void HAL_SPI_SS_Handler(void *data)
{
HAL_SPI_Interface spi = (HAL_SPI_Interface)data;
uint8_t state = !HAL_GPIO_Read(spiState[spi].SPI_SS_Pin);
spiState[spi].SPI_SS_State = state;
if (state)
{
/* Selected */
if (spiState[spi].SPI_DMA_Configured)
SPI_Cmd(spiMap[spi].SPI_Peripheral, ENABLE);
}
else
{
/* Deselected
* If there is a pending DMA transfer, it needs to be canceled.
*/
SPI_Cmd(spiMap[spi].SPI_Peripheral, DISABLE);
if (spiState[spi].SPI_DMA_Configured)
{
HAL_SPI_DMA_Transfer_Cancel(spi);
}
else
{
/* Just in case clear DR */
while (SPI_I2S_GetFlagStatus(spiMap[spi].SPI_Peripheral, SPI_I2S_FLAG_RXNE) == SET)
{
(void)SPI_I2S_ReceiveData(spiMap[spi].SPI_Peripheral);
}
}
}
if (spiState[spi].SPI_Select_UserCallback)
spiState[spi].SPI_Select_UserCallback(state);
}
/*
* @brief Reads the value of a GPIO pin. Should return either 1 (HIGH) or 0 (LOW).
*/
int32_t digitalRead(pin_t pin)
{
PinMode mode = HAL_Get_Pin_Mode(pin);
if (is_af_output_mode(mode))
return LOW;
// Safety check
if( !pinAvailable(pin) ) {
return LOW;
}
return HAL_GPIO_Read(pin);
}
/**
* @brief Returns the selected Button non-filtered state.
* @param Button: Specifies the Button to be checked.
* This parameter can be one of following parameters:
* @arg BUTTON1: Button1
* @retval Actual Button Pressed state.
*/
uint8_t BUTTON_GetState(Button_TypeDef Button) {
return HAL_GPIO_Read(HAL_Buttons[Button].pin);
}
