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/*******************************************************************************
* Copyright (c) 2013 Linaro
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Linaro <linaro-dev@lists.linaro.org>
*
* Test module for test new evdev ioctl commands:
* EVIOCGSUSPENDBLOCK, EVIOCSSUSPENDBLOCK, EVIOCSCLOCKID
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
MODULE_AUTHOR("Bintian Wang <bintian.wang@linaro.org>");
MODULE_DESCRIPTION("Linaro Juice ioctl evdev test");
MODULE_LICENSE("GPL");
static unsigned char juice_keycode[10] = {
[0] = KEY_1,
[1] = KEY_2,
[2] = KEY_3,
[3] = KEY_4,
[4] = KEY_5,
[5] = KEY_6,
[6] = KEY_7,
[7] = KEY_8,
[8] = KEY_9,
[9] = KEY_0,
};
static struct input_dev *juice_testkbd;
static unsigned int run = 0;
static unsigned int interval = 500; /*Defualt interval for reporting key to up layer*/
struct workqueue_struct *juice_kbd_wq;
struct kobject *juice_sys;
static void juice_key_report(struct work_struct *work)
{
while(1)
{
if(run)
{
/*For test, just report KEY8 and KEY_9 here*/
input_report_key(juice_testkbd, KEY_8, 1);
input_report_key(juice_testkbd, KEY_8, 0);
input_report_key(juice_testkbd, KEY_9, 1);
input_report_key(juice_testkbd, KEY_9, 0);
input_sync(juice_testkbd);
msleep(interval);
} else {
break;
}
}
}
static DECLARE_WORK(juice_kbd_wk, &juice_key_report);
static ssize_t run_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
return sprintf(buf, "%d \n", run);
}
static ssize_t run_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t count)
{
int err;
err = kstrtouint(buf, 10, &run);
if (err)
return err;
if(1 == run)
queue_work(juice_kbd_wq, &juice_kbd_wk);
return count;
}
static ssize_t interval_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
return sprintf(buf, "%d ms \n", interval);
}
static ssize_t interval_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t count)
{
int err;
err = kstrtouint(buf, 10, &interval);
if (err)
return err;
if (interval > 1000)
interval = 1000;
return count;
}
static struct kobj_attribute run_attr =
__ATTR(run, 0777, run_show, run_store);
static struct kobj_attribute interval_attr =
__ATTR(interval, 0777, interval_show, interval_store);
static int __init juice_testkbd_init(void)
{
int i, error;
juice_testkbd = input_allocate_device();
if (!juice_testkbd)
return -ENOMEM;
juice_testkbd->name = "Juice EVDEV Test Module";
juice_testkbd->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
juice_testkbd->keycode = juice_keycode;
juice_testkbd->keycodesize = sizeof(unsigned char);
juice_testkbd->keycodemax = ARRAY_SIZE(juice_keycode);
for (i = 0; i < 10; i++)
set_bit(juice_keycode[i], juice_testkbd->keybit);
error = input_register_device(juice_testkbd);
if (error) {
input_free_device(juice_testkbd);
return error;
}
juice_kbd_wq = create_workqueue("juice_input_test_wq");
juice_sys = kobject_create_and_add("juice_input", NULL);
if (!juice_sys)
return -ENOMEM;
sysfs_create_file(juice_sys, &run_attr.attr);
sysfs_create_file(juice_sys, &interval_attr.attr);
return 0;
}
static void __exit juice_testkbd_exit(void)
{
sysfs_remove_file(juice_sys, &run_attr.attr);
sysfs_remove_file(juice_sys, &interval_attr.attr);
kobject_del(juice_sys);
flush_workqueue(juice_kbd_wq);
destroy_workqueue(juice_kbd_wq);
juice_kbd_wq = NULL;
input_unregister_device(juice_testkbd);
}
module_init(juice_testkbd_init);
module_exit(juice_testkbd_exit);
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