ADFS_LockIDE (changes)
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ADFS
» SWI Calls
» ADFS_LockIDE
ADFS_LockIDE
(SWI &40251)
| Entry | |
|---|---|
| R0 | Lock Flag (as described below) |
| Exit | |
|---|---|
| R0 | Preserved |
| Flag bits | |
|---|---|
| 0 | 0 = unlock IDE bus |
| 1 = lock IDE bus | |
Use
The purpose of this call is to lock or unlock the IDE bus.
Notes
All non-used bits within the flag must be set to zero.
An error is generated if an attempt to lock and already locked bus.
When attempting to lock the bus in a background process, you must not do so within a loop. Instead, reschedule a retry for a later time.
See also
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