HOW TO config 7" Capasitive Touch LCD with Cubieboard1 A10

[Igor Ratgauzer]

Hello all!

This is my short story:
Unfortunately ft5x_ts kernell module included in linux-sunxi 3.4.x for A10 doesn't work with Cubieboard1 and 7" touch LCD. So we need to replace module for A10 to the module for A20.
I use: Cubieboard1, DVK521 expansion board, 7" Capasitive Touch LCD and my laptop with cross-compile toolchain.
Cubian Desktop from cubian.org and sunxi-tools installed on Cubieboard1 (SD card).

HOW TO compile A10 kernel with A20 ft5x_ts module on your computer:

1. Install cross-compile Toolchain on your computer, according to this great manual: http://linux-sunxi.org/Toolchain

2. Download cubian kernel sources to your computer:

 # git clone https://github.com/mmplayer/linux-sunxi.git

3. Download ft5x_ts.c for A20 from http://dl.cubieboard.org/, and replace the original file e.g.:

 # cd linux-sunxi/drivers/input/touchscreen/
 # wget http://dl.cubieboard.org/parteners/waveshare/Source_Code/A20/driver%20source/ft5x_ts.c

4. Download cubian kernel config for A10 from http://cubian.org/downloads/, rename this file to .config and place into linux-sunxi/ folder.

5. Compile a new kernel and modules:

 # make -j4 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- uImage modules

6. Save modules in linux-sunxi/output folder:

 # make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_MOD_PATH=output modules_install

Now, you have a new kernel file named uImage in linux-sunxi/arch/arm/boot, and modules in linux-sunxi/output/lib/modules

7. Copy linux-sunxi/arch/arm/boot/uImage file to /boot/ folder on Cubian SD card.
8. Copy linux-sunxi/output/lib/modules folder to /lib/ folder on SD

BOOT!

HOW TO config cubian for 7" touch LCD:

1. Login to your Cubieboard e.g. via ssh...

2. Install sunxi-tools on your Cubieboard http://linux-sunxi.org/Sunxi-tools you need make, gcc, libusb-1.0 and pkg-config pre-installed on Cubieboard
   

 # apt-get install make gcc libusb-1.0-0-dev pkg-config
 # git clone https://github.com/linux-sunxi/sunxi-tools
 # cd sunxi-tools/
 # make

3. Backup your script.bin e.g.: 

 # cp /boot/script.bin /boot/script.bin.back

4. Convert your script.bin to FEX (text) file:

 # sunxi_tools/bin2fex /boot/script.bin script_lcd_touch.fex

5. Edit script_lcd_touch.fex:

    [disp_init]
    disp_init_enable = 1
    disp_mode = 0
    screen0_output_type = 1
    screen0_output_mode = 4
    screen1_output_type = 0
    screen1_output_mode = 4
    fb0_width = 1024
    fb0_height = 768
    fb0_framebuffer_num = 2
    fb0_format = 10
    fb0_pixel_sequence = 0
    fb0_scaler_mode_enable = 0
    fb1_width = 1024
    fb1_height = 768
    fb1_framebuffer_num = 2
    fb1_format = 10
    fb1_pixel_sequence = 0
    fb1_scaler_mode_enable = 0
    lcd0_backlight = 197
    lcd1_backlight = 197
    lcd0_bright = 50
    lcd0_contrast = 50
    lcd0_saturation = 57
    lcd0_hue = 50
    lcd1_bright = 50
    lcd1_contrast = 50
    lcd1_saturation = 57
    lcd1_hue = 50

    [lcd0_para]
    lcd_used = 1
    lcd_x = 800
    lcd_y = 480
    lcd_dclk_freq = 33
    lcd_pwm_not_used = 0
    lcd_pwm_ch = 0
    lcd_pwm_freq = 10000
    lcd_pwm_pol = 0
    lcd_max_bright = 240
    lcd_min_bright = 64
    lcd_if = 0
    lcd_hbp = 215
    lcd_ht = 1055
    lcd_vbp = 34
    lcd_vt = 1050
    lcd_vspw = 3
    lcd_hspw = 20
    lcd_hv_if = 0
    lcd_hv_smode = 0
    lcd_hv_s888_if = 0
    lcd_hv_syuv_if = 0
    lcd_lvds_ch = 0
    lcd_lvds_mode = 0
    lcd_lvds_bitwidth = 0
    lcd_lvds_io_cross = 0
    lcd_cpu_if = 0
    lcd_frm = 1
    lcd_io_cfg0 = 0
    lcd_gamma_correction_en = 0
    lcd_gamma_tbl_0 = 0x0
    lcd_gamma_tbl_1 = 0x10101
    lcd_gamma_tbl_255 = 0xffffff
    lcd_bl_en_used = 1
    lcd_bl_en = port:PH07<1><0><default><1>
    lcd_power_used = 1
    lcd_power = port:PH08<1><0><default><1>
    lcd_pwm_used = 1
    lcd_pwm = port:PB02<2><0><default><default>
    lcd_gpio_0 = port:PH15<0><0><default><default>
    lcd_gpio_1 =
    lcd_gpio_2 =
    lcd_gpio_3 =
    lcdd0 = port:PD00<2><0><default><default>
    lcdd1 = port:PD01<2><0><default><default>
    lcdd2 = port:PD02<2><0><default><default>
    lcdd3 = port:PD03<2><0><default><default>
    lcdd4 = port:PD04<2><0><default><default>
    lcdd5 = port:PD05<2><0><default><default>
    lcdd6 = port:PD06<2><0><default><default>
    lcdd7 = port:PD07<2><0><default><default>
    lcdd8 = port:PD08<2><0><default><default>
    lcdd9 = port:PD09<2><0><default><default>
    lcdd10 = port:PD10<2><0><default><default>
    lcdd11 = port:PD11<2><0><default><default>
    lcdd12 = port:PD12<2><0><default><default>
    lcdd13 = port:PD13<2><0><default><default>
    lcdd14 = port:PD14<2><0><default><default>
    lcdd15 = port:PD15<2><0><default><default>
    lcdd16 = port:PD16<2><0><default><default>
    lcdd17 = port:PD17<2><0><default><default>
    lcdd18 = port:PD18<2><0><default><default>
    lcdd19 = port:PD19<2><0><default><default>
    lcdd20 = port:PD20<2><0><default><default>
    lcdd21 = port:PD21<2><0><default><default>
    lcdd22 = port:PD22<2><0><default><default>
    lcdd23 = port:PD23<2><0><default><default>
    lcdclk = port:PD24<2><0><default><default>
    lcdde = port:PD25<2><0><default><default>
    lcdhsync = port:PD26<2><0><default><default>
    lcdvsync = port:PD27<2><0><default><default>

    [ctp_para]
    ctp_used = 1
    ctp_name = "ft5x_ts"
    ctp_twi_id = 1
    ctp_twi_addr = 0x38
    ctp_screen_max_x = 800
    ctp_screen_max_y = 480
    ctp_revert_x_flag = 0
    ctp_revert_y_flag = 1
    ctp_exchange_x_y_flag = 0
    ctp_firm = 1
    ctp_wakeup = port:PB13<1><default><default><1>

    [ctp_list_para]
    ctp_det_used = 1
    ft5x_ts = 1
    gt82x = 0
    gslX680 = 0
    gt9xx_ts = 0
    gt811 = 0

    [gpio_para]
    gpio_pin_3 = port:PH07<6><default><default><default>

6. Convert script_lcd_touch.fex to script.bin and place in /boot:

 # sunxi-tools/fex2bin script_lcd_touch.fex /boot/script.bin

REBOOT!

Very useful links:

Sunxi wiki:
http://linux-sunxi.org/Main_Page

Cubian website:
http://cubian.org/

How to install Cubian:
https://github.com/cubieplayer/cubian/wiki/Install-Cubian

Configuration examples:
http://docs.cubieboard.org/tutorials/dvk521/documentations/a20/driver_porting_and_configuration

Sunxi-tools:
http://linux-sunxi.org/Sunxi-tools

Waveshare documentation, software
http://dl.cubieboard.org/parteners/waveshare/

[Igor Ratgauzer]

Sorry!

I forgot to load a new ft5x_ts module!!!!!
So before reboot Cubieboard you need to place module name into /etc/modules file:
ft5x_ts

or you can check new module without reboot:

# modprobe ft5x_ts