]> sigrok.org Git - libsigrok.git/blame - src/hardware/cem-dt-885x/api.c
cem-dt-885x: Publish driver options.
[libsigrok.git] / src / hardware / cem-dt-885x / api.c
CommitLineData
8fa9368e
BV
1/*
2 * This file is part of the libsigrok project.
3 *
4 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
5 *
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.
10 *
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.
15 *
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/>.
18 */
19
be733919 20#include <string.h>
8fa9368e
BV
21#include "protocol.h"
22
7fb8279c
BV
23#define SERIALCOMM "9600/8n1"
24/* 23ms is the longest interval between tokens. */
25#define MAX_SCAN_TIME 25 * 1000
26
a0e0bb41 27static const uint32_t scanopts[] = {
7fb8279c
BV
28 SR_CONF_CONN,
29};
30
f254bc4b 31static const uint32_t devopts[] = {
7fb8279c 32 SR_CONF_SOUNDLEVELMETER,
7fb8279c 33 SR_CONF_CONTINUOUS,
5827f61b 34 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
d7125bfa
BV
35};
36
37static const uint32_t devopts_global[] = {
5827f61b
BV
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,
7fb8279c
BV
46};
47
be733919
BV
48static const char *weight_freq[] = {
49 "A",
50 "C",
51};
7fb8279c 52
1487ce4f
BV
53static const char *weight_time[] = {
54 "F",
55 "S",
56};
57
f157b2ee
BV
58static const uint64_t meas_ranges[][2] = {
59 { 30, 130 },
60 { 30, 80 },
61 { 50, 100 },
62 { 80, 130 },
63};
64
662172d4
BV
65static const char *data_sources[] = {
66 "Live",
67 "Memory",
68};
8fa9368e
BV
69SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
70static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
71
72
73static int init(struct sr_context *sr_ctx)
74{
75 return std_init(sr_ctx, di, LOG_PREFIX);
76}
77
78static GSList *scan(GSList *options)
79{
80 struct drv_context *drvc;
7fb8279c
BV
81 struct dev_context *devc;
82 struct sr_config *src;
83 struct sr_serial_dev_inst *serial;
84 struct sr_dev_inst *sdi;
ba7dd8bb 85 struct sr_channel *ch;
7fb8279c
BV
86 GSList *l, *devices;
87 gint64 start;
88 const char *conn;
89 unsigned char c;
90
91 conn = NULL;
92 for (l = options; l; l = l->next) {
93 src = l->data;
94 if (src->key == SR_CONF_CONN)
95 conn = g_variant_get_string(src->data, NULL);
96 }
97 if (!conn)
98 return NULL;
99
100 if (!(serial = sr_serial_dev_inst_new(conn, SERIALCOMM)))
101 return NULL;
8fa9368e 102
d7b269da 103 if (serial_open(serial, SERIAL_RDONLY) != SR_OK)
7fb8279c 104 return NULL;
8fa9368e
BV
105
106 devices = NULL;
107 drvc = di->priv;
7fb8279c
BV
108 start = g_get_monotonic_time();
109 while (g_get_monotonic_time() - start < MAX_SCAN_TIME) {
d7b269da 110 if (serial_read_nonblocking(serial, &c, 1) == 1 && c == 0xa5) {
7fb8279c 111 /* Found one. */
aed4ad0b 112 if (!(sdi = sr_dev_inst_new(SR_ST_INACTIVE, "CEM",
7fb8279c
BV
113 "DT-885x", NULL)))
114 return NULL;
115
116 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
117 sr_dbg("Device context malloc failed.");
118 return NULL;
119 }
e1af0e85
BV
120 devc->cur_mqflags = 0;
121 devc->recording = -1;
f157b2ee 122 devc->cur_meas_range = 0;
662172d4 123 devc->cur_data_source = DATA_SOURCE_LIVE;
cea26f6e 124 devc->enable_data_source_memory = FALSE;
7fb8279c
BV
125
126 if (!(sdi->conn = sr_serial_dev_inst_new(conn, SERIALCOMM)))
127 return NULL;
128
129 sdi->inst_type = SR_INST_SERIAL;
130 sdi->priv = devc;
131 sdi->driver = di;
3f239f08 132 if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "SPL")))
7fb8279c 133 return NULL;
ba7dd8bb 134 sdi->channels = g_slist_append(sdi->channels, ch);
7fb8279c
BV
135 drvc->instances = g_slist_append(drvc->instances, sdi);
136 devices = g_slist_append(devices, sdi);
137 break;
138 }
139 /* It takes about 1ms for a byte to come in. */
140 g_usleep(1000);
141 }
8fa9368e 142
7fb8279c 143 serial_close(serial);
8fa9368e
BV
144
145 return devices;
146}
147
148static GSList *dev_list(void)
149{
ce4d26dd 150 return ((struct drv_context *)(di->priv))->instances;
8fa9368e
BV
151}
152
8fa9368e
BV
153static int dev_open(struct sr_dev_inst *sdi)
154{
7fb8279c 155 struct sr_serial_dev_inst *serial;
8fa9368e 156
7fb8279c
BV
157 serial = sdi->conn;
158 if (serial_open(serial, SERIAL_RDWR) != SR_OK)
159 return SR_ERR;
8fa9368e
BV
160
161 sdi->status = SR_ST_ACTIVE;
162
163 return SR_OK;
164}
165
8fa9368e
BV
166static int cleanup(void)
167{
a6630742 168 return std_dev_clear(di, NULL);
8fa9368e
BV
169}
170
584560f1 171static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 172 const struct sr_channel_group *cg)
8fa9368e 173{
7fb8279c 174 struct dev_context *devc;
f157b2ee
BV
175 GVariant *range[2];
176 uint64_t low, high;
a90e480c 177 int tmp, ret;
8fa9368e 178
53b4680f 179 (void)cg;
d3c74a6f 180
7fb8279c
BV
181 if (!sdi)
182 return SR_ERR_ARG;
8fa9368e 183
7fb8279c 184 devc = sdi->priv;
a90e480c 185 ret = SR_OK;
8fa9368e 186 switch (key) {
7fb8279c
BV
187 case SR_CONF_LIMIT_SAMPLES:
188 *data = g_variant_new_uint64(devc->limit_samples);
189 break;
e1af0e85 190 case SR_CONF_DATALOG:
0cd9107d
BV
191 if ((ret = cem_dt_885x_recording_get(sdi, &tmp)) == SR_OK)
192 *data = g_variant_new_boolean(tmp);
e1af0e85 193 break;
be733919
BV
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");
200 else
201 return SR_ERR;
202 break;
1487ce4f
BV
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");
209 else
210 return SR_ERR;
211 break;
a90e480c
BV
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);
215 break;
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);
219 break;
f157b2ee
BV
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);
225 }
226 break;
4c22355f
BV
227 case SR_CONF_POWER_OFF:
228 *data = g_variant_new_boolean(FALSE);
229 break;
662172d4
BV
230 case SR_CONF_DATA_SOURCE:
231 if (devc->cur_data_source == DATA_SOURCE_LIVE)
232 *data = g_variant_new_string("Live");
233 else
234 *data = g_variant_new_string("Memory");
235 break;
8fa9368e
BV
236 default:
237 return SR_ERR_NA;
238 }
239
a90e480c 240 return ret;
8fa9368e
BV
241}
242
584560f1 243static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
53b4680f 244 const struct sr_channel_group *cg)
8fa9368e 245{
7fb8279c 246 struct dev_context *devc;
f157b2ee
BV
247 uint64_t tmp_u64, low, high;
248 unsigned int i;
a90e480c 249 int tmp, ret;
be733919 250 const char *tmp_str;
8fa9368e 251
53b4680f 252 (void)cg;
d3c74a6f 253
8fa9368e
BV
254 if (sdi->status != SR_ST_ACTIVE)
255 return SR_ERR_DEV_CLOSED;
256
7fb8279c
BV
257 if (!(devc = sdi->priv)) {
258 sr_err("sdi->priv was NULL.");
259 return SR_ERR_BUG;
260 }
261
8fa9368e
BV
262 ret = SR_OK;
263 switch (key) {
7fb8279c
BV
264 case SR_CONF_LIMIT_SAMPLES:
265 tmp_u64 = g_variant_get_uint64(data);
266 devc->limit_samples = tmp_u64;
267 ret = SR_OK;
268 break;
e1af0e85 269 case SR_CONF_DATALOG:
0cd9107d 270 ret = cem_dt_885x_recording_set(sdi, g_variant_get_boolean(data));
e1af0e85 271 break;
be733919
BV
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);
280 else
281 return SR_ERR_ARG;
282 break;
1487ce4f
BV
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);
291 else
292 return SR_ERR_ARG;
293 break;
a90e480c
BV
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);
297 break;
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);
301 break;
f157b2ee
BV
302 case SR_CONF_SPL_MEASUREMENT_RANGE:
303 g_variant_get(data, "(tt)", &low, &high);
304 ret = SR_ERR_ARG;
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);
308 break;
309 }
310 }
311 break;
4c22355f
BV
312 case SR_CONF_POWER_OFF:
313 if (g_variant_get_boolean(data))
314 ret = cem_dt_885x_power_off(sdi);
315 break;
662172d4
BV
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;
322 else
323 return SR_ERR;
cea26f6e 324 devc->enable_data_source_memory = devc->cur_data_source == DATA_SOURCE_MEMORY;
662172d4 325 break;
8fa9368e
BV
326 default:
327 ret = SR_ERR_NA;
328 }
329
330 return ret;
331}
332
584560f1 333static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
53b4680f 334 const struct sr_channel_group *cg)
8fa9368e 335{
f157b2ee
BV
336 GVariant *tuple, *range[2];
337 GVariantBuilder gvb;
338 unsigned int i;
8fa9368e
BV
339 int ret;
340
53b4680f 341 (void)cg;
8fa9368e
BV
342
343 ret = SR_OK;
d7125bfa
BV
344 if (!sdi) {
345 switch (key) {
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));
349 break;
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));
353 break;
354 default:
355 return SR_ERR_NA;
356 }
357 } else {
358 switch (key) {
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));
364 break;
365 case SR_CONF_SPL_WEIGHT_TIME:
366 *data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
367 break;
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);
375 }
376 *data = g_variant_builder_end(&gvb);
377 break;
378 case SR_CONF_DATA_SOURCE:
379 *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources));
380 break;
381 default:
382 return SR_ERR_NA;
f157b2ee 383 }
8fa9368e
BV
384 }
385
386 return ret;
387}
388
e37c4b39 389static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
8fa9368e 390{
e37c4b39
BV
391 struct dev_context *devc;
392 struct sr_serial_dev_inst *serial;
8fa9368e
BV
393
394 if (sdi->status != SR_ST_ACTIVE)
395 return SR_ERR_DEV_CLOSED;
396
e37c4b39
BV
397 if (!(devc = sdi->priv)) {
398 sr_err("sdi->priv was NULL.");
399 return SR_ERR_BUG;
400 }
401
402 devc->cb_data = cb_data;
403 devc->state = ST_INIT;
404 devc->num_samples = 0;
405 devc->buf_len = 0;
406
407 /* Send header packet to the session bus. */
408 std_session_send_df_header(cb_data, LOG_PREFIX);
409
410 /* Poll every 100ms, or whenever some data comes in. */
411 serial = sdi->conn;
102f1239
BV
412 serial_source_add(sdi->session, serial, G_IO_IN, 150,
413 cem_dt_885x_receive_data, (void *)sdi);
8fa9368e
BV
414
415 return SR_OK;
416}
417
418static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
419{
8fa9368e
BV
420 if (sdi->status != SR_ST_ACTIVE)
421 return SR_ERR_DEV_CLOSED;
422
d43b0908 423 return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
e37c4b39 424 sdi->conn, LOG_PREFIX);
8fa9368e
BV
425}
426
427SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info = {
428 .name = "cem-dt-885x",
429 .longname = "CEM DT-885x",
430 .api_version = 1,
431 .init = init,
432 .cleanup = cleanup,
433 .scan = scan,
434 .dev_list = dev_list,
a6630742 435 .dev_clear = NULL,
8fa9368e
BV
436 .config_get = config_get,
437 .config_set = config_set,
438 .config_list = config_list,
439 .dev_open = dev_open,
bf2c987f 440 .dev_close = std_serial_dev_close,
8fa9368e
BV
441 .dev_acquisition_start = dev_acquisition_start,
442 .dev_acquisition_stop = dev_acquisition_stop,
443 .priv = NULL,
444};