1 /*-
2 * FreeBSD, EISA product support functions
3 *
4 *
5 * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice immediately at the beginning of the file, without modification,
13 * this list of conditions, and the following disclaimer.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/ahc_eisa.c#13 $
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD: stable/9/sys/dev/aic7xxx/ahc_eisa.c 233024 2012-03-16 08:46:58Z scottl $");
34
35 #include <dev/aic7xxx/aic7xxx_osm.h>
36
37 #include <dev/eisa/eisaconf.h>
38
39 static int
aic7770_probe(device_t dev)40 aic7770_probe(device_t dev)
41 {
42 struct aic7770_identity *entry;
43 struct resource *regs;
44 uint32_t iobase;
45 bus_space_handle_t bsh;
46 bus_space_tag_t tag;
47 u_int irq;
48 u_int intdef;
49 u_int hcntrl;
50 int shared;
51 int rid;
52 int error;
53
54 entry = aic7770_find_device(eisa_get_id(dev));
55 if (entry == NULL)
56 return (ENXIO);
57 device_set_desc(dev, entry->name);
58
59 iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + AHC_EISA_SLOT_OFFSET;
60
61 eisa_add_iospace(dev, iobase, AHC_EISA_IOSIZE, RESVADDR_NONE);
62
63 rid = 0;
64 regs = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
65 if (regs == NULL) {
66 device_printf(dev, "Unable to map I/O space?!\n");
67 return ENOMEM;
68 }
69
70 tag = rman_get_bustag(regs);
71 bsh = rman_get_bushandle(regs);
72 error = 0;
73
74 /* Pause the card preseving the IRQ type */
75 hcntrl = bus_space_read_1(tag, bsh, HCNTRL) & IRQMS;
76 bus_space_write_1(tag, bsh, HCNTRL, hcntrl | PAUSE);
77 while ((bus_space_read_1(tag, bsh, HCNTRL) & PAUSE) == 0)
78 ;
79
80 /* Make sure we have a valid interrupt vector */
81 intdef = bus_space_read_1(tag, bsh, INTDEF);
82 shared = (intdef & EDGE_TRIG) ? EISA_TRIGGER_EDGE : EISA_TRIGGER_LEVEL;
83 irq = intdef & VECTOR;
84 switch (irq) {
85 case 9:
86 case 10:
87 case 11:
88 case 12:
89 case 14:
90 case 15:
91 break;
92 default:
93 printf("aic7770 at slot %d: illegal irq setting %d\n",
94 eisa_get_slot(dev), intdef);
95 error = ENXIO;
96 }
97
98 if (error == 0)
99 eisa_add_intr(dev, irq, shared);
100
101 bus_release_resource(dev, SYS_RES_IOPORT, rid, regs);
102 return (error);
103 }
104
105 static int
aic7770_attach(device_t dev)106 aic7770_attach(device_t dev)
107 {
108 struct aic7770_identity *entry;
109 struct ahc_softc *ahc;
110 char *name;
111 int error;
112
113 entry = aic7770_find_device(eisa_get_id(dev));
114 if (entry == NULL)
115 return (ENXIO);
116
117 /*
118 * Allocate a softc for this card and
119 * set it up for attachment by our
120 * common detect routine.
121 */
122 name = malloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_NOWAIT);
123 if (name == NULL)
124 return (ENOMEM);
125 strcpy(name, device_get_nameunit(dev));
126 ahc = ahc_alloc(dev, name);
127 if (ahc == NULL)
128 return (ENOMEM);
129
130 ahc_set_unit(ahc, device_get_unit(dev));
131
132 /* Allocate a dmatag for our SCB DMA maps */
133 error = aic_dma_tag_create(ahc, /*parent*/bus_get_dma_tag(dev),
134 /*alignment*/1, /*boundary*/0,
135 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
136 /*highaddr*/BUS_SPACE_MAXADDR,
137 /*filter*/NULL, /*filterarg*/NULL,
138 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
139 /*nsegments*/AHC_NSEG,
140 /*maxsegsz*/AHC_MAXTRANSFER_SIZE,
141 /*flags*/0,
142 &ahc->parent_dmat);
143
144 if (error != 0) {
145 printf("ahc_eisa_attach: Could not allocate DMA tag "
146 "- error %d\n", error);
147 ahc_free(ahc);
148 return (ENOMEM);
149 }
150 ahc->dev_softc = dev;
151 error = aic7770_config(ahc, entry, /*unused ioport arg*/0);
152 if (error != 0) {
153 ahc_free(ahc);
154 return (error);
155 }
156
157 ahc_attach(ahc);
158 return (0);
159 }
160
161
162 static device_method_t ahc_eisa_device_methods[] = {
163 /* Device interface */
164 DEVMETHOD(device_probe, aic7770_probe),
165 DEVMETHOD(device_attach, aic7770_attach),
166 DEVMETHOD(device_detach, ahc_detach),
167 { 0, 0 }
168 };
169
170 static driver_t ahc_eisa_driver = {
171 "ahc",
172 ahc_eisa_device_methods,
173 sizeof(struct ahc_softc)
174 };
175
176 DRIVER_MODULE(ahc_eisa, eisa, ahc_eisa_driver, ahc_devclass, 0, 0);
177 MODULE_DEPEND(ahc_eisa, ahc, 1, 1, 1);
178 MODULE_VERSION(ahc_eisa, 1);
179