amiro-os / components / FileSystemInputOutput / FileSystemInputOutputBase.cpp @ 61544eee
History | View | Annotate | Download (6.35 KB)
| 1 |
#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 |
} |