ASoC: s3c-i2s-v2 needs to declare a license for modular builds
[pandora-kernel.git] / sound / soc / soc-dapm.c
index a35ce69..735903a 100644 (file)
@@ -139,7 +139,7 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
        }
        break;
        case snd_soc_dapm_value_mux: {
-               struct soc_value_enum *e = (struct soc_value_enum *)
+               struct soc_enum *e = (struct soc_enum *)
                        w->kcontrols[i].private_value;
                int val, item;
 
@@ -202,30 +202,6 @@ static int dapm_connect_mux(struct snd_soc_codec *codec,
        return -ENODEV;
 }
 
-/* connect value_mux widget to it's interconnecting audio paths */
-static int dapm_connect_value_mux(struct snd_soc_codec *codec,
-       struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
-       struct snd_soc_dapm_path *path, const char *control_name,
-       const struct snd_kcontrol_new *kcontrol)
-{
-       struct soc_value_enum *e = (struct soc_value_enum *)
-                       kcontrol->private_value;
-       int i;
-
-       for (i = 0; i < e->max; i++) {
-               if (!(strcmp(control_name, e->texts[i]))) {
-                       list_add(&path->list, &codec->dapm_paths);
-                       list_add(&path->list_sink, &dest->sources);
-                       list_add(&path->list_source, &src->sinks);
-                       path->name = (char *)e->texts[i];
-                       dapm_set_path_status(dest, path, 0);
-                       return 0;
-               }
-       }
-
-       return -ENODEV;
-}
-
 /* connect mixer widget to it's interconnecting audio paths */
 static int dapm_connect_mixer(struct snd_soc_codec *codec,
        struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
@@ -356,7 +332,7 @@ static int dapm_new_mixer(struct snd_soc_codec *codec,
                         * kcontrol name.
                         */
                        name_len = strlen(w->kcontrols[i].name) + 1;
-                       if (w->id == snd_soc_dapm_mixer)
+                       if (w->id != snd_soc_dapm_mixer_named_ctl)
                                name_len += 1 + strlen(w->name);
 
                        path->long_name = kmalloc(name_len, GFP_KERNEL);
@@ -365,15 +341,14 @@ static int dapm_new_mixer(struct snd_soc_codec *codec,
                                return -ENOMEM;
 
                        switch (w->id) {
-                       case snd_soc_dapm_mixer:
                        default:
                                snprintf(path->long_name, name_len, "%s %s",
                                         w->name, w->kcontrols[i].name);
-                       break;
+                               break;
                        case snd_soc_dapm_mixer_named_ctl:
                                snprintf(path->long_name, name_len, "%s",
                                         w->kcontrols[i].name);
-                       break;
+                               break;
                        }
 
                        path->long_name[name_len - 1] = '\0';
@@ -546,6 +521,137 @@ 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.:-
@@ -558,7 +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) {
@@ -569,135 +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
@@ -765,7 +756,8 @@ static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
        struct snd_soc_dapm_path *path;
        int found = 0;
 
-       if (widget->id != snd_soc_dapm_mux)
+       if (widget->id != snd_soc_dapm_mux &&
+           widget->id != snd_soc_dapm_value_mux)
                return -ENODEV;
 
        if (!snd_soc_test_bits(widget->codec, e->reg, mask, val))
@@ -795,45 +787,6 @@ static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
        return 0;
 }
 
-/* test and update the power status of a value_mux widget */
-static int dapm_value_mux_update_power(struct snd_soc_dapm_widget *widget,
-                                struct snd_kcontrol *kcontrol, int mask,
-                                int mux, int val, struct soc_value_enum *e)
-{
-       struct snd_soc_dapm_path *path;
-       int found = 0;
-
-       if (widget->id != snd_soc_dapm_value_mux)
-               return -ENODEV;
-
-       if (!snd_soc_test_bits(widget->codec, e->reg, mask, val))
-               return 0;
-
-       /* find dapm widget path assoc with kcontrol */
-       list_for_each_entry(path, &widget->codec->dapm_paths, list) {
-               if (path->kcontrol != kcontrol)
-                       continue;
-
-               if (!path->name || !e->texts[mux])
-                       continue;
-
-               found = 1;
-               /* we now need to match the string in the enum to the path */
-               if (!(strcmp(path->name, e->texts[mux])))
-                       path->connect = 1; /* new connection */
-               else
-                       path->connect = 0; /* old connection must be
-                                             powered down */
-       }
-
-       if (found) {
-               dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP);
-               dump_dapm(widget->codec, "mux power update");
-       }
-
-       return 0;
-}
-
 /* test and update the power status of a mixer or switch widget */
 static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
                                   struct snd_kcontrol *kcontrol, int reg,
@@ -879,7 +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";
@@ -1068,17 +1021,12 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
                path->connect = 1;
                return 0;
        case snd_soc_dapm_mux:
+       case snd_soc_dapm_value_mux:
                ret = dapm_connect_mux(codec, wsource, wsink, path, control,
                        &wsink->kcontrols[0]);
                if (ret != 0)
                        goto err;
                break;
-       case snd_soc_dapm_value_mux:
-               ret = dapm_connect_value_mux(codec, wsource, wsink, path,
-                       control, &wsink->kcontrols[0]);
-               if (ret != 0)
-                       goto err;
-               break;
        case snd_soc_dapm_switch:
        case snd_soc_dapm_mixer:
        case snd_soc_dapm_mixer_named_ctl:
@@ -1407,8 +1355,7 @@ int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
        struct snd_ctl_elem_value *ucontrol)
 {
        struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
-       struct soc_value_enum *e = (struct soc_value_enum *)
-                       kcontrol->private_value;
+       struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
        unsigned short reg_val, val, mux;
 
        reg_val = snd_soc_read(widget->codec, e->reg);
@@ -1448,8 +1395,7 @@ int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
        struct snd_ctl_elem_value *ucontrol)
 {
        struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
-       struct soc_value_enum *e = (struct soc_value_enum *)
-                       kcontrol->private_value;
+       struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
        unsigned short val, mux;
        unsigned short mask;
        int ret = 0;
@@ -1468,7 +1414,7 @@ int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
 
        mutex_lock(&widget->codec->mutex);
        widget->value = val;
-       dapm_value_mux_update_power(widget, kcontrol, mask, mux, val, e);
+       dapm_mux_update_power(widget, kcontrol, mask, mux, val, e);
        if (widget->event) {
                if (widget->event_flags & SND_SOC_DAPM_PRE_REG) {
                        ret = widget->event(widget,
@@ -1489,6 +1435,76 @@ 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
@@ -1621,8 +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)
@@ -1714,7 +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);