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 devopts[] = {
32 SR_CONF_SOUNDLEVELMETER,
34 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
37 static const uint32_t devopts_global[] = {
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;
70 static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
73 static int init(struct sr_context *sr_ctx)
75 return std_init(sr_ctx, di, LOG_PREFIX);
78 static GSList *scan(GSList *options)
80 struct drv_context *drvc;
81 struct dev_context *devc;
82 struct sr_config *src;
83 struct sr_serial_dev_inst *serial;
84 struct sr_dev_inst *sdi;
85 struct sr_channel *ch;
92 for (l = options; l; l = l->next) {
94 if (src->key == SR_CONF_CONN)
95 conn = g_variant_get_string(src->data, NULL);
100 if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
103 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
108 start = g_get_monotonic_time();
109 while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
110 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
112 if (!(sdi = sr_dev_inst_new(SR_ST_INACTIVE, "CEM",
116 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
117 sr_dbg("Device context malloc failed.");
120 devc->cur_mqflags = 0;
121 devc->recording = -1;
122 devc->cur_meas_range = 0;
123 devc->cur_data_source = DATA_SOURCE_LIVE;
124 devc->enable_data_source_memory = FALSE;
126 if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
129 sdi->inst_type = SR_INST_SERIAL;
132 if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL")))
134 sdi->channels = g_slist_append(sdi->channels, ch);
135 drvc->instances = g_slist_append(drvc->instances, sdi);
136 devices = g_slist_append(devices, sdi);
139 /* It takes about 1ms for a byte to come in. */
143 serial_close(serial);
148 static GSList *dev_list(void)
150 return ((struct drv_context *)(di->priv))->instances;
153 static int dev_open(struct sr_dev_inst *sdi)
155 struct sr_serial_dev_inst *serial;
158 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
161 sdi->status = SR_ST_ACTIVE;
166 static int cleanup(void)
168 return std_dev_clear(di, NULL);
171 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
172 const struct sr_channel_group *cg)
174 struct dev_context *devc;
187 case SR_CONF_LIMIT_SAMPLES:
188 *data = g_variant_new_uint64(devc->limit_samples);
190 case SR_CONF_DATALOG:
191 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
192 *data = g_variant_new_boolean(tmp);
194 case SR_CONF_SPL_WEIGHT_FREQ:
195 tmp = cem_dt_885x_weight_freq_get(sdi);
196 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
197 *data = g_variant_new_string("A");
198 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
199 *data = g_variant_new_string("C");
203 case SR_CONF_SPL_WEIGHT_TIME:
204 tmp = cem_dt_885x_weight_time_get(sdi);
205 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
206 *data = g_variant_new_string("F");
207 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
208 *data = g_variant_new_string("S");
212 case SR_CONF_HOLD_MAX:
213 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
214 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
216 case SR_CONF_HOLD_MIN:
217 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
218 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
220 case SR_CONF_SPL_MEASUREMENT_RANGE:
221 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
222 range[0] = g_variant_new_uint64(low);
223 range[1] = g_variant_new_uint64(high);
224 *data = g_variant_new_tuple(range, 2);
227 case SR_CONF_POWER_OFF:
228 *data = g_variant_new_boolean(FALSE);
230 case SR_CONF_DATA_SOURCE:
231 if (devc->cur_data_source == DATA_SOURCE_LIVE)
232 *data = g_variant_new_string("Live");
234 *data = g_variant_new_string("Memory");
243 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
244 const struct sr_channel_group *cg)
246 struct dev_context *devc;
247 uint64_t tmp_u64, low, high;
254 if (sdi->status != SR_ST_ACTIVE)
255 return SR_ERR_DEV_CLOSED;
257 if (!(devc = sdi->priv)) {
258 sr_err("sdi->priv was NULL.");
264 case SR_CONF_LIMIT_SAMPLES:
265 tmp_u64 = g_variant_get_uint64(data);
266 devc->limit_samples = tmp_u64;
269 case SR_CONF_DATALOG:
270 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
272 case SR_CONF_SPL_WEIGHT_FREQ:
273 tmp_str = g_variant_get_string(data, NULL);
274 if (!strcmp(tmp_str, "A"))
275 ret = cem_dt_885x_weight_freq_set(sdi,
276 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
277 else if (!strcmp(tmp_str, "C"))
278 ret = cem_dt_885x_weight_freq_set(sdi,
279 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
283 case SR_CONF_SPL_WEIGHT_TIME:
284 tmp_str = g_variant_get_string(data, NULL);
285 if (!strcmp(tmp_str, "F"))
286 ret = cem_dt_885x_weight_time_set(sdi,
287 SR_MQFLAG_SPL_TIME_WEIGHT_F);
288 else if (!strcmp(tmp_str, "S"))
289 ret = cem_dt_885x_weight_time_set(sdi,
290 SR_MQFLAG_SPL_TIME_WEIGHT_S);
294 case SR_CONF_HOLD_MAX:
295 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
296 ret = cem_dt_885x_holdmode_set(sdi, tmp);
298 case SR_CONF_HOLD_MIN:
299 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
300 ret = cem_dt_885x_holdmode_set(sdi, tmp);
302 case SR_CONF_SPL_MEASUREMENT_RANGE:
303 g_variant_get(data, "(tt)", &low, &high);
305 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
306 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
307 ret = cem_dt_885x_meas_range_set(sdi, low, high);
312 case SR_CONF_POWER_OFF:
313 if (g_variant_get_boolean(data))
314 ret = cem_dt_885x_power_off(sdi);
316 case SR_CONF_DATA_SOURCE:
317 tmp_str = g_variant_get_string(data, NULL);
318 if (!strcmp(tmp_str, "Live"))
319 devc->cur_data_source = DATA_SOURCE_LIVE;
320 else if (!strcmp(tmp_str, "Memory"))
321 devc->cur_data_source = DATA_SOURCE_MEMORY;
324 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
333 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
334 const struct sr_channel_group *cg)
336 GVariant *tuple, *range[2];
346 case SR_CONF_SCAN_OPTIONS:
347 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
348 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
350 case SR_CONF_DEVICE_OPTIONS:
351 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
352 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
359 case SR_CONF_DEVICE_OPTIONS:
360 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
361 devopts_global, ARRAY_SIZE(devopts_global), sizeof(uint32_t));
362 case SR_CONF_SPL_WEIGHT_FREQ:
363 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
365 case SR_CONF_SPL_WEIGHT_TIME:
366 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
368 case SR_CONF_SPL_MEASUREMENT_RANGE:
369 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
370 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
371 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
372 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
373 tuple = g_variant_new_tuple(range, 2);
374 g_variant_builder_add_value(&gvb, tuple);
376 *data = g_variant_builder_end(&gvb);
378 case SR_CONF_DATA_SOURCE:
379 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
389 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
391 struct dev_context *devc;
392 struct sr_serial_dev_inst *serial;
394 if (sdi->status != SR_ST_ACTIVE)
395 return SR_ERR_DEV_CLOSED;
397 if (!(devc = sdi->priv)) {
398 sr_err("sdi->priv was NULL.");
402 devc->cb_data = cb_data;
403 devc->state = ST_INIT;
404 devc->num_samples = 0;
407 /* Send header packet to the session bus. */
408 std_session_send_df_header(cb_data, LOG_PREFIX);
410 /* Poll every 100ms, or whenever some data comes in. */
412 serial_source_add(sdi->session, serial, G_IO_IN, 150,
413 cem_dt_885x_receive_data, (void *)sdi);
418 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
420 if (sdi->status != SR_ST_ACTIVE)
421 return SR_ERR_DEV_CLOSED;
423 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
424 sdi->conn, LOG_PREFIX);
427 SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
428 .name = "cem-dt-885x",
429 .longname = "CEM DT-885x",
434 .dev_list = dev_list,
436 .config_get = config_get,
437 .config_set = config_set,
438 .config_list = config_list,
439 .dev_open = dev_open,
440 .dev_close = std_serial_dev_close,
441 .dev_acquisition_start = dev_acquisition_start,
442 .dev_acquisition_stop = dev_acquisition_stop,