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