FreeBSD/Linux Kernel Cross Reference
sys/dev/aha/aha_mca.c
1 /*-
2 * Copyright (c) 1999 Matthew N. Dodd <winter@jurai.net>
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 * Based on aha_isa.c
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD: releng/9.0/sys/dev/aha/aha_mca.c 183678 2008-10-07 23:55:32Z imp $");
31
32 #include <sys/types.h>
33 #include <sys/param.h>
34 #include <sys/kernel.h>
35 #include <sys/lock.h>
36 #include <sys/mutex.h>
37
38 #include <sys/module.h>
39 #include <sys/bus.h>
40 #include <machine/bus.h>
41 #include <machine/resource.h>
42 #include <sys/rman.h>
43
44 #include <isa/isavar.h>
45
46 #include <dev/mca/mca_busreg.h>
47 #include <dev/mca/mca_busvar.h>
48
49 #include <dev/aha/ahareg.h>
50
51 static struct mca_ident aha_mca_devs[] = {
52 { 0x0f1f, "Adaptec AHA-1640 SCSI Adapter" },
53 { 0, NULL },
54 };
55
56 #define AHA_MCA_IOPORT_POS MCA_ADP_POS(MCA_POS1)
57 # define AHA_MCA_IOPORT_MASK1 0x07
58 # define AHA_MCA_IOPORT_MASK2 0xc0
59 # define AHA_MCA_IOPORT_SIZE 0x03
60 # define AHA_MCA_IOPORT(pos) (0x30 + \
61 (((uint32_t)pos & \
62 AHA_MCA_IOPORT_MASK1) << 8) + \
63 (((uint32_t)pos & \
64 AHA_MCA_IOPORT_MASK2) >> 4))
65
66 #define AHA_MCA_DRQ_POS MCA_ADP_POS(MCA_POS3)
67 # define AHA_MCA_DRQ_MASK 0x0f
68 # define AHA_MCA_DRQ(pos) (pos & AHA_MCA_DRQ_MASK)
69
70 #define AHA_MCA_IRQ_POS MCA_ADP_POS(MCA_POS2)
71 # define AHA_MCA_IRQ_MASK 0x07
72 # define AHA_MCA_IRQ(pos) ((pos & AHA_MCA_IRQ_MASK) + 8)
73
74 /*
75 * Not needed as the board knows its config
76 * internally and the ID will be fetched
77 * via AOP_INQUIRE_SETUP_INFO command.
78 */
79 #define AHA_MCA_SCSIID_POS MCA_ADP_POS(MCA_POS2)
80 #define AHA_MCA_SCSIID_MASK 0xe0
81 #define AHA_MCA_SCSIID(pos) ((pos & AHA_MCA_SCSIID_MASK) >> 5)
82
83 static int
84 aha_mca_probe (device_t dev)
85 {
86 const char * desc;
87 mca_id_t id = mca_get_id(dev);
88 uint32_t iobase = 0;
89 uint32_t iosize = 0;
90 uint8_t drq = 0;
91 uint8_t irq = 0;
92 uint8_t pos;
93
94 desc = mca_match_id(id, aha_mca_devs);
95 if (!desc)
96 return (ENXIO);
97 device_set_desc(dev, desc);
98
99 pos = mca_pos_read(dev, AHA_MCA_IOPORT_POS);
100 iobase = AHA_MCA_IOPORT(pos);
101 iosize = AHA_MCA_IOPORT_SIZE;
102
103 pos = mca_pos_read(dev, AHA_MCA_DRQ_POS);
104 drq = AHA_MCA_DRQ(pos);
105
106 pos = mca_pos_read(dev, AHA_MCA_IRQ_POS);
107 irq = AHA_MCA_IRQ(pos);
108
109 mca_add_iospace(dev, iobase, iosize);
110 mca_add_drq(dev, drq);
111 mca_add_irq(dev, irq);
112
113 return (0);
114 }
115
116 static int
117 aha_mca_attach (device_t dev)
118 {
119 struct aha_softc * sc = device_get_softc(dev);
120 int error = ENOMEM;
121 int unit = device_get_unit(dev);
122 void * ih;
123
124 sc->portrid = 0;
125 sc->port = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &sc->portrid,
126 RF_ACTIVE);
127 if (sc->port == NULL) {
128 device_printf(dev, "No I/O space?!\n");
129 goto bad;
130 }
131
132 sc->irqrid = 0;
133 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqrid,
134 RF_ACTIVE);
135 if (sc->irq == NULL) {
136 device_printf(dev, "No IRQ?!\n");
137 goto bad;
138 }
139
140 sc->drqrid = 0;
141 sc->drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &sc->drqrid,
142 RF_ACTIVE);
143 if (sc->drq == NULL) {
144 device_printf(dev, "No DRQ?!\n");
145 goto bad;
146 }
147
148 aha_alloc(sc, unit, rman_get_bustag(sc->port),
149 rman_get_bushandle(sc->port));
150 error = aha_probe(sc);
151 if (error) {
152 device_printf(dev, "aha_probe() failed!\n");
153 goto bad;
154 }
155
156 error = aha_fetch_adapter_info(sc);
157 if (error) {
158 device_printf(dev, "aha_fetch_adapter_info() failed!\n");
159 goto bad;
160 }
161
162 isa_dmacascade(rman_get_start(sc->drq));
163
164 error = bus_dma_tag_create(
165 /* parent */ bus_get_dma_tag(dev),
166 /* alignemnt */ 1,
167 /* boundary */ 0,
168 /* lowaddr */ BUS_SPACE_MAXADDR_24BIT,
169 /* highaddr */ BUS_SPACE_MAXADDR,
170 /* filter */ NULL,
171 /* filterarg */ NULL,
172 /* maxsize */ BUS_SPACE_MAXSIZE_24BIT,
173 /* nsegments */ ~0,
174 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT,
175 /* flags */ 0,
176 /* lockfunc */ busdma_lock_mutex,
177 /* lockarg */ &Giant,
178 &sc->parent_dmat);
179 if (error) {
180 device_printf(dev, "bus_dma_tag_create() failed!\n");
181 goto bad;
182 }
183
184 error = aha_init(sc);
185 if (error) {
186 device_printf(dev, "aha_init() failed\n");
187 goto bad;
188 }
189
190 error = aha_attach(sc);
191 if (error) {
192 device_printf(dev, "aha_attach() failed\n");
193 goto bad;
194 }
195
196 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_CAM | INTR_ENTROPY,
197 NULL, aha_intr, sc, &ih);
198 if (error) {
199 device_printf(dev, "Unable to register interrupt handler\n");
200 goto bad;
201 }
202
203 return (0);
204
205 bad:
206 aha_free(sc);
207 bus_free_resource(dev, SYS_RES_IOPORT, sc->port);
208 bus_free_resource(dev, SYS_RES_IRQ, sc->irq);
209 bus_free_resource(dev, SYS_RES_DRQ, sc->drq);
210 return (error);
211 }
212
213 static device_method_t aha_mca_methods[] = {
214 DEVMETHOD(device_probe, aha_mca_probe),
215 DEVMETHOD(device_attach, aha_mca_attach),
216
217 { 0, 0 }
218 };
219
220 static driver_t aha_mca_driver = {
221 "aha",
222 aha_mca_methods,
223 1,
224 /*
225 sizeof(struct aha_softc *),
226 */
227 };
228
229 static devclass_t aha_devclass;
230
231 DRIVER_MODULE(aha, mca, aha_mca_driver, aha_devclass, 0, 0);
232 MODULE_DEPEND(aha, mca, 1, 1, 1);
Cache object: 1a436b048dbfaaa2c1c9fa3d4d880c89
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