add cmake for saml2x

hw/bsp/samd21/family.cmake

@@ -26,9 +26,7 @@ function(add_board_target BOARD_TARGET)
     message(FATAL_ERROR "LD_FILE_${CMAKE_C_COMPILER_ID} not defined")
   endif ()
 
-  if (NOT DEFINED STARTUP_FILE_GNU)
+  set(STARTUP_FILE_GNU ${SDK_DIR}/gcc/gcc/startup_samd21.c)
-    set(STARTUP_FILE_GNU ${SDK_DIR}/gcc/gcc/startup_samd21.c)
-  endif ()
   set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
 
   add_library(${BOARD_TARGET} STATIC
@@ -50,7 +48,9 @@ function(add_board_target BOARD_TARGET)
     ${SDK_DIR}/hri
     ${SDK_DIR}/CMSIS/Include
     )
-  target_compile_definitions(${BOARD_TARGET} PUBLIC CONF_DFLL_OVERWRITE_CALIBRATION=0)
+  target_compile_definitions(${BOARD_TARGET} PUBLIC
+    CONF_DFLL_OVERWRITE_CALIBRATION=0
+    )
 
   update_board(${BOARD_TARGET})
 

hw/bsp/samd21/family.mk

@@ -25,14 +25,14 @@ SRC_C += \
 	src/portable/microchip/samd/dcd_samd.c \
 	${SDK_DIR}/gcc/gcc/startup_samd21.c \
 	${SDK_DIR}/gcc/system_samd21.c \
+	${SDK_DIR}/hal/src/hal_atomic.c \
 	${SDK_DIR}/hpl/gclk/hpl_gclk.c \
 	${SDK_DIR}/hpl/pm/hpl_pm.c \
 	${SDK_DIR}/hpl/sysctrl/hpl_sysctrl.c \
-	${SDK_DIR}/hal/src/hal_atomic.c
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/${SDK_DIR}/ \
+	$(TOP)/${SDK_DIR} \
 	$(TOP)/${SDK_DIR}/config \
 	$(TOP)/${SDK_DIR}/include \
 	$(TOP)/${SDK_DIR}/hal/include \
@@ -40,7 +40,7 @@ INC += \
 	$(TOP)/${SDK_DIR}/hpl/pm/ \
 	$(TOP)/${SDK_DIR}/hpl/port \
 	$(TOP)/${SDK_DIR}/hri \
-	$(TOP)/${SDK_DIR}/CMSIS/Include
+	$(TOP)/lib/CMSIS_5/CMSIS/Core/Include \
 
 # flash using bossac at least version 1.8
 # can be found in arduino15/packages/arduino/tools/bossac/

hw/bsp/saml2x/boards/atsaml21_xpro/board.cmake

@@ -0,0 +1,9 @@
+set(MCU_VARIANT saml21)
+set(JLINK_DEVICE ATSAML21J18)
+set(LD_FILE_GNU ${CMAKE_CURRENT_LIST_DIR}/saml21j18b_flash.ld)
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    __SAML21J18B__
+    )
+endfunction()

hw/bsp/saml2x/boards/atsaml21_xpro/board.mk

@@ -1,6 +1,6 @@
-CFLAGS += -D__SAML21J18B__ -DCFG_EXAMPLE_VIDEO_READONLY
+MCU_VARIANT = saml21
 
-SAML_VARIANT = saml21
+CFLAGS += -D__SAML21J18B__
 
 # All source paths should be relative to the top level.
 LD_FILE = $(BOARD_PATH)/saml21j18b_flash.ld

hw/bsp/saml2x/boards/atsaml21_xpro/saml21j18b_flash.ld

@@ -31,6 +31,8 @@ OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
 SEARCH_DIR(.)
 
+ENTRY(Reset_Handler)
+
 /* Memory Spaces Definitions */
 MEMORY
 {

hw/bsp/saml2x/boards/saml22_feather/board.cmake

@@ -0,0 +1,9 @@
+set(MCU_VARIANT saml22)
+set(JLINK_DEVICE ATSAML22J18)
+set(LD_FILE_GNU ${CMAKE_CURRENT_LIST_DIR}/${BOARD}.ld)
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    __SAML22J18A__
+    )
+endfunction()

hw/bsp/saml2x/boards/saml22_feather/board.mk

@@ -1,6 +1,6 @@
-CFLAGS += -D__SAML22J18A__ -DCFG_EXAMPLE_VIDEO_READONLY
+MCU_VARIANT = saml22
 
-SAML_VARIANT = saml22
+CFLAGS += -D__SAML22J18A__
 
 # All source paths should be relative to the top level.
 LD_FILE = $(BOARD_PATH)/$(BOARD).ld

hw/bsp/saml2x/boards/saml22_feather/saml22_feather.ld

@@ -32,6 +32,8 @@ OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
 SEARCH_DIR(.)
 
+ENTRY(Reset_Handler)
+
 /* Memory Spaces Definitions */
 MEMORY
 {
@@ -42,8 +44,6 @@ MEMORY
 /* The stack size used by the application. NOTE: you need to adjust according to your application. */
 STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x2000;
 
-ENTRY(Reset_Handler)
-
 /* Section Definitions */
 SECTIONS
 {

hw/bsp/saml2x/boards/sensorwatch_m0/board.cmake

@@ -0,0 +1,9 @@
+set(MCU_VARIANT saml22)
+set(JLINK_DEVICE ATSAML21J18)
+set(LD_FILE_GNU ${CMAKE_CURRENT_LIST_DIR}/${BOARD}.ld)
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    __SAML22J18A__
+    )
+endfunction()

hw/bsp/saml2x/boards/sensorwatch_m0/board.mk

@@ -1,6 +1,6 @@
-CFLAGS += -D__SAML22J18A__ -DCFG_EXAMPLE_VIDEO_READONLY
+MCU_VARIANT = saml22
 
-SAML_VARIANT = saml22
+CFLAGS += -D__SAML22J18A__
 
 # All source paths should be relative to the top level.
 LD_FILE = $(BOARD_PATH)/$(BOARD).ld

hw/bsp/saml2x/boards/sensorwatch_m0/sensorwatch_m0.ld

@@ -32,6 +32,8 @@ OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)
 SEARCH_DIR(.)
 
+ENTRY(Reset_Handler)
+
 /* Memory Spaces Definitions */
 MEMORY
 {
@@ -42,8 +44,6 @@ MEMORY
 /* The stack size used by the application. NOTE: you need to adjust according to your application. */
 STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x2000;
 
-ENTRY(Reset_Handler)
-
 /* Section Definitions */
 SECTIONS
 {

hw/bsp/saml2x/family.c

@@ -25,19 +25,29 @@
  */
 
 #include "sam.h"
-#include "bsp/board_api.h"
+
-#include "board.h"
+// Suppress warning caused by mcu driver
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#endif
 
 #include "hal/include/hal_gpio.h"
 #include "hal/include/hal_init.h"
 #include "hpl/gclk/hpl_gclk_base.h"
 #include "hpl_mclk_config.h"
 
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+#include "bsp/board_api.h"
+#include "board.h"
+
 //--------------------------------------------------------------------+
 // Forward USB interrupt events to TinyUSB IRQ Handler
 //--------------------------------------------------------------------+
-void USB_Handler(void)
+void USB_Handler(void) {
-{
   tud_int_handler(0);
 }
 
@@ -50,8 +60,7 @@ void USB_Handler(void)
 /* Not referenced GCLKs, initialized last */
 #define _GCLK_INIT_LAST 0x0000001F
 
-void board_init(void)
+void board_init(void) {
-{
   // Clock init ( follow hpl_init.c )
   hri_nvmctrl_set_CTRLB_RWS_bf(NVMCTRL, CONF_NVM_WAIT_STATE);
 
@@ -84,7 +93,7 @@ void board_init(void)
   gpio_set_pin_direction(BUTTON_PIN, GPIO_DIRECTION_IN);
   gpio_set_pin_pull_mode(BUTTON_PIN, BUTTON_STATE_ACTIVE ? GPIO_PULL_DOWN : GPIO_PULL_UP);
 
-#if CFG_TUSB_OS  == OPT_OS_FREERTOS
+#if CFG_TUSB_OS == OPT_OS_FREERTOS
   // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
   NVIC_SetPriority(USB_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY);
 #endif
@@ -121,43 +130,39 @@ void board_init(void)
 // Board porting API
 //--------------------------------------------------------------------+
 
-void board_led_write(bool state)
+void board_led_write(bool state) {
-{
   gpio_set_pin_level(LED_PIN, state);
 }
 
-uint32_t board_button_read(void)
+uint32_t board_button_read(void) {
-{
   // button is active low
   return gpio_get_pin_level(BUTTON_PIN) ? 0 : 1;
 }
 
-int board_uart_read(uint8_t* buf, int len)
+int board_uart_read(uint8_t* buf, int len) {
-{
+  (void) buf;
-  (void) buf; (void) len;
+  (void) len;
   return 0;
 }
 
-int board_uart_write(void const * buf, int len)
+int board_uart_write(void const* buf, int len) {
-{
+  (void) buf;
-  (void) buf; (void) len;
+  (void) len;
   return 0;
 }
 
-#if CFG_TUSB_OS  == OPT_OS_NONE
+#if CFG_TUSB_OS == OPT_OS_NONE
 volatile uint32_t system_ticks = 0;
-
+void SysTick_Handler(void) {
-void SysTick_Handler (void)
-{
   system_ticks++;
 }
 
-uint32_t board_millis(void)
+uint32_t board_millis(void) {
-{
   return system_ticks;
 }
+
 #endif
-void _init(void)
+
-{
+void _init(void) {
 
 }

hw/bsp/saml2x/family.cmake

@@ -0,0 +1,116 @@
+include_guard()
+
+# include board specific
+include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
+
+set(SDK_DIR ${TOP}/hw/mcu/microchip/${MCU_VARIANT})
+set(CMSIS_5 ${TOP}/lib/CMSIS_5)
+
+# toolchain set up
+set(CMAKE_SYSTEM_PROCESSOR cortex-m0plus CACHE INTERNAL "System Processor")
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/examples/build_system/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+
+set(FAMILY_MCUS SAML21 SAML22 CACHE INTERNAL "")
+set(OPENOCD_OPTION "-f interface/cmsis-dap.cfg -c \"transport select swd\" -f target/at91samdXX.cfg")
+
+#------------------------------------
+# BOARD_TARGET
+#------------------------------------
+# only need to be built ONCE for all examples
+function(add_board_target BOARD_TARGET)
+  if (TARGET ${BOARD_TARGET})
+    return()
+  endif ()
+
+  set(LD_FILE_Clang ${LD_FILE_GNU})
+  if (NOT DEFINED LD_FILE_${CMAKE_C_COMPILER_ID})
+    message(FATAL_ERROR "LD_FILE_${CMAKE_C_COMPILER_ID} not defined")
+  endif ()
+
+  set(STARTUP_FILE_GNU ${SDK_DIR}/gcc/gcc/startup_${MCU_VARIANT}.c)
+  set(STARTUP_FILE_Clang ${STARTUP_FILE_GNU})
+
+  add_library(${BOARD_TARGET} STATIC
+    ${SDK_DIR}/gcc/system_${MCU_VARIANT}.c
+    ${SDK_DIR}/hal/src/hal_atomic.c
+    ${SDK_DIR}/hpl/gclk/hpl_gclk.c
+    ${SDK_DIR}/hpl/mclk/hpl_mclk.c
+    ${SDK_DIR}/hpl/osc32kctrl/hpl_osc32kctrl.c
+    ${SDK_DIR}/hpl/oscctrl/hpl_oscctrl.c
+    ${SDK_DIR}/hpl/pm/hpl_pm.c
+    ${STARTUP_FILE_${CMAKE_C_COMPILER_ID}}
+    )
+  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${SDK_DIR}
+    ${SDK_DIR}/config
+    ${SDK_DIR}/include
+    ${SDK_DIR}/hal/include
+    ${SDK_DIR}/hal/utils/include
+    ${SDK_DIR}/hpl/pm
+    ${SDK_DIR}/hpl/port
+    ${SDK_DIR}/hri
+    ${CMSIS_5}/CMSIS/Core/Include
+    )
+  target_compile_definitions(${BOARD_TARGET} PUBLIC
+    CONF_OSC32K_CALIB_ENABLE=0
+    CFG_EXAMPLE_VIDEO_READONLY
+    )
+
+  update_board(${BOARD_TARGET})
+
+  if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_GNU}"
+      -nostartfiles
+      --specs=nosys.specs --specs=nano.specs
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_Clang}"
+      )
+  elseif (CMAKE_C_COMPILER_ID STREQUAL "IAR")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--config=${LD_FILE_IAR}"
+      )
+  endif ()
+endfunction()
+
+
+#------------------------------------
+# Functions
+#------------------------------------
+function(family_configure_example TARGET RTOS)
+  family_configure_common(${TARGET} ${RTOS})
+
+  # Board target
+  add_board_target(board_${BOARD})
+
+  #---------- Port Specific ----------
+  # These files are built for each example since it depends on example's tusb_config.h
+  target_sources(${TARGET} PUBLIC
+    # BSP
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
+    )
+  target_include_directories(${TARGET} PUBLIC
+    # family, hw, board
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../../
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
+    )
+
+  # Add TinyUSB target and port source
+  family_add_tinyusb(${TARGET} OPT_MCU_SAML22 ${RTOS})
+  target_sources(${TARGET}-tinyusb PUBLIC
+    ${TOP}/src/portable/microchip/samd/dcd_samd.c
+    )
+  target_link_libraries(${TARGET}-tinyusb PUBLIC board_${BOARD})
+
+  # Link dependencies
+  target_link_libraries(${TARGET} PUBLIC board_${BOARD} ${TARGET}-tinyusb)
+
+  # Flashing
+  family_add_bin_hex(${TARGET})
+  family_flash_jlink(${TARGET})
+  #family_flash_openocd(${TARGET} ${OPENOCD_OPTION})
+endfunction()

hw/bsp/saml2x/family.mk

@@ -1,14 +1,14 @@
 UF2_FAMILY_ID = 0x68ed2b88
-DEPS_SUBMODULES += lib/CMSIS_5 hw/mcu/microchip
+SDK_DIR = hw/mcu/microchip/$(MCU_VARIANT)
-MCU_DIR = hw/mcu/microchip/$(SAML_VARIANT)
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 CPU_CORE ?= cortex-m0plus
 
 CFLAGS += \
-  -nostdlib -nostartfiles \
+  -flto \
   -DCONF_OSC32K_CALIB_ENABLE=0 \
-  -DCFG_TUSB_MCU=OPT_MCU_SAML22
+  -DCFG_TUSB_MCU=OPT_MCU_SAML22 \
+  -DCFG_EXAMPLE_VIDEO_READONLY \
 
 # suppress warning caused by vendor mcu driver
 CFLAGS += -Wno-error=redundant-decls
@@ -16,29 +16,32 @@ CFLAGS += -Wno-error=redundant-decls
 # SAM driver is flooded with -Wcast-qual which slow down complication significantly
 CFLAGS_SKIP += -Wcast-qual
 
-LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+LDFLAGS_GCC += \
+  -nostdlib -nostartfiles \
+  --specs=nosys.specs --specs=nano.specs \
 
 SRC_C += \
 	src/portable/microchip/samd/dcd_samd.c \
-	$(MCU_DIR)/gcc/gcc/startup_$(SAML_VARIANT).c \
+	$(SDK_DIR)/gcc/gcc/startup_$(MCU_VARIANT).c \
-	$(MCU_DIR)/gcc/system_$(SAML_VARIANT).c \
+	$(SDK_DIR)/gcc/system_$(MCU_VARIANT).c \
-	$(MCU_DIR)/hpl/gclk/hpl_gclk.c \
+	$(SDK_DIR)/hal/src/hal_atomic.c \
-	$(MCU_DIR)/hpl/mclk/hpl_mclk.c \
+	$(SDK_DIR)/hpl/gclk/hpl_gclk.c \
-	$(MCU_DIR)/hpl/pm/hpl_pm.c \
+	$(SDK_DIR)/hpl/mclk/hpl_mclk.c \
-	$(MCU_DIR)/hpl/osc32kctrl/hpl_osc32kctrl.c \
+	$(SDK_DIR)/hpl/osc32kctrl/hpl_osc32kctrl.c \
-	$(MCU_DIR)/hpl/oscctrl/hpl_oscctrl.c \
+	$(SDK_DIR)/hpl/oscctrl/hpl_oscctrl.c \
-	$(MCU_DIR)/hal/src/hal_atomic.c
+	$(SDK_DIR)/hpl/pm/hpl_pm.c \
 
 INC += \
 	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(MCU_DIR) \
+	$(TOP)/${SDK_DIR} \
-	$(TOP)/$(MCU_DIR)/config \
+	$(TOP)/${SDK_DIR}/config \
-	$(TOP)/$(MCU_DIR)/include \
+	$(TOP)/${SDK_DIR}/include \
-	$(TOP)/$(MCU_DIR)/hal/include \
+	$(TOP)/${SDK_DIR}/hal/include \
-	$(TOP)/$(MCU_DIR)/hal/utils/include \
+	$(TOP)/${SDK_DIR}/hal/utils/include \
-	$(TOP)/$(MCU_DIR)/hpl/port \
+	$(TOP)/${SDK_DIR}/hpl/pm/ \
-	$(TOP)/$(MCU_DIR)/hri \
+	$(TOP)/${SDK_DIR}/hpl/port \
-	$(TOP)/lib/CMSIS_5/CMSIS/Core/Include
+	$(TOP)/${SDK_DIR}/hri \
+	$(TOP)/lib/CMSIS_5/CMSIS/Core/Include \
 
 # flash using bossac at least version 1.8
 # can be found in arduino15/packages/arduino/tools/bossac/