WIP: esp32c6: add ESP32-C6 platform support and loopback test suite

Kconfig.sof

@@ -60,9 +60,7 @@ rsource "Kconfig.xtos"
 
 rsource "src/Kconfig"
 
-if ZEPHYR_SOF_MODULE
-	rsource "Kconfig.zephyr-log"
-endif
+rsource "Kconfig.zephyr-log"
 
 menu "Debug"
 

app/CMakeLists.txt

@@ -18,11 +18,55 @@ endif()
 find_package(Zephyr HINTS $ENV{ZEPHYR_BASE})
 project(sample_sof)
 
+add_subdirectory(../zephyr sof_zephyr)
+
 target_sources(app PRIVATE
     src/main.c
+    ../src/debug/shell/esp32_shell.c
+  )
+
+target_sources_ifdef(CONFIG_USB_DEVICE_STACK_NEXT app PRIVATE
+    src/usbd_init.c
   )
 
-zephyr_library_include_directories(app PUBLIC
-    ${CMAKE_CURRENT_SOURCE_DIR}/../src/arch/xtensa/include
+target_include_directories(app PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/src
     ${CMAKE_CURRENT_SOURCE_DIR}/../src/include
+    ${CMAKE_CURRENT_SOURCE_DIR}/../zephyr/include
+    ${PROJECT_BINARY_DIR}/include/generated
   )
+
+if(CONFIG_PLATFORM_ESP32P4)
+  target_include_directories(app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../src/platform/esp32p4/include)
+elseif(CONFIG_PLATFORM_ESP32C6)
+  target_include_directories(app PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../src/platform/esp32c6/include)
+endif()
+
+target_link_libraries(app PRIVATE SOF modules_sof)
+target_link_libraries(modules_sof PRIVATE kernel)
+if(TARGET uuid_reg_h)
+  add_dependencies(app uuid_reg_h modules_sof)
+endif()
+
+if(CONFIG_XTENSA)
+  target_include_directories(app PRIVATE
+      ${CMAKE_CURRENT_SOURCE_DIR}/../src/arch/xtensa/include
+    )
+endif()
+
+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()
+
+sof_append_relative_path_definitions(app)
+
+

app/Kconfig

@@ -7,6 +7,11 @@ choice COMPILER_CODEGEN_VLIW
 endchoice
 
 source "Kconfig.zephyr"
+source "samples/subsys/usb/common/Kconfig.sample_usbd"
+
+if !ZEPHYR_SOF_MODULE
+rsource "../zephyr/Kconfig"
+endif
 
 if SOC_FAMILY_INTEL_ADSP
 	rsource "boards/intel_adsp/Kconfig.defconfig"

app/boards/esp32c6_devkitc_esp32c6_hpcore.conf

@@ -0,0 +1,68 @@
+# Target Platform & SOF Core
+CONFIG_PLATFORM_ESP32C6=y
+CONFIG_STATIC_PIPELINE=y
+CONFIG_SOF_FULL_ZEPHYR_APPLICATION=y
+CONFIG_ZEPHYR_NATIVE_DRIVERS=y
+CONFIG_BUILD_OUTPUT_BIN=y
+
+# Zephyr DAI Drivers for ESP32
+CONFIG_DAI=y
+CONFIG_DAI_ESPRESSIF_I2S=y
+CONFIG_PINCTRL=y
+CONFIG_DMA=y
+CONFIG_DMA_ESP32_MAX_DESCRIPTOR_NUM=32
+
+# Audio Processing Modules (Fixed-Point S16_LE Only - No Float / SIMD)
+CONFIG_FORMAT_S16LE=y
+CONFIG_COMP_VOLUME=y
+CONFIG_COMP_USB_AUDIO=y
+CONFIG_COMP_BT_AUDIO=n
+CONFIG_FILTER_RISCV_SIMD=n
+CONFIG_DRC_RISCV_SIMD=n
+CONFIG_EQ_IIR_RISCV_SIMD=n
+CONFIG_VOLUME_RISCV_SIMD=n
+CONFIG_COMP_DRC=n
+CONFIG_COMP_IIR=n
+CONFIG_COMP_FIR=n
+CONFIG_COMP_CROSSOVER=n
+CONFIG_COMP_DCBLOCK=n
+CONFIG_COMP_MULTIBAND_DRC=n
+CONFIG_COMP_TDFB=n
+
+# No Native USB UAC2 (ESP32-C6 uses USB-Serial/JTAG CDC-ACM)
+CONFIG_USB_DEVICE_STACK_NEXT=n
+CONFIG_USBD_AUDIO2_CLASS=n
+
+# System Resources & Memory (SRAM Budget: 512 KB)
+CONFIG_MAIN_STACK_SIZE=3072
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=3072
+CONFIG_ISR_STACK_SIZE=2048
+CONFIG_HW_STACK_PROTECTION=n
+CONFIG_HEAP_MEM_POOL_SIZE=8192
+CONFIG_TICKLESS_KERNEL=n
+CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
+
+# Logging & USB-Serial Console
+CONFIG_LOG=y
+CONFIG_LOG_DEFAULT_LEVEL=3
+CONFIG_LOG_MAX_LEVEL=4
+CONFIG_SOF_LOG_LEVEL_INF=y
+CONFIG_DAI_LOG_LEVEL_INF=y
+CONFIG_LOG_MODE_DEFERRED=y
+CONFIG_LOG_BUFFER_SIZE=2048
+CONFIG_LOG_MODE_OVERFLOW=y
+CONFIG_PRINTK=y
+CONFIG_LOG_PRINTK=n
+CONFIG_EARLY_CONSOLE=y
+
+# Interactive Shell over USB-Serial/JTAG
+CONFIG_SHELL=y
+CONFIG_SHELL_STACK_SIZE=4096
+CONFIG_SHELL_BACKENDS=y
+CONFIG_SHELL_BACKEND_SERIAL=y
+CONFIG_SHELL_PROMPT_UART="sof:~$ "
+
+# SOF Low Latency Scheduler Statistics Logging (Every 1s)
+CONFIG_SCHEDULE_LL_STATS_LOG=y
+CONFIG_SCHEDULE_LL_STATS_LOG_EVERY_OTHER_WINDOW=n
+CONFIG_SCHEDULE_LL_STATS_LOG_WINDOW_SIZE=10

app/boards/esp32c6_devkitc_esp32c6_hpcore.overlay

@@ -0,0 +1,34 @@
+#include <zephyr/dt-bindings/interrupt-controller/esp-esp32c6-intmux.h>
+
+/ {
+	chosen {
+		zephyr,console = &usb_serial;
+		zephyr,shell-uart = &usb_serial;
+	};
+
+	dai_i2s0: dai@6000c000 {
+		compatible = "espressif,esp32-dai-i2s";
+		status = "okay";
+		reg = <0x6000c000 0x1000>;
+		interrupt-parent = <&intc>;
+		interrupts = <I2S1_INTR_SOURCE IRQ_DEFAULT_PRIORITY 0>;
+		dai-index = <0>;
+		fifo-depth = <32>;
+	};
+};
+
+&dma {
+	status = "okay";
+};
+
+&usb_serial {
+	status = "okay";
+};
+
+&i2c0 {
+	status = "disabled";
+};
+
+&uart0 {
+	status = "disabled";
+};

app/boards/esp32p4_function_ev_board_esp32p4_hpcore.conf

@@ -0,0 +1,94 @@
+# Target Platform & SOF Core
+CONFIG_PLATFORM_ESP32P4=y
+CONFIG_SOF_FULL_ZEPHYR_APPLICATION=y
+CONFIG_ZEPHYR_NATIVE_DRIVERS=y
+CONFIG_STATIC_PIPELINE=y
+CONFIG_SYS_HEAP_BIG_ONLY=y
+CONFIG_BUILD_OUTPUT_BIN=y
+
+# Zephyr DAI Drivers for ESP32
+CONFIG_DAI=y
+CONFIG_DAI_ESPRESSIF_I2S=y
+CONFIG_DAI_ESPRESSIF_PDM=y
+CONFIG_PINCTRL=y
+CONFIG_DMA=y
+CONFIG_DMA_ESP32_MAX_DESCRIPTOR_NUM=64
+
+# Audio Processing Modules
+CONFIG_COMP_VOLUME=y
+CONFIG_COMP_IIR=y
+CONFIG_COMP_FIR=y
+CONFIG_COMP_DRC=y
+CONFIG_COMP_CROSSOVER=y
+CONFIG_COMP_DCBLOCK=y
+CONFIG_COMP_MULTIBAND_DRC=y
+CONFIG_COMP_TDFB=y
+CONFIG_COMP_USB_AUDIO=y
+CONFIG_COMP_BT_AUDIO=y
+CONFIG_COMP_TONE=y
+CONFIG_COMP_LEVEL_MULTIPLIER=y
+CONFIG_COMP_SEL=y
+CONFIG_COMP_MUX=y
+CONFIG_COMP_MIXER=y
+CONFIG_FILTER_RISCV_SIMD=y
+CONFIG_DRC_RISCV_SIMD=y
+CONFIG_EQ_IIR_RISCV_SIMD=y
+CONFIG_VOLUME_RISCV_SIMD=y
+CONFIG_ESP32P4_PIE_SIMD=y
+
+# USB Device Stack Next & UAC2 Class
+CONFIG_USB_DEVICE_STACK_NEXT=y
+CONFIG_CDC_ACM_SERIAL_INITIALIZE_AT_BOOT=n
+CONFIG_USBD_AUDIO2_CLASS=y
+CONFIG_UDC_ENABLE_SOF=y
+CONFIG_UDC_DWC2_DMA=n
+CONFIG_UDC_DWC2_PTI=y
+CONFIG_UDC_BUF_COUNT=64
+CONFIG_UDC_BUF_POOL_SIZE=16384
+
+# USB Device Identification
+CONFIG_SAMPLE_USBD_VID=0x303A
+CONFIG_SAMPLE_USBD_PID=0x4002
+CONFIG_SAMPLE_USBD_MANUFACTURER="Espressif"
+CONFIG_SAMPLE_USBD_PRODUCT="ESP32-P4 Dual UAC2 Audio"
+
+# System Resources & Memory
+CONFIG_MAIN_STACK_SIZE=4096
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096
+CONFIG_USBD_THREAD_STACK_SIZE=4096
+CONFIG_UDC_DWC2_STACK_SIZE=4096
+CONFIG_UDC_WORKQUEUE_STACK_SIZE=4096
+CONFIG_ISR_STACK_SIZE=4096
+CONFIG_HW_STACK_PROTECTION=n
+CONFIG_HEAP_MEM_POOL_SIZE=16384
+CONFIG_TICKLESS_KERNEL=n
+CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
+
+# Logging & UART Console
+CONFIG_LOG=y
+CONFIG_LOG_DEFAULT_LEVEL=3
+CONFIG_LOG_MAX_LEVEL=4
+CONFIG_SOF_LOG_LEVEL_INF=y
+CONFIG_DAI_LOG_LEVEL_INF=y
+CONFIG_USBD_UAC2_LOG_LEVEL_INF=y
+CONFIG_UDC_DRIVER_LOG_LEVEL_INF=y
+CONFIG_LOG_MODE_DEFERRED=y
+CONFIG_LOG_BUFFER_SIZE=4096
+CONFIG_LOG_MODE_OVERFLOW=y
+CONFIG_LOG_BACKEND_UART=y
+CONFIG_SHELL_LOG_BACKEND=y
+CONFIG_PRINTK=y
+CONFIG_LOG_PRINTK=n
+CONFIG_EARLY_CONSOLE=y
+
+# Interactive Shell
+CONFIG_SHELL=y
+CONFIG_SHELL_STACK_SIZE=8192
+CONFIG_SHELL_BACKENDS=y
+CONFIG_SHELL_BACKEND_SERIAL=y
+CONFIG_SHELL_PROMPT_UART="sof:~$ "
+
+# SOF Low Latency Scheduler Statistics Logging (Every 1s)
+CONFIG_SCHEDULE_LL_STATS_LOG=y
+CONFIG_SCHEDULE_LL_STATS_LOG_EVERY_OTHER_WINDOW=n
+CONFIG_SCHEDULE_LL_STATS_LOG_WINDOW_SIZE=10