268 lines
7.2 KiB
C++
268 lines
7.2 KiB
C++
/**
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* Copyright (c) 2011-2018 Bill Greiman
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* This file is part of the SdFat library for SD memory cards.
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*
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* MIT License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <math.h>
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#include "FatFile.h"
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#include "FmtNumber.h"
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//------------------------------------------------------------------------------
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// print uint8_t with width 2
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static void print2u(print_t* pr, uint8_t v) {
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char c0 = '?';
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char c1 = '?';
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if (v < 100) {
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c1 = v/10;
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c0 = v - 10*c1 + '0';
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c1 += '0';
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}
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pr->write(c1);
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pr->write(c0);
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}
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//------------------------------------------------------------------------------
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static void printU32(print_t* pr, uint32_t v) {
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char buf[11];
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char* ptr = buf + sizeof(buf);
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*--ptr = 0;
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pr->write(fmtDec(v, ptr));
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}
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//------------------------------------------------------------------------------
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static void printHex(print_t* pr, uint8_t w, uint16_t h) {
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char buf[5];
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char* ptr = buf + sizeof(buf);
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*--ptr = 0;
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for (uint8_t i = 0; i < w; i++) {
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char c = h & 0XF;
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*--ptr = c < 10 ? c + '0' : c + 'A' - 10;
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h >>= 4;
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}
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pr->write(ptr);
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}
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//------------------------------------------------------------------------------
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void FatFile::dmpFile(print_t* pr, uint32_t pos, size_t n) {
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char text[17];
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text[16] = 0;
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if (n >= 0XFFF0) {
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n = 0XFFF0;
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}
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if (!seekSet(pos)) {
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return;
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}
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for (size_t i = 0; i <= n; i++) {
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if ((i & 15) == 0) {
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if (i) {
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pr->write(' ');
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pr->write(text);
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if (i == n) {
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break;
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}
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}
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pr->write('\r');
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pr->write('\n');
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if (i >= n) {
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break;
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}
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printHex(pr, 4, i);
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pr->write(' ');
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}
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int16_t h = read();
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if (h < 0) {
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break;
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}
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pr->write(' ');
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printHex(pr, 2, h);
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text[i&15] = ' ' <= h && h < 0X7F ? h : '.';
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}
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pr->write('\r');
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pr->write('\n');
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}
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//------------------------------------------------------------------------------
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bool FatFile::ls(print_t* pr, uint8_t flags, uint8_t indent) {
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FatFile file;
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if (!isDir() || getError()) {
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DBG_FAIL_MACRO;
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goto fail;
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}
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rewind();
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while (file.openNext(this, O_RDONLY)) {
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if (!file.isHidden() || (flags & LS_A)) {
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// indent for dir level
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for (uint8_t i = 0; i < indent; i++) {
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pr->write(' ');
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}
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if (flags & LS_DATE) {
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file.printModifyDateTime(pr);
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pr->write(' ');
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}
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if (flags & LS_SIZE) {
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file.printFileSize(pr);
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pr->write(' ');
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}
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file.printName(pr);
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if (file.isDir()) {
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pr->write('/');
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}
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pr->write('\r');
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pr->write('\n');
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if ((flags & LS_R) && file.isDir()) {
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if (!file.ls(pr, flags, indent + 2)) {
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DBG_FAIL_MACRO;
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goto fail;
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}
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}
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}
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file.close();
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}
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if (getError()) {
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DBG_FAIL_MACRO;
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goto fail;
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}
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return true;
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fail:
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return false;
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}
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//------------------------------------------------------------------------------
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bool FatFile::printCreateDateTime(print_t* pr) {
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dir_t dir;
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if (!dirEntry(&dir)) {
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DBG_FAIL_MACRO;
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goto fail;
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}
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printFatDate(pr, dir.creationDate);
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pr->write(' ');
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printFatTime(pr, dir.creationTime);
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return true;
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fail:
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return false;
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}
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//------------------------------------------------------------------------------
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void FatFile::printFatDate(print_t* pr, uint16_t fatDate) {
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printU32(pr, FAT_YEAR(fatDate));
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pr->write('-');
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print2u(pr, FAT_MONTH(fatDate));
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pr->write('-');
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print2u(pr, FAT_DAY(fatDate));
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}
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//------------------------------------------------------------------------------
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void FatFile::printFatTime(print_t* pr, uint16_t fatTime) {
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print2u(pr, FAT_HOUR(fatTime));
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pr->write(':');
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print2u(pr, FAT_MINUTE(fatTime));
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pr->write(':');
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print2u(pr, FAT_SECOND(fatTime));
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}
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//------------------------------------------------------------------------------
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/** Template for FatFile::printField() */
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template <typename Type>
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static int printFieldT(FatFile* file, char sign, Type value, char term) {
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char buf[3*sizeof(Type) + 3];
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char* str = &buf[sizeof(buf)];
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if (term) {
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*--str = term;
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if (term == '\n') {
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*--str = '\r';
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}
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}
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#ifdef OLD_FMT
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do {
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Type m = value;
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value /= 10;
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*--str = '0' + m - 10*value;
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} while (value);
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#else // OLD_FMT
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str = fmtDec(value, str);
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#endif // OLD_FMT
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if (sign) {
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*--str = sign;
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}
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return file->write(str, &buf[sizeof(buf)] - str);
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}
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//------------------------------------------------------------------------------
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int FatFile::printField(float value, char term, uint8_t prec) {
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char buf[24];
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char* str = &buf[sizeof(buf)];
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if (term) {
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*--str = term;
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if (term == '\n') {
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*--str = '\r';
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}
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}
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str = fmtFloat(value, str, prec);
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return write(str, buf + sizeof(buf) - str);
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}
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//------------------------------------------------------------------------------
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int FatFile::printField(uint16_t value, char term) {
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return printFieldT(this, 0, value, term);
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}
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//------------------------------------------------------------------------------
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int FatFile::printField(int16_t value, char term) {
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char sign = 0;
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if (value < 0) {
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sign = '-';
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value = -value;
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}
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return printFieldT(this, sign, (uint16_t)value, term);
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}
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//------------------------------------------------------------------------------
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int FatFile::printField(uint32_t value, char term) {
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return printFieldT(this, 0, value, term);
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}
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//------------------------------------------------------------------------------
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int FatFile::printField(int32_t value, char term) {
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char sign = 0;
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if (value < 0) {
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sign = '-';
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value = -value;
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}
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return printFieldT(this, sign, (uint32_t)value, term);
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}
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//------------------------------------------------------------------------------
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bool FatFile::printModifyDateTime(print_t* pr) {
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dir_t dir;
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if (!dirEntry(&dir)) {
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DBG_FAIL_MACRO;
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goto fail;
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}
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printFatDate(pr, dir.lastWriteDate);
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pr->write(' ');
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printFatTime(pr, dir.lastWriteTime);
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return true;
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fail:
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return false;
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}
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//------------------------------------------------------------------------------
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size_t FatFile::printFileSize(print_t* pr) {
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char buf[11];
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char *ptr = buf + sizeof(buf);
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*--ptr = 0;
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ptr = fmtDec(fileSize(), ptr);
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while (ptr > buf) {
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*--ptr = ' ';
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}
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return pr->write(buf);
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}
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