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GPIO controller configuration method and system

A configuration method and controller technology, applied in the computer field, to achieve the effect of ensuring the fluency of the system

Active Publication Date: 2020-12-11
LOONGSON TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the kernel of the operating system, various attributes of all GPIO controllers need to be initialized. However, at present, the attributes of GPIO controllers are rarely specified to complete the initialization scheme of GPIO controllers.

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  • GPIO controller configuration method and system

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] In the GPIO controller configuration method and system of the embodiments of the present invention, in the GPIO controller initialization process, various attributes and corresponding attribute values ​​of the GPIO controller can be specified through the corresponding DSD object in the DSDT of the ACPI table, thereby realizing Based on...

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Abstract

The embodiment of the invention provides a GPIO controller configuration method and system, wherein the method comprises the steps: obtaining a target equipment identifier corresponding to a target GPIO controller when the target GPIO controller is initialized; calling target configuration information corresponding to the target equipment identifier from an ACPI table, wherein the target configuration information is pre-configured in the ACPI table for the target GPIO controller; and configuring the attribute of the target GPIO controller based on the target configuration information. According to the embodiment of the invention, initialization of the GPIO controller can be realized on the basis of the ACIP table, so that the GPIO controller can normally work on the basis of the specifiedconfiguration information.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a GPIO controller configuration method and a GPIO controller configuration system. Background technique [0002] GPIO (General-purpose input / output) is the abbreviation of general-purpose programmable input and output ports. In the operating system, it is necessary to control many external devices or circuits with simple structures. Some of these devices need to be controlled by the CPU, and some require the CPU to provide input signals. For device control, it is more complicated to use the traditional serial port or parallel port, so GPIO is usually used on the microprocessor. [0003] Wherein, the GPIO controller refers to a device that controls the input and output of the GPIO. In the kernel of the operating system, various attributes of all GPIO controllers need to be initialized. However, at present, the attributes of the GPIO controller are rarely specified to complete t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38G06F13/40
CPCG06F13/38G06F13/4068Y02P90/02
Inventor 高翔李雪峰
Owner LOONGSON TECH CORP
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