佛山市新城开发建设有限公司网站,用以前用过的域名做网站,WordPress徽章系统,wordpress 修改教程文章目录一、驱动注册失败二、触摸屏可以触摸#xff0c;但是x轴数据反了三、可以触摸了#xff0c;但是Y轴数据跳变#xff0c;几乎只有一半的屏幕是可以正常滑动的三、汇顶触摸屏配置文件解析四、使用新的配置文件4.1 新配置解决问题4.2 测试触摸的方法在kernel增加frame …
文章目录一、驱动注册失败二、触摸屏可以触摸但是x轴数据反了三、可以触摸了但是Y轴数据跳变几乎只有一半的屏幕是可以正常滑动的三、汇顶触摸屏配置文件解析四、使用新的配置文件4.1 新配置解决问题4.2 测试触摸的方法在kernel增加frame buffer(/dev/fb0)设备节点在buildroot中配置增加tslib4.3 测试五、工作一段时间触摸屏驱动崩溃六、在LVGL中的触摸修改:上下滑动方向相反硬件易百纳38x38mm RV1126板 SDK2.2
一、驱动注册失败
上电信息中出现如下
[ 0.403505] i2c /dev entries driver
[ 0.406719] goodix_ts_probe() start
[ 0.406762] Goodix-TS 3-005d: no max-x defined
[ 0.406797] Goodix-TS: probe of 3-005d failed with error -22解决在kernel/drivers/input/touchscreen/gt9xx/gt9xx.c驱动中搜索“no max-x defined”的关键句发现设备树中没有配置tp-size属性根据代码的理解是选择触摸屏芯片的型号若代码中没有对应的芯片型号可以自己添加
if (of_property_read_u32(np, tp-size, val)) {dev_err(client-dev, no max-x defined\n);return -EINVAL;}if (val 89) {m89or101 TRUE;gtp_change_x2y TRUE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;} else if (val 101) {m89or101 FALSE;gtp_change_x2y TRUE;gtp_x_reverse TRUE;gtp_y_reverse FALSE;} else if (val 911) {m89or101 FALSE;bgt911 TRUE;gtp_change_x2y TRUE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;} else if (val 970) {m89or101 FALSE;bgt911 FALSE;bgt970 TRUE;gtp_change_x2y FALSE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;} else if (val 910) {m89or101 FALSE;bgt911 FALSE;bgt970 FALSE;bgt910 TRUE;gtp_change_x2y TRUE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;}在设备树文件/kernel/arch/arm/boot/dts/rv1109-38-v10-spi-nand.dts修改增加tp-size为如下
i2c3 {status okay;clock-frequency 400000;pinctrl-names default;pinctrl-0 i2c3m1_xfer; gt9xx: gt9xx5d {compatible goodix,gt9xx;reg 0x5d;
// gtp_ics_slot_report;touch-gpio gpio2 RK_PA6 IRQ_TYPE_EDGE_RISING;reset-gpio gpio2 RK_PD6 GPIO_ACTIVE_HIGH;max-x 1024;max-y 600;tp-size 911;
// power-supply vcc18_lcd_n;};
};解决了
[ 0.403886] i2c /dev entries driver
[ 0.407113] goodix_ts_probe() start
[ 0.407181] Goodix-TS 3-005d: 3-005d supply tp not found, using dummy regulator
[ 0.407292] Goodix-TS 3-005d: Linked as a consumer to regulator.0
[ 0.579130] input: goodix-ts as /devices/platform/ff520000.i2c/i2c-3/3-005d/input/input0
tp-size” 这个参数表面看是 tp 的尺寸实际在代码中通过这个参数来选择配置信息和触摸调整在源码中根据 tp-size 设置 tp 方向是否需要镜像、切换还有需要使用的配置参数。 如果 bgt927 设置为 TRUE其他的 bgtxxx 都要设置 FALSE 开始调试时下面三个参数都设置为 FALSE然后根据 bgt927 选择配置参数编译烧录后根据实际现象再调整下面三个参数 gtp_change-x2yx、y交换方向 gtp_x_reversex 方向坐标镜像 gtp_y_reversey 方向左边镜像
if (val 89) {m89or101 TRUE;gtp_change_x2y TRUE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;} else if (val 101) {m89or101 FALSE;gtp_change_x2y TRUE;gtp_x_reverse TRUE;gtp_y_reverse FALSE;} else if (val 911) {m89or101 FALSE;bgt911 TRUE;gtp_change_x2y TRUE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;} else if (val 970) {m89or101 FALSE;bgt911 FALSE;bgt970 TRUE;gtp_change_x2y FALSE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;} else if (val 910) {m89or101 FALSE;bgt911 FALSE;bgt970 FALSE;bgt910 TRUE;gtp_change_x2y TRUE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;}
val是读取设备树里的tp-size来获取的:用于调节触摸xy轴
二、触摸屏可以触摸但是x轴数据反了
gt9xx.c驱动里面有调整X轴和Y轴数据方向代码只需要修改下驱动即可
m89or101 FALSE;
bgt9271 TRUE;
gtp_change_x2y FALSE; X轴和Y轴数据交换
gtp_x_reverse TRUE; X轴数据反转
gtp_y_reverse TRUE; XY轴数据反转如果上面配置修改没有起作用看下代码哪里做了判断修改如下即可触摸正常
//if (!bgt911 !bgt970) {if (gtp_x_reverse)x ts-abs_x_max - x;if (gtp_y_reverse)y ts-abs_y_max - y;
// } 三、可以触摸了但是Y轴数据跳变几乎只有一半的屏幕是可以正常滑动的
参考RK3399触摸不准修改drivers中gt9xx.h的cfg
文件目录kernel/drivers/input/touchscreen/gt9xx/gt9xx.h打开这个调试宏
#define DEBUG_SWITCH 1Debug看日志
[ 0.403131] -GTP-INFO- GTP driver installing...
[ 0.403670] i2c /dev entries driver
[ 0.406933] goodix_ts_probe() start
[ 0.406968] -GTP-INFO- GTP Driver Version: V2.22014/01/14
[ 0.406983] -GTP-INFO- GTP I2C Address: 0x5d
[ 0.407028] Goodix-TS 3-005d: 3-005d supply tp not found, using dummy regulator
[ 0.407138] Goodix-TS 3-005d: Linked as a consumer to regulator.0
[ 0.432077] -GTP-INFO- Guitar reset
[ 0.556023] -GTP-INFO- Chip Type: GOODIX_GT9
[ 0.556497] -GTP-INFO- IC Version: 911_1060
[ 0.556524] -GTP-INFO- gtp_init_panel_1429
[ 0.556524]
[ 0.556551] -GTP-DEBUG- [1459]Config Groups Lengths: 186, 0, 0, 0, 0, 0
[ 0.556888] -GTP-INFO- CTP_CONFIG_GROUP1 used, config length: 186
[ 0.557242] -GTP-DEBUG- [1534]CFG_GROUP1 Config Version: 67, 0x43; IC Config Version: 65, 0x41
[ 0.557269] -GTP-INFO- gtp_init_panel_1538
[ 0.557269]
[ 0.557297] -GTP-INFO- gtp_init_panel_1603 4096, 4096
[ 0.557297]
[ 0.557315] -GTP-INFO- gtp_init_panel_1605
[ 0.557315]
[ 0.557332] -GTP-INFO- gtp_init_panel_1644
[ 0.557332]
[ 0.557353] -GTP-INFO- Driver send config.
[ 0.563126] -GTP-INFO- X_MAX: 4096, Y_MAX: 4096, TRIGGER: 0x01
[ 0.578615] -GTP-INFO- create proc entry gt9xx_config success
[ 0.578938] input: goodix-ts as /devices/platform/ff520000.i2c/i2c-3/3-005d/input/input0
[ 0.579234] -GTP-DEBUG- [1870]INT trigger type:1
[ 0.579560] -GTP-INFO- gtp_request_irq_1884 ts-irq81 ret 0
[ 0.579560]
[ 0.579596] -GTP-INFO- gtp_request_irq_1914 ts-irq81 ret 0
[ 0.579596]
[ 0.579618] -GTP-INFO- GTP works in interrupt mode.
这句话
[ 0.563126] -GTP-INFO- X_MAX: 4096, Y_MAX: 4096, TRIGGER: 0x01那问题就很明显了应该是cfg不对X轴和Y轴的最大尺寸是错的
根据文件kernel/drivers/input/touchscreen/gt9xx/gt9xx_cfg.h
#ifndef _GOODIX_GT9XX_CFG_H_
#define _GOODIX_GT9XX_CFG_H_/* CFG for GT911 */
u8 gtp_dat_gt11[] {/* 1200, 1920*/#include WGJ89006B_GT911_Config_20140625_085816_0X43.cfg
};u8 gtp_dat_8_9[] {/* TODO:Puts your update firmware data here! *//* 1920, 1200 8.9 *//* #include WGJ89006B_GT9271_Config_20140625_085816_0X41.cfg *//* #include WGJ10162_GT9271_Config_20140820_182456.cfg */#include WGJ10162B_GT9271_1060_Config_20140821_1341110X42.cfg
};u8 gtp_dat_8_9_1[] {#include GT9271_Config_20170526.cfg
};u8 gtp_dat_9_7[] {/* 1536, 2048 9.7 */#include GT9110P_Config_20160217_1526_2048_97.cfg
};u8 gtp_dat_10_1[] {/* TODO:Puts your update firmware data here! *//* 1200, 1920 10.1 */#include WGJ10187_GT9271_Config_20140623_104014_0X41.cfg
};u8 gtp_dat_7[] {/* TODO:Puts your update firmware data here! *//* 1024, 600 7.0 */#include WGJ10187_GT910_Config_20140623_104014_0X41.cfg
};#endif /* _GOODIX_GT9XX_CFG_H_ */对应的配置文件gtp_dat_gt11居然用的分辨率是1200, 1920所以确定是kernel/drivers/input/touchscreen/gt9xx/gt9xx_cfg.h文件里面的配置出错了
需要找供应商要触摸屏的cfg文件不然无解
三、汇顶触摸屏配置文件解析
参考汇顶GT9xxx触摸配置
使用汇顶Gt9xxx触摸屏需要修改 drivers/input/touchscreen/gt9xxnewgt9xx.h 来更改分辨率
测试校验和的工具
#include QCoreApplication
#include stdio.h
#include QDebuguint8_t CTP_CFG_GROUP1[] {\0x00,0x00,0x04,0x58,0x02,0x0A,0x0D,0x00,0x01,0x0A,0x1E,0x0F,0x58,0x41,0x03,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x8C,0x2E,0x0E,0x2F,0x31,0xEB,0x04,0x00,0x00,0x00,0x22,0x02,0x1D,0x00,0x01,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x1E,0x50,0x94,0xC5,0x02,0x07,0x00,0x00,0x04,0xC8,0x21,0x00,0xAA,0x28,0x00,0x90,0x31,0x00,0x7C,0x3B,0x00,0x6C,0x48,0x00,0x6C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x04,0x06,0x08,0x0A,0x0C,0x0E,0x10,0x12,0x14,0x16,0x18,0x1A,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x04,0x06,0x08,0x0A,0x0C,0x0F,0x10,0x12,0x13,0x14,0x16,0x18,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22,0x24,0x26,0x28,0x29,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x01};uint8_t CTP_CFG_GROUP2[] {\0x42,0x00,0x05,0x20,0x03,0x0A,0x3D,0x00,0x01,0x08,\0x28,0x0F,0x50,0x32,0x03,0x05,0x00,0x00,0x00,0x00,\0x00,0x00,0x00,0x17,0x19,0x1D,0x14,0x8D,0x2D,0x88,\0x1E,0x20,0x31,0x0D,0x00,0x00,0x00,0x42,0x03,0x1D,\0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\0x00,0x14,0x2D,0x94,0xD5,0x02,0x07,0x00,0x00,0x04,\0xAF,0x15,0x00,0x95,0x19,0x00,0x80,0x1E,0x00,0x70,\0x23,0x00,0x63,0x29,0x00,0x63,0x00,0x00,0x00,0x00,\0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\0x00,0x00,0x00,0x01,0x04,0x05,0x06,0x07,0x08,0x09,\0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x14,0x15,0xFF,0xFF,\0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\0x00,0x00,0x00,0x02,0x04,0x06,0x07,0x08,0x0A,0x0C,\0x0F,0x10,0x11,0x12,0x13,0x19,0x1B,0x1C,0x1E,0x1F,\0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0xFF,0xFF,\0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,\0x00,0x00,0x00,0x00,0xEE,0x01};uint8_t SumCheck(uint8_t *data,int data_len)
{uint8_t sum_check 0;for(int i 0;(idata_len)(i1000);i){sum_check data[i];}sum_check ~sum_check;sum_check 1;return sum_check;
}int main(int argc, char *argv[])
{QCoreApplication a(argc, argv);uint8_t sum_check 0;uint8_t *list[2] {CTP_CFG_GROUP1,CTP_CFG_GROUP2};for(int i 0;i2;i){sum_check SumCheck(list[i],184);printf(-------------num:%d----------\n,i1);printf(lcd_x_pix %d\n,(list[i][1])|list[i][2]8);printf(lcd_y_pix %d\n,(list[i][3])|list[i][4]8);printf(sum_check 0x%2x\n,sum_check);printf(sum 0x%2x\n,list[i][184]);if(sum_check list[i][184])printf(check ok\n);elseprintf(check error!!!\n);}return a.exec();
}四、使用新的配置文件
4.1 新配置解决问题
千方百计搞到一个可以使用的配置文件。
GT911.cfg
0x41,0x00,0x04,0x58,0x02,0x0A,0x3C,0x00,0x02,0x54,0x28,0x0F,0x50,0x2D,0x03,0x05,0x00,0x00,0x00,0x00,0x40,0x00,0x04,0x18,0x1A,0x1E,0x14,0x87,0x28,0x0A,0x3C,0x44,0x15,0x0E,0x00,0x00,0x00,0xA9,0x03,0x1C,0x00,0x01,0x00,0x00,0x00,0x00,0xFF,0x5D,0x66,0x98,0x32,0x28,0x50,0x94,0xC5,0x02,0x07,0x00,0x00,0x01,0xA1,0x2A,0x00,0x91,0x31,0x00,0x85,0x38,0x00,0x7A,0x41,0x00,0x72,0x4A,0x00,0x72,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x04,0x06,0x08,0x0A,0x0C,0x0E,0x10,0x12,0x14,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x04,0x06,0x08,0x0A,0x0C,0x1D,0x1E,0x1F,0x20,0x21,0x22,0x24,0x26,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x12,0x01终于可以用了
最后的配置kernel/drivers/input/touchscreen/gt9xx/gt9xx_cfg.h
#ifndef _GOODIX_GT9XX_CFG_H_
#define _GOODIX_GT9XX_CFG_H_/* CFG for GT911 */
u8 gtp_dat_gt11[] {/* 1200, 1920*/// #include WGJ89006B_GT911_Config_20140625_085816_0X43.cfg/* 1024, 600 7.0 */#include GT911.cfg
};
.....gt9xx.c
...if (val 89) {m89or101 TRUE;gtp_change_x2y TRUE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;} else if (val 101) {m89or101 FALSE;gtp_change_x2y TRUE;gtp_x_reverse TRUE;gtp_y_reverse FALSE;} else if (val 911) {m89or101 FALSE;bgt911 TRUE;gtp_change_x2y FALSE;gtp_x_reverse TRUE;gtp_y_reverse TRUE;} else if (val 970) {m89or101 FALSE;bgt911 FALSE;bgt970 TRUE;gtp_change_x2y FALSE;gtp_x_reverse FALSE;gtp_y_reverse FALSE;} else if (val 910) {m89or101 FALSE;bgt911 FALSE;bgt970 FALSE;bgt910 TRUE;gtp_change_x2y TRUE;gtp_x_reverse FALSE;gtp_y_reverse TRUE;}ts-tp_regulator devm_regulator_get(client-dev, tp);if (IS_ERR(ts-tp_regulator)) {dev_err(client-dev, failed to get regulator, %ld\n,PTR_ERR(ts-tp_regulator));return PTR_ERR(ts-tp_regulator);}ret regulator_enable(ts-tp_regulator);if (ret 0)GTP_ERROR(failed to enable tp regulator\n);msleep(20);ts-irq_pin of_get_named_gpio_flags(np, touch-gpio, 0, (enum of_gpio_flags *)(ts-irq_flags));ts-rst_pin of_get_named_gpio_flags(np, reset-gpio, 0, rst_flags);ts-pwr_pin of_get_named_gpio_flags(np, power-gpio, 0, pwr_flags);//ts-tp_select_pin of_get_named_gpio_flags(np, tp-select-gpio, 0, tp_select_flags);
/* if (of_property_read_u32(np, max-x, val)) {dev_err(client-dev, no max-x defined\n);return -EINVAL;}//ts-abs_x_max val;if (of_property_read_u32(np, max-y, val)) {dev_err(client-dev, no max-y defined\n);return -EINVAL;}*///ts-abs_y_max val;if (of_property_read_u32(np, configfile-num, val)) {ts-cfg_file_num 0;} else {ts-cfg_file_num val;}ts-pendown PEN_RELEASE;ts-client client;
...设备树rv1109-38-v10-spi-nand.dts相关的部分
dsi {status okay;rockchip,lane-rate 480;panel0 {compatible simple-panel-dsi;reg 0;//backlight backlight;//power-supply vcc18_lcd_n;prepare-delay-ms 5;reset-delay-ms 1;init-delay-ms 80;disable-delay-ms 10;unprepare-delay-ms 5;width-mm 165;height-mm 100;dsi,flags (MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET);dsi,format MIPI_DSI_FMT_RGB888;dsi,lanes 4;panel-init-sequence [05 64 01 1105 78 01 29];display-timings {native-mode timing0;timing0: timing0 {clock-frequency 33359000;hactive 1024;vactive 600;hfront-porch 50;hsync-len 7;hback-porch 50;vfront-porch 18;vsync-len 5;vback-porch 17;hsync-active 0;vsync-active 0;de-active 0;pixelclk-active 0;};};ports {#address-cells 1;#size-cells 0;port0 {reg 0;panel_in_dsi: endpoint {remote-endpoint dsi_out_panel;};};};};ports {#address-cells 1;#size-cells 0;port1 {reg 1;dsi_out_panel: endpoint {remote-endpoint panel_in_dsi;};};};
};i2c3 {status okay;clock-frequency 400000;pinctrl-names default;pinctrl-0 i2c3m1_xfer; gt9xx: gt9xx5d {compatible goodix,gt9xx;reg 0x5d;gtp_ics_slot_report;touch-gpio gpio2 RK_PA6 IRQ_TYPE_EDGE_RISING;reset-gpio gpio2 RK_PD6 GPIO_ACTIVE_HIGH;//max-x 600;//max-y 1024;tp-size 911;
// power-supply vcc18_lcd_n;status okay;};
};4.2 测试触摸的方法
在kernel增加frame buffer(/dev/fb0)设备节点
RV1126文件系统下面没有/dev/fb0设备节点 进入kernel
cd kernel
make ARCHarm rv1126_defconfig
make ARCHarm menuconfig进入配置
修改位置一如下
位置二如下 之后重新编译生成固件烧写到开发板。
make ARCHarm savedefconfig // 将.config 保存为 deconfig
cp defconfig arch/arm/configs/rv1126_defconfig
cd ..
./build.sh kernel在buildroot中配置增加tslib 在上电后在/etc/profile文件中增加字段 vi /etc/profile
export TSLIB_TSDEVICE/dev/input/event0
export TSLIB_CALIBFILE/etc/pointercal
export TSLIB_CONFFILE/etc/ts.conf
export TSLIB_PLUGINDIR/usr/lib/ts
export TSLIB_FBDEVICE/dev/fb0
export TSLIB_CONSOLEDEVICEnone4.3 测试
校准ts_calibrate打印原始值ts_print_mt 确定左上角是0,0右下角是1024,600观察数据手指从左上角连续滑动到右上角是否数据是连续增加的但凡有不连续掉数据、跳数据的都是有问题的。
五、工作一段时间触摸屏驱动崩溃
在上面触摸屏数据没有问题后驱动工作一段时间就崩溃驱动崩溃的log信息如下
[ 7205.681477] irq 80: nobody cared (try booting with the irqpoll option)
[ 7205.681531] CPU: 0 PID: 367 Comm: dbus-daemon Tainted: G O 4.19.111 #2
[ 7205.681548] Hardware name: Generic DT based system
[ 7205.681592] [b010f408] (unwind_backtrace) from [b010b96c] (show_stack0x10/0x14)
[ 7205.681623] [b010b96c] (show_stack) from [b089b5a4] (dump_stack0x90/0xa4)
[ 7205.681654] [b089b5a4] (dump_stack) from [b016f8a8] (__report_bad_irq0x28/0xcc)
[ 7205.681681] [b016f8a8] (__report_bad_irq) from [b016fcb0] (note_interrupt0x28c/0x2dc)
[ 7205.681710] [b016fcb0] (note_interrupt) from [b016cd8c] (handle_irq_event_percpu0x5c/0x7c)
[ 7205.681741] [b016cd8c] (handle_irq_event_percpu) from [b016cde4] (handle_irq_event0x38/0x5c)
[ 7205.681771] [b016cde4] (handle_irq_event) from [b0170b30] (handle_edge_irq0x134/0x1e4)
[ 7205.681798] [b0170b30] (handle_edge_irq) from [b016bf68] (generic_handle_irq0x24/0x34)
[ 7205.681829] [b016bf68] (generic_handle_irq) from [b03e5250] (rockchip_irq_demux0x10c/0x1bc)
[ 7205.681858] [b03e5250] (rockchip_irq_demux) from [b016bf68] (generic_handle_irq0x24/0x34)
[ 7205.681887] [b016bf68] (generic_handle_irq) from [b016c53c] (__handle_domain_irq0x5c/0xb4)
[ 7205.681919] [b016c53c] (__handle_domain_irq) from [b03d6d8c] (gic_handle_irq0x3c/0x78)
[ 7205.681949] [b03d6d8c] (gic_handle_irq) from [b0101a78] (__irq_svc0x58/0x8c)
[ 7205.681967] Exception stack(0xdcc23cd8 to 0xdcc23d20)
[ 7205.681985] 3cc0: 9e9654d6 00000000
[ 7205.682009] 3ce0: 3e2b9000 b0c52d00 00000202 00000013 dcc22000 00000000 dcc23d28 dcc22000
[ 7205.682033] 3d00: dd364500 dcc23e2c 05355555 dcc23d28 0000000b b010215c 400f0153 ffffffff
[ 7205.682061] [b0101a78] (__irq_svc) from [b010215c] (__do_softirq0xa4/0x274)
[ 7205.682092] [b010215c] (__do_softirq) from [b012ac98] (irq_exit0xdc/0x10c)
[ 7205.682123] [b012ac98] (irq_exit) from [b016c540] (__handle_domain_irq0x60/0xb4)
[ 7205.682153] [b016c540] (__handle_domain_irq) from [b03d6d8c] (gic_handle_irq0x3c/0x78)
[ 7205.682181] [b03d6d8c] (gic_handle_irq) from [b0101a78] (__irq_svc0x58/0x8c)
[ 7205.682198] Exception stack(0xdcc23da8 to 0xdcc23df0)
[ 7205.682219] 3da0: eef0c140 00000002 00000000 0000a863 eef0c140 dd30c8c0
[ 7205.682243] 3dc0: b0d0b980 00000000 b08b15c4 dd30c8c0 dd364500 dcc23e2c 00000000 dcc23df8
[ 7205.682262] 3de0: b01479b8 b08b6244 600f0053 ffffffff
[ 7205.682292] [b0101a78] (__irq_svc) from [b08b6244] (_raw_spin_unlock_irq0x1c/0x4c)
[ 7205.682324] [b08b6244] (_raw_spin_unlock_irq) from [b01479b8] (finish_task_switch0x70/0x204)
[ 7205.682352] [b01479b8] (finish_task_switch) from [b08b15c4] (__schedule0x1fc/0x580)
[ 7205.682380] [b08b15c4] (__schedule) from [b08b1998] (schedule0x50/0xb4)
[ 7205.682410] [b08b1998] (schedule) from [b08b5758] (schedule_hrtimeout_range_clock0x150/0x15c)
[ 7205.682440] [b08b5758] (schedule_hrtimeout_range_clock) from [b08b577c] (schedule_hrtimeout_range0x18/0x20)
[ 7205.682472] [b08b577c] (schedule_hrtimeout_range) from [b025074c] (do_epoll_wait0x38c/0x510)
[ 7205.682502] [b025074c] (do_epoll_wait) from [b0101000] (ret_fast_syscall0x0/0x4c)
[ 7205.682520] Exception stack(0xdcc23fa8 to 0xdcc23ff0)
[ 7205.682542] 3fa0: 00000000 00000074 00000003 ae965608 00000040 ffffffff
[ 7205.682565] 3fc0: 00000000 00000074 0002e4ec 000000fc 00000001 ae965a48 00000002 00000053
[ 7205.682585] 3fe0: 000000fc ae9655e8 a6e4c9c5 a6dcd706
[ 7205.682599] handlers:
[ 7205.682624] [96dc5706] irq_default_primary_handler threaded [ce5e0b64] goodix_ts_irq_handler
[ 7205.682651] Disabling IRQ #80解决方法 在GT911.cfg配置文件中根据下面的内容 将第7个字节中的触发方式改成上升沿触发就好了。改完以后要将第184位的校验码减1。或者按照上面的校验工具计算一下。
六、在LVGL中的触摸修改:上下滑动方向相反
在开发板中运行例程lv_port_linux_frame_buffer触摸左右滑动正常但是上下滑动是反的。直接修改 从触摸屏事件回调evdev_read进去 evdev_init();static lv_indev_drv_t indev_drv_1;lv_indev_drv_init(indev_drv_1); /*Basic initialization*/indev_drv_1.type LV_INDEV_TYPE_POINTER;/*This function will be called periodically (by the library) to get the mouse position and state*/indev_drv_1.read_cb evdev_read; // 这里修改lv_indev_t *mouse_indev lv_indev_drv_register(indev_drv_1);修改
void evdev_read(lv_indev_drv_t * drv, lv_indev_data_t * data)
{struct input_event in;while(read(evdev_fd, in, sizeof(struct input_event)) 0) {if(in.type EV_REL) {if(in.code REL_X)#if EVDEV_SWAP_AXESevdev_root_y in.value;#elseevdev_root_x in.value;#endifelse if(in.code REL_Y)#if EVDEV_SWAP_AXESevdev_root_x in.value;#elseevdev_root_y in.value;#endif} else if(in.type EV_ABS) {if(in.code ABS_X)#if EVDEV_SWAP_AXESevdev_root_y in.value;#elseevdev_root_x in.value;#endifelse if(in.code ABS_Y)#if EVDEV_SWAP_AXESevdev_root_x in.value;#elseevdev_root_y in.value;#endifelse if(in.code ABS_MT_POSITION_X)#if EVDEV_SWAP_AXESevdev_root_y in.value;#elseevdev_root_x in.value;#endifelse if(in.code ABS_MT_POSITION_Y)#if EVDEV_SWAP_AXESevdev_root_x 600-in.value; // 在这里修改#elseevdev_root_y in.value;#endifelse if(in.code ABS_MT_TRACKING_ID) {if(in.value -1)evdev_button LV_INDEV_STATE_REL;else if(in.value 0)evdev_button LV_INDEV_STATE_PR;}} ...
}触摸屏事件是ABS_MT_POSITION_X和ABS_MT_POSITION_Y这里由于上下滑动是相反的所以直接在ABS_MT_POSITION_Y上下方向的最大值600减去得到的值就可以了。 将
else if(in.code ABS_MT_POSITION_Y)
#if EVDEV_SWAP_AXESevdev_root_x in.value; // 在这里修改
#elseevdev_root_y in.value;
#endif改成
else if(in.code ABS_MT_POSITION_Y)
#if EVDEV_SWAP_AXESevdev_root_x 600-in.value; // 在这里修改
#elseevdev_root_y in.value;
#endif滑动就都正常了。
复盘了一下这个问题画了一个礼拜才解决花的时间35H。不过收获真的太多了第一次深入研究这个驱动这么久
