1/*-
2 * Copyright (c) 1999 Luoqi Chen.
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: releng/10.3/sys/dev/aic/aic_isa.c 241591 2012-10-15 16:09:59Z jhb $");
29
30#include <sys/param.h>
31#include <sys/callout.h>
32#include <sys/kernel.h>
33#include <sys/lock.h>
34#include <sys/module.h>
35#include <sys/mutex.h>
36#include <sys/bus.h>
37
38#include <machine/bus.h>
39#include <machine/resource.h>
40#include <sys/rman.h>
41
42#include <isa/isavar.h>
43#include <dev/aic/aic6360reg.h>
44#include <dev/aic/aicvar.h>
45
46struct aic_isa_softc {
47	struct	aic_softc sc_aic;
48	struct	resource *sc_port;
49	struct	resource *sc_irq;
50	struct	resource *sc_drq;
51	void	*sc_ih;
52};
53
54static int aic_isa_alloc_resources(device_t);
55static void aic_isa_release_resources(device_t);
56static int aic_isa_probe(device_t);
57static int aic_isa_attach(device_t);
58
59static u_int aic_isa_ports[] = { 0x340, 0x140 };
60#define	AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
61#define	AIC_ISA_PORTSIZE 0x20
62
63static struct isa_pnp_id aic_ids[] = {
64	{ 0x15309004, "Adaptec AHA-1530P" },
65	{ 0x15209004, "Adaptec AHA-1520P" },
66 	{ 0 }
67};
68
69static int
70aic_isa_alloc_resources(device_t dev)
71{
72	struct aic_isa_softc *sc = device_get_softc(dev);
73	int rid;
74
75	sc->sc_port = sc->sc_irq = sc->sc_drq = NULL;
76
77	rid = 0;
78	sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
79					0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE);
80	if (!sc->sc_port) {
81		device_printf(dev, "I/O port allocation failed\n");
82		return (ENOMEM);
83	}
84
85	if (isa_get_irq(dev) != -1) {
86		rid = 0;
87		sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
88						    RF_ACTIVE);
89		if (!sc->sc_irq) {
90			device_printf(dev, "IRQ allocation failed\n");
91			aic_isa_release_resources(dev);
92			return (ENOMEM);
93		}
94	}
95
96	if (isa_get_drq(dev) != -1) {
97		rid = 0;
98		sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
99						    RF_ACTIVE);
100		if (!sc->sc_drq) {
101			device_printf(dev, "DRQ allocation failed\n");
102			aic_isa_release_resources(dev);
103			return (ENOMEM);
104		}
105	}
106
107	sc->sc_aic.dev = dev;
108	sc->sc_aic.res = sc->sc_port;
109	mtx_init(&sc->sc_aic.lock, "aic", NULL, MTX_DEF);
110	return (0);
111}
112
113static void
114aic_isa_release_resources(device_t dev)
115{
116	struct aic_isa_softc *sc = device_get_softc(dev);
117
118	if (sc->sc_port)
119		bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
120	if (sc->sc_irq)
121		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
122	if (sc->sc_drq)
123		bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
124	sc->sc_port = sc->sc_irq = sc->sc_drq = NULL;
125	mtx_destroy(&sc->sc_aic.lock);
126}
127
128static int
129aic_isa_probe(device_t dev)
130{
131	struct aic_isa_softc *sc = device_get_softc(dev);
132	struct aic_softc *aic = &sc->sc_aic;
133	int numports, i;
134	u_int port, *ports;
135	u_int8_t porta;
136
137	if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
138		return (ENXIO);
139
140	port = isa_get_port(dev);
141	if (port != -1) {
142		ports = &port;
143		numports = 1;
144	} else {
145		ports = aic_isa_ports;
146		numports = AIC_ISA_NUMPORTS;
147	}
148
149	for (i = 0; i < numports; i++) {
150		if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i],
151				     AIC_ISA_PORTSIZE))
152			continue;
153		if (aic_isa_alloc_resources(dev))
154			continue;
155		if (aic_probe(aic) == 0)
156			break;
157		aic_isa_release_resources(dev);
158	}
159
160	if (i == numports)
161		return (ENXIO);
162
163	porta = aic_inb(aic, PORTA);
164	aic_isa_release_resources(dev);
165	if (isa_get_irq(dev) == -1)
166		bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
167	if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
168		bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
169	device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
170	return (0);
171}
172
173static int
174aic_isa_attach(device_t dev)
175{
176	struct aic_isa_softc *sc = device_get_softc(dev);
177	struct aic_softc *aic = &sc->sc_aic;
178	int error;
179
180	error = aic_isa_alloc_resources(dev);
181	if (error) {
182		device_printf(dev, "resource allocation failed\n");
183		return (error);
184	}
185
186	error = aic_attach(aic);
187	if (error) {
188		device_printf(dev, "attach failed\n");
189		aic_isa_release_resources(dev);
190		return (error);
191	}
192
193	error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM | INTR_ENTROPY |
194	    INTR_MPSAFE, NULL, aic_intr, aic, &sc->sc_ih);
195	if (error) {
196		device_printf(dev, "failed to register interrupt handler\n");
197		aic_isa_release_resources(dev);
198		return (error);
199	}
200	return (0);
201}
202
203static int
204aic_isa_detach(device_t dev)
205{
206	struct aic_isa_softc *sc = device_get_softc(dev);
207	struct aic_softc *aic = &sc->sc_aic;
208	int error;
209
210	error = aic_detach(aic);
211	if (error) {
212		device_printf(dev, "detach failed\n");
213		return (error);
214	}
215
216	error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
217	if (error) {
218		device_printf(dev, "failed to unregister interrupt handler\n");
219	}
220
221	aic_isa_release_resources(dev);
222	return (0);
223}
224
225static device_method_t aic_isa_methods[] = {
226	/* Device interface */
227	DEVMETHOD(device_probe,		aic_isa_probe),
228	DEVMETHOD(device_attach,	aic_isa_attach),
229	DEVMETHOD(device_detach,	aic_isa_detach),
230	{ 0, 0 }
231};
232
233static driver_t aic_isa_driver = {
234	"aic",
235	aic_isa_methods, sizeof(struct aic_isa_softc),
236};
237
238extern devclass_t aic_devclass;
239
240MODULE_DEPEND(aic, cam, 1,1,1);
241DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);
242