TWI447711B - System and method for controlling a button of a cd-rom - Google Patents

Description

CD player button control system and method

The invention relates to a disc drive key control system and method.

A CD player that provides users with the ability to view CDs and install programs is an important part of the computer. With the continuous advancement of technology, the size of computers is becoming smaller and smaller, such as laptops and integrated computers. Ultra-thin disc players and drop-in disc players without eject buttons are widely used in notebook computers and integrated computers because of their small footprint. Since the ultra-thin disc player and the slot-loading disc player without the eject button do not have the eject button function, the software needs to be used to analogize the function of the eject button. Each time the user ejects the disc, it must be realized by operating the software. It is not convenient enough. There are two common ways to solve the above problems:

(1) Find the manufacturer's custom CD player, reserve the stitches, and then connect the mechanical buttons directly after connecting the cable. The disadvantage is that the price is very high, and the layout of the external cable must be considered, which is not conducive to the design.

(2) Arranging an embedded control chip near the optical disk drive to control the ejection of the optical disk drive has the disadvantage of increasing the cost of one control chip and requiring PCB wiring and additional power supply.

In view of the above, it is necessary to provide a disc player button control system and method, which can control the disc player to eject a disc when the disc player button connected to the input/output chip of the computer is pressed, thereby realizing the disc player without the eject button. The button function is popped up.

The CD player button control system runs in a computer, and the input and output chips of the computer are connected to the CD player and a CD player button. The system includes: a detecting module, configured to detect whether the button of the optical disk drive is pressed; and a determining module, configured to determine whether a optical disk exists in the optical disk drive when detecting that the optical disk drive button is pressed; The control module is configured to: when it is determined that the optical disc exists in the optical disc drive, send a control signal to the optical disc drive, and control the optical disc drive to eject the optical disc.

The CD player button control method is applied to a computer, and the input/output chip of the computer is connected to the CD player and a CD player button. (a1) detecting whether the button of the optical disc drive is pressed when the computer is in a normal operation state; (a2) determining whether a disc is present in the optical disc drive when the disc player button is pressed, and if there is a disc, Then, step (a3) is performed; otherwise, the process returns to step (a1); (a3) sends a control signal to the optical disk drive to control the optical disk drive to eject the optical disk.

Compared with the prior art, the optical disc button control system and method can control the optical disc in the optical disc drive when the optical disc button connected to the input/output chip of the computer is pressed without hardware and cost increase. Pop-up, the function of the eject button of the CD-ROM without the eject button is convenient for the user to use.

1‧‧‧ computer

10‧‧‧Input and output wafer

11‧‧‧Disc button

12‧‧‧ Processor

13‧‧‧CD player

14‧‧‧ memory

20‧‧‧Disc button control system

201‧‧‧Detection module

202‧‧‧Judgement module

203‧‧‧Control Module

1 is a structural diagram of a button control system of an optical disc drive of the present invention.

2 is a schematic view showing the relative positions of the optical disk drive and the optical disk drive button in the computer according to the preferred embodiment of the present invention.

3 is a functional block diagram of a button control system of the optical disc drive of the present invention.

4 is a flow chart of a preferred embodiment of a method for controlling a button of an optical disk drive according to the present invention.

As shown in FIG. 1, it is an architectural diagram of the button control system of the optical disc drive of the present invention. The CD player button control system 20 operates in a computer 1, which can be a laptop or an integrated computer. The computer 1 further includes an input/output chip 10, a disc player button 11, a processor 12, a disc player 13, and a memory 14. The disc player button 11, the processor 12, the optical disc drive 13 and the memory 14 are connected to the input/output wafer 10, respectively. The input/output chip 10 can be a south bridge chip or a super input/output chip. The input/output chip integrates GPIO (General Purpose Input Output) and SMBUS (System Management Bus). The optical disk drive 13 refers to an ultra-thin optical disk drive or a suction type optical disk drive without an eject button.

2 is a schematic view showing the relative positions of the optical disk drive and the optical disk drive button in the computer according to the preferred embodiment of the present invention. The disc player button 11 can be disposed in the vicinity of the disc player 13. The disc player button 11 is attached to the computer 1 and is connected to the input/output chip 10 and is not affiliated with the disc player 13. It should be noted that FIG. 2 is only a schematic diagram showing the relative positional relationship between the optical disk drive button 11 and the optical disk drive 13 in the computer 1, which is not in the computer 1 for the optical disk drive button 11 and the optical disk drive 13 Do not limit the absolute position.

As shown in FIG. 3, it is a functional module diagram of the button control system of the optical disc drive of the present invention. The disc player button control system 20 is configured to control the disc ejecting in the disc player 13 when the disc player button 11 is pressed. The CD player button control system 20 includes a detection module 201, a determination module 202, and a control module 203. The CD player button control system 20 can be installed in the memory 14, and the processor 12 controls the CD player to press The keys control the operation of system 20. The various functional modules of the CD player key control system are described below in conjunction with FIG.

As shown in FIG. 4, it is a flowchart of a preferred embodiment of the method for controlling the button of the optical disc drive of the present invention.

In step S1, the computer 1 is turned on and is in a normal operating state.

In step S2, the detecting module 201 detects whether the disc player button 11 is pressed. When it is detected that the disc player button 11 is pressed, the determining module 202 is triggered to perform step S3. Otherwise, step S2 is repeated. The detection module 201 can detect whether the CD player button 11 is pressed by two methods, polling or interrupt triggering.

The polling means that the detecting module 201 reads the level signal of the output port of the corresponding disk player button 11 in the input/output chip 10 at regular intervals (for example, 50 ms), and determines the level signal according to the level signal. Whether or not the disc player button 11 is pressed, if the read level signal is 1, it can be determined that the disc player button 11 has been pressed. The manner of the polling is implemented by the processor 12 controlling the detection module 201 to actively query, and the processor 12 is required to be in an operating state.

The method of interrupt triggering refers to triggering the detecting module 201 to read the interrupt signal when the input/output chip 10 generates an interrupt signal, and the detecting module 201 determines whether the signal source of the interrupt signal is from the The disc player button 11 determines whether or not the disc player button 11 has been pressed. The interrupt triggering mode only needs to control the detecting module 201 to process the interrupt signal when the input/output chip 10 generates an interrupt signal, and the processor 12 does not need to be in an operating state all the time.

In step S3, the determining module 202 determines whether there is a disc in the optical disk drive 13. If the optical disc exists, the control module 203 is triggered to perform step S4, otherwise, Go back to step S2. Specifically, the determining module 202 sends a command to the optical disk drive 13 to transmit an ATAPI (AT Attachment Packet Interface: AT Attachment Packet Interface) command, and then reads the control of the optical disk drive 13 The value expressed in the memory determines whether or not a disc exists in the optical disk drive 13 based on the value expressed in the control register. If the value in the control register is 00A1, it can be determined that a disc exists. When the value in the read register is 00A0, it means that no disc exists.

In step S4, the control module 203 sends a control signal to the optical disk drive 13 to control the optical disk drive 13 to eject the optical disk.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and the present invention is not limited thereto. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that Modifications or equivalents are made without departing from the spirit and scope of the invention.

1‧‧‧ computer

10‧‧‧Input and output wafer

11‧‧‧Disc button

12‧‧‧ Processor

13‧‧‧CD player

14‧‧‧ memory

20‧‧‧Disc button control system

Claims (8)

An optical disc drive button control system running in a computer, wherein the input/output chip of the computer is connected to the optical disc drive and an optical disc drive button, wherein the optical disc drive is an ultra-thin optical disc drive or a suction optical disc drive without an eject button; The system includes: a detecting module, configured to detect whether the button of the optical disk drive is pressed; and a determining module, configured to determine whether a optical disk exists in the optical disk drive when detecting that the optical disk drive button is pressed; And a control module, configured to send a control signal to the optical disc drive when the optical disc is present in the optical disc drive, and control the optical disc drive to eject the optical disc. The disc drive button control system of claim 1, wherein the detecting module detects whether the disc player button is pressed: reading the corresponding one of the input and output wafers at regular intervals. a level signal of the output of the button of the optical disc drive; and determining whether the button of the optical disc drive is pressed according to the level signal. The disc drive button control system of claim 1, wherein the detecting module detects whether the disc player button is pressed by: when the input/output chip generates an interrupt signal, the detecting module reads The interrupt signal; and determining whether the signal source of the interrupt signal is from the optical disk drive button, and if the interrupt signal is from the optical disk drive button, determining that the optical disk drive button has been pressed. The disc drive button control system of claim 1, wherein the judging module judges whether there is a disc in the disc player by sending a command to the disc player, and reading the control of the disc player. The values expressed in the register; and It is judged whether or not a disc exists in the disc player based on the read value. An optical disc player button control method is applied to a computer, wherein an input/output chip of the computer is connected to the optical disc drive and an optical disc drive button, and the optical disc drive is an ultra-thin optical disc drive or a suction optical disc drive without an eject button; The method comprises the steps of: (a1) detecting whether the button of the optical disk drive is pressed when the computer is in a normal working state; (a2) determining whether a optical disk exists in the optical disk drive when detecting that the optical disk drive button is pressed If there is a disc, perform step (a3), otherwise, return to step (a1); (a3) issue a control signal to the disc player to control the disc player to eject the disc. The disc drive button control method according to claim 5, wherein the step (a1) includes the step of reading the output 埠 level of the corresponding disc player button in the input/output wafer at regular intervals. And determining, according to the level signal, whether the button of the optical disk drive is pressed. The disc drive button control method according to claim 5, wherein the step (a1) comprises the steps of: reading the interrupt signal when the input/output chip generates an interrupt signal; and determining the signal of the interrupt signal Whether the source is from the disc player button, if the interrupt signal is from the disc player button, it is determined that the disc player button has been pressed. The method for controlling a disc player button according to claim 5, wherein the step (a2) comprises the steps of: sending a command to the optical disc drive, and reading a value expressed in a control register of the optical disc drive; And determining whether a disc exists in the disc player based on the read value.