1 /*-
2 * Copyright (c) 2000, 2001 Michael Smith
3 * Copyright (c) 2000 BSDi
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 /*
29 * 6.7 : Hardware Abstraction
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34
35 #include <contrib/dev/acpica/include/acpi.h>
36
37 #include <machine/iodev.h>
38 #include <machine/pci_cfgreg.h>
39
40 extern int acpi_susp_bounce;
41
42 ACPI_STATUS
43 AcpiOsEnterSleep(UINT8 SleepState, UINT32 RegaValue, UINT32 RegbValue)
44 {
45
46 /* If testing device suspend only, back out of everything here. */
47 if (acpi_susp_bounce)
48 return (AE_CTRL_TERMINATE);
49
50 return (AE_OK);
51 }
52
53 /*
54 * ACPICA's rather gung-ho approach to hardware resource ownership is a little
55 * troublesome insofar as there is no easy way for us to know in advance
56 * exactly which I/O resources it's going to want to use.
57 *
58 * In order to deal with this, we ignore resource ownership entirely, and simply
59 * use the native I/O space accessor functionality. This is Evil, but it works.
60 */
61
62 ACPI_STATUS
63 AcpiOsReadPort(ACPI_IO_ADDRESS InPort, UINT32 *Value, UINT32 Width)
64 {
65
66 switch (Width) {
67 case 8:
68 *Value = iodev_read_1(InPort);
69 break;
70 case 16:
71 *Value = iodev_read_2(InPort);
72 break;
73 case 32:
74 *Value = iodev_read_4(InPort);
75 break;
76 }
77
78 return (AE_OK);
79 }
80
81 ACPI_STATUS
82 AcpiOsWritePort(ACPI_IO_ADDRESS OutPort, UINT32 Value, UINT32 Width)
83 {
84
85 switch (Width) {
86 case 8:
87 iodev_write_1(OutPort, Value);
88 break;
89 case 16:
90 iodev_write_2(OutPort, Value);
91 break;
92 case 32:
93 iodev_write_4(OutPort, Value);
94 break;
95 }
96
97 return (AE_OK);
98 }
99
100 ACPI_STATUS
101 AcpiOsReadPciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, UINT64 *Value,
102 UINT32 Width)
103 {
104
105 #ifdef __aarch64__
106 /* ARM64TODO: Add pci support */
107 return (AE_SUPPORT);
108 #else
109 if (Width == 64)
110 return (AE_SUPPORT);
111
112 if (!pci_cfgregopen())
113 return (AE_NOT_EXIST);
114
115 *(UINT64 *)Value = pci_cfgregread(PciId->Bus, PciId->Device,
116 PciId->Function, Register, Width / 8);
117
118 return (AE_OK);
119 #endif
120 }
121
122
123 ACPI_STATUS
124 AcpiOsWritePciConfiguration (ACPI_PCI_ID *PciId, UINT32 Register,
125 UINT64 Value, UINT32 Width)
126 {
127
128 #ifdef __aarch64__
129 /* ARM64TODO: Add pci support */
130 return (AE_SUPPORT);
131 #else
132 if (Width == 64)
133 return (AE_SUPPORT);
134
135 if (!pci_cfgregopen())
136 return (AE_NOT_EXIST);
137
138 pci_cfgregwrite(PciId->Bus, PciId->Device, PciId->Function, Register,
139 Value, Width / 8);
140
141 return (AE_OK);
142 #endif
143 }
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