mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
30a6aa1f6e
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
151 lines
3.2 KiB
C
151 lines
3.2 KiB
C
/*
|
|
* 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 <linux/platform_device.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 struct platform_device *m68kspkr_platform_device;
|
|
|
|
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 m68kspkr_probe(struct platform_device *dev)
|
|
{
|
|
struct input_dev *input_dev;
|
|
int err;
|
|
|
|
input_dev = input_allocate_device();
|
|
if (!input_dev)
|
|
return -ENOMEM;
|
|
|
|
input_dev->name = "m68k beeper";
|
|
input_dev->phys = "m68k/generic";
|
|
input_dev->id.bustype = BUS_HOST;
|
|
input_dev->id.vendor = 0x001f;
|
|
input_dev->id.product = 0x0001;
|
|
input_dev->id.version = 0x0100;
|
|
input_dev->dev.parent = &dev->dev;
|
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_SND);
|
|
input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
|
|
input_dev->event = m68kspkr_event;
|
|
|
|
err = input_register_device(input_dev);
|
|
if (err) {
|
|
input_free_device(input_dev);
|
|
return err;
|
|
}
|
|
|
|
platform_set_drvdata(dev, input_dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int m68kspkr_remove(struct platform_device *dev)
|
|
{
|
|
struct input_dev *input_dev = platform_get_drvdata(dev);
|
|
|
|
input_unregister_device(input_dev);
|
|
/* turn off the speaker */
|
|
m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void m68kspkr_shutdown(struct platform_device *dev)
|
|
{
|
|
/* turn off the speaker */
|
|
m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
|
|
}
|
|
|
|
static struct platform_driver m68kspkr_platform_driver = {
|
|
.driver = {
|
|
.name = "m68kspkr",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = m68kspkr_probe,
|
|
.remove = m68kspkr_remove,
|
|
.shutdown = m68kspkr_shutdown,
|
|
};
|
|
|
|
static int __init m68kspkr_init(void)
|
|
{
|
|
int err;
|
|
|
|
if (!mach_beep) {
|
|
printk(KERN_INFO "m68kspkr: no lowlevel beep support\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
err = platform_driver_register(&m68kspkr_platform_driver);
|
|
if (err)
|
|
return err;
|
|
|
|
m68kspkr_platform_device = platform_device_alloc("m68kspkr", -1);
|
|
if (!m68kspkr_platform_device) {
|
|
err = -ENOMEM;
|
|
goto err_unregister_driver;
|
|
}
|
|
|
|
err = platform_device_add(m68kspkr_platform_device);
|
|
if (err)
|
|
goto err_free_device;
|
|
|
|
return 0;
|
|
|
|
err_free_device:
|
|
platform_device_put(m68kspkr_platform_device);
|
|
err_unregister_driver:
|
|
platform_driver_unregister(&m68kspkr_platform_driver);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void __exit m68kspkr_exit(void)
|
|
{
|
|
platform_device_unregister(m68kspkr_platform_device);
|
|
platform_driver_unregister(&m68kspkr_platform_driver);
|
|
}
|
|
|
|
module_init(m68kspkr_init);
|
|
module_exit(m68kspkr_exit);
|