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;
117 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
118 devices = g_slist_append(devices, sdi);
121 /* It takes about 1ms for a byte to come in. */
125 serial_close(serial);
127 return std_scan_complete(di, devices);
130 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
131 const struct sr_channel_group *cg)
133 struct dev_context *devc;
146 case SR_CONF_LIMIT_SAMPLES:
147 *data = g_variant_new_uint64(devc->limit_samples);
149 case SR_CONF_DATALOG:
150 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
151 *data = g_variant_new_boolean(tmp);
153 case SR_CONF_SPL_WEIGHT_FREQ:
154 tmp = cem_dt_885x_weight_freq_get(sdi);
155 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
156 *data = g_variant_new_string("A");
157 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
158 *data = g_variant_new_string("C");
162 case SR_CONF_SPL_WEIGHT_TIME:
163 tmp = cem_dt_885x_weight_time_get(sdi);
164 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
165 *data = g_variant_new_string("F");
166 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
167 *data = g_variant_new_string("S");
171 case SR_CONF_HOLD_MAX:
172 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
173 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
175 case SR_CONF_HOLD_MIN:
176 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
177 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
179 case SR_CONF_SPL_MEASUREMENT_RANGE:
180 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
181 range[0] = g_variant_new_uint64(low);
182 range[1] = g_variant_new_uint64(high);
183 *data = g_variant_new_tuple(range, 2);
186 case SR_CONF_POWER_OFF:
187 *data = g_variant_new_boolean(FALSE);
189 case SR_CONF_DATA_SOURCE:
190 if (devc->cur_data_source == DATA_SOURCE_LIVE)
191 *data = g_variant_new_string("Live");
193 *data = g_variant_new_string("Memory");
202 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
203 const struct sr_channel_group *cg)
205 struct dev_context *devc;
206 uint64_t tmp_u64, low, high;
213 if (sdi->status != SR_ST_ACTIVE)
214 return SR_ERR_DEV_CLOSED;
220 case SR_CONF_LIMIT_SAMPLES:
221 tmp_u64 = g_variant_get_uint64(data);
222 devc->limit_samples = tmp_u64;
225 case SR_CONF_DATALOG:
226 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
228 case SR_CONF_SPL_WEIGHT_FREQ:
229 tmp_str = g_variant_get_string(data, NULL);
230 if (!strcmp(tmp_str, "A"))
231 ret = cem_dt_885x_weight_freq_set(sdi,
232 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
233 else if (!strcmp(tmp_str, "C"))
234 ret = cem_dt_885x_weight_freq_set(sdi,
235 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
239 case SR_CONF_SPL_WEIGHT_TIME:
240 tmp_str = g_variant_get_string(data, NULL);
241 if (!strcmp(tmp_str, "F"))
242 ret = cem_dt_885x_weight_time_set(sdi,
243 SR_MQFLAG_SPL_TIME_WEIGHT_F);
244 else if (!strcmp(tmp_str, "S"))
245 ret = cem_dt_885x_weight_time_set(sdi,
246 SR_MQFLAG_SPL_TIME_WEIGHT_S);
250 case SR_CONF_HOLD_MAX:
251 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
252 ret = cem_dt_885x_holdmode_set(sdi, tmp);
254 case SR_CONF_HOLD_MIN:
255 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
256 ret = cem_dt_885x_holdmode_set(sdi, tmp);
258 case SR_CONF_SPL_MEASUREMENT_RANGE:
259 g_variant_get(data, "(tt)", &low, &high);
261 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
262 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
263 ret = cem_dt_885x_meas_range_set(sdi, low, high);
268 case SR_CONF_POWER_OFF:
269 if (g_variant_get_boolean(data))
270 ret = cem_dt_885x_power_off(sdi);
272 case SR_CONF_DATA_SOURCE:
273 tmp_str = g_variant_get_string(data, NULL);
274 if (!strcmp(tmp_str, "Live"))
275 devc->cur_data_source = DATA_SOURCE_LIVE;
276 else if (!strcmp(tmp_str, "Memory"))
277 devc->cur_data_source = DATA_SOURCE_MEMORY;
280 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
289 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
290 const struct sr_channel_group *cg)
292 GVariant *tuple, *range[2];
302 case SR_CONF_SCAN_OPTIONS:
303 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
304 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
306 case SR_CONF_DEVICE_OPTIONS:
307 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
308 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
315 case SR_CONF_DEVICE_OPTIONS:
316 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
317 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
319 case SR_CONF_SPL_WEIGHT_FREQ:
320 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
322 case SR_CONF_SPL_WEIGHT_TIME:
323 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
325 case SR_CONF_SPL_MEASUREMENT_RANGE:
326 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
327 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
328 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
329 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
330 tuple = g_variant_new_tuple(range, 2);
331 g_variant_builder_add_value(&gvb, tuple);
333 *data = g_variant_builder_end(&gvb);
335 case SR_CONF_DATA_SOURCE:
336 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
346 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
348 struct dev_context *devc;
349 struct sr_serial_dev_inst *serial;
351 if (sdi->status != SR_ST_ACTIVE)
352 return SR_ERR_DEV_CLOSED;
355 devc->state = ST_INIT;
356 devc->num_samples = 0;
359 std_session_send_df_header(sdi, LOG_PREFIX);
361 /* Poll every 100ms, or whenever some data comes in. */
363 serial_source_add(sdi->session, serial, G_IO_IN, 150,
364 cem_dt_885x_receive_data, (void *)sdi);
369 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
371 if (sdi->status != SR_ST_ACTIVE)
372 return SR_ERR_DEV_CLOSED;
374 return std_serial_dev_acquisition_stop(sdi, std_serial_dev_close,
375 sdi->conn, LOG_PREFIX);
378 static struct sr_dev_driver cem_dt_885x_driver_info = {
379 .name = "cem-dt-885x",
380 .longname = "CEM DT-885x",
383 .cleanup = std_cleanup,
385 .dev_list = std_dev_list,
387 .config_get = config_get,
388 .config_set = config_set,
389 .config_list = config_list,
390 .dev_open = std_serial_dev_open,
391 .dev_close = std_serial_dev_close,
392 .dev_acquisition_start = dev_acquisition_start,
393 .dev_acquisition_stop = dev_acquisition_stop,
396 SR_REGISTER_DEV_DRIVER(cem_dt_885x_driver_info);