1/*-
2 * Copyright (c) 2003 Nate Lawson
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>
| 1/*-
2 * Copyright (c) 2003 Nate Lawson
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>
|
40#include <dev/acpica/acpivar.h>
41
42/*
43 * Package manipulation convenience functions
44 */
45
46int
47acpi_PkgInt(ACPI_OBJECT *res, int idx, ACPI_INTEGER *dst)
48{
49 ACPI_OBJECT *obj;
50
51 obj = &res->Package.Elements[idx];
52 if (obj == NULL || obj->Type != ACPI_TYPE_INTEGER)
53 return (EINVAL);
54 *dst = obj->Integer.Value;
55
56 return (0);
57}
58
59int
60acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst)
61{
62 ACPI_INTEGER tmp;
63 int error;
64
65 error = acpi_PkgInt(res, idx, &tmp);
66 if (error == 0)
67 *dst = (uint32_t)tmp;
68
69 return (error);
70}
71
72int
73acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size)
74{
75 ACPI_OBJECT *obj;
76 void *ptr;
77 size_t length;
78
79 obj = &res->Package.Elements[idx];
80 if (obj == NULL)
81 return (EINVAL);
82 bzero(dst, sizeof(dst));
83
84 switch (obj->Type) {
85 case ACPI_TYPE_STRING:
86 ptr = obj->String.Pointer;
87 length = obj->String.Length;
88 break;
89 case ACPI_TYPE_BUFFER:
90 ptr = obj->Buffer.Pointer;
91 length = obj->Buffer.Length;
92 break;
93 default:
94 return (EINVAL);
95 }
96
97 /* Make sure string will fit, including terminating NUL */
98 if (++length > size)
99 return (E2BIG);
100
101 strlcpy(dst, ptr, length);
102 return (0);
103}
104
105int
106acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type, int *rid,
107 struct resource **dst)
108{
109 ACPI_GENERIC_ADDRESS gas;
110 ACPI_OBJECT *obj;
111
112 obj = &res->Package.Elements[idx];
113 if (obj == NULL || obj->Type != ACPI_TYPE_BUFFER ||
114 obj->Buffer.Length < sizeof(ACPI_GENERIC_ADDRESS) + 3)
115 return (EINVAL);
116
117 memcpy(&gas, obj->Buffer.Pointer + 3, sizeof(gas));
118
119 return (acpi_bus_alloc_gas(dev, type, rid, &gas, dst));
120}
121
122ACPI_HANDLE
123acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj)
124{
125 ACPI_HANDLE h;
126
127 if (obj == NULL)
128 return (NULL);
129
130 switch (obj->Type) {
131 case ACPI_TYPE_LOCAL_REFERENCE:
132 case ACPI_TYPE_ANY:
133 h = obj->Reference.Handle;
134 break;
135 case ACPI_TYPE_STRING:
136 /*
137 * The String object usually contains a fully-qualified path, so
138 * scope can be NULL.
139 *
140 * XXX This may not always be the case.
141 */
142 if (ACPI_FAILURE(AcpiGetHandle(scope, obj->String.Pointer, &h)))
143 h = NULL;
144 break;
145 default:
146 h = NULL;
147 break;
148 }
149
150 return (h);
151}
| 40#include <dev/acpica/acpivar.h>
41
42/*
43 * Package manipulation convenience functions
44 */
45
46int
47acpi_PkgInt(ACPI_OBJECT *res, int idx, ACPI_INTEGER *dst)
48{
49 ACPI_OBJECT *obj;
50
51 obj = &res->Package.Elements[idx];
52 if (obj == NULL || obj->Type != ACPI_TYPE_INTEGER)
53 return (EINVAL);
54 *dst = obj->Integer.Value;
55
56 return (0);
57}
58
59int
60acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst)
61{
62 ACPI_INTEGER tmp;
63 int error;
64
65 error = acpi_PkgInt(res, idx, &tmp);
66 if (error == 0)
67 *dst = (uint32_t)tmp;
68
69 return (error);
70}
71
72int
73acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size)
74{
75 ACPI_OBJECT *obj;
76 void *ptr;
77 size_t length;
78
79 obj = &res->Package.Elements[idx];
80 if (obj == NULL)
81 return (EINVAL);
82 bzero(dst, sizeof(dst));
83
84 switch (obj->Type) {
85 case ACPI_TYPE_STRING:
86 ptr = obj->String.Pointer;
87 length = obj->String.Length;
88 break;
89 case ACPI_TYPE_BUFFER:
90 ptr = obj->Buffer.Pointer;
91 length = obj->Buffer.Length;
92 break;
93 default:
94 return (EINVAL);
95 }
96
97 /* Make sure string will fit, including terminating NUL */
98 if (++length > size)
99 return (E2BIG);
100
101 strlcpy(dst, ptr, length);
102 return (0);
103}
104
105int
106acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type, int *rid,
107 struct resource **dst)
108{
109 ACPI_GENERIC_ADDRESS gas;
110 ACPI_OBJECT *obj;
111
112 obj = &res->Package.Elements[idx];
113 if (obj == NULL || obj->Type != ACPI_TYPE_BUFFER ||
114 obj->Buffer.Length < sizeof(ACPI_GENERIC_ADDRESS) + 3)
115 return (EINVAL);
116
117 memcpy(&gas, obj->Buffer.Pointer + 3, sizeof(gas));
118
119 return (acpi_bus_alloc_gas(dev, type, rid, &gas, dst));
120}
121
122ACPI_HANDLE
123acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj)
124{
125 ACPI_HANDLE h;
126
127 if (obj == NULL)
128 return (NULL);
129
130 switch (obj->Type) {
131 case ACPI_TYPE_LOCAL_REFERENCE:
132 case ACPI_TYPE_ANY:
133 h = obj->Reference.Handle;
134 break;
135 case ACPI_TYPE_STRING:
136 /*
137 * The String object usually contains a fully-qualified path, so
138 * scope can be NULL.
139 *
140 * XXX This may not always be the case.
141 */
142 if (ACPI_FAILURE(AcpiGetHandle(scope, obj->String.Pointer, &h)))
143 h = NULL;
144 break;
145 default:
146 h = NULL;
147 break;
148 }
149
150 return (h);
151}
|