e72e9355e3
git: https://android.googlesource.com/kernel/common branch: android-4.9 commit: 03fcc2fe71308c2d164b4e6cbfc738c63e670444
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
#ifndef __NWBUTTON_H
|
|
#define __NWBUTTON_H
|
|
|
|
/*
|
|
* NetWinder Button Driver-
|
|
* Copyright (C) Alex Holden <alex@linuxhacker.org> 1998, 1999.
|
|
*/
|
|
|
|
#ifdef __NWBUTTON_C /* Actually compiling the driver itself */
|
|
|
|
/* Various defines: */
|
|
|
|
#define NUM_PRESSES_REBOOT 2 /* How many presses to activate shutdown */
|
|
#define BUTTON_DELAY 30 /* How many jiffies for sequence to end */
|
|
#define VERSION "0.3" /* Driver version number */
|
|
#define BUTTON_MINOR 158 /* Major 10, Minor 158, /dev/nwbutton */
|
|
|
|
/* Structure definitions: */
|
|
|
|
struct button_callback {
|
|
void (*callback) (void);
|
|
int count;
|
|
};
|
|
|
|
/* Function prototypes: */
|
|
|
|
static void button_sequence_finished (unsigned long parameters);
|
|
static irqreturn_t button_handler (int irq, void *dev_id);
|
|
int button_init (void);
|
|
int button_add_callback (void (*callback) (void), int count);
|
|
int button_del_callback (void (*callback) (void));
|
|
static void button_consume_callbacks (int bpcount);
|
|
|
|
#else /* Not compiling the driver itself */
|
|
|
|
extern int button_add_callback (void (*callback) (void), int count);
|
|
extern int button_del_callback (void (*callback) (void));
|
|
|
|
#endif /* __NWBUTTON_C */
|
|
#endif /* __NWBUTTON_H */
|