2 * This file is part of the sigrok project.
4 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
5 * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
6 * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include <sys/types.h>
28 #include "libsigrok.h"
29 #include "libsigrok-internal.h"
32 static const int hwopts[] = {
38 static const int hwcaps[] = {
40 SR_HWCAP_LIMIT_SAMPLES,
45 static const char *probe_names[] = {
50 SR_PRIV struct sr_dev_driver digitek_dt4000zc_driver_info;
51 SR_PRIV struct sr_dev_driver tekpower_tp4000zc_driver_info;
52 SR_PRIV struct sr_dev_driver metex_me31_driver_info;
53 SR_PRIV struct sr_dev_driver peaktech_3410_driver_info;
54 SR_PRIV struct sr_dev_driver mastech_mas345_driver_info;
55 SR_PRIV struct sr_dev_driver va_va18b_driver_info;
56 SR_PRIV struct sr_dev_driver metex_m3640d_driver_info;
57 SR_PRIV struct sr_dev_driver peaktech_4370_driver_info;
58 SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info;
59 SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info;
60 SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info;
62 /* After hw_init() this will point to a device-specific entry (see above). */
63 static struct sr_dev_driver *di = NULL;
65 SR_PRIV struct dmm_info dmms[] = {
67 "Digitek", "DT4000ZC", "2400/8n1", 2400,
68 FS9721_PACKET_SIZE, NULL,
69 sr_fs9721_packet_valid, sr_fs9721_parse,
71 &digitek_dt4000zc_driver_info, receive_data_DIGITEK_DT4000ZC,
74 "TekPower", "TP4000ZC", "2400/8n1", 2400,
75 FS9721_PACKET_SIZE, NULL,
76 sr_fs9721_packet_valid, sr_fs9721_parse,
78 &tekpower_tp4000zc_driver_info, receive_data_TEKPOWER_TP4000ZC,
81 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
82 METEX14_PACKET_SIZE, sr_metex14_packet_request,
83 sr_metex14_packet_valid, sr_metex14_parse,
85 &metex_me31_driver_info, receive_data_METEX_ME31,
88 "Peaktech", "3410", "600/7n2/rts=0/dtr=1", 600,
89 METEX14_PACKET_SIZE, sr_metex14_packet_request,
90 sr_metex14_packet_valid, sr_metex14_parse,
92 &peaktech_3410_driver_info, receive_data_PEAKTECH_3410,
95 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
96 METEX14_PACKET_SIZE, sr_metex14_packet_request,
97 sr_metex14_packet_valid, sr_metex14_parse,
99 &mastech_mas345_driver_info, receive_data_MASTECH_MAS345,
102 "V&A", "VA18B", "2400/8n1", 2400,
103 FS9721_PACKET_SIZE, NULL,
104 sr_fs9721_packet_valid, sr_fs9721_parse,
106 &va_va18b_driver_info, receive_data_VA_VA18B,
109 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
110 METEX14_PACKET_SIZE, sr_metex14_packet_request,
111 sr_metex14_packet_valid, sr_metex14_parse,
113 &metex_m3640d_driver_info, receive_data_METEX_M3640D,
116 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
117 METEX14_PACKET_SIZE, sr_metex14_packet_request,
118 sr_metex14_packet_valid, sr_metex14_parse,
120 &peaktech_4370_driver_info, receive_data_PEAKTECH_4370,
123 "PCE", "PCE-DM32", "2400/8n1", 2400,
124 FS9721_PACKET_SIZE, NULL,
125 sr_fs9721_packet_valid, sr_fs9721_parse,
126 dmm_details_pce_dm32,
127 &pce_pce_dm32_driver_info, receive_data_PCE_PCE_DM32,
130 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
131 METEX14_PACKET_SIZE, sr_metex14_packet_request,
132 sr_metex14_packet_valid, sr_metex14_parse,
134 &radioshack_22_168_driver_info, receive_data_RADIOSHACK_22_168,
137 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
138 RS9LCD_PACKET_SIZE, NULL,
139 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
141 &radioshack_22_812_driver_info, receive_data_RADIOSHACK_22_812,
145 /* Properly close and free all devices. */
146 static int clear_instances(void)
148 struct sr_dev_inst *sdi;
149 struct drv_context *drvc;
150 struct dev_context *devc;
153 /* di is not necessarily initialized */
157 if (!(drvc = di->priv))
161 for (l = drvc->instances; l; l = l->next) {
162 if (!(sdi = l->data))
164 if (!(devc = sdi->priv))
166 sr_serial_dev_inst_free(devc->serial);
167 sr_dev_inst_free(sdi);
169 g_slist_free(drvc->instances);
170 drvc->instances = NULL;
175 static int hw_init(struct sr_context *sr_ctx, int dmm)
177 struct drv_context *drvc;
179 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
180 sr_err("Driver context malloc failed.");
181 return SR_ERR_MALLOC;
185 sr_dbg("Selected '%s' subdriver.", dmms[dmm].di->name);
187 drvc->sr_ctx = sr_ctx;
188 //// di->priv = drvc;
189 dmms[dmm].di->priv = drvc;
194 /* Driver-specific hw_init() function wrappers */
195 #define HW_INIT(X) static int hw_init_##X(struct sr_context *sr_ctx) \
196 { return hw_init(sr_ctx, X); }
197 HW_INIT(DIGITEK_DT4000ZC)
198 HW_INIT(TEKPOWER_TP4000ZC)
200 HW_INIT(PEAKTECH_3410)
201 HW_INIT(MASTECH_MAS345)
203 HW_INIT(METEX_M3640D)
204 HW_INIT(PEAKTECH_4370)
205 HW_INIT(PCE_PCE_DM32)
206 HW_INIT(RADIOSHACK_22_168)
207 HW_INIT(RADIOSHACK_22_812)
209 static GSList *scan(const char *conn, const char *serialcomm, int dmm)
211 struct sr_dev_inst *sdi;
212 struct drv_context *drvc;
213 struct dev_context *devc;
214 struct sr_probe *probe;
215 struct sr_serial_dev_inst *serial;
221 if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
224 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
227 sr_info("Probing port %s.", conn);
229 //// drvc = di->priv;
230 drvc = dmms[dmm].di->priv;
232 serial_flush(serial);
235 * There's no way to get an ID from the multimeter. It just sends data
236 * periodically, so the best we can do is check if the packets match
237 * the expected format.
240 /* Let's get a bit of data and see if we can find a packet. */
243 /* Request a packet if the DMM requires this. */
244 if (dmms[dmm].packet_request) {
245 if ((ret = dmms[dmm].packet_request(serial)) < 0) {
246 sr_err("Failed to request packet: %d.", ret);
251 ret = serial_stream_detect(serial, buf, &len, dmms[dmm].packet_size,
252 dmms[dmm].packet_valid, 1000,
258 * If we dropped more than two packets worth of data, something is
259 * wrong. We shouldn't quit however, since the dropped bytes might be
260 * just zeroes at the beginning of the stream. Those can occur as a
261 * combination of the nonstandard cable that ships with this device and
262 * the serial port or USB to serial adapter.
264 dropped = len - dmms[dmm].packet_size;
265 if (dropped > 2 * dmms[dmm].packet_size)
266 sr_warn("Had to drop too much data.");
268 sr_info("Found device on port %s.", conn);
270 if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, dmms[dmm].vendor,
271 dmms[dmm].device, "")))
274 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
275 sr_err("Device context malloc failed.");
279 devc->serial = serial;
282 sdi->driver = dmms[dmm].di;
283 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
285 sdi->probes = g_slist_append(sdi->probes, probe);
286 drvc->instances = g_slist_append(drvc->instances, sdi);
287 devices = g_slist_append(devices, sdi);
290 serial_close(serial);
295 static GSList *hw_scan(GSList *options)
297 struct sr_hwopt *opt;
299 const char *conn, *serialcomm;
302 conn = serialcomm = NULL;
303 for (l = options; l; l = l->next) {
305 switch (opt->hwopt) {
309 case SR_HWOPT_SERIALCOMM:
310 serialcomm = opt->value;
317 if (!strcmp(di->name, "digitek-dt4000zc"))
319 if (!strcmp(di->name, "tekpower-tp4000zc"))
321 if (!strcmp(di->name, "metex-me31"))
323 if (!strcmp(di->name, "peaktech-3410"))
325 if (!strcmp(di->name, "mastech-mas345"))
327 if (!strcmp(di->name, "va-va18b"))
329 if (!strcmp(di->name, "metex-m3640d"))
331 if (!strcmp(di->name, "peaktech-4370"))
333 if (!strcmp(di->name, "pce-pce-dm32"))
335 if (!strcmp(di->name, "radioshack-22-168"))
337 if (!strcmp(di->name, "radioshack-22-812"))
341 /* Use the provided comm specs. */
342 devices = scan(conn, serialcomm, dmm);
344 /* Try the default. */
345 devices = scan(conn, dmms[dmm].conn, dmm);
351 static GSList *hw_dev_list(void)
353 struct drv_context *drvc;
357 return drvc->instances;
360 static int hw_dev_open(struct sr_dev_inst *sdi)
362 struct dev_context *devc;
364 if (!(devc = sdi->priv)) {
365 sr_err("sdi->priv was NULL.");
369 if (serial_open(devc->serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
372 sdi->status = SR_ST_ACTIVE;
377 static int hw_dev_close(struct sr_dev_inst *sdi)
379 struct dev_context *devc;
381 if (!(devc = sdi->priv)) {
382 sr_err("sdi->priv was NULL.");
386 if (devc->serial && devc->serial->fd != -1) {
387 serial_close(devc->serial);
388 sdi->status = SR_ST_INACTIVE;
394 static int hw_cleanup(void)
401 static int hw_info_get(int info_id, const void **data,
402 const struct sr_dev_inst *sdi)
413 case SR_DI_NUM_PROBES:
414 *data = GINT_TO_POINTER(1);
416 case SR_DI_PROBE_NAMES:
426 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
429 struct dev_context *devc;
431 if (sdi->status != SR_ST_ACTIVE)
434 if (!(devc = sdi->priv)) {
435 sr_err("sdi->priv was NULL.");
440 case SR_HWCAP_LIMIT_SAMPLES:
441 devc->limit_samples = *(const uint64_t *)value;
442 sr_dbg("Setting sample limit to %" PRIu64 ".",
443 devc->limit_samples);
446 sr_err("Unknown capability: %d.", hwcap);
454 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
457 struct sr_datafeed_packet packet;
458 struct sr_datafeed_header header;
459 struct sr_datafeed_meta_analog meta;
460 struct dev_context *devc;
462 if (!(devc = sdi->priv)) {
463 sr_err("sdi->priv was NULL.");
467 sr_dbg("Starting acquisition.");
469 devc->cb_data = cb_data;
472 * Reset the number of samples to take. If we've already collected our
473 * quota, but we start a new session, and don't reset this, we'll just
474 * quit without acquiring any new samples.
476 devc->num_samples = 0;
478 /* Send header packet to the session bus. */
479 sr_dbg("Sending SR_DF_HEADER.");
480 packet.type = SR_DF_HEADER;
481 packet.payload = (uint8_t *)&header;
482 header.feed_version = 1;
483 gettimeofday(&header.starttime, NULL);
484 sr_session_send(devc->cb_data, &packet);
486 /* Send metadata about the SR_DF_ANALOG packets to come. */
487 sr_dbg("Sending SR_DF_META_ANALOG.");
488 packet.type = SR_DF_META_ANALOG;
489 packet.payload = &meta;
491 sr_session_send(devc->cb_data, &packet);
493 /* Poll every 50ms, or whenever some data comes in. */
494 sr_source_add(devc->serial->fd, G_IO_IN, 50,
495 dmms[sdi->driver->subdriver].receive_data, (void *)sdi);
500 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
502 struct sr_datafeed_packet packet;
503 struct dev_context *devc;
505 if (sdi->status != SR_ST_ACTIVE)
508 if (!(devc = sdi->priv)) {
509 sr_err("sdi->priv was NULL.");
513 sr_dbg("Stopping acquisition.");
515 sr_source_remove(devc->serial->fd);
516 hw_dev_close((struct sr_dev_inst *)sdi);
518 /* Send end packet to the session bus. */
519 sr_dbg("Sending SR_DF_END.");
520 packet.type = SR_DF_END;
521 sr_session_send(cb_data, &packet);
527 #define DRV(ID, ID_UPPER, NAME, LONGNAME) \
528 SR_PRIV struct sr_dev_driver ID##_driver_info = { \
530 .longname = LONGNAME, \
532 .init = hw_init_##ID_UPPER, \
533 .cleanup = hw_cleanup, \
535 .dev_list = hw_dev_list, \
536 .dev_clear = clear_instances, \
537 .dev_open = hw_dev_open, \
538 .dev_close = hw_dev_close, \
539 .info_get = hw_info_get, \
540 .dev_config_set = hw_dev_config_set, \
541 .dev_acquisition_start = hw_dev_acquisition_start, \
542 .dev_acquisition_stop = hw_dev_acquisition_stop, \
544 .subdriver = ID_UPPER, \
546 DRV(digitek_dt4000zc, DIGITEK_DT4000ZC, "digitek-dt4000zc", "Digitek DT4000ZC")
547 DRV(tekpower_tp4000zc, TEKPOWER_TP4000ZC, "tekpower-tp4000zc", "TekPower TP4000ZC")
548 DRV(metex_me31, METEX_ME31, "metex-me31", "Metex ME-31")
549 DRV(peaktech_3410, PEAKTECH_3410, "peaktech-3410", "PeakTech 3410")
550 DRV(mastech_mas345, MASTECH_MAS345, "mastech-mas345", "MASTECH MAS345")
551 DRV(va_va18b, VA_VA18B, "va-va18b", "V&A VA18B")
552 DRV(metex_m3640d, METEX_M3640D, "metex-m3640d", "Metex M-3640D")
553 DRV(peaktech_4370, PEAKTECH_4370, "peaktech-4370", "PeakTech 4370")
554 DRV(pce_pce_dm32, PCE_PCE_DM32, "pce-pce-dm32", "PCE PCE-DM32")
555 DRV(radioshack_22_168, RADIOSHACK_22_168, "radioshack-22-168", "RadioShack 22-168")
556 DRV(radioshack_22_812, RADIOSHACK_22_812, "radioshack-22-812", "RadioShack 22-812")