CN109885341A - A kind of common apparatus driving model, system and application - Google Patents
A kind of common apparatus driving model, system and application Download PDFInfo
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Abstract
The invention discloses a kind of common apparatus driving model, system and applications, belong to the device Driver Model field of embedded equipment.By designing a set of general data control structure and function interface, specifically, device name is determined according to the class to all devices, of a sort equipment device name having the same, of a sort equipment is distinguished by device id, further, the various operations of each equipment are distinguished by unified device channels number, the tunnel name of each equipment is then made of device id and channel number, channel handle is created according to the tunnel name, different operation to each equipment is realized by channel handle, driving model itself and the realization of the operation of specific equipment are full decoupled during this, to achieve the purpose that provide a kind of common apparatus driving model, the common apparatus driving model can support the embedded device for having operating system, also it can support do not have operating system, do not have the embedded device of driven management module.
Description
Technical field
The present invention relates to a kind of common apparatus driving model, system and applications, belong to the device drives mould of embedded equipment
V-neck V domain.
Background technique
It is so-called embedded, generally refer to embedded system；Embedded system is by application program, operating system and to calculate
The system of machine hardware together, refers to application-centered, and based on computer technology, software and hardware can be cut, and be directed to
User applies the dedicated computer system for having particular/special requirement to function, reliability, cost, volume, power consumption and use environment.
Embedded system can realize function required for user, usually as device or a part of equipment, and have embedding
The device or equipment of embedded system are known as embedded equipment or embedded device.Be typically embedded into formula device or equipment can realize it is more
A function, and current embedded equipment is many kinds of, the driver of equipment is also varied, thus to the management of equipment,
The transplanting of driving brings many inconvenience.
Embedded system all has the driving model of itself at present, for being managed collectively to driving, but is different
Driving model between embedded system is simultaneously incompatible, and generally all has certain coupled relation with embedded system itself.
In addition, many embedded devices do not have operating system, also without the device Driver Model for equipment management, it is easy in this way
So that the management of the driving of various equipment becomes chaotic, it is difficult to position once there is exception, many inconvenience is also brought to transplanting.
Summary of the invention
In order to solve presently, there are ununified device Driver Model come each embedded system to embedded device
The problem of being managed collectively, the present invention provides a kind of common apparatus driving model, system and applications.
The first purpose of this invention is to provide a kind of common apparatus driving model, the common apparatus driving model packet
Include three layering logic layers: device drive layer, equipment management layer, application layer；Wherein, the equipment management layer has general data
Control structure and function interface.
Optionally, the equipment management layer distinguishes different device types by device name, is distinguished not by device id
Same equipment, same type of equipment have different device ids；Each equipment realizes different operations by different channels,
Different channels has different channel numbers in same equipment.
Optionally, the different channel of each equipment has tunnel name, and the tunnel name is by device id and channel number structure
At.
Optionally, the equipment management layer provides unified management interface to the device drive layer；All devices according to
The general data control structure that equipment management layer provides realizes corresponding device instance, the data control structure packet
It includes: device name, equipment function list pointer, device id, device parameter, device type, the privately owned global variable pointer of equipment.
Optionally, the general function interface that the equipment management layer has includes that unified control instruction and transmission refer to
It enables；The unified control instruction and transmission instruction include: equipment initialization, device reset, device clear, equipment reading, equipment
It writes, equipment suspension, equipment refreshing, device configuration, the different operation of each equipment passes through the unified control instruction and transmission
Instruction is realized.
Optionally, the device drive layer provides equipment initialization interface, apparatus bound interface and equipment and searches interface, root
Equipment application layer is supplied to according to the creation channel handle of channel number corresponding to the ID of each equipment and variant operation.
Optionally, the function list of each equipment includes fixed interface: apparatus bound, equipment unbundlings, channel control, channel
Creation, channel deletion, channel operation.
Second object of the present invention is to provide a kind of common apparatus drive system, general sets the system comprises above-mentioned
Standby driving model.
Third object of the present invention is to provide a kind of common apparatus driving method, and the method is applied to above-mentioned general
In device Driver Model and/or above-mentioned common apparatus drive system.
Optionally, which comprises
Global list of devices and initial is added in all devices by all devices in equipment management layer search model or system
Change, the initialization includes logical in equipment class, device name, device id and each equipment belonging to determining all devices difference
Taoist monastic name, tunnel name；Wherein the tunnel name is made of device id and channel number；
Device drive layer binds all devices according to device name, device id, and is created and led to according to the tunnel name of equipment
Road handle is simultaneously supplied to equipment application layer；
Equipment application layer encapsulates channel handle with for users to use, to realize through unified driving model to each equipment
Different operation is driven.
The medicine have the advantages that
A kind of common apparatus driving model provided by the invention, by designing a set of general data control structure and function
Interface, specifically, device name determined according to the class to all devices, of a sort equipment device name having the same,
Of a sort equipment is distinguished by device id, further, passes through unified device channels to the various operations of each equipment
It number distinguishing, the tunnel name of each equipment is then made of device id and channel number, channel handle is created according to the tunnel name,
Different operation to each equipment is realized by channel handle, driving model itself and the realization of the operation of specific equipment are complete during this
Full decoupling, to achieve the purpose that provide a kind of common apparatus driving model, which can support have
The embedded device of operating system can also support the embedded device for not having operating system, not having driven management module.
In addition be also equipped be easy to transplant, the features such as user interface is simple and reliable.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the framework and control flow schematic diagram of common apparatus driving model.
Fig. 2 is equipment management layer structure and device drive layer control data structure schematic diagram in common apparatus driving model.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one:
The present embodiment provides a kind of common apparatus driving models, and referring to Fig. 1, the common apparatus driving model includes three
Layering logic layers: device drive layer, equipment management layer, application layer；Wherein, there are the equipment management layer general data to control knot
Structure and function interface.
The equipment management layer distinguishes different device types by device name, distinguishes different set by device id
Standby, same type of equipment has different device ids；Each equipment realizes different operations by different channels, same to set
Standby middle different channel has different channel numbers.
The different channel of each equipment has tunnel name, and the tunnel name is made of device id and channel number.
Such as, it is assumed that it include 11 equipment in certain embedded system, and this 11 equipment belong to 5 equipment classes, wherein setting
Standby class 1 has 1 instantiation equipment, and equipment class 2 has 2 instantiation equipment, and equipment class 3 has 3 instantiation equipment, equipment
Class 4 has 2 instantiation equipment, and equipment class 5 has 3 instantiation equipment, then the entitled device name 1 of equipment class 1, it
Only 1 instantiation equipment, therefore it is 11 equipment that the equipment class 1 of device name 1, which has device id,；The title of equipment class 2
For device name 2, it has 2 instantiation equipment, therefore it is respectively two of 1,2 that the equipment class 2 of device name 2, which has device id,
Equipment；The entitled device name 3 of equipment class 3, it has 3 instantiation equipment, therefore the equipment class 3 of device name 3 has and sets
Standby ID is respectively 1,2,3 three equipment；The entitled device name 4 of equipment class 4, it has 2 instantiation equipment, therefore equipment
It is respectively 1,2 two equipment that the equipment class 4 of title 4, which has device id,；The entitled device name 5 of equipment class 5, it has 3
Equipment is instantiated, therefore it is 1,2,33 equipment that the equipment class 5 of device name 5, which has device id,.
Assuming that the equipment tool that the device id that equipment class 2 includes is 1 realizes different operations, four channel numbers there are four channel
Respectively A, B, C, D；The equipment tool that the device id that equipment class 2 includes is 2 realizes different operations, three channels there are three channel
Number be respectively A, B, C；So device id be 1 equipment four channels tunnel name then be respectively equipment 1-A, equipment 1-B,
Equipment 1-C, equipment 1-D；And the title in three channels of the equipment that device id is 2 is then respectively equipment 2-A, equipment 2-B, equipment
2-C；
It is such then do not have to distinguish each specific equipment, it also not distinguish the different operation of each equipment and realize, only according to logical
Title creates channel handle, is realized by channel handle to the different operation of each equipment, driving model itself and specifically during this
The realization of the operation of equipment is full decoupled, to achieve the purpose that provide a kind of common apparatus driving model.
A specific embodiment of the invention is described further with reference to the accompanying drawing.
1, a kind of framework of common apparatus driving model provided in this embodiment is divided into three layers, and inside passes through a set of unification
Control data structure is managed, as shown in Figure 2:
1.1, device drive layer
Device drive layer safeguards that a global list of devices control module, the control module include:
1) initialize complement mark: it is 0 that list of devices initialization, which does not complete mark, and initialization complement mark is 1.
2) device category number: the number of all devices class scanned.
3) global list of devices pointer: it is directed toward an equipment class list, entry therein is equipment class pointer, sensing equipment
The example of class control data structure.
1.2, equipment management layer
A set of unified device data control structure that equipment management layer is provided by itself completes the pipe to all devices
Reason.
It 1) is equipment class control data structure first, equipment class is to realize the reality of same user function but device drives
The set of the existing distinguishing a kind of equipment of process, equipment class data control structure include:
1. device name: all devices of an equipment class share a device name, such as above equipment class 1, equipment
Class 2, equipment class 3, equipment class 4, equipment class 5.
2. equipment operation interface: including apparatus bound, equipment unbundlings, device channels creation, device channels are deleted, equipment is led to
Road control, six unified interfaces such as device channels processing.The multiple equipment of one equipment class, which shares, passes through a set of realization interface.
3. device parameter: the global private variable of equipment class.
4. device type.
5. device structure pointer: being directed toward a device structure array of pointers, include all devices for including under equipment class.
2) followed by device control data structure includes:
1. equipment state: indicating whether device channels can be used, 1 indicates available, and 0 indicates unavailable.
2. equipment mode: the available input pattern of equipment, output mode, input and output mode.
3. device channels structured fingers: being directed toward a device channels structured fingers array, include channel all under equipment
Control data structure.
3) device channels control data structure includes:
1. channel use state: 1 expression channel can be used, 0 indicates that channel is unavailable.
2. channel pattern: including input, output mode.
3. channel status: the channel opening of expression, closed state.
4. the ID number of equipment where channel: the device id inside each equipment class is numbered from 1.
5. channel private data structure: the private data and equipment management model that device channels use are unrelated.
2, the function of each layering of driving model of the invention is as shown in Figure 1:
2.1, device drive layer:
Device drive layer is responsible for scanning, collects equipment, and the equipment for scanning, collecting is added to global list of devices.
Device drive layer also provides apparatus bound interface to application layer, binds using that can pass through device name and device id
Specific equipment；The creation interface of device channels is provided to application layer, application layer can be logical according to the equipment generated after creation
Road handle and the instruction control corresponding function of equipment.
2.2, equipment management layer:
Equipment management layer is by a series of data structure of definition by all equipment classes, equipment, the reality of device channels
It now maps, bind together.
When device drive layer application apparatus bound, the device name that is provided according to device drive layer, device id can be with
Bind specific equipment.
When device drive layer creates device channels, equipment management layer finds setting of having bound by tunnel name
It is standby, and corresponding device channels are found to device drive layer backward channel handle.
Device channels can realize that specific operation, the instruction of user include: equipment initialization, set according to the instruction of user
Standby reset, device clear, equipment is read, equipment is write, equipment stops, equipment refreshes, device configuration.All equipment classes all have reality
The ability of these existing instructions, different equipment can choose as needed only realizes a part instruction therein.
2.3, application layer:
Application layer is responsible for application creation channel, and after Acquisition channel handle, handle is packaged and is supplied to use
Family uses.User realizes the operation and control to channel using packaged interface.Therefore user does not need interested devices driving
The realization of realization, the driving of model, convenient for transplanting.
3, the driving model of the present embodiment and its internal control process, as shown in Figure 1:
3.1, the equipment for searching for all realizations, the equipment of all realizations are all managed collectively by equipment management layer, device drives
Layer is responsible for scanning and obtaining the pointer of these equipment, is added to global list of devices control block, completes global list of devices control
The initialization of block.
3.2, specific equipment is bound according to device name, device id, corresponding equipment can be found according to device name
Class can bind the equipment in designated equipment class according to device id.Note that the label of the internal unit ID of each equipment class from
1 starts.The equipment specifically supported according to hardware is needed to determine and which device id is selected to be initialized.
3.3, equipment handle is created according to device channels title, device channels title be device name plus suffix "-A ",
"-B " realizes that "-A " is exactly channel 1, and "-B " is exactly channel 2, and so on.When creating device channels handle, according to setting
Then the equipment bound when finding corresponding equipment class for name, then find apparatus bound is created according to the channel that equipment provides
Interface creates channel and returning equipment channel handle.
3.4, equipment application layer can pass through device channels handle, operational order, the corresponding specific function of Lai Shixian equipment
Energy.The operations of equipment application layer sealed in unit channel handle are supplied to user's use.
Embodiment two:
The present embodiment provides a kind of concrete applications of above-mentioned common apparatus driving model, are described in detail as follows:
For example certain embedded device has 6 serial ports peripheral hardwares, 1 I2C peripheral hardware, 2 SPI peripheral hardwares, then we use this
The driving model of invention develops driven management framework, and the driver of all peripheral hardwares is all the framework for meeting requirement of the invention
(data structure realizes interface): the embedded device has four class peripheral hardwares, and device class name claims to be respectively as follows: uart, i2c, spi.
The operation that the driving of equipment class 1 (uart) is realized includes: initialization, configuration, reads data, write data, close, we
The corresponding driving interface of architecture design according to the invention.Equipment class 1 (uart) includes 6 serial equipments, ID number is respectively 1,
2……6.The operation (initialize, configure, read data, write data, close) of equipment respectively corresponds corresponding operation and realizes that 5 lead to
Road: A, B, C, D, E.It is 1-A, 1-B, 1-C, 1-D, 1-E, the behaviour that device id is 2 after the operating walk way instantiation that device id is 1
Making channel instantiation later is 2-A, 2-B, 2-C, 2-D, 2-E, and so on.The drive code set for 6 peripheral hardwares that equipment class 1 includes
Equipment that is completely the same, turning to 6 distinct device ID using examples of architectures of the invention.
The operation that the driving of equipment class 2 (i2c) is realized includes initialization, reads data, closes, our framves according to the invention
Structure designs corresponding driving interface.Equipment class 2 (i2c) includes 1 I2C equipment, ID number 1.(initialization is read for the operation of equipment
Data) respectively correspond 2 channels of corresponding operation realization: A, B.It is 1-A, 1- after the operating walk way instantiation that device id is 1
B.Equipment class 2 turns to 1 equipment using examples of architectures of the invention.
The operation that the driving of equipment class 3 (spi) is realized includes: initialization, reads data, write data, close, we are according to this
The corresponding driving interface of the architecture design of invention.Equipment class 3 (uart) includes 2 serial equipments, and ID number is respectively 1,2.Equipment
Operation (initialize, read data, write data, close) respectively correspond corresponding operation realize 4 channels: A, B, C, D.Device id
To be 1-A, 1-B, 1-C, 1-D after 1 operating walk way instantiation, be after the operating walk way instantiation that device id is 2 2-A,
2-B, 2-C, 2-D, and so on.The drive code set for 2 peripheral hardwares that equipment class 3 includes is completely the same, uses framework of the invention
The equipment for being instantiated as 2 distinct device ID.
It is some embedded device above, uses driving architecture management three classes peripheral hardware (uart, i2c, spi) of the invention
Realization example.
Additionally now there is one group of embedded device, the peripheral hardware used (uart, i2c, spi) model is consistent, is respectively necessary for reality
Existing 2 serial ports peripheral hardwares, 6 I2C peripheral hardwares, 4 SPI peripheral hardwares.Utilize driving framework of the invention, it is only necessary to seldom modification energy
Complete transplanting:
The instantiation number of this equipment class is revised as 2 by equipment class 1 (uart), turns to 2 using examples of architectures of the invention
Device id is respectively 1,2 equipment.
The instantiation number of this equipment class is revised as 6 by equipment class 2 (i2c), is turned to 6 using examples of architectures of the invention and is set
Standby device id is respectively 1,2,3,4,5,6 equipment.
The instantiation number of this equipment class is revised as 4 by equipment class 3 (spi), is turned to 4 using examples of architectures of the invention and is set
Standby ID is respectively 1,2,3,4 equipment.
It only needs to modify instantiation configuration to be just transplanted to the driving of embedded device and its management framework
Above another embedded device.
The implementation of device Driver Model of the invention, the realization for embedded equipment driving bring unified, convenient and fast management
And implementation, to drive the transplanting with application program to provide convenience.
Part steps in the embodiment of the present invention, can use software realization, and corresponding software program can store can
In the storage medium of reading, such as CD or hard disk.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of common apparatus driving model, which is characterized in that the common apparatus driving model includes three layering logic layers: being set
Standby driving layer, equipment management layer, application layer；Wherein, there is the equipment management layer general data control structure and function to connect
Mouthful.
2. common apparatus driving model according to claim 1, which is characterized in that the equipment management layer passes through implementor name
Claim to distinguish different device types, different equipment is distinguished by device id, same type of equipment has different device ids；
Each equipment realizes different operations by different channels, and different channels has different channel numbers in same equipment.
3. common apparatus driving model according to claim 2, which is characterized in that the different channel of each equipment has logical
Road title, the tunnel name are made of device id and channel number.
4. common apparatus driving model according to claim 3, which is characterized in that the equipment management layer is to the equipment
Driving layer provides unified management interface；All devices are realized each according to the general data control structure that equipment management layer provides
Self-corresponding device instance, the data control structure include: device name, equipment function list pointer, device id, equipment
The privately owned global variable pointer of parameter, device type, equipment.
5. common apparatus driving model according to claim 4, which is characterized in that the equipment management layer has general
Function interface include unified control instruction and transmission instruction；The unified control instruction and transmission instruction include: equipment
Initialization, device reset, device clear, equipment is read, equipment is write, equipment stops, equipment refreshes, device configuration, each equipment
Different operation is realized by the unified control instruction and transmission instruction.
6. common apparatus driving model according to claim 5, which is characterized in that at the beginning of the device drive layer provides equipment
Beginningization interface, apparatus bound interface and equipment search interface, according to channel corresponding to the ID of each equipment and variant operation
Number creation channel handle be supplied to equipment application floor.
7. common apparatus driving model according to claim 6, which is characterized in that the function list of each equipment includes solid
Stationary interface: apparatus bound, equipment unbundlings, channel control, channel creation, channel deletion, channel operation.
8. a kind of common apparatus drive system, which is characterized in that general set the system comprises as claimed in claim 1 to 7
Standby driving model.
9. a kind of common apparatus driving method, which is characterized in that the method is applied to as claimed in claim 1 to 7 general
In device Driver Model and/or common apparatus drive system according to any one of claims 8.
10. common apparatus driving method according to claim 9, which is characterized in that the described method includes:
All devices are added global list of devices and initialized by all devices in equipment management layer search model or system,
The initialization includes the channel determined in equipment class, device name, device id and each equipment belonging to all devices difference
Number, tunnel name；Wherein the tunnel name is made of device id and channel number；
Device drive layer binds all devices according to device name, device id, and creates channel sentence according to the tunnel name of equipment
Handle is simultaneously supplied to equipment application layer；
Equipment application layer encapsulates channel handle with for users to use, to realize through unified driving model to the difference of each equipment
Operation is driven.
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| CN111090427A (en) * | 2019-12-31 | 2020-05-01 | 北京简约纳电子有限公司 | Method for constructing USB composite equipment during operation in embedded system |
| CN111506360A (en) * | 2020-03-26 | 2020-08-07 | 南京国电南自维美德自动化有限公司 | External equipment access system and method of real-time data processing system |
| CN111856977A (en) * | 2020-07-31 | 2020-10-30 | 成都新潮传媒集团有限公司 | Control method and device of multimedia terminal and storage medium |
| CN112612523A (en) * | 2020-12-17 | 2021-04-06 | 威胜集团有限公司 | Embedded equipment driving system and method |
| CN112988144A (en) * | 2019-12-02 | 2021-06-18 | 北京华航无线电测量研究所 | Universal embedded event-driven software development framework and using method |
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| CN113359841A (en) * | 2021-06-29 | 2021-09-07 | 西北工业大学 | Unified driving model for unmanned aerial vehicle heterogeneous load equipment |
| CN113296747A (en) * | 2021-07-27 | 2021-08-24 | 南京理控物联技术有限公司 | Method for efficiently docking various mounting devices through software in intelligent lamp pole system |
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Application publication date: 20190614 |