/* drivers/input/sensors/access/dmard10.c
*
* Copyright (C) 2012-2015 ROCKCHIP.
* Author: guoyi <gy@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>
#include <linux/of_gpio.h>
#ifdef CONFIG_HAS_EARLYSUSPEND
#include <linux/earlysuspend.h>
#endif
#include <linux/sensor-dev.h>
/* Default register settings */
#define RBUFF_SIZE 12 /* Rx buffer size */
#define REG_ACTR 0x00
#define REG_WDAL 0x01
#define REG_TAPNS 0x0f
#define REG_MISC2 0x1f
#define REG_AFEM 0x0c
#define REG_CKSEL 0x0d
#define REG_INTC 0x0e
#define REG_STADR 0x12
#define REG_STAINT 0x1C
#define REG_PD 0x21
#define REG_TCGYZ 0x26
#define REG_X_OUT 0x41
#define MODE_Off 0x00
#define MODE_ResetAtOff 0x01
#define MODE_Standby 0x02
#define MODE_ResetAtStandby 0x03
#define MODE_Active 0x06
#define MODE_Trigger 0x0a
#define MODE_ReadOTP 0x12
#define MODE_WriteOTP 0x22
#define MODE_WriteOTPBuf 0x42
#define MODE_ResetDataPath 0x82
#define VALUE_STADR 0x55
#define VALUE_STAINT 0xAA
#define VALUE_AFEM_AFEN_Normal 0x8f// AFEN set 1 , ATM[2:0]=b'000(normal),EN_Z/Y/X/T=1
#define VALUE_AFEM_Normal 0x0f// AFEN set 0 , ATM[2:0]=b'000(normal),EN_Z/Y/X/T=1
#define VALUE_INTC 0x00// INTC[6:5]=b'00
#define VALUE_INTC_Interrupt_En 0x20// INTC[6:5]=b'01 (Data ready interrupt enable, active high at INT0)
#define VALUE_CKSEL_ODR_0_204 0x04// ODR[3:0]=b'0000 (0.78125Hz), CCK[3:0]=b'0100 (204.8kHZ)
#define VALUE_CKSEL_ODR_1_204 0x14// ODR[3:0]=b'0001 (1.5625Hz), CCK[3:0]=b'0100 (204.8kHZ)
#define VALUE_CKSEL_ODR_3_204 0x24// ODR[3:0]=b'0010 (3.125Hz), CCK[3:0]=b'0100 (204.8kHZ)
#define VALUE_CKSEL_ODR_6_204 0x34// ODR[3:0]=b'0011 (6.25Hz), CCK[3:0]=b'0100 (204.8kHZ)
#define VALUE_CKSEL_ODR_12_204 0x44// ODR[3:0]=b'0100 (12.5Hz), CCK[3:0]=b'0100 (204.8kHZ)
#define VALUE_CKSEL_ODR_25_204 0x54// ODR[3:0]=b'0101 (25Hz), CCK[3:0]=b'0100 (204.8kHZ)
#define VALUE_CKSEL_ODR_50_204 0x64// ODR[3:0]=b'0110 (50Hz), CCK[3:0]=b'0100 (204.8kHZ)
#define VALUE_CKSEL_ODR_100_204 0x74// ODR[3:0]=b'0111 (100Hz), CCK[3:0]=b'0100 (204.8kHZ)
#define VALUE_TAPNS_NoFilter 0x00 // TAP1/TAP2 NO FILTER
#define VALUE_TAPNS_Ave_2 0x11 // TAP1/TAP2 Average 2
#define VALUE_TAPNS_Ave_4 0x22 // TAP1/TAP2 Average 4
#define VALUE_TAPNS_Ave_8 0x33 // TAP1/TAP2 Average 8
#define VALUE_TAPNS_Ave_16 0x44 // TAP1/TAP2 Average 16
#define VALUE_TAPNS_Ave_32 0x55 // TAP1/TAP2 Average 32
#define VALUE_MISC2_OSCA_EN 0x08
#define VALUE_PD_RST 0x52
//#define DMARD10_REG_INTSU 0x47
//#define DMARD10_REG_MODE 0x44
//#define DMARD10_REG_SR 0x44
#define DMARD10_REG_DS 0X49
#define DMARD10_REG_ID 0X0F
#define DMARD10_REG_IT 0X4D
#define DMARD10_REG_INTSRC1_C 0X4A
#define DMARD10_REG_INTSRC1_S 0X4B
#define MMAIO 0xA1
// IOCTLs for DMARD10 library
#define ECS_IOCTL_INIT _IO(MMAIO, 0x01)
#define ECS_IOCTL_RESET _IO(MMAIO, 0x04)
#define ECS_IOCTL_CLOSE _IO(MMAIO, 0x02)
#define ECS_IOCTL_START _IO(MMAIO, 0x03)
#define ECS_IOCTL_GETDATA _IOR(MMAIO, 0x08, char[RBUFF_SIZE+1])
#define SENSOR_CALIBRATION _IOWR(MMAIO, 0x05 , int[SENSOR_DATA_SIZE])
// IOCTLs for APPs
#define ECS_IOCTL_APP_SET_RATE _IOW(MMAIO, 0x10, char)
//rate
#define DMARD10_RATE_32 32
/*
#define DMARD10_RATE_64 64
#define DMARD10_RATE_120 128
#define DMARD10_RATE_MIN DMARD10_RATE_1
#define DMARD10_RATE_MAX DMARD10_RATE_120
*/
/*status*/
#define DMARD10_OPEN 1
#define DMARD10_CLOSE 0
#define DMARD10_NORMAL 2
#define DMARD10_LOWPOWER 3
#define DMARD10_IIC_ADDR 0x18
#define DMARD10_REG_LEN 11
#define DMARD10_FATOR 15
#define DMARD10_X_OUT 0x41
#define SENSOR_DATA_SIZE 3
#define DMARD10_SENSOR_RATE_1 0
#define DMARD10_SENSOR_RATE_2 1
#define DMARD10_SENSOR_RATE_3 2
#define DMARD10_SENSOR_RATE_4 3
#define POWER_OR_RATE 1
#define SW_RESET 1
#define DMARD10_INTERRUPUT 1
#define DMARD10_POWERDOWN 0
#define DMARD10_POWERON 1
//g-senor layout configuration, choose one of the following configuration
#define AVG_NUM 16
#define SENSOR_DATA_SIZE 3
#define DEFAULT_SENSITIVITY 1024
#define DMARD10_ENABLE 1
#define DMARD10_REG_X_OUT 0x12
#define DMARD10_REG_Y_OUT 0x1
#define DMARD10_REG_Z_OUT 0x2
#define DMARD10_REG_TILT 0x3
#define DMARD10_REG_SRST 0x4
#define DMARD10_REG_SPCNT 0x5
#define DMARD10_REG_INTSU 0x6
#define DMARD10_REG_MODE 0x7
#define DMARD10_REG_SR 0x8
#define DMARD10_REG_PDET 0x9
#define DMARD10_REG_PD 0xa
#define DMARD10_RANGE 4000000
#define DMARD10_PRECISION 10
#define DMARD10_BOUNDARY (0x1 << (DMARD10_PRECISION - 1))
#define DMARD10_GRAVITY_STEP (DMARD10_RANGE / DMARD10_BOUNDARY)
struct sensor_axis_average {
int x_average;
int y_average;
int z_average;
int count;
};
static struct sensor_axis_average axis_average;
int gsensor_reset(struct i2c_client *client){
char buffer[7], buffer2[2];
/* 1. check D10 , VALUE_STADR = 0x55 , VALUE_STAINT = 0xAA */
buffer[0] = REG_STADR;
buffer2[0] = REG_STAINT;
sensor_rx_data(client, buffer, 2);
sensor_rx_data(client, buffer2, 2);
if( buffer[0] == VALUE_STADR || buffer2[0] == VALUE_STAINT){
DBG(KERN_INFO " REG_STADR_VALUE = %d , REG_STAINT_VALUE = %d\n", buffer[0], buffer2[0]);
DBG(KERN_INFO " %s DMT_DEVICE_NAME registered I2C driver!\n",__FUNCTION__);
}
else{
DBG(KERN_INFO " %s gsensor I2C err @@@ REG_STADR_VALUE = %d , REG_STAINT_VALUE = %d \n", __func__, buffer[0], buffer2[0]);
return -1;
}
/* 2. Powerdown reset */
buffer[0] = REG_PD;
buffer[1] = VALUE_PD_RST;
sensor_tx_data(client, buffer, 2);
/* 3. ACTR => Standby mode => Download OTP to parameter reg => Standby mode => Reset data path => Standby mode */
buffer[0] = REG_ACTR;
buffer[1] = MODE_Standby;
buffer[2] = MODE_ReadOTP;
buffer[3] = MODE_Standby;
buffer[4] = MODE_ResetDataPath;
buffer[5] = MODE_Standby;
sensor_tx_data(client, buffer, 6);
/* 4. OSCA_EN = 1 ,TSTO = b'000(INT1 = normal, TEST0 = normal) */
buffer[0] = REG_MISC2;
buffer[1] = VALUE_MISC2_OSCA_EN;
sensor_tx_data(client, buffer, 2);
/* 5. AFEN = 1(AFE will powerdown after ADC) */
buffer[0] = REG_AFEM;
buffer[1] = VALUE_AFEM_AFEN_Normal;
buffer[2] = VALUE_CKSEL_ODR_100_204;
buffer[3] = VALUE_INTC;
buffer[4] = VALUE_TAPNS_Ave_2;
buffer[5] = 0x00; // DLYC, no delay timing
buffer[6] = 0x07; // INTD=1 (push-pull), INTA=1 (active high), AUTOT=1 (enable T)
sensor_tx_data(client, buffer, 7);
/* 6. write TCGYZ & TCGX */
buffer[0] = REG_WDAL; // REG:0x01
buffer[1] = 0x00; // set TC of Y,Z gain value
buffer[2] = 0x00; // set TC of X gain value
buffer[3] = 0x03; // Temperature coefficient of X,Y,Z gain
sensor_tx_data(client, buffer, 4);
buffer[0] = REG_ACTR; // REG:0x00
buffer[1] = MODE_Standby; // Standby
buffer[2] = MODE_WriteOTPBuf; // WriteOTPBuf
buffer[3] = MODE_Standby; // Standby
/* 7. Activation mode */
buffer[0] = REG_ACTR;
buffer[1] = MODE_Active;
sensor_tx_data(client, buffer, 2);
printk("\n dmard10 gsensor _reset SUCCESS!!\n");
return 0;
}
/****************operate according to sensor chip:start************/
static int sensor_active(struct i2c_client *client, int enable, int rate)
{
struct sensor_private_data *sensor =
(struct sensor_private_data *) i2c_get_clientdata(client);
int result = 0;
int status = 0;
gsensor_reset(client);
sensor->ops->ctrl_data = sensor_read_reg(client, sensor->ops->ctrl_reg);
//register setting according to chip datasheet
if(enable)
{
status = DMARD10_ENABLE; //dmard10
sensor->ops->ctrl_data |= status;
}
else
{
status = ~DMARD10_ENABLE; //dmard10
sensor->ops->ctrl_data &= status;
}
DBG("%s:reg=0x%x,reg_ctrl=0x%x,enable=%d\n",__func__,sensor->ops->ctrl_reg, sensor->ops->ctrl_data, enable);
result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);
if(result)
printk("%s:fail to active sensor\n",__func__);
return result;
}
static int sensor_init(struct i2c_client *client)
{
struct sensor_private_data *sensor =
(struct sensor_private_data *) i2c_get_clientdata(client);
int result = 0;
result = sensor->ops->active(client,0,0);
if(result)
{
printk("%s:line=%d,error\n",__func__,__LINE__);
return result;
}
sensor->status_cur = SENSOR_OFF;
DBG("%s:DMARD10_REG_TILT=0x%x\n",__func__,sensor_read_reg(client, DMARD10_REG_TILT));
result = sensor_write_reg(client, DMARD10_REG_SR, (0x01<<5)| 0x02); //32 Samples/Second Active and Auto-Sleep Mode
if(result)
{
printk("%s:line=%d,error\n",__func__,__LINE__);
return result;
}
if(sensor->pdata->irq_enable) //open interrupt
{
result = sensor_write_reg(client, DMARD10_REG_INTSU, 1<<4);//enable int,GINT=1
if(result)
{
printk("%s:line=%d,error\n",__func__,__LINE__);
return result;
}
}
sensor->ops->ctrl_data = 1<<6; //Interrupt output INT is push-pull
result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);
if(result)
{
printk("%s:line=%d,error\n",__func__,__LINE__);
return result;
}
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)
{
s64 result;
result = ((int)high_byte << 8) | ((int)low_byte);
return result * 128;
}
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);
}
return 0;
}
#define DMARD10_COUNT_AVERAGE 2
#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 buffer[8] = {0};
char value = 0;
if(sensor->ops->read_len < 3) //sensor->ops->read_len = 3
{
printk("%s:lenth is error,len=%d\n",__func__,sensor->ops->read_len);
return -1;
}
memset(buffer, 0, 8);
/* Data bytes from hardware xL, xH, yL, yH, zL, zH */
do {
*buffer = sensor->ops->read_reg;
ret = sensor_rx_data(client, buffer, sensor->ops->read_len);
if (ret < 0)
return ret;
} while (0);
//this gsensor need 6 bytes buffer
x = sensor_convert_data(sensor->client, buffer[3], buffer[2]); //buffer[1]:high bit
y = sensor_convert_data(sensor->client, buffer[5], buffer[4]);
z = sensor_convert_data(sensor->client, buffer[7], buffer[6]);
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;
gsensor_report_value(client, &axis);
mutex_lock(&sensor->data_mutex);
sensor->axis = axis;
mutex_unlock(&sensor->data_mutex);
if((sensor->pdata->irq_enable)&& (sensor->ops->int_status_reg >= 0)) //read sensor intterupt status register
{
value = sensor_read_reg(client, sensor->ops->int_status_reg);
DBG("%s:sensor int status :0x%x\n",__func__,value);
}
return ret;
}
static struct sensor_operate gsensor_dmard10_ops = {
.name = "gs_dmard10",
.type = SENSOR_TYPE_ACCEL,
.id_i2c = ACCEL_ID_DMARD10,
.read_reg = DMARD10_REG_X_OUT,
.read_len = 8,
.id_reg = SENSOR_UNKNOW_DATA,
.id_data = SENSOR_UNKNOW_DATA,
.precision = DMARD10_PRECISION,
.ctrl_reg = DMARD10_REG_MODE,
.int_status_reg = SENSOR_UNKNOW_DATA,
.range = {-65536, 65536},
.trig = IRQF_TRIGGER_LOW | IRQF_ONESHOT,
.active = sensor_active,
.init = sensor_init,
.report = sensor_report_value,
};
/****************operate according to sensor chip:end************/
static int gsensor_dmard10_probe(struct i2c_client *client,
const struct i2c_device_id *devid)
{
return sensor_register_device(client, NULL, devid, &gsensor_dmard10_ops);
}
static int gsensor_dmard10_remove(struct i2c_client *client)
{
return sensor_unregister_device(client, NULL, &gsensor_dmard10_ops);
}
static const struct i2c_device_id gsensor_dmard10_id[] = {
{"gs_dmard10", ACCEL_ID_DMARD10},
{}
};
static struct i2c_driver gsensor_dmard10_driver = {
.probe = gsensor_dmard10_probe,
.remove = gsensor_dmard10_remove,
.shutdown = sensor_shutdown,
.id_table = gsensor_dmard10_id,
.driver = {
.name = "gsensor_dmard10",
#ifdef CONFIG_PM
.pm = &sensor_pm_ops,
#endif
},
};
module_i2c_driver(gsensor_dmard10_driver);
MODULE_AUTHOR("guoyi <gy@rock-chips.com>");
MODULE_DESCRIPTION("dmard10 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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