1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2 /******************************************************************************
3 *
4 * Module Name: utbuffer - Buffer dump routines
5 *
6 * Copyright (C) 2000 - 2019, Intel Corp.
7 *
8 *****************************************************************************/
9
10 #include <acpi/acpi.h>
11 #include "accommon.h"
12
13 #define _COMPONENT ACPI_UTILITIES
14 ACPI_MODULE_NAME("utbuffer")
15
16 /*******************************************************************************
17 *
18 * FUNCTION: acpi_ut_dump_buffer
19 *
20 * PARAMETERS: buffer - Buffer to dump
21 * count - Amount to dump, in bytes
22 * display - BYTE, WORD, DWORD, or QWORD display:
23 * DB_BYTE_DISPLAY
24 * DB_WORD_DISPLAY
25 * DB_DWORD_DISPLAY
26 * DB_QWORD_DISPLAY
27 * base_offset - Beginning buffer offset (display only)
28 *
29 * RETURN: None
30 *
31 * DESCRIPTION: Generic dump buffer in both hex and ascii.
32 *
33 ******************************************************************************/
acpi_ut_dump_buffer(u8 * buffer,u32 count,u32 display,u32 base_offset)34 void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset)
35 {
36 u32 i = 0;
37 u32 j;
38 u32 temp32;
39 u8 buf_char;
40
41 if (!buffer) {
42 acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n");
43 return;
44 }
45
46 if ((count < 4) || (count & 0x01)) {
47 display = DB_BYTE_DISPLAY;
48 }
49
50 /* Nasty little dump buffer routine! */
51
52 while (i < count) {
53
54 /* Print current offset */
55
56 acpi_os_printf("%8.4X: ", (base_offset + i));
57
58 /* Print 16 hex chars */
59
60 for (j = 0; j < 16;) {
61 if (i + j >= count) {
62
63 /* Dump fill spaces */
64
65 acpi_os_printf("%*s", ((display * 2) + 1), " ");
66 j += display;
67 continue;
68 }
69
70 switch (display) {
71 case DB_BYTE_DISPLAY:
72 default: /* Default is BYTE display */
73
74 acpi_os_printf("%02X ",
75 buffer[(acpi_size)i + j]);
76 break;
77
78 case DB_WORD_DISPLAY:
79
80 ACPI_MOVE_16_TO_32(&temp32,
81 &buffer[(acpi_size)i + j]);
82 acpi_os_printf("%04X ", temp32);
83 break;
84
85 case DB_DWORD_DISPLAY:
86
87 ACPI_MOVE_32_TO_32(&temp32,
88 &buffer[(acpi_size)i + j]);
89 acpi_os_printf("%08X ", temp32);
90 break;
91
92 case DB_QWORD_DISPLAY:
93
94 ACPI_MOVE_32_TO_32(&temp32,
95 &buffer[(acpi_size)i + j]);
96 acpi_os_printf("%08X", temp32);
97
98 ACPI_MOVE_32_TO_32(&temp32,
99 &buffer[(acpi_size)i + j +
100 4]);
101 acpi_os_printf("%08X ", temp32);
102 break;
103 }
104
105 j += display;
106 }
107
108 /*
109 * Print the ASCII equivalent characters but watch out for the bad
110 * unprintable ones (printable chars are 0x20 through 0x7E)
111 */
112 acpi_os_printf(" ");
113 for (j = 0; j < 16; j++) {
114 if (i + j >= count) {
115 acpi_os_printf("\n");
116 return;
117 }
118
119 /*
120 * Add comment characters so rest of line is ignored when
121 * compiled
122 */
123 if (j == 0) {
124 acpi_os_printf("// ");
125 }
126
127 buf_char = buffer[(acpi_size)i + j];
128 if (isprint(buf_char)) {
129 acpi_os_printf("%c", buf_char);
130 } else {
131 acpi_os_printf(".");
132 }
133 }
134
135 /* Done with that line. */
136
137 acpi_os_printf("\n");
138 i += 16;
139 }
140
141 return;
142 }
143
144 /*******************************************************************************
145 *
146 * FUNCTION: acpi_ut_debug_dump_buffer
147 *
148 * PARAMETERS: buffer - Buffer to dump
149 * count - Amount to dump, in bytes
150 * display - BYTE, WORD, DWORD, or QWORD display:
151 * DB_BYTE_DISPLAY
152 * DB_WORD_DISPLAY
153 * DB_DWORD_DISPLAY
154 * DB_QWORD_DISPLAY
155 * component_ID - Caller's component ID
156 *
157 * RETURN: None
158 *
159 * DESCRIPTION: Generic dump buffer in both hex and ascii.
160 *
161 ******************************************************************************/
162
163 void
acpi_ut_debug_dump_buffer(u8 * buffer,u32 count,u32 display,u32 component_id)164 acpi_ut_debug_dump_buffer(u8 *buffer, u32 count, u32 display, u32 component_id)
165 {
166
167 /* Only dump the buffer if tracing is enabled */
168
169 if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
170 (component_id & acpi_dbg_layer))) {
171 return;
172 }
173
174 acpi_ut_dump_buffer(buffer, count, display, 0);
175 }
176
177 #ifdef ACPI_APPLICATION
178 /*******************************************************************************
179 *
180 * FUNCTION: acpi_ut_dump_buffer_to_file
181 *
182 * PARAMETERS: file - File descriptor
183 * buffer - Buffer to dump
184 * count - Amount to dump, in bytes
185 * display - BYTE, WORD, DWORD, or QWORD display:
186 * DB_BYTE_DISPLAY
187 * DB_WORD_DISPLAY
188 * DB_DWORD_DISPLAY
189 * DB_QWORD_DISPLAY
190 * base_offset - Beginning buffer offset (display only)
191 *
192 * RETURN: None
193 *
194 * DESCRIPTION: Generic dump buffer in both hex and ascii to a file.
195 *
196 ******************************************************************************/
197
198 void
acpi_ut_dump_buffer_to_file(ACPI_FILE file,u8 * buffer,u32 count,u32 display,u32 base_offset)199 acpi_ut_dump_buffer_to_file(ACPI_FILE file,
200 u8 *buffer, u32 count, u32 display, u32 base_offset)
201 {
202 u32 i = 0;
203 u32 j;
204 u32 temp32;
205 u8 buf_char;
206
207 if (!buffer) {
208 fprintf(file, "Null Buffer Pointer in DumpBuffer!\n");
209 return;
210 }
211
212 if ((count < 4) || (count & 0x01)) {
213 display = DB_BYTE_DISPLAY;
214 }
215
216 /* Nasty little dump buffer routine! */
217
218 while (i < count) {
219
220 /* Print current offset */
221
222 fprintf(file, "%8.4X: ", (base_offset + i));
223
224 /* Print 16 hex chars */
225
226 for (j = 0; j < 16;) {
227 if (i + j >= count) {
228
229 /* Dump fill spaces */
230
231 fprintf(file, "%*s", ((display * 2) + 1), " ");
232 j += display;
233 continue;
234 }
235
236 switch (display) {
237 case DB_BYTE_DISPLAY:
238 default: /* Default is BYTE display */
239
240 fprintf(file, "%02X ",
241 buffer[(acpi_size)i + j]);
242 break;
243
244 case DB_WORD_DISPLAY:
245
246 ACPI_MOVE_16_TO_32(&temp32,
247 &buffer[(acpi_size)i + j]);
248 fprintf(file, "%04X ", temp32);
249 break;
250
251 case DB_DWORD_DISPLAY:
252
253 ACPI_MOVE_32_TO_32(&temp32,
254 &buffer[(acpi_size)i + j]);
255 fprintf(file, "%08X ", temp32);
256 break;
257
258 case DB_QWORD_DISPLAY:
259
260 ACPI_MOVE_32_TO_32(&temp32,
261 &buffer[(acpi_size)i + j]);
262 fprintf(file, "%08X", temp32);
263
264 ACPI_MOVE_32_TO_32(&temp32,
265 &buffer[(acpi_size)i + j +
266 4]);
267 fprintf(file, "%08X ", temp32);
268 break;
269 }
270
271 j += display;
272 }
273
274 /*
275 * Print the ASCII equivalent characters but watch out for the bad
276 * unprintable ones (printable chars are 0x20 through 0x7E)
277 */
278 fprintf(file, " ");
279 for (j = 0; j < 16; j++) {
280 if (i + j >= count) {
281 fprintf(file, "\n");
282 return;
283 }
284
285 buf_char = buffer[(acpi_size)i + j];
286 if (isprint(buf_char)) {
287 fprintf(file, "%c", buf_char);
288 } else {
289 fprintf(file, ".");
290 }
291 }
292
293 /* Done with that line. */
294
295 fprintf(file, "\n");
296 i += 16;
297 }
298
299 return;
300 }
301 #endif
302
