diff options
Diffstat (limited to 'chip/nrf51/ppi.c')
| -rw-r--r-- | chip/nrf51/ppi.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/chip/nrf51/ppi.c b/chip/nrf51/ppi.c index d0be87f2ba..016cbf3008 100644 --- a/chip/nrf51/ppi.c +++ b/chip/nrf51/ppi.c @@ -18,10 +18,10 @@ int ppi_request_pre_programmed_channel(int ppi_chan) ASSERT(ppi_chan >= NRF51_PPI_FIRST_PP_CH && ppi_chan <= NRF51_PPI_LAST_PP_CH); - if (channels_in_use & (1 << ppi_chan)) + if (channels_in_use & BIT(ppi_chan)) return EC_ERROR_BUSY; - channels_in_use |= (1 << ppi_chan); + channels_in_use |= BIT(ppi_chan); return EC_SUCCESS; } @@ -31,25 +31,25 @@ int ppi_request_channel(int *ppi_chan) int chan; for (chan = 0; chan < NRF51_PPI_NUM_PROGRAMMABLE_CHANNELS; chan++) - if ((channels_in_use & (1 << chan)) == 0) + if ((channels_in_use & BIT(chan)) == 0) break; if (chan == NRF51_PPI_NUM_PROGRAMMABLE_CHANNELS) return EC_ERROR_BUSY; - channels_in_use |= (1 << chan); + channels_in_use |= BIT(chan); *ppi_chan = chan; return EC_SUCCESS; } void ppi_release_channel(int ppi_chan) { - channels_in_use &= ~(1 << ppi_chan); + channels_in_use &= ~BIT(ppi_chan); } void ppi_release_group(int ppi_group) { - channel_groups_in_use &= ~(1 << ppi_group); + channel_groups_in_use &= ~BIT(ppi_group); } int ppi_request_group(int *ppi_group) @@ -57,13 +57,13 @@ int ppi_request_group(int *ppi_group) int group; for (group = 0; group < NRF51_PPI_NUM_GROUPS; group++) - if ((channel_groups_in_use & (1 << group)) == 0) + if ((channel_groups_in_use & BIT(group)) == 0) break; if (group == NRF51_PPI_NUM_GROUPS) return EC_ERROR_BUSY; - channel_groups_in_use |= (1 << group); + channel_groups_in_use |= BIT(group); *ppi_group = group; return EC_SUCCESS; } |