CN108959130A - storage system based on embedded system - Google Patents
storage system based on embedded system Download PDFInfo
- Publication number
- CN108959130A CN108959130A CN201810405490.1A CN201810405490A CN108959130A CN 108959130 A CN108959130 A CN 108959130A CN 201810405490 A CN201810405490 A CN 201810405490A CN 108959130 A CN108959130 A CN 108959130A
- Authority
- CN
- China
- Prior art keywords
- hard disk
- storage system
- embedded system
- function
- request
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
Abstract
The invention discloses the storage systems based on embedded system, the calling of initialization and disk read-write driving including hard disk, development board based on ARM926E chip, according to the ATA hard-disk interface specification interface circuit of IDE hard disk, the present invention realizes the read-write to IDE hard disk, has reached the requirement of high-speed and high reliability.
Description
Technical field
What it is the present invention relates to embedded system storage system more particularly to a kind of memory based on embedded system is
System.
Background technique
Currently, embedded system applies day in fields such as long-range Supervisory control and data acquisition, Industry Control and E-consumers
Super extensive, people are easy the storage of embedded system to also proposed higher requirement therewith.The appearance of common FLASH memory
Not nearly enough use is measured, therefore is developed in the great Rong for being suitable for embedded system, the data-storage system change of high speed and high reliability
It must become more and more important.Hard disk is connect in embedded system general ide interface, the storage that can not only greatly expand embedded system is held
Amount, also easily can exchange data with general PC.
Summary of the invention
The present invention realizes the reading to IDE hard disk in view of the above problems, devise the storage system based on embedded system
It writes, has reached the requirement of high-speed and high reliability.
The present invention adopts the following technical scheme that realization:
Storage system based on embedded system, which is characterized in that initialization and disk read-write driving including hard disk
It calls；The wherein initialization operation of the hard disk has got through the channel of driving Yu topmost paper system, the initialization operation of hard disk
Steps are as follows:
1) hard disc apparatus driving registration；
2) hard disc request queue is initialized；
3) SSMC plot maps and configures the reading and writing period；
4) hard disk plot and interruption GPIO plot mapping；
5) it is interrupted to kernel log-in vector；
It 6) is hard disk distribution structure space；
7) the hard disc structure space is added in registration；
8) terminate.
Request queue in step 2 is associated with the respective queue association in kernel by function blk-init-queue.
Step 4, the ioremap function of kernel offer is driven through to complete plot mapping.
Step 5, it is hard disk application interrupt requests by request-irq function, and registers interrupt handling routine.
Step 6, the distribution structure space of hard disk needs that alloc-disk function is called to distribute.
The calling of disk read-write driving, since request handles function do-hd-request.
Technical solution of the present invention realize the utility model has the advantages that
The present invention realizes embedded system to IDE hard disk by the calling of the initialization of hard disk and disk read-write driving
Read-write, reached the requirement of high-speed and reliability.
Detailed description of the invention
Fig. 1 is hard disk initialization flow chart in the storage system the present invention is based on embedded system.
Specific embodiment
Technical solution of the present invention described in detail below.
Embodiment
Storage system based on embedded system, the calling of initialization and disk read-write driving including hard disk.It is entire to drive
Dynamic be from module-init is Driver Entry, has invoked the initialization function hd-init of hard disk, the initialization to hard disk is got through
With the channel of topmost paper system, the step of hard disk initialization is as follows:
1) hard disc apparatus driving registration；
2) hard disc request queue is initialized；
3) SSMC plot maps and configures the reading and writing period；
4) hard disk plot and interruption GPIO plot mapping；
5) it is interrupted to kernel log-in vector；
It 6) is hard disk distribution structure space；
7) the hard disc structure space is added in registration；
8) terminate.
IDE device driver must complete registration of the equipment in kernel during initialization, be driven through
Register-blkdev function completes major device number from this registered task to kernel hard disc apparatus and main equipment name.In IDE
During hard disk initialization, operating system provides a kernel calls function blk-init-queue, asks to complete block device
Ask the initialization of queue and the association with respective queue in kernel.According to the SSMC of ide interface, hard disk and select interruption GPIO's
Physical address is driven through the ioremap function of kernel offer to complete plot mapping.In hard disk initialization, also to pass through
Request-irq function is hard disk application interrupt requests, and registers interrupt handling routine.In linux kernel, use
Gendisk structural body carrys out table and seeks an independent fdisk, which is the structural body of a dynamic allocation, and driving cannot
This structural body oneself is distributed, needs that aloc-disk function is called to distribute, is assigned and then add-disk function is called
Registration, the initialization of hard disk is fully completed, entire to adjust when topmost paper system is written and read hard disk after initialization
Be since request handle function do-he-request.
Claims (6)
1. the storage system based on embedded system, which is characterized in that the tune of initialization and disk read-write driving including hard disk
With；The wherein initialization operation of the hard disk has got through the channel of driving Yu topmost paper system, the initialization operation step of hard disk
It is rapid as follows:
1) hard disc apparatus driving registration；
2) hard disc request queue is initialized；
3) SSMC plot maps and configures the reading and writing period；
4) hard disk plot and interruption GPIO plot mapping；
5) it is interrupted to kernel log-in vector；
It 6) is hard disk distribution structure space；
7) the hard disc structure space is added in registration；
8) terminate.
2. the storage system according to claim 1 based on embedded system, it is characterized in that: the request in the step 2
Queue is associated with the respective queue association in kernel by function blk-init-queue.
3. the storage system according to claim 1 based on embedded system, it is characterized in that: the step 4, is driven through
The ioremap function that kernel provides maps to complete plot.
4. the storage system according to claim 1 based on embedded system, it is characterized in that: the step 5, passes through
Request-irq function is hard disk application interrupt requests, and registers interrupt handling routine.
5. the storage system according to claim 1 based on embedded system, it is characterized in that: the step 6, point of hard disk
Distribution structure space needs that alloc-disk function is called to distribute.
6. the storage system according to claim 1 based on embedded system, it is characterized in that: disk read-write driving
It calls, since request handles function do-hd-request.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810405490.1A CN108959130A (en) | 2018-04-29 | 2018-04-29 | storage system based on embedded system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810405490.1A CN108959130A (en) | 2018-04-29 | 2018-04-29 | storage system based on embedded system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108959130A true CN108959130A (en) | 2018-12-07 |
Family
ID=64498950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810405490.1A Pending CN108959130A (en) | 2018-04-29 | 2018-04-29 | storage system based on embedded system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108959130A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1632769A (en) * | 2003-12-22 | 2005-06-29 | 英业达股份有限公司 | IDE equipment hot plug system and implementing method under Linux operating system |
| CN1632745A (en) * | 2003-12-22 | 2005-06-29 | 中国电子科技集团公司第三十研究所 | Operating method for filing system using multi-equipment with IDE interface |
| CN105700826A (en) * | 2015-12-31 | 2016-06-22 | 华为技术有限公司 | Virtualization method and device |
-
2018
- 2018-04-29 CN CN201810405490.1A patent/CN108959130A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1632769A (en) * | 2003-12-22 | 2005-06-29 | 英业达股份有限公司 | IDE equipment hot plug system and implementing method under Linux operating system |
| CN1632745A (en) * | 2003-12-22 | 2005-06-29 | 中国电子科技集团公司第三十研究所 | Operating method for filing system using multi-equipment with IDE interface |
| CN105700826A (en) * | 2015-12-31 | 2016-06-22 | 华为技术有限公司 | Virtualization method and device |
Non-Patent Citations (1)
| Title |
|---|
| 任晓丹孙俊杰: "IDE硬盘在准在线故障诊断系统中的应用研究", 《机床与液压》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |