161 lines
4.9 KiB
C
161 lines
4.9 KiB
C
/***************************************************************************
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* Copyright (C) 2004, 2005 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* Copyright (C) 2007,2008 Øyvind Harboe *
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* oyvind.harboe@zylin.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef TYPES_H
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#define TYPES_H
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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#ifdef HAVE_INTTYPES_H
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#include <inttypes.h>
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#endif
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typedef struct jtag_tap_s jtag_tap_t;
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#ifdef HAVE_STDBOOL_H
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#include <stdbool.h>
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#else /* HAVE_STDBOOL_H */
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#define __bool_true_false_are_defined 1
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#ifndef HAVE__BOOL
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#ifndef __cplusplus
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#define false 0
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#define true 1
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typedef int _Bool;
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#else
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typedef bool _Bool;
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#endif /* __cplusplus */
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#endif /* HAVE__BOOL */
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#define bool _Bool
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#endif /* HAVE_STDBOOL_H */
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/* DANGER!!!! here be dragons!
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*
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* Leave these fn's as byte accesses because it is safe
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* across architectures. Clever usage of 32 bit access
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* will create problems on some hosts.
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*
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* Note that the "buf" pointer in memory is probably unaligned.
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*
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* Were these functions to be re-written to take a 32 bit wide or 16 bit wide
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* memory access shortcut, then on some CPU's, i.e. ARM7, the 2 lsbytes of the address are
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* ignored for 32 bit access, whereas on other CPU's a 32 bit wide unaligned memory access
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* will cause an exception, and lastly on x86, an unaligned "greater than bytewide"
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* memory access works as if aligned. So what follows below will work for all
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* platforms and gives the compiler leeway to do its own platform specific optimizations.
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*
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* Again, note that the "buf" pointer in memory is probably unaligned.
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*/
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static inline uint32_t le_to_h_u32(const uint8_t* buf)
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{
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return (uint32_t)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
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}
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static inline uint16_t le_to_h_u16(const uint8_t* buf)
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{
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return (uint16_t)(buf[0] | buf[1] << 8);
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}
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static inline uint32_t be_to_h_u32(const uint8_t* buf)
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{
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return (uint32_t)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
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}
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static inline uint16_t be_to_h_u16(const uint8_t* buf)
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{
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return (uint16_t)(buf[1] | buf[0] << 8);
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}
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static inline void h_u32_to_le(uint8_t* buf, int val)
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{
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buf[3] = (uint8_t) (val >> 24);
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buf[2] = (uint8_t) (val >> 16);
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buf[1] = (uint8_t) (val >> 8);
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buf[0] = (uint8_t) (val >> 0);
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}
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static inline void h_u32_to_be(uint8_t* buf, int val)
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{
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buf[0] = (uint8_t) (val >> 24);
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buf[1] = (uint8_t) (val >> 16);
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buf[2] = (uint8_t) (val >> 8);
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buf[3] = (uint8_t) (val >> 0);
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}
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static inline void h_u16_to_le(uint8_t* buf, int val)
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{
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buf[1] = (uint8_t) (val >> 8);
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buf[0] = (uint8_t) (val >> 0);
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}
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static inline void h_u16_to_be(uint8_t* buf, int val)
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{
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buf[0] = (uint8_t) (val >> 8);
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buf[1] = (uint8_t) (val >> 0);
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}
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#ifdef __ECOS
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/* eCos plain lacks these definition... A series of upstream patches
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* could probably repair it, but it seems like too much work to be
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* worth it.
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*/
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#define PRIx32 "x"
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#define PRId32 "d"
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#define SCNx32 "x"
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#define PRIi32 "i"
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#define PRIu32 "u"
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typedef CYG_ADDRWORD intptr_t;
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typedef int64_t intmax_t;
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typedef uint64_t uintmax_t;
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#define INT8_MAX 0x7f
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#define INT8_MIN (-INT8_MAX - 1)
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# define UINT8_MAX (255)
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#define INT16_MAX 0x7fff
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#define INT16_MIN (-INT16_MAX - 1)
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# define UINT16_MAX (65535)
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#define INT32_MAX 0x7fffffffL
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#define INT32_MIN (-INT32_MAX - 1L)
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# define UINT32_MAX (4294967295U)
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#define INT64_MAX 0x7fffffffffffffffLL
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#define INT64_MIN (-INT64_MAX - 1LL)
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#define UINT64_MAX (__CONCAT(INT64_MAX, U) * 2ULL + 1ULL)
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#endif
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#endif /* TYPES_H */
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