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/*
* This file is part of the libjaylink project.
*
* Copyright (C) 2014-2016 Marc Schink <jaylink-dev@marcschink.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, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "libjaylink.h"
#include "libjaylink-internal.h"
/**
* @file
*
* Device discovery.
*/
static void clear_discovery_list(struct jaylink_context *ctx)
{
struct list *item;
struct list *tmp;
struct jaylink_device *dev;
item = ctx->discovered_devs;
while (item) {
dev = (struct jaylink_device *)item->data;
jaylink_unref_device(dev);
tmp = item;
item = item->next;
free(tmp);
}
ctx->discovered_devs = NULL;
}
/**
* Scan for devices.
*
* @param[in,out] ctx libjaylink context.
* @param[in] ifaces Host interfaces to scan for devices. Use bitwise OR to
* specify multiple interfaces, or 0 to use all available
* interfaces. See #jaylink_host_interface for a description
* of the interfaces.
*
* @retval JAYLINK_OK Success.
* @retval JAYLINK_ERR_ARG Invalid arguments.
* @retval JAYLINK_ERR_IO Input/output error.
* @retval JAYLINK_ERR Other error conditions.
*
* @see jaylink_get_devices()
*
* @since 0.1.0
*/
JAYLINK_API int jaylink_discovery_scan(struct jaylink_context *ctx,
uint32_t ifaces)
{
int ret;
if (!ctx)
return JAYLINK_ERR_ARG;
if (!ifaces)
ifaces = JAYLINK_HIF_USB | JAYLINK_HIF_TCP;
clear_discovery_list(ctx);
#ifdef HAVE_LIBUSB
if (ifaces & JAYLINK_HIF_USB) {
ret = discovery_usb_scan(ctx);
if (ret != JAYLINK_OK) {
log_err(ctx, "USB device discovery failed");
return ret;
}
}
#endif
if (ifaces & JAYLINK_HIF_TCP) {
ret = discovery_tcp_scan(ctx);
if (ret != JAYLINK_OK) {
log_err(ctx, "TCP/IP device discovery failed");
return ret;
}
}
return JAYLINK_OK;
}
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