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7730bb13 | 1 | /* SPDX-License-Identifier: GPL-2.0 |
7feb2f78 | 2 | * |
7730bb13 | 3 | * Copyright (C) 2013-15, Intel Corporation. All rights reserved. |
7feb2f78 PLB |
4 | */ |
5 | ||
6 | #ifndef __LINUX_SND_SOC_ACPI_H | |
7 | #define __LINUX_SND_SOC_ACPI_H | |
8 | ||
9 | #include <linux/stddef.h> | |
10 | #include <linux/acpi.h> | |
845ab400 | 11 | #include <linux/mod_devicetable.h> |
7feb2f78 PLB |
12 | |
13 | struct snd_soc_acpi_package_context { | |
14 | char *name; /* package name */ | |
15 | int length; /* number of elements */ | |
16 | struct acpi_buffer *format; | |
17 | struct acpi_buffer *state; | |
18 | bool data_valid; | |
19 | }; | |
20 | ||
2be2d579 PLB |
21 | /* codec name is used in DAIs is i2c-<HID>:00 with HID being 8 chars */ |
22 | #define SND_ACPI_I2C_ID_LEN (4 + ACPI_ID_LEN + 3 + 1) | |
23 | ||
7feb2f78 | 24 | #if IS_ENABLED(CONFIG_ACPI) |
5e484ec1 PLB |
25 | /* acpi match */ |
26 | struct snd_soc_acpi_mach * | |
27 | snd_soc_acpi_find_machine(struct snd_soc_acpi_mach *machines); | |
28 | ||
7feb2f78 PLB |
29 | bool snd_soc_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN], |
30 | struct snd_soc_acpi_package_context *ctx); | |
5e484ec1 PLB |
31 | |
32 | /* check all codecs */ | |
33 | struct snd_soc_acpi_mach *snd_soc_acpi_codec_list(void *arg); | |
34 | ||
7feb2f78 | 35 | #else |
5e484ec1 PLB |
36 | /* acpi match */ |
37 | static inline struct snd_soc_acpi_mach * | |
38 | snd_soc_acpi_find_machine(struct snd_soc_acpi_mach *machines) | |
39 | { | |
40 | return NULL; | |
41 | } | |
42 | ||
7feb2f78 PLB |
43 | static inline bool |
44 | snd_soc_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN], | |
45 | struct snd_soc_acpi_package_context *ctx) | |
46 | { | |
47 | return false; | |
48 | } | |
7feb2f78 | 49 | |
5e484ec1 PLB |
50 | /* check all codecs */ |
51 | static inline struct snd_soc_acpi_mach *snd_soc_acpi_codec_list(void *arg) | |
52 | { | |
53 | return NULL; | |
54 | } | |
55 | #endif | |
7feb2f78 | 56 | |
8679284b PLB |
57 | /** |
58 | * snd_soc_acpi_mach_params: interface for machine driver configuration | |
59 | * | |
60 | * @acpi_ipc_irq_index: used for BYT-CR detection | |
61 | * @platform: string used for HDaudio codec support | |
62 | * @codec_mask: used for HDAudio support | |
63 | */ | |
64 | struct snd_soc_acpi_mach_params { | |
65 | u32 acpi_ipc_irq_index; | |
66 | const char *platform; | |
67 | u32 codec_mask; | |
b92826fa | 68 | u32 dmic_num; |
8679284b PLB |
69 | }; |
70 | ||
7feb2f78 PLB |
71 | /** |
72 | * snd_soc_acpi_mach: ACPI-based machine descriptor. Most of the fields are | |
73 | * related to the hardware, except for the firmware and topology file names. | |
976b5a0e PLB |
74 | * A platform supported by legacy and Sound Open Firmware (SOF) would expose |
75 | * all firmware/topology related fields. | |
7feb2f78 PLB |
76 | * |
77 | * @id: ACPI ID (usually the codec's) used to find a matching machine driver. | |
78 | * @drv_name: machine driver name | |
976b5a0e | 79 | * @fw_filename: firmware file name. Used when SOF is not enabled. |
7feb2f78 PLB |
80 | * @board: board name |
81 | * @machine_quirk: pointer to quirk, usually based on DMI information when | |
82 | * ACPI ID alone is not sufficient, wrong or misleading | |
83 | * @quirk_data: data used to uniquely identify a machine, usually a list of | |
84 | * audio codecs whose presence if checked with ACPI | |
85 | * @pdata: intended for platform data or machine specific-ops. This structure | |
86 | * is not constant since this field may be updated at run-time | |
976b5a0e PLB |
87 | * @sof_fw_filename: Sound Open Firmware file name, if enabled |
88 | * @sof_tplg_filename: Sound Open Firmware topology file name, if enabled | |
7feb2f78 PLB |
89 | */ |
90 | /* Descriptor for SST ASoC machine driver */ | |
91 | struct snd_soc_acpi_mach { | |
92 | const u8 id[ACPI_ID_LEN]; | |
93 | const char *drv_name; | |
94 | const char *fw_filename; | |
95 | const char *board; | |
96 | struct snd_soc_acpi_mach * (*machine_quirk)(void *arg); | |
97 | const void *quirk_data; | |
98 | void *pdata; | |
8679284b | 99 | struct snd_soc_acpi_mach_params mach_params; |
976b5a0e PLB |
100 | const char *sof_fw_filename; |
101 | const char *sof_tplg_filename; | |
7feb2f78 PLB |
102 | }; |
103 | ||
104 | #define SND_SOC_ACPI_MAX_CODECS 3 | |
105 | ||
106 | /** | |
107 | * struct snd_soc_acpi_codecs: Structure to hold secondary codec information | |
108 | * apart from the matched one, this data will be passed to the quirk function | |
109 | * to match with the ACPI detected devices | |
110 | * | |
111 | * @num_codecs: number of secondary codecs used in the platform | |
112 | * @codecs: holds the codec IDs | |
113 | * | |
114 | */ | |
115 | struct snd_soc_acpi_codecs { | |
116 | int num_codecs; | |
117 | u8 codecs[SND_SOC_ACPI_MAX_CODECS][ACPI_ID_LEN]; | |
118 | }; | |
119 | ||
7feb2f78 | 120 | #endif |