549 lines
14 KiB
C
549 lines
14 KiB
C
/*******************************************************************************
|
|
*
|
|
* Module Name: rsmisc - Miscellaneous resource descriptors
|
|
*
|
|
******************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2007, R. Byron Moore
|
|
* 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.
|
|
*/
|
|
|
|
#include <acpi/acpi.h>
|
|
#include <acpi/acresrc.h>
|
|
|
|
#define _COMPONENT ACPI_RESOURCES
|
|
ACPI_MODULE_NAME("rsmisc")
|
|
#define INIT_RESOURCE_TYPE(i) i->resource_offset
|
|
#define INIT_RESOURCE_LENGTH(i) i->aml_offset
|
|
#define INIT_TABLE_LENGTH(i) i->value
|
|
#define COMPARE_OPCODE(i) i->resource_offset
|
|
#define COMPARE_TARGET(i) i->aml_offset
|
|
#define COMPARE_VALUE(i) i->value
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_convert_aml_to_resource
|
|
*
|
|
* 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
|
|
acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
|
|
union aml_resource *aml,
|
|
struct acpi_rsconvert_info *info)
|
|
{
|
|
acpi_rs_length aml_resource_length;
|
|
void *source;
|
|
void *destination;
|
|
char *target;
|
|
u8 count;
|
|
u8 flags_mode = FALSE;
|
|
u16 item_count = 0;
|
|
u16 temp16 = 0;
|
|
|
|
ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
|
|
|
|
if (((acpi_native_uint) resource) & 0x3) {
|
|
|
|
/* Each internal resource struct is expected to be 32-bit aligned */
|
|
|
|
ACPI_WARNING((AE_INFO,
|
|
"Misaligned resource pointer (get): %p Type %2.2X Len %X",
|
|
resource, resource->type, resource->length));
|
|
}
|
|
|
|
/* Extract the resource Length field (does not include header length) */
|
|
|
|
aml_resource_length = acpi_ut_get_resource_length(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->aml_offset);
|
|
destination =
|
|
ACPI_ADD_PTR(void, resource, info->resource_offset);
|
|
|
|
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:
|
|
|
|
flags_mode = TRUE;
|
|
break;
|
|
|
|
case ACPI_RSC_1BITFLAG:
|
|
/*
|
|
* Mask and shift the flag bit
|
|
*/
|
|
ACPI_SET8(destination) = (u8)
|
|
((ACPI_GET8(source) >> info->value) & 0x01);
|
|
break;
|
|
|
|
case ACPI_RSC_2BITFLAG:
|
|
/*
|
|
* Mask and shift the flag bits
|
|
*/
|
|
ACPI_SET8(destination) = (u8)
|
|
((ACPI_GET8(source) >> info->value) & 0x03);
|
|
break;
|
|
|
|
case ACPI_RSC_COUNT:
|
|
|
|
item_count = ACPI_GET8(source);
|
|
ACPI_SET8(destination) = (u8) item_count;
|
|
|
|
resource->length = resource->length +
|
|
(info->value * (item_count - 1));
|
|
break;
|
|
|
|
case ACPI_RSC_COUNT16:
|
|
|
|
item_count = aml_resource_length;
|
|
ACPI_SET16(destination) = item_count;
|
|
|
|
resource->length = resource->length +
|
|
(info->value * (item_count - 1));
|
|
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 item_count has
|
|
* been previously initialized via a COUNT opcode
|
|
*/
|
|
if (info->value) {
|
|
item_count = info->value;
|
|
}
|
|
acpi_rs_move_data(destination, source, item_count,
|
|
info->opcode);
|
|
break;
|
|
|
|
case ACPI_RSC_SET8:
|
|
|
|
ACPI_MEMSET(destination, info->aml_offset, 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 (!acpi_rs_get_address_common(resource, aml)) {
|
|
return_ACPI_STATUS
|
|
(AE_AML_INVALID_RESOURCE_TYPE);
|
|
}
|
|
break;
|
|
|
|
case ACPI_RSC_SOURCE:
|
|
/*
|
|
* Optional resource_source (Index and String)
|
|
*/
|
|
resource->length +=
|
|
acpi_rs_get_resource_source(aml_resource_length,
|
|
info->value,
|
|
destination, aml, NULL);
|
|
break;
|
|
|
|
case ACPI_RSC_SOURCEX:
|
|
/*
|
|
* Optional resource_source (Index and String). This is the more
|
|
* complicated case used by the Interrupt() macro
|
|
*/
|
|
target =
|
|
ACPI_ADD_PTR(char, resource,
|
|
info->aml_offset + (item_count * 4));
|
|
|
|
resource->length +=
|
|
acpi_rs_get_resource_source(aml_resource_length,
|
|
(acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target);
|
|
break;
|
|
|
|
case ACPI_RSC_BITMASK:
|
|
/*
|
|
* 8-bit encoded bitmask (DMA macro)
|
|
*/
|
|
item_count =
|
|
acpi_rs_decode_bitmask(ACPI_GET8(source),
|
|
destination);
|
|
if (item_count) {
|
|
resource->length += (item_count - 1);
|
|
}
|
|
|
|
target = ACPI_ADD_PTR(char, resource, info->value);
|
|
ACPI_SET8(target) = (u8) item_count;
|
|
break;
|
|
|
|
case ACPI_RSC_BITMASK16:
|
|
/*
|
|
* 16-bit encoded bitmask (IRQ macro)
|
|
*/
|
|
ACPI_MOVE_16_TO_16(&temp16, source);
|
|
|
|
item_count =
|
|
acpi_rs_decode_bitmask(temp16, destination);
|
|
if (item_count) {
|
|
resource->length += (item_count - 1);
|
|
}
|
|
|
|
target = ACPI_ADD_PTR(char, resource, info->value);
|
|
ACPI_SET8(target) = (u8) item_count;
|
|
break;
|
|
|
|
case ACPI_RSC_EXIT_NE:
|
|
/*
|
|
* Control - Exit conversion if not equal
|
|
*/
|
|
switch (info->resource_offset) {
|
|
case ACPI_RSC_COMPARE_AML_LENGTH:
|
|
if (aml_resource_length != 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 (!flags_mode) {
|
|
|
|
/* Round the resource struct length up to the next boundary (32 or 64) */
|
|
|
|
resource->length =
|
|
(u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
|
|
}
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_rs_convert_resource_to_aml
|
|
*
|
|
* 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
|
|
acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
|
|
union aml_resource *aml,
|
|
struct acpi_rsconvert_info *info)
|
|
{
|
|
void *source = NULL;
|
|
void *destination;
|
|
acpi_rsdesc_size aml_length = 0;
|
|
u8 count;
|
|
u16 temp16 = 0;
|
|
u16 item_count = 0;
|
|
|
|
ACPI_FUNCTION_TRACE(rs_convert_resource_to_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 internal resource descriptor,
|
|
* destination is the external AML byte stream buffer
|
|
*/
|
|
source = ACPI_ADD_PTR(void, resource, info->resource_offset);
|
|
destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
|
|
|
|
switch (info->opcode) {
|
|
case ACPI_RSC_INITSET:
|
|
|
|
ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
|
|
aml_length = INIT_RESOURCE_LENGTH(info);
|
|
acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
|
|
aml_length, 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_SET8(destination) |= (u8)
|
|
((ACPI_GET8(source) & 0x01) << info->value);
|
|
break;
|
|
|
|
case ACPI_RSC_2BITFLAG:
|
|
/*
|
|
* Mask and shift the flag bits
|
|
*/
|
|
ACPI_SET8(destination) |= (u8)
|
|
((ACPI_GET8(source) & 0x03) << info->value);
|
|
break;
|
|
|
|
case ACPI_RSC_COUNT:
|
|
|
|
item_count = ACPI_GET8(source);
|
|
ACPI_SET8(destination) = (u8) item_count;
|
|
|
|
aml_length =
|
|
(u16) (aml_length +
|
|
(info->value * (item_count - 1)));
|
|
break;
|
|
|
|
case ACPI_RSC_COUNT16:
|
|
|
|
item_count = ACPI_GET16(source);
|
|
aml_length = (u16) (aml_length + item_count);
|
|
acpi_rs_set_resource_length(aml_length, aml);
|
|
break;
|
|
|
|
case ACPI_RSC_LENGTH:
|
|
|
|
acpi_rs_set_resource_length(info->value, aml);
|
|
break;
|
|
|
|
case ACPI_RSC_MOVE8:
|
|
case ACPI_RSC_MOVE16:
|
|
case ACPI_RSC_MOVE32:
|
|
case ACPI_RSC_MOVE64:
|
|
|
|
if (info->value) {
|
|
item_count = info->value;
|
|
}
|
|
acpi_rs_move_data(destination, source, item_count,
|
|
info->opcode);
|
|
break;
|
|
|
|
case ACPI_RSC_ADDRESS:
|
|
|
|
/* Set the Resource Type, General Flags, and Type-Specific Flags */
|
|
|
|
acpi_rs_set_address_common(aml, resource);
|
|
break;
|
|
|
|
case ACPI_RSC_SOURCEX:
|
|
/*
|
|
* Optional resource_source (Index and String)
|
|
*/
|
|
aml_length =
|
|
acpi_rs_set_resource_source(aml, (acpi_rs_length)
|
|
aml_length, source);
|
|
acpi_rs_set_resource_length(aml_length, aml);
|
|
break;
|
|
|
|
case ACPI_RSC_SOURCE:
|
|
/*
|
|
* Optional resource_source (Index and String). This is the more
|
|
* complicated case used by the Interrupt() macro
|
|
*/
|
|
aml_length =
|
|
acpi_rs_set_resource_source(aml, info->value,
|
|
source);
|
|
acpi_rs_set_resource_length(aml_length, aml);
|
|
break;
|
|
|
|
case ACPI_RSC_BITMASK:
|
|
/*
|
|
* 8-bit encoded bitmask (DMA macro)
|
|
*/
|
|
ACPI_SET8(destination) = (u8)
|
|
acpi_rs_encode_bitmask(source,
|
|
*ACPI_ADD_PTR(u8, resource,
|
|
info->value));
|
|
break;
|
|
|
|
case ACPI_RSC_BITMASK16:
|
|
/*
|
|
* 16-bit encoded bitmask (IRQ macro)
|
|
*/
|
|
temp16 = acpi_rs_encode_bitmask(source,
|
|
*ACPI_ADD_PTR(u8,
|
|
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 (item_count <= 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(u8, 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;
|
|
|
|
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->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
|
|
return_ACPI_STATUS(AE_SUPPORT);
|
|
}
|
|
|
|
if (resource->data.start_dpf.performance_robustness >= 3) {
|
|
return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
|
|
}
|
|
|
|
if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
|
|
/*
|
|
* Only [active_high, edge_sensitive] or [active_low, level_sensitive]
|
|
* 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, %X",
|
|
aml->irq.flags));
|
|
return_ACPI_STATUS(AE_BAD_DATA);
|
|
}
|
|
|
|
resource->data.extended_irq.interrupt_count = 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
|