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,
129 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
131 struct dev_context *devc;
143 case SR_CONF_LIMIT_SAMPLES:
144 *data = g_variant_new_uint64(devc->limit_samples);
146 case SR_CONF_DATALOG:
147 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
148 *data = g_variant_new_boolean(tmp);
150 case SR_CONF_SPL_WEIGHT_FREQ:
151 tmp = cem_dt_885x_weight_freq_get(sdi);
152 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
153 *data = g_variant_new_string("A");
154 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
155 *data = g_variant_new_string("C");
159 case SR_CONF_SPL_WEIGHT_TIME:
160 tmp = cem_dt_885x_weight_time_get(sdi);
161 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
162 *data = g_variant_new_string("F");
163 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
164 *data = g_variant_new_string("S");
168 case SR_CONF_HOLD_MAX:
169 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
170 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
172 case SR_CONF_HOLD_MIN:
173 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
174 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
176 case SR_CONF_SPL_MEASUREMENT_RANGE:
177 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK)
178 *data = std_gvar_tuple_u64(low, high);
180 case SR_CONF_POWER_OFF:
181 *data = g_variant_new_boolean(FALSE);
183 case SR_CONF_DATA_SOURCE:
184 if (devc->cur_data_source == DATA_SOURCE_LIVE)
185 *data = g_variant_new_string("Live");
187 *data = g_variant_new_string("Memory");
196 static int config_set(uint32_t key, GVariant *data,
197 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
199 struct dev_context *devc;
209 case SR_CONF_LIMIT_SAMPLES:
210 tmp_u64 = g_variant_get_uint64(data);
211 devc->limit_samples = tmp_u64;
214 case SR_CONF_DATALOG:
215 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
217 case SR_CONF_SPL_WEIGHT_FREQ:
218 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(weight_freq))) < 0)
220 return cem_dt_885x_weight_freq_set(sdi, (weight_freq[idx][0] == 'A') ?
221 SR_MQFLAG_SPL_FREQ_WEIGHT_A : SR_MQFLAG_SPL_FREQ_WEIGHT_C);
222 case SR_CONF_SPL_WEIGHT_TIME:
223 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(weight_time))) < 0)
225 return cem_dt_885x_weight_time_set(sdi, (weight_time[idx][0] == 'F') ?
226 SR_MQFLAG_SPL_TIME_WEIGHT_F : SR_MQFLAG_SPL_TIME_WEIGHT_S);
227 case SR_CONF_HOLD_MAX:
228 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
229 ret = cem_dt_885x_holdmode_set(sdi, tmp);
231 case SR_CONF_HOLD_MIN:
232 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
233 ret = cem_dt_885x_holdmode_set(sdi, tmp);
235 case SR_CONF_SPL_MEASUREMENT_RANGE:
236 if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(meas_ranges))) < 0)
238 return cem_dt_885x_meas_range_set(sdi, meas_ranges[idx][0], meas_ranges[idx][1]);
239 case SR_CONF_POWER_OFF:
240 if (g_variant_get_boolean(data))
241 ret = cem_dt_885x_power_off(sdi);
243 case SR_CONF_DATA_SOURCE:
244 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(data_sources))) < 0)
246 devc->cur_data_source = idx;
247 devc->enable_data_source_memory = (idx == DATA_SOURCE_MEMORY);
256 static int config_list(uint32_t key, GVariant **data,
257 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
260 case SR_CONF_SCAN_OPTIONS:
261 case SR_CONF_DEVICE_OPTIONS:
262 return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
263 case SR_CONF_SPL_WEIGHT_FREQ:
264 *data = g_variant_new_strv(ARRAY_AND_SIZE(weight_freq));
266 case SR_CONF_SPL_WEIGHT_TIME:
267 *data = g_variant_new_strv(ARRAY_AND_SIZE(weight_time));
269 case SR_CONF_SPL_MEASUREMENT_RANGE:
270 *data = std_gvar_tuple_array(ARRAY_AND_SIZE(meas_ranges));
272 case SR_CONF_DATA_SOURCE:
273 *data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources));
282 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
284 struct dev_context *devc;
285 struct sr_serial_dev_inst *serial;
288 devc->state = ST_INIT;
289 devc->num_samples = 0;
292 std_session_send_df_header(sdi);
295 serial_source_add(sdi->session, serial, G_IO_IN, 150,
296 cem_dt_885x_receive_data, (void *)sdi);
301 static struct sr_dev_driver cem_dt_885x_driver_info = {
302 .name = "cem-dt-885x",
303 .longname = "CEM DT-885x",
306 .cleanup = std_cleanup,
308 .dev_list = std_dev_list,
309 .dev_clear = std_dev_clear,
310 .config_get = config_get,
311 .config_set = config_set,
312 .config_list = config_list,
313 .dev_open = std_serial_dev_open,
314 .dev_close = std_serial_dev_close,
315 .dev_acquisition_start = dev_acquisition_start,
316 .dev_acquisition_stop = std_serial_dev_acquisition_stop,
319 SR_REGISTER_DEV_DRIVER(cem_dt_885x_driver_info);