amiro-os / components / FileSystemInputOutput / FileSystemInputOutputBase.cpp @ 2af9778e
History | View | Annotate | Download (6.35 KB)
| 1 | 58fe0e0b | Thomas Schöpping | #include <amiro/FileSystemInputOutput/FileSystemInputOutputBase.hpp> |
|---|---|---|---|
| 2 | |||
| 3 | using namespace amiro; |
||
| 4 | using namespace amiro::fileSystemIo; |
||
| 5 | |||
| 6 | msg_t |
||
| 7 | FileSystemIoBase::init() |
||
| 8 | {
|
||
| 9 | msg_t returnValue = OK; |
||
| 10 | |||
| 11 | // Get the preamble
|
||
| 12 | const uint8_t bufferSize = sizeof(FileSystemIoBase::preamble_1_1); |
||
| 13 | uint8_t buffer[bufferSize]; |
||
| 14 | chFileStreamSeek((BaseFileStream*)&at24c01, offsetof(FileSystemIoBase::preamble_1_1, magicByte)); |
||
| 15 | const size_t bytesRead = chSequentialStreamRead((BaseFileStream*)&at24c01, (uint8_t*) buffer, bufferSize);
|
||
| 16 | |||
| 17 | // reading failed -> error
|
||
| 18 | if (bytesRead != bufferSize) {
|
||
| 19 | returnValue |= IO_ERROR; |
||
| 20 | return returnValue;
|
||
| 21 | } |
||
| 22 | |||
| 23 | // magic byte is incorrect -> error
|
||
| 24 | if (buffer[offsetof(FileSystemIoBase::preamble_1_1, magicByte)] != magicByteValue()) {
|
||
| 25 | returnValue |= WRONG_MAGICBYTE_VALUE; |
||
| 26 | return returnValue;
|
||
| 27 | } |
||
| 28 | |||
| 29 | // BSMV is incorrect -> error
|
||
| 30 | if (buffer[offsetof(FileSystemIoBase::preamble_1_1, byteStructureMajorVersion)] != BSMV) {
|
||
| 31 | returnValue |= WRONG_BSMV; |
||
| 32 | return returnValue;
|
||
| 33 | } |
||
| 34 | |||
| 35 | // bsmv in smaller -> initialize
|
||
| 36 | if (buffer[offsetof(FileSystemIoBase::preamble_1_1, byteStructureMinorVersion)] < bsmv) {
|
||
| 37 | returnValue |= WRONG_bsmv; |
||
| 38 | // initialize all missing data
|
||
| 39 | for (uint8_t v = bsmv; v > buffer[offsetof(FileSystemIoBase::preamble_1_1, byteStructureMinorVersion)]; --v)
|
||
| 40 | {
|
||
| 41 | returnValue |= initPreamble(BSMV, v, false);
|
||
| 42 | } |
||
| 43 | } |
||
| 44 | |||
| 45 | // HMV is incorrect -> error
|
||
| 46 | if (buffer[offsetof(FileSystemIoBase::preamble_1_1, hardwareMajorVersion)] != HMV) {
|
||
| 47 | returnValue |= WRONG_HMV; |
||
| 48 | return returnValue;
|
||
| 49 | } |
||
| 50 | |||
| 51 | // hmv is incorrect -> error
|
||
| 52 | if (buffer[offsetof(FileSystemIoBase::preamble_1_1, hardwareMinorVersion)] >= hmv) {
|
||
| 53 | returnValue |= WRONG_hmv; |
||
| 54 | } |
||
| 55 | |||
| 56 | return returnValue;
|
||
| 57 | } |
||
| 58 | |||
| 59 | msg_t |
||
| 60 | FileSystemIoBase:: |
||
| 61 | getCheck() {
|
||
| 62 | |||
| 63 | // Get the preamble
|
||
| 64 | const uint8_t bufferSize = sizeof(FileSystemIoBase::preamble_1_1); |
||
| 65 | uint8_t buffer[bufferSize]; |
||
| 66 | chFileStreamSeek((BaseFileStream*)&at24c01, offsetof(FileSystemIoBase::preamble_1_1, magicByte)); |
||
| 67 | const size_t bytesRead = chSequentialStreamRead((BaseFileStream*)&at24c01, (uint8_t*) buffer, bufferSize);
|
||
| 68 | |||
| 69 | if (bytesRead != bufferSize) {
|
||
| 70 | return IO_ERROR;
|
||
| 71 | } else if (buffer[offsetof(FileSystemIoBase::preamble_1_1, magicByte)] != magicByteValue()) { |
||
| 72 | return WRONG_MAGICBYTE_VALUE;
|
||
| 73 | } else if (buffer[offsetof(FileSystemIoBase::preamble_1_1, byteStructureMajorVersion)] != BSMV) { |
||
| 74 | return WRONG_BSMV;
|
||
| 75 | } else if (buffer[offsetof(FileSystemIoBase::preamble_1_1, byteStructureMinorVersion)] < bsmv) { |
||
| 76 | return WRONG_bsmv;
|
||
| 77 | } else if (buffer[offsetof(FileSystemIoBase::preamble_1_1, hardwareMajorVersion)] != HMV) { |
||
| 78 | return WRONG_HMV;
|
||
| 79 | } else if (buffer[offsetof(FileSystemIoBase::preamble_1_1, hardwareMinorVersion)] < hmv) { |
||
| 80 | return WRONG_hmv;
|
||
| 81 | } else {
|
||
| 82 | return OK;
|
||
| 83 | } |
||
| 84 | } |
||
| 85 | |||
| 86 | msg_t |
||
| 87 | FileSystemIoBase::initPreamble(const uint8_t BSMV, const uint8_t bsmv, const bool strict) |
||
| 88 | {
|
||
| 89 | uint8_t buffer[3] = {};
|
||
| 90 | |||
| 91 | if (strict) {
|
||
| 92 | // initialize the magic byte
|
||
| 93 | chFileStreamSeek((BaseFileStream*)&this->at24c01, offsetof(FileSystemIoBase::preamble_1_1, magicByte));
|
||
| 94 | buffer[0] = magicByteValue();
|
||
| 95 | if (chSequentialStreamWrite((BaseFileStream*)&this->at24c01, buffer, 1) != 1) { |
||
| 96 | return IO_ERROR;
|
||
| 97 | } |
||
| 98 | } |
||
| 99 | |||
| 100 | switch (BSMV)
|
||
| 101 | {
|
||
| 102 | case 1: |
||
| 103 | if (strict) {
|
||
| 104 | // initialize the BSMV
|
||
| 105 | chFileStreamSeek((BaseFileStream*)&this->at24c01, offsetof(FileSystemIoBase::preamble_1_1, byteStructureMajorVersion));
|
||
| 106 | buffer[0] = BSMV;
|
||
| 107 | if (chSequentialStreamWrite((BaseFileStream*)&this->at24c01, buffer, 1) != 1) { |
||
| 108 | return IO_ERROR;
|
||
| 109 | } |
||
| 110 | } |
||
| 111 | // initialize the bsmv
|
||
| 112 | chFileStreamSeek((BaseFileStream*)&this->at24c01, offsetof(FileSystemIoBase::preamble_1_1, byteStructureMinorVersion));
|
||
| 113 | buffer[0] = bsmv;
|
||
| 114 | if (chSequentialStreamWrite((BaseFileStream*)&this->at24c01, buffer, 1) != 1) { |
||
| 115 | return IO_ERROR;
|
||
| 116 | } |
||
| 117 | // initialize the content
|
||
| 118 | switch (bsmv)
|
||
| 119 | {
|
||
| 120 | case 2: |
||
| 121 | // initialize the board ID
|
||
| 122 | chFileStreamSeek((BaseFileStream*)&this->at24c01, offsetof(FileSystemIoBase::preamble_1_2, boardId));
|
||
| 123 | buffer[0] = 0; |
||
| 124 | if (chSequentialStreamWrite((BaseFileStream*)&this->at24c01, buffer, 1) != 1) { |
||
| 125 | return IO_ERROR;
|
||
| 126 | } |
||
| 127 | if (!strict) {
|
||
| 128 | break;
|
||
| 129 | } |
||
| 130 | |||
| 131 | case 1: |
||
| 132 | // initialize the bsmv, the HMV and the hmv
|
||
| 133 | chFileStreamSeek((BaseFileStream*)&this->at24c01, offsetof(FileSystemIoBase::preamble_1_1, byteStructureMinorVersion));
|
||
| 134 | buffer[0] = bsmv;
|
||
| 135 | buffer[1] = this->HMV; |
||
| 136 | buffer[2] = this->hmv; |
||
| 137 | if (chSequentialStreamWrite((BaseFileStream*)&this->at24c01, buffer, 3) != 3) { |
||
| 138 | return IO_ERROR;
|
||
| 139 | } |
||
| 140 | if (!strict) {
|
||
| 141 | break;
|
||
| 142 | } |
||
| 143 | |||
| 144 | default:
|
||
| 145 | break;
|
||
| 146 | |||
| 147 | } |
||
| 148 | break;
|
||
| 149 | |||
| 150 | default:
|
||
| 151 | break;
|
||
| 152 | } |
||
| 153 | |||
| 154 | return OK;
|
||
| 155 | } |
||
| 156 | |||
| 157 | msg_t |
||
| 158 | FileSystemIoBase:: |
||
| 159 | resetMemory() {
|
||
| 160 | return initPreamble(this->BSMV, this->bsmv, true); |
||
| 161 | } |
||
| 162 | |||
| 163 | msg_t |
||
| 164 | FileSystemIoBase:: |
||
| 165 | getBoardId (uint8_t *buffer) {
|
||
| 166 | |||
| 167 | msg_t bytesRead = 0;
|
||
| 168 | // Work around, because stm32f1 cannot read a single byte
|
||
| 169 | const uint8_t bufferSize = 2; |
||
| 170 | uint8_t bufferTmp[bufferSize] = {};
|
||
| 171 | |||
| 172 | // Get the data out of the memory
|
||
| 173 | switch (this->BSMV) { |
||
| 174 | case 0x01u: |
||
| 175 | // Set the pointer to the address
|
||
| 176 | chFileStreamSeek((BaseFileStream*)&at24c01, offsetof(FileSystemIoBase::preamble_1_2, boardId)); |
||
| 177 | if (this->bsmv >= 0x02u) { |
||
| 178 | bytesRead = chSequentialStreamRead((BaseFileStream*)&at24c01, (uint8_t*) bufferTmp, bufferSize); |
||
| 179 | } else {
|
||
| 180 | return NOT_IMPLEMENTED;
|
||
| 181 | } |
||
| 182 | break;
|
||
| 183 | } |
||
| 184 | |||
| 185 | // Store only the board id
|
||
| 186 | *buffer = bufferTmp[0];
|
||
| 187 | |||
| 188 | if (bytesRead != bufferSize) {
|
||
| 189 | return IO_ERROR;
|
||
| 190 | } else {
|
||
| 191 | return OK;
|
||
| 192 | } |
||
| 193 | } |
||
| 194 | |||
| 195 | msg_t |
||
| 196 | FileSystemIoBase:: |
||
| 197 | setBoardId (uint8_t buffer) {
|
||
| 198 | |||
| 199 | msg_t bytesWritten = 0;
|
||
| 200 | const uint8_t bufferSize = sizeof(uint8_t); |
||
| 201 | |||
| 202 | // Get the data out of the memory
|
||
| 203 | switch (this->BSMV) { |
||
| 204 | case 0x01u: |
||
| 205 | // Set the pointer to the address
|
||
| 206 | chFileStreamSeek((BaseFileStream*)&at24c01, offsetof(FileSystemIoBase::preamble_1_2, boardId)); |
||
| 207 | if (this->bsmv >= 0x02u) { |
||
| 208 | bytesWritten = chSequentialStreamWrite((BaseFileStream*)&at24c01, (const uint8_t*) &buffer, bufferSize);
|
||
| 209 | } else {
|
||
| 210 | return NOT_IMPLEMENTED;
|
||
| 211 | } |
||
| 212 | break;
|
||
| 213 | } |
||
| 214 | |||
| 215 | if (bytesWritten != bufferSize) {
|
||
| 216 | return IO_ERROR;
|
||
| 217 | } else {
|
||
| 218 | return OK;
|
||
| 219 | } |
||
| 220 | } |