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authorWang Xingchao <xingchao.wang@intel.com>2012-06-06 13:49:44 +0800
committerTakashi Iwai <tiwai@suse.de>2012-06-06 12:12:49 +0200
commitce63f3ba256a48023b425a4a6792f8da03d00948 (patch)
tree213ada4d578caf48cc323c3680bf4806cf80639c /sound/pci
parentf8f5701bdaf9134b1f90e5044a82c66324d2073f (diff)
downloadop-kernel-dev-ce63f3ba256a48023b425a4a6792f8da03d00948.zip
op-kernel-dev-ce63f3ba256a48023b425a4a6792f8da03d00948.tar.gz
ALSA: hda - add power states information in proc
add more power states information: - reset status - clock stop ok - power states error Output like: Power: setting=D0, actual=D0, Error, Clock-stop-OK, Setting-reset Signed-off-by: Wang Xingchao <xingchao.wang@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/hda/hda_codec.h3
-rw-r--r--sound/pci/hda/hda_proc.c9
2 files changed, 11 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 4fc3960..71864cdd 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -323,6 +323,9 @@ enum {
#define AC_PWRST_D1 0x01
#define AC_PWRST_D2 0x02
#define AC_PWRST_D3 0x03
+#define AC_PWRST_ERROR (1<<8)
+#define AC_PWRST_CLK_STOP_OK (1<<9)
+#define AC_PWRST_SETTING_RESET (1<<10)
/* Processing capabilies */
#define AC_PCAP_BENIGN (1<<0)
diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c
index e59e2f0..fb9ef13 100644
--- a/sound/pci/hda/hda_proc.c
+++ b/sound/pci/hda/hda_proc.c
@@ -455,10 +455,17 @@ static void print_power_state(struct snd_info_buffer *buffer,
snd_iprintf(buffer, " Power states: %s\n",
bits_names(sup, names, ARRAY_SIZE(names)));
- snd_iprintf(buffer, " Power: setting=%s, actual=%s\n",
+ snd_iprintf(buffer, " Power: setting=%s, actual=%s",
get_pwr_state(pwr & AC_PWRST_SETTING),
get_pwr_state((pwr & AC_PWRST_ACTUAL) >>
AC_PWRST_ACTUAL_SHIFT));
+ if (pwr & AC_PWRST_ERROR)
+ snd_iprintf(buffer, ", Error");
+ if (pwr & AC_PWRST_CLK_STOP_OK)
+ snd_iprintf(buffer, ", Clock-stop-OK");
+ if (pwr & AC_PWRST_SETTING_RESET)
+ snd_iprintf(buffer, ", Setting-reset");
+ snd_iprintf(buffer, "\n");
}
static void print_unsol_cap(struct snd_info_buffer *buffer,
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