freebsd-dev/sys/alpha/tc/tcasic.c
Peter Wemm 6182fdbda8 Bring the 'new-bus' to the i386. This extensively changes the way the
i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition.  eisa, isapnp and pccard* are
not yet using the new resource manager.  Once fully converted, all drivers
will be loadable, including PCI and ISA.

(Some other changes appear to have snuck in, including a port of Soren's
 ATA driver to the Alpha.  Soren, back this out if you need to.)

This is a checkpoint of work-in-progress, but is quite functional.

The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.

Approved by:	core
1999-04-16 21:22:55 +00:00

115 lines
3.0 KiB
C

/* $Id: tcasic.c,v 1.1 1998/08/20 08:27:11 dfr Exp $ */
/* from $NetBSD: tcasic.c,v 1.23 1998/05/14 00:01:31 thorpej Exp $ */
/*
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include "opt_cpu.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/rpb.h>
/*#include <alpha/tc/dwlpxreg.h>*/
#define KV(pa) ALPHA_PHYS_TO_K0SEG(pa)
static devclass_t tcasic_devclass;
static device_t tcasic0; /* XXX only one for now */
struct tcasic_softc {
vm_offset_t dmem_base; /* dense memory */
vm_offset_t smem_base; /* sparse memory */
vm_offset_t io_base; /* sparse i/o */
vm_offset_t cfg_base; /* sparse pci config */
};
#define TCASIC_SOFTC(dev) (struct tcasic_softc*) device_get_softc(dev)
static int tcasic_probe(device_t dev);
static int tcasic_attach(device_t dev);
static void tcasic_print_child(device_t bus, device_t dev);
static device_method_t tcasic_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, tcasic_probe),
DEVMETHOD(device_attach, tcasic_attach),
DEVMETHOD(bus_print_child, tcasic_print_child),
{ 0, 0 }
};
static driver_t tcasic_driver = {
"tcasic",
tcasic_methods,
DRIVER_TYPE_MISC,
sizeof(struct tcasic_softc),
};
extern device_t tc0;
static int
tcasic_probe(device_t dev)
{
if (tcasic0)
return ENXIO;
if((hwrpb->rpb_type != ST_DEC_3000_300) &&
(hwrpb->rpb_type != ST_DEC_3000_500))
return ENXIO;
tcasic0 = dev;
device_set_desc(dev, "Turbochannel Host Bus Adapter");
tc0 = device_add_child(dev, "tc", 0, 0);
return 0;
}
static int
tcasic_attach(device_t dev)
{
struct tcasic_softc* sc = TCASIC_SOFTC(dev);
device_t parent = device_get_parent(dev);
vm_offset_t regs;
tcasic0 = dev;
/* chipset = tcasic_chipset;*/
device_probe_and_attach(tc0);
return 0;
}
static void
tcasic_print_child(device_t bus, device_t dev)
{
printf(" at %s%d",
device_get_name(bus), device_get_unit(bus));
}
DRIVER_MODULE(tcasic, root, tcasic_driver, tcasic_devclass, 0, 0);