Marvell International Limited

Marvellworld Trade Ltd.

Marvell Asia Pte., Ltd.

James Jan

Frank Huang

Robert Lee, Jr

Xiaohua Luo

Matthew L Semersky

Yao Chen

Bing Zhao

Zheng Cao

Shuangqing Yuan

Long Chow

Zhenyu Zhang

Tao Song

George Lee

Amey Dattatray Inamdar

Chen Fan

Cuifeng Zhou

Xinyu Zang

Nishant Suneel Sarmukadam

Zhengqiang Huang

Yun-Chang Chang

Albert Xi Cheng

Yogesh Powar

A wireless network interface generates a beacon frame, and transmits the beacon frame outside of a wireless local area network (WLAN) served by an access point (AP). Additionally or alternatively, the wireless network interface receives a first probe request frame from a client station in the WLAN, and in response, generates and transmits a probe response frame outside of the WLAN. The wireless network interface receives one or more frames from the client station of the WLAN, the one or more frames having been transmitted outside of the WLAN. Network security information corresponding to the WLAN is extracted from the one or more frames, and the wireless network interface uses the network security information to wirelessly connect to the AP as part of the WLAN.

Systems and methods for provisioning devices for WLAN

The present disclosure describes methods and apparatuses for implementing virtual dynamic library loading in embedded systems. In some aspects, a determination is made that a feature is not available in firmware executed from a first memory. Based on information associated with the feature, a portion of a second memory is allocated for code of the feature. In some cases, the portion of the second memory is allocated from a data buffer or part of a shared memory. The code of the feature is loaded to the allocated portion of the second memory and address aliasing logic is configured enable execution of the feature from the second memory. By allocating and executing firmware features from the second memory, a size of the firmware executed from the first memory can be reduced to conserve memory space and other firmware features may be dynamically loaded and executed from the second memory.

Methods and apparatus for implementing virtual dynamic library loading in embedded systems

In accordance with the invention, a method, system and apparatus for saving power consumed by a station in an ad hoc wireless network are presented. The method comprises transmitting or receiving a signal by a station in the ad hoc wireless network during a beacon interval. The station enters a power saving doze state immediately following the transmission or reception of the signal and prior to the end of the beacon interval. Additionally or alternatively, the station may enter power saving doze state following a timed period, according to a counter, or according to a periodic pattern.

Enhanced IEEE power save in ad hoc wireless mode

A communication device using a current wireless network via a first access point confirms availability of a second access point before breaking the current connection. To confirm availability of the second access point, the communication device sends a power management message that causes the first access point to store packets during the power management period. After the connection to the second access point is confirmed, the second session may be put on hold using the same technique while the connection to the first access point is restored, the stored packets processed and the connection closed. Then the connection to the second access point may be reactivated and further communication made through the second access point.

Enhanced WLAN association for roaming

A network interface includes a firmware module that generates a first message based on a first print macro call and a memory module that stores the first message. The first message comprises a subset of data indicative of the first print macro call.

Small debug print

An interface system includes a secure digital (SD) driver module to communicate with an SD card over a bus, a secure digital input/output (SDIO) driver module to communicate with an SDIO card over the bus, and an input/output port. A method of operating a host in the interface system includes coupling the bus to the SD card while a first mode is enabled, coupling the bus to the SDIO card while a second mode is enabled, and enabling the first mode in response to a request for access to the SD card. The method includes, while the first mode is enabled, (i) listening for a notification signal arriving from the SDIO card via the input/output port, indicating that an interrupt is pending at the SDIO card, and (ii) in response to the notification signal, enabling the second mode to allow the SDIO card to transmit the interrupt to the host.

Secure digital input/output interface system

Methods and systems are described for providing Bluetooth and Wi-Fi coexistence on an electronic device. Aspects of exemplary embodiments include determining Bluetooth link parameters for a Bluetooth connection and Wi-Fi link parameters for a Wi-Fi connection. Also, a Bluetooth path loss for the Bluetooth connection and a Wi-Fi path loss for the Wi-Fi connection can be determined. According to this embodiment, one or more link conditions, based upon one or more of the Bluetooth link parameters, the Wi-Fi link parameters, the Bluetooth path loss, and the Wi-Fi path loss, may be calculated to determine if simultaneous collaboration between the Bluetooth connection and Wi-Fi connection is feasible. In response to simultaneous collaboration being feasible, the Bluetooth link parameters and the Wi-Fi link parameters are customized based on the one or more link conditions to permit simultaneous collaboration between the Bluetooth connection and the Wi-Fi connection.

Systems and methods for providing collaborative coexistence between Bluetooth and Wi-Fi

A host includes an operating system segmented into a user space and a kernel space with a driver. The user space stores a firmware file and the kernel space includes memory. The driver is stored in the kernel space and performs download cycles to download the firmware file to the memory. The device driver, during a first download cycle, transfers a first block of data to the memory. During each download cycle performed subsequent to the first download cycle, the driver is configured to: identify first and second segments of the memory, where data including the first block of data was stored in the first segment during a previous download cycle; copy the data including the first block of data from the first segment to the second segment; and transfer a block of data of the firmware file, not previously stored in the memory, to the second segment.

Firmware downloading through process file system

A host system includes an operating system having a user space and a kernel space with a memory. A device driver performs download cycles to download a firmware file from the user space to the memory. The download cycles are performed based on blocks of data remaining in the user space and not downloaded from the user space. The device driver: transfers a first block of data to a first segment of the memory; transfers a second block of data from the user space to a second segment of the memory; copies the first block into the second segment; and appends the first block to the second block to form a combined block. The first block is transferred from the user space to the first segment during a first download cycle. The first block is transferred from a second segment to the first segment during a second download cycle.

Method and apparatus for transferring firmware between an operating system and a device in a host

An interface system includes a first driver module that communicates through a bus with a first peripheral card when the bus is in a first mode. A second driver module communicates through the bus with a second peripheral card when the bus is in a second mode. A bus control module receives a communication notification signal from the second peripheral card when the first peripheral card is communicating with the first driver module. The communication notification signal does not interfere with the communication of the first peripheral card and the first driver module. The bus control module switches the bus between first and second modes in response to the communication notification signal.

A method and system for transferring a firmware file between a host system and a device driver, wherein the host system includes an operating system segmented into a user space and a kernel space is disclosed. Aspects of the exemplary embodiment include using a first type of process file system command in the user space to initiate a transfer of the firmware file between the host system and the device driver, wherein the firmware file exists in the user space and the device driver exists in the kernel space; and using a second type of process file system command in the user space to transfer the firmware file between the user space and the device driver in kernel space.

Growing community of inventors

San Jose, CA, United States of America

James Jan