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add gsensor orientation node for factorytool

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This commit is contained in:
ywj
2012-08-16 14:25:47 +08:00
parent d18a181849
commit 0f08408447
3 changed files with 1121 additions and 919 deletions
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602
drivers/input/sensors/accel/kxtik.c
View File

@@ -1,268 +1,334 @@
/* 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
/****************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;
}
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;
}
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);
/* <20><><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. */
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
*
* 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);
/* <20><><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. */
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);

757
drivers/input/sensors/accel/lis3dh.c
View File

@@ -1,345 +1,412 @@
/* 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;
};
/****************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;
}
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;
}
}
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);
/* <20><><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. */
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/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);
/* <20><><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. */
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);

681
drivers/input/sensors/accel/mma8452.c
View File

@@ -1,306 +1,375 @@
/* 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
/****************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;
}
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));
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);
/* <20><><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. */
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);
/* 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);
/* <20><><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. */
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);