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 SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
36 SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
38 static struct sr_dev_driver *di_ut61d = &uni_t_ut61d_driver_info;
39 static struct sr_dev_driver *di_vc820 = &voltcraft_vc820_driver_info;
41 /* After hw_init() this will point to a device-specific entry (see above). */
42 static struct sr_dev_driver *di = NULL;
44 static int clear_instances(void)
46 /* TODO: Use common code later. */
51 static int hw_init(struct sr_context *sr_ctx, int dmm)
53 struct drv_context *drvc;
55 if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
56 sr_err("Driver context malloc failed.");
60 if (dmm == UNI_T_UT61D)
62 else if (dmm == VOLTCRAFT_VC820)
64 sr_dbg("Selected '%s' subdriver.", di->name);
66 drvc->sr_ctx = sr_ctx;
72 static int hw_init_ut61d(struct sr_context *sr_ctx)
74 return hw_init(sr_ctx, UNI_T_UT61D);
77 static int hw_init_vc820(struct sr_context *sr_ctx)
79 return hw_init(sr_ctx, VOLTCRAFT_VC820);
82 static GSList *hw_scan(GSList *options)
85 struct sr_dev_inst *sdi;
86 struct dev_context *devc;
87 struct drv_context *drvc;
88 struct sr_probe *probe;
89 struct libusb_device *ldev;
98 if (!(l = sr_usb_find(drvc->sr_ctx->libusb_ctx, "1a86.e008")))
101 for (i = 0; i < (int)g_slist_length(l); i++) {
102 ldev = (struct libusb_device *)l->data;
104 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
105 sr_err("Device context malloc failed.");
109 devcnt = g_slist_length(drvc->instances);
110 if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
111 di->longname, NULL, NULL))) {
112 sr_err("sr_dev_inst_new returned NULL.");
117 if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
119 sdi->probes = g_slist_append(sdi->probes, probe);
120 devc->usb = sr_usb_dev_inst_new(
121 libusb_get_bus_number(ldev),
122 libusb_get_device_address(ldev), NULL);
123 drvc->instances = g_slist_append(drvc->instances, l->data);
124 devices = g_slist_append(devices, sdi);
130 static GSList *hw_dev_list(void)
132 struct drv_context *drvc;
136 return drvc->instances;
139 static int hw_dev_open(struct sr_dev_inst *sdi)
141 struct dev_context *devc;
145 return sr_usb_open(NULL, devc->usb);
148 static int hw_dev_close(struct sr_dev_inst *sdi)
157 static int hw_cleanup(void)
164 static int hw_info_get(int info_id, const void **data,
165 const struct sr_dev_inst *sdi)
169 sr_spew("Backend requested info_id %d.", info_id);
174 sr_spew("%s: Returning hwcaps.", __func__);
176 case SR_DI_SAMPLERATES:
177 /* TODO: Get rid of this. */
179 sr_spew("%s: Returning samplerates.", __func__);
182 case SR_DI_CUR_SAMPLERATE:
183 /* TODO: Get rid of this. */
185 sr_spew("%s: Returning current samplerate.", __func__);
196 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
199 struct dev_context *devc;
204 case SR_HWCAP_LIMIT_MSEC:
205 /* TODO: Not yet implemented. */
206 if (*(const uint64_t *)value == 0) {
207 sr_err("Time limit cannot be 0.");
210 devc->limit_msec = *(const uint64_t *)value;
211 sr_dbg("Setting time limit to %" PRIu64 "ms.",
214 case SR_HWCAP_LIMIT_SAMPLES:
215 if (*(const uint64_t *)value == 0) {
216 sr_err("Sample limit cannot be 0.");
219 devc->limit_samples = *(const uint64_t *)value;
220 sr_dbg("Setting sample limit to %" PRIu64 ".",
221 devc->limit_samples);
224 sr_err("Unknown capability: %d.", hwcap);
232 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
235 struct sr_datafeed_packet packet;
236 struct sr_datafeed_header header;
237 struct sr_datafeed_meta_analog meta;
238 struct dev_context *devc;
242 sr_dbg("Starting acquisition.");
244 devc->cb_data = cb_data;
246 /* Send header packet to the session bus. */
247 sr_dbg("Sending SR_DF_HEADER.");
248 packet.type = SR_DF_HEADER;
249 packet.payload = (uint8_t *)&header;
250 header.feed_version = 1;
251 gettimeofday(&header.starttime, NULL);
252 sr_session_send(devc->cb_data, &packet);
254 /* Send metadata about the SR_DF_ANALOG packets to come. */
255 sr_dbg("Sending SR_DF_META_ANALOG.");
256 packet.type = SR_DF_META_ANALOG;
257 packet.payload = &meta;
259 sr_session_send(devc->cb_data, &packet);
261 if (!strcmp(di->name, "uni-t-ut61d")) {
262 sr_source_add(0, 0, 10 /* poll_timeout */,
263 uni_t_ut61d_receive_data, (void *)sdi);
264 } else if (!strcmp(di->name, "voltcraft-vc820")) {
265 sr_source_add(0, 0, 10 /* poll_timeout */,
266 voltcraft_vc820_receive_data, (void *)sdi);
272 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
274 struct sr_datafeed_packet packet;
278 sr_dbg("Stopping acquisition.");
280 /* Send end packet to the session bus. */
281 sr_dbg("Sending SR_DF_END.");
282 packet.type = SR_DF_END;
283 sr_session_send(cb_data, &packet);
291 SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info = {
292 .name = "uni-t-ut61d",
293 .longname = "UNI-T UT61D",
295 .init = hw_init_ut61d,
296 .cleanup = hw_cleanup,
298 .dev_list = hw_dev_list,
299 .dev_clear = clear_instances,
300 .dev_open = hw_dev_open,
301 .dev_close = hw_dev_close,
302 .info_get = hw_info_get,
303 .dev_config_set = hw_dev_config_set,
304 .dev_acquisition_start = hw_dev_acquisition_start,
305 .dev_acquisition_stop = hw_dev_acquisition_stop,
309 SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info = {
310 .name = "voltcraft-vc820",
311 .longname = "Voltcraft VC-820",
313 .init = hw_init_vc820,
314 .cleanup = hw_cleanup,
316 .dev_list = hw_dev_list,
317 .dev_clear = clear_instances,
318 .dev_open = hw_dev_open,
319 .dev_close = hw_dev_close,
320 .info_get = hw_info_get,
321 .dev_config_set = hw_dev_config_set,
322 .dev_acquisition_start = hw_dev_acquisition_start,
323 .dev_acquisition_stop = hw_dev_acquisition_stop,