/* * This file is part of the libsigrok project. * * Copyright (C) 2012 Bert Vermeulen * * 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 . */ #include #include #include #include #include #include #include "libsigrok.h" #include "libsigrok-internal.h" #include "agilent-dmm.h" static const int32_t hwopts[] = { SR_CONF_CONN, SR_CONF_SERIALCOMM, }; static const int32_t hwcaps[] = { SR_CONF_MULTIMETER, SR_CONF_LIMIT_SAMPLES, SR_CONF_LIMIT_MSEC, SR_CONF_CONTINUOUS, }; extern const struct agdmm_job agdmm_jobs_u123x[]; extern const struct agdmm_recv agdmm_recvs_u123x[]; extern const struct agdmm_job agdmm_jobs_u125x[]; extern const struct agdmm_recv agdmm_recvs_u125x[]; /* This works on all the Agilent U12xxA series, although the * U127xA can apparently also run at 19200/8n1. */ #define SERIALCOMM "9600/8n1" static const struct agdmm_profile supported_agdmm[] = { { AGILENT_U1231A, "U1231A", agdmm_jobs_u123x, agdmm_recvs_u123x }, { AGILENT_U1232A, "U1232A", agdmm_jobs_u123x, agdmm_recvs_u123x }, { AGILENT_U1233A, "U1233A", agdmm_jobs_u123x, agdmm_recvs_u123x }, { AGILENT_U1251A, "U1251A", agdmm_jobs_u125x, agdmm_recvs_u125x }, { AGILENT_U1252A, "U1252A", agdmm_jobs_u125x, agdmm_recvs_u125x }, { AGILENT_U1253A, "U1253A", agdmm_jobs_u125x, agdmm_recvs_u125x }, { 0, NULL, NULL, NULL } }; SR_PRIV struct sr_dev_driver agdmm_driver_info; static struct sr_dev_driver *di = &agdmm_driver_info; static int init(struct sr_context *sr_ctx) { return std_init(sr_ctx, di, LOG_PREFIX); } static GSList *scan(GSList *options) { struct sr_dev_inst *sdi; struct drv_context *drvc; struct dev_context *devc; struct sr_config *src; struct sr_channel *ch; struct sr_serial_dev_inst *serial; GSList *l, *devices; int len, i; const char *conn, *serialcomm; char *buf, **tokens; drvc = di->priv; drvc->instances = NULL; 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; if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) return NULL; if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) return NULL; serial_flush(serial); if (serial_write(serial, "*IDN?\r\n", 7) == -1) { sr_err("Unable to send identification string: %s.", strerror(errno)); return NULL; } len = 128; if (!(buf = g_try_malloc(len))) { sr_err("Serial buffer malloc failed."); return NULL; } serial_readline(serial, &buf, &len, 150); if (!len) return NULL; tokens = g_strsplit(buf, ",", 4); if (!strcmp("Agilent Technologies", tokens[0]) && tokens[1] && tokens[2] && tokens[3]) { for (i = 0; supported_agdmm[i].model; i++) { if (strcmp(supported_agdmm[i].modelname, tokens[1])) continue; if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Agilent", tokens[1], tokens[3]))) return NULL; if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { sr_err("Device context malloc failed."); return NULL; } devc->profile = &supported_agdmm[i]; devc->cur_mq = -1; sdi->inst_type = SR_INST_SERIAL; sdi->conn = serial; sdi->priv = devc; sdi->driver = di; if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1"))) return NULL; sdi->channels = g_slist_append(sdi->channels, ch); drvc->instances = g_slist_append(drvc->instances, sdi); devices = g_slist_append(devices, sdi); break; } } g_strfreev(tokens); g_free(buf); serial_close(serial); if (!devices) sr_serial_dev_inst_free(serial); return devices; } static GSList *dev_list(void) { return ((struct drv_context *)(di->priv))->instances; } static int cleanup(void) { return std_dev_clear(di, NULL); } static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { struct dev_context *devc; (void)cg; if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; if (!(devc = sdi->priv)) { sr_err("sdi->priv was NULL."); return SR_ERR_BUG; } switch (id) { case SR_CONF_LIMIT_MSEC: /* TODO: not yet implemented */ if (g_variant_get_uint64(data) == 0) { sr_err("LIMIT_MSEC can't be 0."); return SR_ERR; } devc->limit_msec = g_variant_get_uint64(data); sr_dbg("Setting time limit to %" PRIu64 "ms.", devc->limit_msec); break; case SR_CONF_LIMIT_SAMPLES: devc->limit_samples = g_variant_get_uint64(data); sr_dbg("Setting sample limit to %" PRIu64 ".", devc->limit_samples); break; default: return SR_ERR_NA; } return SR_OK; } static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { (void)sdi; (void)cg; switch (key) { case SR_CONF_SCAN_OPTIONS: *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); break; case SR_CONF_DEVICE_OPTIONS: *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); break; default: return SR_ERR_NA; } return SR_OK; } static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) { struct dev_context *devc; struct sr_serial_dev_inst *serial; if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; if (!(devc = sdi->priv)) { sr_err("sdi->priv was NULL."); return SR_ERR_BUG; } devc->cb_data = cb_data; /* Send header packet to the session bus. */ std_session_send_df_header(cb_data, LOG_PREFIX); /* Poll every 100ms, or whenever some data comes in. */ serial = sdi->conn; serial_source_add(serial, G_IO_IN, 100, agdmm_receive_data, (void *)sdi); return SR_OK; } static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) { return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close, sdi->conn, LOG_PREFIX); } SR_PRIV struct sr_dev_driver agdmm_driver_info = { .name = "agilent-dmm", .longname = "Agilent U12xx series DMMs", .api_version = 1, .init = init, .cleanup = cleanup, .scan = scan, .dev_list = dev_list, .dev_clear = NULL, .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 = dev_acquisition_stop, .priv = NULL, };