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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include <string.h>
  25
  26 #include "etm.h"
  27 #include "etb.h"
  28
  29 #include "armv4_5.h"
  30 #include "arm7_9_common.h"
  31
  32 #include "log.h"
  33 #include "arm_jtag.h"
  34 #include "types.h"
  35 #include "binarybuffer.h"
  36 #include "target.h"
  37 #include "register.h"
  38 #include "jtag.h"
  39 #include "fileio.h"
  40
  41 #include <stdlib.h>
  42
  43 /* ETM register access functionality
  44  *
  45  */
  46
  47 bitfield_desc_t etm_comms_ctrl_bitfield_desc[] =
  48 {
  49         {"R", 1},
  50         {"W", 1},
  51         {"reserved", 26},
  52         {"version", 4}
  53 };
  54
  55 int etm_reg_arch_info[] =
  56 {
  57         0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
  58         0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
  59         0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
  60         0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
  61         0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
  62         0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
  63         0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
  64         0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
  65         0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
  66         0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
  67         0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
  68         0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
  69         0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x67,
  70         0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
  71 };
  72
  73 int etm_reg_arch_size_info[] =
  74 {
  75         32, 32, 17, 8, 3, 9, 32, 16,
  76         17, 26, 25, 8, 17, 32, 32, 17,
  77         32, 32, 32, 32, 32, 32, 32, 32,
  78         32, 32, 32, 32, 32, 32, 32, 32,
  79         7, 7, 7, 7, 7, 7, 7, 7,
  80         7, 7, 7, 7, 7, 7, 7, 7,
  81         32, 32, 32, 32, 32, 32, 32, 32,
  82         32, 32, 32, 32, 32, 32, 32, 32,
  83         32, 32, 32, 32, 32, 32, 32, 32,
  84         32, 32, 32, 32, 32, 32, 32, 32,
  85         16, 16, 16, 16, 18, 18, 18, 18,
  86         17, 17, 17, 17, 16, 16, 16, 16,
  87         17, 17, 17, 17, 17, 17, 2,
  88         17, 17, 17, 17, 32, 32, 32, 32
  89 };
  90
  91 char* etm_reg_list[] =
  92 {
  93         "ETM_CTRL",
  94         "ETM_CONFIG",
  95         "ETM_TRIG_EVENT",
  96         "ETM_MMD_CTRL",
  97         "ETM_STATUS",
  98         "ETM_SYS_CONFIG",
  99         "ETM_TRACE_RESOURCE_CTRL",
 100         "ETM_TRACE_EN_CTRL2",
 101         "ETM_TRACE_EN_EVENT",
 102         "ETM_TRACE_EN_CTRL1",
 103         "ETM_FIFOFULL_REGION",
 104         "ETM_FIFOFULL_LEVEL",
 105         "ETM_VIEWDATA_EVENT",
 106         "ETM_VIEWDATA_CTRL1",
 107         "ETM_VIEWDATA_CTRL2",
 108         "ETM_VIEWDATA_CTRL3",
 109         "ETM_ADDR_COMPARATOR_VALUE1",
 110         "ETM_ADDR_COMPARATOR_VALUE2",
 111         "ETM_ADDR_COMPARATOR_VALUE3",
 112         "ETM_ADDR_COMPARATOR_VALUE4",
 113         "ETM_ADDR_COMPARATOR_VALUE5",
 114         "ETM_ADDR_COMPARATOR_VALUE6",
 115         "ETM_ADDR_COMPARATOR_VALUE7",
 116         "ETM_ADDR_COMPARATOR_VALUE8",
 117         "ETM_ADDR_COMPARATOR_VALUE9",
 118         "ETM_ADDR_COMPARATOR_VALUE10",
 119         "ETM_ADDR_COMPARATOR_VALUE11",
 120         "ETM_ADDR_COMPARATOR_VALUE12",
 121         "ETM_ADDR_COMPARATOR_VALUE13",
 122         "ETM_ADDR_COMPARATOR_VALUE14",
 123         "ETM_ADDR_COMPARATOR_VALUE15",
 124         "ETM_ADDR_COMPARATOR_VALUE16",
 125         "ETM_ADDR_ACCESS_TYPE1",
 126         "ETM_ADDR_ACCESS_TYPE2",
 127         "ETM_ADDR_ACCESS_TYPE3",
 128         "ETM_ADDR_ACCESS_TYPE4",
 129         "ETM_ADDR_ACCESS_TYPE5",
 130         "ETM_ADDR_ACCESS_TYPE6",
 131         "ETM_ADDR_ACCESS_TYPE7",
 132         "ETM_ADDR_ACCESS_TYPE8",
 133         "ETM_ADDR_ACCESS_TYPE9",
 134         "ETM_ADDR_ACCESS_TYPE10",
 135         "ETM_ADDR_ACCESS_TYPE11",
 136         "ETM_ADDR_ACCESS_TYPE12",
 137         "ETM_ADDR_ACCESS_TYPE13",
 138         "ETM_ADDR_ACCESS_TYPE14",
 139         "ETM_ADDR_ACCESS_TYPE15",
 140         "ETM_ADDR_ACCESS_TYPE16",
 141         "ETM_DATA_COMPARATOR_VALUE1",
 142         "ETM_DATA_COMPARATOR_VALUE2",
 143         "ETM_DATA_COMPARATOR_VALUE3",
 144         "ETM_DATA_COMPARATOR_VALUE4",
 145         "ETM_DATA_COMPARATOR_VALUE5",
 146         "ETM_DATA_COMPARATOR_VALUE6",
 147         "ETM_DATA_COMPARATOR_VALUE7",
 148         "ETM_DATA_COMPARATOR_VALUE8",
 149         "ETM_DATA_COMPARATOR_VALUE9",
 150         "ETM_DATA_COMPARATOR_VALUE10",
 151         "ETM_DATA_COMPARATOR_VALUE11",
 152         "ETM_DATA_COMPARATOR_VALUE12",
 153         "ETM_DATA_COMPARATOR_VALUE13",
 154         "ETM_DATA_COMPARATOR_VALUE14",
 155         "ETM_DATA_COMPARATOR_VALUE15",
 156         "ETM_DATA_COMPARATOR_VALUE16",
 157         "ETM_DATA_COMPARATOR_MASK1",
 158         "ETM_DATA_COMPARATOR_MASK2",
 159         "ETM_DATA_COMPARATOR_MASK3",
 160         "ETM_DATA_COMPARATOR_MASK4",
 161         "ETM_DATA_COMPARATOR_MASK5",
 162         "ETM_DATA_COMPARATOR_MASK6",
 163         "ETM_DATA_COMPARATOR_MASK7",
 164         "ETM_DATA_COMPARATOR_MASK8",
 165         "ETM_DATA_COMPARATOR_MASK9",
 166         "ETM_DATA_COMPARATOR_MASK10",
 167         "ETM_DATA_COMPARATOR_MASK11",
 168         "ETM_DATA_COMPARATOR_MASK12",
 169         "ETM_DATA_COMPARATOR_MASK13",
 170         "ETM_DATA_COMPARATOR_MASK14",
 171         "ETM_DATA_COMPARATOR_MASK15",
 172         "ETM_DATA_COMPARATOR_MASK16",
 173         "ETM_COUNTER_INITAL_VALUE1",
 174         "ETM_COUNTER_INITAL_VALUE2",
 175         "ETM_COUNTER_INITAL_VALUE3",
 176         "ETM_COUNTER_INITAL_VALUE4",
 177         "ETM_COUNTER_ENABLE1",
 178         "ETM_COUNTER_ENABLE2",
 179         "ETM_COUNTER_ENABLE3",
 180         "ETM_COUNTER_ENABLE4",
 181         "ETM_COUNTER_RELOAD_VALUE1",
 182         "ETM_COUNTER_RELOAD_VALUE2",
 183         "ETM_COUNTER_RELOAD_VALUE3",
 184         "ETM_COUNTER_RELOAD_VALUE4",
 185         "ETM_COUNTER_VALUE1",
 186         "ETM_COUNTER_VALUE2",
 187         "ETM_COUNTER_VALUE3",
 188         "ETM_COUNTER_VALUE4",
 189         "ETM_SEQUENCER_CTRL1",
 190         "ETM_SEQUENCER_CTRL2",
 191         "ETM_SEQUENCER_CTRL3",
 192         "ETM_SEQUENCER_CTRL4",
 193         "ETM_SEQUENCER_CTRL5",
 194         "ETM_SEQUENCER_CTRL6",
 195         "ETM_SEQUENCER_STATE",
 196         "ETM_EXTERNAL_OUTPUT1",
 197         "ETM_EXTERNAL_OUTPUT2",
 198         "ETM_EXTERNAL_OUTPUT3",
 199         "ETM_EXTERNAL_OUTPUT4",
 200         "ETM_CONTEXTID_COMPARATOR_VALUE1",
 201         "ETM_CONTEXTID_COMPARATOR_VALUE2",
 202         "ETM_CONTEXTID_COMPARATOR_VALUE3",
 203         "ETM_CONTEXTID_COMPARATOR_MASK"
 204 };
 205
 206 int etm_reg_arch_type = -1;
 207
 208 int etm_get_reg(reg_t *reg);
 209 int etm_set_reg(reg_t *reg, u32 value);
 210 int etm_set_reg_w_exec(reg_t *reg, u8 *buf);
 211
 212 int etm_write_reg(reg_t *reg, u32 value);
 213 int etm_read_reg(reg_t *reg);
 214
 215 command_t *etm_cmd = NULL;
 216
 217 reg_cache_t* etm_build_reg_cache(target_t *target, arm_jtag_t *jtag_info, etm_context_t *etm_ctx)
 218 {
 219         reg_cache_t *reg_cache = malloc(sizeof(reg_cache_t));
 220         reg_t *reg_list = NULL;
 221         etm_reg_t *arch_info = NULL;
 222         int num_regs = sizeof(etm_reg_arch_info)/sizeof(int);
 223         int i;
 224         u32 etm_ctrl_value;
 225
 226         /* register a register arch-type for etm registers only once */
 227         if (etm_reg_arch_type == -1)
 228                 etm_reg_arch_type = register_reg_arch_type(etm_get_reg, etm_set_reg_w_exec);
 229
 230         /* the actual registers are kept in two arrays */
 231         reg_list = calloc(num_regs, sizeof(reg_t));
 232         arch_info = calloc(num_regs, sizeof(etm_reg_t));
 233
 234         /* fill in values for the reg cache */
 235         reg_cache->name = "etm registers";
 236         reg_cache->next = NULL;
 237         reg_cache->reg_list = reg_list;
 238         reg_cache->num_regs = num_regs;
 239
 240         /* set up registers */
 241         for (i = 0; i < num_regs; i++)
 242         {
 243                 reg_list[i].name = etm_reg_list[i];
 244                 reg_list[i].size = 32;
 245                 reg_list[i].dirty = 0;
 246                 reg_list[i].valid = 0;
 247                 reg_list[i].bitfield_desc = NULL;
 248                 reg_list[i].num_bitfields = 0;
 249                 reg_list[i].value = calloc(1, 4);
 250                 reg_list[i].arch_info = &arch_info[i];
 251                 reg_list[i].arch_type = etm_reg_arch_type;
 252                 reg_list[i].size = etm_reg_arch_size_info[i];
 253                 arch_info[i].addr = etm_reg_arch_info[i];
 254                 arch_info[i].jtag_info = jtag_info;
 255         }
 256
 257         /* initialize some ETM control register settings */
 258         etm_get_reg(&reg_list[ETM_CTRL]);
 259         etm_ctrl_value = buf_get_u32(reg_list[ETM_CTRL].value, 0, reg_list[ETM_CTRL].size);
 260
 261         /* clear the ETM powerdown bit (0) */
 262         etm_ctrl_value &= ~0x1;
 263
 264         /* configure port width (6:4), mode (17:16) and clocking (13) */
 265         etm_ctrl_value = (etm_ctrl_value &
 266                 ~ETM_PORT_WIDTH_MASK & ~ETM_PORT_MODE_MASK & ~ETM_PORT_CLOCK_MASK)
 267                 | etm_ctx->portmode;
 268
 269         buf_set_u32(reg_list[ETM_CTRL].value, 0, reg_list[ETM_CTRL].size, etm_ctrl_value);
 270         etm_store_reg(&reg_list[ETM_CTRL]);
 271
 272         /* the ETM might have an ETB connected */
 273         if (strcmp(etm_ctx->capture_driver->name, "etb") == 0)
 274         {
 275                 etb_t *etb = etm_ctx->capture_driver_priv;
 276
 277                 if (!etb)
 278                 {
 279                         ERROR("etb selected as etm capture driver, but no ETB configured");
 280                         return ERROR_OK;
 281                 }
 282
 283                 reg_cache->next = etb_build_reg_cache(etb);
 284
 285                 etb->reg_cache = reg_cache->next;
 286
 287                 if (etm_ctx->capture_driver->init(etm_ctx) != ERROR_OK)
 288                 {
 289                         ERROR("ETM capture driver initialization failed");
 290                         exit(-1);
 291                 }
 292         }
 293
 294         return reg_cache;
 295 }
 296
 297 int etm_get_reg(reg_t *reg)
 298 {
 299         if (etm_read_reg(reg) != ERROR_OK)
 300         {
 301                 ERROR("BUG: error scheduling etm register read");
 302                 exit(-1);
 303         }
 304
 305         if (jtag_execute_queue() != ERROR_OK)
 306         {
 307                 ERROR("register read failed");
 308         }
 309
 310         return ERROR_OK;
 311 }
 312
 313 int etm_read_reg_w_check(reg_t *reg, u8* check_value, u8* check_mask)
 314 {
 315         etm_reg_t *etm_reg = reg->arch_info;
 316         u8 reg_addr = etm_reg->addr & 0x7f;
 317         scan_field_t fields[3];
 318
 319         DEBUG("%i", etm_reg->addr);
 320
 321         jtag_add_end_state(TAP_RTI);
 322         arm_jtag_scann(etm_reg->jtag_info, 0x6);
 323         arm_jtag_set_instr(etm_reg->jtag_info, etm_reg->jtag_info->intest_instr, NULL);
 324
 325         fields[0].device = etm_reg->jtag_info->chain_pos;
 326         fields[0].num_bits = 32;
 327         fields[0].out_value = reg->value;
 328         fields[0].out_mask = NULL;
 329         fields[0].in_value = NULL;
 330         fields[0].in_check_value = NULL;
 331         fields[0].in_check_mask = NULL;
 332         fields[0].in_handler = NULL;
 333         fields[0].in_handler_priv = NULL;
 334
 335         fields[1].device = etm_reg->jtag_info->chain_pos;
 336         fields[1].num_bits = 7;
 337         fields[1].out_value = malloc(1);
 338         buf_set_u32(fields[1].out_value, 0, 7, reg_addr);
 339         fields[1].out_mask = NULL;
 340         fields[1].in_value = NULL;
 341         fields[1].in_check_value = NULL;
 342         fields[1].in_check_mask = NULL;
 343         fields[1].in_handler = NULL;
 344         fields[1].in_handler_priv = NULL;
 345
 346         fields[2].device = etm_reg->jtag_info->chain_pos;
 347         fields[2].num_bits = 1;
 348         fields[2].out_value = malloc(1);
 349         buf_set_u32(fields[2].out_value, 0, 1, 0);
 350         fields[2].out_mask = NULL;
 351         fields[2].in_value = NULL;
 352         fields[2].in_check_value = NULL;
 353         fields[2].in_check_mask = NULL;
 354         fields[2].in_handler = NULL;
 355         fields[2].in_handler_priv = NULL;
 356
 357         jtag_add_dr_scan(3, fields, -1, NULL);
 358
 359         fields[0].in_value = reg->value;
 360         fields[0].in_check_value = check_value;
 361         fields[0].in_check_mask = check_mask;
 362
 363         jtag_add_dr_scan(3, fields, -1, NULL);
 364
 365         free(fields[1].out_value);
 366         free(fields[2].out_value);
 367
 368         return ERROR_OK;
 369 }
 370
 371 int etm_read_reg(reg_t *reg)
 372 {
 373         return etm_read_reg_w_check(reg, NULL, NULL);
 374 }
 375
 376 int etm_set_reg(reg_t *reg, u32 value)
 377 {
 378         if (etm_write_reg(reg, value) != ERROR_OK)
 379         {
 380                 ERROR("BUG: error scheduling etm register write");
 381                 exit(-1);
 382         }
 383
 384         buf_set_u32(reg->value, 0, reg->size, value);
 385         reg->valid = 1;
 386         reg->dirty = 0;
 387
 388         return ERROR_OK;
 389 }
 390
 391 int etm_set_reg_w_exec(reg_t *reg, u8 *buf)
 392 {
 393         etm_set_reg(reg, buf_get_u32(buf, 0, reg->size));
 394
 395         if (jtag_execute_queue() != ERROR_OK)
 396         {
 397                 ERROR("register write failed");
 398                 exit(-1);
 399         }
 400         return ERROR_OK;
 401 }
 402
 403 int etm_write_reg(reg_t *reg, u32 value)
 404 {
 405         etm_reg_t *etm_reg = reg->arch_info;
 406         u8 reg_addr = etm_reg->addr & 0x7f;
 407         scan_field_t fields[3];
 408
 409         DEBUG("%i: 0x%8.8x", etm_reg->addr, value);
 410
 411         jtag_add_end_state(TAP_RTI);
 412         arm_jtag_scann(etm_reg->jtag_info, 0x6);
 413         arm_jtag_set_instr(etm_reg->jtag_info, etm_reg->jtag_info->intest_instr, NULL);
 414
 415         fields[0].device = etm_reg->jtag_info->chain_pos;
 416         fields[0].num_bits = 32;
 417         fields[0].out_value = malloc(4);
 418         buf_set_u32(fields[0].out_value, 0, 32, value);
 419         fields[0].out_mask = NULL;
 420         fields[0].in_value = NULL;
 421         fields[0].in_check_value = NULL;
 422         fields[0].in_check_mask = NULL;
 423         fields[0].in_handler = NULL;
 424         fields[0].in_handler_priv = NULL;
 425
 426         fields[1].device = etm_reg->jtag_info->chain_pos;
 427         fields[1].num_bits = 7;
 428         fields[1].out_value = malloc(1);
 429         buf_set_u32(fields[1].out_value, 0, 7, reg_addr);
 430         fields[1].out_mask = NULL;
 431         fields[1].in_value = NULL;
 432         fields[1].in_check_value = NULL;
 433         fields[1].in_check_mask = NULL;
 434         fields[1].in_handler = NULL;
 435         fields[1].in_handler_priv = NULL;
 436
 437         fields[2].device = etm_reg->jtag_info->chain_pos;
 438         fields[2].num_bits = 1;
 439         fields[2].out_value = malloc(1);
 440         buf_set_u32(fields[2].out_value, 0, 1, 1);
 441         fields[2].out_mask = NULL;
 442         fields[2].in_value = NULL;
 443         fields[2].in_check_value = NULL;
 444         fields[2].in_check_mask = NULL;
 445         fields[2].in_handler = NULL;
 446         fields[2].in_handler_priv = NULL;
 447
 448         jtag_add_dr_scan(3, fields, -1, NULL);
 449
 450         free(fields[0].out_value);
 451         free(fields[1].out_value);
 452         free(fields[2].out_value);
 453
 454         return ERROR_OK;
 455 }
 456
 457 int etm_store_reg(reg_t *reg)
 458 {
 459         return etm_write_reg(reg, buf_get_u32(reg->value, 0, reg->size));
 460 }
 461
 462 /* ETM trace analysis functionality
 463  *
 464  */
 465 extern etm_capture_driver_t etb_capture_driver;
 466
 467 etm_capture_driver_t *etm_capture_drivers[] =
 468 {
 469         &etb_capture_driver,
 470         NULL
 471 };
 472
 473 char *etmv1v1_branch_reason_strings[] =
 474 {
 475         "normal PC change",
 476         "tracing enabled",
 477         "trace restarted after overflow",
 478         "exit from debug",
 479         "periodic synchronization",
 480         "reserved",
 481         "reserved",
 482         "reserved",
 483 };
 484
 485 int etmv1_next_packet(etm_context_t *ctx, u8 *packet)
 486 {
 487
 488
 489         return ERROR_OK;
 490 }
 491
 492 int etmv1_analyse_trace(etm_context_t *ctx)
 493 {
 494         ctx->pipe_index = 0;
 495         ctx->data_index = 0;
 496
 497         while (ctx->pipe_index < ctx->trace_depth)
 498         {
 499                 switch (ctx->trace_data[ctx->pipe_index].pipestat)
 500                 {
 501                         case STAT_IE:
 502                         case STAT_ID:
 503                                 break;
 504                         case STAT_IN:
 505                                 DEBUG("IN");
 506                                 break;
 507                         case STAT_WT:
 508                                 DEBUG("WT");
 509                                 break;
 510                         case STAT_BE:
 511                         case STAT_BD:
 512                                 break;
 513                         case STAT_TD:
 514                                 /* TODO: in cycle accurate trace, we have to count cycles */
 515                                 DEBUG("TD");
 516                                 break;
 517                 }
 518         }
 519
 520         return ERROR_OK;
 521 }
 522
 523 int handle_etm_tracemode_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 524 {
 525         target_t *target;
 526         armv4_5_common_t *armv4_5;
 527         arm7_9_common_t *arm7_9;
 528         etmv1_tracemode_t tracemode;
 529
 530         target = get_current_target(cmd_ctx);
 531
 532         if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
 533         {
 534                 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
 535                 return ERROR_OK;
 536         }
 537
 538         if (!arm7_9->etm_ctx)
 539         {
 540                 command_print(cmd_ctx, "current target doesn't have an ETM configured");
 541                 return ERROR_OK;
 542         }
 543
 544         tracemode = arm7_9->etm_ctx->tracemode;
 545
 546         if (argc == 3)
 547         {
 548                 if (strcmp(args[0], "none") == 0)
 549                 {
 550                         tracemode = ETMV1_TRACE_NONE;
 551                 }
 552                 else if (strcmp(args[0], "data") == 0)
 553                 {
 554                         tracemode = ETMV1_TRACE_DATA;
 555                 }
 556                 else if (strcmp(args[0], "address") == 0)
 557                 {
 558                         tracemode = ETMV1_TRACE_ADDR;
 559                 }
 560                 else if (strcmp(args[0], "all") == 0)
 561                 {
 562                         tracemode = ETMV1_TRACE_DATA | ETMV1_TRACE_ADDR;
 563                 }
 564                 else
 565                 {
 566                         command_print(cmd_ctx, "invalid option '%s'", args[0]);
 567                         return ERROR_OK;
 568                 }
 569
 570                 switch (strtol(args[1], NULL, 0))
 571                 {
 572                         case 0:
 573                                 tracemode |= ETMV1_CONTEXTID_NONE;
 574                                 break;
 575                         case 8:
 576                                 tracemode |= ETMV1_CONTEXTID_8;
 577                                 break;
 578                         case 16:
 579                                 tracemode |= ETMV1_CONTEXTID_16;
 580                                 break;
 581                         case 32:
 582                                 tracemode |= ETMV1_CONTEXTID_32;
 583                                 break;
 584                         default:
 585                                 command_print(cmd_ctx, "invalid option '%s'", args[1]);
 586                                 return ERROR_OK;
 587                 }
 588
 589                 if (strcmp(args[2], "enable") == 0)
 590                 {
 591                         tracemode |= ETMV1_CYCLE_ACCURATE;
 592                 }
 593                 else if (strcmp(args[2], "disable") == 0)
 594                 {
 595                         tracemode |= 0;
 596                 }
 597                 else
 598                 {
 599                         command_print(cmd_ctx, "invalid option '%s'", args[2]);
 600                         return ERROR_OK;
 601                 }
 602         }
 603         else if (argc != 0)
 604         {
 605                 command_print(cmd_ctx, "usage: configure trace mode <none|data|address|all> <context id bits> <enable|disable cycle accurate>");
 606                 return ERROR_OK;
 607         }
 608
 609         command_print(cmd_ctx, "current tracemode configuration:");
 610
 611         switch (tracemode & ETMV1_TRACE_MASK)
 612         {
 613                 case ETMV1_TRACE_NONE:
 614                         command_print(cmd_ctx, "data tracing: none");
 615                         break;
 616                 case ETMV1_TRACE_DATA:
 617                         command_print(cmd_ctx, "data tracing: data only");
 618                         break;
 619                 case ETMV1_TRACE_ADDR:
 620                         command_print(cmd_ctx, "data tracing: address only");
 621                         break;
 622                 case ETMV1_TRACE_DATA | ETMV1_TRACE_ADDR:
 623                         command_print(cmd_ctx, "data tracing: address and data");
 624                         break;
 625         }
 626
 627         switch (tracemode & ETMV1_CONTEXTID_MASK)
 628         {
 629                 case ETMV1_CONTEXTID_NONE:
 630                         command_print(cmd_ctx, "contextid tracing: none");
 631                         break;
 632                 case ETMV1_CONTEXTID_8:
 633                         command_print(cmd_ctx, "contextid tracing: 8 bit");
 634                         break;
 635                 case ETMV1_CONTEXTID_16:
 636                         command_print(cmd_ctx, "contextid tracing: 16 bit");
 637                         break;
 638                 case ETMV1_CONTEXTID_32:
 639                         command_print(cmd_ctx, "contextid tracing: 32 bit");
 640                         break;
 641         }
 642
 643         if (tracemode & ETMV1_CYCLE_ACCURATE)
 644         {
 645                 command_print(cmd_ctx, "cycle-accurate tracing enabled");
 646         }
 647         else
 648         {
 649                 command_print(cmd_ctx, "cycle-accurate tracing disabled");
 650         }
 651
 652         /* only update ETM_CTRL register if tracemode changed */
 653         if (arm7_9->etm_ctx->tracemode != tracemode)
 654         {
 655                 reg_t *etm_ctrl_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CTRL];
 656
 657                 etm_get_reg(etm_ctrl_reg);
 658
 659                 buf_set_u32(etm_ctrl_reg->value, 2, 2, tracemode & ETMV1_TRACE_MASK);
 660                 buf_set_u32(etm_ctrl_reg->value, 14, 2, (tracemode & ETMV1_CONTEXTID_MASK) >> 4);
 661                 buf_set_u32(etm_ctrl_reg->value, 12, 1, (tracemode & ETMV1_CYCLE_ACCURATE) >> 8);
 662
 663                 etm_store_reg(etm_ctrl_reg);
 664
 665                 arm7_9->etm_ctx->tracemode = tracemode;
 666
 667                 /* invalidate old trace data */
 668                 arm7_9->etm_ctx->capture_status = TRACE_IDLE;
 669                 if (arm7_9->etm_ctx->trace_depth > 0)
 670                 {
 671                         free(arm7_9->etm_ctx->trace_data);
 672                 }
 673                 arm7_9->etm_ctx->trace_depth = 0;
 674         }
 675
 676         return ERROR_OK;
 677 }
 678
 679 int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 680 {
 681         target_t *target;
 682         armv4_5_common_t *armv4_5;
 683         arm7_9_common_t *arm7_9;
 684         etm_portmode_t portmode = 0x0;
 685         etm_context_t *etm_ctx = malloc(sizeof(etm_context_t));
 686         int i;
 687
 688         if (argc != 5)
 689         {
 690                 ERROR("incomplete 'etm config <target> <port_width> <port_mode> <clocking> <capture_driver>' command");
 691                 exit(-1);
 692         }
 693
 694         target = get_target_by_num(strtoul(args[0], NULL, 0));
 695
 696         if (!target)
 697         {
 698                 ERROR("target number '%s' not defined", args[0]);
 699                 exit(-1);
 700         }
 701
 702         if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
 703         {
 704                 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
 705                 return ERROR_OK;
 706         }
 707
 708         switch (strtoul(args[1], NULL, 0))
 709         {
 710                 case 4:
 711                         portmode |= ETM_PORT_4BIT;
 712                         break;
 713                 case 8:
 714                         portmode |= ETM_PORT_8BIT;
 715                         break;
 716                 case 16:
 717                         portmode |= ETM_PORT_16BIT;
 718                         break;
 719                 default:
 720                         command_print(cmd_ctx, "unsupported ETM port width '%s', must be 4, 8 or 16", args[1]);
 721                         return ERROR_OK;
 722         }
 723
 724         if (strcmp("normal", args[2]) == 0)
 725         {
 726                 portmode |= ETM_PORT_NORMAL;
 727         }
 728         else if (strcmp("multiplexed", args[2]) == 0)
 729         {
 730                 portmode |= ETM_PORT_MUXED;
 731         }
 732         else if (strcmp("demultiplexed", args[2]) == 0)
 733         {
 734                 portmode |= ETM_PORT_DEMUXED;
 735         }
 736         else
 737         {
 738                 command_print(cmd_ctx, "unsupported ETM port mode '%s', must be 'normal', 'multiplexed' or 'demultiplexed'", args[2]);
 739                 return ERROR_OK;
 740         }
 741
 742         if (strcmp("half", args[3]) == 0)
 743         {
 744                 portmode |= ETM_PORT_HALF_CLOCK;
 745         }
 746         else if (strcmp("full", args[3]) == 0)
 747         {
 748                 portmode |= ETM_PORT_FULL_CLOCK;
 749         }
 750         else
 751         {
 752                 command_print(cmd_ctx, "unsupported ETM port clocking '%s', must be 'full' or 'half'", args[3]);
 753                 return ERROR_OK;
 754         }
 755
 756         for (i=0; etm_capture_drivers[i]; i++)
 757         {
 758                 if (strcmp(args[4], etm_capture_drivers[i]->name) == 0)
 759                 {
 760                         if (etm_capture_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 761                         {
 762                                 free(etm_ctx);
 763                                 exit(-1);
 764                         }
 765
 766                         etm_ctx->capture_driver = etm_capture_drivers[i];
 767
 768                         break;
 769                 }
 770         }
 771
 772         etm_ctx->trace_data = NULL;
 773         etm_ctx->trace_depth = 0;
 774         etm_ctx->portmode = portmode;
 775         etm_ctx->tracemode = 0x0;
 776         etm_ctx->core_state = ARMV4_5_STATE_ARM;
 777         etm_ctx->pipe_index = 0;
 778         etm_ctx->data_index = 0;
 779         etm_ctx->current_pc = 0x0;
 780         etm_ctx->pc_ok = 0;
 781         etm_ctx->last_branch = 0x0;
 782         etm_ctx->last_ptr = 0x0;
 783         etm_ctx->context_id = 0x0;
 784
 785         arm7_9->etm_ctx = etm_ctx;
 786
 787         etm_register_user_commands(cmd_ctx);
 788
 789         return ERROR_OK;
 790 }
 791
 792 int handle_etm_status_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 793 {
 794         target_t *target;
 795         armv4_5_common_t *armv4_5;
 796         arm7_9_common_t *arm7_9;
 797         trace_status_t trace_status;
 798
 799         target = get_current_target(cmd_ctx);
 800
 801         if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
 802         {
 803                 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
 804                 return ERROR_OK;
 805         }
 806
 807         if (!arm7_9->etm_ctx)
 808         {
 809                 command_print(cmd_ctx, "current target doesn't have an ETM configured");
 810                 return ERROR_OK;
 811         }
 812
 813         trace_status = arm7_9->etm_ctx->capture_driver->status(arm7_9->etm_ctx);
 814
 815         if (trace_status == TRACE_IDLE)
 816         {
 817                 command_print(cmd_ctx, "tracing is idle");
 818         }
 819         else
 820         {
 821                 static char *completed = " completed";
 822                 static char *running = " is running";
 823                 static char *overflowed = ", trace overflowed";
 824                 static char *triggered = ", trace triggered";
 825
 826                 command_print(cmd_ctx, "trace collection%s%s%s",
 827                         (trace_status & TRACE_RUNNING) ? running : completed,
 828                         (trace_status & TRACE_OVERFLOWED) ? overflowed : "",
 829                         (trace_status & TRACE_TRIGGERED) ? triggered : "");
 830
 831                 if (arm7_9->etm_ctx->trace_depth > 0)
 832                 {
 833                         command_print(cmd_ctx, "%i frames of trace data read", arm7_9->etm_ctx->trace_depth);
 834                 }
 835         }
 836
 837         return ERROR_OK;
 838 }
 839
 840 int handle_etm_dump_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 841 {
 842         fileio_t file;
 843         target_t *target;
 844         armv4_5_common_t *armv4_5;
 845         arm7_9_common_t *arm7_9;
 846         etm_context_t *etm_ctx;
 847         u32 size_written;
 848
 849         if (argc != 1)
 850         {
 851                 command_print(cmd_ctx, "usage: etm dump <file>");
 852                 return ERROR_OK;
 853         }
 854
 855         target = get_current_target(cmd_ctx);
 856
 857         if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
 858         {
 859                 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
 860                 return ERROR_OK;
 861         }
 862
 863         if (!(etm_ctx = arm7_9->etm_ctx))
 864         {
 865                 command_print(cmd_ctx, "current target doesn't have an ETM configured");
 866                 return ERROR_OK;
 867         }
 868
 869         if (etm_ctx->capture_driver->status == TRACE_IDLE)
 870         {
 871                 command_print(cmd_ctx, "trace capture wasn't enabled, no trace data captured");
 872                 return ERROR_OK;
 873         }
 874
 875         if (etm_ctx->capture_driver->status(etm_ctx) & TRACE_RUNNING)
 876         {
 877                 /* TODO: if on-the-fly capture is to be supported, this needs to be changed */
 878                 command_print(cmd_ctx, "trace capture not completed");
 879                 return ERROR_OK;
 880         }
 881
 882         /* read the trace data if it wasn't read already */
 883         if (etm_ctx->trace_depth == 0)
 884                 etm_ctx->capture_driver->read_trace(etm_ctx);
 885
 886         if (fileio_open(&file, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
 887         {
 888                 command_print(cmd_ctx, "file open error: %s", file.error_str);
 889                 return ERROR_OK;
 890         }
 891
 892         //fileio_write(&file, etm_ctx->trace_depth * 4, (u8*)etm_ctx->trace_data, &size_written);
 893
 894         fileio_close(&file);
 895
 896         return ERROR_OK;
 897 }
 898
 899 int handle_etm_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 900 {
 901         fileio_t file;
 902         target_t *target;
 903         armv4_5_common_t *armv4_5;
 904         arm7_9_common_t *arm7_9;
 905         etm_context_t *etm_ctx;
 906         u32 size_read;
 907
 908         if (argc != 1)
 909         {
 910                 command_print(cmd_ctx, "usage: etm load <file>");
 911                 return ERROR_OK;
 912         }
 913
 914         target = get_current_target(cmd_ctx);
 915
 916         if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
 917         {
 918                 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
 919                 return ERROR_OK;
 920         }
 921
 922         if (!(etm_ctx = arm7_9->etm_ctx))
 923         {
 924                 command_print(cmd_ctx, "current target doesn't have an ETM configured");
 925                 return ERROR_OK;
 926         }
 927
 928         if (etm_ctx->capture_driver->status(etm_ctx) & TRACE_RUNNING)
 929         {
 930                 command_print(cmd_ctx, "trace capture running, stop first");
 931                 return ERROR_OK;
 932         }
 933
 934         if (fileio_open(&file, args[0], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 935         {
 936                 command_print(cmd_ctx, "file open error: %s", file.error_str);
 937                 return ERROR_OK;
 938         }
 939
 940         if (file.size % 4)
 941         {
 942                 command_print(cmd_ctx, "size isn't a multiple of 4, no valid trace data");
 943                 return ERROR_OK;
 944         }
 945
 946         if (etm_ctx->trace_depth > 0)
 947         {
 948                 free(etm_ctx->trace_data);
 949         }
 950
 951         //fileio_read(&file, file.size, (u8*)etm_ctx->trace_data, &size_read);
 952         etm_ctx->trace_depth = file.size / 4;
 953         etm_ctx->capture_status = TRACE_COMPLETED;
 954
 955         fileio_close(&file);
 956
 957         return ERROR_OK;
 958 }
 959
 960 int handle_etm_start_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 961 {
 962         target_t *target;
 963         armv4_5_common_t *armv4_5;
 964         arm7_9_common_t *arm7_9;
 965         etm_context_t *etm_ctx;
 966         reg_t *etm_ctrl_reg;
 967
 968         target = get_current_target(cmd_ctx);
 969
 970         if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
 971         {
 972                 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
 973                 return ERROR_OK;
 974         }
 975
 976         if (!(etm_ctx = arm7_9->etm_ctx))
 977         {
 978                 command_print(cmd_ctx, "current target doesn't have an ETM configured");
 979                 return ERROR_OK;
 980         }
 981
 982         /* invalidate old tracing data */
 983         arm7_9->etm_ctx->capture_status = TRACE_IDLE;
 984         if (arm7_9->etm_ctx->trace_depth > 0)
 985         {
 986                 free(arm7_9->etm_ctx->trace_data);
 987         }
 988         arm7_9->etm_ctx->trace_depth = 0;
 989
 990         etm_ctrl_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CTRL];
 991         etm_get_reg(etm_ctrl_reg);
 992
 993         /* Clear programming bit (10), set port selection bit (11) */
 994         buf_set_u32(etm_ctrl_reg->value, 10, 2, 0x2);
 995
 996         etm_store_reg(etm_ctrl_reg);
 997         jtag_execute_queue();
 998
 999         etm_ctx->capture_driver->start_capture(etm_ctx);
1000
1001         return ERROR_OK;
1002 }
1003
1004 int handle_etm_stop_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1005 {
1006         target_t *target;
1007         armv4_5_common_t *armv4_5;
1008         arm7_9_common_t *arm7_9;
1009         etm_context_t *etm_ctx;
1010         reg_t *etm_ctrl_reg;
1011
1012         target = get_current_target(cmd_ctx);
1013
1014         if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1015         {
1016                 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1017                 return ERROR_OK;
1018         }
1019
1020         if (!(etm_ctx = arm7_9->etm_ctx))
1021         {
1022                 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1023                 return ERROR_OK;
1024         }
1025
1026         etm_ctrl_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CTRL];
1027         etm_get_reg(etm_ctrl_reg);
1028
1029         /* Set programming bit (10), clear port selection bit (11) */
1030         buf_set_u32(etm_ctrl_reg->value, 10, 2, 0x1);
1031
1032         etm_store_reg(etm_ctrl_reg);
1033         jtag_execute_queue();
1034
1035         etm_ctx->capture_driver->stop_capture(etm_ctx);
1036
1037         return ERROR_OK;
1038 }
1039
1040 int handle_etm_analyse_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1041 {
1042         target_t *target;
1043         armv4_5_common_t *armv4_5;
1044         arm7_9_common_t *arm7_9;
1045         etm_context_t *etm_ctx;
1046
1047         target = get_current_target(cmd_ctx);
1048
1049         if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1050         {
1051                 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1052                 return ERROR_OK;
1053         }
1054
1055         if (!(etm_ctx = arm7_9->etm_ctx))
1056         {
1057                 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1058                 return ERROR_OK;
1059         }
1060
1061         etmv1_analyse_trace(etm_ctx);
1062
1063         return ERROR_OK;
1064 }
1065
1066 int etm_register_commands(struct command_context_s *cmd_ctx)
1067 {
1068         etm_cmd = register_command(cmd_ctx, NULL, "etm", NULL, COMMAND_ANY, "Embedded Trace Macrocell");
1069
1070         register_command(cmd_ctx, etm_cmd, "config", handle_etm_config_command, COMMAND_CONFIG, NULL);
1071
1072         return ERROR_OK;
1073 }
1074
1075 int etm_register_user_commands(struct command_context_s *cmd_ctx)
1076 {
1077         register_command(cmd_ctx, etm_cmd, "tracemode", handle_etm_tracemode_command,
1078                 COMMAND_EXEC, "configure trace mode <none|data|address|all> <context id bits> <enable|disable cycle accurate>");
1079
1080         register_command(cmd_ctx, etm_cmd, "status", handle_etm_status_command,
1081                 COMMAND_EXEC, "display current target's ETM status");
1082         register_command(cmd_ctx, etm_cmd, "start", handle_etm_start_command,
1083                 COMMAND_EXEC, "start ETM trace collection");
1084         register_command(cmd_ctx, etm_cmd, "stop", handle_etm_stop_command,
1085                 COMMAND_EXEC, "stop ETM trace collection");
1086
1087         register_command(cmd_ctx, etm_cmd, "analyze", handle_etm_stop_command,
1088                 COMMAND_EXEC, "anaylze collected ETM trace");
1089
1090         register_command(cmd_ctx, etm_cmd, "dump", handle_etm_dump_command,
1091                 COMMAND_EXEC, "dump captured trace data <file>");
1092         register_command(cmd_ctx, etm_cmd, "load", handle_etm_load_command,
1093                 COMMAND_EXEC, "load trace data for analysis <file>");
1094
1095         return ERROR_OK;
1096 }