1 files changed, 96 insertions, 0 deletions
diff --git a/util/x86emu/yabel/compat/functions.c b/util/x86emu/yabel/compat/functions.c
new file mode 100644
index 0000000000..3b3d223b71
--- /dev/null
+++ b/util/x86emu/yabel/compat/functions.c
@@ -0,0 +1,96 @@
+/****************************************************************************
+ * YABEL BIOS Emulator
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Copyright (c) 2008 Pattrick Hueper <phueper@hueper.net>
+ ****************************************************************************/
+
+/* this file contains functions provided by SLOF, that the current biosemu implementation needs
+ * they should go away  inthe future...
+ */
+
+#include <types.h>
+#ifndef CONFIG_COREBOOT_V2
+#include <config.h>
+#endif
+#include <device/device.h>
+
+#define VMEM_SIZE 1024 *1024 /* 1 MB */
+
+#ifdef CONFIG_YABEL_VIRTMEM_LOCATION
+u8* vmem = (u8 *) CONFIG_YABEL_VIRTMEM_LOCATION;
+#else
+u8* vmem = (u8 *) (16*1024*1024); /* default to 16MB */
+#endif
+
+u32 biosemu(u8 *biosmem, u32 biosmem_size, struct device *dev,
+	    unsigned long rom_addr);
+
+void run_bios(struct device * dev, unsigned long addr)
+{
+	biosemu(vmem, VMEM_SIZE, dev, addr);
+}
+
+u64 get_time(void)
+{
+    u64 act;
+    u32 eax, edx;
+
+    __asm__ __volatile__(
+	"rdtsc"
+        : "=a"(eax), "=d"(edx)
+        : /* no inputs, no clobber */);
+    act = ((u64) edx << 32) | eax; 
+    return act;
+}
+
+unsigned int
+read_io(void *addr, size_t sz)
+{
+        unsigned int ret;
+	/* since we are using inb instructions, we need the port number as 16bit value */
+	u16 port = (u16)(u32) addr;
+
+        switch (sz) {
+        case 1:
+		asm volatile ("inb %1, %b0" : "=a"(ret) : "d" (port));
+                break;
+        case 2:
+		asm volatile ("inw %1, %w0" : "=a"(ret) : "d" (port));
+                break;
+        case 4:
+		asm volatile ("inl %1, %0" : "=a"(ret) : "d" (port));
+                break;
+        default:
+                ret = 0;
+        }
+
+        return ret;
+}
+
+int
+write_io(void *addr, unsigned int value, size_t sz)
+{
+	u16 port = (u16)(u32) addr;
+        switch (sz) {
+	/* since we are using inb instructions, we need the port number as 16bit value */
+        case 1:
+		asm volatile ("outb %b0, %1" : : "a"(value), "d" (port));
+                break;
+        case 2:
+		asm volatile ("outw %w0, %1" : : "a"(value), "d" (port));
+                break;
+        case 4:
+		asm volatile ("outl %0, %1" : : "a"(value), "d" (port));
+                break;
+        default:
+                return -1;
+        }
+
+        return 0;
+}
+