1 files changed, 71 insertions, 0 deletions
diff --git a/qemu/roms/openbios/include/arch/amd64/io.h b/qemu/roms/openbios/include/arch/amd64/io.h
new file mode 100644
index 000000000..9be1cb857
--- /dev/null
+++ b/qemu/roms/openbios/include/arch/amd64/io.h
@@ -0,0 +1,71 @@
+#ifndef _ASM_IO_H
+#define _ASM_IO_H
+
+extern char _start, _end;
+extern unsigned long virt_offset;
+
+#define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - virt_offset))
+#define virt_to_phys(virt) ((unsigned long) (virt) + virt_offset)
+
+#ifndef BOOTSTRAP
+
+#define __SLOW_DOWN_IO "outb %%al,$0x80;"
+static inline void slow_down_io(void)
+{
+	__asm__ __volatile__(
+		__SLOW_DOWN_IO
+#ifdef REALLY_SLOW_IO
+		__SLOW_DOWN_IO __SLOW_DOWN_IO __SLOW_DOWN_IO
+#endif
+		: : );
+}
+
+#define BUILDIO(bwl,bw,type) \
+static inline void out##bwl(unsigned type value, int port) { \
+	__asm__ __volatile__("out" #bwl " %" #bw "0, %w1" : : "a"(value), "Nd"(port)); \
+} \
+static inline unsigned type in##bwl(int port) { \
+	unsigned type value; \
+	__asm__ __volatile__("in" #bwl " %w1, %" #bw "0" : "=a"(value) : "Nd"(port)); \
+	return value; \
+} \
+static inline void out##bwl##_p(unsigned type value, int port) { \
+	out##bwl(value, port); \
+	slow_down_io(); \
+} \
+static inline unsigned type in##bwl##_p(int port) { \
+	unsigned type value = in##bwl(port); \
+	slow_down_io(); \
+	return value; \
+} \
+static inline void outs##bwl(int port, const void *addr, unsigned long count) { \
+	__asm__ __volatile__("rep; outs" #bwl : "+S"(addr), "+c"(count) : "d"(port)); \
+} \
+static inline void ins##bwl(int port, void *addr, unsigned long count) { \
+	__asm__ __volatile__("rep; ins" #bwl : "+D"(addr), "+c"(count) : "d"(port)); \
+}
+
+BUILDIO(b,b,char)
+BUILDIO(w,w,short)
+BUILDIO(l,,int)
+
+#else /* BOOTSTRAP */
+#ifdef FCOMPILER
+#define inb(reg) ((u8)0xff)
+#define inw(reg) ((u16)0xffff)
+#define inl(reg) ((u32)0xffffffff)
+#define outb(reg, val) do{} while(0)
+#define outw(reg, val) do{} while(0)
+#define outl(reg, val) do{} while(0)
+#else
+extern u8 inb(u32 reg);
+extern u16 inw(u32 reg);
+extern u32 inl(u32 reg);
+extern void insw(u32 reg, void *addr, unsigned long count);
+extern void outb(u32 reg, u8 val);
+extern void outw(u32 reg, u16 val);
+extern void outl(u32 reg, u32 val);
+extern void outsw(u32 reg, const void *addr, unsigned long count);
+#endif
+#endif
+#endif