mbed

Fork of mbed-dev by mbed official

Committer:
AnnaBridge
Date:
Fri Feb 16 16:09:33 2018 +0000
Revision:
182:57724642e740
Parent:
149:156823d33999
mbed-dev library. Release version 159.

Who changed what in which revision?

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<> 144:ef7eb2e8f9f7 1 /**
<> 144:ef7eb2e8f9f7 2 ******************************************************************************
<> 144:ef7eb2e8f9f7 3 * @file mib.h
<> 144:ef7eb2e8f9f7 4 * @brief Defines the structure of a Management Information Base (MIB)
<> 144:ef7eb2e8f9f7 5 * @internal
<> 144:ef7eb2e8f9f7 6 * @author ON Semiconductor
<> 144:ef7eb2e8f9f7 7 * $Rev: 2284 $
<> 144:ef7eb2e8f9f7 8 * $Date: 2013-09-12 15:08:22 +0530 (Thu, 12 Sep 2013) $
<> 144:ef7eb2e8f9f7 9 ******************************************************************************
<> 147:30b64687e01f 10 * Copyright 2016 Semiconductor Components Industries LLC (d/b/a “ON Semiconductor”).
<> 147:30b64687e01f 11 * All rights reserved. This software and/or documentation is licensed by ON Semiconductor
<> 147:30b64687e01f 12 * under limited terms and conditions. The terms and conditions pertaining to the software
<> 147:30b64687e01f 13 * and/or documentation are available at http://www.onsemi.com/site/pdf/ONSEMI_T&C.pdf
<> 147:30b64687e01f 14 * (“ON Semiconductor Standard Terms and Conditions of Sale, Section 8 Software”) and
<> 147:30b64687e01f 15 * if applicable the software license agreement. Do not use this software and/or
<> 147:30b64687e01f 16 * documentation unless you have carefully read and you agree to the limited terms and
<> 147:30b64687e01f 17 * conditions. By using this software and/or documentation, you agree to the limited
<> 147:30b64687e01f 18 * terms and conditions.
<> 144:ef7eb2e8f9f7 19 *
<> 144:ef7eb2e8f9f7 20 * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
<> 144:ef7eb2e8f9f7 21 * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
<> 144:ef7eb2e8f9f7 22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
<> 144:ef7eb2e8f9f7 23 * ON SEMICONDUCTOR SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
<> 144:ef7eb2e8f9f7 24 * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
<> 144:ef7eb2e8f9f7 25 * @endinternal
<> 144:ef7eb2e8f9f7 26 *
<> 144:ef7eb2e8f9f7 27 * @details
<> 144:ef7eb2e8f9f7 28 * This file defines the structure, as seen from the outside, of any Management
<> 144:ef7eb2e8f9f7 29 * Information Base (MIB) implementation. It does not define the contents of the
<> 144:ef7eb2e8f9f7 30 * MIB.
<> 144:ef7eb2e8f9f7 31 *
<> 144:ef7eb2e8f9f7 32 * A MIB is implemented as a map of parameters, each identified by a unique Object ID.
<> 144:ef7eb2e8f9f7 33 * The contents of the map have to be filled in by the actual MIB implementation, by
<> 144:ef7eb2e8f9f7 34 * assigning to the GlobMibMap variable. The mib_param_t data type defines the format
<> 144:ef7eb2e8f9f7 35 * of each parameter in the map. *NOTE:* The length of the last entry in the map must
<> 144:ef7eb2e8f9f7 36 * be 0.
<> 144:ef7eb2e8f9f7 37 *
<> 144:ef7eb2e8f9f7 38 * One parameter must always be present in the MIB map: the system revision. It has
<> 144:ef7eb2e8f9f7 39 * to be set by assigning a value to the systemRevision variable.
<> 144:ef7eb2e8f9f7 40 *
<> 144:ef7eb2e8f9f7 41 * Parameters can be of any data type, and read / write or read only. To resemble
<> 144:ef7eb2e8f9f7 42 * the hierarchical structure of an SNMP MIB, each Object ID consists of four nibbles
<> 144:ef7eb2e8f9f7 43 * (uint16_t) where the more significant nibbles correspond to a higher level in the
<> 144:ef7eb2e8f9f7 44 * hierarchy.
<> 144:ef7eb2e8f9f7 45 *
<> 144:ef7eb2e8f9f7 46 * The contents of the map can be accessed with the fMibSetBytes() and fMibGetBytes()
<> 144:ef7eb2e8f9f7 47 * functions. The implementation of the MIB may also make its parameters accessible
<> 144:ef7eb2e8f9f7 48 * in a more "direct" way; that is left to the implementation. The fMibSetBytes() and
<> 144:ef7eb2e8f9f7 49 * fMibGetBytes() functions are made available to the user interface (see ui.h). In
<> 144:ef7eb2e8f9f7 50 * order to do so, fMibUiInit() must be called during device initialization.
<> 144:ef7eb2e8f9f7 51 *
<> 144:ef7eb2e8f9f7 52 * Additionally, for parameters that have an array as their value, the individual
<> 144:ef7eb2e8f9f7 53 * elements of the array can be accessed using the fMibIndexedSetBytes() and
<> 144:ef7eb2e8f9f7 54 * fMibIndexedGetBytes() functions. The functions are similar to their non-indexed
<> 144:ef7eb2e8f9f7 55 * variants (fMibSetBytes() and fMibGetBytes()), except that they expect the index of
<> 144:ef7eb2e8f9f7 56 * the element as an argument.
<> 144:ef7eb2e8f9f7 57 *
<> 144:ef7eb2e8f9f7 58 * fMibGetBytes() and fMibSetBytes() will normally copy bytes from the MIB parameter
<> 144:ef7eb2e8f9f7 59 * into a given place in memory, or from memory to the MIB parameter. This behaviour
<> 144:ef7eb2e8f9f7 60 * can be overruled by assigning a function to the setAction and / or getAction
<> 144:ef7eb2e8f9f7 61 * fields of the MIB parameter.
<> 144:ef7eb2e8f9f7 62 *
<> 144:ef7eb2e8f9f7 63 * For parameters that have an array as their value, the length field has a slightly
<> 144:ef7eb2e8f9f7 64 * different meaning: the most significant 16 bits contain the length of the array;
<> 144:ef7eb2e8f9f7 65 * the least significant 16 bits contain the width of the array (i.e. the size in
<> 144:ef7eb2e8f9f7 66 * bytes of the array's elements). This implies that the normal fMibGetBytes() and
<> 144:ef7eb2e8f9f7 67 * fMibSetBytes() cannot be used on these parameters; instead, a get and set action
<> 144:ef7eb2e8f9f7 68 * needs to be provided to interpret the length field in case of a non-indexed get
<> 144:ef7eb2e8f9f7 69 * or set.
<> 144:ef7eb2e8f9f7 70 *
<> 144:ef7eb2e8f9f7 71 * To access the MIB fields over the user interface, the module ID must be equal to
<> 144:ef7eb2e8f9f7 72 * MIB_MODULE_ID or 0x01. The data in the packet must have the following structure:
<> 144:ef7eb2e8f9f7 73 * <table>
<> 144:ef7eb2e8f9f7 74 * <tr>
<> 144:ef7eb2e8f9f7 75 * <th>Get (0x00) / Set (0x01) code</th>
<> 144:ef7eb2e8f9f7 76 * <th>Object ID</th>
<> 144:ef7eb2e8f9f7 77 * <th>Value (only for set)</th>
<> 144:ef7eb2e8f9f7 78 * </tr>
<> 144:ef7eb2e8f9f7 79 * <tr>
<> 144:ef7eb2e8f9f7 80 * <td>1 Byte</td>
<> 144:ef7eb2e8f9f7 81 * <td>2 Bytes</td>
<> 144:ef7eb2e8f9f7 82 * <td>X bytes</td>
<> 144:ef7eb2e8f9f7 83 * </tr>
<> 144:ef7eb2e8f9f7 84 * </table>
<> 144:ef7eb2e8f9f7 85 *
<> 144:ef7eb2e8f9f7 86 * <table>
<> 144:ef7eb2e8f9f7 87 * <tr>
<> 144:ef7eb2e8f9f7 88 * <th>Indexed Get (0x02) / Set (0x03) code</th>
<> 144:ef7eb2e8f9f7 89 * <th>Object ID</th>
<> 144:ef7eb2e8f9f7 90 * <th>Index</th>
<> 144:ef7eb2e8f9f7 91 * <th>Value (only for set)</th>
<> 144:ef7eb2e8f9f7 92 * </tr>
<> 144:ef7eb2e8f9f7 93 * <tr>
<> 144:ef7eb2e8f9f7 94 * <td>1 Byte</td>
<> 144:ef7eb2e8f9f7 95 * <td>2 Bytes</td>
<> 144:ef7eb2e8f9f7 96 * <td>2 Bytes</td>
<> 144:ef7eb2e8f9f7 97 * <td>X bytes</td>
<> 144:ef7eb2e8f9f7 98 * </tr>
<> 144:ef7eb2e8f9f7 99 * </table>
<> 144:ef7eb2e8f9f7 100 *
<> 144:ef7eb2e8f9f7 101 * The reply to this request will have the same structure, with the value always
<> 144:ef7eb2e8f9f7 102 * being present (in case of a Set as well as a Get request).
<> 144:ef7eb2e8f9f7 103 *
<> 144:ef7eb2e8f9f7 104 * In case an error occurs during a Set or Get request, an error is returned by
<> 144:ef7eb2e8f9f7 105 * fMibGetBytes(), fMibSetBytes() or the UI. See the UI Module's documentation for
<> 144:ef7eb2e8f9f7 106 * the format of an error reply. The applicable error codes are:
<> 144:ef7eb2e8f9f7 107 * <table>
<> 144:ef7eb2e8f9f7 108 * <tr><th>0x01</th><td>Trying to set a read-only parameter.</td></tr>
<> 144:ef7eb2e8f9f7 109 * <tr><th>0x02</th><td>Requested value out of range.</td></tr>
<> 144:ef7eb2e8f9f7 110 * <tr><th>0x03</th><td>Object ID is unknown.</td></tr>
<> 144:ef7eb2e8f9f7 111 * <tr><th>0x04</th><td>Provided index is incorrect.</td></tr>
<> 144:ef7eb2e8f9f7 112 * </table>
<> 144:ef7eb2e8f9f7 113 *
<> 144:ef7eb2e8f9f7 114 * @ingroup mib
<> 144:ef7eb2e8f9f7 115 */
<> 144:ef7eb2e8f9f7 116
<> 144:ef7eb2e8f9f7 117 #ifndef MIB_H_
<> 144:ef7eb2e8f9f7 118 #define MIB_H_
<> 144:ef7eb2e8f9f7 119
<> 144:ef7eb2e8f9f7 120
<> 144:ef7eb2e8f9f7 121 #include <stdint.h>
<> 144:ef7eb2e8f9f7 122
<> 144:ef7eb2e8f9f7 123 #include "types.h"
<> 144:ef7eb2e8f9f7 124 #include "error.h"
<> 144:ef7eb2e8f9f7 125
<> 144:ef7eb2e8f9f7 126 /** A structure defining the format of the system revision parameter. */
<> 144:ef7eb2e8f9f7 127 typedef struct mib_systemRevision {
<> 144:ef7eb2e8f9f7 128 uint8_t hardwareRevision;
<> 144:ef7eb2e8f9f7 129 uint8_t patchLevel;
<> 144:ef7eb2e8f9f7 130 uint8_t bugFix;
<> 144:ef7eb2e8f9f7 131 uint8_t featureSet;
<> 144:ef7eb2e8f9f7 132 uint8_t generation;
<> 144:ef7eb2e8f9f7 133 uint8_t release;
<> 144:ef7eb2e8f9f7 134 } mib_systemRevision_t, *mib_systemRevision_pt;
<> 144:ef7eb2e8f9f7 135
<> 144:ef7eb2e8f9f7 136 /** The system revision. */
<> 144:ef7eb2e8f9f7 137 extern const mib_systemRevision_t systemRevision;
<> 144:ef7eb2e8f9f7 138
<> 144:ef7eb2e8f9f7 139
<> 144:ef7eb2e8f9f7 140 #endif /* MIB_H_ */