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Diffstat (limited to 'sound/pci/hda/hda_codec.c')
-rw-r--r--sound/pci/hda/hda_codec.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 1b5575ecb0a..0f70d2d102e 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1052,6 +1052,7 @@ EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup_stream);
/* FIXME: more better hash key? */
#define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
+#define HDA_HASH_PINCAP_KEY(nid) (u32)((nid) + (0x02 << 24))
#define INFO_AMP_CAPS (1<<0)
#define INFO_AMP_VOL(ch) (1 << (1 + (ch)))
@@ -1142,6 +1143,21 @@ int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
}
EXPORT_SYMBOL_HDA(snd_hda_override_amp_caps);
+u32 snd_hda_query_pin_caps(struct hda_codec *codec, hda_nid_t nid)
+{
+ struct hda_amp_info *info;
+
+ info = get_alloc_amp_hash(codec, HDA_HASH_PINCAP_KEY(nid));
+ if (!info)
+ return 0;
+ if (!info->head.val) {
+ info->amp_caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
+ info->head.val |= INFO_AMP_CAPS;
+ }
+ return info->amp_caps;
+}
+EXPORT_SYMBOL_HDA(snd_hda_query_pin_caps);
+
/*
* read the current volume to info
* if the cache exists, read the cache value.