1 /* 2 * Copyright (c) 2016, The OpenThread Authors. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. Neither the name of the copyright holder nor the 13 * names of its contributors may be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /** 30 * @file 31 * @brief 32 * This file defines the top-level functions for the OpenThread NCP module. 33 */ 34 35 #ifndef OPENTHREAD_NCP_H_ 36 #define OPENTHREAD_NCP_H_ 37 38 #include <stdarg.h> 39 40 #include <openthread/platform/logging.h> 41 #include <openthread/platform/radio.h> 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 /** 48 * @addtogroup api-ncp 49 * 50 * @brief 51 * This module includes functions that control the Thread stack's execution. 52 * 53 * @{ 54 * 55 */ 56 57 /** 58 * Pointer is called to send HDLC encoded NCP data. 59 * 60 * @param[in] aBuf A pointer to a buffer with an output. 61 * @param[in] aBufLength A length of the output data stored in the buffer. 62 * 63 * @returns Number of bytes processed by the callback. 64 * 65 */ 66 typedef int (*otNcpHdlcSendCallback)(const uint8_t *aBuf, uint16_t aBufLength); 67 68 /** 69 * Is called after NCP send finished. 70 * 71 */ 72 void otNcpHdlcSendDone(void); 73 74 /** 75 * Is called after HDLC encoded NCP data received. 76 * 77 * @param[in] aBuf A pointer to a buffer. 78 * @param[in] aBufLength The length of the data stored in the buffer. 79 * 80 */ 81 void otNcpHdlcReceive(const uint8_t *aBuf, uint16_t aBufLength); 82 83 /** 84 * Initialize the NCP based on HDLC framing. 85 * 86 * @param[in] aInstance The OpenThread instance structure. 87 * @param[in] aSendCallback The function pointer used to send NCP data. 88 * 89 */ 90 void otNcpHdlcInit(otInstance *aInstance, otNcpHdlcSendCallback aSendCallback); 91 92 /** 93 * Initialize the NCP based on HDLC framing. 94 * 95 * @param[in] aInstances The OpenThread instance pointers array. 96 * @param[in] aCount Number of elements in the array. 97 * @param[in] aSendCallback The function pointer used to send NCP data. 98 * 99 */ 100 void otNcpHdlcInitMulti(otInstance **aInstance, uint8_t aCount, otNcpHdlcSendCallback aSendCallback); 101 102 /** 103 * Initialize the NCP based on SPI framing. 104 * 105 * @param[in] aInstance The OpenThread instance structure. 106 * 107 */ 108 void otNcpSpiInit(otInstance *aInstance); 109 110 /** 111 * @brief Send data to the host via a specific stream. 112 * 113 * Attempts to send the given data to the host 114 * using the given aStreamId. This is useful for reporting 115 * error messages, implementing debug/diagnostic consoles, 116 * and potentially other types of datastreams. 117 * 118 * The write either is accepted in its entirety or rejected. 119 * Partial writes are not attempted. 120 * 121 * @param[in] aStreamId A numeric identifier for the stream to write to. 122 * If set to '0', will default to the debug stream. 123 * @param[in] aDataPtr A pointer to the data to send on the stream. 124 * If aDataLen is non-zero, this param MUST NOT be NULL. 125 * @param[in] aDataLen The number of bytes of data from aDataPtr to send. 126 * 127 * @retval OT_ERROR_NONE The data was queued for delivery to the host. 128 * @retval OT_ERROR_BUSY There are not enough resources to complete this 129 * request. This is usually a temporary condition. 130 * @retval OT_ERROR_INVALID_ARGS The given aStreamId was invalid. 131 */ 132 otError otNcpStreamWrite(int aStreamId, const uint8_t *aDataPtr, int aDataLen); 133 134 /** 135 * Writes OpenThread Log using `otNcpStreamWrite`. 136 * 137 * @param[in] aLogLevel The log level. 138 * @param[in] aLogRegion The log region. 139 * @param[in] aFormat A pointer to the format string. 140 * @param[in] aArgs va_list matching aFormat. 141 */ 142 void otNcpPlatLogv(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aFormat, va_list aArgs); 143 144 //----------------------------------------------------------------------------------------- 145 // Peek/Poke memory access control delegates 146 147 /** 148 * Defines delegate (function pointer) type to control behavior of peek/poke operation. 149 * 150 * This delegate function is called to decide whether to allow peek or poke of a specific memory region. It is used 151 * if NCP support for peek/poke commands is enabled. 152 * 153 * @param[in] aAddress Start address of memory region. 154 * @param[in] aCount Number of bytes to peek or poke. 155 * 156 * @returns TRUE to allow peek/poke of the given memory region, FALSE otherwise. 157 * 158 */ 159 typedef bool (*otNcpDelegateAllowPeekPoke)(uint32_t aAddress, uint16_t aCount); 160 161 /** 162 * Registers peek/poke delegate functions with NCP module. 163 * 164 * The delegate functions are called by NCP module to decide whether to allow peek or poke of a specific memory region. 165 * If the delegate pointer is set to NULL, it allows peek/poke operation for any address. 166 * 167 * @param[in] aAllowPeekDelegate Delegate function pointer for peek operation. 168 * @param[in] aAllowPokeDelegate Delegate function pointer for poke operation. 169 * 170 */ 171 void otNcpRegisterPeekPokeDelegates(otNcpDelegateAllowPeekPoke aAllowPeekDelegate, 172 otNcpDelegateAllowPeekPoke aAllowPokeDelegate); 173 174 /** 175 * @} 176 * 177 */ 178 179 #ifdef __cplusplus 180 } // extern "C" 181 #endif 182 183 #endif // OPENTHREAD_NCP_H_ 184
