hardware/openbench-logic-sniffer/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "protocol.h"
  21 #include <libserialport.h>
  22
  23 #define SERIALCOMM "115200/8n1"
  24
  25 static const int32_t hwopts[] = {
  26         SR_CONF_CONN,
  27         SR_CONF_SERIALCOMM,
  28 };
  29
  30 static const int32_t hwcaps[] = {
  31         SR_CONF_LOGIC_ANALYZER,
  32         SR_CONF_SAMPLERATE,
  33         SR_CONF_TRIGGER_TYPE,
  34         SR_CONF_CAPTURE_RATIO,
  35         SR_CONF_LIMIT_SAMPLES,
  36         SR_CONF_EXTERNAL_CLOCK,
  37         SR_CONF_PATTERN_MODE,
  38         SR_CONF_SWAP,
  39         SR_CONF_RLE,
  40 };
  41
  42 #define STR_PATTERN_NONE     "None"
  43 #define STR_PATTERN_EXTERNAL "External"
  44 #define STR_PATTERN_INTERNAL "Internal"
  45
  46 /* Supported methods of test pattern outputs */
  47 enum {
  48         /**
  49          * Capture pins 31:16 (unbuffered wing) output a test pattern
  50          * that can captured on pins 0:15.
  51          */
  52         PATTERN_EXTERNAL,
  53
  54         /** Route test pattern internally to capture buffer. */
  55         PATTERN_INTERNAL,
  56 };
  57
  58 static const char *patterns[] = {
  59         STR_PATTERN_NONE,
  60         STR_PATTERN_EXTERNAL,
  61         STR_PATTERN_INTERNAL,
  62 };
  63
  64 /* Probes are numbered 0-31 (on the PCB silkscreen). */
  65 SR_PRIV const char *ols_probe_names[NUM_PROBES + 1] = {
  66         "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12",
  67         "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23",
  68         "24", "25", "26", "27", "28", "29", "30", "31",
  69         NULL,
  70 };
  71
  72 /* Default supported samplerates, can be overridden by device metadata. */
  73 static const uint64_t samplerates[] = {
  74         SR_HZ(10),
  75         SR_MHZ(200),
  76         SR_HZ(1),
  77 };
  78
  79 SR_PRIV struct sr_dev_driver ols_driver_info;
  80 static struct sr_dev_driver *di = &ols_driver_info;
  81
  82 static int dev_clear(void)
  83 {
  84         return std_dev_clear(di, NULL);
  85 }
  86
  87 static int init(struct sr_context *sr_ctx)
  88 {
  89         return std_init(sr_ctx, di, LOG_PREFIX);
  90 }
  91
  92 static GSList *scan(GSList *options)
  93 {
  94         struct sr_config *src;
  95         struct sr_dev_inst *sdi;
  96         struct drv_context *drvc;
  97         struct dev_context *devc;
  98         struct sr_probe *probe;
  99         struct sr_serial_dev_inst *serial;
 100         GPollFD probefd;
 101         GSList *l, *devices;
 102         int ret, i;
 103         const char *conn, *serialcomm;
 104         char buf[8];
 105
 106         drvc = di->priv;
 107
 108         devices = NULL;
 109
 110         conn = serialcomm = NULL;
 111         for (l = options; l; l = l->next) {
 112                 src = l->data;
 113                 switch (src->key) {
 114                 case SR_CONF_CONN:
 115                         conn = g_variant_get_string(src->data, NULL);
 116                         break;
 117                 case SR_CONF_SERIALCOMM:
 118                         serialcomm = g_variant_get_string(src->data, NULL);
 119                         break;
 120                 }
 121         }
 122         if (!conn)
 123                 return NULL;
 124
 125         if (serialcomm == NULL)
 126                 serialcomm = SERIALCOMM;
 127
 128         if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
 129                 return NULL;
 130
 131         /* The discovery procedure is like this: first send the Reset
 132          * command (0x00) 5 times, since the device could be anywhere
 133          * in a 5-byte command. Then send the ID command (0x02).
 134          * If the device responds with 4 bytes ("OLS1" or "SLA1"), we
 135          * have a match.
 136          */
 137         sr_info("Probing %s.", conn);
 138         if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
 139                 return NULL;
 140
 141         ret = SR_OK;
 142         for (i = 0; i < 5; i++) {
 143                 if ((ret = send_shortcommand(serial, CMD_RESET)) != SR_OK) {
 144                         sr_err("Port %s is not writable.", conn);
 145                         break;
 146                 }
 147         }
 148         if (ret != SR_OK) {
 149                 serial_close(serial);
 150                 sr_err("Could not use port %s. Quitting.", conn);
 151                 return NULL;
 152         }
 153         send_shortcommand(serial, CMD_ID);
 154
 155         /* Wait 10ms for a response. */
 156         g_usleep(10000);
 157
 158         sp_get_port_handle(serial->data, &probefd.fd);
 159         probefd.events = G_IO_IN;
 160         g_poll(&probefd, 1, 1);
 161
 162         if (probefd.revents != G_IO_IN)
 163                 return NULL;
 164         if (serial_read_blocking(serial, buf, 4) != 4)
 165                 return NULL;
 166         if (strncmp(buf, "1SLO", 4) && strncmp(buf, "1ALS", 4))
 167                 return NULL;
 168
 169         /* Definitely using the OLS protocol, check if it supports
 170          * the metadata command.
 171          */
 172         send_shortcommand(serial, CMD_METADATA);
 173         if (g_poll(&probefd, 1, 10) > 0) {
 174                 /* Got metadata. */
 175                 sdi = get_metadata(serial);
 176                 sdi->index = 0;
 177                 devc = sdi->priv;
 178         } else {
 179                 /* Not an OLS -- some other board that uses the sump protocol. */
 180                 sr_info("Device does not support metadata.");
 181                 sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
 182                                 "Sump", "Logic Analyzer", "v1.0");
 183                 sdi->driver = di;
 184                 for (i = 0; i < 32; i++) {
 185                         if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE,
 186                                         ols_probe_names[i])))
 187                                 return 0;
 188                         sdi->probes = g_slist_append(sdi->probes, probe);
 189                 }
 190                 devc = ols_dev_new();
 191                 sdi->priv = devc;
 192         }
 193         /* Configure samplerate and divider. */
 194         if (ols_set_samplerate(sdi, DEFAULT_SAMPLERATE) != SR_OK)
 195                 sr_dbg("Failed to set default samplerate (%"PRIu64").",
 196                                 DEFAULT_SAMPLERATE);
 197         /* Clear trigger masks, values and stages. */
 198         ols_configure_probes(sdi);
 199         sdi->inst_type = SR_INST_SERIAL;
 200         sdi->conn = serial;
 201
 202         drvc->instances = g_slist_append(drvc->instances, sdi);
 203         devices = g_slist_append(devices, sdi);
 204
 205         serial_close(serial);
 206
 207         return devices;
 208 }
 209
 210 static GSList *dev_list(void)
 211 {
 212         return ((struct drv_context *)(di->priv))->instances;
 213 }
 214
 215 static int cleanup(void)
 216 {
 217         return dev_clear();
 218 }
 219
 220 static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
 221                 const struct sr_probe_group *probe_group)
 222 {
 223         struct dev_context *devc;
 224
 225         (void)probe_group;
 226
 227         if (!sdi)
 228                 return SR_ERR_ARG;
 229
 230         devc = sdi->priv;
 231         switch (id) {
 232         case SR_CONF_SAMPLERATE:
 233                 *data = g_variant_new_uint64(devc->cur_samplerate);
 234                 break;
 235         case SR_CONF_CAPTURE_RATIO:
 236                 *data = g_variant_new_uint64(devc->capture_ratio);
 237                 break;
 238         case SR_CONF_LIMIT_SAMPLES:
 239                 *data = g_variant_new_uint64(devc->limit_samples);
 240                 break;
 241         case SR_CONF_PATTERN_MODE:
 242                 if (devc->flag_reg & FLAG_EXTERNAL_TEST_MODE)
 243                         *data = g_variant_new_string(STR_PATTERN_EXTERNAL);
 244                 else if (devc->flag_reg & FLAG_INTERNAL_TEST_MODE)
 245                         *data = g_variant_new_string(STR_PATTERN_INTERNAL);
 246                 else
 247                         *data = g_variant_new_string(STR_PATTERN_NONE);
 248                 break;
 249         case SR_CONF_RLE:
 250                 *data = g_variant_new_boolean(devc->flag_reg & FLAG_RLE ? TRUE : FALSE);
 251                 break;
 252         default:
 253                 return SR_ERR_NA;
 254         }
 255
 256         return SR_OK;
 257 }
 258
 259 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
 260                 const struct sr_probe_group *probe_group)
 261 {
 262         struct dev_context *devc;
 263         uint16_t flag;
 264         uint64_t tmp_u64;
 265         int ret;
 266         const char *stropt;
 267
 268         (void)probe_group;
 269
 270         if (sdi->status != SR_ST_ACTIVE)
 271                 return SR_ERR_DEV_CLOSED;
 272
 273         devc = sdi->priv;
 274
 275         switch (id) {
 276         case SR_CONF_SAMPLERATE:
 277                 tmp_u64 = g_variant_get_uint64(data);
 278                 if (tmp_u64 < samplerates[0] || tmp_u64 > samplerates[1])
 279                         return SR_ERR_SAMPLERATE;
 280                 ret = ols_set_samplerate(sdi, g_variant_get_uint64(data));
 281                 break;
 282         case SR_CONF_LIMIT_SAMPLES:
 283                 tmp_u64 = g_variant_get_uint64(data);
 284                 if (tmp_u64 < MIN_NUM_SAMPLES)
 285                         return SR_ERR;
 286                 devc->limit_samples = tmp_u64;
 287                 ret = SR_OK;
 288                 break;
 289         case SR_CONF_CAPTURE_RATIO:
 290                 devc->capture_ratio = g_variant_get_uint64(data);
 291                 if (devc->capture_ratio < 0 || devc->capture_ratio > 100) {
 292                         devc->capture_ratio = 0;
 293                         ret = SR_ERR;
 294                 } else
 295                         ret = SR_OK;
 296                 break;
 297         case SR_CONF_EXTERNAL_CLOCK:
 298                 if (g_variant_get_boolean(data)) {
 299                         sr_info("Enabling external clock.");
 300                         devc->flag_reg |= FLAG_CLOCK_EXTERNAL;
 301                 } else {
 302                         sr_info("Disabled external clock.");
 303                         devc->flag_reg &= ~FLAG_CLOCK_EXTERNAL;
 304                 }
 305                 ret = SR_OK;
 306                 break;
 307         case SR_CONF_PATTERN_MODE:
 308                 stropt = g_variant_get_string(data, NULL);
 309                 ret = SR_OK;
 310                 flag = 0xffff;
 311                 if (!strcmp(stropt, STR_PATTERN_NONE)) {
 312                         sr_info("Disabling test modes.");
 313                         flag = 0x0000;
 314                 }else if (!strcmp(stropt, STR_PATTERN_INTERNAL)) {
 315                         sr_info("Enabling internal test mode.");
 316                         flag = FLAG_INTERNAL_TEST_MODE;
 317                 } else if (!strcmp(stropt, STR_PATTERN_EXTERNAL)) {
 318                         sr_info("Enabling external test mode.");
 319                         flag = FLAG_EXTERNAL_TEST_MODE;
 320                 } else {
 321                         ret = SR_ERR;
 322                 }
 323                 if (flag != 0xffff) {
 324                         devc->flag_reg &= ~(FLAG_INTERNAL_TEST_MODE | FLAG_EXTERNAL_TEST_MODE);
 325                         devc->flag_reg |= flag;
 326                 }
 327                 break;
 328         case SR_CONF_SWAP:
 329                 if (g_variant_get_boolean(data)) {
 330                         sr_info("Enabling channel swapping.");
 331                         devc->flag_reg |= FLAG_SWAP_PROBES;
 332                 } else {
 333                         sr_info("Disabling channel swapping.");
 334                         devc->flag_reg &= ~FLAG_SWAP_PROBES;
 335                 }
 336                 ret = SR_OK;
 337                 break;
 338
 339         case SR_CONF_RLE:
 340                 if (g_variant_get_boolean(data)) {
 341                         sr_info("Enabling RLE.");
 342                         devc->flag_reg |= FLAG_RLE;
 343                 } else {
 344                         sr_info("Disabling RLE.");
 345                         devc->flag_reg &= ~FLAG_RLE;
 346                 }
 347                 ret = SR_OK;
 348                 break;
 349         default:
 350                 ret = SR_ERR_NA;
 351         }
 352
 353         return ret;
 354 }
 355
 356 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
 357                 const struct sr_probe_group *probe_group)
 358 {
 359         struct dev_context *devc;
 360         GVariant *gvar, *grange[2];
 361         GVariantBuilder gvb;
 362         int num_channels, i;
 363
 364         (void)probe_group;
 365
 366         switch (key) {
 367         case SR_CONF_SCAN_OPTIONS:
 368                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 369                                 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
 370                 break;
 371         case SR_CONF_DEVICE_OPTIONS:
 372                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
 373                                 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
 374                 break;
 375         case SR_CONF_SAMPLERATE:
 376                 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
 377                 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates,
 378                                 ARRAY_SIZE(samplerates), sizeof(uint64_t));
 379                 g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
 380                 *data = g_variant_builder_end(&gvb);
 381                 break;
 382         case SR_CONF_TRIGGER_TYPE:
 383                 *data = g_variant_new_string(TRIGGER_TYPE);
 384                 break;
 385         case SR_CONF_PATTERN_MODE:
 386                 *data = g_variant_new_strv(patterns, ARRAY_SIZE(patterns));
 387                 break;
 388         case SR_CONF_LIMIT_SAMPLES:
 389                 if (!sdi)
 390                         return SR_ERR_ARG;
 391                 devc = sdi->priv;
 392                 if (devc->flag_reg & FLAG_RLE)
 393                         return SR_ERR_NA;
 394                 if (devc->max_samples == 0)
 395                         /* Device didn't specify sample memory size in metadata. */
 396                         return SR_ERR_NA;
 397                 /*
 398                  * Channel groups are turned off if no probes in that group are
 399                  * enabled, making more room for samples for the enabled group.
 400                 */
 401                 ols_configure_probes(sdi);
 402                 num_channels = 0;
 403                 for (i = 0; i < 4; i++) {
 404                         if (devc->probe_mask & (0xff << (i * 8)))
 405                                 num_channels++;
 406                 }
 407                 grange[0] = g_variant_new_uint64(MIN_NUM_SAMPLES);
 408                 grange[1] = g_variant_new_uint64(devc->max_samples / num_channels);
 409                 *data = g_variant_new_tuple(grange, 2);
 410                 break;
 411         default:
 412                 return SR_ERR_NA;
 413         }
 414
 415         return SR_OK;
 416 }
 417
 418 static int set_trigger(const struct sr_dev_inst *sdi, int stage)
 419 {
 420         struct dev_context *devc;
 421         struct sr_serial_dev_inst *serial;
 422         uint8_t cmd, arg[4];
 423
 424         devc = sdi->priv;
 425         serial = sdi->conn;
 426
 427         cmd = CMD_SET_TRIGGER_MASK + stage * 4;
 428         arg[0] = devc->trigger_mask[stage] & 0xff;
 429         arg[1] = (devc->trigger_mask[stage] >> 8) & 0xff;
 430         arg[2] = (devc->trigger_mask[stage] >> 16) & 0xff;
 431         arg[3] = (devc->trigger_mask[stage] >> 24) & 0xff;
 432         if (send_longcommand(serial, cmd, arg) != SR_OK)
 433                 return SR_ERR;
 434
 435         cmd = CMD_SET_TRIGGER_VALUE + stage * 4;
 436         arg[0] = devc->trigger_value[stage] & 0xff;
 437         arg[1] = (devc->trigger_value[stage] >> 8) & 0xff;
 438         arg[2] = (devc->trigger_value[stage] >> 16) & 0xff;
 439         arg[3] = (devc->trigger_value[stage] >> 24) & 0xff;
 440         if (send_longcommand(serial, cmd, arg) != SR_OK)
 441                 return SR_ERR;
 442
 443         cmd = CMD_SET_TRIGGER_CONFIG + stage * 4;
 444         arg[0] = arg[1] = arg[3] = 0x00;
 445         arg[2] = stage;
 446         if (stage == devc->num_stages)
 447                 /* Last stage, fire when this one matches. */
 448                 arg[3] |= TRIGGER_START;
 449         if (send_longcommand(serial, cmd, arg) != SR_OK)
 450                 return SR_ERR;
 451
 452         return SR_OK;
 453 }
 454
 455 static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 456                 void *cb_data)
 457 {
 458         struct dev_context *devc;
 459         struct sr_serial_dev_inst *serial;
 460         uint16_t samplecount, readcount, delaycount;
 461         uint8_t changrp_mask, arg[4];
 462         int num_channels;
 463         int ret, i;
 464
 465         if (sdi->status != SR_ST_ACTIVE)
 466                 return SR_ERR_DEV_CLOSED;
 467
 468         devc = sdi->priv;
 469         serial = sdi->conn;
 470
 471         if (ols_configure_probes(sdi) != SR_OK) {
 472                 sr_err("Failed to configure probes.");
 473                 return SR_ERR;
 474         }
 475
 476         /*
 477          * Enable/disable channel groups in the flag register according to the
 478          * probe mask. Calculate this here, because num_channels is needed
 479          * to limit readcount.
 480          */
 481         changrp_mask = 0;
 482         num_channels = 0;
 483         for (i = 0; i < 4; i++) {
 484                 if (devc->probe_mask & (0xff << (i * 8))) {
 485                         changrp_mask |= (1 << i);
 486                         num_channels++;
 487                 }
 488         }
 489
 490         /*
 491          * Limit readcount to prevent reading past the end of the hardware
 492          * buffer.
 493          */
 494         samplecount = MIN(devc->max_samples / num_channels, devc->limit_samples);
 495         readcount = samplecount / 4;
 496
 497         /* Rather read too many samples than too few. */
 498         if (samplecount % 4 != 0)
 499                 readcount++;
 500
 501         /* Basic triggers. */
 502         if (devc->trigger_mask[0] != 0x00000000) {
 503                 /* At least one probe has a trigger on it. */
 504                 delaycount = readcount * (1 - devc->capture_ratio / 100.0);
 505                 devc->trigger_at = (readcount - delaycount) * 4 - devc->num_stages;
 506                 for (i = 0; i <= devc->num_stages; i++) {
 507                         sr_dbg("Setting stage %d trigger.", i);
 508                         if ((ret = set_trigger(sdi, i)) != SR_OK)
 509                                 return ret;
 510                 }
 511         } else {
 512                 /* No triggers configured, force trigger on first stage. */
 513                 sr_dbg("Forcing trigger at stage 0.");
 514                 if ((ret = set_trigger(sdi, 0)) != SR_OK)
 515                         return ret;
 516                 delaycount = readcount;
 517         }
 518
 519         /* Samplerate. */
 520         sr_dbg("Setting samplerate to %" PRIu64 "Hz (divider %u)",
 521                         devc->cur_samplerate, devc->cur_samplerate_divider);
 522         arg[0] = devc->cur_samplerate_divider & 0xff;
 523         arg[1] = (devc->cur_samplerate_divider & 0xff00) >> 8;
 524         arg[2] = (devc->cur_samplerate_divider & 0xff0000) >> 16;
 525         arg[3] = 0x00;
 526         if (send_longcommand(serial, CMD_SET_DIVIDER, arg) != SR_OK)
 527                 return SR_ERR;
 528
 529         /* Send sample limit and pre/post-trigger capture ratio. */
 530         sr_dbg("Setting sample limit %d, trigger point at %d",
 531                         (readcount - 1) * 4, (delaycount - 1) * 4);
 532         arg[0] = ((readcount - 1) & 0xff);
 533         arg[1] = ((readcount - 1) & 0xff00) >> 8;
 534         arg[2] = ((delaycount - 1) & 0xff);
 535         arg[3] = ((delaycount - 1) & 0xff00) >> 8;
 536         if (send_longcommand(serial, CMD_CAPTURE_SIZE, arg) != SR_OK)
 537                 return SR_ERR;
 538
 539         /* Flag register. */
 540         sr_dbg("Setting intpat %s, extpat %s, RLE %s, noise_filter %s, demux %s",
 541                         devc->flag_reg & FLAG_INTERNAL_TEST_MODE ? "on": "off",
 542                         devc->flag_reg & FLAG_EXTERNAL_TEST_MODE ? "on": "off",
 543                         devc->flag_reg & FLAG_RLE ? "on" : "off",
 544                         devc->flag_reg & FLAG_FILTER ? "on": "off",
 545                         devc->flag_reg & FLAG_DEMUX ? "on" : "off");
 546         /* 1 means "disable channel". */
 547         devc->flag_reg |= ~(changrp_mask << 2) & 0x3c;
 548         arg[0] = devc->flag_reg & 0xff;
 549         arg[1] = devc->flag_reg >> 8;
 550         arg[2] = arg[3] = 0x00;
 551         if (send_longcommand(serial, CMD_SET_FLAGS, arg) != SR_OK)
 552                 return SR_ERR;
 553
 554         /* Start acquisition on the device. */
 555         if (send_shortcommand(serial, CMD_RUN) != SR_OK)
 556                 return SR_ERR;
 557
 558         /* Reset all operational states. */
 559         devc->rle_count = devc->num_transfers = 0;
 560         devc->num_samples = devc->num_bytes = 0;
 561         devc->cnt_bytes = devc->cnt_samples = devc->cnt_samples_rle = 0;
 562         memset(devc->sample, 0, 4);
 563
 564         /* Send header packet to the session bus. */
 565         std_session_send_df_header(cb_data, LOG_PREFIX);
 566
 567         serial_source_add(serial, G_IO_IN, -1, ols_receive_data, cb_data);
 568
 569         return SR_OK;
 570 }
 571
 572 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 573 {
 574         (void)cb_data;
 575
 576         abort_acquisition(sdi);
 577
 578         return SR_OK;
 579 }
 580
 581 SR_PRIV struct sr_dev_driver ols_driver_info = {
 582         .name = "ols",
 583         .longname = "Openbench Logic Sniffer",
 584         .api_version = 1,
 585         .init = init,
 586         .cleanup = cleanup,
 587         .scan = scan,
 588         .dev_list = dev_list,
 589         .dev_clear = dev_clear,
 590         .config_get = config_get,
 591         .config_set = config_set,
 592         .config_list = config_list,
 593         .dev_open = std_serial_dev_open,
 594         .dev_close = std_serial_dev_close,
 595         .dev_acquisition_start = dev_acquisition_start,
 596         .dev_acquisition_stop = dev_acquisition_stop,
 597         .priv = NULL,
 598 };