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 int32_t hwopts[] = {
31 static const int32_t hwcaps[] = {
32 SR_CONF_SOUNDLEVELMETER,
33 SR_CONF_LIMIT_SAMPLES,
35 SR_CONF_SPL_WEIGHT_FREQ,
36 SR_CONF_SPL_WEIGHT_TIME,
37 SR_CONF_SPL_MEASUREMENT_RANGE,
45 static const char *weight_freq[] = {
50 static const char *weight_time[] = {
55 static const uint64_t meas_ranges[][2] = {
62 static const char *data_sources[] = {
66 SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
67 static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
70 static int init(struct sr_context *sr_ctx)
72 return std_init(sr_ctx, di, LOG_PREFIX);
75 static GSList *scan(GSList *options)
77 struct drv_context *drvc;
78 struct dev_context *devc;
79 struct sr_config *src;
80 struct sr_serial_dev_inst *serial;
81 struct sr_dev_inst *sdi;
82 struct sr_probe *probe;
89 for (l = options; l; l = l->next) {
91 if (src->key == SR_CONF_CONN)
92 conn = g_variant_get_string(src->data, NULL);
97 if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
100 if (serial_open(serial, SERIAL_RDONLY | SERIAL_NONBLOCK) != SR_OK)
105 start = g_get_monotonic_time();
106 while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
107 if (serial_read(serial, &c, 1) == 1 && c == 0xa5) {
109 if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "CEM",
113 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
114 sr_dbg("Device context malloc failed.");
117 devc->cur_mqflags = 0;
118 devc->recording = -1;
119 devc->cur_meas_range = 0;
120 devc->cur_data_source = DATA_SOURCE_LIVE;
122 if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
125 sdi->inst_type = SR_INST_SERIAL;
128 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "SPL")))
130 sdi->probes = g_slist_append(sdi->probes, probe);
131 drvc->instances = g_slist_append(drvc->instances, sdi);
132 devices = g_slist_append(devices, sdi);
135 /* It takes about 1ms for a byte to come in. */
139 serial_close(serial);
144 static GSList *dev_list(void)
146 struct drv_context *drvc;
150 return drvc->instances;
153 static int dev_clear(void)
155 return std_dev_clear(di, NULL);
158 static int dev_open(struct sr_dev_inst *sdi)
160 struct sr_serial_dev_inst *serial;
163 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
166 sdi->status = SR_ST_ACTIVE;
171 static int dev_close(struct sr_dev_inst *sdi)
173 struct sr_serial_dev_inst *serial;
176 if (serial && serial->fd != -1) {
177 serial_close(serial);
178 sdi->status = SR_ST_INACTIVE;
184 static int cleanup(void)
189 static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
191 struct dev_context *devc;
202 case SR_CONF_LIMIT_SAMPLES:
203 *data = g_variant_new_uint64(devc->limit_samples);
205 case SR_CONF_DATALOG:
206 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
207 *data = g_variant_new_boolean(tmp);
209 case SR_CONF_SPL_WEIGHT_FREQ:
210 tmp = cem_dt_885x_weight_freq_get(sdi);
211 if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_A)
212 *data = g_variant_new_string("A");
213 else if (tmp == SR_MQFLAG_SPL_FREQ_WEIGHT_C)
214 *data = g_variant_new_string("C");
218 case SR_CONF_SPL_WEIGHT_TIME:
219 tmp = cem_dt_885x_weight_time_get(sdi);
220 if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
221 *data = g_variant_new_string("F");
222 else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
223 *data = g_variant_new_string("S");
227 case SR_CONF_HOLD_MAX:
228 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
229 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MAX);
231 case SR_CONF_HOLD_MIN:
232 if ((ret = cem_dt_885x_holdmode_get(sdi, &tmp)) == SR_OK)
233 *data = g_variant_new_boolean(tmp == SR_MQFLAG_MIN);
235 case SR_CONF_SPL_MEASUREMENT_RANGE:
236 if ((ret = cem_dt_885x_meas_range_get(sdi, &low, &high)) == SR_OK) {
237 range[0] = g_variant_new_uint64(low);
238 range[1] = g_variant_new_uint64(high);
239 *data = g_variant_new_tuple(range, 2);
242 case SR_CONF_POWER_OFF:
243 *data = g_variant_new_boolean(FALSE);
245 case SR_CONF_DATA_SOURCE:
246 if (devc->cur_data_source == DATA_SOURCE_LIVE)
247 *data = g_variant_new_string("Live");
249 *data = g_variant_new_string("Memory");
258 static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
260 struct dev_context *devc;
261 uint64_t tmp_u64, low, high;
266 if (sdi->status != SR_ST_ACTIVE)
267 return SR_ERR_DEV_CLOSED;
269 if (!(devc = sdi->priv)) {
270 sr_err("sdi->priv was NULL.");
276 case SR_CONF_LIMIT_SAMPLES:
277 tmp_u64 = g_variant_get_uint64(data);
278 devc->limit_samples = tmp_u64;
281 case SR_CONF_DATALOG:
282 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
284 case SR_CONF_SPL_WEIGHT_FREQ:
285 tmp_str = g_variant_get_string(data, NULL);
286 if (!strcmp(tmp_str, "A"))
287 ret = cem_dt_885x_weight_freq_set(sdi,
288 SR_MQFLAG_SPL_FREQ_WEIGHT_A);
289 else if (!strcmp(tmp_str, "C"))
290 ret = cem_dt_885x_weight_freq_set(sdi,
291 SR_MQFLAG_SPL_FREQ_WEIGHT_C);
295 case SR_CONF_SPL_WEIGHT_TIME:
296 tmp_str = g_variant_get_string(data, NULL);
297 if (!strcmp(tmp_str, "F"))
298 ret = cem_dt_885x_weight_time_set(sdi,
299 SR_MQFLAG_SPL_TIME_WEIGHT_F);
300 else if (!strcmp(tmp_str, "S"))
301 ret = cem_dt_885x_weight_time_set(sdi,
302 SR_MQFLAG_SPL_TIME_WEIGHT_S);
306 case SR_CONF_HOLD_MAX:
307 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MAX : 0;
308 ret = cem_dt_885x_holdmode_set(sdi, tmp);
310 case SR_CONF_HOLD_MIN:
311 tmp = g_variant_get_boolean(data) ? SR_MQFLAG_MIN : 0;
312 ret = cem_dt_885x_holdmode_set(sdi, tmp);
314 case SR_CONF_SPL_MEASUREMENT_RANGE:
315 g_variant_get(data, "(tt)", &low, &high);
317 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
318 if (meas_ranges[i][0] == low && meas_ranges[i][1] == high) {
319 ret = cem_dt_885x_meas_range_set(sdi, low, high);
324 case SR_CONF_POWER_OFF:
325 if (g_variant_get_boolean(data))
326 ret = cem_dt_885x_power_off(sdi);
328 case SR_CONF_DATA_SOURCE:
329 tmp_str = g_variant_get_string(data, NULL);
330 if (!strcmp(tmp_str, "Live"))
331 devc->cur_data_source = DATA_SOURCE_LIVE;
332 else if (!strcmp(tmp_str, "Memory"))
333 devc->cur_data_source = DATA_SOURCE_MEMORY;
344 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
346 GVariant *tuple, *range[2];
355 case SR_CONF_SCAN_OPTIONS:
356 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
357 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
359 case SR_CONF_DEVICE_OPTIONS:
360 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
361 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
363 case SR_CONF_SPL_WEIGHT_FREQ:
364 *data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
366 case SR_CONF_SPL_WEIGHT_TIME:
367 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
369 case SR_CONF_SPL_MEASUREMENT_RANGE:
370 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
371 for (i = 0; i < ARRAY_SIZE(meas_ranges); i++) {
372 range[0] = g_variant_new_uint64(meas_ranges[i][0]);
373 range[1] = g_variant_new_uint64(meas_ranges[i][1]);
374 tuple = g_variant_new_tuple(range, 2);
375 g_variant_builder_add_value(&gvb, tuple);
377 *data = g_variant_builder_end(&gvb);
379 case SR_CONF_DATA_SOURCE:
380 *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 sr_source_add(serial->fd, G_IO_IN, 150, cem_dt_885x_receive_data,
418 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
422 if (sdi->status != SR_ST_ACTIVE)
423 return SR_ERR_DEV_CLOSED;
425 return std_dev_acquisition_stop_serial(sdi, cb_data, dev_close,
426 sdi->conn, LOG_PREFIX);
431 SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
432 .name = "cem-dt-885x",
433 .longname = "CEM DT-885x",
438 .dev_list = dev_list,
439 .dev_clear = dev_clear,
440 .config_get = config_get,
441 .config_set = config_set,
442 .config_list = config_list,
443 .dev_open = dev_open,
444 .dev_close = dev_close,
445 .dev_acquisition_start = dev_acquisition_start,
446 .dev_acquisition_stop = dev_acquisition_stop,