210 lines
11 KiB
C
210 lines
11 KiB
C
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/**
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* @copyright 2021 Indie microcontroller.
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*
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* This file is proprietary to Indie microcontroller.
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* All rights reserved. Reproduction or distribution, in whole
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* or in part, is forbidden except by express written permission
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* of Indie microcontroller.
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*
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* @file linsNodeCfgIdentify.c
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* @Author: Jack.Pan
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* @E-mail:jack.pan@indiemicro.com
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* @Date: 2021/07/06
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*/
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#include <linStackTask.h>
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#include <linsNodeCfgIdentify.h>
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#include <linSlaveTask.h>
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#include <pdsTask.h>
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#include <SoftTimerTask.h>
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#if LIN_STACK_TYPE == LIN_STACK_TYPE_LIN2_2A
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static LINClusterParams_t *linParams = NULL;
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static LIN_Device_Frame_t volatile *frameTable = NULL;
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void LNCI_Init(void)
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{
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uint8_t tableItemsCount;
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/* get lin information from flash storage */
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linParams = PDS_GetLINParam();
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/* get frame table information */
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frameTable = LINS_GetUcndFramesTable(&tableItemsCount);
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for (uint8_t i = 0U; i < tableItemsCount; i++){
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frameTable[i].frame_id = linParams->frameInfo[i].frameId;
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frameTable[i].frameIsValid = linParams->frameInfo[i].frameIsValid;
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}
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}
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uint8_t LNCI_HandleNodeCfgIdentifyRequest(const DiagSubscribeInfo_t *const diagReq,DiagPublishInfo_t *const diagRsp)
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{
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uint8_t response = FALSE;
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if (diagReq->sid == LIN_SID_ASSIGN_NAD && diagReq->packLength == sizeof(AssignNAD_t)){/* Assign NAD */
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/*
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4.2.5.1 Assign NAD
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Assign NAD is used to resolve conflicting NADs in LIN clusters built using off-theshelves slave nodes or reused slave nodes.
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This request uses the initial NAD (or the NAD wildcard); this is to avoid the risk of losing the address of a slave node. The NAD
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used for the response shall be the same as in the request, i.e. the initial NAD.
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*/
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uint8_t nad = ls_read_nad_from_master();
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if (nad == INIT_LINS_NAD_ADDR || nad == LIN_NAD_WILDCARD){
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AssignNAD_t *assignNAD = (AssignNAD_t *)((void *)diagReq->payload);
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if ((assignNAD->supplierID == LINS_SUPPLIER_ID || assignNAD->supplierID == LIN_SUPPLIER_ID_WILDCARD)&&
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(assignNAD->functionID == LINS_FUNCTION_ID || assignNAD->functionID == LIN_FUNCTION_ID_WILDCARD)){
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/* A response shall only be sent if the NAD, the Supplier ID and the Function ID match. If successful */
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if (assignNAD->newNAD > 0U){
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diagRsp->packLength = 0U;
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linParams->nad = assignNAD->newNAD;
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ls_set_nad(assignNAD->newNAD); /* set nad to lin stack */
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response = TRUE;
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}
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}
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}
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}else if (diagReq->sid == LIN_SID_SAVE_CONFIGURATION && diagReq->packLength == 0x00U){ /* Save Configuration */
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/*
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4.2.5.4 Save Configuration
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This service tells the slave node(s) that the slave application shall save the current
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configuration. The save configuration request shall be structured as shown in
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Table 4.14. This service is used to notify a slave node to store its configuration.
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A configuration in the slave node may be valid even without the master node using this
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request (i.e. the slave node does not have to wait for this request to have a valid configuration).
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*/
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diagRsp->packLength = 0U;
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response = TRUE;
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TM_PostTask(TASK_ID_PDS); /*start persistance data storage (PDS )task */
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}else if (diagReq->sid == LIN_SID_READ_BY_ID && diagReq->packLength == sizeof(ReadByIdReq_t)){ /* Read by Identifier */
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ReadByIdReq_t *readById = (ReadByIdReq_t *)((void*)diagReq->payload);
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if ((readById->supplierID == LINS_SUPPLIER_ID || readById->supplierID == LIN_SUPPLIER_ID_WILDCARD)&&
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(readById->functionID == LINS_FUNCTION_ID || readById->functionID == LIN_FUNCTION_ID_WILDCARD)){
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/*
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4.2.6.1 Read by identifier
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It is possible to read the supplier identity and other properties from a slave node using
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the request in Table 4.18.
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*/
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if (readById->identifier == 0U){
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/* LIN Product Identification */
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ReadByIdProductIdRsp_t *rsp = (ReadByIdProductIdRsp_t *)((void *)diagRsp->payload);
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rsp->supplierID = LINS_SUPPLIER_ID;
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rsp->functionID = LINS_FUNCTION_ID;
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rsp->variant = LINS_VARIANT;
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diagRsp->packLength = (uint16_t)sizeof(ReadByIdProductIdRsp_t);
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response = TRUE;
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}else if (readById->identifier == 1U){
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/* Serial number */
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ReadByIdSerialNoRsp_t *rsp = (ReadByIdSerialNoRsp_t *)((void *)diagRsp->payload);
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rsp->serialNo = LINS_SERIAL_NO;
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diagRsp->packLength = (uint16_t)sizeof(ReadByIdSerialNoRsp_t);
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response = TRUE;
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}else{
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/*
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If the slave is not supporting this request or could not process the request it will
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respond according to Table 4.21.
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*/
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ReadByIdNakRsp_t *rsp = (ReadByIdNakRsp_t *)((void *)diagRsp->payload);
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diagRsp->sid = 0x7FU;
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rsp->sid = LIN_SID_READ_BY_ID;
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rsp->errorCode = 0x12U;
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diagRsp->packLength = (uint16_t)sizeof(ReadByIdNakRsp_t);
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response = TRUE;
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}
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}
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}else if (diagReq->sid == LIN_SID_ASSIGN_FRAME_ID_RANGE && diagReq->packLength == sizeof(AssignFrameIDRange_t)){ /* Assign frame identifier range */
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AssignFrameIDRange_t *assignFrameIDRng = (AssignFrameIDRange_t *)((void *)diagReq->payload);
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uint8_t pid;
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uint8_t invalid = 0U;
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/*
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4.2.5.5 Assign frame ID range
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It is important to notice that the request provides the protected identifier, i.e. the frame
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identifier and its parity. Furthermore, frames with frame identifiers 60 (0x3C) to 63
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(0x3F) can not be changed (diagnostic frames and reserved frames)
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*/
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for (uint8_t i = 0U; i< 4U;i++){
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if (assignFrameIDRng->pid[i] != LIN_FRAME_ID_DONOTCARE){
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pid = assignFrameIDRng->pid[i] & 0x3FU;
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if (pid >= 0x3CU && pid <= 0x3FU){
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/* the request is fail for the FID is invalid*/
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invalid = 1U;
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break;
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}
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}
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}
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/* PID is not in the range from 0x3C to 0x3D */
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if (invalid == 0U){
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uint8_t tableItemsCount;
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LIN_Device_Frame_t volatile *unconditionalTable = LINS_GetUcndFramesTable(&tableItemsCount);
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/* startIndex should be less then unconditional Table size */
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if (assignFrameIDRng->startIndex < tableItemsCount){
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/*
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4.2.5.5 Assign frame ID range
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Example 2
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A slave node has only two frames {status_frame, response_frame}. To assign PIDs to
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these two frames the master application will setup the following request: start index
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set to 0 and PID (index 0..3) set to {0xC4, 0x85, 0xFF, 0xFF}. Since the slave node
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has only two frames the last two must be set to do not care, otherwise the request will fail.
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*/
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uint8_t maxConfigurableFrameIndex = assignFrameIDRng->startIndex + 4U;
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if (maxConfigurableFrameIndex > tableItemsCount){/* overlap with frame table */
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uint8_t coutOffset = 4U - (maxConfigurableFrameIndex - tableItemsCount);
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for (uint8_t i = coutOffset; i < 4U;i++){
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/* configurable out of range PID should be 0xFF */
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if (assignFrameIDRng->pid[i] != LIN_FRAME_ID_DONOTCARE){
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/* the request is fail */
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invalid = 1U;
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break;
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}
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}
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if (invalid == 0U){
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/* Configurable out of range PID setting is corrent, copy PID to frame table */
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for (uint8_t i = 0U; i< (tableItemsCount - assignFrameIDRng->startIndex);i++){
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if (assignFrameIDRng->pid[i] == LIN_FRAME_ID_UNASSIGN){
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/* set PID to 0xFF to invalid this frame */
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unconditionalTable[assignFrameIDRng->startIndex + i].frameIsValid = FALSE;
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}else{
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if (assignFrameIDRng->pid[i] != LIN_FRAME_ID_DONOTCARE){
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/*
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4.2.5.5 Assign frame ID range:
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The slave node will not validate the given PIDs (i.e. validating the parity flags), the
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slave node relies on that the master sets the correct PIDs.
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copy PID to frame table:
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*/
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unconditionalTable[assignFrameIDRng->startIndex + i].frame_id = assignFrameIDRng->pid[i] & 0x3FU;
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unconditionalTable[assignFrameIDRng->startIndex + i].frameIsValid = TRUE;
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}
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}
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}
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diagRsp->packLength = 0U;
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response = TRUE;
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}
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}else{/* no overlap frame table */
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for (uint8_t i = 0U; i < 4U;i++){
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if (assignFrameIDRng->pid[i] == LIN_FRAME_ID_UNASSIGN){
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/* set PID to 0xFF to invalid this frame */
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unconditionalTable[assignFrameIDRng->startIndex + i].frameIsValid = FALSE;
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}else{
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if (assignFrameIDRng->pid[i] != LIN_FRAME_ID_DONOTCARE){
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/*
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4.2.5.5 Assign frame ID range:
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The slave node will not validate the given PIDs (i.e. validating the parity flags), the
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slave node relies on that the master sets the correct PIDs.
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copy PID to frame table:
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*/
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unconditionalTable[assignFrameIDRng->startIndex + i].frame_id = assignFrameIDRng->pid[i] & 0x3FU;
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unconditionalTable[assignFrameIDRng->startIndex + i].frameIsValid = TRUE;
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}
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}
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}
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for (uint8_t i = 0U; i < tableItemsCount; i++){
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linParams->frameInfo[i].frameId = frameTable[i].frame_id;
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linParams->frameInfo[i].frameIsValid = frameTable[i].frameIsValid;
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}
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diagRsp->packLength = 0U;
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response = TRUE;
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}
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}
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}
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}
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return response;
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}
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#endif
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