create infrastructure for NO_OS_USB_UART argument

no-OS projects may now be built with the NO_OS_USB_UART=y make argument which will enable the creation of a CDC ACM device over USB to emulate a serial port. If the implementation does not exist, building will error out by not finding the maxim_usb_uart.c implementation file. Signed-off-by: Darius Berghe <[email protected]>
ribdp · Apr 9, 2024 · f94d138 · f94d138
1 parent 0a07b2c
commit f94d138
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Showing 3 changed files with 21 additions and 3 deletions.
diff --git a/iio/iio_app/iio_app.c b/iio/iio_app/iio_app.c
@@ -92,7 +92,7 @@ static inline uint32_t _calc_uart_xfer_time(uint32_t len, uint32_t baudrate)
 	return ms;
 }
 
-#if !defined(LINUX_PLATFORM) && !defined(NO_OS_NETWORKING)
+#if !defined(LINUX_PLATFORM) && !defined(NO_OS_NETWORKING) && !defined(NO_OS_USB_UART)
 static int32_t iio_print_uart_info_message(struct no_os_uart_desc **uart_desc,
 		struct no_os_uart_init_param *user_uart_params,
 		char *message, int32_t msglen)
@@ -116,7 +116,7 @@ static int32_t iio_print_uart_info_message(struct no_os_uart_desc **uart_desc,
 static int32_t print_uart_hello_message(struct no_os_uart_desc **uart_desc,
 					struct no_os_uart_init_param *user_uart_params)
 {
-#if defined(LINUX_PLATFORM) || defined(NO_OS_NETWORKING) || defined(NO_OS_LWIP_NETWORKING)
+#if defined(LINUX_PLATFORM) || defined(NO_OS_NETWORKING) || defined(NO_OS_LWIP_NETWORKING) || defined(NO_OS_USB_UART)
 	return 0;
 #else
 	const char *uart_data_size[] = { "5", "6", "7", "8", "9" };
@@ -151,7 +151,7 @@ static int32_t print_uart_error_message(struct no_os_uart_desc **uart_desc,
 	uint32_t msglen = sprintf(message,
 				  "IIOD server failed with code %d.\n",
 				  (int)status);
-#if defined(LINUX_PLATFORM) || defined(NO_OS_NETWORKING) || defined(NO_OS_LWIP_NETWORKING)
+#if defined(LINUX_PLATFORM) || defined(NO_OS_NETWORKING) || defined(NO_OS_LWIP_NETWORKING) || defined(NO_OS_USB_UART)
 	(void)msglen;
 	printf("%s", message);
 	return 0;

diff --git a/tools/scripts/generic_variables.mk b/tools/scripts/generic_variables.mk
@@ -33,6 +33,10 @@ GIT_VERSION := $(subst heads/,,$(GIT_VERSION))
 GIT_VERSION := $(subst -0-g,-,$(GIT_VERSION))
 CFLAGS += -DNO_OS_VERSION=$(GIT_VERSION) \
 		-DNO_OS_PROJECT=$(notdir $(PROJECT))
+
+ifeq '$(NO_OS_USB_UART)' 'y'
+CFLAGS += -DNO_OS_USB_UART
+endif
 #------------------------------------------------------------------------------
 #                          EVALUATE PLATFORM
 #------------------------------------------------------------------------------

diff --git a/tools/scripts/maxim.mk b/tools/scripts/maxim.mk
@@ -114,6 +114,20 @@ ifeq ($(TARGET_LCASE), max32650)
 INCS := $(filter-out $(MAXIM_LIBRARIES)/CMSIS/Device/Maxim/$(TARGET_UCASE)/Include/mxc_device.h, $(INCS))
 endif
 
+ifeq ($(NO_OS_USB_UART),y)
+SRCS +=	$(MAXIM_LIBRARIES)/MAXUSB/src/core/usb_event.c
+INCS += $(MAXIM_LIBRARIES)/MAXUSB/include/core/usb.h \
+	$(MAXIM_LIBRARIES)/MAXUSB/include/core/usb_protocol.h \
+	$(MAXIM_LIBRARIES)/MAXUSB/include/core/usb_event.h \
+	$(PLATFORM_DRIVERS)/maxim_usb_uart_descriptors.h
+SRC_DIRS += $(MAXIM_LIBRARIES)/MAXUSB/src/core/musbhsfc \
+	$(MAXIM_LIBRARIES)/MAXUSB/src/enumerate \
+	$(MAXIM_LIBRARIES)/MAXUSB/src/devclass \
+	$(MAXIM_LIBRARIES)/MAXUSB/include/core/musbhsfc \
+	$(MAXIM_LIBRARIES)/MAXUSB/include/enumerate \
+	$(MAXIM_LIBRARIES)/MAXUSB/include/devclass
+endif
+
 $(PLATFORM)_project:
 	$(call print, Building for target $(TARGET_LCASE))
 	$(call print,Creating IDE project)