1 files changed, 75 insertions, 0 deletions
diff --git a/include/system/ioport.h b/include/system/ioport.h
new file mode 100644
index 0000000..780ea5a
--- /dev/null
+++ b/include/system/ioport.h
@@ -0,0 +1,75 @@
+/*
+ * defines ioport related functions
+ *
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**************************************************************************
+ * IO ports API
+ */
+
+#ifndef SYSTEM_IOPORT_H
+#define SYSTEM_IOPORT_H
+
+#include "system/memory.h"
+
+#define MAX_IOPORTS     (64 * 1024)
+#define IOPORTS_MASK    (MAX_IOPORTS - 1)
+
+typedef struct MemoryRegionPortio {
+    uint32_t offset;
+    uint32_t len;
+    unsigned size;
+    uint32_t (*read)(void *opaque, uint32_t address);
+    void (*write)(void *opaque, uint32_t address, uint32_t data);
+} MemoryRegionPortio;
+
+#define PORTIO_END_OF_LIST() { }
+
+extern const MemoryRegionOps unassigned_io_ops;
+
+void cpu_outb(uint32_t addr, uint8_t val);
+void cpu_outw(uint32_t addr, uint16_t val);
+void cpu_outl(uint32_t addr, uint32_t val);
+uint8_t cpu_inb(uint32_t addr);
+uint16_t cpu_inw(uint32_t addr);
+uint32_t cpu_inl(uint32_t addr);
+
+typedef struct PortioList {
+    const struct MemoryRegionPortio *ports;
+    Object *owner;
+    struct MemoryRegion *address_space;
+    uint32_t addr;
+    unsigned nr;
+    struct MemoryRegion **regions;
+    void *opaque;
+    const char *name;
+    bool flush_coalesced_mmio;
+} PortioList;
+
+void portio_list_init(PortioList *piolist, Object *owner,
+                      const struct MemoryRegionPortio *callbacks,
+                      void *opaque, const char *name);
+void portio_list_set_flush_coalesced(PortioList *piolist);
+void portio_list_destroy(PortioList *piolist);
+void portio_list_add(PortioList *piolist,
+                     struct MemoryRegion *address_space,
+                     uint32_t addr);
+void portio_list_del(PortioList *piolist);
+void portio_list_set_enabled(PortioList *piolist, bool enabled);
+void portio_list_set_address(PortioList *piolist, uint32_t addr);
+
+#endif /* IOPORT_H */