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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(SDSUPPORT)
-
- #include "../gcode.h"
- #include "../../sd/cardreader.h"
-
- /**
- * M21: Init SD Card
- *
- * With MULTI_VOLUME:
- * P0 or S - Change to the SD Card and mount it
- * P1 or U - Change to the USB Drive and mount it
- */
- void GcodeSuite::M21() {
- #if ENABLED(MULTI_VOLUME)
- const int8_t vol = parser.intval('P', -1);
- if (vol == 0 || parser.seen_test('S')) // "S" for SD Card
- card.changeMedia(&card.media_driver_sdcard);
- else if (vol == 1 || parser.seen_test('U')) // "U" for USB
- card.changeMedia(&card.media_driver_usbFlash);
- #endif
- card.mount();
- }
-
- /**
- * M22: Release SD Card
- */
- void GcodeSuite::M22() {
- if (!IS_SD_PRINTING()) card.release();
- }
-
- #endif // SDSUPPORT
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