--- /dev/null
+/*
+ * drivers/input/touchscreen/gsl3673.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/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/gpio.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/proc_fs.h>
+#include <linux/input/mt.h>
+#include <linux/wakelock.h>
+
+#include "tp_suspend.h"
+#include <linux/of_gpio.h>
+#define GSL_DEBUG 0
+
+#define TP2680A_ID 0x88
+#define TP2680B_ID 0x82
+#ifdef GSLX680_COMPATIBLE
+static char chip_type;
+#endif
+
+#if defined(CONFIG_BOARD_TYPE_ZM1128CE)
+ extern int axp_gpio_set_value(int gpio, int io_state);
+ extern int axp_gpio_set_io(int, int);
+ #define PMU_GPIO_NUM 2
+#endif
+
+#if defined(CONFIG_TP_3680_YTG_G10077_F1)
+ #include "gsl3680b_hw1088.h"
+ #define TP_SIZE_2560X1600
+ #define Y_POL
+#elif defined(CONFIG_TP_3680_ZM97F_DRFPC_V10)
+ #include "gsl3680b_zm97f.h"
+ #define HAVE_TOUCH_KEY
+#elif defined(CONFIG_TP_3680_F_WGJ)
+ #include "gsl3680_tab9689.h"
+ #define TP_SIZE_800X1280
+ #define X_POL
+ #if defined(CONFIG_BOARD_TYPE_TAB8010_8d)
+ #define Y_POL
+ #endif
+#elif defined(CONFIG_TP_3680_TAB106)
+ #include "gsl3680_tab106.h"
+ #define TP_SIZE_1366X768
+ #define Y_POL
+#elif defined(CONFIG_TOUCHSCREEN_GSL3673)
+ #include "gsl3673.h"
+#else
+ #include "gsl3680b_zm97f.h"
+ #define HAVE_TOUCH_KEY
+#endif
+
+#ifdef TP_SIZE_1024X600
+ #define SCREEN_MAX_X 1024
+ #define SCREEN_MAX_Y 600
+#elif defined(TP_SIZE_1024X768)
+ #define SCREEN_MAX_X 1024
+ #define SCREEN_MAX_Y 768
+#elif defined(TP_SIZE_768X1024)
+ #define SCREEN_MAX_X 768
+ #define SCREEN_MAX_Y 1024
+#elif defined(TP_SIZE_800X1280)
+ #define SCREEN_MAX_X 800
+ #define SCREEN_MAX_Y 1280
+#elif defined(TP_SIZE_2560X1600)
+ #define SCREEN_MAX_X 2560
+ #define SCREEN_MAX_Y 1600
+#elif defined(TP_SIZE_1366X768)
+ #define SCREEN_MAX_X 1366
+ #define SCREEN_MAX_Y 768
+#else
+ #define SCREEN_MAX_X 2048
+ #define SCREEN_MAX_Y 1536
+#endif
+#define REPORT_DATA_ANDROID_4_0
+#define SLEEP_CLEAR_POINT
+
+#ifdef FILTER_POINT
+#define FILTER_MAX 9
+#endif
+
+#define GSL3673_I2C_NAME "gsl3673"
+#define GSL3673_I2C_ADDR 0x40
+
+#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>
+#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;
+#endif
+#define PRESS_MAX 255
+#define MAX_FINGERS 10
+#define MAX_CONTACTS 10
+#define DMA_TRANS_LEN 0x20
+#ifdef GSL_MONITOR
+static struct delayed_work gsl_monitor_work;
+static struct workqueue_struct *gsl_monitor_workqueue;
+static u8 int_1st[4] = {0};
+static u8 int_2nd[4] = {0};
+static char b0_counter;
+static char bc_counter;
+static char i2c_lock_flag;
+#endif
+
+static struct gsl_ts *this_ts;
+static struct i2c_client *gsl_client;
+#define WRITE_I2C_SPEED 350000
+#define I2C_SPEED 200000
+#define CLOSE_TP_POWER 0
+
+#ifdef HAVE_TOUCH_KEY
+static u16 key;
+static int key_state_flag;
+struct key_data {
+ u16 key;
+ u16 x_min;
+ u16 x_max;
+ u16 y_min;
+ u16 y_max;
+};
+
+const u16 key_array[] = {
+ KEY_HOMEPAGE,
+ KEY_BACK,
+ KEY_MENU,
+ KEY_SEARCH,
+};
+
+#define MAX_KEY_NUM ARRAY_SIZE(key_array)
+
+struct key_data gsl_key_data[MAX_KEY_NUM] = {
+ {KEY_HOMEPAGE, 860, 880, 1550, 1570},
+ {KEY_BACK, 2048, 2048, 2048, 2048},
+ {KEY_MENU, 2048, 2048, 2048, 2048},
+ {KEY_SEARCH, 2048, 2048, 2048, 2048},
+};
+#endif
+
+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 rst;
+ struct tp_device tp;
+};
+
+#if 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;
+static u16 y_new;
+
+static int gsl3673_init(void)
+{
+ struct device_node *np = gsl_client->dev.of_node;
+ enum of_gpio_flags rst_flags;
+ unsigned long irq_flags;
+
+ this_ts->irq = of_get_named_gpio_flags(np, "irq_gpio_number", 0,
+ (enum of_gpio_flags *)&irq_flags);
+ this_ts->rst = of_get_named_gpio_flags(np, "rst_gpio_number", 0,
+ &rst_flags);
+ if (devm_gpio_request(&this_ts->client->dev, this_ts->rst, NULL) != 0) {
+ dev_err(&this_ts->client->dev, "gpio_request this_ts->rst error\n");
+ return -EIO;
+ }
+ gpio_direction_output(this_ts->rst, 0);
+ gpio_set_value(this_ts->rst, 1);
+ return 0;
+}
+
+static int gsl3673_shutdown_low(void)
+{
+ if (this_ts->rst > 1)
+ gpio_set_value(this_ts->rst, 0);
+ return 0;
+}
+
+static int gsl3673_shutdown_high(void)
+{
+ if (this_ts->rst > 1)
+ gpio_set_value(this_ts->rst, 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;
+
+ 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) {
+ print_info("%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) {
+ print_info("%s too big datalen = %d!\n", __func__, datalen);
+ return -1;
+ }
+ ret = gsl_ts_write(client, addr, NULL, 0);
+ if (ret < 0) {
+ print_info("%s set data address fail!\n", __func__);
+ return ret;
+ }
+ return i2c_master_recv(client, pdata, datalen);
+}
+
+#ifdef GSLX680_COMPATIBLE
+static void judge_chip_type(struct i2c_client *client)
+{
+ u8 read_buf[4] = {0};
+
+ msleep(50);
+ gsl_ts_read(client, 0xfc, read_buf, sizeof(read_buf));
+ if (read_buf[2] != 0x36 && read_buf[2] != 0x88) {
+ msleep(50);
+ gsl_ts_read(client, 0xfc, read_buf, sizeof(read_buf));
+ }
+ print_info("leaf ggggg buf0 =%x %x %x %x\n",
+ read_buf[0], read_buf[1], read_buf[2], read_buf[3]);
+ chip_type = read_buf[2];
+}
+#endif
+
+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 const *ptr_fw;
+
+#ifdef GSLX680_COMPATIBLE
+ if (chip_type == TP2680A_ID) {
+ ptr_fw = GSL2680A_FW;
+ source_len = ARRAY_SIZE(GSL2680A_FW);
+ } else {
+ ptr_fw = GSL2680B_FW;
+ source_len = ARRAY_SIZE(GSL2680B_FW);
+ }
+#else
+ ptr_fw = GSL3673_FW;
+ source_len = ARRAY_SIZE(GSL3673_FW);
+#endif
+ for (source_line = 0; source_line < source_len; source_line++) {
+ if (ptr_fw[source_line].offset == GSL_PAGE_REG) {
+ fw2buf(cur, &ptr_fw[source_line].val);
+ gsl_write_interface(client, GSL_PAGE_REG, buf, 4);
+ 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);
+ 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--;
+ msleep(2);
+ ret = gsl_ts_write(client, 0xf0, &write_buf, sizeof(write_buf));
+ msleep(2);
+ ret = gsl_ts_read(client, 0xf0, &read_buf, sizeof(read_buf));
+ if (ret < 0)
+ rc--;
+ return rc;
+}
+
+static void startup_chip(struct i2c_client *client)
+{
+ u8 tmp = 0x00;
+
+#ifdef GSL_NOID_VERSION
+ gsl_DataInit(gsl_config_data_id_3673);
+#endif
+ gsl_ts_write(client, 0xe0, &tmp, 1);
+ mdelay(5);
+}
+
+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));
+ mdelay(5);
+}
+
+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 int init_chip(struct i2c_client *client)
+{
+ int rc;
+
+ gsl3673_shutdown_low();
+ msleep(20);
+ gsl3673_shutdown_high();
+ msleep(20);
+ rc = test_i2c(client);
+ if (rc < 0) {
+ print_info("------GSL3673 test_i2c error------\n");
+ return rc;
+ }
+ clr_reg(client);
+ reset_chip(client);
+ gsl_load_fw(client);
+ startup_chip(client);
+ reset_chip(client);
+ startup_chip(client);
+ return 0;
+}
+
+static int check_mem_data(struct i2c_client *client)
+{
+ u8 read_buf[4] = {0};
+ int rc;
+
+ mdelay(10);
+ 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) {
+ print_info("#########check mem read 0xb0 = %x %x %x %x #########\n",
+ read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
+ rc = init_chip(client);
+ if (rc < 0)
+ return rc;
+ }
+ return 0;
+}
+
+#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_config_read_proc(struct seq_file *m, void *v)
+{
+ 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];
+ seq_printf(m, "gsl_config_data_id_3673[%d] = ", tmp);
+ if (tmp >= 0 && tmp < ARRAY_SIZE(gsl_config_data_id_3673))
+ seq_printf(m, "%d\n", gsl_config_data_id_3673[tmp]);
+#endif
+ } else {
+ gsl_ts_write(gsl_client, 0Xf0, &gsl_data_proc[4], 4);
+ if (gsl_data_proc[0] < 0x80)
+ gsl_ts_read(gsl_client, gsl_data_proc[0], temp_data, 4);
+ gsl_ts_read(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;
+}
+
+static 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;
+
+ if (count > 512) {
+ print_info("size not match [%d:%ld]\n", CONFIG_LEN, count);
+ return -EFAULT;
+ }
+ path_buf = kzalloc(count, GFP_KERNEL);
+ if (!path_buf)
+ print_info("alloc path_buf memory error\n");
+ if (copy_from_user(path_buf, buffer, count)) {
+ print_info("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]) {
+ memcpy(gsl_read, temp_buf, 4);
+ print_info("gsl version\n");
+ } else if ('s' == temp_buf[0] && 't' == temp_buf[1]) {
+ gsl_proc_flag = 1;
+ reset_chip(gsl_client);
+ } else if ('e' == temp_buf[0] && 'n' == temp_buf[1]) {
+ msleep(20);
+ reset_chip(gsl_client);
+ startup_chip(gsl_client);
+ gsl_proc_flag = 0;
+ } 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_3673))
+ gsl_config_data_id_3673[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
+
+#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)
+{
+#ifdef SWAP_XY
+ swap(x, y);
+#endif
+ if (x > SCREEN_MAX_X || y > SCREEN_MAX_Y) {
+ #ifdef HAVE_TOUCH_KEY
+ report_key(ts, x, y);
+ #endif
+ return;
+ }
+#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);
+#ifdef X_POL
+ input_report_abs(ts->input, ABS_MT_POSITION_X, SCREEN_MAX_X - x);
+#else
+ input_report_abs(ts->input, ABS_MT_POSITION_X, x);
+#endif
+#ifdef Y_POL
+ input_report_abs(ts->input, ABS_MT_POSITION_Y, (SCREEN_MAX_Y - y));
+#else
+ input_report_abs(ts->input, ABS_MT_POSITION_Y, (y));
+#endif
+ 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 gsl3673_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;
+#endif
+
+ struct gsl_ts *ts = container_of(work, struct gsl_ts, work);
+#ifdef TPD_PROC_DEBUG
+ if (gsl_proc_flag == 1)
+ goto schedule;
+#endif
+#ifdef GSL_MONITOR
+ if (i2c_lock_flag != 0)
+ goto i2c_lock_schedule;
+ else
+ i2c_lock_flag = 1;
+#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];
+#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);
+ 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 (id >= 1 && 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];
+ }
+#if 1
+ #ifdef HAVE_TOUCH_KEY
+ if (key_state_flag && touches == 0) {
+ input_report_key(ts->input, key, 0);
+ input_sync(ts->input);
+ key_state_flag = 0;
+ }
+ #endif
+#endif
+ input_sync(ts->input);
+schedule:
+#ifdef GSL_MONITOR
+ i2c_lock_flag = 0;
+i2c_lock_schedule:
+#endif
+ enable_irq(ts->irq);
+}
+
+#ifdef GSL_MONITOR
+static void gsl_monitor_worker(struct work_struct *work)
+{
+ u8 read_buf[4] = {0};
+ char init_chip_flag = 0;
+ int rc;
+
+ if (i2c_lock_flag != 0)
+ i2c_lock_flag = 1;
+ else
+ i2c_lock_flag = 1;
+ gsl_ts_read(gsl_client, 0xb0, read_buf, 4);
+ if (read_buf[3] != 0x5a || read_buf[2] != 0x5a ||
+ read_buf[1] != 0x5a || read_buf[0] != 0x5a)
+ b0_counter++;
+ else
+ b0_counter = 0;
+ if (b0_counter > 1) {
+ print_info("======read 0xb0: %x %x %x %x ======\n",
+ read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
+ init_chip_flag = 1;
+ b0_counter = 0;
+ }
+ gsl_ts_read(gsl_client, 0xb4, read_buf, 4);
+ int_2nd[3] = int_1st[3];
+ int_2nd[2] = int_1st[2];
+ int_2nd[1] = int_1st[1];
+ int_2nd[0] = int_1st[0];
+ int_1st[3] = read_buf[3];
+ int_1st[2] = read_buf[2];
+ int_1st[1] = read_buf[1];
+ int_1st[0] = read_buf[0];
+ if (int_1st[3] == int_2nd[3] && int_1st[2] == int_2nd[2] &&
+ int_1st[1] == int_2nd[1] && int_1st[0] == int_2nd[0]) {
+ print_info(
+ "======int_1st: %x %x %x %x ,int_2nd: %x %x %x %x ======\n",
+ int_1st[3], int_1st[2], int_1st[1], int_1st[0],
+ int_2nd[3], int_2nd[2], int_2nd[1], int_2nd[0]);
+ init_chip_flag = 1;
+ }
+ gsl_ts_read(gsl_client, 0xbc, read_buf, 4);
+ if (read_buf[3] != 0 || read_buf[2] != 0 ||
+ read_buf[1] != 0 || read_buf[0] != 0)
+ bc_counter++;
+ else
+ bc_counter = 0;
+ if (bc_counter > 1) {
+ print_info("======read 0xbc: %x %x %x %x======\n",
+ read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
+ init_chip_flag = 1;
+ bc_counter = 0;
+ }
+ if (init_chip_flag) {
+ rc = init_chip(gsl_client);
+ if (rc < 0)
+ return;
+ }
+ i2c_lock_flag = 0;
+}
+#endif
+
+static irqreturn_t gsl_ts_irq(int irq, void *dev_id)
+{
+ struct gsl_ts *ts = (struct gsl_ts *)dev_id;
+
+ disable_irq_nosync(ts->irq);
+ if (!work_pending(&ts->work))
+ queue_work(ts->wq, &ts->work);
+ return IRQ_HANDLED;
+}
+
+static int gsl3673_ts_init(struct i2c_client *client, struct gsl_ts *ts)
+{
+ struct input_dev *input_device;
+ int rc = 0;
+ #ifdef HAVE_TOUCH_KEY
+ int i;
+ #endif
+
+ 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)
+ return -ENOMEM;
+ input_device = devm_input_allocate_device(&ts->client->dev);
+ if (!input_device) {
+ return -ENOMEM;
+ }
+ ts->input = input_device;
+ input_device->name = GSL3673_I2C_NAME;
+ input_device->id.bustype = BUS_I2C;
+ input_device->dev.parent = &client->dev;
+ input_set_drvdata(input_device, ts);
+#ifdef HAVE_TOUCH_KEY
+ for (i = 0; i < MAX_KEY_NUM; i++) {
+ input_device->evbit[i] = BIT_MASK(EV_SYN) | BIT_MASK(EV_KEY);
+ set_bit(key_array[i], input_device->keybit);
+ }
+#endif
+#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,
+ 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);
+ ts->wq = create_singlethread_workqueue("kworkqueue_ts");
+ if (!ts->wq) {
+ dev_err(&client->dev, "gsl Could not create workqueue\n");
+ return -ENOMEM;
+ }
+ flush_workqueue(ts->wq);
+ INIT_WORK(&ts->work, gsl3673_ts_worker);
+ rc = input_register_device(input_device);
+ if (rc)
+ goto error_unreg_device;
+ return 0;
+error_unreg_device:
+ destroy_workqueue(ts->wq);
+ return rc;
+}
+
+static int gsl_ts_suspend(struct device *dev)
+{
+ struct gsl_ts *ts = dev_get_drvdata(dev);
+ int i;
+
+#ifdef GSL_MONITOR
+ cancel_delayed_work_sync(&gsl_monitor_work);
+#endif
+ disable_irq_nosync(ts->irq);
+ gsl3673_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);
+ int i;
+ int rc;
+
+ gsl3673_shutdown_high();
+ mdelay(5);
+ reset_chip(ts->client);
+ startup_chip(ts->client);
+ rc = check_mem_data(ts->client);
+ if (rc < 0)
+ return rc;
+#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
+#ifdef GSL_MONITOR
+ queue_delayed_work(gsl_monitor_workqueue, &gsl_monitor_work, 300);
+#endif
+ disable_irq_nosync(ts->irq);
+ enable_irq(ts->irq);
+ 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);
+ int rc;
+
+ rc = gsl_ts_resume(&ts->client->dev);
+ return rc;
+}
+
+static int gsl_ts_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct gsl_ts *ts;
+ int rc;
+ #if defined CONFIG_BOARD_TYPE_ZM1128CE
+ axp_gpio_set_io(PMU_GPIO_NUM, 1);
+ #endif
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "gsl I2C functionality not supported\n");
+ return -ENODEV;
+ }
+ ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
+ ts->tp.tp_resume = gsl_ts_late_resume;
+ ts->tp.tp_suspend = gsl_ts_early_suspend;
+ tp_register_fb(&ts->tp);
+ ts->client = client;
+ i2c_set_clientdata(client, ts);
+ this_ts = ts;
+ gsl_client = client;
+ gsl3673_init();
+ rc = gsl3673_ts_init(client, ts);
+ if (rc < 0) {
+ dev_err(&client->dev, "gsl GSL3673 init failed\n");
+ goto error_mutex_destroy;
+ }
+#ifdef GSLX680_COMPATIBLE
+ judge_chip_type(client);
+#endif
+ rc = init_chip(ts->client);
+ if (rc < 0) {
+ dev_err(&client->dev, "gsl_probe: init_chip failed\n");
+ goto error_init_chip_fail;
+ }
+ check_mem_data(ts->client);
+ client->irq = gpio_to_irq(ts->irq);
+ rc = devm_request_irq(&client->dev, client->irq, gsl_ts_irq,
+ IRQF_TRIGGER_RISING, client->name, ts);
+ if (rc < 0) {
+ dev_err(&client->dev, "gsl_probe: request irq failed\n");
+ return rc;
+ }
+#ifdef GSL_MONITOR
+ INIT_DELAYED_WORK(&gsl_monitor_work, gsl_monitor_worker);
+ gsl_monitor_workqueue = create_singlethread_workqueue
+ ("gsl_monitor_workqueue");
+ queue_delayed_work(gsl_monitor_workqueue, &gsl_monitor_work, 1000);
+#endif
+#ifdef TPD_PROC_DEBUG
+ proc_create(GSL_CONFIG_PROC_FILE, 0644, NULL, &gsl_seq_fops);
+ gsl_proc_flag = 0;
+#endif
+ return 0;
+error_init_chip_fail:
+error_mutex_destroy:
+ tp_unregister_fb(&ts->tp);
+ return rc;
+}
+
+static int gsl_ts_remove(struct i2c_client *client)
+{
+ struct gsl_ts *ts = i2c_get_clientdata(client);
+
+#ifdef GSL_MONITOR
+ cancel_delayed_work_sync(&gsl_monitor_work);
+ destroy_workqueue(gsl_monitor_workqueue);
+#endif
+ device_init_wakeup(&client->dev, 0);
+ cancel_work_sync(&ts->work);
+ destroy_workqueue(ts->wq);
+ return 0;
+}
+
+static const struct of_device_id gsl_ts_ids[] = {
+ {.compatible = "GSL,GSL3673"},
+ { }
+};
+
+static const struct i2c_device_id gsl_ts_id[] = {
+ {GSL3673_I2C_NAME, 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, gsl_ts_id);
+
+static struct i2c_driver gsl_ts_driver = {
+ .driver = {
+ .name = GSL3673_I2C_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(gsl_ts_ids),
+ },
+ .probe = gsl_ts_probe,
+ .remove = gsl_ts_remove,
+ .id_table = gsl_ts_id,
+};
+
+static int __init gsl_ts_init(void)
+{
+ return i2c_add_driver(&gsl_ts_driver);
+}
+
+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("GSL3673 touchscreen controller driver");
+MODULE_AUTHOR("Guan Yuwei, guanyuwei@basewin.com");
+MODULE_ALIAS("platform:gsl_ts");
projects / firefly-linux-kernel-4.4.55.git / commitdiff