| | |
| | | * Copyright (c) 2012-2013 Jan Breuer, |
| | | * |
| | | * All Rights Reserved |
| | | * |
| | | * |
| | | * Redistribution and use in source and binary forms, with or without |
| | | * modification, are permitted provided that the following conditions are |
| | | * met: |
| | |
| | | * 2. Redistributions in binary form must reproduce the above copyright |
| | | * notice, this list of conditions and the following disclaimer in the |
| | | * documentation and/or other materials provided with the distribution. |
| | | * |
| | | * |
| | | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR |
| | | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| | | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| | |
| | | /** |
| | | * @file scpi_error.c |
| | | * @date Thu Nov 15 10:58:45 UTC 2012 |
| | | * |
| | | * |
| | | * @brief Error handling and storing routines |
| | | * |
| | | * |
| | | * |
| | | * |
| | | */ |
| | | |
| | | #include <stdint.h> |
| | |
| | | #include "scpi/error.h" |
| | | #include "fifo_private.h" |
| | | |
| | | /* basic FIFO */ |
| | | static scpi_fifo_t local_error_queue; |
| | | |
| | | |
| | | /** |
| | | * Initialize error queue |
| | | * @param context - scpi context |
| | | */ |
| | | void SCPI_ErrorInit(scpi_t * context) { |
| | | /* |
| | | * // FreeRTOS |
| | | * context->error_queue = (scpi_error_queue_t)xQueueCreate(100, sizeof(int16_t)); |
| | | */ |
| | | void SCPI_ErrorInit(scpi_t * context, int16_t * data, int16_t size) { |
| | | fifo_init(&context->error_queue, data, size); |
| | | } |
| | | |
| | | /* basic FIFO */ |
| | | context->error_queue = (scpi_error_queue_t)&local_error_queue; |
| | | fifo_init((scpi_fifo_t *)context->error_queue); |
| | | /** |
| | | * Emit no error |
| | | * @param context scpi context |
| | | */ |
| | | static void SCPI_ErrorEmitEmpty(scpi_t * context) { |
| | | if ((SCPI_ErrorCount(context) == 0) && (SCPI_RegGet(context, SCPI_REG_STB) & STB_QMA)) { |
| | | SCPI_RegClearBits(context, SCPI_REG_STB, STB_QMA); |
| | | |
| | | if (context->interface && context->interface->error) { |
| | | context->interface->error(context, 0); |
| | | } |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Emit error |
| | | * @param context scpi context |
| | | * @param err Error to emit |
| | | */ |
| | | static void SCPI_ErrorEmit(scpi_t * context, int16_t err) { |
| | | SCPI_RegSetBits(context, SCPI_REG_STB, STB_QMA); |
| | | |
| | | if (context->interface && context->interface->error) { |
| | | context->interface->error(context, err); |
| | | } |
| | | } |
| | | |
| | | /** |
| | |
| | | * @param context - scpi context |
| | | */ |
| | | void SCPI_ErrorClear(scpi_t * context) { |
| | | /* |
| | | * // FreeRTOS |
| | | * xQueueReset((xQueueHandle)context->error_queue); |
| | | */ |
| | | fifo_clear(&context->error_queue); |
| | | |
| | | /* basic FIFO */ |
| | | fifo_clear((scpi_fifo_t *)context->error_queue); |
| | | SCPI_ErrorEmitEmpty(context); |
| | | } |
| | | |
| | | /** |
| | |
| | | int16_t SCPI_ErrorPop(scpi_t * context) { |
| | | int16_t result = 0; |
| | | |
| | | /* |
| | | * // FreeRTOS |
| | | * if (pdFALSE == xQueueReceive((xQueueHandle)context->error_queue, &result, 0)) { |
| | | * result = 0; |
| | | * } |
| | | */ |
| | | fifo_remove(&context->error_queue, &result); |
| | | |
| | | /* basic FIFO */ |
| | | fifo_remove((scpi_fifo_t *)context->error_queue, &result); |
| | | SCPI_ErrorEmitEmpty(context); |
| | | |
| | | return result; |
| | | } |
| | |
| | | /** |
| | | * Return number of errors/events in the queue |
| | | * @param context |
| | | * @return |
| | | * @return |
| | | */ |
| | | int32_t SCPI_ErrorCount(scpi_t * context) { |
| | | int16_t result = 0; |
| | | |
| | | /* |
| | | * // FreeRTOS |
| | | * result = uxQueueMessagesWaiting((xQueueHandle)context->error_queue); |
| | | */ |
| | | |
| | | /* basic FIFO */ |
| | | fifo_count((scpi_fifo_t *)context->error_queue, &result); |
| | | fifo_count(&context->error_queue, &result); |
| | | |
| | | return result; |
| | | } |
| | | |
| | | static void SCPI_ErrorAddInternal(scpi_t * context, int16_t err) { |
| | | /* |
| | | * // FreeRTOS |
| | | * xQueueSend((xQueueHandle)context->error_queue, &err, 0); |
| | | */ |
| | | |
| | | /* basic FIFO */ |
| | | fifo_add((scpi_fifo_t *)context->error_queue, err); |
| | | static scpi_bool_t SCPI_ErrorAddInternal(scpi_t * context, int16_t err) { |
| | | if (!fifo_add(&context->error_queue, err)) { |
| | | fifo_remove_last(&context->error_queue, NULL); |
| | | fifo_add(&context->error_queue, SCPI_ERROR_QUEUE_OVERFLOW); |
| | | return FALSE; |
| | | } |
| | | return TRUE; |
| | | } |
| | | |
| | | struct error_reg { |
| | |
| | | scpi_reg_val_t bit; |
| | | }; |
| | | |
| | | #define ERROR_DEFS_N 8 |
| | | #define ERROR_DEFS_N 9 |
| | | |
| | | static const struct error_reg errs[ERROR_DEFS_N] = { |
| | | {-100, -199, ESR_CER}, /* Command error (e.g. syntax error) ch 21.8.9 */ |
| | | {-200, -299, ESR_EER}, /* Execution Error (e.g. range error) ch 21.8.10 */ |
| | | {-300, -399, ESR_DER}, /* Device specific error -300, -399 ch 21.8.11 */ |
| | | { 1, 32767, ESR_DER}, /* Device designer provided specific error 1, 32767 ch 21.8.11 */ |
| | | {-400, -499, ESR_QER}, /* Query error -400, -499 ch 21.8.12 */ |
| | | {-500, -599, ESR_PON}, /* Power on event -500, -599 ch 21.8.13 */ |
| | | {-600, -699, ESR_URQ}, /* User Request Event -600, -699 ch 21.8.14 */ |
| | |
| | | |
| | | int i; |
| | | |
| | | SCPI_ErrorAddInternal(context, err); |
| | | scpi_bool_t queue_overflow = !SCPI_ErrorAddInternal(context, err); |
| | | |
| | | for(i = 0; i < ERROR_DEFS_N; i++) { |
| | | for (i = 0; i < ERROR_DEFS_N; i++) { |
| | | if ((err <= errs[i].from) && (err >= errs[i].to)) { |
| | | SCPI_RegSetBits(context, SCPI_REG_ESR, errs[i].bit); |
| | | } |
| | | } |
| | | |
| | | if (context) { |
| | | if (context->interface && context->interface->error) { |
| | | context->interface->error(context, err); |
| | | } |
| | | SCPI_ErrorEmit(context, err); |
| | | if (queue_overflow) { |
| | | SCPI_ErrorEmit(context, SCPI_ERROR_QUEUE_OVERFLOW); |
| | | } |
| | | |
| | | if (context) { |
| | | context->cmd_error = TRUE; |
| | | } |
| | | } |
| | |
| | | const char * SCPI_ErrorTranslate(int16_t err) { |
| | | switch (err) { |
| | | case 0: return "No error"; |
| | | #define X(def, val, str) case def: return str; |
| | | #define X(def, val, str) case def: return str; |
| | | #if USE_FULL_ERROR_LIST |
| | | #define XE X |
| | | #else |
| | | #define XE(def, val, str) |
| | | #endif |
| | | LIST_OF_ERRORS |
| | | #undef X |
| | | |
| | | #if USE_USER_ERROR_LIST |
| | | LIST_OF_USER_ERRORS |
| | | #endif |
| | | #undef X |
| | | #undef XE |
| | | default: return "Unknown error"; |
| | | } |
| | | } |