Chris Womack / DMSupport

mbed support for LPC4088 Display Module

Dependencies:   DM_FATFileSystem DM_HttpServer DM_USBHost EthernetInterface USBDevice mbed-rpc mbed-rtos mbed-src

Dependents:   emptyProgram

Fork of DMSupport by Embedded Artists

Bios/BiosLoader.cpp@48:2f574ffa8b96, 2016-03-26 (annotated)

Committer:
redbird
Date:
Sat Mar 26 22:50:45 2016 +0000
Revision:
48:2f574ffa8b96
Parent:
40:6df4f63aa406 
changed pin names to make more sense

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 22:1a58a518435c 1 /*
embeddedartists 22:1a58a518435c 2 * Copyright 2014 Embedded Artists AB
embeddedartists 22:1a58a518435c 3 *
embeddedartists 22:1a58a518435c 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 22:1a58a518435c 5 * you may not use this file except in compliance with the License.
embeddedartists 22:1a58a518435c 6 * You may obtain a copy of the License at
embeddedartists 22:1a58a518435c 7 *
embeddedartists 22:1a58a518435c 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 22:1a58a518435c 9 *
embeddedartists 22:1a58a518435c 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 22:1a58a518435c 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 22:1a58a518435c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 22:1a58a518435c 13 * See the License for the specific language governing permissions and
embeddedartists 22:1a58a518435c 14 * limitations under the License.
embeddedartists 22:1a58a518435c 15 */
embeddedartists 22:1a58a518435c 16
embeddedartists 22:1a58a518435c 17 #include "mbed.h"
alindvall 40:6df4f63aa406 18 #include "us_ticker_api.h"
embeddedartists 22:1a58a518435c 19 #include "BiosLoader.h"
embeddedartists 22:1a58a518435c 20 #include "DMBoard.h"
embeddedartists 22:1a58a518435c 21 #include "BiosEEPROM.h"
embeddedartists 22:1a58a518435c 22 #include "crc.h"
embeddedartists 22:1a58a518435c 23 #include "bios.h"
embeddedartists 28:8ae20cb0b943 24 #include "meas.h"
embeddedartists 22:1a58a518435c 25
embeddedartists 22:1a58a518435c 26 #if defined(DM_BOARD_BIOS_DEVELOPMENT)
embeddedartists 22:1a58a518435c 27 #ifdef __cplusplus
embeddedartists 22:1a58a518435c 28 extern "C" {
embeddedartists 22:1a58a518435c 29 #endif
embeddedartists 26:a65fbb4bde5c 30 void bios_debug_aid(bios_header_t* header, const char** pMsg, uint32_t* paramSize);
embeddedartists 22:1a58a518435c 31 #ifdef __cplusplus
embeddedartists 22:1a58a518435c 32 }
embeddedartists 22:1a58a518435c 33 #endif
embeddedartists 22:1a58a518435c 34 #endif
embeddedartists 22:1a58a518435c 35
embeddedartists 22:1a58a518435c 36 /******************************************************************************
embeddedartists 22:1a58a518435c 37 * Defines and typedefs
embeddedartists 22:1a58a518435c 38 *****************************************************************************/
embeddedartists 22:1a58a518435c 39
embeddedartists 22:1a58a518435c 40 #define MOVE_POINTER(__x, __off) ( ( (uint32_t*)(__x) ) = (uint32_t*)( (uint32_t)(__x) + (__off) ) )
embeddedartists 22:1a58a518435c 41
embeddedartists 22:1a58a518435c 42 /*
embeddedartists 22:1a58a518435c 43 * Make sure that we reserve at least this amount of RAM for future
embeddedartists 22:1a58a518435c 44 * expansion of the BIOS. This prevents the user from squeezing out
embeddedartists 22:1a58a518435c 45 * the last drop of available RAM in his application.
embeddedartists 22:1a58a518435c 46 */
embeddedartists 22:1a58a518435c 47 #define BIOS_RESERVED_CHUNK 0x1000
embeddedartists 22:1a58a518435c 48 #define BIOS_MAX_SIZE 0x100000
embeddedartists 22:1a58a518435c 49 #ifndef MAX
embeddedartists 22:1a58a518435c 50 #define MAX(__a, __b) (((__a)>(__b))?(__a):(__b))
embeddedartists 22:1a58a518435c 51 #endif
embeddedartists 22:1a58a518435c 52
embeddedartists 26:a65fbb4bde5c 53 /*
embeddedartists 26:a65fbb4bde5c 54 * The BIOS is API compatible as long as the Major component of the
embeddedartists 26:a65fbb4bde5c 55 * version is the same.
embeddedartists 26:a65fbb4bde5c 56 */
embeddedartists 26:a65fbb4bde5c 57 #define SUPPORTED_BIOS_VER 0x000000
embeddedartists 26:a65fbb4bde5c 58 #define SUPPORTED_BIOS_MASK 0xff0000 // only look at the Major component
embeddedartists 26:a65fbb4bde5c 59 #define SUPPORTED_VERSION(__ver) (((__ver)&SUPPORTED_BIOS_MASK) == SUPPORTED_BIOS_VER)
embeddedartists 28:8ae20cb0b943 60
embeddedartists 34:fc366bab393f 61 //#define MAC_IN_SDK
embeddedartists 28:8ae20cb0b943 62
embeddedartists 22:1a58a518435c 63 /******************************************************************************
embeddedartists 22:1a58a518435c 64 * Local variables
embeddedartists 22:1a58a518435c 65 *****************************************************************************/
embeddedartists 22:1a58a518435c 66
embeddedartists 22:1a58a518435c 67 /******************************************************************************
embeddedartists 28:8ae20cb0b943 68 * Global functions
embeddedartists 28:8ae20cb0b943 69 *****************************************************************************/
embeddedartists 28:8ae20cb0b943 70
embeddedartists 28:8ae20cb0b943 71 #if !defined(MAC_IN_SDK)
embeddedartists 28:8ae20cb0b943 72 /* The LPC4088QSB platform in the MBED SDK have defined the WEAK function
embeddedartists 28:8ae20cb0b943 73 * mbed_mac_address (ethernet_api.c) to read a unique MAC address from the
embeddedartists 28:8ae20cb0b943 74 * onboard EEPROM.
embeddedartists 28:8ae20cb0b943 75 * The LPC4088DM platform in the MBED SDK does not have the WEAK function
embeddedartists 28:8ae20cb0b943 76 * so it is implemented here instead. This version of the function will ask
embeddedartists 28:8ae20cb0b943 77 * the bios for a MAC address.
embeddedartists 28:8ae20cb0b943 78 */
embeddedartists 28:8ae20cb0b943 79 void mbed_mac_address(char *mac) {
embeddedartists 28:8ae20cb0b943 80 static char cache[6];
embeddedartists 28:8ae20cb0b943 81 static bool haveIt = false;
embeddedartists 28:8ae20cb0b943 82 if (!haveIt) {
embeddedartists 28:8ae20cb0b943 83 BiosLoader::instance().getMacAddress(cache);
embeddedartists 28:8ae20cb0b943 84 haveIt = true;
embeddedartists 28:8ae20cb0b943 85 }
embeddedartists 28:8ae20cb0b943 86 memcpy(mac, cache, 6);
embeddedartists 28:8ae20cb0b943 87 }
embeddedartists 28:8ae20cb0b943 88 #endif
embeddedartists 28:8ae20cb0b943 89
embeddedartists 28:8ae20cb0b943 90 /******************************************************************************
embeddedartists 22:1a58a518435c 91 * Private Functions
embeddedartists 22:1a58a518435c 92 *****************************************************************************/
embeddedartists 22:1a58a518435c 93
embeddedartists 28:8ae20cb0b943 94 // Called by the NVIC
embeddedartists 28:8ae20cb0b943 95 static void loader_i2c0_irq_handler()
embeddedartists 28:8ae20cb0b943 96 {
embeddedartists 28:8ae20cb0b943 97 BiosLoader::instance().handleI2CInterrupt();
embeddedartists 28:8ae20cb0b943 98 }
embeddedartists 28:8ae20cb0b943 99
embeddedartists 28:8ae20cb0b943 100
embeddedartists 22:1a58a518435c 101 // Function called from the BIOS
embeddedartists 22:1a58a518435c 102 static uint32_t readTimeMs()
embeddedartists 22:1a58a518435c 103 {
embeddedartists 22:1a58a518435c 104 return us_ticker_read()/1000;
embeddedartists 22:1a58a518435c 105 }
embeddedartists 22:1a58a518435c 106
embeddedartists 22:1a58a518435c 107
embeddedartists 22:1a58a518435c 108 BiosLoader::BiosLoader() :
embeddedartists 22:1a58a518435c 109 _initialized(false),
embeddedartists 22:1a58a518435c 110 _biosData(NULL),
embeddedartists 22:1a58a518435c 111 _conf(NULL),
embeddedartists 31:d47cffcb0a3e 112 _confSize(0),
embeddedartists 31:d47cffcb0a3e 113 _stats(0)
embeddedartists 22:1a58a518435c 114 {
embeddedartists 22:1a58a518435c 115 }
embeddedartists 22:1a58a518435c 116
embeddedartists 22:1a58a518435c 117 BiosLoader::~BiosLoader()
embeddedartists 22:1a58a518435c 118 {
embeddedartists 22:1a58a518435c 119 if (_biosData != NULL) {
embeddedartists 22:1a58a518435c 120 free(_biosData);
embeddedartists 22:1a58a518435c 121 _biosData = NULL;
embeddedartists 22:1a58a518435c 122 }
embeddedartists 22:1a58a518435c 123 if (_conf != NULL) {
embeddedartists 22:1a58a518435c 124 free(_conf);
embeddedartists 22:1a58a518435c 125 _conf = NULL;
embeddedartists 22:1a58a518435c 126 _confSize = 0;
embeddedartists 22:1a58a518435c 127 }
embeddedartists 22:1a58a518435c 128 }
embeddedartists 22:1a58a518435c 129
embeddedartists 22:1a58a518435c 130 DMBoard::BoardError BiosLoader::readBIOS(uint8_t** data, uint32_t* size)
embeddedartists 22:1a58a518435c 131 {
embeddedartists 22:1a58a518435c 132 DMBoard::BoardError err = DMBoard::Ok;
embeddedartists 22:1a58a518435c 133 BiosEEPROM eeprom;
embeddedartists 22:1a58a518435c 134 file_header_t fh;
embeddedartists 22:1a58a518435c 135
embeddedartists 22:1a58a518435c 136 if (_conf != NULL) {
embeddedartists 22:1a58a518435c 137 *data = _conf;
embeddedartists 22:1a58a518435c 138 *size = _confSize;
embeddedartists 22:1a58a518435c 139 return DMBoard::Ok;
embeddedartists 22:1a58a518435c 140 }
embeddedartists 22:1a58a518435c 141
embeddedartists 22:1a58a518435c 142 do {
embeddedartists 22:1a58a518435c 143 if (!eeprom.read(0, (char*)&fh, sizeof(file_header_t))) {
embeddedartists 22:1a58a518435c 144 resetI2C();
embeddedartists 22:1a58a518435c 145 if (!eeprom.read(0, (char*)&fh, sizeof(file_header_t))) {
embeddedartists 22:1a58a518435c 146 err = DMBoard::BiosStorageError;
embeddedartists 22:1a58a518435c 147 break;
embeddedartists 22:1a58a518435c 148 }
embeddedartists 22:1a58a518435c 149 }
embeddedartists 22:1a58a518435c 150
embeddedartists 22:1a58a518435c 151 if (fh.magic != BIOS_MAGIC) {
embeddedartists 22:1a58a518435c 152 err = DMBoard::BiosInvalidError;
embeddedartists 22:1a58a518435c 153 break;
embeddedartists 22:1a58a518435c 154 }
embeddedartists 22:1a58a518435c 155
embeddedartists 26:a65fbb4bde5c 156 if (!SUPPORTED_VERSION(fh.version)) {
embeddedartists 22:1a58a518435c 157 err = DMBoard::BiosVersionError;
embeddedartists 22:1a58a518435c 158 break;
embeddedartists 22:1a58a518435c 159 }
embeddedartists 22:1a58a518435c 160
embeddedartists 22:1a58a518435c 161 if ((fh.headerSize + fh.size) > BIOS_MAX_SIZE) {
embeddedartists 22:1a58a518435c 162 err = DMBoard::BiosInvalidError;
embeddedartists 22:1a58a518435c 163 break;
embeddedartists 22:1a58a518435c 164 }
embeddedartists 22:1a58a518435c 165
embeddedartists 22:1a58a518435c 166 _confSize = fh.headerSize + fh.size;
embeddedartists 22:1a58a518435c 167 _conf = (uint8_t*)malloc(MAX(_confSize,BIOS_RESERVED_CHUNK));
embeddedartists 22:1a58a518435c 168 if (_conf == NULL) {
embeddedartists 22:1a58a518435c 169 _confSize = 0;
embeddedartists 22:1a58a518435c 170 err = DMBoard::MemoryError;
embeddedartists 22:1a58a518435c 171 break;
embeddedartists 22:1a58a518435c 172 }
embeddedartists 22:1a58a518435c 173
embeddedartists 22:1a58a518435c 174 if (!eeprom.read(0, (char*)_conf, _confSize)) {
embeddedartists 22:1a58a518435c 175 err = DMBoard::BiosStorageError;
embeddedartists 22:1a58a518435c 176 break;
embeddedartists 22:1a58a518435c 177 }
embeddedartists 22:1a58a518435c 178
embeddedartists 22:1a58a518435c 179 uint32_t crc = crc_Buffer((uint32_t*)(&_conf[fh.headerSize]), fh.size/4);
embeddedartists 22:1a58a518435c 180 if (crc != fh.crc) {
embeddedartists 22:1a58a518435c 181 err = DMBoard::BiosInvalidError;
embeddedartists 22:1a58a518435c 182 break;
embeddedartists 22:1a58a518435c 183 }
embeddedartists 22:1a58a518435c 184
embeddedartists 22:1a58a518435c 185 // Bios header has been verified and seems ok
embeddedartists 22:1a58a518435c 186 *data = _conf;
embeddedartists 22:1a58a518435c 187 *size = _confSize;
embeddedartists 31:d47cffcb0a3e 188 _stats = fh.version;
embeddedartists 22:1a58a518435c 189 err = DMBoard::Ok;
embeddedartists 22:1a58a518435c 190 } while (false);
embeddedartists 22:1a58a518435c 191
embeddedartists 22:1a58a518435c 192 if (err != DMBoard::Ok) {
embeddedartists 22:1a58a518435c 193 if (_conf != NULL) {
embeddedartists 22:1a58a518435c 194 free(_conf);
embeddedartists 22:1a58a518435c 195 _conf = NULL;
embeddedartists 22:1a58a518435c 196 _confSize = 0;
embeddedartists 22:1a58a518435c 197 }
embeddedartists 22:1a58a518435c 198 }
embeddedartists 22:1a58a518435c 199
embeddedartists 22:1a58a518435c 200 return err;
embeddedartists 22:1a58a518435c 201 }
embeddedartists 22:1a58a518435c 202
embeddedartists 22:1a58a518435c 203 DMBoard::BoardError BiosLoader::params(bios_header_t** header, void** instanceData)
embeddedartists 22:1a58a518435c 204 {
embeddedartists 22:1a58a518435c 205 if (!_initialized) {
embeddedartists 22:1a58a518435c 206 DMBoard::BoardError err = init();
embeddedartists 22:1a58a518435c 207 if (err != DMBoard::Ok) {
embeddedartists 22:1a58a518435c 208 return err;
embeddedartists 22:1a58a518435c 209 }
embeddedartists 22:1a58a518435c 210 }
embeddedartists 22:1a58a518435c 211 if (_initialized) {
embeddedartists 22:1a58a518435c 212 *header = &_bios;
embeddedartists 22:1a58a518435c 213 *instanceData = _biosData;
embeddedartists 22:1a58a518435c 214 return DMBoard::Ok;
embeddedartists 22:1a58a518435c 215 } else {
embeddedartists 22:1a58a518435c 216 return DMBoard::BiosInvalidError;
embeddedartists 22:1a58a518435c 217 }
embeddedartists 22:1a58a518435c 218 }
embeddedartists 22:1a58a518435c 219
embeddedartists 22:1a58a518435c 220 DMBoard::BoardError BiosLoader::init()
embeddedartists 22:1a58a518435c 221 {
embeddedartists 22:1a58a518435c 222 DMBoard::BoardError err = DMBoard::Ok;
embeddedartists 22:1a58a518435c 223 if (!_initialized) {
embeddedartists 22:1a58a518435c 224 do {
embeddedartists 22:1a58a518435c 225
embeddedartists 22:1a58a518435c 226 // Get the display bios from the DMBoard. DMBoard will have verified it
embeddedartists 22:1a58a518435c 227 // and will keep it in RAM so there is no need to copy it.
embeddedartists 22:1a58a518435c 228 uint8_t* p = NULL;
embeddedartists 22:1a58a518435c 229 uint32_t size = 0;
embeddedartists 22:1a58a518435c 230 err = readBIOS(&p, &size);
embeddedartists 29:b1ec19000e15 231 if (err != DMBoard::Ok) {
embeddedartists 22:1a58a518435c 232 break;
embeddedartists 22:1a58a518435c 233 }
embeddedartists 22:1a58a518435c 234
embeddedartists 28:8ae20cb0b943 235 #if defined(MAC_IN_SDK)
embeddedartists 27:0499c29688cc 236 // The BIOS has been read so we know that the I2C bus is working. After the
embeddedartists 27:0499c29688cc 237 // BIOS is "started" it will take ownership of the bus and it can cause
embeddedartists 27:0499c29688cc 238 // problems for other peripherals on it. The only other peripheral today
embeddedartists 27:0499c29688cc 239 // is the EEPROM with the MAC address. It is read by mbed_mac_address() in
embeddedartists 27:0499c29688cc 240 // ethernet_api.c in the SDK and it will be cached. By reading it here now
embeddedartists 27:0499c29688cc 241 // we prevent future access to the I2C bus.
embeddedartists 27:0499c29688cc 242 char mac[6] = {0};
embeddedartists 27:0499c29688cc 243 mbed_mac_address(mac);
embeddedartists 28:8ae20cb0b943 244 #endif
embeddedartists 27:0499c29688cc 245
embeddedartists 22:1a58a518435c 246 // Extract the function pointers so that they can be modified to match the
embeddedartists 22:1a58a518435c 247 // actual location of the code
embeddedartists 22:1a58a518435c 248 file_header_t* file_header = (file_header_t*)p;
embeddedartists 22:1a58a518435c 249 memcpy(&_bios, &file_header->header, sizeof(bios_header_t));
embeddedartists 22:1a58a518435c 250
embeddedartists 22:1a58a518435c 251 // Allocate memory for the BIOS instance data
embeddedartists 22:1a58a518435c 252 _biosData = malloc(file_header->paramSize);
embeddedartists 22:1a58a518435c 253 if (_biosData == NULL) {
embeddedartists 22:1a58a518435c 254 err = DMBoard::MemoryError;
embeddedartists 22:1a58a518435c 255 break;
embeddedartists 22:1a58a518435c 256 }
embeddedartists 22:1a58a518435c 257
embeddedartists 22:1a58a518435c 258 // All offsets must be moved by two factors:
embeddedartists 22:1a58a518435c 259 // 1) The position of the code in RAM (location of "p")
embeddedartists 22:1a58a518435c 260 // 2) The header size (the code/data comes after it)
embeddedartists 22:1a58a518435c 261 uint32_t offset = ((uint32_t)p) + file_header->headerSize;
embeddedartists 22:1a58a518435c 262 uint32_t* functions = (uint32_t*)&_bios;
embeddedartists 29:b1ec19000e15 263 for (uint32_t i = 0; i < (sizeof(bios_header_t)/sizeof(uint32_t)); i++) {
embeddedartists 22:1a58a518435c 264 functions[i] += offset;
embeddedartists 22:1a58a518435c 265 }
embeddedartists 22:1a58a518435c 266
embeddedartists 22:1a58a518435c 267 #if defined(DM_BOARD_BIOS_DEVELOPMENT)
embeddedartists 22:1a58a518435c 268 // This requires that the project contains the source code for the BIOS
embeddedartists 24:9a677afc86f1 269 const char* msg;
embeddedartists 26:a65fbb4bde5c 270 uint32_t tmp = 0;
embeddedartists 26:a65fbb4bde5c 271 bios_debug_aid(&_bios, &msg, &tmp);
embeddedartists 26:a65fbb4bde5c 272 if (tmp > file_header->paramSize) {
embeddedartists 26:a65fbb4bde5c 273 free(_biosData);
embeddedartists 26:a65fbb4bde5c 274 _biosData = malloc(tmp);
embeddedartists 26:a65fbb4bde5c 275 if (_biosData == NULL) {
embeddedartists 26:a65fbb4bde5c 276 err = DMBoard::MemoryError;
embeddedartists 26:a65fbb4bde5c 277 break;
embeddedartists 26:a65fbb4bde5c 278 }
embeddedartists 26:a65fbb4bde5c 279 }
embeddedartists 24:9a677afc86f1 280 DMBoard::instance().logger()->printf("BIOS info: %s\n", msg);
embeddedartists 22:1a58a518435c 281 #endif
embeddedartists 22:1a58a518435c 282
embeddedartists 22:1a58a518435c 283 // Prepare the BIOS instance data before calling the first function
embeddedartists 22:1a58a518435c 284 BiosError_t e = _bios.initParams(_biosData, SystemCoreClock, PeripheralClock, wait_us, readTimeMs);
embeddedartists 22:1a58a518435c 285 if (e != BiosError_Ok) {
embeddedartists 22:1a58a518435c 286 err = DMBoard::BiosInvalidError;
embeddedartists 22:1a58a518435c 287 break;
embeddedartists 22:1a58a518435c 288 }
embeddedartists 28:8ae20cb0b943 289
embeddedartists 28:8ae20cb0b943 290 // Setup the mandatory I2C0 interrupt handler after initParams but before all other calls
embeddedartists 28:8ae20cb0b943 291 NVIC_DisableIRQ(I2C0_IRQn);
embeddedartists 28:8ae20cb0b943 292 NVIC_SetVector(I2C0_IRQn, (uint32_t)loader_i2c0_irq_handler);
embeddedartists 28:8ae20cb0b943 293 NVIC_EnableIRQ(I2C0_IRQn);
embeddedartists 22:1a58a518435c 294
embeddedartists 22:1a58a518435c 295 _initialized = true;
embeddedartists 22:1a58a518435c 296 } while(0);
embeddedartists 22:1a58a518435c 297 }
embeddedartists 22:1a58a518435c 298 return err;
embeddedartists 22:1a58a518435c 299 }
embeddedartists 22:1a58a518435c 300
embeddedartists 22:1a58a518435c 301 void BiosLoader::resetI2C()
embeddedartists 22:1a58a518435c 302 {
embeddedartists 22:1a58a518435c 303 DMBoard::instance().logger()->printf("BiosLoader::resetI2C()\n");
embeddedartists 22:1a58a518435c 304 DigitalOut reset(P0_23);
embeddedartists 22:1a58a518435c 305 reset = 0;
embeddedartists 22:1a58a518435c 306 wait_ms(1);
embeddedartists 22:1a58a518435c 307 reset = 1;
embeddedartists 22:1a58a518435c 308 wait_ms(10);
embeddedartists 22:1a58a518435c 309 }
embeddedartists 22:1a58a518435c 310
embeddedartists 22:1a58a518435c 311
embeddedartists 22:1a58a518435c 312 /******************************************************************************
embeddedartists 22:1a58a518435c 313 * Public Functions
embeddedartists 22:1a58a518435c 314 *****************************************************************************/
embeddedartists 22:1a58a518435c 315
embeddedartists 22:1a58a518435c 316 bool BiosLoader::isKnownSPIFIMemory(uint8_t mfgr, uint8_t devType, uint8_t devID, uint32_t memSize, uint32_t* eraseBlockSize)
embeddedartists 22:1a58a518435c 317 {
embeddedartists 22:1a58a518435c 318 if (!_initialized) {
embeddedartists 22:1a58a518435c 319 DMBoard::BoardError err = init();
embeddedartists 22:1a58a518435c 320 if (err != DMBoard::Ok) {
embeddedartists 22:1a58a518435c 321 return false;
embeddedartists 22:1a58a518435c 322 }
embeddedartists 22:1a58a518435c 323 }
embeddedartists 22:1a58a518435c 324 if (_initialized) {
embeddedartists 22:1a58a518435c 325 bool known = false;
embeddedartists 22:1a58a518435c 326 BiosError_t err = _bios.spifiIsSupported(_biosData, mfgr,devType,devID,memSize,&known,eraseBlockSize);
embeddedartists 22:1a58a518435c 327 if (err == BiosError_Ok) {
embeddedartists 22:1a58a518435c 328 return known;
embeddedartists 22:1a58a518435c 329 }
embeddedartists 22:1a58a518435c 330 }
embeddedartists 22:1a58a518435c 331 return false;
embeddedartists 22:1a58a518435c 332 }
embeddedartists 28:8ae20cb0b943 333
embeddedartists 28:8ae20cb0b943 334 void BiosLoader::getMacAddress(char mac[6])
embeddedartists 28:8ae20cb0b943 335 {
embeddedartists 28:8ae20cb0b943 336 if (!_initialized) {
embeddedartists 28:8ae20cb0b943 337 init();
embeddedartists 28:8ae20cb0b943 338 }
embeddedartists 28:8ae20cb0b943 339 if (_initialized) {
embeddedartists 28:8ae20cb0b943 340 BiosError_t err = _bios.ethernetMac(_biosData, mac);
embeddedartists 28:8ae20cb0b943 341 if (err == BiosError_Ok) {
embeddedartists 28:8ae20cb0b943 342 return;
embeddedartists 28:8ae20cb0b943 343 }
embeddedartists 28:8ae20cb0b943 344 }
embeddedartists 28:8ae20cb0b943 345
embeddedartists 28:8ae20cb0b943 346 // We always consider the MAC address to be retrieved even though
embeddedartists 28:8ae20cb0b943 347 // reading is failed. If it wasn't possible to read then the default
embeddedartists 28:8ae20cb0b943 348 // address will be used.
embeddedartists 28:8ae20cb0b943 349 mac[0] = 0x00;
embeddedartists 28:8ae20cb0b943 350 mac[1] = 0x02;
embeddedartists 28:8ae20cb0b943 351 mac[2] = 0xF7;
embeddedartists 28:8ae20cb0b943 352 mac[3] = 0xF0;
embeddedartists 28:8ae20cb0b943 353 mac[4] = 0x00;
embeddedartists 28:8ae20cb0b943 354 mac[5] = 0x01;
embeddedartists 28:8ae20cb0b943 355 }
embeddedartists 28:8ae20cb0b943 356
embeddedartists 28:8ae20cb0b943 357 void BiosLoader::handleI2CInterrupt()
embeddedartists 28:8ae20cb0b943 358 {
embeddedartists 28:8ae20cb0b943 359 _bios.i2cIRQHandler(_biosData);
embeddedartists 28:8ae20cb0b943 360 }
embeddedartists 28:8ae20cb0b943 361
embeddedartists 31:d47cffcb0a3e 362 void BiosLoader::getBiosStats(uint8_t& type, uint8_t& major, uint8_t& minor, uint8_t& rev)
embeddedartists 31:d47cffcb0a3e 363 {
embeddedartists 31:d47cffcb0a3e 364 type = (_stats >> 24) & 0xff;
embeddedartists 31:d47cffcb0a3e 365 major = (_stats >> 16) & 0xff;
embeddedartists 31:d47cffcb0a3e 366 minor = (_stats >> 8) & 0xff;
embeddedartists 31:d47cffcb0a3e 367 rev = (_stats >> 0) & 0xff;
embeddedartists 31:d47cffcb0a3e 368 }
embeddedartists 31:d47cffcb0a3e 369