ata #2
@ -18,3 +18,10 @@ static inline uint8_t inb(uint16_t port)
|
|||||||
asm volatile("inb %1, %0" : "=a"(ret) : "Nd"(port));
|
asm volatile("inb %1, %0" : "=a"(ret) : "Nd"(port));
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static inline uint16_t inw(uint16_t port)
|
||||||
|
{
|
||||||
|
uint16_t ret;
|
||||||
|
asm volatile("inw %w1, %0" : "=a"(ret) : "Nd"(port));
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|||||||
501
drivers/ata.c
501
drivers/ata.c
@ -2,70 +2,487 @@
|
|||||||
#include "io.h"
|
#include "io.h"
|
||||||
#include "kernel.h"
|
#include "kernel.h"
|
||||||
#include "klibc.h"
|
#include "klibc.h"
|
||||||
|
#include "kthread.h"
|
||||||
|
|
||||||
static struct ata_drive drives[4];
|
// from
|
||||||
|
// https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/ata/ns-ata-_identify_device_data
|
||||||
|
struct _IDENTIFY_DEVICE_DATA {
|
||||||
|
struct {
|
||||||
|
uint16_t Reserved1 : 1;
|
||||||
|
uint16_t Retired3 : 1;
|
||||||
|
uint16_t ResponseIncomplete : 1;
|
||||||
|
uint16_t Retired2 : 3;
|
||||||
|
uint16_t FixedDevice : 1;
|
||||||
|
uint16_t RemovableMedia : 1;
|
||||||
|
uint16_t Retired1 : 7;
|
||||||
|
uint16_t DeviceType : 1;
|
||||||
|
} GeneralConfiguration;
|
||||||
|
uint16_t NumCylinders;
|
||||||
|
uint16_t SpecificConfiguration;
|
||||||
|
uint16_t NumHeads;
|
||||||
|
uint16_t Retired1[2];
|
||||||
|
uint16_t NumSectorsPerTrack;
|
||||||
|
uint16_t VendorUnique1[3];
|
||||||
|
uint8_t SerialNumber[20];
|
||||||
|
uint16_t Retired2[2];
|
||||||
|
uint16_t Obsolete1;
|
||||||
|
uint8_t FirmwareRevision[8];
|
||||||
|
uint8_t ModelNumber[40];
|
||||||
|
uint8_t MaximumBlockTransfer;
|
||||||
|
uint8_t VendorUnique2;
|
||||||
|
struct {
|
||||||
|
uint16_t FeatureSupported : 1;
|
||||||
|
uint16_t Reserved : 15;
|
||||||
|
} TrustedComputing;
|
||||||
|
struct {
|
||||||
|
uint8_t CurrentLongPhysicalSectorAlignment : 2;
|
||||||
|
uint8_t ReservedByte49 : 6;
|
||||||
|
uint8_t DmaSupported : 1;
|
||||||
|
uint8_t LbaSupported : 1;
|
||||||
|
uint8_t IordyDisable : 1;
|
||||||
|
uint8_t IordySupported : 1;
|
||||||
|
uint8_t Reserved1 : 1;
|
||||||
|
uint8_t StandybyTimerSupport : 1;
|
||||||
|
uint8_t Reserved2 : 2;
|
||||||
|
uint16_t ReservedWord50;
|
||||||
|
} Capabilities;
|
||||||
|
uint16_t ObsoleteWords51[2];
|
||||||
|
uint16_t TranslationFieldsValid : 3;
|
||||||
|
uint16_t Reserved3 : 5;
|
||||||
|
uint16_t FreeFallControlSensitivity : 8;
|
||||||
|
uint16_t NumberOfCurrentCylinders;
|
||||||
|
uint16_t NumberOfCurrentHeads;
|
||||||
|
uint16_t CurrentSectorsPerTrack;
|
||||||
|
uint32_t CurrentSectorCapacity;
|
||||||
|
uint8_t CurrentMultiSectorSetting;
|
||||||
|
uint8_t MultiSectorSettingValid : 1;
|
||||||
|
uint8_t ReservedByte59 : 3;
|
||||||
|
uint8_t SanitizeFeatureSupported : 1;
|
||||||
|
uint8_t CryptoScrambleExtCommandSupported : 1;
|
||||||
|
uint8_t OverwriteExtCommandSupported : 1;
|
||||||
|
uint8_t BlockEraseExtCommandSupported : 1;
|
||||||
|
uint32_t UserAddressableSectors;
|
||||||
|
uint16_t ObsoleteWord62;
|
||||||
|
uint16_t MultiWordDMASupport : 8;
|
||||||
|
uint16_t MultiWordDMAActive : 8;
|
||||||
|
uint16_t AdvancedPIOModes : 8;
|
||||||
|
uint16_t ReservedByte64 : 8;
|
||||||
|
uint16_t MinimumMWXferCycleTime;
|
||||||
|
uint16_t RecommendedMWXferCycleTime;
|
||||||
|
uint16_t MinimumPIOCycleTime;
|
||||||
|
uint16_t MinimumPIOCycleTimeIORDY;
|
||||||
|
struct {
|
||||||
|
uint16_t ZonedCapabilities : 2;
|
||||||
|
uint16_t NonVolatileWriteCache : 1;
|
||||||
|
uint16_t ExtendedUserAddressableSectorsSupported : 1;
|
||||||
|
uint16_t DeviceEncryptsAllUserData : 1;
|
||||||
|
uint16_t ReadZeroAfterTrimSupported : 1;
|
||||||
|
uint16_t Optional28BitCommandsSupported : 1;
|
||||||
|
uint16_t IEEE1667 : 1;
|
||||||
|
uint16_t DownloadMicrocodeDmaSupported : 1;
|
||||||
|
uint16_t SetMaxSetPasswordUnlockDmaSupported : 1;
|
||||||
|
uint16_t WriteBufferDmaSupported : 1;
|
||||||
|
uint16_t ReadBufferDmaSupported : 1;
|
||||||
|
uint16_t DeviceConfigIdentifySetDmaSupported : 1;
|
||||||
|
uint16_t LPSAERCSupported : 1;
|
||||||
|
uint16_t DeterministicReadAfterTrimSupported : 1;
|
||||||
|
uint16_t CFastSpecSupported : 1;
|
||||||
|
} AdditionalSupported;
|
||||||
|
uint16_t ReservedWords70[5];
|
||||||
|
uint16_t QueueDepth : 5;
|
||||||
|
uint16_t ReservedWord75 : 11;
|
||||||
|
struct {
|
||||||
|
uint16_t Reserved0 : 1;
|
||||||
|
uint16_t SataGen1 : 1;
|
||||||
|
uint16_t SataGen2 : 1;
|
||||||
|
uint16_t SataGen3 : 1;
|
||||||
|
uint16_t Reserved1 : 4;
|
||||||
|
uint16_t NCQ : 1;
|
||||||
|
uint16_t HIPM : 1;
|
||||||
|
uint16_t PhyEvents : 1;
|
||||||
|
uint16_t NcqUnload : 1;
|
||||||
|
uint16_t NcqPriority : 1;
|
||||||
|
uint16_t HostAutoPS : 1;
|
||||||
|
uint16_t DeviceAutoPS : 1;
|
||||||
|
uint16_t ReadLogDMA : 1;
|
||||||
|
uint16_t Reserved2 : 1;
|
||||||
|
uint16_t CurrentSpeed : 3;
|
||||||
|
uint16_t NcqStreaming : 1;
|
||||||
|
uint16_t NcqQueueMgmt : 1;
|
||||||
|
uint16_t NcqReceiveSend : 1;
|
||||||
|
uint16_t DEVSLPtoReducedPwrState : 1;
|
||||||
|
uint16_t Reserved3 : 8;
|
||||||
|
} SerialAtaCapabilities;
|
||||||
|
struct {
|
||||||
|
uint16_t Reserved0 : 1;
|
||||||
|
uint16_t NonZeroOffsets : 1;
|
||||||
|
uint16_t DmaSetupAutoActivate : 1;
|
||||||
|
uint16_t DIPM : 1;
|
||||||
|
uint16_t InOrderData : 1;
|
||||||
|
uint16_t HardwareFeatureControl : 1;
|
||||||
|
uint16_t SoftwareSettingsPreservation : 1;
|
||||||
|
uint16_t NCQAutosense : 1;
|
||||||
|
uint16_t DEVSLP : 1;
|
||||||
|
uint16_t HybridInformation : 1;
|
||||||
|
uint16_t Reserved1 : 6;
|
||||||
|
} SerialAtaFeaturesSupported;
|
||||||
|
struct {
|
||||||
|
uint16_t Reserved0 : 1;
|
||||||
|
uint16_t NonZeroOffsets : 1;
|
||||||
|
uint16_t DmaSetupAutoActivate : 1;
|
||||||
|
uint16_t DIPM : 1;
|
||||||
|
uint16_t InOrderData : 1;
|
||||||
|
uint16_t HardwareFeatureControl : 1;
|
||||||
|
uint16_t SoftwareSettingsPreservation : 1;
|
||||||
|
uint16_t DeviceAutoPS : 1;
|
||||||
|
uint16_t DEVSLP : 1;
|
||||||
|
uint16_t HybridInformation : 1;
|
||||||
|
uint16_t Reserved1 : 6;
|
||||||
|
} SerialAtaFeaturesEnabled;
|
||||||
|
uint16_t MajorRevision;
|
||||||
|
uint16_t MinorRevision;
|
||||||
|
struct {
|
||||||
|
uint16_t SmartCommands : 1;
|
||||||
|
uint16_t SecurityMode : 1;
|
||||||
|
uint16_t RemovableMediaFeature : 1;
|
||||||
|
uint16_t PowerManagement : 1;
|
||||||
|
uint16_t Reserved1 : 1;
|
||||||
|
uint16_t WriteCache : 1;
|
||||||
|
uint16_t LookAhead : 1;
|
||||||
|
uint16_t ReleaseInterrupt : 1;
|
||||||
|
uint16_t ServiceInterrupt : 1;
|
||||||
|
uint16_t DeviceReset : 1;
|
||||||
|
uint16_t HostProtectedArea : 1;
|
||||||
|
uint16_t Obsolete1 : 1;
|
||||||
|
uint16_t WriteBuffer : 1;
|
||||||
|
uint16_t ReadBuffer : 1;
|
||||||
|
uint16_t Nop : 1;
|
||||||
|
uint16_t Obsolete2 : 1;
|
||||||
|
uint16_t DownloadMicrocode : 1;
|
||||||
|
uint16_t DmaQueued : 1;
|
||||||
|
uint16_t Cfa : 1;
|
||||||
|
uint16_t AdvancedPm : 1;
|
||||||
|
uint16_t Msn : 1;
|
||||||
|
uint16_t PowerUpInStandby : 1;
|
||||||
|
uint16_t ManualPowerUp : 1;
|
||||||
|
uint16_t Reserved2 : 1;
|
||||||
|
uint16_t SetMax : 1;
|
||||||
|
uint16_t Acoustics : 1;
|
||||||
|
uint16_t BigLba : 1;
|
||||||
|
uint16_t DeviceConfigOverlay : 1;
|
||||||
|
uint16_t FlushCache : 1;
|
||||||
|
uint16_t FlushCacheExt : 1;
|
||||||
|
uint16_t WordValid83 : 2;
|
||||||
|
uint16_t SmartErrorLog : 1;
|
||||||
|
uint16_t SmartSelfTest : 1;
|
||||||
|
uint16_t MediaSerialNumber : 1;
|
||||||
|
uint16_t MediaCardPassThrough : 1;
|
||||||
|
uint16_t StreamingFeature : 1;
|
||||||
|
uint16_t GpLogging : 1;
|
||||||
|
uint16_t WriteFua : 1;
|
||||||
|
uint16_t WriteQueuedFua : 1;
|
||||||
|
uint16_t WWN64Bit : 1;
|
||||||
|
uint16_t URGReadStream : 1;
|
||||||
|
uint16_t URGWriteStream : 1;
|
||||||
|
uint16_t ReservedForTechReport : 2;
|
||||||
|
uint16_t IdleWithUnloadFeature : 1;
|
||||||
|
uint16_t WordValid : 2;
|
||||||
|
} CommandSetSupport;
|
||||||
|
struct {
|
||||||
|
uint16_t SmartCommands : 1;
|
||||||
|
uint16_t SecurityMode : 1;
|
||||||
|
uint16_t RemovableMediaFeature : 1;
|
||||||
|
uint16_t PowerManagement : 1;
|
||||||
|
uint16_t Reserved1 : 1;
|
||||||
|
uint16_t WriteCache : 1;
|
||||||
|
uint16_t LookAhead : 1;
|
||||||
|
uint16_t ReleaseInterrupt : 1;
|
||||||
|
uint16_t ServiceInterrupt : 1;
|
||||||
|
uint16_t DeviceReset : 1;
|
||||||
|
uint16_t HostProtectedArea : 1;
|
||||||
|
uint16_t Obsolete1 : 1;
|
||||||
|
uint16_t WriteBuffer : 1;
|
||||||
|
uint16_t ReadBuffer : 1;
|
||||||
|
uint16_t Nop : 1;
|
||||||
|
uint16_t Obsolete2 : 1;
|
||||||
|
uint16_t DownloadMicrocode : 1;
|
||||||
|
uint16_t DmaQueued : 1;
|
||||||
|
uint16_t Cfa : 1;
|
||||||
|
uint16_t AdvancedPm : 1;
|
||||||
|
uint16_t Msn : 1;
|
||||||
|
uint16_t PowerUpInStandby : 1;
|
||||||
|
uint16_t ManualPowerUp : 1;
|
||||||
|
uint16_t Reserved2 : 1;
|
||||||
|
uint16_t SetMax : 1;
|
||||||
|
uint16_t Acoustics : 1;
|
||||||
|
uint16_t BigLba : 1;
|
||||||
|
uint16_t DeviceConfigOverlay : 1;
|
||||||
|
uint16_t FlushCache : 1;
|
||||||
|
uint16_t FlushCacheExt : 1;
|
||||||
|
uint16_t Resrved3 : 1;
|
||||||
|
uint16_t Words119_120Valid : 1;
|
||||||
|
uint16_t SmartErrorLog : 1;
|
||||||
|
uint16_t SmartSelfTest : 1;
|
||||||
|
uint16_t MediaSerialNumber : 1;
|
||||||
|
uint16_t MediaCardPassThrough : 1;
|
||||||
|
uint16_t StreamingFeature : 1;
|
||||||
|
uint16_t GpLogging : 1;
|
||||||
|
uint16_t WriteFua : 1;
|
||||||
|
uint16_t WriteQueuedFua : 1;
|
||||||
|
uint16_t WWN64Bit : 1;
|
||||||
|
uint16_t URGReadStream : 1;
|
||||||
|
uint16_t URGWriteStream : 1;
|
||||||
|
uint16_t ReservedForTechReport : 2;
|
||||||
|
uint16_t IdleWithUnloadFeature : 1;
|
||||||
|
uint16_t Reserved4 : 2;
|
||||||
|
} CommandSetActive;
|
||||||
|
uint16_t UltraDMASupport : 8;
|
||||||
|
uint16_t UltraDMAActive : 8;
|
||||||
|
struct {
|
||||||
|
uint16_t TimeRequired : 15;
|
||||||
|
uint16_t ExtendedTimeReported : 1;
|
||||||
|
} NormalSecurityEraseUnit;
|
||||||
|
struct {
|
||||||
|
uint16_t TimeRequired : 15;
|
||||||
|
uint16_t ExtendedTimeReported : 1;
|
||||||
|
} EnhancedSecurityEraseUnit;
|
||||||
|
uint16_t CurrentAPMLevel : 8;
|
||||||
|
uint16_t ReservedWord91 : 8;
|
||||||
|
uint16_t MasterPasswordID;
|
||||||
|
uint16_t HardwareResetResult;
|
||||||
|
uint16_t CurrentAcousticValue : 8;
|
||||||
|
uint16_t RecommendedAcousticValue : 8;
|
||||||
|
uint16_t StreamMinRequestSize;
|
||||||
|
uint16_t StreamingTransferTimeDMA;
|
||||||
|
uint16_t StreamingAccessLatencyDMAPIO;
|
||||||
|
uint32_t StreamingPerfGranularity;
|
||||||
|
uint32_t Max48BitLBA[2];
|
||||||
|
uint16_t StreamingTransferTime;
|
||||||
|
uint16_t DsmCap;
|
||||||
|
struct {
|
||||||
|
uint16_t LogicalSectorsPerPhysicalSector : 4;
|
||||||
|
uint16_t Reserved0 : 8;
|
||||||
|
uint16_t LogicalSectorLongerThan256Words : 1;
|
||||||
|
uint16_t MultipleLogicalSectorsPerPhysicalSector : 1;
|
||||||
|
uint16_t Reserved1 : 2;
|
||||||
|
} PhysicalLogicalSectorSize;
|
||||||
|
uint16_t InterSeekDelay;
|
||||||
|
uint16_t WorldWideName[4];
|
||||||
|
uint16_t ReservedForWorldWideName128[4];
|
||||||
|
uint16_t ReservedForTlcTechnicalReport;
|
||||||
|
uint16_t WordsPerLogicalSector[2];
|
||||||
|
struct {
|
||||||
|
uint16_t ReservedForDrqTechnicalReport : 1;
|
||||||
|
uint16_t WriteReadVerify : 1;
|
||||||
|
uint16_t WriteUncorrectableExt : 1;
|
||||||
|
uint16_t ReadWriteLogDmaExt : 1;
|
||||||
|
uint16_t DownloadMicrocodeMode3 : 1;
|
||||||
|
uint16_t FreefallControl : 1;
|
||||||
|
uint16_t SenseDataReporting : 1;
|
||||||
|
uint16_t ExtendedPowerConditions : 1;
|
||||||
|
uint16_t Reserved0 : 6;
|
||||||
|
uint16_t WordValid : 2;
|
||||||
|
} CommandSetSupportExt;
|
||||||
|
struct {
|
||||||
|
uint16_t ReservedForDrqTechnicalReport : 1;
|
||||||
|
uint16_t WriteReadVerify : 1;
|
||||||
|
uint16_t WriteUncorrectableExt : 1;
|
||||||
|
uint16_t ReadWriteLogDmaExt : 1;
|
||||||
|
uint16_t DownloadMicrocodeMode3 : 1;
|
||||||
|
uint16_t FreefallControl : 1;
|
||||||
|
uint16_t SenseDataReporting : 1;
|
||||||
|
uint16_t ExtendedPowerConditions : 1;
|
||||||
|
uint16_t Reserved0 : 6;
|
||||||
|
uint16_t Reserved1 : 2;
|
||||||
|
} CommandSetActiveExt;
|
||||||
|
uint16_t ReservedForExpandedSupportandActive[6];
|
||||||
|
uint16_t MsnSupport : 2;
|
||||||
|
uint16_t ReservedWord127 : 14;
|
||||||
|
struct {
|
||||||
|
uint16_t SecuritySupported : 1;
|
||||||
|
uint16_t SecurityEnabled : 1;
|
||||||
|
uint16_t SecurityLocked : 1;
|
||||||
|
uint16_t SecurityFrozen : 1;
|
||||||
|
uint16_t SecurityCountExpired : 1;
|
||||||
|
uint16_t EnhancedSecurityEraseSupported : 1;
|
||||||
|
uint16_t Reserved0 : 2;
|
||||||
|
uint16_t SecurityLevel : 1;
|
||||||
|
uint16_t Reserved1 : 7;
|
||||||
|
} SecurityStatus;
|
||||||
|
uint16_t ReservedWord129[31];
|
||||||
|
struct {
|
||||||
|
uint16_t MaximumCurrentInMA : 12;
|
||||||
|
uint16_t CfaPowerMode1Disabled : 1;
|
||||||
|
uint16_t CfaPowerMode1Required : 1;
|
||||||
|
uint16_t Reserved0 : 1;
|
||||||
|
uint16_t Word160Supported : 1;
|
||||||
|
} CfaPowerMode1;
|
||||||
|
uint16_t ReservedForCfaWord161[7];
|
||||||
|
uint16_t NominalFormFactor : 4;
|
||||||
|
uint16_t ReservedWord168 : 12;
|
||||||
|
struct {
|
||||||
|
uint16_t SupportsTrim : 1;
|
||||||
|
uint16_t Reserved0 : 15;
|
||||||
|
} DataSetManagementFeature;
|
||||||
|
uint16_t AdditionalProductID[4];
|
||||||
|
uint16_t ReservedForCfaWord174[2];
|
||||||
|
uint16_t CurrentMediaSerialNumber[30];
|
||||||
|
struct {
|
||||||
|
uint16_t Supported : 1;
|
||||||
|
uint16_t Reserved0 : 1;
|
||||||
|
uint16_t WriteSameSuported : 1;
|
||||||
|
uint16_t ErrorRecoveryControlSupported : 1;
|
||||||
|
uint16_t FeatureControlSuported : 1;
|
||||||
|
uint16_t DataTablesSuported : 1;
|
||||||
|
uint16_t Reserved1 : 6;
|
||||||
|
uint16_t VendorSpecific : 4;
|
||||||
|
} SCTCommandTransport;
|
||||||
|
uint16_t ReservedWord207[2];
|
||||||
|
struct {
|
||||||
|
uint16_t AlignmentOfLogicalWithinPhysical : 14;
|
||||||
|
uint16_t Word209Supported : 1;
|
||||||
|
uint16_t Reserved0 : 1;
|
||||||
|
} BlockAlignment;
|
||||||
|
uint16_t WriteReadVerifySectorCountMode3Only[2];
|
||||||
|
uint16_t WriteReadVerifySectorCountMode2Only[2];
|
||||||
|
struct {
|
||||||
|
uint16_t NVCachePowerModeEnabled : 1;
|
||||||
|
uint16_t Reserved0 : 3;
|
||||||
|
uint16_t NVCacheFeatureSetEnabled : 1;
|
||||||
|
uint16_t Reserved1 : 3;
|
||||||
|
uint16_t NVCachePowerModeVersion : 4;
|
||||||
|
uint16_t NVCacheFeatureSetVersion : 4;
|
||||||
|
} NVCacheCapabilities;
|
||||||
|
uint16_t NVCacheSizeLSW;
|
||||||
|
uint16_t NVCacheSizeMSW;
|
||||||
|
uint16_t NominalMediaRotationRate;
|
||||||
|
uint16_t ReservedWord218;
|
||||||
|
struct {
|
||||||
|
uint8_t NVCacheEstimatedTimeToSpinUpInSeconds;
|
||||||
|
uint8_t Reserved;
|
||||||
|
} NVCacheOptions;
|
||||||
|
uint16_t WriteReadVerifySectorCountMode : 8;
|
||||||
|
uint16_t ReservedWord220 : 8;
|
||||||
|
uint16_t ReservedWord221;
|
||||||
|
struct {
|
||||||
|
uint16_t MajorVersion : 12;
|
||||||
|
uint16_t TransportType : 4;
|
||||||
|
} TransportMajorVersion;
|
||||||
|
uint16_t TransportMinorVersion;
|
||||||
|
uint16_t ReservedWord224[6];
|
||||||
|
uint32_t ExtendedNumberOfUserAddressableSectors[2];
|
||||||
|
uint16_t MinBlocksPerDownloadMicrocodeMode03;
|
||||||
|
uint16_t MaxBlocksPerDownloadMicrocodeMode03;
|
||||||
|
uint16_t ReservedWord236[19];
|
||||||
|
uint16_t Signature : 8;
|
||||||
|
uint16_t CheckSum : 8;
|
||||||
|
} __attribute__((packed));
|
||||||
|
|
||||||
int ATADectectType(struct ata_drive *drive)
|
static struct ata_controller controllers[MAX_ATA_CONTROLLER] = {{
|
||||||
|
.id = 0,
|
||||||
|
.base = 0x1F0,
|
||||||
|
.dev_ctl = 0x3F6,
|
||||||
|
.present = 0,
|
||||||
|
},
|
||||||
{
|
{
|
||||||
outb(drive->base + ATA_PIO_DRIVE, 0xA0 | drive->isSlave << 4);
|
.id = 1,
|
||||||
outb(drive->base + ATA_PIO_SEC_COUNT, 0x0);
|
.base = 0x170,
|
||||||
outb(drive->base + ATA_PIO_LBALO, 0x0);
|
.dev_ctl = 0x376,
|
||||||
outb(drive->base + ATA_PIO_LBAMID, 0x0);
|
.present = 0,
|
||||||
outb(drive->base + ATA_PIO_LBAHI, 0x0);
|
}};
|
||||||
outb(drive->base + ATA_PIO_CMD, ATA_PIO_CMD_IDENTIFY);
|
int ATADetectDevice(struct ata_device *dev)
|
||||||
unsigned st = inb(drive->base + ATA_PIO_STATUS);
|
{
|
||||||
|
struct ata_controller *ctl = dev->ctl;
|
||||||
|
outb(ctl->base + ATA_PIO_DRIVE, 0xA0 | dev->isSlave << 4);
|
||||||
|
unsigned st = inb(ctl->base + ATA_PIO_STATUS);
|
||||||
if (st & ATA_PIO_STATUS_DRIVE_BUSY)
|
if (st & ATA_PIO_STATUS_DRIVE_BUSY)
|
||||||
goto no_disk;
|
goto no_disk;
|
||||||
|
|
||||||
inb(drive->dev_ctl); /* Drop the next 4 read to wait */
|
unsigned cl = inb(ctl->base + ATA_PIO_LBAMID); /* get the "signature bytes" */
|
||||||
inb(drive->dev_ctl);
|
unsigned ch = inb(ctl->base + ATA_PIO_LBAHI);
|
||||||
inb(drive->dev_ctl);
|
|
||||||
inb(drive->dev_ctl);
|
|
||||||
unsigned cl = inb(drive->base + ATA_PIO_LBAMID); /* get the "signature bytes" */
|
|
||||||
unsigned ch = inb(drive->base + ATA_PIO_LBAHI);
|
|
||||||
|
|
||||||
/* differentiate ATA, ATAPI, SATA and SATAPI */
|
/* differentiate ATA, ATAPI, SATA and SATAPI */
|
||||||
if (cl == 0x14 && ch == 0xEB) {
|
if (cl == 0x14 && ch == 0xEB) {
|
||||||
drive->status = ATA_DEV_PATAPI;
|
return ATA_DEV_PATAPI;
|
||||||
return 0;
|
|
||||||
}
|
}
|
||||||
if (cl == 0x69 && ch == 0x96) {
|
if (cl == 0x69 && ch == 0x96) {
|
||||||
drive->status = ATA_DEV_SATAPI;
|
return ATA_DEV_SATAPI;
|
||||||
return 0;
|
|
||||||
}
|
}
|
||||||
if (cl == 0 && ch == 0) {
|
if (cl == 0 && ch == 0) {
|
||||||
drive->status = ATA_DEV_PATA;
|
return ATA_DEV_PATA;
|
||||||
return 0;
|
|
||||||
}
|
}
|
||||||
if (cl == 0x3c && ch == 0xc3) {
|
if (cl == 0x3c && ch == 0xc3) {
|
||||||
drive->status = ATA_DEV_SATA;
|
return ATA_DEV_SATA;
|
||||||
return 0;
|
|
||||||
}
|
}
|
||||||
no_disk:
|
no_disk:
|
||||||
drive->status = ATA_DEV_UNKNOWN;
|
return ATA_DEV_UNKNOWN;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ATAGetDeviceInfo(struct ata_device *dev)
|
||||||
|
{
|
||||||
|
int status;
|
||||||
|
int16_t buffer[256];
|
||||||
|
struct ata_controller *ctl = dev->ctl;
|
||||||
|
struct _IDENTIFY_DEVICE_DATA *deviceInfo;
|
||||||
|
|
||||||
|
outb(ctl->base + ATA_PIO_DRIVE, 0xA0 | dev->isSlave << 4);
|
||||||
|
outb(ctl->base + ATA_PIO_CMD, ATA_PIO_CMD_IDENTIFY);
|
||||||
|
|
||||||
|
/* Wait for command completion (wait while busy bit is set) */
|
||||||
|
for (int timeout = 0; timeout < 30000; timeout++) {
|
||||||
|
status = inb(ctl->base + ATA_PIO_STATUS);
|
||||||
|
if (!(status & ATA_PIO_STATUS_DRIVE_BUSY))
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* DRQ bit indicates that data is ready to be read. If it is not set
|
||||||
|
after an IDENTIFY command, there is a problem */
|
||||||
|
if (!(status & ATA_PIO_STATUS_DRQ)) {
|
||||||
return -1;
|
return -1;
|
||||||
}
|
}
|
||||||
|
/* Read data from the controller buffer to a temporary buffer */
|
||||||
|
for (int i = 0; i < 256; i++)
|
||||||
|
buffer[i] = inw(ctl->base + ATA_PIO_DATA);
|
||||||
|
|
||||||
|
deviceInfo = (struct _IDENTIFY_DEVICE_DATA *)buffer;
|
||||||
|
|
||||||
|
dev->heads = deviceInfo->NumHeads;
|
||||||
|
dev->cyls = deviceInfo->NumCylinders;
|
||||||
|
dev->sectors = deviceInfo->NumSectorsPerTrack;
|
||||||
|
printf("Disk Detected[%d][%d]: %d Ko\n", ctl->id, dev->id,
|
||||||
|
(dev->heads * dev->cyls * dev->sectors * DISK_SECTOR_SIZE) / 1024);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ATADetectController(struct ata_controller *controller)
|
||||||
|
{
|
||||||
|
controller->devices[0].id = 0;
|
||||||
|
controller->devices[0].isSlave = 0;
|
||||||
|
controller->devices[0].ctl = controller;
|
||||||
|
controller->devices[0].type = ATADetectDevice(&controllers->devices[0]);
|
||||||
|
|
||||||
|
if (controller->devices[0].type == ATA_DEV_PATA ||
|
||||||
|
controller->devices[0].type == ATA_DEV_SATA) {
|
||||||
|
ATAGetDeviceInfo(&controller->devices[0]);
|
||||||
|
}
|
||||||
|
|
||||||
|
controller->devices[1].id = 1;
|
||||||
|
controller->devices[1].isSlave = 1;
|
||||||
|
controller->devices[1].ctl = controller;
|
||||||
|
controller->devices[1].type = ATADetectDevice(&controllers->devices[1]);
|
||||||
|
|
||||||
|
if (controller->devices[1].type == ATA_DEV_PATA ||
|
||||||
|
controller->devices[1].type == ATA_DEV_SATA) {
|
||||||
|
ATAGetDeviceInfo(&controller->devices[1]);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
int ATAInit()
|
int ATAInit()
|
||||||
{
|
{
|
||||||
memset(drives, 0, sizeof(drives));
|
for (uint i = 0; i < MAX_ATA_CONTROLLER; i++) {
|
||||||
drives[0].base = 0x1F0;
|
ATADetectController(&controllers[i]);
|
||||||
drives[0].dev_ctl = 0x3F6;
|
|
||||||
drives[0].isSlave = 0;
|
|
||||||
drives[1].base = 0x1F0;
|
|
||||||
drives[1].dev_ctl = 0x3F6;
|
|
||||||
drives[1].isSlave = 1;
|
|
||||||
drives[1].base = 0x170;
|
|
||||||
drives[1].dev_ctl = 0x376;
|
|
||||||
drives[1].isSlave = 0;
|
|
||||||
drives[2].base = 0x170;
|
|
||||||
drives[2].dev_ctl = 0x376;
|
|
||||||
drives[2].isSlave = 1;
|
|
||||||
|
|
||||||
for(uint i = 0; i < ARRAY_SIZE(drives); i++){
|
|
||||||
if(!ATADectectType(&drives[i])){
|
|
||||||
printf("Driver %d detected %d\n", i, drives[i].status);
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,9 +1,9 @@
|
|||||||
#pragma once
|
#pragma once
|
||||||
#include "stdarg.h"
|
#include "stdarg.h"
|
||||||
|
|
||||||
#define ATA_PIO_REG_DATA 0
|
#define ATA_PIO_DATA 0
|
||||||
#define ATA_PIO_REG_ERR 1
|
#define ATA_PIO_ERR 1
|
||||||
#define ATA_PIO_REG_FEAT 1
|
#define ATA_PIO_FEAT 1
|
||||||
#define ATA_PIO_SEC_COUNT 2
|
#define ATA_PIO_SEC_COUNT 2
|
||||||
#define ATA_PIO_LBALO 3
|
#define ATA_PIO_LBALO 3
|
||||||
#define ATA_PIO_LBAMID 4
|
#define ATA_PIO_LBAMID 4
|
||||||
@ -14,6 +14,8 @@
|
|||||||
#define ATA_PIO_STATUS 7
|
#define ATA_PIO_STATUS 7
|
||||||
#define ATA_PIO_CMD 7
|
#define ATA_PIO_CMD 7
|
||||||
|
|
||||||
|
// cmd details
|
||||||
|
// https://people.freebsd.org/~imp/asiabsdcon2015/works/d2161r5-ATAATAPI_Command_Set_-_3.pdf
|
||||||
#define ATA_PIO_CMD_IDENTIFY 0xEC
|
#define ATA_PIO_CMD_IDENTIFY 0xEC
|
||||||
|
|
||||||
#define ATA_PIO_ERROR_ADDR_MARK_NOT_FOUND 0
|
#define ATA_PIO_ERROR_ADDR_MARK_NOT_FOUND 0
|
||||||
@ -34,19 +36,35 @@
|
|||||||
#define ATA_PIO_STATUS_DRIVE_RDY (1 << 6)
|
#define ATA_PIO_STATUS_DRIVE_RDY (1 << 6)
|
||||||
#define ATA_PIO_STATUS_DRIVE_BUSY (1 << 7)
|
#define ATA_PIO_STATUS_DRIVE_BUSY (1 << 7)
|
||||||
|
|
||||||
#define ATA_DEV_PATA 1
|
#define MAX_ATA_CONTROLLER 2
|
||||||
#define ATA_DEV_SATA 2
|
#define MAX_ATA_DEVICES 2
|
||||||
#define ATA_DEV_PATAPI 3
|
|
||||||
#define ATA_DEV_SATAPI 4
|
|
||||||
#define ATA_DEV_UNKNOWN 0
|
|
||||||
|
|
||||||
struct ata_drive {
|
#define DISK_SECTOR_SIZE 512
|
||||||
int16_t base;
|
|
||||||
int16_t dev_ctl;
|
typedef enum {
|
||||||
int status;
|
ATA_DEV_UNKNOWN,
|
||||||
|
ATA_DEV_PATA,
|
||||||
|
ATA_DEV_SATA,
|
||||||
|
ATA_DEV_PATAPI,
|
||||||
|
ATA_DEV_SATAPI
|
||||||
|
} ata_type;
|
||||||
|
|
||||||
|
struct ata_device {
|
||||||
|
int id;
|
||||||
|
ata_type type;
|
||||||
int isSlave;
|
int isSlave;
|
||||||
|
struct ata_controller *ctl;
|
||||||
|
int heads;
|
||||||
|
int cyls;
|
||||||
|
int sectors;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
struct ata_controller {
|
||||||
|
int id;
|
||||||
|
int16_t base;
|
||||||
|
int16_t dev_ctl;
|
||||||
|
int present;
|
||||||
|
struct ata_device devices[MAX_ATA_DEVICES];
|
||||||
|
};
|
||||||
|
|
||||||
int ATADectectType(struct ata_drive* drive);
|
|
||||||
int ATAInit();
|
int ATAInit();
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user