]> sigrok.org Git - libsigrok.git/blame - src/hardware/cem-dt-885x/api.c
Change sr_dev_inst_new() to take no parameters.
[libsigrok.git] / src / hardware / cem-dt-885x / api.c
CommitLineData
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1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
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
be733919 20#include <string.h>
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21#include "protocol.h"
22
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23#define SERIALCOMM "9600/8n1"
24/* 23ms is the longest interval between tokens. */
25#define MAX_SCAN_TIME 25 * 1000
26
a0e0bb41 27static const uint32_t scanopts[] = {
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28 SR_CONF_CONN,
29};
30
f254bc4b 31static const uint32_t devopts[] = {
7fb8279c 32 SR_CONF_SOUNDLEVELMETER,
7fb8279c 33 SR_CONF_CONTINUOUS,
5827f61b 34 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
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35};
36
37static const uint32_t devopts_global[] = {
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38 SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
39 SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
40 SR_CONF_SPL_MEASUREMENT_RANGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
41 SR_CONF_DATALOG | SR_CONF_GET | SR_CONF_SET,
42 SR_CONF_HOLD_MAX | SR_CONF_GET | SR_CONF_SET,
43 SR_CONF_HOLD_MIN | SR_CONF_GET | SR_CONF_SET,
44 SR_CONF_POWER_OFF | SR_CONF_GET | SR_CONF_SET,
45 SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
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46};
47
be733919
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48static const char *weight_freq[] = {
49 "A",
50 "C",
51};
7fb8279c 52
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53static const char *weight_time[] = {
54 "F",
55 "S",
56};
57
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58static const uint64_t meas_ranges[][2] = {
59 { 30, 130 },
60 { 30, 80 },
61 { 50, 100 },
62 { 80, 130 },
63};
64
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65static const char *data_sources[] = {
66 "Live",
67 "Memory",
68};
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69SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
70static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
71
72
73static int init(struct sr_context *sr_ctx)
74{
75 return std_init(sr_ctx, di, LOG_PREFIX);
76}
77
78static GSList *scan(GSList *options)
79{
80 struct drv_context *drvc;
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81 struct dev_context *devc;
82 struct sr_config *src;
83 struct sr_serial_dev_inst *serial;
84 struct sr_dev_inst *sdi;
ba7dd8bb 85 struct sr_channel *ch;
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86 GSList *l, *devices;
87 gint64 start;
88 const char *conn;
89 unsigned char c;
90
91 conn = NULL;
92 for (l = options; l; l = l->next) {
93 src = l->data;
94 if (src->key == SR_CONF_CONN)
95 conn = g_variant_get_string(src->data, NULL);
96 }
97 if (!conn)
98 return NULL;
99
100 if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
101 return NULL;
8fa9368e 102
d7b269da 103 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
7fb8279c 104 return NULL;
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105
106 devices = NULL;
107 drvc = di->priv;
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108 start = g_get_monotonic_time();
109 while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
d7b269da 110 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
7fb8279c 111 /* Found one. */
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112 sdi = sr_dev_inst_new();
113 sdi->status = SR_ST_INACTIVE;
114 sdi->vendor = g_strdup("CEM");
115 sdi->model = g_strdup("DT-885x");
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116
117 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
118 sr_dbg("Device context malloc failed.");
119 return NULL;
120 }
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121 devc->cur_mqflags = 0;
122 devc->recording = -1;
f157b2ee 123 devc->cur_meas_range = 0;
662172d4 124 devc->cur_data_source = DATA_SOURCE_LIVE;
cea26f6e 125 devc->enable_data_source_memory = FALSE;
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126
127 if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
128 return NULL;
129
130 sdi->inst_type = SR_INST_SERIAL;
131 sdi->priv = devc;
132 sdi->driver = di;
3f239f08 133 if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL")))
7fb8279c 134 return NULL;
ba7dd8bb 135 sdi->channels = g_slist_append(sdi->channels, ch);
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136 drvc->instances = g_slist_append(drvc->instances, sdi);
137 devices = g_slist_append(devices, sdi);
138 break;
139 }
140 /* It takes about 1ms for a byte to come in. */
141 g_usleep(1000);
142 }
8fa9368e 143
7fb8279c 144 serial_close(serial);
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145
146 return devices;
147}
148
149static GSList *dev_list(void)
150{
ce4d26dd 151 return ((struct drv_context *)(di->priv))->instances;
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152}
153
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154static int dev_open(struct sr_dev_inst *sdi)
155{
7fb8279c 156 struct sr_serial_dev_inst *serial;
8fa9368e 157
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158 serial = sdi->conn;
159 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
160 return SR_ERR;
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161
162 sdi->status = SR_ST_ACTIVE;
163
164 return SR_OK;
165}
166
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167static int cleanup(void)
168{
a6630742 169 return std_dev_clear(di, NULL);
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170}
171
584560f1 172static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 173 const struct sr_channel_group *cg)
8fa9368e 174{
7fb8279c 175 struct dev_context *devc;
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176 GVariant *range[2];
177 uint64_t low, high;
a90e480c 178 int tmp, ret;
8fa9368e 179
53b4680f 180 (void)cg;
d3c74a6f 181
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182 if (!sdi)
183 return SR_ERR_ARG;
8fa9368e 184
7fb8279c 185 devc = sdi->priv;
a90e480c 186 ret = SR_OK;
8fa9368e 187 switch (key) {
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188 case SR_CONF_LIMIT_SAMPLES:
189 *data = g_variant_new_uint64(devc->limit_samples);
190 break;
e1af0e85 191 case SR_CONF_DATALOG:
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192 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
193 *data = g_variant_new_boolean(tmp);
e1af0e85 194 break;
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195 case SR_CONF_SPL_WEIGHT_FREQ:
196 tmp = cem_dt_885x_weight_freq_get(sdi);
197 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
198 *data = g_variant_new_string("A");
199 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
200 *data = g_variant_new_string("C");
201 else
202 return SR_ERR;
203 break;
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204 case SR_CONF_SPL_WEIGHT_TIME:
205 tmp = cem_dt_885x_weight_time_get(sdi);
206 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
207 *data = g_variant_new_string("F");
208 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
209 *data = g_variant_new_string("S");
210 else
211 return SR_ERR;
212 break;
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213 case SR_CONF_HOLD_MAX:
214 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
215 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
216 break;
217 case SR_CONF_HOLD_MIN:
218 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
219 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
220 break;
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221 case SR_CONF_SPL_MEASUREMENT_RANGE:
222 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
223 range[0] = g_variant_new_uint64(low);
224 range[1] = g_variant_new_uint64(high);
225 *data = g_variant_new_tuple(range, 2);
226 }
227 break;
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228 case SR_CONF_POWER_OFF:
229 *data = g_variant_new_boolean(FALSE);
230 break;
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231 case SR_CONF_DATA_SOURCE:
232 if (devc->cur_data_source == DATA_SOURCE_LIVE)
233 *data = g_variant_new_string("Live");
234 else
235 *data = g_variant_new_string("Memory");
236 break;
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237 default:
238 return SR_ERR_NA;
239 }
240
a90e480c 241 return ret;
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242}
243
584560f1 244static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
53b4680f 245 const struct sr_channel_group *cg)
8fa9368e 246{
7fb8279c 247 struct dev_context *devc;
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248 uint64_t tmp_u64, low, high;
249 unsigned int i;
a90e480c 250 int tmp, ret;
be733919 251 const char *tmp_str;
8fa9368e 252
53b4680f 253 (void)cg;
d3c74a6f 254
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255 if (sdi->status != SR_ST_ACTIVE)
256 return SR_ERR_DEV_CLOSED;
257
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258 if (!(devc = sdi->priv)) {
259 sr_err("sdi->priv was NULL.");
260 return SR_ERR_BUG;
261 }
262
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263 ret = SR_OK;
264 switch (key) {
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265 case SR_CONF_LIMIT_SAMPLES:
266 tmp_u64 = g_variant_get_uint64(data);
267 devc->limit_samples = tmp_u64;
268 ret = SR_OK;
269 break;
e1af0e85 270 case SR_CONF_DATALOG:
0cd9107d 271 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
e1af0e85 272 break;
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273 case SR_CONF_SPL_WEIGHT_FREQ:
274 tmp_str = g_variant_get_string(data, NULL);
275 if (!strcmp(tmp_str, "A"))
276 ret = cem_dt_885x_weight_freq_set(sdi,
277 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
278 else if (!strcmp(tmp_str, "C"))
279 ret = cem_dt_885x_weight_freq_set(sdi,
280 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
281 else
282 return SR_ERR_ARG;
283 break;
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284 case SR_CONF_SPL_WEIGHT_TIME:
285 tmp_str = g_variant_get_string(data, NULL);
286 if (!strcmp(tmp_str, "F"))
287 ret = cem_dt_885x_weight_time_set(sdi,
288 SR_MQFLAG_SPL_TIME_WEIGHT_F);
289 else if (!strcmp(tmp_str, "S"))
290 ret = cem_dt_885x_weight_time_set(sdi,
291 SR_MQFLAG_SPL_TIME_WEIGHT_S);
292 else
293 return SR_ERR_ARG;
294 break;
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295 case SR_CONF_HOLD_MAX:
296 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
297 ret = cem_dt_885x_holdmode_set(sdi, tmp);
298 break;
299 case SR_CONF_HOLD_MIN:
300 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
301 ret = cem_dt_885x_holdmode_set(sdi, tmp);
302 break;
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303 case SR_CONF_SPL_MEASUREMENT_RANGE:
304 g_variant_get(data, "(tt)", &low, &high);
305 ret = SR_ERR_ARG;
306 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
307 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
308 ret = cem_dt_885x_meas_range_set(sdi, low, high);
309 break;
310 }
311 }
312 break;
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313 case SR_CONF_POWER_OFF:
314 if (g_variant_get_boolean(data))
315 ret = cem_dt_885x_power_off(sdi);
316 break;
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317 case SR_CONF_DATA_SOURCE:
318 tmp_str = g_variant_get_string(data, NULL);
319 if (!strcmp(tmp_str, "Live"))
320 devc->cur_data_source = DATA_SOURCE_LIVE;
321 else if (!strcmp(tmp_str, "Memory"))
322 devc->cur_data_source = DATA_SOURCE_MEMORY;
323 else
324 return SR_ERR;
cea26f6e 325 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
662172d4 326 break;
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327 default:
328 ret = SR_ERR_NA;
329 }
330
331 return ret;
332}
333
584560f1 334static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 335 const struct sr_channel_group *cg)
8fa9368e 336{
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337 GVariant *tuple, *range[2];
338 GVariantBuilder gvb;
339 unsigned int i;
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340 int ret;
341
53b4680f 342 (void)cg;
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343
344 ret = SR_OK;
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345 if (!sdi) {
346 switch (key) {
347 case SR_CONF_SCAN_OPTIONS:
348 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
349 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
350 break;
351 case SR_CONF_DEVICE_OPTIONS:
352 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
353 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
354 break;
355 default:
356 return SR_ERR_NA;
357 }
358 } else {
359 switch (key) {
360 case SR_CONF_DEVICE_OPTIONS:
361 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
362 devopts_global, ARRAY_SIZE(devopts_global), sizeof(uint32_t));
363 case SR_CONF_SPL_WEIGHT_FREQ:
364 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
365 break;
366 case SR_CONF_SPL_WEIGHT_TIME:
367 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
368 break;
369 case SR_CONF_SPL_MEASUREMENT_RANGE:
370 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
371 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
372 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
373 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
374 tuple = g_variant_new_tuple(range, 2);
375 g_variant_builder_add_value(&gvb, tuple);
376 }
377 *data = g_variant_builder_end(&gvb);
378 break;
379 case SR_CONF_DATA_SOURCE:
380 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
381 break;
382 default:
383 return SR_ERR_NA;
f157b2ee 384 }
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385 }
386
387 return ret;
388}
389
e37c4b39 390static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
8fa9368e 391{
e37c4b39
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392 struct dev_context *devc;
393 struct sr_serial_dev_inst *serial;
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394
395 if (sdi->status != SR_ST_ACTIVE)
396 return SR_ERR_DEV_CLOSED;
397
e37c4b39
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398 if (!(devc = sdi->priv)) {
399 sr_err("sdi->priv was NULL.");
400 return SR_ERR_BUG;
401 }
402
403 devc->cb_data = cb_data;
404 devc->state = ST_INIT;
405 devc->num_samples = 0;
406 devc->buf_len = 0;
407
408 /* Send header packet to the session bus. */
409 std_session_send_df_header(cb_data, LOG_PREFIX);
410
411 /* Poll every 100ms, or whenever some data comes in. */
412 serial = sdi->conn;
102f1239
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413 serial_source_add(sdi->session, serial, G_IO_IN, 150,
414 cem_dt_885x_receive_data, (void *)sdi);
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415
416 return SR_OK;
417}
418
419static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
420{
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421 if (sdi->status != SR_ST_ACTIVE)
422 return SR_ERR_DEV_CLOSED;
423
d43b0908 424 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
e37c4b39 425 sdi->conn, LOG_PREFIX);
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426}
427
428SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
429 .name = "cem-dt-885x",
430 .longname = "CEM DT-885x",
431 .api_version = 1,
432 .init = init,
433 .cleanup = cleanup,
434 .scan = scan,
435 .dev_list = dev_list,
a6630742 436 .dev_clear = NULL,
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437 .config_get = config_get,
438 .config_set = config_set,
439 .config_list = config_list,
440 .dev_open = dev_open,
bf2c987f 441 .dev_close = std_serial_dev_close,
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442 .dev_acquisition_start = dev_acquisition_start,
443 .dev_acquisition_stop = dev_acquisition_stop,
444 .priv = NULL,
445};