/*
* Copyright (c) 2013 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.
*/
/** @addtogroup drvusbehci
* @{
*/
/** @file
* @brief EHCI driver
*/
#ifndef DRV_EHCI_HW_STRUCT_ISO_TRANSFER_DESCRIPTOR_H
#define DRV_EHCI_HW_STRUCT_ISO_TRANSFER_DESCRIPTOR_H
#include <stdint.h>
#include "link_pointer.h"
/** Isochronous transfer descriptor (HS only) */
typedef struct itd {
link_pointer_t next;
volatile uint32_t transaction[8];
volatile uint32_t buffer_pointer[7];
/* 64 bit struct only */
volatile uint32_t extended_bp[7];
} __attribute__((packed, aligned(32))) itd_t;
/*
* itd_t.transaction
*/
#define ITD_TRANSACTION_STATUS_ACTIVE_FLAG (1 << 31)
#define ITD_TRANSACTION_STATUS_BUFFER_ERROR_FLAG (1 << 30)
#define ITD_TRANSACTION_STATUS_BABBLE_FLAG (1 << 29)
#define ITD_TRANSACTION_STATUS_TRANS_ERROR_FLAG (1 << 28)
#define ITD_TRANSACTION_LENGTH_MASK 0xfff
#define ITD_TRANSACTION_LENGTH_SHIFT 16
#define ITD_TRANSACTION_IOC_FLAG (1 << 15)
#define ITD_TRANSACTION_PG_MASK 0x3
#define ITD_TRANSACTION_PG_SHIFT 12
#define ITD_TRANSACTION_OFFSET_MASK 0xfff
#define ITD_TRANSACTION_OFFSET_SHIFT 0
/*
* itd_t.buffer_pointer
*/
#define ITD_BUFFER_POINTER_MASK 0xfffff000
/* First buffer pointer */
#define ITD_BUFFER_POINTER_EP_MASK 0xf
#define ITD_BUFFER_POINTER_EP_SHIFT 8
#define ITD_BUFFER_POINTER_ADDR_MASK 0x3f
#define ITD_BUFFER_POINTER_ADDR_SHIFT 0
/* Second buffer pointer */
#define ITD_BUFFER_POINTER_IN_FLAG (1 << 11)
#define ITD_BUFFER_POINTER_MAX_PACKET_MASK 0x3ff
#define ITD_BUFFER_POINTER_MAX_PACKET_SHIFT 0
/* Third buffer pointer */
#define ITD_BUFFER_POINTER_MULTI_MASK 0x3
#define ITD_BUFFER_POINTER_MULTI_SHIFT 0
#endif
/**
* @}
*/