commit ed408a10093827d2ea2f0252b14194881b429138
author Venkata Narendra Kumar Gutta <vgutta@codeaurora.org> Tue Mar 31 20:24:04 2015 +0530
committer Venkata Narendra Kumar Gutta <vgutta@codeaurora.org> Wed Apr 15 15:49:34 2015 +0530
tree f492ea14d413676a6b7850fd231eef84e9961bb0
parent f57a1d460b63b13bdca5354e5ecefa08a6e2ebef

hal: update QCHAT pcm device ID for external codec hardware

Update QCHAT pcm device ID as per the machine driver. This is to
support QCHAT on msm8939 external codec hardware.
Also, modify the logic to select different pcm device ID's for
an usecase based on codec type.

CRs-Fixed: 820740
Change-Id: I6bfd99655a9f8a0953796ba8910ddec891e3821a

hal/msm8916/platform.c

diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index cfca1d5..e370775 100755
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -209,6 +209,14 @@
     bool edid_valid;
 };
 
+static bool is_external_codec = false;
+static const int pcm_device_table_of_ext_codec[AUDIO_USECASE_MAX][2] = {
+   [USECASE_QCHAT_CALL] = {QCHAT_CALL_PCM_DEVICE_OF_EXT_CODEC, QCHAT_CALL_PCM_DEVICE_OF_EXT_CODEC}
+};
+
+/* List of use cases that has different PCM device ID's for internal and external codecs */
+static const int misc_usecase[AUDIO_USECASE_MAX] = { USECASE_QCHAT_CALL };
+
 int pcm_device_table[AUDIO_USECASE_MAX][2] = {
     [USECASE_AUDIO_PLAYBACK_DEEP_BUFFER] = {DEEP_BUFFER_PCM_DEVICE,
                                             DEEP_BUFFER_PCM_DEVICE},
@@ -676,6 +684,32 @@
 #define DEEP_BUFFER_PLATFORM_DELAY (29*1000LL)
 #define LOW_LATENCY_PLATFORM_DELAY (13*1000LL)
 
+static bool is_misc_usecase(audio_usecase_t usecase) {
+     bool ret = false;
+     int i;
+
+     for (i = 0; i < AUDIO_USECASE_MAX; i++) {
+          if(usecase == misc_usecase[i]) {
+             ret = true;
+             break;
+          }
+     }
+     return ret;
+}
+
+
+static void update_codec_type(const char *snd_card_name) {
+
+     if (!strncmp(snd_card_name, "msm8939-tapan-snd-card",
+                  sizeof("msm8939-tapan-snd-card")) ||
+         !strncmp(snd_card_name, "msm8939-tapan9302-snd-card",
+                  sizeof("msm8939-tapan9302-snd-card"))||
+         !strncmp(snd_card_name, "msm8939-tomtom9330-snd-card",
+                  sizeof("msm8939-tomtom9330-snd-card"))) {
+         ALOGI("%s: snd_card_name: %s",__func__,snd_card_name);
+         is_external_codec = true;
+     }
+}
 static void query_platform(const char *snd_card_name,
                                       char *mixer_xml_path)
 {
@@ -1193,6 +1227,7 @@
                 return NULL;
             }
             adev->snd_card = snd_card_num;
+            update_codec_type(snd_card_name);
             ALOGD("%s: Opened sound card:%d", __func__, snd_card_num);
             break;
         }
@@ -1457,11 +1492,19 @@
 
 int platform_get_pcm_device_id(audio_usecase_t usecase, int device_type)
 {
-    int device_id;
-    if (device_type == PCM_PLAYBACK)
-        device_id = pcm_device_table[usecase][0];
-    else
-        device_id = pcm_device_table[usecase][1];
+    int device_id = -1;
+
+    if (is_external_codec && is_misc_usecase(usecase)) {
+        if (device_type == PCM_PLAYBACK)
+            device_id = pcm_device_table_of_ext_codec[usecase][0];
+        else
+            device_id = pcm_device_table_of_ext_codec[usecase][1];
+    } else {
+        if (device_type == PCM_PLAYBACK)
+            device_id = pcm_device_table[usecase][0];
+        else
+            device_id = pcm_device_table[usecase][1];
+    }
     return device_id;
 }