/* drivers/input/sensors/access/sc7a20.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 <linux/uaccess.h>
|
#include <asm/atomic.h>
|
#include <linux/delay.h>
|
#include <linux/input.h>
|
#include <linux/workqueue.h>
|
#include <linux/freezer.h>
|
#ifdef CONFIG_HAS_EARLYSUSPEND
|
#include <linux/earlysuspend.h>
|
#endif
|
#include <linux/sensor-dev.h>
|
|
#define SC7A20_ENABLE 1
|
#define SC7A20_XOUT_L 0x28
|
#define SC7A20_XOUT_H 0x29
|
#define SC7A20_YOUT_L 0x2A
|
#define SC7A20_YOUT_H 0x2B
|
#define SC7A20_ZOUT_L 0x2C
|
#define SC7A20_ZOUT_H 0x2D
|
#define SC7A20_MODE 0x20
|
#define SC7A20_MODE1 0x21
|
#define SC7A20_MODE2 0x22
|
#define SC7A20_MODE3 0x23
|
#define SC7A20_BOOT 0x24
|
#define SC7A20_STATUS 0x27
|
#define SC7A20_50HZ 0x40
|
#define SC7A20_100HZ 0x50
|
#define SC7A20_200HZ 0x60
|
#define SC7A20_400HZ 0x70
|
#define SC7A20_RANGE 32768
|
|
|
|
#define CALIBRATION_NUM 20//40
|
#define AXIS_X_Y_RANGE_LIMIT 200
|
#define AXIS_X_Y_AVG_LIMIT 400
|
#define AXIS_Z_RANGE 200
|
#define AXIS_Z_DFT_G 1000
|
#define GOTO_CALI 100
|
#define FAILTO_CALI 101
|
/* LIS3DH */
|
#define SC7A20_PRECISION 12
|
#define SC7A20_BOUNDARY (0x1 << (SC7A20_PRECISION - 1))
|
#define SC7A20_GRAVITY_STEP (SC7A20_RANGE / SC7A20_BOUNDARY)
|
|
#define SC7A20_COUNT_AVERAGE 2
|
|
//#define CFG_GSENSOR_CALIBFILE "/data/data/com.actions.sensor.calib/files/gsensor_calib.txt"
|
/*noCreateAttr:the initial is 1-->no create attr. if created, change noCreateAttr to 0.*/
|
static int noCreateAttr = 1;
|
|
|
|
|
//static int sc7a20_acc_get_data( int *xyz);
|
|
struct SC7A20_acc{
|
int x;
|
int y;
|
int z;
|
} ;
|
|
static struct SC7A20_acc offset1;
|
//static int calibrated;
|
static struct i2c_client *sc7a20_client;
|
|
struct sensor_axis_average {
|
long x_average;
|
long y_average;
|
long z_average;
|
int count;
|
};
|
|
struct Cali_Data {
|
//mis p and n
|
unsigned char xpmis; //x axis positive mismatch to write
|
unsigned char xnmis; //x axis negtive mismatch to write
|
unsigned char ypmis;
|
unsigned char ynmis;
|
unsigned char zpmis;
|
unsigned char znmis;
|
//off p and n
|
unsigned char xpoff; //x axis positive offset to write
|
unsigned char xnoff; //x axis negtive offset to write
|
unsigned char ypoff;
|
unsigned char ynoff;
|
unsigned char zpoff;
|
unsigned char znoff;
|
//mid mis and off
|
unsigned char xmmis; //x axis middle mismatch to write
|
unsigned char ymmis; //y axis middle mismatch to write
|
unsigned char zmmis; //z axis middle mismatch to write
|
unsigned char xmoff; //x axis middle offset to write
|
unsigned char ymoff; //y axis middle offset to write
|
unsigned char zmoff; //z axis middle offset to write
|
//output p and n
|
signed int xpoutput; //x axis output of positive mismatch
|
signed int xnoutput; //x axis output of negtive mismatch
|
signed int ypoutput;
|
signed int ynoutput;
|
signed int zpoutput;
|
signed int znoutput;
|
//output
|
signed int xfoutput; //x axis the best or the temporary output
|
signed int yfoutput; //y axis the best or the temporary output
|
signed int zfoutput; //z axis the best or the temporary output
|
//final and temp flag
|
unsigned char xfinalf; //x axis final flag:if 1,calibration finished
|
unsigned char yfinalf; //y axis final flag:if 1,calibration finished
|
unsigned char zfinalf; //z axis final flag:if 1,calibration finished
|
unsigned char xtempf; //x axis temp flag:if 1,the step calibration finished
|
unsigned char ytempf; //y axis temp flag:if 1,the step calibration finished
|
unsigned char ztempf; //z axis temp flag:if 1,the step calibration finished
|
|
unsigned char xaddmis; //x axis mismtach register address
|
unsigned char yaddmis; //y axis mismtach register address
|
unsigned char zaddmis; //z axis mismtach register address
|
unsigned char xaddoff; //x axis offset register address
|
unsigned char yaddoff; //y axis offset register address
|
unsigned char zaddoff; //z axis offset register address
|
|
|
unsigned char (*MisDataSpaceConvert)(unsigned char continuous); //mismatch space convert function pointer
|
unsigned char (*OffDataSpaceConvert)(unsigned char continuous); //offset space convert function pointer
|
|
|
|
|
|
|
};
|
|
|
|
static struct sensor_axis_average axis_average;
|
|
static unsigned char Read_Reg_sc7a20(unsigned char reg)
|
{
|
char buffer[3]={0};
|
*buffer = reg;
|
sensor_rx_data(sc7a20_client, buffer,1);
|
return buffer[0];
|
}
|
|
|
static signed char Read_Output(char reg)
|
{
|
|
char buffer[3] = {0};
|
signed char acc_buf[6];
|
int index = 0;
|
int ret = 0;
|
|
|
while(1)
|
{
|
|
msleep(15);
|
*buffer = SC7A20_STATUS;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
|
if( (buffer[0] & 0x08) != 0 )
|
{
|
break;
|
}
|
//msleep(1);
|
|
index++;
|
|
if(index > 40)
|
break;
|
|
}
|
|
|
*buffer = SC7A20_XOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
*buffer = SC7A20_XOUT_H;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
acc_buf[1] = buffer[0];
|
|
|
*buffer = SC7A20_YOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
*buffer = SC7A20_YOUT_H;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
acc_buf[3] = buffer[0];
|
|
*buffer = SC7A20_ZOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
*buffer = SC7A20_ZOUT_H;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
acc_buf[5] = buffer[0];
|
|
|
if(reg == 0x29)
|
{
|
return acc_buf[1];
|
}
|
else if(reg == 0x2b)
|
{
|
return acc_buf[3];
|
}
|
else if(reg == 0x2d)
|
{
|
return acc_buf[5];
|
}
|
else
|
return 0;
|
|
|
}
|
|
static void Read_Output_3axis(unsigned char *acc_buf)
|
{
|
char buffer[3] = {0};
|
int index = 0;
|
int ret = 0;
|
while(1){
|
msleep(20);
|
*buffer = SC7A20_STATUS;
|
//ret = sensor_rx_data(sc7a20_client, buffer,1);
|
buffer[0] = Read_Reg_sc7a20(0x27);
|
if( (buffer[0] & 0x08) != 0 ){break;}
|
index++;
|
if(index > 40)break;
|
}
|
//6 register data be read out
|
*buffer = SC7A20_XOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
acc_buf[0] = buffer[0];
|
*buffer = SC7A20_XOUT_H;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
acc_buf[1] = buffer[0];
|
|
*buffer = SC7A20_YOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
acc_buf[2] = buffer[0];
|
*buffer = SC7A20_YOUT_H;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
acc_buf[3] = buffer[0];
|
|
*buffer = SC7A20_ZOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
acc_buf[4] = buffer[0];
|
*buffer = SC7A20_ZOUT_H;
|
ret = sensor_rx_data(sc7a20_client, buffer,1);
|
acc_buf[5] = buffer[0];
|
}
|
|
static void Write_Input(char addr, char thedata)
|
{
|
int result;
|
result = sensor_write_reg(sc7a20_client, addr, thedata);
|
}
|
|
|
|
static void tilt_3axis_mtp(signed int x,signed int y,signed int z){
|
char buffer[6] = {0};
|
unsigned char buffer0[6] = {0};
|
unsigned char buffer1[6] = {0};
|
signed char mtpread[3]={0};
|
signed int xoutp,youtp,zoutp;
|
signed int xoutpt,youtpt,zoutpt;
|
signed char xtilt,ytilt,ztilt;
|
xoutp=youtp=zoutp=0;
|
xoutpt=youtpt=zoutpt=0;
|
xtilt=ytilt=ztilt=0;
|
Read_Output_3axis(buffer0);
|
Read_Output_3axis(buffer1);
|
//calculate the tilt with 12 ADC data
|
xoutpt = ((signed int)((buffer1[1]<<8)|buffer1[0]))>>4;
|
youtpt = ((signed int)((buffer1[3]<<8)|buffer1[2]))>>4;
|
zoutpt = ((signed int)((buffer1[5]<<8)|buffer1[4]))>>4;
|
//with relative value
|
xoutp = xoutpt-x*16;
|
youtp = youtpt-y*16;
|
zoutp = zoutpt-z*16;
|
|
|
//read out the tilt value in mtp to calculate the new
|
*buffer = 0x10;
|
sensor_rx_data(sc7a20_client, buffer,1);
|
mtpread[0]=(signed char)buffer[0];
|
|
*buffer = 0x11;
|
sensor_rx_data(sc7a20_client, buffer,1);
|
mtpread[1]=(signed char)buffer[0];
|
|
*buffer = 0x12;
|
sensor_rx_data(sc7a20_client, buffer,1);
|
mtpread[2]=(signed char)buffer[0];
|
|
|
// mtpread[0]= (signed char)Read_One_Byte(0x3a, 0x10);
|
// mtpread[1]= (signed char)Read_One_Byte(0x3a, 0x11);
|
// mtpread[2]= (signed char)Read_One_Byte(0x3a, 0x12);
|
|
//calculate the new tilt mtp value
|
xtilt=(signed char)(xoutp/8)+ mtpread[0];
|
ytilt=(signed char)(youtp/8)+ mtpread[1];
|
ztilt=(signed char)(zoutp/8)+ mtpread[2];
|
|
|
|
|
|
//write the new into mtp
|
Write_Input(0x10,xtilt);
|
Write_Input(0x11,ytilt);
|
Write_Input(0x12,ztilt);
|
|
|
}
|
|
|
//正向
|
//255-0 map to 7f-0-80-ff
|
//
|
//255 map to 127(0x7f)
|
//254 map to 126(0x7e)
|
//. map to .
|
//129 map to 001(0x01)
|
//128 map to 000(0x00)
|
//127 map to 128(0x80)
|
//126 map to 129(0x81)
|
//. map to .
|
//001 map to 254(0xfe)
|
//000 map to 255(0xff)
|
static unsigned char forword_MisDataSpaceConvert(unsigned char continuous)
|
{
|
if(continuous >= 128)
|
return continuous - 128;
|
else
|
return 255 - continuous;
|
}
|
|
//反向
|
//255-0 map to ff-80-00-7f
|
//
|
//255 map to 255(0xff)
|
//254 map to 254(0xfe)
|
//. map to .
|
//129 map to 129(0x81)
|
//128 map to 128(0x80)
|
|
//127 map to 0(0x00)
|
//126 map to 1(0x01)
|
//. map to .
|
//001 map to 126(0x7e)
|
//000 map to 127(0x7f)
|
static unsigned char reverse_MisDataSpaceConvert(unsigned char continuous)
|
{
|
if(continuous >= 128)
|
return continuous;
|
else
|
return 127 - continuous;
|
}
|
|
|
|
|
//reverse
|
//7f-0 map to 0-7f
|
//
|
|
static unsigned char reverse_OffDataSpaceConvert(unsigned char continuous)
|
{
|
return 127 - continuous;
|
}
|
|
//forword
|
//7f-0 map to 0-7f
|
//
|
|
static unsigned char forword_OffDataSpaceConvert(unsigned char continuous)
|
{
|
return continuous;
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void check_output_set_finalflag(struct Cali_Data *pcalidata,unsigned char err){
|
|
if(abs(pcalidata->xfoutput) < err){
|
//printk("line:%d Xcali finish!Final=%d\n",__LINE__,pcalidata->xfoutput);
|
pcalidata->xfinalf=1;
|
}
|
if(abs(pcalidata->yfoutput) < err){
|
//printk("line:%d Xcali finish!Final=%d\n",__LINE__,pcalidata->yfoutput);
|
pcalidata->yfinalf=1;
|
}
|
if(abs(pcalidata->zfoutput) < err){
|
//printk("line:%d Xcali finish!Final=%d\n",__LINE__,pcalidata->zfoutput);
|
pcalidata->zfinalf=1;
|
}
|
|
}
|
|
|
|
|
//set the tempflag xtempf-ytempf-ztempf upto the finalflag
|
static void check_finalflag_set_tempflag(struct Cali_Data *pcalidata){
|
if(pcalidata->xfinalf){pcalidata->xtempf=1;}
|
if(pcalidata->yfinalf){pcalidata->ytempf=1;}
|
if(pcalidata->zfinalf){pcalidata->ztempf=1;}
|
}
|
|
|
//return ornot,upto xfinalf-yfinalf-zfinalf
|
static unsigned char check_flag_is_return(struct Cali_Data *pcalidata){
|
if((pcalidata->xfinalf) && (pcalidata->yfinalf) && (pcalidata->zfinalf))
|
{
|
//printk("line:%d Allcali finish!\n",__LINE__);
|
return 1;//xyz cali ok
|
}
|
else return 0;
|
}
|
|
|
|
//updata middle mismatch register with the new mismatch
|
static void updata_midmis_address(struct Cali_Data *pcalidata){
|
if(pcalidata->xtempf==0){
|
pcalidata->xmmis=(unsigned char)(((unsigned int)(pcalidata->xpmis) + (unsigned int)(pcalidata->xnmis))/2);
|
pcalidata->MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(pcalidata->xaddmis, (*(pcalidata->MisDataSpaceConvert))(pcalidata->xmmis));
|
}
|
if(pcalidata->ytempf==0){
|
pcalidata->ymmis=(unsigned char)(((unsigned int)(pcalidata->ypmis) + (unsigned int)(pcalidata->ynmis))/2);
|
pcalidata->MisDataSpaceConvert = forword_MisDataSpaceConvert;
|
Write_Input(pcalidata->yaddmis, (*(pcalidata->MisDataSpaceConvert))(pcalidata->ymmis));
|
}
|
if(pcalidata->ztempf==0){
|
pcalidata->zmmis=(unsigned char)(((unsigned int)(pcalidata->zpmis) + (unsigned int)(pcalidata->znmis))/2);
|
pcalidata->MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(pcalidata->zaddmis, (*(pcalidata->MisDataSpaceConvert))(pcalidata->zmmis));
|
}
|
}
|
|
|
//updata middle offset register with the new offset
|
static void updata_midoff_address(struct Cali_Data *pcalidata){
|
if(pcalidata->xtempf==0){
|
pcalidata->xmoff=(unsigned char)(((unsigned int)(pcalidata->xpoff) + (unsigned int)(pcalidata->xnoff))/2);
|
pcalidata->OffDataSpaceConvert = reverse_OffDataSpaceConvert;
|
Write_Input(pcalidata->xaddoff, (*(pcalidata->OffDataSpaceConvert))(pcalidata->xmoff));
|
}
|
if(pcalidata->ytempf==0){
|
pcalidata->ymoff=(unsigned char)(((unsigned int)(pcalidata->ypoff) + (unsigned int)(pcalidata->ynoff))/2);
|
pcalidata->OffDataSpaceConvert = forword_OffDataSpaceConvert;
|
Write_Input(pcalidata->yaddoff, (*(pcalidata->OffDataSpaceConvert))(pcalidata->ymoff));
|
}
|
if(pcalidata->ztempf==0){
|
pcalidata->zmoff=(unsigned char)(((unsigned int)(pcalidata->zpoff) + (unsigned int)(pcalidata->znoff))/2);
|
pcalidata->OffDataSpaceConvert = forword_OffDataSpaceConvert;
|
Write_Input(pcalidata->zaddoff, (*(pcalidata->OffDataSpaceConvert))(pcalidata->zmoff));
|
}
|
}
|
|
|
|
|
static void updata_mmis_pnfoutput_set_tempflag( struct Cali_Data *pcalidata,
|
unsigned char *buf,
|
signed int xrel,
|
signed int yrel,
|
signed int zrel){
|
//output 2 struct data
|
pcalidata->xfoutput=(signed int)((signed char)buf[1])-xrel;
|
pcalidata->yfoutput=(signed int)((signed char)buf[3])-yrel;
|
pcalidata->zfoutput=(signed int)((signed char)buf[5])-zrel;
|
|
if(abs(pcalidata->xfoutput)<25)pcalidata->xtempf=1;
|
if(abs(pcalidata->yfoutput)<25)pcalidata->ytempf=1;
|
if(abs(pcalidata->zfoutput)<25)pcalidata->ztempf=1;
|
|
if(pcalidata->xtempf==0)
|
{
|
if(pcalidata->xfoutput>0){
|
pcalidata->xpoutput = pcalidata->xfoutput;
|
pcalidata->xpmis = pcalidata->xmmis;
|
}
|
else{
|
pcalidata->xnoutput = pcalidata->xfoutput;
|
pcalidata->xnmis = pcalidata->xmmis;
|
}
|
}
|
|
if(pcalidata->ytempf==0)
|
{
|
if(pcalidata->yfoutput>0){
|
pcalidata->ypoutput = pcalidata->yfoutput;
|
pcalidata->ypmis = pcalidata->ymmis;
|
}
|
else{
|
pcalidata->ynoutput = pcalidata->yfoutput;
|
pcalidata->ynmis = pcalidata->ymmis;
|
}
|
}
|
|
if(pcalidata->ztempf==0)
|
{
|
if(pcalidata->zfoutput>0){
|
pcalidata->zpoutput = pcalidata->zfoutput;
|
pcalidata->zpmis = pcalidata->zmmis;
|
}
|
else{
|
pcalidata->znoutput = pcalidata->zfoutput;
|
pcalidata->znmis = pcalidata->zmmis;
|
}
|
}
|
}
|
|
|
|
static void updata_moff_pnfoutput_set_tempflag( struct Cali_Data *pcalidata,
|
unsigned char *buf,
|
signed int xrel,
|
signed int yrel,
|
signed int zrel){
|
//output 2 struct data
|
pcalidata->xfoutput=(signed int)((signed char)buf[1])-xrel;
|
pcalidata->yfoutput=(signed int)((signed char)buf[3])-yrel;
|
pcalidata->zfoutput=(signed int)((signed char)buf[5])-zrel;
|
|
if(abs(pcalidata->xfoutput)<3)pcalidata->xtempf=1;
|
if(abs(pcalidata->yfoutput)<3)pcalidata->ytempf=1;
|
if(abs(pcalidata->zfoutput)<3)pcalidata->ztempf=1;
|
|
if(pcalidata->xtempf==0)
|
{
|
if(pcalidata->xfoutput>0){
|
pcalidata->xpoutput = pcalidata->xfoutput;
|
pcalidata->xpoff = pcalidata->xmoff;
|
}
|
else{
|
pcalidata->xnoutput = pcalidata->xfoutput;
|
pcalidata->xnoff = pcalidata->xmoff;
|
}
|
}
|
|
if(pcalidata->ytempf==0)
|
{
|
if(pcalidata->yfoutput>0){
|
pcalidata->ypoutput = pcalidata->yfoutput;
|
pcalidata->ypoff = pcalidata->ymoff;
|
}
|
else{
|
pcalidata->ynoutput = pcalidata->yfoutput;
|
pcalidata->ynoff = pcalidata->ymoff;
|
}
|
}
|
|
if(pcalidata->ztempf==0)
|
{
|
if(pcalidata->zfoutput>0){
|
pcalidata->zpoutput = pcalidata->zfoutput;
|
pcalidata->zpoff = pcalidata->zmoff;
|
}
|
else{
|
pcalidata->znoutput = pcalidata->zfoutput;
|
pcalidata->znoff = pcalidata->zmoff;
|
}
|
}
|
}
|
|
|
|
static int auto_calibration_instant_sc7a20(signed int x, signed int y, signed int z){
|
|
|
unsigned char count=0,cyclecount=0;
|
unsigned char acc_buf[6];
|
|
struct Cali_Data calidata={0};
|
|
|
//===========================================================================
|
//===========================================================================
|
//step0=initialization
|
calidata.xaddmis = 0x40;
|
calidata.yaddmis = 0x41;
|
calidata.zaddmis = 0x42;
|
calidata.xaddoff = 0x47;
|
calidata.yaddoff = 0x48;
|
calidata.zaddoff = 0x49;
|
#ifdef PRINT
|
printf("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(UINT)calidata.xfinalf,(UINT)calidata.xtempf,
|
(UINT)calidata.yfinalf,(UINT)calidata.ytempf,
|
(UINT)calidata.zfinalf,(UINT)calidata.ztempf
|
);
|
#endif
|
|
|
|
|
//===========================================================================
|
//===========================================================================
|
//step1=if output is ok?
|
Read_Output_3axis(acc_buf);
|
calidata.xfoutput=(signed int)((signed char)acc_buf[1])-x;
|
calidata.yfoutput=(signed int)((signed char)acc_buf[3])-y;
|
calidata.zfoutput=(signed int)((signed char)acc_buf[5])-z;
|
check_output_set_finalflag(&calidata,2);
|
if(check_flag_is_return(&calidata)){
|
printk("step1:=file=%s,line=%d\n",__FILE__,__LINE__);
|
return 1;
|
}
|
#ifdef PRINT
|
printf("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(UINT)calidata.xfinalf,(UINT)calidata.xtempf,
|
(UINT)calidata.yfinalf,(UINT)calidata.ytempf,
|
(UINT)calidata.zfinalf,(UINT)calidata.ztempf
|
);
|
#endif
|
|
|
|
|
|
//===========================================================================
|
//===========================================================================
|
//step2=can cali?
|
//max output reasonable?
|
// calidata.zfinalf=1;
|
if(calidata.xfinalf==0){
|
Write_Input(calidata.xaddoff, 0x3f);//cali mis under off=0x3f
|
Write_Input(0x10, 0); //tilt clear
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.xaddmis, (*(calidata.MisDataSpaceConvert))(255)); // x mis to max
|
}
|
if(calidata.yfinalf==0){
|
Write_Input(calidata.yaddoff, 0x3f);//cali mis under off=0x3f
|
Write_Input(0x11, 0); //tilt clear
|
calidata.MisDataSpaceConvert = forword_MisDataSpaceConvert;
|
Write_Input(calidata.yaddmis, (*(calidata.MisDataSpaceConvert))(255)); // y mis to max
|
}
|
if(calidata.zfinalf==0){
|
Write_Input(calidata.zaddoff, 0x3f);//cali mis under off=0x3f
|
Write_Input(0x12, 0); //tilt clear
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.zaddmis, (*(calidata.MisDataSpaceConvert))(255)); // z mis to max
|
}
|
|
Read_Output_3axis(acc_buf);
|
calidata.xpoutput=calidata.xfoutput=(signed int)((signed char)acc_buf[1])-x;
|
calidata.ypoutput=calidata.yfoutput=(signed int)((signed char)acc_buf[3])-y;
|
calidata.zpoutput=calidata.zfoutput=(signed int)((signed char)acc_buf[5])-z;
|
printk("step 2 xnoutput = %d ynoutput = %d znoutput = %d \n",calidata.xnoutput,calidata.ynoutput,calidata.znoutput);
|
if((calidata.xpoutput<-25)||(calidata.ypoutput<-25)||(calidata.zpoutput<-25)){
|
printk("step2:=file=%s,line=%d\n",__FILE__,__LINE__);
|
sensor_write_reg(sc7a20_client,0x13,0x01);//allen
|
Write_Input(0x1e, 0x15); //保存校准寄存器的修改
|
mdelay(300);
|
Write_Input(0x1e, 0);
|
return 0;
|
}//if the max output is smaller than -25,then errs
|
|
//min output reasonable?
|
if(calidata.xfinalf==0){
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.xaddmis, (*(calidata.MisDataSpaceConvert))(0)); // x mis to min
|
}
|
if(calidata.yfinalf==0){
|
calidata.MisDataSpaceConvert = forword_MisDataSpaceConvert;
|
Write_Input(calidata.yaddmis, (*(calidata.MisDataSpaceConvert))(0)); // y mis to min
|
}
|
if(calidata.zfinalf==0){
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.zaddmis, (*(calidata.MisDataSpaceConvert))(0)); // z mis to min
|
}
|
Read_Output_3axis(acc_buf);
|
calidata.xnoutput=calidata.xfoutput=(signed int)((signed char)acc_buf[1])-x;
|
calidata.ynoutput=calidata.yfoutput=(signed int)((signed char)acc_buf[3])-y;
|
calidata.znoutput=calidata.zfoutput=(signed int)((signed char)acc_buf[5])-z;
|
printk("step 2 xnoutput = %d ynoutput = %d znoutput = %d \n",calidata.xnoutput,calidata.ynoutput,calidata.znoutput);
|
if((calidata.xnoutput>25)||(calidata.ynoutput>25)||(calidata.znoutput>25)){
|
printk("step2:=file=%s,line=%d\n",__FILE__,__LINE__);
|
sensor_write_reg(sc7a20_client,0x13,0x01);//allen
|
Write_Input(0x1e, 0x15); //保存校准寄存器的修改
|
mdelay(300);
|
Write_Input(0x1e, 0);
|
|
|
return 0;
|
}
|
|
//get the the smaller output,maybe the calibration finished
|
if(abs(calidata.xpoutput)<=abs(calidata.xnoutput)){
|
calidata.xfoutput=calidata.xpoutput;
|
calidata.xmmis=255;
|
}
|
else{
|
calidata.xfoutput=calidata.xnoutput;
|
calidata.xmmis=0;
|
}
|
if(abs(calidata.ypoutput)<=abs(calidata.ynoutput)){
|
calidata.yfoutput=calidata.ypoutput;
|
calidata.ymmis=255;
|
}
|
else{
|
calidata.yfoutput=calidata.ynoutput;
|
calidata.ymmis=0;
|
}
|
if(abs(calidata.zpoutput)<=abs(calidata.znoutput)){
|
calidata.zfoutput=calidata.zpoutput;
|
calidata.zmmis=255;
|
}
|
else{
|
calidata.zfoutput=calidata.znoutput;
|
calidata.zmmis=0;
|
}
|
//write the mismatch of the smaller output into register
|
if(calidata.xfinalf==0){
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.xaddmis, (*(calidata.MisDataSpaceConvert))(calidata.xmmis));
|
}
|
if(calidata.yfinalf==0){
|
calidata.MisDataSpaceConvert = forword_MisDataSpaceConvert;
|
Write_Input(calidata.yaddmis, (*(calidata.MisDataSpaceConvert))(calidata.ymmis));
|
}
|
if(calidata.zfinalf==0){
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.zaddmis, (*(calidata.MisDataSpaceConvert))(calidata.zmmis));
|
}
|
check_output_set_finalflag(&calidata,2);
|
//if the smaller output <25,the step3 mis is finished
|
if(abs(calidata.xfoutput)<25) calidata.xtempf=1;
|
if(abs(calidata.yfoutput)<25) calidata.ytempf=1;
|
if(abs(calidata.zfoutput)<25) calidata.ztempf=1;
|
//can cali?
|
//===========================================================================
|
|
|
//===========================================================================
|
//===========================================================================
|
//step3=cali mis for zero in 25 LSB
|
calidata.xpmis=calidata.ypmis=calidata.zpmis=255;
|
calidata.xnmis=calidata.ynmis=calidata.znmis=0;
|
check_finalflag_set_tempflag(&calidata);
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
cyclecount=0;
|
while(1){
|
if(++cyclecount>20)break;//if some errs happened,the cyclecount exceeded
|
|
if((calidata.xtempf)&&(calidata.ytempf)&&(calidata.ztempf))break;
|
updata_midmis_address(&calidata);
|
Read_Output_3axis(acc_buf);
|
calidata.xfoutput=(signed int)((signed char)acc_buf[1])-x;
|
calidata.yfoutput=(signed int)((signed char)acc_buf[3])-y;
|
calidata.zfoutput=(signed int)((signed char)acc_buf[5])-z;
|
#ifdef PRINT
|
printk("xp%4d=%4d,xm%4d=%4d,xn%4d=%4d, yp%4d=%4d,ym%4d=%4d,yn%4d=%4d, zp%4d=%4d,zm%4d=%4d,zn%4d=%4d\n\r",
|
calidata.xpoutput,(unsigned int)calidata.xpmis,
|
calidata.xfoutput,(unsigned int)calidata.xmmis,
|
calidata.xnoutput,(unsigned int)calidata.xnmis,
|
calidata.ypoutput,(unsigned int)calidata.ypmis,
|
calidata.yfoutput,(unsigned int)calidata.ymmis,
|
calidata.ynoutput,(unsigned int)calidata.ynmis,
|
calidata.zpoutput,(unsigned int)calidata.zpmis,
|
calidata.zfoutput,(unsigned int)calidata.zmmis,
|
calidata.znoutput,(unsigned int)calidata.znmis
|
);
|
#endif
|
updata_mmis_pnfoutput_set_tempflag(&calidata,acc_buf,x,y,z);
|
check_output_set_finalflag(&calidata,2);
|
if(check_flag_is_return(&calidata))return 1;
|
}
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
//cali mis for zero in 25 LSB
|
//===========================================================================
|
|
|
//===========================================================================
|
//===========================================================================
|
//step4=cali mis for rel and the most fit
|
calidata.xtempf=calidata.ytempf=calidata.ztempf=1;
|
if((calidata.xmmis>0)&&(calidata.xmmis<255))calidata.xtempf=0;
|
if((calidata.ymmis>0)&&(calidata.ymmis<255))calidata.ytempf=0;
|
if((calidata.zmmis>0)&&(calidata.zmmis<255))calidata.ztempf=0;
|
calidata.xpmis=calidata.xnmis=calidata.xmmis;
|
calidata.ypmis=calidata.ynmis=calidata.ymmis;
|
calidata.zpmis=calidata.znmis=calidata.zmmis;
|
for(count = 0; count < 3; count++)
|
{
|
if(calidata.xtempf==0){
|
calidata.xpmis = calidata.xmmis + count - 1;
|
if((calidata.xpmis>calidata.xmmis)&&(calidata.xpmis==128))calidata.xpmis = calidata.xmmis + count-1 + 1;
|
if((calidata.xpmis<calidata.xmmis)&&(calidata.xpmis==127))calidata.xpmis = calidata.xmmis + count-1 - 1;
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.xaddmis, (*(calidata.MisDataSpaceConvert))(calidata.xpmis));
|
}
|
if(calidata.ytempf==0){
|
calidata.ypmis = calidata.ymmis + count - 1;
|
if((calidata.ypmis>calidata.ymmis)&&(calidata.ypmis==128))calidata.ypmis = calidata.ymmis + count-1 + 1;
|
if((calidata.ypmis<calidata.ymmis)&&(calidata.ypmis==127))calidata.ypmis = calidata.ymmis + count-1 - 1;
|
calidata.MisDataSpaceConvert = forword_MisDataSpaceConvert;
|
Write_Input(calidata.yaddmis, (*(calidata.MisDataSpaceConvert))(calidata.ypmis));
|
}
|
if(calidata.ztempf==0){
|
calidata.zpmis = calidata.zmmis + count - 1;
|
if((calidata.zpmis>calidata.zmmis)&&(calidata.zpmis==128))calidata.zpmis = calidata.zmmis + count-1 + 1;
|
if((calidata.zpmis<calidata.zmmis)&&(calidata.zpmis==127))calidata.zpmis = calidata.zmmis + count-1 - 1;
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.zaddmis, (*(calidata.MisDataSpaceConvert))(calidata.zpmis));
|
}
|
Read_Output_3axis(acc_buf);
|
if(abs((signed int)((signed char)acc_buf[1])-x)<abs(calidata.xfoutput)){
|
calidata.xnmis=calidata.xpmis;
|
calidata.xfoutput= (signed int)((signed char)acc_buf[1])-x;
|
}
|
if(abs((signed int)((signed char)acc_buf[3])-y)<abs(calidata.yfoutput)){
|
calidata.ynmis=calidata.ypmis;
|
calidata.yfoutput= (signed int)((signed char)acc_buf[3])-y;
|
}
|
if(abs((signed int)((signed char)acc_buf[5])-z)<abs(calidata.zfoutput)){
|
calidata.znmis=calidata.zpmis;
|
calidata.zfoutput= (signed int)((signed char)acc_buf[5])-z;
|
}
|
if(calidata.xtempf==0){
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.xaddmis, (*(calidata.MisDataSpaceConvert))(calidata.xnmis));
|
}
|
if(calidata.ytempf==0){
|
calidata.MisDataSpaceConvert = forword_MisDataSpaceConvert;
|
Write_Input(calidata.yaddmis, (*(calidata.MisDataSpaceConvert))(calidata.ynmis));
|
}
|
if(calidata.ztempf==0){
|
calidata.MisDataSpaceConvert = reverse_MisDataSpaceConvert;
|
Write_Input(calidata.zaddmis, (*(calidata.MisDataSpaceConvert))(calidata.znmis));
|
}
|
#ifdef PRINT
|
printk("L%4d:xf=%4d,xmis=%4d,yf=%4d,ymis=%4d,zf=%4d,zmis=%4d\n\r",__LINE__,
|
(signed int)((signed char)acc_buf[1])-x,(unsigned int)calidata.xpmis,
|
(signed int)((signed char)acc_buf[3])-y,(unsigned int)calidata.ypmis,
|
(signed int)((signed char)acc_buf[5])-z,(unsigned int)calidata.zpmis
|
);
|
#endif
|
|
|
|
|
}
|
//Write_Input(AddMis, (*MisDataSpaceConvert)(FinaloutputMisConfiguration));
|
|
|
|
|
//===========================================================================
|
//===========================================================================
|
//step5=cali off for zero in 2 LSB
|
calidata.xpoff=calidata.ypoff=calidata.zpoff=0x7f;
|
calidata.xnoff=calidata.ynoff=calidata.znoff=0;
|
calidata.xtempf=calidata.ytempf=calidata.ztempf=0;
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
check_finalflag_set_tempflag(&calidata);
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
//offset max
|
if(calidata.xtempf==0){
|
calidata.OffDataSpaceConvert = reverse_OffDataSpaceConvert;
|
Write_Input(calidata.xaddoff, (*(calidata.OffDataSpaceConvert))(calidata.xpoff)); // x off to max
|
}
|
if(calidata.ytempf==0){
|
calidata.OffDataSpaceConvert = forword_OffDataSpaceConvert;
|
Write_Input(calidata.yaddoff, (*(calidata.OffDataSpaceConvert))(calidata.xpoff)); // y off to max
|
}
|
if(calidata.ztempf==0){
|
calidata.OffDataSpaceConvert = forword_OffDataSpaceConvert;
|
Write_Input(calidata.zaddoff, (*(calidata.OffDataSpaceConvert))(calidata.xpoff)); // z off to max
|
}
|
Read_Output_3axis(acc_buf);
|
calidata.xpoutput=calidata.xfoutput=(signed int)((signed char)acc_buf[1])-x;
|
calidata.ypoutput=calidata.yfoutput=(signed int)((signed char)acc_buf[3])-y;
|
calidata.zpoutput=calidata.zfoutput=(signed int)((signed char)acc_buf[5])-z;
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
check_output_set_finalflag(&calidata,2);
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
//offset min
|
if(calidata.xtempf==0){
|
calidata.OffDataSpaceConvert = reverse_OffDataSpaceConvert;
|
Write_Input(calidata.xaddoff, (*(calidata.OffDataSpaceConvert))(calidata.xnoff)); // x off to min
|
}
|
if(calidata.ytempf==0){
|
calidata.OffDataSpaceConvert = forword_OffDataSpaceConvert;
|
Write_Input(calidata.yaddoff, (*(calidata.OffDataSpaceConvert))(calidata.ynoff)); // y off to min
|
}
|
if(calidata.ztempf==0){
|
calidata.OffDataSpaceConvert = forword_OffDataSpaceConvert;
|
Write_Input(calidata.zaddoff, (*(calidata.OffDataSpaceConvert))(calidata.znoff)); // z off to min
|
}
|
Read_Output_3axis(acc_buf);
|
calidata.xnoutput=calidata.xfoutput=(signed int)((signed char)acc_buf[1])-x;
|
calidata.ynoutput=calidata.yfoutput=(signed int)((signed char)acc_buf[3])-y;
|
calidata.znoutput=calidata.zfoutput=(signed int)((signed char)acc_buf[5])-z;
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
check_output_set_finalflag(&calidata,2);
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
if(abs(calidata.xpoutput)<=abs(calidata.xnoutput)){
|
calidata.xfoutput=calidata.xpoutput;
|
calidata.xmoff=calidata.xpoff;
|
}
|
else{
|
calidata.xfoutput=calidata.xnoutput;
|
calidata.xmoff=calidata.xnoff;
|
}
|
if(abs(calidata.ypoutput)<=abs(calidata.ynoutput)){
|
calidata.yfoutput=calidata.ypoutput;
|
calidata.ymoff=calidata.ypoff;
|
}
|
else{
|
calidata.yfoutput=calidata.ynoutput;
|
calidata.ymoff=calidata.ynoff;
|
}
|
if(abs(calidata.zpoutput)<=abs(calidata.znoutput)){
|
calidata.zfoutput=calidata.zpoutput;
|
calidata.zmoff=calidata.zpoff;
|
}
|
else{
|
calidata.zfoutput=calidata.znoutput;
|
calidata.zmoff=calidata.znoff;
|
}
|
if(calidata.xtempf==0){
|
calidata.OffDataSpaceConvert = reverse_OffDataSpaceConvert;
|
Write_Input(calidata.xaddoff, (*(calidata.OffDataSpaceConvert))(calidata.xmoff));
|
}
|
if(calidata.ytempf==0){
|
calidata.OffDataSpaceConvert = forword_OffDataSpaceConvert;
|
Write_Input(calidata.yaddoff, (*(calidata.OffDataSpaceConvert))(calidata.ymoff));
|
}
|
if(calidata.ztempf==0){
|
calidata.OffDataSpaceConvert = forword_OffDataSpaceConvert;
|
Write_Input(calidata.zaddoff, (*(calidata.OffDataSpaceConvert))(calidata.zmoff));
|
}
|
if((calidata.xpoutput>0 && calidata.xnoutput>0)||(calidata.xpoutput<0 && calidata.xnoutput<0)){
|
calidata.xfinalf=1;
|
}
|
|
if((calidata.ypoutput>0 && calidata.ynoutput>0)||(calidata.ypoutput<0 && calidata.ynoutput<0)){
|
calidata.yfinalf=1;
|
}
|
|
if((calidata.zpoutput>0 && calidata.znoutput>0)||(calidata.zpoutput<0 && calidata.znoutput<0)){
|
calidata.zfinalf=1;
|
}
|
|
|
check_finalflag_set_tempflag(&calidata);
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
cyclecount=0;
|
while(1){
|
if(++cyclecount>20)break;
|
|
if((calidata.xtempf)&&(calidata.ytempf)&&(calidata.ztempf))break;
|
updata_midoff_address(&calidata);
|
Read_Output_3axis(acc_buf);
|
calidata.xfoutput=(signed int)((signed char)acc_buf[1])-x;
|
calidata.yfoutput=(signed int)((signed char)acc_buf[3])-y;
|
calidata.zfoutput=(signed int)((signed char)acc_buf[5])-z;
|
#ifdef PRINT
|
printk("xp%4d=%4d,xm%4d=%4d,xn%4d=%4d, yp%4d=%4d,ym%4d=%4d,yn%4d=%4d, zp%4d=%4d,zm%4d=%4d,zn%4d=%4d\n\r",
|
calidata.xpoutput,(unsigned int)calidata.xpoff,
|
calidata.xfoutput,(unsigned int)calidata.xmoff,
|
calidata.xnoutput,(unsigned int)calidata.xnoff,
|
calidata.ypoutput,(unsigned int)calidata.ypoff,
|
calidata.yfoutput,(unsigned int)calidata.ymoff,
|
calidata.ynoutput,(unsigned int)calidata.ynoff,
|
calidata.zpoutput,(unsigned int)calidata.zpoff,
|
calidata.zfoutput,(unsigned int)calidata.zmoff,
|
calidata.znoutput,(unsigned int)calidata.znoff
|
);
|
#endif
|
updata_moff_pnfoutput_set_tempflag(&calidata,acc_buf,x,y,z);
|
check_output_set_finalflag(&calidata,2);
|
if(check_flag_is_return(&calidata))return 1;
|
}
|
#ifdef PRINT
|
printk("L%4d:xff=%4d,xtf=%4d,yff=%4d,ytf=%4d,zff=%4d,ztf=%4d\n\r",__LINE__,
|
(unsigned int)calidata.xfinalf,(unsigned int)calidata.xtempf,
|
(unsigned int)calidata.yfinalf,(unsigned int)calidata.ytempf,
|
(unsigned int)calidata.zfinalf,(unsigned int)calidata.ztempf
|
);
|
#endif
|
//cali mis for zero in 25 LSB
|
//===========================================================================
|
|
|
|
return 1;
|
}
|
|
static int auto_calibration_instant_mtp_sc7a20(signed int x, signed int y, signed int z){
|
unsigned char readbuf[3]={0};
|
unsigned char buffer[6] = {0};
|
//unsigned char tbuffer[6] = {0};
|
signed int xoutp,youtp,zoutp;
|
unsigned char xfinalf,yfinalf,zfinalf;
|
char reg_13= 0;
|
xoutp=youtp=zoutp=0;
|
xfinalf=yfinalf=zfinalf=0;
|
if(auto_calibration_instant_sc7a20(x,y,z)==0)
|
{
|
printk("auto_calibration_instant ==0 \n");
|
sensor_write_reg(sc7a20_client, 0x1e,0x05);
|
mdelay(100);
|
sensor_write_reg(sc7a20_client, 0x13,0x01);
|
|
sensor_write_reg(sc7a20_client, 0x1e,0x15);
|
mdelay(300);
|
return 0;
|
}
|
|
//msleep(20);
|
tilt_3axis_mtp(x,y,z);
|
Read_Output_3axis(buffer);
|
xoutp=(signed int)((signed char)buffer[1])-x;
|
youtp=(signed int)((signed char)buffer[3])-y;
|
zoutp=(signed int)((signed char)buffer[5])-z;
|
|
if(abs(xoutp) < 2){xfinalf=1;}
|
if(abs(youtp) < 2){yfinalf=1;}
|
if(abs(zoutp) < 2){zfinalf=1;}
|
|
|
//*tbuffer = 0x10;
|
//sensor_rx_data(sc7a20_client, tbuffer,1);
|
readbuf[0]= Read_Reg_sc7a20(0x10);
|
//*tbuffer = 0x40;
|
//sensor_rx_data(sc7a20_client, tbuffer,1);
|
readbuf[1]= Read_Reg_sc7a20(0x40);
|
//*tbuffer = 0x47;
|
//sensor_rx_data(sc7a20_client, tbuffer,1);
|
readbuf[2]= Read_Reg_sc7a20(0x47);
|
printk("L%4d:xtilt=%4d,xmis=%4d,xoff=%4d\n\r",__LINE__,
|
(unsigned int)readbuf[0],
|
(unsigned int)readbuf[1],
|
(unsigned int)readbuf[2]
|
);
|
|
|
|
//*tbuffer = 0x11;
|
//sensor_rx_data(sc7a20_client, tbuffer,1);
|
readbuf[0]= Read_Reg_sc7a20(0x11);
|
//*tbuffer = 0x41;
|
//sensor_rx_data(sc7a20_client, tbuffer,1);
|
readbuf[1]= Read_Reg_sc7a20(0x41);
|
//*tbuffer = 0x48;
|
//sensor_rx_data(sc7a20_client, tbuffer,1);
|
readbuf[2]= Read_Reg_sc7a20(0x48);
|
printk("L%4d:ytilt=%4d,ymis=%4d,yoff=%4d\n\r",__LINE__,
|
(unsigned int)readbuf[0],
|
(unsigned int)readbuf[1],
|
(unsigned int)readbuf[2]
|
);
|
|
//*tbuffer = 0x12;
|
//sensor_rx_data(sc7a20_client, tbuffer,1);
|
readbuf[0]= Read_Reg_sc7a20(0x12);
|
//*tbuffer = 0x42;
|
//sensor_rx_data(sc7a20_client, tbuffer,1);
|
readbuf[1]= Read_Reg_sc7a20(0x42);
|
//*tbuffer = 0x49;
|
//sensor_rx_data(sc7a20_client, tbuffer,1);
|
readbuf[2]= Read_Reg_sc7a20(0x49);
|
printk("L%4d:ztilt=%4d,zmis=%4d,zoff=%4d\n\r",__LINE__,
|
(unsigned int)readbuf[0],
|
(unsigned int)readbuf[1],
|
(unsigned int)readbuf[2]
|
);
|
|
if(xfinalf && yfinalf && zfinalf)
|
{
|
sensor_write_reg(sc7a20_client,0x13,0x01);//allen MTP
|
reg_13 = sensor_read_reg(sc7a20_client,0x13);
|
printk("line %d reg_13 = %x\n",__LINE__,reg_13);
|
Write_Input(0x1e, 0x15); //保存校准寄存器的修改
|
mdelay(300);
|
reg_13 = sensor_read_reg(sc7a20_client,0x13);
|
printk("line %d reg_13 = %x\n",__LINE__,reg_13);
|
Write_Input(0x1e, 0);
|
|
printk(KERN_INFO "run calibration finished\n");
|
|
return 1;//xyz cali ok
|
}
|
else
|
{
|
sensor_write_reg(sc7a20_client,0x13,0x01);//allen MTP
|
reg_13 = sensor_read_reg(sc7a20_client,0x13);
|
printk("line %d reg_13 = %x\n",__LINE__,reg_13);
|
Write_Input(0x1e, 0x15); //保存校准寄存器的修改
|
mdelay(300);
|
reg_13 = sensor_read_reg(sc7a20_client,0x13);
|
printk("line %d reg_13 = %x\n",__LINE__,reg_13);
|
Write_Input(0x1e, 0);
|
return 0;
|
}
|
}
|
|
|
|
|
|
static ssize_t SC7A20_3_axis_Calibration(struct device *dev,struct device_attribute *attr ,const char *buf, size_t count)
|
{
|
//unsigned temp[3];
|
//struct SC7A20_acc acc={0,0,-64};
|
unsigned adj_ok = 0;
|
|
Write_Input(0x1e, 0x05); //为校准寄存器的修改开放权限
|
Write_Input(0x20, 0x77);
|
adj_ok = auto_calibration_instant_mtp_sc7a20(0,0,-64);
|
if(adj_ok )
|
{
|
Write_Input(0x1e, 0x15); //保存校准寄存器的修改
|
mdelay(5);
|
printk(KERN_INFO "run calibration finished\n");
|
}
|
else
|
printk(KERN_INFO "run calibration not finished\n");
|
|
mdelay(5);
|
return 1;
|
}
|
|
|
static ssize_t SC7A20_calibration_reset_store(struct device *dev,
|
struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
|
Read_Output(0x29);
|
//printk(KERN_INFO "reset calibration finished\n");
|
return count;
|
}
|
|
static ssize_t SC7A20_calibration_value_show(struct device *dev,
|
struct device_attribute *attr, char *buf)
|
{
|
return sprintf(buf, "%d %d %d\n", offset1.x,offset1.y,offset1.z);
|
}
|
|
static ssize_t SC7A20_calibration_value_store(struct device *dev,
|
struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
int data[3];
|
sscanf(buf, "%d %d %d", &data[0], &data[1], &data[2]);
|
offset1.x = data[0];
|
offset1.y = data[1];
|
offset1.z = data[2];
|
printk(KERN_INFO "set calibration finished\n");
|
return count;
|
}
|
|
static ssize_t SC7A20_register_store(struct device *dev,
|
struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
int address, value;
|
int result = 0;
|
sscanf(buf, "0x%x=0x%x", &address, &value);
|
|
result = sensor_write_reg(sc7a20_client, address,value);
|
|
if(result)
|
printk("%s:fail to write sensor_register\n",__func__);
|
|
return count;
|
}
|
|
static ssize_t SC7A20_register_show(struct device *dev,
|
struct device_attribute *attr, char *buf)
|
{
|
size_t count = 0;
|
|
|
|
char i;
|
char buffer[3] = {0};
|
i = 0x0f;
|
*buffer = i;
|
count = sensor_rx_data(sc7a20_client, &buffer[0], 1);
|
count += sprintf(buf, "0x%x: 0x%x\n", i, buffer[0]);
|
for(i=0x10;i<0x5a;i++)
|
{
|
*buffer = i;
|
|
sensor_rx_data(sc7a20_client, &buffer[0], 1);
|
count += sprintf(&buf[count],"0x%x: 0x%x\n", i, buffer[0]);
|
}
|
return count;
|
}
|
|
static ssize_t SC7A20_value_show(struct device *dev,
|
struct device_attribute *attr, char *buf)
|
{
|
s16 x,y,z;
|
int ret;
|
char buffer1[3],buffer2[3] = {0};
|
|
memset(buffer1, 0, 3);
|
memset(buffer2, 0, 3);
|
|
*buffer1 = SC7A20_STATUS;
|
ret = sensor_rx_data(sc7a20_client, buffer1,1);
|
buffer1[0] &= 0x08;
|
if(!buffer1[0])
|
return sprintf(buf, "SC7A20 data is not ready!\n");
|
|
*buffer1 = SC7A20_XOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer1,1);
|
*buffer2 = SC7A20_XOUT_H;
|
ret = sensor_rx_data(sc7a20_client, buffer2,1);
|
x = (((s16)((buffer2[0] << 8) + buffer1[0])) >>4);
|
|
*buffer1 = SC7A20_YOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer1,1);
|
*buffer2 = SC7A20_YOUT_H;
|
ret = sensor_rx_data(sc7a20_client, buffer2,1);
|
y = (((s16)((buffer2[0] << 8) + buffer1[0])) >>4);
|
|
*buffer1 = SC7A20_ZOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer1,1);
|
*buffer2 = SC7A20_ZOUT_H;
|
ret = sensor_rx_data(sc7a20_client, buffer2,1);
|
z = (((s16)((buffer2[0] << 8) + buffer1[0])) >>4);
|
|
if (ret < 0)
|
return sprintf(buf, "SC7A20_read_data failed!\n");
|
else
|
return sprintf(buf, "x=%4d(0x%4x),y=%4d(0x%4x),z=%4d(0x%4x)\n",x,x,y,y,z,z);
|
|
}
|
|
static DEVICE_ATTR(reg, 0664,
|
SC7A20_register_show, SC7A20_register_store);
|
|
static DEVICE_ATTR(calibration_run, 0664, //calibration_run
|
NULL, SC7A20_3_axis_Calibration);
|
static DEVICE_ATTR(calibration_reset, 0664,
|
NULL, SC7A20_calibration_reset_store);
|
static DEVICE_ATTR(calibration_value,0664,
|
SC7A20_calibration_value_show,
|
SC7A20_calibration_value_store);
|
static DEVICE_ATTR(value, 0664,
|
SC7A20_value_show, NULL);
|
|
static struct attribute *SC7A20_attributes[] = {
|
&dev_attr_value.attr,
|
&dev_attr_reg.attr,
|
&dev_attr_calibration_run.attr,
|
&dev_attr_calibration_reset.attr,
|
&dev_attr_calibration_value.attr,
|
NULL
|
};
|
|
static struct attribute_group SC7A20_attribute_group = {
|
.attrs = SC7A20_attributes
|
};
|
|
|
|
|
/****************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 = 0x07;
|
|
//register setting according to chip datasheet
|
if(enable)
|
{
|
status = SC7A20_ENABLE; //sc7a20
|
sensor->ops->ctrl_data |= SC7A20_400HZ;
|
}
|
else
|
status = ~SC7A20_ENABLE; //sc7a20
|
|
|
printk("%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);
|
//sensor_write_reg(client, SC7A20_BOOT, 0x80);
|
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 ret;
|
unsigned char chip_id[3] = {0,0,0};
|
//char reg_cali;
|
|
//mutex_lock(&(sensor->allen_mutex) );//allen
|
|
printk("aaaaa %s:line=%d\n",__func__,__LINE__);
|
|
result = sensor->ops->active(client,0,0);
|
if(result)
|
{
|
printk("%s:line=%d,error\n",__func__,__LINE__);
|
return result;
|
}
|
sc7a20_client = client;
|
sensor->status_cur = SENSOR_OFF;
|
//sensor->time_of_cali =0;//allen
|
offset1.x=offset1.y=offset1.z=0;
|
|
|
*chip_id = 0x0f;
|
ret = sensor_rx_data(client, chip_id,1);
|
printk("sc7a20_chip_id is %d",chip_id[0]);
|
|
sensor_write_reg(client, SC7A20_BOOT, 0x80);
|
mdelay(20);
|
sensor_write_reg(client, SC7A20_MODE3, 0x88);
|
|
result = sensor_write_reg(client, SC7A20_MODE, 0x07);
|
|
|
//HR mode //sc7a20
|
|
|
//register_test();
|
if(result)
|
{
|
printk("aaaaa %s:line=%d,error\n",__func__,__LINE__);
|
return result;
|
}
|
|
|
|
if(sensor->pdata->irq_enable) //open interrupt
|
{
|
result = sensor_write_reg(client, SC7A20_MODE2, 0x10);
|
result = sensor_write_reg(client, 0x25, 0x02);
|
|
if(result)
|
{
|
printk("%s:line=%d,error\n",__func__,__LINE__);
|
return result;
|
}
|
}
|
memset(&axis_average, 0, sizeof(struct sensor_axis_average));
|
|
if(noCreateAttr)
|
{
|
struct input_dev* pInputDev;
|
pInputDev = input_allocate_device();
|
if (!pInputDev) {
|
dev_err(&client->dev,
|
"Failed to allocate input device %s\n", sensor->input_dev->name);
|
return -ENOMEM;
|
}
|
|
pInputDev->name = "sc7a20";
|
set_bit(EV_ABS, pInputDev->evbit);
|
|
/* x-axis acceleration */
|
input_set_abs_params(pInputDev, ABS_X, sensor->ops->range[0], sensor->ops->range[1], 0, 0);
|
/* y-axis acceleration */
|
input_set_abs_params(pInputDev, ABS_Y, sensor->ops->range[0], sensor->ops->range[1], 0, 0);
|
/* z-axis acceleration */
|
input_set_abs_params(pInputDev, ABS_Z, sensor->ops->range[0], sensor->ops->range[1], 0, 0);
|
|
|
ret = input_register_device(pInputDev);
|
if (ret) {
|
dev_err(&client->dev,
|
"Unable to register input device %s\n", pInputDev->name);
|
return -ENOMEM;
|
}
|
|
DBG("Sys Attribute Register here %s is called for DA311.\n", __func__);
|
ret = sysfs_create_group(&pInputDev->dev.kobj, &SC7A20_attribute_group);
|
if (ret) {
|
DBG("sc7a20 sysfs_create_group Error err=%d..", ret);
|
ret = -EINVAL;
|
}
|
|
|
|
noCreateAttr = 0;
|
}
|
|
return result;
|
}
|
|
|
static int sensor_convert_data(struct i2c_client *client, char high_byte, char low_byte ,s16 off)
|
{
|
s64 result;
|
result = (((s16)((high_byte << 8) + low_byte)) >>4);
|
result -= off;
|
if (result < SC7A20_BOUNDARY)
|
result = result* SC7A20_GRAVITY_STEP;
|
else
|
result = ~( ((~result & (0x7ffff>>(20-SC7A20_PRECISION)) ) + 1)
|
* SC7A20_GRAVITY_STEP) + 1;
|
|
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 */
|
|
/* RK3326 platform board */
|
#if defined (CONFIG_BOARD_RK3326_AK47)
|
input_report_abs(sensor->input_dev, ABS_X,axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
#elif defined (CONFIG_BOARD_RK3326_TH700)
|
input_report_abs(sensor->input_dev, ABS_X,axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
#elif defined (CONFIG_BOARD_RK3326_TH863B_10)
|
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);
|
#elif defined (CONFIG_BOARD_RK3326_TH863B_8)
|
input_report_abs(sensor->input_dev, ABS_X,axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
#elif defined (CONFIG_BOARD_RK3326_TH863B_7)
|
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);
|
#elif defined (CONFIG_BOARD_RK3326_TH863B_V31_7)
|
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);
|
#elif defined(CONFIG_BOARD_RK3326_TH1021DN)
|
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);
|
#elif defined(CONFIG_BOARD_RK3326_TH1021DN_V20)
|
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);
|
#elif defined(CONFIG_BOARD_RK3326_TH7926_7)
|
input_report_abs(sensor->input_dev, ABS_X,axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
#elif defined(CONFIG_BOARD_RK3326_TH7926_9)
|
input_report_abs(sensor->input_dev, ABS_X,axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
#elif defined(CONFIG_BOARD_RK3326_MT1011)
|
input_report_abs(sensor->input_dev, ABS_X,-axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,-axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
#elif defined(CONFIG_BOARD_RK3326_M1011QR)
|
input_report_abs(sensor->input_dev, ABS_X,-axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,-axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
|
/* RK3126C platform board */
|
#elif defined(CONFIG_BOARD_RK3126C_AK47)
|
input_report_abs(sensor->input_dev, ABS_X,axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
#elif defined(CONFIG_BOARD_RK3126C_TH1021DN)
|
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);
|
#elif defined(CONFIG_BOARD_RK3126C_TH863_7)
|
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);
|
#elif defined(CONFIG_BOARD_RK3126C_TH863_8)
|
input_report_abs(sensor->input_dev, ABS_X,axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
#elif defined(CONFIG_BOARD_RK3126C_TH98V)
|
input_report_abs(sensor->input_dev, ABS_X,axis->y);
|
input_report_abs(sensor->input_dev, ABS_Y,axis->x);
|
input_report_abs(sensor->input_dev, ABS_Z,-axis->z);
|
#else
|
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);
|
#endif
|
|
|
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 2
|
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 buffer1[3],buffer2[3] = {0};
|
char value = 0;
|
static int flag;
|
|
//SC7A20_load_user_calibration(client);
|
memset(buffer1, 0, 3);
|
memset(buffer2, 0, 3);
|
|
*buffer1 = SC7A20_STATUS;
|
ret = sensor_rx_data(sc7a20_client, buffer1,1);
|
buffer1[0] &= 0x08;
|
if(!buffer1[0])
|
return ret;
|
|
*buffer1 = SC7A20_XOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer1,1);
|
*buffer2 = SC7A20_XOUT_H;
|
ret = sensor_rx_data(client, buffer2,1);
|
if (ret < 0)
|
return ret;
|
x = sensor_convert_data(sensor->client, buffer2[0], buffer1[0],0); //buffer[1]:high bit
|
|
*buffer1 = SC7A20_YOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer1,1);
|
*buffer2 = SC7A20_YOUT_H;
|
ret = sensor_rx_data(client, buffer2,1);
|
if (ret < 0)
|
return ret;
|
y = sensor_convert_data(sensor->client, buffer2[0], buffer1[0],0);
|
|
*buffer1 = SC7A20_ZOUT_L;
|
ret = sensor_rx_data(sc7a20_client, buffer1,1);
|
*buffer2 = SC7A20_ZOUT_H;
|
ret = sensor_rx_data(client, buffer2,1);
|
if (ret < 0)
|
return ret;
|
z = sensor_convert_data(sensor->client, buffer2[0], buffer1[0],0);
|
|
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;
|
|
#if 0
|
axis_average.x_average += axis.x;
|
axis_average.y_average += axis.y;
|
axis_average.z_average += axis.z;
|
axis_average.count++;
|
|
if(axis_average.count >= SC7A20_COUNT_AVERAGE)
|
{
|
axis.x = axis_average.x_average / axis_average.count;
|
axis.y = axis_average.y_average / axis_average.count;
|
axis.z = axis_average.z_average / axis_average.count;
|
|
DBG( "%s: axis = %d %d %d \n", __func__, axis.x, axis.y, axis.z);
|
|
memset(&axis_average, 0, sizeof(struct sensor_axis_average));
|
|
//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);
|
|
/* \BB\A5\B3\E2\B5ػ\BA\B4\E6\CA\FD\BE\DD. */
|
mutex_lock(&(sensor->data_mutex) );
|
sensor->axis = axis;
|
mutex_unlock(&(sensor->data_mutex) );
|
}
|
}
|
#else
|
/*
|
*input dev will ignore report data if data value is the same with last_value,
|
*sample rate will not enough by this way, so just avoid this case
|
*/
|
if ((sensor->axis.x == axis.x) && (sensor->axis.y == axis.y) && (sensor->axis.z == axis.z)) {
|
if (flag) {
|
flag = 0;
|
axis.x += 1;
|
axis.y += 1;
|
axis.z += 1;
|
} else {
|
flag = 1;
|
axis.x -= 1;
|
axis.y -= 1;
|
axis.z -= 1;
|
}
|
}
|
|
gsensor_report_value(client, &axis);
|
|
/* \BB\A5\B3\E2\B5ػ\BA\B4\E6\CA\FD\BE\DD. */
|
mutex_lock(&(sensor->data_mutex) );
|
sensor->axis = axis;
|
mutex_unlock(&(sensor->data_mutex) );
|
#endif
|
|
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;
|
}
|
|
|
static struct sensor_operate gsensor_sc7a20_ops = {
|
.name = "gs_sc7a20",
|
.type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct
|
.id_i2c = ACCEL_ID_SC7A20, //i2c id number
|
.read_reg = SC7A20_XOUT_H, //read data
|
.read_len = 1, //data length
|
.id_reg = SENSOR_UNKNOW_DATA, //read device id from this register
|
.id_data = SENSOR_UNKNOW_DATA, //device id
|
.precision = SC7A20_PRECISION, //12 bit
|
.ctrl_reg = SC7A20_MODE, //enable or disable SC7A20_MODE
|
.int_status_reg = SENSOR_UNKNOW_DATA, //intterupt status register
|
.range = {-SC7A20_RANGE,SC7A20_RANGE}, //range
|
.trig = IRQF_TRIGGER_HIGH|IRQF_ONESHOT,
|
.active = sensor_active,
|
.init = sensor_init,
|
.report = sensor_report_value,
|
};
|
|
/****************operate according to sensor chip:end************/
|
static int gsensor_sc7a20_probe(struct i2c_client *client,
|
const struct i2c_device_id *devid)
|
{
|
return sensor_register_device(client, NULL, devid, &gsensor_sc7a20_ops);
|
}
|
|
static int gsensor_sc7a20_remove(struct i2c_client *client)
|
{
|
return sensor_unregister_device(client, NULL, &gsensor_sc7a20_ops);
|
}
|
|
static const struct i2c_device_id gsensor_sc7a20_id[] = {
|
{"gs_sc7a20", ACCEL_ID_SC7A20},
|
{}
|
};
|
|
static struct i2c_driver gsensor_sc7a20_driver = {
|
.probe = gsensor_sc7a20_probe,
|
.remove = gsensor_sc7a20_remove,
|
.shutdown = sensor_shutdown,
|
.id_table = gsensor_sc7a20_id,
|
.driver = {
|
.name = "gsensor_sc7a20",
|
#ifdef CONFIG_PM
|
.pm = &sensor_pm_ops,
|
#endif
|
},
|
};
|
|
module_i2c_driver(gsensor_sc7a20_driver);
|
|
MODULE_AUTHOR("luowei <lw@rock-chips.com>");
|
MODULE_DESCRIPTION("sc7a20 3-Axis accelerometer driver");
|
MODULE_LICENSE("GPL");
|
