| 1 | /*
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| 2 | * Copyright (c) 2010 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_UTILS_MALLOC32_H
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| 35 | #define DRV_OHCI_UTILS_MALLOC32_H
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| 36 |
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| 37 | #include <assert.h>
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| 38 | #include <malloc.h>
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| 39 | #include <errno.h>
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| 40 | #include <mem.h>
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| 41 | #include <as.h>
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| 42 |
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| 43 | /* Generic TDs and EDs require 16byte alignment,
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| 44 | * Isochronous TD require 32byte alignment,
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| 45 | * buffers do not have to be aligned.
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| 46 | */
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| 47 | #define OHCI_ALIGN 32
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| 48 |
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| 49 | /** Get physical address translation
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| 50 | *
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| 51 | * @param[in] addr Virtual address to translate
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| 52 | * @return Physical address if exists, NULL otherwise.
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| 53 | */
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| 54 | static inline uintptr_t addr_to_phys(const void *addr)
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| 55 | {
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| 56 | uintptr_t result;
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| 57 | int ret = as_get_physical_mapping(addr, &result);
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| 58 |
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| 59 | if (ret != EOK)
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| 60 | return 0;
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| 61 | return (result | ((uintptr_t)addr & 0xfff));
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| 62 | }
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| 63 | /*----------------------------------------------------------------------------*/
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| 64 | /** Physical mallocator simulator
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| 65 | *
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| 66 | * @param[in] size Size of the required memory space
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| 67 | * @return Address of the aligned and big enough memory place, NULL on failure.
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| 68 | */
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| 69 | static inline void * malloc32(size_t size)
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| 70 | { return memalign(OHCI_ALIGN, size); }
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| 71 | /*----------------------------------------------------------------------------*/
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| 72 | /** Physical mallocator simulator
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| 73 | *
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| 74 | * @param[in] addr Address of the place allocated by malloc32
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| 75 | */
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| 76 | static inline void free32(void *addr)
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| 77 | { free(addr); }
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| 78 | #endif
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| 79 | /**
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| 80 | * @}
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| 81 | */
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