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 static const int hwcaps[] = {
29 SR_HWCAP_LIMIT_SAMPLES,
35 static const char *probe_names[] = {
40 SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
41 SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
43 static struct sr_dev_driver *di_ut61d = &uni_t_ut61d_driver_info;
44 static struct sr_dev_driver *di_vc820 = &voltcraft_vc820_driver_info;
46 /* After hw_init() this will point to a device-specific entry (see above). */
47 static struct sr_dev_driver *di = NULL;
49 static int clear_instances(void)
51 /* TODO: Use common code later. */
56 static int hw_init(int dmm)
59 struct drv_context *drvc;
61 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
62 sr_err("Driver context malloc failed.");
66 if ((ret = libusb_init(NULL)) < 0) {
67 sr_err("Failed to initialize libusb: %s.",
68 libusb_error_name(ret));
72 if (dmm == UNI_T_UT61D)
74 else if (dmm == VOLTCRAFT_VC820)
76 sr_dbg("Selected '%s' subdriver.", di->name);
83 static int hw_init_ut61d(void)
85 return hw_init(UNI_T_UT61D);
88 static int hw_init_vc820(void)
90 return hw_init(VOLTCRAFT_VC820);
93 static GSList *hw_scan(GSList *options)
96 struct sr_dev_inst *sdi;
97 struct dev_context *devc;
98 struct drv_context *drvc;
99 struct sr_probe *probe;
100 struct libusb_device *ldev;
109 if (!(l = sr_usb_connect(NULL, "1a86.e008")))
112 for (i = 0; i < (int)g_slist_length(l); i++) {
113 ldev = (struct libusb_device *)l->data;
115 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
116 sr_err("Device context malloc failed.");
120 devcnt = g_slist_length(drvc->instances);
121 if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
122 di->longname, NULL, NULL))) {
123 sr_err("sr_dev_inst_new returned NULL.");
128 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
130 sdi->probes = g_slist_append(sdi->probes, probe);
131 devc->usb = sr_usb_dev_inst_new(
132 libusb_get_bus_number(ldev),
133 libusb_get_device_address(ldev), NULL);
134 drvc->instances = g_slist_append(drvc->instances, l->data);
135 devices = g_slist_append(devices, sdi);
141 static GSList *hw_dev_list(void)
143 struct drv_context *drvc;
147 return drvc->instances;
150 static int hw_dev_open(struct sr_dev_inst *sdi)
152 struct dev_context *devc;
156 return sr_usb_open(NULL, devc->usb);
159 static int hw_dev_close(struct sr_dev_inst *sdi)
168 static int hw_cleanup(void)
172 // libusb_exit(NULL);
177 static int hw_info_get(int info_id, const void **data,
178 const struct sr_dev_inst *sdi)
182 sr_spew("Backend requested info_id %d.", info_id);
187 sr_spew("%s: Returning hwcaps.", __func__);
189 case SR_DI_NUM_PROBES:
190 *data = GINT_TO_POINTER(1);
191 sr_spew("%s: Returning number of probes.", __func__);
193 case SR_DI_PROBE_NAMES:
195 sr_spew("%s: Returning probe names.", __func__);
197 case SR_DI_SAMPLERATES:
198 /* TODO: Get rid of this. */
200 sr_spew("%s: Returning samplerates.", __func__);
203 case SR_DI_CUR_SAMPLERATE:
204 /* TODO: Get rid of this. */
206 sr_spew("%s: Returning current samplerate.", __func__);
210 sr_err("%s: Unknown info_id %d.", __func__, info_id);
218 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
221 struct dev_context *devc;
226 case SR_HWCAP_LIMIT_MSEC:
227 /* TODO: Not yet implemented. */
228 if (*(const uint64_t *)value == 0) {
229 sr_err("Time limit cannot be 0.");
232 devc->limit_msec = *(const uint64_t *)value;
233 sr_dbg("Setting time limit to %" PRIu64 "ms.",
236 case SR_HWCAP_LIMIT_SAMPLES:
237 if (*(const uint64_t *)value == 0) {
238 sr_err("Sample limit cannot be 0.");
241 devc->limit_samples = *(const uint64_t *)value;
242 sr_dbg("Setting sample limit to %" PRIu64 ".",
243 devc->limit_samples);
246 sr_err("Unknown capability: %d.", hwcap);
254 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
257 struct sr_datafeed_packet packet;
258 struct sr_datafeed_header header;
259 struct sr_datafeed_meta_analog meta;
260 struct dev_context *devc;
264 sr_dbg("Starting acquisition.");
266 devc->cb_data = cb_data;
268 /* Send header packet to the session bus. */
269 sr_dbg("Sending SR_DF_HEADER.");
270 packet.type = SR_DF_HEADER;
271 packet.payload = (uint8_t *)&header;
272 header.feed_version = 1;
273 gettimeofday(&header.starttime, NULL);
274 sr_session_send(devc->cb_data, &packet);
276 /* Send metadata about the SR_DF_ANALOG packets to come. */
277 sr_dbg("Sending SR_DF_META_ANALOG.");
278 packet.type = SR_DF_META_ANALOG;
279 packet.payload = &meta;
281 sr_session_send(devc->cb_data, &packet);
283 if (!strcmp(di->name, "uni-t-ut61d")) {
284 sr_source_add(0, 0, 10 /* poll_timeout */,
285 uni_t_ut61d_receive_data, (void *)sdi);
286 } else if (!strcmp(di->name, "voltcraft-vc820")) {
287 sr_source_add(0, 0, 10 /* poll_timeout */,
288 voltcraft_vc820_receive_data, (void *)sdi);
294 static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
297 struct sr_datafeed_packet packet;
301 sr_dbg("Stopping acquisition.");
303 /* Send end packet to the session bus. */
304 sr_dbg("Sending SR_DF_END.");
305 packet.type = SR_DF_END;
306 sr_session_send(cb_data, &packet);
314 SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info = {
315 .name = "uni-t-ut61d",
316 .longname = "UNI-T UT61D",
318 .init = hw_init_ut61d,
319 .cleanup = hw_cleanup,
321 .dev_list = hw_dev_list,
322 .dev_clear = clear_instances,
323 .dev_open = hw_dev_open,
324 .dev_close = hw_dev_close,
325 .info_get = hw_info_get,
326 .dev_config_set = hw_dev_config_set,
327 .dev_acquisition_start = hw_dev_acquisition_start,
328 .dev_acquisition_stop = hw_dev_acquisition_stop,
332 SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info = {
333 .name = "voltcraft-vc820",
334 .longname = "Voltcraft VC-820",
336 .init = hw_init_vc820,
337 .cleanup = hw_cleanup,
339 .dev_list = hw_dev_list,
340 .dev_clear = clear_instances,
341 .dev_open = hw_dev_open,
342 .dev_close = hw_dev_close,
343 .info_get = hw_info_get,
344 .dev_config_set = hw_dev_config_set,
345 .dev_acquisition_start = hw_dev_acquisition_start,
346 .dev_acquisition_stop = hw_dev_acquisition_stop,