Release 4.7 drivers/input/misc/ixp4xx-beeper.c
/*
* Generic IXP4xx beeper driver
*
* Copyright (C) 2005 Tower Technologies
*
* based on nslu2-io.c
* Copyright (C) 2004 Karen Spearel
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Maintainers: http://www.nslu2-linux.org/
*
* 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/module.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <mach/hardware.h>
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
MODULE_DESCRIPTION("ixp4xx beeper driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:ixp4xx-beeper");
static DEFINE_SPINLOCK(beep_lock);
static void ixp4xx_spkr_control(unsigned int pin, unsigned int count)
{
unsigned long flags;
spin_lock_irqsave(&beep_lock, flags);
if (count) {
gpio_direction_output(pin, 0);
*IXP4XX_OSRT2 = (count & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE;
} else {
gpio_direction_output(pin, 1);
gpio_direction_input(pin);
*IXP4XX_OSRT2 = 0;
}
spin_unlock_irqrestore(&beep_lock, flags);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alessandro zummo | alessandro zummo | 74 | 93.67% | 1 | 50.00% |
| linus walleij | linus walleij | 5 | 6.33% | 1 | 50.00% |
| Total | 79 | 100.00% | 2 | 100.00% |
static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
unsigned int pin = (unsigned int) input_get_drvdata(dev);
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 = (ixp4xx_timer_freq / (value * 4)) - 1;
ixp4xx_spkr_control(pin, count);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alessandro zummo | alessandro zummo | 106 | 95.50% | 1 | 25.00% |
| dmitry torokhov | dmitry torokhov | 3 | 2.70% | 1 | 25.00% |
| uwe kleine-koenig | uwe kleine-koenig | 1 | 0.90% | 1 | 25.00% |
| frederik deweerdt | frederik deweerdt | 1 | 0.90% | 1 | 25.00% |
| Total | 111 | 100.00% | 4 | 100.00% |
static irqreturn_t ixp4xx_spkr_interrupt(int irq, void *dev_id)
{
unsigned int pin = (unsigned int) dev_id;
/* clear interrupt */
*IXP4XX_OSST = IXP4XX_OSST_TIMER_2_PEND;
/* flip the beeper output */
gpio_set_value(pin, !gpio_get_value(pin));
return IRQ_HANDLED;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alessandro zummo | alessandro zummo | 24 | 54.55% | 1 | 50.00% |
| linus walleij | linus walleij | 20 | 45.45% | 1 | 50.00% |
| Total | 44 | 100.00% | 2 | 100.00% |
static int ixp4xx_spkr_probe(struct platform_device *dev)
{
struct input_dev *input_dev;
int err;
input_dev = input_allocate_device();
if (!input_dev)
return -ENOMEM;
input_set_drvdata(input_dev, (void *) dev->id);
input_dev->name = "ixp4xx beeper",
input_dev->phys = "ixp4xx/gpio";
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 = ixp4xx_spkr_event;
err = gpio_request(dev->id, "ixp4-beeper");
if (err)
goto err_free_device;
err = request_irq(IRQ_IXP4XX_TIMER2, &ixp4xx_spkr_interrupt,
IRQF_NO_SUSPEND, "ixp4xx-beeper",
(void *) dev->id);
if (err)
goto err_free_gpio;
err = input_register_device(input_dev);
if (err)
goto err_free_irq;
platform_set_drvdata(dev, input_dev);
return 0;
err_free_irq:
free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id);
err_free_gpio:
gpio_free(dev->id);
err_free_device:
input_free_device(input_dev);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alessandro zummo | alessandro zummo | 197 | 81.74% | 1 | 14.29% |
| linus walleij | linus walleij | 28 | 11.62% | 1 | 14.29% |
| lars-peter clausen | lars-peter clausen | 6 | 2.49% | 1 | 14.29% |
| dmitry torokhov | dmitry torokhov | 6 | 2.49% | 2 | 28.57% |
| jiri slaby | jiri slaby | 3 | 1.24% | 1 | 14.29% |
| ian campbell | ian campbell | 1 | 0.41% | 1 | 14.29% |
| Total | 241 | 100.00% | 7 | 100.00% |
static int ixp4xx_spkr_remove(struct platform_device *dev)
{
struct input_dev *input_dev = platform_get_drvdata(dev);
unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
input_unregister_device(input_dev);
/* turn the speaker off */
disable_irq(IRQ_IXP4XX_TIMER2);
ixp4xx_spkr_control(pin, 0);
free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id);
gpio_free(dev->id);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alessandro zummo | alessandro zummo | 59 | 78.67% | 1 | 25.00% |
| linus walleij | linus walleij | 7 | 9.33% | 1 | 25.00% |
| lars-peter clausen | lars-peter clausen | 6 | 8.00% | 1 | 25.00% |
| dmitry torokhov | dmitry torokhov | 3 | 4.00% | 1 | 25.00% |
| Total | 75 | 100.00% | 4 | 100.00% |
static void ixp4xx_spkr_shutdown(struct platform_device *dev)
{
struct input_dev *input_dev = platform_get_drvdata(dev);
unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
/* turn off the speaker */
disable_irq(IRQ_IXP4XX_TIMER2);
ixp4xx_spkr_control(pin, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alessandro zummo | alessandro zummo | 44 | 93.62% | 1 | 50.00% |
| dmitry torokhov | dmitry torokhov | 3 | 6.38% | 1 | 50.00% |
| Total | 47 | 100.00% | 2 | 100.00% |
static struct platform_driver ixp4xx_spkr_platform_driver = {
.driver = {
.name = "ixp4xx-beeper",
},
.probe = ixp4xx_spkr_probe,
.remove = ixp4xx_spkr_remove,
.shutdown = ixp4xx_spkr_shutdown,
};
module_platform_driver(ixp4xx_spkr_platform_driver);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| alessandro zummo | alessandro zummo | 583 | 85.48% | 3 | 21.43% |
| linus walleij | linus walleij | 63 | 9.24% | 2 | 14.29% |
| dmitry torokhov | dmitry torokhov | 15 | 2.20% | 2 | 14.29% |
| lars-peter clausen | lars-peter clausen | 12 | 1.76% | 1 | 7.14% |
| jiri slaby | jiri slaby | 3 | 0.44% | 1 | 7.14% |
| jj ding | jj ding | 2 | 0.29% | 1 | 7.14% |
| ian campbell | ian campbell | 1 | 0.15% | 1 | 7.14% |
| uwe kleine-koenig | uwe kleine-koenig | 1 | 0.15% | 1 | 7.14% |
| frederik deweerdt | frederik deweerdt | 1 | 0.15% | 1 | 7.14% |
| russell king | russell king | 1 | 0.15% | 1 | 7.14% |
| Total | 682 | 100.00% | 14 | 100.00% |
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