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:
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 * 6.8 : Debugging support
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD: releng/10.4/sys/dev/acpica/Osd/OsdDebug.c 306536 2016-09-30 22:40:58Z jkim $");
34
35 #include "opt_ddb.h"
36 #include <sys/param.h>
37 #include <sys/kdb.h>
38 #include <sys/kernel.h>
39 #include <sys/bus.h>
40 #include <machine/bus.h>
41 #include <ddb/ddb.h>
42 #include <ddb/db_output.h>
43
44 #include <contrib/dev/acpica/include/acpi.h>
45 #include <contrib/dev/acpica/include/accommon.h>
46 #include <contrib/dev/acpica/include/acdebug.h>
47
48 #include <dev/acpica/acpivar.h>
49
50 ACPI_STATUS
51 AcpiOsGetLine(char *Buffer, UINT32 BufferLength, UINT32 *BytesRead)
52 {
53 #ifdef DDB
54 char *cp;
55
56 cp = Buffer;
57 if (db_readline(Buffer, BufferLength) > 0)
58 while (*cp != '\0' && *cp != '\n' && *cp != '\r')
59 cp++;
60 *cp = '\0';
61 if (BytesRead != NULL)
62 *BytesRead = cp - Buffer;
63 return (AE_OK);
64 #else
65 printf("AcpiOsGetLine called but no input support");
66 return (AE_NOT_EXIST);
67 #endif /* DDB */
68 }
69
70 ACPI_STATUS
71 AcpiOsSignal(UINT32 Function, void *Info)
72 {
73 ACPI_SIGNAL_FATAL_INFO *fatal;
74
75 switch (Function) {
76 case ACPI_SIGNAL_FATAL:
77 fatal = (ACPI_SIGNAL_FATAL_INFO *)Info;
78 printf("ACPI fatal signal, type 0x%x code 0x%x argument 0x%x",
79 fatal->Type, fatal->Code, fatal->Argument);
80 #ifdef ACPI_DEBUG
81 kdb_enter(KDB_WHY_ACPI, "AcpiOsSignal");
82 #endif
83 break;
84
85 case ACPI_SIGNAL_BREAKPOINT:
86 #ifdef ACPI_DEBUG
87 kdb_enter(KDB_WHY_ACPI, (char *)Info);
88 #endif
89 break;
90
91 default:
92 return (AE_BAD_PARAMETER);
93 }
94
95 return (AE_OK);
96 }
97
98 #ifdef ACPI_DEBUGGER
99 void
100 acpi_EnterDebugger(void)
101 {
102 ACPI_PARSE_OBJECT obj;
103 static int initted = 0;
104
105 if (!initted) {
106 printf("Initialising ACPICA debugger...\n");
107 AcpiInitializeDebugger();
108 initted = 1;
109 }
110
111 printf("Entering ACPICA debugger...\n");
112 AcpiDbUserCommands('A', &obj);
113 }
114 #endif /* ACPI_DEBUGGER */
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