Difference between revisions of "Unit Storage"

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----
 
----
  
−
'''Storage Devices'''
+
'''Ultibo Storage Interface unit'''
  
−
This unit provides both the Storage device interface and the generic USB mass storage driver.
+
This unit provides the generic Storage device interface used by all storage drivers.
−
 
+
−
'''USB Mass Storage Devices'''
+
−
 
+
−
The USB Mass Storage Class Control/Bulk/Interrupt (CBI) Transport specification is approved for use only with full-speed floppy disk drives. CBI shall not be used in high-speed capable devices, or in devices other than floppy disk drives. CBI shall not be used in devices that implement LSDFS. Usage of CBI for any new design is discouraged.
+
−
 
+
−
Therefore the majority of USB Mass Storage devices use the Bulk only interface.
+
−
 
+
−
USB mass storage class devices normally use the SCSI command set and therefore the USB storage driver consumes the SCSI unit for the protocol and command definitions. USB mass storage devices are registered directly as Storage devices not as SCSI devices.
+
  
 
=== Constants ===
 
=== Constants ===
 
----
 
----
  
−
''To be documented''
+
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''Storage specific constants''' <code> STORAGE_* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>STORAGE_NAME_PREFIX = 'Storage';</code>
 +
| Name prefix for Storage Devices
 +
|-
 +
|colspan="2"|&nbsp;
 +
|-
 +
| <code>STORAGE_STATUS_TIMER_INTERVAL = 1000;</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''Storage device type''' <code> STORAGE_TYPE_* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>STORAGE_TYPE_NONE = 0;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>STORAGE_TYPE_HDD = 1;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_TYPE_FDD = 2;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_TYPE_CDROM = 3;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_TYPE_OPTICAL = 4;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_TYPE_TAPE = 5;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_TYPE_REMOVABLE = 6;</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|&nbsp;
 +
|-
 +
| <code>STORAGE_TYPE_MAX = 6;</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''Storage device state''' <code> STORAGE_STATE_* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>STORAGE_STATE_EJECTED = 0;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>STORAGE_STATE_EJECTING = 1;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_STATE_INSERTING = 2;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_STATE_INSERTED = 3;</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|&nbsp;
 +
|-
 +
| <code>STORAGE_STATE_MAX = 3;</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''Storage device flag''' <code> STORAGE_FLAG_* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>STORAGE_FLAG_NONE = $00000000;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_REMOVABLE = $00000001;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_LBA48 = $00000002;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_NOT_READY = $00000004;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_NO_MEDIA = $00000008;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_READ_ONLY = $00000010;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_WRITE_ONLY = $00000020;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_ERASEABLE = $00000040;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_LOCKABLE = $00000080;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_LOCKED = $00000100;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_EJECTABLE = $00000200;</code>
 +
| &nbsp;
 +
|-
 +
| <code>STORAGE_FLAG_CHANGABLE = $00000400;</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''Storage device control code''' <code> STORAGE_CONTROL_* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>STORAGE_CONTROL_TEST_READY = 1;</code>
 +
| Test Unit Ready
 +
|-
 +
| <code>STORAGE_CONTROL_RESET = 2;</code>
 +
| Reset Device
 +
|-
 +
| <code>STORAGE_CONTROL_TEST_MEDIA = 3;</code>
 +
| Test No Media
 +
|-
 +
| <code>STORAGE_CONTROL_LOCK = 4;</code>
 +
| Lock Media
 +
|-
 +
| <code>STORAGE_CONTROL_UNLOCK = 5;</code>
 +
| Unlock Media
 +
|-
 +
| <code>STORAGE_CONTROL_EJECT = 6;</code>
 +
| Eject Media
 +
|-
 +
| <code>STORAGE_CONTROL_TEST_LOCKED = 7;</code>
 +
| Test Media Locked
 +
|-
 +
| <code>STORAGE_CONTROL_TEST_CHANGED = 8;</code>
 +
| Test Media Changed
 +
|-
 +
| <code>STORAGE_CONTROL_GET_VENDORID = 9;</code>
 +
| Get Vendor Id
 +
|-
 +
| <code>STORAGE_CONTROL_GET_PRODUCTID = 10;</code>
 +
| Get Product Id
 +
|-
 +
| <code>STORAGE_CONTROL_GET_SERIAL = 11;</code>
 +
| Get Serial No
 +
|-
 +
| <code>STORAGE_CONTROL_GET_REVISION = 12;</code>
 +
| Get Revision No
 +
|-
 +
| <code>STORAGE_CONTROL_GET_PRODUCT = 13;</code>
 +
| Get Product Name
 +
|-
 +
| <code>STORAGE_CONTROL_GET_MANUFACTURER = 14;</code>
 +
| Get Manufacturer Name
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''Storage logging''' <code> STORAGE_LOG_* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>STORAGE_LOG_LEVEL_DEBUG = LOG_LEVEL_DEBUG;</code>
 +
| Storage debugging messages
 +
|-
 +
| <code>STORAGE_LOG_LEVEL_INFO = LOG_LEVEL_INFO;</code>
 +
| Storage informational messages, such as a device being attached or detached
 +
|-
 +
| <code>STORAGE_LOG_LEVEL_WARN = LOG_LEVEL_WARN;</code>
 +
| Storage warning messages
 +
|-
 +
| <code>STORAGE_LOG_LEVEL_ERROR = LOG_LEVEL_ERROR;</code>
 +
| Storage error messages
 +
|-
 +
| <code>STORAGE_LOG_LEVEL_NONE = LOG_LEVEL_NONE;</code>
 +
| No Storage messages
 +
|-
 +
|}
 +
</div></div>
 +
<br />
  
 
=== Type definitions ===
 
=== Type definitions ===
 
----
 
----
  
−
''To be documented''
+
 
 +
'''Storage enumeration callback'''
 +
 
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>TStorageEnumerate = function(Storage:PStorageDevice; Data:Pointer):LongWord;</code>
 +
| style="width: 40%;"|
 +
|-
 +
|}
 +
 
 +
'''Storage notification callback'''
 +
 
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>TStorageNotification = function(Device:PDevice; Data:Pointer; Notification:LongWord):LongWord;</code>
 +
| style="width: 40%;"|
 +
|-
 +
|}
 +
 
 +
'''Storage device read'''
 +
 
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>TStorageDeviceRead = function(Storage:PStorageDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;</code>
 +
| style="width: 40%;"|
 +
|-
 +
|}
 +
 
 +
'''Storage device write'''
 +
 
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>TStorageDeviceWrite = function(Storage:PStorageDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;</code>
 +
| style="width: 40%;"|
 +
|-
 +
|}
 +
 
 +
'''Storage device erase'''
 +
 
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>TStorageDeviceErase = function(Storage:PStorageDevice; const Start,Count:Int64):LongWord;</code>
 +
| style="width: 40%;"|
 +
|-
 +
|}
 +
 
 +
'''Storage device control'''
 +
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>TStorageDeviceControl = function(Storage:PStorageDevice; Request:Integer; Argument1:PtrUInt; var Argument2:PtrUInt):LongWord;</code>
 +
| style="width: 40%;"|
 +
|-
 +
|}
 +
 +
'''Storage device'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
 +
<code>PStorageDevice = ^TStorageDevice;</code>
 +
 
 +
<code>TStorageDevice = record</code>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
|colspan="2"|''Device Properties''
 +
|-
 +
| <code>Device:TDevice;</code>
 +
| The Device entry for this Storage
 +
|-
 +
|colspan="2"|''Storage Properties''
 +
|-
 +
| <code>StorageId:LongWord;</code>
 +
| Unique Id of this Storage in the Storage table
 +
|-
 +
| <code>StorageState:LongWord;</code>
 +
| Storage state (eg STORAGE_STATE_INSERTED)
 +
|-
 +
| <code>DeviceRead:TStorageDeviceRead;</code>
 +
| A Device specific DeviceRead method implementing a standard Storage device interface
 +
|-
 +
| <code>DeviceWrite:TStorageDeviceWrite;</code>
 +
| A Device specific DeviceWrite method implementing a standard Storage device interface
 +
|-
 +
| <code>DeviceErase:TStorageDeviceErase;</code>
 +
| A Device specific DeviceErase method implementing a standard Storage device interface
 +
|-
 +
| <code>DeviceControl:TStorageDeviceControl;</code>
 +
| A Device specific DeviceControl method implementing a standard Storage device interface
 +
|-
 +
|colspan="2"|''Driver Properties''
 +
|-
 +
| <code>Lock:TMutexHandle;</code>
 +
| Storage lock
 +
|-
 +
| <code>TargetID:LongWord;</code>
 +
| SCSI Id
 +
|-
 +
| <code>TargetLUN:LongWord;</code>
 +
| LUN
 +
|-
 +
| <code>BlockSize:LongWord;</code>
 +
| Block Size
 +
|-
 +
| <code>BlockCount:Int64;</code>
 +
| Number of Blocks
 +
|-
 +
| <code>BlockShift:LongWord;</code>
 +
| Shift Count for Blocks to Bytes conversion (eg 9 for 512 byte blocks)
 +
|-
 +
| <code>Vendor:PChar;</code>
 +
| ATA Model, SCSI Vendor
 +
|-
 +
| <code>Product:PChar;</code>
 +
| ATA Serial No, SCSI Product
 +
|-
 +
| <code>Revision:PChar;</code>
 +
| Firmware Revision
 +
|-
 +
| <code>StatusTimer:TTimerHandle;</code>
 +
| Timer for status change detection
 +
|-
 +
|colspan="2"|''Statistics Properties''
 +
|-
 +
| <code>ReadCount:LongWord;</code>
 +
| &nbsp;
 +
|-
 +
| <code>ReadErrors:LongWord;</code>
 +
| &nbsp;
 +
|-
 +
| <code>WriteCount:LongWord;</code>
 +
| &nbsp;
 +
|-
 +
| <code>WriteErrors:LongWord;</code>
 +
| &nbsp;
 +
|-
 +
| <code>EraseCount:LongWord;</code>
 +
| &nbsp;
 +
|-
 +
| <code>EraseErrors:LongWord;</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''Internal Properties''
 +
|-
 +
| <code>Prev:PStorageDevice;</code>
 +
| Previous entry in Storage table
 +
|-
 +
| <code>Next:PStorageDevice;</code>
 +
| Next entry in Storage table
 +
|-
 +
|}
 +
</div></div> 
 +
<br />
  
 
=== Public variables ===
 
=== Public variables ===
 
----
 
----
  
−
''To be documented''
+
 
 +
'''Storage logging'''
 +
 
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>STORAGE_DEFAULT_LOG_LEVEL:LongWord = STORAGE_LOG_LEVEL_DEBUG;</code>
 +
| style="width: 40%;"|Minimum level for Storage messages. Only messages with level greater than or equal to this will be printed.
 +
|-
 +
|}
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>STORAGE_LOG_ENABLED:Boolean;</code>
 +
| style="width: 40%;"|
 +
|-
 +
|}
 +
<br />
  
 
=== Function declarations ===
 
=== Function declarations ===
Line 44: Line 394:
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
−
| To be documented
+
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
 
 +
'''Storage functions'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceRead(Storage:PStorageDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceWrite(Storage:PStorageDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceErase(Storage:PStorageDevice; const Start,Count:Int64):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceControl(Storage:PStorageDevice; Request:Integer; Argument1:PtrUInt; var Argument2:PtrUInt):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceSetState(Storage:PStorageDevice; State:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Set the state of the specified storage and send a notification</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Storage
 +
| The storage to set the state for
 +
|-
 +
! State
 +
| The new state to set and notify
 +
|-
 +
! Return
 +
| ERROR_SUCCESS if completed or another error code on failure
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceStartStatus(Storage:PStorageDevice; Interval:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Start status monitoring on the specified storage for insert/eject notifications</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Storage
 +
| The storage to start status monitoring for
 +
|-
 +
! Interval
 +
| The status monitoring interval in milliseconds
 +
|-
 +
! Return
 +
| ERROR_SUCCESS if completed or another error code on failure
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceStopStatus(Storage:PStorageDevice):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Stop status monitoring on the specified storage for insert/eject notifications</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Storage
 +
| The storage to stop status monitoring for
 +
|-
 +
! Return
 +
| ERROR_SUCCESS if completed or another error code on failure
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceCreate:PStorageDevice;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Create a new Storage entry</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Return
 +
| Pointer to new Storage entry or nil if storage could not be created
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceCreateEx(Size:LongWord):PStorageDevice;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Create a new Storage entry</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Size
 +
| Size in bytes to allocate for new storage (Including the storage entry)
 +
|-
 +
! Return
 +
| Pointer to new Storage entry or nil if storage could not be created
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceDestroy(Storage:PStorageDevice):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Destroy an existing Storage entry</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceRegister(Storage:PStorageDevice):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Register a new Storage in the Storage table</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceDeregister(Storage:PStorageDevice):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Deregister a Storage from the Storage table</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceFind(StorageId:LongWord):PStorageDevice;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceFindByDevice(Device:PDevice):PStorageDevice;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Find a Storage device by the matching DeviceData property</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Device
 +
| The device entry to match with the DeviceData value
 +
|-
 +
! Return
 +
| The Storage device matched or nil if none found
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceFindByName(const Name:String):PStorageDevice; inline;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceFindByDescription(const Description:String):PStorageDevice; inline;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceEnumerate(Callback:TStorageEnumerate; Data:Pointer):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceNotification(Storage:PStorageDevice; Callback:TStorageNotification; Data:Pointer; Notification,Flags:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
 
 +
'''Storage helper functions'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageGetCount:LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current storage count</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceCheck(Storage:PStorageDevice):PStorageDevice;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Check if the supplied Storage is in the storage table</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceTypeToString(StorageType:LongWord):String;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceStateToString(StorageState:LongWord):String;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function StorageDeviceStateToNotification(State:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Convert a Storage state value into the notification code for device notifications</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure StorageLog(Level:LongWord; Storage:PStorageDevice; const AText:String);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure StorageLogInfo(Storage:PStorageDevice; const AText:String); inline;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure StorageLogWarn(Storage:PStorageDevice; const AText:String); inline;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure StorageLogError(Storage:PStorageDevice; const AText:String); inline;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure StorageLogDebug(Storage:PStorageDevice; const AText:String); inline;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure StorageStatusTimer(Storage:PStorageDevice);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 
|-
 
|-
 
|}
 
|}

Latest revision as of 03:24, 29 March 2024

Return to Unit Reference


Description

Ultibo Storage Interface unit

This unit provides the generic Storage device interface used by all storage drivers.

Constants


Storage specific constants STORAGE_*
STORAGE_NAME_PREFIX = 'Storage'; Name prefix for Storage Devices
 
STORAGE_STATUS_TIMER_INTERVAL = 1000;  


Storage device type STORAGE_TYPE_*
STORAGE_TYPE_NONE = 0;  
STORAGE_TYPE_HDD = 1;  
STORAGE_TYPE_FDD = 2;  
STORAGE_TYPE_CDROM = 3;  
STORAGE_TYPE_OPTICAL = 4;  
STORAGE_TYPE_TAPE = 5;  
STORAGE_TYPE_REMOVABLE = 6;  
 
STORAGE_TYPE_MAX = 6;  


Storage device state STORAGE_STATE_*
STORAGE_STATE_EJECTED = 0;  
STORAGE_STATE_EJECTING = 1;  
STORAGE_STATE_INSERTING = 2;  
STORAGE_STATE_INSERTED = 3;  
 
STORAGE_STATE_MAX = 3;  


Storage device flag STORAGE_FLAG_*
STORAGE_FLAG_NONE = $00000000;  
STORAGE_FLAG_REMOVABLE = $00000001;  
STORAGE_FLAG_LBA48 = $00000002;  
STORAGE_FLAG_NOT_READY = $00000004;  
STORAGE_FLAG_NO_MEDIA = $00000008;  
STORAGE_FLAG_READ_ONLY = $00000010;  
STORAGE_FLAG_WRITE_ONLY = $00000020;  
STORAGE_FLAG_ERASEABLE = $00000040;  
STORAGE_FLAG_LOCKABLE = $00000080;  
STORAGE_FLAG_LOCKED = $00000100;  
STORAGE_FLAG_EJECTABLE = $00000200;  
STORAGE_FLAG_CHANGABLE = $00000400;  


Storage device control code STORAGE_CONTROL_*
STORAGE_CONTROL_TEST_READY = 1; Test Unit Ready
STORAGE_CONTROL_RESET = 2; Reset Device
STORAGE_CONTROL_TEST_MEDIA = 3; Test No Media
STORAGE_CONTROL_LOCK = 4; Lock Media
STORAGE_CONTROL_UNLOCK = 5; Unlock Media
STORAGE_CONTROL_EJECT = 6; Eject Media
STORAGE_CONTROL_TEST_LOCKED = 7; Test Media Locked
STORAGE_CONTROL_TEST_CHANGED = 8; Test Media Changed
STORAGE_CONTROL_GET_VENDORID = 9; Get Vendor Id
STORAGE_CONTROL_GET_PRODUCTID = 10; Get Product Id
STORAGE_CONTROL_GET_SERIAL = 11; Get Serial No
STORAGE_CONTROL_GET_REVISION = 12; Get Revision No
STORAGE_CONTROL_GET_PRODUCT = 13; Get Product Name
STORAGE_CONTROL_GET_MANUFACTURER = 14; Get Manufacturer Name


Storage logging STORAGE_LOG_*
STORAGE_LOG_LEVEL_DEBUG = LOG_LEVEL_DEBUG; Storage debugging messages
STORAGE_LOG_LEVEL_INFO = LOG_LEVEL_INFO; Storage informational messages, such as a device being attached or detached
STORAGE_LOG_LEVEL_WARN = LOG_LEVEL_WARN; Storage warning messages
STORAGE_LOG_LEVEL_ERROR = LOG_LEVEL_ERROR; Storage error messages
STORAGE_LOG_LEVEL_NONE = LOG_LEVEL_NONE; No Storage messages


Type definitions


Storage enumeration callback

TStorageEnumerate = function(Storage:PStorageDevice; Data:Pointer):LongWord;

Storage notification callback

TStorageNotification = function(Device:PDevice; Data:Pointer; Notification:LongWord):LongWord;

Storage device read

TStorageDeviceRead = function(Storage:PStorageDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;

Storage device write

TStorageDeviceWrite = function(Storage:PStorageDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;

Storage device erase

TStorageDeviceErase = function(Storage:PStorageDevice; const Start,Count:Int64):LongWord;

Storage device control

TStorageDeviceControl = function(Storage:PStorageDevice; Request:Integer; Argument1:PtrUInt; var Argument2:PtrUInt):LongWord;

Storage device

PStorageDevice = ^TStorageDevice;

TStorageDevice = record

Device Properties
Device:TDevice; The Device entry for this Storage
Storage Properties
StorageId:LongWord; Unique Id of this Storage in the Storage table
StorageState:LongWord; Storage state (eg STORAGE_STATE_INSERTED)
DeviceRead:TStorageDeviceRead; A Device specific DeviceRead method implementing a standard Storage device interface
DeviceWrite:TStorageDeviceWrite; A Device specific DeviceWrite method implementing a standard Storage device interface
DeviceErase:TStorageDeviceErase; A Device specific DeviceErase method implementing a standard Storage device interface
DeviceControl:TStorageDeviceControl; A Device specific DeviceControl method implementing a standard Storage device interface
Driver Properties
Lock:TMutexHandle; Storage lock
TargetID:LongWord; SCSI Id
TargetLUN:LongWord; LUN
BlockSize:LongWord; Block Size
BlockCount:Int64; Number of Blocks
BlockShift:LongWord; Shift Count for Blocks to Bytes conversion (eg 9 for 512 byte blocks)
Vendor:PChar; ATA Model, SCSI Vendor
Product:PChar; ATA Serial No, SCSI Product
Revision:PChar; Firmware Revision
StatusTimer:TTimerHandle; Timer for status change detection
Statistics Properties
ReadCount:LongWord;  
ReadErrors:LongWord;  
WriteCount:LongWord;  
WriteErrors:LongWord;  
EraseCount:LongWord;  
EraseErrors:LongWord;  
Internal Properties
Prev:PStorageDevice; Previous entry in Storage table
Next:PStorageDevice; Next entry in Storage table


Public variables


Storage logging

STORAGE_DEFAULT_LOG_LEVEL:LongWord = STORAGE_LOG_LEVEL_DEBUG; Minimum level for Storage messages. Only messages with level greater than or equal to this will be printed.
STORAGE_LOG_ENABLED:Boolean;


Function declarations


Initialization functions 

procedure StorageInit;
Description: To be documented
Note None documented


Storage functions 

function StorageDeviceRead(Storage:PStorageDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;
Description: To be documented
Note None documented 


function StorageDeviceWrite(Storage:PStorageDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;
Description: To be documented
Note None documented 


function StorageDeviceErase(Storage:PStorageDevice; const Start,Count:Int64):LongWord;
Description: To be documented
Note None documented 


function StorageDeviceControl(Storage:PStorageDevice; Request:Integer; Argument1:PtrUInt; var Argument2:PtrUInt):LongWord;
Description: To be documented
Note None documented 


function StorageDeviceSetState(Storage:PStorageDevice; State:LongWord):LongWord;
Description: Set the state of the specified storage and send a notification
Storage The storage to set the state for
State The new state to set and notify
Return ERROR_SUCCESS if completed or another error code on failure 


function StorageDeviceStartStatus(Storage:PStorageDevice; Interval:LongWord):LongWord;
Description: Start status monitoring on the specified storage for insert/eject notifications
Storage The storage to start status monitoring for
Interval The status monitoring interval in milliseconds
Return ERROR_SUCCESS if completed or another error code on failure 


function StorageDeviceStopStatus(Storage:PStorageDevice):LongWord;
Description: Stop status monitoring on the specified storage for insert/eject notifications
Storage The storage to stop status monitoring for
Return ERROR_SUCCESS if completed or another error code on failure 


function StorageDeviceCreate:PStorageDevice;
Description: Create a new Storage entry
Return Pointer to new Storage entry or nil if storage could not be created 


function StorageDeviceCreateEx(Size:LongWord):PStorageDevice;
Description: Create a new Storage entry
Size Size in bytes to allocate for new storage (Including the storage entry)
Return Pointer to new Storage entry or nil if storage could not be created 


function StorageDeviceDestroy(Storage:PStorageDevice):LongWord;
Description: Destroy an existing Storage entry
Note None documented 


function StorageDeviceRegister(Storage:PStorageDevice):LongWord;
Description: Register a new Storage in the Storage table
Note None documented 


function StorageDeviceDeregister(Storage:PStorageDevice):LongWord;
Description: Deregister a Storage from the Storage table
Note None documented 


function StorageDeviceFind(StorageId:LongWord):PStorageDevice;
Description: To be documented
Note None documented 


function StorageDeviceFindByDevice(Device:PDevice):PStorageDevice;
Description: Find a Storage device by the matching DeviceData property
Device The device entry to match with the DeviceData value
Return The Storage device matched or nil if none found 


function StorageDeviceFindByName(const Name:String):PStorageDevice; inline;
Description: To be documented
Note None documented 


function StorageDeviceFindByDescription(const Description:String):PStorageDevice; inline;
Description: To be documented
Note None documented 


function StorageDeviceEnumerate(Callback:TStorageEnumerate; Data:Pointer):LongWord;
Description: To be documented
Note None documented 


function StorageDeviceNotification(Storage:PStorageDevice; Callback:TStorageNotification; Data:Pointer; Notification,Flags:LongWord):LongWord;
Description: To be documented
Note None documented


Storage helper functions 

function StorageGetCount:LongWord;
Description: Get the current storage count
Note None documented 


function StorageDeviceCheck(Storage:PStorageDevice):PStorageDevice;
Description: Check if the supplied Storage is in the storage table
Note None documented 


function StorageDeviceTypeToString(StorageType:LongWord):String;
Description: To be documented
Note None documented 


function StorageDeviceStateToString(StorageState:LongWord):String;
Description: To be documented
Note None documented 


function StorageDeviceStateToNotification(State:LongWord):LongWord;
Description: Convert a Storage state value into the notification code for device notifications
Note None documented 


procedure StorageLog(Level:LongWord; Storage:PStorageDevice; const AText:String);
Description: To be documented
Note None documented 


procedure StorageLogInfo(Storage:PStorageDevice; const AText:String); inline;
Description: To be documented
Note None documented 


procedure StorageLogWarn(Storage:PStorageDevice; const AText:String); inline;
Description: To be documented
Note None documented 


procedure StorageLogError(Storage:PStorageDevice; const AText:String); inline;
Description: To be documented
Note None documented 


procedure StorageLogDebug(Storage:PStorageDevice; const AText:String); inline;
Description: To be documented
Note None documented 


procedure StorageStatusTimer(Storage:PStorageDevice);
Description: To be documented
Note None documented


Return to Unit Reference

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