Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192/* 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 fwnode_handle;struct sdw_slave;struct sdca_dev;
#define SDCA_MAX_FUNCTION_COUNT 8
/** * struct sdca_function_desc - short descriptor for an SDCA Function * @node: firmware node for the Function. * @func_dev: pointer to SDCA function device. * @name: Human-readable string. * @type: Function topology type. * @adr: ACPI address (used for SDCA register access). * @duplicate: Internal flag to indicate if other functions of the same type * exist. */struct sdca_function_desc { struct fwnode_handle *node; struct sdca_dev *func_dev; const char *name; u32 type; u8 adr;
bool duplicate;};
/** * 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);int sdca_dev_register_functions(struct sdw_slave *slave);void sdca_dev_unregister_functions(struct sdw_slave *slave);
#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;}
static inline int sdca_dev_register_functions(struct sdw_slave *slave){ return 0;}
static inline void sdca_dev_unregister_functions(struct sdw_slave *slave) {}
#endif
#endif