src/jtag/aice/aice_interface.c

   1 /***************************************************************************
   2  *   Copyright (C) 2013 by Andes Technology                                *
   3  *   Hsiangkai Wang <hkwang@andestech.com>                                 *
   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  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  19  ***************************************************************************/
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25 #include <jtag/interface.h>
  26 #include <jtag/commands.h>
  27 #include <transport/transport.h>
  28 #include <target/target.h>
  29 #include <jtag/aice/aice_transport.h>
  30 #include <jtag/drivers/libusb_common.h>
  31 #include "aice_usb.h"
  32
  33 #define AICE_KHZ_TO_SPEED_MAP_SIZE      16
  34 static int aice_khz_to_speed_map[AICE_KHZ_TO_SPEED_MAP_SIZE] = {
  35         30000,
  36         15000,
  37         7500,
  38         3750,
  39         1875,
  40         937,
  41         468,
  42         234,
  43         48000,
  44         24000,
  45         12000,
  46         6000,
  47         3000,
  48         1500,
  49         750,
  50         375,
  51 };
  52
  53 static const struct aice_port *aice_port;
  54 static struct aice_port_param_s param;
  55 static uint32_t retry_times;
  56 static uint32_t count_to_check_dbger;
  57
  58 /***************************************************************************/
  59 /* External interface implementation */
  60 static uint32_t aice_target_id_codes[AICE_MAX_NUM_CORE];
  61 static uint8_t aice_num_of_target_id_codes;
  62
  63 /***************************************************************************/
  64 /* AICE operations */
  65 int aice_init_targets(void)
  66 {
  67         int res;
  68         struct target *target;
  69         struct aice_port_s *aice;
  70
  71         LOG_DEBUG("aice_init_targets");
  72
  73         if (aice_num_of_target_id_codes == 0) {
  74                 res = aice_port->api->idcode(aice_target_id_codes, &aice_num_of_target_id_codes);
  75                 if (res != ERROR_OK) {
  76                         LOG_ERROR("<-- TARGET ERROR! Failed to identify AndesCore "
  77                                         "JTAG Manufacture ID in the JTAG scan chain. "
  78                                         "Failed to access EDM registers. -->");
  79                         return res;
  80                 }
  81         }
  82
  83         for (target = all_targets; target; target = target->next) {
  84                 target->tap->idcode = aice_target_id_codes[target->tap->abs_chain_position];
  85
  86                 unsigned ii, limit = target->tap->expected_ids_cnt;
  87                 int found = 0;
  88
  89                 for (ii = 0; ii < limit; ii++) {
  90                         uint32_t expected = target->tap->expected_ids[ii];
  91
  92                         /* treat "-expected-id 0" as a "don't-warn" wildcard */
  93                         if (!expected || (target->tap->idcode == expected)) {
  94                                 found = 1;
  95                                 break;
  96                         }
  97                 }
  98
  99                 if (found == 0) {
 100                         LOG_ERROR
 101                                 ("aice_init_targets: target not found: idcode: %x ",
 102                                  target->tap->idcode);
 103                         return ERROR_FAIL;
 104                 }
 105
 106                 aice = calloc(1, sizeof(struct aice_port_s));
 107                 aice->port = aice_port;
 108                 aice->coreid = target->tap->abs_chain_position;
 109
 110                 target->tap->priv = aice;
 111                 target->tap->hasidcode = 1;
 112         }
 113
 114         return ERROR_OK;
 115 }
 116
 117 /***************************************************************************/
 118 /* End of External interface implementation */
 119
 120 /* initial aice
 121  * 1. open usb
 122  * 2. get/show version number
 123  * 3. reset
 124  */
 125 static int aice_init(void)
 126 {
 127         if (ERROR_OK != aice_port->api->open(&param)) {
 128                 LOG_ERROR("Cannot find AICE Interface! Please check "
 129                                 "connection and permissions.");
 130                 return ERROR_JTAG_INIT_FAILED;
 131         }
 132
 133         aice_port->api->set_retry_times(retry_times);
 134         aice_port->api->set_count_to_check_dbger(count_to_check_dbger);
 135
 136         LOG_INFO("AICE JTAG Interface ready");
 137
 138         return ERROR_OK;
 139 }
 140
 141 /* cleanup aice resource
 142  * close usb
 143  */
 144 static int aice_quit(void)
 145 {
 146         aice_port->api->close();
 147         return ERROR_OK;
 148 }
 149
 150 static int aice_execute_reset(struct jtag_command *cmd)
 151 {
 152         static int last_trst;
 153         int retval = ERROR_OK;
 154
 155         DEBUG_JTAG_IO("reset trst: %i", cmd->cmd.reset->trst);
 156
 157         if (cmd->cmd.reset->trst != last_trst) {
 158                 if (cmd->cmd.reset->trst)
 159                         retval = aice_port->api->reset();
 160
 161                 last_trst = cmd->cmd.reset->trst;
 162         }
 163
 164         return retval;
 165 }
 166
 167 static int aice_execute_command(struct jtag_command *cmd)
 168 {
 169         int retval;
 170
 171         switch (cmd->type) {
 172                 case JTAG_RESET:
 173                         retval = aice_execute_reset(cmd);
 174                         break;
 175                 default:
 176                         retval = ERROR_OK;
 177                         break;
 178         }
 179         return retval;
 180 }
 181
 182 /* aice has no need to implement jtag execution model
 183 */
 184 static int aice_execute_queue(void)
 185 {
 186         struct jtag_command *cmd = jtag_command_queue;  /* currently processed command */
 187         int retval;
 188
 189         retval = ERROR_OK;
 190
 191         while (cmd) {
 192                 if (aice_execute_command(cmd) != ERROR_OK)
 193                         retval = ERROR_JTAG_QUEUE_FAILED;
 194
 195                 cmd = cmd->next;
 196         }
 197
 198         return retval;
 199 }
 200
 201 /* set jtag frequency(base frequency/frequency divider) to your jtag adapter */
 202 static int aice_speed(int speed)
 203 {
 204         return aice_port->api->set_jtag_clock(speed);
 205 }
 206
 207 /* convert jtag adapter frequency(base frequency/frequency divider) to
 208  * human readable KHz value */
 209 static int aice_speed_div(int speed, int *khz)
 210 {
 211         *khz = aice_khz_to_speed_map[speed];
 212
 213         return ERROR_OK;
 214 }
 215
 216 /* convert human readable KHz value to jtag adapter frequency
 217  * (base frequency/frequency divider) */
 218 static int aice_khz(int khz, int *jtag_speed)
 219 {
 220         int i;
 221         for (i = 0 ; i < AICE_KHZ_TO_SPEED_MAP_SIZE ; i++) {
 222                 if (khz == aice_khz_to_speed_map[i]) {
 223                         if (8 <= i)
 224                                 *jtag_speed = i | AICE_TCK_CONTROL_TCK3048;
 225                         else
 226                                 *jtag_speed = i;
 227                         break;
 228                 }
 229         }
 230
 231         if (i == AICE_KHZ_TO_SPEED_MAP_SIZE) {
 232                 LOG_INFO("No support the jtag clock: %d", khz);
 233                 LOG_INFO("Supported jtag clocks are:");
 234
 235                 for (i = 0 ; i < AICE_KHZ_TO_SPEED_MAP_SIZE ; i++)
 236                         LOG_INFO("* %d", aice_khz_to_speed_map[i]);
 237
 238                 return ERROR_FAIL;
 239         }
 240
 241         return ERROR_OK;
 242 }
 243
 244 /***************************************************************************/
 245 /* Command handlers */
 246 COMMAND_HANDLER(aice_handle_aice_info_command)
 247 {
 248         LOG_DEBUG("aice_handle_aice_info_command");
 249
 250         command_print(CMD_CTX, "Description: %s", param.device_desc);
 251         command_print(CMD_CTX, "Serial number: %s", param.serial);
 252         if (strncmp(aice_port->name, "aice_pipe", 9) == 0)
 253                 command_print(CMD_CTX, "Adapter: %s", param.adapter_name);
 254
 255         return ERROR_OK;
 256 }
 257
 258 COMMAND_HANDLER(aice_handle_aice_port_command)
 259 {
 260         LOG_DEBUG("aice_handle_aice_port_command");
 261
 262         if (CMD_ARGC != 1) {
 263                 LOG_ERROR("Need exactly one argument to 'aice port'");
 264                 return ERROR_COMMAND_SYNTAX_ERROR;
 265         }
 266
 267         for (const struct aice_port *l = aice_port_get_list(); l->name; l++) {
 268                 if (strcmp(l->name, CMD_ARGV[0]) == 0) {
 269                         aice_port = l;
 270                         return ERROR_OK;
 271                 }
 272         }
 273
 274         LOG_ERROR("No AICE port '%s' found", CMD_ARGV[0]);
 275         return ERROR_FAIL;
 276 }
 277
 278 COMMAND_HANDLER(aice_handle_aice_desc_command)
 279 {
 280         LOG_DEBUG("aice_handle_aice_desc_command");
 281
 282         if (CMD_ARGC == 1)
 283                 param.device_desc = strdup(CMD_ARGV[0]);
 284         else
 285                 LOG_ERROR("expected exactly one argument to aice desc <description>");
 286
 287         return ERROR_OK;
 288 }
 289
 290 COMMAND_HANDLER(aice_handle_aice_serial_command)
 291 {
 292         LOG_DEBUG("aice_handle_aice_serial_command");
 293
 294         if (CMD_ARGC == 1)
 295                 param.serial = strdup(CMD_ARGV[0]);
 296         else
 297                 LOG_ERROR("expected exactly one argument to aice serial <serial-number>");
 298
 299         return ERROR_OK;
 300 }
 301
 302 COMMAND_HANDLER(aice_handle_aice_vid_pid_command)
 303 {
 304         LOG_DEBUG("aice_handle_aice_vid_pid_command");
 305
 306         if (CMD_ARGC != 2) {
 307                 LOG_WARNING("ignoring extra IDs in aice vid_pid (maximum is 1 pair)");
 308                 return ERROR_COMMAND_SYNTAX_ERROR;
 309         }
 310
 311         COMMAND_PARSE_NUMBER(u16, CMD_ARGV[0], param.vid);
 312         COMMAND_PARSE_NUMBER(u16, CMD_ARGV[1], param.pid);
 313
 314         return ERROR_OK;
 315 }
 316
 317 COMMAND_HANDLER(aice_handle_aice_adapter_command)
 318 {
 319         LOG_DEBUG("aice_handle_aice_adapter_command");
 320
 321         if (CMD_ARGC == 1)
 322                 param.adapter_name = strdup(CMD_ARGV[0]);
 323         else
 324                 LOG_ERROR("expected exactly one argument to aice adapter <adapter-name>");
 325
 326         return ERROR_OK;
 327 }
 328
 329 COMMAND_HANDLER(aice_handle_aice_retry_times_command)
 330 {
 331         LOG_DEBUG("aice_handle_aice_retry_times_command");
 332
 333         if (CMD_ARGC == 1)
 334                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], retry_times);
 335         else
 336                 LOG_ERROR("expected exactly one argument to aice retry_times <num_of_retry>");
 337
 338         return ERROR_OK;
 339 }
 340
 341 COMMAND_HANDLER(aice_handle_aice_count_to_check_dbger_command)
 342 {
 343         LOG_DEBUG("aice_handle_aice_count_to_check_dbger_command");
 344
 345         if (CMD_ARGC == 1)
 346                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], count_to_check_dbger);
 347         else
 348                 LOG_ERROR("expected exactly one argument to aice count_to_check_dbger "
 349                                 "<count_of_checking>");
 350
 351         return ERROR_OK;
 352 }
 353
 354 COMMAND_HANDLER(aice_handle_aice_custom_srst_script_command)
 355 {
 356         LOG_DEBUG("aice_handle_aice_custom_srst_script_command");
 357
 358         if (CMD_ARGC > 0) {
 359                 aice_port->api->set_custom_srst_script(CMD_ARGV[0]);
 360                 return ERROR_OK;
 361         }
 362
 363         return ERROR_FAIL;
 364 }
 365
 366 COMMAND_HANDLER(aice_handle_aice_custom_trst_script_command)
 367 {
 368         LOG_DEBUG("aice_handle_aice_custom_trst_script_command");
 369
 370         if (CMD_ARGC > 0) {
 371                 aice_port->api->set_custom_trst_script(CMD_ARGV[0]);
 372                 return ERROR_OK;
 373         }
 374
 375         return ERROR_FAIL;
 376 }
 377
 378 COMMAND_HANDLER(aice_handle_aice_custom_restart_script_command)
 379 {
 380         LOG_DEBUG("aice_handle_aice_custom_restart_script_command");
 381
 382         if (CMD_ARGC > 0) {
 383                 aice_port->api->set_custom_restart_script(CMD_ARGV[0]);
 384                 return ERROR_OK;
 385         }
 386
 387         return ERROR_FAIL;
 388 }
 389
 390 COMMAND_HANDLER(aice_handle_aice_reset_command)
 391 {
 392         LOG_DEBUG("aice_handle_aice_reset_command");
 393
 394         return aice_port->api->reset();
 395 }
 396
 397
 398 static const struct command_registration aice_subcommand_handlers[] = {
 399         {
 400                 .name = "info",
 401                 .handler = &aice_handle_aice_info_command,
 402                 .mode = COMMAND_EXEC,
 403                 .help = "show aice info",
 404                 .usage = "aice info",
 405         },
 406         {
 407                 .name = "port",
 408                 .handler = &aice_handle_aice_port_command,
 409                 .mode = COMMAND_CONFIG,
 410                 .help = "set the port of the AICE",
 411                 .usage = "aice port ['aice_pipe'|'aice_usb']",
 412         },
 413         {
 414                 .name = "desc",
 415                 .handler = &aice_handle_aice_desc_command,
 416                 .mode = COMMAND_CONFIG,
 417                 .help = "set the aice device description",
 418                 .usage = "aice desc [desciption string]",
 419         },
 420         {
 421                 .name = "serial",
 422                 .handler = &aice_handle_aice_serial_command,
 423                 .mode = COMMAND_CONFIG,
 424                 .help = "set the serial number of the AICE device",
 425                 .usage = "aice serial [serial string]",
 426         },
 427         {
 428                 .name = "vid_pid",
 429                 .handler = &aice_handle_aice_vid_pid_command,
 430                 .mode = COMMAND_CONFIG,
 431                 .help = "the vendor and product ID of the AICE device",
 432                 .usage = "aice vid_pid (vid pid)*",
 433         },
 434         {
 435                 .name = "adapter",
 436                 .handler = &aice_handle_aice_adapter_command,
 437                 .mode = COMMAND_CONFIG,
 438                 .help = "set the file name of adapter",
 439                 .usage = "aice adapter [adapter name]",
 440         },
 441         {
 442                 .name = "retry_times",
 443                 .handler = &aice_handle_aice_retry_times_command,
 444                 .mode = COMMAND_CONFIG,
 445                 .help = "set retry times as AICE timeout",
 446                 .usage = "aice retry_times num_of_retry",
 447         },
 448         {
 449                 .name = "count_to_check_dbger",
 450                 .handler = &aice_handle_aice_count_to_check_dbger_command,
 451                 .mode = COMMAND_CONFIG,
 452                 .help = "set retry times as checking $DBGER status",
 453                 .usage = "aice count_to_check_dbger count_of_checking",
 454         },
 455         {
 456                 .name = "custom_srst_script",
 457                 .handler = &aice_handle_aice_custom_srst_script_command,
 458                 .mode = COMMAND_CONFIG,
 459                 .usage = "custom_srst_script script_file_name",
 460                 .help = "set custom srst script",
 461         },
 462         {
 463                 .name = "custom_trst_script",
 464                 .handler = &aice_handle_aice_custom_trst_script_command,
 465                 .mode = COMMAND_CONFIG,
 466                 .usage = "custom_trst_script script_file_name",
 467                 .help = "set custom trst script",
 468         },
 469         {
 470                 .name = "custom_restart_script",
 471                 .handler = &aice_handle_aice_custom_restart_script_command,
 472                 .mode = COMMAND_CONFIG,
 473                 .usage = "custom_restart_script script_file_name",
 474                 .help = "set custom restart script",
 475         },
 476         {
 477                 .name = "reset",
 478                 .handler = &aice_handle_aice_reset_command,
 479                 .mode = COMMAND_EXEC,
 480                 .usage = "aice reset",
 481                 .help = "reset AICE",
 482         },
 483         COMMAND_REGISTRATION_DONE
 484 };
 485
 486 static const struct command_registration aice_command_handlers[] = {
 487         {
 488                 .name = "aice",
 489                 .mode = COMMAND_ANY,
 490                 .help = "perform aice management",
 491                 .usage = "aice [subcommand]",
 492                 .chain = aice_subcommand_handlers,
 493         },
 494         COMMAND_REGISTRATION_DONE
 495 };
 496 /***************************************************************************/
 497 /* End of Command handlers */
 498
 499 struct jtag_interface aice_interface = {
 500         .name = "aice",
 501         .commands = aice_command_handlers,
 502         .transports = aice_transports,
 503         .init = aice_init,
 504         .quit = aice_quit,
 505         .execute_queue = aice_execute_queue,
 506         .speed = aice_speed,            /* set interface speed */
 507         .speed_div = aice_speed_div,    /* return readable value */
 508         .khz = aice_khz,                /* convert khz to interface speed value */
 509 };