fdc_pccard.c revision 185235 
1/*-
2 * Copyright (c) 2004-2005 M. Warner Losh.
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 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/dev/fdc/fdc_pccard.c 185235 2008-11-23 23:04:28Z imp $");
29
30#include <sys/param.h>
31#include <sys/bio.h>
32#include <sys/bus.h>
33#include <sys/kernel.h>
34#include <sys/lock.h>
35#include <sys/module.h>
36#include <sys/mutex.h>
37#include <sys/rman.h>
38#include <sys/systm.h>
39#include <machine/bus.h>
40
41#include <machine/bus.h>
42
43#include <dev/fdc/fdcvar.h>
44#include <dev/pccard/pccardvar.h>
45#include "pccarddevs.h"
46
47static int fdc_pccard_probe(device_t);
48static int fdc_pccard_attach(device_t);
49
50static const struct pccard_product fdc_pccard_products[] = {
51	PCMCIA_CARD(YEDATA, EXTERNAL_FDD),
52};
53
54static int
55fdc_pccard_alloc_resources(device_t dev, struct fdc_data *fdc)
56{
57	struct resource *res;
58	int rid, i;
59
60	rid = 0;
61	res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0ul, ~0ul, 1,
62	    RF_ACTIVE);
63	if (res == NULL) {
64		device_printf(dev, "cannot alloc I/O port range\n");
65		return (ENXIO);
66	}
67	for (i = 0; i < FDC_MAXREG; i++) {
68		fdc->resio[i] = res;
69		fdc->ridio[i] = rid;
70		fdc->ioff[i] = i;
71		fdc->ioh[i] = rman_get_bushandle(res);
72	}
73	fdc->iot = rman_get_bustag(res);
74
75	fdc->rid_irq = 0;
76	fdc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &fdc->rid_irq,
77	    RF_ACTIVE | RF_SHAREABLE);
78	if (fdc->res_irq == NULL) {
79		device_printf(dev, "cannot reserve interrupt line\n");
80		return (ENXIO);
81	}
82	return (0);
83}
84
85static int
86fdc_pccard_probe(device_t dev)
87{
88	if (pccard_product_lookup(dev, fdc_pccard_products,
89	    sizeof(fdc_pccard_products[0]), NULL) != NULL) {
90		device_set_desc(dev, "PC Card Floppy");
91		return (0);
92	}
93	return (ENXIO);
94}
95
96static int
97fdc_pccard_attach(device_t dev)
98{
99	int error;
100	struct	fdc_data *fdc;
101	device_t child;
102
103	fdc = device_get_softc(dev);
104	fdc->flags = FDC_NODMA | FDC_NOFAST;
105	fdc->fdct = FDC_NE765;
106	error = fdc_pccard_alloc_resources(dev, fdc);
107	if (error == 0)
108		error = fdc_attach(dev);
109	if (error == 0) {
110		child = fdc_add_child(dev, "fd", -1);
111		device_set_flags(child, 0x24);
112		error = bus_generic_attach(dev);
113	}
114	if (error)
115		fdc_release_resources(fdc);
116	return (error);
117}
118
119static device_method_t fdc_pccard_methods[] = {
120	/* Device interface */
121	DEVMETHOD(device_probe,		fdc_pccard_probe),
122	DEVMETHOD(device_attach,	fdc_pccard_attach),
123	DEVMETHOD(device_detach,	fdc_detach),
124	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
125	DEVMETHOD(device_suspend,	bus_generic_suspend),
126	DEVMETHOD(device_resume,	bus_generic_resume),
127
128	/* Bus interface */
129	DEVMETHOD(bus_print_child,	fdc_print_child),
130	DEVMETHOD(bus_read_ivar,	fdc_read_ivar),
131	DEVMETHOD(bus_write_ivar,       fdc_write_ivar),
132	/* Our children never use any other bus interface methods. */
133
134	{ 0, 0 }
135};
136
137static driver_t fdc_pccard_driver = {
138	"fdc",
139	fdc_pccard_methods,
140	sizeof(struct fdc_data)
141};
142
143DRIVER_MODULE(fdc, pccard, fdc_pccard_driver, fdc_devclass, 0, 0);
144