CN102033770B - 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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- CN102033770B CN102033770B CN201010594511.2A CN201010594511A CN102033770B CN 102033770 B CN102033770 B CN 102033770B CN 201010594511 A CN201010594511 A CN 201010594511A CN 102033770 B CN102033770 B CN 102033770B
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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
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 mobile terminal.
Background technology
Along with the generally application of smart mobile phone, touch-screen plays more and more vital effect, especially capacitance touch screen, because its life-span is long, can point that tripe touches, the advantage such as easy to use, to main touch-screen market be led in future, and likely complete substitutional resistance touch-screen.But capacitance touch screen is as a kind of new things; technology is perfect not enough; firmware version often can upgrade; sometimes need to solve some bug (as linear drift, random count off are malfunctioning etc. according to, local), compatibility issue; or need manufacturer to provide the function of more renewals, this all needs the firmware of upgrading touch-screen.
Prior art is by adopting special instrument to upgrade to touch-screen firmware, there is following problem in this upgrading mode: if the touch-screen of mobile terminal is after producing in batches, need firmware upgrade, then need touch-screen of dismantling, upgrade with special instrument, like this, will workload greatly and easily by touch screen from being damaged.
Summary of the invention
Fundamental purpose of the present invention is the touch-screen firmware upgrade method and the device that provide a kind of mobile terminal, large and easy by the problem of touch screen from being damaged at least to solve above-mentioned touch-screen firmware upgrade workload.
According to an aspect of the present invention, provide a kind of touch-screen firmware upgrade method of mobile terminal, comprising: the kernel spacing firmware version information of the touch-screen be kept in the user's space of system being read into system; According to read in firmware version information, simulate updating protocol carry out touch-screen firmware upgrade by GPIO (General Purpose I/O, the universal input/output) port of touch-screen.
Further, the firmware version information of the touch-screen be kept in the user's space of system is read into the kernel spacing of system, comprises: by the proc interface in kernel-driven, the firmware version information be kept in the file system of user's space is read in the buffer memory of kernel spacing.
Further, GPIO port be touch-screen hardware connector on for I2C (Inter Integrated Circuit, internal integrated circuit) clock pins SCL (the I2C Serial Clock that communicates, serial clock) and data pins SDA (I2C Serial Data, serial data).
Further, according to read in firmware version information, simulate before updating protocol carries out touch-screen firmware upgrade by the general input/output port GPIO of touch-screen, comprising: close the interruption that touch-screen is used for I2C communication, and SCL with SDA pin configuration is become common GPIO pin.
Further, according to read in firmware version information, simulate updating protocol by the general input/output port GPIO of touch-screen and carry out touch-screen firmware upgrade, comprising: the touch-screen chip that needs are upgraded is in upgrade mode, and check whether touch-screen chip id meets upgrading requirement; If so, then by firmware version information erasing original in touch-screen chip; By in the burned touch-screen chip of firmware version information that reads in kernel spacing.
Further, after in the burned touch-screen chip of firmware version information that reads in kernel spacing, also comprise: whether the School Affairs verifying the firmware version information in burned touch-screen chip is correct, if so, then arrange and upgrade successfully mark.
Further, the touch-screen chip that needs are upgraded is in upgrade mode, and before checking whether touch-screen chip id meets upgrading requirement, comprising: initialization one is for ensureing the not interrupted lock of escalation process, and opened lock protection.
According to a further aspect in the invention, provide a kind of touch-screen device for upgrading firmware of mobile terminal, comprising: read in module, for the firmware version information of the touch-screen be kept in the user's space of system being read into the kernel spacing of system; Upgraded module, for according to read in firmware version information, simulates updating protocol by the general input/output port GPIO of touch-screen and carries out touch-screen firmware upgrade.
Further, upgraded module comprises: check submodule, the touch-screen chip of upgrading for making needs is in upgrade mode, and checks whether touch-screen chip id meets upgrading requirement; Erasing submodule, for wiping firmware version information original in touch-screen chip; Burned submodule, in the burned touch-screen chip of the firmware version information for reading in kernel spacing.
Whether further, upgraded module also comprises: syndrome module, correct for the School Affairs verifying the firmware version information in burned touch-screen chip, if so, then arranges and upgrades successfully mark.
In the present invention, simulate updating protocol by the clock pins SCL of the hardware connector of multiplexing touch-screen and the GPIO port of data pins SDA, make it possible to the auto-update realizing touch-screen firmware on mobile terminals, thus reduce upgrade job amount, updating speed is fast, easy to use.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation 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 present invention;
Fig. 2 is the touch-screen device for upgrading firmware block diagram according to the embodiment of the present invention;
Fig. 3 is the touch-screen device for upgrading firmware function structure chart according to the embodiment of the present invention;
Fig. 4 is the touch-screen firmware upgrade schematic diagram according to the embodiment of the present invention; And
Fig. 5 is the touch-screen firmware upgrade process flow diagram according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 1 is the touch-screen firmware upgrade method process flow diagram according to the embodiment of the present invention, as shown in Figure 1, comprises the following steps:
Step S102, is read into the kernel spacing of system by the firmware version information of the touch-screen be kept in the user's space of system;
Step S104, according to read in firmware version information, simulates updating protocol by the clock pins SCL of the hardware connector of multiplexing touch-screen and the GPIO port of data pins SDA.
In the present embodiment, simulate updating protocol by the clock pins SCL of the hardware connector of multiplexing touch-screen and the GPIO mouth of data pins SDA, make it possible to the auto-update realizing touch-screen firmware on mobile terminals, thus reduce upgrade job amount, updating speed is fast, easy to use.
Wherein, in step s 102, the firmware version of touch-screen is placed in the file system of user's space, is by proc interface, firmware version information is read in kernel spacing.If do not need switching on and shutting down touch-screen just can normally use after making touch-screen firmware upgrade complete, then during upgrading, the driving of touch-screen just can not unload.In the above-mentioned methods, by adopting the proc interface in kernel to realize upgrading, proc interface is placed in the driving of touch-screen, in kernel-driven, namely realize the upgrading of touch-screen firmware, just need not again can normally use by switching on and shutting down touch-screen after having upgraded like this.
General capacitance touch screen is all I2C communication, 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 in step S104 mainly by SCL and SDA two gpio mouths simulate updating protocol realize.
On hardware, during I2C communication, data pins SDA and clock pins SCL needs pull-up resistor, and when touch-screen is in firmware upgrade pattern, these two pins need pull down resistor.Realize by following way in the present embodiment: clock pins becomes low level from high level and realizes once to the sampling of data pins, data pins is changed into output low mode by input pattern, and time delay a period of time, when detecting that data pins is low, touch-screen chip enters upgrade mode, again data pins is changed into input pattern by exporting low mode, thus solve the problem needing pull down resistor.
Wherein, before step S104 adopts SCL and SDA two gpio mouths to simulate updating protocol, first should close touch-screen to interrupt, ensure that the interruption of touch-screen is temporarily inoperative, if touch-screen interrupts working, can I2C communication be carried out, SCL and SDA two gpio pins will be used, thus the carrying out of impact upgrading; Then two gpio mouths of multiplexing I2C communication, be configured to two common gpio pins, these two pins temporarily would not carry out I2C communication like this.
Wherein, the escalation process of step S104 mainly comprises:
Locking protection, ensure that escalation process is not interrupted, lock mechanism is used to the stationary problem faced when solving multiple process Concurrency Access same file.
Check firmware, make touch-screen chip be in upgrade mode, check and need the chip id of upgrading whether to meet the demands, meet the demands and just can upgrade.
Wipe flash, original touch-screen firmware version is wiped.
Programming flash, enters flash the new firmware version programming of reading in from user's space.
Verification, whether the School Affairs verifying the firmware version of new programming is correct, correctly then represents and upgrades successfully.Setting upgrades successfully mark, and no person arranges upgrading failure flags.If upgrade unsuccessfully, upgrading can re-start, three times so repeatedly.
After upgrading successfully, solution unblanks to protect.
Fig. 2 is the touch-screen device for upgrading firmware block diagram according to the embodiment of the present invention, as shown in Figure 2, comprises and reads in module 10 and upgraded module 20.Wherein, read in module 10, for the firmware version information of the touch-screen be kept in the user's space of system being read into the kernel spacing of system; Upgraded module 20, for according to read in firmware version information, simulates updating protocol by the general input/output port GPIO of touch-screen and carries out touch-screen firmware upgrade.
In the present embodiment, simulate updating protocol by the clock pins SCL of the hardware connector of multiplexing touch-screen and the GPIO port of data pins SDA, make it possible to the auto-update realizing touch-screen firmware on mobile terminals, thus reduce upgrade job amount, updating speed is fast, easy to use.
In said apparatus, as shown in Figure 3, upgraded module 20 comprises inspection submodule 202, the erasing burned submodule 206 of submodule 204 and syndrome module 208.Wherein, check submodule 202, the touch-screen chip of upgrading for making needs is in upgrade mode, and checks whether touch-screen chip id meets upgrading requirement.Erasing submodule 204, for wiping firmware version information original in touch-screen chip.Burned submodule 206, in the burned touch-screen chip of the firmware version information for reading in kernel spacing.Syndrome module 208, whether correct for the School Affairs verifying the firmware version information in burned touch-screen chip, if so, then arrange and upgrade successfully mark.
Fig. 4 is the touch-screen firmware upgrade schematic diagram according to the embodiment of the present 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 higher privilege level, they reside on protected memory headroom, have all authorities of access hardware devices; Relative, application program then operates in user's space, the application program operating in user's space can only see the part system resource allowing them to use, and some specific systemic-function can not be used, can not directly access kernel space and hardware device, and some other use restriction specifically.There is good security under user's space and kernel spacing being placed in this asymmetric access mechanism, effectively can resist the pry of malicious user, also can prevent the infringement of bum user program, thus it is more reliable and more stable that system cloud gray model is obtained.
In the present embodiment, 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, and user's space and the mutual of kernel spacing are undertaken by proc interface.
The firmware version of touch-screen is placed in the file system of user's space, and by proc interface, firmware version information is read in kernel spacing, user's space sends out upgrade command, and proc interface receives upgrade command, and upgrading starts.
In the present embodiment, line module, kernel-driven module and upgraded module is mainly comprised.
Line module is used for preserving new touch-screen firmware, sends upgrade command, checks that whether upgrading is successful, if unsuccessfully resend upgrade command.
Whether upgraded module, mainly according to the module that updating protocol performs, mainly realizes following functions: (1) checks firmware, makes touch-screen chip be in upgrade mode, check and need the chip id of upgrading to meet the demands, meet the demands and just can upgrade.(2) wipe flash, original touch-screen firmware version is wiped.(3) programming flash, enters flash the new firmware version programming of reading in from user's space.(4) verify, whether the School Affairs verifying the firmware version of new programming is correct, correctly then represents and upgrades successfully.Setting upgrades successfully mark, and no person arranges upgrading failure flags.If upgrade unsuccessfully, upgrading can re-start, three times so repeatedly.
Kernel-driven module, the mainly driving of touch-screen, add proc interface in driving the inside, realize the upgrade job of touch-screen inside proc interface.Proc interface mainly ensures the work of three aspects:
(1) SCL and SDA two gpio mouths of multiplexing touch-screen connector, make it suspend the work of I2C communication, according to the updating protocol work of common gpio simulate firmware.
(2) upgraded module, upgrades according to touch-screen firmware upgrade agreement.
(3) touch-screen firmware upgrade does not need switching on and shutting down touch-screen normally to use after completing.Close touch-screen before upgrading to interrupt, suspend the communication work of I2C, recover I2C communication after upgrading, open interruption, touch-screen normally uses.
Line module and kernel-driven module are two large modules, and proc interface is placed in kernel-driven module, is the passage of contact user module and kernel-driven module, the communication between proc Interface realization line module and kernel-driven module.Meanwhile, upgraded module is positioned at proc interface internal, when proc interface receives the upgrade command of line module transmission, just allows upgraded module start real firmware upgrade.
Fig. 5 is the touch-screen firmware upgrade process flow diagram according to the embodiment of the present invention, as shown in Figure 5, comprises the following steps:
Step S502, user sends upgrade command, and upgrading starts.
Step S504, does some preliminary works of upgrading, and close and interrupt, SCL and the SDA pin of multiplexing I2C simulates updating protocol.
Step S506, the lock that initialization one is new, opened lock is protected, and ensures that escalation process is not interrupted.
Step S508, is read into kernel spacing by proc interface the up-to-date touch-screen firmware version of user's space, is stored in local buff, for use of upgrading.
Step S510, checks hardware information, makes touch-screen chip be in upgrade mode, and checks whether chip id meets upgrading requirement.
Step S512, wipes flash, original firmware erasing is fallen;
Step S514, programming flash, the up-to-date firmware write flash be stored in local buff;
Step S516, verification, the School Affairs calculating the information read from flash compares with the School Affairs of the firmware information be kept at buff, if the same, upgrades successfully, and arranges and upgrades successfully mark; If failure, arrange upgrading failure flags, user resends upgrade command, and upgrading restarts.
Step S518, closes latch-up protection, nullifies lock.
Step S520, touch-screen power down powers on, and is not that the power down of mobile terminal powers on, and recover the gpio mouth configuration of SCL and SDA of I2C, enable I2C communication, opens interruption, ensures that touch-screen can normally use.So far, whole escalation process just completes.
In the above embodiment of the present invention, by mobile terminal capacitance touch screen automatically upgrading firmware can at any time the firmware upgrade of touch-screen to up-to-date version, thus 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, reliability is strong, easy to use; In addition, touch-screen firmware version is placed in the software version of mobile terminal, can upgrade version along with the renewal of mobile terminal software edition; If upgrade unsuccessfully, upgrading capable of circulation, thus better ensure the success of capacitance touch screen firmware updating.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a touch-screen firmware upgrade method for mobile terminal, is characterized in that, comprising:
The touch-screen firmware version information be kept in the user's space of system is read into the kernel spacing of described system;
According to read in firmware version information, simulate updating protocol by the general input/output port GPIO of touch-screen and carry out touch-screen firmware upgrade, wherein, described general input/output port GPIO be touch-screen hardware connector on for I2C communication clock pins SCL and data pins SDA;
Wherein, simulate before updating protocol carries out touch-screen firmware upgrade by the general input/output port GPIO of touch-screen, comprising:
Close the interruption that described touch-screen communicates for I2C, and described clock pins SCL and described data pins SDA is configured to common GPIO pin;
Wherein, realize the pull down resistor that clock pins SCL and data pins SDA is required in simulation updating protocol process in the following way: clock pins SCL becomes low level from high level and realizes once to the sampling of data pins SDA, data pins SDA is changed into output low mode by input pattern, and time delay a period of time, when detecting that data pins SDA is low, touch-screen chip enters upgrade mode, then changes data pins SDA into input pattern by exporting low mode.
2. method according to claim 1, is characterized in that, the touch-screen firmware version information be kept in the user's space of system is read into the kernel spacing of described system, comprises:
By the proc interface in kernel-driven, the described firmware version information 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, according to read in firmware version information, simulates updating protocol and carries out touch-screen firmware upgrade, comprising by the general input/output port GPIO of touch-screen:
The touch-screen chip that needs are upgraded is in upgrade mode, and checks whether described touch-screen chip id meets upgrading requirement;
If so, then by firmware version information erasing original in described touch-screen chip;
By in the burned described touch-screen chip of described firmware version information that reads in kernel spacing.
4. method according to claim 3, is characterized in that, after in the burned described touch-screen chip of described firmware version information that reads in kernel spacing, also comprises:
Whether the School Affairs verifying the firmware version information in burned described touch-screen chip is correct, if so, then arranges and upgrades successfully mark.
5. method according to claim 4, is characterized in that, the touch-screen chip that needs are upgraded is in upgrade mode, and before checking whether described touch-screen chip id meets upgrading requirement, comprising:
Initialization one is for ensureing the not interrupted lock of escalation process, and opened lock protection.
6. a touch-screen device for upgrading firmware for mobile terminal, is characterized in that, comprising:
Read in module, for the touch-screen firmware version information be kept in the user's space of system being read into the kernel spacing of described system;
Upgraded module, for according to read in firmware version information, simulate updating protocol by the general input/output port GPIO of touch-screen and carry out touch-screen firmware upgrade, wherein, described general input/output port GPIO be touch-screen hardware connector on for I2C communication clock pins SCL and data pins SDA, simulate before updating protocol carries out touch-screen firmware upgrade at the general input/output port GPIO by touch-screen, close the interruption that described touch-screen communicates for I2C, and described clock pins SCL is become common GPIO pin with data pins SDA pin configuration,
Wherein, described upgraded module realizes clock pins SCL and data pins SDA pull down resistor required in simulation updating protocol process in the following way: clock pins SCL becomes low level from high level and realizes once to the sampling of data pins SDA, data pins SDA is changed into output low mode by input pattern, and time delay a period of time, when detecting that data pins SDA is low, touch-screen chip enters upgrade mode, then changes data pins SDA into input pattern by exporting low mode.
7. device according to claim 6, is characterized in that, described upgraded module comprises:
Check submodule, the touch-screen chip of upgrading for making needs is in upgrade mode, and checks whether described touch-screen chip id meets upgrading requirement;
Erasing submodule, for wiping firmware version information original in described touch-screen chip;
Burned submodule, in the burned described touch-screen chip of the described firmware version information for reading in kernel spacing.
8. device according to claim 7, is characterized in that, described upgraded module also comprises:
Syndrome module, whether correct for the School Affairs verifying the firmware version information in burned described touch-screen chip, if so, then arrange and upgrade successfully mark.
Priority Applications (2)
| 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 |
|---|---|---|---|
| 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 CN102033770A (en) | 2011-04-27 |
| CN102033770B true CN102033770B (en) | 2015-01-28 |
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| WO (1) | WO2012079301A1 (en) |
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2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6904457B2 (en) * | 2001-01-05 | 2005-06-07 | International Business Machines Corporation | Automatic firmware update of processor nodes |
| CN101046789A (en) * | 2006-03-27 | 2007-10-03 | 飞博创（成都）科技有限公司 | Data transmission method, firmware updating method and bus loader |
| CN101452689A (en) * | 2007-12-04 | 2009-06-10 | 佳世达科技股份有限公司 | Firmware updating system for updating display firmware and method thereof |
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| Publication number | Publication date |
|---|---|
| WO2012079301A1 (en) | 2012-06-21 |
| CN102033770A (en) | 2011-04-27 |
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