1 /*-
2 * Copyright (c) 2017 Microsoft Corp.
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 unmodified, this list of conditions, and the following
10 * 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 ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/kernel.h>
32 #include <sys/bus.h>
33 #include <sys/module.h>
34
35 #include <contrib/dev/acpica/include/acpi.h>
36 #include <dev/acpica/acpivar.h>
37
38 #include "pcib_if.h"
39
40 ACPI_MODULE_NAME("CONTAINER")
41
42 static int acpi_syscont_probe(device_t);
43 static int acpi_syscont_attach(device_t);
44 static int acpi_syscont_detach(device_t);
45 static int acpi_syscont_alloc_msi(device_t, device_t,
46 int count, int maxcount, int *irqs);
47 static int acpi_syscont_release_msi(device_t bus, device_t dev,
48 int count, int *irqs);
49 static int acpi_syscont_alloc_msix(device_t bus, device_t dev,
50 int *irq);
51 static int acpi_syscont_release_msix(device_t bus, device_t dev,
52 int irq);
53 static int acpi_syscont_map_msi(device_t bus, device_t dev,
54 int irq, uint64_t *addr, uint32_t *data);
55
56 static device_method_t acpi_syscont_methods[] = {
57 /* Device interface */
58 DEVMETHOD(device_probe, acpi_syscont_probe),
59 DEVMETHOD(device_attach, acpi_syscont_attach),
60 DEVMETHOD(device_detach, acpi_syscont_detach),
61
62 /* Bus interface */
63 DEVMETHOD(bus_add_child, bus_generic_add_child),
64 DEVMETHOD(bus_print_child, bus_generic_print_child),
65 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
66 DEVMETHOD(bus_release_resource, bus_generic_release_resource),
67 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
68 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
69 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
70 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
71 #if __FreeBSD_version >= 1100000
72 DEVMETHOD(bus_get_cpus, bus_generic_get_cpus),
73 #endif
74
75 /* pcib interface */
76 DEVMETHOD(pcib_alloc_msi, acpi_syscont_alloc_msi),
77 DEVMETHOD(pcib_release_msi, acpi_syscont_release_msi),
78 DEVMETHOD(pcib_alloc_msix, acpi_syscont_alloc_msix),
79 DEVMETHOD(pcib_release_msix, acpi_syscont_release_msix),
80 DEVMETHOD(pcib_map_msi, acpi_syscont_map_msi),
81
82 DEVMETHOD_END
83 };
84
85 static driver_t acpi_syscont_driver = {
86 "acpi_syscontainer",
87 acpi_syscont_methods,
88 0,
89 };
90
91 static devclass_t acpi_syscont_devclass;
92
93 DRIVER_MODULE(acpi_syscontainer, acpi, acpi_syscont_driver,
94 acpi_syscont_devclass, NULL, NULL);
95 MODULE_DEPEND(acpi_syscontainer, acpi, 1, 1, 1);
96
97 static int
98 acpi_syscont_probe(device_t dev)
99 {
100 static char *syscont_ids[] = { "ACPI0004", "PNP0A05", "PNP0A06", NULL };
101
102 if (acpi_disabled("syscontainer") ||
103 ACPI_ID_PROBE(device_get_parent(dev), dev, syscont_ids) == NULL)
104 return (ENXIO);
105
106 device_set_desc(dev, "System Container");
107 return (BUS_PROBE_DEFAULT);
108 }
109
110 static int
111 acpi_syscont_attach(device_t dev)
112 {
113
114 bus_generic_probe(dev);
115 return (bus_generic_attach(dev));
116 }
117
118 static int
119 acpi_syscont_detach(device_t dev)
120 {
121
122 return (bus_generic_detach(dev));
123 }
124
125 static int
126 acpi_syscont_alloc_msi(device_t bus, device_t dev, int count, int maxcount,
127 int *irqs)
128 {
129 device_t parent = device_get_parent(bus);
130
131 return (PCIB_ALLOC_MSI(device_get_parent(parent), dev, count, maxcount,
132 irqs));
133 }
134
135 static int
136 acpi_syscont_release_msi(device_t bus, device_t dev, int count, int *irqs)
137 {
138 device_t parent = device_get_parent(bus);
139
140 return (PCIB_RELEASE_MSI(device_get_parent(parent), dev, count, irqs));
141 }
142
143 static int
144 acpi_syscont_alloc_msix(device_t bus, device_t dev, int *irq)
145 {
146 device_t parent = device_get_parent(bus);
147
148 return (PCIB_ALLOC_MSIX(device_get_parent(parent), dev, irq));
149 }
150
151 static int
152 acpi_syscont_release_msix(device_t bus, device_t dev, int irq)
153 {
154 device_t parent = device_get_parent(bus);
155
156 return (PCIB_RELEASE_MSIX(device_get_parent(parent), dev, irq));
157 }
158
159 static int
160 acpi_syscont_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr,
161 uint32_t *data)
162 {
163 device_t parent = device_get_parent(bus);
164
165 return (PCIB_MAP_MSI(device_get_parent(parent), dev, irq, addr, data));
166 }
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