Method and mobile terminal for controlling display of waiting information during program startup

• US 9,201,660 B2
• Filed: 01/24/2011
• Issued: 12/01/2015
• Est. Priority Date: 02/03/2010
• Status: Active Grant

• Current Assignee: Hisense Mobile Communications Technology Co., Ltd. (Qingdao Huatong State-Owned Capital Operation (Group) Co., Ltd.)
• Original Assignee: Hisense Mobile Communications Technology Co., Ltd. (Qingdao Huatong State-Owned Capital Operation (Group) Co., Ltd.)
• Inventors: Zuo, Jian
• Primary Examiner(s): Perromat, Carlos
• Assistant Examiner(s): Sheng, Xin
• Application Number:
  US13/517,315
• Publication Number:
  US 20120256935A1
• Time in Patent Office: 1,772 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 9/4401 Bootstrapping security arrangements therefor G06F21/57
• CPC Class Codes: G09G 2330/026 Arrangements or methods related to booting a display
• CPC Class Codes: G09G 5/395 Arrangements specially adapted for transferring the contents of the bit-mapped memory to the screen G09G5/399 takes precedence
• CPC Class Codes: G09G 5/399 using two or more bit-mapped memories, the operations of which are switched in time, e.g. ping-pong buffers

Abstract

A method and a mobile terminal for controlling display of waiting information during program startup are disclosed, relating to the field of computers. In the invention, a step of initializing a liquid crystal display (LCD) by a kernel is eliminated, and an LCD controller is reinitialized after the waiting information data in a bootloader display memory is copied to the display memory of the kernel, therefore, the LCD can directly read the waiting information data in the display memory of the kernel according to a display memory first address in the LCD controller. The waiting information data in the bootloader display memory is copied to the display memory of the kernel in advance, therefore, the displayed content is not changed completely for users. In addition, the step of initializing the LCD is eliminated, so that the phenomena of distortion, flashing, blurred screen and the like of the LCD screen display are completely avoided, the display quality during program startup is improved, and better visual experience is brought for users.

Claims

1. A method of controlling display of waiting information during program startup comprising:

initializing, by a bootloader, a Liquid Crystal Display, LCD, distributing a first video memory, copying or writing a waiting information into the first video memory, copying a first address of the first video memory to an LCD controller, displaying, by the LCD, according to waiting information data in the first video memory and triggering startup of a kernel program; and

during the startup of the kernel program, distributing a second video memory, copying the waiting information data in the first video memory to the second video memory, updating a first address of the second video memory to the LCD controller, and continuously displaying, by the LCD, according to the waiting information data in the second video memory, to enable content displayed on the LCD during the startup of the kernel program to be the same as content displayed on the LCD before the startup of the kernel program, wherein the waiting information data in the second video memory is the same as the waiting information data in the first video memory.

2. The method of claim 1, wherein initializing the LCD by the bootloader comprises:

initializing, by the bootloader, the LCD according to a display quality required by the program to be started.

3. The method of claim 1, wherein copying the waiting information data in the first video memory to the second video memory by the kernel program comprises:

determining an initial address of the first video memory;

determining an initial address for storing the waiting information data in the first video memory, and acquiring the waiting information data; and

copying the waiting information data in the first video memory to the second video memory.

4. The method of claim 3, wherein the initial address of the first video memory, determined by the kernel program, is:

an initial address of a memory in which the first video memory is located plus a size of the whole memory and subtract 2 MB space.

5. The method of claim 4, wherein the initial address for storing the waiting information data in the first video memory, determined by the kernel program, is:

the sum of the initial address of the first video memory and 20 bytes.

6. The method of claim 3, wherein the initial address for storing the waiting information data in the first video memory, determined by the kernel program, is:

the sum of the initial address of the first video memory and 20 bytes.

7. The method of claim 1, wherein after reinitializing the first address of the second video memory to the LCD controller, further comprising:

modifying the waiting information data copied to the second video memory from the first video memory in the second video memory.

8. The method of claim 1, wherein continuously displaying, by the LCD, according to the waiting information data in the second video memory comprises:

continuously displaying, by the LCD, according to the waiting information data in the second video memory until the startup of the kernel program is completed.

9. The method of claim 1, wherein distributing the first video memory comprises:

selecting any section of continuous and idle space in a memory as the first video memory.

10. A mobile terminal, comprising a memory and a processor, wherein the memory stores program code, and wherein the program code is executable by the processor to implement:

initializing, by a bootloader, a Liquid Crystal Display, LCD, distributing a first video memory, copying or writing a waiting information into the first video memory, copying a first address of the first video memory to an LCD controller, displaying, by the LCD, according to waiting information data in the first video memory and triggering startup of a kernel program; and

during the startup of the kernel program, distributing a second video memory, copying waiting information data in the first video memory to the second video memory, updating a first address of the second video memory to the LCD controller, and continuously displaying, by the LCD, according to the waiting information data in the second video memory, to enable content displayed on the LCD during the startup of the kernel program to be the same as content displayed on the LCD before the startup of the kernel program, wherein the waiting information data in the second video memory is the same as the waiting information data in the first video memory.

11. The mobile terminal of claim 10, wherein initializing the LCD by the bootloader comprises:

initializing, by the bootloader, the LCD according to a display quality required by the program to be started.

12. The mobile terminal of claim 10, wherein copying the waiting information data in the first video memory to the second video memory by the kernel program comprises:

determining an initial address of the first video memory;

determining an initial address for storing the waiting information data in the first video memory, and acquiring the waiting information data; and

copying the waiting information data in the first video memory to the second video memory.

13. The mobile terminal of claim 12, wherein the initial address of the first video memory, determined by the kernel program, is:

an initial address of a memory in which the first video memory is located plus a size of the whole memory and subtract 2 MB space.

14. The mobile terminal of claim 12, wherein the initial address for storing the waiting information data in the first video memory, determined by the kernel program, is the sum of the initial address of the first video memory and 20 bytes.

15. The mobile terminal of claim 10, wherein after reinitializing the first address of the second video memory to the LCD controller, further comprising:

modifying the waiting information data copied to the second video memory from the first video memory in the second video memory.

16. The mobile terminal of claim 10, wherein continuously displaying, by the LCD, according to the waiting information data in the second video memory comprises:

continuously displaying, by the LCD, according to the waiting information data in the second video memory until the startup of the kernel program is completed.

17. The mobile terminal of claim 10, wherein distributing the first video memory comprises:

selecting any section of continuous and idle space in a memory as the first video memory.