OpenHarmony（鸿蒙南向开发）——轻量系统芯片移植指南(二)

    {
      "subsystem": "security",
      "components": [
        { "component": "hichainsdk", "features":[] },
        { "component": "huks", "features":[]}
      ]
    },

    if (ohos_kernel_type == "liteos_m") {
      defines += [
        "__unix__",
        "MBEDTLS_CONFIG_FILE=<../port/config/config_liteos_m.h>",
      ]
    }

    #if !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES)
    #if !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
        mbedtls_entropy_add_source( ctx, mbedtls_platform_entropy_poll, NULL,
                                    MBEDTLS_ENTROPY_MIN_PLATFORM,
                                    MBEDTLS_ENTROPY_SOURCE_STRONG );
    #endif
    ......
    #if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
        mbedtls_entropy_add_source( ctx, mbedtls_hardware_poll, NULL,
                                    MBEDTLS_ENTROPY_MIN_HARDWARE,
                                    MBEDTLS_ENTROPY_SOURCE_STRONG );
    #endif
    ......
    #endif /* MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES */
    }

    int mbedtls_hardware_poll( void *data,unsigned char *output, size_t len, size_t *olen );

{
   "subsystem": "security",
   "components": [
     { "component": "hichainsdk", "features":[] },
     { "component": "huks", "features":
       [
         "disable_huks_binary = false",
         "disable_authenticate = false"
       ]
     }
   ]
 },

group("wifi") {
  deps = [ "$ohos_board_adapter_dir/hals/communication/wifi_lite/wifiservice:wifiservice" ]
}

`欢迎大家关注工粽号<程序猿百晓生>，可以了解到以下知识点。`
1.OpenHarmony开发基础
2.OpenHarmony北向开发环境搭建
3.鸿蒙南向开发环境的搭建
4.鸿蒙生态应用开发白皮书V2.0 & V3.0
5.鸿蒙开发面试真题（含参考答案） 
6.TypeScript入门学习手册
7.OpenHarmony 经典面试题(含参考答案)
8.OpenHarmony设备开发入门【最新版】
9.沉浸式剖析OpenHarmony源代码
10.系统定制指南
11.【OpenHarmony】Uboot 驱动加载流程
12.OpenHarmony构建系统--GN与子系统、部件、模块详解
13.ohos开机init启动流程
14.鸿蒙版性能优化指南
.......

    { 
        "subsystem": "communication", 
        "components": [ 
            { "component": "wifi_lite", "features":[] }
        ] 
    },

base/iot_hardware/peripheral/
├── BUILD.gn
└── interfaces
    └── kits
        ├── iot_errno.h
        ├── iot_flash.h
        ├── iot_gpio.h
        ├── iot_i2c.h
        ├── iot_pwm.h
        ├── iot_uart.h
        ├── iot_watchdog.h
        ├── lowpower.h
        └── reset.h

import("//build/lite/config/subsystem/lite_subsystem.gni")
import("//build/lite/ndk/ndk.gni")

lite_subsystem("iothardware") {
  subsystem_components = [
    "$ohos_vendor_adapter_dir/hals/iot_hardware/wifiiot_lite:hal_iothardware",
  ]
}
if (ohos_kernel_type == "liteos_m") {
  ndk_lib("iothardware_ndk") {
    deps = [
      "$ohos_vendor_adapter_dir/hals/iot_hardware/wifiiot_lite:hal_iothardware", #依赖厂商的适配
    ]
    head_files = [ "//base/iot_hardware/peripheral/interfaces/kits" ]
  }
}

    { 
        subsystem": "iot_hardware", 
        components": [ 
            { "component": "iot_controller", "features":[] }
        ] 
    },

    hals/iot_hardware/wifiiot_lite
    ├── BUILD.gn
    ├── iot_flash.c
    ├── iot_gpio.c
    ├── iot_i2c.c
    ├── iot_lowpower.c
    ├── iot_pwm.c
    ├── iot_reset.c
    ├── iot_uart.c
    └── iot_watchdog.c

    static_library("hal_iothardware") {   #目标名
        sources = [                       #厂商适配的源文件
          "iot_watchdog.c",
          "iot_reset.c",
          "iot_flash.c",
          "iot_i2c.c",
          "iot_gpio.c",
          "iot_pwm.c",
          "iot_uart.c"
        ]
        include_dirs = [ ]
    }

{
  "subsystem": "distributed_schedule",
  "components": [
    { "component": "system_ability_manager", "features":[] }  # 此处部件名不同版本可能有变化，请根据实际代码填写
  ]
},
{
  "subsystem": "hiviewdfx",
  "components": [
    { "component": "hilog_lite", "features":[] },
    { "component": "hievent_lite", "features":[] }
  ]
},