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authorKen Sarkies2013-03-07 18:35:04 +1030
committerKen Sarkies2013-03-07 18:35:04 +1030
commita9a85f080bb8fc729125d3ad162058f063496e60 (patch)
treecee25cef4074fe637d9d653ddf41bcf005fc26b2 /include/libopencm3/stm32/common/usart_common_all.h
parente2022f588492d5c117743b6b13801940f4a4b03e (diff)
Add test in common headers for improper inclusion of such files in application.
(prevents inclusion and also issues warning) Changes to some source files to remove references to common headers. Changes to rng.h to make guard symbols the same in f2 and f4.
Diffstat (limited to 'include/libopencm3/stm32/common/usart_common_all.h')
-rw-r--r--include/libopencm3/stm32/common/usart_common_all.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/libopencm3/stm32/common/usart_common_all.h b/include/libopencm3/stm32/common/usart_common_all.h
index b7ab394..2f33942 100644
--- a/include/libopencm3/stm32/common/usart_common_all.h
+++ b/include/libopencm3/stm32/common/usart_common_all.h
@@ -25,8 +25,11 @@
/**@{*/
-/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA SPI.H */
+/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA USART.H
+The order of header inclusion is important. usart.h includes the device
+specific memorymap.h header before including this header file.*/
+#if defined (LIBOPENCM3_USART_H) || defined (LIBOPENCM3_USART_COMMON_F24_H)
#ifndef LIBOPENCM3_USART_COMMON_ALL_H
#define LIBOPENCM3_USART_COMMON_ALL_H
@@ -371,5 +374,8 @@ bool usart_get_interrupt_source(u32 usart, u32 flag);
END_DECLS
#endif
+#else
+#warning "usart_common_all.h should not be included explicitly, only via usart.h"
+#endif
/**@}*/