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author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
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committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
tree | 65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/board/fads/lamp.c | |
download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip |
Diffstat (limited to 'roms/u-boot/board/fads/lamp.c')
-rw-r--r-- | roms/u-boot/board/fads/lamp.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/roms/u-boot/board/fads/lamp.c b/roms/u-boot/board/fads/lamp.c new file mode 100644 index 00000000..ffcc2b3c --- /dev/null +++ b/roms/u-boot/board/fads/lamp.c @@ -0,0 +1,43 @@ +#include <config.h> + +#include <common.h> + +void +signal_delay(unsigned int n) +{ + while (n--); +} + +void +signal_on(void) +{ + *((volatile uint *)BCSR4) &= ~(1<<(31-3)); /* led on */ +} + +void +signal_off(void) +{ + *((volatile uint *)BCSR4) |= (1<<(31-3)); /* led off */ +} + +void +slow_blink(unsigned int n) +{ + while (n--) { + signal_on(); + signal_delay(0x00400000); + signal_off(); + signal_delay(0x00400000); + } +} + +void +fast_blink(unsigned int n) +{ + while (n--) { + signal_on(); + signal_delay(0x00100000); + signal_off(); + signal_delay(0x00100000); + } +} |