mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
synced 2024-12-13 05:54:34 +08:00
134 lines
2.6 KiB
C
134 lines
2.6 KiB
C
/*
|
|
*
|
|
* BlueZ - Bluetooth protocol stack for Linux
|
|
*
|
|
* Copyright (C) 2011-2012 Intel Corporation
|
|
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
|
|
*
|
|
*
|
|
* 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 <stdio.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "mainloop.h"
|
|
#include "btdev.h"
|
|
#include "vhci.h"
|
|
|
|
struct vhci {
|
|
enum vhci_type type;
|
|
int fd;
|
|
struct btdev *btdev;
|
|
};
|
|
|
|
static void vhci_destroy(void *user_data)
|
|
{
|
|
struct vhci *vhci = user_data;
|
|
|
|
btdev_destroy(vhci->btdev);
|
|
|
|
close(vhci->fd);
|
|
|
|
free(vhci);
|
|
}
|
|
|
|
static void vhci_write_callback(const void *data, uint16_t len, void *user_data)
|
|
{
|
|
struct vhci *vhci = user_data;
|
|
ssize_t written;
|
|
|
|
written = write(vhci->fd, data, len);
|
|
if (written < 0)
|
|
return;
|
|
}
|
|
|
|
static void vhci_read_callback(int fd, uint32_t events, void *user_data)
|
|
{
|
|
struct vhci *vhci = user_data;
|
|
unsigned char buf[4096];
|
|
ssize_t len;
|
|
|
|
if (events & (EPOLLERR | EPOLLHUP))
|
|
return;
|
|
|
|
len = read(vhci->fd, buf, sizeof(buf));
|
|
if (len < 0)
|
|
return;
|
|
|
|
btdev_receive_h4(vhci->btdev, buf, len);
|
|
}
|
|
|
|
struct vhci *vhci_open(enum vhci_type type, uint16_t id)
|
|
{
|
|
struct vhci *vhci;
|
|
|
|
switch (type) {
|
|
case VHCI_TYPE_BREDR:
|
|
break;
|
|
case VHCI_TYPE_AMP:
|
|
return NULL;
|
|
}
|
|
|
|
vhci = malloc(sizeof(*vhci));
|
|
if (!vhci)
|
|
return NULL;
|
|
|
|
memset(vhci, 0, sizeof(*vhci));
|
|
vhci->type = type;
|
|
|
|
vhci->fd = open("/dev/vhci", O_RDWR | O_NONBLOCK);
|
|
if (vhci->fd < 0) {
|
|
free(vhci);
|
|
return NULL;
|
|
}
|
|
|
|
vhci->btdev = btdev_create(id);
|
|
if (!vhci->btdev) {
|
|
close(vhci->fd);
|
|
free(vhci);
|
|
return NULL;
|
|
}
|
|
|
|
btdev_set_send_handler(vhci->btdev, vhci_write_callback, vhci);
|
|
|
|
if (mainloop_add_fd(vhci->fd, EPOLLIN, vhci_read_callback,
|
|
vhci, vhci_destroy) < 0) {
|
|
btdev_destroy(vhci->btdev);
|
|
close(vhci->fd);
|
|
free(vhci);
|
|
return NULL;
|
|
}
|
|
|
|
return vhci;
|
|
}
|
|
|
|
void vhci_close(struct vhci *vhci)
|
|
{
|
|
if (!vhci)
|
|
return;
|
|
|
|
mainloop_remove_fd(vhci->fd);
|
|
}
|