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OsdInterrupt.c (127135) OsdInterrupt.c (128226)
1/*-
2 * Copyright (c) 2000 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:

--- 10 unchanged lines hidden (view full) ---

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 *
1/*-
2 * Copyright (c) 2000 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:

--- 10 unchanged lines hidden (view full) ---

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 * $FreeBSD: head/sys/dev/acpica/Osd/OsdInterrupt.c 127135 2004-03-17 17:50:55Z njl $
27 * $FreeBSD: head/sys/dev/acpica/Osd/OsdInterrupt.c 128226 2004-04-14 03:41:06Z njl $
28 */
29
30/*
31 * 6.5 : Interrupt handling
32 */
33
28 */
29
30/*
31 * 6.5 : Interrupt handling
32 */
33
34#include "acpi.h"
35
34#include <sys/param.h>
35#include <sys/kernel.h>
36#include <sys/bus.h>
36#include <sys/bus.h>
37#include <machine/resource.h>
38#include <machine/bus.h>
37#include <machine/bus.h>
38#include <machine/resource.h>
39#include <sys/rman.h>
40
39#include <sys/rman.h>
40
41#include "acpi.h"
41#include <dev/acpica/acpivar.h>
42
43#define _COMPONENT ACPI_OS_SERVICES
44ACPI_MODULE_NAME("INTERRUPT")
45
46static void InterruptWrapper(void *arg);
42#include <dev/acpica/acpivar.h>
43
44#define _COMPONENT ACPI_OS_SERVICES
45ACPI_MODULE_NAME("INTERRUPT")
46
47static void InterruptWrapper(void *arg);
48
47static OSD_HANDLER InterruptHandler;
49static OSD_HANDLER InterruptHandler;
50static UINT32 InterruptOverride = 0;
48
51
49static UINT32 InterruptOverride = 0;
50
51/*
52 * XXX this does not correctly free resources in the case of partically successful
53 * attachment.
54 */
55ACPI_STATUS
52ACPI_STATUS
56AcpiOsInstallInterruptHandler(UINT32 InterruptNumber, OSD_HANDLER ServiceRoutine, void *Context)
53AcpiOsInstallInterruptHandler(UINT32 InterruptNumber,
54 OSD_HANDLER ServiceRoutine, void *Context)
57{
58 struct acpi_softc *sc;
59
60 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
61
62 if ((sc = devclass_get_softc(devclass_find("acpi"), 0)) == NULL)
63 panic("can't find ACPI device to register interrupt");
64 if (sc->acpi_dev == NULL)
65 panic("acpi softc has invalid device");
66
55{
56 struct acpi_softc *sc;
57
58 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
59
60 if ((sc = devclass_get_softc(devclass_find("acpi"), 0)) == NULL)
61 panic("can't find ACPI device to register interrupt");
62 if (sc->acpi_dev == NULL)
63 panic("acpi softc has invalid device");
64
67 if ((InterruptNumber < 0) || (InterruptNumber > 255))
68 return_ACPI_STATUS(AE_BAD_PARAMETER);
65 if (InterruptNumber < 0 || InterruptNumber > 255)
66 return_ACPI_STATUS (AE_BAD_PARAMETER);
69 if (ServiceRoutine == NULL)
67 if (ServiceRoutine == NULL)
70 return_ACPI_STATUS(AE_BAD_PARAMETER);
71 if (InterruptHandler != NULL && InterruptHandler != ServiceRoutine) {
72 device_printf(sc->acpi_dev, "can't register more than one ACPI interrupt\n");
73 return_ACPI_STATUS(AE_BAD_PARAMETER);
68 return_ACPI_STATUS (AE_BAD_PARAMETER);
69 if (InterruptHandler != NULL) {
70 device_printf(sc->acpi_dev, "interrupt handler already installed\n");
71 return_ACPI_STATUS (AE_ALREADY_EXISTS);
74 }
75 InterruptHandler = ServiceRoutine;
76
77 /*
72 }
73 InterruptHandler = ServiceRoutine;
74
75 /*
78 * This isn't strictly true, as we ought to be able to handle > 1 interrupt. The ACPI
79 * spec doesn't call for this though.
76 * If the MADT contained an interrupt override directive for the SCI,
77 * we use that value instead of the one from the FADT.
80 */
78 */
81 if (sc->acpi_irq != NULL) {
82 device_printf(sc->acpi_dev, "attempt to register more than one interrupt handler\n");
83 return_ACPI_STATUS(AE_ALREADY_EXISTS);
84 }
85 sc->acpi_irq_rid = 0;
86 if (InterruptOverride != 0) {
87 device_printf(sc->acpi_dev,
88 "Overriding SCI Interrupt from IRQ %u to IRQ %u\n",
89 InterruptNumber, InterruptOverride);
90 InterruptNumber = InterruptOverride;
91 }
79 if (InterruptOverride != 0) {
80 device_printf(sc->acpi_dev,
81 "Overriding SCI Interrupt from IRQ %u to IRQ %u\n",
82 InterruptNumber, InterruptOverride);
83 InterruptNumber = InterruptOverride;
84 }
85
86 /* Set up the interrupt resource. */
87 sc->acpi_irq_rid = 0;
92 bus_set_resource(sc->acpi_dev, SYS_RES_IRQ, 0, InterruptNumber, 1);
88 bus_set_resource(sc->acpi_dev, SYS_RES_IRQ, 0, InterruptNumber, 1);
93 if ((sc->acpi_irq = bus_alloc_resource_any(sc->acpi_dev, SYS_RES_IRQ,
94 &sc->acpi_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
95 device_printf(sc->acpi_dev, "could not allocate SCI interrupt\n");
96 return_ACPI_STATUS(AE_ALREADY_EXISTS);
89 sc->acpi_irq = bus_alloc_resource_any(sc->acpi_dev, SYS_RES_IRQ,
90 &sc->acpi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
91 if (sc->acpi_irq == NULL) {
92 device_printf(sc->acpi_dev, "could not allocate interrupt\n");
93 goto error;
97 }
94 }
98 if (bus_setup_intr(sc->acpi_dev, sc->acpi_irq, INTR_TYPE_MISC, (driver_intr_t *)InterruptWrapper,
99 Context, &sc->acpi_irq_handle)) {
100 device_printf(sc->acpi_dev, "could not set up SCI interrupt\n");
101 return_ACPI_STATUS(AE_ALREADY_EXISTS);
95 if (bus_setup_intr(sc->acpi_dev, sc->acpi_irq, INTR_TYPE_MISC,
96 InterruptWrapper, Context, &sc->acpi_irq_handle)) {
97 device_printf(sc->acpi_dev, "could not set up interrupt\n");
98 goto error;
102 }
99 }
103
104 return_ACPI_STATUS(AE_OK);
100
101 return_ACPI_STATUS (AE_OK);
102
103error:
104 if (sc->acpi_irq_handle)
105 bus_teardown_intr(sc->acpi_dev, sc->acpi_irq, sc->acpi_irq_handle);
106 sc->acpi_irq_handle = NULL;
107 if (sc->acpi_irq)
108 bus_release_resource(sc->acpi_dev, SYS_RES_IRQ, 0, sc->acpi_irq);
109 sc->acpi_irq = NULL;
110 bus_delete_resource(sc->acpi_dev, SYS_RES_IRQ, 0);
111 InterruptHandler = NULL;
112
113 return_ACPI_STATUS (AE_ALREADY_EXISTS);
105}
106
107ACPI_STATUS
114}
115
116ACPI_STATUS
108AcpiOsRemoveInterruptHandler (UINT32 InterruptNumber, OSD_HANDLER ServiceRoutine)
117AcpiOsRemoveInterruptHandler(UINT32 InterruptNumber, OSD_HANDLER ServiceRoutine)
109{
110 struct acpi_softc *sc;
111
112 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
113
118{
119 struct acpi_softc *sc;
120
121 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
122
114 if ((InterruptNumber < 0) || (InterruptNumber > 255))
115 return_ACPI_STATUS(AE_BAD_PARAMETER);
123 if (InterruptNumber < 0 || InterruptNumber > 255)
124 return_ACPI_STATUS (AE_BAD_PARAMETER);
116 if (ServiceRoutine == NULL)
125 if (ServiceRoutine == NULL)
117 return_ACPI_STATUS(AE_BAD_PARAMETER);
126 return_ACPI_STATUS (AE_BAD_PARAMETER);
118
119 if ((sc = devclass_get_softc(devclass_find("acpi"), 0)) == NULL)
120 panic("can't find ACPI device to deregister interrupt");
121
122 if (sc->acpi_irq == NULL)
127
128 if ((sc = devclass_get_softc(devclass_find("acpi"), 0)) == NULL)
129 panic("can't find ACPI device to deregister interrupt");
130
131 if (sc->acpi_irq == NULL)
123 return_ACPI_STATUS(AE_NOT_EXIST);
132 return_ACPI_STATUS (AE_NOT_EXIST);
124
125 bus_teardown_intr(sc->acpi_dev, sc->acpi_irq, sc->acpi_irq_handle);
126 bus_release_resource(sc->acpi_dev, SYS_RES_IRQ, 0, sc->acpi_irq);
127 bus_delete_resource(sc->acpi_dev, SYS_RES_IRQ, 0);
128
129 sc->acpi_irq = NULL;
133
134 bus_teardown_intr(sc->acpi_dev, sc->acpi_irq, sc->acpi_irq_handle);
135 bus_release_resource(sc->acpi_dev, SYS_RES_IRQ, 0, sc->acpi_irq);
136 bus_delete_resource(sc->acpi_dev, SYS_RES_IRQ, 0);
137
138 sc->acpi_irq = NULL;
139 InterruptHandler = NULL;
130
140
131 return_ACPI_STATUS(AE_OK);
141 return_ACPI_STATUS (AE_OK);
132}
133
134ACPI_STATUS
135acpi_OverrideInterruptLevel(UINT32 InterruptNumber)
136{
137
138 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
139
140 if (InterruptOverride != 0)
142}
143
144ACPI_STATUS
145acpi_OverrideInterruptLevel(UINT32 InterruptNumber)
146{
147
148 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
149
150 if (InterruptOverride != 0)
141 return_ACPI_STATUS(AE_ALREADY_EXISTS);
151 return_ACPI_STATUS (AE_ALREADY_EXISTS);
142 InterruptOverride = InterruptNumber;
152 InterruptOverride = InterruptNumber;
143 return_ACPI_STATUS(AE_OK);
153 return_ACPI_STATUS (AE_OK);
144}
145
154}
155
146/*
147 * Interrupt handler wrapper.
148 */
149static void
150InterruptWrapper(void *arg)
151{
152 ACPI_LOCK_DECL;
153
154 ACPI_LOCK;
155 InterruptHandler(arg);
156 ACPI_UNLOCK;
157}
156static void
157InterruptWrapper(void *arg)
158{
159 ACPI_LOCK_DECL;
160
161 ACPI_LOCK;
162 InterruptHandler(arg);
163 ACPI_UNLOCK;
164}