Split the planner sync code out of planner_abort_hard() so that we can
independently resync the planner position from the counters.
This is needed in xyzcal as we directly modify the stepper counters
(bypassing both planner and stepper).
Call this new function instead of planner_abort_hard() when leaving, so
that motion can resume in the middle of the gcode_M45 instruction.
We already disable the heaters upon entering, and the new temperature
isr doesn't perform any direct movement until we return to the main
loop.
This allows us to remove direct control of the soft_pwm interrupt from
the header, which is dangerous.
printer_smodel_check was incorrectly substituting the final " with a
null in the command to simplify the model string comparison, but in
doing so was also corrupting the next pop from the cmdqueue.
We can modify the current strchr_pointer as long as we *don't* change
it's length. This can cause an incorrect extra read from the queue,
resulting in the last command to be completely ignored.
cmdqueue will run commands when EOF is reached without returning to the
main loop, which is already incorrect.
However, since it needs to ensure the queue is empty, an st_synchronize
call can result in a re-entrant call to get_command, which will
reprocess EOF again. Even if we removed st_synchronize, another command
could be picked by an unsuspecting manage_inactivity() somewhere else.
Short-circuit EOF processing by closing the file early and checking for
the file state early in get_command.
This should fix#3549
Call this variable menu_block_mask instead. We don't need to know the
exact reason of why we're locking the menu.
We will be able to reuse this to prevent menu entry during more
activities in a cleaner way than testing for each condition as it's
currently done for both menu entry and longpress.
This allows us to use "M310 B0 W0.01" as a way to report the current
error continuosly on the serial without 1) more code and 2) without
preventing regular usage.
Use OCTOPRINT_ASK_* for the present form of actions. In these cases the
host will perform the pausing manouvers for us.
Use OCTOPRINT_* instead for the past tense forms when we are in charge.
Also always emit the action, whether we are or not sd-printing. This is
due to the new Stopped handling behaving correctly in either case.
If the user accepted to resume, do not wait for bed temperature when
recovering. This only adds a pointless delay when recovering a short
pause and doesn't really improve the recovery quality after a long
pause.
Do not allow resuming until all thermal and fan errors are clear.
Call the appropriate resume function when resuming a printing depending
on the saved_print state (is saved_print is available, then we always
need to resume from the saved state even when printing via usb).
Clear the Stopped state when resuming, so that commands can be accepted
again.
Ensure we never fall into the boundary values provided by the min/max
limits.
Save/restore the initial guess value, so that a convergence failure
restores the initial model state.
Force processing of the pause and stop "parking" commands _after_ the
main loop completes.
This was/is currently done in lcd_commands, which is a poor place to
continue processing, since it can be called already within an aborted
command. This requires checking for planner_aborted before any action
can be performed.
After calling planner_abort_hard() no motion command can be
scheduled until we return to the main loop since the call can
potentially be scheduled inside a nested process_command call.
Despite previous fixes, bugs keep creeping in due to nested calls not
being obvious to detect at all.
Stop allowing motion _completely_ for the entire processing loop by
default. That is, instead of aborting the current plan_buffer_line call,
abort the entire command until we can actually schedule motion safely
again.
This benefits handling of pretty much all g/m-codes, since this flag
(now "planner_aborted" for clarity) becomes a general "command aborted"
call.
This also now ensures that the flag prevents _any_ new block (including
blocks partially planned while servicing an interrupt) are scheduled
after planner_abort_hard is called.
There are only two exceptions where it's safe to resume in this context:
- Within uvlo_, where we never return to the main processing loop
- When we're intentionally scheduling a new process_command loop for a
MK3 filament recheck (which is *bad*)
Handle those two cases as exceptions.
Do not inhibit motion when Stopped is set.
We actually do need to move to move away the extruder from the bed, and
setting Stopped breaks it without adding any sort of security (M*
commands, such as M600 could still perform moves and still pass
through, while M104 would still set heaters).
During a hard error the internal queue is cleared (and sd file closed,
if any), so no new "unforeseen" command can be read.
Handle "Stopped" instead as a flag to inhibit serial processing and
automatically switch to "paused for user" state. While in this state
simply drop any input without incrementing the processed gcode line
number, behaving as-if the last command was still being processed.
This allows "Stopped" to correctly handle a printer-initiated paused
state and recover as expected by requesting a resend when resuming.
Add a new LCD_MESSAGE_INFO priority which can be overridden by regular
status updates, but only if a certain amount of time has passed.
Assign a time stamp to all message updates, so that the time since the
last update can be determined. Also switch the message type to Status,
so that the message always becomes visibile.
Always show status or info messages when printing via SD if the message
is recent enough.
