From 0f98c24b807f024d42cf743897e2c1d95ff1e8be Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 21 Jun 2011 12:51:33 +0200
Subject: [PATCH] ALSA: hda - Assign smart51 only in the same stack for VIA
 codecs

The input jacks assigned as the smart51 outputs must be in the same
stack, either rear, front or other.  Also, prefer line-in as the surround
to mic-in.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_via.c | 63 +++++++++++++++++++--------------------
 1 file changed, 30 insertions(+), 33 deletions(-)

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 7b353405e068..785f7f5022a4 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -822,26 +822,6 @@ static void mute_aa_path(struct hda_codec *codec, int mute)
 	}
 }
 
-static bool is_smart51_candidate(struct hda_codec *codec, hda_nid_t pin)
-{
-	struct via_spec *spec = codec->spec;
-	const struct auto_pin_cfg *cfg = &spec->autocfg;
-	int i;
-
-	for (i = 0; i < cfg->num_inputs; i++) {
-		unsigned int defcfg;
-		if (pin != cfg->inputs[i].pin)
-			continue;
-		if (cfg->inputs[i].type > AUTO_PIN_LINE_IN)
-			return false;
-		defcfg = snd_hda_codec_get_pincfg(codec, pin);
-		if (snd_hda_get_input_pin_attr(defcfg) < INPUT_PIN_ATTR_NORMAL)
-			return false;
-		return true;
-	}
-	return false;
-}
-
 static bool is_smart51_pins(struct hda_codec *codec, hda_nid_t pin)
 {
 	struct via_spec *spec = codec->spec;
@@ -1692,21 +1672,38 @@ static void mangle_smart51(struct hda_codec *codec)
 {
 	struct via_spec *spec = codec->spec;
 	struct auto_pin_cfg *cfg = &spec->autocfg;
-	int i, nums = 0;
-
-	for (i = 0; i < cfg->num_inputs; i++) {
-		if (is_smart51_candidate(codec, cfg->inputs[i].pin))
+	struct auto_pin_cfg_item *ins = cfg->inputs;
+	int i, j, nums, attr;
+	int pins[AUTO_CFG_MAX_INS];
+
+	for (attr = INPUT_PIN_ATTR_REAR; attr >= INPUT_PIN_ATTR_NORMAL; attr--) {
+		nums = 0;
+		for (i = 0; i < cfg->num_inputs; i++) {
+			unsigned int def;
+			if (ins[i].type > AUTO_PIN_LINE_IN)
+				continue;
+			def = snd_hda_codec_get_pincfg(codec, ins[i].pin);
+			if (snd_hda_get_input_pin_attr(def) != attr)
+				continue;
+			for (j = 0; j < nums; j++)
+				if (ins[pins[j]].type < ins[i].type) {
+					memmove(pins + j + 1, pins + j,
+						(nums - j - 1) * sizeof(int));
+					break;
+				}
+			pins[j] = i;
 			nums++;
-	}
-	if (cfg->line_outs + nums < 3)
-		return;
-	for (i = 0; i < cfg->num_inputs; i++) {
-		if (!is_smart51_candidate(codec, cfg->inputs[i].pin))
+		}
+		if (cfg->line_outs + nums < 3)
 			continue;
-		spec->smart51_pins[spec->smart51_nums++] = cfg->inputs[i].pin;
-		cfg->line_out_pins[cfg->line_outs++] = cfg->inputs[i].pin;
-		if (cfg->line_outs == 3)
-			break;
+		for (i = 0; i < nums; i++) {
+			hda_nid_t pin = ins[pins[i]].pin;
+			spec->smart51_pins[spec->smart51_nums++] = pin;
+			cfg->line_out_pins[cfg->line_outs++] = pin;
+			if (cfg->line_outs == 3)
+				break;
+		}
+		return;
 	}
 }
 
-- 
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