aboutsummaryrefslogtreecommitdiff
path: root/lib/efm32/tinygecko/devicerevision.c
diff options
context:
space:
mode:
authorchrysn2012-02-25 18:57:11 +0100
committerchrysn2012-02-25 23:22:37 +0100
commit2180a02e2f79b8ee77780ea11be188c0faaa8866 (patch)
tree835991491d74d9626cf362ff52b0bcfc6eed4886 /lib/efm32/tinygecko/devicerevision.c
parent2b3f07ee08c722f28cbf480dbcc5276707f78ec4 (diff)
first attempt at porting libopencm3 to energymicro
unless sources are explicitly given, the linker scripts and make files were copied over from the stm32/f1 port.
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);
+}