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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2012 Marcel Holtmann <marcel@holtmann.org>
* Copyright (C) 2012 Nordic Semiconductor Inc.
* Copyright (C) 2012 Instituto Nokia de Tecnologia - INdT
*
*
* 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
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <stdbool.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <glib.h>
#include "lib/bluetooth.h"
#include "lib/sdp.h"
#include "lib/uuid.h"
#include "src/log.h"
#include "src/adapter.h"
#include "src/device.h"
#include "src/profile.h"
#include "src/service.h"
#include "src/shared/util.h"
#include "src/shared/uhid.h"
#include "src/shared/queue.h"
#include "src/plugin.h"
#include "suspend.h"
#include "attrib/att.h"
#include "attrib/gattrib.h"
#include "src/attio.h"
#include "attrib/gatt.h"
#include "hog-lib.h"
#define HOG_UUID "00001812-0000-1000-8000-00805f9b34fb"
struct hog_device {
guint attioid;
struct btd_device *device;
struct bt_hog *hog;
};
static gboolean suspend_supported = FALSE;
static struct queue *devices = NULL;
static void attio_connected_cb(GAttrib *attrib, gpointer user_data)
{
struct hog_device *dev = user_data;
DBG("HoG connected");
bt_hog_attach(dev->hog, attrib);
}
static void attio_disconnected_cb(gpointer user_data)
{
struct hog_device *dev = user_data;
DBG("HoG disconnected");
bt_hog_detach(dev->hog);
}
static struct hog_device *hog_device_new(struct btd_device *device,
struct gatt_primary *prim)
{
struct hog_device *dev;
char name[248];
uint16_t vendor, product, version;
if (device_name_known(device))
device_get_name(device, name, sizeof(name));
else
strcpy(name, "bluez-hog-device");
vendor = btd_device_get_vendor(device);
product = btd_device_get_product(device);
version = btd_device_get_version(device);
DBG("name=%s vendor=0x%X, product=0x%X, version=0x%X", name, vendor,
product, version);
dev = new0(struct hog_device, 1);
dev->device = btd_device_ref(device);
dev->hog = bt_hog_new_default(name, vendor, product, version, prim);
/*
* TODO: Remove attio callback and use .accept once using
* bt_gatt_client.
*/
dev->attioid = btd_device_add_attio_callback(device,
attio_connected_cb,
attio_disconnected_cb,
dev);
if (!devices)
devices = queue_new();
queue_push_tail(devices, dev);
return dev;
}
static void hog_device_free(void *data)
{
struct hog_device *dev = data;
queue_remove(devices, dev);
if (queue_isempty(devices)) {
queue_destroy(devices, NULL);
devices = NULL;
}
btd_device_remove_attio_callback(dev->device, dev->attioid);
btd_device_unref(dev->device);
bt_hog_unref(dev->hog);
free(dev);
}
static void set_suspend(gpointer data, gpointer user_data)
{
struct hog_device *dev = data;
gboolean suspend = GPOINTER_TO_INT(user_data);
bt_hog_set_control_point(dev->hog, suspend);
}
static void suspend_callback(void)
{
gboolean suspend = TRUE;
DBG("Suspending ...");
queue_foreach(devices, set_suspend, GINT_TO_POINTER(suspend));
}
static void resume_callback(void)
{
gboolean suspend = FALSE;
DBG("Resuming ...");
queue_foreach(devices, set_suspend, GINT_TO_POINTER(suspend));
}
static int hog_probe(struct btd_service *service)
{
struct btd_device *device = btd_service_get_device(service);
const char *path = device_get_path(device);
GSList *primaries, *l;
DBG("path %s", path);
primaries = btd_device_get_primaries(device);
if (primaries == NULL)
return -EINVAL;
for (l = primaries; l; l = g_slist_next(l)) {
struct gatt_primary *prim = l->data;
struct hog_device *dev;
if (strcmp(prim->uuid, HOG_UUID) != 0)
continue;
dev = hog_device_new(device, prim);
btd_service_set_user_data(service, dev);
return 0;
}
return -EINVAL;
}
static void hog_remove(struct btd_service *service)
{
struct hog_device *dev = btd_service_get_user_data(service);
struct btd_device *device = btd_service_get_device(service);
const char *path = device_get_path(device);
DBG("path %s", path);
hog_device_free(dev);
}
static struct btd_profile hog_profile = {
.name = "input-hog",
.remote_uuid = HOG_UUID,
.device_probe = hog_probe,
.device_remove = hog_remove,
};
static int hog_init(void)
{
int err;
err = suspend_init(suspend_callback, resume_callback);
if (err < 0)
error("Loading suspend plugin failed: %s (%d)", strerror(-err),
-err);
else
suspend_supported = TRUE;
return btd_profile_register(&hog_profile);
}
static void hog_exit(void)
{
if (suspend_supported)
suspend_exit();
btd_profile_unregister(&hog_profile);
}
BLUETOOTH_PLUGIN_DEFINE(hog, VERSION, BLUETOOTH_PLUGIN_PRIORITY_DEFAULT,
hog_init, hog_exit)
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