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nest-open-source / manifest_repos / kernel / 4f18c0c0649c21299b096883d4328736d60f04cc / . / drivers / input / touchscreen / focaltech_touch_ft8201 / focaltech_core.c
blob: 44147ec52737de887140a80d15e5383c16ce0207 [file] [log] [blame]
/*
*
* FocalTech TouchScreen driver.
*
* Copyright (c) 2012-2018, FocalTech Systems, Ltd., all rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
/*****************************************************************************
*
* File Name: focaltech_core.c
*
* Author: Focaltech Driver Team
*
* Created: 2016-08-08
*
* Abstract: entrance for focaltech ts driver
*
* Version: V1.0
*
*****************************************************************************/
/*****************************************************************************
* Included header files
*****************************************************************************/
#include "focaltech_core.h"
#if defined(CONFIG_FB)
#include <linux/notifier.h>
#include <linux/fb.h>
#elif defined(CONFIG_HAS_EARLYSUSPEND)
#include <linux/earlysuspend.h>
#define FTS_SUSPEND_LEVEL 1 /* Early-suspend level */
#endif
/*****************************************************************************
* Private constant and macro definitions using #define
*****************************************************************************/
#define FTS_DRIVER_NAME "fts_ts"
#define INTERVAL_READ_REG 100 /* unit:ms */
#define TIMEOUT_READ_REG 1000 /* unit:ms */
#if FTS_POWER_SOURCE_CUST_EN
#define FTS_VTG_MIN_UV 2600000
#define FTS_VTG_MAX_UV 3300000
#define FTS_I2C_VTG_MIN_UV 1800000
#define FTS_I2C_VTG_MAX_UV 1800000
#endif
/*****************************************************************************
* Global variable or extern global variabls/functions
*****************************************************************************/
struct fts_ts_data *fts_data;
/*****************************************************************************
* Static function prototypes
*****************************************************************************/
static void fts_release_all_finger(void);
static int fts_ts_suspend(struct device *dev);
static int fts_ts_resume(struct device *dev);
/*****************************************************************************
* Name: fts_wait_tp_to_valid
* Brief: Read chip id until TP FW become valid(Timeout: TIMEOUT_READ_REG),
* need call when reset/power on/resume...
* Input:
* Output:
* Return: return 0 if tp valid, otherwise return error code
*****************************************************************************/
int fts_wait_tp_to_valid(struct i2c_client *client)
{
int ret = 0;
int cnt = 0;
u8 reg_value = 0;
u8 chip_id = fts_data->ic_info.ids.chip_idh;
do {
ret = fts_i2c_read_reg(client, FTS_REG_CHIP_ID, &reg_value);
if ((ret < 0) || (reg_value != chip_id)) {
FTS_INFO("TP Not Ready, ReadData = 0x%x", reg_value);
} else if (reg_value == chip_id) {
FTS_INFO("TP Ready, Device ID = 0x%x", reg_value);
return 0;
}
cnt++;
msleep(INTERVAL_READ_REG);
} while ((cnt * INTERVAL_READ_REG) < TIMEOUT_READ_REG);
return -EIO;
}
/************************************************************************
* Name: fts_get_chip_types
* Brief: verity chip id and get chip type data
* Input:
* Output:
* Return: return 0 if success, otherwise return error code
***********************************************************************/
static int fts_get_chip_types(
struct fts_ts_data *ts_data,
u8 id_h, u8 id_l, bool fw_valid)
{
int i = 0;
struct ft_chip_t ctype[] = FTS_CHIP_TYPE_MAPPING;
u32 ctype_entries = sizeof(ctype) / sizeof(struct ft_chip_t);
if ((0x0 == id_h) || (0x0 == id_l)) {
FTS_ERROR("id_h/id_l is 0");
return -EINVAL;
}
FTS_INFO("verify id:0x%02x%02x", id_h, id_l);
for (i = 0; i < ctype_entries; i++) {
if (VALID == fw_valid) {
if ((id_h == ctype[i].chip_idh) && (id_l == ctype[i].chip_idl))
break;
} else {
if (((id_h == ctype[i].rom_idh) && (id_l == ctype[i].rom_idl))
|| ((id_h == ctype[i].pb_idh) && (id_l == ctype[i].pb_idl))
|| ((id_h == ctype[i].bl_idh) && (id_l == ctype[i].bl_idl)))
break;
}
}
if (i >= ctype_entries) {
return -ENODATA;
}
ts_data->ic_info.ids = ctype[i];
return 0;
}
/*****************************************************************************
* Name: fts_get_ic_information
* Brief:
* Input:
* Output:
* Return: return 0 if success, otherwise return error code
*****************************************************************************/
static int fts_get_ic_information(struct fts_ts_data *ts_data)
{
int ret = 0;
int cnt = 0;
u8 chip_id[2] = { 0 };
u8 id_cmd[4] = { 0 };
u32 id_cmd_len = 0;
struct i2c_client *client = ts_data->client;
ts_data->ic_info.is_incell = FTS_CHIP_IDC;
ts_data->ic_info.hid_supported = FTS_HID_SUPPORTTED;
do {
ret = fts_i2c_read_reg(client, FTS_REG_CHIP_ID, &chip_id[0]);
ret = fts_i2c_read_reg(client, FTS_REG_CHIP_ID2, &chip_id[1]);
if ((ret < 0) || (0x0 == chip_id[0]) || (0x0 == chip_id[1])) {
FTS_INFO("i2c read invalid, read:0x%02x%02x", chip_id[0], chip_id[1]);
} else {
ret = fts_get_chip_types(ts_data, chip_id[0], chip_id[1], INVALID);
if (!ret)
break;
else
FTS_INFO("TP not ready, read:0x%02x%02x", chip_id[0], chip_id[1]);
}
cnt++;
msleep(INTERVAL_READ_REG);
} while ((cnt * INTERVAL_READ_REG) < TIMEOUT_READ_REG);
if ((cnt * INTERVAL_READ_REG) >= TIMEOUT_READ_REG) {
FTS_INFO("fw is invalid, need read boot id");
if (ts_data->ic_info.hid_supported) {
fts_i2c_hid2std(client);
}
id_cmd[0] = FTS_CMD_START1;
id_cmd[1] = FTS_CMD_START2;
ret = fts_i2c_write(client, id_cmd, 2);
if (ret < 0) {
FTS_ERROR("start cmd write fail");
return ret;
}
msleep(FTS_CMD_START_DELAY);
id_cmd[0] = FTS_CMD_READ_ID;
id_cmd[1] = id_cmd[2] = id_cmd[3] = 0x00;
if (ts_data->ic_info.is_incell)
id_cmd_len = FTS_CMD_READ_ID_LEN_INCELL;
else
id_cmd_len = FTS_CMD_READ_ID_LEN;
ret = fts_i2c_read(client, id_cmd, id_cmd_len, chip_id, 2);
if ((ret < 0) || (0x0 == chip_id[0]) || (0x0 == chip_id[1])) {
FTS_ERROR("read boot id fail");
return -EIO;
}
ret = fts_get_chip_types(ts_data, chip_id[0], chip_id[1], INVALID);
if (ret < 0) {
FTS_ERROR("can't get ic informaton");
return ret;
}
}
FTS_INFO("get ic information, chip id = 0x%02x%02x",
ts_data->ic_info.ids.chip_idh, ts_data->ic_info.ids.chip_idl);
return 0;
}
/*****************************************************************************
* Name: fts_tp_state_recovery
* Brief: Need execute this function when reset
* Input:
* Output:
* Return:
*****************************************************************************/
void fts_tp_state_recovery(struct i2c_client *client)
{
FTS_FUNC_ENTER();
/* wait tp stable */
fts_wait_tp_to_valid(client);
/* recover TP charger state 0x8B */
/* recover TP glove state 0xC0 */
/* recover TP cover state 0xC1 */
fts_ex_mode_recovery(client);
/* recover TP gesture state 0xD0 */
#if FTS_GESTURE_EN
fts_gesture_recovery(client);
#endif
FTS_FUNC_EXIT();
}
/*****************************************************************************
* Name: fts_reset_proc
* Brief: Execute reset operation
* Input: hdelayms - delay time unit:ms
* Output:
* Return:
*****************************************************************************/
int fts_reset_proc(int hdelayms)
{
FTS_FUNC_ENTER();
gpio_direction_output(fts_data->pdata->reset_gpio, 0);
msleep(20);
gpio_direction_output(fts_data->pdata->reset_gpio, 1);
if (hdelayms) {
msleep(hdelayms);
}
FTS_FUNC_EXIT();
return 0;
}
/*****************************************************************************
* Name: fts_irq_disable
* Brief: disable irq
* Input:
* Output:
* Return:
*****************************************************************************/
void fts_irq_disable(void)
{
unsigned long irqflags;
FTS_FUNC_ENTER();
spin_lock_irqsave(&fts_data->irq_lock, irqflags);
if (!fts_data->irq_disabled) {
disable_irq_nosync(fts_data->irq);
fts_data->irq_disabled = true;
}
spin_unlock_irqrestore(&fts_data->irq_lock, irqflags);
FTS_FUNC_EXIT();
}
/*****************************************************************************
* Name: fts_irq_enable
* Brief: enable irq
* Input:
* Output:
* Return:
*****************************************************************************/
void fts_irq_enable(void)
{
unsigned long irqflags = 0;
FTS_FUNC_ENTER();
spin_lock_irqsave(&fts_data->irq_lock, irqflags);
if (fts_data->irq_disabled) {
enable_irq(fts_data->irq);
fts_data->irq_disabled = false;
}
spin_unlock_irqrestore(&fts_data->irq_lock, irqflags);
FTS_FUNC_EXIT();
}
#if FTS_POWER_SOURCE_CUST_EN
/*****************************************************************************
* Power Control
*****************************************************************************/
static int fts_power_source_init(struct fts_ts_data *data)
{
int ret = 0;
FTS_FUNC_ENTER();
data->vdd = regulator_get(&data->client->dev, "vdd");
if (IS_ERR(data->vdd)) {
ret = PTR_ERR(data->vdd);
FTS_ERROR("get vdd regulator failed,ret=%d", ret);
return ret;
}
if (regulator_count_voltages(data->vdd) > 0) {
ret = regulator_set_voltage(data->vdd, FTS_VTG_MIN_UV, FTS_VTG_MAX_UV);
if (ret) {
FTS_ERROR("vdd regulator set_vtg failed ret=%d", ret);
goto err_set_vtg_vdd;
}
}
data->vcc_i2c = regulator_get(&data->client->dev, "vcc_i2c");
if (IS_ERR(data->vcc_i2c)) {
ret = PTR_ERR(data->vcc_i2c);
FTS_ERROR("ret vcc_i2c regulator failed,ret=%d", ret);
goto err_get_vcc;
}
if (regulator_count_voltages(data->vcc_i2c) > 0) {
ret = regulator_set_voltage(data->vcc_i2c, FTS_I2C_VTG_MIN_UV, FTS_I2C_VTG_MAX_UV);
if (ret) {
FTS_ERROR("vcc_i2c regulator set_vtg failed ret=%d", ret);
goto err_set_vtg_vcc;
}
}
FTS_FUNC_EXIT();
return 0;
err_set_vtg_vcc:
regulator_put(data->vcc_i2c);
err_get_vcc:
if (regulator_count_voltages(data->vdd) > 0)
regulator_set_voltage(data->vdd, 0, FTS_VTG_MAX_UV);
err_set_vtg_vdd:
regulator_put(data->vdd);
FTS_FUNC_EXIT();
return ret;
}
static int fts_power_source_release(struct fts_ts_data *data)
{
if (regulator_count_voltages(data->vdd) > 0)
regulator_set_voltage(data->vdd, 0, FTS_VTG_MAX_UV);
regulator_put(data->vdd);
if (regulator_count_voltages(data->vcc_i2c) > 0)
regulator_set_voltage(data->vcc_i2c, 0, FTS_I2C_VTG_MAX_UV);
regulator_put(data->vcc_i2c);
return 0;
}
static int fts_power_source_ctrl(struct fts_ts_data *data, int enable)
{
int ret = 0;
FTS_FUNC_ENTER();
if (enable) {
if (data->power_disabled) {
FTS_INFO("regulator enabled!");
ret = regulator_enable(data->vdd);
if (ret) {
FTS_ERROR("enable vdd regulator failed,ret=%d", ret);
}
ret = regulator_enable(data->vcc_i2c);
if (ret) {
FTS_ERROR("enable vcc_i2c regulator failed,ret=%d", ret);
}
data->power_disabled = false;
}
} else {
if (!data->power_disabled) {
FTS_INFO("regulator disabled!");
ret = regulator_disable(data->vdd);
if (ret) {
FTS_ERROR("disable vdd regulator failed,ret=%d", ret);
}
ret = regulator_disable(data->vcc_i2c);
if (ret) {
FTS_ERROR("disable vcc_i2c regulator failed,ret=%d", ret);
}
data->power_disabled = true;
}
}
FTS_FUNC_EXIT();
return ret;
}
#if FTS_PINCTRL_EN
/*****************************************************************************
* Name: fts_pinctrl_init
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static int fts_pinctrl_init(struct fts_ts_data *ts)
{
int ret = 0;
struct i2c_client *client = ts->client;
ts->pinctrl = devm_pinctrl_get(&client->dev);
if (IS_ERR_OR_NULL(ts->pinctrl)) {
FTS_ERROR("Failed to get pinctrl, please check dts");
ret = PTR_ERR(ts->pinctrl);
goto err_pinctrl_get;
}
ts->pins_active = pinctrl_lookup_state(ts->pinctrl, "pmx_ts_active");
if (IS_ERR_OR_NULL(ts->pins_active)) {
FTS_ERROR("Pin state[active] not found");
ret = PTR_ERR(ts->pins_active);
goto err_pinctrl_lookup;
}
ts->pins_suspend = pinctrl_lookup_state(ts->pinctrl, "pmx_ts_suspend");
if (IS_ERR_OR_NULL(ts->pins_suspend)) {
FTS_ERROR("Pin state[suspend] not found");
ret = PTR_ERR(ts->pins_suspend);
goto err_pinctrl_lookup;
}
ts->pins_release = pinctrl_lookup_state(ts->pinctrl, "pmx_ts_release");
if (IS_ERR_OR_NULL(ts->pins_release)) {
FTS_ERROR("Pin state[release] not found");
ret = PTR_ERR(ts->pins_release);
}
return 0;
err_pinctrl_lookup:
if (ts->pinctrl) {
devm_pinctrl_put(ts->pinctrl);
}
err_pinctrl_get:
ts->pinctrl = NULL;
ts->pins_release = NULL;
ts->pins_suspend = NULL;
ts->pins_active = NULL;
return ret;
}
static int fts_pinctrl_select_normal(struct fts_ts_data *ts)
{
int ret = 0;
if (ts->pinctrl && ts->pins_active) {
ret = pinctrl_select_state(ts->pinctrl, ts->pins_active);
if (ret < 0) {
FTS_ERROR("Set normal pin state error:%d", ret);
}
}
return ret;
}
static int fts_pinctrl_select_suspend(struct fts_ts_data *ts)
{
int ret = 0;
if (ts->pinctrl && ts->pins_suspend) {
ret = pinctrl_select_state(ts->pinctrl, ts->pins_suspend);
if (ret < 0) {
FTS_ERROR("Set suspend pin state error:%d", ret);
}
}
return ret;
}
static int fts_pinctrl_select_release(struct fts_ts_data *ts)
{
int ret = 0;
if (ts->pinctrl) {
if (IS_ERR_OR_NULL(ts->pins_release)) {
devm_pinctrl_put(ts->pinctrl);
ts->pinctrl = NULL;
} else {
ret = pinctrl_select_state(ts->pinctrl, ts->pins_release);
if (ret < 0)
FTS_ERROR("Set gesture pin state error:%d", ret);
}
}
return ret;
}
#endif /* FTS_PINCTRL_EN */
#endif /* FTS_POWER_SOURCE_CUST_EN */
/*****************************************************************************
* Reprot related
*****************************************************************************/
#if (FTS_DEBUG_EN && (FTS_DEBUG_LEVEL == 2))
char g_sz_debug[1024] = {0};
static void fts_show_touch_buffer(u8 *buf, int point_num)
{
int len = point_num * FTS_ONE_TCH_LEN;
int count = 0;
int i;
memset(g_sz_debug, 0, 1024);
if (len > (fts_data->pnt_buf_size - 3)) {
len = fts_data->pnt_buf_size - 3;
} else if (len == 0) {
len += FTS_ONE_TCH_LEN;
}
count += snprintf(g_sz_debug, PAGE_SIZE, "%02X,%02X,%02X", buf[0], buf[1], buf[2]);
for (i = 0; i < len; i++) {
count += snprintf(g_sz_debug + count, PAGE_SIZE, ",%02X", buf[i + 3]);
}
FTS_DEBUG("buffer: %s", g_sz_debug);
}
#endif
/*****************************************************************************
* Name: fts_release_all_finger
* Brief: report all points' up events, release touch
* Input:
* Output:
* Return:
*****************************************************************************/
static void fts_release_all_finger(void)
{
struct input_dev *input_dev = fts_data->input_dev;
#if FTS_MT_PROTOCOL_B_EN
u32 finger_count = 0;
#endif
FTS_FUNC_ENTER();
mutex_lock(&fts_data->report_mutex);
#if FTS_MT_PROTOCOL_B_EN
for (finger_count = 0; finger_count < fts_data->pdata->max_touch_number; finger_count++) {
input_mt_slot(input_dev, finger_count);
input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, false);
}
#else
input_mt_sync(input_dev);
#endif
input_report_key(input_dev, BTN_TOUCH, 0);
input_sync(input_dev);
mutex_unlock(&fts_data->report_mutex);
FTS_FUNC_EXIT();
}
/************************************************************************
* Name: fts_input_report_key
* Brief: report key event
* Input: events info
* Output:
* Return: return 0 if success
***********************************************************************/
static int fts_input_report_key(struct fts_ts_data *data, int index)
{
u32 ik;
int id = data->events[index].id;
int x = data->events[index].x;
int y = data->events[index].y;
int flag = data->events[index].flag;
u32 key_num = data->pdata->key_number;
if (!KEY_EN(data)) {
return -EINVAL;
}
for (ik = 0; ik < key_num; ik++) {
if (TOUCH_IN_KEY(x, data->pdata->key_x_coords[ik])) {
if (EVENT_DOWN(flag)) {
data->key_down = true;
input_report_key(data->input_dev, data->pdata->keys[ik], 1);
FTS_DEBUG("Key%d(%d, %d) DOWN!", ik, x, y);
} else {
data->key_down = false;
input_report_key(data->input_dev, data->pdata->keys[ik], 0);
FTS_DEBUG("Key%d(%d, %d) Up!", ik, x, y);
}
return 0;
}
}
FTS_ERROR("invalid touch for key, [%d](%d, %d)", id, x, y);
return -EINVAL;
}
#if FTS_MT_PROTOCOL_B_EN
static int fts_input_report_b(struct fts_ts_data *data)
{
int i = 0;
int uppoint = 0;
int touchs = 0;
bool va_reported = false;
u32 max_touch_num = data->pdata->max_touch_number;
u32 key_y_coor = data->pdata->key_y_coord;
struct ts_event *events = data->events;
for (i = 0; i < data->touch_point; i++) {
if (KEY_EN(data) && TOUCH_IS_KEY(events[i].y, key_y_coor)) {
fts_input_report_key(data, i);
continue;
}
if (events[i].id >= max_touch_num)
break;
va_reported = true;
input_mt_slot(data->input_dev, events[i].id);
if (EVENT_DOWN(events[i].flag)) {
input_mt_report_slot_state(data->input_dev, MT_TOOL_FINGER, true);
#if FTS_REPORT_PRESSURE_EN
if (events[i].p <= 0) {
events[i].p = 0x3f;
}
input_report_abs(data->input_dev, ABS_MT_PRESSURE, events[i].p);
#endif
if (events[i].area <= 0) {
events[i].area = 0x09;
}
input_report_abs(data->input_dev, ABS_MT_TOUCH_MAJOR, events[i].area);
input_report_abs(data->input_dev, ABS_X, events[i].x);
input_report_abs(data->input_dev, ABS_Y, events[i].y);
input_report_abs(data->input_dev, ABS_MT_POSITION_X, events[i].x);
input_report_abs(data->input_dev, ABS_MT_POSITION_Y, events[i].y);
touchs |= BIT(events[i].id);
data->touchs |= BIT(events[i].id);
FTS_DEBUG("[B]P%d(%d, %d)[p:%d,tm:%d] DOWN!", events[i].id, events[i].x,
events[i].y, events[i].p, events[i].area);
} else {
uppoint++;
input_mt_report_slot_state(data->input_dev, MT_TOOL_FINGER, false);
data->touchs &= ~BIT(events[i].id);
FTS_DEBUG("[B]P%d UP!", events[i].id);
}
}
if (unlikely(data->touchs ^ touchs)) {
for (i = 0; i < max_touch_num; i++) {
if (BIT(i) & (data->touchs ^ touchs)) {
FTS_DEBUG("[B]P%d UP!", i);
va_reported = true;
input_mt_slot(data->input_dev, i);
input_mt_report_slot_state(data->input_dev, MT_TOOL_FINGER, false);
}
}
}
data->touchs = touchs;
if (va_reported) {
/* touchs==0, there's no point but key */
if (EVENT_NO_DOWN(data) || (!touchs)) {
FTS_DEBUG("[B]Points All Up!");
input_report_key(data->input_dev, BTN_TOUCH, 0);
} else {
input_report_key(data->input_dev, BTN_TOUCH, 1);
}
}
input_sync(data->input_dev);
return 0;
}
#else
static int fts_input_report_a(struct fts_ts_data *data)
{
int i = 0;
int touchs = 0;
bool va_reported = false;
u32 key_y_coor = data->pdata->key_y_coord;
struct ts_event *events = data->events;
for (i = 0; i < data->touch_point; i++) {
if (KEY_EN(data) && TOUCH_IS_KEY(events[i].y, key_y_coor)) {
fts_input_report_key(data, i);
continue;
}
va_reported = true;
if (EVENT_DOWN(events[i].flag)) {
input_report_abs(data->input_dev, ABS_MT_TRACKING_ID, events[i].id);
#if FTS_REPORT_PRESSURE_EN
if (events[i].p <= 0) {
events[i].p = 0x3f;
}
input_report_abs(data->input_dev, ABS_MT_PRESSURE, events[i].p);
#endif
if (events[i].area <= 0) {
events[i].area = 0x09;
}
input_report_abs(data->input_dev, ABS_MT_TOUCH_MAJOR, events[i].area);
input_report_abs(data->input_dev, ABS_X, events[i].x);
input_report_abs(data->input_dev, ABS_Y, events[i].y);
input_report_abs(data->input_dev, ABS_MT_POSITION_X, events[i].x);
input_report_abs(data->input_dev, ABS_MT_POSITION_Y, events[i].y);
input_mt_sync(data->input_dev);
FTS_DEBUG("[A]P%d(%d, %d)[p:%d,tm:%d] DOWN!", events[i].id, events[i].x,
events[i].y, events[i].p, events[i].area);
touchs++;
}
}
/* last point down, current no point but key */
if (data->touchs && !touchs) {
va_reported = true;
}
data->touchs = touchs;
if (va_reported) {
if (EVENT_NO_DOWN(data)) {
FTS_DEBUG("[A]Points All Up!");
input_report_key(data->input_dev, BTN_TOUCH, 0);
input_mt_sync(data->input_dev);
} else {
input_report_key(data->input_dev, BTN_TOUCH, 1);
}
}
input_sync(data->input_dev);
return 0;
}
#endif
/*****************************************************************************
* Name: fts_read_touchdata
* Brief:
* Input:
* Output:
* Return: return 0 if succuss
*****************************************************************************/
static int fts_read_touchdata(struct fts_ts_data *data)
{
int ret = 0;
int i = 0;
u8 pointid;
int base;
struct ts_event *events = data->events;
int max_touch_num = data->pdata->max_touch_number;
u8 *buf = data->point_buf;
struct i2c_client *client = data->client;
#if FTS_GESTURE_EN
if (0 == fts_gesture_readdata(data)) {
FTS_INFO("succuss to get gesture data in irq handler");
return 1;
}
#endif
#if FTS_POINT_REPORT_CHECK_EN
fts_prc_queue_work(data);
#endif
data->point_num = 0;
data->touch_point = 0;
memset(buf, 0xFF, data->pnt_buf_size);
buf[0] = 0x00;
ret = fts_i2c_read(data->client, buf, 1, buf, data->pnt_buf_size);
if (ret < 0) {
FTS_ERROR("read touchdata failed, ret:%d", ret);
return ret;
}
data->point_num = buf[FTS_TOUCH_POINT_NUM] & 0x0F;
if (data->ic_info.is_incell) {
if ((data->point_num == 0x0F) && (buf[1] == 0xFF) && (buf[2] == 0xFF)
&& (buf[3] == 0xFF) && (buf[4] == 0xFF) && (buf[5] == 0xFF) && (buf[6] == 0xFF)) {
FTS_INFO("touch buff is 0xff, need recovery state");
fts_tp_state_recovery(client);
return -EIO;
}
}
if (data->point_num > max_touch_num) {
FTS_INFO("invalid point_num(%d)", data->point_num);
return -EIO;
}
#if (FTS_DEBUG_EN && (FTS_DEBUG_LEVEL == 2))
fts_show_touch_buffer(buf, data->point_num);
#endif
for (i = 0; i < max_touch_num; i++) {
base = FTS_ONE_TCH_LEN * i;
pointid = (buf[FTS_TOUCH_ID_POS + base]) >> 4;
if (pointid >= FTS_MAX_ID)
break;
else if (pointid >= max_touch_num) {
FTS_ERROR("ID(%d) beyond max_touch_number", pointid);
return -EINVAL;
}
data->touch_point++;
events[i].x = ((buf[FTS_TOUCH_X_H_POS + base] & 0x0F) << 8) +
(buf[FTS_TOUCH_X_L_POS + base] & 0xFF);
events[i].y = ((buf[FTS_TOUCH_Y_H_POS + base] & 0x0F) << 8) +
(buf[FTS_TOUCH_Y_L_POS + base] & 0xFF);
events[i].flag = buf[FTS_TOUCH_EVENT_POS + base] >> 6;
events[i].id = buf[FTS_TOUCH_ID_POS + base] >> 4;
events[i].area = buf[FTS_TOUCH_AREA_POS + base] >> 4;
events[i].p = buf[FTS_TOUCH_PRE_POS + base];
if (EVENT_DOWN(events[i].flag) && (data->point_num == 0)) {
FTS_INFO("abnormal touch data from fw");
return -EIO;
}
}
if (data->touch_point == 0) {
FTS_INFO("no touch point information");
return -EIO;
}
return 0;
}
/*****************************************************************************
* Name: fts_report_event
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static void fts_report_event(struct fts_ts_data *data)
{
#if FTS_MT_PROTOCOL_B_EN
fts_input_report_b(data);
#else
fts_input_report_a(data);
#endif
}
/*****************************************************************************
* Name: fts_ts_interrupt
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static irqreturn_t fts_ts_interrupt(int irq, void *data)
{
int ret = 0;
struct fts_ts_data *ts_data = (struct fts_ts_data *)data;
if (!ts_data) {
FTS_ERROR("[INTR]: Invalid fts_ts_data");
return IRQ_HANDLED;
}
#if FTS_ESDCHECK_EN
fts_esdcheck_set_intr(1);
#endif
ret = fts_read_touchdata(ts_data);
if (ret == 0) {
mutex_lock(&ts_data->report_mutex);
fts_report_event(ts_data);
mutex_unlock(&ts_data->report_mutex);
}
#if FTS_ESDCHECK_EN
fts_esdcheck_set_intr(0);
#endif
return IRQ_HANDLED;
}
/*****************************************************************************
* Name: fts_irq_registration
* Brief:
* Input:
* Output:
* Return: return 0 if succuss, otherwise return error code
*****************************************************************************/
static int fts_irq_registration(struct fts_ts_data *ts_data)
{
int ret = 0;
struct fts_ts_platform_data *pdata = ts_data->pdata;
ts_data->irq = gpio_to_irq(pdata->irq_gpio);
FTS_INFO("irq in ts_data:%d irq in client:%d", ts_data->irq, ts_data->client->irq);
if (ts_data->irq != ts_data->client->irq)
FTS_ERROR("IRQs are inconsistent, please check <interrupts> & <focaltech,irq-gpio> in DTS");
if (0 == pdata->irq_gpio_flags)
pdata->irq_gpio_flags = IRQF_TRIGGER_FALLING;
FTS_INFO("irq flag:%x", pdata->irq_gpio_flags);
ret = request_threaded_irq(ts_data->irq, NULL, fts_ts_interrupt,
pdata->irq_gpio_flags | IRQF_ONESHOT,
ts_data->client->name, ts_data);
return ret;
}
/*****************************************************************************
* Name: fts_input_init
* Brief: input device init
* Input:
* Output:
* Return:
*****************************************************************************/
static int fts_input_init(struct fts_ts_data *ts_data)
{
int ret = 0;
int key_num = 0;
struct fts_ts_platform_data *pdata = ts_data->pdata;
struct input_dev *input_dev;
int point_num;
FTS_FUNC_ENTER();
input_dev = input_allocate_device();
if (!input_dev) {
FTS_ERROR("Failed to allocate memory for input device");
return -ENOMEM;
}
/* Init and register Input device */
input_dev->name = FTS_DRIVER_NAME;
input_dev->id.bustype = BUS_I2C;
input_dev->dev.parent = &ts_data->client->dev;
input_set_drvdata(input_dev, ts_data);
__set_bit(EV_SYN, input_dev->evbit);
__set_bit(EV_ABS, input_dev->evbit);
__set_bit(EV_KEY, input_dev->evbit);
__set_bit(BTN_TOUCH, input_dev->keybit);
__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
if (pdata->have_key) {
FTS_INFO("set key capabilities");
for (key_num = 0; key_num < pdata->key_number; key_num++)
input_set_capability(input_dev, EV_KEY, pdata->keys[key_num]);
}
#if FTS_MT_PROTOCOL_B_EN
input_mt_init_slots(input_dev, pdata->max_touch_number, INPUT_MT_DIRECT);
#else
input_set_abs_params(input_dev, ABS_MT_TRACKING_ID, 0, 0x0f, 0, 0);
#endif
input_set_abs_params(input_dev, ABS_X, pdata->x_min, pdata->x_max, 0, 0);
input_set_abs_params(input_dev, ABS_Y, pdata->y_min, pdata->y_max, 0, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_X, pdata->x_min, pdata->x_max, 0, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_Y, pdata->y_min, pdata->y_max, 0, 0);
input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, 0xFF, 0, 0);
#if FTS_REPORT_PRESSURE_EN
input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 0xFF, 0, 0);
#endif
point_num = pdata->max_touch_number;
ts_data->pnt_buf_size = point_num * FTS_ONE_TCH_LEN + 3;
ts_data->point_buf = (u8 *)kzalloc(ts_data->pnt_buf_size, GFP_KERNEL);
if (!ts_data->point_buf) {
FTS_ERROR("failed to alloc memory for point buf!");
ret = -ENOMEM;
goto err_point_buf;
}
ts_data->events = (struct ts_event *)kzalloc(point_num * sizeof(struct ts_event), GFP_KERNEL);
if (!ts_data->events) {
FTS_ERROR("failed to alloc memory for point events!");
ret = -ENOMEM;
goto err_event_buf;
}
ret = input_register_device(input_dev);
if (ret) {
FTS_ERROR("Input device registration failed");
goto err_input_reg;
}
ts_data->input_dev = input_dev;
FTS_FUNC_EXIT();
return 0;
err_input_reg:
kfree_safe(ts_data->events);
err_event_buf:
kfree_safe(ts_data->point_buf);
err_point_buf:
input_set_drvdata(input_dev, NULL);
input_free_device(input_dev);
input_dev = NULL;
FTS_FUNC_EXIT();
return ret;
}
/*****************************************************************************
* Name: fts_gpio_configure
* Brief: Configure IRQ&RESET GPIO
* Input:
* Output:
* Return: return 0 if succuss
*****************************************************************************/
static int fts_gpio_configure(struct fts_ts_data *data)
{
int ret = 0;
FTS_FUNC_ENTER();
/* request irq gpio */
if (gpio_is_valid(data->pdata->irq_gpio)) {
ret = gpio_request(data->pdata->irq_gpio, "fts_irq_gpio");
if (ret) {
FTS_ERROR("[GPIO]irq gpio request failed");
goto err_irq_gpio_req;
}
ret = gpio_direction_input(data->pdata->irq_gpio);
if (ret) {
FTS_ERROR("[GPIO]set_direction for irq gpio failed");
goto err_irq_gpio_dir;
}
}
/* request reset gpio */
if (gpio_is_valid(data->pdata->reset_gpio)) {
ret = gpio_request(data->pdata->reset_gpio, "fts_reset_gpio");
if (ret) {
FTS_ERROR("[GPIO]reset gpio request failed");
goto err_irq_gpio_dir;
}
ret = gpio_direction_output(data->pdata->reset_gpio, 1);
if (ret) {
FTS_ERROR("[GPIO]set_direction for reset gpio failed");
goto err_reset_gpio_dir;
}
}
FTS_FUNC_EXIT();
return 0;
err_reset_gpio_dir:
if (gpio_is_valid(data->pdata->reset_gpio))
gpio_free(data->pdata->reset_gpio);
err_irq_gpio_dir:
if (gpio_is_valid(data->pdata->irq_gpio))
gpio_free(data->pdata->irq_gpio);
err_irq_gpio_req:
FTS_FUNC_EXIT();
return ret;
}
/*****************************************************************************
* Name: fts_get_dt_coords
* Brief:
* Input:
* Output:
* Return: return 0 if succuss, otherwise return error code
*****************************************************************************/
static int fts_get_dt_coords(struct device *dev, char *name,
struct fts_ts_platform_data *pdata)
{
int ret = 0;
u32 coords[FTS_COORDS_ARR_SIZE] = { 0 };
struct property *prop;
struct device_node *np = dev->of_node;
int coords_size;
prop = of_find_property(np, name, NULL);
if (!prop)
return -EINVAL;
if (!prop->value)
return -ENODATA;
coords_size = prop->length / sizeof(u32);
if (coords_size != FTS_COORDS_ARR_SIZE) {
FTS_ERROR("invalid:%s, size:%d", name, coords_size);
return -EINVAL;
}
ret = of_property_read_u32_array(np, name, coords, coords_size);
if (ret && (ret != -EINVAL)) {
FTS_ERROR("Unable to read %s", name);
return -ENODATA;
}
if (!strcmp(name, "focaltech,display-coords")) {
pdata->x_min = coords[0];
pdata->y_min = coords[1];
pdata->x_max = coords[2];
pdata->y_max = coords[3];
} else {
FTS_ERROR("unsupported property %s", name);
return -EINVAL;
}
FTS_INFO("display x(%d %d) y(%d %d)", pdata->x_min, pdata->x_max,
pdata->y_min, pdata->y_max);
return 0;
}
/*****************************************************************************
* Name: fts_parse_dt
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static int fts_parse_dt(struct device *dev, struct fts_ts_platform_data *pdata)
{
int ret = 0;
struct device_node *np = dev->of_node;
u32 temp_val;
FTS_FUNC_ENTER();
ret = fts_get_dt_coords(dev, "focaltech,display-coords", pdata);
if (ret < 0)
FTS_ERROR("Unable to get display-coords");
/* key */
pdata->have_key = of_property_read_bool(np, "focaltech,have-key");
if (pdata->have_key) {
ret = of_property_read_u32(np, "focaltech,key-number", &pdata->key_number);
if (ret)
FTS_ERROR("Key number undefined!");
ret = of_property_read_u32_array(np, "focaltech,keys",
pdata->keys, pdata->key_number);
if (ret)
FTS_ERROR("Keys undefined!");
else if (pdata->key_number > FTS_MAX_KEYS)
pdata->key_number = FTS_MAX_KEYS;
ret = of_property_read_u32(np, "focaltech,key-y-coord", &pdata->key_y_coord);
if (ret)
FTS_ERROR("Key Y Coord undefined!");
ret = of_property_read_u32_array(np, "focaltech,key-x-coords",
pdata->key_x_coords, pdata->key_number);
if (ret)
FTS_ERROR("Key X Coords undefined!");
FTS_INFO("VK(%d): (%d, %d, %d), [%d, %d, %d][%d]",
pdata->key_number, pdata->keys[0], pdata->keys[1], pdata->keys[2],
pdata->key_x_coords[0], pdata->key_x_coords[1], pdata->key_x_coords[2],
pdata->key_y_coord);
}
/* reset, irq gpio info */
pdata->reset_gpio = of_get_named_gpio_flags(np, "focaltech,reset-gpio", 0, &pdata->reset_gpio_flags);
if (pdata->reset_gpio < 0)
FTS_ERROR("Unable to get reset_gpio");
pdata->irq_gpio = of_get_named_gpio_flags(np, "focaltech,irq-gpio", 0, &pdata->irq_gpio_flags);
if (pdata->irq_gpio < 0)
FTS_ERROR("Unable to get irq_gpio");
ret = of_property_read_u32(np, "focaltech,max-touch-number", &temp_val);
if (0 == ret) {
if (temp_val < 2)
pdata->max_touch_number = 2;
else if (temp_val > FTS_MAX_POINTS_SUPPORT)
pdata->max_touch_number = FTS_MAX_POINTS_SUPPORT;
else
pdata->max_touch_number = temp_val;
} else {
FTS_ERROR("Unable to get max-touch-number");
pdata->max_touch_number = FTS_MAX_POINTS_SUPPORT;
}
FTS_INFO("max touch number:%d, irq gpio:%d, reset gpio:%d",
pdata->max_touch_number, pdata->irq_gpio, pdata->reset_gpio);
FTS_FUNC_EXIT();
return 0;
}
#if defined(CONFIG_FB)
/*****************************************************************************
* Name: fb_notifier_callback
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static int fb_notifier_callback(struct notifier_block *self,
unsigned long event, void *data)
{
struct fb_event *evdata = data;
int *blank;
struct fts_ts_data *fts_data =
container_of(self, struct fts_ts_data, fb_notif);
if (evdata && evdata->data && event == FB_EVENT_BLANK &&
fts_data && fts_data->client) {
blank = evdata->data;
if (*blank == FB_BLANK_UNBLANK)
fts_ts_resume(&fts_data->client->dev);
else if (*blank == FB_BLANK_POWERDOWN)
fts_ts_suspend(&fts_data->client->dev);
}
return 0;
}
#elif defined(CONFIG_HAS_EARLYSUSPEND)
/*****************************************************************************
* Name: fts_ts_early_suspend
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static void fts_ts_early_suspend(struct early_suspend *handler)
{
struct fts_ts_data *data = container_of(handler,
struct fts_ts_data,
early_suspend);
fts_ts_suspend(&data->client->dev);
}
/*****************************************************************************
* Name: fts_ts_late_resume
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static void fts_ts_late_resume(struct early_suspend *handler)
{
struct fts_ts_data *data = container_of(handler,
struct fts_ts_data,
early_suspend);
fts_ts_resume(&data->client->dev);
}
#endif
/*****************************************************************************
* Name: fts_ts_probe
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static int fts_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
int ret = 0;
struct fts_ts_platform_data *pdata;
struct fts_ts_data *ts_data;
FTS_FUNC_ENTER();
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
FTS_ERROR("I2C not supported");
return -ENODEV;
}
if (client->dev.of_node) {
pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata) {
FTS_ERROR("Failed to allocate memory for platform data");
return -ENOMEM;
}
ret = fts_parse_dt(&client->dev, pdata);
if (ret)
FTS_ERROR("[DTS]DT parsing failed");
} else {
pdata = client->dev.platform_data;
}
if (!pdata) {
FTS_ERROR("no ts platform data found");
return -EINVAL;
}
ts_data = devm_kzalloc(&client->dev, sizeof(*ts_data), GFP_KERNEL);
if (!ts_data) {
FTS_ERROR("Failed to allocate memory for fts_data");
return -ENOMEM;
}
fts_data = ts_data;
ts_data->client = client;
ts_data->pdata = pdata;
i2c_set_clientdata(client, ts_data);
ts_data->ts_workqueue = create_singlethread_workqueue("fts_wq");
if (NULL == ts_data->ts_workqueue) {
FTS_ERROR("failed to create fts workqueue");
}
spin_lock_init(&ts_data->irq_lock);
mutex_init(&ts_data->report_mutex);
ret = fts_input_init(ts_data);
if (ret) {
FTS_ERROR("fts input initialize fail");
goto err_input_init;
}
#if FTS_POWER_SOURCE_CUST_EN
ret = fts_power_source_init(ts_data);
if (ret) {
FTS_ERROR("fail to get vdd/vcc_i2c regulator");
goto err_power_init;
}
ts_data->power_disabled = true;
ret = fts_power_source_ctrl(ts_data, ENABLE);
if (ret) {
FTS_ERROR("fail to enable vdd/vcc_i2c regulator");
goto err_power_ctrl;
}
#if FTS_PINCTRL_EN
ret = fts_pinctrl_init(ts_data);
if (0 == ret) {
fts_pinctrl_select_normal(ts_data);
}
#endif
#endif
ret = fts_gpio_configure(ts_data);
if (ret) {
FTS_ERROR("[GPIO]Failed to configure the gpios");
goto err_gpio_config;
}
#if (!FTS_CHIP_IDC)
fts_reset_proc(200);
#endif
ret = fts_get_ic_information(ts_data);
if (ret) {
FTS_ERROR("not focal IC, unregister driver");
goto err_irq_req;
}
#if FTS_APK_NODE_EN
ret = fts_create_apk_debug_channel(ts_data);
if (ret) {
FTS_ERROR("create apk debug node fail");
}
#endif
#if FTS_SYSFS_NODE_EN
ret = fts_create_sysfs(client);
if (ret) {
FTS_ERROR("create sysfs node fail");
}
#endif
#if FTS_POINT_REPORT_CHECK_EN
ret = fts_point_report_check_init(ts_data);
if (ret) {
FTS_ERROR("init point report check fail");
}
#endif
ret = fts_ex_mode_init(client);
if (ret) {
FTS_ERROR("init glove/cover/charger fail");
}
#if FTS_GESTURE_EN
ret = fts_gesture_init(ts_data);
if (ret) {
FTS_ERROR("init gesture fail");
}
#endif
#if FTS_TEST_EN
ret = fts_test_init(client);
if (ret) {
FTS_ERROR("init production test fail");
}
#endif
#if FTS_ESDCHECK_EN
ret = fts_esdcheck_init(ts_data);
if (ret) {
FTS_ERROR("init esd check fail");
}
#endif
ret = fts_irq_registration(ts_data);
if (ret) {
FTS_ERROR("request irq failed");
goto err_irq_req;
}
#if FTS_AUTO_UPGRADE_EN
ret = fts_fwupg_init(ts_data);
if (ret) {
FTS_ERROR("init fw upgrade fail");
}
#endif
#if defined(CONFIG_FB)
ts_data->fb_notif.notifier_call = fb_notifier_callback;
ret = fb_register_client(&ts_data->fb_notif);
if (ret) {
FTS_ERROR("[FB]Unable to register fb_notifier: %d", ret);
}
#elif defined(CONFIG_HAS_EARLYSUSPEND)
ts_data->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + FTS_SUSPEND_LEVEL;
ts_data->early_suspend.suspend = fts_ts_early_suspend;
ts_data->early_suspend.resume = fts_ts_late_resume;
register_early_suspend(&ts_data->early_suspend);
#endif
FTS_FUNC_EXIT();
return 0;
err_irq_req:
if (gpio_is_valid(pdata->reset_gpio))
gpio_free(pdata->reset_gpio);
if (gpio_is_valid(pdata->irq_gpio))
gpio_free(pdata->irq_gpio);
err_gpio_config:
#if FTS_POWER_SOURCE_CUST_EN
#if FTS_PINCTRL_EN
fts_pinctrl_select_release(ts_data);
#endif
fts_power_source_ctrl(ts_data, DISABLE);
err_power_ctrl:
fts_power_source_release(ts_data);
err_power_init:
#endif
kfree_safe(ts_data->point_buf);
kfree_safe(ts_data->events);
input_unregister_device(ts_data->input_dev);
err_input_init:
if (ts_data->ts_workqueue)
destroy_workqueue(ts_data->ts_workqueue);
devm_kfree(&client->dev, ts_data);
FTS_FUNC_EXIT();
return ret;
}
/*****************************************************************************
* Name: fts_ts_remove
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static int fts_ts_remove(struct i2c_client *client)
{
struct fts_ts_data *ts_data = i2c_get_clientdata(client);
FTS_FUNC_ENTER();
#if FTS_POINT_REPORT_CHECK_EN
fts_point_report_check_exit(ts_data);
#endif
#if FTS_APK_NODE_EN
fts_release_apk_debug_channel(ts_data);
#endif
#if FTS_SYSFS_NODE_EN
fts_remove_sysfs(client);
#endif
fts_ex_mode_exit(client);
#if FTS_AUTO_UPGRADE_EN
fts_fwupg_exit(ts_data);
#endif
#if FTS_TEST_EN
fts_test_exit(client);
#endif
#if FTS_ESDCHECK_EN
fts_esdcheck_exit(ts_data);
#endif
#if FTS_GESTURE_EN
fts_gesture_exit(client);
#endif
#if defined(CONFIG_FB)
if (fb_unregister_client(&ts_data->fb_notif))
FTS_ERROR("Error occurred while unregistering fb_notifier.");
#elif defined(CONFIG_HAS_EARLYSUSPEND)
unregister_early_suspend(&ts_data->early_suspend);
#endif
free_irq(ts_data->irq, ts_data);
input_unregister_device(ts_data->input_dev);
if (gpio_is_valid(ts_data->pdata->reset_gpio))
gpio_free(ts_data->pdata->reset_gpio);
if (gpio_is_valid(ts_data->pdata->irq_gpio))
gpio_free(ts_data->pdata->irq_gpio);
if (ts_data->ts_workqueue)
destroy_workqueue(ts_data->ts_workqueue);
#if FTS_POWER_SOURCE_CUST_EN
#if FTS_PINCTRL_EN
fts_pinctrl_select_release(ts_data);
#endif
fts_power_source_ctrl(ts_data, DISABLE);
fts_power_source_release(ts_data);
#endif
kfree_safe(ts_data->point_buf);
kfree_safe(ts_data->events);
devm_kfree(&client->dev, ts_data);
FTS_FUNC_EXIT();
return 0;
}
/*****************************************************************************
* Name: fts_ts_suspend
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static int fts_ts_suspend(struct device *dev)
{
int ret = 0;
struct fts_ts_data *ts_data = dev_get_drvdata(dev);
FTS_FUNC_ENTER();
if (ts_data->suspended) {
FTS_INFO("Already in suspend state");
return 0;
}
if (ts_data->fw_loading) {
FTS_INFO("fw upgrade in process, can't suspend");
return 0;
}
#if FTS_ESDCHECK_EN
fts_esdcheck_suspend();
#endif
#if FTS_GESTURE_EN
if (fts_gesture_suspend(ts_data->client) == 0) {
ts_data->suspended = true;
return 0;
}
#endif
fts_irq_disable();
#if FTS_POWER_SOURCE_CUST_EN
ret = fts_power_source_ctrl(ts_data, DISABLE);
if (ret < 0) {
FTS_ERROR("power off fail, ret=%d", ret);
}
#if FTS_PINCTRL_EN
fts_pinctrl_select_suspend(ts_data);
#endif
#else
/* TP enter sleep mode */
ret = fts_i2c_write_reg(ts_data->client, FTS_REG_POWER_MODE, FTS_REG_POWER_MODE_SLEEP_VALUE);
if (ret < 0)
FTS_ERROR("set TP to sleep mode fail, ret=%d", ret);
#endif
ts_data->suspended = true;
FTS_FUNC_EXIT();
return 0;
}
/*****************************************************************************
* Name: fts_ts_resume
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static int fts_ts_resume(struct device *dev)
{
struct fts_ts_data *ts_data = dev_get_drvdata(dev);
FTS_FUNC_ENTER();
if (!ts_data->suspended) {
FTS_DEBUG("Already in awake state");
return 0;
}
fts_release_all_finger();
#if FTS_POWER_SOURCE_CUST_EN
fts_power_source_ctrl(ts_data, ENABLE);
#if FTS_PINCTRL_EN
fts_pinctrl_select_normal(ts_data);
#endif
#endif
if (!ts_data->ic_info.is_incell) {
fts_reset_proc(200);
}
fts_tp_state_recovery(ts_data->client);
#if FTS_ESDCHECK_EN
fts_esdcheck_resume();
#endif
#if FTS_GESTURE_EN
if (fts_gesture_resume(ts_data->client) == 0) {
ts_data->suspended = false;
return 0;
}
#endif
ts_data->suspended = false;
fts_irq_enable();
FTS_FUNC_EXIT();
return 0;
}
/*****************************************************************************
* I2C Driver
*****************************************************************************/
static const struct i2c_device_id fts_ts_id[] = {
{FTS_DRIVER_NAME, 0},
{},
};
MODULE_DEVICE_TABLE(i2c, fts_ts_id);
static struct of_device_id fts_match_table[] = {
{ .compatible = "focaltech,fts", },
{ },
};
static struct i2c_driver fts_ts_driver = {
.probe = fts_ts_probe,
.remove = fts_ts_remove,
.driver = {
.name = FTS_DRIVER_NAME,
.owner = THIS_MODULE,
.of_match_table = fts_match_table,
},
.id_table = fts_ts_id,
};
/*****************************************************************************
* Name: fts_ts_init
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static int __init fts_ts_init(void)
{
int ret = 0;
FTS_FUNC_ENTER();
ret = i2c_add_driver(&fts_ts_driver);
if ( ret != 0 ) {
FTS_ERROR("Focaltech touch screen driver init failed!");
}
FTS_FUNC_EXIT();
return ret;
}
/*****************************************************************************
* Name: fts_ts_exit
* Brief:
* Input:
* Output:
* Return:
*****************************************************************************/
static void __exit fts_ts_exit(void)
{
i2c_del_driver(&fts_ts_driver);
}
module_init(fts_ts_init);
module_exit(fts_ts_exit);
MODULE_AUTHOR("FocalTech Driver Team");
MODULE_DESCRIPTION("FocalTech Touchscreen Driver");
MODULE_LICENSE("GPL v2");