83 строки
2.3 KiB
C
83 строки
2.3 KiB
C
/*
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* Copyright (C) 2013-15, Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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* 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/stddef.h>
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#include <linux/acpi.h>
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struct sst_acpi_package_context {
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char *name; /* package name */
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int length; /* number of elements */
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struct acpi_buffer *format;
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struct acpi_buffer *state;
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bool data_valid;
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};
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#if IS_ENABLED(CONFIG_ACPI)
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/* translation fron HID to I2C name, needed for DAI codec_name */
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const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]);
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bool sst_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN],
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struct sst_acpi_package_context *ctx);
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#else
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static inline const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN])
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{
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return NULL;
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}
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static inline bool sst_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN],
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struct sst_acpi_package_context *ctx)
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{
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return false;
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}
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#endif
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/* acpi match */
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struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines);
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/* acpi check hid */
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bool sst_acpi_check_hid(const u8 hid[ACPI_ID_LEN]);
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/* Descriptor for SST ASoC machine driver */
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struct sst_acpi_mach {
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/* ACPI ID for the matching machine driver. Audio codec for instance */
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const u8 id[ACPI_ID_LEN];
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/* machine driver name */
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const char *drv_name;
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/* firmware file name */
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const char *fw_filename;
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/* board name */
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const char *board;
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struct sst_acpi_mach * (*machine_quirk)(void *arg);
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const void *quirk_data;
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void *pdata;
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};
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#define SST_ACPI_MAX_CODECS 3
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/**
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* struct sst_codecs: Structure to hold secondary codec information apart from
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* the matched one, this data will be passed to the quirk function to match
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* with the ACPI detected devices
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*
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* @num_codecs: number of secondary codecs used in the platform
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* @codecs: holds the codec IDs
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*
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*/
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struct sst_codecs {
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int num_codecs;
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u8 codecs[SST_ACPI_MAX_CODECS][ACPI_ID_LEN];
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};
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/* check all codecs */
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struct sst_acpi_mach *sst_acpi_codec_list(void *arg);
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