/* $Id: ATAController.h 28800 2010-04-27 08:22:32Z vboxsync $ */ /** @file * DevATA, DevAHCI - Shared ATA/ATAPI controller types. */ /* * Copyright (C) 2006-2008 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. */ #ifndef ___Storage_ATAController_h #define ___Storage_ATAController_h /******************************************************************************* * Header Files * *******************************************************************************/ #include #ifdef IN_RING3 # include # include #endif /* IN_RING3 */ #include #include #include "PIIX3ATABmDma.h" #include "ide.h" /******************************************************************************* * Defined Constants And Macros * *******************************************************************************/ /** * Maximum number of sectors to transfer in a READ/WRITE MULTIPLE request. * Set to 1 to disable multi-sector read support. According to the ATA * specification this must be a power of 2 and it must fit in an 8 bit * value. Thus the only valid values are 1, 2, 4, 8, 16, 32, 64 and 128. */ #define ATA_MAX_MULT_SECTORS 128 /** * Fastest PIO mode supported by the drive. */ #define ATA_PIO_MODE_MAX 4 /** * Fastest MDMA mode supported by the drive. */ #define ATA_MDMA_MODE_MAX 2 /** * Fastest UDMA mode supported by the drive. */ #define ATA_UDMA_MODE_MAX 6 /** ATAPI sense info size. */ #define ATAPI_SENSE_SIZE 64 /** The maximum number of release log entries per device. */ #define MAX_LOG_REL_ERRORS 1024 /* MediaEventStatus */ #define ATA_EVENT_STATUS_UNCHANGED 0 /**< medium event status not changed */ #define ATA_EVENT_STATUS_MEDIA_NEW 1 /**< new medium inserted */ #define ATA_EVENT_STATUS_MEDIA_REMOVED 2 /**< medium removed */ #define ATA_EVENT_STATUS_MEDIA_CHANGED 3 /**< medium was removed + new medium was inserted */ #define ATA_EVENT_STATUS_MEDIA_EJECT_REQUESTED 4 /**< medium eject requested (eject button pressed) */ /******************************************************************************* * Structures and Typedefs * *******************************************************************************/ typedef struct AHCIATADevState { /** Flag indicating whether the current command uses LBA48 mode. */ bool fLBA48; /** Flag indicating whether this drive implements the ATAPI command set. */ bool fATAPI; /** Set if this interface has asserted the IRQ. */ bool fIrqPending; /** Currently configured number of sectors in a multi-sector transfer. */ uint8_t cMultSectors; /** PCHS disk geometry. */ PDMMEDIAGEOMETRY PCHSGeometry; /** Total number of sectors on this disk. */ uint64_t cTotalSectors; /** Number of sectors to transfer per IRQ. */ uint32_t cSectorsPerIRQ; /** ATA/ATAPI register 1: feature (write-only). */ uint8_t uATARegFeature; /** ATA/ATAPI register 1: feature, high order byte. */ uint8_t uATARegFeatureHOB; /** ATA/ATAPI register 1: error (read-only). */ uint8_t uATARegError; /** ATA/ATAPI register 2: sector count (read/write). */ uint8_t uATARegNSector; /** ATA/ATAPI register 2: sector count, high order byte. */ uint8_t uATARegNSectorHOB; /** ATA/ATAPI register 3: sector (read/write). */ uint8_t uATARegSector; /** ATA/ATAPI register 3: sector, high order byte. */ uint8_t uATARegSectorHOB; /** ATA/ATAPI register 4: cylinder low (read/write). */ uint8_t uATARegLCyl; /** ATA/ATAPI register 4: cylinder low, high order byte. */ uint8_t uATARegLCylHOB; /** ATA/ATAPI register 5: cylinder high (read/write). */ uint8_t uATARegHCyl; /** ATA/ATAPI register 5: cylinder high, high order byte. */ uint8_t uATARegHCylHOB; /** ATA/ATAPI register 6: select drive/head (read/write). */ uint8_t uATARegSelect; /** ATA/ATAPI register 7: status (read-only). */ uint8_t uATARegStatus; /** ATA/ATAPI register 7: command (write-only). */ uint8_t uATARegCommand; /** ATA/ATAPI drive control register (write-only). */ uint8_t uATARegDevCtl; /** Currently active transfer mode (MDMA/UDMA) and speed. */ uint8_t uATATransferMode; /** Current transfer direction. */ uint8_t uTxDir; /** Index of callback for begin transfer. */ uint8_t iBeginTransfer; /** Index of callback for source/sink of data. */ uint8_t iSourceSink; /** Flag indicating whether the current command transfers data in DMA mode. */ bool fDMA; /** Set to indicate that ATAPI transfer semantics must be used. */ bool fATAPITransfer; /** Total ATA/ATAPI transfer size, shared PIO/DMA. */ uint32_t cbTotalTransfer; /** Elementary ATA/ATAPI transfer size, shared PIO/DMA. */ uint32_t cbElementaryTransfer; /** Current read/write buffer position, shared PIO/DMA. */ uint32_t iIOBufferCur; /** First element beyond end of valid buffer content, shared PIO/DMA. */ uint32_t iIOBufferEnd; /** ATA/ATAPI current PIO read/write transfer position. Not shared with DMA for safety reasons. */ uint32_t iIOBufferPIODataStart; /** ATA/ATAPI current PIO read/write transfer end. Not shared with DMA for safety reasons. */ uint32_t iIOBufferPIODataEnd; /** ATAPI current LBA position. */ uint32_t iATAPILBA; /** ATAPI current sector size. */ uint32_t cbATAPISector; /** ATAPI current command. */ uint8_t aATAPICmd[ATAPI_PACKET_SIZE]; /** ATAPI sense data. */ uint8_t abATAPISense[ATAPI_SENSE_SIZE]; /** HACK: Countdown till we report a newly unmounted drive as mounted. */ uint8_t cNotifiedMediaChange; /** The same for GET_EVENT_STATUS for mechanism */ volatile uint32_t MediaEventStatus; /** The status LED state for this drive. */ R3PTRTYPE(PPDMLED) pLed; #if HC_ARCH_BITS == 64 uint32_t uAlignment3; #endif /** Size of I/O buffer. */ uint32_t cbIOBuffer; /** Pointer to the I/O buffer. */ R3PTRTYPE(uint8_t *) pbIOBufferR3; /** Pointer to the I/O buffer. */ R0PTRTYPE(uint8_t *) pbIOBufferR0; /** Pointer to the I/O buffer. */ RCPTRTYPE(uint8_t *) pbIOBufferRC; RTRCPTR Aligmnent1; /**< Align the statistics at an 8-byte boundrary. */ /* * No data that is part of the saved state after this point!!!!! */ /* Release statistics: number of ATA DMA commands. */ STAMCOUNTER StatATADMA; /* Release statistics: number of ATA PIO commands. */ STAMCOUNTER StatATAPIO; /* Release statistics: number of ATAPI PIO commands. */ STAMCOUNTER StatATAPIDMA; /* Release statistics: number of ATAPI PIO commands. */ STAMCOUNTER StatATAPIPIO; #ifdef VBOX_INSTRUMENT_DMA_WRITES /* Release statistics: number of DMA sector writes and the time spent. */ STAMPROFILEADV StatInstrVDWrites; #endif /** Statistics: number of read operations and the time spent reading. */ STAMPROFILEADV StatReads; /** Statistics: number of bytes read. */ R3PTRTYPE(PSTAMCOUNTER) pStatBytesRead; #if HC_ARCH_BITS == 64 uint64_t uAlignment4; #endif /** Statistics: number of write operations and the time spent writing. */ STAMPROFILEADV StatWrites; /** Statistics: number of bytes written. */ R3PTRTYPE(PSTAMCOUNTER) pStatBytesWritten; #if HC_ARCH_BITS == 64 uint64_t uAlignment5; #endif /** Statistics: number of flush operations and the time spend flushing. */ STAMPROFILE StatFlushes; /** Enable passing through commands directly to the ATAPI drive. */ bool fATAPIPassthrough; /** Number of errors we've reported to the release log. * This is to prevent flooding caused by something going horribly wrong. * this value against MAX_LOG_REL_ERRORS in places likely to cause floods * like the ones we currently seeing on the linux smoke tests (2006-11-10). */ uint32_t cErrors; /** Timestamp of last started command. 0 if no command pending. */ uint64_t u64CmdTS; /** Pointer to the attached driver's base interface. */ R3PTRTYPE(PPDMIBASE) pDrvBase; /** Pointer to the attached driver's block interface. */ R3PTRTYPE(PPDMIBLOCK) pDrvBlock; /** Pointer to the attached driver's block bios interface. */ R3PTRTYPE(PPDMIBLOCKBIOS) pDrvBlockBios; /** Pointer to the attached driver's mount interface. * This is NULL if the driver isn't a removable unit. */ R3PTRTYPE(PPDMIMOUNT) pDrvMount; /** The base interface. */ PDMIBASE IBase; /** The block port interface. */ PDMIBLOCKPORT IPort; /** The mount notify interface. */ PDMIMOUNTNOTIFY IMountNotify; /** The LUN #. */ RTUINT iLUN; #if HC_ARCH_BITS == 64 RTUINT Alignment2; /**< Align pDevInsR3 correctly. */ #endif /** Pointer to device instance. */ PPDMDEVINSR3 pDevInsR3; /** Pointer to controller instance. */ R3PTRTYPE(struct AHCIATACONTROLLER *) pControllerR3; /** Pointer to device instance. */ PPDMDEVINSR0 pDevInsR0; /** Pointer to controller instance. */ R0PTRTYPE(struct AHCIATACONTROLLER *) pControllerR0; /** Pointer to device instance. */ PPDMDEVINSRC pDevInsRC; /** Pointer to controller instance. */ RCPTRTYPE(struct AHCIATACONTROLLER *) pControllerRC; } AHCIATADevState; typedef struct AHCIATATransferRequest { uint8_t iIf; uint8_t iBeginTransfer; uint8_t iSourceSink; uint32_t cbTotalTransfer; uint8_t uTxDir; } AHCIATATransferRequest; typedef struct AHCIATAAbortRequest { uint8_t iIf; bool fResetDrive; } AHCIATAAbortRequest; typedef enum { /** Begin a new transfer. */ AHCIATA_AIO_NEW = 0, /** Continue a DMA transfer. */ AHCIATA_AIO_DMA, /** Continue a PIO transfer. */ AHCIATA_AIO_PIO, /** Reset the drives on current controller, stop all transfer activity. */ AHCIATA_AIO_RESET_ASSERTED, /** Reset the drives on current controller, resume operation. */ AHCIATA_AIO_RESET_CLEARED, /** Abort the current transfer of a particular drive. */ AHCIATA_AIO_ABORT } AHCIATAAIO; typedef struct AHCIATARequest { AHCIATAAIO ReqType; union { AHCIATATransferRequest t; AHCIATAAbortRequest a; } u; } AHCIATARequest; typedef struct AHCIATACONTROLLER { /** The base of the first I/O Port range. */ RTIOPORT IOPortBase1; /** The base of the second I/O Port range. (0 if none) */ RTIOPORT IOPortBase2; /** The assigned IRQ. */ RTUINT irq; /** Access critical section */ PDMCRITSECT lock; /** Selected drive. */ uint8_t iSelectedIf; /** The interface on which to handle async I/O. */ uint8_t iAIOIf; /** The state of the async I/O thread. */ uint8_t uAsyncIOState; /** Flag indicating whether the next transfer is part of the current command. */ bool fChainedTransfer; /** Set when the reset processing is currently active on this controller. */ bool fReset; /** Flag whether the current transfer needs to be redone. */ bool fRedo; /** Flag whether the redo suspend has been finished. */ bool fRedoIdle; /** Flag whether the DMA operation to be redone is the final transfer. */ bool fRedoDMALastDesc; /** The BusMaster DMA state. */ BMDMAState BmDma; /** Pointer to first DMA descriptor. */ RTGCPHYS32 pFirstDMADesc; /** Pointer to last DMA descriptor. */ RTGCPHYS32 pLastDMADesc; /** Pointer to current DMA buffer (for redo operations). */ RTGCPHYS32 pRedoDMABuffer; /** Size of current DMA buffer (for redo operations). */ uint32_t cbRedoDMABuffer; /** The ATA/ATAPI interfaces of this controller. */ AHCIATADevState aIfs[2]; /** Pointer to device instance. */ PPDMDEVINSR3 pDevInsR3; /** Pointer to device instance. */ PPDMDEVINSR0 pDevInsR0; /** Pointer to device instance. */ PPDMDEVINSRC pDevInsRC; /** Set when the destroying the device instance and the thread must exit. */ uint32_t volatile fShutdown; /** The async I/O thread handle. NIL_RTTHREAD if no thread. */ RTTHREAD AsyncIOThread; /** The event semaphore the thread is waiting on for requests. */ RTSEMEVENT AsyncIOSem; /** The request queue for the AIO thread. One element is always unused. */ AHCIATARequest aAsyncIORequests[4]; /** The position at which to insert a new request for the AIO thread. */ uint8_t AsyncIOReqHead; /** The position at which to get a new request for the AIO thread. */ uint8_t AsyncIOReqTail; /** Whether to call RTThreadUserSignal and PDMDevHlpAsyncNotificationCompleted * when idle. Before setting this, call RTThreadUserReset. */ bool volatile fSignalIdle; uint8_t Alignment3[1]; /**< Explicit padding of the 1 byte gap. */ /** Magic delay before triggering interrupts in DMA mode. */ uint32_t DelayIRQMillies; /** The mutex protecting the request queue. */ RTSEMMUTEX AsyncIORequestMutex; /** The event semaphore the thread is waiting on during suspended I/O. */ RTSEMEVENT SuspendIOSem; #if 0 /*HC_ARCH_BITS == 32*/ uint32_t Alignment0; #endif /* Statistics */ STAMCOUNTER StatAsyncOps; uint64_t StatAsyncMinWait; uint64_t StatAsyncMaxWait; STAMCOUNTER StatAsyncTimeUS; STAMPROFILEADV StatAsyncTime; STAMPROFILE StatLockWait; } AHCIATACONTROLLER, *PAHCIATACONTROLLER; #ifndef VBOX_DEVICE_STRUCT_TESTCASE #define ATADEVSTATE_2_CONTROLLER(pIf) ( (pIf)->CTX_SUFF(pController) ) #define ATADEVSTATE_2_DEVINS(pIf) ( (pIf)->CTX_SUFF(pDevIns) ) #define CONTROLLER_2_DEVINS(pController) ( (pController)->CTX_SUFF(pDevIns) ) #define PDMIBASE_2_ATASTATE(pInterface) ( (AHCIATADevState *)((uintptr_t)(pInterface) - RT_OFFSETOF(AHCIATADevState, IBase)) ) /******************************************************************************* * Internal Functions * ******************************************************************************/ RT_C_DECLS_BEGIN int ataControllerIOPortWrite1(PAHCIATACONTROLLER pCtl, RTIOPORT Port, uint32_t u32, unsigned cb); int ataControllerIOPortRead1(PAHCIATACONTROLLER pCtl, RTIOPORT Port, uint32_t *u32, unsigned cb); int ataControllerIOPortWriteStr1(PAHCIATACONTROLLER pCtl, RTIOPORT Port, RTGCPTR *pGCPtrSrc, PRTGCUINTREG pcTransfer, unsigned cb); int ataControllerIOPortReadStr1(PAHCIATACONTROLLER pCtl, RTIOPORT Port, RTGCPTR *pGCPtrDst, PRTGCUINTREG pcTransfer, unsigned cb); int ataControllerIOPortWrite2(PAHCIATACONTROLLER pCtl, RTIOPORT Port, uint32_t u32, unsigned cb); int ataControllerIOPortRead2(PAHCIATACONTROLLER pCtl, RTIOPORT Port, uint32_t *u32, unsigned cb); int ataControllerBMDMAIOPortRead(PAHCIATACONTROLLER pCtl, RTIOPORT Port, uint32_t *pu32, unsigned cb); int ataControllerBMDMAIOPortWrite(PAHCIATACONTROLLER pCtl, RTIOPORT Port, uint32_t u32, unsigned cb); RT_C_DECLS_END #ifdef IN_RING3 /** * Initialize a controller state. * * @returns VBox status code. * @param pDevIns Pointer to the device instance which creates a controller. * @param pCtl Pointer to the unitialized ATA controller structure. * @param pDrvBaseMaster Pointer to the base driver interface which acts as the master. * @param pDrvBaseSlave Pointer to the base driver interface which acts as the slave. * @param pcbSSMState Where to store the size of the device state for loading/saving. * @param szName Name of the controller (Used to initialize the critical section). */ int ataControllerInit(PPDMDEVINS pDevIns, PAHCIATACONTROLLER pCtl, PPDMIBASE pDrvBaseMaster, PPDMIBASE pDrvBaseSlave, uint32_t *pcbSSMState, const char *szName, PPDMLED pLed, PSTAMCOUNTER pStatBytesRead, PSTAMCOUNTER pStatBytesWritten); /** * Free all allocated resources for one controller instance. * * @returns VBox status code. * @param pCtl The controller instance. */ int ataControllerDestroy(PAHCIATACONTROLLER pCtl); /** * Tests if the controller is idle, leaving the PDM notifications on if busy. * * @returns true if idle, false if idle. * @param pCtl the controller instance. */ bool ataControllerIsIdle(PAHCIATACONTROLLER pCtl); /** * Reset a controller instance to an initial state. * * @returns VBox status code. * @param pCtl Pointer to the controller. */ void ataControllerReset(PAHCIATACONTROLLER pCtl); /** * Resume operation of an controller. * * @returns nothing * @param pCtl The controller instance. */ void ataControllerResume(PAHCIATACONTROLLER pCtl); /** * Relocate neccessary pointers. * * @returns nothing. * @param pCtl The controller instance. * @param offDelta The relocation delta relative to the old location. */ void ataControllerRelocate(PAHCIATACONTROLLER pCtl, RTGCINTPTR offDelta); /** * Execute state save operation. * * @returns VBox status code. * @param pCtl The controller instance. * @param pSSM SSM operation handle. */ int ataControllerSaveExec(PAHCIATACONTROLLER pCtl, PSSMHANDLE pSSM); /** * Excute state load operation. * * @returns VBox status code. * @param pCtl The controller instance. * @param pSSM SSM operation handle. */ int ataControllerLoadExec(PAHCIATACONTROLLER pCtl, PSSMHANDLE pSSM); #endif /* IN_RING3 */ #endif /* !VBOX_DEVICE_STRUCT_TESTCASE */ #endif /* !___Storage_ATAController_h */