stm_spi->dr = 0xff;
while (!(stm_spi->sr & (1 << STM_SPI_SR_RXNE)))
;
- return stm_spi->dr;
+ return (uint8_t) stm_spi->dr;
}
void
static inline void ao_disable_port(struct stm_gpio *port)
{
if ((port) == &stm_gpioa) {
- stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPAEN);
+ stm_rcc.ahbenr &= ~(1UL << STM_RCC_AHBENR_IOPAEN);
ao_power_unregister(&ao_power_gpioa);
} else if ((port) == &stm_gpiob) {
- stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPBEN);
+ stm_rcc.ahbenr &= ~(1UL << STM_RCC_AHBENR_IOPBEN);
ao_power_unregister(&ao_power_gpiob);
} else if ((port) == &stm_gpioc) {
- stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPCEN);
+ stm_rcc.ahbenr &= ~(1UL << STM_RCC_AHBENR_IOPCEN);
ao_power_unregister(&ao_power_gpioc);
} else if ((port) == &stm_gpiof) {
- stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPFEN);
+ stm_rcc.ahbenr &= ~(1UL << STM_RCC_AHBENR_IOPFEN);
ao_power_unregister(&ao_power_gpiof);
}
}