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 #include <contrib/dev/acpica/include/acpi.h>
34
35 #include <machine/iodev.h>
36 #include <machine/pci_cfgreg.h>
37
38 extern int acpi_susp_bounce;
39
40 ACPI_STATUS
AcpiOsEnterSleep(UINT8 SleepState,UINT32 RegaValue,UINT32 RegbValue)41 AcpiOsEnterSleep(UINT8 SleepState, UINT32 RegaValue, UINT32 RegbValue)
42 {
43
44 /* If testing device suspend only, back out of everything here. */
45 if (acpi_susp_bounce)
46 return (AE_CTRL_TERMINATE);
47
48 return (AE_OK);
49 }
50
51 /*
52 * ACPICA's rather gung-ho approach to hardware resource ownership is a little
53 * troublesome insofar as there is no easy way for us to know in advance
54 * exactly which I/O resources it's going to want to use.
55 *
56 * In order to deal with this, we ignore resource ownership entirely, and simply
57 * use the native I/O space accessor functionality. This is Evil, but it works.
58 */
59
60 ACPI_STATUS
AcpiOsReadPort(ACPI_IO_ADDRESS InPort,UINT32 * Value,UINT32 Width)61 AcpiOsReadPort(ACPI_IO_ADDRESS InPort, UINT32 *Value, UINT32 Width)
62 {
63
64 switch (Width) {
65 case 8:
66 *Value = iodev_read_1(InPort);
67 break;
68 case 16:
69 *Value = iodev_read_2(InPort);
70 break;
71 case 32:
72 *Value = iodev_read_4(InPort);
73 break;
74 }
75
76 return (AE_OK);
77 }
78
79 ACPI_STATUS
AcpiOsWritePort(ACPI_IO_ADDRESS OutPort,UINT32 Value,UINT32 Width)80 AcpiOsWritePort(ACPI_IO_ADDRESS OutPort, UINT32 Value, UINT32 Width)
81 {
82
83 switch (Width) {
84 case 8:
85 iodev_write_1(OutPort, Value);
86 break;
87 case 16:
88 iodev_write_2(OutPort, Value);
89 break;
90 case 32:
91 iodev_write_4(OutPort, Value);
92 break;
93 }
94
95 return (AE_OK);
96 }
97
98 ACPI_STATUS
AcpiOsReadPciConfiguration(ACPI_PCI_ID * PciId,UINT32 Register,UINT64 * Value,UINT32 Width)99 AcpiOsReadPciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, UINT64 *Value,
100 UINT32 Width)
101 {
102
103 #ifdef __aarch64__
104 /* ARM64TODO: Add pci support */
105 return (AE_SUPPORT);
106 #else
107 if (Width == 64)
108 return (AE_SUPPORT);
109
110 if (!pci_cfgregopen())
111 return (AE_NOT_EXIST);
112
113 *(UINT64 *)Value = pci_cfgregread(PciId->Segment, PciId->Bus, PciId->Device,
114 PciId->Function, Register, Width / 8);
115
116 return (AE_OK);
117 #endif
118 }
119
120 ACPI_STATUS
AcpiOsWritePciConfiguration(ACPI_PCI_ID * PciId,UINT32 Register,UINT64 Value,UINT32 Width)121 AcpiOsWritePciConfiguration (ACPI_PCI_ID *PciId, UINT32 Register,
122 UINT64 Value, UINT32 Width)
123 {
124
125 #ifdef __aarch64__
126 /* ARM64TODO: Add pci support */
127 return (AE_SUPPORT);
128 #else
129 if (Width == 64)
130 return (AE_SUPPORT);
131
132 if (!pci_cfgregopen())
133 return (AE_NOT_EXIST);
134
135 pci_cfgregwrite(PciId->Segment, PciId->Bus, PciId->Device, PciId->Function,
136 Register, Value, Width / 8);
137
138 return (AE_OK);
139 #endif
140 }
141