Lines Matching refs:DMA

62 The DMA time is measured using counters - typically the least reliable
63 of all measurements due to the bursty natured of DMA transfers.
80 timestamp will report the DMA time based on the hw_pointer value.
85 streams and to the DMA time (hw_ptr) in all other cases.
143 1. DMA timestamp, no compensation for DMA+analog delay
152 2. DMA timestamp, compensation for DMA+analog delay
160 3. link timestamp, compensation for DMA+analog delay
169 Example 1 shows that the timestamp at the DMA level is close to 1ms
172 DMA-link delay in example 2 helps remove the hardware buffering abut
183 Example 3: DMA timestamp, no compensation for delay, delta of ~5ms
193 Example 4: DMA timestamp, compensation for delay, delay of ~1ms