| 1 |
/*********************************************************************
|
| 2 |
*
|
| 3 |
* Microchip File System
|
| 4 |
*
|
| 5 |
*********************************************************************
|
| 6 |
* FileName: MPFS.h
|
| 7 |
* Dependencies: StackTsk.H
|
| 8 |
* Processor: PIC18, PIC24F, PIC24H, dsPIC30F, dsPIC33F
|
| 9 |
* Complier: Microchip C18 v3.02 or higher
|
| 10 |
* Microchip C30 v2.01 or higher
|
| 11 |
* Company: Microchip Technology, Inc.
|
| 12 |
*
|
| 13 |
* Software License Agreement
|
| 14 |
*
|
| 15 |
* Copyright © 2002-2007 Microchip Technology Inc. All rights
|
| 16 |
* reserved.
|
| 17 |
*
|
| 18 |
* Microchip licenses to you the right to use, modify, copy, and
|
| 19 |
* distribute:
|
| 20 |
* (i) the Software when embedded on a Microchip microcontroller or
|
| 21 |
* digital signal controller product (“Device”) which is
|
| 22 |
* integrated into Licensee’s product; or
|
| 23 |
* (ii) ONLY the Software driver source files ENC28J60.c and
|
| 24 |
* ENC28J60.h ported to a non-Microchip device used in
|
| 25 |
* conjunction with a Microchip ethernet controller for the
|
| 26 |
* sole purpose of interfacing with the ethernet controller.
|
| 27 |
*
|
| 28 |
* You should refer to the license agreement accompanying this
|
| 29 |
* Software for additional information regarding your rights and
|
| 30 |
* obligations.
|
| 31 |
*
|
| 32 |
* THE SOFTWARE AND DOCUMENTATION ARE PROVIDED “AS IS” WITHOUT
|
| 33 |
* WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT
|
| 34 |
* LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A
|
| 35 |
* PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL
|
| 36 |
* MICROCHIP BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR
|
| 37 |
* CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF
|
| 38 |
* PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR SERVICES, ANY CLAIMS
|
| 39 |
* BY THIRD PARTIES (INCLUDING BUT NOT LIMITED TO ANY DEFENSE
|
| 40 |
* THEREOF), ANY CLAIMS FOR INDEMNITY OR CONTRIBUTION, OR OTHER
|
| 41 |
* SIMILAR COSTS, WHETHER ASSERTED ON THE BASIS OF CONTRACT, TORT
|
| 42 |
* (INCLUDING NEGLIGENCE), BREACH OF WARRANTY, OR OTHERWISE.
|
| 43 |
*
|
| 44 |
*
|
| 45 |
* Author Date Comment
|
| 46 |
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
| 47 |
* Nilesh Rajbharti 8/14/01 Original (Rev. 1.0)
|
| 48 |
* Nilesh Rajbharti 2/9/02 Cleanup
|
| 49 |
* Nilesh Rajbharti 5/22/02 Rev 2.0 (See version.log for detail)
|
| 50 |
* Howard Schlunder 5/31/06 Changed EEPROM addressing to 32 bits
|
| 51 |
********************************************************************/
|
| 52 |
#ifndef __MPFS_H
|
| 53 |
#define __MPFS_H
|
| 54 |
|
| 55 |
#if defined(MPFS_USE_EEPROM)
|
| 56 |
typedef DWORD MPFS; // For default 32 bit addressing (use /ll option with MPFS.exe)
|
| 57 |
#define MPFS_INVALID (0xffffffffu) // For default 32 bit addressing (use /ll option with MPFS.exe)
|
| 58 |
// typedef WORD MPFS; // For old short 16 bit addressing (use /b option with MPFS.exe)
|
| 59 |
// #define MPFS_INVALID (0xffff) // For old short 16 bit addressing (use /b option with MPFS.exe)
|
| 60 |
#else
|
| 61 |
#if defined(__C30__)
|
| 62 |
typedef DWORD MPFS;
|
| 63 |
#define MPFS_INVALID (MPFS)(0xffffffffu)
|
| 64 |
#else
|
| 65 |
typedef ROM BYTE* MPFS;
|
| 66 |
#define MPFS_INVALID (MPFS)(0xffffffu)
|
| 67 |
#endif
|
| 68 |
#endif
|
| 69 |
|
| 70 |
#define MPFS_NOT_AVAILABLE (0x0u)
|
| 71 |
|
| 72 |
#if defined(MPFS_USE_EEPROM)
|
| 73 |
#define MPFS_WRITE_PAGE_SIZE (64u)
|
| 74 |
#endif
|
| 75 |
|
| 76 |
|
| 77 |
|
| 78 |
/*********************************************************************
|
| 79 |
* Function: BOOL MPFSInit(void)
|
| 80 |
*
|
| 81 |
* PreCondition: None
|
| 82 |
*
|
| 83 |
* Input: None
|
| 84 |
*
|
| 85 |
* Output: TRUE, if MPFS Storage access is initialized and
|
| 86 |
* MPFS is is ready to be used.
|
| 87 |
* FALSE otherwise
|
| 88 |
*
|
| 89 |
* Side Effects: None
|
| 90 |
*
|
| 91 |
* Overview: None
|
| 92 |
*
|
| 93 |
* Note: None
|
| 94 |
********************************************************************/
|
| 95 |
BOOL MPFSInit(void);
|
| 96 |
|
| 97 |
|
| 98 |
/*********************************************************************
|
| 99 |
* Function: MPFS MPFSOpen(BYTE* name)
|
| 100 |
*
|
| 101 |
* PreCondition: None
|
| 102 |
*
|
| 103 |
* Input: name - NULL terminate file name.
|
| 104 |
*
|
| 105 |
* Output: MPFS_INVALID if not found
|
| 106 |
* != MPFS_INVALID if found ok.
|
| 107 |
*
|
| 108 |
* Side Effects: None
|
| 109 |
*
|
| 110 |
* Overview: None
|
| 111 |
*
|
| 112 |
* Note: None
|
| 113 |
********************************************************************/
|
| 114 |
MPFS MPFSOpen(BYTE* name);
|
| 115 |
|
| 116 |
|
| 117 |
|
| 118 |
/*********************************************************************
|
| 119 |
* Function: void MPFSClose(void)
|
| 120 |
*
|
| 121 |
* PreCondition: None
|
| 122 |
*
|
| 123 |
* Input: handle - File handle to be closed
|
| 124 |
*
|
| 125 |
* Output: None
|
| 126 |
*
|
| 127 |
* Side Effects: None
|
| 128 |
*
|
| 129 |
* Overview: None
|
| 130 |
*
|
| 131 |
* Note: None
|
| 132 |
********************************************************************/
|
| 133 |
void MPFSClose(void);
|
| 134 |
|
| 135 |
|
| 136 |
/*********************************************************************
|
| 137 |
* Function: BOOL MPFSGetBegin(MPFS handle)
|
| 138 |
*
|
| 139 |
* PreCondition: MPFSOpen() != MPFS_INVALID &&
|
| 140 |
*
|
| 141 |
* Input: handle - handle of file that is to be read
|
| 142 |
*
|
| 143 |
* Output: TRUE if successful
|
| 144 |
* !TRUE otherwise
|
| 145 |
*
|
| 146 |
* Side Effects: None
|
| 147 |
*
|
| 148 |
* Overview: Prepares MPFS storage media for subsequent reads.
|
| 149 |
*
|
| 150 |
* Note: None
|
| 151 |
********************************************************************/
|
| 152 |
#if defined(MPFS_USE_EEPROM)
|
| 153 |
BOOL MPFSGetBegin(MPFS handle);
|
| 154 |
#else
|
| 155 |
#define MPFSGetBegin(handle) (_currentHandle = handle)
|
| 156 |
#endif
|
| 157 |
|
| 158 |
|
| 159 |
/*********************************************************************
|
| 160 |
* Function: BYTE MPFSGet(void)
|
| 161 |
*
|
| 162 |
* PreCondition: MPFSOpen() != MPFS_INVALID &&
|
| 163 |
* MPFSGetBegin() == TRUE
|
| 164 |
*
|
| 165 |
* Input: None
|
| 166 |
*
|
| 167 |
* Output: Data byte from current address.
|
| 168 |
*
|
| 169 |
* Side Effects: None
|
| 170 |
*
|
| 171 |
* Overview: Reads a byte from current address.
|
| 172 |
*
|
| 173 |
* Note: Caller must call MPFSIsEOF() to check for end of
|
| 174 |
* file condition
|
| 175 |
********************************************************************/
|
| 176 |
BYTE MPFSGet(void);
|
| 177 |
|
| 178 |
|
| 179 |
/*********************************************************************
|
| 180 |
* Function: MPFS MPFSGetEnd(void)
|
| 181 |
*
|
| 182 |
* PreCondition: MPFSOpen() != MPFS_INVALID &&
|
| 183 |
* MPFSGetBegin() = TRUE
|
| 184 |
*
|
| 185 |
* Input: None
|
| 186 |
*
|
| 187 |
* Output: Current mpfs handle.
|
| 188 |
*
|
| 189 |
* Side Effects: None
|
| 190 |
*
|
| 191 |
* Overview: Ends on-going read cycle.
|
| 192 |
* MPFS handle that is returned must be used
|
| 193 |
* for subsequent begin gets..
|
| 194 |
*
|
| 195 |
* Note: None
|
| 196 |
********************************************************************/
|
| 197 |
#if defined(MPFS_USE_EEPROM)
|
| 198 |
MPFS MPFSGetEnd(void);
|
| 199 |
#else
|
| 200 |
#define MPFSGetEnd() _currentHandle
|
| 201 |
#endif
|
| 202 |
|
| 203 |
|
| 204 |
/*********************************************************************
|
| 205 |
* Macro: BOOL MPFSIsEOF(void)
|
| 206 |
*
|
| 207 |
* PreCondition: MPFSGetBegin() must be called.
|
| 208 |
*
|
| 209 |
* Input: None
|
| 210 |
*
|
| 211 |
* Output: TRUE if current file read has reached end of file.
|
| 212 |
* FALSE if otherwise.
|
| 213 |
*
|
| 214 |
* Side Effects: None
|
| 215 |
*
|
| 216 |
* Overview: None
|
| 217 |
*
|
| 218 |
* Note: None
|
| 219 |
********************************************************************/
|
| 220 |
#define MPFSIsEOF() (_currentHandle == MPFS_INVALID)
|
| 221 |
|
| 222 |
|
| 223 |
/*********************************************************************
|
| 224 |
* Function: MPFS MPFSFormat(void)
|
| 225 |
*
|
| 226 |
* PreCondition: None
|
| 227 |
*
|
| 228 |
* Input: None
|
| 229 |
*
|
| 230 |
* Output: A valid MPFS handle that can be used for MPFSPut
|
| 231 |
*
|
| 232 |
* Side Effects: None
|
| 233 |
*
|
| 234 |
* Overview: Prepares MPFS image to get re-written
|
| 235 |
* Declares MPFS as in use.
|
| 236 |
*
|
| 237 |
* Note: MPFS will be unaccessible until MPFSClose is
|
| 238 |
* called.
|
| 239 |
********************************************************************/
|
| 240 |
MPFS MPFSFormat(void);
|
| 241 |
|
| 242 |
|
| 243 |
|
| 244 |
/*********************************************************************
|
| 245 |
* Function: BOOL MPFSPutBegin(MPFS handle)
|
| 246 |
*
|
| 247 |
* PreCondition: MPFSInit() and MPFSFormat() are already called.
|
| 248 |
*
|
| 249 |
* Input: handle - handle to where put to begin
|
| 250 |
*
|
| 251 |
* Output: TRUE if successful
|
| 252 |
* !TRUE otherwise
|
| 253 |
*
|
| 254 |
* Side Effects: None
|
| 255 |
*
|
| 256 |
* Overview: Prepares MPFS image to get re-written
|
| 257 |
*
|
| 258 |
* Note: MPFS will be unaccessible until MPFSClose is
|
| 259 |
* called.
|
| 260 |
********************************************************************/
|
| 261 |
#if defined(MPFS_USE_EEPROM)
|
| 262 |
BOOL MPFSPutBegin(MPFS handle);
|
| 263 |
#else
|
| 264 |
#define MPFSPutBegin(handle) (_currentHandle = handle)
|
| 265 |
#endif
|
| 266 |
|
| 267 |
|
| 268 |
/*********************************************************************
|
| 269 |
* Function: BOOL MPFSPut(BYTE b)
|
| 270 |
*
|
| 271 |
* PreCondition: MPFSFormat() or MPFSCreate() must be called
|
| 272 |
*
|
| 273 |
* Input: b - byte to be written
|
| 274 |
*
|
| 275 |
* Output: TRUE if successful
|
| 276 |
* !TRUE if otherwise
|
| 277 |
*
|
| 278 |
* Side Effects: MPFS handle is updated.
|
| 279 |
*
|
| 280 |
* Overview: None
|
| 281 |
*
|
| 282 |
* Note: Since this function updates internal MPFS handle
|
| 283 |
* caller must call MPFSPutEnd() to obtain
|
| 284 |
* up-to-date handle.
|
| 285 |
********************************************************************/
|
| 286 |
BOOL MPFSPut(BYTE b);
|
| 287 |
|
| 288 |
|
| 289 |
/*********************************************************************
|
| 290 |
* Function: MPFS MPFSPutEnd(void)
|
| 291 |
*
|
| 292 |
* PreCondition: MPFSPutBegin() is already called.
|
| 293 |
*
|
| 294 |
* Input: None
|
| 295 |
*
|
| 296 |
* Output: Up-to-date MPFS handle
|
| 297 |
*
|
| 298 |
* Side Effects: Original MPFS handle is no longer valid.
|
| 299 |
* Updated MPFS handle must be obtained by calling
|
| 300 |
* MPFSPutEnd().
|
| 301 |
*
|
| 302 |
* Overview: None
|
| 303 |
*
|
| 304 |
* Note: Actual write may not get started until internal
|
| 305 |
* write page is full. To ensure that previously
|
| 306 |
* data gets written, caller must call MPFSPutEnd()
|
| 307 |
* after last call to MPFSPut().
|
| 308 |
********************************************************************/
|
| 309 |
MPFS MPFSPutEnd(void);
|
| 310 |
|
| 311 |
|
| 312 |
/*********************************************************************
|
| 313 |
* Macro: BYTE MPFSInUse(void)
|
| 314 |
*
|
| 315 |
* PreCondition: None
|
| 316 |
*
|
| 317 |
* Input: None
|
| 318 |
*
|
| 319 |
* Output: No. of file currently open.
|
| 320 |
* If == 0, MPFS is not in use.
|
| 321 |
*
|
| 322 |
* Side Effects: None
|
| 323 |
*
|
| 324 |
* Overview: None
|
| 325 |
*
|
| 326 |
* Note: None
|
| 327 |
********************************************************************/
|
| 328 |
#if !defined(__MPFS_C)
|
| 329 |
extern BYTE mpfsOpenCount;
|
| 330 |
#endif
|
| 331 |
|
| 332 |
/*********************************************************************
|
| 333 |
* Function: MPFS MPFSSeek(MPFS offset)
|
| 334 |
*
|
| 335 |
* PreCondition: MPFSGetBegin() is already called.
|
| 336 |
*
|
| 337 |
* Input: offset - Offset from current pointer
|
| 338 |
*
|
| 339 |
* Output: New MPFS handle located to given offset
|
| 340 |
*
|
| 341 |
* Side Effects: None.
|
| 342 |
*
|
| 343 |
* Overview: None
|
| 344 |
*
|
| 345 |
* Note: None.
|
| 346 |
********************************************************************/
|
| 347 |
MPFS MPFSSeek(MPFS offset);
|
| 348 |
|
| 349 |
|
| 350 |
/*********************************************************************
|
| 351 |
* Function: MPFS MPFSTell(void)
|
| 352 |
*
|
| 353 |
* PreCondition: MPFSOpen() is already called.
|
| 354 |
*
|
| 355 |
* Input: None
|
| 356 |
*
|
| 357 |
* Output: current MPFS file pointer
|
| 358 |
*
|
| 359 |
* Side Effects: None.
|
| 360 |
*
|
| 361 |
* Overview: None
|
| 362 |
*
|
| 363 |
* Note: None.
|
| 364 |
********************************************************************/
|
| 365 |
#define MPFSTell() (_currentHandle)
|
| 366 |
|
| 367 |
|
| 368 |
#define MPFSIsInUse() (mpfsOpenCount)
|
| 369 |
|
| 370 |
#if !defined(__MPFS_C)
|
| 371 |
extern MPFS _currentHandle;
|
| 372 |
extern BYTE _currentCount;
|
| 373 |
#endif
|
| 374 |
|
| 375 |
|
| 376 |
#endif
|
Parent Directory
| 
Revision Log