sysops:
  BEGIN_DOWNLOAD:
    desc: "Begin download (from PC to VM)"
    value: 0x92
    params:
      -
        name: SIZE
        type: U32
        dir: in
      -
        name: FILENAME
        type: ZBYTES
        dir: in
      -
        name: HANDLE
        type: U8
        dir: out

  CONTINUE_DOWNLOAD:
    desc: "Continue download (from PC to VM)"
    value: 0x93
    # EXAMPLE: no reply required (0x81)
    params:
      -
        name: HANDLE
        type: U8
        dir: in
      -
        name: PAYLOAD
        type: BYTES
        dir: in
      -
        name: HANDLE
        type: U8
        dir: out

  BEGIN_UPLOAD:
    desc: "Begin upload (from VM to PC)"
    value: 0x94
    params:
      -
        name: BUF_SIZE
        type: U16
        dir: in
      -
        name: FILENAME
        type: ZBYTES
        dir: in
      -
        name: FILE_SIZE
        type: U32
        dir: out
      -
        name: HANDLE
        type: U8
        dir: out
      -
        name: PAYLOAD
        type: BYTES
        dir: out

  CONTINUE_UPLOAD:
    desc: "Continue upload (from VM to PC)"
    value: 0x95
    params:
      -
        name: HANDLE
        type: U8
        dir: in
      -
        name: BUF_SIZE
        type: U16
        dir: in
      -
        name: HANDLE
        type: U8
        dir: out
      -
        name: PAYLOAD
        type: BYTES
        dir: out

  BEGIN_GETFILE:
    desc: "datalog to PC"
    value: 0x96
    params:
      -
        name: BUF_SIZE
        type: U16
        dir: in
      -
        name: FILENAME
        type: ZBYTES
        dir: in
      -
        name: FILE_SIZE
        type: U32
        dir: out
      -
        name: HANDLE
        type: U8
        dir: out
      -
        name: PAYLOAD
        type: BYTES
        dir: out

  CONTINUE_GETFILE:
    desc: "Continue getting a dafalog file (from VM to PC)"
    value: 0x97
    params:
      -
        name: HANDLE
        type: U8
        dir: in
      -
        name: BUF_SIZE
        type: U16
        dir: in
      -
        name: FILE_SIZE
        type: U32
        dir: out
      -
        name: HANDLE
        type: U8
        dir: out
      -
        name: PAYLOAD
        type: BYTES
        dir: out

  CLOSE_FILEHANDLE:
    desc: "Close a file handle"
    value: 0x98
    params:        
      -
        name: HANDLE
        type: U8
        dir: in
      -
        name: HASH
        type: BYTES
        desc: "WTF, hash?"
        dir: in

  LIST_FILES:
    desc: "List files"
    value: 0x99
    params:
      -
        name: BUF_SIZE
        type: U16
        dir: in
      -
        name: FILENAME
        type: ZBYTES
        dir: in
      -
        name: LIST_SIZE
        type: U32
        dir: out
      -
        name: HANDLE
        type: U8
        dir: out
      -
        name: PAYLOAD
        type: BYTES
        dir: out

  CONTINUE_LIST_FILES:
    desc: "Continue listing files"
    value: 0x9a
    params:
      -
        name: HANDLE
        type: U8
        dir: in
      -
        name: BUF_SIZE
        type: U16
        dir: in
      -
        name: HANDLE
        type: U8
        dir: out
      -
        name: PAYLOAD
        type: BYTES
        dir: out

  CREATE_DIR:
    desc: "Create a directory"
    value: 0x9b
    params:
      -
        name: FILENAME
        desc: "Full path"
        type: ZBYTES
        dir: in

  DELETE_FILE:
    desc: "Delete a file"
    value: 0x9c
    params:
      -
        name: FILENAME
        desc: "Full path"
        type: ZBYTES
        dir: in

  LIST_OPEN_HANDLES:
    desc: "Get a list of open handles"
    value: 0x9d
    params:
      -
        name: HANDLE_BITS
        desc: "bits indicating whether handles are busy (open) or not."
        type: BYTES
        dir: out

  WRITE_MAILBOX:
    # NO REPLY
    desc: "Write to a mailbox"
    value: 0x9e
    params:
      -
        name: NAME_LENGTH
        type: U8
        dir: in
      -
        name: NAME
        type: ZBYTES
        dir: in
      -
        name: PAYLOAD_SIZE
        type: U16
        dir: in
      -
        name: PAYLOAD
        type: BYTES
        dir: in
      
  BLUETOOTH_PIN:
    desc: "Set the Bluetooth PIN code"
    value: 0x9f
    params:
      -
        name: MAC_LENGTH
        desc: "Length of MAC, not including the NUL terminator"
        type: U8
        dir: in
      -
        name: MAC
        type: BYTES
        dir: in
      -
        name: PIN_LENGTH
        desc: "Length of PIN, not including the NUL terminator"
        type: U8
        dir: in
      -
        name: PIN
        type: BYTES
        dir: in
      -
        name: MAC_LENGTH
        desc: "Length of MAC, not including the NUL terminator"
        type: U8
        dir: out
      -
        name: MAC
        type: BYTES
        dir: out
      -
        name: PIN_LENGTH
        desc: "Length of PIN, not including the NUL terminator"
        type: U8
        dir: out
      -
        name: PIN
        type: BYTES
        dir: out
    
  ENTER_FW_UPDATE:
    # NO REPLY
    desc: "Enter Firmware update mode"
    value: 0xa0
    params: []