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 dev_context *devc;
75 struct sr_config *src;
76 struct sr_serial_dev_inst *serial;
77 struct sr_dev_inst *sdi;
84 for (l = options; l; l = l->next) {
86 if (src->key == SR_CONF_CONN)
87 conn = g_variant_get_string(src->data, NULL);
92 serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
94 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
98 start = g_get_monotonic_time();
99 while (g_get_monotonic_time() - start < MAX_SCAN_TIME_US) {
100 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
102 sdi = g_malloc0(sizeof(struct sr_dev_inst));
103 sdi->status = SR_ST_INACTIVE;
104 sdi->vendor = g_strdup("CEM");
105 sdi->model = g_strdup("DT-885x");
106 devc = g_malloc0(sizeof(struct dev_context));
107 devc->cur_mqflags = 0;
108 devc->recording = -1;
109 devc->cur_meas_range = 0;
110 devc->cur_data_source = DATA_SOURCE_LIVE;
111 devc->enable_data_source_memory = FALSE;
112 sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
113 sdi->inst_type = SR_INST_SERIAL;
115 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
116 devices = g_slist_append(devices, sdi);
119 /* It takes about 1ms for a byte to come in. */
123 serial_close(serial);
125 return std_scan_complete(di, devices);
128 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
129 const struct sr_channel_group *cg)
131 struct dev_context *devc;
144 case SR_CONF_LIMIT_SAMPLES:
145 *data = g_variant_new_uint64(devc->limit_samples);
147 case SR_CONF_DATALOG:
148 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
149 *data = g_variant_new_boolean(tmp);
151 case SR_CONF_SPL_WEIGHT_FREQ:
152 tmp = cem_dt_885x_weight_freq_get(sdi);
153 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
154 *data = g_variant_new_string("A");
155 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
156 *data = g_variant_new_string("C");
160 case SR_CONF_SPL_WEIGHT_TIME:
161 tmp = cem_dt_885x_weight_time_get(sdi);
162 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
163 *data = g_variant_new_string("F");
164 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
165 *data = g_variant_new_string("S");
169 case SR_CONF_HOLD_MAX:
170 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
171 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
173 case SR_CONF_HOLD_MIN:
174 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
175 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
177 case SR_CONF_SPL_MEASUREMENT_RANGE:
178 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
179 range[0] = g_variant_new_uint64(low);
180 range[1] = g_variant_new_uint64(high);
181 *data = g_variant_new_tuple(range, 2);
184 case SR_CONF_POWER_OFF:
185 *data = g_variant_new_boolean(FALSE);
187 case SR_CONF_DATA_SOURCE:
188 if (devc->cur_data_source == DATA_SOURCE_LIVE)
189 *data = g_variant_new_string("Live");
191 *data = g_variant_new_string("Memory");
200 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
201 const struct sr_channel_group *cg)
203 struct dev_context *devc;
204 uint64_t tmp_u64, low, high;
211 if (sdi->status != SR_ST_ACTIVE)
212 return SR_ERR_DEV_CLOSED;
218 case SR_CONF_LIMIT_SAMPLES:
219 tmp_u64 = g_variant_get_uint64(data);
220 devc->limit_samples = tmp_u64;
223 case SR_CONF_DATALOG:
224 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
226 case SR_CONF_SPL_WEIGHT_FREQ:
227 tmp_str = g_variant_get_string(data, NULL);
228 if (!strcmp(tmp_str, "A"))
229 ret = cem_dt_885x_weight_freq_set(sdi,
230 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
231 else if (!strcmp(tmp_str, "C"))
232 ret = cem_dt_885x_weight_freq_set(sdi,
233 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
237 case SR_CONF_SPL_WEIGHT_TIME:
238 tmp_str = g_variant_get_string(data, NULL);
239 if (!strcmp(tmp_str, "F"))
240 ret = cem_dt_885x_weight_time_set(sdi,
241 SR_MQFLAG_SPL_TIME_WEIGHT_F);
242 else if (!strcmp(tmp_str, "S"))
243 ret = cem_dt_885x_weight_time_set(sdi,
244 SR_MQFLAG_SPL_TIME_WEIGHT_S);
248 case SR_CONF_HOLD_MAX:
249 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
250 ret = cem_dt_885x_holdmode_set(sdi, tmp);
252 case SR_CONF_HOLD_MIN:
253 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
254 ret = cem_dt_885x_holdmode_set(sdi, tmp);
256 case SR_CONF_SPL_MEASUREMENT_RANGE:
257 g_variant_get(data, "(tt)", &low, &high);
259 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
260 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
261 ret = cem_dt_885x_meas_range_set(sdi, low, high);
266 case SR_CONF_POWER_OFF:
267 if (g_variant_get_boolean(data))
268 ret = cem_dt_885x_power_off(sdi);
270 case SR_CONF_DATA_SOURCE:
271 tmp_str = g_variant_get_string(data, NULL);
272 if (!strcmp(tmp_str, "Live"))
273 devc->cur_data_source = DATA_SOURCE_LIVE;
274 else if (!strcmp(tmp_str, "Memory"))
275 devc->cur_data_source = DATA_SOURCE_MEMORY;
278 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
287 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
288 const struct sr_channel_group *cg)
290 GVariant *tuple, *range[2];
300 case SR_CONF_SCAN_OPTIONS:
301 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
302 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
304 case SR_CONF_DEVICE_OPTIONS:
305 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
306 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
313 case SR_CONF_DEVICE_OPTIONS:
314 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
315 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
317 case SR_CONF_SPL_WEIGHT_FREQ:
318 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
320 case SR_CONF_SPL_WEIGHT_TIME:
321 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
323 case SR_CONF_SPL_MEASUREMENT_RANGE:
324 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
325 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
326 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
327 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
328 tuple = g_variant_new_tuple(range, 2);
329 g_variant_builder_add_value(&gvb, tuple);
331 *data = g_variant_builder_end(&gvb);
333 case SR_CONF_DATA_SOURCE:
334 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
344 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
346 struct dev_context *devc;
347 struct sr_serial_dev_inst *serial;
349 if (sdi->status != SR_ST_ACTIVE)
350 return SR_ERR_DEV_CLOSED;
353 devc->state = ST_INIT;
354 devc->num_samples = 0;
357 std_session_send_df_header(sdi);
359 /* Poll every 100ms, or whenever some data comes in. */
361 serial_source_add(sdi->session, serial, G_IO_IN, 150,
362 cem_dt_885x_receive_data, (void *)sdi);
367 static struct sr_dev_driver cem_dt_885x_driver_info = {
368 .name = "cem-dt-885x",
369 .longname = "CEM DT-885x",
372 .cleanup = std_cleanup,
374 .dev_list = std_dev_list,
376 .config_get = config_get,
377 .config_set = config_set,
378 .config_list = config_list,
379 .dev_open = std_serial_dev_open,
380 .dev_close = std_serial_dev_close,
381 .dev_acquisition_start = dev_acquisition_start,
382 .dev_acquisition_stop = std_serial_dev_acquisition_stop,
385 SR_REGISTER_DEV_DRIVER(cem_dt_885x_driver_info);