1 files changed, 258 insertions, 86 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index af3326c63504..2c87061c2a6b 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -10,11 +10,6 @@
  *  Free Software Foundation;  either version 2 of the  License, or (at your
  *  option) any later version.
  *
- *  Revision history
- *    12th Aug 2005   Initial version.
- *    25th Oct 2005   Implemented path power domain.
- *    18th Dec 2005   Implemented machine and stream level power domain.
- *
  *  Features:
  *    o Changes power status of internal codec blocks depending on the
  *      dynamic configuration of codec internal audio paths and active
@@ -50,23 +45,10 @@
 #include <sound/initval.h>
 
 /* debug */
-#define DAPM_DEBUG 0
-#if DAPM_DEBUG
+#ifdef DEBUG
 #define dump_dapm(codec, action) dbg_dump_dapm(codec, action)
-#define dbg(format, arg...) printk(format, ## arg)
 #else
 #define dump_dapm(codec, action)
-#define dbg(format, arg...)
-#endif
-
-#define POP_DEBUG 0
-#if POP_DEBUG
-#define POP_TIME 500 /* 500 msecs - change if pop debug is too fast */
-#define pop_wait(time) schedule_timeout_uninterruptible(msecs_to_jiffies(time))
-#define pop_dbg(format, arg...) printk(format, ## arg); pop_wait(POP_TIME)
-#else
-#define pop_dbg(format, arg...)
-#define pop_wait(time)
 #endif
 
 /* dapm power sequences - make this per codec in the future */
@@ -85,6 +67,28 @@ static int dapm_status = 1;
 module_param(dapm_status, int, 0);
 MODULE_PARM_DESC(dapm_status, "enable DPM sysfs entries");
 
+static unsigned int pop_time;
+
+static void pop_wait(void)
+{
+        if (pop_time)
+                schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time));
+}
+
+static void pop_dbg(const char *fmt, ...)
+{
+        va_list args;
+
+        va_start(args, fmt);
+
+        if (pop_time) {
+                vprintk(fmt, args);
+                pop_wait();
+        }
+
+        va_end(args);
+}
+
 /* create a new dapm widget */
 static inline struct snd_soc_dapm_widget *dapm_cnew_widget(
         const struct snd_soc_dapm_widget *_widget)
@@ -222,11 +226,12 @@ static int dapm_update_bits(struct snd_soc_dapm_widget *widget)
         change = old != new;
         if (change) {
                 pop_dbg("pop test %s : %s in %d ms\n", widget->name,
-                        widget->power ? "on" : "off", POP_TIME);
+                        widget->power ? "on" : "off", pop_time);
                 snd_soc_write(codec, widget->reg, new);
-                pop_wait(POP_TIME);
+                pop_wait();
         }
-        dbg("reg %x old %x new %x change %d\n", widget->reg, old, new, change);
+        pr_debug("reg %x old %x new %x change %d\n", widget->reg,
+                 old, new, change);
         return change;
 }
 
@@ -448,6 +453,25 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget)
 }
 
 /*
+ * Handler for generic register modifier widget.
+ */
+int dapm_reg_event(struct snd_soc_dapm_widget *w,
+                   struct snd_kcontrol *kcontrol, int event)
+{
+        unsigned int val;
+
+        if (SND_SOC_DAPM_EVENT_ON(event))
+                val = w->on_val;
+        else
+                val = w->off_val;
+
+        snd_soc_update_bits(w->codec, -(w->reg + 1),
+                            w->mask << w->shift, val << w->shift);
+
+        return 0;
+}
+
+/*
  * Scan each dapm widget for complete audio path.
  * A complete path is a route that has valid endpoints i.e.:-
  *
@@ -565,8 +589,8 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event)
                         /* call any power change event handlers */
                         if (power_change) {
                                 if (w->event) {
-                                        dbg("power %s event for %s flags %x\n",
-                                                w->power ? "on" : "off", w->name, w->event_flags);
+                                        pr_debug("power %s event for %s flags %x\n",
+                                                 w->power ? "on" : "off", w->name, w->event_flags);
                                         if (power) {
                                                 /* power up event */
                                                 if (w->event_flags & SND_SOC_DAPM_PRE_PMU) {
@@ -608,7 +632,7 @@ static int dapm_power_widgets(struct snd_soc_codec *codec, int event)
         return ret;
 }
 
-#if DAPM_DEBUG
+#ifdef DEBUG
 static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action)
 {
         struct snd_soc_dapm_widget *w;
@@ -693,8 +717,10 @@ static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
                         path->connect = 0; /* old connection must be powered down */
         }
 
-        if (found)
+        if (found) {
                 dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP);
+                dump_dapm(widget->codec, "mux power update");
+        }
 
         return 0;
 }
@@ -730,8 +756,10 @@ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
                 break;
         }
 
-        if (found)
+        if (found) {
                 dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP);
+                dump_dapm(widget->codec, "mixer power update");
+        }
 
         return 0;
 }
@@ -768,21 +796,18 @@ static ssize_t dapm_widget_show(struct device *dev,
                 }
         }
 
-        switch(codec->dapm_state){
-        case SNDRV_CTL_POWER_D0:
-                state = "D0";
+        switch (codec->bias_level) {
+        case SND_SOC_BIAS_ON:
+                state = "On";
                 break;
-        case SNDRV_CTL_POWER_D1:
-                state = "D1";
+        case SND_SOC_BIAS_PREPARE:
+                state = "Prepare";
                 break;
-        case SNDRV_CTL_POWER_D2:
-                state = "D2";
+        case SND_SOC_BIAS_STANDBY:
+                state = "Standby";
                 break;
-        case SNDRV_CTL_POWER_D3hot:
-                state = "D3hot";
-                break;
-        case SNDRV_CTL_POWER_D3cold:
-                state = "D3cold";
+        case SND_SOC_BIAS_OFF:
+                state = "Off";
                 break;
         }
         count += sprintf(buf + count, "PM State: %s\n", state);
@@ -792,20 +817,51 @@ static ssize_t dapm_widget_show(struct device *dev,
 
 static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL);
 
+/* pop/click delay times */
+static ssize_t dapm_pop_time_show(struct device *dev,
+        struct device_attribute *attr, char *buf)
+{
+        return sprintf(buf, "%d\n", pop_time);
+}
+
+static ssize_t dapm_pop_time_store(struct device *dev,
+                                   struct device_attribute *attr,
+                                   const char *buf, size_t count)
+
+{
+        unsigned long val;
+
+        if (strict_strtoul(buf, 10, &val) >= 0)
+                pop_time = val;
+        else
+                printk(KERN_ERR "Unable to parse pop_time setting\n");
+
+        return count;
+}
+
+static DEVICE_ATTR(dapm_pop_time, 0744, dapm_pop_time_show,
+                   dapm_pop_time_store);
+
 int snd_soc_dapm_sys_add(struct device *dev)
 {
         int ret = 0;
 
-        if (dapm_status)
+        if (dapm_status) {
                 ret = device_create_file(dev, &dev_attr_dapm_widget);
 
+                if (ret == 0)
+                        ret = device_create_file(dev, &dev_attr_dapm_pop_time);
+        }
+
         return ret;
 }
 
 static void snd_soc_dapm_sys_remove(struct device *dev)
 {
-        if (dapm_status)
+        if (dapm_status) {
+                device_remove_file(dev, &dev_attr_dapm_pop_time);
                 device_remove_file(dev, &dev_attr_dapm_widget);
+        }
 }
 
 /* free all dapm widgets and resources */
@@ -826,8 +882,25 @@ 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)
+{
+        struct snd_soc_dapm_widget *w;
+
+        list_for_each_entry(w, &codec->dapm_widgets, list) {
+                if (!strcmp(w->name, pin)) {
+                        pr_debug("dapm: %s: pin %s\n", codec->name, pin);
+                        w->connected = status;
+                        return 0;
+                }
+        }
+
+        pr_err("dapm: %s: configuring unknown pin %s\n", codec->name, pin);
+        return -EINVAL;
+}
+
 /**
- * snd_soc_dapm_sync_endpoints - scan and power dapm paths
+ * snd_soc_dapm_sync - scan and power dapm paths
  * @codec: audio codec
  *
  * Walks all dapm audio paths and powers widgets according to their
@@ -835,27 +908,16 @@ static void dapm_free_widgets(struct snd_soc_codec *codec)
  *
  * Returns 0 for success.
  */
-int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec)
+int snd_soc_dapm_sync(struct snd_soc_codec *codec)
 {
-        return dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP);
+        int ret = dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP);
+        dump_dapm(codec, "sync");
+        return ret;
 }
-EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_endpoints);
+EXPORT_SYMBOL_GPL(snd_soc_dapm_sync);
 
-/**
- * snd_soc_dapm_connect_input - connect dapm widgets
- * @codec: audio codec
- * @sink: name of target widget
- * @control: mixer control name
- * @source: name of source name
- *
- * Connects 2 dapm widgets together via a named audio path. The sink is
- * the widget receiving the audio signal, whilst the source is the sender
- * of the audio signal.
- *
- * Returns 0 for success else error.
- */
-int snd_soc_dapm_connect_input(struct snd_soc_codec *codec, const char *sink,
-        const char * control, const char *source)
+static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
+        const char *sink, const char *control, const char *source)
 {
         struct snd_soc_dapm_path *path;
         struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w;
@@ -957,9 +1019,64 @@ err:
         kfree(path);
         return ret;
 }
+
+/**
+ * snd_soc_dapm_connect_input - connect dapm widgets
+ * @codec: audio codec
+ * @sink: name of target widget
+ * @control: mixer control name
+ * @source: name of source name
+ *
+ * Connects 2 dapm widgets together via a named audio path. The sink is
+ * the widget receiving the audio signal, whilst the source is the sender
+ * of the audio signal.
+ *
+ * This function has been deprecated in favour of snd_soc_dapm_add_routes().
+ *
+ * Returns 0 for success else error.
+ */
+int snd_soc_dapm_connect_input(struct snd_soc_codec *codec, const char *sink,
+        const char *control, const char *source)
+{
+        return snd_soc_dapm_add_route(codec, sink, control, source);
+}
 EXPORT_SYMBOL_GPL(snd_soc_dapm_connect_input);
 
 /**
+ * snd_soc_dapm_add_routes - Add routes between DAPM widgets
+ * @codec: codec
+ * @route: audio routes
+ * @num: number of routes
+ *
+ * Connects 2 dapm widgets together via a named audio path. The sink is
+ * the widget receiving the audio signal, whilst the source is the sender
+ * of the audio signal.
+ *
+ * Returns 0 for success else error. On error all resources can be freed
+ * with a call to snd_soc_card_free().
+ */
+int snd_soc_dapm_add_routes(struct snd_soc_codec *codec,
+                            const struct snd_soc_dapm_route *route, int num)
+{
+        int i, ret;
+
+        for (i = 0; i < num; i++) {
+                ret = snd_soc_dapm_add_route(codec, route->sink,
+                                             route->control, route->source);
+                if (ret < 0) {
+                        printk(KERN_ERR "Failed to add route %s->%s\n",
+                               route->source,
+                               route->sink);
+                        return ret;
+                }
+                route++;
+        }
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes);
+
+/**
  * snd_soc_dapm_new_widgets - add new dapm widgets
  * @codec: audio codec
  *
@@ -1234,6 +1351,33 @@ int snd_soc_dapm_new_control(struct snd_soc_codec *codec,
 EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control);
 
 /**
+ * snd_soc_dapm_new_controls - create new dapm controls
+ * @codec: audio codec
+ * @widget: widget array
+ * @num: number of widgets
+ *
+ * Creates new DAPM controls based upon the templates.
+ *
+ * Returns 0 for success else error.
+ */
+int snd_soc_dapm_new_controls(struct snd_soc_codec *codec,
+        const struct snd_soc_dapm_widget *widget,
+        int num)
+{
+        int i, ret;
+
+        for (i = 0; i < num; i++) {
+                ret = snd_soc_dapm_new_control(codec, widget);
+                if (ret < 0)
+                        return ret;
+                widget++;
+        }
+        return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls);
+
+
+/**
  * snd_soc_dapm_stream_event - send a stream event to the dapm core
  * @codec: audio codec
  * @stream: stream name
@@ -1257,8 +1401,8 @@ int snd_soc_dapm_stream_event(struct snd_soc_codec *codec,
         {
                 if (!w->sname)
                         continue;
-                dbg("widget %s\n %s stream %s event %d\n", w->name, w->sname,
-                        stream, event);
+                pr_debug("widget %s\n %s stream %s event %d\n",
+                         w->name, w->sname, stream, event);
                 if (strstr(w->sname, stream)) {
                         switch(event) {
                         case SND_SOC_DAPM_STREAM_START:
@@ -1294,53 +1438,81 @@ int snd_soc_dapm_stream_event(struct snd_soc_codec *codec,
 EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event);
 
 /**
- * snd_soc_dapm_device_event - send a device event to the dapm core
+ * snd_soc_dapm_set_bias_level - set the bias level for the system
  * @socdev: audio device
- * @event: device event
+ * @level: level to configure
  *
- * Sends a device event to the dapm core. The core then makes any
- * necessary machine or codec power changes..
+ * Configure the bias (power) levels for the SoC audio device.
  *
  * Returns 0 for success else error.
  */
-int snd_soc_dapm_device_event(struct snd_soc_device *socdev, int 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_machine *machine = socdev->machine;
+        int ret = 0;
 
-        if (machine->dapm_event)
-                machine->dapm_event(machine, event);
-        if (codec->dapm_event)
-                codec->dapm_event(codec, event);
-        return 0;
+        if (machine->set_bias_level)
+                ret = machine->set_bias_level(machine, level);
+        if (ret == 0 && codec->set_bias_level)
+                ret = codec->set_bias_level(codec, level);
+
+        return ret;
 }
-EXPORT_SYMBOL_GPL(snd_soc_dapm_device_event);
 
 /**
- * snd_soc_dapm_set_endpoint - set audio endpoint status
+ * snd_soc_dapm_enable_pin - enable pin.
+ * @snd_soc_codec: SoC codec
+ * @pin: pin name
+ *
+ * Enables input/output pin and it's parents or children widgets iff there is
+ * a valid audio route and active audio stream.
+ * 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)
+{
+        return snd_soc_dapm_set_pin(codec, pin, 1);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin);
+
+/**
+ * snd_soc_dapm_disable_pin - disable pin.
+ * @codec: SoC codec
+ * @pin: pin name
+ *
+ * Disables input/output pin and it's parents or children widgets.
+ * 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)
+{
+        return snd_soc_dapm_set_pin(codec, pin, 0);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin);
+
+/**
+ * snd_soc_dapm_get_pin_status - get audio pin status
  * @codec: audio codec
- * @endpoint: audio signal endpoint (or start point)
- * @status: point status
+ * @pin: audio signal pin endpoint (or start point)
  *
- * Set audio endpoint status - connected or disconnected.
+ * Get audio pin status - connected or disconnected.
  *
- * Returns 0 for success else error.
+ * Returns 1 for connected otherwise 0.
  */
-int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec,
-        char *endpoint, int status)
+int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, char *pin)
 {
         struct snd_soc_dapm_widget *w;
 
         list_for_each_entry(w, &codec->dapm_widgets, list) {
-                if (!strcmp(w->name, endpoint)) {
-                        w->connected = status;
-                        return 0;
-                }
+                if (!strcmp(w->name, pin))
+                        return w->connected;
         }
 
-        return -ENODEV;
+        return 0;
 }
-EXPORT_SYMBOL_GPL(snd_soc_dapm_set_endpoint);
+EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);
 
 /**
  * snd_soc_dapm_free - free dapm resources