kernel/drivers/acpi/acpica/utbuffer.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utbuffer - Buffer dump routines
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2015, 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                         /*
 154                          * Add comment characters so rest of line is ignored when
 155                          * compiled
 156                          */
 157                         if (j == 0) {
 158                                 acpi_os_printf("// ");
 159                         }
 160
 161                         buf_char = buffer[(acpi_size) i + j];
 162                         if (ACPI_IS_PRINT(buf_char)) {
 163                                 acpi_os_printf("%c", buf_char);
 164                         } else {
 165                                 acpi_os_printf(".");
 166                         }
 167                 }
 168
 169                 /* Done with that line. */
 170
 171                 acpi_os_printf("\n");
 172                 i += 16;
 173         }
 174
 175         return;
 176 }
 177
 178 /*******************************************************************************
 179  *
 180  * FUNCTION:    acpi_ut_debug_dump_buffer
 181  *
 182  * PARAMETERS:  buffer              - Buffer to dump
 183  *              count               - Amount to dump, in bytes
 184  *              display             - BYTE, WORD, DWORD, or QWORD display:
 185  *                                      DB_BYTE_DISPLAY
 186  *                                      DB_WORD_DISPLAY
 187  *                                      DB_DWORD_DISPLAY
 188  *                                      DB_QWORD_DISPLAY
 189  *              component_ID        - Caller's component ID
 190  *
 191  * RETURN:      None
 192  *
 193  * DESCRIPTION: Generic dump buffer in both hex and ascii.
 194  *
 195  ******************************************************************************/
 196
 197 void
 198 acpi_ut_debug_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id)
 199 {
 200
 201         /* Only dump the buffer if tracing is enabled */
 202
 203         if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
 204               (component_id & acpi_dbg_layer))) {
 205                 return;
 206         }
 207
 208         acpi_ut_dump_buffer(buffer, count, display, 0);
 209 }
 210
 211 #ifdef ACPI_APPLICATION
 212 /*******************************************************************************
 213  *
 214  * FUNCTION:    acpi_ut_dump_buffer_to_file
 215  *
 216  * PARAMETERS:  file                - File descriptor
 217  *              buffer              - Buffer to dump
 218  *              count               - Amount to dump, in bytes
 219  *              display             - BYTE, WORD, DWORD, or QWORD display:
 220  *                                      DB_BYTE_DISPLAY
 221  *                                      DB_WORD_DISPLAY
 222  *                                      DB_DWORD_DISPLAY
 223  *                                      DB_QWORD_DISPLAY
 224  *              base_offset         - Beginning buffer offset (display only)
 225  *
 226  * RETURN:      None
 227  *
 228  * DESCRIPTION: Generic dump buffer in both hex and ascii to a file.
 229  *
 230  ******************************************************************************/
 231
 232 void
 233 acpi_ut_dump_buffer_to_file(ACPI_FILE file,
 234                             u8 *buffer, u32 count, u32 display, u32 base_offset)
 235 {
 236         u32 i = 0;
 237         u32 j;
 238         u32 temp32;
 239         u8 buf_char;
 240
 241         if (!buffer) {
 242                 acpi_ut_file_printf(file,
 243                                     "Null Buffer Pointer in DumpBuffer!\n");
 244                 return;
 245         }
 246
 247         if ((count < 4) || (count & 0x01)) {
 248                 display = DB_BYTE_DISPLAY;
 249         }
 250
 251         /* Nasty little dump buffer routine! */
 252
 253         while (i < count) {
 254
 255                 /* Print current offset */
 256
 257                 acpi_ut_file_printf(file, "%6.4X: ", (base_offset + i));
 258
 259                 /* Print 16 hex chars */
 260
 261                 for (j = 0; j < 16;) {
 262                         if (i + j >= count) {
 263
 264                                 /* Dump fill spaces */
 265
 266                                 acpi_ut_file_printf(file, "%*s",
 267                                                     ((display * 2) + 1), " ");
 268                                 j += display;
 269                                 continue;
 270                         }
 271
 272                         switch (display) {
 273                         case DB_BYTE_DISPLAY:
 274                         default:        /* Default is BYTE display */
 275
 276                                 acpi_ut_file_printf(file, "%02X ",
 277                                                     buffer[(acpi_size) i + j]);
 278                                 break;
 279
 280                         case DB_WORD_DISPLAY:
 281
 282                                 ACPI_MOVE_16_TO_32(&temp32,
 283                                                    &buffer[(acpi_size) i + j]);
 284                                 acpi_ut_file_printf(file, "%04X ", temp32);
 285                                 break;
 286
 287                         case DB_DWORD_DISPLAY:
 288
 289                                 ACPI_MOVE_32_TO_32(&temp32,
 290                                                    &buffer[(acpi_size) i + j]);
 291                                 acpi_ut_file_printf(file, "%08X ", temp32);
 292                                 break;
 293
 294                         case DB_QWORD_DISPLAY:
 295
 296                                 ACPI_MOVE_32_TO_32(&temp32,
 297                                                    &buffer[(acpi_size) i + j]);
 298                                 acpi_ut_file_printf(file, "%08X", temp32);
 299
 300                                 ACPI_MOVE_32_TO_32(&temp32,
 301                                                    &buffer[(acpi_size) i + j +
 302                                                            4]);
 303                                 acpi_ut_file_printf(file, "%08X ", temp32);
 304                                 break;
 305                         }
 306
 307                         j += display;
 308                 }
 309
 310                 /*
 311                  * Print the ASCII equivalent characters but watch out for the bad
 312                  * unprintable ones (printable chars are 0x20 through 0x7E)
 313                  */
 314                 acpi_ut_file_printf(file, " ");
 315                 for (j = 0; j < 16; j++) {
 316                         if (i + j >= count) {
 317                                 acpi_ut_file_printf(file, "\n");
 318                                 return;
 319                         }
 320
 321                         buf_char = buffer[(acpi_size) i + j];
 322                         if (ACPI_IS_PRINT(buf_char)) {
 323                                 acpi_ut_file_printf(file, "%c", buf_char);
 324                         } else {
 325                                 acpi_ut_file_printf(file, ".");
 326                         }
 327                 }
 328
 329                 /* Done with that line. */
 330
 331                 acpi_ut_file_printf(file, "\n");
 332                 i += 16;
 333         }
 334
 335         return;
 336 }
 337 #endif