isa_platform.c

一个专门针对mips的bootloader程序源代码

/************************************************************************
 *
 *  isa_platform.c
 *
 *  Platform specific support of ISA bus
 *
 *
 * ######################################################################
 *
 * Copyright (c) 1999-2000 MIPS Technologies, Inc. All rights reserved. 
 * 
 * Unpublished rights reserved under the Copyright Laws of the United States of 
 * America. 
 * 
 * This document contains information that is proprietary to MIPS Technologies, 
 * Inc. ("MIPS Technologies"). Any copying, modifying or use of this information 
 * (in whole or in part) which is not expressly permitted in writing by MIPS 
 * Technologies or a contractually-authorized third party is strictly 
 * prohibited. At a minimum, this information is protected under unfair 
 * competition laws and the expression of the information contained herein is 
 * protected under federal copyright laws. Violations thereof may result in 
 * criminal penalties and fines. 
 * MIPS Technologies or any contractually-authorized third party reserves the 
 * right to change the information contained in this document to improve 
 * function, design or otherwise. MIPS Technologies does not assume any 
 * liability arising out of the application or use of this information. Any 
 * license under patent rights or any other intellectual property rights owned 
 * by MIPS Technologies or third parties shall be conveyed by MIPS Technologies 
 * or any contractually-authorized third party in a separate license agreement 
 * between the parties. 
 * The information contained in this document constitutes one or more of the 
 * following: commercial computer software, commercial computer software 
 * documentation or other commercial items. If the user of this information, or 
 * any related documentation of any kind, including related technical data or 
 * manuals, is an agency, department, or other entity of the United States 
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 * modification, disclosure, or transfer of this information, or any related 
 * documentation of any kind, is restricted in accordance with Federal 
 * Acquisition Regulation 12.212 for civilian agencies and Defense Federal 
 * Acquisition Regulation Supplement 227.7202 for military agencies. The use of 
 * this information by the Government is further restricted in accordance with 
 * the terms of the license agreement(s) and/or applicable contract terms and 
 * conditions covering this information from MIPS Technologies or any 
 * contractually-authorized third party. 
 *
 ************************************************************************/


/************************************************************************
 *  Include files
 ************************************************************************/

#include <sysdefs.h>
#include <shell_api.h>
#include <sys_api.h>
#include <product.h>
#include <malta.h>
#include <stdio.h>

/************************************************************************
 *  Definitions
 ************************************************************************/

#define PRT(msg)  if( SHELL_PUTS( msg ) ) return FALSE;

/************************************************************************
 *  Public variables
 ************************************************************************/

/************************************************************************
 *  Static variables
 ************************************************************************/

/************************************************************************
 *  Static function prototypes
 ************************************************************************/

/************************************************************************
 *  Implementation : Public functions
 ************************************************************************/

/************************************************************************
 *  Implementation : Static functions
 ************************************************************************/


/************************************************************************
 *
 *                          isa_display
 *  Description :
 *  -------------
 *
 *  Display platform specific ISA bus configuration data.
 *
 *  Return values :
 *  ---------------
 *
 *  TRUE : No ctrl-c detected, FALSE : ctrl-c detected
 *
 ************************************************************************/
bool
isa_display( void )
{
    char msg[80];

    switch ( sys_platform )
    {
      case PRODUCT_MALTA_ID :
        PRT( "Device   Address(ISA)   Address(CPU)   Interrupt line\n" );
	PRT( "-----------------------------------------------------\n" );

	/* TTY0 */	
        sprintf( msg, "TTY0     0x%03x          0x%08x     IRQ%d\n",
		          MALTA_SMSC_COM1_ADR,
			  MALTA_UART0ADR,
			  MALTA_INTLINE_TTY0 );
	PRT( msg );

	/* TTY1 */
        sprintf( msg, "TTY1     0x%03x          0x%08x     IRQ%d\n",
		          MALTA_SMSC_COM2_ADR,
			  MALTA_UART1ADR,
			  MALTA_INTLINE_TTY1 );
	PRT( msg );

	/* LPT */
        sprintf( msg, "LPT      0x%03x          0x%08x     IRQ%d\n",
		          MALTA_SMSC_1284_ADR,
			  MALTA_1284ADR,
			  MALTA_INTLINE_1284 );
	PRT( msg );

	/* FDD */
        sprintf( msg, "FDD      0x%03x          0x%08x     IRQ%d\n",
		          MALTA_SMSC_FDD_ADR,
			  MALTA_FDDADR,
			  MALTA_INTLINE_FDD );
	PRT( msg );

	/* Keyboard */
        sprintf( msg, "KYBD     0x%03x          0x%08x     IRQ%d\n",
		          MALTA_SMSC_KYBD_ADR,
			  MALTA_KYBDADR,
			  MALTA_INTLINE_KYBD );
	PRT( msg );

	/* Mouse */
        sprintf( msg, "MOUSE    0x%03x          0x%08x     IRQ%d\n",
		          MALTA_SMSC_MOUSE_ADR,
			  MALTA_MOUSEADR,
			  MALTA_INTLINE_MOUSE );
	PRT( msg );


        break;
      default : /* Should not happen */
        break;
    }

    return TRUE;
}