]> CyberLeo.Net >> Repos - FreeBSD/FreeBSD.git/blob - sys/dev/ahci/ahci_generic.c
MFV r323105 (partial): 8300 fix man page issues found by mandoc 1.14.1
[FreeBSD/FreeBSD.git] / sys / dev / ahci / ahci_generic.c
1 /*-
2  * Copyright (c) 2009-2012 Alexander Motin <mav@FreeBSD.org>
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  *    without modification, immediately at the beginning of the file.
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 "opt_acpi.h"
31 #include "opt_platform.h"
32
33 #include <sys/param.h>
34 #include <sys/module.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/bus.h>
38 #include <sys/conf.h>
39 #include <sys/endian.h>
40 #include <sys/malloc.h>
41 #include <sys/lock.h>
42 #include <sys/mutex.h>
43 #include <sys/rman.h>
44
45 #include <machine/bus.h>
46 #include <machine/resource.h>
47
48 #include <dev/ahci/ahci.h>
49
50 #ifdef DEV_ACPI
51 #include <contrib/dev/acpica/include/acpi.h>
52 #include <dev/acpica/acpivar.h>
53
54 #include <dev/pci/pcivar.h>
55 #include <dev/pci/pcireg.h>
56 #endif
57
58 #ifdef FDT
59 #include <dev/ofw/ofw_bus.h>
60 #include <dev/ofw/ofw_bus_subr.h>
61
62 static struct ofw_compat_data compat_data[] = {
63         {"generic-ahci",                1},
64         {"snps,dwc-ahci",               1},
65         {"marvell,armada-3700-ahci",    1},
66         {NULL,                          0}
67 };
68
69 static int
70 ahci_fdt_probe(device_t dev)
71 {
72         struct ahci_controller *ctlr = device_get_softc(dev);
73         phandle_t node;
74
75         if (!ofw_bus_status_okay(dev))
76                 return (ENXIO);
77
78         if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
79                 return (ENXIO);
80
81         device_set_desc_copy(dev, "AHCI SATA controller");
82         node = ofw_bus_get_node(dev);
83         ctlr->dma_coherent = OF_hasprop(node, "dma-coherent");
84         return (BUS_PROBE_DEFAULT);
85 }
86 #endif
87
88 #ifdef DEV_ACPI
89 static int
90 ahci_acpi_probe(device_t dev)
91 {
92         ACPI_HANDLE h;
93
94         if ((h = acpi_get_handle(dev)) == NULL)
95                 return (ENXIO);
96
97         if (pci_get_class(dev) == PCIC_STORAGE &&
98             pci_get_subclass(dev) == PCIS_STORAGE_SATA &&
99             pci_get_progif(dev) == PCIP_STORAGE_SATA_AHCI_1_0) {
100                 device_set_desc_copy(dev, "AHCI SATA controller");
101                 return (BUS_PROBE_DEFAULT);
102         }
103
104         return (ENXIO);
105 }
106 #endif
107
108 static int
109 ahci_gen_ctlr_reset(device_t dev)
110 {
111
112         return ahci_ctlr_reset(dev);
113 }
114
115 static int
116 ahci_gen_attach(device_t dev)
117 {
118         struct ahci_controller *ctlr = device_get_softc(dev);
119         int     error;
120
121         ctlr->r_rid = 0;
122         ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &ctlr->r_rid,
123             RF_ACTIVE);
124         if (ctlr->r_mem == NULL)
125                 return (ENXIO);
126
127         /* Setup controller defaults. */
128         ctlr->numirqs = 1;
129
130         /* Reset controller */
131         if ((error = ahci_gen_ctlr_reset(dev)) == 0)
132                 error = ahci_attach(dev);
133
134         if (error != 0) {
135                 if (ctlr->r_mem != NULL)
136                         bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid,
137                             ctlr->r_mem);
138         }
139         return error;
140 }
141
142 static int
143 ahci_gen_detach(device_t dev)
144 {
145
146         ahci_detach(dev);
147         return (0);
148 }
149
150 #ifdef FDT
151 static devclass_t ahci_gen_fdt_devclass;
152 static device_method_t ahci_fdt_methods[] = {
153         DEVMETHOD(device_probe,     ahci_fdt_probe),
154         DEVMETHOD(device_attach,    ahci_gen_attach),
155         DEVMETHOD(device_detach,    ahci_gen_detach),
156         DEVMETHOD(bus_print_child,  ahci_print_child),
157         DEVMETHOD(bus_alloc_resource,       ahci_alloc_resource),
158         DEVMETHOD(bus_release_resource,     ahci_release_resource),
159         DEVMETHOD(bus_setup_intr,   ahci_setup_intr),
160         DEVMETHOD(bus_teardown_intr,ahci_teardown_intr),
161         DEVMETHOD(bus_child_location_str, ahci_child_location_str),
162         DEVMETHOD(bus_get_dma_tag,  ahci_get_dma_tag),
163         DEVMETHOD_END
164 };
165 static driver_t ahci_fdt_driver = {
166         "ahci",
167         ahci_fdt_methods,
168         sizeof(struct ahci_controller)
169 };
170 DRIVER_MODULE(ahci_fdt, simplebus, ahci_fdt_driver, ahci_gen_fdt_devclass,
171     NULL, NULL);
172 #endif
173
174 #ifdef DEV_ACPI
175 static devclass_t ahci_gen_acpi_devclass;
176 static device_method_t ahci_acpi_methods[] = {
177         DEVMETHOD(device_probe,     ahci_acpi_probe),
178         DEVMETHOD(device_attach,    ahci_gen_attach),
179         DEVMETHOD(device_detach,    ahci_gen_detach),
180         DEVMETHOD(bus_print_child,  ahci_print_child),
181         DEVMETHOD(bus_alloc_resource,       ahci_alloc_resource),
182         DEVMETHOD(bus_release_resource,     ahci_release_resource),
183         DEVMETHOD(bus_setup_intr,   ahci_setup_intr),
184         DEVMETHOD(bus_teardown_intr,ahci_teardown_intr),
185         DEVMETHOD(bus_child_location_str, ahci_child_location_str),
186         DEVMETHOD(bus_get_dma_tag,  ahci_get_dma_tag),
187         DEVMETHOD_END
188 };
189 static driver_t ahci_acpi_driver = {
190         "ahci",
191         ahci_acpi_methods,
192         sizeof(struct ahci_controller)
193 };
194 DRIVER_MODULE(ahci_acpi, acpi, ahci_acpi_driver, ahci_gen_acpi_devclass,
195     NULL, NULL);
196 #endif