src/hardware/arachnid-labs-re-load-pro/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2015-2016 Uwe Hermann <uwe@hermann-uwe.de>
   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 2 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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <config.h>
  22 #include <string.h>
  23 #include "protocol.h"
  24
  25 #define SERIALCOMM "115200/8n1"
  26
  27 #define CMD_VERSION "version\r\n"
  28 #define CMD_MONITOR "monitor 200\r\n"
  29
  30 static const uint32_t scanopts[] = {
  31         SR_CONF_CONN,
  32         SR_CONF_SERIALCOMM,
  33 };
  34
  35 static const uint32_t drvopts[] = {
  36         SR_CONF_ELECTRONIC_LOAD,
  37 };
  38
  39 static const uint32_t devopts[] = {
  40         SR_CONF_CONTINUOUS | SR_CONF_SET,
  41         SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
  42         SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
  43 };
  44
  45 static const uint32_t devopts_cg[] = {
  46         SR_CONF_ENABLED | SR_CONF_SET,
  47         SR_CONF_REGULATION | SR_CONF_GET,
  48         SR_CONF_VOLTAGE | SR_CONF_GET,
  49         SR_CONF_CURRENT | SR_CONF_GET,
  50         SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  51         SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED | SR_CONF_GET,
  52         SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_GET,
  53         SR_CONF_OVER_TEMPERATURE_PROTECTION | SR_CONF_GET,
  54         SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE | SR_CONF_GET,
  55         SR_CONF_UNDER_VOLTAGE_CONDITION | SR_CONF_GET,
  56         SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE | SR_CONF_GET,
  57 };
  58
  59 SR_PRIV struct sr_dev_driver arachnid_labs_re_load_pro_driver_info;
  60
  61 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
  62 {
  63         return std_init(sr_ctx, di, LOG_PREFIX);
  64 }
  65
  66 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  67 {
  68         struct sr_dev_inst *sdi;
  69         struct drv_context *drvc;
  70         struct dev_context *devc;
  71         struct sr_config *src;
  72         struct sr_serial_dev_inst *serial;
  73         struct sr_channel_group *cg;
  74         struct sr_channel *ch;
  75         GSList *l, *devices;
  76         int ret, len;
  77         const char *conn, *serialcomm;
  78         char buf[100];
  79         char *bufptr;
  80         double version;
  81
  82         devices = NULL;
  83         drvc = di->context;
  84         drvc->instances = NULL;
  85
  86         conn = serialcomm = NULL;
  87         for (l = options; l; l = l->next) {
  88                 src = l->data;
  89                 switch (src->key) {
  90                 case SR_CONF_CONN:
  91                         conn = g_variant_get_string(src->data, NULL);
  92                         break;
  93                 case SR_CONF_SERIALCOMM:
  94                         serialcomm = g_variant_get_string(src->data, NULL);
  95                         break;
  96                 }
  97         }
  98         if (!conn)
  99                 return NULL;
 100         if (!serialcomm)
 101                 serialcomm = SERIALCOMM;
 102
 103         serial = sr_serial_dev_inst_new(conn, serialcomm);
 104
 105         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
 106                 return NULL;
 107
 108         serial_flush(serial);
 109
 110         if (serial_write_blocking(serial, CMD_VERSION,
 111                         strlen(CMD_VERSION), serial_timeout(serial,
 112                         strlen(CMD_VERSION))) < (int)strlen(CMD_VERSION)) {
 113                 sr_dbg("Unable to write while probing for hardware.");
 114                 serial_close(serial);
 115                 return NULL;
 116         }
 117
 118         memset(buf, 0, sizeof(buf));
 119         bufptr = buf;
 120         len = sizeof(buf);
 121         ret = serial_readline(serial, &bufptr, &len, 3000);
 122
 123         if (ret < 0 || len < 9 || strncmp((const char *)&buf, "version ", 8)) {
 124                 sr_dbg("Unable to probe version number.");
 125                 serial_close(serial);
 126                 return NULL;
 127         }
 128
 129         version = g_ascii_strtod(buf + 8, NULL);
 130         if (version < 1.10) {
 131                 sr_info("Firmware >= 1.10 required (got %1.2f).", version);
 132                 serial_close(serial);
 133                 return NULL;
 134         }
 135
 136         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 137         sdi->status = SR_ST_ACTIVE;
 138         sdi->vendor = g_strdup("Arachnid Labs");
 139         sdi->model = g_strdup("Re:load Pro");
 140         sdi->version = g_strdup(buf + 8);
 141         sdi->driver = &arachnid_labs_re_load_pro_driver_info;
 142         sdi->inst_type = SR_INST_SERIAL;
 143         sdi->conn = serial;
 144
 145         cg = g_malloc0(sizeof(struct sr_channel_group));
 146         cg->name = g_strdup("1");
 147         sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
 148
 149         ch = sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "V");
 150         cg->channels = g_slist_append(cg->channels, ch);
 151
 152         ch = sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "I");
 153         cg->channels = g_slist_append(cg->channels, ch);
 154
 155         devc = g_malloc0(sizeof(struct dev_context));
 156         sdi->priv = devc;
 157         drvc->instances = g_slist_append(drvc->instances, sdi);
 158         devices = g_slist_append(devices, sdi);
 159
 160         serial_close(serial);
 161         if (!devices)
 162                 sr_serial_dev_inst_free(serial);
 163
 164         return devices;
 165 }
 166
 167 static GSList *dev_list(const struct sr_dev_driver *di)
 168 {
 169         return ((struct drv_context *)(di->context))->instances;
 170 }
 171
 172 static int dev_clear(const struct sr_dev_driver *di)
 173 {
 174         return std_dev_clear(di, NULL);
 175 }
 176
 177 static int cleanup(const struct sr_dev_driver *di)
 178 {
 179         return dev_clear(di);
 180 }
 181
 182 static int config_list(uint32_t key, GVariant **data,
 183         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 184 {
 185         GVariantBuilder gvb;
 186         int ret;
 187
 188         /* Always available. */
 189         if (key == SR_CONF_SCAN_OPTIONS) {
 190                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 191                         scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 192                 return SR_OK;
 193         }
 194
 195         if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
 196                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 197                         drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
 198                 return SR_OK;
 199         }
 200
 201         if (!sdi)
 202                 return SR_ERR_ARG;
 203
 204         ret = SR_OK;
 205
 206         if (!cg) {
 207                 /* No channel group: global options. */
 208                 switch (key) {
 209                 case SR_CONF_DEVICE_OPTIONS:
 210                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 211                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 212                         break;
 213                 default:
 214                         return SR_ERR_NA;
 215                 }
 216         } else {
 217                 switch (key) {
 218                 case SR_CONF_DEVICE_OPTIONS:
 219                         *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 220                                 devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t));
 221                         break;
 222                 case SR_CONF_CURRENT_LIMIT:
 223                         g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 224                         /* Min, max, step. */
 225                         g_variant_builder_add_value(&gvb, g_variant_new_double(0.0));
 226                         g_variant_builder_add_value(&gvb, g_variant_new_double(6.0));
 227                         g_variant_builder_add_value(&gvb, g_variant_new_double(0.001)); /* 1mA steps */
 228                         *data = g_variant_builder_end(&gvb);
 229                         break;
 230                 default:
 231                         return SR_ERR_NA;
 232                 }
 233         }
 234
 235         return ret;
 236 }
 237
 238 static int config_get(uint32_t key, GVariant **data,
 239         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 240 {
 241         struct dev_context *devc;
 242         int ret;
 243         float fvalue;
 244
 245         (void)cg;
 246
 247         devc = sdi->priv;
 248
 249         /*
 250          * These features/keys are not supported by the hardware:
 251          *  - SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE
 252          *  - SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD
 253          *  - SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE
 254          *  - SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD
 255          *  - SR_CONF_ENABLED (state cannot be queried, only set)
 256          */
 257
 258         ret = SR_OK;
 259         switch (key) {
 260         case SR_CONF_LIMIT_SAMPLES:
 261                 *data = g_variant_new_uint64(devc->limit_samples);
 262                 break;
 263         case SR_CONF_LIMIT_MSEC:
 264                 *data = g_variant_new_uint64(devc->limit_msec);
 265                 break;
 266         case SR_CONF_REGULATION:
 267                 *data = g_variant_new_string("CC"); /* Always CC mode. */
 268                 break;
 269         case SR_CONF_VOLTAGE:
 270                 if (reloadpro_get_voltage_current(sdi, &fvalue, NULL) < 0)
 271                         return SR_ERR;
 272                 *data = g_variant_new_double(fvalue);
 273                 break;
 274         case SR_CONF_CURRENT:
 275                 if (reloadpro_get_voltage_current(sdi, NULL, &fvalue) < 0)
 276                         return SR_ERR;
 277                 *data = g_variant_new_double(fvalue);
 278                 break;
 279         case SR_CONF_CURRENT_LIMIT:
 280                 if (reloadpro_get_current_limit(sdi, &fvalue) == SR_OK)
 281                         *data = g_variant_new_double(fvalue);
 282                 break;
 283         case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 284                 *data = g_variant_new_boolean(TRUE); /* Always on. */
 285                 break;
 286         case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 287                 *data = g_variant_new_boolean(TRUE); /* Always on. */
 288                 break;
 289         case SR_CONF_OVER_TEMPERATURE_PROTECTION:
 290                 *data = g_variant_new_boolean(TRUE); /* Always on. */
 291                 break;
 292         case SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE:
 293                 *data = g_variant_new_boolean(devc->otp_active);
 294                 break;
 295         case SR_CONF_UNDER_VOLTAGE_CONDITION:
 296                 *data = g_variant_new_boolean(TRUE); /* Always on. */
 297                 break;
 298         case SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE:
 299                 *data = g_variant_new_boolean(devc->uvc_active);
 300                 break;
 301         default:
 302                 return SR_ERR_NA;
 303         }
 304
 305         return ret;
 306 }
 307
 308 static int config_set(uint32_t key, GVariant *data,
 309         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 310 {
 311         struct dev_context *devc;
 312         int ret;
 313
 314         (void)cg;
 315
 316         if (sdi->status != SR_ST_ACTIVE)
 317                 return SR_ERR_DEV_CLOSED;
 318
 319         devc = sdi->priv;
 320
 321         ret = SR_OK;
 322         switch (key) {
 323         case SR_CONF_LIMIT_SAMPLES:
 324                 devc->limit_samples = g_variant_get_uint64(data);
 325                 break;
 326         case SR_CONF_LIMIT_MSEC:
 327                 devc->limit_msec = g_variant_get_uint64(data);
 328                 break;
 329         case SR_CONF_ENABLED:
 330                 ret = reloadpro_set_on_off(sdi, g_variant_get_boolean(data));
 331                 break;
 332         case SR_CONF_CURRENT_LIMIT:
 333                 ret = reloadpro_set_current_limit(sdi,
 334                         g_variant_get_double(data));
 335                 break;
 336         default:
 337                 ret = SR_ERR_NA;
 338         }
 339
 340         return ret;
 341 }
 342
 343 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 344 {
 345         int ret;
 346         struct dev_context *devc;
 347         struct sr_serial_dev_inst *serial;
 348
 349         if (sdi->status != SR_ST_ACTIVE)
 350                 return SR_ERR_DEV_CLOSED;
 351
 352         devc = sdi->priv;
 353         serial = sdi->conn;
 354
 355         /* Send the 'monitor <ms>' command (doesn't have a reply). */
 356         if ((ret = serial_write_blocking(serial, CMD_MONITOR,
 357                         strlen(CMD_MONITOR), serial_timeout(serial,
 358                         strlen(CMD_MONITOR)))) < (int)strlen(CMD_MONITOR)) {
 359                 sr_err("Unable to send 'monitor' command: %d.", ret);
 360                 return SR_ERR;
 361         }
 362
 363         /* Poll every 100ms, or whenever some data comes in. */
 364         serial_source_add(sdi->session, serial, G_IO_IN, 100,
 365                           reloadpro_receive_data, (void *)sdi);
 366
 367         std_session_send_df_header(sdi, LOG_PREFIX);
 368
 369         memset(devc->buf, 0, RELOADPRO_BUFSIZE);
 370         devc->buflen = 0;
 371         devc->num_samples = 0;
 372         devc->starttime = g_get_monotonic_time();
 373
 374         return SR_OK;
 375 }
 376
 377 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 378 {
 379         return std_serial_dev_acquisition_stop(sdi,
 380                 std_serial_dev_close, sdi->conn, LOG_PREFIX);
 381 }
 382
 383 SR_PRIV struct sr_dev_driver arachnid_labs_re_load_pro_driver_info = {
 384         .name = "arachnid-labs-re-load-pro",
 385         .longname = "Arachnid Labs Re:load Pro",
 386         .api_version = 1,
 387         .init = init,
 388         .cleanup = cleanup,
 389         .scan = scan,
 390         .dev_list = dev_list,
 391         .dev_clear = dev_clear,
 392         .config_get = config_get,
 393         .config_set = config_set,
 394         .config_list = config_list,
 395         .dev_open = std_serial_dev_open,
 396         .dev_close = std_serial_dev_close,
 397         .dev_acquisition_start = dev_acquisition_start,
 398         .dev_acquisition_stop = dev_acquisition_stop,
 399         .context = NULL,
 400 };