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path: root/sound/pci/hda/hda_hwdep.c
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Diffstat (limited to 'sound/pci/hda/hda_hwdep.c')
-rw-r--r--sound/pci/hda/hda_hwdep.c45
1 files changed, 41 insertions, 4 deletions
diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c
index cc24e6721d74..40ccb419b6e9 100644
--- a/sound/pci/hda/hda_hwdep.c
+++ b/sound/pci/hda/hda_hwdep.c
@@ -24,6 +24,7 @@
#include <linux/compat.h>
#include <linux/mutex.h>
#include <linux/ctype.h>
+#include <linux/string.h>
#include <linux/firmware.h>
#include <sound/core.h>
#include "hda_codec.h"
@@ -154,6 +155,44 @@ int /*__devinit*/ snd_hda_create_hwdep(struct hda_codec *codec)
return 0;
}
+#ifdef CONFIG_SND_HDA_POWER_SAVE
+static ssize_t power_on_acct_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct snd_hwdep *hwdep = dev_get_drvdata(dev);
+ struct hda_codec *codec = hwdep->private_data;
+ snd_hda_update_power_acct(codec);
+ return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_on_acct));
+}
+
+static ssize_t power_off_acct_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct snd_hwdep *hwdep = dev_get_drvdata(dev);
+ struct hda_codec *codec = hwdep->private_data;
+ snd_hda_update_power_acct(codec);
+ return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_off_acct));
+}
+
+static struct device_attribute power_attrs[] = {
+ __ATTR_RO(power_on_acct),
+ __ATTR_RO(power_off_acct),
+};
+
+int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec)
+{
+ struct snd_hwdep *hwdep = codec->hwdep;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(power_attrs); i++)
+ snd_add_device_sysfs_file(SNDRV_DEVICE_TYPE_HWDEP, hwdep->card,
+ hwdep->device, &power_attrs[i]);
+ return 0;
+}
+#endif /* CONFIG_SND_HDA_POWER_SAVE */
+
#ifdef CONFIG_SND_HDA_RECONFIG
/*
@@ -390,8 +429,7 @@ static int parse_hints(struct hda_codec *codec, const char *buf)
char *key, *val;
struct hda_hint *hint;
- while (isspace(*buf))
- buf++;
+ buf = skip_spaces(buf);
if (!*buf || *buf == '#' || *buf == '\n')
return 0;
if (*buf == '=')
@@ -406,8 +444,7 @@ static int parse_hints(struct hda_codec *codec, const char *buf)
return -EINVAL;
}
*val++ = 0;
- while (isspace(*val))
- val++;
+ val = skip_spaces(val);
remove_trail_spaces(key);
remove_trail_spaces(val);
hint = get_hint(codec, key);