CN106657703A - NV parameter import method, modem and mobile terminal - Google Patents

Abstract

The present invention discloses a kind of NV parameter importing method, modem and mobile terminal, method includes: modem determines whether NV parameters have been imported into the encrypted file system of mobile terminal; if NV parameters are not imported into the encrypted file system, NV image is obtained from EMMC, and NV image is burned to EMMC by burning tool in the production process of mobile terminal; NV image is parsed, and the NV parameters obtained by parsing are written into the encrypted file system to realize the import of NV parameters. Relative to the prior art, in the production process of mobile terminal, only the NV image related to NV parameters needs to be burned into EMMC using the burning tool, and the NV parameters are imported into the encrypted file system by the modem in the mobile terminal, and it is not necessary to turn on the mobile terminal and import it using a specific import tool during the production process, simplify the operation in the production process, effectively improve the production efficiency of the production line and reduce production costs.

Description

NV parameter import method, modem and mobile terminal

technical field

The invention relates to the technical field of mobile terminals, in particular to a method for importing NV parameters, a modem and a mobile terminal.

Background technique

In the existing mobile phone solutions, the nonvolatile (Nonvolatile, NV) parameters of the mobile phone are necessary parameters for the normal operation of the modem (Modem) of the mobile terminal, and are usually loaded when the Modem is started to determine some important behaviors during operation. For example, the power compensation of the video module, the ID number of the device, the selection of the antenna switch and the network standard selected by the mobile phone, etc.

At present, the NV parameters in the mobile phone are imported into the Encrypting File System (Encrypting File System, EFS) of the mobile phone during the production process of the mobile phone, so that the Modem can use the NV parameters in the EFS, so that the mobile phone can be used normally.

However, the above method of importing the NV parameters into the encrypted file system must be imported using a specific import tool during the production process of the mobile phone and when the mobile phone is turned on. The operation is complicated and reduces the production line production efficiency. The production cost of the mobile phone is high.

Contents of the invention

The main purpose of the present invention is to provide a method for importing NV parameters, a modem and a mobile terminal, aiming at solving the problem that in the prior art, the encrypted file system of NV parameters must be imported in the production process of the mobile phone, and a specific import tool must be used when the mobile phone is turned on. Importing is complicated to operate, which reduces the production efficiency of the production line, and because of the need to use specific importing tools, it will also bring about the problem of high production costs.

In order to achieve the above object, the first aspect of the present invention provides a method for importing NV parameters, including:

The modem determines whether the NV parameter has been imported into the encrypted file system of the mobile terminal;

If the NV parameter is not imported in the encrypted file system, then the modem obtains the NV mirror image from the embedded multimedia card EMMC of the mobile terminal, and the NV mirror image is passed through a burning tool during the production process of the mobile terminal burning to the EMMC;

The modem parses the NV image, and writes the NV parameters obtained through parsing into the encrypted file system, so as to realize the import of the NV parameters.

In order to achieve the above object, the second aspect of the present invention provides a modem, including:

A determination module is used to determine whether the NV parameter has been imported in the encrypted file system of the mobile terminal;

Obtaining module, for if not importing NV parameter in described encrypted file system, then obtain NV mirror image from the embedded multimedia card EMMC of described mobile terminal, described NV mirror image is by burning in the production process of described mobile terminal The recording tool is burned to the EMMC;

The image processing module is configured to analyze the NV image, and write the analyzed NV parameters into the encrypted file system, so as to realize the import of the NV parameters.

To achieve the above object, a third aspect of the present invention provides a mobile terminal, including the modem as described in the second aspect.

The present invention provides a method for importing NV parameters. The method includes: the modem determines whether the NV parameters have been imported into the encrypted file system of the mobile terminal; (Embedded Multi Media Card, EMMC) to obtain the NV image, the NV image is burned to the EMMC through the burning tool during the production process of the mobile terminal, and the NV image is analyzed, and the NV parameters obtained by the analysis are written into the encryption file system to implement the import of the NV parameter. Compared with the existing technology, in the production process of the mobile terminal, it is only necessary to use the burning tool to burn the NV image related to the NV parameters into the EMMC, and the import of the NV parameters into the encrypted file system is realized by the modem in the mobile terminal , it is not necessary to turn on the mobile terminal and use a specific import tool to import during the production process, which simplifies the operation during the production process, effectively improves the production efficiency of the production line and reduces the production cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative efforts.

Fig. 1 is a structural block diagram of a mobile terminal;

Fig. 2 is a schematic flow chart of the NV parameter import method in the first embodiment of the present invention;

Fig. 3 is a schematic flow chart of the NV parameter import method in the second embodiment of the present invention;

Fig. 4 is a schematic flow chart of the detailed steps of step 203 in the first embodiment shown in Fig. 2 of the present invention;

5 is a schematic diagram of functional modules of the modem in the third embodiment of the present invention;

FIG. 6 is a schematic diagram of functional modules of a modem in a fourth embodiment of the present invention.

detailed description

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

Fig. 1 shows a structural block diagram of a mobile terminal. The NV parameter import method provided by the embodiment of the present invention can be applied to the mobile terminal 10 shown in Figure 1. The mobile terminal 10 can include, but is not limited to: smart phones and notebooks that need to rely on batteries to maintain normal operation and support network and download functions. , tablets, wearable smart devices, etc.

As shown in Figure 1, the mobile terminal 10 includes a memory 101, a storage controller 102, one or more (only one is shown in the figure) processors 103, a peripheral interface 104, a radio frequency module 105, a button module 106, an audio module 107 , and touch screen 108, modem 110, EMMC111. These components communicate with each other via one or more communication buses/signal lines 109 .

It can be understood that the structure shown in FIG. 1 is only for illustration, and does not limit the structure of the mobile terminal. The mobile terminal 10 may also include more or fewer components than those shown in FIG. 1 , or have a different configuration than that shown in FIG. 1 . Each component shown in FIG. 1 may be implemented by hardware, software or a combination thereof.

Wherein, the processor 103 is specifically an application processor (Application Processor, AP), and the NV storage area 111 is provided with an encrypted file system, and the encrypted file system is used to store NV parameters.

Wherein, EMMC is used to store the operating system and system files for burning, and in the embodiment of the present invention, the NV image for burning is also stored.

The memory 101 can be used to store software programs and modules, such as the NV parameter import method in the embodiment of the present invention, the program instructions/modules corresponding to the modem and the mobile terminal, and the modem 110 executes the software programs and modules stored in the memory 101 by running Various functional applications and data processing, that is, to realize the above-mentioned NV parameter import method.

The memory 101 may include high-speed random access memory, and may also include non-volatile memory and shared memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memories. Wherein, an encrypted file system can be carried on the non-volatile memory, and the encrypted file system is used to store NV parameters.

In some examples, the memory 101 may further include a memory that is remotely located relative to the processor 103, and these remote memories may be connected to the mobile terminal 10 through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof. Access to the memory 101 by the processor 103 and possibly other components may be under the control of the memory controller 102 .

The peripheral interface 104 couples various input/output devices to the CPU and the memory 101 . The processor 103 runs various software and instructions in the memory 101 to execute various functions of the mobile terminal 10 and perform data processing.

In some embodiments, peripheral interface 104, processor 103, and memory controller 102 may be implemented in a single chip. In some other instances, they can be implemented by independent chips respectively.

The radio frequency module 105 is used to receive and send electromagnetic waves, realize mutual conversion between electromagnetic waves and electrical signals, and communicate with communication networks or other devices. The radio frequency module 105 may include various existing circuit elements for performing these functions, such as antenna, radio frequency transceiver, digital signal processor, encryption/decryption chip, Subscriber Identity Module (SIM) card, memory and so on. The radio frequency module 105 can communicate with various networks such as the Internet, an intranet, a preset type of wireless network, or communicate with other devices through a preset type of wireless network. The aforementioned preset type of wireless network may include a cellular telephone network, a wireless local area network or a metropolitan area network. The aforementioned preset type of wireless network can use various communication standards, protocols and technologies, including but not limited to Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE) , Wideband Code Division Multiple Access (W-CDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Bluetooth, Wi-Fi Technology (Wireless-Fidelity, WiFi) (such as IEEE802.11a, IEEE 802.11b, IEEE802.11g and/or IEEE 802.11n), Internet telephony (Voice over Internet Protocol, VoIP), global microwave interconnection In (Worldwide Interoperability for Microwave Access, Wi-Max), other protocols used for mail, instant messaging and short messages, and any other suitable communication protocols.

The button module 106 provides an interface for the user to input to the mobile terminal, and the user can press different buttons to make the mobile terminal 10 perform different functions.

The audio module 107 provides an audio interface to the user, which may include one or more microphones, one or more speakers, and audio circuitry. The audio circuit receives sound data from the peripheral interface 104, converts the sound data into electrical information, and transmits the electrical information to the speaker. Speakers convert electrical information into sound waves that can be heard by the human ear. The audio circuit also receives electrical information from the microphone, converts the electrical signal into sound data, and transmits the sound data to the peripheral interface 104 for further processing. Audio data can be obtained from the memory 101 or through the radio frequency module 105 . In addition, the audio data can also be stored in the memory 101 or sent through the radio frequency module 105 . In some examples, the audio module 107 may further include an earphone jack for providing an audio interface for earphones or other devices.

The touch screen 108 simultaneously provides an output and input interface between the mobile terminal and the user. Specifically, the touch screen 108 displays video output to the user, and the content of the video output may include text, graphics, video, and any combination thereof. Some output results correspond to some user interface objects. The touch screen 108 also receives user input, such as user gesture operations such as clicking and sliding, so that the user interface objects respond to these user inputs. The technique for detecting user input may be based on resistive, capacitive or any other possible touch detection techniques. Specific examples of the display unit of the touch screen 108 include, but are not limited to, liquid crystal displays or light emitting polymer displays.

The NV parameter importing method in the embodiment of the present invention is described based on the above mobile terminal.

In the prior art, the NV parameters must be imported into the encrypted file system during the production process of the mobile phone, and the specific import tool can only be imported when the mobile phone is turned on, the operation is complicated, and the production efficiency of the production line is reduced. , will also bring the problem of high production cost.

In order to solve the above problems, the present invention proposes a method for importing NV parameters. By using this method, in the production process of the mobile terminal, it is only necessary to use a burning tool to burn the NV image related to the NV parameters into the EMMC, and the The NV parameter import encrypted file system is implemented by the modem in the mobile terminal. It is not necessary to start the mobile terminal and use a specific import tool to import during the production process, which simplifies the operation during the production process and effectively improves the production efficiency of the production line. There is no need to use a specific import tool, which can effectively reduce production costs.

Please refer to Fig. 2, which is a schematic flow chart of the NV parameter import method in the first embodiment of the present invention, the method comprising:

Step 201, the modem determines whether the NV parameter has been imported into the encrypted file system of the mobile terminal;

Step 202, if the NV parameter is not imported in the encrypted file system, then the modem obtains the NV mirror image from the EMMC of the mobile terminal, and the NV mirror image is burned by a burning tool during the production process of the mobile terminal recorded in said EMMC;

Step 203, the modem parses the NV image, and writes the NV parameters obtained through the parsing into the encrypted file system, so as to implement the import of the NV parameters.

In the embodiment of the present invention, during the production process of the mobile terminal, the NV parameters that need to be imported into the mobile terminal are generated according to the specified file format to generate the NV image. It can be understood that, for mobile terminals of different types or merchants, the specified file format can be Differently, merchants can set the format used when generating NV images according to specific needs.

Among them, after the NV image is generated, the NV image can be burned into the EMMC through the burning tool on the production line. It is understandable that in the production process of the mobile terminal, burning data is a necessary process. , the operating system and system files used by the mobile terminal need to be burned. Therefore, in the process of burning the operating system and system files, burning the NV image will not increase the operation steps of burning, nor will it Need to use the import tool to NV parameters. The technical solutions in the embodiments of the present invention are based on this principle to achieve the purpose of improving the production efficiency of the production line and reducing the production cost.

In the embodiment of the present invention, when the mobile terminal is started, the modem in the mobile terminal will determine whether the NV parameter has been imported into the encrypted file system of the mobile terminal, wherein the encrypted file system is carried on a non-volatile memory, And used to save NV parameters.

Wherein, if the NV parameters are not imported in the encrypted file system, the modem will obtain the NV image from the EMMC that has burnt the NV image, and analyze the NV image, and write the NV parameters obtained by the analysis into the encrypted file system to Realize the import of NV parameters.

It can be understood that, in the embodiment of the present invention, the introduction of the NV parameters by the modem may be during the production process of the mobile terminal. , the modem can realize the import of NV parameters according to the technical solution in the embodiment of the present invention, or, after the mobile terminal leaves the factory, for example, after the user has purchased the mobile terminal, when the user uses the mobile terminal daily, the mobile terminal is turned on and When entering the working state, the modem can realize the import of NV parameters according to the technical solutions in the embodiments of the present invention. Therefore, the execution timing of the above technical solutions is not limited, and there is no need to deliberately activate the mobile terminal in order to realize the introduction of NV parameters

It can be understood that, in the embodiment of the present invention, when the NV image is burned to EMMC, the version number of the NV parameter can also be burned to EMMC by using the burning tool, and when the modem obtains the NV image from EMMC, The version number may also be obtained and stored in the encrypted file system, so that the mobile terminal can identify the version number to which the NV parameter stored in the encrypted file system belongs. Wherein, the version number obtained from EMMC is usually the default version number, and is the initial version number of the NV parameter in the mobile terminal. If the NV parameter is updated during the use of the mobile terminal, the version number also needs to be updated together.

In the embodiment of the present invention, the modem determines whether the NV parameter has been imported in the encrypted file system of the mobile terminal. If the NV parameter has not been imported in the encrypted file system, the NV image is obtained from the EMMC of the mobile terminal. The NV image is in During the production process of the mobile terminal, burn to the EMMC through a burning tool, and the modem will analyze the NV image, and write the analyzed NV parameters into the encrypted file system to realize the import of the NV parameters. Compared with the existing technology, in the production process of the mobile terminal, it is only necessary to use the burning tool to burn the NV image related to the NV parameters into the EMMC, and the import of the NV parameters into the encrypted file system is realized by the modem in the mobile terminal , it is not necessary to turn on the mobile terminal and use a specific import tool to import during the production process, which simplifies the operation during the production process, effectively improves the production efficiency of the production line and reduces the production cost.

Based on the above-mentioned first embodiment, please refer to FIG. 3 , which is a schematic flow chart of the NV parameter import method in the second embodiment of the present invention. The method includes:

Step 301, the modem reads the specified NV mark from the encrypted file system;

Step 302, if the specified NV mark is not read, then determine that the NV parameter is not imported into the encrypted file system;

In the embodiment of the present invention, after the mobile terminal is started, the modem will determine whether the NV parameter has been imported into the encrypted file system. Specifically, the modem will read the specified NV mark from the encrypted file system, and the specified NV mark is used to identify If the NV parameter has been imported into the encrypted file system, if the specified NV mark is empty, it means that the NV parameter has not been imported into the encrypted file system; if the specified NV mark is not empty, it means that the NV parameter has been imported into the encrypted file system . Wherein, when the designated NV mark is empty, the modem cannot read it, and when the designated NV mark is not empty, it can read it. Wherein, if the modem does not read the specified NV mark, it can be determined that the NV parameter is not imported into the encrypted file system.

It can be understood that if the modem reads the specified NV mark, it can be determined that the NV parameters have been imported into the encrypted file system, the mobile terminal can be used normally, and the modem can use the NV parameters stored in the encrypted file system.

Step 303, if the NV parameter is not imported in the encrypted file system, the modem sends a file acquisition request to the application processor in the mobile terminal, so that the application processor reads the NV image in the EMMC, Writing the NV image into the shared memory of the mobile terminal, and feeding back the file to the modem to obtain a response;

Step 304, after receiving the file acquisition response, read the NV image from the shared memory;

In the embodiment of the present invention, when the NV parameter is not imported in the encrypted file system, the modem will obtain the NV image from the EMMC, specifically: the modem will send a file acquisition request to the application processor in the mobile terminal, and the file acquisition request It can be marked that the file to be acquired is an NV image. After receiving the file acquisition request, the application processor will read the NV image in the EMMC and write the read NV image into the shared memory of the mobile terminal. In order to achieve the purpose of loading the NV image into the shared memory. And the application processor will also feed back the file acquisition response to the modem, so as to notify the modem that the NV image has been loaded into the shared memory. Wherein, after the modem receives the above-mentioned file acquisition response, it will read the NV image from the shared memory. Therefore, the modem can obtain the NV image in the EMMC through interaction with the application processor.

Step 305, the modem parses the NV image, and writes the NV parameters obtained by parsing into the encrypted file system, so as to realize the import of the NV parameters;

Step 306, the modem generates a specified NV mark, and saves the specified NV mark to the encrypted file system, and the specified NV mark is used to identify that the NV parameter has been imported into the encrypted file system.

In the embodiment of the present invention, after obtaining the NV image, the modem parses the NV image to obtain the NV parameters, and writes the NV parameters into the encrypted file system to realize the import of the NV parameters. And after the import, in order to mark that the NV parameters have been imported, the modem will also generate a specified NV mark, and save the NV mark to the encrypted file system, so that when the mobile terminal is subsequently started, the modem can determine the encrypted file system based on the NV mark NV parameters have been imported in .

In the embodiment of the present invention, the modem will read the specified NV mark from the encrypted file system, and if the specified NV mark is not read, it is determined that the NV parameter is not imported in the encrypted file system, and the modem will send the specified NV mark to the application processor. File acquisition request, so that the application server reads the NV image in EMMC, and writes the NV image into the shared memory, so that the modem can read the NV image from the shared memory, and parse the NV image, and parse the obtained NV parameters are written into the encrypted file system to realize the import of NV parameters. Compared with the existing technology, it is only necessary to burn the NV image into the EMMC during the production process, and the modem in the mobile terminal completes the import of the NV parameters. The operation is simple and does not require the use of specific import tools, which effectively improves the production line efficiency and reduce production costs. Further, after the NV parameters are imported, by generating the NV mark, it is possible to effectively identify that the encrypted file system has imported the NV parameters, so as to avoid resource waste caused by repeated NV parameter imports.

Based on the first embodiment shown in FIG. 2, please refer to FIG. 4, which is a schematic flow chart of the refinement steps of step 203 in the first embodiment, and the refinement steps include:

Step 401, using the file format contained in the NV image to find the mapping relationship between the preset file format and the analysis rules, and determine the analysis rules of the NV image;

Step 402: Analyze the NV image by using the analysis rules, and write the NV parameters obtained through analysis into the encrypted file system.

It can be understood that FIG. 4 is also a schematic flow chart of detailed steps of step 305 in the second embodiment shown in FIG. 3 .

In the embodiment of the present invention, the NV image is generated according to the specified file format during the production process, and is burned into the EMMC by using a burning tool. Considering that different merchants or models of mobile terminals are burnt into the NV image to be used when generating In order to effectively analyze the NV image, the mapping relationship between the file format and the analysis rules can be preset in the mobile terminal. For example, if the NV image is generated according to the A coding method, the parsing rule corresponding to the A coding method is the A decoding method.

In the embodiment of the present invention, after the modem obtains the NV image, it will use the file format contained in the NV image to search for the mapping relationship between the preset file format and the parsing rules, determine the parsing rules of the NV image, and use the NV image's The parsing rule parses the NV image, and writes the parsed NV parameters into the encrypted file system.

In the embodiment of the present invention, the NV parameters can be obtained by analyzing the NV image, so as to complete the import of the NV parameters.

Please refer to FIG. 5 , which is a schematic diagram of the functional modules of the modem in the third embodiment of the present invention. The modem includes: a determination module 501 , an acquisition module 502 and an image processing module 503 .

A determining module 501, configured to determine whether the NV parameter has been imported into the encrypted file system of the mobile terminal;

Obtaining module 502, is used for if not importing NV parameter in described encrypted file system, then obtain NV mirror image from the embedded multimedia card EMMC of described mobile terminal, described NV mirror image is through in the production process of described mobile terminal The burning tool is burned to the EMMC;

The image processing module 503 is configured to analyze the NV image, and write the analyzed NV parameters into the encrypted file system, so as to realize the import of the NV parameters.

In the embodiment of the present invention, during the production process of the mobile terminal, the NV parameters that need to be imported into the mobile terminal are generated according to the specified file format to generate the NV image. It can be understood that, for mobile terminals of different types or merchants, the specified file format can be Differently, merchants can set the format used when generating NV images according to specific needs.

Among them, after the NV image is generated, the NV image can be burned into the EMMC through the burning tool on the production line. It is understandable that in the production process of the mobile terminal, burning data is a necessary process. , the operating system and system files used by the mobile terminal need to be burned. Therefore, in the process of burning the operating system and system files, burning the NV image will not increase the operation steps of burning, nor will it Need to use the import tool to NV parameters. The technical solutions in the embodiments of the present invention are based on this principle to achieve the purpose of improving the production efficiency of the production line and reducing the production cost.

In the embodiment of the present invention, when the mobile terminal is started, the determination module 501 in the modem in the mobile terminal will determine whether the NV parameter has been imported into the encrypted file system of the mobile terminal, wherein the encrypted file system is carried in the non-volatile On the volatile memory, and used to save the NV parameters.

Wherein, if the NV parameter is not imported in the encrypted file system, the acquisition module 502 will obtain the NV image from the EMMC of the burned NV image, and the NV image will be analyzed by the image processing module 503, and the NV parameter obtained by the analysis will be written Enter the encrypted file system to realize the import of NV parameters.

It can be understood that, in the embodiment of the present invention, the introduction of the NV parameters by the modem may be during the production process of the mobile terminal. , the modem can realize the import of NV parameters according to the technical solution in the embodiment of the present invention, or, after the mobile terminal leaves the factory, for example, after the user has purchased the mobile terminal, when the user uses the mobile terminal daily, the mobile terminal is turned on and When entering the working state, the modem can realize the import of NV parameters according to the technical solutions in the embodiments of the present invention. Therefore, the execution timing of the above technical solutions is not limited, and there is no need to deliberately activate the mobile terminal in order to realize the introduction of NV parameters

It can be understood that, in the embodiment of the present invention, when the NV image is burned to EMMC, the version number of the NV parameter can also be burned to EMMC by using the burning tool, and when the modem obtains the NV image from EMMC, The version number may also be obtained and stored in the encrypted file system, so that the mobile terminal can identify the version number to which the NV parameter stored in the encrypted file system belongs. Wherein, the version number obtained from EMMC is usually the default version number, and is the initial version number of the NV parameter in the mobile terminal. If the NV parameter is updated during the use of the mobile terminal, the version number also needs to be updated together.

In the embodiment of the present invention, the modem determines whether the NV parameter has been imported in the encrypted file system of the mobile terminal. If the NV parameter has not been imported in the encrypted file system, the NV image is obtained from the EMMC of the mobile terminal. The NV image is in During the production process of the mobile terminal, burn to the EMMC through a burning tool, and the modem will analyze the NV image, and write the analyzed NV parameters into the encrypted file system to realize the import of the NV parameters. Compared with the existing technology, in the production process of the mobile terminal, it is only necessary to use the burning tool to burn the NV image related to the NV parameters into the EMMC, and the import of the NV parameters into the encrypted file system is realized by the modem in the mobile terminal , it is not necessary to turn on the mobile terminal and use a specific import tool to import during the production process, which simplifies the operation during the production process, effectively improves the production efficiency of the production line and reduces the production cost.

Please refer to FIG. 6, which is a schematic diagram of the functional modules of the modem in the fourth embodiment of the present invention, including the determination module 501, the acquisition module 502 and the image processing module 503 in the third embodiment shown in FIG. The content described in the third embodiment is similar to that described in the third embodiment, and details are not repeated here.

In the embodiment of the present invention, the determining module 501 includes:

A tag reading module 601, configured to read a specified NV tag from the encrypted file system;

The non-imported determining module 602 is configured to determine that the NV parameter has not been imported into the encrypted file system if the specified NV mark is not read;

In the embodiment of the present invention, after the mobile terminal is started, the determining module 501 will determine whether the NV parameter has been imported into the encrypted file system. Specifically, the tag reading module 601 will read the specified NV tag from the encrypted file system. The NV mark is used to identify the imported NV parameters in the encrypted file system. If the specified NV mark is empty, it indicates that the NV parameter has not been imported in the encrypted file system. If the specified NV mark is not empty, it indicates that the encrypted file The NV parameters have been imported into the system. Wherein, when the designated NV mark is empty, the modem cannot read it, and when the designated NV mark is not empty, it can read it. Wherein, if the modem has not read the specified NV mark, the non-import determining module 602 may determine that the NV parameter has not been imported into the encrypted file system.

It can be understood that if the modem reads the specified NV mark, it can be determined that the NV parameters have been imported into the encrypted file system, the mobile terminal can be used normally, and the modem can use the NV parameters stored in the encrypted file system.

In the embodiment of the present invention, the obtaining module 502 includes:

Sending module 603, for if the NV parameter is not imported in the encrypted file system, then send a file acquisition request to the application processor in the mobile terminal, so that the application processor reads the NV image in the EMMC , writing the NV image into the shared memory of the mobile terminal, and feeding back the file to the modem to obtain a response;

The image reading module 604 is configured to read the NV image from the shared memory after receiving the file acquisition response.

In the embodiment of the present invention, the image processing module 503 includes:

Rule determining module 605, for utilizing the file format that described NV mirror image contains to search the mapping relationship between preset file format and parsing rule, determine the parsing rule of described NV mirror image;

The parsing and writing module 606 is configured to parse the NV image by using the parsing rules, and write the NV parameters obtained through parsing into the encrypted file system.

In the embodiment of the present invention, the modem also includes:

The generating and saving module 607 is configured to generate a specified NV mark, and save the specified NV mark to the encrypted file system, and the specified NV mark is used to identify that the NV parameter has been imported into the encrypted file system.

In the embodiment of the present invention, when the NV parameter is not imported in the encrypted file system, the acquisition module 502 will acquire the NV image from the EMMC, specifically: the sending module 603 will send a file acquisition request to the application processor in the mobile terminal, The file that needs to be obtained can be marked in the file acquisition request as an NV image, wherein the application processor will read the NV image in the EMMC after receiving the file acquisition request, and write the read NV image to the mobile terminal. In the shared memory, in order to achieve the purpose of loading the NV image into the shared memory. And the application processor will also feed back the file acquisition response to the modem, so as to notify the modem that the NV image has been loaded into the shared memory. Wherein, after the modem receives the above-mentioned file acquisition response, the image reading module 604 will read the NV image from the shared memory. Therefore, the modem can obtain the NV image in the EMMC through interaction with the application processor.

In the embodiment of the present invention, the NV image is generated according to the specified file format during the production process, and is burned into the EMMC by using a burning tool. Considering that different merchants or models of mobile terminals are burnt into the NV image to be used when generating In order to effectively analyze the NV image, the mapping relationship between the file format and the analysis rules can be preset in the mobile terminal. For example, if the NV image is generated according to the A coding method, the parsing rule corresponding to the A coding method is the A decoding method.

In the embodiment of the present invention, after the modem obtains the NV image, the image processing module 503 will analyze the NV image to obtain the NV parameters, and write the NV parameters into the encrypted file system to realize the import of the NV parameters. Specifically: after the rule determination module 605 obtains the NV image, it will use the file format contained in the NV image to search for the mapping relationship between the preset file format and the analysis rules, determine the analysis rules of the NV image, and write it into the module 606 by analysis The NV image is analyzed by using the analysis rules of the NV image, and the NV parameters obtained by the analysis are written into the encrypted file system.

After importing the NV parameters, in order to mark that the NV parameters have been imported, the generating and saving module 607 will also generate a specified NV mark, and save the NV mark to the encrypted file system, so that when the mobile terminal is subsequently started, the modem can be based on the NV mark Make sure that the NV parameter has been imported into the encrypted file system.

In the embodiment of the present invention, the modem will read the specified NV mark from the encrypted file system, and if the specified NV mark is not read, it is determined that the NV parameter is not imported in the encrypted file system, and the modem will send the NV parameter to the application processor. File acquisition request, so that the application server reads the NV image in EMMC, and writes the NV image into the shared memory, so that the modem can read the NV image from the shared memory, and parse the NV image, and parse the obtained NV parameters are written into the encrypted file system to realize the import of NV parameters. Compared with the existing technology, it is only necessary to burn the NV image into the EMMC during the production process, and the modem in the mobile terminal completes the import of the NV parameters. The operation is simple and does not require the use of specific import tools, which effectively improves the production line efficiency and reduce production costs. Further, after the NV parameters are imported, by generating the NV mark, it is possible to effectively identify that the encrypted file system has imported the NV parameters, and avoid waste of resources caused by repeated NV parameter imports.

In an embodiment of the present invention, a mobile terminal is also provided, and the mobile terminal includes the modem in the third embodiment or the fourth embodiment.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be in electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or may be distributed to multiple network modules. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, each module may exist separately physically, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.

If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

It should be noted that, for the sake of simplicity of description, the aforementioned method embodiments are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

The above is a description of a NV parameter import method, modem and mobile terminal provided by the present invention. For those skilled in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation and application range In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. a non-volatile NV parameter import method, is characterized in that, described method comprises: The modem determines whether the NV parameter has been imported into the encrypted file system of the mobile terminal; If the NV parameter is not imported in the encrypted file system, then the modem obtains the NV mirror image from the embedded multimedia card EMMC of the mobile terminal, and the NV mirror image is passed through a burning tool during the production process of the mobile terminal burning to the EMMC; The modem parses the NV image, and writes the NV parameters obtained through parsing into the encrypted file system, so as to realize the import of the NV parameters. 2. method according to claim 1, is characterized in that, described modem obtains the step of NV image from EMMC comprising: The modem sends a file acquisition request to the application processor in the mobile terminal, so that the application processor reads the NV image in the EMMC, and writes the NV image into the shared memory of the mobile terminal , and feed back the file to the modem to obtain a response; After receiving the file acquisition response, read the NV image from the shared memory. 3. The method according to claim 1, further comprising: The modem generates a specified NV mark, and saves the specified NV mark to the encrypted file system, and the specified NV mark is used to identify that the NV parameter has been imported into the encrypted file system. 4. The method according to any one of claims 1 to 3, wherein the modem determines whether the step of importing NV parameters in the encrypted file system of the mobile terminal comprises: The modem reads the designated NV mark from the encrypted file system; If the specified NV mark is not read, it is determined that the NV parameter is not imported into the encrypted file system. 5. The method according to any one of claims 1 to 3, wherein the modem parses the NV image, and the step of writing the NV parameters obtained by parsing into the encrypted file system comprises: Utilize the file format contained in the NV mirror image to search for the mapping relationship between the preset file format and the parsing rules, and determine the parsing rules of the NV mirror image; The NV image is analyzed by using the analysis rules, and the NV parameters obtained by the analysis are written into the encrypted file system. 6. A modem, characterized in that the modem comprises: A determination module is used to determine whether the NV parameter has been imported in the encrypted file system of the mobile terminal; Obtaining module, for if not importing NV parameter in described encrypted file system, then obtain NV mirror image from the embedded multimedia card EMMC of described mobile terminal, described NV mirror image is by burning in the production process of described mobile terminal The recording tool is burned to the EMMC; The image processing module is configured to analyze the NV image, and write the analyzed NV parameters into the encrypted file system, so as to realize the import of the NV parameters. 7. The modem according to claim 6, wherein the obtaining module comprises: The sending module is used to send a file acquisition request to the application processor in the mobile terminal if the NV parameter is not imported in the encrypted file system, so that the application processor reads the NV image in the EMMC, Writing the NV image into the shared memory of the mobile terminal, and feeding back the file to the modem to obtain a response; The image reading module is configured to read the NV image from the shared memory after receiving the file acquisition response. 8. The modem according to claim 6, wherein the modem further comprises: The generating and saving module is configured to generate a specified NV mark, and save the specified NV mark to the encrypted file system, and the specified NV mark is used to identify that the NV parameter has been imported into the encrypted file system. 9. The modem according to any one of claims 6 to 9, wherein the determining module comprises: A tag reading module, configured to read a specified NV tag from the encrypted file system; The determination module is not imported, and is used to determine that the NV parameter is not imported in the encrypted file system if the specified NV mark is not read; And/or, the image processing module includes: The rule determination module is used to utilize the file format contained in the NV mirror image to search for the mapping relationship between the preset file format and the parsing rules, and determine the parsing rules of the NV mirror image; The parsing and writing module is configured to parse the NV image by using the parsing rules, and write the NV parameters obtained through parsing into the encrypted file system. 10. A mobile terminal, characterized in that the mobile terminal comprises the modem according to any one of claims 6-9.