/*
|
* driver/input/touchscreen/goodix_touch.c
|
*
|
* Copyright(c) 2010 Goodix Technology Corp.
|
*
|
* This software is licensed under the terms of the GNU General Public
|
* License version 2, as published by the Free Software Foundation, and
|
* may be copied, distributed, and modified under those terms.
|
*
|
* This program is distributed in the hope that it will be useful,
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
* GNU General Public License for more details.
|
*
|
* Change Date:
|
* 2010.11.11, add point_queue's definiens.
|
*
|
* 2011.03.09, rewrite point_queue's definiens.
|
*
|
* 2011.05.12, delete point_queue for Android 2.2/Android 2.3 and so on.
|
*
|
*/
|
#include <linux/i2c.h>
|
#include <linux/input.h>
|
#include "goodix_touch.h"
|
#include <linux/interrupt.h>
|
#include <linux/delay.h>
|
#include <linux/errno.h>
|
#include <linux/kernel.h>
|
#include <linux/module.h>
|
#include <linux/slab.h>
|
#include <linux/init.h>
|
#include <linux/ioport.h>
|
#include "../init-input.h"
|
#include <linux/gpio.h>
|
#include <linux/pm_runtime.h>
|
#ifdef CONFIG_PM
|
#include <linux/pm.h>
|
#endif
|
|
#define FOR_TSLIB_TEST
|
#define TEST_I2C_TRANSFER
|
|
|
#ifndef GUITAR_GT80X
|
#error The code does not match the hardware version.
|
#endif
|
|
static struct ctp_config_info config_info = {
|
.input_type = CTP_TYPE,
|
.name = NULL,
|
.int_number = 0,
|
};
|
|
struct goodix_ts_data {
|
int retry;
|
int panel_type;
|
uint8_t bad_data;
|
char phys[32];
|
struct i2c_client *client;
|
struct input_dev *input_dev;
|
uint8_t use_irq;
|
uint8_t use_shutdown;
|
uint32_t gpio_shutdown;
|
uint32_t gpio_irq;
|
uint32_t screen_width;
|
uint32_t screen_height;
|
bool is_suspended;
|
struct ts_event event;
|
struct hrtimer timer;
|
struct work_struct work;
|
int (*power)(struct goodix_ts_data *ts, int on);
|
};
|
|
static const char *f3x_ts_name = "gt82x";
|
static struct workqueue_struct *goodix_wq;
|
#define X_DIFF (800)
|
static uint8_t config_info1[114];
|
static uint8_t data_info0[] = {
|
0x0F, 0x80,
|
0x02, 0x11, 0x03, 0x12, 0x04, 0x13, 0x05, 0x14,
|
0x06, 0x15, 0x07, 0x16, 0x08, 0x17, 0x09, 0x18,
|
0x0A, 0x19, 0x0B, 0x1A, 0xFF, 0x15, 0x16, 0x17,
|
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x03, 0x0D,
|
0x04, 0x0E, 0x05, 0x0F, 0x06, 0x10, 0x07, 0x11,
|
0x08, 0x12, 0xFF, 0x0D, 0xFF, 0x0F, 0x10, 0x11,
|
0x12, 0x13, 0x0F, 0x03, 0x10, 0x88, 0x88, 0x20,
|
0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x50, 0x3C,
|
0x35, 0x03, 0x00, 0x05, 0x00, 0x03, 0x20, 0x05,
|
0x00, 0x5A, 0x5A, 0x46, 0x46, 0x08, 0x00, 0x03,
|
0x19, 0x05, 0x14, 0x10, 0x00, 0x07, 0x00, 0x00,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01
|
};
|
static uint8_t data_info1[] = {
|
0x0F, 0x80,
|
0x00, 0x0F, 0x01, 0x10, 0x02, 0x11, 0x03, 0x12,
|
0x04, 0x13, 0x05, 0x14, 0x06, 0x15, 0x07, 0x16,
|
0x08, 0x17, 0x09, 0x18, 0x0A, 0x19, 0x0B, 0x1A,
|
0x0C, 0x1B, 0x0D, 0x1C, 0x0E, 0x1D, 0x13, 0x09,
|
0x12, 0x08, 0x11, 0x07, 0x10, 0x06, 0x0F, 0x05,
|
0x0E, 0x04, 0x0D, 0x03, 0x0C, 0x02, 0x0B, 0x01,
|
0x0A, 0x00, 0x0B, 0x03, 0x10, 0x00, 0x00, 0x2C,
|
0x00, 0x00, 0x03, 0x00, 0x00, 0x02, 0x40, 0x30,
|
0x60, 0x03, 0x00, 0x05, 0x00, 0x03, 0x20, 0x05,
|
0x00, 0x66, 0x4E, 0x60, 0x49, 0x06, 0x00, 0x23,
|
0x19, 0x05, 0x14, 0x10, 0x03, 0xFC, 0x01, 0x00,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01
|
};
|
|
enum {
|
DEBUG_INIT = 1U << 0,
|
DEBUG_SUSPEND = 1U << 1,
|
DEBUG_INT_INFO = 1U << 2,
|
DEBUG_X_Y_INFO = 1U << 3,
|
DEBUG_KEY_INFO = 1U << 4,
|
DEBUG_WAKEUP_INFO = 1U << 5,
|
DEBUG_OTHERS_INFO = 1U << 6,
|
};
|
|
#define CTP_IRQ_MODE (IRQF_TRIGGER_FALLING)
|
#define CTP_NAME "gt82x"
|
#define SCREEN_MAX_X (screen_max_x)
|
#define SCREEN_MAX_Y (screen_max_y)
|
#define PRESS_MAX (255)
|
|
#define READ_TOUCH_ADDR_H 0x0F
|
#define READ_TOUCH_ADDR_L 0x40
|
|
static u32 screen_max_x;
|
static u32 screen_max_y;
|
static u32 revert_x_flag;
|
static u32 revert_y_flag;
|
static u32 exchange_x_y_flag;
|
|
static __u32 twi_id;
|
|
/* Addresses to scan */
|
|
static const unsigned short normal_i2c[2] = {0x5d, I2C_CLIENT_END};
|
static const int chip_id_value[3] = {0x13, 0x27, 0x28};
|
static uint8_t read_chip_value[3] = {0x0f, 0x7d, 0};
|
|
/*used by GT80X-IAP module */
|
static struct i2c_client *i2c_connect_client;
|
|
static void goodix_init_events(struct work_struct *work);
|
static void goodix_resume_events(struct work_struct *work);
|
static struct workqueue_struct *goodix_init_wq;
|
static struct workqueue_struct *goodix_resume_wq;
|
static DECLARE_WORK(goodix_init_work, goodix_init_events);
|
static DECLARE_WORK(goodix_resume_work, goodix_resume_events);
|
static struct goodix_ts_data *ts_init;
|
|
/*
|
* Function:
|
* Read data from the i2c slave device.
|
* Input:
|
* client:i2c device.
|
* buf[0]:operate address.
|
* buf[1]~buf[len]:read data buffer.
|
* len:operate length.
|
* Output:
|
* numbers of i2c_msgs to transfer
|
*/
|
static int i2c_read_bytes(struct i2c_client *client, uint8_t *buf, uint16_t len)
|
{
|
struct i2c_msg msgs[2];
|
int ret = -1;
|
|
msgs[0].flags = !I2C_M_RD;
|
msgs[0].addr = client->addr;
|
msgs[0].len = 2;
|
msgs[0].buf = buf;
|
|
msgs[1].flags = I2C_M_RD;
|
msgs[1].addr = client->addr;
|
msgs[1].len = len-2;
|
msgs[1].buf = buf+2;
|
|
ret = i2c_transfer(client->adapter, msgs, 2);
|
|
return ret;
|
}
|
|
/*
|
* Function:
|
* write data to the i2c slave device.
|
* Input:
|
* client:i2c device.
|
* buf[0]:operate address.
|
* buf[1]~buf[len]:write data buffer.
|
* len:operate length.
|
* Output:
|
* numbers of i2c_msgs to transfer.
|
*/
|
static int i2c_write_bytes(struct i2c_client *client, uint8_t *data, uint16_t len)
|
{
|
struct i2c_msg msg;
|
int ret = -1;
|
|
msg.flags = !I2C_M_RD;
|
msg.addr = client->addr;
|
msg.len = len;
|
msg.buf = data;
|
|
ret = i2c_transfer(client->adapter, &msg, 1);
|
|
return ret;
|
}
|
|
/*
|
* Function:
|
* write i2c end cmd.
|
* ts:
|
* client Private data structures
|
* return:
|
* Successful returns 1
|
*/
|
static s32 i2c_end_cmd(struct goodix_ts_data *ts)
|
{
|
s32 ret;
|
u8 end_cmd_data[2] = {0x80, 0x00};
|
|
ret = i2c_write_bytes(ts->client, end_cmd_data, 2);
|
|
return ret;
|
}
|
|
/**
|
* ctp_detect - Device detection callback for automatic device creation
|
* return value:
|
* = 0; success;
|
* < 0; err
|
*/
|
static int ctp_detect(struct i2c_client *client, struct i2c_board_info *info)
|
{
|
struct i2c_adapter *adapter = client->adapter;
|
int i = 0;
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
|
pr_info("======return=====\n");
|
return -ENODEV;
|
}
|
if (twi_id == adapter->nr) {
|
i2c_read_bytes(client, read_chip_value, 3);
|
pr_debug("addr:0x%x,chip_id_value:0x%x\n",
|
client->addr, read_chip_value[2]);
|
while (chip_id_value[i++]) {
|
if (read_chip_value[2] == chip_id_value[i - 1]) {
|
strlcpy(info->type, CTP_NAME, I2C_NAME_SIZE);
|
return 0;
|
}
|
}
|
pr_err("%s:I2C connection might be something wrong !\n",
|
__func__);
|
return -ENODEV;
|
} else
|
return -ENODEV;
|
}
|
|
static ssize_t gt82x_enable_show(struct device *dev,
|
struct device_attribute *attr, char *buf)
|
{
|
struct input_dev *input = to_input_dev(dev);
|
struct i2c_client *client = input_get_drvdata(input);
|
ssize_t size;
|
|
size = sprintf(buf, "%d\n", !pm_runtime_suspended(&client->dev));
|
return size;
|
}
|
|
static ssize_t gt82x_enable_store(struct device *dev,
|
struct device_attribute *attr,
|
const char *buf, size_t count)
|
{
|
unsigned long data;
|
int error;
|
struct input_dev *input = to_input_dev(dev);
|
struct i2c_client *client = input_get_drvdata(input);
|
|
error = kstrtoul(buf, 10, &data);
|
if (error)
|
return error;
|
if (data == 0)
|
pm_runtime_put_sync(&client->dev);
|
else if (data == 1)
|
pm_runtime_get_sync(&client->dev);
|
|
return count;
|
}
|
|
static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR,
|
gt82x_enable_show, gt82x_enable_store);
|
|
static struct attribute *gt82x_att_als[] = {
|
&dev_attr_enable.attr,
|
NULL
|
};
|
|
static struct attribute_group gt82x_als_gr = {
|
.attrs = gt82x_att_als
|
};
|
|
/**
|
* ctp_print_info - sysconfig print function
|
* return value:
|
*
|
*/
|
static void ctp_print_info(struct ctp_config_info info, int debug_level)
|
{
|
if (debug_level == DEBUG_INIT) {
|
pr_debug("info.ctp_used:%d\n", info.ctp_used);
|
pr_debug("info.twi_id:%d\n", info.twi_id);
|
pr_debug("info.screen_max_x:%d\n", info.screen_max_x);
|
pr_debug("info.screen_max_y:%d\n", info.screen_max_y);
|
pr_debug("info.revert_x_flag:%d\n", info.revert_x_flag);
|
pr_debug("info.revert_y_flag:%d\n", info.revert_y_flag);
|
pr_debug("info.exchange_x_y_flag:%d\n", info.exchange_x_y_flag);
|
pr_debug("info.irq_gpio_number:%d\n", info.irq_gpio.gpio);
|
pr_debug("info.wakeup_gpio_number:%d\n", info.wakeup_gpio.gpio);
|
}
|
}
|
|
/**
|
* ctp_wakeup - function
|
*
|
*/
|
static int ctp_wakeup(int status, int ms)
|
{
|
pr_debug("***CTP*** %s:status:%d, ms = %d\n", __func__, status, ms);
|
if (status == 0) {
|
if (ms == 0)
|
__gpio_set_value(config_info.wakeup_gpio.gpio, 0);
|
else {
|
__gpio_set_value(config_info.wakeup_gpio.gpio, 0);
|
msleep(ms);
|
__gpio_set_value(config_info.wakeup_gpio.gpio, 1);
|
}
|
}
|
if (status == 1) {
|
if (ms == 0)
|
__gpio_set_value(config_info.wakeup_gpio.gpio, 1);
|
else {
|
__gpio_set_value(config_info.wakeup_gpio.gpio, 1);
|
msleep(ms);
|
__gpio_set_value(config_info.wakeup_gpio.gpio, 0);
|
}
|
}
|
usleep_range(5000, 6000);
|
|
return 0;
|
}
|
|
/*
|
* Foundation
|
* i2c communication test
|
* ts:i2c client structure
|
* return:
|
* Successful :1 fail:0
|
*/
|
#ifdef CTP_STANDBY
|
static bool goodix_i2c_test(struct i2c_client *client)
|
{
|
int ret, retry;
|
uint8_t test_data[1] = {0};
|
|
for (retry = 0; retry < 5; retry++) {
|
ret = i2c_write_bytes(client, test_data, 1);
|
if (ret == 1)
|
break;
|
usleep_range(5000, 6000);
|
}
|
|
return ret == 1 ? true : false;
|
}
|
#endif
|
|
/*
|
* Function:
|
* GTP initialize function.
|
* Input:
|
* ts: i2c client private struct.
|
* Output:
|
* Executive outcomes.1---succeed.
|
*/
|
static int goodix_init_panel(struct goodix_ts_data *ts)
|
{
|
int ret = -1;
|
int i = 0;
|
|
pr_debug("init panel\n");
|
|
if (read_chip_value[2] == 0x13)
|
ret = i2c_write_bytes(ts->client, data_info0, 114);
|
else if (read_chip_value[2] == 0x28)
|
ret = i2c_write_bytes(ts->client, data_info1, 114);
|
|
i2c_end_cmd(ts);
|
usleep_range(10000, 11000);
|
pr_debug("init panel ret = %d\n", ret);
|
if (ret < 0)
|
return ret;
|
msleep(100);
|
config_info1[0] = 0x0F;
|
config_info1[1] = 0x80;
|
ret = i2c_read_bytes(ts->client, config_info1, 114);
|
for (i = 0; i < 114; i++)
|
pr_debug("i = %d config_info1[i] = %x\n", i, config_info1[i]);
|
|
usleep_range(10000, 11000);
|
|
return 1;
|
}
|
|
static s32 goodix_ts_version(struct goodix_ts_data *ts)
|
|
{
|
u8 buf[8];
|
|
buf[0] = 0x0f;
|
buf[1] = 0x7d;
|
i2c_read_bytes(ts->client, buf, 5);
|
i2c_end_cmd(ts);
|
pr_debug("PID:%02x, VID:%02x%02x\n", buf[2], buf[3], buf[4]);
|
|
return 1;
|
}
|
|
/*
|
* Function:
|
* Touch down report function.
|
* Input:
|
* ts:private data.
|
* id:tracking id.
|
* x:input x.
|
* y:input y.
|
* w:input weight.
|
* Output:
|
* None.
|
*/
|
static void goodix_touch_down(struct goodix_ts_data *ts, s32 id,
|
s32 x, s32 y, s32 w)
|
{
|
pr_debug("source data:ID:%d, X:%d, Y:%d, W:%d\n", id, x, y, w);
|
if (exchange_x_y_flag == 1)
|
swap(x, y);
|
|
if (revert_x_flag == 1)
|
x = SCREEN_MAX_X - x;
|
|
if (revert_y_flag == 1)
|
y = SCREEN_MAX_Y - y;
|
|
pr_debug("report data:ID:%d, X:%d, Y:%d, W:%d\n", id, x, y, w);
|
input_report_abs(ts->input_dev, ABS_MT_POSITION_X, x);
|
input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, y);
|
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, w);
|
input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, w);
|
input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, id);
|
input_mt_sync(ts->input_dev);
|
}
|
/*
|
* Function:
|
* Touch up report function.
|
* Input:
|
* ts:private data.
|
* Output:
|
* None.
|
*/
|
static void goodix_touch_up(struct goodix_ts_data *ts)
|
{
|
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
|
input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0);
|
input_mt_sync(ts->input_dev);
|
}
|
|
static void goodix_ts_work_func(struct work_struct *work)
|
{
|
u8 *coor_data = NULL;
|
u8 point_data[2 + 2 + 5 * MAX_FINGER_NUM + 1] = {READ_TOUCH_ADDR_H,
|
READ_TOUCH_ADDR_L};
|
u8 check_sum = 0;
|
u8 touch_num = 0;
|
u8 finger = 0;
|
u8 key_value = 0;
|
s32 input_x = 0;
|
s32 input_y = 0;
|
s32 input_w = 0;
|
s32 idx = 0;
|
s32 ret = -1;
|
struct goodix_ts_data *ts = NULL;
|
|
pr_debug("===enter %s===\n", __func__);
|
ts = container_of(work, struct goodix_ts_data, work);
|
|
ret = i2c_read_bytes(ts->client, point_data, 10);
|
finger = point_data[2];
|
touch_num = (finger & 0x01) + !!(finger & 0x02) + !!(finger & 0x04) +
|
!!(finger & 0x08) + !!(finger & 0x10);
|
if (touch_num > 1) {
|
u8 buf[25];
|
|
buf[0] = READ_TOUCH_ADDR_H;
|
buf[1] = READ_TOUCH_ADDR_L + 8;
|
ret = i2c_read_bytes(ts->client, buf, 5 * (touch_num - 1) + 2);
|
memcpy(&point_data[10], &buf[2], 5 * (touch_num - 1));
|
}
|
i2c_end_cmd(ts);
|
|
if (ret <= 0) {
|
pr_err("%s:I2C read error!", __func__);
|
goto exit_work_func;
|
}
|
|
if ((finger & 0xC0) != 0x80) {
|
pr_debug("%s:Data not ready!", __func__);
|
goto exit_work_func;
|
}
|
|
key_value = point_data[3]&0x0f;
|
if ((key_value & 0x0f) == 0x0f) {
|
if (!goodix_init_panel(ts))
|
pr_err("%s:Reload config failed!\n", __func__);
|
|
goto exit_work_func;
|
}
|
|
coor_data = &point_data[4];
|
check_sum = 0;
|
for (idx = 0; idx < 5 * touch_num; idx++)
|
check_sum += coor_data[idx];
|
|
if (check_sum != coor_data[5 * touch_num]) {
|
pr_err("%s:Check sum error!", __func__);
|
goto exit_work_func;
|
}
|
|
if (touch_num) {
|
s32 pos = 0;
|
|
for (idx = 0; idx < MAX_FINGER_NUM; idx++) {
|
if (!(finger & (0x01 << idx)))
|
continue;
|
|
input_x = coor_data[pos] << 8;
|
input_x |= coor_data[pos + 1];
|
|
input_y = coor_data[pos + 2] << 8;
|
input_y |= coor_data[pos + 3];
|
|
input_w = coor_data[pos + 4];
|
|
pos += 5;
|
|
goodix_touch_down(ts, idx, input_x, input_y, input_w);
|
}
|
} else {
|
pr_debug("Touch Release!");
|
goodix_touch_up(ts);
|
}
|
|
#if GTP_HAVE_TOUCH_KEY
|
for (idx = 0; idx < GTP_MAX_KEY_NUM; idx++)
|
input_report_key(ts->input_dev, touch_key_array[idx],
|
key_value & (0x01<<idx));
|
#endif
|
input_report_key(ts->input_dev, BTN_TOUCH, (touch_num || key_value));
|
input_sync(ts->input_dev);
|
|
exit_work_func:
|
return;
|
}
|
|
static irqreturn_t goodix_ts_irq_hanbler(int irq, void *dev_id)
|
{
|
struct goodix_ts_data *ts = (struct goodix_ts_data *)dev_id;
|
|
pr_debug("==========------TS Interrupt-----============\n");
|
queue_work(goodix_wq, &ts->work);
|
|
return IRQ_HANDLED;
|
}
|
|
static int goodix_ts_power(struct goodix_ts_data *ts, int on)
|
{
|
s32 ret = -1;
|
u8 i2c_control_buf1[3] = {0x0F, 0xF2, 0xc0};
|
u8 i2c_control_buf2[3] = {0x0F, 0xF2, 0x00};
|
|
switch (on) {
|
case 0:
|
ret = i2c_write_bytes(ts->client, i2c_control_buf1, 3);
|
i2c_end_cmd(ts);
|
break;
|
case 1:
|
ctp_wakeup(0, 100);
|
#ifdef CTP_STANDBY
|
if (standby_level == STANDBY_WITH_POWER_OFF) {
|
ret = goodix_i2c_test(ts->client);
|
if (!ret) {
|
pr_err("Warnning: I2C connection might be something wrong!\n");
|
ctp_wakeup(0, 50);
|
ret = goodix_i2c_test(ts->client);
|
if (!ret) {
|
pr_err("retry fail!\n");
|
return -1;
|
}
|
}
|
pr_info("===== goodix i2c test ok=======\n");
|
}
|
#endif
|
ret = goodix_init_panel(ts);
|
if (ret != 1) {
|
pr_err("init panel fail!\n");
|
return -1;
|
}
|
ret = i2c_write_bytes(ts->client, i2c_control_buf2, 3);
|
usleep_range(10000, 11000);
|
ret = 1;
|
break;
|
default:
|
pr_err("%s: Cant't support this command.", f3x_ts_name);
|
ret = -EINVAL;
|
break;
|
}
|
|
return ret;
|
}
|
|
static void goodix_resume_events(struct work_struct *work)
|
{
|
int ret;
|
u8 i2c_control_buf[3] = {0x0F, 0xF2, 0x00};
|
|
if (ts_init->is_suspended == false) {
|
ctp_wakeup(0, 2);
|
ret = i2c_write_bytes(ts_init->client, i2c_control_buf, 3);
|
if (ret != 1)
|
pr_err("set active mode fail!\n");
|
|
usleep_range(10000, 11000);
|
} else if (ts_init->power) {
|
ret = ts_init->power(ts_init, 1);
|
if (ret < 0)
|
pr_debug("%s power on failed\n", f3x_ts_name);
|
}
|
ret = input_set_int_enable(&(config_info.input_type), 1);
|
ts_init->is_suspended = false;
|
if (ret < 0)
|
pr_debug("%s irq enable failed\n", f3x_ts_name);
|
}
|
|
static int goodix_ts_suspend(struct device *dev)
|
{
|
int ret;
|
struct goodix_ts_data *ts = dev_get_drvdata(dev);
|
|
pr_debug("CONFIG_PM:enter earlysuspend: goodix_ts_suspend.\n");
|
if (pm_runtime_suspended(dev))
|
return 0;
|
|
if (ts->is_suspended == false) {
|
flush_workqueue(goodix_resume_wq);
|
ret = input_set_int_enable(&(config_info.input_type), 0);
|
if (ret < 0)
|
pr_debug("%s irq disable failed\n", f3x_ts_name);
|
|
ret = cancel_work_sync(&ts->work);
|
flush_workqueue(goodix_wq);
|
if (ts->power) {
|
ret = ts->power(ts, 0);
|
if (ret < 0)
|
pr_debug("%s power off failed\n", f3x_ts_name);
|
}
|
ts->is_suspended = true;
|
}
|
return 0;
|
}
|
|
static int goodix_ts_resume(struct device *dev)
|
{
|
struct goodix_ts_data *ts = dev_get_drvdata(dev);
|
|
pr_debug("CONFIG_PM:enter laterresume: goodix_ts_resume.\n");
|
if (pm_runtime_suspended(dev))
|
return 0;
|
if (ts->is_suspended == true)
|
queue_work(goodix_resume_wq, &goodix_resume_work);
|
|
return 0;
|
}
|
|
static void goodix_init_events(struct work_struct *work)
|
{
|
int ret = 0;
|
|
ctp_wakeup(0, 100);
|
ret = goodix_init_panel(ts_init);
|
if (!ret)
|
pr_err("init panel fail!\n");
|
else
|
pr_debug("init panel succeed!\n");
|
|
config_info.dev = &(ts_init->input_dev->dev);
|
ret = input_request_int(&(config_info.input_type), goodix_ts_irq_hanbler,
|
CTP_IRQ_MODE, ts_init);
|
if (ret)
|
pr_info("goodix_probe: request irq failed\n");
|
}
|
|
static int goodix_ts_probe(struct i2c_client *client,
|
const struct i2c_device_id *id)
|
{
|
struct goodix_ts_data *ts;
|
int ret = 0;
|
|
pr_debug("=============GT82x Probe==================\n");
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
dev_err(&client->dev, "System need I2C function.\n");
|
ret = -ENODEV;
|
goto err_check_functionality_failed;
|
}
|
|
ts = kzalloc(sizeof(*ts), GFP_KERNEL);
|
if (ts == NULL) {
|
ret = -ENOMEM;
|
goto err_alloc_data_failed;
|
}
|
|
|
i2c_connect_client = client; /* used by Guitar Updating */
|
|
INIT_WORK(&ts->work, goodix_ts_work_func);
|
ts->client = client;
|
i2c_set_clientdata(ts->client, ts);
|
|
ts->input_dev = input_allocate_device();
|
if (ts->input_dev == NULL) {
|
ret = -ENOMEM;
|
dev_dbg(&client->dev, "Failed to allocate input device\n");
|
goto err_input_dev_alloc_failed;
|
}
|
|
ts->input_dev->evbit[0] = BIT_MASK(EV_SYN) | BIT_MASK(EV_KEY)
|
| BIT_MASK(EV_ABS);
|
|
#ifndef GOODIX_MULTI_TOUCH
|
ts->input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
|
ts->input_dev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
|
input_set_abs_params(ts->input_dev, ABS_X, 0, SCREEN_MAX_X, 0, 0);
|
input_set_abs_params(ts->input_dev, ABS_Y, 0, SCREEN_MAX_Y, 0, 0);
|
input_set_abs_params(ts->input_dev, ABS_PRESSURE, 0, 255, 0, 0);
|
|
#else
|
ts->input_dev->absbit[0] = BIT_MASK(ABS_MT_TRACKING_ID) |
|
BIT_MASK(ABS_MT_TOUCH_MAJOR) | BIT_MASK(ABS_MT_WIDTH_MAJOR) |
|
BIT_MASK(ABS_MT_POSITION_X) | BIT_MASK(ABS_MT_POSITION_Y);
|
input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0);
|
input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
|
input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, 0, SCREEN_MAX_X,
|
0, 0);
|
input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, 0, SCREEN_MAX_Y,
|
0, 0);
|
input_set_abs_params(ts->input_dev, ABS_MT_TRACKING_ID, 0,
|
MAX_FINGER_NUM, 0, 0);
|
#endif
|
|
#ifdef FOR_TSLIB_TEST
|
set_bit(BTN_TOUCH, ts->input_dev->keybit);
|
#endif
|
|
sprintf(ts->phys, "input/goodix-ts");
|
ts->input_dev->name = CTP_NAME;
|
ts->input_dev->phys = ts->phys;
|
ts->input_dev->id.bustype = BUS_I2C;
|
ts->input_dev->id.vendor = 0xDEAD;
|
ts->input_dev->id.product = 0xBEEF;
|
ts->input_dev->id.version = 0x1105;
|
|
ts->is_suspended = false;
|
|
ret = input_register_device(ts->input_dev);
|
if (ret) {
|
dev_err(&client->dev, "Unable to register %s input device\n",
|
ts->input_dev->name);
|
goto err_input_register_device_failed;
|
}
|
input_set_drvdata(ts->input_dev, client);
|
ret = sysfs_create_group(&ts->input_dev->dev.kobj,
|
>82x_als_gr);
|
if (ret < 0) {
|
dev_err(&client->dev, "gt82x: sysfs_create_group err\n");
|
goto err_input_register_device_failed;
|
}
|
|
goodix_wq = create_singlethread_workqueue("goodix_wq");
|
if (!goodix_wq) {
|
pr_err("Creat %s workqueue failed.\n", f3x_ts_name);
|
return -ENOMEM;
|
|
}
|
flush_workqueue(goodix_wq);
|
ts->power = goodix_ts_power;
|
|
ts_init = ts;
|
|
goodix_init_wq = create_singlethread_workqueue("goodix_init");
|
if (goodix_init_wq == NULL) {
|
pr_err("create goodix_wq fail!\n");
|
return -ENOMEM;
|
}
|
|
goodix_resume_wq = create_singlethread_workqueue("goodix_resume");
|
if (goodix_resume_wq == NULL) {
|
pr_err("create goodix_resume_wq fail!\n");
|
return -ENOMEM;
|
}
|
|
queue_work(goodix_init_wq, &goodix_init_work);
|
|
goodix_ts_version(ts);
|
pm_runtime_set_active(&client->dev);
|
pm_runtime_get(&client->dev);
|
pm_runtime_enable(&client->dev);
|
|
pr_debug("========Probe Ok================\n");
|
|
return 0;
|
|
err_input_register_device_failed:
|
input_free_device(ts->input_dev);
|
err_input_dev_alloc_failed:
|
i2c_set_clientdata(client, NULL);
|
err_alloc_data_failed:
|
err_check_functionality_failed:
|
return ret;
|
}
|
|
static int goodix_ts_remove(struct i2c_client *client)
|
{
|
struct goodix_ts_data *ts = i2c_get_clientdata(client);
|
|
dev_notice(&client->dev, "The driver is removing...\n");
|
|
input_free_int(&(config_info.input_type), ts_init);
|
|
cancel_work_sync(&goodix_init_work);
|
cancel_work_sync(&goodix_resume_work);
|
flush_workqueue(goodix_wq);
|
if (goodix_resume_wq)
|
destroy_workqueue(goodix_resume_wq);
|
if (goodix_init_wq)
|
destroy_workqueue(goodix_init_wq);
|
if (goodix_wq)
|
destroy_workqueue(goodix_wq);
|
pm_runtime_disable(&client->dev);
|
pm_runtime_set_suspended(&client->dev);
|
sysfs_remove_group(&ts->input_dev->dev.kobj, >82x_als_gr);
|
input_unregister_device(ts->input_dev);
|
i2c_set_clientdata(ts->client, NULL);
|
kfree(ts);
|
|
return 0;
|
}
|
|
static const struct i2c_device_id goodix_ts_id[] = {
|
{CTP_NAME, 0},
|
};
|
|
static const struct dev_pm_ops gt82x_pm_ops = {
|
.suspend = goodix_ts_suspend,
|
.resume = goodix_ts_resume,
|
};
|
|
#define GT82X_PM_OPS (>82x_pm_ops)
|
|
static struct i2c_driver goodix_ts_driver = {
|
.class = I2C_CLASS_HWMON,
|
.probe = goodix_ts_probe,
|
.remove = goodix_ts_remove,
|
.id_table = goodix_ts_id,
|
.driver = {
|
.name = CTP_NAME,
|
.owner = THIS_MODULE,
|
.pm = GT82X_PM_OPS,
|
},
|
.detect = ctp_detect,
|
.address_list = normal_i2c,
|
};
|
|
static int ctp_get_system_config(void)
|
{
|
ctp_print_info(config_info, DEBUG_INIT);
|
twi_id = config_info.twi_id;
|
screen_max_x = config_info.screen_max_x;
|
screen_max_y = config_info.screen_max_y;
|
revert_x_flag = config_info.revert_x_flag;
|
revert_y_flag = config_info.revert_y_flag;
|
exchange_x_y_flag = config_info.exchange_x_y_flag;
|
if ((screen_max_x == 0) || (screen_max_y == 0)) {
|
pr_err("%s:read config error!\n", __func__);
|
return 0;
|
}
|
|
return 1;
|
}
|
static int __init goodix_ts_init(void)
|
{
|
int ret = -1;
|
|
pr_debug("*********************************************\n");
|
if (!input_sensor_startup(&(config_info.input_type))) {
|
ret = input_sensor_init(&(config_info.input_type));
|
if (ret != 0) {
|
pr_err("%s:ctp_ops.input_sensor_init err.\n", __func__);
|
goto init_err;
|
}
|
input_set_power_enable(&(config_info.input_type), 1);
|
} else {
|
pr_err("%s: input_ctp_startup err.\n", __func__);
|
return 0;
|
}
|
if (config_info.ctp_used == 0) {
|
pr_info("*** ctp_used set to 0 !\n");
|
pr_info("*** if use ctp, please put the sys_config.fex ctp_used set to 1.\n");
|
ret = 0;
|
goto init_err;
|
}
|
if (!ctp_get_system_config()) {
|
pr_err("%s:read config fail!\n", __func__);
|
goto init_err;
|
}
|
ctp_wakeup(0, 2);
|
|
ret = i2c_add_driver(&goodix_ts_driver);
|
if (ret)
|
goto init_err;
|
|
pr_debug("*********************************************\n");
|
return ret;
|
init_err:
|
input_set_power_enable(&(config_info.input_type), 0);
|
return ret;
|
}
|
|
static void __exit goodix_ts_exit(void)
|
{
|
i2c_del_driver(&goodix_ts_driver);
|
input_sensor_free(&(config_info.input_type));
|
input_set_power_enable(&(config_info.input_type), 0);
|
}
|
|
late_initcall(goodix_ts_init);
|
module_exit(goodix_ts_exit);
|
MODULE_DESCRIPTION("Goodix Touchscreen Driver");
|
MODULE_LICENSE("GPL v2");
|
