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pci_eb64plus_intr.s revision 1.1.6.1 
      1  1.1.6.1  thorpej /* $NetBSD: pci_eb64plus_intr.s,v 1.1.6.1 1997/09/04 00:53:48 thorpej Exp $ */
      2      1.1      cgd 
      3      1.1      cgd /*
      4      1.1      cgd  * Copyright (c) 1996 Carnegie-Mellon University.
      5      1.1      cgd  * All rights reserved.
      6      1.1      cgd  *
      7      1.1      cgd  * Author: Chris G. Demetriou
      8      1.1      cgd  *
      9      1.1      cgd  * Permission to use, copy, modify and distribute this software and
     10      1.1      cgd  * its documentation is hereby granted, provided that both the copyright
     11      1.1      cgd  * notice and this permission notice appear in all copies of the
     12      1.1      cgd  * software, derivative works or modified versions, and any portions
     13      1.1      cgd  * thereof, and that both notices appear in supporting documentation.
     14      1.1      cgd  *
     15      1.1      cgd  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16      1.1      cgd  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17      1.1      cgd  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18      1.1      cgd  *
     19      1.1      cgd  * Carnegie Mellon requests users of this software to return to
     20      1.1      cgd  *
     21      1.1      cgd  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22      1.1      cgd  *  School of Computer Science
     23      1.1      cgd  *  Carnegie Mellon University
     24      1.1      cgd  *  Pittsburgh PA 15213-3890
     25      1.1      cgd  *
     26      1.1      cgd  * any improvements or extensions that they make and grant Carnegie the
     27      1.1      cgd  * rights to redistribute these changes.
     28      1.1      cgd  */
     29      1.1      cgd 
     30      1.1      cgd /*
     31      1.1      cgd  * This file hacked from pci_eb164_intr.s
     32      1.1      cgd  *
     33      1.1      cgd  * These functions were written by disassembling a Digital UNIX kernel's
     34      1.1      cgd  * eb64p_intrdsabl and eb64p_intrenabl functions (because they had
     35      1.1      cgd  * interesting names, and looked like the eb164 versions which were
     36      1.1      cgd  * known to already work), and then playing with them to see how to call
     37      1.1      cgd  * them correctly.
     38      1.1      cgd  *
     39      1.1      cgd  * It looks like the right thing to do is to call them with the interrupt
     40      1.1      cgd  * request that you want to enable or disable (presumably in the range
     41      1.1      cgd  * 0 -> 23, since there are 3 8-bit interrupt-enable bits in the
     42      1.1      cgd  * interrupt mask PLD).
     43      1.1      cgd  */
     44      1.1      cgd 
     45      1.1      cgd #include <machine/asm.h>
     46      1.1      cgd 
     47  1.1.6.1  thorpej __KERNEL_RCSID(0, "$NetBSD: pci_eb64plus_intr.s,v 1.1.6.1 1997/09/04 00:53:48 thorpej Exp $");
     48      1.1      cgd 
     49      1.1      cgd 	.text
     50      1.1      cgd LEAF(eb64plus_intr_enable,1)
     51      1.1      cgd 	mov	a0, a1
     52      1.1      cgd 	ldiq	a0, 0x34
     53      1.1      cgd 	call_pal PAL_cserve
     54      1.1      cgd 	RET
     55      1.1      cgd 	END(eb64plus_intr_enable)
     56      1.1      cgd 
     57      1.1      cgd 	.text
     58      1.1      cgd LEAF(eb64plus_intr_disable,1)
     59      1.1      cgd 	mov	a0, a1
     60      1.1      cgd 	ldiq	a0, 0x35
     61      1.1      cgd 	call_pal PAL_cserve
     62      1.1      cgd 	RET
     63      1.1      cgd 	END(eb64plus_intr_enable)
     64