CN108184085A - A kind of MIPI turns the method and system of the data conversion of HDMI - Google Patents
A kind of MIPI turns the method and system of the data conversion of HDMI Download PDFInfo
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- CN108184085A CN108184085A CN201711490425.5A CN201711490425A CN108184085A CN 108184085 A CN108184085 A CN 108184085A CN 201711490425 A CN201711490425 A CN 201711490425A CN 108184085 A CN108184085 A CN 108184085A
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- mipi
- hdmi
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- signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0125—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards being a high definition standard
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Turn the method and system of the data conversion of HDMI the embodiment of the invention discloses a kind of MIPI.A kind of method that MIPI turns the data conversion of HDMI includes:The Android intelligent equipment for being configured with MIPI turns the resetting pin output enabling signal of HDMI chips to MIPI connected to it;Wherein, the enabling signal is used to that the MIPI to be activated to turn HDMI chips to working condition;The Android intelligent equipment turns the video flowing of the HOST MIPI ends output synchronous event of HDMI chips and continuous clock signal with Non Burst patterns to the MIPI;The MIPI turns the signal that the video flowing of the synchronous event is converted into preset format by HDMI chips;The MIPI turns HDMI chips the signal of the preset format is converted to HDMI signals to be sent to the coupled receiving device for being configured with HDMI.The technical solution realization of embodiment is conveniently configured with the terminal of MIPI to the terminal transmission data for being configured with HDMI.
Description
Technical field
Turn the present embodiments relate to video interface technology more particularly to a kind of MIPI the data conversion of HDMI method and
System.
Background technology
In multimedia video interfacing, the interface of screen is very more, common to be connect including high-definition multimedia
Mouth (High Definition Multimedia Interface, HDMI), VGA (Video Graphics Array) and shifting
The interfaces such as dynamic Industry Processor Interface (Mobile Industry Processor Interface, MIPI).Wherein, in Android
(Android) in mobile equipment, mostly using MIPI.
MIPI is the alliance set up by companies such as ARM, Nokia, ST and TI in 2003, it is therefore an objective to interior of mobile phone
The interface such as standardization such as camera, display screen interface, radio frequency/baseband interface, so as to reduce the complexity of Cell Phone Design and increasing
Add design flexibility.There is different WorkGroup below MIPI alliances, respectively define a series of interior of mobile phone interface mark
Standard, such as utilizing camera interface CSI, display interface DSI, radio frequency interface DigRF, microphone/horn interface SLIMbus etc..
HDMI is the abbreviation of (High Definition Multimedia Interface), means the more matchmakers of fine definition
Body interface is a kind of digitized video/audio interface technology, is suitble to the tailored version digital interface of image transmission, can pass simultaneously
Audio and video signal are sent, the maximum data transmission speed is 18Gbps (2.0 editions).
Simultaneously without transmitting advance row D/A or analog/digital conversion in signal.HDMI can arrange in pairs or groups broadband digital content guarantor
Shield, with the video content that prevents that there is copyright by unwarranted duplication.
The exceptional space that HDMI has can be applicable in the audio and video form upgraded in the future.
And because the video of 1080p and the audio signal demand of 8 sound channels less than 0.5GB/s, therefore HDMI is also
There is very big surplus.This allows it that can connect DVD player, receiver and PRR respectively with a cable.
Invention content
The embodiment of the present invention provides the method and system that a kind of MIPI turns the data conversion of HDMI, to realize the number of MIPI
According to the data for being converted into HDMI.
In a first aspect, an embodiment of the present invention provides the data transfer device that a kind of MIPI turns HDMI, including:
The Android intelligent equipment for being configured with MIPI turns the resetting pin output startup letter of HDMI chips to MIPI connected to it
Number;Wherein, the enabling signal is used to that the MIPI to be activated to turn HDMI chips to working condition;
The HOST MIPI ends that the Android intelligent equipment turns HDMI chips with Non-Burst patterns to the MIPI export
The video flowing of synchronous event and continuous clock signal;
The MIPI turns the signal that the video flowing of the synchronous event is converted into preset format by HDMI chips;
The MIPI turn HDMI chips by the signal of the preset format be converted to HDMI signals be sent to it is coupled
It is configured with the receiving device of HDMI.
Optionally, the signal of the preset format includes the signal of R/G/B/HS/VS/DE.
Optionally, the Android intelligent equipment includes the chip of model qualcomm msm8909 as central processing
Device.
Optionally, turn the reset of HDMI chips to MIPI connected to it in the Android intelligent equipment for being configured with MIPI
Before foot output enabling signal, further include:
In the DTS management equipment trees of the chip of the qualcomm msm8909, application universal input output pin is made
To be used to that the MIPI to be controlled to turn the reset pin of HDMI chip operation states, and define the reset pin default conditions and
Dormant state;
The MIPI is created in the DTS management equipment trees of the chip of the qualcomm msm8909 and turns HDMI conversion cores
The device node of piece, and define corresponding activation bit.
Optionally, turn the reset of HDMI chips to MIPI connected to it in the Android intelligent equipment for being configured with MIPI
After foot output enabling signal, further include:
Default register configuration is sent to the MIPI by I2C interface and turns HDMI chips by the Android intelligent equipment,
So that the MIPI turns HDMI chips and completes data initialization.
Second aspect, the embodiment of the present invention additionally provide the data conversion system that a kind of MIPI turns HDMI, including:
The Android intelligent equipment of MIPI is configured with, MIPI turns HDMI chips and is configured with the receiving device of HDMI;
The MIPI that the MIPI of the Android intelligent equipment turns HDMI chips with the MIPI is connected, for connected to it
MIPI turns the resetting pin output enabling signal of HDMI chips;Wherein, the enabling signal is used to that the MIPI to be activated to turn HDMI cores
Piece is to working condition;Turn regarding for the HOST MIPI ends output synchronous event of HDMI chips to the MIPI with Non-Burst patterns
Frequency stream and continuous clock signal;
The HDMI that the MIPI turns HDMI chips is connected with the HDMI of the receiving device, for by the synchronous event
Video flowing is converted into the signal of preset format;By the signal of the preset format be converted to HDMI signals be sent to it is coupled
It is configured with the receiving device of HDMI.
Optionally, the signal of the preset format includes the signal of R/G/B/HS/VS/DE.
Optionally, the Android intelligent equipment includes the chip of model qualcomm msm8909 as central processing
Device.
Optionally, the Android intelligent equipment is additionally operable to:
Before the resetting pin output enabling signal for turning HDMI chips to MIPI connected to it, in the qualcomm
In the DTS management equipment trees of the chip of msm8909, application universal input output pin is used as that the MIPI is controlled to turn HDMI
The reset pin of chip operation state, and define the default conditions and dormant state of the reset pin;In the qualcomm
The device node that the MIPI turns HDMI conversion chips is created in the DTS management equipment trees of the chip of msm8909, and is defined corresponding
Activation bit.
Optionally, the Android intelligent equipment is additionally operable to:
Turn the resetting pin output of HDMI chips to MIPI connected to it in the Android intelligent equipment for being configured with MIPI
After enabling signal, default register configuration is sent to by the MIPI by I2C interface and turns HDMI chips, so that the MIPI
Turn HDMI chips and complete data initialization.
The embodiment of the present invention turns HDMI chips by MIPI and MIPI data is converted to HDMI data, solves the prior art only
There is the problem of carrying out data transmission between similar interface, realize that the terminal for being conveniently configured with MIPI is passed to the terminal for being configured with HDMI
The effect of transmission of data.
Description of the drawings
Fig. 1 is the flow chart for the data transfer device that a kind of MIPI in the embodiment of the present invention one turns HDMI;
Fig. 2 is the flow chart for the data transfer device that a kind of MIPI in the embodiment of the present invention two turns HDMI;
Fig. 3 is the structure diagram for the data conversion system that a kind of MIPI in the embodiment of the present invention three turns HDMI.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrated only in description, attached drawing.
Embodiment one
Fig. 1 turns the flow chart of the data transfer device of HDMI, this implementation for a kind of MIPI that the embodiment of the present invention one provides
Example is applicable to be configured with the terminal of MIPI to the situation for the terminal transmission data for being configured with HDMI, and this method can be turned by MIPI
The data conversion system of HDMI performs, which includes being configured with the Android intelligent equipment of MIPI, MIPI turns HDMI chips and
It is configured with the receiving device of HDMI.The data transfer device that MIPI turns HDMI specifically comprises the following steps:
Step 110, be configured with MIPI Android intelligent equipment turn to MIPI connected to it HDMI chips resetting pin it is defeated
Go out enabling signal;Wherein, the enabling signal is used to that the MIPI to be activated to turn HDMI chips to working condition;Optionally, it is described
Android intelligent equipment includes the chip of model qualcomm msm8909 as central processing unit.Android intelligent equipment passes through
The resetting pin that the universal input output pin of qualcomm msm8909 chips turns HDMI chips to MIPI exports enabling signal.
Step 120, the Android intelligent equipment turn the HOST of HDMI chips with Non-Burst patterns to the MIPI
The video flowing of MIPI ends output synchronous event and continuous clock signal;Optionally, the signal of the preset format includes R/
The signal of G/B/HS/VS/DE.
Step 130, the MIPI turn the signal that the video flowing of the synchronous event is converted into preset format by HDMI chips;
Step 140, the MIPI turn HDMI chips by the signal of the preset format be converted to HDMI signals be sent to
Its connected receiving device for being configured with HDMI.
Optionally, turn the reset of HDMI chips to MIPI connected to it in the Android intelligent equipment for being configured with MIPI
Before foot output enabling signal, further include:
In the DTS management equipment trees of the chip of the qualcomm msm8909, application universal input output pin is made
To be used to that the MIPI to be controlled to turn the reset pin of HDMI chip operation states, and define the reset pin default conditions and
Dormant state;
The MIPI is created in the DTS management equipment trees of the chip of the qualcomm msm8909 and turns HDMI conversion cores
The device node of piece, and define corresponding activation bit.
It is exemplary, management equipment tree that qualcomm msm8909&android L versions use (device tree,
DTS), including GPIO.So we apply for a reset GPIO port first in msm8909-pinctrl.dtsi
Gpio14, and define the default conditions and dormant state of port.And be added to MIPI and turn in HDMI chipsets, in msm8909-
MIPI is created inside qrd-skui.dtsi and turns HDMI chipset nodes.
The compatible for having turned defined in the device node of HDMI chips the equipment in MIPI should be with the id_ of driving
Table matches, could probe equipment.It is i2c_0 to also define the I2C adapter that the node uses, and the acquiescence of equipment
Address is reg=<0x48>, reset feet are the information such as GPIO14.
The display of qualcomm uses some parameters of dtsi file configurations mipi-dsi and panel.Turn from MIPI
It is found that its DSI semaphore request in the spec of HDMI chips:non-burst mode(continue mode)Video mode,
sync event,MIPI DSI.
The technical solution of the present embodiment turns HDMI chips by MIPI and MIPI data is converted to HDMI data, solves existing
There is technology there was only the problem of carrying out data transmission between similar interface, realize and be conveniently configured with the terminal of MIPI to being configured with HDMI
Terminal transmission data effect.
Embodiment two
Fig. 2 turns the flow chart of the data transfer device of HDMI, this implementation for a kind of MIPI provided by Embodiment 2 of the present invention
The technical solution of example further refines based on the above technical solution, and this method includes:
Step 210, be configured with MIPI Android intelligent equipment turn to MIPI connected to it HDMI chips resetting pin it is defeated
Go out enabling signal.
Default register configuration is sent to the MIPI by I2C interface and turned by step 220, the Android intelligent equipment
HDMI chips, so that the MIPI turns HDMI chips and completes data initialization.
Step 230, the Android intelligent equipment turn the HOST of HDMI chips with Non-Burst patterns to the MIPI
The video flowing of MIPI ends output synchronous event and continuous clock signal.
Step 240, the MIPI turn the signal that the video flowing of the synchronous event is converted into preset format by HDMI chips.
Step 250, the MIPI turn HDMI chips by the signal of the preset format be converted to HDMI signals be sent to
Its connected receiving device for being configured with HDMI.
Driving flow is to obtain chip register configuration instruction first, passes through application processor (Application
Processor, AP), i.e. the chip of qualcomm msm8909 turns HDMI chip resets foot in MIPI and generates a drop-down 150
The signal of millisecond, then drawing high makes chip operation.Then by the I2C interface at AP ends technical support engineer (field
Application engineer, FAE) configuration given is sent in chip.After the completion of configuration, need in configuration HOST MIPI
End output Non-Burst patterns, the video flowing (video steam) of synchronous event (sync events) and continuous clock
Signal.MIPI turns HDMI chips can be obtained the signal that r/g/b/hs/vs/de is converted into after these data packets by DSI ends, converted
It is sent on HDMI controllers and sends into HDMI signals.
It should be noted that there is the situation of power down when wake-up MIPI turns HDMI chips in system suspend mode in order to prevent,
It also needs to turn MIPI HDMI chips when wake-up to reset again, be brushed by I2C into initialization data.
The technical solution of the present embodiment is brushed by I2C into initialization data, wake up MIPI turn HDMI chips when pair
MIPI turns HDMI chips and resets again, realizes that anti-locking system suspend mode when wake-up MIPI turns HDMI chips, the situation of power down occurs.
Embodiment three
Fig. 3 is the structure diagram for the data conversion system that a kind of MIPI that the embodiment of the present invention three provides turns HDMI, such as
Shown in Fig. 3, the data conversion system that MIPI turns HDMI includes:
The Android intelligent equipment 310 of MIPI is configured with, MIPI turns HDMI chips 320 and is configured with the receiving device of HDMI
330;
The MIPI that the MIPI of the Android intelligent equipment 310 turns HDMI chips 320 with the MIPI is connected, for its
The MIPI of connection turns the resetting pin output enabling signal of HDMI chips 320;Wherein, the enabling signal is used to activate the MIPI
Turn HDMI chips to working condition;The HOST MIPI ends for turning HDMI chips 320 to the MIPI with Non-Burst patterns export
The video flowing of synchronous event and continuous clock signal;
The HDMI that the MIPI turns HDMI chips 320 is connected with the HDMI of the receiving device 330, for by the synchronization
The video flowing of event is converted into the signal of preset format;By the signal of the preset format be converted to HDMI signals be sent to and its
The connected receiving device 330 for being configured with HDMI.
Optionally, the signal of the preset format includes the signal of R/G/B/HS/VS/DE.
Optionally, the Android intelligent equipment 310 includes the chip of model qualcomm msm8909 as centre
Manage device.
Optionally, the Android intelligent equipment 310 is additionally operable to:
Before the resetting pin output enabling signal for turning HDMI chips to MIPI connected to it, in the qualcomm
In the DTS management equipment trees of the chip of msm8909, application universal input output pin is used as that the MIPI is controlled to turn HDMI
The reset pin of chip operation state, and define the default conditions and dormant state of the reset pin;In the qualcomm
The device node that the MIPI turns HDMI conversion chips is created in the DTS management equipment trees of the chip of msm8909, and is defined corresponding
Activation bit.
Optionally, the Android intelligent equipment 310 is additionally operable to:
Turn the resetting pin output of HDMI chips to MIPI connected to it in the Android intelligent equipment for being configured with MIPI
After enabling signal, default register configuration is sent to by the MIPI by I2C interface and turns HDMI chips, so that the MIPI
Turn HDMI chips and complete data initialization.
The technical solution of the present embodiment turns HDMI chips by MIPI and MIPI data is converted to HDMI data, solves existing
There is technology there was only the problem of carrying out data transmission between similar interface, realize and be conveniently configured with the terminal of MIPI to being configured with HDMI
Terminal transmission data effect.
The said goods can perform the method that any embodiment of the present invention is provided, and have the corresponding function module of execution method
And advantageous effect.
Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiment described here, can carry out for a person skilled in the art various apparent variations,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
It can include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of MIPI turns the data transfer device of HDMI, which is characterized in that including:
The Android intelligent equipment for being configured with MIPI turns the resetting pin output enabling signal of HDMI chips to MIPI connected to it;Its
In, the enabling signal is used to that the MIPI to be activated to turn HDMI chips to working condition;
The HOST MIPI ends that the Android intelligent equipment turns HDMI chips with Non-Burst patterns to the MIPI export synchronization
The video flowing of event and continuous clock signal;
The MIPI turns the signal that the video flowing of the synchronous event is converted into preset format by HDMI chips;
The MIPI turns HDMI chips the signal of the preset format is converted to HDMI signals to be sent to coupled configuration
There is the receiving device of HDMI.
2. according to the method described in claim 1, it is characterized in that, the signal of the preset format includes R/G/B/HS/VS/DE
Signal.
3. according to the method described in claim 1, it is characterized in that, the Android intelligent equipment includes model qualcomm
The chip of msm8909 is as central processing unit.
4. according to the method described in claim 3, it is characterized in that, the Android intelligent equipment for being configured with MIPI to its
Before the MIPI of connection turns the resetting pin output enabling signal of HDMI chips, further include:
In the DTS management equipment trees of the chip of the qualcomm msm8909, application universal input output pin is as use
Turn the reset pin of HDMI chip operation states, and define default conditions and the suspend mode of the reset pin in controlling the MIPI
State;
The MIPI, which is created, in the DTS management equipment trees of the chip of the qualcomm msm8909 turns HDMI conversion chips
Device node, and define corresponding activation bit.
5. according to the method described in claim 1, it is characterized in that, the Android intelligent equipment for being configured with MIPI to its
After the MIPI of connection turns the resetting pin output enabling signal of HDMI chips, further include:
Default register configuration is sent to the MIPI by I2C interface and turns HDMI chips by the Android intelligent equipment, so that
The MIPI turns HDMI chips and completes data initialization.
6. a kind of MIPI turns the data conversion system of HDMI, which is characterized in that including:
The Android intelligent equipment of MIPI is configured with, MIPI turns HDMI chips and is configured with the receiving device of HDMI;
The MIPI that the MIPI of the Android intelligent equipment turns HDMI chips with the MIPI is connected, for MIPI connected to it
Turn the resetting pin output enabling signal of HDMI chips;Wherein, the enabling signal is used to that the MIPI to be activated to turn HDMI chips extremely
Working condition;Turn the video flowing of the HOST MIPI ends output synchronous event of HDMI chips to the MIPI with Non-Burst patterns
And continuous clock signal;
The HDMI that the MIPI turns HDMI chips is connected with the HDMI of the receiving device, for by the video of the synchronous event
Circulation changes the signal of preset format into;The signal of the preset format is converted into HDMI signals and is sent to coupled configuration
There is the receiving device of HDMI.
7. system according to claim 6, which is characterized in that the signal of the preset format includes R/G/B/HS/VS/DE
Signal.
8. system according to claim 6, which is characterized in that the Android intelligent equipment includes model qualcomm
The chip of msm8909 is as central processing unit.
9. system according to claim 8, which is characterized in that the Android intelligent equipment is additionally operable to:
Before the resetting pin output enabling signal for turning HDMI chips to MIPI connected to it, in the qualcomm
In the DTS management equipment trees of the chip of msm8909, application universal input output pin is used as that the MIPI is controlled to turn HDMI
The reset pin of chip operation state, and define the default conditions and dormant state of the reset pin;In the qualcomm
The device node that the MIPI turns HDMI conversion chips is created in the DTS management equipment trees of the chip of msm8909, and is defined corresponding
Activation bit.
10. system according to claim 6, which is characterized in that the Android intelligent equipment is additionally operable to:
Turn the resetting pin output startup of HDMI chips to MIPI connected to it in the Android intelligent equipment for being configured with MIPI
After signal, default register configuration is sent to by the MIPI by I2C interface and turns HDMI chips, so that the MIPI turns
HDMI chips complete data initialization.
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CN201711490425.5A CN108184085B (en) | 2017-12-30 | 2017-12-30 | Method and system for converting MIPI (Mobile industry processor interface) to HDMI (high-definition multimedia interface) data |
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CN201711490425.5A CN108184085B (en) | 2017-12-30 | 2017-12-30 | Method and system for converting MIPI (Mobile industry processor interface) to HDMI (high-definition multimedia interface) data |
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