fix: add extern C guards to eos_dram.h

Author: srpatcha

include/eos_dram.h

@@ -1,50 +1,57 @@
-/**
- * @file eos_dram.h
- * @brief DDR/DRAM initialization and training for SoCs with external memory
- *
- * Required for Cortex-A class SoCs (i.MX8M, AM64x, RPi4) that use
- * external DDR/LPDDR. MCUs with on-chip SRAM skip this.
- */
-
-#ifndef EOS_DRAM_H
-#define EOS_DRAM_H
-
-#include "eos_types.h"
-
-typedef enum {
-    EOS_DRAM_DDR3,
-    EOS_DRAM_DDR3L,
-    EOS_DRAM_DDR4,
-    EOS_DRAM_LPDDR4,
-    EOS_DRAM_LPDDR4X,
-    EOS_DRAM_LPDDR5,
-    EOS_DRAM_DDR5
-} eos_dram_type_t;
-
-typedef struct {
-    eos_dram_type_t type;
-    uint32_t base_addr;
-    uint32_t size_bytes;
-    uint32_t bus_width;         /* 16, 32, 64 */
-    uint32_t clock_mhz;
-    uint32_t cas_latency;
-    uint32_t ranks;
-    uint32_t banks;
-    bool     ecc_enabled;
-    bool     training_done;
-} eos_dram_config_t;
-
-typedef struct {
-    uint32_t read_delay;
-    uint32_t write_delay;
-    uint32_t dqs_delay;
-    uint32_t clk_delay;
-    bool     valid;
-} eos_dram_training_t;
-
-int  eos_dram_init(eos_dram_config_t *cfg);
-int  eos_dram_train(eos_dram_config_t *cfg, eos_dram_training_t *result);
-int  eos_dram_test(const eos_dram_config_t *cfg);
-void eos_dram_dump(const eos_dram_config_t *cfg);
-
-#endif /* EOS_DRAM_H */
+/**
+ * @file eos_dram.h
+ * @brief DDR/DRAM initialization and training for SoCs with external memory
+ *
+ * Required for Cortex-A class SoCs (i.MX8M, AM64x, RPi4) that use
+ * external DDR/LPDDR. MCUs with on-chip SRAM skip this.
+ */
+
+#ifndef EOS_DRAM_H
+#define EOS_DRAM_H
+
+#include "eos_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    EOS_DRAM_DDR3,
+    EOS_DRAM_DDR3L,
+    EOS_DRAM_DDR4,
+    EOS_DRAM_LPDDR4,
+    EOS_DRAM_LPDDR4X,
+    EOS_DRAM_LPDDR5,
+    EOS_DRAM_DDR5
+} eos_dram_type_t;
+
+typedef struct {
+    eos_dram_type_t type;
+    uint32_t base_addr;
+    uint32_t size_bytes;
+    uint32_t bus_width;         /* 16, 32, 64 */
+    uint32_t clock_mhz;
+    uint32_t cas_latency;
+    uint32_t ranks;
+    uint32_t banks;
+    bool     ecc_enabled;
+    bool     training_done;
+} eos_dram_config_t;
+
+typedef struct {
+    uint32_t read_delay;
+    uint32_t write_delay;
+    uint32_t dqs_delay;
+    uint32_t clk_delay;
+    bool     valid;
+} eos_dram_training_t;
+
+int  eos_dram_init(eos_dram_config_t *cfg);
+int  eos_dram_train(eos_dram_config_t *cfg, eos_dram_training_t *result);
+int  eos_dram_test(const eos_dram_config_t *cfg);
+void eos_dram_dump(const eos_dram_config_t *cfg);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* EOS_DRAM_H */