1 files changed, 77 insertions, 0 deletions
diff --git a/tools/ioemu/iodev/guest2host.h b/tools/ioemu/iodev/guest2host.h
new file mode 100644
index 0000000000..0003662aa2
--- /dev/null
+++ b/tools/ioemu/iodev/guest2host.h
@@ -0,0 +1,77 @@
+/////////////////////////////////////////////////////////////////////////
+// $Id: guest2host.h,v 1.8 2002/12/06 18:48:08 bdenney Exp $
+/////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2001  MandrakeSoft S.A.
+//
+//    MandrakeSoft S.A.
+//    43, rue d'Aboukir
+//    75002 Paris - France
+//    http://www.linux-mandrake.com/
+//    http://www.mandrakesoft.com/
+//
+//  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 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, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+
+
+
+#define BX_MAX_G2H_CHANNELS 8
+#define BX_G2H_ERROR        ((unsigned) -1)
+  // IO port number for this interface.  Align on dword boundary.
+#define BX_G2H_PORT  0x2000
+  // Magic number which is first dword passed by guest
+#define BX_G2H_MAGIC 0xffeeddcc
+  // Number of dwords in packet from guest
+#define BX_G2H_PACKET_SIZE 5
+
+
+
+typedef Bit32u bx_guest_packet_t[BX_G2H_PACKET_SIZE];
+typedef void (*bx_g2h_callback_t)(bx_guest_packet_t *);
+
+
+
+class bx_g2h_c : public logfunctions {
+public:
+  bx_g2h_c(void);
+  ~bx_g2h_c(void);
+  static void   init(void);
+  void reset (unsigned type);
+  unsigned acquire_channel(bx_g2h_callback_t);
+  unsigned deacquire_channel(unsigned channel);
+
+private:
+
+  static Bit32u inp_handler(void *this_ptr, Bit32u addr, unsigned io_len);
+  static void   outp_handler(void *this_ptr, Bit32u addr,
+                              Bit32u value, unsigned io_len);
+  // state info
+  struct {
+    struct {
+      bx_g2h_callback_t f;
+      bx_bool used;
+      } callback[BX_MAX_G2H_CHANNELS];
+
+    // Define the data received from the guest OS.
+    //   dword0: magic number, should be BX_G2H_MAGIC
+    //   dword1: channel ID
+    //   dword2: address of data structure in guest physical memory
+    //   dword3: size of data structure in guest physical memory
+    //   dword4: address of return data structure in guest physical memory
+    unsigned packet_count;
+    bx_guest_packet_t guest_packet;
+    } s;
+  };
+
+extern bx_g2h_c bx_g2h;