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linux/include/sound/hda_codec.h
Jaroslav Kysela ef6f5494fa ALSA: hda/hdmi: Use only dynamic PCM device allocation 
Per discussion on the alsa-devel mailing list [1], the legacy PIN to PCM
device mapping is obsolete nowadays. The maximum number of the simultaneously
usable PCM devices is equal to the HDMI codec converters.

Remove the extra PCM devices (beyond the detected converters) and force
the use of the dynamic PCM device allocation. The legacy code is removed.

I believe that all HDMI codecs have the jack sensing feature. Move the check
to the codec probe function and print a warning, if a codec without this
feature is detected.

[1] https://lore.kernel.org/alsa-devel/2f37e0b2-1e82-8c0b-2bbd-1e5038d6ecc6@perex.cz/

Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20220922084017.25925-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-09-22 13:58:16 +02:00

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/* 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 */
unsigned int jackpoll_in_suspend:1; /* keep jack polling during
* runtime suspend
*/
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 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 */
#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_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
*/
__printf(3, 4) struct hda_codec *
snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
const char *fmt, ...);
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,
bool snddev_managed);
int snd_hda_codec_configure(struct hda_codec *codec);
int snd_hda_codec_update_widgets(struct hda_codec *codec);
void snd_hda_codec_register(struct hda_codec *codec);
void snd_hda_codec_unregister(struct hda_codec *codec);
void snd_hda_codec_cleanup_for_unbind(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_codec_set_power_save(struct hda_codec *codec, int delay);
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_codec_set_power_save(struct hda_codec *codec, int delay) {}
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 */
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