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};