LXR linux/sound/soc/intel/common/sst-acpi.h

   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/kconfig.h>
  16#include <linux/stddef.h>
  17#include <linux/acpi.h>
  18
  19/* translation fron HID to I2C name, needed for DAI codec_name */
  20#if IS_ENABLED(CONFIG_ACPI)
  21const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]);
  22#else
  23static inline const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN])
  24{
  25        return NULL;
  26}
  27#endif
  28
  29/* acpi match */
  30struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines);
  31
  32/* Descriptor for SST ASoC machine driver */
  33struct sst_acpi_mach {
  34        /* ACPI ID for the matching machine driver. Audio codec for instance */
  35        const u8 id[ACPI_ID_LEN];
  36        /* machine driver name */
  37        const char *drv_name;
  38        /* firmware file name */
  39        const char *fw_filename;
  40
  41        /* board name */
  42        const char *board;
  43        struct sst_acpi_mach * (*machine_quirk)(void *arg);
  44        void *pdata;
  45};
  46