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OSHW-DEIMOS/SOFTWARE/A64-TERES/linux-a64/drivers/input/touchscreen/gt911/gt9xx_ts.c
Dimitar Gamishev f9b0e7a283 linux
2017-10-13 14:07:04 +03:00

1734 lines
44 KiB
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/* drivers/input/touchscreen/gt9xx.c
*
* 2010 - 2012 Goodix Technology.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be a reference
* to you, when you are integrating the GOODiX's CTP IC into your system,
* 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.
*
* Version:1.2
* Author:andrew@goodix.com
* Release Date:2012/10/15
* Revision record:
* V1.0:2012/08/31,first Release
* V1.2:2012/10/15,modify gtp_reset_guitar,slot report,tracking_id & 0x0F
*
*/
#include <linux/irq.h>
#include <linux/init-input.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinconf-sunxi.h>
#include <linux/pinctrl/consumer.h>
#include "gt9xx.h"
#include "gt9xx_config.h"
#if GTP_ICS_SLOT_REPORT
#include <linux/input/mt.h>
#endif
#define CFG_GROUP_LEN(p_cfg_grp) (sizeof(p_cfg_grp) / sizeof(p_cfg_grp[0]))
static const char *goodix_ts_name = "gt9xx";
static struct workqueue_struct *goodix_wq;
struct i2c_client * i2c_connect_client = NULL;
static u8 config[GTP_CONFIG_MAX_LENGTH + GTP_ADDR_LENGTH]
= {GTP_REG_CONFIG_DATA >> 8, GTP_REG_CONFIG_DATA & 0xff};
#if GTP_HAVE_TOUCH_KEY
static const u16 touch_key_array[] = GTP_KEY_TAB;
#define GTP_MAX_KEY_NUM (sizeof(touch_key_array)/sizeof(touch_key_array[0]))
#endif
static s8 gtp_i2c_test(struct i2c_client *client);
void gtp_reset_guitar(s32 ms);
void gtp_int_sync(s32 ms);
#ifdef CONFIG_HAS_EARLYSUSPEND
static void goodix_ts_early_suspend(struct early_suspend *h);
static void goodix_ts_late_resume(struct early_suspend *h);
#endif
#if GTP_CREATE_WR_NODE
extern s32 init_wr_node(struct i2c_client*);
extern void uninit_wr_node(void);
#endif
#if GTP_AUTO_UPDATE
extern u8 gup_init_update_proc(struct goodix_ts_data *);
#endif
#if GTP_ESD_PROTECT
static struct delayed_work gtp_esd_check_work;
static struct workqueue_struct * gtp_esd_check_workqueue = NULL;
static void gtp_esd_check_func(struct work_struct *);
#endif
#define CTP_NAME GTP_I2C_NAME
static int screen_max_x = 0;
static int screen_max_y = 0;
static int reg_max_x = 0;
static int reg_max_y = 0;
static int revert_x_flag = 0;
static int revert_y_flag = 0;
static int exchange_x_y_flag = 0;
static u32 int_handle = 0;
static char irq_pin_name[8];
struct ctp_config_info config_info = {
.input_type = CTP_TYPE,
.name = NULL,
.int_number = 0,
};
static u32 debug_mask = 0;
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 dprintk(level_mask,fmt,arg...) if(unlikely(debug_mask & level_mask)) \
printk("***CTP***"fmt, ## arg)
static __u32 twi_id = 0;
static const unsigned short normal_i2c[2] = {0x5d,I2C_CLIENT_END};
static const uint8_t chip_id_value[3] = {0x11,0x27,0x28};
static uint8_t read_chip_value[3] = {0x81,0x41,0};
uint8_t grp_cfg_version =0;
static int fw_index = 0;
static int update_enable = 0;
char *firmware_name;
static int name2index(const char* name)
{
int i = 0;
for (i=0; i<ARRAY_SIZE(gt9xx_fw_grp); i++) {
if (!strcmp(name, gt9xx_fw_grp[i].name))
{
printk("gt9xx:index = %d\n",i);
return i;
}
}
pr_err("gt9xx:config name %s,not in array!please check sys_config!\n",name);
return -1;
}
//#define CTP_IRQ_MODE (TRIG_EDGE_NEGATIVE)
//#define GTP_MAX_HEIGHT screen_max_x
//#define GTP_MAX_WIDTH screen_max_y
/******************************************
**int2io:
**status:
** 1:io output 0:io input
**level:
** 1:output high 0:output low
******************************************/
void int2io(int status,int level)
{
int req_success;
req_success = (0 == gpio_request(config_info.int_number, NULL));
if(status == 1)
{
dprintk(DEBUG_INIT,"irq pin set to output function\n");
gpio_direction_output(config_info.int_number, level);
}
else if(status == 0)
{
gpio_direction_input(config_info.int_number);
}
if(req_success){
gpio_free(config_info.int_number);
}
else
{
printk("int2io gpio request failed! config_info.int_number = %d,ret = %d\n",config_info.int_number,req_success);
}
}
/*******************************************************
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
*********************************************************/
s32 gtp_i2c_read(struct i2c_client *client, u8 *buf, s32 len)
{
struct i2c_msg msgs[2];
s32 ret=-1;
s32 retries = 0;
GTP_DEBUG_FUNC();
msgs[0].flags = !I2C_M_RD;
msgs[0].addr = client->addr;
msgs[0].len = GTP_ADDR_LENGTH;
msgs[0].buf = &buf[0];
msgs[1].flags = I2C_M_RD;
msgs[1].addr = client->addr;
msgs[1].len = len - GTP_ADDR_LENGTH;
msgs[1].buf = &buf[GTP_ADDR_LENGTH];
while(retries < 5)
{
ret = i2c_transfer(client->adapter, msgs, 2);
if(ret == 2)break;
retries++;
}
if(retries >= 5)
{
GTP_DEBUG("I2C retry timeout, reset chip.");
gtp_reset_guitar(10);
}
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.
*********************************************************/
s32 gtp_i2c_write(struct i2c_client *client,u8 *buf,s32 len)
{
struct i2c_msg msg;
s32 ret=-1;
s32 retries = 0;
GTP_DEBUG_FUNC();
msg.flags = !I2C_M_RD;
msg.addr = client->addr;
msg.len = len;
msg.buf = buf;
while(retries < 5)
{
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret == 1)break;
retries++;
}
if(retries >= 5)
{
GTP_DEBUG("I2C retry timeout, reset chip.");
gtp_reset_guitar(10);
}
return ret;
}
/**
* ctp_detect - Device detection callback for automatic device creation
* return value:
* = 0; success;
* < 0; err
*/
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)){
printk("======return=====\n");
return -ENODEV;
}
if(twi_id == adapter->nr){
uint8_t id = 0;
dprintk(DEBUG_INIT,"%s: addr= %x\n",__func__,client->addr);
msleep(50);
gtp_i2c_read(client,read_chip_value,3);
id = (read_chip_value[2] - '0')&0xf;
read_chip_value[1] = 0x42;
gtp_i2c_read(client,read_chip_value,3);
id = ((id << 4)&0xf0)|((read_chip_value[2] - '0')&0x0f);
dprintk(DEBUG_INIT,"id = %x\n",id);
read_chip_value[2] = id;
dprintk(DEBUG_INIT,"chip_id_value:0x%x\n",id);
while(chip_id_value[i++]){
if(read_chip_value[2] == chip_id_value[i - 1]){
dprintk(DEBUG_INIT,"I2C connection sucess!\n");
strlcpy(info->type, CTP_NAME, I2C_NAME_SIZE);
return 0;
}
}
printk("%s:I2C connection might be something wrong ! \n",__func__);
return -ENODEV;
}else{
return -ENODEV;
}
}
/*******************************************************
Function:
Send config Function.
Input:
client: i2c client.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
s32 gtp_send_cfg(struct i2c_client *client)
{
s32 ret = 0;
#if GTP_DRIVER_SEND_CFG
s32 retry = 0;
for (retry = 0; retry < 5; retry++)
{
ret = gtp_i2c_write(client, config , GTP_CONFIG_MAX_LENGTH + GTP_ADDR_LENGTH);
if (ret > 0)
{
break;
}
}
#endif
return ret;
}
/*******************************************************
Function:
Enable IRQ Function.
Input:
ts: i2c client private struct.
Output:
None.
*******************************************************/
/*void gtp_irq_disable(struct goodix_ts_data *ts)
{
unsigned long irqflags;
GTP_DEBUG_FUNC();
spin_lock_irqsave(&ts->irq_lock, irqflags);
if (!ts->irq_is_disable)
{
ts->irq_is_disable = 1;
disable_irq_nosync(ts->client->irq);
}
spin_unlock_irqrestore(&ts->irq_lock, irqflags);
}
*/
/*******************************************************
Function:
Disable IRQ Function.
Input:
ts: i2c client private struct.
Output:
None.
*******************************************************/
/*void gtp_irq_enable(struct goodix_ts_data *ts)
{
unsigned long irqflags = 0;
GTP_DEBUG_FUNC();
spin_lock_irqsave(&ts->irq_lock, irqflags);
if (ts->irq_is_disable)
{
enable_irq(ts->client->irq);
ts->irq_is_disable = 0;
}
spin_unlock_irqrestore(&ts->irq_lock, irqflags);
}*/
/*******************************************************
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 gtp_touch_down(struct goodix_ts_data* ts,s32 id,s32 x,s32 y,s32 w)
{
#if GTP_CHANGE_X2Y
GTP_SWAP(x, y);
#endif
if(1 == exchange_x_y_flag){
swap(x, y);
}
if(1 == revert_x_flag){
x = screen_max_x - x;
}
if(1 == revert_y_flag){
y = screen_max_y - y;
}
#if GTP_ICS_SLOT_REPORT
input_mt_slot(ts->input_dev, id);
input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, id);
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);
#else
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);
#endif
GTP_DEBUG("ID:%d, X:%d, Y:%d, W:%d", id, x, y, w);
}
/*******************************************************
Function:
Touch up report function.
Input:
ts:private data.
Output:
None.
*******************************************************/
static void gtp_touch_up(struct goodix_ts_data* ts, s32 id)
{
#if GTP_ICS_SLOT_REPORT
input_mt_slot(ts->input_dev, id);
input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, -1);
GTP_DEBUG("Touch id[%2d] release!", id);
#else
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);
#endif
}
/*******************************************************
Function:
Goodix touchscreen work function.
Input:
work: work_struct of goodix_wq.
Output:
None.
*******************************************************/
static void goodix_ts_work_func(struct work_struct *work)
{
u8 end_cmd[3] = {GTP_READ_COOR_ADDR >> 8, GTP_READ_COOR_ADDR & 0xFF, 0};
u8 point_data[2 + 1 + 8 * GTP_MAX_TOUCH + 1]={GTP_READ_COOR_ADDR >> 8, GTP_READ_COOR_ADDR & 0xFF};
u8 touch_num = 0;
u8 finger = 0;
static u16 pre_touch = 0;
static u8 pre_key = 0;
u8 key_value = 0;
u8* coor_data = NULL;
s32 input_x = 0;
s32 input_y = 0;
s32 input_w = 0;
s32 id = 0;
s32 i = 0;
s32 ret = -1;
struct goodix_ts_data *ts = NULL;
GTP_DEBUG_FUNC();
ts = container_of(work, struct goodix_ts_data, work);
if (ts->enter_update)
{
return;
}
ret = gtp_i2c_read(ts->client, point_data, 12);
if (ret < 0)
{
GTP_ERROR("I2C transfer error. errno:%d\n ", ret);
goto exit_work_func;
}
finger = point_data[GTP_ADDR_LENGTH];
if((finger & 0x80) == 0)
{
goto exit_work_func;
}
touch_num = finger & 0x0f;
if (touch_num > GTP_MAX_TOUCH)
{
goto exit_work_func;
}
if (touch_num > 1)
{
u8 buf[8 * GTP_MAX_TOUCH] = {(GTP_READ_COOR_ADDR + 10) >> 8, (GTP_READ_COOR_ADDR + 10) & 0xff};
ret = gtp_i2c_read(ts->client, buf, 2 + 8 * (touch_num - 1));
memcpy(&point_data[12], &buf[2], 8 * (touch_num - 1));
}
#if GTP_HAVE_TOUCH_KEY
key_value = point_data[3 + 8 * touch_num];
if(key_value || pre_key)
{
for (i = 0; i < GTP_MAX_KEY_NUM; i++)
{
input_report_key(ts->input_dev, touch_key_array[i], key_value & (0x01<<i));
}
touch_num = 0;
pre_touch = 0;
}
#endif
pre_key = key_value;
GTP_DEBUG("pre_touch:%02x, finger:%02x.", pre_touch, finger);
#if GTP_ICS_SLOT_REPORT
if (pre_touch || touch_num)
{
s32 pos = 0;
u16 touch_index = 0;
coor_data = &point_data[3];
if(touch_num)
{
id = coor_data[pos] & 0x0F;
touch_index |= (0x01<<id);
}
GTP_DEBUG("id=%d,touch_index=0x%x,pre_touch=0x%x\n",id, touch_index,pre_touch);
for (i = 0; i < GTP_MAX_TOUCH; i++)
{
if (touch_index & (0x01<<i))
{
input_x = coor_data[pos + 1] | coor_data[pos + 2] << 8;
input_y = coor_data[pos + 3] | coor_data[pos + 4] << 8;
input_w = coor_data[pos + 5] | coor_data[pos + 6] << 8;
gtp_touch_down(ts, id, input_x, input_y, input_w);
pre_touch |= 0x01 << i;
pos += 8;
id = coor_data[pos] & 0x0F;
touch_index |= (0x01<<id);
}
else// if (pre_touch & (0x01 << i))
{
gtp_touch_up(ts, i);
pre_touch &= ~(0x01 << i);
}
}
}
#else
input_report_key(ts->input_dev, BTN_TOUCH, (touch_num || key_value));
if (touch_num )
{
for (i = 0; i < touch_num; i++)
{
coor_data = &point_data[i * 8 + 3];
id = coor_data[0] & 0x0F;
input_x = coor_data[1] | coor_data[2] << 8;
input_y = coor_data[3] | coor_data[4] << 8;
input_w = coor_data[5] | coor_data[6] << 8;
gtp_touch_down(ts, id, input_x, input_y, input_w);
}
}
else if (pre_touch)
{
GTP_DEBUG("Touch Release!");
gtp_touch_up(ts, 0);
}
pre_touch = touch_num;
#endif
input_sync(ts->input_dev);
exit_work_func:
if(!ts->gtp_rawdiff_mode)
{
ret = gtp_i2c_write(ts->client, end_cmd, 3);
if (ret < 0)
{
GTP_INFO("I2C write end_cmd error!");
}
}
//if (ts->use_irq)
//{
// gtp_irq_enable(ts);
//}
}
/*******************************************************
Function:
Timer interrupt service routine.
Input:
timer: timer struct pointer.
Output:
Timer work mode. HRTIMER_NORESTART---not restart mode
*******************************************************
static enum hrtimer_restart goodix_ts_timer_handler(struct hrtimer *timer)
{
struct goodix_ts_data *ts = container_of(timer, struct goodix_ts_data, timer);
GTP_DEBUG_FUNC();
queue_work(goodix_wq, &ts->work);
hrtimer_start(&ts->timer, ktime_set(0, (GTP_POLL_TIME+6)*1000000), HRTIMER_MODE_REL);
return HRTIMER_NORESTART;
}
*******************************************************
Function:
External interrupt service routine.
Input:
irq: interrupt number.
dev_id: private data pointer.
Output:
irq execute status.
*******************************************************/
static irqreturn_t goodix_ts_irq_handler(int irq, void *dev_id)
{
struct goodix_ts_data *ts = (struct goodix_ts_data *)dev_id;
dprintk(DEBUG_INT_INFO,"==========------TS Interrupt-----============\n");
queue_work(goodix_wq, &ts->work);
return 0;
}
static void gtp_set_io_int(void)
{
long unsigned int config;
config = SUNXI_PINCFG_PACK(SUNXI_PINCFG_TYPE_FUNC,0xFFFF);
pin_config_get(SUNXI_PINCTRL,irq_pin_name,&config);
if (6 != SUNXI_PINCFG_UNPACK_VALUE(config)){
config = SUNXI_PINCFG_PACK(SUNXI_PINCFG_TYPE_FUNC,6);
pin_config_set(SUNXI_PINCTRL,irq_pin_name,config);
}
}
/*******************************************************
Function:
Int sync Function.
Input:
ms:sync time.
Output:
None.
*******************************************************/
void gtp_int_sync(s32 ms) //lbzhang
{
#if 0
struct gpio_config_eint_all cfg = {0};
int2io(1,1);
msleep(ms);
/* config to eint, and set pull, drivel level, trig type */
cfg.gpio = CTP_IRQ_NUMBER;
cfg.pull = GPIO_PULL_DEFAULT;
cfg.drvlvl = GPIO_DRVLVL_DEFAULT;
cfg.enabled = 0;
cfg.trig_type = CTP_IRQ_MODE;
if(0 != sw_gpio_eint_setall_range(&cfg, 1)) {
printk(KERN_ERR "sw_gpio_eint_setall_range failed\n");
}
#endif
//struct gpio_config_eint_all cfg = {0};
// int virq = 0;
// int req_IRQ_status;
int2io(1,1);
msleep(ms);
/* config to eint, and set pull, drivel level, trig type */
// cfg.gpio = CTP_IRQ_NUMBER;
// cfg.pull = GPIO_PULL_DEFAULT;
// cfg.drvlvl = GPIO_DRVLVL_DEFAULT;
// cfg.enabled = 0;
// cfg.trig_type = CTP_IRQ_MODE;
// config_set = SUNXI_PINCFG_PACK(SUNXI_PINCFG_TYPE_FUNC,6);
// pin_config_set(SUNXI_PINCTRL,config_info.int_number,config_set);
// if(0 != sw_gpio_eint_setall_range(&cfg, 1)) {
// printk(KERN_ERR "sw_gpio_eint_setall_range failed\n");
// }
// virq = gpio_to_irq(GPIOA(12));
// req_IRQ_status = request_irq(virq,goodix_ts_irq_handler,CTP_IRQ_MODE, "PIN_EINT", NULL);
// if (IS_ERR_VALUE(req_IRQ_status)){
// free_irq(virq,NULL);
// pr_warn("pin request irq failed !\n");
// return -EINVAL;
// }
gtp_set_io_int();
}
/*******************************************************
Function:
Reset chip Function.
Input:
ms:reset time.
Output:
None.
*******************************************************/
void gtp_reset_guitar(s32 ms)
{
GTP_DEBUG_FUNC();
int2io(1,0);
dprintk(DEBUG_INIT,"%s,%d\n",__func__,__LINE__);
msleep(2);
gpio_direction_output(config_info.wakeup_gpio.gpio, 0);
msleep(ms);
__gpio_set_value(config_info.wakeup_gpio.gpio, 1);
msleep(6); //must > 3ms
gpio_direction_input(config_info.wakeup_gpio.gpio);
gtp_int_sync(50);
}
/*******************************************************
Function:
Eter sleep function.
Input:
ts:private data.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
static s8 gtp_enter_sleep(struct goodix_ts_data * ts)
{
s8 ret = -1;
s8 retry = 0;
u8 i2c_control_buf[3] = {(u8)(GTP_REG_SLEEP >> 8), (u8)GTP_REG_SLEEP, 5};
GTP_DEBUG_FUNC();
//GTP_GPIO_OUTPUT(GTP_INT_PORT, 0);
//gpio_set_one_pin_io_status(gt9xx_int_hdle, 1, NULL);
//gpio_write_one_pin_value(gt9xx_int_hdle,0,NULL);
int2io(1,1);
//gpio_direction_output(config_info.irq_gpio_number, 1);
msleep(5);
while(retry++ < 5)
{
ret = gtp_i2c_write(ts->client, i2c_control_buf, 3);
if (ret > 0)
{
GTP_DEBUG("GTP enter sleep!");
return ret;
}
msleep(10);
}
GTP_ERROR("GTP send sleep cmd failed.");
return ret;
}
/*******************************************************
Function:
Wakeup from sleep mode Function.
Input:
ts: private data.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
static s8 gtp_wakeup_sleep(struct goodix_ts_data * ts)
{
u8 retry = 0;
s8 ret = -1;
GTP_DEBUG_FUNC();
#if GTP_POWER_CTRL_SLEEP
while(retry++ < 5)
{
gtp_reset_guitar(20);
ret = gtp_send_cfg(ts->client);
if (ret > 0)
{
GTP_DEBUG("Wakeup sleep send config success.");
return ret;
}
}
#else
while(retry++ < 10)
{
//GTP_GPIO_OUTPUT(GTP_INT_PORT, 1);
//gpio_set_one_pin_io_status(gt9xx_int_hdle, 1, NULL);
//gpio_write_one_pin_value(gt9xx_int_hdle,1,NULL);
gpio_direction_output(config_info.wakeup_gpio_number, 1);
msleep(5);
ret = gtp_i2c_test(ts->client);
if (ret > 0)
{
GTP_DEBUG("GTP wakeup sleep.");
gtp_int_sync(25);
return ret;
}
gtp_reset_guitar(20);
}
#endif
GTP_ERROR("GTP wakeup sleep failed.");
return ret;
}
s32 gtp_i2c_read_dbl_check(struct i2c_client *client, u16 addr, u8 *rxbuf, int len)
{
u8 buf[16] = {0};
u8 confirm_buf[16] = {0};
u8 retry = 0;
while (retry++ < 3)
{
memset(buf, 0xAA, 16);
buf[0] = (u8)(addr >> 8);
buf[1] = (u8)(addr & 0xFF);
gtp_i2c_read(client, buf, len + 2);
memset(confirm_buf, 0xAB, 16);
confirm_buf[0] = (u8)(addr >> 8);
confirm_buf[1] = (u8)(addr & 0xFF);
gtp_i2c_read(client, confirm_buf, len + 2);
if (!memcmp(buf, confirm_buf, len+2))
{
memcpy(rxbuf, confirm_buf+2, len);
return SUCCESS;
}
}
GTP_ERROR("i2c read 0x%04X, %d bytes, double check failed!", addr, len);
return FAIL;
}
#if GTP_DRIVER_SEND_CFG
/*******************************************************
Function:
Get information from ic, such as resolution and
int trigger type
Input:
client: i2c client private struct.
Output:
FAIL: i2c failed, SUCCESS: i2c ok
*******************************************************/
static s32 gtp_get_info(struct i2c_client *client)
{
u8 opr_buf[6] = {0};
s32 ret = 0;
opr_buf[0] = (u8)((GTP_REG_CONFIG_DATA+1) >> 8);
opr_buf[1] = (u8)((GTP_REG_CONFIG_DATA+1) & 0xFF);
ret = gtp_i2c_read(client, opr_buf, 6);
if (ret < 0)
{
return FAIL;
}
reg_max_x = (opr_buf[3] << 8) + opr_buf[2];
reg_max_y = (opr_buf[5] << 8) + opr_buf[4];
opr_buf[0] = (u8)((GTP_REG_CONFIG_DATA+6) >> 8);
opr_buf[1] = (u8)((GTP_REG_CONFIG_DATA+6) & 0xFF);
ret = gtp_i2c_read(client, opr_buf, 3);
if (ret < 0)
{
return FAIL;
}
int_handle = opr_buf[2] & 0x03;
GTP_INFO("X_MAX = %d, Y_MAX = %d, TRIGGER = 0x%02x",
reg_max_x,reg_max_y, int_handle);
return SUCCESS;
}
#endif
/*******************************************************
Function:
GTP initialize function.
Input:
ts: i2c client private struct.
Output:
Executive outcomes.0---succeed.
*******************************************************/
static s32 gtp_init_panel(struct goodix_ts_data *ts)
{
s32 ret = 0;
#if GTP_DRIVER_SEND_CFG
s32 i;
u8 check_sum = 0;
u8 opr_buf[16];
u8 sensor_id = 0;
u8 cfg_info_group1[] = CTP_CFG_GROUP1;
u8 cfg_info_group2[] = CTP_CFG_GROUP2;
u8 cfg_info_group3[] = CTP_CFG_GROUP3;
u8 cfg_info_group4[] = CTP_CFG_GROUP4;
u8 cfg_info_group5[] = CTP_CFG_GROUP5;
u8 cfg_info_group6[] = CTP_CFG_GROUP6;
u8 *send_cfg_buf[] = {cfg_info_group1, cfg_info_group2, cfg_info_group3,
cfg_info_group4, cfg_info_group5, cfg_info_group6};
u8 cfg_info_len[] = { CFG_GROUP_LEN(cfg_info_group1),
CFG_GROUP_LEN(cfg_info_group2),
CFG_GROUP_LEN(cfg_info_group3),
CFG_GROUP_LEN(cfg_info_group4),
CFG_GROUP_LEN(cfg_info_group5),
CFG_GROUP_LEN(cfg_info_group6)};
GTP_DEBUG("Config Groups\' Lengths: %d, %d, %d, %d, %d, %d",
cfg_info_len[0], cfg_info_len[1], cfg_info_len[2], cfg_info_len[3],
cfg_info_len[4], cfg_info_len[5]);
if ((!cfg_info_len[1]) && (!cfg_info_len[2]) &&
(!cfg_info_len[3]) && (!cfg_info_len[4]) &&
(!cfg_info_len[5]))
{
sensor_id = 0;
}
else
{
ret = gtp_i2c_read_dbl_check(ts->client, GTP_REG_SENSOR_ID, &sensor_id, 1);
if (SUCCESS == ret)
{
if (sensor_id >= 0x06)
{
GTP_ERROR("Invalid sensor_id(0x%02X), No Config Sent!", sensor_id);
return -1;
}
}
else
{
GTP_ERROR("Failed to get sensor_id, No config sent!");
return -1;
}
GTP_INFO("Sensor_ID: %d", sensor_id);
}
ts->gtp_cfg_len = cfg_info_len[sensor_id];
GTP_INFO("CTP_CONFIG_GROUP%d used, config length: %d", sensor_id + 1, ts->gtp_cfg_len);
if (ts->gtp_cfg_len < GTP_CONFIG_MIN_LENGTH)
{
GTP_ERROR("CTP_CONFIG_GROUP%d is INVALID CONFIG GROUP! NO Config Sent! You need to check you header file CFG_GROUP section!", sensor_id+1);
return -1;
}
{
ret = gtp_i2c_read_dbl_check(ts->client, GTP_REG_CONFIG_DATA, &opr_buf[0], 1);
if (ret == SUCCESS)
{
GTP_DEBUG("CFG_CONFIG_GROUP%d Config Version: %d, 0x%02X; IC Config Version: %d, 0x%02X", sensor_id+1,
send_cfg_buf[sensor_id][0], send_cfg_buf[sensor_id][0], opr_buf[0], opr_buf[0]);
if (opr_buf[0] < 99)
{
grp_cfg_version = send_cfg_buf[sensor_id][0]; // backup group config version
send_cfg_buf[sensor_id][0] = 0x00;
}
else // treated as fixed config, not send config
{
GTP_INFO("Ic fixed config with config version(%d)", opr_buf[0]);
gtp_get_info(ts->client);
return 0;
}
}
else
{
GTP_ERROR("Failed to get ic config version!No config sent!");
return -1;
}
}
memset(&config[GTP_ADDR_LENGTH], 0, GTP_CONFIG_MAX_LENGTH);
memcpy(&config[GTP_ADDR_LENGTH], send_cfg_buf[sensor_id], ts->gtp_cfg_len);
#if GTP_CUSTOM_CFG
config[RESOLUTION_LOC] = (u8)GTP_MAX_WIDTH;
config[RESOLUTION_LOC + 1] = (u8)(GTP_MAX_WIDTH>>8);
config[RESOLUTION_LOC + 2] = (u8)GTP_MAX_HEIGHT;
config[RESOLUTION_LOC + 3] = (u8)(GTP_MAX_HEIGHT>>8);
if (GTP_INT_TRIGGER == 0) //RISING
{
config[TRIGGER_LOC] &= 0xfe;
}
else if (GTP_INT_TRIGGER == 1) //FALLING
{
config[TRIGGER_LOC] |= 0x01;
}
#endif // GTP_CUSTOM_CFG
check_sum = 0;
for (i = GTP_ADDR_LENGTH; i < ts->gtp_cfg_len; i++)
{
check_sum += config[i];
}
config[ts->gtp_cfg_len] = (~check_sum) + 1;
#else // DRIVER NOT SEND CONFIG
ts->gtp_cfg_len = GTP_CONFIG_MAX_LENGTH;
ret = gtp_i2c_read(ts->client, config, ts->gtp_cfg_len + GTP_ADDR_LENGTH);
if (ret < 0)
{
GTP_ERROR("Read Config Failed, Using DEFAULT Resolution & INT Trigger!");
screen_max_x = GTP_MAX_WIDTH;
screen_max_y = GTP_MAX_HEIGHT;
int_handle = GTP_INT_TRIGGER;
}
#endif // GTP_DRIVER_SEND_CFG
GTP_DEBUG_FUNC();
if ((screen_max_x == 0) && (screen_max_y == 0))
{
screen_max_x = (config[RESOLUTION_LOC + 1] << 8) + config[RESOLUTION_LOC];
screen_max_y = (config[RESOLUTION_LOC + 3] << 8) + config[RESOLUTION_LOC + 2];
int_handle = (config[TRIGGER_LOC]) & 0x03;
}
{
#if GTP_DRIVER_SEND_CFG
ret = gtp_send_cfg(ts->client);
if (ret < 0)
{
GTP_ERROR("Send config error.");
}
// set config version to CTP_CFG_GROUP
// for resume to send config
config[GTP_ADDR_LENGTH] = grp_cfg_version;
check_sum = 0;
for (i = GTP_ADDR_LENGTH; i < ts->gtp_cfg_len; i++)
{
check_sum += config[i];
}
config[ts->gtp_cfg_len] = (~check_sum) + 1;
#endif
GTP_INFO("X_MAX = %d, Y_MAX = %d, TRIGGER = 0x%02x",
screen_max_x,screen_max_y,int_handle);
}
msleep(10);
return 0;
}
/*******************************************************
Function:
Read goodix touchscreen version function.
Input:
client: i2c client struct.
version:address to store version info
Output:
Executive outcomes.0---succeed.
*******************************************************/
s32 gtp_read_version(struct i2c_client *client, u16* version)
{
s32 ret = -1;
s32 i = 0;
u8 buf[8] = {GTP_REG_VERSION >> 8, GTP_REG_VERSION & 0xff};
GTP_DEBUG_FUNC();
ret = gtp_i2c_read(client, buf, sizeof(buf));
if (ret < 0)
{
GTP_ERROR("GTP read version failed");
return ret;
}
if (version)
{
*version = (buf[7] << 8) | buf[6];
}
for(i=2; i<6; i++)
{
if(!buf[i])
{
buf[i] = 0x30;
}
}
GTP_INFO("IC VERSION:%c%c%c%c_%02x%02x",
buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
return ret;
}
/*******************************************************
Function:
I2c test Function.
Input:
client:i2c client.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
static s8 gtp_i2c_test(struct i2c_client *client)
{
u8 test[3] = {GTP_REG_CONFIG_DATA >> 8, GTP_REG_CONFIG_DATA & 0xff};
u8 retry = 0;
s8 ret = -1;
GTP_DEBUG_FUNC();
while(retry++ < 5)
{
ret = gtp_i2c_read(client, test, 3);
if (ret > 0)
{
return ret;
}
GTP_ERROR("GTP i2c test failed time %d.",retry);
msleep(10);
}
return ret;
}
/*******************************************************
Function:
Request input device Function.
Input:
ts:private data.
Output:
Executive outcomes.0--success,non-0--fail.
*******************************************************/
static s8 gtp_request_input_dev(struct goodix_ts_data *ts)
{
s8 ret = -1;
//s8 phys[32];
#if GTP_HAVE_TOUCH_KEY
u8 index = 0;
#endif
GTP_DEBUG_FUNC();
ts->input_dev = input_allocate_device();
if (ts->input_dev == NULL)
{
GTP_ERROR("Failed to allocate input device.");
return -ENOMEM;
}
ts->input_dev->evbit[0] = BIT_MASK(EV_SYN) | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) ;
#if GTP_ICS_SLOT_REPORT
__set_bit(INPUT_PROP_DIRECT, ts->input_dev->propbit);
input_mt_init_slots(ts->input_dev, 255);
#else
ts->input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
#endif
#if GTP_HAVE_TOUCH_KEY
for (index = 0; index < GTP_MAX_KEY_NUM; index++)
{
input_set_capability(ts->input_dev,EV_KEY,touch_key_array[index]);
}
#endif
#if GTP_CHANGE_X2Y
GTP_SWAP(ts->abs_x_max, ts->abs_y_max);
#endif
//printk("ts->abs_x_max = %d,ts->abs_y_max = %d\n",ts->abs_x_max,ts->abs_y_max);
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_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_TRACKING_ID, 0, 255, 0, 0);
//sprintf(phys, "input/ts");
ts->input_dev->name = goodix_ts_name;
ts->input_dev->phys = "input/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 = 10427;
ret = input_register_device(ts->input_dev);
if (ret)
{
GTP_ERROR("Register %s input device failed", ts->input_dev->name);
return -ENODEV;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
ts->early_suspend.suspend = goodix_ts_early_suspend;
ts->early_suspend.resume = goodix_ts_late_resume;
register_early_suspend(&ts->early_suspend);
#endif
return 0;
}
/*******************************************************
Function:
Goodix touchscreen probe function.
Input:
client: i2c device struct.
id:device id.
Output:
Executive outcomes. 0---succeed.
*******************************************************/
static int goodix_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
s32 ret = -1;
struct goodix_ts_data *ts;
u16 version_info;
GTP_DEBUG_FUNC();
//do NOT remove these output log
GTP_INFO("GTP Driver Version:%s",GTP_DRIVER_VERSION);
GTP_INFO("GTP Driver build@%s,%s", __TIME__,__DATE__);
GTP_INFO("GTP I2C Address:0x%02x", client->addr);
i2c_connect_client = client;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
{
GTP_ERROR("I2C check functionality failed.");
return -ENODEV;
}
ts = kzalloc(sizeof(*ts), GFP_KERNEL);
if (ts == NULL)
{
GTP_ERROR("Alloc GFP_KERNEL memory failed.");
return -ENOMEM;
}
memset(ts, 0, sizeof(*ts));
INIT_WORK(&ts->work, goodix_ts_work_func);
ts->client = client;
i2c_set_clientdata(client, ts);
//ts->irq_lock = SPIN_LOCK_UNLOCKED;
ts->gtp_rawdiff_mode = 0;
//ret = gtp_request_io_port(ts,"ctp_para", "ctp_int_port", CTP_IRQ_NO, CTP_IRQ_MODE);
//if (ret < 0)
//{
// GTP_ERROR("GTP request IO port failed.");
// kfree(ts);
// return ret;
//}
ret = gtp_i2c_test(client);
if (ret < 0)
{
GTP_ERROR("I2C communication ERROR!");
}
#if GTP_AUTO_UPDATE
if(update_enable)
{
ret = gup_init_update_proc(ts);
if (ret < 0)
{
GTP_ERROR("Create update thread error.");
}
}
#endif
ret = gtp_init_panel(ts);
if (ret < 0)
{
GTP_ERROR("GTP init panel failed.");
}
ret = gtp_request_input_dev(ts);
if (ret < 0)
{
GTP_ERROR("GTP request input dev failed");
}
config_info.dev = &(ts->input_dev->dev);
if (input_request_int(&(config_info.input_type), goodix_ts_irq_handler,CTP_IRQ_MODE, ts))
{
GTP_INFO("GTP works in polling mode.");
}
else
{
ts->use_irq = 1;
GTP_INFO("GTP works in interrupt mode.");
}
ret = gtp_read_version(client, &version_info);
if (ret < 0)
{
GTP_ERROR("Read version failed.");
}
//spin_lock_init(&ts->irq_lock);
//ts->irq_lock = SPIN_LOCK_UNLOCKED;
//gtp_irq_enable(ts);
#if GTP_CREATE_WR_NODE
init_wr_node(client);
#endif
#if GTP_ESD_PROTECT
INIT_DELAYED_WORK(&gtp_esd_check_work, gtp_esd_check_func);
gtp_esd_check_workqueue = create_workqueue("gtp_esd_check");
queue_delayed_work(gtp_esd_check_workqueue, &gtp_esd_check_work, GTP_ESD_CHECK_CIRCLE);
#endif
return 0;
}
/*******************************************************
Function:
Goodix touchscreen driver release function.
Input:
client: i2c device struct.
Output:
Executive outcomes. 0---succeed.
*******************************************************/
static int goodix_ts_remove(struct i2c_client *client)
{
struct goodix_ts_data *ts = i2c_get_clientdata(client);
GTP_DEBUG_FUNC();
#ifdef CONFIG_HAS_EARLYSUSPEND
unregister_early_suspend(&ts->early_suspend);
#endif
#if GTP_CREATE_WR_NODE
uninit_wr_node();
#endif
#if GTP_ESD_PROTECT
cancel_delayed_work(&gtp_esd_check_work);
flush_workqueue(gtp_esd_check_workqueue);
destroy_workqueue(gtp_esd_check_workqueue);
printk(KERN_INFO "delay work exit!\n");
#endif
if (ts)
{
if (ts->use_irq)
{
//if(gt9xx_int_hdle){
// gpio_release(gt9xx_int_hdle, 2);
// gt9xx_int_hdle = 0;
//}
//GTP_GPIO_AS_INPUT(GTP_INT_PORT);
//GTP_GPIO_FREE(GTP_INT_PORT);
int2io(1,1);
input_free_int(&(config_info.input_type), ts);
ts->use_irq = 0;
}
else
{
hrtimer_cancel(&ts->timer);
}
}
GTP_INFO("GTP driver is removing...");
i2c_set_clientdata(client, NULL);
input_unregister_device(ts->input_dev);
kfree(ts);
return 0;
}
static int goodix_ts_suspend(struct i2c_client *client, pm_message_t mesg)
{
struct goodix_ts_data *ts;
s8 ret = -1;
ts = i2c_get_clientdata(client);
GTP_DEBUG_FUNC();
#if GTP_ESD_PROTECT
ts->gtp_is_suspend = 1;
cancel_delayed_work_sync(&gtp_esd_check_work);
#endif
if (ts->use_irq)
{
//gtp_irq_disable(ts);
input_set_int_enable(&(config_info.input_type), 0);
}
ret = cancel_work_sync(&ts->work);
flush_workqueue(goodix_wq);
ret = gtp_enter_sleep(ts);
if (ret < 0)
{
GTP_ERROR("GTP early suspend failed.");
return ret;
}
return 0;
}
static int goodix_ts_resume(struct i2c_client *client)
{
struct goodix_ts_data *ts;
s8 ret = -1;
ts = i2c_get_clientdata(client);
GTP_DEBUG_FUNC();
ret = gtp_wakeup_sleep(ts);
if (ret < 0)
{
GTP_ERROR("GTP later resume failed.");
return ret;
}
if (ts->use_irq)
{
input_set_int_enable(&(config_info.input_type), 1);
}
#if GTP_ESD_PROTECT
ts->gtp_is_suspend = 0;
queue_delayed_work(gtp_esd_check_workqueue, &gtp_esd_check_work, GTP_ESD_CHECK_CIRCLE);
#endif
return 0;
}
/*******************************************************
Function:
Early suspend function.
Input:
h:early_suspend struct.
Output:
None.
*******************************************************/
#ifdef CONFIG_HAS_EARLYSUSPEND
static void goodix_ts_early_suspend(struct early_suspend *h)
{
struct goodix_ts_data *ts;
s8 ret = -1;
ts = container_of(h, struct goodix_ts_data, early_suspend);
GTP_DEBUG_FUNC();
#if GTP_ESD_PROTECT
ts->gtp_is_suspend = 1;
cancel_delayed_work_sync(&gtp_esd_check_work);
#endif
if (ts->use_irq)
{
//gtp_irq_disable(ts);
input_set_int_enable(&(config_info.input_type), 0);
}
ret = cancel_work_sync(&ts->work);
flush_workqueue(goodix_wq);
ret = gtp_enter_sleep(ts);
if (ret < 0)
{
GTP_ERROR("GTP early suspend failed.");
}
}
/*******************************************************
Function:
Late resume function.
Input:
h:early_suspend struct.
Output:
None.
*******************************************************/
static void goodix_ts_late_resume(struct early_suspend *h)
{
struct goodix_ts_data *ts;
s8 ret = -1;
ts = container_of(h, struct goodix_ts_data, early_suspend);
GTP_DEBUG_FUNC();
ret = gtp_wakeup_sleep(ts);
if (ret < 0)
{
GTP_ERROR("GTP later resume failed.");
}
if (ts->use_irq)
{
input_set_int_enable(&(config_info.input_type), 1);
}
#if GTP_ESD_PROTECT
ts->gtp_is_suspend = 0;
queue_delayed_work(gtp_esd_check_workqueue, &gtp_esd_check_work, GTP_ESD_CHECK_CIRCLE);
#endif
}
#endif
#if GTP_ESD_PROTECT
static void gtp_esd_check_func(struct work_struct *work)
{
s32 i;
s32 ret = -1;
struct goodix_ts_data *ts = NULL;
u8 test[3] = {GTP_REG_CONFIG_DATA >> 8, GTP_REG_CONFIG_DATA & 0xff};
GTP_DEBUG_FUNC();
ts = i2c_get_clientdata(i2c_connect_client);
if (ts->gtp_is_suspend)
{
return;
}
for (i = 0; i < 3; i++)
{
ret = gtp_i2c_read(i2c_connect_client, test, 3);
if (ret >= 0)
{
break;
}
}
if (i >= 3)
{
gtp_reset_guitar(50);
}
if(!ts->gtp_is_suspend)
{
queue_delayed_work(gtp_esd_check_workqueue, &gtp_esd_check_work, GTP_ESD_CHECK_CIRCLE);
}
return;
}
#endif
static const struct i2c_device_id goodix_ts_id[] = {
{ GTP_I2C_NAME, 0 },
{ }
};
static struct i2c_driver goodix_ts_driver = {
.class = I2C_CLASS_HWMON,
.probe = goodix_ts_probe,
.remove = goodix_ts_remove,
.suspend = goodix_ts_suspend,
.resume = goodix_ts_resume,
.id_table = goodix_ts_id,
.driver = {
.name = GTP_I2C_NAME,
.owner = THIS_MODULE,
},
.address_list = normal_i2c,
};
static void ctp_print_info(struct ctp_config_info info,int debug_level)
{
if(debug_level == DEBUG_INIT)
{
dprintk(DEBUG_INIT,"info.ctp_used:%d\n",info.ctp_used);
dprintk(DEBUG_INIT,"info.twi_id:%d\n",info.twi_id);
dprintk(DEBUG_INIT,"info.screen_max_x:%d\n",info.screen_max_x);
dprintk(DEBUG_INIT,"info.screen_max_y:%d\n",info.screen_max_y);
dprintk(DEBUG_INIT,"info.revert_x_flag:%d\n",info.revert_x_flag);
dprintk(DEBUG_INIT,"info.revert_y_flag:%d\n",info.revert_y_flag);
dprintk(DEBUG_INIT,"info.exchange_x_y_flag:%d\n",info.exchange_x_y_flag);
dprintk(DEBUG_INIT,"info.irq_gpio_number:%d\n",info.irq_gpio.gpio);
dprintk(DEBUG_INIT,"info.wakeup_gpio_number:%d\n",info.wakeup_gpio.gpio);
}
}
static int ctp_get_system_config(void)
{
script_item_u item;
if(SCIRPT_ITEM_VALUE_TYPE_STR != script_get_item("ctp_para", "ctp_name", &item)){
pr_err("%s:get ctp_name err!\n",__func__);
}
else
{
GTP_INFO("%s:item.str:%s\n",__func__,item.str);
fw_index = name2index(item.str);
if (fw_index == -1) {
printk("gt9xx: no matched TP firmware!\n");
return 0;
}
}
//if(SCIRPT_ITEM_VALUE_TYPE_INT == script_get_item("ctp_para", "auto_update", &item)){
// update_enable = item.val;
if(SCIRPT_ITEM_VALUE_TYPE_STR != script_get_item("ctp_para", "ctp_firmware", &item))
{
pr_err("%s:get auto_update_firmware err!\n",__func__);
update_enable = 0;
}
else
{
update_enable = 1;
GTP_INFO("%s:item.str:%s\n",__func__,item.str);
firmware_name = item.str;
}
//}
GTP_INFO("%s:update_enable=%d\n",__func__,update_enable);
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((twi_id == 0) || (screen_max_x == 0) || (screen_max_y == 0)){
printk("%s:read config error!\n",__func__);
return 0;
}
return 1;
}
/*******************************************************
Function:
Driver Install function.
Input:
None.
Output:
Executive Outcomes. 0---succeed.
********************************************************/
static int __devinit goodix_ts_init(void)
{
s32 ret = -1;
if (input_fetch_sysconfig_para(&(config_info.input_type))) {
printk("%s: ctp_fetch_sysconfig_para err.\n", __func__);
return 0;
} else {
ret = input_init_platform_resource(&(config_info.input_type));
if (0 != ret) {
printk("%s:ctp_ops.init_platform_resource err. \n", __func__);
}
}
GTP_DEBUG_FUNC();
dprintk(DEBUG_INIT,"gt9xx Dirver Complied Time:%s %s\n",__DATE__,__TIME__);
GTP_INFO("GTP driver install.");
if(config_info.ctp_used == 0){
printk("*** ctp_used set to 0 !\n");
printk("*** if use ctp,please put the sys_config.fex ctp_used set to 1. \n");
return 0;
}
if(!ctp_get_system_config()){
printk("%s:read config fail!\n",__func__);
return ret;
}
goodix_wq = create_singlethread_workqueue("goodix_wq");
if (!goodix_wq)
{
GTP_ERROR("Creat workqueue failed.");
return -ENOMEM;
}
gpio_direction_input(config_info.wakeup_gpio.gpio);
sunxi_gpio_to_name(CTP_IRQ_NUMBER,irq_pin_name);
gtp_reset_guitar(20);
goodix_ts_driver.detect = ctp_detect;
ret = i2c_add_driver(&goodix_ts_driver);
return ret;
}
/*******************************************************
Function:
Driver uninstall function.
Input:
None.
Output:
Executive Outcomes. 0---succeed.
********************************************************/
static void __exit goodix_ts_exit(void)
{
GTP_DEBUG_FUNC();
GTP_INFO("GTP driver exited.");
i2c_del_driver(&goodix_ts_driver);
if (goodix_wq)
{
destroy_workqueue(goodix_wq);
}
}
late_initcall(goodix_ts_init);
module_exit(goodix_ts_exit);
module_param_named(debug_mask,debug_mask,int,0644);
MODULE_DESCRIPTION("GTP Series Driver");
MODULE_LICENSE("GPL");
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