1/*
2 */
3
4#include <sys/cdefs.h>
5__FBSDID("$FreeBSD: releng/11.0/sys/dev/mcd/mcd_isa.c 274676 2014-11-18 21:51:01Z jhb $");
6
7#include <sys/param.h>
8#include <sys/systm.h>
9#include <sys/kernel.h>
10#include <sys/module.h>
11#include <sys/conf.h>
12#include <sys/fcntl.h>
13#include <sys/bio.h>
14#include <sys/cdio.h>
15#include <sys/bus.h>
16
17#include <sys/lock.h>
18#include <sys/mutex.h>
19
20#include <machine/bus.h>
21#include <machine/resource.h>
22#include <sys/rman.h>
23
24#include <isa/isavar.h>
25
26#include <dev/mcd/mcdreg.h>
27#include <dev/mcd/mcdvar.h>
28
29static int	mcd_isa_probe	(device_t);
30static int	mcd_isa_attach	(device_t);
31static int	mcd_isa_detach	(device_t);
32
33static int	mcd_alloc_resources	(device_t);
34static void	mcd_release_resources	(device_t);
35
36static int
37mcd_isa_probe (device_t dev)
38{
39	struct mcd_softc *	sc;
40	int			error;
41
42	/* No pnp support */
43	if (isa_get_vendorid(dev))
44		return (ENXIO);
45
46	/* IO port must be configured. */
47	if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0)
48		return (ENXIO);
49
50	sc = device_get_softc(dev);
51	sc->dev = dev;
52	sc->port_rid = 0;
53	sc->port_type = SYS_RES_IOPORT;
54	error = mcd_alloc_resources(dev);
55	if (error)
56		goto fail;
57
58	error = mcd_probe(sc);
59	if (error) {
60		device_printf(dev, "Probe failed.\n");
61		goto fail;
62	}
63
64	device_set_desc(dev, sc->data.name);
65
66fail:
67	mcd_release_resources(dev);
68	return (error);
69}
70
71static int
72mcd_isa_attach (device_t dev)
73{
74	struct mcd_softc *	sc;
75	int			error;
76
77	sc = device_get_softc(dev);
78	error = 0;
79
80	sc->dev = dev;
81	sc->port_rid = 0;
82	sc->port_type = SYS_RES_IOPORT;
83	error = mcd_alloc_resources(dev);
84	if (error)
85		goto fail;
86
87	error = mcd_probe(sc);
88	if (error) {
89		device_printf(dev, "Re-Probe failed.\n");
90		goto fail;
91	}
92
93	error = mcd_attach(sc);
94	if (error) {
95		device_printf(dev, "Attach failed.\n");
96		goto fail;
97	}
98
99	return (0);
100fail:
101	mcd_release_resources(dev);
102	return (error);
103}
104
105static int
106mcd_isa_detach (device_t dev)
107{
108	struct mcd_softc *	sc;
109	int			error;
110
111	sc = device_get_softc(dev);
112	error = 0;
113
114	destroy_dev(sc->mcd_dev_t);
115
116	mcd_release_resources(dev);
117
118	return (error);
119}
120
121static int
122mcd_alloc_resources (device_t dev)
123{
124	struct mcd_softc *	sc;
125	int			error;
126
127	sc = device_get_softc(dev);
128	error = 0;
129	mtx_init(&sc->mtx, "mcd", NULL, MTX_DEF);
130
131	if (sc->port_type) {
132		sc->port = bus_alloc_resource_any(dev, sc->port_type,
133				&sc->port_rid, RF_ACTIVE);
134		if (sc->port == NULL) {
135			device_printf(dev, "Unable to allocate PORT resource.\n");
136			error = ENOMEM;
137			goto bad;
138		}
139	}
140
141	if (sc->irq_type) {
142		sc->irq = bus_alloc_resource_any(dev, sc->irq_type,
143				&sc->irq_rid, RF_ACTIVE);
144		if (sc->irq == NULL) {
145			device_printf(dev, "Unable to allocate IRQ resource.\n");
146			error = ENOMEM;
147			goto bad;
148		}
149	}
150
151	if (sc->drq_type) {
152		sc->drq = bus_alloc_resource_any(dev, sc->drq_type,
153				&sc->drq_rid, RF_ACTIVE);
154		if (sc->drq == NULL) {
155			device_printf(dev, "Unable to allocate DRQ resource.\n");
156			error = ENOMEM;
157			goto bad;
158		}
159	}
160
161bad:
162	return (error);
163}
164
165static void
166mcd_release_resources (device_t dev)
167{
168	struct mcd_softc *	sc;
169
170	sc = device_get_softc(dev);
171
172	if (sc->irq_ih)
173		bus_teardown_intr(dev, sc->irq, sc->irq_ih);
174	if (sc->port)
175		bus_release_resource(dev, sc->port_type, sc->port_rid, sc->port);
176	if (sc->irq)
177		bus_release_resource(dev, sc->irq_type, sc->irq_rid, sc->irq);
178	if (sc->drq)
179		bus_release_resource(dev, sc->drq_type, sc->drq_rid, sc->drq);
180
181	mtx_destroy(&sc->mtx);
182
183	return;
184}
185
186static device_method_t mcd_isa_methods[] = {
187	DEVMETHOD(device_probe,         mcd_isa_probe),
188	DEVMETHOD(device_attach,        mcd_isa_attach),
189	DEVMETHOD(device_detach,        mcd_isa_detach),
190
191	{ 0, 0 }
192};
193
194static driver_t mcd_isa_driver = {
195	"mcd",
196	mcd_isa_methods,
197	sizeof(struct mcd_softc)
198};
199
200static devclass_t	mcd_devclass;
201
202DRIVER_MODULE(mcd, isa, mcd_isa_driver, mcd_devclass, NULL, 0);
203