[libsigrok.git] / hardware / uni-t-dmm / api.c

/*
 * This file is part of the sigrok project.
 *
 * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include <stdlib.h>
#include <string.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
#include "protocol.h"

static const int hwcaps[] = {
	SR_HWCAP_MULTIMETER,
	SR_HWCAP_LIMIT_SAMPLES,
	SR_HWCAP_LIMIT_MSEC,
	SR_HWCAP_CONTINUOUS,
	0,
};

static const char *probe_names[] = {
	"Probe",
	NULL,
};

SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;

static struct sr_dev_driver *di_ut61d = &uni_t_ut61d_driver_info;
static struct sr_dev_driver *di_vc820 = &voltcraft_vc820_driver_info;

/* After hw_init() this will point to a device-specific entry (see above). */
static struct sr_dev_driver *di = NULL;

static int open_usb(struct sr_dev_inst *sdi)
{
	libusb_device **devlist;
	struct libusb_device_descriptor des;
	struct dev_context *devc;
	int ret, tmp, cnt, i;

	/* TODO: Use common code later, refactor. */

	devc = sdi->priv;

	if ((cnt = libusb_get_device_list(NULL, &devlist)) < 0) {
		sr_err("Error getting USB device list: %d.", cnt);
		return SR_ERR;
	}

	ret = SR_ERR;
	for (i = 0; i < cnt; i++) {
		if ((tmp = libusb_get_device_descriptor(devlist[i], &des))) {
			sr_err("Failed to get device descriptor: %d.", tmp);
			continue;
		}

		if (libusb_get_bus_number(devlist[i]) != devc->usb->bus
			|| libusb_get_device_address(devlist[i]) != devc->usb->address)
			continue;

		if ((tmp = libusb_open(devlist[i], &devc->usb->devhdl))) {
			sr_err("Failed to open device: %d.", tmp);
			break;
		}

		sr_info("Opened USB device on %d.%d.",
			devc->usb->bus, devc->usb->address);
		ret = SR_OK;
		break;
	}
	libusb_free_device_list(devlist, 1);

	return ret;
}

static GSList *connect_usb(const char *conn)
{
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;
	struct dev_context *devc;
	struct sr_probe *probe;
	libusb_device **devlist;
	struct libusb_device_descriptor des;
	GSList *devices;
	int vid, pid, devcnt, err, i;

	(void)conn;

	/* TODO: Use common code later, refactor. */

	drvc = di->priv;

	/* Hardcoded for now. */
	vid = UT_D04_CABLE_USB_VID;
	pid = UT_D04_CABLE_USB_DID;

	devices = NULL;
	libusb_get_device_list(NULL, &devlist);
	for (i = 0; devlist[i]; i++) {
		if ((err = libusb_get_device_descriptor(devlist[i], &des))) {
			sr_err("Failed to get device descriptor: %d", err);
			continue;
		}

		if (des.idVendor != vid || des.idProduct != pid)
			continue;

		if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
			sr_err("Device context malloc failed.");
			return NULL;
		}

		devcnt = g_slist_length(drvc->instances);
		if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
					    di->longname, NULL, NULL))) {
			sr_err("sr_dev_inst_new returned NULL.");
			return NULL;
		}
		sdi->priv = devc;
		if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
			return NULL;
		sdi->probes = g_slist_append(sdi->probes, probe);
		devc->usb = sr_usb_dev_inst_new(
				libusb_get_bus_number(devlist[i]),
				libusb_get_device_address(devlist[i]), NULL);
		devices = g_slist_append(devices, sdi);
	}
	libusb_free_device_list(devlist, 1);

	return devices;
}

static int clear_instances(void)
{
	/* TODO: Use common code later. */

	return SR_OK;
}

static int hw_init(int dmm)
{
	int ret;
	struct drv_context *drvc;

	if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
		sr_err("Driver context malloc failed.");
		return SR_ERR_MALLOC;
	}

	if ((ret = libusb_init(NULL)) < 0) {
		sr_err("Failed to initialize libusb: %s.",
		       libusb_error_name(ret));
		return SR_ERR;
	}

	if (dmm == UNI_T_UT61D)
		di = di_ut61d;
	else if (dmm == VOLTCRAFT_VC820)
		di = di_vc820;
	sr_dbg("Selected '%s' subdriver.", di->name);

	di->priv = drvc;

	return SR_OK;
}

static int hw_init_ut61d(void)
{
	return hw_init(UNI_T_UT61D);
}

static int hw_init_vc820(void)
{
	return hw_init(VOLTCRAFT_VC820);
}

static GSList *hw_scan(GSList *options)
{
	GSList *l, *devices;
	struct sr_dev_inst *sdi;
	struct drv_context *drvc;

	(void)options;

	drvc = di->priv;

	if (!(devices = connect_usb(NULL)))
		return NULL;

	for (l = devices; l; l = l->next) {
		sdi = l->data;
		sdi->driver = di;
		drvc->instances = g_slist_append(drvc->instances, l->data);
	}

	return devices;
}

static GSList *hw_dev_list(void)
{
	struct drv_context *drvc;

	drvc = di->priv;

	return drvc->instances;
}

static int hw_dev_open(struct sr_dev_inst *sdi)
{
	return open_usb(sdi);
}

static int hw_dev_close(struct sr_dev_inst *sdi)
{
	(void)sdi;

	/* TODO */

	return SR_OK;
}

static int hw_cleanup(void)
{
	clear_instances();

	// libusb_exit(NULL);

	return SR_OK;
}

static int hw_info_get(int info_id, const void **data,
		       const struct sr_dev_inst *sdi)
{
	(void)sdi;

	sr_spew("Backend requested info_id %d.", info_id);

	switch (info_id) {
	case SR_DI_HWCAPS:
		*data = hwcaps;
		sr_spew("%s: Returning hwcaps.", __func__);
		break;
	case SR_DI_NUM_PROBES:
		*data = GINT_TO_POINTER(1);
		sr_spew("%s: Returning number of probes.", __func__);
		break;
	case SR_DI_PROBE_NAMES:
		*data = probe_names;
		sr_spew("%s: Returning probe names.", __func__);
		break;
	case SR_DI_SAMPLERATES:
		/* TODO: Get rid of this. */
		*data = NULL;
		sr_spew("%s: Returning samplerates.", __func__);
		return SR_ERR_ARG;
		break;
	case SR_DI_CUR_SAMPLERATE:
		/* TODO: Get rid of this. */
		*data = NULL;
		sr_spew("%s: Returning current samplerate.", __func__);
		return SR_ERR_ARG;
		break;
	default:
		sr_err("%s: Unknown info_id %d.", __func__, info_id);
		return SR_ERR_ARG;
		break;
	}

	return SR_OK;
}

static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
			     const void *value)
{
	struct dev_context *devc;

	devc = sdi->priv;

	switch (hwcap) {
	case SR_HWCAP_LIMIT_MSEC:
		/* TODO: Not yet implemented. */
		if (*(const uint64_t *)value == 0) {
			sr_err("Time limit cannot be 0.");
			return SR_ERR;
		}
		devc->limit_msec = *(const uint64_t *)value;
		sr_dbg("Setting time limit to %" PRIu64 "ms.",
		       devc->limit_msec);
		break;
	case SR_HWCAP_LIMIT_SAMPLES:
		if (*(const uint64_t *)value == 0) {
			sr_err("Sample limit cannot be 0.");
			return SR_ERR;
		}
		devc->limit_samples = *(const uint64_t *)value;
		sr_dbg("Setting sample limit to %" PRIu64 ".",
		       devc->limit_samples);
		break;
	default:
		sr_err("Unknown capability: %d.", hwcap);
		return SR_ERR;
		break;
	}

	return SR_OK;
}

static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
				    void *cb_data)
{
	struct sr_datafeed_packet packet;
	struct sr_datafeed_header header;
	struct sr_datafeed_meta_analog meta;
	struct dev_context *devc;

	devc = sdi->priv;

	sr_dbg("Starting acquisition.");

	devc->cb_data = cb_data;

	/* Send header packet to the session bus. */
	sr_dbg("Sending SR_DF_HEADER.");
	packet.type = SR_DF_HEADER;
	packet.payload = (uint8_t *)&header;
	header.feed_version = 1;
	gettimeofday(&header.starttime, NULL);
	sr_session_send(devc->cb_data, &packet);

	/* Send metadata about the SR_DF_ANALOG packets to come. */
	sr_dbg("Sending SR_DF_META_ANALOG.");
	packet.type = SR_DF_META_ANALOG;
	packet.payload = &meta;
	meta.num_probes = 1;
	sr_session_send(devc->cb_data, &packet);

	if (!strcmp(di->name, "uni-t-ut61d")) {
		sr_source_add(0, 0, 10 /* poll_timeout */,
			      uni_t_ut61d_receive_data, (void *)sdi);
	} else if (!strcmp(di->name, "voltcraft-vc820")) {
		sr_source_add(0, 0, 10 /* poll_timeout */,
			      voltcraft_vc820_receive_data, (void *)sdi);
	}

	return SR_OK;
}

static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
				   void *cb_data)
{
	struct sr_datafeed_packet packet;

	(void)sdi;

	sr_dbg("Stopping acquisition.");

	/* Send end packet to the session bus. */
	sr_dbg("Sending SR_DF_END.");
	packet.type = SR_DF_END;
	sr_session_send(cb_data, &packet);

	/* TODO? */
	sr_source_remove(0);

	return SR_OK;
}

SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info = {
	.name = "uni-t-ut61d",
	.longname = "UNI-T UT61D",
	.api_version = 1,
	.init = hw_init_ut61d,
	.cleanup = hw_cleanup,
	.scan = hw_scan,
	.dev_list = hw_dev_list,
	.dev_clear = clear_instances,
	.dev_open = hw_dev_open,
	.dev_close = hw_dev_close,
	.info_get = hw_info_get,
	.dev_config_set = hw_dev_config_set,
	.dev_acquisition_start = hw_dev_acquisition_start,
	.dev_acquisition_stop = hw_dev_acquisition_stop,
	.priv = NULL,
};

SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info = {
	.name = "voltcraft-vc820",
	.longname = "Voltcraft VC-820",
	.api_version = 1,
	.init = hw_init_vc820,
	.cleanup = hw_cleanup,
	.scan = hw_scan,
	.dev_list = hw_dev_list,
	.dev_clear = clear_instances,
	.dev_open = hw_dev_open,
	.dev_close = hw_dev_close,
	.info_get = hw_info_get,
	.dev_config_set = hw_dev_config_set,
	.dev_acquisition_start = hw_dev_acquisition_start,
	.dev_acquisition_stop = hw_dev_acquisition_stop,
	.priv = NULL,
};
Commit	Line	Data
79081ec8 UH	1	/*
	2	* This file is part of the sigrok project.
	3	*
	4	* Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
	5	*
	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.
	10	*
	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.
	15	*
	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
	19	*/
	20
	21	#include <stdlib.h>
	22	#include <string.h>
	23	#include "libsigrok.h"
	24	#include "libsigrok-internal.h"
	25	#include "protocol.h"
	26
	27	static const int hwcaps[] = {
	28	SR_HWCAP_MULTIMETER,
	29	SR_HWCAP_LIMIT_SAMPLES,
	30	SR_HWCAP_LIMIT_MSEC,
	31	SR_HWCAP_CONTINUOUS,
	32	0,
	33	};
	34
	35	static const char *probe_names[] = {
	36	"Probe",
	37	NULL,
	38	};
	39
fdbcb86d	40	SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
fdbcb86d	41	SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
6ac5f892 UH	42
6ac5f892 UH	43	static struct sr_dev_driver *di_ut61d = &uni_t_ut61d_driver_info;
fdbcb86d	44	static struct sr_dev_driver *di_vc820 = &voltcraft_vc820_driver_info;
79081ec8	45
6ac5f892 UH	46	/* After hw_init() this will point to a device-specific entry (see above). */
	47	static struct sr_dev_driver *di = NULL;
	48
79081ec8 UH	49	static int open_usb(struct sr_dev_inst *sdi)
	50	{
	51	libusb_device **devlist;
	52	struct libusb_device_descriptor des;
	53	struct dev_context *devc;
	54	int ret, tmp, cnt, i;
	55
	56	/* TODO: Use common code later, refactor. */
	57
	58	devc = sdi->priv;
	59
	60	if ((cnt = libusb_get_device_list(NULL, &devlist)) < 0) {
	61	sr_err("Error getting USB device list: %d.", cnt);
	62	return SR_ERR;
	63	}
	64
	65	ret = SR_ERR;
	66	for (i = 0; i < cnt; i++) {
	67	if ((tmp = libusb_get_device_descriptor(devlist[i], &des))) {
	68	sr_err("Failed to get device descriptor: %d.", tmp);
	69	continue;
	70	}
	71
	72	if (libusb_get_bus_number(devlist[i]) != devc->usb->bus
	73	\|\| libusb_get_device_address(devlist[i]) != devc->usb->address)
	74	continue;
	75
	76	if ((tmp = libusb_open(devlist[i], &devc->usb->devhdl))) {
	77	sr_err("Failed to open device: %d.", tmp);
	78	break;
	79	}
	80
	81	sr_info("Opened USB device on %d.%d.",
	82	devc->usb->bus, devc->usb->address);
	83	ret = SR_OK;
	84	break;
	85	}
	86	libusb_free_device_list(devlist, 1);
	87
	88	return ret;
	89	}
	90
6ac5f892	91	static GSList connect_usb(const char conn)
79081ec8 UH	92	{
	93	struct sr_dev_inst *sdi;
	94	struct drv_context *drvc;
	95	struct dev_context *devc;
	96	struct sr_probe *probe;
	97	libusb_device **devlist;
	98	struct libusb_device_descriptor des;
	99	GSList *devices;
	100	int vid, pid, devcnt, err, i;
	101
	102	(void)conn;
	103
	104	/* TODO: Use common code later, refactor. */
	105
6ac5f892	106	drvc = di->priv;
79081ec8 UH	107
	108	/* Hardcoded for now. */
	109	vid = UT_D04_CABLE_USB_VID;
	110	pid = UT_D04_CABLE_USB_DID;
	111
	112	devices = NULL;
	113	libusb_get_device_list(NULL, &devlist);
	114	for (i = 0; devlist[i]; i++) {
	115	if ((err = libusb_get_device_descriptor(devlist[i], &des))) {
	116	sr_err("Failed to get device descriptor: %d", err);
	117	continue;
	118	}
	119
	120	if (des.idVendor != vid \|\| des.idProduct != pid)
	121	continue;
	122
	123	if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
	124	sr_err("Device context malloc failed.");
	125	return NULL;
	126	}
	127
	128	devcnt = g_slist_length(drvc->instances);
	129	if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
6ac5f892	130	di->longname, NULL, NULL))) {
79081ec8 UH	131	sr_err("sr_dev_inst_new returned NULL.");
	132	return NULL;
	133	}
	134	sdi->priv = devc;
	135	if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
	136	return NULL;
	137	sdi->probes = g_slist_append(sdi->probes, probe);
	138	devc->usb = sr_usb_dev_inst_new(
	139	libusb_get_bus_number(devlist[i]),
	140	libusb_get_device_address(devlist[i]), NULL);
	141	devices = g_slist_append(devices, sdi);
	142	}
	143	libusb_free_device_list(devlist, 1);
	144
	145	return devices;
	146	}
	147
	148	static int clear_instances(void)
	149	{
	150	/* TODO: Use common code later. */
	151
	152	return SR_OK;
	153	}
	154
fdbcb86d	155	static int hw_init(int dmm)
79081ec8 UH	156	{
	157	int ret;
	158	struct drv_context *drvc;
	159
	160	if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
	161	sr_err("Driver context malloc failed.");
	162	return SR_ERR_MALLOC;
	163	}
	164
	165	if ((ret = libusb_init(NULL)) < 0) {
	166	sr_err("Failed to initialize libusb: %s.",
	167	libusb_error_name(ret));
	168	return SR_ERR;
	169	}
	170
fdbcb86d	171	if (dmm == UNI_T_UT61D)
6ac5f892	172	di = di_ut61d;
fdbcb86d	173	else if (dmm == VOLTCRAFT_VC820)
6ac5f892	174	di = di_vc820;
8c1adf37	175	sr_dbg("Selected '%s' subdriver.", di->name);
6ac5f892 UH	176
6ac5f892 UH	177	di->priv = drvc;
79081ec8 UH	178
	179	return SR_OK;
	180	}
	181
fdbcb86d UH	182	static int hw_init_ut61d(void)
	183	{
	184	return hw_init(UNI_T_UT61D);
	185	}
	186
	187	static int hw_init_vc820(void)
	188	{
	189	return hw_init(VOLTCRAFT_VC820);
	190	}
	191
6ac5f892	192	static GSList hw_scan(GSList options)
79081ec8 UH	193	{
	194	GSList l, devices;
	195	struct sr_dev_inst *sdi;
	196	struct drv_context *drvc;
	197
	198	(void)options;
	199
6ac5f892	200	drvc = di->priv;
79081ec8	201
6ac5f892	202	if (!(devices = connect_usb(NULL)))
79081ec8 UH	203	return NULL;
	204
	205	for (l = devices; l; l = l->next) {
	206	sdi = l->data;
6ac5f892	207	sdi->driver = di;
79081ec8 UH	208	drvc->instances = g_slist_append(drvc->instances, l->data);
	209	}
	210
	211	return devices;
	212	}
	213
6ac5f892	214	static GSList *hw_dev_list(void)
79081ec8 UH	215	{
	216	struct drv_context *drvc;
	217
6ac5f892	218	drvc = di->priv;
79081ec8 UH	219
	220	return drvc->instances;
	221	}
	222
	223	static int hw_dev_open(struct sr_dev_inst *sdi)
	224	{
	225	return open_usb(sdi);
	226	}
	227
	228	static int hw_dev_close(struct sr_dev_inst *sdi)
	229	{
	230	(void)sdi;
	231
	232	/* TODO */
	233
	234	return SR_OK;
	235	}
	236
	237	static int hw_cleanup(void)
	238	{
	239	clear_instances();
	240
	241	// libusb_exit(NULL);
	242
	243	return SR_OK;
	244	}
	245
	246	static int hw_info_get(int info_id, const void **data,
	247	const struct sr_dev_inst *sdi)
	248	{
	249	(void)sdi;
	250
	251	sr_spew("Backend requested info_id %d.", info_id);
	252
	253	switch (info_id) {
	254	case SR_DI_HWCAPS:
	255	*data = hwcaps;
	256	sr_spew("%s: Returning hwcaps.", __func__);
	257	break;
	258	case SR_DI_NUM_PROBES:
	259	*data = GINT_TO_POINTER(1);
	260	sr_spew("%s: Returning number of probes.", __func__);
	261	break;
	262	case SR_DI_PROBE_NAMES:
	263	*data = probe_names;
	264	sr_spew("%s: Returning probe names.", __func__);
	265	break;
	266	case SR_DI_SAMPLERATES:
	267	/* TODO: Get rid of this. */
	268	*data = NULL;
	269	sr_spew("%s: Returning samplerates.", __func__);
	270	return SR_ERR_ARG;
	271	break;
	272	case SR_DI_CUR_SAMPLERATE:
	273	/* TODO: Get rid of this. */
	274	*data = NULL;
	275	sr_spew("%s: Returning current samplerate.", __func__);
	276	return SR_ERR_ARG;
	277	break;
	278	default:
	279	sr_err("%s: Unknown info_id %d.", __func__, info_id);
	280	return SR_ERR_ARG;
	281	break;
	282	}
283
284	return SR_OK;
285	}
286
287	static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
288	const void *value)
289	{
290	struct dev_context *devc;
291
292	devc = sdi->priv;
293
294	switch (hwcap) {
295	case SR_HWCAP_LIMIT_MSEC:
296	/* TODO: Not yet implemented. */
297	if ((const uint64_t )value == 0) {
298	sr_err("Time limit cannot be 0.");
299	return SR_ERR;
300	}
301	devc->limit_msec = (const uint64_t )value;
302	sr_dbg("Setting time limit to %" PRIu64 "ms.",
303	devc->limit_msec);
304	break;
305	case SR_HWCAP_LIMIT_SAMPLES:
306	if ((const uint64_t )value == 0) {
307	sr_err("Sample limit cannot be 0.");
308	return SR_ERR;
309	}
310	devc->limit_samples = (const uint64_t )value;
311	sr_dbg("Setting sample limit to %" PRIu64 ".",
312	devc->limit_samples);
313	break;
314	default:
315	sr_err("Unknown capability: %d.", hwcap);
316	return SR_ERR;
317	break;
318	}
319
320	return SR_OK;
321	}
322
323	static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
6ac5f892	324	void *cb_data)
79081ec8 UH	325	{
	326	struct sr_datafeed_packet packet;
	327	struct sr_datafeed_header header;
	328	struct sr_datafeed_meta_analog meta;
	329	struct dev_context *devc;
	330
	331	devc = sdi->priv;
	332
	333	sr_dbg("Starting acquisition.");
	334
	335	devc->cb_data = cb_data;
	336
	337	/* Send header packet to the session bus. */
	338	sr_dbg("Sending SR_DF_HEADER.");
	339	packet.type = SR_DF_HEADER;
	340	packet.payload = (uint8_t *)&header;
	341	header.feed_version = 1;
	342	gettimeofday(&header.starttime, NULL);
	343	sr_session_send(devc->cb_data, &packet);
	344
	345	/* Send metadata about the SR_DF_ANALOG packets to come. */
	346	sr_dbg("Sending SR_DF_META_ANALOG.");
	347	packet.type = SR_DF_META_ANALOG;
	348	packet.payload = &meta;
	349	meta.num_probes = 1;
	350	sr_session_send(devc->cb_data, &packet);
	351
6ac5f892	352	if (!strcmp(di->name, "uni-t-ut61d")) {
fdbcb86d UH	353	sr_source_add(0, 0, 10 /* poll_timeout */,
fdbcb86d UH	354	uni_t_ut61d_receive_data, (void *)sdi);
6ac5f892	355	} else if (!strcmp(di->name, "voltcraft-vc820")) {
fdbcb86d UH	356	sr_source_add(0, 0, 10 /* poll_timeout */,
	357	voltcraft_vc820_receive_data, (void *)sdi);
	358	}
79081ec8 UH	359
	360	return SR_OK;
	361	}
	362
	363	static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
	364	void *cb_data)
	365	{
	366	struct sr_datafeed_packet packet;
	367
	368	(void)sdi;
	369
	370	sr_dbg("Stopping acquisition.");
	371
	372	/* Send end packet to the session bus. */
	373	sr_dbg("Sending SR_DF_END.");
	374	packet.type = SR_DF_END;
	375	sr_session_send(cb_data, &packet);
	376
	377	/* TODO? */
	378	sr_source_remove(0);
	379
	380	return SR_OK;
	381	}
	382
fdbcb86d UH	383	SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info = {
	384	.name = "uni-t-ut61d",
	385	.longname = "UNI-T UT61D",
	386	.api_version = 1,
	387	.init = hw_init_ut61d,
	388	.cleanup = hw_cleanup,
6ac5f892 UH	389	.scan = hw_scan,
6ac5f892 UH	390	.dev_list = hw_dev_list,
fdbcb86d UH	391	.dev_clear = clear_instances,
	392	.dev_open = hw_dev_open,
	393	.dev_close = hw_dev_close,
	394	.info_get = hw_info_get,
	395	.dev_config_set = hw_dev_config_set,
6ac5f892	396	.dev_acquisition_start = hw_dev_acquisition_start,
fdbcb86d UH	397	.dev_acquisition_stop = hw_dev_acquisition_stop,
	398	.priv = NULL,
	399	};
	400
	401	SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info = {
	402	.name = "voltcraft-vc820",
	403	.longname = "Voltcraft VC-820",
79081ec8	404	.api_version = 1,
fdbcb86d	405	.init = hw_init_vc820,
79081ec8	406	.cleanup = hw_cleanup,
6ac5f892 UH	407	.scan = hw_scan,
6ac5f892 UH	408	.dev_list = hw_dev_list,
79081ec8 UH	409	.dev_clear = clear_instances,
	410	.dev_open = hw_dev_open,
	411	.dev_close = hw_dev_close,
	412	.info_get = hw_info_get,
	413	.dev_config_set = hw_dev_config_set,
6ac5f892	414	.dev_acquisition_start = hw_dev_acquisition_start,
79081ec8 UH	415	.dev_acquisition_stop = hw_dev_acquisition_stop,
	416	.priv = NULL,
	417	};