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stm32-sx1280: implement DMA TX only and TX+RX

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# Conflicts:
#	port/stm32-l073rz-nucleo-sx1280/Inc/main.h
This commit is contained in:
Matthias Ringwald 2020-10-05 00:34:19 +02:00
parent ec59e7868b
commit 78bb22e917
1 changed files with 78 additions and 17 deletions
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95
chipset/sx128x/SMTC_Drivers/sx1280-driver-c/sx1280-hal.c
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@ -133,16 +133,70 @@ const struct Radio_s Radio =
};
#ifndef USE_BK_SPI
static uint8_t halRxBuffer[MAX_HAL_BUFFER_SIZE] = {0x00};
#endif
static uint8_t halRxBuffer[MAX_HAL_BUFFER_SIZE] = {0x00};
static uint8_t halTxBuffer[MAX_HAL_BUFFER_SIZE] = {0x00};
static DioIrqHandler **dioIrqHandlers;
extern SPI_HandleTypeDef RADIO_SPI_HANDLE;
extern DMA_HandleTypeDef RADIO_SPI_DMA_RX;
extern DMA_HandleTypeDef RADIO_SPI_DMA_TX;
#ifdef USE_BK_SPI
static void spi_tx_only_dma(const uint8_t * tx_data, uint16_t tx_len) {
// Enable & Config SPI
#ifdef STM32L4XX_FAMILY
/* Set fiforxthreshold according the reception data length: 8bit */
SET_BIT(RADIO_SPI_HANDLE.Instance->CR2, SPI_RXFIFO_THRESHOLD);
#endif
/* Check if the SPI is already enabled */
if ((RADIO_SPI_HANDLE.Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) {
/* Enable SPI peripheral */
__HAL_SPI_ENABLE(&RADIO_SPI_HANDLE);
}
HAL_DMA_Start(&RADIO_SPI_DMA_TX, (uintptr_t) tx_data, (uintptr_t) &RADIO_SPI_HANDLE.Instance->DR, tx_len);
/* Enable Tx DMA Request */
SET_BIT(RADIO_SPI_HANDLE.Instance->CR2, SPI_CR2_TXDMAEN);
HAL_DMA_PollForTransfer(&RADIO_SPI_DMA_TX, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
/* Discard received byte */
(void) RADIO_SPI_HANDLE.Instance->DR;
}
static void spi_tx_rx_dma(const uint8_t * tx_data, uint8_t * rx_buffer, uint16_t size) {
#ifdef STM32L4XX_FAMILY
/* Set fiforxthreshold according the reception data length: 8bit */
SET_BIT(RADIO_SPI_HANDLE.Instance->CR2, SPI_RXFIFO_THRESHOLD);
#endif
/* Check if the SPI is already enabled */
if ((RADIO_SPI_HANDLE.Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) {
/* Enable SPI peripheral */
__HAL_SPI_ENABLE(&RADIO_SPI_HANDLE);
}
/* Enable Rx DMA Request */
SET_BIT(RADIO_SPI_HANDLE.Instance->CR2, SPI_CR2_RXDMAEN);
HAL_DMA_Start(&RADIO_SPI_DMA_RX, (uintptr_t) &RADIO_SPI_HANDLE.Instance->DR, (uintptr_t) rx_buffer, size);
HAL_DMA_Start(&RADIO_SPI_DMA_TX, (uintptr_t) tx_data, (uintptr_t) &RADIO_SPI_HANDLE.Instance->DR, size);
/* Enable Tx DMA Request */
SET_BIT(RADIO_SPI_HANDLE.Instance->CR2, SPI_CR2_TXDMAEN);
HAL_DMA_PollForTransfer(&RADIO_SPI_DMA_TX, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
HAL_DMA_PollForTransfer(&RADIO_SPI_DMA_RX, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
}
static void spi_tx_then_rx(SPI_HandleTypeDef *hspi, const uint8_t * tx_data, uint16_t tx_len, uint8_t * rx_buffer, uint16_t rx_len){
/* Set fiforxthreshold according the reception data length: 8bit */
@ -184,29 +238,36 @@ static void spi_tx_then_rx(SPI_HandleTypeDef *hspi, const uint8_t * tx_data, uin
// assert: tx_data == tx_buffer (local call)
void SX1280HalSpiTxThenRx(uint16_t tx_len, uint8_t * rx_buffer, uint16_t rx_len){
#ifdef USE_BK_SPI
spi_tx_then_rx(&RADIO_SPI_HANDLE, halTxBuffer, tx_len, rx_buffer, rx_len);
#else
// min size for dma to be faster (L073@24 Mhz)
const uint16_t dma_tx_min_size = 8;
const uint16_t dma_tx_rx_min_size = 16;
if (rx_len == 0){
// SPI Transfer
HAL_SPI_Transmit( &RADIO_SPI_HANDLE, halTxBuffer, size, HAL_MAX_DELAY );
if (tx_len < dma_tx_min_size) {
// Custom Polling
spi_tx_then_rx(&RADIO_SPI_HANDLE, halTxBuffer, tx_len, NULL, 0);
} else {
// Custom DMA
spi_tx_only_dma( halTxBuffer, tx_len );
}
} else {
uint16_t total_len = tx_len + rx_len;
// fill TX buffer with zeros
memset(&halTxBuffer[tx_len], 0, rx_len);
// SPI Transfer
#ifdef STM32L4XX_FAMILY
// Comment For STM32L0XX and STM32L1XX Intégration, uncomment for STM32L4XX Intégration
HAL_SPIEx_FlushRxFifo( &RADIO_SPI_HANDLE );
#endif
HAL_SPI_TransmitReceive( &RADIO_SPI_HANDLE, halTxBuffer, halRxBuffer, size, HAL_MAX_DELAY );
if (total_len < dma_tx_rx_min_size){
// Custom Polling
spi_tx_then_rx(&RADIO_SPI_HANDLE, halTxBuffer, tx_len, rx_buffer, rx_len);
} else {
// Custom DMA
spi_tx_rx_dma( halTxBuffer, halRxBuffer, total_len);
// return rx data
memcpy( rx_buffer, &halRxBuffer[tx_len], rx_len );
}
// return rx data
memcpy( rx_buffer, &halRxBuffer[tx_len], size );
}
#endif
}
/*!