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#ifndef CYGONCE_USBS_AT91_BITOPS_H
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#define CYGONCE_USBS_AT91_BITOPS_H
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//==========================================================================
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//
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// bitops.h
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//
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// Hardware Bit manipulation macros for the AT91 USB device
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//
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//==========================================================================
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// ####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later
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// version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// 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 eCos; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// As a special exception, if other files instantiate templates or use
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// macros or inline functions from this file, or you compile this file
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// and link it with other works to produce a work based on this file,
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// this file does not by itself cause the resulting work to be covered by
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// the GNU General Public License. However the source code for this file
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// must still be made available in accordance with section (3) of the GNU
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// General Public License v2.
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//
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// This exception does not invalidate any other reasons why a work based
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// on this file might be covered by the GNU General Public License.
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// -------------------------------------------
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// ####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): Oliver Munz
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// Contributors: bartv
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// Date: 2006-02-22
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//
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//####DESCRIPTIONEND####
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//==========================================================================
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// Set the given bits in a device register
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#define SET_BITS(_register_, _bits_) \
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CYG_MACRO_START \
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cyg_uint32 _value_; \
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HAL_READ_UINT32(_register_, _value_); \
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_value_ |= _bits_; \
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HAL_WRITE_UINT32(_register_, _value_); \
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CYG_MACRO_END
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// Clear the given bits in a device register
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#define CLEAR_BITS(_register_, _bits_) \
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CYG_MACRO_START \
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cyg_uint32 _value_; \
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HAL_READ_UINT32(_register_, _value_); \
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_value_ &= ~_bits_; \
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HAL_WRITE_UINT32(_register_, _value_); \
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CYG_MACRO_END
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#define BITS_ARE_SET(_register_, _bits) \
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bits_are_set(_register_, _bits)
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#define BITS_ARE_CLEARED(_register_, _bits) \
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bits_are_cleared(_register_, _bits)
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static inline cyg_bool
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bits_are_set (cyg_addrword_t addr, cyg_uint32 bits)
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{
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cyg_uint32 read;
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HAL_READ_UINT32 (addr, read);
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return (read & bits) == bits;
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}
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static inline cyg_bool
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bits_are_cleared (cyg_addrword_t addr, cyg_uint32 bits)
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{
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cyg_uint32 read;
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HAL_READ_UINT32 (addr, read);
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return (read | ~bits) == ~bits;
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}
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#endif // CYGONCE_USBS_AT91_BITOPS_H
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