mirror of
https://github.com/RasppleII/a2cloud.git
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55c53b9c10
As noted, Ivan has agreed to allow these scripts to be relicensed under CC0. We have one file under LGPL (a unit file we lifted wholesake from systemd) and the ADTPro wrapper which I'm pretty sure Ivan wrote, but if he didn't we need to fix its license to be the same as ADTPro. Either way, to the best of my knowledge, this resolves the question of how things are licensed explicitly. (Closes #21)
70 lines
2.6 KiB
Bash
Executable File
70 lines
2.6 KiB
Bash
Executable File
#! /bin/bash
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# vim: set tabstop=4 shiftwidth=4 noexpandtab filetype=sh:
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# ttyusbhandler.sh - a2cloud udev handler for USB serial devices (to be replaced)
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#
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# To the extent possible under law, T. Joseph Carter and Ivan Drucker have
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# waived all copyright and related or neighboring rights to the a2cloud
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# scripts themselves. Software used or installed by these scripts is subject
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# to other licenses. This work is published from the United States.
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# called by udev as:
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# ttyusbhandler [add|remove] ttyUSBname
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# depending on what port ttyUSB adapter was added or removed from,
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# automatically launches or kills ADTPro as needed
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# restarts getty as needed
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# remove:
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# kill any ADTPro for this port
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# if a getty is on this port, do nothing here, it will be killed and respawn
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# iteself
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# add:
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# stagger adds by port number to prevent problems during simultaneous add at startup
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# if lower port, solo adapter on lower port USB hub, or lower port of any USB hub,
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# kill any ADTPro, rescan for getty if sleeping, and launch adtPro
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# if upper port, solo adapter on upper port USB hub, or higher port of any USB hub,
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# rescan for getty
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if [[ $1 == "remove" ]]; then
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rm /tmp/udev-$2-removed &> /dev/null
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touch /tmp/udev-$2-removed
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pkill -f "$2.*ADTPro"
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elif [[ $1 == "add" ]]; then
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[[ $2 == "ttyUSBlower" ]] && sleep 1.5
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[[ ${#2} -gt 11 ]] && sleep "${2:15:2}"
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if [[ $2 == "ttyUSBlower" || \
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$2 == $(ls -1 /dev/ttyUSBlower_hub* 2> /dev/null | head -1 | cut -c 6-) || \
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( ${2:0:12} == "ttyUSBlower_" && $2 != $(ls -1 /dev/ttyUSBupper_hub* 2> /dev/null | tail -1 | cut -c 6-) ) \
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]]; then
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rm /tmp/udev-ttyUSBlower-added &> /dev/null
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touch /tmp/udev-ttyUSBlower-added
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pkill -f "[A]DTPro"
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pkill -f "[u]sbgetty"
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exec echo "/usr/local/adtpro/adtpro.sh headless serial" | at -M now
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else # ttyUSBupper
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rm /tmp/udev-ttyUSBupper-added &> /dev/null
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touch /tmp/udev-ttyUSBupper-added
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pkill -f "[g]etty.*ttyUSB"
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if [[ -f /bin/systemctl ]]; then # if systemd
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# if USB-to-serial adapter is directly attached to upper port
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if [[ -c /dev/ttyUSBupper ]]; then
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ttyUSB=ttyUSBupper
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# if hub in upper port, use highest numbered port on hub
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elif [[ $(ls -1 /dev/ttyUSBupper_hub* 2> /dev/null | wc -l) -gt 0 ]]; then
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ttyUSB=$(ls -1 /dev/ttyUSBupper_hub* 2> /dev/null | tail -1 | cut -c 6-)
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# if hub in lower port with multiple adapters, use highest numbered port on hub
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elif [[ $(ls -1 /dev/ttyUSBlower_hub* 2> /dev/null | wc -l) -gt 1 ]]; then
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ttyUSB=$(ls -1 /dev/ttyUSBlower_hub* 2> /dev/null | tail -1 | cut -c 6-)
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else
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# by definition, this shouldn't happen
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ttyUSB=
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fi
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exec systemctl restart usbgetty@$ttyUSB
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fi
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fi
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else
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exit 2
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fi
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