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);