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[FreeBSD/releng/9.2.git] / 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("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/kernel.h>
32 #include <sys/module.h>
33 #include <sys/bus.h>
34
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 static u_int aic_isa_ports[] = { 0x1840 };
57 #define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
58 #define AIC_ISA_PORTSIZE 0x20
59
60 #define AIC98_GENERIC           0x00
61 #define AIC98_NEC100            0x01
62 #define AIC_TYPE98(x)           (((x) >> 16) & 0x01)
63
64 static bus_addr_t aicport_generic[AIC_ISA_PORTSIZE] = {
65         0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
66         0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
67         0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
68         0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
69 };
70 static bus_addr_t aicport_100[AIC_ISA_PORTSIZE] = {
71         0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
72         0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
73         0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e,
74         0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
75 };
76
77 static struct isa_pnp_id aic_ids[] = {
78         { 0xa180a3b8, "NEC PC9801-100" },
79         { 0 }
80 };
81
82 static int
83 aic_isa_alloc_resources(device_t dev)
84 {
85         struct aic_isa_softc *sc = device_get_softc(dev);
86         int rid;
87         bus_addr_t *bs_iat;
88
89         if ((isa_get_logicalid(dev) == 0xa180a3b8) ||
90             (AIC_TYPE98(device_get_flags(dev)) == AIC98_NEC100))
91                 bs_iat = aicport_100;
92         else
93                 bs_iat = aicport_generic;
94
95         sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
96
97         rid = 0;
98         sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
99                                           bs_iat, AIC_ISA_PORTSIZE, RF_ACTIVE);
100         if (!sc->sc_port) {
101                 device_printf(dev, "I/O port allocation failed\n");
102                 return (ENOMEM);
103         }
104         isa_load_resourcev(sc->sc_port, bs_iat, AIC_ISA_PORTSIZE);
105
106         if (isa_get_irq(dev) != -1) {
107                 rid = 0;
108                 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
109                                                     RF_ACTIVE);
110                 if (!sc->sc_irq) {
111                         device_printf(dev, "IRQ allocation failed\n");
112                         aic_isa_release_resources(dev);
113                         return (ENOMEM);
114                 }
115         }
116
117         if (isa_get_drq(dev) != -1) {
118                 rid = 0;
119                 sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
120                                                     RF_ACTIVE);
121                 if (!sc->sc_drq) {
122                         device_printf(dev, "DRQ allocation failed\n");
123                         aic_isa_release_resources(dev);
124                         return (ENOMEM);
125                 }
126         }
127
128         sc->sc_aic.dev = dev;
129         sc->sc_aic.unit = device_get_unit(dev);
130         sc->sc_aic.tag = rman_get_bustag(sc->sc_port);
131         sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port);
132         return (0);
133 }
134
135 static void
136 aic_isa_release_resources(device_t dev)
137 {
138         struct aic_isa_softc *sc = device_get_softc(dev);
139
140         if (sc->sc_port)
141                 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
142         if (sc->sc_irq)
143                 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
144         if (sc->sc_drq)
145                 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
146         sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
147 }
148
149 static int
150 aic_isa_probe(device_t dev)
151 {
152         struct aic_isa_softc *sc = device_get_softc(dev);
153         struct aic_softc *aic = &sc->sc_aic;
154         int numports, i;
155         u_int port, *ports;
156         u_int8_t porta;
157
158         if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
159                 return (ENXIO);
160
161         port = isa_get_port(dev);
162         if (port != -1) {
163                 ports = &port;
164                 numports = 1;
165         } else {
166                 ports = aic_isa_ports;
167                 numports = AIC_ISA_NUMPORTS;
168         }
169
170         for (i = 0; i < numports; i++) {
171                 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1))
172                         continue;
173                 if (aic_isa_alloc_resources(dev))
174                         continue;
175                 if (!aic_probe(aic)) {
176                         aic_isa_release_resources(dev);
177                         break;
178                 }
179                 aic_isa_release_resources(dev);
180         }
181
182         if (i == numports)
183                 return (ENXIO);
184
185         porta = aic_inb(aic, PORTA);
186         if (isa_get_irq(dev) == -1)
187                 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
188         if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
189                 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
190         device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
191         return (0);
192 }
193
194 static int
195 aic_isa_attach(device_t dev)
196 {
197         struct aic_isa_softc *sc = device_get_softc(dev);
198         struct aic_softc *aic = &sc->sc_aic;
199         int error;
200
201         error = aic_isa_alloc_resources(dev);
202         if (error) {
203                 device_printf(dev, "resource allocation failed\n");
204                 return (error);
205         }
206
207         error = aic_attach(aic);
208         if (error) {
209                 device_printf(dev, "attach failed\n");
210                 aic_isa_release_resources(dev);
211                 return (error);
212         }
213
214         error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY,
215                                 NULL, aic_intr, aic, &sc->sc_ih);
216         if (error) {
217                 device_printf(dev, "failed to register interrupt handler\n");
218                 aic_isa_release_resources(dev);
219                 return (error);
220         }
221         return (0);
222 }
223
224 static int
225 aic_isa_detach(device_t dev)
226 {
227         struct aic_isa_softc *sc = device_get_softc(dev);
228         struct aic_softc *aic = &sc->sc_aic;
229         int error;
230
231         error = aic_detach(aic);
232         if (error) {
233                 device_printf(dev, "detach failed\n");
234                 return (error);
235         }
236
237         error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
238         if (error) {
239                 device_printf(dev, "failed to unregister interrupt handler\n");
240         }
241
242         aic_isa_release_resources(dev);
243         return (0);
244 }
245
246 static device_method_t aic_isa_methods[] = {
247         /* Device interface */
248         DEVMETHOD(device_probe,         aic_isa_probe),
249         DEVMETHOD(device_attach,        aic_isa_attach),
250         DEVMETHOD(device_detach,        aic_isa_detach),
251         { 0, 0 }
252 };
253
254 static driver_t aic_isa_driver = {
255         "aic",
256         aic_isa_methods, sizeof(struct aic_isa_softc),
257 };
258
259 extern devclass_t aic_devclass;
260
261 MODULE_DEPEND(aic, cam, 1,1,1);
262 DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);