Difference between revisions of "Unit MMC"

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<pre style="border: 0; padding-bottom:0px;">function SDGetSwitchValue(MMC:PMMCDevice; Value:LongWord):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SDGetSwitchValue(MMC:PMMCDevice; Value:LongWord):LongWord;</pre>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Extract a Switch field value ?rom the 512 bit SD Switch status</div>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Extract a Switch field value ?rom the 512 bit SD Switch status</div>
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'''SDHCI helper functions'''
 +
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">function SDHCIGetCount:LongWord; inline;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current SDHCI count</div>
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! '''Note'''
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| None documented
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<pre style="border: 0; padding-bottom:0px;">function SDHCIHostCheck(SDHCI:PSDHCIHost):PSDHCIHost;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Check if the supplied SDHCI is in the SDHCI table</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! '''Note'''
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| None documented
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<pre style="border: 0; padding-bottom:0px;">function SDHCIIsSPI(SDHCI:PSDHCIHost):Boolean;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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! '''Note'''
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| None documented
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 +
<pre style="border: 0; padding-bottom:0px;">function SDHCIGetVersion(SDHCI:PSDHCIHost):Word;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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<pre style="border: 0; padding-bottom:0px;">function SDHCIGetCommand(Command:Word):Word;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! '''Note'''
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<pre style="border: 0; padding-bottom:0px;">function SDHCIMakeCommand(Command,Flags:Word):Word;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! '''Note'''
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<pre style="border: 0; padding-bottom:0px;">function SDHCIMakeBlockSize(DMA,BlockSize:Word):Word;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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<pre style="border: 0; padding-bottom:0px;">function SDHCIDeviceTypeToString(SDHCIType:LongWord):String;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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! '''Note'''
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| None documented
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<pre style="border: 0; padding-bottom:0px;">function SDHCIDeviceStateToString(SDHCIState:LongWord):String;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 
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Revision as of 06:32, 12 October 2016

Return to Unit Reference


Description

This unit implements the standards based part of the SD/MMC specification including the standard SDHCI interfaces.

For each platform a SDHCI module needs to be provided that implements the platform specific parts of the SDHCI interface.

This is similar in model to USB and other interfaces in Ultibo, where the generic interface unit requires a platform specific module to register with it in order to communicate with platform specific devices.

The SD/MMC interfaces are 2 tier (ie Host and Device) whereas the USB interface is 3 tier (Host, Device and Driver).

Constants

To be documented

Type definitions

To be documented

Public variables

To be documented

Function declarations


Initialization functions

[Expand] 
procedure MMCInit;
Description: To be documented


[Expand] 
function MMCStart:LongWord;
Description: To be documented


[Expand] 
function MMCStop:LongWord;
Description: To be documented


[Expand] 
procedure MMCAsyncStart(SDHCI:PSDHCIHost);
Description: To be documented


MMC functions

[Expand] 
function MMCDeviceReadBlocks(MMC:PMMCDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceWriteBlocks(MMC:PMMCDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceEraseBlocks(MMC:PMMCDevice; const Start,Count:Int64):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceGoIdle(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSetClock(MMC:PMMCDevice; Clock:LongWord):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSetBusWidth(MMC:PMMCDevice; Width:LongWord):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSetBlockLength(MMC:PMMCDevice; Length:LongWord):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSetBlockCount(MMC:PMMCDevice; Count:LongWord; Relative:Boolean):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSetDriverStage(MMC:PMMCDevice; DriverStage:LongWord):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSelectCard(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceDeselectCard(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSwitch(MMC:PMMCDevice; Setting,Index,Value:Byte):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSendCardStatus(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSendOperationCondition(MMC:PMMCDevice; Probe:Boolean):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSendCardSpecific(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceDecodeCardSpecific(MMC:PMMCDevice):LongWord;
Description: Given a 128-bit response, decode to our card CSD structure


[Expand] 
function MMCDeviceSendCardIdentification(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSendAllCardIdentification(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceDecodeCardIdentification(MMC:PMMCDevice):LongWord;
Description: Given a 128-bit response, decode to our card CID structure


[Expand] 
function MMCDeviceGetExtendedCardSpecific(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSendExtendedCardSpecific(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceDecodeExtendedCardSpecific(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSetRelativeAddress(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSPISetCRC(MMC:PMMCDevice; Enable:Boolean):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSPIReadOperationCondition(MMC:PMMCDevice; HighCapacity:Boolean):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceInsert(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceRemove(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceInitialize(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceDeinitialize(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceGetCardDetect(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceGetWriteProtect(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSendCommand(MMC:PMMCDevice; Command:PMMCCommand):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceSetIOS(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceCreate:PMMCDevice;
Description: Create a new MMC entry


[Expand] 
function MMCDeviceCreateEx(Size:LongWord):PMMCDevice;
Description: Create a new MMC entry


[Expand] 
function MMCDeviceDestroy(MMC:PMMCDevice):LongWord;
Description: Destroy an existing MMC entry


[Expand] 
function MMCDeviceRegister(MMC:PMMCDevice):LongWord;
Description: Register a new MMC in the MMC table


[Expand] 
function MMCDeviceDeregister(MMC:PMMCDevice):LongWord;
Description: Deregister a MMC ?rom the MMC table


[Expand] 
function MMCDeviceFind(MMCId:LongWord):PMMCDevice;
Description: To be documented


[Expand] 
function MMCDeviceFindByName(const Name:String):PMMCDevice; inline;
Description: To be documented


[Expand] 
function MMCDeviceFindByDescription(const Description:String):PMMCDevice; inline;
Description: To be documented


[Expand] 
function MMCDeviceEnumerate(Callback:TMMCEnumerate; Data:Pointer):LongWord;
Description: To be documented


[Expand] 
function MMCDeviceNotification(MMC:PMMCDevice; Callback:TMMCNotification; Data:Pointer; Notification,Flags:LongWord):LongWord;
Description: To be documented


SD functions

[Expand] 
function SDDeviceSwitch(MMC:PMMCDevice; Mode,Group:Integer; Value:Byte; Buffer:Pointer):LongWord;
Description: To be documented


[Expand] 
function SDDeviceSwitchHighspeed(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceSetBusSpeed(MMC:PMMCDevice; Speed:LongWord):LongWord;
Description: To be documented


[Expand] 
function SDDeviceSetBusWidth(MMC:PMMCDevice; Width:LongWord):LongWord;
Description: To be documented


[Expand] 
function SDDeviceSendInterfaceCondition(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceSendOperationCondition(MMC:PMMCDevice; Probe:Boolean):LongWord;
Description: To be documented


[Expand] 
function SDDeviceGetCardSpecific(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceDecodeCardSpecific(MMC:PMMCDevice):LongWord;
Description: Given a 128-bit response, decode to our card CSD structure


[Expand] 
function SDDeviceGetCardIdentification(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceDecodeCardIdentification(MMC:PMMCDevice):LongWord;
Description: Given a 128-bit response, decode to our card CID structure


[Expand] 
function SDDeviceSendSDStatus(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceDecodeSDStatus(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceSendSDSwitch(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceDecodeSDSwitch(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceSendSDConfiguration(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceDecodeSDConfiguration(MMC:PMMCDevice):LongWord;
Description: Given a 64-bit response, decode to our card SCR structure


[Expand] 
function SDDeviceSendRelativeAddress(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDDeviceSendApplicationCommand(MMC:PMMCDevice; Command:PMMCCommand):LongWord;
Description: To be documented


SDIO functions

[Expand] 
function SDIODeviceReset(MMC:PMMCDevice):LongWord;
Description: To be documented


[Expand] 
function SDIODeviceSendOperationCondition(MMC:PMMCDevice; Probe:Boolean):LongWord;
Description: To be documented


[Expand] 
function SDIODeviceReadWriteDirect(MMC:PMMCDevice; Write:Boolean; Operation,Address:LongWord; Input:Byte; Output:PByte):LongWord;
Description: To be documented


[Expand] 
function SDIODeviceReadWriteExtended(MMC:PMMCDevice; Write:Boolean; Operation,Address:LongWord; Increment:Boolean; Buffer:Pointer; BlockCount,BlockSize:LongWord):LongWord;
Description: To be documented


SDHCI functions

[Expand] 
function SDHCIHostReset(SDHCI:PSDHCIHost; Mask:Byte):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostSetPower(SDHCI:PSDHCIHost; Power:Word):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostSetClock(SDHCI:PSDHCIHost; Clock:LongWord):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostTransferPIO(SDHCI:PSDHCIHost):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostTransferDMA(SDHCI:PSDHCIHost):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostFinishCommand(SDHCI:PSDHCIHost):LongWord;
Description: Called by Interrupt Command handler when an SDHCI_INT_RESPONSE is received


[Expand] 
function SDHCIHostFinishData(SDHCI:PSDHCIHost):LongWord;
Description: Called by Interrupt Data handler when data is received


[Expand] 
function SDHCIHostCommandInterrupt(SDHCI:PSDHCIHost; InterruptMask:LongWord; var ReturnMask:LongWord):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostDataInterrupt(SDHCI:PSDHCIHost; InterruptMask:LongWord):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostStart(SDHCI:PSDHCIHost):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostStop(SDHCI:PSDHCIHost):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostReadByte(SDHCI:PSDHCIHost; Reg:LongWord):Byte; inline;
Description: To be documented


[Expand] 
function SDHCIHostReadWord(SDHCI:PSDHCIHost; Reg:LongWord):Word; inline;
Description: To be documented


[Expand] 
function SDHCIHostReadLong(SDHCI:PSDHCIHost; Reg:LongWord):LongWord; inline;
Description: To be documented


[Expand] 
procedure SDHCIHostWriteByte(SDHCI:PSDHCIHost; Reg:LongWord; Value:Byte); inline;
Description: To be documented


[Expand] 
procedure SDHCIHostWriteWord(SDHCI:PSDHCIHost; Reg:LongWord; Value:Word); inline;
Description: To be documented


[Expand] 
procedure SDHCIHostWriteLong(SDHCI:PSDHCIHost; Reg:LongWord; Value:LongWord); inline;
Description: To be documented


[Expand] 
function SDHCIHostSetClockDivider(SDHCI:PSDHCIHost; Index:Integer; Divider:LongWord):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostSetControlRegister(SDHCI:PSDHCIHost):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostCreate:PSDHCIHost;
Description: Create a new SDHCI entry


[Expand] 
function SDHCIHostCreateEx(Size:LongWord):PSDHCIHost;
Description: Create a new SDHCI entry


[Expand] 
function SDHCIHostDestroy(SDHCI:PSDHCIHost):LongWord;
Description: Destroy an existing SDHCI entry


[Expand] 
function SDHCIHostRegister(SDHCI:PSDHCIHost):LongWord;
Description: Register a new SDHCI in the SDHCI table


[Expand] 
function SDHCIHostDeregister(SDHCI:PSDHCIHost):LongWord;
Description: Deregister a SDHCI ?rom the SDHCI table


[Expand] 
function SDHCIHostFind(SDHCIId:LongWord):PSDHCIHost;
Description: To be documented


[Expand] 
function SDHCIHostEnumerate(Callback:TSDHCIEnumerate; Data:Pointer):LongWord;
Description: To be documented


[Expand] 
function SDHCIHostNotification(SDHCI:PSDHCIHost; Callback:TSDHCINotification; Data:Pointer; Notification,Flags:LongWord):LongWord;
Description: To be documented


MMC helper functions

[Expand] 
function MMCGetCount:LongWord; inline;
Description: Get the current MMC count


[Expand] 
function MMCDeviceCheck(MMC:PMMCDevice):PMMCDevice;
Description: Check if the supplied MMC is in the MMC table


[Expand] 
function MMCIsSD(MMC:PMMCDevice):Boolean;
Description: To be documented


[Expand] 
function MMCGetCIDValue(MMC:PMMCDevice; Version,Value:LongWord):LongWord;
Description: Extract a CID field value ?rom the 128 bit Card Identification register


[Expand] 
function MMCGetCSDValue(MMC:PMMCDevice; Value:LongWord):LongWord;
Description: Extract a CSD field value ?rom the 128 bit Card Specific register


[Expand] 
function MMCGetExtendedCSDValue(MMC:PMMCDevice; Value:LongWord):LongWord;
Description: Extract an Extended CSD field value ?rom the 512 byte Extended Card Specific register


[Expand] 
function MMCExtractBits(Buffer:Pointer; Start,Size:LongWord):LongWord;
Description: To be documented


[Expand] 
function MMCExtractBitsEx(Buffer:Pointer; Length,Start,Size:LongWord):LongWord;
Description: To be documented


[Expand] 
function MMCIsMultiCommand(Command:Word):Boolean;
Description: To be documented


[Expand] 
function MMCStatusToString(Status:LongWord):String;
Description: Translates an MMC status code into a string describing it


[Expand] 
function MMCDeviceTypeToString(MMCType:LongWord):String;
Description: To be documented


[Expand] 
function MMCDeviceStateToString(MMCState:LongWord):String;
Description: To be documented


[Expand] 
procedure MMCLog(Level:LongWord; MMC:PMMCDevice; const AText:String);
Description: To be documented


[Expand] 
procedure MMCLogInfo(MMC:PMMCDevice; const AText:String);
Description: To be documented


[Expand] 
procedure MMCLogError(MMC:PMMCDevice; const AText:String);
Description: To be documented


[Expand] 
procedure MMCLogDebug(MMC:PMMCDevice; const AText:String);
Description: To be documented


SD helper functions

[Expand] 
function SDGetMaxClock(MMC:PMMCDevice):LongWord;
Description: Determine the Maximum Clock (DTR) for the current card


[Expand] 
function SDGetCIDValue(MMC:PMMCDevice; Value:LongWord):LongWord;
Description: Extract a CID field value ?rom the 128 bit Card Identification register


[Expand] 
function SDGetCSDValue(MMC:PMMCDevice; Version,Value:LongWord):LongWord;
Description: Extract a CSD field value ?rom the 128 bit Card Specific register


[Expand] 
function SDGetSCRValue(MMC:PMMCDevice; Value:LongWord):LongWord;
Description: Extract an SCR field value ?rom the 64 bit SD Configuration register


[Expand] 
function SDGetSSRValue(MMC:PMMCDevice; Value:LongWord):LongWord;
Description: Extract an SCR field value ?rom the 512 bit SD Status register


[Expand] 
function SDGetSwitchValue(MMC:PMMCDevice; Value:LongWord):LongWord;
Description: Extract a Switch field value ?rom the 512 bit SD Switch status


SDHCI helper functions

[Expand] 
function SDHCIGetCount:LongWord; inline;
Description: Get the current SDHCI count


[Expand] 
function SDHCIHostCheck(SDHCI:PSDHCIHost):PSDHCIHost;
Description: Check if the supplied SDHCI is in the SDHCI table


[Expand] 
function SDHCIIsSPI(SDHCI:PSDHCIHost):Boolean;
Description: To be documented


[Expand] 
function SDHCIGetVersion(SDHCI:PSDHCIHost):Word;
Description: To be documented


[Expand] 
function SDHCIGetCommand(Command:Word):Word;
Description: To be documented


[Expand] 
function SDHCIMakeCommand(Command,Flags:Word):Word;
Description: To be documented


[Expand] 
function SDHCIMakeBlockSize(DMA,BlockSize:Word):Word;
Description: To be documented


[Expand] 
function SDHCIDeviceTypeToString(SDHCIType:LongWord):String;
Description: To be documented


[Expand] 
function SDHCIDeviceStateToString(SDHCIState:LongWord):String;
Description: To be documented


Return to Unit Reference

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