mirror of
https://github.com/torvalds/linux.git
synced 2026-05-05 23:05:25 -04:00
c4d096c3ca
Add parsing of ACPI DisCo information specific to FDL (File DownLoad). DisCo contains a list of File Sets which can be requested by the device and within each of those a list of individual files to be downloaded to the device. Optionally the contents of the files may also be present in a special ACPI table, called SWFT (SoundWire File Table). Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev> Link: https://patch.msgid.link/20251020155512.353774-14-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
|
|
/*
|
|
* The MIPI SDCA specification is available for public downloads at
|
|
* https://www.mipi.org/mipi-sdca-v1-0-download
|
|
*
|
|
* Copyright(c) 2024 Intel Corporation
|
|
*/
|
|
|
|
#ifndef __SDCA_H__
|
|
#define __SDCA_H__
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/kconfig.h>
|
|
|
|
struct acpi_table_swft;
|
|
struct sdw_slave;
|
|
|
|
#define SDCA_MAX_FUNCTION_COUNT 8
|
|
|
|
/**
|
|
* struct sdca_function_desc - short descriptor for an SDCA Function
|
|
* @node: firmware node for the Function.
|
|
* @name: Human-readable string.
|
|
* @type: Function topology type.
|
|
* @adr: ACPI address (used for SDCA register access).
|
|
*/
|
|
struct sdca_function_desc {
|
|
struct fwnode_handle *node;
|
|
const char *name;
|
|
u32 type;
|
|
u8 adr;
|
|
};
|
|
|
|
/**
|
|
* struct sdca_device_data - structure containing all SDCA related information
|
|
* @interface_revision: Value read from _DSD property, mainly to check
|
|
* for changes between silicon versions.
|
|
* @num_functions: Total number of supported SDCA functions. Invalid/unsupported
|
|
* functions will be skipped.
|
|
* @function: Array of function descriptors.
|
|
* @swft: Pointer to the SWFT table, if available.
|
|
*/
|
|
struct sdca_device_data {
|
|
u32 interface_revision;
|
|
int num_functions;
|
|
struct sdca_function_desc function[SDCA_MAX_FUNCTION_COUNT];
|
|
struct acpi_table_swft *swft;
|
|
};
|
|
|
|
enum sdca_quirk {
|
|
SDCA_QUIRKS_RT712_VB,
|
|
SDCA_QUIRKS_SKIP_FUNC_TYPE_PATCHING,
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SDCA)
|
|
|
|
void sdca_lookup_functions(struct sdw_slave *slave);
|
|
void sdca_lookup_swft(struct sdw_slave *slave);
|
|
void sdca_lookup_interface_revision(struct sdw_slave *slave);
|
|
bool sdca_device_quirk_match(struct sdw_slave *slave, enum sdca_quirk quirk);
|
|
|
|
#else
|
|
|
|
static inline void sdca_lookup_functions(struct sdw_slave *slave) {}
|
|
static inline void sdca_lookup_swft(struct sdw_slave *slave) {}
|
|
static inline void sdca_lookup_interface_revision(struct sdw_slave *slave) {}
|
|
static inline bool sdca_device_quirk_match(struct sdw_slave *slave, enum sdca_quirk quirk)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
#endif
|