TWI512481B - USB 3.0 bus mapping of the USB port method - Google Patents

Description

USB3.0 hub's mapping USB method

The invention relates to a USB port method for USB hub, in particular to a USB port method for USB 3.0 hub.

At present, computer-related products are most commonly used to use USB transmission protocols. Since the early USB1.0, USB2.0 to the current USB3.0 transmission protocol, USB3.0 has the advantage of faster transmission speed, and has become a computer-related host. The standard equipment, because the USB3.0 can be compatible with the USB2.0 transmission protocol, the current host operating system will be equipped with a USB device in the USB3.0 socket, which will automatically generate a set of USB3.0 and USB2. 0埠, then look at the current USB device as a USB3.0 device or USB2.0 device, and then mark the corresponding USB3.0埠 or USB2.0 into a connected logo; at this time, the operating system is based on the current USB transfer protocol. The USB device communicates, and the following will be further explained by the actual host.

Please refer to FIG. 7 , which is a host with a NEC-USB3.0 controller and two Intel-USB2.0 controllers, and the host 10 is equipped with two USB3.0 sockets 11 . Four USB2.0 sockets 12, and one of the USB2.0 sockets 12 is provided with a USB 2.0 hub 30 having eight USB 2.0 sockets, one of the eight USB 2.0 sockets of the USB 2.0 socket 31 A mouse (USB2.0 device) 50 is inserted, so that the operating system of the host computer 10 scans the peripheral device. The connected logo will be marked on the fifth USB 2.0 port 31 marked with the USB 2.0 hub 30, as shown in Figure 8, and the USB 2.0 transfer protocol and the USB 2.0 on the USB 2.0 hub 30. Device 50 communicates.

Referring to FIG. 9 , when the host 10 is externally connected to a USB 3.0 hub 20 for performing line detection of the USB 3.0 device 40, the USB 3.0 hub 40 is inserted into one of the USB 3.0 sockets of the host 10. 11. After the host 10 scans the peripheral device, as shown in FIG. 10, although only one USB 3.0 hub 20 having four USB 3.0 sockets 21 is inserted, the host 10 scans out the NEC-USB3.0 controller. One of the USB ports of the Root HUB [port 1] is marked with a 21aUSB3.0 hub 20a with four USB3.0 ports, and one of the USB 2.0 ports under the Root HUB of the Intel-USB2.0 controller.埠[port3] is marked as a USB2.0 hub 20b, and four USB2.0埠21b are displayed under the USB2.0 hub 20b; therefore, when the host is externally connected to a USB3 with four USB3.0 sockets. 0 Hub 20, the operating system will mark one of the USB3.0 ports as USB3.0 hub 20a, and automatically mark one USB2.0 port of the USB2.0 hub as a USB2.0 hub 20b, a total of 8 USB port.

At present, the USB 3.0 controller of the host 10 is designed such that the USB 3.0 socket 11 of the host 10 can be used downward compatible with the USB 2.0 device 50, but this design also causes such a host 10 to be used for USB 3. 0 device misjudgment when detecting good products on the production line; that is, the line detection system displays the first on the line detection system according to the USB3.0 hub 20 and the total number of USB ports on the host operating system. To the USB 3.0 device 40 of the 8th. Among them, the first to fourth will correspond to the operating system USB3.0 controller under the first USB3.0埠 four USB3.0埠21a, when the operator inserts the USB3.0 device 40 into the first USB3.0 socket of the USB3.0 hub 20 externally connected to the host At 21 o'clock, normally, the detection system 60 will display No. 1, FIG. 11A and FIG. 11B, but it is also possible that the host 10 misjudges the USB 2.0 device due to factors such as a host operating system error or an operator insertion action. 12A and FIG. 12B, so that the first USB 2.0 port under the third USB 2.0 under the USB 2.0 hub of the Intel-USB 2.0 controller on the operating system is marked as the connected identifier. The time detection system 60 communicates with the USB 3.0 device 40 through the host, because the host 10 communicates with the USB 3.0 device in the USB 2.0 transmission mode, so that the detection error, the operator will eliminate the current good USB3.0 device. This issue needs to be further improved.

In view of the above-mentioned USB 3.0 hub plugged into a host with a USB 3.0 connector, the USB 3.0 device plugged into the USB 3.0 hub is mistaken by the host for the technical defect of the USB 2.0 device, and the present invention mainly The purpose is to provide a USB 3.0 hub mapping method.

The main technical means used to achieve the above purpose is to make the USB 3.0 hub's mapping method include: obtaining the USB tree relationship after the host scan; selecting the USB port marked with the USB hub from all the USB ports; According to different USB transmission protocols, the group is the USB3.0 port of the USB3.0 hub and the USB2.0 port of the USB2.0 hub; and all USB3.0 hubs are compared with the USB2.0 hub one by one, if the match is satisfied The relationship produces a pair of tables.

The above-mentioned pairing table generated by the present invention will automatically mark the corresponding USB 2.0 hub by inserting a USB 3.0 hub into the host, and the USB 2.0 hub will be mapped with its real USB 3.0 hub, that is, the USB 2.0 hub. The number of USB 2.0 ports is set to match the USB 3.0 port of the USB 3.0 hub. When the detection system determines that one of the USB 2.0 ports of the operating system has been marked as a link, it can be based on The mapping relationship finds USB3.0埠, so that the corresponding number corresponding to USB3.0埠 is displayed to the operator. Therefore, the present invention can solve the technical defect that the operator inserts the USB 3.0 hub into the USB 3.0 socket and displays the wrong number on the detection system.

10‧‧‧Host

11‧‧‧USB3.0 socket

12‧‧‧USB2.0 socket

13‧‧‧USB3.0 controller

14, 14'‧‧‧USB2.0 controller

20‧‧‧USB3.0 Hub

20a‧‧‧USB3.0 Hub

20b‧‧‧USB2.0 Hub

21‧‧‧USB3.0 socket

21a‧‧‧USB3.0埠

21b‧‧‧USB2.0埠

30, 30'‧‧‧USB2.0 Hub

30a, 30a’‧‧‧USB2.0 Hub

31, 31'‧‧‧USB2.0 socket

31a‧‧‧USB2.0埠

40‧‧‧USB3.0 device

50‧‧‧USB2.0 device

60‧‧‧Detection system

Figure 1 is a block diagram showing the detection system of the USB 3.0 device of the present invention.

2A to 2D are diagrams showing the tree of the present invention after scanning by a host using a USB 3.0 controller.

3 is a flow chart showing a first preferred embodiment of the method for judging the matching relationship of the present invention.

4 is a flow chart showing a second preferred embodiment of the method for judging the matching relationship of the present invention.

5A to 5D are tree diagrams of the present invention after scanning by a host using a USB 3.0 controller.

Figure 6 is a schematic diagram of a detection screen of the detection system of the present invention.

Figure 7: Schematic diagram of the connection between a host and a USB 2.0 hub and a USB 2.0 device.

Figure 8: Tree diagram after scanning by multiple USB controllers used by the host of Figure 7.

Figure 9: Schematic diagram of a host and USB2.0 and USB3.0 hub and USB3.0 device connection.

Figure 10 is an architectural diagram of a detection system for a USB 3.0 device.

11A and FIG. 11B are schematic diagrams showing a tree diagram and a detection screen after scanning by a plurality of USB controllers used by the host of FIG. 10.

12A and FIG. 12B are schematic diagrams showing a tree diagram and a detection screen after scanning by a plurality of USB controllers used by the host of FIG. 10.

First, referring to FIG. 1 , the USB 集线器 method of the USB 3.0 hub of the present invention includes: obtaining a USB 埠 tree relationship after scanning by the host 10, as shown in FIG. 2C or 2D; selecting from all USB ports. A USB port labeled with a USB hub; according to different USB transmission protocols, the group is the USB 3.0 port 21a of the USB 3.0 hub 20a and the USB 2.0 port 21b of the USB 2.0 hub 20b, as shown in FIG. 2C or 2D. And compare all USB3.0 hubs 20a one by one with the USB 2.0 hub 20b, and if a matching relationship is satisfied, a pair of tables is generated.

As illustrated in the above table, when one of the USB 2.0 hubs 20b satisfies the matching relationship with the current USB 3.0 hub 20a, the USB 2.0 埠 21b of the USB 2.0 hub 20b and its corresponding USB 3.0 埠 21a mapping relationship are set. Therefore, when the detection system 60 determines that one of the USB 2.0 ports 21b of the USB 2.0 hub 20b is connected on the operating system, the USB 3.0 can be found according to the mapping relationship (USB3.0 socket X). 21a, as shown in FIG. 2C, taking the first USB2.0埠[Port 1] under the USB2.0 hub 20b as an example, according to its pairing relationship (USB3.0 socket 1), it can be found corresponding to USB3.0. The first USB 3.0 port [Port1] of the hub 20a.

As for the above USB3.0 hub and USB2.0 hub matching off, there are several ways to judge.

First, please refer to FIG. 1 , taking a USB 3.0 controller with two USB3.0 sockets 11 as an example. When the USB 10 controller is built in the host 10, it will display after scanning the peripheral device. The tree diagram of the tree relationship shown in FIG. 2A, that is, a hub (RootHUB) appears under the USB3.0 controller, and two sets of USB3.0埠RootHUB_[Port1] and RootHUB_ are displayed downward from the root hub. [Port2] and two sets of USB2.0埠RootHUB_[Port3], RootHUB_[Port4]. When a USB 3.0 hub 20 having four USB 3.0 sockets 21 is connected to one of the USB 3.0 sockets 11 of the host 10, a tree diagram of a tree relationship is updated after scanning by the host 10, as shown in FIG. 2B. Based on the determination that the USB 3.0 hub 20 is a USB 3.0 device, a USB 3.0 hub 20a and a USB 2.0 hub 20b are indicated in the tree diagram, that is, the USB 3.0 hub 20a includes four sets of USB3. 0埠21a, while USB2.0 hub 20b contains four groups USB2.0埠21b. Four sets of USB3.0埠21a are exhibited downwards from one of the USB3.0埠 RootHUB_[Port1], and four sets of USB2.0埠21b are displayed downward from one of the USB2.0埠RootHUB_[Port3].

According to the characteristics of the USB3.0 controller, after scanning the USB3.0 controller, the host 10 will symmetrically indicate a set of USB3.0 hub 20a and a set of USB2.0 hub 20b, and the USB3.0 and USB2.0 hubs. 20a, 20b have the same number of USB ports 21a, 21b; Yes, determine that one of the matching relationships includes the following steps, and please refer to Figure 3: determine the current USB3.0 hub 20a and any USB2.0 hub Whether 20b belongs to the same parent node (RootHUB) S131a; if it belongs to the same parent node, it is further determined whether the number of USB3.0埠21a of USB3.0 hub 20a and USB2.0埠21b of USB2.0 hub 20b are the same as S132a; For the same number, it is further determined whether the USB 3.0 埠 21a and the USB 2.0 埠 21b to which the USB 3.0 hub 20a and the USB 2.0 hub 20b are connected have a 埠 order correspondence, such as a forward 埠 order correspondence or a reverse 埠The order correspondence relationship S133a; and if there is a 埠 order correspondence relationship, the USB 3.0 hub 20a and the USB 3.0 埠 21a and the USB 2.0 埠 21b to which the USB 2.0 hub 20b belongs are respectively paired and recorded in the mapping table. In S134a.

The above-mentioned forward 埠 order correspondence is USB3.0 Port 1, 2...n corresponds to USB2.0 port 1, 2...n; and the reverse 埠 order correspondence is USB3.0 Port 1,2.. The .n order corresponds to USB2.0 port n, n-1...1.

Another way of judging the matching relationship with the above matching The relationship judgment method is roughly the same, as shown in FIG. 4, but when the number of USB3.0埠 and USB2.0埠 is different, S132 is further determined, and the number of USB3.0 ports of the USB3.0 hub is further determined to be an odd number S135, and then Find out if the parent node of any USB2.0 hub is USB3.0 hub S136; if they are the same, compare the USB3.0 ports and USB2.0 ports connected to the USB3.0 hub and USB2.0 hub to see if they have the order. Correspondence relationship S137; if there is a 埠 order correspondence, in addition to the USB3.0 port connected to the USB2.0 hub, the remaining USB3.0 ports are respectively paired with the USB 2.0 ports to which the USB 2.0 hub belongs, and recorded in the pair S138 in the table, as shown in the following table.

In addition to the above steps, it is further determined that the IDs (VIDs) of the providers of each USB 3.0埠21a and USB2.0埠21b are the same, or the products of each USB3.0埠21a and USB2.0埠21b are judged. The IDs (PIDs) are the same only when paired, or the VID and PID of each USB3.0埠21a and USB2.0埠21b are the same. In principle, after the USB device is scanned by the host, the ID and product ID of the provider can be read from the USB packet; therefore, by adding this judgment, the correctness of the pairing of USB3.0 and USB2.0 can be ensured.

For example, if it is applied to another USB3.0 hub and then plugged into the serial connection architecture of the USB3.0 hub, it is determined by the above two kinds of matching relationship to find out the paired USB 3.0 port of the new serial USB3.0 hub and USB2.0埠.

As can be seen from the above description, whether the host uses the USB 3.0 controller as shown in FIG. 2A or FIG. 5A, after the host 10 operating system scans the peripheral device, the USB 3.0 hub 20 can be scanned by the operating system as long as the pairing of the present invention is performed. The USB2.0 hub 20b that is reflected later is paired with the USB 3.0 hub 20a, so as shown in FIG. 1, when the USB 3.0 device 40 is plugged into the first USB 3.0 socket 21, the host 10 scans out FIG. 2C. The result of FIG. 2D, FIG. 5C or FIG. 5D can correctly display the corresponding number corresponding to the USB3.0 socket to the operator, as shown in FIG. 6, so that the operating system of the host 10 misidentifies the USB3.0 device. For the USB 2.0 device, the detection system 60 can also display the correct number corresponding to the USB 3.0 socket 21 that is plugged into the USB 3.0 device 20.

In summary, the above-mentioned map generated by the present invention will automatically indicate a set of USB 2.0 hubs due to the USB 3.0 hub inserted in the host 10, and the true USB 3.0 hub will be reflected, that is, USB 2.0 The USB 2.0 settings of the hub are mapped to the USB 3.0 port of the USB 3.0 hub, so that when the detection system 60 determines that the operating system has marked one of the USB 2.0 sockets of the USB 2.0 hub, You can find USB3.0埠 according to its mapping relationship, and display the corresponding number corresponding to USB3.0埠 to the operator. Therefore, the present invention can solve the technical defect that the operator inserts the USB 3.0 hub into the USB 3.0 socket and displays the wrong number on the detection system.

10‧‧‧Host

11‧‧‧USB3.0 socket

20‧‧‧USB3.0 Hub

21‧‧‧USB3.0 socket

40‧‧‧USB3.0 device

60‧‧‧Detection system

Claims (6)

A USB3.0 hub USB port method, which obtains the USB tree relationship after the host scans; selects the USB port labeled USB hub from all USB ports; according to different USB transmission protocols, the group belongs to the USB3.0. USB3.0埠 of the hub and USB2.0埠 of the USB2.0 hub; and compare all USB3.0 hubs to the USB2.0 hub one by one. If the matching relationship is satisfied, a pair of pairs is generated; The table includes the correspondence between the USB 3.0 port and the USB 2.0 port, including a USB 3.0 hub to display the USB 3.0 port field, a USB 2.0 hub to display the USB 2.0 port field, and A field corresponding to the display of the USB 3.0 socket; and thereby, the map allows the USB 3.0 hub to display the corresponding USB port. In the USB 集线器 method of the USB 3.0 hub according to claim 1, the step of determining that the matching meets the matching includes: determining whether the current USB 3.0 hub and the same USB 2.0 hub belong to the same parent node; The same parent node, further judge whether the USB3.0 of the USB3.0 hub is the same as the USB2.0 of the USB2.0 hub; if it is the same number, further judge the current USB3.0 hub and USB2.0 hub Whether the connected USB3.0埠 and USB2.0埠 have the order correspondence; and if there is a corresponding order, the USB3.0 ports and USB2.0 belonging to the USB3.0 hub and the USB2.0 hub respectively. Paired separately, and Recorded in the map. In the USB 集线器 method of the USB 3.0 hub according to claim 1, the step of determining that the matching meets the matching includes: determining whether the current USB 3.0 hub and the same USB 2.0 hub belong to the same parent node; The same parent node, further judge whether the USB3.0 port of the current USB3.0 hub is the same as the USB2.0 port of the USB2.0 hub; if it is not the same number, further judge the USB3.0 of the current USB3.0 hub. Whether the number is an odd number; if it is an odd number, further determine whether the parent node of any USB2.0 hub is the current USB3.0 hub; if the same, further compare the USB3 hub and the USB3 connected to the USB2.0 hub. 0埠 and USB2.0埠 have a corresponding order; if there is a corresponding order, except for the USB3.0 port labeled USB2.0 hub, the other USB3.0 ports are connected to the USB2.0 of the USB2.0 hub. 0埠 are paired separately and recorded in the map. The USB 3.0 method of the USB 3.0 hub described in claim 2 or 3, before the USB 3.0 port of the USB 3.0 hub and the USB 2.0 port of the USB 2.0 hub are separately paired, further determine the current USB 3.0. The hub and the USB 2.0 hub's provider have the same ID before they are paired. The USB 3.0 method of the USB 3.0 hub described in claim 2 or 3, before the USB 3.0 port of the USB 3.0 hub and the USB 2.0 port of the USB 2.0 hub are separately paired, further determine the current USB 3.0. The hub and USB 2.0 hub have the same product ID before they are paired. The USB 3.0 method of the USB 3.0 hub described in claim 2 or 3, before the USB 3.0 port of the USB 3.0 hub and the USB 2.0 port of the USB 2.0 hub are separately paired, further determine the current USB 3.0. The hub and USB 2.0 hubs are paired only after the provider ID and product ID are the same.