/*
* drivers/input/touchscreen/gslX680.c
*
* Copyright (c) 2012 Shanghai Basewin
* Guan Yuwei<guanyuwei@basewin.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/hrtimer.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/async.h>
#include <linux/irq.h>
#include <linux/uaccess.h>
#include <linux/workqueue.h>
#include <linux/proc_fs.h>
#include <linux/input/mt.h>
#include <linux/version.h>
#include <linux/slab.h>
#include <linux/of_gpio.h>
#include "tp_suspend.h"
#include "gslx680_pad.h"
#include <linux/wakelock.h>
//#define GSL_DEBUG
#define REPORT_DATA_ANDROID_4_0
//#define SLEEP_CLEAR_POINT
//#define FILTER_POINT
#ifdef FILTER_POINT
#define FILTER_MAX 9
#endif
#define GSLX680_I2C_NAME "gslX680-pad"
#define GSLX680_I2C_ADDR 0x40
int g_wake_pin=0;
int g_irq_pin=0;
#define GSL_DATA_REG 0x80
#define GSL_STATUS_REG 0xe0
#define GSL_PAGE_REG 0xf0
#define TPD_PROC_DEBUG
#ifdef TPD_PROC_DEBUG
#include <linux/proc_fs.h>
#include <linux/uaccess.h>
#include <linux/seq_file.h> //lzk
//static struct proc_dir_entry *gsl_config_proc = NULL;
#define GSL_CONFIG_PROC_FILE "gsl_config"
#define CONFIG_LEN 31
static char gsl_read[CONFIG_LEN];
static u8 gsl_data_proc[8] = {0};
static u8 gsl_proc_flag = 0;
#endif
#define PRESS_MAX 255
#define MAX_FINGERS 10
#define MAX_CONTACTS 10
#define DMA_TRANS_LEN 0x20
static struct i2c_client *gsl_client = NULL;
struct gsl_ts_data {
u8 x_index;
u8 y_index;
u8 z_index;
u8 id_index;
u8 touch_index;
u8 data_reg;
u8 status_reg;
u8 data_size;
u8 touch_bytes;
u8 update_data;
u8 touch_meta_data;
u8 finger_size;
};
static struct gsl_ts_data devices[] = {
{
.x_index = 6,
.y_index = 4,
.z_index = 5,
.id_index = 7,
.data_reg = GSL_DATA_REG,
.status_reg = GSL_STATUS_REG,
.update_data = 0x4,
.touch_bytes = 4,
.touch_meta_data = 4,
.finger_size = 70,
},
};
struct gsl_ts {
struct i2c_client *client;
struct input_dev *input;
struct work_struct work;
struct workqueue_struct *wq;
struct gsl_ts_data *dd;
u8 *touch_data;
u8 device_id;
int irq;
int irq_pin;
int wake_pin;
struct tp_device tp;
int screen_max_x;
int screen_max_y;
struct gsl_touch_chip_info *gsl_chip_info;
struct work_struct download_fw_work;
struct work_struct resume_work;
};
#ifdef GSL_DEBUG
#define print_info(fmt, args...) \
do{ \
printk(fmt, ##args); \
}while(0)
#else
#define print_info(fmt, args...)
#endif
static u32 id_sign[MAX_CONTACTS+1] = {0};
static u8 id_state_flag[MAX_CONTACTS+1] = {0};
static u8 id_state_old_flag[MAX_CONTACTS+1] = {0};
static u16 x_old[MAX_CONTACTS+1] = {0};
static u16 y_old[MAX_CONTACTS+1] = {0};
static u16 x_new = 0;
static u16 y_new = 0;
static struct gsl_touch_chip_info gsl_chip_info[] = {
{GSL680,GSLX680_FW,ARRAY_SIZE(GSLX680_FW),gsl_config_data_id,ARRAY_SIZE(gsl_config_data_id)},
{GSL3676,GSL3675B_FW_HK,ARRAY_SIZE(GSL3675B_FW_HK),gsl3678_config_data_id,ARRAY_SIZE(gsl3678_config_data_id)},
};
static int gslX680_init(void)
{
gpio_set_value(g_wake_pin,1);
gpio_set_value(g_irq_pin,1);
return 0;
}
static int gslX680_shutdown_low(void)
{
if(g_wake_pin !=0)
{
gpio_direction_output(g_wake_pin, 0);
gpio_set_value(g_wake_pin,0);
}
return 0;
}
static int gslX680_shutdown_high(void)
{
if(g_wake_pin !=0)
{
gpio_direction_output(g_wake_pin, 0);
gpio_set_value(g_wake_pin,1);
}
return 0;
}
static inline u16 join_bytes(u8 a, u8 b)
{
u16 ab = 0;
ab = ab | a;
ab = ab << 8 | b;
return ab;
}
static u32 gsl_write_interface(struct i2c_client *client, const u8 reg, u8 *buf, u32 num)
{
struct i2c_msg xfer_msg[1];
buf[0] = reg;
xfer_msg[0].addr = client->addr;
xfer_msg[0].len = num + 1;
xfer_msg[0].flags = client->flags & I2C_M_TEN;
xfer_msg[0].buf = buf;
//xfer_msg[0].scl_rate = 400*1000; //RK3066 RK2926 I2C±¨´íʱ´ò¿ªÕâ¸ö
return i2c_transfer(client->adapter, xfer_msg, 1) == 1 ? 0 : -EFAULT;
}
static int gsl_ts_write(struct i2c_client *client, u8 addr, u8 *pdata, int datalen)
{
int ret = 0;
u8 tmp_buf[128];
unsigned int bytelen = 0;
if (datalen > 125)
{
dev_err(&client->dev,"%s too big datalen = %d!\n", __func__, datalen);
return -1;
}
tmp_buf[0] = addr;
bytelen++;
if (datalen != 0 && pdata != NULL)
{
memcpy(&tmp_buf[bytelen], pdata, datalen);
bytelen += datalen;
}
ret = i2c_master_send(client, tmp_buf, bytelen);
return ret;
}
static int gsl_ts_read(struct i2c_client *client, u8 addr, u8 *pdata, unsigned int datalen)
{
int ret = 0;
if (datalen > 126)
{
dev_err(&client->dev, "%s too big datalen = %d!\n", __func__, datalen);
return -1;
}
ret = gsl_ts_write(client, addr, NULL, 0);
if (ret < 0)
{
dev_err(&client->dev, "%s set data address fail!\n", __func__);
return ret;
}
return i2c_master_recv(client, pdata, datalen);
}
static __inline__ void fw2buf(u8 *buf, const u32 *fw)
{
u32 *u32_buf = (int *)buf;
*u32_buf = *fw;
}
static void gsl_load_fw(struct i2c_client *client)
{
u8 buf[DMA_TRANS_LEN*4 + 1] = {0};
u8 send_flag = 1;
u8 *cur = buf + 1;
u32 source_line = 0;
u32 source_len;
struct gsl_ts *ts = i2c_get_clientdata(gsl_client);
struct fw_data *ptr_fw;
ptr_fw = ts->gsl_chip_info->ptr_fw;
source_len = ts->gsl_chip_info->ptr_fw_len;
for (source_line = 0; source_line < source_len; source_line++)
{
/* init page trans, set the page val */
if (GSL_PAGE_REG == ptr_fw[source_line].offset)
{
fw2buf(cur, &ptr_fw[source_line].val);
gsl_write_interface(client, GSL_PAGE_REG, buf, 4);
//i2c_smbus_write_i2c_block_data(client, GSL_PAGE_REG,4, buf);
send_flag = 1;
}
else
{
if (1 == send_flag % (DMA_TRANS_LEN < 0x20 ? DMA_TRANS_LEN : 0x20))
buf[0] = (u8)ptr_fw[source_line].offset;
fw2buf(cur, &ptr_fw[source_line].val);
cur += 4;
if (0 == send_flag % (DMA_TRANS_LEN < 0x20 ? DMA_TRANS_LEN : 0x20))
{
gsl_write_interface(client, buf[0], buf, cur - buf - 1);
//i2c_smbus_write_i2c_block_data(client, buf[0], cur - buf - 1, buf);
cur = buf + 1;
}
send_flag++;
}
}
}
static int test_i2c(struct i2c_client *client)
{
u8 read_buf = 0;
u8 write_buf = 0x12;
int ret, rc = 1;
ret = gsl_ts_read( client, 0xf0, &read_buf, sizeof(read_buf) );
if (ret < 0)
rc --;
else
dev_info(&client->dev, "I read reg 0xf0 is %x\n", read_buf);
mdelay(2);
ret = gsl_ts_write(client, 0xf0, &write_buf, sizeof(write_buf));
if(ret >= 0 )
dev_info(&client->dev, "I write reg 0xf0 0x12\n");
mdelay(2);
ret = gsl_ts_read( client, 0xf0, &read_buf, sizeof(read_buf) );
if(ret < 0 )
rc --;
else
dev_info(&client->dev, "I read reg 0xf0 is 0x%x\n", read_buf);
return rc;
}
static void startup_chip(struct i2c_client *client)
{
u8 tmp = 0x00;
#ifdef GSL_NOID_VERSION
struct gsl_ts *ts = i2c_get_clientdata(client);
gsl_DataInit(ts->gsl_chip_info->conf_in);
#endif
gsl_ts_write(client, 0xe0, &tmp, 1);
}
static void reset_chip(struct i2c_client *client)
{
u8 tmp = 0x88;
u8 buf[4] = {0x00};
gsl_ts_write(client, 0xe0, &tmp, sizeof(tmp));
mdelay(5);
tmp = 0x04;
gsl_ts_write(client, 0xe4, &tmp, sizeof(tmp));
mdelay(5);
gsl_ts_write(client, 0xbc, buf, sizeof(buf));
}
static void clr_reg(struct i2c_client *client)
{
u8 write_buf[4] = {0};
write_buf[0] = 0x88;
gsl_ts_write(client, 0xe0, &write_buf[0], 1);
msleep(20);
write_buf[0] = 0x03;
gsl_ts_write(client, 0x80, &write_buf[0], 1);
msleep(5);
write_buf[0] = 0x04;
gsl_ts_write(client, 0xe4, &write_buf[0], 1);
msleep(5);
write_buf[0] = 0x00;
gsl_ts_write(client, 0xe0, &write_buf[0], 1);
msleep(20);
}
static void init_chip(struct i2c_client *client)
{
int rc;
struct gsl_ts *ts = i2c_get_clientdata(client);
gslX680_shutdown_low();
mdelay(20);
gslX680_shutdown_high();
gpio_set_value(g_irq_pin,1);
msleep(20);
rc = test_i2c(client);
if(rc < 0)
{
dev_err(&client->dev, "------gslX680 test_i2c error------\n");
return;
}
queue_work(ts->wq, &ts->download_fw_work);
}
static void check_mem_data(struct i2c_client *client)
{
u8 read_buf[4] = {0};
gsl_ts_read(client,0xb0, read_buf, sizeof(read_buf));
if (read_buf[3] != 0x5a || read_buf[2] != 0x5a || read_buf[1] != 0x5a || read_buf[0] != 0x5a)
{
dev_info(&client->dev, "#########check mem read 0xb0 = %x %x %x %x #########\n", read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
init_chip(client);
}
}
#ifdef TPD_PROC_DEBUG
static int char_to_int(char ch)
{
if(ch>='0' && ch<='9')
return (ch-'0');
else
return (ch-'a'+10);
}
static int gsl_read_interface(struct i2c_client *client, u8 reg, u8 *buf, u32 num)
{
int err = 0;
u8 temp = reg;
//mutex_lock(&gsl_i2c_lock);
if(temp < 0x80)
{
temp = (temp+8)&0x5c;
i2c_master_send(client,&temp,1);
err = i2c_master_recv(client,&buf[0],4);
temp = reg;
i2c_master_send(client,&temp,1);
err = i2c_master_recv(client,&buf[0],4);
}
i2c_master_send(client,®,1);
err = i2c_master_recv(client,&buf[0],num);
//mutex_unlock(&gsl_i2c_lock);
return err;
}
static int gsl_config_read_proc(struct seq_file *m,void *v)
{
//char *ptr = page;
char temp_data[5] = {0};
unsigned int tmp=0;
if('v'==gsl_read[0]&&'s'==gsl_read[1])
{
#ifdef GSL_NOID_VERSION
tmp=gsl_version_id();
#else
tmp=0x20121215;
#endif
seq_printf(m,"version:%x\n",tmp);
}
else if('r'==gsl_read[0]&&'e'==gsl_read[1])
{
if('i'==gsl_read[3])
{
#ifdef GSL_NOID_VERSION
tmp=(gsl_data_proc[5]<<8) | gsl_data_proc[4];
#endif
}
else
{
gsl_ts_write(gsl_client,0xf0,&gsl_data_proc[4],4);
gsl_read_interface(gsl_client,gsl_data_proc[0],temp_data,4);
seq_printf(m,"offset : {0x%02x,0x",gsl_data_proc[0]);
seq_printf(m,"%02x",temp_data[3]);
seq_printf(m,"%02x",temp_data[2]);
seq_printf(m,"%02x",temp_data[1]);
seq_printf(m,"%02x};\n",temp_data[0]);
}
}
return 0;
}
ssize_t gsl_config_write_proc(struct file *file, const char *buffer, size_t count, loff_t *data)
{
u8 buf[8] = {0};
char temp_buf[CONFIG_LEN];
char *path_buf;
int tmp = 0;
int tmp1 = 0;
struct gsl_ts *ts = i2c_get_clientdata(gsl_client);
print_info("[tp-gsl][%s] \n",__func__);
if(count > 512)
{
pr_err("size not match [%d:%ld]\n", CONFIG_LEN, count);
return -EFAULT;
}
path_buf=kzalloc(count,GFP_KERNEL);
if(!path_buf)
{
pr_err("alloc path_buf memory error \n");
}
if(copy_from_user(path_buf, buffer, count))
{
pr_err("copy from user fail\n");
goto exit_write_proc_out;
}
memcpy(temp_buf,path_buf,(count<CONFIG_LEN?count:CONFIG_LEN));
buf[3]=char_to_int(temp_buf[14])<<4 | char_to_int(temp_buf[15]);
buf[2]=char_to_int(temp_buf[16])<<4 | char_to_int(temp_buf[17]);
buf[1]=char_to_int(temp_buf[18])<<4 | char_to_int(temp_buf[19]);
buf[0]=char_to_int(temp_buf[20])<<4 | char_to_int(temp_buf[21]);
buf[7]=char_to_int(temp_buf[5])<<4 | char_to_int(temp_buf[6]);
buf[6]=char_to_int(temp_buf[7])<<4 | char_to_int(temp_buf[8]);
buf[5]=char_to_int(temp_buf[9])<<4 | char_to_int(temp_buf[10]);
buf[4]=char_to_int(temp_buf[11])<<4 | char_to_int(temp_buf[12]);
if('v'==temp_buf[0]&& 's'==temp_buf[1])//version //vs
{
memcpy(gsl_read,temp_buf,4);
}
else if('s'==temp_buf[0]&& 't'==temp_buf[1])//start //st
{
gsl_proc_flag = 1;
reset_chip(gsl_client);
}
else if('e'==temp_buf[0]&&'n'==temp_buf[1])//end //en
{
msleep(20);
reset_chip(gsl_client);
startup_chip(gsl_client);
gsl_proc_flag = 0;
}
else if('r'==temp_buf[0]&&'e'==temp_buf[1])//read buf //
{
memcpy(gsl_read,temp_buf,4);
memcpy(gsl_data_proc,buf,8);
}
else if('w'==temp_buf[0]&&'r'==temp_buf[1])//write buf
{
gsl_ts_write(gsl_client,buf[4],buf,4);
}
#ifdef GSL_NOID_VERSION
else if('i'==temp_buf[0]&&'d'==temp_buf[1])//write id config //
{
tmp1=(buf[7]<<24)|(buf[6]<<16)|(buf[5]<<8)|buf[4];
tmp=(buf[3]<<24)|(buf[2]<<16)|(buf[1]<<8)|buf[0];
if(tmp1>=0 && tmp1<ts->gsl_chip_info->conf_in_len)
{
ts->gsl_chip_info->conf_in[tmp1] = tmp;
}
}
#endif
exit_write_proc_out:
kfree(path_buf);
return count;
}
static int gsl_server_list_open(struct inode *inode,struct file *file)
{
return single_open(file,gsl_config_read_proc,NULL);
}
static const struct proc_ops gsl_seq_fops = {
.proc_open = gsl_server_list_open,
.proc_read = seq_read,
.proc_release = single_release,
.proc_write = gsl_config_write_proc,
};
#endif
#ifdef FILTER_POINT
static void filter_point(u16 x, u16 y , u8 id)
{
u16 x_err =0;
u16 y_err =0;
u16 filter_step_x = 0, filter_step_y = 0;
id_sign[id] = id_sign[id] + 1;
if(id_sign[id] == 1)
{
x_old[id] = x;
y_old[id] = y;
}
x_err = x > x_old[id] ? (x -x_old[id]) : (x_old[id] - x);
y_err = y > y_old[id] ? (y -y_old[id]) : (y_old[id] - y);
if( (x_err > FILTER_MAX && y_err > FILTER_MAX/3) || (x_err > FILTER_MAX/3 && y_err > FILTER_MAX) )
{
filter_step_x = x_err;
filter_step_y = y_err;
}
else
{
if(x_err > FILTER_MAX)
filter_step_x = x_err;
if(y_err> FILTER_MAX)
filter_step_y = y_err;
}
if(x_err <= 2*FILTER_MAX && y_err <= 2*FILTER_MAX)
{
filter_step_x >>= 2;
filter_step_y >>= 2;
}
else if(x_err <= 3*FILTER_MAX && y_err <= 3*FILTER_MAX)
{
filter_step_x >>= 1;
filter_step_y >>= 1;
}
else if(x_err <= 4*FILTER_MAX && y_err <= 4*FILTER_MAX)
{
filter_step_x = filter_step_x*3/4;
filter_step_y = filter_step_y*3/4;
}
x_new = x > x_old[id] ? (x_old[id] + filter_step_x) : (x_old[id] - filter_step_x);
y_new = y > y_old[id] ? (y_old[id] + filter_step_y) : (y_old[id] - filter_step_y);
x_old[id] = x_new;
y_old[id] = y_new;
}
#else
static void record_point(u16 x, u16 y , u8 id)
{
u16 x_err =0;
u16 y_err =0;
return;
id_sign[id]=id_sign[id]+1;
if(id_sign[id]==1){
x_old[id]=x;
y_old[id]=y;
}
x = (x_old[id] + x)/2;
y = (y_old[id] + y)/2;
if(x>x_old[id]){
x_err=x -x_old[id];
}
else{
x_err=x_old[id]-x;
}
if(y>y_old[id]){
y_err=y -y_old[id];
}
else{
y_err=y_old[id]-y;
}
if( (x_err > 3 && y_err > 1) || (x_err > 1 && y_err > 3) ){
x_new = x; x_old[id] = x;
y_new = y; y_old[id] = y;
}
else{
if(x_err > 3){
x_new = x; x_old[id] = x;
}
else
x_new = x_old[id];
if(y_err> 3){
y_new = y; y_old[id] = y;
}
else
y_new = y_old[id];
}
if(id_sign[id]==1){
x_new= x_old[id];
y_new= y_old[id];
}
}
#endif
static void report_data(struct gsl_ts *ts, u16 x, u16 y, u8 pressure, u8 id)
{
if(revert_xy)
swap(x, y);
if(x > ts->screen_max_x || y > ts->screen_max_y)
{
return;
}
if(revert_x)
x = ts->screen_max_x-x;
if(revert_y) {
y = ts->screen_max_y-y;
}
#ifdef REPORT_DATA_ANDROID_4_0
input_mt_slot(ts->input, id);
input_report_abs(ts->input, ABS_MT_TRACKING_ID, id);
input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR, pressure);
input_report_abs(ts->input, ABS_MT_POSITION_X, x);
input_report_abs(ts->input, ABS_MT_POSITION_Y, y);
input_report_abs(ts->input, ABS_MT_WIDTH_MAJOR, 1);
#else
input_report_abs(ts->input, ABS_MT_TRACKING_ID, id);
input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR, pressure);
input_report_abs(ts->input, ABS_MT_POSITION_X,x);
input_report_abs(ts->input, ABS_MT_POSITION_Y, y);
input_report_abs(ts->input, ABS_MT_WIDTH_MAJOR, 1);
input_mt_sync(ts->input);
#endif
}
static void gslX680_ts_worker(struct work_struct *work)
{
int rc, i;
u8 id, touches;
u16 x, y;
#ifdef GSL_NOID_VERSION
unsigned int tmp1;
u8 buf[4] = {0};
struct gsl_touch_info cinfo = {{0}};
#endif
struct gsl_ts *ts = container_of(work, struct gsl_ts,work);
#ifdef TPD_PROC_DEBUG
if(gsl_proc_flag == 1)
goto schedule;
#endif
rc = gsl_ts_read(ts->client, 0x80, ts->touch_data, ts->dd->data_size);
if (rc < 0)
{
dev_err(&ts->client->dev, "read failed\n");
reset_chip(ts->client);
startup_chip(ts->client);
goto schedule;
}
touches = ts->touch_data[ts->dd->touch_index];
#ifdef GSL_NOID_VERSION
cinfo.finger_num = touches;
for(i = 0; i < (touches < MAX_CONTACTS ? touches : MAX_CONTACTS); i ++)
{
cinfo.x[i] = join_bytes( ( ts->touch_data[ts->dd->x_index + 4 * i + 1] & 0xf),
ts->touch_data[ts->dd->x_index + 4 * i]);
cinfo.y[i] = join_bytes(ts->touch_data[ts->dd->y_index + 4 * i + 1],
ts->touch_data[ts->dd->y_index + 4 * i ]);
cinfo.id[i] = ((ts->touch_data[ts->dd->x_index + 4 * i + 1] & 0xf0)>>4);
}
cinfo.finger_num=(ts->touch_data[3]<<24)|(ts->touch_data[2]<<16)
|(ts->touch_data[1]<<8)|(ts->touch_data[0]);
gsl_alg_id_main(&cinfo);
tmp1=gsl_mask_tiaoping();
if(tmp1>0&&tmp1<0xffffffff)
{
buf[0]=0xa;buf[1]=0;buf[2]=0;buf[3]=0;
gsl_ts_write(ts->client,0xf0,buf,4);
buf[0]=(u8)(tmp1 & 0xff);
buf[1]=(u8)((tmp1>>8) & 0xff);
buf[2]=(u8)((tmp1>>16) & 0xff);
buf[3]=(u8)((tmp1>>24) & 0xff);
gsl_ts_write(ts->client,0x8,buf,4);
}
touches = cinfo.finger_num;
#endif
for(i = 1; i <= MAX_CONTACTS; i ++)
{
if(touches == 0)
id_sign[i] = 0;
id_state_flag[i] = 0;
}
for(i= 0;i < (touches > MAX_FINGERS ? MAX_FINGERS : touches);i ++)
{
#ifdef GSL_NOID_VERSION
{
id = cinfo.id[i];
x = cinfo.x[i];
y = cinfo.y[i];
}
#else
{
x = join_bytes( ( ts->touch_data[ts->dd->x_index + 4 * i + 1] & 0xf),
ts->touch_data[ts->dd->x_index + 4 * i]);
y = join_bytes(ts->touch_data[ts->dd->y_index + 4 * i + 1],
ts->touch_data[ts->dd->y_index + 4 * i ]);
id = ts->touch_data[ts->dd->id_index + 4 * i] >> 4;
}
#endif
if(1 <=id && id <= MAX_CONTACTS)
{
#ifdef FILTER_POINT
filter_point(x, y ,id);
#else
record_point(x, y , id);
#endif
//report_data(ts, x_new, y_new, 10, id);
report_data(ts, x, y, 10, id);
id_state_flag[id] = 1;
}
}
for(i = 1; i <= MAX_CONTACTS; i ++)
{
if( (0 == touches) || ((0 != id_state_old_flag[i]) && (0 == id_state_flag[i])) )
{
#ifdef REPORT_DATA_ANDROID_4_0
input_mt_slot(ts->input, i);
input_report_abs(ts->input, ABS_MT_TRACKING_ID, -1);
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
#endif
id_sign[i]=0;
}
id_state_old_flag[i] = id_state_flag[i];
}
if(0 == touches)
{
#ifndef REPORT_DATA_ANDROID_4_0
input_mt_sync(ts->input);
#endif
}
input_sync(ts->input);
schedule:
enable_irq(ts->irq);
}
static irqreturn_t gsl_ts_irq(int irq, void *dev_id)
{
struct gsl_ts *ts = dev_id;
disable_irq_nosync(ts->irq);
if (!work_pending(&ts->work))
{
queue_work(ts->wq, &ts->work);
}
return IRQ_HANDLED;
}
static int gslX680_ts_init(struct i2c_client *client, struct gsl_ts *ts)
{
struct input_dev *input_device;
int rc = 0;
ts->dd = &devices[ts->device_id];
if (ts->device_id == 0) {
ts->dd->data_size = MAX_FINGERS * ts->dd->touch_bytes + ts->dd->touch_meta_data;
ts->dd->touch_index = 0;
}
ts->touch_data = kzalloc(ts->dd->data_size, GFP_KERNEL);
if (!ts->touch_data) {
pr_err("%s: Unable to allocate memory\n", __func__);
return -ENOMEM;
}
input_device = input_allocate_device();
if (!input_device) {
rc = -ENOMEM;
goto error_alloc_dev;
}
ts->input = input_device;
input_device->name = GSLX680_I2C_NAME;
input_device->id.bustype = BUS_I2C;
input_device->dev.parent = &client->dev;
input_set_drvdata(input_device, ts);
#ifdef REPORT_DATA_ANDROID_4_0
__set_bit(EV_ABS, input_device->evbit);
__set_bit(EV_KEY, input_device->evbit);
__set_bit(EV_REP, input_device->evbit);
__set_bit(INPUT_PROP_DIRECT, input_device->propbit);
input_mt_init_slots(input_device, (MAX_CONTACTS+1),0);
#else
input_set_abs_params(input_device,ABS_MT_TRACKING_ID, 0, (MAX_CONTACTS+1), 0, 0);
set_bit(EV_ABS, input_device->evbit);
set_bit(EV_KEY, input_device->evbit);
__set_bit(INPUT_PROP_DIRECT, input_device->propbit);
input_device->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
#endif
set_bit(ABS_MT_POSITION_X, input_device->absbit);
set_bit(ABS_MT_POSITION_Y, input_device->absbit);
set_bit(ABS_MT_TOUCH_MAJOR, input_device->absbit);
set_bit(ABS_MT_WIDTH_MAJOR, input_device->absbit);
input_set_abs_params(input_device,ABS_MT_POSITION_X, 0, ts->screen_max_x, 0, 0);
input_set_abs_params(input_device,ABS_MT_POSITION_Y, 0, ts->screen_max_y, 0, 0);
input_set_abs_params(input_device,ABS_MT_TOUCH_MAJOR, 0, PRESS_MAX, 0, 0);
input_set_abs_params(input_device,ABS_MT_WIDTH_MAJOR, 0, 200, 0, 0);
ts->wq = create_singlethread_workqueue("kworkqueue_ts");
if (!ts->wq) {
dev_err(&client->dev, "Could not create workqueue\n");
goto error_wq_create;
}
flush_workqueue(ts->wq);
INIT_WORK(&ts->work, gslX680_ts_worker);
rc = input_register_device(input_device);
if (rc)
goto error_unreg_device;
return 0;
error_unreg_device:
destroy_workqueue(ts->wq);
error_wq_create:
input_free_device(input_device);
error_alloc_dev:
kfree(ts->touch_data);
return rc;
}
static int gsl_ts_suspend(struct device *dev)
{
struct gsl_ts *ts = dev_get_drvdata(dev);
#ifdef SLEEP_CLEAR_POINT
#ifdef REPORT_DATA_ANDROID_4_0
int i;
#endif
#endif
disable_irq_nosync(ts->irq);
gslX680_shutdown_low();
#ifdef SLEEP_CLEAR_POINT
msleep(10);
#ifdef REPORT_DATA_ANDROID_4_0
for(i = 1; i <= MAX_CONTACTS ;i ++)
{
input_mt_slot(ts->input, i);
input_report_abs(ts->input, ABS_MT_TRACKING_ID, -1);
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
}
#else
input_mt_sync(ts->input);
#endif
input_sync(ts->input);
msleep(10);
report_data(ts, 1, 1, 10, 1);
input_sync(ts->input);
#endif
return 0;
}
static int gsl_ts_resume(struct device *dev)
{
struct gsl_ts *ts = dev_get_drvdata(dev);
queue_work(ts->wq, &ts->resume_work);
return 0;
}
static int gsl_ts_early_suspend(struct tp_device *tp_d)
{
struct gsl_ts *ts = container_of(tp_d, struct gsl_ts, tp);
gsl_ts_suspend(&ts->client->dev);
return 0;
}
static int gsl_ts_late_resume(struct tp_device *tp_d)
{
struct gsl_ts *ts = container_of(tp_d, struct gsl_ts, tp);
gsl_ts_resume(&ts->client->dev);
return 0;
}
static void gsl_download_fw_work(struct work_struct *work)
{
struct gsl_ts *ts = dev_get_drvdata(&gsl_client->dev);
clr_reg(ts->client);
reset_chip(ts->client);
gsl_load_fw(ts->client);
startup_chip(ts->client);
reset_chip(ts->client);
startup_chip(ts->client);
}
static void gsl_resume_work(struct work_struct *work)
{
struct gsl_ts *ts = dev_get_drvdata(&gsl_client->dev);
#ifdef SLEEP_CLEAR_POINT
#ifdef REPORT_DATA_ANDROID_4_0
int i;
#endif
#endif
gslX680_shutdown_high();
msleep(20);
//reset_chip(ts->client);
//startup_chip(ts->client);
check_mem_data(ts->client);
check_mem_data(ts->client);
#ifdef SLEEP_CLEAR_POINT
#ifdef REPORT_DATA_ANDROID_4_0
for(i =1;i<=MAX_CONTACTS;i++)
{
input_mt_slot(ts->input, i);
input_report_abs(ts->input, ABS_MT_TRACKING_ID, -1);
input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
}
#else
input_mt_sync(ts->input);
#endif
input_sync(ts->input);
#endif
enable_irq(ts->irq);
}
static int gsl_ts_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device_node *np = client->dev.of_node;
enum of_gpio_flags wake_flags, irq_flags;
struct gsl_ts *ts;
int rc;
int gsl_chip_id = 0;
int i,ret;
printk("GSLX680 Enter %s\n", __func__);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_err(&client->dev, "I2C functionality not supported\n");
return -ENODEV;
}
ts = kzalloc(sizeof(*ts), GFP_KERNEL);
if (!ts)
return -ENOMEM;
ts->client = client;
i2c_set_clientdata(client, ts);
ts->device_id = id->driver_data;
of_property_read_u32(np,"screen_max_x",&(ts->screen_max_x));
of_property_read_u32(np,"screen_max_y",&(ts->screen_max_y));
dev_info(&ts->client->dev, "[tp-gsl] screen_max_x =[%d] \n",ts->screen_max_x);
dev_info(&ts->client->dev, "[tp-gsl] screen_max_y =[%d] \n",ts->screen_max_y);
of_property_read_u32(np, "revert_x", &revert_x);
of_property_read_u32(np, "revert_y", &revert_y);
of_property_read_u32(np, "revert_xy", &revert_xy);
dev_info(&ts->client->dev, "[tp-gsl] revert_x =[%d] \n",revert_x);
dev_info(&ts->client->dev, "[tp-gsl] revert_y =[%d] \n",revert_y);
dev_info(&ts->client->dev, "[tp-gsl] revert_xy =[%d] \n",revert_xy);
ts->irq_pin=of_get_named_gpio_flags(np, "touch-gpio", 0, &irq_flags);
ts->wake_pin=of_get_named_gpio_flags(np, "reset-gpio", 0, &wake_flags);
ret = of_property_read_u32(np, "chip_id", &gsl_chip_id);
if(ret)
gsl_chip_id = GSL680;
dev_info(&ts->client->dev, "[tp-gsl] gsl_chip_id =[%d] \n",gsl_chip_id);
for(i=0; i<ARRAY_SIZE(gsl_chip_info); i++) {
if (gsl_chip_info[i].chip_id == gsl_chip_id) {
ts->gsl_chip_info = &gsl_chip_info[i];
break;
}
}
if (gpio_is_valid(ts->wake_pin)) {
rc = devm_gpio_request_one(&ts->client->dev, ts->wake_pin, (wake_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH, "gslX680 wake pin");
if (rc != 0) {
dev_err(&ts->client->dev, "gslX680 wake pin error\n");
return -EIO;
}
g_wake_pin = ts->wake_pin;
} else {
dev_info(&ts->client->dev, "wake pin invalid\n");
}
if (gpio_is_valid(ts->irq_pin)) {
rc = devm_gpio_request_one(&ts->client->dev, ts->irq_pin, (irq_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH, "gslX680 irq pin");
if (rc != 0) {
dev_err(&ts->client->dev, "gslX680 irq pin error\n");
return -EIO;
}
g_irq_pin = ts->irq_pin;
} else {
dev_info(&ts->client->dev, "irq pin invalid\n");
}
INIT_WORK(&ts->download_fw_work, gsl_download_fw_work);
INIT_WORK(&ts->resume_work, gsl_resume_work);
gslX680_init();
rc = gslX680_ts_init(client, ts);
if (rc < 0) {
dev_err(&client->dev, "GSLX680 init failed\n");
goto error_mutex_destroy;
}
gsl_client = client;
init_chip(ts->client);
check_mem_data(ts->client);
ts->irq=gpio_to_irq(ts->irq_pin); //If not defined in client
if (ts->irq)
{
rc = devm_request_threaded_irq(&client->dev, ts->irq, NULL, gsl_ts_irq, irq_flags | IRQF_ONESHOT, client->name, ts);
if (rc != 0) {
dev_err(&client->dev, "Cannot allocate ts INT!ERRNO:%d\n", rc);
goto error_req_irq_fail;
}
disable_irq(ts->irq);
}
else
{
dev_err(&client->dev, "gsl x680 irq req fail\n");
goto error_req_irq_fail;
}
/* create debug attribute */
#ifdef TPD_PROC_DEBUG
proc_create(GSL_CONFIG_PROC_FILE,0666,NULL,&gsl_seq_fops);
gsl_proc_flag = 0;
#endif
gpio_set_value(ts->irq_pin, 0);
enable_irq(ts->irq);
ts->tp.tp_resume = gsl_ts_late_resume;
ts->tp.tp_suspend = gsl_ts_early_suspend;
tp_register_fb(&ts->tp);
return 0;
//exit_set_irq_mode:
error_req_irq_fail:
free_irq(ts->irq, ts);
error_mutex_destroy:
input_free_device(ts->input);
kfree(ts);
return rc;
}
static int gsl_ts_remove(struct i2c_client *client)
{
struct gsl_ts *ts = i2c_get_clientdata(client);
device_init_wakeup(&client->dev, 0);
cancel_work_sync(&ts->work);
free_irq(ts->irq, ts);
destroy_workqueue(ts->wq);
input_unregister_device(ts->input);
kfree(ts->touch_data);
kfree(ts);
return 0;
}
static struct of_device_id gsl_ts_ids[] = {
{.compatible = "gslX680-pad"},
{}
};
static const struct i2c_device_id gsl_ts_id[] = {
{GSLX680_I2C_NAME, 0},
{}
};
MODULE_DEVICE_TABLE(i2c, gsl_ts_id);
#if !defined(CONFIG_DRM_FBDEV_EMULATION) && defined(CONFIG_PM)
static const struct dev_pm_ops gsl_pm_ops = {
.suspend = gsl_ts_suspend,
.resume = gsl_ts_resume,
};
#endif
static struct i2c_driver gsl_ts_driver = {
.driver = {
.name = GSLX680_I2C_NAME,
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(gsl_ts_ids),
#if !defined(CONFIG_DRM_FBDEV_EMULATION) && defined(CONFIG_PM)
.pm = &gsl_pm_ops,
#endif
},
.probe = gsl_ts_probe,
.remove = gsl_ts_remove,
.id_table = gsl_ts_id,
};
static int __init gsl_ts_init(void)
{
int ret;
ret = i2c_add_driver(&gsl_ts_driver);
return ret;
}
static void __exit gsl_ts_exit(void)
{
i2c_del_driver(&gsl_ts_driver);
return;
}
module_init(gsl_ts_init);
module_exit(gsl_ts_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("GSLX680 touchscreen controller driver");
MODULE_AUTHOR("Guan Yuwei, guanyuwei@basewin.com");
MODULE_ALIAS("platform:gsl_ts");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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