endpoint.h

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/*
 * Copyright (c) 2011 Jan Vesely
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef LIBUSBHOST_HOST_ENDPOINT_H
#define LIBUSBHOST_HOST_ENDPOINT_H

#include <assert.h>
#include <bool.h>
#include <adt/list.h>
#include <fibril_synch.h>

#include <usb/usb.h>

typedef struct endpoint {
        usb_address_t address;
        usb_endpoint_t endpoint;
        usb_direction_t direction;
        usb_transfer_type_t transfer_type;
        usb_speed_t speed;
        size_t max_packet_size;
        unsigned toggle:1;
        fibril_mutex_t guard;
        fibril_condvar_t avail;
        volatile bool active;
        struct {
                void *data;
                int (*toggle_get)(void *);
                void (*toggle_set)(void *, int);
        } hc_data;
} endpoint_t;

int endpoint_init(endpoint_t *instance, usb_address_t address,
    usb_endpoint_t endpoint, usb_direction_t direction,
    usb_transfer_type_t type, usb_speed_t speed, size_t max_packet_size);

void endpoint_destroy(endpoint_t *instance);

void endpoint_set_hc_data(endpoint_t *instance,
    void *data, int (*toggle_get)(void *), void (*toggle_set)(void *, int));

void endpoint_clear_hc_data(endpoint_t *instance);

void endpoint_use(endpoint_t *instance);

void endpoint_release(endpoint_t *instance);

int endpoint_toggle_get(endpoint_t *instance);

void endpoint_toggle_set(endpoint_t *instance, int toggle);

void endpoint_toggle_reset_filtered(endpoint_t *instance, usb_target_t target);
#endif

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