Audio: DLKM support for all audio modules

Switch to DLKM for all audio kernel modules.

Change-Id: I6a96023a21f655f873531af9ace81f2b01eb0f58
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>

asoc/Android.mk

@@ -0,0 +1,73 @@
+# Android makefile for audio kernel modules
+
+# Assume no targets will be supported
+
+# Check if this driver needs be built for current target
+ifeq ($(call is-board-platform,sdm845),true)
+TARGET := sdm845
+AUDIO_SELECT  := CONFIG_SND_SOC_SDM845=m
+endif
+
+ifeq ($(call is-board-platform,sdm670),true)
+TARGET := sdm670
+AUDIO_SELECT  := CONFIG_SND_SOC_SDM670=m
+endif
+
+AUDIO_CHIPSET := audio
+# Build/Package only in case of supported target
+ifeq ($(call is-board-platform-in-list,sdm845 sdm670),true)
+
+LOCAL_PATH := $(call my-dir)
+
+# This makefile is only for DLKM
+ifneq ($(findstring vendor,$(LOCAL_PATH)),)
+
+ifneq ($(findstring opensource,$(LOCAL_PATH)),)
+	AUDIO_BLD_DIR := $(ANDROID_BUILD_TOP)/vendor/qcom/opensource/audio-kernel
+endif # opensource
+
+DLKM_DIR := $(TOP)/device/qcom/common/dlkm
+
+# Build audio.ko as $(AUDIO_CHIPSET)_audio.ko
+###########################################################
+# This is set once per LOCAL_PATH, not per (kernel) module
+KBUILD_OPTIONS := AUDIO_ROOT=$(AUDIO_BLD_DIR)
+
+# We are actually building audio.ko here, as per the
+# requirement we are specifying <chipset>_audio.ko as LOCAL_MODULE.
+# This means we need to rename the module to <chipset>_audio.ko
+# after audio.ko is built.
+KBUILD_OPTIONS += MODNAME=platform_dlkm
+KBUILD_OPTIONS += BOARD_PLATFORM=$(TARGET_BOARD_PLATFORM)
+KBUILD_OPTIONS += $(AUDIO_SELECT)
+
+###########################################################
+include $(CLEAR_VARS)
+LOCAL_MODULE              := $(AUDIO_CHIPSET)_platform.ko
+LOCAL_MODULE_KBUILD_NAME  := platform_dlkm.ko
+LOCAL_MODULE_TAGS         := optional
+LOCAL_MODULE_DEBUG_ENABLE := true
+LOCAL_MODULE_PATH         := $(KERNEL_MODULES_OUT)
+include $(DLKM_DIR)/AndroidKernelModule.mk
+###########################################################
+ifeq ($(call is-board-platform,sdm670),true)
+include $(CLEAR_VARS)
+LOCAL_MODULE              := $(AUDIO_CHIPSET)_cpe_lsm.ko
+LOCAL_MODULE_KBUILD_NAME  := cpe_lsm_dlkm.ko
+LOCAL_MODULE_TAGS         := optional
+LOCAL_MODULE_DEBUG_ENABLE := true
+LOCAL_MODULE_PATH         := $(KERNEL_MODULES_OUT)
+include $(DLKM_DIR)/AndroidKernelModule.mk
+endif
+###########################################################
+include $(CLEAR_VARS)
+LOCAL_MODULE              := $(AUDIO_CHIPSET)_machine_$(TARGET).ko
+LOCAL_MODULE_KBUILD_NAME  := machine_dlkm.ko
+LOCAL_MODULE_TAGS         := optional
+LOCAL_MODULE_DEBUG_ENABLE := true
+LOCAL_MODULE_PATH         := $(KERNEL_MODULES_OUT)
+include $(DLKM_DIR)/AndroidKernelModule.mk
+###########################################################
+
+endif # DLKM check
+endif # supported target check