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 SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
74 static GSList *scan(struct sr_dev_driver *di, GSList *options)
76 struct drv_context *drvc;
77 struct dev_context *devc;
78 struct sr_config *src;
79 struct sr_serial_dev_inst *serial;
80 struct sr_dev_inst *sdi;
87 for (l = options; l; l = l->next) {
89 if (src->key == SR_CONF_CONN)
90 conn = g_variant_get_string(src->data, NULL);
95 serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
97 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
102 start = g_get_monotonic_time();
103 while (g_get_monotonic_time() - start < MAX_SCAN_TIME_US) {
104 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
106 sdi = g_malloc0(sizeof(struct sr_dev_inst));
107 sdi->status = SR_ST_INACTIVE;
108 sdi->vendor = g_strdup("CEM");
109 sdi->model = g_strdup("DT-885x");
110 devc = g_malloc0(sizeof(struct dev_context));
111 devc->cur_mqflags = 0;
112 devc->recording = -1;
113 devc->cur_meas_range = 0;
114 devc->cur_data_source = DATA_SOURCE_LIVE;
115 devc->enable_data_source_memory = FALSE;
116 sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
117 sdi->inst_type = SR_INST_SERIAL;
120 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
121 drvc->instances = g_slist_append(drvc->instances, sdi);
122 devices = g_slist_append(devices, sdi);
125 /* It takes about 1ms for a byte to come in. */
129 serial_close(serial);
134 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
135 const struct sr_channel_group *cg)
137 struct dev_context *devc;
150 case SR_CONF_LIMIT_SAMPLES:
151 *data = g_variant_new_uint64(devc->limit_samples);
153 case SR_CONF_DATALOG:
154 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
155 *data = g_variant_new_boolean(tmp);
157 case SR_CONF_SPL_WEIGHT_FREQ:
158 tmp = cem_dt_885x_weight_freq_get(sdi);
159 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
160 *data = g_variant_new_string("A");
161 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
162 *data = g_variant_new_string("C");
166 case SR_CONF_SPL_WEIGHT_TIME:
167 tmp = cem_dt_885x_weight_time_get(sdi);
168 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
169 *data = g_variant_new_string("F");
170 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
171 *data = g_variant_new_string("S");
175 case SR_CONF_HOLD_MAX:
176 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
177 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
179 case SR_CONF_HOLD_MIN:
180 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
181 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
183 case SR_CONF_SPL_MEASUREMENT_RANGE:
184 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
185 range[0] = g_variant_new_uint64(low);
186 range[1] = g_variant_new_uint64(high);
187 *data = g_variant_new_tuple(range, 2);
190 case SR_CONF_POWER_OFF:
191 *data = g_variant_new_boolean(FALSE);
193 case SR_CONF_DATA_SOURCE:
194 if (devc->cur_data_source == DATA_SOURCE_LIVE)
195 *data = g_variant_new_string("Live");
197 *data = g_variant_new_string("Memory");
206 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
207 const struct sr_channel_group *cg)
209 struct dev_context *devc;
210 uint64_t tmp_u64, low, high;
217 if (sdi->status != SR_ST_ACTIVE)
218 return SR_ERR_DEV_CLOSED;
220 if (!(devc = sdi->priv)) {
221 sr_err("sdi->priv was NULL.");
227 case SR_CONF_LIMIT_SAMPLES:
228 tmp_u64 = g_variant_get_uint64(data);
229 devc->limit_samples = tmp_u64;
232 case SR_CONF_DATALOG:
233 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
235 case SR_CONF_SPL_WEIGHT_FREQ:
236 tmp_str = g_variant_get_string(data, NULL);
237 if (!strcmp(tmp_str, "A"))
238 ret = cem_dt_885x_weight_freq_set(sdi,
239 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
240 else if (!strcmp(tmp_str, "C"))
241 ret = cem_dt_885x_weight_freq_set(sdi,
242 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
246 case SR_CONF_SPL_WEIGHT_TIME:
247 tmp_str = g_variant_get_string(data, NULL);
248 if (!strcmp(tmp_str, "F"))
249 ret = cem_dt_885x_weight_time_set(sdi,
250 SR_MQFLAG_SPL_TIME_WEIGHT_F);
251 else if (!strcmp(tmp_str, "S"))
252 ret = cem_dt_885x_weight_time_set(sdi,
253 SR_MQFLAG_SPL_TIME_WEIGHT_S);
257 case SR_CONF_HOLD_MAX:
258 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
259 ret = cem_dt_885x_holdmode_set(sdi, tmp);
261 case SR_CONF_HOLD_MIN:
262 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
263 ret = cem_dt_885x_holdmode_set(sdi, tmp);
265 case SR_CONF_SPL_MEASUREMENT_RANGE:
266 g_variant_get(data, "(tt)", &low, &high);
268 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
269 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
270 ret = cem_dt_885x_meas_range_set(sdi, low, high);
275 case SR_CONF_POWER_OFF:
276 if (g_variant_get_boolean(data))
277 ret = cem_dt_885x_power_off(sdi);
279 case SR_CONF_DATA_SOURCE:
280 tmp_str = g_variant_get_string(data, NULL);
281 if (!strcmp(tmp_str, "Live"))
282 devc->cur_data_source = DATA_SOURCE_LIVE;
283 else if (!strcmp(tmp_str, "Memory"))
284 devc->cur_data_source = DATA_SOURCE_MEMORY;
287 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
296 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
297 const struct sr_channel_group *cg)
299 GVariant *tuple, *range[2];
309 case SR_CONF_SCAN_OPTIONS:
310 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
311 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
313 case SR_CONF_DEVICE_OPTIONS:
314 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
315 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
322 case SR_CONF_DEVICE_OPTIONS:
323 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
324 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
326 case SR_CONF_SPL_WEIGHT_FREQ:
327 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
329 case SR_CONF_SPL_WEIGHT_TIME:
330 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
332 case SR_CONF_SPL_MEASUREMENT_RANGE:
333 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
334 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
335 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
336 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
337 tuple = g_variant_new_tuple(range, 2);
338 g_variant_builder_add_value(&gvb, tuple);
340 *data = g_variant_builder_end(&gvb);
342 case SR_CONF_DATA_SOURCE:
343 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
353 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
355 struct dev_context *devc;
356 struct sr_serial_dev_inst *serial;
358 if (sdi->status != SR_ST_ACTIVE)
359 return SR_ERR_DEV_CLOSED;
362 devc->state = ST_INIT;
363 devc->num_samples = 0;
366 std_session_send_df_header(sdi, LOG_PREFIX);
368 /* Poll every 100ms, or whenever some data comes in. */
370 serial_source_add(sdi->session, serial, G_IO_IN, 150,
371 cem_dt_885x_receive_data, (void *)sdi);
376 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
378 if (sdi->status != SR_ST_ACTIVE)
379 return SR_ERR_DEV_CLOSED;
381 return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
382 sdi->conn, LOG_PREFIX);
385 SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
386 .name = "cem-dt-885x",
387 .longname = "CEM DT-885x",
390 .cleanup = std_cleanup,
392 .dev_list = std_dev_list,
394 .config_get = config_get,
395 .config_set = config_set,
396 .config_list = config_list,
397 .dev_open = std_serial_dev_open,
398 .dev_close = std_serial_dev_close,
399 .dev_acquisition_start = dev_acquisition_start,
400 .dev_acquisition_stop = dev_acquisition_stop,