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umtrx: add fifo_ctrl_window argument to specify window size

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This is for debugging issues with the fifo control on some systems which are seeing missing packets.
Running with --args="fifo_ctrl_window=0" will set the window size to nothing, which acks all outgoing packets ASAP.
This commit is contained in:
Josh Blum
2015-05-07 19:44:39 -07:00
parent 000a874189
commit 08c05c5f1b
3 changed files with 13 additions and 9 deletions
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3
host/umtrx_impl.cpp
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@@ -183,7 +183,8 @@ umtrx_impl::umtrx_impl(const device_addr_t &device_addr)
// high performance settings control
////////////////////////////////////////////////////////////////
_iface->poke32(U2_REG_MISC_CTRL_SFC_CLEAR, 1); //clear settings fifo control state machine
_ctrl = umtrx_fifo_ctrl::make(this->make_xport(UMTRX_CTRL_FRAMER, device_addr_t()), UMTRX_CTRL_SID);
const size_t fifo_ctrl_window(device_addr.cast<size_t>("fifo_ctrl_window", 1024)); //default gets clipped to hardware maximum
_ctrl = umtrx_fifo_ctrl::make(this->make_xport(UMTRX_CTRL_FRAMER, device_addr_t()), UMTRX_CTRL_SID, fifo_ctrl_window);
_ctrl->peek32(0); //test readback
_tree->create<time_spec_t>(mb_path / "time/cmd")
.subscribe(boost::bind(&umtrx_fifo_ctrl::set_time, _ctrl, _1));