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