556 #define DMA_EMUL_INST_HAS_PROP(_inst, _prop) DT_NODE_HAS_PROP(DT_DRV_INST(_inst), _prop)  argument
558 #define DMA_EMUL_INST_CHANNEL_MASK(_inst)                                                          \  argument
559 	DT_INST_PROP_OR(_inst, dma_channel_mask,                                                   \
560 			DMA_EMUL_INST_HAS_PROP(_inst, dma_channels)                                \
561 				? ((DT_INST_PROP(_inst, dma_channels) > 0)                         \
562 					   ? BIT_MASK(DT_INST_PROP_OR(_inst, dma_channels, 0))     \
566 #define DMA_EMUL_INST_NUM_CHANNELS(_inst)                                                          \  argument
567 	DT_INST_PROP_OR(_inst, dma_channels,                                                       \
568 			DMA_EMUL_INST_HAS_PROP(_inst, dma_channel_mask)                            \
569 				? POPCOUNT(DT_INST_PROP_OR(_inst, dma_channel_mask, 0))            \
572 #define DMA_EMUL_INST_NUM_REQUESTS(_inst) DT_INST_PROP_OR(_inst, dma_requests, 1)  argument
574 #define DEFINE_DMA_EMUL(_inst)                                                                     \  argument
575 	BUILD_ASSERT(DMA_EMUL_INST_HAS_PROP(_inst, dma_channel_mask) ||                            \
576 			     DMA_EMUL_INST_HAS_PROP(_inst, dma_channels),                          \
579 	BUILD_ASSERT(DMA_EMUL_INST_NUM_CHANNELS(_inst) <= 32, "invalid dma-channels property");    \
581 	static K_THREAD_STACK_DEFINE(work_q_stack_##_inst, DT_INST_PROP(_inst, stack_size));       \
584 		dma_emul_xfer_desc_##_inst[DMA_EMUL_INST_NUM_CHANNELS(_inst)];                     \
587 		dma_emul_block_config_##_inst[DMA_EMUL_INST_NUM_CHANNELS(_inst) *                  \
588 					      DMA_EMUL_INST_NUM_REQUESTS(_inst)];                  \
590 	static const struct dma_emul_config dma_emul_config_##_inst = {                            \
591 		.channel_mask = DMA_EMUL_INST_CHANNEL_MASK(_inst),                                 \
592 		.num_channels = DMA_EMUL_INST_NUM_CHANNELS(_inst),                                 \
593 		.num_requests = DMA_EMUL_INST_NUM_REQUESTS(_inst),                                 \
594 		.addr_align = DT_INST_PROP_OR(_inst, dma_buf_addr_alignment, 1),                   \
595 		.size_align = DT_INST_PROP_OR(_inst, dma_buf_size_alignment, 1),                   \
596 		.copy_align = DT_INST_PROP_OR(_inst, dma_copy_alignment, 1),                       \
597 		.work_q_stack = (k_thread_stack_t *)&work_q_stack_##_inst,                         \
598 		.work_q_stack_size = K_THREAD_STACK_SIZEOF(work_q_stack_##_inst),                  \
599 		.work_q_priority = DT_INST_PROP_OR(_inst, priority, 0),                            \
600 		.xfer = dma_emul_xfer_desc_##_inst,                                                \
601 		.block = dma_emul_block_config_##_inst,                                            \
604 	static ATOMIC_DEFINE(dma_emul_channels_atomic_##_inst,                                     \
605 			     DT_INST_PROP_OR(_inst, dma_channels, 0));                             \
607 	static struct dma_emul_data dma_emul_data_##_inst = {                                      \
608 		.channels_atomic = dma_emul_channels_atomic_##_inst,                               \
611 	PM_DEVICE_DT_INST_DEFINE(_inst, dma_emul_pm_device_pm_action);                             \
613 	DEVICE_DT_INST_DEFINE(_inst, dma_emul_init, PM_DEVICE_DT_INST_GET(_inst),                  \
614 			      &dma_emul_data_##_inst, &dma_emul_config_##_inst, POST_KERNEL,       \