1131 lines
27 KiB
C
1131 lines
27 KiB
C
/*
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* drivers/input/touchscreen/gslX680.c
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*
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* Copyright (c) 2012 Shanghai Basewin
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* Guan Yuwei<guanyuwei@basewin.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/hrtimer.h>
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#include <linux/i2c.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/platform_device.h>
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#include <linux/async.h>
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#include <linux/irq.h>
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#include <linux/workqueue.h>
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#include <linux/proc_fs.h>
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#include <linux/input/mt.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include "tp_suspend.h"
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#include "gslx680_firefly.h"
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#define REPORT_DATA_ANDROID_4_0
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#define SLEEP_CLEAR_POINT
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#ifdef FILTER_POINT
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#define FILTER_MAX 9
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#endif
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#define GSLX680_I2C_NAME "gslX680"
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#define GSL_DATA_REG 0x80
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#define GSL_STATUS_REG 0xe0
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#define GSL_PAGE_REG 0xf0
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#define PRESS_MAX 255
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#define MAX_FINGERS 10
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#define MAX_CONTACTS 10
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#define DMA_TRANS_LEN 0x20
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#define GPIO_LOW 0
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#define GPIO_HIGH 1
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/*#define TPD_PROC_DEBUG*/
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#ifdef TPD_PROC_DEBUG
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#include <linux/uaccess.h>
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static struct proc_dir_entry *gsl_config_proc;
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#define GSL_CONFIG_PROC_FILE "gsl_config"
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#define CONFIG_LEN 31
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static char gsl_read[CONFIG_LEN];
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static u8 gsl_data_proc[8] = {0};
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static u8 gsl_proc_flag;
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#endif
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#ifdef GSLX680_COMPATIBLE
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static char chip_type = 0x36;
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#endif
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static char is_noid_version;
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static struct i2c_client *gsl_client;
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#define I2C_SPEED (200 * 1000)
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#ifdef HAVE_TOUCH_KEY
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static u16 key;
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static int key_state_flag;
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struct key_data {
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u16 key;
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u16 x_min;
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u16 x_max;
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u16 y_min;
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u16 y_max;
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};
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const u16 key_array[] = {
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KEY_BACK,
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KEY_HOME,
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KEY_MENU,
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KEY_SEARCH,
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};
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#define MAX_KEY_NUM ARRAY_SIZE(key_array)
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struct key_data gsl_key_data[MAX_KEY_NUM] = {
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{KEY_BACK, 2048, 2048, 2048, 2048},
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{KEY_HOME, 2048, 2048, 2048, 2048},
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{KEY_MENU, 2048, 2048, 2048, 2048},
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{KEY_SEARCH, 2048, 2048, 2048, 2048},
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};
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#endif
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struct gsl_ts_data {
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u8 x_index;
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u8 y_index;
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u8 z_index;
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u8 id_index;
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u8 touch_index;
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u8 data_reg;
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u8 status_reg;
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u8 data_size;
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u8 touch_bytes;
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u8 update_data;
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u8 touch_meta_data;
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u8 finger_size;
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};
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static struct gsl_ts_data devices[] = {
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{
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.x_index = 6,
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.y_index = 4,
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.z_index = 5,
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.id_index = 7,
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.data_reg = GSL_DATA_REG,
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.status_reg = GSL_STATUS_REG,
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.update_data = 0x4,
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.touch_bytes = 4,
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.touch_meta_data = 4,
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.finger_size = 70,
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},
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};
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struct gsl_ts {
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struct i2c_client *client;
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struct input_dev *input;
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struct work_struct work;
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struct workqueue_struct *wq;
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struct gsl_ts_data *dd;
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u8 *touch_data;
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u8 device_id;
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int irq;
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int irq_pin;
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int rst_pin;
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int rst_val;
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int flip_x;
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int flip_y;
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int swap_xy;
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struct tp_device tp;
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#if defined(CONFIG_HAS_EARLYSUSPEND)
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struct early_suspend early_suspend;
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#endif
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};
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#ifdef GSL_DEBUG
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#define print_info(fmt, args...) \
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do { \
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printk(fmt, ##args); \
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} while (0)
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#else
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#define print_info(fmt, args...)
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#endif
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static u32 id_sign[MAX_CONTACTS + 1] = {0};
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static u8 id_state_flag[MAX_CONTACTS + 1] = {0};
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static u8 id_state_old_flag[MAX_CONTACTS + 1] = {0};
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static u16 x_old[MAX_CONTACTS + 1] = {0};
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static u16 y_old[MAX_CONTACTS + 1] = {0};
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static u16 x_new;
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static u16 y_new;
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static struct gsl_ts *gts;
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static int gslX680_shutdown_low(void)
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{
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if (gpio_is_valid(gts->rst_pin))
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gpio_set_value(gts->rst_pin, GPIO_LOW);
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return 0;
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}
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static int gslX680_shutdown_high(void)
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{
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if (gpio_is_valid(gts->rst_pin))
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gpio_set_value(gts->rst_pin, GPIO_HIGH);
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return 0;
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}
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static inline u16 join_bytes(u8 a, u8 b)
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{
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u16 ab = 0;
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ab = ab | a;
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ab = ab << 8 | b;
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return ab;
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}
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static u32 gsl_write_interface(struct i2c_client *client, const u8 reg, u8 *buf, u32 num)
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{
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struct i2c_msg xfer_msg[1];
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buf[0] = reg;
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xfer_msg[0].addr = client->addr;
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xfer_msg[0].len = num + 1;
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xfer_msg[0].flags = client->flags & I2C_M_TEN;
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xfer_msg[0].buf = buf;
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return i2c_transfer(client->adapter, xfer_msg, 1) == 1 ? 0 : -EFAULT;
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}
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static int gsl_ts_write(struct i2c_client *client, u8 addr, u8 *pdata, int datalen)
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{
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int ret = 0;
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u8 tmp_buf[128];
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unsigned int bytelen = 0;
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if (datalen > 125)
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return -1;
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tmp_buf[0] = addr;
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bytelen++;
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if (datalen != 0 && pdata != NULL) {
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memcpy(&tmp_buf[bytelen], pdata, datalen);
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bytelen += datalen;
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}
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ret = i2c_master_send(client, tmp_buf, bytelen);
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return ret;
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}
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static int gsl_ts_read(struct i2c_client *client, u8 addr, u8 *pdata, unsigned int datalen)
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{
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int ret = 0;
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if (datalen > 126)
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return -1;
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ret = gsl_ts_write(client, addr, NULL, 0);
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if (ret < 0)
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return ret;
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return i2c_master_recv(client, pdata, datalen);
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}
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#ifdef GSLX680_COMPATIBLE
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static void judge_chip_type(struct i2c_client *client)
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{
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u8 read_buf[4] = {0, 0, 0, 0};
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printk("org chip_type=%x\n", chip_type);
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msleep(50);
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gsl_ts_read(client, 0xfc, read_buf, sizeof(read_buf));
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if (read_buf[2] != 0x36 && read_buf[2] != 0x88) {
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msleep(50);
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gsl_ts_read(client, 0xfc, read_buf, sizeof(read_buf));
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}
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if (read_buf[2] == 0x36) {
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chip_type = 0x36;
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is_noid_version = 1;
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} else {
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chip_type = 0x88;
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is_noid_version = 0;
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}
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print_info("chip_type=%x, reg=%x\n", chip_type, read_buf[2]);
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}
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#endif
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static __inline__ void fw2buf(u8 *buf, const u32 *fw)
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{
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u32 *u32_buf = (int *)buf;
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*u32_buf = *fw;
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}
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static void gsl_load_fw(struct i2c_client *client)
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{
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u8 buf[DMA_TRANS_LEN * 4 + 1] = {0};
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u8 send_flag = 1;
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u8 *cur = buf + 1;
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u32 source_line = 0;
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u32 source_len = 0;
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const struct fw_data *ptr_fw = NULL;
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#ifdef GSLX680_COMPATIBLE
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if (0x36 == chip_type) {
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ptr_fw = GSL3680B_FW;
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source_len = ARRAY_SIZE(GSL3680B_FW);
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}
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#endif
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for (source_line = 0; source_line < source_len; source_line++) {
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/* init page trans, set the page val */
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if (GSL_PAGE_REG == ptr_fw[source_line].offset) {
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fw2buf(cur, &ptr_fw[source_line].val);
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gsl_write_interface(client, GSL_PAGE_REG, buf, 4);
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send_flag = 1;
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} else {
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if (1 == send_flag % (DMA_TRANS_LEN < 0x20 ? DMA_TRANS_LEN : 0x20))
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buf[0] = (u8)ptr_fw[source_line].offset;
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fw2buf(cur, &ptr_fw[source_line].val);
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cur += 4;
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if (0 == send_flag % (DMA_TRANS_LEN < 0x20 ? DMA_TRANS_LEN : 0x20)) {
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gsl_write_interface(client, buf[0], buf, cur - buf - 1);
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cur = buf + 1;
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}
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send_flag++;
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}
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}
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}
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static int test_i2c(struct i2c_client *client)
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{
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u8 read_buf = 0;
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u8 write_buf = 0x12;
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int ret, rc = 1;
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ret = gsl_ts_read(client, 0xf0, &read_buf, sizeof(read_buf));
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if (ret < 0)
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rc--;
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msleep(2);
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ret = gsl_ts_write(client, 0xf0, &write_buf, sizeof(write_buf));
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msleep(2);
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ret = gsl_ts_read(client, 0xf0, &read_buf, sizeof(read_buf));
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if (ret < 0)
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rc--;
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return rc;
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}
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static void startup_chip(struct i2c_client *client)
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{
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u8 tmp = 0x00;
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#ifdef GSL_NOID_VERSION
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if (is_noid_version)
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gsl_DataInit(gsl_config_data_id_3680B);
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#endif
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gsl_ts_write(client, 0xe0, &tmp, 1);
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msleep(10);
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}
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static void reset_chip(struct i2c_client *client)
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{
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u8 tmp = 0x88;
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u8 buf[4] = {0x00};
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gsl_ts_write(client, 0xe0, &tmp, sizeof(tmp));
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msleep(20);
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tmp = 0x04;
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gsl_ts_write(client, 0xe4, &tmp, sizeof(tmp));
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msleep(10);
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gsl_ts_write(client, 0xbc, buf, sizeof(buf));
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msleep(10);
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}
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static void clr_reg(struct i2c_client *client)
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{
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u8 write_buf[4] = {0};
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write_buf[0] = 0x88;
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gsl_ts_write(client, 0xe0, &write_buf[0], 1);
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msleep(20);
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write_buf[0] = 0x03;
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gsl_ts_write(client, 0x80, &write_buf[0], 1);
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msleep(5);
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write_buf[0] = 0x04;
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gsl_ts_write(client, 0xe4, &write_buf[0], 1);
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msleep(5);
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write_buf[0] = 0x00;
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gsl_ts_write(client, 0xe0, &write_buf[0], 1);
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msleep(20);
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}
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static void init_chip(struct i2c_client *client)
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{
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int rc;
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gslX680_shutdown_low();
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msleep(20);
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gslX680_shutdown_high();
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msleep(20);
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rc = test_i2c(client);
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if (rc < 0) {
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print_info("------gslX680 test_i2c error------\n");
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return;
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}
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clr_reg(client);
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reset_chip(client);
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gsl_load_fw(client);
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startup_chip(client);
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reset_chip(client);
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startup_chip(client);
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}
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static void check_mem_data(struct i2c_client *client)
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{
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u8 read_buf[4] = {0};
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msleep(30);
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gsl_ts_read(client, 0xb0, read_buf, sizeof(read_buf));
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if (read_buf[3] != 0x5a || read_buf[2] != 0x5a || read_buf[1] != 0x5a || read_buf[0] != 0x5a)
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init_chip(client);
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}
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#ifdef TPD_PROC_DEBUG
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static int char_to_int(char ch)
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{
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if (ch >= '0' && ch <= '9')
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return (ch - '0');
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else
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return (ch - 'a' + 10);
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}
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static int gsl_config_read_proc(char *page, char **start, off_t off, int count, int *eof, void *data)
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{
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char *ptr = page;
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char temp_data[5] = {0};
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unsigned int tmp = 0;
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if ('v' == gsl_read[0] && 's' == gsl_read[1]) {
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#ifdef GSL_NOID_VERSION
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tmp = gsl_version_id();
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#else
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tmp = 0x20121215;
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#endif
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ptr += sprintf(ptr, "version:%x\n", tmp);
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} else if ('r' == gsl_read[0] && 'e' == gsl_read[1]) {
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if ('i' == gsl_read[3]) {
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tmp = (gsl_data_proc[5] << 8) | gsl_data_proc[4];
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ptr += s printf(ptr, "gsl_config_data_id[%d] = ", tmp);
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if (tmp >= 0 && tmp < ARRAY_SIZE(gsl_config_data_id_3680B)) {
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ptr += sprintf(ptr, "%d\n", gsl_config_data_id_3680B[tmp]);
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} else {
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gsl_ts_write(gsl_client, 0Xf0, &gsl_data_proc[4], 4);
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if (gsl_data_proc[0] < 0x80)
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gsl_ts_read(gsl_client, gsl_data_proc[0], temp_data, 4);
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gsl_ts_read(gsl_client, gsl_data_proc[0], temp_data, 4);
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ptr += sprintf(ptr, "offset : {0x%02x,0x", gsl_data_proc[0]);
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ptr += sprintf(ptr, "%02x", temp_data[3]);
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ptr += sprintf(ptr, "%02x", temp_data[2]);
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ptr += sprintf(ptr, "%02x", temp_data[1]);
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ptr += sprintf(ptr, "%02x};\n", temp_data[0]);
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}
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}
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*eof = 1;
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return (ptr - page);
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}
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static int gsl_config_write_proc(struct file *file, const char *buffer, unsigned long count, void *data)
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{
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u8 buf[8] = {0};
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char temp_buf[CONFIG_LEN];
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char *path_buf;
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int tmp = 0;
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int tmp1 = 0;
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print_info("[tp-gsl][%s]\n", __func__);
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if (count > 512) {
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print_info("size not match [%d:%ld]\n", CONFIG_LEN, count);
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return -EFAULT;
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}
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path_buf = devm_kzalloc(>s->client->dev, count, GFP_KERNEL);
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if (!path_buf)
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print_info("alloc path_buf memory error\n");
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if (copy_from_user(path_buf, buffer, count)) {
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print_info("copy from user fail\n");
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goto exit_write_proc_out;
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}
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memcpy(temp_buf, path_buf, (count < CONFIG_LEN ? count : CONFIG_LEN));
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print_info("[tp-gsl][%s][%s]\n", __func__, temp_buf);
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buf[3] = char_to_int(temp_buf[14]) << 4 | char_to_int(temp_buf[15]);
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buf[2] = char_to_int(temp_buf[16]) << 4 | char_to_int(temp_buf[17]);
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buf[1] = char_to_int(temp_buf[18]) << 4 | char_to_int(temp_buf[19]);
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buf[0] = char_to_int(temp_buf[20]) << 4 | char_to_int(temp_buf[21]);
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buf[7] = char_to_int(temp_buf[5]) << 4 | char_to_int(temp_buf[6]);
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buf[6] = char_to_int(temp_buf[7]) << 4 | char_to_int(temp_buf[8]);
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buf[5] = char_to_int(temp_buf[9]) << 4 | char_to_int(temp_buf[10]);
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buf[4] = char_to_int(temp_buf[11]) << 4 | char_to_int(temp_buf[12]);
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if ('v' == temp_buf[0] && 's' == temp_buf[1]) {
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memcpy(gsl_read, temp_buf, 4);
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} else if ('s' == temp_buf[0] && 't' == temp_buf[1]) {
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gsl_proc_flag = 1;
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reset_chip(gsl_client);
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} else if ('e' == temp_buf[0] && 'n' == temp_buf[1]) {
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msleep(20);
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reset_chip(gsl_client);
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startup_chip(gsl_client);
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gsl_proc_flag = 0;
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|
} else if ('r' == temp_buf[0] && 'e' == temp_buf[1]) {
|
|
memcpy(gsl_read, temp_buf, 4);
|
|
memcpy(gsl_data_proc, buf, 8);
|
|
} else if ('w' == temp_buf[0] && 'r' == temp_buf[1]) {
|
|
gsl_ts_write(gsl_client, buf[4], buf, 4);
|
|
}
|
|
#ifdef GSL_NOID_VERSION
|
|
else if ('i' == temp_buf[0] && 'd' == temp_buf[1]) {
|
|
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_3680B))
|
|
gsl_config_data_id_3680B[tmp1] = tmp;
|
|
}
|
|
#endif
|
|
exit_write_proc_out:
|
|
devm_kfree(&client->dev, path_buf);
|
|
return count;
|
|
}
|
|
#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
|
|
|
|
#ifdef HAVE_TOUCH_KEY
|
|
static void report_key(struct gsl_ts *ts, u16 x, u16 y)
|
|
{
|
|
u16 i = 0;
|
|
|
|
for (i = 0; i < MAX_KEY_NUM; i++) {
|
|
if ((gsl_key_data[i].x_min < x) && (x < gsl_key_data[i].x_max) && (gsl_key_data[i].y_min < y) && (y < gsl_key_data[i].y_max)) {
|
|
key = gsl_key_data[i].key;
|
|
input_report_key(ts->input, key, 1);
|
|
input_sync(ts->input);
|
|
key_state_flag = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void report_data(struct gsl_ts *ts, u16 x, u16 y, u8 pressure, u8 id)
|
|
{
|
|
if (ts->flip_x == 1)
|
|
x = SCREEN_MAX_X - x;
|
|
|
|
if (ts->flip_y == 1)
|
|
y = SCREEN_MAX_Y - y;
|
|
|
|
if (ts->swap_xy == 1)
|
|
swap(x, y);
|
|
|
|
print_info("#####id=%d,x=%d,y=%d######\n", id, x, y);
|
|
|
|
if (x > SCREEN_MAX_X || y > SCREEN_MAX_Y) {
|
|
#ifdef HAVE_TOUCH_KEY
|
|
report_key(ts, x, y);
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
#ifdef CONFIG_TCHIP_MACH_BACK_MUSIC
|
|
y = SCREEN_MAX_Y - y;
|
|
#endif
|
|
|
|
#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
|
|
u32 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");
|
|
goto schedule;
|
|
}
|
|
|
|
touches = ts->touch_data[ts->dd->touch_index];
|
|
print_info("-----touches: %d -----\n", touches);
|
|
#ifdef GSL_NOID_VERSION
|
|
cinfo.finger_num = touches;
|
|
print_info("tp-gsl finger_num = %d\n", cinfo.finger_num);
|
|
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]);
|
|
print_info("tp-gsl x = %d y = %d\n", cinfo.x[i], cinfo.y[i]);
|
|
}
|
|
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();
|
|
print_info("[tp-gsl] tmp1=%x\n", tmp1);
|
|
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);
|
|
print_info("tmp1=%08x,buf[0]=%02x,buf[1]=%02x,buf[2]=%02x,buf[3]=%02x\n",
|
|
tmp1, buf[0], buf[1], buf[2], buf[3]);
|
|
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 ((touches == 0) || ((id_state_old_flag[i] != 0) && (id_state_flag[i] == 0))) {
|
|
#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];
|
|
}
|
|
#ifndef REPORT_DATA_ANDROID_4_0
|
|
if (touches == 0) {
|
|
input_mt_sync(ts->input);
|
|
#ifdef HAVE_TOUCH_KEY
|
|
if (key_state_flag) {
|
|
input_report_key(ts->input, key, 0);
|
|
input_sync(ts->input);
|
|
key_state_flag = 0;
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
input_sync(ts->input);
|
|
|
|
schedule:
|
|
enable_irq(ts->irq);
|
|
}
|
|
|
|
extern void regulator_ctrl_vcc_tp(bool on);
|
|
|
|
static irqreturn_t gsl_ts_irq(int irq, void *dev_id)
|
|
{
|
|
struct gsl_ts *ts = dev_id;
|
|
|
|
print_info("========gslX680 Interrupt=========\n");
|
|
|
|
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 = devm_kzalloc(&client->dev, 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
|
|
|
|
#ifdef HAVE_TOUCH_KEY
|
|
input_device->evbit[0] = BIT_MASK(EV_KEY);
|
|
for (i = 0; i < MAX_KEY_NUM; i++)
|
|
set_bit(key_array[i], input_device->keybit);
|
|
#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, SCREEN_MAX_X, 0, 0);
|
|
input_set_abs_params(input_device, ABS_MT_POSITION_Y, 0, 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);
|
|
|
|
client->irq = gts->irq_pin;
|
|
ts->irq = client->irq;
|
|
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:
|
|
devm_kfree(&client->dev, ts->touch_data);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int rk_ts_early_suspend(struct tp_device *tp_d)
|
|
{
|
|
struct gsl_ts *ts = container_of(tp_d, struct gsl_ts, tp);
|
|
int i;
|
|
|
|
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 rk_ts_early_resume(struct tp_device *tp_d)
|
|
{
|
|
struct gsl_ts *ts = container_of(tp_d, struct gsl_ts, tp);
|
|
int i;
|
|
|
|
gslX680_shutdown_high();
|
|
msleep(20);
|
|
reset_chip(ts->client);
|
|
startup_chip(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;
|
|
}
|
|
|
|
#ifdef CONFIG_HAS_EARLYSUSPEND
|
|
static void gsl_ts_early_suspend(struct early_suspend *h)
|
|
{
|
|
struct gsl_ts *ts = container_of(h, struct gsl_ts, early_suspend);
|
|
|
|
gsl_ts_suspend(&ts->client->dev);
|
|
}
|
|
|
|
static void gsl_ts_late_resume(struct early_suspend *h)
|
|
{
|
|
struct gsl_ts *ts = container_of(h, struct gsl_ts, early_suspend);
|
|
|
|
gsl_ts_resume(&ts->client->dev);
|
|
}
|
|
#endif
|
|
|
|
static int gsl_ts_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct gsl_ts *ts;
|
|
int rc;
|
|
int timer = 3;
|
|
int ret = 0;
|
|
char buffer = 0;
|
|
struct device_node *np = client->dev.of_node;
|
|
enum of_gpio_flags rst_flags;
|
|
unsigned long irq_flags;
|
|
|
|
while (timer > 0) {
|
|
ret = i2c_master_recv(client, &buffer, 1);
|
|
if (ret >= 0)
|
|
break;
|
|
timer--;
|
|
msleep(100);
|
|
}
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
|
dev_err(&client->dev, "I2C functionality not supported\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);
|
|
if (!ts)
|
|
return -ENOMEM;
|
|
|
|
ts->client = client;
|
|
i2c_set_clientdata(client, ts);
|
|
ts->device_id = 0;
|
|
ts->tp.tp_resume = rk_ts_early_resume;
|
|
ts->tp.tp_suspend = rk_ts_early_suspend;
|
|
tp_register_fb(&ts->tp);
|
|
|
|
ts->irq_pin = of_get_named_gpio_flags(np, "touch-gpio", 0, (enum of_gpio_flags *)&irq_flags);
|
|
ts->rst_pin = of_get_named_gpio_flags(np, "reset-gpio", 0, &rst_flags);
|
|
if (of_property_read_u32(np, "flip-x", &ts->flip_x) < 0)
|
|
ts->flip_x = 0;
|
|
|
|
if (of_property_read_u32(np, "flip-y", &ts->flip_y) < 0)
|
|
ts->flip_y = 0;
|
|
|
|
if (of_property_read_u32(np, "swap-xy", &ts->swap_xy) < 0)
|
|
ts->swap_xy = 0;
|
|
|
|
if (gpio_is_valid(ts->rst_pin)) {
|
|
ts->rst_val = (rst_flags & OF_GPIO_ACTIVE_LOW) ? 0 : 1;
|
|
ret = devm_gpio_request_one(&client->dev, ts->rst_pin, (rst_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW, "goodix reset pin");
|
|
if (ret != 0) {
|
|
dev_err(&client->dev, "goodix gpio_request error\n");
|
|
return -EIO;
|
|
}
|
|
gpio_direction_output(ts->rst_pin, 0);
|
|
gpio_set_value(ts->rst_pin, GPIO_HIGH);
|
|
msleep(20);
|
|
} else {
|
|
dev_info(&client->dev, "reset pin invalid\n");
|
|
}
|
|
gts = ts;
|
|
|
|
rc = gslX680_ts_init(client, ts);
|
|
if (rc < 0) {
|
|
dev_err(&client->dev, "GSLX680 init failed\n");
|
|
goto error_mutex_destroy;
|
|
}
|
|
|
|
gsl_client = client;
|
|
|
|
#ifdef GSLX680_COMPATIBLE
|
|
judge_chip_type(ts->client);
|
|
#endif
|
|
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) {
|
|
print_info("Cannot allocate ts INT!ERRNO:%d\n", ret);
|
|
goto error_req_irq_fail;
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_HAS_EARLYSUSPEND
|
|
ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
|
|
ts->early_suspend.suspend = gsl_ts_early_suspend;
|
|
ts->early_suspend.resume = gsl_ts_late_resume;
|
|
register_early_suspend(&ts->early_suspend);
|
|
#endif
|
|
|
|
#ifdef TPD_PROC_DEBUG
|
|
gsl_config_proc = create_proc_entry(GSL_CONFIG_PROC_FILE, 0666, NULL);
|
|
if (!gsl_config_proc) {
|
|
print_info("create_proc_entry %s failed\n", GSL_CONFIG_PROC_FILE);
|
|
} else {
|
|
gsl_config_proc->read_proc = gsl_config_read_proc;
|
|
gsl_config_proc->write_proc = gsl_config_write_proc;
|
|
}
|
|
gsl_proc_flag = 0;
|
|
#endif
|
|
return 0;
|
|
|
|
error_req_irq_fail:
|
|
free_irq(ts->irq, ts);
|
|
|
|
error_mutex_destroy:
|
|
input_free_device(ts->input);
|
|
devm_kfree(&client->dev, ts);
|
|
return rc;
|
|
}
|
|
|
|
static int gsl_ts_remove(struct i2c_client *client)
|
|
{
|
|
struct gsl_ts *ts = i2c_get_clientdata(client);
|
|
|
|
#ifdef CONFIG_HAS_EARLYSUSPEND
|
|
unregister_early_suspend(&ts->early_suspend);
|
|
#endif
|
|
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);
|
|
|
|
devm_kfree(&client->dev, ts->touch_data);
|
|
devm_kfree(&client->dev, ts);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id gsl_ts_id[] = {
|
|
{GSLX680_I2C_NAME, 0},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, gsl_ts_id);
|
|
|
|
static struct of_device_id goodix_ts_dt_ids[] = {
|
|
{ .compatible = "gslX680" },
|
|
{ }
|
|
};
|
|
|
|
static struct i2c_driver gsl_ts_driver = {
|
|
.driver = {
|
|
.name = GSLX680_I2C_NAME,
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = of_match_ptr(goodix_ts_dt_ids),
|
|
},
|
|
.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);
|
|
}
|
|
|
|
module_init(gsl_ts_init);
|
|
module_exit(gsl_ts_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("GSLX680 touchscreen controller driver");
|