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Import upstream version 1.97~beta3

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term/i386/pc/serial.c
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/*
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 *  GRUB  --  GRand Unified Bootloader
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 *  Copyright (C) 2000,2001,2002,2003,2004,2005,2007,2008  Free Software Foundation, Inc.
 
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 *  Copyright (C) 2000,2001,2002,2003,2004,2005,2007,2008,2009  Free Software Foundation, Inc.
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 *
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 *  GRUB is free software: you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 */
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#include <grub/machine/machine.h>
 
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#include <grub/machine/memory.h>
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#include <grub/machine/serial.h>
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#include <grub/machine/console.h>
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#include <grub/term.h>
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static struct serial_port serial_settings;
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#ifdef GRUB_MACHINE_PCBIOS
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/* The BIOS data area.  */
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static const unsigned short *serial_hw_io_addr = (const unsigned short *) 0x0400;
 
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static const unsigned short *serial_hw_io_addr = (const unsigned short *) GRUB_MEMORY_MACHINE_BIOS_DATA_AREA_ADDR;
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#define GRUB_SERIAL_PORT_NUM 4
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#else
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static const unsigned short serial_hw_io_addr[] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
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#define GRUB_SERIAL_PORT_NUM (sizeof(serial_hw_io_addr)/sizeof(serial_hw_io_addr[0]))
 
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#define GRUB_SERIAL_PORT_NUM (ARRAY_SIZE(serial_hw_io_addr))
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#endif
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/* Return the port number for the UNITth serial device.  */