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41b7bd01 MH |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz> | |
1c3d002b | 5 | * Copyright (C) 2014 Bert Vermeulen <bert@biot.com> (code from atten-pps3xxx) |
41b7bd01 MH |
6 | * |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
1c3d002b MH |
21 | /** @file |
22 | * <em>Motech LPS-30x series</em> power supply driver | |
23 | * @internal | |
24 | */ | |
25 | ||
26 | #include <ctype.h> | |
27 | #include <errno.h> | |
28 | #include <math.h> | |
29 | #include <string.h> | |
30 | ||
41b7bd01 MH |
31 | #include "protocol.h" |
32 | ||
1c3d002b | 33 | /* Forward declarations */ |
41b7bd01 | 34 | SR_PRIV struct sr_dev_driver motech_lps_301_driver_info; |
1c3d002b MH |
35 | SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen); |
36 | SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char* fmt, va_list args); | |
37 | SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char* fmt, ...); | |
38 | SR_PRIV int lps_cmd_reply(char* reply, struct sr_serial_dev_inst *serial, const char* fmt, ...); | |
39 | SR_PRIV int lps_query_status(struct sr_dev_inst* sdi); | |
40 | ||
41 | /* Serial communication parameters */ | |
42 | #define SERIALCOMM "2400/8n1/dtr=1/rts=1/flow=0" | |
43 | ||
44 | #define VENDOR_MOTECH "Motech" | |
45 | ||
46 | /** Driver scanning options. */ | |
47 | static const int32_t hwopts[] = { | |
48 | SR_CONF_CONN, | |
49 | SR_CONF_SERIALCOMM, | |
50 | }; | |
51 | ||
52 | /** Hardware capabilities generic. */ | |
53 | static const int32_t hwcaps[] = { | |
54 | /* Device class */ | |
55 | SR_CONF_POWER_SUPPLY, | |
56 | /* Aquisition modes. */ | |
57 | SR_CONF_LIMIT_SAMPLES, | |
58 | SR_CONF_LIMIT_MSEC, | |
59 | SR_CONF_CONTINUOUS, | |
60 | /* Device configuration */ | |
61 | SR_CONF_OUTPUT_CHANNEL, | |
62 | }; | |
63 | ||
64 | /** Hardware capabilities channel 1, 2. */ | |
65 | static const int32_t hwcaps_ch12[] = { | |
66 | SR_CONF_OUTPUT_VOLTAGE, | |
67 | SR_CONF_OUTPUT_VOLTAGE_MAX, | |
68 | SR_CONF_OUTPUT_CURRENT, | |
69 | SR_CONF_OUTPUT_CURRENT_MAX, | |
70 | SR_CONF_OUTPUT_ENABLED, | |
71 | }; | |
72 | ||
73 | /** Hardware capabilities channel 3. (LPS-304/305 only). */ | |
74 | static const int32_t hwcaps_ch3[] = { | |
75 | SR_CONF_OUTPUT_VOLTAGE, | |
76 | SR_CONF_OUTPUT_ENABLED, | |
77 | }; | |
78 | ||
79 | static const char *channel_modes[] = { | |
80 | "Independent", | |
81 | "Track1", | |
82 | "Track2", | |
83 | }; | |
84 | ||
85 | static struct lps_modelspec models[] = { | |
86 | { LPS_UNKNOWN, "Dummy", 0, | |
87 | { | |
88 | ||
89 | } | |
90 | }, | |
91 | { LPS_301, "LPS-301", 1, | |
92 | { | |
93 | /* Channel 1 */ | |
94 | { { 0, 32, 0.01 }, { 0.005, 2, 0.001 } }, | |
95 | }, | |
96 | }, | |
97 | { LPS_302, "LPS-302", 1, | |
98 | { | |
99 | /* Channel 1 */ | |
100 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
101 | }, | |
102 | }, | |
103 | { LPS_303, "LPS-303", 1, | |
104 | { | |
105 | /* Channel 1 */ | |
106 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
107 | }, | |
108 | }, | |
109 | { LPS_304, "LPS-304", 3, | |
110 | { | |
111 | /* Channel 1 */ | |
112 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
113 | /* Channel 2 */ | |
114 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
115 | /* Channel 3 */ | |
116 | { { 5, 5, 0.0 }, { 0.005, 3, 0.001 } }, | |
117 | }, | |
118 | }, | |
119 | { LPS_305, "LPS-305", 3, | |
120 | { | |
121 | /* Channel 1 */ | |
122 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
123 | /* Channel 2 */ | |
124 | { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } }, | |
125 | /* Channel 3 */ | |
126 | { { 3.3, 5, 1.7 }, { 0.005, 3, 0.001 } }, | |
127 | }, | |
128 | }, | |
129 | }; | |
41b7bd01 | 130 | |
1c3d002b | 131 | static int init_lps301(struct sr_context *sr_ctx) |
41b7bd01 | 132 | { |
1c3d002b | 133 | return std_init(sr_ctx, &motech_lps_301_driver_info, LOG_PREFIX); |
41b7bd01 MH |
134 | } |
135 | ||
1c3d002b MH |
136 | /** Send command to device with va_list. |
137 | */ | |
138 | SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char* fmt, va_list args) | |
41b7bd01 | 139 | { |
1c3d002b MH |
140 | int retc; |
141 | char auxfmt[LINELEN_MAX]; | |
142 | char buf[LINELEN_MAX]; | |
41b7bd01 | 143 | |
1c3d002b MH |
144 | snprintf(auxfmt, sizeof(auxfmt), "%s\r\n", fmt); |
145 | vsnprintf(buf, sizeof(buf), auxfmt, args); | |
41b7bd01 | 146 | |
1c3d002b | 147 | sr_spew("lps_send_va: \"%s\"", buf); |
41b7bd01 | 148 | |
1c3d002b | 149 | retc = serial_write_nonblocking(serial, buf, strlen(buf)); |
41b7bd01 | 150 | |
1c3d002b MH |
151 | if (retc < 0) |
152 | return SR_ERR; | |
153 | ||
154 | return SR_OK; | |
41b7bd01 MH |
155 | } |
156 | ||
1c3d002b MH |
157 | /** Send command to device. |
158 | */ | |
159 | SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char* fmt, ...) | |
41b7bd01 | 160 | { |
1c3d002b MH |
161 | int retc; |
162 | va_list args; | |
163 | ||
164 | va_start(args, fmt); | |
165 | retc = lps_send_va(serial, fmt, args); | |
166 | va_end(args); | |
167 | ||
168 | return retc; | |
41b7bd01 MH |
169 | } |
170 | ||
1c3d002b MH |
171 | /** Send command and consume simple OK reply. */ |
172 | SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char* fmt, ...) | |
41b7bd01 | 173 | { |
1c3d002b MH |
174 | int retc; |
175 | va_list args; | |
176 | char buf[LINELEN_MAX]; | |
177 | char* bufptr; | |
178 | int buflen; | |
179 | ||
180 | /* Send command */ | |
181 | va_start(args, fmt); | |
182 | retc = lps_send_va(serial, fmt, args); | |
183 | va_end(args); | |
184 | ||
185 | if (retc != SR_OK) | |
186 | return SR_ERR; | |
187 | ||
188 | /* Read reply */ | |
189 | buf[0] = '\0'; | |
190 | bufptr = buf; | |
191 | buflen = sizeof(buf); | |
192 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
193 | if ((retc == SR_OK) && (buflen == 0)) | |
194 | return SR_OK; | |
195 | ||
196 | return SR_ERR; | |
41b7bd01 MH |
197 | } |
198 | ||
1c3d002b MH |
199 | /** Send command and read reply string. |
200 | * \param reply Pointer to buffer of size LINELEN_MAX. Will be NUL-terminated. | |
201 | */ | |
202 | SR_PRIV int lps_cmd_reply(char* reply, struct sr_serial_dev_inst *serial, const char* fmt, ...) | |
41b7bd01 | 203 | { |
1c3d002b MH |
204 | int retc; |
205 | va_list args; | |
206 | char buf[LINELEN_MAX]; | |
207 | char* bufptr; | |
208 | int buflen; | |
209 | ||
210 | reply[0] = '\0'; | |
211 | ||
212 | /* Send command */ | |
213 | va_start(args, fmt); | |
214 | retc = lps_send_va(serial, fmt, args); | |
215 | va_end(args); | |
216 | ||
217 | if (retc != SR_OK) | |
218 | return SR_ERR; | |
219 | ||
220 | /* Read reply */ | |
221 | buf[0] = '\0'; | |
222 | bufptr = buf; | |
223 | buflen = sizeof(buf); | |
224 | retc = lps_read_reply(serial, &bufptr, &buflen); | |
225 | if ((retc == SR_OK) && (buflen > 0)) { | |
226 | strcpy(reply, buf); | |
227 | return SR_OK; | |
228 | } | |
41b7bd01 | 229 | |
1c3d002b MH |
230 | return SR_ERR; |
231 | } | |
41b7bd01 | 232 | |
1c3d002b MH |
233 | /** Process integer value returned by STATUS command. */ |
234 | SR_PRIV int lps_process_status(struct sr_dev_inst* sdi, int stat) | |
235 | { | |
236 | struct dev_context* devc; | |
237 | int tracking_mode; | |
238 | ||
239 | devc = (struct dev_context*)sdi->priv; | |
240 | ||
241 | sr_spew("Status: %d", stat); | |
242 | devc->channel_status[0].cc_mode = (stat & 0x01) != 0; | |
243 | sr_spew("Channel 1 %s mode", devc->channel_status[0].cc_mode?"CC":"CV"); | |
244 | if (devc->model->num_channels > 1) { | |
245 | devc->channel_status[1].cc_mode = (stat & 0x02) != 0; | |
246 | sr_spew("Channel 2 %s mode", devc->channel_status[1].cc_mode?"CC":"CV"); | |
247 | ||
248 | tracking_mode = (stat & 0x0c) >> 2; | |
249 | switch (tracking_mode) { | |
250 | case 0: devc->tracking_mode = 0; | |
251 | break; | |
252 | case 2: devc->tracking_mode = 1; | |
253 | break; | |
254 | case 3: devc->tracking_mode = 2; | |
255 | break; | |
256 | default: | |
257 | sr_err("Illegal channel tracking mode %d!", tracking_mode); | |
258 | devc->tracking_mode = 0; | |
259 | break; | |
260 | } | |
261 | ||
262 | sr_spew("Channel tracking: %d", devc->tracking_mode); | |
263 | } | |
264 | devc->channel_status[0].output_enabled = devc->channel_status[1].output_enabled = stat&0x040?TRUE:FALSE; | |
265 | sr_spew("Channel 1%s output: %s", devc->model->num_channels > 1?"+2":"", devc->channel_status[0].output_enabled?"ON":"OFF"); | |
266 | if (devc->model->num_channels > 2) { | |
267 | devc->channel_status[2].output_enabled = stat&0x010?TRUE:FALSE; | |
268 | devc->channel_status[2].output_voltage_last = stat&0x020?3.3:5; | |
269 | sr_spew("Channel 3 output: %s, U=%02f V, overload=%d", | |
270 | devc->channel_status[2].output_enabled?"ON":"OFF", | |
271 | devc->channel_status[2].output_voltage_last, | |
272 | stat&0x080?1:0); | |
273 | } | |
274 | sr_spew("Fan=%d, beep=%d, CC output compensated=%d", stat&0x0100?1:0, stat&0x0200?1:0, stat&0x0400?1:0); | |
41b7bd01 MH |
275 | |
276 | return SR_OK; | |
277 | } | |
278 | ||
1c3d002b MH |
279 | /** Send STATUS commend and process status string. */ |
280 | SR_PRIV int lps_query_status(struct sr_dev_inst* sdi) | |
41b7bd01 | 281 | { |
1c3d002b MH |
282 | char buf[LINELEN_MAX]; |
283 | int stat; | |
1c3d002b | 284 | struct dev_context* devc; |
41b7bd01 | 285 | |
1c3d002b | 286 | devc = (struct dev_context*)sdi->priv; |
41b7bd01 | 287 | |
1c3d002b | 288 | devc->req_sent_at = g_get_real_time(); |
41b7bd01 | 289 | |
1c3d002b MH |
290 | if (lps_cmd_reply(buf, sdi->conn, "STATUS") < 0) { |
291 | sr_err("%s: Failed to read status: %d %s", __func__, errno, strerror(errno)); | |
292 | return SR_ERR; | |
293 | } | |
294 | ||
1f7da0c2 | 295 | if (sr_atoi(buf, &stat) != SR_OK) |
1c3d002b MH |
296 | return SR_ERR; |
297 | ||
298 | return lps_process_status(sdi, stat); | |
41b7bd01 MH |
299 | } |
300 | ||
1c3d002b | 301 | static gint64 calc_timeout_ms(gint64 start_us) |
41b7bd01 | 302 | { |
1c3d002b | 303 | gint64 result = REQ_TIMEOUT_MS - ((g_get_real_time() - start_us) / 1000); |
41b7bd01 | 304 | |
1c3d002b MH |
305 | if (result < 0) |
306 | return 0; | |
41b7bd01 | 307 | |
1c3d002b | 308 | return result; |
41b7bd01 MH |
309 | } |
310 | ||
1c3d002b MH |
311 | /** Read message into buf until "OK" received. |
312 | * \retval SR_OK Msg received; buf and buflen contain result, if any except OK. | |
313 | * \retval SR_ERR Error, including timeout. | |
314 | */ | |
315 | SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen) | |
41b7bd01 | 316 | { |
1c3d002b MH |
317 | int retries; |
318 | char buf2[LINELEN_MAX]; | |
319 | char *buf2ptr; | |
320 | int buf2len; | |
321 | gint64 timeout_start; | |
322 | ||
323 | *buf[0] = '\0'; | |
324 | ||
325 | /* Read one line. It is either a data message or "OK". */ | |
326 | timeout_start = g_get_real_time(); | |
327 | buf2len = *buflen; | |
328 | /* Up to 5 tries because serial_readline() will consume only one CR or LF per | |
329 | * call, but device sends up to 4 in a row. */ | |
330 | for (retries = 0; retries < 5; retries++) { | |
331 | *buflen = buf2len; | |
332 | if (serial_readline(serial, buf, buflen, calc_timeout_ms(timeout_start)) != SR_OK) | |
333 | return SR_ERR; | |
334 | if (!strcmp(*buf, "OK")) { /* We got an OK! */ | |
335 | *buf[0] = '\0'; | |
336 | *buflen = 0; | |
337 | return SR_OK; | |
338 | } | |
339 | if (*buflen > 0) /* We got a msg! */ | |
340 | break; | |
341 | } | |
41b7bd01 | 342 | |
1c3d002b MH |
343 | /* A data msg is in buf (possibly ERROR), need to consume "OK". */ |
344 | buf2[0] = '\0'; | |
345 | buf2ptr = buf2; | |
346 | for (retries = 0; retries < 5; retries++) { | |
347 | buf2len = sizeof(buf2); | |
348 | if (serial_readline(serial, &buf2ptr, &buf2len, calc_timeout_ms(timeout_start)) != SR_OK) | |
349 | return SR_ERR; | |
350 | ||
351 | if (!strcmp(buf2ptr, "OK")) { /* We got an OK! */ | |
352 | if (!strcmp(*buf, "ERROR")) { /* OK came after msg ERROR! */ | |
353 | sr_spew("ERROR found!"); | |
354 | *buf[0] = '\0'; | |
355 | *buflen = 0; | |
356 | return SR_ERR; | |
357 | } | |
358 | return SR_OK; | |
359 | } | |
360 | } | |
41b7bd01 | 361 | |
1c3d002b MH |
362 | return SR_ERR; /* Timeout! */ |
363 | } | |
364 | ||
365 | /** Scan for LPS-300 series device. | |
366 | */ | |
1f7da0c2 | 367 | static GSList *do_scan(lps_modelid modelid, struct sr_dev_driver *drv, GSList *options) |
1c3d002b MH |
368 | { |
369 | struct sr_dev_inst *sdi; | |
370 | struct drv_context *drvc; | |
371 | struct dev_context *devc; | |
372 | struct sr_serial_dev_inst *serial; | |
373 | struct sr_channel *ch; | |
374 | struct sr_channel_group *cg; | |
375 | GSList *devices; | |
376 | const char *conn, *serialcomm; | |
377 | int cnt; | |
378 | gchar buf[LINELEN_MAX]; | |
379 | gchar channel[10]; | |
380 | char* verstr; | |
381 | ||
382 | sdi = NULL; | |
383 | devc = NULL; | |
384 | conn = serialcomm = NULL; | |
385 | devices = NULL; | |
386 | ||
387 | drvc = drv->priv; | |
388 | drvc->instances = NULL; | |
389 | ||
390 | sr_spew("scan() called!"); | |
391 | ||
392 | /* Process and check options. */ | |
393 | if (sr_serial_extract_options(options, &conn, &serialcomm) != SR_OK) | |
394 | return NULL; | |
395 | if (!serialcomm) | |
396 | serialcomm = SERIALCOMM; | |
397 | ||
398 | /* Init serial port. */ | |
399 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) | |
400 | return NULL; | |
401 | ||
402 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) | |
403 | goto exit_err; | |
404 | ||
405 | /* Query and verify model string. */ | |
406 | serial_flush(serial); | |
407 | if (lps_cmd_reply(buf, serial, "MODEL") != SR_OK) | |
408 | return NULL; | |
409 | ||
410 | /* Check model string. */ | |
411 | if (strncmp(buf, "LPS-", 4)) { | |
412 | sr_spew("Unknown model code \"%s\"!", buf); | |
413 | return NULL; | |
414 | } | |
415 | ||
416 | /* Bug in device FW 1.17, model number is empty, so this can't work with this FW! */ | |
417 | if (modelid == LPS_UNKNOWN) { | |
418 | g_strstrip(buf); | |
419 | for (cnt = LPS_301; cnt <= LPS_305; cnt++) { | |
420 | if (!strcmp(buf, models[cnt].modelstr)) { | |
421 | modelid = cnt; | |
422 | break; | |
423 | } | |
424 | } | |
425 | if (modelid == LPS_UNKNOWN) { | |
426 | sr_err("Unable to detect model from model string '%s'!", buf); | |
427 | return NULL; | |
428 | } | |
41b7bd01 MH |
429 | } |
430 | ||
1c3d002b MH |
431 | /* Query version */ |
432 | verstr = NULL; | |
433 | if (lps_cmd_reply(buf, serial, "VERSION") == SR_OK) { | |
434 | if (strncmp(buf, "Ver-", 4)) { | |
435 | sr_spew("Version string %s not recognized.", buf); | |
436 | goto exit_err; | |
437 | } | |
438 | ||
439 | ||
440 | g_strstrip(buf); | |
441 | verstr = buf + 4; | |
442 | } | |
443 | else /* Bug in device FW 1.17: Quering version string fails while output is active. | |
444 | Therefore just print an error message, but do not exit with error. */ | |
445 | sr_err("Failed to query for hardware version: %d %s", errno, strerror(errno)); | |
446 | ||
447 | sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, VENDOR_MOTECH, models[modelid].modelstr, verstr); | |
448 | sdi->driver = drv; | |
449 | sdi->inst_type = SR_INST_SERIAL; | |
450 | sdi->conn = serial; | |
451 | ||
452 | devc = g_malloc0(sizeof(struct dev_context)); | |
453 | devc->model = &models[modelid]; | |
454 | devc->limit_samples = 0; | |
455 | devc->limit_msec = 0; | |
456 | devc->num_samples = 0; | |
457 | devc->elapsed_msec = g_timer_new(); | |
458 | ||
459 | sdi->priv = devc; | |
460 | ||
461 | /* Setup channels and channel groups. */ | |
462 | for (cnt = 0; cnt < models[modelid].num_channels; cnt++) { | |
463 | snprintf(channel, sizeof(channel), "CH%d", cnt + 1); | |
464 | ch = sr_channel_new(cnt, SR_CHANNEL_ANALOG, TRUE, channel); | |
465 | sdi->channels = g_slist_append(sdi->channels, ch); | |
466 | ||
467 | devc->channel_status[cnt].info = g_slist_append(NULL, ch); | |
468 | ||
469 | cg = g_malloc(sizeof(struct sr_channel_group)); | |
470 | snprintf(channel, sizeof(channel), "CG%d", cnt+1); | |
471 | cg->name = g_strdup(channel); | |
472 | cg->priv = NULL; | |
473 | cg->channels = g_slist_append(NULL, ch); | |
474 | ||
475 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); | |
476 | } | |
477 | ||
478 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
479 | devices = g_slist_append(devices, sdi); | |
480 | ||
481 | /* Query status */ | |
482 | if (lps_query_status(sdi) != SR_OK) | |
483 | goto exit_err; | |
484 | ||
485 | serial_close(serial); | |
486 | if (!devices) | |
487 | sr_serial_dev_inst_free(serial); | |
488 | ||
489 | return devices; | |
490 | ||
491 | exit_err: | |
492 | sr_info("%s: Error!", __func__); | |
493 | ||
494 | if (serial) { | |
495 | serial_close(serial); | |
496 | sr_serial_dev_inst_free(serial); | |
497 | } | |
498 | if (devc) | |
499 | g_free(devc); | |
500 | if (sdi) | |
501 | sr_dev_inst_free(sdi); | |
502 | ||
503 | return NULL; | |
41b7bd01 MH |
504 | } |
505 | ||
1c3d002b MH |
506 | /** Scan for LPS-301 device. */ |
507 | static GSList *scan_lps301(GSList *options) | |
508 | { | |
1f7da0c2 | 509 | return do_scan(LPS_301, &motech_lps_301_driver_info, options); |
1c3d002b MH |
510 | } |
511 | ||
512 | static GSList *doDevList(struct sr_dev_driver *drv) | |
513 | { | |
514 | return ((struct drv_context *)(drv->priv))->instances; | |
515 | } | |
516 | ||
517 | static GSList *dev_list_lps301(void) | |
518 | { | |
519 | return doDevList(&motech_lps_301_driver_info); | |
520 | } | |
521 | ||
522 | static void dev_clear_private(struct dev_context* devc) | |
523 | { | |
524 | int ch_idx; | |
525 | ||
526 | /* Free channel_status.info (list only, data owned by sdi). */ | |
527 | for (ch_idx = 0; ch_idx < devc->model->num_channels; ch_idx++) | |
528 | g_slist_free(devc->channel_status[ch_idx].info); | |
529 | ||
530 | g_timer_destroy(devc->elapsed_msec); | |
531 | } | |
532 | ||
533 | static int dev_clear_lps301(void) | |
534 | { | |
535 | return std_dev_clear(&motech_lps_301_driver_info, (std_dev_clear_callback)dev_clear_private); | |
536 | } | |
537 | ||
538 | static int cleanup(void) | |
539 | { | |
540 | return dev_clear_lps301(); | |
541 | } | |
542 | ||
543 | static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
41b7bd01 MH |
544 | const struct sr_channel_group *cg) |
545 | { | |
1c3d002b MH |
546 | struct dev_context *devc; |
547 | struct sr_channel *ch; | |
548 | int ch_idx; | |
549 | ||
550 | if (!sdi) | |
551 | return SR_ERR_ARG; | |
552 | ||
553 | devc = sdi->priv; | |
554 | ||
555 | if (!cg) { | |
556 | /* No channel group: global options. */ | |
557 | switch (key) { | |
558 | case SR_CONF_LIMIT_SAMPLES: | |
559 | *data = g_variant_new_uint64(devc->limit_samples); | |
560 | break; | |
561 | case SR_CONF_LIMIT_MSEC: | |
562 | *data = g_variant_new_uint64(devc->limit_msec); | |
563 | break; | |
564 | case SR_CONF_OUTPUT_CHANNEL: | |
565 | *data = g_variant_new_string(channel_modes[devc->tracking_mode]); | |
566 | break; | |
567 | default: | |
568 | return SR_ERR_NA; | |
569 | } | |
570 | } else { | |
571 | /* We only ever have one channel per channel group in this driver. */ | |
572 | ch = cg->channels->data; | |
573 | ch_idx = ch->index; | |
574 | switch (key) { | |
575 | case SR_CONF_OUTPUT_VOLTAGE: | |
576 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_last); | |
577 | break; | |
578 | case SR_CONF_OUTPUT_VOLTAGE_MAX: | |
579 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_max); | |
580 | break; | |
581 | case SR_CONF_OUTPUT_CURRENT: | |
582 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_last); | |
583 | break; | |
584 | case SR_CONF_OUTPUT_CURRENT_MAX: | |
585 | *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_max); | |
586 | break; | |
587 | case SR_CONF_OUTPUT_ENABLED: | |
588 | *data = g_variant_new_boolean(devc->channel_status[ch_idx].output_enabled); | |
589 | break; | |
590 | default: | |
591 | return SR_ERR_NA; | |
592 | } | |
593 | } | |
41b7bd01 | 594 | |
1c3d002b MH |
595 | return SR_OK; |
596 | } | |
597 | ||
598 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, | |
599 | const struct sr_channel_group *cg) | |
600 | { | |
601 | struct dev_context *devc; | |
602 | struct sr_channel *ch; | |
603 | gdouble dval; | |
604 | int ch_idx; | |
605 | const char *sval; | |
606 | gboolean bval; | |
607 | int idx; | |
608 | gboolean found; | |
41b7bd01 MH |
609 | |
610 | if (sdi->status != SR_ST_ACTIVE) | |
611 | return SR_ERR_DEV_CLOSED; | |
612 | ||
1c3d002b MH |
613 | devc = sdi->priv; |
614 | ||
419bfb50 | 615 | /* Cannot change settings while acquisition active, would cause a mess with commands. |
1c3d002b MH |
616 | * Changing this would be possible, but tricky. */ |
617 | if (devc->acq_running) | |
618 | return SR_ERR_NA; | |
619 | ||
620 | if (!cg) { | |
621 | /* No channel group: global options. */ | |
622 | switch (key) { | |
623 | case SR_CONF_LIMIT_MSEC: | |
624 | if (g_variant_get_uint64(data) == 0) { | |
625 | sr_err("LIMIT_MSEC can't be 0."); | |
626 | return SR_ERR; | |
627 | } | |
628 | devc->limit_msec = g_variant_get_uint64(data); | |
629 | sr_dbg("Setting time limit to %" PRIu64 "ms.", | |
630 | devc->limit_msec); | |
631 | break; | |
632 | case SR_CONF_LIMIT_SAMPLES: | |
633 | devc->limit_samples = g_variant_get_uint64(data); | |
634 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
635 | devc->limit_samples); | |
636 | break; | |
637 | case SR_CONF_OUTPUT_CHANNEL: | |
638 | sval = g_variant_get_string(data, NULL); | |
639 | found = FALSE; | |
640 | for (idx = 0; idx < (int)ARRAY_SIZE(channel_modes); idx++) | |
641 | { | |
642 | if (!strcmp(sval, channel_modes[idx])) { | |
643 | found = TRUE; | |
644 | if (devc->tracking_mode == idx) | |
645 | break; /* Nothing to do! */ | |
646 | devc->tracking_mode = idx; | |
647 | if (devc->model->modelid >= LPS_304) /* No use to set anything in the smaller models. */ | |
648 | return lps_cmd_ok(sdi->conn, "TRACK%1d", devc->tracking_mode); | |
649 | } | |
650 | if (devc->model->modelid <= LPS_303) /* Only first setting possible for smaller models. */ | |
651 | break; | |
652 | } | |
653 | if (!found) { | |
654 | return SR_ERR_ARG; | |
655 | } | |
656 | break; | |
657 | default: | |
658 | return SR_ERR_NA; | |
659 | } | |
660 | } else { | |
661 | /* Channel group specified: per-channel options. */ | |
662 | /* We only ever have one channel per channel group in this driver. */ | |
663 | ch = cg->channels->data; | |
664 | ch_idx = ch->index; | |
665 | ||
666 | switch (key) { | |
667 | case SR_CONF_OUTPUT_VOLTAGE_MAX: | |
668 | dval = g_variant_get_double(data); | |
669 | if (dval < 0 || dval > devc->model->channels[ch_idx].voltage[1]) | |
670 | return SR_ERR_ARG; | |
671 | if (ch_idx == 2) { | |
672 | if (devc->model->modelid < LPS_304) | |
673 | return SR_ERR_ARG; | |
674 | ||
675 | if (fabs(dval - 5.000) <= 0.001) | |
676 | dval = 5.0; | |
677 | else if ((devc->model->modelid >= LPS_305) && (fabs(dval - 3.300) <= 0.001)) | |
678 | dval = 3.3; | |
679 | else return SR_ERR_ARG; | |
680 | } | |
681 | ||
682 | devc->channel_status[ch_idx].output_voltage_max = dval; | |
683 | if (ch_idx == 2) | |
684 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", trunc(dval)); | |
685 | else | |
686 | return lps_cmd_ok(sdi->conn, "VSET%d %05.3f", ch_idx+1, dval); | |
687 | break; | |
688 | case SR_CONF_OUTPUT_CURRENT_MAX: | |
689 | dval = g_variant_get_double(data); | |
690 | if (dval < 0 || dval > devc->model->channels[ch_idx].current[1]) | |
691 | return SR_ERR_ARG; | |
692 | if (ch_idx == 2) /* No current setting for CH3. */ | |
693 | return SR_ERR_NA; | |
694 | devc->channel_status[ch_idx].output_current_max = dval; | |
695 | return lps_cmd_ok(sdi->conn, "ISET%d %05.4f", ch_idx+1, dval); | |
696 | break; | |
697 | case SR_CONF_OUTPUT_ENABLED: | |
698 | bval = g_variant_get_boolean(data); | |
699 | if (bval == devc->channel_status[ch_idx].output_enabled) /* Nothing to do. */ | |
700 | break; | |
701 | devc->channel_status[ch_idx].output_enabled = bval; | |
702 | if (ch_idx != 2) { /* Channels 1,2 can be set only together. */ | |
703 | devc->channel_status[ch_idx^1].output_enabled = bval; | |
704 | return lps_cmd_ok(sdi->conn, "OUT%1d", (int)bval); | |
705 | } else { /* Channel 3: No command to disable output, set voltage to 0 instead. */ | |
706 | if (bval) | |
707 | return lps_cmd_ok(sdi->conn, "VDD%1.0f", devc->channel_status[ch_idx].output_voltage_max); | |
708 | else | |
709 | return lps_cmd_ok(sdi->conn, "VDD0"); | |
710 | } | |
711 | break; | |
712 | default: | |
713 | return SR_ERR_NA; | |
714 | } | |
41b7bd01 MH |
715 | } |
716 | ||
1c3d002b | 717 | return SR_OK; |
41b7bd01 MH |
718 | } |
719 | ||
720 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
721 | const struct sr_channel_group *cg) | |
722 | { | |
1c3d002b MH |
723 | struct dev_context *devc; |
724 | struct sr_channel *ch; | |
725 | int ch_idx, i; | |
726 | GVariant *gvar; | |
727 | GVariantBuilder gvb; | |
41b7bd01 | 728 | |
41b7bd01 | 729 | (void)data; |
41b7bd01 | 730 | |
1c3d002b | 731 | /* Driver options, no device instance necessary. */ |
41b7bd01 | 732 | switch (key) { |
1c3d002b MH |
733 | case SR_CONF_SCAN_OPTIONS: |
734 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
735 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
736 | return SR_OK; | |
737 | default: | |
738 | if (sdi == NULL) | |
739 | return SR_ERR_ARG; | |
740 | ||
741 | devc = sdi->priv; | |
742 | } | |
743 | ||
744 | /* Device options, independant from channel groups. */ | |
745 | if (cg == NULL) { | |
746 | switch (key) { | |
747 | case SR_CONF_DEVICE_OPTIONS: | |
748 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
749 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
750 | return SR_OK; | |
751 | case SR_CONF_OUTPUT_CHANNEL: | |
752 | if (devc->model->modelid <= LPS_303) { | |
753 | /* The 1-channel models. */ | |
754 | *data = g_variant_new_strv(channel_modes, 1); | |
755 | } else { | |
756 | /* The other models support all modes. */ | |
757 | *data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes)); | |
758 | } | |
759 | return SR_OK; | |
760 | break; | |
761 | default: | |
762 | return SR_ERR_NA; | |
763 | } | |
764 | } | |
765 | ||
766 | /* Device options, depending on channel groups. */ | |
767 | ch = cg->channels->data; | |
768 | ch_idx = ch->index; | |
769 | switch (key) { | |
770 | case SR_CONF_DEVICE_OPTIONS: | |
771 | if ((ch_idx == 0) || (ch_idx == 1)) /* CH1, CH2 */ | |
772 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
773 | hwcaps_ch12, ARRAY_SIZE(hwcaps_ch12), sizeof(int32_t)); | |
774 | else /* Must be CH3 */ | |
775 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
776 | hwcaps_ch3, ARRAY_SIZE(hwcaps_ch3), sizeof(int32_t)); | |
777 | break; | |
778 | case SR_CONF_OUTPUT_VOLTAGE_MAX: | |
779 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
780 | /* Min, max, step. */ | |
781 | for (i = 0; i < 3; i++) { | |
782 | gvar = g_variant_new_double(devc->model->channels[ch_idx].voltage[i]); | |
783 | g_variant_builder_add_value(&gvb, gvar); | |
784 | } | |
785 | *data = g_variant_builder_end(&gvb); | |
786 | break; | |
787 | case SR_CONF_OUTPUT_CURRENT_MAX: | |
788 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
789 | /* Min, max, step. */ | |
790 | for (i = 0; i < 3; i++) { | |
791 | gvar = g_variant_new_double(devc->model->channels[ch_idx].current[i]); | |
792 | g_variant_builder_add_value(&gvb, gvar); | |
793 | } | |
794 | *data = g_variant_builder_end(&gvb); | |
795 | break; | |
41b7bd01 MH |
796 | default: |
797 | return SR_ERR_NA; | |
798 | } | |
799 | ||
1c3d002b | 800 | return SR_OK; |
41b7bd01 MH |
801 | } |
802 | ||
803 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
804 | void *cb_data) | |
805 | { | |
1c3d002b MH |
806 | struct dev_context *devc; |
807 | struct sr_serial_dev_inst *serial; | |
41b7bd01 MH |
808 | |
809 | if (sdi->status != SR_ST_ACTIVE) | |
810 | return SR_ERR_DEV_CLOSED; | |
811 | ||
1c3d002b MH |
812 | devc = sdi->priv; |
813 | ||
814 | devc->acq_running = TRUE; | |
815 | ||
816 | serial = sdi->conn; | |
102f1239 BV |
817 | serial_source_add(sdi->session, serial, G_IO_IN, 50, |
818 | motech_lps_30x_receive_data, (void *)sdi); | |
1c3d002b MH |
819 | std_session_send_df_header(cb_data, LOG_PREFIX); |
820 | ||
821 | /* Start timer, if required. */ | |
822 | if (devc->limit_msec) | |
823 | g_timer_start(devc->elapsed_msec); | |
824 | ||
825 | devc->acq_req = AQ_NONE; | |
826 | /* Do not start polling device here, the read function will do it in 50 ms. */ | |
41b7bd01 MH |
827 | |
828 | return SR_OK; | |
829 | } | |
830 | ||
831 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
832 | { | |
1c3d002b | 833 | struct dev_context *devc; |
41b7bd01 | 834 | |
1c3d002b MH |
835 | /* Stop timer, if required. */ |
836 | if (sdi && (devc = sdi->priv) && devc->limit_msec) | |
837 | g_timer_stop(devc->elapsed_msec); | |
41b7bd01 | 838 | |
1c3d002b MH |
839 | return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close, |
840 | sdi->conn, LOG_PREFIX); | |
41b7bd01 MH |
841 | } |
842 | ||
843 | SR_PRIV struct sr_dev_driver motech_lps_301_driver_info = { | |
844 | .name = "motech-lps-301", | |
845 | .longname = "Motech LPS-301", | |
846 | .api_version = 1, | |
1c3d002b | 847 | .init = init_lps301, |
41b7bd01 | 848 | .cleanup = cleanup, |
1c3d002b MH |
849 | .scan = scan_lps301, |
850 | .dev_list = dev_list_lps301, | |
851 | .dev_clear = dev_clear_lps301, | |
41b7bd01 MH |
852 | .config_get = config_get, |
853 | .config_set = config_set, | |
854 | .config_list = config_list, | |
1c3d002b MH |
855 | .dev_open = std_serial_dev_open, |
856 | .dev_close = std_serial_dev_close, | |
41b7bd01 MH |
857 | .dev_acquisition_start = dev_acquisition_start, |
858 | .dev_acquisition_stop = dev_acquisition_stop, | |
859 | .priv = NULL, | |
860 | }; |