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Fixed UDA reset behavior, a few things were not getting re-initialized. Adjusted timings. 2.11bsd boots/runs without

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apparent issues on 11/84.  Tested RT-11 on 11/84 and 11/05, mini-unix on 11/05.
This commit is contained in:
Josh Dersch
2019-05-07 03:20:58 +02:00
parent be3b6d57ed
commit 3204e65499
5 changed files with 321 additions and 29 deletions
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27
10.02_devices/2_src/uda.cpp
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@@ -19,6 +19,8 @@ uda_c::uda_c() :
_responseRingPointer(0),
_interruptVector(0),
_interruptEnable(false),
_purgeInterruptEnable(false),
_step1Value(0),
_initStep(InitializationStep::Uninitialized),
_next_step(false)
{
@@ -81,6 +83,18 @@ void uda_c::Reset(void)
_sa = 0;
update_SA();
_ringBase = 0;
_commandRingLength = 0;
_responseRingLength = 0;
_commandRingPointer = 0;
_responseRingPointer = 0;
_interruptVector = 0;
intr_vector.value = 0;
_interruptEnable = false;
_purgeInterruptEnable = false;
_next_step = false;
// Signal the worker to begin the initialization sequence.
StateTransition(InitializationStep::Uninitialized);
@@ -148,7 +162,7 @@ void uda_c::worker(void)
case InitializationStep::Step1:
// Wait 100uS, set SA.
timeout.wait_ms(100);
timeout.wait_us(1000);
INFO("Transition to Init state S1.");
//
@@ -163,7 +177,7 @@ void uda_c::worker(void)
case InitializationStep::Step2:
INFO("Transition to Init state S2.");
timeout.wait_ms(1000);
timeout.wait_us(1000);
// update the SA read value for step 2:
// S2 is set, unibus port type (0), SA bits 15-8 written
// by the host in step 1.
@@ -174,7 +188,7 @@ void uda_c::worker(void)
case InitializationStep::Step3:
// Wait 100uS, set SA.
timeout.wait_ms(1000);
timeout.wait_us(1000);
INFO("Transition to Init state S3.");
// Update the SA read value for step 3:
@@ -185,7 +199,7 @@ void uda_c::worker(void)
break;
case InitializationStep::Step4:
timeout.wait_ms(100);
timeout.wait_us(100);
// Clear communications area, set SA
INFO("Clearing comm area at 0x%x.", _ringBase);
@@ -269,7 +283,7 @@ uda_c::on_after_register_access(
{
// "When written with any value, it causes a hard initialization
// of the port and the device controller."
// INFO("Reset due to IP read");
DEBUG("Reset due to IP read");
Reset();
}
else
@@ -278,7 +292,7 @@ uda_c::on_after_register_access(
// to initiate polling..."
if (_initStep == InitializationStep::Complete)
{
INFO("Request to start polling.");
DEBUG("Request to start polling.");
_server->InitPolling();
}
}
@@ -742,7 +756,6 @@ uda_c::Interrupt(void)
{
if (_interruptEnable && _interruptVector != 0)
{
INFO("interrupt");
interrupt();
}
}