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/* SPDX-License-Identifier: GPL-2.0 */
#define CT363_POINT_NUM 10
struct ct363_finger_data {
unsigned char xhi; // X coordinate Hi
unsigned char yhi; // Y coordinate Hi
unsigned char ylo : 4; // Y coordinate Lo
unsigned char xlo : 4; // X coordinate Lo
unsigned char status : 3; // Action information, 1: Down; 2: Move; 3: Up
unsigned char id : 5; // ID information, from 1 to CFG_MAX_POINT_NUM
unsigned char area; // Touch area
unsigned char pressure; // Touch Pressure
};
struct ct363_priv{
int press;
int release;
int x, y;
union{
struct ct363_finger_data pts[CT363_POINT_NUM];
char buf[CT363_POINT_NUM * sizeof(struct ct363_finger_data)];
};
};
static int ct363_init_hw(struct ct36x_data *ts)
{
/*
int ret = 0;
ret = gpio_request(ts->rst_io.gpio, "ct363_rst");
if(ret < 0){
dev_err(ts->dev, "Failed to request rst gpio\n");
return ret;
}
ret = gpio_request(ts->irq_io.gpio, "ct363_irq");
if(ret < 0){
gpio_free(ts->rst_io.gpio);
dev_err(ts->dev, "Failed to request irq gpio\n");
return ret;
}*/
gpio_direction_input(ts->irq_io.gpio);
//gpio_pull_updown(ts->irq_io.gpio, 1);
//gpio_set_value(ts->irq_io.gpio,1);
gpio_direction_output(ts->rst_io.gpio, ts->rst_io.active_low);
return 0;
}
static void ct363_deinit_hw(struct ct36x_data *ts)
{
gpio_free(ts->rst_io.gpio);
gpio_free(ts->irq_io.gpio);
}
static void ct363_reset_hw(struct ct36x_data *ts)
{
gpio_direction_output(ts->rst_io.gpio, ts->rst_io.active_low);
msleep(50);
gpio_set_value(ts->rst_io.gpio, !ts->rst_io.active_low);
msleep(50);
gpio_set_value(ts->rst_io.gpio, ts->rst_io.active_low);
msleep(500);
}
static int ct363_init(struct ct36x_data *ts)
{
int ret = 0, fwchksum, binchksum, updcnt = 5;
struct ct363_priv *ct363 = NULL;
ret = ct363_init_hw(ts);
if(ret < 0)
return ret;
/* Hardware reset */
ct363_reset_hw(ts);
// Get binary Checksum
binchksum = ct36x_chip_get_binchksum();
ct36x_dbg(ts, "CT363 init: binchksum = %d\n", binchksum);
ret = ct36x_chip_get_fwchksum(ts);
if(ret < 0){
dev_err(ts->dev, "CT36X chip: Failed to get fwchksum\n");
return ret;
}
fwchksum = ret;
ct36x_dbg(ts, "CT363 init: fwchksum = %d\n", fwchksum);
while(binchksum != fwchksum && updcnt--) {
/* Update Firmware */
ret = ct36x_chip_go_bootloader(ts);
if(ret < 0){
dev_err(ts->dev, "CT36X chip: Failed to go bootloader\n");
return ret;
}
/* Hardware reset */
ct363_reset_hw(ts);
ret = ct36x_chip_get_fwchksum(ts);
if(ret < 0){
dev_err(ts->dev, "CT36X chip: Failed to get fwchksum\n");
return ret;
}
fwchksum = ret;
ct36x_dbg(ts, "CT363 update FW: fwchksum = %d\n", fwchksum);
}
if(binchksum != fwchksum){
dev_err(ts->dev, "Fail to update FW\n");
return -ENODEV;
}
/* Hardware reset */
ct363_reset_hw(ts);
msleep(5);
ts->point_num = CT363_POINT_NUM;
ct363 = kzalloc(sizeof(struct ct363_priv), GFP_KERNEL);
if(!ct363){
dev_err(ts->dev, "No memory for ct36x");
return -ENOMEM;
}
ts->priv = ct363;
return 0;
}
static void ct363_deinit(struct ct36x_data *ts)
{
struct ct363_priv *ct363 = ts->priv;
ct363_deinit_hw(ts);
kfree(ct363);
ts->priv = NULL;
return;
}
static int ct363_first_init_flag = 1;
static int ct363_suspend(struct ct36x_data *ts)
{
int ret = 0;
ret = ct36x_chip_go_sleep(ts);
ct363_first_init_flag=0;
if(ret < 0)
dev_warn(ts->dev, "CT363 chip: failed to go to sleep\n");
return ret;
}
static int ct363_resume(struct ct36x_data *ts)
{
int i;
/* Hardware reset */
if(ct363_first_init_flag)
ct363_reset_hw(ts);
else
{
// gpio_direction_output(ts->rst_io.gpio, ts->rst_io.active_low);
// msleep(50);
gpio_set_value(ts->rst_io.gpio, !ts->rst_io.active_low);
msleep(50);
gpio_set_value(ts->rst_io.gpio, ts->rst_io.active_low);
msleep(50);
}
for(i = 0; i < ts->point_num; i++){
input_mt_slot(ts->input, i);
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
}
input_sync(ts->input);
return 0;
}
static void ct363_report(struct ct36x_data *ts)
{
int t ,m;
int i, ret = 0;
int sync = 0, x, y;
int len = sizeof(struct ct363_finger_data) * ts->point_num;
struct ct363_priv *ct363 = ts->priv;
ret = ct36x_read(ts, ct363->buf, len);
if(ret < 0){
dev_warn(ts->dev, "Failed to read finger data\n");
return;
}
if(ct36x_dbg_level==2)
for(t=0;t< ts->point_num;t++){
ct36x_dbg(ts, "CT363buf[%d]: ", t);
for(m=0;m<6;m++){
ct36x_dbg(ts, " 0x%x %x %x %x %x %x %x %x ",ct363->pts[t].xhi,
ct363->pts[t].yhi,
ct363->pts[t].ylo,
ct363->pts[t].xlo,
ct363->pts[t].status,
ct363->pts[t].id,
ct363->pts[t].area,
ct363->pts[t].pressure);
}
ct36x_dbg(ts, " \n ");
}
ct363->press = 0;
for(i = 0; i < ts->point_num; i++){
if((ct363->pts[i].xhi != 0xFF && ct363->pts[i].yhi != 0xFF) &&
(ct363->pts[i].status == 1 || ct363->pts[i].status == 2)){
x = (ct363->pts[i].xhi<<4)|(ct363->pts[i].xlo&0xF);
y = (ct363->pts[i].yhi<<4)|(ct363->pts[i].ylo&0xF);
ct363->x = ts->orientation[0] * x + ts->orientation[1] * y;
ct363->y = ts->orientation[2] * x + ts->orientation[3] * y;
if( (ct363->x > ts->x_max) || (ct363->y > ts->y_max) || (ct363->x < 0) || (ct363->y < 0) ){
continue ;
}
if(flag_ct36x_model==363){
ct363->y = ts->y_max - ct363->y; //add for p977
}
input_mt_slot(ts->input, ct363->pts[i].id - 1);
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, true);
input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR, 1);
input_report_abs(ts->input, ABS_MT_POSITION_X, ct363->x);
input_report_abs(ts->input, ABS_MT_POSITION_Y, ct363->y);
input_report_abs(ts->input, ABS_MT_PRESSURE, ct363->pts[i].pressure);
ct36x_dbg(ts, "CT363 report value: id: %d, x: %d, y:%d\n",ct363->pts[i].id - 1, ct363->x, ct363->y);
sync = 1;
ct363->press |= 0x01 << (ct363->pts[i].id - 1);
}
}
ct363->release &= ct363->release ^ ct363->press;
for(i = 0; i < ts->point_num; i++){
if ( ct363->release & (0x01<<i) ) {
input_mt_slot(ts->input, i);
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
ct36x_dbg(ts, "CT363 release\n");
sync = 1;
}
}
ct363->release = ct363->press;
if(sync)
input_sync(ts->input);
return;
}
struct ct36x_ops ct363_ops = {
.init = ct363_init,
.deinit = ct363_deinit,
.suspend = ct363_suspend,
.resume = ct363_resume,
.report = ct363_report,
};
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