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("$FreeBSD$"); 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 */ 115