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SmartAudio/lichee/linux-4.9/drivers/input/touchscreen/gt9xx/gt9xx.c

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/* drivers/input/touchscreen/gt9xx.c
*
* 2010 - 2012 Goodix Technology.
*
* 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 a reference
* to you, when you are integrating the GOODiX's CTP IC into your system,
* 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.
*
* Version:1.4
* Author:andrew@goodix.com
* Release Date:2012/12/12
* Revision record:
* V1.0:2012/08/31,first Release
* V1.2:2012/10/15,modify gtp_reset_guitar,slot report,tracking_id & 0x0F
* V1.4:2012/12/12,modify gt9xx_update.c
*
*/
#include <linux/irq.h>
#include "gt9xx_ts.h"
#include <linux/pm.h>
#if GTP_ICS_SLOT_REPORT
#include <linux/input/mt.h>
#endif
static const char *goodix_ts_name = "gt9xx";
static struct workqueue_struct *goodix_wq;
struct i2c_client * i2c_connect_client = NULL;
static u8 config[GTP_CONFIG_MAX_LENGTH + GTP_ADDR_LENGTH]
= {GTP_REG_CONFIG_DATA >> 8, GTP_REG_CONFIG_DATA & 0xff};
#if GTP_HAVE_TOUCH_KEY
static const u16 touch_key_array[] = GTP_KEY_TAB;
#define GTP_MAX_KEY_NUM (sizeof(touch_key_array)/sizeof(touch_key_array[0]))
#endif
static s8 gtp_i2c_test(struct i2c_client *client);
void gtp_reset_guitar(struct i2c_client *client, s32 ms);
void gtp_int_sync(s32 ms);
#ifdef CONFIG_HAS_EARLYSUSPEND
static void goodix_ts_early_suspend(struct early_suspend *h);
static void goodix_ts_late_resume(struct early_suspend *h);
#endif
#if GTP_CREATE_WR_NODE
extern s32 init_wr_node(struct i2c_client*);
extern void uninit_wr_node(void);
#endif
#if GTP_AUTO_UPDATE
extern u8 gup_init_update_proc(struct goodix_ts_data *);
#endif
#if GTP_ESD_PROTECT
static struct delayed_work gtp_esd_check_work;
static struct workqueue_struct * gtp_esd_check_workqueue = NULL;
static void gtp_esd_check_func(struct work_struct *);
s32 gtp_init_ext_watchdog(struct i2c_client *client);
#endif
///////////////////////////////////////////////
//specific tp related macro: need be configured for specific tp
#define CTP_IRQ_NUMBER (config_info.int_number)
#define CTP_IRQ_MODE (IRQF_TRIGGER_FALLING)
#define CTP_NAME ("gt9xx_ts")
#define SCREEN_MAX_X (screen_max_x)
#define SCREEN_MAX_Y (screen_max_y)
#define PRESS_MAX (255)
static int screen_max_x = 0;
static int screen_max_y = 0;
static int revert_x_flag = 0;
static int revert_y_flag = 0;
static int exchange_x_y_flag = 0;
static __u32 twi_id = 0;
static char irq_pin_name[8];
static u32 debug_mask = 0;
enum{
DEBUG_INIT = 1U << 0,
DEBUG_SUSPEND = 1U << 1,
DEBUG_INT_INFO = 1U << 2,
DEBUG_X_Y_INFO = 1U << 3,
DEBUG_KEY_INFO = 1U << 4,
DEBUG_WAKEUP_INFO = 1U << 5,
DEBUG_OTHERS_INFO = 1U << 6,
};
#define dprintk(level_mask,fmt,arg...) if(unlikely(debug_mask & level_mask)) \
printk("***CTP***"fmt, ## arg)
module_param_named(debug_mask,debug_mask,int,S_IRUGO | S_IWUSR | S_IWGRP);
static const unsigned short normal_i2c[3] = {0x14, 0x5d, I2C_CLIENT_END};
//static const int chip_id_value[3] = {57};
//static uint8_t read_chip_value[3] = {GTP_REG_VERSION >> 8, GTP_REG_VERSION & 0xff,0};
struct ctp_config_info config_info = {
.input_type = CTP_TYPE,
.name = NULL,
.int_number = 0,
};
//static void goodix_init_events(struct work_struct *work);
static void goodix_resume_events(struct work_struct *work);
static struct workqueue_struct *goodix_wq;
//static struct workqueue_struct *goodix_init_wq;
static struct workqueue_struct *goodix_resume_wq;
//static DECLARE_WORK(goodix_init_work, goodix_init_events);
static DECLARE_WORK(goodix_resume_work, goodix_resume_events);
/**
* ctp_detect - Device detection callback for automatic device creation
* return value:
* = 0; success;
* < 0; err
*/
static int ctp_detect(struct i2c_client *client, struct i2c_board_info *info)
{
struct i2c_adapter *adapter = client->adapter;
int ret = -1;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)){
printk("======return=====\n");
return -ENODEV;
}
if(twi_id == adapter->nr){
dprintk(DEBUG_INIT,"%s: addr = %x\n", __func__, client->addr);
ret = gtp_i2c_test(client);
printk("detect ret %d\n",ret);
if(!ret){
printk("%s:I2C connection might be something wrong \n", __func__);
return -ENODEV;
}else{
strlcpy(info->type, CTP_NAME, I2C_NAME_SIZE);
printk("======detect ok !=====\n");
return 0;
}
}else{
return -ENODEV;
}
}
/**
* ctp_print_info - sysconfig print function
* return value:
*
*/
void ctp_print_info(struct ctp_config_info info,int debug_level)
{
if(debug_level == DEBUG_INIT)
{
dprintk(DEBUG_INIT,"info.ctp_used:%d\n",info.ctp_used);
dprintk(DEBUG_INIT,"info.twi_id:%d\n",info.twi_id);
dprintk(DEBUG_INIT,"info.screen_max_x:%d\n",info.screen_max_x);
dprintk(DEBUG_INIT,"info.screen_max_y:%d\n",info.screen_max_y);
dprintk(DEBUG_INIT,"info.revert_x_flag:%d\n",info.revert_x_flag);
dprintk(DEBUG_INIT,"info.revert_y_flag:%d\n",info.revert_y_flag);
dprintk(DEBUG_INIT,"info.exchange_x_y_flag:%d\n",info.exchange_x_y_flag);
dprintk(DEBUG_INIT,"info.irq_gpio_number:%d\n",info.irq_gpio.gpio);
dprintk(DEBUG_INIT,"info.wakeup_gpio_number:%d\n",info.wakeup_gpio.gpio);
}
}
/**
* ctp_wakeup - function
*
*/
int ctp_wakeup(int status,int ms)
{
dprintk(DEBUG_INIT,"***CTP*** %s:status:%d,ms = %d\n",__func__,status,ms);
if (status == 0) {
if(ms == 0) {
__gpio_set_value(config_info.wakeup_gpio.gpio, 0);
}else {
__gpio_set_value(config_info.wakeup_gpio.gpio, 0);
msleep(ms);
__gpio_set_value(config_info.wakeup_gpio.gpio, 1);
}
}
if (status == 1) {
if(ms == 0) {
__gpio_set_value(config_info.wakeup_gpio.gpio, 1);
}else {
__gpio_set_value(config_info.wakeup_gpio.gpio, 1);
msleep(ms);
__gpio_set_value(config_info.wakeup_gpio.gpio, 0);
}
}
msleep(5);
return 0;
}
void gtp_set_int_value(int status)
{
long unsigned int config;
config = SUNXI_PINCFG_PACK(SUNXI_PINCFG_TYPE_FUNC,0xFFFF);
pin_config_get(SUNXI_PINCTRL,irq_pin_name,&config);
if (1 != SUNXI_PINCFG_UNPACK_VALUE(config)){
config = SUNXI_PINCFG_PACK(SUNXI_PINCFG_TYPE_FUNC,1);
pin_config_set(SUNXI_PINCTRL,irq_pin_name,config);;
}
__gpio_set_value(CTP_IRQ_NUMBER, status);
}
void gtp_set_io_int(void)
{
long unsigned int config;
config = SUNXI_PINCFG_PACK(SUNXI_PINCFG_TYPE_FUNC,0xFFFF);
pin_config_get(SUNXI_PINCTRL,irq_pin_name,&config);
if (4 != SUNXI_PINCFG_UNPACK_VALUE(config)){
config = SUNXI_PINCFG_PACK(SUNXI_PINCFG_TYPE_FUNC,4);
pin_config_set(SUNXI_PINCTRL,irq_pin_name,config);
}
}
void gtp_io_init(int ms)
{
ctp_wakeup(0, 0);
msleep(ms);
gtp_set_int_value(0);
msleep(2);
ctp_wakeup(1, 0);
msleep(6);
#if GTP_ESD_PROTECT
// gtp_init_ext_watchdog(client);
#endif
}
/*******************************************************
Function:
Read data from the i2c slave device.
Input:
client: i2c device.
buf[0]:operate address.
buf[1]~buf[len]:read data buffer.
len:operate length.
Output:
numbers of i2c_msgs to transfer
*********************************************************/
s32 gtp_i2c_read(struct i2c_client *client, u8 *buf, s32 len)
{
struct i2c_msg msgs[2];
s32 ret = -1;
s32 retries = 0;
msgs[0].flags = !I2C_M_RD;
msgs[0].addr = client->addr;
msgs[0].len = GTP_ADDR_LENGTH;
msgs[0].buf = &buf[0];
msgs[1].flags = I2C_M_RD;
msgs[1].addr = client->addr;
msgs[1].len = len - GTP_ADDR_LENGTH;
msgs[1].buf = &buf[GTP_ADDR_LENGTH];
while(retries < 2) {
ret = i2c_transfer(client->adapter, msgs, 2);
if(ret == 2)
break;
retries++;
}
if(retries >= 2) {
printk("%s:I2C retry timeout, reset chip.", __func__);
}
return ret;
}
/*******************************************************
Function:
write data to the i2c slave device.
Input:
client: i2c device.
buf[0]:operate address.
buf[1]~buf[len]:write data buffer.
len:operate length.
Output:
numbers of i2c_msgs to transfer.
*********************************************************/
s32 gtp_i2c_write(struct i2c_client *client,u8 *buf,s32 len)
{
struct i2c_msg msg;
s32 ret = -1;
s32 retries = 0;
msg.flags = !I2C_M_RD;
msg.addr = client->addr;
msg.len = len;
msg.buf = buf;
while(retries < 2) {
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret == 1)
break;
retries++;
}
if(retries >= 2) {
printk("%s:I2C retry timeout, reset chip.", __func__);
}
return ret;
}
/*******************************************************
Function:
Send config Function.
Input:
client: i2c client.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
s32 gtp_send_cfg(struct i2c_client *client)
{
s32 ret = 0;
#if GTP_DRIVER_SEND_CFG
s32 retry = 0;
for (retry = 0; retry < 5; retry++)
{
//ret = gtp_i2c_write(client, config , GTP_CONFIG_MAX_LENGTH + GTP_ADDR_LENGTH);
// if (ret > 0)
// {
// break;
// }
}
#endif
return ret;
}
/*******************************************************
Function:
Disable IRQ Function.
Input:
ts: i2c client private struct.
Output:
None.
*******************************************************/
void gtp_irq_disable(struct goodix_ts_data *ts)
{
unsigned long irqflags;
int ret;
dprintk(DEBUG_INT_INFO, "%s ---start!---\n", __func__);
spin_lock_irqsave(&ts->irq_lock, irqflags);
if (!ts->irq_is_disable) {
ts->irq_is_disable = 1;
ret = input_set_int_enable(&(config_info.input_type), 0);
if (ret < 0)
dprintk(DEBUG_OTHERS_INFO,"%s irq disable failed\n", goodix_ts_name);
}
spin_unlock_irqrestore(&ts->irq_lock, irqflags);
}
/*******************************************************
Function:
Disable IRQ Function.
Input:
ts: i2c client private struct.
Output:
None.
*******************************************************/
void gtp_irq_enable(struct goodix_ts_data *ts)
{
unsigned long irqflags = 0;
int ret;
dprintk(DEBUG_INT_INFO, "%s ---start!---\n", __func__);
spin_lock_irqsave(&ts->irq_lock, irqflags);
if (ts->irq_is_disable) {
ts->irq_is_disable = 0;
ret = input_set_int_enable(&(config_info.input_type), 1);
if (ret < 0)
dprintk(DEBUG_OTHERS_INFO,"%s irq enable failed\n", goodix_ts_name);
}
spin_unlock_irqrestore(&ts->irq_lock, irqflags);
}
/*******************************************************
Function:
Touch down report function.
Input:
ts:private data.
id:tracking id.
x:input x.
y:input y.
w:input weight.
Output:
None.
*******************************************************/
static void gtp_touch_down(struct goodix_ts_data* ts,s32 id,s32 x,s32 y,s32 w)
{
dprintk(DEBUG_X_Y_INFO, "source data:ID:%d, X:%d, Y:%d, W:%d\n", id, x, y, w);
if(1 == exchange_x_y_flag){
swap(x, y);
}
if(1 == revert_x_flag){
x = SCREEN_MAX_X - x;
}
if(1 == revert_y_flag){
y = SCREEN_MAX_Y - y;
}
dprintk(DEBUG_X_Y_INFO,"report data:ID:%d, X:%d, Y:%d, W:%d\n", id, x, y, w);
#if GTP_ICS_SLOT_REPORT
input_mt_slot(ts->input_dev, id);
input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, id);
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_WIDTH_MAJOR, w);
#else
input_report_key(ts->input_dev, BTN_TOUCH, 1);
input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, id);
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_WIDTH_MAJOR, w);
input_mt_sync(ts->input_dev);
#endif
}
/*******************************************************
Function:
Touch up report function.
Input:
ts:private data.
Output:
None.
*******************************************************/
static void gtp_touch_up(struct goodix_ts_data* ts, s32 id)
{
#if GTP_ICS_SLOT_REPORT
input_mt_slot(ts->input_dev, id);
input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, -1);
dprintk(DEBUG_X_Y_INFO, "Touch id[%2d] release!", id);
#else
input_report_key(ts->input_dev, BTN_TOUCH, 0);
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0);
input_mt_sync(ts->input_dev);
#endif
}
/*******************************************************
Function:
Goodix touchscreen work function.
Input:
work: work_struct of goodix_wq.
Output:
None.
*******************************************************/
static void goodix_ts_work_func(struct work_struct *work)
{
u8 end_cmd[3] = {GTP_READ_COOR_ADDR >> 8, GTP_READ_COOR_ADDR & 0xFF, 0};
u8 point_data[2 + 1 + 8 * GTP_MAX_TOUCH + 1]={GTP_READ_COOR_ADDR >> 8, GTP_READ_COOR_ADDR & 0xFF};
u8 touch_num = 0;
u8 finger = 0;
static u16 pre_touch = 0;
static u8 pre_key = 0;
u8 key_value = 0;
u8* coor_data = NULL;
s32 input_x = 0;
s32 input_y = 0;
s32 input_w = 0;
s32 id = 0;
s32 i = 0;
int j = 0;
s32 ret = -1;
struct goodix_ts_data *ts = NULL;
dprintk(DEBUG_X_Y_INFO,"===enter %s===\n",__func__);
ts = container_of(work, struct goodix_ts_data, work);
if (ts->enter_update){
return;
}
for(j=0; j<2;j++)
{
ret = gtp_i2c_read(ts->client, point_data, 12);
if (ret < 0){
printk("I2C transfer error. errno:%d\n ", ret);
goto exit_work_func;
}
}
finger = point_data[GTP_ADDR_LENGTH];
if((finger & 0x80) == 0) {
goto exit_work_func;
}
touch_num = finger & 0x0f;
if (touch_num > GTP_MAX_TOUCH) {
goto exit_work_func;
}
if (touch_num > 1) {
u8 buf[8 * GTP_MAX_TOUCH] = {(GTP_READ_COOR_ADDR + 10) >> 8, (GTP_READ_COOR_ADDR + 10) & 0xff};
ret = gtp_i2c_read(ts->client, buf, 2 + 8 * (touch_num - 1));
memcpy(&point_data[12], &buf[2], 8 * (touch_num - 1));
}
#if GTP_HAVE_TOUCH_KEY
key_value = point_data[3 + 8 * touch_num];
if(key_value || pre_key) {
for (i = 0; i < GTP_MAX_KEY_NUM; i++) {
input_report_key(ts->input_dev, touch_key_array[i], key_value & (0x01<<i));
}
touch_num = 0;
pre_touch = 0;
}
#endif
pre_key = key_value;
dprintk(DEBUG_X_Y_INFO, "pre_touch:%02x, finger:%02x.", pre_touch, finger);
#if GTP_ICS_SLOT_REPORT
if (pre_touch || touch_num) {
s32 pos = 0;
u16 touch_index = 0;
coor_data = &point_data[3];
if(touch_num) {
id = coor_data[pos] & 0x0F;
touch_index |= (0x01<<id);
}
dprintk(DEBUG_X_Y_INFO,
"id=%d, touch_index=0x%x, pre_touch=0x%x\n", id, touch_index, pre_touch);
for (i = 0; i < GTP_MAX_TOUCH; i++) {
if (touch_index & (0x01<<i)) {
input_x = coor_data[pos + 1] | coor_data[pos + 2] << 8;
input_y = coor_data[pos + 3] | coor_data[pos + 4] << 8;
input_w = coor_data[pos + 5] | coor_data[pos + 6] << 8;
gtp_touch_down(ts, id, input_x, input_y, input_w);
pre_touch |= 0x01 << i;
pos += 8;
id = coor_data[pos] & 0x0F;
touch_index |= (0x01<<id);
}else {// if (pre_touch & (0x01 << i))
gtp_touch_up(ts, i);
pre_touch &= ~(0x01 << i);
}
}
}
#else
if (touch_num ) {
for (i = 0; i < touch_num; i++) {
coor_data = &point_data[i * 8 + 3];
id = coor_data[0] & 0x0F;
input_x = coor_data[1] | coor_data[2] << 8;
input_y = coor_data[3] | coor_data[4] << 8;
input_w = coor_data[5] | coor_data[6] << 8;
gtp_touch_down(ts, id, input_x, input_y, input_w);
}
}else if(pre_touch){
dprintk(DEBUG_X_Y_INFO, "Touch Release!");
gtp_touch_up(ts, 0);
}
pre_touch = touch_num;
#endif
input_sync(ts->input_dev);
exit_work_func:
if(!ts->gtp_rawdiff_mode) {
ret = gtp_i2c_write(ts->client, end_cmd, 3);
if (ret < 0) {
printk("I2C write end_cmd error!");
}
}
return ;
}
/*******************************************************
Function:
External interrupt service routine.
Input:
irq: interrupt number.
dev_id: private data pointer.
Output:
irq execute status.
*******************************************************/
irqreturn_t goodix_ts_irq_handler(int irq, void *dev_id)
{
struct goodix_ts_data *ts = (struct goodix_ts_data *)dev_id;
dprintk(DEBUG_INT_INFO, "==========------TS Interrupt-----============\n");
queue_work(goodix_wq, &ts->work);
return 0;
}
/*******************************************************
Function:
Eter sleep function.
Input:
ts:private data.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
#if defined(CONFIG_HAS_EARLYSUSPEND) | defined(CONFIG_PM)
static s8 gtp_enter_sleep(struct goodix_ts_data * ts)
{
s8 ret = -1;
s8 retry = 0;
u8 i2c_control_buf[3] = {(u8)(GTP_REG_SLEEP >> 8), (u8)GTP_REG_SLEEP, 5};
dprintk(DEBUG_SUSPEND, "%s start!\n", __func__);
gtp_set_int_value(0);
while(retry++ < 2) {
ret = gtp_i2c_write(ts->client, i2c_control_buf, 3);
if (ret > 0) {
dprintk(DEBUG_SUSPEND, "GTP enter sleep!");
return ret;
}
msleep(10);
}
dprintk(DEBUG_SUSPEND, "GTP send sleep cmd failed.");
return ret;
}
#endif
/*******************************************************
Function:
Wakeup from sleep mode Function.
Input:
ts: private data.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
static s8 gtp_wakeup_sleep(struct goodix_ts_data * ts)
{
u8 retry = 0;
s8 ret = -1;
gtp_io_init(20);
gtp_set_io_int();
#if GTP_POWER_CTRL_SLEEP
while(retry++ < 5)
{
ret = gtp_send_cfg(ts->client);
if (ret > 0)
{
dprintk(DEBUG_SUSPEND, "Wakeup sleep send config success.");
return ret;
}
}
printk("GTP wakeup sleep failed.");
return ret;
#endif
}
/*******************************************************
Function:
GTP initialize function.
Input:
ts: i2c client private struct.
Output:
Executive outcomes.0---succeed.
*******************************************************/
static s32 gtp_init_panel(struct goodix_ts_data *ts)
{
s32 ret = -1;
#if GTP_DRIVER_SEND_CFG
s32 i;
u8 check_sum = 0;
u8 rd_cfg_buf[16];
int index =0;
#if 1
u8 cfg_info_group1[] = CTP_CFG_GROUP1;
u8 cfg_info_group2[] = CTP_CFG_GROUP2;
u8 cfg_info_group3[] = CTP_CFG_GROUP3;
u8 cfg_info_group4[] = CTP_CFG_GROUP4;
u8 cfg_info_group5[] = CTP_CFG_GROUP5;
u8 cfg_info_group6[] = CTP_CFG_GROUP6;
// u8 cfg_info_group7[] = CTP_CFG_GROUP7;
#else
u8 cfg_info_group1[] = {};
u8 cfg_info_group2[] = {};
u8 cfg_info_group3[] = {};
u8 cfg_info_group4[] = {};
u8 cfg_info_group5[] = {};
u8 cfg_info_group6[] = {};
// u8 cfg_info_group7[] = {};
#endif
u8 *send_cfg_buf[] = {cfg_info_group1,cfg_info_group2,cfg_info_group3,cfg_info_group4,cfg_info_group5,cfg_info_group6};
u8 cfg_info_len[] = {sizeof(cfg_info_group1)/sizeof(cfg_info_group1[0]),\
sizeof(cfg_info_group2)/sizeof(cfg_info_group2[0]),\
sizeof(cfg_info_group3)/sizeof(cfg_info_group3[0]),\
sizeof(cfg_info_group4)/sizeof(cfg_info_group4[0]),\
sizeof(cfg_info_group5)/sizeof(cfg_info_group5[0]),\
sizeof(cfg_info_group6)/sizeof(cfg_info_group6[0])};
//sizeof(cfg_info_group7)/sizeof(cfg_info_group7[0])};
#if 0 //gandy
for(i=0; i<3; i++)
{
if(cfg_info_len[i] > ts->gtp_cfg_len)
{
ts->gtp_cfg_len = cfg_info_len[i];
}
}
#endif
GTP_DEBUG("len1=%d,len2=%d,len3=%d,send_len:%d",cfg_info_len[0],cfg_info_len[1],cfg_info_len[2],ts->gtp_cfg_len);
#if 0
if ((!cfg_info_len[1]) && (!cfg_info_len[2]))
{
rd_cfg_buf[GTP_ADDR_LENGTH] = 0;
}
else
#endif
printk("gtp_i2c_read GTP_REG_SENSOR_ID \n");
{
rd_cfg_buf[0] = GTP_REG_SENSOR_ID >> 8;
rd_cfg_buf[1] = GTP_REG_SENSOR_ID & 0xff;
ret = gtp_i2c_read(ts->client, rd_cfg_buf, 3);
if (ret < 0)
{
GTP_ERROR("Read SENSOR ID failed,default use group1 config!");
rd_cfg_buf[GTP_ADDR_LENGTH] = 0;
}
rd_cfg_buf[GTP_ADDR_LENGTH] &= 0x07;
}
#if 0
if(screen_max_x == 800 && screen_max_y == 480)
{
if(rd_cfg_buf[GTP_ADDR_LENGTH] == 3)
index = 0;
else if(rd_cfg_buf[GTP_ADDR_LENGTH] == 4)
index = 1;
else if(rd_cfg_buf[GTP_ADDR_LENGTH] == 5)
index = 3;
else if(rd_cfg_buf[GTP_ADDR_LENGTH] == 0)
index = 6;
}
else if(screen_max_x == 1024 && screen_max_y == 600)
{
if(rd_cfg_buf[GTP_ADDR_LENGTH] == 0)
index = 5;
else if(rd_cfg_buf[GTP_ADDR_LENGTH] == 3)
index = 2;
}
#endif
GTP_DEBUG("CTP name : %s\n",config_info.name);
if (!strcmp(config_info.name,"gt911_805d5")){
index = 0;
GTP_DEBUG("gt9xx:index = %d\n",index);
} else if (!strcmp(config_info.name,"gt911_g912")){
index = 2;
GTP_DEBUG("gt9xx:index = %d\n",index);
} else if (!strcmp(config_info.name,"gt911_xw785")){
index = 3;
GTP_DEBUG("gt9xx:index = %d\n",index);
} else {//default gt9xx_ts
index = 1; //default p4
GTP_DEBUG("gt9xx:index = %d\n",index);
}
printk("config send_cfg_buf******** \n");
//index = rd_cfg_buf[GTP_ADDR_LENGTH];
ts->gtp_cfg_len = cfg_info_len[index];
GTP_DEBUG("gandy---SENSOR ID:%d\n", rd_cfg_buf[GTP_ADDR_LENGTH]);
memset(&config[GTP_ADDR_LENGTH], 0, GTP_CONFIG_MAX_LENGTH);
memcpy(&config[GTP_ADDR_LENGTH], send_cfg_buf[index], ts->gtp_cfg_len);
#if GTP_CUSTOM_CFG
config[RESOLUTION_LOC] = (u8)GTP_MAX_WIDTH;
config[RESOLUTION_LOC + 1] = (u8)(GTP_MAX_WIDTH>>8);
config[RESOLUTION_LOC + 2] = (u8)GTP_MAX_HEIGHT;
config[RESOLUTION_LOC + 3] = (u8)(GTP_MAX_HEIGHT>>8);
if (GTP_INT_TRIGGER == 0) //RISING
{
config[TRIGGER_LOC] &= 0xfe;
}
else if (GTP_INT_TRIGGER == 1) //FALLING
{
config[TRIGGER_LOC] |= 0x01;
}
#endif //endif GTP_CUSTOM_CFG
check_sum = 0;
for (i = GTP_ADDR_LENGTH; i < ts->gtp_cfg_len; i++)
{
check_sum += config[i];
}
config[ts->gtp_cfg_len] = (~check_sum) + 1;
#else //else DRIVER NEED NOT SEND CONFIG
if(ts->gtp_cfg_len == 0)
{
ts->gtp_cfg_len = GTP_CONFIG_MAX_LENGTH;
}
ret = gtp_i2c_read(ts->client, config, ts->gtp_cfg_len + GTP_ADDR_LENGTH);
if (ret < 0)
{
GTP_ERROR("GTP read resolution & max_touch_num failed, use default value!");
ts->abs_x_max = GTP_MAX_WIDTH;
ts->abs_y_max = GTP_MAX_HEIGHT;
ts->int_trigger_type = GTP_INT_TRIGGER;
}
#endif //endif GTP_DRIVER_SEND_CFG
GTP_DEBUG_FUNC();
ts->abs_x_max = (config[RESOLUTION_LOC + 1] << 8) + config[RESOLUTION_LOC];
ts->abs_y_max = (config[RESOLUTION_LOC + 3] << 8) + config[RESOLUTION_LOC + 2];
ts->int_trigger_type = (config[TRIGGER_LOC]) & 0x03;
if ((!ts->abs_x_max)||(!ts->abs_y_max))
{
GTP_ERROR("GTP resolution & max_touch_num invalid, use default value!");
ts->abs_x_max = GTP_MAX_WIDTH;
ts->abs_y_max = GTP_MAX_HEIGHT;
}
msleep(100);
ret = gtp_send_cfg(ts->client);
if (ret < 0)
{
printk("\ngandy-----send config error.ret=%d\n",ret);
GTP_ERROR("Send config error.");
}
printk("X_MAX = %d,Y_MAX = %d,TRIGGER = 0x%02x",
ts->abs_x_max,ts->abs_y_max,ts->int_trigger_type);
msleep(10);
return 0;
}
/*******************************************************
Function:
Read goodix touchscreen version function.
Input:
client: i2c client struct.
version:address to store version info
Output:
Executive outcomes.0---succeed.
*******************************************************/
s32 gtp_read_version(struct i2c_client *client, u16* version)
{
s32 ret = -1;
u8 buf[8] = {GTP_REG_VERSION >> 8, GTP_REG_VERSION & 0xff};
dprintk(DEBUG_INIT, "%s ---start!.---\n", __func__);
ret = gtp_i2c_read(client, buf, sizeof(buf));
if (ret < 0) {
printk("GTP read version failed");
return ret;
}
if (version) {
*version = (buf[7] << 8) | buf[6];
}
if (buf[5] == 0x00) {
printk("IC Version: %c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[7], buf[6]);
}
else {
printk("IC Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
}
return ret;
}
/*******************************************************
Function:
I2c test Function.
Input:
client:i2c client.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
static s8 gtp_i2c_test(struct i2c_client *client)
{
u8 test[3] = {GTP_REG_CONFIG_DATA >> 8, GTP_REG_CONFIG_DATA & 0xff};
u8 retry = 0;
s8 ret = -1;
while(retry++ < 2) {
ret = gtp_i2c_read(client, test, 3);
if (ret > 0) {
return ret;
}
printk("GTP i2c test failed time %d.",retry);
msleep(10);
}
return ret;
}
/*******************************************************
Function:
Request input device Function.
Input:
ts:private data.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
static s8 gtp_request_input_dev(struct goodix_ts_data *ts)
{
s8 ret = -1;
#if GTP_HAVE_TOUCH_KEY
u8 index = 0;
#endif
ts->input_dev = input_allocate_device();
if (ts->input_dev == NULL) {
GTP_ERROR("Failed to allocate input device.");
return -ENOMEM;
}
ts->input_dev->evbit[0] = BIT_MASK(EV_SYN) | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) ;
#if GTP_ICS_SLOT_REPORT
__set_bit(INPUT_PROP_DIRECT, ts->input_dev->propbit);
input_mt_init_slots(ts->input_dev, 255);
#else
ts->input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
#endif
#if GTP_HAVE_TOUCH_KEY
for (index = 0; index < GTP_MAX_KEY_NUM; index++) {
input_set_capability(ts->input_dev,EV_KEY,touch_key_array[index]);
}
#endif
//#if GTP_CHANGE_X2Y
// GTP_SWAP(ts->abs_x_max, ts->abs_y_max);
//#endif
set_bit(ABS_MT_POSITION_X, ts->input_dev->absbit);
set_bit(ABS_MT_POSITION_Y, ts->input_dev->absbit);
set_bit(ABS_MT_TOUCH_MAJOR, ts->input_dev->absbit);
set_bit(ABS_MT_WIDTH_MAJOR, ts->input_dev->absbit);
input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, 0, SCREEN_MAX_X, 0, 0);
input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, 0, SCREEN_MAX_Y, 0, 0);
input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0);
input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
input_set_abs_params(ts->input_dev, ABS_MT_TRACKING_ID, 0, 255, 0, 0);
__set_bit(INPUT_PROP_DIRECT, ts->input_dev->propbit);
ts->input_dev->name = CTP_NAME;
ts->input_dev->phys = "input/goodix-ts";
ts->input_dev->id.bustype = BUS_I2C;
ts->input_dev->id.vendor = 0xDEAD;
ts->input_dev->id.product = 0xBEEF;
ts->input_dev->id.version = 10427;
ret = input_register_device(ts->input_dev);
if (ret) {
printk("Register %s input device failed", ts->input_dev->name);
return -ENODEV;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
ts->early_suspend.suspend = goodix_ts_early_suspend;
ts->early_suspend.resume = goodix_ts_late_resume;
register_early_suspend(&ts->early_suspend);
#endif
return 0;
}
/*******************************************************
Function:
Goodix touchscreen probe function.
Input:
client: i2c device struct.
id:device id.
Output:
Executive outcomes. 0---succeed.
*******************************************************/
static int goodix_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
s32 ret = -1;
struct goodix_ts_data *ts;
u16 version_info;
dprintk(DEBUG_INIT, "GTP Driver Version:%s\n",GTP_DRIVER_VERSION);
printk("GTP I2C Address:0x%02x\n", client->addr);
i2c_connect_client = client;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
printk("I2C check functionality failed.\n");
return -ENODEV;
}
ts = kzalloc(sizeof(*ts), GFP_KERNEL);
if (ts == NULL) {
printk("Alloc GFP_KERNEL memory failed.\n");
return -ENOMEM;
}
memset(ts, 0, sizeof(*ts));
INIT_WORK(&ts->work, goodix_ts_work_func);
ts->client = client;
i2c_set_clientdata(client, ts);
//ts->irq_lock = SPIN_LOCK_UNLOCKED;
ts->gtp_rawdiff_mode = 0;
ret = gtp_i2c_test(client);
if (ret < 0){
printk("I2C communication ERROR!\n");
goto exit_device_detect;
}
printk(KERN_ALERT "create_singlethread_workqueue goodix_resume.\n");
goodix_resume_wq = create_singlethread_workqueue("goodix_resume");
if (goodix_resume_wq == NULL) {
printk("create goodix_resume_wq fail!\n");
return -ENOMEM;
}
printk(KERN_ALERT "create_singlethread_workqueue goodix_wq.\n");
goodix_wq = create_singlethread_workqueue("goodix_wq");
if (!goodix_wq) {
printk(KERN_ALERT "Creat goodix_wq workqueue failed.\n");
return -ENOMEM;
}
#if GTP_AUTO_UPDATE
//ret = gup_init_update_proc(ts);
// if (ret < 0) {
// printk("Create update thread error.");
// }
#endif
ret = gtp_init_panel(ts);
if (ret < 0) {
printk("GTP init panel failed.\n");
}
ret = gtp_request_input_dev(ts);
if (ret < 0) {
printk("GTP request input dev failed\n");
goto exit_device_detect;
}
ret = gtp_read_version(client, &version_info);
if (ret < 0) {
printk("Read version failed.");
}
config_info.dev = &(ts->input_dev->dev);
ret = input_request_int(&(config_info.input_type), goodix_ts_irq_handler,CTP_IRQ_MODE, ts);
if (ret) {
printk("Request irq fail!.\n");
}
spin_lock_init(&ts->irq_lock);
#if GTP_CREATE_WR_NODE
init_wr_node(client);
#endif
#if GTP_ESD_PROTECT
INIT_DELAYED_WORK(&gtp_esd_check_work, gtp_esd_check_func);
gtp_esd_check_workqueue = create_workqueue("gtp_esd_check");
queue_delayed_work(gtp_esd_check_workqueue, &gtp_esd_check_work, GTP_ESD_CHECK_CIRCLE);
#endif
dprintk(DEBUG_INIT, "gt9xx probe success!\n");
return 0;
exit_device_detect:
i2c_set_clientdata(client, NULL);
kfree(ts);
return ret;
}
/*******************************************************
Function:
Goodix touchscreen driver release function.
Input:
client: i2c device struct.
Output:
Executive outcomes. 0---succeed.
*******************************************************/
static int goodix_ts_remove(struct i2c_client *client)
{
struct goodix_ts_data *ts = i2c_get_clientdata(client);
dprintk(DEBUG_INIT,"%s start!\n", __func__);
#ifdef CONFIG_HAS_EARLYSUSPEND
unregister_early_suspend(&ts->early_suspend);
#endif
#if GTP_CREATE_WR_NODE
uninit_wr_node();
#endif
#if GTP_ESD_PROTECT
flush_workqueue(gtp_esd_check_workqueue);
if(gtp_esd_check_workqueue)
destroy_workqueue(gtp_esd_check_workqueue);
#endif
input_free_int(&(config_info.input_type), ts);
flush_workqueue(goodix_wq);
//cancel_work_sync(&goodix_init_work);
cancel_work_sync(&goodix_resume_work);
if(goodix_wq)
destroy_workqueue(goodix_wq);
//destroy_workqueue(goodix_init_wq);
if(goodix_resume_wq)
destroy_workqueue(goodix_resume_wq);
i2c_set_clientdata(ts->client, NULL);
input_unregister_device(ts->input_dev);
kfree(ts);
return 0;
}
static void goodix_resume_events (struct work_struct *work)
{
int ret;
struct goodix_ts_data *ts = i2c_get_clientdata(i2c_connect_client);
ret = gtp_wakeup_sleep(ts);
if (ret < 0)
printk("resume power on failed\n");
gtp_irq_enable(ts);
}
/*******************************************************
Function:
Early suspend function.
Input:
h:early_suspend struct.
Output:
None.
*******************************************************/
#ifdef CONFIG_HAS_EARLYSUSPEND
static void goodix_ts_early_suspend(struct early_suspend *h)
{
struct goodix_ts_data *ts;
s8 ret = -1;
ts = container_of(h, struct goodix_ts_data, early_suspend);
#if GTP_ESD_PROTECT
ts->gtp_is_suspend = 1;
cancel_delayed_work_sync(&gtp_esd_check_work);
#endif
gtp_irq_disable(ts);
cancel_work_sync(&goodix_resume_work);
flush_workqueue(goodix_resume_wq);
ret = cancel_work_sync(&ts->work);
flush_workqueue(goodix_wq);
ret = gtp_enter_sleep(ts);
if (ret < 0) {
printk("GTP early suspend failed.");
}
}
/*******************************************************
Function:
Late resume function.
Input:
h:early_suspend struct.
Output:
None.
*******************************************************/
static void goodix_ts_late_resume(struct early_suspend *h)
{
struct goodix_ts_data *ts;
ts = container_of(h, struct goodix_ts_data, early_suspend);
queue_work(goodix_resume_wq, &goodix_resume_work);//gandy
#if GTP_ESD_PROTECT
ts->gtp_is_suspend = 0;
queue_delayed_work(gtp_esd_check_workqueue, &gtp_esd_check_work, GTP_ESD_CHECK_CIRCLE);
#endif
}
#else
#ifdef CONFIG_PM
static int goodix_ts_suspend(struct device *dev)
{
struct goodix_ts_data *ts = dev_get_drvdata(dev);
s8 ret = -1;
printk("%s goodix_ts_suspend\n", goodix_ts_name);
#if GTP_ESD_PROTECT
ts->gtp_is_suspend = 1;
cancel_delayed_work_sync(&gtp_esd_check_work);
#endif
ret = input_set_int_enable(&(config_info.input_type), 0);
if (ret < 0)
dprintk(DEBUG_SUSPEND,"%s irq disable failed\n", goodix_ts_name);
cancel_work_sync(&goodix_resume_work);
flush_workqueue(goodix_resume_wq);
ret = cancel_work_sync(&ts->work);
flush_workqueue(goodix_wq);
ret = gtp_enter_sleep(ts);
if (ret < 0) {
printk("GTP suspend failed.");
}
return 0;
}
static int goodix_ts_resume(struct device *dev)
{
printk("%s goodix_ts_resume\n", goodix_ts_name);
queue_work(goodix_resume_wq, &goodix_resume_work);//gandy
#if GTP_ESD_PROTECT
struct goodix_ts_data *ts = dev_get_drvdata(dev);
ts->gtp_is_suspend = 0;
queue_delayed_work(gtp_esd_check_workqueue, &gtp_esd_check_work, GTP_ESD_CHECK_CIRCLE);
#endif
return 0;
}
#endif
#endif
#if GTP_ESD_PROTECT
/*******************************************************
Function:
Initialize external watchdog for esd protect
Input:
client: i2c device.
Output:
result of i2c write operation.
1: succeed, otherwise: failed
*********************************************************/
s32 gtp_init_ext_watchdog(struct i2c_client *client)
{
u8 opr_buffer[4] = {0x80, 0x40, 0xAA, 0xAA};
dprintk(DEBUG_INIT, "Init external watchdog...");
return gtp_i2c_write(client, opr_buffer, 4);
}
/*******************************************************
Function:
Esd protect function.
Added external watchdog by meta, 2013/03/07
Input:
work: delayed work
Output:
None.
*******************************************************/
static void gtp_esd_check_func(struct work_struct *work)
{
s32 i;
s32 ret = -1;
struct goodix_ts_data *ts = NULL;
u8 test[4] = {0x80, 0x40};
dprintk(DEBUG_INIT, "enter %s work!\n", __func__);
ts = i2c_get_clientdata(i2c_connect_client);
if (ts->gtp_is_suspend || ts->enter_update) {
return;
}
for (i = 0; i < 3; i++) {
ret = gtp_i2c_read(ts->client, test, 4);
dprintk(DEBUG_INIT, "0x8040 = 0x%02X, 0x8041 = 0x%02X", test[2], test[3]);
if ((ret < 0)) {
// IC works abnormally..
continue;
}else {
if ((test[2] == 0xAA) || (test[3] != 0xAA)) {
// IC works abnormally..
i = 3;
break;
}else {
// IC works normally, Write 0x8040 0xAA
test[2] = 0xAA;
gtp_i2c_write(ts->client, test, 3);
break;
}
}
}
if (i >= 3) {
GTP_DEBUG("IC Working ABNORMALLY, Resetting Guitar...");
// gtp_reset_guitar(ts->client, 50);
}
if(!ts->gtp_is_suspend) {
queue_delayed_work(gtp_esd_check_workqueue, &gtp_esd_check_work, GTP_ESD_CHECK_CIRCLE);
}
return;
}
#endif
static const struct i2c_device_id goodix_ts_id[] = {
{ CTP_NAME, 0 },
{ }
};
#ifndef CONFIG_HAS_EARLYSUSPEND
#ifdef CONFIG_PM
static const struct dev_pm_ops gt9xx_pm_ops = {
.suspend = goodix_ts_suspend,
.resume = goodix_ts_resume,
};
#define GT9XX_PM_OPS (&gt9xx_pm_ops)
#endif
#endif
static struct i2c_driver goodix_ts_driver = {
.class = I2C_CLASS_HWMON,
.probe = goodix_ts_probe,
.remove = goodix_ts_remove,
.id_table = goodix_ts_id,
.driver = {
.name = CTP_NAME,
.owner = THIS_MODULE,
#ifndef CONFIG_HAS_EARLYSUSPEND
#ifdef CONFIG_PM
.pm = GT9XX_PM_OPS,
#endif
#endif
},
.address_list = normal_i2c,
};
static int ctp_get_system_config(void)
{
ctp_print_info(config_info,DEBUG_INIT);
twi_id = config_info.twi_id;
screen_max_x = config_info.screen_max_x;
screen_max_y = config_info.screen_max_y;
revert_x_flag = config_info.revert_x_flag;
revert_y_flag = config_info.revert_y_flag;
exchange_x_y_flag = config_info.exchange_x_y_flag;
if((screen_max_x == 0) || (screen_max_y == 0)){
printk("%s:read config error!\n",__func__);
return 0;
}
return 1;
}
/*******************************************************
* Function:
* Driver Install function.
* Input:
* None.
* Output:
* Executive Outcomes. 0---succeed.
* ********************************************************/
static int __init goodix_ts_init(void)
{
s32 ret = -1;
int val = 0;
struct device_node *np = NULL;
dprintk(DEBUG_INIT,"GTP driver init\n");
if (!input_sensor_startup(&(config_info.input_type))) {
ret = input_sensor_init(&(config_info.input_type));
if (ret != 0) {
pr_err("%s:ctp_ops.input_sensor_init err.\n", __func__);
return ret;
}
input_set_power_enable(&(config_info.input_type), 1);
} else {
pr_err("%s: input_ctp_startup err.\n", __func__);
return 0;
}
if(config_info.ctp_used == 0){
printk("*** ctp_used set to 0 !\n");
printk("*** if use ctp,please put the sys_config.fex ctp_used set to 1. \n");
return 0;
}
np = of_find_node_by_name(NULL, "ctp");
if (!np) {
pr_err("ERROR! get ctp node failed, func:%s, line:%d\n",__FUNCTION__, __LINE__);
return -1;
}
ret = of_property_read_u32(np, "ctp_gesture_wakeup", &val);
if (ret) {
pr_err("get ctp_screen_max_x is fail, %d\n", ret);
}
msleep(10);
if(!ctp_get_system_config()){
printk("%s:read config fail!\n",__func__);
return ret;
}
sunxi_gpio_to_name(CTP_IRQ_NUMBER,irq_pin_name);
gtp_io_init(20);
goodix_wq = create_singlethread_workqueue("goodix_wq");
if (!goodix_wq)
{
GTP_ERROR("Creat workqueue failed.");
return -ENOMEM;
}
#if GTP_ESD_PROTECT
INIT_DELAYED_WORK(&gtp_esd_check_work, gtp_esd_check_func);
gtp_esd_check_workqueue = create_workqueue("gtp_esd_check");
#endif
goodix_ts_driver.detect = ctp_detect;
ret = i2c_add_driver(&goodix_ts_driver);
return ret;
}
/*******************************************************
Function:
Driver uninstall function.
Input:
None.
Output:
Executive Outcomes. 0---succeed.
********************************************************/
static void __exit goodix_ts_exit(void)
{
printk("GTP driver exited.\n");
i2c_del_driver(&goodix_ts_driver);
input_sensor_free(&(config_info.input_type));
}
late_initcall(goodix_ts_init);
module_exit(goodix_ts_exit);
MODULE_DESCRIPTION("GTP Series Driver");
MODULE_LICENSE("GPL");
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