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