drivers/input/sensors/sensor-dev.c

   1 /* drivers/input/sensors/sensor-dev.c - handle all gsensor in this file\r
   2  *\r
   3  * Copyright (C) 2012-2015 ROCKCHIP.\r
   4  * Author: luowei <lw@rock-chips.com>\r
   5  *\r
   6  * This software is licensed under the terms of the GNU General Public\r
   7  * License version 2, as published by the Free Software Foundation, and\r
   8  * may be copied, distributed, and modified under those terms.\r
   9  *\r
  10  * This program is distributed in the hope that it will be useful,\r
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  13  * GNU General Public License for more details.\r
  14  *\r
  15  */\r
  16 \r
  17 #include <linux/interrupt.h>\r
  18 #include <linux/i2c.h>\r
  19 #include <linux/slab.h>\r
  20 #include <linux/irq.h>\r
  21 #include <linux/miscdevice.h>\r
  22 #include <linux/gpio.h>\r
  23 #include <asm/uaccess.h>\r
  24 #include <asm/atomic.h>\r
  25 #include <linux/delay.h>\r
  26 #include <linux/input.h>\r
  27 #include <linux/workqueue.h>\r
  28 #include <linux/freezer.h>\r
  29 #include <mach/gpio.h>\r
  30 #include <mach/board.h> \r
  31 #ifdef CONFIG_HAS_EARLYSUSPEND\r
  32 #include <linux/earlysuspend.h>\r
  33 #endif\r
  34 #include <linux/akm8975.h>\r
  35 #include <linux/l3g4200d.h>\r
  36 #include <linux/sensor-dev.h>\r
  37 \r
  38 \r
  39 #if 0\r
  40 #define SENSOR_DEBUG_TYPE SENSOR_TYPE_ACCEL\r
  41 #define DBG(x...) if(sensor->pdata->type == SENSOR_DEBUG_TYPE) printk(x)\r
  42 #else\r
  43 #define DBG(x...)\r
  44 #endif\r
  45 \r
  46 struct sensor_private_data *g_sensor[SENSOR_NUM_TYPES];\r
  47 static struct sensor_operate *sensor_ops[SENSOR_NUM_ID]; \r
  48 static struct class *g_sensor_class[SENSOR_NUM_TYPES];\r
  49 \r
  50 \r
  51 static int sensor_get_id(struct i2c_client *client, int *value)\r
  52 {\r
  53         struct sensor_private_data *sensor =\r
  54             (struct sensor_private_data *) i2c_get_clientdata(client);  \r
  55         int result = 0;\r
  56         char temp = sensor->ops->id_reg;\r
  57         int i = 0;\r
  58 \r
  59         if(sensor->ops->id_reg >= 0)\r
  60         {\r
  61                 for(i=0; i<3; i++)\r
  62                 {\r
  63                         result = sensor_rx_data(client, &temp, 1);\r
  64                         *value = temp;\r
  65                         if(!result)\r
  66                         break;\r
  67                 }\r
  68 \r
  69                 if(result)\r
  70                         return result;\r
  71 \r
  72                 if(*value != sensor->ops->id_data)\r
  73                 {\r
  74                         printk("%s:id=0x%x is not 0x%x\n",__func__,*value, sensor->ops->id_data);\r
  75                         result = -1;\r
  76                 }\r
  77                         \r
  78                 DBG("%s:devid=0x%x\n",__func__,*value);\r
  79         }\r
  80         \r
  81         return result;\r
  82 }\r
  83 \r
  84 static int sensor_initial(struct i2c_client *client)\r
  85 {\r
  86         struct sensor_private_data *sensor =\r
  87             (struct sensor_private_data *) i2c_get_clientdata(client);  \r
  88         int result = 0;\r
  89 \r
  90         //register setting according to chip datasheet  \r
  91         result = sensor->ops->init(client);\r
  92         if(result < 0)\r
  93         {\r
  94                 printk("%s:fail to init sensor\n",__func__);\r
  95                 return result;\r
  96         }\r
  97 \r
  98 \r
  99         DBG("%s:ctrl_data=0x%x\n",__func__,sensor->ops->ctrl_data);\r
 100         \r
 101         return result;\r
 102 \r
 103 }\r
 104 \r
 105 static int sensor_chip_init(struct i2c_client *client)\r
 106 {\r
 107         struct sensor_private_data *sensor =\r
 108             (struct sensor_private_data *) i2c_get_clientdata(client);  \r
 109         struct sensor_operate *ops = sensor_ops[(int)sensor->i2c_id->driver_data];\r
 110         int result = 0;\r
 111         \r
 112         if(ops)\r
 113         {\r
 114                 sensor->ops = ops;\r
 115         }\r
 116         else\r
 117         {\r
 118                 printk("%s:ops is null,sensor name is %s\n",__func__,sensor->i2c_id->name);\r
 119                 result = -1;\r
 120                 goto error;\r
 121         }\r
 122 \r
 123         if((sensor->type != ops->type) || ((int)sensor->i2c_id->driver_data != ops->id_i2c))\r
 124         {\r
 125                 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);\r
 126                 result = -1;\r
 127                 goto error;\r
 128         }\r
 129         \r
 130         if(!ops->init || !ops->active || !ops->report)\r
 131         {\r
 132                 printk("%s:error:some function is needed\n",__func__);          \r
 133                 result = -1;\r
 134                 goto error;\r
 135         }\r
 136 \r
 137         result = sensor_get_id(sensor->client, &sensor->devid);//get id\r
 138         if(result < 0)\r
 139         {       \r
 140                 printk("%s:fail to read %s devid:0x%x\n",__func__, sensor->i2c_id->name, sensor->devid);        \r
 141                 goto error;\r
 142         }\r
 143         \r
 144         printk("%s:%s:devid=0x%x,ops=0x%p\n",__func__, sensor->i2c_id->name, sensor->devid,sensor->ops);\r
 145 \r
 146         result = sensor_initial(sensor->client);        //init sensor\r
 147         if(result < 0)\r
 148         {       \r
 149                 printk("%s:fail to init sensor\n",__func__);            \r
 150                 goto error;\r
 151         }\r
 152 \r
 153         return 0;\r
 154 \r
 155 error:\r
 156         \r
 157         return result;\r
 158 }\r
 159 \r
 160 static int sensor_reset_rate(struct i2c_client *client, int rate)\r
 161 {\r
 162         struct sensor_private_data *sensor =\r
 163             (struct sensor_private_data *) i2c_get_clientdata(client);  \r
 164         int result = 0; \r
 165         \r
 166         result = sensor->ops->active(client,SENSOR_OFF,rate);\r
 167         sensor->ops->init(client);\r
 168         result = sensor->ops->active(client,SENSOR_ON,rate);\r
 169 \r
 170         return result;\r
 171 }\r
 172 \r
 173 static int sensor_get_data(struct i2c_client *client)\r
 174 {\r
 175         struct sensor_private_data *sensor =\r
 176             (struct sensor_private_data *) i2c_get_clientdata(client);  \r
 177         int result = 0;\r
 178         \r
 179         result = sensor->ops->report(client);\r
 180         if(result)\r
 181                 goto error;\r
 182 \r
 183         /* set data_ready */\r
 184         atomic_set(&sensor->data_ready, 1);\r
 185         /*wake up data_ready  work queue*/\r
 186         wake_up(&sensor->data_ready_wq);\r
 187         \r
 188 error:          \r
 189         return result;\r
 190 }\r
 191 \r
 192 #if 0\r
 193 int sensor_get_cached_data(struct i2c_client* client, char *buffer, int length, struct sensor_axis *axis)\r
 194 {\r
 195     struct sensor_private_data* sensor = (struct sensor_private_data *)i2c_get_clientdata(client);      \r
 196     wait_event_interruptible_timeout(sensor->data_ready_wq, \r
 197                                      atomic_read(&(sensor->data_ready) ),\r
 198                                      msecs_to_jiffies(1000) );\r
 199     if ( 0 == atomic_read(&(sensor->data_ready) ) ) {\r
 200         printk("waiting 'data_ready_wq' timed out.");\r
 201         goto error;\r
 202     }\r
 203 \r
 204         \r
 205         mutex_lock(&sensor->data_mutex);\r
 206 \r
 207         switch(sensor->type)\r
 208         {\r
 209                 case SENSOR_TYPE_ACCEL:\r
 210                 *axis = sensor->axis;\r
 211                 break;\r
 212 \r
 213                 case SENSOR_TYPE_COMPASS:\r
 214                 memcpy(buffer, sensor->sensor_data, length);\r
 215                 break;\r
 216         }\r
 217         \r
 218         mutex_unlock(&sensor->data_mutex);\r
 219         \r
 220     return 0;\r
 221         \r
 222 error:\r
 223         return -1;\r
 224 }\r
 225 #endif\r
 226 \r
 227 static void  sensor_delaywork_func(struct work_struct *work)\r
 228 {\r
 229         struct delayed_work *delaywork = container_of(work, struct delayed_work, work);\r
 230         struct sensor_private_data *sensor = container_of(delaywork, struct sensor_private_data, delaywork);\r
 231         struct i2c_client *client = sensor->client;\r
 232 \r
 233         mutex_lock(&sensor->sensor_mutex);      \r
 234         if (sensor_get_data(client) < 0) \r
 235                 DBG(KERN_ERR "%s: Get data failed\n",__func__);\r
 236         \r
 237         if(!sensor->pdata->irq_enable)//restart work while polling\r
 238         schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));\r
 239         //else\r
 240         //{\r
 241                 //if((sensor->ops->trig == IRQF_TRIGGER_LOW) || (sensor->ops->trig == IRQF_TRIGGER_HIGH))\r
 242                 //enable_irq(sensor->client->irq);\r
 243         //}\r
 244         mutex_unlock(&sensor->sensor_mutex);\r
 245         \r
 246         DBG("%s:%s\n",__func__,sensor->i2c_id->name);\r
 247 }\r
 248 \r
 249 /*\r
 250  * This is a threaded IRQ handler so can access I2C/SPI.  Since all\r
 251  * interrupts are clear on read the IRQ line will be reasserted and\r
 252  * the physical IRQ will be handled again if another interrupt is\r
 253  * asserted while we run - in the normal course of events this is a\r
 254  * rare occurrence so we save I2C/SPI reads.  We're also assuming that\r
 255  * it's rare to get lots of interrupts firing simultaneously so try to\r
 256  * minimise I/O.\r
 257  */\r
 258 static irqreturn_t sensor_interrupt(int irq, void *dev_id)\r
 259 {\r
 260         struct sensor_private_data *sensor = (struct sensor_private_data *)dev_id;\r
 261 \r
 262         //use threaded IRQ\r
 263         if (sensor_get_data(sensor->client) < 0) \r
 264                 DBG(KERN_ERR "%s: Get data failed\n",__func__);\r
 265         msleep(sensor->pdata->poll_delay_ms);\r
 266 \r
 267         \r
 268         //if((sensor->ops->trig == IRQF_TRIGGER_LOW) || (sensor->ops->trig == IRQF_TRIGGER_HIGH))\r
 269         //disable_irq_nosync(irq);\r
 270         //schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));\r
 271         DBG("%s:irq=%d\n",__func__,irq);\r
 272         return IRQ_HANDLED;\r
 273 }\r
 274 \r
 275 \r
 276 static int sensor_irq_init(struct i2c_client *client)\r
 277 {\r
 278         struct sensor_private_data *sensor =\r
 279             (struct sensor_private_data *) i2c_get_clientdata(client);  \r
 280         int result = 0;\r
 281         int irq;\r
 282         if((sensor->pdata->irq_enable)&&(sensor->ops->trig != SENSOR_UNKNOW_DATA))\r
 283         {\r
 284                 //INIT_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);\r
 285                 if(sensor->pdata->poll_delay_ms < 0)\r
 286                         sensor->pdata->poll_delay_ms = 30;\r
 287                 \r
 288                 result = gpio_request(client->irq, sensor->i2c_id->name);\r
 289                 if (result)\r
 290                 {\r
 291                         printk("%s:fail to request gpio :%d\n",__func__,client->irq);\r
 292                 }\r
 293         \r
 294                 gpio_pull_updown(client->irq, PullEnable);\r
 295                 irq = gpio_to_irq(client->irq);\r
 296                 //result = request_irq(irq, sensor_interrupt, sensor->ops->trig, sensor->ops->name, sensor);\r
 297                 result = request_threaded_irq(irq, NULL, sensor_interrupt, sensor->ops->trig, sensor->ops->name, sensor);\r
 298                 if (result) {\r
 299                         printk(KERN_ERR "%s:fail to request irq = %d, ret = 0x%x\n",__func__, irq, result);            \r
 300                         goto error;            \r
 301                 }\r
 302                 client->irq = irq;\r
 303                 if((sensor->pdata->type == SENSOR_TYPE_GYROSCOPE) || (sensor->pdata->type == SENSOR_TYPE_ACCEL))\r
 304                 disable_irq_nosync(client->irq);//disable irq\r
 305                 printk("%s:use irq=%d\n",__func__,irq);\r
 306         }\r
 307         else if(!sensor->pdata->irq_enable)\r
 308         {               \r
 309                 INIT_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);\r
 310                 if(sensor->pdata->poll_delay_ms < 0)\r
 311                         sensor->pdata->poll_delay_ms = 30;\r
 312                 \r
 313                 printk("%s:use polling,delay=%d ms\n",__func__,sensor->pdata->poll_delay_ms);\r
 314         }\r
 315 \r
 316 error:  \r
 317         return result;\r
 318 }\r
 319 \r
 320 #ifdef CONFIG_HAS_EARLYSUSPEND\r
 321 static void sensor_suspend(struct early_suspend *h)\r
 322 {\r
 323         struct sensor_private_data *sensor = \r
 324                         container_of(h, struct sensor_private_data, early_suspend);\r
 325         \r
 326         if(sensor->ops->suspend)\r
 327                 sensor->ops->suspend(sensor->client);\r
 328 \r
 329 }\r
 330 \r
 331 static void sensor_resume(struct early_suspend *h)\r
 332 {\r
 333         struct sensor_private_data *sensor = \r
 334                         container_of(h, struct sensor_private_data, early_suspend);\r
 335 \r
 336         if(sensor->ops->resume)\r
 337                 sensor->ops->resume(sensor->client);\r
 338 }\r
 339 #endif\r
 340 \r
 341 static int gsensor_dev_open(struct inode *inode, struct file *file)\r
 342 {\r
 343         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];     \r
 344         //struct i2c_client *client = sensor->client;\r
 345 \r
 346         int result = 0;\r
 347 \r
 348 \r
 349         return result;\r
 350 }\r
 351 \r
 352 \r
 353 static int gsensor_dev_release(struct inode *inode, struct file *file)\r
 354 {\r
 355         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];     \r
 356         //struct i2c_client *client = sensor->client;\r
 357 \r
 358         int result = 0;\r
 359 \r
 360 \r
 361         return result;\r
 362 }\r
 363 \r
 364 /* ioctl - I/O control */\r
 365 static long gsensor_dev_ioctl(struct file *file,\r
 366                           unsigned int cmd, unsigned long arg)\r
 367 {\r
 368         struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];\r
 369         struct i2c_client *client = sensor->client;\r
 370         void __user *argp = (void __user *)arg;\r
 371         struct sensor_axis axis = {0};\r
 372         char rate;\r
 373         int result = 0;\r
 374 \r
 375         switch (cmd) {\r
 376         case GSENSOR_IOCTL_APP_SET_RATE:\r
 377                 if (copy_from_user(&rate, argp, sizeof(rate)))\r
 378                 {\r
 379                         result = -EFAULT;\r
 380                         goto error;\r
 381                 }\r
 382                 break;\r
 383         default:\r
 384                 break;\r
 385         }\r
 386 \r
 387         switch (cmd) {\r
 388         case GSENSOR_IOCTL_START:       \r
 389                 DBG("%s:GSENSOR_IOCTL_START start,status=%d\n", __func__,sensor->status_cur);\r
 390                 mutex_lock(&sensor->operation_mutex);   \r
 391                 if(++sensor->start_count == 1)\r
 392                 {\r
 393                         if(sensor->status_cur == SENSOR_OFF)\r
 394                         {\r
 395                                 atomic_set(&(sensor->data_ready), 0);\r
 396                                 if ( (result = sensor->ops->active(client, 1, 0) ) < 0 ) {\r
 397                                         mutex_unlock(&sensor->operation_mutex);\r
 398                                         printk("%s:fail to active sensor,ret=%d\n",__func__,result);         \r
 399                                         goto error;           \r
 400                                 }                       \r
 401                                 if(sensor->pdata->irq_enable)\r
 402                                 {\r
 403                                         DBG("%s:enable irq,irq=%d\n",__func__,client->irq);\r
 404                                         enable_irq(client->irq);        //enable irq\r
 405                                 }       \r
 406                                 else\r
 407                                 {\r
 408                                         PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);\r
 409                                         schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));\r
 410                                 }\r
 411                                 sensor->status_cur = SENSOR_ON;\r
 412                         }       \r
 413                 }\r
 414                 mutex_unlock(&sensor->operation_mutex);\r
 415                 DBG("%s:GSENSOR_IOCTL_START OK\n", __func__);\r
 416                 break;\r
 417 \r
 418         case GSENSOR_IOCTL_CLOSE:                               \r
 419                 DBG("%s:GSENSOR_IOCTL_CLOSE start,status=%d\n", __func__,sensor->status_cur);\r
 420                 mutex_lock(&sensor->operation_mutex);           \r
 421                 if(--sensor->start_count == 0)\r
 422                 {\r
 423                         if(sensor->status_cur == SENSOR_ON)\r
 424                         {\r
 425                                 atomic_set(&(sensor->data_ready), 0);\r
 426                                 if ( (result = sensor->ops->active(client, 0, 0) ) < 0 ) {\r
 427                                         mutex_unlock(&sensor->operation_mutex);              \r
 428                                         goto error;\r
 429                                 }\r
 430                                 \r
 431                                 if(sensor->pdata->irq_enable)\r
 432                                 {                               \r
 433                                         DBG("%s:disable irq,irq=%d\n",__func__,client->irq);\r
 434                                         disable_irq_nosync(client->irq);//disable irq\r
 435                                 }\r
 436                                 else\r
 437                                 cancel_delayed_work_sync(&sensor->delaywork);           \r
 438                                 sensor->status_cur = SENSOR_OFF;\r
 439                         }\r
 440                         \r
 441                         DBG("%s:GSENSOR_IOCTL_CLOSE OK\n", __func__);\r
 442                 }\r
 443                 \r
 444                 mutex_unlock(&sensor->operation_mutex); \r
 445                 break;\r
 446 \r
 447         case GSENSOR_IOCTL_APP_SET_RATE:                \r
 448                 DBG("%s:GSENSOR_IOCTL_APP_SET_RATE start\n", __func__);         \r
 449                 mutex_lock(&sensor->operation_mutex);   \r
 450                 result = sensor_reset_rate(client, rate);\r
 451                 if (result < 0){\r
 452                         mutex_unlock(&sensor->operation_mutex);\r
 453                         goto error;\r
 454                 }\r
 455 \r
 456                 sensor->status_cur = SENSOR_ON;\r
 457                 mutex_unlock(&sensor->operation_mutex); \r
 458                 DBG("%s:GSENSOR_IOCTL_APP_SET_RATE OK\n", __func__);\r
 459                 break;\r
 460                 \r
 461         case GSENSOR_IOCTL_GETDATA:\r
 462                 mutex_lock(&sensor->data_mutex);\r
 463                 memcpy(&axis, &sensor->axis, sizeof(sensor->axis));     //get data from buffer\r
 464                 mutex_unlock(&sensor->data_mutex);              \r
 465                 break;\r
 466         default:\r
 467                 result = -ENOTTY;\r
 468         goto error;\r
 469         }\r
 470 \r
 471         switch (cmd) {\r
 472         case GSENSOR_IOCTL_GETDATA:\r
 473                 if ( copy_to_user(argp, &axis, sizeof(axis) ) ) {\r
 474                     printk("failed to copy sense data to user space.");\r
 475                                 result = -EFAULT;                       \r
 476                                 goto error;\r
 477                 }               \r
 478                 DBG("%s:GSENSOR_IOCTL_GETDATA OK\n", __func__);\r
 479                 break;\r
 480         default:\r
 481                 break;\r
 482         }\r
 483         \r
 484 error:\r
 485         return result;\r
 486 }\r
 487 \r
 488 static ssize_t gsensor_set_orientation_online(struct class *class,\r
 489                 struct class_attribute *attr, const char *buf, size_t count)\r
 490 {\r
 491         int i=0;\r
 492         char orientation[20];\r
 493         char *tmp;\r
 494         \r
 495         struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];\r
 496         struct sensor_platform_data *pdata = sensor->pdata;\r
 497 \r
 498         \r
 499         char *p = strstr(buf,"gsensor_class");\r
 500         int start = strcspn(p,"{");\r
 501         int end = strcspn(p,"}");\r
 502         \r
 503         strncpy(orientation,p+start,end-start+1);\r
 504         tmp = orientation;\r
 505         \r
 506 \r
 507         while(strncmp(tmp,"}",1)!=0)\r
 508          {\r
 509                 if((strncmp(tmp,",",1)==0)||(strncmp(tmp,"{",1)==0))\r
 510                 {\r
 511                         \r
 512                          tmp++;         \r
 513                          continue;\r
 514                 }       \r
 515                 else if(strncmp(tmp,"-",1)==0)\r
 516                 {\r
 517                         pdata->orientation[i++]=-1;\r
 518                         DBG("i=%d,data=%d\n",i,pdata->orientation[i]);\r
 519                          tmp++;\r
 520                 }               \r
 521                 else\r
 522                 {\r
 523                         pdata->orientation[i++]=tmp[0]-48;              \r
 524                         DBG("----i=%d,data=%d\n",i,pdata->orientation[i]);      \r
 525                 }       \r
 526                 tmp++;\r
 527         \r
 528                                                 \r
 529          }\r
 530 \r
 531         for(i=0;i<9;i++)\r
 532                 DBG("i=%d gsensor_info=%d\n",i,pdata->orientation[i]);\r
 533         return 0;\r
 534 \r
 535 }\r
 536 \r
 537 static CLASS_ATTR(orientation, 0660, NULL, gsensor_set_orientation_online);\r
 538 \r
 539 static int  gsensor_class_init(void)\r
 540 {\r
 541         int ret ;\r
 542         struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_ACCEL];       \r
 543         g_sensor_class[SENSOR_TYPE_ACCEL] = class_create(THIS_MODULE, "gsensor_class");\r
 544         ret =  class_create_file(g_sensor_class[SENSOR_TYPE_ACCEL], &class_attr_orientation);\r
 545         if (ret)\r
 546         {\r
 547                 printk("%s:Fail to creat class\n",__func__);\r
 548                 return ret;\r
 549         }\r
 550         printk("%s:%s\n",__func__,sensor->i2c_id->name);\r
 551         return 0;\r
 552 }\r
 553 \r
 554 \r
 555 \r
 556 static int compass_dev_open(struct inode *inode, struct file *file)\r
 557 {\r
 558         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_COMPASS];\r
 559         //struct i2c_client *client = sensor->client;\r
 560         int result = 0;\r
 561         \r
 562         //to do\r
 563         return result;\r
 564 }\r
 565 \r
 566 \r
 567 static int compass_dev_release(struct inode *inode, struct file *file)\r
 568 {\r
 569         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_COMPASS];\r
 570         //struct i2c_client *client = sensor->client;   \r
 571         int result = 0;\r
 572 \r
 573         //to do\r
 574         return result;\r
 575 }\r
 576 \r
 577 \r
 578 /* ioctl - I/O control */\r
 579 static long compass_dev_ioctl(struct file *file,\r
 580                           unsigned int cmd, unsigned long arg)\r
 581 {\r
 582         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_COMPASS];\r
 583         //struct i2c_client *client = sensor->client;\r
 584         //void __user *argp = (void __user *)arg;\r
 585         int result = 0;\r
 586         \r
 587         //to do\r
 588         return result;\r
 589 }\r
 590 \r
 591 static int gyro_dev_open(struct inode *inode, struct file *file)\r
 592 {\r
 593         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_GYROSCOPE];\r
 594         //struct i2c_client *client = sensor->client;\r
 595 \r
 596         int result = 0;\r
 597 \r
 598 \r
 599         return result;\r
 600 }\r
 601 \r
 602 \r
 603 static int gyro_dev_release(struct inode *inode, struct file *file)\r
 604 {\r
 605         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_GYROSCOPE];\r
 606         //struct i2c_client *client = sensor->client;\r
 607 \r
 608         int result = 0;\r
 609 \r
 610 \r
 611         return result;\r
 612 }\r
 613 \r
 614 \r
 615 /* ioctl - I/O control */\r
 616 static long gyro_dev_ioctl(struct file *file,\r
 617                           unsigned int cmd, unsigned long arg)\r
 618 {\r
 619         struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_GYROSCOPE];   \r
 620         struct i2c_client *client = sensor->client;     \r
 621         void __user *argp = (void __user *)arg;\r
 622         int result = 0;\r
 623         char rate;\r
 624         switch (cmd) {\r
 625         case L3G4200D_IOCTL_GET_ENABLE: \r
 626                 result = !sensor->status_cur;\r
 627                 if (copy_to_user(argp, &result, sizeof(result)))\r
 628                 {\r
 629                         printk("%s:failed to copy status to user space.\n",__FUNCTION__);\r
 630                         return -EFAULT;\r
 631                 }\r
 632                 \r
 633                 DBG("%s :L3G4200D_IOCTL_GET_ENABLE,status=%d\n",__FUNCTION__,result);   \r
 634                 break;\r
 635         case L3G4200D_IOCTL_SET_ENABLE:                 \r
 636                 DBG("%s :L3G4200D_IOCTL_SET_ENABLE,flag=%d\n",__FUNCTION__,*(unsigned int *)argp);\r
 637                 mutex_lock(&sensor->operation_mutex);   \r
 638                 if(*(unsigned int *)argp)\r
 639                 {\r
 640                         if(sensor->status_cur == SENSOR_OFF)\r
 641                         {\r
 642                                 if ( (result = sensor->ops->active(client, 1, ODR100_BW12_5) ) < 0 ) {\r
 643                                 mutex_unlock(&sensor->operation_mutex);\r
 644                                 printk("%s:fail to active sensor,ret=%d\n",__func__,result);         \r
 645                                 goto error;           \r
 646                                 }                       \r
 647                                 if(sensor->pdata->irq_enable)\r
 648                                 {\r
 649                                         DBG("%s:enable irq,irq=%d\n",__func__,client->irq);\r
 650                                         enable_irq(client->irq);        //enable irq\r
 651                                 }       \r
 652                                 else\r
 653                                 {\r
 654                                         PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);\r
 655                                         schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));\r
 656                                 }\r
 657                                 sensor->status_cur = SENSOR_ON;\r
 658                         }       \r
 659                 }\r
 660                 else\r
 661                 {\r
 662                         if(sensor->status_cur == SENSOR_ON)\r
 663                         {\r
 664                                 if ( (result = sensor->ops->active(client, 0, 0) ) < 0 ) {\r
 665                                 mutex_unlock(&sensor->operation_mutex);              \r
 666                                 goto error;\r
 667                                 }\r
 668                                 \r
 669                                 if(sensor->pdata->irq_enable)\r
 670                                 {                               \r
 671                                         DBG("%s:disable irq,irq=%d\n",__func__,client->irq);\r
 672                                         disable_irq_nosync(client->irq);//disable irq\r
 673                                 }\r
 674                                 else\r
 675                                 cancel_delayed_work_sync(&sensor->delaywork);           \r
 676                                 sensor->status_cur = SENSOR_OFF;\r
 677                         }\r
 678                 }\r
 679         \r
 680                 result = sensor->status_cur;\r
 681                 if (copy_to_user(argp, &result, sizeof(result)))\r
 682                 {\r
 683                         printk("%s:failed to copy sense data to user space.\n",__FUNCTION__);\r
 684                         return -EFAULT;\r
 685                 }\r
 686 \r
 687                 mutex_unlock(&sensor->operation_mutex);\r
 688                 DBG("%s:L3G4200D_IOCTL_SET_ENABLE OK\n", __func__);\r
 689                 break;\r
 690         case L3G4200D_IOCTL_SET_DELAY:                                  \r
 691                 mutex_lock(&sensor->operation_mutex);\r
 692                 if (copy_from_user(&rate, argp, sizeof(rate)))\r
 693                 return -EFAULT;\r
 694                 if(sensor->status_cur == SENSOR_OFF)\r
 695                 {\r
 696                         if ( (result = sensor->ops->active(client, 1, rate) ) < 0 ) {\r
 697                         mutex_unlock(&sensor->operation_mutex);\r
 698                         printk("%s:fail to active sensor,ret=%d\n",__func__,result);         \r
 699                         goto error;           \r
 700                         }\r
 701                         \r
 702                         if(sensor->pdata->irq_enable)\r
 703                         {\r
 704                                 DBG("%s:enable irq,irq=%d\n",__func__,client->irq);\r
 705                                 enable_irq(client->irq);        //enable irq\r
 706                         }       \r
 707                         else\r
 708                         {\r
 709                                 PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);\r
 710                                 schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));\r
 711                         }\r
 712                         sensor->status_cur = SENSOR_ON;\r
 713                 }       \r
 714                 \r
 715                 mutex_unlock(&sensor->operation_mutex);\r
 716                 DBG("%s :L3G4200D_IOCTL_SET_DELAY,rate=%d\n",__FUNCTION__,rate);\r
 717                 break;\r
 718 \r
 719         default:\r
 720                 printk("%s:error,cmd=0x%x\n",__func__,cmd);\r
 721                 return -ENOTTY;\r
 722         }\r
 723         \r
 724         DBG("%s:line=%d,cmd=0x%x\n",__func__,__LINE__,cmd);\r
 725 \r
 726 error:\r
 727         return result;\r
 728 }\r
 729 \r
 730 static int light_dev_open(struct inode *inode, struct file *file)\r
 731 {\r
 732         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_LIGHT];\r
 733         //struct i2c_client *client = sensor->client;   \r
 734         int result = 0; \r
 735 \r
 736 \r
 737         return result;\r
 738 }\r
 739 \r
 740 \r
 741 \r
 742 \r
 743 static int light_dev_release(struct inode *inode, struct file *file)\r
 744 {\r
 745         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_LIGHT];\r
 746         //struct i2c_client *client = sensor->client;   \r
 747         int result = 0;\r
 748 \r
 749 \r
 750         return result;\r
 751 }\r
 752 \r
 753 \r
 754 /* ioctl - I/O control */\r
 755 static long light_dev_ioctl(struct file *file,\r
 756                           unsigned int cmd, unsigned long arg)\r
 757 {\r
 758         struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_LIGHT];\r
 759         struct i2c_client *client = sensor->client;\r
 760         unsigned int *argp = (unsigned int *)arg;       \r
 761         int result = 0;\r
 762 \r
 763         switch(cmd)\r
 764         {\r
 765                 case LIGHTSENSOR_IOCTL_GET_ENABLED:\r
 766                         *argp = sensor->status_cur;\r
 767                         break;\r
 768                 case LIGHTSENSOR_IOCTL_ENABLE:          \r
 769                         DBG("%s:LIGHTSENSOR_IOCTL_ENABLE start\n", __func__);\r
 770                         mutex_lock(&sensor->operation_mutex);    \r
 771                         if(*(unsigned int *)argp)\r
 772                         {\r
 773                                 if(sensor->status_cur == SENSOR_OFF)\r
 774                                 {\r
 775                                         if ( (result = sensor->ops->active(client, SENSOR_ON, 0) ) < 0 ) {\r
 776                                         mutex_unlock(&sensor->operation_mutex);\r
 777                                         printk("%s:fail to active sensor,ret=%d\n",__func__,result);         \r
 778                                         goto error;           \r
 779                                         }       \r
 780                                         \r
 781                                         if(!sensor->pdata->irq_enable)\r
 782                                         {\r
 783                                                 PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);\r
 784                                                 schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));\r
 785                                         }\r
 786                                         sensor->status_cur = SENSOR_ON;\r
 787                                 }       \r
 788                         }\r
 789                         else\r
 790                         {\r
 791                                 if(sensor->status_cur == SENSOR_ON)\r
 792                                 {\r
 793                                         if ( (result = sensor->ops->active(client, SENSOR_OFF, 0) ) < 0 ) {\r
 794                                         mutex_unlock(&sensor->operation_mutex);              \r
 795                                         goto error;\r
 796                                         }\r
 797                                         \r
 798                                         if(!sensor->pdata->irq_enable)\r
 799                                         cancel_delayed_work_sync(&sensor->delaywork);           \r
 800                                         sensor->status_cur = SENSOR_OFF;\r
 801                                 }\r
 802                         }\r
 803                         mutex_unlock(&sensor->operation_mutex);\r
 804                         DBG("%s:LIGHTSENSOR_IOCTL_ENABLE OK\n", __func__);\r
 805                         break;\r
 806                 \r
 807                 default:\r
 808                         break;\r
 809         }\r
 810         \r
 811 error:\r
 812         return result;\r
 813 }\r
 814 \r
 815 \r
 816 static int proximity_dev_open(struct inode *inode, struct file *file)\r
 817 {\r
 818         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_PROXIMITY];\r
 819         //struct i2c_client *client = sensor->client;   \r
 820         int result = 0;\r
 821 \r
 822 \r
 823         return result;\r
 824 }\r
 825 \r
 826 \r
 827 static int proximity_dev_release(struct inode *inode, struct file *file)\r
 828 {\r
 829         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_PROXIMITY];\r
 830         //struct i2c_client *client = sensor->client;   \r
 831         int result = 0;\r
 832 \r
 833 \r
 834         return result;\r
 835 }\r
 836 \r
 837 \r
 838 /* ioctl - I/O control */\r
 839 static long proximity_dev_ioctl(struct file *file,\r
 840                           unsigned int cmd, unsigned long arg)\r
 841 {\r
 842         struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_PROXIMITY];\r
 843         struct i2c_client *client = sensor->client;     \r
 844         unsigned int *argp = (unsigned int *)arg;       \r
 845         int result = 0;\r
 846         switch(cmd)\r
 847         {\r
 848                 case PSENSOR_IOCTL_GET_ENABLED:\r
 849                         *argp = sensor->status_cur;\r
 850                         break;\r
 851                 case PSENSOR_IOCTL_ENABLE:              \r
 852                         DBG("%s:PSENSOR_IOCTL_ENABLE start\n", __func__);\r
 853                         mutex_lock(&sensor->operation_mutex);    \r
 854                         if(*(unsigned int *)argp)\r
 855                         {\r
 856                                 if(sensor->status_cur == SENSOR_OFF)\r
 857                                 {\r
 858                                         if ( (result = sensor->ops->active(client, SENSOR_ON, 0) ) < 0 ) {\r
 859                                         mutex_unlock(&sensor->operation_mutex);\r
 860                                         printk("%s:fail to active sensor,ret=%d\n",__func__,result);         \r
 861                                         goto error;           \r
 862                                         }\r
 863                                         \r
 864                                         if(!sensor->pdata->irq_enable)\r
 865                                         {\r
 866                                                 PREPARE_DELAYED_WORK(&sensor->delaywork, sensor_delaywork_func);\r
 867                                                 schedule_delayed_work(&sensor->delaywork, msecs_to_jiffies(sensor->pdata->poll_delay_ms));\r
 868                                         }\r
 869                                         sensor->status_cur = SENSOR_ON;\r
 870                                 }       \r
 871                         }\r
 872                         else\r
 873                         {\r
 874                                 if(sensor->status_cur == SENSOR_ON)\r
 875                                 {\r
 876                                         if ( (result = sensor->ops->active(client, SENSOR_OFF, 0) ) < 0 ) {\r
 877                                         mutex_unlock(&sensor->operation_mutex);              \r
 878                                         goto error;\r
 879                                         }\r
 880                                         if(!sensor->pdata->irq_enable)\r
 881                                         cancel_delayed_work_sync(&sensor->delaywork);           \r
 882                                         sensor->status_cur = SENSOR_OFF;\r
 883                                 }\r
 884                         }\r
 885                         mutex_unlock(&sensor->operation_mutex);\r
 886                         DBG("%s:PSENSOR_IOCTL_ENABLE OK\n", __func__);\r
 887                         break;\r
 888                 \r
 889                 default:\r
 890                         break;\r
 891         }\r
 892         \r
 893 error:\r
 894         return result;\r
 895 }\r
 896 \r
 897 static int temperature_dev_open(struct inode *inode, struct file *file)\r
 898 {\r
 899         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_TEMPERATURE];\r
 900         //struct i2c_client *client = sensor->client;\r
 901 \r
 902         int result = 0;\r
 903 \r
 904 \r
 905         return result;\r
 906 }\r
 907 \r
 908 \r
 909 static int temperature_dev_release(struct inode *inode, struct file *file)\r
 910 {\r
 911         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_TEMPERATURE];\r
 912         //struct i2c_client *client = sensor->client;\r
 913 \r
 914         int result = 0;\r
 915 \r
 916 \r
 917         return result;\r
 918 }\r
 919 \r
 920 \r
 921 /* ioctl - I/O control */\r
 922 static long temperature_dev_ioctl(struct file *file,\r
 923                           unsigned int cmd, unsigned long arg)\r
 924 {\r
 925         //struct sensor_private_data *sensor = g_sensor[SENSOR_TYPE_TEMPERATURE];\r
 926         //struct i2c_client *client = sensor->client;\r
 927         //void __user *argp = (void __user *)arg;\r
 928         int result = 0;\r
 929         \r
 930 \r
 931         return result;\r
 932 }\r
 933 \r
 934 \r
 935 static int sensor_misc_device_register(struct sensor_private_data *sensor, int type)\r
 936 {\r
 937         int result = 0;\r
 938         \r
 939         switch(type)\r
 940         {\r
 941                 case SENSOR_TYPE_ACCEL:\r
 942                         if(!sensor->ops->misc_dev)\r
 943                         {\r
 944                                 sensor->fops.owner = THIS_MODULE;\r
 945                                 sensor->fops.unlocked_ioctl = gsensor_dev_ioctl;\r
 946                                 sensor->fops.open = gsensor_dev_open;\r
 947                                 sensor->fops.release = gsensor_dev_release;\r
 948 \r
 949                                 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;\r
 950                                 sensor->miscdev.name = "mma8452_daemon";\r
 951                                 sensor->miscdev.fops = &sensor->fops;\r
 952                         }\r
 953                         else\r
 954                         {\r
 955                                 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));\r
 956 \r
 957                         }\r
 958                                 \r
 959                         break;\r
 960 \r
 961                 case SENSOR_TYPE_COMPASS:                       \r
 962                         if(!sensor->ops->misc_dev)\r
 963                         {\r
 964                                 sensor->fops.owner = THIS_MODULE;\r
 965                                 sensor->fops.unlocked_ioctl = compass_dev_ioctl;\r
 966                                 sensor->fops.open = compass_dev_open;\r
 967                                 sensor->fops.release = compass_dev_release;\r
 968 \r
 969                                 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;\r
 970                                 sensor->miscdev.name = "compass";\r
 971                                 sensor->miscdev.fops = &sensor->fops;\r
 972                         }\r
 973                         else\r
 974                         {\r
 975                                 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));\r
 976 \r
 977                         }\r
 978 \r
 979                         break;\r
 980 \r
 981                 case SENSOR_TYPE_GYROSCOPE:                     \r
 982                         if(!sensor->ops->misc_dev)\r
 983                         {\r
 984                                 sensor->fops.owner = THIS_MODULE;\r
 985                                 sensor->fops.unlocked_ioctl = gyro_dev_ioctl;\r
 986                                 sensor->fops.open = gyro_dev_open;\r
 987                                 sensor->fops.release = gyro_dev_release;\r
 988 \r
 989                                 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;\r
 990                                 sensor->miscdev.name = "gyrosensor";\r
 991                                 sensor->miscdev.fops = &sensor->fops;\r
 992                         }\r
 993                         else\r
 994                         {\r
 995                                 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));\r
 996 \r
 997                         }\r
 998                         \r
 999                         break;\r
1000 \r
1001                 case SENSOR_TYPE_LIGHT:\r
1002                         if(!sensor->ops->misc_dev)\r
1003                         {\r
1004                                 sensor->fops.owner = THIS_MODULE;\r
1005                                 sensor->fops.unlocked_ioctl = light_dev_ioctl;\r
1006                                 sensor->fops.open = light_dev_open;\r
1007                                 sensor->fops.release = light_dev_release;\r
1008 \r
1009                                 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;\r
1010                                 sensor->miscdev.name = "lightsensor";\r
1011                                 sensor->miscdev.fops = &sensor->fops;\r
1012                         }       \r
1013                         else\r
1014                         {\r
1015                                 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));\r
1016 \r
1017                         }\r
1018                         break;\r
1019                 \r
1020                 case SENSOR_TYPE_PROXIMITY:\r
1021                         if(!sensor->ops->misc_dev)\r
1022                         {\r
1023                                 sensor->fops.owner = THIS_MODULE;\r
1024                                 sensor->fops.unlocked_ioctl = proximity_dev_ioctl;\r
1025                                 sensor->fops.open = proximity_dev_open;\r
1026                                 sensor->fops.release = proximity_dev_release;\r
1027 \r
1028                                 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;\r
1029                                 sensor->miscdev.name = "psensor";\r
1030                                 sensor->miscdev.fops = &sensor->fops;\r
1031                         }       \r
1032                         else\r
1033                         {\r
1034                                 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));\r
1035 \r
1036                         }\r
1037                         break;\r
1038 \r
1039                 case SENSOR_TYPE_TEMPERATURE:\r
1040                         if(!sensor->ops->misc_dev)\r
1041                         {\r
1042                                 sensor->fops.owner = THIS_MODULE;\r
1043                                 sensor->fops.unlocked_ioctl = temperature_dev_ioctl;\r
1044                                 sensor->fops.open = temperature_dev_open;\r
1045                                 sensor->fops.release = temperature_dev_release;\r
1046 \r
1047                                 sensor->miscdev.minor = MISC_DYNAMIC_MINOR;\r
1048                                 sensor->miscdev.name = "temperature";\r
1049                                 sensor->miscdev.fops = &sensor->fops;\r
1050                         }       \r
1051                         else\r
1052                         {\r
1053                                 memcpy(&sensor->miscdev, sensor->ops->misc_dev, sizeof(*sensor->ops->misc_dev));\r
1054 \r
1055                         }\r
1056                                 \r
1057                         break;\r
1058 \r
1059                 default:\r
1060                         printk("%s:unknow sensor type=%d\n",__func__,type);\r
1061                         result = -1;\r
1062                         goto error;\r
1063         }\r
1064                         \r
1065         sensor->miscdev.parent = &sensor->client->dev;\r
1066         result = misc_register(&sensor->miscdev);\r
1067         if (result < 0) {\r
1068                 dev_err(&sensor->client->dev,\r
1069                         "fail to register misc device %s\n", sensor->miscdev.name);\r
1070                 goto error;\r
1071         }\r
1072         \r
1073         printk("%s:miscdevice: %s\n",__func__,sensor->miscdev.name);\r
1074 \r
1075 error:  \r
1076         \r
1077         return result;\r
1078 \r
1079 }\r
1080 \r
1081 int sensor_register_slave(int type,struct i2c_client *client,\r
1082                         struct sensor_platform_data *slave_pdata,\r
1083                         struct sensor_operate *(*get_sensor_ops)(void))\r
1084 {\r
1085         int result = 0;\r
1086         struct sensor_operate *ops = get_sensor_ops();\r
1087         if((ops->id_i2c >= SENSOR_NUM_ID) || (ops->id_i2c <= ID_INVALID))\r
1088         {       \r
1089                 printk("%s:%s id is error %d\n", __func__, ops->name, ops->id_i2c);\r
1090                 return -1;      \r
1091         }\r
1092         sensor_ops[ops->id_i2c] = ops;\r
1093         printk("%s:%s,id=%d\n",__func__,sensor_ops[ops->id_i2c]->name, ops->id_i2c);\r
1094         return result;\r
1095 }\r
1096 \r
1097 \r
1098 int sensor_unregister_slave(int type,struct i2c_client *client,\r
1099                         struct sensor_platform_data *slave_pdata,\r
1100                         struct sensor_operate *(*get_sensor_ops)(void))\r
1101 {\r
1102         int result = 0;\r
1103         struct sensor_operate *ops = get_sensor_ops();\r
1104         if((ops->id_i2c >= SENSOR_NUM_ID) || (ops->id_i2c <= ID_INVALID))\r
1105         {       \r
1106                 printk("%s:%s id is error %d\n", __func__, ops->name, ops->id_i2c);\r
1107                 return -1;      \r
1108         }\r
1109         printk("%s:%s,id=%d\n",__func__,sensor_ops[ops->id_i2c]->name, ops->id_i2c);\r
1110         sensor_ops[ops->id_i2c] = NULL; \r
1111         return result;\r
1112 }\r
1113 \r
1114 \r
1115 int sensor_probe(struct i2c_client *client, const struct i2c_device_id *devid)\r
1116 {\r
1117         struct sensor_private_data *sensor =\r
1118             (struct sensor_private_data *) i2c_get_clientdata(client);\r
1119         struct sensor_platform_data *pdata;\r
1120         int result = 0;\r
1121         int type = 0;\r
1122         dev_info(&client->adapter->dev, "%s: %s,0x%x\n", __func__, devid->name,(unsigned int)client);\r
1123 \r
1124         if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {\r
1125                 result = -ENODEV;\r
1126                 goto out_no_free;\r
1127         }\r
1128 \r
1129         pdata = client->dev.platform_data;\r
1130         if (!pdata) {\r
1131                 dev_err(&client->adapter->dev,\r
1132                         "Missing platform data for slave %s\n", devid->name);\r
1133                 result = -EFAULT;\r
1134                 goto out_no_free;\r
1135         }\r
1136 \r
1137         sensor = kzalloc(sizeof(*sensor), GFP_KERNEL);\r
1138         if (!sensor) {\r
1139                 result = -ENOMEM;\r
1140                 goto out_no_free;\r
1141         }\r
1142 \r
1143         type= pdata->type;      \r
1144         \r
1145         if((type >= SENSOR_NUM_TYPES) || (type <= SENSOR_TYPE_NULL))\r
1146         {       \r
1147                 dev_err(&client->adapter->dev, "sensor type is error %d\n", pdata->type);\r
1148                 result = -EFAULT;\r
1149                 goto out_no_free;       \r
1150         }\r
1151 \r
1152         if(((int)devid->driver_data >= SENSOR_NUM_ID) || ((int)devid->driver_data <= ID_INVALID))\r
1153         {       \r
1154                 dev_err(&client->adapter->dev, "sensor id is error %d\n", (int)devid->driver_data);\r
1155                 result = -EFAULT;\r
1156                 goto out_no_free;       \r
1157         }\r
1158         \r
1159         i2c_set_clientdata(client, sensor);\r
1160         sensor->client = client;        \r
1161         sensor->pdata = pdata;  \r
1162         sensor->type = type;\r
1163         sensor->i2c_id = (struct i2c_device_id *)devid;\r
1164 \r
1165         if (pdata->init_platform_hw) {\r
1166                 result = pdata->init_platform_hw();\r
1167                 if (result < 0)\r
1168                         goto out_free_memory;\r
1169         }\r
1170 \r
1171         memset(&(sensor->axis), 0, sizeof(struct sensor_axis) );\r
1172         atomic_set(&(sensor->data_ready), 0);\r
1173         init_waitqueue_head(&(sensor->data_ready_wq));\r
1174         mutex_init(&sensor->data_mutex);        \r
1175         mutex_init(&sensor->operation_mutex);   \r
1176         mutex_init(&sensor->sensor_mutex);\r
1177         mutex_init(&sensor->i2c_mutex);\r
1178 \r
1179         sensor->status_cur = SENSOR_OFF;\r
1180         sensor->axis.x = 0;\r
1181         sensor->axis.y = 0;\r
1182         sensor->axis.z = 0;\r
1183         \r
1184         result = sensor_chip_init(sensor->client);\r
1185         if(result < 0)\r
1186                 goto out_free_memory;\r
1187         \r
1188         sensor->input_dev = input_allocate_device();\r
1189         if (!sensor->input_dev) {\r
1190                 result = -ENOMEM;\r
1191                 dev_err(&client->dev,\r
1192                         "Failed to allocate input device %s\n", sensor->input_dev->name);\r
1193                 goto out_free_memory;\r
1194         }       \r
1195 \r
1196         switch(type)\r
1197         {\r
1198                 case SENSOR_TYPE_ACCEL: \r
1199                         sensor->input_dev->name = "gsensor";\r
1200                         set_bit(EV_ABS, sensor->input_dev->evbit);\r
1201                         /* x-axis acceleration */\r
1202                         input_set_abs_params(sensor->input_dev, ABS_X, sensor->ops->range[0], sensor->ops->range[1], 0, 0); //2g full scale range\r
1203                         /* y-axis acceleration */\r
1204                         input_set_abs_params(sensor->input_dev, ABS_Y, sensor->ops->range[0], sensor->ops->range[1], 0, 0); //2g full scale range\r
1205                         /* z-axis acceleration */\r
1206                         input_set_abs_params(sensor->input_dev, ABS_Z, sensor->ops->range[0], sensor->ops->range[1], 0, 0); //2g full scale range\r
1207                         break;          \r
1208                 case SENSOR_TYPE_COMPASS:       \r
1209                         sensor->input_dev->name = "compass";            \r
1210                         /* Setup input device */\r
1211                         set_bit(EV_ABS, sensor->input_dev->evbit);\r
1212                         /* yaw (0, 360) */\r
1213                         input_set_abs_params(sensor->input_dev, ABS_RX, 0, 23040, 0, 0);\r
1214                         /* pitch (-180, 180) */\r
1215                         input_set_abs_params(sensor->input_dev, ABS_RY, -11520, 11520, 0, 0);\r
1216                         /* roll (-90, 90) */\r
1217                         input_set_abs_params(sensor->input_dev, ABS_RZ, -5760, 5760, 0, 0);\r
1218                         /* x-axis acceleration (720 x 8G) */\r
1219                         input_set_abs_params(sensor->input_dev, ABS_X, -5760, 5760, 0, 0);\r
1220                         /* y-axis acceleration (720 x 8G) */\r
1221                         input_set_abs_params(sensor->input_dev, ABS_Y, -5760, 5760, 0, 0);\r
1222                         /* z-axis acceleration (720 x 8G) */\r
1223                         input_set_abs_params(sensor->input_dev, ABS_Z, -5760, 5760, 0, 0);\r
1224                         /* status of magnetic sensor */\r
1225                         input_set_abs_params(sensor->input_dev, ABS_RUDDER, -32768, 3, 0, 0);\r
1226                         /* status of acceleration sensor */\r
1227                         input_set_abs_params(sensor->input_dev, ABS_WHEEL, -32768, 3, 0, 0);\r
1228                         /* x-axis of raw magnetic vector (-4096, 4095) */\r
1229                         input_set_abs_params(sensor->input_dev, ABS_HAT0X, -20480, 20479, 0, 0);\r
1230                         /* y-axis of raw magnetic vector (-4096, 4095) */\r
1231                         input_set_abs_params(sensor->input_dev, ABS_HAT0Y, -20480, 20479, 0, 0);\r
1232                         /* z-axis of raw magnetic vector (-4096, 4095) */\r
1233                         input_set_abs_params(sensor->input_dev, ABS_BRAKE, -20480, 20479, 0, 0);\r
1234                         break;          \r
1235                 case SENSOR_TYPE_GYROSCOPE:\r
1236                         sensor->input_dev->name = "gyro";\r
1237                         /* x-axis acceleration */\r
1238                         input_set_capability(sensor->input_dev, EV_REL, REL_RX);\r
1239                         input_set_abs_params(sensor->input_dev, ABS_RX, sensor->ops->range[0], sensor->ops->range[1], 0, 0); \r
1240                         /* y-axis acceleration */       \r
1241                         input_set_capability(sensor->input_dev, EV_REL, REL_RY);\r
1242                         input_set_abs_params(sensor->input_dev, ABS_RY, sensor->ops->range[0], sensor->ops->range[1], 0, 0); \r
1243                         /* z-axis acceleration */\r
1244                         input_set_capability(sensor->input_dev, EV_REL, REL_RZ);\r
1245                         input_set_abs_params(sensor->input_dev, ABS_RZ, sensor->ops->range[0], sensor->ops->range[1], 0, 0); \r
1246                         break;\r
1247                 case SENSOR_TYPE_LIGHT:\r
1248                         sensor->input_dev->name = "lightsensor-level";\r
1249                         set_bit(EV_ABS, sensor->input_dev->evbit);\r
1250                         input_set_abs_params(sensor->input_dev, ABS_MISC, sensor->ops->range[0], sensor->ops->range[1], 0, 0);                  \r
1251                         input_set_abs_params(sensor->input_dev, ABS_TOOL_WIDTH ,  sensor->ops->brightness[0],sensor->ops->brightness[1], 0, 0);\r
1252                         break;\r
1253                 case SENSOR_TYPE_PROXIMITY:\r
1254                         sensor->input_dev->name = "proximity";  \r
1255                         set_bit(EV_ABS, sensor->input_dev->evbit);\r
1256                         input_set_abs_params(sensor->input_dev, ABS_DISTANCE, sensor->ops->range[0], sensor->ops->range[1], 0, 0);\r
1257                         break;\r
1258                 case SENSOR_TYPE_TEMPERATURE:                           \r
1259                         sensor->input_dev->name = "temperature";\r
1260                         set_bit(EV_ABS, sensor->input_dev->evbit);              \r
1261                         input_set_abs_params(sensor->input_dev, ABS_THROTTLE, sensor->ops->range[0], sensor->ops->range[1], 0, 0);\r
1262                         break;\r
1263                 default:\r
1264                         printk("%s:unknow sensor type=%d\n",__func__,type);\r
1265                         break;\r
1266 \r
1267         }\r
1268         sensor->input_dev->dev.parent = &client->dev;\r
1269 \r
1270         result = input_register_device(sensor->input_dev);\r
1271         if (result) {\r
1272                 dev_err(&client->dev,\r
1273                         "Unable to register input device %s\n", sensor->input_dev->name);\r
1274                 goto out_input_register_device_failed;\r
1275         }\r
1276 \r
1277         result = sensor_irq_init(sensor->client);\r
1278         if (result) {\r
1279                 dev_err(&client->dev,\r
1280                         "fail to init sensor irq,ret=%d\n",result);\r
1281                 goto out_input_register_device_failed;\r
1282         }\r
1283 \r
1284         \r
1285         sensor->miscdev.parent = &client->dev;\r
1286         result = sensor_misc_device_register(sensor, type);\r
1287         if (result) {\r
1288                 dev_err(&client->dev,\r
1289                         "fail to register misc device %s\n", sensor->miscdev.name);\r
1290                 goto out_misc_device_register_device_failed;\r
1291         }\r
1292         \r
1293         g_sensor[type] = sensor;\r
1294 \r
1295         if((type == SENSOR_TYPE_ACCEL) && (sensor->pdata->factory))     //only support  setting gsensor orientation online now  \r
1296         {\r
1297                 result = gsensor_class_init();\r
1298                 if (result) {\r
1299                         dev_err(&client->dev,\r
1300                                 "fail to register misc device %s\n", sensor->i2c_id->name);\r
1301                         goto out_misc_device_register_device_failed;\r
1302                 }\r
1303         }\r
1304         \r
1305 #ifdef CONFIG_HAS_EARLYSUSPEND\r
1306         if((sensor->ops->suspend) && (sensor->ops->resume))\r
1307         {\r
1308                 sensor->early_suspend.suspend = sensor_suspend;\r
1309                 sensor->early_suspend.resume = sensor_resume;\r
1310                 sensor->early_suspend.level = 0x02;\r
1311                 register_early_suspend(&sensor->early_suspend);\r
1312         }\r
1313 #endif\r
1314 \r
1315         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
1316 \r
1317         return result;\r
1318         \r
1319 out_misc_device_register_device_failed:\r
1320         input_unregister_device(sensor->input_dev);     \r
1321 out_input_register_device_failed:\r
1322         input_free_device(sensor->input_dev);   \r
1323 out_free_memory:\r
1324         kfree(sensor);\r
1325 out_no_free:\r
1326         dev_err(&client->adapter->dev, "%s failed %d\n", __func__, result);\r
1327         return result;\r
1328 \r
1329 }\r
1330 \r
1331 static void sensor_shut_down(struct i2c_client *client)\r
1332 {\r
1333 #ifdef CONFIG_HAS_EARLYSUSPEND\r
1334         struct sensor_private_data *sensor =\r
1335             (struct sensor_private_data *) i2c_get_clientdata(client);\r
1336         if((sensor->ops->suspend) && (sensor->ops->resume))             \r
1337                 unregister_early_suspend(&sensor->early_suspend);\r
1338         DBG("%s:%s\n",__func__,sensor->i2c_id->name);\r
1339 #endif\r
1340 }\r
1341 \r
1342 static int sensor_remove(struct i2c_client *client)\r
1343 {\r
1344         struct sensor_private_data *sensor =\r
1345             (struct sensor_private_data *) i2c_get_clientdata(client);\r
1346         int result = 0;\r
1347         \r
1348         cancel_delayed_work_sync(&sensor->delaywork);\r
1349         misc_deregister(&sensor->miscdev);\r
1350         input_unregister_device(sensor->input_dev);     \r
1351         input_free_device(sensor->input_dev);   \r
1352         kfree(sensor);\r
1353 #ifdef CONFIG_HAS_EARLYSUSPEND\r
1354         if((sensor->ops->suspend) && (sensor->ops->resume))\r
1355                 unregister_early_suspend(&sensor->early_suspend);\r
1356 #endif  \r
1357         return result;\r
1358 }\r
1359 \r
1360 static const struct i2c_device_id sensor_id[] = {\r
1361         /*gsensor*/\r
1362         {"gsensor", ACCEL_ID_ALL},\r
1363         {"gs_mma8452", ACCEL_ID_MMA845X},       \r
1364         {"gs_kxtik", ACCEL_ID_KXTIK},\r
1365         {"gs_lis3dh", ACCEL_ID_LIS3DH},\r
1366         {"gs_mma7660", ACCEL_ID_MMA7660},\r
1367         /*compass*/\r
1368         {"compass", COMPASS_ID_ALL},\r
1369         {"ak8975", COMPASS_ID_AK8975},\r
1370         {"mmc314x", COMPASS_ID_MMC314X},\r
1371         /*gyroscope*/\r
1372         {"gyro", GYRO_ID_ALL},  \r
1373         {"l3g4200d_gryo", GYRO_ID_L3G4200D},\r
1374         {"k3g", GYRO_ID_K3G},\r
1375         /*light sensor*/\r
1376         {"lightsensor", LIGHT_ID_ALL},  \r
1377         {"light_cm3217", LIGHT_ID_CM3217},\r
1378         {"light_al3006", LIGHT_ID_AL3006},\r
1379         {"ls_stk3171", LIGHT_ID_STK3171},\r
1380         /*proximity sensor*/\r
1381         {"psensor", PROXIMITY_ID_ALL},\r
1382         {"proximity_al3006", PROXIMITY_ID_AL3006},      \r
1383         {"ps_stk3171", PROXIMITY_ID_STK3171},\r
1384         /*temperature*/\r
1385         {"temperature", TEMPERATURE_ID_ALL},\r
1386         {},\r
1387 };\r
1388 \r
1389 \r
1390 static struct i2c_driver sensor_driver = {\r
1391         .probe = sensor_probe,\r
1392         .remove = sensor_remove,\r
1393         .shutdown = sensor_shut_down,\r
1394         .id_table = sensor_id,\r
1395         .driver = {\r
1396                    .owner = THIS_MODULE,\r
1397                    .name = "sensors",\r
1398                    },\r
1399 };\r
1400 \r
1401 static int __init sensor_init(void)\r
1402 {\r
1403         int res = i2c_add_driver(&sensor_driver);\r
1404         pr_info("%s: Probe name %s\n", __func__, sensor_driver.driver.name);\r
1405         if (res)\r
1406                 pr_err("%s failed\n", __func__);\r
1407         return res;\r
1408 }\r
1409 \r
1410 static void __exit sensor_exit(void)\r
1411 {\r
1412         pr_info("%s\n", __func__);\r
1413         i2c_del_driver(&sensor_driver);\r
1414 }\r
1415 \r
1416 late_initcall(sensor_init);\r
1417 module_exit(sensor_exit);\r
1418 \r
1419 MODULE_AUTHOR("ROCKCHIP Corporation:lw@rock-chips.com");\r
1420 MODULE_DESCRIPTION("User space character device interface for sensors");\r
1421 MODULE_LICENSE("GPL");\r
1422 \r