2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
24 #define SERIALCOMM "9600/8n1"
26 /* 23ms is the longest interval between tokens. */
27 #define MAX_SCAN_TIME_US (25 * 1000)
29 static const uint32_t scanopts[] = {
33 static const uint32_t drvopts[] = {
34 SR_CONF_SOUNDLEVELMETER,
37 static const uint32_t devopts[] = {
39 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
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,
50 static const char *weight_freq[] = {
55 static const char *weight_time[] = {
60 static const uint64_t meas_ranges[][2] = {
67 static const char *data_sources[] = {
72 static GSList *scan(struct sr_dev_driver *di, GSList *options)
74 struct drv_context *drvc;
75 struct dev_context *devc;
76 struct sr_config *src;
77 struct sr_serial_dev_inst *serial;
78 struct sr_dev_inst *sdi;
85 for (l = options; l; l = l->next) {
87 if (src->key == SR_CONF_CONN)
88 conn = g_variant_get_string(src->data, NULL);
93 serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
95 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
100 start = g_get_monotonic_time();
101 while (g_get_monotonic_time() - start < MAX_SCAN_TIME_US) {
102 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
104 sdi = g_malloc0(sizeof(struct sr_dev_inst));
105 sdi->status = SR_ST_INACTIVE;
106 sdi->vendor = g_strdup("CEM");
107 sdi->model = g_strdup("DT-885x");
108 devc = g_malloc0(sizeof(struct dev_context));
109 devc->cur_mqflags = 0;
110 devc->recording = -1;
111 devc->cur_meas_range = 0;
112 devc->cur_data_source = DATA_SOURCE_LIVE;
113 devc->enable_data_source_memory = FALSE;
114 sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
115 sdi->inst_type = SR_INST_SERIAL;
118 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
119 drvc->instances = g_slist_append(drvc->instances, sdi);
120 devices = g_slist_append(devices, sdi);
123 /* It takes about 1ms for a byte to come in. */
127 serial_close(serial);
132 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
133 const struct sr_channel_group *cg)
135 struct dev_context *devc;
148 case SR_CONF_LIMIT_SAMPLES:
149 *data = g_variant_new_uint64(devc->limit_samples);
151 case SR_CONF_DATALOG:
152 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
153 *data = g_variant_new_boolean(tmp);
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");
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");
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);
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);
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);
188 case SR_CONF_POWER_OFF:
189 *data = g_variant_new_boolean(FALSE);
191 case SR_CONF_DATA_SOURCE:
192 if (devc->cur_data_source == DATA_SOURCE_LIVE)
193 *data = g_variant_new_string("Live");
195 *data = g_variant_new_string("Memory");
204 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
205 const struct sr_channel_group *cg)
207 struct dev_context *devc;
208 uint64_t tmp_u64, low, high;
215 if (sdi->status != SR_ST_ACTIVE)
216 return SR_ERR_DEV_CLOSED;
222 case SR_CONF_LIMIT_SAMPLES:
223 tmp_u64 = g_variant_get_uint64(data);
224 devc->limit_samples = tmp_u64;
227 case SR_CONF_DATALOG:
228 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
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);
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);
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);
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);
260 case SR_CONF_SPL_MEASUREMENT_RANGE:
261 g_variant_get(data, "(tt)", &low, &high);
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);
270 case SR_CONF_POWER_OFF:
271 if (g_variant_get_boolean(data))
272 ret = cem_dt_885x_power_off(sdi);
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;
282 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
291 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
292 const struct sr_channel_group *cg)
294 GVariant *tuple, *range[2];
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));
308 case SR_CONF_DEVICE_OPTIONS:
309 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
310 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
317 case SR_CONF_DEVICE_OPTIONS:
318 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
319 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
321 case SR_CONF_SPL_WEIGHT_FREQ:
322 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
324 case SR_CONF_SPL_WEIGHT_TIME:
325 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
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);
335 *data = g_variant_builder_end(&gvb);
337 case SR_CONF_DATA_SOURCE:
338 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
348 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
350 struct dev_context *devc;
351 struct sr_serial_dev_inst *serial;
353 if (sdi->status != SR_ST_ACTIVE)
354 return SR_ERR_DEV_CLOSED;
357 devc->state = ST_INIT;
358 devc->num_samples = 0;
361 std_session_send_df_header(sdi, LOG_PREFIX);
363 /* Poll every 100ms, or whenever some data comes in. */
365 serial_source_add(sdi->session, serial, G_IO_IN, 150,
366 cem_dt_885x_receive_data, (void *)sdi);
371 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
373 if (sdi->status != SR_ST_ACTIVE)
374 return SR_ERR_DEV_CLOSED;
376 return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
377 sdi->conn, LOG_PREFIX);
380 SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
381 .name = "cem-dt-885x",
382 .longname = "CEM DT-885x",
385 .cleanup = std_cleanup,
387 .dev_list = std_dev_list,
389 .config_get = config_get,
390 .config_set = config_set,
391 .config_list = config_list,
392 .dev_open = std_serial_dev_open,
393 .dev_close = std_serial_dev_close,
394 .dev_acquisition_start = dev_acquisition_start,
395 .dev_acquisition_stop = dev_acquisition_stop,