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>
diff --git a/soc/Kbuild b/soc/Kbuild
new file mode 100644
index 0000000..45b77e9
--- /dev/null
+++ b/soc/Kbuild
@@ -0,0 +1,121 @@
+# We can build either as part of a standalone Kernel build or as
+# an external module. Determine which mechanism is being used
+KERNEL_BUILD := 0
+
+
+ifeq ($(KERNEL_BUILD), 0)
+ # These are configurable via Kconfig for kernel-based builds
+ # Need to explicitly configure for Android-based builds
+ ifeq ($(CONFIG_ARCH_SDM845), y)
+ include $(AUDIO_ROOT)/config/sdm845auto.conf
+ export
+ endif
+ ifeq ($(CONFIG_ARCH_SDM670), y)
+ include $(AUDIO_ROOT)/config/sdm670auto.conf
+ export
+ endif
+endif
+
+
+# As per target team, build is done as follows:
+# Defconfig : build with default flags
+# Slub : defconfig + CONFIG_SLUB_DEBUG := y +
+# CONFIG_SLUB_DEBUG_ON := y + CONFIG_PAGE_POISONING := y
+# Perf : Using appropriate msmXXXX-perf_defconfig
+#
+# Shipment builds (user variants) should not have any debug feature
+# enabled. This is identified using 'TARGET_BUILD_VARIANT'. Slub builds
+# are identified using the CONFIG_SLUB_DEBUG_ON configuration. Since
+# there is no other way to identify defconfig builds, QTI internal
+# representation of perf builds (identified using the string 'perf'),
+# is used to identify if the build is a slub or defconfig one. This
+# way no critical debug feature will be enabled for perf and shipment
+# builds. Other OEMs are also protected using the TARGET_BUILD_VARIANT
+# config.
+
+############ UAPI ############
+UAPI_DIR := uapi
+UAPI_INC := -I$(AUDIO_ROOT)/include/$(UAPI_DIR)
+
+############ COMMON ############
+COMMON_DIR := include
+COMMON_INC := -I$(AUDIO_ROOT)/$(COMMON_DIR)
+
+############ SoC Modules ############
+
+# for pinctrl WCD driver
+ifeq ($(CONFIG_PINCTRL_WCD), m)
+ PINCTRL_WCD_OBJS += pinctrl-wcd.o
+endif
+
+# for pinctrl LPI driver
+ifeq ($(CONFIG_PINCTRL_LPI), m)
+ PINCTRL_LPI_OBJS += pinctrl-lpi.o
+endif
+
+# for soundwire driver
+ifeq ($(CONFIG_SOUNDWIRE_WCD_CTRL), m)
+ SWR_CTRL_OBJS += swr-wcd-ctrl.o
+endif
+
+ifeq ($(CONFIG_SOUNDWIRE), m)
+ SWR_OBJS += regmap-swr.o
+ SWR_OBJS += soundwire.o
+endif
+
+LINUX_INC += -Iinclude/linux
+
+INCS := $(COMMON_INC) \
+ $(UAPI_INC)
+
+ifeq ($(CONFIG_ARCH_SDM845), y)
+INCS += -include $(AUDIO_ROOT)/config/sdm845autoconf.h
+endif
+ifeq ($(CONFIG_ARCH_SDM670), y)
+INCS += -include $(AUDIO_ROOT)/config/sdm670autoconf.h
+endif
+
+EXTRA_CFLAGS += $(INCS)
+
+
+CDEFINES += -DANI_LITTLE_BYTE_ENDIAN \
+ -DANI_LITTLE_BIT_ENDIAN \
+ -DDOT11F_LITTLE_ENDIAN_HOST \
+ -DANI_COMPILER_TYPE_GCC \
+ -DANI_OS_TYPE_ANDROID=6 \
+ -DPTT_SOCK_SVC_ENABLE \
+ -Wall\
+ -Werror\
+ -D__linux__
+
+KBUILD_CPPFLAGS += $(CDEFINES)
+
+KBUILD_EXTRA_SYMBOLS +=$(OUT)/obj/vendor/qcom/opensource/audio-kernel/dsp/Module.symvers
+# Currently, for versions of gcc which support it, the kernel Makefile
+# is disabling the maybe-uninitialized warning. Re-enable it for the
+# AUDIO driver. Note that we must use EXTRA_CFLAGS here so that it
+# will override the kernel settings.
+ifeq ($(call cc-option-yn, -Wmaybe-uninitialized),y)
+EXTRA_CFLAGS += -Wmaybe-uninitialized
+endif
+#EXTRA_CFLAGS += -Wmissing-prototypes
+
+ifeq ($(call cc-option-yn, -Wheader-guard),y)
+EXTRA_CFLAGS += -Wheader-guard
+endif
+
+# Module information used by KBuild framework
+obj-$(CONFIG_PINCTRL_WCD) += pinctrl_wcd_dlkm.o
+pinctrl_wcd_dlkm-y := $(PINCTRL_WCD_OBJS)
+
+obj-$(CONFIG_PINCTRL_LPI) += pinctrl_lpi_dlkm.o
+pinctrl_lpi_dlkm-y := $(PINCTRL_LPI_OBJS)
+
+obj-$(CONFIG_SOUNDWIRE) += swr_dlkm.o
+swr_dlkm-y := $(SWR_OBJS)
+
+obj-$(CONFIG_SOUNDWIRE_WCD_CTRL) += swr_ctrl_dlkm.o
+swr_ctrl_dlkm-y := $(SWR_CTRL_OBJS)
+
+# inject some build related information
+DEFINES += -DBUILD_TIMESTAMP=\"$(shell date -u +'%Y-%m-%dT%H:%M:%SZ')\"