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raspi-freezer
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gadged configuration with libcomposite

main
Hendrik Langer 6 years ago
parent
6e8d0d77e5
commit
e22c3eb530
2 changed files with 85 additions and 3 deletions
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  1. 6
      README.md
  2. 82
      raspberry-environment/display.py

6
README.md
View File

@ -49,10 +49,13 @@ apt clean
echo "dtoverlay=dwc2" >> /boot/config.txt
add "console=tty3" to /boot/cmdline.txt
echo "libcomposite" >> /etc/modules
add/change "console=tty3 quiet" to /boot/cmdline.txt
(console=tty3 loglevel=3 vt.global_cursor_default=0 logo.nologo
copy everything to /opt/freezer/
chmod a+x /opt/freezer/display.py
add to /etc/rc.local: python3 /opt/freezer/display.py
### read-only root
@ -75,3 +78,4 @@ mount -o remount,rw /boot
* dritte led für boot?: dtoverlay=gpio-poweroff,gpiopin=23,active_low
* gpio pins ändern
* screenshot-tool option für sofortigen screenshot
* hdmi auch wenn nach boot eingesteckt aktivieren

82
raspberry-environment/display.py
View File

@ -112,6 +112,19 @@ def watch_delay_call(
break
def os_echo(filename, string):
with open(filename, 'w') as f:
f.write(string)
def send_keypress():
with open('/dev/hidg0', 'w') as f:
f.write("\x00\x00\x04\x00\x00\x00\x00\x00") #press the A-button
f.write("\x00\x00\x00\x00\x00\x00\x00\x00") #release all keys
if __name__ == '__main__':
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.OUT)
@ -130,7 +143,64 @@ if __name__ == '__main__':
subprocess.run('cp /opt/freezer/freeze.exe /mnt/', shell=True, check=True)
subprocess.run(['umount', '/mnt'], shell=False, check=True)
subprocess.run(['modprobe', 'g_mass_storage', 'file=/tmp/usbdisk.img', 'stall=0', 'removable=1', 'iSerialNumber=1234567890'], shell=False, check=True)
# http://irq5.io/2016/12/22/raspberry-pi-zero-as-multiple-usb-gadgets/
# http://isticktoit.net/?p=1383
subprocess.run(['modprobe', 'libcomposite'], shell=False, check=True)
g="/sys/kernel/config/usb_gadget/freezer/"
subprocess.run(['mkdir', g], shell=False, check=True)
os_echo(g+"idVendor", "0x1d6b") # Linux Foundation
os_echo(g+"idProduct", "0x0104") # Multifunction Composite Gadget
os_echo(g+"bcdDevice", "0x0100") # v1.0.0
os_echo(g+"bcdUSB", "0x0200") # USB 2.0
os_echo(g+"bDeviceClass", "0xEF") # windows enumeration install
os_echo(g+"bDeviceSubClass", "0x02") # correct bus driver
os_echo(g+"bDeviceProtocol", "0x01") # for multi function
subprocess.run(['mkdir', g+"strings/0x409"], shell=False, check=True)
os_echo(g+"strings/0x409/serialnumber", "34812ee8aa112377") # random
os_echo(g+"strings/0x409/manufacturer", "IUL TU Dortmund")
os_echo(g+"strings/0x409/product", "Raspberry Screenshot Gadget")
# config usb_mass_storage
subprocess.run(['mkdir', g+"functions/mass_storage.usb0"], shell=False, check=True)
os_echo(g+"functions/mass_storage.usb0/stall", "0")
os_echo(g+"functions/mass_storage.usb0/lun.0/cdrom", "0")
os_echo(g+"functions/mass_storage.usb0/lun.0/ro", "0")
os_echo(g+"functions/mass_storage.usb0/lun.0/nofua", "0")
os_echo(g+"functions/mass_storage.usb0/lun.0/removable", "1")
os_echo(g+"functions/mass_storage.usb0/lun.0/file", "/tmp/usbdisk.img")
subprocess.run(['mkdir', g+"configs/c.1"], shell=False, check=True)
os_echo(g+"configs/c.1/MaxPower", "250")
subprocess.run(['ln', '-s', g+"functions/mass_storage.usb0", g+"configs/c.1"], shell=False, check=True)
# config keyboard
subprocess.run(['mkdir', g+"functions/hid.usb0"], shell=False, check=True)
os_echo(g+"functions/hid.usb0/protocol", "1")
os_echo(g+"functions/hid.usb0/subclass", "1")
os_echo(g+"functions/hid.usb0/report_length", "8")
os_echo(g+"functions/hid.usb0/report_desc", "\x05\x01\x09\x06\xa1\x01\x05\x07\x19\xe0\x29\xe7\x15\x00\x25\x01\x75\x01\x95\x08\x81\x02\x95\x01\x75\x08\x81\x03\x95\x05\x75\x01\x05\x08\x19\x01\x29\x05\x91\x02\x95\x01\x75\x03\x91\x03\x95\x06\x75\x08\x15\x00\x25\x65\x05\x07\x19\x00\x29\x65\x81\x00\xc0")
subprocess.run(['mkdir', g+"configs/c.2"], shell=False, check=True)
os_echo(g+"configs/c.2/MaxPower", "250")
subprocess.run(['ln', '-s', g+"functions/hid.usb0", g+"configs/c.2"], shell=False, check=True)
#subprocess.run(['ln', '-s', g+"configs/c.1", g+"os_desc"], shell=False, check=True)
subprocess.run(['ls /sys/class/udc/ > '+g+'UDC'], shell=True, check=True)
# RNDIS OS descriptors
#os_echo(g+"os_desc/use", "1")
#os_echo(g+"os_desc/b_vendor_code", "0xcd")
#os_echo(g+"os_desc/qw_sign", "MSFT100")
#subprocess.run(['mkdir', g+"functions/rndis.usb0"], shell=False, check=True)
#os_echo(g+"functions/rndis.usb0/os_desc/interface.rndis/compatible_id", "RNDIS")
#os_echo(g+"functions/rndis.usb0/os_desc/interface.rndis/sub_compatible_id", "5162001")
#tvservice -p
# tvservice -e "DMT 82"
# fbset -g 1920 1080 1920 1080 16
@ -164,6 +234,14 @@ if __name__ == '__main__':
GPIO.output(18, GPIO.LOW)
subprocess.run(['killall', 'fim'], shell=False, check=False)
subprocess.run(['umount', '/mnt'], shell=False, check=False)
subprocess.run(['modprobe', '-r', 'g_mass_storage'], shell=False, check=False)
os_echo(g+"UDC", "")
time.sleep(0.5)
subprocess.run(['rmdir', g+"configs/c.2"], shell=False, check=True)
subprocess.run(['rmdir', g+"configs/c.1"], shell=False, check=True)
subprocess.run(['rmdir', g+"functions/mass_storage.usb0"], shell=False, check=True)
subprocess.run(['rmdir', g+"strings/0x409"], shell=False, check=True)
subprocess.run(['rmdir', g], shell=False, check=True)
subprocess.run(['modprobe', '-r', 'usb_f_mass_storage'], shell=False, check=False)
subprocess.run(['modprobe', '-r', 'libcomposite'], shell=False, check=False)
sys.exit(0)

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