/* * This file is part of the libsigrok project. * * Copyright (C) 2013 Matthias Heidbrink * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ /** @file * Norma DM9x0/Siemens B102x DMMs driver. * @internal */ #include #include "protocol.h" static const uint32_t scanopts[] = { SR_CONF_CONN, SR_CONF_SERIALCOMM, }; static const uint32_t devopts[] = { SR_CONF_MULTIMETER, SR_CONF_CONTINUOUS, SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, SR_CONF_LIMIT_MSEC | SR_CONF_SET, }; #define BUF_MAX 50 #define SERIALCOMM "4800/8n1/dtr=1/rts=0/flow=1" static struct sr_dev_driver norma_dmm_driver_info; static struct sr_dev_driver siemens_b102x_driver_info; static const char *get_brandstr(struct sr_dev_driver *drv) { return (drv == &norma_dmm_driver_info) ? "Norma" : "Siemens"; } static const char *get_typestr(int type, struct sr_dev_driver *drv) { static const char *nameref[5][2] = { {"DM910", "B1024"}, {"DM920", "B1025"}, {"DM930", "B1026"}, {"DM940", "B1027"}, {"DM950", "B1028"}, }; if ((type < 1) || (type > 5)) return "Unknown type!"; return nameref[type - 1][(drv == &siemens_b102x_driver_info)]; } static GSList *scan(struct sr_dev_driver *drv, GSList *options) { struct sr_dev_inst *sdi; struct dev_context *devc; struct sr_config *src; struct sr_serial_dev_inst *serial; GSList *l, *devices; int len, cnt, auxtype; const char *conn, *serialcomm; char *buf; char req[10]; devices = NULL; conn = serialcomm = NULL; for (l = options; l; l = l->next) { src = l->data; switch (src->key) { case SR_CONF_CONN: conn = g_variant_get_string(src->data, NULL); break; case SR_CONF_SERIALCOMM: serialcomm = g_variant_get_string(src->data, NULL); break; } } if (!conn) return NULL; if (!serialcomm) serialcomm = SERIALCOMM; serial = sr_serial_dev_inst_new(conn, serialcomm); if (serial_open(serial, SERIAL_RDWR) != SR_OK) return NULL; serial_flush(serial); buf = g_malloc(BUF_MAX); snprintf(req, sizeof(req), "%s\r\n", nmadmm_requests[NMADMM_REQ_IDN].req_str); g_usleep(150 * 1000); /* Wait a little to allow serial port to settle. */ for (cnt = 0; cnt < 7; cnt++) { if (serial_write_blocking(serial, req, strlen(req), serial_timeout(serial, strlen(req))) < 0) { sr_err("Unable to send identification request."); return NULL; } len = BUF_MAX; serial_readline(serial, &buf, &len, NMADMM_TIMEOUT_MS); if (!len) continue; buf[BUF_MAX - 1] = '\0'; /* Match ID string, e.g. "1834 065 V1.06,IF V1.02" (DM950). */ if (g_regex_match_simple("^1834 [^,]*,IF V*", (char *)buf, 0, 0)) { auxtype = xgittoint(buf[7]); sr_spew("%s %s DMM %s detected!", get_brandstr(drv), get_typestr(auxtype, drv), buf + 9); sdi = g_malloc0(sizeof(struct sr_dev_inst)); sdi->status = SR_ST_INACTIVE; sdi->vendor = g_strdup(get_brandstr(drv)); sdi->model = g_strdup(get_typestr(auxtype, drv)); sdi->version = g_strdup(buf + 9); devc = g_malloc0(sizeof(struct dev_context)); sr_sw_limits_init(&devc->limits); devc->type = auxtype; sdi->conn = serial; sdi->priv = devc; sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1"); devices = g_slist_append(devices, sdi); break; } /* * The interface of the DM9x0 contains a cap that needs to * charge for up to 10s before the interface works, if not * powered externally. Therefore wait a little to improve * chances. */ if (cnt == 3) { sr_info("Waiting 5s to allow interface to settle."); g_usleep(5 * 1000 * 1000); } } g_free(buf); serial_close(serial); if (!devices) sr_serial_dev_inst_free(serial); return std_scan_complete(drv, devices); } static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { struct dev_context *devc; (void)cg; devc = sdi->priv; return sr_sw_limits_config_set(&devc->limits, key, data); } static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, NULL, devopts); } static int dev_acquisition_start(const struct sr_dev_inst *sdi) { struct dev_context *devc; struct sr_serial_dev_inst *serial; devc = sdi->priv; sr_sw_limits_acquisition_start(&devc->limits); std_session_send_df_header(sdi); /* Poll every 100ms, or whenever some data comes in. */ serial = sdi->conn; serial_source_add(sdi->session, serial, G_IO_IN, 100, norma_dmm_receive_data, (void *)sdi); return SR_OK; } static struct sr_dev_driver norma_dmm_driver_info = { .name = "norma-dmm", .longname = "Norma DM9x0 DMMs", .api_version = 1, .init = std_init, .cleanup = std_cleanup, .scan = scan, .dev_list = std_dev_list, .dev_clear = std_dev_clear, .config_get = NULL, .config_set = config_set, .config_list = config_list, .dev_open = std_serial_dev_open, .dev_close = std_serial_dev_close, .dev_acquisition_start = dev_acquisition_start, .dev_acquisition_stop = std_serial_dev_acquisition_stop, .context = NULL, }; SR_REGISTER_DEV_DRIVER(norma_dmm_driver_info); static struct sr_dev_driver siemens_b102x_driver_info = { .name = "siemens-b102x", .longname = "Siemens B102x DMMs", .api_version = 1, .init = std_init, .cleanup = std_cleanup, .scan = scan, .dev_list = std_dev_list, .dev_clear = std_dev_clear, .config_get = NULL, .config_set = config_set, .config_list = config_list, .dev_open = std_serial_dev_open, .dev_close = std_serial_dev_close, .dev_acquisition_start = dev_acquisition_start, .dev_acquisition_stop = std_serial_dev_acquisition_stop, .context = NULL, }; SR_REGISTER_DEV_DRIVER(siemens_b102x_driver_info);