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-rw-r--r--sound/arm/mxc-alsa-mixer.c411
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diff --git a/sound/arm/mxc-alsa-mixer.c b/sound/arm/mxc-alsa-mixer.c
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+/*
+ * Copyright 2004-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+ /*!
+ * @file mxc-alsa-mixer.c
+ * @brief this file implements the mxc sound driver mixer interface for ALSA.
+ * The mxc sound driver supports mono/stereo recording (there are
+ * some limitations due to hardware), mono/stereo playback and
+ * audio mixing. This file implements output switching, volume/balance controls
+ * mono adder config, I/P dev switching and gain on the PCM streams.
+ * Recording supports 8000 khz and 16000 khz sample rate.
+ * Playback supports 8000, 11025, 16000, 22050, 24000, 32000,
+ * 44100 and 48000 khz for mono and stereo.
+ *
+ * @ingroup SOUND_DRV
+ */
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/initval.h>
+#include <linux/soundcard.h>
+#include <mach/pmic_audio.h>
+#include "mxc-alsa-common.h"
+/*!
+ * These are the functions implemented in the ALSA PCM driver that
+ * are used for mixer operations
+ *
+ */
+
+/*!
+ * These are the callback functions for mixer controls
+ *
+ */
+/* Output device control*/
+static int pmic_mixer_output_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 15;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+static int pmic_mixer_output_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int dev, i;
+ dev = uvalue->value.integer.value[0];
+ for (i = OP_EARPIECE; i < OP_MAXDEV; i++) {
+ if (dev & (1 << i)) {
+ set_mixer_output_device(NULL, MIXER_OUT, i, 1);
+ } else {
+ set_mixer_output_device(NULL, MIXER_OUT, i, 0);
+ }
+ }
+ return 0;
+}
+static int pmic_mixer_output_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int val, ret = 0, i = 0;
+ for (i = OP_EARPIECE; i < OP_MAXDEV; i++) {
+ val = get_mixer_output_device();
+ if (val & SOUND_MASK_PHONEOUT)
+ ret = ret | 1;
+ if (val & SOUND_MASK_SPEAKER)
+ ret = ret | 2;
+ if (val & SOUND_MASK_VOLUME)
+ ret = ret | 4;
+ if (val & SOUND_MASK_PCM)
+ ret = ret | 8;
+ uvalue->value.integer.value[0] = ret;
+ }
+ return 0;
+
+}
+
+/* Input gain control*/
+static int pmic_cap_volume_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 100;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+static int pmic_cap_volume_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int val;
+ val = get_mixer_input_gain();
+ val = val & 0xFF;
+ uvalue->value.integer.value[0] = val;
+ return 0;
+}
+
+static int pmic_cap_volume_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+
+ int vol;
+ vol = uvalue->value.integer.value[0];
+ vol = vol | (vol << 8);
+ set_mixer_input_gain(NULL, vol);
+ return 0;
+}
+
+/* Mono adder control*/
+static int pmic_pb_monoconfig_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 3;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+static int pmic_pb_monoconfig_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int mono;
+ mono = uvalue->value.integer.value[0];
+ set_mixer_output_mono_adder(mono);
+ return 0;
+}
+static int pmic_pb_monoconfig_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ uvalue->value.integer.value[0] = get_mixer_output_mono_adder();
+ return 0;
+}
+
+/*!
+ * These are the ALSA control structures with init values
+ *
+ */
+
+/* Input device control*/
+static int pmic_cap_input_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 7;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+static int pmic_cap_input_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int dev, i;
+ dev = uvalue->value.integer.value[0];
+ for (i = IP_HANDSET; i < IP_MAXDEV; i++) {
+ dev &= (1 << i);
+ if (dev) {
+ set_mixer_input_device(NULL, i, 1);
+ } else {
+ set_mixer_input_device(NULL, i, 0);
+ }
+ }
+ return 0;
+}
+static int pmic_cap_input_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int val, ret = 0, i = 0;
+ for (i = IP_HANDSET; i < IP_MAXDEV; i++) {
+ val = get_mixer_input_device();
+ if (val & SOUND_MASK_PHONEIN)
+ ret = ret | 1;
+ if (val & SOUND_MASK_MIC)
+ ret = ret | 2;
+ if (val & SOUND_MASK_LINE)
+ ret = ret | 4;
+ uvalue->value.integer.value[0] = ret;
+ }
+ return 0;
+}
+
+/* Volume control*/
+static int pmic_pb_volume_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int volume;
+ volume = uvalue->value.integer.value[0];
+ volume = volume | (volume << 8);
+ set_mixer_output_volume(NULL, volume, OP_NODEV);
+ return 0;
+}
+static int pmic_pb_volume_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 1;
+ uinfo->value.integer.max = 100;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+
+static int pmic_pb_volume_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int val;
+ val = get_mixer_output_volume();
+ val = val & 0xFF;
+ uvalue->value.integer.value[0] = val;
+ return 0;
+}
+
+/* Balance control start */
+static int pmic_pb_balance_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 100;
+ uinfo->value.integer.step = 1;
+ return 0;
+}
+
+static int pmic_pb_balance_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ uvalue->value.integer.value[0] = get_mixer_output_balance();
+ return 0;
+
+}
+static int pmic_pb_balance_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int bal;
+ bal = uvalue->value.integer.value[0];
+ set_mixer_output_balance(bal);
+ return 0;
+}
+
+/* Balance control end */
+
+/* loopback control start */
+static int pmic_loopback_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;
+ return 0;
+}
+
+static int pmic_loopback_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ uvalue->value.integer.value[0] = kcontrol->private_value;
+ return 0;
+
+}
+static int pmic_loopback_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *uvalue)
+{
+ int changed;
+ long flag = uvalue->value.integer.value[0];
+ changed =
+ (uvalue->value.integer.value[0] == kcontrol->private_value) ? 0 : 1;
+ kcontrol->private_value = uvalue->value.integer.value[0];
+ if (flag)
+ pmic_audio_fm_output_enable(true);
+ else
+ pmic_audio_fm_output_enable(false);
+
+ return changed;
+}
+
+/* Loopback control end */
+
+/* Kcontrol structure definitions */
+struct snd_kcontrol_new pmic_control_pb_vol __devinitdata = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Master Playback Volume",
+ .index = 0x00,
+ .info = pmic_pb_volume_info,
+ .get = pmic_pb_volume_get,
+ .put = pmic_pb_volume_put,
+ .private_value = 0xffab1,
+};
+
+struct snd_kcontrol_new pmic_control_pb_bal __devinitdata = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Master Balance Playback Volume",
+ .index = 0x00,
+ .info = pmic_pb_balance_info,
+ .get = pmic_pb_balance_get,
+ .put = pmic_pb_balance_put,
+ .private_value = 0xffab2,
+};
+struct snd_kcontrol_new pmic_control_pb_monoconfig __devinitdata = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Master Monoconfig Playback Volume",
+ .index = 0x00,
+ .info = pmic_pb_monoconfig_info,
+ .get = pmic_pb_monoconfig_get,
+ .put = pmic_pb_monoconfig_put,
+ .private_value = 0xffab2,
+};
+struct snd_kcontrol_new pmic_control_op_sw __devinitdata = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Master Output Playback Volume",
+ .index = 0x00,
+ .info = pmic_mixer_output_info,
+ .get = pmic_mixer_output_get,
+ .put = pmic_mixer_output_put,
+ .private_value = 0xffab4,
+};
+
+struct snd_kcontrol_new pmic_control_cap_vol __devinitdata = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Master Capture Volume",
+ .index = 0x00,
+ .info = pmic_cap_volume_info,
+ .get = pmic_cap_volume_get,
+ .put = pmic_cap_volume_put,
+ .private_value = 0xffab5,
+};
+struct snd_kcontrol_new pmic_control_ip_sw __devinitdata = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Master Input Capture Volume",
+ .index = 0x00,
+ .info = pmic_cap_input_info,
+ .get = pmic_cap_input_get,
+ .put = pmic_cap_input_put,
+ .private_value = 0xffab5,
+};
+
+struct snd_kcontrol_new pmic_control_loop_out __devinitdata = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Loopback Line-in",
+ .index = 0x00,
+ .info = pmic_loopback_info,
+ .get = pmic_loopback_get,
+ .put = pmic_loopback_put,
+ .private_value = 0,
+};
+
+/*!
+ * This function registers the control components of ALSA Mixer
+ * It is called by ALSA PCM init.
+ *
+ * @param card pointer to the ALSA sound card structure.
+ *
+ * @return 0 on success, -ve otherwise.
+ */
+int __devinit mxc_alsa_create_ctl(struct snd_card *card, void *p_value)
+{
+ int err = 0;
+
+ err = snd_ctl_add(card, snd_ctl_new1(&pmic_control_op_sw, p_value));
+ if (err < 0)
+ return err;
+
+ err = snd_ctl_add(card, snd_ctl_new1(&pmic_control_pb_vol, p_value));
+ if (err < 0)
+ return err;
+
+ err = snd_ctl_add(card, snd_ctl_new1(&pmic_control_pb_monoconfig, p_value));
+ if (err < 0)
+ return err;
+
+ err = snd_ctl_add(card, snd_ctl_new1(&pmic_control_pb_bal, p_value));
+ if (err < 0)
+ return err;
+
+ err = snd_ctl_add(card, snd_ctl_new1(&pmic_control_cap_vol, p_value));
+ if (err < 0)
+ return err;
+
+ err = snd_ctl_add(card, snd_ctl_new1(&pmic_control_ip_sw, p_value));
+ if (err < 0)
+ return err;
+
+ err = snd_ctl_add(card, snd_ctl_new1(&pmic_control_loop_out, p_value));
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+EXPORT_SYMBOL(mxc_alsa_create_ctl);
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