| 1 | /*
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| 2 | * Copyright (c) 2011 Jan Vesely
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 | /** @addtogroup drvusbohci
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| 29 | * @{
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| 30 | */
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| 31 | /** @file
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| 32 | * @brief OHCI driver
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| 33 | */
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| 34 | #ifndef DRV_OHCI_TRANSFER_DESCRIPTOR_H
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| 35 | #define DRV_OHCI_TRANSFER_DESCRIPTOR_H
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| 36 |
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| 37 | #include <stdint.h>
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| 38 |
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| 39 | typedef struct td {
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| 40 | volatile uint32_t status;
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| 41 | #define TD_STATUS_ROUND_FLAG (1 << 18)
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| 42 | #define TD_STATUS_DP_MASK (0x3) /* direction/PID */
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| 43 | #define TD_STATUS_DP_SHIFT (19)
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| 44 | #define TD_STATUS_DP_SETUP (0x0)
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| 45 | #define TD_STATUS_DP_IN (0x1)
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| 46 | #define TD_STATUS_DP_OUT (0x2)
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| 47 | #define TD_STATUS_DI_MASK (0x7) /* delay interrupt, wait DI frames before int */
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| 48 | #define TD_STATUS_DI_SHIFT (21)
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| 49 | #define TD_STATUS_DI_NO_INTERRUPT (0x7)
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| 50 | #define TD_STATUS_T_MASK (0x3) /* data toggle 1x = use ED toggle carry */
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| 51 | #define TD_STATUS_T_SHIFT (24)
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| 52 | #define TD_STATUS_EC_MASK (0x3) /* error count */
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| 53 | #define TD_STATUS_EC_SHIFT (26)
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| 54 | #define TD_STATUS_CC_MASK (0xf) /* condition code */
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| 55 | #define TD_STATUS_CC_SHIFT (28)
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| 56 |
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| 57 | volatile uint32_t cbp; /* current buffer ptr, data to be transfered */
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| 58 | volatile uint32_t next;
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| 59 | #define TD_NEXT_PTR_MASK (0xfffffff0)
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| 60 | #define TD_NEXT_PTR_SHIFT (0)
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| 61 |
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| 62 | volatile uint32_t be; /* buffer end, address of the last byte */
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| 63 | } __attribute__((packed)) td_t;
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| 64 | #endif
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| 65 | /**
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| 66 | * @}
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| 67 | */
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| 68 |
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