pst-pci.c revision 331722 
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
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: stable/11/sys/dev/pst/pst-pci.c 331722 2018-03-29 02:50:57Z eadler $");
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/module.h>
36#include <sys/bus.h>
37#include <sys/bio.h>
38#include <sys/malloc.h>
39#include <sys/lock.h>
40#include <sys/mutex.h>
41#include <vm/vm.h>
42#include <vm/pmap.h>
43#include <machine/stdarg.h>
44#include <machine/resource.h>
45#include <machine/bus.h>
46#include <sys/rman.h>
47#include <dev/pci/pcivar.h>
48#include <dev/pci/pcireg.h>
49
50#include "dev/pst/pst-iop.h"
51
52static int
53iop_pci_probe(device_t dev)
54{
55    /* tested with actual hardware kindly donated by Promise */
56    if (pci_get_devid(dev) == 0x19628086 && pci_get_subvendor(dev) == 0x105a) {
57	device_set_desc(dev, "Promise SuperTrak SX6000 ATA RAID controller");
58	return BUS_PROBE_DEFAULT;
59    }
60
61    /* support the older SuperTrak 100 as well */
62    if (pci_get_devid(dev) == 0x19608086 && pci_get_subvendor(dev) == 0x105a) {
63	device_set_desc(dev, "Promise SuperTrak 100 ATA RAID controller");
64	return BUS_PROBE_DEFAULT;
65    }
66
67    return ENXIO;
68}
69
70static int
71iop_pci_attach(device_t dev)
72{
73    struct iop_softc *sc = device_get_softc(dev);
74    int rid;
75
76    /* get resources */
77    rid = PCIR_BAR(0);
78    sc->r_mem =
79	bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
80
81    if (!sc->r_mem)
82	return ENXIO;
83
84    rid = 0x00;
85    sc->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
86				       RF_SHAREABLE | RF_ACTIVE);
87
88    /* now setup the infrastructure to talk to the device */
89    pci_enable_busmaster(dev);
90
91    sc->ibase = rman_get_virtual(sc->r_mem);
92    sc->reg = (struct i2o_registers *)sc->ibase;
93    sc->dev = dev;
94    mtx_init(&sc->mtx, "pst lock", NULL, MTX_DEF);
95
96    if (!iop_init(sc))
97	return 0;
98    return bus_generic_attach(dev);
99}
100
101static int
102iop_pci_detach(device_t dev)
103{
104    struct iop_softc *sc = device_get_softc(dev);
105    int error;
106
107    error = bus_generic_detach(dev);
108    if (error)
109	    return (error);
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, PCIR_BAR(0), sc->r_mem);
113    mtx_destroy(&sc->mtx);
114    return (0);
115}
116
117
118static device_method_t pst_pci_methods[] = {
119    DEVMETHOD(device_probe,		iop_pci_probe),
120    DEVMETHOD(device_attach,		iop_pci_attach),
121    DEVMETHOD(device_detach,		iop_pci_detach),
122    { 0, 0 }
123};
124
125static driver_t pst_pci_driver = {
126    "pstpci",
127    pst_pci_methods,
128    sizeof(struct iop_softc),
129};
130
131static devclass_t pst_pci_devclass;
132
133DRIVER_MODULE(pstpci, pci, pst_pci_driver, pst_pci_devclass, 0, 0);
134