]> sigrok.org Git - libsigrok.git/blame - src/hardware/cem-dt-885x/api.c
scpi-pps: Fix dev_clear() implementation
[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
6ec6c43b 20#include <config.h>
be733919 21#include <string.h>
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22#include "protocol.h"
23
7fb8279c 24#define SERIALCOMM "9600/8n1"
1beccaed 25
7fb8279c 26/* 23ms is the longest interval between tokens. */
1a46cc62 27#define MAX_SCAN_TIME_US (25 * 1000)
7fb8279c 28
a0e0bb41 29static const uint32_t scanopts[] = {
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30 SR_CONF_CONN,
31};
32
023c73ae 33static const uint32_t drvopts[] = {
7fb8279c 34 SR_CONF_SOUNDLEVELMETER,
d7125bfa
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35};
36
023c73ae
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37static const uint32_t devopts[] = {
38 SR_CONF_CONTINUOUS | SR_CONF_SET,
39 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
5827f61b
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40 SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
41 SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
42 SR_CONF_SPL_MEASUREMENT_RANGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
43 SR_CONF_DATALOG | SR_CONF_GET | SR_CONF_SET,
44 SR_CONF_HOLD_MAX | SR_CONF_GET | SR_CONF_SET,
45 SR_CONF_HOLD_MIN | SR_CONF_GET | SR_CONF_SET,
46 SR_CONF_POWER_OFF | SR_CONF_GET | SR_CONF_SET,
47 SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
7fb8279c
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48};
49
be733919
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50static const char *weight_freq[] = {
51 "A",
52 "C",
53};
7fb8279c 54
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55static const char *weight_time[] = {
56 "F",
57 "S",
58};
59
f157b2ee
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60static const uint64_t meas_ranges[][2] = {
61 { 30, 130 },
62 { 30, 80 },
63 { 50, 100 },
64 { 80, 130 },
65};
66
662172d4
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67static const char *data_sources[] = {
68 "Live",
69 "Memory",
70};
8fa9368e 71
1beccaed 72SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
8fa9368e 73
4f840ce9 74static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
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75{
76 return std_init(sr_ctx, di, LOG_PREFIX);
77}
78
4f840ce9 79static GSList *scan(struct sr_dev_driver *di, GSList *options)
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80{
81 struct drv_context *drvc;
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82 struct dev_context *devc;
83 struct sr_config *src;
84 struct sr_serial_dev_inst *serial;
85 struct sr_dev_inst *sdi;
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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;
41812aca 106 drvc = di->context;
7fb8279c 107 start = g_get_monotonic_time();
1a46cc62 108 while (g_get_monotonic_time() - start < MAX_SCAN_TIME_US) {
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));
0af636be
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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;
5e23fcab 125 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
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126 drvc->instances = g_slist_append(drvc->instances, sdi);
127 devices = g_slist_append(devices, sdi);
128 break;
129 }
130 /* It takes about 1ms for a byte to come in. */
131 g_usleep(1000);
132 }
8fa9368e 133
7fb8279c 134 serial_close(serial);
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135
136 return devices;
137}
138
4f840ce9 139static GSList *dev_list(const struct sr_dev_driver *di)
8fa9368e 140{
41812aca 141 return ((struct drv_context *)(di->context))->instances;
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142}
143
4f840ce9 144static int cleanup(const struct sr_dev_driver *di)
8fa9368e 145{
a6630742 146 return std_dev_clear(di, NULL);
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147}
148
584560f1 149static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 150 const struct sr_channel_group *cg)
8fa9368e 151{
7fb8279c 152 struct dev_context *devc;
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153 GVariant *range[2];
154 uint64_t low, high;
a90e480c 155 int tmp, ret;
8fa9368e 156
53b4680f 157 (void)cg;
d3c74a6f 158
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159 if (!sdi)
160 return SR_ERR_ARG;
8fa9368e 161
7fb8279c 162 devc = sdi->priv;
a90e480c 163 ret = SR_OK;
8fa9368e 164 switch (key) {
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165 case SR_CONF_LIMIT_SAMPLES:
166 *data = g_variant_new_uint64(devc->limit_samples);
167 break;
e1af0e85 168 case SR_CONF_DATALOG:
0cd9107d
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169 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
170 *data = g_variant_new_boolean(tmp);
e1af0e85 171 break;
be733919
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172 case SR_CONF_SPL_WEIGHT_FREQ:
173 tmp = cem_dt_885x_weight_freq_get(sdi);
174 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
175 *data = g_variant_new_string("A");
176 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
177 *data = g_variant_new_string("C");
178 else
179 return SR_ERR;
180 break;
1487ce4f
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181 case SR_CONF_SPL_WEIGHT_TIME:
182 tmp = cem_dt_885x_weight_time_get(sdi);
183 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
184 *data = g_variant_new_string("F");
185 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
186 *data = g_variant_new_string("S");
187 else
188 return SR_ERR;
189 break;
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190 case SR_CONF_HOLD_MAX:
191 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
192 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
193 break;
194 case SR_CONF_HOLD_MIN:
195 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
196 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
197 break;
f157b2ee
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198 case SR_CONF_SPL_MEASUREMENT_RANGE:
199 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
200 range[0] = g_variant_new_uint64(low);
201 range[1] = g_variant_new_uint64(high);
202 *data = g_variant_new_tuple(range, 2);
203 }
204 break;
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205 case SR_CONF_POWER_OFF:
206 *data = g_variant_new_boolean(FALSE);
207 break;
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208 case SR_CONF_DATA_SOURCE:
209 if (devc->cur_data_source == DATA_SOURCE_LIVE)
210 *data = g_variant_new_string("Live");
211 else
212 *data = g_variant_new_string("Memory");
213 break;
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214 default:
215 return SR_ERR_NA;
216 }
217
a90e480c 218 return ret;
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219}
220
584560f1 221static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
53b4680f 222 const struct sr_channel_group *cg)
8fa9368e 223{
7fb8279c 224 struct dev_context *devc;
f157b2ee
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225 uint64_t tmp_u64, low, high;
226 unsigned int i;
a90e480c 227 int tmp, ret;
be733919 228 const char *tmp_str;
8fa9368e 229
53b4680f 230 (void)cg;
d3c74a6f 231
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232 if (sdi->status != SR_ST_ACTIVE)
233 return SR_ERR_DEV_CLOSED;
234
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235 if (!(devc = sdi->priv)) {
236 sr_err("sdi->priv was NULL.");
237 return SR_ERR_BUG;
238 }
239
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240 ret = SR_OK;
241 switch (key) {
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242 case SR_CONF_LIMIT_SAMPLES:
243 tmp_u64 = g_variant_get_uint64(data);
244 devc->limit_samples = tmp_u64;
245 ret = SR_OK;
246 break;
e1af0e85 247 case SR_CONF_DATALOG:
0cd9107d 248 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
e1af0e85 249 break;
be733919
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250 case SR_CONF_SPL_WEIGHT_FREQ:
251 tmp_str = g_variant_get_string(data, NULL);
252 if (!strcmp(tmp_str, "A"))
253 ret = cem_dt_885x_weight_freq_set(sdi,
254 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
255 else if (!strcmp(tmp_str, "C"))
256 ret = cem_dt_885x_weight_freq_set(sdi,
257 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
258 else
259 return SR_ERR_ARG;
260 break;
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261 case SR_CONF_SPL_WEIGHT_TIME:
262 tmp_str = g_variant_get_string(data, NULL);
263 if (!strcmp(tmp_str, "F"))
264 ret = cem_dt_885x_weight_time_set(sdi,
265 SR_MQFLAG_SPL_TIME_WEIGHT_F);
266 else if (!strcmp(tmp_str, "S"))
267 ret = cem_dt_885x_weight_time_set(sdi,
268 SR_MQFLAG_SPL_TIME_WEIGHT_S);
269 else
270 return SR_ERR_ARG;
271 break;
a90e480c
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272 case SR_CONF_HOLD_MAX:
273 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
274 ret = cem_dt_885x_holdmode_set(sdi, tmp);
275 break;
276 case SR_CONF_HOLD_MIN:
277 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
278 ret = cem_dt_885x_holdmode_set(sdi, tmp);
279 break;
f157b2ee
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280 case SR_CONF_SPL_MEASUREMENT_RANGE:
281 g_variant_get(data, "(tt)", &low, &high);
282 ret = SR_ERR_ARG;
283 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
284 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
285 ret = cem_dt_885x_meas_range_set(sdi, low, high);
286 break;
287 }
288 }
289 break;
4c22355f
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290 case SR_CONF_POWER_OFF:
291 if (g_variant_get_boolean(data))
292 ret = cem_dt_885x_power_off(sdi);
293 break;
662172d4
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294 case SR_CONF_DATA_SOURCE:
295 tmp_str = g_variant_get_string(data, NULL);
296 if (!strcmp(tmp_str, "Live"))
297 devc->cur_data_source = DATA_SOURCE_LIVE;
298 else if (!strcmp(tmp_str, "Memory"))
299 devc->cur_data_source = DATA_SOURCE_MEMORY;
300 else
301 return SR_ERR;
cea26f6e 302 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
662172d4 303 break;
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304 default:
305 ret = SR_ERR_NA;
306 }
307
308 return ret;
309}
310
584560f1 311static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 312 const struct sr_channel_group *cg)
8fa9368e 313{
f157b2ee
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314 GVariant *tuple, *range[2];
315 GVariantBuilder gvb;
316 unsigned int i;
8fa9368e
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317 int ret;
318
53b4680f 319 (void)cg;
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320
321 ret = SR_OK;
d7125bfa
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322 if (!sdi) {
323 switch (key) {
324 case SR_CONF_SCAN_OPTIONS:
325 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
326 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
327 break;
328 case SR_CONF_DEVICE_OPTIONS:
329 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
023c73ae 330 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
d7125bfa
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331 break;
332 default:
333 return SR_ERR_NA;
334 }
335 } else {
336 switch (key) {
337 case SR_CONF_DEVICE_OPTIONS:
338 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
023c73ae 339 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
e742b88f 340 break;
d7125bfa
BV
341 case SR_CONF_SPL_WEIGHT_FREQ:
342 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
343 break;
344 case SR_CONF_SPL_WEIGHT_TIME:
345 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
346 break;
347 case SR_CONF_SPL_MEASUREMENT_RANGE:
348 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
349 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
350 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
351 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
352 tuple = g_variant_new_tuple(range, 2);
353 g_variant_builder_add_value(&gvb, tuple);
354 }
355 *data = g_variant_builder_end(&gvb);
356 break;
357 case SR_CONF_DATA_SOURCE:
358 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
359 break;
360 default:
361 return SR_ERR_NA;
f157b2ee 362 }
8fa9368e
BV
363 }
364
365 return ret;
366}
367
695dc859 368static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8fa9368e 369{
e37c4b39
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370 struct dev_context *devc;
371 struct sr_serial_dev_inst *serial;
8fa9368e
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372
373 if (sdi->status != SR_ST_ACTIVE)
374 return SR_ERR_DEV_CLOSED;
375
208c1d35 376 devc = sdi->priv;
e37c4b39
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377 devc->state = ST_INIT;
378 devc->num_samples = 0;
379 devc->buf_len = 0;
380
695dc859 381 std_session_send_df_header(sdi, LOG_PREFIX);
e37c4b39
BV
382
383 /* Poll every 100ms, or whenever some data comes in. */
384 serial = sdi->conn;
102f1239
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385 serial_source_add(sdi->session, serial, G_IO_IN, 150,
386 cem_dt_885x_receive_data, (void *)sdi);
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387
388 return SR_OK;
389}
390
695dc859 391static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8fa9368e 392{
8fa9368e
BV
393 if (sdi->status != SR_ST_ACTIVE)
394 return SR_ERR_DEV_CLOSED;
395
6525d819 396 return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
e37c4b39 397 sdi->conn, LOG_PREFIX);
8fa9368e
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398}
399
400SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
401 .name = "cem-dt-885x",
402 .longname = "CEM DT-885x",
403 .api_version = 1,
404 .init = init,
405 .cleanup = cleanup,
406 .scan = scan,
407 .dev_list = dev_list,
a6630742 408 .dev_clear = NULL,
8fa9368e
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409 .config_get = config_get,
410 .config_set = config_set,
411 .config_list = config_list,
8f878dc6 412 .dev_open = std_serial_dev_open,
bf2c987f 413 .dev_close = std_serial_dev_close,
8fa9368e
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414 .dev_acquisition_start = dev_acquisition_start,
415 .dev_acquisition_stop = dev_acquisition_stop,
41812aca 416 .context = NULL,
8fa9368e 417};