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Revision 1.9, Thu Apr 25 09:20:27 2002 UTC (21 years, 11 months ago) by aymeric
Branch: MAIN
CVS Tags: yamt-x86pmap-base4, yamt-x86pmap-base3, yamt-x86pmap-base2, yamt-x86pmap-base, yamt-x86pmap, yamt-vop-base3, yamt-vop-base2, yamt-vop-base, yamt-vop, yamt-uio_vmspace-base5, yamt-uio_vmspace, yamt-splraiseipl-base5, yamt-splraiseipl-base4, yamt-splraiseipl-base3, yamt-splraiseipl-base2, yamt-splraiseipl-base, yamt-splraiseipl, yamt-readahead-pervnode, yamt-readahead-perfile, yamt-readahead-base3, yamt-readahead-base2, yamt-readahead-base, yamt-readahead, yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, yamt-pdpolicy-base9, yamt-pdpolicy-base8, yamt-pdpolicy-base7, yamt-pdpolicy-base6, yamt-pdpolicy-base5, yamt-pdpolicy-base4, yamt-pdpolicy-base3, yamt-pdpolicy-base2, yamt-pdpolicy-base, yamt-pdpolicy, yamt-nfs-mp-base2, yamt-nfs-mp-base, yamt-lazymbuf-base15, yamt-lazymbuf-base14, yamt-lazymbuf, yamt-kmem-base3, yamt-kmem-base2, yamt-kmem-base, yamt-kmem, yamt-km-base4, yamt-km-base3, yamt-km-base2, yamt-km-base, yamt-km, yamt-idlelwp-base8, yamt-idlelwp, wrstuden-revivesa-base-4, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, vmlocking2-base3, vmlocking2-base2, vmlocking2-base1, vmlocking2, vmlocking-nbase, vmlocking-base, vmlocking, thorpej-vnode-attr-base, thorpej-vnode-attr, thorpej-atomic-base, thorpej-atomic, simonb-wapbl-nbase, simonb-wapbl-base, simonb-wapbl, simonb-timecounters-base, simonb-timecounters, simonb-timcounters-final, rpaulo-netinet-merge-pcb-base, rpaulo-netinet-merge-pcb, reinoud-bufcleanup-nbase, reinoud-bufcleanup-base, reinoud-bufcleanup, ppcoea-renovation-base, ppcoea-renovation, post-newlock2-merge, peter-altq-base, peter-altq, nick-net80211-sync-base, nick-net80211-sync, nick-hppapmap-base2, nick-csl-alignment-base5, nick-csl-alignment-base, nick-csl-alignment, newlock2-nbase, newlock2-base, newlock2, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, netbsd-3-base, netbsd-3-1-RELEASE, netbsd-3-1-RC4, netbsd-3-1-RC3, netbsd-3-1-RC2, netbsd-3-1-RC1, netbsd-3-1-1-RELEASE, netbsd-3-1, netbsd-3-0-RELEASE, netbsd-3-0-RC6, netbsd-3-0-RC5, netbsd-3-0-RC4, netbsd-3-0-RC3, netbsd-3-0-RC2, netbsd-3-0-RC1, netbsd-3-0-3-RELEASE, netbsd-3-0-2-RELEASE, netbsd-3-0-1-RELEASE, netbsd-3-0, netbsd-3, netbsd-2-base, netbsd-2-1-RELEASE, netbsd-2-1-RC6, netbsd-2-1-RC5, netbsd-2-1-RC4, netbsd-2-1-RC3, netbsd-2-1-RC2, netbsd-2-1-RC1, netbsd-2-1, netbsd-2-0-base, netbsd-2-0-RELEASE, netbsd-2-0-RC5, netbsd-2-0-RC4, netbsd-2-0-RC3, netbsd-2-0-RC2, netbsd-2-0-RC1, netbsd-2-0-3-RELEASE, netbsd-2-0-2-RELEASE, netbsd-2-0-1-RELEASE, netbsd-2-0, netbsd-2, netbsd-1-6-base, netbsd-1-6-RELEASE, netbsd-1-6-RC3, netbsd-1-6-RC2, netbsd-1-6-RC1, netbsd-1-6-PATCH002-RELEASE, netbsd-1-6-PATCH002-RC4, netbsd-1-6-PATCH002-RC3, netbsd-1-6-PATCH002-RC2, netbsd-1-6-PATCH002-RC1, netbsd-1-6-PATCH002, netbsd-1-6-PATCH001-RELEASE, netbsd-1-6-PATCH001-RC3, netbsd-1-6-PATCH001-RC2, netbsd-1-6-PATCH001-RC1, netbsd-1-6-PATCH001, netbsd-1-6, nathanw_sa_before_merge, nathanw_sa_base, mjf-ufs-trans-base, mjf-ufs-trans, mjf-devfs2-base, mjf-devfs2, mjf-devfs-base, mjf-devfs, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-nb4-arm-base, matt-nb4-arm, matt-mips64-base2, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, ktrace-lwp-base, ktrace-lwp, kqueue-beforemerge, kqueue-base, kqueue-aftermerge, kent-audio2-base, kent-audio2, kent-audio1-beforemerge, kent-audio1-base, kent-audio1, keiichi-mipv6-nbase, keiichi-mipv6-base, keiichi-mipv6, jmcneill-pm-base, jmcneill-pm, jmcneill-base, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, haad-nbase2, haad-dm-base2, haad-dm-base1, haad-dm-base, haad-dm, gmcgarry_ucred_base, gmcgarry_ucred, gmcgarry_ctxsw_base, gmcgarry_ctxsw, gehenna-devsw-base, gehenna-devsw, gdamore-uart-base, gdamore-uart, fvdl_fs64_base, elad-kernelauth-base, elad-kernelauth, cube-autoconf-base, cube-autoconf, chap-midi-nbase, chap-midi-base, chap-midi, bouyer-xeni386-nbase, bouyer-xeni386-merge1, bouyer-xeni386-base, bouyer-xeni386, bouyer-xenamd64-base2, bouyer-xenamd64-base, bouyer-xenamd64, ad-socklock-base1, ad-audiomp2-base, ad-audiomp2, ad-audiomp-base, ad-audiomp, abandoned-netbsd-4-base, abandoned-netbsd-4
Branch point for: yamt-nfs-mp, nick-hppapmap, jym-xensuspend
Changes since 1.8: +4 -2 lines 

o replace definitions by declarations in header files
o put definitions where due
o cleanup some types  (u_int -> vaddr_t's for example)
o minor other cleanup

/*	$NetBSD: cia.c,v 1.9 2002/04/25 09:20:27 aymeric Exp $	*/

/*
 * Copyright (c) 1993 Markus Wild
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Markus Wild.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
/*
 *  this file provides an interface to CIA-generated interrupts.
 *  Since the interrupt control register of a CIA is cleared
 *  when it's read, it is essential that different interrupt
 *  sources are managed from one central handler, or interrupts
 *  can get lost.
 *
 *  if you write a handler dealing with a yet unused interrupt
 *  bit (handler == not_used), enter your interrupt handler
 *  in the appropriate table below. If your handler must poll
 *  for an interrupt flag to come active, *always* call
 *  dispatch_cia_ints() afterwards with bits in the mask
 *  register your code didn't already deal with.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cia.c,v 1.9 2002/04/25 09:20:27 aymeric Exp $");

#include <sys/types.h>
#include <amiga/amiga/cia.h>
#include "par.h"
#include "kbd.h"

struct cia_intr_dispatch {
  u_char	mask;
  void		(*handler)(int);
};

vaddr_t CIAAbase, CIABbase, CIAADDR;

static void not_used(int);
void kbdintr(int);
void parintr(int);

/* handlers for CIA-A (IPL-2) */
static struct cia_intr_dispatch ciaa_ints[] = {
	{ CIA_ICR_TA,		not_used },
	{ CIA_ICR_TB,		not_used },
	{ CIA_ICR_ALARM,	not_used },
#if NKBD > 0
	{ CIA_ICR_SP,	kbdintr },
#else
	{ CIA_ICR_SP,	not_used },
#endif
#if NPAR > 0
	{ CIA_ICR_FLG,	parintr },
#else
	{ CIA_ICR_FLG,	not_used },
#endif
	{ 0,		0 },
};

/* handlers for CIA-B (IPL-6) */
static struct cia_intr_dispatch ciab_ints[] = {
	{ CIA_ICR_TA,	not_used },	/* used directly in locore.s */
	{ CIA_ICR_TB,	not_used },	/* "" */
	{ CIA_ICR_ALARM,	not_used },
	{ CIA_ICR_SP,	not_used },
	{ CIA_ICR_FLG,	not_used },
	{ 0,		0 },
};



void
dispatch_cia_ints(which, mask)
	int which;
	int mask;
{
	struct cia_intr_dispatch *disp;

	disp = (which == 0) ? ciaa_ints : ciab_ints;

	for (;disp->mask; disp++)
		if (mask & disp->mask)
			disp->handler(disp->mask);
}

void
ciaa_intr()
{
	dispatch_cia_ints (0, ciaa.icr);
}

/*
 * NOTE: ciab_intr() is *not* currently called. If you want to support
 * the FLG interrupt, which is used to indicate a disk-index
 * interrupt, you'll have to hack a call to ciab_intr() into
 * the lev6 interrupt handler in locore.s !
 */
void
ciab_intr()
{
	dispatch_cia_ints (1, ciab.icr);
}


static void
not_used (mask)
     int mask;
{
}