lineage_kernel_xcoverpro/drivers/input/touchscreen/novatek/nt36672a/nt36xxx.c

1588 lines
40 KiB
C
Executable File

/*
* Copyright (C) 2010 - 2017 Novatek, Inc.
*
* $Revision: 31202 $
* $Date: 2018-07-23 10:56:09 +0800 (週一, 23 七月 2018) $
*
* 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/kernel.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/of_gpio.h>
#include <linux/input/mt.h>
#if defined(CONFIG_DRM_MSM)
/* drm structure is not use fb */
#include <linux/msm_drm_notify.h>
#endif
#if defined(CONFIG_INPUT_SEC_SECURE_TOUCH)
#include <linux/completion.h>
#include <linux/atomic.h>
#include <linux/pm_runtime.h>
#include <linux/clk.h>
#include <linux/input/sec_secure_touch.h>
#define SECURE_TOUCH_ENABLED 1
#define SECURE_TOUCH_DISABLED 0
#endif
#include "nt36xxx.h"
#define TOUCH_MAX_AREA_NUM 255
#define TOUCH_MAX_PRESSURE_NUM 1000
#define FINGER_ENTER 0x01
#define FINGER_MOVING 0x02
#define GLOVE_TOUCH 0x06
#define NVT_TS_I2C_RETRY_CNT 5
#define NVT_TS_LOCATION_DETECT_SIZE 6
#define TOUCH_PRINT_INFO_DWORK_TIME 30000 /* 30s */
int nvt_ts_sec_fn_init(struct nvt_ts_data *ts);
void nvt_ts_sec_fn_remove(struct nvt_ts_data *ts);
int nvt_ts_firmware_update_on_probe(struct nvt_ts_data *ts, bool bforce);
int nvt_ts_mode_restore(struct nvt_ts_data *ts);
int nvt_ts_mode_read(struct nvt_ts_data *ts);
#ifdef CONFIG_DISPLAY_SAMSUNG
extern int get_lcd_attached(char *mode);
#endif
#ifdef CONFIG_SAMSUNG_TUI
struct nvt_ts_data *tsp_info;
#endif
#ifdef CONFIG_INPUT_SEC_SECURE_TOUCH
static irqreturn_t secure_filter_interrupt(struct nvt_ts_data *ts)
{
if (atomic_read(&ts->secure_enabled) == SECURE_TOUCH_ENABLED) {
if (atomic_cmpxchg(&ts->secure_pending_irqs, 0, 1) == 0) {
sysfs_notify(&ts->input_dev->dev.kobj, NULL, "secure_touch");
} else {
input_err(true, &ts->client->dev, "%s: pending irq:%d\n",
__func__, (int)atomic_read(&ts->secure_pending_irqs));
}
return IRQ_HANDLED;
}
return IRQ_NONE;
}
/**
* Sysfs attr group for secure touch & interrupt handler for Secure world.
* @atomic : syncronization for secure_enabled
* @pm_runtime : set rpm_resume or rpm_ilde
*/
static ssize_t secure_touch_enable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct nvt_ts_data *ts = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%d", atomic_read(&ts->secure_enabled));
}
static ssize_t secure_touch_enable_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct nvt_ts_data *ts = dev_get_drvdata(dev);
int ret;
unsigned long data;
if (count > 2) {
input_err(true, &ts->client->dev,
"%s: cmd length is over (%s,%d)!!\n",
__func__, buf, (int)strlen(buf));
return -EINVAL;
}
ret = kstrtoul(buf, 10, &data);
if (ret != 0) {
input_err(true, &ts->client->dev, "%s: failed to read:%d\n",
__func__, ret);
return -EINVAL;
}
if (data == 1) {
/* Enable Secure World */
if (atomic_read(&ts->secure_enabled) == SECURE_TOUCH_ENABLED) {
input_err(true, &ts->client->dev,
"%s: already enabled\n", __func__);
return -EBUSY;
}
disable_irq(ts->client->irq);
if (pm_runtime_get_sync(ts->client->adapter->dev.parent) < 0) {
enable_irq(ts->client->irq);
input_err(true, &ts->client->dev,
"%s: failed to get pm_runtime\n", __func__);
return -EIO;
}
reinit_completion(&ts->secure_powerdown);
reinit_completion(&ts->secure_interrupt);
msleep(10);
atomic_set(&ts->secure_enabled, 1);
atomic_set(&ts->secure_pending_irqs, 0);
enable_irq(ts->client->irq);
input_info(true, &ts->client->dev,
"%s: secure touch enable\n", __func__);
} else if (!data) {
/* Disable Secure World */
if (atomic_read(&ts->secure_enabled) == SECURE_TOUCH_DISABLED) {
input_err(true, &ts->client->dev,
"%s: already disabled\n", __func__);
return count;
}
pm_runtime_put_sync(ts->client->adapter->dev.parent);
atomic_set(&ts->secure_enabled, 0);
sysfs_notify(&ts->input_dev->dev.kobj, NULL, "secure_touch");
msleep(10);
complete(&ts->secure_powerdown);
complete(&ts->secure_interrupt);
input_info(true, &ts->client->dev,
"%s: secure touch disable\n", __func__);
} else {
input_err(true, &ts->client->dev,
"%s: unsupported value %ld\n", __func__, data);
return -EINVAL;
}
return count;
}
static ssize_t secure_touch_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct nvt_ts_data *ts = dev_get_drvdata(dev);
int val = 0;
if (atomic_read(&ts->secure_enabled) == SECURE_TOUCH_DISABLED) {
input_err(true, &ts->client->dev, "%s: disabled\n", __func__);
return -EBADF;
}
if (atomic_cmpxchg(&ts->secure_pending_irqs, -1, 0) == -1) {
input_err(true, &ts->client->dev, "%s: pending irq -1\n", __func__);
return -EINVAL;
}
if (atomic_cmpxchg(&ts->secure_pending_irqs, 1, 0) == 1)
val = 1;
input_info(true, &ts->client->dev, "%s: pending irq is %d\n",
__func__, atomic_read(&ts->secure_pending_irqs));
complete(&ts->secure_interrupt);
return snprintf(buf, PAGE_SIZE, "%u", val);
}
static DEVICE_ATTR(secure_touch_enable, (S_IRUGO | S_IWUSR | S_IWGRP),
secure_touch_enable_show, secure_touch_enable_store);
static DEVICE_ATTR(secure_touch, S_IRUGO, secure_touch_show, NULL);
static struct attribute *secure_attr[] = {
&dev_attr_secure_touch_enable.attr,
&dev_attr_secure_touch.attr,
NULL,
};
static struct attribute_group secure_attr_group = {
.attrs = secure_attr,
};
static void secure_touch_init(struct nvt_ts_data *ts)
{
init_completion(&ts->secure_powerdown);
init_completion(&ts->secure_interrupt);
}
static void secure_touch_stop(struct nvt_ts_data *ts, bool stop)
{
if (atomic_read(&ts->secure_enabled)) {
atomic_set(&ts->secure_pending_irqs, -1);
sysfs_notify(&ts->input_dev->dev.kobj, NULL, "secure_touch");
if (stop)
wait_for_completion_interruptible(&ts->secure_powerdown);
input_info(true, &ts->client->dev, "%s: %d\n", __func__, stop);
}
}
#endif
int nvt_ts_i2c_read(struct nvt_ts_data *ts, u16 address, u8 *buf, u16 len)
{
struct i2c_msg msgs[2];
int ret = -1;
int retries = 0;
memset(&buf[1], 0x00, len - 1);
#ifdef CONFIG_INPUT_SEC_SECURE_TOUCH
if (atomic_read(&ts->secure_enabled) == SECURE_TOUCH_ENABLED) {
input_err(true, &ts->client->dev,
"%s: TSP no accessible from Linux, TUI is enabled!\n", __func__);
return -EBUSY;
}
#endif
#ifdef CONFIG_SAMSUNG_TUI
if (STUI_MODE_TOUCH_SEC & stui_get_mode())
return -EBUSY;
#endif
if (ts->power_status == POWER_OFF_STATUS) {
input_err(true, &ts->client->dev, "%s: POWER_STATUS : OFF!\n", __func__);
return -EIO;
}
msgs[0].flags = !I2C_M_RD;
msgs[0].addr = address;
msgs[0].len = 1;
msgs[0].buf = &buf[0];
msgs[1].flags = I2C_M_RD;
msgs[1].addr = address;
msgs[1].len = len - 1;
msgs[1].buf = &buf[1];
mutex_lock(&ts->i2c_mutex);
while (retries < NVT_TS_I2C_RETRY_CNT) {
ret = i2c_transfer(ts->client->adapter, msgs, 2);
if (ret == 2)
break;
if (ts->power_status == POWER_OFF_STATUS) {
input_err(true, &ts->client->dev, "%s: POWER_STATUS : OFF!\n", __func__);
mutex_unlock(&ts->i2c_mutex);
ret = -EIO;
goto err;
}
if (retries >= (NVT_TS_I2C_RETRY_CNT - 1)) {
input_err(true, &ts->client->dev, "%s: I2C retry %d, ret:%d\n", __func__, retries + 1, ret);
ts->comm_err_count++;
}
retries++;
}
mutex_unlock(&ts->i2c_mutex);
if (unlikely(retries == NVT_TS_I2C_RETRY_CNT))
input_err(true, &ts->client->dev, "%s: I2C read over retry limit\n", __func__);
err:
return ret;
}
int nvt_ts_i2c_write(struct nvt_ts_data *ts, u16 address, u8 *buf, u16 len)
{
struct i2c_msg msg;
int ret = -1;
int retries = 0;
#ifdef CONFIG_INPUT_SEC_SECURE_TOUCH
if (atomic_read(&ts->secure_enabled) == SECURE_TOUCH_ENABLED) {
input_err(true, &ts->client->dev,
"%s: TSP no accessible from Linux, TUI is enabled!\n", __func__);
return -EBUSY;
}
#endif
#ifdef CONFIG_SAMSUNG_TUI
if (STUI_MODE_TOUCH_SEC & stui_get_mode())
return -EBUSY;
#endif
if (ts->power_status == POWER_OFF_STATUS) {
input_err(true, &ts->client->dev, "%s: POWER_STATUS : OFF!\n", __func__);
return -EIO;
}
msg.flags = !I2C_M_RD;
msg.addr = address;
msg.len = len;
msg.buf = buf;
mutex_lock(&ts->i2c_mutex);
while (retries < NVT_TS_I2C_RETRY_CNT) {
ret = i2c_transfer(ts->client->adapter, &msg, 1);
if (ret == 1)
break;
if (ts->power_status == POWER_OFF_STATUS) {
input_err(true, &ts->client->dev, "%s: POWER_STATUS : OFF!\n", __func__);
mutex_unlock(&ts->i2c_mutex);
ret = -EIO;
goto err;
}
if (retries >= (NVT_TS_I2C_RETRY_CNT - 1)) {
input_err(true, &ts->client->dev, "%s: I2C retry %d, ret:%d\n", __func__, retries + 1, ret);
ts->comm_err_count++;
}
retries++;
}
mutex_unlock(&ts->i2c_mutex);
if (unlikely(retries == NVT_TS_I2C_RETRY_CNT))
input_err(true, &ts->client->dev, "%s: I2C write over retry limit\n", __func__);
err:
return ret;
}
void nvt_ts_sw_reset_idle(struct nvt_ts_data *ts)
{
u8 buf[4] = { 0 };
buf[0]=0x00;
buf[1]=0xA5;
nvt_ts_i2c_write(ts, I2C_HW_Address, buf, 2);
msleep(15);
}
void nvt_ts_bootloader_reset(struct nvt_ts_data *ts)
{
u8 buf[4] = { 0 };
buf[0] = 0x00;
buf[1] = 0x69;
nvt_ts_i2c_write(ts, I2C_HW_Address, buf, 2);
msleep(35);
}
int nvt_ts_check_fw_reset_state(struct nvt_ts_data *ts, RST_COMPLETE_STATE reset_state)
{
u8 buf[8] = { 0 };
int retry = 0;
int ret;
while (retry <= 100) {
msleep(10);
//---read reset state---
buf[0] = EVENT_MAP_RESET_COMPLETE;
nvt_ts_i2c_read(ts, I2C_FW_Address, buf, 6);
if ((buf[1] >= reset_state) && (buf[1] <= RESET_STATE_MAX)) {
ret = 0;
break;
}
retry++;
}
if (unlikely(retry > 100)) {
input_err(true, &ts->client->dev, "%s: Time over\n", __func__);
ret = -EPERM;
}
input_info(true, &ts->client->dev, "%s: %02X %02X %02X %02X %02X\n",
__func__, buf[1], buf[2], buf[3], buf[4], buf[5]);
return ret;
}
int nvt_ts_get_fw_info(struct nvt_ts_data *ts)
{
struct nvt_ts_platdata *platdata = ts->platdata;
u8 buf[20] = { 0 };
u8 fw_ver, x_num, y_num;
u16 abs_x_max, abs_y_max;
int i;
int ret = -EPERM;
for (i = 0; i < 3; i++) {
//---set xdata index to EVENT BUF ADDR---
buf[0] = 0xFF;
buf[1] = (ts->mmap->EVENT_BUF_ADDR >> 16) & 0xFF;
buf[2] = (ts->mmap->EVENT_BUF_ADDR >> 8) & 0xFF;
nvt_ts_i2c_write(ts, I2C_FW_Address, buf, 3);
//---read fw info---
buf[0] = EVENT_MAP_FWINFO;
buf[1] = 0x00;
buf[2] = 0x00;
nvt_ts_i2c_read(ts, I2C_FW_Address, buf, 20);
fw_ver = buf[1];
x_num = buf[3];
y_num = buf[4];
abs_x_max = (u16)((buf[5] << 8) | buf[6]);
abs_y_max = (u16)((buf[7] << 8) | buf[8]);
//---clear x_num, y_num if fw info is broken---
if ((buf[1] + buf[2]) == 0xFF) {
ret = 0;
break;
}
input_err(true, &ts->client->dev, "FW info is broken! fw_ver = 0x%02X, ~fw_ver = 0x%02X\n",
buf[1], buf[2]);
fw_ver = 0;
x_num = platdata->x_num;
y_num = platdata->y_num;
abs_x_max = platdata->abs_x_max;
abs_y_max = platdata->abs_y_max;
}
platdata->x_num = x_num;
platdata->y_num = y_num;
platdata->abs_x_max = abs_x_max;
platdata->abs_y_max = abs_y_max;
input_info(true, &ts->client->dev, "%s: fw_ver: %d, channel: (%d, %d), resolution: (%d,%d)\n",
__func__, fw_ver, x_num, y_num, abs_x_max, abs_y_max);
/* ic_name, project_id, panel, fw info */
// Customized version string start
//---Get IC name---
if ((trim_id_table[ts->ic_idx].id[5] == 0x03) && (trim_id_table[ts->ic_idx].id[4] == 0x66) &&
(trim_id_table[ts->ic_idx].id[3] == 0x72) && (trim_id_table[ts->ic_idx].id[0] == 0x0A)) {
ts->fw_ver_ic[0] = (((trim_id_table[ts->ic_idx].id[5] & 0x0F) << 4) | ((trim_id_table[ts->ic_idx].id[4] & 0xF0) >> 4));
} else {
ts->fw_ver_ic[0] = buf[15];
}
//---Get Novatek PID---
buf[0] = 0xFF;
buf[1] = (ts->mmap->EVENT_BUF_ADDR >> 16) & 0xFF;
buf[2] = (ts->mmap->EVENT_BUF_ADDR >> 8) & 0xFF;
ret = nvt_ts_i2c_write(ts, I2C_FW_Address, buf, 3);
if (ret < 0) {
input_err(true, &ts->client->dev, "%s: nvt_ts_i2c_write error(%d)\n",__func__, ret);
return ret;
}
buf[0] = EVENT_MAP_PROJECTID;
buf[1] = 0x00;
ret = nvt_ts_i2c_read(ts, I2C_FW_Address, buf, 2);
if (ret < 0) {
input_err(true, &ts->client->dev, "%s: nvt_ts_i2c_read error(%d)\n",__func__, ret);
return ret;
}
ts->fw_ver_ic[1] = buf[1];
//---get panel id---
buf[0] = EVENT_MAP_PANEL;
buf[1] = 0x00;
ret = nvt_ts_i2c_read(ts, I2C_FW_Address, buf, 2);
if (ret < 0) {
input_err(true, &ts->client->dev, "%s: nvt_ts_i2c_read error(%d)\n",__func__, ret);
return ret;
}
ts->fw_ver_ic[2] = buf[1];
//---get firmware version---
buf[0] = EVENT_MAP_FWINFO;
buf[1] = 0x00;
ret = nvt_ts_i2c_read(ts, I2C_FW_Address, buf, 2);
if (ret < 0) {
input_err(true, &ts->client->dev, "%s: nvt_ts_i2c_read error(%d)\n",__func__, ret);
return ret;
}
ts->fw_ver_ic[3] = buf[1];
input_info(true, &ts->client->dev, "%s: fw_ver_ic = %02X%02X%02X%02X\n",
__func__, ts->fw_ver_ic[0], ts->fw_ver_ic[1], ts->fw_ver_ic[2], ts->fw_ver_ic[3]);
input_info(true, &ts->client->dev, "%s: trim_ver_ic = %02X%02X%02X%02X\n",
__func__, trim_id_table[ts->ic_idx].id[5], trim_id_table[ts->ic_idx].id[4],
trim_id_table[ts->ic_idx].id[3], trim_id_table[ts->ic_idx].id[0]);
return ret;
}
/************************************************************
* 720 * 1480 : <48 96 60> indicator: 24dp navigator:48dp edge:60px dpi=320
* 1080 * 2220 : 4096 * 4096 : <133 266 341> (approximately value)
************************************************************/
static void location_detect(struct nvt_ts_data *ts, char *loc, int x, int y)
{
int i;
for (i = 0; i < NVT_TS_LOCATION_DETECT_SIZE; ++i)
loc[i] = 0;
if (x < ts->platdata->area_edge)
strcat(loc, "E.");
else if (x < (ts->platdata->abs_x_max - ts->platdata->area_edge))
strcat(loc, "C.");
else
strcat(loc, "e.");
if (y < ts->platdata->area_indicator)
strcat(loc, "S");
else if (y < (ts->platdata->abs_y_max - ts->platdata->area_navigation))
strcat(loc, "C");
else
strcat(loc, "N");
}
static void nvt_ts_print_info(struct nvt_ts_data *ts)
{
if (!ts->print_info_cnt_open && !ts->print_info_cnt_release) {
msleep(200);
ts->sec_function = nvt_ts_mode_read(ts);
}
ts->print_info_cnt_open++;
if (ts->print_info_cnt_open > 0xfff0)
ts->print_info_cnt_open = 0;
if (ts->touch_count == 0)
ts->print_info_cnt_release++;
input_info(true, &ts->client->dev,
"tc:%d v:%02X%02X%02X mode:%04X // #%d %d\n",
ts->touch_count, ts->fw_ver_ic[1], ts->fw_ver_ic[2], ts->fw_ver_ic[3],
ts->sec_function, ts->print_info_cnt_open, ts->print_info_cnt_release);
}
static void nvt_ts_release_all_finger(struct nvt_ts_data *ts)
{
char location[NVT_TS_LOCATION_DETECT_SIZE] = { 0, };
int i = 0;
for (i = 0; i < ts->platdata->max_touch_num; i++) {
location_detect(ts, location, ts->coords[i].x, ts->coords[i].y);
input_mt_slot(ts->input_dev, i);
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);
if (ts->coords[i].p_press) {
ts->touch_count--;
#if !defined(CONFIG_SAMSUNG_PRODUCT_SHIP)
input_info(true, &ts->client->dev,
"[RA] tId:%d loc:%s dd:%d,%d mc:%d tc:%d lx:%d ly:%d\n",
i, location, ts->coords[i].p_x - ts->coords[i].x,
ts->coords[i].p_y - ts->coords[i].y,
ts->coords[i].move_count, ts->touch_count,
ts->coords[i].x, ts->coords[i].y);
#else
input_info(true, &ts->client->dev,
"[RA] tId:%d loc:%s dd:%d,%d mc:%d tc:%d\n",
i, location, ts->coords[i].p_x - ts->coords[i].x,
ts->coords[i].p_y - ts->coords[i].y,
ts->coords[i].move_count, ts->touch_count);
#endif
ts->coords[i].p_press = false;
ts->coords[i].press = false;
}
}
input_mt_slot(ts->input_dev, 0);
input_report_key(ts->input_dev, BTN_TOUCH, false);
input_report_key(ts->input_dev, BTN_TOOL_FINGER, false);
input_sync(ts->input_dev);
ts->check_multi = false;
ts->touch_count = 0;
}
static void nvt_ts_print_coord(struct nvt_ts_data *ts)
{
int i;
char location[NVT_TS_LOCATION_DETECT_SIZE] = { 0, };
for (i = 0; i < TOUCH_MAX_FINGER_NUM; i++) {
location_detect(ts, location, ts->coords[i].x, ts->coords[i].y);
if (ts->coords[i].press && !ts->coords[i].p_press) {
ts->touch_count++;
ts->all_finger_count++;
#if !defined(CONFIG_SAMSUNG_PRODUCT_SHIP)
input_info(true, &ts->client->dev,
"[P] tId:%d.%d x:%d y:%d z:%d loc:%s tc:%d type:%X\n",
i, (ts->input_dev->mt->trkid - 1) & TRKID_MAX,
ts->coords[i].x, ts->coords[i].y, ts->coords[i].area,
location, ts->touch_count, ts->coords[i].status);
#else
input_info(true, &ts->client->dev,
"[P] tId:%d.%d z:%d loc:%s tc:%d type:%X\n",
i, (ts->input_dev->mt->trkid - 1) & TRKID_MAX,
ts->coords[i].area, location, ts->touch_count,
ts->coords[i].status);
#endif
ts->coords[i].p_press = ts->coords[i].press;
ts->coords[i].p_x = ts->coords[i].x;
ts->coords[i].p_y = ts->coords[i].y;
ts->coords[i].p_status = 0;
ts->coords[i].move_count = 0;
} else if (!ts->coords[i].press && ts->coords[i].p_press) {
ts->touch_count--;
if (!ts->touch_count)
ts->print_info_cnt_release = 0;
#if !defined(CONFIG_SAMSUNG_PRODUCT_SHIP)
input_info(true, &ts->client->dev,
"[R] tId:%d loc:%s dd:%d,%d mc:%d tc:%d lx:%d ly:%d\n",
i, location, ts->coords[i].p_x - ts->coords[i].x,
ts->coords[i].p_y - ts->coords[i].y,
ts->coords[i].move_count, ts->touch_count,
ts->coords[i].x, ts->coords[i].y);
#else
input_info(true, &ts->client->dev,
"[R] tId:%d loc:%s dd:%d,%d mc:%d tc:%d\n",
i, location, ts->coords[i].p_x - ts->coords[i].x,
ts->coords[i].p_y - ts->coords[i].y,
ts->coords[i].move_count, ts->touch_count);
#endif
ts->coords[i].p_press = false;
} else if (ts->coords[i].press) {
if (ts->coords[i].p_status && (ts->coords[i].status != ts->coords[i].p_status)) {
#if !defined(CONFIG_SAMSUNG_PRODUCT_SHIP)
input_info(true, &ts->client->dev,
"[C] tId:%d x:%d y:%d z:%d tc:%d type:%X\n",
i, ts->coords[i].x, ts->coords[i].y, ts->coords[i].area,
ts->touch_count, ts->coords[i].status);
#else
input_info(true, &ts->client->dev,
"[C] tId:%d z:%d tc:%d type:%X\n",
i, ts->coords[i].area, ts->touch_count, ts->coords[i].status);
#endif
}
ts->coords[i].p_status = ts->coords[i].status;
ts->coords[i].move_count++;
}
}
}
#define POINT_DATA_LEN 65
static void nvt_ts_event_handler(struct nvt_ts_data *ts)
{
struct nvt_ts_platdata *platdata = ts->platdata;
struct nvt_ts_event_coord *p_event_coord;
u8 point_data[POINT_DATA_LEN + 1] = { 0 };
bool press_id[TOUCH_MAX_FINGER_NUM] = { 0 };
u16 x, y, w, p;
u8 id, status;
int finger_cnt;
int i;
int ret;
ret = nvt_ts_i2c_read(ts, I2C_FW_Address, point_data, POINT_DATA_LEN + 1);
if (ret < 0) {
input_err(true, &ts->client->dev, "nvt_ts_i2c_read failed.(%d)\n", ret);
return;
}
/*
//--- dump I2C buf ---
for (i = 0; i < 10; i++) {
printk("[sec_input] %02X %02X %02X %02X %02X %02X ", point_data[1+i*6], point_data[2+i*6], point_data[3+i*6], point_data[4+i*6], point_data[5+i*6], point_data[6+i*6]);
}
printk("\n");
*/
for (i = 0, finger_cnt = 0; i < platdata->max_touch_num; i++) {
p_event_coord = (struct nvt_ts_event_coord *)&point_data[1 + 6 * i];
id = p_event_coord->id;
if (!id || (id > platdata->max_touch_num))
continue;
id = id - 1;
status = p_event_coord->status;
if ((status == FINGER_ENTER) || (status == FINGER_MOVING) || (status == GLOVE_TOUCH)) {
ts->coords[id].status = status;
press_id[id] = ts->coords[id].press = true;
x = ts->coords[id].x = (u32)(p_event_coord->x_11_4 << 4) + (u32)(p_event_coord->x_3_0);
y = ts->coords[id].y = (u32)(p_event_coord->y_11_4 << 4) + (u32)(p_event_coord->y_3_0);
if ((x < 0) || (y < 0) || (x > platdata->abs_x_max) || (y > platdata->abs_y_max)) {
input_err(true, &ts->client->dev, "%s: invaild coordinate (%d, %d)\n",
__func__, x, y);
continue;
}
w = ts->coords[id].area = (u32)(p_event_coord->area);
if (!w)
w = 1;
if (i < 2) {
p = (u32)(p_event_coord->pressure_7_0) + (u32)(point_data[i + 62] << 8);
if (p > TOUCH_MAX_PRESSURE_NUM)
p = TOUCH_MAX_PRESSURE_NUM;
} else {
p = (u32)(p_event_coord->pressure_7_0);
}
if (!p)
p = 1;
ts->coords[id].p = p;
input_mt_slot(ts->input_dev, id);
input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);
input_report_abs(ts->input_dev, ABS_MT_POSITION_X, x);
input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, y);
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, w);
//input_report_abs(ts->input_dev, ABS_MT_PRESSURE, p);
finger_cnt++;
}
}
for (i = 0; i < platdata->max_touch_num; i++) {
if (!press_id[i] && ts->coords[i].p_press) {
ts->coords[i].press = false;
input_mt_slot(ts->input_dev, i);
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
//input_report_abs(ts->input_dev, ABS_MT_PRESSURE, 0);
input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);
}
}
input_report_key(ts->input_dev, BTN_TOUCH, (finger_cnt > 0));
input_report_key(ts->input_dev, BTN_TOOL_FINGER, (finger_cnt > 0));
input_sync(ts->input_dev);
if (!finger_cnt) {
ts->check_multi = false;
} else if ((finger_cnt > 4) && !ts->check_multi) {
ts->check_multi = true;
ts->multi_count++;
}
nvt_ts_print_coord(ts);
}
static irqreturn_t nvt_ts_irq_thread(int32_t irq, void *dev_id)
{
struct nvt_ts_data *ts = (struct nvt_ts_data *)dev_id;
#ifdef CONFIG_INPUT_SEC_SECURE_TOUCH
if (IRQ_HANDLED == secure_filter_interrupt(ts)) {
wait_for_completion_interruptible_timeout(&ts->secure_interrupt,
msecs_to_jiffies(5 * MSEC_PER_SEC));
input_info(true, &ts->client->dev,
"%s: secure interrupt handled\n", __func__);
return IRQ_HANDLED;
}
#endif
nvt_ts_event_handler(ts);
return IRQ_HANDLED;
}
void nvt_ts_stop_crc_reboot(struct nvt_ts_data *ts)
{
u8 buf[8] = { 0 };
int retry = 0;
//read dummy buffer to check CRC fail reboot is happening or not
//---change I2C index to prevent geting 0xFF, but not 0xFC---
buf[0] = 0xFF;
buf[1] = (CHIP_VER_TRIM_ADDR >> 16) & 0xFF;
buf[2] = (CHIP_VER_TRIM_ADDR >> 8) & 0xFF;
nvt_ts_i2c_write(ts, I2C_BLDR_Address, buf, 3);
//---read to check if buf is 0xFC which means IC is in CRC reboot ---
buf[0] = CHIP_VER_TRIM_ADDR & 0xFF;
buf[1] = 0x00;
buf[2] = 0x00;
buf[3] = 0x00;
nvt_ts_i2c_read(ts, I2C_BLDR_Address, buf, 4);
if ((buf[1] == 0xFC) ||
((buf[1] == 0xFF) && (buf[2] == 0xFF) && (buf[3] == 0xFF))) {
//IC is in CRC fail reboot loop, needs to be stopped!
for (retry = 5; retry > 0; retry--) {
//---write i2c cmds to reset idle : 1st---
buf[0]=0x00;
buf[1]=0xA5;
nvt_ts_i2c_write(ts, I2C_HW_Address, buf, 2);
//---write i2c cmds to reset idle : 2rd---
buf[0]=0x00;
buf[1]=0xA5;
nvt_ts_i2c_write(ts, I2C_HW_Address, buf, 2);
msleep(1);
//---clear CRC_ERR_FLAG---
buf[0] = 0xFF;
buf[1] = 0x03;
buf[2] = 0xF1;
nvt_ts_i2c_write(ts, I2C_BLDR_Address, buf, 3);
buf[0] = 0x35;
buf[1] = 0xA5;
nvt_ts_i2c_write(ts, I2C_BLDR_Address, buf, 2);
//---check CRC_ERR_FLAG---
buf[0] = 0xFF;
buf[1] = 0x03;
buf[2] = 0xF1;
nvt_ts_i2c_write(ts, I2C_BLDR_Address, buf, 3);
buf[0] = 0x35;
buf[1] = 0x00;
nvt_ts_i2c_read(ts, I2C_BLDR_Address, buf, 2);
if (buf[1] == 0xA5)
break;
}
if (retry == 0)
input_err(true, &ts->client->dev,
"failed to stop CRC auto reboot [0x%02X]\n", buf[1]);
}
return;
}
/*******************************************************
Description:
Novatek touchscreen check chip version trim function.
return:
Executive outcomes. 0---NVT IC. -1---not NVT IC.
*******************************************************/
static int8_t nvt_ts_check_chip_ver_trim(struct nvt_ts_data *ts, uint32_t chip_ver_trim_addr)
{
uint8_t buf[8] = {0};
int32_t retry = 0;
int32_t list = 0;
int32_t i = 0;
nvt_ts_bootloader_reset(ts); // NOT in retry loop
//---Check for 5 times---
for (retry = 5; retry > 0; retry--) {
nvt_ts_sw_reset_idle(ts);
buf[0] = 0x00;
buf[1] = 0x35;
nvt_ts_i2c_write(ts, I2C_HW_Address, buf, 2);
msleep(10);
buf[0] = 0xFF;
buf[1] = (chip_ver_trim_addr >> 16) & 0xFF;
buf[2] = (chip_ver_trim_addr >> 8) & 0xFF;
nvt_ts_i2c_write(ts, I2C_BLDR_Address, buf, 3);
buf[0] = chip_ver_trim_addr & 0xFF;
buf[1] = 0x00;
buf[2] = 0x00;
buf[3] = 0x00;
buf[4] = 0x00;
buf[5] = 0x00;
buf[6] = 0x00;
nvt_ts_i2c_read(ts, I2C_BLDR_Address, buf, 7);
input_info(true, &ts->client->dev, "IC version: %02X %02X %02X %02X %02X %02X\n",
buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
//---Stop CRC check to prevent IC auto reboot---
if ((buf[1] == 0xFC) ||
((buf[1] == 0xFF) && (buf[2] == 0xFF) && (buf[3] == 0xFF))) {
nvt_ts_stop_crc_reboot(ts);
continue;
}
// compare read chip id on supported list
for (list = 0; list < (sizeof(trim_id_table) / sizeof(struct nvt_ts_trim_id_table)); list++) {
// compare each byte
for (i = 0; i < NVT_ID_BYTE_MAX; i++) {
if (trim_id_table[list].mask[i]) {
if (buf[i + 1] != trim_id_table[list].id[i])
break;
}
}
if (i == NVT_ID_BYTE_MAX) {
input_info(true, &ts->client->dev, "found match ic version\n");
ts->mmap = trim_id_table[list].mmap;
ts->carrier_system = trim_id_table[list].hwinfo->carrier_system;
ts->ic_idx = list;
return 0;
} else {
ts->mmap = NULL;
}
}
msleep(10);
}
return -ENODEV;
}
static int nvt_ts_open(struct nvt_ts_data *ts)
{
input_info(true, &ts->client->dev, "%s\n", __func__);
if (ts->power_status == POWER_ON_STATUS) {
input_err(true, &ts->client->dev, "%s: already power on\n", __func__);
return 0;
}
#if defined(CONFIG_INPUT_SEC_SECURE_TOUCH)
secure_touch_stop(ts, 0);
#endif
mutex_lock(&ts->lock);
ts->power_status = POWER_ON_STATUS;
nvt_ts_bootloader_reset(ts);
nvt_ts_check_fw_reset_state(ts, RESET_STATE_REK);
nvt_ts_mode_restore(ts);
enable_irq(ts->client->irq);
mutex_unlock(&ts->lock);
cancel_delayed_work(&ts->work_print_info);
ts->print_info_cnt_open = 0;
ts->print_info_cnt_release = 0;
schedule_work(&ts->work_print_info.work);
return 0;
}
static void nvt_ts_close(struct nvt_ts_data *ts)
{
u16 mode;
char buf[2];
if (ts->power_status == POWER_OFF_STATUS) {
input_err(true, &ts->client->dev, "%s: already power off\n", __func__);
return;
}
cancel_delayed_work(&ts->work_print_info);
#if defined(CONFIG_INPUT_SEC_SECURE_TOUCH)
secure_touch_stop(ts, 1);
#endif
#ifdef CONFIG_SAMSUNG_TUI
stui_cancel_session();
#endif
mutex_lock(&ts->lock);
disable_irq(ts->client->irq);
nvt_ts_print_info(ts);
mode = nvt_ts_mode_read(ts);
if (ts->sec_function != mode) {
input_info(true, &ts->client->dev, "%s: func mode 0x%04X -> 0x%04X",
__func__, ts->sec_function, mode);
ts->sec_function = mode;
}
//---write i2c command to enter "deep sleep mode"---
buf[0] = EVENT_MAP_HOST_CMD;
buf[1] = 0x11;
nvt_ts_i2c_write(ts, I2C_FW_Address, buf, 2);
ts->power_status = POWER_OFF_STATUS;
ts->untouchable_area = false;
msleep(50);
nvt_ts_release_all_finger(ts);
mutex_unlock(&ts->lock);
input_info(true, &ts->client->dev, "%s", __func__);
}
static void nvt_ts_open_work(struct kthread_work *work)
{
struct nvt_ts_data *ts = container_of(work, struct nvt_ts_data, kwork);
nvt_ts_open(ts);
}
static void nvt_ts_set_input_value(struct nvt_ts_data *ts, struct input_dev *input_dev)
{
input_dev->name = "sec_touchscreen";
input_dev->id.bustype = BUS_I2C;
input_dev->dev.parent = &ts->client->dev;
input_mt_init_slots(input_dev, TOUCH_MAX_FINGER_NUM, INPUT_MT_DIRECT);
input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, ts->platdata->abs_x_max, 0, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0, ts->platdata->abs_y_max, 0, 0);
input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, TOUCH_MAX_AREA_NUM, 0, 0);
//input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, TOUCH_MAX_PRESSURE_NUM, 0, 0);
input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
input_set_capability(input_dev, EV_KEY, BTN_TOOL_FINGER);
ts->input_dev = input_dev;
input_set_drvdata(input_dev, ts);
}
#if defined(CONFIG_DRM_MSM)
static int drm_notifier_callback(struct notifier_block *self, unsigned long event, void *data)
{
struct msm_drm_notifier *evdata = data;
int *blank;
struct nvt_ts_data *ts =
container_of(self, struct nvt_ts_data, drm_notif);
if (!evdata)
return 0;
if (!evdata->data)
return 0;
/* tsp driver do not need callback about sub display */
if (evdata->id)
return 0;
blank = evdata->data;
if (event == MSM_DRM_EARLY_EVENT_BLANK) {
if (*blank == MSM_DRM_BLANK_POWERDOWN)
nvt_ts_close(ts);
} else if (event == MSM_DRM_EVENT_BLANK) {
if (*blank == MSM_DRM_BLANK_UNBLANK)
nvt_ts_open(ts);
}
return 0;
}
#endif
#if defined(CONFIG_FB)
static int fb_notifier_cb(struct notifier_block *nb, unsigned long event, void *data)
{
struct nvt_ts_data *ts = container_of(nb, struct nvt_ts_data, fb_nb);
struct fb_event *evdata = data;
int *blank;
if (!evdata || !evdata->data)
return 0;
blank = evdata->data;
if (event == FB_EARLY_EVENT_BLANK) {
if (*blank == FB_BLANK_POWERDOWN)
nvt_ts_close(ts);
} else if (event == FB_EVENT_BLANK) {
if (*blank == FB_BLANK_UNBLANK)
kthread_queue_work(&ts->kworker, &ts->kwork);
}
return 0;
}
#endif
static void nvt_ts_print_info_work(struct work_struct *work)
{
struct nvt_ts_data *ts = container_of(work, struct nvt_ts_data,
work_print_info.work);
mutex_lock(&ts->lock);
nvt_ts_print_info(ts);
mutex_unlock(&ts->lock);
schedule_delayed_work(&ts->work_print_info, msecs_to_jiffies(TOUCH_PRINT_INFO_DWORK_TIME));
}
static int nvt_ts_gpio_config(struct device *dev, struct nvt_ts_platdata *platdata)
{
int ret;
ret = devm_gpio_request(dev, platdata->irq_gpio, "nvt_irq");
if (ret) {
input_err(true, dev, "failed to request nvt_irq [%d]\n", ret);
return ret;
}
return 0;
}
#ifdef CONFIG_OF
static struct nvt_ts_platdata *nvt_ts_parse_dt(struct device *dev)
{
struct nvt_ts_platdata *platdata;
struct device_node *np = dev->of_node;
int tmp[3];
int ret;
#if !defined(CONFIG_EXYNOS_DPU20)
int lcdtype = 0;
#endif
#if defined(CONFIG_EXYNOS_DECON_FB)
int connected;
#endif
if (!np)
return ERR_PTR(-ENODEV);
#if defined(CONFIG_DISPLAY_SAMSUNG)
lcdtype = get_lcd_attached("GET");
if (lcdtype == 0xFFFFFF) {
input_err(true, dev, "lcd is not attached\n");
return ERR_PTR(-ENODEV);
}
#endif
#if defined(CONFIG_EXYNOS_DECON_FB)
connected = get_lcd_info("connected");
if (connected < 0) {
input_err(true, dev, "failed to get lcd connected info\n");
return ERR_PTR(-EINVAL);
}
if (!connected) {
input_err(true, dev, "lcd is not attached\n");
return ERR_PTR(-ENODEV);
}
lcdtype = get_lcd_info("id");
if (lcdtype < 0) {
input_err(true, dev, "failed to get lcd id info\n");
return ERR_PTR(-EINVAL);
}
#endif
#if defined(CONFIG_EXYNOS_DPU20)
if (lcdtype == 0) {
input_err(true, dev, "lcd is not attached\n");
return ERR_PTR(-ENODEV);
}
#endif
input_info(true, dev, "lcdtype 0x%08X\n", lcdtype);
platdata = devm_kzalloc(dev, sizeof(*platdata), GFP_KERNEL);
if (!platdata)
return ERR_PTR(-ENOMEM);
platdata->irq_gpio = of_get_named_gpio_flags(np, "novatek,irq-gpio", 0, &platdata->irq_flags);
if (!gpio_is_valid(platdata->irq_gpio)) {
input_err(true, dev, "failed to get irq-gpio(%d)\n", platdata->irq_gpio);
return ERR_PTR(platdata->irq_gpio);
} else if (!platdata->irq_flags) {
platdata->irq_flags = IRQF_TRIGGER_LOW | IRQF_ONESHOT;
}
platdata->support_dual_fw = of_property_read_bool(np, "support_dual_fw");
ret = of_property_read_string(np, "novatek,firmware_name", &platdata->firmware_name);
/* LCD type old NT36672A:12F240 LCD type new NT36672C:4BF245 */
if(platdata->support_dual_fw && lcdtype == 0x4BF245)
{
ret = of_property_read_string(np, "novatek,firmware_name_new_ic", &platdata->firmware_name);
}
if (ret)
platdata->firmware_name = NULL;
ret = of_property_read_u32_array(np, "novatek,resolution", tmp, 2);
if (!ret) {
platdata->abs_x_max = tmp[0];
platdata->abs_y_max = tmp[1];
} else {
platdata->abs_x_max = DEFAULT_MAX_WIDTH;
platdata->abs_x_max = DEFAULT_MAX_HEIGHT;
}
ret = of_property_read_u32_array(np, "novatek,max_touch_num", tmp, 1);
if (!ret)
platdata->max_touch_num = tmp[0];
else
platdata->max_touch_num = 10;
if (of_property_read_u32_array(np, "novatek,area-size", tmp, 3)) {
platdata->area_indicator = 133;
platdata->area_navigation = 266;
platdata->area_edge = 341;
} else {
platdata->area_indicator = tmp[0];
platdata->area_navigation = tmp[1];
platdata->area_edge = tmp[2];
}
if (of_property_read_u32(np, "novatek,bringup", &platdata->bringup) < 0)
platdata->bringup = 0;
platdata->check_fw_project_id = of_property_read_bool(np, "check_fw_project_id");
input_info(true, dev, "zone's size - indicator:%d, navigation:%d, edge:%d\n",
platdata->area_indicator, platdata->area_navigation, platdata->area_edge);
input_info(true, dev, "bringup:%d, resolution: (%d, %d), firware_name: %s\n",
platdata->bringup, platdata->abs_x_max, platdata->abs_y_max,
platdata->firmware_name);
return platdata;
}
#else
static struct nvt_ts_platdata *nvt_ts_parse_dt(struct device *dev)
{
input_err(true, &dev, "no platform data specified\n");
return ERR_PTR(-EINVAL);
}
#endif
static int nvt_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct nvt_ts_data *ts;
struct nvt_ts_platdata *platdata = dev_get_platdata(&client->dev);
struct input_dev *input_dev;
struct task_struct *kworker_task;
int ret;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
input_err(true, &client->dev, "I2C functionality not supported\n");
return -EIO;
}
ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);
if (!ts)
return -ENOMEM;
if (!platdata) {
platdata = nvt_ts_parse_dt(&client->dev);
if (IS_ERR(platdata))
return PTR_ERR(platdata);
}
input_dev = devm_input_allocate_device(&client->dev);
if (!input_dev)
return -ENOMEM;
ret = nvt_ts_gpio_config(&client->dev, platdata);
if (ret)
return ret;
ts->client = client;
ts->platdata = platdata;
i2c_set_clientdata(client, ts);
mutex_init(&ts->lock);
mutex_init(&ts->i2c_mutex);
INIT_DELAYED_WORK(&ts->work_print_info, nvt_ts_print_info_work);
kthread_init_worker(&ts->kworker);
kworker_task = kthread_run(kthread_worker_fn,
&ts->kworker, "sec_touchscreen");
if (IS_ERR(kworker_task)) {
input_err(true, &client->dev, "Failed to create resume thread\n");
goto err_kthread;
}
kthread_init_work(&ts->kwork, nvt_ts_open_work);
ts->power_status = POWER_ON_STATUS;
/* need 10ms delay after POR(power on reset) */
msleep(10);
/* check chip version trim */
ret = nvt_ts_check_chip_ver_trim(ts, CHIP_VER_TRIM_ADDR);
if (ret) {
input_err(true, &client->dev, "try to check from old chip ver trim address\n");
ret = nvt_ts_check_chip_ver_trim(ts, CHIP_VER_TRIM_OLD_ADDR);
if (ret) {
input_err(true, &client->dev, "chip is not identified\n");
ret = -EINVAL;
goto err_check_trim;
}
}
nvt_ts_bootloader_reset(ts);
nvt_ts_check_fw_reset_state(ts, RESET_STATE_INIT);
ret = nvt_ts_firmware_update_on_probe(ts, false);
if (ret) {
input_err(true, &client->dev, "failed to firmware update\n");
goto err_fw_update;
}
nvt_ts_get_fw_info(ts);
nvt_ts_set_input_value(ts, input_dev);
ret = input_register_device(input_dev);
if (ret) {
input_err(true, &client->dev, "failed to register input device\n");
goto err_input_regi_dev;
}
ts->sec_function = nvt_ts_mode_read(ts);
input_info(true, &ts->client->dev, "%s: default func mode 0x%04X\n", __func__, ts->sec_function);
client->irq = gpio_to_irq(platdata->irq_gpio);
ret = devm_request_threaded_irq(&client->dev, client->irq, NULL, nvt_ts_irq_thread,
platdata->irq_flags, client->name, ts);
if (ret < 0) {
input_err(true, &client->dev, "failed to request irq\n");
goto err_regi_irq;
}
#if defined(CONFIG_DRM_MSM)
ts->drm_notif.notifier_call = drm_notifier_callback;
ret = msm_drm_register_client(&ts->drm_notif);
if (ret) {
input_err(true, &client->dev, "failed to register msm drm notifier ret=%d\n", ret);
goto err_regi_drm_notif;
}
#endif
#if defined(CONFIG_FB)
ts->fb_nb.notifier_call = fb_notifier_cb;
ret = fb_register_client(&ts->fb_nb);
if (ret) {
input_err(true, &client->dev, "failed to register fb notifier ret=%d\n", ret);
goto err_regi_fb_notif;
}
#endif
ret = nvt_ts_sec_fn_init(ts);
if (ret) {
input_err(true, &client->dev, "failed to init for factory function\n");
goto err_init_sec_fn;
}
#ifdef CONFIG_INPUT_SEC_SECURE_TOUCH
ts->ss_touch_num = 1;
if (sysfs_create_group(&ts->input_dev->dev.kobj, &secure_attr_group) >= 0)
sec_secure_touch_register(ts, ts->ss_touch_num, &ts->input_dev->dev.kobj);
else
input_err(true, &client->dev, "failed create sysfs group\n");
secure_touch_init(ts);
#endif
#ifdef CONFIG_SAMSUNG_TUI
tsp_info = ts;
#endif
#if !defined(CONFIG_SAMSUNG_PRODUCT_SHIP)
nvt_ts_flash_proc_init(ts);
#endif
schedule_delayed_work(&ts->work_print_info, msecs_to_jiffies(50));
input_err(true, &client->dev, "initialization is done\n");
input_log_fix();
return 0;
err_init_sec_fn:
#if defined(CONFIG_FB)
fb_unregister_client(&ts->fb_nb);
err_regi_fb_notif:
#endif
#if defined(CONFIG_DRM_MSM)
msm_drm_unregister_client(&ts->drm_notif);
err_regi_drm_notif:
#endif
err_regi_irq:
err_input_regi_dev:
err_fw_update:
err_check_trim:
err_kthread:
mutex_destroy(&ts->lock);
mutex_destroy(&ts->i2c_mutex);
input_err(true, &client->dev, "failed to initialization\n");
input_log_fix();
return ret;
}
#ifdef CONFIG_PM
static int nvt_ts_suspend(struct device *dev)
{
return 0;
}
static int nvt_ts_resume(struct device *dev)
{
return 0;
}
static SIMPLE_DEV_PM_OPS(nvt_ts_dev_pm_ops, nvt_ts_suspend, nvt_ts_resume);
#endif
static void nvt_ts_shutdown(struct i2c_client *client)
{
struct nvt_ts_data *ts = i2c_get_clientdata(client);
free_irq(client->irq, ts);
input_info(true, &ts->client->dev, "%s\n", __func__);
}
static int nvt_ts_remove(struct i2c_client *client)
{
struct nvt_ts_data *ts = i2c_get_clientdata(client);
#if defined(CONFIG_FB)
fb_unregister_client(&ts->fb_nb);
#endif
#if defined(CONFIG_DRM_MSM)
msm_drm_unregister_client(&ts->drm_notif);
#endif
mutex_destroy(&ts->lock);
mutex_destroy(&ts->i2c_mutex);
input_info(true, &ts->client->dev, "%s\n", __func__);
return 0;
}
#ifdef CONFIG_SAMSUNG_TUI
extern int stui_i2c_lock(struct i2c_adapter *adap);
extern int stui_i2c_unlock(struct i2c_adapter *adap);
int stui_tsp_enter(void)
{
int ret = 0;
if (!tsp_info)
return -EINVAL;
disable_irq(tsp_info->client->irq);
ret = stui_i2c_lock(tsp_info->client->adapter);
if (ret) {
pr_err("[STUI] stui_i2c_lock failed : %d\n", ret);
enable_irq(tsp_info->client->irq);
return -1;
}
return 0;
}
int stui_tsp_exit(void)
{
int ret = 0;
if (!tsp_info)
return -EINVAL;
ret = stui_i2c_unlock(tsp_info->client->adapter);
if (ret)
pr_err("[STUI] stui_i2c_unlock failed : %d\n", ret);
enable_irq(tsp_info->client->irq);
return ret;
}
#endif
static const struct i2c_device_id nvt_ts_id[] = {
{ NVT_I2C_NAME, 0 },
{ }
};
#ifdef CONFIG_OF
static struct of_device_id nvt_match_table[] = {
{ .compatible = "novatek,nvt-ts",},
{ },
};
#endif
static struct i2c_driver nvt_i2c_driver = {
.driver = {
.name = NVT_I2C_NAME,
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &nvt_ts_dev_pm_ops,
#endif
.of_match_table = of_match_ptr(nvt_match_table),
},
.probe = nvt_ts_probe,
.remove = nvt_ts_remove,
.shutdown = nvt_ts_shutdown,
.id_table = nvt_ts_id,
};
#ifdef CONFIG_BATTERY_SAMSUNG
extern unsigned int lpcharge;
#endif
static int __init nvt_ts_driver_init(void)
{
int ret = 0;
#ifdef CONFIG_BATTERY_SAMSUNG
if (lpcharge) {
pr_info("%s: %s: Do not load driver due to lpm %d\n",
SECLOG, __func__, lpcharge);
return ret;
}
#endif
ret = i2c_add_driver(&nvt_i2c_driver);
if (ret)
pr_err("%s: %s: failed to add i2c driver\n", SECLOG, __func__);
return ret;
}
static void __exit nvt_ts_driver_exit(void)
{
i2c_del_driver(&nvt_i2c_driver);
}
late_initcall_sync(nvt_ts_driver_init);
module_exit(nvt_ts_driver_exit);
MODULE_DESCRIPTION("Novatek Touchscreen Driver");
MODULE_LICENSE("GPL");