Methods and apparatus to offload media streams in host devices

Patent metadata

Field	Value
Publication number	US-10366017-B2
Application number	US-201815941273-A
Country	US
Kind code	B2
Filing date	Mar 30, 2018
Priority date	Mar 30, 2018
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

An example apparatus includes: a host controller offload capability detector to determine that a media stream offload capability is available in the peripheral interface host controller; a media stream offload arbiter to send a media stream offload request to a media processor manager based on the media stream offload capability and based on a peripheral device being connected to the peripheral interface host controller; and an endpoint mapper to generate an endpoint table entry corresponding to the peripheral device, the endpoint table entry to assign a first communication interface of the peripheral interface host controller to transfer a media stream corresponding to the peripheral device between the media processor and the peripheral interface host controller without the media stream being routed to an application processor that is in circuit with the peripheral interface host controller and in circuit with the media processor.

First claim

What is claimed is:

1. An apparatus to route a media stream between a media processor and a peripheral interface host controller, the apparatus comprising:
a host controller offload capability detector to determine that a media stream offload capability is available in the peripheral interface host controller;
a media stream offload arbiter to send a media stream offload request to a media processor manager based on the media stream offload capability and based on a peripheral device being connected to the peripheral interface host controller; and
an endpoint mapper to generate an endpoint table entry corresponding to the peripheral device, the endpoint table entry to assign a first communication interface of the peripheral interface host controller to transfer the media stream corresponding to the peripheral device between the media processor and the peripheral interface host controller.

2. The apparatus as defined in claim 1 , wherein the transfer of the media stream between the media processor and the peripheral interface host controller is without the media stream being routed to an application processor that is in circuit with the peripheral interface host controller and in circuit with the media processor.

3. The apparatus as defined in claim 1 , further including a host controller manager driver-to-driver interface to communicate control information with the media processor manager via a peripheral media offload driver-to-driver interface, the peripheral media offload driver-to-driver interface to form a control path separate from a data path, the data path to transfer the media stream between the media processor and the peripheral interface host controller.

4. The apparatus as defined in claim 1 , wherein the endpoint mapper is further to program the endpoint table entry to map at least one of an input pin, an output pin, or a bi-directional pin of the first communication interface with a buffer of the peripheral interface host controller.

5. The apparatus as defined in claim 1 , wherein the media stream offload capability is indicative of a capability of the peripheral interface host controller to transfer media streams between the peripheral interface host controller and the media processor while bypassing an application processor that is in circuit with the peripheral interface host controller and in circuit with the media processor.

6. The apparatus as defined in claim 1 , further including a peripheral device detector to detect that the peripheral device is connected to the peripheral interface host controller, the media stream offload arbiter to send the media stream offload request in response to detecting that the peripheral device is connected to the peripheral interface host controller.

7. The apparatus as defined in claim 1 , wherein the peripheral interface host controller is a universal serial bus (USB) host controller.

8. An apparatus to route a media stream between a media processor and a peripheral interface host controller, the apparatus comprising:
means for detecting a media stream offload capability of the peripheral interface host controller;
means for sending a media stream offload request to a media processor manager based on the media stream offload capability and based on a peripheral device being connected to the peripheral interface host controller; and
means for generating an endpoint table entry corresponding to the peripheral device, the endpoint table entry to assign a first communication interface of the peripheral interface host controller to transfer the media stream corresponding to the peripheral device between the media processor and the peripheral interface host controller.

9. The apparatus as defined in claim 8 , wherein the transfer of the media stream between the media processor and the peripheral interface host controller is without the media stream being routed to an application processor that is in circuit with the peripheral interface host controller and in circuit with the media processor.

10. The apparatus as defined in claim 8 , further including means for communicating control information with the media processor manager via a peripheral media offload driver-to-driver interface, the peripheral media offload driver-to-driver interface to form a control path separate from a data path, the data path to transfer the media stream between the media processor and the peripheral interface host controller.

11. The apparatus as defined in claim 8 , wherein the means for generating the endpoint table entry is to program the endpoint table entry to map at least one of an input pin, an output pin, or a bi-directional pin of the first communication interface with a buffer of the peripheral interface host controller.

12. The apparatus as defined in claim 8 , wherein the media stream offload capability is indicative of a capability of the peripheral interface host controller to transfer media streams between the peripheral interface host controller and the media processor while bypassing an application processor that is in circuit with the peripheral interface host controller and in circuit with the media processor.

13. The apparatus as defined in claim 8 , further including means for detecting that the peripheral device is connected to the peripheral interface host controller, the means for sending the media stream offload request to send the media offload request in response to the detecting that the peripheral device is connected to the peripheral interface host controller.

14. The apparatus as defined in claim 8 , wherein the peripheral interface host controller is a universal serial bus (USB) host controller.

15. A non-transitory computer readable storage medium comprising instructions that, when executed, cause at least one processor to at least:
detect a media stream offload capability of a peripheral interface host controller;
send a media stream offload request to a media processor manager based on the media stream offload capability and based on a peripheral device being connected to the peripheral interface host controller; and
generate an endpoint table entry corresponding to the peripheral device, the endpoint table entry to assign a first communication interface of the peripheral interface host controller to transfer a media stream corresponding to the peripheral device between a media processor and the peripheral interface host controller.

16. The non-transitory computer readable storage medium as defined in claim 15 , wherein the transfer of the media stream between the media processor and the peripheral interface host controller is without the media stream being routed to an application processor that is in circuit with the peripheral interface host controller and in circuit with the media processor.

17. The non-transitory computer readable storage medium as defined in claim 15 , wherein the instructions are further to cause the at least one processor to communicate control information with the media processor manager via a peripheral media offload driver-to-driver interface, the peripheral media offload driver-to-driver interface to form a control path separate from a data path, the data path to transfer the media stream between the media processor and the peripheral interface host controller.

18. The non-transitory computer readable storage medium as defined in claim 15 , wherein the instructions are further to cause the at least one processor to program the endpoint table entry to map at least one of an input pin, an output pin, or a bi-directional pin of the first communication interface with a buffer of

Assignees

• Intel Corp

Inventors

• Abramson Darren
• Hines David
• Martinez Alberto
• Aslam Adeel
• Howard John
• Kutuva Shanthanand R
• Vadivelu Karthi R
• Wong Kar Leong
• Chellappan Satheesh

Classifications

• G06F12/0653

  with centralised address assignment · CPC title

• G06F2212/1028

  Power efficiency · CPC title

• G06F2209/509

  Offload · CPC title

• G06F9/5044

  considering hardware capabilities · CPC title

• G06F9/5055

  considering software capabilities, i.e. software resources associated or available to the machine · CPC title