- msgs[0].addr=client->
- msgs[1].addr=client->
- ret=i2c_transfer(client->
- msg.addr=client->
- ret=i2c_transfer(client->
- config_info[62]=480>>
- config_info[64]=800>>
- disable_irq_nosync(this_client->
*work){
- intret;
- unsignedcharpoint_data[19]={0x07,0x21,0};
- unsignedshortinput_x=0;
- unsignedshortinput_y=0;
- unsignedshortinput_p=0;
- ret=i2c_read_bytes(this_client,point_data,sizeof(point_data)/sizeof(point_data[0]));
- if(ret<=0){
- printk("Failed");
- return;
- }
- if(point_data[2]&0x1){
- status=1;
- input_y=479-((point_data[4]<8)|point_data[5]);
- input_x=799-((point_data[6]<8)|point_data[7]);
- input_p=point_data[8];
- printk("stat:%d,x:%d,y:%d,p:%d",point_data[2],input_x,input_y,
- input_p);
- }
- elseif(status){
- status=0;
- printk("up");
- }
- enable_irq(this_client->irq);
- }
- staticintts_probe(structi2c_client*client,conststructi2c_device_id*id){
- intretry,ret;
- chartest_data;
- printk("ts_probe");
- test_data=0;
- gt811_rst=S5PV210_GPD0(3);
- gt811_int=S5PV210_GPH1(6);
- gpio_request(gt811_rst,"reset");
- gpio_request(gt811_rst,"tsint");
- if(!i2c_check_functionality(client->adapter,I2C_FUNC_I2C))
- {
- dev_err(&client->dev,"MusthaveI2C_FUNC_I2C.");
- return-ENODEV;
- }
- s3c_gpio_setpull(gt811_rst,S3C_GPIO_PULL_UP);
- for(retry=0;retry<5;retry++)
- {
- gpio_direction_output(gt811_rst,0);
- msleep(1);
- gpio_direction_input(gt811_rst);
- msleep(100);
- ret=i2c_write_bytes(client,&test_data,1);
- if(ret>0)
- break;
- dev_info(&client->dev,"GT811I2CTESTFAILED!PleasechecktheHARDWAREconnect");
- }
- if(ret<=0)
- {
- dev_err(&client->dev,"Warnning:I2CcommunicationmightbeERROR!");
- return-ENODEV;
- }
- for(retry=0;retry!=5;++retry){
- ret=ts_init_panel(client);
- if(ret!=0){
- continue;
- }
- else{
- break;
- }
- }
- if(ret!=0){
- printk("GT811Configuefailed!");
- return-ENODEV;
- }
- this_client=client;
- ts_input=input_allocate_device();
- if(IS_ERR(ts_input)){
- printk("GT811allocatetsinputdevicefailed!");
- return-ENOMEM;
- }
- ts_input->evbit[0]=BIT_MASK(EV_SYN)|BIT_MASK(EV_KEY)|BIT_MASK(EV_ABS);
- ts_input->keybit[BIT_WORD(BTN_TOUCH)]=BIT_MASK(BTN_TOUCH);
- ts_input->absbit[0]=BIT(ABS_X)|BIT(ABS_Y)|BIT(ABS_PRESSURE);
- input_set_abs_params(ts_input,ABS_Y,0,799,0,0);
- input_set_abs_params(ts_input,ABS_X,0,479,0,0);
- input_set_abs_params(ts_input,ABS_PRESSURE,0,255,0,0);
- ts_input->name="tq210-ts";
- ts_input->phys="input/ts";
- ts_input->id.bustype=BUS_I2C;
- ts_input->id.product=0xBEEF;
- ts_input->id.vendor=0xDEAD;
- ret=input_register_device(ts_input);
- if(ret<0){
- printk("Unableregister%sinputdevice!",ts_input->name);
- input_free_device(ts_input);
- return-ENOMEM;
- }
- client->irq=IRQ_EINT(14);
- s3c_gpio_setpull(gt811_int,S3C_GPIO_PULL_UP);
- if(request_irq(IRQ_EINT(14),gt811_int_handler,IRQF_TRIGGER_FALLING,"gt811-int",NULL)<0){
- printk("Requestirqforgt811failed!");
- input_unregister_device(ts_input);
- input_free_device(ts_input);
- return-ENOMEM;
- }
- wq=create_workqueue("ts_handle_thread");
- if(wq==NULL){
- printk(KERN_ALERT"creteworkqueuefailed!");
- input_unregister_device(ts_input);
- input_free_device(ts_input);
- free_irq(IRQ_EINT(14),NULL);
- return-ENOMEM;
- }
- INIT_WORK(&work,ts_work_func);
- return0;
- }
- staticintts_remove(structi2c_client*client){
- free_irq(IRQ_EINT(14),NULL);
- enable_irq(client->irq);
- flush_workqueue(wq);
- destroy_workqueue(wq);
- input_unregister_device(ts_input);
- input_free_device(ts_input);
- gpio_free(gt811_rst);
- gpio_free(gt811_int);
- return0;
- }
- staticstructi2c_driverts_driver={
- .driver={
- .name="tq210-ts",
- .owner=THIS_MODULE,
- },
- .probe=ts_probe,
- .remove=ts_remove,
- .id_table=ts_id,
- .address_list=normal_address,
- };
- staticintts_init(void){
- printk("init");
- i2c_add_driver(&ts_driver);
- return0;
- }
- staticvoidts_exit(void){
- i2c_del_driver(&ts_driver);
- printk("exit");
- }
- module_init(ts_init);
- module_exit(ts_exit);
- MODULE_LICENSE("GPL");
这并不是完整的代码，一方面是没有做异常处理，另一方面是没有上报消息，只是简单的驱动了TQ210的触摸屏部分，如果您需要拿去自己略作修改即可使用。三 注册TS的I2C模块设备
注册TS的I2C模块很简单，在Linux内核文件arch/arm/mach-s5pv210/mach-smdkv210.c文件的I2C通道2结构体中加入TS的I2C地址，也就是0x5d，添加后如下
- staticstructi2c_board_infosmdkv210_i2c_devs2[]__initdata={
- /*ToB
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