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lineage_kernel_xcoverpro/drivers/sensorhub/isg5320a.c

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initial commit
2023-06-18 22:53:49 +00:00
/*
* Copyright (C) 2010,Imagis Technology Co. Ltd. All Rights Reserved.
*
* 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/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <linux/wakelock.h>
#include <linux/interrupt.h>
#include <linux/regulator/consumer.h>
#include <linux/power_supply.h>
#include <linux/vmalloc.h>
#if defined(CONFIG_MUIC_NOTIFIER)
#include <linux/muic/muic.h>
#include <linux/muic/muic_notifier.h>
#endif
#if defined(CONFIG_CCIC_NOTIFIER) || defined(CONFIG_PDIC_NOTIFIER)
#include <linux/usb/typec/pdic_notifier.h>
#endif
#if defined(CONFIG_USB_TYPEC_MANAGER_NOTIFIER)
#include <linux/usb/typec/usb_typec_manager_notifier.h>
#endif
#include "isg5320a_reg.h"
#define CHIP_ID 0x32
#define DEVICE_NAME "ISG5320A"
#define VENDOR_NAME "IMAGIS"
#define MODULE_NAME "grip_sensor"
#define ISG5320A_MODE_SLEEP 0
#define ISG5320A_MODE_NORMAL 1
#define ISG5320A_DIFF_AVR_CNT 10
#define ISG5320A_DISPLAY_TIME 30
#define ISG5320A_TAG "[ISG5320A]"
#if IS_ENABLED(CONFIG_HALL_NEW_NODE)
#define HALLIC_PATH "/sys/class/sec/hall_ic/hall_detect"
#define HALLIC_CERT_PATH "/sys/class/sec/hall_ic/certify_hall_detect"
#else
#define HALLIC_PATH "/sys/class/sec/sec_key/hall_detect"
#define HALLIC_CERT_PATH "/sys/class/sec/sec_key/certify_hall_detect"
#endif
#define ISG5320A_INIT_DELAYEDWORK
#define GRIP_LOG_TIME 40 /* 20 sec */
#pragma pack(1)
typedef struct {
char cmd;
u8 addr;
u8 val;
} direct_info;
#pragma pack()
struct isg5320a_data {
struct i2c_client *client;
struct input_dev *input_dev;
struct device *dev;
struct delayed_work debug_work;
struct delayed_work cal_work;
struct work_struct force_cal_work;
#ifdef ISG5320A_INIT_DELAYEDWORK
struct delayed_work init_work;
#endif
struct wake_lock grip_wake_lock;
struct mutex lock;
#ifdef CONFIG_MUIC_NOTIFIER
struct notifier_block cpuidle_muic_nb;
#endif
#if defined(CONFIG_CCIC_NOTIFIER) || defined(CONFIG_PDIC_NOTIFIER)
struct notifier_block cpuidle_ccic_nb;
#endif
int gpio_int;
int enable;
int state;
bool skip_data;
int initialized;
u16 normal_th;
u32 cdc;
u32 base;
s32 diff;
s32 max_diff;
s32 max_normal_diff;
int diff_cnt;
int diff_sum;
int diff_avg;
int cdc_sum;
int cdc_avg;
u32 debug_cdc[3];
s32 debug_diff[3];
u32 debug_base[2];
int irq_count;
int abnormal_mode;
u16 fine_coarse;
u32 cfcal_th;
bool bfcal_chk_ready;
bool bfcal_chk_start;
u32 bfcal_chk_count;
u32 bfcal_chk_cdc;
s32 bfcal_chk_diff;
int debug_cnt;
u8 intr_debug_addr;
int intr_debug_size;
direct_info direct;
int hall_flag;
int hall_cert_flag;
int hallic_detect;
int hallic_cert_detect;
unsigned char hall_ic[6];
};
static int check_hallic_state(char *file_path, unsigned char hall_ic_status[])
{
int ret = 0;
mm_segment_t old_fs;
struct file *filep;
u8 hall_sysfs[5];
old_fs = get_fs();
set_fs(KERNEL_DS);
filep = filp_open(file_path, O_RDONLY, 0666);
if (IS_ERR(filep)) {
ret = PTR_ERR(filep);
set_fs(old_fs);
goto exit;
}
ret = vfs_read(filep, hall_sysfs, sizeof(hall_sysfs),
&filep->f_pos);
if (ret != sizeof(hall_sysfs))
ret = -EIO;
else
strncpy(hall_ic_status, hall_sysfs, sizeof(hall_sysfs));
filp_close(filep, current->files);
set_fs(old_fs);
exit:
return ret;
}
static int isg5320a_i2c_write(struct isg5320a_data *data, u8 cmd, u8 *val,
int len)
{
int ret;
u8 buf[sizeof(cmd) + len];
struct i2c_msg msg;
buf[0] = cmd;
memcpy(buf + sizeof(cmd), val, len);
msg.addr = data->client->addr;
msg.flags = 0; /*I2C_M_WR*/
msg.len = sizeof(cmd) + len;
msg.buf = buf;
ret = i2c_transfer(data->client->adapter, &msg, 1);
if (ret < 0)
pr_err("%s %s: i2c_transfer failed(%d)\n", ISG5320A_TAG, __func__, ret);
return ret;
}
static int isg5320a_i2c_write_one(struct isg5320a_data *data, u8 cmd, u8 val)
{
int ret;
u8 buf[2];
struct i2c_msg msg;
buf[0] = cmd;
buf[1] = val;
msg.addr = data->client->addr;
msg.flags = 0; /*I2C_M_WR*/
msg.len = 2;
msg.buf = buf;
ret = i2c_transfer(data->client->adapter, &msg, 1);
if (ret < 0)
pr_err("%s %s: i2c_transfer failed(%d)\n", ISG5320A_TAG, __func__, ret);
return ret;
}
static int isg5320a_i2c_read(struct isg5320a_data *data, u8 cmd, u8 *val,
int len)
{
int ret;
struct i2c_msg msgs[2] = {
{
.addr = data->client->addr,
.flags = 0,
.len = sizeof(cmd),
.buf = &cmd,
},
{
.addr = data->client->addr,
.flags = I2C_M_RD,
.len = len,
.buf = val,
},
};
ret = i2c_transfer(data->client->adapter, msgs, 2);
if (ret < 0)
pr_err("%s %s: i2c_transfer failed(%d)\n", ISG5320A_TAG, __func__, ret);
return ret;
}
static int isg5320a_reset(struct isg5320a_data *data)
{
int ret = 0;
int cnt = 0;
u8 val;
pr_info("%s %s\n", ISG5320A_TAG, __func__);
if (data->initialized == OFF)
usleep_range(5000, 5100);
ret = isg5320a_i2c_read(data, ISG5320A_IRQSRC_REG, &val, 1);
if (ret < 0)
pr_err("%s irq to high failed(%d)\n", ISG5320A_TAG, ret);
while (gpio_get_value_cansleep(data->gpio_int) == 0 && cnt++ < 10)
usleep_range(5000, 5100);
if (cnt >= 10)
pr_err("%s wait irq to high failed\n", ISG5320A_TAG);
ret = isg5320a_i2c_write_one(data, ISG5320A_PROTECT_REG,
ISG5320A_PRT_VALUE);
if (ret < 0)
pr_err("%s unlock protect failed(%d)\n", ISG5320A_TAG, ret);
ret = isg5320a_i2c_write_one(data, ISG5320A_SOFTRESET_REG,
ISG5320A_RST_VALUE);
if (ret < 0)
pr_err("%s soft reset failed(%d)\n", ISG5320A_TAG, ret);
usleep_range(1000, 1100);
cnt = 0;
while (gpio_get_value_cansleep(data->gpio_int) != 0 && cnt++ < 10)
usleep_range(5000, 5100);
if (cnt >= 10) {
pr_err("%s wait soft reset failed\n", ISG5320A_TAG);
return -EIO;
} else {
pr_info("%s wait cnt:%d\n", ISG5320A_TAG, cnt);
}
return ret;
}
static void isg5320a_force_calibration(struct isg5320a_data *data,
bool only_bfcal)
{
mutex_lock(&data->lock);
pr_info("%s %s(%d)\n", ISG5320A_TAG, __func__, only_bfcal ? 1 : 0);
if (!only_bfcal) {
isg5320a_i2c_write_one(data, ISG5320A_SCANCTRL1_REG,
ISG5320A_SCAN_STOP);
isg5320a_i2c_write_one(data, ISG5320A_BS_ON_WD_REG, ISG5320A_BS_WD_OFF);
isg5320a_i2c_write_one(data, ISG5320A_SCANCTRL2_REG,
ISG5320A_SCAN2_CLEAR);
msleep(100);
isg5320a_i2c_write_one(data, ISG5320A_OSCCON_REG, ISG5320A_OSC_NOMAL);
isg5320a_i2c_write_one(data, ISG5320A_BS_ON_WD_REG, ISG5320A_BS_WD_ON);
isg5320a_i2c_write_one(data, ISG5320A_SCANCTRL2_REG,
ISG5320A_SCAN2_RESET);
isg5320a_i2c_write_one(data, ISG5320A_SCANCTRL1_REG,
ISG5320A_CFCAL_START);
msleep(300);
}
isg5320a_i2c_write_one(data, ISG5320A_SCANCTRL2_REG, ISG5320A_BFCAL_START);
msleep(100);
mutex_unlock(&data->lock);
}
static inline unsigned char str2int(unsigned char c)
{
if (c >= '0' && c <= '9')
return c - '0';
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
if (c >= 'a' && c <= 'f')
return c - 'a' + 10;
return 0;
}
static int isg5320a_setup_reg(struct isg5320a_data *data)
{
int ret;
int i;
long file_size = 0;
uint8_t *file_data;
struct file *fp = NULL;
loff_t pos;
mm_segment_t old_fs = { 0 };
u8 addr = 0;
u8 val = 0;
old_fs = get_fs();
set_fs(get_ds());
fp = filp_open("/sdcard/isg5320a.reg", O_RDONLY, 0);
if (IS_ERR(fp)) {
pr_err("%s %s - file not exist:%ld\n", ISG5320A_TAG, __func__,
PTR_ERR(fp));
set_fs(old_fs);
return -1;
}
file_size = fp->f_path.dentry->d_inode->i_size;
pr_info("%s %s - size of the file : %ld(bytes)\n", ISG5320A_TAG,
__func__, file_size);
file_data = vzalloc(file_size);
pos = 0;
ret = vfs_read(fp, (char __user *)file_data, file_size, &pos);
if (ret != file_size) {
pr_err("%s %s - failed to read file (ret = %d)\n", ISG5320A_TAG,
__func__, ret);
vfree(file_data);
filp_close(fp, current->files);
return -1;
}
filp_close(fp, current->files);
set_fs(old_fs);
for (i = 0; i < file_size; i++) {
if (file_data[i] == 'W') {
if ((i + 6) >= file_size)
break;
addr = (u8)((str2int(file_data[i + 2]) * 16) +
str2int(file_data[i + 3]));
val = (u8)((str2int(file_data[i + 5]) * 16) +
str2int(file_data[i + 6]));
isg5320a_i2c_write_one(data, addr, val);
pr_info("%s W %02X %02X\n", ISG5320A_TAG, addr, val);
isg5320a_i2c_read(data, addr, &val, 1);
pr_info("%s %02X %02X\n", ISG5320A_TAG, addr, val);
} else if (file_data[i] == 'R') {
if ((i + 3) >= file_size)
break;
addr = (u8)((str2int(file_data[i + 2]) * 16) +
str2int(file_data[i + 3]));
isg5320a_i2c_read(data, addr, &val, 1);
pr_info("%s R %02X %02X\n", ISG5320A_TAG, addr, val);
}
}
vfree(file_data);
return 0;
}
static void isg5320a_get_raw_data(struct isg5320a_data *data, bool log_print)
{
int ret = 0;
u8 buf[4];
u16 cpbuf;
u32 temp;
mutex_lock(&data->lock);
ret = isg5320a_i2c_read(data, ISG5320A_CDC16_T_H_REG, buf, sizeof(buf));
if (ret < 0) {
pr_info("%s fail to get data\n", ISG5320A_TAG);
} else {
temp = ((u32)buf[0] << 8) | (u32)buf[1];
if ((temp != 0) && (temp != 0xFFFF))
data->cdc = temp;
temp = ((u32)buf[2] << 8) | (u32)buf[3];
if ((temp != 0) && (temp != 0xFFFF))
data->base = temp;
data->diff = (s32)data->cdc - (s32)data->base;
}
ret = isg5320a_i2c_read(data, ISG5320A_COARSE_OUT_B_REG, (u8 *)&cpbuf, 2);
if (ret < 0)
pr_info("%s fail to get capMain\n", ISG5320A_TAG);
else
data->fine_coarse = cpbuf;
mutex_unlock(&data->lock);
if (log_print) {
pr_info("%s capMain: %d%02d, cdc: %d, baseline:%d, diff:%d, skip_data:%d\n",
ISG5320A_TAG, (data->fine_coarse & 0xFF),
((data->fine_coarse >> 8) & 0x3F), data->cdc, data->base,
data->diff, data->skip_data);
} else {
if (data->debug_cnt >= GRIP_LOG_TIME) {
pr_info("%s capMain: %d%02d, cdc: %d, baseline:%d, diff:%d, skip_data:%d\n",
ISG5320A_TAG, (data->fine_coarse & 0xFF),
((data->fine_coarse >> 8) & 0x3F), data->cdc, data->base,
data->diff, data->skip_data);
data->debug_cnt = 0;
} else {
data->debug_cnt++;
}
}
}
static void force_far_grip(struct isg5320a_data *data)
{
if (data->state == CLOSE) {
pr_info("%s %s\n", ISG5320A_TAG, __func__);
if (data->skip_data == true)
return;
input_report_rel(data->input_dev, REL_MISC, 2);
input_sync(data->input_dev);
data->state = FAR;
}
}
static void report_event_data(struct isg5320a_data *data, u8 intr_msg)
{
int state;
if (data->skip_data == true) {
pr_info("%s - skip grip event\n", ISG5320A_TAG);
return;
}
state = (intr_msg & (1 << ISG5320A_PROX_STATE)) ? CLOSE : FAR;
if (data->abnormal_mode) {
if (state == CLOSE) {
if (data->max_diff < data->diff)
data->max_diff = data->diff;
data->irq_count++;
}
}
if (state == CLOSE) {
if (data->state == FAR) {
pr_info("%s CLOSE\n", ISG5320A_TAG);
data->state = CLOSE;
data->bfcal_chk_start = true;
data->bfcal_chk_ready = false;
data->bfcal_chk_count = 0;
} else {
pr_info("%s still CLOSE\n", ISG5320A_TAG);
}
} else {
if (data->state == CLOSE) {
pr_info("%s FAR\n", ISG5320A_TAG);
data->state = FAR;
data->bfcal_chk_start = false;
data->bfcal_chk_ready = false;
data->bfcal_chk_count = 0;
} else {
pr_info("%s already FAR\n", ISG5320A_TAG);
}
}
if (data->state == CLOSE)
input_report_rel(data->input_dev, REL_MISC, 1);
else
input_report_rel(data->input_dev, REL_MISC, 2);
input_sync(data->input_dev);
}
static irqreturn_t isg5320a_irq_thread(int irq, void *ptr)
{
int ret;
int i;
u8 intr_msg = 0;
u8 *buf8;
struct isg5320a_data *data = (struct isg5320a_data *)ptr;
if (data->initialized == OFF)
return IRQ_HANDLED;
wake_lock(&data->grip_wake_lock);
isg5320a_get_raw_data(data, true);
isg5320a_i2c_read(data, ISG5320A_IRQSRC_REG, &intr_msg, 1);
if (data->intr_debug_size > 0) {
buf8 = kzalloc(data->intr_debug_size, GFP_KERNEL);
if (buf8) {
pr_info("%s Intr_debug1 (0x%02X)\n", ISG5320A_TAG,
data->intr_debug_addr);
isg5320a_i2c_read(data, data->intr_debug_addr, buf8,
data->intr_debug_size);
for (i = 0; i < data->intr_debug_size; i++)
pr_info("%s \t%02X\n", ISG5320A_TAG, buf8[i]);
kfree(buf8);
}
}
ret = isg5320a_i2c_read(data, ISG5320A_IRQSTS_REG, &intr_msg, 1);
if (ret < 0) {
pr_err("%s fail to read state(%d)\n", ISG5320A_TAG, ret);
goto irq_end;
}
pr_info("%s intr msg: 0x%02X\n", ISG5320A_TAG, intr_msg);
report_event_data(data, intr_msg);
irq_end:
wake_unlock(&data->grip_wake_lock);
return IRQ_HANDLED;
}
static void isg5320a_initialize(struct isg5320a_data *data)
{
int ret;
int i;
u8 val;
u8 buf[2];
pr_info("%s %s\n", ISG5320A_TAG, __func__);
force_far_grip(data);
isg5320a_i2c_read(data, ISG5320A_IRQSRC_REG, &val, 1);
isg5320a_i2c_write_one(data, ISG5320A_SCANCTRL1_REG, ISG5320A_SCAN_STOP);
msleep(30);
ret = isg5320a_setup_reg(data);
if (ret < 0) {
for (i = 0; i < (sizeof(setup_reg) >> 1); i++) {
isg5320a_i2c_write_one(data, setup_reg[i].addr, setup_reg[i].val);
pr_info("%s W %02X %02X\n", ISG5320A_TAG, setup_reg[i].addr,
setup_reg[i].val);
isg5320a_i2c_read(data, setup_reg[i].addr, &val, 1);
pr_info("%s %02X %02X\n", ISG5320A_TAG, setup_reg[i].addr, val);
}
}
if (data->normal_th > 0) {
buf[0] = (data->normal_th >> 8) & 0xFF;
buf[1] = data->normal_th & 0xFF;
isg5320a_i2c_write(data, ISG5320A_B_PROXCTL3_REG, buf, 2);
}
ret = isg5320a_i2c_read(data, ISG5320A_DIGITAL_ACC_REG, &val, 1);
if (ret < 0)
pr_err("%s fail to read DIGITAL ACC(%d)\n", ISG5320A_TAG, ret);
else
data->cfcal_th = ISG5320A_RESET_CONDITION * val / 8;
data->initialized = ON;
}
static void isg5320a_set_debug_work(struct isg5320a_data *data, bool enable,
unsigned int delay_ms)
{
if (enable == ON) {
data->debug_cnt = 0;
schedule_delayed_work(&data->debug_work, msecs_to_jiffies(delay_ms));
schedule_delayed_work(&data->cal_work, msecs_to_jiffies(delay_ms));
} else {
cancel_delayed_work_sync(&data->debug_work);
cancel_delayed_work_sync(&data->cal_work);
}
}
static void isg5320a_set_enable(struct isg5320a_data *data, int enable)
{
u8 state;
int ret = 0;
pr_info("%s %s\n", ISG5320A_TAG, __func__);
if (data->enable == enable) {
pr_info("%s - already enabled\n", ISG5320A_TAG);
return;
}
if (enable == ON) {
pr_info("%s %s - enable\n", ISG5320A_TAG, __func__);
data->diff_avg = 0;
data->diff_cnt = 0;
data->cdc_avg = 0;
ret = isg5320a_i2c_read(data, ISG5320A_IRQSTS_REG, &state, 1);
if (ret < 0)
return;
isg5320a_get_raw_data(data, true);
if (data->skip_data == true) {
input_report_rel(data->input_dev, REL_MISC, 2);
} else if (state & (1 << ISG5320A_PROX_STATE)) {
data->state = CLOSE;
input_report_rel(data->input_dev, REL_MISC, 1);
} else {
data->state = FAR;
input_report_rel(data->input_dev, REL_MISC, 2);
}
input_sync(data->input_dev);
isg5320a_i2c_read(data, ISG5320A_IRQSRC_REG, &state, 1);
isg5320a_i2c_write_one(data, ISG5320A_IRQFUNC_REG, ISG5320A_IRQ_ENABLE);
enable_irq(data->client->irq);
enable_irq_wake(data->client->irq);
} else {
pr_info("%s %s - disable\n", ISG5320A_TAG, __func__);
isg5320a_i2c_write_one(data, ISG5320A_IRQFUNC_REG, ISG5320A_IRQ_DISABLE);
disable_irq(data->client->irq);
disable_irq_wake(data->client->irq);
}
data->enable = enable;
}
static int isg5320a_set_mode(struct isg5320a_data *data, unsigned char mode)
{
int ret = -EINVAL;
u8 state;
isg5320a_i2c_read(data, ISG5320A_IRQSRC_REG, &state, 1);
if (mode == ISG5320A_MODE_SLEEP) {
isg5320a_i2c_write_one(data, ISG5320A_SCANCTRL1_REG,
ISG5320A_SCAN_STOP);
isg5320a_i2c_write_one(data, ISG5320A_OSCCON_REG, ISG5320A_OSC_SLEEP);
isg5320a_i2c_write_one(data, ISG5320A_BS_ON_WD_REG, ISG5320A_BS_WD_OFF);
} else if (mode == ISG5320A_MODE_NORMAL) {
isg5320a_i2c_write_one(data, ISG5320A_BS_ON_WD_REG, ISG5320A_BS_WD_ON);
isg5320a_force_calibration(data, false);
}
pr_info("%s %s - change the mode : %u\n", ISG5320A_TAG, __func__, mode);
return ret;
}
static ssize_t isg5320a_name_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
pr_info("%s %s%s\n", ISG5320A_TAG, __func__, DEVICE_NAME);
return sprintf(buf, "%s\n", DEVICE_NAME);
}
static ssize_t isg5320a_vendor_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
pr_info("%s %s%s\n", ISG5320A_TAG, __func__, VENDOR_NAME);
return sprintf(buf, "%s\n", VENDOR_NAME);
}
static ssize_t isg5320a_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "1\n");
}
static ssize_t isg5320a_acal_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "2,0,0\n");
}
static ssize_t isg5320a_manual_acal_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "OK\n");
}
static ssize_t isg5320a_onoff_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
u8 val;
int ret;
struct isg5320a_data *data = dev_get_drvdata(dev);
ret = kstrtou8(buf, 2, &val);
if (ret) {
pr_err("%s invalid argument\n", ISG5320A_TAG);
return ret;
}
if (val == 0) {
data->skip_data = true;
if (data->enable == ON) {
data->state = FAR;
input_report_rel(data->input_dev, REL_MISC, 2);
input_sync(data->input_dev);
}
} else {
data->skip_data = false;
}
pr_info("%s %d\n", ISG5320A_TAG, (int)val);
return count;
}
static ssize_t isg5320a_onoff_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", !data->skip_data);
}
static ssize_t isg5320a_sw_reset_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
pr_info("%s %s\n", ISG5320A_TAG, __func__);
isg5320a_force_calibration(data, true);
msleep(300);
isg5320a_get_raw_data(data, true);
return sprintf(buf, "%d\n", 0);
}
static ssize_t isg5320a_normal_threshold_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
int val = 0;
u8 buf8[2];
struct isg5320a_data *data = dev_get_drvdata(dev);
sscanf(buf, "%d", &val);
if (val < 0) {
pr_err("%s invalid argument\n", ISG5320A_TAG);
return size;
}
pr_info("%s change threshold(%d->%d)\n", ISG5320A_TAG, data->normal_th,
val);
data->normal_th = val;
buf8[0] = (data->normal_th >> 8) & 0xFF;
buf8[1] = data->normal_th & 0xFF;
isg5320a_i2c_write(data, ISG5320A_B_PROXCTL3_REG, buf8, 2);
return size;
}
static ssize_t isg5320a_normal_threshold_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
u32 threshold = 0;
u32 close_hyst = 0;
u32 far_hyst = 0;
u8 buf8[6];
struct isg5320a_data *data = dev_get_drvdata(dev);
isg5320a_i2c_read(data, ISG5320A_B_PROXCTL3_REG, buf8, sizeof(buf8));
threshold = ((u32)buf8[0] << 8) | (u32)buf8[1];
close_hyst = ((u32)buf8[2] << 8) | (u32)buf8[3];
far_hyst = ((u32)buf8[4] << 8) | (u32)buf8[5];
return sprintf(buf, "%d,%d\n", threshold + close_hyst,
threshold - far_hyst);
}
static ssize_t isg5320a_raw_data_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
isg5320a_get_raw_data(data, true);
if (data->diff_cnt == 0) {
data->diff_sum = data->diff;
data->cdc_sum = data->cdc;
} else {
data->diff_sum += data->diff;
data->cdc_sum += data->cdc;
}
if (++data->diff_cnt >= ISG5320A_DIFF_AVR_CNT) {
data->diff_avg = data->diff_sum / ISG5320A_DIFF_AVR_CNT;
data->cdc_avg = data->cdc_sum / ISG5320A_DIFF_AVR_CNT;
data->diff_cnt = 0;
}
return sprintf(buf, "%d%02d,%d,%d,%d,%d\n", (data->fine_coarse & 0xFF),
((data->fine_coarse >> 8) & 0x3F), data->cdc,
data->fine_coarse, data->diff, data->base);
}
static ssize_t isg5320a_debug_raw_data_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret = 0;
u8 buff[10];
u16 temp;
struct isg5320a_data *data = dev_get_drvdata(dev);
mutex_lock(&data->lock);
ret = isg5320a_i2c_read(data, ISG5320A_CDC16_A_H_REG, buff, sizeof(buff));
mutex_unlock(&data->lock);
if (ret < 0) {
pr_info("%s fail to get data\n", ISG5320A_TAG);
} else {
temp = ((u32)buff[0] << 8) | (u32)buff[1];
if ((temp != 0) && (temp != 0xFFFF))
data->debug_cdc[0] = temp;
temp = ((u32)buff[2] << 8) | (u32)buff[3];
if ((temp != 0) && (temp != 0xFFFF))
data->debug_base[0] = temp;
data->debug_diff[0] =
(s32)data->debug_cdc[0] - (s32)data->debug_base[0];
temp = ((u32)buff[6] << 8) | (u32)buff[7];
if ((temp != 0) && (temp != 0xFFFF))
data->debug_cdc[1] = temp;
temp = ((u32)buff[8] << 8) | (u32)buff[9];
if ((temp != 0) && (temp != 0xFFFF))
data->debug_base[1] = temp;
data->debug_diff[1] =
(s32)data->debug_cdc[1] - (s32)data->debug_base[1];
temp = ((u32)buff[4] << 8) | (u32)buff[5];
if ((temp != 0) && (temp != 0xFFFF))
data->debug_cdc[2] = temp;
data->debug_diff[2] =
(s32)data->debug_cdc[2] - (s32)data->debug_base[1];
}
return sprintf(buf, "%d,%d,%d,%d,%d,%d,%d,%d,%d\n", data->debug_cdc[0],
data->debug_diff[0], data->debug_base[0], data->debug_cdc[1],
data->debug_diff[1], data->debug_base[1], data->debug_cdc[2],
data->debug_diff[2], data->debug_base[1]);
}
static ssize_t isg5320a_debug_data_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%d,%d,%d\n", data->cdc, data->base, data->diff);
}
static ssize_t isg5320a_diff_avg_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", data->diff_avg);
}
static ssize_t isg5320a_cdc_avg_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%d\n", data->cdc_avg);
}
static ssize_t isg5320a_ch_state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int count;
struct isg5320a_data *data = dev_get_drvdata(dev);
if (data->skip_data == true)
count = snprintf(buf, PAGE_SIZE, "%d,%d\n", NONE_ENABLE, NONE_ENABLE);
else if (data->enable == ON)
count = snprintf(buf, PAGE_SIZE, "%d,%d\n", data->state, NONE_ENABLE);
else
count = snprintf(buf, PAGE_SIZE, "%d,%d\n", NONE_ENABLE, NONE_ENABLE);
return count;
}
static ssize_t isg5320a_hysteresis_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
u32 far_hyst = 0;
u8 buf8[6];
struct isg5320a_data *data = dev_get_drvdata(dev);
isg5320a_i2c_read(data, ISG5320A_B_PROXCTL3_REG, buf8, sizeof(buf8));
far_hyst = ((u32)buf8[4] << 8) | (u32)buf8[5];
return sprintf(buf, "%d\n", far_hyst);
}
static ssize_t isg5320a_reg_update_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int enable_backup;
struct isg5320a_data *data = dev_get_drvdata(dev);
enable_backup = data->enable;
isg5320a_reset(data);
if (enable_backup)
isg5320a_set_enable(data, OFF);
isg5320a_set_mode(data, ISG5320A_MODE_SLEEP);
isg5320a_initialize(data);
if (enable_backup)
isg5320a_set_enable(data, ON);
isg5320a_set_mode(data, ISG5320A_MODE_NORMAL);
return sprintf(buf, "OK\n");
}
#define DIRECT_CMD_WRITE 'w'
#define DIRECT_CMD_READ 'r'
#define DIRECT_BUF_COUNT 16
static ssize_t isg5320a_direct_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
int ret = -EPERM;
u32 tmp1, tmp2;
struct isg5320a_data *data = dev_get_drvdata(dev);
direct_info *direct = (direct_info *)&data->direct;
sscanf(buf, "%c %x %x", &direct->cmd, &tmp1, &tmp2);
direct->addr = tmp1;
direct->val = tmp2;
pr_info("%s direct cmd: %c, addr: %x, val: %x\n", ISG5320A_TAG, direct->cmd,
direct->addr, direct->val);
if ((direct->cmd != DIRECT_CMD_WRITE) && (direct->cmd != DIRECT_CMD_READ)) {
pr_err("%s direct cmd is not correct!\n", ISG5320A_TAG);
return size;
}
if (direct->cmd == DIRECT_CMD_WRITE) {
ret = isg5320a_i2c_write_one(data, direct->addr, direct->val);
if (ret < 0)
pr_err("%s direct write fail\n", ISG5320A_TAG);
else
pr_info("%s direct write addr: %x, val: %x\n", ISG5320A_TAG,
direct->addr, direct->val);
}
return size;
}
static ssize_t isg5320a_direct_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int i, count = 0;
int ret = 0;
int len;
u8 addr;
const int msg_len = 256;
char msg[msg_len];
struct isg5320a_data *data = dev_get_drvdata(dev);
direct_info *direct = (direct_info *)&data->direct;
u8 buf8[DIRECT_BUF_COUNT] = {0,};
int max_len = DIRECT_BUF_COUNT;
if (direct->cmd != DIRECT_CMD_READ)
return sprintf(buf, "ex) echo r addr len size(display) > direct\n");
len = direct->val;
addr = direct->addr;
while (len > 0) {
if (len < max_len)
max_len = len;
ret = isg5320a_i2c_read(data, addr, buf8, max_len);
if (ret < 0) {
count = sprintf(buf, "i2c read fail\n");
break;
}
addr += max_len;
for (i = 0; i < max_len; i++) {
count += snprintf(msg, msg_len, "0x%02X ", buf8[i]);
strncat(buf, msg, msg_len);
}
count += snprintf(msg, msg_len, "\n");
strncat(buf, msg, msg_len);
len -= max_len;
}
return count;
}
static ssize_t isg5320a_intr_debug_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
u32 tmp1;
struct isg5320a_data *data = dev_get_drvdata(dev);
sscanf(buf, "%x %d", &tmp1, &data->intr_debug_size);
data->intr_debug_addr = tmp1;
pr_info("%s intr debug addr: 0x%x, count: %d\n", ISG5320A_TAG,
data->intr_debug_addr, data->intr_debug_size);
return size;
}
static ssize_t isg5320a_intr_debug_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
pr_info("%s intr debug addr: 0x%x, count: %d\n", ISG5320A_TAG,
data->intr_debug_addr, data->intr_debug_size);
return sprintf(buf, "intr debug addr: 0x%x, count: %d\n",
data->intr_debug_addr, data->intr_debug_size);
}
static ssize_t isg5320a_cp_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
u16 buff;
struct isg5320a_data *data = dev_get_drvdata(dev);
ret = isg5320a_i2c_read(data, ISG5320A_COARSE_B_REG, (u8 *)&buff, 2);
if (ret < 0) {
pr_info("%s fail to get cp\n", ISG5320A_TAG);
} else {
data->fine_coarse = buff;
pr_info("%s coarse B:%04X\n", ISG5320A_TAG, data->fine_coarse);
}
return sprintf(buf, "%d%02d,0\n", (data->fine_coarse & 0xFF),
(data->fine_coarse >> 8) & 0x3F);
}
#define SCAN_INT 0x12
#define FAR_CLOSE_INT 0x0C
static ssize_t isg5320a_scan_int_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
u8 irq_con = SCAN_INT;
struct isg5320a_data *data = dev_get_drvdata(dev);
ret = isg5320a_i2c_write(data, ISG5320A_IRQCON_REG, &irq_con, 1);
if (ret < 0) {
pr_err("%s fail to set scan done int\n", ISG5320A_TAG);
return sprintf(buf, "FAIL\n");
} else {
pr_info("%s set scan done int\n", ISG5320A_TAG);
return sprintf(buf, "OK\n");
}
}
static ssize_t isg5320a_far_close_int_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
u8 irq_con = FAR_CLOSE_INT;
struct isg5320a_data *data = dev_get_drvdata(dev);
ret = isg5320a_i2c_write(data, ISG5320A_IRQCON_REG, &irq_con, 1);
if (ret < 0) {
pr_err("%s fail to set normal int\n", ISG5320A_TAG);
return sprintf(buf, "FAIL\n");
} else {
pr_info("%s set normal int\n", ISG5320A_TAG);
return sprintf(buf, "OK\n");
}
}
static ssize_t isg5320a_toggle_enable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int enable;
struct isg5320a_data *data = dev_get_drvdata(dev);
enable = (data->enable == OFF) ? ON : OFF;
isg5320a_set_enable(data, (int)enable);
return sprintf(buf, "%d\n", data->enable);
}
static ssize_t isg5320a_enable_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
int ret;
u8 enable;
struct isg5320a_data *data = dev_get_drvdata(dev);
int pre_enable = data->enable;
ret = kstrtou8(buf, 2, &enable);
if (ret) {
pr_err("%s invalid argument\n", ISG5320A_TAG);
return size;
}
pr_info("%s new_value=%d old_value=%d\n", ISG5320A_TAG, (int)enable,
pre_enable);
if (pre_enable == enable)
return size;
isg5320a_set_enable(data, (int)enable);
return size;
}
static ssize_t isg5320a_enable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", data->enable);
}
static ssize_t isg5320a_sampling_freq_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
u8 buff;
int sampling_freq;
isg5320a_i2c_read(data, ISG5320A_NUM_OF_CLK, &buff, 1);
sampling_freq = (int)(4000 / ((int)buff + 1));
return snprintf(buf, PAGE_SIZE, "%dkHz\n", sampling_freq);
}
static ssize_t isg5320a_isum_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
const char *table[16] = {
"0", "0", "0", "0", "0", "0", "0", "0", "0",
"20", "24", "28", "32", "40", "48", "64"};
u8 buff = 0;
isg5320a_i2c_read(data, ISG5320A_CHB_LSUM_TYPE_REG, &buff, 1);
buff = (buff & 0xf0) >> 4;
return snprintf(buf, PAGE_SIZE, "%s\n", table[buff]);
}
static ssize_t isg5320a_scan_period_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
u8 buff[2];
int scan_period;
isg5320a_i2c_read(data, ISG5320A_WUTDATA_REG, (u8 *)&buff, sizeof(buff));
scan_period = (int)(((u16)buff[1] & 0xff) | (((u16)buff[0] & 0x3f) << 8));
if (!scan_period)
return snprintf(buf, PAGE_SIZE, "%d\n", scan_period);
scan_period = (int)(4000 / scan_period);
return snprintf(buf, PAGE_SIZE, "%d\n", scan_period);
}
static ssize_t isg5320a_again_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
u8 buff;
u8 temp1, temp2;
isg5320a_i2c_read(data, ISG5320A_ANALOG_GAIN, &buff, 1);
temp1 = (buff & 0x38) >> 3;
temp2 = (buff & 0x07);
return snprintf(buf, PAGE_SIZE, "%d/%d\n", (int)temp2 + 1, (int)temp1 + 1);
}
static ssize_t isg5320a_cdc_up_coef_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
u8 buff;
int coef;
isg5320a_i2c_read(data, ISG5320A_CHB_CDC_UP_COEF_REG, &buff, 1);
coef = (int)buff;
return snprintf(buf, PAGE_SIZE, "%x, %d\n", buff, coef);
}
static ssize_t isg5320a_cdc_down_coef_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
u8 buff;
int coef;
isg5320a_i2c_read(data, ISG5320A_CHB_CDC_DN_COEF_REG, &buff, 1);
coef = (int)buff;
return snprintf(buf, PAGE_SIZE, "%x, %d\n", buff, coef);
}
static ssize_t isg5320a_temp_enable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
u8 buff;
isg5320a_i2c_read(data, ISG5320A_TEMPERATURE_ENABLE_REG, &buff, 1);
return snprintf(buf, PAGE_SIZE, "%d\n", ((buff & 0x40) >> 6));
}
static ssize_t isg5320a_cml_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
u8 buff;
isg5320a_i2c_read(data, ISG5320A_CML_BIAS_REG, &buff, 1);
return snprintf(buf, PAGE_SIZE, "%d\n", (buff & 0x07));
}
static ssize_t isg5320a_irq_count_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
int ret = 0;
s16 max_diff_val = 0;
if (data->irq_count) {
ret = -1;
max_diff_val = data->max_diff;
} else {
max_diff_val = data->max_normal_diff;
}
pr_info("%s %s - called\n", ISG5320A_TAG, __func__);
return snprintf(buf, PAGE_SIZE, "%d,%d,%d\n", ret, data->irq_count,
max_diff_val);
}
static ssize_t isg5320a_irq_count_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
u8 onoff;
int ret;
ret = kstrtou8(buf, 10, &onoff);
if (ret < 0) {
pr_err("%s invalid argument\n", ISG5320A_TAG);
return count;
}
mutex_lock(&data->lock);
if (onoff == 0) {
data->abnormal_mode = OFF;
} else if (onoff == 1) {
data->abnormal_mode = ON;
data->irq_count = 0;
data->max_diff = 0;
data->max_normal_diff = 0;
} else {
pr_err("%s invalid value %d\n", ISG5320A_TAG, onoff);
}
mutex_unlock(&data->lock);
pr_info("%s %s - %d\n", ISG5320A_TAG, __func__, onoff);
return count;
}
static DEVICE_ATTR(name, 0444, isg5320a_name_show, NULL);
static DEVICE_ATTR(vendor, 0444, isg5320a_vendor_show, NULL);
static DEVICE_ATTR(mode, 0444, isg5320a_mode_show, NULL);
static DEVICE_ATTR(manual_acal, 0444, isg5320a_manual_acal_show, NULL);
static DEVICE_ATTR(calibration, 0444, isg5320a_acal_show, NULL);
static DEVICE_ATTR(onoff, 0664, isg5320a_onoff_show, isg5320a_onoff_store);
static DEVICE_ATTR(reset, 0444, isg5320a_sw_reset_show, NULL);
static DEVICE_ATTR(normal_threshold, 0664, isg5320a_normal_threshold_show,
isg5320a_normal_threshold_store);
static DEVICE_ATTR(raw_data, 0444, isg5320a_raw_data_show, NULL);
static DEVICE_ATTR(debug_raw_data, 0444, isg5320a_debug_raw_data_show, NULL);
static DEVICE_ATTR(debug_data, 0444, isg5320a_debug_data_show, NULL);
static DEVICE_ATTR(diff_avg, 0444, isg5320a_diff_avg_show, NULL);
static DEVICE_ATTR(cdc_avg, 0444, isg5320a_cdc_avg_show, NULL);
static DEVICE_ATTR(useful_avg, 0444, isg5320a_cdc_avg_show, NULL);
static DEVICE_ATTR(ch_state, 0444, isg5320a_ch_state_show, NULL);
static DEVICE_ATTR(hysteresis, 0444, isg5320a_hysteresis_show, NULL);
static DEVICE_ATTR(reg_update, 0444, isg5320a_reg_update_show, NULL);
static DEVICE_ATTR(direct, 0664, isg5320a_direct_show, isg5320a_direct_store);
static DEVICE_ATTR(intr_debug, 0664, isg5320a_intr_debug_show, isg5320a_intr_debug_store);
static DEVICE_ATTR(cp, 0444, isg5320a_cp_show, NULL);
static DEVICE_ATTR(scan_int, 0444, isg5320a_scan_int_show, NULL);
static DEVICE_ATTR(far_close_int, 0444, isg5320a_far_close_int_show, NULL);
static DEVICE_ATTR(toggle_enable, 0444, isg5320a_toggle_enable_show, NULL);
static DEVICE_ATTR(sampling_freq, 0444, isg5320a_sampling_freq_show, NULL);
static DEVICE_ATTR(isum, 0444, isg5320a_isum_show, NULL);
static DEVICE_ATTR(scan_period, 0444, isg5320a_scan_period_show, NULL);
static DEVICE_ATTR(analog_gain, 0444, isg5320a_again_show, NULL);
static DEVICE_ATTR(cdc_up, 0444, isg5320a_cdc_down_coef_show, NULL);
static DEVICE_ATTR(cdc_down, 0444, isg5320a_cdc_up_coef_show, NULL);
static DEVICE_ATTR(temp_enable, 0444, isg5320a_temp_enable_show, NULL);
static DEVICE_ATTR(cml, 0444, isg5320a_cml_show, NULL);
static DEVICE_ATTR(irq_count, 0664, isg5320a_irq_count_show,
isg5320a_irq_count_store);
static struct device_attribute *sensor_attrs[] = {
&dev_attr_name,
&dev_attr_vendor,
&dev_attr_mode,
&dev_attr_manual_acal,
&dev_attr_calibration,
&dev_attr_onoff,
&dev_attr_reset,
&dev_attr_normal_threshold,
&dev_attr_raw_data,
&dev_attr_debug_raw_data,
&dev_attr_debug_data,
&dev_attr_diff_avg,
&dev_attr_useful_avg,
&dev_attr_cdc_avg,
&dev_attr_ch_state,
&dev_attr_hysteresis,
&dev_attr_reg_update,
&dev_attr_direct,
&dev_attr_intr_debug,
&dev_attr_cp,
&dev_attr_scan_int,
&dev_attr_far_close_int,
&dev_attr_toggle_enable,
&dev_attr_sampling_freq,
&dev_attr_isum,
&dev_attr_scan_period,
&dev_attr_analog_gain,
&dev_attr_cdc_up,
&dev_attr_cdc_down,
&dev_attr_temp_enable,
&dev_attr_cml,
&dev_attr_irq_count,
NULL,
};
static DEVICE_ATTR(enable, 0664, isg5320a_enable_show, isg5320a_enable_store);
static struct attribute *isg5320a_attributes[] = {
&dev_attr_enable.attr,
NULL,
};
static struct attribute_group isg5320a_attribute_group = {
.attrs = isg5320a_attributes,
};
#ifdef ISG5320A_INIT_DELAYEDWORK
static void init_work_func(struct work_struct *work)
{
struct delayed_work *delayed_work = to_delayed_work(work);
struct isg5320a_data *data = container_of(delayed_work,
struct isg5320a_data, init_work);
isg5320a_initialize(data);
isg5320a_set_mode(data, ISG5320A_MODE_NORMAL);
isg5320a_set_debug_work(data, ON, 2000);
}
#endif
static void cal_work_func(struct work_struct *work)
{
struct delayed_work *delayed_work = to_delayed_work(work);
struct isg5320a_data *data = container_of(delayed_work,
struct isg5320a_data, cal_work);
bool force_cal = false;
isg5320a_get_raw_data(data, false);
// check cfcal
if (data->cdc < data->cfcal_th) {
pr_info("%s cdc : %d, cfcal_th %d\n", ISG5320A_TAG, data->cdc,
data->cfcal_th);
isg5320a_force_calibration(data, false);
force_cal = true;
}
// check bfcal
if (data->bfcal_chk_start) {
data->bfcal_chk_count++;
if (data->bfcal_chk_count == ISG5320A_BFCAL_CHK_RDY_TIME) {
data->bfcal_chk_ready = true;
data->bfcal_chk_cdc = data->cdc;
data->bfcal_chk_diff =
data->diff / ISG5320A_BFCAL_CHK_DIFF_RATIO;
} else if (data->bfcal_chk_count > ISG5320A_BFCAL_CHK_RDY_TIME) {
if (((data->bfcal_chk_count - ISG5320A_BFCAL_CHK_RDY_TIME) %
ISG5320A_BFCAL_CHK_CYCLE_TIME) == 0) {
if (((s32)data->bfcal_chk_cdc - (s32)data->cdc) >=
data->bfcal_chk_diff) {
isg5320a_force_calibration(data, true);
force_cal = true;
data->bfcal_chk_start = false;
data->bfcal_chk_ready = false;
data->bfcal_chk_count = 0;
} else {
data->bfcal_chk_cdc = data->cdc;
data->bfcal_chk_diff =
data->diff / ISG5320A_BFCAL_CHK_DIFF_RATIO;
}
}
}
}
if (force_cal)
schedule_delayed_work(&data->cal_work, msecs_to_jiffies(1000));
else
schedule_delayed_work(&data->cal_work, msecs_to_jiffies(500));
}
static void force_cal_work_func(struct work_struct *work)
{
struct isg5320a_data *data = container_of(work,
struct isg5320a_data, force_cal_work);
isg5320a_force_calibration(data, true);
}
static void debug_work_func(struct work_struct *work)
{
int ret;
struct delayed_work *delayed_work = to_delayed_work(work);
struct isg5320a_data *data = container_of(delayed_work,
struct isg5320a_data, debug_work);
if (data->hallic_detect) {
ret = check_hallic_state(HALLIC_PATH, data->hall_ic);
if (ret < 0)
pr_err("%s hallic detect fail = %d\n", ISG5320A_TAG, ret);
if (strcmp(data->hall_ic, "CLOSE") == 0) {
if (data->hall_flag) {
pr_info("%s hall IC is closed\n", ISG5320A_TAG);
isg5320a_force_calibration(data, true);
data->hall_flag = 0;
}
} else {
data->hall_flag = 1;
}
}
if (data->hallic_cert_detect) {
ret = check_hallic_state(HALLIC_CERT_PATH, data->hall_ic);
if (ret < 0)
pr_err("%s Cert hall IC detect fail = %d\n", ISG5320A_TAG, ret);
if (strcmp(data->hall_ic, "CLOSE") == 0) {
if (data->hall_cert_flag) {
pr_info("%s Cert hall IC is closed\n", ISG5320A_TAG);
isg5320a_force_calibration(data, true);
data->hall_cert_flag = 0;
}
} else {
data->hall_cert_flag = 1;
}
}
if (data->enable == ON) {
if (data->abnormal_mode) {
isg5320a_get_raw_data(data, true);
if (data->max_normal_diff < data->diff)
data->max_normal_diff = data->diff;
}
}
schedule_delayed_work(&data->debug_work, msecs_to_jiffies(2000));
}
#if (defined(CONFIG_CCIC_NOTIFIER) || defined(CONFIG_PDIC_NOTIFIER)) && defined(CONFIG_USB_TYPEC_MANAGER_NOTIFIER)
static int isg5320a_ccic_handle_notification(struct notifier_block *nb,
unsigned long action, void *data)
{
#if defined(CONFIG_PDIC_NOTIFIER)
PD_NOTI_USB_STATUS_TYPEDEF usb_status = *(PD_NOTI_USB_STATUS_TYPEDEF *)data;
#else
CC_NOTI_USB_STATUS_TYPEDEF usb_status = *(CC_NOTI_USB_STATUS_TYPEDEF *)data;
#endif
struct isg5320a_data *pdata = container_of(nb, struct isg5320a_data,
cpuidle_ccic_nb);
static int pre_attach;
if (pre_attach == usb_status.attach)
return 0;
/*
* USB_STATUS_NOTIFY_DETACH = 0,
* USB_STATUS_NOTIFY_ATTACH_DFP = 1, // Host
* USB_STATUS_NOTIFY_ATTACH_UFP = 2, // Device
* USB_STATUS_NOTIFY_ATTACH_DRP = 3, // Dual role
*/
if (pdata->initialized == ON) {
switch (usb_status.drp) {
case USB_STATUS_NOTIFY_ATTACH_UFP:
case USB_STATUS_NOTIFY_ATTACH_DFP:
case USB_STATUS_NOTIFY_DETACH:
pr_info("%s - drp = %d attat = %d\n", ISG5320A_TAG, usb_status.drp,
usb_status.attach);
schedule_work(&pdata->force_cal_work);
break;
default:
pr_info("%s - DRP type : %d\n", ISG5320A_TAG, usb_status.drp);
break;
}
}
pre_attach = usb_status.attach;
return 0;
}
#elif defined(CONFIG_MUIC_NOTIFIER)
static int isg5320a_cpuidle_muic_notifier(struct notifier_block *nb,
unsigned long action, void *muic_data)
{
muic_attached_dev_t attached_dev = *(muic_attached_dev_t *)muic_data;
struct isg5320a_data *data = container_of(nb, struct isg5320a_data,
cpuidle_muic_nb);
switch (attached_dev) {
case ATTACHED_DEV_OTG_MUIC:
case ATTACHED_DEV_USB_MUIC:
case ATTACHED_DEV_TA_MUIC:
case ATTACHED_DEV_AFC_CHARGER_PREPARE_MUIC:
case ATTACHED_DEV_AFC_CHARGER_9V_MUIC:
if (action == MUIC_NOTIFY_CMD_ATTACH)
pr_info("%s TA/USB is inserted\n", ISG5320A_TAG);
else if (action == MUIC_NOTIFY_CMD_DETACH)
pr_info("%s TA/USB is removed\n", ISG5320A_TAG);
if (data->initialized == ON)
schedule_work(&pdata->force_cal_work);
else
pr_info("%s not initialized\n", ISG5320A_TAG);
break;
default:
break;
}
pr_info("%s dev=%d, action=%lu\n", ISG5320A_TAG, attached_dev, action);
return NOTIFY_DONE;
}
#endif
static int isg5320a_parse_dt(struct isg5320a_data *data, struct device *dev)
{
struct device_node *node = dev->of_node;
enum of_gpio_flags flags;
int ret;
data->gpio_int = of_get_named_gpio_flags(node, "isg5320a,irq-gpio", 0,
&flags);
if (data->gpio_int < 0) {
pr_err("%s get gpio_int error\n", ISG5320A_TAG);
return -ENODEV;
}
pr_info("%s gpio_int:%d\n", ISG5320A_TAG, data->gpio_int);
ret = of_property_read_u32(node, "isg5320a,hallic_detect",
&data->hallic_detect);
if (ret < 0)
data->hallic_detect = 0;
ret = of_property_read_u32(node, "isg5320a,hallic_cert_detect",
&data->hallic_cert_detect);
if (ret < 0)
data->hallic_cert_detect = 0;
return 0;
}
static int isg5320a_gpio_init(struct isg5320a_data *data)
{
int ret = 0;
ret = gpio_request(data->gpio_int, "isg5320a_irq");
if (ret < 0) {
pr_err("%s gpio %d request failed\n", ISG5320A_TAG, data->gpio_int);
return ret;
}
ret = gpio_direction_input(data->gpio_int);
if (ret < 0) {
pr_err("%s failed to set gpio %d(%d)\n", ISG5320A_TAG, data->gpio_int,
ret);
gpio_free(data->gpio_int);
return ret;
}
return ret;
}
static int isg5320a_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret = -ENODEV;
struct isg5320a_data *data;
struct input_dev *input_dev;
pr_info("%s ### %s probe ###\n", ISG5320A_TAG, DEVICE_NAME);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
pr_err("%s i2c_check_functionality error\n", ISG5320A_TAG);
goto err;
}
data = kzalloc(sizeof(struct isg5320a_data), GFP_KERNEL);
if (!data) {
pr_err("%s failed to allocate memory\n", ISG5320A_TAG);
goto err_kzalloc;
}
ret = isg5320a_parse_dt(data, &client->dev);
if (ret) {
pr_err("%s failed to parse dt\n", ISG5320A_TAG);
goto err_parse_dt;
}
ret = isg5320a_gpio_init(data);
if (ret) {
pr_err("%s failed to init sys\n", ISG5320A_TAG);
goto err_gpio_init;
}
data->client = client;
i2c_set_clientdata(client, data);
input_dev = input_allocate_device();
if (!input_dev) {
pr_err("%s input_allocate_device failed\n", ISG5320A_TAG);
goto err_input_alloc;
}
data->dev = &client->dev;
data->input_dev = input_dev;
input_dev->name = MODULE_NAME;
input_dev->id.bustype = BUS_I2C;
input_set_capability(input_dev, EV_REL, REL_MISC);
input_set_capability(input_dev, EV_REL, REL_MAX);
input_set_drvdata(input_dev, data);
ret = isg5320a_reset(data);
if (ret < 0) {
pr_err("%s IMAGIS reset failed\n", ISG5320A_TAG);
goto err_soft_reset;
}
data->skip_data = false;
data->state = FAR;
data->enable = OFF;
data->initialized = OFF;
data->debug_cnt = 0;
data->normal_th = 0;
data->fine_coarse = 0;
data->cfcal_th = ISG5320A_RESET_CONDITION;
data->bfcal_chk_ready = false;
data->bfcal_chk_start = false;
data->bfcal_chk_count = 0;
data->hall_flag = 1;
data->hall_cert_flag = 1;
data->debug_cdc[0] = 0;
data->debug_cdc[1] = 0;
data->debug_cdc[2] = 0;
data->debug_base[0] = 0;
data->debug_base[1] = 0;
data->debug_diff[0] = 0;
data->debug_diff[1] = 0;
client->irq = gpio_to_irq(data->gpio_int);
ret = request_threaded_irq(client->irq, NULL, isg5320a_irq_thread,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT, DEVICE_NAME, data);
if (ret < 0) {
pr_err("%s failed to register interrupt\n", ISG5320A_TAG);
goto err_irq;
}
disable_irq(client->irq);
mutex_init(&data->lock);
ret = input_register_device(input_dev);
if (ret) {
input_free_device(input_dev);
pr_err("%s failed to register input dev (%d)\n", ISG5320A_TAG, ret);
goto err_register_input_dev;
}
ret = sensors_create_symlink(input_dev);
if (ret < 0) {
pr_err("%s failed to create symlink (%d)\n", ISG5320A_TAG, ret);
goto err_create_symlink;
}
ret = sysfs_create_group(&input_dev->dev.kobj, &isg5320a_attribute_group);
if (ret < 0) {
pr_err("%s failed to create sysfs group (%d)\n", ISG5320A_TAG, ret);
goto err_sysfs_create_group;
}
ret = sensors_register(data->dev, data, sensor_attrs, MODULE_NAME);
if (ret) {
pr_err("%s could not register sensor(%d).\n", ISG5320A_TAG, ret);
goto err_sensor_register;
}
wake_lock_init(&data->grip_wake_lock, WAKE_LOCK_SUSPEND, "grip_wake_lock");
INIT_DELAYED_WORK(&data->debug_work, debug_work_func);
INIT_DELAYED_WORK(&data->cal_work, cal_work_func);
INIT_WORK(&data->force_cal_work, force_cal_work_func);
#ifdef ISG5320A_INIT_DELAYEDWORK
INIT_DELAYED_WORK(&data->init_work, init_work_func);
schedule_delayed_work(&data->init_work, msecs_to_jiffies(300));
#else
isg5320a_initialize(data);
isg5320a_set_mode(data, ISG5320A_MODE_NORMAL);
isg5320a_set_debug_work(data, ON, 2000);
#endif
#if defined(CONFIG_PDIC_NOTIFIER) && defined(CONFIG_USB_TYPEC_MANAGER_NOTIFIER)
manager_notifier_register(&data->cpuidle_ccic_nb,
isg5320a_ccic_handle_notification,
MANAGER_NOTIFY_PDIC_SENSORHUB);
#elif defined(CONFIG_CCIC_NOTIFIER) && defined(CONFIG_USB_TYPEC_MANAGER_NOTIFIER)
manager_notifier_register(&data->cpuidle_ccic_nb,
isg5320a_ccic_handle_notification,
MANAGER_NOTIFY_CCIC_SENSORHUB);
#elif defined(CONFIG_MUIC_NOTIFIER)
muic_notifier_register(&data->cpuidle_muic_nb,
isg5320a_cpuidle_muic_notifier, MUIC_NOTIFY_DEV_CPUIDLE);
#endif
pr_info("%s ### IMAGIS probe done ###\n", ISG5320A_TAG);
return 0;
err_sensor_register:
sysfs_remove_group(&input_dev->dev.kobj, &isg5320a_attribute_group);
err_sysfs_create_group:
sensors_remove_symlink(input_dev);
err_create_symlink:
input_unregister_device(input_dev);
err_register_input_dev:
mutex_destroy(&data->lock);
free_irq(client->irq, data);
err_irq:
err_soft_reset:
err_input_alloc:
gpio_free(data->gpio_int);
err_gpio_init:
err_parse_dt:
kfree(data);
err_kzalloc:
err:
pr_info("%s ### IMAGIS probe failed ###\n", ISG5320A_TAG);
return -ENODEV;
}
static int isg5320a_remove(struct i2c_client *client)
{
struct isg5320a_data *data = i2c_get_clientdata(client);
pr_info("%s %s\n", ISG5320A_TAG, __func__);
isg5320a_set_debug_work(data, OFF, 0);
if (data->enable == ON)
isg5320a_set_enable(data, OFF);
isg5320a_set_mode(data, ISG5320A_MODE_SLEEP);
free_irq(client->irq, data);
gpio_free(data->gpio_int);
wake_lock_destroy(&data->grip_wake_lock);
sensors_unregister(data->dev, sensor_attrs);
sensors_remove_symlink(data->input_dev);
sysfs_remove_group(&data->input_dev->dev.kobj, &isg5320a_attribute_group);
input_unregister_device(data->input_dev);
mutex_destroy(&data->lock);
kfree(data);
return 0;
}
static int isg5320a_suspend(struct device *dev)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
pr_info("%s %s\n", ISG5320A_TAG, __func__);
isg5320a_set_debug_work(data, OFF, 0);
return 0;
}
static int isg5320a_resume(struct device *dev)
{
struct isg5320a_data *data = dev_get_drvdata(dev);
pr_info("%s %s\n", ISG5320A_TAG, __func__);
isg5320a_set_debug_work(data, ON, 1000);
return 0;
}
static void isg5320a_shutdown(struct i2c_client *client)
{
struct isg5320a_data *data = i2c_get_clientdata(client);
pr_info("%s %s\n", ISG5320A_TAG, __func__);
cancel_work_sync(&data->force_cal_work);
isg5320a_set_debug_work(data, OFF, 0);
if (data->enable == ON)
isg5320a_set_enable(data, OFF);
isg5320a_set_mode(data, ISG5320A_MODE_SLEEP);
}
static const struct of_device_id isg5320a_match_table[] = {
{ .compatible = "isg5320a", },
{ },
};
static struct i2c_device_id isg5320a_id_table[] = {
{ DEVICE_NAME, 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, isg5320a_id_table);
static const struct dev_pm_ops isg5320a_pm_ops = {
.suspend = isg5320a_suspend,
.resume = isg5320a_resume,
};
static struct i2c_driver isg5320a_driver = {
.driver = {
.name = DEVICE_NAME,
.owner = THIS_MODULE,
.of_match_table = isg5320a_match_table,
.pm = &isg5320a_pm_ops,
},
.id_table = isg5320a_id_table,
.probe = isg5320a_probe,
.remove = isg5320a_remove,
.shutdown = isg5320a_shutdown,
};
static int __init isg5320a_init(void)
{
return i2c_add_driver(&isg5320a_driver);
}
static void __exit isg5320a_exit(void)
{
i2c_del_driver(&isg5320a_driver);
}
module_init(isg5320a_init);
module_exit(isg5320a_exit);
MODULE_DESCRIPTION("Imagis Grip Sensor driver");
MODULE_LICENSE("GPL");