1 /*-
2 * Copyright (c) 2006 IronPort Systems Inc. <ambrisko@ironport.com>
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/8.4/sys/dev/ipmi/ipmi_acpi.c 193530 2009-06-05 18:44:36Z jkim $");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/bus.h>
33 #include <sys/condvar.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <sys/rman.h>
37 #include <sys/selinfo.h>
38
39 #include <contrib/dev/acpica/include/acpi.h>
40
41 #include <dev/acpica/acpivar.h>
42
43 /* Hooks for the ACPI CA debugging infrastructure */
44 #define _COMPONENT ACPI_BUTTON
45 ACPI_MODULE_NAME("IPMI")
46
47 #ifdef LOCAL_MODULE
48 #include <ipmi.h>
49 #include <ipmivars.h>
50 #else
51 #include <sys/ipmi.h>
52 #include <dev/ipmi/ipmivars.h>
53 #endif
54
55 static int ipmi_acpi_probe(device_t);
56 static int ipmi_acpi_attach(device_t);
57
58 int
59 ipmi_acpi_probe(device_t dev)
60 {
61 static char *ipmi_ids[] = {"IPI0001", NULL};
62
63 if (ipmi_attached)
64 return (EBUSY);
65
66 if (acpi_disabled("ipmi") ||
67 ACPI_ID_PROBE(device_get_parent(dev), dev, ipmi_ids) == NULL)
68 return (ENXIO);
69
70 device_set_desc(dev, "IPMI System Interface");
71
72 return (0);
73 }
74
75 static int
76 ipmi_acpi_attach(device_t dev)
77 {
78 ACPI_HANDLE devh;
79 const char *mode;
80 struct ipmi_get_info info;
81 struct ipmi_softc *sc = device_get_softc(dev);
82 int count, error, flags, i, type;
83 int interface_type = 0, interface_version = 0;
84
85 error = 0;
86 devh = acpi_get_handle(dev);
87 if (ACPI_FAILURE(acpi_GetInteger(devh, "_IFT", &interface_type)))
88 return (ENXIO);
89
90 if (ACPI_FAILURE(acpi_GetInteger(devh, "_SRV", &interface_version)))
91 return (ENXIO);
92
93 switch (interface_type) {
94 case KCS_MODE:
95 count = 2;
96 mode = "KCS";
97 break;
98 case SMIC_MODE:
99 count = 3;
100 mode = "SMIC";
101 break;
102 case BT_MODE:
103 device_printf(dev, "BT interface not supported\n");
104 return (ENXIO);
105 case SSIF_MODE:
106 if (ACPI_FAILURE(acpi_GetInteger(devh, "_ADR", &flags)))
107 return (ENXIO);
108 info.address = flags;
109 device_printf(dev, "SSIF interface not supported on ACPI\n");
110 return (0);
111 default:
112 return (ENXIO);
113 }
114
115 if (bus_get_resource(dev, SYS_RES_IOPORT, 0, NULL, NULL) == 0)
116 type = SYS_RES_IOPORT;
117 else if (bus_get_resource(dev, SYS_RES_MEMORY, 0, NULL, NULL) == 0)
118 type = SYS_RES_MEMORY;
119 else {
120 device_printf(dev, "unknown resource type\n");
121 return (ENXIO);
122 }
123
124 sc->ipmi_io_rid = 0;
125 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
126 &sc->ipmi_io_rid, RF_ACTIVE);
127 sc->ipmi_io_type = type;
128 sc->ipmi_io_spacing = 1;
129 if (sc->ipmi_io_res[0] == NULL) {
130 device_printf(dev, "couldn't configure I/O resource\n");
131 return (ENXIO);
132 }
133
134 /* If we have multiple resources, allocate up to MAX_RES. */
135 for (i = 1; i < MAX_RES; i++) {
136 sc->ipmi_io_rid = i;
137 sc->ipmi_io_res[i] = bus_alloc_resource_any(dev, type,
138 &sc->ipmi_io_rid, RF_ACTIVE);
139 if (sc->ipmi_io_res[i] == NULL)
140 break;
141 }
142 sc->ipmi_io_rid = 0;
143
144 /* If we have multiple resources, make sure we have enough of them. */
145 if (sc->ipmi_io_res[1] != NULL && sc->ipmi_io_res[count - 1] == NULL) {
146 device_printf(dev, "too few I/O resources\n");
147 error = ENXIO;
148 goto bad;
149 }
150
151 device_printf(dev, "%s mode found at %s 0x%jx on %s\n",
152 mode, type == SYS_RES_IOPORT ? "io" : "mem",
153 (uintmax_t)rman_get_start(sc->ipmi_io_res[0]),
154 device_get_name(device_get_parent(dev)));
155
156 sc->ipmi_dev = dev;
157
158 /*
159 * Setup an interrupt if we have an interrupt resource. We
160 * don't support GPE interrupts via _GPE yet.
161 */
162 sc->ipmi_irq_rid = 0;
163 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
164 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
165
166 /* Warn if _GPE exists. */
167 if (ACPI_SUCCESS(AcpiEvaluateObject(devh, "_GPE", NULL, NULL)))
168 device_printf(dev, "_GPE support not implemented\n");
169
170 /*
171 * We assume an alignment of 1 byte as currently the IPMI spec
172 * doesn't provide any way to determine the alignment via ACPI.
173 */
174 switch (interface_type) {
175 case KCS_MODE:
176 error = ipmi_kcs_attach(sc);
177 if (error)
178 goto bad;
179 break;
180 case SMIC_MODE:
181 error = ipmi_smic_attach(sc);
182 if (error)
183 goto bad;
184 break;
185 }
186 error = ipmi_attach(dev);
187 if (error)
188 goto bad;
189
190 return (0);
191 bad:
192 ipmi_release_resources(dev);
193 return (error);
194 }
195
196 static device_method_t ipmi_methods[] = {
197 /* Device interface */
198 DEVMETHOD(device_probe, ipmi_acpi_probe),
199 DEVMETHOD(device_attach, ipmi_acpi_attach),
200 DEVMETHOD(device_detach, ipmi_detach),
201 { 0, 0 }
202 };
203
204 static driver_t ipmi_acpi_driver = {
205 "ipmi",
206 ipmi_methods,
207 sizeof(struct ipmi_softc),
208 };
209
210 DRIVER_MODULE(ipmi_acpi, acpi, ipmi_acpi_driver, ipmi_devclass, 0, 0);
211 MODULE_DEPEND(ipmi_acpi, acpi, 1, 1, 1);
Cache object: 06988237039ef8798441e495fc411870
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