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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,
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35};
36
023c73ae 37static const uint32_t devopts[] = {
e91bb0a6 38 SR_CONF_CONTINUOUS,
023c73ae 39 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
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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,
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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
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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
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67static const char *data_sources[] = {
68 "Live",
69 "Memory",
70};
8fa9368e 71
4f840ce9 72static GSList *scan(struct sr_dev_driver *di, GSList *options)
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73{
74 struct drv_context *drvc;
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75 struct dev_context *devc;
76 struct sr_config *src;
77 struct sr_serial_dev_inst *serial;
78 struct sr_dev_inst *sdi;
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79 GSList *l, *devices;
80 gint64 start;
81 const char *conn;
82 unsigned char c;
83
84 conn = NULL;
85 for (l = options; l; l = l->next) {
86 src = l->data;
87 if (src->key == SR_CONF_CONN)
88 conn = g_variant_get_string(src->data, NULL);
89 }
90 if (!conn)
91 return NULL;
92
91219afc 93 serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
8fa9368e 94
d7b269da 95 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
7fb8279c 96 return NULL;
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97
98 devices = NULL;
41812aca 99 drvc = di->context;
7fb8279c 100 start = g_get_monotonic_time();
1a46cc62 101 while (g_get_monotonic_time() - start < MAX_SCAN_TIME_US) {
d7b269da 102 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
7fb8279c 103 /* Found one. */
aac29cc1 104 sdi = g_malloc0(sizeof(struct sr_dev_inst));
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105 sdi->status = SR_ST_INACTIVE;
106 sdi->vendor = g_strdup("CEM");
107 sdi->model = g_strdup("DT-885x");
f57d8ffe 108 devc = g_malloc0(sizeof(struct dev_context));
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109 devc->cur_mqflags = 0;
110 devc->recording = -1;
f157b2ee 111 devc->cur_meas_range = 0;
662172d4 112 devc->cur_data_source = DATA_SOURCE_LIVE;
cea26f6e 113 devc->enable_data_source_memory = FALSE;
91219afc 114 sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
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115 sdi->inst_type = SR_INST_SERIAL;
116 sdi->priv = devc;
117 sdi->driver = di;
5e23fcab 118 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
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119 drvc->instances = g_slist_append(drvc->instances, sdi);
120 devices = g_slist_append(devices, sdi);
121 break;
122 }
123 /* It takes about 1ms for a byte to come in. */
124 g_usleep(1000);
125 }
8fa9368e 126
7fb8279c 127 serial_close(serial);
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128
129 return devices;
130}
131
584560f1 132static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 133 const struct sr_channel_group *cg)
8fa9368e 134{
7fb8279c 135 struct dev_context *devc;
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136 GVariant *range[2];
137 uint64_t low, high;
a90e480c 138 int tmp, ret;
8fa9368e 139
53b4680f 140 (void)cg;
d3c74a6f 141
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142 if (!sdi)
143 return SR_ERR_ARG;
8fa9368e 144
7fb8279c 145 devc = sdi->priv;
a90e480c 146 ret = SR_OK;
8fa9368e 147 switch (key) {
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148 case SR_CONF_LIMIT_SAMPLES:
149 *data = g_variant_new_uint64(devc->limit_samples);
150 break;
e1af0e85 151 case SR_CONF_DATALOG:
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152 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
153 *data = g_variant_new_boolean(tmp);
e1af0e85 154 break;
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155 case SR_CONF_SPL_WEIGHT_FREQ:
156 tmp = cem_dt_885x_weight_freq_get(sdi);
157 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
158 *data = g_variant_new_string("A");
159 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
160 *data = g_variant_new_string("C");
161 else
162 return SR_ERR;
163 break;
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164 case SR_CONF_SPL_WEIGHT_TIME:
165 tmp = cem_dt_885x_weight_time_get(sdi);
166 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
167 *data = g_variant_new_string("F");
168 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
169 *data = g_variant_new_string("S");
170 else
171 return SR_ERR;
172 break;
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173 case SR_CONF_HOLD_MAX:
174 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
175 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
176 break;
177 case SR_CONF_HOLD_MIN:
178 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
179 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
180 break;
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181 case SR_CONF_SPL_MEASUREMENT_RANGE:
182 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
183 range[0] = g_variant_new_uint64(low);
184 range[1] = g_variant_new_uint64(high);
185 *data = g_variant_new_tuple(range, 2);
186 }
187 break;
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188 case SR_CONF_POWER_OFF:
189 *data = g_variant_new_boolean(FALSE);
190 break;
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191 case SR_CONF_DATA_SOURCE:
192 if (devc->cur_data_source == DATA_SOURCE_LIVE)
193 *data = g_variant_new_string("Live");
194 else
195 *data = g_variant_new_string("Memory");
196 break;
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197 default:
198 return SR_ERR_NA;
199 }
200
a90e480c 201 return ret;
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202}
203
584560f1 204static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
53b4680f 205 const struct sr_channel_group *cg)
8fa9368e 206{
7fb8279c 207 struct dev_context *devc;
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208 uint64_t tmp_u64, low, high;
209 unsigned int i;
a90e480c 210 int tmp, ret;
be733919 211 const char *tmp_str;
8fa9368e 212
53b4680f 213 (void)cg;
d3c74a6f 214
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215 if (sdi->status != SR_ST_ACTIVE)
216 return SR_ERR_DEV_CLOSED;
217
b0baddef 218 devc = sdi->priv;
7fb8279c 219
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220 ret = SR_OK;
221 switch (key) {
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222 case SR_CONF_LIMIT_SAMPLES:
223 tmp_u64 = g_variant_get_uint64(data);
224 devc->limit_samples = tmp_u64;
225 ret = SR_OK;
226 break;
e1af0e85 227 case SR_CONF_DATALOG:
0cd9107d 228 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
e1af0e85 229 break;
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230 case SR_CONF_SPL_WEIGHT_FREQ:
231 tmp_str = g_variant_get_string(data, NULL);
232 if (!strcmp(tmp_str, "A"))
233 ret = cem_dt_885x_weight_freq_set(sdi,
234 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
235 else if (!strcmp(tmp_str, "C"))
236 ret = cem_dt_885x_weight_freq_set(sdi,
237 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
238 else
239 return SR_ERR_ARG;
240 break;
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241 case SR_CONF_SPL_WEIGHT_TIME:
242 tmp_str = g_variant_get_string(data, NULL);
243 if (!strcmp(tmp_str, "F"))
244 ret = cem_dt_885x_weight_time_set(sdi,
245 SR_MQFLAG_SPL_TIME_WEIGHT_F);
246 else if (!strcmp(tmp_str, "S"))
247 ret = cem_dt_885x_weight_time_set(sdi,
248 SR_MQFLAG_SPL_TIME_WEIGHT_S);
249 else
250 return SR_ERR_ARG;
251 break;
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252 case SR_CONF_HOLD_MAX:
253 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
254 ret = cem_dt_885x_holdmode_set(sdi, tmp);
255 break;
256 case SR_CONF_HOLD_MIN:
257 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
258 ret = cem_dt_885x_holdmode_set(sdi, tmp);
259 break;
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260 case SR_CONF_SPL_MEASUREMENT_RANGE:
261 g_variant_get(data, "(tt)", &low, &high);
262 ret = SR_ERR_ARG;
263 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
264 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
265 ret = cem_dt_885x_meas_range_set(sdi, low, high);
266 break;
267 }
268 }
269 break;
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270 case SR_CONF_POWER_OFF:
271 if (g_variant_get_boolean(data))
272 ret = cem_dt_885x_power_off(sdi);
273 break;
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274 case SR_CONF_DATA_SOURCE:
275 tmp_str = g_variant_get_string(data, NULL);
276 if (!strcmp(tmp_str, "Live"))
277 devc->cur_data_source = DATA_SOURCE_LIVE;
278 else if (!strcmp(tmp_str, "Memory"))
279 devc->cur_data_source = DATA_SOURCE_MEMORY;
280 else
281 return SR_ERR;
cea26f6e 282 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
662172d4 283 break;
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284 default:
285 ret = SR_ERR_NA;
286 }
287
288 return ret;
289}
290
584560f1 291static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 292 const struct sr_channel_group *cg)
8fa9368e 293{
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294 GVariant *tuple, *range[2];
295 GVariantBuilder gvb;
296 unsigned int i;
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297 int ret;
298
53b4680f 299 (void)cg;
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300
301 ret = SR_OK;
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302 if (!sdi) {
303 switch (key) {
304 case SR_CONF_SCAN_OPTIONS:
305 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
306 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
307 break;
308 case SR_CONF_DEVICE_OPTIONS:
309 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
023c73ae 310 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
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311 break;
312 default:
313 return SR_ERR_NA;
314 }
315 } else {
316 switch (key) {
317 case SR_CONF_DEVICE_OPTIONS:
318 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
023c73ae 319 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
e742b88f 320 break;
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321 case SR_CONF_SPL_WEIGHT_FREQ:
322 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
323 break;
324 case SR_CONF_SPL_WEIGHT_TIME:
325 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
326 break;
327 case SR_CONF_SPL_MEASUREMENT_RANGE:
328 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
329 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
330 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
331 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
332 tuple = g_variant_new_tuple(range, 2);
333 g_variant_builder_add_value(&gvb, tuple);
334 }
335 *data = g_variant_builder_end(&gvb);
336 break;
337 case SR_CONF_DATA_SOURCE:
338 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
339 break;
340 default:
341 return SR_ERR_NA;
f157b2ee 342 }
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343 }
344
345 return ret;
346}
347
695dc859 348static int dev_acquisition_start(const struct sr_dev_inst *sdi)
8fa9368e 349{
e37c4b39
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350 struct dev_context *devc;
351 struct sr_serial_dev_inst *serial;
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352
353 if (sdi->status != SR_ST_ACTIVE)
354 return SR_ERR_DEV_CLOSED;
355
208c1d35 356 devc = sdi->priv;
e37c4b39
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357 devc->state = ST_INIT;
358 devc->num_samples = 0;
359 devc->buf_len = 0;
360
695dc859 361 std_session_send_df_header(sdi, LOG_PREFIX);
e37c4b39
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362
363 /* Poll every 100ms, or whenever some data comes in. */
364 serial = sdi->conn;
102f1239
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365 serial_source_add(sdi->session, serial, G_IO_IN, 150,
366 cem_dt_885x_receive_data, (void *)sdi);
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367
368 return SR_OK;
369}
370
695dc859 371static int dev_acquisition_stop(struct sr_dev_inst *sdi)
8fa9368e 372{
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373 if (sdi->status != SR_ST_ACTIVE)
374 return SR_ERR_DEV_CLOSED;
375
6525d819 376 return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
e37c4b39 377 sdi->conn, LOG_PREFIX);
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378}
379
dd5c48a6 380static struct sr_dev_driver cem_dt_885x_driver_info = {
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381 .name = "cem-dt-885x",
382 .longname = "CEM DT-885x",
383 .api_version = 1,
c2fdcc25 384 .init = std_init,
700d6b64 385 .cleanup = std_cleanup,
8fa9368e 386 .scan = scan,
c01bf34c 387 .dev_list = std_dev_list,
a6630742 388 .dev_clear = NULL,
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389 .config_get = config_get,
390 .config_set = config_set,
391 .config_list = config_list,
8f878dc6 392 .dev_open = std_serial_dev_open,
bf2c987f 393 .dev_close = std_serial_dev_close,
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394 .dev_acquisition_start = dev_acquisition_start,
395 .dev_acquisition_stop = dev_acquisition_stop,
41812aca 396 .context = NULL,
8fa9368e 397};
dd5c48a6 398SR_REGISTER_DEV_DRIVER(cem_dt_885x_driver_info);