1 files changed, 113 insertions, 0 deletions
diff --git a/board/MAI/AmigaOneG3SE/memio.h b/board/MAI/AmigaOneG3SE/memio.h
new file mode 100644
index 0000000..df0839f
--- /dev/null
+++ b/board/MAI/AmigaOneG3SE/memio.h
@@ -0,0 +1,113 @@
+/*
+ * Memory mapped IO
+ *
+ * (C) Copyright 2002
+ * Hyperion Entertainment, ThomasF@hyperion-entertainment.com 
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ * You may also use this under a BSD license.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	
+ *
+ */ 
+
+#ifndef _MEMIO_H
+#define _MEMIO_H
+
+#include "short_types.h"
+
+#define IOBASE 0xFE000000
+
+#define in_byte(from) read_byte( (uint8 *)(IOBASE | (from)))
+#define in_word(from) read_word_little((uint16 *)(IOBASE | (from)))
+#define in_long(from) read_long_little((uint32 *)(IOBASE | (from)))
+#define out_byte(to, val) write_byte((uint8 *)(IOBASE | (to)), val)
+#define out_word(to, val) write_word_little((uint16 *)(IOBASE | (to)), val)
+#define out_long(to, val) write_long_little((uint32 *)(IOBASE | (to)), val)
+
+
+static inline uint8 read_byte(volatile uint8 *from)
+{
+    int x;
+    asm volatile ("lbz %0,%1\n eieio\n sync" : "=r" (x) : "m" (*from));
+    return (uint8)x;
+}
+
+
+static inline void write_byte(volatile uint8 *to, uint8 x)
+{
+    asm volatile ("stb %1,%0\n eieio\n sync" : "=m" (*to) : "r" (x));
+}
+
+static inline uint16 read_word_little(volatile uint16 *from)
+{
+    int x;
+    asm volatile ("lhbrx %0,0,%1\n eieio\n sync" : "=r" (x) : "r" (from), "m" (*from));
+    return (uint16)x;
+}
+
+static inline uint16 read_word_big(volatile uint16 *from)
+{
+    int x;
+    asm volatile ("lhz %0,%1\n eieio\n sync" : "=r" (x) : "m" (*from));
+    return (uint16)x;
+}
+
+static inline void write_word_little(volatile uint16 *to, int x)
+{
+    asm volatile ("sthbrx %1,0,%2\n eieio\n sync" : "=m" (*to) : "r" (x), "r" (to));
+}
+
+static inline void write_word_big(volatile uint16 *to, int x)
+{
+    asm volatile ("sth %1,%0\n eieio\n sync" : "=m" (*to) : "r" (x));
+}
+
+static inline uint32 read_long_little(volatile uint32 *from)
+{
+    unsigned long x;
+    asm volatile ("lwbrx %0,0,%1\n eieio\n sync" : "=r" (x) : "r" (from), "m"(*from));
+    return (uint32)x;
+}
+
+static inline uint32 read_long_big(volatile uint32 *from)
+{
+    unsigned long x;
+    asm volatile ("lwz %0,%1\n eieio\n sync" : "=r" (x) : "m" (*from));
+    return (uint32)x;
+}
+
+static inline void write_long_little(volatile uint32 *to, uint32 x)
+{
+    asm volatile ("stwbrx %1,0,%2\n eieio\n sync" : "=m" (*to) : "r" (x), "r" (to));
+}
+
+static inline void write_long_big(volatile uint32 *to, uint32 x)
+{
+    asm volatile ("stw %1,%0\n eieio\n sync" : "=m" (*to) : "r" (x));
+}
+
+#define CONFIG_ADDR(bus, devfn, offset) \
+    write_long_big((uint32 *)0xFEC00CF8,           \
+                   ((offset & 0xFC)<<24) | (devfn << 16)  \
+                   | (bus<<8) | 0x80);
+#define CONFIG_DATA(offset,mask) ((void *)(0xFEE00CFC+(offset & mask)))
+
+
+uint8 pci_read_cfg_byte(int32 bus, int32 devfn, int32 offset);
+void pci_write_cfg_byte(int32 bus, int32 devfn, int32 offset, uint8 x);
+uint16 pci_read_cfg_word(int32 bus, int32 devfn, int32 offset);
+void pci_write_cfg_word(int32 bus, int32 devfn, int32 offset, uint16 x);
+uint32 pci_read_cfg_long(int32 bus, int32 devfn, int32 offset);
+void pci_write_cfg_long(int32 bus, int32 devfn, int32 offset, uint32 x);
+
+
+#endif