-/* drivers/input/sensors/access/kxtik.c\r
- *\r
- * Copyright (C) 2012-2015 ROCKCHIP.\r
- * Author: luowei <lw@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
-#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 <mach/gpio.h>\r
-#include <mach/board.h> \r
-#ifdef CONFIG_HAS_EARLYSUSPEND\r
-#include <linux/earlysuspend.h>\r
-#endif\r
-#include <linux/kxtik.h>\r
-#include <linux/sensor-dev.h>\r
-\r
-#if 0\r
-#define SENSOR_DEBUG_TYPE SENSOR_TYPE_ACCEL\r
-#define DBG(x...) if(sensor->pdata->type == SENSOR_DEBUG_TYPE) printk(x)\r
-#else\r
-#define DBG(x...)\r
-#endif\r
-\r
-\r
-\r
-/****************operate according to sensor chip:start************/\r
-\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
- //register setting according to chip datasheet \r
- if(enable)\r
- { \r
- status = KXTIK_ENABLE; //kxtik \r
- sensor->ops->ctrl_data |= status; \r
- }\r
- else\r
- {\r
- status = ~KXTIK_ENABLE; //kxtik\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
-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
- \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
- result = sensor_write_reg(client, KXTIK_DATA_CTRL_REG, KXTIK_ODR400F);\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
-\r
- if(sensor->pdata->irq_enable) //open interrupt\r
- {\r
- result = sensor_write_reg(client, KXTIK_INT_CTRL_REG1, 0x34);//enable int,active high,need read INT_REL\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
- }\r
- \r
- sensor->ops->ctrl_data = (KXTIK_RES_12BIT | KXTIK_G_2G);\r
- result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
- \r
- return result;\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
- //int precision = sensor->ops->precision;\r
- switch (sensor->devid) { \r
- case KXTIK_DEVID: \r
- result = (((int)high_byte << 8) | ((int)low_byte ))>>4;\r
- if (result < KXTIK_BOUNDARY)\r
- result = result* KXTIK_GRAVITY_STEP;\r
- else\r
- result = ~( ((~result & (0x7fff>>(16-KXTIK_PRECISION)) ) + 1) \r
- * KXTIK_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
- /* 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
-\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_ops = {\r
- .name = "kxtik",\r
- .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct\r
- .id_i2c = ACCEL_ID_KXTIK, //i2c id number\r
- .read_reg = KXTIK_XOUT_L, //read data\r
- .read_len = 6, //data length\r
- .id_reg = KXTIK_WHO_AM_I, //read device id from this register\r
- .id_data = KXTIK_DEVID, //device id\r
- .precision = KXTIK_PRECISION, //12 bits\r
- .ctrl_reg = KXTIK_CTRL_REG1, //enable or disable \r
- .int_status_reg = KXTIK_INT_REL, //intterupt status register\r
- .range = {-KXTIK_RANGE,KXTIK_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
-/****************operate according to sensor chip:end************/\r
-\r
-//function name should not be changed\r
-struct sensor_operate *gsensor_get_ops(void)\r
-{\r
- return &gsensor_ops;\r
-}\r
-\r
-EXPORT_SYMBOL(gsensor_get_ops);\r
-\r
-static int __init gsensor_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
- printk("%s\n",__func__);\r
- return result;\r
-}\r
-\r
-static void __exit gsensor_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_init);\r
-module_exit(gsensor_exit);\r
-\r
-\r
+/* drivers/input/sensors/access/kxtik.c
+ *
+ * Copyright (C) 2012-2015 ROCKCHIP.
+ * Author: luowei <lw@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 <mach/gpio.h>
+#include <mach/board.h>
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
+#include <linux/kxtik.h>
+#include <linux/sensor-dev.h>
+
+#if 0
+#define SENSOR_DEBUG_TYPE SENSOR_TYPE_ACCEL
+#define DBG(x...) if(sensor->pdata->type == SENSOR_DEBUG_TYPE) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+struct i2c_client *this_client=NULL;
+static struct class *sensor_class = NULL;
+
+static ssize_t sensor_setoratitention(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int i=0;
+ char gsensororatation[20];
+
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(this_client);
+ struct sensor_platform_data *pdata = sensor->pdata;
+
+
+ char *p = strstr(buf,"gsensor");
+ int start = strcspn(p,"{");
+ int end = strcspn(p,"}");
+
+ strncpy(gsensororatation,p+start,end-start+1);
+ char *tmp=gsensororatation;
+
+
+ while(strncmp(tmp,"}",1)!=0)
+ {
+ if((strncmp(tmp,",",1)==0)||(strncmp(tmp,"{",1)==0))
+ {
+
+ tmp++;
+ continue;
+ }
+ else if(strncmp(tmp,"-",1)==0)
+ {
+ pdata->orientation[i++]=-1;
+ DBG("i=%d,data=%d\n",i,pdata->orientation[i]);
+ tmp++;
+ }
+ else
+ {
+ pdata->orientation[i++]=tmp[0]-48;
+ DBG("----i=%d,data=%d\n",i,pdata->orientation[i]);
+ }
+ tmp++;
+
+
+ }
+
+ for(i=0;i<9;i++)
+ DBG("i=%d gsensor_info=%d\n",i,pdata->orientation[i]);
+ return 0;
+
+}
+
+static CLASS_ATTR(oratiention, 0777, NULL,sensor_setoratitention);
+
+static int sensor_sys_init(void)
+{
+ int ret ;
+ sensor_class = class_create(THIS_MODULE, "gsensor");
+ ret = class_create_file(sensor_class, &class_attr_oratiention);
+ if (ret)
+ {
+ printk("Fail to creat class oratiention.\n");
+ }
+ return 0;
+}
+
+/****************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);
+
+ //register setting according to chip datasheet
+ if(enable)
+ {
+ status = KXTIK_ENABLE; //kxtik
+ sensor->ops->ctrl_data |= status;
+ }
+ else
+ {
+ status = ~KXTIK_ENABLE; //kxtik
+ 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;
+
+ result = sensor->ops->active(client,0,0);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+ this_client = client;
+
+ sensor->status_cur = SENSOR_OFF;
+
+ result = sensor_write_reg(client, KXTIK_DATA_CTRL_REG, KXTIK_ODR400F);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ if(sensor->pdata->irq_enable) //open interrupt
+ {
+ result = sensor_write_reg(client, KXTIK_INT_CTRL_REG1, 0x34);//enable int,active high,need read INT_REL
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+ }
+
+ sensor->ops->ctrl_data = (KXTIK_RES_12BIT | KXTIK_G_2G);
+ result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ sensor_sys_init();
+ 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);
+ //int precision = sensor->ops->precision;
+ switch (sensor->devid) {
+ case KXTIK_DEVID:
+ result = (((int)high_byte << 8) | ((int)low_byte ))>>4;
+ if (result < KXTIK_BOUNDARY)
+ result = result* KXTIK_GRAVITY_STEP;
+ else
+ result = ~( ((~result & (0x7fff>>(16-KXTIK_PRECISION)) ) + 1)
+ * KXTIK_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);
+
+ /* 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);
+
+ //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_ops = {
+ .name = "kxtik",
+ .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct
+ .id_i2c = ACCEL_ID_KXTIK, //i2c id number
+ .read_reg = KXTIK_XOUT_L, //read data
+ .read_len = 6, //data length
+ .id_reg = KXTIK_WHO_AM_I, //read device id from this register
+ .id_data = KXTIK_DEVID, //device id
+ .precision = KXTIK_PRECISION, //12 bits
+ .ctrl_reg = KXTIK_CTRL_REG1, //enable or disable
+ .int_status_reg = KXTIK_INT_REL, //intterupt status register
+ .range = {-KXTIK_RANGE,KXTIK_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
+struct sensor_operate *gsensor_get_ops(void)
+{
+ return &gsensor_ops;
+}
+
+EXPORT_SYMBOL(gsensor_get_ops);
+
+static int __init gsensor_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);
+ printk("%s\n",__func__);
+ return result;
+}
+
+static void __exit gsensor_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_init);
+module_exit(gsensor_exit);
+
+
-/* drivers/input/sensors/access/kxtik.c\r
- *\r
- * Copyright (C) 2012-2015 ROCKCHIP.\r
- * Author: luowei <lw@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
-#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 <mach/gpio.h>\r
-#include <mach/board.h> \r
-#ifdef CONFIG_HAS_EARLYSUSPEND\r
-#include <linux/earlysuspend.h>\r
-#endif\r
-#include <linux/sensor-dev.h>\r
-\r
-#if 0\r
-#define SENSOR_DEBUG_TYPE SENSOR_TYPE_ACCEL\r
-#define DBG(x...) if(sensor->pdata->type == SENSOR_DEBUG_TYPE) printk(x)\r
-#else\r
-#define DBG(x...)\r
-#endif\r
-\r
-#define LIS3DH_INT_COUNT (0x0E)\r
-#define LIS3DH_WHO_AM_I (0x0F)\r
-\r
-/* full scale setting - register & mask */\r
-#define LIS3DH_TEMP_CFG_REG (0x1F)\r
-#define LIS3DH_CTRL_REG1 (0x20)\r
-#define LIS3DH_CTRL_REG2 (0x21)\r
-#define LIS3DH_CTRL_REG3 (0x22)\r
-#define LIS3DH_CTRL_REG4 (0x23)\r
-#define LIS3DH_CTRL_REG5 (0x24)\r
-#define LIS3DH_CTRL_REG6 (0x25)\r
-#define LIS3DH_REFERENCE (0x26)\r
-#define LIS3DH_STATUS_REG (0x27)\r
-#define LIS3DH_OUT_X_L (0x28)\r
-#define LIS3DH_OUT_X_H (0x29)\r
-#define LIS3DH_OUT_Y_L (0x2a)\r
-#define LIS3DH_OUT_Y_H (0x2b)\r
-#define LIS3DH_OUT_Z_L (0x2c)\r
-#define LIS3DH_OUT_Z_H (0x2d)\r
-#define LIS3DH_FIFO_CTRL_REG (0x2E)\r
-\r
-#define LIS3DH_INT1_CFG (0x30)\r
-#define LIS3DH_INT1_SRC (0x31)\r
-#define LIS3DH_INT1_THS (0x32)\r
-#define LIS3DH_INT1_DURATION (0x33)\r
-\r
-#define LIS3DH_DEVID (0x33) //chip id\r
-#define LIS3DH_ACC_DISABLE (0x08)\r
-\r
-#define LIS3DH_RANGE 2000000\r
-\r
-/* LIS3DH */\r
-#define LIS3DH_PRECISION 16\r
-#define LIS3DH_BOUNDARY (0x1 << (LIS3DH_PRECISION - 1))\r
-#define LIS3DH_GRAVITY_STEP (LIS3DH_RANGE / LIS3DH_BOUNDARY)\r
-\r
-#define ODR1 0x10 /* 1Hz output data rate */\r
-#define ODR10 0x20 /* 10Hz output data rate */\r
-#define ODR25 0x30 /* 25Hz output data rate */\r
-#define ODR50 0x40 /* 50Hz output data rate */\r
-#define ODR100 0x50 /* 100Hz output data rate */\r
-#define ODR200 0x60 /* 200Hz output data rate */\r
-#define ODR400 0x70 /* 400Hz output data rate */\r
-#define ODR1250 0x90 /* 1250Hz output data rate */\r
-\r
-\r
-\r
-struct sensor_reg_data {\r
- char reg;\r
- char data;\r
-};\r
-\r
-\r
-/****************operate according to sensor chip:start************/\r
-\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 = LIS3DH_ACC_DISABLE; //lis3dh \r
- sensor->ops->ctrl_data |= status; \r
- }\r
- else\r
- {\r
- status = ~LIS3DH_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
-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
- struct sensor_reg_data reg_data[] = \r
- { \r
- {LIS3DH_CTRL_REG2,0X00}, \r
- {LIS3DH_CTRL_REG4,0x08}, //High resolution output mode: 1, Normal mode \r
- {LIS3DH_CTRL_REG6,0x40}, \r
- {LIS3DH_TEMP_CFG_REG,0x00}, //\r
- {LIS3DH_FIFO_CTRL_REG,0x00}, // \r
- {LIS3DH_INT1_CFG,0xFF}, //6 direction position recognition \r
- {LIS3DH_INT1_THS,0x7F}, //Interrupt 1 threshold \r
- {LIS3DH_INT1_DURATION,0x7F}, //Duration value 0x00->ox7f\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, LIS3DH_CTRL_REG3, 0x40);//I1_AOI1 =1 if motion \r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
-\r
- result = sensor_write_reg(client, LIS3DH_CTRL_REG5, 0x08);\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
-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
- //int precision = sensor->ops->precision;\r
- switch (sensor->devid) { \r
- case LIS3DH_DEVID: \r
- result = ((int)high_byte << 8) | (int)low_byte;\r
- if (result < LIS3DH_BOUNDARY)\r
- result = result* LIS3DH_GRAVITY_STEP;\r
- else\r
- result = ~( ((~result & (0x7fff>>(16-LIS3DH_PRECISION)) ) + 1) \r
- * LIS3DH_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, LIS3DH_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
-\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_ops = {\r
- .name = "lis3dh",\r
- .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct\r
- .id_i2c = ACCEL_ID_LIS3DH, //i2c id number\r
- .read_reg = (LIS3DH_OUT_X_L | 0x80), //read data\r
- .read_len = 6, //data length\r
- .id_reg = LIS3DH_WHO_AM_I, //read device id from this register\r
- .id_data = LIS3DH_DEVID, //device id\r
- .precision = LIS3DH_PRECISION, //12 bits\r
- .ctrl_reg = LIS3DH_CTRL_REG1, //enable or disable \r
- .int_status_reg = LIS3DH_INT1_SRC, //intterupt status register\r
- .range = {-LIS3DH_RANGE,LIS3DH_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
-/****************operate according to sensor chip:end************/\r
-\r
-//function name should not be changed\r
-struct sensor_operate *gsensor_get_ops(void)\r
-{\r
- return &gsensor_ops;\r
-}\r
-\r
-EXPORT_SYMBOL(gsensor_get_ops);\r
-\r
-static int __init gsensor_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
- printk("%s\n",__func__);\r
- return result;\r
-}\r
-\r
-static void __exit gsensor_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_init);\r
-module_exit(gsensor_exit);\r
-\r
-\r
+/* drivers/input/sensors/access/kxtik.c
+ *
+ * Copyright (C) 2012-2015 ROCKCHIP.
+ * Author: luowei <lw@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 <mach/gpio.h>
+#include <mach/board.h>
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
+#include <linux/sensor-dev.h>
+
+#if 0
+#define SENSOR_DEBUG_TYPE SENSOR_TYPE_ACCEL
+#define DBG(x...) if(sensor->pdata->type == SENSOR_DEBUG_TYPE) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+#define LIS3DH_INT_COUNT (0x0E)
+#define LIS3DH_WHO_AM_I (0x0F)
+
+/* full scale setting - register & mask */
+#define LIS3DH_TEMP_CFG_REG (0x1F)
+#define LIS3DH_CTRL_REG1 (0x20)
+#define LIS3DH_CTRL_REG2 (0x21)
+#define LIS3DH_CTRL_REG3 (0x22)
+#define LIS3DH_CTRL_REG4 (0x23)
+#define LIS3DH_CTRL_REG5 (0x24)
+#define LIS3DH_CTRL_REG6 (0x25)
+#define LIS3DH_REFERENCE (0x26)
+#define LIS3DH_STATUS_REG (0x27)
+#define LIS3DH_OUT_X_L (0x28)
+#define LIS3DH_OUT_X_H (0x29)
+#define LIS3DH_OUT_Y_L (0x2a)
+#define LIS3DH_OUT_Y_H (0x2b)
+#define LIS3DH_OUT_Z_L (0x2c)
+#define LIS3DH_OUT_Z_H (0x2d)
+#define LIS3DH_FIFO_CTRL_REG (0x2E)
+
+#define LIS3DH_INT1_CFG (0x30)
+#define LIS3DH_INT1_SRC (0x31)
+#define LIS3DH_INT1_THS (0x32)
+#define LIS3DH_INT1_DURATION (0x33)
+
+#define LIS3DH_DEVID (0x33) //chip id
+#define LIS3DH_ACC_DISABLE (0x08)
+
+#define LIS3DH_RANGE 2000000
+
+/* LIS3DH */
+#define LIS3DH_PRECISION 16
+#define LIS3DH_BOUNDARY (0x1 << (LIS3DH_PRECISION - 1))
+#define LIS3DH_GRAVITY_STEP (LIS3DH_RANGE / LIS3DH_BOUNDARY)
+
+#define ODR1 0x10 /* 1Hz output data rate */
+#define ODR10 0x20 /* 10Hz output data rate */
+#define ODR25 0x30 /* 25Hz output data rate */
+#define ODR50 0x40 /* 50Hz output data rate */
+#define ODR100 0x50 /* 100Hz output data rate */
+#define ODR200 0x60 /* 200Hz output data rate */
+#define ODR400 0x70 /* 400Hz output data rate */
+#define ODR1250 0x90 /* 1250Hz output data rate */
+
+
+
+struct sensor_reg_data {
+ char reg;
+ char data;
+};
+
+struct i2c_client *this_client=NULL;
+static struct class *sensor_class = NULL;
+
+static ssize_t sensor_setoratitention(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int i=0;
+ char gsensororatation[20];
+
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(this_client);
+ struct sensor_platform_data *pdata = sensor->pdata;
+
+
+ char *p = strstr(buf,"gsensor");
+ int start = strcspn(p,"{");
+ int end = strcspn(p,"}");
+
+ strncpy(gsensororatation,p+start,end-start+1);
+ char *tmp=gsensororatation;
+
+
+ while(strncmp(tmp,"}",1)!=0)
+ {
+ if((strncmp(tmp,",",1)==0)||(strncmp(tmp,"{",1)==0))
+ {
+
+ tmp++;
+ continue;
+ }
+ else if(strncmp(tmp,"-",1)==0)
+ {
+ pdata->orientation[i++]=-1;
+ DBG("i=%d,data=%d\n",i,pdata->orientation[i]);
+ tmp++;
+ }
+ else
+ {
+ pdata->orientation[i++]=tmp[0]-48;
+ DBG("----i=%d,data=%d\n",i,pdata->orientation[i]);
+ }
+ tmp++;
+
+
+ }
+
+ for(i=0;i<9;i++)
+ DBG("i=%d gsensor_info=%d\n",i,pdata->orientation[i]);
+ return 0;
+
+}
+
+static CLASS_ATTR(oratiention, 0777, NULL,sensor_setoratitention);
+
+static int sensor_sys_init(void)
+{
+ int ret ;
+ sensor_class = class_create(THIS_MODULE, "gsensor");
+ ret = class_create_file(sensor_class, &class_attr_oratiention);
+ if (ret)
+ {
+ printk("Fail to creat class oratiention.\n");
+ }
+ return 0;
+}
+
+/****************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 = LIS3DH_ACC_DISABLE; //lis3dh
+ sensor->ops->ctrl_data |= status;
+ }
+ else
+ {
+ status = ~LIS3DH_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[] =
+ {
+ {LIS3DH_CTRL_REG2,0X00},
+ {LIS3DH_CTRL_REG4,0x08}, //High resolution output mode: 1, Normal mode
+ {LIS3DH_CTRL_REG6,0x40},
+ {LIS3DH_TEMP_CFG_REG,0x00}, //
+ {LIS3DH_FIFO_CTRL_REG,0x00}, //
+ {LIS3DH_INT1_CFG,0xFF}, //6 direction position recognition
+ {LIS3DH_INT1_THS,0x7F}, //Interrupt 1 threshold
+ {LIS3DH_INT1_DURATION,0x7F}, //Duration value 0x00->ox7f
+ };
+
+ result = sensor->ops->active(client,0,0);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+ this_client = client;
+
+ 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, LIS3DH_CTRL_REG3, 0x40);//I1_AOI1 =1 if motion
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ result = sensor_write_reg(client, LIS3DH_CTRL_REG5, 0x08);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ }
+ sensor_sys_init();
+
+ 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);
+ //int precision = sensor->ops->precision;
+ switch (sensor->devid) {
+ case LIS3DH_DEVID:
+ result = ((int)high_byte << 8) | (int)low_byte;
+ if (result < LIS3DH_BOUNDARY)
+ result = result* LIS3DH_GRAVITY_STEP;
+ else
+ result = ~( ((~result & (0x7fff>>(16-LIS3DH_PRECISION)) ) + 1)
+ * LIS3DH_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, LIS3DH_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);
+
+ //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_ops = {
+ .name = "lis3dh",
+ .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct
+ .id_i2c = ACCEL_ID_LIS3DH, //i2c id number
+ .read_reg = (LIS3DH_OUT_X_L | 0x80), //read data
+ .read_len = 6, //data length
+ .id_reg = LIS3DH_WHO_AM_I, //read device id from this register
+ .id_data = LIS3DH_DEVID, //device id
+ .precision = LIS3DH_PRECISION, //12 bits
+ .ctrl_reg = LIS3DH_CTRL_REG1, //enable or disable
+ .int_status_reg = LIS3DH_INT1_SRC, //intterupt status register
+ .range = {-LIS3DH_RANGE,LIS3DH_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
+struct sensor_operate *gsensor_get_ops(void)
+{
+ return &gsensor_ops;
+}
+
+EXPORT_SYMBOL(gsensor_get_ops);
+
+static int __init gsensor_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);
+ printk("%s\n",__func__);
+ return result;
+}
+
+static void __exit gsensor_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_init);
+module_exit(gsensor_exit);
+
+
-/* drivers/input/sensors/access/mma8452.c\r
- *\r
- * Copyright (C) 2012-2015 ROCKCHIP.\r
- * Author: luowei <lw@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
-#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 <mach/gpio.h>\r
-#include <mach/board.h> \r
-#ifdef CONFIG_HAS_EARLYSUSPEND\r
-#include <linux/earlysuspend.h>\r
-#endif\r
-#include <linux/mma8452.h>\r
-#include <linux/sensor-dev.h>\r
-\r
-#if 0\r
-#define SENSOR_DEBUG_TYPE SENSOR_TYPE_ACCEL\r
-#define DBG(x...) if(sensor->pdata->type == SENSOR_DEBUG_TYPE) printk(x)\r
-#else\r
-#define DBG(x...)\r
-#endif\r
-\r
-\r
-#define MMA8451_DEVID 0x1a\r
-#define MMA8452_DEVID 0x2a\r
-#define MMA8453_DEVID 0x3a\r
-\r
-#define MMA8452_ENABLE 1\r
-\r
-\r
-/****************operate according to sensor chip:start************/\r
-\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
- //register setting according to chip datasheet \r
- if(enable)\r
- { \r
- status = MMA8452_ENABLE; //mma8452\r
- sensor->ops->ctrl_data |= status; \r
- }\r
- else\r
- {\r
- status = ~MMA8452_ENABLE; //mma8452\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
-static int sensor_init(struct i2c_client *client)\r
-{\r
- int tmp;\r
- int ret = 0;\r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- \r
- ret = sensor->ops->active(client,0,0);\r
- if(ret)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return ret;\r
- }\r
- \r
- sensor->status_cur = SENSOR_OFF;\r
-\r
- /* disable FIFO FMODE = 0*/\r
- ret = sensor_write_reg(client,MMA8452_REG_F_SETUP,0);\r
- DBG("%s: MMA8452_REG_F_SETUP:%x\n",__func__, sensor_read_reg(client,MMA8452_REG_F_SETUP));\r
-\r
- /* set full scale range to 2g */\r
- ret = sensor_write_reg(client,MMA8452_REG_XYZ_DATA_CFG,0);\r
- DBG("%s: MMA8452_REG_XYZ_DATA_CFG:%x\n",__func__, sensor_read_reg(client,MMA8452_REG_XYZ_DATA_CFG));\r
-\r
- /* set bus 8bit/14bit(FREAD = 1,FMODE = 0) ,data rate*/\r
- tmp = (MMA8452_RATE_12P5<< MMA8452_RATE_SHIFT) | FREAD_MASK;\r
- ret = sensor_write_reg(client,MMA8452_REG_CTRL_REG1,tmp);\r
-\r
- sensor->ops->ctrl_data = tmp;\r
- \r
- DBG("mma8452 MMA8452_REG_CTRL_REG1:%x\n",sensor_read_reg(client,MMA8452_REG_CTRL_REG1));\r
- \r
- DBG("mma8452 MMA8452_REG_SYSMOD:%x\n",sensor_read_reg(client,MMA8452_REG_SYSMOD));\r
-\r
- ret = sensor_write_reg(client,MMA8452_REG_CTRL_REG3,5);\r
- DBG("mma8452 MMA8452_REG_CTRL_REG3:%x\n",sensor_read_reg(client,MMA8452_REG_CTRL_REG3));\r
- \r
- ret = sensor_write_reg(client,MMA8452_REG_CTRL_REG4,1);\r
- DBG("mma8452 MMA8452_REG_CTRL_REG4:%x\n",sensor_read_reg(client,MMA8452_REG_CTRL_REG4));\r
-\r
- ret = sensor_write_reg(client,MMA8452_REG_CTRL_REG5,1);\r
- DBG("mma8452 MMA8452_REG_CTRL_REG5:%x\n",sensor_read_reg(client,MMA8452_REG_CTRL_REG5)); \r
-\r
- DBG("mma8452 MMA8452_REG_SYSMOD:%x\n",sensor_read_reg(client,MMA8452_REG_SYSMOD));\r
-\r
- return ret;\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
- //int precision = sensor->ops->precision;\r
- switch (sensor->devid) {\r
- case MMA8451_DEVID: \r
- swap(high_byte,low_byte);\r
- result = ((int)high_byte << (MMA8451_PRECISION-8)) \r
- | ((int)low_byte >> (16-MMA8451_PRECISION));\r
- if (result < MMA8451_BOUNDARY)\r
- result = result* MMA8451_GRAVITY_STEP;\r
- else\r
- result = ~( ((~result & (0x7fff>>(16-MMA8451_PRECISION)) ) + 1) \r
- * MMA8451_GRAVITY_STEP) + 1;\r
- break;\r
-\r
- case MMA8452_DEVID: \r
- swap(high_byte,low_byte);\r
- result = ((int)high_byte << (MMA8452_PRECISION-8)) \r
- | ((int)low_byte >> (16-MMA8452_PRECISION));\r
- if (result < MMA8452_BOUNDARY)\r
- result = result* MMA8452_GRAVITY_STEP;\r
- else\r
- result = ~( ((~result & (0x7fff>>(16-MMA8452_PRECISION)) ) + 1) \r
- * MMA8452_GRAVITY_STEP) + 1;\r
- break;\r
- \r
- case MMA8453_DEVID: \r
- swap(high_byte,low_byte);\r
- result = ((int)high_byte << (MMA8453_PRECISION-8)) \r
- | ((int)low_byte >> (16-MMA8453_PRECISION));\r
- if (result < MMA8453_BOUNDARY)\r
- result = result* MMA8453_GRAVITY_STEP;\r
- else\r
- result = ~( ((~result & (0x7fff>>(16-MMA8453_PRECISION)) ) + 1) \r
- * MMA8453_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
- /* 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
-\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
-\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
-\r
-struct sensor_operate gsensor_ops = {\r
- .name = "mma8452",\r
- .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct\r
- .id_i2c = ACCEL_ID_MMA845X, //i2c id number\r
- .read_reg = MMA8452_REG_X_OUT_MSB, //read data\r
- .read_len = 6, //data length\r
- .id_reg = MMA8452_REG_WHO_AM_I, //read device id from this register\r
- .id_data = MMA8452_DEVID, //device id\r
- .precision = MMA8452_PRECISION, //12 bit\r
- .ctrl_reg = MMA8452_REG_CTRL_REG1, //enable or disable \r
- .int_status_reg = MMA8452_REG_INTSRC, //intterupt status register\r
- .range = {-MMA845X_RANGE,MMA845X_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
-/****************operate according to sensor chip:end************/\r
-\r
-//function name should not be changed\r
-struct sensor_operate *gsensor_get_ops(void)\r
-{\r
- return &gsensor_ops;\r
-}\r
-\r
-EXPORT_SYMBOL(gsensor_get_ops);\r
-\r
-static int __init gsensor_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
- printk("%s\n",__func__);\r
- return result;\r
-}\r
-\r
-static void __exit gsensor_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_init);\r
-module_exit(gsensor_exit);\r
-\r
-\r
-\r
+/* drivers/input/sensors/access/mma8452.c
+ *
+ * Copyright (C) 2012-2015 ROCKCHIP.
+ * Author: luowei <lw@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 <mach/gpio.h>
+#include <mach/board.h>
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
+#include <linux/mma8452.h>
+#include <linux/sensor-dev.h>
+
+#if 0
+#define SENSOR_DEBUG_TYPE SENSOR_TYPE_ACCEL
+#define DBG(x...) if(sensor->pdata->type == SENSOR_DEBUG_TYPE) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+
+#define MMA8451_DEVID 0x1a
+#define MMA8452_DEVID 0x2a
+#define MMA8453_DEVID 0x3a
+
+#define MMA8452_ENABLE 1
+
+struct i2c_client *this_client=NULL;
+static struct class *sensor_class = NULL;
+
+static ssize_t sensor_setoratitention(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int i=0;
+ char gsensororatation[20];
+
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(this_client);
+ struct sensor_platform_data *pdata = sensor->pdata;
+
+
+ char *p = strstr(buf,"gsensor");
+ int start = strcspn(p,"{");
+ int end = strcspn(p,"}");
+
+ strncpy(gsensororatation,p+start,end-start+1);
+ char *tmp=gsensororatation;
+
+
+ while(strncmp(tmp,"}",1)!=0)
+ {
+ if((strncmp(tmp,",",1)==0)||(strncmp(tmp,"{",1)==0))
+ {
+
+ tmp++;
+ continue;
+ }
+ else if(strncmp(tmp,"-",1)==0)
+ {
+ pdata->orientation[i++]=-1;
+ DBG("i=%d,data=%d\n",i,pdata->orientation[i]);
+ tmp++;
+ }
+ else
+ {
+ pdata->orientation[i++]=tmp[0]-48;
+ DBG("----i=%d,data=%d\n",i,pdata->orientation[i]);
+ }
+ tmp++;
+
+
+ }
+
+ for(i=0;i<9;i++)
+ DBG("i=%d gsensor_info=%d\n",i,pdata->orientation[i]);
+ return 0;
+
+}
+
+static CLASS_ATTR(oratiention, 0777, NULL,sensor_setoratitention);
+
+static int sensor_sys_init(void)
+{
+ int ret ;
+ sensor_class = class_create(THIS_MODULE, "gsensor");
+ ret = class_create_file(sensor_class, &class_attr_oratiention);
+ if (ret)
+ {
+ printk("Fail to creat class oratiention.\n");
+ }
+ return 0;
+}
+
+/****************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);
+
+ //register setting according to chip datasheet
+ if(enable)
+ {
+ status = MMA8452_ENABLE; //mma8452
+ sensor->ops->ctrl_data |= status;
+ }
+ else
+ {
+ status = ~MMA8452_ENABLE; //mma8452
+ 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)
+{
+ int tmp;
+ int ret = 0;
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+
+ ret = sensor->ops->active(client,0,0);
+ if(ret)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return ret;
+ }
+
+ this_client=client;
+
+ sensor->status_cur = SENSOR_OFF;
+
+ /* disable FIFO FMODE = 0*/
+ ret = sensor_write_reg(client,MMA8452_REG_F_SETUP,0);
+ DBG("%s: MMA8452_REG_F_SETUP:%x\n",__func__, sensor_read_reg(client,MMA8452_REG_F_SETUP));
+
+ /* set full scale range to 2g */
+ ret = sensor_write_reg(client,MMA8452_REG_XYZ_DATA_CFG,0);
+ DBG("%s: MMA8452_REG_XYZ_DATA_CFG:%x\n",__func__, sensor_read_reg(client,MMA8452_REG_XYZ_DATA_CFG));
+
+ /* set bus 8bit/14bit(FREAD = 1,FMODE = 0) ,data rate*/
+ tmp = (MMA8452_RATE_12P5<< MMA8452_RATE_SHIFT) | FREAD_MASK;
+ ret = sensor_write_reg(client,MMA8452_REG_CTRL_REG1,tmp);
+
+ sensor->ops->ctrl_data = tmp;
+
+ DBG("mma8452 MMA8452_REG_CTRL_REG1:%x\n",sensor_read_reg(client,MMA8452_REG_CTRL_REG1));
+
+ DBG("mma8452 MMA8452_REG_SYSMOD:%x\n",sensor_read_reg(client,MMA8452_REG_SYSMOD));
+
+ ret = sensor_write_reg(client,MMA8452_REG_CTRL_REG3,5);
+ DBG("mma8452 MMA8452_REG_CTRL_REG3:%x\n",sensor_read_reg(client,MMA8452_REG_CTRL_REG3));
+
+ ret = sensor_write_reg(client,MMA8452_REG_CTRL_REG4,1);
+ DBG("mma8452 MMA8452_REG_CTRL_REG4:%x\n",sensor_read_reg(client,MMA8452_REG_CTRL_REG4));
+
+ ret = sensor_write_reg(client,MMA8452_REG_CTRL_REG5,1);
+ DBG("mma8452 MMA8452_REG_CTRL_REG5:%x\n",sensor_read_reg(client,MMA8452_REG_CTRL_REG5));
+
+ DBG("mma8452 MMA8452_REG_SYSMOD:%x\n",sensor_read_reg(client,MMA8452_REG_SYSMOD));
+
+ sensor_sys_init();
+
+ return ret;
+}
+
+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);
+ //int precision = sensor->ops->precision;
+ switch (sensor->devid) {
+ case MMA8451_DEVID:
+ swap(high_byte,low_byte);
+ result = ((int)high_byte << (MMA8451_PRECISION-8))
+ | ((int)low_byte >> (16-MMA8451_PRECISION));
+ if (result < MMA8451_BOUNDARY)
+ result = result* MMA8451_GRAVITY_STEP;
+ else
+ result = ~( ((~result & (0x7fff>>(16-MMA8451_PRECISION)) ) + 1)
+ * MMA8451_GRAVITY_STEP) + 1;
+ break;
+
+ case MMA8452_DEVID:
+ swap(high_byte,low_byte);
+ result = ((int)high_byte << (MMA8452_PRECISION-8))
+ | ((int)low_byte >> (16-MMA8452_PRECISION));
+ if (result < MMA8452_BOUNDARY)
+ result = result* MMA8452_GRAVITY_STEP;
+ else
+ result = ~( ((~result & (0x7fff>>(16-MMA8452_PRECISION)) ) + 1)
+ * MMA8452_GRAVITY_STEP) + 1;
+ break;
+
+ case MMA8453_DEVID:
+ swap(high_byte,low_byte);
+ result = ((int)high_byte << (MMA8453_PRECISION-8))
+ | ((int)low_byte >> (16-MMA8453_PRECISION));
+ if (result < MMA8453_BOUNDARY)
+ result = result* MMA8453_GRAVITY_STEP;
+ else
+ result = ~( ((~result & (0x7fff>>(16-MMA8453_PRECISION)) ) + 1)
+ * MMA8453_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);
+
+ /* 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);
+
+ //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_ops = {
+ .name = "mma8452",
+ .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct
+ .id_i2c = ACCEL_ID_MMA845X, //i2c id number
+ .read_reg = MMA8452_REG_X_OUT_MSB, //read data
+ .read_len = 6, //data length
+ .id_reg = MMA8452_REG_WHO_AM_I, //read device id from this register
+ .id_data = MMA8452_DEVID, //device id
+ .precision = MMA8452_PRECISION, //12 bit
+ .ctrl_reg = MMA8452_REG_CTRL_REG1, //enable or disable
+ .int_status_reg = MMA8452_REG_INTSRC, //intterupt status register
+ .range = {-MMA845X_RANGE,MMA845X_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
+struct sensor_operate *gsensor_get_ops(void)
+{
+ return &gsensor_ops;
+}
+
+EXPORT_SYMBOL(gsensor_get_ops);
+
+static int __init gsensor_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);
+ printk("%s\n",__func__);
+ return result;
+}
+
+static void __exit gsensor_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_init);
+module_exit(gsensor_exit);
+
+
+
projects / firefly-linux-kernel-4.4.55.git / commitdiff