include/clocksource/timer-goldfish.h

Source file repositories/reference/linux-study-clean/include/clocksource/timer-goldfish.h

File Facts

System
Linux kernel
Corpus path
include/clocksource/timer-goldfish.h
Extension
.h
Size
1007 bytes
Lines
32
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _CLOCKSOURCE_TIMER_GOLDFISH_H
#define _CLOCKSOURCE_TIMER_GOLDFISH_H

/*
 * TIMER_TIME_LOW	 get low bits of current time and update TIMER_TIME_HIGH
 * TIMER_TIME_HIGH	 get high bits of time at last TIMER_TIME_LOW read
 * TIMER_ALARM_LOW	 set low bits of alarm and activate it
 * TIMER_ALARM_HIGH	 set high bits of next alarm
 * TIMER_IRQ_ENABLED	 enable alarm interrupt
 * TIMER_CLEAR_ALARM	 disarm an existing alarm
 * TIMER_ALARM_STATUS	 alarm status (running or not)
 * TIMER_CLEAR_INTERRUPT clear interrupt
 */
#define TIMER_TIME_LOW		0x00
#define TIMER_TIME_HIGH		0x04
#define TIMER_ALARM_LOW		0x08
#define TIMER_ALARM_HIGH	0x0c
#define TIMER_IRQ_ENABLED	0x10
#define TIMER_CLEAR_ALARM	0x14
#define TIMER_ALARM_STATUS	0x18
#define TIMER_CLEAR_INTERRUPT	0x1c

extern int goldfish_timer_init(int irq, void __iomem *base);

#endif /* _CLOCKSOURCE_TIMER_GOLDFISH_H */

Annotation

Implementation Notes