feat(sdmmc): sdmmc full ll layer

components/hal/include/hal/sd_types.h

@@ -0,0 +1,26 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include "soc/soc_caps.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief SD bus width
+ */
+typedef enum {
+    SD_BUS_WIDTH_1_BIT,    ///< 1 bit
+    SD_BUS_WIDTH_4_BIT,    ///< 4 bit
+    SD_BUS_WIDTH_8_BIT,    ///< 8 bit
+} sd_bus_width_t;
+
+#ifdef __cplusplus
+}
+#endif