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 * $FreeBSD: head/sys/dev/acpica/Osd/OsdDebug.c 222544 2011-05-31 19:45:58Z jkim $
28 */
29
30 /*
31 * Debugging Support
32 */
33
34 #include "opt_ddb.h"
35
36 #include <sys/param.h>
37 #include <sys/kernel.h>
38 #include <sys/bus.h>
39 #include <ddb/ddb.h>
40 #include <ddb/db_output.h>
41
42 #include "acpi.h"
43 #include "accommon.h"
44 #include "acpivar.h"
45 #include "acdebug.h"
46
47 ACPI_MODULE_NAME("DEBUG")
48
49 ACPI_STATUS
AcpiOsGetLine(char * Buffer,UINT32 BufferLength,UINT32 * BytesRead)50 AcpiOsGetLine(char *Buffer, UINT32 BufferLength, UINT32 *BytesRead)
51 {
52 #ifdef DDB
53 char *cp;
54
55 cp = Buffer;
56 if (db_readline(Buffer, BufferLength) > 0)
57 while (*cp != '\0' && *cp != '\n' && *cp != '\r')
58 cp++;
59 *cp = '\0';
60 if (BytesRead != NULL)
61 *BytesRead = cp - Buffer;
62 return (AE_OK);
63 #else
64 kprintf("AcpiOsGetLine called but no input support");
65 return (AE_NOT_EXIST);
66 #endif /* DDB */
67 }
68
69 ACPI_STATUS
AcpiOsSignal(UINT32 Function,void * Info)70 AcpiOsSignal(UINT32 Function, void *Info)
71 {
72 ACPI_SIGNAL_FATAL_INFO *fatal;
73
74 switch (Function) {
75 case ACPI_SIGNAL_FATAL:
76 fatal = (ACPI_SIGNAL_FATAL_INFO *)Info;
77 kprintf("ACPI fatal signal, type 0x%x code 0x%x argument 0x%x",
78 fatal->Type, fatal->Code, fatal->Argument);
79 #ifdef ACPI_DEBUG
80 Debugger("AcpiOsSignal");
81 #endif
82 break;
83
84 case ACPI_SIGNAL_BREAKPOINT:
85 #ifdef ACPI_DEBUG
86 Debugger((char *)Info);
87 #endif
88 break;
89
90 default:
91 return (AE_BAD_PARAMETER);
92 }
93
94 return (AE_OK);
95 }
96
97 #ifdef ACPI_DEBUGGER
98 ACPI_STATUS
AcpiOsInitializeDebugger(void)99 AcpiOsInitializeDebugger(void)
100 {
101 return (AE_OK);
102 }
103
104 void
AcpiOsTerminateDebugger(void)105 AcpiOsTerminateDebugger(void)
106 {
107 }
108
109 ACPI_STATUS
AcpiOsWaitCommandReady(void)110 AcpiOsWaitCommandReady(void)
111 {
112 ACPI_STATUS Status;
113
114 /* Force output to console until a command is entered */
115
116 AcpiDbSetOutputDestination(ACPI_DB_CONSOLE_OUTPUT);
117
118 /* Different prompt if method is executing */
119
120 if (!AcpiGbl_MethodExecuting)
121 AcpiOsPrintf("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
122 else
123 AcpiOsPrintf("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
124
125 /* Get the user input line */
126
127 Status = AcpiOsGetLine(AcpiGbl_DbLineBuf,
128 ACPI_DB_LINE_BUFFER_SIZE, NULL);
129
130 if (ACPI_FAILURE (Status) && Status != AE_CTRL_TERMINATE)
131 ACPI_EXCEPTION ((AE_INFO, Status,
132 "While parsing/handling command line"));
133 return (Status);
134 }
135
136 ACPI_STATUS
AcpiOsNotifyCommandComplete(void)137 AcpiOsNotifyCommandComplete(void)
138 {
139 return (AE_OK);
140 }
141
DB_COMMAND(acpidb,db_cmd_acpidb)142 DB_COMMAND(acpidb, db_cmd_acpidb)
143 {
144 kprintf("Entering ACPICA debugger...\n");
145 while (!AcpiGbl_DbTerminateLoop) {
146 if (ACPI_FAILURE(AcpiOsWaitCommandReady()))
147 break;
148 AcpiDbCommandDispatch(AcpiGbl_DbLineBuf, NULL, NULL);
149 }
150 AcpiGbl_DbTerminateLoop = FALSE;
151 kprintf("Leaving ACPICA debugger...\n");
152 }
153 #endif /* ACPI_DEBUGGER */
154