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/* Driver Manager Read/Write Interface Implementation.
*
* COPYRIGHT (c) 2009.
* Cobham Gaisler AB.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#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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