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/>.
23 #define SERIALCOMM "9600/8n1"
24 /* 23ms is the longest interval between tokens. */
25 #define MAX_SCAN_TIME 25 * 1000
27 static const uint32_t scanopts[] = {
31 static const uint32_t drvopts[] = {
32 SR_CONF_SOUNDLEVELMETER,
35 static const uint32_t devopts[] = {
36 SR_CONF_CONTINUOUS | SR_CONF_SET,
37 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
38 SR_CONF_SPL_WEIGHT_FREQ | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
39 SR_CONF_SPL_WEIGHT_TIME | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
40 SR_CONF_SPL_MEASUREMENT_RANGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
41 SR_CONF_DATALOG | SR_CONF_GET | SR_CONF_SET,
42 SR_CONF_HOLD_MAX | SR_CONF_GET | SR_CONF_SET,
43 SR_CONF_HOLD_MIN | SR_CONF_GET | SR_CONF_SET,
44 SR_CONF_POWER_OFF | SR_CONF_GET | SR_CONF_SET,
45 SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
48 static const char *weight_freq[] = {
53 static const char *weight_time[] = {
58 static const uint64_t meas_ranges[][2] = {
65 static const char *data_sources[] = {
69 SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
72 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
74 return std_init(sr_ctx, di, LOG_PREFIX);
77 static GSList *scan(struct sr_dev_driver *di, GSList *options)
79 struct drv_context *drvc;
80 struct dev_context *devc;
81 struct sr_config *src;
82 struct sr_serial_dev_inst *serial;
83 struct sr_dev_inst *sdi;
90 for (l = options; l; l = l->next) {
92 if (src->key == SR_CONF_CONN)
93 conn = g_variant_get_string(src->data, NULL);
98 serial = sr_serial_dev_inst_new(conn, SERIALCOMM);
100 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
105 start = g_get_monotonic_time();
106 while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
107 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
109 sdi = g_malloc0(sizeof(struct sr_dev_inst));
110 sdi->status = SR_ST_INACTIVE;
111 sdi->vendor = g_strdup("CEM");
112 sdi->model = g_strdup("DT-885x");
113 devc = g_malloc0(sizeof(struct dev_context));
114 devc->cur_mqflags = 0;
115 devc->recording = -1;
116 devc->cur_meas_range = 0;
117 devc->cur_data_source = DATA_SOURCE_LIVE;
118 devc->enable_data_source_memory = FALSE;
119 sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM);
120 sdi->inst_type = SR_INST_SERIAL;
123 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "SPL");
124 drvc->instances = g_slist_append(drvc->instances, sdi);
125 devices = g_slist_append(devices, sdi);
128 /* It takes about 1ms for a byte to come in. */
132 serial_close(serial);
137 static GSList *dev_list(const struct sr_dev_driver *di)
139 return ((struct drv_context *)(di->priv))->instances;
142 static int dev_open(struct sr_dev_inst *sdi)
144 struct sr_serial_dev_inst *serial;
147 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
150 sdi->status = SR_ST_ACTIVE;
155 static int cleanup(const struct sr_dev_driver *di)
157 return std_dev_clear(di, NULL);
160 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
161 const struct sr_channel_group *cg)
163 struct dev_context *devc;
176 case SR_CONF_LIMIT_SAMPLES:
177 *data = g_variant_new_uint64(devc->limit_samples);
179 case SR_CONF_DATALOG:
180 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
181 *data = g_variant_new_boolean(tmp);
183 case SR_CONF_SPL_WEIGHT_FREQ:
184 tmp = cem_dt_885x_weight_freq_get(sdi);
185 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
186 *data = g_variant_new_string("A");
187 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
188 *data = g_variant_new_string("C");
192 case SR_CONF_SPL_WEIGHT_TIME:
193 tmp = cem_dt_885x_weight_time_get(sdi);
194 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
195 *data = g_variant_new_string("F");
196 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
197 *data = g_variant_new_string("S");
201 case SR_CONF_HOLD_MAX:
202 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
203 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
205 case SR_CONF_HOLD_MIN:
206 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
207 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
209 case SR_CONF_SPL_MEASUREMENT_RANGE:
210 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
211 range[0] = g_variant_new_uint64(low);
212 range[1] = g_variant_new_uint64(high);
213 *data = g_variant_new_tuple(range, 2);
216 case SR_CONF_POWER_OFF:
217 *data = g_variant_new_boolean(FALSE);
219 case SR_CONF_DATA_SOURCE:
220 if (devc->cur_data_source == DATA_SOURCE_LIVE)
221 *data = g_variant_new_string("Live");
223 *data = g_variant_new_string("Memory");
232 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
233 const struct sr_channel_group *cg)
235 struct dev_context *devc;
236 uint64_t tmp_u64, low, high;
243 if (sdi->status != SR_ST_ACTIVE)
244 return SR_ERR_DEV_CLOSED;
246 if (!(devc = sdi->priv)) {
247 sr_err("sdi->priv was NULL.");
253 case SR_CONF_LIMIT_SAMPLES:
254 tmp_u64 = g_variant_get_uint64(data);
255 devc->limit_samples = tmp_u64;
258 case SR_CONF_DATALOG:
259 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
261 case SR_CONF_SPL_WEIGHT_FREQ:
262 tmp_str = g_variant_get_string(data, NULL);
263 if (!strcmp(tmp_str, "A"))
264 ret = cem_dt_885x_weight_freq_set(sdi,
265 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
266 else if (!strcmp(tmp_str, "C"))
267 ret = cem_dt_885x_weight_freq_set(sdi,
268 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
272 case SR_CONF_SPL_WEIGHT_TIME:
273 tmp_str = g_variant_get_string(data, NULL);
274 if (!strcmp(tmp_str, "F"))
275 ret = cem_dt_885x_weight_time_set(sdi,
276 SR_MQFLAG_SPL_TIME_WEIGHT_F);
277 else if (!strcmp(tmp_str, "S"))
278 ret = cem_dt_885x_weight_time_set(sdi,
279 SR_MQFLAG_SPL_TIME_WEIGHT_S);
283 case SR_CONF_HOLD_MAX:
284 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
285 ret = cem_dt_885x_holdmode_set(sdi, tmp);
287 case SR_CONF_HOLD_MIN:
288 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
289 ret = cem_dt_885x_holdmode_set(sdi, tmp);
291 case SR_CONF_SPL_MEASUREMENT_RANGE:
292 g_variant_get(data, "(tt)", &low, &high);
294 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
295 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
296 ret = cem_dt_885x_meas_range_set(sdi, low, high);
301 case SR_CONF_POWER_OFF:
302 if (g_variant_get_boolean(data))
303 ret = cem_dt_885x_power_off(sdi);
305 case SR_CONF_DATA_SOURCE:
306 tmp_str = g_variant_get_string(data, NULL);
307 if (!strcmp(tmp_str, "Live"))
308 devc->cur_data_source = DATA_SOURCE_LIVE;
309 else if (!strcmp(tmp_str, "Memory"))
310 devc->cur_data_source = DATA_SOURCE_MEMORY;
313 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
322 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
323 const struct sr_channel_group *cg)
325 GVariant *tuple, *range[2];
335 case SR_CONF_SCAN_OPTIONS:
336 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
337 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
339 case SR_CONF_DEVICE_OPTIONS:
340 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
341 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
348 case SR_CONF_DEVICE_OPTIONS:
349 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
350 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
351 case SR_CONF_SPL_WEIGHT_FREQ:
352 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
354 case SR_CONF_SPL_WEIGHT_TIME:
355 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
357 case SR_CONF_SPL_MEASUREMENT_RANGE:
358 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
359 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
360 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
361 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
362 tuple = g_variant_new_tuple(range, 2);
363 g_variant_builder_add_value(&gvb, tuple);
365 *data = g_variant_builder_end(&gvb);
367 case SR_CONF_DATA_SOURCE:
368 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
378 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
380 struct dev_context *devc;
381 struct sr_serial_dev_inst *serial;
383 if (sdi->status != SR_ST_ACTIVE)
384 return SR_ERR_DEV_CLOSED;
386 if (!(devc = sdi->priv)) {
387 sr_err("sdi->priv was NULL.");
391 devc->cb_data = cb_data;
392 devc->state = ST_INIT;
393 devc->num_samples = 0;
396 /* Send header packet to the session bus. */
397 std_session_send_df_header(cb_data, LOG_PREFIX);
399 /* Poll every 100ms, or whenever some data comes in. */
401 serial_source_add(sdi->session, serial, G_IO_IN, 150,
402 cem_dt_885x_receive_data, (void *)sdi);
407 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
409 if (sdi->status != SR_ST_ACTIVE)
410 return SR_ERR_DEV_CLOSED;
412 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
413 sdi->conn, LOG_PREFIX);
416 SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
417 .name = "cem-dt-885x",
418 .longname = "CEM DT-885x",
423 .dev_list = dev_list,
425 .config_get = config_get,
426 .config_set = config_set,
427 .config_list = config_list,
428 .dev_open = dev_open,
429 .dev_close = std_serial_dev_close,
430 .dev_acquisition_start = dev_acquisition_start,
431 .dev_acquisition_stop = dev_acquisition_stop,