CN102981875A - X86 end press key adapting method and system based on android - Google Patents
X86 end press key adapting method and system based on android Download PDFInfo
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Abstract
The invention provides an x86 end press key adapting method and an x86 end press key adapting system which are based on android. The x86 end press key adapting method based on the android comprises the following steps of: simulation press key driving creation step, wherein the simulation press key driving is created in an android kernel source code catalogue, and then, a press key event is constructed in user space and is written into an android kernel; press key event writing-in step, wherein the press key event is written into an event equipment node from android middleware; press key collection step; and processing step, wherein press key types sent by a microcontroller are judged, and in addition, the respective and corresponding processing is carried out. The press key adaption is realized through the simulation press key driving creation step, the effect that the press key collection and the press key processing can be separated and respectively operated in the microcontroller and a central processing unit of the X86 end is realized, the response speed is high, and the effect of starting a non-launcher android application program interface by a hard press key can also be realized.
Description
Technical field
The present invention relates to the adaptive method of a kind of button, relate in particular to a kind of x86 end button adaptation method based on android that can respond fast, and the x86 end button adaption system based on android is provided.
Background technology
In the existing dual-CPU system, the adaptive android input that generally uses of button orders, or key value is sent to the android application layer, by interprocess communication key value is sent in the event queue of application layer of android input system and process, the method is because the efficient of the interprocess communication of android application layer is low, therefore can't satisfy the adaptive response time requirement of X86 end button, more consuming time, generally need about 500ms.And under the method, hard button starts the android Application Program Interface except launcher, launcher then can't monitor the key-press event of android input system if not foreground activity, does not realize that therefore hard button starts the outer Application Program Interface of launcher.
Summary of the invention
Technical matters to be solved by this invention is need to provide a kind of can respond fast.And can realize the x86 based on android that the outer Application Program Interface of launcher starts is held the button adaptation method.
To this, the invention provides a kind of x86 end button adaptation method based on android, may further comprise the steps:
Create the analogue-key actuation step, under android kernel source code catalogue, create analogue-key and drive, drive in the user's space structure key-press event of android and be written in the android kernel by analogue-key;
The key-press event write step writes key-press event at the android middleware in the event device node;
The button acquisition step is connected to hard button and X86 end micro controller independently mutually, by micro controller button is collected key value; And,
Treatment step is judged the push-button type that micro controller sends over, if belong to the non-standard button of android, then the AM order by android encapsulates key value and broadcast, and broadcasting starts corresponding function interface after sending launcher to; If belong to the standard key of android, then key value is write analogue-key and drive in the corresponding key-press event, the input system of android is finished the corresponding function of key-press event after reading key-press event.
Wherein, the android middleware comprises hardware adaptation layer and framework layer, is positioned at more than the Android system kernel-driven layer, below the application layer; Analogue-key drives and refers to realize a driving, be written in this driving collecting key information at user's space, and report key information to input system by this driving, key information also claims key value, and the button driving is the part of linux system drive, and key information drives to gather by button and reports the input system processing; The AM order is the peculiar shell-command of android, is used for carrying out the broadcasting action, realizes to system broadcast information.
The present invention is based in the system of two CPU, the central processing unit that specifically comprises micro controller and X86 end, wherein, micro controller is responsible for the unified button that detects, namely button is collected key value, and key value is uploaded to the CPU end of the X86-based of operation android, central processing unit end namely, for key value being fitted in the input system of android, and in the android kernel-driven, use analogue-key to drive, register the driving of key-press event, and finish the adaptive of button at the android middleware.
Further improvement of the present invention is that described establishment analogue-key actuation step comprises:
Under android kernel source code catalogue, create analogue-key and drive, and in analogue-key drives registration key scan code to be processed, guarantee simultaneously to contain key scan code to be processed in the key arrangement file of android;
The loading simulation button drives, and generates the event device node;
Open the event device node at the android middleware; And,
The structure key-press event also is written to key-press event in this event device node successively, and it is adaptive to finish button.
Compared with prior art, the present invention realizes that by creating the analogue-key actuation step button is adaptive, realize the separately respectively operation in the central processing unit of micro controller and X86 end of button collection and keystroke handling, hard button is connected to micro controller, the button that has reduced the x86 end is the complexity that realizes of knob particularly, and is convenient to button is carried out unified management; In addition, realize that at x86 end android kernel analogue-key drives, the driving of registration key-press event, generate the event device node, such as/dev/input/event0, in the event device node, write key-press event at the android middleware, the response time is below the 100ms, about using in compared to existing technology key response time that android input orders as 500ms, the present invention has improved 5 times corresponding speed; On this basis, the present invention realizes that also hard button starts the android Application Program Interface of non-launcher, receives key value by launcher, just can start corresponding Application Program Interface.
Further improvement of the present invention is that described micro controller is for holding CPU or the MCU that works alone mutually with X86.Because micro controller is mainly used in button is detected, realize the collection of key value, therefore not high to the requirement of micro controller, can both realize that with CPU or MCU cost is low.
Further improvement of the present invention is that the non-standard button of android refers to the hard button that starts the outer Application Program Interface of launcher.Preferably, the hard button of the Application Program Interface outside the launcher comprises at least a button in phone, navigation, radio reception, music, video, emergency and the text message.The present invention is adaptive for non-android key-press event, do not need key value is written in the android input system, but after the android middleware receives the key value that micro controller sends, the AM order of use android is encapsulated as intent with key value and sends launcher to, then start corresponding function interface by launcher, can realize that so just hard button starts the android Application Program Interface outside the launcher, such as phone/navigation/launcher/FM/Music/Movie/SOS/ICall/Web function, the switching between the practical function interface.
The present invention also provides a kind of x86 end button adaption system based on android, comprises the central processing unit of micro controller and X86 end, and described central processing unit and micro controller work alone respectively; Wherein, micro controller is used for realizing button is gathered, and obtains key value; Described central processing unit is used for realization to the processing of key value.Should based on the x86 end button adaption system of android, preferably adopt the above-mentioned x86 end button adaptation method based on android.
Further improvement of the present invention is, after central processing unit received the key value that micro controller gathers, it was adaptive to carry out button by middleware; Button is adaptive to be sent to analogue-key after finishing and drives the drive load that carries out key-press event, is about to key value and writes analogue-key and drive in the corresponding key-press event; Be connected at last the realization of carrying out function in the input system.
Compared with prior art, the present invention realizes that by creating the analogue-key actuation step button is adaptive, realize the separately respectively operation in the central processing unit of micro controller and X86 end of button collection and keystroke handling, hard button is connected to micro controller, reduced the button of x86 end adaptive, the adaptive complexity of knob of particularly x86 being held, and be convenient to button is carried out unified management; And, realize that at x86 end android kernel analogue-key drives, the driving of registration key-press event, generate the event device node, such as/dev/input/event0, in the event device node, write key-press event at the android middleware, the response time is below the 100ms, about using in compared to existing technology key response time that android input orders as 500ms, the present invention has improved 5 times response speed; On this basis, the present invention realizes that also hard button starts the android Application Program Interface of non-launcher, receives key value by launcher, can start corresponding Application Program Interface.
Description of drawings
Fig. 1 is the workflow synoptic diagram of an embodiment of the present invention;
Fig. 2 is the system architecture synoptic diagram of the another kind of embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, more excellent embodiment of the present invention is described in further detail:
Embodiment 1:
This example provides a kind of x86 end button adaptation method based on android, may further comprise the steps:
Create the analogue-key actuation step, under android kernel source code catalogue, create analogue-key and drive, drive in the user's space structure key-press event of android and be written in the android kernel by analogue-key;
The key-press event write step writes key-press event at the android middleware in the event device node;
The button acquisition step is connected to hard button and X86 end micro controller independently mutually, by micro controller button is collected key value; And,
Treatment step is judged the push-button type that micro controller sends over, if belong to the non-standard button of android, then the AM order by android encapsulates key value and broadcast, and broadcasting starts corresponding function interface after sending launcher to; If belong to the standard key of android, then key value is write analogue-key and drive in the corresponding key-press event, the input system of android is finished the corresponding function of key-press event after reading key-press event.
Wherein, the android middleware comprises hardware adaptation layer and framework layer, is positioned at more than the Android system kernel-driven layer, below the application layer; Analogue-key drives and refers to realize a driving, be written in this driving collecting key information at user's space, and report key information to input system by this driving, key information also claims key value, and the button driving is the part of linux system drive, and key information drives to gather by button and reports the input system processing; The AM order is the peculiar shell-command of android, is used for carrying out the broadcasting action, realizes to system broadcast information.
In the system of this example based on two CPU, the central processing unit that specifically comprises micro controller and X86 end, wherein, micro controller is responsible for the unified button that detects, namely button is collected key value, and key value is uploaded to the CPU end of the X86-based of operation android, central processing unit end namely, for key value being fitted in the input system of android, and in the android kernel-driven, use analogue-key to drive, register the driving of key-press event, and finish the adaptive of button at the android middleware.
The further improvement of this example is that described establishment analogue-key actuation step comprises:
Under android kernel source code catalogue, create analogue-key and drive, and in analogue-key drives registration key scan code to be processed, guarantee simultaneously to contain key scan code to be processed in the key arrangement file of android;
The loading simulation button drives, and generates the event device node;
Open the event device node at the android middleware; And,
The structure key-press event also is written to key-press event in this event device node successively, and it is adaptive to finish button.
This routine specific works flow process synoptic diagram as shown in Figure 1, compared with prior art, this example realizes that by creating the analogue-key actuation step button is adaptive, realize the separately respectively operation in the central processing unit of micro controller and X86 end of button collection and keystroke handling, hard button is connected to micro controller, the button that has reduced the x86 end is the complexity that realizes of knob particularly, and is convenient to button is carried out unified management; In addition, realize that at x86 end android kernel analogue-key drives, the driving of registration key-press event, generate the event device node, such as/dev/input/event0, in the event device node, write key-press event at the android middleware, the response time is below the 100ms, about using in compared to existing technology key response time that android input orders as 500ms, this example has improved 5 times corresponding speed; On this basis, this example realizes that also hard button starts the android Application Program Interface of non-launcher, receives key value by launcher, just can start corresponding Application Program Interface.
This example can realize concrete implementation process by following description:
(1) use analogue-key to drive, android user's space structure key-press event also is written in the kernel, processing power is strong, speed is fast, treatment scheme is as follows: create analogue-key and drive under android kernel source code/driver/input/keyboard/ catalogue, and registration will be processed the key scan code in analogue-key drives, guarantee simultaneously to contain key scan code to be processed in the key arrangement file qwerty.kl file of android, after drive load is complete, generate event device node/dev/input/event0, then open at the android middleware/the dev/input/event0 event node, structure button down/up event also is written to key-press event in this event node successively, it is adaptive to finish button, and the key response time of processing like this is very fast, can reach below the 100ms.
(2) write key-press event at the android middleware in/dev/input/event0, it is more flexible, easy to use that advantage is.
(3) use this kind method not need button hardware is connected to the X86 end, only need button hardware is connected to another CPU or MCU end, advantage is to be convenient to the button management, also reduces simultaneously the complexity that button is realized.
(4) adaptive for non-android key-press event, do not need key value is written in the input system of android, after the android middleware receives the key value that MCU sends, the AM order of use android is encapsulated as intent with key value and sends launcher to, then start corresponding function interface by launcher, realize that so hard button starts the android Application Program Interface outside the launcher, such as the switching between phone/function interfaces such as navigation/launcher/FM/Music/Movie/SOS/ICall/Web.
The key value that this implementation process detects micro controller sends to the central processing unit of x86 end, and it is adaptive to carry out button at middleware, button is adaptive classifies to key value after receiving key value, if start the hardware button of the Application Program Interface outside the launcher, send to launcher by android AM order, start corresponding Application Program Interface by launcher; If other hard button or knob, key value is configured to Android standard input down/up event, then be written to that analogue-key driving N G102 driver registration generates /dev/input/event0 in, android input system key process processes key-press event automatically, realizes based on the x86 end button of android adaptive.
The further improvement of this example is that described micro controller is for holding CPU or the MCU that works alone mutually with X86.Because micro controller is mainly used in button is detected, realize the collection of key value, therefore not high to the requirement of micro controller, can both realize that with CPU or MCU cost is low.
The further improvement of this example is that the non-standard button of android refers to the hard button that starts the outer Application Program Interface of launcher.Preferably, the hard button of the Application Program Interface outside the launcher comprises at least a button in phone, navigation, radio reception, music, video, emergency and the text message.This example is adaptive for non-android key-press event, do not need key value is written in the android input system, but after the android middleware receives the key value that micro controller sends, the AM order of use android is encapsulated as intent with key value and sends launcher to, then start corresponding function interface by launcher, can realize that so just hard button starts the android Application Program Interface outside the launcher, such as phone/navigation/launcher/FM/Music/Movie/SOS/ICall/Web function, the switching between the practical function interface.
Embodiment 2:
As shown in Figure 2, this example also provides a kind of x86 end button adaption system based on android, comprises the central processing unit of micro controller and X86 end, and described central processing unit and micro controller work alone respectively; Wherein, micro controller is used for realizing button is gathered, and obtains key value; Described central processing unit is used for realization to the processing of key value.Should based on the x86 end button adaption system of android, preferably adopt embodiment 1 described x86 end button adaptation method based on android.
Among Fig. 2, central processing unit can adopt E640T, and micro controller can adopt LPC1758, and the Linux2 kernel is preferably the Linux2.6.37 kernel, and Android operating system is preferably Android2.3.4 operating system.
The further improvement of this example is, after central processing unit received the key value that micro controller gathers, it was adaptive to carry out button by middleware; Button is adaptive to be sent to analogue-key after finishing and drives the drive load that carries out key-press event, is about to key value and writes analogue-key and drive in the corresponding key-press event; Be connected at last the realization of carrying out function in the input system.
Compared with prior art, this example realizes that by creating the analogue-key actuation step button is adaptive, realize the separately respectively operation in the central processing unit of micro controller and X86 end of button collection and keystroke handling, hard button is connected to micro controller, reduced the button of x86 end adaptive, the adaptive complexity of knob of particularly x86 being held, and be convenient to button is carried out unified management; And, realize that at x86 end android kernel analogue-key drives, the driving of registration key-press event, generate the event device node, such as/dev/input/event0, in the event device node, write key-press event at the android middleware, the response time is below the 100ms, about using in compared to existing technology key response time that android input orders as 500ms, this example has improved 5 times response speed; On this basis, this example realizes that also hard button starts the android Application Program Interface of non-launcher, receives key value by launcher, can start corresponding Application Program Interface.
Above content is the further description of the present invention being done in conjunction with concrete preferred implementation, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. the x86 end button adaptation method based on android is characterized in that, may further comprise the steps:
Create the analogue-key actuation step, under android kernel source code catalogue, create analogue-key and drive, drive in the user's space structure key-press event of android and be written in the android kernel by analogue-key;
The key-press event write step writes key-press event at the android middleware in the event device node;
The button acquisition step is connected to hard button and X86 end micro controller independently mutually, by micro controller button is collected key value; And,
Treatment step is judged the push-button type that micro controller sends over, if belong to the non-standard button of android, then the AM order by android encapsulates key value and broadcast, and broadcasting starts corresponding function interface after sending launcher to; If belong to the standard key of android, then key value is write analogue-key and drive in the corresponding key-press event, the input system of android is finished the corresponding function of key-press event after reading key-press event.
2. the x86 based on android according to claim 1 holds the button adaptation method, it is characterized in that described establishment analogue-key actuation step comprises:
Under android kernel source code catalogue, create analogue-key and drive, and in analogue-key drives registration key scan code to be processed, guarantee simultaneously to contain key scan code to be processed in the key arrangement file of android;
The loading simulation button drives, and generates the event device node;
Open the event device node at the android middleware; And,
The structure key-press event also is written to key-press event in this event device node successively, and it is adaptive to finish button.
3. the x86 end button adaptation method based on android according to claim 1 and 2 is characterized in that described micro controller is for holding CPU or the MCU that works alone mutually with X86.
4. the x86 end button adaptation method based on android according to claim 1 and 2 is characterized in that the non-standard button of android refers to the hard button that starts the outer Application Program Interface of launcher.
5. the x86 end button adaptation method based on android according to claim 4 is characterized in that the hard button of the Application Program Interface that launcher is outer comprises at least a button in phone, navigation, radio reception, music, video, emergency and the text message.
6. the x86 end button adaption system based on android is characterized in that comprise the central processing unit of micro controller and X86 end, described central processing unit and micro controller work alone respectively; Wherein, micro controller is used for realizing button is gathered, and obtains key value; Described central processing unit is used for realization to the processing of key value.
7. the x86 end button adaption system based on android according to claim 6 is characterized in that, has adopted the x86 end button adaptation method based on android as claimed in claim 1 or 2.
8. the x86 end button adaption system based on android according to claim 7 is characterized in that, after central processing unit received the key value that micro controller gathers, it was adaptive to carry out button by middleware; Button is adaptive to be sent to analogue-key after finishing and drives the drive load that carries out key-press event, is about to key value and writes analogue-key and drive in the corresponding key-press event; Be connected at last the realization of carrying out function in the input system.
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