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/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SCI_UTIL_H_
#define _SCI_UTIL_H_
#include "scic_sds_request.h"
#define SCIC_BUILD_DWORD(char_buffer) \
(\
((char_buffer)[0] << 24) \
| ((char_buffer)[1] << 16) \
| ((char_buffer)[2] << 8) \
| ((char_buffer)[3]) \
)
#define sci_cb_make_physical_address(physical_addr, addr_upper, addr_lower) \
((physical_addr) = (addr_lower) | ((u64)addr_upper) << 32)
/**
* sci_swab32_cpy - convert between scsi and scu-hardware byte format
* @dest: receive the 4-byte endian swapped version of src
* @src: word aligned source buffer
*
* scu hardware handles SSP/SMP control, response, and unidentified
* frames in "big endian dword" order. Regardless of host endian this
* is always a swab32()-per-dword conversion of the standard definition,
* i.e. single byte fields swapped and multi-byte fields in little-
* endian
*/
static inline void sci_swab32_cpy(void *_dest, void *_src, ssize_t word_cnt)
{
u32 *dest = _dest, *src = _src;
while (--word_cnt >= 0)
dest[word_cnt] = swab32(src[word_cnt]);
}
void *scic_request_get_virt_addr(struct scic_sds_request *sds_request,
dma_addr_t phys_addr);
dma_addr_t scic_io_request_get_dma_addr(struct scic_sds_request *sds_request,
void *virt_addr);
#endif /* _SCI_UTIL_H_ */
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