/*
 * Copyright (c) 2017 Michal Staruch
 * 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.
 */

/** @addtogroup drvusbxhci
 * @{
 */
/** @file
 * @brief The host controller transfer ring management
 */

#include "hc.h"
#include "trb_ring.h"

typedef struct {
	link_t link;

	uintptr_t interrupt_trb_phys;
	uint8_t direction;

	usb_transfer_batch_t* batch;

	void* hc_buffer;                    /* Virtual address of the buffer start. */
} xhci_transfer_t;

int xhci_init_transfers(xhci_hc_t*);
void xhci_fini_transfers(xhci_hc_t*);

xhci_transfer_t* xhci_transfer_alloc(usb_transfer_batch_t*);
void xhci_transfer_fini(xhci_transfer_t*);

int xhci_handle_transfer_event(xhci_hc_t*, xhci_trb_t*);

int xhci_schedule_control_transfer(xhci_hc_t*, usb_transfer_batch_t*);
int xhci_schedule_bulk_transfer(xhci_hc_t*, usb_transfer_batch_t*);
int xhci_schedule_interrupt_transfer(xhci_hc_t*, usb_transfer_batch_t*);
int xhci_schedule_isochronous_transfer(xhci_hc_t* , usb_transfer_batch_t* );