[reactos] 07/07: [ISAPNP] Create requirements and resource lists when detecting a device
https://git.reactos.org/?p=reactos.git;a=commitdiff;h=67141abef193080faa7a59...
commit 67141abef193080faa7a59ee096844a2f56f828d Author: Hervé Poussineau hpoussin@reactos.org AuthorDate: Sun Mar 22 14:20:52 2020 +0100 Commit: Hervé Poussineau hpoussin@reactos.org CommitDate: Sun Mar 22 14:29:38 2020 +0100
[ISAPNP] Create requirements and resource lists when detecting a device --- drivers/bus/isapnp/isapnp.c | 200 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 200 insertions(+)
diff --git a/drivers/bus/isapnp/isapnp.c b/drivers/bus/isapnp/isapnp.c index 5c5321b3308..e8862345cc0 100644 --- a/drivers/bus/isapnp/isapnp.c +++ b/drivers/bus/isapnp/isapnp.c @@ -3,6 +3,7 @@ * FILE: isapnp.c * PURPOSE: Driver entry * PROGRAMMERS: Cameron Gutman (cameron.gutman@reactos.org) + * Hervé Poussineau */
#include <isapnp.h> @@ -136,6 +137,198 @@ IsaFdoCreateDeviceIDs( return STATUS_SUCCESS; }
+static +NTSTATUS +NTAPI +IsaFdoCreateRequirements( + IN PISAPNP_PDO_EXTENSION PdoExt) +{ + PISAPNP_LOGICAL_DEVICE LogDev = PdoExt->IsaPnpDevice; + RTL_BITMAP IrqBitmap[ARRAYSIZE(LogDev->Irq)]; + ULONG IrqData[ARRAYSIZE(LogDev->Irq)]; + ULONG ResourceCount = 0; + ULONG ListSize, i, j; + BOOLEAN FirstIrq = TRUE; + PIO_RESOURCE_REQUIREMENTS_LIST RequirementsList; + PIO_RESOURCE_DESCRIPTOR Descriptor; + + /* Count number of requirements */ + for (i = 0; i < ARRAYSIZE(LogDev->Io); i++) + { + if (!LogDev->Io[i].Description.Length) + break; + ResourceCount++; + } + for (i = 0; i < ARRAYSIZE(LogDev->Irq); i++) + { + if (!LogDev->Irq[i].Description.Mask) + break; + IrqData[i] = LogDev->Irq[i].Description.Mask; + RtlInitializeBitMap(&IrqBitmap[i], &IrqData[i], 16); + ResourceCount += RtlNumberOfSetBits(&IrqBitmap[i]); + if (LogDev->Irq[i].Description.Information & 0x4) + { + /* Add room for level sensitive */ + ResourceCount += RtlNumberOfSetBits(&IrqBitmap[i]); + } + } + if (ResourceCount == 0) + return STATUS_SUCCESS; + + /* Allocate memory to store requirements */ + ListSize = sizeof(IO_RESOURCE_REQUIREMENTS_LIST) + + ResourceCount * sizeof(IO_RESOURCE_DESCRIPTOR); + RequirementsList = ExAllocatePool(PagedPool, ListSize); + if (!RequirementsList) + return STATUS_NO_MEMORY; + + RtlZeroMemory(RequirementsList, ListSize); + RequirementsList->ListSize = ListSize; + RequirementsList->InterfaceType = Isa; + RequirementsList->AlternativeLists = 1; + + RequirementsList->List[0].Version = 1; + RequirementsList->List[0].Revision = 1; + RequirementsList->List[0].Count = ResourceCount; + + /* Store requirements */ + Descriptor = RequirementsList->List[0].Descriptors; + for (i = 0; i < ARRAYSIZE(LogDev->Io); i++) + { + if (!LogDev->Io[i].Description.Length) + break; + DPRINT("Device.Io[%d].Information = 0x%02x\n", i, LogDev->Io[i].Description.Information); + DPRINT("Device.Io[%d].Minimum = 0x%02x\n", i, LogDev->Io[i].Description.Minimum); + DPRINT("Device.Io[%d].Maximum = 0x%02x\n", i, LogDev->Io[i].Description.Maximum); + DPRINT("Device.Io[%d].Alignment = 0x%02x\n", i, LogDev->Io[i].Description.Alignment); + DPRINT("Device.Io[%d].Length = 0x%02x\n", i, LogDev->Io[i].Description.Length); + Descriptor->Type = CmResourceTypePort; + Descriptor->ShareDisposition = CmResourceShareDeviceExclusive; + if (LogDev->Io[i].Description.Information & 0x1) + Descriptor->Flags = CM_RESOURCE_PORT_16_BIT_DECODE; + else + Descriptor->Flags = CM_RESOURCE_PORT_10_BIT_DECODE; + Descriptor->u.Port.Length = LogDev->Io[i].Description.Length; + Descriptor->u.Port.Alignment = LogDev->Io[i].Description.Alignment; + Descriptor->u.Port.MinimumAddress.LowPart = LogDev->Io[i].Description.Minimum; + Descriptor->u.Port.MaximumAddress.LowPart = LogDev->Io[i].Description.Maximum + LogDev->Io[i].Description.Length - 1; + Descriptor++; + } + for (i = 0; i < ARRAYSIZE(LogDev->Irq); i++) + { + if (!LogDev->Irq[i].Description.Mask) + break; + DPRINT("Device.Irq[%d].Mask = 0x%02x\n", i, LogDev->Irq[i].Description.Mask); + DPRINT("Device.Irq[%d].Information = 0x%02x\n", i, LogDev->Irq[i].Description.Information); + for (j = 0; j < 15; j++) + { + if (!RtlCheckBit(&IrqBitmap[i], j)) + continue; + if (FirstIrq) + FirstIrq = FALSE; + else + Descriptor->Option = IO_RESOURCE_ALTERNATIVE; + Descriptor->Type = CmResourceTypeInterrupt; + Descriptor->Flags = CM_RESOURCE_INTERRUPT_LATCHED; + Descriptor->u.Interrupt.MinimumVector = Descriptor->u.Interrupt.MaximumVector = j; + Descriptor++; + if (LogDev->Irq[i].Description.Information & 0x4) + { + /* Level interrupt */ + Descriptor->Option = IO_RESOURCE_ALTERNATIVE; + Descriptor->Type = CmResourceTypeInterrupt; + Descriptor->Flags = CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE; + Descriptor->u.Interrupt.MinimumVector = Descriptor->u.Interrupt.MaximumVector = j; + Descriptor++; + } + } + } + + PdoExt->RequirementsList = RequirementsList; + return STATUS_SUCCESS; +} + +static +NTSTATUS +NTAPI +IsaFdoCreateResources( + IN PISAPNP_PDO_EXTENSION PdoExt) +{ + PISAPNP_LOGICAL_DEVICE LogDev = PdoExt->IsaPnpDevice; + ULONG ResourceCount = 0; + ULONG ListSize, i; + PCM_RESOURCE_LIST ResourceList; + PCM_PARTIAL_RESOURCE_DESCRIPTOR Descriptor; + + /* Count number of required resources */ + for (i = 0; i < ARRAYSIZE(LogDev->Io); i++) + { + if (LogDev->Io[i].CurrentBase) + ResourceCount++; + else + break; + } + for (i = 0; i < ARRAYSIZE(LogDev->Irq); i++) + { + if (LogDev->Irq[i].CurrentNo) + ResourceCount++; + else + break; + } + if (ResourceCount == 0) + return STATUS_SUCCESS; + + /* Allocate memory to store resources */ + ListSize = sizeof(CM_RESOURCE_LIST) + + (ResourceCount - 1) * sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR); + ResourceList = ExAllocatePool(PagedPool, ListSize); + if (!ResourceList) + return STATUS_NO_MEMORY; + + RtlZeroMemory(ResourceList, ListSize); + ResourceList->Count = 1; + ResourceList->List[0].InterfaceType = Isa; + ResourceList->List[0].PartialResourceList.Version = 1; + ResourceList->List[0].PartialResourceList.Revision = 1; + ResourceList->List[0].PartialResourceList.Count = ResourceCount; + + /* Store resources */ + ResourceCount = 0; + for (i = 0; i < ARRAYSIZE(LogDev->Io); i++) + { + if (!LogDev->Io[i].CurrentBase) + continue; + Descriptor = &ResourceList->List[0].PartialResourceList.PartialDescriptors[ResourceCount++]; + Descriptor->Type = CmResourceTypePort; + Descriptor->ShareDisposition = CmResourceShareDeviceExclusive; + if (LogDev->Io[i].Description.Information & 0x1) + Descriptor->Flags = CM_RESOURCE_PORT_16_BIT_DECODE; + else + Descriptor->Flags = CM_RESOURCE_PORT_10_BIT_DECODE; + Descriptor->u.Port.Length = LogDev->Io[i].Description.Length; + Descriptor->u.Port.Start.LowPart = LogDev->Io[i].CurrentBase; + } + for (i = 0; i < ARRAYSIZE(LogDev->Irq); i++) + { + if (!LogDev->Irq[i].CurrentNo) + continue; + Descriptor = &ResourceList->List[0].PartialResourceList.PartialDescriptors[ResourceCount++]; + Descriptor->Type = CmResourceTypeInterrupt; + Descriptor->ShareDisposition = CmResourceShareDeviceExclusive; + if (LogDev->Irq[i].CurrentType & 0x01) + Descriptor->Flags = CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE; + else + Descriptor->Flags = CM_RESOURCE_INTERRUPT_LATCHED; + Descriptor->u.Interrupt.Level = LogDev->Irq[i].CurrentNo; + Descriptor->u.Interrupt.Vector = LogDev->Irq[i].CurrentNo; + Descriptor->u.Interrupt.Affinity = -1; + } + + PdoExt->ResourceList = ResourceList; + PdoExt->ResourceListSize = ListSize; + return STATUS_SUCCESS; +} + NTSTATUS NTAPI IsaPnpFillDeviceRelations( @@ -197,6 +390,13 @@ IsaPnpFillDeviceRelations( PdoExt->FdoExt = FdoExt;
Status = IsaFdoCreateDeviceIDs(PdoExt); + + if (NT_SUCCESS(Status)) + Status = IsaFdoCreateRequirements(PdoExt); + + if (NT_SUCCESS(Status)) + Status = IsaFdoCreateResources(PdoExt); + if (!NT_SUCCESS(Status)) { IoDeleteDevice(IsaDevice->Pdo);
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Hervé Poussineau