/******************************************************************************* * * Module Name: rsmisc - Miscellaneous resource descriptors * ******************************************************************************/ /* * Copyright (C) 2000 - 2012, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. */ #define __RSMISC_C__ #include #include #include #define _COMPONENT ACPI_RESOURCES ACPI_MODULE_NAME ("rsmisc") #define INIT_RESOURCE_TYPE(i) i->ResourceOffset #define INIT_RESOURCE_LENGTH(i) i->AmlOffset #define INIT_TABLE_LENGTH(i) i->Value #define COMPARE_OPCODE(i) i->ResourceOffset #define COMPARE_TARGET(i) i->AmlOffset #define COMPARE_VALUE(i) i->Value /******************************************************************************* * * FUNCTION: AcpiRsConvertAmlToResource * * PARAMETERS: Resource - Pointer to the resource descriptor * Aml - Where the AML descriptor is returned * Info - Pointer to appropriate conversion table * * RETURN: Status * * DESCRIPTION: Convert an external AML resource descriptor to the corresponding * internal resource descriptor * ******************************************************************************/ ACPI_STATUS AcpiRsConvertAmlToResource ( ACPI_RESOURCE *Resource, AML_RESOURCE *Aml, ACPI_RSCONVERT_INFO *Info) { ACPI_RS_LENGTH AmlResourceLength; void *Source; void *Destination; char *Target; UINT8 Count; UINT8 FlagsMode = FALSE; UINT16 ItemCount = 0; UINT16 Temp16 = 0; ACPI_FUNCTION_TRACE (RsConvertAmlToResource); if (!Info) { return_ACPI_STATUS (AE_BAD_PARAMETER); } if (((ACPI_SIZE) Resource) & 0x3) { /* Each internal resource struct is expected to be 32-bit aligned */ ACPI_WARNING ((AE_INFO, "Misaligned resource pointer (get): %p Type 0x%2.2X Length %u", Resource, Resource->Type, Resource->Length)); } /* Extract the resource Length field (does not include header length) */ AmlResourceLength = AcpiUtGetResourceLength (Aml); /* * First table entry must be ACPI_RSC_INITxxx and must contain the * table length (# of table entries) */ Count = INIT_TABLE_LENGTH (Info); while (Count) { /* * Source is the external AML byte stream buffer, * destination is the internal resource descriptor */ Source = ACPI_ADD_PTR (void, Aml, Info->AmlOffset); Destination = ACPI_ADD_PTR (void, Resource, Info->ResourceOffset); switch (Info->Opcode) { case ACPI_RSC_INITGET: /* * Get the resource type and the initial (minimum) length */ ACPI_MEMSET (Resource, 0, INIT_RESOURCE_LENGTH (Info)); Resource->Type = INIT_RESOURCE_TYPE (Info); Resource->Length = INIT_RESOURCE_LENGTH (Info); break; case ACPI_RSC_INITSET: break; case ACPI_RSC_FLAGINIT: FlagsMode = TRUE; break; case ACPI_RSC_1BITFLAG: /* * Mask and shift the flag bit */ ACPI_SET8 (Destination, ((ACPI_GET8 (Source) >> Info->Value) & 0x01)); break; case ACPI_RSC_2BITFLAG: /* * Mask and shift the flag bits */ ACPI_SET8 (Destination, ((ACPI_GET8 (Source) >> Info->Value) & 0x03)); break; case ACPI_RSC_3BITFLAG: /* * Mask and shift the flag bits */ ACPI_SET8 (Destination, ((ACPI_GET8 (Source) >> Info->Value) & 0x07)); break; case ACPI_RSC_COUNT: ItemCount = ACPI_GET8 (Source); ACPI_SET8 (Destination, ItemCount); Resource->Length = Resource->Length + (Info->Value * (ItemCount - 1)); break; case ACPI_RSC_COUNT16: ItemCount = AmlResourceLength; ACPI_SET16 (Destination, ItemCount); Resource->Length = Resource->Length + (Info->Value * (ItemCount - 1)); break; case ACPI_RSC_COUNT_GPIO_PIN: Target = ACPI_ADD_PTR (void, Aml, Info->Value); ItemCount = ACPI_GET16 (Target) - ACPI_GET16 (Source); Resource->Length = Resource->Length + ItemCount; ItemCount = ItemCount / 2; ACPI_SET16 (Destination, ItemCount); break; case ACPI_RSC_COUNT_GPIO_VEN: ItemCount = ACPI_GET8 (Source); ACPI_SET8 (Destination, ItemCount); Resource->Length = Resource->Length + (Info->Value * ItemCount); break; case ACPI_RSC_COUNT_GPIO_RES: /* * Vendor data is optional (length/offset may both be zero) * Examine vendor data length field first */ Target = ACPI_ADD_PTR (void, Aml, (Info->Value + 2)); if (ACPI_GET16 (Target)) { /* Use vendor offset to get resource source length */ Target = ACPI_ADD_PTR (void, Aml, Info->Value); ItemCount = ACPI_GET16 (Target) - ACPI_GET16 (Source); } else { /* No vendor data to worry about */ ItemCount = Aml->LargeHeader.ResourceLength + sizeof (AML_RESOURCE_LARGE_HEADER) - ACPI_GET16 (Source); } Resource->Length = Resource->Length + ItemCount; ACPI_SET16 (Destination, ItemCount); break; case ACPI_RSC_COUNT_SERIAL_VEN: ItemCount = ACPI_GET16 (Source) - Info->Value; Resource->Length = Resource->Length + ItemCount; ACPI_SET16 (Destination, ItemCount); break; case ACPI_RSC_COUNT_SERIAL_RES: ItemCount = (AmlResourceLength + sizeof (AML_RESOURCE_LARGE_HEADER)) - ACPI_GET16 (Source) - Info->Value; Resource->Length = Resource->Length + ItemCount; ACPI_SET16 (Destination, ItemCount); break; case ACPI_RSC_LENGTH: Resource->Length = Resource->Length + Info->Value; break; case ACPI_RSC_MOVE8: case ACPI_RSC_MOVE16: case ACPI_RSC_MOVE32: case ACPI_RSC_MOVE64: /* * Raw data move. Use the Info value field unless ItemCount has * been previously initialized via a COUNT opcode */ if (Info->Value) { ItemCount = Info->Value; } AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_MOVE_GPIO_PIN: /* Generate and set the PIN data pointer */ Target = (char *) ACPI_ADD_PTR (void, Resource, (Resource->Length - ItemCount * 2)); *(UINT16 **) Destination = ACPI_CAST_PTR (UINT16, Target); /* Copy the PIN data */ Source = ACPI_ADD_PTR (void, Aml, ACPI_GET16 (Source)); AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_MOVE_GPIO_RES: /* Generate and set the ResourceSource string pointer */ Target = (char *) ACPI_ADD_PTR (void, Resource, (Resource->Length - ItemCount)); *(UINT8 **) Destination = ACPI_CAST_PTR (UINT8, Target); /* Copy the ResourceSource string */ Source = ACPI_ADD_PTR (void, Aml, ACPI_GET16 (Source)); AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_MOVE_SERIAL_VEN: /* Generate and set the Vendor Data pointer */ Target = (char *) ACPI_ADD_PTR (void, Resource, (Resource->Length - ItemCount)); *(UINT8 **) Destination = ACPI_CAST_PTR (UINT8, Target); /* Copy the Vendor Data */ Source = ACPI_ADD_PTR (void, Aml, Info->Value); AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_MOVE_SERIAL_RES: /* Generate and set the ResourceSource string pointer */ Target = (char *) ACPI_ADD_PTR (void, Resource, (Resource->Length - ItemCount)); *(UINT8 **) Destination = ACPI_CAST_PTR (UINT8, Target); /* Copy the ResourceSource string */ Source = ACPI_ADD_PTR (void, Aml, (ACPI_GET16 (Source) + Info->Value)); AcpiRsMoveData (Target, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_SET8: ACPI_MEMSET (Destination, Info->AmlOffset, Info->Value); break; case ACPI_RSC_DATA8: Target = ACPI_ADD_PTR (char, Resource, Info->Value); ACPI_MEMCPY (Destination, Source, ACPI_GET16 (Target)); break; case ACPI_RSC_ADDRESS: /* * Common handler for address descriptor flags */ if (!AcpiRsGetAddressCommon (Resource, Aml)) { return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); } break; case ACPI_RSC_SOURCE: /* * Optional ResourceSource (Index and String) */ Resource->Length += AcpiRsGetResourceSource (AmlResourceLength, Info->Value, Destination, Aml, NULL); break; case ACPI_RSC_SOURCEX: /* * Optional ResourceSource (Index and String). This is the more * complicated case used by the Interrupt() macro */ Target = ACPI_ADD_PTR (char, Resource, Info->AmlOffset + (ItemCount * 4)); Resource->Length += AcpiRsGetResourceSource (AmlResourceLength, (ACPI_RS_LENGTH) (((ItemCount - 1) * sizeof (UINT32)) + Info->Value), Destination, Aml, Target); break; case ACPI_RSC_BITMASK: /* * 8-bit encoded bitmask (DMA macro) */ ItemCount = AcpiRsDecodeBitmask (ACPI_GET8 (Source), Destination); if (ItemCount) { Resource->Length += (ItemCount - 1); } Target = ACPI_ADD_PTR (char, Resource, Info->Value); ACPI_SET8 (Target, ItemCount); break; case ACPI_RSC_BITMASK16: /* * 16-bit encoded bitmask (IRQ macro) */ ACPI_MOVE_16_TO_16 (&Temp16, Source); ItemCount = AcpiRsDecodeBitmask (Temp16, Destination); if (ItemCount) { Resource->Length += (ItemCount - 1); } Target = ACPI_ADD_PTR (char, Resource, Info->Value); ACPI_SET8 (Target, ItemCount); break; case ACPI_RSC_EXIT_NE: /* * Control - Exit conversion if not equal */ switch (Info->ResourceOffset) { case ACPI_RSC_COMPARE_AML_LENGTH: if (AmlResourceLength != Info->Value) { goto Exit; } break; case ACPI_RSC_COMPARE_VALUE: if (ACPI_GET8 (Source) != Info->Value) { goto Exit; } break; default: ACPI_ERROR ((AE_INFO, "Invalid conversion sub-opcode")); return_ACPI_STATUS (AE_BAD_PARAMETER); } break; default: ACPI_ERROR ((AE_INFO, "Invalid conversion opcode")); return_ACPI_STATUS (AE_BAD_PARAMETER); } Count--; Info++; } Exit: if (!FlagsMode) { /* Round the resource struct length up to the next boundary (32 or 64) */ Resource->Length = (UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (Resource->Length); } return_ACPI_STATUS (AE_OK); } /******************************************************************************* * * FUNCTION: AcpiRsConvertResourceToAml * * PARAMETERS: Resource - Pointer to the resource descriptor * Aml - Where the AML descriptor is returned * Info - Pointer to appropriate conversion table * * RETURN: Status * * DESCRIPTION: Convert an internal resource descriptor to the corresponding * external AML resource descriptor. * ******************************************************************************/ ACPI_STATUS AcpiRsConvertResourceToAml ( ACPI_RESOURCE *Resource, AML_RESOURCE *Aml, ACPI_RSCONVERT_INFO *Info) { void *Source = NULL; void *Destination; char *Target; ACPI_RSDESC_SIZE AmlLength = 0; UINT8 Count; UINT16 Temp16 = 0; UINT16 ItemCount = 0; ACPI_FUNCTION_TRACE (RsConvertResourceToAml); if (!Info) { return_ACPI_STATUS (AE_BAD_PARAMETER); } /* * First table entry must be ACPI_RSC_INITxxx and must contain the * table length (# of table entries) */ Count = INIT_TABLE_LENGTH (Info); while (Count) { /* * Source is the internal resource descriptor, * destination is the external AML byte stream buffer */ Source = ACPI_ADD_PTR (void, Resource, Info->ResourceOffset); Destination = ACPI_ADD_PTR (void, Aml, Info->AmlOffset); switch (Info->Opcode) { case ACPI_RSC_INITSET: ACPI_MEMSET (Aml, 0, INIT_RESOURCE_LENGTH (Info)); AmlLength = INIT_RESOURCE_LENGTH (Info); AcpiRsSetResourceHeader (INIT_RESOURCE_TYPE (Info), AmlLength, Aml); break; case ACPI_RSC_INITGET: break; case ACPI_RSC_FLAGINIT: /* * Clear the flag byte */ ACPI_SET8 (Destination, 0); break; case ACPI_RSC_1BITFLAG: /* * Mask and shift the flag bit */ ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8) ((ACPI_GET8 (Source) & 0x01) << Info->Value)); break; case ACPI_RSC_2BITFLAG: /* * Mask and shift the flag bits */ ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8) ((ACPI_GET8 (Source) & 0x03) << Info->Value)); break; case ACPI_RSC_3BITFLAG: /* * Mask and shift the flag bits */ ACPI_SET_BIT (*ACPI_CAST8 (Destination), (UINT8) ((ACPI_GET8 (Source) & 0x07) << Info->Value)); break; case ACPI_RSC_COUNT: ItemCount = ACPI_GET8 (Source); ACPI_SET8 (Destination, ItemCount); AmlLength = (UINT16) (AmlLength + (Info->Value * (ItemCount - 1))); break; case ACPI_RSC_COUNT16: ItemCount = ACPI_GET16 (Source); AmlLength = (UINT16) (AmlLength + ItemCount); AcpiRsSetResourceLength (AmlLength, Aml); break; case ACPI_RSC_COUNT_GPIO_PIN: ItemCount = ACPI_GET16 (Source); ACPI_SET16 (Destination, AmlLength); AmlLength = (UINT16) (AmlLength + ItemCount * 2); Target = ACPI_ADD_PTR (void, Aml, Info->Value); ACPI_SET16 (Target, AmlLength); AcpiRsSetResourceLength (AmlLength, Aml); break; case ACPI_RSC_COUNT_GPIO_VEN: ItemCount = ACPI_GET16 (Source); ACPI_SET16 (Destination, ItemCount); AmlLength = (UINT16) (AmlLength + (Info->Value * ItemCount)); AcpiRsSetResourceLength (AmlLength, Aml); break; case ACPI_RSC_COUNT_GPIO_RES: /* Set resource source string length */ ItemCount = ACPI_GET16 (Source); ACPI_SET16 (Destination, AmlLength); /* Compute offset for the Vendor Data */ AmlLength = (UINT16) (AmlLength + ItemCount); Target = ACPI_ADD_PTR (void, Aml, Info->Value); /* Set vendor offset only if there is vendor data */ if (Resource->Data.Gpio.VendorLength) { ACPI_SET16 (Target, AmlLength); } AcpiRsSetResourceLength (AmlLength, Aml); break; case ACPI_RSC_COUNT_SERIAL_VEN: ItemCount = ACPI_GET16 (Source); ACPI_SET16 (Destination, ItemCount + Info->Value); AmlLength = (UINT16) (AmlLength + ItemCount); AcpiRsSetResourceLength (AmlLength, Aml); break; case ACPI_RSC_COUNT_SERIAL_RES: ItemCount = ACPI_GET16 (Source); AmlLength = (UINT16) (AmlLength + ItemCount); AcpiRsSetResourceLength (AmlLength, Aml); break; case ACPI_RSC_LENGTH: AcpiRsSetResourceLength (Info->Value, Aml); break; case ACPI_RSC_MOVE8: case ACPI_RSC_MOVE16: case ACPI_RSC_MOVE32: case ACPI_RSC_MOVE64: if (Info->Value) { ItemCount = Info->Value; } AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_MOVE_GPIO_PIN: Destination = (char *) ACPI_ADD_PTR (void, Aml, ACPI_GET16 (Destination)); Source = * (UINT16 **) Source; AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_MOVE_GPIO_RES: /* Used for both ResourceSource string and VendorData */ Destination = (char *) ACPI_ADD_PTR (void, Aml, ACPI_GET16 (Destination)); Source = * (UINT8 **) Source; AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_MOVE_SERIAL_VEN: Destination = (char *) ACPI_ADD_PTR (void, Aml, (AmlLength - ItemCount)); Source = * (UINT8 **) Source; AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_MOVE_SERIAL_RES: Destination = (char *) ACPI_ADD_PTR (void, Aml, (AmlLength - ItemCount)); Source = * (UINT8 **) Source; AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); break; case ACPI_RSC_ADDRESS: /* Set the Resource Type, General Flags, and Type-Specific Flags */ AcpiRsSetAddressCommon (Aml, Resource); break; case ACPI_RSC_SOURCEX: /* * Optional ResourceSource (Index and String) */ AmlLength = AcpiRsSetResourceSource ( Aml, (ACPI_RS_LENGTH) AmlLength, Source); AcpiRsSetResourceLength (AmlLength, Aml); break; case ACPI_RSC_SOURCE: /* * Optional ResourceSource (Index and String). This is the more * complicated case used by the Interrupt() macro */ AmlLength = AcpiRsSetResourceSource (Aml, Info->Value, Source); AcpiRsSetResourceLength (AmlLength, Aml); break; case ACPI_RSC_BITMASK: /* * 8-bit encoded bitmask (DMA macro) */ ACPI_SET8 (Destination, AcpiRsEncodeBitmask (Source, *ACPI_ADD_PTR (UINT8, Resource, Info->Value))); break; case ACPI_RSC_BITMASK16: /* * 16-bit encoded bitmask (IRQ macro) */ Temp16 = AcpiRsEncodeBitmask (Source, *ACPI_ADD_PTR (UINT8, Resource, Info->Value)); ACPI_MOVE_16_TO_16 (Destination, &Temp16); break; case ACPI_RSC_EXIT_LE: /* * Control - Exit conversion if less than or equal */ if (ItemCount <= Info->Value) { goto Exit; } break; case ACPI_RSC_EXIT_NE: /* * Control - Exit conversion if not equal */ switch (COMPARE_OPCODE (Info)) { case ACPI_RSC_COMPARE_VALUE: if (*ACPI_ADD_PTR (UINT8, Resource, COMPARE_TARGET (Info)) != COMPARE_VALUE (Info)) { goto Exit; } break; default: ACPI_ERROR ((AE_INFO, "Invalid conversion sub-opcode")); return_ACPI_STATUS (AE_BAD_PARAMETER); } break; case ACPI_RSC_EXIT_EQ: /* * Control - Exit conversion if equal */ if (*ACPI_ADD_PTR (UINT8, Resource, COMPARE_TARGET (Info)) == COMPARE_VALUE (Info)) { goto Exit; } break; default: ACPI_ERROR ((AE_INFO, "Invalid conversion opcode")); return_ACPI_STATUS (AE_BAD_PARAMETER); } Count--; Info++; } Exit: return_ACPI_STATUS (AE_OK); } #if 0 /* Previous resource validations */ if (Aml->ExtAddress64.RevisionID != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) { return_ACPI_STATUS (AE_SUPPORT); } if (Resource->Data.StartDpf.PerformanceRobustness >= 3) { return_ACPI_STATUS (AE_AML_BAD_RESOURCE_VALUE); } if (((Aml->Irq.Flags & 0x09) == 0x00) || ((Aml->Irq.Flags & 0x09) == 0x09)) { /* * Only [ActiveHigh, EdgeSensitive] or [ActiveLow, LevelSensitive] * polarity/trigger interrupts are allowed (ACPI spec, section * "IRQ Format"), so 0x00 and 0x09 are illegal. */ ACPI_ERROR ((AE_INFO, "Invalid interrupt polarity/trigger in resource list, 0x%X", Aml->Irq.Flags)); return_ACPI_STATUS (AE_BAD_DATA); } Resource->Data.ExtendedIrq.InterruptCount = Temp8; if (Temp8 < 1) { /* Must have at least one IRQ */ return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH); } if (Resource->Data.Dma.Transfer == 0x03) { ACPI_ERROR ((AE_INFO, "Invalid DMA.Transfer preference (3)")); return_ACPI_STATUS (AE_BAD_DATA); } #endif