git.sur5r.net Git - openocd/blob - src/jtag/drivers/usbprog.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Benedikt Sauter                                 *
   3  *   sauter@ixbat.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, see <http://www.gnu.org/licenses/>. *
  17  ***************************************************************************/
  18
  19 /*
  20  * This file is based on Dominic Rath's amt_jtagaccel.c.
  21  *
  22  * usbprog is a free programming adapter. You can easily install
  23  * different firmware versions from an "online pool" over USB.
  24  * The adapter can be used for programming and debugging AVR and ARM
  25  * processors, as USB to RS232 converter, as JTAG interface or as
  26  * simple I/O interface (5 lines).
  27  *
  28  * http://www.embedded-projects.net/usbprog
  29  */
  30
  31 #ifdef HAVE_CONFIG_H
  32 #include "config.h"
  33 #endif
  34
  35 #include <jtag/interface.h>
  36 #include <jtag/commands.h>
  37 #include "usb_common.h"
  38
  39 #define VID 0x1781
  40 #define PID 0x0c63
  41
  42 /* Pins at usbprog */
  43 #define TDO_BIT                 0
  44 #define TDI_BIT                 3
  45 #define TCK_BIT                 2
  46 #define TMS_BIT                 1
  47
  48 static void usbprog_end_state(tap_state_t state);
  49 static void usbprog_state_move(void);
  50 static void usbprog_path_move(struct pathmove_command *cmd);
  51 static void usbprog_runtest(int num_cycles);
  52 static void usbprog_scan(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size);
  53
  54 #define UNKNOWN_COMMAND 0x00
  55 #define PORT_DIRECTION  0x01
  56 #define PORT_SET                0x02
  57 #define PORT_GET                0x03
  58 #define PORT_SETBIT             0x04
  59 #define PORT_GETBIT             0x05
  60 #define WRITE_TDI               0x06
  61 #define READ_TDO                0x07
  62 #define WRITE_AND_READ  0x08
  63 #define WRITE_TMS               0x09
  64 #define WRITE_TMS_CHAIN 0x0A
  65
  66 struct usbprog_jtag {
  67         struct usb_dev_handle *usb_handle;
  68 };
  69
  70 static struct usbprog_jtag *usbprog_jtag_handle;
  71
  72 static struct usbprog_jtag *usbprog_jtag_open(void);
  73 /* static void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag); */
  74 static void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag);
  75 static unsigned char usbprog_jtag_message(struct usbprog_jtag *usbprog_jtag, char *msg, int msglen);
  76
  77 static void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char *buffer, int size);
  78 static void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char *buffer, int size);
  79 static void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char *buffer, int size);
  80 static void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan);
  81
  82 static char tms_chain[64];
  83 static int tms_chain_index;
  84
  85 static void usbprog_jtag_tms_collect(char tms_scan);
  86 static void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag);
  87
  88 static void usbprog_write(int tck, int tms, int tdi);
  89 static void usbprog_reset(int trst, int srst);
  90
  91 static void usbprog_jtag_set_direction(struct usbprog_jtag *usbprog_jtag, unsigned char direction);
  92 static void usbprog_jtag_write_slice(struct usbprog_jtag *usbprog_jtag, unsigned char value);
  93 /* static unsigned char usbprog_jtag_get_port(struct usbprog_jtag *usbprog_jtag); */
  94 static void usbprog_jtag_set_bit(struct usbprog_jtag *usbprog_jtag, int bit, int value);
  95 /* static int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit); */
  96
  97 static int usbprog_execute_queue(void)
  98 {
  99         struct jtag_command *cmd = jtag_command_queue;  /* currently processed command */
 100         int scan_size;
 101         enum scan_type type;
 102         uint8_t *buffer;
 103
 104         while (cmd) {
 105                 switch (cmd->type) {
 106                     case JTAG_RESET:
 107 #ifdef _DEBUG_JTAG_IO_
 108                             LOG_DEBUG("reset trst: %i srst %i",
 109                                 cmd->cmd.reset->trst,
 110                                 cmd->cmd.reset->srst);
 111 #endif
 112                             if (cmd->cmd.reset->trst == 1)
 113                                     tap_set_state(TAP_RESET);
 114                             usbprog_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
 115                             break;
 116                     case JTAG_RUNTEST:
 117 #ifdef _DEBUG_JTAG_IO_
 118                             LOG_DEBUG("runtest %i cycles, end in %i",
 119                                 cmd->cmd.runtest->num_cycles,
 120                                 cmd->cmd.runtest->end_state);
 121 #endif
 122                             usbprog_end_state(cmd->cmd.runtest->end_state);
 123                             usbprog_runtest(cmd->cmd.runtest->num_cycles);
 124                             break;
 125                     case JTAG_TLR_RESET:
 126 #ifdef _DEBUG_JTAG_IO_
 127                             LOG_DEBUG("statemove end in %i", cmd->cmd.statemove->end_state);
 128 #endif
 129                             usbprog_end_state(cmd->cmd.statemove->end_state);
 130                             usbprog_state_move();
 131                             break;
 132                     case JTAG_PATHMOVE:
 133 #ifdef _DEBUG_JTAG_IO_
 134                             LOG_DEBUG("pathmove: %i states, end in %i",
 135                                 cmd->cmd.pathmove->num_states,
 136                                 cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
 137 #endif
 138                             usbprog_path_move(cmd->cmd.pathmove);
 139                             break;
 140                     case JTAG_SCAN:
 141 #ifdef _DEBUG_JTAG_IO_
 142                             LOG_DEBUG("scan end in %i", cmd->cmd.scan->end_state);
 143 #endif
 144                             usbprog_end_state(cmd->cmd.scan->end_state);
 145                             scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
 146                             type = jtag_scan_type(cmd->cmd.scan);
 147                             usbprog_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
 148                             if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
 149                                     return ERROR_JTAG_QUEUE_FAILED;
 150                             if (buffer)
 151                                     free(buffer);
 152                             break;
 153                     case JTAG_SLEEP:
 154 #ifdef _DEBUG_JTAG_IO_
 155                             LOG_DEBUG("sleep %i", cmd->cmd.sleep->us);
 156 #endif
 157                             jtag_sleep(cmd->cmd.sleep->us);
 158                             break;
 159                     default:
 160                             LOG_ERROR("BUG: unknown JTAG command type encountered");
 161                             exit(-1);
 162                 }
 163
 164                 cmd = cmd->next;
 165         }
 166
 167         return ERROR_OK;
 168 }
 169
 170 static int usbprog_init(void)
 171 {
 172         usbprog_jtag_handle = usbprog_jtag_open();
 173
 174         tms_chain_index = 0;
 175         if (usbprog_jtag_handle == 0) {
 176                 LOG_ERROR("Can't find USB JTAG Interface! Please check connection and permissions.");
 177                 return ERROR_JTAG_INIT_FAILED;
 178         }
 179
 180         LOG_INFO("USB JTAG Interface ready!");
 181
 182         usbprog_jtag_init(usbprog_jtag_handle);
 183         usbprog_reset(0, 0);
 184         usbprog_write(0, 0, 0);
 185
 186         return ERROR_OK;
 187 }
 188
 189 static int usbprog_quit(void)
 190 {
 191         return ERROR_OK;
 192 }
 193
 194 /*************** jtag execute commands **********************/
 195 static void usbprog_end_state(tap_state_t state)
 196 {
 197         if (tap_is_state_stable(state))
 198                 tap_set_end_state(state);
 199         else {
 200                 LOG_ERROR("BUG: %i is not a valid end state", state);
 201                 exit(-1);
 202         }
 203 }
 204
 205 static void usbprog_state_move(void)
 206 {
 207         uint8_t tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state());
 208
 209         usbprog_jtag_write_tms(usbprog_jtag_handle, (char)tms_scan);
 210
 211         tap_set_state(tap_get_end_state());
 212 }
 213
 214 static void usbprog_path_move(struct pathmove_command *cmd)
 215 {
 216         int num_states = cmd->num_states;
 217         int state_count;
 218
 219         /* There may be queued transitions, and before following a specified
 220            path, we must flush those queued transitions */
 221         usbprog_jtag_tms_send(usbprog_jtag_handle);
 222
 223         state_count = 0;
 224         while (num_states) {
 225                 if (tap_state_transition(tap_get_state(), false) == cmd->path[state_count]) {
 226                         /* LOG_INFO("1"); */
 227                         usbprog_write(0, 0, 0);
 228                         usbprog_write(1, 0, 0);
 229                 } else if (tap_state_transition(tap_get_state(),
 230                                    true) == cmd->path[state_count]) {
 231                         /* LOG_INFO("2"); */
 232                         usbprog_write(0, 1, 0);
 233                         usbprog_write(1, 1, 0);
 234                 } else {
 235                         LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition",
 236                                 tap_state_name(tap_get_state()),
 237                                 tap_state_name(cmd->path[state_count]));
 238                         exit(-1);
 239                 }
 240
 241                 tap_set_state(cmd->path[state_count]);
 242                 state_count++;
 243                 num_states--;
 244         }
 245
 246         tap_set_end_state(tap_get_state());
 247 }
 248
 249 static void usbprog_runtest(int num_cycles)
 250 {
 251         int i;
 252
 253         /* only do a state_move when we're not already in IDLE */
 254         if (tap_get_state() != TAP_IDLE) {
 255                 usbprog_end_state(TAP_IDLE);
 256                 usbprog_state_move();
 257         }
 258
 259         /* execute num_cycles */
 260         if (num_cycles > 0) {
 261                 usbprog_jtag_tms_send(usbprog_jtag_handle);
 262                 usbprog_write(0, 0, 0);
 263         } else {
 264                 usbprog_jtag_tms_send(usbprog_jtag_handle);
 265                 /* LOG_INFO("NUM CYCLES %i",num_cycles); */
 266         }
 267
 268         for (i = 0; i < num_cycles; i++) {
 269                 usbprog_write(1, 0, 0);
 270                 usbprog_write(0, 0, 0);
 271         }
 272
 273 #ifdef _DEBUG_JTAG_IO_
 274         LOG_DEBUG("runtest: cur_state %s end_state %s", tap_state_name(
 275                         tap_get_state()), tap_state_name(tap_get_end_state()));
 276 #endif
 277
 278         /* finish in end_state */
 279         /*
 280         usbprog_end_state(saved_end_state);
 281         if (tap_get_state() != tap_get_end_state())
 282                 usbprog_state_move();
 283         */
 284 }
 285
 286 static void usbprog_scan(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size)
 287 {
 288         tap_state_t saved_end_state = tap_get_end_state();
 289
 290         if (ir_scan)
 291                 usbprog_end_state(TAP_IRSHIFT);
 292         else
 293                 usbprog_end_state(TAP_DRSHIFT);
 294
 295         /* Only move if we're not already there */
 296         if (tap_get_state() != tap_get_end_state())
 297                 usbprog_state_move();
 298
 299         usbprog_end_state(saved_end_state);
 300
 301         usbprog_jtag_tms_send(usbprog_jtag_handle);
 302
 303         void (*f)(struct usbprog_jtag *usbprog_jtag, char *buffer_local, int size);
 304         switch (type) {
 305                 case SCAN_OUT:
 306                         f = &usbprog_jtag_write_tdi;
 307                         break;
 308                 case SCAN_IN:
 309                         f = &usbprog_jtag_read_tdo;
 310                         break;
 311                 case SCAN_IO:
 312                         f = &usbprog_jtag_write_and_read;
 313                         break;
 314                 default:
 315                         LOG_ERROR("unknown scan type: %i", type);
 316                         exit(-1);
 317         }
 318         f(usbprog_jtag_handle, (char *)buffer, scan_size);
 319
 320         /* The adapter does the transition to PAUSE internally */
 321         if (ir_scan)
 322                 tap_set_state(TAP_IRPAUSE);
 323         else
 324                 tap_set_state(TAP_DRPAUSE);
 325
 326         if (tap_get_state() != tap_get_end_state())
 327                 usbprog_state_move();
 328 }
 329
 330 /*************** jtag wrapper functions *********************/
 331
 332 static void usbprog_write(int tck, int tms, int tdi)
 333 {
 334         unsigned char output_value = 0x00;
 335
 336         if (tms)
 337                 output_value |= (1 << TMS_BIT);
 338         if (tdi)
 339                 output_value |= (1 << TDI_BIT);
 340         if (tck)
 341                 output_value |= (1 << TCK_BIT);
 342
 343         usbprog_jtag_write_slice(usbprog_jtag_handle, output_value);
 344 }
 345
 346 /* (1) assert or (0) deassert reset lines */
 347 static void usbprog_reset(int trst, int srst)
 348 {
 349         LOG_DEBUG("trst: %i, srst: %i", trst, srst);
 350
 351         if (trst)
 352                 usbprog_jtag_set_bit(usbprog_jtag_handle, 5, 0);
 353         else
 354                 usbprog_jtag_set_bit(usbprog_jtag_handle, 5, 1);
 355
 356         if (srst)
 357                 usbprog_jtag_set_bit(usbprog_jtag_handle, 4, 0);
 358         else
 359                 usbprog_jtag_set_bit(usbprog_jtag_handle, 4, 1);
 360 }
 361
 362 /*************** jtag lowlevel functions ********************/
 363
 364 struct usb_bus *busses;
 365
 366 struct usbprog_jtag *usbprog_jtag_open(void)
 367 {
 368         usb_set_debug(10);
 369         usb_init();
 370
 371         const uint16_t vids[] = { VID, 0 };
 372         const uint16_t pids[] = { PID, 0 };
 373         struct usb_dev_handle *dev;
 374         if (jtag_usb_open(vids, pids, &dev) != ERROR_OK)
 375                 return NULL;
 376
 377         struct usbprog_jtag *tmp = malloc(sizeof(struct usbprog_jtag));
 378         tmp->usb_handle = dev;
 379
 380         usb_set_configuration(dev, 1);
 381         usb_claim_interface(dev, 0);
 382         usb_set_altinterface(dev, 0);
 383
 384         return tmp;
 385 }
 386
 387 #if 0
 388 static void usbprog_jtag_close(struct usbprog_jtag *usbprog_jtag)
 389 {
 390         usb_close(usbprog_jtag->usb_handle);
 391         free(usbprog_jtag);
 392 }
 393 #endif
 394
 395 static unsigned char usbprog_jtag_message(struct usbprog_jtag *usbprog_jtag, char *msg, int msglen)
 396 {
 397         int res = usb_bulk_write(usbprog_jtag->usb_handle, 3, msg, msglen, 100);
 398         if ((msg[0] == 2) || (msg[0] == 1) || (msg[0] == 4) || (msg[0] == 0) || \
 399             (msg[0] == 6) || (msg[0] == 0x0A) || (msg[0] == 9))
 400                 return 1;
 401         if (res == msglen) {
 402                 /* LOG_INFO("HALLLLOOO %i",(int)msg[0]); */
 403                 res = usb_bulk_read(usbprog_jtag->usb_handle, 0x82, msg, 2, 100);
 404                 if (res > 0)
 405                         return (unsigned char)msg[1];
 406                 else
 407                         return -1;
 408         } else
 409                 return -1;
 410         return 0;
 411 }
 412
 413 static void usbprog_jtag_init(struct usbprog_jtag *usbprog_jtag)
 414 {
 415         usbprog_jtag_set_direction(usbprog_jtag, 0xFE);
 416 }
 417
 418 static void usbprog_jtag_write_and_read(struct usbprog_jtag *usbprog_jtag, char *buffer, int size)
 419 {
 420         char tmp[64];   /* fastes packet size for usb controller */
 421         int send_bits, bufindex = 0, fillindex = 0, i, loops;
 422
 423         char swap;
 424         /* 61 byte can be transfered (488 bit) */
 425
 426         while (size > 0) {
 427                 if (size > 488) {
 428                         send_bits = 488;
 429                         size = size - 488;
 430                         loops = 61;
 431                 } else {
 432                         send_bits = size;
 433                         loops = size / 8;
 434                         loops++;
 435                         size = 0;
 436                 }
 437                 tmp[0] = WRITE_AND_READ;
 438                 tmp[1] = (char)(send_bits >> 8);        /* high */
 439                 tmp[2] = (char)(send_bits);                     /* low */
 440
 441                 for (i = 0; i < loops; i++) {
 442                         tmp[3 + i] = buffer[bufindex];
 443                         bufindex++;
 444                 }
 445
 446                 if (usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, 64, 1000) == 64) {
 447                         /* LOG_INFO("HALLLLOOO2 %i",(int)tmp[0]); */
 448                         usleep(1);
 449                         int timeout = 0;
 450                         while (usb_bulk_read(usbprog_jtag->usb_handle, 0x82, tmp, 64, 1000) < 1) {
 451                                 timeout++;
 452                                 if (timeout > 10)
 453                                         break;
 454                         }
 455
 456                         for (i = 0; i < loops; i++) {
 457                                 swap = tmp[3 + i];
 458                                 buffer[fillindex++] = swap;
 459                         }
 460                 }
 461         }
 462 }
 463
 464 static void usbprog_jtag_read_tdo(struct usbprog_jtag *usbprog_jtag, char *buffer, int size)
 465 {
 466         char tmp[64];   /* fastes packet size for usb controller */
 467         int send_bits, fillindex = 0, i, loops;
 468
 469         char swap;
 470         /* 61 byte can be transfered (488 bit) */
 471
 472         while (size > 0) {
 473                 if (size > 488) {
 474                         send_bits = 488;
 475                         size = size - 488;
 476                         loops = 61;
 477                 } else {
 478                         send_bits = size;
 479                         loops = size / 8;
 480                         loops++;
 481                         size = 0;
 482                 }
 483                 tmp[0] = WRITE_AND_READ;
 484                 tmp[1] = (char)(send_bits >> 8);        /* high */
 485                 tmp[2] = (char)(send_bits);                     /* low */
 486
 487                 usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, 3, 1000);
 488
 489                 /* LOG_INFO("HALLLLOOO3 %i",(int)tmp[0]); */
 490                 int timeout = 0;
 491                 usleep(1);
 492                 while (usb_bulk_read(usbprog_jtag->usb_handle, 0x82, tmp, 64, 10) < 1) {
 493                         timeout++;
 494                         if (timeout > 10)
 495                                 break;
 496                 }
 497
 498                 for (i = 0; i < loops; i++) {
 499                         swap = tmp[3 + i];
 500                         buffer[fillindex++] = swap;
 501                 }
 502         }
 503 }
 504
 505 static void usbprog_jtag_write_tdi(struct usbprog_jtag *usbprog_jtag, char *buffer, int size)
 506 {
 507         char tmp[64];   /* fastes packet size for usb controller */
 508         int send_bits, bufindex = 0, i, loops;
 509
 510         /* 61 byte can be transfered (488 bit) */
 511         while (size > 0) {
 512                 if (size > 488) {
 513                         send_bits = 488;
 514                         size = size - 488;
 515                         loops = 61;
 516                 } else {
 517                         send_bits = size;
 518                         loops = size/8;
 519                         /* if (loops == 0) */
 520                         loops++;
 521                         size = 0;
 522                 }
 523                 tmp[0] = WRITE_TDI;
 524                 tmp[1] = (char)(send_bits >> 8);        /* high */
 525                 tmp[2] = (char)(send_bits);                     /* low */
 526
 527                 for (i = 0; i < loops; i++) {
 528                         tmp[3 + i] = buffer[bufindex];
 529                         bufindex++;
 530                 }
 531                 usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, 64, 1000);
 532         }
 533 }
 534
 535 static void usbprog_jtag_write_tms(struct usbprog_jtag *usbprog_jtag, char tms_scan)
 536 {
 537         usbprog_jtag_tms_collect(tms_scan);
 538 }
 539
 540 static void usbprog_jtag_set_direction(struct usbprog_jtag *usbprog_jtag, unsigned char direction)
 541 {
 542         char tmp[2];
 543         tmp[0] = PORT_DIRECTION;
 544         tmp[1] = (char)direction;
 545         usbprog_jtag_message(usbprog_jtag, tmp, 2);
 546 }
 547
 548 static void usbprog_jtag_write_slice(struct usbprog_jtag *usbprog_jtag, unsigned char value)
 549 {
 550         char tmp[2];
 551         tmp[0] = PORT_SET;
 552         tmp[1] = (char)value;
 553         usbprog_jtag_message(usbprog_jtag, tmp, 2);
 554 }
 555
 556 #if 0
 557 static unsigned char usbprog_jtag_get_port(struct usbprog_jtag *usbprog_jtag)
 558 {
 559         char tmp[2];
 560         tmp[0] = PORT_GET;
 561         tmp[1] = 0x00;
 562         return usbprog_jtag_message(usbprog_jtag, tmp, 2);
 563 }
 564 #endif
 565
 566 static void usbprog_jtag_set_bit(struct usbprog_jtag *usbprog_jtag, int bit, int value)
 567 {
 568         char tmp[3];
 569         tmp[0] = PORT_SETBIT;
 570         tmp[1] = (char)bit;
 571         if (value == 1)
 572                 tmp[2] = 0x01;
 573         else
 574                 tmp[2] = 0x00;
 575         usbprog_jtag_message(usbprog_jtag, tmp, 3);
 576 }
 577
 578 #if 0
 579 static int usbprog_jtag_get_bit(struct usbprog_jtag *usbprog_jtag, int bit)
 580 {
 581         char tmp[2];
 582         tmp[0] = PORT_GETBIT;
 583         tmp[1] = (char)bit;
 584
 585         if (usbprog_jtag_message(usbprog_jtag, tmp, 2) > 0)
 586                 return 1;
 587         else
 588                 return 0;
 589 }
 590 #endif
 591
 592 static void usbprog_jtag_tms_collect(char tms_scan)
 593 {
 594         tms_chain[tms_chain_index] = tms_scan;
 595         tms_chain_index++;
 596 }
 597
 598 static void usbprog_jtag_tms_send(struct usbprog_jtag *usbprog_jtag)
 599 {
 600         int i;
 601         /* LOG_INFO("TMS SEND"); */
 602         if (tms_chain_index > 0) {
 603                 char tmp[tms_chain_index + 2];
 604                 tmp[0] = WRITE_TMS_CHAIN;
 605                 tmp[1] = (char)(tms_chain_index);
 606                 for (i = 0; i < tms_chain_index + 1; i++)
 607                         tmp[2 + i] = tms_chain[i];
 608                 usb_bulk_write(usbprog_jtag->usb_handle, 3, tmp, tms_chain_index + 2, 1000);
 609                 tms_chain_index = 0;
 610         }
 611 }
 612
 613 struct jtag_interface usbprog_interface = {
 614         .name = "usbprog",
 615
 616         .execute_queue = usbprog_execute_queue,
 617         .init = usbprog_init,
 618         .quit = usbprog_quit
 619 };