whb: Add SD card mounting support.

src/libwhb/include/whb/sdcard.h

@@ -0,0 +1,27 @@
+#pragma once
+#include <wut.h>
+
+/**
+ * \defgroup whb_sdcard SDCard Access
+ * \ingroup whb
+ * @{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+BOOL
+WHBMountSdCard();
+
+char *
+WHBGetSdCardMountPath();
+
+BOOL
+WHBUnmountSdCard();
+
+#ifdef __cplusplus
+}
+#endif
+
+/** @} */

src/libwhb/src/sdcard.c

@@ -0,0 +1,78 @@
+#include <coreinit/filesystem.h>
+#include <whb/sdcard.h>
+#include <whb/log.h>
+
+static BOOL
+sMounted = FALSE;
+
+static char
+sMountPath[128] = { 0 };
+
+static FSClient
+sClient;
+
+BOOL
+WHBMountSdCard()
+{
+   FSCmdBlock cmd;
+   FSMountSource mountSource;
+   FSStatus result;
+
+   if (sMounted) {
+      return TRUE;
+   }
+
+   FSInit();
+
+   result = FSAddClient(&sClient, -1);
+   if (result != FS_STATUS_OK) {
+      WHBLogPrintf("%s: FSAddClient error %d", __FUNCTION__, result);
+      return FALSE;
+   }
+
+   FSInitCmdBlock(&cmd);
+   result = FSGetMountSource(&sClient, &cmd, FS_MOUNT_SOURCE_SD, &mountSource, -1);
+   if (result < 0) {
+      WHBLogPrintf("%s: FSGetMountSource error %d", __FUNCTION__, result);
+      goto fail;
+   }
+
+   result = FSMount(&sClient, &cmd, &mountSource, sMountPath, sizeof(sMountPath), -1);
+   if (result < 0) {
+      WHBLogPrintf("%s: FSMount error %d", __FUNCTION__, result);
+      goto fail;
+   }
+
+   sMounted = TRUE;
+   return TRUE;
+
+fail:
+   FSDelClient(&sClient, -1);
+   return FALSE;
+}
+
+char *
+WHBGetSdCardMountPath()
+{
+   return sMountPath;
+}
+
+BOOL
+WHBUnmountSdCard()
+{
+   FSCmdBlock cmd;
+   FSStatus result;
+
+   if (!sMounted) {
+      return TRUE;
+   }
+
+   result = FSUnmount(&sClient, &cmd, sMountPath, -1);
+   if (result < 0) {
+      WHBLogPrintf("%s: FSUnmount error %d", __FUNCTION__, result);
+      return FALSE;
+   }
+
+   sMounted = FALSE;
+   return TRUE;
+}