SDIO support for STM32F1 (#12782)

Marlin/src/sd/Sd2Card.cpp

@@ -30,7 +30,7 @@
 
 #include "../inc/MarlinConfig.h"
 
-#if ENABLED(SDSUPPORT) && DISABLED(USB_FLASH_DRIVE_SUPPORT)
+#if ENABLED(SDSUPPORT) && DISABLED(USB_FLASH_DRIVE_SUPPORT) && DISABLED(SDIO_SUPPORT)
 
 /* Enable FAST CRC computations - You can trade speed for FLASH space if
  * needed by disabling the following define */

Marlin/src/sd/Sd2Card_sdio.h

@@ -0,0 +1,39 @@
+/**
+ * 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/>.
+ *
+ */
+#pragma once
+
+#include "../inc/MarlinConfig.h"
+
+#if ENABLED(SDIO_SUPPORT)
+
+bool SDIO_Init(void);
+bool SDIO_ReadBlock(uint32_t block, uint8_t *dst);
+bool SDIO_WriteBlock(uint32_t block, const uint8_t *src);
+
+class Sd2Card {
+  public:
+    bool init(uint8_t sckRateID = 0, uint8_t chipSelectPin = 0) { return SDIO_Init(); }
+    bool readBlock(uint32_t block, uint8_t *dst) { return SDIO_ReadBlock(block, dst); }
+    bool writeBlock(uint32_t block, const uint8_t *src) { return SDIO_WriteBlock(block, src); }
+};
+
+#endif // SDIO_SUPPORT

Marlin/src/sd/SdVolume.h

@@ -35,6 +35,8 @@
 
 #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
   #include "usb_flashdrive/Sd2Card_FlashDrive.h"
+#elif ENABLED(SDIO_SUPPORT)
+  #include "Sd2Card_sdio.h"
 #else
   #include "Sd2Card.h"
 #endif