/* * 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. */ /** @addtogroup drvusbohci * @{ */ /** @file * @brief OHCI driver */ #ifndef DRV_OHCI_HW_STRUCT_ISO_TRANSFER_DESCRIPTOR_H #define DRV_OHCI_HW_STRUCT_ISO_TRANSFER_DESCRIPTOR_H #include <stdint.h> #include "completion_codes.h" typedef struct itd { volatile uint32_t status; #define ITD_STATUS_SF_MASK (0xffff) /* starting frame */ #define ITD_STATUS_SF_SHIFT (0) #define ITD_STATUS_DI_MASK (0x7) /* delay int, wait DI frames before int */ #define ITD_STATUS_DI_SHIFT (21) #define ITD_STATUS_DI_NO_INTERRUPT (0x7) #define ITD_STATUS_FC_MASK (0x7) /* frame count */ #define ITD_STATUS_FC_SHIFT (24) #define ITD_STATUS_CC_MASK (0xf) /* condition code */ #define ITD_STATUS_CC_SHIFT (28) volatile uint32_t page; /* page number of the first byte in buffer */ #define ITD_PAGE_BP0_MASK (0xfffff000) #define ITD_PAGE_BP0_SHIFT (0) volatile uint32_t next; #define ITD_NEXT_PTR_MASK (0xfffffff0) #define ITD_NEXT_PTR_SHIFT (0) volatile uint32_t be; /* buffer end, address of the last byte */ volatile uint16_t offset[8]; #define ITD_OFFSET_SIZE_MASK (0x3ff) #define ITD_OFFSET_SIZE_SHIFT (0) #define ITD_OFFSET_CC_MASK (0xf) #define ITD_OFFSET_CC_SHIFT (12) } __attribute__((packed, aligned(32))) itd_t; #endif /** * @} */