pst-pci.c revision 114154 
1/*-
2 * Copyright (c) 2001,2002,2003 S�ren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer,
10 *    without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/dev/pst/pst-pci.c 114154 2003-04-28 08:10:27Z sos $
29 */
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/kernel.h>
34#include <sys/module.h>
35#include <sys/bus.h>
36#include <sys/bio.h>
37#include <sys/malloc.h>
38#include <sys/lock.h>
39#include <sys/mutex.h>
40#include <vm/vm.h>
41#include <vm/pmap.h>
42#include <machine/stdarg.h>
43#include <machine/resource.h>
44#include <machine/bus.h>
45#include <sys/rman.h>
46#include <pci/pcivar.h>
47#include <pci/pcireg.h>
48
49#include "dev/pst/pst-iop.h"
50
51static int
52iop_pci_probe(device_t dev)
53{
54    /* tested with actual hardware kindly donated by Promise */
55    if (pci_get_devid(dev) == 0x19628086 && pci_get_subvendor(dev) == 0x105a) {
56	device_set_desc(dev, "Promise SuperTrak SX6000 ATA RAID controller");
57	return 0;
58    }
59
60    /* support the older SuperTrak 100 as well */
61    if (pci_get_devid(dev) == 0x19608086 && pci_get_subvendor(dev) == 0x105a) {
62	device_set_desc(dev, "Promise SuperTrak 100 ATA RAID controller");
63	return 0;
64    }
65
66    return ENXIO;
67}
68
69static int
70iop_pci_attach(device_t dev)
71{
72    struct iop_softc *sc = device_get_softc(dev);
73    int rid;
74
75    bzero(sc, sizeof(struct iop_softc));
76
77    /* get resources */
78    rid = 0x10;
79    sc->r_mem =
80	bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0, 1, RF_ACTIVE);
81
82    if (!sc->r_mem)
83	return 0;
84
85    rid = 0x00;
86    sc->r_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0,
87				   1, RF_SHAREABLE | RF_ACTIVE);
88
89    /* now setup the infrastructure to talk to the device */
90    pci_write_config(dev, PCIR_COMMAND,
91		     pci_read_config(dev, PCIR_COMMAND, 1) |
92		     PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN, 1);
93
94    sc->ibase = rman_get_virtual(sc->r_mem);
95    sc->phys_ibase = vtophys(sc->ibase);
96    sc->reg = (struct i2o_registers *)sc->ibase;
97    sc->dev = dev;
98    mtx_init(&sc->mtx, "pst lock", MTX_DEF, 0);
99
100    if (!iop_init(sc))
101	return 0;
102    return bus_generic_attach(dev);
103}
104
105static int
106iop_pci_detach(device_t dev)
107{
108    struct iop_softc *sc = device_get_softc(dev);
109
110    bus_teardown_intr(dev, sc->r_irq, sc->handle);
111    bus_release_resource(dev, SYS_RES_IRQ, 0x00, sc->r_irq);
112    bus_release_resource(dev, SYS_RES_MEMORY, 0x10, sc->r_mem);
113    return bus_generic_detach(dev);
114}
115
116
117static device_method_t pst_pci_methods[] = {
118    DEVMETHOD(device_probe,		iop_pci_probe),
119    DEVMETHOD(device_attach,		iop_pci_attach),
120    DEVMETHOD(device_detach,		iop_pci_detach),
121    { 0, 0 }
122};
123
124static driver_t pst_pci_driver = {
125    "pstpci",
126    pst_pci_methods,
127    sizeof(struct iop_softc),
128};
129
130static devclass_t pst_pci_devclass;
131
132DRIVER_MODULE(pstpci, pci, pst_pci_driver, pst_pci_devclass, 0, 0);
133