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40 lines
1.1 KiB
40 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __NWBUTTON_H |
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#define __NWBUTTON_H |
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/* |
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* NetWinder Button Driver- |
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* Copyright (C) Alex Holden <[email protected]> 1998, 1999. |
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*/ |
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#ifdef __NWBUTTON_C /* Actually compiling the driver itself */ |
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/* Various defines: */ |
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#define NUM_PRESSES_REBOOT 2 /* How many presses to activate shutdown */ |
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#define BUTTON_DELAY 30 /* How many jiffies for sequence to end */ |
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#define VERSION "0.3" /* Driver version number */ |
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/* Structure definitions: */ |
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struct button_callback { |
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void (*callback) (void); |
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int count; |
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}; |
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/* Function prototypes: */ |
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static void button_sequence_finished(struct timer_list *unused); |
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static irqreturn_t button_handler (int irq, void *dev_id); |
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int button_init (void); |
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int button_add_callback (void (*callback) (void), int count); |
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int button_del_callback (void (*callback) (void)); |
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static void button_consume_callbacks (int bpcount); |
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#else /* Not compiling the driver itself */ |
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extern int button_add_callback (void (*callback) (void), int count); |
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extern int button_del_callback (void (*callback) (void)); |
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#endif /* __NWBUTTON_C */ |
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#endif /* __NWBUTTON_H */
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