hal: Support for fm audio features
Added support for fm audio feature and hal single
instance fix
Change-Id: I189fd089b45a7e268e0af4ba4ef3eefd22a3f2ff
diff --git a/hal/Android.mk b/hal/Android.mk
index 649f6fe..9cb9817 100644
--- a/hal/Android.mk
+++ b/hal/Android.mk
@@ -29,6 +29,11 @@
LOCAL_CFLAGS += -DAFE_PROXY_ENABLED
endif
+ifneq ($(strip $(AUDIO_FEATURE_DISABLED_FM)),true)
+ LOCAL_CFLAGS += -DFM_ENABLED
+ LOCAL_SRC_FILES += audio_extn/fm.c
+endif
+
LOCAL_SHARED_LIBRARIES := \
liblog \
libcutils \
diff --git a/hal/audio_extn/audio_extn.c b/hal/audio_extn/audio_extn.c
index 610e0d1..b10a5e9 100644
--- a/hal/audio_extn/audio_extn.c
+++ b/hal/audio_extn/audio_extn.c
@@ -44,6 +44,12 @@
#define AUDIO_PARAMETER_KEY_ANC "anc_enabled"
#define AUDIO_PARAMETER_KEY_WFD "wfd_channel_cap"
#define AUDIO_PARAMETER_CAN_OPEN_PROXY "can_open_proxy"
+#ifndef FM_ENABLED
+#define audio_extn_fm_set_parameters(adev, parms) (0)
+#else
+void audio_extn_fm_set_parameters(struct audio_device *adev,
+ struct str_parms *parms);
+#endif
#ifndef ANC_HEADSET_ENABLED
#define audio_extn_set_anc_parameters(parms) (0)
@@ -180,6 +186,7 @@
{
audio_extn_set_anc_parameters(parms);
audio_extn_set_afe_proxy_parameters(parms);
+ audio_extn_fm_set_parameters(adev, parms);
}
char* audio_extn_get_parameters(const struct audio_hw_device *dev,
diff --git a/hal/audio_extn/fm.c b/hal/audio_extn/fm.c
new file mode 100644
index 0000000..53499b9
--- /dev/null
+++ b/hal/audio_extn/fm.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ * Not a Contribution.
+ *
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "audio_hw_fm"
+/*#define LOG_NDEBUG 0*/
+#define LOG_NDDEBUG 0
+
+#include <errno.h>
+#include <math.h>
+#include <cutils/log.h>
+
+#include "audio_hw.h"
+#include "platform.h"
+#include "platform_api.h"
+#include <stdlib.h>
+#include <cutils/str_parms.h>
+
+#ifdef FM_ENABLED
+#define AUDIO_PARAMETER_KEY_HANDLE_FM "handle_fm"
+#define AUDIO_PARAMETER_KEY_FM_VOLUME "fm_volume"
+
+static struct pcm_config pcm_config_fm = {
+ .channels = 2,
+ .rate = 48000,
+ .period_size = 256,
+ .period_count = 4,
+ .format = PCM_FORMAT_S16_LE,
+ .start_threshold = 0,
+ .stop_threshold = INT_MAX,
+ .avail_min = 0,
+};
+
+struct fm_module {
+ struct pcm *fm_pcm_rx;
+ struct pcm *fm_pcm_tx;
+ bool is_fm_running;
+ int fm_volume;
+};
+
+static struct fm_module fmmod = {
+ .fm_pcm_rx = NULL,
+ .fm_pcm_tx = NULL,
+ .fm_volume = 0,
+ .is_fm_running = 0,
+};
+
+static int32_t fm_set_volume(struct audio_device *adev, float value)
+{
+ int32_t vol, ret = 0;
+ struct mixer_ctl *ctl;
+ const char *mixer_ctl_name = "Internal FM RX Volume";
+
+ ALOGD("%s: entry", __func__);
+ ALOGD("%s: (%f)\n", __func__, value);
+
+ if (value < 0.0) {
+ ALOGW("%s: (%f) Under 0.0, assuming 0.0\n", __func__, value);
+ value = 0.0;
+ } else if (value > 1.0) {
+ ALOGW("%s: (%f) Over 1.0, assuming 1.0\n", __func__, value);
+ value = 1.0;
+ }
+ vol = lrint((value * 0x2000) + 0.5);
+
+ fmmod.fm_volume = vol;
+
+ if (!fmmod.is_fm_running) {
+ ALOGV("%s: FM not active, ignoring set_fm_volume call", __func__);
+ return -EIO;
+ }
+
+ ALOGD("%s: Setting FM volume to %d \n", __func__, vol);
+ ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+ if (!ctl) {
+ ALOGE("%s: Could not get ctl for mixer cmd - %s",
+ __func__, mixer_ctl_name);
+ return -EINVAL;
+ }
+ mixer_ctl_set_value(ctl, 0, fmmod.fm_volume);
+
+ ALOGD("%s: exit", __func__);
+ return ret;
+}
+
+static int32_t fm_stop(struct audio_device *adev)
+{
+ int32_t i, ret = 0;
+ struct audio_usecase *uc_info;
+
+ ALOGD("%s: enter", __func__);
+ fmmod.is_fm_running = false;
+
+ /* 1. Close the PCM devices */
+ if (fmmod.fm_pcm_rx) {
+ pcm_close(fmmod.fm_pcm_rx);
+ fmmod.fm_pcm_rx = NULL;
+ }
+ if (fmmod.fm_pcm_tx) {
+ pcm_close(fmmod.fm_pcm_tx);
+ fmmod.fm_pcm_tx = NULL;
+ }
+
+ uc_info = get_usecase_from_list(adev, USECASE_AUDIO_PLAYBACK_FM);
+ if (uc_info == NULL) {
+ ALOGE("%s: Could not find the usecase (%d) in the list",
+ __func__, USECASE_VOICE_CALL);
+ return -EINVAL;
+ }
+
+ /* 2. Get and set stream specific mixer controls */
+ disable_audio_route(adev, uc_info, true);
+
+ /* 3. Disable the rx and tx devices */
+ disable_snd_device(adev, uc_info->out_snd_device, false);
+ disable_snd_device(adev, uc_info->in_snd_device, true);
+
+ list_remove(&uc_info->list);
+ free(uc_info);
+
+ ALOGD("%s: exit: status(%d)", __func__, ret);
+ return ret;
+}
+
+static int32_t fm_start(struct audio_device *adev)
+{
+ int32_t i, ret = 0;
+ struct audio_usecase *uc_info;
+ int32_t pcm_dev_rx_id, pcm_dev_tx_id;
+
+ ALOGD("%s: enter", __func__);
+
+ uc_info = (struct audio_usecase *)calloc(1, sizeof(struct audio_usecase));
+ uc_info->id = USECASE_AUDIO_PLAYBACK_FM;
+ uc_info->type = PCM_PLAYBACK;
+ uc_info->stream.out = adev->primary_output;
+ uc_info->devices = adev->primary_output->devices;
+ uc_info->in_snd_device = SND_DEVICE_NONE;
+ uc_info->out_snd_device = SND_DEVICE_NONE;
+
+ list_add_tail(&adev->usecase_list, &uc_info->list);
+
+ select_devices(adev, USECASE_AUDIO_PLAYBACK_FM);
+
+ pcm_dev_rx_id = platform_get_pcm_device_id(uc_info->id, PCM_PLAYBACK);
+ pcm_dev_tx_id = platform_get_pcm_device_id(uc_info->id, PCM_CAPTURE);
+
+ if (pcm_dev_rx_id < 0 || pcm_dev_tx_id < 0) {
+ ALOGE("%s: Invalid PCM devices (rx: %d tx: %d) for the usecase(%d)",
+ __func__, pcm_dev_rx_id, pcm_dev_tx_id, uc_info->id);
+ ret = -EIO;
+ goto exit;
+ }
+
+ ALOGV("%s: FM PCM devices (rx: %d tx: %d) for the usecase(%d)",
+ __func__, pcm_dev_rx_id, pcm_dev_tx_id, uc_info->id);
+
+ ALOGV("%s: Opening PCM playback device card_id(%d) device_id(%d)",
+ __func__, SOUND_CARD, pcm_dev_rx_id);
+ fmmod.fm_pcm_rx = pcm_open(SOUND_CARD,
+ pcm_dev_rx_id,
+ PCM_OUT, &pcm_config_fm);
+ if (fmmod.fm_pcm_rx && !pcm_is_ready(fmmod.fm_pcm_rx)) {
+ ALOGE("%s: %s", __func__, pcm_get_error(fmmod.fm_pcm_rx));
+ ret = -EIO;
+ goto exit;
+ }
+
+ ALOGV("%s: Opening PCM capture device card_id(%d) device_id(%d)",
+ __func__, SOUND_CARD, pcm_dev_tx_id);
+ fmmod.fm_pcm_tx = pcm_open(SOUND_CARD,
+ pcm_dev_tx_id,
+ PCM_IN, &pcm_config_fm);
+ if (fmmod.fm_pcm_tx && !pcm_is_ready(fmmod.fm_pcm_tx)) {
+ ALOGE("%s: %s", __func__, pcm_get_error(fmmod.fm_pcm_tx));
+ ret = -EIO;
+ goto exit;
+ }
+ pcm_start(fmmod.fm_pcm_rx);
+ pcm_start(fmmod.fm_pcm_tx);
+
+ fmmod.is_fm_running = true;
+ fm_set_volume(adev, fmmod.fm_volume);
+
+ ALOGD("%s: exit: status(%d)", __func__, ret);
+ return 0;
+
+exit:
+ fm_stop(adev);
+ ALOGE("%s: Problem in FM start: status(%d)", __func__, ret);
+ return ret;
+}
+
+void audio_extn_fm_set_parameters(struct audio_device *adev,
+ struct str_parms *parms)
+{
+ int ret, val;
+ char value[32]={0};
+ float vol =0.0;
+
+ ALOGV("%s: enter", __func__);
+ if(fmmod.is_fm_running) {
+ ret = str_parms_get_str(parms, AUDIO_PARAMETER_STREAM_ROUTING,
+ value, sizeof(value));
+ if (ret >= 0) {
+ val = atoi(value);
+ if(val > 0)
+ select_devices(adev, USECASE_AUDIO_PLAYBACK_FM);
+ }
+ }
+
+ ret = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_HANDLE_FM,
+ value, sizeof(value));
+ if (ret >= 0) {
+ val = atoi(value);
+ ALOGD("%s: FM usecase", __func__);
+ if (val != 0) {
+ if(val & AUDIO_DEVICE_OUT_FM
+ && fmmod.is_fm_running == false)
+ fm_start(adev);
+ else if (!(val & AUDIO_DEVICE_OUT_FM)
+ && fmmod.is_fm_running == true)
+ fm_stop(adev);
+ }
+ }
+
+ memset(value, 0, sizeof(value));
+ ret = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_FM_VOLUME,
+ value, sizeof(value));
+ if (ret >= 0) {
+ if (sscanf(value, "%f", &vol) != 1){
+ ALOGE("%s: error in retrieving fm volume", __func__);
+ ret = -EIO;
+ goto exit;
+ }
+ ALOGD("%s: set_fm_volume usecase", __func__);
+ fm_set_volume(adev, vol);
+ }
+
+exit:
+ ALOGV("%s: exit", __func__);
+}
+#endif /* FM_ENABLED end */
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index 045f031..e80f88f 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -94,6 +94,7 @@
[USECASE_AUDIO_RECORD] = "audio-record",
[USECASE_AUDIO_RECORD_LOW_LATENCY] = "low-latency-record",
[USECASE_VOICE_CALL] = "voice-call",
+ [USECASE_AUDIO_PLAYBACK_FM] = "play-fm",
};
@@ -110,13 +111,16 @@
STRING_TO_ENUM(AUDIO_CHANNEL_OUT_7POINT1),
};
+static struct audio_device *adev = NULL;
+static pthread_mutex_t adev_init_lock;
+static bool is_adev_initialised = false;
static int enable_audio_route(struct audio_device *adev,
struct audio_usecase *usecase,
bool update_mixer)
{
snd_device_t snd_device;
- char mixer_path[50];
+ char mixer_path[MIXER_PATH_MAX_LENGTH];
if (usecase == NULL)
return -EINVAL;
@@ -139,12 +143,12 @@
return 0;
}
-static int disable_audio_route(struct audio_device *adev,
+int disable_audio_route(struct audio_device *adev,
struct audio_usecase *usecase,
bool update_mixer)
{
snd_device_t snd_device;
- char mixer_path[50];
+ char mixer_path[MIXER_PATH_MAX_LENGTH];
if (usecase == NULL)
return -EINVAL;
@@ -196,7 +200,7 @@
return 0;
}
-static int disable_snd_device(struct audio_device *adev,
+int disable_snd_device(struct audio_device *adev,
snd_device_t snd_device,
bool update_mixer)
{
@@ -384,7 +388,7 @@
return ret;
}
-static struct audio_usecase *get_usecase_from_list(struct audio_device *adev,
+struct audio_usecase *get_usecase_from_list(struct audio_device *adev,
audio_usecase_t uc_id)
{
struct audio_usecase *usecase;
@@ -398,7 +402,7 @@
return NULL;
}
-static int select_devices(struct audio_device *adev,
+int select_devices(struct audio_device *adev,
audio_usecase_t uc_id)
{
snd_device_t out_snd_device = SND_DEVICE_NONE;
@@ -970,6 +974,13 @@
pthread_mutex_unlock(&adev->lock);
pthread_mutex_unlock(&out->lock);
}
+
+ if (out == adev->primary_output) {
+ pthread_mutex_lock(&adev->lock);
+ audio_extn_set_parameters(adev, parms);
+ pthread_mutex_unlock(&adev->lock);
+ }
+
str_parms_destroy(parms);
ALOGV("%s: exit: code(%d)", __func__, ret);
return ret;
@@ -1710,12 +1721,20 @@
static int adev_open(const hw_module_t *module, const char *name,
hw_device_t **device)
{
- struct audio_device *adev;
int i, ret;
ALOGD("%s: enter", __func__);
if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0) return -EINVAL;
+ pthread_mutex_lock(&adev_init_lock);
+ if (is_adev_initialised == true){
+ *device = &adev->device.common;
+ ALOGD("%s: returning existing instance of adev", __func__);
+ ALOGD("%s: exit", __func__);
+ pthread_mutex_unlock(&adev_init_lock);
+ return 0;
+ }
+
adev = calloc(1, sizeof(struct audio_device));
adev->device.common.tag = HARDWARE_DEVICE_TAG;
@@ -1742,7 +1761,6 @@
adev->device.dump = adev_dump;
/* Set the default route before the PCM stream is opened */
- pthread_mutex_lock(&adev->lock);
adev->mode = AUDIO_MODE_NORMAL;
adev->active_input = NULL;
adev->primary_output = NULL;
@@ -1756,7 +1774,6 @@
adev->acdb_settings = TTY_MODE_OFF;
adev->snd_dev_ref_cnt = calloc(SND_DEVICE_MAX, sizeof(int));
list_init(&adev->usecase_list);
- pthread_mutex_unlock(&adev->lock);
/* Loads platform specific libraries dynamically */
adev->platform = platform_init(adev);
@@ -1769,6 +1786,10 @@
}
*device = &adev->device.common;
+ /* update init flag*/
+ is_adev_initialised = true;
+ pthread_mutex_unlock(&adev_init_lock);
+
ALOGV("%s: exit", __func__);
return 0;
}
diff --git a/hal/audio_hw.h b/hal/audio_hw.h
index ecb6245..59f82d2 100644
--- a/hal/audio_hw.h
+++ b/hal/audio_hw.h
@@ -50,6 +50,8 @@
USECASE_AUDIO_PLAYBACK_DEEP_BUFFER = 0,
USECASE_AUDIO_PLAYBACK_LOW_LATENCY,
USECASE_AUDIO_PLAYBACK_MULTI_CH,
+ /* FM usecase */
+ USECASE_AUDIO_PLAYBACK_FM,
/* Capture usecases */
USECASE_AUDIO_RECORD,
@@ -151,6 +153,16 @@
void *platform;
};
+int select_devices(struct audio_device *adev,
+ audio_usecase_t uc_id);
+int disable_audio_route(struct audio_device *adev,
+ struct audio_usecase *usecase,
+ bool update_mixer);
+int disable_snd_device(struct audio_device *adev,
+ snd_device_t snd_device,
+ bool update_mixer);
+struct audio_usecase *get_usecase_from_list(struct audio_device *adev,
+ audio_usecase_t uc_id);
/*
* NOTE: when multiple mutexes have to be acquired, always take the
* stream_in or stream_out mutex first, followed by the audio_device mutex.
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index 85c57fc..02940b4 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -93,6 +93,7 @@
[USECASE_AUDIO_RECORD_LOW_LATENCY] = {LOWLATENCY_PCM_DEVICE,
LOWLATENCY_PCM_DEVICE},
[USECASE_VOICE_CALL] = {VOICE_CALL_PCM_DEVICE, VOICE_CALL_PCM_DEVICE},
+ [USECASE_AUDIO_PLAYBACK_FM] = {FM_PLAYBACK_PCM_DEVICE, FM_CAPTURE_PCM_DEVICE},
};
/* Array to store sound devices */
@@ -114,6 +115,7 @@
[SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES] = "voice-tty-full-headphones",
[SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES] = "voice-tty-vco-headphones",
[SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET] = "voice-tty-hco-handset",
+ [SND_DEVICE_OUT_TRANSMISSION_FM] = "transmission-fm",
[SND_DEVICE_OUT_ANC_HEADSET] = "anc-headphones",
[SND_DEVICE_OUT_ANC_FB_HEADSET] = "anc-fb-headphones",
[SND_DEVICE_OUT_VOICE_ANC_HEADSET] = "voice-anc-headphones",
@@ -142,6 +144,7 @@
[SND_DEVICE_IN_VOICE_REC_MIC] = "voice-rec-mic",
[SND_DEVICE_IN_VOICE_REC_DMIC] = "voice-rec-dmic-ef",
[SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE] = "voice-rec-dmic-ef-fluence",
+ [SND_DEVICE_IN_CAPTURE_FM] = "capture-fm",
[SND_DEVICE_IN_AANC_HANDSET_MIC] = "aanc-handset-mic",
};
@@ -163,6 +166,7 @@
[SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES] = 17,
[SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES] = 17,
[SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET] = 37,
+ [SND_DEVICE_OUT_TRANSMISSION_FM] = 0,
[SND_DEVICE_OUT_ANC_HEADSET] = 26,
[SND_DEVICE_OUT_ANC_FB_HEADSET] = 26,
[SND_DEVICE_OUT_VOICE_ANC_HEADSET] = 26,
@@ -188,6 +192,7 @@
[SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC] = 36,
[SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC] = 16,
[SND_DEVICE_IN_VOICE_REC_MIC] = 62,
+ [SND_DEVICE_IN_CAPTURE_FM] = 0,
[SND_DEVICE_IN_AANC_HANDSET_MIC] = 104,
/* TODO: Update with proper acdb ids */
[SND_DEVICE_IN_VOICE_REC_DMIC] = 62,
@@ -361,6 +366,10 @@
strcat(mixer_path, " hdmi");
else if (snd_device == SND_DEVICE_OUT_SPEAKER_AND_HDMI)
strcat(mixer_path, " speaker-and-hdmi");
+ else if (snd_device == SND_DEVICE_IN_CAPTURE_FM)
+ strlcat(mixer_path, " capture-fm", MIXER_PATH_MAX_LENGTH);
+ else if (snd_device == SND_DEVICE_OUT_TRANSMISSION_FM)
+ strlcat(mixer_path, " transmission-fm", MIXER_PATH_MAX_LENGTH);
}
int platform_get_pcm_device_id(audio_usecase_t usecase, int device_type)
@@ -545,6 +554,8 @@
snd_device = SND_DEVICE_OUT_BT_SCO;
} else if (devices & AUDIO_DEVICE_OUT_SPEAKER) {
snd_device = SND_DEVICE_OUT_VOICE_SPEAKER;
+ } else if (devices & AUDIO_DEVICE_OUT_FM_TX) {
+ snd_device = SND_DEVICE_OUT_TRANSMISSION_FM;
} else if (devices & AUDIO_DEVICE_OUT_EARPIECE) {
if (is_operator_tmus())
snd_device = SND_DEVICE_OUT_VOICE_HANDSET_TMUS;
@@ -605,6 +616,8 @@
snd_device = SND_DEVICE_OUT_BT_SCO;
} else if (devices & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
snd_device = SND_DEVICE_OUT_HDMI ;
+ } else if (devices & AUDIO_DEVICE_OUT_FM_TX) {
+ snd_device = SND_DEVICE_OUT_TRANSMISSION_FM;
} else if (devices & AUDIO_DEVICE_OUT_EARPIECE) {
snd_device = SND_DEVICE_OUT_HANDSET;
} else {
@@ -724,6 +737,10 @@
} else
set_echo_reference(adev->mixer, "NONE");
}
+ } else if (source == AUDIO_SOURCE_FM_RX) {
+ if (in_device & AUDIO_DEVICE_IN_FM_RX) {
+ snd_device = SND_DEVICE_IN_CAPTURE_FM;
+ }
} else if (source == AUDIO_SOURCE_DEFAULT) {
goto exit;
}
@@ -746,6 +763,8 @@
snd_device = SND_DEVICE_IN_BT_SCO_MIC ;
} else if (in_device & AUDIO_DEVICE_IN_AUX_DIGITAL) {
snd_device = SND_DEVICE_IN_HDMI_MIC;
+ } else if (in_device & AUDIO_DEVICE_IN_FM_RX) {
+ snd_device = SND_DEVICE_IN_CAPTURE_FM;
} else {
ALOGE("%s: Unknown input device(s) %#x", __func__, in_device);
ALOGW("%s: Using default handset-mic", __func__);
diff --git a/hal/msm8974/platform.h b/hal/msm8974/platform.h
index bbbb821..1bc4fc4 100644
--- a/hal/msm8974/platform.h
+++ b/hal/msm8974/platform.h
@@ -60,6 +60,7 @@
SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES,
SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES,
SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET,
+ SND_DEVICE_OUT_TRANSMISSION_FM,
SND_DEVICE_OUT_ANC_HEADSET,
SND_DEVICE_OUT_ANC_FB_HEADSET,
SND_DEVICE_OUT_VOICE_ANC_HEADSET,
@@ -95,6 +96,7 @@
SND_DEVICE_IN_VOICE_REC_MIC,
SND_DEVICE_IN_VOICE_REC_DMIC,
SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE,
+ SND_DEVICE_IN_CAPTURE_FM,
SND_DEVICE_IN_AANC_HANDSET_MIC,
SND_DEVICE_IN_END,
@@ -113,6 +115,7 @@
#define VOLUME_SET 0
#define MUTE_SET 1
#define VOLUME_CTL_PARAM_NUM 3
+#define MIXER_PATH_MAX_LENGTH 100
/*
* tinyAlsa library interprets period size as number of frames
@@ -138,6 +141,8 @@
#define DEEP_BUFFER_PCM_DEVICE 0
#define MULTI_CHANNEL_PCM_DEVICE 1
#define VOICE_CALL_PCM_DEVICE 2
+#define FM_PLAYBACK_PCM_DEVICE 5
+#define FM_CAPTURE_PCM_DEVICE 6
#ifdef PLATFORM_MSM8610
#define LOWLATENCY_PCM_DEVICE 12