forked from Imagelibrary/rtems
38 lines
736 B
C
38 lines
736 B
C
/* 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;
|
|
}
|