ata-card.c revision 90215 
1/*-
2 * Copyright (c) 1998,1999,2000,2001,2002 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/ata/ata-card.c 90215 2002-02-04 19:23:40Z sos $
29 */
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/kernel.h>
34#include <sys/disk.h>
35#include <sys/module.h>
36#include <sys/bus.h>
37#include <sys/bio.h>
38#include <sys/malloc.h>
39#include <sys/devicestat.h>
40#include <sys/sysctl.h>
41#include <machine/stdarg.h>
42#include <machine/resource.h>
43#include <machine/bus.h>
44#include <sys/rman.h>
45#include <dev/ata/ata-all.h>
46#include <dev/pccard/pccardreg.h>
47#include <dev/pccard/pccardvar.h>
48#include <dev/pccard/pccarddevs.h>
49
50static int
51ata_pccard_match(device_t dev)
52{
53    u_int32_t fcn = PCCARD_FUNCTION_UNSPEC;
54    int error = 0;
55
56    error = pccard_get_function(dev, &fcn);
57    if (error != 0)
58	return (error);
59
60    /* if it says its a disk we should register it */
61    if (fcn == PCCARD_FUNCTION_DISK)
62	return (0);
63
64    /* other devices might need to be matched here */
65
66    return(ENXIO);
67}
68
69static int
70ata_pccard_probe(device_t dev)
71{
72    struct ata_channel *ch = device_get_softc(dev);
73    struct resource *io;
74    int rid, len, start, end;
75    u_long tmp;
76
77    /* allocate the io range to get start and length */
78    rid = ATA_IOADDR_RID;
79    len = bus_get_resource_count(dev, SYS_RES_IOPORT, rid);
80    io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
81			    ATA_IOSIZE, RF_ACTIVE);
82    if (!io)
83	return ENOMEM;
84
85    /* reallocate the io address to only cover the io ports */
86    start = rman_get_start(io);
87    end = start + ATA_IOSIZE - 1;
88    bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
89    io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
90			    start, end, ATA_IOSIZE, RF_ACTIVE);
91    bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
92
93    /*
94     * if we got more than the default ATA_IOSIZE ports, this is likely
95     * a pccard system where the altio ports are located at offset 14
96     * otherwise its the normal altio offset
97     */
98    if (bus_get_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID, &tmp, &tmp)) {
99	if (len > ATA_IOSIZE) {
100	    bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
101			     start + ATA_PCCARD_ALTOFFSET, ATA_ALTIOSIZE);
102	}
103	else {
104	    bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
105			     start + ATA_ALTOFFSET, ATA_ALTIOSIZE);
106	}
107    }
108    else
109	return ENOMEM;
110
111    ch->unit = 0;
112    ch->flags |= (ATA_USE_16BIT | ATA_NO_SLAVE);
113    return ata_probe(dev);
114}
115
116static device_method_t ata_pccard_methods[] = {
117    /* device interface */
118    DEVMETHOD(device_probe,	pccard_compat_probe),
119    DEVMETHOD(device_attach,	pccard_compat_attach),
120    DEVMETHOD(device_detach,	ata_detach),
121
122    /* Card interface */
123    DEVMETHOD(card_compat_match,	ata_pccard_match),
124    DEVMETHOD(card_compat_probe,	ata_pccard_probe),
125    DEVMETHOD(card_compat_attach,	ata_attach),
126    { 0, 0 }
127};
128
129static driver_t ata_pccard_driver = {
130    "ata",
131    ata_pccard_methods,
132    sizeof(struct ata_channel),
133};
134
135DRIVER_MODULE(ata, pccard, ata_pccard_driver, ata_devclass, 0, 0);
136