-/* drivers/input/sensors/access/kxtik.c\r
- *\r
- * Copyright (C) 2012-2015 ROCKCHIP.\r
- * Author: Bruins <xwj@rock-chips.com>\r
- *\r
- * This software is licensed under the terms of the GNU General Public\r
- * License version 2, as published by the Free Software Foundation, and\r
- * may be copied, distributed, and modified under those terms.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- */\r
-\r
-#include <linux/interrupt.h>\r
-#include <linux/i2c.h>\r
-#include <linux/slab.h>\r
-#include <linux/irq.h>\r
-#include <linux/miscdevice.h>\r
-#include <linux/gpio.h>\r
-#include <asm/uaccess.h>\r
-#include <asm/atomic.h>\r
-#include <linux/delay.h>\r
-#include <linux/input.h>\r
-#include <linux/workqueue.h>\r
-#include <linux/freezer.h>\r
-#include <linux/of_gpio.h>\r
-#ifdef CONFIG_HAS_EARLYSUSPEND\r
-#include <linux/earlysuspend.h>\r
-#endif\r
-#include <linux/sensor-dev.h>\r
-\r
-\r
-#define LSM303D_WHO_AM_I (0x0F)\r
-\r
-/* full scale setting - register & mask */\r
-#define LSM303D_CTRL_REG0 (0x1F)\r
-#define LSM303D_CTRL_REG1 (0x20)\r
-#define LSM303D_CTRL_REG2 (0x21)\r
-#define LSM303D_CTRL_REG3 (0x22)\r
-#define LSM303D_CTRL_REG4 (0x23)\r
-#define LSM303D_CTRL_REG5 (0x24)\r
-#define LSM303D_CTRL_REG6 (0x25)\r
-#define LSM303D_CTRL_REG7 (0x26)\r
-#define LSM303D_STATUS_REG (0x27)\r
-#define LSM303D_OUT_X_L (0x28)\r
-#define LSM303D_OUT_X_H (0x29)\r
-#define LSM303D_OUT_Y_L (0x2a)\r
-#define LSM303D_OUT_Y_H (0x2b)\r
-#define LSM303D_OUT_Z_L (0x2c)\r
-#define LSM303D_OUT_Z_H (0x2d)\r
-#define LSM303D_FIFO_CTRL_REG (0x2E)\r
-#define LSM303D_FIFO_SRC_REG (0X2F)\r
-\r
-#define LSM303D_IG_CFG1 (0x30)\r
-#define LSM303D_IG_SRC1 (0x31)\r
-#define LSM303D_IG_THS1 (0x32)\r
-#define LSM303D_IG_DURATION1 (0x33)\r
-\r
-#define LSM303D_IG_CFG2 (0x34)\r
-#define LSM303D_IG_SRC2 (0x35)\r
-#define LSM303D_IG_THS2 (0x36)\r
-#define LSM303D_IG_DURATION2 (0x37)\r
-\r
-\r
-#define LSM303D_DEVID (0x49) //chip id\r
-#define LSM303D_ACC_DISABLE (0x08)\r
-\r
-#define LSM303D_RANGE 2000000\r
-\r
-/* LSM303D */\r
-#define LSM303D_PRECISION 16\r
-#define LSM303D_BOUNDARY (0x1 << (LSM303D_PRECISION - 1))\r
-#define LSM303D_GRAVITY_STEP (LSM303D_RANGE / LSM303D_BOUNDARY)\r
-\r
-#define ODR3P25 0x10 /* 3.25Hz output data rate */\r
-#define ODR6P25 0x20 /* 6.25Hz output data rate */\r
-#define ODR12P5 0x30 /* 12.5Hz output data rate */\r
-#define ODR25 0x40 /* 25Hz output data rate */\r
-#define ODR50 0x50 /* 50Hz output data rate */\r
-#define ODR100 0x60 /* 100Hz output data rate */\r
-#define ODR200 0x70 /* 200Hz output data rate */\r
-#define ODR400 0x80 /* 400Hz output data rate */\r
-#define ODR800 0x90 /* 800Hz output data rate */\r
-#define ODR1600 0xA0 /* 1600Hz output data rate */\r
-\r
-\r
-struct sensor_reg_data {\r
- char reg;\r
- char data;\r
-};\r
-\r
-/****************operate according to sensor chip:start************/\r
-static int sensor_active(struct i2c_client *client, int enable, int rate)\r
-{\r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- int result = 0;\r
- int status = 0;\r
- \r
- sensor->ops->ctrl_data = sensor_read_reg(client, sensor->ops->ctrl_reg);\r
-\r
- sensor->ops->ctrl_data |= ODR100; //100HZ,if 0 then power down\r
- \r
- //register setting according to chip datasheet \r
- if(!enable)\r
- { \r
- status = LSM303D_ACC_DISABLE; //lis3dh \r
- sensor->ops->ctrl_data |= status; \r
- }\r
- else\r
- {\r
- status = ~LSM303D_ACC_DISABLE; //lis3dh\r
- sensor->ops->ctrl_data &= status;\r
- }\r
-\r
- DBG("%s:reg=0x%x,reg_ctrl=0x%x,enable=%d\n",__func__,sensor->ops->ctrl_reg, sensor->ops->ctrl_data, enable);\r
- result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);\r
- if(result)\r
- printk("%s:fail to active sensor\n",__func__);\r
- \r
- return result;\r
-\r
-}\r
-\r
-\r
-static int sensor_init(struct i2c_client *client)\r
-{ \r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- int result = 0;\r
- int i;\r
-\r
- struct sensor_reg_data reg_data[] = \r
- {\r
- {LSM303D_CTRL_REG0,0x00},\r
- {LSM303D_CTRL_REG1,0x07},\r
- {LSM303D_CTRL_REG2,0x00},\r
- {LSM303D_CTRL_REG3,0x00},\r
- {LSM303D_CTRL_REG4,0x00},\r
- {LSM303D_CTRL_REG5,0x78}, //High resolution output mode:11,\r
- {LSM303D_CTRL_REG6,0x20},\r
- {LSM303D_CTRL_REG7,0x00},\r
- {LSM303D_FIFO_CTRL_REG,0x00},\r
- {LSM303D_IG_CFG1,0xFF}, //6 direction position recognition \r
- {LSM303D_IG_THS1,0x7F}, //Interrupt 1 threshold \r
- {LSM303D_IG_DURATION1,0x7F}, //Duration value 0x00->ox7f\r
- \r
- /*\r
- {LSM303D_CTRL_REG7,0x00}, \r
- {LSM303D_CTRL_REG4,0x08}, //High resolution output mode: 1, Normal mode \r
- {LSM303D_CTRL_REG6,0x40}, \r
- \r
- {LSM303D_FIFO_CTRL_REG,0x00}, // \r
- {LSM303D_IG_CFG1,0xFF}, //6 direction position recognition \r
- {LSM303D_IG_THS1,0x7F}, //Interrupt 1 threshold \r
- {LSM303D_IG_DURATION1,0x7F}, //Duration value 0x00->ox7f\r
- */\r
- }; \r
- \r
- result = sensor->ops->active(client,0,0);\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
-\r
- sensor->status_cur = SENSOR_OFF;\r
- \r
- for(i=0;i<(sizeof(reg_data)/sizeof(struct sensor_reg_data));i++)\r
- {\r
- result = sensor_write_reg(client, reg_data[i].reg, reg_data[i].data);\r
- if(result)\r
- {\r
- printk("%s:line=%d,i=%d,error\n",__func__,__LINE__,i);\r
- return result;\r
- }\r
- }\r
-\r
- \r
- if(sensor->pdata->irq_enable)\r
- {\r
-\r
- result = sensor_write_reg(client, LSM303D_CTRL_REG3, 0x20); \r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
-\r
- i = sensor_read_reg(client,LSM303D_CTRL_REG5);\r
- \r
- result = sensor_write_reg(client, LSM303D_CTRL_REG5, (i|0x01));\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
-\r
- }\r
- \r
- return result;\r
-}\r
-\r
-\r
-static int sensor_convert_data(struct i2c_client *client, char high_byte, char low_byte)\r
-{\r
- s64 result;\r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- \r
- switch (sensor->devid) { \r
- case LSM303D_DEVID: \r
- result = ((int)high_byte << 8) | (int)low_byte;\r
- if (result < LSM303D_BOUNDARY)\r
- result = result* LSM303D_GRAVITY_STEP;\r
- else\r
- result = ~( ((~result & (0x7fff>>(16-LSM303D_PRECISION)) ) + 1) \r
- * LSM303D_GRAVITY_STEP) + 1;\r
- break;\r
-\r
- default:\r
- printk(KERN_ERR "%s: devid wasn't set correctly\n",__func__);\r
- return -EFAULT;\r
- }\r
-\r
- return (int)result;\r
-}\r
-\r
-static int gsensor_report_value(struct i2c_client *client, struct sensor_axis *axis)\r
-{\r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
-\r
- /* Report acceleration sensor information */\r
- input_report_abs(sensor->input_dev, ABS_X, axis->x);\r
- input_report_abs(sensor->input_dev, ABS_Y, axis->y);\r
- input_report_abs(sensor->input_dev, ABS_Z, axis->z);\r
- input_sync(sensor->input_dev);\r
- DBG("Gsensor x==%d y==%d z==%d\n",axis->x,axis->y,axis->z);\r
-\r
- return 0;\r
-}\r
-\r
-#define GSENSOR_MIN 10\r
-static int sensor_report_value(struct i2c_client *client)\r
-{\r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- struct sensor_platform_data *pdata = sensor->pdata;\r
- int ret = 0;\r
- int x,y,z;\r
- struct sensor_axis axis; \r
- char buffer[6] = {0}; \r
- char value = 0;\r
- \r
- if(sensor->ops->read_len < 6) //sensor->ops->read_len = 6\r
- {\r
- printk("%s:lenth is error,len=%d\n",__func__,sensor->ops->read_len);\r
- return -1;\r
- }\r
- \r
- memset(buffer, 0, 6);\r
-\r
- value = sensor_read_reg(client, LSM303D_STATUS_REG);\r
- if((value & 0x0f) == 0)\r
- {\r
- printk("%s:line=%d,value=0x%x,data is not ready\n",__func__,__LINE__,value);\r
- return -1;\r
- }\r
- \r
- \r
- /* Data bytes from hardware xL, xH, yL, yH, zL, zH */ \r
- do {\r
- *buffer = sensor->ops->read_reg;\r
- ret = sensor_rx_data(client, buffer, sensor->ops->read_len);\r
- if (ret < 0)\r
- return ret;\r
- } while (0);\r
-\r
- //this gsensor need 6 bytes buffer\r
- x = sensor_convert_data(sensor->client, buffer[1], buffer[0]); //buffer[1]:high bit \r
- y = sensor_convert_data(sensor->client, buffer[3], buffer[2]);\r
- z = sensor_convert_data(sensor->client, buffer[5], buffer[4]); \r
-\r
- axis.x = (pdata->orientation[0])*x + (pdata->orientation[1])*y + (pdata->orientation[2])*z;\r
- axis.y = (pdata->orientation[3])*x + (pdata->orientation[4])*y + (pdata->orientation[5])*z; \r
- axis.z = (pdata->orientation[6])*x + (pdata->orientation[7])*y + (pdata->orientation[8])*z;\r
-\r
- DBG( "%s: axis = %d %d %d \n", __func__, axis.x, axis.y, axis.z);\r
- //printk( "%s: axis = %d %d %d \n", __func__, axis.x, axis.y, axis.z);\r
-\r
- //Report event only while value is changed to save some power\r
- if((abs(sensor->axis.x - axis.x) > GSENSOR_MIN) || (abs(sensor->axis.y - axis.y) > GSENSOR_MIN) || (abs(sensor->axis.z - axis.z) > GSENSOR_MIN))\r
- {\r
- gsensor_report_value(client, &axis);\r
-\r
- /* »¥³âµØ»º´æÊý¾Ý. */\r
- mutex_lock(&(sensor->data_mutex) );\r
- sensor->axis = axis;\r
- mutex_unlock(&(sensor->data_mutex) );\r
- }\r
-\r
- if((sensor->pdata->irq_enable)&& (sensor->ops->int_status_reg >= 0)) //read sensor intterupt status register\r
- {\r
- \r
- value = sensor_read_reg(client, sensor->ops->int_status_reg);\r
- DBG("%s:sensor int status :0x%x\n",__func__,value);\r
- }\r
- \r
- return ret;\r
-}\r
-\r
-struct sensor_operate gsensor_lsm303d_ops = {\r
- .name = "lsm303d",\r
- .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct\r
- .id_i2c = ACCEL_ID_LSM303D, //i2c id number\r
- .read_reg = (LSM303D_OUT_X_L | 0x80), //read data\r
- .read_len = 6, //data length\r
- .id_reg = LSM303D_WHO_AM_I, //read device id from this register\r
- .id_data = LSM303D_DEVID, //device id\r
- .precision = LSM303D_PRECISION, //16 bits\r
- .ctrl_reg = LSM303D_CTRL_REG1, //enable or disable \r
- .int_status_reg = LSM303D_IG_SRC1, //intterupt status register\r
- .range = {-LSM303D_RANGE,LSM303D_RANGE}, //range\r
- .trig = (IRQF_TRIGGER_LOW|IRQF_ONESHOT), \r
- .active = sensor_active, \r
- .init = sensor_init,\r
- .report = sensor_report_value,\r
-};\r
-\r
-\r
-/****************operate according to sensor chip:end************/\r
-\r
-//function name should not be changed\r
-static struct sensor_operate *gsensor_get_ops(void)\r
-{\r
- return &gsensor_lsm303d_ops;\r
-}\r
-\r
-\r
-static int __init gsensor_lis3dh_init(void)\r
-{\r
- struct sensor_operate *ops = gsensor_get_ops();\r
- int result = 0;\r
- int type = ops->type;\r
- result = sensor_register_slave(type, NULL, NULL, gsensor_get_ops);\r
- return result;\r
-}\r
-\r
-static void __exit gsensor_lis3dh_exit(void)\r
-{\r
- struct sensor_operate *ops = gsensor_get_ops();\r
- int type = ops->type;\r
- sensor_unregister_slave(type, NULL, NULL, gsensor_get_ops);\r
-}\r
-\r
-\r
-module_init(gsensor_lis3dh_init);\r
-module_exit(gsensor_lis3dh_exit);\r
-\r
-\r
-\r
-\r
+/* drivers/input/sensors/access/kxtik.c
+ *
+ * Copyright (C) 2012-2015 ROCKCHIP.
+ * Author: Bruins <xwj@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/miscdevice.h>
+#include <linux/gpio.h>
+#include <asm/uaccess.h>
+#include <asm/atomic.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/workqueue.h>
+#include <linux/freezer.h>
+#include <linux/of_gpio.h>
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
+#include <linux/sensor-dev.h>
+
+
+#define LSM303D_WHO_AM_I (0x0F)
+
+/* full scale setting - register & mask */
+#define LSM303D_CTRL_REG0 (0x1F)
+#define LSM303D_CTRL_REG1 (0x20)
+#define LSM303D_CTRL_REG2 (0x21)
+#define LSM303D_CTRL_REG3 (0x22)
+#define LSM303D_CTRL_REG4 (0x23)
+#define LSM303D_CTRL_REG5 (0x24)
+#define LSM303D_CTRL_REG6 (0x25)
+#define LSM303D_CTRL_REG7 (0x26)
+#define LSM303D_STATUS_REG (0x27)
+#define LSM303D_OUT_X_L (0x28)
+#define LSM303D_OUT_X_H (0x29)
+#define LSM303D_OUT_Y_L (0x2a)
+#define LSM303D_OUT_Y_H (0x2b)
+#define LSM303D_OUT_Z_L (0x2c)
+#define LSM303D_OUT_Z_H (0x2d)
+#define LSM303D_FIFO_CTRL_REG (0x2E)
+#define LSM303D_FIFO_SRC_REG (0X2F)
+
+#define LSM303D_IG_CFG1 (0x30)
+#define LSM303D_IG_SRC1 (0x31)
+#define LSM303D_IG_THS1 (0x32)
+#define LSM303D_IG_DURATION1 (0x33)
+
+#define LSM303D_IG_CFG2 (0x34)
+#define LSM303D_IG_SRC2 (0x35)
+#define LSM303D_IG_THS2 (0x36)
+#define LSM303D_IG_DURATION2 (0x37)
+
+
+#define LSM303D_DEVID (0x49) //chip id
+#define LSM303D_ACC_DISABLE (0x08)
+
+#define LSM303D_RANGE 2000000
+
+/* LSM303D */
+#define LSM303D_PRECISION 16
+#define LSM303D_BOUNDARY (0x1 << (LSM303D_PRECISION - 1))
+#define LSM303D_GRAVITY_STEP (LSM303D_RANGE / LSM303D_BOUNDARY)
+
+#define ODR3P25 0x10 /* 3.25Hz output data rate */
+#define ODR6P25 0x20 /* 6.25Hz output data rate */
+#define ODR12P5 0x30 /* 12.5Hz output data rate */
+#define ODR25 0x40 /* 25Hz output data rate */
+#define ODR50 0x50 /* 50Hz output data rate */
+#define ODR100 0x60 /* 100Hz output data rate */
+#define ODR200 0x70 /* 200Hz output data rate */
+#define ODR400 0x80 /* 400Hz output data rate */
+#define ODR800 0x90 /* 800Hz output data rate */
+#define ODR1600 0xA0 /* 1600Hz output data rate */
+
+
+struct sensor_reg_data {
+ char reg;
+ char data;
+};
+
+/****************operate according to sensor chip:start************/
+static int sensor_active(struct i2c_client *client, int enable, int rate)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+ int result = 0;
+ int status = 0;
+
+ sensor->ops->ctrl_data = sensor_read_reg(client, sensor->ops->ctrl_reg);
+
+ sensor->ops->ctrl_data |= ODR100; //100HZ,if 0 then power down
+
+ //register setting according to chip datasheet
+ if(!enable)
+ {
+ status = LSM303D_ACC_DISABLE; //lis3dh
+ sensor->ops->ctrl_data |= status;
+ }
+ else
+ {
+ status = ~LSM303D_ACC_DISABLE; //lis3dh
+ sensor->ops->ctrl_data &= status;
+ }
+
+ DBG("%s:reg=0x%x,reg_ctrl=0x%x,enable=%d\n",__func__,sensor->ops->ctrl_reg, sensor->ops->ctrl_data, enable);
+ result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);
+ if(result)
+ printk("%s:fail to active sensor\n",__func__);
+
+ return result;
+
+}
+
+
+static int sensor_init(struct i2c_client *client)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+ int result = 0;
+ int i;
+
+ struct sensor_reg_data reg_data[] =
+ {
+ {LSM303D_CTRL_REG0,0x00},
+ {LSM303D_CTRL_REG1,0x07},
+ {LSM303D_CTRL_REG2,0x00},
+ {LSM303D_CTRL_REG3,0x00},
+ {LSM303D_CTRL_REG4,0x00},
+ {LSM303D_CTRL_REG5,0x78}, //High resolution output mode:11,
+ {LSM303D_CTRL_REG6,0x20},
+ {LSM303D_CTRL_REG7,0x00},
+ {LSM303D_FIFO_CTRL_REG,0x00},
+ {LSM303D_IG_CFG1,0xFF}, //6 direction position recognition
+ {LSM303D_IG_THS1,0x7F}, //Interrupt 1 threshold
+ {LSM303D_IG_DURATION1,0x7F}, //Duration value 0x00->ox7f
+
+ /*
+ {LSM303D_CTRL_REG7,0x00},
+ {LSM303D_CTRL_REG4,0x08}, //High resolution output mode: 1, Normal mode
+ {LSM303D_CTRL_REG6,0x40},
+
+ {LSM303D_FIFO_CTRL_REG,0x00}, //
+ {LSM303D_IG_CFG1,0xFF}, //6 direction position recognition
+ {LSM303D_IG_THS1,0x7F}, //Interrupt 1 threshold
+ {LSM303D_IG_DURATION1,0x7F}, //Duration value 0x00->ox7f
+ */
+ };
+
+ result = sensor->ops->active(client,0,0);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ sensor->status_cur = SENSOR_OFF;
+
+ for(i=0;i<(sizeof(reg_data)/sizeof(struct sensor_reg_data));i++)
+ {
+ result = sensor_write_reg(client, reg_data[i].reg, reg_data[i].data);
+ if(result)
+ {
+ printk("%s:line=%d,i=%d,error\n",__func__,__LINE__,i);
+ return result;
+ }
+ }
+
+
+ if(sensor->pdata->irq_enable)
+ {
+
+ result = sensor_write_reg(client, LSM303D_CTRL_REG3, 0x20);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ i = sensor_read_reg(client,LSM303D_CTRL_REG5);
+
+ result = sensor_write_reg(client, LSM303D_CTRL_REG5, (i|0x01));
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ }
+
+ return result;
+}
+
+
+static int sensor_convert_data(struct i2c_client *client, char high_byte, char low_byte)
+{
+ s64 result;
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+
+ switch (sensor->devid) {
+ case LSM303D_DEVID:
+ result = ((int)high_byte << 8) | (int)low_byte;
+ if (result < LSM303D_BOUNDARY)
+ result = result* LSM303D_GRAVITY_STEP;
+ else
+ result = ~( ((~result & (0x7fff>>(16-LSM303D_PRECISION)) ) + 1)
+ * LSM303D_GRAVITY_STEP) + 1;
+ break;
+
+ default:
+ printk(KERN_ERR "%s: devid wasn't set correctly\n",__func__);
+ return -EFAULT;
+ }
+
+ return (int)result;
+}
+
+static int gsensor_report_value(struct i2c_client *client, struct sensor_axis *axis)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+
+ /* Report acceleration sensor information */
+ input_report_abs(sensor->input_dev, ABS_X, axis->x);
+ input_report_abs(sensor->input_dev, ABS_Y, axis->y);
+ input_report_abs(sensor->input_dev, ABS_Z, axis->z);
+ input_sync(sensor->input_dev);
+ DBG("Gsensor x==%d y==%d z==%d\n",axis->x,axis->y,axis->z);
+
+ return 0;
+}
+
+#define GSENSOR_MIN 10
+static int sensor_report_value(struct i2c_client *client)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+ struct sensor_platform_data *pdata = sensor->pdata;
+ int ret = 0;
+ int x,y,z;
+ struct sensor_axis axis;
+ char buffer[6] = {0};
+ char value = 0;
+
+ if(sensor->ops->read_len < 6) //sensor->ops->read_len = 6
+ {
+ printk("%s:lenth is error,len=%d\n",__func__,sensor->ops->read_len);
+ return -1;
+ }
+
+ memset(buffer, 0, 6);
+
+ value = sensor_read_reg(client, LSM303D_STATUS_REG);
+ if((value & 0x0f) == 0)
+ {
+ printk("%s:line=%d,value=0x%x,data is not ready\n",__func__,__LINE__,value);
+ return -1;
+ }
+
+
+ /* Data bytes from hardware xL, xH, yL, yH, zL, zH */
+ do {
+ *buffer = sensor->ops->read_reg;
+ ret = sensor_rx_data(client, buffer, sensor->ops->read_len);
+ if (ret < 0)
+ return ret;
+ } while (0);
+
+ //this gsensor need 6 bytes buffer
+ x = sensor_convert_data(sensor->client, buffer[1], buffer[0]); //buffer[1]:high bit
+ y = sensor_convert_data(sensor->client, buffer[3], buffer[2]);
+ z = sensor_convert_data(sensor->client, buffer[5], buffer[4]);
+
+ axis.x = (pdata->orientation[0])*x + (pdata->orientation[1])*y + (pdata->orientation[2])*z;
+ axis.y = (pdata->orientation[3])*x + (pdata->orientation[4])*y + (pdata->orientation[5])*z;
+ axis.z = (pdata->orientation[6])*x + (pdata->orientation[7])*y + (pdata->orientation[8])*z;
+
+ DBG( "%s: axis = %d %d %d \n", __func__, axis.x, axis.y, axis.z);
+ //printk( "%s: axis = %d %d %d \n", __func__, axis.x, axis.y, axis.z);
+
+ //Report event only while value is changed to save some power
+ if((abs(sensor->axis.x - axis.x) > GSENSOR_MIN) || (abs(sensor->axis.y - axis.y) > GSENSOR_MIN) || (abs(sensor->axis.z - axis.z) > GSENSOR_MIN))
+ {
+ gsensor_report_value(client, &axis);
+
+ /* »¥³âµØ»º´æÊý¾Ý. */
+ mutex_lock(&(sensor->data_mutex) );
+ sensor->axis = axis;
+ mutex_unlock(&(sensor->data_mutex) );
+ }
+
+ if((sensor->pdata->irq_enable)&& (sensor->ops->int_status_reg >= 0)) //read sensor intterupt status register
+ {
+
+ value = sensor_read_reg(client, sensor->ops->int_status_reg);
+ DBG("%s:sensor int status :0x%x\n",__func__,value);
+ }
+
+ return ret;
+}
+
+struct sensor_operate gsensor_lsm303d_ops = {
+ .name = "lsm303d",
+ .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct
+ .id_i2c = ACCEL_ID_LSM303D, //i2c id number
+ .read_reg = (LSM303D_OUT_X_L | 0x80), //read data
+ .read_len = 6, //data length
+ .id_reg = LSM303D_WHO_AM_I, //read device id from this register
+ .id_data = LSM303D_DEVID, //device id
+ .precision = LSM303D_PRECISION, //16 bits
+ .ctrl_reg = LSM303D_CTRL_REG1, //enable or disable
+ .int_status_reg = LSM303D_IG_SRC1, //intterupt status register
+ .range = {-LSM303D_RANGE,LSM303D_RANGE}, //range
+ .trig = (IRQF_TRIGGER_LOW|IRQF_ONESHOT),
+ .active = sensor_active,
+ .init = sensor_init,
+ .report = sensor_report_value,
+};
+
+
+/****************operate according to sensor chip:end************/
+
+//function name should not be changed
+static struct sensor_operate *gsensor_get_ops(void)
+{
+ return &gsensor_lsm303d_ops;
+}
+
+
+static int __init gsensor_lis3dh_init(void)
+{
+ struct sensor_operate *ops = gsensor_get_ops();
+ int result = 0;
+ int type = ops->type;
+ result = sensor_register_slave(type, NULL, NULL, gsensor_get_ops);
+ return result;
+}
+
+static void __exit gsensor_lis3dh_exit(void)
+{
+ struct sensor_operate *ops = gsensor_get_ops();
+ int type = ops->type;
+ sensor_unregister_slave(type, NULL, NULL, gsensor_get_ops);
+}
+
+
+module_init(gsensor_lis3dh_init);
+module_exit(gsensor_lis3dh_exit);
+
+
+
+
projects / firefly-linux-kernel-4.4.55.git / blobdiff