altos/stm32l0: Add casts to reduce -Wconversion warnings

[fw/altos] / src / stm32l0 / ao_adc_stm32l0.c

diff --git a/src/stm32l0/ao_adc_stm32l0.c b/src/stm32l0/ao_adc_stm32l0.c
index a7af0a08308197fc21a6a395eaf59284e9b4a031..5c0f4c2bd1021e2e25597148710355f5bf93e61c 100644 (file)
--- a/src/stm32l0/ao_adc_stm32l0.c
+++ b/src/stm32l0/ao_adc_stm32l0.c
@@ -54,8 +54,8 @@ ao_adc_init(void)
                       (0 << STM_ADC_CCR_VREFEN));
 
        /* Calibrate. This also enables the ADC vreg */
-       stm_adc.cr |= (1 << STM_ADC_CR_ADCAL);
-       while ((stm_adc.cr & (1 << STM_ADC_CR_ADCAL)) != 0)
+       stm_adc.cr |= (1UL << STM_ADC_CR_ADCAL);
+       while ((stm_adc.cr & (1UL << STM_ADC_CR_ADCAL)) != 0)
                ;
 
        /* Enable */
@@ -77,10 +77,10 @@ ao_adc_shutdown(void)
        stm_adc.isr = (1 << STM_ADC_ISR_ADRDY);
 
        /* Disable ADC vreg */
-       stm_adc.cr &= ~(1 << STM_ADC_CR_ADVREGEN);
+       stm_adc.cr &= ~(1UL << STM_ADC_CR_ADVREGEN);
 
        /* Disable ADC clocks */
-       stm_rcc.apb2enr &= ~(1 << STM_RCC_APB2ENR_ADCEN);
+       stm_rcc.apb2enr &= ~(1UL << STM_RCC_APB2ENR_ADCEN);
 }
 
 uint16_t
@@ -104,7 +104,7 @@ ao_adc_read_vref(void)
                ;
 
        /* Fetch result */
-       value = stm_adc.dr;
+       value = (uint16_t) stm_adc.dr;
 
        ao_adc_shutdown();
        return value;