patrick/zephyr
1
0
Fork 0
Code Issues Pull requests Actions 7 Packages Projects Releases Wiki Activity

drivers: spi: esp32xx: Fix buffer length for DMA

Browse source 
Fixes #52588

Signed-off-by: Lucas Tamborrino <lucas.tamborrino@espressif.com>
This commit is contained in:
Lucas Tamborrino 2022-11-30 09:08:00 -03:00 committed by Fabio Baltieri
parent 7c4095e1e4
commit b196edf55d
1 changed files with 5 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/spi/spi_esp32_spim.c
View file

@ -33,6 +33,8 @@ LOG_MODULE_REGISTER(esp32_spi, CONFIG_SPI_LOG_LEVEL);
#define ISR_HANDLER intr_handler_t
#endif
#define SPI_DMA_MAX_BUFFER_SIZE 4092
static bool spi_esp32_transfer_ongoing(struct spi_esp32_data *data)
{
return spi_context_tx_on(&data->ctx) || spi_context_rx_on(&data->ctx);
@ -64,7 +66,9 @@ static int IRAM_ATTR spi_esp32_transfer(const struct device *dev)
spi_hal_dev_config_t *hal_dev = &data->dev_config;
spi_hal_trans_config_t *hal_trans = &data->trans_config;
size_t chunk_len = spi_context_max_continuous_chunk(&data->ctx);
chunk_len = MIN(chunk_len, SOC_SPI_MAXIMUM_BUFFER_SIZE);
size_t max_buf_sz =
cfg->dma_enabled ? SPI_DMA_MAX_BUFFER_SIZE : SOC_SPI_MAXIMUM_BUFFER_SIZE;
chunk_len = MIN(chunk_len, max_buf_sz);
size_t bit_len = chunk_len << 3;
uint8_t *rx_temp = NULL;
uint8_t *tx_temp = NULL;