FreeBSD/Linux Kernel Cross Reference
sys/dev/acpica/Osd/OsdDebug.c

     /*-
      * Copyright (c) 2000 Michael Smith
      * Copyright (c) 2000 BSDi
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD: src/sys/dev/acpica/Osd/OsdDebug.c,v 1.9 2004/09/02 04:28:05 njl Exp $
     */
    
    /*
     * 6.8 : Debugging support
     */
    
    #include "opt_ddb.h"
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/bus.h>
    #include <ddb/ddb.h>
    #include <ddb/db_output.h>
    
    #include "acpi.h"
    #include "accommon.h"
    #include "acpivar.h"
    #include "acdebug.h"
    
    ACPI_STATUS
    AcpiOsGetLine(char *Buffer, UINT32 BufferLength, UINT32 *BytesRead)
    {
    #ifdef DDB
        char *cp;
    
        cp = Buffer;
        if (db_readline(Buffer, BufferLength) > 0)
            while (*cp != '\0' && *cp != '\n' && *cp != '\r')
                cp++;
        *cp = '\0';
        if (BytesRead != NULL)
            *BytesRead = cp - Buffer;
        return (AE_OK);
    #else
        kprintf("AcpiOsGetLine called but no input support");
        return (AE_NOT_EXIST);
    #endif /* DDB */
    }
    
    #if 0   /* unused for ages */
    void
    AcpiOsDbgAssert(void *FailedAssertion, void *FileName, UINT32 LineNumber,
        char *Message)
    {
        kprintf("ACPI: %s:%d - %s\n", (char *)FileName, LineNumber, Message);
        kprintf("ACPI: assertion  %s\n", (char *)FailedAssertion);
    }
    #endif
    
    ACPI_STATUS
    AcpiOsSignal(UINT32 Function, void *Info)
    {
        ACPI_SIGNAL_FATAL_INFO      *fatal;
        
        switch (Function) {
        case ACPI_SIGNAL_FATAL:
            fatal = (ACPI_SIGNAL_FATAL_INFO *)Info;
            kprintf("ACPI fatal signal, type 0x%x  code 0x%x  argument 0x%x",
                  fatal->Type, fatal->Code, fatal->Argument);
            Debugger("AcpiOsSignal");
            break;
            
        case ACPI_SIGNAL_BREAKPOINT:
    #ifdef ACPI_DEBUG
            Debugger((char *)Info);
    #endif
            break;
    
        default:
            return (AE_BAD_PARAMETER);
        }
        return (AE_OK);
   }
   
   #ifdef ACPI_DEBUGGER
   void
   acpi_EnterDebugger(void)
   {
       ACPI_PARSE_OBJECT   obj;
       static int          initted = 0;
   
       if (!initted) {
           kprintf("Initialising ACPICA debugger...\n");
           AcpiDbInitialize();
           initted = 1;
       }
   
       kprintf("Entering ACPICA debugger...\n");
       AcpiDbUserCommands('A', &obj);
   }
   #endif /* ACPI_DEBUGGER */

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