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author | Takashi Iwai <tiwai@suse.de> | 2009-03-24 00:35:53 +0100 |
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committer | Takashi Iwai <tiwai@suse.de> | 2009-03-24 00:35:53 +0100 |
commit | b5c784894c90042f4fc6348aedc7524e899df281 (patch) | |
tree | 0db86a93d73e4aabca04e361d7e6807aa4c1d307 /sound/soc/soc-dapm.c | |
parent | ff4fc3656e489ed6ee575959b0510286aefe1e20 (diff) | |
parent | 1f2186951e02f2a5bcda9459f63136918932385a (diff) | |
download | linux-b5c784894c90042f4fc6348aedc7524e899df281.tar.bz2 |
Merge branch 'topic/asoc' into for-linus
Diffstat (limited to 'sound/soc/soc-dapm.c')
-rw-r--r-- | sound/soc/soc-dapm.c | 390 |
1 files changed, 250 insertions, 140 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index a2f1da8b4646..735903a74675 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -54,14 +54,15 @@ static int dapm_up_seq[] = { snd_soc_dapm_pre, snd_soc_dapm_micbias, snd_soc_dapm_mic, snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_dac, - snd_soc_dapm_mixer, snd_soc_dapm_pga, snd_soc_dapm_adc, snd_soc_dapm_hp, - snd_soc_dapm_spk, snd_soc_dapm_post + snd_soc_dapm_mixer, snd_soc_dapm_mixer_named_ctl, snd_soc_dapm_pga, + snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, snd_soc_dapm_post }; + static int dapm_down_seq[] = { snd_soc_dapm_pre, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, - snd_soc_dapm_pga, snd_soc_dapm_mixer, snd_soc_dapm_dac, snd_soc_dapm_mic, - snd_soc_dapm_micbias, snd_soc_dapm_mux, snd_soc_dapm_value_mux, - snd_soc_dapm_post + snd_soc_dapm_pga, snd_soc_dapm_mixer_named_ctl, snd_soc_dapm_mixer, + snd_soc_dapm_dac, snd_soc_dapm_mic, snd_soc_dapm_micbias, + snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_post }; static int dapm_status = 1; @@ -101,7 +102,8 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w, { switch (w->id) { case snd_soc_dapm_switch: - case snd_soc_dapm_mixer: { + case snd_soc_dapm_mixer: + case snd_soc_dapm_mixer_named_ctl: { int val; struct soc_mixer_control *mc = (struct soc_mixer_control *) w->kcontrols[i].private_value; @@ -323,15 +325,32 @@ static int dapm_new_mixer(struct snd_soc_codec *codec, if (path->name != (char*)w->kcontrols[i].name) continue; - /* add dapm control with long name */ - name_len = 2 + strlen(w->name) - + strlen(w->kcontrols[i].name); + /* add dapm control with long name. + * for dapm_mixer this is the concatenation of the + * mixer and kcontrol name. + * for dapm_mixer_named_ctl this is simply the + * kcontrol name. + */ + name_len = strlen(w->kcontrols[i].name) + 1; + if (w->id != snd_soc_dapm_mixer_named_ctl) + name_len += 1 + strlen(w->name); + path->long_name = kmalloc(name_len, GFP_KERNEL); + if (path->long_name == NULL) return -ENOMEM; - snprintf(path->long_name, name_len, "%s %s", - w->name, w->kcontrols[i].name); + switch (w->id) { + default: + snprintf(path->long_name, name_len, "%s %s", + w->name, w->kcontrols[i].name); + break; + case snd_soc_dapm_mixer_named_ctl: + snprintf(path->long_name, name_len, "%s", + w->kcontrols[i].name); + break; + } + path->long_name[name_len - 1] = '\0'; path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, @@ -503,6 +522,137 @@ int dapm_reg_event(struct snd_soc_dapm_widget *w, EXPORT_SYMBOL_GPL(dapm_reg_event); /* + * Scan a single DAPM widget for a complete audio path and update the + * power status appropriately. + */ +static int dapm_power_widget(struct snd_soc_codec *codec, int event, + struct snd_soc_dapm_widget *w) +{ + int in, out, power_change, power, ret; + + /* vmid - no action */ + if (w->id == snd_soc_dapm_vmid) + return 0; + + /* active ADC */ + if (w->id == snd_soc_dapm_adc && w->active) { + in = is_connected_input_ep(w); + dapm_clear_walk(w->codec); + w->power = (in != 0) ? 1 : 0; + dapm_update_bits(w); + return 0; + } + + /* active DAC */ + if (w->id == snd_soc_dapm_dac && w->active) { + out = is_connected_output_ep(w); + dapm_clear_walk(w->codec); + w->power = (out != 0) ? 1 : 0; + dapm_update_bits(w); + return 0; + } + + /* pre and post event widgets */ + if (w->id == snd_soc_dapm_pre) { + if (!w->event) + return 0; + + if (event == SND_SOC_DAPM_STREAM_START) { + ret = w->event(w, + NULL, SND_SOC_DAPM_PRE_PMU); + if (ret < 0) + return ret; + } else if (event == SND_SOC_DAPM_STREAM_STOP) { + ret = w->event(w, + NULL, SND_SOC_DAPM_PRE_PMD); + if (ret < 0) + return ret; + } + return 0; + } + if (w->id == snd_soc_dapm_post) { + if (!w->event) + return 0; + + if (event == SND_SOC_DAPM_STREAM_START) { + ret = w->event(w, + NULL, SND_SOC_DAPM_POST_PMU); + if (ret < 0) + return ret; + } else if (event == SND_SOC_DAPM_STREAM_STOP) { + ret = w->event(w, + NULL, SND_SOC_DAPM_POST_PMD); + if (ret < 0) + return ret; + } + return 0; + } + + /* all other widgets */ + in = is_connected_input_ep(w); + dapm_clear_walk(w->codec); + out = is_connected_output_ep(w); + dapm_clear_walk(w->codec); + power = (out != 0 && in != 0) ? 1 : 0; + power_change = (w->power == power) ? 0 : 1; + w->power = power; + + if (!power_change) + return 0; + + /* call any power change event handlers */ + if (w->event) + pr_debug("power %s event for %s flags %x\n", + w->power ? "on" : "off", + w->name, w->event_flags); + + /* power up pre event */ + if (power && w->event && + (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { + ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); + if (ret < 0) + return ret; + } + + /* power down pre event */ + if (!power && w->event && + (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { + ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); + if (ret < 0) + return ret; + } + + /* Lower PGA volume to reduce pops */ + if (w->id == snd_soc_dapm_pga && !power) + dapm_set_pga(w, power); + + dapm_update_bits(w); + + /* Raise PGA volume to reduce pops */ + if (w->id == snd_soc_dapm_pga && power) + dapm_set_pga(w, power); + + /* power up post event */ + if (power && w->event && + (w->event_flags & SND_SOC_DAPM_POST_PMU)) { + ret = w->event(w, + NULL, SND_SOC_DAPM_POST_PMU); + if (ret < 0) + return ret; + } + + /* power down post event */ + if (!power && w->event && + (w->event_flags & SND_SOC_DAPM_POST_PMD)) { + ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); + if (ret < 0) + return ret; + } + + return 0; +} + +/* * Scan each dapm widget for complete audio path. * A complete path is a route that has valid endpoints i.e.:- * @@ -514,7 +664,7 @@ EXPORT_SYMBOL_GPL(dapm_reg_event); static int dapm_power_widgets(struct snd_soc_codec *codec, int event) { struct snd_soc_dapm_widget *w; - int in, out, i, c = 1, *seq = NULL, ret = 0, power_change, power; + int i, c = 1, *seq = NULL, ret = 0; /* do we have a sequenced stream event */ if (event == SND_SOC_DAPM_STREAM_START) { @@ -525,135 +675,20 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event) seq = dapm_down_seq; } - for(i = 0; i < c; i++) { + for (i = 0; i < c; i++) { list_for_each_entry(w, &codec->dapm_widgets, list) { /* is widget in stream order */ if (seq && seq[i] && w->id != seq[i]) continue; - /* vmid - no action */ - if (w->id == snd_soc_dapm_vmid) - continue; - - /* active ADC */ - if (w->id == snd_soc_dapm_adc && w->active) { - in = is_connected_input_ep(w); - dapm_clear_walk(w->codec); - w->power = (in != 0) ? 1 : 0; - dapm_update_bits(w); - continue; - } - - /* active DAC */ - if (w->id == snd_soc_dapm_dac && w->active) { - out = is_connected_output_ep(w); - dapm_clear_walk(w->codec); - w->power = (out != 0) ? 1 : 0; - dapm_update_bits(w); - continue; - } - - /* pre and post event widgets */ - if (w->id == snd_soc_dapm_pre) { - if (!w->event) - continue; - - if (event == SND_SOC_DAPM_STREAM_START) { - ret = w->event(w, - NULL, SND_SOC_DAPM_PRE_PMU); - if (ret < 0) - return ret; - } else if (event == SND_SOC_DAPM_STREAM_STOP) { - ret = w->event(w, - NULL, SND_SOC_DAPM_PRE_PMD); - if (ret < 0) - return ret; - } - continue; - } - if (w->id == snd_soc_dapm_post) { - if (!w->event) - continue; - - if (event == SND_SOC_DAPM_STREAM_START) { - ret = w->event(w, - NULL, SND_SOC_DAPM_POST_PMU); - if (ret < 0) - return ret; - } else if (event == SND_SOC_DAPM_STREAM_STOP) { - ret = w->event(w, - NULL, SND_SOC_DAPM_POST_PMD); - if (ret < 0) - return ret; - } - continue; - } - - /* all other widgets */ - in = is_connected_input_ep(w); - dapm_clear_walk(w->codec); - out = is_connected_output_ep(w); - dapm_clear_walk(w->codec); - power = (out != 0 && in != 0) ? 1 : 0; - power_change = (w->power == power) ? 0: 1; - w->power = power; - - if (!power_change) - continue; - - /* call any power change event handlers */ - if (w->event) - pr_debug("power %s event for %s flags %x\n", - w->power ? "on" : "off", - w->name, w->event_flags); - - /* power up pre event */ - if (power && w->event && - (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { - ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); - if (ret < 0) - return ret; - } - - /* power down pre event */ - if (!power && w->event && - (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { - ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); - if (ret < 0) - return ret; - } - - /* Lower PGA volume to reduce pops */ - if (w->id == snd_soc_dapm_pga && !power) - dapm_set_pga(w, power); - - dapm_update_bits(w); - - /* Raise PGA volume to reduce pops */ - if (w->id == snd_soc_dapm_pga && power) - dapm_set_pga(w, power); - - /* power up post event */ - if (power && w->event && - (w->event_flags & SND_SOC_DAPM_POST_PMU)) { - ret = w->event(w, - NULL, SND_SOC_DAPM_POST_PMU); - if (ret < 0) - return ret; - } - - /* power down post event */ - if (!power && w->event && - (w->event_flags & SND_SOC_DAPM_POST_PMD)) { - ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); - if (ret < 0) - return ret; - } + ret = dapm_power_widget(codec, event, w); + if (ret != 0) + return ret; } } - return ret; + return 0; } #ifdef DEBUG @@ -687,6 +722,7 @@ static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action) case snd_soc_dapm_adc: case snd_soc_dapm_pga: case snd_soc_dapm_mixer: + case snd_soc_dapm_mixer_named_ctl: if (w->name) { in = is_connected_input_ep(w); dapm_clear_walk(w->codec); @@ -760,6 +796,7 @@ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, int found = 0; if (widget->id != snd_soc_dapm_mixer && + widget->id != snd_soc_dapm_mixer_named_ctl && widget->id != snd_soc_dapm_switch) return -ENODEV; @@ -795,7 +832,7 @@ static ssize_t dapm_widget_show(struct device *dev, struct device_attribute *attr, char *buf) { struct snd_soc_device *devdata = dev_get_drvdata(dev); - struct snd_soc_codec *codec = devdata->codec; + struct snd_soc_codec *codec = devdata->card->codec; struct snd_soc_dapm_widget *w; int count = 0; char *state = "not set"; @@ -813,6 +850,7 @@ static ssize_t dapm_widget_show(struct device *dev, case snd_soc_dapm_adc: case snd_soc_dapm_pga: case snd_soc_dapm_mixer: + case snd_soc_dapm_mixer_named_ctl: if (w->name) count += sprintf(buf + count, "%s: %s\n", w->name, w->power ? "On":"Off"); @@ -876,7 +914,7 @@ static void dapm_free_widgets(struct snd_soc_codec *codec) } static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec, - char *pin, int status) + const char *pin, int status) { struct snd_soc_dapm_widget *w; @@ -991,6 +1029,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, break; case snd_soc_dapm_switch: case snd_soc_dapm_mixer: + case snd_soc_dapm_mixer_named_ctl: ret = dapm_connect_mixer(codec, wsource, wsink, path, control); if (ret != 0) goto err; @@ -1068,6 +1107,7 @@ int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec) switch(w->id) { case snd_soc_dapm_switch: case snd_soc_dapm_mixer: + case snd_soc_dapm_mixer_named_ctl: dapm_new_mixer(codec, w); break; case snd_soc_dapm_mux: @@ -1396,6 +1436,76 @@ out: EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); /** + * snd_soc_dapm_info_pin_switch - Info for a pin switch + * + * @kcontrol: mixer control + * @uinfo: control element information + * + * Callback to provide information about a pin switch control. + */ +int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); + +/** + * snd_soc_dapm_get_pin_switch - Get information for a pin switch + * + * @kcontrol: mixer control + * @ucontrol: Value + */ +int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + const char *pin = (const char *)kcontrol->private_value; + + mutex_lock(&codec->mutex); + + ucontrol->value.integer.value[0] = + snd_soc_dapm_get_pin_status(codec, pin); + + mutex_unlock(&codec->mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); + +/** + * snd_soc_dapm_put_pin_switch - Set information for a pin switch + * + * @kcontrol: mixer control + * @ucontrol: Value + */ +int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + const char *pin = (const char *)kcontrol->private_value; + + mutex_lock(&codec->mutex); + + if (ucontrol->value.integer.value[0]) + snd_soc_dapm_enable_pin(codec, pin); + else + snd_soc_dapm_disable_pin(codec, pin); + + snd_soc_dapm_sync(codec); + + mutex_unlock(&codec->mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); + +/** * snd_soc_dapm_new_control - create new dapm control * @codec: audio codec * @widget: widget template @@ -1527,8 +1637,8 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev, enum snd_soc_bias_level level) { - struct snd_soc_codec *codec = socdev->codec; struct snd_soc_card *card = socdev->card; + struct snd_soc_codec *codec = socdev->card->codec; int ret = 0; if (card->set_bias_level) @@ -1549,7 +1659,7 @@ int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev, * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to * do any widget power switching. */ -int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, char *pin) +int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin) { return snd_soc_dapm_set_pin(codec, pin, 1); } @@ -1564,7 +1674,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to * do any widget power switching. */ -int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, char *pin) +int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin) { return snd_soc_dapm_set_pin(codec, pin, 0); } @@ -1584,7 +1694,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to * do any widget power switching. */ -int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, char *pin) +int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin) { return snd_soc_dapm_set_pin(codec, pin, 0); } @@ -1599,7 +1709,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); * * Returns 1 for connected otherwise 0. */ -int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, char *pin) +int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin) { struct snd_soc_dapm_widget *w; @@ -1620,7 +1730,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); */ void snd_soc_dapm_free(struct snd_soc_device *socdev) { - struct snd_soc_codec *codec = socdev->codec; + struct snd_soc_codec *codec = socdev->card->codec; snd_soc_dapm_sys_remove(socdev->dev); dapm_free_widgets(codec); |