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Diffstat (limited to 'sound/pci/hda/local.h')
-rw-r--r--sound/pci/hda/local.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/sound/pci/hda/local.h b/sound/pci/hda/local.h
new file mode 100644
index 0000000..28cb7f9
--- /dev/null
+++ b/sound/pci/hda/local.h
@@ -0,0 +1,39 @@
+/*
+ */
+
+#ifndef __HDAC_LOCAL_H
+#define __HDAC_LOCAL_H
+
+int hdac_read_parm(struct hdac_device *codec, hda_nid_t nid, int parm);
+
+#define get_wcaps(codec, nid) \
+ hdac_read_parm(codec, nid, AC_PAR_AUDIO_WIDGET_CAP)
+/* get the widget type from widget capability bits */
+static inline int get_wcaps_type(unsigned int wcaps)
+{
+ if (!wcaps)
+ return -1; /* invalid type */
+ return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
+}
+
+#define get_pin_caps(codec, nid) \
+ hdac_read_parm(codec, nid, AC_PAR_PIN_CAP)
+
+static inline
+unsigned int get_pin_cfg(struct hdac_device *codec, hda_nid_t nid)
+{
+ unsigned int val;
+
+ if (snd_hdac_read(codec, nid, AC_VERB_GET_CONFIG_DEFAULT, 0, &val))
+ return -1;
+ return val;
+}
+
+#define get_amp_caps(codec, nid, dir) \
+ hdac_read_parm(codec, nid, (dir) == HDA_OUTPUT ? \
+ AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP)
+
+#define get_power_caps(codec, nid) \
+ hdac_read_parm(codec, nid, AC_PAR_POWER_STATE)
+
+#endif /* __HDAC_LOCAL_H */