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Diffstat (limited to 'lib/efm32/tinygecko/devicerevision.c')
-rw-r--r--lib/efm32/tinygecko/devicerevision.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/efm32/tinygecko/devicerevision.c b/lib/efm32/tinygecko/devicerevision.c
new file mode 100644
index 0000000..216ab1b
--- /dev/null
+++ b/lib/efm32/tinygecko/devicerevision.c
@@ -0,0 +1,10 @@
+#include <libopencm3/efm32/tinygecko/devicerevision.h>
+
+u8 devicerevision_revision_get(void)
+{
+ /* probably this is more elegant, more readable and closer to the spec,
+ * and i'll just get used to doing things like that:
+ return (DEVICEREVISION_PID2 & 0xf0) | ((DEVICEREVISION_PID3 & 0xf0) >> 4);
+ */
+ return ((DEVICEREVISION_PID2 & DEVICEREVISION_REVISION_MASK) >> DEVICEREVISION_REVISION_SHIFT << DEVICEREVISION_REVISION_LENGTH) | ((DEVICEREVISION_PID3 & DEVICEREVISION_REVISION_MASK) >> DEVICEREVISION_REVISION_SHIFT);
+}