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Simple PCIe FMC carrier SPEC
Commit c67d3081 authored by Federico Vaga's avatar Federico Vaga
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sw:drv:spi: add is_busy helper 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent 014947bc
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Showing with 8 additions and 3 deletions
software/kernel/spi-ocores.c
View file @ c67d3081
...@@ -569,6 +569,13 @@ static void spi_ocores_finalize_current_message(struct spi_ocores *sp) ...@@ -569,6 +569,13 @@ static void spi_ocores_finalize_current_message(struct spi_ocores *sp)
} }
static bool spi_ocores_is_busy(struct spi_ocores *sp)
{
uint32_t ctrl = sp->read(sp, SPI_OCORES_CTRL);
return (ctrl & SPI_OCORES_CTRL_BUSY);
}
/** /**
* Process an SPI transfer * Process an SPI transfer
* @sp: SPI OCORE controller * @sp: SPI OCORE controller
...@@ -577,9 +584,7 @@ static void spi_ocores_finalize_current_message(struct spi_ocores *sp) ...@@ -577,9 +584,7 @@ static void spi_ocores_finalize_current_message(struct spi_ocores *sp)
*/ */
static int spi_ocores_process(struct spi_ocores *sp) static int spi_ocores_process(struct spi_ocores *sp)
{ {
uint32_t ctrl = sp->read(sp, SPI_OCORES_CTRL); if (spi_ocores_is_busy(sp))
if (ctrl & SPI_OCORES_CTRL_BUSY)
return -ENODATA; return -ENODATA;
spi_ocores_hw_xfer_rx_pop(sp); spi_ocores_hw_xfer_rx_pop(sp);
......
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