2 * This file is part of the libsigrok project.
4 * Copyright (C) 2017 Frank Stettner <frank-stettner@gmx.net>
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/>.
24 static const uint32_t scanopts[] = {
28 static const uint32_t drvopts[] = {
32 static const uint32_t devopts[] = {
34 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
35 SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
36 SR_CONF_MEASURED_QUANTITY | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
37 SR_CONF_RANGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
38 SR_CONF_DIGITS | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
43 enum sr_mqflag mqflag;
45 {SR_MQ_VOLTAGE, SR_MQFLAG_DC},
46 {SR_MQ_VOLTAGE, SR_MQFLAG_AC},
47 {SR_MQ_CURRENT, SR_MQFLAG_DC},
48 {SR_MQ_CURRENT, SR_MQFLAG_AC},
49 {SR_MQ_RESISTANCE, 0},
50 {SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE},
55 enum sr_mqflag mqflag;
57 const char *range_str;
59 /* -99 is a dummy exponent for auto ranging. */
60 {SR_MQ_VOLTAGE, SR_MQFLAG_DC, -99, "Auto"},
61 {SR_MQ_VOLTAGE, SR_MQFLAG_DC, -2, "30mV"},
62 {SR_MQ_VOLTAGE, SR_MQFLAG_DC, -1, "300mV"},
63 {SR_MQ_VOLTAGE, SR_MQFLAG_DC, 0, "3V"},
64 {SR_MQ_VOLTAGE, SR_MQFLAG_DC, 1, "30V"},
65 {SR_MQ_VOLTAGE, SR_MQFLAG_DC, 2, "300V"},
66 /* -99 is a dummy exponent for auto ranging. */
67 {SR_MQ_VOLTAGE, SR_MQFLAG_AC, -99, "Auto"},
68 {SR_MQ_VOLTAGE, SR_MQFLAG_AC, -1, "300mV"},
69 {SR_MQ_VOLTAGE, SR_MQFLAG_AC, 0, "3V"},
70 {SR_MQ_VOLTAGE, SR_MQFLAG_AC, 1, "30V"},
71 {SR_MQ_VOLTAGE, SR_MQFLAG_AC, 2, "300V"},
72 /* -99 is a dummy exponent for auto ranging. */
73 {SR_MQ_CURRENT, SR_MQFLAG_DC, -99, "Auto"},
74 {SR_MQ_CURRENT, SR_MQFLAG_DC, -1, "300mV"},
75 {SR_MQ_CURRENT, SR_MQFLAG_DC, 0, "3V"},
76 /* -99 is a dummy exponent for auto ranging. */
77 {SR_MQ_CURRENT, SR_MQFLAG_AC, -99, "Auto"},
78 {SR_MQ_CURRENT, SR_MQFLAG_AC, -1, "300mV"},
79 {SR_MQ_CURRENT, SR_MQFLAG_AC, 0, "3V"},
80 /* -99 is a dummy exponent for auto ranging. */
81 {SR_MQ_RESISTANCE, 0, -99, "Auto"},
82 {SR_MQ_RESISTANCE, 0, 1, "30"},
83 {SR_MQ_RESISTANCE, 0, 2, "300"},
84 {SR_MQ_RESISTANCE, 0, 3, "3k"},
85 {SR_MQ_RESISTANCE, 0, 4, "30k"},
86 {SR_MQ_RESISTANCE, 0, 5, "300k"},
87 {SR_MQ_RESISTANCE, 0, 6, "3M"},
88 {SR_MQ_RESISTANCE, 0, 7, "30M"},
89 /* -99 is a dummy exponent for auto ranging. */
90 {SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, -99, "Auto"},
91 {SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, 1, "30R"},
92 {SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, 2, "300R"},
93 {SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, 3, "3kR"},
94 {SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, 4, "30kR"},
95 {SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, 5, "300kR"},
96 {SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, 6, "3MR"},
97 {SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, 7, "30MR"},
100 /** Available digits as strings. */
101 static const char *digits[] = {
105 /** Mapping between devc->spec_digits and digits string. */
106 static const char *digits_map[] = {
107 "", "", "", "", "3.5", "4.5", "5.5",
110 static struct sr_dev_driver hp_3478a_driver_info;
112 static int create_front_channel(struct sr_dev_inst *sdi, int chan_idx)
114 struct sr_channel *channel;
115 struct channel_context *chanc;
117 chanc = g_malloc(sizeof(*chanc));
118 chanc->location = TERMINAL_FRONT;
120 channel = sr_channel_new(sdi, chan_idx++, SR_CHANNEL_ANALOG, TRUE, "P1");
121 channel->priv = chanc;
126 static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
129 struct sr_dev_inst *sdi;
130 struct dev_context *devc;
132 sdi = g_malloc0(sizeof(struct sr_dev_inst));
133 sdi->vendor = g_strdup("Hewlett-Packard");
134 sdi->model = g_strdup("3478A");
136 sdi->driver = &hp_3478a_driver_info;
137 sdi->inst_type = SR_INST_SCPI;
139 devc = g_malloc0(sizeof(struct dev_context));
140 sr_sw_limits_init(&devc->limits);
143 /* Get actual status (function, digits, ...). */
144 ret = hp_3478a_get_status_bytes(sdi);
148 create_front_channel(sdi, 0);
153 static GSList *scan(struct sr_dev_driver *di, GSList *options)
155 return sr_scpi_scan(di->context, options, probe_device);
158 static int dev_open(struct sr_dev_inst *sdi)
160 return sr_scpi_open(sdi->conn);
163 static int dev_close(struct sr_dev_inst *sdi)
165 return sr_scpi_close(sdi->conn);
168 static int config_get(uint32_t key, GVariant **data,
169 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
171 struct dev_context *devc;
175 const char *range_str;
182 case SR_CONF_LIMIT_SAMPLES:
183 case SR_CONF_LIMIT_MSEC:
184 return sr_sw_limits_config_get(&devc->limits, key, data);
185 case SR_CONF_MEASURED_QUANTITY:
186 ret = hp_3478a_get_status_bytes(sdi);
189 arr[0] = g_variant_new_uint32(devc->measurement_mq);
190 arr[1] = g_variant_new_uint64(devc->measurement_mq_flags);
191 *data = g_variant_new_tuple(arr, 2);
194 ret = hp_3478a_get_status_bytes(sdi);
198 for (i = 0; i < ARRAY_SIZE(rangeopts); i++) {
199 if (rangeopts[i].mq == devc->measurement_mq &&
200 rangeopts[i].mqflag == devc->measurement_mq_flags &&
201 rangeopts[i].range_exp == devc->range_exp) {
202 range_str = rangeopts[i].range_str;
206 *data = g_variant_new_string(range_str);
209 ret = hp_3478a_get_status_bytes(sdi);
212 *data = g_variant_new_string(digits_map[devc->spec_digits]);
221 static int config_set(uint32_t key, GVariant *data,
222 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
224 struct dev_context *devc;
226 enum sr_mqflag mq_flags;
227 GVariant *tuple_child;
229 const char *range_str;
230 const char *digits_str;
237 case SR_CONF_LIMIT_SAMPLES:
238 case SR_CONF_LIMIT_MSEC:
239 return sr_sw_limits_config_set(&devc->limits, key, data);
240 case SR_CONF_MEASURED_QUANTITY:
241 tuple_child = g_variant_get_child_value(data, 0);
242 mq = g_variant_get_uint32(tuple_child);
243 g_variant_unref(tuple_child);
244 tuple_child = g_variant_get_child_value(data, 1);
245 mq_flags = g_variant_get_uint64(tuple_child);
246 g_variant_unref(tuple_child);
247 return hp_3478a_set_mq(sdi, mq, mq_flags);
249 range_str = g_variant_get_string(data, NULL);
250 for (i = 0; i < ARRAY_SIZE(rangeopts); i++) {
251 if (rangeopts[i].mq == devc->measurement_mq &&
252 rangeopts[i].mqflag == devc->measurement_mq_flags &&
253 g_strcmp0(rangeopts[i].range_str, range_str) == 0) {
254 return hp_3478a_set_range(sdi, rangeopts[i].range_exp);
259 digits_str = g_variant_get_string(data, NULL);
260 for (i = 0; i < ARRAY_SIZE(rangeopts); i++) {
261 if (g_strcmp0(digits_map[i], digits_str) == 0)
262 return hp_3478a_set_digits(sdi, i);
272 static int config_list(uint32_t key, GVariant **data,
273 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
275 struct dev_context *devc;
278 GVariant *gvar, *arr[2];
284 case SR_CONF_SCAN_OPTIONS:
285 case SR_CONF_DEVICE_OPTIONS:
286 return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
287 case SR_CONF_MEASURED_QUANTITY:
289 * TODO: move to std.c as
290 * SR_PRIV GVariant *std_gvar_measured_quantities()
292 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
293 for (i = 0; i < ARRAY_SIZE(mqopts); i++) {
294 arr[0] = g_variant_new_uint32(mqopts[i].mq);
295 arr[1] = g_variant_new_uint64(mqopts[i].mqflag);
296 gvar = g_variant_new_tuple(arr, 2);
297 g_variant_builder_add_value(&gvb, gvar);
299 *data = g_variant_builder_end(&gvb);
302 ret = hp_3478a_get_status_bytes(sdi);
305 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
306 for (i = 0; i < ARRAY_SIZE(rangeopts); i++) {
307 if (rangeopts[i].mq == devc->measurement_mq &&
308 rangeopts[i].mqflag == devc->measurement_mq_flags) {
309 g_variant_builder_add(&gvb, "s", rangeopts[i].range_str);
312 *data = g_variant_builder_end(&gvb);
315 *data = g_variant_new_strv(ARRAY_AND_SIZE(digits));
324 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
326 struct sr_scpi_dev_inst *scpi;
327 struct dev_context *devc;
332 sr_sw_limits_acquisition_start(&devc->limits);
333 std_session_send_df_header(sdi);
336 * NOTE: For faster readings, there are some things one can do:
337 * - Turn off the display: sr_scpi_send(scpi, "D3SIGROK").
338 * - Set the line frequency to 60Hz via switch (back of the unit).
339 * - Set to 3.5 digits measurement.
342 /* Set to internal trigger. */
343 sr_scpi_send(scpi, "T1");
344 /* Get device status. */
345 hp_3478a_get_status_bytes(sdi);
347 return sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 100,
348 hp_3478a_receive_data, (void *)sdi);
351 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
353 struct sr_scpi_dev_inst *scpi;
357 sr_scpi_source_remove(sdi->session, scpi);
358 std_session_send_df_end(sdi);
360 /* Set to internal trigger. */
361 sr_scpi_send(scpi, "T1");
362 /* Turn on display. */
363 sr_scpi_send(scpi, "D1");
368 static struct sr_dev_driver hp_3478a_driver_info = {
370 .longname = "HP 3478A",
373 .cleanup = std_cleanup,
375 .dev_list = std_dev_list,
376 .dev_clear = std_dev_clear,
377 .config_get = config_get,
378 .config_set = config_set,
379 .config_list = config_list,
380 .dev_open = dev_open,
381 .dev_close = dev_close,
382 .dev_acquisition_start = dev_acquisition_start,
383 .dev_acquisition_stop = dev_acquisition_stop,
386 SR_REGISTER_DEV_DRIVER(hp_3478a_driver_info);