WIC

概述

WIC（wake-up interrupt controller，唤醒中断控制器）用于中断检测并将处理器从深度睡眠模式唤醒。

WQ WIC 模块提供接口控制唤醒当前 core 以及当前 core 唤醒其他 core 的 API，并可以让其保持通电状态的接口。

用法流程

• 初始化 wq_wic_init()

• 唤醒一个 core wq_wic_awake()

• 唤醒 core，并让其保持唤醒 wq_wic_keep_poweron()

• 释放一个 core 的唤醒状态 wq_wic_release()

• 注册一个当前 core 中断唤醒后函数句柄 wq_wic_register_wakeup_handle()

• 注销 wq_wic_deinit()

API 介绍

This section introduces the WIC module's functions and how to use this driver.

Typedefs

typedef void (*wq_wic_awake_callback_t)(WQ_CORES core)

Trigger remote core awake down.

Param core:

awakened core

typedef void (*wq_wic_wakeup_handle_t)(WQ_CORES core)

Current core wakeup by remote core.

Param core:

the core that wakes us up

Functions

WQ_RET wq_wic_init(void)

Init wakeup interrupt controller driver.

参见

WQ_RET

返回:

WQ_RET

WQ_RET wq_wic_deinit(void)

Deinit wakeup interrupt controller driver.

参见

WQ_RET

返回:

WQ_RET

WQ_RET wq_wic_awake(WQ_CORES core)

Instantly wakes up a core once.

参见

WQ_RET

参数:

core -- [in] CORE to be awake

返回:

WQ_RET

WQ_RET wq_wic_keep_poweron(WQ_CORES core, wq_wic_awake_callback_t cb)

Instantly wakes up a core and keep it poweron, when success invoke the callback.

参见

WQ_RET

参数:

• core -- [in] CORE to be awake

• cb -- [in] the function to be invoked when core wakeup

返回:

WQ_RET

WQ_RET wq_wic_release(WQ_CORES core)

Release a core's awaking status.

参见

WQ_RET

参数:

core -- [in] CORE to be release

返回:

WQ_RET

WQ_RET wq_wic_register_wakeup_handle(wq_wic_wakeup_handle_t handler)

Register wakeup interrupt controller wakeup int handler.

参见

WQ_RET

参数:

handler -- [in] WIC wakeup hander

返回:

WQ_RET

bool wq_wic_if_be_trigger(void)

Determine whether to prevent sleep.

参见

bool

返回:

bool