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changes after code review

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svn path=/branches/GSoC_2016/AHCI/; revision=71605
This commit is contained in:
Aman Priyadarshi 2016-06-09 23:47:19 +00:00
parent d8c1347c02
commit dc4ae1e279
4 changed files with 261 additions and 185 deletions
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3
drivers/storage/storahci/makefile
View file

@ -1,3 +1,2 @@
MINIMUM_NT_TARGET_VERSION=0x502
!INCLUDE $(NTMAKEENV)\makefile.def
!INCLUDE $(NTMAKEENV)\makefile.def

352
drivers/storage/storahci/storahci.c
View file

@ -18,38 +18,59 @@
* @return
* Return true if intialization was successful
*/
BOOLEAN AhciPortInitialize(
__in PAHCI_PORT_EXTENSION portExtension
)
BOOLEAN
AhciPortInitialize (
__in PAHCI_PORT_EXTENSION portExtension
)
{
ULONG mappedLength;
PAHCI_MEMORY_REGISTERS abar;
PAHCI_ADAPTER_EXTENSION adapterExtension;
STOR_PHYSICAL_ADDRESS commandListPhysical, receivedFISPhysical;
StorPortDebugPrint(0, "AhciPortInitialize()\n");
DebugPrint("AhciPortInitialize()\n");
NT_ASSERT(portExtension != NULL);
adapterExtension = portExtension->AdapterExtension;
abar = adapterExtension->ABAR_Address;
NT_ASSERT(abar != NULL);
portExtension->Port = &abar->PortList[portExtension->PortNumber];
commandListPhysical = StorPortGetPhysicalAddress(adapterExtension, NULL, portExtension->CommandList, &mappedLength);
if (mappedLength == 0 || (commandListPhysical.LowPart % 1024) != 0){
StorPortDebugPrint(0, "\tcommandListPhysical mappedLength:%d\n", mappedLength);
commandListPhysical = StorPortGetPhysicalAddress( adapterExtension,
NULL,
portExtension->CommandList,
&mappedLength);
if ((mappedLength) == 0 || ((commandListPhysical.LowPart % 1024) != 0))
{
DebugPrint("\tcommandListPhysical mappedLength:%d\n", mappedLength);
return FALSE;
}
receivedFISPhysical = StorPortGetPhysicalAddress(adapterExtension, NULL, portExtension->ReceivedFIS, &mappedLength);
if (mappedLength == 0 || (receivedFISPhysical.LowPart % 256) != 0){
StorPortDebugPrint(0, "\treceivedFISPhysical mappedLength:%d\n", mappedLength);
receivedFISPhysical = StorPortGetPhysicalAddress( adapterExtension,
NULL,
portExtension->ReceivedFIS,
&mappedLength);
if ((mappedLength) == 0 || ((receivedFISPhysical.LowPart % 1024) != 0))
{
DebugPrint("\treceivedFISPhysical mappedLength:%d\n", mappedLength);
return FALSE;
}
if ((adapterExtension->CAP & AHCI_Global_HBA_CAP_S64A) != 0)
{
DebugPrint("\tCAP.S64A not supported\n");
return FALSE;
}
// 10.1.2 For each implemented port, system software shall allocate memory for and program:
//  PxCLB and PxCLBU (if CAP.S64A is set to ‘1’)
//  PxFB and PxFBU (if CAP.S64A is set to ‘1’)
//Note: Assuming 32bit support only
// Note: Assuming 32bit support only
StorPortWriteRegisterUlong(adapterExtension, &portExtension->Port->CLB, commandListPhysical.LowPart);
StorPortWriteRegisterUlong(adapterExtension, &portExtension->Port->FB, receivedFISPhysical.LowPart);
@ -76,60 +97,64 @@ BOOLEAN AhciPortInitialize(
* @return
* return TRUE if allocation was successful
*/
BOOLEAN AhciAllocateResourceForAdapter(
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in PPORT_CONFIGURATION_INFORMATION ConfigInfo
)
BOOLEAN
AhciAllocateResourceForAdapter (
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in PPORT_CONFIGURATION_INFORMATION ConfigInfo
)
{
PVOID portsExtension = NULL;
PCHAR nonCachedExtension;
ULONG portCount, portImplemented, status, index, NCS, AlignedNCS, nonCachedExtensionSize, currentCount;
ULONG status, index, NCS, AlignedNCS;
ULONG portCount, portImplemented, nonCachedExtensionSize;
StorPortDebugPrint(0, "AhciAllocateResourceForAdapter()\n");
DebugPrint("AhciAllocateResourceForAdapter()\n");
// 3.1.1 NCS = CAP[12:08] -> Align
NCS = (adapterExtension->CAP & 0xF00) >> 8;
AlignedNCS = ((NCS/8) + 1) * 8;
NCS = AHCI_Global_Port_CAP_NCS(adapterExtension->CAP);
AlignedNCS = ROUND_UP(NCS, 8);
// get port count -- Number of set bits in `adapterExtension->PortImplemented`
portCount = 0;
portImplemented = adapterExtension->PortImplemented;
while(portImplemented > 0)
while (portImplemented > 0)
{
portCount++;
portImplemented &= (portImplemented-1);
portImplemented &= (portImplemented - 1);
}
StorPortDebugPrint(0, "\tPort Count: %d\n", portCount);
NT_ASSERT(portCount != 0);
DebugPrint("\tPort Count: %d\n", portCount);
nonCachedExtensionSize = sizeof(AHCI_COMMAND_HEADER) * AlignedNCS + //should be 1K aligned
sizeof(AHCI_RECEIVED_FIS);
//align nonCachedExtensionSize to 1K
nonCachedExtensionSize = (((nonCachedExtensionSize - 1) / 0x400) + 1) * 0x400;
nonCachedExtensionSize *= portCount;
adapterExtension->NonCachedExtension = StorPortGetUncachedExtension(adapterExtension, ConfigInfo, nonCachedExtensionSize);
if (adapterExtension->NonCachedExtension == NULL) {
StorPortDebugPrint(0, "\tadapterExtension->NonCachedExtension == NULL\n");
// align nonCachedExtensionSize to 1024
nonCachedExtensionSize = ROUND_UP(nonCachedExtensionSize, 1024);
adapterExtension->NonCachedExtension = StorPortGetUncachedExtension( adapterExtension,
ConfigInfo,
nonCachedExtensionSize * portCount);
if (adapterExtension->NonCachedExtension == NULL)
{
DebugPrint("\tadapterExtension->NonCachedExtension == NULL\n");
return FALSE;
}
nonCachedExtension = (PCHAR)adapterExtension->NonCachedExtension;
nonCachedExtension = adapterExtension->NonCachedExtension;
AhciZeroMemory(nonCachedExtension, nonCachedExtensionSize * portCount);
AhciZeroMemory(nonCachedExtension, nonCachedExtensionSize);
nonCachedExtensionSize /= portCount;
currentCount = 0;
for (index = 0; index < MAXIMUM_AHCI_PORT_COUNT; index++)
{
adapterExtension->PortExtension[index].IsActive = FALSE;
if ((adapterExtension->PortImplemented & (1<<index)) != 0)
if ((adapterExtension->PortImplemented & (1 << index)) != 0)
{
adapterExtension->PortExtension[index].PortNumber = index;
adapterExtension->PortExtension[index].IsActive = TRUE;
adapterExtension->PortExtension[index].AdapterExtension = adapterExtension;
adapterExtension->PortExtension[index].CommandList = (PAHCI_COMMAND_HEADER)(nonCachedExtension + (currentCount*nonCachedExtensionSize));
adapterExtension->PortExtension[index].ReceivedFIS = (PAHCI_RECEIVED_FIS)((PCHAR)adapterExtension->PortExtension[index].CommandList + sizeof(AHCI_COMMAND_HEADER) * AlignedNCS);
currentCount++;
adapterExtension->PortExtension[index].CommandList = nonCachedExtension;
adapterExtension->PortExtension[index].ReceivedFIS = (PAHCI_RECEIVED_FIS)(nonCachedExtension + sizeof(AHCI_COMMAND_HEADER) * AlignedNCS);
nonCachedExtension += nonCachedExtensionSize;
}
}
@ -147,29 +172,30 @@ BOOLEAN AhciAllocateResourceForAdapter(
* @return
* return TRUE if intialization was successful
*/
BOOLEAN AhciHwInitialize(
__in PVOID AdapterExtension
)
BOOLEAN
AhciHwInitialize (
__in PVOID AdapterExtension
)
{
ULONG ghc, messageCount, status;
PAHCI_ADAPTER_EXTENSION adapterExtension;
StorPortDebugPrint(0, "AhciHwInitialize()\n");
DebugPrint("AhciHwInitialize()\n");
adapterExtension = (PAHCI_ADAPTER_EXTENSION)AdapterExtension;
adapterExtension = AdapterExtension;
adapterExtension->StateFlags.MessagePerPort = FALSE;
// First check what type of interrupt/synchronization device is using
ghc = StorPortReadRegisterUlong(adapterExtension, &adapterExtension->ABAR_Address->GHC);
//When set to ‘1’ by hardware, indicates that the HBA requested more than one MSI vector
//but has reverted to using the first vector only. When this bit is cleared to ‘0’,
//the HBA has not reverted to single MSI mode (i.e. hardware is already in single MSI mode,
//software has allocated the number of messages requested
// When set to ‘1’ by hardware, indicates that the HBA requested more than one MSI vector
// but has reverted to using the first vector only. When this bit is cleared to ‘0’,
// the HBA has not reverted to single MSI mode (i.e. hardware is already in single MSI mode,
// software has allocated the number of messages requested
if ((ghc & AHCI_Global_HBA_CONTROL_MRSM) == 0)
{
adapterExtension->StateFlags.MessagePerPort = TRUE;
StorPortDebugPrint(0, "\tMultiple MSI based message not supported\n");
DebugPrint("\tMultiple MSI based message not supported\n");
}
return TRUE;
@ -184,12 +210,13 @@ BOOLEAN AhciHwInitialize(
* @param portExtension
*
*/
VOID AhciInterruptHandler(
__in PAHCI_PORT_EXTENSION portExtension
)
VOID
AhciInterruptHandler (
__in PAHCI_PORT_EXTENSION portExtension
)
{
StorPortDebugPrint(0, "AhciInterruptHandler()\n");
StorPortDebugPrint(0, "\tPort Number: %d\n", portExtension->PortNumber);
DebugPrint("AhciInterruptHandler()\n");
DebugPrint("\tPort Number: %d\n", portExtension->PortNumber);
}// -- AhciInterruptHandler();
@ -205,26 +232,31 @@ VOID AhciInterruptHandler(
* return TRUE Indicates that an interrupt was pending on adapter.
* return FALSE Indicates the interrupt was not ours.
*/
BOOLEAN AhciHwInterrupt(
__in PVOID AdapterExtension
)
BOOLEAN
AhciHwInterrupt(
__in PVOID AdapterExtension
)
{
ULONG portPending, nextPort, i;
PAHCI_ADAPTER_EXTENSION adapterExtension;
StorPortDebugPrint(0, "AhciHwInterrupt()\n");
DebugPrint("AhciHwInterrupt()\n");
adapterExtension = (PAHCI_ADAPTER_EXTENSION)AdapterExtension;
adapterExtension = AdapterExtension;
if (adapterExtension->StateFlags.Removed)
{
return FALSE;
}
portPending = StorPortReadRegisterUlong(adapterExtension, adapterExtension->IS);
// we process interrupt for implemented ports only
portPending = portPending & adapterExtension->PortImplemented;
if (portPending == 0)
{
return FALSE;
}
for (i = 1; i <= MAXIMUM_AHCI_PORT_COUNT; i++)
{
@ -233,16 +265,19 @@ BOOLEAN AhciHwInterrupt(
if ((portPending & (0x1 << nextPort)) == 0)
continue;
if (nextPort == adapterExtension->LastInterruptPort
|| adapterExtension->PortExtension[nextPort].IsActive == FALSE)
if ((nextPort == adapterExtension->LastInterruptPort)
|| (adapterExtension->PortExtension[nextPort].IsActive == FALSE))
{
return FALSE;
}
// we can assign this interrupt to this port
adapterExtension->LastInterruptPort = nextPort;
AhciInterruptHandler(nextPort);
AhciInterruptHandler(&adapterExtension->PortExtension[nextPort]);
return TRUE;
}
DebugPrint("\tSomething wrong");
return FALSE;
}// -- AhciHwInterrupt();
@ -259,20 +294,20 @@ BOOLEAN AhciHwInterrupt(
* return TRUE if the request was accepted
* return FALSE if the request must be submitted later
*/
BOOLEAN AhciHwStartIo(
__in PVOID AdapterExtension,
__in PSCSI_REQUEST_BLOCK Srb
)
BOOLEAN
AhciHwStartIo (
__in PVOID AdapterExtension,
__in PSCSI_REQUEST_BLOCK Srb
)
{
UCHAR function, pathId;
PAHCI_ADAPTER_EXTENSION adapterExtension;
StorPortDebugPrint(0, "AhciHwStartIo()\n");
DebugPrint("AhciHwStartIo()\n");
pathId = Srb->PathId;
function = Srb->Function;
adapterExtension = (PAHCI_ADAPTER_EXTENSION)AdapterExtension;
adapterExtension = AdapterExtension;
if (!IsPortValid(adapterExtension, pathId))
{
@ -291,20 +326,23 @@ BOOLEAN AhciHwStartIo(
pnpRequest = (PSCSI_PNP_REQUEST_BLOCK)Srb;
if ((pnpRequest->SrbPnPFlags & SRB_PNP_FLAGS_ADAPTER_REQUEST) != 0)
{
if (pnpRequest->PnPAction == StorRemoveDevice ||
pnpRequest->PnPAction == StorSurpriseRemoval)
if ((pnpRequest->PnPAction == StorRemoveDevice) ||
(pnpRequest->PnPAction == StorSurpriseRemoval))
{
Srb->SrbStatus = SRB_STATUS_SUCCESS;
adapterExtension->StateFlags.Removed = 1;
StorPortDebugPrint(0, "\tadapter removed\n");
DebugPrint("\tadapter removed\n");
}
else if (pnpRequest->PnPAction == StorStopDevice)
{
Srb->SrbStatus = SRB_STATUS_SUCCESS;
StorPortDebugPrint(0, "\tRequested to Stop the adapter\n");
DebugPrint("\tRequested to Stop the adapter\n");
}
else
{
Srb->SrbStatus = SRB_STATUS_INVALID_REQUEST;
}
StorPortNotification(RequestComplete, adapterExtension, Srb);
return TRUE;
}
@ -346,7 +384,7 @@ BOOLEAN AhciHwStartIo(
}
}
StorPortDebugPrint(0, "\tUnknow function code recieved: %x\n", function);
DebugPrint("\tUnknow function code recieved: %x\n", function);
Srb->SrbStatus = SRB_STATUS_BAD_FUNCTION;
StorPortNotification(RequestComplete, adapterExtension, Srb);
return TRUE;
@ -354,7 +392,7 @@ BOOLEAN AhciHwStartIo(
/**
* @name AhciHwResetBus
* @implemented
* @not_implemented
*
* The HwStorResetBus routine is called by the port driver to clear error conditions.
*
@ -364,17 +402,17 @@ BOOLEAN AhciHwStartIo(
* @return
* return TRUE if bus was successfully reset
*/
BOOLEAN AhciHwResetBus(
__in PVOID AdapterExtension,
__in ULONG PathId
)
BOOLEAN
AhciHwResetBus (
__in PVOID AdapterExtension,
__in ULONG PathId
)
{
PAHCI_ADAPTER_EXTENSION adapterExtension;
StorPortDebugPrint(0, "AhciHwResetBus()\n");
DebugPrint("AhciHwResetBus()\n");
adapterExtension = (PAHCI_ADAPTER_EXTENSION)AdapterExtension;
adapterExtension = AdapterExtension;
return FALSE;
}// -- AhciHwResetBus();
@ -411,28 +449,30 @@ BOOLEAN AhciHwResetBus(
*
* @remarks Called by Storport.
*/
ULONG AhciHwFindAdapter(
__in PVOID AdapterExtension,
__in PVOID HwContext,
__in PVOID BusInformation,
__in PVOID ArgumentString,
__inout PPORT_CONFIGURATION_INFORMATION ConfigInfo,
__in PBOOLEAN Reserved3
)
ULONG
AhciHwFindAdapter (
__in PVOID AdapterExtension,
__in PVOID HwContext,
__in PVOID BusInformation,
__in PVOID ArgumentString,
__inout PPORT_CONFIGURATION_INFORMATION ConfigInfo,
__in PBOOLEAN Reserved3
)
{
ULONG ghc;
ULONG index;
ULONG portCount, portImplemented;
ULONG pci_cfg_len;
UCHAR pci_cfg_buf[0x30];
UCHAR pci_cfg_buf[sizeof(PCI_COMMON_CONFIG)];
PACCESS_RANGE accessRange;
PAHCI_MEMORY_REGISTERS abar;
PPCI_COMMON_CONFIG pciConfigData;
PAHCI_ADAPTER_EXTENSION adapterExtension;
StorPortDebugPrint(0, "AhciHwFindAdapter()\n");
DebugPrint("AhciHwFindAdapter()\n");
adapterExtension = (PAHCI_ADAPTER_EXTENSION)AdapterExtension;
adapterExtension = AdapterExtension;
adapterExtension->SlotNumber = ConfigInfo->SlotNumber;
adapterExtension->SystemIoBusNumber = ConfigInfo->SystemIoBusNumber;
@ -442,22 +482,23 @@ ULONG AhciHwFindAdapter(
PCIConfiguration,
adapterExtension->SystemIoBusNumber,
adapterExtension->SlotNumber,
(PVOID)pci_cfg_buf,
(ULONG)0x30);
pci_cfg_buf,
sizeof(PCI_COMMON_CONFIG));
if (pci_cfg_len != 0x30){
StorPortDebugPrint(0, "\tpci_cfg_len != 0x30 :: %d", pci_cfg_len);
if (pci_cfg_len != sizeof(PCI_COMMON_CONFIG))
{
DebugPrint("\tpci_cfg_len != %d :: %d", sizeof(PCI_COMMON_CONFIG), pci_cfg_len);
return SP_RETURN_ERROR;//Not a valid device at the given bus number
}
pciConfigData = (PPCI_COMMON_CONFIG)pci_cfg_buf;
pciConfigData = pci_cfg_buf;
adapterExtension->VendorID = pciConfigData->VendorID;
adapterExtension->DeviceID = pciConfigData->DeviceID;
adapterExtension->RevisionID = pciConfigData->RevisionID;
// The last PCI base address register (BAR[5], header offset 0x24) points to the AHCI base memory, it’s called ABAR (AHCI Base Memory Register).
adapterExtension->AhciBaseAddress = pciConfigData->u.type0.BaseAddresses[5] & (0xFFFFFFF0);
StorPortDebugPrint(0, "\tVendorID:%d DeviceID:%d RevisionID:%d\n", adapterExtension->VendorID, adapterExtension->DeviceID, adapterExtension->RevisionID);
DebugPrint("\tVendorID:%d DeviceID:%d RevisionID:%d\n", adapterExtension->VendorID, adapterExtension->DeviceID, adapterExtension->RevisionID);
// 2.1.11
abar = NULL;
@ -465,22 +506,24 @@ ULONG AhciHwFindAdapter(
{
for (index = 0; index < ConfigInfo->NumberOfAccessRanges; index++)
{
if ((*(ConfigInfo->AccessRanges))[index].RangeStart.QuadPart == adapterExtension->AhciBaseAddress)
accessRange = *ConfigInfo->AccessRanges;
if (accessRange[index].RangeStart.QuadPart == adapterExtension->AhciBaseAddress)
{
abar = (PAHCI_MEMORY_REGISTERS)StorPortGetDeviceBase(
abar = StorPortGetDeviceBase(
adapterExtension,
ConfigInfo->AdapterInterfaceType,
ConfigInfo->SystemIoBusNumber,
(*(ConfigInfo->AccessRanges))[index].RangeStart,
(*(ConfigInfo->AccessRanges))[index].RangeLength,
(BOOLEAN)!(*(ConfigInfo->AccessRanges))[index].RangeInMemory);
accessRange[index].RangeStart,
accessRange[index].RangeLength,
!accessRange[index].RangeInMemory);
break;
}
}
}
if (abar == NULL){
StorPortDebugPrint(0, "\tabar == NULL\n");
if (abar == NULL)
{
DebugPrint("\tabar == NULL\n");
return SP_RETURN_ERROR; // corrupted information supplied
}
@ -498,9 +541,9 @@ ULONG AhciHwFindAdapter(
if ((ghc & AHCI_Global_HBA_CONTROL_AE) != 0)//Hmm, controller was already in power state
{
// reset controller to have it in known state
StorPortDebugPrint(0, "\tAE Already set, Reset()\n");
DebugPrint("\tAE Already set, Reset()\n");
if (!AhciAdapterReset(adapterExtension)){
StorPortDebugPrint(0, "\tReset Failed!\n");
DebugPrint("\tReset Failed!\n");
return SP_RETURN_ERROR;// reset failed
}
}
@ -511,12 +554,13 @@ ULONG AhciHwFindAdapter(
adapterExtension->IS = &abar->IS;
adapterExtension->PortImplemented = StorPortReadRegisterUlong(adapterExtension, &abar->PI);
if (adapterExtension->PortImplemented == 0){
StorPortDebugPrint(0, "\tadapterExtension->PortImplemented == 0\n");
if (adapterExtension->PortImplemented == 0)
{
DebugPrint("\tadapterExtension->PortImplemented == 0\n");
return SP_RETURN_ERROR;
}
ConfigInfo->MaximumTransferLength = 128 * 1024;//128 KB
ConfigInfo->MaximumTransferLength = MAXIMUM_TRANSFER_LENGTH;//128 KB
ConfigInfo->NumberOfPhysicalBreaks = 0x21;
ConfigInfo->MaximumNumberOfTargets = 1;
ConfigInfo->MaximumNumberOfLogicalUnits = 1;
@ -530,8 +574,9 @@ ULONG AhciHwFindAdapter(
StorPortWriteRegisterUlong(adapterExtension, &abar->GHC, ghc);
// allocate necessary resource for each port
if (!AhciAllocateResourceForAdapter(adapterExtension, ConfigInfo)){
StorPortDebugPrint(0, "\tAhciAllocateResourceForAdapter() == FALSE\n");
if (!AhciAllocateResourceForAdapter(adapterExtension, ConfigInfo))
{
DebugPrint("\tAhciAllocateResourceForAdapter() == FALSE\n");
return SP_RETURN_ERROR;
}
@ -556,18 +601,19 @@ ULONG AhciHwFindAdapter(
* @return
* NT_STATUS in case of driver loaded successfully.
*/
ULONG DriverEntry(
__in PVOID DriverObject,
__in PVOID RegistryPath
)
ULONG
DriverEntry (
__in PVOID DriverObject,
__in PVOID RegistryPath
)
{
HW_INITIALIZATION_DATA hwInitializationData;
ULONG i, status;
StorPortDebugPrint(0, "Storahci Loaded\n");
DebugPrint("Storahci Loaded\n");
// initialize the hardware data structure
AhciZeroMemory((PCHAR)&hwInitializationData, sizeof(HW_INITIALIZATION_DATA));
AhciZeroMemory(&hwInitializationData, sizeof(HW_INITIALIZATION_DATA));
// set size of hardware initialization structure
hwInitializationData.HwInitializationDataSize = sizeof(HW_INITIALIZATION_DATA);
@ -600,7 +646,7 @@ ULONG DriverEntry(
&hwInitializationData,
NULL);
StorPortDebugPrint(0, "\tstatus:%x\n", status);
DebugPrint("\tstatus:%x\n", status);
return status;
}// -- DriverEntry();
@ -623,29 +669,38 @@ ULONG DriverEntry(
* @return
* TRUE in case AHCI Controller RESTARTED successfully. i.e GHC.HR == 0
*/
BOOLEAN AhciAdapterReset(
__in PAHCI_ADAPTER_EXTENSION adapterExtension
)
BOOLEAN
AhciAdapterReset (
__in PAHCI_ADAPTER_EXTENSION adapterExtension
)
{
ULONG ghc, ticks;
PAHCI_MEMORY_REGISTERS abar = NULL;
StorPortDebugPrint(0, "AhciAdapterReset()\n");
DebugPrint("AhciAdapterReset()\n");
abar = adapterExtension->ABAR_Address;
if (abar == NULL) // basic sanity
{
return FALSE;
}
// HR -- Very first bit (lowest significant)
ghc = AHCI_Global_HBA_CONTROL_HR;
StorPortWriteRegisterUlong(adapterExtension, &abar->GHC, ghc);
for (ticks = 0; (ticks < 50) &&
(StorPortReadRegisterUlong(adapterExtension, &abar->GHC) == 1);
StorPortStallExecution(20000), ticks++);
for (ticks = 0; ticks < 50; ++ticks)
{
if ((StorPortReadRegisterUlong(adapterExtension, &abar->GHC) & AHCI_Global_HBA_CONTROL_HR) == 0)
{
break;
}
StorPortStallExecution(20000);
}
if (ticks == 50) { //1 second
StorPortDebugPrint(0, "\tDevice Timeout\n");
if (ticks == 50)// 1 second
{
DebugPrint("\tDevice Timeout\n");
return FALSE;
}
@ -661,10 +716,11 @@ BOOLEAN AhciAdapterReset(
* @param buffer
*/
__inline
VOID AhciZeroMemory(
__in PCHAR buffer,
__in ULONG bufferSize
)
VOID
AhciZeroMemory (
__out PCHAR buffer,
__in ULONG bufferSize
)
{
ULONG i;
for (i = 0; i < bufferSize; i++)
@ -684,13 +740,18 @@ VOID AhciZeroMemory(
* return TRUE if provided port is valid (implemented) or not
*/
__inline
BOOLEAN IsPortValid(
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in UCHAR pathId
)
BOOLEAN
IsPortValid (
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in UCHAR pathId
)
{
NT_ASSERT(pathId >= 0);
if (pathId >= MAXIMUM_AHCI_PORT_COUNT)
{
return FALSE;
}
return adapterExtension->PortExtension[pathId].IsActive;
}// -- IsPortValid()
@ -711,26 +772,27 @@ BOOLEAN IsPortValid(
* @remark
* http://www.seagate.com/staticfiles/support/disc/manuals/Interface%20manuals/100293068c.pdf
*/
ULONG DeviceInquiryRequest(
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in PSCSI_REQUEST_BLOCK Srb,
__in PCDB Cdb
)
ULONG
DeviceInquiryRequest (
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in PSCSI_REQUEST_BLOCK Srb,
__in PCDB Cdb
)
{
PVOID DataBuffer;
ULONG DataBufferLength;
StorPortDebugPrint(0, "DeviceInquiryRequest()\n");
DebugPrint("DeviceInquiryRequest()\n");
// 3.6.1
// If the EVPD bit is set to zero, the device server shall return the standard INQUIRY data
if (Cdb->CDB6INQUIRY3.EnableVitalProductData == 0)
{
StorPortDebugPrint(0, "\tEVPD Inquired\n");
DebugPrint("\tEVPD Inquired\n");
}
else
{
StorPortDebugPrint(0, "\tVPD Inquired\n");
DebugPrint("\tVPD Inquired\n");
DataBuffer = Srb->DataBuffer;
DataBufferLength = Srb->DataTransferLength;
@ -738,7 +800,7 @@ ULONG DeviceInquiryRequest(
if (DataBuffer == NULL)
return SRB_STATUS_INVALID_REQUEST;
AhciZeroMemory((PCHAR)DataBuffer, DataBufferLength);
AhciZeroMemory(DataBuffer, DataBufferLength);
}
return SRB_STATUS_BAD_FUNCTION;

75
drivers/storage/storahci/storahci.h
View file

@ -5,17 +5,28 @@
* PROGRAMMERS: Aman Priyadarshi (aman.eureka@gmail.com)
*/
#include "miniport.h"
#include "storport.h"
#include <ntddk.h>
#include <storport.h>
#define AHCI_POOL_TAG 'ahci'
#define MAXIMUM_AHCI_PORT_COUNT 12
#define DEBUG 1
#define MAXIMUM_AHCI_PORT_COUNT 12
#define MAXIMUM_TRANSFER_LENGTH (128*1024) // 128 KB
// section 3.1.2
#define AHCI_Global_HBA_CONTROL_HR (0x1<<0)
#define AHCI_Global_HBA_CONTROL_IE (0x1<<1)
#define AHCI_Global_HBA_CONTROL_MRSM (0x1<<2)
#define AHCI_Global_HBA_CONTROL_AE (0x1<<31)
#define AHCI_Global_HBA_CONTROL_HR (1 << 0)
#define AHCI_Global_HBA_CONTROL_IE (1 << 1)
#define AHCI_Global_HBA_CONTROL_MRSM (1 << 2)
#define AHCI_Global_HBA_CONTROL_AE (1 << 31)
#define AHCI_Global_HBA_CAP_S64A (1 << 31)
// 3.1.1 NCS = CAP[12:08] -> Align
#define AHCI_Global_Port_CAP_NCS(x) (((x) & 0xF00) >> 8)
#define ROUND_UP(N, S) ((((N) + (S) - 1) / (S)) * (S))
#if DEBUG
#define DebugPrint(format, ...) StorPortDebugPrint(0, format, __VA_ARGS__)
#endif
//////////////////////////////////////////////////////////////
// ---- Support Structures --- //
@ -32,17 +43,17 @@ typedef struct _AHCI_FIS_DMA_SETUP
UCHAR Reserved[2]; // Reserved
ULONG DmaBufferLow; // DMA Buffer Identifier. Used to Identify DMA buffer in host memory. SATA Spec says host specific and not in Spec. Trying AHCI spec might work.
ULONG DmaBufferHigh;
ULONG Reserved2; //More reserved
ULONG DmaBufferOffset; //Byte offset into buffer. First 2 bits must be 0
ULONG TranferCount; //Number of bytes to transfer. Bit 0 must be 0
ULONG Reserved3; //Reserved
ULONG Reserved2; // More reserved
ULONG DmaBufferOffset; // Byte offset into buffer. First 2 bits must be 0
ULONG TranferCount; // Number of bytes to transfer. Bit 0 must be 0
ULONG Reserved3; // Reserved
} AHCI_FIS_DMA_SETUP;
typedef struct _AHCI_PIO_SETUP_FIS
{
UCHAR FisType; //0x5F
UCHAR FisType;
UCHAR Reserved1 :5;
UCHAR D :1; // 1 is write (device to host)
UCHAR D :1;
UCHAR I :1;
UCHAR Reserved2 :1;
UCHAR Status;
@ -237,24 +248,28 @@ typedef struct _AHCI_SRB_EXTENSION
// Declarations //
//////////////////////////////////////////////////////////////
BOOLEAN AhciAdapterReset(
__in PAHCI_ADAPTER_EXTENSION adapterExtension
);
BOOLEAN
AhciAdapterReset (
__in PAHCI_ADAPTER_EXTENSION adapterExtension
);
__inline
VOID AhciZeroMemory(
__in PCHAR buffer,
__in ULONG bufferSize
);
VOID
AhciZeroMemory (
__out PCHAR buffer,
__in ULONG bufferSize
);
__inline
BOOLEAN IsPortValid(
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in UCHAR pathId
);
BOOLEAN
IsPortValid (
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in UCHAR pathId
);
ULONG DeviceInquiryRequest(
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in PSCSI_REQUEST_BLOCK Srb,
__in PCDB Cdb
);
ULONG
DeviceInquiryRequest (
__in PAHCI_ADAPTER_EXTENSION adapterExtension,
__in PSCSI_REQUEST_BLOCK Srb,
__in PCDB Cdb
);

16
drivers/storage/storahci/storahci.inf
View file

@ -1,9 +1,9 @@
/*
* PROJECT: ROS Kernel
* LICENSE: GNU GPLv2 only as published by the Free Software Foundation
* PURPOSE: Storahci Driver INF
* PROGRAMMERS: Aman Priyadarshi (aman.eureka@gmail.com)
*/
;
; PROJECT: ROS Kernel
; LICENSE: GNU GPLv2 only as published by the Free Software Foundation
; PURPOSE: Storahci Driver INF
; PROGRAMMERS: Aman Priyadarshi (aman.eureka@gmail.com)
;
[version]
signature="$Windows NT$"
@ -21,7 +21,7 @@ storahci.sys = 1
DefaultDestDir = 12 ; DIRID_DRIVERS
[Manufacturer]
%STORAHCI%=STORAHCI,NTx86
%ROS%=STORAHCI,NTx86
[STORAHCI]
@ -65,7 +65,7 @@ HKR,,EventMessageFile,%REG_EXPAND_SZ%,"%%SystemRoot%%\System32\IoLogMsg.dll"
HKR,,TypesSupported,%REG_DWORD%,7
[Strings]
ROS = "React OS"
ROS = "ROS"
DeviceDesc = "AHCI SATA Driver"
SATA_AHCI.DeviceDesc = "Standard SATA AHCI Controller"