System and method for bridging file systems between two different processors in mobile phone
First Claim
1. A method for bridging a first file system and a second file system in a mobile communication device, the mobile communication device comprising an application processor and a baseband processor, the application processor comprising an interface unit, the first file system, and a bridging file system (BFS) client module, the baseband processor comprising the second file system and a BFS host module, the method comprising the steps of:
- (a) in response to a request of the first file system, transmitting a BFS command from the BFS client module to the BFS host module via the interface unit;
(b) at the BFS host module, requesting the second file system to perform a file processing procedure according to the BFS command; and
(c) via the interface unit, transmitting a BFS result from the BFS host module to the BFS client module.
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Accused Products
Abstract
A mobile phone can include an application processor and a baseband processor. The application processor has a first file system and the baseband processor has a second file system. The baseband processor is connected to a host interface unit of the application processor via a memory bus. The baseband processor can set registers and FIFO queues of the host interface unit and thereby control the application processor to achieve the goal of exchanging information. The invention provides a bridging file system for bridging the file systems in the two processors. Thus, the first file system of the application processor can access files in the second file system of the baseband processor.
14 Citations
25 Claims
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1. A method for bridging a first file system and a second file system in a mobile communication device, the mobile communication device comprising an application processor and a baseband processor, the application processor comprising an interface unit, the first file system, and a bridging file system (BFS) client module, the baseband processor comprising the second file system and a BFS host module, the method comprising the steps of:
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(a) in response to a request of the first file system, transmitting a BFS command from the BFS client module to the BFS host module via the interface unit; (b) at the BFS host module, requesting the second file system to perform a file processing procedure according to the BFS command; and (c) via the interface unit, transmitting a BFS result from the BFS host module to the BFS client module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mobile communication device, comprising:
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an application processor, comprising; an interface unit; a first file system; and a bridging file system (BFS) client module, when the first file system transmits a request to the BFS client module, the BFS client module transmitting a BFS command via the interface unit; and a baseband processor, comprising; a second file system; and a BFS host module, after receiving the BFS command from the interface unit, the BFS host module requesting the second file system to perform a file processing procedure according to the BFS command, and transmitting a BFS result from the BFS host module to the BFS client module via the interface unit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification