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author | Takashi Iwai <tiwai@suse.de> | 2011-06-28 10:45:47 (GMT) |
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committer | Takashi Iwai <tiwai@suse.de> | 2011-06-29 06:01:46 (GMT) |
commit | 8d087c7600499463b7b8e3d4da4da40669cb8bfa (patch) | |
tree | 817ba350193d4c1cd77546dbd0bbe0d68ee14ecf /sound/pci/hda/patch_via.c | |
parent | 63f10d2ca78c17cdd612c1daee7daffacca8b7fb (diff) | |
download | linux-fsl-qoriq-8d087c7600499463b7b8e3d4da4da40669cb8bfa.tar.xz |
ALSA: hda - Create snd_hda_get_conn_index() helper function
Create snd_hda_get_conn_index() helper function for obtaining the
connection index of the widget. Replaced the similar codes used in
several codec-drivers with this common helper.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_via.c')
-rw-r--r-- | sound/pci/hda/patch_via.c | 40 |
1 files changed, 4 insertions, 36 deletions
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index 997b705..76142c1 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -410,27 +410,8 @@ static int via_new_analog_input(struct via_spec *spec, const char *ctlname, return 0; } -/* return the index of the given widget nid as the source of mux; - * return -1 if not found; - * if num_conns is non-NULL, set the total number of connections - */ -static int __get_connection_index(struct hda_codec *codec, hda_nid_t mux, - hda_nid_t nid, int *num_conns) -{ - hda_nid_t conn[HDA_MAX_NUM_INPUTS]; - int i, nums; - - nums = snd_hda_get_connections(codec, mux, conn, ARRAY_SIZE(conn)); - if (num_conns) - *num_conns = nums; - for (i = 0; i < nums; i++) - if (conn[i] == nid) - return i; - return -1; -} - #define get_connection_index(codec, mux, nid) \ - __get_connection_index(codec, mux, nid, NULL) + snd_hda_get_conn_index(codec, mux, nid, 0) static bool check_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir, unsigned int mask) @@ -2011,23 +1992,10 @@ static void add_loopback_list(struct via_spec *spec, hda_nid_t mix, int idx) spec->loopback.amplist = spec->loopback_list; } -/* check whether the path from src to dst is reachable */ static bool is_reachable_nid(struct hda_codec *codec, hda_nid_t src, - hda_nid_t dst, int depth) + hda_nid_t dst) { - hda_nid_t conn[8]; - int i, nums; - - nums = snd_hda_get_connections(codec, src, conn, ARRAY_SIZE(conn)); - for (i = 0; i < nums; i++) - if (conn[i] == dst) - return true; - if (++depth > MAX_NID_PATH_DEPTH) - return false; - for (i = 0; i < nums; i++) - if (is_reachable_nid(codec, conn[i], dst, depth)) - return true; - return false; + return snd_hda_get_conn_index(codec, src, dst, 1) >= 0; } /* add the input-route to the given pin */ @@ -2046,7 +2014,7 @@ static bool add_input_route(struct hda_codec *codec, hda_nid_t pin) continue; spec->inputs[spec->num_inputs].mux_idx = idx; } else { - if (!is_reachable_nid(codec, spec->adc_nids[c], pin, 0)) + if (!is_reachable_nid(codec, spec->adc_nids[c], pin)) continue; } spec->inputs[spec->num_inputs].adc_idx = c; |