void
ao_spi_send_bus(void __xdata *block, uint16_t len) __reentrant
{
-#if !AO_SPI_SLAVE
ao_dma_set_transfer(ao_spi_dma_in_id,
&SPI_BUF,
&ao_spi_const,
DMA_CFG1_SRCINC_0 |
DMA_CFG1_DESTINC_0 |
DMA_CFG1_PRIORITY_NORMAL);
-#endif
ao_dma_set_transfer(ao_spi_dma_out_id,
block,
&SPI_BUF,
DMA_CFG1_DESTINC_0 |
DMA_CFG1_PRIORITY_NORMAL);
-#if !AO_SPI_SLAVE
ao_dma_start(ao_spi_dma_in_id);
-#endif
ao_dma_start(ao_spi_dma_out_id);
ao_dma_trigger(ao_spi_dma_out_id);
-#if AO_SPI_SLAVE
- __critical while (!ao_spi_dma_out_done)
- ao_sleep(&ao_spi_dma_out_done);
-#else
+#if !AO_SPI_SLAVE
__critical while (!ao_spi_dma_in_done)
ao_sleep(&ao_spi_dma_in_done);
#endif
}
-
+#if AO_SPI_SLAVE
+void
+ao_spi_send_wait(void)
+{
+ __critical while (!ao_spi_dma_in_done)
+ ao_sleep(&ao_spi_dma_in_done);
+}
+#endif
/* Receive bytes over SPI.
*
ao_spi_const = SPI_CONST;
+#if !AO_SPI_SLAVE
ao_dma_set_transfer(ao_spi_dma_out_id,
&ao_spi_const,
&SPI_BUF,
DMA_CFG1_SRCINC_0 |
DMA_CFG1_DESTINC_0 |
DMA_CFG1_PRIORITY_NORMAL);
+#endif
ao_dma_start(ao_spi_dma_in_id);
+#if !AO_SPI_SLAVE
ao_dma_start(ao_spi_dma_out_id);
ao_dma_trigger(ao_spi_dma_out_id);
__critical while (!ao_spi_dma_in_done)
ao_sleep(&ao_spi_dma_in_done);
+#endif
}
+#if AO_SPI_SLAVE
+void
+ao_spi_recv_wait(void)
+{
+ __critical while (!ao_spi_dma_in_done)
+ ao_sleep(&ao_spi_dma_in_done);
+}
+#endif
void
ao_spi_init(void)