| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __NWBUTTON_H |
| 2 | #define __NWBUTTON_H |
| 3 | |
| 4 | /* |
| 5 | * NetWinder Button Driver- |
| 6 | * Copyright (C) Alex Holden <alex@linuxhacker.org> 1998, 1999. |
| 7 | */ |
| 8 | |
| 9 | #ifdef __NWBUTTON_C /* Actually compiling the driver itself */ |
| 10 | |
| 11 | /* Various defines: */ |
| 12 | |
| 13 | #define NUM_PRESSES_REBOOT 2 /* How many presses to activate shutdown */ |
| 14 | #define BUTTON_DELAY 30 /* How many jiffies for sequence to end */ |
| 15 | #define VERSION "0.3" /* Driver version number */ |
| 16 | #define BUTTON_MINOR 158 /* Major 10, Minor 158, /dev/nwbutton */ |
| 17 | |
| 18 | /* Structure definitions: */ |
| 19 | |
| 20 | struct button_callback { |
| 21 | void (*callback) (void); |
| 22 | int count; |
| 23 | }; |
| 24 | |
| 25 | /* Function prototypes: */ |
| 26 | |
| 27 | static void button_sequence_finished (unsigned long parameters); |
| 28 | static irqreturn_t button_handler (int irq, void *dev_id, struct pt_regs *regs); |
| 29 | int button_init (void); |
| 30 | int button_add_callback (void (*callback) (void), int count); |
| 31 | int button_del_callback (void (*callback) (void)); |
| 32 | static void button_consume_callbacks (int bpcount); |
| 33 | |
| 34 | #else /* Not compiling the driver itself */ |
| 35 | |
| 36 | extern int button_add_callback (void (*callback) (void), int count); |
| 37 | extern int button_del_callback (void (*callback) (void)); |
| 38 | |
| 39 | #endif /* __NWBUTTON_C */ |
| 40 | #endif /* __NWBUTTON_H */ |