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-rw-r--r--sound/soc/soc-dapm.c67
1 files changed, 53 insertions, 14 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 25363829e60..7c2dd4ec8df 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -54,16 +54,6 @@
#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 */
static int dapm_up_seq[] = {
snd_soc_dapm_pre, snd_soc_dapm_micbias, snd_soc_dapm_mic,
@@ -80,6 +70,28 @@ 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)
@@ -217,9 +229,9 @@ 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);
return change;
@@ -803,20 +815,47 @@ 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)
+
+{
+ if (strict_strtoul(buf, 10, &pop_time) < 0)
+ 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 */