CN115118534B - Low-power-consumption state control method, device, terminal and storage medium of MBB equipment - Google Patents
Low-power-consumption state control method, device, terminal and storage medium of MBB equipment Download PDFInfo
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Abstract
The application discloses a low-power consumption state control method, a device, a terminal and a storage medium of MBB equipment, wherein the method comprises the following steps: when the MBB equipment is in a low-power-consumption state, the main control chip receives a wake-up request signal through the USB interface and sends the wake-up request signal to the signal detection circuit, the signal detection circuit generates a level signal based on the wake-up request signal and sends the level signal to the power management chip, the power management chip generates the wake-up signal based on the level signal, after the main control chip senses the wake-up signal, a request for exiting the low-power-consumption state is sent to the power management chip, and after the power management chip responds to the request for exiting the low-power-consumption state, the MBB equipment is controlled to exit the low-power-consumption state. The application shortens the time for waking up the MBB equipment, improves the control efficiency of the low power consumption state of the MBB equipment, ensures that the waking up time of the MBB equipment meets the protocol specification of USB resume, and avoids the occurrence of USB port drop or re-enumeration of the MBB equipment in the process of exiting the low power consumption state.
Description
Technical Field
The application relates to the technical field of low-power consumption control, in particular to a low-power consumption state control method, a device, a terminal and a storage medium of MBB equipment.
Background
The low power state is to place the processor and memory into the lowest power state so as to meet the operational requirements of the current workload without affecting performance. With the development of MBB (mobile broadband), MBB devices are widely used, and how to control the low power consumption state of MBB devices is an important problem to be solved.
Currently, the MBB device mainly realizes control of a low-power consumption state through an internal Power Management Unit (PMU), that is, a subsystem of the MBB device records a clock, a voltage and a current of a slave device (such as a USB device) to which the MBB device belongs, and initiates switching from VCC of the slave device to a minimum mode, that is, a low-power consumption mode (low-power consumption state), to the PMU, and exits from the low-power consumption mode by applying the recorded VCC of the slave device back to the PMU.
However, the low power consumption state control of the MBB device is performed by adopting the method, the processing time from entering the low power consumption state to exiting the low power consumption state of the MBB device is not considered, and USB port falling or re-enumeration is easily caused in the process of exiting the low power consumption state of the MBB device.
Disclosure of Invention
The application mainly aims to provide a low-power-consumption state control method, a device, a terminal and a storage medium of MBB equipment, so as to solve the problem of USB port dropping or re-enumeration existing in the related technology.
In order to achieve the above object, in a first aspect, the present application provides a low power consumption state control method of an MBB device, including:
the MBB equipment comprises a main control chip, a signal detection circuit and a power management chip, wherein a USB interface is arranged on the main control chip;
when the MBB equipment is in a low-power consumption state, the main control chip receives a wake-up request signal through the USB interface and sends the wake-up request signal to the signal detection circuit;
the signal detection circuit generates a level signal based on the wake-up request signal and sends the level signal to the power management chip;
the power management chip generates a wake-up signal based on the level signal;
after the main control chip senses the wake-up signal, a request for exiting the low-power consumption state is sent to the power management chip;
and after the power management chip responds to the request for exiting the low-power-consumption state, controlling the MBB equipment to exit the low-power-consumption state.
In one possible implementation, before sending a request for exiting the low power consumption state to the power management chip, the method further includes:
the main control chip invokes the electrical parameters of the USB interface and sends the electrical parameters to the power management chip.
In one possible implementation, the method further includes:
if the power management chip does not respond to the request for exiting the low power consumption state, returning to execute the step of sending the request for exiting the low power consumption state to the power management chip.
In one possible implementation, the method further includes:
and taking the time of sending a request for exiting the low power consumption state to the power management chip as a wake-up start time, and taking the time of controlling the MBB equipment to exit the low power consumption state to end as a wake-up end time, wherein the duration between the wake-up start time and the wake-up end time is less than or equal to the preset duration.
In a second aspect, an embodiment of the present application provides a low power consumption state control apparatus of an MBB device, including:
the MBB equipment comprises a main control chip, a signal detection circuit and a power management chip, wherein a USB interface is arranged on the main control chip;
the first request sending module is used for receiving a wake-up request signal through the USB interface by the main control chip and sending the wake-up request signal to the signal detection circuit under the condition that the MBB equipment is in a low power consumption state;
the first signal generation module is used for generating a level signal based on the wake-up request signal by the signal detection circuit and sending the level signal to the power management chip;
the second signal generation module is used for generating a wake-up signal based on the level signal by the power management chip;
the second request sending module is used for sending a request for exiting the low-power consumption state to the power management chip after the main control chip perceives the wake-up signal;
and the state control module is used for controlling the MBB equipment to exit the low-power-consumption state after the power management chip responds to the request for exiting the low-power-consumption state.
In one possible implementation manner, before the second request sending module, the method further includes:
the electric parameter sending module is used for the main control chip to call the electric parameters of the USB interface and send the electric parameters to the power management chip.
In one possible implementation, the apparatus further includes:
and the return execution module is used for returning to execute the step of sending the request for exiting the low power consumption state to the power management chip if the power management chip does not respond to the request for exiting the low power consumption state.
In one possible implementation, the apparatus further includes:
the time configuration module is used for taking the time of sending the request for exiting the low-power-consumption state to the power management chip as the wake-up start time and taking the time of controlling the MBB equipment to exit the low-power-consumption state to end as the wake-up end time, wherein the duration between the wake-up start time and the wake-up end time is smaller than or equal to the preset duration.
In a third aspect, an embodiment of the present application provides a terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of a low power consumption state control method of any of the MBB devices described above when the computer program is executed.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of a low power state control method of any of the MBB devices described above.
The embodiment of the application provides a low-power consumption state control method, a device, a terminal and a storage medium of MBB equipment, comprising the following steps: when the MBB equipment is in a low-power-consumption state, the main control chip receives a wake-up request signal through the USB interface and sends the wake-up request signal to the signal detection circuit, the signal detection circuit generates a level signal based on the wake-up request signal and sends the level signal to the power management chip, the power management chip generates the wake-up signal based on the level signal, after the main control chip senses the wake-up signal, a request for exiting the low-power-consumption state is sent to the power management chip, and after the power management chip responds to the request for exiting the low-power-consumption state, the MBB equipment is controlled to exit the low-power-consumption state. According to the application, the signal detection circuit is arranged in the MBB equipment, and the power management chip is triggered by the level signal generated by the signal detection circuit to wake up the MBB equipment (namely, exit the low-power-consumption state), so that the time for waking up the MBB equipment is shortened, the control efficiency of the low-power-consumption state of the MBB equipment is improved, the wake-up time of the MBB equipment meets the protocol specification of USB resume, and USB interface drop or re-enumeration of the MBB equipment in the process of exiting the low-power-consumption state is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application. In the drawings:
FIG. 1 is a flowchart of an implementation of a method for controlling a low power state of an MBB device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an MBB apparatus according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a low power consumption state control device of an MBB apparatus according to an embodiment of the present application;
fig. 4 is a schematic diagram of a terminal according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.
It should be understood that, in various embodiments of the present application, the sequence number of each process does not mean that the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
It should be understood that in the present application, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, and means that three relationships may exist, for example, and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising A, B and C", "comprising A, B, C" means that all three of A, B, C comprise, "comprising A, B or C" means that one of the three comprises A, B, C, and "comprising A, B and/or C" means that any 1 or any 2 or 3 of the three comprises A, B, C.
It should be understood that in the present application, "B corresponding to a", "a corresponding to B", or "B corresponding to a" means that B is associated with a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. The matching of A and B is that the similarity of A and B is larger than or equal to a preset threshold value.
As used herein, "if" may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection" depending on the context.
The technical scheme of the application is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following description will be made by way of specific embodiments with reference to the accompanying drawings.
In one embodiment, as shown in fig. 1, there is provided a low power consumption state control method of an MBB device, including the steps of:
step S101: when the MBB equipment is in a low-power consumption state, the main control chip receives a wake-up request signal through the USB interface and sends the wake-up request signal to the signal detection circuit;
step S102: the signal detection circuit generates a level signal based on the wake-up request signal and sends the level signal to the power management chip;
step S103: the power management chip generates a wake-up signal based on the level signal;
step S104: after the main control chip senses the wake-up signal, a request for exiting the low-power consumption state is sent to the power management chip;
step S105: and after the power management chip responds to the request for exiting the low-power-consumption state, controlling the MBB equipment to exit the low-power-consumption state.
In order to facilitate explanation of the low power state control method of the MBB device, the hardware structure of the MBB device needs to be explained in advance, and referring to fig. 2, the MBB device includes a main control chip (SOC), a signal detection circuit and a power management chip (PMU), where the main control chip (SOC) is electrically connected to the signal detection circuit and the power management chip (PMU), and the signal detection circuit and the power management chip (PMU) are electrically connected to each other. Wherein, USB interfaces, namely USB2.0D-USB2.0D +.
As is apparent from fig. 2, the main control chip (SOC) and the power management chip (PMU) are not obvious, and therefore, the signal detection circuit needs to be described herein, and the signal detection circuit is a circuit between the main control chip (SOC) and the power management chip (PMU), and specifically includes a switch S1, a resistor R2, and a transistor Q1, where a pin S1-1 of the switch S1 is electrically connected to one end of the resistor R2, and the other end of the resistor R2 is electrically connected to the base of the transistor Q1.
After the hardware structure of the MBB device is described by fig. 2, the low power consumption state control method of the MBB device of the present application is described by combining the hardware structure, specifically as follows:
under the condition that the MBB equipment is in a low power consumption state, the main control chip receives a wake-up request signal through the USB interface, wherein the wake-up request signal is sent by a PC (personal computer) or a host computer which is communicated with the MBB equipment through the USB interface, as shown in the figure 2, USB3.0-Port of the PC or the host computer is communicated with interfaces USB2.0D-USB2.0D + of the main control chip of the MBB equipment through interfaces USB2.0D-USB2.0D + so as to send the wake-up request signal to the main control chip.
When the main control chip receives the wake-up request signal through the USB interface, the wake-up request signal is sent to the signal detection circuit, and the signal detection circuit generates a level signal based on the wake-up request signal and sends the level signal to the power management chip. Specifically, after receiving the wake-up request signal, the main control chip introduces the level of the USB interface of the MBB device in the suspend (low power consumption) state into the Q1 transistor through the GPIO (enable_sw) and forms a level opposite to the level at the collector of Q1, and if the level of the USB interface is a long high level, forms a long low level at the collector of Q1; if the level of the USB interface is long low, a long high level is formed at the collector of Q1. That is, since the level of the USB interface triggers a level change of the Q1 collector, i.e., a level signal is generated.
The level Signal is sent to a power management chip through a Wakeup pin, the power management chip generates a Wake-up Signal based on the level Signal, and after the main control chip senses the Wake-up Signal, the main control chip firstly invokes the electrical parameters of the USB interface and sends the electrical parameters to the power management chip, wherein the electrical parameters comprise clocks, voltages, currents and the like of the USB equipment. And then, sending a request for exiting the low-power-consumption state to the power management chip, and controlling the MBB equipment to exit the low-power-consumption state after the power management chip responds to the request for exiting the low-power-consumption state. In addition, if the power management chip does not respond to the request for exiting the low power consumption state, the method returns to execute the step of sending the request for exiting the low power consumption state to the power management chip, that is, continues to send the request for exiting the low power consumption state to the power management chip until the power management chip responds to the request for exiting the low power consumption state, and then controls the MBB equipment to exit the low power consumption state.
The application also starts counting the wake-up time after the main control chip senses the wake-up signal, wherein the wake-up time is the time between the wake-up start time and the wake-up end time, the time of sending a request for exiting the low power consumption state to the power management chip is taken as the wake-up start time, and the time of controlling the MBB equipment to exit the low power consumption state is taken as the wake-up end time. In order to avoid USB port drop or re-enumeration of the MBB device during the process of exiting the low power consumption state, the wakeup duration needs to meet a preset duration specified by the protocol specification of USB resume, that is, a duration between the wakeup start time and the wakeup end time is less than or equal to the preset duration. The preset time period is set according to specific conditions, and is not particularly limited herein.
The embodiment of the application provides a low-power consumption state control method of MBB equipment, which comprises the following steps: when the MBB equipment is in a low-power-consumption state, the main control chip receives a wake-up request signal through the USB interface and sends the wake-up request signal to the signal detection circuit, the signal detection circuit generates a level signal based on the wake-up request signal and sends the level signal to the power management chip, the power management chip generates the wake-up signal based on the level signal, after the main control chip senses the wake-up signal, a request for exiting the low-power-consumption state is sent to the power management chip, and after the power management chip responds to the request for exiting the low-power-consumption state, the MBB equipment is controlled to exit the low-power-consumption state. According to the application, the signal detection circuit is arranged in the MBB equipment, and the power management chip is triggered by the level signal generated by the signal detection circuit to wake up the MBB equipment (namely, exit the low-power-consumption state), so that the time for waking up the MBB equipment is shortened, the control efficiency of the low-power-consumption state of the MBB equipment is improved, the wake-up time of the MBB equipment meets the protocol specification of USB resume, and USB interface drop or re-enumeration of the MBB equipment in the process of exiting the low-power-consumption state is avoided.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.
The following are device embodiments of the application, for details not described in detail therein, reference may be made to the corresponding method embodiments described above.
Fig. 3 is a schematic structural diagram of a low power consumption state control device of an MBB device according to an embodiment of the present application, and for convenience of explanation, only a portion related to the embodiment of the present application is shown, where the low power consumption state control device of an MBB device includes a first request sending module 31, a first signal generating module 32, a second signal generating module 33, a second request sending module 34, and a state control module 35, specifically as follows:
the MBB equipment comprises a main control chip, a signal detection circuit and a power management chip, wherein a USB interface is arranged on the main control chip;
the first request sending module 31 is configured to receive a wake-up request signal through the USB interface by using the main control chip when the MBB device is in a low power consumption state, and send the wake-up request signal to the signal detection circuit;
a first signal generating module 32 for generating a level signal by the signal detecting circuit based on the wake-up request signal and transmitting the level signal to the power management chip;
a second signal generating module 33, configured to generate a wake-up signal by the power management chip based on the level signal;
the second request sending module 34 is configured to send a request for exiting the low power consumption state to the power management chip after the main control chip perceives the wake-up signal;
the state control module 35 is configured to control the MBB device to exit the low power consumption state after the power management chip responds to the request for exiting the low power consumption state.
In one possible implementation, before the second request sending module 34, the method further includes:
the electric parameter sending module is used for the main control chip to call the electric parameters of the USB interface and send the electric parameters to the power management chip.
In one possible implementation, the apparatus further includes:
and the return execution module is used for returning to execute the step of sending the request for exiting the low power consumption state to the power management chip if the power management chip does not respond to the request for exiting the low power consumption state.
In one possible implementation, the apparatus further includes:
the time configuration module is used for taking the time of sending the request for exiting the low-power-consumption state to the power management chip as the wake-up start time and taking the time of controlling the MBB equipment to exit the low-power-consumption state to end as the wake-up end time, wherein the duration between the wake-up start time and the wake-up end time is smaller than or equal to the preset duration.
Fig. 4 is a schematic diagram of a terminal according to an embodiment of the present application. As shown in fig. 4, the terminal 4 of this embodiment includes: a processor 41, a memory 42 and a computer program 43 stored in the memory 42 and executable on the processor 41. The steps in the low power consumption state control method embodiment of each MBB device described above, such as steps 101 to 105 shown in fig. 1, are implemented when the processor 41 executes the computer program 43. Alternatively, the processor 41, when executing the computer program 43, implements the functions of the modules/units in the embodiments of the low power state control apparatus for each MBB device described above, such as the functions of the modules/units 31 to 35 shown in fig. 3.
The application also provides a readable storage medium, wherein a computer program is stored in the readable storage medium, and the computer program is used for realizing the low-power consumption state control method of the MBB equipment provided by the various embodiments when being executed by a processor.
The readable storage medium may be a computer storage medium or a communication medium. Communication media includes any medium that facilitates transfer of a computer program from one place to another. Computer storage media can be any available media that can be accessed by a general purpose or special purpose computer. For example, a readable storage medium is coupled to the processor such that the processor can read information from, and write information to, the readable storage medium. In the alternative, the readable storage medium may be integral to the processor. The processor and the readable storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuits, ASIC for short). In addition, the ASIC may reside in a user device. The processor and the readable storage medium may reside as discrete components in a communication device. The readable storage medium may be read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tape, floppy disk, optical data storage device, etc.
The present application also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the device may read the execution instructions from the readable storage medium, and execution of the execution instructions by the at least one processor causes the device to implement the low power state control method of the MBB device provided by the various embodiments described above.
In the above embodiment of the apparatus, it should be understood that the processor may be a central processing unit (english: central Processing Unit, abbreviated as CPU), or may be other general purpose processors, digital signal processors (english: digital Signal Processor, abbreviated as DSP), application specific integrated circuits (english: application Specific Integrated Circuit, abbreviated as ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. A low power consumption state control method of an MBB device, comprising:
the MBB equipment comprises a main control chip, a signal detection circuit and a power management chip, wherein a USB interface is arranged on the main control chip;
when the MBB equipment is in a low-power consumption state, the main control chip receives a wake-up request signal through a USB interface and sends the wake-up request signal to the signal detection circuit;
the signal detection circuit comprises a switch S1, a resistor R2 and a triode Q1, wherein a pin S1-1 of the switch S1 is electrically connected with one end of the resistor R2, and the other end of the resistor R2 is electrically connected with a base electrode of the triode Q1;
the signal detection circuit generates a level signal based on the wake-up request signal and sends the level signal to the power management chip;
the power management chip generates a wake-up signal based on the level signal;
after the main control chip senses the wake-up signal, a request for exiting a low-power consumption state is sent to the power management chip;
and after the power management chip responds to the request for exiting the low power consumption state, controlling the MBB equipment to exit the low power consumption state.
2. The method for controlling the low power state of the MBB device according to claim 1, further comprising, before sending a request to the power management chip to exit the low power state:
and the main control chip is used for calling the electrical parameters of the USB interface and sending the electrical parameters to the power management chip.
3. The method of low power state control of an MBB device of claim 2, wherein the method further comprises:
and if the power management chip does not respond to the request for exiting the low power consumption state, returning to execute the step of sending the request for exiting the low power consumption state to the power management chip.
4. A method of controlling a low power state of an MBB device according to any one of claims 1-3, wherein the method further comprises:
and taking the time of sending the request for exiting the low power consumption state to the power management chip as a wake-up start time, and taking the time of controlling the MBB equipment to exit the low power consumption state to end as a wake-up end time, wherein the duration between the wake-up start time and the wake-up end time is smaller than or equal to a preset duration.
5. A low power consumption state control apparatus of an MBB device, comprising:
the MBB equipment comprises a main control chip, a signal detection circuit and a power management chip, wherein a USB interface is arranged on the main control chip;
the first request sending module is used for receiving a wake-up request signal through a USB interface by the main control chip and sending the wake-up request signal to the signal detection circuit when the MBB equipment is in a low-power consumption state; the signal detection circuit comprises a switch S1, a resistor R2 and a triode Q1, wherein a pin S1-1 of the switch S1 is electrically connected with one end of the resistor R2, and the other end of the resistor R2 is electrically connected with a base electrode of the triode Q1;
the first signal generation module is used for generating a level signal based on the wake-up request signal by the signal detection circuit and sending the level signal to the power management chip;
the second signal generation module is used for generating a wake-up signal based on the level signal by the power management chip;
the second request sending module is used for sending a request for exiting the low-power consumption state to the power management chip after the main control chip senses the wake-up signal;
and the state control module is used for controlling the MBB equipment to exit the low-power consumption state after the power management chip responds to the request for exiting the low-power consumption state.
6. The apparatus for controlling a low power state of an MBB device according to claim 5, further comprising, before the second request transmitting module:
and the electric parameter sending module is used for the main control chip to call the electric parameters of the USB interface and send the electric parameters to the power management chip.
7. The apparatus for controlling a low power state of an MBB device according to claim 6, wherein the apparatus further comprises:
and the return execution module is used for returning to execute the step of sending the request for exiting the low power consumption state to the power management chip if the power management chip does not respond to the request for exiting the low power consumption state.
8. The low power state control apparatus of an MBB device according to any one of claims 5-7, wherein the apparatus further comprises:
the time configuration module is used for taking the time when the request for exiting the low power consumption state is sent to the power management chip as a wake-up start time and the time when the MBB equipment is controlled to exit the low power consumption state is controlled to end as a wake-up end time, wherein the duration between the wake-up start time and the wake-up end time is smaller than or equal to a preset duration.
9. A terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the low power state control method of the MBB device according to any one of claims 1-4 when the computer program is executed.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the low power consumption state control method of the MBB device according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210640891.1A CN115118534B (en) | 2022-06-07 | 2022-06-07 | Low-power-consumption state control method, device, terminal and storage medium of MBB equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210640891.1A CN115118534B (en) | 2022-06-07 | 2022-06-07 | Low-power-consumption state control method, device, terminal and storage medium of MBB equipment |
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