1 /* drivers/input/sensors/sensor-dev.c - handle all gsensor in this file
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3 * Copyright (C) 2012-2015 ROCKCHIP.
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4 * Author: luowei <lw@rock-chips.com>
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6 * This software is licensed under the terms of the GNU General Public
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7 * License version 2, as published by the Free Software Foundation, and
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8 * may be copied, distributed, and modified under those terms.
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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17 #include <linux/interrupt.h>
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18 #include <linux/i2c.h>
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19 #include <linux/slab.h>
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20 #include <linux/irq.h>
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21 #include <linux/miscdevice.h>
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22 #include <linux/gpio.h>
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23 #include <asm/uaccess.h>
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24 #include <asm/atomic.h>
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25 #include <linux/delay.h>
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26 #include <linux/input.h>
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27 #include <linux/workqueue.h>
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28 #include <linux/freezer.h>
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29 #include <mach/gpio.h>
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30 #include <mach/board.h>
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31 #ifdef CONFIG_HAS_EARLYSUSPEND
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32 #include <linux/earlysuspend.h>
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34 #include <linux/akm8975.h>
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35 #include <linux/l3g4200d.h>
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36 #include <linux/sensor-dev.h>
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40 #define SENSOR_DEBUG_TYPE SENSOR_TYPE_ACCEL
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41 #define DBG(x...) if(sensor->pdata->type == SENSOR_DEBUG_TYPE) printk(x)
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46 #define SENSOR_VERSION_AND_TIME "sensor-dev.c v1.0 2013-2-18"
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49 struct sensor_private_data *g_sensor[SENSOR_NUM_TYPES];
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50 static struct sensor_operate *sensor_ops[SENSOR_NUM_ID];
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51 static struct class *g_sensor_class[SENSOR_NUM_TYPES];
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54 static int sensor_get_id(struct i2c_client *client, int *value)
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56 struct sensor_private_data *sensor =
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57 (struct sensor_private_data *) i2c_get_clientdata(client);
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59 char temp = sensor->ops->id_reg;
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62 if(sensor->ops->id_reg >= 0)
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66 result = sensor_rx_data(client, &temp, 1);
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75 if(*value != sensor->ops->id_data)
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77 printk("%s:id=0x%x is not 0x%x\n",__func__,*value, sensor->ops->id_data);
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81 DBG("%s:devid=0x%x\n",__func__,*value);
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87 static int sensor_initial(struct i2c_client *client)
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89 struct sensor_private_data *sensor =
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90 (struct sensor_private_data *) i2c_get_clientdata(client);
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93 //register setting according to chip datasheet
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94 result = sensor->ops->init(client);
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97 printk("%s:fail to init sensor\n",__func__);
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102 DBG("%s:ctrl_data=0x%x\n",__func__,sensor->ops->ctrl_data);
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108 static int sensor_chip_init(struct i2c_client *client)
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110 struct sensor_private_data *sensor =
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111 (struct sensor_private_data *) i2c_get_clientdata(client);
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112 struct sensor_operate *ops = sensor_ops[(int)sensor->i2c_id->driver_data];
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121 printk("%s:ops is null,sensor name is %s\n",__func__,sensor->i2c_id->name);
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126 if((sensor->type != ops->type) || ((int)sensor->i2c_id->driver_data != ops->id_i2c))
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128 printk("%s:type or id is different:type=%d,%d,id=%d,%d\n",__func__,sensor->type, ops->type, (int)sensor->i2c_id->driver_data, ops->id_i2c);
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133 if(!ops->init || !ops->active || !ops->report)
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135 printk("%s:error:some function is needed\n",__func__);
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140 result = sensor_get_id(sensor->client, &sensor->devid);//get id
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143 printk("%s:fail to read %s devid:0x%x\n",__func__, sensor->i2c_id->name, sensor->devid);
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147 printk("%s:%s:devid=0x%x,ops=0x%p\n",__func__, sensor->i2c_id->name, sensor->devid,sensor->ops);
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149 result = sensor_initial(sensor->client); //init sensor
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152 printk("%s:fail to init sensor\n",__func__);
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163 static int sensor_reset_rate(struct i2c_client *client, int rate)
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165 struct sensor_private_data *sensor =
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166 (struct sensor_private_data *) i2c_get_clientdata(client);
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169 result = sensor->ops->active(client,SENSOR_OFF,rate);
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170 sensor->ops->init(client);
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171 result = sensor->ops->active(client,SENSOR_ON,rate);
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176 static int sensor_get_data(struct i2c_client *client)
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178 struct sensor_private_data *sensor =
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179 (struct sensor_private_data *) i2c_get_clientdata(client);
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182 result = sensor->ops->report(client);
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186 /* set data_ready */
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187 atomic_set(&sensor->data_ready, 1);
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188 /*wake up data_ready work queue*/
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189 wake_up(&sensor->data_ready_wq);
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196 int sensor_get_cached_data(struct i2c_client* client, char *buffer, int length, struct sensor_axis *axis)
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198 struct sensor_private_data* sensor = (struct sensor_private_data *)i2c_get_clientdata(client);
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199 wait_event_interruptible_timeout(sensor->data_ready_wq,
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200 atomic_read(&(sensor->data_ready) ),
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201 msecs_to_jiffies(1000) );
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202 if ( 0 == atomic_read(&(sensor->data_ready) ) ) {
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203 printk("waiting 'data_ready_wq' timed out.");
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208 mutex_lock(&sensor->data_mutex);
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210 switch(sensor->type)
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212 case SENSOR_TYPE_ACCEL:
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213 *axis = sensor->axis;
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216 case SENSOR_TYPE_COMPASS:
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217 memcpy(buffer, sensor->sensor_data, length);
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221 mutex_unlock(&sensor->data_mutex);
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230 static void sensor_delaywork_func(struct work_struct *work)
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232 struct delayed_work *delaywork = container_of(work, struct delayed_work, work);
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233 struct sensor_private_data *sensor = container_of(delaywork, struct sensor_private_data, delaywork);
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234 struct i2c_client *client = sensor->client;
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236 mutex_lock(&sensor->sensor_mutex);
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237 if (sensor_get_data(client) < 0)
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238 DBG(KERN_ERR "%s: Get data failed\n",__func__);
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240 if(!sensor->pdata->irq_enable)//restart work while polling
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241 schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));
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244 //if((sensor->ops->trig == IRQF_TRIGGER_LOW) || (sensor->ops->trig == IRQF_TRIGGER_HIGH))
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245 //enable_irq(sensor->client->irq);
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247 mutex_unlock(&sensor->sensor_mutex);
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249 DBG("%s:%s\n",__func__,sensor->i2c_id->name);
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253 * This is a threaded IRQ handler so can access I2C/SPI. Since all
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254 * interrupts are clear on read the IRQ line will be reasserted and
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255 * the physical IRQ will be handled again if another interrupt is
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256 * asserted while we run - in the normal course of events this is a
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257 * rare occurrence so we save I2C/SPI reads. We're also assuming that
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258 * it's rare to get lots of interrupts firing simultaneously so try to
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261 static irqreturn_t sensor_interrupt(int irq, void *dev_id)
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263 struct sensor_private_data *sensor = (struct sensor_private_data *)dev_id;
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266 if (sensor_get_data(sensor->client) < 0)
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267 DBG(KERN_ERR "%s: Get data failed\n",__func__);
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268 msleep(sensor->pdata->poll_delay_ms);
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271 //if((sensor->ops->trig == IRQF_TRIGGER_LOW) || (sensor->ops->trig == IRQF_TRIGGER_HIGH))
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272 //disable_irq_nosync(irq);
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273 //schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));
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274 DBG("%s:irq=%d\n",__func__,irq);
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275 return IRQ_HANDLED;
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279 static int sensor_irq_init(struct i2c_client *client)
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281 struct sensor_private_data *sensor =
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282 (struct sensor_private_data *) i2c_get_clientdata(client);
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285 if((sensor->pdata->irq_enable)&&(sensor->ops->trig != SENSOR_UNKNOW_DATA))
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287 //INIT_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);
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288 if(sensor->pdata->poll_delay_ms < 0)
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289 sensor->pdata->poll_delay_ms = 30;
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291 result = gpio_request(client->irq, sensor->i2c_id->name);
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294 printk("%s:fail to request gpio :%d\n",__func__,client->irq);
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297 gpio_pull_updown(client->irq, PullEnable);
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298 irq = gpio_to_irq(client->irq);
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299 //result = request_irq(irq, sensor_interrupt, sensor->ops->trig, sensor->ops->name, sensor);
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300 result = request_threaded_irq(irq, NULL, sensor_interrupt, sensor->ops->trig, sensor->ops->name, sensor);
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302 printk(KERN_ERR "%s:fail to request irq = %d, ret = 0x%x\n",__func__, irq, result);
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306 if((sensor->pdata->type == SENSOR_TYPE_GYROSCOPE) || (sensor->pdata->type == SENSOR_TYPE_ACCEL))
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307 disable_irq_nosync(client->irq);//disable irq
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308 if(((sensor->pdata->type == SENSOR_TYPE_LIGHT) || (sensor->pdata->type == SENSOR_TYPE_PROXIMITY))&& (!(sensor->ops->trig & IRQF_SHARED)))
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309 disable_irq_nosync(client->irq);//disable irq
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310 printk("%s:use irq=%d\n",__func__,irq);
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312 else if(!sensor->pdata->irq_enable)
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314 INIT_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);
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315 if(sensor->pdata->poll_delay_ms < 0)
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316 sensor->pdata->poll_delay_ms = 30;
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318 printk("%s:use polling,delay=%d ms\n",__func__,sensor->pdata->poll_delay_ms);
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325 #ifdef CONFIG_HAS_EARLYSUSPEND
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326 static void sensor_suspend(struct early_suspend *h)
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328 struct sensor_private_data *sensor =
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329 container_of(h, struct sensor_private_data, early_suspend);
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331 if(sensor->ops->suspend)
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332 sensor->ops->suspend(sensor->client);
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336 static void sensor_resume(struct early_suspend *h)
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338 struct sensor_private_data *sensor =
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339 container_of(h, struct sensor_private_data, early_suspend);
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341 if(sensor->ops->resume)
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342 sensor->ops->resume(sensor->client);
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346 static int gsensor_dev_open(struct inode *inode, struct file *file)
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348 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];
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349 //struct i2c_client *client = sensor->client;
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358 static int gsensor_dev_release(struct inode *inode, struct file *file)
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360 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];
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361 //struct i2c_client *client = sensor->client;
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369 /* ioctl - I/O control */
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370 static long gsensor_dev_ioctl(struct file *file,
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371 unsigned int cmd, unsigned long arg)
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373 struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];
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374 struct i2c_client *client = sensor->client;
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375 void __user *argp = (void __user *)arg;
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376 struct sensor_axis axis = {0};
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381 case GSENSOR_IOCTL_APP_SET_RATE:
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382 if (copy_from_user(&rate, argp, sizeof(rate)))
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393 case GSENSOR_IOCTL_START:
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394 DBG("%s:GSENSOR_IOCTL_START start,status=%d\n", __func__,sensor->status_cur);
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395 mutex_lock(&sensor->operation_mutex);
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396 if(++sensor->start_count == 1)
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398 if(sensor->status_cur == SENSOR_OFF)
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400 atomic_set(&(sensor->data_ready), 0);
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401 if ( (result = sensor->ops->active(client, 1, 0) ) < 0 ) {
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402 mutex_unlock(&sensor->operation_mutex);
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403 printk("%s:fail to active sensor,ret=%d\n",__func__,result);
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406 if(sensor->pdata->irq_enable)
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408 DBG("%s:enable irq,irq=%d\n",__func__,client->irq);
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409 enable_irq(client->irq); //enable irq
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413 PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);
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414 schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));
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416 sensor->status_cur = SENSOR_ON;
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419 mutex_unlock(&sensor->operation_mutex);
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420 DBG("%s:GSENSOR_IOCTL_START OK\n", __func__);
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423 case GSENSOR_IOCTL_CLOSE:
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424 DBG("%s:GSENSOR_IOCTL_CLOSE start,status=%d\n", __func__,sensor->status_cur);
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425 mutex_lock(&sensor->operation_mutex);
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426 if(--sensor->start_count == 0)
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428 if(sensor->status_cur == SENSOR_ON)
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430 atomic_set(&(sensor->data_ready), 0);
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431 if ( (result = sensor->ops->active(client, 0, 0) ) < 0 ) {
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432 mutex_unlock(&sensor->operation_mutex);
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436 if(sensor->pdata->irq_enable)
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438 DBG("%s:disable irq,irq=%d\n",__func__,client->irq);
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439 disable_irq_nosync(client->irq);//disable irq
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442 cancel_delayed_work_sync(&sensor->delaywork);
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443 sensor->status_cur = SENSOR_OFF;
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446 DBG("%s:GSENSOR_IOCTL_CLOSE OK\n", __func__);
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449 mutex_unlock(&sensor->operation_mutex);
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452 case GSENSOR_IOCTL_APP_SET_RATE:
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453 DBG("%s:GSENSOR_IOCTL_APP_SET_RATE start\n", __func__);
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454 mutex_lock(&sensor->operation_mutex);
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455 result = sensor_reset_rate(client, rate);
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457 mutex_unlock(&sensor->operation_mutex);
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461 sensor->status_cur = SENSOR_ON;
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462 mutex_unlock(&sensor->operation_mutex);
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463 DBG("%s:GSENSOR_IOCTL_APP_SET_RATE OK\n", __func__);
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466 case GSENSOR_IOCTL_GETDATA:
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467 mutex_lock(&sensor->data_mutex);
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468 memcpy(&axis, &sensor->axis, sizeof(sensor->axis)); //get data from buffer
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469 mutex_unlock(&sensor->data_mutex);
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477 case GSENSOR_IOCTL_GETDATA:
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478 if ( copy_to_user(argp, &axis, sizeof(axis) ) ) {
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479 printk("failed to copy sense data to user space.");
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483 DBG("%s:GSENSOR_IOCTL_GETDATA OK\n", __func__);
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493 static ssize_t gsensor_set_orientation_online(struct class *class,
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494 struct class_attribute *attr, const char *buf, size_t count)
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497 char orientation[20];
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500 struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];
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501 struct sensor_platform_data *pdata = sensor->pdata;
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504 char *p = strstr(buf,"gsensor_class");
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505 int start = strcspn(p,"{");
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506 int end = strcspn(p,"}");
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508 strncpy(orientation,p+start,end-start+1);
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512 while(strncmp(tmp,"}",1)!=0)
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514 if((strncmp(tmp,",",1)==0)||(strncmp(tmp,"{",1)==0))
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520 else if(strncmp(tmp,"-",1)==0)
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522 pdata->orientation[i++]=-1;
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523 DBG("i=%d,data=%d\n",i,pdata->orientation[i]);
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528 pdata->orientation[i++]=tmp[0]-48;
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529 DBG("----i=%d,data=%d\n",i,pdata->orientation[i]);
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537 DBG("i=%d gsensor_info=%d\n",i,pdata->orientation[i]);
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542 static CLASS_ATTR(orientation, 0660, NULL, gsensor_set_orientation_online);
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544 static int gsensor_class_init(void)
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547 struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];
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548 g_sensor_class[SENSOR_TYPE_ACCEL] = class_create(THIS_MODULE, "gsensor_class");
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549 ret = class_create_file(g_sensor_class[SENSOR_TYPE_ACCEL], &class_attr_orientation);
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552 printk("%s:Fail to creat class\n",__func__);
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555 printk("%s:%s\n",__func__,sensor->i2c_id->name);
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561 static int compass_dev_open(struct inode *inode, struct file *file)
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563 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_COMPASS];
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564 //struct i2c_client *client = sensor->client;
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572 static int compass_dev_release(struct inode *inode, struct file *file)
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574 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_COMPASS];
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575 //struct i2c_client *client = sensor->client;
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583 /* ioctl - I/O control */
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584 static long compass_dev_ioctl(struct file *file,
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585 unsigned int cmd, unsigned long arg)
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587 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_COMPASS];
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588 //struct i2c_client *client = sensor->client;
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589 //void __user *argp = (void __user *)arg;
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596 static int gyro_dev_open(struct inode *inode, struct file *file)
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598 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_GYROSCOPE];
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599 //struct i2c_client *client = sensor->client;
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608 static int gyro_dev_release(struct inode *inode, struct file *file)
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610 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_GYROSCOPE];
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611 //struct i2c_client *client = sensor->client;
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620 /* ioctl - I/O control */
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621 static long gyro_dev_ioctl(struct file *file,
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622 unsigned int cmd, unsigned long arg)
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624 struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_GYROSCOPE];
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625 struct i2c_client *client = sensor->client;
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626 void __user *argp = (void __user *)arg;
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630 case L3G4200D_IOCTL_GET_ENABLE:
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631 result = !sensor->status_cur;
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632 if (copy_to_user(argp, &result, sizeof(result)))
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634 printk("%s:failed to copy status to user space.\n",__FUNCTION__);
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638 DBG("%s :L3G4200D_IOCTL_GET_ENABLE,status=%d\n",__FUNCTION__,result);
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640 case L3G4200D_IOCTL_SET_ENABLE:
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641 DBG("%s :L3G4200D_IOCTL_SET_ENABLE,flag=%d\n",__FUNCTION__,*(unsigned int *)argp);
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642 mutex_lock(&sensor->operation_mutex);
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643 if(*(unsigned int *)argp)
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645 if(sensor->status_cur == SENSOR_OFF)
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647 if ( (result = sensor->ops->active(client, 1, ODR100_BW12_5) ) < 0 ) {
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648 mutex_unlock(&sensor->operation_mutex);
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649 printk("%s:fail to active sensor,ret=%d\n",__func__,result);
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652 if(sensor->pdata->irq_enable)
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654 DBG("%s:enable irq,irq=%d\n",__func__,client->irq);
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655 enable_irq(client->irq); //enable irq
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659 PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);
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660 schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));
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662 sensor->status_cur = SENSOR_ON;
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667 if(sensor->status_cur == SENSOR_ON)
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669 if ( (result = sensor->ops->active(client, 0, 0) ) < 0 ) {
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670 mutex_unlock(&sensor->operation_mutex);
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674 if(sensor->pdata->irq_enable)
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676 DBG("%s:disable irq,irq=%d\n",__func__,client->irq);
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677 disable_irq_nosync(client->irq);//disable irq
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680 cancel_delayed_work_sync(&sensor->delaywork);
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681 sensor->status_cur = SENSOR_OFF;
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685 result = sensor->status_cur;
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686 if (copy_to_user(argp, &result, sizeof(result)))
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688 printk("%s:failed to copy sense data to user space.\n",__FUNCTION__);
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692 mutex_unlock(&sensor->operation_mutex);
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693 DBG("%s:L3G4200D_IOCTL_SET_ENABLE OK\n", __func__);
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695 case L3G4200D_IOCTL_SET_DELAY:
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696 mutex_lock(&sensor->operation_mutex);
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697 if (copy_from_user(&rate, argp, sizeof(rate)))
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699 if(sensor->status_cur == SENSOR_OFF)
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701 if ( (result = sensor->ops->active(client, 1, rate) ) < 0 ) {
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702 mutex_unlock(&sensor->operation_mutex);
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703 printk("%s:fail to active sensor,ret=%d\n",__func__,result);
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707 if(sensor->pdata->irq_enable)
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709 DBG("%s:enable irq,irq=%d\n",__func__,client->irq);
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710 enable_irq(client->irq); //enable irq
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714 PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);
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715 schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));
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717 sensor->status_cur = SENSOR_ON;
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720 mutex_unlock(&sensor->operation_mutex);
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721 DBG("%s :L3G4200D_IOCTL_SET_DELAY,rate=%d\n",__FUNCTION__,rate);
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725 printk("%s:error,cmd=0x%x\n",__func__,cmd);
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729 DBG("%s:line=%d,cmd=0x%x\n",__func__,__LINE__,cmd);
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735 static int light_dev_open(struct inode *inode, struct file *file)
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737 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_LIGHT];
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738 //struct i2c_client *client = sensor->client;
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748 static int light_dev_release(struct inode *inode, struct file *file)
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750 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_LIGHT];
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751 //struct i2c_client *client = sensor->client;
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759 /* ioctl - I/O control */
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760 static long light_dev_ioctl(struct file *file,
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761 unsigned int cmd, unsigned long arg)
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763 struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_LIGHT];
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764 struct i2c_client *client = sensor->client;
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765 unsigned int *argp = (unsigned int *)arg;
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770 case LIGHTSENSOR_IOCTL_GET_ENABLED:
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771 *argp = sensor->status_cur;
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773 case LIGHTSENSOR_IOCTL_ENABLE:
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774 DBG("%s:LIGHTSENSOR_IOCTL_ENABLE start\n", __func__);
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775 mutex_lock(&sensor->operation_mutex);
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776 if(*(unsigned int *)argp)
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778 if(sensor->status_cur == SENSOR_OFF)
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780 if ( (result = sensor->ops->active(client, SENSOR_ON, 0) ) < 0 ) {
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781 mutex_unlock(&sensor->operation_mutex);
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782 printk("%s:fail to active sensor,ret=%d\n",__func__,result);
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785 if(sensor->pdata->irq_enable)
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787 if(!(sensor->ops->trig & IRQF_SHARED))
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789 DBG("%s:enable irq,irq=%d\n",__func__,client->irq);
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790 enable_irq(client->irq); //enable irq
\r
795 PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);
\r
796 schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));
\r
799 sensor->status_cur = SENSOR_ON;
\r
804 if(sensor->status_cur == SENSOR_ON)
\r
806 if ( (result = sensor->ops->active(client, SENSOR_OFF, 0) ) < 0 ) {
\r
807 mutex_unlock(&sensor->operation_mutex);
\r
811 if(sensor->pdata->irq_enable)
\r
813 if(!(sensor->ops->trig & IRQF_SHARED))
\r
815 DBG("%s:disable irq,irq=%d\n",__func__,client->irq);
\r
816 disable_irq_nosync(client->irq);//disable irq
\r
820 cancel_delayed_work_sync(&sensor->delaywork);
\r
822 sensor->status_cur = SENSOR_OFF;
\r
825 mutex_unlock(&sensor->operation_mutex);
\r
826 DBG("%s:LIGHTSENSOR_IOCTL_ENABLE OK\n", __func__);
\r
838 static int proximity_dev_open(struct inode *inode, struct file *file)
\r
840 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_PROXIMITY];
\r
841 //struct i2c_client *client = sensor->client;
\r
849 static int proximity_dev_release(struct inode *inode, struct file *file)
\r
851 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_PROXIMITY];
\r
852 //struct i2c_client *client = sensor->client;
\r
860 /* ioctl - I/O control */
\r
861 static long proximity_dev_ioctl(struct file *file,
\r
862 unsigned int cmd, unsigned long arg)
\r
864 struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_PROXIMITY];
\r
865 struct i2c_client *client = sensor->client;
\r
866 unsigned int *argp = (unsigned int *)arg;
\r
870 case PSENSOR_IOCTL_GET_ENABLED:
\r
871 *argp = sensor->status_cur;
\r
873 case PSENSOR_IOCTL_ENABLE:
\r
874 DBG("%s:PSENSOR_IOCTL_ENABLE start\n", __func__);
\r
875 mutex_lock(&sensor->operation_mutex);
\r
876 if(*(unsigned int *)argp)
\r
878 if(sensor->status_cur == SENSOR_OFF)
\r
880 if ( (result = sensor->ops->active(client, SENSOR_ON, 0) ) < 0 ) {
\r
881 mutex_unlock(&sensor->operation_mutex);
\r
882 printk("%s:fail to active sensor,ret=%d\n",__func__,result);
\r
886 if(sensor->pdata->irq_enable)
\r
888 if(!(sensor->ops->trig & IRQF_SHARED))
\r
890 DBG("%s:enable irq,irq=%d\n",__func__,client->irq);
\r
891 enable_irq(client->irq); //enable irq
\r
896 PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);
\r
897 schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));
\r
900 sensor->status_cur = SENSOR_ON;
\r
905 if(sensor->status_cur == SENSOR_ON)
\r
907 if ( (result = sensor->ops->active(client, SENSOR_OFF, 0) ) < 0 ) {
\r
908 mutex_unlock(&sensor->operation_mutex);
\r
911 if(sensor->pdata->irq_enable)
\r
913 if(!(sensor->ops->trig & IRQF_SHARED))
\r
915 DBG("%s:disable irq,irq=%d\n",__func__,client->irq);
\r
916 disable_irq_nosync(client->irq);//disable irq
\r
920 cancel_delayed_work_sync(&sensor->delaywork);
\r
921 sensor->status_cur = SENSOR_OFF;
\r
924 mutex_unlock(&sensor->operation_mutex);
\r
925 DBG("%s:PSENSOR_IOCTL_ENABLE OK\n", __func__);
\r
936 static int temperature_dev_open(struct inode *inode, struct file *file)
\r
938 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_TEMPERATURE];
\r
939 //struct i2c_client *client = sensor->client;
\r
948 static int temperature_dev_release(struct inode *inode, struct file *file)
\r
950 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_TEMPERATURE];
\r
951 //struct i2c_client *client = sensor->client;
\r
960 /* ioctl - I/O control */
\r
961 static long temperature_dev_ioctl(struct file *file,
\r
962 unsigned int cmd, unsigned long arg)
\r
964 //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_TEMPERATURE];
\r
965 //struct i2c_client *client = sensor->client;
\r
966 //void __user *argp = (void __user *)arg;
\r
974 static int sensor_misc_device_register(struct sensor_private_data *sensor, int type)
\r
980 case SENSOR_TYPE_ACCEL:
\r
981 if(!sensor->ops->misc_dev)
\r
983 sensor->fops.owner = THIS_MODULE;
\r
984 sensor->fops.unlocked_ioctl = gsensor_dev_ioctl;
\r
985 sensor->fops.open = gsensor_dev_open;
\r
986 sensor->fops.release = gsensor_dev_release;
\r
988 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;
\r
989 sensor->miscdev.name = "mma8452_daemon";
\r
990 sensor->miscdev.fops = &sensor->fops;
\r
994 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));
\r
1000 case SENSOR_TYPE_COMPASS:
\r
1001 if(!sensor->ops->misc_dev)
\r
1003 sensor->fops.owner = THIS_MODULE;
\r
1004 sensor->fops.unlocked_ioctl = compass_dev_ioctl;
\r
1005 sensor->fops.open = compass_dev_open;
\r
1006 sensor->fops.release = compass_dev_release;
\r
1008 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;
\r
1009 sensor->miscdev.name = "compass";
\r
1010 sensor->miscdev.fops = &sensor->fops;
\r
1014 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));
\r
1020 case SENSOR_TYPE_GYROSCOPE:
\r
1021 if(!sensor->ops->misc_dev)
\r
1023 sensor->fops.owner = THIS_MODULE;
\r
1024 sensor->fops.unlocked_ioctl = gyro_dev_ioctl;
\r
1025 sensor->fops.open = gyro_dev_open;
\r
1026 sensor->fops.release = gyro_dev_release;
\r
1028 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;
\r
1029 sensor->miscdev.name = "gyrosensor";
\r
1030 sensor->miscdev.fops = &sensor->fops;
\r
1034 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));
\r
1040 case SENSOR_TYPE_LIGHT:
\r
1041 if(!sensor->ops->misc_dev)
\r
1043 sensor->fops.owner = THIS_MODULE;
\r
1044 sensor->fops.unlocked_ioctl = light_dev_ioctl;
\r
1045 sensor->fops.open = light_dev_open;
\r
1046 sensor->fops.release = light_dev_release;
\r
1048 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;
\r
1049 sensor->miscdev.name = "lightsensor";
\r
1050 sensor->miscdev.fops = &sensor->fops;
\r
1054 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));
\r
1059 case SENSOR_TYPE_PROXIMITY:
\r
1060 if(!sensor->ops->misc_dev)
\r
1062 sensor->fops.owner = THIS_MODULE;
\r
1063 sensor->fops.unlocked_ioctl = proximity_dev_ioctl;
\r
1064 sensor->fops.open = proximity_dev_open;
\r
1065 sensor->fops.release = proximity_dev_release;
\r
1067 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;
\r
1068 sensor->miscdev.name = "psensor";
\r
1069 sensor->miscdev.fops = &sensor->fops;
\r
1073 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));
\r
1078 case SENSOR_TYPE_TEMPERATURE:
\r
1079 if(!sensor->ops->misc_dev)
\r
1081 sensor->fops.owner = THIS_MODULE;
\r
1082 sensor->fops.unlocked_ioctl = temperature_dev_ioctl;
\r
1083 sensor->fops.open = temperature_dev_open;
\r
1084 sensor->fops.release = temperature_dev_release;
\r
1086 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;
\r
1087 sensor->miscdev.name = "temperature";
\r
1088 sensor->miscdev.fops = &sensor->fops;
\r
1092 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));
\r
1099 printk("%s:unknow sensor type=%d\n",__func__,type);
\r
1104 sensor->miscdev.parent = &sensor->client->dev;
\r
1105 result = misc_register(&sensor->miscdev);
\r
1107 dev_err(&sensor->client->dev,
\r
1108 "fail to register misc device %s\n", sensor->miscdev.name);
\r
1112 printk("%s:miscdevice: %s\n",__func__,sensor->miscdev.name);
\r
1120 int sensor_register_slave(int type,struct i2c_client *client,
\r
1121 struct sensor_platform_data *slave_pdata,
\r
1122 struct sensor_operate *(*get_sensor_ops)(void))
\r
1125 struct sensor_operate *ops = get_sensor_ops();
\r
1126 if((ops->id_i2c >= SENSOR_NUM_ID) || (ops->id_i2c <= ID_INVALID))
\r
1128 printk("%s:%s id is error %d\n", __func__, ops->name, ops->id_i2c);
\r
1131 sensor_ops[ops->id_i2c] = ops;
\r
1132 printk("%s:%s,id=%d\n",__func__,sensor_ops[ops->id_i2c]->name, ops->id_i2c);
\r
1137 int sensor_unregister_slave(int type,struct i2c_client *client,
\r
1138 struct sensor_platform_data *slave_pdata,
\r
1139 struct sensor_operate *(*get_sensor_ops)(void))
\r
1142 struct sensor_operate *ops = get_sensor_ops();
\r
1143 if((ops->id_i2c >= SENSOR_NUM_ID) || (ops->id_i2c <= ID_INVALID))
\r
1145 printk("%s:%s id is error %d\n", __func__, ops->name, ops->id_i2c);
\r
1148 printk("%s:%s,id=%d\n",__func__,sensor_ops[ops->id_i2c]->name, ops->id_i2c);
\r
1149 sensor_ops[ops->id_i2c] = NULL;
\r
1154 int sensor_probe(struct i2c_client *client, const struct i2c_device_id *devid)
\r
1156 struct sensor_private_data *sensor =
\r
1157 (struct sensor_private_data *) i2c_get_clientdata(client);
\r
1158 struct sensor_platform_data *pdata;
\r
1161 dev_info(&client->adapter->dev, "%s: %s,0x%x\n", __func__, devid->name,(unsigned int)client);
\r
1163 if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
\r
1168 pdata = client->dev.platform_data;
\r
1170 dev_err(&client->adapter->dev,
\r
1171 "Missing platform data for slave %s\n", devid->name);
\r
1176 sensor = kzalloc(sizeof(*sensor), GFP_KERNEL);
\r
1182 type= pdata->type;
\r
1184 if((type >= SENSOR_NUM_TYPES) || (type <= SENSOR_TYPE_NULL))
\r
1186 dev_err(&client->adapter->dev, "sensor type is error %d\n", pdata->type);
\r
1188 goto out_no_free;
\r
1191 if(((int)devid->driver_data >= SENSOR_NUM_ID) || ((int)devid->driver_data <= ID_INVALID))
\r
1193 dev_err(&client->adapter->dev, "sensor id is error %d\n", (int)devid->driver_data);
\r
1195 goto out_no_free;
\r
1198 i2c_set_clientdata(client, sensor);
\r
1199 sensor->client = client;
\r
1200 sensor->pdata = pdata;
\r
1201 sensor->type = type;
\r
1202 sensor->i2c_id = (struct i2c_device_id *)devid;
\r
1204 if (pdata->init_platform_hw) {
\r
1205 result = pdata->init_platform_hw();
\r
1207 goto out_free_memory;
\r
1210 memset(&(sensor->axis), 0, sizeof(struct sensor_axis) );
\r
1211 atomic_set(&(sensor->data_ready), 0);
\r
1212 init_waitqueue_head(&(sensor->data_ready_wq));
\r
1213 mutex_init(&sensor->data_mutex);
\r
1214 mutex_init(&sensor->operation_mutex);
\r
1215 mutex_init(&sensor->sensor_mutex);
\r
1216 mutex_init(&sensor->i2c_mutex);
\r
1218 sensor->status_cur = SENSOR_OFF;
\r
1219 sensor->axis.x = 0;
\r
1220 sensor->axis.y = 0;
\r
1221 sensor->axis.z = 0;
\r
1223 result = sensor_chip_init(sensor->client);
\r
1225 goto out_free_memory;
\r
1227 sensor->input_dev = input_allocate_device();
\r
1228 if (!sensor->input_dev) {
\r
1230 dev_err(&client->dev,
\r
1231 "Failed to allocate input device %s\n", sensor->input_dev->name);
\r
1232 goto out_free_memory;
\r
1237 case SENSOR_TYPE_ACCEL:
\r
1238 sensor->input_dev->name = "gsensor";
\r
1239 set_bit(EV_ABS, sensor->input_dev->evbit);
\r
1240 /* x-axis acceleration */
\r
1241 input_set_abs_params(sensor->input_dev, ABS_X, sensor->ops->range[0], sensor->ops->range[1], 0, 0); //2g full scale range
\r
1242 /* y-axis acceleration */
\r
1243 input_set_abs_params(sensor->input_dev, ABS_Y, sensor->ops->range[0], sensor->ops->range[1], 0, 0); //2g full scale range
\r
1244 /* z-axis acceleration */
\r
1245 input_set_abs_params(sensor->input_dev, ABS_Z, sensor->ops->range[0], sensor->ops->range[1], 0, 0); //2g full scale range
\r
1247 case SENSOR_TYPE_COMPASS:
\r
1248 sensor->input_dev->name = "compass";
\r
1249 /* Setup input device */
\r
1250 set_bit(EV_ABS, sensor->input_dev->evbit);
\r
1251 /* yaw (0, 360) */
\r
1252 input_set_abs_params(sensor->input_dev, ABS_RX, 0, 23040, 0, 0);
\r
1253 /* pitch (-180, 180) */
\r
1254 input_set_abs_params(sensor->input_dev, ABS_RY, -11520, 11520, 0, 0);
\r
1255 /* roll (-90, 90) */
\r
1256 input_set_abs_params(sensor->input_dev, ABS_RZ, -5760, 5760, 0, 0);
\r
1257 /* x-axis acceleration (720 x 8G) */
\r
1258 input_set_abs_params(sensor->input_dev, ABS_X, -5760, 5760, 0, 0);
\r
1259 /* y-axis acceleration (720 x 8G) */
\r
1260 input_set_abs_params(sensor->input_dev, ABS_Y, -5760, 5760, 0, 0);
\r
1261 /* z-axis acceleration (720 x 8G) */
\r
1262 input_set_abs_params(sensor->input_dev, ABS_Z, -5760, 5760, 0, 0);
\r
1263 /* status of magnetic sensor */
\r
1264 input_set_abs_params(sensor->input_dev, ABS_RUDDER, -32768, 3, 0, 0);
\r
1265 /* status of acceleration sensor */
\r
1266 input_set_abs_params(sensor->input_dev, ABS_WHEEL, -32768, 3, 0, 0);
\r
1267 /* x-axis of raw magnetic vector (-4096, 4095) */
\r
1268 input_set_abs_params(sensor->input_dev, ABS_HAT0X, -20480, 20479, 0, 0);
\r
1269 /* y-axis of raw magnetic vector (-4096, 4095) */
\r
1270 input_set_abs_params(sensor->input_dev, ABS_HAT0Y, -20480, 20479, 0, 0);
\r
1271 /* z-axis of raw magnetic vector (-4096, 4095) */
\r
1272 input_set_abs_params(sensor->input_dev, ABS_BRAKE, -20480, 20479, 0, 0);
\r
1274 case SENSOR_TYPE_GYROSCOPE:
\r
1275 sensor->input_dev->name = "gyro";
\r
1276 /* x-axis acceleration */
\r
1277 input_set_capability(sensor->input_dev, EV_REL, REL_RX);
\r
1278 input_set_abs_params(sensor->input_dev, ABS_RX, sensor->ops->range[0], sensor->ops->range[1], 0, 0);
\r
1279 /* y-axis acceleration */
\r
1280 input_set_capability(sensor->input_dev, EV_REL, REL_RY);
\r
1281 input_set_abs_params(sensor->input_dev, ABS_RY, sensor->ops->range[0], sensor->ops->range[1], 0, 0);
\r
1282 /* z-axis acceleration */
\r
1283 input_set_capability(sensor->input_dev, EV_REL, REL_RZ);
\r
1284 input_set_abs_params(sensor->input_dev, ABS_RZ, sensor->ops->range[0], sensor->ops->range[1], 0, 0);
\r
1286 case SENSOR_TYPE_LIGHT:
\r
1287 sensor->input_dev->name = "lightsensor-level";
\r
1288 set_bit(EV_ABS, sensor->input_dev->evbit);
\r
1289 input_set_abs_params(sensor->input_dev, ABS_MISC, sensor->ops->range[0], sensor->ops->range[1], 0, 0);
\r
1290 input_set_abs_params(sensor->input_dev, ABS_TOOL_WIDTH , sensor->ops->brightness[0],sensor->ops->brightness[1], 0, 0);
\r
1292 case SENSOR_TYPE_PROXIMITY:
\r
1293 sensor->input_dev->name = "proximity";
\r
1294 set_bit(EV_ABS, sensor->input_dev->evbit);
\r
1295 input_set_abs_params(sensor->input_dev, ABS_DISTANCE, sensor->ops->range[0], sensor->ops->range[1], 0, 0);
\r
1297 case SENSOR_TYPE_TEMPERATURE:
\r
1298 sensor->input_dev->name = "temperature";
\r
1299 set_bit(EV_ABS, sensor->input_dev->evbit);
\r
1300 input_set_abs_params(sensor->input_dev, ABS_THROTTLE, sensor->ops->range[0], sensor->ops->range[1], 0, 0);
\r
1303 printk("%s:unknow sensor type=%d\n",__func__,type);
\r
1307 sensor->input_dev->dev.parent = &client->dev;
\r
1309 result = input_register_device(sensor->input_dev);
\r
1311 dev_err(&client->dev,
\r
1312 "Unable to register input device %s\n", sensor->input_dev->name);
\r
1313 goto out_input_register_device_failed;
\r
1316 result = sensor_irq_init(sensor->client);
\r
1318 dev_err(&client->dev,
\r
1319 "fail to init sensor irq,ret=%d\n",result);
\r
1320 goto out_input_register_device_failed;
\r
1324 sensor->miscdev.parent = &client->dev;
\r
1325 result = sensor_misc_device_register(sensor, type);
\r
1327 dev_err(&client->dev,
\r
1328 "fail to register misc device %s\n", sensor->miscdev.name);
\r
1329 goto out_misc_device_register_device_failed;
\r
1332 g_sensor[type] = sensor;
\r
1334 if((type == SENSOR_TYPE_ACCEL) && (sensor->pdata->factory)) //only support setting gsensor orientation online now
\r
1336 result = gsensor_class_init();
\r
1338 dev_err(&client->dev,
\r
1339 "fail to register misc device %s\n", sensor->i2c_id->name);
\r
1340 goto out_misc_device_register_device_failed;
\r
1344 #ifdef CONFIG_HAS_EARLYSUSPEND
\r
1345 if((sensor->ops->suspend) && (sensor->ops->resume))
\r
1347 sensor->early_suspend.suspend = sensor_suspend;
\r
1348 sensor->early_suspend.resume = sensor_resume;
\r
1349 sensor->early_suspend.level = 0x02;
\r
1350 register_early_suspend(&sensor->early_suspend);
\r
1354 printk("%s:initialized ok,sensor name:%s,type:%d,id=%d\n\n",__func__,sensor->ops->name,type,(int)sensor->i2c_id->driver_data);
\r
1358 out_misc_device_register_device_failed:
\r
1359 input_unregister_device(sensor->input_dev);
\r
1360 out_input_register_device_failed:
\r
1361 input_free_device(sensor->input_dev);
\r
1365 dev_err(&client->adapter->dev, "%s failed %d\n", __func__, result);
\r
1370 static void sensor_shut_down(struct i2c_client *client)
\r
1372 #ifdef CONFIG_HAS_EARLYSUSPEND
\r
1373 struct sensor_private_data *sensor =
\r
1374 (struct sensor_private_data *) i2c_get_clientdata(client);
\r
1375 if((sensor->ops->suspend) && (sensor->ops->resume))
\r
1376 unregister_early_suspend(&sensor->early_suspend);
\r
1377 DBG("%s:%s\n",__func__,sensor->i2c_id->name);
\r
1381 static int sensor_remove(struct i2c_client *client)
\r
1383 struct sensor_private_data *sensor =
\r
1384 (struct sensor_private_data *) i2c_get_clientdata(client);
\r
1387 cancel_delayed_work_sync(&sensor->delaywork);
\r
1388 misc_deregister(&sensor->miscdev);
\r
1389 input_unregister_device(sensor->input_dev);
\r
1390 input_free_device(sensor->input_dev);
\r
1392 #ifdef CONFIG_HAS_EARLYSUSPEND
\r
1393 if((sensor->ops->suspend) && (sensor->ops->resume))
\r
1394 unregister_early_suspend(&sensor->early_suspend);
\r
1399 static const struct i2c_device_id sensor_id[] = {
\r
1401 {"gsensor", ACCEL_ID_ALL},
\r
1402 {"gs_mma8452", ACCEL_ID_MMA845X},
\r
1403 {"gs_kxtik", ACCEL_ID_KXTIK},
\r
1404 {"gs_lis3dh", ACCEL_ID_LIS3DH},
\r
1405 {"gs_mma7660", ACCEL_ID_MMA7660},
\r
1406 {"gs_mxc6225", ACCEL_ID_MXC6225},
\r
1408 {"compass", COMPASS_ID_ALL},
\r
1409 {"ak8975", COMPASS_ID_AK8975},
\r
1410 {"mmc314x", COMPASS_ID_MMC314X},
\r
1412 {"gyro", GYRO_ID_ALL},
\r
1413 {"l3g4200d_gryo", GYRO_ID_L3G4200D},
\r
1414 {"k3g", GYRO_ID_K3G},
\r
1416 {"lightsensor", LIGHT_ID_ALL},
\r
1417 {"light_cm3217", LIGHT_ID_CM3217},
\r
1418 {"light_cm3232", LIGHT_ID_CM3232},
\r
1419 {"light_al3006", LIGHT_ID_AL3006},
\r
1420 {"ls_stk3171", LIGHT_ID_STK3171},
\r
1421 {"ls_isl29023", LIGHT_ID_ISL29023},
\r
1422 {"ls_ap321xx", LIGHT_ID_AP321XX},
\r
1423 {"ls_photoresistor", LIGHT_ID_PHOTORESISTOR},
\r
1424 /*proximity sensor*/
\r
1425 {"psensor", PROXIMITY_ID_ALL},
\r
1426 {"proximity_al3006", PROXIMITY_ID_AL3006},
\r
1427 {"ps_stk3171", PROXIMITY_ID_STK3171},
\r
1428 {"ps_ap321xx", PROXIMITY_ID_AP321XX},
\r
1430 {"temperature", TEMPERATURE_ID_ALL},
\r
1435 static struct i2c_driver sensor_driver = {
\r
1436 .probe = sensor_probe,
\r
1437 .remove = sensor_remove,
\r
1438 .shutdown = sensor_shut_down,
\r
1439 .id_table = sensor_id,
\r
1441 .owner = THIS_MODULE,
\r
1442 .name = "sensors",
\r
1446 static int __init sensor_init(void)
\r
1448 int res = i2c_add_driver(&sensor_driver);
\r
1449 pr_info("%s: Probe name %s\n", __func__, sensor_driver.driver.name);
\r
1451 pr_err("%s failed\n", __func__);
\r
1453 printk("%s\n", SENSOR_VERSION_AND_TIME);
\r
1457 static void __exit sensor_exit(void)
\r
1459 pr_info("%s\n", __func__);
\r
1460 i2c_del_driver(&sensor_driver);
\r
1463 late_initcall(sensor_init);
\r
1464 module_exit(sensor_exit);
\r
1466 MODULE_AUTHOR("ROCKCHIP Corporation:lw@rock-chips.com");
\r
1467 MODULE_DESCRIPTION("User space character device interface for sensors");
\r
1468 MODULE_LICENSE("GPL");
\r