diff options
Diffstat (limited to 'sys/contrib/dev/acpica/exfldio.c')
| -rw-r--r-- | sys/contrib/dev/acpica/exfldio.c | 137 |
1 files changed, 77 insertions, 60 deletions
diff --git a/sys/contrib/dev/acpica/exfldio.c b/sys/contrib/dev/acpica/exfldio.c index 7e60ea8..1bd79e7 100644 --- a/sys/contrib/dev/acpica/exfldio.c +++ b/sys/contrib/dev/acpica/exfldio.c @@ -1,7 +1,7 @@ /****************************************************************************** * * Module Name: exfldio - Aml Field I/O - * $Revision: 75 $ + * $Revision: 82 $ * *****************************************************************************/ @@ -9,7 +9,7 @@ * * 1. Copyright Notice * - * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp. + * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp. * All rights reserved. * * 2. License @@ -127,7 +127,7 @@ #define _COMPONENT ACPI_EXECUTER - MODULE_NAME ("exfldio") + ACPI_MODULE_NAME ("exfldio") /******************************************************************************* @@ -154,7 +154,7 @@ AcpiExSetupRegion ( ACPI_OPERAND_OBJECT *RgnDesc; - FUNCTION_TRACE_U32 ("ExSetupRegion", FieldDatumByteOffset); + ACPI_FUNCTION_TRACE_U32 ("ExSetupRegion", FieldDatumByteOffset); RgnDesc = ObjDesc->CommonField.RegionObj; @@ -196,8 +196,9 @@ AcpiExSetupRegion ( * byte, and a field with Dword access specified. */ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Field access width (%d bytes) too large for region size (%X)\n", - ObjDesc->CommonField.AccessByteWidth, RgnDesc->Region.Length)); + "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)\n", + (char *) &ObjDesc->CommonField.Node->Name, ObjDesc->CommonField.AccessByteWidth, + (char *) &RgnDesc->Region.Node->Name, RgnDesc->Region.Length)); } /* @@ -205,10 +206,10 @@ AcpiExSetupRegion ( * exceeds region length, indicate an error */ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Field Base+Offset+Width %X+%X+%X exceeds region size (%X bytes) field=%p region=%p\n", - ObjDesc->CommonField.BaseByteOffset, FieldDatumByteOffset, - ObjDesc->CommonField.AccessByteWidth, - RgnDesc->Region.Length, ObjDesc, RgnDesc)); + "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)\n", + (char *) &ObjDesc->CommonField.Node->Name, ObjDesc->CommonField.BaseByteOffset, + FieldDatumByteOffset, ObjDesc->CommonField.AccessByteWidth, + (char *) &RgnDesc->Region.Node->Name, RgnDesc->Region.Length)); return_ACPI_STATUS (AE_AML_REGION_LIMIT); } @@ -245,7 +246,7 @@ AcpiExAccessRegion ( ACPI_PHYSICAL_ADDRESS Address; - FUNCTION_TRACE ("AcpiExAccessRegion"); + ACPI_FUNCTION_TRACE ("AcpiExAccessRegion"); /* @@ -270,18 +271,18 @@ AcpiExAccessRegion ( } ACPI_DEBUG_PRINT_RAW ((ACPI_DB_BFIELD, - " Region[%s-%X] Width %X Base:Off %X:%X at %8.8X%8.8X\n", + " Region[%s-%X] Access %X Base:Off %X:%X at %8.8X%8.8X\n", AcpiUtGetRegionName (RgnDesc->Region.SpaceId), RgnDesc->Region.SpaceId, - ObjDesc->CommonField.AccessBitWidth, + ObjDesc->CommonField.AccessByteWidth, ObjDesc->CommonField.BaseByteOffset, FieldDatumByteOffset, - HIDWORD (Address), LODWORD (Address))); + ACPI_HIDWORD (Address), ACPI_LODWORD (Address))); /* Invoke the appropriate AddressSpace/OpRegion handler */ Status = AcpiEvAddressSpaceDispatch (RgnDesc, ReadWrite, - Address, ObjDesc->CommonField.AccessBitWidth, Value); + Address, ACPI_MUL_8 (ObjDesc->CommonField.AccessByteWidth), Value); if (ACPI_FAILURE (Status)) { @@ -329,15 +330,26 @@ AcpiExRegisterOverflow ( ACPI_INTEGER Value) { - /* - * Is the Value larger than the maximum value that can fit into - * the field? - */ + if (ObjDesc->CommonField.BitLength >= ACPI_INTEGER_BIT_SIZE) + { + /* + * The field is large enough to hold the maximum integer, so we can + * never overflow it. + */ + return (FALSE); + } + if (Value >= (ACPI_INTEGER) (1 << ObjDesc->CommonField.BitLength)) { + /* + * The Value is larger than the maximum value that can fit into + * the register. + */ return (TRUE); } + /* The Value will fit into the field with no truncation */ + return (FALSE); } @@ -371,7 +383,7 @@ AcpiExFieldDatumIo ( ACPI_INTEGER LocalValue; - FUNCTION_TRACE_U32 ("ExFieldDatumIo", FieldDatumByteOffset); + ACPI_FUNCTION_TRACE_U32 ("ExFieldDatumIo", FieldDatumByteOffset); if (ReadWrite == ACPI_READ) @@ -417,7 +429,7 @@ AcpiExFieldDatumIo ( * Copy the data from the source buffer. * Length is the field width in bytes. */ - MEMCPY (Value, (ObjDesc->BufferField.BufferObj)->Buffer.Pointer + ACPI_MEMCPY (Value, (ObjDesc->BufferField.BufferObj)->Buffer.Pointer + ObjDesc->BufferField.BaseByteOffset + FieldDatumByteOffset, ObjDesc->CommonField.AccessByteWidth); @@ -428,7 +440,7 @@ AcpiExFieldDatumIo ( * Copy the data to the target buffer. * Length is the field width in bytes. */ - MEMCPY ((ObjDesc->BufferField.BufferObj)->Buffer.Pointer + ACPI_MEMCPY ((ObjDesc->BufferField.BufferObj)->Buffer.Pointer + ObjDesc->BufferField.BaseByteOffset + FieldDatumByteOffset, Value, ObjDesc->CommonField.AccessByteWidth); @@ -535,12 +547,12 @@ AcpiExFieldDatumIo ( if (ReadWrite == ACPI_READ) { ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "Value Read=%8.8X%8.8X\n", - HIDWORD(*Value), LODWORD(*Value))); + ACPI_HIDWORD (*Value), ACPI_LODWORD (*Value))); } else { ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "Value Written=%8.8X%8.8X\n", - HIDWORD(*Value), LODWORD(*Value))); + ACPI_HIDWORD (*Value), ACPI_LODWORD (*Value))); } } @@ -573,7 +585,7 @@ AcpiExWriteWithUpdateRule ( ACPI_INTEGER CurrentValue; - FUNCTION_TRACE_U32 ("ExWriteWithUpdateRule", Mask); + ACPI_FUNCTION_TRACE_U32 ("ExWriteWithUpdateRule", Mask); /* Start with the new bits */ @@ -593,8 +605,8 @@ AcpiExWriteWithUpdateRule ( * Check if update rule needs to be applied (not if mask is all * ones) The left shift drops the bits we want to ignore. */ - if ((~Mask << (sizeof (Mask) * 8 - - ObjDesc->CommonField.AccessBitWidth)) != 0) + if ((~Mask << (ACPI_MUL_8 (sizeof (Mask)) - + ACPI_MUL_8 (ObjDesc->CommonField.AccessByteWidth))) != 0) { /* * Read the current contents of the byte/word/dword containing @@ -625,7 +637,6 @@ AcpiExWriteWithUpdateRule ( "WriteWithUpdateRule: Unknown UpdateRule setting: %x\n", (ObjDesc->CommonField.FieldFlags & AML_FIELD_UPDATE_RULE_MASK))); return_ACPI_STATUS (AE_AML_OPERAND_VALUE); - break; } } @@ -636,10 +647,10 @@ AcpiExWriteWithUpdateRule ( ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "Mask %8.8X%8.8X DatumOffset %X Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n", - HIDWORD(Mask), LODWORD(Mask), + ACPI_HIDWORD (Mask), ACPI_LODWORD (Mask), FieldDatumByteOffset, - HIDWORD(FieldValue), LODWORD(FieldValue), - HIDWORD(MergedValue),LODWORD(MergedValue))); + ACPI_HIDWORD (FieldValue), ACPI_LODWORD (FieldValue), + ACPI_HIDWORD (MergedValue),ACPI_LODWORD (MergedValue))); return_ACPI_STATUS (Status); } @@ -670,25 +681,29 @@ AcpiExGetBufferDatum( UINT32 Offset) { - FUNCTION_ENTRY (); + ACPI_FUNCTION_ENTRY (); switch (ByteGranularity) { case ACPI_FIELD_BYTE_GRANULARITY: + *Datum = ((UINT8 *) Buffer) [Offset]; break; case ACPI_FIELD_WORD_GRANULARITY: - MOVE_UNALIGNED16_TO_32 (Datum, &(((UINT16 *) Buffer) [Offset])); + + ACPI_MOVE_UNALIGNED16_TO_32 (Datum, &(((UINT16 *) Buffer) [Offset])); break; case ACPI_FIELD_DWORD_GRANULARITY: - MOVE_UNALIGNED32_TO_32 (Datum, &(((UINT32 *) Buffer) [Offset])); + + ACPI_MOVE_UNALIGNED32_TO_32 (Datum, &(((UINT32 *) Buffer) [Offset])); break; case ACPI_FIELD_QWORD_GRANULARITY: - MOVE_UNALIGNED64_TO_64 (Datum, &(((UINT64 *) Buffer) [Offset])); + + ACPI_MOVE_UNALIGNED64_TO_64 (Datum, &(((UINT64 *) Buffer) [Offset])); break; } } @@ -719,25 +734,29 @@ AcpiExSetBufferDatum ( UINT32 Offset) { - FUNCTION_ENTRY (); + ACPI_FUNCTION_ENTRY (); switch (ByteGranularity) { case ACPI_FIELD_BYTE_GRANULARITY: + ((UINT8 *) Buffer) [Offset] = (UINT8) MergedDatum; break; case ACPI_FIELD_WORD_GRANULARITY: - MOVE_UNALIGNED16_TO_16 (&(((UINT16 *) Buffer)[Offset]), &MergedDatum); + + ACPI_MOVE_UNALIGNED16_TO_16 (&(((UINT16 *) Buffer)[Offset]), &MergedDatum); break; case ACPI_FIELD_DWORD_GRANULARITY: - MOVE_UNALIGNED32_TO_32 (&(((UINT32 *) Buffer)[Offset]), &MergedDatum); + + ACPI_MOVE_UNALIGNED32_TO_32 (&(((UINT32 *) Buffer)[Offset]), &MergedDatum); break; case ACPI_FIELD_QWORD_GRANULARITY: - MOVE_UNALIGNED64_TO_64 (&(((UINT64 *) Buffer)[Offset]), &MergedDatum); + + ACPI_MOVE_UNALIGNED64_TO_64 (&(((UINT64 *) Buffer)[Offset]), &MergedDatum); break; } } @@ -772,16 +791,16 @@ AcpiExExtractFromField ( UINT32 DatumCount; - FUNCTION_TRACE ("ExExtractFromField"); + ACPI_FUNCTION_TRACE ("ExExtractFromField"); /* * The field must fit within the caller's buffer */ - ByteFieldLength = ROUND_BITS_UP_TO_BYTES (ObjDesc->CommonField.BitLength); + ByteFieldLength = ACPI_ROUND_BITS_UP_TO_BYTES (ObjDesc->CommonField.BitLength); if (ByteFieldLength > BufferLength) { - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Field size %X (bytes) too large for buffer (%X)\n", ByteFieldLength, BufferLength)); @@ -790,20 +809,19 @@ AcpiExExtractFromField ( /* Convert field byte count to datum count, round up if necessary */ - DatumCount = ROUND_UP_TO (ByteFieldLength, + DatumCount = ACPI_ROUND_UP_TO (ByteFieldLength, ObjDesc->CommonField.AccessByteWidth); ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "ByteLen=%x, DatumLen=%x, BitGran=%x, ByteGran=%x\n", - ByteFieldLength, DatumCount, ObjDesc->CommonField.AccessBitWidth, - ObjDesc->CommonField.AccessByteWidth)); + "ByteLen=%x, DatumLen=%x, ByteGran=%x\n", + ByteFieldLength, DatumCount,ObjDesc->CommonField.AccessByteWidth)); /* * Clear the caller's buffer (the whole buffer length as given) * This is very important, especially in the cases where a byte is read, * but the buffer is really a UINT32 (4 bytes). */ - MEMSET (Buffer, 0, BufferLength); + ACPI_MEMSET (Buffer, 0, BufferLength); /* Read the first raw datum to prime the loop */ @@ -831,7 +849,7 @@ AcpiExExtractFromField ( if (ObjDesc->CommonField.EndBufferValidBits) { - MergedDatum &= MASK_BITS_ABOVE (ObjDesc->CommonField.EndBufferValidBits); + MergedDatum &= ACPI_MASK_BITS_ABOVE (ObjDesc->CommonField.EndBufferValidBits); } /* Store the datum to the caller buffer */ @@ -854,7 +872,7 @@ AcpiExExtractFromField ( * to perform a final read, since this would potentially read * past the end of the region. * - * We could just split the aligned and non-aligned cases since the + * We could just split the aligned and non-aligned cases since the * aligned case is so very simple, but this would require more code. */ if ((ObjDesc->CommonField.StartFieldBitOffset != 0) || @@ -907,7 +925,7 @@ AcpiExExtractFromField ( if (ObjDesc->CommonField.EndBufferValidBits) { MergedDatum &= - MASK_BITS_ABOVE (ObjDesc->CommonField.EndBufferValidBits); + ACPI_MASK_BITS_ABOVE (ObjDesc->CommonField.EndBufferValidBits); } } } @@ -916,7 +934,7 @@ AcpiExExtractFromField ( * Store the merged field datum in the caller's buffer, according to * the granularity of the field (size of each datum). */ - AcpiExSetBufferDatum (MergedDatum, Buffer, + AcpiExSetBufferDatum (MergedDatum, Buffer, ObjDesc->CommonField.AccessByteWidth, DatumOffset); /* @@ -961,7 +979,7 @@ AcpiExInsertIntoField ( UINT32 DatumCount; - FUNCTION_TRACE ("ExInsertIntoField"); + ACPI_FUNCTION_TRACE ("ExInsertIntoField"); /* @@ -970,7 +988,7 @@ AcpiExInsertIntoField ( * larger than the field, this typically happens when an integer is * written to a field that is actually smaller than an integer. */ - ByteFieldLength = ROUND_BITS_UP_TO_BYTES (ObjDesc->CommonField.BitLength); + ByteFieldLength = ACPI_ROUND_BITS_UP_TO_BYTES (ObjDesc->CommonField.BitLength); if (BufferLength < ByteFieldLength) { ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Buffer length %X too small for field %X\n", @@ -981,12 +999,11 @@ AcpiExInsertIntoField ( /* Convert byte count to datum count, round up if necessary */ - DatumCount = ROUND_UP_TO (ByteFieldLength, ObjDesc->CommonField.AccessByteWidth); + DatumCount = ACPI_ROUND_UP_TO (ByteFieldLength, ObjDesc->CommonField.AccessByteWidth); ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "ByteLen=%x, DatumLen=%x, BitGran=%x, ByteGran=%x\n", - ByteFieldLength, DatumCount, ObjDesc->CommonField.AccessBitWidth, - ObjDesc->CommonField.AccessByteWidth)); + "ByteLen=%x, DatumLen=%x, ByteGran=%x\n", + ByteFieldLength, DatumCount, ObjDesc->CommonField.AccessByteWidth)); /* * Break the request into up to three parts (similar to an I/O request): @@ -1012,7 +1029,7 @@ AcpiExInsertIntoField ( * * Mask off bits that are "below" the field (if any) */ - Mask = MASK_BITS_BELOW (ObjDesc->CommonField.StartFieldBitOffset); + Mask = ACPI_MASK_BITS_BELOW (ObjDesc->CommonField.StartFieldBitOffset); /* If the field fits in one datum, may need to mask upper bits */ @@ -1021,7 +1038,7 @@ AcpiExInsertIntoField ( { /* There are bits above the field, mask them off also */ - Mask &= MASK_BITS_ABOVE (ObjDesc->CommonField.EndFieldValidBits); + Mask &= ACPI_MASK_BITS_ABOVE (ObjDesc->CommonField.EndFieldValidBits); } /* Shift and mask the value into the field position */ @@ -1108,7 +1125,7 @@ AcpiExInsertIntoField ( * * Mask off the unused bits above (after) the end-of-field */ - Mask = MASK_BITS_ABOVE (ObjDesc->CommonField.EndFieldValidBits); + Mask = ACPI_MASK_BITS_ABOVE (ObjDesc->CommonField.EndFieldValidBits); MergedDatum &= Mask; /* Write the last datum with the update rule */ |
