rtnet_port.h

/* include/rtnet_port.h
 *
 * RTnet - real-time networking subsystem
 * Copyright (C) 2003      Wittawat Yamwong
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#ifndef __RTNET_PORT_H_
#define __RTNET_PORT_H_

#ifdef __KERNEL__

#include <linux/bitops.h>
#include <linux/moduleparam.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/vmalloc.h>
#include <linux/bitops.h>

#include <rtdev.h>
#include <rtdev_mgr.h>
#include <rtdm/driver.h>
#include <stack_mgr.h>
#include <ethernet/eth.h>

static inline void rtnetif_start_queue(struct rtnet_device *rtdev)
{
        clear_bit(__RTNET_LINK_STATE_XOFF, &rtdev->link_state);
}

static inline void rtnetif_wake_queue(struct rtnet_device *rtdev)
{
        if (test_and_clear_bit(__RTNET_LINK_STATE_XOFF, &rtdev->link_state))
                /*TODO __netif_schedule(dev); */;
}

static inline void rtnetif_stop_queue(struct rtnet_device *rtdev)
{
        set_bit(__RTNET_LINK_STATE_XOFF, &rtdev->link_state);
}

static inline int rtnetif_queue_stopped(struct rtnet_device *rtdev)
{
        return test_bit(__RTNET_LINK_STATE_XOFF, &rtdev->link_state);
}

static inline int rtnetif_running(struct rtnet_device *rtdev)
{
        return test_bit(__RTNET_LINK_STATE_START, &rtdev->link_state);
}

static inline int rtnetif_device_present(struct rtnet_device *rtdev)
{
        return test_bit(__RTNET_LINK_STATE_PRESENT, &rtdev->link_state);
}

static inline void rtnetif_device_detach(struct rtnet_device *rtdev)
{
        if (test_and_clear_bit(__RTNET_LINK_STATE_PRESENT,
                               &rtdev->link_state) &&
            rtnetif_running(rtdev)) {
                rtnetif_stop_queue(rtdev);
        }
}

static inline void rtnetif_device_attach(struct rtnet_device *rtdev)
{
        if (!test_and_set_bit(__RTNET_LINK_STATE_PRESENT, &rtdev->link_state) &&
            rtnetif_running(rtdev)) {
                rtnetif_wake_queue(rtdev);
                /* __netdev_watchdog_up(rtdev); */
        }
}

static inline void rtnetif_carrier_on(struct rtnet_device *rtdev)
{
        clear_bit(__RTNET_LINK_STATE_NOCARRIER, &rtdev->link_state);
        /*
    if (netif_running(dev))
        __netdev_watchdog_up(dev);
    */
}

static inline void rtnetif_carrier_off(struct rtnet_device *rtdev)
{
        set_bit(__RTNET_LINK_STATE_NOCARRIER, &rtdev->link_state);
}

static inline int rtnetif_carrier_ok(struct rtnet_device *rtdev)
{
        return !test_bit(__RTNET_LINK_STATE_NOCARRIER, &rtdev->link_state);
}

#define NIPQUAD(addr)                                                          \
        ((unsigned char *)&addr)[0], ((unsigned char *)&addr)[1],              \
                ((unsigned char *)&addr)[2], ((unsigned char *)&addr)[3]
#define NIPQUAD_FMT "%u.%u.%u.%u"

#endif /* __KERNEL__ */

#endif /* __RTNET_PORT_H_ */