SdFatUtil.cpp@2c8ba1964db7 (annotated)
SdFatUtil.cpp
Sat, 07 Nov 2015 13:23:07 +0100
- author
- mbayer
- date
- Sat, 07 Nov 2015 13:23:07 +0100
- changeset 0
- 2c8ba1964db7
- permissions
- -rw-r--r--
Initial code from reprappro Marlin repository
| 0 | 1 | /* Arduino SdFat Library |
| 2 | * Copyright (C) 2008 by William Greiman | |
| 3 | * | |
| 4 | * This file is part of the Arduino SdFat Library | |
| 5 | * | |
| 6 | * This Library is free software: you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License as published by | |
| 8 | * the Free Software Foundation, either version 3 of the License, or | |
| 9 | * (at your option) any later version. | |
| 10 | * | |
| 11 | * This Library is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | ||
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with the Arduino SdFat Library. If not, see | |
| 18 | * <http://www.gnu.org/licenses/>. | |
| 19 | */ | |
| 20 | #include "Marlin.h" | |
| 21 | ||
| 22 | #ifdef SDSUPPORT | |
| 23 | #include "SdFatUtil.h" | |
| 24 | ||
| 25 | //------------------------------------------------------------------------------ | |
| 26 | /** Amount of free RAM | |
| 27 | * \return The number of free bytes. | |
| 28 | */ | |
| 29 | int SdFatUtil::FreeRam() { | |
| 30 | extern int __bss_end; | |
| 31 | extern int* __brkval; | |
| 32 | int free_memory; | |
| 33 | if (reinterpret_cast<int>(__brkval) == 0) { | |
| 34 | // if no heap use from end of bss section | |
| 35 | free_memory = reinterpret_cast<int>(&free_memory) | |
| 36 | - reinterpret_cast<int>(&__bss_end); | |
| 37 | } else { | |
| 38 | // use from top of stack to heap | |
| 39 | free_memory = reinterpret_cast<int>(&free_memory) | |
| 40 | - reinterpret_cast<int>(__brkval); | |
| 41 | } | |
| 42 | return free_memory; | |
| 43 | } | |
| 44 | //------------------------------------------------------------------------------ | |
| 45 | /** %Print a string in flash memory. | |
| 46 | * | |
| 47 | * \param[in] pr Print object for output. | |
| 48 | * \param[in] str Pointer to string stored in flash memory. | |
| 49 | */ | |
| 50 | void SdFatUtil::print_P( PGM_P str) { | |
| 51 | for (uint8_t c; (c = pgm_read_byte(str)); str++) MYSERIAL.write(c); | |
| 52 | } | |
| 53 | //------------------------------------------------------------------------------ | |
| 54 | /** %Print a string in flash memory followed by a CR/LF. | |
| 55 | * | |
| 56 | * \param[in] pr Print object for output. | |
| 57 | * \param[in] str Pointer to string stored in flash memory. | |
| 58 | */ | |
| 59 | void SdFatUtil::println_P( PGM_P str) { | |
| 60 | print_P( str); | |
| 61 | MYSERIAL.println(); | |
| 62 | } | |
| 63 | //------------------------------------------------------------------------------ | |
| 64 | /** %Print a string in flash memory to Serial. | |
| 65 | * | |
| 66 | * \param[in] str Pointer to string stored in flash memory. | |
| 67 | */ | |
| 68 | void SdFatUtil::SerialPrint_P(PGM_P str) { | |
| 69 | print_P(str); | |
| 70 | } | |
| 71 | //------------------------------------------------------------------------------ | |
| 72 | /** %Print a string in flash memory to Serial followed by a CR/LF. | |
| 73 | * | |
| 74 | * \param[in] str Pointer to string stored in flash memory. | |
| 75 | */ | |
| 76 | void SdFatUtil::SerialPrintln_P(PGM_P str) { | |
| 77 | println_P( str); | |
| 78 | } | |
| 79 | #endif |
