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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>
This commit is contained in:
Wang Xingchao 2013-06-24 23:41:23 -04:00 committed by Takashi Iwai
parent eb33ccf763
commit 8b2c7a5c40
1 changed files with 15 additions and 0 deletions
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15
sound/pci/hda/hda_proc.c
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@ -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,