2 * This file is part of the libsigrok project.
4 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
21 #include <sys/types.h>
26 #include "libsigrok.h"
27 #include "libsigrok-internal.h"
28 #include "agilent-dmm.h"
30 static const int32_t hwopts[] = {
35 static const int32_t hwcaps[] = {
37 SR_CONF_LIMIT_SAMPLES,
42 extern const struct agdmm_job agdmm_jobs_u123x[];
43 extern const struct agdmm_recv agdmm_recvs_u123x[];
44 extern const struct agdmm_job agdmm_jobs_u125x[];
45 extern const struct agdmm_recv agdmm_recvs_u125x[];
47 /* This works on all the Agilent U12xxA series, although the
48 * U127xA can apparently also run at 19200/8n1. */
49 #define SERIALCOMM "9600/8n1"
51 static const struct agdmm_profile supported_agdmm[] = {
52 { AGILENT_U1231A, "U1231A", agdmm_jobs_u123x, agdmm_recvs_u123x },
53 { AGILENT_U1232A, "U1232A", agdmm_jobs_u123x, agdmm_recvs_u123x },
54 { AGILENT_U1233A, "U1233A", agdmm_jobs_u123x, agdmm_recvs_u123x },
55 { AGILENT_U1251A, "U1251A", agdmm_jobs_u125x, agdmm_recvs_u125x },
56 { AGILENT_U1252A, "U1252A", agdmm_jobs_u125x, agdmm_recvs_u125x },
57 { AGILENT_U1253A, "U1253A", agdmm_jobs_u125x, agdmm_recvs_u125x },
58 { 0, NULL, NULL, NULL }
61 SR_PRIV struct sr_dev_driver agdmm_driver_info;
62 static struct sr_dev_driver *di = &agdmm_driver_info;
64 /* Properly close and free all devices. */
65 static int clear_instances(void)
67 struct sr_dev_inst *sdi;
68 struct drv_context *drvc;
69 struct dev_context *devc;
70 struct sr_serial_dev_inst *serial;
73 if (!(drvc = di->priv))
77 for (l = drvc->instances; l; l = l->next) {
80 if (!(devc = sdi->priv))
83 sr_serial_dev_inst_free(serial);
84 sr_dev_inst_free(sdi);
86 g_slist_free(drvc->instances);
87 drvc->instances = NULL;
92 static int hw_init(struct sr_context *sr_ctx)
94 return std_hw_init(sr_ctx, di, LOG_PREFIX);
97 static GSList *hw_scan(GSList *options)
99 struct sr_dev_inst *sdi;
100 struct drv_context *drvc;
101 struct dev_context *devc;
102 struct sr_config *src;
103 struct sr_probe *probe;
104 struct sr_serial_dev_inst *serial;
107 const char *conn, *serialcomm;
111 drvc->instances = NULL;
114 conn = serialcomm = NULL;
115 for (l = options; l; l = l->next) {
119 conn = g_variant_get_string(src->data, NULL);
121 case SR_CONF_SERIALCOMM:
122 serialcomm = g_variant_get_string(src->data, NULL);
129 serialcomm = SERIALCOMM;
131 if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
134 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
137 serial_flush(serial);
138 if (serial_write(serial, "*IDN?\r\n", 7) == -1) {
139 sr_err("Unable to send identification string: %s.",
145 if (!(buf = g_try_malloc(len))) {
146 sr_err("Serial buffer malloc failed.");
149 serial_readline(serial, &buf, &len, 150);
153 tokens = g_strsplit(buf, ",", 4);
154 if (!strcmp("Agilent Technologies", tokens[0])
155 && tokens[2] && tokens[3]) {
156 for (i = 0; supported_agdmm[i].model; i++) {
157 if (strcmp(supported_agdmm[i].modelname, tokens[1]))
159 if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, tokens[0],
160 tokens[1], tokens[3])))
162 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
163 sr_err("Device context malloc failed.");
166 devc->profile = &supported_agdmm[i];
168 sdi->inst_type = SR_INST_SERIAL;
172 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
174 sdi->probes = g_slist_append(sdi->probes, probe);
175 drvc->instances = g_slist_append(drvc->instances, sdi);
176 devices = g_slist_append(devices, sdi);
183 serial_close(serial);
185 sr_serial_dev_inst_free(serial);
190 static GSList *hw_dev_list(void)
192 return ((struct drv_context *)(di->priv))->instances;
195 static int hw_dev_open(struct sr_dev_inst *sdi)
197 struct sr_serial_dev_inst *serial;
200 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
203 sdi->status = SR_ST_ACTIVE;
208 static int hw_dev_close(struct sr_dev_inst *sdi)
210 struct sr_serial_dev_inst *serial;
213 if (serial && serial->fd != -1) {
214 serial_close(serial);
215 sdi->status = SR_ST_INACTIVE;
221 static int hw_cleanup(void)
229 static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
231 struct dev_context *devc;
233 if (sdi->status != SR_ST_ACTIVE)
234 return SR_ERR_DEV_CLOSED;
236 if (!(devc = sdi->priv)) {
237 sr_err("sdi->priv was NULL.");
242 case SR_CONF_LIMIT_MSEC:
243 /* TODO: not yet implemented */
244 if (g_variant_get_uint64(data) == 0) {
245 sr_err("LIMIT_MSEC can't be 0.");
248 devc->limit_msec = g_variant_get_uint64(data);
249 sr_dbg("Setting time limit to %" PRIu64 "ms.",
252 case SR_CONF_LIMIT_SAMPLES:
253 devc->limit_samples = g_variant_get_uint64(data);
254 sr_dbg("Setting sample limit to %" PRIu64 ".",
255 devc->limit_samples);
264 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
270 case SR_CONF_SCAN_OPTIONS:
271 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
272 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
274 case SR_CONF_DEVICE_OPTIONS:
275 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
276 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
285 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
287 struct dev_context *devc;
288 struct sr_serial_dev_inst *serial;
290 if (sdi->status != SR_ST_ACTIVE)
291 return SR_ERR_DEV_CLOSED;
293 if (!(devc = sdi->priv)) {
294 sr_err("sdi->priv was NULL.");
298 devc->cb_data = cb_data;
300 /* Send header packet to the session bus. */
301 std_session_send_df_header(cb_data, LOG_PREFIX);
303 /* Poll every 100ms, or whenever some data comes in. */
305 sr_source_add(serial->fd, G_IO_IN, 100, agdmm_receive_data, (void *)sdi);
310 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
312 return std_hw_dev_acquisition_stop_serial(sdi, cb_data, hw_dev_close,
313 sdi->conn, LOG_PREFIX);
316 SR_PRIV struct sr_dev_driver agdmm_driver_info = {
317 .name = "agilent-dmm",
318 .longname = "Agilent U12xx series DMMs",
321 .cleanup = hw_cleanup,
323 .dev_list = hw_dev_list,
324 .dev_clear = clear_instances,
326 .config_set = config_set,
327 .config_list = config_list,
328 .dev_open = hw_dev_open,
329 .dev_close = hw_dev_close,
330 .dev_acquisition_start = hw_dev_acquisition_start,
331 .dev_acquisition_stop = hw_dev_acquisition_stop,