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Deinitialize ESP32-S3 SPI slave GDMA engine

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nuttxs 2024-02-22 18:05:25 +08:00 committed by Xiang Xiao
parent 996b9377a7
commit d2b4734756
1 changed files with 30 additions and 1 deletions
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31
arch/xtensa/src/esp32s3/esp32s3_spi_slave.c
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@ -1150,6 +1150,35 @@ void spislave_dma_init(struct spislave_priv_s *priv)
resetbits(SPI_RX_EOF_EN_M, SPI_DMA_CONF_REG(priv->config->id)); resetbits(SPI_RX_EOF_EN_M, SPI_DMA_CONF_REG(priv->config->id));
} }
/****************************************************************************
* Name: spislave_dma_deinit
*
* Description:
* Deinitialize ESP32-S3 SPI slave GDMA engine.
*
* Input Parameters:
* dev - Device-specific state data
*
* Returned Value:
* None.
*
****************************************************************************/
void spislave_dma_deinit(struct spislave_priv_s *priv)
{
/* Release a DMA channel from peripheral */
esp32s3_dma_release(priv->dma_channel);
/* Deinitialize DMA controller */
esp32s3_dma_deinit();
/* Disable DMA clock for the SPI peripheral */
modifyreg32(SYSTEM_PERIP_CLK_EN0_REG, priv->config->dma_clk_bit, 0);
}
#endif #endif
/**************************************************************************** /****************************************************************************
@ -1390,7 +1419,7 @@ static void spislave_deinitialize(struct spi_slave_ctrlr_s *ctrlr)
resetbits(SPI_TRANS_DONE_INT_ENA_M, SPI_DMA_INT_ENA_REG(priv->config->id)); resetbits(SPI_TRANS_DONE_INT_ENA_M, SPI_DMA_INT_ENA_REG(priv->config->id));
#ifdef CONFIG_ESP32S3_SPI_DMA #ifdef CONFIG_ESP32S3_SPI_DMA
resetbits(priv->config->dma_clk_bit, SYSTEM_PERIP_CLK_EN0_REG); spislave_dma_deinit(priv);
priv->rx_dma_offset = 0; priv->rx_dma_offset = 0;
#endif #endif