Commit ac46f5b6 authored by Maciej Strozek's avatar Maciej Strozek Committed by Rafael J. Wysocki
Browse files

ACPICA: Add SoundWire File Table (SWFT) signature 

The File Download (FDL) process of SoundWire Class Audio (SDCA) driver,
which provides code/data which may be required by an SDCA device,
utilizes SWFT to obtain that code/data. There is a single SWFT for the
system, and SWFT can contain multiple files (information about the file
as well as its binary contents). The SWFT has a standard ACPI Descriptor
Table Header, followed by SoundWire File definitions as described in
Discovery and Configuration (DisCo) Specification for SoundWire®

Link: https://github.com/acpica/acpica/commit/18c96022


Signed-off-by: default avatarMaciej Strozek <mstrozek@opensource.cirrus.com>
Reviewed-by: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20250811134505.1162661-1-mstrozek@opensource.cirrus.com


Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 1b237f19

drivers/acpi/tables.c

+1 −1
Original line number Diff line number Diff line
@@ -408,7 +408,7 @@ static const char table_sigs[][ACPI_NAMESEG_SIZE] __nonstring_array __initconst 
	ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT,

	ACPI_SIG_IORT, ACPI_SIG_NFIT, ACPI_SIG_HMAT, ACPI_SIG_PPTT,

	ACPI_SIG_NHLT, ACPI_SIG_AEST, ACPI_SIG_CEDT, ACPI_SIG_AGDI,

	ACPI_SIG_NBFT };

	ACPI_SIG_NBFT, ACPI_SIG_SWFT};



#define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)

include/acpi/actbl2.h

+21 −0
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ 
#define ACPI_SIG_SDEI           "SDEI"	/* Software Delegated Exception Interface Table */

#define ACPI_SIG_SDEV           "SDEV"	/* Secure Devices table */

#define ACPI_SIG_SVKL           "SVKL"	/* Storage Volume Key Location Table */

#define ACPI_SIG_SWFT           "SWFT"	/* SoundWire File Table */

#define ACPI_SIG_TDEL           "TDEL"	/* TD Event Log Table */



/*
@@ -3478,6 +3479,26 @@ enum acpi_svkl_format { 
	ACPI_SVKL_FORMAT_RESERVED = 1	/* 1 and greater are reserved */

};



/*******************************************************************************

 * SWFT - SoundWire File Table

 *

 * Conforms to "Discovery and Configuration (DisCo) Specification for SoundWire"

 * Version 2.1, 2 October 2023

 *

 ******************************************************************************/

struct acpi_sw_file {

	u16 vendor_id;

	u32 file_id;

	u16 file_version;

	u32 file_length;

	u8 data[];

};



struct acpi_table_swft {

	struct acpi_table_header header;

	struct acpi_sw_file files[];

};



/*******************************************************************************

 *

 * TDEL - TD-Event Log