System and method of supporting a pointing device
View Patent ↗In one or more embodiments, an information handling system may be communicatively coupled to a pointing device that communicates interaction data via a first bus via a first data format and may include a controller that receives the interaction data via the first bus and transforms the interaction data into a second data format and communicates the interaction data to a second bus via the second data format. If a status of a resource associated with the pointing device is queried, the controller may be instructed to cease transforming the interaction data from the pointing device, permitting another device to receive the interaction data and provide the interaction data to a processor of the information handling system. As the other device receives the interaction data and provides the interaction data to the processor, additional and/or full functionality of the pointing device may be realized and/or accomplished.
1. An information handling system, comprising:
a processor;
a memory communicatively coupled to the processor and that stores instructions executable by the processor;
a first bus communicatively coupled to the processor;
a second bus, different from the first bus, communicatively coupled to the processor;
an embedded controller communicatively coupled to the first bus and communicatively coupled to the second bus; and
wherein the embedded controller is configured to:
receive, via the first bus, interaction data associated with a pointing device that is communicatively coupled to the information handling system;
transform the interaction data from a first data format into a second data format, different from the first data format; and
provide the interaction data to the second bus via the second data format;
wherein the instructions, when executed by the processor, cause the information handling system to:
query at least one resource associated with the pointing device; and
in response to querying the at least one resource associated with the pointing device, provide embedded controller configuration information to the embedded controller; and
wherein the embedded controller is further configured to:
cease to provide the interaction data to the second bus based on the embedded controller configuration information.
2. The information handling system of claim 1 , wherein the second data format is a PS/2 format.
3. The information handling system of claim 1 , wherein the embedded controller is further configured to:
receive a signal that indicates that the interaction data is available via the first bus; and
query the pointing device for the interaction data.
4. The information handling system of claim 1 , further comprising:
a platform controller hub (PCH) communicatively coupled to the processor;
wherein the instructions further cause the information handling system to:
in response to querying the at least one resource associated with the pointing device, provide PCH configuration information to the PCH; and
wherein the PCH is configured to receive, via the first bus, additional interaction data associated with the pointing device and provides the additional interaction data to the processor.
5. The information handling system of claim 4 ,
wherein the embedded controller is further configured to:
cease operating as a bus master of the first bus based on the embedded controller configuration information; and
wherein the PCH is further configured to:
operate as the bus master of the first bus based on the PCH configuration information.
6. The information handling system of claim 1 , wherein the first bus includes an inter-integrated circuit (I 2 C) bus.
7. The information handling system of claim 6 , wherein the at least one resource associated with the pointing device includes the I 2 C bus.
8. The information handling system of claim 1 , wherein the second bus includes at least one of a low pin count (LPC) bus and an enhanced serial peripheral interconnect (eSPI) bus.
9. The information handling system of claim 1 , wherein the embedded controller is further configured to:
receive, via the first bus, additional interaction data associated with the pointing device;
determine that the additional interaction data cannot be transformed into the second data format; and
drop the additional interaction data.
10. The information handling system of claim 1 , wherein the pointing device includes at least one of a mouse, a trackball, a touchpad, and a touchscreen.
11. A method of operating an information handling system, comprising:
an embedded controller of the information handling system receiving, via a first bus of the information handling system, interaction data associated with a pointing device communicatively coupled to the information handling system;
the embedded controller transforming the interaction data from a first data format into a second data format, different from the first data format;
the embedded controller providing the interaction data to a second bus, different from the first bus, of the information handling system via the second data format;
querying at least one resource associated with the pointing device;
in response to the querying the at least one resource associated with the pointing device, providing embedded controller configuration information to the embedded controller; and
the embedded controller, based on the embedded controller configuration information, ceasing to provided the interaction data to the second bus.
12. The method of claim 11 , wherein the second data format is a PS/2 format.
13. The method of claim 11 , further comprising:
the embedded controller receiving a signal that indicates that the interaction data is available via the first bus; and
the embedded controller querying the pointing device for the interaction data.
14. The method of claim 11 , further comprising:
in response to the querying the at least one resource associated with the pointing device, providing platform controller hub (PCH) configuration information to a PCH of the information handling system;
the PCH receiving, via the first bus, additional interaction data associated with the pointing device; and
the PCH providing the additional interaction data to a processor of the information handling system.
15. The method of claim 14 , further comprising:
the embedded controller, based on the embedded controller configuration information, ceasing to operate as a bus master of the first bus; and
the PCH, based on the PCH configuration information, operating as the bus master of the first bus.
16. The method of claim 11 , wherein the first bus includes an inter-integrated circuit (I 2 C) bus.
17. The method of claim 16 , wherein the at least one resource associated with the pointing device includes the I 2 C bus.
18. The method of claim 11 , wherein the second bus includes at least one of a low pin count (LPC) bus and an enhanced serial peripheral interconnect (eSPI) bus.
19. The method of claim 11 , further comprising:
the embedded controller receiving, via the first bus, additional interaction data associated with the pointing device;
the embedded controller determining that the additional interaction data cannot be transformed into the second data format; and
the embedded controller dropping the additional interaction data.
20. The method of claim 11 , wherein the pointing device includes at least one of a mouse, a trackball, a touchpad, and a touchscreen.