HiBy R3Pro Saber 2022

[vitt13]

HiBy R3Pro Saber 2022

SoC:    Ingenic X1000E    1.0GHz MIPS XBurst with 64MB of SIP LPDDR RAM
NAND:    GD5F1GQ5UEYIG    GigaDevice 1 Gbit SPI NAND flash
       https://datasheet.lcsc.com/lcsc/2201201730_GigaDevice-Semicon-Beijing-GD5F1GQ5REYIGR_C2927042.pdf
DAC+HP Amp:    Two ES9219C https://www.esstech.com/wp-content/uploads/2021/02/ES9219_Datasheet_v1.0.4.pdf   
FPGA:    HBC3000 (probably customized GOWIN Semiconductor GW1NZ-LV1 Series FPGA https://cdn.gowinsemi.com.cn/DS841E.pdf Tempotec V3 has original marked GW1NZ-LV1 with similar pinout)
CD/MP3 Quality Stereo 2:1 Multiplexer with Click and Pop Elimination:
      ISL54405IRUZ-T   https://www.renesas.com/us/en/document/dst/isl54405-datasheet
PMU:    AXP202 https://dl.linux-sunxi.org/AXP/AXP202%20Datasheet_v1.0_en.pdf   
Fuel gauge:    CW2015 http://www.cellwise-semi.com/Public/assests/menu/20230302/6400076806706.pdf   
USB Type-C controller:    TCS1421
                edit: datasheet can be easily requested from CHSEMI by E-mail
                general info and pinout
                http://www.chsemi.com/pdf/USB_Type-C_Reference_Design_hw.pdf
                http://www.chsemi.com/pdf/USB_Type-C_Reference_Design_phone.pdf

LCD:    LCD-39575-003/111 https://drive.google.com/file/d/1TV0aJ76S8zi1RjxvOUng5tgJLa_nfNNA/view
This is a LG Panel with the name LH320H04-SD01 (this number can be found inside the panel too) which is build in the BlackBerry Curve 9380
https://www.reddit.com/r/Gameboy/comments/cx0ldl/the_display_of_the_funny_playing_ips_mod_is/

MIPI Master Bridge: SSD2805C    https://datasheet.lcsc.com/lcsc/1912111437_Solomon-Systech-SSD2805CG39R_C235734.pdf
The SSD2805 IC is a MIPI master bridge chip that connects a host processor with traditional parallel LCD interface and an LCD driver with MIPI slave interface. The SSD2805 supports parallel RGB and MCU interface and serial SPI interface.

Touch controller:    GT911 used driver GT9XX-TS, OF also has support for gslx680, FT6X06
      https://www.lcd-module.de/fileadmin/eng/pdf/zubehoer/GT911%20Programming%20Guide_20140804_Rev00.pdf

RGB LED status indicator:     LP5562   https://www.ti.com/lit/gpn/lp5562
Accellerometer: Kionix kx126 https://cdn.sparkfun.com/assets/2/f/6/f/c/KX126-1063.pdf
Bluetooth/WiFi:    AP6256 combo (BT BCM43456C5)    
Battery:    1600 mAh 3.7V 5.92Wh

[vitt13]

Original firmware 2.2 r3pro.upt https://drive.google.com/drive/folders/1AYTaybSWHtbzAS6NNOD88GH4mCc8l9SG
Internal photo
https://www.mediafire.com/file/2y1ilgk4muij8fm/Internal_photo.zip/file

To get USB boot mode hold two buttons (in powered off state): 'Power' and 'Forward' (>>)
To get original recovery hold two buttons (in powered off state): 'Power' and 'Volume Up' (Vol+)

Boot log in attachment and here is DAC/Audio related part of boot log:
I have no clue how to deal with FPGA based buffer since I didn't find any of completed Rockbox port on Ingenic SoC with SA2000/HBC2500 FPGA. There is reference to HBC2500A on ShanlingM2s https://www.rockbox.org/wiki/ShanlingM2sPort.html but the page https://www.rockbox.org/wiki/HBC2500A.html is missing.
Note: original firmware v2.2 is for three version of R3Pro - first revision has cs43131, second revision has es9218p and 2022 revision has es9219c.

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[    1.864347]  gpio_request GPIO 19 , name r3pro_dac_choice
[    1.870148] CARD: cs43131 platform dac error
[    1.874607] cs43131-codec: probe of 1-0030 failed with error -22
[    1.880988]  gpio_request GPIO 19 , name r3pro_dac_choice
[    1.886888] GPIO 37 , name es9218 reset
[    1.891070]  gpio_request GPIO 37 , name es9218 reset
[    1.896423] GPIO 53 , name es9218 bal reset
[    1.900911]  gpio_request GPIO 53 , name es9218 bal reset
[    1.906615] GPIO 32 , name es9218 channel sel
[    1.911276]  gpio_request GPIO 32 , name es9218 channel sel
[    1.917717]  gpio_request GPIO 19 , name r3pro_dac_choice
[    1.924252] jz-asoc-aic jz-asoc-aic: Aic core probe success
[    1.930454] jz-asoc-aic-i2s jz-asoc-aic-i2s: i2s platform probe success
[    1.937589] jz-asoc-pcm jz-asoc-pcm: pcm platform probe success
[    1.944062] [HBC3K] hbc3000_driver_init
[    1.948242]  gpio_request GPIO 46 , name JTAG_GPIO_PORT_TDI
[    1.954151]  gpio_request GPIO 44 , name JTAG_GPIO_PORT_TDO
[    1.960083]  gpio_request GPIO 45 , name JTAG_GPIO_PORT_TMS
[    1.965964]  gpio_request GPIO 47 , name JTAG_GPIO_PORT_TCK
[    1.971887]  gpio_request GPIO 39 , name GPIO_HBC3000_PIN_RESET
[    1.978155]  gpio_request GPIO 40 , name GPIO_HBC3000_PIN_SDO
[    1.984189]  gpio_request GPIO 42 , name GPIO_HBC3000_PIN_CLK
[    1.990288]  gpio_request GPIO 41 , name GPIO_HBC3000_PIN_CS
[    1.996262]  gpio_request GPIO 43 , name HBC2500_PWR
[    2.001562]  gpio_request GPIO 72 , name HBC2500_PWR_1V2
[    2.007176] [HBC3K] hbc3000_probe finish.
[    2.011474] [HBC3K] hbc3000_init finish
[    2.015547]  gpio_request GPIO 19 , name r3pro_dac_choice
[    2.021334] CARD: es9218 platform card error
[    2.025798] ingenic-r3pro-cs43131: probe of ingenic-r3pro-cs43131 failed with error -22
[    2.034282]  gpio_request GPIO 19 , name r3pro_dac_choice
[    2.040074]  gpio_request GPIO 54 , name r3pro_mute
[    2.045434] codec->dev =80696f10
[    2.049513] dma dma0chan4: Channel 4 have been requested.(phy id 3,type 0x06 desc a2190000)
[    2.067237] ingenic-r3pro-es9218 ingenic-r3pro-es9218:  es9218-hifi <-> jz-asoc-aic-i2s mapping ok
[    2.077057] dma dma0chan2: Channel 2 have been requested.(phy id 5,type 0x20 desc a2192000)
[    2.094952] ingenic-r3pro-es9218 ingenic-r3pro-es9218:  es9218-hifi <-> jz-asoc-pcm mapping ok
[    2.105335] sa_spdif_device_init success
[    2.119303] sa_spdif sa_spdif.0:  spdif dump dai <-> jz-asoc-aic-spdif mapping ok
[    2.129725] SWITCH: init OK

[vitt13]

Here is original bootloader (mtd0 dump without OOB) that I got from the device (rename r3pro_mtd0.txt to r3pro_mtd0.zip).

[vitt13]

Mounting debugfs with

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mount -t debugfs debugfs /sys/kernel/debugI was able to get some useful info.

GPIO

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GPIOs 0-31, GPIO A:
 gpio-16  (lcd rst             ) out lo
 gpio-17  (usb-insert-detect   ) in  lo

GPIOs 32-63, GPIO B:
 gpio-32  (es9218 channel sel  ) out lo
 gpio-35  (GPIO_AMP_PWR        ) out lo
 gpio-37  (es9218 reset        ) out lo
 gpio-38  (mmc_power           ) out hi
 gpio-39  (GPIO_HBC3000_PIN_RES) out lo
 gpio-40  (GPIO_HBC3000_PIN_SDO) out lo
 gpio-41  (GPIO_HBC3000_PIN_CS ) out hi
 gpio-42  (GPIO_HBC3000_PIN_CLK) out lo
 gpio-43  (HBC2500_PWR         ) out lo
 gpio-44  (JTAG_GPIO_PORT_TDO  ) in  lo
 gpio-45  (JTAG_GPIO_PORT_TMS  ) out lo
 gpio-46  (JTAG_GPIO_PORT_TDI  ) out lo
 gpio-47  (JTAG_GPIO_PORT_TCK  ) out lo
 gpio-48  (lcd rd              ) out lo
 gpio-51  (lcd vsync           ) in  lo
 gpio-53  (es9218 bal reset    ) out lo
 gpio-54  (r3pro_mute          ) out lo
 gpio-57  (drvvbus_pin         ) out lo
 gpio-58  (rtc32k              ) in  lo
 gpio-60  (prev key            ) in  hi
 gpio-63  (power key           ) in  hi

GPIOs 64-95, GPIO C:
 gpio-72  (HBC2500_PWR_1V2     ) out lo
 gpio-80  (oob_irq             ) in  lo
 gpio-81  (wifi_reset          ) out lo
 gpio-82  (bt_reg_on           ) out hi
 gpio-83  (host_wake_bt        ) out hi
 gpio-84  (bt_wake_host        ) in  lo
 gpio-85  (axp_irq             ) in  hi
 gpio-86  (mmc_detect          ) in  lo
 gpio-87  (GTP_INT_IRQ         ) out lo
 gpio-88  (lcd power           ) out hi
 gpio-89  (BL PWR              ) in  lo

GPIOs 96-101, GPIO D:
 gpio-98  (otg-id-detect       ) in  hi
 gpio-99  (GTP_RST_PORT        ) out lo
 gpio-100 (lp5562_en           ) out hi

mmc0 and mmc1 (actually it has only one physical microSD slot, I guess that is mmc0

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# cat /sys/kernel/debug/mmc0/ios
clock:          48000000 Hz
vdd:            15 (2.7 ~ 2.8 V)
bus mode:       2 (push-pull)
chip select:    0 (don't care)
power mode:     2 (on)
bus width:      2 (4 bits)
timing spec:    2 (sd high-speed)
signal voltage: 0 (3.30 V)

# cat /sys/kernel/debug/mmc1/ios
clock:          48000000 Hz
vdd:            20 (3.2 ~ 3.3 V)
bus mode:       2 (push-pull)
chip select:    0 (don't care)
power mode:     2 (on)
bus width:      2 (4 bits)
timing spec:    2 (sd high-speed)
signal voltage: 0 (3.30 V)

USB devices

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# cat /sys/kernel/debug/usb/devices

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480  MxCh= 1
B:  Alloc=  0/800 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0002 Rev= 3.10
S:  Manufacturer=Linux 3.10.14 dwc2-hcd
S:  Product=DesignWare USB2.0 High-Speed Host Controller
S:  SerialNumber=dwc2
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   4 Ivl=256ms

I2C devices

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# cat /sys/class/i2c-adapter/i2c-0/0-0038/name
ft6x06_ts

# cat /sys/class/i2c-adapter/i2c-0/0-0040/name
gslX680_ts

# cat /sys/class/i2c-adapter/i2c-0/0-005d/name
GT9XX-TS

# cat /sys/class/i2c-adapter/i2c-1/1-0030/name
cs43131-codec

# cat /sys/class/i2c-adapter/i2c-1/1-003d/name
sau

# cat /sys/class/i2c-adapter/i2c-1/1-0048/name
es9218

# cat /sys/class/i2c-adapter/i2c-2/2-001e/name
kx126

# cat /sys/class/i2c-adapter/i2c-2/2-0030/name
lp5562

# cat /sys/class/i2c-adapter/i2c-2/2-0034/name
axp_mfd

# cat /sys/class/i2c-adapter/i2c-2/2-0062/name
cw201x
Power supply map

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# cat /sys/kernel/debug/regulator/
GPIO_AMP_PWR/     axp_buck3/        axp_ldo3/         regulator-dummy/
axp_buck1/        axp_ldo1/         axp_ldo4/         supply_map
axp_buck2/        axp_ldo2/         axp_ldoio0/

# cat /sys/kernel/debug/regulator/supply_map
axp_ldoio0 -> (null).ldoio0
axp_buck3 -> (null).vdd_cpu
axp_buck2 -> (null).vdd_core
axp_buck1 -> (null).dcdc1
axp_ldo4 -> (null).ldo4
axp_ldo3 -> (null).ldo3
axp_ldo2 -> (null).ldo2
axp_ldo1 -> (null).ldo1
GPIO_AMP_PWR -> (null).es9218-avcc18
GPIO_AMP_PWR -> (null).es9218-avcc33
GPIO_AMP_PWR -> (null).es9218-vcca
GPIO_AMP_PWR -> (null).es9218-avdd
GPIO_AMP_PWR -> (null).hbc-power

AXP battery configuration

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# cat /sys/class/power_supply/axp_battery/voltage_max_design
4200

# cat /sys/class/power_supply/axp_battery/voltage_min_design
3400

# cat /sys/class/power_supply/axp_battery/uevent
POWER_SUPPLY_NAME=axp_battery
POWER_SUPPLY_MODEL_NAME=axp_battery
POWER_SUPPLY_STATUS=Discharging
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_HEALTH=Good
POWER_SUPPLY_TECHNOLOGY=Li-ion
POWER_SUPPLY_VOLTAGE_MAX_DESIGN=4200
POWER_SUPPLY_VOLTAGE_MIN_DESIGN=3400
POWER_SUPPLY_VOLTAGE_NOW=4000000
POWER_SUPPLY_CURRENT_NOW=127000
POWER_SUPPLY_ENERGY_FULL_DESIGN=1900
POWER_SUPPLY_CAPACITY=0
POWER_SUPPLY_TEMP=300

Regmap (for ES9218) actually cannot read

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# cat /sys/kernel/debug/regmap/1-0048/
access        cache_dirty   name          rbtree
cache_bypass  cache_only    range         registers
# cat /sys/kernel/debug/regmap/1-0048/name
es9218
# cat /sys/kernel/debug/regmap/1-0048/range
0-4b
# cat /sys/kernel/debug/regmap/1-0048/registers
(cannot read):
[  ] i2c i2c-1: i2c_jz_irq 449, I2C transfer error, ABORT interrupt
[  ] i2c i2c-1: --I2C txabrt:
[  ] i2c i2c-1: --I2C TXABRT[0]=I2C_TXABRT_ABRT_7B_ADDR_NOACK

[vitt13]

There are 7 input devices. I think we have to care about only two (three) of them - buttons related devices and touch screen device.
There are also remote control by wired earpods and accelerometer but I don't think we really need this in Rockbox.
There was disappoint that only tho physical buttons are on GPIO, the others are related to unknown ADC device.
Here is some info

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# cat /proc/bus/input/devices
I: Bus=0019 Vendor=0001 Product=0002 Version=0100
N: Name="earpods_adc"
P: Phys=earpods-adc/input0
S: Sysfs=/devices/platform/earpods_adc.0/input/input0
U: Uniq=
H: Handlers=kbd event0
B: PROP=0
B: EV=3
B: KEY=10000 138 0 0 0 0 0

I: Bus=0019 Vendor=0001 Product=0010 Version=0100
N: Name="adc_key"
P: Phys=adc_key/input0
S: Sysfs=/devices/platform/adc_key.0/input/input1
U: Uniq=
H: Handlers=kbd event1
B: PROP=0
B: EV=3
B: KEY=18 0 c0000 0 0 0

I: Bus=0018 Vendor=0038 Product=0000 Version=0000
N: Name="kx126-accel"
P: Phys=
S: Sysfs=/devices/platform/jz-i2c.2/i2c-2/2-001e/input/input2
U: Uniq=
H: Handlers=event2
B: PROP=0
B: EV=9
B: ABS=7

I: Bus=0018 Vendor=0038 Product=0000 Version=0000
N: Name="kx126-stepdet"
P: Phys=
S: Sysfs=/devices/platform/jz-i2c.2/i2c-2/2-001e/input/input3
U: Uniq=
H: Handlers=event3
B: PROP=0
B: EV=9
B: ABS=100 0

I: Bus=0018 Vendor=0038 Product=0000 Version=0000
N: Name="kx126-stepcnt"
P: Phys=
S: Sysfs=/devices/platform/jz-i2c.2/i2c-2/2-001e/input/input4
U: Uniq=
H: Handlers=event4
B: PROP=0
B: EV=9
B: ABS=100 0

I: Bus=0019 Vendor=0001 Product=0001 Version=0100
N: Name="gpio-keys"
P: Phys=gpio-keys/input0
S: Sysfs=/devices/platform/gpio-keys/input/input5
U: Uniq=
H: Handlers=kbd event5
B: PROP=0
B: EV=3
B: KEY=20 0 100000 0 0 0

I: Bus=0018 Vendor=dead Product=beef Version=28bb
N: Name="GT9XX-TS"
P: Phys=Ȥ▒▒▒HR▒i▒0▒▒i▒0▒▒
S: Sysfs=/devices/virtual/input/input6
U: Uniq=main_ts
H: Handlers=kbd event6
B: PROP=2
B: EV=b
B: KEY=400 0 0 0 0 0 40000800 40 0 0 0
B: ABS=2650000 0
Here is output info from evtest utility
Input device name: "adc_key"

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Available devices:
/dev/input/event0:      earpods_adc
/dev/input/event1:      adc_key
/dev/input/event2:      kx126-accel
/dev/input/event3:      kx126-stepdet
/dev/input/event4:      kx126-stepcnt
/dev/input/event5:      gpio-keys
/dev/input/event6:      GT9XX-TS
Select the device event number [0-6]:
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x10 version 0x100
Input device name: "adc_key"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 114 (KEY_VOLUMEDOWN)
    Event code 115 (KEY_VOLUMEUP)
    Event code 163 (KEY_NEXTSONG)
    Event code 164 (KEY_PLAYPAUSE)
Properties:
Testing ... (interrupt to exit)
Event: time 1717572858.161343, type 1 (EV_KEY), code 164 (KEY_PLAYPAUSE), value 1
Event: time 1717572858.161343, -------------- SYN_REPORT ------------
Event: time 1717572858.331344, type 1 (EV_KEY), code 164 (KEY_PLAYPAUSE), value 0
Event: time 1717572858.331344, -------------- SYN_REPORT ------------
Event: time 1717572866.361343, type 1 (EV_KEY), code 163 (KEY_NEXTSONG), value 1
Event: time 1717572866.361343, -------------- SYN_REPORT ------------
Event: time 1717572866.681755, type 1 (EV_KEY), code 163 (KEY_NEXTSONG), value 0
Event: time 1717572866.681755, -------------- SYN_REPORT ------------
Event: time 1717572896.781336, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 1
Event: time 1717572896.781336, -------------- SYN_REPORT ------------
Event: time 1717572896.931329, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 0
Event: time 1717572896.931329, -------------- SYN_REPORT ------------
Event: time 1717572898.161345, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 1
Event: time 1717572898.161345, -------------- SYN_REPORT ------------
Event: time 1717572898.331342, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 0
Event: time 1717572898.331342, -------------- SYN_REPORT ------------Input device name: "gpio-keys"

Code: [Select]

Select the device event number [0-6]: 5
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "gpio-keys"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 116 (KEY_POWER)
    Event code 165 (KEY_PREVIOUSSONG)
Properties:
Testing ... (interrupt to exit)
Event: time 1717572955.389456, type 1 (EV_KEY), code 165 (KEY_PREVIOUSSONG), value 1
Event: time 1717572955.389456, -------------- SYN_REPORT ------------
Event: time 1717572955.573842, type 1 (EV_KEY), code 165 (KEY_PREVIOUSSONG), value 0
Event: time 1717572955.573842, -------------- SYN_REPORT ------------
Event: time 1717572956.583762, type 1 (EV_KEY), code 116 (KEY_POWER), value 1
Event: time 1717572956.583762, -------------- SYN_REPORT ------------
Event: time 1717572956.781806, type 1 (EV_KEY), code 116 (KEY_POWER), value 0
Event: time 1717572956.781806, -------------- SYN_REPORT ------------Input device name: "GT9XX-TS"

Code: [Select]

Select the device event number [0-6]: 6
Input driver version is 1.0.1
Input device ID: bus 0x18 vendor 0xdead product 0xbeef version 0x28bb
Input device name: "GT9XX-TS"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 102 (KEY_HOME)
    Event code 139 (KEY_MENU)
    Event code 158 (KEY_BACK)
    Event code 330 (BTN_TOUCH)
  Event type 3 (EV_ABS)
    Event code 48 (ABS_MT_TOUCH_MAJOR)
      Value      0
      Min        0
      Max      255
    Event code 50 (ABS_MT_WIDTH_MAJOR)
      Value      0
      Min        0
      Max      255
    Event code 53 (ABS_MT_POSITION_X)
      Value      0
      Min        0
      Max      360
    Event code 54 (ABS_MT_POSITION_Y)
      Value      0
      Min        0
      Max      480
    Event code 57 (ABS_MT_TRACKING_ID)
      Value      0
      Min        0
      Max      255
Properties:
  Property type 1 (INPUT_PROP_DIRECT)
Testing ... (interrupt to exit)

tap on top left corner
Event: time 1717573100.261544, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1717573100.261544, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 13
Event: time 1717573100.261544, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 16
Event: time 1717573100.261544, type 3 (EV_ABS), code 48 (ABS_MT_TOUCH_MAJOR), value 22
Event: time 1717573100.261544, type 3 (EV_ABS), code 50 (ABS_MT_WIDTH_MAJOR), value 22
Event: time 1717573100.261544, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 0
Event: time 1717573100.261544, ++++++++++++++ SYN_MT_REPORT ++++++++++++
...same listing by 4 times...
Event: time 1717573100.381512, -------------- SYN_REPORT ------------
Event: time 1717573100.411504, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0
Event: time 1717573100.411504, -------------- SYN_REPORT ------------

tap on top right corner
Event: time 1717573128.081561, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1717573128.081561, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 353
Event: time 1717573128.081561, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 16
Event: time 1717573128.081561, type 3 (EV_ABS), code 48 (ABS_MT_TOUCH_MAJOR), value 15
Event: time 1717573128.081561, type 3 (EV_ABS), code 50 (ABS_MT_WIDTH_MAJOR), value 15
Event: time 1717573128.081561, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 0
Event: time 1717573128.081561, ++++++++++++++ SYN_MT_REPORT ++++++++++++
...same listing by 4 times...
Event: time 1717573128.201502, ++++++++++++++ SYN_MT_REPORT ++++++++++++
Event: time 1717573128.201502, -------------- SYN_REPORT ------------
Event: time 1717573128.231509, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0
Event: time 1717573128.231509, -------------- SYN_REPORT ------------

tap on bottom left corner
Event: time 1717573146.691516, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1717573146.691516, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 16
Event: time 1717573146.691516, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 459
Event: time 1717573146.691516, type 3 (EV_ABS), code 48 (ABS_MT_TOUCH_MAJOR), value 30
Event: time 1717573146.691516, type 3 (EV_ABS), code 50 (ABS_MT_WIDTH_MAJOR), value 30
Event: time 1717573146.691516, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 0
Event: time 1717573146.691516, ++++++++++++++ SYN_MT_REPORT ++++++++++++
...same listing by 3 times...
Event: time 1717573146.751508, -------------- SYN_REPORT ------------
Event: time 1717573146.781508, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0
Event: time 1717573146.781508, -------------- SYN_REPORT ------------

tap on bottom right corner
Event: time 1717573170.591513, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1717573170.591513, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 340
Event: time 1717573170.591513, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 458
Event: time 1717573170.591513, type 3 (EV_ABS), code 48 (ABS_MT_TOUCH_MAJOR), value 30
Event: time 1717573170.591513, type 3 (EV_ABS), code 50 (ABS_MT_WIDTH_MAJOR), value 30
Event: time 1717573170.591513, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 0
Event: time 1717573170.591513, ++++++++++++++ SYN_MT_REPORT ++++++++++++
...same listing by 3 times...
Event: time 1717573170.681557, -------------- SYN_REPORT ------------
Event: time 1717573170.711562, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0
Event: time 1717573170.711562, -------------- SYN_REPORT ------------