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)
  21 const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]);
  22 #else
  23 static 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 */
  30 struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines);
  31
  32 /* Descriptor for SST ASoC machine driver */
  33 struct 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 };