2 * m68k beeper driver for Linux
4 * Copyright (c) 2002 Richard Zidlicky
5 * Copyright (c) 2002 Vojtech Pavlik
6 * Copyright (c) 1992 Orest Zborowski
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License version 2 as published by
13 * the Free Software Foundation
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/input.h>
20 #include <asm/machdep.h>
23 MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
24 MODULE_DESCRIPTION("m68k beeper driver");
25 MODULE_LICENSE("GPL");
27 static struct input_dev *m68kspkr_dev;
29 static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
31 unsigned int count = 0;
37 case SND_BELL: if (value) value = 1000;
42 if (value > 20 && value < 32767)
43 count = 1193182 / value;
50 static int __init m68kspkr_init(void)
53 printk(KERN_INFO "m68kspkr: no lowlevel beep support\n");
57 m68kspkr_dev = input_allocate_device();
61 m68kspkr_dev->name = "m68k beeper";
62 m68kspkr_dev->phys = "m68k/generic";
63 m68kspkr_dev->id.bustype = BUS_HOST;
64 m68kspkr_dev->id.vendor = 0x001f;
65 m68kspkr_dev->id.product = 0x0001;
66 m68kspkr_dev->id.version = 0x0100;
68 m68kspkr_dev->evbit[0] = BIT(EV_SND);
69 m68kspkr_dev->sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
70 m68kspkr_dev->event = m68kspkr_event;
72 input_register_device(m68kspkr_dev);
77 static void __exit m68kspkr_exit(void)
79 input_unregister_device(m68kspkr_dev);
82 module_init(m68kspkr_init);
83 module_exit(m68kspkr_exit);