mirror of
https://github.com/openglow-org/forgefirm.git
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ScottW514
cd8a01a3d9
The remaining bench diagnostics run from forgetest's #bench tab. The tools that also run from a LAN host share scripts/bench/gfbench.py: GF_HOST names a remote machine (host mode, sysfs through ssh, Grbl and forgectrl over the LAN); unset, the tool runs on the board itself (local mode, sysfs directly, everything on 127.0.0.1), which is how the page runs them - with GF_HOST=127.0.0.1, the panel token in GF_TOKEN and their data files under <data>/bench/ (FORGETEST_BENCH_DATA). The helper also reads a machine setting from forgectrl, or from the settings file on the board while forgectrl is stopped. Ported: pwm_sweep / pwm_hold (scope = a takeover; the latch relocked, the write refused if FIRE or LASER_ON reads active), pwm_stream_test (PASS/FAIL exit), flow_characterize, flow_recheck_char, flow_warm_validate and flow_matrix (takeovers: forgectrl owns the thermal hardware, so the page's takeover replaces the tools' own controller stop/restart, whose command line predated the supervisor; results and logs in the bench data directory), flow_sustained, fan_test, temp_calibrate (dry; watch bounded in seconds; the threshold and the coolant conversion from the shared code), flow_escalate_drill (cool_confirm_max_s shortened through forgectrl's settings for the drill and restored; the setting's minimum is the default budget), and live_fire_drills (<drill> [S] [F], all six drills, host from GF_HOST, token from the board). flow_matrix joins the registry. What stays unported cannot run against the machine at all: the two null-sink CI harnesses and the .puls decoder. Runner: a scope tool runs inside the takeover wrapper; the bench environment above is passed to every tool. Tests: test_bench_registry (registry <-> scripts/bench consistency, every ported tool builds its command line, every script compiles, gfbench host/local modes) and the server test (scope tool takeover, the environment reaching the tool). Local mode smoke-run on the bench (temp_calibrate watch, setting, token) from /tmp, removed after. No catalog consequence: bench tools are not image components (dev-only forgetest); the acceptance catalog is unchanged.
53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
#!/usr/bin/env python3
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"""Hold LASER_PWM at one duty value for a measurement window, then restore.
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Usage: pwm_hold.py [sar] [seconds] (defaults: 8, 30)
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The duty register (PWMSAR) is the laser power SETPOINT only. Locked
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state only: run with the controller and forgectrl stopped (the bench
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page's takeover), the pulse device closed. The latch is relocked here
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as well, and the hold refuses to write if the FIRE line reads driven or
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LASER_ON reads active."""
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import mmap, struct, sys, time
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PWM2_BASE = 0x02084000
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SAR_OFF = 0x0C
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sar = int(sys.argv[1]) if len(sys.argv) > 1 else 8
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secs = int(sys.argv[2]) if len(sys.argv) > 2 else 30
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def rd(name):
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with open('/sys/glowforge/' + name) as f:
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return f.read().strip()
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def wr(name, val):
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with open('/sys/glowforge/' + name, 'w') as f:
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f.write(str(val))
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try:
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wr('cnc/laser_latch', 1)
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except OSError as e:
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raise SystemExit('could not lock the laser latch: %s' % e)
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time.sleep(0.2)
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en, on = rd('cnc/laser_enable'), rd('cnc/laser_on')
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if en != '0' or on != '0':
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raise SystemExit('not the locked state: laser_enable=%s laser_on=%s' % (en, on))
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with open('/dev/mem', 'r+b') as f:
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m = mmap.mmap(f.fileno(), 4096, mmap.MAP_SHARED,
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mmap.PROT_READ | mmap.PROT_WRITE, offset=PWM2_BASE)
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sar0 = struct.unpack('<I', m[SAR_OFF:SAR_OFF + 4])[0]
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m[SAR_OFF:SAR_OFF + 4] = struct.pack('<I', sar)
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print('PWMSAR=%d held for %d s (was %d)...' % (sar, secs, sar0))
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sys.stdout.flush()
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try:
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time.sleep(secs)
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finally:
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m[SAR_OFF:SAR_OFF + 4] = struct.pack('<I', sar0)
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print('restored PWMSAR=%d' % sar0)
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print('laser_enable=%s laser_on=%s laser_on_sampled=%s'
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% (rd('cnc/laser_enable'), rd('cnc/laser_on'), rd('cnc/laser_on_sampled')))
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m.close()
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