diff options
Diffstat (limited to 'drivers/acpi/resources')
| -rw-r--r-- | drivers/acpi/resources/Makefile | 2 | ||||
| -rw-r--r-- | drivers/acpi/resources/rsaddr.c | 1132 | ||||
| -rw-r--r-- | drivers/acpi/resources/rscalc.c | 282 | ||||
| -rw-r--r-- | drivers/acpi/resources/rscreate.c | 59 | ||||
| -rw-r--r-- | drivers/acpi/resources/rsdump.c | 313 | ||||
| -rw-r--r-- | drivers/acpi/resources/rsinfo.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/resources/rsio.c | 451 | ||||
| -rw-r--r-- | drivers/acpi/resources/rsirq.c | 494 | ||||
| -rw-r--r-- | drivers/acpi/resources/rslist.c | 290 | ||||
| -rw-r--r-- | drivers/acpi/resources/rsmemory.c | 472 | ||||
| -rw-r--r-- | drivers/acpi/resources/rsmisc.c | 711 | ||||
| -rw-r--r-- | drivers/acpi/resources/rsutils.c | 437 | ||||
| -rw-r--r-- | drivers/acpi/resources/rsxface.c | 14 |
13 files changed, 1893 insertions, 2766 deletions
diff --git a/drivers/acpi/resources/Makefile b/drivers/acpi/resources/Makefile index 2130b74170c3..8de4f69dfa09 100644 --- a/drivers/acpi/resources/Makefile +++ b/drivers/acpi/resources/Makefile @@ -2,7 +2,7 @@ # Makefile for all Linux ACPI interpreter subdirectories # -obj-y := rsaddr.o rscreate.o rsio.o rslist.o rsmisc.o rsxface.o \ +obj-y := rsaddr.o rscreate.o rsinfo.o rsio.o rslist.o rsmisc.o rsxface.o \ rscalc.o rsirq.o rsmemory.o rsutils.o obj-$(ACPI_FUTURE_USAGE) += rsdump.o diff --git a/drivers/acpi/resources/rsaddr.c b/drivers/acpi/resources/rsaddr.c index 798778261fb9..6f48ebf3304e 100644 --- a/drivers/acpi/resources/rsaddr.c +++ b/drivers/acpi/resources/rsaddr.c @@ -58,12 +58,20 @@ acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags); static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource); +static void +acpi_rs_set_address_common(union aml_resource *aml, + struct acpi_resource *resource); + +static u8 +acpi_rs_get_address_common(struct acpi_resource *resource, + union aml_resource *aml); + /******************************************************************************* * * FUNCTION: acpi_rs_decode_general_flags * * PARAMETERS: Resource - Address resource data struct - * Flags - Actual flag byte + * Flags - Raw AML flag byte * * RETURN: Decoded flag bits in resource struct * @@ -107,27 +115,19 @@ acpi_rs_decode_general_flags(union acpi_resource_data *resource, u8 flags) static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource) { - u8 flags; - ACPI_FUNCTION_ENTRY(); - /* Producer / Consumer - flag bit[0] */ - - flags = (u8) (resource->address.producer_consumer & 0x01); - - /* Decode (_DEC) - flag bit[1] */ - - flags |= (u8) ((resource->address.decode & 0x01) << 1); - - /* Min Address Fixed (_MIF) - flag bit[2] */ - - flags |= (u8) ((resource->address.min_address_fixed & 0x01) << 2); - - /* Max Address Fixed (_MAF) - flag bit[3] */ - - flags |= (u8) ((resource->address.max_address_fixed & 0x01) << 3); - - return (flags); + return ((u8) + + /* Producer / Consumer - flag bit[0] */ + ((resource->address.producer_consumer & 0x01) | + /* Decode (_DEC) - flag bit[1] */ + ((resource->address.decode & 0x01) << 1) | + /* Min Address Fixed (_MIF) - flag bit[2] */ + ((resource->address.min_address_fixed & 0x01) << 2) | + /* Max Address Fixed (_MAF) - flag bit[3] */ + ((resource->address.max_address_fixed & 0x01) << 3)) + ); } /******************************************************************************* @@ -135,7 +135,7 @@ static u8 acpi_rs_encode_general_flags(union acpi_resource_data *resource) * FUNCTION: acpi_rs_decode_specific_flags * * PARAMETERS: Resource - Address resource data struct - * Flags - Actual flag byte + * Flags - Raw AML flag byte * * RETURN: Decoded flag bits in attribute struct * @@ -189,921 +189,541 @@ acpi_rs_decode_specific_flags(union acpi_resource_data *resource, u8 flags) static u8 acpi_rs_encode_specific_flags(union acpi_resource_data *resource) { - u8 flags = 0; - ACPI_FUNCTION_ENTRY(); if (resource->address.resource_type == ACPI_MEMORY_RANGE) { - /* Write Status (_RW) - flag bit[0] */ - - flags = (u8) - (resource->address.attribute.memory. - read_write_attribute & 0x01); - - /* Memory Attributes (_MEM) - flag bits[2:1] */ - - flags |= (u8) - ((resource->address.attribute.memory. - cache_attribute & 0x03) << 1); + return ((u8) + + /* Write Status (_RW) - flag bit[0] */ + ((resource->address.attribute.memory. + read_write_attribute & 0x01) | + /* Memory Attributes (_MEM) - flag bits[2:1] */ + ((resource->address.attribute.memory. + cache_attribute & 0x03) << 1))); } else if (resource->address.resource_type == ACPI_IO_RANGE) { - /* Ranges (_RNG) - flag bits[1:0] */ - - flags = (u8) - (resource->address.attribute.io.range_attribute & 0x03); - - /* Translations (_TTP and _TRS) - flag bits[5:4] */ - - flags |= (u8) - ((resource->address.attribute.io. - translation_attribute & 0x03) << 4); + return ((u8) + + /* Ranges (_RNG) - flag bits[1:0] */ + ((resource->address.attribute.io. + range_attribute & 0x03) | + /* Translations (_TTP and _TRS) - flag bits[5:4] */ + ((resource->address.attribute.io. + translation_attribute & 0x03) << 4))); } - return (flags); + return (0); } /******************************************************************************* * - * FUNCTION: acpi_rs_address16_resource + * FUNCTION: acpi_rs_set_address_common * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * Resource - Pointer to the internal resource struct * - * RETURN: Status + * RETURN: None * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert common flag fields from a resource descriptor to an + * AML descriptor * ******************************************************************************/ -acpi_status -acpi_rs_address16_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +static void +acpi_rs_set_address_common(union aml_resource *aml, + struct acpi_resource *resource) { - u32 index; - u16 temp16; - u8 temp8; - u8 *temp_ptr; - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16); + ACPI_FUNCTION_ENTRY(); - ACPI_FUNCTION_TRACE("rs_address16_resource"); + /* Set the Resource Type (Memory, Io, bus_number, etc.) */ - /* Get the Descriptor Length field */ + aml->address.resource_type = (u8) resource->data.address.resource_type; - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); + /* Set the general flags */ - /* Validate minimum descriptor length */ + aml->address.flags = acpi_rs_encode_general_flags(&resource->data); - if (temp16 < 13) { - return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); - } + /* Set the type-specific flags */ - *bytes_consumed = temp16 + 3; - output_struct->type = ACPI_RSTYPE_ADDRESS16; + aml->address.specific_flags = + acpi_rs_encode_specific_flags(&resource->data); +} - /* Get the Resource Type (Byte3) */ +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_address_common + * + * PARAMETERS: Resource - Pointer to the internal resource struct + * Aml - Pointer to the AML resource descriptor + * + * RETURN: TRUE if the resource_type field is OK, FALSE otherwise + * + * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor + * to an internal resource descriptor + * + ******************************************************************************/ - buffer += 2; - temp8 = *buffer; +static u8 +acpi_rs_get_address_common(struct acpi_resource *resource, + union aml_resource *aml) +{ + ACPI_FUNCTION_ENTRY(); - /* Values 0-2 and 0xC0-0xFF are valid */ + /* Validate resource type */ - if ((temp8 > 2) && (temp8 < 0xC0)) { - return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); + if ((aml->address.resource_type > 2) + && (aml->address.resource_type < 0xC0)) { + return (FALSE); } - output_struct->data.address16.resource_type = temp8; - - /* Get the General Flags (Byte4) */ - - buffer += 1; - acpi_rs_decode_general_flags(&output_struct->data, *buffer); - - /* Get the Type Specific Flags (Byte5) */ - - buffer += 1; - acpi_rs_decode_specific_flags(&output_struct->data, *buffer); - - /* Get Granularity (Bytes 6-7) */ - - buffer += 1; - ACPI_MOVE_16_TO_32(&output_struct->data.address16.granularity, buffer); + /* Get the Resource Type (Memory, Io, bus_number, etc.) */ - /* Get min_address_range (Bytes 8-9) */ + resource->data.address.resource_type = aml->address.resource_type; - buffer += 2; - ACPI_MOVE_16_TO_32(&output_struct->data.address16.min_address_range, - buffer); + /* Get the General Flags */ - /* Get max_address_range (Bytes 10-11) */ + acpi_rs_decode_general_flags(&resource->data, aml->address.flags); - buffer += 2; - ACPI_MOVE_16_TO_32(&output_struct->data.address16.max_address_range, - buffer); + /* Get the Type-Specific Flags */ - /* Get address_translation_offset (Bytes 12-13) */ - - buffer += 2; - ACPI_MOVE_16_TO_32(&output_struct->data.address16. - address_translation_offset, buffer); + acpi_rs_decode_specific_flags(&resource->data, + aml->address.specific_flags); + return (TRUE); +} - /* Get address_length (Bytes 14-15) */ +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_address16 + * + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. + * + ******************************************************************************/ - buffer += 2; - ACPI_MOVE_16_TO_32(&output_struct->data.address16.address_length, - buffer); +acpi_status +acpi_rs_get_address16(union aml_resource * aml, + u16 aml_resource_length, struct acpi_resource * resource) +{ + ACPI_FUNCTION_TRACE("rs_get_address16"); - /* Resource Source Index (if present) */ + /* Get the Resource Type, general flags, and type-specific flags */ - buffer += 2; + if (!acpi_rs_get_address_common(resource, aml)) { + return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); + } /* - * 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. - * - * Note: Some resource descriptors will have an additional null, so - * we add 1 to the length. + * Get the following contiguous fields from the AML descriptor: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length */ - if (*bytes_consumed > (16 + 1)) { - /* Dereference the Index */ - - output_struct->data.address16.resource_source.index = - (u32) * buffer; - - /* Point to the String */ + acpi_rs_move_data(&resource->data.address16.granularity, + &aml->address16.granularity, 5, + ACPI_MOVE_TYPE_16_TO_32); - buffer += 1; + /* Get the optional resource_source (index and string) */ - /* Point the String pointer to the end of this structure */ + resource->length = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16) + + acpi_rs_get_resource_source(aml_resource_length, + sizeof(struct aml_resource_address16), + &resource->data.address16. + resource_source, aml, NULL); - output_struct->data.address16.resource_source.string_ptr = - (char *)((u8 *) output_struct + struct_size); + /* Complete the resource header */ - temp_ptr = (u8 *) - output_struct->data.address16.resource_source.string_ptr; - - /* Copy the resource_source string into the buffer */ - - index = 0; - while (*buffer) { - *temp_ptr = *buffer; - - temp_ptr++; - buffer++; - index++; - } - - /* Add the terminating null and set the string length */ - - *temp_ptr = 0; - output_struct->data.address16.resource_source.string_length = - index + 1; - - /* - * In order for the struct_size to fall on a 32-bit boundary, - * calculate the length of the string and expand the - * struct_size to the next 32-bit boundary. - */ - temp8 = (u8) (index + 1); - struct_size += ACPI_ROUND_UP_to_32_bITS(temp8); - } else { - output_struct->data.address16.resource_source.index = 0; - output_struct->data.address16.resource_source.string_length = 0; - output_struct->data.address16.resource_source.string_ptr = NULL; - } - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_ADDRESS16; return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_address16_stream + * FUNCTION: acpi_rs_set_address16 * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_address16_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_address16(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - u8 *length_field; - acpi_size actual_bytes; - - ACPI_FUNCTION_TRACE("rs_address16_stream"); - - /* Set the Descriptor Type field */ + acpi_size descriptor_length; - *buffer = ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE; - buffer += 1; + ACPI_FUNCTION_TRACE("rs_set_address16"); - /* Save a pointer to the Length field - to be filled in later */ + /* Set the Resource Type, General Flags, and Type-Specific Flags */ - length_field = buffer; - buffer += 2; - - /* Set the Resource Type (Memory, Io, bus_number) */ - - *buffer = (u8) (resource->data.address16.resource_type & 0x03); - buffer += 1; - - /* Set the general flags */ + acpi_rs_set_address_common(aml, resource); - *buffer = acpi_rs_encode_general_flags(&resource->data); - buffer += 1; - - /* Set the type specific flags */ - - *buffer = acpi_rs_encode_specific_flags(&resource->data); - buffer += 1; - - /* Set the address space granularity */ - - ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.granularity); - buffer += 2; - - /* Set the address range minimum */ - - ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.min_address_range); - buffer += 2; - - /* Set the address range maximum */ - - ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.max_address_range); - buffer += 2; - - /* Set the address translation offset */ - - ACPI_MOVE_32_TO_16(buffer, - &resource->data.address16. - address_translation_offset); - buffer += 2; - - /* Set the address length */ - - ACPI_MOVE_32_TO_16(buffer, &resource->data.address16.address_length); - buffer += 2; + /* + * Set the following contiguous fields in the AML descriptor: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + acpi_rs_move_data(&aml->address16.granularity, + &resource->data.address16.granularity, 5, + ACPI_MOVE_TYPE_32_TO_16); /* Resource Source Index and Resource Source are optional */ - if (resource->data.address16.resource_source.string_length) { - *buffer = (u8) resource->data.address16.resource_source.index; - buffer += 1; + descriptor_length = acpi_rs_set_resource_source(aml, + sizeof(struct + aml_resource_address16), + &resource->data. + address16. + resource_source); - /* Copy the resource_source string */ + /* Complete the AML descriptor header */ - ACPI_STRCPY((char *)buffer, - resource->data.address16.resource_source. - string_ptr); - - /* - * Buffer needs to be set to the length of the string + one for the - * terminating null - */ - buffer += - (acpi_size) (ACPI_STRLEN - (resource->data.address16.resource_source. - string_ptr) + 1); - } - - /* Return the number of bytes consumed in this operation */ - - actual_bytes = ACPI_PTR_DIFF(buffer, *output_buffer); - *bytes_consumed = actual_bytes; - - /* - * Set the length field to the number of bytes consumed - * minus the header size (3 bytes) - */ - actual_bytes -= 3; - ACPI_MOVE_SIZE_TO_16(length_field, &actual_bytes); + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS16, + descriptor_length, aml); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_address32_resource + * FUNCTION: acpi_rs_get_address32 * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_address32_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_address32(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u16 temp16; - u8 temp8; - u8 *temp_ptr; - u32 index; - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32); - - ACPI_FUNCTION_TRACE("rs_address32_resource"); - - /* Get the Descriptor Length field */ - - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); - /* Validate minimum descriptor length */ + ACPI_FUNCTION_TRACE("rs_get_address32"); - if (temp16 < 23) { - return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); - } - - *bytes_consumed = temp16 + 3; - output_struct->type = ACPI_RSTYPE_ADDRESS32; - - /* Get the Resource Type (Byte3) */ - - buffer += 2; - temp8 = *buffer; + /* Get the Resource Type, general flags, and type-specific flags */ - /* Values 0-2 and 0xC0-0xFF are valid */ - - if ((temp8 > 2) && (temp8 < 0xC0)) { + if (!acpi_rs_get_address_common(resource, (void *)aml)) { return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); } - output_struct->data.address32.resource_type = temp8; - - /* Get the General Flags (Byte4) */ - - buffer += 1; - acpi_rs_decode_general_flags(&output_struct->data, *buffer); - - /* Get the Type Specific Flags (Byte5) */ - - buffer += 1; - acpi_rs_decode_specific_flags(&output_struct->data, *buffer); - - /* Get Granularity (Bytes 6-9) */ - - buffer += 1; - ACPI_MOVE_32_TO_32(&output_struct->data.address32.granularity, buffer); - - /* Get min_address_range (Bytes 10-13) */ - - buffer += 4; - ACPI_MOVE_32_TO_32(&output_struct->data.address32.min_address_range, - buffer); - - /* Get max_address_range (Bytes 14-17) */ - - buffer += 4; - ACPI_MOVE_32_TO_32(&output_struct->data.address32.max_address_range, - buffer); - - /* Get address_translation_offset (Bytes 18-21) */ - - buffer += 4; - ACPI_MOVE_32_TO_32(&output_struct->data.address32. - address_translation_offset, buffer); - - /* Get address_length (Bytes 22-25) */ - - buffer += 4; - ACPI_MOVE_32_TO_32(&output_struct->data.address32.address_length, - buffer); - - /* Resource Source Index (if present) */ - - 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: - * - * Note: Some resource descriptors will have an additional null, so - * we add 1 to the length. + * Get the following contiguous fields from the AML descriptor: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length */ - if (*bytes_consumed > (26 + 1)) { - /* Dereference the Index */ - - output_struct->data.address32.resource_source.index = - (u32) * buffer; - - /* Point to the String */ + acpi_rs_move_data(&resource->data.address32.granularity, + &aml->address32.granularity, 5, + ACPI_MOVE_TYPE_32_TO_32); - buffer += 1; + /* Get the optional resource_source (index and string) */ - /* Point the String pointer to the end of this structure */ + resource->length = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32) + + acpi_rs_get_resource_source(aml_resource_length, + sizeof(struct aml_resource_address32), + &resource->data.address32. + resource_source, aml, NULL); - output_struct->data.address32.resource_source.string_ptr = - (char *)((u8 *) output_struct + struct_size); + /* Complete the resource header */ - temp_ptr = (u8 *) - output_struct->data.address32.resource_source.string_ptr; - - /* Copy the resource_source string into the buffer */ - - index = 0; - while (*buffer) { - *temp_ptr = *buffer; - - temp_ptr++; - buffer++; - index++; - } - - /* Add the terminating null and set the string length */ - - *temp_ptr = 0; - output_struct->data.address32.resource_source.string_length = - index + 1; - - /* - * In order for the struct_size to fall on a 32-bit boundary, - * calculate the length of the string and expand the - * struct_size to the next 32-bit boundary. - */ - temp8 = (u8) (index + 1); - struct_size += ACPI_ROUND_UP_to_32_bITS(temp8); - } else { - output_struct->data.address32.resource_source.index = 0; - output_struct->data.address32.resource_source.string_length = 0; - output_struct->data.address32.resource_source.string_ptr = NULL; - } - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_ADDRESS32; return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_address32_stream + * FUNCTION: acpi_rs_set_address32 * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_address32_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_address32(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer; - u16 *length_field; - - ACPI_FUNCTION_TRACE("rs_address32_stream"); - - buffer = *output_buffer; + acpi_size descriptor_length; - /* Set the Descriptor Type field */ + ACPI_FUNCTION_TRACE("rs_set_address32"); - *buffer = ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE; - buffer += 1; + /* Set the Resource Type, General Flags, and Type-Specific Flags */ - /* Save a pointer to the Length field - to be filled in later */ + acpi_rs_set_address_common(aml, resource); - length_field = ACPI_CAST_PTR(u16, buffer); - buffer += 2; - - /* Set the Resource Type (Memory, Io, bus_number) */ - - *buffer = (u8) (resource->data.address32.resource_type & 0x03); - buffer += 1; - - /* Set the general flags */ - - *buffer = acpi_rs_encode_general_flags(&resource->data); - buffer += 1; - - /* Set the type specific flags */ - - *buffer = acpi_rs_encode_specific_flags(&resource->data); - buffer += 1; - - /* Set the address space granularity */ - - ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.granularity); - buffer += 4; - - /* Set the address range minimum */ - - ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.min_address_range); - buffer += 4; - - /* Set the address range maximum */ - - ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.max_address_range); - buffer += 4; - - /* Set the address translation offset */ - - ACPI_MOVE_32_TO_32(buffer, - &resource->data.address32. - address_translation_offset); - buffer += 4; - - /* Set the address length */ - - ACPI_MOVE_32_TO_32(buffer, &resource->data.address32.address_length); - buffer += 4; + /* + * Set the following contiguous fields in the AML descriptor: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + acpi_rs_move_data(&aml->address32.granularity, + &resource->data.address32.granularity, 5, + ACPI_MOVE_TYPE_32_TO_32); /* Resource Source Index and Resource Source are optional */ - if (resource->data.address32.resource_source.string_length) { - *buffer = (u8) resource->data.address32.resource_source.index; - buffer += 1; - - /* Copy the resource_source string */ + descriptor_length = acpi_rs_set_resource_source(aml, + sizeof(struct + aml_resource_address32), + &resource->data. + address32. + resource_source); - ACPI_STRCPY((char *)buffer, - resource->data.address32.resource_source. - string_ptr); + /* Complete the AML descriptor header */ - /* - * Buffer needs to be set to the length of the string + one for the - * terminating null - */ - buffer += - (acpi_size) (ACPI_STRLEN - (resource->data.address32.resource_source. - string_ptr) + 1); - } - - /* Return the number of bytes consumed in this operation */ - - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); - - /* - * Set the length field to the number of bytes consumed - * minus the header size (3 bytes) - */ - *length_field = (u16) (*bytes_consumed - 3); + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS32, + descriptor_length, aml); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_address64_resource + * FUNCTION: acpi_rs_get_address64 * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_address64_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_address64(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u16 temp16; - u8 temp8; - u8 resource_type; - u8 *temp_ptr; - u32 index; - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64); - - ACPI_FUNCTION_TRACE("rs_address64_resource"); - - /* Get the Descriptor Type */ - - resource_type = *buffer; - - /* Get the Descriptor Length field */ - - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); - - /* Validate minimum descriptor length */ - - if (temp16 < 43) { - return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); - } - - *bytes_consumed = temp16 + 3; - output_struct->type = ACPI_RSTYPE_ADDRESS64; - - /* Get the Resource Type (Byte3) */ + ACPI_FUNCTION_TRACE("rs_get_address64"); - buffer += 2; - temp8 = *buffer; + /* Get the Resource Type, general Flags, and type-specific Flags */ - /* Values 0-2 and 0xC0-0xFF are valid */ - - if ((temp8 > 2) && (temp8 < 0xC0)) { + if (!acpi_rs_get_address_common(resource, aml)) { return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); } - output_struct->data.address64.resource_type = temp8; - - /* Get the General Flags (Byte4) */ - - buffer += 1; - acpi_rs_decode_general_flags(&output_struct->data, *buffer); - - /* Get the Type Specific Flags (Byte5) */ - - buffer += 1; - acpi_rs_decode_specific_flags(&output_struct->data, *buffer); - - if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) { - /* Move past revision_id and Reserved byte */ - - buffer += 2; - } - - /* Get Granularity (Bytes 6-13) or (Bytes 8-15) */ - - buffer += 1; - ACPI_MOVE_64_TO_64(&output_struct->data.address64.granularity, buffer); - - /* Get min_address_range (Bytes 14-21) or (Bytes 16-23) */ - - buffer += 8; - ACPI_MOVE_64_TO_64(&output_struct->data.address64.min_address_range, - buffer); - - /* Get max_address_range (Bytes 22-29) or (Bytes 24-31) */ - - buffer += 8; - ACPI_MOVE_64_TO_64(&output_struct->data.address64.max_address_range, - buffer); - - /* Get address_translation_offset (Bytes 30-37) or (Bytes 32-39) */ - - buffer += 8; - ACPI_MOVE_64_TO_64(&output_struct->data.address64. - address_translation_offset, buffer); + /* + * Get the following contiguous fields from the AML descriptor: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + acpi_rs_move_data(&resource->data.address64.granularity, + &aml->address64.granularity, 5, + ACPI_MOVE_TYPE_64_TO_64); - /* Get address_length (Bytes 38-45) or (Bytes 40-47) */ + /* Get the optional resource_source (index and string) */ - buffer += 8; - ACPI_MOVE_64_TO_64(&output_struct->data.address64.address_length, - buffer); + resource->length = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64) + + acpi_rs_get_resource_source(aml_resource_length, + sizeof(struct aml_resource_address64), + &resource->data.address64. + resource_source, aml, NULL); - output_struct->data.address64.resource_source.index = 0; - output_struct->data.address64.resource_source.string_length = 0; - output_struct->data.address64.resource_source.string_ptr = NULL; + /* Complete the resource header */ - if (resource_type == ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE) { - /* Get type_specific_attribute (Bytes 48-55) */ + resource->type = ACPI_RESOURCE_TYPE_ADDRESS64; + return_ACPI_STATUS(AE_OK); +} - buffer += 8; - ACPI_MOVE_64_TO_64(&output_struct->data.address64. - type_specific_attributes, buffer); - } else { - output_struct->data.address64.type_specific_attributes = 0; +/******************************************************************************* + * + * FUNCTION: acpi_rs_set_address64 + * + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. + * + ******************************************************************************/ - /* Resource Source Index (if present) */ +acpi_status +acpi_rs_set_address64(struct acpi_resource *resource, union aml_resource *aml) +{ + acpi_size descriptor_length; - buffer += 8; + ACPI_FUNCTION_TRACE("rs_set_address64"); - /* - * 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. - * - * Note: Some resource descriptors will have an additional null, so - * we add 1 to the length. - */ - if (*bytes_consumed > (46 + 1)) { - /* Dereference the Index */ + /* Set the Resource Type, General Flags, and Type-Specific Flags */ - output_struct->data.address64.resource_source.index = - (u32) * buffer; + acpi_rs_set_address_common(aml, resource); - /* Point to the String */ + /* + * Set the following contiguous fields in the AML descriptor: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + acpi_rs_move_data(&aml->address64.granularity, + &resource->data.address64.granularity, 5, + ACPI_MOVE_TYPE_64_TO_64); - buffer += 1; + /* Resource Source Index and Resource Source are optional */ - /* Point the String pointer to the end of this structure */ + descriptor_length = acpi_rs_set_resource_source(aml, + sizeof(struct + aml_resource_address64), + &resource->data. + address64. + resource_source); - output_struct->data.address64.resource_source. - string_ptr = - (char *)((u8 *) output_struct + struct_size); + /* Complete the AML descriptor header */ - temp_ptr = (u8 *) - output_struct->data.address64.resource_source. - string_ptr; + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_ADDRESS64, + descriptor_length, aml); + return_ACPI_STATUS(AE_OK); +} - /* Copy the resource_source string into the buffer */ +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_ext_address64 + * + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. + * + ******************************************************************************/ - index = 0; - while (*buffer) { - *temp_ptr = *buffer; +acpi_status +acpi_rs_get_ext_address64(union aml_resource *aml, + u16 aml_resource_length, + struct acpi_resource *resource) +{ - temp_ptr++; - buffer++; - index++; - } + ACPI_FUNCTION_TRACE("rs_get_ext_address64"); - /* - * Add the terminating null and set the string length - */ - *temp_ptr = 0; - output_struct->data.address64.resource_source. - string_length = index + 1; + /* Get the Resource Type, general flags, and type-specific flags */ - /* - * In order for the struct_size to fall on a 32-bit boundary, - * calculate the length of the string and expand the - * struct_size to the next 32-bit boundary. - */ - temp8 = (u8) (index + 1); - struct_size += ACPI_ROUND_UP_to_32_bITS(temp8); - } + if (!acpi_rs_get_address_common(resource, aml)) { + return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); } - /* Set the Length parameter */ + /* + * Get and validate the Revision ID + * Note: Only one revision ID is currently supported + */ + resource->data.ext_address64.revision_iD = + aml->ext_address64.revision_iD; + if (aml->ext_address64.revision_iD != + AML_RESOURCE_EXTENDED_ADDRESS_REVISION) { + return_ACPI_STATUS(AE_SUPPORT); + } - output_struct->length = (u32) struct_size; + /* + * Get the following contiguous fields from the AML descriptor: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + * Type-Specific Attribute + */ + acpi_rs_move_data(&resource->data.ext_address64.granularity, + &aml->ext_address64.granularity, 6, + ACPI_MOVE_TYPE_64_TO_64); - /* Return the final size of the structure */ + /* Complete the resource header */ - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64; + resource->length = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_extended_address64); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_address64_stream + * FUNCTION: acpi_rs_set_ext_address64 * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_address64_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_ext_address64(struct acpi_resource *resource, + union aml_resource *aml) { - u8 *buffer; - u16 *length_field; - - ACPI_FUNCTION_TRACE("rs_address64_stream"); - - buffer = *output_buffer; - - /* Set the Descriptor Type field */ - - *buffer = ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE; - buffer += 1; - - /* Save a pointer to the Length field - to be filled in later */ - - length_field = ACPI_CAST_PTR(u16, buffer); - buffer += 2; - - /* Set the Resource Type (Memory, Io, bus_number) */ - - *buffer = (u8) (resource->data.address64.resource_type & 0x03); - buffer += 1; - - /* Set the general flags */ - - *buffer = acpi_rs_encode_general_flags(&resource->data); - buffer += 1; - - /* Set the type specific flags */ - - *buffer = acpi_rs_encode_specific_flags(&resource->data); - buffer += 1; - - /* Set the address space granularity */ + ACPI_FUNCTION_TRACE("rs_set_ext_address64"); - ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.granularity); - buffer += 8; + /* Set the Resource Type, General Flags, and Type-Specific Flags */ - /* Set the address range minimum */ + acpi_rs_set_address_common(aml, resource); - ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.min_address_range); - buffer += 8; + /* Only one Revision ID is currently supported */ - /* Set the address range maximum */ - - ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.max_address_range); - buffer += 8; - - /* Set the address translation offset */ - - ACPI_MOVE_64_TO_64(buffer, - &resource->data.address64. - address_translation_offset); - buffer += 8; - - /* Set the address length */ - - ACPI_MOVE_64_TO_64(buffer, &resource->data.address64.address_length); - buffer += 8; - - /* Resource Source Index and Resource Source are optional */ - - if (resource->data.address64.resource_source.string_length) { - *buffer = (u8) resource->data.address64.resource_source.index; - buffer += 1; - - /* Copy the resource_source string */ - - ACPI_STRCPY((char *)buffer, - resource->data.address64.resource_source. - string_ptr); - - /* - * Buffer needs to be set to the length of the string + one for the - * terminating null - */ - buffer += - (acpi_size) (ACPI_STRLEN - (resource->data.address64.resource_source. - string_ptr) + 1); - } - - /* Return the number of bytes consumed in this operation */ - - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + aml->ext_address64.revision_iD = AML_RESOURCE_EXTENDED_ADDRESS_REVISION; + aml->ext_address64.reserved = 0; /* - * Set the length field to the number of bytes consumed - * minus the header size (3 bytes) + * Set the following contiguous fields in the AML descriptor: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + * Type-Specific Attribute */ - *length_field = (u16) (*bytes_consumed - 3); + acpi_rs_move_data(&aml->ext_address64.granularity, + &resource->data.address64.granularity, 6, + ACPI_MOVE_TYPE_64_TO_64); + + /* Complete the AML descriptor header */ + + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64, + sizeof(struct + aml_resource_extended_address64), + aml); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c index 2da7c6a8182e..d170dee07ce9 100644 --- a/drivers/acpi/resources/rscalc.c +++ b/drivers/acpi/resources/rscalc.c @@ -44,87 +44,14 @@ #include <acpi/acpi.h> #include <acpi/acresrc.h> #include <acpi/amlcode.h> -#include <acpi/amlresrc.h> #include <acpi/acnamesp.h> #define _COMPONENT ACPI_RESOURCES ACPI_MODULE_NAME("rscalc") -/* - * Base sizes for external resource descriptors, indexed by internal type. - * Includes size of the descriptor header (1 byte for small descriptors, - * 3 bytes for large descriptors) - */ -static u8 acpi_gbl_stream_sizes[] = { - 4, /* ACPI_RSTYPE_IRQ (Byte 3 is optional, but always created) */ - 3, /* ACPI_RSTYPE_DMA */ - 2, /* ACPI_RSTYPE_START_DPF (Byte 1 is optional, but always created) */ - 1, /* ACPI_RSTYPE_END_DPF */ - 8, /* ACPI_RSTYPE_IO */ - 4, /* ACPI_RSTYPE_FIXED_IO */ - 1, /* ACPI_RSTYPE_VENDOR */ - 2, /* ACPI_RSTYPE_END_TAG */ - 12, /* ACPI_RSTYPE_MEM24 */ - 20, /* ACPI_RSTYPE_MEM32 */ - 12, /* ACPI_RSTYPE_FIXED_MEM32 */ - 16, /* ACPI_RSTYPE_ADDRESS16 */ - 26, /* ACPI_RSTYPE_ADDRESS32 */ - 46, /* ACPI_RSTYPE_ADDRESS64 */ - 9, /* ACPI_RSTYPE_EXT_IRQ */ - 15 /* ACPI_RSTYPE_GENERIC_REG */ -}; - -/* - * Base sizes of resource descriptors, both the actual AML stream length and - * size of the internal struct representation. - */ -struct acpi_resource_sizes { - u8 minimum_stream_size; - u8 minimum_struct_size; -}; - -static struct acpi_resource_sizes acpi_gbl_sm_resource_sizes[] = { - {0, 0}, /* 0x00, Reserved */ - {0, 0}, /* 0x01, Reserved */ - {0, 0}, /* 0x02, Reserved */ - {0, 0}, /* 0x03, Reserved */ - {3, ACPI_SIZEOF_RESOURCE(struct acpi_resource_irq)}, /* ACPI_RDESC_TYPE_IRQ_FORMAT */ - {3, ACPI_SIZEOF_RESOURCE(struct acpi_resource_dma)}, /* ACPI_RDESC_TYPE_DMA_FORMAT */ - {1, ACPI_SIZEOF_RESOURCE(struct acpi_resource_start_dpf)}, /* ACPI_RDESC_TYPE_START_DEPENDENT */ - {1, ACPI_RESOURCE_LENGTH}, /* ACPI_RDESC_TYPE_END_DEPENDENT */ - {8, ACPI_SIZEOF_RESOURCE(struct acpi_resource_io)}, /* ACPI_RDESC_TYPE_IO_PORT */ - {4, ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_io)}, /* ACPI_RDESC_TYPE_FIXED_IO_PORT */ - {0, 0}, /* 0x0A, Reserved */ - {0, 0}, /* 0x0B, Reserved */ - {0, 0}, /* 0x0C, Reserved */ - {0, 0}, /* 0x0D, Reserved */ - {1, ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor)}, /* ACPI_RDESC_TYPE_SMALL_VENDOR */ - {2, ACPI_RESOURCE_LENGTH}, /* ACPI_RDESC_TYPE_END_TAG */ -}; - -static struct acpi_resource_sizes acpi_gbl_lg_resource_sizes[] = { - {0, 0}, /* 0x00, Reserved */ - {12, ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem24)}, /* ACPI_RDESC_TYPE_MEMORY_24 */ - {15, ACPI_SIZEOF_RESOURCE(struct acpi_resource_generic_reg)}, /* ACPI_RDESC_TYPE_GENERIC_REGISTER */ - {0, 0}, /* 0x03, Reserved */ - {3, ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor)}, /* ACPI_RDESC_TYPE_LARGE_VENDOR */ - {20, ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem32)}, /* ACPI_RDESC_TYPE_MEMORY_32 */ - {12, ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_mem32)}, /* ACPI_RDESC_TYPE_FIXED_MEMORY_32 */ - {26, ACPI_SIZEOF_RESOURCE(struct acpi_resource_address32)}, /* ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE */ - {16, ACPI_SIZEOF_RESOURCE(struct acpi_resource_address16)}, /* ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE */ - {9, ACPI_SIZEOF_RESOURCE(struct acpi_resource_ext_irq)}, /* ACPI_RDESC_TYPE_EXTENDED_XRUPT */ - {46, ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64)}, /* ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE */ - {56, ACPI_SIZEOF_RESOURCE(struct acpi_resource_address64)}, /* ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE */ -}; - /* Local prototypes */ - static u8 acpi_rs_count_set_bits(u16 bit_field); -static struct acpi_resource_sizes *acpi_rs_get_resource_sizes(u8 resource_type); - -static u16 acpi_rs_get_resource_length(u8 * resource); - static acpi_size acpi_rs_struct_option_length(struct acpi_resource_source *resource_source); @@ -161,90 +88,6 @@ static u8 acpi_rs_count_set_bits(u16 bit_field) /******************************************************************************* * - * FUNCTION: acpi_rs_get_resource_sizes - * - * PARAMETERS: resource_type - Byte 0 of a resource descriptor - * - * RETURN: Pointer to the resource conversion handler - * - * DESCRIPTION: Extract the Resource Type/Name from the first byte of - * a resource descriptor. - * - ******************************************************************************/ - -static struct acpi_resource_sizes *acpi_rs_get_resource_sizes(u8 resource_type) -{ - struct acpi_resource_sizes *size_info; - - ACPI_FUNCTION_ENTRY(); - - /* Determine if this is a small or large resource */ - - if (resource_type & ACPI_RDESC_TYPE_LARGE) { - /* Large Resource Type -- bits 6:0 contain the name */ - - if (resource_type > ACPI_RDESC_LARGE_MAX) { - return (NULL); - } - - size_info = &acpi_gbl_lg_resource_sizes[(resource_type & - ACPI_RDESC_LARGE_MASK)]; - } else { - /* Small Resource Type -- bits 6:3 contain the name */ - - size_info = &acpi_gbl_sm_resource_sizes[((resource_type & - ACPI_RDESC_SMALL_MASK) - >> 3)]; - } - - /* Zero entry indicates an invalid resource type */ - - if (!size_info->minimum_stream_size) { - return (NULL); - } - - return (size_info); -} - -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_resource_length - * - * PARAMETERS: Resource - Pointer to the resource descriptor - * - * RETURN: Byte length of the (AML byte stream) descriptor. By definition, - * this does not include the size of the descriptor header and the - * length field itself. - * - * DESCRIPTION: Extract the length of a resource descriptor. - * - ******************************************************************************/ - -static u16 acpi_rs_get_resource_length(u8 * resource) -{ - u16 resource_length; - - ACPI_FUNCTION_ENTRY(); - - /* Determine if this is a small or large resource */ - - if (*resource & ACPI_RDESC_TYPE_LARGE) { - /* Large Resource type -- length is in bytes 1-2 */ - - ACPI_MOVE_16_TO_16(&resource_length, (resource + 1)); - - } else { - /* Small Resource Type -- bits 2:0 of byte 0 contain the length */ - - resource_length = - (u16) (*resource & ACPI_RDESC_SMALL_LENGTH_MASK); - } - - return (resource_length); -} - -/******************************************************************************* - * * FUNCTION: acpi_rs_struct_option_length * * PARAMETERS: resource_source - Pointer to optional descriptor field @@ -291,10 +134,10 @@ acpi_rs_struct_option_length(struct acpi_resource_source *resource_source) ******************************************************************************/ static u32 -acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length) +acpi_rs_stream_option_length(u32 resource_length, + u32 minimum_aml_resource_length) { u32 string_length = 0; - u32 minimum_resource_length; ACPI_FUNCTION_ENTRY(); @@ -303,11 +146,6 @@ acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length) * Large-type resource descriptors. */ - /* Compute minimum size of the data part of the resource descriptor */ - - minimum_resource_length = - minimum_total_length - sizeof(struct asl_large_header); - /* * If the length of the actual resource descriptor is greater than the ACPI * spec-defined minimum length, it means that a resource_source_index exists @@ -315,10 +153,11 @@ acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length) * (including the null terminator) is the resource length minus the minimum * length, minus one byte for the resource_source_index itself. */ - if (resource_length > minimum_resource_length) { + if (resource_length > minimum_aml_resource_length) { /* Compute the length of the optional string */ - string_length = resource_length - minimum_resource_length - 1; + string_length = + resource_length - minimum_aml_resource_length - 1; } /* Round up length to 32 bits for internal structure alignment */ @@ -328,7 +167,7 @@ acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length) /******************************************************************************* * - * FUNCTION: acpi_rs_get_byte_stream_length + * FUNCTION: acpi_rs_get_aml_length * * PARAMETERS: Resource - Pointer to the resource linked list * size_needed - Where the required size is returned @@ -342,62 +181,62 @@ acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length) ******************************************************************************/ acpi_status -acpi_rs_get_byte_stream_length(struct acpi_resource * resource, - acpi_size * size_needed) +acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed) { - acpi_size byte_stream_size_needed = 0; + acpi_size aml_size_needed = 0; acpi_size segment_size; - ACPI_FUNCTION_TRACE("rs_get_byte_stream_length"); + ACPI_FUNCTION_TRACE("rs_get_aml_length"); /* Traverse entire list of internal resource descriptors */ while (resource) { /* Validate the descriptor type */ - if (resource->type > ACPI_RSTYPE_MAX) { + if (resource->type > ACPI_RESOURCE_TYPE_MAX) { return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); } /* Get the base size of the (external stream) resource descriptor */ - segment_size = acpi_gbl_stream_sizes[resource->type]; + segment_size = acpi_gbl_aml_resource_sizes[resource->type]; /* * Augment the base size for descriptors with optional and/or * variable-length fields */ switch (resource->type) { - case ACPI_RSTYPE_VENDOR: + case ACPI_RESOURCE_TYPE_VENDOR: /* * Vendor Defined Resource: * For a Vendor Specific resource, if the Length is between 1 and 7 * it will be created as a Small Resource data type, otherwise it * is a Large Resource data type. */ - if (resource->data.vendor_specific.length > 7) { + if (resource->data.vendor.byte_length > 7) { /* Base size of a Large resource descriptor */ - segment_size = 3; + segment_size = + sizeof(struct aml_resource_large_header); } /* Add the size of the vendor-specific data */ - segment_size += resource->data.vendor_specific.length; + segment_size += resource->data.vendor.byte_length; break; - case ACPI_RSTYPE_END_TAG: + case ACPI_RESOURCE_TYPE_END_TAG: /* * End Tag: * We are done -- return the accumulated total size. */ - *size_needed = byte_stream_size_needed + segment_size; + *size_needed = aml_size_needed + segment_size; /* Normal exit */ return_ACPI_STATUS(AE_OK); - case ACPI_RSTYPE_ADDRESS16: + case ACPI_RESOURCE_TYPE_ADDRESS16: /* * 16-Bit Address Resource: * Add the size of the optional resource_source info @@ -408,7 +247,7 @@ acpi_rs_get_byte_stream_length(struct acpi_resource * resource, resource_source); break; - case ACPI_RSTYPE_ADDRESS32: + case ACPI_RESOURCE_TYPE_ADDRESS32: /* * 32-Bit Address Resource: * Add the size of the optional resource_source info @@ -419,7 +258,7 @@ acpi_rs_get_byte_stream_length(struct acpi_resource * resource, resource_source); break; - case ACPI_RSTYPE_ADDRESS64: + case ACPI_RESOURCE_TYPE_ADDRESS64: /* * 64-Bit Address Resource: * Add the size of the optional resource_source info @@ -430,7 +269,7 @@ acpi_rs_get_byte_stream_length(struct acpi_resource * resource, resource_source); break; - case ACPI_RSTYPE_EXT_IRQ: + case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: /* * Extended IRQ Resource: * Add the size of each additional optional interrupt beyond the @@ -438,7 +277,7 @@ acpi_rs_get_byte_stream_length(struct acpi_resource * resource, */ segment_size += (((acpi_size) resource->data.extended_irq. - number_of_interrupts - 1) * 4); + interrupt_count - 1) * 4); /* Add the size of the optional resource_source info */ @@ -454,7 +293,7 @@ acpi_rs_get_byte_stream_length(struct acpi_resource * resource, /* Update the total */ - byte_stream_size_needed += segment_size; + aml_size_needed += segment_size; /* Point to the next object */ @@ -471,9 +310,9 @@ acpi_rs_get_byte_stream_length(struct acpi_resource * resource, * * FUNCTION: acpi_rs_get_list_length * - * PARAMETERS: byte_stream_buffer - Pointer to the resource byte stream - * byte_stream_buffer_length - Size of byte_stream_buffer - * size_needed - Where the size needed is returned + * PARAMETERS: aml_buffer - Pointer to the resource byte stream + * aml_buffer_length - Size of aml_buffer + * size_needed - Where the size needed is returned * * RETURN: Status * @@ -484,11 +323,11 @@ acpi_rs_get_byte_stream_length(struct acpi_resource * resource, ******************************************************************************/ acpi_status -acpi_rs_get_list_length(u8 * byte_stream_buffer, - u32 byte_stream_buffer_length, acpi_size * size_needed) +acpi_rs_get_list_length(u8 * aml_buffer, + u32 aml_buffer_length, acpi_size * size_needed) { u8 *buffer; - struct acpi_resource_sizes *resource_info; + struct acpi_resource_info *resource_info; u32 buffer_size = 0; u32 bytes_parsed = 0; u8 resource_type; @@ -499,14 +338,14 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, ACPI_FUNCTION_TRACE("rs_get_list_length"); - while (bytes_parsed < byte_stream_buffer_length) { + while (bytes_parsed < aml_buffer_length) { /* The next byte in the stream is the resource descriptor type */ - resource_type = acpi_rs_get_resource_type(*byte_stream_buffer); + resource_type = acpi_rs_get_resource_type(*aml_buffer); /* Get the base stream size and structure sizes for the descriptor */ - resource_info = acpi_rs_get_resource_sizes(resource_type); + resource_info = acpi_rs_get_resource_info(resource_type); if (!resource_info) { return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); } @@ -514,43 +353,46 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, /* Get the Length field from the input resource descriptor */ resource_length = - acpi_rs_get_resource_length(byte_stream_buffer); + acpi_rs_get_resource_length(ACPI_CAST_PTR + (union aml_resource, + aml_buffer)); /* Augment the size for descriptors with optional fields */ extra_struct_bytes = 0; - if (!(resource_type & ACPI_RDESC_TYPE_LARGE)) { + if (!(resource_type & ACPI_RESOURCE_NAME_LARGE)) { /* * Small resource descriptors */ - header_length = 1; - buffer = byte_stream_buffer + header_length; + header_length = + sizeof(struct aml_resource_small_header); + buffer = aml_buffer + header_length; switch (resource_type) { - case ACPI_RDESC_TYPE_IRQ_FORMAT: + case ACPI_RESOURCE_NAME_IRQ: /* * IRQ Resource: * Get the number of bits set in the IRQ word */ ACPI_MOVE_16_TO_16(&temp16, buffer); - extra_struct_bytes = (acpi_rs_count_set_bits(temp16) * sizeof(u32)); break; - case ACPI_RDESC_TYPE_DMA_FORMAT: + case ACPI_RESOURCE_NAME_DMA: /* * DMA Resource: * Get the number of bits set in the DMA channels byte */ + ACPI_MOVE_16_TO_16(&temp16, buffer); extra_struct_bytes = - (acpi_rs_count_set_bits((u16) * buffer) * + (acpi_rs_count_set_bits(temp16) * sizeof(u32)); break; - case ACPI_RDESC_TYPE_SMALL_VENDOR: + case ACPI_RESOURCE_NAME_VENDOR_SMALL: /* * Vendor Specific Resource: * Ensure a 32-bit boundary for the structure @@ -559,12 +401,12 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, ACPI_ROUND_UP_to_32_bITS(resource_length); break; - case ACPI_RDESC_TYPE_END_TAG: + case ACPI_RESOURCE_NAME_END_TAG: /* * End Tag: * Terminate the loop now */ - byte_stream_buffer_length = bytes_parsed; + aml_buffer_length = bytes_parsed; break; default: @@ -574,11 +416,12 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, /* * Large resource descriptors */ - header_length = sizeof(struct asl_large_header); - buffer = byte_stream_buffer + header_length; + header_length = + sizeof(struct aml_resource_large_header); + buffer = aml_buffer + header_length; switch (resource_type) { - case ACPI_RDESC_TYPE_LARGE_VENDOR: + case ACPI_RESOURCE_NAME_VENDOR_LARGE: /* * Vendor Defined Resource: * Add vendor data and ensure a 32-bit boundary for the structure @@ -587,8 +430,8 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, ACPI_ROUND_UP_to_32_bITS(resource_length); break; - case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE: - case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE: + case ACPI_RESOURCE_NAME_ADDRESS32: + case ACPI_RESOURCE_NAME_ADDRESS16: /* * 32-Bit or 16-bit Address Resource: * Add the size of any optional data (resource_source) @@ -596,10 +439,11 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, extra_struct_bytes = acpi_rs_stream_option_length (resource_length, - resource_info->minimum_stream_size); + resource_info-> + minimum_aml_resource_length); break; - case ACPI_RDESC_TYPE_EXTENDED_XRUPT: + case ACPI_RESOURCE_NAME_EXTENDED_IRQ: /* * Extended IRQ: * Point past the interrupt_vector_flags to get the @@ -622,10 +466,10 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, - extra_struct_bytes, resource_info-> - minimum_stream_size); + minimum_aml_resource_length); break; - case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE: + case ACPI_RESOURCE_NAME_ADDRESS64: /* * 64-Bit Address Resource: * Add the size of any optional data (resource_source) @@ -635,7 +479,8 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, ACPI_ROUND_UP_to_64_bITS (acpi_rs_stream_option_length (resource_length, - resource_info->minimum_stream_size)); + resource_info-> + minimum_aml_resource_length)); break; default: @@ -646,7 +491,7 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, /* Update the required buffer size for the internal descriptor structs */ temp16 = - (u16) (resource_info->minimum_struct_size + + (u16) (resource_info->minimum_internal_struct_length + extra_struct_bytes); buffer_size += (u32) ACPI_ALIGN_RESOURCE_SIZE(temp16); @@ -656,7 +501,7 @@ acpi_rs_get_list_length(u8 * byte_stream_buffer, */ temp16 = (u16) (header_length + resource_length); bytes_parsed += temp16; - byte_stream_buffer += temp16; + aml_buffer += temp16; } /* This is the data the caller needs */ @@ -758,8 +603,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, (*sub_object_list)->string. length + 1); } else { - temp_size_needed += - acpi_ns_get_pathname_length((*sub_object_list)->reference.node); + temp_size_needed += acpi_ns_get_pathname_length((*sub_object_list)->reference.node); } } else { /* diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c index 0911526b7ad8..6c7c6c560635 100644 --- a/drivers/acpi/resources/rscreate.c +++ b/drivers/acpi/resources/rscreate.c @@ -53,10 +53,10 @@ ACPI_MODULE_NAME("rscreate") * * FUNCTION: acpi_rs_create_resource_list * - * PARAMETERS: byte_stream_buffer - Pointer to the resource byte stream - * output_buffer - Pointer to the user's buffer + * PARAMETERS: aml_buffer - Pointer to the resource byte stream + * output_buffer - Pointer to the user's buffer * - * RETURN: Status - AE_OK if okay, else a valid acpi_status code + * RETURN: Status: AE_OK if okay, else a valid acpi_status code * If output_buffer is not large enough, output_buffer_length * indicates how large output_buffer should be, else it * indicates how may u8 elements of output_buffer are valid. @@ -67,33 +67,30 @@ ACPI_MODULE_NAME("rscreate") * ******************************************************************************/ acpi_status -acpi_rs_create_resource_list(union acpi_operand_object *byte_stream_buffer, +acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, struct acpi_buffer *output_buffer) { acpi_status status; - u8 *byte_stream_start; + u8 *aml_start; acpi_size list_size_needed = 0; - u32 byte_stream_buffer_length; + u32 aml_buffer_length; ACPI_FUNCTION_TRACE("rs_create_resource_list"); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "byte_stream_buffer = %p\n", - byte_stream_buffer)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_buffer = %p\n", aml_buffer)); /* Params already validated, so we don't re-validate here */ - byte_stream_buffer_length = byte_stream_buffer->buffer.length; - byte_stream_start = byte_stream_buffer->buffer.pointer; + aml_buffer_length = aml_buffer->buffer.length; + aml_start = aml_buffer->buffer.pointer; /* - * Pass the byte_stream_buffer into a module that can calculate + * Pass the aml_buffer into a module that can calculate * the buffer size needed for the linked list */ - status = - acpi_rs_get_list_length(byte_stream_start, - byte_stream_buffer_length, - &list_size_needed); + status = acpi_rs_get_list_length(aml_start, aml_buffer_length, + &list_size_needed); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X list_size_needed=%X\n", status, (u32) list_size_needed)); @@ -110,10 +107,8 @@ acpi_rs_create_resource_list(union acpi_operand_object *byte_stream_buffer, /* Do the conversion */ - status = - acpi_rs_byte_stream_to_list(byte_stream_start, - byte_stream_buffer_length, - output_buffer->pointer); + status = acpi_rs_convert_aml_to_resources(aml_start, aml_buffer_length, + output_buffer->pointer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -360,7 +355,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, /******************************************************************************* * - * FUNCTION: acpi_rs_create_byte_stream + * FUNCTION: acpi_rs_create_aml_resources * * PARAMETERS: linked_list_buffer - Pointer to the resource linked list * output_buffer - Pointer to the user's buffer @@ -377,13 +372,13 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, ******************************************************************************/ acpi_status -acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer, - struct acpi_buffer *output_buffer) +acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, + struct acpi_buffer *output_buffer) { acpi_status status; - acpi_size byte_stream_size_needed = 0; + acpi_size aml_size_needed = 0; - ACPI_FUNCTION_TRACE("rs_create_byte_stream"); + ACPI_FUNCTION_TRACE("rs_create_aml_resources"); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "linked_list_buffer = %p\n", linked_list_buffer)); @@ -394,11 +389,10 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer, * Pass the linked_list_buffer into a module that calculates * the buffer size needed for the byte stream. */ - status = acpi_rs_get_byte_stream_length(linked_list_buffer, - &byte_stream_size_needed); + status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "byte_stream_size_needed=%X, %s\n", - (u32) byte_stream_size_needed, + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_size_needed=%X, %s\n", + (u32) aml_size_needed, acpi_format_exception(status))); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -406,8 +400,7 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer, /* Validate/Allocate/Clear caller buffer */ - status = - acpi_ut_initialize_buffer(output_buffer, byte_stream_size_needed); + status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -415,9 +408,9 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer, /* Do the conversion */ status = - acpi_rs_list_to_byte_stream(linked_list_buffer, - byte_stream_size_needed, - output_buffer->pointer); + acpi_rs_convert_resources_to_aml(linked_list_buffer, + aml_size_needed, + output_buffer->pointer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } diff --git a/drivers/acpi/resources/rsdump.c b/drivers/acpi/resources/rsdump.c index 9d93ee5f0060..2f8990845b2d 100644 --- a/drivers/acpi/resources/rsdump.c +++ b/drivers/acpi/resources/rsdump.c @@ -49,38 +49,6 @@ ACPI_MODULE_NAME("rsdump") #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) /* Local prototypes */ -static void acpi_rs_dump_irq(union acpi_resource_data *resource); - -static void acpi_rs_dump_address16(union acpi_resource_data *resource); - -static void acpi_rs_dump_address32(union acpi_resource_data *resource); - -static void acpi_rs_dump_address64(union acpi_resource_data *resource); - -static void acpi_rs_dump_dma(union acpi_resource_data *resource); - -static void acpi_rs_dump_io(union acpi_resource_data *resource); - -static void acpi_rs_dump_extended_irq(union acpi_resource_data *resource); - -static void acpi_rs_dump_fixed_io(union acpi_resource_data *resource); - -static void acpi_rs_dump_fixed_memory32(union acpi_resource_data *resource); - -static void acpi_rs_dump_memory24(union acpi_resource_data *resource); - -static void acpi_rs_dump_memory32(union acpi_resource_data *resource); - -static void acpi_rs_dump_start_depend_fns(union acpi_resource_data *resource); - -static void acpi_rs_dump_vendor_specific(union acpi_resource_data *resource); - -static void acpi_rs_dump_generic_reg(union acpi_resource_data *resource); - -static void acpi_rs_dump_end_depend_fns(union acpi_resource_data *resource); - -static void acpi_rs_dump_end_tag(union acpi_resource_data *resource); - static void acpi_rs_out_string(char *title, char *value); static void acpi_rs_out_integer8(char *title, u8 value); @@ -104,30 +72,6 @@ acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source); static void acpi_rs_dump_address_common(union acpi_resource_data *resource); -/* Dispatch table for resource dump functions */ - -typedef -void (*ACPI_DUMP_RESOURCE) (union acpi_resource_data * data); - -static ACPI_DUMP_RESOURCE acpi_gbl_dump_resource_dispatch[] = { - acpi_rs_dump_irq, /* ACPI_RSTYPE_IRQ */ - acpi_rs_dump_dma, /* ACPI_RSTYPE_DMA */ - acpi_rs_dump_start_depend_fns, /* ACPI_RSTYPE_START_DPF */ - acpi_rs_dump_end_depend_fns, /* ACPI_RSTYPE_END_DPF */ - acpi_rs_dump_io, /* ACPI_RSTYPE_IO */ - acpi_rs_dump_fixed_io, /* ACPI_RSTYPE_FIXED_IO */ - acpi_rs_dump_vendor_specific, /* ACPI_RSTYPE_VENDOR */ - acpi_rs_dump_end_tag, /* ACPI_RSTYPE_END_TAG */ - acpi_rs_dump_memory24, /* ACPI_RSTYPE_MEM24 */ - acpi_rs_dump_memory32, /* ACPI_RSTYPE_MEM32 */ - acpi_rs_dump_fixed_memory32, /* ACPI_RSTYPE_FIXED_MEM32 */ - acpi_rs_dump_address16, /* ACPI_RSTYPE_ADDRESS16 */ - acpi_rs_dump_address32, /* ACPI_RSTYPE_ADDRESS32 */ - acpi_rs_dump_address64, /* ACPI_RSTYPE_ADDRESS64 */ - acpi_rs_dump_extended_irq, /* ACPI_RSTYPE_EXT_IRQ */ - acpi_rs_dump_generic_reg /* ACPI_RSTYPE_GENERIC_REG */ -}; - /******************************************************************************* * * FUNCTION: acpi_rs_out* @@ -144,32 +88,32 @@ static ACPI_DUMP_RESOURCE acpi_gbl_dump_resource_dispatch[] = { static void acpi_rs_out_string(char *title, char *value) { - acpi_os_printf("%30s : %s\n", title, value); + acpi_os_printf("%27s : %s\n", title, value); } static void acpi_rs_out_integer8(char *title, u8 value) { - acpi_os_printf("%30s : %2.2X\n", title, value); + acpi_os_printf("%27s : %2.2X\n", title, value); } static void acpi_rs_out_integer16(char *title, u16 value) { - acpi_os_printf("%30s : %4.4X\n", title, value); + acpi_os_printf("%27s : %4.4X\n", title, value); } static void acpi_rs_out_integer32(char *title, u32 value) { - acpi_os_printf("%30s : %8.8X\n", title, value); + acpi_os_printf("%27s : %8.8X\n", title, value); } static void acpi_rs_out_integer64(char *title, u64 value) { - acpi_os_printf("%30s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value)); + acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value)); } static void acpi_rs_out_title(char *title) { - acpi_os_printf("%30s : ", title); + acpi_os_printf("%27s : ", title); } /******************************************************************************* @@ -190,7 +134,7 @@ static void acpi_rs_dump_byte_list(u32 length, u8 * data) u32 i; for (i = 0; i < length; i++) { - acpi_os_printf("%28s%2.2X : %2.2X\n", "Byte", i, data[i]); + acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]); } } @@ -199,7 +143,7 @@ static void acpi_rs_dump_dword_list(u32 length, u32 * data) u32 i; for (i = 0; i < length; i++) { - acpi_os_printf("%28s%2.2X : %8.8X\n", "Dword", i, data[i]); + acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]); } } @@ -213,6 +157,14 @@ static void acpi_rs_dump_short_byte_list(u32 length, u32 * data) acpi_os_printf("\n"); } +static void acpi_rs_dump_memory_attribute(u32 read_write_attribute) +{ + + acpi_rs_out_string("Read/Write Attribute", + ACPI_READ_WRITE_MEMORY == read_write_attribute ? + "Read/Write" : "Read-Only"); +} + /******************************************************************************* * * FUNCTION: acpi_rs_dump_resource_source @@ -229,6 +181,7 @@ static void acpi_rs_dump_short_byte_list(u32 length, u32 * data) static void acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source) { + ACPI_FUNCTION_ENTRY(); if (resource_source->index == 0xFF) { return; @@ -290,11 +243,8 @@ static void acpi_rs_dump_address_common(union acpi_resource_data *resource) break; } - acpi_rs_out_string("Read/Write Attribute", - ACPI_READ_WRITE_MEMORY == - resource->address.attribute.memory. - read_write_attribute ? "Read/Write" : - "Read Only"); + acpi_rs_dump_memory_attribute(resource->address.attribute. + memory.read_write_attribute); break; case ACPI_IO_RANGE: @@ -392,7 +342,7 @@ void acpi_rs_dump_resource_list(struct acpi_resource *resource_list) /* Validate Type before dispatch */ - if (resource_list->type > ACPI_RSTYPE_MAX) { + if (resource_list->type > ACPI_RESOURCE_TYPE_MAX) { acpi_os_printf ("Invalid descriptor type (%X) in resource list\n", resource_list->type); @@ -406,7 +356,7 @@ void acpi_rs_dump_resource_list(struct acpi_resource *resource_list) /* Exit on end tag */ - if (resource_list->type == ACPI_RSTYPE_END_TAG) { + if (resource_list->type == ACPI_RESOURCE_TYPE_END_TAG) { return; } @@ -431,7 +381,7 @@ void acpi_rs_dump_resource_list(struct acpi_resource *resource_list) * ******************************************************************************/ -static void acpi_rs_dump_irq(union acpi_resource_data *resource) +void acpi_rs_dump_irq(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); @@ -439,22 +389,21 @@ static void acpi_rs_dump_irq(union acpi_resource_data *resource) acpi_rs_out_string("Triggering", ACPI_LEVEL_SENSITIVE == - resource->irq.edge_level ? "Level" : "Edge"); + resource->irq.triggering ? "Level" : "Edge"); acpi_rs_out_string("Active", ACPI_ACTIVE_LOW == - resource->irq.active_high_low ? "Low" : "High"); + resource->irq.polarity ? "Low" : "High"); acpi_rs_out_string("Sharing", ACPI_SHARED == - resource->irq. - shared_exclusive ? "Shared" : "Exclusive"); + resource->irq.sharable ? "Shared" : "Exclusive"); acpi_rs_out_integer8("Interrupt Count", - (u8) resource->irq.number_of_interrupts); + (u8) resource->irq.interrupt_count); acpi_rs_out_title("Interrupt List"); - acpi_rs_dump_short_byte_list(resource->irq.number_of_interrupts, + acpi_rs_dump_short_byte_list(resource->irq.interrupt_count, resource->irq.interrupts); } @@ -470,7 +419,7 @@ static void acpi_rs_dump_irq(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_dma(union acpi_resource_data *resource) +void acpi_rs_dump_dma(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); @@ -523,16 +472,16 @@ static void acpi_rs_dump_dma(union acpi_resource_data *resource) } acpi_rs_out_integer8("DMA Channel Count", - (u8) resource->dma.number_of_channels); + (u8) resource->dma.channel_count); acpi_rs_out_title("Channel List"); - acpi_rs_dump_short_byte_list(resource->dma.number_of_channels, + acpi_rs_dump_short_byte_list(resource->dma.channel_count, resource->dma.channels); } /******************************************************************************* * - * FUNCTION: acpi_rs_dump_start_depend_fns + * FUNCTION: acpi_rs_dump_start_dpf * * PARAMETERS: Resource - Pointer to an internal resource descriptor * @@ -542,7 +491,7 @@ static void acpi_rs_dump_dma(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_start_depend_fns(union acpi_resource_data *resource) +void acpi_rs_dump_start_dpf(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); @@ -600,7 +549,7 @@ static void acpi_rs_dump_start_depend_fns(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_io(union acpi_resource_data *resource) +void acpi_rs_dump_io(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); @@ -610,15 +559,13 @@ static void acpi_rs_dump_io(union acpi_resource_data *resource) ACPI_DECODE_16 == resource->io.io_decode ? "16-bit" : "10-bit"); - acpi_rs_out_integer32("Range Minimum Base", - resource->io.min_base_address); + acpi_rs_out_integer32("Address Minimum", resource->io.minimum); - acpi_rs_out_integer32("Range Maximum Base", - resource->io.max_base_address); + acpi_rs_out_integer32("Address Maximum", resource->io.maximum); acpi_rs_out_integer32("Alignment", resource->io.alignment); - acpi_rs_out_integer32("Range Length", resource->io.range_length); + acpi_rs_out_integer32("Address Length", resource->io.address_length); } /******************************************************************************* @@ -633,21 +580,21 @@ static void acpi_rs_dump_io(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_fixed_io(union acpi_resource_data *resource) +void acpi_rs_dump_fixed_io(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); acpi_os_printf("Fixed I/O Resource\n"); - acpi_rs_out_integer32("Range Base Address", - resource->fixed_io.base_address); + acpi_rs_out_integer32("Address", resource->fixed_io.address); - acpi_rs_out_integer32("Range Length", resource->fixed_io.range_length); + acpi_rs_out_integer32("Address Length", + resource->fixed_io.address_length); } /******************************************************************************* * - * FUNCTION: acpi_rs_dump_vendor_specific + * FUNCTION: acpi_rs_dump_vendor * * PARAMETERS: Resource - Pointer to an internal resource descriptor * @@ -657,16 +604,16 @@ static void acpi_rs_dump_fixed_io(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_vendor_specific(union acpi_resource_data *resource) +void acpi_rs_dump_vendor(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); acpi_os_printf("Vendor Specific Resource\n"); - acpi_rs_out_integer16("Length", (u16) resource->vendor_specific.length); + acpi_rs_out_integer16("Length", (u16) resource->vendor.byte_length); - acpi_rs_dump_byte_list(resource->vendor_specific.length, - resource->vendor_specific.reserved); + acpi_rs_dump_byte_list(resource->vendor.byte_length, + resource->vendor.byte_data); } /******************************************************************************* @@ -681,27 +628,24 @@ static void acpi_rs_dump_vendor_specific(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_memory24(union acpi_resource_data *resource) +void acpi_rs_dump_memory24(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); acpi_os_printf("24-Bit Memory Range Resource\n"); - acpi_rs_out_string("Attribute", - ACPI_READ_WRITE_MEMORY == - resource->memory24.read_write_attribute ? - "Read/Write" : "Read Only"); + acpi_rs_dump_memory_attribute(resource->memory24.read_write_attribute); - acpi_rs_out_integer16("Range Minimum Base", - (u16) resource->memory24.min_base_address); + acpi_rs_out_integer16("Address Minimum", + (u16) resource->memory24.minimum); - acpi_rs_out_integer16("Range Maximum Base", - (u16) resource->memory24.max_base_address); + acpi_rs_out_integer16("Address Maximum", + (u16) resource->memory24.maximum); acpi_rs_out_integer16("Alignment", (u16) resource->memory24.alignment); - acpi_rs_out_integer16("Range Length", - (u16) resource->memory24.range_length); + acpi_rs_out_integer16("Address Length", + (u16) resource->memory24.address_length); } /******************************************************************************* @@ -716,26 +660,22 @@ static void acpi_rs_dump_memory24(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_memory32(union acpi_resource_data *resource) +void acpi_rs_dump_memory32(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); acpi_os_printf("32-Bit Memory Range Resource\n"); - acpi_rs_out_string("Attribute", - ACPI_READ_WRITE_MEMORY == - resource->memory32.read_write_attribute ? - "Read/Write" : "Read Only"); + acpi_rs_dump_memory_attribute(resource->memory32.read_write_attribute); - acpi_rs_out_integer32("Range Minimum Base", - resource->memory32.min_base_address); + acpi_rs_out_integer32("Address Minimum", resource->memory32.minimum); - acpi_rs_out_integer32("Range Maximum Base", - resource->memory32.max_base_address); + acpi_rs_out_integer32("Address Maximum", resource->memory32.maximum); acpi_rs_out_integer32("Alignment", resource->memory32.alignment); - acpi_rs_out_integer32("Range Length", resource->memory32.range_length); + acpi_rs_out_integer32("Address Length", + resource->memory32.address_length); } /******************************************************************************* @@ -750,22 +690,19 @@ static void acpi_rs_dump_memory32(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_fixed_memory32(union acpi_resource_data *resource) +void acpi_rs_dump_fixed_memory32(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); acpi_os_printf("32-Bit Fixed Location Memory Range Resource\n"); - acpi_rs_out_string("Attribute", - ACPI_READ_WRITE_MEMORY == - resource->fixed_memory32.read_write_attribute ? - "Read/Write" : "Read Only"); + acpi_rs_dump_memory_attribute(resource->fixed_memory32. + read_write_attribute); - acpi_rs_out_integer32("Range Base Address", - resource->fixed_memory32.range_base_address); + acpi_rs_out_integer32("Address", resource->fixed_memory32.address); - acpi_rs_out_integer32("Range Length", - resource->fixed_memory32.range_length); + acpi_rs_out_integer32("Address Length", + resource->fixed_memory32.address_length); } /******************************************************************************* @@ -780,26 +717,25 @@ static void acpi_rs_dump_fixed_memory32(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_address16(union acpi_resource_data *resource) +void acpi_rs_dump_address16(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); - acpi_os_printf("16-Bit Address Space Resource\n"); + acpi_os_printf("16-Bit WORD Address Space Resource\n"); acpi_rs_dump_address_common(resource); acpi_rs_out_integer16("Granularity", (u16) resource->address16.granularity); - acpi_rs_out_integer16("Address Range Min", - (u16) resource->address16.min_address_range); + acpi_rs_out_integer16("Address Minimum", + (u16) resource->address16.minimum); - acpi_rs_out_integer16("Address Range Max", - (u16) resource->address16.max_address_range); + acpi_rs_out_integer16("Address Maximum", + (u16) resource->address16.maximum); - acpi_rs_out_integer16("Address Translation Offset", - (u16) resource->address16. - address_translation_offset); + acpi_rs_out_integer16("Translation Offset", + (u16) resource->address16.translation_offset); acpi_rs_out_integer16("Address Length", (u16) resource->address16.address_length); @@ -819,24 +755,22 @@ static void acpi_rs_dump_address16(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_address32(union acpi_resource_data *resource) +void acpi_rs_dump_address32(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); - acpi_os_printf("32-Bit Address Space Resource\n"); + acpi_os_printf("32-Bit DWORD Address Space Resource\n"); acpi_rs_dump_address_common(resource); acpi_rs_out_integer32("Granularity", resource->address32.granularity); - acpi_rs_out_integer32("Address Range Min", - resource->address32.min_address_range); + acpi_rs_out_integer32("Address Minimum", resource->address32.minimum); - acpi_rs_out_integer32("Address Range Max", - resource->address32.max_address_range); + acpi_rs_out_integer32("Address Maximum", resource->address32.maximum); - acpi_rs_out_integer32("Address Translation Offset", - resource->address32.address_translation_offset); + acpi_rs_out_integer32("Translation Offset", + resource->address32.translation_offset); acpi_rs_out_integer32("Address Length", resource->address32.address_length); @@ -856,37 +790,32 @@ static void acpi_rs_dump_address32(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_address64(union acpi_resource_data *resource) +void acpi_rs_dump_address64(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); - acpi_os_printf("64-Bit Address Space Resource\n"); + acpi_os_printf("64-Bit QWORD Address Space Resource\n"); acpi_rs_dump_address_common(resource); acpi_rs_out_integer64("Granularity", resource->address64.granularity); - acpi_rs_out_integer64("Address Range Min", - resource->address64.min_address_range); + acpi_rs_out_integer64("Address Minimum", resource->address64.minimum); - acpi_rs_out_integer64("Address Range Max", - resource->address64.max_address_range); + acpi_rs_out_integer64("Address Maximum", resource->address64.maximum); - acpi_rs_out_integer64("Address Translation Offset", - resource->address64.address_translation_offset); + acpi_rs_out_integer64("Translation Offset", + resource->address64.translation_offset); acpi_rs_out_integer64("Address Length", resource->address64.address_length); - acpi_rs_out_integer64("Type Specific Attributes", - resource->address64.type_specific_attributes); - acpi_rs_dump_resource_source(&resource->address64.resource_source); } /******************************************************************************* * - * FUNCTION: acpi_rs_dump_extended_irq + * FUNCTION: acpi_rs_dump_ext_address64 * * PARAMETERS: Resource - Pointer to an internal resource descriptor * @@ -896,7 +825,46 @@ static void acpi_rs_dump_address64(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_extended_irq(union acpi_resource_data *resource) +void acpi_rs_dump_ext_address64(union acpi_resource_data *resource) +{ + ACPI_FUNCTION_ENTRY(); + + acpi_os_printf("64-Bit Extended Address Space Resource\n"); + + acpi_rs_dump_address_common(resource); + + acpi_rs_out_integer64("Granularity", + resource->ext_address64.granularity); + + acpi_rs_out_integer64("Address Minimum", + resource->ext_address64.minimum); + + acpi_rs_out_integer64("Address Maximum", + resource->ext_address64.maximum); + + acpi_rs_out_integer64("Translation Offset", + resource->ext_address64.translation_offset); + + acpi_rs_out_integer64("Address Length", + resource->ext_address64.address_length); + + acpi_rs_out_integer64("Type-Specific Attribute", + resource->ext_address64.type_specific_attributes); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_dump_ext_irq + * + * PARAMETERS: Resource - Pointer to an internal resource descriptor + * + * RETURN: None + * + * DESCRIPTION: Dump the field names and values of the resource descriptor + * + ******************************************************************************/ + +void acpi_rs_dump_ext_irq(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); @@ -910,24 +878,22 @@ static void acpi_rs_dump_extended_irq(union acpi_resource_data *resource) acpi_rs_out_string("Triggering", ACPI_LEVEL_SENSITIVE == resource->extended_irq. - edge_level ? "Level" : "Edge"); + triggering ? "Level" : "Edge"); acpi_rs_out_string("Active", - ACPI_ACTIVE_LOW == - resource->extended_irq. - active_high_low ? "Low" : "High"); + ACPI_ACTIVE_LOW == resource->extended_irq.polarity ? + "Low" : "High"); acpi_rs_out_string("Sharing", - ACPI_SHARED == - resource->extended_irq. - shared_exclusive ? "Shared" : "Exclusive"); + ACPI_SHARED == resource->extended_irq.sharable ? + "Shared" : "Exclusive"); acpi_rs_dump_resource_source(&resource->extended_irq.resource_source); acpi_rs_out_integer8("Interrupts", - (u8) resource->extended_irq.number_of_interrupts); + (u8) resource->extended_irq.interrupt_count); - acpi_rs_dump_dword_list(resource->extended_irq.number_of_interrupts, + acpi_rs_dump_dword_list(resource->extended_irq.interrupt_count, resource->extended_irq.interrupts); } @@ -943,9 +909,8 @@ static void acpi_rs_dump_extended_irq(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_generic_reg(union acpi_resource_data *resource) +void acpi_rs_dump_generic_reg(union acpi_resource_data *resource) { - ACPI_FUNCTION_ENTRY(); acpi_os_printf("Generic Register Resource\n"); @@ -957,15 +922,15 @@ static void acpi_rs_dump_generic_reg(union acpi_resource_data *resource) acpi_rs_out_integer8("Bit Offset", (u8) resource->generic_reg.bit_offset); - acpi_rs_out_integer8("Address Size", - (u8) resource->generic_reg.address_size); + acpi_rs_out_integer8("Access Size", + (u8) resource->generic_reg.access_size); acpi_rs_out_integer64("Address", resource->generic_reg.address); } /******************************************************************************* * - * FUNCTION: acpi_rs_dump_end_depend_fns + * FUNCTION: acpi_rs_dump_end_dpf * * PARAMETERS: Resource - Pointer to an internal resource descriptor * @@ -975,7 +940,7 @@ static void acpi_rs_dump_generic_reg(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_end_depend_fns(union acpi_resource_data *resource) +void acpi_rs_dump_end_dpf(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); @@ -994,7 +959,7 @@ static void acpi_rs_dump_end_depend_fns(union acpi_resource_data *resource) * ******************************************************************************/ -static void acpi_rs_dump_end_tag(union acpi_resource_data *resource) +void acpi_rs_dump_end_tag(union acpi_resource_data *resource) { ACPI_FUNCTION_ENTRY(); diff --git a/drivers/acpi/resources/rsinfo.c b/drivers/acpi/resources/rsinfo.c index 49a5f81c727b..b31cb33ec565 100644 --- a/drivers/acpi/resources/rsinfo.c +++ b/drivers/acpi/resources/rsinfo.c @@ -207,7 +207,7 @@ struct acpi_resource_info acpi_gbl_lg_resource_info[] = { {0, ACPI_RLARGE(struct aml_resource_memory24), ACPI_SIZEOF_RESOURCE(struct acpi_resource_memory24)}, {0, ACPI_RLARGE(struct aml_resource_generic_register), - ACPI_SIZEOF_RESOURCE(struct acpi_resource_generic_registerister)}, + ACPI_SIZEOF_RESOURCE(struct acpi_resource_generic_register)}, {0, 0, 0}, {1, ACPI_RLARGE(struct aml_resource_vendor_large), ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor)}, diff --git a/drivers/acpi/resources/rsio.c b/drivers/acpi/resources/rsio.c index 6574e2ae2e52..0dab8cdfa800 100644 --- a/drivers/acpi/resources/rsio.c +++ b/drivers/acpi/resources/rsio.c @@ -49,426 +49,269 @@ ACPI_MODULE_NAME("rsio") /******************************************************************************* * - * FUNCTION: acpi_rs_io_resource + * FUNCTION: acpi_rs_get_io * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_io_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_io(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - acpi_size struct_size = ACPI_SIZEOF_RESOURCE(struct acpi_resource_io); + ACPI_FUNCTION_TRACE("rs_get_io"); - ACPI_FUNCTION_TRACE("rs_io_resource"); + /* Get the Decode flag */ - /* The number of bytes consumed are Constant */ + resource->data.io.io_decode = aml->io.information & 0x01; - *bytes_consumed = 8; + /* + * Get the following contiguous fields from the AML descriptor: + * Minimum Base Address + * Maximum Base Address + * Address Alignment + * Length + */ + ACPI_MOVE_16_TO_32(&resource->data.io.minimum, &aml->io.minimum); + ACPI_MOVE_16_TO_32(&resource->data.io.maximum, &aml->io.maximum); + resource->data.io.alignment = aml->io.alignment; + resource->data.io.address_length = aml->io.address_length; - output_struct->type = ACPI_RSTYPE_IO; + /* Complete the resource header */ - /* Check Decode */ - - buffer += 1; - temp8 = *buffer; - - output_struct->data.io.io_decode = temp8 & 0x01; - - /* Check min_base Address */ - - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); - - output_struct->data.io.min_base_address = temp16; - - /* Check max_base Address */ - - buffer += 2; - ACPI_MOVE_16_TO_16(&temp16, buffer); - - output_struct->data.io.max_base_address = temp16; - - /* Check Base alignment */ - - buffer += 2; - temp8 = *buffer; - - output_struct->data.io.alignment = temp8; - - /* Check range_length */ - - buffer += 1; - temp8 = *buffer; - - output_struct->data.io.range_length = temp8; - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_IO; + resource->length = ACPI_SIZEOF_RESOURCE(struct acpi_resource_io); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_fixed_io_resource + * FUNCTION: acpi_rs_set_io * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_fixed_io_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_set_io(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_io); - - ACPI_FUNCTION_TRACE("rs_fixed_io_resource"); + ACPI_FUNCTION_TRACE("rs_set_io"); - /* The number of bytes consumed are Constant */ + /* I/O Information Byte */ - *bytes_consumed = 4; + aml->io.information = (u8) (resource->data.io.io_decode & 0x01); - output_struct->type = ACPI_RSTYPE_FIXED_IO; + /* + * Set the following contiguous fields in the AML descriptor: + * Minimum Base Address + * Maximum Base Address + * Address Alignment + * Length + */ + ACPI_MOVE_32_TO_16(&aml->io.minimum, &resource->data.io.minimum); + ACPI_MOVE_32_TO_16(&aml->io.maximum, &resource->data.io.maximum); + aml->io.alignment = (u8) resource->data.io.alignment; + aml->io.address_length = (u8) resource->data.io.address_length; - /* Check Range Base Address */ + /* Complete the AML descriptor header */ - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); - - output_struct->data.fixed_io.base_address = temp16; - - /* Check range_length */ - - buffer += 2; - temp8 = *buffer; - - output_struct->data.fixed_io.range_length = temp8; - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_IO, + sizeof(struct aml_resource_io), aml); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_io_stream + * FUNCTION: acpi_rs_get_fixed_io * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_io_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_get_fixed_io(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - - ACPI_FUNCTION_TRACE("rs_io_stream"); - - /* The Descriptor Type field is static */ - - *buffer = ACPI_RDESC_TYPE_IO_PORT | 0x07; - buffer += 1; - - /* Io Information Byte */ - - temp8 = (u8) (resource->data.io.io_decode & 0x01); - - *buffer = temp8; - buffer += 1; - - /* Set the Range minimum base address */ - - temp16 = (u16) resource->data.io.min_base_address; - - ACPI_MOVE_16_TO_16(buffer, &temp16); - buffer += 2; - - /* Set the Range maximum base address */ + ACPI_FUNCTION_TRACE("rs_get_fixed_io"); - temp16 = (u16) resource->data.io.max_base_address; + /* + * Get the following contiguous fields from the AML descriptor: + * Base Address + * Length + */ + ACPI_MOVE_16_TO_32(&resource->data.fixed_io.address, + &aml->fixed_io.address); + resource->data.fixed_io.address_length = aml->fixed_io.address_length; - ACPI_MOVE_16_TO_16(buffer, &temp16); - buffer += 2; + /* Complete the resource header */ - /* Set the base alignment */ - - temp8 = (u8) resource->data.io.alignment; - - *buffer = temp8; - buffer += 1; - - /* Set the range length */ - - temp8 = (u8) resource->data.io.range_length; - - *buffer = temp8; - buffer += 1; - - /* Return the number of bytes consumed in this operation */ - - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + resource->type = ACPI_RESOURCE_TYPE_FIXED_IO; + resource->length = ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_io); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_fixed_io_stream + * FUNCTION: acpi_rs_set_fixed_io * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_fixed_io_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_fixed_io(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - - ACPI_FUNCTION_TRACE("rs_fixed_io_stream"); - - /* The Descriptor Type field is static */ - - *buffer = ACPI_RDESC_TYPE_FIXED_IO_PORT | 0x03; - buffer += 1; - - /* Set the Range base address */ - - temp16 = (u16) resource->data.fixed_io.base_address; - - ACPI_MOVE_16_TO_16(buffer, &temp16); - buffer += 2; - - /* Set the range length */ - - temp8 = (u8) resource->data.fixed_io.range_length; - - *buffer = temp8; - buffer += 1; - - /* Return the number of bytes consumed in this operation */ - - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + ACPI_FUNCTION_TRACE("rs_set_fixed_io"); + + /* + * Set the following contiguous fields in the AML descriptor: + * Base Address + * Length + */ + ACPI_MOVE_32_TO_16(&aml->fixed_io.address, + &resource->data.fixed_io.address); + aml->fixed_io.address_length = + (u8) resource->data.fixed_io.address_length; + + /* Complete the AML descriptor header */ + + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_FIXED_IO, + sizeof(struct aml_resource_fixed_io), aml); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_dma_resource + * FUNCTION: acpi_rs_get_dma * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_dma_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_dma(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u8 temp8 = 0; - u8 index; - u8 i; - acpi_size struct_size = ACPI_SIZEOF_RESOURCE(struct acpi_resource_dma); + u32 channel_count = 0; + u32 i; + u8 temp8; - ACPI_FUNCTION_TRACE("rs_dma_resource"); - - /* The number of bytes consumed are Constant */ - - *bytes_consumed = 3; - output_struct->type = ACPI_RSTYPE_DMA; - - /* Point to the 8-bits of Byte 1 */ - - buffer += 1; - temp8 = *buffer; + ACPI_FUNCTION_TRACE("rs_get_dma"); /* Decode the DMA channel bits */ - for (i = 0, index = 0; index < 8; index++) { - if ((temp8 >> index) & 0x01) { - output_struct->data.dma.channels[i] = index; - i++; + for (i = 0; i < 8; i++) { + if ((aml->dma.dma_channel_mask >> i) & 0x01) { + resource->data.dma.channels[channel_count] = i; + channel_count++; } } - /* Zero DMA channels is valid */ - - output_struct->data.dma.number_of_channels = i; - if (i > 0) { - /* Calculate the structure size based upon the number of interrupts */ + resource->length = 0; + resource->data.dma.channel_count = channel_count; - struct_size += ((acpi_size) i - 1) * 4; + /* + * Calculate the structure size based upon the number of channels + * Note: Zero DMA channels is valid + */ + if (channel_count > 0) { + resource->length = (u32) (channel_count - 1) * 4; } - /* Point to Byte 2 */ + /* Get the flags: transfer preference, bus mastering, channel speed */ - buffer += 1; - temp8 = *buffer; + temp8 = aml->dma.flags; + resource->data.dma.transfer = temp8 & 0x03; + resource->data.dma.bus_master = (temp8 >> 2) & 0x01; + resource->data.dma.type = (temp8 >> 5) & 0x03; - /* Check for transfer preference (Bits[1:0]) */ - - output_struct->data.dma.transfer = temp8 & 0x03; - - if (0x03 == output_struct->data.dma.transfer) { + if (resource->data.dma.transfer == 0x03) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid DMA.Transfer preference (3)\n")); return_ACPI_STATUS(AE_BAD_DATA); } - /* Get bus master preference (Bit[2]) */ - - output_struct->data.dma.bus_master = (temp8 >> 2) & 0x01; - - /* Get channel speed support (Bits[6:5]) */ + /* Complete the resource header */ - output_struct->data.dma.type = (temp8 >> 5) & 0x03; - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_DMA; + resource->length += ACPI_SIZEOF_RESOURCE(struct acpi_resource_dma); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_dma_stream + * FUNCTION: acpi_rs_set_dma * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_dma_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_dma(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - u8 index; - - ACPI_FUNCTION_TRACE("rs_dma_stream"); - - /* The Descriptor Type field is static */ + u8 i; - *buffer = ACPI_RDESC_TYPE_DMA_FORMAT | 0x02; - buffer += 1; - temp8 = 0; + ACPI_FUNCTION_TRACE("rs_set_dma"); - /* Loop through all of the Channels and set the mask bits */ + /* Convert channel list to 8-bit DMA channel bitmask */ - for (index = 0; index < resource->data.dma.number_of_channels; index++) { - temp16 = (u16) resource->data.dma.channels[index]; - temp8 |= 0x1 << temp16; + aml->dma.dma_channel_mask = 0; + for (i = 0; i < resource->data.dma.channel_count; i++) { + aml->dma.dma_channel_mask |= + (1 << resource->data.dma.channels[i]); } - *buffer = temp8; - buffer += 1; - - /* Set the DMA Info */ - - temp8 = (u8) ((resource->data.dma.type & 0x03) << 5); - temp8 |= ((resource->data.dma.bus_master & 0x01) << 2); - temp8 |= (resource->data.dma.transfer & 0x03); + /* Set the DMA Flag bits */ - *buffer = temp8; - buffer += 1; + aml->dma.flags = (u8) + (((resource->data.dma.type & 0x03) << 5) | + ((resource->data.dma.bus_master & 0x01) << 2) | + (resource->data.dma.transfer & 0x03)); - /* Return the number of bytes consumed in this operation */ + /* Complete the AML descriptor header */ - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_DMA, + sizeof(struct aml_resource_dma), aml); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/resources/rsirq.c b/drivers/acpi/resources/rsirq.c index 75df962115cc..4e854ba70811 100644 --- a/drivers/acpi/resources/rsirq.c +++ b/drivers/acpi/resources/rsirq.c @@ -49,93 +49,67 @@ ACPI_MODULE_NAME("rsirq") /******************************************************************************* * - * FUNCTION: acpi_rs_irq_resource + * FUNCTION: acpi_rs_get_irq * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_irq_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_irq(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; u16 temp16 = 0; - u8 temp8 = 0; - u8 index; - u8 i; - acpi_size struct_size = ACPI_SIZEOF_RESOURCE(struct acpi_resource_irq); - - ACPI_FUNCTION_TRACE("rs_irq_resource"); - - /* - * The number of bytes consumed are contained in the descriptor - * (Bits:0-1) - */ - temp8 = *buffer; - *bytes_consumed = (temp8 & 0x03) + 1; - output_struct->type = ACPI_RSTYPE_IRQ; + u32 interrupt_count = 0; + u32 i; + u32 resource_length; - /* Point to the 16-bits of Bytes 1 and 2 */ + ACPI_FUNCTION_TRACE("rs_get_irq"); - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); + /* Get the IRQ mask (bytes 1:2) */ - output_struct->data.irq.number_of_interrupts = 0; + ACPI_MOVE_16_TO_16(&temp16, &aml->irq.irq_mask); - /* Decode the IRQ bits */ + /* Decode the IRQ bits (up to 16 possible) */ - for (i = 0, index = 0; index < 16; index++) { - if ((temp16 >> index) & 0x01) { - output_struct->data.irq.interrupts[i] = index; - i++; + for (i = 0; i < 16; i++) { + if ((temp16 >> i) & 0x01) { + resource->data.irq.interrupts[interrupt_count] = i; + interrupt_count++; } } /* Zero interrupts is valid */ - output_struct->data.irq.number_of_interrupts = i; - if (i > 0) { + resource_length = 0; + resource->data.irq.interrupt_count = interrupt_count; + if (interrupt_count > 0) { /* Calculate the structure size based upon the number of interrupts */ - struct_size += ((acpi_size) i - 1) * 4; + resource_length = (u32) (interrupt_count - 1) * 4; } - /* Point to Byte 3 if it is used */ - - if (4 == *bytes_consumed) { - buffer += 2; - temp8 = *buffer; + /* Get Flags (Byte 3) if it is used */ + if (aml_resource_length == 3) { /* Check for HE, LL interrupts */ - switch (temp8 & 0x09) { + switch (aml->irq.flags & 0x09) { case 0x01: /* HE */ - output_struct->data.irq.edge_level = - ACPI_EDGE_SENSITIVE; - output_struct->data.irq.active_high_low = - ACPI_ACTIVE_HIGH; + resource->data.irq.triggering = ACPI_EDGE_SENSITIVE; + resource->data.irq.polarity = ACPI_ACTIVE_HIGH; break; case 0x08: /* LL */ - output_struct->data.irq.edge_level = - ACPI_LEVEL_SENSITIVE; - output_struct->data.irq.active_high_low = - ACPI_ACTIVE_LOW; + resource->data.irq.triggering = ACPI_LEVEL_SENSITIVE; + resource->data.irq.polarity = ACPI_ACTIVE_LOW; break; default: @@ -146,170 +120,131 @@ acpi_rs_irq_resource(u8 * byte_stream_buffer, */ ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid interrupt polarity/trigger in resource list, %X\n", - temp8)); + aml->irq.flags)); return_ACPI_STATUS(AE_BAD_DATA); } - /* Check for sharable */ + /* Get Sharing flag */ - output_struct->data.irq.shared_exclusive = (temp8 >> 3) & 0x01; + resource->data.irq.sharable = (aml->irq.flags >> 3) & 0x01; } else { /* - * Assume Edge Sensitive, Active High, Non-Sharable - * per ACPI Specification + * Default configuration: assume Edge Sensitive, Active High, + * Non-Sharable as per the ACPI Specification */ - output_struct->data.irq.edge_level = ACPI_EDGE_SENSITIVE; - output_struct->data.irq.active_high_low = ACPI_ACTIVE_HIGH; - output_struct->data.irq.shared_exclusive = ACPI_EXCLUSIVE; + resource->data.irq.triggering = ACPI_EDGE_SENSITIVE; + resource->data.irq.polarity = ACPI_ACTIVE_HIGH; + resource->data.irq.sharable = ACPI_EXCLUSIVE; } - /* Set the Length parameter */ + /* Complete the resource header */ - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_IRQ; + resource->length = + resource_length + ACPI_SIZEOF_RESOURCE(struct acpi_resource_irq); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_irq_stream + * FUNCTION: acpi_rs_set_irq * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_irq_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_irq(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - u8 index; - u8 IRqinfo_byte_needed; + acpi_size descriptor_length; + u16 irq_mask; + u8 i; + + ACPI_FUNCTION_TRACE("rs_set_irq"); - ACPI_FUNCTION_TRACE("rs_irq_stream"); + /* Convert interrupt list to 16-bit IRQ bitmask */ + + irq_mask = 0; + for (i = 0; i < resource->data.irq.interrupt_count; i++) { + irq_mask |= (1 << resource->data.irq.interrupts[i]); + } + + /* Set the interrupt mask */ + + ACPI_MOVE_16_TO_16(&aml->irq.irq_mask, &irq_mask); /* * The descriptor field is set based upon whether a third byte is * needed to contain the IRQ Information. */ - if (ACPI_EDGE_SENSITIVE == resource->data.irq.edge_level && - ACPI_ACTIVE_HIGH == resource->data.irq.active_high_low && - ACPI_EXCLUSIVE == resource->data.irq.shared_exclusive) { - *buffer = ACPI_RDESC_TYPE_IRQ_FORMAT | 0x02; - IRqinfo_byte_needed = FALSE; - } else { - *buffer = ACPI_RDESC_TYPE_IRQ_FORMAT | 0x03; - IRqinfo_byte_needed = TRUE; - } - - buffer += 1; - temp16 = 0; - - /* Loop through all of the interrupts and set the mask bits */ + if ((resource->data.irq.triggering == ACPI_EDGE_SENSITIVE) && + (resource->data.irq.polarity == ACPI_ACTIVE_HIGH) && + (resource->data.irq.sharable == ACPI_EXCLUSIVE)) { + /* irq_no_flags() descriptor can be used */ - for (index = 0; - index < resource->data.irq.number_of_interrupts; index++) { - temp8 = (u8) resource->data.irq.interrupts[index]; - temp16 |= 0x1 << temp8; - } + descriptor_length = sizeof(struct aml_resource_irq_noflags); + } else { + /* Irq() descriptor must be used */ - ACPI_MOVE_16_TO_16(buffer, &temp16); - buffer += 2; + descriptor_length = sizeof(struct aml_resource_irq); - /* Set the IRQ Info byte if needed. */ + /* Set the IRQ Info byte */ - if (IRqinfo_byte_needed) { - temp8 = 0; - temp8 = (u8) ((resource->data.irq.shared_exclusive & - 0x01) << 4); + aml->irq.flags = (u8) + ((resource->data.irq.sharable & 0x01) << 4); - if (ACPI_LEVEL_SENSITIVE == resource->data.irq.edge_level && - ACPI_ACTIVE_LOW == resource->data.irq.active_high_low) { - temp8 |= 0x08; + if (ACPI_LEVEL_SENSITIVE == resource->data.irq.triggering && + ACPI_ACTIVE_LOW == resource->data.irq.polarity) { + aml->irq.flags |= 0x08; } else { - temp8 |= 0x01; + aml->irq.flags |= 0x01; } - - *buffer = temp8; - buffer += 1; } - /* Return the number of bytes consumed in this operation */ + /* Complete the AML descriptor header */ - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_IRQ, descriptor_length, + aml); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_extended_irq_resource + * FUNCTION: acpi_rs_get_ext_irq * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_extended_irq_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_ext_irq(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - u8 *temp_ptr; - u8 index; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_ext_irq); - - ACPI_FUNCTION_TRACE("rs_extended_irq_resource"); + char *out_resource_string; + u8 temp8; - /* Get the Descriptor Length field */ + ACPI_FUNCTION_TRACE("rs_get_ext_irq"); - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); + /* Get the flag bits */ - /* Validate minimum descriptor length */ - - if (temp16 < 6) { - return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); - } - - *bytes_consumed = temp16 + 3; - output_struct->type = ACPI_RSTYPE_EXT_IRQ; - - /* Point to the Byte3 */ - - buffer += 2; - temp8 = *buffer; - - output_struct->data.extended_irq.producer_consumer = temp8 & 0x01; + temp8 = aml->extended_irq.flags; + resource->data.extended_irq.producer_consumer = temp8 & 0x01; + resource->data.extended_irq.polarity = (temp8 >> 2) & 0x01; + resource->data.extended_irq.sharable = (temp8 >> 3) & 0x01; /* * Check for Interrupt Mode @@ -319,165 +254,80 @@ acpi_rs_extended_irq_resource(u8 * byte_stream_buffer, * * - Edge/Level are defined opposite in the table vs the headers */ - output_struct->data.extended_irq.edge_level = + resource->data.extended_irq.triggering = (temp8 & 0x2) ? ACPI_EDGE_SENSITIVE : ACPI_LEVEL_SENSITIVE; - /* Check Interrupt Polarity */ - - output_struct->data.extended_irq.active_high_low = (temp8 >> 2) & 0x1; - - /* Check for sharable */ - - output_struct->data.extended_irq.shared_exclusive = (temp8 >> 3) & 0x01; - - /* Point to Byte4 (IRQ Table length) */ - - buffer += 1; - temp8 = *buffer; - - /* Must have at least one IRQ */ + /* Get the IRQ Table length (Byte4) */ + temp8 = aml->extended_irq.table_length; + resource->data.extended_irq.interrupt_count = temp8; if (temp8 < 1) { + /* Must have at least one IRQ */ + return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); } - output_struct->data.extended_irq.number_of_interrupts = temp8; - /* * Add any additional structure size to properly calculate * the next pointer at the end of this function */ - struct_size += (temp8 - 1) * 4; + resource->length = (temp8 - 1) * 4; + out_resource_string = ACPI_CAST_PTR(char, + (&resource->data.extended_irq. + interrupts[0] + temp8)); - /* Point to Byte5 (First IRQ Number) */ + /* Get every IRQ in the table, each is 32 bits */ - buffer += 1; + acpi_rs_move_data(resource->data.extended_irq.interrupts, + aml->extended_irq.interrupt_number, + (u16) temp8, ACPI_MOVE_TYPE_32_TO_32); - /* Cycle through every IRQ in the table */ + /* Get the optional resource_source (index and string) */ - for (index = 0; index < temp8; index++) { - ACPI_MOVE_32_TO_32(&output_struct->data.extended_irq. - interrupts[index], buffer); + resource->length += + acpi_rs_get_resource_source(aml_resource_length, + (acpi_size) resource->length + + sizeof(struct + aml_resource_extended_irq), + &resource->data.extended_irq. + resource_source, aml, + out_resource_string); - /* Point to the next IRQ */ + /* Complete the resource header */ - 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. - * - * Note: Some resource descriptors will have an additional null, so - * we add 1 to the length. - */ - if (*bytes_consumed > - ((acpi_size) output_struct->data.extended_irq.number_of_interrupts * - 4) + (5 + 1)) { - /* Dereference the Index */ - - temp8 = *buffer; - output_struct->data.extended_irq.resource_source.index = - (u32) temp8; - - /* Point to the String */ - - buffer += 1; - - /* Point the String pointer to the end of this structure. */ - - output_struct->data.extended_irq.resource_source.string_ptr = - (char *)((char *)output_struct + struct_size); - - temp_ptr = (u8 *) - output_struct->data.extended_irq.resource_source.string_ptr; - - /* Copy the string into the buffer */ - - index = 0; - while (*buffer) { - *temp_ptr = *buffer; - - temp_ptr += 1; - buffer += 1; - index += 1; - } - - /* Add the terminating null */ - - *temp_ptr = 0; - output_struct->data.extended_irq.resource_source.string_length = - index + 1; - - /* - * In order for the struct_size to fall on a 32-bit boundary, - * calculate the length of the string and expand the - * struct_size to the next 32-bit boundary. - */ - temp8 = (u8) (index + 1); - struct_size += ACPI_ROUND_UP_to_32_bITS(temp8); - } else { - output_struct->data.extended_irq.resource_source.index = 0; - output_struct->data.extended_irq.resource_source.string_length = - 0; - output_struct->data.extended_irq.resource_source.string_ptr = - NULL; - } - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_EXTENDED_IRQ; + resource->length += + ACPI_SIZEOF_RESOURCE(struct acpi_resource_extended_irq); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_extended_irq_stream + * FUNCTION: acpi_rs_set_ext_irq * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_extended_irq_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_ext_irq(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - u16 *length_field; - u8 temp8 = 0; - u8 index; - - ACPI_FUNCTION_TRACE("rs_extended_irq_stream"); - - /* Set the Descriptor Type field */ - - *buffer = ACPI_RDESC_TYPE_EXTENDED_XRUPT; - buffer += 1; + acpi_size descriptor_length; - /* Save a pointer to the Length field - to be filled in later */ - - length_field = ACPI_CAST_PTR(u16, buffer); - buffer += 2; + ACPI_FUNCTION_TRACE("rs_set_ext_irq"); /* Set the Interrupt vector flags */ - temp8 = (u8) (resource->data.extended_irq.producer_consumer & 0x01); - temp8 |= ((resource->data.extended_irq.shared_exclusive & 0x01) << 3); + aml->extended_irq.flags = (u8) + ((resource->data.extended_irq.producer_consumer & 0x01) | + ((resource->data.extended_irq.sharable & 0x01) << 3) | + ((resource->data.extended_irq.polarity & 0x1) << 2)); /* * Set the Interrupt Mode @@ -488,64 +338,36 @@ acpi_rs_extended_irq_stream(struct acpi_resource *resource, * * - Edge/Level are defined opposite in the table vs the headers */ - if (ACPI_EDGE_SENSITIVE == resource->data.extended_irq.edge_level) { - temp8 |= 0x2; + if (resource->data.extended_irq.triggering == ACPI_EDGE_SENSITIVE) { + aml->extended_irq.flags |= 0x02; } - /* Set the Interrupt Polarity */ - - temp8 |= ((resource->data.extended_irq.active_high_low & 0x1) << 2); - - *buffer = temp8; - buffer += 1; - /* Set the Interrupt table length */ - temp8 = (u8) resource->data.extended_irq.number_of_interrupts; - - *buffer = temp8; - buffer += 1; + aml->extended_irq.table_length = (u8) + resource->data.extended_irq.interrupt_count; - for (index = 0; - index < resource->data.extended_irq.number_of_interrupts; - index++) { - ACPI_MOVE_32_TO_32(buffer, - &resource->data.extended_irq. - interrupts[index]); - buffer += 4; - } - - /* Resource Source Index and Resource Source are optional */ + descriptor_length = (sizeof(struct aml_resource_extended_irq) - 4) + + ((acpi_size) resource->data.extended_irq.interrupt_count * + sizeof(u32)); - if (0 != resource->data.extended_irq.resource_source.string_length) { - *buffer = - (u8) resource->data.extended_irq.resource_source.index; - buffer += 1; + /* Set each interrupt value */ - /* Copy the string */ + acpi_rs_move_data(aml->extended_irq.interrupt_number, + resource->data.extended_irq.interrupts, + (u16) resource->data.extended_irq.interrupt_count, + ACPI_MOVE_TYPE_32_TO_32); - ACPI_STRCPY((char *)buffer, - resource->data.extended_irq.resource_source. - string_ptr); - - /* - * Buffer needs to be set to the length of the string + one for the - * terminating null - */ - buffer += - (acpi_size) (ACPI_STRLEN - (resource->data.extended_irq.resource_source. - string_ptr) + 1); - } + /* Resource Source Index and Resource Source are optional */ - /* Return the number of bytes consumed in this operation */ + descriptor_length = acpi_rs_set_resource_source(aml, descriptor_length, + &resource->data. + extended_irq. + resource_source); - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + /* Complete the AML descriptor header */ - /* - * Set the length field to the number of bytes consumed - * minus the header size (3 bytes) - */ - *length_field = (u16) (*bytes_consumed - 3); + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_EXTENDED_IRQ, + descriptor_length, aml); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c index 87e75349dd0a..f72d42e0927b 100644 --- a/drivers/acpi/resources/rslist.c +++ b/drivers/acpi/resources/rslist.c @@ -47,106 +47,70 @@ #define _COMPONENT ACPI_RESOURCES ACPI_MODULE_NAME("rslist") -/* Dispatch table for convert-to-stream functions */ -typedef -acpi_status(*ACPI_STREAM_HANDLER) (struct acpi_resource * resource, - u8 ** output_buffer, - acpi_size * bytes_consumed); - -static ACPI_STREAM_HANDLER acpi_gbl_stream_dispatch[] = { - acpi_rs_irq_stream, /* ACPI_RSTYPE_IRQ */ - acpi_rs_dma_stream, /* ACPI_RSTYPE_DMA */ - acpi_rs_start_depend_fns_stream, /* ACPI_RSTYPE_START_DPF */ - acpi_rs_end_depend_fns_stream, /* ACPI_RSTYPE_END_DPF */ - acpi_rs_io_stream, /* ACPI_RSTYPE_IO */ - acpi_rs_fixed_io_stream, /* ACPI_RSTYPE_FIXED_IO */ - acpi_rs_vendor_stream, /* ACPI_RSTYPE_VENDOR */ - acpi_rs_end_tag_stream, /* ACPI_RSTYPE_END_TAG */ - acpi_rs_memory24_stream, /* ACPI_RSTYPE_MEM24 */ - acpi_rs_memory32_range_stream, /* ACPI_RSTYPE_MEM32 */ - acpi_rs_fixed_memory32_stream, /* ACPI_RSTYPE_FIXED_MEM32 */ - acpi_rs_address16_stream, /* ACPI_RSTYPE_ADDRESS16 */ - acpi_rs_address32_stream, /* ACPI_RSTYPE_ADDRESS32 */ - acpi_rs_address64_stream, /* ACPI_RSTYPE_ADDRESS64 */ - acpi_rs_extended_irq_stream, /* ACPI_RSTYPE_EXT_IRQ */ - acpi_rs_generic_register_stream /* ACPI_RSTYPE_GENERIC_REG */ -}; - -/* Dispatch tables for convert-to-resource functions */ - -typedef -acpi_status(*ACPI_RESOURCE_HANDLER) (u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, - acpi_size * structure_size); - -static ACPI_RESOURCE_HANDLER acpi_gbl_sm_resource_dispatch[] = { - NULL, /* 0x00, Reserved */ - NULL, /* 0x01, Reserved */ - NULL, /* 0x02, Reserved */ - NULL, /* 0x03, Reserved */ - acpi_rs_irq_resource, /* ACPI_RDESC_TYPE_IRQ_FORMAT */ - acpi_rs_dma_resource, /* ACPI_RDESC_TYPE_DMA_FORMAT */ - acpi_rs_start_depend_fns_resource, /* ACPI_RDESC_TYPE_START_DEPENDENT */ - acpi_rs_end_depend_fns_resource, /* ACPI_RDESC_TYPE_END_DEPENDENT */ - acpi_rs_io_resource, /* ACPI_RDESC_TYPE_IO_PORT */ - acpi_rs_fixed_io_resource, /* ACPI_RDESC_TYPE_FIXED_IO_PORT */ - NULL, /* 0x0A, Reserved */ - NULL, /* 0x0B, Reserved */ - NULL, /* 0x0C, Reserved */ - NULL, /* 0x0D, Reserved */ - acpi_rs_vendor_resource, /* ACPI_RDESC_TYPE_SMALL_VENDOR */ - acpi_rs_end_tag_resource /* ACPI_RDESC_TYPE_END_TAG */ -}; - -static ACPI_RESOURCE_HANDLER acpi_gbl_lg_resource_dispatch[] = { - NULL, /* 0x00, Reserved */ - acpi_rs_memory24_resource, /* ACPI_RDESC_TYPE_MEMORY_24 */ - acpi_rs_generic_register_resource, /* ACPI_RDESC_TYPE_GENERIC_REGISTER */ - NULL, /* 0x03, Reserved */ - acpi_rs_vendor_resource, /* ACPI_RDESC_TYPE_LARGE_VENDOR */ - acpi_rs_memory32_range_resource, /* ACPI_RDESC_TYPE_MEMORY_32 */ - acpi_rs_fixed_memory32_resource, /* ACPI_RDESC_TYPE_FIXED_MEMORY_32 */ - acpi_rs_address32_resource, /* ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE */ - acpi_rs_address16_resource, /* ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE */ - acpi_rs_extended_irq_resource, /* ACPI_RDESC_TYPE_EXTENDED_XRUPT */ - acpi_rs_address64_resource, /* ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE */ - acpi_rs_address64_resource /* ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE */ -}; - /* Local prototypes */ +static ACPI_GET_RESOURCE_HANDLER acpi_rs_get_resource_handler(u8 resource_type); -static ACPI_RESOURCE_HANDLER acpi_rs_get_resource_handler(u8 resource_type); +static acpi_status acpi_rs_validate_resource_length(union aml_resource *aml); /******************************************************************************* * - * FUNCTION: acpi_rs_get_resource_type + * FUNCTION: acpi_rs_validate_resource_length * - * PARAMETERS: resource_type - Byte 0 of a resource descriptor + * PARAMETERS: Aml - Pointer to the AML resource descriptor * - * RETURN: The Resource Type with no extraneous bits (except the large/ - * small bit -- left alone) + * RETURN: Status - AE_OK if the resource length appears valid * - * DESCRIPTION: Extract the Resource Type/Name from the first byte of - * a resource descriptor. + * DESCRIPTION: Validate the resource_length. Fixed-length descriptors must + * have the exact length; variable-length descriptors must be + * at least as long as the minimum. Certain Small descriptors + * can vary in size by at most one byte. * ******************************************************************************/ -u8 acpi_rs_get_resource_type(u8 resource_type) +static acpi_status acpi_rs_validate_resource_length(union aml_resource *aml) { + struct acpi_resource_info *resource_info; + u16 minimum_aml_resource_length; + u16 resource_length; + ACPI_FUNCTION_ENTRY(); - /* Determine if this is a small or large resource */ + /* Get the size and type info about this resource descriptor */ - if (resource_type & ACPI_RDESC_TYPE_LARGE) { - /* Large Resource Type -- bits 6:0 contain the name */ + resource_info = + acpi_rs_get_resource_info(aml->small_header.descriptor_type); + if (!resource_info) { + return (AE_AML_INVALID_RESOURCE_TYPE); + } + + resource_length = acpi_rs_get_resource_length(aml); + minimum_aml_resource_length = + resource_info->minimum_aml_resource_length; + + /* Validate based upon the type of resource, fixed length or variable */ + + if (resource_info->length_type == ACPI_FIXED_LENGTH) { + /* Fixed length resource, length must match exactly */ - return (resource_type); + if (resource_length != minimum_aml_resource_length) { + return (AE_AML_BAD_RESOURCE_LENGTH); + } + } else if (resource_info->length_type == ACPI_VARIABLE_LENGTH) { + /* Variable length resource, must be at least the minimum */ + + if (resource_length < minimum_aml_resource_length) { + return (AE_AML_BAD_RESOURCE_LENGTH); + } } else { - /* Small Resource Type -- bits 6:3 contain the name */ + /* Small variable length resource, allowed to be (Min) or (Min-1) */ - return ((u8) (resource_type & ACPI_RDESC_SMALL_MASK)); + if ((resource_length > minimum_aml_resource_length) || + (resource_length < (minimum_aml_resource_length - 1))) { + return (AE_AML_BAD_RESOURCE_LENGTH); + } } + + return (AE_OK); } /******************************************************************************* @@ -162,38 +126,38 @@ u8 acpi_rs_get_resource_type(u8 resource_type) * ******************************************************************************/ -static ACPI_RESOURCE_HANDLER acpi_rs_get_resource_handler(u8 resource_type) +static ACPI_GET_RESOURCE_HANDLER acpi_rs_get_resource_handler(u8 resource_type) { ACPI_FUNCTION_ENTRY(); /* Determine if this is a small or large resource */ - if (resource_type & ACPI_RDESC_TYPE_LARGE) { + if (resource_type & ACPI_RESOURCE_NAME_LARGE) { /* Large Resource Type -- bits 6:0 contain the name */ - if (resource_type > ACPI_RDESC_LARGE_MAX) { + if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) { return (NULL); } - return (acpi_gbl_lg_resource_dispatch[(resource_type & - ACPI_RDESC_LARGE_MASK)]); + return (acpi_gbl_lg_get_resource_dispatch[(resource_type & + ACPI_RESOURCE_NAME_LARGE_MASK)]); } else { /* Small Resource Type -- bits 6:3 contain the name */ - return (acpi_gbl_sm_resource_dispatch[((resource_type & - ACPI_RDESC_SMALL_MASK) - >> 3)]); + return (acpi_gbl_sm_get_resource_dispatch[((resource_type & + ACPI_RESOURCE_NAME_SMALL_MASK) + >> 3)]); } } /******************************************************************************* * - * FUNCTION: acpi_rs_byte_stream_to_list + * FUNCTION: acpi_rs_convert_aml_to_resources * - * PARAMETERS: byte_stream_buffer - Pointer to the resource byte stream - * byte_stream_buffer_length - Length of byte_stream_buffer - * output_buffer - Pointer to the buffer that will - * contain the output structures + * PARAMETERS: aml_buffer - Pointer to the resource byte stream + * aml_buffer_length - Length of aml_buffer + * output_buffer - Pointer to the buffer that will + * contain the output structures * * RETURN: Status * @@ -203,37 +167,60 @@ static ACPI_RESOURCE_HANDLER acpi_rs_get_resource_handler(u8 resource_type) ******************************************************************************/ acpi_status -acpi_rs_byte_stream_to_list(u8 * byte_stream_buffer, - u32 byte_stream_buffer_length, u8 * output_buffer) +acpi_rs_convert_aml_to_resources(u8 * aml_buffer, + u32 aml_buffer_length, u8 * output_buffer) { u8 *buffer = output_buffer; acpi_status status; acpi_size bytes_parsed = 0; - acpi_size bytes_consumed = 0; - acpi_size structure_size = 0; struct acpi_resource *resource; - ACPI_RESOURCE_HANDLER handler; + u16 resource_length; + u32 descriptor_length; + ACPI_GET_RESOURCE_HANDLER handler; - ACPI_FUNCTION_TRACE("rs_byte_stream_to_list"); + ACPI_FUNCTION_TRACE("rs_convert_aml_to_resources"); /* Loop until end-of-buffer or an end_tag is found */ - while (bytes_parsed < byte_stream_buffer_length) { + while (bytes_parsed < aml_buffer_length) { /* Get the handler associated with this Descriptor Type */ - handler = acpi_rs_get_resource_handler(*byte_stream_buffer); - if (handler) { - /* Convert a byte stream resource to local resource struct */ + handler = acpi_rs_get_resource_handler(*aml_buffer); + if (!handler) { + /* No handler indicates invalid resource type */ - status = handler(byte_stream_buffer, &bytes_consumed, - &buffer, &structure_size); - } else { - /* Invalid resource type */ + return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); + } - status = AE_AML_INVALID_RESOURCE_TYPE; + resource_length = + acpi_rs_get_resource_length(ACPI_CAST_PTR + (union aml_resource, + aml_buffer)); + + descriptor_length = + acpi_rs_get_descriptor_length(ACPI_CAST_PTR + (union aml_resource, + aml_buffer)); + + /* + * Perform limited validation of the resource length, based upon + * what we know about the resource type + */ + status = + acpi_rs_validate_resource_length(ACPI_CAST_PTR + (union aml_resource, + aml_buffer)); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } + /* Convert a byte stream resource to local resource struct */ + + status = handler(ACPI_CAST_PTR(union aml_resource, aml_buffer), + resource_length, + ACPI_CAST_PTR(struct acpi_resource, buffer)); if (ACPI_FAILURE(status)) { + ACPI_REPORT_ERROR(("Could not convert AML resource (type %X) to resource, %s\n", *aml_buffer, acpi_format_exception(status))); return_ACPI_STATUS(status); } @@ -245,19 +232,19 @@ acpi_rs_byte_stream_to_list(u8 * byte_stream_buffer, /* Normal exit on completion of an end_tag resource descriptor */ - if (acpi_rs_get_resource_type(*byte_stream_buffer) == - ACPI_RDESC_TYPE_END_TAG) { + if (acpi_rs_get_resource_type(*aml_buffer) == + ACPI_RESOURCE_NAME_END_TAG) { return_ACPI_STATUS(AE_OK); } /* Update counter and point to the next input resource */ - bytes_parsed += bytes_consumed; - byte_stream_buffer += bytes_consumed; + bytes_parsed += descriptor_length; + aml_buffer += descriptor_length; /* Point to the next structure in the output buffer */ - buffer += ACPI_ALIGN_RESOURCE_SIZE(structure_size); + buffer += resource->length; } /* Completed buffer, but did not find an end_tag resource descriptor */ @@ -267,17 +254,15 @@ acpi_rs_byte_stream_to_list(u8 * byte_stream_buffer, /******************************************************************************* * - * FUNCTION: acpi_rs_list_to_byte_stream + * FUNCTION: acpi_rs_convert_resources_to_aml * - * PARAMETERS: Resource - Pointer to the resource linked list - * byte_steam_size_needed - Calculated size of the byte stream - * needed from calling - * acpi_rs_get_byte_stream_length() - * The size of the output_buffer is - * guaranteed to be >= - * byte_stream_size_needed - * output_buffer - Pointer to the buffer that will - * contain the byte stream + * PARAMETERS: Resource - Pointer to the resource linked list + * aml_size_needed - Calculated size of the byte stream + * needed from calling acpi_rs_get_aml_length() + * The size of the output_buffer is + * guaranteed to be >= aml_size_needed + * output_buffer - Pointer to the buffer that will + * contain the byte stream * * RETURN: Status * @@ -287,52 +272,69 @@ acpi_rs_byte_stream_to_list(u8 * byte_stream_buffer, ******************************************************************************/ acpi_status -acpi_rs_list_to_byte_stream(struct acpi_resource *resource, - acpi_size byte_stream_size_needed, - u8 * output_buffer) +acpi_rs_convert_resources_to_aml(struct acpi_resource *resource, + acpi_size aml_size_needed, u8 * output_buffer) { - u8 *buffer = output_buffer; - acpi_size bytes_consumed = 0; + u8 *aml_buffer = output_buffer; acpi_status status; - ACPI_FUNCTION_TRACE("rs_list_to_byte_stream"); + ACPI_FUNCTION_TRACE("rs_convert_resources_to_aml"); /* Convert each resource descriptor in the list */ while (1) { - /* Validate Type before dispatch */ + /* Validate Resource Descriptor Type before dispatch */ - if (resource->type > ACPI_RSTYPE_MAX) { + if (resource->type > ACPI_RESOURCE_TYPE_MAX) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid descriptor type (%X) in resource list\n", resource->type)); return_ACPI_STATUS(AE_BAD_DATA); } - /* Perform the conversion, per resource type */ + /* Perform the conversion per resource type */ + + status = + acpi_gbl_set_resource_dispatch[resource->type] (resource, + ACPI_CAST_PTR + (union + aml_resource, + aml_buffer)); + if (ACPI_FAILURE(status)) { + ACPI_REPORT_ERROR(("Could not convert resource (type %X) to AML, %s\n", resource->type, acpi_format_exception(status))); + return_ACPI_STATUS(status); + } + + /* Perform final sanity check on the new AML resource descriptor */ - status = acpi_gbl_stream_dispatch[resource->type] (resource, - &buffer, - &bytes_consumed); + status = + acpi_rs_validate_resource_length(ACPI_CAST_PTR + (union aml_resource, + aml_buffer)); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - /* Check for end-of-list */ + /* Check for end-of-list, normal exit */ - if (resource->type == ACPI_RSTYPE_END_TAG) { - /* An End Tag indicates the end of the Resource Template */ + if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) { + /* An End Tag indicates the end of the input Resource Template */ return_ACPI_STATUS(AE_OK); } - /* Set the Buffer to point to the next (output) resource descriptor */ + /* Extract the total length of the new descriptor */ + /* Set the aml_buffer to point to the next (output) resource descriptor */ - buffer += bytes_consumed; + aml_buffer += + acpi_rs_get_descriptor_length(ACPI_CAST_PTR + (union aml_resource, + aml_buffer)); - /* Point to the next input resource object */ + /* Point to the next input resource descriptor */ - resource = ACPI_PTR_ADD(struct acpi_resource, - resource, resource->length); + resource = + ACPI_PTR_ADD(struct acpi_resource, resource, + resource->length); } } diff --git a/drivers/acpi/resources/rsmemory.c b/drivers/acpi/resources/rsmemory.c index 418f1afb10a3..47e979e7ba35 100644 --- a/drivers/acpi/resources/rsmemory.c +++ b/drivers/acpi/resources/rsmemory.c @@ -49,446 +49,260 @@ ACPI_MODULE_NAME("rsmemory") /******************************************************************************* * - * FUNCTION: acpi_rs_memory24_resource + * FUNCTION: acpi_rs_get_memory24 * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_memory24_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_memory24(union aml_resource * aml, + u16 aml_resource_length, struct acpi_resource * resource) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem24); + ACPI_FUNCTION_TRACE("rs_get_memory24"); - ACPI_FUNCTION_TRACE("rs_memory24_resource"); + /* Get the Read/Write bit */ - /* Point past the Descriptor to get the number of bytes consumed */ + resource->data.memory24.read_write_attribute = + (aml->memory24.information & 0x01); - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); - - buffer += 2; - *bytes_consumed = (acpi_size) temp16 + 3; - output_struct->type = ACPI_RSTYPE_MEM24; - - /* Check Byte 3 the Read/Write bit */ - - temp8 = *buffer; - buffer += 1; - output_struct->data.memory24.read_write_attribute = temp8 & 0x01; - - /* Get min_base_address (Bytes 4-5) */ - - ACPI_MOVE_16_TO_16(&temp16, buffer); - buffer += 2; - output_struct->data.memory24.min_base_address = temp16; - - /* Get max_base_address (Bytes 6-7) */ - - ACPI_MOVE_16_TO_16(&temp16, buffer); - buffer += 2; - output_struct->data.memory24.max_base_address = temp16; - - /* Get Alignment (Bytes 8-9) */ - - ACPI_MOVE_16_TO_16(&temp16, buffer); - buffer += 2; - output_struct->data.memory24.alignment = temp16; - - /* Get range_length (Bytes 10-11) */ - - ACPI_MOVE_16_TO_16(&temp16, buffer); - output_struct->data.memory24.range_length = temp16; - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; + /* + * Get the following contiguous fields from the AML descriptor: + * Minimum Base Address + * Maximum Base Address + * Address Base Alignment + * Range Length + */ + acpi_rs_move_data(&resource->data.memory24.minimum, + &aml->memory24.minimum, 4, ACPI_MOVE_TYPE_16_TO_32); - /* Return the final size of the structure */ + /* Complete the resource header */ - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_MEMORY24; + resource->length = ACPI_SIZEOF_RESOURCE(struct acpi_resource_memory24); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_memory24_stream + * FUNCTION: acpi_rs_set_memory24 * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_memory24_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_memory24(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - - ACPI_FUNCTION_TRACE("rs_memory24_stream"); - - /* The Descriptor Type field is static */ - - *buffer = ACPI_RDESC_TYPE_MEMORY_24; - buffer += 1; - - /* The length field is static */ - - temp16 = 0x09; - ACPI_MOVE_16_TO_16(buffer, &temp16); - buffer += 2; + ACPI_FUNCTION_TRACE("rs_set_memory24"); /* Set the Information Byte */ - temp8 = (u8) (resource->data.memory24.read_write_attribute & 0x01); - *buffer = temp8; - buffer += 1; - - /* Set the Range minimum base address */ + aml->memory24.information = (u8) + (resource->data.memory24.read_write_attribute & 0x01); - ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.min_base_address); - buffer += 2; - - /* Set the Range maximum base address */ - - ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.max_base_address); - buffer += 2; - - /* Set the base alignment */ - - ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.alignment); - buffer += 2; - - /* Set the range length */ - - ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.range_length); - buffer += 2; + /* + * Set the following contiguous fields in the AML descriptor: + * Minimum Base Address + * Maximum Base Address + * Address Base Alignment + * Range Length + */ + acpi_rs_move_data(&aml->memory24.minimum, + &resource->data.memory24.minimum, 4, + ACPI_MOVE_TYPE_32_TO_16); - /* Return the number of bytes consumed in this operation */ + /* Complete the AML descriptor header */ - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_MEMORY24, + sizeof(struct aml_resource_memory24), aml); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_memory32_range_resource + * FUNCTION: acpi_rs_get_memory32 * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_memory32_range_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_memory32(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem32); - - ACPI_FUNCTION_TRACE("rs_memory32_range_resource"); + ACPI_FUNCTION_TRACE("rs_get_memory32"); - /* Point past the Descriptor to get the number of bytes consumed */ + /* Get the Read/Write bit */ - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); - - buffer += 2; - *bytes_consumed = (acpi_size) temp16 + 3; - output_struct->type = ACPI_RSTYPE_MEM32; + resource->data.memory32.read_write_attribute = + (aml->memory32.information & 0x01); /* - * Point to the place in the output buffer where the data portion will - * begin. - * 1. Set the RESOURCE_DATA * Data to point to its own address, then - * 2. Set the pointer to the next address. - * - * NOTE: output_struct->Data is cast to u8, otherwise, this addition adds - * 4 * sizeof(RESOURCE_DATA) instead of 4 * sizeof(u8) + * Get the following contiguous fields from the AML descriptor: + * Minimum Base Address + * Maximum Base Address + * Address Base Alignment + * Range Length */ + acpi_rs_move_data(&resource->data.memory32.minimum, + &aml->memory32.minimum, 4, ACPI_MOVE_TYPE_32_TO_32); - /* Check Byte 3 the Read/Write bit */ - - temp8 = *buffer; - buffer += 1; - - output_struct->data.memory32.read_write_attribute = temp8 & 0x01; - - /* Get min_base_address (Bytes 4-7) */ - - ACPI_MOVE_32_TO_32(&output_struct->data.memory32.min_base_address, - buffer); - buffer += 4; - - /* Get max_base_address (Bytes 8-11) */ - - ACPI_MOVE_32_TO_32(&output_struct->data.memory32.max_base_address, - buffer); - buffer += 4; - - /* Get Alignment (Bytes 12-15) */ - - ACPI_MOVE_32_TO_32(&output_struct->data.memory32.alignment, buffer); - buffer += 4; - - /* Get range_length (Bytes 16-19) */ - - ACPI_MOVE_32_TO_32(&output_struct->data.memory32.range_length, buffer); - - /* Set the Length parameter */ + /* Complete the resource header */ - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_MEMORY32; + resource->length = ACPI_SIZEOF_RESOURCE(struct acpi_resource_memory32); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_fixed_memory32_resource + * FUNCTION: acpi_rs_set_memory32 * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_fixed_memory32_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_set_memory32(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_mem32); - - ACPI_FUNCTION_TRACE("rs_fixed_memory32_resource"); - - /* Point past the Descriptor to get the number of bytes consumed */ - - buffer += 1; - ACPI_MOVE_16_TO_16(&temp16, buffer); - - buffer += 2; - *bytes_consumed = (acpi_size) temp16 + 3; - output_struct->type = ACPI_RSTYPE_FIXED_MEM32; - - /* Check Byte 3 the Read/Write bit */ - - temp8 = *buffer; - buffer += 1; - output_struct->data.fixed_memory32.read_write_attribute = temp8 & 0x01; - - /* Get range_base_address (Bytes 4-7) */ - - ACPI_MOVE_32_TO_32(&output_struct->data.fixed_memory32. - range_base_address, buffer); - buffer += 4; - - /* Get range_length (Bytes 8-11) */ + ACPI_FUNCTION_TRACE("rs_set_memory32"); - ACPI_MOVE_32_TO_32(&output_struct->data.fixed_memory32.range_length, - buffer); + /* Set the Information Byte */ - /* Set the Length parameter */ + aml->memory32.information = (u8) + (resource->data.memory32.read_write_attribute & 0x01); - output_struct->length = (u32) struct_size; + /* + * Set the following contiguous fields in the AML descriptor: + * Minimum Base Address + * Maximum Base Address + * Address Base Alignment + * Range Length + */ + acpi_rs_move_data(&aml->memory32.minimum, + &resource->data.memory32.minimum, 4, + ACPI_MOVE_TYPE_32_TO_32); - /* Return the final size of the structure */ + /* Complete the AML descriptor header */ - *structure_size = struct_size; + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_MEMORY32, + sizeof(struct aml_resource_memory32), aml); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_memory32_range_stream + * FUNCTION: acpi_rs_get_fixed_memory32 * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_memory32_range_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_get_fixed_memory32(union aml_resource *aml, + u16 aml_resource_length, + struct acpi_resource *resource) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - - ACPI_FUNCTION_TRACE("rs_memory32_range_stream"); - - /* The Descriptor Type field is static */ + ACPI_FUNCTION_TRACE("rs_get_fixed_memory32"); - *buffer = ACPI_RDESC_TYPE_MEMORY_32; - buffer += 1; - - /* The length field is static */ - - temp16 = 0x11; - - ACPI_MOVE_16_TO_16(buffer, &temp16); - buffer += 2; - - /* Set the Information Byte */ + /* Get the Read/Write bit */ - temp8 = (u8) (resource->data.memory32.read_write_attribute & 0x01); - *buffer = temp8; - buffer += 1; + resource->data.fixed_memory32.read_write_attribute = + (aml->fixed_memory32.information & 0x01); - /* Set the Range minimum base address */ - - ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.min_base_address); - buffer += 4; - - /* Set the Range maximum base address */ - - ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.max_base_address); - buffer += 4; - - /* Set the base alignment */ - - ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.alignment); - buffer += 4; - - /* Set the range length */ - - ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.range_length); - buffer += 4; + /* + * Get the following contiguous fields from the AML descriptor: + * Base Address + * Range Length + */ + ACPI_MOVE_32_TO_32(&resource->data.fixed_memory32.address, + &aml->fixed_memory32.address); + ACPI_MOVE_32_TO_32(&resource->data.fixed_memory32.address_length, + &aml->fixed_memory32.address_length); - /* Return the number of bytes consumed in this operation */ + /* Complete the resource header */ - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + resource->type = ACPI_RESOURCE_TYPE_FIXED_MEMORY32; + resource->length = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_memory32); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_fixed_memory32_stream + * FUNCTION: acpi_rs_set_fixed_memory32 * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_fixed_memory32_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_fixed_memory32(struct acpi_resource *resource, + union aml_resource *aml) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - - ACPI_FUNCTION_TRACE("rs_fixed_memory32_stream"); - - /* The Descriptor Type field is static */ - - *buffer = ACPI_RDESC_TYPE_FIXED_MEMORY_32; - buffer += 1; - - /* The length field is static */ - - temp16 = 0x09; - - ACPI_MOVE_16_TO_16(buffer, &temp16); - buffer += 2; + ACPI_FUNCTION_TRACE("rs_set_fixed_memory32"); /* Set the Information Byte */ - temp8 = - (u8) (resource->data.fixed_memory32.read_write_attribute & 0x01); - *buffer = temp8; - buffer += 1; + aml->fixed_memory32.information = (u8) + (resource->data.fixed_memory32.read_write_attribute & 0x01); - /* Set the Range base address */ - - ACPI_MOVE_32_TO_32(buffer, - &resource->data.fixed_memory32.range_base_address); - buffer += 4; - - /* Set the range length */ - - ACPI_MOVE_32_TO_32(buffer, &resource->data.fixed_memory32.range_length); - buffer += 4; + /* + * Set the following contiguous fields in the AML descriptor: + * Base Address + * Range Length + */ + ACPI_MOVE_32_TO_32(&aml->fixed_memory32.address, + &resource->data.fixed_memory32.address); + ACPI_MOVE_32_TO_32(&aml->fixed_memory32.address_length, + &resource->data.fixed_memory32.address_length); - /* Return the number of bytes consumed in this operation */ + /* Complete the AML descriptor header */ - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_FIXED_MEMORY32, + sizeof(struct aml_resource_fixed_memory32), + aml); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/resources/rsmisc.c b/drivers/acpi/resources/rsmisc.c index fa7f5a85b61d..337a0f01cb23 100644 --- a/drivers/acpi/resources/rsmisc.c +++ b/drivers/acpi/resources/rsmisc.c @@ -49,641 +49,432 @@ ACPI_MODULE_NAME("rsmisc") /******************************************************************************* * - * FUNCTION: acpi_rs_generic_register_resource + * FUNCTION: acpi_rs_get_generic_reg * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_generic_register_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, - acpi_size * structure_size) +acpi_rs_get_generic_reg(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u16 temp16; - u8 temp8; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_generic_reg); + ACPI_FUNCTION_TRACE("rs_get_generic_reg"); - ACPI_FUNCTION_TRACE("rs_generic_register_resource"); - - /* Byte 0 is the Descriptor Type */ - - buffer += 1; - - /* Get the Descriptor Length field (Bytes 1-2) */ - - ACPI_MOVE_16_TO_16(&temp16, buffer); - buffer += 2; - - /* Validate the descriptor length */ - - if (temp16 != 12) { - return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); - } - - /* The number of bytes consumed is fixed (12 + 3) */ - - *bytes_consumed = 15; - - /* Fill out the structure */ - - output_struct->type = ACPI_RSTYPE_GENERIC_REG; - - /* Get space_id (Byte 3) */ - - temp8 = *buffer; - output_struct->data.generic_reg.space_id = temp8; - buffer += 1; - - /* Get register_bit_width (Byte 4) */ - - temp8 = *buffer; - output_struct->data.generic_reg.bit_width = temp8; - buffer += 1; - - /* Get register_bit_offset (Byte 5) */ - - temp8 = *buffer; - output_struct->data.generic_reg.bit_offset = temp8; - buffer += 1; - - /* Get address_size (Byte 6) */ - - temp8 = *buffer; - output_struct->data.generic_reg.address_size = temp8; - buffer += 1; - - /* Get register_address (Bytes 7-14) */ - - ACPI_MOVE_64_TO_64(&output_struct->data.generic_reg.address, buffer); - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + /* + * Get the following fields from the AML descriptor: + * Address Space ID + * Register Bit Width + * Register Bit Offset + * Access Size + * Register Address + */ + resource->data.generic_reg.space_id = aml->generic_reg.address_space_id; + resource->data.generic_reg.bit_width = aml->generic_reg.bit_width; + resource->data.generic_reg.bit_offset = aml->generic_reg.bit_offset; + resource->data.generic_reg.access_size = aml->generic_reg.access_size; + ACPI_MOVE_64_TO_64(&resource->data.generic_reg.address, + &aml->generic_reg.address); + + /* Complete the resource header */ + + resource->type = ACPI_RESOURCE_TYPE_GENERIC_REGISTER; + resource->length = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_generic_register); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_generic_register_stream + * FUNCTION: acpi_rs_set_generic_reg * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_generic_register_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_generic_reg(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - u16 temp16; - - ACPI_FUNCTION_TRACE("rs_generic_register_stream"); - - /* Set the Descriptor Type (Byte 0) */ - - *buffer = ACPI_RDESC_TYPE_GENERIC_REGISTER; - buffer += 1; - - /* Set the Descriptor Length (Bytes 1-2) */ - - temp16 = 12; - ACPI_MOVE_16_TO_16(buffer, &temp16); - buffer += 2; - - /* Set space_id (Byte 3) */ - - *buffer = (u8) resource->data.generic_reg.space_id; - buffer += 1; - - /* Set register_bit_width (Byte 4) */ - - *buffer = (u8) resource->data.generic_reg.bit_width; - buffer += 1; - - /* Set register_bit_offset (Byte 5) */ - - *buffer = (u8) resource->data.generic_reg.bit_offset; - buffer += 1; - - /* Set address_size (Byte 6) */ - - *buffer = (u8) resource->data.generic_reg.address_size; - buffer += 1; - - /* Set register_address (Bytes 7-14) */ + ACPI_FUNCTION_TRACE("rs_set_generic_reg"); - ACPI_MOVE_64_TO_64(buffer, &resource->data.generic_reg.address); - buffer += 8; - - /* Return the number of bytes consumed in this operation */ - - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + /* + * Set the following fields in the AML descriptor: + * Address Space ID + * Register Bit Width + * Register Bit Offset + * Access Size + * Register Address + */ + aml->generic_reg.address_space_id = + (u8) resource->data.generic_reg.space_id; + aml->generic_reg.bit_width = (u8) resource->data.generic_reg.bit_width; + aml->generic_reg.bit_offset = + (u8) resource->data.generic_reg.bit_offset; + aml->generic_reg.access_size = + (u8) resource->data.generic_reg.access_size; + ACPI_MOVE_64_TO_64(&aml->generic_reg.address, + &resource->data.generic_reg.address); + + /* Complete the AML descriptor header */ + + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_GENERIC_REGISTER, + sizeof(struct + aml_resource_generic_register), aml); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_end_tag_resource + * FUNCTION: acpi_rs_get_vendor * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_end_tag_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_vendor(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - struct acpi_resource *output_struct = (void *)*output_buffer; - acpi_size struct_size = ACPI_RESOURCE_LENGTH; - - ACPI_FUNCTION_TRACE("rs_end_tag_resource"); + u8 *aml_byte_data; - /* The number of bytes consumed is static */ + ACPI_FUNCTION_TRACE("rs_get_vendor"); - *bytes_consumed = 2; + /* Determine if this is a large or small vendor specific item */ - /* Fill out the structure */ + if (aml->large_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) { + /* Large item, Point to the first vendor byte */ - output_struct->type = ACPI_RSTYPE_END_TAG; + aml_byte_data = + ((u8 *) aml) + sizeof(struct aml_resource_large_header); + } else { + /* Small item, Point to the first vendor byte */ - /* Set the Length parameter */ + aml_byte_data = + ((u8 *) aml) + sizeof(struct aml_resource_small_header); + } - output_struct->length = 0; + /* Copy the vendor-specific bytes */ - /* Return the final size of the structure */ + ACPI_MEMCPY(resource->data.vendor.byte_data, + aml_byte_data, aml_resource_length); + resource->data.vendor.byte_length = aml_resource_length; - *structure_size = struct_size; + /* + * In order for the struct_size to fall on a 32-bit boundary, + * calculate the length of the vendor string and expand the + * struct_size to the next 32-bit boundary. + */ + resource->type = ACPI_RESOURCE_TYPE_VENDOR; + resource->length = ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor) + + ACPI_ROUND_UP_to_32_bITS(aml_resource_length); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_end_tag_stream + * FUNCTION: acpi_rs_set_vendor * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_end_tag_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_vendor(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - u8 temp8 = 0; + u32 resource_length; + u8 *source; + u8 *destination; - ACPI_FUNCTION_TRACE("rs_end_tag_stream"); + ACPI_FUNCTION_TRACE("rs_set_vendor"); - /* The Descriptor Type field is static */ + resource_length = resource->data.vendor.byte_length; + source = ACPI_CAST_PTR(u8, resource->data.vendor.byte_data); - *buffer = ACPI_RDESC_TYPE_END_TAG | 0x01; - buffer += 1; + /* Length determines if this is a large or small resource */ - /* - * Set the Checksum - zero means that the resource data is treated as if - * the checksum operation succeeded (ACPI Spec 1.0b Section 6.4.2.8) - */ - temp8 = 0; + if (resource_length > 7) { + /* Large item, get pointer to the data part of the descriptor */ + + destination = + ((u8 *) aml) + sizeof(struct aml_resource_large_header); + + /* Complete the AML descriptor header */ + + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_VENDOR_LARGE, + (u32) (resource_length + + sizeof(struct + aml_resource_large_header)), + aml); + } else { + /* Small item, get pointer to the data part of the descriptor */ - *buffer = temp8; - buffer += 1; + destination = + ((u8 *) aml) + sizeof(struct aml_resource_small_header); - /* Return the number of bytes consumed in this operation */ + /* Complete the AML descriptor header */ - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_VENDOR_SMALL, + (u32) (resource_length + + sizeof(struct + aml_resource_small_header)), + aml); + } + + /* Copy the vendor-specific bytes */ + + ACPI_MEMCPY(destination, source, resource_length); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_vendor_resource + * FUNCTION: acpi_rs_get_start_dpf * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_vendor_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_get_start_dpf(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - u8 index; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_vendor); - - ACPI_FUNCTION_TRACE("rs_vendor_resource"); - - /* Dereference the Descriptor to find if this is a large or small item. */ + ACPI_FUNCTION_TRACE("rs_get_start_dpf"); - temp8 = *buffer; + /* Get the flags byte if present */ - if (temp8 & ACPI_RDESC_TYPE_LARGE) { - /* Large Item, point to the length field */ + if (aml_resource_length == 1) { + /* Get the Compatibility priority */ - buffer += 1; + resource->data.start_dpf.compatibility_priority = + (aml->start_dpf.flags & 0x03); - /* Dereference */ - - ACPI_MOVE_16_TO_16(&temp16, buffer); - - /* Calculate bytes consumed */ + if (resource->data.start_dpf.compatibility_priority >= 3) { + return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE); + } - *bytes_consumed = (acpi_size) temp16 + 3; + /* Get the Performance/Robustness preference */ - /* Point to the first vendor byte */ + resource->data.start_dpf.performance_robustness = + ((aml->start_dpf.flags >> 2) & 0x03); - buffer += 2; + if (resource->data.start_dpf.performance_robustness >= 3) { + return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE); + } } else { - /* Small Item, dereference the size */ - - temp16 = (u8) (*buffer & 0x07); - - /* Calculate bytes consumed */ + /* start_dependent_no_pri(), no flags byte, set defaults */ - *bytes_consumed = (acpi_size) temp16 + 1; - - /* Point to the first vendor byte */ + resource->data.start_dpf.compatibility_priority = + ACPI_ACCEPTABLE_CONFIGURATION; - buffer += 1; + resource->data.start_dpf.performance_robustness = + ACPI_ACCEPTABLE_CONFIGURATION; } - output_struct->type = ACPI_RSTYPE_VENDOR; - output_struct->data.vendor_specific.length = temp16; - - for (index = 0; index < temp16; index++) { - output_struct->data.vendor_specific.reserved[index] = *buffer; - buffer += 1; - } + /* Complete the resource header */ - /* - * In order for the struct_size to fall on a 32-bit boundary, - * calculate the length of the vendor string and expand the - * struct_size to the next 32-bit boundary. - */ - struct_size += ACPI_ROUND_UP_to_32_bITS(temp16); - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_START_DEPENDENT; + resource->length = + ACPI_SIZEOF_RESOURCE(struct acpi_resource_start_dependent); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_vendor_stream + * FUNCTION: acpi_rs_set_start_dpf * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_vendor_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_start_dpf(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - u16 temp16 = 0; - u8 temp8 = 0; - u8 index; - - ACPI_FUNCTION_TRACE("rs_vendor_stream"); - - /* Dereference the length to find if this is a large or small item. */ - - if (resource->data.vendor_specific.length > 7) { - /* Large Item, Set the descriptor field and length bytes */ + ACPI_FUNCTION_TRACE("rs_set_start_dpf"); - *buffer = ACPI_RDESC_TYPE_LARGE_VENDOR; - buffer += 1; - - temp16 = (u16) resource->data.vendor_specific.length; - - ACPI_MOVE_16_TO_16(buffer, &temp16); - buffer += 2; + /* + * The descriptor type field is set based upon whether a byte is needed + * to contain Priority data. + */ + if (ACPI_ACCEPTABLE_CONFIGURATION == + resource->data.start_dpf.compatibility_priority && + ACPI_ACCEPTABLE_CONFIGURATION == + resource->data.start_dpf.performance_robustness) { + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_START_DEPENDENT, + sizeof(struct + aml_resource_start_dependent_noprio), + aml); } else { - /* Small Item, Set the descriptor field */ - - temp8 = ACPI_RDESC_TYPE_SMALL_VENDOR; - temp8 |= (u8) resource->data.vendor_specific.length; - - *buffer = temp8; - buffer += 1; - } - - /* Loop through all of the Vendor Specific fields */ - - for (index = 0; index < resource->data.vendor_specific.length; index++) { - temp8 = resource->data.vendor_specific.reserved[index]; - - *buffer = temp8; - buffer += 1; + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_START_DEPENDENT, + sizeof(struct + aml_resource_start_dependent), + aml); + + /* Set the Flags byte */ + + aml->start_dpf.flags = (u8) + (((resource->data.start_dpf. + performance_robustness & 0x03) << 2) | (resource->data. + start_dpf. + compatibility_priority + & 0x03)); } - - /* Return the number of bytes consumed in this operation */ - - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_start_depend_fns_resource + * FUNCTION: acpi_rs_get_end_dpf * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_start_depend_fns_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, - acpi_size * structure_size) +acpi_rs_get_end_dpf(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = byte_stream_buffer; - struct acpi_resource *output_struct = (void *)*output_buffer; - u8 temp8 = 0; - acpi_size struct_size = - ACPI_SIZEOF_RESOURCE(struct acpi_resource_start_dpf); - - ACPI_FUNCTION_TRACE("rs_start_depend_fns_resource"); - - /* The number of bytes consumed are found in the descriptor (Bits:0-1) */ - - temp8 = *buffer; - - *bytes_consumed = (temp8 & 0x01) + 1; - - output_struct->type = ACPI_RSTYPE_START_DPF; - - /* Point to Byte 1 if it is used */ - - if (2 == *bytes_consumed) { - buffer += 1; - temp8 = *buffer; - - /* Check Compatibility priority */ - - output_struct->data.start_dpf.compatibility_priority = - temp8 & 0x03; - - if (3 == output_struct->data.start_dpf.compatibility_priority) { - return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE); - } + ACPI_FUNCTION_TRACE("rs_get_end_dpf"); - /* Check Performance/Robustness preference */ + /* Complete the resource header */ - output_struct->data.start_dpf.performance_robustness = - (temp8 >> 2) & 0x03; - - if (3 == output_struct->data.start_dpf.performance_robustness) { - return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE); - } - } else { - output_struct->data.start_dpf.compatibility_priority = - ACPI_ACCEPTABLE_CONFIGURATION; - - output_struct->data.start_dpf.performance_robustness = - ACPI_ACCEPTABLE_CONFIGURATION; - } - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + resource->type = ACPI_RESOURCE_TYPE_END_DEPENDENT; + resource->length = (u32) ACPI_RESOURCE_LENGTH; return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_end_depend_fns_resource + * FUNCTION: acpi_rs_set_end_dpf * - * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte - * stream - * bytes_consumed - Pointer to where the number of bytes - * consumed the byte_stream_buffer is - * returned - * output_buffer - Pointer to the return data buffer - * structure_size - Pointer to where the number of bytes - * in the return data struct is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the resource byte stream and fill out the appropriate - * structure pointed to by the output_buffer. Return the - * number of bytes consumed from the byte stream. + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_end_depend_fns_resource(u8 * byte_stream_buffer, - acpi_size * bytes_consumed, - u8 ** output_buffer, acpi_size * structure_size) +acpi_rs_set_end_dpf(struct acpi_resource *resource, union aml_resource *aml) { - struct acpi_resource *output_struct = (void *)*output_buffer; - acpi_size struct_size = ACPI_RESOURCE_LENGTH; - - ACPI_FUNCTION_TRACE("rs_end_depend_fns_resource"); - - /* The number of bytes consumed is static */ - - *bytes_consumed = 1; + ACPI_FUNCTION_TRACE("rs_set_end_dpf"); - /* Fill out the structure */ + /* Complete the AML descriptor header */ - output_struct->type = ACPI_RSTYPE_END_DPF; - - /* Set the Length parameter */ - - output_struct->length = (u32) struct_size; - - /* Return the final size of the structure */ - - *structure_size = struct_size; + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_END_DEPENDENT, + sizeof(struct aml_resource_end_dependent), + aml); return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_start_depend_fns_stream + * FUNCTION: acpi_rs_get_end_tag * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - u32 pointer that is filled with - * the number of bytes of the - * output_buffer used + * PARAMETERS: Aml - Pointer to the AML resource descriptor + * aml_resource_length - Length of the resource from the AML header + * Resource - Where the internal resource is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding + * internal resource descriptor, simplifying bitflags and handling + * alignment and endian issues if necessary. * ******************************************************************************/ acpi_status -acpi_rs_start_depend_fns_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_get_end_tag(union aml_resource *aml, + u16 aml_resource_length, struct acpi_resource *resource) { - u8 *buffer = *output_buffer; - u8 temp8 = 0; - - ACPI_FUNCTION_TRACE("rs_start_depend_fns_stream"); + ACPI_FUNCTION_TRACE("rs_get_end_tag"); - /* - * The descriptor type field is set based upon whether a byte is needed - * to contain Priority data. - */ - if (ACPI_ACCEPTABLE_CONFIGURATION == - resource->data.start_dpf.compatibility_priority && - ACPI_ACCEPTABLE_CONFIGURATION == - resource->data.start_dpf.performance_robustness) { - *buffer = ACPI_RDESC_TYPE_START_DEPENDENT; - } else { - *buffer = ACPI_RDESC_TYPE_START_DEPENDENT | 0x01; - buffer += 1; - - /* Set the Priority Byte Definition */ + /* Complete the resource header */ - temp8 = 0; - temp8 = (u8) ((resource->data.start_dpf.performance_robustness & - 0x03) << 2); - temp8 |= (resource->data.start_dpf.compatibility_priority & - 0x03); - *buffer = temp8; - } - - buffer += 1; - - /* Return the number of bytes consumed in this operation */ - - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + resource->type = ACPI_RESOURCE_TYPE_END_TAG; + resource->length = ACPI_RESOURCE_LENGTH; return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_rs_end_depend_fns_stream + * FUNCTION: acpi_rs_set_end_tag * - * PARAMETERS: Resource - Pointer to the resource linked list - * output_buffer - Pointer to the user's return buffer - * bytes_consumed - Pointer to where the number of bytes - * used in the output_buffer is returned + * PARAMETERS: Resource - Pointer to the resource descriptor + * Aml - Where the AML descriptor is returned * * RETURN: Status * - * DESCRIPTION: Take the linked list resource structure and fills in the - * the appropriate bytes in a byte stream + * DESCRIPTION: Convert an internal resource descriptor to the corresponding + * external AML resource descriptor. * ******************************************************************************/ acpi_status -acpi_rs_end_depend_fns_stream(struct acpi_resource *resource, - u8 ** output_buffer, acpi_size * bytes_consumed) +acpi_rs_set_end_tag(struct acpi_resource *resource, union aml_resource *aml) { - u8 *buffer = *output_buffer; - - ACPI_FUNCTION_TRACE("rs_end_depend_fns_stream"); + ACPI_FUNCTION_TRACE("rs_set_end_tag"); - /* The Descriptor Type field is static */ - - *buffer = ACPI_RDESC_TYPE_END_DEPENDENT; - buffer += 1; + /* + * Set the Checksum - zero means that the resource data is treated as if + * the checksum operation succeeded (ACPI Spec 1.0b Section 6.4.2.8) + */ + aml->end_tag.checksum = 0; - /* Return the number of bytes consumed in this operation */ + /* Complete the AML descriptor header */ - *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer); + acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_END_TAG, + sizeof(struct aml_resource_end_tag), aml); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c index 4446778eaf79..9d503de1a349 100644 --- a/drivers/acpi/resources/rsutils.c +++ b/drivers/acpi/resources/rsutils.c @@ -50,6 +50,438 @@ ACPI_MODULE_NAME("rsutils") /******************************************************************************* * + * FUNCTION: acpi_rs_move_data + * + * PARAMETERS: Destination - Pointer to the destination descriptor + * Source - Pointer to the source descriptor + * item_count - How many items to move + * move_type - Byte width + * + * RETURN: None + * + * DESCRIPTION: Move multiple data items from one descriptor to another. Handles + * alignment issues and endian issues if necessary, as configured + * via the ACPI_MOVE_* macros. (This is why a memcpy is not used) + * + ******************************************************************************/ +void +acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type) +{ + acpi_native_uint i; + + /* One move per item */ + + for (i = 0; i < item_count; i++) { + switch (move_type) { + case ACPI_MOVE_TYPE_16_TO_32: + ACPI_MOVE_16_TO_32(&((u32 *) destination)[i], + &((u16 *) source)[i]); + break; + + case ACPI_MOVE_TYPE_32_TO_16: + ACPI_MOVE_32_TO_16(&((u16 *) destination)[i], + &((u32 *) source)[i]); + break; + + case ACPI_MOVE_TYPE_32_TO_32: + ACPI_MOVE_32_TO_32(&((u32 *) destination)[i], + &((u32 *) source)[i]); + break; + + case ACPI_MOVE_TYPE_64_TO_64: + ACPI_MOVE_64_TO_64(&((u64 *) destination)[i], + &((u64 *) source)[i]); + break; + + default: + return; + } + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_resource_info + * + * PARAMETERS: resource_type - Byte 0 of a resource descriptor + * + * RETURN: Pointer to the resource conversion handler + * + * DESCRIPTION: Extract the Resource Type/Name from the first byte of + * a resource descriptor. + * + ******************************************************************************/ + +struct acpi_resource_info *acpi_rs_get_resource_info(u8 resource_type) +{ + struct acpi_resource_info *size_info; + + ACPI_FUNCTION_ENTRY(); + + /* Determine if this is a small or large resource */ + + if (resource_type & ACPI_RESOURCE_NAME_LARGE) { + /* Large Resource Type -- bits 6:0 contain the name */ + + if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) { + return (NULL); + } + + size_info = &acpi_gbl_lg_resource_info[(resource_type & + ACPI_RESOURCE_NAME_LARGE_MASK)]; + } else { + /* Small Resource Type -- bits 6:3 contain the name */ + + size_info = &acpi_gbl_sm_resource_info[((resource_type & + ACPI_RESOURCE_NAME_SMALL_MASK) + >> 3)]; + } + + /* Zero entry indicates an invalid resource type */ + + if (!size_info->minimum_internal_struct_length) { + return (NULL); + } + + return (size_info); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_resource_length + * + * PARAMETERS: Aml - Pointer to the raw AML resource descriptor + * + * RETURN: Byte Length + * + * DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By + * definition, this does not include the size of the descriptor + * header or the length field itself. + * + ******************************************************************************/ + +u16 acpi_rs_get_resource_length(union aml_resource * aml) +{ + u16 resource_length; + + ACPI_FUNCTION_ENTRY(); + + /* Determine if this is a small or large resource */ + + if (aml->large_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) { + /* Large Resource type -- bytes 1-2 contain the 16-bit length */ + + ACPI_MOVE_16_TO_16(&resource_length, + &aml->large_header.resource_length); + + } else { + /* Small Resource type -- bits 2:0 of byte 0 contain the length */ + + resource_length = (u16) (aml->small_header.descriptor_type & + ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK); + } + + return (resource_length); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_descriptor_length + * + * PARAMETERS: Aml - Pointer to the raw AML resource descriptor + * + * RETURN: Byte length + * + * DESCRIPTION: Get the total byte length of a raw AML descriptor, including the + * length of the descriptor header and the length field itself. + * Used to walk descriptor lists. + * + ******************************************************************************/ + +u32 acpi_rs_get_descriptor_length(union aml_resource * aml) +{ + u32 descriptor_length; + + ACPI_FUNCTION_ENTRY(); + + /* Determine if this is a small or large resource */ + + if (aml->large_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) { + /* Large Resource type -- bytes 1-2 contain the 16-bit length */ + + ACPI_MOVE_16_TO_32(&descriptor_length, + &aml->large_header.resource_length); + descriptor_length += sizeof(struct aml_resource_large_header); + + } else { + /* Small Resource type -- bits 2:0 of byte 0 contain the length */ + + descriptor_length = (u32) (aml->small_header.descriptor_type & + ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK); + descriptor_length += sizeof(struct aml_resource_small_header); + } + + return (descriptor_length); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_set_resource_header + * + * PARAMETERS: descriptor_type - Byte to be inserted as the type + * total_length - Length of the AML descriptor, including + * the header and length fields. + * Aml - Pointer to the raw AML descriptor + * + * RETURN: None + * + * DESCRIPTION: Set the descriptor_type and resource_length fields of an AML + * resource descriptor, both Large and Small descriptors are + * supported automatically + * + ******************************************************************************/ + +void +acpi_rs_set_resource_header(u8 descriptor_type, + acpi_size total_length, union aml_resource *aml) +{ + u16 resource_length; + + ACPI_FUNCTION_ENTRY(); + + /* Set the descriptor type */ + + aml->small_header.descriptor_type = descriptor_type; + + /* Determine if this is a small or large resource */ + + if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) { + /* Large Resource type -- bytes 1-2 contain the 16-bit length */ + + resource_length = + (u16) (total_length - + sizeof(struct aml_resource_large_header)); + + /* Insert length into the Large descriptor length field */ + + ACPI_MOVE_16_TO_16(&aml->large_header.resource_length, + &resource_length); + } else { + /* Small Resource type -- bits 2:0 of byte 0 contain the length */ + + resource_length = + (u16) (total_length - + sizeof(struct aml_resource_small_header)); + + /* Insert length into the descriptor type byte */ + + aml->small_header.descriptor_type |= (u8) resource_length; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_resource_type + * + * PARAMETERS: resource_type - Byte 0 of a resource descriptor + * + * RETURN: The Resource Type with no extraneous bits (except the + * Large/Small descriptor bit -- this is left alone) + * + * DESCRIPTION: Extract the Resource Type/Name from the first byte of + * a resource descriptor. + * + ******************************************************************************/ + +u8 acpi_rs_get_resource_type(u8 resource_type) +{ + ACPI_FUNCTION_ENTRY(); + + /* Determine if this is a small or large resource */ + + if (resource_type & ACPI_RESOURCE_NAME_LARGE) { + /* Large Resource Type -- bits 6:0 contain the name */ + + return (resource_type); + } else { + /* Small Resource Type -- bits 6:3 contain the name */ + + return ((u8) (resource_type & ACPI_RESOURCE_NAME_SMALL_MASK)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_strcpy + * + * PARAMETERS: Destination - Pointer to the destination string + * Source - Pointer to the source string + * + * RETURN: String length, including NULL terminator + * + * DESCRIPTION: Local string copy that returns the string length, saving a + * strcpy followed by a strlen. + * + ******************************************************************************/ + +static u16 acpi_rs_strcpy(char *destination, char *source) +{ + u16 i; + + ACPI_FUNCTION_ENTRY(); + + for (i = 0; source[i]; i++) { + destination[i] = source[i]; + } + + destination[i] = 0; + + /* Return string length including the NULL terminator */ + + return ((u16) (i + 1)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_resource_source + * + * PARAMETERS: resource_length - Length field of the descriptor + * minimum_length - Minimum length of the descriptor (minus + * any optional fields) + * resource_source - Where the resource_source is returned + * Aml - Pointer to the raw AML descriptor + * string_ptr - (optional) where to store the actual + * resource_source string + * + * RETURN: Length of the string plus NULL terminator, rounded up to 32 bit + * + * DESCRIPTION: Copy the optional resource_source data from a raw AML descriptor + * to an internal resource descriptor + * + ******************************************************************************/ + +u16 +acpi_rs_get_resource_source(u16 resource_length, + acpi_size minimum_length, + struct acpi_resource_source * resource_source, + union aml_resource * aml, char *string_ptr) +{ + acpi_size total_length; + u8 *aml_resource_source; + + ACPI_FUNCTION_ENTRY(); + + total_length = + resource_length + sizeof(struct aml_resource_large_header); + aml_resource_source = ((u8 *) aml) + minimum_length; + + /* + * resource_source is present if the length of the descriptor is longer than + * the minimum length. + * + * Note: Some resource descriptors will have an additional null, so + * we add 1 to the minimum length. + */ + if (total_length > (minimum_length + 1)) { + /* Get the resource_source_index */ + + resource_source->index = aml_resource_source[0]; + + resource_source->string_ptr = string_ptr; + if (!string_ptr) { + /* + * String destination pointer is not specified; Set the String + * pointer to the end of the current resource_source structure. + */ + resource_source->string_ptr = (char *) + ((u8 *) resource_source) + + sizeof(struct acpi_resource_source); + } + + /* Copy the resource_source string to the destination */ + + resource_source->string_length = + acpi_rs_strcpy(resource_source->string_ptr, + (char *)&aml_resource_source[1]); + + /* + * In order for the struct_size to fall on a 32-bit boundary, + * calculate the length of the string and expand the + * struct_size to the next 32-bit boundary. + */ + return ((u16) + ACPI_ROUND_UP_to_32_bITS(resource_source-> + string_length)); + } else { + /* resource_source is not present */ + + resource_source->index = 0; + resource_source->string_length = 0; + resource_source->string_ptr = NULL; + return (0); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_set_resource_source + * + * PARAMETERS: Aml - Pointer to the raw AML descriptor + * minimum_length - Minimum length of the descriptor (minus + * any optional fields) + * resource_source - Internal resource_source + + * + * RETURN: Total length of the AML descriptor + * + * DESCRIPTION: Convert an optoinal resource_source from internal format to a + * raw AML resource descriptor + * + ******************************************************************************/ + +acpi_size +acpi_rs_set_resource_source(union aml_resource * aml, + acpi_size minimum_length, + struct acpi_resource_source * resource_source) +{ + u8 *aml_resource_source; + acpi_size descriptor_length; + + ACPI_FUNCTION_ENTRY(); + + descriptor_length = minimum_length; + + /* Non-zero string length indicates presence of a resource_source */ + + if (resource_source->string_length) { + /* Point to the end of the AML descriptor */ + + aml_resource_source = ((u8 *) aml) + minimum_length; + + /* Copy the resource_source_index */ + + aml_resource_source[0] = (u8) resource_source->index; + + /* Copy the resource_source string */ + + ACPI_STRCPY((char *)&aml_resource_source[1], + resource_source->string_ptr); + + /* + * Add the length of the string (+ 1 for null terminator) to the + * final descriptor length + */ + descriptor_length += + ((acpi_size) resource_source->string_length + 1); + } + + /* Return the new total length of the AML descriptor */ + + return (descriptor_length); +} + +/******************************************************************************* + * * FUNCTION: acpi_rs_get_prt_method_data * * PARAMETERS: Handle - a handle to the containing object @@ -65,8 +497,9 @@ ACPI_MODULE_NAME("rsutils") * and the contents of the callers buffer is undefined. * ******************************************************************************/ + acpi_status -acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) +acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer) { union acpi_operand_object *obj_desc; acpi_status status; @@ -284,7 +717,7 @@ acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer) * Convert the linked list into a byte stream */ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_rs_create_byte_stream(in_buffer->pointer, &buffer); + status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } diff --git a/drivers/acpi/resources/rsxface.c b/drivers/acpi/resources/rsxface.c index 1a87c4c7bd97..9d179beb17ae 100644 --- a/drivers/acpi/resources/rsxface.c +++ b/drivers/acpi/resources/rsxface.c @@ -59,9 +59,9 @@ ACPI_MODULE_NAME("rsxface") ACPI_COPY_FIELD(out, in, max_address_fixed); \ ACPI_COPY_FIELD(out, in, attribute); \ ACPI_COPY_FIELD(out, in, granularity); \ - ACPI_COPY_FIELD(out, in, min_address_range); \ - ACPI_COPY_FIELD(out, in, max_address_range); \ - ACPI_COPY_FIELD(out, in, address_translation_offset); \ + ACPI_COPY_FIELD(out, in, minimum); \ + ACPI_COPY_FIELD(out, in, maximum); \ + ACPI_COPY_FIELD(out, in, translation_offset); \ ACPI_COPY_FIELD(out, in, address_length); \ ACPI_COPY_FIELD(out, in, resource_source); /******************************************************************************* @@ -269,7 +269,7 @@ acpi_walk_resources(acpi_handle device_handle, /* Walk the resource list */ for (;;) { - if (!resource || resource->type == ACPI_RSTYPE_END_TAG) { + if (!resource || resource->type == ACPI_RESOURCE_TYPE_END_TAG) { break; } @@ -382,19 +382,19 @@ acpi_resource_to_address64(struct acpi_resource *resource, struct acpi_resource_address32 *address32; switch (resource->type) { - case ACPI_RSTYPE_ADDRESS16: + case ACPI_RESOURCE_TYPE_ADDRESS16: address16 = (struct acpi_resource_address16 *)&resource->data; ACPI_COPY_ADDRESS(out, address16); break; - case ACPI_RSTYPE_ADDRESS32: + case ACPI_RESOURCE_TYPE_ADDRESS32: address32 = (struct acpi_resource_address32 *)&resource->data; ACPI_COPY_ADDRESS(out, address32); break; - case ACPI_RSTYPE_ADDRESS64: + case ACPI_RESOURCE_TYPE_ADDRESS64: /* Simple copy for 64 bit source */ |