CN102033770A - Touch screen firmware upgrading method and device for mobile terminal - Google Patents
Touch screen firmware upgrading method and device for mobile terminal Download PDFInfo
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- CN102033770A CN102033770A CN2010105945112A CN201010594511A CN102033770A CN 102033770 A CN102033770 A CN 102033770A CN 2010105945112 A CN2010105945112 A CN 2010105945112A CN 201010594511 A CN201010594511 A CN 201010594511A CN 102033770 A CN102033770 A CN 102033770A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
- G06F8/654—Updates using techniques specially adapted for alterable solid state memories, e.g. for EEPROM or flash memories
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72406—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by software upgrading or downloading
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector
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Abstract
The invention provides a touch screen firmware upgrading method and a touch screen firmware upgrading device for a mobile terminal. The method comprises the following steps of: reading firmware version information of a touch screen, which is stored in a user space of a system, into a kernel space of the system; and simulating an upgrade protocol to upgrade touch screen firmware according to the read firmware version information through a general purpose input/output (GPIO) port of the touch screen. In the invention, the upgrade protocol is simulated by multiplexing the GPIO ports of a serial clock pin (SCL) and a serial data pin (SDA) which are used for I2C communication on a hardware connector of the touch screen, so the automatic upgrading of the firmware of the touch screen can be carried out on the mobile terminal; therefore, the upgrading workload is reduced, the upgrading speed is high and the invention is convenient to use.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of touch-screen firmware upgrade method and device of portable terminal.
Background technology
Widespread usage along with smart mobile phone, touch-screen play more and more crucial effects, especially capacitance touch screen, long because of its, can point that tripe touches, advantage such as easy to use in life-span, to lead main touch-screen market in future, and might complete substitutional resistance touch-screen.But capacitance touch screen is as a kind of new things; technology is perfect not enough; firmware version upgrades through regular meeting; sometimes need to solve some bug (as linear drift, random count off according to, local malfunctioning etc.), compatibility issue; perhaps need manufacturer that the function of more renewals is provided, the firmware of this touch-screen that all needs to upgrade.
Prior art is by adopting special instrument that the touch-screen firmware is upgraded, there is following problem in this upgrading mode: if the touch-screen of portable terminal is after producing in batches, need firmware upgrade, then need the touch-screen of dismantling, upgrade with special instrument, like this, will workload greatly and easily with touch screen from being damaged.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of touch-screen firmware upgrade method and device of portable terminal, to solve the big and easy problem with touch screen from being damaged of above-mentioned touch-screen firmware upgrade workload at least.
According to an aspect of the present invention, provide a kind of touch-screen firmware upgrade method of portable terminal, having comprised: the firmware version information that will be kept at the touch-screen in the user's space of system is read into the kernel spacing of system; According to the firmware version information that is read in, simulate updating protocol and carry out the touch-screen firmware upgrade by GPIO (General Purpose I/O, the general I/O) port of touch-screen.
Further, the firmware version information that is kept at the touch-screen in the user's space of system is read into the kernel spacing of system, comprises: the firmware version information that the proc interface in driving by kernel will be kept in the file system of user's space is read in the buffer memory of kernel spacing.
Further, the GPIO port is to be used for I2C (Inter Integrated Circuit on the hardware connector of touch-screen, internal integrated circuit) Tong Xin clock pin SCL (I2C Serial Clock, serial clock) and data pins SDA (I2C Serial Data, serial data).
Further, according to the firmware version information that is read in, general input GPIO by touch-screen simulates updating protocol and carries out comprising: close touch-screen and be used for the I2C communication interruption, and SCL is become common GPIO pin with the SDA pin configuration before the touch-screen firmware upgrade.
Further, according to the firmware version information that is read in, general input GPIO by touch-screen simulates updating protocol and carries out the touch-screen firmware upgrade, comprising: make the touch-screen chip of needs upgrading be in upgrade mode, and check whether the touch-screen chip id satisfies the upgrading requirement; If then original firmware version information in the touch-screen chip is wiped; In the burned touch-screen chip of firmware version information that reads in the kernel spacing.
Further, after in the burned touch-screen chip of firmware version information that reads in the kernel spacing, also comprise: the verification of the firmware version information in the burned touch-screen chip of verification and whether correct, if upgrading then is set successfully indicates.
Further, make the touch-screen chip that need upgrade be in upgrade mode, and check whether the touch-screen chip id satisfies before the upgrading requirement, and comprising: one of initialization is used to guarantee the not interrupted lock of escalation process, and the protection of unlatching lock.
According to a further aspect in the invention, provide a kind of touch-screen device for upgrading firmware of portable terminal, having comprised: read in module, the firmware version information of touch-screen that is used for being kept at the user's space of system is read into the kernel spacing of system; The upgrading module is used for according to the firmware version information that is read in, and the general input GPIO by touch-screen simulates updating protocol and carries out the touch-screen firmware upgrade.
Further, the upgrading module comprises: check submodule, be used to make the touch-screen chip of needs upgrading to be in upgrade mode, and check whether the touch-screen chip id satisfies the upgrading requirement; Wipe submodule, be used for the original firmware version information of touch-screen chip is wiped; Burned submodule is used in the burned touch-screen chip of the firmware version information that reads in kernel spacing.
Further, the upgrading module also comprises: the syndrome module is used for the verification of firmware version information of the burned touch-screen chip of verification and whether correct, if upgrading then is set successfully indicates.
In the present invention, the clock pin SCL of the hardware connector by multiplexing touch-screen and the GPIO port of data pins SDA are simulated updating protocol, make the auto-update that can realize the touch-screen firmware on portable terminal, thus minimizing upgrade job amount, updating speed is fast, and is easy to use.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the touch-screen firmware upgrade method process flow diagram according to the embodiment of the invention;
Fig. 2 is the touch-screen device for upgrading firmware block diagram according to the embodiment of the invention;
Fig. 3 is the touch-screen device for upgrading firmware modular structure figure according to the embodiment of the invention;
Fig. 4 is the touch-screen firmware upgrade synoptic diagram according to the embodiment of the invention; And
Fig. 5 is the touch-screen firmware upgrade process flow diagram according to the embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Fig. 1 is the touch-screen firmware upgrade method process flow diagram according to the embodiment of the invention, as shown in Figure 1, may further comprise the steps:
Step S102 is read into the firmware version information that is kept at the touch-screen in the user's space of system the kernel spacing of system;
Step S104, according to the firmware version information that is read in, the clock pin SCL of the hardware connector by multiplexing touch-screen and the GPIO port of data pins SDA are simulated updating protocol.
In the present embodiment, the clock pin SCL of the hardware connector by multiplexing touch-screen and the GPIO mouth of data pins SDA are simulated updating protocol, make the auto-update that can realize the touch-screen firmware on portable terminal, thus minimizing upgrade job amount, updating speed is fast, and is easy to use.
Wherein, in step S102, the firmware version of touch-screen is placed in the file system of user's space, is by the proc interface firmware version information to be read in the kernel spacing.If do not need the switching on and shutting down touch-screen just can normally use after the touch-screen firmware upgrade is finished, the driving of touch-screen just can not unload when then upgrading.In said method, realize upgrading by adopting the proc interface in the kernel, the proc interface is placed in the driving of touch-screen, promptly realizes the upgrading of touch-screen firmware in kernel drives, upgrade like this finish after just again the switching on and shutting down touch-screen can normally use.
General capacitance touch screen all is I2C communication, and the interface of the hardware connector of touch-screen generally has five GPIO pins, is respectively: GND (ground connection), SCL (clock), SDA (data), VDD (supply voltage) and INT (interruption) pin.Firmware upgrade among the step S104 is mainly simulated updating protocol by SCL and two gpio mouths of SDA and is realized.
I2C when communication data pins SDA and clock pin SCL need pull-up resistor on hardware, and touch-screen is when being in the firmware upgrade pattern, and these two pins need pull down resistor.Can realize by following way in the present embodiment: the clock pin becomes low level from high level and realizes once sampling to the data pin, data pins is changed into the output low mode by input pattern, and time-delay a period of time, when detecting data pins when low, the touch-screen chip enters upgrade mode, again data pins is changed into input pattern by the output low mode, thereby solve the problem that needs pull down resistor.
Wherein, before step S104 adopts SCL and two gpio mouths of SDA to simulate updating protocol, should close touch-screen earlier interrupts, the interruption that guarantees touch-screen is temporarily inoperative, if touch-screen interrupts working, the I2C communication can be carried out, two gpio pins of SCL and SDA will be used, thus the carrying out of influence upgrading; Two gpio mouths of multiplexing then I2C communication are configured to two common gpio pins, and these two pins temporarily just can not carry out the I2C communication like this.
Wherein, the escalation process of step S104 mainly comprises:
Locking protection guarantees that escalation process is not interrupted, and lock mechanism is the stationary problem that is faced when solving the same file of the concurrent visit of a plurality of processes.
Whether check firmware, make the touch-screen chip be in upgrade mode, checking needs the chip id of upgrading to meet the demands, to meet the demands and just can upgrade.
Wipe flash, original touch-screen firmware version is wiped.
Programming flash advances flash to the new firmware version programming of reading in from user's space.
Verification, the verification of the firmware version of the new programming of verification and whether correct, correctly then expression is upgraded successfully.Upgrading is set successfully indicates, the person is not provided with the upgrading failure flags.If the upgrading failure, upgrading can be carried out again, three times so repeatedly.
After upgrading successfully, separate the protection of unblanking.
Fig. 2 is the touch-screen device for upgrading firmware block diagram according to the embodiment of the invention, as shown in Figure 2, comprises and reads in module 10 and upgrading module 20.Wherein, read in module 10, the firmware version information of touch-screen that is used for being kept at the user's space of system is read into the kernel spacing of system; Upgrading module 20 is used for according to the firmware version information that is read in, and the general input GPIO by touch-screen simulates updating protocol and carries out the touch-screen firmware upgrade.
In the present embodiment, the clock pin SCL of the hardware connector by multiplexing touch-screen and the GPIO port of data pins SDA are simulated updating protocol, make the auto-update that can realize the touch-screen firmware on portable terminal, thus minimizing upgrade job amount, updating speed is fast, and is easy to use.
In said apparatus, as shown in Figure 3, upgrading module 20 comprises inspection submodule 202, wipes submodule 204 burned submodule 206 and syndrome modules 208.Wherein, check submodule 202, be used to make the touch-screen chip of needs upgrading to be in upgrade mode, and check whether the touch-screen chip id satisfies the upgrading requirement.Wipe submodule 204, be used for the original firmware version information of touch-screen chip is wiped.Burned submodule 206 is used in the burned touch-screen chip of the firmware version information that reads in kernel spacing.Syndrome module 208 is used for the verification of firmware version information of the burned touch-screen chip of verification and whether correct, if upgrading then is set successfully indicates.
Fig. 4 is the touch-screen firmware upgrade synoptic diagram according to the embodiment of the invention, as shown in Figure 4, linux system is divided into user's space and kernel spacing two parts, the kernel software of kernel spacing is independent of common applications, operate on the higher privilege level, they reside on the protected memory headroom, have all authorities of access hardware devices; Relative, application program then operates in user's space, the application program that operates in user's space can only be seen the part system resource that allows them to use, and can not use some specific systemic-function, directly access kernel space and hardware device, and some other concrete use restriction.User's space and kernel spacing placed under this asymmetric access mechanism good security, can effectively resist spying upon of malicious user, also can prevent the infringement of bum user program, thereby make system move more reliable and more stablely.
In the present embodiment, the touch-screen firmware version is placed in the file system of user's space, ROMPaq is placed in the touch-screen driver of kernel spacing, being undertaken by the proc interface alternately of user's space and kernel spacing.
The firmware version of touch-screen is placed in the file system of user's space, by the proc interface firmware version information is read in the kernel spacing, user's space is sent out the upgrading order, and the proc interface is received the upgrading order, the upgrading beginning.
In the present embodiment, mainly comprise line module, kernel driver module and upgrading module.
Line module is used for preserving new touch-screen firmware, and transmission upgrading order checks whether upgrading is successful, if failure resending the upgrading order.
The upgrading module mainly is the module of carrying out according to updating protocol, mainly realizes following function: (1) checks firmware, makes the touch-screen chip be in upgrade mode, and whether check needs the chip id of upgrading to meet the demands, to meet the demands and just can upgrade.(2) wipe flash, original touch-screen firmware version is wiped.(3) programming flash advances flash to the new firmware version programming of reading in from user's space.(4) verification, the verification of the firmware version of the new programming of verification and whether correct, correctly then expression is upgraded successfully.Upgrading is set successfully indicates, the person is not provided with the upgrading failure flags.If the upgrading failure, upgrading can be carried out again, three times so repeatedly.
The kernel driver module mainly is the driving of touch-screen, driving the inside interpolation proc interface, realizes the upgrade job of touch-screen in proc interface the inside.The Proc interface mainly is the work that guarantees three aspects:
(1) two gpio mouths of the SCL of multiplexing touch-screen connector and SDA make its work that suspends I2C communication, according to the updating protocol work of common gpio simulate firmware.
(2) the upgrading module is upgraded according to touch-screen firmware upgrade agreement.
(3) do not need the switching on and shutting down touch-screen normally to use after the touch-screen firmware upgrade is finished.Close touch-screen before the upgrading and interrupt, suspend the communication work of I2C, I2C communication is recovered in the upgrading back, opens interruption, and touch-screen normally uses.
Line module and kernel driver module are two big modules, and the proc interface is placed in the kernel driver module, is the passage of contact user module and kernel driver module, and the proc interface is realized the communication between line module and the kernel driver module.Simultaneously, the upgrading module is positioned at proc interface inside, when the proc interface is received the upgrading order of line module transmission, just allows the upgrading module begin real firmware upgrade.
Fig. 5 is the touch-screen firmware upgrade process flow diagram according to the embodiment of the invention, as shown in Figure 5, may further comprise the steps:
Step S502, user send the upgrading order, the upgrading beginning.
Step S504 does some preliminary works of upgrading, closes and interrupts, and the SCL of multiplexing I2C and SDA pin are simulated updating protocol.
Step S506, new lock of initialization is opened the lock protection, guarantees that escalation process is not interrupted.
Step S508 is read into kernel spacing to the up-to-date touch-screen firmware version of user's space by the proc interface, is stored among the local buff, is used for upgrading and uses.
Step S510 checks hardware information, makes the touch-screen chip be in upgrade mode, and checks whether chip id satisfies the upgrading requirement.
Step S512 wipes flash, and original firmware erasing is fallen;
Step S514, programming flash writes flash to the up-to-date firmware that is stored among the local buff;
Step S516, verification is calculated the verification of the information that reads from flash and with the verification and the comparison that are kept at the firmware information the buff, if the same then upgrade successfully, upgrading be set successfully indicate; If failure is provided with the upgrading failure flags, the user resends the upgrading order, and upgrading restarts.
Step S518 closes the locking protection, nullifies lock.
Step S520, the touch-screen power down powers on, and is not that the power down of portable terminal powers on, and recovers the gpio mouth configuration of SCL and the SDA of I2C, enables the I2C communication, opens interruption, guarantees that touch-screen can normally use.So far, whole upgrade process has just been finished.
In the above embodiment of the present invention, can arrive up-to-date version to the firmware upgrade of touch-screen at any time by portable terminal capacitance touch screen automatically upgrading firmware, thereby solve the problem such as bug, compatibility, insufficiency of original firmware version, and escalation process does not rely on special upgrading tool, escalation process speed is fast, good reliability, the convenient use; In addition, the touch-screen firmware version is placed in the software version of portable terminal, can be accompanied by the renewal of mobile terminal software edition and upgrades version; If the upgrading failure, upgrading capable of circulation, thus better guarantee the success of capacitance touch screen firmware updating.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the memory storage and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the touch-screen firmware upgrade method of a portable terminal is characterized in that, comprising:
The kernel spacing that touch-screen firmware version information in the user's space of system is read into described system will be kept at;
According to the firmware version information that is read in, the general input GPIO by touch-screen simulates updating protocol and carries out the touch-screen firmware upgrade.
2. method according to claim 1 is characterized in that, will be kept at the kernel spacing that touch-screen firmware version information in the user's space of system is read into described system, comprising:
The described firmware version information that proc interface in driving by kernel will be kept in the file system of user's space is read in the buffer memory of kernel spacing.
3. method according to claim 1 is characterized in that, is used for the clock pin SCL and the data pins SDA of I2C communication on the hardware connector that described GPIO port is a touch-screen.
4. method according to claim 3 is characterized in that, according to the firmware version information that is read in, the general input GPIO by touch-screen simulates updating protocol and carries out comprising before the touch-screen firmware upgrade:
Close described touch-screen and be used for the I2C communication interruption, and described SCL is become common GPIO pin with the SDA pin configuration.
5. method according to claim 1 is characterized in that, according to the firmware version information that is read in, the general input GPIO by touch-screen simulates updating protocol and carries out the touch-screen firmware upgrade, comprising:
Making needs the touch-screen chip of upgrading to be in upgrade mode, and checks whether described touch-screen chip id satisfies the upgrading requirement;
If then original firmware version information in the described touch-screen chip is wiped;
In the burned described touch-screen chip of described firmware version information that reads in the kernel spacing.
6. method according to claim 5 is characterized in that, after in the burned described touch-screen chip of described firmware version information that reads in the kernel spacing, also comprises:
The verification of the firmware version information in the burned described touch-screen chip of verification and whether correct is if then be provided with upgrading and successfully indicate.
7. method according to claim 6 is characterized in that, making needs the touch-screen chip of upgrading to be in upgrade mode, and checks that whether described touch-screen chip id satisfies before the upgrading requirement, comprising:
One of initialization is used to guarantee the not interrupted lock of escalation process, and opens the lock protection.
8. the touch-screen device for upgrading firmware of a portable terminal is characterized in that, comprising:
Read in module, the touch-screen firmware version information that is used for being kept at the user's space of system is read into the kernel spacing of described system;
The upgrading module is used for according to the firmware version information that is read in, and the general input GPIO by touch-screen simulates updating protocol and carries out the touch-screen firmware upgrade.
9. device according to claim 8 is characterized in that, described upgrading module comprises:
Check submodule, be used to make the touch-screen chip of needs upgrading to be in upgrade mode, and check whether described touch-screen chip id satisfies the upgrading requirement;
Wipe submodule, be used for the original firmware version information of described touch-screen chip is wiped;
Burned submodule is used in the burned described touch-screen chip of the described firmware version information that reads in kernel spacing.
10. device according to claim 9 is characterized in that, described upgrading module also comprises:
The syndrome module is used for the verification of firmware version information of the burned described touch-screen chip of verification and whether correct, if upgrading then is set successfully indicates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010594511.2A CN102033770B (en) | 2010-12-17 | 2010-12-17 | Touch screen firmware upgrading method and device for mobile terminal |
| PCT/CN2011/070973 WO2012079301A1 (en) | 2010-12-17 | 2011-02-14 | Method and device for upgrading touch screen firmware of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010594511.2A CN102033770B (en) | 2010-12-17 | 2010-12-17 | Touch screen firmware upgrading method and device for mobile terminal |
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| CN102033770A true CN102033770A (en) | 2011-04-27 |
| CN102033770B CN102033770B (en) | 2015-01-28 |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2012079301A1 (en) | 2012-06-21 |
| CN102033770B (en) | 2015-01-28 |
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