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7a396ff5 GS |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2018 Gerhard Sittig <gerhard.sittig@gmx.net> | |
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 3 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
3cdad416 | 20 | #include <string.h> |
7a396ff5 GS |
21 | #include "protocol.h" |
22 | ||
3cdad416 GS |
23 | static const uint32_t scanopts[] = { |
24 | SR_CONF_CONN, | |
25 | }; | |
26 | ||
27 | static const uint32_t drvopts[] = { | |
28 | SR_CONF_MULTIMETER, | |
29 | }; | |
30 | ||
31 | static const uint32_t devopts[] = { | |
32 | SR_CONF_CONTINUOUS, | |
33 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
34 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
35 | SR_CONF_MEASURED_QUANTITY | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
36 | }; | |
37 | ||
38 | static const struct scpi_command cmdset_agilent[] = { | |
39 | { DMM_CMD_SETUP_REMOTE, "\n", }, | |
40 | { DMM_CMD_SETUP_FUNC, "CONF:%s", }, | |
41 | { DMM_CMD_QUERY_FUNC, "CONF?", }, | |
42 | { DMM_CMD_START_ACQ, "MEAS", }, | |
43 | { DMM_CMD_STOP_ACQ, "ABORT", }, | |
44 | { DMM_CMD_QUERY_VALUE, "READ?", }, | |
45 | { DMM_CMD_QUERY_PREC, "CONF?", }, | |
46 | ALL_ZERO, | |
47 | }; | |
48 | ||
49 | static const struct mqopt_item mqopts_agilent_5digit[] = { | |
50 | { SR_MQ_VOLTAGE, SR_MQFLAG_DC, "VOLT:DC", "VOLT ", NO_DFLT_PREC, }, | |
51 | { SR_MQ_VOLTAGE, SR_MQFLAG_AC, "VOLT:AC", "VOLT:AC ", NO_DFLT_PREC, }, | |
52 | { SR_MQ_CURRENT, SR_MQFLAG_DC, "CURR:DC", "CURR ", NO_DFLT_PREC, }, | |
53 | { SR_MQ_CURRENT, SR_MQFLAG_AC, "CURR:AC", "CURR:AC ", NO_DFLT_PREC, }, | |
54 | { SR_MQ_RESISTANCE, 0, "RES", "RES ", NO_DFLT_PREC, }, | |
55 | { SR_MQ_RESISTANCE, SR_MQFLAG_FOUR_WIRE, "FRES", "FRES ", NO_DFLT_PREC, }, | |
56 | { SR_MQ_CONTINUITY, 0, "CONT", "CONT", -1, }, | |
57 | { SR_MQ_CAPACITANCE, 0, "CAP", "CAP ", NO_DFLT_PREC, }, | |
58 | { SR_MQ_VOLTAGE, SR_MQFLAG_DC | SR_MQFLAG_DIODE, "DIOD", "DIOD", -4, }, | |
59 | { SR_MQ_TEMPERATURE, 0, "TEMP", "TEMP ", NO_DFLT_PREC, }, | |
60 | { SR_MQ_FREQUENCY, 0, "FREQ", "FREQ ", NO_DFLT_PREC, }, | |
61 | }; | |
62 | ||
63 | SR_PRIV const struct scpi_dmm_model models[] = { | |
64 | { | |
65 | "Agilent", "34405A", | |
66 | 1, 5, cmdset_agilent, ARRAY_AND_SIZE(mqopts_agilent_5digit), | |
67 | scpi_dmm_get_meas_agilent, | |
68 | }, | |
69 | }; | |
70 | ||
71 | static const struct scpi_dmm_model *is_compatible(const char *vendor, const char *model) | |
7a396ff5 | 72 | { |
3cdad416 GS |
73 | size_t i; |
74 | const struct scpi_dmm_model *entry; | |
75 | ||
76 | for (i = 0; i < ARRAY_SIZE(models); i++) { | |
77 | entry = &models[i]; | |
78 | if (!entry->vendor || !entry->model) | |
79 | continue; | |
80 | if (strcmp(vendor, entry->vendor) != 0) | |
81 | continue; | |
82 | if (strcmp(model, entry->model) != 0) | |
83 | continue; | |
84 | return entry; | |
85 | } | |
7a396ff5 | 86 | |
3cdad416 GS |
87 | return NULL; |
88 | } | |
7a396ff5 | 89 | |
3cdad416 GS |
90 | static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi) |
91 | { | |
92 | struct sr_scpi_hw_info *hw_info; | |
93 | int ret; | |
94 | const char *vendor; | |
95 | const struct scpi_dmm_model *model; | |
96 | struct sr_dev_inst *sdi; | |
97 | struct dev_context *devc; | |
98 | size_t i; | |
99 | gchar *channel_name; | |
100 | ||
101 | ret = sr_scpi_get_hw_id(scpi, &hw_info); | |
102 | scpi_dmm_cmd_delay(scpi); | |
103 | if (ret != SR_OK) { | |
104 | sr_info("Could not get IDN response."); | |
105 | return NULL; | |
106 | } | |
107 | vendor = sr_vendor_alias(hw_info->manufacturer); | |
108 | model = is_compatible(vendor, hw_info->model); | |
109 | if (!model) { | |
110 | sr_scpi_hw_info_free(hw_info); | |
111 | return NULL; | |
112 | } | |
7a396ff5 | 113 | |
3cdad416 GS |
114 | sdi = g_malloc0(sizeof(*sdi)); |
115 | sdi->vendor = g_strdup(hw_info->manufacturer); | |
116 | sdi->model = g_strdup(hw_info->model); | |
117 | sdi->version = g_strdup(hw_info->firmware_version); | |
118 | sdi->serial_num = g_strdup(hw_info->serial_number); | |
119 | sdi->conn = scpi; | |
120 | sdi->driver = &scpi_dmm_driver_info; | |
121 | sdi->inst_type = SR_INST_SCPI; | |
122 | sr_scpi_hw_info_free(hw_info); | |
123 | ||
124 | devc = g_malloc0(sizeof(*devc)); | |
125 | sdi->priv = devc; | |
126 | devc->num_channels = model->num_channels; | |
127 | devc->cmdset = model->cmdset; | |
128 | devc->model = model; | |
129 | ||
130 | for (i = 0; i < devc->num_channels; i++) { | |
131 | channel_name = g_strdup_printf("P%zu", i + 1); | |
132 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, channel_name); | |
133 | } | |
134 | ||
135 | return sdi; | |
136 | } | |
7a396ff5 | 137 | |
3cdad416 GS |
138 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
139 | { | |
140 | return sr_scpi_scan(di->context, options, probe_device); | |
7a396ff5 GS |
141 | } |
142 | ||
143 | static int dev_open(struct sr_dev_inst *sdi) | |
144 | { | |
3cdad416 GS |
145 | struct sr_scpi_dev_inst *scpi; |
146 | int ret; | |
7a396ff5 | 147 | |
3cdad416 GS |
148 | scpi = sdi->conn; |
149 | ret = sr_scpi_open(scpi); | |
150 | if (ret < 0) { | |
151 | sr_err("Failed to open SCPI device: %s.", sr_strerror(ret)); | |
152 | return SR_ERR; | |
153 | } | |
7a396ff5 GS |
154 | |
155 | return SR_OK; | |
156 | } | |
157 | ||
158 | static int dev_close(struct sr_dev_inst *sdi) | |
159 | { | |
3cdad416 | 160 | struct sr_scpi_dev_inst *scpi; |
7a396ff5 | 161 | |
3cdad416 GS |
162 | scpi = sdi->conn; |
163 | if (!scpi) | |
164 | return SR_ERR_BUG; | |
7a396ff5 | 165 | |
3cdad416 GS |
166 | sr_dbg("DIAG: sdi->status %d.", sdi->status - SR_ST_NOT_FOUND); |
167 | if (sdi->status <= SR_ST_INACTIVE) | |
168 | return SR_OK; | |
169 | ||
170 | return sr_scpi_close(scpi); | |
7a396ff5 GS |
171 | } |
172 | ||
173 | static int config_get(uint32_t key, GVariant **data, | |
174 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
175 | { | |
3cdad416 GS |
176 | struct dev_context *devc; |
177 | enum sr_mq mq; | |
178 | enum sr_mqflag mqflag; | |
179 | GVariant *arr[2]; | |
7a396ff5 GS |
180 | int ret; |
181 | ||
7a396ff5 GS |
182 | (void)cg; |
183 | ||
3cdad416 GS |
184 | devc = sdi->priv; |
185 | ||
7a396ff5 | 186 | switch (key) { |
3cdad416 GS |
187 | case SR_CONF_LIMIT_SAMPLES: |
188 | case SR_CONF_LIMIT_MSEC: | |
189 | return sr_sw_limits_config_get(&devc->limits, key, data); | |
190 | case SR_CONF_MEASURED_QUANTITY: | |
191 | ret = scpi_dmm_get_mq(sdi, &mq, &mqflag, NULL); | |
192 | if (ret != SR_OK) | |
193 | return ret; | |
194 | arr[0] = g_variant_new_uint32(mq); | |
195 | arr[1] = g_variant_new_uint64(mqflag); | |
196 | *data = g_variant_new_tuple(arr, ARRAY_SIZE(arr)); | |
197 | return SR_OK; | |
7a396ff5 GS |
198 | default: |
199 | return SR_ERR_NA; | |
200 | } | |
7a396ff5 GS |
201 | } |
202 | ||
203 | static int config_set(uint32_t key, GVariant *data, | |
204 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
205 | { | |
3cdad416 GS |
206 | struct dev_context *devc; |
207 | enum sr_mq mq; | |
208 | enum sr_mqflag mqflag; | |
209 | GVariant *tuple_child; | |
7a396ff5 | 210 | |
7a396ff5 GS |
211 | (void)cg; |
212 | ||
3cdad416 GS |
213 | devc = sdi->priv; |
214 | ||
7a396ff5 | 215 | switch (key) { |
3cdad416 GS |
216 | case SR_CONF_LIMIT_SAMPLES: |
217 | case SR_CONF_LIMIT_MSEC: | |
218 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
219 | case SR_CONF_MEASURED_QUANTITY: | |
220 | tuple_child = g_variant_get_child_value(data, 0); | |
221 | mq = g_variant_get_uint32(tuple_child); | |
222 | tuple_child = g_variant_get_child_value(data, 1); | |
223 | mqflag = g_variant_get_uint64(tuple_child); | |
224 | g_variant_unref(tuple_child); | |
225 | return scpi_dmm_set_mq(sdi, mq, mqflag); | |
7a396ff5 | 226 | default: |
3cdad416 | 227 | return SR_ERR_NA; |
7a396ff5 | 228 | } |
7a396ff5 GS |
229 | } |
230 | ||
231 | static int config_list(uint32_t key, GVariant **data, | |
232 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
233 | { | |
3cdad416 GS |
234 | struct dev_context *devc; |
235 | GVariant *gvar, *arr[2]; | |
236 | GVariantBuilder gvb; | |
237 | size_t i; | |
7a396ff5 | 238 | |
7a396ff5 GS |
239 | (void)cg; |
240 | ||
3cdad416 GS |
241 | devc = sdi ? sdi->priv : NULL; |
242 | ||
7a396ff5 | 243 | switch (key) { |
3cdad416 GS |
244 | case SR_CONF_SCAN_OPTIONS: |
245 | case SR_CONF_DEVICE_OPTIONS: | |
246 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
247 | case SR_CONF_MEASURED_QUANTITY: | |
248 | /* TODO Use std_gvar_measured_quantities() when available. */ | |
249 | if (!devc) | |
250 | return SR_ERR_ARG; | |
251 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
252 | for (i = 0; i < devc->model->mqopt_size; i++) { | |
253 | arr[0] = g_variant_new_uint32(devc->model->mqopts[i].mq); | |
254 | arr[1] = g_variant_new_uint64(devc->model->mqopts[i].mqflag); | |
255 | gvar = g_variant_new_tuple(arr, ARRAY_SIZE(arr)); | |
256 | g_variant_builder_add_value(&gvb, gvar); | |
257 | } | |
258 | *data = g_variant_builder_end(&gvb); | |
259 | return SR_OK; | |
7a396ff5 | 260 | default: |
3cdad416 | 261 | (void)devc; |
7a396ff5 GS |
262 | return SR_ERR_NA; |
263 | } | |
7a396ff5 GS |
264 | } |
265 | ||
266 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
267 | { | |
3cdad416 GS |
268 | struct sr_scpi_dev_inst *scpi; |
269 | struct dev_context *devc; | |
270 | int ret; | |
271 | const char *command; | |
272 | ||
273 | scpi = sdi->conn; | |
274 | devc = sdi->priv; | |
275 | ||
276 | ret = scpi_dmm_get_mq(sdi, &devc->start_acq_mq.curr_mq, | |
277 | &devc->start_acq_mq.curr_mqflag, NULL); | |
278 | if (ret != SR_OK) | |
279 | return ret; | |
280 | ||
281 | command = sr_scpi_cmd_get(devc->cmdset, DMM_CMD_START_ACQ); | |
282 | if (command && *command) { | |
283 | ret = sr_scpi_send(scpi, command); | |
284 | scpi_dmm_cmd_delay(scpi); | |
285 | if (ret != SR_OK) | |
286 | return ret; | |
287 | } | |
7a396ff5 | 288 | |
3cdad416 GS |
289 | sr_sw_limits_acquisition_start(&devc->limits); |
290 | ret = std_session_send_df_header(sdi); | |
291 | if (ret != SR_OK) | |
292 | return ret; | |
293 | ||
294 | ret = sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 10, | |
295 | scpi_dmm_receive_data, (void *)sdi); | |
296 | if (ret != SR_OK) | |
297 | return ret; | |
7a396ff5 GS |
298 | |
299 | return SR_OK; | |
300 | } | |
301 | ||
302 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
303 | { | |
3cdad416 GS |
304 | struct sr_scpi_dev_inst *scpi; |
305 | struct dev_context *devc; | |
306 | const char *command; | |
307 | ||
308 | scpi = sdi->conn; | |
309 | devc = sdi->priv; | |
7a396ff5 | 310 | |
3cdad416 GS |
311 | command = sr_scpi_cmd_get(devc->cmdset, DMM_CMD_STOP_ACQ); |
312 | if (command && *command) { | |
313 | (void)sr_scpi_send(scpi, command); | |
314 | scpi_dmm_cmd_delay(scpi); | |
315 | } | |
316 | sr_scpi_source_remove(sdi->session, scpi); | |
317 | ||
318 | std_session_send_df_end(sdi); | |
7a396ff5 GS |
319 | |
320 | return SR_OK; | |
321 | } | |
322 | ||
323 | SR_PRIV struct sr_dev_driver scpi_dmm_driver_info = { | |
324 | .name = "scpi-dmm", | |
325 | .longname = "SCPI DMM", | |
326 | .api_version = 1, | |
327 | .init = std_init, | |
328 | .cleanup = std_cleanup, | |
329 | .scan = scan, | |
330 | .dev_list = std_dev_list, | |
331 | .dev_clear = std_dev_clear, | |
332 | .config_get = config_get, | |
333 | .config_set = config_set, | |
334 | .config_list = config_list, | |
335 | .dev_open = dev_open, | |
336 | .dev_close = dev_close, | |
337 | .dev_acquisition_start = dev_acquisition_start, | |
338 | .dev_acquisition_stop = dev_acquisition_stop, | |
339 | .context = NULL, | |
340 | }; | |
7a396ff5 | 341 | SR_REGISTER_DEV_DRIVER(scpi_dmm_driver_info); |