Merge branch 'master' into isa/arm64

[lunaix-os.git] / lunaix-os / tests / units / device-tree / load.c

diff --git a/lunaix-os/tests/units/device-tree/load.c b/lunaix-os/tests/units/device-tree/load.c
new file mode 100644 (file)
index 0000000..f97765e
--- /dev/null
+++ b/lunaix-os/tests/units/device-tree/load.c
@@ -0,0 +1,46 @@
+#include "common.h"
+
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+
+#define MAX_DTB_SZ (2 * 1024 * 1024)
+
+#ifndef TEST_DTBFILE
+#warning "no test dtb file given"
+#define TEST_DTBFILE ""
+#endif
+
+extern void init_export___init_devtree();
+
+ptr_t
+load_fdt()
+{
+    int fd = open(TEST_DTBFILE, O_RDONLY);
+    if (fd == -1) {
+        printf("fail to open: %s, %s\n", TEST_DTBFILE, strerror(errno));
+        return false;
+    }
+
+    ptr_t dtb = (ptr_t)mmap(0, 
+                            MAX_DTB_SZ, 
+                            PROT_READ | PROT_WRITE | MAP_POPULATE, 
+                            MAP_PRIVATE, fd, 0);
+    
+    if (dtb == (ptr_t)-1) {
+        printf("fail to map dtb: %s\n", strerror(errno));
+        _exit(1);
+    }
+
+    close(fd);
+    return dtb;
+}
+
+bool
+my_load_dtb()
+{
+    init_export___init_devtree();
+    return dt_load(load_fdt());
+}
\ No newline at end of file