xref: /freebsd/sys/dev/acpica/acpi_container.c (revision 0957b409)
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     int rv;
102 
103     if (acpi_disabled("syscontainer"))
104 	return (ENXIO);
105     rv = ACPI_ID_PROBE(device_get_parent(dev), dev, syscont_ids, NULL);
106     if (rv <= 0)
107 	device_set_desc(dev, "System Container");
108     return (rv);
109 }
110 
111 static int
112 acpi_syscont_attach(device_t dev)
113 {
114 
115     bus_generic_probe(dev);
116     return (bus_generic_attach(dev));
117 }
118 
119 static int
120 acpi_syscont_detach(device_t dev)
121 {
122 
123     return (bus_generic_detach(dev));
124 }
125 
126 static int
127 acpi_syscont_alloc_msi(device_t bus, device_t dev, int count, int maxcount,
128     int *irqs)
129 {
130     device_t parent = device_get_parent(bus);
131 
132     return (PCIB_ALLOC_MSI(device_get_parent(parent), dev, count, maxcount,
133 	irqs));
134 }
135 
136 static int
137 acpi_syscont_release_msi(device_t bus, device_t dev, int count, int *irqs)
138 {
139     device_t parent = device_get_parent(bus);
140 
141     return (PCIB_RELEASE_MSI(device_get_parent(parent), dev, count, irqs));
142 }
143 
144 static int
145 acpi_syscont_alloc_msix(device_t bus, device_t dev, int *irq)
146 {
147     device_t parent = device_get_parent(bus);
148 
149     return (PCIB_ALLOC_MSIX(device_get_parent(parent), dev, irq));
150 }
151 
152 static int
153 acpi_syscont_release_msix(device_t bus, device_t dev, int irq)
154 {
155     device_t parent = device_get_parent(bus);
156 
157     return (PCIB_RELEASE_MSIX(device_get_parent(parent), dev, irq));
158 }
159 
160 static int
161 acpi_syscont_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr,
162     uint32_t *data)
163 {
164     device_t parent = device_get_parent(bus);
165 
166     return (PCIB_MAP_MSI(device_get_parent(parent), dev, irq, addr, data));
167 }
168