summaryrefslogtreecommitdiffstats
path: root/sys/dev/ata/ata-card.c
blob: f616a0f83b1e3d30f9fc0c1b5c93fbb16a838740 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
/*-
 * Copyright (c) 1998 - 2003 Søren Schmidt <sos@FreeBSD.org>
 * 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,
 *    without modification, immediately at the beginning of the file.
 * 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.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * 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.
 *
 * $FreeBSD$
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ata.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <dev/ata/ata-all.h>
#include <dev/pccard/pccardreg.h>
#include <dev/pccard/pccardvar.h>
#include <dev/pccard/pccarddevs.h>

static int
ata_pccard_match(device_t dev)
{
    u_int32_t fcn = PCCARD_FUNCTION_UNSPEC;
    int error = 0;

    error = pccard_get_function(dev, &fcn);
    if (error != 0)
	return (error);

    /* if it says its a disk we should register it */
    if (fcn == PCCARD_FUNCTION_DISK)
	return (0);

    /* other devices might need to be matched here */
    return(ENXIO);
}

static void
ata_pccard_locknoop(struct ata_channel *ch, int type)
{
}

static void
ata_pccard_setmode(struct ata_device *atadev, int mode)
{
    atadev->mode = ata_limit_mode(atadev, mode, ATA_PIO_MAX);
}

static int
ata_pccard_probe(device_t dev)
{
    struct ata_channel *ch = device_get_softc(dev);
    struct resource *io, *altio;
    int i, rid, len, start, end;
    u_long tmp;

    /* allocate the io range to get start and length */
    rid = ATA_IOADDR_RID;
    len = bus_get_resource_count(dev, SYS_RES_IOPORT, rid);
    io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
			    ATA_IOSIZE, RF_ACTIVE);
    if (!io)
	return ENXIO;

    /* reallocate the io address to only cover the io ports */
    start = rman_get_start(io);
    end = start + ATA_IOSIZE - 1;
    bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
    io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
			    start, end, ATA_IOSIZE, RF_ACTIVE);

    /* 
     * if we got more than the default ATA_IOSIZE ports, this is likely
     * a pccard system where the altio ports are located at offset 14
     * otherwise its the normal altio offset
     */
    if (bus_get_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID, &tmp, &tmp)) {
	if (len > ATA_IOSIZE) {
	    bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
			     start + ATA_PCCARD_ALTOFFSET, ATA_ALTIOSIZE);
	}
	else {
	    bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID, 
			     start + ATA_ALTOFFSET, ATA_ALTIOSIZE);
	}
    }
    else {
	bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
	return ENXIO;
    }

    /* allocate the altport range */
    rid = ATA_ALTADDR_RID;
    altio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
			       ATA_ALTIOSIZE, RF_ACTIVE);
    if (!altio) {
	bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
	return ENXIO;
    }

    /* setup the resource vectors */
    for (i = ATA_DATA; i <= ATA_STATUS; i++) {
	ch->r_io[i].res = io;
	ch->r_io[i].offset = i;
    }
    ch->r_io[ATA_ALTSTAT].res = altio;
    ch->r_io[ATA_ALTSTAT].offset = 0;

    /* initialize softc for this channel */
    ch->unit = 0;
    ch->flags |= (ATA_USE_16BIT | ATA_NO_SLAVE);
    ch->locking = ata_pccard_locknoop;
    ch->device[MASTER].setmode = ata_pccard_setmode;
    ch->device[SLAVE].setmode = ata_pccard_setmode;
    return ata_probe(dev);
}

static int
ata_pccard_detach(device_t dev)
{
    struct ata_channel *ch = device_get_softc(dev);
    int i;

    ata_detach(dev);
    bus_release_resource(dev, SYS_RES_IOPORT,
			 ATA_ALTADDR_RID, ch->r_io[ATA_ALTSTAT].res);
    bus_release_resource(dev, SYS_RES_IOPORT,
			 ATA_IOADDR_RID, ch->r_io[ATA_DATA].res);
    for (i = ATA_DATA; i <= ATA_MAX_RES; i++)
	ch->r_io[i].res = NULL;
    return 0;
}

static device_method_t ata_pccard_methods[] = {
    /* device interface */
    DEVMETHOD(device_probe,	pccard_compat_probe),
    DEVMETHOD(device_attach,	pccard_compat_attach),
    DEVMETHOD(device_detach,	ata_pccard_detach),

    /* Card interface */
    DEVMETHOD(card_compat_match,	ata_pccard_match),
    DEVMETHOD(card_compat_probe,	ata_pccard_probe),
    DEVMETHOD(card_compat_attach,	ata_attach),
    { 0, 0 }
};

static driver_t ata_pccard_driver = {
    "ata",
    ata_pccard_methods,
    sizeof(struct ata_channel),
};

DRIVER_MODULE(ata, pccard, ata_pccard_driver, ata_devclass, 0, 0);
OpenPOWER on IntegriCloud