spicommon_dmaworkaround_transfer_active() function

Mark a DMA channel as active. A call to this function tells the workaround logic that this channel will be affected by a global SPI DMA reset, and a reset like that should not be attempted.

Syntax

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Summary

Declaration

Definition

from spi_common_internal.h:265

void spicommon_dmaworkaround_transfer_active(int dmachan);

Implemented in spi_common.c:1065

Arguments

Argument

dmachan

References

Code

Location

Referrer

void IRAM_ATTR spicommon_dmaworkaround_transfer_active(int dmachan)

spi_common.c:1065

void spicommon_dmaworkaround_transfer_active(int dmachan);

spi_common_internal.h:265

spicommon_dmaworkaround_transfer_active(dma_ctx->tx_dma_chan.chan_id);

spi_master.c:1022

spi_intr()

spicommon_dmaworkaround_transfer_active(host->dma_ctx->tx_dma_chan.chan_id);

spi_master.c:1319

spi_device_acquire_bus()

spicommon_dmaworkaround_transfer_active(host->dma_ctx->tx_dma_chan.chan_id);

spi_slave.c:668

spi_intr()

Call Tree

spicommon_dmaworkaround_transfer_active() is called by 3 functions and calls 2 functions:

spi_intr()

spi_device_acquire_bus()

spi_intr()

spicommon_dmaworkaround_transfer_active()

vPortEnterCritical()

vPortExitCritical()

Data Use

spicommon_dmaworkaround_transfer_active() reads 1 variable:

dmaworkaround_channels_busy

spicommon_dmaworkaround_transfer_active()

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