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gerrit-public.fairphone.software / kernel / msm-4.9 / 3ed5cd79b82e9a055e0df3275eeb471ea0f1e2d7 / . / drivers / acpi / acpica / utbuffer.c
blob: 11fde93be120af0291b3e60d049f90fe0e3502d3 [file] [log] [blame]
Bob Moore88ec2862013-06-08 00:57:47 +0000[diff] [blame]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
48ACPI_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 ******************************************************************************/
68void 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
189void
190acpi_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}