1 /****************************************************************************** 2 * 3 * Module Name: utbuffer - Buffer dump routines 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2014, 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 } 202