File: [local] / sys / arch / mvme68k / dev / vmes.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:43 2008 UTC (16 years, 6 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)
|
/* $OpenBSD: vmes.c,v 1.14 2005/11/24 22:43:16 miod Exp $ */
/*
* Copyright (c) 1995 Theo de Raadt
* 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.
*
* 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.
*/
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/conf.h>
#include <machine/cpu.h>
#include <mvme68k/dev/vme.h>
/*
* The VMES driver deals with D16 transfers on the VME bus. The number
* of address bits (A16, A24, A32) is irrelevant since the mapping
* functions will decide how many address bits are relevant.
*/
void vmesattach(struct device *, struct device *, void *);
int vmesmatch(struct device *, void *, void *);
int vmesscan(struct device *, void *, void *);
struct cfattach vmes_ca = {
sizeof(struct vmessoftc), vmesmatch, vmesattach
};
struct cfdriver vmes_cd = {
NULL, "vmes", DV_DULL
};
int
vmesmatch(parent, cf, args)
struct device *parent;
void *cf, *args;
{
return (1);
}
int
vmesscan(parent, child, args)
struct device *parent;
void *child, *args;
{
return (vmescan(parent, child, args, BUS_VMES));
}
void
vmesattach(parent, self, args)
struct device *parent, *self;
void *args;
{
struct vmessoftc *sc = (struct vmessoftc *)self;
printf("\n");
sc->sc_vme = (struct vmesoftc *)parent;
config_search(vmesscan, self, args);
}
/*ARGSUSED*/
int
vmesopen(dev, flag, mode, p)
dev_t dev;
int flag, mode;
struct proc *p;
{
if (minor(dev) >= vmes_cd.cd_ndevs ||
vmes_cd.cd_devs[minor(dev)] == NULL)
return (ENODEV);
return (0);
}
/*ARGSUSED*/
int
vmesclose(dev, flag, mode, p)
dev_t dev;
int flag, mode;
struct proc *p;
{
return (0);
}
/*ARGSUSED*/
int
vmesioctl(dev, cmd, data, flag, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
int error = 0;
switch (cmd) {
default:
error = ENOTTY;
break;
}
return (error);
}
int
vmesread(dev, uio, flags)
dev_t dev;
struct uio *uio;
int flags;
{
int unit = minor(dev);
struct vmessoftc *sc = (struct vmessoftc *) vmes_cd.cd_devs[unit];
return (vmerw(sc->sc_vme, uio, flags, BUS_VMES));
}
int
vmeswrite(dev, uio, flags)
dev_t dev;
struct uio *uio;
int flags;
{
int unit = minor(dev);
struct vmessoftc *sc = (struct vmessoftc *) vmes_cd.cd_devs[unit];
return (vmerw(sc->sc_vme, uio, flags, BUS_VMES));
}
paddr_t
vmesmmap(dev, off, prot)
dev_t dev;
off_t off;
int prot;
{
int unit = minor(dev);
struct vmessoftc *sc = (struct vmessoftc *) vmes_cd.cd_devs[unit];
paddr_t pa;
pa = vmepmap(sc->sc_vme, (vaddr_t)off, NBPG, BUS_VMES);
if (pa == 0)
return (-1);
return (atop(pa));
}