| /* |
| * 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"); |