CN101505332A - Optimized processing method for sleeping/waking SD card by smart phone - Google Patents
Optimized processing method for sleeping/waking SD card by smart phone Download PDFInfo
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- CN101505332A CN101505332A CNA2008100576133A CN200810057613A CN101505332A CN 101505332 A CN101505332 A CN 101505332A CN A2008100576133 A CNA2008100576133 A CN A2008100576133A CN 200810057613 A CN200810057613 A CN 200810057613A CN 101505332 A CN101505332 A CN 101505332A
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Abstract
The invention discloses an optimization processing method for a sleep waking SD card (Secure Digital Memory Card) of a smart mobile phone. During waking, the process of removing and inserting a card is no longer simulated, but a command of a reset card is sent out and an SD card storage layer is treated specially to ensure that reading, writing and accessing can be carried out normally in time when the modified SD card is waked up. The optimization processing method for a sleep waking SD card of a smart mobile phone has the advantage that the time consumption of SD drive is greatly reduced during sleep waking, and the sleep waking takes only 1 second so as to ensure that reading, writing and accessing can be carried out rapidly when the modified SD card is waked up; meanwhile, the problems of screen frozen and system halted when inserting the SD card for sleep waking are solved, and the application program in SD beforehand runs fast, so that the user can be given an wake-use real-time experience, that is, immediately accessing the SD and other applications after waking.
Description
Technical field
Be suitable for adopting the smart mobile phone of Intel's central processing unit 310/320 series platform and Intel's central processing unit 270 series platforms
Background technology
Along with the needs of people's living standard raising and communication, smart mobile phone is more and more universal at present.Each mobile-phone manufacturers increase the attraction of product in order to attract more people's eyeball.On smart mobile phone, added various functions.Supporting the SD card faster, that capacity is bigger such as requiring, is a kind of memory device of new generation of based semiconductor fast-flash memory device, and the SD card is that Panasonic, bright dish and Toshiba develop jointly on the basis of mmc card (MultiMedia Card).Its size is suitable with stamp, heavily about two grams.Also have MiniSD card (Mini Secure Digital Memory Card) and MicroSD card (Micro Secure Digital Memory Card) with the storage card of SD card compatibility, afterwards both are in protocol layer and SD card compatibility, just littler on size and weight, to adapt to the needs of handheld device portability.
But series platform on current Intel central processing unit 270 series platforms and up-to-date Intel's central processing unit 310/320 inserts the SD sleep, behind the sleep awakening, exists the card in the draw-in groove not visit at once, needs the time more than 6 seconds at least.There is following typical problem like this:
1, behind the sleep awakening, under file directory, the storage card icon needs 6 seconds, just can show, and just can only could visit the file in the SD card after 6 seconds
If certain application program among the 2 sleep front opening SD, such as global positioning system, after waking up, application program can not keep the state that connects before with automatic disconnection.
3, after the sleep, the thread of low priority will get clogged and cause and can not in time move, and the back smart mobile phone that can cause sleeping can not normally wake up, and serious problem causes smart mobile phone to freeze the screen deadlock.Such as extraneous interruption (visual telephone incoming call) waken system is arranged, at this moment SD card priority is higher, seize central processing unit) resource, the priority ratio of visual telephone thread is lower, cause the thread process of other similar low priorities such as visual telephone obviously to be delayed, can cause the visual telephone cisco unity malfunction when serious, even the screen deadlock occur freezing.
Summary of the invention
At above-mentioned defective, the present invention has defined a kind of optimized processing method for sleeping/waking SD card by smart phone, during sleep awakening, no longer simulates removable card, and the order and the special processing of SD accumulation layer of only sending reset of card can normally in time be carried out read and write access when guaranteeing to revise back SD card sleep awakening.
The present invention discloses a kind of optimized processing method for sleeping/waking SD card by smart phone, the beneficial effect that is provided is, greatly reduce SD and drive consuming time at sleep awakening, sleep awakening is consuming time to have only 1 second, can carry out read and write access rapidly when guaranteeing to revise back SD card sleep awakening like this, can solve simultaneously sleep awakening freeze problem that screen crashes and fast before the operation in the application program of SD, like this to user's i.e. real-time experience of usefulness of promptly waking up, can zero access SD and other application after promptly waking up.
Description of drawings
Fig. 1 SD card drives framework;
Fig. 2 revises preceding flow process;
Fig. 3 revises the back flow process.
Embodiment
The SD that Intel's central processing unit 310/320 series platform provides drives framework as shown in Figure 1, comprises SD accumulation layer, SD bus driver layer, SD controller layer.
1, the processing before the invention, see Fig. 1, Fig. 2:
Behind power management module 201 sleep awakenings, what SD controller layer 104 had been simulated the SD card pulls out card operation 202, drives layer 103 and SD accumulation layer 102SD card is extracted in order to notice SD bus from draw-in groove.Simulate plug-in card action 204 afterwards again, drive in layer 103 and the SD accumulation layer 102 existing SD cards insertion draw-in grooves in order to notice SD bus.SD bus driver layer 103 pulls out card operation 5-6 consuming time second, and priority is higher, afterwards the action 1-2 consuming time second of SD bus driver layer 103 plug-in card.Like this, behind slotting SD card sleep awakening, card is extracted, inserted to SD bus driver layer 103 simulation with 6-8 consuming time second.It is higher that SD drives priority, the chance that the thread of low priority can't obtain moving in this process.Simultaneously, the application program in the SD card can not continue operation because of the action of simulation removable card before.
2, Fig. 1 is seen in processing of the present invention, Fig. 3:
When inserting the SD sleep awakening, SD controller layer 104 is no longer simulated removable card, and the order and the special processing of SD accumulation layer of only sending reset of card.After being power management module 301 sleep awakenings, reset of card action module 303 drives layer 103 to bus and SD accumulation layer 102 is sent SD card reset command in the draw-in groove, and SD bus driver layer 103 was handled homing actions about 1 second only consuming time.Like this, greatly reduce the consuming time of system's sleep awakening, effectively avoid the problem of the preceding existence of the present invention simultaneously.
Such scheme example of the present invention only is used for illustrative purposes, fails to contain all, is not in order to limit the present invention.Should be pointed out that for a person skilled in the art can make some improvements and modifications under the premise of not departing from the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1, a kind of optimized processing method for sleeping/waking SD card by smart phone is characterized in that, during sleep awakening, no longer simulates removable card, and the order and the special processing of SD accumulation layer of only sending reset of card.
2, a kind of optimized processing method for sleeping/waking SD card by smart phone according to claim 1 is characterized in that, SD drives framework and comprises SD accumulation layer, SD bus driver layer, SD controller layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100576133A CN101505332A (en) | 2008-02-04 | 2008-02-04 | Optimized processing method for sleeping/waking SD card by smart phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100576133A CN101505332A (en) | 2008-02-04 | 2008-02-04 | Optimized processing method for sleeping/waking SD card by smart phone |
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| Publication Number | Publication Date |
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| CN101505332A true CN101505332A (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100576133A Pending CN101505332A (en) | 2008-02-04 | 2008-02-04 | Optimized processing method for sleeping/waking SD card by smart phone |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427498A (en) * | 2011-08-04 | 2012-04-25 | 广东欧珀移动通信有限公司 | Method of eliminating interference of ESD (Electro-Static discharge) on T card of mobile phone |
| CN107589904A (en) * | 2016-07-08 | 2018-01-16 | 中兴通讯股份有限公司 | The reading/writing method and device of SD card |
| CN111132282A (en) * | 2018-11-01 | 2020-05-08 | 华为终端有限公司 | Application processor awakening method and device applied to mobile terminal |
-
2008
- 2008-02-04 CN CNA2008100576133A patent/CN101505332A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427498A (en) * | 2011-08-04 | 2012-04-25 | 广东欧珀移动通信有限公司 | Method of eliminating interference of ESD (Electro-Static discharge) on T card of mobile phone |
| CN107589904A (en) * | 2016-07-08 | 2018-01-16 | 中兴通讯股份有限公司 | The reading/writing method and device of SD card |
| CN107589904B (en) * | 2016-07-08 | 2021-09-03 | 中兴通讯股份有限公司 | SD card reading and writing method and device |
| CN111132282A (en) * | 2018-11-01 | 2020-05-08 | 华为终端有限公司 | Application processor awakening method and device applied to mobile terminal |
| US11907041B2 (en) | 2018-11-01 | 2024-02-20 | Huawei Technologies Co., Ltd. | Application processor wakeup method and apparatus applied to mobile terminal |
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Application publication date: 20090812 |