/*
* MCube mc3230 acceleration sensor driver
*
* Copyright (C) 2011 MCube Inc.,
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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/mc3230.h>
#include <linux/wakelock.h>
#define MITECH_SENSOR_DBG
static int sensor_active(struct i2c_client *client, int enable, int rate);
#define MC32X0_XOUT_REG 0x00
#define MC32X0_YOUT_REG 0x01
#define MC32X0_ZOUT_REG 0x02
#define MC32X0_Tilt_Status_REG 0x03
#define MC32X0_Sampling_Rate_Status_REG 0x04
#define MC32X0_Sleep_Count_REG 0x05
#define MC32X0_Interrupt_Enable_REG 0x06
#define MC32X0_Mode_Feature_REG 0x07
#define MC32X0_Sample_Rate_REG 0x08
#define MC32X0_Tap_Detection_Enable_REG 0x09
#define MC32X0_TAP_Dwell_Reject_REG 0x0a
#define MC32X0_DROP_Control_Register_REG 0x0b
#define MC32X0_SHAKE_Debounce_REG 0x0c
#define MC32X0_XOUT_EX_L_REG 0x0d
#define MC32X0_XOUT_EX_H_REG 0x0e
#define MC32X0_YOUT_EX_L_REG 0x0f
#define MC32X0_YOUT_EX_H_REG 0x10
#define MC32X0_ZOUT_EX_L_REG 0x11
#define MC32X0_ZOUT_EX_H_REG 0x12
#define MC32X0_CHIP_ID_REG 0x18
#define MC32X0_RANGE_Control_REG 0x20
#define MC32X0_SHAKE_Threshold_REG 0x2B
#define MC32X0_UD_Z_TH_REG 0x2C
#define MC32X0_UD_X_TH_REG 0x2D
#define MC32X0_RL_Z_TH_REG 0x2E
#define MC32X0_RL_Y_TH_REG 0x2F
#define MC32X0_FB_Z_TH_REG 0x30
#define MC32X0_DROP_Threshold_REG 0x31
#define MC32X0_TAP_Threshold_REG 0x32
#define MC32X0_MODE_SLEEP 0x00
#define MC32X0_MODE_WAKEUP 0x01
#define MODE_CHANGE_DELAY_MS 100
#define MC3230_MODE_MITECH 0X58
#define MC3230_MODE_BITS 0x03
#define MC3230_PRECISION 8
#define MC3230_RANGE 1500000
#define MC3210_RANGE 8000000
#define MC3230_BOUNDARY (0x1 << (MC3230_PRECISION - 1))
#define MC3230_GRAVITY_STEPS (MC3230_RANGE/MC3230_BOUNDARY)
#define MC3236_RANGE 2000000
#define MC3236_GRAVITY_STEP (MC3236_RANGE/MC3230_BOUNDARY)
/* 8bit data */
#define MC3210_PRECISION 14
#define MC3210_BOUNDARY (0x1 << (MC3210_PRECISION - 1))
/* 110 2g full scale range */
#define MC3210_GRAVITY_STEP (MC3210_RANGE/MC3210_BOUNDARY)
/* rate */
#define MC3230_RATE_1 0x07
#define MC3230_RATE_2 0x06
#define MC3230_RATE_4 0x05
#define MC3230_RATE_8 0x04
#define MC3230_RATE_16 0x03
#define MC3230_RATE_32 0x02
#define MC3230_RATE_64 0x01
#define MC3230_RATE_120 0x00
#define MC32X0_AXIS_X 0
#define MC32X0_AXIS_Y 1
#define MC32X0_AXIS_Z 2
#define MC32X0_AXES_NUM 3
#define MC32X0_DATA_LEN 6
#define MC32X0_DEV_NAME "MC32X0"
#define GRAVITY_EARTH_1000 9807
#define IS_MC3230 1
#define IS_MC3210 2
#define IS_MC2234 3
#define IS_MC3236 4
#define IS_MC3413 5
#define IS_MC3416 6
static const char backup_calib_path[] = "/data/misc/mcube-calib.txt";
static const char calib_path[] =
"/data/data/com.mcube.acc/files/mcube-calib.txt";
static char backup_buf[64];
static GSENSOR_VECTOR3D gsensor_gain;
static struct file *fd_file;
static int load_cali_flg;
static bool READ_FROM_BACKUP;
static mm_segment_t oldfs;
static unsigned char offset_buf[9];
static signed int offset_data[3];
static s16 G_RAW_DATA[3];
static signed int gain_data[3];
static signed int enable_RBM_calibration;
static unsigned char mc32x0_type;
static int g_value;
#define mcprintkreg(x...)
#define mcprintkfunc(x...)
#define GSE_TAG "[Gsensor] "
#define GSE_FUN(f) pr_info(GSE_TAG"%s\n", __func__)
#define GSE_ERR(fmt, args...) pr_info(GSE_TAG"%s %d : "fmt, \
__func__, __LINE__, ##args)
#define GSE_LOG(fmt, args...) pr_info(GSE_TAG fmt, ##args)
#define MC3230_SPEED (200 * 1000)
#define MC3230_DEVID 0x01
/* Addresses to scan -- protected by sense_data_mutex */
static struct i2c_client *this_client;
#ifdef CONFIG_HAS_EARLYSUSPEND
static struct early_suspend mc3230_early_suspend;
#endif
/* status */
#define MC3230_OPEN 1
#define MC3230_CLOSE 0
struct hwmsen_convert {
s8 sign[3];
u8 map[3];
};
struct mc3230_data {
struct sensor_private_data *g_sensor_private_data;
char status;
char curr_rate;
/* +1: for 4-byte alignment */
s16 offset[MC32X0_AXES_NUM + 1];
s16 data[MC32X0_AXES_NUM + 1];
s16 cali_sw[MC32X0_AXES_NUM + 1];
struct hwmsen_convert cvt;
};
static int MC32X0_WriteCalibration(struct i2c_client *client,
int dat[MC32X0_AXES_NUM]);
static int mc3230_write_reg(struct i2c_client *client, int addr, int value);
static int mc3230_read_block(struct i2c_client *client, char reg, char *rxData,
int length);
static int mc3230_active(struct i2c_client *client, int enable);
static void MC32X0_rbm(struct i2c_client *client, int enable);
static int init_3230_ctl_data(struct i2c_client *client);
struct file *openFile(const char *path, int flag, int mode)
{
struct file *fp;
fp = filp_open(path, flag, mode);
if (IS_ERR(fp) || !fp->f_op)
return NULL;
else
return fp;
}
static int readFile(struct file *fp, char *buf, int readlen)
{
if (fp->f_op && fp->f_op->read)
return fp->f_op->read(fp, buf, readlen, &fp->f_pos);
else
return -1;
}
static int writeFile(struct file *fp, char *buf, int writelen)
{
if (fp->f_op && fp->f_op->write)
return fp->f_op->write(fp, buf, writelen, &fp->f_pos);
else
return -1;
}
static int closeFile(struct file *fp)
{
filp_close(fp, NULL);
return 0;
}
static void initKernelEnv(void)
{
oldfs = get_fs();
set_fs(KERNEL_DS);
}
static struct mc3230_data g_mc3230_data = { 0 };
static struct mc3230_data *get_3230_ctl_data(void)
{
return &g_mc3230_data;
}
static int mcube_read_cali_file(struct i2c_client *client)
{
int cali_data[3];
int err = 0;
READ_FROM_BACKUP = false;
initKernelEnv();
fd_file =
openFile("/data/data/com.mcube.acc/files/mcube-calib.txt", 0, 0);
if (!fd_file) {
fd_file = openFile(backup_calib_path, O_RDONLY, 0);
if (fd_file)
READ_FROM_BACKUP = true;
}
if (!fd_file) {
cali_data[0] = 0;
cali_data[1] = 0;
cali_data[2] = 0;
return 1;
} else {
memset(backup_buf, 0, 64);
err = readFile(fd_file, backup_buf, 128);
if (err > 0)
GSE_LOG("buf:%s\n", backup_buf);
else
GSE_LOG("read file error %d\n", err);
set_fs(oldfs);
closeFile(fd_file);
sscanf(backup_buf, "%d %d %d", &cali_data[MC32X0_AXIS_X],
&cali_data[MC32X0_AXIS_Y], &cali_data[MC32X0_AXIS_Z]);
GSE_LOG("cali_data: %d %d %d\n", cali_data[MC32X0_AXIS_X],
cali_data[MC32X0_AXIS_Y], cali_data[MC32X0_AXIS_Z]);
MC32X0_WriteCalibration(client, cali_data);
}
return 0;
}
static void MC32X0_rbm(struct i2c_client *client, int enable)
{
int err;
if (enable == 1) {
err = mc3230_write_reg(client, 0x07, 0x43);
err = mc3230_write_reg(client, 0x14, 0x02);
err = mc3230_write_reg(client, 0x07, 0x41);
enable_RBM_calibration = 1;
GSE_LOG("set rbm!!\n");
msleep(220);
} else if (enable == 0) {
err = mc3230_write_reg(client, 0x07, 0x43);
err = mc3230_write_reg(client, 0x14, 0x00);
err = mc3230_write_reg(client, 0x07, 0x41);
enable_RBM_calibration = 0;
GSE_LOG("clear rbm!!\n");
msleep(220);
}
}
static int MC32X0_ReadData_RBM(struct i2c_client *client,
int data[MC32X0_AXES_NUM])
{
u8 addr = 0x0d;
u8 rbm_buf[MC32X0_DATA_LEN] = { 0 };
int err = 0;
if (!client) {
err = -EINVAL;
return err;
}
err = mc3230_read_block(client, addr, rbm_buf, 0x06);
data[MC32X0_AXIS_X] = (s16)((rbm_buf[0]) | (rbm_buf[1] << 8));
data[MC32X0_AXIS_Y] = (s16)((rbm_buf[2]) | (rbm_buf[3] << 8));
data[MC32X0_AXIS_Z] = (s16)((rbm_buf[4]) | (rbm_buf[5] << 8));
GSE_LOG("rbm_buf<<<<<[%02x %02x %02x %02x %02x %02x]\n", rbm_buf[0],
rbm_buf[2], rbm_buf[2], rbm_buf[3], rbm_buf[4], rbm_buf[5]);
GSE_LOG("RBM<<<<<[%04x %04x %04x]\n", data[MC32X0_AXIS_X],
data[MC32X0_AXIS_Y], data[MC32X0_AXIS_Z]);
GSE_LOG("RBM<<<<<[%04d %04d %04d]\n", data[MC32X0_AXIS_X],
data[MC32X0_AXIS_Y], data[MC32X0_AXIS_Z]);
return err;
}
static int mc3230_read_block(struct i2c_client *client, char reg, char *rxData,
int length)
{
int ret = 0;
*rxData = reg;
ret = sensor_rx_data(client, rxData, length);
return ret;
}
static int mc3230_write_reg(struct i2c_client *client, int addr, int value)
{
char buffer[3];
int ret = 0;
buffer[0] = addr;
buffer[1] = value;
ret = sensor_tx_data(client, &buffer[0], 2);
return ret;
}
static int mc3230_active(struct i2c_client *client, int enable)
{
int tmp;
int ret = 0;
if (enable)
tmp = 0x01;
else
tmp = 0x03;
mcprintkreg("mc3230_active %s (0x%x)\n", enable ? "active" : "standby",
tmp);
ret = mc3230_write_reg(client, MC3230_REG_SYSMOD, tmp);
return ret;
}
static int mc3230_reg_init(struct i2c_client *client)
{
int ret = 0;
int pcode = 0;
/* 1: awake 0: standby */
mc3230_active(client, 0);
pcode = sensor_read_reg(client, MC3230_REG_PRODUCT_CODE);
printk(KERN_INFO "mc3230_reg_init pcode=%x\n", pcode);
if ((pcode == 0x19) || (pcode == 0x29)) {
mc32x0_type = IS_MC3230;
} else if ((pcode == 0x90) || (pcode == 0xA8) || (pcode == 0x88)) {
mc32x0_type = IS_MC3210;
} else if (pcode == 0x59) {
mc32x0_type = IS_MC2234;
}
if ((pcode & 0xF1) == 0x60) {
mc32x0_type = IS_MC3236;
} else if ((pcode & 0xF1) == 0x10) {
mc32x0_type = IS_MC3413;
} else if ((pcode & 0xF1) == 0x20) {
mc32x0_type = IS_MC3416;
}
GSE_LOG("MC3230 1, MC3210 2, MC2234 3, MC3236 4, MC3416 5, MC3416 6:mc32x0_type=%d\n", mc32x0_type);
if ((mc32x0_type == IS_MC3230) || (mc32x0_type == IS_MC2234)) {
ret = sensor_write_reg(client, 0x20, 0x32);
} else if (mc32x0_type == IS_MC3236) {
ret = sensor_write_reg(client, 0x20, 0x02);
} else if (mc32x0_type == IS_MC3210) {
ret = sensor_write_reg(client, 0x20, 0x3F);
} else if (mc32x0_type == IS_MC3413) {
ret = sensor_write_reg(client, 0x20, 0x25);
} else if (mc32x0_type == IS_MC3416) {
ret = sensor_write_reg(client, 0x08, 0x05);
ret = sensor_write_reg(client, 0x20, 0x29);
}
if ((mc32x0_type == IS_MC3230) || (mc32x0_type == IS_MC2234)) {
gsensor_gain.x = gsensor_gain.y = gsensor_gain.z = 86;
} else if (mc32x0_type == IS_MC3236) {
gsensor_gain.x = gsensor_gain.y = gsensor_gain.z = 64;
} else if ((mc32x0_type == IS_MC3210) || (mc32x0_type == IS_MC3413)) {
gsensor_gain.x = gsensor_gain.y = gsensor_gain.z = 1024;
} else if (mc32x0_type == IS_MC3416) {
gsensor_gain.x = gsensor_gain.y = gsensor_gain.z = 4096;
}
return ret;
}
static int init_3230_ctl_data(struct i2c_client *client)
{
int err;
s16 tmp, x_gain, y_gain, z_gain;
s32 x_off, y_off, z_off;
struct mc3230_data *mc3230 = get_3230_ctl_data();
load_cali_flg = 30;
mcprintkfunc("%s enter\n", __func__);
this_client = client;
mc3230->g_sensor_private_data =
(struct sensor_private_data *)i2c_get_clientdata(client);
mc3230->curr_rate = MC3230_RATE_16;
mc3230->status = MC3230_CLOSE;
mc3230->cvt.sign[MC32X0_AXIS_X] = 1;
mc3230->cvt.sign[MC32X0_AXIS_Y] = 1;
mc3230->cvt.sign[MC32X0_AXIS_Z] = 1;
mc3230->cvt.map[MC32X0_AXIS_X] = 0;
mc3230->cvt.map[MC32X0_AXIS_Y] = 1;
mc3230->cvt.map[MC32X0_AXIS_Z] = 2;
sensor_write_reg(client, 0x1b, 0x6d);
sensor_write_reg(client, 0x1b, 0x43);
msleep(5);
sensor_write_reg(client, 0x07, 0x43);
sensor_write_reg(client, 0x1C, 0x80);
sensor_write_reg(client, 0x17, 0x80);
msleep(5);
sensor_write_reg(client, 0x1C, 0x00);
sensor_write_reg(client, 0x17, 0x00);
msleep(5);
memset(offset_buf, 0, 9);
offset_buf[0] = 0x21;
err = sensor_rx_data(client, offset_buf, 9);
if (err) {
GSE_ERR("error: %d\n", err);
return err;
}
tmp = ((offset_buf[1] & 0x3f) << 8) + offset_buf[0];
if (tmp & 0x2000)
tmp |= 0xc000;
x_off = tmp;
tmp = ((offset_buf[3] & 0x3f) << 8) + offset_buf[2];
if (tmp & 0x2000)
tmp |= 0xc000;
y_off = tmp;
tmp = ((offset_buf[5] & 0x3f) << 8) + offset_buf[4];
if (tmp & 0x2000)
tmp |= 0xc000;
z_off = tmp;
/* get x,y,z gain */
x_gain = ((offset_buf[1] >> 7) << 8) + offset_buf[6];
y_gain = ((offset_buf[3] >> 7) << 8) + offset_buf[7];
z_gain = ((offset_buf[5] >> 7) << 8) + offset_buf[8];
/* storege the cerrunt offset data with DOT format */
offset_data[0] = x_off;
offset_data[1] = y_off;
offset_data[2] = z_off;
/* storege the cerrunt Gain data with GOT format */
gain_data[0] = 256 * 8 * 128 / 3 / (40 + x_gain);
gain_data[1] = 256 * 8 * 128 / 3 / (40 + y_gain);
gain_data[2] = 256 * 8 * 128 / 3 / (40 + z_gain);
mc3230_reg_init(this_client);
return 0;
}
static int mc3230_start_dev(struct i2c_client *client, char rate)
{
int ret = 0;
struct mc3230_data *mc3230 = get_3230_ctl_data();
/* standby */
mc3230_active(client, 0);
mcprintkreg("mc3230 MC3230_REG_SYSMOD:%x\n",
mc3230_read_reg(client, MC3230_REG_SYSMOD));
/*data rate */
ret = mc3230_write_reg(client, MC3230_REG_RATE_SAMP, rate);
mc3230->curr_rate = rate;
mcprintkreg("mc3230 MC3230_REG_RATE_SAMP:%x rate=%d\n",
mc3230_read_reg(client, MC3230_REG_RATE_SAMP), rate);
/*wake */
mc3230_active(client, 1);
mcprintkreg("mc3230 MC3230_REG_SYSMOD:%x\n",
mc3230_read_reg(client, MC3230_REG_SYSMOD));
return ret;
}
static int mc3230_start(struct i2c_client *client, char rate)
{
struct mc3230_data *mc3230 = get_3230_ctl_data();
if (mc3230->status == MC3230_OPEN)
return 0;
mc3230->status = MC3230_OPEN;
rate = 0;
return mc3230_start_dev(client, rate);
}
static inline int mc3230_convert_to_int(s16 value)
{
int result = 0;
if ((mc32x0_type == IS_MC3230) || (mc32x0_type == IS_MC2234)) {
result = value * 192;
} else if (mc32x0_type == IS_MC3236) {
result = value * 256;
} else if ((mc32x0_type == IS_MC3210) || (mc32x0_type == IS_MC3413)) {
result = value * 16;
} else if (mc32x0_type == IS_MC3416) {
result = value * 4;
}
return result;
}
static void mc3230_report_value(struct i2c_client *client,
struct sensor_axis *axis)
{
struct sensor_private_data *mc3230 = i2c_get_clientdata(client);
if (mc3230->status_cur == SENSOR_OFF)
return;
if (mc32x0_type == IS_MC2234) {
input_report_abs(mc3230->input_dev, ABS_X, (axis->x));
input_report_abs(mc3230->input_dev, ABS_Y, -(axis->y));
input_report_abs(mc3230->input_dev, ABS_Z, (axis->z));
} else if (mc32x0_type == IS_MC3236) {
input_report_abs(mc3230->input_dev, ABS_X, -(axis->x));
input_report_abs(mc3230->input_dev, ABS_Y, (axis->y));
input_report_abs(mc3230->input_dev, ABS_Z, -(axis->z));
} else if (mc32x0_type == IS_MC3416) {
input_report_abs(mc3230->input_dev, ABS_X, (axis->x));
input_report_abs(mc3230->input_dev, ABS_Y, -(axis->y));
input_report_abs(mc3230->input_dev, ABS_Z, -(axis->z));
} else {
input_report_abs(mc3230->input_dev, ABS_X, (axis->y));
input_report_abs(mc3230->input_dev, ABS_Y, (axis->x));
input_report_abs(mc3230->input_dev, ABS_Z, (axis->z));
}
input_sync(mc3230->input_dev);
}
static int MC32X0_ReadData(struct i2c_client *client,
s16 buffer[MC32X0_AXES_NUM]);
static int mc3230_get_data(struct i2c_client *client)
{
struct sensor_private_data *sensor =
(struct sensor_private_data *)i2c_get_clientdata(client);
struct sensor_platform_data *pdata = sensor->pdata;
s16 buffer[6];
int ret;
int x, y, z;
int value = 0;
static int flag;
struct sensor_axis axis;
if (load_cali_flg > 0) {
ret = mcube_read_cali_file(client);
if (ret == 0)
load_cali_flg = ret;
else
load_cali_flg--;
}
ret = MC32X0_ReadData(client, buffer);
if (ret) {
GSE_ERR("%s I2C error: ret value=%d", __func__, ret);
return -EIO;
}
value = sensor_read_reg(client, 0x20);
if (value == 0x00) {
static int cnt;
if (cnt++ >= 20) {
sensor_active(client, 1, 0xff);
cnt = 0;
}
g_value = 4;
} else if (value == 0x01) {
g_value = 2;
} else
g_value = 1;
x = mc3230_convert_to_int(buffer[0]) * g_value;
y = mc3230_convert_to_int(buffer[1]) * g_value;
z = mc3230_convert_to_int(buffer[2]) * g_value;
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;
/* 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;
}
}
mc3230_report_value(client, &axis);
mutex_lock(&sensor->data_mutex);
sensor->axis = axis;
mutex_unlock(&sensor->data_mutex);
return 0;
}
static int MC32X0_ReadRBMData(struct i2c_client *client, char *buf)
{
struct mc3230_data *mc3230 =
(struct mc3230_data *)i2c_get_clientdata(client);
int res = 0;
int data[3];
if (!buf || !client)
return -EINVAL;
if (mc3230->status == MC3230_CLOSE) {
res = mc3230_start(client, 0);
if (res)
GSE_ERR("Power on mc32x0 error %d!\n", res);
}
res = MC32X0_ReadData_RBM(client, data);
if (res) {
GSE_ERR("%s I2C error: ret value=%d", __func__, res);
return -EIO;
} else {
sprintf(buf, "%04x %04x %04x", data[MC32X0_AXIS_X],
data[MC32X0_AXIS_Y], data[MC32X0_AXIS_Z]);
}
return 0;
}
static int MC32X0_ReadOffset(struct i2c_client *client,
s16 ofs[MC32X0_AXES_NUM])
{
int err;
u8 off_data[6];
off_data[0] = MC32X0_XOUT_EX_L_REG;
if ((mc32x0_type == IS_MC3210) || (mc32x0_type == IS_MC3413)
|| (mc32x0_type == IS_MC3416)) {
err = sensor_rx_data(client, off_data, MC32X0_DATA_LEN);
if (err) {
GSE_ERR("error: %d\n", err);
return err;
}
ofs[MC32X0_AXIS_X] =
((s16)(off_data[0])) | ((s16)(off_data[1]) << 8);
ofs[MC32X0_AXIS_Y] =
((s16)(off_data[2])) | ((s16)(off_data[3]) << 8);
ofs[MC32X0_AXIS_Z] =
((s16)(off_data[4])) | ((s16)(off_data[5]) << 8);
} else if ((mc32x0_type == IS_MC3230) || (mc32x0_type == IS_MC2234)) {
err = sensor_rx_data(client, off_data, MC32X0_DATA_LEN);
if (err) {
GSE_ERR("error: %d\n", err);
return err;
}
ofs[MC32X0_AXIS_X] = (s8)off_data[0];
ofs[MC32X0_AXIS_Y] = (s8)off_data[1];
ofs[MC32X0_AXIS_Z] = (s8)off_data[2];
}
GSE_LOG("MC32X0_ReadOffset %d %d %d \n", ofs[MC32X0_AXIS_X],
ofs[MC32X0_AXIS_Y], ofs[MC32X0_AXIS_Z]);
return 0;
}
static int MC32X0_ResetCalibration(struct i2c_client *client)
{
struct mc3230_data *mc3230 = get_3230_ctl_data();
s16 tmp, i;
sensor_write_reg(client, 0x07, 0x43);
for (i = 0; i < 6; i++) {
sensor_write_reg(client, 0x21 + i, offset_buf[i]);
msleep(10);
}
sensor_write_reg(client, 0x07, 0x41);
msleep(20);
/* add by Liang for set offset_buf as OTP value */
tmp = ((offset_buf[1] & 0x3f) << 8) + offset_buf[0];
if (tmp & 0x2000)
tmp |= 0xc000;
offset_data[0] = tmp;
tmp = ((offset_buf[3] & 0x3f) << 8) + offset_buf[2];
if (tmp & 0x2000)
tmp |= 0xc000;
offset_data[1] = tmp;
tmp = ((offset_buf[5] & 0x3f) << 8) + offset_buf[4];
if (tmp & 0x2000)
tmp |= 0xc000;
offset_data[2] = tmp;
memset(mc3230->cali_sw, 0x00, sizeof(mc3230->cali_sw));
return 0;
}
static int MC32X0_ReadCalibration(struct i2c_client *client,
int dat[MC32X0_AXES_NUM])
{
struct mc3230_data *mc3230 = get_3230_ctl_data();
int err;
err = MC32X0_ReadOffset(client, mc3230->offset);
if (err) {
GSE_ERR("read offset fail, %d\n", err);
return err;
}
dat[MC32X0_AXIS_X] = mc3230->offset[MC32X0_AXIS_X];
dat[MC32X0_AXIS_Y] = mc3230->offset[MC32X0_AXIS_Y];
dat[MC32X0_AXIS_Z] = mc3230->offset[MC32X0_AXIS_Z];
return 0;
}
static int MC32X0_WriteCalibration(struct i2c_client *client,
int dat[MC32X0_AXES_NUM])
{
int err;
u8 buf[9], i;
s16 tmp, x_gain, y_gain, z_gain;
s32 x_off, y_off, z_off;
GSE_LOG("UPDATE dat: (%+3d %+3d %+3d)\n",
dat[MC32X0_AXIS_X], dat[MC32X0_AXIS_Y], dat[MC32X0_AXIS_Z]);
/* read register 0x21~0x28 */
buf[0] = 0x21;
err = sensor_rx_data(client, &buf[0], 3);
buf[3] = 0x24;
err = sensor_rx_data(client, &buf[3], 3);
buf[6] = 0x27;
err = sensor_rx_data(client, &buf[6], 3);
/* get x,y,z offset */
tmp = ((buf[1] & 0x3f) << 8) + buf[0];
if (tmp & 0x2000)
tmp |= 0xc000;
x_off = tmp;
tmp = ((buf[3] & 0x3f) << 8) + buf[2];
if (tmp & 0x2000)
tmp |= 0xc000;
y_off = tmp;
tmp = ((buf[5] & 0x3f) << 8) + buf[4];
if (tmp & 0x2000)
tmp |= 0xc000;
z_off = tmp;
/* get x,y,z gain */
x_gain = ((buf[1] >> 7) << 8) + buf[6];
y_gain = ((buf[3] >> 7) << 8) + buf[7];
z_gain = ((buf[5] >> 7) << 8) + buf[8];
/* prepare new offset */
x_off =
x_off +
16 * dat[MC32X0_AXIS_X] * 256 * 128 / 3 / gsensor_gain.x / (40 +
x_gain);
y_off =
y_off +
16 * dat[MC32X0_AXIS_Y] * 256 * 128 / 3 / gsensor_gain.y / (40 +
y_gain);
z_off =
z_off +
16 * dat[MC32X0_AXIS_Z] * 256 * 128 / 3 / gsensor_gain.z / (40 +
z_gain);
/* storege the cerrunt offset data with DOT format */
offset_data[0] = x_off;
offset_data[1] = y_off;
offset_data[2] = z_off;
/* storege the cerrunt Gain data with GOT format */
gain_data[0] = 256 * 8 * 128 / 3 / (40 + x_gain);
gain_data[1] = 256 * 8 * 128 / 3 / (40 + y_gain);
gain_data[2] = 256 * 8 * 128 / 3 / (40 + z_gain);
sensor_write_reg(client, 0x07, 0x43);
buf[0] = x_off & 0xff;
buf[1] = ((x_off >> 8) & 0x3f) | (x_gain & 0x0100 ? 0x80 : 0);
buf[2] = y_off & 0xff;
buf[3] = ((y_off >> 8) & 0x3f) | (y_gain & 0x0100 ? 0x80 : 0);
buf[4] = z_off & 0xff;
buf[5] = ((z_off >> 8) & 0x3f) | (z_gain & 0x0100 ? 0x80 : 0);
for (i = 0; i < 6; i++) {
sensor_write_reg(client, 0x21 + i, buf[i]);
msleep(10);
}
sensor_write_reg(client, 0x07, 0x41);
return err;
}
static int MC32X0_ReadData(struct i2c_client *client,
s16 buffer[MC32X0_AXES_NUM])
{
s8 buf[3];
u8 buf1[6];
char rbm_buf[6];
int ret;
int err = 0;
int tempX = 0;
int tempY = 0;
int tempZ = 0;
if (!client) {
err = -EINVAL;
return err;
}
mcprintkfunc("MC32X0_ReadData enable_RBM_calibration = %d\n",
enable_RBM_calibration);
if (enable_RBM_calibration == 0) {
;
} else if (enable_RBM_calibration == 1) {
memset(rbm_buf, 0, 3);
rbm_buf[0] = MC3230_REG_RBM_DATA;
ret = sensor_rx_data(client, &rbm_buf[0], 2);
rbm_buf[2] = MC3230_REG_RBM_DATA + 2;
ret = sensor_rx_data(client, &rbm_buf[2], 2);
rbm_buf[4] = MC3230_REG_RBM_DATA + 4;
ret = sensor_rx_data(client, &rbm_buf[4], 2);
}
mcprintkfunc("MC32X0_ReadData %d %d %d %d %d %d\n", rbm_buf[0],
rbm_buf[1], rbm_buf[2], rbm_buf[3], rbm_buf[4],
rbm_buf[5]);
if (enable_RBM_calibration == 0) {
do {
memset(buf, 0, 3);
buf[0] = MC3230_REG_X_OUT;
ret = sensor_rx_data(client, &buf[0], 3);
if (ret < 0)
return ret;
} while (0);
buffer[0] = (s16)buf[0];
buffer[1] = (s16)buf[1];
buffer[2] = (s16)buf[2];
if (mc32x0_type == IS_MC2234) {
tempX = buffer[MC32X0_AXIS_X];
tempY = buffer[MC32X0_AXIS_Y];
tempZ = buffer[MC32X0_AXIS_Z];
buffer[MC32X0_AXIS_Z] =
(s8)(gsensor_gain.z - (abs(tempX) + abs(tempY)));
}
else if ((mc32x0_type == IS_MC3210)
|| (mc32x0_type == IS_MC3413)
|| (mc32x0_type == IS_MC3416)) {
do {
memset(buf1, 0, 6);
buf[0] = MC32X0_XOUT_EX_L_REG;
buf1[0] =
sensor_read_reg(client,
MC32X0_XOUT_EX_L_REG);
buf1[1] =
sensor_read_reg(client,
MC32X0_XOUT_EX_L_REG + 1);
buf1[2] =
sensor_read_reg(client,
MC32X0_XOUT_EX_L_REG + 2);
buf1[3] =
sensor_read_reg(client,
MC32X0_XOUT_EX_L_REG + 3);
buf1[4] =
sensor_read_reg(client,
MC32X0_XOUT_EX_L_REG + 4);
buf1[5] =
sensor_read_reg(client,
MC32X0_XOUT_EX_L_REG + 5);
} while (0);
buffer[0] = (signed short)((buf1[0]) | (buf1[1] << 8));
buffer[1] = (signed short)((buf1[2]) | (buf1[3] << 8));
buffer[2] = (signed short)((buf1[4]) | (buf1[5] << 8));
}
} else if (enable_RBM_calibration == 1) {
buffer[MC32X0_AXIS_X] =
(s16)((rbm_buf[0]) | (rbm_buf[1] << 8));
buffer[MC32X0_AXIS_Y] =
(s16)((rbm_buf[2]) | (rbm_buf[3] << 8));
buffer[MC32X0_AXIS_Z] =
(s16)((rbm_buf[4]) | (rbm_buf[5] << 8));
mcprintkfunc("%s RBM<<<<<[%08d %08d %08d]\n", __func__,
buffer[MC32X0_AXIS_X], buffer[MC32X0_AXIS_Y],
buffer[MC32X0_AXIS_Z]);
if (gain_data[0] == 0) {
buffer[MC32X0_AXIS_X] = 0;
buffer[MC32X0_AXIS_Y] = 0;
buffer[MC32X0_AXIS_Z] = 0;
return 0;
}
buffer[MC32X0_AXIS_X] =
(buffer[MC32X0_AXIS_X] +
offset_data[0] / 2) * gsensor_gain.x / gain_data[0];
buffer[MC32X0_AXIS_Y] =
(buffer[MC32X0_AXIS_Y] +
offset_data[1] / 2) * gsensor_gain.y / gain_data[1];
buffer[MC32X0_AXIS_Z] =
(buffer[MC32X0_AXIS_Z] +
offset_data[2] / 2) * gsensor_gain.z / gain_data[2];
if (mc32x0_type == IS_MC2234) {
tempX = buffer[MC32X0_AXIS_X];
tempY = buffer[MC32X0_AXIS_Y];
tempZ = buffer[MC32X0_AXIS_Z];
buffer[MC32X0_AXIS_Z] =
(s16)(gsensor_gain.z - (abs(tempX) + abs(tempY)));
}
}
return 0;
}
static int MC32X0_ReadRawData(struct i2c_client *client, char *buf)
{
struct mc3230_data *obj = get_3230_ctl_data();
int res = 0;
s16 raw_buf[3];
if (!buf || !client)
return -EINVAL;
if (obj->status == MC3230_CLOSE) {
res = mc3230_start(client, 0);
if (res)
GSE_ERR("Power on mc32x0 error %d!\n", res);
}
res = MC32X0_ReadData(client, &raw_buf[0]);
if (res) {
GSE_LOG("%s %d\n", __func__, __LINE__);
GSE_ERR("I2C error: ret value=%d", res);
return -EIO;
} else {
GSE_LOG("UPDATE dat: (%+3d %+3d %+3d)\n",
raw_buf[MC32X0_AXIS_X], raw_buf[MC32X0_AXIS_Y],
raw_buf[MC32X0_AXIS_Z]);
G_RAW_DATA[MC32X0_AXIS_X] = raw_buf[0];
G_RAW_DATA[MC32X0_AXIS_Y] = raw_buf[1];
G_RAW_DATA[MC32X0_AXIS_Z] = raw_buf[2];
G_RAW_DATA[MC32X0_AXIS_Z] =
G_RAW_DATA[MC32X0_AXIS_Z] + gsensor_gain.z;
sprintf(buf, "%04x %04x %04x", G_RAW_DATA[MC32X0_AXIS_X],
G_RAW_DATA[MC32X0_AXIS_Y], G_RAW_DATA[MC32X0_AXIS_Z]);
GSE_LOG("G_RAW_DATA: (%+3d %+3d %+3d)\n",
G_RAW_DATA[MC32X0_AXIS_X], G_RAW_DATA[MC32X0_AXIS_Y],
G_RAW_DATA[MC32X0_AXIS_Z]);
}
return 0;
}
static void mcube_copy_file(const char *dstfilepath)
{
int err = 0;
initKernelEnv();
fd_file = openFile(dstfilepath, O_RDWR, 0);
if (!fd_file) {
GSE_LOG("open %s fail\n", dstfilepath);
return;
}
err = writeFile(fd_file, backup_buf, 64);
if (err > 0)
GSE_LOG("buf:%s\n", backup_buf);
else
GSE_LOG("write file error %d\n", err);
set_fs(oldfs);
closeFile(fd_file);
}
long mc3230_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
struct i2c_client *client)
{
void __user *argp = (void __user *)arg;
char strbuf[256];
void __user *data;
SENSOR_DATA sensor_data;
int err = 0;
int cali[3];
struct mc3230_data *p_mc3230_data = get_3230_ctl_data();
struct sensor_axis sense_data = { 0 };
mcprintkreg("mc3230_ioctl cmd is %d.", cmd);
switch (cmd) {
case GSENSOR_IOCTL_READ_SENSORDATA:
case GSENSOR_IOCTL_READ_RAW_DATA:
GSE_LOG("fwq GSENSOR_IOCTL_READ_RAW_DATA\n");
data = (void __user *)arg;
MC32X0_ReadRawData(client, strbuf);
if (copy_to_user(data, &strbuf, strlen(strbuf) + 1)) {
err = -EFAULT;
break;
}
break;
case GSENSOR_IOCTL_SET_CALI:
GSE_LOG("fwq GSENSOR_IOCTL_SET_CALI!!\n");
break;
case GSENSOR_MCUBE_IOCTL_SET_CALI:
GSE_LOG("fwq GSENSOR_MCUBE_IOCTL_SET_CALI!!\n");
data = (void __user *)arg;
if (!data) {
err = -EINVAL;
break;
}
if (copy_from_user(&sensor_data, data, sizeof(sensor_data))) {
err = -EFAULT;
break;
} else {
cali[MC32X0_AXIS_X] = sensor_data.x;
cali[MC32X0_AXIS_Y] = sensor_data.y;
cali[MC32X0_AXIS_Z] = sensor_data.z;
GSE_LOG
("MCUBE_IOCTL_SET_CALI %d %d %d %d %d %d!!\n",
cali[MC32X0_AXIS_X], cali[MC32X0_AXIS_Y],
cali[MC32X0_AXIS_Z], sensor_data.x, sensor_data.y,
sensor_data.z);
err = MC32X0_WriteCalibration(client, cali);
}
break;
case GSENSOR_IOCTL_CLR_CALI:
GSE_LOG("fwq GSENSOR_IOCTL_CLR_CALI!!\n");
err = MC32X0_ResetCalibration(client);
break;
case GSENSOR_IOCTL_GET_CALI:
GSE_LOG("fwq mc32x0 GSENSOR_IOCTL_GET_CALI\n");
data = (void __user *)arg;
if (!data) {
err = -EINVAL;
break;
}
err = MC32X0_ReadCalibration(client, cali);
if (err) {
GSE_LOG
("fwq mc32x0 MC32X0_ReadCalibration error!!!!\n");
break;
}
sensor_data.x = p_mc3230_data->cali_sw[MC32X0_AXIS_X];
sensor_data.y = p_mc3230_data->cali_sw[MC32X0_AXIS_Y];
sensor_data.z = p_mc3230_data->cali_sw[MC32X0_AXIS_Z];
if (copy_to_user(data, &sensor_data, sizeof(sensor_data))) {
err = -EFAULT;
break;
}
break;
case GSENSOR_IOCTL_SET_CALI_MODE:
GSE_LOG("fwq mc32x0 GSENSOR_IOCTL_SET_CALI_MODE\n");
break;
case GSENSOR_MCUBE_IOCTL_READ_RBM_DATA:
GSE_LOG("fwq GSENSOR_MCUBE_IOCTL_READ_RBM_DATA\n");
data = (void __user *)arg;
if (!data) {
err = -EINVAL;
break;
}
MC32X0_ReadRBMData(client, (char *)&strbuf);
if (copy_to_user(data, &strbuf, strlen(strbuf) + 1)) {
err = -EFAULT;
break;
}
break;
case GSENSOR_MCUBE_IOCTL_SET_RBM_MODE:
GSE_LOG("fwq GSENSOR_MCUBE_IOCTL_SET_RBM_MODE\n");
if (READ_FROM_BACKUP == true) {
mcube_copy_file(calib_path);
READ_FROM_BACKUP = false;
}
MC32X0_rbm(client, 1);
break;
case GSENSOR_MCUBE_IOCTL_CLEAR_RBM_MODE:
GSE_LOG("fwq GSENSOR_MCUBE_IOCTL_SET_RBM_MODE\n");
MC32X0_rbm(client, 0);
break;
case GSENSOR_MCUBE_IOCTL_REGISTER_MAP:
GSE_LOG("fwq GSENSOR_MCUBE_IOCTL_REGISTER_MAP\n");
break;
default:
return -ENOTTY;
}
switch (cmd) {
case MC_IOCTL_GETDATA:
if (copy_to_user(argp, &sense_data, sizeof(sense_data))) {
GSE_LOG("failed to copy sense data to user space.");
return -EFAULT;
}
break;
case GSENSOR_IOCTL_READ_RAW_DATA:
case GSENSOR_IOCTL_READ_SENSORDATA:
if (copy_to_user(argp, &strbuf, strlen(strbuf) + 1)) {
GSE_LOG("failed to copy sense data to user space.");
return -EFAULT;
}
break;
default:
break;
}
return 0;
}
/* odr table, hz */
static const int odr_table[8] = {
1, 2, 4, 8, 16, 32, 64, 128
};
static int mc3230_select_odr(int want)
{
int i;
int max_index = ARRAY_SIZE(odr_table);
for (i = 0; i < max_index; i++) {
if (want <= odr_table[i])
return max_index - i - 1;
}
return 0;
}
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 mc3230_rate = 0;
if (rate == 0) {
dev_err(&client->dev, "%s: rate == 0!!!\n", __func__);
return -1;
}
mc3230_rate = mc3230_select_odr(1000 / rate);
mc3230_rate = 0xf8 | (0x07 & mc3230_rate);
if (rate != 0xff)
result =
sensor_write_reg(client, MC32X0_Sample_Rate_REG,
mc3230_rate);
if (result) {
pr_info("%s:line=%d,error\n", __func__, __LINE__);
return result;
}
sensor->ops->ctrl_data = sensor_read_reg(client, sensor->ops->ctrl_reg);
if (!enable) {
sensor->ops->ctrl_data &= ~MC3230_MODE_BITS;
sensor->ops->ctrl_data |= MC32X0_MODE_SLEEP;
} else {
sensor->ops->ctrl_data &= ~MC3230_MODE_BITS;
sensor->ops->ctrl_data |= MC32X0_MODE_WAKEUP;
}
result =
sensor_write_reg(client, sensor->ops->ctrl_reg,
sensor->ops->ctrl_data);
if (result)
GSE_LOG("%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;
if (init_3230_ctl_data(client))
return -1;
result = sensor->ops->active(client, 0, sensor->pdata->poll_delay_ms);
if (result) {
GSE_LOG("%s:line=%d,error\n", __func__, __LINE__);
return result;
}
sensor->status_cur = SENSOR_OFF;
result = sensor_write_reg(client, MC32X0_Interrupt_Enable_REG, 0x10);
if (result) {
GSE_LOG("%s:line=%d,error\n", __func__, __LINE__);
return result;
}
result = sensor->ops->active(client, 1, 31);
if (result) {
GSE_LOG("%s:line=%d,error\n", __func__, __LINE__);
return result;
}
return result;
}
static int sensor_report_value(struct i2c_client *client)
{
int ret = 0;
mc3230_get_data(client);
return ret;
}
static struct sensor_operate gsensor_ops = {
.name = "gs_mc3230",
/*sensor type and it should be correct */
.type = SENSOR_TYPE_ACCEL,
/* i2c id number */
.id_i2c = ACCEL_ID_MC3230,
/* read data */
.read_reg = MC32X0_XOUT_REG,
/* data length */
.read_len = 3,
/* read device id from this register, but mc3230 has no id register */
.id_reg = SENSOR_UNKNOW_DATA,
/* device id */
.id_data = SENSOR_UNKNOW_DATA,
/* 6 bits */
.precision = 6,
/* enable or disable */
.ctrl_reg = MC32X0_Mode_Feature_REG,
/* intterupt status register */
.int_status_reg = MC32X0_Interrupt_Enable_REG,
.range = {-32768, 32768},
.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_mc3230_probe(struct i2c_client *client,
const struct i2c_device_id *devid)
{
return sensor_register_device(client, NULL, devid, &gsensor_ops);
}
static int gsensor_mc3230_remove(struct i2c_client *client)
{
return sensor_unregister_device(client, NULL, &gsensor_ops);
}
static const struct i2c_device_id gsensor_mc3230_id[] = {
{"gs_mc3230", ACCEL_ID_MC3230},
{}
};
static struct i2c_driver gsensor_mc3230_driver = {
.probe = gsensor_mc3230_probe,
.remove = gsensor_mc3230_remove,
.shutdown = sensor_shutdown,
.id_table = gsensor_mc3230_id,
.driver = {
.name = "gsensor_mc3230",
#ifdef CONFIG_PM
.pm = &sensor_pm_ops,
#endif
},
};
module_i2c_driver(gsensor_mc3230_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("mc3230 3-Axis accelerometer driver");
MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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