112 строки
3.6 KiB
C
112 строки
3.6 KiB
C
/*
|
|
* Copyright (C) 2013-15, Intel Corporation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License version
|
|
* 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#ifndef __LINUX_SND_SOC_ACPI_H
|
|
#define __LINUX_SND_SOC_ACPI_H
|
|
|
|
#include <linux/stddef.h>
|
|
#include <linux/acpi.h>
|
|
|
|
struct snd_soc_acpi_package_context {
|
|
char *name; /* package name */
|
|
int length; /* number of elements */
|
|
struct acpi_buffer *format;
|
|
struct acpi_buffer *state;
|
|
bool data_valid;
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_ACPI)
|
|
/* translation fron HID to I2C name, needed for DAI codec_name */
|
|
const char *snd_soc_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]);
|
|
bool snd_soc_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN],
|
|
struct snd_soc_acpi_package_context *ctx);
|
|
#else
|
|
static inline const char *
|
|
snd_soc_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN])
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline bool
|
|
snd_soc_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN],
|
|
struct snd_soc_acpi_package_context *ctx)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
/* acpi match */
|
|
struct snd_soc_acpi_mach *
|
|
snd_soc_acpi_find_machine(struct snd_soc_acpi_mach *machines);
|
|
|
|
/* acpi check hid */
|
|
bool snd_soc_acpi_check_hid(const u8 hid[ACPI_ID_LEN]);
|
|
|
|
/**
|
|
* snd_soc_acpi_mach: ACPI-based machine descriptor. Most of the fields are
|
|
* related to the hardware, except for the firmware and topology file names.
|
|
* A platform supported by legacy and Sound Open Firmware (SOF) would expose
|
|
* all firmware/topology related fields.
|
|
*
|
|
* @id: ACPI ID (usually the codec's) used to find a matching machine driver.
|
|
* @drv_name: machine driver name
|
|
* @fw_filename: firmware file name. Used when SOF is not enabled.
|
|
* @board: board name
|
|
* @machine_quirk: pointer to quirk, usually based on DMI information when
|
|
* ACPI ID alone is not sufficient, wrong or misleading
|
|
* @quirk_data: data used to uniquely identify a machine, usually a list of
|
|
* audio codecs whose presence if checked with ACPI
|
|
* @pdata: intended for platform data or machine specific-ops. This structure
|
|
* is not constant since this field may be updated at run-time
|
|
* @sof_fw_filename: Sound Open Firmware file name, if enabled
|
|
* @sof_tplg_filename: Sound Open Firmware topology file name, if enabled
|
|
* @asoc_plat_name: ASoC platform name, used for binding machine drivers
|
|
* if non NULL
|
|
* @new_mach_data: machine driver private data fixup
|
|
*/
|
|
/* Descriptor for SST ASoC machine driver */
|
|
struct snd_soc_acpi_mach {
|
|
const u8 id[ACPI_ID_LEN];
|
|
const char *drv_name;
|
|
const char *fw_filename;
|
|
const char *board;
|
|
struct snd_soc_acpi_mach * (*machine_quirk)(void *arg);
|
|
const void *quirk_data;
|
|
void *pdata;
|
|
const char *sof_fw_filename;
|
|
const char *sof_tplg_filename;
|
|
const char *asoc_plat_name;
|
|
struct platform_device * (*new_mach_data)(void *pdata);
|
|
};
|
|
|
|
#define SND_SOC_ACPI_MAX_CODECS 3
|
|
|
|
/**
|
|
* struct snd_soc_acpi_codecs: Structure to hold secondary codec information
|
|
* apart from the matched one, this data will be passed to the quirk function
|
|
* to match with the ACPI detected devices
|
|
*
|
|
* @num_codecs: number of secondary codecs used in the platform
|
|
* @codecs: holds the codec IDs
|
|
*
|
|
*/
|
|
struct snd_soc_acpi_codecs {
|
|
int num_codecs;
|
|
u8 codecs[SND_SOC_ACPI_MAX_CODECS][ACPI_ID_LEN];
|
|
};
|
|
|
|
/* check all codecs */
|
|
struct snd_soc_acpi_mach *snd_soc_acpi_codec_list(void *arg);
|
|
|
|
#endif
|