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android机器要求接两个屏#xff08;lvdsmipi#xff09;两个usb tp要实现双屏异触。由于mipi的方向和lvds方向转成一样的了。两个usb tp的方向在异显示的时候也要作用一样。这个时候要根据pid和vid修改触摸上报的数据。usb tp有通用的触…一问题描述
android机器要求接两个屏lvdsmipi两个usb tp要实现双屏异触。由于mipi的方向和lvds方向转成一样的了。两个usb tp的方向在异显示的时候也要作用一样。这个时候要根据pid和vid修改触摸上报的数据。usb tp有通用的触摸驱动/kernel/drivers/hid/hid-multitouch.c。 即通过vid pid区分
二修改方法
1. device/rockchip/rk3288/下添加idc文件
Vendor_222a_Product_0001.idc#*****************************************************
# Input Device Configuration File for the generaltouch touch screen.
#*****************************************************# Basic Parameters
touch.deviceType touchScreen
touch.orientationAware 1keyboard.layout qwerty
keyboard.characterMap qwerty
keyboard.orientationAware 1
keyboard.builtIn 1cursor.mode navigation
cursor.orientationAware 1device.internal 0Vendor_0457_Product_0819.idc#*****************************************************
# Input Device Configuration File for the generaltouch touch screen.
#*****************************************************# Basic Parameters
touch.deviceType touchScreen
touch.orientationAware 1keyboard.layout qwerty
keyboard.characterMap qwerty
keyboard.orientationAware 1
keyboard.builtIn 1cursor.mode navigation
cursor.orientationAware 1device.internal 12. device/rockchip/rk3288/device.mk,拷贝到系统中
# for usb tp
PRODUCT_COPY_FILES \device/rockchip/rk3288/Vendor_222a_Product_0001.idc:system/usr/idc/Vendor_222a_Product_0001.idc \device/rockchip/rk3288/Vendor_0457_Product_0819.idc:system/usr/idc/Vendor_0457_Product_0819.idc3. kernel/drivers/hid/hid-multitouch.c修改驱动
diff --git a/kernel/drivers/hid/hid-multitouch.c b/kernel/drivers/hid/hid-multitouch.c
old mode 100644new mode 100755
index 9de379c1b3..b8456b1e50
--- a/kernel/drivers/hid/hid-multitouch.cb/kernel/drivers/hid/hid-multitouch.c-98,7 98,23 struct mt_fields {unsigned usages[HID_MAX_FIELDS];unsigned int length;
};
-
#define GTP_SWAP(x, y) do{\typeof(x) z x;\x y;\y z;\}while (0)#define MAINmGtpChange_X2Y 1
#define MIANmGtp_X_Reverse 1
#define MAINNmGtp_Y_Reverse 0
static int MAINX_max0;
static int MAINY_max0;#define AUXmGtpChange_X2Y 1
#define AUXmGtp_X_Reverse 1
#define AUXNmGtp_Y_Reverse 0
static int AUXX_max0;
static int AUXY_max0;
struct mt_device {struct mt_slot curdata; /* placeholder of incoming data */struct mt_class mtclass; /* our mt device class */-461,6 477,14 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,case HID_UP_GENDESK:switch (usage-hid) {case HID_GD_X:if (hdev-vendor0x0457 hdev-product0x0819){MAINX_max field-logical_maximum; }else if (hdev-vendor0x222a hdev-product 0x0001){AUXX_max field-logical_maximum;}if (prev_usage (prev_usage-hid usage-hid)) {hid_map_usage(hi, usage, bit, max,EV_ABS, ABS_MT_TOOL_X);-476,6 500,14 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,mt_store_field(usage, td, hi);return 1;case HID_GD_Y:if (hdev-vendor0x0457 hdev-product0x0819){MAINY_max field-logical_maximum;}else if (hdev-vendor0x222a hdev-product 0x0001){AUXY_max field-logical_maximum;}if (prev_usage (prev_usage-hid usage-hid)) {hid_map_usage(hi, usage, bit, max,EV_ABS, ABS_MT_TOOL_Y);-613,8 645,10 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)* this function is called when a whole contact has been processed,* so that it can assign it to a slot and store the data there*/
-static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
static void mt_complete_slot(struct mt_device *td, struct input_dev *input,struct hid_device *hid_device)
{if ((td-mtclass.quirks MT_QUIRK_CONTACT_CNT_ACCURATE) td-num_received td-num_expected)return;-649,7 683,33 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)int major max(s-w, s-h) 1;int minor min(s-w, s-h) 1;
- input_event(input, EV_ABS, ABS_MT_POSITION_X, s-x);
if (hid_device-vendor0x0457 hid_device-product0x0819)
{#if MAINmGtpChange_X2YGTP_SWAP(s-x, s-y);#endifif(MIANmGtp_X_Reverse){s-x MAINX_max -s-x; }if(MAINNmGtp_Y_Reverse){s-y MAINY_max - s-y;}
}
else if (hid_device-vendor0x222a hid_device-product0x0001)
{#if AUXmGtpChange_X2YGTP_SWAP(s-x, s-y);#endifif(AUXmGtp_X_Reverse){s-x AUXX_max -s-x;}if(AUXNmGtp_Y_Reverse){s-y AUXY_max - s-y;}
}input_event(input, EV_ABS, ABS_MT_POSITION_X, s-x);input_event(input, EV_ABS, ABS_MT_POSITION_Y, s-y);input_event(input, EV_ABS, ABS_MT_TOOL_X, s-cx);input_event(input, EV_ABS, ABS_MT_TOOL_Y, s-cy);-752,7 812,7 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,if (usage-usage_index 1 field-report_count) {/* we only take into account the last report. */if (usage-hid td-last_slot_field)
- mt_complete_slot(td, field-hidinput-input);mt_complete_slot(td, field-hidinput-input,hid);}}定义宏参数含义 define MAINmGtpChange_X2Y 1 //为主屏tp的x和y互换宏定义 define MIANmGtp_X_Reverse 1 //为主屏tp的x反向宏定义 define MAINNmGtp_Y_Reverse 0 //为主屏tp的y反向宏定义 define AUXmGtpChange_X2Y 1 //为副屏tp的x和y互换宏定义 define AUXmGtp_X_Reverse 1 //为副屏tp的x反向宏定义 define AUXNmGtp_Y_Reverse 0 //为副屏tp的y反向宏定义 以上修改在rk3288_7.1上实测有效其他平台可参考修改整体实现方法类似。
关于idc文件控制触摸屏的属性可参考链接Android系统 调试usb接口触摸屏问题
