FreeBSD/Linux Kernel Cross Reference
sys/dev/aic/aic_isa.c
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 * $FreeBSD$
27 */
28
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/kernel.h>
32 #include <sys/module.h>
33 #include <sys/bus.h>
34
35 #include <machine/bus_pio.h>
36 #include <machine/bus.h>
37 #include <machine/resource.h>
38 #include <sys/rman.h>
39
40 #include <isa/isavar.h>
41 #include <dev/aic/aic6360reg.h>
42 #include <dev/aic/aicvar.h>
43
44 struct aic_isa_softc {
45 struct aic_softc sc_aic;
46 struct resource *sc_port;
47 struct resource *sc_irq;
48 struct resource *sc_drq;
49 void *sc_ih;
50 };
51
52 static int aic_isa_alloc_resources __P((device_t));
53 static void aic_isa_release_resources __P((device_t));
54 static int aic_isa_probe __P((device_t));
55 static int aic_isa_attach __P((device_t));
56
57 static u_int aic_isa_ports[] = { 0x340, 0x140 };
58 #define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
59 #define AIC_ISA_PORTSIZE 0x20
60
61 static int
62 aic_isa_alloc_resources(device_t dev)
63 {
64 struct aic_isa_softc *sc = device_get_softc(dev);
65 int rid;
66
67 sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
68
69 rid = 0;
70 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
71 0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE);
72 if (!sc->sc_port)
73 return (ENOMEM);
74
75 if (isa_get_irq(dev) != -1) {
76 rid = 0;
77 sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
78 0ul, ~0ul, 1, RF_ACTIVE);
79 if (!sc->sc_irq) {
80 aic_isa_release_resources(dev);
81 return (ENOMEM);
82 }
83 }
84
85 if (isa_get_drq(dev) != -1) {
86 rid = 0;
87 sc->sc_drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid,
88 0ul, ~0ul, 1, RF_ACTIVE);
89 if (!sc->sc_drq) {
90 aic_isa_release_resources(dev);
91 return (ENOMEM);
92 }
93 }
94
95 sc->sc_aic.unit = device_get_unit(dev);
96 sc->sc_aic.tag = rman_get_bustag(sc->sc_port);
97 sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port);
98 return (0);
99 }
100
101 static void
102 aic_isa_release_resources(device_t dev)
103 {
104 struct aic_isa_softc *sc = device_get_softc(dev);
105
106 if (sc->sc_port)
107 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
108 if (sc->sc_irq)
109 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
110 if (sc->sc_drq)
111 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
112 sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
113 }
114
115 static int
116 aic_isa_probe(device_t dev)
117 {
118 struct aic_isa_softc *sc = device_get_softc(dev);
119 struct aic_softc *aic = &sc->sc_aic;
120 int numports, i;
121 u_int port, *ports;
122 u_int8_t porta;
123
124 if (isa_get_vendorid(dev))
125 return (ENXIO);
126
127 port = isa_get_port(dev);
128 if (port != -1) {
129 ports = &port;
130 numports = 1;
131 } else {
132 ports = aic_isa_ports;
133 numports = AIC_ISA_NUMPORTS;
134 }
135
136 for (i = 0; i < numports; i++) {
137 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i],
138 AIC_ISA_PORTSIZE))
139 continue;
140 if (aic_isa_alloc_resources(dev))
141 continue;
142 if (!aic_probe(aic)) {
143 aic_isa_release_resources(dev);
144 break;
145 }
146 aic_isa_release_resources(dev);
147 }
148
149 if (i == numports)
150 return (ENXIO);
151
152 porta = aic_inb(aic, PORTA);
153 if (isa_get_irq(dev) == -1)
154 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
155 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
156 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
157 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
158 return (0);
159 }
160
161 static int
162 aic_isa_attach(device_t dev)
163 {
164 struct aic_isa_softc *sc = device_get_softc(dev);
165 struct aic_softc *aic = &sc->sc_aic;
166 int error;
167
168 error = aic_isa_alloc_resources(dev);
169 if (error) {
170 device_printf(dev, "resource allocation failed\n");
171 return (error);
172 }
173
174 error = aic_attach(aic);
175 if (error) {
176 device_printf(dev, "attach failed\n");
177 aic_isa_release_resources(dev);
178 return (error);
179 }
180
181 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM, aic_intr,
182 aic, &sc->sc_ih);
183 if (error) {
184 device_printf(dev, "failed to register interrupt handler\n");
185 aic_isa_release_resources(dev);
186 return (error);
187 }
188 return (0);
189 }
190
191 static int
192 aic_isa_detach(device_t dev)
193 {
194 struct aic_isa_softc *sc = device_get_softc(dev);
195 struct aic_softc *aic = &sc->sc_aic;
196 int error;
197
198 error = aic_detach(aic);
199 if (error) {
200 device_printf(dev, "detach failed\n");
201 return (error);
202 }
203
204 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
205 if (error) {
206 device_printf(dev, "failed to unregister interrupt handler\n");
207 }
208
209 aic_isa_release_resources(dev);
210 return (0);
211 }
212
213 static device_method_t aic_isa_methods[] = {
214 /* Device interface */
215 DEVMETHOD(device_probe, aic_isa_probe),
216 DEVMETHOD(device_attach, aic_isa_attach),
217 DEVMETHOD(device_detach, aic_isa_detach),
218 { 0, 0 }
219 };
220
221 static driver_t aic_isa_driver = {
222 "aic",
223 aic_isa_methods, sizeof(struct aic_isa_softc),
224 };
225
226 extern devclass_t aic_devclass;
227
228 DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);
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