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#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/jiffies.h>
#include <linux/io.h>
#include <linux/kthread.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/wakelock.h>
#include <linux/slab.h>
#include <linux/irq.h>
#include <linux/errno.h>
#include <linux/gpio.h>
#include <mach/wmt_iomux.h>
#include <linux/input/mt.h>
#include <mach/hardware.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <asm/uaccess.h>
#define INPUT_IOC_MAGIC 'x'
#define INPUT_IOC_CMD_INPUT _IOR(INPUT_IOC_MAGIC, 1, int)
#define INPUT_IOC_MAXNR 1
static struct input_dev *g_input = NULL;
static int lcdX, lcdY;
static int g_Major;
static struct mutex ioc_mutex;
static struct class *dev_class = NULL;
extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
static struct input_dev *input_dev_alloc(void)
{
int err;
struct input_dev *input_dev;
input_dev = input_allocate_device();
if (!input_dev) {
printk("failed to allocate input device\n");
return NULL;
}
input_dev->name = "remote_input";
input_dev->evbit[0] = BIT_MASK(EV_SYN) | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) | BIT_MASK(EV_REL);
set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
//set_bit(ABS_MT_TRACKING_ID, input_dev->absbit);
input_set_abs_params(input_dev,
ABS_MT_POSITION_X, 0, lcdX, 0, 0);
input_set_abs_params(input_dev,
ABS_MT_POSITION_Y, 0, lcdY, 0, 0);
//input_set_abs_params(input_dev,
// ABS_MT_TRACKING_ID, 0, 5, 0, 0);
set_bit(KEY_BACK, input_dev->keybit);
set_bit(KEY_HOME, input_dev->keybit);
set_bit(KEY_MENU, input_dev->keybit);
set_bit(KEY_SEARCH, input_dev->keybit);
set_bit(KEY_ENTER, input_dev->keybit);
set_bit(KEY_UP, input_dev->keybit);
set_bit(KEY_PAGEUP, input_dev->keybit);
set_bit(KEY_LEFT, input_dev->keybit);
set_bit(KEY_RIGHT, input_dev->keybit);
set_bit(KEY_DOWN, input_dev->keybit);
set_bit(KEY_PAGEDOWN, input_dev->keybit);
set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
set_bit(KEY_VOLUMEUP, input_dev->keybit);
set_bit(BTN_LEFT, input_dev->keybit);
set_bit(BTN_RIGHT, input_dev->keybit);
set_bit(BTN_MIDDLE, input_dev->keybit);
set_bit(BTN_SIDE, input_dev->keybit);
set_bit(REL_X, input_dev->relbit);
set_bit(REL_Y, input_dev->relbit);
set_bit(REL_WHEEL, input_dev->relbit);
err = input_register_device(input_dev);
if (err) {
printk("input_dev_alloc: failed to register input device.\n");
input_free_device(input_dev);
input_dev = NULL;
}
return input_dev;
}
static long input_ioctl(struct file *dev, unsigned int cmd, unsigned long arg)
{
struct input_event event;
if (_IOC_TYPE(cmd) != INPUT_IOC_MAGIC){
printk("CMD ERROR!");
return -ENOTTY;
}
if (_IOC_NR(cmd) > INPUT_IOC_MAXNR){
printk("NO SUCH IO CMD!\n");
return -ENOTTY;
}
switch (cmd) {
case INPUT_IOC_CMD_INPUT:
copy_from_user(&event, (struct input_event*)arg, sizeof(struct input_event));
mutex_lock(&ioc_mutex);
input_event(g_input, event.type, event.code, event.value);
mutex_unlock(&ioc_mutex);
return 0;
}
return -EINVAL;
}
static int input_open(struct inode *inode, struct file *filp)
{
int ret = 0;
return ret;
}
static int input_close(struct inode *inode, struct file *filp)
{
return 0;
}
static struct file_operations input_fops = {
.unlocked_ioctl = input_ioctl,
.open = input_open,
.release = input_close,
};
static int __init remote_init(void)
{
struct device *dev = NULL;
int len = 127;
char retval[128] = {0},*p=NULL;
int tmp[6];
mutex_init(&ioc_mutex);
if (wmt_getsyspara("wmt.display.fb0", retval, &len)) {
printk(KERN_ERR "Can't get display param. \n");
return -EIO;
}
p = retval;
sscanf(p, "%d:[%d:%d:%d:%d:%d", &tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
lcdX = tmp[4];
lcdY = tmp[5];
g_input = input_dev_alloc();
if (!g_input){
printk(KERN_ERR "Alloc input device failed. \n");
return -ENODEV;
}
if ((g_Major = register_chrdev(0, "remote_input", &input_fops)) < 0) {
printk(KERN_ERR "Can't register char device. \n");
return -EIO;
}
dev_class = class_create(THIS_MODULE,"remote_input");
if (IS_ERR(dev_class)) {
unregister_chrdev(g_Major, "remote_input");
printk(KERN_ERR "Class create failed. \n");
return PTR_ERR(dev_class);
}
dev = device_create(dev_class, NULL, MKDEV(g_Major, 0), NULL,"remote_input");
if(!dev){
printk(KERN_ERR "Create device failed. \n");
return -ENODEV;
}
return 0;
}
module_init(remote_init);
static void __exit remote_exit(void)
{
device_destroy(dev_class, MKDEV(g_Major, 0));
class_destroy(dev_class);
unregister_chrdev(g_Major, "remote_input");
input_unregister_device(g_input);
//input_free_device(g_input);
mutex_destroy(&ioc_mutex);
}
module_exit(remote_exit);
MODULE_DESCRIPTION("Remote Input driver");
MODULE_LICENSE("GPL v2");
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