FM / sound

/usr/src/linux-headers-5.15.0-181/include/sound/

/usr/src/linux-headers-5.15.0-181/include/sound

Name	Size	Mode	Actions
ac97/	-	0755	rm
sof/	-	0755	rm
ac97_codec.h	16044	0644	edit dl rm
aci.h	2458	0644	edit dl rm
ad1816a.h	4843	0644	edit dl rm
ad1843.h	1516	0644	edit dl rm
adau1373.h	706	0644	edit dl rm
ak4xxx-adda.h	2724	0644	edit dl rm
ak4113.h	10461	0644	edit dl rm
ak4114.h	9773	0644	edit dl rm
ak4117.h	8542	0644	edit dl rm
ak4531_codec.h	2478	0644	edit dl rm
ak4641.h	476	0644	edit dl rm
alc5623.h	536	0644	edit dl rm
asequencer.h	2975	0644	edit dl rm
asound.h	590	0644	edit dl rm
asoundef.h	16403	0644	edit dl rm
compress_driver.h	7986	0644	edit dl rm
control.h	9958	0644	edit dl rm
core.h	15895	0644	edit dl rm
cs35l33.h	888	0644	edit dl rm
cs35l34.h	741	0644	edit dl rm
cs35l35.h	2267	0644	edit dl rm
cs35l36.h	772	0644	edit dl rm
cs35l41.h	30889	0644	edit dl rm
cs42l42.h	35149	0644	edit dl rm
cs42l52.h	592	0644	edit dl rm
cs42l56.h	1046	0644	edit dl rm
cs42l73.h	361	0644	edit dl rm
cs4231-regs.h	7785	0644	edit dl rm
cs4271.h	961	0644	edit dl rm
cs8403.h	8138	0644	edit dl rm
cs8427.h	9954	0644	edit dl rm
da7213.h	1032	0644	edit dl rm
da7218.h	2468	0644	edit dl rm
da7219-aad.h	2263	0644	edit dl rm
da7219.h	998	0644	edit dl rm
da9055.h	707	0644	edit dl rm
designware_i2s.h	1631	0644	edit dl rm
dmaengine_pcm.h	6913	0644	edit dl rm
emu10k1.h	90722	0644	edit dl rm
emu10k1_synth.h	693	0644	edit dl rm
emu8000.h	3333	0644	edit dl rm
emu8000_reg.h	9767	0644	edit dl rm
emux_legacy.h	4811	0644	edit dl rm
emux_synth.h	6948	0644	edit dl rm
es1688.h	2923	0644	edit dl rm
graph_card.h	271	0644	edit dl rm
gus.h	20119	0644	edit dl rm
hdaudio.h	21538	0644	edit dl rm
hdaudio_ext.h	5680	0644	edit dl rm
hda_chmap.h	2660	0644	edit dl rm
hda_codec.h	17669	0644	edit dl rm
hda_component.h	2085	0644	edit dl rm
hda_hwdep.h	736	0644	edit dl rm
hda_i915.h	589	0644	edit dl rm
hda_register.h	10655	0644	edit dl rm
hda_regmap.h	6934	0644	edit dl rm
hda_verbs.h	17296	0644	edit dl rm
hdmi-codec.h	3011	0644	edit dl rm
hwdep.h	1925	0644	edit dl rm
i2c.h	2857	0644	edit dl rm
info.h	8053	0644	edit dl rm
initval.h	2484	0644	edit dl rm
intel-dsp-config.h	869	0644	edit dl rm
intel-nhlt.h	2851	0644	edit dl rm
jack.h	3172	0644	edit dl rm
l3.h	524	0644	edit dl rm
madera-pdata.h	1996	0644	edit dl rm
max9768.h	729	0644	edit dl rm
max98088.h	1074	0644	edit dl rm
max98090.h	534	0644	edit dl rm
max98095.h	1357	0644	edit dl rm
memalloc.h	2642	0644	edit dl rm
minors.h	3738	0644	edit dl rm
mixer_oss.h	1773	0644	edit dl rm
mpu401.h	3905	0644	edit dl rm
omap-hdmi-audio.h	971	0644	edit dl rm
opl3.h	11909	0644	edit dl rm
opl4.h	459	0644	edit dl rm
pcm-indirect.h	5159	0644	edit dl rm
pcm.h	53684	0644	edit dl rm
pcm_drm_eld.h	183	0644	edit dl rm
pcm_iec958.h	597	0644	edit dl rm
pcm_oss.h	2063	0644	edit dl rm
pcm_params.h	8864	0644	edit dl rm
pt2258.h	513	0644	edit dl rm
pxa2xx-lib.h	2190	0644	edit dl rm
rawmidi.h	5881	0644	edit dl rm
rt286.h	314	0644	edit dl rm
rt298.h	373	0644	edit dl rm
rt1015.h	283	0644	edit dl rm
rt5514.h	399	0644	edit dl rm
rt5659.h	880	0644	edit dl rm
rt5660.h	578	0644	edit dl rm
rt5663.h	476	0644	edit dl rm
rt5665.h	761	0644	edit dl rm
rt5668.h	646	0644	edit dl rm
rt5682.h	901	0644	edit dl rm
s3c24xx_uda134x.h	229	0644	edit dl rm
sb.h	10550	0644	edit dl rm
sb16_csp.h	2100	0644	edit dl rm
seq_device.h	2165	0644	edit dl rm
seq_kernel.h	3378	0644	edit dl rm
seq_midi_emul.h	6757	0644	edit dl rm
seq_midi_event.h	1356	0644	edit dl rm
seq_oss.h	2264	0644	edit dl rm
seq_oss_legacy.h	360	0644	edit dl rm
seq_virmidi.h	2123	0644	edit dl rm
sh_dac_audio.h	441	0644	edit dl rm
sh_fsi.h	693	0644	edit dl rm
simple_card.h	529	0644	edit dl rm
simple_card_utils.h	8351	0644	edit dl rm
snd_wavefront.h	5620	0644	edit dl rm
soc-acpi-intel-match.h	2074	0644	edit dl rm
soc-acpi.h	5637	0644	edit dl rm
soc-card.h	2944	0644	edit dl rm
soc-component.h	19387	0644	edit dl rm
soc-dai.h	19957	0644	edit dl rm
soc-dapm.h	32957	0644	edit dl rm
soc-dpcm.h	5523	0644	edit dl rm
soc-jack.h	3822	0644	edit dl rm
soc-link.h	1172	0644	edit dl rm
soc-topology.h	5835	0644	edit dl rm
soc.h	47899	0644	edit dl rm
sof.h	2596	0644	edit dl rm
soundfont.h	3903	0644	edit dl rm
spear_dma.h	350	0644	edit dl rm
spear_spdif.h	345	0644	edit dl rm
sta32x.h	1015	0644	edit dl rm
sta350.h	1474	0644	edit dl rm
tas2552-plat.h	283	0644	edit dl rm
tas5086.h	210	0644	edit dl rm
tea6330t.h	468	0644	edit dl rm
timer.h	5109	0644	edit dl rm
tlv.h	1627	0644	edit dl rm
tlv320aic3x.h	1777	0644	edit dl rm
tlv320aic32x4.h	1320	0644	edit dl rm
tlv320dac33-plat.h	574	0644	edit dl rm
tpa6130a2-plat.h	291	0644	edit dl rm
uda134x.h	451	0644	edit dl rm
uda1380.h	335	0644	edit dl rm
util_mem.h	1623	0644	edit dl rm
vx_core.h	15055	0644	edit dl rm
wavefront.h	18518	0644	edit dl rm
wm0010.h	466	0644	edit dl rm
wm1250-ev1.h	510	0644	edit dl rm
wm2000.h	479	0644	edit dl rm
wm2200.h	1353	0644	edit dl rm
wm5100.h	1129	0644	edit dl rm
wm8903.h	15377	0644	edit dl rm
wm8904.h	7389	0644	edit dl rm
wm8955.h	442	0644	edit dl rm
wm8960.h	888	0644	edit dl rm
wm8962.h	1694	0644	edit dl rm
wm8993.h	1076	0644	edit dl rm
wm8996.h	1289	0644	edit dl rm
wm9081.h	515	0644	edit dl rm
wm9090.h	634	0644	edit dl rm
wss.h	7949	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/include/sound/hda_codec.h (17669B)

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
 */

#ifndef __SOUND_HDA_CODEC_H
#define __SOUND_HDA_CODEC_H

#include <linux/refcount.h>
#include <linux/mod_devicetable.h>
#include <sound/info.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/hwdep.h>
#include <sound/hdaudio.h>
#include <sound/hda_verbs.h>
#include <sound/hda_regmap.h>

#define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
#define IS_CFL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa348)

/*
 * Structures
 */

struct hda_bus;
struct hda_beep;
struct hda_codec;
struct hda_pcm;
struct hda_pcm_stream;

/*
 * codec bus
 *
 * each controller needs to creata a hda_bus to assign the accessor.
 * A hda_bus contains several codecs in the list codec_list.
 */
struct hda_bus {
	struct hdac_bus core;

struct snd_card *card;

struct pci_dev *pci;
	const char *modelname;

struct mutex prepare_mutex;

/* assigned PCMs */
	DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);

/* misc op flags */
	unsigned int allow_bus_reset:1;	/* allow bus reset at fatal error */
	/* status for codec/controller */
	unsigned int shutdown :1;	/* being unloaded */
	unsigned int response_reset:1;	/* controller was reset */
	unsigned int in_reset:1;	/* during reset operation */
	unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
	unsigned int bus_probing :1;	/* during probing process */
	unsigned int keep_power:1;	/* keep power up for notification */

int primary_dig_out_type;	/* primary digital out PCM type */
	unsigned int mixer_assigned;	/* codec addr for mixer name */
};

/* from hdac_bus to hda_bus */
#define to_hda_bus(bus)		container_of(bus, struct hda_bus, core)

/*
 * codec preset
 *
 * Known codecs have the patch to build and set up the controls/PCMs
 * better than the generic parser.
 */
typedef int (*hda_codec_patch_t)(struct hda_codec *);
	
#define HDA_CODEC_ID_SKIP_PROBE		0x00000001
#define HDA_CODEC_ID_GENERIC_HDMI	0x00000101
#define HDA_CODEC_ID_GENERIC		0x00000201

#define HDA_CODEC_REV_ENTRY(_vid, _rev, _name, _patch) \
	{ .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
	  .api_version = HDA_DEV_LEGACY, \
	  .driver_data = (unsigned long)(_patch) }
#define HDA_CODEC_ENTRY(_vid, _name, _patch) \
	HDA_CODEC_REV_ENTRY(_vid, 0, _name, _patch)

struct hda_codec_driver {
	struct hdac_driver core;
	const struct hda_device_id *id;
};

int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
			       struct module *owner);
#define hda_codec_driver_register(drv) \
	__hda_codec_driver_register(drv, KBUILD_MODNAME, THIS_MODULE)
void hda_codec_driver_unregister(struct hda_codec_driver *drv);
#define module_hda_codec_driver(drv) \
	module_driver(drv, hda_codec_driver_register, \
		      hda_codec_driver_unregister)

/* ops set by the preset patch */
struct hda_codec_ops {
	int (*build_controls)(struct hda_codec *codec);
	int (*build_pcms)(struct hda_codec *codec);
	int (*init)(struct hda_codec *codec);
	void (*free)(struct hda_codec *codec);
	void (*unsol_event)(struct hda_codec *codec, unsigned int res);
	void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
				unsigned int power_state);
#ifdef CONFIG_PM
	int (*suspend)(struct hda_codec *codec);
	int (*resume)(struct hda_codec *codec);
	int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
#endif
	void (*stream_pm)(struct hda_codec *codec, hda_nid_t nid, bool on);
};

/* PCM callbacks */
struct hda_pcm_ops {
	int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
		    struct snd_pcm_substream *substream);
	int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
		     struct snd_pcm_substream *substream);
	int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
		       unsigned int stream_tag, unsigned int format,
		       struct snd_pcm_substream *substream);
	int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
		       struct snd_pcm_substream *substream);
	unsigned int (*get_delay)(struct hda_pcm_stream *info,
				  struct hda_codec *codec,
				  struct snd_pcm_substream *substream);
};

/* PCM information for each substream */
struct hda_pcm_stream {
	unsigned int substreams;	/* number of substreams, 0 = not exist*/
	unsigned int channels_min;	/* min. number of channels */
	unsigned int channels_max;	/* max. number of channels */
	hda_nid_t nid;	/* default NID to query rates/formats/bps, or set up */
	u32 rates;	/* supported rates */
	u64 formats;	/* supported formats (SNDRV_PCM_FMTBIT_) */
	unsigned int maxbps;	/* supported max. bit per sample */
	const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
	struct hda_pcm_ops ops;
};

/* PCM types */
enum {
	HDA_PCM_TYPE_AUDIO,
	HDA_PCM_TYPE_SPDIF,
	HDA_PCM_TYPE_HDMI,
	HDA_PCM_TYPE_MODEM,
	HDA_PCM_NTYPES
};

#define SNDRV_PCM_INVALID_DEVICE	(-1)
/* for PCM creation */
struct hda_pcm {
	char *name;
	struct hda_pcm_stream stream[2];
	unsigned int pcm_type;	/* HDA_PCM_TYPE_XXX */
	int device;		/* device number to assign */
	struct snd_pcm *pcm;	/* assigned PCM instance */
	bool own_chmap;		/* codec driver provides own channel maps */
	/* private: */
	struct hda_codec *codec;
	struct list_head list;
	unsigned int disconnected:1;
};

/* codec information */
struct hda_codec {
	struct hdac_device core;
	struct hda_bus *bus;
	struct snd_card *card;
	unsigned int addr;	/* codec addr*/
	u32 probe_id; /* overridden id for probing */

/* detected preset */
	const struct hda_device_id *preset;
	const char *modelname;	/* model name for preset */

/* set by patch */
	struct hda_codec_ops patch_ops;

/* PCM to create, set by patch_ops.build_pcms callback */
	struct list_head pcm_list_head;
	refcount_t pcm_ref;
	wait_queue_head_t remove_sleep;

/* codec specific info */
	void *spec;

/* beep device */
	struct hda_beep *beep;
	unsigned int beep_mode;

/* widget capabilities cache */
	u32 *wcaps;

struct snd_array mixers;	/* list of assigned mixer elements */
	struct snd_array nids;		/* list of mapped mixer elements */

struct list_head conn_list;	/* linked-list of connection-list */

struct mutex spdif_mutex;
	struct mutex control_mutex;
	struct snd_array spdif_out;
	unsigned int spdif_in_enable;	/* SPDIF input enable? */
	const hda_nid_t *follower_dig_outs; /* optional digital out follower widgets */
	struct snd_array init_pins;	/* initial (BIOS) pin configurations */
	struct snd_array driver_pins;	/* pin configs set by codec parser */
	struct snd_array cvt_setups;	/* audio convert setups */

struct mutex user_mutex;
#ifdef CONFIG_SND_HDA_RECONFIG
	struct snd_array init_verbs;	/* additional init verbs */
	struct snd_array hints;		/* additional hints */
	struct snd_array user_pins;	/* default pin configs to override */
#endif

#ifdef CONFIG_SND_HDA_HWDEP
	struct snd_hwdep *hwdep;	/* assigned hwdep device */
#endif

/* misc flags */
	unsigned int configured:1; /* codec was configured */
	unsigned int in_freeing:1; /* being released */
	unsigned int registered:1; /* codec was registered */
	unsigned int display_power_control:1; /* needs display power */
	unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
					     * status change
					     * (e.g. Realtek codecs)
					     */
	unsigned int pin_amp_workaround:1; /* pin out-amp takes index
					    * (e.g. Conexant codecs)
					    */
	unsigned int single_adc_amp:1; /* adc in-amp takes no index
					* (e.g. CX20549 codec)
					*/
	unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
	unsigned int pins_shutup:1;	/* pins are shut up */
	unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
	unsigned int no_jack_detect:1;	/* Machine has no jack-detection */
	unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
	unsigned int inv_jack_detect:1;	/* broken h/w: inverted detection bit */
	unsigned int pcm_format_first:1; /* PCM format must be set first */
	unsigned int cached_write:1;	/* write only to caches */
	unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
	unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
	unsigned int power_save_node:1; /* advanced PM for each widget */
	unsigned int auto_runtime_pm:1; /* enable automatic codec runtime pm */
	unsigned int force_pin_prefix:1; /* Add location prefix */
	unsigned int link_down_at_suspend:1; /* link down at runtime suspend */
	unsigned int relaxed_resume:1;	/* don't resume forcibly for jack */
	unsigned int forced_resume:1; /* forced resume for jack */
	unsigned int mst_no_extra_pcms:1; /* no backup PCMs for DP-MST */

#ifdef CONFIG_PM
	unsigned long power_on_acct;
	unsigned long power_off_acct;
	unsigned long power_jiffies;
#endif

/* filter the requested power state per nid */
	unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
				     unsigned int power_state);

/* codec-specific additional proc output */
	void (*proc_widget_hook)(struct snd_info_buffer *buffer,
				 struct hda_codec *codec, hda_nid_t nid);

/* jack detection */
	struct snd_array jacktbl;
	unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
	struct delayed_work jackpoll_work;

int depop_delay; /* depop delay in ms, -1 for default delay time */

/* fix-up list */
	int fixup_id;
	const struct hda_fixup *fixup_list;
	const char *fixup_name;

/* additional init verbs */
	struct snd_array verbs;
};

#define dev_to_hda_codec(_dev)	container_of(_dev, struct hda_codec, core.dev)
#define hda_codec_dev(_dev)	(&(_dev)->core.dev)

#define hdac_to_hda_priv(_hdac) \
			container_of(_hdac, struct hdac_hda_priv, codec.core)
#define hdac_to_hda_codec(_hdac) container_of(_hdac, struct hda_codec, core)

#define list_for_each_codec(c, bus) \
	list_for_each_entry(c, &(bus)->core.codec_list, core.list)
#define list_for_each_codec_safe(c, n, bus)				\
	list_for_each_entry_safe(c, n, &(bus)->core.codec_list, core.list)

/* snd_hda_codec_read/write optional flags */
#define HDA_RW_NO_RESPONSE_FALLBACK	(1 << 0)

/*
 * constructors
 */
int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
		      unsigned int codec_addr, struct hda_codec **codecp);
int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
		      unsigned int codec_addr, struct hda_codec *codec);
int snd_hda_codec_configure(struct hda_codec *codec);
int snd_hda_codec_update_widgets(struct hda_codec *codec);

/*
 * low level functions
 */
static inline unsigned int
snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
				int flags,
				unsigned int verb, unsigned int parm)
{
	return snd_hdac_codec_read(&codec->core, nid, flags, verb, parm);
}

static inline int
snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
			unsigned int verb, unsigned int parm)
{
	return snd_hdac_codec_write(&codec->core, nid, flags, verb, parm);
}

#define snd_hda_param_read(codec, nid, param) \
	snd_hdac_read_parm(&(codec)->core, nid, param)
#define snd_hda_get_sub_nodes(codec, nid, start_nid) \
	snd_hdac_get_sub_nodes(&(codec)->core, nid, start_nid)
int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
			    hda_nid_t *conn_list, int max_conns);
static inline int
snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
{
	return snd_hda_get_connections(codec, nid, NULL, 0);
}

#define snd_hda_get_raw_connections(codec, nid, list, max_conns) \
	snd_hdac_get_connections(&(codec)->core, nid, list, max_conns)
#define snd_hda_get_num_raw_conns(codec, nid) \
	snd_hdac_get_connections(&(codec)->core, nid, NULL, 0)

int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
			  const hda_nid_t **listp);
int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
			  const hda_nid_t *list);
int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
			   hda_nid_t nid, int recursive);
unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
			u8 *dev_list, int max_devices);
int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id);

struct hda_verb {
	hda_nid_t nid;
	u32 verb;
	u32 param;
};

void snd_hda_sequence_write(struct hda_codec *codec,
			    const struct hda_verb *seq);

/* cached write */
static inline int
snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
			  int flags, unsigned int verb, unsigned int parm)
{
	return snd_hdac_regmap_write(&codec->core, nid, verb, parm);
}

/* 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_codec_build_controls(struct hda_codec *codec);

/*
 * PCM
 */
int snd_hda_codec_parse_pcms(struct hda_codec *codec);
int snd_hda_codec_build_pcms(struct hda_codec *codec);

__printf(2, 3)
struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
				      const char *fmt, ...);

void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);

static inline void snd_hda_codec_pcm_get(struct hda_pcm *pcm)
{
	refcount_inc(&pcm->codec->pcm_ref);
}
void snd_hda_codec_pcm_put(struct hda_pcm *pcm);

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)

#define snd_hda_query_supported_pcm(codec, nid, ratesp, fmtsp, bpsp) \
	snd_hdac_query_supported_pcm(&(codec)->core, nid, ratesp, fmtsp, bpsp)
#define snd_hda_is_supported_format(codec, nid, fmt) \
	snd_hdac_is_supported_format(&(codec)->core, nid, fmt)

extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];

int snd_hda_attach_pcm_stream(struct hda_bus *_bus, struct hda_codec *codec,
			      struct hda_pcm *cpcm);

/*
 * Misc
 */
void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
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);
void snd_hda_bus_reset(struct hda_bus *bus);
void snd_hda_bus_reset_codecs(struct hda_bus *bus);

int snd_hda_codec_set_name(struct hda_codec *codec, const char *name);

/*
 * power management
 */
extern const struct dev_pm_ops hda_codec_driver_pm;

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;
}

/*
 * power saving
 */
#define snd_hda_power_up(codec)		snd_hdac_power_up(&(codec)->core)
#define snd_hda_power_up_pm(codec)	snd_hdac_power_up_pm(&(codec)->core)
#define snd_hda_power_down(codec)	snd_hdac_power_down(&(codec)->core)
#define snd_hda_power_down_pm(codec)	snd_hdac_power_down_pm(&(codec)->core)
#ifdef CONFIG_PM
void snd_hda_set_power_save(struct hda_bus *bus, int delay);
void snd_hda_update_power_acct(struct hda_codec *codec);
#else
static inline void snd_hda_set_power_save(struct hda_bus *bus, int delay) {}
#endif

static inline bool hda_codec_need_resume(struct hda_codec *codec)
{
	return !codec->relaxed_resume && codec->jacktbl.used;
}

#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
int snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
				   unsigned int size,
				   struct snd_dma_buffer *bufp);
void snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start);
void snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
				    struct snd_dma_buffer *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 */

cmd: