/* drivers/input/sensors/access/kxtik.c
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*
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* Copyright (C) 2012-2015 ROCKCHIP.
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* Author: luowei <lw@rock-chips.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/interrupt.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/irq.h>
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#include <linux/miscdevice.h>
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#include <linux/gpio.h>
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#include <linux/uaccess.h>
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#include <asm/atomic.h>
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#include <linux/delay.h>
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#include <linux/input.h>
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#include <linux/workqueue.h>
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#include <linux/freezer.h>
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#include <linux/of_gpio.h>
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#ifdef CONFIG_HAS_EARLYSUSPEND
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#include <linux/earlysuspend.h>
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#endif
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#include <linux/rk_keys.h>
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#include <linux/sensor-dev.h>
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#define CM3232_CLOSE 0x01
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#define CM3232_ADDR_COM 0
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#define CM3232_ADDR_DATA 50
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#define CM3232_DRV_NAME "cm3232"
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//command code
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#define COMMAND_CTRL 0
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#define COMMAND_ALS_DATA 50 //ALS: 15:8 MSB 8bits data
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//7:0 LSB 8bits data
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/****************operate according to sensor chip:start************/
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static int sensor_active(struct i2c_client *client, int enable, int rate)
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{
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struct sensor_private_data *sensor =
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(struct sensor_private_data *) i2c_get_clientdata(client);
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if(enable)
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{
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sensor->status_cur = SENSOR_ON;
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}
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else
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{
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sensor->status_cur = SENSOR_OFF;
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}
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return 0;
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}
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static int sensor_init(struct i2c_client *client)
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{
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struct sensor_private_data *sensor =
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(struct sensor_private_data *) i2c_get_clientdata(client);
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int result = 0;
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result = sensor->ops->active(client,0,0);
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if(result)
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{
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printk("%s:line=%d,error\n",__func__,__LINE__);
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return result;
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}
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sensor->status_cur = SENSOR_OFF;
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return result;
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}
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static int sensor_report_value(struct i2c_client *client)
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{
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struct sensor_private_data *sensor =
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(struct sensor_private_data *) i2c_get_clientdata(client);
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struct sensor_platform_data *pdata = sensor->pdata;
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int gpio_value = 0;
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gpio_value = gpio_get_value(pdata->irq_pin);
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if(gpio_value == 0)
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{
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//send power key to sleep
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rk_send_power_key(1);
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rk_send_power_key(0);
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}
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else
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{
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//rk_send_power_key(1);
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//rk_send_power_key(0);
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rk_send_wakeup_key(); // wake up the system
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}
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return 0;
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}
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static struct sensor_operate hall_och165t_ops = {
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.name = "och165t",
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.type = SENSOR_TYPE_HALL, //sensor type and it should be correct
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.id_i2c = HALL_ID_OCH165T, //i2c id number
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.read_reg = SENSOR_UNKNOW_DATA, //read data
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.read_len = 2, //data length
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.id_reg = SENSOR_UNKNOW_DATA, //read device id from this register
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.id_data = SENSOR_UNKNOW_DATA, //device id
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.precision = 8, //8 bits
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.ctrl_reg = SENSOR_UNKNOW_DATA, //enable or disable
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.int_status_reg = SENSOR_UNKNOW_DATA, //intterupt status register
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.range = {100,65535}, //range
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.brightness = {10,255}, // brightness
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.trig = SENSOR_UNKNOW_DATA,
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.active = sensor_active,
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.init = sensor_init,
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.report = sensor_report_value,
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};
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/****************operate according to sensor chip:end************/
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static int hall_och165t_probe(struct i2c_client *client,
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const struct i2c_device_id *devid)
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{
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return sensor_register_device(client, NULL, devid, &hall_och165t_ops);
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}
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static int hall_och165t_remove(struct i2c_client *client)
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{
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return sensor_unregister_device(client, NULL, &hall_och165t_ops);
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}
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static const struct i2c_device_id hall_och165t_id[] = {
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{"hall_och165t", HALL_ID_OCH165T},
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{}
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};
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static struct i2c_driver hall_och165t_driver = {
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.probe = hall_och165t_probe,
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.remove = hall_och165t_remove,
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.shutdown = sensor_shutdown,
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.id_table = hall_och165t_id,
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.driver = {
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.name = "hall_och165t",
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#ifdef CONFIG_PM
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.pm = &sensor_pm_ops,
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#endif
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},
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};
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module_i2c_driver(hall_och165t_driver);
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MODULE_AUTHOR("luowei <lw@rock-chips.com>");
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MODULE_DESCRIPTION("och165t hall driver");
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MODULE_LICENSE("GPL");
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