WO2016045363A1

WO2016045363A1 - Method for cpu to control wifi module via hsic bus interface

Info

Publication number: WO2016045363A1
Application number: PCT/CN2015/076581
Authority: WO
Inventors: 郭涛
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-09-24
Filing date: 2015-04-14
Publication date: 2016-03-31
Also published as: CN105446912A

Abstract

Disclosed is a method for a CPU to control a WIFI module to sleep via an HSIC bus interface, comprising: a CPU establishes a connection with a WIFI module via an HSIC bus interface; when the CPU receives a sleep instruction, the WIFI module unloads a WIFI module drive file and a WIFI module firmware file; and the CPU controls a power module to stop supplying power to the HSIC bus interface and the WIFI module, such that the WIFI module enters a sleeping state. Also disclosed are a method for the CPU to control the WIFI module to wake up via an HSIC bus interface, device for the CPU to control the WIFI module to sleep via the HSIC bus interface and device for the CPU to control the WIFI module to wake up via the HSIC bus interface.

Description

Method for controlling WIFI module by CPU through HSIC bus interface

Technical field

The present invention relates to the field of high speed Inter-Chip (HSIC) technology, and more particularly to a method for a central processing unit (CPU) to control a WIFI module through an HSIC bus interface.

Background technique

The HSIC bus uses Inter-Chip Connectivity (ICC) technology to enable USB 2.0 protocol transmission over short distances. The HSIC bus uses two signal lines (strobe and data) to communicate at a rate of 480 megabits per second. Therefore, using the HSIC bus to connect to the WIFI module in the portable wireless mobile hotspot device can improve the transmission rate of the WIFI signal.

A portable wireless mobile hotspot device is like a mobile phone. In addition to requiring a fast internet connection and better battery life, it is desirable to reduce the current as much as possible while the portable wireless mobile hotspot device is dormant, and the standby mechanism of the WIFI module is An important issue that must be considered as a portable wireless mobile hotspot device.

When the portable wireless mobile hotspot device needs to sleep, the WIFI module needs to enter the sleep state first; correspondingly, the HSIC bus interface needs to be disconnected from the WIFI module, and then the portable wireless mobile hotspot device goes into sleep. However, the HSIC bus interface does not support the hot plug function, that is to say, the HSIC bus interface cannot realize the disconnection and secondary connection of the WIFI module under the condition of uninterrupted power; the HSIC bus interface can realize WIFI in case of power failure. The sleep of the module, but because the HSIC bus interface does not support hot swap, and the WIFI module has a drive file at this time; therefore, the WIFI module will not be able to wake up normally when it is powered on again. That is, the HSIC bus interface cannot implement the sleep operation and wake-up operation of the WIFI module.

Summary of the invention

In view of this, the embodiment of the present invention is expected to provide a method for the CPU to control the WIFI module through the HSIC bus interface, and at least solve the technical problem that the HSIC bus interface cannot implement the sleep operation and the wake-up operation of the WIFI module.

The technical solution of the embodiment of the present invention is implemented as follows:

An embodiment of the present invention provides a method for controlling a sleep of a WIFI module by a CPU through an HSIC bus interface, where the method includes:

The CPU establishes a connection with the WIFI module through the HSIC bus interface;

When the CPU receives the sleep instruction, the WIFI module uninstalls the WIFI module driver file and the WIFI module firmware file; the CPU controls the power module to stop supplying power to the HSIC bus interface and the WIFI module, so that the WIFI module Go to sleep.

In the above solution, the CPU establishes a connection with the WIFI module through the HSIC bus interface, including:

After the WIFI module is powered on, when detecting that the HSIC bus interface is in an IDLE working mode, the WIFI module sends a connection request to the CPU;

When the CPU receives the connection request sent by the WIFI module, the CPU sends connection confirmation information to the WIFI module; the CPU downloads the WIFI module driver file and the WIFI module firmware file from the file storage module and sends the connection The WIFI module;

The WIFI module receives the connection confirmation information sent by the CPU; the WIFI module receives and enables the WIFI module driver file and the WIFI module firmware file sent by the CPU.

In the above solution, the sending, by the WIFI module, the connection request to the CPU includes:

The WIFI module modifies the strobe signal in the HSIC bus interface from a high level to a low level; and changes a data signal in the HSIC bus interface from a low level to a high level to achieve the The CPU sends a connection request.

In the above solution, when the CPU receives the sleep instruction, the WIFI module uninstalling the WIFI module driver file and the WIFI module firmware file includes:

When the CPU receives the sleep instruction, the CPU sends a sleep request to the WIFI module;

The WIFI module receives the hibernation request sent by the CPU, uninstalls the WIFI module driver file and the WIFI module firmware file according to the hibernation request, and sends hibernation confirmation information to the CPU.

In the above solution, the CPU controls the power module to stop supplying power to the HSIC bus interface and the WIFI module, including:

When the CPU receives the sleep confirmation information sent by the WIFI module, the CPU sends a power supply stop command to the power module;

After receiving the power supply stop command, the power module stops supplying power to the HSIC bus interface and the WIFI module.

The embodiment of the invention further provides a method for controlling a wakeup of a WIFI module by a CPU through an HSIC bus interface, the method comprising:

When the CPU receives the wake-up instruction, the CPU establishes a connection with the WIFI module through the HSIC bus interface.

In the above solution, when the CPU receives the wake-up instruction, the CPU establishes a connection with the WIFI module through the HSIC bus interface, including:

When the CPU receives the wake-up instruction, the CPU controls the power module to supply power to the HSIC bus interface and the WIFI module;

Receiving, by the CPU, a connection request sent by the WIFI module, and sending connection confirmation information to the WIFI module; the CPU downloading the WIFI module driver file and the WIFI module firmware file from the file storage module, and sending the WIFI module to the WIFI Module

In the above solution, when the CPU receives the wake-up instruction, the CPU controls the power supply module to supply power to the HSIC bus interface and the WIFI module, including:

When the CPU receives the wake-up instruction, the CPU sends a power supply command to the power module;

After receiving the power supply command, the power module supplies power to the HSIC bus interface and the WIFI module.

The embodiment of the invention further provides a device for controlling a sleep of a WIFI module by a CPU through an HSIC bus interface, the device comprising:

The CPU is configured to establish a connection with the WIFI module, download the WIFI module driver file and the WIFI module firmware file from the file storage module and send the WIFI module to the WIFI module; receive the sleep instruction, and enable the WIFI module to uninstall the WIFI module driver file and the WIFI module firmware file; The control power module stops supplying power to the HSIC bus interface and the WIFI module, so that the WIFI module enters a sleep state from a working state;

An HSIC bus interface, configured to establish a data connection for the CPU and the WIFI module;

The WIFI module is configured to receive and enable the WIFI module driver file and the WIFI module firmware file sent by the CPU; and uninstall the WIFI module driver file and the WIFI module firmware file according to the sleep instruction of the CPU, and enter a sleep state from the working state.

The embodiment of the invention further provides a device for controlling a wakeup of a WIFI module by using a HSIC bus interface, the device comprising:

The CPU is configured to receive the wake-up command, and the control power module supplies power to the HSIC bus interface and the WIFI module, and establishes a connection with the WIFI module; downloads the WIFI module driver file and the WIFI module firmware file from the file storage module and sends the WIFI module to the WIFI module, so that the CPU The WIFI module enters the awake state from the sleep state;

The WIFI module is configured to receive and enable the WIFI module driver file and the WIFI module firmware file sent by the CPU, and enter the awake state from the sleep state.

The CPU provided by the embodiment of the present invention controls the WIFI module through the HSIC bus interface, and the CPU and the WIFI module establish a connection through the HSIC bus interface; when the CPU receives the sleep instruction, the WIFI module uninstalls the WIFI module driver file and the WIFI module firmware file. The CPU control power module stops supplying power to the HSIC bus interface and the WIFI module, so that the WIFI module enters a sleep state. At this time, the HSIC bus interface and the WIFI module are in a state before the CPU and the WIFI module establish a connection; when the CPU receives the wake-up command, The CPU re-establishes the connection with the WIFI module through the HSIC bus interface. That is, each time a wake-up command is received, the CPU must re-establish a connection with the WIFI module through the HSIC bus interface, so that the normal sleep operation and wake-up operation of the WIFI module through the HSIC bus interface can be realized.

DRAWINGS

1 is a schematic flow chart of a method for controlling a sleep of a WIFI module by a CPU of the first embodiment through a HSIC bus interface;

2 is a schematic flow chart of step S101 of the method of Embodiment 1;

3 is a schematic flow chart of step S102 of the method of Embodiment 1;

4 is a schematic flow chart of step S201 of the method of Embodiment 2;

5 is a schematic structural diagram of an apparatus for controlling a sleep of a WIFI module by a CPU of Embodiment 3 through an HSIC bus interface;

6 is a schematic structural diagram of an apparatus for controlling a wakeup of a WIFI module by a CPU of Embodiment 4 through an HSIC bus interface;

7 is a schematic flow chart of a method for controlling a WIFI module by a CPU of Embodiment 5 through an HSIC bus interface;

Figure 8 is a schematic diagram of a protocol of the HSIC bus;

FIG. 9 is a schematic diagram of the sleep and wake-up process of the WIFI module.

detailed description

The technical solutions of the present invention are further elaborated below in conjunction with the drawings and specific embodiments.

Example 1

In order to solve the technical problem that the HSIC bus interface cannot perform the sleep operation of the WIFI module, the embodiment provides a method for the CPU to control the sleep of the WIFI module through the HSIC bus interface. As shown in FIG. 1 , the method includes:

S101: the CPU establishes a connection with the WIFI module through the HSIC bus interface;

The transmission rate of the HSIC bus interface is very high, and the CPU is connected to the WIFI module through the HSIC bus interface, which can increase the transmission rate of the WIFI signal. The state before the connection is established is:

(1) The HSIC bus is powered on, the strobe signal in the HSIC bus interface is high; the data signal in the HSIC bus interface is low;

(2) The WIFI module is powered up, but there is no WIFI module driver file and WIFI module firmware file, which cannot work.

S102: When the CPU receives the sleep instruction, the WIFI module uninstalls the WIFI module driver file and the WIFI module firmware file; the CPU control power module stops supplying power to the HSIC bus interface and the WIFI module, so that the The WIFI module enters a sleep state;

After receiving the sleep instruction, the CPU sends a sleep request to the WIFI module. The WIFI module uninstalls the WIFI module driver file and the WIFI module firmware file according to the sleep request, so that the WIFI module is in a state where the WIFI module driver file and the WIFI module firmware file are not powered. It avoids the next time the WIFI module fails to work normally after power-on, and saves power.

The CPU provided by the embodiment controls the sleep mode of the WIFI module through the HSIC bus interface, and establishes a connection between the CPU and the WIFI module through the HSIC bus interface; when the CPU receives the sleep instruction, the WIFI module uninstalls the WIFI module driver file and the WIFI module. Firmware file; the CPU control power module stops supplying power to the HSIC bus interface and the WIFI module, so that the WIFI module enters a sleep state. At this time, the HSIC bus interface and the WIFI module are in a state before the CPU and the WIFI module establish a connection, and the HSIC bus interface is realized. Sleep operation on the WIFI module.

Specifically, the schematic diagram of the process of step S101 is as shown in FIG. 2, and includes:

S1011: After the WIFI module is powered on, when detecting that the HSIC bus interface is in an IDLE working mode, the WIFI module sends a connection request to the CPU;

Wherein, detecting that the HSIC bus interface is an IDLE working mode specifically includes:

The HSIC bus interface is in IDLE mode. At this time, the strobe signal in the HSIC bus interface is high; the data signal in the HSIC bus interface is low. The WIFI module detects that the strobe signal in the HSIC bus interface is high; the data signal in the HSIC bus interface is low to know that the HSIC bus interface is in the IDLE mode of operation.

The sending, by the WIFI module, the connection request to the CPU specifically includes:

S1012: When the CPU receives the connection request sent by the WIFI module, the CPU sends connection confirmation information to the WIFI module; the CPU downloads the WIFI module driver file and the WIFI module firmware file from the file storage module. Send to the WIFI module;

The sending, by the CPU, the connection confirmation information to the WIFI module is specifically:

The level of the strobe signal and the data signal in the IDLE state of the HSIC bus interface is modified by the above WIFI module sending connection request. The state of the HSIC bus interface at this time is not the IDLE state, but is in the connected state (or other Working status). At this time, the CPU can perform normal data signal interaction through the HSIC bus interface, instead of modifying the level of the strobe signal and the data signal of the HSIC bus interface for signal interaction. Therefore, the connection confirmation message is sent by the CPU to the WIFI module via the HSIC bus interface.

S1013: The WIFI module receives the connection confirmation information sent by the CPU; the WIFI module receives and enables the WIFI module driver file and the WIFI module firmware file sent by the CPU, and enables the WIFI module driver file and the WIFI sent by the CPU. The module firmware file implements the normal operation of the WIFI module.

The schematic diagram of the process of step S102 is as shown in FIG. 3, and includes:

S1021: When the CPU receives the sleep instruction, the CPU sends a sleep request to the WIFI module; the sleep instruction may be sent by the user, or may be sent periodically.

The way the user sends is as follows: If the user does not use the computer for a while or does not operate the computer within the set time, the computer can be put into a sleep state by selecting the sleep option or the computer automatically sleeping. Electrical energy. The user operation is specifically: right click on the main interface of the computer, select the property option, select the screen saver from the property interface, click the power button in the lower right corner of the screen saver interface, select the sleep tab in the power option interface, and enable the sleep In the box before the check box, the sleep button appears in the start button of the computer.

Timing transmission mode: The sleep time is set by the CPU, and the sleep command is sent periodically by the CPU after setting.

S1022: The WIFI module receives the hibernation request sent by the CPU, uninstalls the WIFI module driver file and the WIFI module firmware file according to the hibernation request, and sends hibernation confirmation information to the CPU.

S1023: When the CPU receives the sleep confirmation information sent by the WIFI module, the CPU sends a power supply stop command to the power module.

S1024: After receiving the power-off command, the power module stops supplying power to the HSIC bus interface and the WIFI module.

Example 2

In order to solve the technical problem that the HSIC bus interface cannot implement the wake-up operation of the WIFI module, the embodiment provides a method for the CPU to wake up the WIFI module through the HSIC bus interface, and the method includes:

S201: When the CPU receives the wake-up instruction, the CPU establishes a connection with the WIFI module through the HSIC bus interface.

It can be seen from Embodiment 1 that when the WIFI module is in the sleep state, the WIFI module does not install the WIFI module driver file and the WIFI module firmware file, which is equivalent to not starting the WIFI module. When the CPU receives the wake-up instruction, the WIFI module will re-accept and enable the WIFI module driver file and the WIFI module firmware file from the CPU, so that the WIFI module works normally. When the WIFI module is used to wake up the WIFI module, the WIFI module is powered off before the WIFI module driver file and the WIFI module firmware file are unloaded. When the WIFI module is powered on again, the CPU will not recognize the WIFI module or the WIFI module cannot work normally. technical problem.

The CPU provided by the embodiment controls the wakeup of the WIFI module through the HSIC bus interface. When the CPU receives the wakeup command, the CPU establishes a connection with the WIFI module through the HSIC bus interface. That is, each time a wake-up command is received, the CPU must re-establish a connection with the WIFI module through the HSIC bus interface, and realize the wake-up operation of the WIFI module through the HSIC bus interface.

Specifically, the schematic flowchart of step S201 is as shown in FIG. 4, and includes:

S2011: When the CPU receives the wake-up instruction, the CPU controls the power module to supply power to the HSIC bus interface and the WIFI module, and specifically includes: when the CPU receives the wake-up instruction, the CPU sends the power module to the power module. Sending a power supply command; after receiving the power supply command, the power module supplies power to the HSIC bus interface and the WIFI module;

S2012: After the WIFI module is powered on, when detecting that the HSIC bus interface is in an IDLE working mode, the WIFI module sends a connection request to the CPU;

The sending, by the WIFI module, the connection request to the CPU specifically includes: the WIFI module modifying a strobe signal in the HSIC bus interface from a high level to a low level; The data signal is modified from a low level to a high level to enable a connection request to be sent to the CPU.

S2013: The CPU receives a connection request sent by the WIFI module, and sends connection confirmation information to the WIFI module. The CPU downloads the WIFI module driver file and the WIFI module firmware file from the file storage module and sends the connection to the server. Said WIFI module;

S2014: The WIFI module receives the connection confirmation information sent by the CPU; the WIFI module receives and enables the WIFI module driver file and the WIFI module firmware file sent by the CPU.

Example 3

This embodiment and the embodiment 1 belong to the same inventive concept. The embodiment provides a device for the CPU to control the sleep of the WIFI module through the HSIC bus interface. As shown in FIG. 5, the device includes:

The CPU 301 is configured to establish a connection with the WIFI module 303, download the WIFI module driver file and the WIFI module firmware file from the file storage module, and send the WIFI module firmware file to the WIFI module 303; receive the sleep instruction, and enable the WIFI module 303 to uninstall the WIFI module driver file and the WIFI module. The firmware file is used to stop the power supply for the HSIC bus interface 302 and the WIFI module 303, so that the WIFI module 303 enters the sleep state from the working state;

The HSIC bus interface 302 is configured to establish a data connection between the CPU 301 and the WIFI module 303;

The WIFI module 303 is configured to receive and enable the WIFI module driver file and the WIFI module firmware file sent by the CPU 301; uninstall the WIFI module driver file and the WIFI module firmware file according to the sleep instruction of the CPU 301, and enter a sleep state from the working state.

Example 4

This embodiment and Embodiment 2 belong to the same inventive concept. The embodiment provides a device for controlling a WIFI module to wake up through a HSIC bus interface. As shown in FIG. 6, the device includes:

The CPU 401 is configured to receive a wake-up command, and the control power module supplies power to the HSIC bus interface and the WIFI module, and establishes a connection with the WIFI module; downloads the WIFI module driver file and the WIFI module firmware file from the file storage module, and sends the WIFI module to the WIFI module, so that The WIFI module enters the awake state from the sleep state;

The HSIC bus interface 402 is configured to establish a data connection between the CPU and the WIFI module;

The WIFI module 403 is configured to receive and enable the WIFI module driver file and the WIFI module firmware file sent by the CPU, and enter the awake state from the sleep state.

Example 5

In order to solve the technical problem that the HSIC bus interface cannot perform the sleep and wake-up operation of the WIFI module, the embodiment provides a method for the CPU to control the WIFI module through the HSIC bus interface. As shown in FIG. 7, the method in this embodiment includes:

S501: the CPU establishes a connection with the WIFI module through the HSIC bus interface;

The transmission rate of the HSIC bus interface is very high, and the CPU is connected to the WIFI module through the HSIC bus interface, which can increase the transmission rate of the WIFI signal.

S502: When the CPU receives the sleep instruction, the WIFI module uninstalls the WIFI module driver file and the WIFI module firmware file to prevent the WIFI module from working normally after the next WIFI module is powered on; the CPU controls the power module to stop to the HSIC. The bus interface and the WIFI module are powered, so that the WIFI module enters a sleep state. At this time, the WIFI module is in a state where the WIFI module driver file and the WIFI module firmware file are not powered, and the power supply of the next WIFI module is ensured. While saving energy;

S503: When the CPU receives the wake-up instruction, the CPU re-establishes a connection with the WIFI module through the HSIC bus interface.

It can be seen from step S502 that the WIFI module does not have the WIFI module driver file and the WIFI module firmware file installed, which is equivalent to the state in which the WIFI module is not started. When the CPU receives the wake-up instruction, the WIFI module will re-accept and enable the WIFI module driver file and the WIFI module firmware file from the CPU, thereby avoiding that the WIFI module or the WIFI module cannot be recognized when the WIFI module is used to wake up the WIFI module. Technical problem.

The CPU provides a method for controlling the WIFI module through the HSIC bus interface, and the CPU and the WIFI module are connected through the HSIC bus interface; when the CPU receives the sleep command, the WIFI module unloads the WIFI module driver file and the WIFI module firmware. The CPU controls the power module to stop supplying power to the HSIC bus interface and the WIFI module, so that the WIFI module enters a sleep state. At this time, the HSIC bus interface and the WIFI module are in a state before the CPU and the WIFI module establish a connection; when the CPU receives the wake-up command The CPU re-establishes the connection with the WIFI module through the HSIC bus interface. That is, each time a wake-up command is received, the CPU must re-establish a connection with the WIFI module through the HSIC bus interface, so that the normal sleep operation and wake-up operation of the WIFI module through the HSIC bus interface can be realized.

Specifically, the establishing, by the CPU, the connection with the WIFI module through the HSIC bus interface in step S501 includes:

S5011: After the WIFI module is powered on, when detecting that the HSIC bus interface is in an IDLE working mode, the WIFI module sends a connection request to the CPU; the HSIC bus interface is an IDLE working mode description. The WIFI module does not establish a connection with the CPU, so the connection request is sent in the IDIC working mode on the HSIC bus interface;

S5012: when the CPU receives the connection request sent by the WIFI module, the CPU sends connection confirmation information to the WIFI module; the CPU downloads the WIFI module driver file and the WIFI module firmware from the file storage module. The file is sent to the WIFI module;

The file storage module and the CPU are connected, and are set to store files commonly used by the system such as the WIFI module driver file and the WIFI module firmware file.

S5013: The WIFI module receives the connection confirmation information sent by the CPU; the WIFI module receives and enables the WIFI module driver file and the WIFI module firmware file sent by the CPU, and enables the WIFI module driver file and the WIFI sent by the CPU. The module firmware file implements the normal operation of the WIFI module.

In step S502, when the CPU receives the sleep instruction, the WIFI module uninstalls the WIFI module driver file and the WIFI module firmware file, and the CPU control power module stops supplying power to the HSIC bus interface and the WIFI module, so that The WIFI module enters a sleep state, including:

S5021: When the CPU receives the sleep instruction, the CPU sends a sleep request to the WIFI module; the sleep instruction may be sent by the user, or may be sent periodically.

S5022: The WIFI module receives the hibernation request sent by the CPU, uninstalls the WIFI module driver file and the WIFI module firmware file according to the hibernation request, and sends hibernation confirmation information to the CPU. Because the HSIC bus interface and the WIFI module are connected in this embodiment, it is necessary to stop the power supply of the HSIC bus interface to realize the sleep of the WIFI module; since the HSIC bus interface does not support hot plugging, the HSIC bus is connected. If the port is powered again after stopping the power supply, it will not be able to wake up the WIFI module that has enabled the WIFI module driver file and the WIFI module firmware file. Therefore, at this time, the WIFI module driver file and the WIFI module firmware file are unloaded, and the next time the WIFI module is powered on, the HSIC bus interface is properly connected with the WIFI module.

S5023: When the CPU receives the sleep confirmation information sent by the WIFI module, the CPU sends a power supply stop command to the power module.

S5024: After receiving the power-off command, the power module stops supplying power to the HSIC bus interface and the WIFI module.

Since the WIFI module has uninstalled the WIFI module driver file and the WIFI module firmware file at this time, stopping the power supply for the WIFI module at this time does not affect the normal wakeup of the WIFI module, and saves power.

In step S503, when the CPU receives the wake-up instruction, the CPU re-establishes the connection with the WIFI module through the HSIC bus interface, including:

S5031: When the CPU receives the wake-up instruction, the CPU controls the power module to supply power to the HSIC bus interface and the WIFI module, and specifically includes:

S50311: when the CPU receives the wake-up instruction, the CPU sends a power supply instruction to the power module;

S50312: After receiving the power supply command, the power module supplies power to the HSIC bus interface and the WIFI module.

S5032: After the WIFI module is powered on, when detecting that the HSIC bus interface is in an IDLE working mode, the WIFI module sends a connection request to the CPU;

S5033: The CPU receives a connection request sent by the WIFI module, and sends connection confirmation information to the WIFI module. The CPU downloads the WIFI module driver file and the WIFI module firmware file from the file storage module and sends the connection to the server. Said WIFI module;

S5034: The WIFI module receives the connection confirmation information sent by the CPU; the WIFI module receives and enables the WIFI module driver file and the WIFI module firmware file sent by the CPU.

At this point, the normal sleep and wake-up of the WIFI module is realized when the WIC module is connected by using the HSIC bus interface.

Example 6

The present invention will be described in detail below through a specific scenario.

First, because the HSIC bus interface is used to connect to the WIFI module, the working process of the WIFI module must fully follow the HSIC bus interface protocol, as shown in Figure 8. When the device of the embodiment in which the CPU is connected to the WIFI module through the HSIC bus interface is started, the HSIC bus interface is in the IDLE working mode (ie, the strobe signal strobe of the HSIC bus interface is high, and the data signal data is low). At this time, the WIFI module is powered on. When the WIFI module detects that the HSIC bus interface is in the IDLE working mode, it will issue a connection request, that is, the strobe is set to a low level, and the data is set to a high level. If the CPU detects that the HSIC bus interface is set to low level and data is set high, the connection request is sent successfully. At this time, the WIFI module and the HSIC bus interface establish a connection. Then, the CPU downloads the WIFI module driver file and the WIFI module firmware file through the file storage module, and sends the WIFI module firmware file to the WIFI module. The WIFI module enables the WIFI module driver file and the WIFI module firmware file to make the WIFI module work normally. This is the startup and working process of the WIFI module.

Secondly, if it is necessary to enter the sleep state, then all modules mounted on all the buses of the device must enter a sleep state, and the WIFI module is no exception. However, since the HSIC bus interface itself does not have the function of hot plugging, that is, if the WIFI module is from the sleep state (disconnected from the HSIC bus interface) to wake up again (communicate with the HSIC bus interface again), the CPU cannot detect the WIFI module at this time. . Therefore, in this embodiment, when the device enters the sleep state, the WIFI module driver file and the WIFI module firmware file are uninstalled, the power supply of the WIFI module and the HSIC bus interface is disconnected, and the state of the HSIC bus interface and the WIFI module is returned again during sleep. The state before the first power-on. When the device needs to wake up from the sleep state, the normal operation of the WIFI module is implemented according to the process of powering up and working the first WIFI module, as shown in FIG. 9.

S901: The HSIC bus interface is energized and is in the IDLE working state; at the same time, the WIFI module is also powered on, and when the WIFI module finds that the HSIC bus interface is in the IDLE working state, the level of the strobe signal and the data signal of the HSIC bus interface is modified, so that The HSIC bus interface is in working state; at this time, the CPU detects that the HSIC bus interface is in working state, and detects that the other end of the HSIC bus interface is a WIFI module, the CPU downloads the WIFI module driver file corresponding to the WIFI module and the WIFI from the file system. The module firmware file is sent to the WIFI module;

S902: The WIFI module receives and enables the WIFI module driver file and the WIFI module firmware file sent by the CPU, so that the WIFI module works normally; and realizes data interaction between the CPU and the WIFI module through the HSIC bus interface;

S903: When the CPU receives the sleep instruction, send a sleep request to the WIFI module, if the WIFI module is transmitting the file at this time, and can not stop the data transmission, proceed to step S904; otherwise, proceed to step S905;

S904: The WIFI module continues to work normally;

S905: The WIFI module uninstalls the WIFI module driver file and the WIFI module firmware file according to the sleep instruction, and informs the CPU of the state of the WIFI module at this time; the CPU notifies the power module to stop supplying power to the HSIC bus interface and the WIFI module, and the WIFI module is in a state before power-on. That is, the WIFI module driver file and the WIFI module firmware file are not enabled.

S906: When the CPU receives the sleep instruction, if the WIFI module does not need to wake up, then proceeds to step S907; otherwise, returns to step S901;

S907: The WIFI module remains in a sleep state.

This solves the following technical problems: First, there is no problem that the WIFI module and the HSIC bus interface cannot be established or the WIFI module cannot work normally; second, the WIFI module is completely powered off during sleep, and no current is generated. This enables the device to have a smaller current during sleep and helps to improve the battery's endurance.

The steps of the method of the present invention are as follows:

(1) According to the protocol of the HSIC bus interface and the power-on sequence corresponding to the WIFI module, the HSIC bus interface and the entire power-on process of the WIFI module are implemented, and a connection can be established between the two to achieve a connection state;

(2) Load the WIFI module driver file corresponding to the WIFI module and the WIFI module firmware file, the purpose is to configure the parameters of the WIFI module, so that the WIFI module can work normally, and realize the data communication between the WIFI module and the HSIC bus interface;

(3) When the device needs to sleep, the WIFI module driver file corresponding to the WIFI module and the WIFI module firmware file are unloaded, and finally all the power supplies related to the WIFI module and the HSIC bus interface are disconnected, and the whole machine can enter the sleep state;

(4) When the whole machine is from sleep to wake-up, the state of the WIFI module and the HSIC bus interface is the same as before the first power-on, and then the working process of the first power-on is simulated on the software to realize wake-up of the WIFI module. After that, it can work normally and realize data communication with the HSIC bus interface.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.

The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the above integration The unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing storage medium includes: a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. A medium that can store program code.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Industrial applicability

As described above, the method for controlling the WIFI module by the CPU of the embodiment of the present invention has the following beneficial effects: each time a wake-up command is received, the CPU must re-establish a connection with the WIFI module through the HSIC bus interface, so that The normal sleep operation and wake-up operation of the WIFI module through the HSIC bus interface can be realized.

Claims

A method for controlling a sleep of a WIFI module by a CPU through an HSIC bus interface, the method comprising:

The CPU establishes a connection with the WIFI module through the HSIC bus interface;

When the CPU receives the sleep instruction, the WIFI module uninstalls the WIFI module driver file and the WIFI module firmware file; the CPU controls the power module to stop supplying power to the HSIC bus interface and the WIFI module, so that the WIFI module Go to sleep.
The method of claim 1, wherein the establishing, by the CPU, the connection to the WIFI module via the HSIC bus interface comprises:

After the WIFI module is powered on, when detecting that the HSIC bus interface is in an IDLE working mode, the WIFI module sends a connection request to the CPU;

When the CPU receives the connection request sent by the WIFI module, the CPU sends connection confirmation information to the WIFI module; the CPU downloads the WIFI module driver file and the WIFI module firmware file from the file storage module and sends the connection The WIFI module;

The WIFI module receives the connection confirmation information sent by the CPU; the WIFI module receives and enables the WIFI module driver file and the WIFI module firmware file sent by the CPU.
The method of claim 2, wherein the sending, by the WIFI module, the connection request to the CPU comprises:

The WIFI module modifies the strobe signal in the HSIC bus interface from a high level to a low level; and changes a data signal in the HSIC bus interface from a low level to a high level to achieve the The CPU sends a connection request.
The method according to claim 1, wherein when the CPU receives the sleep instruction, the WIFI module uninstalling the WIFI module driver file and the WIFI module firmware file includes:

When the CPU receives the sleep instruction, the CPU sends a sleep request to the WIFI module;

The WIFI module receives the hibernation request sent by the CPU, uninstalls the WIFI module driver file and the WIFI module firmware file according to the hibernation request, and sends hibernation confirmation information to the CPU.
The method of claim 4, wherein the CPU controlling the power module to stop supplying power to the HSIC bus interface and the WIFI module comprises:

When the CPU receives the sleep confirmation information sent by the WIFI module, the CPU sends a power supply stop command to the power module;

After receiving the power supply stop command, the power module stops supplying power to the HSIC bus interface and the WIFI module.
A method for controlling a wakeup of a WIFI module by a CPU through an HSIC bus interface, the method comprising:

When the CPU receives the wake-up instruction, the CPU establishes a connection with the WIFI module through the HSIC bus interface.
The method according to claim 6, wherein when the CPU receives the wake-up instruction, the CPU establishes a connection with the WIFI module through the HSIC bus interface, including:

When the CPU receives the wake-up instruction, the CPU controls the power module to supply power to the HSIC bus interface and the WIFI module;

After the WIFI module is powered on, when detecting that the HSIC bus interface is in an IDLE working mode, the WIFI module sends a connection request to the CPU;

Receiving, by the CPU, a connection request sent by the WIFI module, and sending connection confirmation information to the WIFI module; the CPU downloading the WIFI module driver file and the WIFI module firmware file from the file storage module, and sending the WIFI module to the WIFI Module

The WIFI module receives the connection confirmation information sent by the CPU; the WIFI module receives and enables the WIFI module driver file and the WIFI module firmware file sent by the CPU.
The method of claim 7, wherein the CPU controlling the power module to supply power to the HSIC bus interface and the WIFI module when the CPU receives the wake-up instruction comprises:

When the CPU receives the wake-up instruction, the CPU sends a power supply command to the power module;

After receiving the power supply command, the power module supplies power to the HSIC bus interface and the WIFI module.
The method of claim 7, wherein the sending, by the WIFI module, the connection request to the CPU comprises:

The WIFI module modifies the strobe signal in the HSIC bus interface from a high level to a low level; and changes a data signal in the HSIC bus interface from a low level to a high level to achieve the The CPU sends a connection request.
A device for controlling a sleep of a WIFI module by a CPU through an HSIC bus interface, the device comprising:

The CPU is configured to establish a connection with the WIFI module, download the WIFI module driver file and the WIFI module firmware file from the file storage module and send the WIFI module to the WIFI module; receive the sleep instruction, and enable the WIFI module to uninstall the WIFI module driver file and the WIFI module firmware file; The control power module stops supplying power to the HSIC bus interface and the WIFI module, so that the WIFI module enters a sleep state from a working state;

An HSIC bus interface, configured to establish a data connection for the CPU and the WIFI module;

The WIFI module is configured to receive and enable the WIFI module driver file and the WIFI module firmware file sent by the CPU; and uninstall the WIFI module driver file and the WIFI module firmware file according to the sleep instruction of the CPU, and enter a sleep state from the working state.
A device for controlling a wakeup of a WIFI module by a CPU through an HSIC bus interface, the device comprising:

The CPU is configured to receive the wake-up command, and the control power module supplies power to the HSIC bus interface and the WIFI module, and establishes a connection with the WIFI module; downloads the WIFI module driver file and the WIFI module firmware file from the file storage module and sends the WIFI module to the WIFI module, so that the CPU The WIFI module enters the awake state from the sleep state;

An HSIC bus interface, configured to establish a data connection for the CPU and the WIFI module;

The WIFI module is configured to receive and enable the WIFI module driver file and the WIFI module firmware file sent by the CPU, and enter the awake state from the sleep state.