diff options
Diffstat (limited to 'sound/soc/soc-core.c')
| -rw-r--r-- | sound/soc/soc-core.c | 153 |
1 files changed, 131 insertions, 22 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index b098c0b4c58..6cbe7e82f23 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1300,6 +1300,8 @@ EXPORT_SYMBOL_GPL(snd_soc_test_bits); /** * snd_soc_new_pcms - create new sound card and pcms * @socdev: the SoC audio device + * @idx: ALSA card index + * @xid: card identification * * Create a new sound card based upon the codec and interface pcms. * @@ -1472,7 +1474,7 @@ EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); * snd_soc_cnew - create new control * @_template: control template * @data: control private data - * @lnng_name: control long name + * @long_name: control long name * * Create a new mixer control from a template control. * @@ -1522,7 +1524,7 @@ EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); /** * snd_soc_get_enum_double - enumerated double mixer get callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to get the value of a double enumerated mixer. * @@ -1551,7 +1553,7 @@ EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); /** * snd_soc_put_enum_double - enumerated double mixer put callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to set the value of a double enumerated mixer. * @@ -1583,6 +1585,113 @@ int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); /** + * snd_soc_info_value_enum_double - semi enumerated double mixer info callback + * @kcontrol: mixer control + * @uinfo: control element information + * + * Callback to provide information about a double semi enumerated + * mixer control. + * + * Semi enumerated mixer: the enumerated items are referred as values. Can be + * used for handling bitfield coded enumeration for example. + * + * Returns 0 for success. + */ +int snd_soc_info_value_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct soc_value_enum *e = (struct soc_value_enum *) + kcontrol->private_value; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = e->shift_l == e->shift_r ? 1 : 2; + uinfo->value.enumerated.items = e->max; + + if (uinfo->value.enumerated.item > e->max - 1) + uinfo->value.enumerated.item = e->max - 1; + strcpy(uinfo->value.enumerated.name, + e->texts[uinfo->value.enumerated.item]); + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_info_value_enum_double); + +/** + * snd_soc_get_value_enum_double - semi enumerated double mixer get callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to get the value of a double semi enumerated mixer. + * + * Semi enumerated mixer: the enumerated items are referred as values. Can be + * used for handling bitfield coded enumeration for example. + * + * Returns 0 for success. + */ +int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct soc_value_enum *e = (struct soc_value_enum *) + kcontrol->private_value; + unsigned short reg_val, val, mux; + + reg_val = snd_soc_read(codec, e->reg); + val = (reg_val >> e->shift_l) & e->mask; + for (mux = 0; mux < e->max; mux++) { + if (val == e->values[mux]) + break; + } + ucontrol->value.enumerated.item[0] = mux; + if (e->shift_l != e->shift_r) { + val = (reg_val >> e->shift_r) & e->mask; + for (mux = 0; mux < e->max; mux++) { + if (val == e->values[mux]) + break; + } + ucontrol->value.enumerated.item[1] = mux; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); + +/** + * snd_soc_put_value_enum_double - semi enumerated double mixer put callback + * @kcontrol: mixer control + * @ucontrol: control element information + * + * Callback to set the value of a double semi enumerated mixer. + * + * Semi enumerated mixer: the enumerated items are referred as values. Can be + * used for handling bitfield coded enumeration for example. + * + * Returns 0 for success. + */ +int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct soc_value_enum *e = (struct soc_value_enum *) + kcontrol->private_value; + unsigned short val; + unsigned short mask; + + if (ucontrol->value.enumerated.item[0] > e->max - 1) + return -EINVAL; + val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; + mask = e->mask << e->shift_l; + if (e->shift_l != e->shift_r) { + if (ucontrol->value.enumerated.item[1] > e->max - 1) + return -EINVAL; + val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; + mask |= e->mask << e->shift_r; + } + + return snd_soc_update_bits(codec, e->reg, mask, val); +} +EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); + +/** * snd_soc_info_enum_ext - external enumerated single mixer info callback * @kcontrol: mixer control * @uinfo: control element information @@ -1668,7 +1777,7 @@ EXPORT_SYMBOL_GPL(snd_soc_info_volsw); /** * snd_soc_get_volsw - single mixer get callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to get the value of a single mixer control. * @@ -1707,7 +1816,7 @@ EXPORT_SYMBOL_GPL(snd_soc_get_volsw); /** * snd_soc_put_volsw - single mixer put callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to set the value of a single mixer control. * @@ -1775,7 +1884,7 @@ EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); /** * snd_soc_get_volsw_2r - double mixer get callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to get the value of a double mixer control that spans 2 registers. * @@ -1812,7 +1921,7 @@ EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); /** * snd_soc_put_volsw_2r - double mixer set callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to set the value of a double mixer control that spans 2 registers. * @@ -1882,7 +1991,7 @@ EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); /** * snd_soc_get_volsw_s8 - signed mixer get callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to get the value of a signed mixer control. * @@ -1909,7 +2018,7 @@ EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); /** * snd_soc_put_volsw_sgn - signed mixer put callback * @kcontrol: mixer control - * @uinfo: control element information + * @ucontrol: control element information * * Callback to set the value of a signed mixer control. * @@ -1954,7 +2063,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); /** * snd_soc_dai_set_clkdiv - configure DAI clock dividers. * @dai: DAI - * @clk_id: DAI specific clock divider ID + * @div_id: DAI specific clock divider ID * @div: new clock divisor. * * Configures the clock dividers. This is used to derive the best DAI bit and @@ -2060,7 +2169,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); /** * snd_soc_register_card - Register a card with the ASoC core * - * @param card Card to register + * @card: Card to register * * Note that currently this is an internal only function: it will be * exposed to machine drivers after further backporting of ASoC v2 @@ -2087,7 +2196,7 @@ static int snd_soc_register_card(struct snd_soc_card *card) /** * snd_soc_unregister_card - Unregister a card with the ASoC core * - * @param card Card to unregister + * @card: Card to unregister * * Note that currently this is an internal only function: it will be * exposed to machine drivers after further backporting of ASoC v2 @@ -2107,7 +2216,7 @@ static int snd_soc_unregister_card(struct snd_soc_card *card) /** * snd_soc_register_dai - Register a DAI with the ASoC core * - * @param dai DAI to register + * @dai: DAI to register */ int snd_soc_register_dai(struct snd_soc_dai *dai) { @@ -2134,7 +2243,7 @@ EXPORT_SYMBOL_GPL(snd_soc_register_dai); /** * snd_soc_unregister_dai - Unregister a DAI from the ASoC core * - * @param dai DAI to unregister + * @dai: DAI to unregister */ void snd_soc_unregister_dai(struct snd_soc_dai *dai) { @@ -2149,8 +2258,8 @@ EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); /** * snd_soc_register_dais - Register multiple DAIs with the ASoC core * - * @param dai Array of DAIs to register - * @param count Number of DAIs + * @dai: Array of DAIs to register + * @count: Number of DAIs */ int snd_soc_register_dais(struct snd_soc_dai *dai, size_t count) { @@ -2175,8 +2284,8 @@ EXPORT_SYMBOL_GPL(snd_soc_register_dais); /** * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core * - * @param dai Array of DAIs to unregister - * @param count Number of DAIs + * @dai: Array of DAIs to unregister + * @count: Number of DAIs */ void snd_soc_unregister_dais(struct snd_soc_dai *dai, size_t count) { @@ -2190,7 +2299,7 @@ EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); /** * snd_soc_register_platform - Register a platform with the ASoC core * - * @param platform platform to register + * @platform: platform to register */ int snd_soc_register_platform(struct snd_soc_platform *platform) { @@ -2213,7 +2322,7 @@ EXPORT_SYMBOL_GPL(snd_soc_register_platform); /** * snd_soc_unregister_platform - Unregister a platform from the ASoC core * - * @param platform platform to unregister + * @platform: platform to unregister */ void snd_soc_unregister_platform(struct snd_soc_platform *platform) { @@ -2228,7 +2337,7 @@ EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); /** * snd_soc_register_codec - Register a codec with the ASoC core * - * @param codec codec to register + * @codec: codec to register */ int snd_soc_register_codec(struct snd_soc_codec *codec) { @@ -2255,7 +2364,7 @@ EXPORT_SYMBOL_GPL(snd_soc_register_codec); /** * snd_soc_unregister_codec - Unregister a codec from the ASoC core * - * @param codec codec to unregister + * @codec: codec to unregister */ void snd_soc_unregister_codec(struct snd_soc_codec *codec) { |