maksw/nt-lite
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replace ad hoc driver loading with a proper driver manager, new DDK, new PnP manager with device matching, asynchronous startup, resource ownership and removal, add shared PCI capability helpers, replace typed, rigid services with a proper service manager, implement proper system shutdown and restart, shutting down unloads drivers and shuts down services, add simple power button, remove heavyweight boot self-tests and SMP stress runs, add monotonic timestamps to kernel debug output, fruitless USB and PS/2 fixes, make test builds opt in.

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maksw committed 2026-10-26 10:08:03 +01:00
1 parent c0ad63c27f
commit d36f19509c
160 files changed
+6563 -7366
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code/drivers/storage/ahci/ahci.c
+20 -24
View File
@@ -1,8 +1,8 @@
#include <ntlite/ddk/module.h>
// AHCI storage driver. This file owns controller attachment, drive discovery, command submission, and worker-driven IRP completion.
#include "ahci.h"
const NTL_DDK* gAhciDdk;
DRIVER_OBJECT g_driver;
static AHCI_CONTROLLER* g_controllers[MAX_AHCI_CONTROLLERS];
@@ -102,13 +102,13 @@ static void AhciReleaseDriveRuntime(AHCI_DRIVE* drv) {
// Releases the DMA buffers owned by one AHCI drive.
static void AhciReleaseDriveDma(AHCI_DRIVE* drv) {
if (!drv || !gAhciDdk || !gAhciDdk->Dma)
if (!drv)
return;
if (drv->port && drv->controller &&
!drv->surpriseRemoved && !drv->controller->surpriseRemoved)
port_stop(drv->port);
gAhciDdk->Dma->FreeCommonBuffer(drv->bounceDma);
gAhciDdk->Dma->FreeCommonBuffer(drv->structDma);
IoDmaFreeCommonBuffer(drv->bounceDma);
IoDmaFreeCommonBuffer(drv->structDma);
drv->bounceDma = (IO_DMA_BUFFER*)0;
drv->structDma = (IO_DMA_BUFFER*)0;
drv->bounceDeviceAddress = 0;
@@ -122,16 +122,16 @@ static KSTATUS port_init_memory(AHCI_DRIVE* drv) {
if (!drv || !drv->controller || !drv->controller->dmaAdapter)
return NTLSTATUS_INVALID_PARAMETER;
KSTATUS status = gAhciDdk->Dma->AllocateCommonBuffer(drv->controller->dmaAdapter,
KSTATUS status = IoDmaAllocateCommonBuffer(drv->controller->dmaAdapter,
PORT_PAGES_STRUCT * PAGE_SIZE,
PAGE_SIZE,
&drv->structDma);
if (!KSUCCESS(status))
return status;
drv->structVirt = gAhciDdk->Dma->GetCommonBufferAddress(drv->structDma);
drv->structDeviceAddress = gAhciDdk->Dma->GetCommonBufferDeviceAddress(drv->structDma);
drv->structVirt = IoDmaGetCommonBufferAddress(drv->structDma);
drv->structDeviceAddress = IoDmaGetCommonBufferDeviceAddress(drv->structDma);
status = gAhciDdk->Dma->AllocateCommonBuffer(drv->controller->dmaAdapter,
status = IoDmaAllocateCommonBuffer(drv->controller->dmaAdapter,
BOUNCE_BYTES,
PAGE_SIZE,
&drv->bounceDma);
@@ -139,8 +139,8 @@ static KSTATUS port_init_memory(AHCI_DRIVE* drv) {
AhciReleaseDriveDma(drv);
return status;
}
drv->bounceVirt = gAhciDdk->Dma->GetCommonBufferAddress(drv->bounceDma);
drv->bounceDeviceAddress = gAhciDdk->Dma->GetCommonBufferDeviceAddress(drv->bounceDma);
drv->bounceVirt = IoDmaGetCommonBufferAddress(drv->bounceDma);
drv->bounceDeviceAddress = IoDmaGetCommonBufferDeviceAddress(drv->bounceDma);
HBA_PORT* port = drv->port;
port_stop(port);
@@ -701,7 +701,7 @@ static KSTATUS AhciDispatchControllerPnp(DEVICE_OBJECT* device, IRP* irp) {
}
}
AhciUnregisterController(ctl);
gAhciDdk->Dma->PutAdapter(ctl->dmaAdapter);
IoDmaPutAdapter(ctl->dmaAdapter);
ctl->dmaAdapter = (IO_DMA_ADAPTER*)0;
IoDetachDevice(device);
IoDeleteDevice(device);
@@ -940,7 +940,7 @@ static KSTATUS AhciStartController(AHCI_CONTROLLER* ctl) {
dmaRequirements.Alignment = 2;
dmaRequirements.MaximumSegmentLength = 1u << 22;
dmaRequirements.MaximumSegments = PORT_PRDT_COUNT;
st = gAhciDdk->Dma->GetAdapter(ctl->fdo, &dmaRequirements, &ctl->dmaAdapter);
st = IoDmaGetAdapter(ctl->fdo, &dmaRequirements, &ctl->dmaAdapter);
if (!KSUCCESS(st)) {
DbgPrint("AHCI: DMA adapter creation failed (0x%x)\n", st);
return st;
@@ -949,7 +949,7 @@ static KSTATUS AhciStartController(AHCI_CONTROLLER* ctl) {
st = AhciRegisterController(ctl);
if (!KSUCCESS(st)) {
DbgPrint("AHCI: controller registry full (0x%x)\n", st);
gAhciDdk->Dma->PutAdapter(ctl->dmaAdapter);
IoDmaPutAdapter(ctl->dmaAdapter);
ctl->dmaAdapter = (IO_DMA_ADAPTER*)0;
return st;
}
@@ -1159,14 +1159,11 @@ static KSTATUS AhciAddDevice(DRIVER_OBJECT* driver, DEVICE_OBJECT* physicalDevic
return NTLSTATUS_SUCCESS;
}
// Implements the driver Entry operation.
KSTATUS DriverEntry(const NTL_DDK* ddk, NTL_DRIVER_INIT* init) {
(void)init;
if (!ddk || !ddk->Memory || !ddk->Memory->PhysToVirt || !ddk->Dma)
return NTLSTATUS_INVALID_PARAMETER;
static KSTATUS DriverInitialize(NTL_MODULE* module) {
(void)module;
DbgPrint("AHCI: driver loading...\n");
gAhciDdk = ddk;
g_controllerCount = 0;
g_nextDiskIndex = 0;
@@ -1178,9 +1175,8 @@ KSTATUS DriverEntry(const NTL_DDK* ddk, NTL_DRIVER_INIT* init) {
g_driver.MajorFunction[IRP_MJ_WRITE] = AhciDispatchReadWrite;
g_driver.MajorFunction[IRP_MJ_FLUSH_BUFFERS] = AhciDispatchFlush;
g_driver.MajorFunction[IRP_MJ_PNP] = AhciDispatchPnp;
KSTATUS st = IoRegisterDriverObject(&g_driver);
if (!KSUCCESS(st))
DbgPrint("AHCI: IoRegisterDriverObject failed: 0x%x\n", st);
return st;
return NTLSTATUS_SUCCESS;
}
static DRIVER_OBJECT* const gModuleIoDrivers[] = { &g_driver };
NTL_DECLARE_IO_MODULE(DriverInitialize, gModuleIoDrivers);