ASL_RESOURCE_NODE *
RsDoInterruptDescriptor (
ASL_RESOURCE_INFO *Info)
{
AML_RESOURCE *Descriptor;
AML_RESOURCE *Rover = NULL;
ACPI_PARSE_OBJECT *InitializerOp;
ASL_RESOURCE_NODE *Rnode;
UINT16 StringLength = 0;
UINT32 OptionIndex = 0;
UINT32 CurrentByteOffset;
UINT32 i;
BOOLEAN HasResSourceIndex = FALSE;
UINT8 ResSourceIndex = 0;
UINT8 *ResSourceString = NULL;
InitializerOp = Info->DescriptorTypeOp->Asl.Child;
CurrentByteOffset = Info->CurrentByteOffset;
StringLength = RsGetStringDataLength (InitializerOp);
/* Count the interrupt numbers */
for (i = 0; InitializerOp; i++)
{
InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
if (i <= 6)
{
if (i == 3 &&
InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
/*
* ResourceSourceIndex was specified, always make room for
* it, even if the ResourceSource was omitted.
*/
OptionIndex++;
}
continue;
}
OptionIndex += 4;
}
InitializerOp = Info->DescriptorTypeOp->Asl.Child;
Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_EXTENDED_IRQ) +
1 + OptionIndex + StringLength);
Descriptor = Rnode->Buffer;
Descriptor->ExtendedIrq.DescriptorType = ACPI_RESOURCE_NAME_EXTENDED_IRQ;
/*
* Initial descriptor length -- may be enlarged if there are
* optional fields present
*/
Descriptor->ExtendedIrq.ResourceLength = 2; /* Flags and table length byte */
Descriptor->ExtendedIrq.InterruptCount = 0;
Rover = ACPI_CAST_PTR (AML_RESOURCE,
(&(Descriptor->ExtendedIrq.Interrupts[0])));
/* Process all child initialization nodes */
for (i = 0; InitializerOp; i++)
{
switch (i)
{
case 0: /* Resource Usage (Default: consumer (1) */
RsSetFlagBits (&Descriptor->ExtendedIrq.Flags, InitializerOp, 0, 1);
break;
case 1: /* Interrupt Type (or Mode - edge/level) */
RsSetFlagBits (&Descriptor->ExtendedIrq.Flags, InitializerOp, 1, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTTYPE,
CurrentByteOffset + ASL_RESDESC_OFFSET (ExtendedIrq.Flags), 1);
break;
case 2: /* Interrupt Level (or Polarity - Active high/low) */
RsSetFlagBits (&Descriptor->ExtendedIrq.Flags, InitializerOp, 2, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTLEVEL,
CurrentByteOffset + ASL_RESDESC_OFFSET (ExtendedIrq.Flags), 2);
break;
case 3: /* Share Type - Default: exclusive (0) */
RsSetFlagBits (&Descriptor->ExtendedIrq.Flags, InitializerOp, 3, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTSHARE,
CurrentByteOffset + ASL_RESDESC_OFFSET (ExtendedIrq.Flags), 3);
break;
case 4: /* ResSourceIndex [Optional Field - BYTE] */
if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
HasResSourceIndex = TRUE;
ResSourceIndex = (UINT8) InitializerOp->Asl.Value.Integer;
}
break;
case 5: /* ResSource [Optional Field - STRING] */
if ((InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG) &&
(InitializerOp->Asl.Value.String))
{
if (StringLength)
{
ResSourceString = (UINT8 *) InitializerOp->Asl.Value.String;
}
/* ResourceSourceIndex must also be valid */
if (!HasResSourceIndex)
{
AslError (ASL_ERROR, ASL_MSG_RESOURCE_INDEX,
InitializerOp, NULL);
}
}
#if 0
/*
* Not a valid ResourceSource, ResourceSourceIndex must also
* be invalid
*/
else if (HasResSourceIndex)
{
AslError (ASL_ERROR, ASL_MSG_RESOURCE_SOURCE,
InitializerOp, NULL);
}
#endif
break;
case 6: /* ResourceTag */
UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
break;
default:
/*
* Interrupt Numbers come through here, repeatedly
*/
/* Maximum 255 interrupts allowed for this descriptor */
if (Descriptor->ExtendedIrq.InterruptCount == 255)
{
AslError (ASL_ERROR, ASL_MSG_EX_INTERRUPT_LIST,
InitializerOp, NULL);
return (Rnode);
}
/* Each interrupt number must be a 32-bit value */
if (InitializerOp->Asl.Value.Integer > ACPI_UINT32_MAX)
{
AslError (ASL_ERROR, ASL_MSG_EX_INTERRUPT_NUMBER,
InitializerOp, NULL);
}
/* Save the integer and move pointer to the next one */
Rover->DwordItem = (UINT32) InitializerOp->Asl.Value.Integer;
Rover = ACPI_ADD_PTR (AML_RESOURCE, &(Rover->DwordItem), 4);
Descriptor->ExtendedIrq.InterruptCount++;
Descriptor->ExtendedIrq.ResourceLength += 4;
/* Case 7: First interrupt number in list */
if (i == 7)
{
if (InitializerOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
{
/* Must be at least one interrupt */
AslError (ASL_ERROR, ASL_MSG_EX_INTERRUPT_LIST_MIN,
InitializerOp, NULL);
}
/* Check now for duplicates in list */
RsCheckListForDuplicates (InitializerOp);
/* Create a named field at the start of the list */
RsCreateDwordField (InitializerOp, ACPI_RESTAG_INTERRUPT,
CurrentByteOffset +
ASL_RESDESC_OFFSET (ExtendedIrq.Interrupts[0]));
}
}
InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
}
/* Add optional ResSourceIndex if present */
if (HasResSourceIndex)
{
Rover->ByteItem = ResSourceIndex;
Rover = ACPI_ADD_PTR (AML_RESOURCE, &(Rover->ByteItem), 1);
Descriptor->ExtendedIrq.ResourceLength += 1;
}
/* Add optional ResSource string if present */
if (StringLength && ResSourceString)
{
strcpy ((char *) Rover, (char *) ResSourceString);
Rover = ACPI_ADD_PTR (
AML_RESOURCE, &(Rover->ByteItem), StringLength);
Descriptor->ExtendedIrq.ResourceLength = (UINT16)
(Descriptor->ExtendedIrq.ResourceLength + StringLength);
}
Rnode->BufferLength =
(ASL_RESDESC_OFFSET (ExtendedIrq.Interrupts[0]) -
ASL_RESDESC_OFFSET (ExtendedIrq.DescriptorType))
+ OptionIndex + StringLength;
return (Rnode);
}
ASL_RESOURCE_NODE *
RsDoDmaDescriptor (
ACPI_PARSE_OBJECT *Op,
UINT32 CurrentByteOffset)
{
AML_RESOURCE *Descriptor;
ACPI_PARSE_OBJECT *InitializerOp;
ASL_RESOURCE_NODE *Rnode;
UINT32 i;
UINT8 DmaChannelMask = 0;
UINT8 DmaChannels = 0;
InitializerOp = Op->Asl.Child;
Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_DMA));
Descriptor = Rnode->Buffer;
Descriptor->Dma.DescriptorType = ACPI_RESOURCE_NAME_DMA |
ASL_RDESC_DMA_SIZE;
/* Process all child initialization nodes */
for (i = 0; InitializerOp; i++)
{
switch (i)
{
case 0: /* DMA type */
RsSetFlagBits (&Descriptor->Dma.Flags, InitializerOp, 5, 0);
RsCreateMultiBitField (InitializerOp, ACPI_RESTAG_DMATYPE,
CurrentByteOffset + ASL_RESDESC_OFFSET (Dma.Flags), 5, 2);
break;
case 1: /* Bus Master */
RsSetFlagBits (&Descriptor->Dma.Flags, InitializerOp, 2, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_BUSMASTER,
CurrentByteOffset + ASL_RESDESC_OFFSET (Dma.Flags), 2);
break;
case 2: /* Xfer Type (transfer width) */
RsSetFlagBits (&Descriptor->Dma.Flags, InitializerOp, 0, 0);
RsCreateMultiBitField (InitializerOp, ACPI_RESTAG_XFERTYPE,
CurrentByteOffset + ASL_RESDESC_OFFSET (Dma.Flags), 0, 2);
break;
case 3: /* Name */
UtAttachNamepathToOwner (Op, InitializerOp);
break;
default:
/* All DMA channel bytes are handled here, after flags and name */
if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
/* Up to 8 channels can be specified in the list */
DmaChannels++;
if (DmaChannels > 8)
{
AslError (ASL_ERROR, ASL_MSG_DMA_LIST,
InitializerOp, NULL);
return (Rnode);
}
/* Only DMA channels 0-7 are allowed (mask is 8 bits) */
if (InitializerOp->Asl.Value.Integer > 7)
{
AslError (ASL_ERROR, ASL_MSG_DMA_CHANNEL,
InitializerOp, NULL);
}
/* Build the mask */
DmaChannelMask |=
(1 << ((UINT8) InitializerOp->Asl.Value.Integer));
}
if (i == 4) /* case 4: First DMA byte */
{
/* Check now for duplicates in list */
RsCheckListForDuplicates (InitializerOp);
/* Create a named field at the start of the list */
RsCreateByteField (InitializerOp, ACPI_RESTAG_DMA,
CurrentByteOffset +
ASL_RESDESC_OFFSET (Dma.DmaChannelMask));
}
break;
}
InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
}
/* Now we can set the channel mask */
Descriptor->Dma.DmaChannelMask = DmaChannelMask;
return (Rnode);
}
ASL_RESOURCE_NODE *
RsDoIrqDescriptor (
ACPI_PARSE_OBJECT *Op,
UINT32 CurrentByteOffset)
{
AML_RESOURCE *Descriptor;
ACPI_PARSE_OBJECT *InitializerOp;
ASL_RESOURCE_NODE *Rnode;
UINT32 Interrupts = 0;
UINT16 IrqMask = 0;
UINT32 i;
InitializerOp = Op->Asl.Child;
Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_IRQ));
/* Length = 3 (with flag byte) */
Descriptor = Rnode->Buffer;
Descriptor->Irq.DescriptorType = ACPI_RESOURCE_NAME_IRQ |
(ASL_RDESC_IRQ_SIZE + 0x01);
/* Process all child initialization nodes */
for (i = 0; InitializerOp; i++)
{
switch (i)
{
case 0: /* Interrupt Type (or Mode - edge/level) */
RsSetFlagBits (&Descriptor->Irq.Flags, InitializerOp, 0, 1);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTTYPE,
CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.Flags), 0);
break;
case 1: /* Interrupt Level (or Polarity - Active high/low) */
RsSetFlagBits (&Descriptor->Irq.Flags, InitializerOp, 3, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTLEVEL,
CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.Flags), 3);
break;
case 2: /* Share Type - Default: exclusive (0) */
RsSetFlagBits (&Descriptor->Irq.Flags, InitializerOp, 4, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTSHARE,
CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.Flags), 4);
break;
case 3: /* Name */
UtAttachNamepathToOwner (Op, InitializerOp);
break;
default:
/* All IRQ bytes are handled here, after the flags and name */
if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
/* Up to 16 interrupts can be specified in the list */
Interrupts++;
if (Interrupts > 16)
{
AslError (ASL_ERROR, ASL_MSG_INTERRUPT_LIST,
InitializerOp, NULL);
return (Rnode);
}
/* Only interrupts 0-15 are allowed (mask is 16 bits) */
if (InitializerOp->Asl.Value.Integer > 15)
{
AslError (ASL_ERROR, ASL_MSG_INTERRUPT_NUMBER,
InitializerOp, NULL);
}
else
{
IrqMask |= (1 << (UINT8) InitializerOp->Asl.Value.Integer);
}
}
/* Case 4: First IRQ value in list */
if (i == 4)
{
/* Check now for duplicates in list */
RsCheckListForDuplicates (InitializerOp);
/* Create a named field at the start of the list */
RsCreateWordField (InitializerOp, ACPI_RESTAG_INTERRUPT,
CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.IrqMask));
}
break;
}
InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
}
/* Now we can set the channel mask */
Descriptor->Irq.IrqMask = IrqMask;
return (Rnode);
}
ASL_RESOURCE_NODE *
RsDoIrqNoFlagsDescriptor (
ACPI_PARSE_OBJECT *Op,
UINT32 CurrentByteOffset)
{
AML_RESOURCE *Descriptor;
ACPI_PARSE_OBJECT *InitializerOp;
ASL_RESOURCE_NODE *Rnode;
UINT16 IrqMask = 0;
UINT32 Interrupts = 0;
UINT32 i;
InitializerOp = Op->Asl.Child;
Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_IRQ_NOFLAGS));
Descriptor = Rnode->Buffer;
Descriptor->Irq.DescriptorType = ACPI_RESOURCE_NAME_IRQ |
ASL_RDESC_IRQ_SIZE;
/* Process all child initialization nodes */
for (i = 0; InitializerOp; i++)
{
switch (i)
{
case 0: /* Name */
UtAttachNamepathToOwner (Op, InitializerOp);
break;
default:
/* IRQ bytes are handled here, after the flags and name */
if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
/* Up to 16 interrupts can be specified in the list */
Interrupts++;
if (Interrupts > 16)
{
AslError (ASL_ERROR, ASL_MSG_INTERRUPT_LIST,
InitializerOp, NULL);
return (Rnode);
}
/* Only interrupts 0-15 are allowed (mask is 16 bits) */
if (InitializerOp->Asl.Value.Integer > 15)
{
AslError (ASL_ERROR, ASL_MSG_INTERRUPT_NUMBER,
InitializerOp, NULL);
}
else
{
IrqMask |= (1 << ((UINT8) InitializerOp->Asl.Value.Integer));
}
}
/* Case 1: First IRQ value in list */
if (i == 1)
{
/* Check now for duplicates in list */
RsCheckListForDuplicates (InitializerOp);
/* Create a named field at the start of the list */
RsCreateWordField (InitializerOp, ACPI_RESTAG_INTERRUPT,
CurrentByteOffset + ASL_RESDESC_OFFSET (Irq.IrqMask));
}
break;
}
InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
}
/* Now we can set the interrupt mask */
Descriptor->Irq.IrqMask = IrqMask;
return (Rnode);
}
ASL_RESOURCE_NODE *
RsDoGpioIoDescriptor (
ASL_RESOURCE_INFO *Info)
{
AML_RESOURCE *Descriptor;
ACPI_PARSE_OBJECT *InitializerOp;
ASL_RESOURCE_NODE *Rnode;
char *ResourceSource = NULL;
UINT8 *VendorData = NULL;
UINT16 *InterruptList = NULL;
UINT16 *PinList = NULL;
UINT16 ResSourceLength;
UINT16 VendorLength;
UINT16 InterruptLength;
UINT16 DescriptorSize;
UINT32 CurrentByteOffset;
UINT32 PinCount = 0;
UINT32 i;
InitializerOp = Info->DescriptorTypeOp->Asl.Child;
CurrentByteOffset = Info->CurrentByteOffset;
/*
* Calculate lengths for fields that have variable length:
* 1) Resource Source string
* 2) Vendor Data buffer
* 3) PIN (interrupt) list
*/
ResSourceLength = RsGetStringDataLength (InitializerOp);
VendorLength = RsGetBufferDataLength (InitializerOp);
InterruptLength = RsGetInterruptDataLength (InitializerOp);
PinList = InterruptList;
DescriptorSize = ACPI_AML_SIZE_LARGE (AML_RESOURCE_GPIO) +
ResSourceLength + VendorLength + InterruptLength;
/* Allocate the local resource node and initialize */
Rnode = RsAllocateResourceNode (DescriptorSize + sizeof (AML_RESOURCE_LARGE_HEADER));
Descriptor = Rnode->Buffer;
Descriptor->Gpio.ResourceLength = DescriptorSize;
Descriptor->Gpio.DescriptorType = ACPI_RESOURCE_NAME_GPIO;
Descriptor->Gpio.RevisionId = AML_RESOURCE_GPIO_REVISION;
Descriptor->Gpio.ConnectionType = AML_RESOURCE_GPIO_TYPE_IO;
/* Build pointers to optional areas */
InterruptList = ACPI_ADD_PTR (UINT16, Descriptor, sizeof (AML_RESOURCE_GPIO));
PinList = InterruptList;
ResourceSource = ACPI_ADD_PTR (char, InterruptList, InterruptLength);
VendorData = ACPI_ADD_PTR (UINT8, ResourceSource, ResSourceLength);
/* Setup offsets within the descriptor */
Descriptor->Gpio.PinTableOffset = (UINT16)
ACPI_PTR_DIFF (InterruptList, Descriptor);
Descriptor->Gpio.ResSourceOffset = (UINT16)
ACPI_PTR_DIFF (ResourceSource, Descriptor);
DbgPrint (ASL_DEBUG_OUTPUT,
"%16s - Actual: %.2X, Base: %.2X, ResLen: %.2X, VendLen: %.2X, IntLen: %.2X\n",
"GpioIo", Descriptor->Gpio.ResourceLength, (UINT16) sizeof (AML_RESOURCE_GPIO),
ResSourceLength, VendorLength, InterruptLength);
/* Process all child initialization nodes */
for (i = 0; InitializerOp; i++)
{
switch (i)
{
case 0: /* Share Type [Flags] (_SHR) */
RsSetFlagBits16 (&Descriptor->Gpio.IntFlags, InitializerOp, 3, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTSHARE,
CurrentByteOffset + ASL_RESDESC_OFFSET (Gpio.IntFlags), 3);
break;
case 1: /* Pin Config [BYTE] (_PPI) */
Descriptor->Gpio.PinConfig = (UINT8) InitializerOp->Asl.Value.Integer;
RsCreateByteField (InitializerOp, ACPI_RESTAG_PINCONFIG,
CurrentByteOffset + ASL_RESDESC_OFFSET (Gpio.PinConfig));
break;
case 2: /* Debounce Timeout [WORD] (_DBT) */
Descriptor->Gpio.DebounceTimeout = (UINT16) InitializerOp->Asl.Value.Integer;
RsCreateWordField (InitializerOp, ACPI_RESTAG_DEBOUNCETIME,
CurrentByteOffset + ASL_RESDESC_OFFSET (Gpio.DebounceTimeout));
break;
case 3: /* Drive Strength [WORD] (_DRS) */
Descriptor->Gpio.DriveStrength = (UINT16) InitializerOp->Asl.Value.Integer;
RsCreateWordField (InitializerOp, ACPI_RESTAG_DRIVESTRENGTH,
CurrentByteOffset + ASL_RESDESC_OFFSET (Gpio.DriveStrength));
break;
case 4: /* I/O Restriction [Flag] (_IOR) */
RsSetFlagBits16 (&Descriptor->Gpio.IntFlags, InitializerOp, 0, 0);
RsCreateMultiBitField (InitializerOp, ACPI_RESTAG_IORESTRICTION,
CurrentByteOffset + ASL_RESDESC_OFFSET (Gpio.IntFlags), 0, 2);
break;
case 5: /* ResSource [Optional Field - STRING] */
if (ResSourceLength)
{
/* Copy string to the descriptor */
strcpy (ResourceSource,
InitializerOp->Asl.Value.String);
}
break;
case 6: /* Resource Index */
if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
Descriptor->Gpio.ResSourceIndex = (UINT8) InitializerOp->Asl.Value.Integer;
}
break;
case 7: /* Resource Usage (consumer/producer) */
RsSetFlagBits16 (&Descriptor->Gpio.Flags, InitializerOp, 0, 1);
break;
case 8: /* Resource Tag (Descriptor Name) */
UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
break;
case 9: /* Vendor Data (Optional - Buffer of BYTEs) (_VEN) */
/*
* Always set the VendorOffset even if there is no Vendor Data.
* This field is required in order to calculate the length
* of the ResourceSource at runtime.
*/
Descriptor->Gpio.VendorOffset = (UINT16)
ACPI_PTR_DIFF (VendorData, Descriptor);
if (RsGetVendorData (InitializerOp, VendorData,
(CurrentByteOffset + Descriptor->Gpio.VendorOffset)))
{
Descriptor->Gpio.VendorLength = VendorLength;
}
break;
default:
/*
* PINs come through here, repeatedly. Each PIN must be a DWORD.
* NOTE: there is no "length" field for this, so from ACPI spec:
* The number of pins in the table can be calculated from:
* PinCount = (Resource Source Name Offset - Pin Table Offset) / 2
* (implies resource source must immediately follow the pin list.)
* Name: _PIN
*/
*InterruptList = (UINT16) InitializerOp->Asl.Value.Integer;
InterruptList++;
PinCount++;
/* Case 10: First interrupt number in list */
if (i == 10)
{
if (InitializerOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
{
/* Must be at least one interrupt */
AslError (ASL_ERROR, ASL_MSG_EX_INTERRUPT_LIST_MIN,
InitializerOp, NULL);
}
/* Check now for duplicates in list */
RsCheckListForDuplicates (InitializerOp);
/* Create a named field at the start of the list */
RsCreateDwordField (InitializerOp, ACPI_RESTAG_PIN,
CurrentByteOffset + Descriptor->Gpio.PinTableOffset);
}
break;
}
InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
}
MpSaveGpioInfo (Info->MappingOp, Descriptor, PinCount, PinList, ResourceSource);
return (Rnode);
}
