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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 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 <https://www.gnu.org/licenses/>.
- *
- */
- #include "../inc/MarlinConfig.h"
-
- #if ENABLED(GCODE_REPEAT_MARKERS)
-
- //#define DEBUG_GCODE_REPEAT_MARKERS
-
- #include "repeat.h"
-
- #include "../gcode/gcode.h"
- #include "../sd/cardreader.h"
-
- #define DEBUG_OUT ENABLED(DEBUG_GCODE_REPEAT_MARKERS)
- #include "../core/debug_out.h"
-
- repeat_marker_t Repeat::marker[MAX_REPEAT_NESTING];
- uint8_t Repeat::index;
-
- void Repeat::add_marker(const uint32_t sdpos, const uint16_t count) {
- if (index >= MAX_REPEAT_NESTING)
- SERIAL_ECHO_MSG("!Too many markers.");
- else {
- marker[index].sdpos = sdpos;
- marker[index].counter = count ?: -1;
- index++;
- DEBUG_ECHOLNPAIR("Add Marker ", int(index), " at ", sdpos, " (", count, ")");
- }
- }
-
- void Repeat::loop() {
- if (!index) // No marker?
- SERIAL_ECHO_MSG("!No marker set."); // Inform the user.
- else {
- const uint8_t ind = index - 1; // Active marker's index
- if (!marker[ind].counter) { // Did its counter run out?
- DEBUG_ECHOLNPAIR("Pass Marker ", int(index));
- index--; // Carry on. Previous marker on the next 'M808'.
- }
- else {
- card.setIndex(marker[ind].sdpos); // Loop back to the marker.
- if (marker[ind].counter > 0) // Ignore a negative (or zero) counter.
- --marker[ind].counter; // Decrement the counter. If zero this 'M808' will be skipped next time.
- DEBUG_ECHOLNPAIR("Goto Marker ", int(index), " at ", marker[ind].sdpos, " (", marker[ind].counter, ")");
- }
- }
- }
-
- void Repeat::cancel() { LOOP_L_N(i, index) marker[i].counter = 0; }
-
- void Repeat::early_parse_M808(char * const cmd) {
- if (is_command_M808(cmd)) {
- DEBUG_ECHOLNPAIR("Parsing \"", cmd, "\"");
- parser.parse(cmd);
- if (parser.seen('L'))
- add_marker(card.getIndex(), parser.value_ushort());
- else
- Repeat::loop();
- }
- }
-
- #endif // GCODE_REPEAT_MARKERS
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