306 lines
6.9 KiB
C
306 lines
6.9 KiB
C
/*
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* This file is part of the sigrok project.
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*
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* Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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#include "protocol.h"
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#define UNI_T_UT_D04_NEW "1a86.e008"
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static const int32_t hwopts[] = {
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SR_CONF_CONN,
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};
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static const int32_t hwcaps[] = {
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SR_CONF_MULTIMETER,
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SR_CONF_LIMIT_SAMPLES,
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SR_CONF_LIMIT_MSEC,
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SR_CONF_CONTINUOUS,
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};
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SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
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SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
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static struct sr_dev_driver *di_ut61d = &uni_t_ut61d_driver_info;
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static struct sr_dev_driver *di_vc820 = &voltcraft_vc820_driver_info;
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/* After hw_init() this will point to a device-specific entry (see above). */
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static struct sr_dev_driver *di = NULL;
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static int clear_instances(void)
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{
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/* TODO: Use common code later. */
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return SR_OK;
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}
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static int hw_init(struct sr_context *sr_ctx, int dmm)
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{
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if (dmm == UNI_T_UT61D)
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di = di_ut61d;
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else if (dmm == VOLTCRAFT_VC820)
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di = di_vc820;
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sr_dbg("Selected '%s' subdriver.", di->name);
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return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
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}
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static int hw_init_ut61d(struct sr_context *sr_ctx)
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{
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return hw_init(sr_ctx, UNI_T_UT61D);
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}
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static int hw_init_vc820(struct sr_context *sr_ctx)
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{
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return hw_init(sr_ctx, VOLTCRAFT_VC820);
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}
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static GSList *hw_scan(GSList *options)
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{
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GSList *usb_devices, *devices, *l;
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struct sr_dev_inst *sdi;
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struct dev_context *devc;
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struct drv_context *drvc;
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struct sr_usb_dev_inst *usb;
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struct sr_config *src;
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struct sr_probe *probe;
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const char *conn;
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(void)options;
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drvc = di->priv;
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/* USB scan is always authoritative. */
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clear_instances();
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conn = NULL;
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for (l = options; l; l = l->next) {
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src = l->data;
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switch (src->key) {
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case SR_CONF_CONN:
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conn = g_variant_get_string(src->data, NULL);
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break;
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}
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}
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if (!conn)
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conn = UNI_T_UT_D04_NEW;
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devices = NULL;
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if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
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g_slist_free_full(usb_devices, g_free);
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return NULL;
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}
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for (l = usb_devices; l; l = l->next) {
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usb = l->data;
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if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
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sr_err("Device context malloc failed.");
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return NULL;
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}
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if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE,
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di->longname, NULL, NULL))) {
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sr_err("sr_dev_inst_new returned NULL.");
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return NULL;
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}
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sdi->priv = devc;
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sdi->driver = di;
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if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
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return NULL;
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sdi->probes = g_slist_append(sdi->probes, probe);
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devc->usb = usb;
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drvc->instances = g_slist_append(drvc->instances, sdi);
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devices = g_slist_append(devices, sdi);
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}
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return devices;
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}
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static GSList *hw_dev_list(void)
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{
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return ((struct drv_context *)(di->priv))->instances;
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}
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static int hw_dev_open(struct sr_dev_inst *sdi)
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{
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struct drv_context *drvc;
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struct dev_context *devc;
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drvc = di->priv;
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devc = sdi->priv;
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return sr_usb_open(drvc->sr_ctx->libusb_ctx, devc->usb);
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}
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static int hw_dev_close(struct sr_dev_inst *sdi)
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{
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(void)sdi;
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/* TODO */
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return SR_OK;
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}
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static int hw_cleanup(void)
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{
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clear_instances();
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return SR_OK;
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}
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static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
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{
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struct dev_context *devc;
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devc = sdi->priv;
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switch (id) {
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case SR_CONF_LIMIT_MSEC:
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/* TODO: Not yet implemented. */
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if (g_variant_get_uint64(data) == 0) {
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sr_err("Time limit cannot be 0.");
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return SR_ERR;
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}
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devc->limit_msec = g_variant_get_uint64(data);
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sr_dbg("Setting time limit to %" PRIu64 "ms.",
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devc->limit_msec);
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break;
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case SR_CONF_LIMIT_SAMPLES:
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if (g_variant_get_uint64(data) == 0) {
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sr_err("Sample limit cannot be 0.");
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return SR_ERR;
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}
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devc->limit_samples = g_variant_get_uint64(data);
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sr_dbg("Setting sample limit to %" PRIu64 ".",
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devc->limit_samples);
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break;
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default:
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return SR_ERR_NA;
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}
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return SR_OK;
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}
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static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
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{
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(void)sdi;
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switch (key) {
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case SR_CONF_SCAN_OPTIONS:
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*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
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hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
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break;
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case SR_CONF_DEVICE_OPTIONS:
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*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
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hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
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break;
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default:
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return SR_ERR_NA;
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}
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return SR_OK;
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}
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static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
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void *cb_data)
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{
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struct dev_context *devc;
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devc = sdi->priv;
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devc->cb_data = cb_data;
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/* Send header packet to the session bus. */
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std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
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if (!strcmp(di->name, "uni-t-ut61d")) {
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sr_source_add(0, 0, 10 /* poll_timeout */,
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uni_t_ut61d_receive_data, (void *)sdi);
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} else if (!strcmp(di->name, "voltcraft-vc820")) {
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sr_source_add(0, 0, 10 /* poll_timeout */,
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voltcraft_vc820_receive_data, (void *)sdi);
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}
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return SR_OK;
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}
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static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
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{
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struct sr_datafeed_packet packet;
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(void)sdi;
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sr_dbg("Stopping acquisition.");
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/* Send end packet to the session bus. */
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sr_dbg("Sending SR_DF_END.");
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packet.type = SR_DF_END;
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sr_session_send(cb_data, &packet);
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/* TODO? */
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sr_source_remove(0);
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return SR_OK;
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}
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SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info = {
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.name = "uni-t-ut61d",
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.longname = "UNI-T UT61D",
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.api_version = 1,
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.init = hw_init_ut61d,
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.cleanup = hw_cleanup,
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.scan = hw_scan,
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.dev_list = hw_dev_list,
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.dev_clear = clear_instances,
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.config_get = NULL,
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.config_set = config_set,
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.config_list = config_list,
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.dev_open = hw_dev_open,
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.dev_close = hw_dev_close,
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.dev_acquisition_start = hw_dev_acquisition_start,
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.dev_acquisition_stop = hw_dev_acquisition_stop,
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.priv = NULL,
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};
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SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info = {
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.name = "voltcraft-vc820",
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.longname = "Voltcraft VC-820",
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.api_version = 1,
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.init = hw_init_vc820,
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.cleanup = hw_cleanup,
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.scan = hw_scan,
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.dev_list = hw_dev_list,
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.dev_clear = clear_instances,
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.config_get = NULL,
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.config_set = config_set,
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.config_list = config_list,
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.dev_open = hw_dev_open,
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.dev_close = hw_dev_close,
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.dev_acquisition_start = hw_dev_acquisition_start,
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.dev_acquisition_stop = hw_dev_acquisition_stop,
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.priv = NULL,
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};
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