ALSA: SB X-Fi driver merge

The Sound Blaster X-Fi driver supports Creative solutions based on
20K1 and 20K2 chipsets.

Supported hardware :

Creative Sound Blaster X-Fi Titanium Fatal1ty® Champion Series
Creative Sound Blaster X-Fi Titanium Fatal1ty Professional Series
Creative Sound Blaster X-Fi Titanium Professional Audio
Creative Sound Blaster X-Fi Titanium
Creative Sound Blaster X-Fi Elite Pro
Creative Sound Blaster X-Fi Platinum
Creative Sound Blaster X-Fi Fatal1ty
Creative Sound Blaster X-Fi XtremeGamer
Creative Sound Blaster X-Fi XtremeMusic

Current release features:

* ALSA PCM Playback
* ALSA Record
* ALSA Mixer

Note:

* External I/O modules detection not included.

Signed-off-by: Wai Yew CHAY <wychay@ctl.creative.com>
Singed-off-by: Ryan RICHARDS <ryan_richards@creativelabs.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 1108 insertions, 0 deletions

diff --git a/sound/pci/ctxfi/ctmixer.c b/sound/pci/ctxfi/ctmixer.c
new file mode 100644
index 00000000000..c80d692952f
--- /dev/null
+++ b/sound/pci/ctxfi/ctmixer.c
@@ -0,0 +1,1108 @@
+/**
+ * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
+ *
+ * This source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ * @File	ctmixer.c
+ *
+ * @Brief
+ * This file contains the implementation of alsa mixer device functions.
+ *
+ * @Author	Liu Chun
+ * @Date 	May 28 2008
+ *
+ */
+
+
+#include "ctmixer.h"
+#include "ctamixer.h"
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/asoundef.h>
+#include <sound/pcm.h>
+#include <linux/slab.h>
+
+enum CT_SUM_CTL {
+	SUM_IN_F,
+	SUM_IN_R,
+	SUM_IN_C,
+	SUM_IN_S,
+	SUM_IN_F_C,
+
+	NUM_CT_SUMS
+};
+
+enum CT_AMIXER_CTL {
+	/* volume control mixers */
+	AMIXER_MASTER_F,
+	AMIXER_MASTER_R,
+	AMIXER_MASTER_C,
+	AMIXER_MASTER_S,
+	AMIXER_PCM_F,
+	AMIXER_PCM_R,
+	AMIXER_PCM_C,
+	AMIXER_PCM_S,
+	AMIXER_SPDIFI,
+	AMIXER_LINEIN,
+	AMIXER_MIC,
+	AMIXER_SPDIFO,
+	AMIXER_WAVE_F,
+	AMIXER_WAVE_R,
+	AMIXER_WAVE_C,
+	AMIXER_WAVE_S,
+	AMIXER_MASTER_F_C,
+	AMIXER_PCM_F_C,
+	AMIXER_SPDIFI_C,
+	AMIXER_LINEIN_C,
+	AMIXER_MIC_C,
+
+	/* this should always be the last one */
+	NUM_CT_AMIXERS
+};
+
+enum CTALSA_MIXER_CTL {
+	/* volume control mixers */
+	MIXER_MASTER_P,
+	MIXER_PCM_P,
+	MIXER_LINEIN_P,
+	MIXER_MIC_P,
+	MIXER_SPDIFI_P,
+	MIXER_SPDIFO_P,
+	MIXER_WAVEF_P,
+	MIXER_WAVER_P,
+	MIXER_WAVEC_P,
+	MIXER_WAVES_P,
+	MIXER_MASTER_C,
+	MIXER_PCM_C,
+	MIXER_LINEIN_C,
+	MIXER_MIC_C,
+	MIXER_SPDIFI_C,
+
+	/* switch control mixers */
+	MIXER_PCM_C_S,
+	MIXER_LINEIN_C_S,
+	MIXER_MIC_C_S,
+	MIXER_SPDIFI_C_S,
+	MIXER_LINEIN_P_S,
+	MIXER_SPDIFO_P_S,
+	MIXER_SPDIFI_P_S,
+	MIXER_WAVEF_P_S,
+	MIXER_WAVER_P_S,
+	MIXER_WAVEC_P_S,
+	MIXER_WAVES_P_S,
+	MIXER_DIGITAL_IO_S,
+	MIXER_IEC958_MASK,
+	MIXER_IEC958_DEFAULT,
+	MIXER_IEC958_STREAM,
+
+	/* this should always be the last one */
+	NUM_CTALSA_MIXERS
+};
+
+#define VOL_MIXER_START		MIXER_MASTER_P
+#define VOL_MIXER_END		MIXER_SPDIFI_C
+#define VOL_MIXER_NUM		(VOL_MIXER_END - VOL_MIXER_START + 1)
+#define SWH_MIXER_START		MIXER_PCM_C_S
+#define SWH_MIXER_END		MIXER_DIGITAL_IO_S
+#define SWH_CAPTURE_START	MIXER_PCM_C_S
+#define SWH_CAPTURE_END		MIXER_SPDIFI_C_S
+
+#define CHN_NUM		2
+
+struct ct_kcontrol_init {
+	unsigned char ctl;
+	char *name;
+};
+
+static struct ct_kcontrol_init
+ct_kcontrol_init_table[NUM_CTALSA_MIXERS] = {
+	[MIXER_MASTER_P] = {
+		.ctl = 1,
+		.name = "Master Playback Volume",
+	},
+	[MIXER_MASTER_C] = {
+		.ctl = 1,
+		.name = "Master Capture Volume",
+	},
+	[MIXER_PCM_P] = {
+		.ctl = 1,
+		.name = "PCM Playback Volume",
+	},
+	[MIXER_PCM_C] = {
+		.ctl = 1,
+		.name = "PCM Capture Volume",
+	},
+	[MIXER_LINEIN_P] = {
+		.ctl = 1,
+		.name = "Line-in Playback Volume",
+	},
+	[MIXER_LINEIN_C] = {
+		.ctl = 1,
+		.name = "Line-in Capture Volume",
+	},
+	[MIXER_MIC_P] = {
+		.ctl = 1,
+		.name = "Mic Playback Volume",
+	},
+	[MIXER_MIC_C] = {
+		.ctl = 1,
+		.name = "Mic Capture Volume",
+	},
+	[MIXER_SPDIFI_P] = {
+		.ctl = 1,
+		.name = "S/PDIF-in Playback Volume",
+	},
+	[MIXER_SPDIFI_C] = {
+		.ctl = 1,
+		.name = "S/PDIF-in Capture Volume",
+	},
+	[MIXER_SPDIFO_P] = {
+		.ctl = 1,
+		.name = "S/PDIF-out Playback Volume",
+	},
+	[MIXER_WAVEF_P] = {
+		.ctl = 1,
+		.name = "Front Playback Volume",
+	},
+	[MIXER_WAVES_P] = {
+		.ctl = 1,
+		.name = "Surround Playback Volume",
+	},
+	[MIXER_WAVEC_P] = {
+		.ctl = 1,
+		.name = "Center/LFE Playback Volume",
+	},
+	[MIXER_WAVER_P] = {
+		.ctl = 1,
+		.name = "Rear Playback Volume",
+	},
+
+	[MIXER_PCM_C_S] = {
+		.ctl = 1,
+		.name = "PCM Capture Switch",
+	},
+	[MIXER_LINEIN_C_S] = {
+		.ctl = 1,
+		.name = "Line-in Capture Switch",
+	},
+	[MIXER_MIC_C_S] = {
+		.ctl = 1,
+		.name = "Mic Capture Switch",
+	},
+	[MIXER_SPDIFI_C_S] = {
+		.ctl = 1,
+		.name = "S/PDIF-in Capture Switch",
+	},
+	[MIXER_LINEIN_P_S] = {
+		.ctl = 1,
+		.name = "Line-in Playback Switch",
+	},
+	[MIXER_SPDIFO_P_S] = {
+		.ctl = 1,
+		.name = "S/PDIF-out Playback Switch",
+	},
+	[MIXER_SPDIFI_P_S] = {
+		.ctl = 1,
+		.name = "S/PDIF-in Playback Switch",
+	},
+	[MIXER_WAVEF_P_S] = {
+		.ctl = 1,
+		.name = "Front Playback Switch",
+	},
+	[MIXER_WAVES_P_S] = {
+		.ctl = 1,
+		.name = "Surround Playback Switch",
+	},
+	[MIXER_WAVEC_P_S] = {
+		.ctl = 1,
+		.name = "Center/LFE Playback Switch",
+	},
+	[MIXER_WAVER_P_S] = {
+		.ctl = 1,
+		.name = "Rear Playback Switch",
+	},
+	[MIXER_DIGITAL_IO_S] = {
+		.ctl = 0,
+		.name = "Digit-IO Playback Switch",
+	},
+};
+
+static void
+ct_mixer_recording_select(struct ct_mixer *mixer, enum CT_AMIXER_CTL type);
+
+static void
+ct_mixer_recording_unselect(struct ct_mixer *mixer, enum CT_AMIXER_CTL type);
+
+static struct snd_kcontrol *kctls[2] = {NULL};
+
+static enum CT_AMIXER_CTL get_amixer_index(enum CTALSA_MIXER_CTL alsa_index)
+{
+	switch (alsa_index) {
+	case MIXER_MASTER_P:	return AMIXER_MASTER_F;
+	case MIXER_MASTER_C:	return AMIXER_MASTER_F_C;
+	case MIXER_PCM_P:	return AMIXER_PCM_F;
+	case MIXER_PCM_C:
+	case MIXER_PCM_C_S:	return AMIXER_PCM_F_C;
+	case MIXER_LINEIN_P:	return AMIXER_LINEIN;
+	case MIXER_LINEIN_C:
+	case MIXER_LINEIN_C_S:	return AMIXER_LINEIN_C;
+	case MIXER_MIC_P:	return AMIXER_MIC;
+	case MIXER_MIC_C:
+	case MIXER_MIC_C_S:	return AMIXER_MIC_C;
+	case MIXER_SPDIFI_P:	return AMIXER_SPDIFI;
+	case MIXER_SPDIFI_C:
+	case MIXER_SPDIFI_C_S:	return AMIXER_SPDIFI_C;
+	case MIXER_SPDIFO_P:	return AMIXER_SPDIFO;
+	case MIXER_WAVEF_P:	return AMIXER_WAVE_F;
+	case MIXER_WAVES_P:	return AMIXER_WAVE_S;
+	case MIXER_WAVEC_P:	return AMIXER_WAVE_C;
+	case MIXER_WAVER_P:	return AMIXER_WAVE_R;
+	default:		return NUM_CT_AMIXERS;
+	}
+}
+
+static enum CT_AMIXER_CTL get_recording_amixer(enum CT_AMIXER_CTL index)
+{
+	switch (index) {
+	case AMIXER_MASTER_F:	return AMIXER_MASTER_F_C;
+	case AMIXER_PCM_F:	return AMIXER_PCM_F_C;
+	case AMIXER_SPDIFI:	return AMIXER_SPDIFI_C;
+	case AMIXER_LINEIN:	return AMIXER_LINEIN_C;
+	case AMIXER_MIC:	return AMIXER_MIC_C;
+	default:		return NUM_CT_AMIXERS;
+	}
+}
+
+static unsigned char
+get_switch_state(struct ct_mixer *mixer, enum CTALSA_MIXER_CTL type)
+{
+	return (mixer->switch_state & (0x1 << (type - SWH_MIXER_START)))
+		? 1 : 0;
+}
+
+static void
+set_switch_state(struct ct_mixer *mixer,
+		 enum CTALSA_MIXER_CTL type, unsigned char state)
+{
+	if (state)
+		mixer->switch_state |= (0x1 << (type - SWH_MIXER_START));
+	else
+		mixer->switch_state &= ~(0x1 << (type - SWH_MIXER_START));
+}
+
+/* Map integer value ranging from 0 to 65535 to 14-bit float value ranging
+ * from 2^-6 to (1+1023/1024) */
+static unsigned int uint16_to_float14(unsigned int x)
+{
+	unsigned int i = 0;
+
+	if (x < 17)
+		return 0;
+
+	x *= 2031;
+	x /= 65535;
+	x += 16;
+
+	/* i <= 6 */
+	for (i = 0; !(x & 0x400); i++)
+		x <<= 1;
+
+	x = (((7 - i) & 0x7) << 10) | (x & 0x3ff);
+
+	return x;
+}
+
+static unsigned int float14_to_uint16(unsigned int x)
+{
+	unsigned int e = 0;
+
+	if (!x)
+		return x;
+
+	e = (x >> 10) & 0x7;
+	x &= 0x3ff;
+	x += 1024;
+	x >>= (7 - e);
+	x -= 16;
+	x *= 65535;
+	x /= 2031;
+
+	return x;
+}
+
+static int ct_alsa_mix_volume_info(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 43690;
+	uinfo->value.integer.step = 128;
+
+	return 0;
+}
+
+static int ct_alsa_mix_volume_get(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	enum CT_AMIXER_CTL type = get_amixer_index(kcontrol->private_value);
+	struct amixer *amixer = NULL;
+	int i = 0;
+
+	for (i = 0; i < 2; i++) {
+		amixer = ((struct ct_mixer *)atc->mixer)->
+						amixers[type*CHN_NUM+i];
+		/* Convert 14-bit float-point scale to 16-bit integer volume */
+		ucontrol->value.integer.value[i] =
+		(float14_to_uint16(amixer->ops->get_scale(amixer)) & 0xffff);
+	}
+
+	return 0;
+}
+
+static int ct_alsa_mix_volume_put(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	struct ct_mixer *mixer = atc->mixer;
+	enum CT_AMIXER_CTL type = get_amixer_index(kcontrol->private_value);
+	struct amixer *amixer = NULL;
+	int i = 0, j = 0, change = 0, val = 0;
+
+	for (i = 0; i < 2; i++) {
+		/* Convert 16-bit integer volume to 14-bit float-point scale */
+		val = (ucontrol->value.integer.value[i] & 0xffff);
+		amixer = mixer->amixers[type*CHN_NUM+i];
+		if ((float14_to_uint16(amixer->ops->get_scale(amixer)) & 0xff80)
+				!= (val & 0xff80)) {
+			val = uint16_to_float14(val);
+			amixer->ops->set_scale(amixer, val);
+			amixer->ops->commit_write(amixer);
+			change = 1;
+			/* Synchronize Master/PCM playback AMIXERs. */
+			if (AMIXER_MASTER_F == type || AMIXER_PCM_F == type) {
+				for (j = 1; j < 4; j++) {
+					amixer = mixer->
+						amixers[(type+j)*CHN_NUM+i];
+					amixer->ops->set_scale(amixer, val);
+					amixer->ops->commit_write(amixer);
+				}
+			}
+		}
+	}
+
+	return change;
+}
+
+static struct snd_kcontrol_new vol_ctl = {
+	.access		= SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.iface		= SNDRV_CTL_ELEM_IFACE_MIXER,
+	.info		= ct_alsa_mix_volume_info,
+	.get		= ct_alsa_mix_volume_get,
+	.put		= ct_alsa_mix_volume_put
+};
+
+static void
+do_line_mic_switch(struct ct_atc *atc, enum CTALSA_MIXER_CTL type)
+{
+
+	if (MIXER_LINEIN_C_S == type) {
+		atc->select_line_in(atc);
+		set_switch_state(atc->mixer, MIXER_MIC_C_S, 0);
+		snd_ctl_notify(atc->card, SNDRV_CTL_EVENT_MASK_VALUE,
+							&kctls[1]->id);
+	} else if (MIXER_MIC_C_S == type) {
+		atc->select_mic_in(atc);
+		set_switch_state(atc->mixer, MIXER_LINEIN_C_S, 0);
+		snd_ctl_notify(atc->card, SNDRV_CTL_EVENT_MASK_VALUE,
+							&kctls[0]->id);
+	}
+}
+
+static void
+do_digit_io_switch(struct ct_atc *atc, int state)
+{
+	struct ct_mixer *mixer = atc->mixer;
+
+	if (state) {
+		atc->select_digit_io(atc);
+		atc->spdif_out_unmute(atc,
+				get_switch_state(mixer, MIXER_SPDIFO_P_S));
+		atc->spdif_in_unmute(atc, 1);
+		atc->line_in_unmute(atc, 0);
+		return;
+	}
+
+	if (get_switch_state(mixer, MIXER_LINEIN_C_S))
+		atc->select_line_in(atc);
+	else if (get_switch_state(mixer, MIXER_MIC_C_S))
+		atc->select_mic_in(atc);
+
+	atc->spdif_out_unmute(atc, 0);
+	atc->spdif_in_unmute(atc, 0);
+	atc->line_in_unmute(atc, 1);
+	return;
+}
+
+static int ct_alsa_mix_switch_info(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	uinfo->value.integer.step = 1;
+
+	return 0;
+}
+
+static int ct_alsa_mix_switch_get(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_mixer *mixer =
+		((struct ct_atc *)snd_kcontrol_chip(kcontrol))->mixer;
+	enum CTALSA_MIXER_CTL type = kcontrol->private_value;
+
+	ucontrol->value.integer.value[0] = get_switch_state(mixer, type);
+	return 0;
+}
+
+static int ct_alsa_mix_switch_put(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	struct ct_mixer *mixer = atc->mixer;
+	enum CTALSA_MIXER_CTL type = kcontrol->private_value;
+	int state = 0;
+
+	state = ucontrol->value.integer.value[0];
+	if (get_switch_state(mixer, type) == state)
+		return 0;
+
+	set_switch_state(mixer, type, state);
+	/* Do changes in mixer. */
+	if ((SWH_CAPTURE_START <= type) && (SWH_CAPTURE_END >= type)) {
+		if (state) {
+			ct_mixer_recording_select(mixer,
+						  get_amixer_index(type));
+		} else {
+			ct_mixer_recording_unselect(mixer,
+						    get_amixer_index(type));
+		}
+	}
+	/* Do changes out of mixer. */
+	if (state && (MIXER_LINEIN_C_S == type || MIXER_MIC_C_S == type))
+		do_line_mic_switch(atc, type);
+	else if (MIXER_WAVEF_P_S == type)
+		atc->line_front_unmute(atc, state);
+	else if (MIXER_WAVES_P_S == type)
+		atc->line_surround_unmute(atc, state);
+	else if (MIXER_WAVEC_P_S == type)
+		atc->line_clfe_unmute(atc, state);
+	else if (MIXER_WAVER_P_S == type)
+		atc->line_rear_unmute(atc, state);
+	else if (MIXER_LINEIN_P_S == type)
+		atc->line_in_unmute(atc, state);
+	else if (MIXER_SPDIFO_P_S == type)
+		atc->spdif_out_unmute(atc, state);
+	else if (MIXER_SPDIFI_P_S == type)
+		atc->spdif_in_unmute(atc, state);
+	else if (MIXER_DIGITAL_IO_S == type)
+		do_digit_io_switch(atc, state);
+
+	return 1;
+}
+
+static struct snd_kcontrol_new swh_ctl = {
+	.access		= SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.iface		= SNDRV_CTL_ELEM_IFACE_MIXER,
+	.info		= ct_alsa_mix_switch_info,
+	.get		= ct_alsa_mix_switch_get,
+	.put		= ct_alsa_mix_switch_put
+};
+
+static int ct_spdif_info(struct snd_kcontrol *kcontrol,
+			 struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int ct_spdif_get_mask(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.iec958.status[0] = 0xff;
+	ucontrol->value.iec958.status[1] = 0xff;
+	ucontrol->value.iec958.status[2] = 0xff;
+	ucontrol->value.iec958.status[3] = 0xff;
+	return 0;
+}
+
+static int ct_spdif_default_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	unsigned int status = SNDRV_PCM_DEFAULT_CON_SPDIF;
+
+	ucontrol->value.iec958.status[0] = (status >> 0) & 0xff;
+	ucontrol->value.iec958.status[1] = (status >> 8) & 0xff;
+	ucontrol->value.iec958.status[2] = (status >> 16) & 0xff;
+	ucontrol->value.iec958.status[3] = (status >> 24) & 0xff;
+
+	return 0;
+}
+
+static int ct_spdif_get(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	unsigned int status = 0;
+
+	atc->spdif_out_get_status(atc, &status);
+	ucontrol->value.iec958.status[0] = (status >> 0) & 0xff;
+	ucontrol->value.iec958.status[1] = (status >> 8) & 0xff;
+	ucontrol->value.iec958.status[2] = (status >> 16) & 0xff;
+	ucontrol->value.iec958.status[3] = (status >> 24) & 0xff;
+
+	return 0;
+}
+
+static int ct_spdif_put(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct ct_atc *atc = snd_kcontrol_chip(kcontrol);
+	int change = 1;
+	unsigned int status = 0, old_status = 0;
+
+	status = (ucontrol->value.iec958.status[0] << 0) |
+		 (ucontrol->value.iec958.status[1] << 8) |
+		 (ucontrol->value.iec958.status[2] << 16) |
+		 (ucontrol->value.iec958.status[3] << 24);
+
+	atc->spdif_out_get_status(atc, &old_status);
+	change = (old_status != status);
+	if (change)
+		atc->spdif_out_set_status(atc, status);
+
+	return change;
+}
+
+static struct snd_kcontrol_new iec958_mask_ctl = {
+	.access		= SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface		= SNDRV_CTL_ELEM_IFACE_PCM,
+	.name		= SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
+	.count		= 1,
+	.info		= ct_spdif_info,
+	.get		= ct_spdif_get_mask,
+	.private_value	= MIXER_IEC958_MASK
+};
+
+static struct snd_kcontrol_new iec958_default_ctl = {
+	.iface		= SNDRV_CTL_ELEM_IFACE_PCM,
+	.name		= SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+	.count		= 1,
+	.info		= ct_spdif_info,
+	.get		= ct_spdif_default_get,
+	.put		= ct_spdif_put,
+	.private_value	= MIXER_IEC958_DEFAULT
+};
+
+static struct snd_kcontrol_new iec958_ctl = {
+	.access		= SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.iface		= SNDRV_CTL_ELEM_IFACE_PCM,
+	.name		= SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
+	.count		= 1,
+	.info		= ct_spdif_info,
+	.get		= ct_spdif_get,
+	.put		= ct_spdif_put,
+	.private_value	= MIXER_IEC958_STREAM
+};
+
+#define NUM_IEC958_CTL 3
+
+static int
+ct_mixer_kcontrol_new(struct ct_mixer *mixer, struct snd_kcontrol_new *new)
+{
+	struct snd_kcontrol *kctl = NULL;
+	int err = 0;
+
+	kctl = snd_ctl_new1(new, mixer->atc);
+	if (NULL == kctl)
+		return -ENOMEM;
+
+	if (SNDRV_CTL_ELEM_IFACE_PCM == kctl->id.iface)
+		kctl->id.device = IEC958;
+
+	err = snd_ctl_add(mixer->atc->card, kctl);
+	if (err)
+		return err;
+
+	switch (new->private_value) {
+	case MIXER_LINEIN_C_S:
+		kctls[0] = kctl; break;
+	case MIXER_MIC_C_S:
+		kctls[1] = kctl; break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int ct_mixer_kcontrols_create(struct ct_mixer *mixer)
+{
+	enum CTALSA_MIXER_CTL type = 0;
+	struct ct_atc *atc = mixer->atc;
+	int err = 0;
+
+	/* Create snd kcontrol instances on demand */
+	for (type = VOL_MIXER_START; type <= VOL_MIXER_END; type++) {
+		if (ct_kcontrol_init_table[type].ctl) {
+			vol_ctl.name = ct_kcontrol_init_table[type].name;
+			vol_ctl.private_value = (unsigned long)type;
+			err = ct_mixer_kcontrol_new(mixer, &vol_ctl);
+			if (err)
+				return err;
+		}
+	}
+
+	ct_kcontrol_init_table[MIXER_DIGITAL_IO_S].ctl =
+					atc->have_digit_io_switch(atc);
+	for (type = SWH_MIXER_START; type <= SWH_MIXER_END; type++) {
+		if (ct_kcontrol_init_table[type].ctl) {
+			swh_ctl.name = ct_kcontrol_init_table[type].name;
+			swh_ctl.private_value = (unsigned long)type;
+			err = ct_mixer_kcontrol_new(mixer, &swh_ctl);
+			if (err)
+				return err;
+		}
+	}
+
+	err = ct_mixer_kcontrol_new(mixer, &iec958_mask_ctl);
+	if (err)
+		return err;
+
+	err = ct_mixer_kcontrol_new(mixer, &iec958_default_ctl);
+	if (err)
+		return err;
+
+	err = ct_mixer_kcontrol_new(mixer, &iec958_ctl);
+	if (err)
+		return err;
+
+	atc->line_front_unmute(atc, 1);
+	set_switch_state(mixer, MIXER_WAVEF_P_S, 1);
+	atc->line_surround_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_WAVES_P_S, 0);
+	atc->line_clfe_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_WAVEC_P_S, 0);
+	atc->line_rear_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_WAVER_P_S, 0);
+	atc->spdif_out_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_SPDIFO_P_S, 0);
+	atc->line_in_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_LINEIN_P_S, 0);
+	atc->spdif_in_unmute(atc, 0);
+	set_switch_state(mixer, MIXER_SPDIFI_P_S, 0);
+
+	set_switch_state(mixer, MIXER_PCM_C_S, 1);
+	set_switch_state(mixer, MIXER_LINEIN_C_S, 1);
+	set_switch_state(mixer, MIXER_SPDIFI_C_S, 1);
+
+	return 0;
+}
+
+static void
+ct_mixer_recording_select(struct ct_mixer *mixer, enum CT_AMIXER_CTL type)
+{
+	struct amixer *amix_d = NULL;
+	struct sum *sum_c = NULL;
+	int i = 0;
+
+	for (i = 0; i < 2; i++) {
+		amix_d = mixer->amixers[type*CHN_NUM+i];
+		sum_c = mixer->sums[SUM_IN_F_C*CHN_NUM+i];
+		amix_d->ops->set_sum(amix_d, sum_c);
+		amix_d->ops->commit_write(amix_d);
+	}
+}
+
+static void
+ct_mixer_recording_unselect(struct ct_mixer *mixer, enum CT_AMIXER_CTL type)
+{
+	struct amixer *amix_d = NULL;
+	int i = 0;
+
+	for (i = 0; i < 2; i++) {
+		amix_d = mixer->amixers[type*CHN_NUM+i];
+		amix_d->ops->set_sum(amix_d, NULL);
+		amix_d->ops->commit_write(amix_d);
+	}
+}
+
+static int ct_mixer_get_resources(struct ct_mixer *mixer)
+{
+	struct sum_mgr *sum_mgr = NULL;
+	struct sum *sum = NULL;
+	struct sum_desc sum_desc = {0};
+	struct amixer_mgr *amixer_mgr = NULL;
+	struct amixer *amixer = NULL;
+	struct amixer_desc am_desc = {0};
+	int err = 0;
+	int i = 0;
+
+	/* Allocate sum resources for mixer obj */
+	sum_mgr = (struct sum_mgr *)mixer->atc->rsc_mgrs[SUM];
+	sum_desc.msr = mixer->atc->msr;
+	for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
+		err = sum_mgr->get_sum(sum_mgr, &sum_desc, &sum);
+		if (err) {
+			printk(KERN_ERR "Failed to get sum resources for "
+					  "front output!\n");
+			break;
+		}
+		mixer->sums[i] = sum;
+	}
+	if (err)
+		goto error1;
+
+	/* Allocate amixer resources for mixer obj */
+	amixer_mgr = (struct amixer_mgr *)mixer->atc->rsc_mgrs[AMIXER];
+	am_desc.msr = mixer->atc->msr;
+	for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
+		err = amixer_mgr->get_amixer(amixer_mgr, &am_desc, &amixer);
+		if (err) {
+			printk(KERN_ERR "Failed to get amixer resources for "
+					  "mixer obj!\n");
+			break;
+		}
+		mixer->amixers[i] = amixer;
+	}
+	if (err)
+		goto error2;
+
+	return 0;
+
+error2:
+	for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
+		if (NULL != mixer->amixers[i]) {
+			amixer = mixer->amixers[i];
+			amixer_mgr->put_amixer(amixer_mgr, amixer);
+			mixer->amixers[i] = NULL;
+		}
+	}
+error1:
+	for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
+		if (NULL != mixer->sums[i]) {
+			sum_mgr->put_sum(sum_mgr, (struct sum *)mixer->sums[i]);
+			mixer->sums[i] = NULL;
+		}
+	}
+
+	return err;
+}
+
+static int ct_mixer_get_mem(struct ct_mixer **rmixer)
+{
+	struct ct_mixer *mixer = NULL;
+	int err = 0;
+
+	*rmixer = NULL;
+	/* Allocate mem for mixer obj */
+	mixer = kzalloc(sizeof(*mixer), GFP_KERNEL);
+	if (NULL == mixer)
+		return -ENOMEM;
+
+	mixer->amixers = kzalloc(sizeof(void *)*(NUM_CT_AMIXERS*CHN_NUM),
+				 GFP_KERNEL);
+	if (NULL == mixer->amixers) {
+		err = -ENOMEM;
+		goto error1;
+	}
+	mixer->sums = kzalloc(sizeof(void *)*(NUM_CT_SUMS*CHN_NUM), GFP_KERNEL);
+	if (NULL == mixer->sums) {
+		err = -ENOMEM;
+		goto error2;
+	}
+
+	*rmixer = mixer;
+	return 0;
+
+error2:
+	kfree(mixer->amixers);
+error1:
+	kfree(mixer);
+	return err;
+}
+
+static int ct_mixer_topology_build(struct ct_mixer *mixer)
+{
+	struct sum *sum = NULL;
+	struct amixer *amix_d = NULL, *amix_s = NULL;
+	enum CT_AMIXER_CTL i = 0, j = 0;
+
+	/* Build topology from destination to source */
+
+	/* Set up Master mixer */
+	for (i = AMIXER_MASTER_F, j = SUM_IN_F;
+					i <= AMIXER_MASTER_S; i++, j++) {
+		amix_d = mixer->amixers[i*CHN_NUM];
+		sum = mixer->sums[j*CHN_NUM];
+		amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+		amix_d = mixer->amixers[i*CHN_NUM+1];
+		sum = mixer->sums[j*CHN_NUM+1];
+		amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+	}
+
+	/* Set up Wave-out mixer */
+	for (i = AMIXER_WAVE_F, j = AMIXER_MASTER_F;
+					i <= AMIXER_WAVE_S; i++, j++) {
+		amix_d = mixer->amixers[i*CHN_NUM];
+		amix_s = mixer->amixers[j*CHN_NUM];
+		amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+		amix_d = mixer->amixers[i*CHN_NUM+1];
+		amix_s = mixer->amixers[j*CHN_NUM+1];
+		amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+	}
+
+	/* Set up S/PDIF-out mixer */
+	amix_d = mixer->amixers[AMIXER_SPDIFO*CHN_NUM];
+	amix_s = mixer->amixers[AMIXER_MASTER_F*CHN_NUM];
+	amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+	amix_d = mixer->amixers[AMIXER_SPDIFO*CHN_NUM+1];
+	amix_s = mixer->amixers[AMIXER_MASTER_F*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, &amix_s->rsc, INIT_VOL, NULL);
+
+	/* Set up PCM-in mixer */
+	for (i = AMIXER_PCM_F, j = SUM_IN_F; i <= AMIXER_PCM_S; i++, j++) {
+		amix_d = mixer->amixers[i*CHN_NUM];
+		sum = mixer->sums[j*CHN_NUM];
+		amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+		amix_d = mixer->amixers[i*CHN_NUM+1];
+		sum = mixer->sums[j*CHN_NUM+1];
+		amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	}
+
+	/* Set up Line-in mixer */
+	amix_d = mixer->amixers[AMIXER_LINEIN*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_LINEIN*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up Mic-in mixer */
+	amix_d = mixer->amixers[AMIXER_MIC*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_MIC*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up S/PDIF-in mixer */
+	amix_d = mixer->amixers[AMIXER_SPDIFI*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_SPDIFI*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up Master recording mixer */
+	amix_d = mixer->amixers[AMIXER_MASTER_F_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+	amix_d = mixer->amixers[AMIXER_MASTER_F_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, &sum->rsc, INIT_VOL, NULL);
+
+	/* Set up PCM-in recording mixer */
+	amix_d = mixer->amixers[AMIXER_PCM_F_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_PCM_F_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up Line-in recording mixer */
+	amix_d = mixer->amixers[AMIXER_LINEIN_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_LINEIN_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up Mic-in recording mixer */
+	amix_d = mixer->amixers[AMIXER_MIC_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_MIC_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	/* Set up S/PDIF-in recording mixer */
+	amix_d = mixer->amixers[AMIXER_SPDIFI_C*CHN_NUM];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+	amix_d = mixer->amixers[AMIXER_SPDIFI_C*CHN_NUM+1];
+	sum = mixer->sums[SUM_IN_F_C*CHN_NUM+1];
+	amix_d->ops->setup(amix_d, NULL, INIT_VOL, sum);
+
+	return 0;
+}
+
+static int mixer_set_input_port(struct amixer *amixer, struct rsc *rsc)
+{
+	amixer->ops->set_input(amixer, rsc);
+	amixer->ops->commit_write(amixer);
+
+	return 0;
+}
+
+static enum CT_AMIXER_CTL port_to_amixer(enum MIXER_PORT_T type)
+{
+	switch (type) {
+	case MIX_WAVE_FRONT:	return AMIXER_WAVE_F;
+	case MIX_WAVE_SURROUND:	return AMIXER_WAVE_S;
+	case MIX_WAVE_CENTLFE:	return AMIXER_WAVE_C;
+	case MIX_WAVE_REAR:	return AMIXER_WAVE_R;
+	case MIX_PCMO_FRONT:	return AMIXER_MASTER_F_C;
+	case MIX_SPDIF_OUT:	return AMIXER_SPDIFO;
+	case MIX_LINE_IN:	return AMIXER_LINEIN;
+	case MIX_MIC_IN:	return AMIXER_MIC;
+	case MIX_SPDIF_IN:	return AMIXER_SPDIFI;
+	case MIX_PCMI_FRONT:	return AMIXER_PCM_F;
+	case MIX_PCMI_SURROUND:	return AMIXER_PCM_S;
+	case MIX_PCMI_CENTLFE:	return AMIXER_PCM_C;
+	case MIX_PCMI_REAR:	return AMIXER_PCM_R;
+	default: 		return 0;
+	}
+}
+
+static int mixer_get_output_ports(struct ct_mixer *mixer,
+				  enum MIXER_PORT_T type,
+				  struct rsc **rleft, struct rsc **rright)
+{
+	enum CT_AMIXER_CTL amix = port_to_amixer(type);
+
+	if (NULL != rleft)
+		*rleft = &((struct amixer *)mixer->amixers[amix*CHN_NUM])->rsc;
+
+	if (NULL != rright)
+		*rright =
+			&((struct amixer *)mixer->amixers[amix*CHN_NUM+1])->rsc;
+
+	return 0;
+}
+
+static int mixer_set_input_left(struct ct_mixer *mixer,
+				enum MIXER_PORT_T type, struct rsc *rsc)
+{
+	enum CT_AMIXER_CTL amix = port_to_amixer(type);
+
+	mixer_set_input_port(mixer->amixers[amix*CHN_NUM], rsc);
+	amix = get_recording_amixer(amix);
+	if (amix < NUM_CT_AMIXERS)
+		mixer_set_input_port(mixer->amixers[amix*CHN_NUM], rsc);
+
+	return 0;
+}
+
+static int
+mixer_set_input_right(struct ct_mixer *mixer,
+		      enum MIXER_PORT_T type, struct rsc *rsc)
+{
+	enum CT_AMIXER_CTL amix = port_to_amixer(type);
+
+	mixer_set_input_port(mixer->amixers[amix*CHN_NUM+1], rsc);
+	amix = get_recording_amixer(amix);
+	if (amix < NUM_CT_AMIXERS)
+		mixer_set_input_port(mixer->amixers[amix*CHN_NUM+1], rsc);
+
+	return 0;
+}
+
+int ct_mixer_destroy(struct ct_mixer *mixer)
+{
+	struct sum_mgr *sum_mgr = (struct sum_mgr *)mixer->atc->rsc_mgrs[SUM];
+	struct amixer_mgr *amixer_mgr =
+			(struct amixer_mgr *)mixer->atc->rsc_mgrs[AMIXER];
+	struct amixer *amixer = NULL;
+	int i = 0;
+
+	/* Release amixer resources */
+	for (i = 0; i < (NUM_CT_AMIXERS * CHN_NUM); i++) {
+		if (NULL != mixer->amixers[i]) {
+			amixer = mixer->amixers[i];
+			amixer_mgr->put_amixer(amixer_mgr, amixer);
+		}
+	}
+
+	/* Release sum resources */
+	for (i = 0; i < (NUM_CT_SUMS * CHN_NUM); i++) {
+		if (NULL != mixer->sums[i])
+			sum_mgr->put_sum(sum_mgr, (struct sum *)mixer->sums[i]);
+	}
+
+	/* Release mem assigned to mixer object */
+	kfree(mixer->sums);
+	kfree(mixer->amixers);
+	kfree(mixer);
+
+	return 0;
+}
+
+int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer)
+{
+	struct ct_mixer *mixer = NULL;
+	int err = 0;
+
+	*rmixer = NULL;
+
+	/* Allocate mem for mixer obj */
+	err = ct_mixer_get_mem(&mixer);
+	if (err)
+		return err;
+
+	mixer->switch_state = 0;
+	mixer->atc = atc;
+	/* Set operations */
+	mixer->get_output_ports = mixer_get_output_ports;
+	mixer->set_input_left = mixer_set_input_left;
+	mixer->set_input_right = mixer_set_input_right;
+
+	/* Allocate chip resources for mixer obj */
+	err = ct_mixer_get_resources(mixer);
+	if (err)
+		goto error;
+
+	/* Build internal mixer topology */
+	ct_mixer_topology_build(mixer);
+
+	*rmixer = mixer;
+
+	return 0;
+
+error:
+	ct_mixer_destroy(mixer);
+	return err;
+}
+
+int ct_alsa_mix_create(struct ct_atc *atc,
+		       enum CTALSADEVS device,
+		       const char *device_name)
+{
+	int err = 0;
+
+	/* Create snd kcontrol instances on demand */
+	vol_ctl.device = swh_ctl.device = device;
+	err = ct_mixer_kcontrols_create((struct ct_mixer *)atc->mixer);
+	if (err)
+		return err;
+
+	strcpy(atc->card->mixername, device_name);
+
+	return 0;
+}