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(struct sr_context *sr_ctx, int dmm)
58 struct drv_context *drvc;
60 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
61 sr_err("Driver context malloc failed.");
65 if (dmm == UNI_T_UT61D)
67 else if (dmm == VOLTCRAFT_VC820)
69 sr_dbg("Selected '%s' subdriver.", di->name);
71 drvc->sr_ctx = sr_ctx;
77 static int hw_init_ut61d(struct sr_context *sr_ctx)
79 return hw_init(sr_ctx, UNI_T_UT61D);
82 static int hw_init_vc820(struct sr_context *sr_ctx)
84 return hw_init(sr_ctx, VOLTCRAFT_VC820);
87 static GSList *hw_scan(GSList *options)
90 struct sr_dev_inst *sdi;
91 struct dev_context *devc;
92 struct drv_context *drvc;
93 struct sr_probe *probe;
94 struct libusb_device *ldev;
103 if (!(l = sr_usb_find(drvc->sr_ctx->libusb_ctx, "1a86.e008")))
106 for (i = 0; i < (int)g_slist_length(l); i++) {
107 ldev = (struct libusb_device *)l->data;
109 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
110 sr_err("Device context malloc failed.");
114 devcnt = g_slist_length(drvc->instances);
115 if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
116 di->longname, NULL, NULL))) {
117 sr_err("sr_dev_inst_new returned NULL.");
122 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
124 sdi->probes = g_slist_append(sdi->probes, probe);
125 devc->usb = sr_usb_dev_inst_new(
126 libusb_get_bus_number(ldev),
127 libusb_get_device_address(ldev), NULL);
128 drvc->instances = g_slist_append(drvc->instances, l->data);
129 devices = g_slist_append(devices, sdi);
135 static GSList *hw_dev_list(void)
137 struct drv_context *drvc;
141 return drvc->instances;
144 static int hw_dev_open(struct sr_dev_inst *sdi)
146 struct dev_context *devc;
150 return sr_usb_open(NULL, devc->usb);
153 static int hw_dev_close(struct sr_dev_inst *sdi)
162 static int hw_cleanup(void)
169 static int hw_info_get(int info_id, const void **data,
170 const struct sr_dev_inst *sdi)
174 sr_spew("Backend requested info_id %d.", info_id);
179 sr_spew("%s: Returning hwcaps.", __func__);
181 case SR_DI_NUM_PROBES:
182 *data = GINT_TO_POINTER(1);
183 sr_spew("%s: Returning number of probes.", __func__);
185 case SR_DI_PROBE_NAMES:
187 sr_spew("%s: Returning probe names.", __func__);
189 case SR_DI_SAMPLERATES:
190 /* TODO: Get rid of this. */
192 sr_spew("%s: Returning samplerates.", __func__);
195 case SR_DI_CUR_SAMPLERATE:
196 /* TODO: Get rid of this. */
198 sr_spew("%s: Returning current samplerate.", __func__);
202 sr_err("%s: Unknown info_id %d.", __func__, info_id);
210 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
213 struct dev_context *devc;
218 case SR_HWCAP_LIMIT_MSEC:
219 /* TODO: Not yet implemented. */
220 if (*(const uint64_t *)value == 0) {
221 sr_err("Time limit cannot be 0.");
224 devc->limit_msec = *(const uint64_t *)value;
225 sr_dbg("Setting time limit to %" PRIu64 "ms.",
228 case SR_HWCAP_LIMIT_SAMPLES:
229 if (*(const uint64_t *)value == 0) {
230 sr_err("Sample limit cannot be 0.");
233 devc->limit_samples = *(const uint64_t *)value;
234 sr_dbg("Setting sample limit to %" PRIu64 ".",
235 devc->limit_samples);
238 sr_err("Unknown capability: %d.", hwcap);
246 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
249 struct sr_datafeed_packet packet;
250 struct sr_datafeed_header header;
251 struct sr_datafeed_meta_analog meta;
252 struct dev_context *devc;
256 sr_dbg("Starting acquisition.");
258 devc->cb_data = cb_data;
260 /* Send header packet to the session bus. */
261 sr_dbg("Sending SR_DF_HEADER.");
262 packet.type = SR_DF_HEADER;
263 packet.payload = (uint8_t *)&header;
264 header.feed_version = 1;
265 gettimeofday(&header.starttime, NULL);
266 sr_session_send(devc->cb_data, &packet);
268 /* Send metadata about the SR_DF_ANALOG packets to come. */
269 sr_dbg("Sending SR_DF_META_ANALOG.");
270 packet.type = SR_DF_META_ANALOG;
271 packet.payload = &meta;
273 sr_session_send(devc->cb_data, &packet);
275 if (!strcmp(di->name, "uni-t-ut61d")) {
276 sr_source_add(0, 0, 10 /* poll_timeout */,
277 uni_t_ut61d_receive_data, (void *)sdi);
278 } else if (!strcmp(di->name, "voltcraft-vc820")) {
279 sr_source_add(0, 0, 10 /* poll_timeout */,
280 voltcraft_vc820_receive_data, (void *)sdi);
286 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
288 struct sr_datafeed_packet packet;
292 sr_dbg("Stopping acquisition.");
294 /* Send end packet to the session bus. */
295 sr_dbg("Sending SR_DF_END.");
296 packet.type = SR_DF_END;
297 sr_session_send(cb_data, &packet);
305 SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info = {
306 .name = "uni-t-ut61d",
307 .longname = "UNI-T UT61D",
309 .init = hw_init_ut61d,
310 .cleanup = hw_cleanup,
312 .dev_list = hw_dev_list,
313 .dev_clear = clear_instances,
314 .dev_open = hw_dev_open,
315 .dev_close = hw_dev_close,
316 .info_get = hw_info_get,
317 .dev_config_set = hw_dev_config_set,
318 .dev_acquisition_start = hw_dev_acquisition_start,
319 .dev_acquisition_stop = hw_dev_acquisition_stop,
323 SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info = {
324 .name = "voltcraft-vc820",
325 .longname = "Voltcraft VC-820",
327 .init = hw_init_vc820,
328 .cleanup = hw_cleanup,
330 .dev_list = hw_dev_list,
331 .dev_clear = clear_instances,
332 .dev_open = hw_dev_open,
333 .dev_close = hw_dev_close,
334 .info_get = hw_info_get,
335 .dev_config_set = hw_dev_config_set,
336 .dev_acquisition_start = hw_dev_acquisition_start,
337 .dev_acquisition_stop = hw_dev_acquisition_stop,