Pileus Git - ~andy/linux/blob - drivers/acpi/acpica/utbuffer.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utbuffer - Buffer dump routines
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2013, Intel Corp.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #include <acpi/acpi.h>
  45 #include "accommon.h"
  46
  47 #define _COMPONENT          ACPI_UTILITIES
  48 ACPI_MODULE_NAME("utbuffer")
  49
  50 /*******************************************************************************
  51  *
  52  * FUNCTION:    acpi_ut_dump_buffer
  53  *
  54  * PARAMETERS:  buffer              - Buffer to dump
  55  *              count               - Amount to dump, in bytes
  56  *              display             - BYTE, WORD, DWORD, or QWORD display:
  57  *                                      DB_BYTE_DISPLAY
  58  *                                      DB_WORD_DISPLAY
  59  *                                      DB_DWORD_DISPLAY
  60  *                                      DB_QWORD_DISPLAY
  61  *              base_offset         - Beginning buffer offset (display only)
  62  *
  63  * RETURN:      None
  64  *
  65  * DESCRIPTION: Generic dump buffer in both hex and ascii.
  66  *
  67  ******************************************************************************/
  68 void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset)
  69 {
  70         u32 i = 0;
  71         u32 j;
  72         u32 temp32;
  73         u8 buf_char;
  74
  75         if (!buffer) {
  76                 acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n");
  77                 return;
  78         }
  79
  80         if ((count < 4) || (count & 0x01)) {
  81                 display = DB_BYTE_DISPLAY;
  82         }
  83
  84         /* Nasty little dump buffer routine! */
  85
  86         while (i < count) {
  87
  88                 /* Print current offset */
  89
  90                 acpi_os_printf("%6.4X: ", (base_offset + i));
  91
  92                 /* Print 16 hex chars */
  93
  94                 for (j = 0; j < 16;) {
  95                         if (i + j >= count) {
  96
  97                                 /* Dump fill spaces */
  98
  99                                 acpi_os_printf("%*s", ((display * 2) + 1), " ");
 100                                 j += display;
 101                                 continue;
 102                         }
 103
 104                         switch (display) {
 105                         case DB_BYTE_DISPLAY:
 106                         default:        /* Default is BYTE display */
 107
 108                                 acpi_os_printf("%02X ",
 109                                                buffer[(acpi_size) i + j]);
 110                                 break;
 111
 112                         case DB_WORD_DISPLAY:
 113
 114                                 ACPI_MOVE_16_TO_32(&temp32,
 115                                                    &buffer[(acpi_size) i + j]);
 116                                 acpi_os_printf("%04X ", temp32);
 117                                 break;
 118
 119                         case DB_DWORD_DISPLAY:
 120
 121                                 ACPI_MOVE_32_TO_32(&temp32,
 122                                                    &buffer[(acpi_size) i + j]);
 123                                 acpi_os_printf("%08X ", temp32);
 124                                 break;
 125
 126                         case DB_QWORD_DISPLAY:
 127
 128                                 ACPI_MOVE_32_TO_32(&temp32,
 129                                                    &buffer[(acpi_size) i + j]);
 130                                 acpi_os_printf("%08X", temp32);
 131
 132                                 ACPI_MOVE_32_TO_32(&temp32,
 133                                                    &buffer[(acpi_size) i + j +
 134                                                            4]);
 135                                 acpi_os_printf("%08X ", temp32);
 136                                 break;
 137                         }
 138
 139                         j += display;
 140                 }
 141
 142                 /*
 143                  * Print the ASCII equivalent characters but watch out for the bad
 144                  * unprintable ones (printable chars are 0x20 through 0x7E)
 145                  */
 146                 acpi_os_printf(" ");
 147                 for (j = 0; j < 16; j++) {
 148                         if (i + j >= count) {
 149                                 acpi_os_printf("\n");
 150                                 return;
 151                         }
 152
 153                         buf_char = buffer[(acpi_size) i + j];
 154                         if (ACPI_IS_PRINT(buf_char)) {
 155                                 acpi_os_printf("%c", buf_char);
 156                         } else {
 157                                 acpi_os_printf(".");
 158                         }
 159                 }
 160
 161                 /* Done with that line. */
 162
 163                 acpi_os_printf("\n");
 164                 i += 16;
 165         }
 166
 167         return;
 168 }
 169
 170 /*******************************************************************************
 171  *
 172  * FUNCTION:    acpi_ut_debug_dump_buffer
 173  *
 174  * PARAMETERS:  buffer              - Buffer to dump
 175  *              count               - Amount to dump, in bytes
 176  *              display             - BYTE, WORD, DWORD, or QWORD display:
 177  *                                      DB_BYTE_DISPLAY
 178  *                                      DB_WORD_DISPLAY
 179  *                                      DB_DWORD_DISPLAY
 180  *                                      DB_QWORD_DISPLAY
 181  *              component_ID        - Caller's component ID
 182  *
 183  * RETURN:      None
 184  *
 185  * DESCRIPTION: Generic dump buffer in both hex and ascii.
 186  *
 187  ******************************************************************************/
 188
 189 void
 190 acpi_ut_debug_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id)
 191 {
 192
 193         /* Only dump the buffer if tracing is enabled */
 194
 195         if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
 196               (component_id & acpi_dbg_layer))) {
 197                 return;
 198         }
 199
 200         acpi_ut_dump_buffer(buffer, count, display, 0);
 201 }