
|
| 489 |
/* send packet direct with CAN */
|
| 490 |
GateTransmitPacketDirect(data, (blt_int8u)dataLength, connectionTo); |
| 491 |
} /*** end of XcpPacketReceivedForwarding ***/
|
| 492 |
|
| 493 |
|
| 494 |
/************************************************************************************//** |
| 495 |
** \brief Transmits the packet from gateway to com.
|
| 496 |
** \param data Pointer to the byte buffer with packet data.
|
| 497 |
** \param dataLength Number of data bytes that need to be transmitted.
|
| 498 |
** \return none
|
| 499 |
**
|
| 500 |
****************************************************************************************/
|
| 501 |
void XcpGatewayPacketReceived(blt_int8u *data, blt_int16s dataLength) {
|
| 502 |
xcpInfo.ctoPending = 1;
|
| 503 |
#if (BOOT_DEBUGGING_UART2_ENABLE > 0) |
| 504 |
/* send debugging information */
|
| 505 |
BuildData(&debugDataRCan, data, (blt_int8u)dataLength); |
| 506 |
#endif
|
| 507 |
/* send packet direct with UART */
|
| 508 |
ComTransmitPacketDirect(data, (blt_int8u)dataLength); |
| 509 |
} /*** end of XcpGatewayPacketReceived ***/
|
| 510 |
|
| 511 |
#endif /* (BOOT_GATE_ENABLE > 0) */ |
| 512 |
|
| 513 |
|
| 514 |
|
| 515 |
/************************************************************************************//** |
| 516 |
** \brief Transmits the packet using the xcp transport layer.
|
| 517 |
** \param data Pointer to the byte buffer with packet data.
|
| 518 |
** \param len Number of data bytes that need to be transmitted.
|
| 519 |
** \return none
|
| 520 |
**
|
| 521 |
****************************************************************************************/
|
| 522 |
|
| 523 |
#if (BOOT_GATE_ENABLE > 0) |
| 524 |
static void XcpTransmitPacket(blt_int8u *data, blt_int16s len, blt_bool fromGate) |
| 525 |
#else
|
| 526 |
static void XcpTransmitPacket(blt_int8u *data, blt_int16s len) |
| 527 |
#endif /* BOOT_GATE_ENABLE > 0 */ |
| 528 |
{
|
| 529 |
/* submit packet to the communication interface for transmission */
|
| 530 |
#if (BOOT_GATE_ENABLE > 0) |
| 531 |
if (fromGate == BLT_TRUE) {
|
| 532 |
GateTransmitPacket(data, len); |
| 533 |
return;
|
| 534 |
} |
| 535 |
#endif /* BOOT_GATE_ENABLE > 0 */ |
| 536 |
#if (BOOT_COM_ENABLE == 0) |
| 537 |
XcpTransmitPacketHook(data, len); |
| 538 |
#else
|
| 539 |
ComTransmitPacket(data, len); |
| 540 |
#endif
|
| 541 |
|
| 542 |
} /*** end of XcpTransmitPacket ***/
|
| 543 |
|
| 544 |
|
| 545 |
/************************************************************************************//** |
| 546 |
** \brief Called by the BUILD_CHECKSUM command to perform a checksum calculation
|
| 547 |
** over the specified memory region.
|
| 548 |
** \param address The start address of the memory region.
|
| 549 |
** \param length Length of the memory region in bytes.
|
| 550 |
** \param checksum Pointer to where the calculated checksum is to be stored.
|
| 551 |
** \return Checksum type that was used during the checksum calculation.
|
| 552 |
**
|
| 553 |
****************************************************************************************/
|
| 554 |
static blt_int8u XcpComputeChecksum(blt_int32u address, blt_int32u length,
|
| 555 |
blt_int32u *checksum) |
| 556 |
{
|
| 557 |
blt_int8u cs = 0;
|
| 558 |
|
| 559 |
/* this example computes the checksum using the add byte to byte algorithm */
|
| 560 |
while (length-- > 0) |
| 561 |
{
|
| 562 |
cs += *((blt_int8u*)(blt_addr)address); |
| 563 |
address++; |
| 564 |
} |
| 565 |
|
| 566 |
*checksum = cs; |
| 567 |
|
| 568 |
return XCP_CS_ADD11;
|
| 569 |
} /*** end of XcpComputeChecksum ***/
|
| 570 |
|
| 571 |
|
| 572 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 573 |
/************************************************************************************//** |
| 574 |
** \brief Provides a seed to the XCP master that will be used for the key
|
| 575 |
** generation when the master attempts to unlock the specified resource.
|
| 576 |
** Called by the GET_SEED command.
|
| 577 |
** \param resource Resource that the seed if requested for (XCP_RES_XXX).
|
| 578 |
** \param seed Pointer to byte buffer wher the seed will be stored.
|
| 579 |
** \return Length of the seed in bytes.
|
| 580 |
**
|
| 581 |
****************************************************************************************/
|
| 582 |
static blt_int8u XcpGetSeed(blt_int8u resource, blt_int8u *seed)
|
| 583 |
{
|
| 584 |
/* pass request on to the application through a hook function */
|
| 585 |
return XcpGetSeedHook(resource, seed);
|
| 586 |
} /*** end of XcpGetSeed ***/
|
| 587 |
|
| 588 |
|
| 589 |
/************************************************************************************//** |
| 590 |
** \brief Called by the UNLOCK command and checks if the key to unlock the
|
| 591 |
** specified resource was correct. If so, then the resource protection
|
| 592 |
** will be removed.
|
| 593 |
** \param resource resource to unlock (XCP_RES_XXX).
|
| 594 |
** \param key pointer to the byte buffer holding the key.
|
| 595 |
** \param len length of the key in bytes.
|
| 596 |
** \return 1 if the key was correct, 0 otherwise.
|
| 597 |
**
|
| 598 |
****************************************************************************************/
|
| 599 |
static blt_int8u XcpVerifyKey(blt_int8u resource, blt_int8u *key, blt_int8u len)
|
| 600 |
{
|
| 601 |
/* pass request on to the application through a hook function */
|
| 602 |
return XcpVerifyKeyHook(resource, key, len);
|
| 603 |
} /*** end of XcpVerifyKey ***/
|
| 604 |
#endif /* XCP_SEED_KEY_PROTECTION_EN == 1 */ |
| 605 |
|
| 606 |
|
| 607 |
/************************************************************************************//** |
| 608 |
** \brief Utility function to protects all the available resources.
|
| 609 |
** \return none
|
| 610 |
**
|
| 611 |
****************************************************************************************/
|
| 612 |
static void XcpProtectResources(void) |
| 613 |
{
|
| 614 |
xcpInfo.protection = 0;
|
| 615 |
|
| 616 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 617 |
#if (XCP_RES_CALIBRATION_EN == 1) |
| 618 |
xcpInfo.protection |= XCP_RES_CALPAG; |
| 619 |
#endif
|
| 620 |
|
| 621 |
#if (XCP_RES_PAGING_EN == 1) |
| 622 |
xcpInfo.protection |= XCP_RES_CALPAG; |
| 623 |
#endif
|
| 624 |
|
| 625 |
#if (XCP_RES_PROGRAMMING_EN == 1) |
| 626 |
xcpInfo.protection |= XCP_RES_PGM; |
| 627 |
#endif
|
| 628 |
|
| 629 |
#if (XCP_RES_DATA_ACQUISITION_EN == 1) |
| 630 |
xcpInfo.protection |= XCP_RES_DAQ; |
| 631 |
#endif
|
| 632 |
|
| 633 |
#if (XCP_RES_DATA_STIMULATION_EN == 1) |
| 634 |
xcpInfo.protection |= XCP_RES_STIM; |
| 635 |
#endif
|
| 636 |
#endif /* XCP_SEED_KEY_PROTECTION_EN == 1 */ |
| 637 |
} /*** end of XcpProtectResources ***/
|
| 638 |
|
| 639 |
|
| 640 |
/************************************************************************************//** |
| 641 |
** \brief Prepares the cto packet data for the specified error.
|
| 642 |
** \param error XCP error code (XCP_ERR_XXX).
|
| 643 |
** \return none
|
| 644 |
**
|
| 645 |
****************************************************************************************/
|
| 646 |
static void XcpSetCtoError(blt_int8u error) |
| 647 |
{
|
| 648 |
/* prepare the error packet */
|
| 649 |
xcpInfo.ctoData[0] = XCP_PID_ERR;
|
| 650 |
xcpInfo.ctoData[1] = error;
|
| 651 |
xcpInfo.ctoLen = 2;
|
| 652 |
} /*** end of XcpSetCtoError ***/
|
| 653 |
|
| 654 |
|
| 655 |
/************************************************************************************//** |
| 656 |
** \brief XCP command processor function which handles the CONNECT command as
|
| 657 |
** defined by the protocol.
|
| 658 |
** \param data Pointer to a byte buffer with the packet data.
|
| 659 |
** \return none
|
| 660 |
**
|
| 661 |
****************************************************************************************/
|
| 662 |
static void XcpCmdConnect(blt_int8u *data, blt_int16s dataLength) |
| 663 |
{
|
| 664 |
/* suppress compiler warning for unused parameter */
|
| 665 |
data = data; |
| 666 |
|
| 667 |
#if (BOOT_FILE_SYS_ENABLE > 0) |
| 668 |
/* reject the connection if the file module is not idle. this means that a firmware
|
| 669 |
* update from the locally attached storage is in progress
|
| 670 |
*/
|
| 671 |
if (FileIsIdle() == BLT_FALSE)
|
| 672 |
{
|
| 673 |
/* command not processed because we are busy */
|
| 674 |
XcpSetCtoError(XCP_ERR_CMD_BUSY); |
| 675 |
return;
|
| 676 |
} |
| 677 |
#endif
|
| 678 |
|
| 679 |
// #if (XCP_CONNECT_MODE_HOOK_EN == 1)
|
| 680 |
// /* pass on the mode to a application specific hook function. This function can determine
|
| 681 |
// * is the mode is supported or not. A return value of BLT_FALSE causes the CONNECT command
|
| 682 |
// * to be ignored. Note that this mode could potentially be used to specify a node ID in a
|
| 683 |
// * multi XCP slave system.
|
| 684 |
// */
|
| 685 |
// if (XcpConnectModeHook(data[1]) == BLT_FALSE)
|
| 686 |
// {
|
| 687 |
// /* set the response length to 0 to suppress it */
|
| 688 |
// xcpInfo.ctoLen = 0;
|
| 689 |
// return;
|
| 690 |
// }
|
| 691 |
// #endif
|
| 692 |
|
| 693 |
/* enable resource protection */
|
| 694 |
XcpProtectResources(); |
| 695 |
|
| 696 |
/* extract the device ID.
|
| 697 |
* NOTE: For legacy support the following code depends on the data length.
|
| 698 |
* If two bytes were received the system switches to legacy mode.
|
| 699 |
* In legacy mode, the device ID was only one byte.
|
| 700 |
*/
|
| 701 |
blt_int32u deviceID; |
| 702 |
if (dataLength == 2) { |
| 703 |
deviceID = ((blt_int32u)0 << 24) | \ |
| 704 |
((blt_int32u)0 << 16) | \ |
| 705 |
((blt_int32u)0 << 8) | \ |
| 706 |
((blt_int32u)data[1]);
|
| 707 |
} else if (dataLength == 5) { |
| 708 |
deviceID = ((blt_int32u)data[4] << 24) | \ |
| 709 |
((blt_int32u)data[3] << 16) | \ |
| 710 |
((blt_int32u)data[2] << 8) | \ |
| 711 |
((blt_int32u)data[1]);
|
| 712 |
} else {
|
| 713 |
blinkSOSinf(); |
| 714 |
} |
| 715 |
/* indicate that the connection is established */
|
| 716 |
#if (BOOT_GATE_ENABLE > 0) |
| 717 |
if (deviceID == 0 || |
| 718 |
deviceID == (blt_int32u)BOOT_COM_DEVICE_ID || |
| 719 |
deviceID == (blt_int32u)BOOT_COM_DEVICE_LEGACY_ID) {
|
| 720 |
#endif
|
| 721 |
xcpInfo.connected = 1;
|
| 722 |
setLed(1);
|
| 723 |
#if (BOOT_GATE_ENABLE > 0) |
| 724 |
xcpInfo.other_connection = 0;
|
| 725 |
#endif
|
| 726 |
#if (BOOTLOADER_OF_MAIN_DEVICE > 0) |
| 727 |
if (deviceID == 0x00) { |
| 728 |
xcpInfo.wasMainConnection = BLT_TRUE; |
| 729 |
} |
| 730 |
#endif
|
| 731 |
|
| 732 |
/* set packet id to command response packet */
|
| 733 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 734 |
|
| 735 |
/* report available resources */
|
| 736 |
xcpInfo.ctoData[1] = 0; |
| 737 |
#if (XCP_RES_CALIBRATION_EN == 1) |
| 738 |
xcpInfo.ctoData[1] |= XCP_RES_CALPAG;
|
| 739 |
#endif
|
| 740 |
|
| 741 |
#if (XCP_RES_PAGING_EN == 1) |
| 742 |
xcpInfo.ctoData[1] |= XCP_RES_CALPAG;
|
| 743 |
#endif
|
| 744 |
|
| 745 |
#if (XCP_RES_PROGRAMMING_EN == 1) |
| 746 |
xcpInfo.ctoData[1] |= XCP_RES_PGM;
|
| 747 |
#endif
|
| 748 |
|
| 749 |
#if (XCP_RES_DATA_ACQUISITION_EN == 1) |
| 750 |
xcpInfo.ctoData[1] |= XCP_RES_DAQ;
|
| 751 |
#endif
|
| 752 |
|
| 753 |
#if (XCP_RES_DATA_STIMULATION_EN == 1) |
| 754 |
xcpInfo.ctoData[1] |= XCP_RES_STIM;
|
| 755 |
#endif
|
| 756 |
|
| 757 |
/* report communication mode info. only byte granularity is supported */
|
| 758 |
xcpInfo.ctoData[2] = 0; |
| 759 |
/* configure for motorola or intel byte ordering */
|
| 760 |
xcpInfo.ctoData[2] |= XCP_MOTOROLA_FORMAT;
|
| 761 |
|
| 762 |
/* report max cto data length */
|
| 763 |
xcpInfo.ctoData[3] = (blt_int8u)XCP_CTO_PACKET_LEN;
|
| 764 |
|
| 765 |
/* report max dto data length */
|
| 766 |
#if (XCP_MOTOROLA_FORMAT == 0) |
| 767 |
xcpInfo.ctoData[4] = (blt_int8u)XCP_DTO_PACKET_LEN;
|
| 768 |
xcpInfo.ctoData[5] = (blt_int8u)(XCP_DTO_PACKET_LEN >> 8); |
| 769 |
#else
|
| 770 |
xcpInfo.ctoData[4] = (blt_int8u)(XCP_DTO_PACKET_LEN >> 8); |
| 771 |
xcpInfo.ctoData[5] = (blt_int8u)XCP_DTO_PACKET_LEN;
|
| 772 |
#endif
|
| 773 |
|
| 774 |
/* report msb of protocol layer version number */
|
| 775 |
xcpInfo.ctoData[6] = XCP_VERSION_PROTOCOL_LAYER >> 8; |
| 776 |
|
| 777 |
/* report msb of transport layer version number */
|
| 778 |
xcpInfo.ctoData[7] = XCP_VERSION_TRANSPORT_LAYER >> 8; |
| 779 |
|
| 780 |
/* set packet length */
|
| 781 |
xcpInfo.ctoLen = 8;
|
| 782 |
|
| 783 |
#if (BOOT_GATE_ENABLE > 0) |
| 784 |
} else {
|
| 785 |
xcpInfo.other_connection = deviceID; |
| 786 |
setLed(1);
|
| 787 |
xcpInfo.connected = 0;
|
| 788 |
XcpPacketReceivedForwarding(data, dataLength); |
| 789 |
xcpInfo.ctoLen = 0;
|
| 790 |
// TODO better cancel definition!
|
| 791 |
// if (xcpInfo.ctoLen == 0) {
|
| 792 |
// xcpInfo.other_connection = 0;
|
| 793 |
// }
|
| 794 |
} |
| 795 |
#endif
|
| 796 |
|
| 797 |
|
| 798 |
} /*** end of XcpCmdConnect ***/
|
| 799 |
|
| 800 |
|
| 801 |
/************************************************************************************//** |
| 802 |
** \brief XCP command processor function which handles the DISCONNECT command as
|
| 803 |
** defined by the protocol.
|
| 804 |
** \param data Pointer to a byte buffer with the packet data.
|
| 805 |
** \return none
|
| 806 |
**
|
| 807 |
****************************************************************************************/
|
| 808 |
static void XcpCmdDisconnect(blt_int8u *data) |
| 809 |
{
|
| 810 |
/* suppress compiler warning for unused parameter */
|
| 811 |
data = data; |
| 812 |
|
| 813 |
/* indicate that the xcp connection is disconnected */
|
| 814 |
xcpInfo.connected = 0;
|
| 815 |
#if (BOOT_GATE_ENABLE > 0) |
| 816 |
xcpInfo.other_connection = 0;
|
| 817 |
#endif
|
| 818 |
setLed(0);
|
| 819 |
|
| 820 |
/* enable resource protection */
|
| 821 |
XcpProtectResources(); |
| 822 |
|
| 823 |
/* set packet id to command response packet */
|
| 824 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 825 |
|
| 826 |
/* set packet length */
|
| 827 |
xcpInfo.ctoLen = 1;
|
| 828 |
|
| 829 |
} /*** end of XcpCmdDisconnect ***/
|
| 830 |
|
| 831 |
|
| 832 |
/************************************************************************************//** |
| 833 |
** \brief XCP command processor function which handles the GET_STATUS command as
|
| 834 |
** defined by the protocol.
|
| 835 |
** \param data Pointer to a byte buffer with the packet data.
|
| 836 |
** \return none
|
| 837 |
**
|
| 838 |
****************************************************************************************/
|
| 839 |
static void XcpCmdGetStatus(blt_int8u *data) |
| 840 |
{
|
| 841 |
/* suppress compiler warning for unused parameter */
|
| 842 |
data = data; |
| 843 |
|
| 844 |
/* set packet id to command response packet */
|
| 845 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 846 |
|
| 847 |
/* report session status */
|
| 848 |
xcpInfo.ctoData[1] = 0; |
| 849 |
|
| 850 |
/* report current resource protection status */
|
| 851 |
xcpInfo.ctoData[2] = xcpInfo.protection;
|
| 852 |
|
| 853 |
/* reset reserved and session configuration id values */
|
| 854 |
xcpInfo.ctoData[3] = 0; |
| 855 |
xcpInfo.ctoData[4] = 0; |
| 856 |
xcpInfo.ctoData[5] = 0; |
| 857 |
|
| 858 |
/* set packet length */
|
| 859 |
xcpInfo.ctoLen = 6;
|
| 860 |
} /*** end of XcpCmdGetStatus ***/
|
| 861 |
|
| 862 |
|
| 863 |
/************************************************************************************//** |
| 864 |
** \brief XCP command processor function which handles the SYNCH command as
|
| 865 |
** defined by the protocol.
|
| 866 |
** \param data Pointer to a byte buffer with the packet data.
|
| 867 |
** \return none
|
| 868 |
**
|
| 869 |
****************************************************************************************/
|
| 870 |
static void XcpCmdSynch(blt_int8u *data) |
| 871 |
{
|
| 872 |
/* suppress compiler warning for unused parameter */
|
| 873 |
data = data; |
| 874 |
|
| 875 |
/* synch requires a negative response */
|
| 876 |
XcpSetCtoError(XCP_ERR_CMD_SYNCH); |
| 877 |
} /*** end of XcpCmdSynch ***/
|
| 878 |
|
| 879 |
|
| 880 |
/************************************************************************************//** |
| 881 |
** \brief XCP command processor function which handles the GET_ID command as
|
| 882 |
** defined by the protocol.
|
| 883 |
** \param data Pointer to a byte buffer with the packet data.
|
| 884 |
** \return none
|
| 885 |
**
|
| 886 |
****************************************************************************************/
|
| 887 |
static void XcpCmdGetId(blt_int8u *data) |
| 888 |
{
|
| 889 |
/* suppress compiler warning for unused parameter */
|
| 890 |
data = data; |
| 891 |
|
| 892 |
/* set packet id to command response packet */
|
| 893 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 894 |
|
| 895 |
/* point mta to start of station id string */
|
| 896 |
xcpInfo.mta = (blt_int32u)&xcpStationId[0];
|
| 897 |
|
| 898 |
/* set station id mode to 0 */
|
| 899 |
xcpInfo.ctoData[1] = 0; |
| 900 |
|
| 901 |
/* reset reserved values */
|
| 902 |
xcpInfo.ctoData[2] = 0; |
| 903 |
xcpInfo.ctoData[3] = 0; |
| 904 |
|
| 905 |
/* store station id length (excl. null termination) for response packet */
|
| 906 |
*(blt_int32u*)&xcpInfo.ctoData[4] = (sizeof(xcpStationId)/sizeof(xcpStationId[0])) - 1; |
| 907 |
|
| 908 |
/* set packet length */
|
| 909 |
xcpInfo.ctoLen = 8;
|
| 910 |
} /*** end of XcpCmdGetId ***/
|
| 911 |
|
| 912 |
|
| 913 |
/************************************************************************************//** |
| 914 |
** \brief XCP command processor function which handles the SET_MTA command as
|
| 915 |
** defined by the protocol.
|
| 916 |
** \param data Pointer to a byte buffer with the packet data.
|
| 917 |
** \return none
|
| 918 |
**
|
| 919 |
****************************************************************************************/
|
| 920 |
static void XcpCmdSetMta(blt_int8u *data) |
| 921 |
{
|
| 922 |
/* set packet id to command response packet */
|
| 923 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 924 |
|
| 925 |
/* update mta. current implementation ignores address extension */
|
| 926 |
xcpInfo.mta = *(blt_int32u*)&data[4];
|
| 927 |
|
| 928 |
/* set packet length */
|
| 929 |
xcpInfo.ctoLen = 1;
|
| 930 |
} /*** end of XcpCmdSetMta ***/
|
| 931 |
|
| 932 |
|
| 933 |
/************************************************************************************//** |
| 934 |
** \brief XCP command processor function which handles the UPLOAD command as
|
| 935 |
** defined by the protocol.
|
| 936 |
** \param data Pointer to a byte buffer with the packet data.
|
| 937 |
** \return none
|
| 938 |
**
|
| 939 |
****************************************************************************************/
|
| 940 |
static void XcpCmdUpload(blt_int8u *data) |
| 941 |
{
|
| 942 |
/* validate length of upload request */
|
| 943 |
if (data[1] > (XCP_CTO_PACKET_LEN-1)) |
| 944 |
{
|
| 945 |
/* requested data length is too long */
|
| 946 |
XcpSetCtoError(XCP_ERR_OUT_OF_RANGE); |
| 947 |
return;
|
| 948 |
} |
| 949 |
|
| 950 |
/* copy the data from memory to the data packet */
|
| 951 |
CpuMemCopy(((blt_addr)(blt_int32u)&xcpInfo.ctoData[1]),(blt_addr)xcpInfo.mta, data[1]); |
| 952 |
|
| 953 |
/* set packet id to command response packet */
|
| 954 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 955 |
|
| 956 |
/* post increment the mta */
|
| 957 |
xcpInfo.mta += data[1];
|
| 958 |
|
| 959 |
/* set packet length */
|
| 960 |
xcpInfo.ctoLen = data[1]+1; |
| 961 |
} /*** end of XcpCmdUpload ***/
|
| 962 |
|
| 963 |
|
| 964 |
/************************************************************************************//** |
| 965 |
** \brief XCP command processor function which handles the SHORT_UPLOAD command as
|
| 966 |
** defined by the protocol.
|
| 967 |
** \param data Pointer to a byte buffer with the packet data.
|
| 968 |
** \return none
|
| 969 |
**
|
| 970 |
****************************************************************************************/
|
| 971 |
static void XcpCmdShortUpload(blt_int8u *data) |
| 972 |
{
|
| 973 |
/* validate length of upload request */
|
| 974 |
if (data[1] > (XCP_CTO_PACKET_LEN-1)) |
| 975 |
{
|
| 976 |
/* requested data length is too long */
|
| 977 |
XcpSetCtoError(XCP_ERR_OUT_OF_RANGE); |
| 978 |
return;
|
| 979 |
} |
| 980 |
|
| 981 |
/* update mta. current implementation ignores address extension */
|
| 982 |
xcpInfo.mta = *(blt_int32u*)&data[4];
|
| 983 |
|
| 984 |
/* copy the data from memory to the data packet */
|
| 985 |
CpuMemCopy((blt_addr)((blt_int32u)&xcpInfo.ctoData[1]),(blt_addr)xcpInfo.mta, data[1]); |
| 986 |
/* set packet id to command response packet */
|
| 987 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 988 |
|
| 989 |
/* post increment the mta */
|
| 990 |
xcpInfo.mta += data[1];
|
| 991 |
|
| 992 |
/* set packet length */
|
| 993 |
xcpInfo.ctoLen = data[1]+1; |
| 994 |
} /*** end of XcpCmdShortUpload ***/
|
| 995 |
|
| 996 |
|
| 997 |
#if (XCP_RES_CALIBRATION_EN == 1) |
| 998 |
/************************************************************************************//** |
| 999 |
** \brief XCP command processor function which handles the DOWNLOAD command as
|
| 1000 |
** defined by the protocol.
|
| 1001 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1002 |
** \return none
|
| 1003 |
**
|
| 1004 |
****************************************************************************************/
|
| 1005 |
static void XcpCmdDownload(blt_int8u *data) |
| 1006 |
{
|
| 1007 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1008 |
/* check if CAL_PAG resource is unlocked */
|
| 1009 |
if ((xcpInfo.protection & XCP_RES_CALPAG) != 0) |
| 1010 |
{
|
| 1011 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1012 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1013 |
return;
|
| 1014 |
} |
| 1015 |
#endif
|
| 1016 |
|
| 1017 |
/* validate length of download request */
|
| 1018 |
if (data[1] > (XCP_CTO_PACKET_LEN-2)) |
| 1019 |
{
|
| 1020 |
/* requested data length is too long */
|
| 1021 |
XcpSetCtoError(XCP_ERR_OUT_OF_RANGE); |
| 1022 |
return;
|
| 1023 |
} |
| 1024 |
|
| 1025 |
/* copy the data from the data packet to memory */
|
| 1026 |
CpuMemCopy((blt_addr)xcpInfo.mta, (blt_addr)((blt_int32u)&data[2]), data[1]); |
| 1027 |
/* set packet id to command response packet */
|
| 1028 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1029 |
|
| 1030 |
/* post increment the mta */
|
| 1031 |
xcpInfo.mta += data[1];
|
| 1032 |
|
| 1033 |
/* set packet length */
|
| 1034 |
xcpInfo.ctoLen = 1;
|
| 1035 |
} /*** end of XcpCmdDownload ***/
|
| 1036 |
|
| 1037 |
|
| 1038 |
/************************************************************************************//** |
| 1039 |
** \brief XCP command processor function which handles the DOWNLOAD_MAX command as
|
| 1040 |
** defined by the protocol.
|
| 1041 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1042 |
** \return none
|
| 1043 |
**
|
| 1044 |
****************************************************************************************/
|
| 1045 |
static void XcpCmdDownloadMax(blt_int8u *data) |
| 1046 |
{
|
| 1047 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1048 |
/* check if CAL_PAG resource is unlocked */
|
| 1049 |
if ((xcpInfo.protection & XCP_RES_CALPAG) != 0) |
| 1050 |
{
|
| 1051 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1052 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1053 |
return;
|
| 1054 |
} |
| 1055 |
#endif
|
| 1056 |
|
| 1057 |
/* copy the data from the data packet to memory */
|
| 1058 |
CpuMemCopy((blt_addr)xcpInfo.mta, (blt_addr)((blt_int32u)&data[1]), \
|
| 1059 |
XCP_CTO_PACKET_LEN-1);
|
| 1060 |
|
| 1061 |
/* set packet id to command response packet */
|
| 1062 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1063 |
|
| 1064 |
/* post increment the mta */
|
| 1065 |
xcpInfo.mta += XCP_CTO_PACKET_LEN-1;
|
| 1066 |
|
| 1067 |
/* set packet length */
|
| 1068 |
xcpInfo.ctoLen = 1;
|
| 1069 |
} /*** end of XcpCmdDownloadMax ***/
|
| 1070 |
#endif /* XCP_RES_CALIBRATION_EN == 1 */ |
| 1071 |
|
| 1072 |
|
| 1073 |
/************************************************************************************//** |
| 1074 |
** \brief XCP command processor function which handles the BUILD_CHECKSUM command as
|
| 1075 |
** defined by the protocol.
|
| 1076 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1077 |
** \return none
|
| 1078 |
**
|
| 1079 |
****************************************************************************************/
|
| 1080 |
static void XcpCmdBuildCheckSum(blt_int8u *data) |
| 1081 |
{
|
| 1082 |
/* set packet id to command response packet */
|
| 1083 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1084 |
|
| 1085 |
/* obtain checksum and checksum type */
|
| 1086 |
xcpInfo.ctoData[1] = XcpComputeChecksum(xcpInfo.mta, *(blt_int32u*)&data[4], |
| 1087 |
(blt_int32u*)&xcpInfo.ctoData[4]);
|
| 1088 |
|
| 1089 |
/* initialize reserved parameters */
|
| 1090 |
xcpInfo.ctoData[2] = 0; |
| 1091 |
xcpInfo.ctoData[3] = 0; |
| 1092 |
|
| 1093 |
/* set packet length */
|
| 1094 |
xcpInfo.ctoLen = 8;
|
| 1095 |
} /*** end of XcpCmdBuildCheckSum ***/
|
| 1096 |
|
| 1097 |
|
| 1098 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1099 |
/************************************************************************************//** |
| 1100 |
** \brief XCP command processor function which handles the GET_SEED command as
|
| 1101 |
** defined by the protocol.
|
| 1102 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1103 |
** \return none
|
| 1104 |
**
|
| 1105 |
****************************************************************************************/
|
| 1106 |
static void XcpCmdGetSeed(blt_int8u *data) |
| 1107 |
{
|
| 1108 |
blt_int8u resourceOK; |
| 1109 |
|
| 1110 |
/* init resource check variable as if an illegal resource is requested */
|
| 1111 |
resourceOK = 0;
|
| 1112 |
|
| 1113 |
/* check if calibration/paging resource is requested for seed/key and make
|
| 1114 |
* sure this is the only requested resource
|
| 1115 |
*/
|
| 1116 |
if (((data[2] & XCP_RES_CALPAG) > 0) && ((data[2] & ~XCP_RES_CALPAG) == 0)) |
| 1117 |
{
|
| 1118 |
resourceOK = 1;
|
| 1119 |
} |
| 1120 |
|
| 1121 |
/* check if programming resource is requested for seed/key and make
|
| 1122 |
* sure this is the only requested resource
|
| 1123 |
*/
|
| 1124 |
if (((data[2] & XCP_RES_PGM) > 0) && ((data[2] & ~XCP_RES_PGM) == 0)) |
| 1125 |
{
|
| 1126 |
resourceOK = 1;
|
| 1127 |
} |
| 1128 |
|
| 1129 |
/* check if data acquisition resource is requested for seed/key and make
|
| 1130 |
* sure this is the only requested resource
|
| 1131 |
*/
|
| 1132 |
if (((data[2] & XCP_RES_DAQ) > 0) && ((data[2] & ~XCP_RES_DAQ) == 0)) |
| 1133 |
{
|
| 1134 |
resourceOK = 1;
|
| 1135 |
} |
| 1136 |
|
| 1137 |
/* check if data stimulation resource is requested for seed/key and make
|
| 1138 |
* sure this is the only requested resource
|
| 1139 |
*/
|
| 1140 |
if (((data[2] & XCP_RES_STIM) > 0) && ((data[2] & ~XCP_RES_STIM) == 0)) |
| 1141 |
{
|
| 1142 |
resourceOK = 1;
|
| 1143 |
} |
| 1144 |
|
| 1145 |
/* now process the resource validation */
|
| 1146 |
if (resourceOK == 0) |
| 1147 |
{
|
| 1148 |
XcpSetCtoError(XCP_ERR_OUT_OF_RANGE); |
| 1149 |
return;
|
| 1150 |
} |
| 1151 |
|
| 1152 |
/* store resource for which the seed/key sequence is started */
|
| 1153 |
xcpInfo.s_n_k_resource = data[2];
|
| 1154 |
|
| 1155 |
/* set packet id to command response packet */
|
| 1156 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1157 |
|
| 1158 |
/* request the seed from the application */
|
| 1159 |
xcpInfo.ctoData[1] = XcpGetSeed(xcpInfo.s_n_k_resource, &xcpInfo.ctoData[2]); |
| 1160 |
|
| 1161 |
/* seed cannot be longer than XCP_CTO_PACKET_LEN-2 */
|
| 1162 |
if (xcpInfo.ctoData[1] > (XCP_CTO_PACKET_LEN-2)) |
| 1163 |
{
|
| 1164 |
/* seed length length is too long */
|
| 1165 |
XcpSetCtoError(XCP_ERR_OUT_OF_RANGE); |
| 1166 |
return;
|
| 1167 |
} |
| 1168 |
|
| 1169 |
/* set packet length */
|
| 1170 |
xcpInfo.ctoLen = xcpInfo.ctoData[1] + 2; |
| 1171 |
} /*** end of XcpCmdGetSeed ***/
|
| 1172 |
|
| 1173 |
|
| 1174 |
/************************************************************************************//** |
| 1175 |
** \brief XCP command processor function which handles the UNLOCK command as
|
| 1176 |
** defined by the protocol.
|
| 1177 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1178 |
** \return none
|
| 1179 |
**
|
| 1180 |
****************************************************************************************/
|
| 1181 |
static void XcpCmdUnlock(blt_int8u *data) |
| 1182 |
{
|
| 1183 |
/* key cannot be longer than XCP_CTO_PACKET_LEN-2 */
|
| 1184 |
if (data[1] > (XCP_CTO_PACKET_LEN-2)) |
| 1185 |
{
|
| 1186 |
/* key is too long incorrect */
|
| 1187 |
XcpSetCtoError(XCP_ERR_SEQUENCE); |
| 1188 |
return;
|
| 1189 |
} |
| 1190 |
|
| 1191 |
/* verify the key */
|
| 1192 |
if (XcpVerifyKey(xcpInfo.s_n_k_resource, &data[2], data[1]) == 0) |
| 1193 |
{
|
| 1194 |
/* invalid key so inform the master and do a disconnect */
|
| 1195 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1196 |
|
| 1197 |
/* indicate that the xcp connection is disconnected */
|
| 1198 |
xcpInfo.connected = 0;
|
| 1199 |
|
| 1200 |
/* enable resource protection */
|
| 1201 |
XcpProtectResources(); |
| 1202 |
|
| 1203 |
return;
|
| 1204 |
} |
| 1205 |
|
| 1206 |
/* key correct so unlock the resource */
|
| 1207 |
xcpInfo.protection &= ~xcpInfo.s_n_k_resource; |
| 1208 |
|
| 1209 |
/* reset seed/key resource variable for possible next unlock */
|
| 1210 |
xcpInfo.s_n_k_resource = 0;
|
| 1211 |
|
| 1212 |
/* set packet id to command response packet */
|
| 1213 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1214 |
|
| 1215 |
/* report the current resource protection */
|
| 1216 |
xcpInfo.ctoData[1] = xcpInfo.protection;
|
| 1217 |
|
| 1218 |
/* set packet length */
|
| 1219 |
xcpInfo.ctoLen = 2;
|
| 1220 |
} /*** end of XcpCmdUnlock ***/
|
| 1221 |
#endif /* XCP_SEED_KEY_PROTECTION_EN == 1 */ |
| 1222 |
|
| 1223 |
|
| 1224 |
#if (XCP_RES_PAGING_EN == 1) |
| 1225 |
/************************************************************************************//** |
| 1226 |
** \brief XCP command processor function which handles the SET_CAL_PAGE command as
|
| 1227 |
** defined by the protocol.
|
| 1228 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1229 |
** \return none
|
| 1230 |
**
|
| 1231 |
****************************************************************************************/
|
| 1232 |
static void XcpCmdSetCalPage(blt_int8u *data) |
| 1233 |
{
|
| 1234 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1235 |
/* check if CAL_PAG resource is unlocked */
|
| 1236 |
if ((xcpInfo.protection & XCP_RES_CALPAG) == XCP_RES_CALPAG)
|
| 1237 |
{
|
| 1238 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1239 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1240 |
return;
|
| 1241 |
} |
| 1242 |
#endif
|
| 1243 |
|
| 1244 |
/* select the page. note that the mode parameter is ignored */
|
| 1245 |
if (XcpCalSetPageHook(data[2], data[3]) == 0) |
| 1246 |
{
|
| 1247 |
/* calibration page could not be selected */
|
| 1248 |
XcpSetCtoError(XCP_ERR_PAGE_NOT_VALID); |
| 1249 |
return;
|
| 1250 |
} |
| 1251 |
|
| 1252 |
/* set packet id to command response packet */
|
| 1253 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1254 |
|
| 1255 |
/* set packet length */
|
| 1256 |
xcpInfo.ctoLen = 1;
|
| 1257 |
} /*** end of XcpCmdSetCalPage ***/
|
| 1258 |
|
| 1259 |
|
| 1260 |
/************************************************************************************//** |
| 1261 |
** \brief XCP command processor function which handles the GET_CAL_PAGE command as
|
| 1262 |
** defined by the protocol.
|
| 1263 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1264 |
** \return none
|
| 1265 |
**
|
| 1266 |
****************************************************************************************/
|
| 1267 |
static void XcpCmdGetCalPage(blt_int8u *data) |
| 1268 |
{
|
| 1269 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1270 |
/* check if CAL_PAG resource is unlocked */
|
| 1271 |
if ((xcpInfo.protection & XCP_RES_CALPAG) == XCP_RES_CALPAG)
|
| 1272 |
{
|
| 1273 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1274 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1275 |
return;
|
| 1276 |
} |
| 1277 |
#endif
|
| 1278 |
|
| 1279 |
/* set packet id to command response packet */
|
| 1280 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1281 |
|
| 1282 |
/* initialize reserved parameters */
|
| 1283 |
xcpInfo.ctoData[1] = 0; |
| 1284 |
xcpInfo.ctoData[2] = 0; |
| 1285 |
|
| 1286 |
/* store the calibration page */
|
| 1287 |
xcpInfo.ctoData[3] = XcpCalGetPageHook(data[2]); |
| 1288 |
|
| 1289 |
/* set packet length */
|
| 1290 |
xcpInfo.ctoLen = 4;
|
| 1291 |
} /*** end of XcpCmdGetCalPage ***/
|
| 1292 |
#endif /* XCP_RES_PAGING_EN == 1 */ |
| 1293 |
|
| 1294 |
|
| 1295 |
#if (XCP_RES_PROGRAMMING_EN == 1) |
| 1296 |
/************************************************************************************//** |
| 1297 |
** \brief XCP command processor function which handles the PROGRAM_START command as
|
| 1298 |
** defined by the protocol.
|
| 1299 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1300 |
** \return none
|
| 1301 |
**
|
| 1302 |
****************************************************************************************/
|
| 1303 |
static void XcpCmdProgramStart(blt_int8u *data) |
| 1304 |
{
|
| 1305 |
/* suppress compiler warning for unused parameter */
|
| 1306 |
data = data; |
| 1307 |
|
| 1308 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1309 |
/* check if PGM resource is unlocked */
|
| 1310 |
if ((xcpInfo.protection & XCP_RES_PGM) == XCP_RES_PGM)
|
| 1311 |
{
|
| 1312 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1313 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1314 |
return;
|
| 1315 |
} |
| 1316 |
#endif
|
| 1317 |
|
| 1318 |
/* set packet id to command response packet */
|
| 1319 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1320 |
|
| 1321 |
/* initialize reserved parameter */
|
| 1322 |
xcpInfo.ctoData[1] = 0; |
| 1323 |
|
| 1324 |
/* no special communication mode supported during programming */
|
| 1325 |
xcpInfo.ctoData[2] = 0; |
| 1326 |
|
| 1327 |
/* cto packet length stays the same during programming */
|
| 1328 |
xcpInfo.ctoData[3] = (blt_int8u)XCP_CTO_PACKET_LEN;
|
| 1329 |
|
| 1330 |
/* no block size, st-min time, or queue size supported */
|
| 1331 |
xcpInfo.ctoData[4] = 0; |
| 1332 |
xcpInfo.ctoData[5] = 0; |
| 1333 |
xcpInfo.ctoData[6] = 0; |
| 1334 |
|
| 1335 |
/* set packet length */
|
| 1336 |
xcpInfo.ctoLen = 7;
|
| 1337 |
} /*** end of XcpCmdProgramStart ***/
|
| 1338 |
|
| 1339 |
|
| 1340 |
/************************************************************************************//** |
| 1341 |
** \brief XCP command processor function which handles the PROGRAM_MAX command as
|
| 1342 |
** defined by the protocol.
|
| 1343 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1344 |
** \return none
|
| 1345 |
**
|
| 1346 |
****************************************************************************************/
|
| 1347 |
static void XcpCmdProgramMax(blt_int8u *data) |
| 1348 |
{
|
| 1349 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1350 |
/* check if PGM resource is unlocked */
|
| 1351 |
if ((xcpInfo.protection & XCP_RES_PGM) == XCP_RES_PGM)
|
| 1352 |
{
|
| 1353 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1354 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1355 |
return;
|
| 1356 |
} |
| 1357 |
#endif
|
| 1358 |
|
| 1359 |
/* program the data */
|
| 1360 |
if (NvmWrite((blt_addr)xcpInfo.mta, XCP_CTO_PACKET_LEN-1, &data[1]) == 0) |
| 1361 |
{
|
| 1362 |
/* error occurred during programming */
|
| 1363 |
XcpSetCtoError(XCP_ERR_GENERIC); |
| 1364 |
return;
|
| 1365 |
} |
| 1366 |
|
| 1367 |
/* set packet id to command response packet */
|
| 1368 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1369 |
|
| 1370 |
/* post increment the mta */
|
| 1371 |
xcpInfo.mta += XCP_CTO_PACKET_LEN-1;
|
| 1372 |
|
| 1373 |
/* set packet length */
|
| 1374 |
xcpInfo.ctoLen = 1;
|
| 1375 |
} /*** end of XcpCmdProgramMax ***/
|
| 1376 |
|
| 1377 |
|
| 1378 |
/************************************************************************************//** |
| 1379 |
** \brief XCP command processor function which handles the PROGRAM command as
|
| 1380 |
** defined by the protocol.
|
| 1381 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1382 |
** \return none
|
| 1383 |
**
|
| 1384 |
****************************************************************************************/
|
| 1385 |
static void XcpCmdProgram(blt_int8u *data) |
| 1386 |
{
|
| 1387 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1388 |
/* check if PGM resource is unlocked */
|
| 1389 |
if ((xcpInfo.protection & XCP_RES_PGM) == XCP_RES_PGM)
|
| 1390 |
{
|
| 1391 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1392 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1393 |
return;
|
| 1394 |
} |
| 1395 |
#endif
|
| 1396 |
|
| 1397 |
/* validate length of download request */
|
| 1398 |
if (data[1] > (XCP_CTO_PACKET_LEN-2)) |
| 1399 |
{
|
| 1400 |
/* requested data length is too long */
|
| 1401 |
XcpSetCtoError(XCP_ERR_OUT_OF_RANGE); |
| 1402 |
return;
|
| 1403 |
} |
| 1404 |
|
| 1405 |
/* set packet id to command response packet */
|
| 1406 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1407 |
|
| 1408 |
/* set packet length */
|
| 1409 |
xcpInfo.ctoLen = 1;
|
| 1410 |
|
| 1411 |
/* end of programming sequence (datasize is 0)? */
|
| 1412 |
if (data[1] == 0) |
| 1413 |
{
|
| 1414 |
/* call erase/programming cleanup routine */
|
| 1415 |
if (NvmDone() == BLT_FALSE)
|
| 1416 |
{
|
| 1417 |
/* error occurred while finishing up programming */
|
| 1418 |
XcpSetCtoError(XCP_ERR_GENERIC); |
| 1419 |
} |
| 1420 |
return;
|
| 1421 |
} |
| 1422 |
/* program the data */
|
| 1423 |
if (NvmWrite((blt_addr)xcpInfo.mta, data[1], &data[2]) == 0) |
| 1424 |
{
|
| 1425 |
/* error occurred during programming */
|
| 1426 |
XcpSetCtoError(XCP_ERR_GENERIC); |
| 1427 |
return;
|
| 1428 |
} |
| 1429 |
|
| 1430 |
/* post increment the mta */
|
| 1431 |
xcpInfo.mta += data[1];
|
| 1432 |
} /*** end of XcpCmdProgram ***/
|
| 1433 |
|
| 1434 |
|
| 1435 |
/************************************************************************************//** |
| 1436 |
** \brief XCP command processor function which handles the PROGRAM_CLEAR command as
|
| 1437 |
** defined by the protocol.
|
| 1438 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1439 |
** \return none
|
| 1440 |
**
|
| 1441 |
****************************************************************************************/
|
| 1442 |
static void XcpCmdProgramClear(blt_int8u *data) |
| 1443 |
{
|
| 1444 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1445 |
/* check if PGM resource is unlocked */
|
| 1446 |
if ((xcpInfo.protection & XCP_RES_PGM) == XCP_RES_PGM)
|
| 1447 |
{
|
| 1448 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1449 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1450 |
return;
|
| 1451 |
} |
| 1452 |
#endif
|
| 1453 |
|
| 1454 |
/* erase the memory */
|
| 1455 |
if (NvmErase((blt_addr)xcpInfo.mta, *(blt_int32u*)&data[4]) == 0) |
| 1456 |
{
|
| 1457 |
/* error occurred during erasure */
|
| 1458 |
XcpSetCtoError(XCP_ERR_GENERIC); |
| 1459 |
return;
|
| 1460 |
} |
| 1461 |
|
| 1462 |
/* set packet id to command response packet */
|
| 1463 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1464 |
|
| 1465 |
/* set packet length */
|
| 1466 |
xcpInfo.ctoLen = 1;
|
| 1467 |
} /*** end of XcpCmdProgramClear ***/
|
| 1468 |
|
| 1469 |
|
| 1470 |
/************************************************************************************//** |
| 1471 |
** \brief XCP command processor function which handles the PROGRAM_RESET command as
|
| 1472 |
** defined by the protocol.
|
| 1473 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1474 |
** \return none
|
| 1475 |
**
|
| 1476 |
****************************************************************************************/
|
| 1477 |
static void XcpCmdProgramReset(blt_int8u *data) |
| 1478 |
{
|
| 1479 |
/* suppress compiler warning for unused parameter */
|
| 1480 |
data = data; |
| 1481 |
|
| 1482 |
xcpInfo.connected = 0;
|
| 1483 |
#if (BOOT_GATE_ENABLE > 0) |
| 1484 |
xcpInfo.other_connection = 0;
|
| 1485 |
#endif
|
| 1486 |
setLed(0);
|
| 1487 |
|
| 1488 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1489 |
/* check if PGM resource is unlocked */
|
| 1490 |
if ((xcpInfo.protection & XCP_RES_PGM) == XCP_RES_PGM)
|
| 1491 |
{
|
| 1492 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1493 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1494 |
return;
|
| 1495 |
} |
| 1496 |
#endif
|
| 1497 |
|
| 1498 |
/* reset the ecu after programming is done. so basically, just start the newly programmed
|
| 1499 |
* firmware. it is okay if the code does not return here. if CpuReset() is used here, then
|
| 1500 |
* the bootloader is first activated again, including the backdoor timer which is not
|
| 1501 |
* desired.
|
| 1502 |
*/
|
| 1503 |
CpuStartUserProgram(); |
| 1504 |
|
| 1505 |
/* set packet id to command response packet */
|
| 1506 |
xcpInfo.ctoData[0] = XCP_PID_RES;
|
| 1507 |
|
| 1508 |
/* set packet length */
|
| 1509 |
xcpInfo.ctoLen = 1;
|
| 1510 |
} /*** end of XcpCmdProgramReset ***/
|
| 1511 |
|
| 1512 |
|
| 1513 |
/************************************************************************************//** |
| 1514 |
** \brief XCP command processor function which handles the PROGRAM_PREPARE command as
|
| 1515 |
** defined by the protocol.
|
| 1516 |
** \param data Pointer to a byte buffer with the packet data.
|
| 1517 |
** \return none
|
| 1518 |
**
|
| 1519 |
****************************************************************************************/
|
| 1520 |
static void XcpCmdProgramPrepare(blt_int8u *data) |
| 1521 |
{
|
| 1522 |
#if (XCP_SEED_KEY_PROTECTION_EN == 1) |
| 1523 |
/* check if PGM resource is unlocked */
|
| 1524 |
if ((xcpInfo.protection & XCP_RES_PGM) == XCP_RES_PGM)
|
| 1525 |
{
|
| 1526 |
/* resource is locked. use seed/key sequence to unlock */
|
| 1527 |
XcpSetCtoError(XCP_ERR_ACCESS_LOCKED); |
| 1528 |
return;
|
| 1529 |
} |
| 1530 |
#endif
|
| 1531 |
|
| 1532 |
/* programming with kernel currently not needed and therefore not supported */
|
| 1533 |
XcpSetCtoError(XCP_ERR_GENERIC); |
| 1534 |
return;
|
| 1535 |
} /*** end of XcpCmdProgramPrepare ***/
|
| 1536 |
#endif /* XCP_RES_PROGRAMMING_EN == 1 */ |
| 1537 |
|
| 1538 |
|
| 1539 |
|
| 1540 |
/******************************** end of xcp.c *****************************************/
|