152 static inline periph_module_t get_dma_periph(int dma_chan)  in get_dma_periph()  argument
154     assert(dma_chan >= 1 && dma_chan <= SOC_SPI_DMA_CHAN_NUM);  in get_dma_periph()
156     if (dma_chan == 1) {  in get_dma_periph()
158     } else if (dma_chan == 2) {  in get_dma_periph()
168 static bool spicommon_dma_chan_claim(int dma_chan, uint32_t *out_actual_dma_chan)  in spicommon_dma_chan_claim()  argument
173     bool is_used = (BIT(dma_chan) & spi_dma_chan_enabled);  in spicommon_dma_chan_claim()
175         spi_dma_chan_enabled |= BIT(dma_chan);  in spicommon_dma_chan_claim()
176         periph_module_enable(get_dma_periph(dma_chan));  in spicommon_dma_chan_claim()
177         *out_actual_dma_chan = dma_chan;  in spicommon_dma_chan_claim()
185 static void spicommon_connect_spi_and_dma(spi_host_device_t host, int dma_chan)  in spicommon_connect_spi_and_dma()  argument
188     DPORT_SET_PERI_REG_BITS(DPORT_SPI_DMA_CHAN_SEL_REG, 3, dma_chan, (host * 2));  in spicommon_connect_spi_and_dma()
194 static esp_err_t spicommon_dma_chan_alloc(spi_host_device_t host_id, spi_dma_chan_t dma_chan, uint3…  in spicommon_dma_chan_alloc()  argument
198     assert(dma_chan > SPI_DMA_DISABLED && dma_chan <= SPI_DMA_CH_AUTO);  in spicommon_dma_chan_alloc()
200     assert(dma_chan == (int)host_id || dma_chan == SPI_DMA_CH_AUTO);  in spicommon_dma_chan_alloc()
207     if (dma_chan == SPI_DMA_CH_AUTO) {  in spicommon_dma_chan_alloc()
220         success = spicommon_dma_chan_claim((int)dma_chan, &actual_dma_chan);  in spicommon_dma_chan_alloc()
237 static esp_err_t spicommon_dma_chan_alloc(spi_host_device_t host_id, spi_dma_chan_t dma_chan, uint3…  in spicommon_dma_chan_alloc()  argument
240     assert(dma_chan == SPI_DMA_CH_AUTO);  in spicommon_dma_chan_alloc()
245     if (dma_chan == SPI_DMA_CH_AUTO) {  in spicommon_dma_chan_alloc()
282 esp_err_t spicommon_slave_dma_chan_alloc(spi_host_device_t host_id, spi_dma_chan_t dma_chan, uint32…  in spicommon_slave_dma_chan_alloc()  argument
286     assert(dma_chan > SPI_DMA_DISABLED && dma_chan <= SPI_DMA_CH_AUTO);  in spicommon_slave_dma_chan_alloc()
288     assert(dma_chan == (int)host_id || dma_chan == SPI_DMA_CH_AUTO);  in spicommon_slave_dma_chan_alloc()
302     ret = spicommon_dma_chan_alloc(host_id, dma_chan, &actual_tx_dma_chan, &actual_rx_dma_chan);  in spicommon_slave_dma_chan_alloc()
327     int dma_chan = ctx->bus_attr.tx_dma_chan;  in spicommon_dma_chan_free()  local
328     assert(spi_dma_chan_enabled & BIT(dma_chan));  in spicommon_dma_chan_free()
331     spi_dma_chan_enabled &= ~BIT(dma_chan);  in spicommon_dma_chan_free()
332     periph_module_disable(get_dma_periph(dma_chan));  in spicommon_dma_chan_free()
619 …_initialize(spi_host_device_t host_id, const spi_bus_config_t *bus_config, spi_dma_chan_t dma_chan)  in spi_bus_initialize()  argument
630 …SPI_CHECK(dma_chan >= SPI_DMA_DISABLED && dma_chan <= SPI_DMA_CH_AUTO, "invalid dma channel", ESP_…  in spi_bus_initialize()
632 …SPI_CHECK( dma_chan == SPI_DMA_DISABLED || dma_chan == (int)host_id || dma_chan == SPI_DMA_CH_AUTO…  in spi_bus_initialize()
634 …SPI_CHECK( dma_chan == SPI_DMA_DISABLED || dma_chan == SPI_DMA_CH_AUTO, "invalid dma channel, chip…  in spi_bus_initialize()
655     if (dma_chan != SPI_DMA_DISABLED) {  in spi_bus_initialize()
658         err = spicommon_dma_chan_alloc(host_id, dma_chan, &actual_tx_dma_chan, &actual_rx_dma_chan);  in spi_bus_initialize()