ALSA: hda - Add In-driver connection info

Pin's connection list may change dynamically with hot-plug event
on Intel Haswell chip. Users would see connections be "0" in codec#.
when play audio on this pin, software driver choose converter from cache
connections. So add "In-driver connection" info to avoid confuse when
raw connections are different with cache connection.

Signed-off-by: Wang Xingchao <xingchao.wang@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 15 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c
index 0fee8fae590a..9760f001916d 100644
--- a/sound/pci/hda/hda_proc.c
+++ b/sound/pci/hda/hda_proc.c
@@ -504,6 +504,8 @@ static void print_conn_list(struct snd_info_buffer *buffer,
                             int conn_len)
 {
         int c, curr = -1;
+        const hda_nid_t *list;
+        int cache_len;
 
         if (conn_len > 1 &&
             wid_type != AC_WID_AUD_MIX &&
@@ -521,6 +523,19 @@ static void print_conn_list(struct snd_info_buffer *buffer,
                 }
                 snd_iprintf(buffer, "\n");
         }
+
+        /* Get Cache connections info */
+        cache_len = snd_hda_get_conn_list(codec, nid, &list);
+        if (cache_len != conn_len
+                        || memcmp(list, conn, conn_len)) {
+                snd_iprintf(buffer, "  In-driver Connection: %d\n", cache_len);
+                if (cache_len > 0) {
+                        snd_iprintf(buffer, "    ");
+                        for (c = 0; c < cache_len; c++)
+                                snd_iprintf(buffer, " 0x%02x", list[c]);
+                        snd_iprintf(buffer, "\n");
+                }
+        }
 }
 
 static void print_gpio(struct snd_info_buffer *buffer,