From 0347bda93a1f251c8bc36d56d5dd9c02daf8af64 Mon Sep 17 00:00:00 2001
From: Arrigo Marchiori <ardovm@yahoo.it>
Date: 周五, 14 10月 2016 23:19:57 +0800
Subject: [PATCH] restore C99 compliance.
---
libscpi/src/error.c | 193 ++++++++++++++++++++++++++++++------------------
1 files changed, 120 insertions(+), 73 deletions(-)
diff --git a/libscpi/src/error.c b/libscpi/src/error.c
index 6dd3e6d..057151e 100644
--- a/libscpi/src/error.c
+++ b/libscpi/src/error.c
@@ -2,7 +2,7 @@
* 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:
@@ -11,7 +11,7 @@
* 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
@@ -28,10 +28,10 @@
/**
* @file scpi_error.c
* @date Thu Nov 15 10:58:45 UTC 2012
- *
+ *
* @brief Error handling and storing routines
- *
- *
+ *
+ *
*/
#include <stdint.h>
@@ -40,21 +40,47 @@
#include "scpi/ieee488.h"
#include "scpi/error.h"
#include "fifo_private.h"
+#include "scpi/constants.h"
-/* basic FIFO */
-static scpi_fifo_t local_error_queue;
+#if USE_DEVICE_DEPENDENT_ERROR_INFORMATION
+#define SCPI_ERROR_SETVAL(e, c, i) do { (e)->error_code = (c); (e)->device_dependent_info = (i); } while(0)
+#else
+#define SCPI_ERROR_SETVAL(e, c, i) do { (e)->error_code = (c); } while(0)
+#endif
+/**
+ * Initialize error queue
+ * @param context - scpi context
+ */
+void SCPI_ErrorInit(scpi_t * context, scpi_error_t * data, int16_t size) {
+ fifo_init(&context->error_queue, data, size);
+}
+/**
+ * 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);
-void SCPI_ErrorInit(scpi_t * context) {
- /*
- * // FreeRTOS
- * context->error_queue = (scpi_error_queue_t)xQueueCreate(100, sizeof(int16_t));
- */
+ if (context->interface && context->interface->error) {
+ context->interface->error(context, 0);
+ }
+ }
+}
- /* basic FIFO */
- context->error_queue = (scpi_error_queue_t)&local_error_queue;
- fifo_init((scpi_fifo_t *)context->error_queue);
+/**
+ * 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);
+ }
}
/**
@@ -62,77 +88,74 @@
* @param context - scpi context
*/
void SCPI_ErrorClear(scpi_t * context) {
- /*
- * // FreeRTOS
- * xQueueReset((xQueueHandle)context->error_queue);
- */
+#if USE_DEVICE_DEPENDENT_ERROR_INFORMATION
+ scpi_error_t error;
+ while (fifo_remove(&context->error_queue, &error)) {
+ SCPIDEFINE_free(&context->error_info_heap, error.device_dependent_info, false);
+ }
+#endif
+ fifo_clear(&context->error_queue);
- /* basic FIFO */
- fifo_clear((scpi_fifo_t *)context->error_queue);
+ SCPI_ErrorEmitEmpty(context);
}
/**
* Pop error from queue
* @param context - scpi context
- * @return error number
+ * @param error
+ * @return
*/
-int16_t SCPI_ErrorPop(scpi_t * context) {
- int16_t result = 0;
+scpi_bool_t SCPI_ErrorPop(scpi_t * context, scpi_error_t * error) {
+ if (!error || !context) return FALSE;
+ SCPI_ERROR_SETVAL(error, 0, NULL);
+ fifo_remove(&context->error_queue, error);
- /*
- * // FreeRTOS
- * if (pdFALSE == xQueueReceive((xQueueHandle)context->error_queue, &result, 0)) {
- * result = 0;
- * }
- */
+ SCPI_ErrorEmitEmpty(context);
- /* basic FIFO */
- fifo_remove((scpi_fifo_t *)context->error_queue, &result);
-
- return result;
+ return TRUE;
}
/**
* 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, char * info, size_t info_len) {
+ scpi_error_t error_value;
+ char * info_ptr = info ? SCPIDEFINE_strndup(&context->error_info_heap, info, info_len) : NULL;
+ SCPI_ERROR_SETVAL(&error_value, err, info_ptr);
+ if (!fifo_add(&context->error_queue, &error_value)) {
+ SCPIDEFINE_free(&context->error_info_heap, error_value.device_dependent_info, true);
+ fifo_remove_last(&context->error_queue, &error_value);
+ SCPIDEFINE_free(&context->error_info_heap, error_value.device_dependent_info, true);
+ SCPI_ERROR_SETVAL(&error_value, SCPI_ERROR_QUEUE_OVERFLOW, NULL);
+ fifo_add(&context->error_queue, &error_value);
+ return FALSE;
+ }
+ return TRUE;
}
struct error_reg {
int16_t from;
int16_t to;
- scpi_reg_val_t bit;
+ scpi_reg_val_t esrBit;
};
-#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 */
@@ -142,28 +165,43 @@
/**
* Push error to queue
+ * @param context
+ * @param err - error number
+ * @param info - additional text information or NULL for no text
+ * @param info_len - length of text or 0 for automatic length
+ */
+void SCPI_ErrorPushEx(scpi_t * context, int16_t err, char * info, size_t info_len) {
+ int i;
+ /* automatic calculation of length */
+ if (info && info_len == 0) {
+ info_len = SCPIDEFINE_strnlen(info, SCPI_STD_ERROR_DESC_MAX_STRING_LENGTH);
+ }
+ scpi_bool_t queue_overflow = !SCPI_ErrorAddInternal(context, err, info, info_len);
+
+ 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].esrBit);
+ }
+ }
+
+ SCPI_ErrorEmit(context, err);
+ if (queue_overflow) {
+ SCPI_ErrorEmit(context, SCPI_ERROR_QUEUE_OVERFLOW);
+ }
+
+ if (context) {
+ context->cmd_error = TRUE;
+ }
+}
+
+/**
+ * Push error to queue
* @param context - scpi context
* @param err - error number
*/
void SCPI_ErrorPush(scpi_t * context, int16_t err) {
-
- int i;
-
- SCPI_ErrorAddInternal(context, err);
-
- 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);
- }
-
- context->cmd_error = TRUE;
- }
+ SCPI_ErrorPushEx(context, err, NULL, 0);
+ return;
}
/**
@@ -173,10 +211,19 @@
*/
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";
}
}
--
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