File: [local] / sys / arch / arm / include / softintr.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:05:17 2008 UTC (16 years, 4 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
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/* $OpenBSD: softintr.h,v 1.2 2007/05/10 17:59:24 deraadt Exp $ */
/* $NetBSD: softintr.h,v 1.1 2002/01/29 22:54:14 thorpej Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* 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 for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*/
#ifndef _ARM_SOFTINTR_H_
#define _ARM_SOFTINTR_H_
#ifdef _KERNEL
/*
* Generic software interrupt support for all ARM platforms.
*
* To use this code, include <arm/softintr.h> from your platform's
* <machine/intr.h>.
*/
#define SI_SOFT 0 /* for IPL_SOFT */
#define SI_SOFTCLOCK 1 /* for IPL_SOFTCLOCK */
#define SI_SOFTNET 2 /* for IPL_SOFTNET */
#define SI_SOFTSERIAL 3 /* for IPL_SOFTSERIAL */
#define SI_NQUEUES 4
#define SI_QUEUENAMES { \
"generic", \
"clock", \
"net", \
"serial", \
}
struct soft_intrhand {
TAILQ_ENTRY(soft_intrhand) sih_list;
void (*sih_func)(void *);
void *sih_arg;
struct soft_intrq *sih_siq;
int sih_pending;
};
struct soft_intrq {
TAILQ_HEAD(, soft_intrhand) siq_list;
int siq_si;
};
void *softintr_establish(int, void (*)(void *), void *);
void softintr_disestablish(void *);
void softintr_init(void);
void softintr_dispatch(int);
#define softintr_schedule(arg) \
do { \
struct soft_intrhand *__sih = (arg); \
struct soft_intrq *__siq = __sih->sih_siq; \
int __s; \
\
__s = splhigh(); \
if (__sih->sih_pending == 0) { \
TAILQ_INSERT_TAIL(&__siq->siq_list, __sih, sih_list); \
__sih->sih_pending = 1; \
_setsoftintr(__siq->siq_si); \
} \
splx(__s); \
} while (/*CONSTCOND*/0)
/* XXX For legacy software interrupts. */
extern struct soft_intrhand *softnet_intrhand;
#define setsoftnet() softintr_schedule(softnet_intrhand)
#endif /* _KERNEL */
#endif /* _ARM_SOFTINTR_H_ */