--- /dev/null
+/*
+ * 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/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 <asm/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;
+};
+
+#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 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 fw_data *ptr_fw;
+
+ ptr_fw = GSLX680_FW;
+ source_len = ARRAY_SIZE(GSLX680_FW);
+
+ 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
+ gsl_DataInit(gsl_config_data_id);
+#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;
+ 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;
+ }
+ clr_reg(client);
+ reset_chip(client);
+ gsl_load_fw(client);
+ startup_chip(client);
+ reset_chip(client);
+ startup_chip(client);
+}
+
+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;
+ 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<ARRAY_SIZE(gsl_config_data_id))
+ {
+ gsl_config_data_id[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 file_operations gsl_seq_fops = {
+ .open = gsl_server_list_open,
+ .read = seq_read,
+ .release = single_release,
+ .write = gsl_config_write_proc,
+ .owner = THIS_MODULE,
+};
+#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;
+
+ 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-1;
+ if(revert_y)
+ y = ts->screen_max_y-y-1;
+#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);
+ 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 REPORT_DATA_ANDROID_4_0
+ int i;
+#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);
+#ifdef REPORT_DATA_ANDROID_4_0
+ int i;
+#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);
+ return 0;
+}
+
+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;
+
+ 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);
+
+ 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);
+
+ 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");
+ }
+
+ 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);
+
+ 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);
+
+static const struct dev_pm_ops gsl_pm_ops = {
+ .suspend = gsl_ts_suspend,
+ .resume = gsl_ts_resume,
+};
+
+static struct i2c_driver gsl_ts_driver = {
+ .driver = {
+ .name = GSLX680_I2C_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(gsl_ts_ids),
+ .pm = &gsl_pm_ops,
+ },
+ .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");
projects / firefly-linux-kernel-4.4.55.git / blobdiff