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/* SPDX-License-Identifier: BSD-2-Clause */
/* Driver Manager Read/Write Interface Implementation.
*
* COPYRIGHT (c) 2009 Cobham Gaisler AB.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* 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.
*/
#include <string.h>
#include <drvmgr/drvmgr.h>
/* Set a range of memory in 128 byte chunks.
* This call will take 128 bytes for buffer on stack
*/
void drvmgr_rw_memset(
void *dstadr,
int c,
size_t n,
void *a,
drvmgr_wmem_arg wmem
)
{
unsigned long long buf[16+1]; /* Extra bytes after data are reserved
* for optimizations by write_mem */
int txlen;
char *adr;
if (n <= 0)
return;
if (n > sizeof(unsigned long long)*16)
txlen = sizeof(unsigned long long)*16;
else
txlen = n;
memset(buf, c, txlen);
adr = dstadr;
do {
wmem(adr, (const void *)&buf[0], txlen, a);
adr += txlen;
n -= txlen;
/* next length to transmitt */
if (n > 16*sizeof(unsigned long long))
txlen = 16*sizeof(unsigned long long);
else
txlen = n;
} while (n > 0);
}
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