2 * This file is part of the sigrok project.
4 * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
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 2 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, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "libsigrok.h"
24 #include "libsigrok-internal.h"
27 #define UNI_T_UT_D04_NEW "1a86.e008"
29 static const int hwcaps[] = {
31 SR_HWCAP_LIMIT_SAMPLES,
37 SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
38 SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
40 static struct sr_dev_driver *di_ut61d = &uni_t_ut61d_driver_info;
41 static struct sr_dev_driver *di_vc820 = &voltcraft_vc820_driver_info;
43 /* After hw_init() this will point to a device-specific entry (see above). */
44 static struct sr_dev_driver *di = NULL;
46 static int clear_instances(void)
48 /* TODO: Use common code later. */
53 static int hw_init(struct sr_context *sr_ctx, int dmm)
55 struct drv_context *drvc;
57 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
58 sr_err("Driver context malloc failed.");
62 if (dmm == UNI_T_UT61D)
64 else if (dmm == VOLTCRAFT_VC820)
66 sr_dbg("Selected '%s' subdriver.", di->name);
68 drvc->sr_ctx = sr_ctx;
74 static int hw_init_ut61d(struct sr_context *sr_ctx)
76 return hw_init(sr_ctx, UNI_T_UT61D);
79 static int hw_init_vc820(struct sr_context *sr_ctx)
81 return hw_init(sr_ctx, VOLTCRAFT_VC820);
84 static GSList *hw_scan(GSList *options)
86 GSList *usb_devices, *devices, *l;
87 struct sr_dev_inst *sdi;
88 struct dev_context *devc;
89 struct drv_context *drvc;
90 struct sr_usb_dev_inst *usb;
92 struct sr_probe *probe;
99 /* USB scan is always authoritative. */
103 for (l = options; l; l = l->next) {
105 switch (opt->hwopt) {
112 conn = UNI_T_UT_D04_NEW;
115 if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
116 g_slist_free_full(usb_devices, g_free);
120 for (l = usb_devices; l; l = l->next) {
123 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
124 sr_err("Device context malloc failed.");
128 if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
129 di->longname, NULL, NULL))) {
130 sr_err("sr_dev_inst_new returned NULL.");
135 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
137 sdi->probes = g_slist_append(sdi->probes, probe);
141 drvc->instances = g_slist_append(drvc->instances, sdi);
142 devices = g_slist_append(devices, sdi);
148 static GSList *hw_dev_list(void)
150 struct drv_context *drvc;
154 return drvc->instances;
157 static int hw_dev_open(struct sr_dev_inst *sdi)
159 struct drv_context *drvc;
160 struct dev_context *devc;
165 return sr_usb_open(drvc->sr_ctx->libusb_ctx, devc->usb);
168 static int hw_dev_close(struct sr_dev_inst *sdi)
177 static int hw_cleanup(void)
184 static int hw_info_get(int info_id, const void **data,
185 const struct sr_dev_inst *sdi)
189 sr_spew("Backend requested info_id %d.", info_id);
194 sr_spew("%s: Returning hwcaps.", __func__);
196 case SR_DI_SAMPLERATES:
197 /* TODO: Get rid of this. */
199 sr_spew("%s: Returning samplerates.", __func__);
202 case SR_DI_CUR_SAMPLERATE:
203 /* TODO: Get rid of this. */
205 sr_spew("%s: Returning current samplerate.", __func__);
216 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
219 struct dev_context *devc;
224 case SR_HWCAP_LIMIT_MSEC:
225 /* TODO: Not yet implemented. */
226 if (*(const uint64_t *)value == 0) {
227 sr_err("Time limit cannot be 0.");
230 devc->limit_msec = *(const uint64_t *)value;
231 sr_dbg("Setting time limit to %" PRIu64 "ms.",
234 case SR_HWCAP_LIMIT_SAMPLES:
235 if (*(const uint64_t *)value == 0) {
236 sr_err("Sample limit cannot be 0.");
239 devc->limit_samples = *(const uint64_t *)value;
240 sr_dbg("Setting sample limit to %" PRIu64 ".",
241 devc->limit_samples);
244 sr_err("Unknown capability: %d.", hwcap);
252 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
255 struct sr_datafeed_packet packet;
256 struct sr_datafeed_header header;
257 struct sr_datafeed_meta_analog meta;
258 struct dev_context *devc;
262 sr_dbg("Starting acquisition.");
264 devc->cb_data = cb_data;
266 /* Send header packet to the session bus. */
267 sr_dbg("Sending SR_DF_HEADER.");
268 packet.type = SR_DF_HEADER;
269 packet.payload = (uint8_t *)&header;
270 header.feed_version = 1;
271 gettimeofday(&header.starttime, NULL);
272 sr_session_send(devc->cb_data, &packet);
274 /* Send metadata about the SR_DF_ANALOG packets to come. */
275 sr_dbg("Sending SR_DF_META_ANALOG.");
276 packet.type = SR_DF_META_ANALOG;
277 packet.payload = &meta;
279 sr_session_send(devc->cb_data, &packet);
281 if (!strcmp(di->name, "uni-t-ut61d")) {
282 sr_source_add(0, 0, 10 /* poll_timeout */,
283 uni_t_ut61d_receive_data, (void *)sdi);
284 } else if (!strcmp(di->name, "voltcraft-vc820")) {
285 sr_source_add(0, 0, 10 /* poll_timeout */,
286 voltcraft_vc820_receive_data, (void *)sdi);
292 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
294 struct sr_datafeed_packet packet;
298 sr_dbg("Stopping acquisition.");
300 /* Send end packet to the session bus. */
301 sr_dbg("Sending SR_DF_END.");
302 packet.type = SR_DF_END;
303 sr_session_send(cb_data, &packet);
311 SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info = {
312 .name = "uni-t-ut61d",
313 .longname = "UNI-T UT61D",
315 .init = hw_init_ut61d,
316 .cleanup = hw_cleanup,
318 .dev_list = hw_dev_list,
319 .dev_clear = clear_instances,
320 .dev_open = hw_dev_open,
321 .dev_close = hw_dev_close,
322 .info_get = hw_info_get,
323 .dev_config_set = hw_dev_config_set,
324 .dev_acquisition_start = hw_dev_acquisition_start,
325 .dev_acquisition_stop = hw_dev_acquisition_stop,
329 SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info = {
330 .name = "voltcraft-vc820",
331 .longname = "Voltcraft VC-820",
333 .init = hw_init_vc820,
334 .cleanup = hw_cleanup,
336 .dev_list = hw_dev_list,
337 .dev_clear = clear_instances,
338 .dev_open = hw_dev_open,
339 .dev_close = hw_dev_close,
340 .info_get = hw_info_get,
341 .dev_config_set = hw_dev_config_set,
342 .dev_acquisition_start = hw_dev_acquisition_start,
343 .dev_acquisition_stop = hw_dev_acquisition_stop,