Shaunak Datar commented on a discussion on bsps/aarch64/raspberrypi/include/bsp/raspberrypi-dma.h: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/662#note_129083 > + * Allocates and prepares the channel-specific control block, performs > required > + * cache maintenance (flush control block and source; invalidate > destination), > + * issues CS reset/abort, and writes CONBLK_AD (with DMA4 address packing > via > + * DMA4_AD_SHIFT). This function does **not** start the transfer; call > + * ::rpi_dma_start_transfer() and then ::rpi_dma_wait(). > + * > + * @param channel DMA channel to use (0–6 noarmal DMA, 7–10 > lite, 11–14 DMA4). > + * @param source_address Source buffer (must be CPU_CACHE_LINE_BYTES > aligned). > + * @param destination_address Destination buffer (must be > CPU_CACHE_LINE_BYTES aligned). > + * @param transfer_length Number of bytes to copy. > + * @retval RTEMS_SUCCESSFUL on success. > + * @retval RTEMS_INVALID_NUMBER if @a channel is invalid/unsupported or > has no base address. > + * @retval RTEMS_INVALID_ADDRESS if @a source_address or @a > destination_address are misaligned. > + * @retval RTEMS_NO_MEMORY if control block allocation failed. > + */ > +rtems_status_code rpi_dma_mem_to_mem_init( rpi_dma_channel channel, void > *source_address, void *destination_address, uint32_t transfer_length ); Changed the formatting to pass the pipeline, without warning -- View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/662#note_129083 You're receiving this email because of your account on gitlab.rtems.org.
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