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bugsyscalls.S revision 1.1.2.2 
      1 /*	$NetBSD: bugsyscalls.S,v 1.1.2.2 2002/02/28 04:11:11 nathanw Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Steve C. Woodford.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <machine/asm.h>
     40 
     41 #define	BSYS(num)	addi r10,0,num ; sc
     42 
     43 
     44 /*
     45  * char bugsys_inchr(void);
     46  *
     47  * Blocks until a character is received from the console.
     48  * Returns character.
     49  */
     50 ENTRY(bugsys_inchr)
     51 	BSYS(0x0000)
     52 	blr
     53 
     54 /*
     55  * void bugsys_outchr(char ch)
     56  */
     57 ENTRY(bugsys_outchr)
     58 	BSYS(0x0020)
     59 	blr
     60 
     61 /*
     62  * int bugsys_instat(void);
     63  *
     64  * Returns zero if no characters are waiting to be read
     65  * from the console. (i.e. bugsys_inchr() would block).
     66  * Otherwise, it returns a non-zero value.
     67  */
     68 ENTRY(bugsys_instat)
     69 	BSYS(0x0002)
     70 	li	r4,0x8
     71 	and	r3,r3,r4
     72 	blr
     73 
     74 /*
     75  * int bugsys_dskrd(struct bug_diskio *dcmd);
     76  *
     77  * Read data from disk according to the parameters specified
     78  * in the `dcmd' data structure.
     79  *
     80  * Returns zero on success, non-zero on failure.
     81  */
     82 ENTRY(bugsys_dskrd)
     83 	BSYS(0x0010)
     84 	li	r4,0x8
     85 	and	r3,r3,r4
     86 	blr
     87 
     88 /*
     89  * int bugsys_dskwr(struct bug_diskio *dcmd);
     90  *
     91  * Write data to disk according to the parameters specified
     92  * in the `dcmd' data structure.
     93  *
     94  * Returns zero on success, non-zero on failure.
     95  */
     96 ENTRY(bugsys_dskwr)
     97 	BSYS(0x0011)
     98 	li	r4,0x8
     99 	and	r3,r3,r4
    100 	blr
    101 
    102 /*
    103  * int bugsys_netio(struct bug_netcmd *ncmd);
    104  *
    105  * Performs an I/O operation to/from a network device as
    106  * specified in the `ncmd' data structure.
    107  *
    108  * Returns zero on success, non-zero on failure.
    109  */
    110 ENTRY(bugsys_netio)
    111 	BSYS(0x001d)
    112 	li	r4,0x8
    113 	and	r3,r3,r4
    114 	blr
    115 
    116 /*
    117  * void bugsys_delay(int );
    118  *
    119  * Suspend processing for the specified number of milli-seconds
    120  */
    121 ENTRY(bugsys_delay)
    122 	BSYS(0x0043)
    123 	blr
    124 
    125 /*
    126  * struct bug_boardid *bugsys_brdid(void);
    127  *
    128  * Returns a pointer to the board-id structure.
    129  */
    130 ENTRY(bugsys_brdid)
    131 	BSYS(0x0070)
    132 	blr
    133 
    134 /*
    135  * struct bug_ioinquiry *bugsys_ioinq(void);
    136  *
    137  * Returns a pointer to the ioinq structure.
    138  */
    139 ENTRY(bugsys_ioinq)
    140 	BSYS(0x0120)
    141 	blr
    142 
    143 /*
    144  * void bugsys_rtc_rd(struct bug_rtc_rd *);
    145  *
    146  * Reads the current time from the RTC chip.
    147  */
    148 ENTRY(bugsys_rtc_rd)
    149 	BSYS(0x0053)
    150 	blr
    151