2 * Copyright (C) 2013-15, Intel Corporation. All rights reserved.
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.
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.
15 #include <linux/stddef.h>
16 #include <linux/acpi.h>
18 struct 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;
26 #if IS_ENABLED(CONFIG_ACPI)
27 /* translation fron HID to I2C name, needed for DAI codec_name */
28 const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]);
29 bool sst_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN],
30 struct sst_acpi_package_context *ctx);
32 static inline const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN])
36 static inline bool sst_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN],
37 struct sst_acpi_package_context *ctx)
44 struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines);
47 bool sst_acpi_check_hid(const u8 hid[ACPI_ID_LEN]);
49 /* Descriptor for SST ASoC machine driver */
50 struct sst_acpi_mach {
51 /* ACPI ID for the matching machine driver. Audio codec for instance */
52 const u8 id[ACPI_ID_LEN];
53 /* machine driver name */
55 /* firmware file name */
56 const char *fw_filename;
60 struct sst_acpi_mach * (*machine_quirk)(void *arg);
61 const void *quirk_data;
65 #define SST_ACPI_MAX_CODECS 3
68 * struct sst_codecs: Structure to hold secondary codec information apart from
69 * the matched one, this data will be passed to the quirk function to match
70 * with the ACPI detected devices
72 * @num_codecs: number of secondary codecs used in the platform
73 * @codecs: holds the codec IDs
78 u8 codecs[SST_ACPI_MAX_CODECS][ACPI_ID_LEN];
81 /* check all codecs */
82 struct sst_acpi_mach *sst_acpi_codec_list(void *arg);