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spi: seperate the pointer for the TX and RX DMA

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This commit is contained in:
Armando
2020-09-14 17:33:10 +08:00
parent 27a6f2666a
commit 59e350b195
10 changed files with 579 additions and 296 deletions
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7
components/hal/spi_hal_iram.c
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@@ -119,7 +119,9 @@ void spi_hal_setup_trans(spi_hal_context_t *hal, const spi_hal_dev_config_t *dev
void spi_hal_prepare_data(spi_hal_context_t *hal, const spi_hal_dev_config_t *dev, const spi_hal_trans_config_t *trans)
{
spi_dev_t *hw = hal->hw;
spi_ll_reset_dma(hw);
spi_ll_dma_fifo_reset(hal->hw);
//Fill DMA descriptors
if (trans->rcv_buffer) {
if (!hal->dma_enabled) {
@@ -132,9 +134,11 @@ void spi_hal_prepare_data(spi_hal_context_t *hal, const spi_hal_dev_config_t *de
spi_ll_dma_rx_enable(hal->hw, 1);
spi_dma_ll_rx_start(hal->dma_in, hal->dma_config.dmadesc_rx);
}
} else {
//DMA temporary workaround: let RX DMA work somehow to avoid the issue in ESP32 v0/v1 silicon
if (hal->dma_enabled) {
spi_ll_dma_rx_enable(hal->hw, 1);
spi_dma_ll_rx_start(hal->dma_in, 0);
}
}
@@ -152,6 +156,7 @@ void spi_hal_prepare_data(spi_hal_context_t *hal, const spi_hal_dev_config_t *de
spi_dma_ll_tx_start(hal->dma_out, hal->dma_config.dmadesc_tx);
}
}
//in ESP32 these registers should be configured after the DMA is set
if ((!dev->half_duplex && trans->rcv_buffer) || trans->send_buffer) {
spi_ll_enable_mosi(hw, 1);