diff options
| author | Keith Packard <keithp@keithp.com> | 2012-04-07 00:25:26 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-04-07 00:25:26 -0700 |
| commit | c7119405a3dd7128120374a2a001bc98ef523619 (patch) | |
| tree | 2d945f9bca13dc441957619ee1cb12990c9689e5 | |
| parent | d0d0d20c20e5eeacbc9a1ec1c93141a2044830fb (diff) | |
altos: Make ao_freq_to_set reentrant
Save a bunch of data space this way.
Signed-off-by: Keith Packard <keithp@keithp.com>
| -rw-r--r-- | src/core/ao.h | 2 | ||||
| -rw-r--r-- | src/core/ao_freq.c | 13 |
2 files changed, 10 insertions, 5 deletions
diff --git a/src/core/ao.h b/src/core/ao.h index 67efa437..150c0817 100644 --- a/src/core/ao.h +++ b/src/core/ao.h @@ -1892,7 +1892,7 @@ ao_sqrt(uint32_t op); * ao_freq.c */ -int32_t ao_freq_to_set(int32_t freq, int32_t cal); +int32_t ao_freq_to_set(int32_t freq, int32_t cal) __reentrant; #include <ao_arch_funcs.h> diff --git a/src/core/ao_freq.c b/src/core/ao_freq.c index 67b0b037..12496f6f 100644 --- a/src/core/ao_freq.c +++ b/src/core/ao_freq.c @@ -25,10 +25,15 @@ * frequency, and updating the radio setting along the way */ -int32_t ao_freq_to_set(int32_t freq, int32_t cal) { - __pdata int32_t set = 0; - uint8_t neg = 0; - __pdata int32_t error = -434550 / 2; +int32_t ao_freq_to_set(int32_t freq, int32_t cal) __reentrant +{ + static __pdata int32_t set; + static __pdata uint8_t neg; + static __pdata int32_t error; + + set = 0; + neg = 0; + error = -434550 / 2; if ((freq -= 434550) < 0) { neg = 1; |