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 * 6.8 : 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_STATUS 48 AcpiOsGetLine(char *Buffer, UINT32 BufferLength, UINT32 *BytesRead) 49 { 50 #ifdef DDB 51 char *cp; 52 53 cp = Buffer; 54 if (db_readline(Buffer, BufferLength) > 0) 55 while (*cp != '\0' && *cp != '\n' && *cp != '\r') 56 cp++; 57 *cp = '\0'; 58 if (BytesRead != NULL) 59 *BytesRead = cp - Buffer; 60 return (AE_OK); 61 #else 62 kprintf("AcpiOsGetLine called but no input support"); 63 return (AE_NOT_EXIST); 64 #endif /* DDB */ 65 } 66 67 ACPI_STATUS 68 AcpiOsSignal(UINT32 Function, void *Info) 69 { 70 ACPI_SIGNAL_FATAL_INFO *fatal; 71 72 switch (Function) { 73 case ACPI_SIGNAL_FATAL: 74 fatal = (ACPI_SIGNAL_FATAL_INFO *)Info; 75 kprintf("ACPI fatal signal, type 0x%x code 0x%x argument 0x%x", 76 fatal->Type, fatal->Code, fatal->Argument); 77 #ifdef ACPI_DEBUG 78 Debugger("AcpiOsSignal"); 79 #endif 80 break; 81 82 case ACPI_SIGNAL_BREAKPOINT: 83 #ifdef ACPI_DEBUG 84 Debugger((char *)Info); 85 #endif 86 break; 87 88 default: 89 return (AE_BAD_PARAMETER); 90 } 91 92 return (AE_OK); 93 } 94 95 #ifdef ACPI_DEBUGGER 96 DB_COMMAND(acpidb, db_cmd_acpidb) 97 { 98 kprintf("Entering ACPICA debugger...\n"); 99 while (!AcpiGbl_DbTerminateThreads) { 100 AcpiDbSetOutputDestination(ACPI_DB_CONSOLE_OUTPUT); 101 if (!AcpiGbl_MethodExecuting) 102 AcpiOsPrintf("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT); 103 else 104 AcpiOsPrintf("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT); 105 AcpiOsGetLine(AcpiGbl_DbLineBuf, ACPI_DB_LINE_BUFFER_SIZE, NULL); 106 AcpiDbCommandDispatch(AcpiGbl_DbLineBuf, NULL, NULL); 107 } 108 AcpiGbl_DbTerminateThreads = FALSE; 109 kprintf("Leaving ACPICA debugger...\n"); 110 } 111 #endif /* ACPI_DEBUGGER */ 112