1/* 2 * Copyright (C) 2013-15, Intel Corporation. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License version 6 * 2 as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 */ 14 15#include <linux/stddef.h> 16#include <linux/acpi.h> 17 18struct sst_acpi_package_context { 19 char *name; /* package name */ 20 int length; /* number of elements */ 21 struct acpi_buffer *format; 22 struct acpi_buffer *state; 23 bool data_valid; 24}; 25 26#if IS_ENABLED(CONFIG_ACPI) 27/* translation fron HID to I2C name, needed for DAI codec_name */ 28const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]); 29bool sst_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN], 30 struct sst_acpi_package_context *ctx); 31#else 32static inline const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]) 33{ 34 return NULL; 35} 36static inline bool sst_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN], 37 struct sst_acpi_package_context *ctx) 38{ 39 return false; 40} 41#endif 42 43/* acpi match */ 44struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines); 45 46/* Descriptor for SST ASoC machine driver */ 47struct sst_acpi_mach { 48 /* ACPI ID for the matching machine driver. Audio codec for instance */ 49 const u8 id[ACPI_ID_LEN]; 50 /* machine driver name */ 51 const char *drv_name; 52 /* firmware file name */ 53 const char *fw_filename; 54 55 /* board name */ 56 const char *board; 57 struct sst_acpi_mach * (*machine_quirk)(void *arg); 58 void *pdata; 59}; 60