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path: root/drivers/input/misc/m68kspkr.c
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-rw-r--r--drivers/input/misc/m68kspkr.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/drivers/input/misc/m68kspkr.c b/drivers/input/misc/m68kspkr.c
new file mode 100644
index 000000000000..64abdd98d482
--- /dev/null
+++ b/drivers/input/misc/m68kspkr.c
@@ -0,0 +1,83 @@
+/*
+ * m68k beeper driver for Linux
+ *
+ * Copyright (c) 2002 Richard Zidlicky
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 1992 Orest Zborowski
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
+MODULE_DESCRIPTION("m68k beeper driver");
+MODULE_LICENSE("GPL");
+
+static char m68kspkr_name[] = "m68k beeper";
+static char m68kspkr_phys[] = "m68k/generic";
+static struct input_dev m68kspkr_dev;
+
+static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int count = 0;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ mach_beep(count, -1);
+
+ return 0;
+}
+
+static int __init m68kspkr_init(void)
+{
+ if (!mach_beep){
+ printk("%s: no lowlevel beep support\n", m68kspkr_name);
+ return -1;
+ }
+
+ m68kspkr_dev.evbit[0] = BIT(EV_SND);
+ m68kspkr_dev.sndbit[0] = BIT(SND_BELL) | BIT(SND_TONE);
+ m68kspkr_dev.event = m68kspkr_event;
+
+ m68kspkr_dev.name = m68kspkr_name;
+ m68kspkr_dev.phys = m68kspkr_phys;
+ m68kspkr_dev.id.bustype = BUS_HOST;
+ m68kspkr_dev.id.vendor = 0x001f;
+ m68kspkr_dev.id.product = 0x0001;
+ m68kspkr_dev.id.version = 0x0100;
+
+ input_register_device(&m68kspkr_dev);
+
+ printk(KERN_INFO "input: %s\n", m68kspkr_name);
+
+ return 0;
+}
+
+static void __exit m68kspkr_exit(void)
+{
+ input_unregister_device(&m68kspkr_dev);
+}
+
+module_init(m68kspkr_init);
+module_exit(m68kspkr_exit);