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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: releng/11.2/sys/dev/aic/aic_cbus.c 298431 2016-04-21 19:40:10Z pfg $");
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
46 struct 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
54 static int aic_isa_alloc_resources(device_t);
55 static void aic_isa_release_resources(device_t);
56 static int aic_isa_probe(device_t);
57 static int aic_isa_attach(device_t);
58
59 static u_int aic_isa_ports[] = { 0x1840 };
60
61 #define AIC_ISA_NUMPORTS nitems(aic_isa_ports)
62 #define AIC_ISA_PORTSIZE 0x20
63
64 #define AIC98_GENERIC 0x00
65 #define AIC98_NEC100 0x01
66 #define AIC_TYPE98(x) (((x) >> 16) & 0x01)
67
68 static bus_addr_t aicport_generic[AIC_ISA_PORTSIZE] = {
69 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
70 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
71 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
72 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
73 };
74 static bus_addr_t aicport_100[AIC_ISA_PORTSIZE] = {
75 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
76 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
77 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e,
78 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
79 };
80
81 static struct isa_pnp_id aic_ids[] = {
82 { 0xa180a3b8, "NEC PC9801-100" },
83 { 0 }
84 };
85
86 static int
87 aic_isa_alloc_resources(device_t dev)
88 {
89 struct aic_isa_softc *sc = device_get_softc(dev);
90 int rid;
91 bus_addr_t *bs_iat;
92
93 if ((isa_get_logicalid(dev) == 0xa180a3b8) ||
94 (AIC_TYPE98(device_get_flags(dev)) == AIC98_NEC100))
95 bs_iat = aicport_100;
96 else
97 bs_iat = aicport_generic;
98
99 sc->sc_port = sc->sc_irq = sc->sc_drq = NULL;
100
101 rid = 0;
102 sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
103 bs_iat, AIC_ISA_PORTSIZE, RF_ACTIVE);
104 if (!sc->sc_port) {
105 device_printf(dev, "I/O port allocation failed\n");
106 return (ENOMEM);
107 }
108 isa_load_resourcev(sc->sc_port, bs_iat, AIC_ISA_PORTSIZE);
109 mtx_init(&sc->sc_aic.lock, "aic", NULL, MTX_DEF);
110
111 if (isa_get_irq(dev) != -1) {
112 rid = 0;
113 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
114 RF_ACTIVE);
115 if (!sc->sc_irq) {
116 device_printf(dev, "IRQ allocation failed\n");
117 aic_isa_release_resources(dev);
118 return (ENOMEM);
119 }
120 }
121
122 if (isa_get_drq(dev) != -1) {
123 rid = 0;
124 sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
125 RF_ACTIVE);
126 if (!sc->sc_drq) {
127 device_printf(dev, "DRQ allocation failed\n");
128 aic_isa_release_resources(dev);
129 return (ENOMEM);
130 }
131 }
132
133 sc->sc_aic.dev = dev;
134 sc->sc_aic.res = sc->sc_port;
135 return (0);
136 }
137
138 static void
139 aic_isa_release_resources(device_t dev)
140 {
141 struct aic_isa_softc *sc = device_get_softc(dev);
142
143 if (sc->sc_port)
144 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
145 if (sc->sc_irq)
146 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
147 if (sc->sc_drq)
148 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
149 sc->sc_port = sc->sc_irq = sc->sc_drq = NULL;
150 mtx_destroy(&sc->sc_aic.lock);
151 }
152
153 static int
154 aic_isa_probe(device_t dev)
155 {
156 struct aic_isa_softc *sc = device_get_softc(dev);
157 struct aic_softc *aic = &sc->sc_aic;
158 int numports, i;
159 u_int port, *ports;
160 u_int8_t porta;
161
162 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
163 return (ENXIO);
164
165 port = isa_get_port(dev);
166 if (port != -1) {
167 ports = &port;
168 numports = 1;
169 } else {
170 ports = aic_isa_ports;
171 numports = AIC_ISA_NUMPORTS;
172 }
173
174 for (i = 0; i < numports; i++) {
175 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1))
176 continue;
177 if (aic_isa_alloc_resources(dev))
178 continue;
179 if (aic_probe(aic) == 0)
180 break;
181 aic_isa_release_resources(dev);
182 }
183
184 if (i == numports)
185 return (ENXIO);
186
187 porta = aic_inb(aic, PORTA);
188 aic_isa_release_resources(dev);
189 if (isa_get_irq(dev) == -1)
190 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
191 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
192 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
193 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
194 return (0);
195 }
196
197 static int
198 aic_isa_attach(device_t dev)
199 {
200 struct aic_isa_softc *sc = device_get_softc(dev);
201 struct aic_softc *aic = &sc->sc_aic;
202 int error;
203
204 error = aic_isa_alloc_resources(dev);
205 if (error) {
206 device_printf(dev, "resource allocation failed\n");
207 return (error);
208 }
209
210 error = aic_attach(aic);
211 if (error) {
212 device_printf(dev, "attach failed\n");
213 aic_isa_release_resources(dev);
214 return (error);
215 }
216
217 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM | INTR_ENTROPY |
218 INTR_MPSAFE, NULL, aic_intr, aic, &sc->sc_ih);
219 if (error) {
220 device_printf(dev, "failed to register interrupt handler\n");
221 aic_isa_release_resources(dev);
222 return (error);
223 }
224 return (0);
225 }
226
227 static int
228 aic_isa_detach(device_t dev)
229 {
230 struct aic_isa_softc *sc = device_get_softc(dev);
231 struct aic_softc *aic = &sc->sc_aic;
232 int error;
233
234 error = aic_detach(aic);
235 if (error) {
236 device_printf(dev, "detach failed\n");
237 return (error);
238 }
239
240 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
241 if (error) {
242 device_printf(dev, "failed to unregister interrupt handler\n");
243 }
244
245 aic_isa_release_resources(dev);
246 return (0);
247 }
248
249 static device_method_t aic_isa_methods[] = {
250 /* Device interface */
251 DEVMETHOD(device_probe, aic_isa_probe),
252 DEVMETHOD(device_attach, aic_isa_attach),
253 DEVMETHOD(device_detach, aic_isa_detach),
254 { 0, 0 }
255 };
256
257 static driver_t aic_isa_driver = {
258 "aic",
259 aic_isa_methods, sizeof(struct aic_isa_softc),
260 };
261
262 extern devclass_t aic_devclass;
263
264 MODULE_DEPEND(aic, cam, 1,1,1);
265 DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);
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