include:hw: add sdmmc driver header file

Signed-off-by: Ajay Bhargav <[email protected]>

Author: ajaybhargav

include/hw/sdmmc.h

@@ -0,0 +1,49 @@
+/*
+ * sdmmc.h
+ *
+ */
+
+#ifndef INCLUDE_HW_SDMMC_H_
+#define INCLUDE_HW_SDMMC_H_
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Card Type
+ * 
+ */
+enum cardtype_e {
+    CARD_TYPE_EMMC, /**< Card is EMMC, (5.0 supported) */
+    CARD_TYPE_SD,   /**< Card is SD or MMC type */
+};
+
+/**
+ * @brief Mount an SD card
+ * 
+ * To support SD card hotplug, Use GPIO for SD card detection
+ * Unmount SD card when card is removed and mount again when
+ * card is inserted.
+ * 
+ * On success, SD card is mounted on VFS at path: "/sd"
+ * 
+ * @param type card type @ref cardtype_e
+ * @return 0 on success, negative on error 
+ */
+int sdmmc_mount(uint8_t type);
+
+/**
+ * @brief Unmount SD card
+ * 
+ * @return 0 on success, negative on error
+ */
+int sdmmc_unmount(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* INCLUDE_HW_SDMMC_H_ */