commit 2e0395640a546ca2733b81b00d5df32fd776c2a6
author Rohit kumar <rohitkr@codeaurora.org> Mon Feb 04 16:26:33 2019 +0530
committer Rohit kumar <rohitkr@codeaurora.org> Fri Apr 12 11:17:39 2019 +0530
tree ef216fbe8278d815ae06b70874da14666b60b205
parent 799d807135717c50a3fd4a0a669f54ef3553e956

hal: Add support for Backend port specific channel map

Currently, channel map mixer control is generic for all
backend playback. Add support for backend device specific
mixer control to avoid overwrite of channel map configuration.
Also, always set proper channel map/allocation for playback
for HDMI and display port.

Change-Id: I41e3db6e07be869d82bdd3712744a5b78a707228

hal/msm8916/platform.c

diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index 3bf7628..63191a0 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -6029,7 +6029,7 @@
         my_data->current_backend_cfg[backend_idx].channels = channels;
 
         if (backend_idx == HDMI_RX_BACKEND)
-            platform_set_edid_channels_configuration(adev->platform, channels, HDMI_RX_BACKEND);
+            platform_set_edid_channels_configuration(adev->platform, channels, HDMI_RX_BACKEND, snd_device);
 
         ALOGD("%s:becf: afe: %s set to %s", __func__,
                my_data->current_backend_cfg[backend_idx].channels_mixer_ctl, channel_cnt_str);
@@ -6403,6 +6403,8 @@
 
         if (channels != my_data->current_backend_cfg[backend_idx].channels)
             channels_updated = true;
+
+        platform_set_edid_channels_configuration(adev->platform, channels, backend_idx, snd_device);
     }
 
     //check if mulitchannel clip needs to be down sampled to 48k
@@ -7064,7 +7066,7 @@
                 return -1;
         }
     }
-    ret = platform_set_channel_map(platform, channels, channel_map, snd_id);
+    ret = platform_set_channel_map(platform, channels, channel_map, snd_id, -1);
     return ret;
 }
 
@@ -7204,7 +7206,7 @@
     return ret;
 }
 
-int platform_set_channel_map(void *platform, int ch_count, char *ch_map, int snd_id)
+int platform_set_channel_map(void *platform, int ch_count, char *ch_map, int snd_id, int be_idx __unused)
 {
     struct mixer_ctl *ctl;
     char mixer_ctl_name[44] = {0}; // max length of name is 44 as defined
@@ -7366,7 +7368,7 @@
     return false;
 }
 
-int platform_set_edid_channels_configuration(void *platform, int channels, int backend_idx __unused) {
+int platform_set_edid_channels_configuration(void *platform, int channels, int backend_idx __unused, snd_device_t snd_device __unused) {
 
     struct platform_data *my_data = (struct platform_data *)platform;
     struct audio_device *adev = my_data->adev;
@@ -7399,9 +7401,9 @@
              */
             if (adev_device_cfg_ptr->use_client_dev_cfg) {
                 platform_set_channel_map(platform, adev_device_cfg_ptr->dev_cfg_params.channels,
-                                   (char *)adev_device_cfg_ptr->dev_cfg_params.channel_map, -1);
+                                   (char *)adev_device_cfg_ptr->dev_cfg_params.channel_map, -1, -1);
             } else {
-                platform_set_channel_map(platform, channel_count, info->channel_map, -1);
+                platform_set_channel_map(platform, channel_count, info->channel_map, -1, -1);
             }
 
             if (adev_device_cfg_ptr->use_client_dev_cfg) {
@@ -7420,7 +7422,7 @@
                 default_channelMap[0] = PCM_CHANNEL_FL;
                 default_channelMap[1] = PCM_CHANNEL_FR;
             }
-            platform_set_channel_map(platform,2,default_channelMap,-1);
+            platform_set_channel_map(platform, 2, default_channelMap, -1, -1);
             platform_set_channel_allocation(platform,0);
         }
     }