CN101923479B - Mobile terminal and method for controlling screen display when starting terminal - Google Patents
Mobile terminal and method for controlling screen display when starting terminal Download PDFInfo
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- CN101923479B CN101923479B CN201010277611.2A CN201010277611A CN101923479B CN 101923479 B CN101923479 B CN 101923479B CN 201010277611 A CN201010277611 A CN 201010277611A CN 101923479 B CN101923479 B CN 101923479B
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Abstract
The invention relates to the field of mobile communication and discloses a mobile terminal and a method for controlling screen display when starting the terminal. The method of the invention can display a static frame in a Bootloader starting stage of the terminal starting and display a cartoon in a core starting stage. The method comprises the steps of: initializing a liquid crystal display LCD when a guiding process is started, distributing the local video memories in an internal memory, creating a DMA channel between the LCD and the local video memory, copying the to-be-displayed data to the local video memory, sending the data to the LCD through the DMA channel, and controlling the LCD to display the to-be-displayed data according the preset control parameters.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to method and the mobile terminal of a kind of terminal startup control screen display processed.
Background technology
The start-up course of smart mobile phone is generally divided into: Bootloader (Bootloader) starts, kernel starts and application program launching.Wherein, main initialization basic hardware unloading phase of Bootloader, object is that smart mobile phone can be started, the initialization unloading phase of Bootloader mainly comprises initializes memory, serial ports and starts frequency, it is mainly to start the operating system and loading application programs (arrange comprising LCD initialization etc.) that kernel starts, after kernel starts, executive utility starts again, just can playing animation after application program starts to start and some application operatings of carrying out other.
In existing smart mobile phone, in common linux system or Android system start-up course, the unloading phase of Bootloader, screen is blank screen always, in kernel start-up course, LCD (LCDs) screen can be initialised, also can work, but in kernel start-up course, the initial content showing in screen can not change again, in the whole process starting at kernel, mobile phone screen can only show static word or a static image conventionally, for example " android " word or " linux baby penguins " image etc.
But because the system of current smart mobile phone becomes increasingly complex, the time of startup is more and more longer, for the user of the non intelligent mobile phone of custom use, the present initial blank screen of smart mobile phone or the duration of a width rest image are long, show single.Ophone mobile phone is a kind of as android mobile phone, after start, in kernel start-up course, can show a width still picture, and lasting 3-4 second, and 3-4 is after second, and kernel starts complete, starts to start application program, and animation just can start demonstration.
As shown in Figure 1, be the start-up course schematic diagram of smart mobile phone in prior art, for example: after start, first be blank screen, then carry out successively Bootloader startup, kernel startup, until after kernel startup, start application program launching, could start animation and play.But in Bootloader startup, kernel start-up course, screen is blank screen always.
To sum up, in existing smart mobile phone start-up course, the unloading phase of Bootloader, screen is blank screen always, the unloading phase of kernel, screen can only show width still picture when LCD is initial, until application program launching starts just can show animation afterwards, while causing the Bootloader of existing smart mobile phone start-up course to start, screen cannot show and linux kernel startup screen shows single.
summary of the invention
The method of terminal startup control provided by the invention screen display processed, can realize and in Bootloader start-up course, show a width picture, solves the problem that in existing smart mobile phone Bootloader start-up course, screen can not show.
The method of the terminal startup control screen display processed that the embodiment of the present invention provides, can realize in kernel start-up course and show animation, solves the single problem of screen display in existing smart mobile phone kernel start-up course.
A method for terminal startup control screen display processed, comprising:
When operation Bootloader, initialization LCDs LCD, and from internal memory, distribute the first video memory; Between LCD and the first video memory, set up direct memory access passage;
Data to be displayed is copied in the first video memory, and send to LCD by DMA passage;
According to pre-configured control parameter, control LCD and show described data to be displayed.
A method for terminal startup control screen display processed, comprising:
Triggering kernel program starts, when operation kernel program, and initialization LCDs LCD, and from internal memory, distribute video memory;
Between LCD and video memory, set up direct memory access passage;
Data to be displayed is copied in video memory, and send to LCD by DMA passage;
According to pre-configured control parameter, control LCD and show data to be displayed;
Open the graphic terminal function in system, utilize graphic terminal function regularly to upgrade the data to be displayed in video memory, and send to LCD by DMA passage;
According to pre-configured control parameter, control the data to be displayed after LCD display update.
, comprising:
Pretrigger unit for initialization LCDs LCD when moving Bootloader, and distributes video memory from internal memory;
Path Setup unit, for setting up direct memory access passage between LCD and video memory;
Transmitting element, for copying data to be displayed to video memory, and sends to LCD by DMA passage;
The first display unit, shows described data to be displayed for controlling LCD according to pre-configured control parameter.
, comprising:
Kernel start unit, starts for triggering kernel program, initialization LCDs LCD when operation kernel program, and from internal memory, distribute video memory, between LCD and video memory, set up direct memory access passage, data to be displayed is copied in video memory, and send to LCD by DMA passage;
Updating block, for opening the graphic terminal function of system, utilizes graphic terminal function regularly to upgrade the data to be displayed in video memory, and sends to LCD by DMA passage;
Display unit, shows the data to be displayed after data to be displayed and renewal for control LCD according to pre-configured control parameter.
In the terminal start-up course that the embodiment of the present invention provides, control method, system and the equipment of screen display, can the unloading phase of Bootloader, to LCD, carry out initialization, and show a width picture, with respect to just showing a width still picture the kernel unloading phase in existing smart mobile phone start-up course, LCD is shown in advance.
In the second terminal start-up course that the embodiment of the present invention provides, control the method for screen display, can in kernel start-up course, initialization show a width picture, and utilize the data to be displayed in graphic terminal function regular update video memory, can make terminal screen in kernel start-up course can show animation.
accompanying drawing explanation
Fig. 1 is the start-up course schematic diagram of smart mobile phone in prior art;
The method flow diagram of the terminal startup control screen display processed that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 writes flash data the process schematic diagram of video memory for the first that the embodiment of the present invention provides;
Fig. 4 writes flash data the process schematic diagram of video memory for the second that the embodiment of the present invention provides;
Fig. 5 is a static picture schematic diagram;
Fig. 6 is ' O ' picture schematic diagram of rotation;
The structural drawing of the first mobile terminal that Fig. 7 provides for the embodiment of the present invention;
The structural drawing of the second mobile terminal that Fig. 8 provides for the embodiment of the present invention.
Embodiment
In existing smart mobile phone start-up course, the flash demo of screen is all inchoate after application program launching, and screen is blank screen always in Bootloader start-up course, and the unloading phase of kernel, screen can only be the width still picture of LCD when initial, the unloading phase of causing the Bootloader in existing smart mobile phone start-up course, screen cannot show, when kernel starts, screen display is single simultaneously.
The embodiment of the present invention provides method and the mobile terminal of a kind of terminal startup control screen display processed, the unloading phase that the initialized operation of LCD being increased to Bootloader, make can on screen, show a static picture unloading phase of the Bootloader of smart mobile phone, and the unloading phase of kernel, open graphic terminal function intrinsic in system, make on screen, can show animation in kernel start-up course, solved in prior art the single problem of screen display when the Bootloader in smart mobile phone start-up course starts and linux kernel starts, and improved user's susceptibility.
The embodiment of the present invention provides the method for a kind of terminal startup control screen display processed, as shown in Figure 2, comprising:
S201, when operation Bootloader Bootloader, initialization LCD; (not quite identical with the word in accompanying drawing)
Wherein, terminal can be carried out initialization LCD by needed display quality according to started program, is specially tone by controlling lcd driver initialization LCD, reverse angle etc.;
Wherein, any time operating in after initializes memory in Bootloader start-up course and clock of initialization LCD all can.
Generally, Bootloader starts can be divided into three phases: BOOTROM (the inner Bootloader of CPU), OBM (first order Bootloader of marvell CPU), BLOB (second level Bootloader of marvell CPU), hardware in BOOTROM stage running terminal is solidificated in the software in CPU, and this part software is not revisable; The OBM stage is detection hardware information, initiating hardware, GPIO initial configuration, acquiescence cpu frequency is set, downloads nandflash content; The BLOB stage is that in initiating hardware, each module arranges etc., so the initialization LCD of embodiment of the present invention operation can start execution OBM stage initializes memory and clock after;
In embodiments of the present invention, because can directly control the register of GPIO (universal input output pin), storer and CPU inside in the stage at OBM, therefore in step S201, can simulate SPI (Serial Peripheral Interface by GPIO, Serial Peripheral Interface (SPI)) clock signal of bus, CS signal and data transmission, by LCD initialization;
S202, from internal memory, distribute video memory to be used for storing data to be displayed;
Preferably, by the superlatively location part of (being in storer) in internal memory, distribute the space of fixed size as video memory, the address of video memory is by fixed value and not limit by automatic allocation space;
S203, between LCD and video memory, set up DMA (direct memory access (DMA)) passage;
Be specially: video memory address is recorded in DMA register, according to the video memory address in DMA register, between LCD and video memory, sets up DMA passage;
Wherein, the effect of DMA passage is that the data in video memory are sent to LCD;
The control parameter of S204, collocating LCD controller, wherein, lcd controller is controlled the demonstration of LCD according to the control parameter of configuration;
Wherein, the parameter of the parameter configuration lcd controller of lcd controller while working with reference to LCD, is specially: each register value of lcd controller while working with reference to LCD, directly the register value of writing to lcd controller;
S205: data to be displayed is copied in video memory, and send to LCD by DMA passage;
Wherein, can in advance data to be displayed be stored in flash memory, in step S205, the data to be displayed in flash memory can be copied in video memory;
S206: control LCD according to pre-configured control parameter and show data to be displayed.
Wherein, lcd controller is controlled LCD demonstration data to be displayed according to pre-configured control parameter.
Certainly, step S204 can carry out in any stage before step S206, does not limit in the present invention the execution time of step S204;
By the way, can, the unloading phase of the Bootloader of terminal startup, can show a width still picture.
S207, Bootloader start complete, trigger kernel and start, and when operation kernel program, open graphic terminal intrinsic in system, utilize the data in graphic terminal regular update video memory, and by DMA passage, the data after upgrading are sent to LCD;
Step S207 is that CPU control kernel program completes;
S208: control the data to be displayed after LCD display update according to pre-configured control parameter.
Wherein, lcd controller is controlled the data after LCD display update according to the parameter of configuration before.
Above-mentioned steps S201-S205 is that the CPU of mobile terminal controls Bootloader and completes the unloading phase of Bootloader, step S207 is that the CPU of mobile terminal controls kernel program and completes the unloading phase of kernel, and step S206, S208 are that the lcd controller of mobile terminal completes.
Wherein, in step S205, data to be displayed in flash memory is copied in video memory, as shown in Figure 3, for the first in the embodiment of the present invention writes the process schematic diagram in video memory by flash data, common implementation is: what in flash memory, preserve is PNG picture, PNG picture in flash memory is copied in storer, decompress again and obtain the picture of binary format, the picture of binary format in storer is copied in video memory, then in LCD screen display.
As shown in Figure 4, for the second in the embodiment of the present invention writes the process schematic diagram in video memory by flash data, the picture that can in advance needs be shown converts the picture of binary format to and is stored in flash memory, in step S205, can directly the picture of the binary format in flash memory be copied in video memory, then in LCD screen display.
Step S207, S208 can realize and in kernel start-up course, realize animation broadcasting.Introduce in detail the realization of step S207 below.
By the code analysis in kernel program start-up course, find a common pent function: graphic terminal.In common linux system or windows system starting process, conventionally have a cursor and coruscate on the upper left side of screen.In linux system or windows, this phenomenon is the working mark of graphic terminal.The function of graphic terminal comprises regular change video memory content, in kernel start-up course of the present invention, utilize the function of the regular change video memory of graphic terminal, the data content of preserving in video memory is constantly changed, therefore, in the procedure for displaying of screen, can realize the broadcasting of animation.
In step S207, utilize the data in graphic terminal regular update video memory to be specially: to call figure terminal program and read the data in flash memory with the frequency of setting, and write in video memory;
Certainly, the region (more new region) of graphic terminal program updates video memory can also be set, for example renewal or the local updating of whole screen, and the content of upgrading can be kept in internal memory, during each renewal, graphic terminal program reads the data that need renewal from internal memory, and writes the more new region in video memory;
If need to make the animation that shows abundant, need the content in the change video memory of whole screen, call figure terminal program and read the data content of several whole screens of preserving in flash memory with the frequency of setting, and copy in video memory;
Preferably, in order to make not affect kernel toggle speed in the process that increases animation demonstration, can arrange graphic terminal program, make each graphic terminal program only change the data content of fixed area in video memory.
For example: Fig. 5 is a static picture schematic diagram, during kernel starts, the region that graphic terminal program only changes ' O ' place in video memory is set, can in advance ' O ' in picture be determined to coordinate, and ' O ' extracted, carry out rotation as shown in Figure 6, postrotational ' O ' image data is saved in flash memory, when opening graphic terminal program, graphic terminal program can read the picture material in internal memory with the frequency of setting, and local refresh the graphic contents in video memory, realize flash demo.And the picture material of ' O ' is very little owing to only comprising, thereby the flash memory space taking in kernel starts is very little, and meanwhile, the refreshing frequency of these a few width pictures is not high, and therefore, in kernel starts, the resource taking is less, can not affect the normal startup of kernel.
The execution of above-mentioned steps S201-S208, can, in terminal start-up course, the unloading phase of Bootloader, control on screen and show a width still picture, and the unloading phase of kernel, realize flash demo on screen.
Preferably, in step S207, before kernel program is opened graphic terminal function, can also comprise the steps:
1) when operation kernel program, by LCD initialization, and from internal memory, distribute video memory;
Preferably, the address of the video memory that join with Bootloader motion time the address of the video memory that kernel program distributes is consistent, like this can be when kernel start, and screen there will not be the phenomenon of flash while again showing a width picture;
2) between LCD and video memory, set up DMA passage;
Be specially: video memory address is recorded in DMA register, according to the video memory address in DMA register, between LCD and video memory, sets up DMA passage;
3) the control parameter of collocating LCD controller;
When operation kernel program, the parameter of the parameter configuration lcd controller of each register when kernel program works according to LCD, the parameters of the lcd controller of general kernel program configuration is identical with the parameter of Bootloader configuration in step S204;
4) data to be displayed in flash memory is write in video memory, and sent to LCD by DMA passage;
5) according to pre-configured control parameter, control LCD and show data.
Wherein, step 3) also can be 1)-4) in any stage carry out.
1)-5) these several steps be kernel program again by LCD initialization and show the process of a width picture, after showing a width picture, can continue execution and open graphic terminal function, and upgrade video memory content, can in kernel start-up course, show animation.
Certainly because in Bootloader start-up course initialization LCD, distributed the parameter of video memory and collocating LCD controller, in the process starting at kernel, also can not carry out 1)-5) step.
Certainly, if in Bootloader start-up course, not to LCD initialization, and show a width picture, in the above embodiment of the present invention, can not perform step S201-S206, in kernel start-up course, must perform step 1)-5), then continue execution step S207 and S208.Can in kernel start-up course, realize the demonstration of animation at terminal startup control screen processed equally like this, realize the demonstration variation of screen in kernel start-up course.
As shown in Figure 7, the embodiment of the present invention also provides a kind of mobile terminal, comprising:
Transmitting element 703, for copying data to be displayed to video memory, and sends to LCD by DMA passage;
The first display unit 704, shows data to be displayed for controlling LCD according to pre-configured control parameter.
Preferably, above-mentioned mobile terminal also comprises:
Updating block 705, starts for triggering kernel program, and when operation kernel program, opens the graphic terminal in system, utilizes graphic terminal regularly to upgrade the data to be displayed in video memory, and sends to LCD by DMA passage; And
The second display unit 706, also for controlling the data to be displayed after LCD display update according to pre-configured control parameter.
As shown in Figure 8, the embodiment of the present invention also provides a kind of mobile terminal, comprising:
Updating block 802, for opening the graphic terminal of system, utilizes graphic terminal regularly to upgrade the data to be displayed in video memory, and sends to LCD by DMA passage;
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to process flow diagram and/or the block scheme of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block scheme each flow process and/or the flow process in square frame and process flow diagram and/or block scheme and/or the combination of square frame.Can provide these computer program instructions to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computing machine or other programmable data processing device is produced for realizing the device in the function of flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computing machine or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame on computing machine or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (8)
1. a method for terminal startup control screen display processed, is characterized in that, comprising:
When operation Bootloader, initialization LCDs LCD, and from internal memory, distribute the first video memory; Between LCD and the first video memory, set up direct memory access passage;
Data to be displayed is copied in the first video memory, and send to LCD by DMA passage;
According to pre-configured control parameter, control LCD and show described data to be displayed;
Triggering kernel program starts, and when operation kernel program, opens the graphic terminal function in system, utilizes graphic terminal function regularly to upgrade the data to be displayed in the first video memory, and sends to LCD by DMA passage;
According to pre-configured control parameter, control the data to be displayed after LCD display update.
2. the method for claim 1, is characterized in that, described in open the graphic terminal function in system before, also comprise:
In the operational process of kernel program, reinitialize LCD, and from internal memory, distribute the second video memory; Between LCD and the second video memory, set up DMA passage;
Open the graphic terminal function in system, utilize graphic terminal function regularly to upgrade the data to be displayed in the second video memory, and send to LCD by DMA passage;
According to pre-configured control parameter, control the data to be displayed after LCD display update.
3. method as claimed in claim 1 or 2, is characterized in that, the described data of utilizing graphic terminal function regularly to upgrade in the first or second video memory are specially the data to be displayed that utilizes graphic terminal function regularly to upgrade specific region in the first or second video memory.
4. the method for claim 1, is characterized in that, describedly between LCD and the first video memory, sets up DMA passage and is specially:
The first video memory address is recorded in DMA register;
According to the first video memory address in DMA register, between LCD and the first video memory, set up DMA passage.
5. a method for terminal startup control screen display processed, is characterized in that, comprising:
Triggering kernel program starts, when operation kernel program, and initialization LCDs LCD, and from internal memory, distribute video memory;
Between LCD and video memory, set up direct memory access passage;
Data to be displayed is copied in video memory, and send to LCD by DMA passage;
According to pre-configured control parameter, control LCD and show data to be displayed;
Open the graphic terminal function in system, utilize graphic terminal function regularly to upgrade the data to be displayed in video memory, and send to LCD by DMA passage;
According to pre-configured control parameter, control the data to be displayed after LCD display update.
6. method as claimed in claim 5, is characterized in that, the described data to be displayed that utilizes graphic terminal function regularly to upgrade in video memory is specially the data to be displayed that utilizes graphic terminal function specific region in setting-up time renewal video memory.
7. a mobile terminal, is characterized in that, comprising:
Pretrigger unit for initialization LCDs LCD when moving Bootloader, and distributes video memory from internal memory;
Path Setup unit, for setting up direct memory access passage between LCD and video memory;
Transmitting element, for copying data to be displayed to video memory, and sends to LCD by DMA passage;
The first display unit, shows described data to be displayed for controlling LCD according to pre-configured control parameter;
Updating block, starts for triggering kernel program, and when operation kernel program, opens the graphic terminal function in system, utilizes graphic terminal function regularly to upgrade the data to be displayed in video memory, and sends to LCD by DMA passage; And
The second display unit, also for controlling the data to be displayed after LCD display update according to pre-configured control parameter.
8. a mobile terminal, is characterized in that, comprising:
Kernel start unit, starts for triggering kernel program, initialization LCDs LCD when operation kernel program, and from internal memory, distribute video memory, between LCD and video memory, set up direct memory access passage, data to be displayed is copied in video memory, and send to LCD by DMA passage;
Updating block, for opening the graphic terminal function of system, utilizes graphic terminal function regularly to upgrade the data to be displayed in video memory, and sends to LCD by DMA passage;
Display unit, shows the data to be displayed after data to be displayed and renewal for control LCD according to pre-configured control parameter.
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