From de41202f8fea84a6d454543d7d182d2f3e7e6d15 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Wed, 15 Apr 2020 13:23:35 +0100
Subject: [PATCH] zephyr: build: Add initial build support for SOF application.

Builds an initial Zephyr SOF audio module. This will be the starting
point for the porting work.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
---
 zephyr/CMakeLists.txt | 263 ++++++++++++++++++++++++++++++++++++++++++
 zephyr/module.yml     |   2 +
 2 files changed, 265 insertions(+)
 create mode 100644 zephyr/CMakeLists.txt
 create mode 100644 zephyr/module.yml

diff --git a/zephyr/CMakeLists.txt b/zephyr/CMakeLists.txt
new file mode 100644
index 000000000..981d10c96
--- /dev/null
+++ b/zephyr/CMakeLists.txt
@@ -0,0 +1,263 @@
+# This is still WIP - Not fully validated on any platform.
+
+if(CONFIG_SOF)
+
+# Appends literal with path of the source file relative to the project root
+# It is useful if sources in given target need deterministic relative path
+# to the actually compiled file.
+# __FILE is not always suitable as C standard states that __FILE__ expands to
+# input file name, that usually is absolute path what will cause f.e. .rodata
+# size to be dependent on where project is physically located on the disk.
+function(sof_append_relative_path_definitions target)
+	get_target_property(sources ${target} SOURCES)
+	foreach(src ${sources})
+		get_filename_component(ABS_PATH ${src} ABSOLUTE)
+		file(RELATIVE_PATH rel ${PROJECT_SOURCE_DIR} ${ABS_PATH})
+		set_property(
+			SOURCE ${src}
+			APPEND
+			PROPERTY COMPILE_DEFINITIONS
+			RELATIVE_FILE="${rel}")
+	endforeach()
+endfunction()
+
+# Initial SOF module will contain
+#
+# 1. Application logic - pipeline, audio components, IPC processing, topology
+# 2. IP drivers - SSP, DMIC, PM, IPC will transition to Zephyr directly over
+#                 time and be removed from the SOF repo.
+# 3. Platform IP - PM, init, clocks, IRQs will transition directly to Zephyr
+#                  over time and be removed from SOF repo.
+# 4. RTOS logic - scheduler, allocator, notifier - as with 2 & 3.
+zephyr_interface_library_named(SOF)
+
+# default SOF includes
+target_include_directories(SOF INTERFACE ../src/include)
+target_include_directories(SOF INTERFACE ../src/arch/xtensa/include)
+
+# SOF module init
+zephyr_library_named(modules_sof)
+zephyr_include_directories(
+	include
+)
+
+# SOC level sources
+# Files that are commented may not be needed.
+
+# BYT, CHT, BSW
+if (CONFIG_SOC_SERIES_INTEL_BAYTRAIL)
+	zephyr_library_sources(
+		../src/drivers/intel/baytrail/ipc.c
+		#../src/drivers/intel/baytrail/interrupt.c
+		../src/drivers/intel/baytrail/timer.c
+		../src/drivers/intel/baytrail/ssp.c
+		 ../src/drivers/intel/pmc-ipc.c
+	)
+
+	target_include_directories(SOF INTERFACE ../src/platform/baytrail/include)
+endif()
+
+# HSW, BDW
+if (CONFIG_SOC_SERIES_INTEL_BROADWELL)
+	zephyr_library_sources(
+		../src/drivers/intel/haswell/ipc.c
+		#../src/drivers/intel/haswell/interrupt.c
+		../src/drivers/intel/haswell/timer.c
+		../src/drivers/intel/haswell/ssp.c
+	)
+
+	target_include_directories(SOF INTERFACE ../src/platform/haswell/include)
+endif()
+
+# APL, KBL, SKL
+if (CONFIG_SOC_SERIES_INTEL_CAVS_V15)
+	zephyr_library_sources(
+		../src/drivers/intel/cavs/hda-dma.c
+		../src/drivers/intel/cavs/hda.c
+		../src/drivers/intel/cavs/ipc.c
+		../src/drivers/intel/cavs/dmic.c
+		#../src/drivers/intel/cavs/interrupt.c
+		#../src/drivers/intel/cavs/idc.c
+		../src/drivers/intel/cavs/timer.c
+		../src/drivers/intel/cavs/ssp.c
+		../src/drivers/intel/cavs/mn.c
+	)
+
+	# CAVS15 include seems to be set in Zephyr. TODO also set common dir.
+	zephyr_include_directories(../../../../zephyr/soc/xtensa/intel_adsp/common/include)
+endif()
+
+# CNL
+if (CONFIG_SOC_SERIES_INTEL_CAVS_V18)
+	zephyr_library_sources(
+		../src/drivers/intel/cavs/hda-dma.c
+		../src/drivers/intel/cavs/hda.c
+		../src/drivers/intel/cavs/ipc.c
+		#../src/drivers/intel/cavs/sue-ipc.c
+		../src/drivers/intel/cavs/dmic.c
+		# ../src/drivers/intel/cavs/interrupt.c
+		../src/drivers/intel/cavs/idc.c
+		../src/drivers/intel/cavs/timer.c
+		#../src/drivers/intel/cavs/sue-iomux.c
+		../src/drivers/intel/cavs/ssp.c
+		../src/drivers/intel/cavs/mn.c
+		../src/drivers/intel/cavs/alh.c
+	)
+
+endif()
+
+# ICL
+if (CONFIG_SOC_SERIES_INTEL_CAVS_V20)
+	zephyr_library_sources(
+		../src/drivers/intel/cavs/hda-dma.c
+		../src/drivers/intel/cavs/hda.c
+		../src/drivers/intel/cavs/ipc.c
+		../src/drivers/intel/cavs/dmic.c
+		#../src/drivers/intel/cavs/interrupt.c
+		../src/drivers/intel/cavs/idc.c
+		../src/drivers/intel/cavs/timer.c
+		../src/drivers/intel/cavs/ssp.c
+		../src/drivers/intel/cavs/mn.c
+		../src/drivers/intel/cavs/alh.c
+	)
+endif()
+
+# TGL
+if (CONFIG_SOC_SERIES_INTEL_CAVS_V25)
+	zephyr_library_sources(
+		../src/drivers/intel/cavs/hda-dma.c
+		../src/drivers/intel/cavs/hda.c
+		../src/drivers/intel/cavs/ipc.c
+		../src/drivers/intel/cavs/dmic.c
+		#../src/drivers/intel/cavs/interrupt.c
+		../src/drivers/intel/cavs/idc.c
+		../src/drivers/intel/cavs/timer.c
+		../src/drivers/intel/cavs/ssp.c
+		../src/drivers/intel/cavs/mn.c
+		../src/drivers/intel/cavs/alh.c
+	)
+endif()
+
+# IMX8
+if (CONFIG_SOC_SERIES_NXP_IMX8)
+	zephyr_library_sources(
+		#../src/drivers/imx/sdma.c
+		#../src/drivers/imx/edma.c
+		#../src/drivers/imx/sai.c
+		#../src/drivers/imx/ipc.c
+		#../src/drivers/imx/esai.c
+		#../src/drivers/imx/interrupt.c
+		#../src/drivers/imx/timer.c
+	)
+endif()
+
+# Files used on all platforms.
+# Commented files will be added/removed as integration dictates.
+zephyr_library_sources(
+	#../src/trace/dma-trace.c
+	#../src/trace/trace.c
+	#../src/drivers/dw/ssi-spi.c
+	#../src/drivers/dw/gpio.c
+	../src/drivers/dw/dma.c
+	#../src/drivers/interrupt.c
+	#../src/drivers/generic/dummy-dma.c
+	#../src/ipc/dma-copy.c
+	../src/ipc/ipc.c
+	../src/ipc/handler.c
+	#../src/ipc/probe_support.c
+	../src/ipc/user_abi_version.c
+	../src/ipc/ipc-host-ptable.c
+	../src/ipc/cc_version.c
+	#../src/debug/gdb/gdb.c
+	#../src/debug/gdb/ringbuffer.c
+	../src/debug/panic.c
+	../src/spinlock.c
+	../src/math/decibels.c
+	../src/math/numbers.c
+	../src/math/trig.c
+	#../src/init/init.c
+	../src/schedule/task.c
+	../src/schedule/timer_domain.c
+	../src/schedule/schedule.c
+	../src/schedule/edf_schedule.c
+	../src/schedule/dma_single_chan_domain.c
+	../src/schedule/dma_multi_chan_domain.c
+	../src/schedule/ll_schedule.c
+	../src/lib/clk.c
+	../src/lib/notifier.c
+	../src/lib/lib.c
+	../src/lib/pm_runtime.c
+	../src/lib/agent.c
+	#../src/lib/alloc.c
+	../src/lib/wait.c
+	../src/lib/dma.c
+	../src/lib/dai.c
+	../src/audio/kpb.c
+	../src/audio/pipeline_static.c
+	../src/audio/selector/selector_generic.c
+	../src/audio/selector/selector.c
+	../src/audio/channel_map.c
+	../src/audio/switch.c
+	../src/audio/src/src_hifi2ep.c
+	../src/audio/src/src_generic.c
+	../src/audio/src/src_hifi3.c
+	../src/audio/src/src.c
+	../src/audio/pcm_converter/pcm_converter_hifi3.c
+	../src/audio/pcm_converter/pcm_converter_generic.c
+	../src/audio/volume/volume_hifi3.c
+	../src/audio/volume/volume_generic.c
+	../src/audio/volume/volume.c
+	../src/audio/mixer.c
+	../src/audio/tone.c
+	../src/audio/eq_fir/fir_hifi3.c
+	../src/audio/eq_fir/fir_hifi2ep.c
+	../src/audio/eq_fir/eq_fir.c
+	../src/audio/eq_fir/fir.c
+	../src/audio/detect_test.c
+	../src/audio/host.c
+	../src/audio/asrc/asrc.c
+	../src/audio/asrc/asrc_farrow_hifi3.c
+	../src/audio/asrc/asrc_farrow.c
+	../src/audio/asrc/asrc_farrow_generic.c
+	../src/audio/dcblock/dcblock_generic.c
+	../src/audio/dcblock/dcblock.c
+	../src/audio/mux/mux.c
+	../src/audio/mux/mux_generic.c
+	../src/audio/eq_iir/iir_generic.c
+	../src/audio/eq_iir/iir_hifi3.c
+	../src/audio/eq_iir/iir.c
+	../src/audio/eq_iir/eq_iir.c
+	../src/audio/buffer.c
+	../src/audio/component.c
+	../src/audio/dai.c
+	../src/audio/pipeline.c
+	#../src/probe/probe.c
+)
+
+zephyr_library_link_libraries(SOF)
+target_link_libraries(SOF INTERFACE zephyr_interface)
+
+# Setup SOF directories
+set(SOF_ROOT_SOURCE_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+set(SOF_ROOT_BINARY_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+set(GENERATED_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+file(MAKE_DIRECTORY ${GENERATED_DIRECTORY}/include)
+
+# generated files
+set(VERSION_H_PATH ${GENERATED_DIRECTORY}/include/version.h)
+set(DOT_CONFIG_PATH ${GENERATED_DIRECTORY}/.config)
+set(CONFIG_H_PATH ${GENERATED_DIRECTORY}/include/config.h)
+
+# create version.h
+include(../scripts/cmake/version.cmake)
+
+# SOF uses GNU C99 extensions. TODO other flags required ?
+target_compile_options(SOF INTERFACE -std=gnu99 -fno-inline-functions)
+
+# Toolchain info
+add_definitions(-DXCC_TOOLS_VERSION="${ZEPHYR_TOOLCHAIN_VARIANT}" -DCC_OPTIMIZE_FLAGS="${OPTIMIZATION_FLAG}")
+
+# Create Trace realtive file paths
+sof_append_relative_path_definitions(modules_sof)
+endif()
+
diff --git a/zephyr/module.yml b/zephyr/module.yml
new file mode 100644
index 000000000..7ac5323a3
--- /dev/null
+++ b/zephyr/module.yml
@@ -0,0 +1,2 @@
+build:
+        cmake: ./zephyr