JP2003099262A - Host device and compatible device registering method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily connect a compatible device by a plug-and-play function without rewriting internal control software. SOLUTION: When the new compatible device 200 which operates through application software stored in a host device 100 is connected to the host device 100, the device is placed in a registration mode and the ID intrinsic to the compatible device is registered in a compatible ID storage device 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a host device (excluding a personal computer) incorporating a microcomputer for connecting a plurality of device devices by USB with a plug-and-play function, and more particularly to a USB device for the host device. The present invention relates to a compatible device registration method that enables USB connection of a device device compatible with a device device that can be connected using.

[0002]

2. Description of the Related Art Recently, a personal computer (hereinafter referred to as a personal computer) uses a USB as a peripheral device (USB
Device) can be easily connected by the plug and play function. The USB device can be attached / detached while the power of the PC is turned on, and when the USB device is connected, the U
SB device control software (driver program, etc.) is selected so that the USB device can be used immediately.

Here, the plug-and-play function means that the personal computer recognizes various peripheral devices connected to the personal computer, and a program for controlling the connected peripheral devices is installed in the personal computer, and a corresponding device driver program is stored in the personal computer. This is a technology that enables it to be used from the OS.

Such a USB connection interface is incorporated in an information terminal other than a personal computer and an electronic device (hereinafter referred to as a host device) incorporating a microcomputer used at home (hereinafter referred to as a host device), and a USB is used for these host devices. Peripheral devices have become easier to connect.

[0005]

By the way, the above-mentioned host device is a floppy (registered trademark) disk or a CD-ROM.
It does not have a means for downloading control software from a recording medium such as a ROM, or can store control software for various USB device devices for a long period of time, such as an HD.
It may not have a large-capacity storage device such as D. When connecting various USB device devices to such a host device, various control software cannot be supplied to the host device, or various control software cannot be stored in the device.

In the above case, the host device stores a device driver program for limiting peripheral devices to be connected in advance and a plug-and-play ID such as a vendor (manufacturer) ID and a product (product) ID in the ROM.
It is fixed. Therefore, in order to connect a new compatible USB device device to the host device, the compatible USB device device cannot be connected unless the above-mentioned device driver program is rewritten.

To solve the above-mentioned problem, a device driver program is provided in the USB device connected to the host device, and when the device driver program is connected, this is RA of the host device.
There is a method described in Japanese Patent Application Laid-Open No. 2000-194645 in which various USB device devices can be used by installing on M, but there is a problem that each USB device device must have a device driver program. .

Here, the compatible USB device device (compatible USB device device) is, for example,
This is a USB device device in which the same control software can be used for the old-type speaker and the new-type speaker as the control software when the host device is USB-connected.

The present invention has been made in order to solve the above-mentioned conventional problems, and is compatible with a compatible USB without newly installing control software or rewriting built-in control software. It is an object of the present invention to provide a host device and a compatible device registration method that allow device devices to be easily connected by a plug-and-play function.

[0010]

In order to achieve the above object, the host apparatus according to claim 1 executes corresponding application software when the ID unique to the connected device matches the ID registered in advance. In the host device (host device 100) that performs communication with the connected device device, the mode setting means (registration start button 1) for setting the host device to the registration mode or the normal mode, and the host by the mode setting means. A registration unit (PnPIN registration driver 301, compatible ID storage device 2) that reads and registers the unique ID from the device unit connected when the device is set to the registration mode, and the host unit by the mode setting unit. Read its unique ID from the device connected when it is set to normal mode Collating means for collating the ID which is registered in the registration unit I (PnP driver 302)
And the matching means determines that the ID unique to the device to be connected and the ID registered in the registration means match, the connection control means (PnP driver) that executes the corresponding application software. Thirty
2) and are provided.

The host device according to claim 2 is the host device according to claim 1.
In the host device according to the item [1], if a plurality of application software corresponding to each of the connected device devices are held, the device device to be connected is registered when the ID unique to the device device to be connected is registered by the registration unit. Has a designating means (function selection switch 6) for designating the application software corresponding to, and the unique ID read from the connected device when the host is set to the normal mode by the mode setting means is registered. When the ID matches the ID registered in the means, the application software designated by the designating means is executed to communicate with the connected device.

In the compatible device registration method according to the third aspect, when the ID unique to the device to be connected matches the ID registered in advance, the corresponding application software is executed to communicate with the connected device. In the compatible device registration method for registering the ID in the host device, the step of setting the host device in the registration mode (S1), and the step of reading the unique ID from the device device connected to the host device in the registration mode ( S3) and a step (S4) of registering the ID read from the device unit.

According to the first and third aspects of the present invention, when a new device device operating with application software stored in the host device is connected to the host device, the host device is set to the registration mode, and this device device is set. Peculiar I
After registering D, turn off the power supply of the device once, disconnect the device device from the host device, then turn on the power supply of the host device again and reconnect the device device. At this time, the device device Since the unique ID is registered and the collation with the unique ID received from the device unit is the same, the connection control unit executes the application software for this device unit as well to perform communication, thereby newly controlling. A compatible device device can be easily connected by the plug-and-play function without installing the software for software or rewriting the built-in control software.

According to the second aspect of the present invention, even if there are a plurality of types of application software, the control software in the host device can be rewritten or newly controlled by selecting the application software in the registration mode. Any of a plurality of types of device devices can be easily connected by the plug-and-play function without installing software.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration according to a first exemplary embodiment of a host device of the present invention.
The host device 100 of this example is a compatible US connected by USB.
B device unit (hereinafter simply referred to as compatible device unit) 2
Registration start button 1 for starting registration of a unique ID of 00 in the device, and compatible device device 20 connected by USB
A compatible ID storage device 2 for registering a 0 unique ID (plug and play ID) and a plug and play ID receiving device 4 for communicating with a compatible device device 200 connected by USB are provided as hardware, and the compatible device is provided by plug and play. A plug-and-play (PnP) driver 301 for connecting the device 200, and a plug-and-play (PnP) ID registration driver 30 for registering an ID unique to the compatible device device 200 connected by USB to the device.
2 and the application software 304 corresponding to the compatible device apparatus 200 are provided as software.

Next, the operation of this embodiment will be described with reference to the flowchart shown in FIG. First, press the registration start button 1 of the host device 100 (step S
1). As a result, the device shifts to the registration start mode.
After that, the plug-and-play compatible device device 200 such as a new type speaker is connected to the host device 100 in place of the old type speaker (step S2). Pn
The PID registration driver 301 reads the plug-and-play ID (vendor ID and product ID) from the compatible device device 200 connected by USB through the plug-and-play ID receiving device 4 (step S3). The steps 302 and 303 are performed by the compatible device unit 200 as described above.
This is a mode for receiving D.

The PnPID registration driver 301 registers the read plug and play ID and execution start address of the application software 304 in the compatible ID storage device 2 (step S4). This step S4 is a registration mode. After that, the power of the host device 100 is turned off (step S5). After that, the compatible device apparatus 200 is removed from the host apparatus 100.

Next, the power of the host device 100 is turned on again (step S6), and the device device 200 is connected to the host device 100 again (step S7). The PnP driver 302 reads the plug-and-play ID from the compatible device apparatus 200 through the plug-and-play ID receiving apparatus 4 (step S8). PnP driver 302
Compares the read Plug and Play ID with the Plug and Play ID in the compatible ID storage device 102 (step S9), and if there is a match, the application software registered corresponding to this Plug and Play ID. The execution start address of 304 is read, and the application software 304 is executed from this execution start address (step S10). These steps S7 to S10 are the normal mode plug-and-play execution mode.

FIG. 3 shows the PnP registration driver 301 described above.
FIG. 6 is a diagram showing an example of a shared program design of the PNP driver 302 and the PNP driver 302. In 201, the product ID (PID) and vendor ID registered from the compatible ID storage device 2
(VID), the top address of the application software 304 is read. In 202, the PID and VID of the connected USB device (compatible device 200) are received by the process of acquiring the descriptor indicating the characteristics of the USB device. In 203, the PID and VID are set to the compatible ID storage device 2
Check with those registered in. At 204, the PID and VID received from the USB device and the registered PID and VI
It is determined whether D matches, and if they match, 205
Then, it is judged whether or not it is the normal mode, and if it is the normal mode, the application software 304 is called at 206. Does nothing if not in normal mode. If it is determined that the above PID and VID do not match, 207
If it is in the registration mode, the received ID is registered in the compatible ID storage device 2 in step 208. Does nothing if not in registration mode.

According to the present embodiment, the host device 100
When a new compatible device device 200 that operates with the application software 304 stored in the host device 100 is connected to the host device 100, the host device 100 is set to the registration mode, and the plug and play ID of the compatible device device 200 is set to the compatible ID storage device. If the compatible device unit 200 is temporarily turned off, the compatible device unit 200 is disconnected from the host unit 100, and then the host unit 100 is powered on again to connect the compatible device unit 200 again. , At this time, the plug and play I of the compatible device unit 200
D is registered in the compatible ID storage device 2 and is a unique plug and play I received from the compatible device device 200.
Since the collation with D is the same, the PnP driver 302 can execute the application software 304 and communicate with this compatible device unit 200 as well.

Therefore, for the compatible device unit 200, the application software 30 in the host unit 100 is used.
4, the compatible device apparatus 200 can be used by connecting to the USB without rewriting the control software such as the PnP driver 302 or newly installing the control software.

If the compatible device unit 200 can be attached / detached without turning off the power source, the compatible device unit 200 can be automatically attached / detached from the host device 100 without turning off the power source of the host device 100 in step S5. You can also switch back to normal mode. In addition, the compatible device unit 20
Once the plug-and-play ID of 0 has been registered in the host device 100, the plug-and-play function operates and connection in the normal mode can always be performed thereafter.

FIG. 4 is a block diagram showing the configuration of the host device according to the second embodiment of the present invention. However, the same parts as those of the first embodiment shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be appropriately omitted.

In the first embodiment, the unique ID of the compatible device 200 assuming a single-function application
Explained how to register. In the second embodiment, for example, the host device 100 is an in-vehicle adapter device, and a modem function device as the device device 200 and an audio device device for isochronously transferring audio data are connected.

In such a case, there are two types of application software, one for implementing the hands-free function and one for implementing the modem data communication function, and the application software for executing the plug-and-play differs depending on the connected device.

Therefore, the host device 10 of the present embodiment
0 has a function selection switch 6, two types of mobile phone modem application software 304a and a speaker application software 304b for setting plug and play according to the compatible device apparatus 200, and other configurations are as shown in FIG. It is similar to the first embodiment shown in FIG.

Next, the operation of this embodiment will be described. First, a device device 20 compatible with the host device 100
Depending on whether the modem function device is connected or the audio device device is connected as 0, the function selection switch 6 is used to specify the application software corresponding to the compatible device device 200 to be connected. For example,
When a modem function device is connected, the 6a button of the function selection switch 6 is pressed to specify the mobile phone modem application software 304a. When connecting an audio device, the 6b button is pressed to specify the speaker application software 304b.

After that, the registration start button 1 is pressed to set the host device 100 in the registration mode, and then the host device 100
When the device unit 200 is connected to, the operation thereafter is the same as steps S1 to S10 in the flowchart shown in FIG.

Therefore, even if there are two types of application software as in this embodiment, the control software in the host device 100 can be rewritten or newly controlled by selecting the application software in the registration mode. Any of the two types of compatible device units 200 can be used by USB connection without installing software.

FIG. 5 is a specific example to which the above-described second embodiment of the present invention is applied, and assumes an in-vehicle adapter host device 300 as a host device. At the time of developing this in-vehicle adapter host device 300, a mobile phone modem application software 304a and a speaker application software 304b compatible with the next-generation mobile phone device 401 having a plug-and-play function for connecting to the in-vehicle adapter host device 300 are provided. It is mounted and fixed in a ROM or the like in the apparatus, and thereafter, when the next-generation mobile phone 402 is newly developed in the future, the compatibility with the next-generation mobile phone 401 as a USB device function is maintained.

When the next-generation mobile phone 402 of the future is connected to the in-vehicle adapter host device 300, as described in the embodiment of FIG. 4, the 6a button of the function selection switch 6 is pressed to apply the mobile phone modem application software 304a.
After selecting, a transition is made to the registration mode described above, and a series of operations is performed. Thereby, the in-vehicle adapter host device 30
0 to the next-generation mobile phone 402 of the future by USB connection, and also the next-generation mobile phone 402 to be developed in the future, at the time of developing the in-vehicle adapter host device 300, basic functions of the modem data communication function and the hands-free function. Can be guaranteed.

The same applies to the USB speaker 501 connected to the host device 300 by USB. If the USB speaker 502 to be developed in the future is used as a compatible device device, this can be easily connected to the host device 300 to provide the basic function. Can be maintained.

[0000]

As described above, according to the present invention,
When a new device that operates with application software stored in the host device is connected to the host device, the device is placed in the registration mode and the unique ID of this device device is registered to newly create a control device. A new compatible device unit can be easily connected by the plug-and-play function without installing software or rewriting the built-in control software.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration according to a first exemplary embodiment of a host device of the present invention.

FIG. 2 is a flowchart illustrating an operation of the device shown in FIG. Is.

FIG. 3 is a diagram showing an example of a program design commonly used by the PnP registration driver and the PNP driver shown in FIG.

FIG. 4 is a block diagram showing a configuration according to a second exemplary embodiment of a host device of the present invention.

FIG. 5 is a block diagram in which a vehicle-mounted adapter host device is assumed as a host device in a specific example to which the second embodiment of the present invention shown in FIG. 4 is applied.

[Explanation of symbols]

1 Registration start button 2 Compatible ID storage device 4 Plug and play ID receiving device 6 Function selection switch 100 Host device 200, 201 Compatible device device (plug and play device device) 300 In-vehicle adapter host device 301 PnP (plug and play) ID registration Driver 302 PnP (Plug and Play) driver 304 Application software 304a Application software for mobile phone modem 304b Speaker application software 401 Next-generation mobile phone device 402 Future next-generation mobile phone device

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5B014 EA01 EB03 FA17 FB04 GD05                       GD33 HC05 HC08 HC13                 5B076 AB17 AB20

Claims (3)

[Claims] 1. A host device that executes a corresponding application software to communicate with the connected device unit when the ID unique to the connected device unit matches the pre-registered ID. Alternatively, a mode setting unit that sets the normal mode, a registration unit that reads and registers a unique ID from a device device connected when the host device is set to the registration mode by the mode setting unit, and the mode The ID registered in the registration means by reading the unique ID from the device connected when the host device is set to the normal mode by the setting device.
And a matching unit that executes the corresponding application software when the matching unit determines that the ID unique to the device to be connected and the ID registered in the registration unit match. A host device comprising: a control unit. 2. When a plurality of application software corresponding to each of the connected device units are held, when registering an ID unique to the device unit to be connected by the registration means, it corresponds to the connected device unit. And a unique ID read from the connected device when the host device is set to the normal mode by the mode setting device and an ID registered in the registration device. The host device according to claim 1, wherein, when they match, the application software designated by the designation means is executed to communicate with the connected device. 3. A compatible device for registering the ID in a host device that executes corresponding application software and communicates with the connected device when the ID unique to the device to be connected matches a previously registered ID. In the registration method, a step of putting the host device in a registration mode, a step of reading a unique ID of the device device connected to the host device in the registration mode, and a step of registering the ID read from the device device. A compatible device registration method comprising: