/* drivers/input/sensors/access/sc7a30.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 <linux/atomic.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/workqueue.h>
#include <linux/freezer.h>
#include <linux/of_gpio.h>
#ifdef CONFIG_HAS_EARLYSUSPEND
#include <linux/earlysuspend.h>
#endif
#include <linux/sensor-dev.h>
#include <linux/ioctl.h>
#include <linux/wakelock.h>
#define SC7A30_ENABLE 1
#define SC7A30_XOUT_L 0x28
#define SC7A30_XOUT_H 0x29
#define SC7A30_YOUT_L 0x2A
#define SC7A30_YOUT_H 0x2B
#define SC7A30_ZOUT_L 0x2C
#define SC7A30_ZOUT_H 0x2D
#define SC7A30_MODE 0x20
#define SC7A30_MODE1 0x21
#define SC7A30_MODE2 0x22
#define SC7A30_MODE3 0x23
#define SC7A30_BOOT 0x24
#define SC7A30_STATUS 0x27
#define SC7A30_50HZ 0x40
#define SC7A30_100HZ 0x50
#define SC7A30_200HZ 0x60
#define SC7A30_400HZ 0x70
#define SC7A30_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 SC7A30_PRECISION 12
#define SC7A30_BOUNDARY (0x1 << (SC7A30_PRECISION - 1))
#define SC7A30_GRAVITY_STEP (SC7A30_RANGE / SC7A30_BOUNDARY)
#define SC7A30_COUNT_AVERAGE 2
#define CFG_GSENSOR_CALIBFILE "/data/data/com.actions.sensor.calib/files/gsensor_calib.txt"
struct SC7A30_acc {
int x;
int y;
int z;
};
static struct SC7A30_acc offset;
static int calibrated;
static struct i2c_client *sc7a30_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(unsigned char reg)
{
char buffer[3] = {0};
*buffer = reg;
sensor_rx_data(sc7a30_client, buffer, 1);
return buffer[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 = SC7A30_STATUS;
//ret = sensor_rx_data(sc7a30_client, buffer,1);
buffer[0] = Read_Reg(0x27);
if( (buffer[0] & 0x08) != 0 ) {break;}
index++;
if(index > 40)break;
}
//6 register data be read out
*buffer = SC7A30_XOUT_L;
ret = sensor_rx_data(sc7a30_client, buffer, 1);
acc_buf[0] = buffer[0];
*buffer = SC7A30_XOUT_H;
ret = sensor_rx_data(sc7a30_client, buffer, 1);
acc_buf[1] = buffer[0];
*buffer = SC7A30_YOUT_L;
ret = sensor_rx_data(sc7a30_client, buffer, 1);
acc_buf[2] = buffer[0];
*buffer = SC7A30_YOUT_H;
ret = sensor_rx_data(sc7a30_client, buffer, 1);
acc_buf[3] = buffer[0];
*buffer = SC7A30_ZOUT_L;
ret = sensor_rx_data(sc7a30_client, buffer,1);
acc_buf[4] = buffer[0];
*buffer = SC7A30_ZOUT_H;
ret = sensor_rx_data(sc7a30_client, buffer, 1);
acc_buf[5] = buffer[0];
}
static void Write_Input(char addr, char thedata)
{
int result;
result = sensor_write_reg(sc7a30_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);
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;
xoutp = xoutpt-x*16;
youtp = youtpt-y*16;
zoutp = zoutpt-z*16;
*buffer = 0x10;
sensor_rx_data(sc7a30_client, buffer, 1);
mtpread[0]=(signed char)buffer[0];
*buffer = 0x11;
sensor_rx_data(sc7a30_client, buffer, 1);
mtpread[1]=(signed char)buffer[0];
*buffer = 0x12;
sensor_rx_data(sc7a30_client, buffer, 1);
mtpread[2]=(signed char)buffer[0];
xtilt=(signed char)(xoutp/8)+ mtpread[0];
ytilt=(signed char)(youtp/8)+ mtpread[1];
ztilt=(signed char)(zoutp/8)+ mtpread[2];
Write_Input(0x10, xtilt);
Write_Input(0x11, ytilt);
Write_Input(0x12, ztilt);
}
static unsigned char forword_MisDataSpaceConvert(unsigned char continuous)
{
if (continuous >= 128)
return continuous - 128;
else
return 255 - continuous;
}
static unsigned char reverse_MisDataSpaceConvert(unsigned char continuous)
{
if (continuous >= 128)
return continuous;
else
return 127 - continuous;
}
static unsigned char reverse_OffDataSpaceConvert(unsigned char continuous)
{
return 127 - continuous;
}
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;
}
}
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; }
}
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;
}
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));
}
}
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)
{
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)
{
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(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};
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
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
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(sc7a30_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 (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(sc7a30_client,0x13,0x01);
Write_Input(0x1e, 0x15);
mdelay(300);
return 0;
}
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;
}
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(abs(calidata.xfoutput)<25) calidata.xtempf=1;
if(abs(calidata.yfoutput)<25) calidata.ytempf=1;
if(abs(calidata.zfoutput)<25) calidata.ztempf=1;
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((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
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));
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
return 1;
}
static __maybe_unused int auto_calibration_instant_mtp(signed int x, signed int y, signed int z)
{
unsigned char readbuf[3]={0};
unsigned char buffer[6] = {0};
signed int xoutp,youtp,zoutp;
unsigned char xfinalf,yfinalf,zfinalf;
int reg_13 = 0;
xoutp=youtp=zoutp=0;
xfinalf=yfinalf=zfinalf=0;
if (auto_calibration_instant(x,y,z) == 0)
{
printk("auto_calibration_instant ==0 \n");
sensor_write_reg(sc7a30_client, 0x1e,0x05);
mdelay(100);
sensor_write_reg(sc7a30_client, 0x13,0x01);
sensor_write_reg(sc7a30_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(sc7a30_client, tbuffer,1);
readbuf[0]= Read_Reg(0x10);
//*tbuffer = 0x40;
//sensor_rx_data(sc7a30_client, tbuffer,1);
readbuf[1]= Read_Reg(0x40);
//*tbuffer = 0x47;
//sensor_rx_data(sc7a30_client, tbuffer,1);
readbuf[2]= Read_Reg(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]
);
readbuf[0]= Read_Reg(0x11);
readbuf[1]= Read_Reg(0x41);
readbuf[2]= Read_Reg(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]
);
readbuf[0]= Read_Reg(0x12);
readbuf[1]= Read_Reg(0x42);
readbuf[2]= Read_Reg(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(sc7a30_client,0x13,0x01);
reg_13 = sensor_read_reg(sc7a30_client,0x13);
printk("line %d reg_13 = %x\n",__LINE__,reg_13);
Write_Input(0x1e, 0x15);
mdelay(300);
printk(KERN_INFO "run calibration finished\n");
return 1;
} else {
sensor_write_reg(sc7a30_client,0x13,0x01);//allen MTP
reg_13 = sensor_read_reg(sc7a30_client,0x13);
printk("line %d reg_13 = %x\n",__LINE__,reg_13);
Write_Input(0x1e, 0x15);
mdelay(300);
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 = 0x07;
if (enable)
{
status = SC7A30_ENABLE; //sc7a30
sensor->ops->ctrl_data |= SC7A30_400HZ;
} else
status = ~SC7A30_ENABLE; //sc7a30
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);
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;
//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;
}
calibrated = 0;
sc7a30_client = client;
sensor->status_cur = SENSOR_OFF;
//sensor->time_of_cali =0;//allen
offset.x=offset.y=offset.z=0;
sensor_write_reg(client, SC7A30_BOOT, 0x80);
mdelay(20);
result = sensor_write_reg(client, SC7A30_MODE, 0x07);
sensor_write_reg(client, SC7A30_MODE3, 0x88);
// result = sensor_write_reg(client, SC7A30_MODE, 0x77);
//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, SC7A30_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));
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;
result = result* SC7A30_GRAVITY_STEP;
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);
if (sensor->status_cur == SENSOR_ON) {
/* 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);
//printk("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 value = 0;
//SC7A30_load_user_calibration(client);
//printk("---------------in--------------------\n");
#if 0
memset(buffer1, 0, 3);
memset(buffer2, 0, 3);
*buffer1 = SC7A30_STATUS;
ret = sensor_rx_data(sc7a30_client, buffer1,1);
buffer1[0] &= 0x08;
if(!buffer1[0])
return ret;
*buffer1 = SC7A30_XOUT_L;
ret = sensor_rx_data(sc7a30_client, buffer1,1);
*buffer2 = SC7A30_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 = SC7A30_YOUT_L;
ret = sensor_rx_data(sc7a30_client, buffer1,1);
*buffer2 = SC7A30_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 = SC7A30_ZOUT_L;
ret = sensor_rx_data(sc7a30_client, buffer1,1);
*buffer2 = SC7A30_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);
#else
char buffer[6] = {0};
memset(buffer, 0, 6);
/* Data bytes from hardware xL, xH, yL, yH, zL, zH */
*buffer = SC7A30_XOUT_L | 0x80;
ret = sensor_rx_data(sc7a30_client, buffer, 6);
if (ret < 0) {
printk("%s, %d, sensor rx data failed\n", __func__, __LINE__);
return ret;
}
//this gsensor need 6 bytes buffer
x = sensor_convert_data(sensor->client, buffer[1], buffer[0], 0); //buffer[1]:high bit
y = sensor_convert_data(sensor->client, buffer[3], buffer[2], 0);
z = sensor_convert_data(sensor->client, buffer[5], buffer[4], 0);
#endif
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 >= SC7A30_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;
printk( "%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
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);
printk("%s:sensor int status :0x%x\n",__func__,value);
}
return ret;
}
static struct sensor_operate gsensor_sc7a30_ops = {
.name = "gs_sc7a30",
.type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct
.id_i2c = ACCEL_ID_SC7A30, //i2c id number
.read_reg = SC7A30_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 = SC7A30_PRECISION, //12 bit
.ctrl_reg = SC7A30_MODE, //enable or disable SC7A30_MODE
.int_status_reg = SENSOR_UNKNOW_DATA, //intterupt status register
.range = {-SC7A30_RANGE,SC7A30_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_sc7a30_probe(struct i2c_client *client,
const struct i2c_device_id *devid)
{
return sensor_register_device(client, NULL, devid, &gsensor_sc7a30_ops);
}
static int gsensor_sc7a30_remove(struct i2c_client *client)
{
return sensor_unregister_device(client, NULL, &gsensor_sc7a30_ops);
}
static const struct i2c_device_id gsensor_sc7a30_id[] = {
{"gs_sc7a30", ACCEL_ID_SC7A30},
{}
};
static struct i2c_driver gsensor_sc7a30_driver = {
.probe = gsensor_sc7a30_probe,
.remove = gsensor_sc7a30_remove,
.shutdown = sensor_shutdown,
.id_table = gsensor_sc7a30_id,
.driver = {
.name = "gsensor_sc7a30",
#ifdef CONFIG_PM
.pm = &sensor_pm_ops,
#endif
},
};
module_i2c_driver(gsensor_sc7a30_driver);
MODULE_AUTHOR("luowei <lw@rock-chips.com>");
MODULE_DESCRIPTION("sc7a30 3-Axis accelerometer driver");
MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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