FreeBSD/Linux Kernel Cross Reference
sys/dev/aic/aic_cbus.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: releng/5.1/sys/dev/aic/aic_cbus.c 92739 2002-03-20 02:08:01Z alfred $
27 */
28
29 #include <sys/param.h>
30 #include <sys/kernel.h>
31 #include <sys/module.h>
32 #include <sys/bus.h>
33
34 #include <machine/bus_pio.h>
35 #include <machine/bus.h>
36 #include <machine/resource.h>
37 #include <sys/rman.h>
38
39 #include <isa/isavar.h>
40 #include <dev/aic/aic6360reg.h>
41 #include <dev/aic/aicvar.h>
42
43 struct aic_isa_softc {
44 struct aic_softc sc_aic;
45 struct resource *sc_port;
46 struct resource *sc_irq;
47 struct resource *sc_drq;
48 void *sc_ih;
49 };
50
51 static int aic_isa_alloc_resources(device_t);
52 static void aic_isa_release_resources(device_t);
53 static int aic_isa_probe(device_t);
54 static int aic_isa_attach(device_t);
55
56 #ifdef PC98
57 static u_int aic_isa_ports[] = { 0x1840 };
58 #else
59 static u_int aic_isa_ports[] = { 0x340, 0x140 };
60 #endif
61 #define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
62 #define AIC_ISA_PORTSIZE 0x20
63
64 #ifdef PC98
65 #define AIC98_GENERIC 0x00
66 #define AIC98_NEC100 0x01
67 #define AIC_TYPE98(x) (((x) >> 16) & 0x01)
68
69 static bus_addr_t aicport_generic[AIC_ISA_PORTSIZE] = {
70 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
71 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
72 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
73 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
74 };
75 static bus_addr_t aicport_100[AIC_ISA_PORTSIZE] = {
76 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
77 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
78 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e,
79 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
80 };
81 #endif
82
83 static struct isa_pnp_id aic_ids[] = {
84 { 0xa180a3b8, "NEC PC9801-100" },
85 { 0 }
86 };
87
88 static int
89 aic_isa_alloc_resources(device_t dev)
90 {
91 struct aic_isa_softc *sc = device_get_softc(dev);
92 int rid;
93 #ifdef PC98
94 bus_addr_t *bs_iat;
95
96 if ((isa_get_logicalid(dev) == 0xa180a3b8) ||
97 (AIC_TYPE98(device_get_flags(dev)) == AIC98_NEC100))
98 bs_iat = aicport_100;
99 else
100 bs_iat = aicport_generic;
101 #endif
102
103 sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
104
105 rid = 0;
106 #ifdef PC98
107 sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
108 bs_iat, AIC_ISA_PORTSIZE, RF_ACTIVE);
109 #else
110 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
111 0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE);
112 #endif
113 if (!sc->sc_port) {
114 device_printf(dev, "I/O port allocation failed\n");
115 return (ENOMEM);
116 }
117 #ifdef PC98
118 isa_load_resourcev(sc->sc_port, bs_iat, AIC_ISA_PORTSIZE);
119 #endif
120
121 if (isa_get_irq(dev) != -1) {
122 rid = 0;
123 sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
124 0ul, ~0ul, 1, RF_ACTIVE);
125 if (!sc->sc_irq) {
126 device_printf(dev, "IRQ allocation failed\n");
127 aic_isa_release_resources(dev);
128 return (ENOMEM);
129 }
130 }
131
132 if (isa_get_drq(dev) != -1) {
133 rid = 0;
134 sc->sc_drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid,
135 0ul, ~0ul, 1, RF_ACTIVE);
136 if (!sc->sc_drq) {
137 device_printf(dev, "DRQ allocation failed\n");
138 aic_isa_release_resources(dev);
139 return (ENOMEM);
140 }
141 }
142
143 sc->sc_aic.unit = device_get_unit(dev);
144 sc->sc_aic.tag = rman_get_bustag(sc->sc_port);
145 sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port);
146 return (0);
147 }
148
149 static void
150 aic_isa_release_resources(device_t dev)
151 {
152 struct aic_isa_softc *sc = device_get_softc(dev);
153
154 if (sc->sc_port)
155 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
156 if (sc->sc_irq)
157 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
158 if (sc->sc_drq)
159 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
160 sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
161 }
162
163 static int
164 aic_isa_probe(device_t dev)
165 {
166 struct aic_isa_softc *sc = device_get_softc(dev);
167 struct aic_softc *aic = &sc->sc_aic;
168 int numports, i;
169 u_int port, *ports;
170 u_int8_t porta;
171
172 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
173 return (ENXIO);
174
175 port = isa_get_port(dev);
176 if (port != -1) {
177 ports = &port;
178 numports = 1;
179 } else {
180 ports = aic_isa_ports;
181 numports = AIC_ISA_NUMPORTS;
182 }
183
184 for (i = 0; i < numports; i++) {
185 #ifdef PC98
186 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1))
187 continue;
188 #else
189 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i],
190 AIC_ISA_PORTSIZE))
191 continue;
192 #endif
193 if (aic_isa_alloc_resources(dev))
194 continue;
195 if (!aic_probe(aic)) {
196 aic_isa_release_resources(dev);
197 break;
198 }
199 aic_isa_release_resources(dev);
200 }
201
202 if (i == numports)
203 return (ENXIO);
204
205 porta = aic_inb(aic, PORTA);
206 if (isa_get_irq(dev) == -1)
207 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
208 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
209 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
210 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
211 return (0);
212 }
213
214 static int
215 aic_isa_attach(device_t dev)
216 {
217 struct aic_isa_softc *sc = device_get_softc(dev);
218 struct aic_softc *aic = &sc->sc_aic;
219 int error;
220
221 error = aic_isa_alloc_resources(dev);
222 if (error) {
223 device_printf(dev, "resource allocation failed\n");
224 return (error);
225 }
226
227 error = aic_attach(aic);
228 if (error) {
229 device_printf(dev, "attach failed\n");
230 aic_isa_release_resources(dev);
231 return (error);
232 }
233
234 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY,
235 aic_intr, aic, &sc->sc_ih);
236 if (error) {
237 device_printf(dev, "failed to register interrupt handler\n");
238 aic_isa_release_resources(dev);
239 return (error);
240 }
241 return (0);
242 }
243
244 static int
245 aic_isa_detach(device_t dev)
246 {
247 struct aic_isa_softc *sc = device_get_softc(dev);
248 struct aic_softc *aic = &sc->sc_aic;
249 int error;
250
251 error = aic_detach(aic);
252 if (error) {
253 device_printf(dev, "detach failed\n");
254 return (error);
255 }
256
257 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
258 if (error) {
259 device_printf(dev, "failed to unregister interrupt handler\n");
260 }
261
262 aic_isa_release_resources(dev);
263 return (0);
264 }
265
266 static device_method_t aic_isa_methods[] = {
267 /* Device interface */
268 DEVMETHOD(device_probe, aic_isa_probe),
269 DEVMETHOD(device_attach, aic_isa_attach),
270 DEVMETHOD(device_detach, aic_isa_detach),
271 { 0, 0 }
272 };
273
274 static driver_t aic_isa_driver = {
275 "aic",
276 aic_isa_methods, sizeof(struct aic_isa_softc),
277 };
278
279 extern devclass_t aic_devclass;
280
281 MODULE_DEPEND(aic, cam, 1,1,1);
282 DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);
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