From a27354c9021a8423ef8c7d2bffad49cbf639eec1 Mon Sep 17 00:00:00 2001
From: Roman Yeryomin <roman@advem.lv>
Date: Thu, 13 Sep 2012 00:40:35 +0300
Subject: Add realtek target files

Signed-off-by: Roman Yeryomin <roman@advem.lv>
---
 target/linux/realtek/files/rtkload/read_memory.c | 124 +++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 target/linux/realtek/files/rtkload/read_memory.c

(limited to 'target/linux/realtek/files/rtkload/read_memory.c')

diff --git a/target/linux/realtek/files/rtkload/read_memory.c b/target/linux/realtek/files/rtkload/read_memory.c
new file mode 100644
index 000000000..2596911e9
--- /dev/null
+++ b/target/linux/realtek/files/rtkload/read_memory.c
@@ -0,0 +1,124 @@
+/* read_memory.c
+ * 
+ * This file is subject to the terms and conditions of the GNU
+ * General Public License.  See the file "COPYING" in the main
+ * directory of this archive for more details.
+ *
+ * Copyright (C) 2000, Jay Carlson
+ */
+
+/*   read_memory is the memory-based back end for the image-reading
+ * functions.
+ * 
+ * Support for non-compressed kernels has probably rotted.  
+ */
+
+
+#include <linux/types.h>
+#include "hfload.h"
+
+#ifndef EMBEDDED
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#endif
+
+char *source_memory;
+
+#ifdef EMBEDDED
+#ifndef COMPRESSED_KERNEL
+extern char source_memory_start;
+#endif
+#endif
+
+// david -----------------------
+//#include <linux/config.h>
+#include <linux/autoconf.h>
+
+//#ifdef BZ2_COMPRESS //sc_yang
+void * memcpy(void * dest,const void *src,size_t count)
+{
+        char *tmp = (char *) dest, *s = (char *) src;
+
+        while (count--)
+                *tmp++ = *s++;
+
+        return dest;
+}
+#if 0
+void * memset(void * s, int c, size_t count)
+{
+        char *xs = (char *) s;
+
+        while (count--)
+                *xs++ = (char) c;
+
+        return s;
+}
+#endif // CONFIG_NINO_8MB
+//------------------------------
+
+
+void
+read_struct(void *s, ssize_t size)
+{
+	memcpy(s, source_memory+file_offset, size);
+    file_offset += size;
+}
+
+void
+seek_forward(int offset) {
+        if (offset % 4 != 0) {
+         #ifndef __DO_QUIET__       
+				printf("Can't seek by a non-word aligned amount\n");
+        #endif 
+		       exit(1);
+        }
+        
+        if (offset < file_offset) {
+            #ifndef __DO_QUIET__    
+			printf("can't seek backwards\n");
+			#endif
+                exit(1);
+        }
+
+        file_offset = offset;
+}
+
+void
+copy_to_region(int *addr, ssize_t size) {
+        int i, dummy;
+
+        int *source, *dest;
+#ifndef __DO_QUIET__
+        printf("copying 0x%x bytes from file offset 0x%x to address 0x%08x\n",
+               size, file_offset, addr);
+#endif
+#ifndef FAKE_COPYING
+        memcpy(addr, source_memory+file_offset, size);
+#endif
+        
+        file_offset += size;
+}
+
+void
+init_read() {
+#ifndef EMBEDDED
+        struct stat buf;
+        if (fstat(0, &buf)) {
+                perror("stat");
+                exit(1);
+        }
+        source_memory = mmap(0, buf.st_size & ~(4095), PROT_READ, MAP_PRIVATE, 0, 0);
+        if (!source_memory) {
+                perror("mmap");
+                exit(1);
+        }
+#else
+#ifdef COMPRESSED_KERNEL
+        source_memory = (char *)UNCOMPRESS_OUT;
+#else
+        source_memory = &source_memory_start;
+#endif
+#endif
+}
-- 
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