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Warn against and check for non-DMA-capable pointers being passed to SPI when DMA is used

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Jeroen Domburg
2017-05-05 11:55:19 +08:00
parent 530c3ca05c
commit 8af3fe4e84
5 changed files with 29 additions and 0 deletions
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4
components/driver/spi_slave.c
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@@ -202,6 +202,10 @@ esp_err_t spi_slave_queue_trans(spi_host_device_t host, const spi_slave_transact
BaseType_t r;
SPI_CHECK(VALID_HOST(host), "invalid host", ESP_ERR_INVALID_ARG);
SPI_CHECK(spihost[host], "host not slave", ESP_ERR_INVALID_ARG);
SPI_CHECK(spihost[host]->dma_chan == 0 || trans_desc->tx_buffer==NULL || esp_ptr_dma_capable(trans_desc->tx_buffer),
"txdata not in DMA-capable memory", ESP_ERR_INVALID_ARG);
SPI_CHECK(spihost[host]->dma_chan == 0 || trans_desc->rx_buffer==NULL || esp_ptr_dma_capable(trans_desc->rx_buffer),
"rxdata not in DMA-capable memory", ESP_ERR_INVALID_ARG);
SPI_CHECK(trans_desc->length <= spihost[host]->max_transfer_sz * 8, "data transfer > host maximum", ESP_ERR_INVALID_ARG);
r = xQueueSend(spihost[host]->trans_queue, (void *)&trans_desc, ticks_to_wait);