File: [local] / sys / dev / pci / pwdog.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:13:47 2008 UTC (16 years, 5 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: pwdog.c,v 1.6 2006/12/17 15:56:23 mbalmer Exp $ */
/*
* Copyright (c) 2006 Marc Balmer <mbalmer@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
struct pwdog_softc {
struct device pwdog_dev;
bus_space_tag_t iot;
bus_space_handle_t ioh;
};
/* registers */
#define PWDOG_ACTIVATE 0
#define PWDOG_DISABLE 1
int pwdog_probe(struct device *, void *, void *);
void pwdog_attach(struct device *, struct device *, void *);
int pwdog_set_timeout(void *, int);
struct cfattach pwdog_ca = {
sizeof(struct pwdog_softc), pwdog_probe, pwdog_attach
};
struct cfdriver pwdog_cd = {
NULL, "pwdog", DV_DULL
};
const struct pci_matchid pwdog_devices[] = {
{ PCI_VENDOR_QUANCOM, PCI_PRODUCT_QUANCOM_PWDOG1 }
};
int
pwdog_probe(struct device *parent, void *match, void *aux)
{
return pci_matchbyid((struct pci_attach_args *)aux, pwdog_devices,
sizeof(pwdog_devices) / sizeof(pwdog_devices[0]));
}
void
pwdog_attach(struct device *parent, struct device *self, void *aux)
{
struct pwdog_softc *pwdog = (struct pwdog_softc *)self;
struct pci_attach_args *const pa = (struct pci_attach_args *)aux;
pcireg_t memtype;
bus_size_t iosize;
memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, PCI_MAPREG_START);
if (pci_mapreg_map(pa, PCI_MAPREG_START, memtype, 0, &pwdog->iot,
&pwdog->ioh, NULL, &iosize, 0)) {
printf("\n%s: PCI %s region not found\n",
pwdog->pwdog_dev.dv_xname,
memtype == PCI_MAPREG_TYPE_IO ? "I/O" : "memory");
return;
}
printf("\n");
bus_space_write_1(pwdog->iot, pwdog->ioh, PWDOG_DISABLE, 0);
wdog_register(pwdog, pwdog_set_timeout);
}
int
pwdog_set_timeout(void *self, int seconds)
{
struct pwdog_softc *pwdog = (struct pwdog_softc *)self;
int s;
s = splclock();
if (seconds)
bus_space_write_1(pwdog->iot, pwdog->ioh, PWDOG_ACTIVATE, 0);
else
bus_space_write_1(pwdog->iot, pwdog->ioh, PWDOG_DISABLE, 0);
splx(s);
return seconds;
}