altos/stm32l0: Add casts to reduce -Wconversion warnings

[fw/altos] / src / stm32l0 / ao_serial_stm.c

diff --git a/src/stm32l0/ao_serial_stm.c b/src/stm32l0/ao_serial_stm.c
index ac745d9709387d7aec07b45ba3cc0d5019487822..650f2f1f636c335f80e8c27068948b42c65a1cfc 100644 (file)
--- a/src/stm32l0/ao_serial_stm.c
+++ b/src/stm32l0/ao_serial_stm.c
@@ -66,7 +66,7 @@ _ao_usart_rx(struct ao_stm_usart *usart, int is_stdin)
                        }
 #endif
                } else {
-                       usart->reg->cr1 &= ~(1 << STM_USART_CR1_RXNEIE);
+                       usart->reg->cr1 &= ~(1UL << STM_USART_CR1_RXNEIE);
                }
        }
 }
@@ -77,11 +77,11 @@ ao_usart_isr(struct ao_stm_usart *usart, int is_stdin)
        _ao_usart_rx(usart, is_stdin);
 
        if (!_ao_usart_tx_start(usart))
-               usart->reg->cr1 &= ~(1<< STM_USART_CR1_TXEIE);
+               usart->reg->cr1 &= ~(1UL << STM_USART_CR1_TXEIE);
 
        if (usart->reg->isr & (1 << STM_USART_ISR_TC)) {
                usart->tx_running = 0;
-               usart->reg->cr1 &= ~(1 << STM_USART_CR1_TCIE);
+               usart->reg->cr1 &= ~(1UL << STM_USART_CR1_TCIE);
                if (usart->draining) {
                        usart->draining = 0;
                        ao_wakeup(&usart->tx_fifo);