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/* 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__ struct sdw_slave; #define SDCA_MAX_FUNCTION_COUNT 8 /** * sdca_device_desc - short descriptor for an SDCA Function * @adr: ACPI address (used for SDCA register access) * @type: Function topology type * @name: human-readable string */ struct sdca_function_desc { u64 adr; u32 type; const char *name; }; /** * sdca_device_data - structure containing all SDCA related information * @sdca_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. * @sdca_func: array of function descriptors */ struct sdca_device_data { u32 interface_revision; int num_functions; struct sdca_function_desc sdca_func[SDCA_MAX_FUNCTION_COUNT]; }; enum sdca_quirk { SDCA_QUIRKS_RT712_VB, }; #if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SDCA) void sdca_lookup_functions(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_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