General firmware section for the Rock64?
Sure. I'm using LibreELEC with Kodi's bundled LCDproc addon. The following LCD.conf gets the LCD working with the "stock" wiring to the GPIO pins as the unit is shipped. I would expect it to work with "vanilla" LCDproc as well.
Code:
# LCDd.conf -- configuration file for the LCDproc server daemon LCDd
#
# This file contains the configuration for the LCDd server.
#
# The format is ini-file-like. It is divided into sections that start at
# markers that look like [section]. Comments are all line-based comments,
# and are lines that start with '#' or ';'.
#
# The server has a 'central' section named [server]. For the menu there is
# a section called [menu]. Further each driver has a section which
# defines how the driver acts.
#
# The drivers are activated by specifying them in a driver= line in the
# server section, like:
#
# Driver=curses
#
# This tells LCDd to use the curses driver.
# The first driver that is loaded and is capable of output defines the
# size of the display. The default driver to use is curses.
# If the driver is specified using the -d <driver> command line option,
# the Driver= options in the config file are ignored.
#
# The drivers read their own options from the respective sections.
## Server section with all kinds of settings for the LCDd server ##
[server]
# Where can we find the driver modules ?
# IMPORTANT: Make sure to change this setting to reflect your
# specific setup! Otherwise LCDd won't be able to find
# the driver modules and will thus not be able to
# function properly.
# NOTE: Always place a slash as last character !
DriverPath=/storage/.kodi/addons/service.lcdd/lib/lcdproc/
# Tells the server to load the given drivers. Multiple lines can be given.
# The name of the driver is case sensitive and determines the section
# where to look for further configuration options of the specific driver
# as well as the name of the dynamic driver module to load at runtime.
# The latter one can be changed by giving a File= directive in the
# driver specific section.
#
# The following drivers are supported:
# bayrad, CFontz, CFontzPacket, curses, CwLnx, ea65, EyeboxOne, futaba,
# g15, glcd, glcdlib, glk, hd44780, icp_a106, imon, imonlcd,, IOWarrior,
# irman, joy, lb216, lcdm001, lcterm, linux_input, lirc, lis, MD8800,
# mdm166a, ms6931, mtc_s16209x, MtxOrb, mx5000, NoritakeVFD,
# Olimex_MOD_LCD1x9, picolcd, pyramid, rawserial, sdeclcd, sed1330,
# sed1520, serialPOS, serialVFD, shuttleVFD, sli, stv5730, svga, t6963,
# text, tyan, ula200, vlsys_m428, xosd, yard2LCD
Driver=hd44780
# Tells the driver to bind to the given interface. [default: 127.0.0.1]
Bind=127.0.0.1
# Listen on this specified port. [default: 13666]
Port=13666
# Sets the reporting level; defaults to warnings and errors only.
# [default: 2; legal: 0-5]
ReportLevel=3
# Should we report to syslog instead of stderr? [default: no; legal: yes, no]
ReportToSyslog=yes
# User to run as. LCDd will drop its root privileges and run as this user
# instead. [default: nobody]
User=root
# The server will stay in the foreground if set to yes.
# [default: no, legal: yes, no]
Foreground=yes
# Hello message: each entry represents a display line; default: builtin
Hello=" Welcome to"
Hello=" LibreELEC"
# GoodBye message: each entry represents a display line; default: builtin
GoodBye="Thanks for using"
GoodBye=" LibreELEC"
# Sets the interval in microseconds for updating the display.
# [default: 125000 meaning 8Hz]
#FrameInterval=125000
# Sets the default time in seconds to displays a screen. [default: 4]
WaitTime=5
# If set to no, LCDd will start with screen rotation disabled. This has the
# same effect as if the ToggleRotateKey had been pressed. Rotation will start
# if the ToggleRotateKey is pressed. Note that this setting does not turn off
# priority sorting of screens. [default: on; legal: on, off]
#AutoRotate=off
# If yes, the the serverscreen will be rotated as a usual info screen. If no,
# it will be a background screen, only visible when no other screens are
# active. The special value 'blank' is similar to no, but only a blank screen
# is displayed. [default: on; legal: on, off, blank]
ServerScreen=blank
# Set master backlight setting. If set to 'open' a client may control the
# backlight for its own screens (only). [default: open; legal: off, open, on]
Backlight=open
# Set master heartbeat setting. If set to 'open' a client may control the
# heartbeat for its own screens (only). [default: open; legal: off, open, on]
Heartbeat=open
# set title scrolling speed [default: 10; legal: 0-10]
TitleSpeed=4
# The "...Key=" lines define what the server does with keypresses that
# don't go to any client. The ToggleRotateKey stops rotation of screens, while
# the PrevScreenKey and NextScreenKey go back / forward one screen (even if
# rotation is disabled.
# Assign the key string returned by the driver to the ...Key setting. These
# are the defaults:
ToggleRotateKey=Enter
PrevScreenKey=Left
NextScreenKey=Right
#ScrollUpKey=Up
#ScrollDownKey=Down
## The menu section. The menu is an internal LCDproc client. ##
[menu]
# If true the server allows transitions between different client's menus
# [default: false; legal: true, false]
#PermissiveGoto=false
# You can configure what keys the menu should use. Note that the MenuKey
# will be reserved exclusively, the others work in shared mode.
# Up to six keys are supported. The MenuKey (to enter and exit the menu), the
# EnterKey (to select values) and at least one movement keys are required.
# These are the default key assignments:
MenuKey=Escape
EnterKey=Enter
UpKey=Up
DownKey=Down
#LeftKey=Left
#RightKey=Right
[hd44780]
# Select what type of connection. See documentation for available types.
ConnectionType=i2c
# Select model if have non-standard one which require extra initialization or handling or
# just want extra features it offers.
# Available: standard (default), extended, winstar_oled, pt6314_vfd
# - standard is default, use for LCDs not mentioned below.
# - extended, hd66712, ks0073: allows use 4-line "extended" mode,
# same as deprecated now option ExtendedMode=yes
# - winstar_oled, weh00xxyya: changes initialization for WINSTAR's WEH00xxyyA displays
# and allows handling brightness
# - pt6314_vfd: allows handling brightness on PTC's PT6314 VFDs
#
# This option should be independent of connection type.
#Model = standard
# I/O address of the LPT port. Usual values are: 0x278, 0x378 and 0x3BC.
# For I2C connections this sets the slave address (usually 0x20).
Port=0x27
# Device of the serial, I2C, or SPI interface [default: /dev/lcd]
Device=/dev/i2c-1
# Bitrate of the serial port (0 for interface default)
Speed=0
# If you have a keypad connected.
# You may also need to configure the keypad layout further on in this file.
Keypad=no
# Set the initial contrast (bwctusb, lcd2usb, and usb4all)
# [default: 800; legal: 0 - 1000]
#Contrast=0
# Set brightness of the backlight (lcd2usb and usb4all):
# Brightness is the brightness while the backlight is set to 'on'.
# [default: 800; legal: 0 - 1000]
#Brightness=1000
# OffBrightness is the brightness while the backlight is set to 'off'.
# [default: 300; legal: 0 - 1000]
#OffBrightness=0
# Specify if you have a switchable backlight and if yes, can select method for turning it on/off:
#
# - none - no switchable backlight is available. For compability also boolean
# 0, n, no, off and false are aliases.
# - external - use external pin or any other method defined with ConnectionType backlight
# handling. For backward compability also this value is chosen for boolean
# TRUE values: 1, y, yes, on and true.
# - internal - means that backlight is handled using internal commands according
# to selected display model (with Model option). Depending on model,
# Brightness and OffBrightness options can be taken into account.
# - internalCmds - means that commands for turning on and off backlight are given
# with extra options BacklightOnCmd and BacklightOffCmd, which would be treated
# as catch up (last resort) for other types of displays which have similar features.
#
# You can provide multiple occurences of this option to use more than one method.
# Default is model specific: Winstar OLED and PT6314 VFD enables internal backlight mode,
# for others it is set to none.
Backlight = none
# Commands for enabling internal backlight for use with Backlight=internalCmds.
# Up to 4 bytes can be encoded, as integer number in big-endian order.
#
# NOTE: this is advanced option, if command contains bits other than only brighness handling,
# they must be set accordingly to not disrupt display state. If for example 'FUNCTION SET' command
# is used for this purpose, bits of interface length (4-bit / 8-bit) must be set according to
# selected ConnectionType.
BacklightCmdOn=0x1223
# Commands for disabling internal backlight for use with Backlight=internalCmds.
# Up to 4 bytes can be encoded, as integer number in big-endian order.
BacklightCmdOff=0x1234
# If you have the additional output port ("bargraph") and you want to
# be able to control it with the lcdproc OUTPUT command
OutputPort=no
# Specifies if the last line is pixel addressable (yes) or it controls an
# underline effect (no). [default: yes; legal: yes, no]
#Lastline=yes
# Specifies the size of the LCD.
# In case of multiple combined displays, this should be the total size.
Size=16x2
# For multiple combined displays: how many lines does each display have.
# Vspan=2,2 means both displays have 2 lines.
#vspan=2,2
# In extended mode, on some controllers like the ST7036 (in 3 line mode)
# the next line in DDRAM won't start 0x20 higher. [default: 0x20]
#LineAddress=0x10
# Character map to to map ISO-8859-1 to the LCD's character set
# [default: hd44780_default; legal: hd44780_default, hd44780_euro, ea_ks0073,
# sed1278f_0b, hd44780_koi8_r, hd44780_cp1251, hd44780_8859_5, upd16314,
# weh001602a_1]
# (hd44780_koi8_r, hd44780_cp1251, hd44780_8859_5, upd16314 and weh001602a_1
# are possible if compiled with additional charmaps)
CharMap=hd44780_default
# Font bank to be used for some displays such as the WINSTAR WEH001602A
# 0: English/Japanese (default)
# 1: Western Europe I
# 2: English/Rusian
# 3: Western Europe II
#FontBank=0
# If your display is slow and cannot keep up with the flow of data from
# LCDd, garbage can appear on the LCDd. Set this delay factor to 2 or 4
# to increase the delays. Default: 1.
#DelayMult=2
# Some displays (e.g. vdr-wakeup) need a message from the driver to that it
# is still alive. When set to a value bigger then null the character in the
# upper left corner is updated every <KeepAliveDisplay> seconds. Default: 0.
#KeepAliveDisplay=0
# If you experience occasional garbage on your display you can use this
# option as workaround. If set to a value bigger than null it forces a
# full screen refresh <RefreshDiplay> seconds. Default: 0.
#RefreshDisplay=1
# You can reduce the inserted delays by setting this to false.
# On fast PCs it is possible your LCD does not respond correctly.
# Default: true.
DelayBus=false
i2c_line_RS=0x01
i2c_line_RW=0x02
i2c_line_EN=0x04
i2c_line_BL=0x08
i2c_line_D4=0x10
i2c_line_D5=0x20
i2c_line_D6=0x40
i2c_line_D7=0x80
# EOF