CN102156528A - Data processing equipment and universal serial bus (USB) external connection driving method thereof - Google Patents
Data processing equipment and universal serial bus (USB) external connection driving method thereof Download PDFInfo
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- CN102156528A CN102156528A CN2010101120322A CN201010112032A CN102156528A CN 102156528 A CN102156528 A CN 102156528A CN 2010101120322 A CN2010101120322 A CN 2010101120322A CN 201010112032 A CN201010112032 A CN 201010112032A CN 102156528 A CN102156528 A CN 102156528A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention provides data processing equipment and a universal serial bus (USB) external connectiong driving method thereof. The data processing equipment comprises a USB interface, a switching module, a conversion module, a first detection module and a first control module, wherein the conversion module is used for converting USB bus data into PS/2 bus data; the first detection module is used for transmitting a first indication when preset USB equipment is detected to be connected with the USB interface; and the first control module is used for indicating the switching module to convert the USB interface to be connected with the conversion module after the first indication is received. By the data processing equipment and the USB external connection driving method thereof, power consumption loss can be reduced when the USB equipment is connected externally by a user, thereby ensuring the effective use time of the user.
Description
Technical field
The present invention relates to electronic applications, be specifically related to the method for a kind of data processing equipment and driving USB peripheral hardware thereof.
Background technology
In recent years along with energy-conservation standards such as " Energy Star " constantly occurs and upgrading, and the global Energy Star plan that has seven countries and regions to participate in Environmental Protection Agencies' promotion, be respectively the U.S., Canada, Japan, TaiWan, China, Australia, New Zealand, European Union.The energy-conservation necessary condition of being selected product of electronic equipment by global consumer's cognition, acceptance and conduct.
Each manufacturer making great efforts to reduce notebook use power consumption, is the power consumption that reduces built-in USB device such as USB card reader, USB network interface card etc. on the one hand all at present; And on the other hand, consider that external USB device also needs to reduce the power consumption of equipment such as USB mouse, keyboard to the influence of total system power consumption in the actual use of user.
Often be accustomed to extrapolation USB mouse such as the user and use, the use of USB mouse in this case can cause the increase of the power consumption certain amplitude of system, causes about 20% power consumption penalty.By the actual experiment data in the table 1 just as can be seen, the user uses the circumscribed USB mouse to cause the loss of system power dissipation.
Table 1, power comparison sheet
Data from table 1 are as can be seen: when circumscribed USB mouse and PS/2 keyboard, average power consumption meets the big 2.44w of PS/2 keyboard power consumption than only, reaches 17.3% power consumption penalty; Meet PS/2KBD and circumscribed USB device not and compare, the power consumption basically identical has only the gap of 0.1w.
Usually the technical scheme that adopts is the support that increases USB selective suspend (selectivity hang-up) at present.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
Even under selective suspend pattern, the still polling that can be interrupted (detect in turn), thus cause the system power dissipation loss;
In addition, circumscribed USB mouse, keyboard etc. are of a great variety, and the user can arbitrarily buy voluntarily, can not guarantee that mouse that all users use, keyboard etc. can support selective suspend function.
Summary of the invention
The technical problem to be solved in the present invention provides the method for a kind of data processing equipment and driving USB peripheral hardware thereof, the loss of power consumption when reducing user's circumscribed USB equipment, thereby assurance user's effective storage life.
In order to address the above problem, the invention provides a kind of data processing equipment, comprising: USB interface; Also comprise: handover module;
Modular converter is used for the usb bus data are converted to the PS/2 bus data;
First detection module is used for sending first indication when detecting default USB device when linking to each other with described USB interface;
First control module is used for indicating described handover module that described USB interface is converted to described modular converter and linking to each other after receiving described first indication.
Further, described modular converter is initially dormant state or closed condition;
Described first control module is waken up after receiving described first indication or is started described modular converter.
Further, described data processing equipment also comprises:
Second detection module is used for sending second indication when detecting the disconnection of described USB device and described USB interface;
Second control module is used for indicating described modular converter dormancy or close after receiving described second indication.
Further, described data processing equipment also comprises:
The integrated PCH of platform controller;
Described handover module specifically comprises:
First interface links to each other with described PCH;
Second interface links to each other with described modular converter;
The 3rd interface links to each other with described USB interface;
Change-over switch is used for first, second interface one and links to each other with the 3rd interface;
Described first control module is indicated described handover module that described USB interface is converted to link to each other with described modular converter and is meant:
Described first control module indicates the change-over switch in the described handover module that described the 3rd interface is linked to each other from linking to each other with described first interface to switch to described second interface.
Further, described data processing equipment also comprises:
Second detection module is used for sending second indication when detecting the disconnection of described USB device and described USB interface;
Second control module, the change-over switch that is used for the described handover module of indication after receiving described second indication links to each other described the 3rd interface from linking to each other with described second interface to switch to described first interface.
The present invention also provides a kind of data processing equipment to drive the method for USB peripheral hardware, and described data processing equipment comprises USB interface; Described data processing equipment also comprises modular converter;
Described method comprises:
When having detected USB device when linking to each other, produce one first indication with described USB interface;
The USB interface that will connect this USB device according to this first indication links to each other with described modular converter;
Described modular converter is converted to the PS/2 bus data with described USB device by the usb bus data that described USB interface sends.
Further, described modular converter is initially dormant state or closed condition;
Described method also comprises: wake up or start described modular converter according to described first indication.
Further, described method also comprises:
When detecting the disconnection of described USB device and described USB interface, produce one second indication;
According to described second indication with described modular converter dormancy or close.
Further, described data processing equipment also comprises:
The integrated PCH of platform controller;
The described USB interface that will connect this USB device specifically comprises with the step that described modular converter links to each other:
Being connected between the USB interface that disconnect to connect this USB device and the described PCH;
The USB interface that connects this USB device is linked to each other with described modular converter.
Further, described method also comprises:
According to described second indication described USB interface converted to described PCH and to link to each other.
One embodiment of the present of invention comprise following advantage at least: under the situation of USB device such as the random circumscribed USB mouse of user, keyboard, keep the power consumption of system can not cause loss owing to the interference of circumscribed USB equipment; Another embodiment of the present invention comprises following advantage at least: can will be used to carry out the part that usb bus data and PS/2 bus data change mutually and close or make its dormancy when not using, to reach the purpose of further economize on electricity.
Description of drawings
Fig. 1 is the schematic block diagram of data processing equipment among the embodiment one;
Fig. 2 is the schematic block diagram of the handover module of data processing equipment among the embodiment one;
Fig. 3 is the schematic block diagram of notebook computer among the embodiment two;
Fig. 4 is the schematic flow sheet that notebook computer drives the USB peripheral hardware among the embodiment two.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
Embodiment one, and a kind of data processing equipment as shown in Figure 1, comprising:
USB interface, handover module;
Modular converter is used for the usb bus data are converted to the PS/2 bus data;
First detection module is used for sending first indication when detecting default USB device when linking to each other with described USB interface;
First control module is used for indicating described handover module that described USB interface is converted to described modular converter and linking to each other after receiving described first indication.
In the present embodiment, described USB interface can be for one or more; Described USB device can but be not limited to USB mouse and/or USB keyboard; Can also set the type of the USB device that will switch in the practical application according to actual conditions, described first detection module has only when the USB device that is connected to USB interface is the type that sets, and just sends described first indication.
In the present embodiment, in the described data processing equipment, can receive the PS/2 bus data that described modular converter is converted to and carry out respective handling by the processing module that originally was used to handle the PS/2 bus data or other module that can handle the PS/2 bus data, can also feed back the PS/2 bus data; The PS/2 bus data that described modular converter will feed back to described USB device is converted to the usb bus data, sends to described USB device by described USB interface.
In the present embodiment, described modular converter initially can be dormant state or closed condition; Described first control module is waken up after receiving described first indication or is started described modular converter.
In the present embodiment, described data processing equipment also comprises:
PCH (Platform Controller Hub, platform controller is integrated) is the integrated south bridge of Intel Company, is used to drive the USB peripheral hardware that connects on the USB interface.
In the present embodiment, described handover module specifically can comprise:
First interface links to each other with described PCH;
Second interface links to each other with described modular converter;
The 3rd interface links to each other with described USB interface;
Change-over switch is used for first, second interface one and links to each other with the 3rd interface.
Described first control module indicates described handover module that described USB interface is converted to described modular converter to link to each other and can be meant:
Described first control module indicates the change-over switch in the described handover module that described the 3rd interface is linked to each other from linking to each other with described first interface to switch to described second interface; Just the usb bus data forwarding that described USB interface is sent will be given described USB interface from the usb bus data forwarding that described modular converter receives to described modular converter.
Comprise a USB controller among the described PCH, when receiving USB device---during the incident that produces such as the USB mouse, can handle by the wake up process device, because the USB mouse can periodically produce invalid event at one's leisure, therefore will cause processor constantly to be waken up, and cause the loss of system power dissipation, present embodiment then can be avoided this situation, the invalid event that described USB device produced can not be passed to the USB controller and cause processor constantly to be waken up, thereby saves system power dissipation.
In an embodiment of the present embodiment, described data processing equipment can also comprise:
Second detection module is used for sending second indication when detecting the disconnection of described USB device and described USB interface;
Second control module, being used for indicating described handover module that described USB interface is converted to described PCH after receiving described second indication links to each other, that is: indicates the change-over switch in the described handover module that described the 3rd interface is linked to each other from linking to each other with described second interface to switch to described first interface.
Described second control module can also be worked as and receives the described described modular converter dormancy of the second indication back indication or close, to reach the purpose of further economize on electricity.
In the present embodiment, described the first/the second/the 3rd interface can but be not limited to link to each other with described PCH/ modular converter/USB interface by usb bus; Described modular converter can but be not limited to link to each other with described first, second control module by the PS/2 bus.
In the present embodiment, described first, second control module can but be not limited to indicate described handover module/modular converter by GPIO (general input and output).
In the another kind of embodiment of present embodiment, described first detection module can also be used for after detecting described USB device and described USB interface links to each other, before sending described first indication, earlier judge whether the 3rd interface described in the described handover module links to each other with described first interface, if then send described first indication, otherwise do not handle.
In this embodiment, described data processing equipment also comprises:
Second detection module is used for judging whether the 3rd interface described in the described handover module links to each other with described first interface, if then do not handle when detecting the USB device that links to each other with described USB interface when not being the type that will switch that sets; Otherwise send second indication;
Second control module is used for indicating described handover module that described USB interface is converted to described PCH and linking to each other after receiving described second indication.
Described second control module can also be used for indicating described modular converter dormancy or close after receiving described second indication, to reach the purpose of further economize on electricity.
If during the USB device of the basic type that only will switch with setting of computer, all go when using this embodiment then not need to plug USB device to switch at every turn, but can keep USB interface is connected on the PS/2 bus, when not being the type that will switch, the USB device that connects again USB interface is not connected back on the usb bus.
Embodiment two, and a kind of notebook computer as shown in Figure 3, comprising: PCH;
Two USB interface are used for connecting described notebook computer for peripheral hardware;
Respectively with described two power switches that USB interface connects one to one,
First, second control module is embedded controller EC in the present embodiment;
First, second, third usb bus;
The PS/2 bus;
Modular converter is USB to PS/2 signal switch (USB is to the switch of PS/2 signal) in the present embodiment, links to each other with described embedded controller EC by described PS/2 bus;
Handover module, in the present embodiment USB signal switch (usb signal switch), link to each other with described PCH by described first usb bus, link to each other with described modular converter, link to each other with described USB interface by described the 3rd usb bus by described second usb bus; When original state, described the first, the 3rd usb bus is linked to each other;
First, second detection module can be OS (operating system) or BIOS (BasicInput Output System, Basic Input or Output System (BIOS)) in the present embodiment;
In the present embodiment, the type of the USB device that setting will be switched comprises USB mouse and USB keyboard.
In the present embodiment, the method for this notebook computer driving USB peripheral hardware comprises as shown in Figure 4:
101, the USB peripheral hardware inserts any in described two USB interface;
102, described OS/BIOS judges whether this USB peripheral hardware is USB mouse or USB keyboard; If then carry out step 103; Otherwise carry out step 109;
103, described OS/BIOS transmission first indication notifies described EC to carry out the signal switching;
104, after EC receives described first indication, notify described USB signal switch to switch to second usb bus by universal input/output interface GPIO (general input and output) from first usb bus, start USB to PS/2 signal switch simultaneously, finish the conversion between usb bus data and the PS/2 bus data; EC operation PS/2 drives;
105, EC enables described USB interface; This step can be before above arbitrary steps, carry out afterwards or simultaneously;
106, USB mouse or keyboard work;
107, when USB mouse or keyboard are extracted, BIOS sends the second indication notice EC to carry out signal and switches;
108, after EC receives described second indication, switch to first usb bus from second usb bus, stop described USB to PS/2 signal switch simultaneously by GPIO notice USB signal switch.
Situation when 109, EC inserts according to the prior USB peripheral hardware is handled;
Embodiment three, and a kind of data processing equipment drives the method for USB peripheral hardware, and described data processing equipment comprises modular converter and USB interface;
Described method comprises:
When having detected USB device when linking to each other, produce one first indication with described USB interface;
The USB interface that will connect this USB device according to this first indication links to each other with described modular converter;
Described modular converter is converted to the PS/2 bus data with described USB device by the usb bus data that described USB interface sends.
In the present embodiment, described USB interface can be for one or more; Described default USB device can but be not limited to USB mouse and/or USB keyboard; Can set the type of the USB device that will switch in the practical application according to actual conditions, have only, just produce described first and indicate when detecting the USB device that is connected to USB interface when being the type that sets.
In the present embodiment, described method can also comprise: receive the PS/2 bus data that described modular converter is converted to and carry out respective handling, can also feed back the PS/2 bus data; The PS/2 bus data that described modular converter will feed back to described USB device is converted to the usb bus data, sends to described USB device by described USB interface.
In the present embodiment, described modular converter initially can be dormant state or closed condition; Described method can also comprise: wake up or start described modular converter according to described first indication.
In the present embodiment, described data processing equipment also comprises:
PCH (Platform Controller Hub, platform controller is integrated) is the integrated south bridge of Intel Company, is used to drive the USB peripheral hardware that connects on the USB interface.
In the present embodiment, the step that the described USB interface that will connect this USB device links to each other with described modular converter specifically can comprise:
Being connected between the USB interface that disconnect to connect this USB device and the described PCH;
The USB interface that connects this USB device is linked to each other with described modular converter.
In an embodiment of the present embodiment, described method can also comprise:
When detecting the disconnection of described USB device and described USB interface, produce one second indication;
According to described second indication described USB interface converted to described PCH and to link to each other.
Can further include: according to described second indication with described modular converter dormancy or close, to reach the purpose of further economize on electricity.
In the another kind of embodiment of present embodiment, described detect described USB device and step that described USB interface links to each other after, can also comprise before producing the step of one first indication:
Earlier judge whether described USB interface links to each other with described PCH,, otherwise do not handle if then produce first indication.
In this embodiment, described method can also comprise:
When detecting the USB device that links to each other with described USB interface when not being the type that will switch that sets, judge whether described USB interface links to each other with described PCH, if then do not handle; Otherwise produce one second indication; According to described second indication described USB interface converted to described PCH and to link to each other.
Can further include: according to described second indication with described modular converter dormancy or close, to reach the purpose of further economize on electricity.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of claim of the present invention.
Claims (10)
1. a data processing equipment comprises: USB interface; It is characterized in that, also comprise:
Handover module;
Modular converter is used for the usb bus data are converted to the PS/2 bus data;
First detection module is used for sending first indication when detecting default USB device when linking to each other with described USB interface;
First control module is used for indicating described handover module that described USB interface is converted to described modular converter and linking to each other after receiving described first indication.
2. data processing equipment as claimed in claim 1 is characterized in that:
Described modular converter is initially dormant state or closed condition;
Described first control module is waken up after receiving described first indication or is started described modular converter.
3. data processing equipment as claimed in claim 1 or 2 is characterized in that, also comprises:
Second detection module is used for sending second indication when detecting the disconnection of described USB device and described USB interface;
Second control module is used for indicating described modular converter dormancy or close after receiving described second indication.
4. data processing equipment as claimed in claim 1 or 2 is characterized in that, described data processing equipment also comprises:
The integrated PCH of platform controller;
Described handover module specifically comprises:
First interface links to each other with described PCH;
Second interface links to each other with described modular converter;
The 3rd interface links to each other with described USB interface;
Change-over switch is used for first, second interface one and links to each other with the 3rd interface;
Described first control module is indicated described handover module that described USB interface is converted to link to each other with described modular converter and is meant:
Described first control module indicates the change-over switch in the described handover module that described the 3rd interface is linked to each other from linking to each other with described first interface to switch to described second interface.
5. data processing equipment as claimed in claim 4 is characterized in that, also comprises:
Second detection module is used for sending second indication when detecting the disconnection of described USB device and described USB interface;
Second control module, the change-over switch that is used for the described handover module of indication after receiving described second indication links to each other described the 3rd interface from linking to each other with described second interface to switch to described first interface.
6. a data processing equipment drives the method for USB peripheral hardware, and described data processing equipment comprises USB interface; It is characterized in that:
Described data processing equipment also comprises modular converter;
Described method comprises:
When having detected USB device when linking to each other, produce one first indication with described USB interface;
The USB interface that will connect this USB device according to this first indication links to each other with described modular converter;
Described modular converter is converted to the PS/2 bus data with described USB device by the usb bus data that described USB interface sends.
7. method as claimed in claim 6 is characterized in that:
Described modular converter is initially dormant state or closed condition;
Described method also comprises: wake up or start described modular converter according to described first indication.
8. as claim 6 or 7 described methods, it is characterized in that, also comprise:
When detecting the disconnection of described USB device and described USB interface, produce one second indication;
According to described second indication with described modular converter dormancy or close.
9. as claim 6 or 7 described methods, it is characterized in that:
Described data processing equipment also comprises:
The integrated PCH of platform controller;
The described USB interface that will connect this USB device specifically comprises with the step that described modular converter links to each other:
Being connected between the USB interface that disconnect to connect this USB device and the described PCH;
The USB interface that connects this USB device is linked to each other with described modular converter.
10. method as claimed in claim 9 is characterized in that, also comprises:
According to described second indication described USB interface converted to described PCH and to link to each other.
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| CN2010101120322A CN102156528A (en) | 2010-02-11 | 2010-02-11 | Data processing equipment and universal serial bus (USB) external connection driving method thereof |
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| CN2010101120322A CN102156528A (en) | 2010-02-11 | 2010-02-11 | Data processing equipment and universal serial bus (USB) external connection driving method thereof |
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| CN103593317A (en) * | 2013-11-25 | 2014-02-19 | 浪潮电子信息产业股份有限公司 | USB switching method based on NUMA computer architecture |
| CN103631750A (en) * | 2012-08-29 | 2014-03-12 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN105744606A (en) * | 2016-04-01 | 2016-07-06 | 努比亚技术有限公司 | User equipment and sleep waking method |
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Application publication date: 20110817 |