test / EALib

A library with drivers for different peripherals on the LPC4088 QuickStart Board or related add-on boards.

Dependencies:   FATFileSystem

Dependents:   bare

Fork of EALib by EmbeddedArtists AB

QSPIFileSystem.cpp@13:64f3dd338612, 2014-03-27 (annotated)

Committer:
koiamk
Date:
Thu Mar 27 22:43:39 2014 +0000
Revision:
13:64f3dd338612
Parent:
12:15597e45eea0 
o;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 12:15597e45eea0 1 /*
embeddedartists 12:15597e45eea0 2 * Copyright 2013 Embedded Artists AB
embeddedartists 12:15597e45eea0 3 *
embeddedartists 12:15597e45eea0 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 12:15597e45eea0 5 * you may not use this file except in compliance with the License.
embeddedartists 12:15597e45eea0 6 * You may obtain a copy of the License at
embeddedartists 12:15597e45eea0 7 *
embeddedartists 12:15597e45eea0 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 12:15597e45eea0 9 *
embeddedartists 12:15597e45eea0 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 12:15597e45eea0 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 12:15597e45eea0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 12:15597e45eea0 13 * See the License for the specific language governing permissions and
embeddedartists 12:15597e45eea0 14 * limitations under the License.
embeddedartists 12:15597e45eea0 15 */
embeddedartists 12:15597e45eea0 16
embeddedartists 0:0fdadbc3d852 17 #include "QSPIFileSystem.h"
embeddedartists 0:0fdadbc3d852 18 #include "mbed_debug.h"
embeddedartists 0:0fdadbc3d852 19
embeddedartists 8:fe3cb3fbb64e 20 #include "SPIFI.h"
embeddedartists 0:0fdadbc3d852 21
embeddedartists 0:0fdadbc3d852 22 /******************************************************************************
embeddedartists 0:0fdadbc3d852 23 * Defines and typedefs
embeddedartists 0:0fdadbc3d852 24 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 25
embeddedartists 0:0fdadbc3d852 26 #define QSPI_DBG 0
embeddedartists 0:0fdadbc3d852 27
embeddedartists 0:0fdadbc3d852 28 #define IS_ADDR_IN_SPIFI(__addr) ( (((uint32_t)(__addr)) & 0xff000000) == SPIFI_MEM_BASE )
embeddedartists 0:0fdadbc3d852 29
embeddedartists 8:fe3cb3fbb64e 30 #define MEM_SIZE (memInfo.memSize)
embeddedartists 8:fe3cb3fbb64e 31 #define ERASE_SIZE (memInfo.eraseBlockSize)
embeddedartists 8:fe3cb3fbb64e 32 #define NUM_BLOCKS (memInfo.numEraseBlocks)
embeddedartists 0:0fdadbc3d852 33
embeddedartists 0:0fdadbc3d852 34 typedef uint32_t toc_entry_t;
embeddedartists 0:0fdadbc3d852 35
embeddedartists 0:0fdadbc3d852 36 #define TOC_BLOCK_ADDR (memInfo.tocBlockAddr) //(SPIFI_MEM_BASE + (NUM_BLOCKS - 1)*ERASE_SIZE)
embeddedartists 0:0fdadbc3d852 37 #define TOC_SIZE (memInfo.tocSizeInBytes) //(sizeof(toc_entry_t) * NUM_BLOCKS)
embeddedartists 0:0fdadbc3d852 38 #define NUM_TOCS (memInfo.numTocs) //((int)(ERASE_SIZE/TOC_SIZE))
embeddedartists 0:0fdadbc3d852 39 #define NUM_TOC_BLOCKS ((NUM_TOCS * TOC_SIZE) / ERASE_SIZE)
embeddedartists 0:0fdadbc3d852 40 #define NUM_TOC_ENTRIES ((int)(TOC_SIZE/sizeof(toc_entry_t)))
embeddedartists 0:0fdadbc3d852 41
embeddedartists 0:0fdadbc3d852 42 #define TOC_UNUSED (0xffffffff)
embeddedartists 0:0fdadbc3d852 43 #define TOC_MAX (NUM_BLOCKS - 1)
embeddedartists 0:0fdadbc3d852 44 #define TOC_VALID_MASK (1UL<<31)
embeddedartists 0:0fdadbc3d852 45 #define TOC_RESERVED_MASK (1UL<<30)
embeddedartists 0:0fdadbc3d852 46 #define TOC_USED_MASK (1UL<<29)
embeddedartists 0:0fdadbc3d852 47 #define TOC_FILE_MASK (1UL<<28)
embeddedartists 0:0fdadbc3d852 48 #define TOC_FSIZE_MASK (0x3ffff)
embeddedartists 0:0fdadbc3d852 49 #define TOC_MANDAT_SET_MASK (0x0ffc0000)
embeddedartists 0:0fdadbc3d852 50
embeddedartists 0:0fdadbc3d852 51 #define MANDATORY_BITS_SET(__v) (((__v)&TOC_MANDAT_SET_MASK) == TOC_MANDAT_SET_MASK)
embeddedartists 0:0fdadbc3d852 52
embeddedartists 0:0fdadbc3d852 53 #define VALID_TOC_ENTRY(__v) (((__v)&TOC_VALID_MASK) == 0)
embeddedartists 0:0fdadbc3d852 54 #define USED_TOC_ENTRY(__v) (VALID_TOC_ENTRY(__v) && (((__v)&TOC_USED_MASK) == 0))
embeddedartists 0:0fdadbc3d852 55 #define TOC_IS_FILE(__v) (USED_TOC_ENTRY(__v) && (((__v)&TOC_FILE_MASK) == 0))
embeddedartists 0:0fdadbc3d852 56 #define TOC_IS_RESERVED(__v) (VALID_TOC_ENTRY(__v) && (((__v)&TOC_RESERVED_MASK) == 0))
embeddedartists 0:0fdadbc3d852 57 #define FILESIZE(__v) ((__v) & 0x3ffff)
embeddedartists 0:0fdadbc3d852 58
embeddedartists 0:0fdadbc3d852 59 #define FS_MIN(__a, __b) (((__a) < (__b)) ? (__a) : (__b))
embeddedartists 0:0fdadbc3d852 60
embeddedartists 0:0fdadbc3d852 61 // Mask to compare the different access modes. In LPCXpresso this was defined
embeddedartists 0:0fdadbc3d852 62 // but not in uVision
embeddedartists 0:0fdadbc3d852 63 #ifndef O_ACCMODE
embeddedartists 0:0fdadbc3d852 64 #define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
embeddedartists 0:0fdadbc3d852 65 #endif
embeddedartists 0:0fdadbc3d852 66
embeddedartists 0:0fdadbc3d852 67
embeddedartists 0:0fdadbc3d852 68 /*
embeddedartists 0:0fdadbc3d852 69 * The file header currently only consists of the filename (including path)
embeddedartists 0:0fdadbc3d852 70 * and the string terminating character, but by separating the file name
embeddedartists 0:0fdadbc3d852 71 * length from the size of the header in the code it allows future additions
embeddedartists 0:0fdadbc3d852 72 * to the header without too much code modification.
embeddedartists 0:0fdadbc3d852 73 */
embeddedartists 0:0fdadbc3d852 74 #define HEADER_DNAME_MAXLEN (250)
embeddedartists 0:0fdadbc3d852 75 #define HEADER_FNAME_STRLEN (HEADER_DNAME_MAXLEN + 5)
embeddedartists 0:0fdadbc3d852 76 #define HEADER_FNAME_LEN (HEADER_FNAME_STRLEN + 1)
embeddedartists 0:0fdadbc3d852 77 #define HEADER_LEN (HEADER_FNAME_LEN) // only filename in header for now
embeddedartists 0:0fdadbc3d852 78
embeddedartists 0:0fdadbc3d852 79 typedef enum
embeddedartists 0:0fdadbc3d852 80 {
embeddedartists 0:0fdadbc3d852 81 FS_OK,
embeddedartists 0:0fdadbc3d852 82 FS_ERR_NOT_FORMATTED,
embeddedartists 0:0fdadbc3d852 83 FS_ERR_NO_FILE,
embeddedartists 0:0fdadbc3d852 84 FS_ERR_FILE_EXIST,
embeddedartists 0:0fdadbc3d852 85 FS_ERR_INVALID_PARAM,
embeddedartists 0:0fdadbc3d852 86 FS_ERR_DISK_FULL,
embeddedartists 0:0fdadbc3d852 87 FS_ERR_SPIFI,
embeddedartists 0:0fdadbc3d852 88 FS_ERR_MALLOC,
embeddedartists 0:0fdadbc3d852 89
embeddedartists 0:0fdadbc3d852 90 // FS_ERR_SPIFI_* return codes are listed in the User's Manual
embeddedartists 0:0fdadbc3d852 91 // as possible return values from spifi_init(), spifi_program()
embeddedartists 0:0fdadbc3d852 92 // and spifi_erase() calls.
embeddedartists 0:0fdadbc3d852 93 FS_ERR_SPIFI_INTERNAL_ERROR = 0x20002, // 0x20002, Internal error in API code
embeddedartists 0:0fdadbc3d852 94 FS_ERR_SPIFI_TIMEOUT = 0x20003, // 0x20003, Time-out waiting for program or erase to begin: protection could not be removed.
embeddedartists 0:0fdadbc3d852 95 FS_ERR_SPIFI_OPERAND = 0x20004, // 0x20004, Operand error (i.e. invalid params)
embeddedartists 0:0fdadbc3d852 96 FS_ERR_SPIFI_STATUS = 0x20005, // 0x20005, Device status error
embeddedartists 0:0fdadbc3d852 97 FS_ERR_SPIFI_EXT_DEVICE_ID = 0x20006, // 0x20006, Unknown extended device ID value
embeddedartists 0:0fdadbc3d852 98 FS_ERR_SPIFI_DEVICE_ID = 0x20007, // 0x20007, Unknown device ID code
embeddedartists 0:0fdadbc3d852 99 FS_ERR_SPIFI_DEVICE_TYPE = 0x20008, // 0x20008, Unknown device type code
embeddedartists 0:0fdadbc3d852 100 FS_ERR_SPIFI_MANUFACTURER = 0x20009, // 0x20009, Unknown manufacturer code
embeddedartists 0:0fdadbc3d852 101 FS_ERR_SPIFI_INVALID_JDEC_ID = 0x2000A, // 0x2000A, No operative serial flash (JEDEC ID all zeroes or all ones)
embeddedartists 0:0fdadbc3d852 102 FS_ERR_SPIFI_ERASE_CONFLICT = 0x2000B, // 0x2000B, S_CALLER_ERASE is included in options, and erasure is required.
embeddedartists 0:0fdadbc3d852 103 FS_ERR_SPIFI_VERIFICATION, // other, Other non-zero values can occur if options selects verification.
embeddedartists 0:0fdadbc3d852 104 // They will be the address in the SPIFI memory area at which the first discrepancy was found.
embeddedartists 0:0fdadbc3d852 105 } fresult;
embeddedartists 0:0fdadbc3d852 106
embeddedartists 0:0fdadbc3d852 107 // The number of times to re-attempt a spifi_program() or spifi_erase()
embeddedartists 0:0fdadbc3d852 108 // if the last one reported a verification error.
embeddedartists 0:0fdadbc3d852 109 #define NUM_VERIFICATION_ATTEMPTS (1)
embeddedartists 0:0fdadbc3d852 110
embeddedartists 0:0fdadbc3d852 111 typedef struct
embeddedartists 0:0fdadbc3d852 112 {
embeddedartists 0:0fdadbc3d852 113 uint32_t memSize;
embeddedartists 0:0fdadbc3d852 114 uint32_t eraseBlockSize;
embeddedartists 0:0fdadbc3d852 115 uint32_t numEraseBlocks;
embeddedartists 0:0fdadbc3d852 116 uint32_t tocBlockAddr;
embeddedartists 0:0fdadbc3d852 117 uint32_t numTocs;
embeddedartists 0:0fdadbc3d852 118 uint32_t tocSizeInBytes;
embeddedartists 0:0fdadbc3d852 119 char memName[30];
embeddedartists 0:0fdadbc3d852 120 } meminfo_t;
embeddedartists 0:0fdadbc3d852 121
embeddedartists 0:0fdadbc3d852 122 typedef struct
embeddedartists 0:0fdadbc3d852 123 {
embeddedartists 0:0fdadbc3d852 124 int tocIdx;
embeddedartists 0:0fdadbc3d852 125 uint32_t size;
embeddedartists 0:0fdadbc3d852 126 uint16_t lastBlock;
embeddedartists 0:0fdadbc3d852 127 } fileHandle_t;
embeddedartists 0:0fdadbc3d852 128
embeddedartists 0:0fdadbc3d852 129 /******************************************************************************
embeddedartists 0:0fdadbc3d852 130 * Local variables
embeddedartists 0:0fdadbc3d852 131 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 132
embeddedartists 8:fe3cb3fbb64e 133 static toc_entry_t* TOC = NULL;
embeddedartists 0:0fdadbc3d852 134 static int activeTOC = -1;
embeddedartists 0:0fdadbc3d852 135
embeddedartists 0:0fdadbc3d852 136 static const SPIFI_RTNS *spifi = NULL;
embeddedartists 8:fe3cb3fbb64e 137 static SPIFIobj* obj;
embeddedartists 0:0fdadbc3d852 138 static SPIFIopers opers;
embeddedartists 0:0fdadbc3d852 139
embeddedartists 0:0fdadbc3d852 140 static char addr_conflict_buff[PROG_SIZE];
embeddedartists 0:0fdadbc3d852 141
embeddedartists 0:0fdadbc3d852 142 static meminfo_t memInfo = {0,0,0,0,0,0,{0}};
embeddedartists 0:0fdadbc3d852 143
embeddedartists 0:0fdadbc3d852 144 /******************************************************************************
embeddedartists 0:0fdadbc3d852 145 * Forward Declarations of Local Functions
embeddedartists 0:0fdadbc3d852 146 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 147 static fresult qspifs_init();
embeddedartists 0:0fdadbc3d852 148 static fresult qspifs_translateSpifiError(int rc);
embeddedartists 0:0fdadbc3d852 149 static fresult qspifs_readTOC(void);
embeddedartists 0:0fdadbc3d852 150 static fresult qspifs_saveTOC(void);
embeddedartists 0:0fdadbc3d852 151 static fresult qspifs_findFile(const char* filename, fileHandle_t* fh);
embeddedartists 0:0fdadbc3d852 152 static fresult qspifs_fileSize(int tocIdx, uint32_t* pSize);
embeddedartists 0:0fdadbc3d852 153 static fresult qspifs_eraseBlock(int block);
embeddedartists 0:0fdadbc3d852 154 static fresult qspifs_allocateFile(const char* filename, int neededBlocks, int* pTocIdx);
embeddedartists 0:0fdadbc3d852 155 static void qspifs_deleteFile(fileHandle_t* fh);
embeddedartists 0:0fdadbc3d852 156 static fresult qspifs_allocateSpace(fileHandle_t* fh, uint32_t size);
embeddedartists 0:0fdadbc3d852 157 static fresult qspifs_format(unsigned int minReservedBytes);
embeddedartists 0:0fdadbc3d852 158 static fresult qspifs_write(fileHandle_t* fh, const uint8_t * const pData, uint32_t size);
embeddedartists 0:0fdadbc3d852 159 static bool qspifs_startsWith(const char* prefix, const char* str);
embeddedartists 0:0fdadbc3d852 160
embeddedartists 0:0fdadbc3d852 161 /******************************************************************************
embeddedartists 0:0fdadbc3d852 162 * Local Functions
embeddedartists 0:0fdadbc3d852 163 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 164
embeddedartists 0:0fdadbc3d852 165 /******************************************************************************
embeddedartists 0:0fdadbc3d852 166 *
embeddedartists 0:0fdadbc3d852 167 * Description:
embeddedartists 0:0fdadbc3d852 168 * Initializes spifi, identifies the chip and reads the file system's
embeddedartists 0:0fdadbc3d852 169 * table of content.
embeddedartists 0:0fdadbc3d852 170 *
embeddedartists 0:0fdadbc3d852 171 * Params:
embeddedartists 0:0fdadbc3d852 172 * None
embeddedartists 0:0fdadbc3d852 173 *
embeddedartists 0:0fdadbc3d852 174 * Returns:
embeddedartists 0:0fdadbc3d852 175 * FS_OK or one of the FS_ERR_* error codes
embeddedartists 0:0fdadbc3d852 176 *
embeddedartists 0:0fdadbc3d852 177 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 178 static fresult qspifs_init()
embeddedartists 0:0fdadbc3d852 179 {
embeddedartists 0:0fdadbc3d852 180 if (spifi == NULL) {
embeddedartists 8:fe3cb3fbb64e 181 SPIFI::SpifiError err;
embeddedartists 8:fe3cb3fbb64e 182 err = SPIFI::instance().init();
embeddedartists 8:fe3cb3fbb64e 183 if (err != SPIFI::Ok) {
embeddedartists 8:fe3cb3fbb64e 184 spifi = NULL;
embeddedartists 8:fe3cb3fbb64e 185 return FS_ERR_SPIFI;
embeddedartists 8:fe3cb3fbb64e 186 }
embeddedartists 0:0fdadbc3d852 187
embeddedartists 8:fe3cb3fbb64e 188 SPIFI::instance().internalData(&obj, &spifi);
embeddedartists 0:0fdadbc3d852 189
embeddedartists 0:0fdadbc3d852 190 /* Make sure it is a tested flash module */
embeddedartists 8:fe3cb3fbb64e 191 switch (SPIFI::instance().device()) {
embeddedartists 8:fe3cb3fbb64e 192 case SPIFI::Spansion_S25FL032:
embeddedartists 8:fe3cb3fbb64e 193 /* For the Spansion memory the TOC occupies 256bytes and the TOC block will
embeddedartists 8:fe3cb3fbb64e 194 hold 256 TOCs. */
embeddedartists 8:fe3cb3fbb64e 195 strcpy(memInfo.memName, "Spansion S25FL032");
embeddedartists 8:fe3cb3fbb64e 196 memInfo.memSize = obj->memSize;
embeddedartists 8:fe3cb3fbb64e 197 memInfo.eraseBlockSize = 64*1024;
embeddedartists 8:fe3cb3fbb64e 198 memInfo.numEraseBlocks = memInfo.memSize / memInfo.eraseBlockSize;
embeddedartists 8:fe3cb3fbb64e 199 memInfo.tocSizeInBytes = sizeof(toc_entry_t) * memInfo.numEraseBlocks;
embeddedartists 8:fe3cb3fbb64e 200 memInfo.numTocs = memInfo.eraseBlockSize / memInfo.tocSizeInBytes;
embeddedartists 8:fe3cb3fbb64e 201 memInfo.tocBlockAddr = SPIFI_MEM_BASE + (NUM_BLOCKS * ERASE_SIZE) - (memInfo.numTocs * memInfo.tocSizeInBytes);
embeddedartists 8:fe3cb3fbb64e 202 break;
embeddedartists 0:0fdadbc3d852 203
embeddedartists 8:fe3cb3fbb64e 204 case SPIFI::Winbond_W25Q64FV:
embeddedartists 8:fe3cb3fbb64e 205 /* For the Winbond memory the TOC occupies 8192 bytes and that is bigger than
embeddedartists 8:fe3cb3fbb64e 206 one erase block (which is 4096 bytes). It is possible to either keep only
embeddedartists 8:fe3cb3fbb64e 207 one TOC or to create a couple to reduce wear on the memory. In this case
embeddedartists 8:fe3cb3fbb64e 208 the multiple TOCs option is used. */
embeddedartists 8:fe3cb3fbb64e 209 strcpy(memInfo.memName, "Winbond W25Q64FV");
embeddedartists 8:fe3cb3fbb64e 210 memInfo.memSize = obj->memSize;
embeddedartists 8:fe3cb3fbb64e 211 memInfo.eraseBlockSize = 4*1024;
embeddedartists 8:fe3cb3fbb64e 212 memInfo.numEraseBlocks = memInfo.memSize / memInfo.eraseBlockSize;
embeddedartists 8:fe3cb3fbb64e 213 memInfo.tocSizeInBytes = sizeof(toc_entry_t) * memInfo.numEraseBlocks;
embeddedartists 8:fe3cb3fbb64e 214 memInfo.numTocs = 8;
embeddedartists 8:fe3cb3fbb64e 215 memInfo.tocBlockAddr = SPIFI_MEM_BASE + (NUM_BLOCKS * ERASE_SIZE) - (memInfo.numTocs * memInfo.tocSizeInBytes);
embeddedartists 8:fe3cb3fbb64e 216 break;
embeddedartists 8:fe3cb3fbb64e 217
embeddedartists 8:fe3cb3fbb64e 218 case SPIFI::UnknownDevice:
embeddedartists 8:fe3cb3fbb64e 219 default:
embeddedartists 8:fe3cb3fbb64e 220 debug("INIT: Memory is unknown and may not work as expected\n");
embeddedartists 8:fe3cb3fbb64e 221
embeddedartists 8:fe3cb3fbb64e 222 // Asuming it has 64Kb erase blocks (i.e. same setup as the Spansion S25FL032
embeddedartists 8:fe3cb3fbb64e 223 strcpy(memInfo.memName, "Unknown - check ID");
embeddedartists 8:fe3cb3fbb64e 224 memInfo.memSize = obj->memSize;
embeddedartists 8:fe3cb3fbb64e 225 memInfo.eraseBlockSize = 64*1024;
embeddedartists 8:fe3cb3fbb64e 226 memInfo.numEraseBlocks = memInfo.memSize / memInfo.eraseBlockSize;
embeddedartists 8:fe3cb3fbb64e 227 memInfo.tocSizeInBytes = sizeof(toc_entry_t) * memInfo.numEraseBlocks;
embeddedartists 8:fe3cb3fbb64e 228 memInfo.numTocs = memInfo.eraseBlockSize / memInfo.tocSizeInBytes;
embeddedartists 8:fe3cb3fbb64e 229 memInfo.tocBlockAddr = SPIFI_MEM_BASE + (NUM_BLOCKS * ERASE_SIZE) - (memInfo.numTocs * memInfo.tocSizeInBytes);
embeddedartists 0:0fdadbc3d852 230
embeddedartists 8:fe3cb3fbb64e 231 /*
embeddedartists 8:fe3cb3fbb64e 232 * If this happens, check the manufacturer and device information
embeddedartists 8:fe3cb3fbb64e 233 * and compare with the data sheet for your chip. Also make sure
embeddedartists 8:fe3cb3fbb64e 234 * that the sector sizes are the same (i.e. 64KB) for your chip.
embeddedartists 8:fe3cb3fbb64e 235 * If everything is the same then add an exception for your chip.
embeddedartists 8:fe3cb3fbb64e 236 */
embeddedartists 8:fe3cb3fbb64e 237 break;
embeddedartists 0:0fdadbc3d852 238 }
embeddedartists 8:fe3cb3fbb64e 239
embeddedartists 0:0fdadbc3d852 240 debug_if(QSPI_DBG, "INIT: Found %dMB %s\n", memInfo.memSize/0x100000, memInfo.memName);
embeddedartists 0:0fdadbc3d852 241
embeddedartists 0:0fdadbc3d852 242 if (TOC != NULL) {
embeddedartists 0:0fdadbc3d852 243 delete TOC;
embeddedartists 0:0fdadbc3d852 244 }
embeddedartists 0:0fdadbc3d852 245 TOC = (toc_entry_t*)malloc(TOC_SIZE);
embeddedartists 0:0fdadbc3d852 246 if (TOC == NULL) {
embeddedartists 0:0fdadbc3d852 247 debug_if(QSPI_DBG, "INIT: Failed to allocate memory for TOC\n");
embeddedartists 0:0fdadbc3d852 248 spifi = NULL;
embeddedartists 0:0fdadbc3d852 249 return FS_ERR_MALLOC;
embeddedartists 0:0fdadbc3d852 250 }
embeddedartists 0:0fdadbc3d852 251 }
embeddedartists 0:0fdadbc3d852 252 if (activeTOC == -1)
embeddedartists 0:0fdadbc3d852 253 {
embeddedartists 0:0fdadbc3d852 254 return qspifs_readTOC();
embeddedartists 0:0fdadbc3d852 255 }
embeddedartists 0:0fdadbc3d852 256 return FS_OK;
embeddedartists 0:0fdadbc3d852 257 }
embeddedartists 0:0fdadbc3d852 258
embeddedartists 0:0fdadbc3d852 259 /******************************************************************************
embeddedartists 0:0fdadbc3d852 260 *
embeddedartists 0:0fdadbc3d852 261 * Description:
embeddedartists 0:0fdadbc3d852 262 * Converts the return value from one of the spifi_init(), spifi_program()
embeddedartists 0:0fdadbc3d852 263 * or spifi_erase() calls into a FS_* error code to simplify it for the
embeddedartists 0:0fdadbc3d852 264 * fs_qspi API user.
embeddedartists 0:0fdadbc3d852 265 * This function also attempts to detect the verification failure error.
embeddedartists 0:0fdadbc3d852 266 * When a verification error occurs the spifi_* functions returns the
embeddedartists 0:0fdadbc3d852 267 * conflicting address and not an error code. As this can be any address
embeddedartists 0:0fdadbc3d852 268 * it is difficult to test but this function converts it into the
embeddedartists 0:0fdadbc3d852 269 * FS_ERR_SPIFI_VERIFICATION error code which can be tested against.
embeddedartists 0:0fdadbc3d852 270 *
embeddedartists 0:0fdadbc3d852 271 * Params:
embeddedartists 0:0fdadbc3d852 272 * [in] rc - The return code from any of the spifi_* functions
embeddedartists 0:0fdadbc3d852 273 *
embeddedartists 0:0fdadbc3d852 274 * Returns:
embeddedartists 0:0fdadbc3d852 275 * FS_OK or one of the FS_ERR_* error codes
embeddedartists 0:0fdadbc3d852 276 *
embeddedartists 0:0fdadbc3d852 277 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 278 static fresult qspifs_translateSpifiError(int rc)
embeddedartists 0:0fdadbc3d852 279 {
embeddedartists 0:0fdadbc3d852 280 fresult res;
embeddedartists 0:0fdadbc3d852 281 if (rc == 0)
embeddedartists 0:0fdadbc3d852 282 {
embeddedartists 0:0fdadbc3d852 283 res = FS_OK;
embeddedartists 0:0fdadbc3d852 284 }
embeddedartists 0:0fdadbc3d852 285 else if ((rc >= FS_ERR_SPIFI_INTERNAL_ERROR) && (rc <= FS_ERR_SPIFI_ERASE_CONFLICT))
embeddedartists 0:0fdadbc3d852 286 {
embeddedartists 0:0fdadbc3d852 287 // This is a known error code
embeddedartists 0:0fdadbc3d852 288 res = (fresult)rc;
embeddedartists 0:0fdadbc3d852 289 }
embeddedartists 0:0fdadbc3d852 290 else if (opers.options & (S_VERIFY_PROG | S_VERIFY_ERASE))
embeddedartists 0:0fdadbc3d852 291 {
embeddedartists 0:0fdadbc3d852 292 // As verification was selected and rc is not in the list of known
embeddedartists 0:0fdadbc3d852 293 // codes this falls into this category in the User's Manual:
embeddedartists 0:0fdadbc3d852 294 //
embeddedartists 0:0fdadbc3d852 295 // "Other non-zero values can occur if options selects verification.
embeddedartists 0:0fdadbc3d852 296 // They will be the address in the SPIFI memory area at which the
embeddedartists 0:0fdadbc3d852 297 // first discrepancy was found."
embeddedartists 0:0fdadbc3d852 298 res = FS_ERR_SPIFI_VERIFICATION;
embeddedartists 0:0fdadbc3d852 299 }
embeddedartists 0:0fdadbc3d852 300 else
embeddedartists 0:0fdadbc3d852 301 {
embeddedartists 0:0fdadbc3d852 302 // Should never happen :-) as all listed error codes are covered but
embeddedartists 0:0fdadbc3d852 303 // to be on the safe side and not interpret this as a success, a generic
embeddedartists 0:0fdadbc3d852 304 // error is set.
embeddedartists 0:0fdadbc3d852 305 res = FS_ERR_SPIFI;
embeddedartists 0:0fdadbc3d852 306 }
embeddedartists 0:0fdadbc3d852 307 return res;
embeddedartists 0:0fdadbc3d852 308 }
embeddedartists 0:0fdadbc3d852 309
embeddedartists 0:0fdadbc3d852 310 /******************************************************************************
embeddedartists 0:0fdadbc3d852 311 *
embeddedartists 0:0fdadbc3d852 312 * Description:
embeddedartists 0:0fdadbc3d852 313 * Reads the table of contents (TOC). The TOC is stored in the last erase
embeddedartists 0:0fdadbc3d852 314 * block on the QSPI flash. As the QSPI flash is not exactly RW (might
embeddedartists 0:0fdadbc3d852 315 * require erasing before writing) the TOC is relocated inside the erase
embeddedartists 0:0fdadbc3d852 316 * block everytime it is saved (see saveTOC()). The currently valid TOC
embeddedartists 0:0fdadbc3d852 317 * is allways the last one stored.
embeddedartists 0:0fdadbc3d852 318 *
embeddedartists 0:0fdadbc3d852 319 * Params:
embeddedartists 0:0fdadbc3d852 320 * None
embeddedartists 0:0fdadbc3d852 321 *
embeddedartists 0:0fdadbc3d852 322 * Returns:
embeddedartists 0:0fdadbc3d852 323 * FS_OK or one of the FS_ERR_* error codes
embeddedartists 0:0fdadbc3d852 324 *
embeddedartists 0:0fdadbc3d852 325 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 326 static fresult qspifs_readTOC(void)
embeddedartists 0:0fdadbc3d852 327 {
embeddedartists 0:0fdadbc3d852 328 int i, j;
embeddedartists 0:0fdadbc3d852 329 toc_entry_t* p;
embeddedartists 0:0fdadbc3d852 330 uint8_t invalid = 0;
embeddedartists 0:0fdadbc3d852 331 int lastValid = -1;
embeddedartists 0:0fdadbc3d852 332
embeddedartists 0:0fdadbc3d852 333 // Search for the first unused TOC, keeping track of the valid
embeddedartists 0:0fdadbc3d852 334 // ones as we go.
embeddedartists 0:0fdadbc3d852 335 for (i = 0; (i < NUM_TOCS) && !invalid; i++)
embeddedartists 0:0fdadbc3d852 336 {
embeddedartists 0:0fdadbc3d852 337 p = (toc_entry_t*)(TOC_BLOCK_ADDR + i*TOC_SIZE);
embeddedartists 0:0fdadbc3d852 338 for (j = 0; j < NUM_BLOCKS; j++)
embeddedartists 0:0fdadbc3d852 339 {
embeddedartists 0:0fdadbc3d852 340 if (!VALID_TOC_ENTRY(*p) || !MANDATORY_BITS_SET(*p))
embeddedartists 0:0fdadbc3d852 341 {
embeddedartists 0:0fdadbc3d852 342 // invalid TOC entry, stop looking
embeddedartists 0:0fdadbc3d852 343 invalid = 1;
embeddedartists 0:0fdadbc3d852 344 break;
embeddedartists 0:0fdadbc3d852 345 }
embeddedartists 0:0fdadbc3d852 346 p++;
embeddedartists 0:0fdadbc3d852 347 }
embeddedartists 0:0fdadbc3d852 348
embeddedartists 0:0fdadbc3d852 349 if (!invalid)
embeddedartists 0:0fdadbc3d852 350 {
embeddedartists 0:0fdadbc3d852 351 // this TOC was ok, but perhaps there is a newer one?
embeddedartists 0:0fdadbc3d852 352 lastValid = i;
embeddedartists 0:0fdadbc3d852 353 }
embeddedartists 0:0fdadbc3d852 354 }
embeddedartists 0:0fdadbc3d852 355
embeddedartists 0:0fdadbc3d852 356 if (lastValid == -1)
embeddedartists 0:0fdadbc3d852 357 {
embeddedartists 0:0fdadbc3d852 358 // no valid TOCs on the flash
embeddedartists 0:0fdadbc3d852 359 return FS_ERR_NOT_FORMATTED;
embeddedartists 0:0fdadbc3d852 360 }
embeddedartists 0:0fdadbc3d852 361 else
embeddedartists 0:0fdadbc3d852 362 {
embeddedartists 0:0fdadbc3d852 363 // previous entry was ok so use that
embeddedartists 0:0fdadbc3d852 364 activeTOC = lastValid;
embeddedartists 0:0fdadbc3d852 365 p = (toc_entry_t*)(TOC_BLOCK_ADDR + activeTOC*TOC_SIZE);
embeddedartists 0:0fdadbc3d852 366 memcpy(TOC, p, TOC_SIZE);
embeddedartists 0:0fdadbc3d852 367 return FS_OK;
embeddedartists 0:0fdadbc3d852 368 }
embeddedartists 0:0fdadbc3d852 369 }
embeddedartists 0:0fdadbc3d852 370
embeddedartists 0:0fdadbc3d852 371 /******************************************************************************
embeddedartists 0:0fdadbc3d852 372 *
embeddedartists 0:0fdadbc3d852 373 * Description:
embeddedartists 0:0fdadbc3d852 374 * Saves the table of contents (TOC). The TOC is stored in the last erase
embeddedartists 0:0fdadbc3d852 375 * block on the QSPI flash. As the QSPI flash is not exactly RW (might
embeddedartists 0:0fdadbc3d852 376 * require erasing before writing) the TOC is first compared with what is
embeddedartists 0:0fdadbc3d852 377 * stored in the QSPI flash and if there are no changes or all changes
embeddedartists 0:0fdadbc3d852 378 * only require bit changes 1->0 then the current TOC can be overwritten.
embeddedartists 0:0fdadbc3d852 379 * If bit value changes 0->1 are required then the current stored TOC
embeddedartists 0:0fdadbc3d852 380 * cannot be overwritten and the new TOC is instead stored in the next
embeddedartists 0:0fdadbc3d852 381 * available space. If the entire last block is filled then it is erased
embeddedartists 0:0fdadbc3d852 382 * and the new TOC is placed at the start of it.
embeddedartists 0:0fdadbc3d852 383 *
embeddedartists 0:0fdadbc3d852 384 * Params:
embeddedartists 0:0fdadbc3d852 385 * None
embeddedartists 0:0fdadbc3d852 386 *
embeddedartists 0:0fdadbc3d852 387 * Returns:
embeddedartists 0:0fdadbc3d852 388 * FS_OK or one of the FS_ERR_* error codes
embeddedartists 0:0fdadbc3d852 389 *
embeddedartists 0:0fdadbc3d852 390 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 391 static fresult qspifs_saveTOC(void)
embeddedartists 0:0fdadbc3d852 392 {
embeddedartists 0:0fdadbc3d852 393 int i, rc = 0;
embeddedartists 0:0fdadbc3d852 394 uint32_t* pSrc;
embeddedartists 0:0fdadbc3d852 395 uint32_t* pDest;
embeddedartists 0:0fdadbc3d852 396 uint32_t tmp;
embeddedartists 0:0fdadbc3d852 397 uint8_t identical = 1;
embeddedartists 0:0fdadbc3d852 398
embeddedartists 0:0fdadbc3d852 399 // active TOC same as the one we want to save?
embeddedartists 0:0fdadbc3d852 400 pSrc = (uint32_t*)TOC;
embeddedartists 0:0fdadbc3d852 401 pDest = (uint32_t*)(TOC_BLOCK_ADDR + activeTOC*TOC_SIZE);
embeddedartists 0:0fdadbc3d852 402 for (i = 0; i < NUM_TOC_ENTRIES; i++)
embeddedartists 0:0fdadbc3d852 403 {
embeddedartists 0:0fdadbc3d852 404 if (*pSrc != *pDest)
embeddedartists 0:0fdadbc3d852 405 {
embeddedartists 0:0fdadbc3d852 406 identical = 0;
embeddedartists 0:0fdadbc3d852 407 tmp = ((*pDest) ^ (*pSrc)) & (*pSrc);
embeddedartists 0:0fdadbc3d852 408 if (tmp > 0)
embeddedartists 0:0fdadbc3d852 409 {
embeddedartists 0:0fdadbc3d852 410 // found a change that contains 0->1 bit modification which
embeddedartists 0:0fdadbc3d852 411 // requires erasing or a new location
embeddedartists 0:0fdadbc3d852 412 activeTOC = (activeTOC + 1)%NUM_TOCS;
embeddedartists 0:0fdadbc3d852 413 if (activeTOC == 0)
embeddedartists 0:0fdadbc3d852 414 {
embeddedartists 0:0fdadbc3d852 415 // no more free TOCs so an erase is needed
embeddedartists 0:0fdadbc3d852 416 #if 0
embeddedartists 0:0fdadbc3d852 417 opers.options &= ~S_CALLER_ERASE;
embeddedartists 0:0fdadbc3d852 418 opers.options |= S_FORCE_ERASE;
embeddedartists 0:0fdadbc3d852 419 #else
embeddedartists 0:0fdadbc3d852 420 opers.dest = (char *) TOC_BLOCK_ADDR;
embeddedartists 0:0fdadbc3d852 421 opers.length = TOC_SIZE * NUM_TOCS;
embeddedartists 0:0fdadbc3d852 422 opers.scratch = NULL;
embeddedartists 0:0fdadbc3d852 423 opers.protect = 0;
embeddedartists 0:0fdadbc3d852 424 opers.options = S_NO_VERIFY;
embeddedartists 8:fe3cb3fbb64e 425 rc = spifi->spifi_erase(obj, &opers);
embeddedartists 0:0fdadbc3d852 426 if (rc) {
embeddedartists 0:0fdadbc3d852 427 return qspifs_translateSpifiError(rc);
embeddedartists 0:0fdadbc3d852 428 }
embeddedartists 0:0fdadbc3d852 429 #endif
embeddedartists 0:0fdadbc3d852 430 }
embeddedartists 0:0fdadbc3d852 431 break;
embeddedartists 0:0fdadbc3d852 432 }
embeddedartists 0:0fdadbc3d852 433 }
embeddedartists 0:0fdadbc3d852 434 pSrc++;
embeddedartists 0:0fdadbc3d852 435 pDest++;
embeddedartists 0:0fdadbc3d852 436 }
embeddedartists 0:0fdadbc3d852 437
embeddedartists 0:0fdadbc3d852 438 if (!identical)
embeddedartists 0:0fdadbc3d852 439 {
embeddedartists 0:0fdadbc3d852 440 opers.length = FS_MIN(TOC_SIZE, PROG_SIZE);
embeddedartists 0:0fdadbc3d852 441 opers.scratch = NULL;
embeddedartists 0:0fdadbc3d852 442 opers.protect = 0;
embeddedartists 0:0fdadbc3d852 443 opers.options = S_VERIFY_PROG | S_CALLER_ERASE;
embeddedartists 0:0fdadbc3d852 444 for (int i = 0; i < (TOC_SIZE / PROG_SIZE); i++)
embeddedartists 0:0fdadbc3d852 445 {
embeddedartists 0:0fdadbc3d852 446 opers.dest = (char *)(TOC_BLOCK_ADDR + activeTOC*TOC_SIZE + i*PROG_SIZE);
embeddedartists 8:fe3cb3fbb64e 447 rc = spifi->spifi_program(obj, ((char*)TOC)+i*PROG_SIZE, &opers);
embeddedartists 0:0fdadbc3d852 448 if (rc)
embeddedartists 0:0fdadbc3d852 449 {
embeddedartists 0:0fdadbc3d852 450 break;
embeddedartists 0:0fdadbc3d852 451 }
embeddedartists 0:0fdadbc3d852 452 }
embeddedartists 0:0fdadbc3d852 453 return qspifs_translateSpifiError(rc);
embeddedartists 0:0fdadbc3d852 454 }
embeddedartists 0:0fdadbc3d852 455 return FS_OK;
embeddedartists 0:0fdadbc3d852 456 }
embeddedartists 0:0fdadbc3d852 457
embeddedartists 0:0fdadbc3d852 458 /******************************************************************************
embeddedartists 0:0fdadbc3d852 459 *
embeddedartists 0:0fdadbc3d852 460 * Description:
embeddedartists 0:0fdadbc3d852 461 * Searches the file system for a file with the specified name and
embeddedartists 0:0fdadbc3d852 462 * (if found) returns the file's position in the TOC.
embeddedartists 0:0fdadbc3d852 463 *
embeddedartists 0:0fdadbc3d852 464 * Note that the content of fh is only valid if FS_OK is returned.
embeddedartists 0:0fdadbc3d852 465 *
embeddedartists 0:0fdadbc3d852 466 * Params:
embeddedartists 0:0fdadbc3d852 467 * [in] filename - The name of the file to find
embeddedartists 0:0fdadbc3d852 468 * [out] fh - The handle with the file information
embeddedartists 0:0fdadbc3d852 469 *
embeddedartists 0:0fdadbc3d852 470 * Returns:
embeddedartists 0:0fdadbc3d852 471 * FS_OK or one of the FS_ERR_* error codes
embeddedartists 0:0fdadbc3d852 472 *
embeddedartists 0:0fdadbc3d852 473 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 474 static fresult qspifs_findFile(const char* filename, fileHandle_t* fh)
embeddedartists 0:0fdadbc3d852 475 {
embeddedartists 0:0fdadbc3d852 476 int i;
embeddedartists 0:0fdadbc3d852 477
embeddedartists 0:0fdadbc3d852 478 if (activeTOC == -1)
embeddedartists 0:0fdadbc3d852 479 {
embeddedartists 0:0fdadbc3d852 480 return FS_ERR_NOT_FORMATTED;
embeddedartists 0:0fdadbc3d852 481 }
embeddedartists 0:0fdadbc3d852 482
embeddedartists 0:0fdadbc3d852 483 // Look at all blocks except for the reserved ones
embeddedartists 0:0fdadbc3d852 484 for (i = 0; i < NUM_BLOCKS; i++)
embeddedartists 0:0fdadbc3d852 485 {
embeddedartists 0:0fdadbc3d852 486 if (TOC_IS_FILE(TOC[i]) && !TOC_IS_RESERVED(TOC[i]))
embeddedartists 0:0fdadbc3d852 487 {
embeddedartists 0:0fdadbc3d852 488 // found a file, see if name matches
embeddedartists 0:0fdadbc3d852 489 char* p = (char*)(SPIFI_MEM_BASE + i*ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 490 if (strncmp(filename, p, HEADER_FNAME_LEN) == 0)
embeddedartists 0:0fdadbc3d852 491 {
embeddedartists 0:0fdadbc3d852 492 // found a matching name
embeddedartists 0:0fdadbc3d852 493 fh->tocIdx = i;
embeddedartists 0:0fdadbc3d852 494 fresult res = qspifs_fileSize(fh->tocIdx, &fh->size);
embeddedartists 0:0fdadbc3d852 495 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 496 fh->lastBlock = fh->tocIdx + ((fh->size + HEADER_LEN)/ ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 497 }
embeddedartists 0:0fdadbc3d852 498 return FS_OK;
embeddedartists 0:0fdadbc3d852 499 }
embeddedartists 0:0fdadbc3d852 500 }
embeddedartists 0:0fdadbc3d852 501 }
embeddedartists 0:0fdadbc3d852 502 return FS_ERR_NO_FILE;
embeddedartists 0:0fdadbc3d852 503 }
embeddedartists 0:0fdadbc3d852 504
embeddedartists 0:0fdadbc3d852 505 /******************************************************************************
embeddedartists 0:0fdadbc3d852 506 *
embeddedartists 0:0fdadbc3d852 507 * Description:
embeddedartists 0:0fdadbc3d852 508 * Calculates and returns the file's size.
embeddedartists 0:0fdadbc3d852 509 *
embeddedartists 0:0fdadbc3d852 510 * Note that the content of pSize is only valid if FS_OK is returned.
embeddedartists 0:0fdadbc3d852 511 *
embeddedartists 0:0fdadbc3d852 512 * Params:
embeddedartists 0:0fdadbc3d852 513 * [in] tocIdx - The file's position in the TOC
embeddedartists 0:0fdadbc3d852 514 * [out] pSize - The file's size
embeddedartists 0:0fdadbc3d852 515 *
embeddedartists 0:0fdadbc3d852 516 * Returns:
embeddedartists 0:0fdadbc3d852 517 * FS_OK or one of the FS_ERR_* error codes
embeddedartists 0:0fdadbc3d852 518 *
embeddedartists 0:0fdadbc3d852 519 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 520 static fresult qspifs_fileSize(int tocIdx, uint32_t* pSize)
embeddedartists 0:0fdadbc3d852 521 {
embeddedartists 0:0fdadbc3d852 522 int i;
embeddedartists 0:0fdadbc3d852 523
embeddedartists 0:0fdadbc3d852 524 if (tocIdx < 0 || tocIdx > NUM_BLOCKS || !TOC_IS_FILE(TOC[tocIdx]))
embeddedartists 0:0fdadbc3d852 525 {
embeddedartists 0:0fdadbc3d852 526 return FS_ERR_NO_FILE;
embeddedartists 0:0fdadbc3d852 527 }
embeddedartists 0:0fdadbc3d852 528
embeddedartists 0:0fdadbc3d852 529 *pSize = 0;
embeddedartists 0:0fdadbc3d852 530
embeddedartists 0:0fdadbc3d852 531 // A file is always stored in sequential blocks so start with the files
embeddedartists 0:0fdadbc3d852 532 // first block and as long as it is full continue sum up the occupied
embeddedartists 0:0fdadbc3d852 533 // block sizes. As soon as a non-full block is found that must be the
embeddedartists 0:0fdadbc3d852 534 // file's last block.
embeddedartists 0:0fdadbc3d852 535 for (i = tocIdx; i < NUM_BLOCKS; i++)
embeddedartists 0:0fdadbc3d852 536 {
embeddedartists 0:0fdadbc3d852 537 *pSize += FILESIZE(TOC[i]);
embeddedartists 0:0fdadbc3d852 538 if (FILESIZE(TOC[i]) < ERASE_SIZE)
embeddedartists 0:0fdadbc3d852 539 {
embeddedartists 0:0fdadbc3d852 540 // last block in chain
embeddedartists 0:0fdadbc3d852 541 break;
embeddedartists 0:0fdadbc3d852 542 }
embeddedartists 0:0fdadbc3d852 543 }
embeddedartists 0:0fdadbc3d852 544
embeddedartists 0:0fdadbc3d852 545 // Remove the filename header from the file's size
embeddedartists 0:0fdadbc3d852 546 *pSize -= HEADER_LEN;
embeddedartists 0:0fdadbc3d852 547
embeddedartists 0:0fdadbc3d852 548 return FS_OK;
embeddedartists 0:0fdadbc3d852 549 }
embeddedartists 0:0fdadbc3d852 550
embeddedartists 0:0fdadbc3d852 551 /******************************************************************************
embeddedartists 0:0fdadbc3d852 552 *
embeddedartists 0:0fdadbc3d852 553 * Description:
embeddedartists 0:0fdadbc3d852 554 * Erases everything in one block on the QSPI flash.
embeddedartists 0:0fdadbc3d852 555 *
embeddedartists 0:0fdadbc3d852 556 * Params:
embeddedartists 0:0fdadbc3d852 557 * [in] block - The block's number
embeddedartists 0:0fdadbc3d852 558 *
embeddedartists 0:0fdadbc3d852 559 * Returns:
embeddedartists 0:0fdadbc3d852 560 * FS_OK or one of the FS_ERR_* error codes
embeddedartists 0:0fdadbc3d852 561 *
embeddedartists 0:0fdadbc3d852 562 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 563 static fresult qspifs_eraseBlock(int block)
embeddedartists 0:0fdadbc3d852 564 {
embeddedartists 0:0fdadbc3d852 565 opers.dest = (char *)(block * ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 566 opers.length = ERASE_SIZE;
embeddedartists 0:0fdadbc3d852 567 opers.scratch = NULL;
embeddedartists 0:0fdadbc3d852 568 opers.protect = 0;
embeddedartists 0:0fdadbc3d852 569 opers.options = S_NO_VERIFY;
embeddedartists 8:fe3cb3fbb64e 570 return qspifs_translateSpifiError(spifi->spifi_erase (obj, &opers));
embeddedartists 0:0fdadbc3d852 571 }
embeddedartists 0:0fdadbc3d852 572
embeddedartists 0:0fdadbc3d852 573 /******************************************************************************
embeddedartists 0:0fdadbc3d852 574 *
embeddedartists 0:0fdadbc3d852 575 * Description:
embeddedartists 0:0fdadbc3d852 576 * Creates a new file if there is enough space for it on the file system.
embeddedartists 0:0fdadbc3d852 577 * The TOC is searched for a unused sequence of blocks of at least the
embeddedartists 0:0fdadbc3d852 578 * needed size. That block is marked as used and the file's name is stored
embeddedartists 0:0fdadbc3d852 579 * in the first bytes of the file's first block.
embeddedartists 0:0fdadbc3d852 580 *
embeddedartists 0:0fdadbc3d852 581 * Note: The filename will not be tested for uniqueness.
embeddedartists 0:0fdadbc3d852 582 * Note: The value of pTocIdx will only be valid if FS_OK is returned.
embeddedartists 0:0fdadbc3d852 583 *
embeddedartists 0:0fdadbc3d852 584 * Params:
embeddedartists 0:0fdadbc3d852 585 * [in] filename - The name of the new file
embeddedartists 0:0fdadbc3d852 586 * [in] neededBlocks - The number of blocks (in sequence) to allocate
embeddedartists 0:0fdadbc3d852 587 * [out] pTocIdx - The new file's position in the TOC
embeddedartists 0:0fdadbc3d852 588 *
embeddedartists 0:0fdadbc3d852 589 * Returns:
embeddedartists 0:0fdadbc3d852 590 * FS_OK or one of the FS_ERR_* error codes
embeddedartists 0:0fdadbc3d852 591 *
embeddedartists 0:0fdadbc3d852 592 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 593 static fresult qspifs_allocateFile(const char* filename, int neededBlocks, int* pTocIdx)
embeddedartists 0:0fdadbc3d852 594 {
embeddedartists 0:0fdadbc3d852 595 int i, rc;
embeddedartists 0:0fdadbc3d852 596
embeddedartists 0:0fdadbc3d852 597 if (activeTOC == -1)
embeddedartists 0:0fdadbc3d852 598 {
embeddedartists 0:0fdadbc3d852 599 return FS_ERR_NOT_FORMATTED;
embeddedartists 0:0fdadbc3d852 600 }
embeddedartists 0:0fdadbc3d852 601
embeddedartists 0:0fdadbc3d852 602 // Look at all blocks except for the reserved ones
embeddedartists 0:0fdadbc3d852 603 for (i = 0; i < NUM_BLOCKS; i++)
embeddedartists 0:0fdadbc3d852 604 {
embeddedartists 0:0fdadbc3d852 605 //TODO: Improve search to use gaps to avoid having to move files
embeddedartists 0:0fdadbc3d852 606 // that are written to
embeddedartists 0:0fdadbc3d852 607 if (!USED_TOC_ENTRY(TOC[i]) && !TOC_IS_RESERVED(TOC[i]))
embeddedartists 0:0fdadbc3d852 608 {
embeddedartists 0:0fdadbc3d852 609 int j;
embeddedartists 0:0fdadbc3d852 610 for (j = 1; j < neededBlocks; j++)
embeddedartists 0:0fdadbc3d852 611 {
embeddedartists 0:0fdadbc3d852 612 if (USED_TOC_ENTRY(TOC[i+j]) || TOC_IS_RESERVED(TOC[i+j]))
embeddedartists 0:0fdadbc3d852 613 {
embeddedartists 0:0fdadbc3d852 614 // not enough free blocks in sequence, skip past these
embeddedartists 0:0fdadbc3d852 615 // tested entries and continue searching
embeddedartists 0:0fdadbc3d852 616 i += j;
embeddedartists 0:0fdadbc3d852 617 break;
embeddedartists 0:0fdadbc3d852 618 }
embeddedartists 0:0fdadbc3d852 619 }
embeddedartists 0:0fdadbc3d852 620
embeddedartists 0:0fdadbc3d852 621 if (j == neededBlocks)
embeddedartists 0:0fdadbc3d852 622 {
embeddedartists 0:0fdadbc3d852 623 const char* pSrc = filename;
embeddedartists 0:0fdadbc3d852 624 if (IS_ADDR_IN_SPIFI(filename))
embeddedartists 0:0fdadbc3d852 625 {
embeddedartists 0:0fdadbc3d852 626 // The SPIFI ROM driver cannot write data from SPIFI into
embeddedartists 0:0fdadbc3d852 627 // SPIFI (i.e. cannot read and write at the same time).
embeddedartists 0:0fdadbc3d852 628 // The workaround is to copy the source data into a buffer
embeddedartists 0:0fdadbc3d852 629 // in local memory and use that as source for the write
embeddedartists 0:0fdadbc3d852 630 // instead.
embeddedartists 0:0fdadbc3d852 631 memcpy(addr_conflict_buff, filename, strlen(filename)+1);
embeddedartists 0:0fdadbc3d852 632 pSrc = addr_conflict_buff;
embeddedartists 0:0fdadbc3d852 633 }
embeddedartists 0:0fdadbc3d852 634
embeddedartists 0:0fdadbc3d852 635 // Erase the new file's first block and store the filename at the
embeddedartists 0:0fdadbc3d852 636 // start of it
embeddedartists 0:0fdadbc3d852 637 opers.length = strlen(pSrc)+1;
embeddedartists 0:0fdadbc3d852 638 opers.scratch = NULL;
embeddedartists 0:0fdadbc3d852 639 opers.protect = 0;
embeddedartists 0:0fdadbc3d852 640 opers.options = S_VERIFY_PROG | S_FORCE_ERASE;// S_CALLER_ERASE;
embeddedartists 0:0fdadbc3d852 641 opers.dest = (char *)(i*ERASE_SIZE);
embeddedartists 8:fe3cb3fbb64e 642 rc = spifi->spifi_program(obj, (char*)pSrc, &opers);
embeddedartists 0:0fdadbc3d852 643 if (rc) {
embeddedartists 0:0fdadbc3d852 644 return qspifs_translateSpifiError(rc);
embeddedartists 0:0fdadbc3d852 645 }
embeddedartists 0:0fdadbc3d852 646
embeddedartists 0:0fdadbc3d852 647 TOC[i] &= ~(TOC_VALID_MASK | TOC_USED_MASK | TOC_FILE_MASK | TOC_FSIZE_MASK);
embeddedartists 0:0fdadbc3d852 648 TOC[i] |= HEADER_LEN;
embeddedartists 0:0fdadbc3d852 649
embeddedartists 0:0fdadbc3d852 650 *pTocIdx = i;
embeddedartists 0:0fdadbc3d852 651 return FS_OK;
embeddedartists 0:0fdadbc3d852 652 }
embeddedartists 0:0fdadbc3d852 653 }
embeddedartists 0:0fdadbc3d852 654 }
embeddedartists 0:0fdadbc3d852 655 return FS_ERR_DISK_FULL;
embeddedartists 0:0fdadbc3d852 656 }
embeddedartists 0:0fdadbc3d852 657
embeddedartists 0:0fdadbc3d852 658 /******************************************************************************
embeddedartists 0:0fdadbc3d852 659 *
embeddedartists 0:0fdadbc3d852 660 * Description:
embeddedartists 0:0fdadbc3d852 661 * Deletes the specified file by marking all its blocks as unused in
embeddedartists 0:0fdadbc3d852 662 * the TOC.
embeddedartists 0:0fdadbc3d852 663 *
embeddedartists 0:0fdadbc3d852 664 * Note: The deleted blocks are not erased here - that is done when they
embeddedartists 0:0fdadbc3d852 665 * are allocated the next time.
embeddedartists 0:0fdadbc3d852 666 *
embeddedartists 0:0fdadbc3d852 667 * Params:
embeddedartists 0:0fdadbc3d852 668 * [in] fh - The file handle with information about what to delete
embeddedartists 0:0fdadbc3d852 669 *
embeddedartists 0:0fdadbc3d852 670 * Returns:
embeddedartists 0:0fdadbc3d852 671 * None
embeddedartists 0:0fdadbc3d852 672 *
embeddedartists 0:0fdadbc3d852 673 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 674 static void qspifs_deleteFile(fileHandle_t* fh)
embeddedartists 0:0fdadbc3d852 675 {
embeddedartists 0:0fdadbc3d852 676 int i;
embeddedartists 0:0fdadbc3d852 677
embeddedartists 0:0fdadbc3d852 678 for (i = fh->lastBlock; i >= fh->tocIdx; i--)
embeddedartists 0:0fdadbc3d852 679 {
embeddedartists 0:0fdadbc3d852 680 TOC[i] = ~TOC_VALID_MASK;
embeddedartists 0:0fdadbc3d852 681 }
embeddedartists 0:0fdadbc3d852 682 }
embeddedartists 0:0fdadbc3d852 683
embeddedartists 0:0fdadbc3d852 684 /******************************************************************************
embeddedartists 0:0fdadbc3d852 685 *
embeddedartists 0:0fdadbc3d852 686 * Description:
embeddedartists 0:0fdadbc3d852 687 * Ensures that the specified file can grow to the wanted size.
embeddedartists 0:0fdadbc3d852 688 * If the file size will increase enough to need one or more new blocks
embeddedartists 0:0fdadbc3d852 689 * and there isn't enough space then an attempt is made to move the
embeddedartists 0:0fdadbc3d852 690 * current file to a large enough space somewhere else.
embeddedartists 0:0fdadbc3d852 691 *
embeddedartists 0:0fdadbc3d852 692 * If there are more free block(s) at the end of the file then it is not
embeddedartists 0:0fdadbc3d852 693 * moved and instead those blocks are marked as used.
embeddedartists 0:0fdadbc3d852 694 *
embeddedartists 0:0fdadbc3d852 695 * Note: The filename will not be tested for uniqueness.
embeddedartists 0:0fdadbc3d852 696 * Note: The value of pTocIdx will only be valid if FS_OK is returned.
embeddedartists 0:0fdadbc3d852 697 *
embeddedartists 0:0fdadbc3d852 698 * Params:
embeddedartists 0:0fdadbc3d852 699 * [in/out] fh - The current file handle, might be updated after a move
embeddedartists 0:0fdadbc3d852 700 * [in] size - The wanted new size
embeddedartists 0:0fdadbc3d852 701 *
embeddedartists 0:0fdadbc3d852 702 * Returns:
embeddedartists 0:0fdadbc3d852 703 * FS_OK or one of the FS_ERR_* error codes
embeddedartists 0:0fdadbc3d852 704 *
embeddedartists 0:0fdadbc3d852 705 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 706 static fresult qspifs_allocateSpace(fileHandle_t* fh, uint32_t size)
embeddedartists 0:0fdadbc3d852 707 {
embeddedartists 0:0fdadbc3d852 708 uint16_t oldNumBlocks = (fh->size + HEADER_LEN) / ERASE_SIZE;
embeddedartists 0:0fdadbc3d852 709 uint16_t newNumBlocks = (fh->size + HEADER_LEN + size) / ERASE_SIZE;
embeddedartists 0:0fdadbc3d852 710 uint16_t numNeeded = newNumBlocks - oldNumBlocks;
embeddedartists 0:0fdadbc3d852 711 fresult res = FS_OK;
embeddedartists 0:0fdadbc3d852 712
embeddedartists 0:0fdadbc3d852 713 if (numNeeded > 0)
embeddedartists 0:0fdadbc3d852 714 {
embeddedartists 0:0fdadbc3d852 715 uint16_t i;
embeddedartists 0:0fdadbc3d852 716 for (i = 0; i < numNeeded; i++)
embeddedartists 0:0fdadbc3d852 717 {
embeddedartists 0:0fdadbc3d852 718 if (USED_TOC_ENTRY(TOC[fh->tocIdx + oldNumBlocks + 1 + i]) ||
embeddedartists 0:0fdadbc3d852 719 TOC_IS_RESERVED(TOC[fh->tocIdx + oldNumBlocks + 1 + i]))
embeddedartists 0:0fdadbc3d852 720 {
embeddedartists 0:0fdadbc3d852 721 fileHandle_t fhNew;
embeddedartists 0:0fdadbc3d852 722
embeddedartists 0:0fdadbc3d852 723 // have to move the chain
embeddedartists 0:0fdadbc3d852 724 char* filename = (char*)(SPIFI_MEM_BASE + fh->tocIdx * ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 725 res = qspifs_allocateFile(filename, newNumBlocks, &(fhNew.tocIdx));
embeddedartists 0:0fdadbc3d852 726 if (res == FS_OK)
embeddedartists 0:0fdadbc3d852 727 {
embeddedartists 0:0fdadbc3d852 728 // copy data
embeddedartists 0:0fdadbc3d852 729 fhNew.lastBlock = fhNew.tocIdx;
embeddedartists 0:0fdadbc3d852 730 fhNew.size = 0;
embeddedartists 0:0fdadbc3d852 731 res = qspifs_write(&fhNew, (uint8_t*)(SPIFI_MEM_BASE + fh->tocIdx * ERASE_SIZE + HEADER_LEN), fh->size);
embeddedartists 0:0fdadbc3d852 732 }
embeddedartists 0:0fdadbc3d852 733 if (res == FS_OK)
embeddedartists 0:0fdadbc3d852 734 {
embeddedartists 0:0fdadbc3d852 735 // remove old entries
embeddedartists 0:0fdadbc3d852 736 qspifs_deleteFile(fh);
embeddedartists 0:0fdadbc3d852 737
embeddedartists 0:0fdadbc3d852 738 // modify old handle to point to new information
embeddedartists 0:0fdadbc3d852 739 fh->lastBlock = fhNew.lastBlock;
embeddedartists 0:0fdadbc3d852 740 fh->size = fhNew.size;
embeddedartists 0:0fdadbc3d852 741 fh->tocIdx = fhNew.tocIdx;
embeddedartists 0:0fdadbc3d852 742 }
embeddedartists 0:0fdadbc3d852 743 if (res != FS_OK)
embeddedartists 0:0fdadbc3d852 744 {
embeddedartists 0:0fdadbc3d852 745 // not possible to relocate the file => abort
embeddedartists 0:0fdadbc3d852 746 return res;
embeddedartists 0:0fdadbc3d852 747 }
embeddedartists 0:0fdadbc3d852 748 break;
embeddedartists 0:0fdadbc3d852 749 }
embeddedartists 0:0fdadbc3d852 750 }
embeddedartists 0:0fdadbc3d852 751
embeddedartists 0:0fdadbc3d852 752 // have space that is unused, so mark as used
embeddedartists 0:0fdadbc3d852 753 for (i = 0; i < numNeeded; i++)
embeddedartists 0:0fdadbc3d852 754 {
embeddedartists 0:0fdadbc3d852 755 int tocIdx = fh->tocIdx + oldNumBlocks + 1 + i;
embeddedartists 0:0fdadbc3d852 756 TOC[tocIdx] &= ~TOC_USED_MASK;
embeddedartists 0:0fdadbc3d852 757 qspifs_eraseBlock(tocIdx);
embeddedartists 0:0fdadbc3d852 758 }
embeddedartists 0:0fdadbc3d852 759 }
embeddedartists 0:0fdadbc3d852 760
embeddedartists 0:0fdadbc3d852 761 return res;
embeddedartists 0:0fdadbc3d852 762 }
embeddedartists 0:0fdadbc3d852 763
embeddedartists 0:0fdadbc3d852 764 /******************************************************************************
embeddedartists 0:0fdadbc3d852 765 *
embeddedartists 0:0fdadbc3d852 766 * Description:
embeddedartists 0:0fdadbc3d852 767 * Adds a file system to the QSPI flash. The entire flash will be erase
embeddedartists 0:0fdadbc3d852 768 * except for the minReservedBytes first bytes. That reserved area (rounded
embeddedartists 0:0fdadbc3d852 769 * up to the closest even multiple of the erase block size) can be used
embeddedartists 0:0fdadbc3d852 770 * for anything and will never be touched by the file system. That area is
embeddedartists 0:0fdadbc3d852 771 * typically used for executing programs from when the internal flash is
embeddedartists 0:0fdadbc3d852 772 * full.
embeddedartists 0:0fdadbc3d852 773 *
embeddedartists 0:0fdadbc3d852 774 * The file system will have a table of content (TOC) placed at the start
embeddedartists 0:0fdadbc3d852 775 * of the last erase block on the flash.
embeddedartists 0:0fdadbc3d852 776 *
embeddedartists 0:0fdadbc3d852 777 * Params:
embeddedartists 0:0fdadbc3d852 778 * [in] minReservedBytes - The number of bytes to ignore at the start of
embeddedartists 0:0fdadbc3d852 779 * the flash.
embeddedartists 0:0fdadbc3d852 780 *
embeddedartists 0:0fdadbc3d852 781 * Returns:
embeddedartists 0:0fdadbc3d852 782 * FS_OK on success or one of the FS_ERR_* on failure
embeddedartists 0:0fdadbc3d852 783 *
embeddedartists 0:0fdadbc3d852 784 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 785 static fresult qspifs_format(unsigned int minReservedBytes)
embeddedartists 0:0fdadbc3d852 786 {
embeddedartists 0:0fdadbc3d852 787 int i, rc;
embeddedartists 0:0fdadbc3d852 788 int numReserved = 0;
embeddedartists 0:0fdadbc3d852 789
embeddedartists 0:0fdadbc3d852 790 if (minReservedBytes > 0) {
embeddedartists 0:0fdadbc3d852 791 numReserved = (minReservedBytes + ERASE_SIZE - 1) / ERASE_SIZE;
embeddedartists 0:0fdadbc3d852 792 if (numReserved >= (NUM_BLOCKS - 2)) {
embeddedartists 0:0fdadbc3d852 793 // Too many of the erase blocks are reserved - not even room for one file
embeddedartists 0:0fdadbc3d852 794 return FS_ERR_INVALID_PARAM;
embeddedartists 0:0fdadbc3d852 795 }
embeddedartists 0:0fdadbc3d852 796 }
embeddedartists 0:0fdadbc3d852 797
embeddedartists 0:0fdadbc3d852 798 #if 0 // works but is really slow
embeddedartists 0:0fdadbc3d852 799 // Erase all non-reserved blocks
embeddedartists 0:0fdadbc3d852 800 for (i = numReserved; i < NUM_BLOCKS; i++) {
embeddedartists 0:0fdadbc3d852 801 opers.dest = (char *) (i * ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 802 opers.length = ERASE_SIZE;
embeddedartists 0:0fdadbc3d852 803 opers.scratch = NULL;
embeddedartists 0:0fdadbc3d852 804 opers.protect = 0;
embeddedartists 0:0fdadbc3d852 805 opers.options = S_NO_VERIFY;
embeddedartists 0:0fdadbc3d852 806 rc = spifi->spifi_erase(&obj, &opers);
embeddedartists 0:0fdadbc3d852 807 if (rc) {
embeddedartists 0:0fdadbc3d852 808 return qspifs_translateSpifiError(rc);
embeddedartists 0:0fdadbc3d852 809 }
embeddedartists 0:0fdadbc3d852 810 }
embeddedartists 0:0fdadbc3d852 811 #else
embeddedartists 0:0fdadbc3d852 812 // Erase all non-reserved blocks
embeddedartists 0:0fdadbc3d852 813 opers.dest = (char *) (numReserved * ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 814 opers.length = MEM_SIZE - (numReserved * ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 815 opers.scratch = NULL;
embeddedartists 0:0fdadbc3d852 816 opers.protect = 0;
embeddedartists 0:0fdadbc3d852 817 opers.options = S_NO_VERIFY;
embeddedartists 8:fe3cb3fbb64e 818 rc = spifi->spifi_erase(obj, &opers);
embeddedartists 0:0fdadbc3d852 819 if (rc) {
embeddedartists 0:0fdadbc3d852 820 return qspifs_translateSpifiError(rc);
embeddedartists 0:0fdadbc3d852 821 }
embeddedartists 0:0fdadbc3d852 822 #endif
embeddedartists 0:0fdadbc3d852 823
embeddedartists 0:0fdadbc3d852 824 // Create the TOC, mark requested blocks as reserved and mark the TOC's
embeddedartists 0:0fdadbc3d852 825 // block(s) as reserved as well.
embeddedartists 0:0fdadbc3d852 826 for (i = 0; i < numReserved; i++) {
embeddedartists 0:0fdadbc3d852 827 TOC[i] = ~(TOC_VALID_MASK | TOC_RESERVED_MASK);
embeddedartists 0:0fdadbc3d852 828 }
embeddedartists 0:0fdadbc3d852 829 for (; i < (NUM_BLOCKS - NUM_TOC_BLOCKS); i++) {
embeddedartists 0:0fdadbc3d852 830 TOC[i] = ~TOC_VALID_MASK;
embeddedartists 0:0fdadbc3d852 831 }
embeddedartists 0:0fdadbc3d852 832 for (; i < NUM_BLOCKS; i++) {
embeddedartists 0:0fdadbc3d852 833 TOC[i] = ~(TOC_VALID_MASK | TOC_RESERVED_MASK);
embeddedartists 0:0fdadbc3d852 834 }
embeddedartists 0:0fdadbc3d852 835
embeddedartists 0:0fdadbc3d852 836 // Save the TOC in the last block
embeddedartists 0:0fdadbc3d852 837 activeTOC = 0;
embeddedartists 0:0fdadbc3d852 838 fresult res = qspifs_saveTOC();
embeddedartists 0:0fdadbc3d852 839 if (res != FS_OK) {
embeddedartists 0:0fdadbc3d852 840 activeTOC = -1;
embeddedartists 0:0fdadbc3d852 841 return res;
embeddedartists 0:0fdadbc3d852 842 }
embeddedartists 0:0fdadbc3d852 843 // opers.dest = (char *) TOC_BLOCK_ADDR;
embeddedartists 0:0fdadbc3d852 844 // opers.length = TOC_SIZE;
embeddedartists 0:0fdadbc3d852 845 // opers.scratch = NULL;
embeddedartists 0:0fdadbc3d852 846 // opers.protect = 0;
embeddedartists 0:0fdadbc3d852 847 // opers.options = S_VERIFY_PROG | S_CALLER_ERASE;
embeddedartists 0:0fdadbc3d852 848 // rc = spifi->spifi_program(&obj, (char*) TOC, &opers);
embeddedartists 0:0fdadbc3d852 849 // if (rc) {
embeddedartists 0:0fdadbc3d852 850 // return qspifs_translateSpifiError(rc);
embeddedartists 0:0fdadbc3d852 851 // }
embeddedartists 0:0fdadbc3d852 852
embeddedartists 0:0fdadbc3d852 853 // Read back TOC to be sure it worked
embeddedartists 0:0fdadbc3d852 854 return qspifs_readTOC();
embeddedartists 0:0fdadbc3d852 855 }
embeddedartists 0:0fdadbc3d852 856
embeddedartists 0:0fdadbc3d852 857 /******************************************************************************
embeddedartists 0:0fdadbc3d852 858 *
embeddedartists 0:0fdadbc3d852 859 * Description:
embeddedartists 0:0fdadbc3d852 860 * Deletes all files on the file system. This is a "quick format" that
embeddedartists 0:0fdadbc3d852 861 * leaves all blocks untouched and only modifies the TOC. Any reserved
embeddedartists 0:0fdadbc3d852 862 * blocks are kept reserved.
embeddedartists 0:0fdadbc3d852 863 *
embeddedartists 0:0fdadbc3d852 864 * The purpose of this function is to make it easy to clear the file system
embeddedartists 0:0fdadbc3d852 865 * without going through a time consuming complete erase every time.
embeddedartists 0:0fdadbc3d852 866 *
embeddedartists 0:0fdadbc3d852 867 * Params:
embeddedartists 0:0fdadbc3d852 868 * None
embeddedartists 0:0fdadbc3d852 869 *
embeddedartists 0:0fdadbc3d852 870 * Returns:
embeddedartists 0:0fdadbc3d852 871 * FS_OK on success or one of the FS_ERR_* on failure
embeddedartists 0:0fdadbc3d852 872 *
embeddedartists 0:0fdadbc3d852 873 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 874 // static fresult qspifs_deleteAllFiles(void)
embeddedartists 0:0fdadbc3d852 875 // {
embeddedartists 0:0fdadbc3d852 876 // for (int i = 0; i < NUM_BLOCKS; i++)
embeddedartists 0:0fdadbc3d852 877 // {
embeddedartists 0:0fdadbc3d852 878 // if (!TOC_IS_RESERVED(TOC[i])) {
embeddedartists 0:0fdadbc3d852 879 // TOC[i] = ~TOC_VALID_MASK;
embeddedartists 0:0fdadbc3d852 880 // }
embeddedartists 0:0fdadbc3d852 881 // }
embeddedartists 0:0fdadbc3d852 882 //
embeddedartists 0:0fdadbc3d852 883 // return qspifs_saveTOC();
embeddedartists 0:0fdadbc3d852 884 // }
embeddedartists 0:0fdadbc3d852 885
embeddedartists 0:0fdadbc3d852 886 /******************************************************************************
embeddedartists 0:0fdadbc3d852 887 *
embeddedartists 0:0fdadbc3d852 888 * Description:
embeddedartists 0:0fdadbc3d852 889 * Appends the data to the end of the file.
embeddedartists 0:0fdadbc3d852 890 *
embeddedartists 0:0fdadbc3d852 891 * Params:
embeddedartists 0:0fdadbc3d852 892 * [in] fh - The handle to the file as returned from fs_open_append()
embeddedartists 0:0fdadbc3d852 893 * [in] pData - The data to save
embeddedartists 0:0fdadbc3d852 894 * [in] size - Number of bytes to save
embeddedartists 0:0fdadbc3d852 895 *
embeddedartists 0:0fdadbc3d852 896 * Returns:
embeddedartists 0:0fdadbc3d852 897 * FS_OK on success or one of the FS_ERR_* on failure
embeddedartists 0:0fdadbc3d852 898 *
embeddedartists 0:0fdadbc3d852 899 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 900 static fresult qspifs_write(fileHandle_t* fh, const uint8_t * const pData, uint32_t size)
embeddedartists 0:0fdadbc3d852 901 {
embeddedartists 0:0fdadbc3d852 902 uint32_t left = size;
embeddedartists 0:0fdadbc3d852 903 const uint8_t* pSrc = pData;
embeddedartists 0:0fdadbc3d852 904 int rc, i;
embeddedartists 0:0fdadbc3d852 905 fresult res;
embeddedartists 0:0fdadbc3d852 906 int failed_attempts = 0;
embeddedartists 0:0fdadbc3d852 907
embeddedartists 0:0fdadbc3d852 908 do {
embeddedartists 0:0fdadbc3d852 909 res = qspifs_allocateSpace(fh, size);
embeddedartists 0:0fdadbc3d852 910 if (res != FS_OK) {
embeddedartists 0:0fdadbc3d852 911 break;
embeddedartists 0:0fdadbc3d852 912 }
embeddedartists 0:0fdadbc3d852 913
embeddedartists 0:0fdadbc3d852 914 opers.dest = (char *) (SPIFI_MEM_BASE + fh->tocIdx * ERASE_SIZE
embeddedartists 0:0fdadbc3d852 915 + HEADER_LEN + fh->size);
embeddedartists 0:0fdadbc3d852 916 opers.scratch = NULL;
embeddedartists 0:0fdadbc3d852 917 opers.protect = 0;
embeddedartists 0:0fdadbc3d852 918 opers.options = S_VERIFY_PROG; // | S_FORCE_ERASE;
embeddedartists 0:0fdadbc3d852 919
embeddedartists 0:0fdadbc3d852 920 while ((res == FS_OK) && (left > 0)) {
embeddedartists 0:0fdadbc3d852 921 if (left >= PROG_SIZE) {
embeddedartists 0:0fdadbc3d852 922 opers.length = PROG_SIZE;
embeddedartists 0:0fdadbc3d852 923 } else {
embeddedartists 0:0fdadbc3d852 924 opers.length = left;
embeddedartists 0:0fdadbc3d852 925 }
embeddedartists 0:0fdadbc3d852 926 if (IS_ADDR_IN_SPIFI(pData)) {
embeddedartists 0:0fdadbc3d852 927 memcpy(addr_conflict_buff, pSrc, opers.length);
embeddedartists 8:fe3cb3fbb64e 928 rc = spifi->spifi_program(obj, addr_conflict_buff, &opers);
embeddedartists 0:0fdadbc3d852 929 } else {
embeddedartists 8:fe3cb3fbb64e 930 rc = spifi->spifi_program(obj, (char*) pSrc, &opers);
embeddedartists 0:0fdadbc3d852 931 }
embeddedartists 0:0fdadbc3d852 932 res = qspifs_translateSpifiError(rc);
embeddedartists 0:0fdadbc3d852 933 if ((res == FS_ERR_SPIFI_VERIFICATION)
embeddedartists 0:0fdadbc3d852 934 && (++failed_attempts <= NUM_VERIFICATION_ATTEMPTS)) {
embeddedartists 0:0fdadbc3d852 935 // The verification process failed.
embeddedartists 0:0fdadbc3d852 936 // In all the observed occasions re-running the exact same
embeddedartists 0:0fdadbc3d852 937 // spifi_program command again yielded a 0 as a return value
embeddedartists 0:0fdadbc3d852 938 // the second time.
embeddedartists 0:0fdadbc3d852 939 // The quick'N'dirty fix is to re-run that program instruction
embeddedartists 0:0fdadbc3d852 940 // NUM_VERIFICATION_ATTEMPTS more time(s) when this happens.
embeddedartists 0:0fdadbc3d852 941 res = FS_OK;
embeddedartists 0:0fdadbc3d852 942 continue;
embeddedartists 0:0fdadbc3d852 943 }
embeddedartists 0:0fdadbc3d852 944 if (res != FS_OK) {
embeddedartists 0:0fdadbc3d852 945 // Got an error but cannot exit this function here as parts of the data
embeddedartists 0:0fdadbc3d852 946 // (previous loops?) may have been written so the TOC must be updated.
embeddedartists 0:0fdadbc3d852 947 break;
embeddedartists 0:0fdadbc3d852 948 }
embeddedartists 0:0fdadbc3d852 949 pSrc += opers.length;
embeddedartists 0:0fdadbc3d852 950 opers.dest += opers.length;
embeddedartists 0:0fdadbc3d852 951 left -= opers.length;
embeddedartists 0:0fdadbc3d852 952 failed_attempts = 0;
embeddedartists 0:0fdadbc3d852 953 }
embeddedartists 0:0fdadbc3d852 954
embeddedartists 0:0fdadbc3d852 955 // update file information
embeddedartists 0:0fdadbc3d852 956 fh->size = fh->size + size - left;
embeddedartists 0:0fdadbc3d852 957 fh->lastBlock = fh->tocIdx + ((fh->size + HEADER_LEN)/ ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 958 left = fh->size + HEADER_LEN;
embeddedartists 0:0fdadbc3d852 959 for (i = 0; i <= (fh->lastBlock - fh->tocIdx); i++) {
embeddedartists 0:0fdadbc3d852 960 TOC[fh->tocIdx + i] &= ~TOC_FSIZE_MASK;
embeddedartists 0:0fdadbc3d852 961 TOC[fh->tocIdx + i] |= FS_MIN(ERASE_SIZE, left);
embeddedartists 0:0fdadbc3d852 962 left -= FILESIZE(TOC[fh->tocIdx + i]);
embeddedartists 0:0fdadbc3d852 963 }
embeddedartists 0:0fdadbc3d852 964
embeddedartists 0:0fdadbc3d852 965 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 966 res = qspifs_saveTOC();
embeddedartists 0:0fdadbc3d852 967 } else {
embeddedartists 0:0fdadbc3d852 968 // Want to save the TOC but not overwrite the previous error with
embeddedartists 0:0fdadbc3d852 969 // a possibly successful TOC saving thus making it seem like there
embeddedartists 0:0fdadbc3d852 970 // was no error
embeddedartists 0:0fdadbc3d852 971 qspifs_saveTOC();
embeddedartists 0:0fdadbc3d852 972 }
embeddedartists 0:0fdadbc3d852 973 } while (0);
embeddedartists 0:0fdadbc3d852 974
embeddedartists 0:0fdadbc3d852 975 return res;
embeddedartists 0:0fdadbc3d852 976 }
embeddedartists 0:0fdadbc3d852 977
embeddedartists 0:0fdadbc3d852 978 /******************************************************************************
embeddedartists 0:0fdadbc3d852 979 *
embeddedartists 0:0fdadbc3d852 980 * Description:
embeddedartists 0:0fdadbc3d852 981 * Tests if str starts with prefix. A prefix of NULL or an empty string
embeddedartists 0:0fdadbc3d852 982 * results in a positive result regardless of the content of str.
embeddedartists 0:0fdadbc3d852 983 *
embeddedartists 0:0fdadbc3d852 984 * Params:
embeddedartists 0:0fdadbc3d852 985 * [in] prefix - The prefix to look for
embeddedartists 0:0fdadbc3d852 986 * [in] str - The string to search for prefix
embeddedartists 0:0fdadbc3d852 987 *
embeddedartists 0:0fdadbc3d852 988 * Returns:
embeddedartists 0:0fdadbc3d852 989 * True if the specified string starts with prefix
embeddedartists 0:0fdadbc3d852 990 *
embeddedartists 0:0fdadbc3d852 991 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 992 static bool qspifs_startsWith(const char* prefix, const char* str)
embeddedartists 0:0fdadbc3d852 993 {
embeddedartists 0:0fdadbc3d852 994 const char* pA = prefix;
embeddedartists 0:0fdadbc3d852 995 const char* pB = str;
embeddedartists 0:0fdadbc3d852 996
embeddedartists 0:0fdadbc3d852 997 if (pA == NULL)
embeddedartists 0:0fdadbc3d852 998 {
embeddedartists 0:0fdadbc3d852 999 return true;
embeddedartists 0:0fdadbc3d852 1000 }
embeddedartists 0:0fdadbc3d852 1001 for (; *pA != '\0'; pA++, pB++)
embeddedartists 0:0fdadbc3d852 1002 {
embeddedartists 0:0fdadbc3d852 1003 if (*pB != *pA)
embeddedartists 0:0fdadbc3d852 1004 {
embeddedartists 0:0fdadbc3d852 1005 return false;
embeddedartists 0:0fdadbc3d852 1006 }
embeddedartists 0:0fdadbc3d852 1007 }
embeddedartists 0:0fdadbc3d852 1008
embeddedartists 0:0fdadbc3d852 1009 return true;
embeddedartists 0:0fdadbc3d852 1010 }
embeddedartists 0:0fdadbc3d852 1011
embeddedartists 0:0fdadbc3d852 1012 /******************************************************************************
embeddedartists 0:0fdadbc3d852 1013 * Class Declarations
embeddedartists 0:0fdadbc3d852 1014 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 1015
embeddedartists 0:0fdadbc3d852 1016 class QSPIFileHandle : public FileHandle {
embeddedartists 0:0fdadbc3d852 1017
embeddedartists 0:0fdadbc3d852 1018 public:
embeddedartists 0:0fdadbc3d852 1019 QSPIFileHandle(fileHandle_t* handle, int flags);
embeddedartists 0:0fdadbc3d852 1020
embeddedartists 0:0fdadbc3d852 1021 virtual int close();
embeddedartists 0:0fdadbc3d852 1022
embeddedartists 0:0fdadbc3d852 1023 virtual ssize_t write(const void *buffer, size_t length);
embeddedartists 0:0fdadbc3d852 1024
embeddedartists 0:0fdadbc3d852 1025 virtual ssize_t read(void *buffer, size_t length);
embeddedartists 0:0fdadbc3d852 1026
embeddedartists 0:0fdadbc3d852 1027 virtual int isatty();
embeddedartists 0:0fdadbc3d852 1028
embeddedartists 0:0fdadbc3d852 1029 virtual off_t lseek(off_t position, int whence);
embeddedartists 0:0fdadbc3d852 1030
embeddedartists 0:0fdadbc3d852 1031 virtual int fsync();
embeddedartists 0:0fdadbc3d852 1032
embeddedartists 0:0fdadbc3d852 1033 virtual off_t flen();
embeddedartists 0:0fdadbc3d852 1034
embeddedartists 0:0fdadbc3d852 1035 protected:
embeddedartists 0:0fdadbc3d852 1036
embeddedartists 0:0fdadbc3d852 1037 fileHandle_t fh;
embeddedartists 0:0fdadbc3d852 1038 bool allowReading;
embeddedartists 0:0fdadbc3d852 1039 bool allowWriting;
embeddedartists 0:0fdadbc3d852 1040 uint32_t pos;
embeddedartists 0:0fdadbc3d852 1041 };
embeddedartists 0:0fdadbc3d852 1042
embeddedartists 0:0fdadbc3d852 1043 class QSPIDirHandle : public DirHandle {
embeddedartists 0:0fdadbc3d852 1044
embeddedartists 0:0fdadbc3d852 1045 public:
embeddedartists 0:0fdadbc3d852 1046 static QSPIDirHandle* openDir(const char* dirname);
embeddedartists 0:0fdadbc3d852 1047
embeddedartists 0:0fdadbc3d852 1048 virtual ~QSPIDirHandle();
embeddedartists 0:0fdadbc3d852 1049
embeddedartists 0:0fdadbc3d852 1050 virtual int closedir();
embeddedartists 0:0fdadbc3d852 1051 virtual struct dirent *readdir();
embeddedartists 0:0fdadbc3d852 1052 virtual void rewinddir();
embeddedartists 0:0fdadbc3d852 1053
embeddedartists 0:0fdadbc3d852 1054 private:
embeddedartists 0:0fdadbc3d852 1055 QSPIDirHandle(const char* dirname);
embeddedartists 0:0fdadbc3d852 1056
embeddedartists 0:0fdadbc3d852 1057 int findFileWithPrefix(const char* prefix, int startTOCIdx, int maxTOCIdx) const;
embeddedartists 0:0fdadbc3d852 1058
embeddedartists 0:0fdadbc3d852 1059 protected:
embeddedartists 0:0fdadbc3d852 1060
embeddedartists 0:0fdadbc3d852 1061 char* dirname;
embeddedartists 0:0fdadbc3d852 1062 int nextTocIdx;
embeddedartists 0:0fdadbc3d852 1063
embeddedartists 0:0fdadbc3d852 1064 bool isRoot;
embeddedartists 0:0fdadbc3d852 1065
embeddedartists 0:0fdadbc3d852 1066 struct dirent cur_entry;
embeddedartists 0:0fdadbc3d852 1067 };
embeddedartists 0:0fdadbc3d852 1068
embeddedartists 0:0fdadbc3d852 1069 /******************************************************************************
embeddedartists 0:0fdadbc3d852 1070 * Class Implementations
embeddedartists 0:0fdadbc3d852 1071 *****************************************************************************/
embeddedartists 0:0fdadbc3d852 1072
embeddedartists 0:0fdadbc3d852 1073 QSPIFileHandle::QSPIFileHandle(fileHandle_t* handle, int flags)
embeddedartists 0:0fdadbc3d852 1074 {
embeddedartists 0:0fdadbc3d852 1075 fh = *handle;
embeddedartists 0:0fdadbc3d852 1076 int accmode = (flags & O_ACCMODE);
embeddedartists 0:0fdadbc3d852 1077 allowReading = (accmode == O_RDONLY) || (accmode == O_RDWR);
embeddedartists 0:0fdadbc3d852 1078 allowWriting = (accmode == O_WRONLY) || (accmode == O_RDWR) || (flags & O_APPEND);
embeddedartists 0:0fdadbc3d852 1079 pos = 0;
embeddedartists 0:0fdadbc3d852 1080 }
embeddedartists 0:0fdadbc3d852 1081
embeddedartists 0:0fdadbc3d852 1082 int QSPIFileHandle::close()
embeddedartists 0:0fdadbc3d852 1083 {
embeddedartists 0:0fdadbc3d852 1084 delete this;
embeddedartists 0:0fdadbc3d852 1085 return 0;
embeddedartists 0:0fdadbc3d852 1086 }
embeddedartists 0:0fdadbc3d852 1087
embeddedartists 0:0fdadbc3d852 1088 ssize_t QSPIFileHandle::write(const void *buffer, size_t length)
embeddedartists 0:0fdadbc3d852 1089 {
embeddedartists 0:0fdadbc3d852 1090 if (!allowWriting) {
embeddedartists 0:0fdadbc3d852 1091 return -1;
embeddedartists 0:0fdadbc3d852 1092 }
embeddedartists 0:0fdadbc3d852 1093 fresult res = qspifs_write(&fh, (const uint8_t*)buffer, length);
embeddedartists 0:0fdadbc3d852 1094 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1095 // A write is always 'append' in this file system so the file
embeddedartists 0:0fdadbc3d852 1096 // position is always end of file after a write
embeddedartists 0:0fdadbc3d852 1097 pos = fh.size;
embeddedartists 0:0fdadbc3d852 1098 return length;
embeddedartists 0:0fdadbc3d852 1099 }
embeddedartists 0:0fdadbc3d852 1100 return -1;
embeddedartists 0:0fdadbc3d852 1101 }
embeddedartists 0:0fdadbc3d852 1102
embeddedartists 0:0fdadbc3d852 1103 ssize_t QSPIFileHandle::read(void *buffer, size_t length)
embeddedartists 0:0fdadbc3d852 1104 {
embeddedartists 0:0fdadbc3d852 1105 if (!allowReading) {
embeddedartists 0:0fdadbc3d852 1106 return -1;
embeddedartists 0:0fdadbc3d852 1107 }
embeddedartists 0:0fdadbc3d852 1108 if (pos >= fh.size) {
embeddedartists 0:0fdadbc3d852 1109 return 0;
embeddedartists 0:0fdadbc3d852 1110 }
embeddedartists 0:0fdadbc3d852 1111 uint32_t len = FS_MIN(length, fh.size - pos);
embeddedartists 0:0fdadbc3d852 1112 const char* pData = (const char*)(SPIFI_MEM_BASE + fh.tocIdx*ERASE_SIZE + HEADER_LEN + pos);
embeddedartists 0:0fdadbc3d852 1113 memcpy(buffer, pData, len);
embeddedartists 0:0fdadbc3d852 1114 pos += len;
embeddedartists 0:0fdadbc3d852 1115 return len;
embeddedartists 0:0fdadbc3d852 1116 }
embeddedartists 0:0fdadbc3d852 1117
embeddedartists 0:0fdadbc3d852 1118 int QSPIFileHandle::isatty()
embeddedartists 0:0fdadbc3d852 1119 {
embeddedartists 0:0fdadbc3d852 1120 return 0;
embeddedartists 0:0fdadbc3d852 1121 }
embeddedartists 0:0fdadbc3d852 1122
embeddedartists 0:0fdadbc3d852 1123 off_t QSPIFileHandle::lseek(off_t position, int whence)
embeddedartists 0:0fdadbc3d852 1124 {
embeddedartists 0:0fdadbc3d852 1125 switch (whence) {
embeddedartists 0:0fdadbc3d852 1126 case SEEK_SET:
embeddedartists 0:0fdadbc3d852 1127 pos = position;
embeddedartists 0:0fdadbc3d852 1128 break;
embeddedartists 0:0fdadbc3d852 1129
embeddedartists 0:0fdadbc3d852 1130 case SEEK_CUR:
embeddedartists 0:0fdadbc3d852 1131 pos += position;
embeddedartists 0:0fdadbc3d852 1132 break;
embeddedartists 0:0fdadbc3d852 1133
embeddedartists 0:0fdadbc3d852 1134 case SEEK_END:
embeddedartists 0:0fdadbc3d852 1135 pos = fh.size + position;
embeddedartists 0:0fdadbc3d852 1136 break;
embeddedartists 0:0fdadbc3d852 1137
embeddedartists 0:0fdadbc3d852 1138 default:
embeddedartists 0:0fdadbc3d852 1139 return -1;
embeddedartists 0:0fdadbc3d852 1140 }
embeddedartists 0:0fdadbc3d852 1141 return pos;
embeddedartists 0:0fdadbc3d852 1142 }
embeddedartists 0:0fdadbc3d852 1143
embeddedartists 0:0fdadbc3d852 1144 int QSPIFileHandle::fsync()
embeddedartists 0:0fdadbc3d852 1145 {
embeddedartists 0:0fdadbc3d852 1146 return 0; // always synced
embeddedartists 0:0fdadbc3d852 1147 }
embeddedartists 0:0fdadbc3d852 1148
embeddedartists 0:0fdadbc3d852 1149 off_t QSPIFileHandle::flen()
embeddedartists 0:0fdadbc3d852 1150 {
embeddedartists 0:0fdadbc3d852 1151 return fh.size;
embeddedartists 0:0fdadbc3d852 1152 }
embeddedartists 0:0fdadbc3d852 1153
embeddedartists 0:0fdadbc3d852 1154 QSPIDirHandle::QSPIDirHandle(const char* dirname) {
embeddedartists 0:0fdadbc3d852 1155 size_t len = strlen(dirname);
embeddedartists 0:0fdadbc3d852 1156 this->dirname = (char*)malloc(len + 2); // null termination and possible ending '/'
embeddedartists 0:0fdadbc3d852 1157 if (this->dirname != NULL) {
embeddedartists 0:0fdadbc3d852 1158 if (len == 0 || ((len == 1) && (dirname[0] == '/'))) {
embeddedartists 0:0fdadbc3d852 1159 isRoot = true;
embeddedartists 0:0fdadbc3d852 1160 this->dirname[0] = '\0';
embeddedartists 0:0fdadbc3d852 1161 } else {
embeddedartists 0:0fdadbc3d852 1162 isRoot = false;
embeddedartists 0:0fdadbc3d852 1163 memcpy(this->dirname, dirname, len+1);
embeddedartists 0:0fdadbc3d852 1164 if (dirname[len - 1] != '/') {
embeddedartists 0:0fdadbc3d852 1165 this->dirname[len] = '/';
embeddedartists 0:0fdadbc3d852 1166 this->dirname[len+1] = '\0';
embeddedartists 0:0fdadbc3d852 1167 }
embeddedartists 0:0fdadbc3d852 1168 }
embeddedartists 0:0fdadbc3d852 1169 cur_entry.d_name[HEADER_FNAME_STRLEN] = '\0';
embeddedartists 0:0fdadbc3d852 1170 rewinddir();
embeddedartists 0:0fdadbc3d852 1171 }
embeddedartists 0:0fdadbc3d852 1172 }
embeddedartists 0:0fdadbc3d852 1173
embeddedartists 0:0fdadbc3d852 1174 QSPIDirHandle::~QSPIDirHandle()
embeddedartists 0:0fdadbc3d852 1175 {
embeddedartists 0:0fdadbc3d852 1176 if (dirname != NULL) {
embeddedartists 0:0fdadbc3d852 1177 delete dirname;
embeddedartists 0:0fdadbc3d852 1178 dirname = NULL;
embeddedartists 0:0fdadbc3d852 1179 }
embeddedartists 0:0fdadbc3d852 1180 }
embeddedartists 0:0fdadbc3d852 1181
embeddedartists 0:0fdadbc3d852 1182 QSPIDirHandle* QSPIDirHandle::openDir(const char* dirname)
embeddedartists 0:0fdadbc3d852 1183 {
embeddedartists 0:0fdadbc3d852 1184 QSPIDirHandle* d = new QSPIDirHandle(dirname);
embeddedartists 0:0fdadbc3d852 1185 if (d->dirname == NULL) {
embeddedartists 0:0fdadbc3d852 1186 // failed to allocate memory for the folder name
embeddedartists 0:0fdadbc3d852 1187 delete d;
embeddedartists 0:0fdadbc3d852 1188 d = NULL;
embeddedartists 0:0fdadbc3d852 1189 } else if (!d->isRoot) {
embeddedartists 0:0fdadbc3d852 1190 if (d->findFileWithPrefix(d->dirname, 0, NUM_BLOCKS) == NUM_BLOCKS) {
embeddedartists 0:0fdadbc3d852 1191 // There are no files in this directory, i.e. it does not exist
embeddedartists 0:0fdadbc3d852 1192 delete d;
embeddedartists 0:0fdadbc3d852 1193 d = NULL;
embeddedartists 0:0fdadbc3d852 1194 }
embeddedartists 0:0fdadbc3d852 1195 }
embeddedartists 0:0fdadbc3d852 1196 return d;
embeddedartists 0:0fdadbc3d852 1197 }
embeddedartists 0:0fdadbc3d852 1198
embeddedartists 0:0fdadbc3d852 1199 int QSPIDirHandle::closedir() {
embeddedartists 0:0fdadbc3d852 1200 delete this;
embeddedartists 0:0fdadbc3d852 1201 return 0;
embeddedartists 0:0fdadbc3d852 1202 }
embeddedartists 0:0fdadbc3d852 1203
embeddedartists 0:0fdadbc3d852 1204 int QSPIDirHandle::findFileWithPrefix(const char* prefix, int startTOCIdx, int maxTOCIdx) const
embeddedartists 0:0fdadbc3d852 1205 {
embeddedartists 0:0fdadbc3d852 1206 for (int i = startTOCIdx; i < maxTOCIdx; i++) {
embeddedartists 0:0fdadbc3d852 1207 if (TOC_IS_FILE(TOC[i])) {
embeddedartists 0:0fdadbc3d852 1208 const char* filename = (const char*) (SPIFI_MEM_BASE + i * ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 1209 if (qspifs_startsWith(prefix, filename)) {
embeddedartists 0:0fdadbc3d852 1210 return i;
embeddedartists 0:0fdadbc3d852 1211 }
embeddedartists 0:0fdadbc3d852 1212 }
embeddedartists 0:0fdadbc3d852 1213 }
embeddedartists 0:0fdadbc3d852 1214 return NUM_BLOCKS; // no match
embeddedartists 0:0fdadbc3d852 1215 }
embeddedartists 0:0fdadbc3d852 1216
embeddedartists 0:0fdadbc3d852 1217
embeddedartists 0:0fdadbc3d852 1218 struct dirent *QSPIDirHandle::readdir() {
embeddedartists 0:0fdadbc3d852 1219 if (nextTocIdx < NUM_BLOCKS) {
embeddedartists 0:0fdadbc3d852 1220 for (int i = nextTocIdx; i < NUM_BLOCKS; i++) {
embeddedartists 0:0fdadbc3d852 1221 int possible = findFileWithPrefix(dirname, i, NUM_BLOCKS);
embeddedartists 0:0fdadbc3d852 1222 if (possible < NUM_BLOCKS) {
embeddedartists 0:0fdadbc3d852 1223 const char* fullfilename = (const char*) (SPIFI_MEM_BASE + possible * ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 1224 const char* filename = fullfilename + strlen(dirname);
embeddedartists 0:0fdadbc3d852 1225
embeddedartists 0:0fdadbc3d852 1226 if (strchr(filename, '/') == NULL) {
embeddedartists 0:0fdadbc3d852 1227 // file is not in any sub folder so it is truly in the wanted dir
embeddedartists 0:0fdadbc3d852 1228 nextTocIdx = possible + 1;
embeddedartists 0:0fdadbc3d852 1229 strcpy(cur_entry.d_name, filename);
embeddedartists 0:0fdadbc3d852 1230 return &cur_entry;
embeddedartists 0:0fdadbc3d852 1231 }
embeddedartists 0:0fdadbc3d852 1232
embeddedartists 0:0fdadbc3d852 1233 // this is a file in a subfolder and should not be reported,
embeddedartists 0:0fdadbc3d852 1234 // but the folder name itself should
embeddedartists 0:0fdadbc3d852 1235 strcpy(cur_entry.d_name, fullfilename);
embeddedartists 0:0fdadbc3d852 1236 char* pSlash = strchr(cur_entry.d_name + strlen(dirname), '/');
embeddedartists 0:0fdadbc3d852 1237 pSlash++;
embeddedartists 0:0fdadbc3d852 1238 *pSlash = '\0';
embeddedartists 0:0fdadbc3d852 1239
embeddedartists 0:0fdadbc3d852 1240 // now that cur_entry.d_name contains the folder's complete
embeddedartists 0:0fdadbc3d852 1241 // path with a trailing '/', see if it has occurred earlier
embeddedartists 0:0fdadbc3d852 1242 int older = findFileWithPrefix(cur_entry.d_name, 0, i);
embeddedartists 0:0fdadbc3d852 1243 if (older < possible) {
embeddedartists 0:0fdadbc3d852 1244 // already reported, move past this entry
embeddedartists 0:0fdadbc3d852 1245 i = possible;
embeddedartists 0:0fdadbc3d852 1246 } else {
embeddedartists 0:0fdadbc3d852 1247 // found a new subfolder
embeddedartists 0:0fdadbc3d852 1248 nextTocIdx = possible + 1;
embeddedartists 0:0fdadbc3d852 1249 strcpy(cur_entry.d_name, filename);
embeddedartists 0:0fdadbc3d852 1250 char* pSlash = strchr(cur_entry.d_name, '/');
embeddedartists 0:0fdadbc3d852 1251 // pSlash++; //with ++ the returned dir name is "mydir/" without ++ "mydir" is returned
embeddedartists 0:0fdadbc3d852 1252 *pSlash = '\0';
embeddedartists 0:0fdadbc3d852 1253 return &cur_entry;
embeddedartists 0:0fdadbc3d852 1254 }
embeddedartists 0:0fdadbc3d852 1255 }
embeddedartists 0:0fdadbc3d852 1256 }
embeddedartists 0:0fdadbc3d852 1257 }
embeddedartists 0:0fdadbc3d852 1258 return NULL;
embeddedartists 0:0fdadbc3d852 1259 }
embeddedartists 0:0fdadbc3d852 1260
embeddedartists 0:0fdadbc3d852 1261 void QSPIDirHandle::rewinddir() {
embeddedartists 0:0fdadbc3d852 1262 nextTocIdx = 0;
embeddedartists 0:0fdadbc3d852 1263 }
embeddedartists 0:0fdadbc3d852 1264
embeddedartists 0:0fdadbc3d852 1265
embeddedartists 0:0fdadbc3d852 1266 QSPIFileSystem::QSPIFileSystem(const char* name) :
embeddedartists 0:0fdadbc3d852 1267 FileSystemLike(name) {
embeddedartists 0:0fdadbc3d852 1268
embeddedartists 0:0fdadbc3d852 1269 activeTOC = -1;
embeddedartists 0:0fdadbc3d852 1270 spifi = NULL;
embeddedartists 0:0fdadbc3d852 1271 }
embeddedartists 0:0fdadbc3d852 1272
embeddedartists 0:0fdadbc3d852 1273 // All modes are supported but:
embeddedartists 0:0fdadbc3d852 1274 //
embeddedartists 0:0fdadbc3d852 1275 // 1) All writes are treated as appends
embeddedartists 0:0fdadbc3d852 1276 // 2) Truncation is only to size 0, i.e. effectively a delete
embeddedartists 0:0fdadbc3d852 1277 // 3) File position operations work like this:
embeddedartists 0:0fdadbc3d852 1278 // ReadOnly - dictates where to read from
embeddedartists 0:0fdadbc3d852 1279 // WriteOnly - ignored, writes are always at the end
embeddedartists 0:0fdadbc3d852 1280 // ReadWrite - dictates where to read from, writes ignore it but
embeddedartists 0:0fdadbc3d852 1281 // sets the position to the end afterwards
embeddedartists 0:0fdadbc3d852 1282 //
embeddedartists 0:0fdadbc3d852 1283 FileHandle *QSPIFileSystem::open(const char *filename, int flags)
embeddedartists 0:0fdadbc3d852 1284 {
embeddedartists 0:0fdadbc3d852 1285 fresult res = qspifs_init();
embeddedartists 0:0fdadbc3d852 1286 // if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1287 // if ((flags & O_ACCMODE) == O_RDONLY) {
embeddedartists 0:0fdadbc3d852 1288 // // ok
embeddedartists 0:0fdadbc3d852 1289 // } else if (flags & O_APPEND) {
embeddedartists 0:0fdadbc3d852 1290 // // ok
embeddedartists 0:0fdadbc3d852 1291 // } else {
embeddedartists 0:0fdadbc3d852 1292 // // not supported yet, this includes all combination of flags
embeddedartists 0:0fdadbc3d852 1293 // // allowing writing at specific positions in the file. This file system
embeddedartists 0:0fdadbc3d852 1294 // // only allows appending
embeddedartists 0:0fdadbc3d852 1295 // res = FS_ERR_INVALID_PARAM;
embeddedartists 0:0fdadbc3d852 1296 // }
embeddedartists 0:0fdadbc3d852 1297 // }
embeddedartists 0:0fdadbc3d852 1298 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1299 if (strlen(filename) > HEADER_FNAME_STRLEN) {
embeddedartists 0:0fdadbc3d852 1300 // Filename is too long
embeddedartists 0:0fdadbc3d852 1301 res = FS_ERR_INVALID_PARAM;
embeddedartists 0:0fdadbc3d852 1302 }
embeddedartists 0:0fdadbc3d852 1303 }
embeddedartists 0:0fdadbc3d852 1304 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1305 // Handle truncation by silently deleting the file before
embeddedartists 0:0fdadbc3d852 1306 // attempting to open it
embeddedartists 0:0fdadbc3d852 1307 if (flags & O_TRUNC) {
embeddedartists 0:0fdadbc3d852 1308 remove(filename);
embeddedartists 0:0fdadbc3d852 1309 }
embeddedartists 0:0fdadbc3d852 1310 }
embeddedartists 0:0fdadbc3d852 1311 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1312 fileHandle_t fh = {0,0,0};
embeddedartists 0:0fdadbc3d852 1313 res = qspifs_findFile(filename, &fh);
embeddedartists 0:0fdadbc3d852 1314 if ((res == FS_ERR_NO_FILE) && (flags & O_CREAT)) {
embeddedartists 0:0fdadbc3d852 1315 res = qspifs_allocateFile(filename, 1, &fh.tocIdx);
embeddedartists 0:0fdadbc3d852 1316 }
embeddedartists 0:0fdadbc3d852 1317 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1318 res = qspifs_saveTOC();
embeddedartists 0:0fdadbc3d852 1319 }
embeddedartists 0:0fdadbc3d852 1320 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1321 return new QSPIFileHandle(&fh, flags);
embeddedartists 0:0fdadbc3d852 1322 }
embeddedartists 0:0fdadbc3d852 1323 }
embeddedartists 0:0fdadbc3d852 1324 debug_if(QSPI_DBG, "QSPIFS: Failed to open: %d\n", res);
embeddedartists 0:0fdadbc3d852 1325 return NULL;
embeddedartists 0:0fdadbc3d852 1326 }
embeddedartists 0:0fdadbc3d852 1327
embeddedartists 0:0fdadbc3d852 1328 int QSPIFileSystem::remove(const char *filename)
embeddedartists 0:0fdadbc3d852 1329 {
embeddedartists 0:0fdadbc3d852 1330 fileHandle_t fh = {0,0,0};
embeddedartists 0:0fdadbc3d852 1331 fresult res = qspifs_init();
embeddedartists 0:0fdadbc3d852 1332 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1333 res = qspifs_findFile(filename, &fh);
embeddedartists 0:0fdadbc3d852 1334 }
embeddedartists 0:0fdadbc3d852 1335 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1336 qspifs_deleteFile(&fh);
embeddedartists 0:0fdadbc3d852 1337 res = qspifs_saveTOC();
embeddedartists 0:0fdadbc3d852 1338 }
embeddedartists 0:0fdadbc3d852 1339 else if (res == FS_ERR_NO_FILE) {
embeddedartists 0:0fdadbc3d852 1340 // file does not exist so treat it as a successful deletion
embeddedartists 0:0fdadbc3d852 1341 res = FS_OK;
embeddedartists 0:0fdadbc3d852 1342 }
embeddedartists 0:0fdadbc3d852 1343 if (res != FS_OK) {
embeddedartists 0:0fdadbc3d852 1344 debug_if(QSPI_DBG, "QSPIFS: Failed to delete %s: %d\n", filename, res);
embeddedartists 0:0fdadbc3d852 1345 return -1;
embeddedartists 0:0fdadbc3d852 1346 }
embeddedartists 0:0fdadbc3d852 1347 return 0;
embeddedartists 0:0fdadbc3d852 1348 }
embeddedartists 0:0fdadbc3d852 1349
embeddedartists 0:0fdadbc3d852 1350 int QSPIFileSystem::rename(const char *oldname, const char *newname)
embeddedartists 0:0fdadbc3d852 1351 {
embeddedartists 0:0fdadbc3d852 1352 fileHandle_t fhOld = {0,0,0};
embeddedartists 0:0fdadbc3d852 1353 fileHandle_t fhNew = {0,0,0};
embeddedartists 0:0fdadbc3d852 1354
embeddedartists 0:0fdadbc3d852 1355 fresult res = qspifs_init();
embeddedartists 0:0fdadbc3d852 1356 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1357 res = qspifs_findFile(oldname, &fhOld);
embeddedartists 0:0fdadbc3d852 1358 }
embeddedartists 0:0fdadbc3d852 1359 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1360 // Make sure the destination file doesn't exist
embeddedartists 0:0fdadbc3d852 1361 res = qspifs_findFile(newname, &fhNew);
embeddedartists 0:0fdadbc3d852 1362 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1363 res = FS_ERR_FILE_EXIST;
embeddedartists 0:0fdadbc3d852 1364 } else if (res == FS_ERR_NO_FILE) {
embeddedartists 0:0fdadbc3d852 1365 res = FS_OK;
embeddedartists 0:0fdadbc3d852 1366 }
embeddedartists 0:0fdadbc3d852 1367 }
embeddedartists 0:0fdadbc3d852 1368 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1369 int numNeededBlocks = 1 + ((fhOld.size + HEADER_LEN) / ERASE_SIZE);
embeddedartists 0:0fdadbc3d852 1370 res = qspifs_allocateFile(newname, numNeededBlocks, &fhNew.tocIdx);
embeddedartists 0:0fdadbc3d852 1371 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1372 const uint8_t* pData = (const uint8_t*)(SPIFI_MEM_BASE + fhOld.tocIdx*ERASE_SIZE + HEADER_LEN);
embeddedartists 0:0fdadbc3d852 1373 res = qspifs_write(&fhNew, pData, fhOld.size);
embeddedartists 0:0fdadbc3d852 1374 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1375 qspifs_deleteFile(&fhOld);
embeddedartists 0:0fdadbc3d852 1376 } else {
embeddedartists 0:0fdadbc3d852 1377 qspifs_deleteFile(&fhNew);
embeddedartists 0:0fdadbc3d852 1378 }
embeddedartists 0:0fdadbc3d852 1379 }
embeddedartists 0:0fdadbc3d852 1380 qspifs_saveTOC();
embeddedartists 0:0fdadbc3d852 1381 }
embeddedartists 0:0fdadbc3d852 1382 if (res != FS_OK) {
embeddedartists 0:0fdadbc3d852 1383 debug_if(QSPI_DBG, "QSPIFS: Failed to rename '%s' to '%s': %d\n", oldname, newname, res);
embeddedartists 0:0fdadbc3d852 1384 return -1;
embeddedartists 0:0fdadbc3d852 1385 }
embeddedartists 0:0fdadbc3d852 1386 return 0;
embeddedartists 0:0fdadbc3d852 1387 }
embeddedartists 0:0fdadbc3d852 1388
embeddedartists 0:0fdadbc3d852 1389 DirHandle *QSPIFileSystem::opendir(const char *name)
embeddedartists 0:0fdadbc3d852 1390 {
embeddedartists 0:0fdadbc3d852 1391 FileHandle* fh = open(name, O_RDONLY);
embeddedartists 0:0fdadbc3d852 1392 if (fh != NULL) {
embeddedartists 0:0fdadbc3d852 1393 // Attempting to open a file as a dir
embeddedartists 0:0fdadbc3d852 1394 delete fh;
embeddedartists 0:0fdadbc3d852 1395 return NULL;
embeddedartists 0:0fdadbc3d852 1396 }
embeddedartists 0:0fdadbc3d852 1397
embeddedartists 0:0fdadbc3d852 1398 // printf("opendir: name '%s'\n", name);
embeddedartists 0:0fdadbc3d852 1399 if (strlen(name) <= HEADER_DNAME_MAXLEN) {
embeddedartists 0:0fdadbc3d852 1400 return QSPIDirHandle::openDir(name);
embeddedartists 0:0fdadbc3d852 1401 }
embeddedartists 0:0fdadbc3d852 1402 return NULL;
embeddedartists 0:0fdadbc3d852 1403 }
embeddedartists 0:0fdadbc3d852 1404
embeddedartists 0:0fdadbc3d852 1405 int QSPIFileSystem::mkdir(const char *name, mode_t mode)
embeddedartists 0:0fdadbc3d852 1406 {
embeddedartists 0:0fdadbc3d852 1407 // Creating folders is always successful as there are no folders in this filesystem
embeddedartists 0:0fdadbc3d852 1408 return 0;
embeddedartists 0:0fdadbc3d852 1409 }
embeddedartists 0:0fdadbc3d852 1410
embeddedartists 0:0fdadbc3d852 1411 int QSPIFileSystem::format(unsigned int fsSizeInMB)
embeddedartists 0:0fdadbc3d852 1412 {
embeddedartists 0:0fdadbc3d852 1413 fresult res = qspifs_init();
embeddedartists 0:0fdadbc3d852 1414 if (res == FS_OK || res == FS_ERR_NOT_FORMATTED) {
embeddedartists 0:0fdadbc3d852 1415 if (((fsSizeInMB<<20) > memInfo.memSize) || (fsSizeInMB < 1)) {
embeddedartists 0:0fdadbc3d852 1416 debug_if(QSPI_DBG, "QSPIFS: Failed to format to size %d MByte: error %d\n", fsSizeInMB, res);
embeddedartists 0:0fdadbc3d852 1417 return -1;
embeddedartists 0:0fdadbc3d852 1418 }
embeddedartists 0:0fdadbc3d852 1419 activeTOC = -1;
embeddedartists 0:0fdadbc3d852 1420 res = qspifs_format(memInfo.memSize - (fsSizeInMB<<20));
embeddedartists 0:0fdadbc3d852 1421 }
embeddedartists 0:0fdadbc3d852 1422
embeddedartists 0:0fdadbc3d852 1423 if (res != FS_OK) {
embeddedartists 0:0fdadbc3d852 1424 debug_if(QSPI_DBG, "QSPIFS: Failed to format: %d\n", res);
embeddedartists 0:0fdadbc3d852 1425 return -1;
embeddedartists 0:0fdadbc3d852 1426 }
embeddedartists 0:0fdadbc3d852 1427 return 0;
embeddedartists 0:0fdadbc3d852 1428 }
embeddedartists 0:0fdadbc3d852 1429
embeddedartists 0:0fdadbc3d852 1430 bool QSPIFileSystem::isformatted()
embeddedartists 0:0fdadbc3d852 1431 {
embeddedartists 0:0fdadbc3d852 1432 fresult res = qspifs_init();
embeddedartists 0:0fdadbc3d852 1433 if (res == FS_OK) {
embeddedartists 0:0fdadbc3d852 1434 return true;
embeddedartists 0:0fdadbc3d852 1435 } else if (res == FS_ERR_NOT_FORMATTED) {
embeddedartists 0:0fdadbc3d852 1436 return false;
embeddedartists 0:0fdadbc3d852 1437 }
embeddedartists 0:0fdadbc3d852 1438 debug_if(QSPI_DBG, "QSPIFS: Failed to detect status: %d\n", res);
embeddedartists 0:0fdadbc3d852 1439 return false;
embeddedartists 0:0fdadbc3d852 1440 }
embeddedartists 0:0fdadbc3d852 1441
embeddedartists 0:0fdadbc3d852 1442 bool QSPIFileSystem::getMemoryBoundaries(uint32_t* pStartAddr, uint32_t* pEndAddr)
embeddedartists 0:0fdadbc3d852 1443 {
embeddedartists 0:0fdadbc3d852 1444 if (isformatted())
embeddedartists 0:0fdadbc3d852 1445 {
embeddedartists 0:0fdadbc3d852 1446 *pEndAddr = 0x28000000 + memInfo.memSize;
embeddedartists 0:0fdadbc3d852 1447
embeddedartists 0:0fdadbc3d852 1448 // Look at all blocks except for the reserved ones
embeddedartists 0:0fdadbc3d852 1449 for (int i = 0; i < NUM_BLOCKS; i++)
embeddedartists 0:0fdadbc3d852 1450 {
embeddedartists 0:0fdadbc3d852 1451 if (!TOC_IS_RESERVED(TOC[i]))
embeddedartists 0:0fdadbc3d852 1452 {
embeddedartists 0:0fdadbc3d852 1453 // Found first non-reserved erase block, indicating the start of
embeddedartists 0:0fdadbc3d852 1454 // the file system.
embeddedartists 0:0fdadbc3d852 1455 *pStartAddr = SPIFI_MEM_BASE + i*ERASE_SIZE;
embeddedartists 0:0fdadbc3d852 1456 return true;
embeddedartists 0:0fdadbc3d852 1457 }
embeddedartists 0:0fdadbc3d852 1458 }
embeddedartists 0:0fdadbc3d852 1459
embeddedartists 0:0fdadbc3d852 1460 // The entire file system seems to be reserved which should never happen
embeddedartists 0:0fdadbc3d852 1461 // but just in case, report it as beeing 1MB in size.
embeddedartists 0:0fdadbc3d852 1462 *pStartAddr = *pEndAddr - 1024*1024;
embeddedartists 0:0fdadbc3d852 1463 return true;
embeddedartists 0:0fdadbc3d852 1464 }
embeddedartists 0:0fdadbc3d852 1465 return false;
embeddedartists 0:0fdadbc3d852 1466 }