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/* Driver Manager Internal locking 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.org/license/LICENSE.
*/
#include <rtems.h>
#include <drvmgr/drvmgr.h>
#include "drvmgr_internal.h"
void _DRV_Manager_Lock(void)
{
rtems_semaphore_obtain(drvmgr.lock, RTEMS_WAIT, RTEMS_NO_TIMEOUT);
}
void _DRV_Manager_Unlock(void)
{
rtems_semaphore_release(drvmgr.lock);
}
int _DRV_Manager_Init_Lock(void)
{
int rc;
rc = rtems_semaphore_create(
rtems_build_name('D', 'R', 'V', 'M'),
1,
RTEMS_DEFAULT_ATTRIBUTES,
0,
&drvmgr.lock);
if (rc != RTEMS_SUCCESSFUL)
return -1;
return 0;
}
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