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/*
* Copyright (C) 2009 Motorola, Inc.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307, USA
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/spi/cpcap.h>
#include <linux/spi/cpcap-regbits.h>
#if defined(CONFIG_MFD_M4SENSORHUB) || defined(CONFIG_MFD_M4SENSORHUB_MODULE)
extern int m4sensorhub_stillmode_exit(void);
#endif
struct cpcap_key_data {
struct input_dev *input_dev;
struct cpcap_device *cpcap;
};
static int __init cpcap_key_probe(struct platform_device *pdev)
{
int err;
struct cpcap_key_data *key;
if (pdev->dev.platform_data == NULL) {
dev_err(&pdev->dev, "no platform_data\n");
return -EINVAL;
}
key = kzalloc(sizeof(*key), GFP_KERNEL);
if (!key)
return -ENOMEM;
key->cpcap = pdev->dev.platform_data;
key->input_dev = input_allocate_device();
if (key->input_dev == NULL) {
dev_err(&pdev->dev, "can't allocate input device\n");
err = -ENOMEM;
goto err0;
}
set_bit(EV_KEY, key->input_dev->evbit);
set_bit(KEY_MEDIA, key->input_dev->keybit);
set_bit(KEY_END, key->input_dev->keybit);
set_bit(KEY_POWER_DOUBLE, key->input_dev->keybit);
set_bit(KEY_PLAYCD, key->input_dev->keybit);
set_bit(KEY_VOLUMEDOWN, key->input_dev->keybit);
set_bit(KEY_VOLUMEUP, key->input_dev->keybit);
set_bit(KEY_POWER_SONG, key->input_dev->keybit);
set_bit(KEY_SENDFILE, key->input_dev->keybit);
key->input_dev->name = "cpcap-key";
err = input_register_device(key->input_dev);
if (err < 0) {
dev_err(&pdev->dev, "could not register input device.\n");
goto err1;
}
platform_set_drvdata(pdev, key);
cpcap_set_keydata(key->cpcap, key);
dev_info(&pdev->dev, "CPCAP key device probed\n");
return 0;
err1:
input_free_device(key->input_dev);
err0:
kfree(key);
return err;
}
static int __exit cpcap_key_remove(struct platform_device *pdev)
{
struct cpcap_key_data *key = platform_get_drvdata(pdev);
input_unregister_device(key->input_dev);
input_free_device(key->input_dev);
kfree(key);
return 0;
}
void cpcap_broadcast_key_event(struct cpcap_device *cpcap,
unsigned int code, int value)
{
struct cpcap_key_data *key = cpcap_get_keydata(cpcap);
/* TODO
#if defined(CONFIG_MFD_M4SENSORHUB) || defined(CONFIG_MFD_M4SENSORHUB_MODULE)
//Notify sensorhub driver of power key down event
if (key && value)
m4sensorhub_stillmode_exit();
#endif
*/
if (key && key->input_dev) {
input_report_key(key->input_dev, code, value);
/*sync with input subsystem to solve the key cached problem*/
input_sync(key->input_dev);
}
}
EXPORT_SYMBOL(cpcap_broadcast_key_event);
static struct platform_driver cpcap_key_driver = {
.probe = cpcap_key_probe,
.remove = __exit_p(cpcap_key_remove),
.driver = {
.name = "cpcap_key",
.owner = THIS_MODULE,
},
};
static int __init cpcap_key_init(void)
{
return platform_driver_register(&cpcap_key_driver);
}
module_init(cpcap_key_init);
static void __exit cpcap_key_exit(void)
{
platform_driver_unregister(&cpcap_key_driver);
}
module_exit(cpcap_key_exit);
MODULE_ALIAS("platform:cpcap_key");
MODULE_DESCRIPTION("CPCAP KEY driver");
MODULE_AUTHOR("Motorola");
MODULE_LICENSE("GPL");
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