718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
161 lines
5.5 KiB
C
161 lines
5.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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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 version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SCI_UTIL_H_
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#define _SCI_UTIL_H_
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#include <sys/param.h>
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#include <dev/isci/scil/sci_types.h>
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#endif
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/**
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* Normal byte swap macro
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*/
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#define SCIC_SWAP_DWORD(x) \
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( \
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(((x) >> 24) & 0x000000FF) \
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| (((x) >> 8) & 0x0000FF00) \
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| (((x) << 8) & 0x00FF0000) \
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| (((x) << 24) & 0xFF000000) \
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)
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#define SCIC_BUILD_DWORD(char_buffer) \
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( \
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((char_buffer)[0] << 24) \
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| ((char_buffer)[1] << 16) \
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| ((char_buffer)[2] << 8) \
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| ((char_buffer)[3]) \
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)
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#define SCI_FIELD_OFFSET(type, field) ((POINTER_UINT)&(((type *)0)->field))
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//This macro counts how many bits being set in a mask.
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#define SCI_GET_BITS_SET_COUNT(mask, set_bit_count) \
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{ \
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U8 index; \
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set_bit_count = 0; \
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for (index = 0; index < sizeof(mask)*8; index++) \
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{ \
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if( mask & (1<<index) ) \
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set_bit_count++; \
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} \
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}
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/**
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* This macro simply performs addition on an SCI_PHYSICAL_ADDRESS
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* type. The lower U32 value is "clipped" or "wrapped" back through
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* 0. When this occurs the upper 32-bits are incremented by 1.
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*/
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#define sci_physical_address_add(physical_address, value) \
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{ \
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U32 lower = sci_cb_physical_address_lower((physical_address)); \
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U32 upper = sci_cb_physical_address_upper((physical_address)); \
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\
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if (lower + (value) < lower) \
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upper += 1; \
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\
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lower += (value); \
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sci_cb_make_physical_address(physical_address, upper, lower); \
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}
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/**
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* This macro simply performs subtraction on an SCI_PHYSICAL_ADDRESS
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* type. The lower U32 value is "clipped" or "wrapped" back through
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* 0. When this occurs the upper 32-bits are decremented by 1.
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*/
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#define sci_physical_address_subtract(physical_address, value) \
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{ \
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U32 lower = sci_cb_physical_address_lower((physical_address)); \
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U32 upper = sci_cb_physical_address_upper((physical_address)); \
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\
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if (lower - (value) > lower) \
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upper -= 1; \
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\
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lower -= (value); \
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sci_cb_make_physical_address(physical_address, upper, lower); \
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}
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/**
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* @brief Copy the data from source to destination and swap the
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* bytes during the copy.
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*
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* @param[in] destination This parameter specifies the destination address
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* to which the data is to be copied.
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* @param[in] source This parameter specifies the source address from
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* which data is to be copied.
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* @param[in] word_count This parameter specifies the number of 32-bit words
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* to copy and byte swap.
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*
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* @return none
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*/
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void scic_word_copy_with_swap(
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U32 *destination,
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U32 *source,
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U32 word_count
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);
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#define sci_ssp_get_sense_data_length(sense_data_length_buffer) \
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SCIC_BUILD_DWORD(sense_data_length_buffer)
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#define sci_ssp_get_response_data_length(response_data_length_buffer) \
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SCIC_BUILD_DWORD(response_data_length_buffer)
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#endif // _SCI_UTIL_H_
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