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[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
023c73ae 31static const uint32_t drvopts[] = {
7fb8279c 32 SR_CONF_SOUNDLEVELMETER,
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33};
34
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35static const uint32_t devopts[] = {
36 SR_CONF_CONTINUOUS | SR_CONF_SET,
37 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
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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
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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
91219afc 100 serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
8fa9368e 101
d7b269da 102 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
7fb8279c 103 return NULL;
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104
105 devices = NULL;
106 drvc = di->priv;
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107 start = g_get_monotonic_time();
108 while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
d7b269da 109 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
7fb8279c 110 /* Found one. */
aac29cc1 111 sdi = g_malloc0(sizeof(struct sr_dev_inst));
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112 sdi->status = SR_ST_INACTIVE;
113 sdi->vendor = g_strdup("CEM");
114 sdi->model = g_strdup("DT-885x");
f57d8ffe 115 devc = g_malloc0(sizeof(struct dev_context));
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116 devc->cur_mqflags = 0;
117 devc->recording = -1;
f157b2ee 118 devc->cur_meas_range = 0;
662172d4 119 devc->cur_data_source = DATA_SOURCE_LIVE;
cea26f6e 120 devc->enable_data_source_memory = FALSE;
91219afc 121 sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
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122 sdi->inst_type = SR_INST_SERIAL;
123 sdi->priv = devc;
124 sdi->driver = di;
c368e6f3 125 ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL");
ba7dd8bb 126 sdi->channels = g_slist_append(sdi->channels, ch);
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127 drvc->instances = g_slist_append(drvc->instances, sdi);
128 devices = g_slist_append(devices, sdi);
129 break;
130 }
131 /* It takes about 1ms for a byte to come in. */
132 g_usleep(1000);
133 }
8fa9368e 134
7fb8279c 135 serial_close(serial);
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136
137 return devices;
138}
139
140static GSList *dev_list(void)
141{
ce4d26dd 142 return ((struct drv_context *)(di->priv))->instances;
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143}
144
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145static int dev_open(struct sr_dev_inst *sdi)
146{
7fb8279c 147 struct sr_serial_dev_inst *serial;
8fa9368e 148
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149 serial = sdi->conn;
150 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
151 return SR_ERR;
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152
153 sdi->status = SR_ST_ACTIVE;
154
155 return SR_OK;
156}
157
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158static int cleanup(void)
159{
a6630742 160 return std_dev_clear(di, NULL);
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161}
162
584560f1 163static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 164 const struct sr_channel_group *cg)
8fa9368e 165{
7fb8279c 166 struct dev_context *devc;
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167 GVariant *range[2];
168 uint64_t low, high;
a90e480c 169 int tmp, ret;
8fa9368e 170
53b4680f 171 (void)cg;
d3c74a6f 172
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173 if (!sdi)
174 return SR_ERR_ARG;
8fa9368e 175
7fb8279c 176 devc = sdi->priv;
a90e480c 177 ret = SR_OK;
8fa9368e 178 switch (key) {
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179 case SR_CONF_LIMIT_SAMPLES:
180 *data = g_variant_new_uint64(devc->limit_samples);
181 break;
e1af0e85 182 case SR_CONF_DATALOG:
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183 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
184 *data = g_variant_new_boolean(tmp);
e1af0e85 185 break;
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186 case SR_CONF_SPL_WEIGHT_FREQ:
187 tmp = cem_dt_885x_weight_freq_get(sdi);
188 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
189 *data = g_variant_new_string("A");
190 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
191 *data = g_variant_new_string("C");
192 else
193 return SR_ERR;
194 break;
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195 case SR_CONF_SPL_WEIGHT_TIME:
196 tmp = cem_dt_885x_weight_time_get(sdi);
197 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
198 *data = g_variant_new_string("F");
199 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
200 *data = g_variant_new_string("S");
201 else
202 return SR_ERR;
203 break;
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204 case SR_CONF_HOLD_MAX:
205 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
206 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
207 break;
208 case SR_CONF_HOLD_MIN:
209 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
210 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
211 break;
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212 case SR_CONF_SPL_MEASUREMENT_RANGE:
213 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
214 range[0] = g_variant_new_uint64(low);
215 range[1] = g_variant_new_uint64(high);
216 *data = g_variant_new_tuple(range, 2);
217 }
218 break;
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219 case SR_CONF_POWER_OFF:
220 *data = g_variant_new_boolean(FALSE);
221 break;
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222 case SR_CONF_DATA_SOURCE:
223 if (devc->cur_data_source == DATA_SOURCE_LIVE)
224 *data = g_variant_new_string("Live");
225 else
226 *data = g_variant_new_string("Memory");
227 break;
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228 default:
229 return SR_ERR_NA;
230 }
231
a90e480c 232 return ret;
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233}
234
584560f1 235static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
53b4680f 236 const struct sr_channel_group *cg)
8fa9368e 237{
7fb8279c 238 struct dev_context *devc;
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239 uint64_t tmp_u64, low, high;
240 unsigned int i;
a90e480c 241 int tmp, ret;
be733919 242 const char *tmp_str;
8fa9368e 243
53b4680f 244 (void)cg;
d3c74a6f 245
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246 if (sdi->status != SR_ST_ACTIVE)
247 return SR_ERR_DEV_CLOSED;
248
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249 if (!(devc = sdi->priv)) {
250 sr_err("sdi->priv was NULL.");
251 return SR_ERR_BUG;
252 }
253
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254 ret = SR_OK;
255 switch (key) {
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256 case SR_CONF_LIMIT_SAMPLES:
257 tmp_u64 = g_variant_get_uint64(data);
258 devc->limit_samples = tmp_u64;
259 ret = SR_OK;
260 break;
e1af0e85 261 case SR_CONF_DATALOG:
0cd9107d 262 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
e1af0e85 263 break;
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264 case SR_CONF_SPL_WEIGHT_FREQ:
265 tmp_str = g_variant_get_string(data, NULL);
266 if (!strcmp(tmp_str, "A"))
267 ret = cem_dt_885x_weight_freq_set(sdi,
268 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
269 else if (!strcmp(tmp_str, "C"))
270 ret = cem_dt_885x_weight_freq_set(sdi,
271 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
272 else
273 return SR_ERR_ARG;
274 break;
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275 case SR_CONF_SPL_WEIGHT_TIME:
276 tmp_str = g_variant_get_string(data, NULL);
277 if (!strcmp(tmp_str, "F"))
278 ret = cem_dt_885x_weight_time_set(sdi,
279 SR_MQFLAG_SPL_TIME_WEIGHT_F);
280 else if (!strcmp(tmp_str, "S"))
281 ret = cem_dt_885x_weight_time_set(sdi,
282 SR_MQFLAG_SPL_TIME_WEIGHT_S);
283 else
284 return SR_ERR_ARG;
285 break;
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286 case SR_CONF_HOLD_MAX:
287 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
288 ret = cem_dt_885x_holdmode_set(sdi, tmp);
289 break;
290 case SR_CONF_HOLD_MIN:
291 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
292 ret = cem_dt_885x_holdmode_set(sdi, tmp);
293 break;
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294 case SR_CONF_SPL_MEASUREMENT_RANGE:
295 g_variant_get(data, "(tt)", &low, &high);
296 ret = SR_ERR_ARG;
297 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
298 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
299 ret = cem_dt_885x_meas_range_set(sdi, low, high);
300 break;
301 }
302 }
303 break;
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304 case SR_CONF_POWER_OFF:
305 if (g_variant_get_boolean(data))
306 ret = cem_dt_885x_power_off(sdi);
307 break;
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308 case SR_CONF_DATA_SOURCE:
309 tmp_str = g_variant_get_string(data, NULL);
310 if (!strcmp(tmp_str, "Live"))
311 devc->cur_data_source = DATA_SOURCE_LIVE;
312 else if (!strcmp(tmp_str, "Memory"))
313 devc->cur_data_source = DATA_SOURCE_MEMORY;
314 else
315 return SR_ERR;
cea26f6e 316 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
662172d4 317 break;
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318 default:
319 ret = SR_ERR_NA;
320 }
321
322 return ret;
323}
324
584560f1 325static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 326 const struct sr_channel_group *cg)
8fa9368e 327{
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328 GVariant *tuple, *range[2];
329 GVariantBuilder gvb;
330 unsigned int i;
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331 int ret;
332
53b4680f 333 (void)cg;
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334
335 ret = SR_OK;
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336 if (!sdi) {
337 switch (key) {
338 case SR_CONF_SCAN_OPTIONS:
339 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
340 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
341 break;
342 case SR_CONF_DEVICE_OPTIONS:
343 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
023c73ae 344 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
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345 break;
346 default:
347 return SR_ERR_NA;
348 }
349 } else {
350 switch (key) {
351 case SR_CONF_DEVICE_OPTIONS:
352 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
023c73ae 353 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
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354 case SR_CONF_SPL_WEIGHT_FREQ:
355 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
356 break;
357 case SR_CONF_SPL_WEIGHT_TIME:
358 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
359 break;
360 case SR_CONF_SPL_MEASUREMENT_RANGE:
361 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
362 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
363 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
364 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
365 tuple = g_variant_new_tuple(range, 2);
366 g_variant_builder_add_value(&gvb, tuple);
367 }
368 *data = g_variant_builder_end(&gvb);
369 break;
370 case SR_CONF_DATA_SOURCE:
371 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
372 break;
373 default:
374 return SR_ERR_NA;
f157b2ee 375 }
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376 }
377
378 return ret;
379}
380
e37c4b39 381static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
8fa9368e 382{
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383 struct dev_context *devc;
384 struct sr_serial_dev_inst *serial;
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385
386 if (sdi->status != SR_ST_ACTIVE)
387 return SR_ERR_DEV_CLOSED;
388
e37c4b39
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389 if (!(devc = sdi->priv)) {
390 sr_err("sdi->priv was NULL.");
391 return SR_ERR_BUG;
392 }
393
394 devc->cb_data = cb_data;
395 devc->state = ST_INIT;
396 devc->num_samples = 0;
397 devc->buf_len = 0;
398
399 /* Send header packet to the session bus. */
400 std_session_send_df_header(cb_data, LOG_PREFIX);
401
402 /* Poll every 100ms, or whenever some data comes in. */
403 serial = sdi->conn;
102f1239
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404 serial_source_add(sdi->session, serial, G_IO_IN, 150,
405 cem_dt_885x_receive_data, (void *)sdi);
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406
407 return SR_OK;
408}
409
410static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
411{
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412 if (sdi->status != SR_ST_ACTIVE)
413 return SR_ERR_DEV_CLOSED;
414
d43b0908 415 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
e37c4b39 416 sdi->conn, LOG_PREFIX);
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417}
418
419SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
420 .name = "cem-dt-885x",
421 .longname = "CEM DT-885x",
422 .api_version = 1,
423 .init = init,
424 .cleanup = cleanup,
425 .scan = scan,
426 .dev_list = dev_list,
a6630742 427 .dev_clear = NULL,
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428 .config_get = config_get,
429 .config_set = config_set,
430 .config_list = config_list,
431 .dev_open = dev_open,
bf2c987f 432 .dev_close = std_serial_dev_close,
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433 .dev_acquisition_start = dev_acquisition_start,
434 .dev_acquisition_stop = dev_acquisition_stop,
435 .priv = NULL,
436};