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1/*
2 * m68k beeper driver for Linux
3 *
4 * Copyright (c) 2002 Richard Zidlicky
5 * Copyright (c) 2002 Vojtech Pavlik
6 * Copyright (c) 1992 Orest Zborowski
7 *
8 */
9
10/*
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
14 */
15
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/input.h>
20#include <linux/platform_device.h>
21#include <asm/machdep.h>
22#include <asm/io.h>
23
24MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
25MODULE_DESCRIPTION("m68k beeper driver");
26MODULE_LICENSE("GPL");
27
28static struct platform_device *m68kspkr_platform_device;
29
30static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
31{
32 unsigned int count = 0;
33
34 if (type != EV_SND)
35 return -1;
36
37 switch (code) {
38 case SND_BELL: if (value) value = 1000;
39 case SND_TONE: break;
40 default: return -1;
41 }
42
43 if (value > 20 && value < 32767)
44 count = 1193182 / value;
45
46 mach_beep(count, -1);
47
48 return 0;
49}
50
51static int m68kspkr_probe(struct platform_device *dev)
52{
53 struct input_dev *input_dev;
54 int err;
55
56 input_dev = input_allocate_device();
57 if (!input_dev)
58 return -ENOMEM;
59
60 input_dev->name = "m68k beeper";
61 input_dev->phys = "m68k/generic";
62 input_dev->id.bustype = BUS_HOST;
63 input_dev->id.vendor = 0x001f;
64 input_dev->id.product = 0x0001;
65 input_dev->id.version = 0x0100;
66 input_dev->dev.parent = &dev->dev;
67
68 input_dev->evbit[0] = BIT_MASK(EV_SND);
69 input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
70 input_dev->event = m68kspkr_event;
71
72 err = input_register_device(input_dev);
73 if (err) {
74 input_free_device(input_dev);
75 return err;
76 }
77
78 platform_set_drvdata(dev, input_dev);
79
80 return 0;
81}
82
83static int m68kspkr_remove(struct platform_device *dev)
84{
85 struct input_dev *input_dev = platform_get_drvdata(dev);
86
87 input_unregister_device(input_dev);
88 /* turn off the speaker */
89 m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
90
91 return 0;
92}
93
94static void m68kspkr_shutdown(struct platform_device *dev)
95{
96 /* turn off the speaker */
97 m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
98}
99
100static struct platform_driver m68kspkr_platform_driver = {
101 .driver = {
102 .name = "m68kspkr",
103 },
104 .probe = m68kspkr_probe,
105 .remove = m68kspkr_remove,
106 .shutdown = m68kspkr_shutdown,
107};
108
109static int __init m68kspkr_init(void)
110{
111 int err;
112
113 if (!mach_beep) {
114 printk(KERN_INFO "m68kspkr: no lowlevel beep support\n");
115 return -ENODEV;
116 }
117
118 err = platform_driver_register(&m68kspkr_platform_driver);
119 if (err)
120 return err;
121
122 m68kspkr_platform_device = platform_device_alloc("m68kspkr", -1);
123 if (!m68kspkr_platform_device) {
124 err = -ENOMEM;
125 goto err_unregister_driver;
126 }
127
128 err = platform_device_add(m68kspkr_platform_device);
129 if (err)
130 goto err_free_device;
131
132 return 0;
133
134 err_free_device:
135 platform_device_put(m68kspkr_platform_device);
136 err_unregister_driver:
137 platform_driver_unregister(&m68kspkr_platform_driver);
138
139 return err;
140}
141
142static void __exit m68kspkr_exit(void)
143{
144 platform_device_unregister(m68kspkr_platform_device);
145 platform_driver_unregister(&m68kspkr_platform_driver);
146}
147
148module_init(m68kspkr_init);
149module_exit(m68kspkr_exit);
1/*
2 * m68k beeper driver for Linux
3 *
4 * Copyright (c) 2002 Richard Zidlicky
5 * Copyright (c) 2002 Vojtech Pavlik
6 * Copyright (c) 1992 Orest Zborowski
7 *
8 */
9
10/*
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
14 */
15
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/input.h>
20#include <linux/platform_device.h>
21#include <asm/machdep.h>
22#include <asm/io.h>
23
24MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
25MODULE_DESCRIPTION("m68k beeper driver");
26MODULE_LICENSE("GPL");
27
28static struct platform_device *m68kspkr_platform_device;
29
30static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
31{
32 unsigned int count = 0;
33
34 if (type != EV_SND)
35 return -1;
36
37 switch (code) {
38 case SND_BELL: if (value) value = 1000;
39 case SND_TONE: break;
40 default: return -1;
41 }
42
43 if (value > 20 && value < 32767)
44 count = 1193182 / value;
45
46 mach_beep(count, -1);
47
48 return 0;
49}
50
51static int __devinit m68kspkr_probe(struct platform_device *dev)
52{
53 struct input_dev *input_dev;
54 int err;
55
56 input_dev = input_allocate_device();
57 if (!input_dev)
58 return -ENOMEM;
59
60 input_dev->name = "m68k beeper";
61 input_dev->phys = "m68k/generic";
62 input_dev->id.bustype = BUS_HOST;
63 input_dev->id.vendor = 0x001f;
64 input_dev->id.product = 0x0001;
65 input_dev->id.version = 0x0100;
66 input_dev->dev.parent = &dev->dev;
67
68 input_dev->evbit[0] = BIT_MASK(EV_SND);
69 input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
70 input_dev->event = m68kspkr_event;
71
72 err = input_register_device(input_dev);
73 if (err) {
74 input_free_device(input_dev);
75 return err;
76 }
77
78 platform_set_drvdata(dev, input_dev);
79
80 return 0;
81}
82
83static int __devexit m68kspkr_remove(struct platform_device *dev)
84{
85 struct input_dev *input_dev = platform_get_drvdata(dev);
86
87 input_unregister_device(input_dev);
88 platform_set_drvdata(dev, NULL);
89 /* turn off the speaker */
90 m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
91
92 return 0;
93}
94
95static void m68kspkr_shutdown(struct platform_device *dev)
96{
97 /* turn off the speaker */
98 m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
99}
100
101static struct platform_driver m68kspkr_platform_driver = {
102 .driver = {
103 .name = "m68kspkr",
104 .owner = THIS_MODULE,
105 },
106 .probe = m68kspkr_probe,
107 .remove = __devexit_p(m68kspkr_remove),
108 .shutdown = m68kspkr_shutdown,
109};
110
111static int __init m68kspkr_init(void)
112{
113 int err;
114
115 if (!mach_beep) {
116 printk(KERN_INFO "m68kspkr: no lowlevel beep support\n");
117 return -ENODEV;
118 }
119
120 err = platform_driver_register(&m68kspkr_platform_driver);
121 if (err)
122 return err;
123
124 m68kspkr_platform_device = platform_device_alloc("m68kspkr", -1);
125 if (!m68kspkr_platform_device) {
126 err = -ENOMEM;
127 goto err_unregister_driver;
128 }
129
130 err = platform_device_add(m68kspkr_platform_device);
131 if (err)
132 goto err_free_device;
133
134 return 0;
135
136 err_free_device:
137 platform_device_put(m68kspkr_platform_device);
138 err_unregister_driver:
139 platform_driver_unregister(&m68kspkr_platform_driver);
140
141 return err;
142}
143
144static void __exit m68kspkr_exit(void)
145{
146 platform_device_unregister(m68kspkr_platform_device);
147 platform_driver_unregister(&m68kspkr_platform_driver);
148}
149
150module_init(m68kspkr_init);
151module_exit(m68kspkr_exit);