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ALSA: hda - Update / add kerneldoc comments to exported functions
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
85dd662ff4
commit
d5191e50b2
1 changed files with 391 additions and 41 deletions
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@ -94,6 +94,13 @@ static void hda_keep_power_on(struct hda_codec *codec);
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static inline void hda_keep_power_on(struct hda_codec *codec) {}
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#endif
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/**
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* snd_hda_get_jack_location - Give a location string of the jack
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* @cfg: pin default config value
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*
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* Parse the pin default config value and returns the string of the
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* jack location, e.g. "Rear", "Front", etc.
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*/
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const char *snd_hda_get_jack_location(u32 cfg)
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{
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static char *bases[7] = {
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@ -121,6 +128,13 @@ const char *snd_hda_get_jack_location(u32 cfg)
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}
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EXPORT_SYMBOL_HDA(snd_hda_get_jack_location);
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/**
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* snd_hda_get_jack_connectivity - Give a connectivity string of the jack
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* @cfg: pin default config value
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*
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* Parse the pin default config value and returns the string of the
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* jack connectivity, i.e. external or internal connection.
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*/
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const char *snd_hda_get_jack_connectivity(u32 cfg)
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{
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static char *jack_locations[4] = { "Ext", "Int", "Sep", "Oth" };
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@ -129,6 +143,13 @@ const char *snd_hda_get_jack_connectivity(u32 cfg)
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}
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EXPORT_SYMBOL_HDA(snd_hda_get_jack_connectivity);
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/**
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* snd_hda_get_jack_type - Give a type string of the jack
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* @cfg: pin default config value
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*
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* Parse the pin default config value and returns the string of the
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* jack type, i.e. the purpose of the jack, such as Line-Out or CD.
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*/
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const char *snd_hda_get_jack_type(u32 cfg)
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{
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static char *jack_types[16] = {
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@ -822,6 +843,16 @@ int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
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return 0;
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}
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/**
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* snd_hda_codec_set_pincfg - Override a pin default configuration
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* @codec: the HDA codec
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* @nid: NID to set the pin config
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* @cfg: the pin default config value
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*
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* Override a pin default configuration value in the cache.
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* This value can be read by snd_hda_codec_get_pincfg() in a higher
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* priority than the real hardware value.
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*/
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int snd_hda_codec_set_pincfg(struct hda_codec *codec,
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hda_nid_t nid, unsigned int cfg)
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{
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@ -829,7 +860,15 @@ int snd_hda_codec_set_pincfg(struct hda_codec *codec,
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}
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EXPORT_SYMBOL_HDA(snd_hda_codec_set_pincfg);
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/* get the current pin config value of the given pin NID */
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/**
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* snd_hda_codec_get_pincfg - Obtain a pin-default configuration
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* @codec: the HDA codec
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* @nid: NID to get the pin config
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*
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* Get the current pin config value of the given pin NID.
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* If the pincfg value is cached or overridden via sysfs or driver,
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* returns the cached value.
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*/
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unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid)
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{
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struct hda_pincfg *pin;
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@ -1028,6 +1067,15 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr
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}
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EXPORT_SYMBOL_HDA(snd_hda_codec_new);
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/**
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* snd_hda_codec_configure - (Re-)configure the HD-audio codec
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* @codec: the HDA codec
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*
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* Start parsing of the given codec tree and (re-)initialize the whole
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* patch instance.
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*
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* Returns 0 if successful or a negative error code.
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*/
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int snd_hda_codec_configure(struct hda_codec *codec)
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{
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int err;
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@ -1090,6 +1138,11 @@ void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
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}
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EXPORT_SYMBOL_HDA(snd_hda_codec_setup_stream);
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/**
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* snd_hda_codec_cleanup_stream - clean up the codec for closing
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* @codec: the CODEC to clean up
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* @nid: the NID to clean up
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*/
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void snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid)
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{
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if (!nid)
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@ -1165,8 +1218,17 @@ get_alloc_amp_hash(struct hda_codec *codec, u32 key)
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return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key);
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}
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/*
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* query AMP capabilities for the given widget and direction
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/**
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* query_amp_caps - query AMP capabilities
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* @codec: the HD-auio codec
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* @nid: the NID to query
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* @direction: either #HDA_INPUT or #HDA_OUTPUT
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*
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* Query AMP capabilities for the given widget and direction.
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* Returns the obtained capability bits.
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*
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* When cap bits have been already read, this doesn't read again but
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* returns the cached value.
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*/
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u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
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{
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@ -1189,6 +1251,19 @@ u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
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}
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EXPORT_SYMBOL_HDA(query_amp_caps);
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/**
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* snd_hda_override_amp_caps - Override the AMP capabilities
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* @codec: the CODEC to clean up
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* @nid: the NID to clean up
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* @direction: either #HDA_INPUT or #HDA_OUTPUT
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* @caps: the capability bits to set
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*
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* Override the cached AMP caps bits value by the given one.
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* This function is useful if the driver needs to adjust the AMP ranges,
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* e.g. limit to 0dB, etc.
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*
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* Returns zero if successful or a negative error code.
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*/
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int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
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unsigned int caps)
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{
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@ -1224,6 +1299,17 @@ static unsigned int read_pin_cap(struct hda_codec *codec, hda_nid_t nid)
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return snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
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}
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/**
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* snd_hda_query_pin_caps - Query PIN capabilities
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* @codec: the HD-auio codec
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* @nid: the NID to query
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*
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* Query PIN capabilities for the given widget.
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* Returns the obtained capability bits.
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*
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* When cap bits have been already read, this doesn't read again but
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* returns the cached value.
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*/
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u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid)
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{
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return query_caps_hash(codec, nid, HDA_HASH_PINCAP_KEY(nid),
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@ -1271,8 +1357,15 @@ static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
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info->vol[ch] = val;
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}
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/*
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* read AMP value. The volume is between 0 to 0x7f, 0x80 = mute bit.
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/**
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* snd_hda_codec_amp_read - Read AMP value
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* @codec: HD-audio codec
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* @nid: NID to read the AMP value
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* @ch: channel (left=0 or right=1)
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* @direction: #HDA_INPUT or #HDA_OUTPUT
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* @index: the index value (only for input direction)
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*
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* Read AMP value. The volume is between 0 to 0x7f, 0x80 = mute bit.
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*/
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int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
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int direction, int index)
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@ -1285,8 +1378,18 @@ int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
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}
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EXPORT_SYMBOL_HDA(snd_hda_codec_amp_read);
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/*
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* update the AMP value, mask = bit mask to set, val = the value
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/**
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* snd_hda_codec_amp_update - update the AMP value
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* @codec: HD-audio codec
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* @nid: NID to read the AMP value
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* @ch: channel (left=0 or right=1)
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* @direction: #HDA_INPUT or #HDA_OUTPUT
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* @idx: the index value (only for input direction)
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* @mask: bit mask to set
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* @val: the bits value to set
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*
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* Update the AMP value with a bit mask.
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* Returns 0 if the value is unchanged, 1 if changed.
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*/
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int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
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int direction, int idx, int mask, int val)
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@ -1305,8 +1408,17 @@ int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
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}
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EXPORT_SYMBOL_HDA(snd_hda_codec_amp_update);
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/*
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* update the AMP stereo with the same mask and value
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/**
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* snd_hda_codec_amp_stereo - update the AMP stereo values
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* @codec: HD-audio codec
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* @nid: NID to read the AMP value
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* @direction: #HDA_INPUT or #HDA_OUTPUT
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* @idx: the index value (only for input direction)
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* @mask: bit mask to set
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* @val: the bits value to set
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*
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* Update the AMP values like snd_hda_codec_amp_update(), but for a
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* stereo widget with the same mask and value.
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*/
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int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
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int direction, int idx, int mask, int val)
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@ -1320,7 +1432,12 @@ int snd_hda_codec_amp_stereo(struct hda_codec *codec, hda_nid_t nid,
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EXPORT_SYMBOL_HDA(snd_hda_codec_amp_stereo);
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#ifdef SND_HDA_NEEDS_RESUME
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/* resume the all amp commands from the cache */
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/**
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* snd_hda_codec_resume_amp - Resume all AMP commands from the cache
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* @codec: HD-audio codec
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*
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* Resume the all amp commands from the cache.
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*/
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void snd_hda_codec_resume_amp(struct hda_codec *codec)
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{
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struct hda_amp_info *buffer = codec->amp_cache.buf.list;
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@ -1346,7 +1463,12 @@ void snd_hda_codec_resume_amp(struct hda_codec *codec)
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EXPORT_SYMBOL_HDA(snd_hda_codec_resume_amp);
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#endif /* SND_HDA_NEEDS_RESUME */
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/* volume */
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/**
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* snd_hda_mixer_amp_volume_info - Info callback for a standard AMP mixer
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*
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* The control element is supposed to have the private_value field
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* set up via HDA_COMPOSE_AMP_VAL*() or related macros.
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*/
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int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo)
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{
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@ -1402,6 +1524,12 @@ update_amp_value(struct hda_codec *codec, hda_nid_t nid,
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HDA_AMP_VOLMASK, val);
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}
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/**
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* snd_hda_mixer_amp_volume_get - Get callback for a standard AMP mixer volume
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*
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* The control element is supposed to have the private_value field
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* set up via HDA_COMPOSE_AMP_VAL*() or related macros.
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*/
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int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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@ -1421,6 +1549,12 @@ int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
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}
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EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_get);
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/**
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* snd_hda_mixer_amp_volume_put - Put callback for a standard AMP mixer volume
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*
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* The control element is supposed to have the private_value field
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* set up via HDA_COMPOSE_AMP_VAL*() or related macros.
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*/
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int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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@ -1445,6 +1579,12 @@ int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
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}
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EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_volume_put);
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/**
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* snd_hda_mixer_amp_volume_put - TLV callback for a standard AMP mixer volume
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*
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* The control element is supposed to have the private_value field
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* set up via HDA_COMPOSE_AMP_VAL*() or related macros.
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*/
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int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
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unsigned int size, unsigned int __user *_tlv)
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{
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@ -1474,8 +1614,16 @@ int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
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}
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EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_tlv);
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/*
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* set (static) TLV for virtual master volume; recalculated as max 0dB
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/**
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* snd_hda_set_vmaster_tlv - Set TLV for a virtual master control
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* @codec: HD-audio codec
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* @nid: NID of a reference widget
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* @dir: #HDA_INPUT or #HDA_OUTPUT
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* @tlv: TLV data to be stored, at least 4 elements
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*
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* Set (static) TLV data for a virtual master volume using the AMP caps
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* obtained from the reference NID.
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* The volume range is recalculated as if the max volume is 0dB.
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*/
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void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
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unsigned int *tlv)
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@ -1509,6 +1657,13 @@ _snd_hda_find_mixer_ctl(struct hda_codec *codec,
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return snd_ctl_find_id(codec->bus->card, &id);
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}
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/**
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* snd_hda_find_mixer_ctl - Find a mixer control element with the given name
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* @codec: HD-audio codec
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* @name: ctl id name string
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*
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* Get the control element with the given id string and IFACE_MIXER.
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*/
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struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
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const char *name)
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{
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@ -1516,7 +1671,24 @@ struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
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}
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EXPORT_SYMBOL_HDA(snd_hda_find_mixer_ctl);
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/* Add a control element and assign to the codec */
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/**
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* snd_hda_ctl-add - Add a control element and assign to the codec
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* @codec: HD-audio codec
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* @nid: corresponding NID (optional)
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* @kctl: the control element to assign
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*
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* Add the given control element to an array inside the codec instance.
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* All control elements belonging to a codec are supposed to be added
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* by this function so that a proper clean-up works at the free or
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* reconfiguration time.
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*
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* If non-zero @nid is passed, the NID is assigned to the control element.
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* The assignment is shown in the codec proc file.
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*
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* snd_hda_ctl_add() checks the control subdev id field whether
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* #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower
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* bits value is taken as the NID to assign.
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*/
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int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
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struct snd_kcontrol *kctl)
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{
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@ -1540,7 +1712,10 @@ int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid,
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}
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EXPORT_SYMBOL_HDA(snd_hda_ctl_add);
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/* Clear all controls assigned to the given codec */
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/**
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* snd_hda_ctls_clear - Clear all controls assigned to the given codec
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* @codec: HD-audio codec
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*/
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void snd_hda_ctls_clear(struct hda_codec *codec)
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{
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int i;
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@ -1572,6 +1747,16 @@ static void hda_unlock_devices(struct snd_card *card)
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spin_unlock(&card->files_lock);
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}
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/**
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* snd_hda_codec_reset - Clear all objects assigned to the codec
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* @codec: HD-audio codec
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*
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* This frees the all PCM and control elements assigned to the codec, and
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* clears the caches and restores the pin default configurations.
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*
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* When a device is being used, it returns -EBSY. If successfully freed,
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* returns zero.
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*/
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int snd_hda_codec_reset(struct hda_codec *codec)
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{
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struct snd_card *card = codec->bus->card;
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@ -1635,7 +1820,22 @@ int snd_hda_codec_reset(struct hda_codec *codec)
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return 0;
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}
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/* create a virtual master control and add slaves */
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/**
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* snd_hda_add_vmaster - create a virtual master control and add slaves
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* @codec: HD-audio codec
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* @name: vmaster control name
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* @tlv: TLV data (optional)
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* @slaves: slave control names (optional)
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*
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* Create a virtual master control with the given name. The TLV data
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* must be either NULL or a valid data.
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*
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* @slaves is a NULL-terminated array of strings, each of which is a
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* slave control name. All controls with these names are assigned to
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* the new virtual master control.
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*
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* This function returns zero if successful or a negative error code.
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*/
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int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
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unsigned int *tlv, const char **slaves)
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{
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|
|
@ -1677,7 +1877,12 @@ int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_add_vmaster);
|
||||
|
||||
/* switch */
|
||||
/**
|
||||
* snd_hda_mixer_amp_switch_info - Info callback for a standard AMP mixer switch
|
||||
*
|
||||
* The control element is supposed to have the private_value field
|
||||
* set up via HDA_COMPOSE_AMP_VAL*() or related macros.
|
||||
*/
|
||||
int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_info *uinfo)
|
||||
{
|
||||
|
|
@ -1691,6 +1896,12 @@ int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_info);
|
||||
|
||||
/**
|
||||
* snd_hda_mixer_amp_switch_get - Get callback for a standard AMP mixer switch
|
||||
*
|
||||
* The control element is supposed to have the private_value field
|
||||
* set up via HDA_COMPOSE_AMP_VAL*() or related macros.
|
||||
*/
|
||||
int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
|
|
@ -1711,6 +1922,12 @@ int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_get);
|
||||
|
||||
/**
|
||||
* snd_hda_mixer_amp_switch_put - Put callback for a standard AMP mixer switch
|
||||
*
|
||||
* The control element is supposed to have the private_value field
|
||||
* set up via HDA_COMPOSE_AMP_VAL*() or related macros.
|
||||
*/
|
||||
int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
|
|
@ -1742,6 +1959,12 @@ int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_put);
|
||||
|
||||
/**
|
||||
* snd_hda_mixer_amp_switch_put_beep - Put callback for a beep AMP switch
|
||||
*
|
||||
* This function calls snd_hda_enable_beep_device(), which behaves differently
|
||||
* depending on beep_mode option.
|
||||
*/
|
||||
int snd_hda_mixer_amp_switch_put_beep(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
|
|
@ -1762,6 +1985,12 @@ EXPORT_SYMBOL_HDA(snd_hda_mixer_amp_switch_put_beep);
|
|||
#define AMP_VAL_IDX_SHIFT 19
|
||||
#define AMP_VAL_IDX_MASK (0x0f<<19)
|
||||
|
||||
/**
|
||||
* snd_hda_mixer_bind_switch_get - Get callback for a bound volume control
|
||||
*
|
||||
* The control element is supposed to have the private_value field
|
||||
* set up via HDA_BIND_MUTE*() macros.
|
||||
*/
|
||||
int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
|
|
@ -1779,6 +2008,12 @@ int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_get);
|
||||
|
||||
/**
|
||||
* snd_hda_mixer_bind_switch_put - Put callback for a bound volume control
|
||||
*
|
||||
* The control element is supposed to have the private_value field
|
||||
* set up via HDA_BIND_MUTE*() macros.
|
||||
*/
|
||||
int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
|
|
@ -1803,8 +2038,11 @@ int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_switch_put);
|
||||
|
||||
/*
|
||||
* generic bound volume/swtich controls
|
||||
/**
|
||||
* snd_hda_mixer_bind_ctls_info - Info callback for a generic bound control
|
||||
*
|
||||
* The control element is supposed to have the private_value field
|
||||
* set up via HDA_BIND_VOL() or HDA_BIND_SW() macros.
|
||||
*/
|
||||
int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_info *uinfo)
|
||||
|
|
@ -1823,6 +2061,12 @@ int snd_hda_mixer_bind_ctls_info(struct snd_kcontrol *kcontrol,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_info);
|
||||
|
||||
/**
|
||||
* snd_hda_mixer_bind_ctls_get - Get callback for a generic bound control
|
||||
*
|
||||
* The control element is supposed to have the private_value field
|
||||
* set up via HDA_BIND_VOL() or HDA_BIND_SW() macros.
|
||||
*/
|
||||
int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
|
|
@ -1840,6 +2084,12 @@ int snd_hda_mixer_bind_ctls_get(struct snd_kcontrol *kcontrol,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_get);
|
||||
|
||||
/**
|
||||
* snd_hda_mixer_bind_ctls_put - Put callback for a generic bound control
|
||||
*
|
||||
* The control element is supposed to have the private_value field
|
||||
* set up via HDA_BIND_VOL() or HDA_BIND_SW() macros.
|
||||
*/
|
||||
int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
|
|
@ -1863,6 +2113,12 @@ int snd_hda_mixer_bind_ctls_put(struct snd_kcontrol *kcontrol,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_mixer_bind_ctls_put);
|
||||
|
||||
/**
|
||||
* snd_hda_mixer_bind_tlv - TLV callback for a generic bound control
|
||||
*
|
||||
* The control element is supposed to have the private_value field
|
||||
* set up via HDA_BIND_VOL() macro.
|
||||
*/
|
||||
int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
|
||||
unsigned int size, unsigned int __user *tlv)
|
||||
{
|
||||
|
|
@ -2185,6 +2441,11 @@ static struct snd_kcontrol_new spdif_share_sw = {
|
|||
.put = spdif_share_sw_put,
|
||||
};
|
||||
|
||||
/**
|
||||
* snd_hda_create_spdif_share_sw - create Default PCM switch
|
||||
* @codec: the HDA codec
|
||||
* @mout: multi-out instance
|
||||
*/
|
||||
int snd_hda_create_spdif_share_sw(struct hda_codec *codec,
|
||||
struct hda_multi_out *mout)
|
||||
{
|
||||
|
|
@ -2352,7 +2613,12 @@ int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_codec_write_cache);
|
||||
|
||||
/* resume the all commands from the cache */
|
||||
/**
|
||||
* snd_hda_codec_resume_cache - Resume the all commands from the cache
|
||||
* @codec: HD-audio codec
|
||||
*
|
||||
* Execute all verbs recorded in the command caches to resume.
|
||||
*/
|
||||
void snd_hda_codec_resume_cache(struct hda_codec *codec)
|
||||
{
|
||||
struct hda_cache_head *buffer = codec->cmd_cache.buf.list;
|
||||
|
|
@ -2778,8 +3044,12 @@ static int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
|
|||
}
|
||||
|
||||
/**
|
||||
* snd_hda_is_supported_format - check whether the given node supports
|
||||
* the format val
|
||||
* snd_hda_is_supported_format - Check the validity of the format
|
||||
* @codec: HD-audio codec
|
||||
* @nid: NID to check
|
||||
* @format: the HD-audio format value to check
|
||||
*
|
||||
* Check whether the given node supports the format value.
|
||||
*
|
||||
* Returns 1 if supported, 0 if not.
|
||||
*/
|
||||
|
|
@ -2899,6 +3169,7 @@ static int set_pcm_default_values(struct hda_codec *codec,
|
|||
return 0;
|
||||
}
|
||||
|
||||
/* global */
|
||||
const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
|
||||
"Audio", "SPDIF", "HDMI", "Modem"
|
||||
};
|
||||
|
|
@ -3216,6 +3487,7 @@ static void hda_keep_power_on(struct hda_codec *codec)
|
|||
codec->power_jiffies = jiffies;
|
||||
}
|
||||
|
||||
/* update the power on/off account with the current jiffies */
|
||||
void snd_hda_update_power_acct(struct hda_codec *codec)
|
||||
{
|
||||
unsigned long delta = jiffies - codec->power_jiffies;
|
||||
|
|
@ -3226,6 +3498,13 @@ void snd_hda_update_power_acct(struct hda_codec *codec)
|
|||
codec->power_jiffies += delta;
|
||||
}
|
||||
|
||||
/**
|
||||
* 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.
|
||||
*/
|
||||
void snd_hda_power_up(struct hda_codec *codec)
|
||||
{
|
||||
struct hda_bus *bus = codec->bus;
|
||||
|
|
@ -3248,9 +3527,13 @@ EXPORT_SYMBOL_HDA(snd_hda_power_up);
|
|||
#define power_save(codec) \
|
||||
((codec)->bus->power_save ? *(codec)->bus->power_save : 0)
|
||||
|
||||
#define power_save(codec) \
|
||||
((codec)->bus->power_save ? *(codec)->bus->power_save : 0)
|
||||
|
||||
/**
|
||||
* 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.
|
||||
*/
|
||||
void snd_hda_power_down(struct hda_codec *codec)
|
||||
{
|
||||
--codec->power_count;
|
||||
|
|
@ -3264,6 +3547,19 @@ void snd_hda_power_down(struct hda_codec *codec)
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_power_down);
|
||||
|
||||
/**
|
||||
* snd_hda_check_amp_list_power - Check the amp list and update the power
|
||||
* @codec: HD-audio codec
|
||||
* @check: the object containing an AMP list and the status
|
||||
* @nid: NID to check / update
|
||||
*
|
||||
* Check whether the given NID is in the amp list. If it's in the list,
|
||||
* check the current AMP status, and update the the power-status according
|
||||
* to the mute status.
|
||||
*
|
||||
* This function is supposed to be set or called from the check_power_status
|
||||
* patch ops.
|
||||
*/
|
||||
int snd_hda_check_amp_list_power(struct hda_codec *codec,
|
||||
struct hda_loopback_check *check,
|
||||
hda_nid_t nid)
|
||||
|
|
@ -3305,6 +3601,10 @@ EXPORT_SYMBOL_HDA(snd_hda_check_amp_list_power);
|
|||
/*
|
||||
* Channel mode helper
|
||||
*/
|
||||
|
||||
/**
|
||||
* snd_hda_ch_mode_info - Info callback helper for the channel mode enum
|
||||
*/
|
||||
int snd_hda_ch_mode_info(struct hda_codec *codec,
|
||||
struct snd_ctl_elem_info *uinfo,
|
||||
const struct hda_channel_mode *chmode,
|
||||
|
|
@ -3321,6 +3621,9 @@ int snd_hda_ch_mode_info(struct hda_codec *codec,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_ch_mode_info);
|
||||
|
||||
/**
|
||||
* snd_hda_ch_mode_get - Get callback helper for the channel mode enum
|
||||
*/
|
||||
int snd_hda_ch_mode_get(struct hda_codec *codec,
|
||||
struct snd_ctl_elem_value *ucontrol,
|
||||
const struct hda_channel_mode *chmode,
|
||||
|
|
@ -3339,6 +3642,9 @@ int snd_hda_ch_mode_get(struct hda_codec *codec,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_ch_mode_get);
|
||||
|
||||
/**
|
||||
* snd_hda_ch_mode_put - Put callback helper for the channel mode enum
|
||||
*/
|
||||
int snd_hda_ch_mode_put(struct hda_codec *codec,
|
||||
struct snd_ctl_elem_value *ucontrol,
|
||||
const struct hda_channel_mode *chmode,
|
||||
|
|
@ -3363,6 +3669,10 @@ EXPORT_SYMBOL_HDA(snd_hda_ch_mode_put);
|
|||
/*
|
||||
* input MUX helper
|
||||
*/
|
||||
|
||||
/**
|
||||
* snd_hda_input_mux_info_info - Info callback helper for the input-mux enum
|
||||
*/
|
||||
int snd_hda_input_mux_info(const struct hda_input_mux *imux,
|
||||
struct snd_ctl_elem_info *uinfo)
|
||||
{
|
||||
|
|
@ -3381,6 +3691,9 @@ int snd_hda_input_mux_info(const struct hda_input_mux *imux,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_input_mux_info);
|
||||
|
||||
/**
|
||||
* snd_hda_input_mux_info_put - Put callback helper for the input-mux enum
|
||||
*/
|
||||
int snd_hda_input_mux_put(struct hda_codec *codec,
|
||||
const struct hda_input_mux *imux,
|
||||
struct snd_ctl_elem_value *ucontrol,
|
||||
|
|
@ -3440,7 +3753,10 @@ static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
|
|||
}
|
||||
}
|
||||
|
||||
/* call each reboot notifier */
|
||||
/**
|
||||
* snd_hda_bus_reboot_notify - call the reboot notifier of each codec
|
||||
* @bus: HD-audio bus
|
||||
*/
|
||||
void snd_hda_bus_reboot_notify(struct hda_bus *bus)
|
||||
{
|
||||
struct hda_codec *codec;
|
||||
|
|
@ -3458,8 +3774,8 @@ void snd_hda_bus_reboot_notify(struct hda_bus *bus)
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_bus_reboot_notify);
|
||||
|
||||
/*
|
||||
* open the digital out in the exclusive mode
|
||||
/**
|
||||
* snd_hda_multi_out_dig_open - open the digital out in the exclusive mode
|
||||
*/
|
||||
int snd_hda_multi_out_dig_open(struct hda_codec *codec,
|
||||
struct hda_multi_out *mout)
|
||||
|
|
@ -3474,6 +3790,9 @@ int snd_hda_multi_out_dig_open(struct hda_codec *codec,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_open);
|
||||
|
||||
/**
|
||||
* snd_hda_multi_out_dig_prepare - prepare the digital out stream
|
||||
*/
|
||||
int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
|
||||
struct hda_multi_out *mout,
|
||||
unsigned int stream_tag,
|
||||
|
|
@ -3487,6 +3806,9 @@ int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_prepare);
|
||||
|
||||
/**
|
||||
* snd_hda_multi_out_dig_cleanup - clean-up the digital out stream
|
||||
*/
|
||||
int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
|
||||
struct hda_multi_out *mout)
|
||||
{
|
||||
|
|
@ -3497,8 +3819,8 @@ int snd_hda_multi_out_dig_cleanup(struct hda_codec *codec,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_cleanup);
|
||||
|
||||
/*
|
||||
* release the digital out
|
||||
/**
|
||||
* snd_hda_multi_out_dig_close - release the digital out stream
|
||||
*/
|
||||
int snd_hda_multi_out_dig_close(struct hda_codec *codec,
|
||||
struct hda_multi_out *mout)
|
||||
|
|
@ -3510,8 +3832,12 @@ int snd_hda_multi_out_dig_close(struct hda_codec *codec,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_multi_out_dig_close);
|
||||
|
||||
/*
|
||||
* set up more restrictions for analog out
|
||||
/**
|
||||
* snd_hda_multi_out_analog_open - open analog outputs
|
||||
*
|
||||
* Open analog outputs and set up the hw-constraints.
|
||||
* If the digital outputs can be opened as slave, open the digital
|
||||
* outputs, too.
|
||||
*/
|
||||
int snd_hda_multi_out_analog_open(struct hda_codec *codec,
|
||||
struct hda_multi_out *mout,
|
||||
|
|
@ -3556,9 +3882,11 @@ int snd_hda_multi_out_analog_open(struct hda_codec *codec,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_open);
|
||||
|
||||
/*
|
||||
* set up the i/o for analog out
|
||||
* when the digital out is available, copy the front out to digital out, too.
|
||||
/**
|
||||
* snd_hda_multi_out_analog_prepare - Preapre the analog outputs.
|
||||
*
|
||||
* Set up the i/o for analog out.
|
||||
* When the digital out is available, copy the front out to digital out, too.
|
||||
*/
|
||||
int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
|
||||
struct hda_multi_out *mout,
|
||||
|
|
@ -3615,8 +3943,8 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_prepare);
|
||||
|
||||
/*
|
||||
* clean up the setting for analog out
|
||||
/**
|
||||
* snd_hda_multi_out_analog_cleanup - clean up the setting for analog out
|
||||
*/
|
||||
int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
|
||||
struct hda_multi_out *mout)
|
||||
|
|
@ -4002,8 +4330,14 @@ EXPORT_SYMBOL_HDA(snd_hda_resume);
|
|||
* generic arrays
|
||||
*/
|
||||
|
||||
/* get a new element from the given array
|
||||
* if it exceeds the pre-allocated array size, re-allocate the array
|
||||
/**
|
||||
* snd_array_new - get a new element from the given array
|
||||
* @array: the array object
|
||||
*
|
||||
* Get a new element from the given array. If it exceeds the
|
||||
* pre-allocated array size, re-allocate the array.
|
||||
*
|
||||
* Returns NULL if allocation failed.
|
||||
*/
|
||||
void *snd_array_new(struct snd_array *array)
|
||||
{
|
||||
|
|
@ -4027,7 +4361,10 @@ void *snd_array_new(struct snd_array *array)
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_array_new);
|
||||
|
||||
/* free the given array elements */
|
||||
/**
|
||||
* snd_array_free - free the given array elements
|
||||
* @array: the array object
|
||||
*/
|
||||
void snd_array_free(struct snd_array *array)
|
||||
{
|
||||
kfree(array->list);
|
||||
|
|
@ -4037,7 +4374,12 @@ void snd_array_free(struct snd_array *array)
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_array_free);
|
||||
|
||||
/*
|
||||
/**
|
||||
* snd_print_pcm_rates - Print the supported PCM rates to the string buffer
|
||||
* @pcm: PCM caps bits
|
||||
* @buf: the string buffer to write
|
||||
* @buflen: the max buffer length
|
||||
*
|
||||
* used by hda_proc.c and hda_eld.c
|
||||
*/
|
||||
void snd_print_pcm_rates(int pcm, char *buf, int buflen)
|
||||
|
|
@ -4056,6 +4398,14 @@ void snd_print_pcm_rates(int pcm, char *buf, int buflen)
|
|||
}
|
||||
EXPORT_SYMBOL_HDA(snd_print_pcm_rates);
|
||||
|
||||
/**
|
||||
* snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer
|
||||
* @pcm: PCM caps bits
|
||||
* @buf: the string buffer to write
|
||||
* @buflen: the max buffer length
|
||||
*
|
||||
* used by hda_proc.c and hda_eld.c
|
||||
*/
|
||||
void snd_print_pcm_bits(int pcm, char *buf, int buflen)
|
||||
{
|
||||
static unsigned int bits[] = { 8, 16, 20, 24, 32 };
|
||||
|
|
|
|||
Loading…
Reference in a new issue