Meindert Kuipers / Mbed 2 deprecated MMEx_Challenge

MMEx with SPI Slave to allow legacy devices to communicate with modern media such as USB, SD cards, the internet and all of the mbed\'s other interfaces

Dependencies:   NetServices MSCUsbHost mbed TMP102 SDFileSystem

ffuncs.cpp@0:67a55a82ce06, 2011-02-27 (annotated)

Committer:
DeMein
Date:
Sun Feb 27 18:54:40 2011 +0000
Revision:
0:67a55a82ce06
Version as submitted to the NXP Design Challenge

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DeMein 0:67a55a82ce06 1 /* MMEx for MBED - File I/O Command processing
DeMein 0:67a55a82ce06 2 * Copyright (c) 2011 MK
DeMein 0:67a55a82ce06 3 *
DeMein 0:67a55a82ce06 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
DeMein 0:67a55a82ce06 5 * of this software and associated documentation files (the "Software"), to deal
DeMein 0:67a55a82ce06 6 * in the Software without restriction, including without limitation the rights
DeMein 0:67a55a82ce06 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
DeMein 0:67a55a82ce06 8 * copies of the Software, and to permit persons to whom the Software is
DeMein 0:67a55a82ce06 9 * furnished to do so, subject to the following conditions:
DeMein 0:67a55a82ce06 10 *
DeMein 0:67a55a82ce06 11 * The above copyright notice and this permission notice shall be included in
DeMein 0:67a55a82ce06 12 * all copies or substantial portions of the Software.
DeMein 0:67a55a82ce06 13 *
DeMein 0:67a55a82ce06 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
DeMein 0:67a55a82ce06 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
DeMein 0:67a55a82ce06 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
DeMein 0:67a55a82ce06 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
DeMein 0:67a55a82ce06 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
DeMein 0:67a55a82ce06 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
DeMein 0:67a55a82ce06 20 * THE SOFTWARE.
DeMein 0:67a55a82ce06 21 */
DeMein 0:67a55a82ce06 22
DeMein 0:67a55a82ce06 23 /**
DeMein 0:67a55a82ce06 24 \file ffuncs.cpp
DeMein 0:67a55a82ce06 25 \brief Commands starting with F for File I/O
DeMein 0:67a55a82ce06 26 */
DeMein 0:67a55a82ce06 27
DeMein 0:67a55a82ce06 28 #include "ffuncs.h"
DeMein 0:67a55a82ce06 29
DeMein 0:67a55a82ce06 30 FILE *fp1;
DeMein 0:67a55a82ce06 31 SDFileSystem sd(p5, p6, p7, p8, fs_sd);
DeMein 0:67a55a82ce06 32 MSCFileSystem msc(fs_usb);
DeMein 0:67a55a82ce06 33 LocalFileSystem local(fs_local);
DeMein 0:67a55a82ce06 34
DeMein 0:67a55a82ce06 35 // directory handles
DeMein 0:67a55a82ce06 36 FATFS_DIR dj;
DeMein 0:67a55a82ce06 37 DIR *d;
DeMein 0:67a55a82ce06 38 char odirectory = NULL; // keeps track of which directory was opened
DeMein 0:67a55a82ce06 39
DeMein 0:67a55a82ce06 40 fhandle handles[10];
DeMein 0:67a55a82ce06 41
DeMein 0:67a55a82ce06 42 /** initialize file handles on startup
DeMein 0:67a55a82ce06 43 *
DeMein 0:67a55a82ce06 44 */
DeMein 0:67a55a82ce06 45 void init_handles() {
DeMein 0:67a55a82ce06 46 // initialize the file handles
DeMein 0:67a55a82ce06 47 for (int i = 0; i < 10; i++) {
DeMein 0:67a55a82ce06 48 // handles[i].filename = NULL;
DeMein 0:67a55a82ce06 49 // handles[i].medium = NULL;
DeMein 0:67a55a82ce06 50 // handles[i].fsp = NULL;
DeMein 0:67a55a82ce06 51 // handles[i].direct = NULL;
DeMein 0:67a55a82ce06 52 // handles[i].filemode = NULL;
DeMein 0:67a55a82ce06 53 // handles[i].fullpath = NULL;
DeMein 0:67a55a82ce06 54 handles[i].fp = NULL; // we only use this to test
DeMein 0:67a55a82ce06 55 }
DeMein 0:67a55a82ce06 56 }
DeMein 0:67a55a82ce06 57
DeMein 0:67a55a82ce06 58 /** main entry for parsing F-commands
DeMein 0:67a55a82ce06 59 *
DeMein 0:67a55a82ce06 60 */
DeMein 0:67a55a82ce06 61 void parse_F() {
DeMein 0:67a55a82ce06 62 err_num = noerror;
DeMein 0:67a55a82ce06 63 DBG_msg("parse_F", inbuf);
DeMein 0:67a55a82ce06 64
DeMein 0:67a55a82ce06 65 wipesp(inbuf); // first remove space from string
DeMein 0:67a55a82ce06 66
DeMein 0:67a55a82ce06 67 if (inbuf[1] != NULL) {
DeMein 0:67a55a82ce06 68 switch (inbuf[1]) {
DeMein 0:67a55a82ce06 69 case fmount : do_fmount(); // mount storage medium
DeMein 0:67a55a82ce06 70 break;
DeMein 0:67a55a82ce06 71 case funmount : do_funmount(); // unmount storage medium
DeMein 0:67a55a82ce06 72 break;
DeMein 0:67a55a82ce06 73 case ffopen : do_ffopen(); // open file
DeMein 0:67a55a82ce06 74 break;
DeMein 0:67a55a82ce06 75 case ffread : do_ffread(); // read from file
DeMein 0:67a55a82ce06 76 break;
DeMein 0:67a55a82ce06 77 case ffwrite : do_ffwrite(); // write to file
DeMein 0:67a55a82ce06 78 break;
DeMein 0:67a55a82ce06 79 case ffclose : do_ffclose(); // close file
DeMein 0:67a55a82ce06 80 break;
DeMein 0:67a55a82ce06 81 case ffseek : do_ffseek(); // seek to file position
DeMein 0:67a55a82ce06 82 break;
DeMein 0:67a55a82ce06 83 case fflush : do_fflush(); // flush file
DeMein 0:67a55a82ce06 84 break;
DeMein 0:67a55a82ce06 85 case fdir : do_fdir(); // get first directory entry
DeMein 0:67a55a82ce06 86 break;
DeMein 0:67a55a82ce06 87 case fndir : do_fndir(); // get next directory entry
DeMein 0:67a55a82ce06 88 break;
DeMein 0:67a55a82ce06 89 case fftell : do_fftell(); // get next directory entry
DeMein 0:67a55a82ce06 90 break;
DeMein 0:67a55a82ce06 91 case ffsize : do_ffsize(); // get next directory entry
DeMein 0:67a55a82ce06 92 break;
DeMein 0:67a55a82ce06 93 default : do_fdefault(); // command not recognized
DeMein 0:67a55a82ce06 94 break;
DeMein 0:67a55a82ce06 95 }
DeMein 0:67a55a82ce06 96 } else {
DeMein 0:67a55a82ce06 97 do_fdefault(); // command not recognized
DeMein 0:67a55a82ce06 98 }
DeMein 0:67a55a82ce06 99 }
DeMein 0:67a55a82ce06 100
DeMein 0:67a55a82ce06 101 /** mount storage device
DeMein 0:67a55a82ce06 102 *
DeMein 0:67a55a82ce06 103 * syntax: FM[medium]<CR>
DeMein 0:67a55a82ce06 104 * \n [medium]: U, S, L
DeMein 0:67a55a82ce06 105 */
DeMein 0:67a55a82ce06 106 void do_fmount() {
DeMein 0:67a55a82ce06 107 int rslt = 0;
DeMein 0:67a55a82ce06 108
DeMein 0:67a55a82ce06 109 DBG_msg("do_fmount", inbuf);
DeMein 0:67a55a82ce06 110 if (inbuf[2] != NULL) {
DeMein 0:67a55a82ce06 111 switch (inbuf[2]) {
DeMein 0:67a55a82ce06 112 case f_sdcard : DBG_msg("do_fmount", "SD, 1st init");
DeMein 0:67a55a82ce06 113 rslt = sd.disk_initialize(); //initialize file system
DeMein 0:67a55a82ce06 114 DBG_msg("do_fmount", "SD, 2nd init");
DeMein 0:67a55a82ce06 115 rslt = sd.disk_initialize(); //initialize file system
DeMein 0:67a55a82ce06 116 break;
DeMein 0:67a55a82ce06 117 case f_local : // mount local flash, nothing really to do, it is always there
DeMein 0:67a55a82ce06 118 break;
DeMein 0:67a55a82ce06 119 case f_usb : rslt = msc.disk_initialize(); // enumerate USB device
DeMein 0:67a55a82ce06 120 break;
DeMein 0:67a55a82ce06 121 default : do_fdefault(); // command not recognized
DeMein 0:67a55a82ce06 122 break;
DeMein 0:67a55a82ce06 123 }
DeMein 0:67a55a82ce06 124 } else {
DeMein 0:67a55a82ce06 125 do_fdefault();
DeMein 0:67a55a82ce06 126 }
DeMein 0:67a55a82ce06 127 if (rslt != noerror) { // could not mount SD or USB device
DeMein 0:67a55a82ce06 128 DBG_int("device not mounted", rslt);
DeMein 0:67a55a82ce06 129 send_error(err_not_mounted);
DeMein 0:67a55a82ce06 130 }
DeMein 0:67a55a82ce06 131 }
DeMein 0:67a55a82ce06 132
DeMein 0:67a55a82ce06 133 /** unmount storage device
DeMein 0:67a55a82ce06 134 *
DeMein 0:67a55a82ce06 135 * syntax: FU[medium]<CR>
DeMein 0:67a55a82ce06 136 * \n [medium]: U, S, L
DeMein 0:67a55a82ce06 137 */
DeMein 0:67a55a82ce06 138 void do_funmount() {
DeMein 0:67a55a82ce06 139 // unmount storage device
DeMein 0:67a55a82ce06 140 int rslt = 0;
DeMein 0:67a55a82ce06 141 DBG_msg("do_funmount", inbuf);
DeMein 0:67a55a82ce06 142
DeMein 0:67a55a82ce06 143 if (inbuf[2] != NULL) {
DeMein 0:67a55a82ce06 144 switch (inbuf[2]) {
DeMein 0:67a55a82ce06 145 case f_sdcard : rslt = sd.disk_sync();
DeMein 0:67a55a82ce06 146 break;
DeMein 0:67a55a82ce06 147 case f_local : // sync not needed, class does not have this functions
DeMein 0:67a55a82ce06 148 break;
DeMein 0:67a55a82ce06 149 case f_usb : rslt = msc.disk_sync(); // enumerate USB device
DeMein 0:67a55a82ce06 150 break;
DeMein 0:67a55a82ce06 151 default : do_fdefault(); // command not recognized
DeMein 0:67a55a82ce06 152 break;
DeMein 0:67a55a82ce06 153 }
DeMein 0:67a55a82ce06 154 } else {
DeMein 0:67a55a82ce06 155 DBG_msg("do_funmount", "argument error");
DeMein 0:67a55a82ce06 156 do_fdefault();
DeMein 0:67a55a82ce06 157 }
DeMein 0:67a55a82ce06 158 if (rslt != noerror) { // could not mount SD or USB device
DeMein 0:67a55a82ce06 159 // will never see this message
DeMein 0:67a55a82ce06 160 DBG_int("device not unmounted", rslt);
DeMein 0:67a55a82ce06 161 send_error(err_not_mounted);
DeMein 0:67a55a82ce06 162 }
DeMein 0:67a55a82ce06 163 }
DeMein 0:67a55a82ce06 164
DeMein 0:67a55a82ce06 165 /** open file on storage device
DeMein 0:67a55a82ce06 166 *
DeMein 0:67a55a82ce06 167 * syntax: FO [handle] [mode] [medium] [name]
DeMein 0:67a55a82ce06 168 * \n [handle]: 0..9
DeMein 0:67a55a82ce06 169 * \n [mode] : R, W, A
DeMein 0:67a55a82ce06 170 * \n [medium]: U, S, L
DeMein 0:67a55a82ce06 171 * \n [name] : filename in 8.3 format
DeMein 0:67a55a82ce06 172 * \n anything after FO may be replaced by a Parameter when %n is present
DeMein 0:67a55a82ce06 173 */
DeMein 0:67a55a82ce06 174 void do_ffopen() {
DeMein 0:67a55a82ce06 175 int han = 0; // variable for handle
DeMein 0:67a55a82ce06 176 int i = 0;
DeMein 0:67a55a82ce06 177 int pos = 0;
DeMein 0:67a55a82ce06 178 int pnum = 0;
DeMein 0:67a55a82ce06 179 unsigned char c;
DeMein 0:67a55a82ce06 180 char * cstr;
DeMein 0:67a55a82ce06 181
DeMein 0:67a55a82ce06 182 wipesp(inbuf);
DeMein 0:67a55a82ce06 183
DeMein 0:67a55a82ce06 184 DBG_msg("do_ffopen", inbuf);
DeMein 0:67a55a82ce06 185
DeMein 0:67a55a82ce06 186 // check for a % sign in inbuf
DeMein 0:67a55a82ce06 187 pos = 2;
DeMein 0:67a55a82ce06 188 while ((inbuf[pos] != NULL) && (inbuf[pos] != c_percent)) pos++;
DeMein 0:67a55a82ce06 189
DeMein 0:67a55a82ce06 190 if ((inbuf[pos] != NULL) && ((pnum = getpnum(inbuf[pos + 1])) >= 0)) {
DeMein 0:67a55a82ce06 191 // found and valid parameter, now insert
DeMein 0:67a55a82ce06 192 cstr = new char [param[pnum].size() + 1];
DeMein 0:67a55a82ce06 193 strcpy (cstr, param[pnum].c_str());
DeMein 0:67a55a82ce06 194 DBG_msg("param", cstr);
DeMein 0:67a55a82ce06 195 DBG_int("pos", pos);
DeMein 0:67a55a82ce06 196 remchar(inbuf, pos, 2); // remove %n, works better for insert
DeMein 0:67a55a82ce06 197 DBG_msg("do_ffopen", inbuf);
DeMein 0:67a55a82ce06 198 insertstr(inbuf, cstr, pos); // insert
DeMein 0:67a55a82ce06 199 DBG_msg("do_ffopen", inbuf);
DeMein 0:67a55a82ce06 200 delete[] cstr;
DeMein 0:67a55a82ce06 201 }
DeMein 0:67a55a82ce06 202
DeMein 0:67a55a82ce06 203 // check the arguments
DeMein 0:67a55a82ce06 204 c = inbuf[2]; // [handle]
DeMein 0:67a55a82ce06 205 if ((c != NULL) && (c >= '0') && (c <= '9')) {
DeMein 0:67a55a82ce06 206 // [handle] in range
DeMein 0:67a55a82ce06 207 han = c - '0';
DeMein 0:67a55a82ce06 208 } else {
DeMein 0:67a55a82ce06 209 do_fdefault();
DeMein 0:67a55a82ce06 210 return; // terminate this function
DeMein 0:67a55a82ce06 211 }
DeMein 0:67a55a82ce06 212
DeMein 0:67a55a82ce06 213 if (handles[han].fp != NULL) { // file handle in use!
DeMein 0:67a55a82ce06 214 DBG_msg("do_ffopen", "file handle in use");
DeMein 0:67a55a82ce06 215 send_error(err_handle_used);
DeMein 0:67a55a82ce06 216 return;
DeMein 0:67a55a82ce06 217 }
DeMein 0:67a55a82ce06 218
DeMein 0:67a55a82ce06 219 c = inbuf[4]; // [medium]
DeMein 0:67a55a82ce06 220 if (c != NULL) {
DeMein 0:67a55a82ce06 221 switch (c) {
DeMein 0:67a55a82ce06 222 case f_sdcard : handles[han].medium = f_sdcard;
DeMein 0:67a55a82ce06 223 strcpy(handles[han].fsp, fsp_sd);
DeMein 0:67a55a82ce06 224 break;
DeMein 0:67a55a82ce06 225 case f_local : handles[han].medium = f_local;
DeMein 0:67a55a82ce06 226 strcpy(handles[han].fsp, fsp_local);
DeMein 0:67a55a82ce06 227 break;
DeMein 0:67a55a82ce06 228 case f_usb : handles[han].medium = f_usb;
DeMein 0:67a55a82ce06 229 strcpy(handles[han].fsp, fsp_usb);
DeMein 0:67a55a82ce06 230 break;
DeMein 0:67a55a82ce06 231 default : do_fdefault(); // command not recognized
DeMein 0:67a55a82ce06 232 break;
DeMein 0:67a55a82ce06 233 }
DeMein 0:67a55a82ce06 234 } else {
DeMein 0:67a55a82ce06 235 do_fdefault();
DeMein 0:67a55a82ce06 236 return; // terminate this function
DeMein 0:67a55a82ce06 237 }
DeMein 0:67a55a82ce06 238
DeMein 0:67a55a82ce06 239 c = inbuf[3]; // get filemode
DeMein 0:67a55a82ce06 240 if (c != NULL) {
DeMein 0:67a55a82ce06 241 switch (c) {
DeMein 0:67a55a82ce06 242 case 'W' : handles[han].filemode = f_modew;
DeMein 0:67a55a82ce06 243 break;
DeMein 0:67a55a82ce06 244 case 'R' : handles[han].filemode = f_moder;
DeMein 0:67a55a82ce06 245 break;
DeMein 0:67a55a82ce06 246 case 'A' : handles[han].filemode = f_modea;
DeMein 0:67a55a82ce06 247 break;
DeMein 0:67a55a82ce06 248 default : do_fdefault(); // command not recognized
DeMein 0:67a55a82ce06 249 break;
DeMein 0:67a55a82ce06 250 }
DeMein 0:67a55a82ce06 251 } else {
DeMein 0:67a55a82ce06 252 do_fdefault();
DeMein 0:67a55a82ce06 253 return; // terminate this function
DeMein 0:67a55a82ce06 254 }
DeMein 0:67a55a82ce06 255
DeMein 0:67a55a82ce06 256 // now get filename
DeMein 0:67a55a82ce06 257 i = 0;
DeMein 0:67a55a82ce06 258 while ((inbuf[i + 5] != NULL) && (i <= 13)) {
DeMein 0:67a55a82ce06 259 // will not check until end of name, take max 12 chars
DeMein 0:67a55a82ce06 260 handles[han].filename[i] = inbuf[i + 5];
DeMein 0:67a55a82ce06 261 i++;
DeMein 0:67a55a82ce06 262 handles[han].filename[i] = NULL; // guarantee null terminated string
DeMein 0:67a55a82ce06 263 }
DeMein 0:67a55a82ce06 264
DeMein 0:67a55a82ce06 265 // create full pathname
DeMein 0:67a55a82ce06 266 strcpy(handles[han].fullpath, handles[han].fsp);
DeMein 0:67a55a82ce06 267 strcat(handles[han].fullpath, handles[han].filename);
DeMein 0:67a55a82ce06 268 char tmp[5];
DeMein 0:67a55a82ce06 269 sprintf(tmp,"%c", handles[han].filemode);
DeMein 0:67a55a82ce06 270
DeMein 0:67a55a82ce06 271 DBG_msg("filename:", handles[han].filename);
DeMein 0:67a55a82ce06 272 DBG_msg("path :", handles[han].fullpath);
DeMein 0:67a55a82ce06 273 DBG_int("handle# :", han);
DeMein 0:67a55a82ce06 274 DBG_chr("mode :", handles[han].filemode);
DeMein 0:67a55a82ce06 275 DBG_chr("medium :", handles[han].medium);
DeMein 0:67a55a82ce06 276
DeMein 0:67a55a82ce06 277 // now open file
DeMein 0:67a55a82ce06 278 handles[han].fp = fopen(handles[han].fullpath,tmp);
DeMein 0:67a55a82ce06 279 if (handles[han].fp != NULL) {
DeMein 0:67a55a82ce06 280 DBG_msg("do_ffopen", "file opened");
DeMein 0:67a55a82ce06 281 } else {
DeMein 0:67a55a82ce06 282 DBG_msg("do_ffopen", "file NOT opened");
DeMein 0:67a55a82ce06 283 send_error(err_filenotopen);
DeMein 0:67a55a82ce06 284 }
DeMein 0:67a55a82ce06 285 }
DeMein 0:67a55a82ce06 286
DeMein 0:67a55a82ce06 287 /** read file contents
DeMein 0:67a55a82ce06 288 *
DeMein 0:67a55a82ce06 289 * syntax: FR [handle] [value]
DeMein 0:67a55a82ce06 290 * \n [handle]: 0..9
DeMein 0:67a55a82ce06 291 * \n [value] : number of byte to read
DeMein 0:67a55a82ce06 292 * \n when [value]=0 or omitted will read until <EOF>,
DeMein 0:67a55a82ce06 293 * reading can be interrupted by sending >F or >I
DeMein 0:67a55a82ce06 294 */
DeMein 0:67a55a82ce06 295 void do_ffread() {
DeMein 0:67a55a82ce06 296 long int numbytes = 0;
DeMein 0:67a55a82ce06 297 long int count = 0;
DeMein 0:67a55a82ce06 298 int i, m;
DeMein 0:67a55a82ce06 299 int han;
DeMein 0:67a55a82ce06 300 bool go = true;
DeMein 0:67a55a82ce06 301 bool stopread = false;
DeMein 0:67a55a82ce06 302
DeMein 0:67a55a82ce06 303 DBG_msg("do_ffread", inbuf);
DeMein 0:67a55a82ce06 304
DeMein 0:67a55a82ce06 305 rx_max = 0;
DeMein 0:67a55a82ce06 306 tx_max = 0;
DeMein 0:67a55a82ce06 307
DeMein 0:67a55a82ce06 308 int c = inbuf[2]; // [handle]
DeMein 0:67a55a82ce06 309 if ((c != NULL) && (c >= '0') && (c <= '9')) {
DeMein 0:67a55a82ce06 310 // [handle] in range
DeMein 0:67a55a82ce06 311 han = c - '0';
DeMein 0:67a55a82ce06 312 } else {
DeMein 0:67a55a82ce06 313 do_fdefault();
DeMein 0:67a55a82ce06 314 return; // exit with error
DeMein 0:67a55a82ce06 315 }
DeMein 0:67a55a82ce06 316 DBG_int("handle :", han);
DeMein 0:67a55a82ce06 317 if (handles[han].fp == NULL) { // file handle not in use!
DeMein 0:67a55a82ce06 318 DBG_msg("do_ffread", "no valid file handle");
DeMein 0:67a55a82ce06 319 send_error(err_no_handle);
DeMein 0:67a55a82ce06 320 return;
DeMein 0:67a55a82ce06 321 }
DeMein 0:67a55a82ce06 322
DeMein 0:67a55a82ce06 323 count = 0;
DeMein 0:67a55a82ce06 324 // next chars on the commandline is the number of bytes to read
DeMein 0:67a55a82ce06 325 if (inbuf[3] == NULL) {
DeMein 0:67a55a82ce06 326 // no value on the command line
DeMein 0:67a55a82ce06 327 numbytes = 0;
DeMein 0:67a55a82ce06 328 } else {
DeMein 0:67a55a82ce06 329 // now process line
DeMein 0:67a55a82ce06 330 for (i = 3; ((inbuf[i] >='0') && (inbuf[i] <= '9')); i++ ) {
DeMein 0:67a55a82ce06 331 numbytes = 10 * numbytes + (inbuf[i] - '0');
DeMein 0:67a55a82ce06 332 }
DeMein 0:67a55a82ce06 333 }
DeMein 0:67a55a82ce06 334 DBG_int("do_ffread bytes:", numbytes);
DeMein 0:67a55a82ce06 335
DeMein 0:67a55a82ce06 336 // now ready to really do the read
DeMein 0:67a55a82ce06 337 // must monitor input buffer to check if we need to stop!
DeMein 0:67a55a82ce06 338 while (go) {
DeMein 0:67a55a82ce06 339 m = mldl.rx_use();
DeMein 0:67a55a82ce06 340 if (m > rx_max) rx_max = m;
DeMein 0:67a55a82ce06 341 m = mldl.tx_use();
DeMein 0:67a55a82ce06 342 if (m > tx_max) tx_max = m;
DeMein 0:67a55a82ce06 343
DeMein 0:67a55a82ce06 344 c = getc(handles[han].fp); // read one byte
DeMein 0:67a55a82ce06 345 // remove comment below to list all bytes read
DeMein 0:67a55a82ce06 346 DBG_chr("do_ffread: ", c);
DeMein 0:67a55a82ce06 347 if (c == EOF) {
DeMein 0:67a55a82ce06 348 // EOF found, send <EOF> sequence
DeMein 0:67a55a82ce06 349 mldl.tx_add(c_escape);
DeMein 0:67a55a82ce06 350 mldl.tx_add(c_eof);
DeMein 0:67a55a82ce06 351 DBG_int("do_ffread: EOF at byte ", count);
DeMein 0:67a55a82ce06 352 } else {
DeMein 0:67a55a82ce06 353 // no problem, just send data
DeMein 0:67a55a82ce06 354 mldl.tx_addp(c);
DeMein 0:67a55a82ce06 355 count++; // increase counter
DeMein 0:67a55a82ce06 356 }
DeMein 0:67a55a82ce06 357 // now check if we have to stop?
DeMein 0:67a55a82ce06 358 if (!mldl.rx_empty()) {
DeMein 0:67a55a82ce06 359 stopread = (mldl.rxx_read(data_mode) < 0); // intentional stop of read
DeMein 0:67a55a82ce06 360 }
DeMein 0:67a55a82ce06 361 go = !((c == EOF) || (count == numbytes) || stopread);
DeMein 0:67a55a82ce06 362 }
DeMein 0:67a55a82ce06 363
DeMein 0:67a55a82ce06 364 // in case the complete file is read, now wait until buffer is emptied
DeMein 0:67a55a82ce06 365 while (!stopread && !mldl.tx_empty()) {
DeMein 0:67a55a82ce06 366 // keep checking for EOF
DeMein 0:67a55a82ce06 367 if (!mldl.rx_empty()) {
DeMein 0:67a55a82ce06 368 stopread = (mldl.rxx_read(data_mode) < 0);
DeMein 0:67a55a82ce06 369 }
DeMein 0:67a55a82ce06 370 }
DeMein 0:67a55a82ce06 371
DeMein 0:67a55a82ce06 372 if (stopread) {
DeMein 0:67a55a82ce06 373 DBG_msg("do_ffread", "forced stop read received");
DeMein 0:67a55a82ce06 374 mldl.flush_tx(); // empty transmit buffer
DeMein 0:67a55a82ce06 375 }
DeMein 0:67a55a82ce06 376
DeMein 0:67a55a82ce06 377 DBG_int("do_ffread: end read at byte ", count);
DeMein 0:67a55a82ce06 378 DBG_int("rx_max", rx_max);
DeMein 0:67a55a82ce06 379 DBG_int("tx_max", tx_max);
DeMein 0:67a55a82ce06 380 }
DeMein 0:67a55a82ce06 381
DeMein 0:67a55a82ce06 382 /** write to file
DeMein 0:67a55a82ce06 383 *
DeMein 0:67a55a82ce06 384 * syntax: FW [handle]
DeMein 0:67a55a82ce06 385 * \n [handle]: 0..9
DeMein 0:67a55a82ce06 386 * \ wait for prompt, then send data to be written.
DeMein 0:67a55a82ce06 387 * End writing by sending >F
DeMein 0:67a55a82ce06 388 */
DeMein 0:67a55a82ce06 389 void do_ffwrite() {
DeMein 0:67a55a82ce06 390 int han, m;
DeMein 0:67a55a82ce06 391 bool go = true;
DeMein 0:67a55a82ce06 392 int count = 0;
DeMein 0:67a55a82ce06 393
DeMein 0:67a55a82ce06 394 DBG_msg("do_ffwrite", inbuf);
DeMein 0:67a55a82ce06 395 int c = inbuf[2]; // [handle]
DeMein 0:67a55a82ce06 396 if ((c != NULL) && (c >= '0') && (c <= '9')) {
DeMein 0:67a55a82ce06 397 // [handle] in range
DeMein 0:67a55a82ce06 398 han = c - '0';
DeMein 0:67a55a82ce06 399 } else {
DeMein 0:67a55a82ce06 400 do_fdefault();
DeMein 0:67a55a82ce06 401 return; // check how to exit with error
DeMein 0:67a55a82ce06 402 }
DeMein 0:67a55a82ce06 403 DBG_int("handle :", han);
DeMein 0:67a55a82ce06 404 if (handles[han].fp == NULL) { // file handle not in use!
DeMein 0:67a55a82ce06 405 DBG_msg("do_ffwrite", "no valid file handle");
DeMein 0:67a55a82ce06 406 send_error(err_no_handle);
DeMein 0:67a55a82ce06 407 return;
DeMein 0:67a55a82ce06 408 }
DeMein 0:67a55a82ce06 409 send_prompt(); // now send a prompt and we are ready to go
DeMein 0:67a55a82ce06 410 while (go) { // as long as we can continue
DeMein 0:67a55a82ce06 411 m = mldl.rx_use();
DeMein 0:67a55a82ce06 412 if (m > rx_max) rx_max = m;
DeMein 0:67a55a82ce06 413 m = mldl.tx_use();
DeMein 0:67a55a82ce06 414 if (m > tx_max) tx_max = m;
DeMein 0:67a55a82ce06 415 c = mldl.rxx_read(data_mode); // get data
DeMein 0:67a55a82ce06 416 if ((c == -1) || (c == -2)) go = false; // <EOF> or interrupt
DeMein 0:67a55a82ce06 417 if (go) {
DeMein 0:67a55a82ce06 418 // remove comment below to list all bytes written
DeMein 0:67a55a82ce06 419 DBG_chr("fwrite", c);
DeMein 0:67a55a82ce06 420 count++;
DeMein 0:67a55a82ce06 421
DeMein 0:67a55a82ce06 422 fputc(c, handles[han].fp);
DeMein 0:67a55a82ce06 423 } else {
DeMein 0:67a55a82ce06 424 DBG_int("fwrite: ", c);
DeMein 0:67a55a82ce06 425 }
DeMein 0:67a55a82ce06 426 }
DeMein 0:67a55a82ce06 427 DBG_int("fwrite written", count);
DeMein 0:67a55a82ce06 428 DBG_int("rx_max", rx_max);
DeMein 0:67a55a82ce06 429 DBG_int("tx_max", tx_max);
DeMein 0:67a55a82ce06 430 }
DeMein 0:67a55a82ce06 431
DeMein 0:67a55a82ce06 432 /** close file
DeMein 0:67a55a82ce06 433 *
DeMein 0:67a55a82ce06 434 * syntax: FC [handle]
DeMein 0:67a55a82ce06 435 * \n [handle]: 0..9
DeMein 0:67a55a82ce06 436 */
DeMein 0:67a55a82ce06 437 void do_ffclose() {
DeMein 0:67a55a82ce06 438 int han = 0;
DeMein 0:67a55a82ce06 439 int rslt = 0;
DeMein 0:67a55a82ce06 440 DBG_msg("do_ffclose", inbuf);
DeMein 0:67a55a82ce06 441
DeMein 0:67a55a82ce06 442 char c = inbuf[2]; // file handle should be here
DeMein 0:67a55a82ce06 443 if ((c != NULL) && (c >= '0') && (c <= '9')) {
DeMein 0:67a55a82ce06 444 // [handle] in range
DeMein 0:67a55a82ce06 445 han = c - '0';
DeMein 0:67a55a82ce06 446 } else {
DeMein 0:67a55a82ce06 447 do_fdefault();
DeMein 0:67a55a82ce06 448 return; // check how to exit with error
DeMein 0:67a55a82ce06 449 }
DeMein 0:67a55a82ce06 450 if (handles[han].fp == NULL) { // file handle not in use!
DeMein 0:67a55a82ce06 451 DBG_msg("do_ffclose", "no valid file handle");
DeMein 0:67a55a82ce06 452 send_error(err_no_handle);
DeMein 0:67a55a82ce06 453 return;
DeMein 0:67a55a82ce06 454 }
DeMein 0:67a55a82ce06 455 rslt = fclose(handles[han].fp);
DeMein 0:67a55a82ce06 456 handles[han].fp = NULL;
DeMein 0:67a55a82ce06 457 DBG_int("do_ffclose result", rslt);
DeMein 0:67a55a82ce06 458 }
DeMein 0:67a55a82ce06 459
DeMein 0:67a55a82ce06 460 /** seek to file position
DeMein 0:67a55a82ce06 461 *
DeMein 0:67a55a82ce06 462 * syntax: FS [handle] [value]
DeMein 0:67a55a82ce06 463 * \n [handle]: 0..9
DeMein 0:67a55a82ce06 464 * \n [value] : new position
DeMein 0:67a55a82ce06 465 * \n if [value] is ommitted, will assume 0,
DeMein 0:67a55a82ce06 466 * will always seek relative to the start of the file
DeMein 0:67a55a82ce06 467 */
DeMein 0:67a55a82ce06 468 void do_ffseek() {
DeMein 0:67a55a82ce06 469 DBG_msg("do_ffseek", inbuf);
DeMein 0:67a55a82ce06 470
DeMein 0:67a55a82ce06 471 long int position = 0; // max value is 2147483647
DeMein 0:67a55a82ce06 472 int i;
DeMein 0:67a55a82ce06 473 int han;
DeMein 0:67a55a82ce06 474
DeMein 0:67a55a82ce06 475 int c = inbuf[2]; // [handle]
DeMein 0:67a55a82ce06 476 if ((c != NULL) && (c >= '0') && (c <= '9')) {
DeMein 0:67a55a82ce06 477 // [handle] in range
DeMein 0:67a55a82ce06 478 han = c - '0';
DeMein 0:67a55a82ce06 479 } else {
DeMein 0:67a55a82ce06 480 do_fdefault();
DeMein 0:67a55a82ce06 481 return; // check how to exit with error
DeMein 0:67a55a82ce06 482 }
DeMein 0:67a55a82ce06 483 DBG_int("handle :", han);
DeMein 0:67a55a82ce06 484 if (handles[han].fp == NULL) { // file handle not in use!
DeMein 0:67a55a82ce06 485 DBG_msg("do_ffseek", "no valid file handle");
DeMein 0:67a55a82ce06 486 send_error(err_no_handle);
DeMein 0:67a55a82ce06 487 return;
DeMein 0:67a55a82ce06 488 }
DeMein 0:67a55a82ce06 489
DeMein 0:67a55a82ce06 490 // next chars on the commandline is the number of bytes to read
DeMein 0:67a55a82ce06 491 if (inbuf[3] == NULL) {
DeMein 0:67a55a82ce06 492 // no value on the command line
DeMein 0:67a55a82ce06 493 position = 0;
DeMein 0:67a55a82ce06 494 } else {
DeMein 0:67a55a82ce06 495 // now process line
DeMein 0:67a55a82ce06 496 for (i = 3; ((inbuf[i] >='0') && (inbuf[i] <= '9')); i++ ) {
DeMein 0:67a55a82ce06 497 position = 10 * position + (inbuf[i] - '0');
DeMein 0:67a55a82ce06 498 }
DeMein 0:67a55a82ce06 499 }
DeMein 0:67a55a82ce06 500
DeMein 0:67a55a82ce06 501 if (fseek(handles[han].fp, position, SEEK_SET) < 0) {
DeMein 0:67a55a82ce06 502 // error in fseek
DeMein 0:67a55a82ce06 503 send_error(err_seek);
DeMein 0:67a55a82ce06 504 return;
DeMein 0:67a55a82ce06 505 }
DeMein 0:67a55a82ce06 506 }
DeMein 0:67a55a82ce06 507
DeMein 0:67a55a82ce06 508 /** flush file
DeMein 0:67a55a82ce06 509 *
DeMein 0:67a55a82ce06 510 * syntax: FF [handle]
DeMein 0:67a55a82ce06 511 * \n [handle]: 0..9
DeMein 0:67a55a82ce06 512 * \n fflush is not implemented in the file systems
DeMein 0:67a55a82ce06 513 */
DeMein 0:67a55a82ce06 514 void do_fflush() {
DeMein 0:67a55a82ce06 515 DBG_msg("do_fflush", inbuf);
DeMein 0:67a55a82ce06 516 }
DeMein 0:67a55a82ce06 517
DeMein 0:67a55a82ce06 518
DeMein 0:67a55a82ce06 519 /** open directory and list first entry
DeMein 0:67a55a82ce06 520 *
DeMein 0:67a55a82ce06 521 * syntax: FD [medium]
DeMein 0:67a55a82ce06 522 * \n [medium]: U, S, L
DeMein 0:67a55a82ce06 523 * \n returns the first directory item,
DeMein 0:67a55a82ce06 524 * subdirectories are not yet supported,
DeMein 0:67a55a82ce06 525 * if the listing is empty >F is returned
DeMein 0:67a55a82ce06 526 */
DeMein 0:67a55a82ce06 527 void do_fdir() {
DeMein 0:67a55a82ce06 528 FILINFO finfo;
DeMein 0:67a55a82ce06 529 FRESULT res ;
DeMein 0:67a55a82ce06 530 struct dirent *p;
DeMein 0:67a55a82ce06 531 char tmp[25];
DeMein 0:67a55a82ce06 532
DeMein 0:67a55a82ce06 533 DBG_msg("do_ffdir", inbuf);
DeMein 0:67a55a82ce06 534
DeMein 0:67a55a82ce06 535 if (inbuf[2] != NULL) {
DeMein 0:67a55a82ce06 536 switch (inbuf[2]) {
DeMein 0:67a55a82ce06 537 case f_sdcard : res = f_opendir(&dj, "0:/");
DeMein 0:67a55a82ce06 538 odirectory = f_sdcard;
DeMein 0:67a55a82ce06 539 break;
DeMein 0:67a55a82ce06 540 case f_local : d = opendir(rt_local);
DeMein 0:67a55a82ce06 541 odirectory = f_local;
DeMein 0:67a55a82ce06 542 break;
DeMein 0:67a55a82ce06 543 case f_usb : res = f_opendir(&dj, "1:/");
DeMein 0:67a55a82ce06 544 odirectory = f_usb;
DeMein 0:67a55a82ce06 545 break;
DeMein 0:67a55a82ce06 546 default : do_fdefault(); // command not recognized
DeMein 0:67a55a82ce06 547 break;
DeMein 0:67a55a82ce06 548 }
DeMein 0:67a55a82ce06 549 } else {
DeMein 0:67a55a82ce06 550 do_fdefault();
DeMein 0:67a55a82ce06 551 return;
DeMein 0:67a55a82ce06 552 }
DeMein 0:67a55a82ce06 553
DeMein 0:67a55a82ce06 554 if (odirectory == f_local) {
DeMein 0:67a55a82ce06 555 // get listing from local flash
DeMein 0:67a55a82ce06 556 if (d != NULL) {
DeMein 0:67a55a82ce06 557 if ((p = readdir(d)) != NULL) {
DeMein 0:67a55a82ce06 558 sprintf(tmp,"%s", p->d_name);
DeMein 0:67a55a82ce06 559 DBG_msg("do_ffdir", tmp);
DeMein 0:67a55a82ce06 560 upstring(tmp);
DeMein 0:67a55a82ce06 561 mldl.tx_string(tmp);
DeMein 0:67a55a82ce06 562 } else {
DeMein 0:67a55a82ce06 563 DBG_msg("do_ffdir", "Last directory entry");
DeMein 0:67a55a82ce06 564 mldl.tx_add(c_escape); // send <EOF> sequence
DeMein 0:67a55a82ce06 565 mldl.tx_add(c_eof);
DeMein 0:67a55a82ce06 566 }
DeMein 0:67a55a82ce06 567 } else {
DeMein 0:67a55a82ce06 568 // could not open directory
DeMein 0:67a55a82ce06 569 DBG_msg("do_ffdir", "Could not open directory");
DeMein 0:67a55a82ce06 570 send_error(err_directory);
DeMein 0:67a55a82ce06 571 }
DeMein 0:67a55a82ce06 572 } else {
DeMein 0:67a55a82ce06 573 // get listing from USB or SD card
DeMein 0:67a55a82ce06 574
DeMein 0:67a55a82ce06 575 /* File attribute bits for directory entry */
DeMein 0:67a55a82ce06 576 // #define AM_RDO 0x01 /* Read only */
DeMein 0:67a55a82ce06 577 // #define AM_HID 0x02 /* Hidden */
DeMein 0:67a55a82ce06 578 // #define AM_SYS 0x04 /* System */
DeMein 0:67a55a82ce06 579 // #define AM_VOL 0x08 /* Volume label */
DeMein 0:67a55a82ce06 580 // #define AM_LFN 0x0F /* LFN entry */
DeMein 0:67a55a82ce06 581 // #define AM_DIR 0x10 /* Directory */
DeMein 0:67a55a82ce06 582 // #define AM_ARC 0x20 /* Archive */
DeMein 0:67a55a82ce06 583
DeMein 0:67a55a82ce06 584 if (res == FR_OK) {
DeMein 0:67a55a82ce06 585 res = f_readdir(&dj, &finfo);
DeMein 0:67a55a82ce06 586 if ((res == FR_OK) && finfo.fname[0] != 0) {
DeMein 0:67a55a82ce06 587 if ((finfo.fattrib & AM_DIR) == AM_DIR) {
DeMein 0:67a55a82ce06 588 // file is a directory entry
DeMein 0:67a55a82ce06 589 sprintf(tmp,"./%s %d", finfo.fname, finfo.fsize);
DeMein 0:67a55a82ce06 590 } else {
DeMein 0:67a55a82ce06 591 sprintf(tmp,"%s %d", finfo.fname, finfo.fsize);
DeMein 0:67a55a82ce06 592 }
DeMein 0:67a55a82ce06 593 DBG_msg("ffdir", tmp);
DeMein 0:67a55a82ce06 594 upstring(tmp);
DeMein 0:67a55a82ce06 595 mldl.tx_string(tmp);
DeMein 0:67a55a82ce06 596 } else {
DeMein 0:67a55a82ce06 597 DBG_msg("do_ffdir", "Last directory entry");
DeMein 0:67a55a82ce06 598 mldl.tx_add(c_escape); // send <EOF> sequence
DeMein 0:67a55a82ce06 599 mldl.tx_add(c_eof);
DeMein 0:67a55a82ce06 600 }
DeMein 0:67a55a82ce06 601 } else {
DeMein 0:67a55a82ce06 602 // could not open directory
DeMein 0:67a55a82ce06 603 DBG_msg("do_ffdir", "Could not open directory");
DeMein 0:67a55a82ce06 604 send_error(err_directory);
DeMein 0:67a55a82ce06 605 }
DeMein 0:67a55a82ce06 606 }
DeMein 0:67a55a82ce06 607 }
DeMein 0:67a55a82ce06 608
DeMein 0:67a55a82ce06 609 /** lists the next directory item
DeMein 0:67a55a82ce06 610 *
DeMein 0:67a55a82ce06 611 * syntax: FN [medium]
DeMein 0:67a55a82ce06 612 * \n [medium]: U, S, L
DeMein 0:67a55a82ce06 613 * returns the next directory item, must be preceded by a FD call.
DeMein 0:67a55a82ce06 614 * Subdirectories are not yet supported,
DeMein 0:67a55a82ce06 615 * after the last item >F is returned
DeMein 0:67a55a82ce06 616 */
DeMein 0:67a55a82ce06 617 void do_fndir() {
DeMein 0:67a55a82ce06 618 FILINFO finfo;
DeMein 0:67a55a82ce06 619 FRESULT res ;
DeMein 0:67a55a82ce06 620 struct dirent *p;
DeMein 0:67a55a82ce06 621 char tmp[25];
DeMein 0:67a55a82ce06 622
DeMein 0:67a55a82ce06 623 DBG_msg("do_fndir", inbuf);
DeMein 0:67a55a82ce06 624
DeMein 0:67a55a82ce06 625 if (odirectory == f_local) {
DeMein 0:67a55a82ce06 626 // get listing from local flash
DeMein 0:67a55a82ce06 627 if (d != NULL) {
DeMein 0:67a55a82ce06 628 if ((p = readdir(d)) != NULL) {
DeMein 0:67a55a82ce06 629 sprintf(tmp,"%s", p->d_name);
DeMein 0:67a55a82ce06 630 DBG_msg("ffdir", tmp);
DeMein 0:67a55a82ce06 631 upstring(tmp);
DeMein 0:67a55a82ce06 632 mldl.tx_string(tmp);
DeMein 0:67a55a82ce06 633 } else {
DeMein 0:67a55a82ce06 634 DBG_msg("ffdir", "Last directory entry");
DeMein 0:67a55a82ce06 635 mldl.tx_add(c_escape); // send <EOF> sequence
DeMein 0:67a55a82ce06 636 mldl.tx_add(c_eof);
DeMein 0:67a55a82ce06 637 }
DeMein 0:67a55a82ce06 638 }
DeMein 0:67a55a82ce06 639 } else {
DeMein 0:67a55a82ce06 640 // get listing from USB or SD card
DeMein 0:67a55a82ce06 641 res = f_readdir(&dj, &finfo);
DeMein 0:67a55a82ce06 642 if ((res == FR_OK) && finfo.fname[0] != 0) {
DeMein 0:67a55a82ce06 643 if ((finfo.fattrib & AM_DIR) == AM_DIR) {
DeMein 0:67a55a82ce06 644 // file is a directory entry
DeMein 0:67a55a82ce06 645 sprintf(tmp,"./%s %d", finfo.fname, finfo.fsize);
DeMein 0:67a55a82ce06 646 } else {
DeMein 0:67a55a82ce06 647 sprintf(tmp,"%s %d", finfo.fname, finfo.fsize);
DeMein 0:67a55a82ce06 648 }
DeMein 0:67a55a82ce06 649 DBG_msg("do_fndir", tmp);
DeMein 0:67a55a82ce06 650 upstring(tmp);
DeMein 0:67a55a82ce06 651 mldl.tx_string(tmp);
DeMein 0:67a55a82ce06 652 } else {
DeMein 0:67a55a82ce06 653 DBG_msg("do_fndir", "Last directory entry");
DeMein 0:67a55a82ce06 654 mldl.tx_add(c_escape); // send <EOF> sequence
DeMein 0:67a55a82ce06 655 mldl.tx_add(c_eof);
DeMein 0:67a55a82ce06 656 }
DeMein 0:67a55a82ce06 657 }
DeMein 0:67a55a82ce06 658 }
DeMein 0:67a55a82ce06 659
DeMein 0:67a55a82ce06 660 /** returns the value of the current file pointer
DeMein 0:67a55a82ce06 661 *
DeMein 0:67a55a82ce06 662 * syntax: FT [handle]
DeMein 0:67a55a82ce06 663 * \n [handle]: 0..9
DeMein 0:67a55a82ce06 664 * returns the value of the file pointer for the open file with the
DeMein 0:67a55a82ce06 665 * given handle.
DeMein 0:67a55a82ce06 666 */
DeMein 0:67a55a82ce06 667 void do_fftell() {
DeMein 0:67a55a82ce06 668 int han = 0;
DeMein 0:67a55a82ce06 669 int rslt = 0;
DeMein 0:67a55a82ce06 670 char tmp[25];
DeMein 0:67a55a82ce06 671
DeMein 0:67a55a82ce06 672 DBG_msg("do_ftell", inbuf);
DeMein 0:67a55a82ce06 673
DeMein 0:67a55a82ce06 674 char c = inbuf[2]; // file handle should be here
DeMein 0:67a55a82ce06 675 if ((c != NULL) && (c >= '0') && (c <= '9')) {
DeMein 0:67a55a82ce06 676 // [handle] in range
DeMein 0:67a55a82ce06 677 han = c - '0';
DeMein 0:67a55a82ce06 678 } else {
DeMein 0:67a55a82ce06 679 do_fdefault();
DeMein 0:67a55a82ce06 680 return; // check how to exit with error
DeMein 0:67a55a82ce06 681 }
DeMein 0:67a55a82ce06 682 if (handles[han].fp == NULL) { // file handle not in use!
DeMein 0:67a55a82ce06 683 DBG_msg("do_ffclose", "no valid file handle");
DeMein 0:67a55a82ce06 684 send_error(err_no_handle);
DeMein 0:67a55a82ce06 685 return;
DeMein 0:67a55a82ce06 686 }
DeMein 0:67a55a82ce06 687 rslt = ftell(handles[han].fp);
DeMein 0:67a55a82ce06 688 sprintf(tmp,"%d", rslt);
DeMein 0:67a55a82ce06 689 mldl.tx_string(tmp);
DeMein 0:67a55a82ce06 690
DeMein 0:67a55a82ce06 691 DBG_int("do_ftell result", rslt);
DeMein 0:67a55a82ce06 692 }
DeMein 0:67a55a82ce06 693
DeMein 0:67a55a82ce06 694 /** returns the size of a file
DeMein 0:67a55a82ce06 695 *
DeMein 0:67a55a82ce06 696 * syntax: FZ [medium] [name]
DeMein 0:67a55a82ce06 697 * \n [medium]: S, L or U
DeMein 0:67a55a82ce06 698 * \n [name]: valid 8.3 filename
DeMein 0:67a55a82ce06 699 * \n argument may contain %n for replacement by the Parameter n
DeMein 0:67a55a82ce06 700 * returns the size of a file. This function will open and close the file!
DeMein 0:67a55a82ce06 701 */
DeMein 0:67a55a82ce06 702 void do_ffsize() {
DeMein 0:67a55a82ce06 703 int i = 0;
DeMein 0:67a55a82ce06 704 int pos = 0;
DeMein 0:67a55a82ce06 705 int pnum = 0;
DeMein 0:67a55a82ce06 706 int size = 0;
DeMein 0:67a55a82ce06 707 char filename[20];
DeMein 0:67a55a82ce06 708 char fullpath[50];
DeMein 0:67a55a82ce06 709 char tmp[25];
DeMein 0:67a55a82ce06 710 unsigned char c;
DeMein 0:67a55a82ce06 711 char * cstr;
DeMein 0:67a55a82ce06 712
DeMein 0:67a55a82ce06 713 wipesp(inbuf);
DeMein 0:67a55a82ce06 714
DeMein 0:67a55a82ce06 715 DBG_msg("do_fsize", inbuf);
DeMein 0:67a55a82ce06 716
DeMein 0:67a55a82ce06 717 // check for a % sign in inbuf
DeMein 0:67a55a82ce06 718 pos = 2;
DeMein 0:67a55a82ce06 719 while ((inbuf[pos] != NULL) && (inbuf[pos] != c_percent)) pos++;
DeMein 0:67a55a82ce06 720
DeMein 0:67a55a82ce06 721 if ((inbuf[pos] != NULL) && ((pnum = getpnum(inbuf[pos + 1])) >= 0)) {
DeMein 0:67a55a82ce06 722 // found and valid parameter, now insert
DeMein 0:67a55a82ce06 723 cstr = new char [param[pnum].size() + 1];
DeMein 0:67a55a82ce06 724 strcpy (cstr, param[pnum].c_str());
DeMein 0:67a55a82ce06 725 DBG_msg("param", cstr);
DeMein 0:67a55a82ce06 726 DBG_int("pos", pos);
DeMein 0:67a55a82ce06 727 remchar(inbuf, pos, 2); // remove %n, works better for insert
DeMein 0:67a55a82ce06 728 DBG_msg("do_fsize", inbuf);
DeMein 0:67a55a82ce06 729 insertstr(inbuf, cstr, pos); // insert
DeMein 0:67a55a82ce06 730 DBG_msg("do_fsize", inbuf);
DeMein 0:67a55a82ce06 731 delete[] cstr;
DeMein 0:67a55a82ce06 732 }
DeMein 0:67a55a82ce06 733
DeMein 0:67a55a82ce06 734 c = inbuf[2]; // [medium]
DeMein 0:67a55a82ce06 735 if (c != NULL) {
DeMein 0:67a55a82ce06 736 switch (c) {
DeMein 0:67a55a82ce06 737 case f_sdcard : strcpy(fullpath, fsp_sd);
DeMein 0:67a55a82ce06 738 break;
DeMein 0:67a55a82ce06 739 case f_local : strcpy(fullpath, fsp_local);
DeMein 0:67a55a82ce06 740 break;
DeMein 0:67a55a82ce06 741 case f_usb : strcpy(fullpath, fsp_usb);
DeMein 0:67a55a82ce06 742 break;
DeMein 0:67a55a82ce06 743 default : do_fdefault(); // command not recognized
DeMein 0:67a55a82ce06 744 break;
DeMein 0:67a55a82ce06 745 }
DeMein 0:67a55a82ce06 746 } else {
DeMein 0:67a55a82ce06 747 do_fdefault();
DeMein 0:67a55a82ce06 748 return; // terminate this function
DeMein 0:67a55a82ce06 749 }
DeMein 0:67a55a82ce06 750
DeMein 0:67a55a82ce06 751 // now get filename
DeMein 0:67a55a82ce06 752 i = 0;
DeMein 0:67a55a82ce06 753 while ((inbuf[i + 3] != NULL) && (i <= 13)) {
DeMein 0:67a55a82ce06 754 // will not check until end of name, take max 13 chars
DeMein 0:67a55a82ce06 755 filename[i] = inbuf[i + 3];
DeMein 0:67a55a82ce06 756 i++;
DeMein 0:67a55a82ce06 757 filename[i] = NULL; // ensure null terminated string
DeMein 0:67a55a82ce06 758 }
DeMein 0:67a55a82ce06 759
DeMein 0:67a55a82ce06 760 // create full pathname
DeMein 0:67a55a82ce06 761 strcat(fullpath, filename);
DeMein 0:67a55a82ce06 762
DeMein 0:67a55a82ce06 763 DBG_msg("filename", fullpath);
DeMein 0:67a55a82ce06 764
DeMein 0:67a55a82ce06 765 // now open file
DeMein 0:67a55a82ce06 766 FILE *fp = fopen(fullpath, "r");
DeMein 0:67a55a82ce06 767 if (fp != NULL) {
DeMein 0:67a55a82ce06 768 DBG_msg("do_fsize", "file opened");
DeMein 0:67a55a82ce06 769 } else {
DeMein 0:67a55a82ce06 770 DBG_msg("do_fsize", "file NOT opened");
DeMein 0:67a55a82ce06 771 send_error(err_filenotopen);
DeMein 0:67a55a82ce06 772 return; // and get out
DeMein 0:67a55a82ce06 773 }
DeMein 0:67a55a82ce06 774
DeMein 0:67a55a82ce06 775 fseek(fp, 0L, SEEK_END); // seek to end
DeMein 0:67a55a82ce06 776 size = ftell(fp); // get size
DeMein 0:67a55a82ce06 777 fclose(fp); // close file
DeMein 0:67a55a82ce06 778 sprintf(tmp,"%d", size);
DeMein 0:67a55a82ce06 779 mldl.tx_string(tmp);
DeMein 0:67a55a82ce06 780
DeMein 0:67a55a82ce06 781 DBG_int("do_fsize result", size);
DeMein 0:67a55a82ce06 782
DeMein 0:67a55a82ce06 783 }
DeMein 0:67a55a82ce06 784
DeMein 0:67a55a82ce06 785 /** send error message, command not recognized,
DeMein 0:67a55a82ce06 786 */
DeMein 0:67a55a82ce06 787 void do_fdefault() {
DeMein 0:67a55a82ce06 788 // get version string
DeMein 0:67a55a82ce06 789 DBG_msg("do_fdefault", "unsupported command");
DeMein 0:67a55a82ce06 790 send_error(err_novalidcommand);
DeMein 0:67a55a82ce06 791 }