nrf_wifi_osal_bus_pcie_dev_dma_map()

void * nrf_wifi_osal_bus_pcie_dev_dma_map	(	void *	os_pcie_dev_ctx,
		void *	virt_addr,
		size_t	size,
		enum nrf_wifi_osal_dma_dir	dir )

Map host memory for DMA access.

Parameters

os_pcie_dev_ctx	Pointer to a OS specific PCIe device handle.
virt_addr	Virtual host address to be DMA mapped.
size	Size in bytes of the host memory to be DMA mapped.
dir	DMA direction.

Maps host memory of size bytes pointed to by the virtual address virt_addr to be used by the device(dma_dev) for DMAing contents. The contents are available for DMAing to the device if dir has a value of NRF_WIFI_OSAL_DMA_DIR_TO_DEV. Conversely the device can DMA contents to the host memory if dir has a value of NRF_WIFI_OSAL_DMA_DIR_FROM_DEV. The function returns the DMA address of the mapped memory.