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26 Commits

Author SHA1 Message Date
occheung 8da924ec0f dma: set conversion granularity using bus width 2021-11-08 16:59:08 +08:00
occheung 051a14abf2 rtio/dma: fix endianness 2021-09-10 13:25:12 +08:00
Sebastien Bourdeauducq 4340a5cfc1 rtio/dma: fix previous commit 2020-07-12 10:14:22 +08:00
Sebastien Bourdeauducq f2e0d27334 rtio/dma: remove dead/broken code 2020-07-12 10:13:18 +08:00
Sebastien Bourdeauducq 8caea0e6d3 gateware,runtime: optimize RTIO kernel interface further 
* now pinning (TODO: atomicity)
* for inputs, merge request and timeout registers
 2018-11-08 18:29:24 +08:00
Sebastien Bourdeauducq 3d0c3cc1cf gateware,runtime: optimize RTIO output interface 
* reduce address to 8 bits
* merge core, channel and address into 32-bit pre-computable "target"
* merge we register into data register
 2018-11-07 23:39:58 +08:00
Sebastien Bourdeauducq 928d5dc9b3 drtio: raise RTIOLinkError if operation fails due to link lost (#942) 2018-03-04 01:02:53 +08:00
Sebastien Bourdeauducq 5f083f21a4 rtio/dma: fix signal width 2017-10-08 22:37:46 +08:00
Sebastien Bourdeauducq 5437f0e3e3 rtio: make sequence errors consistently asychronous 2017-09-29 14:40:06 +08:00
Florent Kermarrec 2910b1be5e artiq/gateware/rtio/dma: replace leave_out with omit in Record.connect 2017-07-04 10:48:06 +02:00
Sebastien Bourdeauducq 838127d914 rtio: break DMA timing path 2017-07-02 10:24:01 +08:00
whitequark 391660e545 gateware: simplify the CRI arbiter to use a plain mux. 2017-04-05 15:09:19 +00:00
Sebastien Bourdeauducq b74d6fb9ba make collision and busy asynchronous errors, and simplify CPU/gateware handshake for output errors and reads 2017-03-27 16:32:23 +08:00
whitequark 4de336fbe9 gateware: reverse bytes of SDRAM word, not bits. 2017-03-17 11:16:46 +00:00
whitequark 6b63322106 gateware: reverse SDRAM words in RTIO DMA engine. 2017-03-17 07:29:28 +00:00
whitequark 4b14887ddb gateware: work around ISE/Vivado bugs with very wide shifts. 2017-03-17 07:29:28 +00:00
Sebastien Bourdeauducq 1e6a33b586 rtio: handle input timeout in gateware 
The information passed by the runtime will be used by the DRTIO core
to poll the remote side appropriately.
 2017-03-03 17:37:47 +08:00
Sebastien Bourdeauducq f3c50a37ca rtio: always read full DMA sequence 2016-12-06 01:05:47 +08:00
Sebastien Bourdeauducq c413d95b49 rtio: fix DMA get_csrs 2016-12-05 18:12:09 +08:00
Sebastien Bourdeauducq b677c69faf rtio: fix handling of o_status in DMA 2016-12-05 18:01:48 +08:00
Sebastien Bourdeauducq 75ea13748a rtio: fix DMA data MSB and stop signaling, self-checking unittest 2016-12-05 18:01:48 +08:00
Sebastien Bourdeauducq a5834765d0 rtio: more DMA fixes, better stopping mechanism 2016-12-05 18:01:48 +08:00
Sebastien Bourdeauducq 30bce5ad35 rtio: DMA fixes 2016-12-05 18:01:48 +08:00
Sebastien Bourdeauducq 3931d8097b rtio: fix DMA TimeOffset stream.connect 2016-12-01 16:43:46 +08:00
Sebastien Bourdeauducq 7c59688a12 rtio: simple DMA fixes 2016-12-01 16:30:48 +08:00
Sebastien Bourdeauducq cd3f68ba76 rtio: DMA core (untested) 2016-11-30 18:43:19 +08:00