/*-
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* Copyright (c) 2012-2013 Jan Breuer,
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*
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* All Rights Reserved
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file scpi_error.c
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* @date Thu Nov 15 10:58:45 UTC 2012
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*
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* @brief Error handling and storing routines
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*
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*
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*/
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#include <stdint.h>
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#include "scpi/parser.h"
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#include "scpi/ieee488.h"
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#include "scpi/error.h"
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#include "scpi/fifo.h"
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// basic FIFO
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static fifo_t local_error_queue;
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void SCPI_ErrorInit(scpi_t * context) {
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//// FreeRTOS
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// context->error_queue = (scpi_error_queue_t)xQueueCreate(100, sizeof(int16_t));
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// basic FIFO
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context->error_queue = (scpi_error_queue_t)&local_error_queue;
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fifo_init((fifo_t *)context->error_queue);
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}
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/**
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* Clear error queue
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* @param context - scpi context
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*/
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void SCPI_ErrorClear(scpi_t * context) {
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//// FreeRTOS
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//xQueueReset((xQueueHandle)context->error_queue);
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// basic FIFO
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fifo_clear((fifo_t *)context->error_queue);
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}
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/**
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* Pop error from queue
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* @param context - scpi context
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* @return error number
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*/
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int16_t SCPI_ErrorPop(scpi_t * context) {
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int16_t result = 0;
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//// FreeRTOS
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//if (pdFALSE == xQueueReceive((xQueueHandle)context->error_queue, &result, 0)) {
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// result = 0;
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//}
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// basic FIFO
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fifo_remove((fifo_t *)context->error_queue, &result);
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return result;
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}
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/**
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* Return number of errors/events in the queue
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* @param context
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* @return
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*/
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int32_t SCPI_ErrorCount(scpi_t * context) {
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int16_t result = 0;
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//// FreeRTOS
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//result = uxQueueMessagesWaiting((xQueueHandle)context->error_queue);
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//basic FIFO
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fifo_count((fifo_t *)context->error_queue, &result);
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return result;
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}
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static void SCPI_ErrorAddInternal(scpi_t * context, int16_t err) {
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//// FreeRTOS
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//xQueueSend((xQueueHandle)context->error_queue, &err, 0);
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// basic FIFO
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fifo_add((fifo_t *)context->error_queue, err);
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}
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struct error_reg {
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int16_t from;
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int16_t to;
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scpi_reg_val_t bit;
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};
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#define ERROR_DEFS_N 8
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static const struct error_reg errs[ERROR_DEFS_N] = {
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{.from = -100, .to = -199, .bit=ESR_CER}, // Command error (e.g. syntax error) ch 21.8.9
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{.from = -200, .to = -299, .bit=ESR_EER}, // Execution Error (e.g. range error) ch 21.8.10
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{.from = -300, .to = -399, .bit=ESR_DER}, // Device specific error -300, -399 ch 21.8.11
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{.from = -400, .to = -499, .bit=ESR_QER}, // Query error -400, -499 ch 21.8.12
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{.from = -500, .to = -599, .bit=ESR_PON}, // Power on event -500, -599 ch 21.8.13
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{.from = -600, .to = -699, .bit=ESR_URQ}, // User Request Event -600, -699 ch 21.8.14
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{.from = -700, .to = -799, .bit=ESR_REQ}, // Request Control Event -700, -799 ch 21.8.15
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{.from = -800, .to = -899, .bit=ESR_OPC}, // Operation Complete Event -800, -899 ch 21.8.16
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};
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/**
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* Push error to queue
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* @param context - scpi context
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* @param err - error number
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*/
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void SCPI_ErrorPush(scpi_t * context, int16_t err) {
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int i;
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SCPI_ErrorAddInternal(context, err);
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for(i = 0; i < ERROR_DEFS_N; i++) {
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if ((err <= errs[i].from) && (err >= errs[i].to)) {
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SCPI_RegSetBits(context, SCPI_REG_ESR, errs[i].bit);
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}
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}
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if (context) {
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if (context->interface && context->interface->error) {
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context->interface->error(context, err);
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}
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context->cmd_error = TRUE;
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}
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}
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/**
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* Translate error number to string
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* @param err - error number
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* @return Error string representation
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*/
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const char * SCPI_ErrorTranslate(int16_t err) {
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switch (err) {
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case 0: return "No error";
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case SCPI_ERROR_SYNTAX: return "Syntax error";
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case SCPI_ERROR_INVALID_SEPARATOR: return "Invalid separator";
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case SCPI_ERROR_UNDEFINED_HEADER: return "Undefined header";
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case SCPI_ERROR_PARAMETER_NOT_ALLOWED: return "Parameter not allowed";
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case SCPI_ERROR_MISSING_PARAMETER: return "Missing parameter";
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case SCPI_ERROR_INVALID_SUFFIX: return "Invalid suffix";
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case SCPI_ERROR_SUFFIX_NOT_ALLOWED: return "Suffix not allowed";
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default: return "Unknown error";
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}
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}
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