| #!/bin/sh |
| |
| hid_conf_directory="/sys/kernel/config/usb_gadget/obmc_hid" |
| dev_name="80401000.udc" |
| |
| create_hid() { |
| # create gadget |
| mkdir "${hid_conf_directory}" |
| cd "${hid_conf_directory}" || exit 1 |
| |
| # 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 |
| printf '\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 6 > 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) |
| # 0x09, 0x38, // Usage (Wheel) |
| # 0x15, 0xff, // LOGICAL_MINIMUM (-1) |
| # 0x25, 0x01, // LOGICAL_MAXIMUM (1) |
| # 0x35, 0x00, // PHYSICAL_MINIMUM (-127) |
| # 0x45, 0x00, // PHYSICAL_MAXIMUM (127) |
| # 0x75, 0x08, // REPORT_SIZE (8) |
| # 0x95, 0x01, // REPORT_COUNT (1) |
| # 0x81, 0x06, // INPUT (Data,Var,Rel) |
| # 0xc0, // END_COLLECTION |
| # 0xc0 // END_COLLECTION |
| printf '\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\x09\x38\x15\xff\x25\x01\x35\x00\x45\x00\x75\x08\x95\x01\x81\x06\xc0\xc0' > functions/hid.1/report_desc |
| |
| # Create configuration |
| mkdir configs/c.1 |
| mkdir configs/c.1/strings/0x409 |
| |
| echo 0xe0 > 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 |
| } |
| |
| connect_hid() { |
| if ! grep -q "${dev_name}" UDC; then |
| echo "${dev_name}" > UDC |
| fi |
| } |
| |
| disconnect_hid() { |
| if grep -q "${dev_name}" UDC; then |
| echo "" > UDC |
| fi |
| } |
| |
| if [ ! -e "${hid_conf_directory}" ]; then |
| create_hid |
| else |
| cd "${hid_conf_directory}" || exit 1 |
| fi |
| |
| if [ "$1" = "connect" ]; then |
| connect_hid |
| elif [ "$1" = "disconnect" ]; then |
| disconnect_hid |
| else |
| echo >&2 "Invalid option: $1. Use 'connect' or 'disconnect'." |
| exit 1 |
| fi |