linux-kernel - [PATCH 14/23] sst: return correct output/input device id

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Date:	Tue, 03 May 2011 17:34:40 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	greg@...ah.com, linux-kernel@...r.kernel.org
Subject: [PATCH 14/23] sst: return correct output/input device id

From: Lu Guanqun <guanqun.lu@...el.com>

Without this patch, the change of output/input device can't be reflected
correctly. The mismatch reflects insane design, and should be fixed when
switching to the ASoC framework.

Signed-off-by: Lu Guanqun <guanqun.lu@...el.com>
Acked-by: Wu Fengguang <fengguang.wu@...el.com>
Signed-off-by: Alan Cox <alan@...ux.intel.com>
---

 drivers/staging/intel_sst/intelmid_ctrl.c |   21 ++++++++++++++++++++-
 1 files changed, 20 insertions(+), 1 deletions(-)


diff --git a/drivers/staging/intel_sst/intelmid_ctrl.c b/drivers/staging/intel_sst/intelmid_ctrl.c
index 2c3ee94..af9e112 100644
--- a/drivers/staging/intel_sst/intelmid_ctrl.c
+++ b/drivers/staging/intel_sst/intelmid_ctrl.c
@@ -504,8 +504,8 @@ static int snd_intelmad_device_get(struct snd_kcontrol *kcontrol,
 	WARN_ON(!kcontrol);
 
 	intelmaddata = kcontrol->private_data;
+	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
 	if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) {
-		scard_ops = intelmaddata->sstdrv_ops->scard_ops;
 		if (kcontrol->id.numid == OUTPUT_SEL)
 			uval->value.enumerated.item[0] =
 					scard_ops->output_dev_id;
@@ -517,6 +517,25 @@ static int snd_intelmad_device_get(struct snd_kcontrol *kcontrol,
 					scard_ops->lineout_dev_id;
 		else
 			return -EINVAL;
+	} else if (intelmaddata->cpu_id == CPU_CHIP_LINCROFT) {
+		if (kcontrol->id.numid == OUTPUT_SEL)
+			/* There is a mismatch here.
+			 * ALSA expects 1 for internal speaker.
+			 * But internally, we may give 2 for internal speaker.
+			 */
+			if (scard_ops->output_dev_id == MONO_EARPIECE ||
+			    scard_ops->output_dev_id == INTERNAL_SPKR)
+				uval->value.enumerated.item[0] = MONO_EARPIECE;
+			else if (scard_ops->output_dev_id == STEREO_HEADPHONE)
+				uval->value.enumerated.item[0] =
+					STEREO_HEADPHONE;
+			else
+				return -EINVAL;
+		else if (kcontrol->id.numid == INPUT_SEL)
+			uval->value.enumerated.item[0] =
+					scard_ops->input_dev_id;
+		else
+			return -EINVAL;
 	} else
 	uval->value.enumerated.item[0] = kcontrol->private_value;
 	return 0;

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