91 results about "Advanced Configuration and Power Interface" patented technology

Embodiments of the invention provide a method and an apparatus to collect and dynamically update system locality information during runtime. In one method embodiment, the present invention collects system locality information at boot time to be provided to an operating system. The system locality information describes distances between devices within an integrated processing system. The operating system is then notified that a triggering event has occurred that may potentially alter the distances between devices within the integrated processing system. Upon receipt of this notification, the operating system invokes an Advanced Configuration and Power Interface (ACPI) procedure that provides updated system locality information during runtime to reflect the changes in distances between devices within the integrated processor system after the occurrence of the triggering event.

A computer system configured to control advanced configuration and power interface ACPI information is provided. The computer system includes a non-volatile memory configured to store an ACPI table, and a processor configured to execute a unified extensible firmware interface (UEFI), wherein a boot service of the UEFI provides a shell application, and the shell application includes an extended command to control information of the ACPI table.

A method of configuring a computer system capable of being woken up on a LAN A core power is actuated for an interval by performing a Pre-Advanced Configuration and Power Interface (Pre-ACPI) routine. Next, a PCI clock signal is retrieved in the fixed interval and then an Ethernet ID is loaded using the PCI clock signal, so as to set a south bridge to a standby mode capable of receiving a wake-up event. As a result, use of an oscillator in conventional methods can be reduced, and the computer system can be configured to be capable of being woken-up on LAN, without requiring the start-up procedure, so that the computer system may be awoken on the LAN even after an abnormal shutdown.

A computer system having an operating system which complies with the advanced configuration and power interface (ACPI) specification comprises a temperature sensor for sensing an inner temperature of the computer system and for generating an alarm signal when the sensed temperature exceeds a predetermined value, a bridge controller for generating a system management interrupt (SMI) in response to the alarm signal, a basic input-output system (BIOS) read-only memory (ROM) for storing a power management routine, and a power management processor for receiving a power control command signal generated by the power management routine in response to the SMI, and for generating a system command interrupt (SCI). The operating system causes the computer system to enter a “sleep” state in response to the SCI. The computer system enters the “sleep” state when the inner temperature exceeds the predetermined value, and restores data normally when the computer system resumes operation.

In a portable computing device having a system-on-chip (SoC) Acorn RISC Machine (ARM)-based resource architecture, a peripheral component interconnect express (PCIe) bus is used to insert PCIe device memory into system memory absent a PCIe driver. During a PCIe initialization, the contents of PCIe base address registers (BARs) are mapped or otherwise updated to coincide with values assigned to the PCIe device in the advanced configuration and power interface (ACPI) tables.

Exemplary features pertain to providing trusted platform module (TPM) support for ARM®-based systems or other Reduced Instruction Set Computing (RISC) systems. In some examples, secure firmware (e.g., TrustZone firmware) operates as a shim between an unsecure high level operating system (HLOS) and a discrete TPM chip or other trusted execution environment component. The secure firmware reserves a portion of non-secure memory for use as a command response buffer (CRB) control block accessible by the HLOS. The secure firmware translates and relays TPM commands/responses between the HLOS and the TPM via the non-secure CRB memory. The system may also include various non-secure firmware components such as Advanced Configuration and Power Interface (ACPI) and Unified Extensible Firmware Interface (UEFI) components. Among other features, the exemplary system can expose the TPM to the HLOS via otherwise standard UEFI protocols and ACPI tables in a manner that is agnostic to the HLOS.

A method and system that enables customized computer machines to be more readily developed by removing the function of resource translation out of the hardware abstraction layer (HAL). A machine manufacturer describes a machine in firmware, such as accordance with the Advanced Configuration and Power Interface (ACPI) specification, using ACPI machine language (AML). Operating system components such as a Plug and Play (PnP) manager in the kernel, in conjunction with an ACPI driver, interpret the description information and locate resources (bus bridges) for which translation is needed. For any arbitrary bus architecture or CPU to PCI bridge implementation that can be expressed, e.g., in ACPI firmware, the invention provides a translator external to the HAL. In one implementation, a PnP driver communicates with the ACPI driver and various drivers in driver stacks via I/O request packets (IRPs) to look for resource translators. The ACPI driver analyzes the machine description and returns a translator if found for such a resource. The resource is then configured to output cycles based on the translator.

A method of allocating a resource in a computer system having a plurality of operating systems, and related system, are disclosed. In at least one embodiment, the method includes providing an advanced configuration and power interface (ACPI) operating to facilitate interactions between at least one of the plurality of the operating systems and one or more of the resource, a hardware device, and firmware, and determining whether the resource is allocated to a first of the plurality of operating systems. The method further includes ejecting the resource from the first operating system, and allocating the resource to a second of the plurality of operating systems.

The invention provides a method and a mainboard for achieving a PCIE equipment hot-plug function through BIOS. Through a simple hardware circuit and simple BIOS program design, the method achieves the PCIE equipment hot-plug function in a Non-ACPI (non-advanced configuration and power interface) environment and makes up loss of function in the Non-ACPI environment without adding the hardware cost; a single GPIO (general purpose input/output) unit is connected with a corresponding light emitting diode to complete communication with operators and to avoid misoperation. In term of memory resource, the method saves resource reservation, and after equipment is plugged, resources are obtained and distributed to the equipment, so that the utilization rate of the memory resources can be increased; during resource distribution, employment of other equipment led by resource redistribution to other equipment can be avoided, so that influence of equipment plugging and unplugging on system can be reduced to the maximum degree; equipment hot-plugging is detected at double in-position pin angles without button prompting.

Computer data is transferred from a packed to an unpacked data structure in a computer that enforces aligned memory access and for which the associated compiler lacks a compile-time directive to pack data structures. In an exemplary embodiment, the invention is employed in the pre-processing of Advanced Configuration and Power Interface (ACPI) tables stored in little-endian format for use by a big-endian operating system.

A method and apparatus for driving a non-native SATA hard disk applied in a computer is provided. The computer includes a basic input/output system (BIOS) and an operating system (OS), both of which support an advanced configuration and power interface (ACPI). The non-native SATA hard disk includes a conversion interface and a parallel ATA (PATA) internal disk. First, issue an interrupt. Then, process an interrupt handle routine for detecting and saving the timing mode of the PATA internal disk. Next, load a default IDE driver. Then, report the saved timing mode. Finally, set the SATA hard disk according to the timing mode.

The present invention relates to a data processing system method and, more particularly, to a system and method for manipulating CMOS parameters that are stored within a CMOS memory, via a user interface other than the conventional BIOS set up program. Embodiments of the present invention use a Root System Description Table Pointer as prescribed by the Advanced Configuration and Power Interface specification to read an operating system accessible table contained within conventional memory. The table stores access data to allow access to at least a subset of the BIOS CMOS parameters. Advantageously, since the access data for the CMOS parameters are stored within conventional memory, a user interface that is more sophisticated than a conventional BIOS set up program user interface can be used for manipulating those values. Still further, tokens are used to present a system independent way of representing the CMOS parameters to higher level programs. These tokens may remains constant regardless of underlying changes to the CMOS parameters.

An inter-module data communication control method and system for ACPI (Advanced Configuration and Power Interface) and BIOS (Basic Input/Output System) is proposed, which is designed for use with a computer platform for providing an inter-module data communication control mechanism, which is characterized by the use of SMI (System Management Interrupt) for the ACPI to communicate with the BIOS of the computer platform. This feature allows BIOS engineers to modify or upgrade ACPI functionality without having to modify any ASL/AML (ACPI Source Language, ACPI Machine Language) code, such that the ACPI development can be more convenient and efficient than prior art. Moreover, it also allows the ASL/AML code for ACPI drivers to have cross-platform capability, which makes programming much easier than prior art

The invention relates to a power supply protection circuit for a main board used for protecting the main board of a power cord in an unconnected central processor unit. The power supply protection circuit for the main board comprises an input and output controller, an advanced configuration and a power interface controller. The power supply protection circuit for the main board also comprises a controlling signal generation circuit and an enabling signal generating circuit. The controlling signal generation circuit generates a controlling signal according to the power supply condition of the central processor unit and the signal is sent into the input and output controller. At the same time, the enabling signal generating circuit generates an enabling signal which causes the input and output controller to process the controlling signal normally. When the power cord of the central processor is wrongly connected, the controlling signal causes the input and output controller to send a shutdown signal to the advanced configuration and the power interface controller to stop power supply. The power supply protection circuit of the main board can carry out protection for the main board with an occurrence of abnormal power state on the central processor unit.

A method and a related apparatus for using a dynamic random access memory (DRAM) in substitution of a hard disk drive in a computer system. The computer system has a request format transformation module for transforming a hard disk request signal into a corresponding memory request signal, a memory read/write control circuit for accessing the DRAM, and a memory refresh circuit for periodically refreshing the DRAM to maintain data stored in the DRAM. When the computer system issues the hard disk request signal, the hard disk request signal is transformed into the corresponding memory request signal to access the DRAM instead of a hard disk drive. In addition, when the computer system executes an S4 or S5 state according to the specification of advanced configuration and power interface, the memory refresh circuit will repeatedly refresh the DRAM.

The invention discloses a building automatic control system based on a building automatic control network (BACnet) and an European installation bus (EIB) protocol and a dual-protocol conversion method thereof. The building automation system consists of BACnet subnets connected through Routers or network bridges, EIB bus subnets connected through BACnet/EIB gateways and a BACnet monitoring center. The gateways are respectively connected to BACnet/multi-service transport platform (MSTP) subnets and the EIB bus subnets through MSTP modules and EIB bus coupling units. Gateway software consists of a BACnet message analyzing unit, an EIB message analyzing unit and a BACnet/EIB protocol conversion unit. The BACnet/EIB protocol conversion unit comprises a dual-protocol address conversion module, a dual-protocol advanced configuration and power interface (APCI) conversion module, a dual-protocol application program data conversion module, a dual-protocol address contingency table and a dual-protocol APCI comparison table. The BACnet/EIB gateways integrate the EIB into the BACnet, and two types of building automatic control protocols complement each other's advantages to enable the building automatic control system based on the EIB and the BACnet to have excellent cost performance.

This present invention describes a performance control method for a computer. An advanced configuration and power interface (ACPI) is used to control the performance of desktop CPU. According to this method, the control items in the ACPI are set according to the throttling function setting and according to the requirement of the user to set the number of the related performance states supported by the CPU. Then, the operation system selects the related performance state of the CPU according to the required system power.

An invention is disclosed that provides a mechanism for exposing to user mode applications the features and information enabled by the Advanced Configuration and Power Interface (“ACPI”) specification. The present invention provides a generic mapping driver that executes in kernel mode, and that makes calls to the ACPI driver accessible by user mode applications. The mapping driver may be a part of a management instrumentation system, such as the Windows Management Instrumentation (“WMI”) system. The WMI system provides an interface through which instrumented components, such as hardware devices, can provide information and notification to management applications in user mode through a consistent management information store. The mapping driver provides access to the ACPI system from the WMI management system.

The invention relates to a synchronous obtaining method of power state, which is applied in a power system of a computer, wherein the power system comprises an ACPI (Advanced Configuration and Power Interface) and is connected to a BIOS (Basic Input Output System); the BIOS is connected to a baseplate managing controller; the method comprises the following steps of: running an operation system of the computer after the power system is started; when the power state of the ACPI is detected by the BIOS to be changed, entering into a system managing terminal and processing the process by means of the operation system; and sending a demand to the baseplate managing controller and informing the baseplate managing controller of the power state of the ACPI by means of the BIOS. By utilizing the method provided by the invention, a user can synchronously obtain the power state through the BIOS and the baseplate managing controller.

A mechanism for conserving power consumption includes a processor, a memory, and a memory control hub ("MCH"). The memory is coupled to the processor and MCH is also coupled to the processor. MCH is further configured to switch between at least two power consumption modes for conserving power consumption.</PTEXT>