Travis Geiselbrecht | 1d0df69 | 2008-09-01 02:26:09 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2008 Travis Geiselbrecht |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files |
| 6 | * (the "Software"), to deal in the Software without restriction, |
| 7 | * including without limitation the rights to use, copy, modify, merge, |
| 8 | * publish, distribute, sublicense, and/or sell copies of the Software, |
| 9 | * and to permit persons to whom the Software is furnished to do so, |
| 10 | * subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be |
| 13 | * included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 19 | * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 20 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 21 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #include <ctype.h> |
| 25 | #include <debug.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <printf.h> |
| 28 | #include <list.h> |
| 29 | #include <string.h> |
| 30 | #include <arch/ops.h> |
| 31 | #include <platform.h> |
| 32 | #include <kernel/thread.h> |
| 33 | |
| 34 | void spin(uint32_t usecs) |
| 35 | { |
| 36 | bigtime_t start = current_time_hires(); |
| 37 | |
| 38 | while ((current_time_hires() - start) < usecs) |
| 39 | ; |
| 40 | } |
| 41 | |
| 42 | void halt(void) |
| 43 | { |
| 44 | enter_critical_section(); // disable ints |
| 45 | for(;;); |
| 46 | } |
| 47 | |
| 48 | void _panic(void *caller, const char *fmt, ...) |
| 49 | { |
| 50 | dprintf("panic (caller %p): ", caller); |
| 51 | |
| 52 | va_list ap; |
| 53 | va_start(ap, fmt); |
| 54 | dvprintf(fmt, ap); |
| 55 | va_end(ap); |
| 56 | |
| 57 | halt(); |
| 58 | } |
| 59 | |
| 60 | int dputs(const char *str) |
| 61 | { |
| 62 | while(*str != 0) { |
| 63 | dputc(*str++); |
| 64 | } |
| 65 | |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | int dprintf(const char *fmt, ...) |
| 70 | { |
| 71 | char buf[256]; |
| 72 | int err; |
| 73 | |
| 74 | va_list ap; |
| 75 | va_start(ap, fmt); |
| 76 | err = vsprintf(buf, fmt, ap); |
| 77 | va_end(ap); |
| 78 | |
| 79 | dputs(buf); |
| 80 | |
| 81 | return err; |
| 82 | } |
| 83 | |
| 84 | int dvprintf(const char *fmt, va_list ap) |
| 85 | { |
| 86 | char buf[256]; |
| 87 | int err; |
| 88 | |
| 89 | err = vsprintf(buf, fmt, ap); |
| 90 | |
| 91 | dputs(buf); |
| 92 | |
| 93 | return err; |
| 94 | } |
| 95 | |
| 96 | void hexdump(const void *ptr, size_t len) |
| 97 | { |
| 98 | addr_t address = (addr_t)ptr; |
| 99 | size_t count; |
| 100 | int i; |
| 101 | |
| 102 | for (count = 0 ; count < len; count += 16) { |
| 103 | printf("0x%08lx: ", address); |
| 104 | printf("%08x %08x %08x %08x |", *(const uint32_t *)address, *(const uint32_t *)(address + 4), *(const uint32_t *)(address + 8), *(const uint32_t *)(address + 12)); |
| 105 | for (i=0; i < 16; i++) { |
| 106 | char c = *(const char *)(address + i); |
| 107 | if (isalpha(c)) { |
| 108 | printf("%c", c); |
| 109 | } else { |
| 110 | printf("."); |
| 111 | } |
| 112 | } |
| 113 | printf("|\n"); |
| 114 | address += 16; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | void hexdump8(const void *ptr, size_t len) |
| 119 | { |
| 120 | addr_t address = (addr_t)ptr; |
| 121 | size_t count; |
| 122 | int i; |
| 123 | |
| 124 | for (count = 0 ; count < len; count += 16) { |
| 125 | printf("0x%08lx: ", address); |
| 126 | for (i=0; i < 16; i++) { |
| 127 | printf("0x%02hhx ", *(const uint8_t *)(address + i)); |
| 128 | } |
| 129 | printf("\n"); |
| 130 | address += 16; |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | #ifdef WITH_APP_CONSOLE |
| 135 | #include <app/console.h> |
| 136 | |
| 137 | static int cmd_display_mem(int argc, const cmd_args *argv); |
| 138 | static int cmd_modify_mem(int argc, const cmd_args *argv); |
| 139 | static int cmd_fill_mem(int argc, const cmd_args *argv); |
| 140 | static int cmd_reset(int argc, const cmd_args *argv); |
| 141 | static int cmd_memtest(int argc, const cmd_args *argv); |
| 142 | static int cmd_copy_mem(int argc, const cmd_args *argv); |
| 143 | |
| 144 | STATIC_COMMAND_START |
| 145 | #if DEBUGLEVEL > 0 |
| 146 | { "dw", "display memory in words", &cmd_display_mem }, |
| 147 | { "dh", "display memory in halfwords", &cmd_display_mem }, |
| 148 | { "db", "display memory in bytes", &cmd_display_mem }, |
| 149 | { "mw", "modify word of memory", &cmd_modify_mem }, |
| 150 | { "mh", "modify halfword of memory", &cmd_modify_mem }, |
| 151 | { "mb", "modify byte of memory", &cmd_modify_mem }, |
| 152 | { "fw", "fill range of memory by word", &cmd_fill_mem }, |
| 153 | { "fh", "fill range of memory by halfword", &cmd_fill_mem }, |
| 154 | { "fb", "fill range of memory by byte", &cmd_fill_mem }, |
| 155 | { "mc", "copy a range of memory", &cmd_copy_mem }, |
| 156 | #endif |
| 157 | #if DEBUGLEVEL > 1 |
| 158 | { "mtest", "simple memory test", &cmd_memtest }, |
| 159 | #endif |
| 160 | STATIC_COMMAND_END(mem); |
| 161 | |
| 162 | static int cmd_display_mem(int argc, const cmd_args *argv) |
| 163 | { |
| 164 | int size; |
| 165 | |
| 166 | if (argc < 3) { |
| 167 | printf("not enough arguments\n"); |
| 168 | printf("%s <address> <length>\n", argv[0].str); |
| 169 | return -1; |
| 170 | } |
| 171 | |
| 172 | if (strcmp(argv[0].str, "dw") == 0) { |
| 173 | size = 4; |
| 174 | } else if (strcmp(argv[0].str, "dh") == 0) { |
| 175 | size = 2; |
| 176 | } else { |
| 177 | size = 1; |
| 178 | } |
| 179 | |
| 180 | unsigned long address = argv[1].u; |
| 181 | size_t len = argv[2].u; |
| 182 | unsigned long stop = address + len; |
| 183 | int count = 0; |
| 184 | |
| 185 | if ((address & (size - 1)) != 0) { |
| 186 | printf("unaligned address, cannot display\n"); |
| 187 | return -1; |
| 188 | } |
| 189 | |
| 190 | for ( ; address < stop; address += size) { |
| 191 | if (count == 0) |
| 192 | printf("0x%08lx: ", address); |
| 193 | switch (size) { |
| 194 | case 4: |
| 195 | printf("%08x ", *(uint32_t *)address); |
| 196 | break; |
| 197 | case 2: |
| 198 | printf("%04hx ", *(uint16_t *)address); |
| 199 | break; |
| 200 | case 1: |
| 201 | printf("%02hhx ", *(uint8_t *)address); |
| 202 | break; |
| 203 | } |
| 204 | count += size; |
| 205 | if (count == 16) { |
| 206 | printf("\n"); |
| 207 | count = 0; |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | if (count != 0) |
| 212 | printf("\n"); |
| 213 | |
| 214 | return 0; |
| 215 | } |
| 216 | |
| 217 | static int cmd_modify_mem(int argc, const cmd_args *argv) |
| 218 | { |
| 219 | int size; |
| 220 | |
| 221 | if (argc < 3) { |
| 222 | printf("not enough arguments\n"); |
| 223 | printf("%s <address> <val>\n", argv[0].str); |
| 224 | return -1; |
| 225 | } |
| 226 | |
| 227 | if (strcmp(argv[0].str, "mw") == 0) { |
| 228 | size = 4; |
| 229 | } else if (strcmp(argv[0].str, "mh") == 0) { |
| 230 | size = 2; |
| 231 | } else { |
| 232 | size = 1; |
| 233 | } |
| 234 | |
| 235 | unsigned long address = argv[1].u; |
| 236 | unsigned int val = argv[2].u; |
| 237 | |
| 238 | if ((address & (size - 1)) != 0) { |
| 239 | printf("unaligned address, cannot modify\n"); |
| 240 | return -1; |
| 241 | } |
| 242 | |
| 243 | switch (size) { |
| 244 | case 4: |
| 245 | *(uint32_t *)address = (uint32_t)val; |
| 246 | break; |
| 247 | case 2: |
| 248 | *(uint16_t *)address = (uint16_t)val; |
| 249 | break; |
| 250 | case 1: |
| 251 | *(uint8_t *)address = (uint8_t)val; |
| 252 | break; |
| 253 | } |
| 254 | |
| 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | static int cmd_fill_mem(int argc, const cmd_args *argv) |
| 259 | { |
| 260 | int size; |
| 261 | |
| 262 | if (argc < 4) { |
| 263 | printf("not enough arguments\n"); |
| 264 | printf("%s <address> <len> <val>\n", argv[0].str); |
| 265 | return -1; |
| 266 | } |
| 267 | |
| 268 | if (strcmp(argv[0].str, "fw") == 0) { |
| 269 | size = 4; |
| 270 | } else if (strcmp(argv[0].str, "fh") == 0) { |
| 271 | size = 2; |
| 272 | } else { |
| 273 | size = 1; |
| 274 | } |
| 275 | |
| 276 | unsigned long address = argv[1].u; |
| 277 | unsigned long len = argv[2].u; |
| 278 | unsigned long stop = address + len; |
| 279 | unsigned int val = argv[3].u; |
| 280 | |
| 281 | if ((address & (size - 1)) != 0) { |
| 282 | printf("unaligned address, cannot modify\n"); |
| 283 | return -1; |
| 284 | } |
| 285 | |
| 286 | for ( ; address < stop; address += size) { |
| 287 | switch (size) { |
| 288 | case 4: |
| 289 | *(uint32_t *)address = (uint32_t)val; |
| 290 | break; |
| 291 | case 2: |
| 292 | *(uint16_t *)address = (uint16_t)val; |
| 293 | break; |
| 294 | case 1: |
| 295 | *(uint8_t *)address = (uint8_t)val; |
| 296 | break; |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | return 0; |
| 301 | } |
| 302 | |
| 303 | static int cmd_copy_mem(int argc, const cmd_args *argv) |
| 304 | { |
| 305 | if (argc < 4) { |
| 306 | printf("not enough arguments\n"); |
| 307 | printf("%s <source address> <target address> <len>\n", argv[0].str); |
| 308 | return -1; |
| 309 | } |
| 310 | |
| 311 | addr_t source = argv[1].u; |
| 312 | addr_t target = argv[2].u; |
| 313 | size_t len = argv[3].u; |
| 314 | |
| 315 | memcpy((void *)target, (const void *)source, len); |
| 316 | |
| 317 | return 0; |
| 318 | } |
| 319 | |
| 320 | static int cmd_memtest(int argc, const cmd_args *argv) |
| 321 | { |
| 322 | if (argc < 3) { |
| 323 | printf("not enough arguments\n"); |
| 324 | printf("%s <base> <len>\n", argv[0].str); |
| 325 | return -1; |
| 326 | } |
| 327 | |
| 328 | uint32_t *ptr; |
| 329 | size_t len; |
| 330 | |
| 331 | ptr = (uint32_t *)argv[1].u; |
| 332 | len = (size_t)argv[2].u; |
| 333 | |
| 334 | size_t i; |
| 335 | // write out |
| 336 | printf("writing first pass..."); |
| 337 | for (i = 0; i < len / 4; i++) { |
| 338 | ptr[i] = i; |
| 339 | } |
| 340 | printf("done\n"); |
| 341 | |
| 342 | // verify |
| 343 | printf("verifying..."); |
| 344 | for (i = 0; i < len / 4; i++) { |
| 345 | if (ptr[i] != i) |
| 346 | printf("error at %p\n", &ptr[i]); |
| 347 | } |
| 348 | printf("done\n"); |
| 349 | |
| 350 | return 0; |
| 351 | } |
| 352 | |
| 353 | #endif |
| 354 | |