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Diffstat (limited to 'sys/contrib/dev/acpica/rsirq.c')
| -rw-r--r-- | sys/contrib/dev/acpica/rsirq.c | 671 |
1 files changed, 671 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/rsirq.c b/sys/contrib/dev/acpica/rsirq.c new file mode 100644 index 0000000..12bc827 --- /dev/null +++ b/sys/contrib/dev/acpica/rsirq.c @@ -0,0 +1,671 @@ +/******************************************************************************* + * + * Module Name: rsirq - IRQ resource descriptors + * $Revision: 30 $ + * + ******************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp. + * All rights reserved. + * + * 2. License + * + * 2.1. This is your license from Intel Corp. under its intellectual property + * rights. You may have additional license terms from the party that provided + * you this software, covering your right to use that party's intellectual + * property rights. + * + * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a + * copy of the source code appearing in this file ("Covered Code") an + * irrevocable, perpetual, worldwide license under Intel's copyrights in the + * base code distributed originally by Intel ("Original Intel Code") to copy, + * make derivatives, distribute, use and display any portion of the Covered + * Code in any form, with the right to sublicense such rights; and + * + * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent + * license (with the right to sublicense), under only those claims of Intel + * patents that are infringed by the Original Intel Code, to make, use, sell, + * offer to sell, and import the Covered Code and derivative works thereof + * solely to the minimum extent necessary to exercise the above copyright + * license, and in no event shall the patent license extend to any additions + * to or modifications of the Original Intel Code. No other license or right + * is granted directly or by implication, estoppel or otherwise; + * + * The above copyright and patent license is granted only if the following + * conditions are met: + * + * 3. Conditions + * + * 3.1. Redistribution of Source with Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification with rights to further distribute source must include + * the above Copyright Notice, the above License, this list of Conditions, + * and the following Disclaimer and Export Compliance provision. In addition, + * Licensee must cause all Covered Code to which Licensee contributes to + * contain a file documenting the changes Licensee made to create that Covered + * Code and the date of any change. Licensee must include in that file the + * documentation of any changes made by any predecessor Licensee. Licensee + * must include a prominent statement that the modification is derived, + * directly or indirectly, from Original Intel Code. + * + * 3.2. Redistribution of Source with no Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification without rights to further distribute source must + * include the following Disclaimer and Export Compliance provision in the + * documentation and/or other materials provided with distribution. In + * addition, Licensee may not authorize further sublicense of source of any + * portion of the Covered Code, and must include terms to the effect that the + * license from Licensee to its licensee is limited to the intellectual + * property embodied in the software Licensee provides to its licensee, and + * not to intellectual property embodied in modifications its licensee may + * make. + * + * 3.3. Redistribution of Executable. Redistribution in executable form of any + * substantial portion of the Covered Code or modification must reproduce the + * above Copyright Notice, and the following Disclaimer and Export Compliance + * provision in the documentation and/or other materials provided with the + * distribution. + * + * 3.4. Intel retains all right, title, and interest in and to the Original + * Intel Code. + * + * 3.5. Neither the name Intel nor any other trademark owned or controlled by + * Intel shall be used in advertising or otherwise to promote the sale, use or + * other dealings in products derived from or relating to the Covered Code + * without prior written authorization from Intel. + * + * 4. Disclaimer and Export Compliance + * + * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED + * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE + * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, + * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY + * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY + * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A + * PARTICULAR PURPOSE. + * + * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES + * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR + * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, + * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY + * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL + * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS + * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY + * LIMITED REMEDY. + * + * 4.3. Licensee shall not export, either directly or indirectly, any of this + * software or system incorporating such software without first obtaining any + * required license or other approval from the U. S. Department of Commerce or + * any other agency or department of the United States Government. In the + * event Licensee exports any such software from the United States or + * re-exports any such software from a foreign destination, Licensee shall + * ensure that the distribution and export/re-export of the software is in + * compliance with all laws, regulations, orders, or other restrictions of the + * U.S. Export Administration Regulations. Licensee agrees that neither it nor + * any of its subsidiaries will export/re-export any technical data, process, + * software, or service, directly or indirectly, to any country for which the + * United States government or any agency thereof requires an export license, + * other governmental approval, or letter of assurance, without first obtaining + * such license, approval or letter. + * + *****************************************************************************/ + +#define __RSIRQ_C__ + +#include "acpi.h" +#include "acresrc.h" + +#define _COMPONENT ACPI_RESOURCES + ACPI_MODULE_NAME ("rsirq") + + +/******************************************************************************* + * + * FUNCTION: AcpiRsIrqResource + * + * PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte + * stream + * BytesConsumed - Pointer to where the number of bytes + * consumed the ByteStreamBuffer is + * returned + * OutputBuffer - Pointer to the return data buffer + * StructureSize - Pointer to where the number of bytes + * in the return data struct is returned + * + * RETURN: Status + * + * DESCRIPTION: Take the resource byte stream and fill out the appropriate + * structure pointed to by the OutputBuffer. Return the + * number of bytes consumed from the byte stream. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiRsIrqResource ( + UINT8 *ByteStreamBuffer, + ACPI_SIZE *BytesConsumed, + UINT8 **OutputBuffer, + ACPI_SIZE *StructureSize) +{ + UINT8 *Buffer = ByteStreamBuffer; + ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer; + UINT16 Temp16 = 0; + UINT8 Temp8 = 0; + UINT8 Index; + UINT8 i; + ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_IRQ); + + + ACPI_FUNCTION_TRACE ("RsIrqResource"); + + + /* + * The number of bytes consumed are contained in the descriptor + * (Bits:0-1) + */ + Temp8 = *Buffer; + *BytesConsumed = (Temp8 & 0x03) + 1; + OutputStruct->Id = ACPI_RSTYPE_IRQ; + + /* + * Point to the 16-bits of Bytes 1 and 2 + */ + Buffer += 1; + ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer); + + OutputStruct->Data.Irq.NumberOfInterrupts = 0; + + /* Decode the IRQ bits */ + + for (i = 0, Index = 0; Index < 16; Index++) + { + if ((Temp16 >> Index) & 0x01) + { + OutputStruct->Data.Irq.Interrupts[i] = Index; + i++; + } + } + + /* Zero interrupts is valid */ + + OutputStruct->Data.Irq.NumberOfInterrupts = i; + if (i > 0) + { + /* + * Calculate the structure size based upon the number of interrupts + */ + StructSize += ((ACPI_SIZE) i - 1) * 4; + } + + /* + * Point to Byte 3 if it is used + */ + if (4 == *BytesConsumed) + { + Buffer += 2; + Temp8 = *Buffer; + + /* + * Check for HE, LL or HL + */ + if (Temp8 & 0x01) + { + OutputStruct->Data.Irq.EdgeLevel = ACPI_EDGE_SENSITIVE; + OutputStruct->Data.Irq.ActiveHighLow = ACPI_ACTIVE_HIGH; + } + else + { + if (Temp8 & 0x8) + { + OutputStruct->Data.Irq.EdgeLevel = ACPI_LEVEL_SENSITIVE; + OutputStruct->Data.Irq.ActiveHighLow = ACPI_ACTIVE_LOW; + } + else + { + /* + * Only _LL and _HE polarity/trigger interrupts + * are allowed (ACPI spec v1.0b ection 6.4.2.1), + * so an error will occur if we reach this point + */ + ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid interrupt polarity/trigger in resource list\n")); + return_ACPI_STATUS (AE_BAD_DATA); + } + } + + /* + * Check for sharable + */ + OutputStruct->Data.Irq.SharedExclusive = (Temp8 >> 3) & 0x01; + } + else + { + /* + * Assume Edge Sensitive, Active High, Non-Sharable + * per ACPI Specification + */ + OutputStruct->Data.Irq.EdgeLevel = ACPI_EDGE_SENSITIVE; + OutputStruct->Data.Irq.ActiveHighLow = ACPI_ACTIVE_HIGH; + OutputStruct->Data.Irq.SharedExclusive = ACPI_EXCLUSIVE; + } + + /* + * Set the Length parameter + */ + OutputStruct->Length = (UINT32) StructSize; + + /* + * Return the final size of the structure + */ + *StructureSize = StructSize; + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiRsIrqStream + * + * PARAMETERS: LinkedList - Pointer to the resource linked list + * OutputBuffer - Pointer to the user's return buffer + * BytesConsumed - Pointer to where the number of bytes + * used in the OutputBuffer is returned + * + * RETURN: Status + * + * DESCRIPTION: Take the linked list resource structure and fills in the + * the appropriate bytes in a byte stream + * + ******************************************************************************/ + +ACPI_STATUS +AcpiRsIrqStream ( + ACPI_RESOURCE *LinkedList, + UINT8 **OutputBuffer, + ACPI_SIZE *BytesConsumed) +{ + UINT8 *Buffer = *OutputBuffer; + UINT16 Temp16 = 0; + UINT8 Temp8 = 0; + UINT8 Index; + BOOLEAN IRQInfoByteNeeded; + + + ACPI_FUNCTION_TRACE ("RsIrqStream"); + + + /* + * The descriptor field is set based upon whether a third byte is + * needed to contain the IRQ Information. + */ + if (ACPI_EDGE_SENSITIVE == LinkedList->Data.Irq.EdgeLevel && + ACPI_ACTIVE_HIGH == LinkedList->Data.Irq.ActiveHighLow && + ACPI_EXCLUSIVE == LinkedList->Data.Irq.SharedExclusive) + { + *Buffer = 0x22; + IRQInfoByteNeeded = FALSE; + } + else + { + *Buffer = 0x23; + IRQInfoByteNeeded = TRUE; + } + + Buffer += 1; + Temp16 = 0; + + /* + * Loop through all of the interrupts and set the mask bits + */ + for(Index = 0; + Index < LinkedList->Data.Irq.NumberOfInterrupts; + Index++) + { + Temp8 = (UINT8) LinkedList->Data.Irq.Interrupts[Index]; + Temp16 |= 0x1 << Temp8; + } + + ACPI_MOVE_UNALIGNED16_TO_16 (Buffer, &Temp16); + Buffer += 2; + + /* + * Set the IRQ Info byte if needed. + */ + if (IRQInfoByteNeeded) + { + Temp8 = 0; + Temp8 = (UINT8) ((LinkedList->Data.Irq.SharedExclusive & + 0x01) << 4); + + if (ACPI_LEVEL_SENSITIVE == LinkedList->Data.Irq.EdgeLevel && + ACPI_ACTIVE_LOW == LinkedList->Data.Irq.ActiveHighLow) + { + Temp8 |= 0x08; + } + else + { + Temp8 |= 0x01; + } + + *Buffer = Temp8; + Buffer += 1; + } + + /* + * Return the number of bytes consumed in this operation + */ + *BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer); + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiRsExtendedIrqResource + * + * PARAMETERS: ByteStreamBuffer - Pointer to the resource input byte + * stream + * BytesConsumed - Pointer to where the number of bytes + * consumed the ByteStreamBuffer is + * returned + * OutputBuffer - Pointer to the return data buffer + * StructureSize - Pointer to where the number of bytes + * in the return data struct is returned + * + * RETURN: Status + * + * DESCRIPTION: Take the resource byte stream and fill out the appropriate + * structure pointed to by the OutputBuffer. Return the + * number of bytes consumed from the byte stream. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiRsExtendedIrqResource ( + UINT8 *ByteStreamBuffer, + ACPI_SIZE *BytesConsumed, + UINT8 **OutputBuffer, + ACPI_SIZE *StructureSize) +{ + UINT8 *Buffer = ByteStreamBuffer; + ACPI_RESOURCE *OutputStruct = (void *) *OutputBuffer; + UINT16 Temp16 = 0; + UINT8 Temp8 = 0; + UINT8 *TempPtr; + UINT8 Index; + ACPI_SIZE StructSize = ACPI_SIZEOF_RESOURCE (ACPI_RESOURCE_EXT_IRQ); + + + ACPI_FUNCTION_TRACE ("RsExtendedIrqResource"); + + + /* + * Point past the Descriptor to get the number of bytes consumed + */ + Buffer += 1; + ACPI_MOVE_UNALIGNED16_TO_16 (&Temp16, Buffer); + + *BytesConsumed = Temp16 + 3; + OutputStruct->Id = ACPI_RSTYPE_EXT_IRQ; + + /* + * Point to the Byte3 + */ + Buffer += 2; + Temp8 = *Buffer; + + OutputStruct->Data.ExtendedIrq.ProducerConsumer = Temp8 & 0x01; + + /* + * Check for Interrupt Mode + * + * The definition of an Extended IRQ changed between ACPI spec v1.0b + * and ACPI spec 2.0 (section 6.4.3.6 in both). + * + * - Edge/Level are defined opposite in the table vs the headers + */ + OutputStruct->Data.ExtendedIrq.EdgeLevel = + (Temp8 & 0x2) ? ACPI_EDGE_SENSITIVE : ACPI_LEVEL_SENSITIVE; + + /* + * Check Interrupt Polarity + */ + OutputStruct->Data.ExtendedIrq.ActiveHighLow = (Temp8 >> 2) & 0x1; + + /* + * Check for sharable + */ + OutputStruct->Data.ExtendedIrq.SharedExclusive = (Temp8 >> 3) & 0x01; + + /* + * Point to Byte4 (IRQ Table length) + */ + Buffer += 1; + Temp8 = *Buffer; + + OutputStruct->Data.ExtendedIrq.NumberOfInterrupts = Temp8; + + /* + * Add any additional structure size to properly calculate + * the next pointer at the end of this function + */ + StructSize += (Temp8 - 1) * 4; + + /* + * Point to Byte5 (First IRQ Number) + */ + Buffer += 1; + + /* + * Cycle through every IRQ in the table + */ + for (Index = 0; Index < Temp8; Index++) + { + ACPI_MOVE_UNALIGNED32_TO_32 ( + &OutputStruct->Data.ExtendedIrq.Interrupts[Index], Buffer); + + /* Point to the next IRQ */ + + Buffer += 4; + } + + /* + * This will leave us pointing to the Resource Source Index + * If it is present, then save it off and calculate the + * pointer to where the null terminated string goes: + * Each Interrupt takes 32-bits + the 5 bytes of the + * stream that are default. + */ + if (*BytesConsumed > + ((ACPI_SIZE) OutputStruct->Data.ExtendedIrq.NumberOfInterrupts * 4) + 5) + { + /* Dereference the Index */ + + Temp8 = *Buffer; + OutputStruct->Data.ExtendedIrq.ResourceSource.Index = (UINT32) Temp8; + + /* Point to the String */ + + Buffer += 1; + + /* + * Point the String pointer to the end of this structure. + */ + OutputStruct->Data.ExtendedIrq.ResourceSource.StringPtr = + (NATIVE_CHAR *)(OutputStruct + StructSize); + + TempPtr = (UINT8 *) OutputStruct->Data.ExtendedIrq.ResourceSource.StringPtr; + + /* Copy the string into the buffer */ + + Index = 0; + while (0x00 != *Buffer) + { + *TempPtr = *Buffer; + + TempPtr += 1; + Buffer += 1; + Index += 1; + } + + /* + * Add the terminating null + */ + *TempPtr = 0x00; + OutputStruct->Data.ExtendedIrq.ResourceSource.StringLength = Index + 1; + + /* + * In order for the StructSize to fall on a 32-bit boundary, + * calculate the length of the string and expand the + * StructSize to the next 32-bit boundary. + */ + Temp8 = (UINT8) (Index + 1); + StructSize += ACPI_ROUND_UP_TO_32BITS (Temp8); + } + else + { + OutputStruct->Data.ExtendedIrq.ResourceSource.Index = 0x00; + OutputStruct->Data.ExtendedIrq.ResourceSource.StringLength = 0; + OutputStruct->Data.ExtendedIrq.ResourceSource.StringPtr = NULL; + } + + /* + * Set the Length parameter + */ + OutputStruct->Length = (UINT32) StructSize; + + /* + * Return the final size of the structure + */ + *StructureSize = StructSize; + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiRsExtendedIrqStream + * + * PARAMETERS: LinkedList - Pointer to the resource linked list + * OutputBuffer - Pointer to the user's return buffer + * BytesConsumed - Pointer to where the number of bytes + * used in the OutputBuffer is returned + * + * RETURN: Status + * + * DESCRIPTION: Take the linked list resource structure and fills in the + * the appropriate bytes in a byte stream + * + ******************************************************************************/ + +ACPI_STATUS +AcpiRsExtendedIrqStream ( + ACPI_RESOURCE *LinkedList, + UINT8 **OutputBuffer, + ACPI_SIZE *BytesConsumed) +{ + UINT8 *Buffer = *OutputBuffer; + UINT16 *LengthField; + UINT8 Temp8 = 0; + UINT8 Index; + NATIVE_CHAR *TempPointer = NULL; + + + ACPI_FUNCTION_TRACE ("RsExtendedIrqStream"); + + + /* + * The descriptor field is static + */ + *Buffer = 0x89; + Buffer += 1; + + /* + * Set a pointer to the Length field - to be filled in later + */ + LengthField = ACPI_CAST_PTR (UINT16, Buffer); + Buffer += 2; + + /* + * Set the Interrupt vector flags + */ + Temp8 = (UINT8)(LinkedList->Data.ExtendedIrq.ProducerConsumer & 0x01); + Temp8 |= ((LinkedList->Data.ExtendedIrq.SharedExclusive & 0x01) << 3); + + /* + * Set the Interrupt Mode + * + * The definition of an Extended IRQ changed between ACPI spec v1.0b + * and ACPI spec 2.0 (section 6.4.3.6 in both). This code does not + * implement the more restrictive definition of 1.0b + * + * - Edge/Level are defined opposite in the table vs the headers + */ + if (ACPI_EDGE_SENSITIVE == LinkedList->Data.ExtendedIrq.EdgeLevel) + { + Temp8 |= 0x2; + } + + /* + * Set the Interrupt Polarity + */ + Temp8 |= ((LinkedList->Data.ExtendedIrq.ActiveHighLow & 0x1) << 2); + + *Buffer = Temp8; + Buffer += 1; + + /* + * Set the Interrupt table length + */ + Temp8 = (UINT8) LinkedList->Data.ExtendedIrq.NumberOfInterrupts; + + *Buffer = Temp8; + Buffer += 1; + + for (Index = 0; Index < LinkedList->Data.ExtendedIrq.NumberOfInterrupts; + Index++) + { + ACPI_MOVE_UNALIGNED32_TO_32 (Buffer, + &LinkedList->Data.ExtendedIrq.Interrupts[Index]); + Buffer += 4; + } + + /* + * Resource Source Index and Resource Source are optional + */ + if (0 != LinkedList->Data.ExtendedIrq.ResourceSource.StringLength) + { + *Buffer = (UINT8) LinkedList->Data.ExtendedIrq.ResourceSource.Index; + Buffer += 1; + + TempPointer = (NATIVE_CHAR *) Buffer; + + /* + * Copy the string + */ + ACPI_STRCPY (TempPointer, + LinkedList->Data.ExtendedIrq.ResourceSource.StringPtr); + + /* + * Buffer needs to be set to the length of the sting + one for the + * terminating null + */ + Buffer += (ACPI_STRLEN (LinkedList->Data.ExtendedIrq.ResourceSource.StringPtr) + 1); + } + + /* + * Return the number of bytes consumed in this operation + */ + *BytesConsumed = ACPI_PTR_DIFF (Buffer, *OutputBuffer); + + /* + * Set the length field to the number of bytes consumed + * minus the header size (3 bytes) + */ + *LengthField = (UINT16) (*BytesConsumed - 3); + return_ACPI_STATUS (AE_OK); +} + |
