篇头
- 全志H713 Soc是一颗 A53四核心，支持MAX 2GB DDR， 支持1920x1080P LVDS接口， 支持梯形校正功能的芯片，非常适合用于开发投影仪，尤其是低成本的LCD投影。
- 本文详细介绍此平台，配置一个新的红外遥控器的方法。
一、遥控器规格
- 先拿到遥控器的规格书，获取用户码（头码）及其他按键的硬件码值
- 确认IR的红外协议，此案例IR为NEC协议
二、NEC IR 配置方法
2.1 驱动开启NEC协议
- 全志H713已默认开启NEC IR驱动
- 可在menuconfig中查找下图【Remote controller support】配置的位置，进入后开启相关IR驱动
2.2 添加key-map文件
-
根据IR规格书，用户码（头码）为0x807f为例，则新建如下文件，头码字节序要颠倒一下
-
vendor\aw\homlet\hardware\input\multi_ir\keylayout\customer_ir_7f80.kl
-
如下，根据IR规格，填写键值映射关系
key 6 BACK
key 4 MENU
key 8 DPAD_CENTER
key 27 DPAD_DOWN
key 5 DPAD_UP
key 1 HOME
key 7 DPAD_LEFT
key 9 DPAD_RIGHT
key 12 VOLUME_UP
key 14 VOLUME_DOWN
key 18 POWER
key 61 TV_INPUT2.3 将.kl文件追加到编译系统
- 编辑 aw/homlet/hardware/input/multi_ir/multiir.mk
diff --git a/vendor/aw/homlet/hardware/input/multi_ir/multiir.mk b/vendor/aw/homlet/hardware/input/multi_ir/multiir.mk
index 9e700162ab..5aefa94f73 100644
--- a/vendor/aw/homlet/hardware/input/multi_ir/multiir.mk
+++ b/vendor/aw/homlet/hardware/input/multi_ir/multiir.mk
@@ -13,6 +13,7 @@ BASE_KL_COPY_LIST := virtual-remote.kl \customer_rc5_ir_04.kl \BASE_KL_COPY_LIST += customer_ir_9f00.kl \
+ customer_ir_7f80.kl \ ###<--- 添加自己的.kl到这里customer_ir_dd22.kl \customer_ir_fb04.kl \customer_ir_ff00.kl \
2.4 配置dts
- 此处配置主要影响到待机后的电源键的响应，需分别配置borad.dts和uboot-board.dts
- longan\device\config\chips\h713\configs\tuna_p3\linux-5.4\board.dts
- longan\device\config\chips\h713\configs\tuna_p3\uboot-board.dts
- 如下图，添加DC ON按键，其中ir_addr为IR用户码（头码）
（1）board.dts
diff --git a/longan/device/config/chips/h713/configs/tuna_p3/linux-5.4/board.dts b/longan/device/config/chips/h713/configs/tuna_p3/linux-5.4/board.dts
index af9d8b7e2f..38baa35c8f 100755
--- a/longan/device/config/chips/h713/configs/tuna_p3/linux-5.4/board.dts
+++ b/longan/device/config/chips/h713/configs/tuna_p3/linux-5.4/board.dts
@@ -62,7 +62,7 @@gpio_group = "PL";gpio_pin = <9>;gpio_function = <3>;
- count = <14>;
+ count = <15>; #### <-- 1. 增加1个按键的count数ir_power_key_code0 = <0x40>;ir_addr_code0 = <0xfe01>;ir_power_key_code1 = <0x1a>;
@@ -91,6 +91,8 @@ir_addr_code12 = <0xfb04>;ir_power_key_code13 = <0x42>;ir_addr_code13 = <0xbf00>;
+ ir_power_key_code14 = <0x12>; #### <-- 2. 增加客制化的电源按键HW按键值
+ ir_addr_code14 = <0x7f80>; #### <-- 3. 增加客制化IR的用户头码，注意字节序颠倒};（2）uboot-board.dts （同理，修改此文件）
diff --git a/longan/device/config/chips/h713/configs/tuna_p3/uboot-board.dts b/longan/device/config/chips/h713/configs/tuna_p3/uboot-board.dts
index d166e3fa05..71adc28d51 100644
--- a/longan/device/config/chips/h713/configs/tuna_p3/uboot-board.dts
+++ b/longan/device/config/chips/h713/configs/tuna_p3/uboot-board.dts
@@ -62,7 +62,7 @@gpio_group = "PL";gpio_pin = <9>;gpio_function = <3>;
- count = <14>;
+ count = <15>; ir_power_key_code0 = <0x40>;@@ -73,7 +73,7 @@ir_power_key_code13 = <0x42>;ir_addr_code13 = <0xbf00>;
+ ir_power_key_code14 = <0x12>;
+ ir_addr_code14 = <0x7f80>;};};
三、其他IR协议
- 以customer_rc5_ir_04.kl举例，将对应的协议名称追加在文件名中即可
- 其余与NEC配置方法相同
四、附录
4.1 头码配置无效
- 规格所写头码为0x807f，系统无法识别，将出现下面的现象
- getevent 命令显示：按键无效，所有按键皆为0000
console:/ # getevent /dev/input/event1: 0004 0004 017f801b
/dev/input/event1: 0000 0000 00000000
/dev/input/event1: 0004 0004 007f801b
/dev/input/event1: 0000 0000 00000000
4.2 头码配置有效
- 将头码的字节序做一下颠倒，变为0x7f80
- 按键生效的打印情况：
console:/ # getevent
add device 1: /dev/input/event4name: "soc@2900000:gpio_keys"
add device 2: /dev/input/event3name: "sunxi-ir-uinput"
add device 3: /dev/input/event0name: "sunxi-gpadc0"
add device 4: /dev/input/event1name: "sunxi-ir"
add device 5: /dev/input/event2name: "audiocodec sunxi Audio Jack"（1）上
/dev/input/event3: 0001 0013 00000001
/dev/input/event1: 0004 0004 017f8005 ###### 数据分解： 01-7f80-05 ,0x05为 UP key
/dev/input/event3: 0000 0000 00000000
/dev/input/event1: 0000 0000 00000000/dev/input/event3: 0001 0013 00000000
/dev/input/event1: 0004 0004 007f8005
/dev/input/event3: 0000 0000 00000000
/dev/input/event1: 0000 0000 00000000（2）下
/dev/input/event1: 0004 0004 017f801b ###### 数据分解： 01-7f80-1b ,0x1b为 DOWN key
/dev/input/event3: 0001 0014 00000001
/dev/input/event1: 0000 0000 00000000
/dev/input/event3: 0000 0000 00000000
/dev/input/event3: 0001 0014 00000000
/dev/input/event1: 0000 0000 00000000
/dev/input/event3: 0000 0000 00000000（3）左
/dev/input/event1: 0004 0004 017f8007
/dev/input/event3: 0001 0015 00000001
/dev/input/event1: 0000 0000 00000000
/dev/input/event3: 0000 0000 00000000/dev/input/event1: 0004 0004 007f8007
/dev/input/event1: 0000 0000 00000000
/dev/input/event3: 0001 0015 00000000
/dev/input/event3: 0000 0000 00000000（4）右
/dev/input/event1: 0004 0004 017f8009
/dev/input/event3: 0001 0016 00000001
/dev/input/event1: 0000 0000 00000000
/dev/input/event3: 0000 0000 00000000/dev/input/event1: 0004 0004 007f8009
/dev/input/event3: 0001 0016 00000000
/dev/input/event1: 0000 0000 00000000
/dev/input/event3: 0000 0000 00000000（5）关机
/dev/input/event1: 0004 0004 017f8012
/dev/input/event3: 0001 0074 00000001
/dev/input/event1: 0000 0000 00000000
/dev/input/event3: 0000 0000 00000000
/dev/input/event1: 0004 0004 007f8012
/dev/input/event3: 0001 0074 00000000
/dev/input/event1: 0000 0000 00000000
/dev/input/event3: 0000 0000 00000000
4.3 dumpsys input
130|console:/ # dumpsys input
INPUT MANAGER (dumpsys input)Input Manager State:Interactive: trueSystem UI Visibility: 0x8008Pointer Speed: 0Pointer Gestures Enabled: trueShow Touches: falsePointer Capture Enabled: falseEvent Hub State:BuiltInKeyboardId: -2Devices:-1: VirtualClasses: 0x40000023Path: <virtual>Enabled: trueDescriptor: a718a782d34bc767f4689c232d64d527998ea7fdLocation: ControllerNumber: 0UniqueId: <virtual>Identifier: bus=0x0000, vendor=0x0000, product=0x0000, version=0x0000KeyLayoutFile: /system/usr/keylayout/Generic.klKeyCharacterMapFile: /system/usr/keychars/Virtual.kcmConfigurationFile: HaveKeyboardLayoutOverlay: falseVideoDevice: <none>1: sunxi-ir-uinputClasses: 0x0000002bPath: /dev/input/event3Enabled: trueDescriptor: 0a253e777d1b2169367be63d7c9054e7991953a6Location: ControllerNumber: 0UniqueId: Identifier: bus=0x0019, vendor=0x0000, product=0x0000, version=0x0004KeyLayoutFile: /vendor/usr/keylayout/sunxi-ir-uinput.klKeyCharacterMapFile: /system/usr/keychars/Generic.kcmConfigurationFile: HaveKeyboardLayoutOverlay: falseVideoDevice: <none>2: sunxi-irClasses: 0x00000001Path: /dev/input/event1Enabled: trueDescriptor: 485d69228e24f5e46da1598745890b214130dbc4Location: sunxi-ir/input0ControllerNumber: 0UniqueId: Identifier: bus=0x0019, vendor=0x0001, product=0x0001, version=0x0100KeyLayoutFile: /vendor/usr/keylayout/sunxi-ir.klKeyCharacterMapFile: /system/usr/keychars/Generic.kcmConfigurationFile: HaveKeyboardLayoutOverlay: falseVideoDevice: <none>4: audiocodec sunxi Audio JackClasses: 0x00000081Path: /dev/input/event2Enabled: trueDescriptor: d6a59aa863179ab43a39346203ca02f7639be982Location: ALSAControllerNumber: 0UniqueId: Identifier: bus=0x0000, vendor=0x0000, product=0x0000, version=0x0000KeyLayoutFile: /system/usr/keylayout/Generic.klKeyCharacterMapFile: /system/usr/keychars/Generic.kcmConfigurationFile: HaveKeyboardLayoutOverlay: falseVideoDevice: <none>5: soc@2900000:gpio_keysClasses: 0x00000001Path: /dev/input/event4Enabled: trueDescriptor: d2c52ff0f656fac4cd7b7a118d575e0109a9fe1cLocation: gpio-keys/input0ControllerNumber: 0UniqueId: Identifier: bus=0x0019, vendor=0x0001, product=0x0001, version=0x0100KeyLayoutFile: /system/usr/keylayout/Generic.klKeyCharacterMapFile: /system/usr/keychars/Generic.kcmConfigurationFile: HaveKeyboardLayoutOverlay: falseVideoDevice: <none>Unattached video devices:<none>
