CN105159722A - Method for RTC (Real Time Clock) wake-up system and computer - Google Patents
Method for RTC (Real Time Clock) wake-up system and computer Download PDFInfo
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- 230000037007 arousal Effects 0.000 claims description 10
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 14
- 230000005856 abnormality Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 2
- 230000005059 dormancy Effects 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
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Abstract
The invention relates to a method for an RTC (Real Time Clock) wake-up system and a computer. The method for the RTC wake-up system comprises the following steps of: judging whether an operating system starts to execute an operation for entering a power saving mode state (S<x>) or not, wherein the power saving mode state (S<x>) includes one of dormant states (S<1> and S<3>), a standby state (S<4>) and a power-off state (S<5>); if the operating system starts to execute the operation for entering the power saving mode state (S<x>), obtaining an RTC wake-up parameter set by a user from a memory storing BIOS (Basic Input/Output System) parameters; judging whether to start the function of the RTC wake-up system or not according to the RTC wake-up parameter; if so, writing the RTC wake-up parameter into a relevant wake-up register of the memory storing computer startup information; setting a southbridge and the control register of the memory so that the operating system executes the operation for entering a normal work state (S<0>) at the time set by the user. The embodiment of the invention has the advantages that the problem of system abnormality due to interruption triggered by an RTC wake-up event in the normal operating process of the system is avoided; and the stability and the reliability of the system are improved.
Description
Technical field
The invention belongs to field of computer technology, particularly relate to a kind of method and computing machine of RTC waken system.
Background technology
During computer motherboard design, consider the convenience that user uses and raise the efficiency, mainboard Basic Input or Output System (BIOS) (BasicInput & OutputSystem, be called for short BIOS) provide timing start-up function, i.e. real-time timepiece chip (RealTimeClock is called for short RTC) waken system function.The implementation method of this RTC waken system provides by BIOS the switch whether enabling RTC arousal function, and enabling or forbidding for RTC arousal function, BIOS runs different flow processs, performs different programs.And sets itself in the configuration interface that can be provided at BIOS by user of concrete on time.Such as certain user is 9:00 clock working in morning, can 8:50 Auto Power On be set in BIOS, so when user is to company computer-chronograph Auto Power On, user can devote oneself to work immediately, manually to start shooting again after eliminating company this process, and consuming time usually at 1 minute to 3 minutes not etc. according to the different start process of allocation of computer.
The method of the RTC waken system that current industry generally adopts is: computing machine is in the process of start, BIOS judges whether user enables RTC arousal function, if enable RTC arousal function, what then BIOS acquisition user was arranged treats wakeup time, and these time parameters are written in the related register that in the storage chip (as CMOS chip) preserving the basic log-on message of computing machine, RTC wakes up, remove corresponding state register, RTC wake-up interrupts enable register in south bridge and CMOS is then set; If user prohibits RTC arousal function, then BIOS removes RTC wake-up interrupts enable register in south bridge and CMOS.RTC wakes up after relative program run, and BIOS continues to run starting procedure, and normal boot enters operating system.After this, operating system enters into S
x(in advanced configuration and power-management interface ACPI specification, operating system is in the definition of battery saving mode state, such as dormancy (S after state
1, S
3), standby (S
4), shutdown (S
5), be referred to as S
x), when system time arrives the wakeup time of user's setting, operating system is by Auto Power On.
But, the above-mentioned method generally adopted is owing to being the wakeup time arranged in the process of start, if this back operation system is in open state for a long time, the 8:50 that such as user is arranged performs RTC and wakes up, when arriving 8:50 when the system is operating, system is still in open state, and operating system is not in S
xstate, anomalous events such as causing system is unstable, the program non-normal termination that runs occurs by the related interrupts so now produced.
Summary of the invention
Therefore, for solving technological deficiency and the deficiency of prior art existence, the present invention proposes a kind of method and computing machine of RTC waken system.
Particularly, the method for a kind of RTC waken system that the embodiment of the present invention proposes, comprising:
(S1) judge whether operating system starts execution and enter battery saving mode state (S
x) operation, described battery saving mode state (S
x) comprise dormant state (S
1, S
3), holding state (S
4) and off-mode (S
5) one of them;
(S2) if described operating system starts execution enter described battery saving mode state (S
x) operation, then obtain from the storer storing BIOS parameter user arrange RTC wake up parameter;
(S3) judge whether to start RTC waken system function according to described RTC wake up parameter, if, then described RTC wake up parameter write is stored in the Related arousal register of the storer of computer starting information, and the control register arranging south bridge and described storer enters normal operating conditions (S to make described operating system in the time execution that user sets
0) operation.
In one embodiment, described method also comprises:
(X) judge whether described operating system starts execution and enter described normal operating conditions (S
0) operation, if so, then to arrange in the control register of described south bridge and described storer about the information of RTC waken system function to forbid described RTC waken system function, and guide described operating system to perform to enter described normal operating conditions (S
0) operation.
In one embodiment, step (S2) also comprises: if described operating system starts execution enter described battery saving mode state (S
x) operation, then judge whether described operating system supports the function of SMIHandler; If not, then do not perform RTC waken system function and guide the execution of described operating system to enter described battery saving mode (S
x) operation.
In one embodiment, before step (S3), also comprise:
(Y1) will be kept in interim core buffer from storing the described RTC wake up parameter obtained in the storer of BIOS parameter;
(Y2) judge that whether described RTC wake up parameter is legal; In this way, then step (S3) is performed; If not, then guide described operating system to perform and enter described battery saving mode state (S
x) operation.
In one embodiment, described RTC wake up parameter at least comprises several as follows:
For characterizing first parameter of whether enabling RTC waken system function;
For characterizing the second parameter of RTC waken system pattern; And
For characterizing the 3rd parameter of RTC wakeup time.
In one embodiment, step (S3) comprising:
(S31) judge whether to start described RTC waken system function according to described first parameter;
(S32) if so, then judge described second parameter and described 3rd parameter whether effective;
(S33) under judged result is effective situation, by in the data register of storer described in described 3rd parameter read-in, and the control register arranging south bridge and described storer enters described normal operating conditions (S to make described operating system in the time execution that user sets
0) operation.
In one embodiment, step (S33) comprises further:
(S331) at described battery saving mode state (S
x) in corresponding SMIHandler, remove the information about RTC waken system function in the status register of described storer, and by data register described in described 3rd parameter read-in that is stored in described interim core buffer, the control register of described south bridge and described storer is set;
(S332) described battery saving mode state (S is registered
x) corresponding SMIHandler;
(S333) guide described operating system to perform and enter described battery saving mode state (S
x) operation.
In one embodiment, store described in BIOS parameter storer and described in store computer starting information storer be CMOS chip or NVRAM.
In addition, a kind of computing machine that another embodiment of the present invention proposes, comprise display and computer motherboard, described computer motherboard is provided with BIOS, and wherein, described BIOS can perform the method according to any one of above-described embodiment.
Embodiments of the invention, no matter whether user is arranged in BIOS configuration menu is enabled RTC waken system function, and in start process, BIOS forbids RTC arousal function; S is left in system
0, enter S
xduring state, obtain the RTC that in BIOS configuration menu, user is arranged and wake correlation parameter up; After the legitimacy judging above-mentioned correlation parameter and validity, at S
xin each corresponding SMIhandler, the related register that RTC wakes up is arranged.Thus, avoid in the process normally run in system, occur that interruption that RTC wake events triggers leads to system abnormity problem, improves stability and the reliability of system.
By the detailed description below with reference to accompanying drawing, other side of the present invention and feature become obvious.But it should be known that this accompanying drawing is only the object design of explanation, instead of as the restriction of scope of the present invention, this is because it should with reference to additional claim.Should also be appreciated that, unless otherwise noted, unnecessaryly draw accompanying drawing to scale, they only try hard to structure described herein and flow process are described conceptually.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the schematic flow sheet of the method for a kind of RTC waken system of the embodiment of the present invention;
Fig. 2 is the schematic flow sheet of the method for the another kind of RTC waken system of the embodiment of the present invention;
Fig. 3 is the structural representation of a kind of computing machine of the embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 1, Fig. 1 is the schematic flow sheet of the method for a kind of RTC waken system of the embodiment of the present invention.The method can be applied to the timing wake-up of computing machine, and performed by computer motherboard BIOS, idiographic flow is as follows:
(S1) judge whether operating system starts execution and enter battery saving mode state (S
x) operation, battery saving mode state (S
x) comprise dormant state (S
1, S
3), holding state (S
4) and off-mode (S
5) one of them;
(S2) if operating system starts execution enter battery saving mode state (S
x) operation, then obtain from the storer storing BIOS parameter user arrange RTC wake up parameter;
(S3) judge whether to start RTC waken system function according to RTC wake up parameter, if, then the write of RTC wake up parameter is stored in the Related arousal register of the storer of computer starting information, and the control register arranging south bridge and storer enters normal operating conditions (S to make operating system in the time execution that user sets
0) operation.
Wherein, the method also comprises:
(X) judge whether operating system starts execution and enter normal operating conditions (S
0) operation, if so, then to arrange in the control register of south bridge and storer about the information of RTC waken system function to forbid RTC waken system function, and guide operating system to perform to enter normal operating conditions (S
0) operation.
Particularly, step (S2) also comprises: if operating system starts execution enter battery saving mode state (S
x) operation, then judge whether operating system supports the function of SMIHandler; If not, then do not perform RTC waken system function and guide operating system execution to enter battery saving mode (S
x) operation.Wherein, SMIHandler (SystemManagementInterruptHandler, system management interrupt handle) is the function that in BIOS, handles system management is interrupted.
Particularly, before step (S3), also comprise:
(Y1) will be kept in interim core buffer from storing the RTC wake up parameter obtained in the storer of BIOS parameter;
(Y2) judge that whether RTC wake up parameter is legal; In this way, then step (S3) is performed; If not, then guide operating system to perform and enter battery saving mode state (S
x) operation.
Particularly, RTC wake up parameter at least comprises several as follows:
For characterizing first parameter of whether enabling RTC waken system function;
For characterizing the second parameter of RTC waken system pattern; And
For characterizing the 3rd parameter of RTC wakeup time.
Particularly, step (S3) comprising:
(S31) judge whether to start RTC waken system function according to the first parameter;
(S32) if so, then judge the second parameter and the 3rd parameter whether effective;
(S33) under judged result is effective situation, by the data register of the 3rd parameter read-in storer, and the control register arranging south bridge and storer enters normal operating conditions (S to make operating system in the time execution that user sets
0) operation.
Wherein, step (S33) comprises further:
(S331) at battery saving mode state (S
x) in corresponding SMIHandler, remove the information about RTC waken system function in the status register of storer, and by the 3rd parameter read-in data register that is stored in interim core buffer, the control register of south bridge and storer is set;
(S332) battery saving mode state (S is registered
x) corresponding SMIHandler;
(S333) guide operating system to perform and enter battery saving mode state (S
x) operation.
Particularly, the storer storing BIOS parameter and the storer storing computer starting information are CMOS chip or NVRAM (Non-VolatileRandomAccessMemory, nonvolatile random access memory).
In the present embodiment, be that operating system is entering S
xprocess in, when calling SMIhandler (dormancy, the SMIhandler that standby, shut down event has oneself correspondence respectively) of corresponding event, extra code and flow process is added in BIOS, judge the correlation parameter whether user is provided with RTC and wakes up, if it is in corresponding SMIHandler, the correlation parameter that wakes up of RTC that user is arranged is written in the CMOS corresponding registers that RTC wakes up, avoids the generation producing the situations such as system that the related interrupts waken up causes is unstable under open state.
Embodiment two
Refer to Fig. 2, Fig. 2 is the schematic flow sheet of the method for the another kind of RTC waken system of the embodiment of the present invention.The present embodiment is described in detail the method for RTC waken system of the present invention on the basis of above-described embodiment, wherein, in RTC wakeup process, the register that BIOS can operate is divided into 3 classes: (1) control register, such as whether allows the pattern (12 hours, 24 hours) that RTC wakes up, RTC wakes up; (2) data register, the concrete wakeup time that user is arranged, BIOS needs these to get and be filled in data register to go; (3) status register, this register is system Lookup protocol, and such as after having RTC wake events to occur, this register will be automatically set as 1, BIOS by system can do clear operation (such as changing 0 into by 1).Particularly, to comprise step as follows for the method for the present embodiment:
(1) in start process, no matter in BIOS configuration menu user arrange enable or forbid RTC waken system function, BIOS all performs and forbids RTC waken system function;
(2) normal boot enters operating system, namely enters S
0state;
(3) system leaves S
0state, starts to enter S
x(S
1or S
3or S
4or S
5) state; It should be noted that, in standard A CPI specification, S
xdo not comprise S
5, only include S
1, S
3, S
4, the present invention for convenience of description, uses S
xrefer to S
1, S
3, S
4, S
5.
(4) judge whether current BIOS, operating system support SMIHandler function, if supported, perform step (5); Otherwise, perform step (11);
(5) BIOS obtains the correlation parameter of the RTC waken system that user is arranged from the storer (can be CMOS, NVRAM or other storeies) storing BIOS parameter, is kept in interim core buffer.This parameter comprises, and whether enables pattern (a. certain time point waken system of specific certain day of RTC arousal function, RTC waken system; B. certain time point waken system of every day), concrete time of RTC waken system, when comprising/the concrete numerical value such as point of/second;
(6) whether the data in determining step (5) in interim core buffer are legal, and namely whether step (5) obtains the parameter of RTC waken system, if so, perform step (7); Otherwise, perform step (10);
(7) according to the parameter of the RTC waken system obtained in step (5), judge whether user enables the function of RTC waken system, if so, perform step (8); Otherwise, perform step (10);
(8) judge that whether the RTC wakeup time parameter that user arranges effective, the such as time is under 12 hours patterns, hour numerical value should between 0 ~ 11; Under 24 hours patterns, hour numerical value should between 0 ~ 23; Point and the numerical value of second should respectively between 0 ~ 59.If the RTC wakeup time parameter that user is arranged is effective, perform step (9); Otherwise, perform step (10);
(9) in each SMIHandler that Sx is corresponding, remove RTC and wake correlation behavior register and OIER (control register) up, user arrange be kept at waking up in above-mentioned interim core buffer time, in RTC wakes up in the parameter read-in to CMOS such as minute, second corresponding registers, then put and comprised the OIER that in south bridge and CMOS, RTC wakes up;
(10) each SMIHandler corresponding to Sx is registered respectively;
(11) continue to perform Sx flow process;
(12) terminate.
Technical solution of the present invention and the maximum difference of existing scheme are that existing scheme enters S in system
0during state, BIOS goes to arrange RTC waken system related register according to the setting of user, and technical solution of the present invention enters S in system
0during state, no matter whether user enables RTC waken system function, and BIOS forbids RTC waken system function, when system leaves S
0state enters S
xduring state, BIOS is set in S according to user
xset by the code of extra interpolation and the related register of flow process to RTC waken system in each corresponding SMIhandler, thus avoid at S
0the impact that under state, the triggering of RTC wake-up interrupts produces system and application software.
Embodiment three
Refer to Fig. 3, Fig. 3 is the structural representation of a kind of computing machine of the embodiment of the present invention.The computing machine of the present embodiment can be desktop computer (Desktop), computer all-in-one machine (Computerintegratedmachine), notebook computer (Notebook or Laptop) etc.This computing machine 10 comprises: display screen 11, power supply 12, mainboard 13 and video card, network interface card, sound card and the hard drive etc. that are integrated on mainboard 13.Wherein, this mainboard 13 is provided with BIOS131, this BIOS131 can perform the method for the RTC waken system of above-described embodiment.
In sum, apply specific case herein and set forth the method for RTC waken system of the present invention and the principle of computing machine and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention; all will change in specific embodiments and applications; in sum, this description should not be construed as limitation of the present invention, and protection scope of the present invention should be as the criterion with appended claim.
Claims (9)
1. a method for RTC waken system, is characterized in that, comprising:
(S1) judge whether operating system starts execution and enter battery saving mode state (S
x) operation, described battery saving mode state (S
x) comprise dormant state (S
1, S
3), holding state (S
4) and off-mode (S
5) one of them;
(S2) if described operating system starts execution enter described battery saving mode state (S
x) operation, then obtain from the storer storing BIOS parameter user arrange RTC wake up parameter;
(S3) judge whether to start RTC waken system function according to described RTC wake up parameter, if, then described RTC wake up parameter write is stored in the Related arousal register of the storer of computer starting information, and the control register arranging south bridge and described storer enters normal operating conditions (S to make described operating system in the time execution that user sets
0) operation.
2. the method for claim 1, is characterized in that, also comprises:
(X) judge whether described operating system starts execution and enter described normal operating conditions (S
0) operation, if so, then to arrange in the control register of described south bridge and described storer about the information of RTC waken system function to forbid described RTC waken system function, and guide described operating system to perform to enter described normal operating conditions (S
0) operation.
3. the method for claim 1, is characterized in that, step (S2) also comprises:
If described operating system starts execution enter described battery saving mode state (S
x) operation, then judge whether described operating system supports the function of SMIHandler; If not, then do not perform RTC waken system function and guide the execution of described operating system to enter described battery saving mode (S
x) operation.
4. the method for claim 1, is characterized in that, before step (S3), also comprises:
(Y1) will be kept in interim core buffer from storing the described RTC wake up parameter obtained in the storer of BIOS parameter;
(Y2) judge that whether described RTC wake up parameter is legal; In this way, then step (S3) is performed; If not, then guide described operating system to perform and enter described battery saving mode state (S
x) operation.
5. the method for claim 1, is characterized in that, described RTC wake up parameter comprises:
For characterizing first parameter of whether enabling RTC waken system function;
For characterizing the second parameter of RTC waken system pattern;
For characterizing the 3rd parameter of RTC wakeup time.
6. method as claimed in claim 5, it is characterized in that, step (S3) comprising:
(S31) judge whether to start described RTC waken system function according to described first parameter;
(S32) if so, then judge described second parameter and described 3rd parameter whether effective;
(S33) under judged result is effective situation, by in the data register of storer described in described 3rd parameter read-in, and the control register arranging south bridge and described storer enters described normal operating conditions (S to make described operating system in the time execution that user sets
0) operation.
7. method as claimed in claim 6, it is characterized in that, step (S33) comprising:
(S331) at described battery saving mode state (S
x) in corresponding SMIHandler, remove the information about RTC waken system function in the status register of described storer, and by data register described in described 3rd parameter read-in that is stored in described interim core buffer, the control register of described south bridge and described storer is set;
(S332) described battery saving mode state (S is registered
x) corresponding SMIHandler;
(S333) guide described operating system to perform and enter described battery saving mode state (S
x) operation.
8. the method for claim 1, is characterized in that, described in store BIOS parameter storer and described in store computer starting information storer be CMOS chip or NVRAM.
9. a computing machine, comprises display and computer motherboard, and described computer motherboard is provided with BIOS, it is characterized in that, described BIOS can perform the method as described in any one of claim 1 ~ 8.
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| CN201510571669.0A CN105159722B (en) | 2015-09-10 | 2015-09-10 | RTC wakes up the method and computer of system |
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| CN107885534A (en) * | 2017-10-23 | 2018-04-06 | 深圳市金立通信设备有限公司 | A kind of screen locking method, terminal and computer-readable medium |
| CN108089689A (en) * | 2017-11-17 | 2018-05-29 | 珠海慧联科技有限公司 | A kind of small-sized SoC super low-power consumptions control circuit and method |
| CN109426526A (en) * | 2017-08-25 | 2019-03-05 | 展讯通信（上海）有限公司 | Interface wakes up synchronous method, interface equipment and computer-readable medium |
| CN110209430A (en) * | 2019-06-06 | 2019-09-06 | 深圳市智微智能科技开发有限公司 | It sends a telegram here again under a kind of G3 state the method for keeping RTC to wake up |
| CN111984333A (en) * | 2020-08-18 | 2020-11-24 | 山东超越数控电子股份有限公司 | Godson-based timing boot method, device and computer-readable storage medium |
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| CN109426526A (en) * | 2017-08-25 | 2019-03-05 | 展讯通信（上海）有限公司 | Interface wakes up synchronous method, interface equipment and computer-readable medium |
| CN109426526B (en) * | 2017-08-25 | 2021-08-17 | 展讯通信（上海）有限公司 | Interface wake-up synchronization method, interface device and computer readable medium |
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| CN111984333A (en) * | 2020-08-18 | 2020-11-24 | 山东超越数控电子股份有限公司 | Godson-based timing boot method, device and computer-readable storage medium |
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| Publication number | Publication date |
|---|---|
| CN105159722B (en) | 2018-08-17 |
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