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| author | Keith Packard <keithp@keithp.com> | 2012-07-11 13:50:56 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-07-11 13:50:56 -0700 |
| commit | fe70611c3c7d4b8cce3b5292f0ec549f3191bf86 (patch) | |
| tree | 34c7b7c73fc3a2528757fece149e7a5d26edc4d6 /src/core/ao.h | |
| parent | 18431c88c8a6cb267922b97192e8b7ddb88d0e7e (diff) | |
altos: Create macros to convert from/to radio RSSI representation
AO_RSSI_FROM_RADIO and AO_RADIO_FROM_RSSI.
Removes a bunch of open-coded versions of the same function.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/core/ao.h')
| -rw-r--r-- | src/core/ao.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/core/ao.h b/src/core/ao.h index 06daf48f..eb2d47cf 100644 --- a/src/core/ao.h +++ b/src/core/ao.h @@ -487,6 +487,12 @@ struct ao_telemetry_tiny_recv { uint8_t status; }; +/* Unfortunately, we've exposed the CC1111 rssi units as the 'usual' method + * for reporting RSSI. So, now we use these values everywhere + */ +#define AO_RSSI_FROM_RADIO(radio) ((int16_t) ((int8_t) (radio) >> 1) - 74) +#define AO_RADIO_FROM_RSSI(rssi) (((int8_t) (rssi) + 74) << 1) + /* * ao_radio_recv tacks on rssi and status bytes */ |