2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz>
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/>.
21 * Norma DM9x0/Siemens B102x DMMs driver.
27 static const int32_t hwopts[] = {
32 static const int32_t hwcaps[] = {
34 SR_CONF_LIMIT_SAMPLES,
41 #define SERIALCOMM "4800/8n1/dtr=1/rts=0/flow=1"
43 SR_PRIV struct sr_dev_driver norma_dmm_driver_info;
44 SR_PRIV struct sr_dev_driver siemens_b102x_driver_info;
46 static const char* get_brandstr(struct sr_dev_driver* drv)
48 if (drv == &norma_dmm_driver_info)
54 static const char* get_typestr(int type, struct sr_dev_driver* drv)
56 static const char* nameref[5][2] = {
63 if ((type < 1) || (type > 5))
64 return "Unknown type!";
66 return nameref[type-1][(drv == &siemens_b102x_driver_info)];
69 static int init_norma_dmm(struct sr_context *sr_ctx)
71 return std_init(sr_ctx, &norma_dmm_driver_info, LOG_PREFIX);
74 static int init_siemens_b102x(struct sr_context *sr_ctx)
76 return std_init(sr_ctx, &siemens_b102x_driver_info, LOG_PREFIX);
79 static GSList *do_scan(struct sr_dev_driver* drv, GSList *options)
81 struct sr_dev_inst *sdi;
82 struct drv_context *drvc;
83 struct dev_context *devc;
84 struct sr_config *src;
85 struct sr_channel *ch;
86 struct sr_serial_dev_inst *serial;
89 const char *conn, *serialcomm;
96 drvc->instances = NULL;
97 conn = serialcomm = NULL;
99 for (l = options; l; l = l->next) {
103 conn = g_variant_get_string(src->data, NULL);
105 case SR_CONF_SERIALCOMM:
106 serialcomm = g_variant_get_string(src->data, NULL);
113 serialcomm = SERIALCOMM;
115 if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
118 if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
121 serial_flush(serial);
123 if (!(buf = g_try_malloc(BUF_MAX))) {
124 sr_err("Serial buffer malloc failed.");
128 snprintf(req, sizeof(req), "%s\r\n",
129 nmadmm_requests[NMADMM_REQ_IDN].req_str);
130 g_usleep(150 * 1000); /* Wait a little to allow serial port to settle. */
131 for (cnt = 0; cnt < 7; cnt++) {
132 if (serial_write(serial, req, strlen(req)) == -1) {
133 sr_err("Unable to send identification request: %d %s.",
134 errno, strerror(errno));
138 serial_readline(serial, &buf, &len, NMADMM_TIMEOUT_MS);
141 buf[BUF_MAX - 1] = '\0';
143 /* Match ID string, e.g. "1834 065 V1.06,IF V1.02" (DM950) */
144 if (g_regex_match_simple("^1834 [^,]*,IF V*", (char *)buf, 0, 0)) {
145 auxtype = xgittoint(buf[7]);
146 sr_spew("%s %s DMM %s detected!", get_brandstr(drv), get_typestr(auxtype, drv), buf + 9);
148 if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
149 get_brandstr(drv), get_typestr(auxtype, drv), buf + 9)))
151 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
152 sr_err("Device context malloc failed.");
155 devc->type = auxtype;
156 devc->version = g_strdup(&buf[9]);
157 devc->elapsed_msec = g_timer_new();
162 if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE,
165 sdi->channels = g_slist_append(sdi->channels, ch);
166 drvc->instances = g_slist_append(drvc->instances, sdi);
167 devices = g_slist_append(devices, sdi);
172 * The interface of the DM9x0 contains a cap that needs to
173 * charge for up to 10s before the interface works, if not
174 * powered externally. Therefore wait a little to improve
178 sr_info("Waiting 5s to allow interface to settle.");
179 g_usleep(5 * 1000 * 1000);
185 serial_close(serial);
187 sr_serial_dev_inst_free(serial);
192 static GSList *scan_norma_dmm(GSList *options)
194 return do_scan(&norma_dmm_driver_info, options);
197 static GSList *scan_siemens_b102x(GSList *options)
199 return do_scan(&siemens_b102x_driver_info, options);
202 static GSList *dev_list_norma_dmm(void)
204 return ((struct drv_context *)(norma_dmm_driver_info.priv))->instances;
207 static GSList *dev_list_siemens_b102x(void)
209 return ((struct drv_context *)(siemens_b102x_driver_info.priv))->instances;
212 static int dev_close(struct sr_dev_inst *sdi)
214 struct dev_context *devc;
216 std_serial_dev_close(sdi);
218 /* Free dynamically allocated resources. */
219 if ((devc = sdi->priv) && devc->version) {
220 g_free(devc->version);
221 devc->version = NULL;
222 g_timer_destroy(devc->elapsed_msec);
228 static int cleanup_norma_dmm(void)
230 return std_dev_clear(&norma_dmm_driver_info, NULL);
233 static int cleanup_siemens_b102x(void)
235 return std_dev_clear(&siemens_b102x_driver_info, NULL);
238 static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
239 const struct sr_channel_group *cg)
241 struct dev_context *devc;
245 if (sdi->status != SR_ST_ACTIVE)
246 return SR_ERR_DEV_CLOSED;
248 if (!(devc = sdi->priv)) {
249 sr_err("sdi->priv was NULL.");
254 case SR_CONF_LIMIT_MSEC:
255 if (g_variant_get_uint64(data) == 0) {
256 sr_err("LIMIT_MSEC can't be 0.");
259 devc->limit_msec = g_variant_get_uint64(data);
260 sr_dbg("Setting time limit to %" PRIu64 "ms.",
263 case SR_CONF_LIMIT_SAMPLES:
264 devc->limit_samples = g_variant_get_uint64(data);
265 sr_dbg("Setting sample limit to %" PRIu64 ".",
266 devc->limit_samples);
275 static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
276 const struct sr_channel_group *cg)
282 case SR_CONF_SCAN_OPTIONS:
283 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
284 hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
286 case SR_CONF_DEVICE_OPTIONS:
287 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
288 hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
297 static int dev_acquisition_start(const struct sr_dev_inst *sdi,
300 struct dev_context *devc;
301 struct sr_serial_dev_inst *serial;
303 if (!sdi || !cb_data || !(devc = sdi->priv))
306 if (sdi->status != SR_ST_ACTIVE)
307 return SR_ERR_DEV_CLOSED;
309 devc->cb_data = cb_data;
311 /* Send header packet to the session bus. */
312 std_session_send_df_header(cb_data, LOG_PREFIX);
314 /* Start timer, if required. */
315 if (devc->limit_msec)
316 g_timer_start(devc->elapsed_msec);
318 /* Poll every 100ms, or whenever some data comes in. */
320 serial_source_add(sdi->session, serial, G_IO_IN, 100,
321 norma_dmm_receive_data, (void *)sdi);
326 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
328 struct dev_context *devc;
330 /* Stop timer, if required. */
331 if (sdi && (devc = sdi->priv) && devc->limit_msec)
332 g_timer_stop(devc->elapsed_msec);
334 return std_serial_dev_acquisition_stop(sdi, cb_data, dev_close,
335 sdi->conn, LOG_PREFIX);
338 SR_PRIV struct sr_dev_driver norma_dmm_driver_info = {
340 .longname = "Norma DM9x0 DMMs",
342 .init = init_norma_dmm,
343 .cleanup = cleanup_norma_dmm,
344 .scan = scan_norma_dmm,
345 .dev_list = dev_list_norma_dmm,
348 .config_set = config_set,
349 .config_list = config_list,
350 .dev_open = std_serial_dev_open,
351 .dev_close = dev_close,
352 .dev_acquisition_start = dev_acquisition_start,
353 .dev_acquisition_stop = dev_acquisition_stop,
358 SR_PRIV struct sr_dev_driver siemens_b102x_driver_info = {
359 .name = "siemens-b102x",
360 .longname = "Siemens B102x DMMs",
362 .init = init_siemens_b102x,
363 .cleanup = cleanup_siemens_b102x,
364 .scan = scan_siemens_b102x,
365 .dev_list = dev_list_siemens_b102x,
368 .config_set = config_set,
369 .config_list = config_list,
370 .dev_open = std_serial_dev_open,
371 .dev_close = dev_close,
372 .dev_acquisition_start = dev_acquisition_start,
373 .dev_acquisition_stop = dev_acquisition_stop,