JPH02171913A - Optical disk device control system - Google Patents

Abstract

PURPOSE:To simplify an interface part and to shorten the processing time of a system by providing the system with a means for adjusting the difference of parameters of optical disk devices and editing optimum data. CONSTITUTION:An edition processing means consisting of a data editing means 51, a parameter reading means 52 and a connecting state reading means 54 reads out the sorts of optical disk devices 41 to 43 to be connected from a connecting state table 55 in accordance with data outputted from master application program parts 11 to 1n and reads out a parameter corresponding to the optical disk device of the read sort from a parameter table 53. The data transferred from the master application program part are edited so that the transfer frequency of the data can be minimized and the edited data are transferred to the control program part of the optical disk device concerned through a common interface mans 56. Consequently, even when the sorts of the optical disk devices to be controlled and the number of optical disk devices are increased, the interface part can be prevented from being complexed and the processing time of the system can be shortened.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is utilized in an electronic filing system, and in particular,
The present invention relates to an optical disc device control method for controlling a plurality of types of optical disc devices.

〔overview〕

The present invention provides an optical disk device control method in a data processing system equipped with a plurality of types of optical disk devices, including adjusting differences in parameters of the optical disk device between a higher-level application program section and a control program section of the optical disk device. By providing a means to edit the data to be optimal for the optical disc device, the interface is simplified and the system processing time is reduced.

[Conventional technology]

Conventionally, when controlling multiple types of optical disk devices, a host application program controls each optical disk by taking into consideration the physical differences between each optical disk device (parameters such as number of sectors per track, storage capacity per sector, etc.). The program had an interface.

FIG. 4 is a block diagram showing a conventional optical disc control system. This conventional example includes three optical disk devices A41, B42, and C43 of different types, control program sections A31, B32, and C33 that control the optical disk devices A41, B42, and C43, respectively, and a host application program section (1) i. 1, (2)] 25
, (n)In and application program section (1)
11, (2) 12, , (n)in interface means (1) 21, (2) 22, , (
n) 2n.

And each upper application program part (1) 1
1, (2) 12, , (n) In are ink face means (1) 21, (2) 22, , (n) 2rl, respectively.
By connecting to the control program units A31, B32, and C33 respectively through
1, exchanges data with B42 and C43.

[Problem that the invention seeks to solve]

In the conventional optical disk control method described above, each upper application program operates while being aware of the differences between each optical disk device. (number of sectors, storage capacity per sector, etc.). For this reason, all parts of the upper application program that have interfaces with optical disk devices are affected, and the disadvantage is that the more optical disk devices there are to control, the more complex the interface portion becomes and the longer the system processing time becomes. .

An object of the present invention is to provide an optical disk device control method that eliminates the above-mentioned drawbacks and can reduce the processing time of the system even if the number and types of optical disk devices to be controlled increase, without complicating the interface part. It is about providing.

[Means for solving problems]

The present invention includes a plurality of types of optical disc devices, a plurality of control program units that respectively control the optical disc devices,
In an optical disk device control method in a data processing system including a plurality of upper application program sections that exchange data between the optical disk device and its control program section, a parameter table in which parameters of each optical disk device are registered in advance is stored. a second table section storing a connection status table in which the type of the optical disk device connected to the system is registered in advance, and the parameter table according to the data from the upper application program section. and reads the operating conditions and connection status of the optical disk device from the connection status table,
The present invention is characterized by comprising an editing processing means for editing the data in a form adapted to the optical disc device, and a common interface section for transferring the data edited by the editing processing means to the optical disc device.

[Effect]

The editing processing means reads the type of optical disk device to be connected from the connection status table according to the data from the upper application program section, and reads the parameters (number of sectors per track, storage per sector) for that type of optical disk device from the parameter table. capacity, etc.). Then, the data passed from the higher-level application program section is edited so that the number of data transfers is minimized, and the edited data is passed to the control program section of the optical disk device.

Therefore, one interface means can be provided in common to the editing processing means to interface with the control program section of each optical disk device. Moreover, even if the number of different types of optical disk devices increases, it is only necessary to register them in the parameter table and connection status table, and as a result, the interface part can be simplified and the processing time of the system can be shortened.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.
The table shows an example of the parameter table, and the second table shows an example of the connection status table.

This embodiment includes three types of optical disc devices A41, B42, and C43, and three control program units A that control the optical disc devices A41, B42, and C43, respectively.
31, B32 and C33, and an optical disc device A41,
B42 and C43 are controlled by their control program sections A31 and B.
Optical disk device control method in a data processing system equipped with a plurality of n (n is a natural number) upper-level application program sections (1) 11, (2) 12, , (n) in that exchange data via C.32 and C33. , a first table section (1) 53a storing a parameter table 53 in which parameters of each optical disk device A41, B42 and C43 are registered in advance, and an optical disk device A41, B42 and C connected to the system.
Connection status table 5 with 43 types registered in advance
5 is stored in the second table section (2) 55 a, and the upper application program section (1) 11, (2) 1
2. , (n) Read the operating conditions and connection status of the optical disk device A41, B42, or C43 from the parameter table 53 and connection status table 55 according to the data from In, and read the data into the optical disk device A.
A data editing means 51, a parameter reading means 52, and a connection status reading means 54 serve as editing processing means for editing the data into an optimal form for the optical disc device A41, B42, or C43, and the data edited by the data editing means 51 is transferred to the optical disk device A41. , B42 or C43. Here, the parameter reading means 52 reads parameters serving as operating conditions from the parameter table 53 according to instructions from the data editing means and passes them to the data editing means 51. Similarly, the connection status reading means 54 reads the connection status ( (type of optical disk device to be connected). The data editing means 51 includes a work buffer 51a for temporarily holding data to be waited for during editing, controls the parameter reading means 52 and the connection status reading means 54, performs predetermined data editing, and stores the edited data. The data is passed to the interface means 56.

(Margins below this page) Table 1 Parameter table Table 2 Connection status table Parameter table 53 in Table 1 shows the type of drive, the number of sectors per track (sector/track),
Contains the number of bytes per sector (bytes/sector).

The connection status table 55 in Table 2 includes a drive number and the type of drive (type of optical disk device) for the drive number.

The features of the present invention include, in FIG. 1, data editing means 51 including a work buffer 51a, parameter reading means 52, and connection status reading means 54 as editing means,
Table section (1) in which parameter table 53 is stored
53a, a table section (2) 55a storing a connection status table 55, and a common interface means 56.

Next, the operation of this embodiment will be explained with reference to FIGS. 2 and 3. FIG. 2 is a flowchart showing the operation of the editing processing means, and FIG. 3 is an explanatory diagram showing the data optimization operation in the data editing means.

The operation of this embodiment will now be described in the case where data is written to an optical disk device. The drive number for writing data and the data to be actually written are input from the upper application program section (L) 11, (2) 12 or (n) 1 n to the data editing means 51 (step S
l). Upper application program section (1) 11,
(2) Upon receiving a data write request from 1.2 or (n) i, the data editing means 51 checks the connection status reading means 5 to find out what kind of drive the specified drive is.
4 (step 32). Next, the data editing means 51 obtains parameters corresponding to the specified drive type using the parameter reading means 52 (step S3). Next, the data editing means 51 uses the parameter values of the optical disk device obtained from the parameter table 53 and the upper application program sections (1) 11, (2).
) 12 or (n)in. If they match, the input data is output to the control program section of the optical disk device. Step S5) If they do not match, the input data is output to the control program section of the optical disk device. , the input data is edited and outputted so that the number of exchanges is minimized (step S6).

Next, the optimum operation of data in the data editing means 51 will be explained with reference to FIG. However, in this case, the upper application program section (1) 11 writes data to the optical disk device B42, and the upper application program section (1) 11 writes data to the optical disk device B42.
It is assumed that data is transferred in units of 12 bytes/sector, and control program B32 writes data to optical disk device B42 in units of 1024 bytes/sector. Therefore, in order to minimize the number of times data is actually written to the optical disk device ff1B42, the data editing means 51 must
It is necessary to edit data of 12 bytes/sector into a group of 1024 bytes/sector.

In the case of FIG. 3, even if data #1 and #7 are passed to the data editing means 51, the data are not passed to the control program section B32, but are taken into the work buffer 51a, and the next data #2 is received. After editing the data to 1024 bytes/sector, the data of ■ and ■ (including half of dummy data) is delivered to the control program section B32. That is, if the data cannot be divided into 1024 bytes/sec and edited well, the data is passed through the work buffer 51a, and if the data can be edited well divided, the data is passed in units of 1024 bytes/sector without passing through the work buffer 51a.

In this way, in this embodiment, the data #1 to #7 received from the upper application program section (1) 11 are processed so as to be in the optimal form under the byte/sector value of the optical disk device B42 to be written. is edited and passed to the control program section B32 of the optical disk device B42.

〔Effect of the invention〕

As explained above, the present invention is based on the physical conditions (parameters) of an optical disk device for writing data of a fixed size passed from a higher-level application program section.
By editing the data in the optimal form (minimizing the number of times it is actually output to the optical disk device, etc.),
It has the following effects.

(1) When the number of times that data is actually written to the optical disk device decreases, the processing time as a system becomes shorter.

(2) Even if an optical disk device with new parameters is connected, the information can be simply registered in the connection status table and parameter table, eliminating the need to modify the host application program.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 2 is a flowchart showing the operation of the editing processing means. FIG. 3 is an explanatory diagram showing the data optimization operation of the data editing means. FIG. 4 is a block diagram showing a conventional example. 11... Upper application program section (1),
12... Upper application program section (2),
1n... Upper application program section (n),
21... Interface means (1), 22... Interface means (2), 2n... Interface means (n), 31... Control program section A132...
Control program section B, 33...control program section C1
41... Optical disk device A142... Optical disk device B143... Optical disk device C151... Data editing means, 51a... Work buffer, 52... Parameter reading means, 53... Parameter table,
53a...Table part (1), 54...Connection status reading means, 55...Connection status table, 55a...
Table section (2), 56... common interface means, 81-S6... steps.

Claims (1)

[Scope of Claims] 1. A plurality of types of optical disk devices, a plurality of control program sections that respectively control the optical disk devices, and a plurality of upper level application programs that exchange data with the optical disk devices via the control program sections. A first table section stores a parameter table in which parameters of each optical disk device are registered in advance; and a first table section that stores a parameter table in which parameters of each optical disk device are registered in advance. Reads the operating conditions and connection status of the optical disk device from the parameter table and the connection status table according to data from the second table unit storing the registered connection status table and the upper application program unit, and reads the data. An optical disc device control method comprising: an editing processing means for editing in a form adapted to the optical disc device; and a common interface section for transmitting data edited by the editing processing means to the optical disc device.