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|
#!/bin/sh
new_directory="/sys/kernel/config/usb_gadget/obmc_input"
if [ -e "${new_directory}" ]; then
exit 0
fi
# create gadget
original_directory="$(pwd)"
mkdir "${new_directory}"
cd "${new_directory}"
# add basic information
echo 0x0100 > bcdDevice
echo 0x0200 > bcdUSB
echo 0x0104 > idProduct # Multifunction Composite Gadget
echo 0x1d6b > idVendor # Linux Foundation
# create English locale
mkdir strings/0x409
echo "OpenBMC" > strings/0x409/manufacturer
echo "virtual_input" > strings/0x409/product
echo "OBMC0001" > strings/0x409/serialnumber
# Create HID keyboard function
mkdir functions/hid.0
echo 1 > functions/hid.0/protocol # 1: keyboard
echo 8 > functions/hid.0/report_length
echo 1 > functions/hid.0/subclass
# Binary HID keyboard descriptor
# 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
# 0x09, 0x06, // USAGE (Keyboard)
# 0xa1, 0x01, // COLLECTION (Application)
# 0x05, 0x07, // USAGE_PAGE (Keyboard)
# 0x19, 0xe0, // USAGE_MINIMUM (Keyboard LeftControl)
# 0x29, 0xe7, // USAGE_MAXIMUM (Keyboard Right GUI)
# 0x15, 0x00, // LOGICAL_MINIMUM (0)
# 0x25, 0x01, // LOGICAL_MAXIMUM (1)
# 0x75, 0x01, // REPORT_SIZE (1)
# 0x95, 0x08, // REPORT_COUNT (8)
# 0x81, 0x02, // INPUT (Data,Var,Abs)
# 0x95, 0x01, // REPORT_COUNT (1)
# 0x75, 0x08, // REPORT_SIZE (8)
# 0x81, 0x03, // INPUT (Data,Var,Abs)
# 0x95, 0x05, // REPORT_COUNT (5)
# 0x75, 0x01, // REPORT_SIZE (1)
# 0x05, 0x08, // USAGE_PAGE (LEDs)
# 0x19, 0x01, // USAGE_MINIMUM (Num Lock)
# 0x29, 0x05, // USAGE_MAXIMUM (Kana)
# 0x91, 0x02, // OUTPUT (Data,Var,Abs)
# 0x95, 0x01, // REPORT_COUNT (1)
# 0x75, 0x03, // REPORT_SIZE (3)
# 0x91, 0x03, // OUTPUT (Cnst,Var,Abs)
# 0x95, 0x06, // REPORT_COUNT (6)
# 0x75, 0x08, // REPORT_SIZE (8)
# 0x15, 0x00, // LOGICAL_MINIMUM (0)
# 0x25, 0x65, // LOGICAL_MAXIMUM (101)
# 0x05, 0x07, // USAGE_PAGE (Keyboard)
# 0x19, 0x00, // USAGE_MINIMUM (Reserved (no event indicated))
# 0x29, 0x65, // USAGE_MAXIMUM (Keyboard Application)
# 0x81, 0x00, // INPUT (Data,Ary,Abs)
# 0xc0 // END_COLLECTION
echo -ne '\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' > functions/hid.0/report_desc
# Create HID mouse function
mkdir functions/hid.1
echo 2 > functions/hid.1/protocol # 2: mouse
echo 5 > functions/hid.1/report_length
echo 1 > functions/hid.1/subclass
# Binary HID mouse descriptor (absolute coordinate)
# 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
# 0x09, 0x02, // USAGE (Mouse)
# 0xa1, 0x01, // COLLECTION (Application)
# 0x09, 0x01, // USAGE (Pointer)
# 0xa1, 0x00, // COLLECTION (Physical)
# 0x05, 0x09, // USAGE_PAGE (Button)
# 0x19, 0x01, // USAGE_MINIMUM (Button 1)
# 0x29, 0x03, // USAGE_MAXIMUM (Button 3)
# 0x15, 0x00, // LOGICAL_MINIMUM (0)
# 0x25, 0x01, // LOGICAL_MAXIMUM (1)
# 0x95, 0x03, // REPORT_COUNT (3)
# 0x75, 0x01, // REPORT_SIZE (1)
# 0x81, 0x02, // INPUT (Data,Var,Abs)
# 0x95, 0x01, // REPORT_COUNT (1)
# 0x75, 0x05, // REPORT_SIZE (5)
# 0x81, 0x03, // INPUT (Cnst,Var,Abs)
# 0x05, 0x01, // USAGE_PAGE (Generic Desktop)
# 0x09, 0x30, // USAGE (X)
# 0x09, 0x31, // USAGE (Y)
# 0x35, 0x00, // PHYSICAL_MINIMUM (0)
# 0x46, 0xff, 0x7f, // PHYSICAL_MAXIMUM (32767)
# 0x15, 0x00, // LOGICAL_MINIMUM (0)
# 0x26, 0xff, 0x7f, // LOGICAL_MAXIMUM (32767)
# 0x65, 0x11, // UNIT (SI Lin:Distance)
# 0x55, 0x00, // UNIT_EXPONENT (0)
# 0x75, 0x10, // REPORT_SIZE (16)
# 0x95, 0x02, // REPORT_COUNT (2)
# 0x81, 0x02, // INPUT (Data,Var,Abs)
# 0xc0, // END_COLLECTION
# 0xc0 // END_COLLECTION
echo -ne '\x05\x01\x09\x02\xa1\x01\x09\x01\xa1\x00\x05\x09\x19\x01\x29\x03\x15\x00\x25\x01\x95\x03\x75\x01\x81\x02\x95\x01\x75\x05\x81\x03\x05\x01\x09\x30\x09\x31\x35\x00\x46\xff\x7f\x15\x00\x26\xff\x7f\x65\x11\x55\x00\x75\x10\x95\x02\x81\x02\xc0\xc0' > functions/hid.1/report_desc
# Create configuration
mkdir configs/c.1
mkdir configs/c.1/strings/0x409
echo 0x80 > configs/c.1/bmAttributes
echo 200 > configs/c.1/MaxPower
echo "" > configs/c.1/strings/0x409/configuration
# Link HID functions to configuration
ln -s functions/hid.0 configs/c.1
ln -s functions/hid.1 configs/c.1
# Enable gadget
dev_name="1e6a0000.usb-vhub"
i=0
num_ports=5
base_usb_dir="/sys/bus/platform/devices/${dev_name}/${dev_name}:p"
while [ $i -lt $num_ports ]; do
port=$(($i + 1))
i=$port
if [ ! -e "${base_usb_dir}${port}/gadget/suspended" ]; then
break
fi
done
echo "${dev_name}:p${port}" > UDC
cd "${original_directory}"
|
