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1. 发明申请

US20150277778A1 VIRTUAL GENERAL-PURPOSE I/O CONTROLLER 有权
标题翻译：虚拟通用I / O控制器
公开(公告)号：US20150277778A1
公开(公告)日：2015-10-01
申请号：US14227735
申请日：2014-03-27
申请人： Nicholas J. Adams , Robert E. Gough , Sai Prasad Paithara Balagangadhara , Pronay Dutta
发明人： Nicholas J. Adams , Robert E. Gough , Sai Prasad Paithara Balagangadhara , Pronay Dutta
IPC分类号： G06F3/06 , G06F13/24
CPC分类号： G06F3/0611 , G06F3/0659 , G06F3/0673 , G06F13/105 , G06F13/24 , G06F13/385
摘要： Technologies for virtual general purpose I/O (GPIO) include a computing device having a virtual GPIO controller driver, a virtual GPIO controller firmware interface, and a virtual GPIO controller. The driver receives a GPIO command from an operating system of the computing device. The GPIO command specifies an operation to be performed by a GPIO pin. The driver sends the GPIO command to the firmware interface. In response to the firmware interface receiving the command, the virtual GPIO controller emulates a virtual GPIO pin to implement the GPIO command. The firmware interface may trigger an interrupt that can be received by the operating system. The virtual GPIO controller may emulate the virtual GPIO pin using firmware-reserved backing memory, an embedded controller, or an interface to a peripheral device of the computing device. The firmware interface may be an ACPI control method. Other embodiments are described and claimed.
摘要翻译：用于虚拟通用I / O（GPIO）的技术包括具有虚拟GPIO控制器驱动程序，虚拟GPIO控制器固件接口和虚拟GPIO控制器的计算设备。驱动程序从计算设备的操作系统接收GPIO命令。 GPIO命令指定要由GPIO引脚执行的操作。驱动程序将GPIO命令发送到固件界面。响应固件接口接收命令，虚拟GPIO控制器仿真虚拟GPIO引脚来实现GPIO命令。固件接口可能会触发操作系统可以接收的中断。虚拟GPIO控制器可以使用固件保留后备内存，嵌入式控制器或与计算设备的外围设备的接口来模拟虚拟GPIO引脚。固件接口可以是ACPI控制方法。描述和要求保护其他实施例。

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