forked from Minki/linux
691 lines
21 KiB
C
691 lines
21 KiB
C
/*
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* Universal Interface for Intel High Definition Audio Codec
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*
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* Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __SOUND_HDA_CODEC_H
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#define __SOUND_HDA_CODEC_H
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#include <sound/info.h>
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#include <sound/control.h>
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#include <sound/pcm.h>
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#include <sound/hwdep.h>
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#include <sound/hda_verbs.h>
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/*
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* generic arrays
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*/
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struct snd_array {
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unsigned int used;
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unsigned int alloced;
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unsigned int elem_size;
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unsigned int alloc_align;
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void *list;
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};
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void *snd_array_new(struct snd_array *array);
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void snd_array_free(struct snd_array *array);
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static inline void snd_array_init(struct snd_array *array, unsigned int size,
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unsigned int align)
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{
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array->elem_size = size;
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array->alloc_align = align;
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}
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static inline void *snd_array_elem(struct snd_array *array, unsigned int idx)
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{
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return array->list + idx * array->elem_size;
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}
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static inline unsigned int snd_array_index(struct snd_array *array, void *ptr)
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{
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return (unsigned long)(ptr - array->list) / array->elem_size;
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}
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/*
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* Structures
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*/
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struct hda_bus;
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struct hda_beep;
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struct hda_codec;
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struct hda_pcm;
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struct hda_pcm_stream;
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struct hda_bus_unsolicited;
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/* NID type */
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typedef u16 hda_nid_t;
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/* bus operators */
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struct hda_bus_ops {
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/* send a single command */
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int (*command)(struct hda_bus *bus, unsigned int cmd);
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/* get a response from the last command */
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unsigned int (*get_response)(struct hda_bus *bus, unsigned int addr);
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/* free the private data */
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void (*private_free)(struct hda_bus *);
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/* attach a PCM stream */
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int (*attach_pcm)(struct hda_bus *bus, struct hda_codec *codec,
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struct hda_pcm *pcm);
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/* reset bus for retry verb */
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void (*bus_reset)(struct hda_bus *bus);
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#ifdef CONFIG_PM
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/* notify power-up/down from codec to controller */
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void (*pm_notify)(struct hda_bus *bus, bool power_up);
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#endif
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#ifdef CONFIG_SND_HDA_DSP_LOADER
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/* prepare DSP transfer */
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int (*load_dsp_prepare)(struct hda_bus *bus, unsigned int format,
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unsigned int byte_size,
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struct snd_dma_buffer *bufp);
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/* start/stop DSP transfer */
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void (*load_dsp_trigger)(struct hda_bus *bus, bool start);
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/* clean up DSP transfer */
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void (*load_dsp_cleanup)(struct hda_bus *bus,
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struct snd_dma_buffer *dmab);
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#endif
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};
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/* template to pass to the bus constructor */
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struct hda_bus_template {
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void *private_data;
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struct pci_dev *pci;
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const char *modelname;
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int *power_save;
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struct hda_bus_ops ops;
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};
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/*
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* codec bus
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*
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* each controller needs to creata a hda_bus to assign the accessor.
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* A hda_bus contains several codecs in the list codec_list.
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*/
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struct hda_bus {
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struct snd_card *card;
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/* copied from template */
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void *private_data;
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struct pci_dev *pci;
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const char *modelname;
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int *power_save;
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struct hda_bus_ops ops;
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/* codec linked list */
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struct list_head codec_list;
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unsigned int num_codecs;
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/* link caddr -> codec */
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struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];
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struct mutex cmd_mutex;
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struct mutex prepare_mutex;
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/* unsolicited event queue */
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struct hda_bus_unsolicited *unsol;
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char workq_name[16];
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struct workqueue_struct *workq; /* common workqueue for codecs */
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/* assigned PCMs */
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DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);
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/* misc op flags */
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unsigned int needs_damn_long_delay :1;
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unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
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unsigned int sync_write:1; /* sync after verb write */
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/* status for codec/controller */
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unsigned int shutdown :1; /* being unloaded */
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unsigned int rirb_error:1; /* error in codec communication */
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unsigned int response_reset:1; /* controller was reset */
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unsigned int in_reset:1; /* during reset operation */
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unsigned int power_keep_link_on:1; /* don't power off HDA link */
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unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
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int primary_dig_out_type; /* primary digital out PCM type */
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};
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/*
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* codec preset
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*
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* Known codecs have the patch to build and set up the controls/PCMs
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* better than the generic parser.
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*/
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struct hda_codec_preset {
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unsigned int id;
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unsigned int mask;
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unsigned int subs;
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unsigned int subs_mask;
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unsigned int rev;
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hda_nid_t afg, mfg;
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const char *name;
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int (*patch)(struct hda_codec *codec);
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};
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struct hda_codec_preset_list {
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const struct hda_codec_preset *preset;
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struct module *owner;
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struct list_head list;
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};
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/* initial hook */
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int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset);
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int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset);
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/* ops set by the preset patch */
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struct hda_codec_ops {
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int (*build_controls)(struct hda_codec *codec);
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int (*build_pcms)(struct hda_codec *codec);
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int (*init)(struct hda_codec *codec);
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void (*free)(struct hda_codec *codec);
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void (*unsol_event)(struct hda_codec *codec, unsigned int res);
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void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
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unsigned int power_state);
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#ifdef CONFIG_PM
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int (*suspend)(struct hda_codec *codec);
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int (*resume)(struct hda_codec *codec);
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int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
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#endif
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void (*reboot_notify)(struct hda_codec *codec);
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};
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/* record for amp information cache */
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struct hda_cache_head {
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u32 key:31; /* hash key */
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u32 dirty:1;
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u16 val; /* assigned value */
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u16 next;
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};
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struct hda_amp_info {
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struct hda_cache_head head;
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u32 amp_caps; /* amp capabilities */
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u16 vol[2]; /* current volume & mute */
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};
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struct hda_cache_rec {
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u16 hash[64]; /* hash table for index */
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struct snd_array buf; /* record entries */
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};
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/* PCM callbacks */
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struct hda_pcm_ops {
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int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
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struct snd_pcm_substream *substream);
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int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
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struct snd_pcm_substream *substream);
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int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
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unsigned int stream_tag, unsigned int format,
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struct snd_pcm_substream *substream);
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int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
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struct snd_pcm_substream *substream);
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unsigned int (*get_delay)(struct hda_pcm_stream *info,
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struct hda_codec *codec,
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struct snd_pcm_substream *substream);
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};
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/* PCM information for each substream */
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struct hda_pcm_stream {
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unsigned int substreams; /* number of substreams, 0 = not exist*/
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unsigned int channels_min; /* min. number of channels */
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unsigned int channels_max; /* max. number of channels */
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hda_nid_t nid; /* default NID to query rates/formats/bps, or set up */
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u32 rates; /* supported rates */
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u64 formats; /* supported formats (SNDRV_PCM_FMTBIT_) */
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unsigned int maxbps; /* supported max. bit per sample */
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const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
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struct hda_pcm_ops ops;
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};
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/* PCM types */
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enum {
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HDA_PCM_TYPE_AUDIO,
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HDA_PCM_TYPE_SPDIF,
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HDA_PCM_TYPE_HDMI,
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HDA_PCM_TYPE_MODEM,
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HDA_PCM_NTYPES
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};
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/* for PCM creation */
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struct hda_pcm {
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char *name;
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struct hda_pcm_stream stream[2];
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unsigned int pcm_type; /* HDA_PCM_TYPE_XXX */
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int device; /* device number to assign */
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struct snd_pcm *pcm; /* assigned PCM instance */
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bool own_chmap; /* codec driver provides own channel maps */
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};
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/* codec information */
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struct hda_codec {
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struct device dev;
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struct hda_bus *bus;
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unsigned int addr; /* codec addr*/
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struct list_head list; /* list point */
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hda_nid_t afg; /* AFG node id */
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hda_nid_t mfg; /* MFG node id */
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/* ids */
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u8 afg_function_id;
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u8 mfg_function_id;
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u8 afg_unsol;
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u8 mfg_unsol;
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u32 vendor_id;
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u32 subsystem_id;
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u32 revision_id;
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/* detected preset */
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const struct hda_codec_preset *preset;
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struct module *owner;
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int (*parser)(struct hda_codec *codec);
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const char *vendor_name; /* codec vendor name */
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const char *chip_name; /* codec chip name */
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const char *modelname; /* model name for preset */
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/* set by patch */
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struct hda_codec_ops patch_ops;
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/* PCM to create, set by patch_ops.build_pcms callback */
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unsigned int num_pcms;
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struct hda_pcm *pcm_info;
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/* codec specific info */
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void *spec;
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/* beep device */
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struct hda_beep *beep;
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unsigned int beep_mode;
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/* widget capabilities cache */
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unsigned int num_nodes;
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hda_nid_t start_nid;
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u32 *wcaps;
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struct snd_array mixers; /* list of assigned mixer elements */
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struct snd_array nids; /* list of mapped mixer elements */
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struct hda_cache_rec amp_cache; /* cache for amp access */
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struct hda_cache_rec cmd_cache; /* cache for other commands */
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struct list_head conn_list; /* linked-list of connection-list */
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struct mutex spdif_mutex;
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struct mutex control_mutex;
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struct mutex hash_mutex;
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struct snd_array spdif_out;
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unsigned int spdif_in_enable; /* SPDIF input enable? */
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const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
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struct snd_array init_pins; /* initial (BIOS) pin configurations */
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struct snd_array driver_pins; /* pin configs set by codec parser */
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struct snd_array cvt_setups; /* audio convert setups */
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struct mutex user_mutex;
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#ifdef CONFIG_SND_HDA_RECONFIG
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struct snd_array init_verbs; /* additional init verbs */
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struct snd_array hints; /* additional hints */
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struct snd_array user_pins; /* default pin configs to override */
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#endif
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#ifdef CONFIG_SND_HDA_HWDEP
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struct snd_hwdep *hwdep; /* assigned hwdep device */
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#endif
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/* misc flags */
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unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
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* status change
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* (e.g. Realtek codecs)
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*/
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unsigned int pin_amp_workaround:1; /* pin out-amp takes index
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* (e.g. Conexant codecs)
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*/
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unsigned int single_adc_amp:1; /* adc in-amp takes no index
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* (e.g. CX20549 codec)
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*/
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unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
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unsigned int pins_shutup:1; /* pins are shut up */
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unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
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unsigned int no_jack_detect:1; /* Machine has no jack-detection */
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unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
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unsigned int inv_jack_detect:1; /* broken h/w: inverted detection bit */
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unsigned int pcm_format_first:1; /* PCM format must be set first */
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unsigned int epss:1; /* supporting EPSS? */
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unsigned int cached_write:1; /* write only to caches */
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unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
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unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
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#ifdef CONFIG_PM
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unsigned int power_on :1; /* current (global) power-state */
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unsigned int d3_stop_clk:1; /* support D3 operation without BCLK */
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unsigned int pm_up_notified:1; /* PM notified to controller */
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unsigned int in_pm:1; /* suspend/resume being performed */
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int power_transition; /* power-state in transition */
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int power_count; /* current (global) power refcount */
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struct delayed_work power_work; /* delayed task for powerdown */
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unsigned long power_on_acct;
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unsigned long power_off_acct;
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unsigned long power_jiffies;
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spinlock_t power_lock;
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#endif
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/* filter the requested power state per nid */
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unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
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unsigned int power_state);
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/* codec-specific additional proc output */
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void (*proc_widget_hook)(struct snd_info_buffer *buffer,
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struct hda_codec *codec, hda_nid_t nid);
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/* jack detection */
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struct snd_array jacktbl;
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unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
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struct delayed_work jackpoll_work;
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#ifdef CONFIG_SND_HDA_INPUT_JACK
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/* jack detection */
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struct snd_array jacks;
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#endif
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int depop_delay; /* depop delay in ms, -1 for default delay time */
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/* fix-up list */
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int fixup_id;
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const struct hda_fixup *fixup_list;
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const char *fixup_name;
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/* additional init verbs */
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struct snd_array verbs;
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};
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/* direction */
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enum {
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HDA_INPUT, HDA_OUTPUT
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};
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/* snd_hda_codec_read/write optional flags */
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#define HDA_RW_NO_RESPONSE_FALLBACK (1 << 0)
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/*
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* constructors
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*/
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int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
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struct hda_bus **busp);
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int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
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struct hda_codec **codecp);
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int snd_hda_codec_configure(struct hda_codec *codec);
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int snd_hda_codec_update_widgets(struct hda_codec *codec);
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/*
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* low level functions
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*/
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unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
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int flags,
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unsigned int verb, unsigned int parm);
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int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
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unsigned int verb, unsigned int parm);
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#define snd_hda_param_read(codec, nid, param) \
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snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
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int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
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hda_nid_t *start_id);
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int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
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hda_nid_t *conn_list, int max_conns);
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static inline int
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snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
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{
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return snd_hda_get_connections(codec, nid, NULL, 0);
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}
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int snd_hda_get_num_raw_conns(struct hda_codec *codec, hda_nid_t nid);
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int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
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hda_nid_t *conn_list, int max_conns);
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int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
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const hda_nid_t **listp);
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int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
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const hda_nid_t *list);
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int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
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hda_nid_t nid, int recursive);
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int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
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u8 *dev_list, int max_devices);
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int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
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u32 *ratesp, u64 *formatsp, unsigned int *bpsp);
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struct hda_verb {
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hda_nid_t nid;
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u32 verb;
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u32 param;
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};
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void snd_hda_sequence_write(struct hda_codec *codec,
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const struct hda_verb *seq);
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/* unsolicited event */
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int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex);
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/* cached write */
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int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
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int flags, unsigned int verb, unsigned int parm);
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void snd_hda_sequence_write_cache(struct hda_codec *codec,
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const struct hda_verb *seq);
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int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
|
|
int flags, unsigned int verb, unsigned int parm);
|
|
void snd_hda_codec_resume_cache(struct hda_codec *codec);
|
|
/* both for cmd & amp caches */
|
|
void snd_hda_codec_flush_cache(struct hda_codec *codec);
|
|
|
|
/* the struct for codec->pin_configs */
|
|
struct hda_pincfg {
|
|
hda_nid_t nid;
|
|
unsigned char ctrl; /* original pin control value */
|
|
unsigned char target; /* target pin control value */
|
|
unsigned int cfg; /* default configuration */
|
|
};
|
|
|
|
unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
|
|
int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
|
|
unsigned int cfg);
|
|
int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
|
|
hda_nid_t nid, unsigned int cfg); /* for hwdep */
|
|
void snd_hda_shutup_pins(struct hda_codec *codec);
|
|
|
|
/* SPDIF controls */
|
|
struct hda_spdif_out {
|
|
hda_nid_t nid; /* Converter nid values relate to */
|
|
unsigned int status; /* IEC958 status bits */
|
|
unsigned short ctls; /* SPDIF control bits */
|
|
};
|
|
struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
|
|
hda_nid_t nid);
|
|
void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
|
|
void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);
|
|
|
|
/*
|
|
* Mixer
|
|
*/
|
|
int snd_hda_build_controls(struct hda_bus *bus);
|
|
int snd_hda_codec_build_controls(struct hda_codec *codec);
|
|
|
|
/*
|
|
* PCM
|
|
*/
|
|
int snd_hda_build_pcms(struct hda_bus *bus);
|
|
int snd_hda_codec_build_pcms(struct hda_codec *codec);
|
|
|
|
int snd_hda_codec_prepare(struct hda_codec *codec,
|
|
struct hda_pcm_stream *hinfo,
|
|
unsigned int stream,
|
|
unsigned int format,
|
|
struct snd_pcm_substream *substream);
|
|
void snd_hda_codec_cleanup(struct hda_codec *codec,
|
|
struct hda_pcm_stream *hinfo,
|
|
struct snd_pcm_substream *substream);
|
|
|
|
void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
|
|
u32 stream_tag,
|
|
int channel_id, int format);
|
|
void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
|
|
int do_now);
|
|
#define snd_hda_codec_cleanup_stream(codec, nid) \
|
|
__snd_hda_codec_cleanup_stream(codec, nid, 0)
|
|
unsigned int snd_hda_calc_stream_format(struct hda_codec *codec,
|
|
unsigned int rate,
|
|
unsigned int channels,
|
|
unsigned int format,
|
|
unsigned int maxbps,
|
|
unsigned short spdif_ctls);
|
|
int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
|
|
unsigned int format);
|
|
|
|
extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
|
|
|
|
/*
|
|
* Misc
|
|
*/
|
|
void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
|
|
void snd_hda_bus_reboot_notify(struct hda_bus *bus);
|
|
void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
|
|
unsigned int power_state);
|
|
|
|
int snd_hda_lock_devices(struct hda_bus *bus);
|
|
void snd_hda_unlock_devices(struct hda_bus *bus);
|
|
|
|
/*
|
|
* power management
|
|
*/
|
|
#ifdef CONFIG_PM
|
|
int snd_hda_suspend(struct hda_bus *bus);
|
|
int snd_hda_resume(struct hda_bus *bus);
|
|
#endif
|
|
|
|
static inline
|
|
int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
|
|
{
|
|
#ifdef CONFIG_PM
|
|
if (codec->patch_ops.check_power_status)
|
|
return codec->patch_ops.check_power_status(codec, nid);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* get widget information
|
|
*/
|
|
const char *snd_hda_get_jack_connectivity(u32 cfg);
|
|
const char *snd_hda_get_jack_type(u32 cfg);
|
|
const char *snd_hda_get_jack_location(u32 cfg);
|
|
|
|
/*
|
|
* power saving
|
|
*/
|
|
#ifdef CONFIG_PM
|
|
void snd_hda_power_save(struct hda_codec *codec, int delta, bool d3wait);
|
|
void snd_hda_update_power_acct(struct hda_codec *codec);
|
|
#else
|
|
static inline void snd_hda_power_save(struct hda_codec *codec, int delta,
|
|
bool d3wait) {}
|
|
#endif
|
|
|
|
/**
|
|
* snd_hda_power_up - Power-up the codec
|
|
* @codec: HD-audio codec
|
|
*
|
|
* Increment the power-up counter and power up the hardware really when
|
|
* not turned on yet.
|
|
*/
|
|
static inline void snd_hda_power_up(struct hda_codec *codec)
|
|
{
|
|
snd_hda_power_save(codec, 1, false);
|
|
}
|
|
|
|
/**
|
|
* snd_hda_power_up_d3wait - Power-up the codec after waiting for any pending
|
|
* D3 transition to complete. This differs from snd_hda_power_up() when
|
|
* power_transition == -1. snd_hda_power_up sees this case as a nop,
|
|
* snd_hda_power_up_d3wait waits for the D3 transition to complete then powers
|
|
* back up.
|
|
* @codec: HD-audio codec
|
|
*
|
|
* Cancel any power down operation hapenning on the work queue, then power up.
|
|
*/
|
|
static inline void snd_hda_power_up_d3wait(struct hda_codec *codec)
|
|
{
|
|
snd_hda_power_save(codec, 1, true);
|
|
}
|
|
|
|
/**
|
|
* snd_hda_power_down - Power-down the codec
|
|
* @codec: HD-audio codec
|
|
*
|
|
* Decrement the power-up counter and schedules the power-off work if
|
|
* the counter rearches to zero.
|
|
*/
|
|
static inline void snd_hda_power_down(struct hda_codec *codec)
|
|
{
|
|
snd_hda_power_save(codec, -1, false);
|
|
}
|
|
|
|
/**
|
|
* snd_hda_power_sync - Synchronize the power-save status
|
|
* @codec: HD-audio codec
|
|
*
|
|
* Synchronize the actual power state with the power account;
|
|
* called when power_save parameter is changed
|
|
*/
|
|
static inline void snd_hda_power_sync(struct hda_codec *codec)
|
|
{
|
|
snd_hda_power_save(codec, 0, false);
|
|
}
|
|
|
|
#ifdef CONFIG_SND_HDA_PATCH_LOADER
|
|
/*
|
|
* patch firmware
|
|
*/
|
|
int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
|
|
#endif
|
|
|
|
#ifdef CONFIG_SND_HDA_DSP_LOADER
|
|
static inline int
|
|
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
|
|
unsigned int size,
|
|
struct snd_dma_buffer *bufp)
|
|
{
|
|
return codec->bus->ops.load_dsp_prepare(codec->bus, format, size, bufp);
|
|
}
|
|
static inline void
|
|
snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start)
|
|
{
|
|
return codec->bus->ops.load_dsp_trigger(codec->bus, start);
|
|
}
|
|
static inline void
|
|
snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
|
|
struct snd_dma_buffer *dmab)
|
|
{
|
|
return codec->bus->ops.load_dsp_cleanup(codec->bus, dmab);
|
|
}
|
|
#else
|
|
static inline int
|
|
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
|
|
unsigned int size,
|
|
struct snd_dma_buffer *bufp)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
static inline void
|
|
snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
|
|
static inline void
|
|
snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
|
|
struct snd_dma_buffer *dmab) {}
|
|
#endif
|
|
|
|
#endif /* __SOUND_HDA_CODEC_H */
|