audio: hal: add support for combo backend capture

-Add support to capture 10 channel audio from two backends
 6 channel from SLIM_0_TX and 4 channel from TERT_MI2S_TX.

-add support for SOURCE_DEC_TYPE to support 10 channel
 generic mic capture.

Change-Id: I4fdfb7fa07d916426a0f11d88506039d0556bac7
diff --git a/configure.ac b/configure.ac
old mode 100755
new mode 100644
index d2692c7..8c318df
--- a/configure.ac
+++ b/configure.ac
@@ -114,7 +114,7 @@
 if (test x$TARGET_SUPPORT = xsdmsteppe); then
          AC_SUBST([TARGET_PLATFORM], ["msm8974"])
          TARGET_CFLAGS="-DPLATFORM_MSMSTEPPE"
-         TARGET_CFLAGS+=" -DMAX_TARGET_SPECIFIC_CHANNEL_CNT=\"4\""
+         TARGET_CFLAGS+=" -DMAX_TARGET_SPECIFIC_CHANNEL_CNT=\"16\""
          TARGET_CFLAGS+=" -DINCALL_STEREO_CAPTURE_ENABLED"
 fi
 if (test x$TARGET_SUPPORT = xqrbx210); then
diff --git a/hal/audio_extn/audio_extn.c b/hal/audio_extn/audio_extn.c
index 81fdcc3..c4fa9ac 100644
--- a/hal/audio_extn/audio_extn.c
+++ b/hal/audio_extn/audio_extn.c
@@ -479,7 +479,7 @@
         cust_ch_mixer_cfg[len++] = pinfo->ip_channels;
         cust_ch_mixer_cfg[len++] = pinfo->op_channels;
         for (i = 0; i < (int) (pinfo->op_channels * pinfo->ip_channels); i++) {
-            ALOGV("%s: coeff[%d] %d", __func__, i, params->coeffs[i]);
+            ALOGV("%s: coeff[%d] %lu", __func__, i, (unsigned long )params->coeffs[i]);
             cust_ch_mixer_cfg[len++] = params->coeffs[i];
         }
         err = mixer_ctl_set_array(ctl, cust_ch_mixer_cfg, len);
@@ -634,7 +634,7 @@
     struct mixer_ctl *ctl = NULL;
     char mixer_ctl_name[128] = {0};
     int ret = 0;
-    int channel_map[AUDIO_MAX_DSP_CHANNELS] = {0};
+    long channel_map[AUDIO_MAX_DSP_CHANNELS] = {0};
 
     ALOGV("%s channel_count %d", __func__, ch_count);
 
@@ -3790,7 +3790,8 @@
 
     int max_mic_count = platform_get_max_mic_count(adev->platform);
     /* validate input params. Avoid updated channel mask if loopback device */
-    if ((channel_count == 6) &&
+    /* validate input params. Avoid updated channel mask if HDMI or loopback device */
+    if ((channel_count > max_mic_count) &&
         (in->format == AUDIO_FORMAT_PCM_16_BIT) &&
         (!is_loopback_input_device(get_device_types(&in->device_list)))) {
         switch (max_mic_count) {
diff --git a/hal/audio_extn/audio_extn.h b/hal/audio_extn/audio_extn.h
index 89ad5af..057d9a8 100644
--- a/hal/audio_extn/audio_extn.h
+++ b/hal/audio_extn/audio_extn.h
@@ -98,6 +98,14 @@
 #define AUDIO_OUTPUT_FLAG_INTERACTIVE 0x4000000
 #endif
 
+#ifndef AUDIO_DEVICE_IN_SPEAKER_MIC2
+#define AUDIO_DEVICE_IN_SPEAKER_MIC2 0x10000000
+#endif
+
+#ifndef AUDIO_DEVICE_IN_SPEAKER_MIC3
+#define AUDIO_DEVICE_IN_SPEAKER_MIC3 0x20000000
+#endif
+
 int audio_extn_parse_compress_metadata(struct stream_out *out,
                                        struct str_parms *parms);
 
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index d231a33..05a33b4 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -148,6 +148,9 @@
 #define STR(x) #x
 #endif
 
+#define IS_USB_HIFI (MAX_HIFI_CHANNEL_COUNT >= MAX_CHANNEL_COUNT) ? \
+                     true : false
+
 #ifdef LINUX_ENABLED
 static inline int64_t audio_utils_ns_from_timespec(const struct timespec *ts)
 {
@@ -799,6 +802,17 @@
     return 0;
 }
 
+bool is_combo_audio_input_device(struct listnode *devices){
+
+    if (devices == NULL)
+        return false;
+
+    if(compare_device_type(devices, AUDIO_DEVICE_IN_BUILTIN_MIC|AUDIO_DEVICE_IN_SPEAKER_MIC2))
+        return true;
+    else
+        return false;
+}
+
 static inline void adjust_frames_for_device_delay(struct stream_out *out,
                                                   uint32_t *dsp_frames) {
     // Adjustment accounts for A2dp encoder latency with offload usecases
@@ -1444,7 +1458,11 @@
 
     if (usecase->type == PCM_CAPTURE) {
         in = usecase->stream.in;
-        if (in && is_loopback_input_device(get_device_types(&in->device_list))) {
+        if ((in && is_loopback_input_device(get_device_types(&in->device_list))) ||
+            (in && is_combo_audio_input_device(&in->device_list)) ||
+            (in && ((compare_device_type(&in->device_list, AUDIO_DEVICE_IN_BUILTIN_MIC) ||
+                     compare_device_type(&in->device_list, AUDIO_DEVICE_IN_LINE)) &&
+                    (snd_device == SND_DEVICE_IN_HANDSET_GENERIC_6MIC)))) {
             ALOGD("%s: set custom mtmx params v1", __func__);
             audio_extn_set_custom_mtmx_params_v1(adev, usecase, true);
         }
@@ -1539,7 +1557,11 @@
 
     if (usecase->type == PCM_CAPTURE) {
         in = usecase->stream.in;
-        if (in && is_loopback_input_device(get_device_types(&in->device_list))) {
+        if ((in && is_loopback_input_device(get_device_types(&in->device_list))) ||
+            (in && is_combo_audio_input_device(&in->device_list)) ||
+            (in && ((compare_device_type(&in->device_list, AUDIO_DEVICE_IN_BUILTIN_MIC) ||
+                    compare_device_type(&in->device_list, AUDIO_DEVICE_IN_LINE)) &&
+                    (snd_device == SND_DEVICE_IN_HANDSET_GENERIC_6MIC)))){
             ALOGD("%s: reset custom mtmx params v1", __func__);
             audio_extn_set_custom_mtmx_params_v1(adev, usecase, false);
         }
@@ -4708,9 +4730,10 @@
                                     int channel_count,
                                     bool is_low_latency)
 {
+    bool is_usb_hifi = IS_USB_HIFI;
     /* Don't know if USB HIFI in this context so use true to be conservative */
     if (check_input_parameters(sample_rate, format, channel_count,
-                               true /*is_usb_hifi */) != 0)
+                               is_usb_hifi) != 0)
         return 0;
 
     return get_stream_buffer_size(AUDIO_CAPTURE_PERIOD_DURATION_MSEC,
@@ -9593,11 +9616,12 @@
 static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev __unused,
                                          const struct audio_config *config)
 {
+    bool is_usb_hifi = IS_USB_HIFI;
     int channel_count = audio_channel_count_from_in_mask(config->channel_mask);
 
     /* Don't know if USB HIFI in this context so use true to be conservative */
     if (check_input_parameters(config->sample_rate, config->format, channel_count,
-                               true /*is_usb_hifi */) != 0)
+                              is_usb_hifi) != 0)
         return 0;
 
     return get_input_buffer_size(config->sample_rate, config->format, channel_count,
diff --git a/hal/audio_hw.h b/hal/audio_hw.h
index a25f68d..d24202c 100644
--- a/hal/audio_hw.h
+++ b/hal/audio_hw.h
@@ -908,6 +908,7 @@
 #define CHECK(condition) LOG_ALWAYS_FATAL_IF(!(condition), "%s",\
             __FILE__ ":" LITERAL_TO_STRING(__LINE__)\
             " ASSERT_FATAL(" #condition ") failed.")
+bool is_combo_audio_input_device(struct listnode *devices);
 
 static inline bool is_loopback_input_device(audio_devices_t device) {
     if (!audio_is_output_device(device) &&
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index a6d546a..52df55c 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -824,6 +824,17 @@
     [SND_DEVICE_IN_ICC] = "speaker-mic",
     [SND_DEVICE_IN_SYNTH_MIC] = "speaker-mic",
     [SND_DEVICE_IN_ECHO_REFERENCE] = "echo-reference",
+    [SND_DEVICE_IN_HANDSET_GENERIC_DMIC] = "dmic-endfire",
+    [SND_DEVICE_IN_HANDSET_GENERIC_6MIC] = "handset-6mic",
+    [SND_DEVICE_IN_HANDSET_GENERIC_8MIC] = "handset-8mic",
+    [SND_DEVICE_IN_HANDSET_GENERIC_DMIC_AND_EC_REF_LOOPBACK] = "handset-dmic-and-ec-ref-loopback",
+    [SND_DEVICE_IN_HANDSET_GENERIC_QMIC_AND_EC_REF_LOOPBACK] = "handset-qmic-and-ec-ref-loopback",
+    [SND_DEVICE_IN_HANDSET_GENERIC_6MIC_AND_EC_REF_LOOPBACK] = "handset-6mic-and-ec-ref-loopback",
+    [SND_DEVICE_IN_HANDSET_GENERIC_8MIC_AND_EC_REF_LOOPBACK] = "handset-8mic-and-ec-ref-loopback",
+    [SND_DEVICE_IN_ECALL] = "handset-mic",
+    [SND_DEVICE_IN_SPEAKER_MIC2] = "speaker-mic2",
+    [SND_DEVICE_IN_SPEAKER_MIC3] = "speaker-mic3",
+    [SND_DEVICE_IN_HANDSET_GENERIC_6MIC_AND_SPEAKER_MIC2] = "handset-6mic-and-speaker-mic2",
 };
 
 // Platform specific backend bit width table
@@ -1122,6 +1133,8 @@
     [SND_DEVICE_IN_CALL_PROXY] = 33,
     [SND_DEVICE_IN_ICC] = 46,
     [SND_DEVICE_IN_SYNTH_MIC] = 11,
+    [SND_DEVICE_IN_SPEAKER_MIC2] = 11,
+    [SND_DEVICE_IN_SPEAKER_MIC3] = 11,
 };
 
 struct name_to_index {
@@ -1388,6 +1401,16 @@
     {TO_NAME_INDEX(SND_DEVICE_OUT_ICC)},
     {TO_NAME_INDEX(SND_DEVICE_OUT_SYNTH_SPKR)},
     {TO_NAME_INDEX(SND_DEVICE_IN_SYNTH_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_GENERIC_DMIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_GENERIC_6MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_GENERIC_8MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_GENERIC_DMIC_AND_EC_REF_LOOPBACK)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_GENERIC_QMIC_AND_EC_REF_LOOPBACK)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_GENERIC_6MIC_AND_EC_REF_LOOPBACK)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_GENERIC_8MIC_AND_EC_REF_LOOPBACK)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_MIC2)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_MIC3)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_GENERIC_6MIC_AND_SPEAKER_MIC2)},
 };
 
 static char * backend_tag_table[SND_DEVICE_MAX] = {0};
@@ -2466,6 +2489,8 @@
     backend_tag_table[SND_DEVICE_OUT_CALL_PROXY] = strdup("call-proxy");
     backend_tag_table[SND_DEVICE_OUT_HAPTICS] = strdup("haptics");
     backend_tag_table[SND_DEVICE_IN_CALL_PROXY] = strdup("call-proxy-in");
+    backend_tag_table[SND_DEVICE_IN_SPEAKER_MIC2] = strdup("speaker-mic2");
+    backend_tag_table[SND_DEVICE_IN_SPEAKER_MIC3] = strdup("speaker-mic3");
 
     hw_interface_table[SND_DEVICE_OUT_HANDSET] = strdup("SLIMBUS_0_RX");
     hw_interface_table[SND_DEVICE_OUT_SPEAKER] = strdup("SLIMBUS_0_RX");
@@ -2716,6 +2741,8 @@
     hw_interface_table[SND_DEVICE_OUT_SYNTH_SPKR] = strdup("TERT_TDM_RX_0");
     hw_interface_table[SND_DEVICE_IN_SYNTH_MIC] = strdup("TERT_TDM_TX_0");
     hw_interface_table[SND_DEVICE_IN_ECHO_REFERENCE] = strdup("SEC_TDM_TX_0");
+    hw_interface_table[SND_DEVICE_IN_SPEAKER_MIC2] = strdup("QUAT_TDM_TX_0");
+    hw_interface_table[SND_DEVICE_IN_SPEAKER_MIC3] = strdup("SEN_TDM_TX_0");
     my_data->max_mic_count = PLATFORM_DEFAULT_MIC_COUNT;
 
      /*remove ALAC & APE from DSP decoder list based on software decoder availability*/
@@ -3091,6 +3118,10 @@
 {
     // support max to mono, example if max count is 3, usecase supports Three, dual and mono mic
     switch (my_data->max_mic_count) {
+        case 10:
+            my_data->source_mic_type |= SOURCE_DEC_MIC;
+        case 8:
+            my_data->source_mic_type |= SOURCE_OCT_MIC;
         case 6:
             my_data->source_mic_type |= SOURCE_HEX_MIC;
         case 4:
@@ -4071,6 +4102,31 @@
             strdup("QUAT_MI2S_TX Channels");
     }
 
+    my_data->current_backend_cfg[SEC_MI2S_RX_BACKEND].samplerate_mixer_ctl =
+        strdup("SEC_MI2S_RX SampleRate");
+    my_data->current_backend_cfg[SEC_MI2S_RX_BACKEND].channels_mixer_ctl =
+        strdup("SEC_MI2S_RX Channels");
+    my_data->current_backend_cfg[TERT_MI2S_RX_BACKEND].bitwidth_mixer_ctl =
+        strdup("TERT_MI2S_RX Format");
+    my_data->current_backend_cfg[TERT_MI2S_RX_BACKEND].samplerate_mixer_ctl =
+        strdup("TERT_MI2S_RX SampleRate");
+    my_data->current_backend_cfg[TERT_MI2S_RX_BACKEND].channels_mixer_ctl =
+        strdup("TERT_MI2S_RX Channels");
+
+    my_data->current_backend_cfg[TERT_MI2S_TX_BACKEND].bitwidth_mixer_ctl =
+        strdup("TERT_MI2S_TX Format");
+    my_data->current_backend_cfg[TERT_MI2S_TX_BACKEND].samplerate_mixer_ctl =
+        strdup("TERT_MI2S_TX SampleRate");
+    my_data->current_backend_cfg[TERT_MI2S_TX_BACKEND].channels_mixer_ctl =
+        strdup("TERT_MI2S_TX Channels");
+
+    my_data->current_backend_cfg[QUAT_MI2S_RX_BACKEND].bitwidth_mixer_ctl =
+        strdup("QUAT_MI2S_RX Format");
+    my_data->current_backend_cfg[QUAT_MI2S_RX_BACKEND].samplerate_mixer_ctl =
+        strdup("QUAT_MI2S_RX SampleRate");
+    my_data->current_backend_cfg[QUAT_MI2S_RX_BACKEND].channels_mixer_ctl =
+        strdup("QUAT_MI2S_RX Channels");
+
     my_data->current_backend_cfg[SPDIF_TX_BACKEND].bitwidth_mixer_ctl =
         strdup("PRIM_SPDIF_TX Format");
     my_data->current_backend_cfg[SPDIF_TX_BACKEND].samplerate_mixer_ctl =
@@ -5505,6 +5561,15 @@
                         port = HEADSET_TX_BACKEND;
                 else if (strcmp(backend_tag_table[snd_device], "call-proxy-in") == 0)
                         port = CALL_PROXY_TX_BACKEND;
+                else if (!strncmp(platform_get_snd_device_backend_interface(snd_device),
+                         "QUAT_TDM_TX_0", sizeof("QUAT_TDM_TX_0")))
+                         port = QUAT_TDM_TX_BACKEND;
+                else if (!strncmp(platform_get_snd_device_backend_interface(snd_device),
+                         "SEN_TDM_TX_0", sizeof("SEN_TDM_TX_0")))
+                        port = SEN_TDM_TX_BACKEND;
+                else if (!strncmp(platform_get_snd_device_backend_interface(snd_device),
+                         "TERT_MI2S_TX", sizeof("TERT_MI2S_TX")))
+                        port = TERT_MI2S_TX_BACKEND;
         }
     } else {
         ALOGW("%s:napb: Invalid device - %d ", __func__, snd_device);
@@ -6336,6 +6401,31 @@
         new_snd_devices[0] = SND_DEVICE_IN_HANDSET_8MIC;
         new_snd_devices[1] = SND_DEVICE_IN_EC_REF_LOOPBACK;
         ret = 0;
+    } else if (SND_DEVICE_IN_HANDSET_GENERIC_DMIC_AND_EC_REF_LOOPBACK == snd_device) {
+        *num_devices = 2;
+        new_snd_devices[0] = SND_DEVICE_IN_HANDSET_GENERIC_DMIC;
+        new_snd_devices[1] = SND_DEVICE_IN_EC_REF_LOOPBACK;
+        ret = 0;
+    } else if (SND_DEVICE_IN_HANDSET_GENERIC_QMIC_AND_EC_REF_LOOPBACK == snd_device) {
+        *num_devices = 2;
+        new_snd_devices[0] = SND_DEVICE_IN_HANDSET_GENERIC_QMIC;
+        new_snd_devices[1] = SND_DEVICE_IN_EC_REF_LOOPBACK;
+        ret = 0;
+    } else if (SND_DEVICE_IN_HANDSET_GENERIC_6MIC_AND_EC_REF_LOOPBACK == snd_device) {
+        *num_devices = 2;
+        new_snd_devices[0] = SND_DEVICE_IN_HANDSET_GENERIC_6MIC;
+        new_snd_devices[1] = SND_DEVICE_IN_EC_REF_LOOPBACK;
+        ret = 0;
+    } else if (SND_DEVICE_IN_HANDSET_GENERIC_8MIC_AND_EC_REF_LOOPBACK == snd_device) {
+        *num_devices = 2;
+        new_snd_devices[0] = SND_DEVICE_IN_HANDSET_GENERIC_8MIC;
+        new_snd_devices[1] = SND_DEVICE_IN_EC_REF_LOOPBACK;
+        ret = 0;
+    } else if (SND_DEVICE_IN_HANDSET_GENERIC_6MIC_AND_SPEAKER_MIC2 == snd_device) {
+        *num_devices = 2;
+        new_snd_devices[0] = SND_DEVICE_IN_HANDSET_GENERIC_6MIC;
+        new_snd_devices[1] = SND_DEVICE_IN_SPEAKER_MIC2;
+        ret = 0;
     }
 
 
@@ -6891,9 +6981,8 @@
             snd_device = SND_DEVICE_OUT_SPEAKER_VBAT;
           else if (my_data->is_wsa_speaker)
             snd_device = SND_DEVICE_OUT_SPEAKER_WSA;
-          else {
+          else
             snd_device = SND_DEVICE_OUT_SPEAKER;
-          }
     } else if (is_sco_out_device_type(&devices)) {
         if (adev->swb_speech_mode != SPEECH_MODE_INVALID)
                 snd_device = SND_DEVICE_OUT_BT_SCO_SWB;
@@ -7399,7 +7488,7 @@
                (my_data->source_mic_type & SOURCE_QUAD_MIC) &&  // AND 4mic is available
                (compare_device_type(&in_devices, AUDIO_DEVICE_IN_BUILTIN_MIC) ||    // AND device is buit-in mic or back mic
                 compare_device_type(&in_devices, AUDIO_DEVICE_IN_BACK_MIC)) &&
-               (my_data->fluence_in_audio_rec == true &&       //  AND fluencepro is enabled
+               (my_data->fluence_in_audio_rec == true &&  (channel_count == 4)  && //  AND fluencepro is enabled
                 my_data->fluence_type & FLUENCE_QUAD_MIC) &&
                (source == AUDIO_SOURCE_CAMCORDER ||           // AND source is cam/mic/unprocessed
                 source == AUDIO_SOURCE_UNPROCESSED ||
@@ -7407,36 +7496,55 @@
                 snd_device = SND_DEVICE_IN_HANDSET_GENERIC_QMIC;
                 platform_set_echo_reference(adev, true, out_devices);
     } else if (my_data->use_generic_handset == true &&          // System prop is enabled
-               (my_data->ambisonic_capture == true) &&          // Enable Ambisonic capture
-               (my_data->source_mic_type & SOURCE_QUAD_MIC) &&  // AND 4mic is available
-               (compare_device_type(&in_devices, AUDIO_DEVICE_IN_BUILTIN_MIC) ||    // AND device is Built-in
-                compare_device_type(&in_devices, AUDIO_DEVICE_IN_BACK_MIC)) &&       // OR Back-mic
+              (my_data->source_mic_type & SOURCE_QUAD_MIC) &&  // AND 4mic is available
+               (compare_device_type(&in_devices, AUDIO_DEVICE_IN_BUILTIN_MIC|AUDIO_DEVICE_IN_SPEAKER_MIC2) ||
+                compare_device_type(&in_devices, AUDIO_DEVICE_IN_BUILTIN_MIC) ||   // AND device is Built-in
+                compare_device_type(&in_devices, AUDIO_DEVICE_IN_BACK_MIC)) &&
+                     // OR Back-mic
                (source == AUDIO_SOURCE_MIC ||                   // AND source is MIC for 16bit
                 source == AUDIO_SOURCE_UNPROCESSED ||           // OR unprocessed for 24bit
-                source == AUDIO_SOURCE_CAMCORDER) &&            // OR camera usecase
-                ((int)channel_mask == (int)AUDIO_CHANNEL_INDEX_MASK_4) && // AND 4mic channel mask
-                (sample_rate == 48000)) {             // AND sample rate is 48Khz
+                source == AUDIO_SOURCE_CAMCORDER)) {            // OR camera usecase
+
+            if ( my_data->ambisonic_capture == true )
+            {
                 snd_device = SND_DEVICE_IN_HANDSET_GENERIC_QMIC;
                 /* Below check is true only in LA build to set
-                   ambisonic profile. In LE hal client will set profile
-                 */
+                ambisonic profile. In LE hal client will set profile
+                */
                 if (my_data->ambisonic_profile == true &&
                     in != NULL)
                     strlcpy(in->profile, "record_ambisonic",
                             sizeof(in->profile));
 
                 if (in != NULL && !strncmp(in->profile, "record_ambisonic",
-                                           strlen("record_ambisonic"))) {
+                                        strlen("record_ambisonic")))
+                {
                     /* Validate input stream configuration for
-                       Ambisonic capture.
-                     */
+                    Ambisonic capture.
+                    */
                     if (((int)channel_mask != (int)AUDIO_CHANNEL_INDEX_MASK_4) ||
-                         (sample_rate != 48000)) {
-                          snd_device = SND_DEVICE_NONE;
-                          ALOGW("Unsupported Input configuration for ambisonic capture");
-                          goto exit;
+                        (sample_rate != 48000))
+                    {
+                        snd_device = SND_DEVICE_NONE;
                     }
                 }
+            }
+            else if (my_data->source_mic_type & SOURCE_DEC_MIC) {
+                if(compare_device_type(&in_devices, AUDIO_DEVICE_IN_BUILTIN_MIC|AUDIO_DEVICE_IN_SPEAKER_MIC2))
+                    snd_device = SND_DEVICE_IN_HANDSET_GENERIC_6MIC_AND_SPEAKER_MIC2;
+                else if(channel_count == 6)
+                    snd_device = SND_DEVICE_IN_HANDSET_GENERIC_6MIC;
+            } else if (my_data->source_mic_type & SOURCE_OCT_MIC) {
+                   snd_device = SND_DEVICE_IN_HANDSET_GENERIC_8MIC;
+            } else if (my_data->source_mic_type & SOURCE_HEX_MIC) {
+                   snd_device = SND_DEVICE_IN_HANDSET_GENERIC_6MIC;
+            } else if (my_data->source_mic_type & SOURCE_QUAD_MIC) {
+                   snd_device = SND_DEVICE_IN_HANDSET_GENERIC_QMIC;
+            } else if (my_data->source_mic_type & SOURCE_DUAL_MIC) {
+                   snd_device = SND_DEVICE_IN_HANDSET_GENERIC_DMIC;
+            }  else
+                snd_device = SND_DEVICE_NONE;
+
     } else if (source == AUDIO_SOURCE_CAMCORDER) {
         if (compare_device_type(&in_devices, AUDIO_DEVICE_IN_BUILTIN_MIC) ||
             compare_device_type(&in_devices, AUDIO_DEVICE_IN_BACK_MIC)) {
@@ -10621,6 +10729,11 @@
     int backend_idx = platform_get_backend_index(snd_device);
     int ret = 0;
     struct audio_backend_cfg backend_cfg;
+    struct audio_custom_mtmx_in_params_info in_info = {0};
+    struct audio_custom_mtmx_in_params *in_params = NULL;
+    int new_snd_devices[SND_DEVICE_OUT_END] = {0};
+    int i, num_devices = 1;
+    struct platform_data *my_data = (struct platform_data *)adev->platform;
 
     backend_cfg.passthrough_enabled = false;
 
@@ -10659,12 +10772,46 @@
           backend_cfg.format,
           backend_idx, usecase->id,
           platform_get_snd_device_name(snd_device));
-    if (platform_check_capture_codec_backend_cfg(adev, backend_idx,
-                                                 &backend_cfg, snd_device)) {
-        ret = platform_set_codec_backend_cfg(adev, usecase, snd_device,
+
+    if (is_combo_audio_input_device(&usecase->stream.in->device_list) &&
+        platform_split_snd_device(my_data, snd_device, &num_devices,
+        new_snd_devices) == 0){
+
+        in_info.usecase_id[0] = usecase->id;
+        in_info.op_channels = backend_cfg.channels;
+        in_params = platform_get_custom_mtmx_in_params(adev->platform, &in_info);
+
+        for (i = 0; i < num_devices; i++) {
+            if (in_params) {
+                if(new_snd_devices[i] == SND_DEVICE_IN_SPEAKER_MIC2){
+                    backend_cfg.channels = in_params->i2s_ch;
+                    ALOGD("%s txbecf: set channels to %d from mtmx in params",__func__,in_params->i2s_ch);
+                } else {
+                    ALOGD("%s: txbecf: set channels to %d from mtmx in params",
+                       __func__, in_params->mic_ch);
+                    backend_cfg.channels = in_params->mic_ch;
+                }
+            }
+            if (platform_check_capture_codec_backend_cfg(adev, platform_get_backend_index(new_snd_devices[i]),
+                                                 &backend_cfg, new_snd_devices[i])) {
+                ret = platform_set_codec_backend_cfg(adev, usecase, new_snd_devices[i],
                                              backend_cfg);
-        if(!ret)
-            return true;
+                if(!ret)
+                    ret = true;
+                else
+                    ret = false;
+            }
+       }
+       return ret;
+
+    } else {
+        if (platform_check_capture_codec_backend_cfg(adev, backend_idx,
+                                                 &backend_cfg, snd_device)) {
+            ret = platform_set_codec_backend_cfg(adev, usecase, snd_device,
+                                             backend_cfg);
+            if(!ret)
+                return true;
+        }
     }
 
     return false;
diff --git a/hal/msm8974/platform.h b/hal/msm8974/platform.h
index cdd9469..1535940 100644
--- a/hal/msm8974/platform.h
+++ b/hal/msm8974/platform.h
@@ -43,6 +43,8 @@
     SOURCE_THREE_MIC = 0x4,            /* Target contains 3 mics */
     SOURCE_QUAD_MIC  = 0x8,            /* Target contains 4 mics */
     SOURCE_HEX_MIC   = 0x16,           /* Target contains 6 mics */
+    SOURCE_OCT_MIC   = 0x20,           /* Target contains 8 mics */
+    SOURCE_DEC_MIC   = 0x40,
 };
 
 enum {
@@ -366,6 +368,18 @@
     SND_DEVICE_IN_ICC,
     SND_DEVICE_IN_SYNTH_MIC,
     SND_DEVICE_IN_ECHO_REFERENCE,
+    SND_DEVICE_IN_HANDSET_GENERIC_DMIC,
+    SND_DEVICE_IN_HANDSET_GENERIC_6MIC,
+    SND_DEVICE_IN_HANDSET_GENERIC_8MIC,
+    SND_DEVICE_IN_HANDSET_GENERIC_DMIC_AND_EC_REF_LOOPBACK,
+    SND_DEVICE_IN_HANDSET_GENERIC_QMIC_AND_EC_REF_LOOPBACK,
+    SND_DEVICE_IN_HANDSET_GENERIC_6MIC_AND_EC_REF_LOOPBACK,
+    SND_DEVICE_IN_HANDSET_GENERIC_8MIC_AND_EC_REF_LOOPBACK,
+    SND_DEVICE_IN_HDMI_MIC_DSD,
+    SND_DEVICE_IN_ECALL,
+    SND_DEVICE_IN_SPEAKER_MIC2,
+    SND_DEVICE_IN_SPEAKER_MIC3,
+    SND_DEVICE_IN_HANDSET_GENERIC_6MIC_AND_SPEAKER_MIC2,
     SND_DEVICE_IN_END,
 
     SND_DEVICE_MAX = SND_DEVICE_IN_END,
@@ -405,6 +419,12 @@
     HDMI_ARC_TX_BACKEND,
     HEADSET_TX_BACKEND,
     CALL_PROXY_TX_BACKEND,
+    SEC_MI2S_RX_BACKEND,
+    TERT_MI2S_RX_BACKEND,
+    TERT_MI2S_TX_BACKEND,
+    QUAT_MI2S_RX_BACKEND,
+    QUAT_TDM_TX_BACKEND,
+    SEN_TDM_TX_BACKEND,
     MAX_CODEC_BACKENDS
 };
 
diff --git a/hal/platform_api.h b/hal/platform_api.h
index 805db2f..9663372 100755
--- a/hal/platform_api.h
+++ b/hal/platform_api.h
@@ -9,7 +9,7 @@
  * 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.
@@ -149,7 +149,7 @@
 struct audio_custom_mtmx_params {
     struct listnode list;
     struct audio_custom_mtmx_params_info info;
-    uint32_t coeffs[0];
+    uint64_t coeffs[0];
 };
 
 struct audio_custom_mtmx_in_params_info {
@@ -168,6 +168,7 @@
     struct audio_custom_mtmx_in_params_info in_info;
     uint32_t ip_channels;
     uint32_t mic_ch;
+    uint32_t i2s_ch;
     uint32_t ec_ref_ch;
     struct audio_custom_mtmx_params_in_ch_info in_ch_info[MAX_IN_CHANNELS];
 };
diff --git a/hal/platform_info.c b/hal/platform_info.c
old mode 100755
new mode 100644
index da11cae..de7f187
--- a/hal/platform_info.c
+++ b/hal/platform_info.c
@@ -1225,6 +1225,10 @@
               ENUM_TO_STRING(AUDIO_DEVICE_IN_LOOPBACK),
               sizeof(mtmx_in_params->in_ch_info[in_ch_idx].device)))
         mtmx_in_params->ec_ref_ch = mtmx_in_params->in_ch_info[in_ch_idx].ch_count;
+    else if (!strncmp(mtmx_in_params->in_ch_info[in_ch_idx].device,
+                 ENUM_TO_STRING(AUDIO_DEVICE_IN_SPEAKER_MIC2),
+                 sizeof(mtmx_in_params->in_ch_info[in_ch_idx].device)))
+        mtmx_in_params->i2s_ch = mtmx_in_params->in_ch_info[in_ch_idx].ch_count;
 
     mtmx_in_params->ip_channels += mtmx_in_params->in_ch_info[in_ch_idx].ch_count;
 }
@@ -1541,6 +1545,8 @@
                 return;
             }
             section = CUSTOM_MTMX_PARAM_IN_CH_INFO;
+            section_process_fn fn = section_table[section];
+            fn(attr);
         } else if (strcmp(tag_name, "audio_input_source_delay") == 0) {
             section = AUDIO_SOURCE_DELAY;
         } else if (strcmp(tag_name, "audio_source_delay") == 0) {
diff --git a/qahw/inc/qahw_defs.h b/qahw/inc/qahw_defs.h
index 4601a2b..87389b4 100644
--- a/qahw/inc/qahw_defs.h
+++ b/qahw/inc/qahw_defs.h
@@ -228,6 +228,9 @@
 #define QAHW_AUDIO_DEVICE_OUT_SPEAKER3 0x20000000
 #define QAHW_AUDIO_DEVICE_OUT_OPTICAL 0x40000
 
+#define QAHW_AUDIO_DEVICE_IN_SPEAKER_MIC2 0x10000000
+#define QAHW_AUDIO_DEVICE_IN_SPEAKER_MIC3 0x20000000
+
 #define QAHW_PCM_CUSTOM_CHANNEL_MAP_12  59
 #define QAHW_PCM_CUSTOM_CHANNEL_MAP_13  60
 #define QAHW_PCM_CUSTOM_CHANNEL_MAP_14  61
diff --git a/qahw_api/test/qahw_multi_record_test.c b/qahw_api/test/qahw_multi_record_test.c
index e033921..63f5e22 100644
--- a/qahw_api/test/qahw_multi_record_test.c
+++ b/qahw_api/test/qahw_multi_record_test.c
@@ -280,6 +280,9 @@
   case 4:
       params->config.channel_mask = AUDIO_CHANNEL_INDEX_MASK_4;
       break;
+  case 6:
+      params->config.channel_mask = AUDIO_CHANNEL_INDEX_MASK_6;
+      break;
   case 8:
       params->config.channel_mask = AUDIO_CHANNEL_INDEX_MASK_8;
       break;