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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2018 Bastian Schmitz <bastian.schmitz@udo.edu> | |
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 | ||
20 | #include <config.h> | |
21 | #include <string.h> | |
22 | #include "protocol.h" | |
23 | ||
24 | static const uint32_t scanopts[] = { | |
25 | SR_CONF_CONN, | |
26 | SR_CONF_SERIALCOMM, | |
27 | }; | |
28 | ||
29 | static const uint32_t drvopts[] = { | |
30 | SR_CONF_POWER_SUPPLY, | |
31 | }; | |
32 | ||
33 | static const uint32_t devopts[] = { | |
34 | SR_CONF_CONTINUOUS, | |
35 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
36 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
37 | SR_CONF_CHANNEL_CONFIG | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
38 | SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET, | |
39 | }; | |
40 | ||
41 | static const uint32_t devopts_cg[] = { | |
42 | SR_CONF_VOLTAGE | SR_CONF_GET, | |
43 | SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
44 | SR_CONF_CURRENT | SR_CONF_GET, | |
45 | SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
46 | }; | |
47 | ||
48 | static const char *channel_modes[] = { | |
49 | "Independent", | |
50 | }; | |
51 | ||
52 | static const struct gpd_model models[] = { | |
53 | { GPD_2303S, "GPD-2303S", | |
54 | CHANMODE_INDEPENDENT, | |
55 | 2, | |
56 | { | |
57 | /* Channel 1 */ | |
58 | { { 0, 30, 0.001 }, { 0, 3, 0.001 } }, | |
59 | /* Channel 2 */ | |
60 | { { 0, 30, 0.001 }, { 0, 3, 0.001 } }, | |
61 | }, | |
62 | }, | |
63 | }; | |
64 | ||
65 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
66 | { | |
67 | const char *conn, *serialcomm; | |
68 | const struct gpd_model *model; | |
69 | const struct sr_config *src; | |
70 | struct sr_channel *ch; | |
71 | struct sr_channel_group *cg; | |
72 | GSList *l; | |
73 | struct sr_serial_dev_inst *serial; | |
74 | struct sr_dev_inst *sdi; | |
75 | char reply[50]; | |
76 | unsigned int i; | |
77 | struct dev_context *devc; | |
78 | char channel[10]; | |
79 | GRegex *regex; | |
80 | GMatchInfo *match_info; | |
81 | unsigned int cc_cv_ch1, cc_cv_ch2, track1, track2, beep, baud1, baud2; | |
82 | ||
83 | serial = NULL; | |
84 | match_info = NULL; | |
85 | regex = NULL; | |
86 | conn = NULL; | |
87 | serialcomm = NULL; | |
88 | ||
89 | for (l = options; l; l = l->next) { | |
90 | src = l->data; | |
91 | switch (src->key) { | |
92 | case SR_CONF_CONN: | |
93 | conn = g_variant_get_string(src->data, NULL); | |
94 | break; | |
95 | case SR_CONF_SERIALCOMM: | |
96 | serialcomm = g_variant_get_string(src->data, NULL); | |
97 | break; | |
98 | } | |
99 | } | |
100 | ||
101 | if (!conn) | |
102 | return NULL; | |
103 | if (!serialcomm) | |
104 | serialcomm = "115200/8n1"; | |
105 | sr_info("Probing serial port %s.", conn); | |
106 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
107 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
108 | return NULL; | |
109 | ||
110 | serial_flush(serial); | |
111 | gpd_send_cmd(serial, "*IDN?\n"); | |
112 | if (gpd_receive_reply(serial, reply, sizeof(reply)) != SR_OK) { | |
113 | sr_err("Device did not reply."); | |
114 | goto error; | |
115 | } | |
116 | serial_flush(serial); | |
117 | ||
118 | /* | |
119 | * Returned identification string is for example: | |
120 | * "GW INSTEK,GPD-2303S,SN:ER915277,V2.10" | |
121 | */ | |
122 | regex = g_regex_new("GW INSTEK,(.+),SN:(.+),(V.+)", 0, 0, NULL); | |
123 | if (!g_regex_match(regex, reply, 0, &match_info)) { | |
124 | sr_err("Unsupported model '%s'.", reply); | |
125 | goto error; | |
126 | } | |
127 | ||
128 | model = NULL; | |
129 | for (i = 0; i < ARRAY_SIZE(models); i++) { | |
130 | if (!strcmp(g_match_info_fetch(match_info, 1), models[i].name)) { | |
131 | model = &models[i]; | |
132 | break; | |
133 | } | |
134 | } | |
135 | if (!model) { | |
136 | sr_err("Unsupported model '%s'.", reply); | |
137 | goto error; | |
138 | } | |
139 | ||
140 | sr_info("Detected model '%s'.", model->name); | |
141 | ||
142 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
143 | sdi->status = SR_ST_INACTIVE; | |
144 | sdi->vendor = g_strdup("GW Instek"); | |
145 | sdi->model = g_strdup(model->name); | |
146 | sdi->inst_type = SR_INST_SERIAL; | |
147 | sdi->conn = serial; | |
148 | ||
149 | for (i = 0; i < model->num_channels; i++) { | |
150 | snprintf(channel, sizeof(channel), "CH%d", i + 1); | |
151 | ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel); | |
152 | cg = g_malloc(sizeof(struct sr_channel_group)); | |
153 | cg->name = g_strdup(channel); | |
154 | cg->channels = g_slist_append(NULL, ch); | |
155 | cg->priv = NULL; | |
156 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); | |
157 | } | |
158 | ||
159 | devc = g_malloc0(sizeof(struct dev_context)); | |
160 | sr_sw_limits_init(&devc->limits); | |
161 | devc->model = model; | |
162 | devc->config = g_malloc0(sizeof(struct per_channel_config) | |
163 | * model->num_channels); | |
164 | sdi->priv = devc; | |
165 | ||
166 | serial_flush(serial); | |
167 | gpd_send_cmd(serial, "STATUS?\n"); | |
168 | gpd_receive_reply(serial, reply, sizeof(reply)); | |
169 | ||
170 | if (sscanf(reply, "%1u%1u%1u%1u%1u%1u%1u%1u", &cc_cv_ch1, | |
171 | &cc_cv_ch2, &track1, &track2, &beep, | |
172 | &devc->output_enabled, &baud1, &baud2) != 8) { | |
173 | sr_err("Invalid reply to STATUS: '%s'.", reply); | |
174 | goto error; | |
175 | } | |
176 | ||
177 | for (i = 0; i < model->num_channels; ++i) { | |
178 | gpd_send_cmd(serial, "ISET%d?\n", i + 1); | |
179 | gpd_receive_reply(serial, reply, sizeof(reply)); | |
180 | if (sscanf(reply, "%f", &devc->config[i].output_current_max) != 1) { | |
181 | sr_err("Invalid reply to ISETn?: '%s'.", reply); | |
182 | goto error; | |
183 | } | |
184 | ||
185 | gpd_send_cmd(serial, "VSET%d?\n", i + 1); | |
186 | gpd_receive_reply(serial, reply, sizeof(reply)); | |
187 | if (sscanf(reply, "%f", &devc->config[i].output_voltage_max) != 1) { | |
188 | sr_err("Invalid reply to VSETn?: '%s'.", reply); | |
189 | goto error; | |
190 | } | |
191 | gpd_send_cmd(serial, "IOUT%d?\n", i + 1); | |
192 | gpd_receive_reply(serial, reply, sizeof(reply)); | |
193 | if (sscanf(reply, "%f", &devc->config[i].output_current_last) != 1) { | |
194 | sr_err("Invalid reply to IOUTn?: '%s'.", reply); | |
195 | goto error; | |
196 | } | |
197 | gpd_send_cmd(serial, "VOUT%d?\n", i + 1); | |
198 | gpd_receive_reply(serial, reply, sizeof(reply)); | |
199 | if (sscanf(reply, "%f", &devc->config[i].output_voltage_last) != 1) { | |
200 | sr_err("Invalid reply to VOUTn?: '%s'.", reply); | |
201 | goto error; | |
202 | } | |
203 | } | |
204 | ||
205 | serial_close(serial); | |
206 | ||
207 | return std_scan_complete(di, g_slist_append(NULL, sdi)); | |
208 | ||
209 | error: | |
210 | if (match_info) | |
211 | g_match_info_free(match_info); | |
212 | if (regex) | |
213 | g_regex_unref(regex); | |
214 | if (serial) | |
215 | serial_close(serial); | |
216 | ||
217 | return NULL; | |
218 | } | |
219 | ||
220 | static int config_get(uint32_t key, GVariant **data, | |
221 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
222 | { | |
223 | int ret, channel; | |
224 | const struct dev_context *devc; | |
225 | const struct sr_channel *ch; | |
226 | ||
227 | if (!sdi) | |
228 | return SR_ERR_ARG; | |
229 | ||
230 | devc = sdi->priv; | |
231 | ||
232 | if (!cg) { | |
233 | switch (key) { | |
234 | case SR_CONF_CHANNEL_CONFIG: | |
235 | *data = g_variant_new_string( | |
236 | channel_modes[devc->channel_mode]); | |
237 | break; | |
238 | case SR_CONF_ENABLED: | |
239 | *data = g_variant_new_boolean(devc->output_enabled); | |
240 | break; | |
241 | default: | |
242 | return SR_ERR_NA; | |
243 | } | |
244 | } else { | |
245 | ch = cg->channels->data; | |
246 | channel = ch->index; | |
247 | ret = SR_OK; | |
248 | switch (key) { | |
249 | case SR_CONF_VOLTAGE: | |
250 | *data = g_variant_new_double( | |
251 | devc->config[channel].output_voltage_last); | |
252 | break; | |
253 | case SR_CONF_VOLTAGE_TARGET: | |
254 | *data = g_variant_new_double( | |
255 | devc->config[channel].output_voltage_max); | |
256 | break; | |
257 | case SR_CONF_CURRENT: | |
258 | *data = g_variant_new_double( | |
259 | devc->config[channel].output_current_last); | |
260 | break; | |
261 | case SR_CONF_CURRENT_LIMIT: | |
262 | *data = g_variant_new_double( | |
263 | devc->config[channel].output_current_max); | |
264 | break; | |
265 | default: | |
266 | return SR_ERR_NA; | |
267 | } | |
268 | } | |
269 | ||
270 | return ret; | |
271 | } | |
272 | ||
273 | static int config_set(uint32_t key, GVariant *data, | |
274 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
275 | { | |
276 | int ret, channel; | |
277 | const struct sr_channel *ch; | |
278 | double dval; | |
279 | gboolean bval; | |
280 | struct dev_context *devc; | |
281 | ||
282 | devc = sdi->priv; | |
283 | ||
284 | ret = SR_OK; | |
285 | ||
286 | switch (key) { | |
287 | case SR_CONF_LIMIT_MSEC: | |
288 | case SR_CONF_LIMIT_SAMPLES: | |
289 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
290 | case SR_CONF_ENABLED: | |
291 | bval = g_variant_get_boolean(data); | |
292 | gpd_send_cmd(sdi->conn, "OUT%c\n", bval ? '1' : '0'); | |
293 | devc->output_enabled = bval; | |
294 | break; | |
295 | case SR_CONF_VOLTAGE_TARGET: | |
296 | ch = cg->channels->data; | |
297 | channel = ch->index; | |
298 | dval = g_variant_get_double(data); | |
299 | if (dval < devc->model->channels[channel].voltage[0] | |
300 | || dval > devc->model->channels[channel].voltage[1]) | |
301 | return SR_ERR_ARG; | |
302 | gpd_send_cmd(sdi->conn, "VSET%d:%05.3lf\n", channel + 1, dval); | |
303 | devc->config[channel].output_voltage_max = dval; | |
304 | break; | |
305 | case SR_CONF_CURRENT_LIMIT: | |
306 | ch = cg->channels->data; | |
307 | channel = ch->index; | |
308 | dval = g_variant_get_double(data); | |
309 | if (dval < devc->model->channels[channel].current[0] | |
310 | || dval > devc->model->channels[channel].current[1]) | |
311 | return SR_ERR_ARG; | |
312 | gpd_send_cmd(sdi->conn, "ISET%d:%05.3lf\n", channel + 1, dval); | |
313 | devc->config[channel].output_current_max = dval; | |
314 | break; | |
315 | default: | |
316 | ret = SR_ERR_NA; | |
317 | break; | |
318 | } | |
319 | ||
320 | return ret; | |
321 | } | |
322 | ||
323 | static int config_list(uint32_t key, GVariant **data, | |
324 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
325 | { | |
326 | const struct dev_context *devc; | |
327 | const struct sr_channel *ch; | |
328 | int channel; | |
329 | ||
330 | devc = (sdi) ? sdi->priv : NULL; | |
331 | ||
332 | if (!cg) { | |
333 | switch (key) { | |
334 | case SR_CONF_SCAN_OPTIONS: | |
335 | case SR_CONF_DEVICE_OPTIONS: | |
336 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, | |
337 | drvopts, devopts); | |
338 | case SR_CONF_CHANNEL_CONFIG: | |
339 | *data = g_variant_new_strv(ARRAY_AND_SIZE(channel_modes)); | |
340 | break; | |
341 | default: | |
342 | return SR_ERR_NA; | |
343 | } | |
344 | } else { | |
345 | ch = cg->channels->data; | |
346 | channel = ch->index; | |
347 | ||
348 | switch (key) { | |
349 | case SR_CONF_DEVICE_OPTIONS: | |
350 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg)); | |
351 | break; | |
352 | case SR_CONF_VOLTAGE_TARGET: | |
353 | *data = std_gvar_min_max_step_array( | |
354 | devc->model->channels[channel].voltage); | |
355 | break; | |
356 | case SR_CONF_CURRENT_LIMIT: | |
357 | *data = std_gvar_min_max_step_array( | |
358 | devc->model->channels[channel].current); | |
359 | break; | |
360 | default: | |
361 | return SR_ERR_NA; | |
362 | } | |
363 | } | |
364 | ||
365 | return SR_OK; | |
366 | } | |
367 | ||
368 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
369 | { | |
370 | struct dev_context *devc; | |
371 | struct sr_serial_dev_inst *serial; | |
372 | ||
373 | devc = sdi->priv; | |
374 | ||
375 | sr_sw_limits_acquisition_start(&devc->limits); | |
376 | std_session_send_df_header(sdi); | |
377 | ||
378 | devc->reply_pending = FALSE; | |
379 | devc->req_sent_at = 0; | |
380 | serial = sdi->conn; | |
381 | serial_source_add(sdi->session, serial, G_IO_IN, 100, | |
382 | gpd_receive_data, (void *)sdi); | |
383 | ||
384 | return SR_OK; | |
385 | } | |
386 | ||
387 | static struct sr_dev_driver gwinstek_gpd_driver_info = { | |
388 | .name = "gwinstek-gpd", | |
389 | .longname = "GW Instek GPD", | |
390 | .api_version = 1, | |
391 | .init = std_init, | |
392 | .cleanup = std_cleanup, | |
393 | .scan = scan, | |
394 | .dev_list = std_dev_list, | |
395 | .dev_clear = std_dev_clear, | |
396 | .config_get = config_get, | |
397 | .config_set = config_set, | |
398 | .config_list = config_list, | |
399 | .dev_open = std_serial_dev_open, | |
400 | .dev_close = std_serial_dev_close, | |
401 | .dev_acquisition_start = dev_acquisition_start, | |
402 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, | |
403 | .context = NULL, | |
404 | }; | |
405 | SR_REGISTER_DEV_DRIVER(gwinstek_gpd_driver_info); |