Firmware/Marlin/utility.cpp

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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "Marlin.h"
#include "utility.h"
#include "temperature.h"
void safe_delay(millis_t ms) {
while (ms > 50) {
ms -= 50;
delay(50);
thermalManager.manage_heater();
}
delay(ms);
thermalManager.manage_heater(); // This keeps us safe if too many small safe_delay() calls are made
}
#if ENABLED(EEPROM_SETTINGS)
void crc16(uint16_t *crc, const void * const data, uint16_t cnt) {
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uint8_t *ptr = (uint8_t *)data;
while (cnt--) {
*crc = (uint16_t)(*crc ^ (uint16_t)(((uint16_t)*ptr++) << 8));
for (uint8_t i = 0; i < 8; i++)
*crc = (uint16_t)((*crc & 0x8000) ? ((uint16_t)(*crc << 1) ^ 0x1021) : (*crc << 1));
}
}
#endif // EEPROM_SETTINGS
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#if ENABLED(ULTRA_LCD) || (ENABLED(DEBUG_LEVELING_FEATURE) && (ENABLED(MESH_BED_LEVELING) || (HAS_ABL && !ABL_PLANAR)))
char conv[8] = { 0 };
#define DIGIT(n) ('0' + (n))
#define DIGIMOD(n, f) DIGIT((n)/(f) % 10)
#define RJDIGIT(n, f) ((n) >= (f) ? DIGIMOD(n, f) : ' ')
#define MINUSOR(n, alt) (n >= 0 ? (alt) : (n = -n, '-'))
// Convert unsigned int to string 123 format
char* i8tostr3(const uint8_t i) {
conv[4] = RJDIGIT(i, 100);
conv[5] = RJDIGIT(i, 10);
conv[6] = DIGIMOD(i, 1);
return &conv[4];
}
// Convert signed int to rj string with 123 or -12 format
char* itostr3(int i) {
conv[4] = MINUSOR(i, RJDIGIT(i, 100));
conv[5] = RJDIGIT(i, 10);
conv[6] = DIGIMOD(i, 1);
return &conv[4];
}
// Convert unsigned int to lj string with 123 format
char* itostr3left(const int i) {
char *str = &conv[6];
*str = DIGIMOD(i, 1);
if (i >= 10) {
*(--str) = DIGIMOD(i, 10);
if (i >= 100)
*(--str) = DIGIMOD(i, 100);
}
return str;
}
// Convert signed int to rj string with 1234, _123, -123, _-12, or __-1 format
char* itostr4sign(const int i) {
const bool neg = i < 0;
const int ii = neg ? -i : i;
if (i >= 1000) {
conv[3] = DIGIMOD(ii, 1000);
conv[4] = DIGIMOD(ii, 100);
conv[5] = DIGIMOD(ii, 10);
}
else if (ii >= 100) {
conv[3] = neg ? '-' : ' ';
conv[4] = DIGIMOD(ii, 100);
conv[5] = DIGIMOD(ii, 10);
}
else {
conv[3] = ' ';
conv[4] = ' ';
if (ii >= 10) {
conv[4] = neg ? '-' : ' ';
conv[5] = DIGIMOD(ii, 10);
}
else {
conv[5] = neg ? '-' : ' ';
}
}
conv[6] = DIGIMOD(ii, 1);
return &conv[3];
}
// Convert unsigned float to string with 1.23 format
char* ftostr12ns(const float &f) {
const long i = ((f < 0 ? -f : f) * 1000 + 5) / 10;
conv[3] = DIGIMOD(i, 100);
conv[4] = '.';
conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(i, 1);
return &conv[3];
}
// Convert signed float to fixed-length string with 023.45 / -23.45 format
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char* ftostr52(const float &f) {
long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
conv[1] = MINUSOR(i, DIGIMOD(i, 10000));
conv[2] = DIGIMOD(i, 1000);
conv[3] = DIGIMOD(i, 100);
conv[4] = '.';
conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(i, 1);
return &conv[1];
}
#if ENABLED(LCD_DECIMAL_SMALL_XY)
// Convert float to rj string with 1234, _123, -123, _-12, 12.3, _1.2, or -1.2 format
char* ftostr4sign(const float &f) {
const int i = (f * 100 + (f < 0 ? -5: 5)) / 10;
if (!WITHIN(i, -99, 999)) return itostr4sign((int)f);
const bool neg = i < 0;
const int ii = neg ? -i : i;
conv[3] = neg ? '-' : (ii >= 100 ? DIGIMOD(ii, 100) : ' ');
conv[4] = DIGIMOD(ii, 10);
conv[5] = '.';
conv[6] = DIGIMOD(ii, 1);
return &conv[3];
}
#endif // LCD_DECIMAL_SMALL_XY
// Convert float to fixed-length string with +123.4 / -123.4 format
char* ftostr41sign(const float &f) {
int i = (f * 100 + (f < 0 ? -5: 5)) / 10;
conv[1] = MINUSOR(i, '+');
conv[2] = DIGIMOD(i, 1000);
conv[3] = DIGIMOD(i, 100);
conv[4] = DIGIMOD(i, 10);
conv[5] = '.';
conv[6] = DIGIMOD(i, 1);
return &conv[1];
}
// Convert signed float to string (6 digit) with -1.234 / _0.000 / +1.234 format
char* ftostr43sign(const float &f, char plus/*=' '*/) {
long i = (f * 10000 + (f < 0 ? -5: 5)) / 10;
conv[1] = i ? MINUSOR(i, plus) : ' ';
conv[2] = DIGIMOD(i, 1000);
conv[3] = '.';
conv[4] = DIGIMOD(i, 100);
conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(i, 1);
return &conv[1];
}
// Convert unsigned float to rj string with 12345 format
char* ftostr5rj(const float &f) {
const long i = ((f < 0 ? -f : f) * 10 + 5) / 10;
conv[2] = RJDIGIT(i, 10000);
conv[3] = RJDIGIT(i, 1000);
conv[4] = RJDIGIT(i, 100);
conv[5] = RJDIGIT(i, 10);
conv[6] = DIGIMOD(i, 1);
return &conv[2];
}
// Convert signed float to string with +1234.5 format
char* ftostr51sign(const float &f) {
long i = (f * 100 + (f < 0 ? -5: 5)) / 10;
conv[0] = MINUSOR(i, '+');
conv[1] = DIGIMOD(i, 10000);
conv[2] = DIGIMOD(i, 1000);
conv[3] = DIGIMOD(i, 100);
conv[4] = DIGIMOD(i, 10);
conv[5] = '.';
conv[6] = DIGIMOD(i, 1);
return conv;
}
// Convert signed float to string with +123.45 format
char* ftostr52sign(const float &f) {
long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
conv[0] = MINUSOR(i, '+');
conv[1] = DIGIMOD(i, 10000);
conv[2] = DIGIMOD(i, 1000);
conv[3] = DIGIMOD(i, 100);
conv[4] = '.';
conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(i, 1);
return conv;
}
// Convert unsigned float to string with 1234.56 format omitting trailing zeros
char* ftostr62rj(const float &f) {
const long i = ((f < 0 ? -f : f) * 1000 + 5) / 10;
conv[0] = RJDIGIT(i, 100000);
conv[1] = RJDIGIT(i, 10000);
conv[2] = RJDIGIT(i, 1000);
conv[3] = DIGIMOD(i, 100);
conv[4] = '.';
conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIMOD(i, 1);
return conv;
}
// Convert signed float to space-padded string with -_23.4_ format
char* ftostr52sp(const float &f) {
long i = (f * 1000 + (f < 0 ? -5: 5)) / 10;
uint8_t dig;
conv[1] = MINUSOR(i, RJDIGIT(i, 10000));
conv[2] = RJDIGIT(i, 1000);
conv[3] = DIGIMOD(i, 100);
if ((dig = i % 10)) { // second digit after decimal point?
conv[4] = '.';
conv[5] = DIGIMOD(i, 10);
conv[6] = DIGIT(dig);
}
else {
if ((dig = (i / 10) % 10)) { // first digit after decimal point?
conv[4] = '.';
conv[5] = DIGIT(dig);
}
else // nothing after decimal point
conv[4] = conv[5] = ' ';
conv[6] = ' ';
}
return &conv[1];
}
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#endif // ULTRA_LCD || (DEBUG_LEVELING_FEATURE && (MESH_BED_LEVELING || (HAS_ABL && !ABL_PLANAR)))