Fex GuideTranslated from ChineseContents [hide] 1 FEX
Description2 Port Definitions3 application3.1 [product]4 system
configuration4.1 [target]4.2 [card_burn_para]4.3 [card_boot]4.4
[card_boot0_para]4.5 [card_boot2_para]4.6 [twi_para]4.7
[uart_para]4.8 [jtag_para]4.9 [system]4.10 [gpio_para]4.11
[gpio_init]5 SDRAM5.1 [dram_para]6 mali configuration6.1
[mali_para]6.2 [g2d_para]7 ethernet MAC configuration7.1
[emac_para]8 i2c configuration8.1 [twi0_para]8.2 [twi0_para]8.3
[twi2_para]9 uart configuration9.1 [uart_para0]9.2 [uart_para1]9.3
[uart_para2]9.4 [uart_para3]9.5 [uart_para4]9.6 [uart_para5]9.7
[uart_para6]9.8 [uart_para7]10 spi configuration10.1
[spi0_para]10.2 [spi1_para]10.3 [spi2_para]10.4 [spi3_para]11
external spi device configuration11.1 [spi_devices]11.2
[spi_board0]12 resistive touch panel configuration12.1 [rtp_para]13
capacitive touch panel configuration13.1 [ctp_para]14 touch key
configuration14.1 [tkey_para]15 motor configuration15.1
[motor_para]16 lock configuration16.1 [locks_para]17 nand flash
configuration17.1 [nand_para]18 disp init configuration18.1
[disp_init]19 lcd[0/1] configuration19.1 [lcd0_para]19.2
[lcd1_para]20 tv out dac configuration20.1 [tv_out_dac_para]21 csi
gpio configuration21.1 [csi0_para]21.2 [csi1_para]22 tv
configuration22.1 [tvout_para]22.2 [tvin_para]23 sata
configuration23.1 [sata_para]24 sdmmc configuration24.1
[mmc0_para]24.2 [mmc1_para]24.3 [mmc2_para]24.4 [mmc3_para]25
memory stick configuration25.1 [ms_para]26 sim card
configuration26.1 [smc_para]27 ps2 configuration27.1
[ps2_0_para]27.2 [ps2_1_para]28 can bus configuration28.1
[can_para]29 matrix keyboard30 23.1 [keypad_para]31 USB control
flags31.1 [usbc0]31.2 [usbc1]31.3 [usbc2]32 USB Device32.1
[usb_feature]32.2 [msc_feature]33 G Sensor configuration33.1
[gsensor_para]34 gps gpio configuration34.1 [gps_para]35 sdio wifi
configuration35.1 [sdio_wifi_para]36 us wifi configuration36.1
[usb_wifi_para]37 3G configuration37.1 [3g_para]38 gyroscope38.1
[gy_para]39 light sensor39.1 [ls_para]40 compass40.1
[compass_para]41 blue tooth41.1 [bt_para]42 i2s configuration42.1
[i2s_para]43 spdif configuration43.1 [spdif_para]44 audio
configuration44.1 [audio_para]45 infrared remote configuration45.1
[ir_para]46 pmu configuration46.1 [pmu_para]47 recovery key
configuration47.1 [recovery_key]48 dvfs voltage-frequency table
configuration48.1 [dvfs_table]49 led configuration49.1
[leds_para]50 dynamic configurationFEX DescriptionA FEX file
defines various aspects of how the SoC works. It configures the
GPIO pins and sets up DRAM, Display, etc parameters.Each line
consists of a key = value pair combination under a [sectionheader].
All three, [sectionheader], key and value are case-sensitive. For
comments a semi-colon (;) is used and everything following a
semi-colon is ignored. The chip does not parse a textual version of
a fex file, it gets cleaned and compiled by a fex-compiler. A
reverse engineerd open source version exists in the [sunxi-tools].
Also a de-compiler which takes a binary script.bin and creates a
textual script.fex. Usually, script.bin can be found on the nanda
boot partition on A10 devices.Port DefinitionsDescription of the
GPIO configuration in the form:port:where: is the port to configure
(ie. PH15) is the function to configure the port for, mux 0 is as
input, mux 1 as output and for 2-7 see A10/PIO for details. is 0 =
disabled; 1 = pullup enabled; 2 = pulldown enabled (only valid when
port is an input) defines the output drive in mA, values are 0-3
corresponding to 10mA, 20mA, 30mA and 40mA. sets the initial output
level for the port; 0 = low; 1 = high (only valid for outputs)The
and can be set to which means don't change. Any trailing options
can be omitted.application[product]Product version and description.
It seems all fex files at this moment are at version 1.0 and use
the default evaluation board name. It doesn't appear to be used
internally, but requires further investigation.version: string
indicating fex file version.machine: string indicating the board
name. "A10-EVB-V1.2" appears to be a common one, seemingly to refer
to the A10 Evaluation board v1.2.?123 system
configuration[target]Note: blue module chip pin configuration, the
black module internal control configurationConfiguration items to
configure the meaning ofboot_clock: Initial boot frequency in
MHz.dcdc2_vol: Dcdc2 output voltage in mV.dcdc3_vol: Dcdc3 output
voltage in mV.ldo2_vol: Ldo2 output voltage in mV.ldo3_vol: Ldo3
output voltage in mV.ldo4_vol: Ldo4 output voltage in
mV.power_start: 0 or 1.storage_type: 0 = nand, 1 = SDCard, 2 =
SPI-norConfiguration example:?1234567891011
[card_burn_para]Configuration example:?12345678910
[card_boot]logical_start: logical starting address when booting
from SD-Card.sprite_gpio0:Configuration example:?123
[card_boot0_para]card_ctrl: card controller to be
usedcard_high_speed: 0 for low speed, 1 for high-speedcard_line:
Number of card data linessdc_ cmd: SD-Card command signals GPIO
configurationsdc_ clk: SD-Card clock signal GPIO configurationsdc_
d0: SD-Card data 0 line signal GPIO configurationsdc_ d1: SD-Card
data 1 line signal GPIO configurationsdc_d2: SD-Card data 2 line
signal GPIO configurationsdc_d3: SD-Card data 3 line signal GPIO
configurationConfiguration example:?12345678910
[card_boot2_para]card_ctrl: card controller to be
usedcard_high_speed: 0 for low speed, 1 for high-speedcard_line:
number of card data linessdc_ cmd: SD-Card command signals GPIO
configurationsdc_ clk: SD-Card clock signal GPIO configurationsdc_
d0: SD-Card data 0 line signal GPIO configurationsdc_ d1: SD-Card
data 1 line signal GPIO configurationsdc_d2: SD-Card data 2 line
signal GPIO configurationsdc_d3: SD-Card data 3 line signal GPIO
configurationConfiguration example:?12345678910 [twi_para]twi
controller to enable during/for boot.twi_port: twi controller to
configuretwi_scl: twi Serial CLock line GPIO configurationtwi_sda:
= twi Serial DAta line GPIO configurationConfiguration
example:?1234 [uart_para]Serial port to be enabled during/for
boot.uart_debug_port: serial controller numberuart_debug_tx: serial
port TX line GPIO configurationuart_debug_rx: serial port RX line
GPIO configurationConfiguration example:?1234 [jtag_para]JTAG port
to be enabled during/for boot.jtag_enable: 0 to disable JTAG, 1 to
enable JTAGjtag_ms: JTAG Test Mode Select (TMS) GPIO
configurationjtag_ck: JTAG Test Clock (TCK) GPIO
configurationjtag_do: JTAG Test Data Output (TDO) GPIO
configurationjtag_di: JTAG Test Data Input (TDI) GPIO
configurationConfiguration example:?123456 [system]recovery_key:
recovery key GPIO configurationConfiguration example:recovery_key =
port:PH16[gpio_para]gpio_used: 0 to disable; 1 to enablegpio_num:
number mapped GPIO'sgpio_pin_1: first GPIO pinConfiguration
example:gpio_used = 0gpio_num = 4gpio_pin_1 = port:PH10gpio_pin_2 =
port:PH20gpio_pin_3 = port:PB03gpio_pin_4 =
port:PH22[gpio_init]pin_1: Initial pin 1 GPIO
configurationConfiguration example:pin_1 = port:PH10pin_2 =
port:PH20SDRAM[dram_para]SD-Ram is usually configured via livesuit
when flashing. Livesuit probes the hardware or knows about the
hardware and its configuration and configures the SoC accordingly.
This luxury is not available from Linux and thus sdram parameters
have to be set up by hand.dram_baseaddr: DRAM physical start
address, fixed at 0x40000000dram_clk: DRAM clock frequency in MHz;
it must be an integer multiple of 24, minimally 120, maximally 480
MHzdram_type: DRAM type; Set to 2 for DDR2; 3 for
DDR3dram_rank_num: DRAM chip select; 1 is a chip select; 2 election
for two tabletsdram_chip_density: monolithic DRAM capacity in
Mbitdram_io_width: monolithic DRAM bus width in bitsdram_bus_width:
DRAM bus width in bits, such as two 16-bit DRAM banks make up a 32
bit bus widthdram_cas: DRAM CAS latencydram_zq: DRAM controller
internal parametersdram_odt_en: ODT 0 to disable; 1 to
enabledram_size: DRAM total capacity in MBdram_tpr0: DRAM
controller internal parameterdram_tpr1: DRAM controller internal
parameterdram_tpr2: DRAM controller internal parameterdram_tpr3:
DRAM controller internal parameterdram_tpr4: DRAM controller
internal parameterdram_tpr5: DRAM controller internal
parameterdram_emr1: DRAM controller internal parameterdram_emr2:
DRAM controller internal parameterdram_emr3: DRAM controller
internal parameterConfiguration
example:?123456789101112131415161718192021 mali configurationMali
is the name of the GPU on the A10, A10s, A13 and A20
SoC's[mali_para]mali_used: 0 to disable; 1 to enable Mali
modulemali_clkdiv: Mali clock divisor. Clock is obtained by
devising PLL4 with mali_clkdivConfiguration example:?123
[g2d_para]G2D is the 2D graphic display engine on the Allwinner
SoCg2d_used: 0 to disable; 1 to enable the g2d moduleg2d_size:
memory size for g2d?12 ethernet MAC
configuration[emac_para]Ethernet configuration for the integrated
ethernet IP. It still requires an external PHYemac_used: 0 to
disable; 1 to enable the ethernet MACemac_rxd0: RX data line 0 GPIO
configurationemac_rxd1: RX data line 1 GPIO configurationemac_rxd2:
RX data line 2 GPIO configurationemac_rxd3: RX data line 3 GPIO
configurationemac_txd0: TX data line 0 GPIO configurationemac_txd1:
TX data line 1 GPIO configurationemac_txd2: TX data line 2 GPIO
configurationemac_txd3: TX data line 3 GPIO
configurationemac_rxclk: RX clock GPIO configurationemac_rxerr: RX
error GPIO configurationemac_rxdV: RX enabled GPIO
configurationemac_mdc: MII clock GPIO configurationemac_mdio: MII
data I/O GPIO configurationemac_txen: TX enabled GPIO
configurationemac_txclk: TX clock GPIO configurationemac_crs:
Carrier Status of GPIO configurationemac_col: Collision Detection
GPIO configurationemac_reset: PHY reset signal GPIO
configurationConfiguration example:?1234567891011121314151617181920
i2c configuration[twi0_para]Two Wire Interface (ic) configuration
for TWI port 0twi0_used: 0 to disable; 1 to enabletwi0_scl: TWI
Serial CLock GPIO configurationtwi0_sda: TWI Serial Data GPIO
configurationConfiguration example:?1234 [twi0_para]Two Wire
Interface (ic) configuration for TWI port 1twi1_used: 0 to disable;
1 to enabletwi1_scl: TWI Serial CLock GPIO configurationtwi1_sda:
TWI Serial Data GPIO configurationConfiguration example:?1234
[twi2_para]Two Wire Interface (ic) configuration for TWI port
2twi2_used: 0 to disable; 1 to enabletwi2_scl: TWI Serial CLock
GPIO configurationtwi2_sda: TWI Serial Data GPIO
configurationConfiguration example:?1234 uart configurationAny of
the 8 UART ports can be configured to be either 2 (Only TX/RX)
wires, 4 wires (TX, RX, RTS and CTS) or 8 (Full function)
ports.uart_used: 0 to disable; 1 to enableuart_port: UART port
numberuart_type: UART type, 2, 4 or 8 wiresuart_tx: UART TX data
line GPIO configurationuart_rx: UART RX data line GPIO
configurationuart_rts: UART Ready to Send line GPIO configuration,
only for 4 and 8 wire modesuart_cts: UART Clear to Send line GPIO
configuration, only for 4 and 8 wire modesuart_dtr: UART Data
Terminal Ready GPIO configuration, only for 8 wire modesuart_dsr:
UART Data Set Ready GPIO configuration, only for 8 wire
modesuart_dcd: UART Data Carrier Detect GPIO configuration, only
for 8 wire modesuart_ring: UART Ring Indicator GPIO configuration,
only for 8 wire modes[uart_para0]Configuration example:?12345
[uart_para1]Configuration example:?123456789101112
[uart_para2]Configuration example:?12345678
[uart_para3]Configuration example:?12345678
[uart_para4]Configuration example:?123456 [uart_para5]Configuration
example:?123456 [uart_para6]Configuration example:?123456
[uart_para7]Configuration example:?123456 spi
configurationspi_used: 0 to disable; 1 to enablespi_cs_bitmap: 0 to
not use a CS bitmap, 1 to use CS bitmapspi_cs0: Chip Select bit 0
GPIO configurationspi_cs1: Chip Select bit 1 GPIO
configurationspi_sclk: clock GPIO configurationspi_mosi: MOSI GPIO
configurationspi_miso: MISO GPIO
configurationTemplate:Note[spi0_para]Configuration example
1:?12345678 Configuration example 2:?1234567
[spi1_para]Configuration example 1:?12345678 Configuration example
2:?12345678 [spi2_para]Configuration example 1:?12345678
Configuration example 2:?1234567 [spi3_para]Configuration
example:?12345678 external spi device
configuration[spi_devices]spi_dev_num: number of external SPI
devices connected to the SoC. For each external SPI device N, a
board define [spi_boardM] with M = N - 1 needs to be
created[spi_board0]modalias: Aliasmax_speed_hz: Maximum speed in
Hzbus_num: Bus number of SPI controllermode: SPI mode, bitfield
defined in spi.hfull_duplex: 0 for half-duplex; 1 for full-duplex
modemanual_cs: manually control Chip Select level (unsupported for
now)Configuration example:?12345678 resistive touch panel
configuration[rtp_para]rtp_used: 0 to disable; 1 to
enablertp_screen_size: diagonal screen size rounded to full
inchesrtp_regidity_level: touchscreen regidty in 10 ms
unitsrtp_press_threshold_enable: 0 to disable; 1 to
enablertp_press_threshold: defines the press-threshold sensitivity;
set between 0x0 and 0xffffffrtp_exchange_x_y_flag: 0 for normal
operation; 1 to flip X and Y coordinatesConfiguration
example:?1234567 capacitive touch panel
configuration[ctp_para]Several touch panel's can be configured.
Their name must match to the linux ctp-driver!ctp_used: 0 to
disable; 1 to enablectp_name: Name of the touch panel driver to
usectp_twi_id: twi controller to usectp_twi_addr: hardware specfic
twi address in hexctp_screen_rotate: 0 for normal operation; 1 for
180 rotationctp_screen_max_x: Maximum X screen
resolutionctp_screen_max_y: Maximum Y screen
resolutionctp_revert_x_flag: 0 for normal operation; 1 to flip the
X axisctp_revert_y_flag: 0 for normal operation; 1 to flip the Y
axisctp_havekey: 0 for normal operation; 1 if the touch panel also
has touch-keys.ctp_int_port: interrupt line GPIO
configurationctp_wakeup: screen wake up GPIO
configurationctp_io_port: I/O port GPIO configurationConfiguration
example:?1234567891011121314151617181920212223242526272829303132333435363738394041424344
touch key configuration[tkey_para]Touch 'key', only for "hv_keypad"
for nowtkey_used: 0 to disable; 1 to enabletkey_name: driver name,
must match linux driver nametkey_twi_id: twi controller to
usetkey_twi_addr: hardware specfic twi address in hextkey_int:
interrupt line GPIO configurationConfiguration example:?123456
motor configuration[motor_para]motor_used: 0 to disable; 1 to
enablemotor_shake: motor control pin GPIO
configurationConfiguration example:?123 lock configurationLocks are
either very new or really old as nothing can be found in any fex
file in git. It seems reasonable to believe that this would be a
screen lock 'button'.[locks_para]locks_used: 0 to disable; 1 to
enablelocks_gpio: switch GPIO configurationConfiguration
example:?123 nand flash configuration[nand_para]nand_used: 0 to
disable; 1 to enablenand_we: Write Enable GPIO
configurationnand_ale: Address Latch Enable GPIO
configurationnand_cle: Command Latch Enable GPIO
configurationnand_ce0: Chip sElect bit 0 GPIO
configurationnand_ce1: Chip sElect bit 1 GPIO
configurationnand_ce2: Chip sElect bit 2 GPIO
configurationnand_ce3: Chip sElect bit 3 GPIO
configurationnand_ce4: Chip sElect bit 4 GPIO
configurationnand_ce5: Chip sElect bit 5 GPIO
configurationnand_ce6: Chip sElect bit 6 GPIO
configurationnand_ce7: Chip sElect bit 7 GPIO
configurationnand_nre: Nand Read Enable GPIO configurationnand_rb0:
Read / Busy bit 0 GPIO configurationnand_rb1: Read / Busy bit 1
GPIO configurationnand_d0: data bus bit 0 GPIO
configurationnand_d1: data bus bit 1 GPIO configurationnand_d2:
data bus bit 2 GPIO configurationnand_d3: data bus bit 3 GPIO
configurationnand_d4: data bus bit 4 GPIO configurationnand_d5:
data bus bit 5 GPIO configurationnand_d6: data bus bit 6 GPIO
configurationnand_d7: data bus bit 7 GPIO configurationnand_wp:
Write Protect GPIO configurationnand_spi: SPI data line GPIO
configurationnand_ndqs: nand ddr clock signal GPIO
configurationConfiguration
example:?123456789101112131415161718192021222324252627 disp init
configuration[disp_init]disp_init_enable: 0 to disable; 1 to
enabledisp_mode: Display mode to use:modedisplay
mode0screen0(screen0, fb0)1screen1(screen1,
fb0)2two_diff_screen_diff_contents(screen0, screen1, fb0,
fb1)3two_same_screen_diff_contents(screen0, screen1,
fb0)4two_diff_screen_same_contents(screen0, screen1,
fb0)screen0_output_type: Output type for
screen0:screen1_output_type: Output type for screen1:typeOutput
type0none1lcd2tv3hdmi4vgascreen0_output_mode: Output mode for
screen0:screen1_output_mode: Output mode for screen1:modeused for
tv/hdmi outputused for vga
output0480i1680*10501576i1440*9002480p1360*7683576p1280*10244720p501024*7685720p60800*60061080i50640*48071080i6081080p2491080p50101080p601920*108011pal1280*72014ntscfb0_framebuffer_num:
fb0 buffer number, use 2 for double bufferingfb1_framebuffer_num:
fb1 buffer number, use 2 for double bufferingfb0_format: pixel
format for fb0:fb1_format: pixel format for
fb1:formatfb0_format4RGB6555RGB5656RGB5567ARGB15558RGBA55519RGB88810ARGB888812ARGB4444fb0_pixel_sequence:
fb0 pixel sequence (0 generally for linux, 2 for
android):fb1_pixel_sequence: fb1 pixel sequence (0 generally for
linux, 2 for
android):sequencefb0_pixel_sequence0ARGB1BGRA2ABGR3RGBAfb0_scaler_mode_enable:
0 to disable; 1 to enablefb1_scaler_mode_enable: 0 to disable; 1 to
enableConfiguration example for LCD:?12345678910111213141516171819
Configuration example for VGA:?12345678910111213141516171819
lcd[0/1] configurationlcd_used: 0 to disable; 1 to
enablelcd_pwm_not_used: 0 to enable PWM; 1 to disablelcd_pwm_ch:
PWM channellcd_pwm_freq: PWM frequency in Hzlcd_pwm_pol: PWM
polaritylcd_x: X-axis active widthlcd_y: Y-axis active
heightlcd_dclk_freq: pixel clock frequency in MHzlcd_if: lcd
interface:interfacelcd_interface0hv (sync +
de)180802ttl3lvdslcd_hbp: hsync back porchlcd_ht: hsync total
cyclelcd_vbp: vsync back porchlcd_vt: vysnc total cycle *
2lcd_hv_if: 0 for parallel hv interface; 1: for serial hv
interfacelcd_hv_smode: 0 for RGB888 serial interface mode; 1 for
CCIR656lcd_hv_s888_if: serial RGB formatlcd_hv_syuv_if: serial YUV
formatlcd_hv_vspw: vysnc plus widthlcd_hv_hspw: hsync plus
widthlcd_hv_lde_used: 0 to disable; 1 to enablelcd_hv_lde_iovalue:
HV LDE iovaluelcd_lvds_ch: 0 for single channel; 1 for dual
channellcd_lvds_mode: 0 for NS mode; 1 for JEIDA
modelcd_lvds_bitwidth: 0 for 24 bit; 1 for 18 bitlcd_io_cfg0: lcd
IO configurationlcd_lvds_io_cross: 0 for normal; 1 for pn
crosslcd_cpu_if: cpu if mode:modecpu_if018 bit116 bit mode0216 bit
mode1316 bit mode2416 bit mode359 bit68 bit, 256k78 bit,
65klcd_gamma_correction_en: 0 to disable; 1 to
enablelcd_gamma_tbl_[0-255]: Gamma table 0 through 255lcd_frm: 0 to
disable dither; 1 to enable enable rgb666 dither; 2 to enable
rgb656 ditherlcd_io_cfg0: lcd io invlcd_bl_en_used: 0 to disable; 1
to enablelcd_bl_en: LCD BackLight GPIO configurationlcd_power_used:
0 to disable; 1 to enablelcd_power: LCD_VCC Voltage control GPIO
configurationlcd_pwm_used: 0 to disable; 1 to enablelcd_pwm: lcd
PWM, GPIO configuration (PWM0 fixed using the PB02 PWM1 fixed PI03
without user modification)lcd_gpio_0: 2/3-wire SCL GPIO
configurationlcd_gpio_1: 2/3-wire SDA GPIO configurationlcd_gpio_2:
2/3-wire SCEN GPIO configurationlcd_gpio_3: LCD module RESET GPIO
configurationlcdd0: data bit 0 GPIO configurationlcdd1: data bit 1
GPIO configurationlcdd2: data bit 2 GPIO configurationlcdd3: data
bit 3 GPIO configurationlcdd4: data bit 4 GPIO configurationlcdd5:
data bit 5 GPIO configurationlcdd6: data bit 6 GPIO
configurationlcdd7: data bit 7 GPIO configurationlcdd8: data bit 8
GPIO configurationlcdd9: data bit 9 GPIO configurationlcdd10: data
bit 10 GPIO configurationlcdd11: data bit 11 GPIO
configurationlcdd12: data bit 12 GPIO configurationlcdd13: data bit
13 GPIO configurationlcdd14: data bit 14 GPIO configurationlcdd15:
data bit 15 GPIO configurationlcdd16: data bit 16 GPIO
configurationlcdd17: data bit 17 GPIO configurationlcdd18: data bit
18 GPIO configurationlcdd19: data bit 19 GPIO configurationlcdd20:
data bit 20 GPIO configurationlcdd21: data bit 21 GPIO
configurationlcdd22: data bit 22 GPIO configurationlcdd23: data bit
23 GPIO configurationlcdclk: LCD Clock GPIO configurationlcdde: LCD
de GPIO configurationlcdhsync: H sync GPIO configurationlcdvsync: V
sync GPIO configuration[lcd0_para]Configuration
example:?123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869
Other configuration examples for certain
panels:?12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
[lcd1_para]Configuration
example:?12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576
tv out dac configurationThe TV-Out Digital Analog Converter (DAC)
modules the framebuffer to a signal suitable for a
TV[tv_out_dac_para]dac_used: 0 to disable; 1 to enabledac0_src:
Output source for the DAC:dac1_src: Output source for the
DAC:dac2_src: Output source for the DAC:dac3_src: Output source for
the DAC:dacOutput
source0Composite1Luma2Chroma34Y5Pb6Pr7NoneConfiguration
example:?123456 csi gpio configurationcsi_used: 0 to enable; 1 to
disablecsi_mode: 0 to sample one csi to one buffer; 1 to sample two
csi to one buffercsi_dev_qty: Quantity of devices linked to the csi
interfacecsi_twi_id: TWI controller to usecsi_twi_id_b: TWI
controller to use for second devicecsi_mname: Module name to match
the csi device; currently known to work:csi_mname_b: Module name to
match the second csi device; currently known to
work:ov7670gc0308gt2005hi704hi253csi_twi_addr: TWI address for the
used cameracsi_twi_addr_b: TWI address for the used camera for
second devicecsi_if: interface:csi_if_b: interface for second
device:ifcsi interface0hv_8bit1hv_16bit2hv_24bit3bt656 1ch4bt656
2ch5bt656 4chcsi_pck: p clock GPIO configurationcsi_ck: clock GPIO
configurationcsi_hsync: H-sync GPIO configurationcsi_vsync: V-sync
GPIO configurationcsi_hflip: Horizontal frame flipcsi_hflip_b:
Horizontal frame flip for second devicecsi_vflip: Vertical frame
flipcsi_vflip_b: Vertical frame flip for second devicecsi_d0: data
bit 0 GPIO configurationcsi_d1: data bit 1 GPIO
configurationcsi_d2: data bit 2 GPIO configurationcsi_d3: data bit
3 GPIO configurationcsi_d4: data bit 4 GPIO configurationcsi_d5:
data bit 5 GPIO configurationcsi_d6: data bit 6 GPIO
configurationcsi_d7: data bit 7 GPIO configurationcsi_d8: data bit
8 GPIO configurationcsi_d9: data bit 9 GPIO configurationcsi_d10:
data bit 10 GPIO configurationcsi_d11: data bit 11 GPIO
configurationcsi_d12: data bit 12 GPIO configurationcsi_d13: data
bit 13 GPIO configurationcsi_d14: data bit 14 GPIO
configurationcsi_d15: data bit 15 GPIO configurationcsi_reset:
Camera reset; the default value, high or low ,depends on the
modulecsi_power_en: Power enable GPIO configurationcsi_stby: Camera
standby GPIO configuration; the default value, high or low ,depends
on the modulecsi_stby_b: Camera standby GPIO configuration for
second device; the default value, high or low ,depends on the
modulecsi_stby_mode: 0 to not shutdown power at standby; 1 shutdown
power at standbycsi_facing: Tells the device if the camera is
facing or otherwise. 0 for the back, 1 for the front
camera.csi_facing_b: Same as above.csi_vflip: Vertical flip; 0:
disabled, 1: enabledcsi_hflip: Horizontal flip; 0: disabled, 1:
enabledcsi_flash: Camera Flash GPIO configurationcsi_flash_b:
Camera Flash GPIO configuration for second devicecsi_flash_pol:
Flash polarity of flash light; 0 for active low; 1 for active
highcsi_flash_pol_b: Flash polarity of flash light for second
device; 0 for active low; 1 for active highcsi_af_en: Autofocus
enable GPIO configurationcsi_iovdd: Camera module IO power, PMU
power supplycsi_iovdd_b: Camera module IO power, PMU power supply
for second devicecsi_avdd: Camera analog power, PMU power
supplycsi_avdd_b: Camera analog power, PMU power supply for second
devicecsi_dvdd: Camera digital power, PMU power supplycsi_dvdd_b:
Camera digital power, PMU power supply for second devicepmu_ldo3:
"axp20_pll" or leave empty empty when not using any PMU power
supplypmu_ldo4: "axp20_hdmi" or empty when not using any PMU power
supply[csi0_para]Configuration
example:?12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758
[csi1_para]Configuration
example:?123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566
tv configuration[tvout_para]tvout_used: 0 to disable; 1 to
enabletvout_channel_num: Channel numbertv_en: TV encoder GPIO
configurationConfiguration example:?123 [tvin_para]tvin_used: 0 to
disable; 1 to enabletvin_channel_num: channel numberConfiguration
example:?12 sata configuration[sata_para]sata_used: 0 to disable; 1
to enablesata_power_en: Sata power enable GPIO
configurationConfiguration example:?12 sdmmc configurationThere are
several things to notice when configuring the sdmmc
controller.sdc_used: 0 to disable; 1 to enable;0=1=sdc_detmode:
detection mode :modedetection modenote01GPIO detectionAlso
configure sdc_det to map to a GPIO GPIOsdc_detGPIO2sdc_d3
detectionsdc_d3 must be configured as HiZ GPIO and have an external
1 M pull-down resistor SDD3GPIO1M3polling (card cannot be
swapped)4manually (via the proc file system node)bus_width: 1 for
1bit; 4 for 4bit (may also be called sdc_bwid?!? verify
please)sdc_d0: data line 0 GPIO configurationsdc_d1: data line 1
GPIO configurationsdc_d2: data line 2 GPIO configurationsdc_d3:
data line 3 GPIO configurationsdc_clk: CLK GPIO
configurationsdc_cmd: CMD GPIO configurationsdc_det: DET GPIO
configurationsdc_use_wp: 0 is normal operation; 1 is write
protectsdc_wp: Write Protect the GPIO
configuration[mmc0_para]Configuration example:?12345678910111213
[mmc1_para]Configuration example:?12345678910111213
[mmc2_para]Configuration example:?12 [mmc3_para]Configuration
example:?12345678910111213 memory stick
configuration[ms_para]ms_used: 0 to disable; 1 to enablems_bs: Bus
State signal GPIO configurationms_clk: Clock GPIO
configurationms_d0: Data line 0 GPIO Configurationms_d1: Data line
1 GPIO Configurationms_d2: Data line 2 GPIO Configurationms_d3:
Data line 3 GPIO Configurationms_det: Stick detection GPIO
ConfigurationConfiguration example:?123456789 sim card
configuration[smc_para]smc_used: 0 to disable; 1 to enablesmc_rst:
Reset GPIO configurationsmc_vppen: VPP enable GPIO
configurationsmc_vppp: Programming VPP GPIO configurationsmc_det:
SIM Card detect GPIO configurationsmc_vccen: VCC enable GPIO
configurationsmc_sck: Serial clock GPIO configurationsmc_sda:
Serial data GPIO configurionConfiguration example:?123456789 ps2
configuration[ps2_0_para]ps2_used: 0 to disable; 1 to
enableps2_scl: Serial clock GPIO configurationps2_sda: Serial data
GPIO configurationConfiguration example:?1234 [ps2_1_para]ps2_used:
0 to disable; 1 to enableps2_scl: Serial clock GPIO
configurationps2_sda: Serial data GPIO configurationConfiguration
example:?1234 can bus configuration[can_para]can_used: 0 to
disable; 1 to enable itcan_tx: transmit GPIO Configurationcan_rx:
receive GPIO configurationConfiguration example:?1234 matrix
keyboard23.1 [keypad_para]kp_used: 0 to disable; 1 to
enablekp_in_size: column widthkp_out_size: row widthkp_in0: column
0 GPIO Configurationkp_in1: column 1 GPIO Configurationkp_in2:
column 2 GPIO Configurationkp_in3: column 3 GPIO
Configurationkp_in4: column 4 GPIO configurationkp_in5: column 5
GPIO configurationkp_in6: column 6 GPIO Configurationkp_in7: column
7 GPIO configurationkp_out0: row 0 GPIO Configurationkp_out1: row 1
GPIO Configurationkp_out2: row 2 GPIO Configurationkp_out3: row 3
GPIO Configurationkp_out4: row 4 GPIO configurationkp_out5: row 5
GPIO configurationkp_out6: row 6 GPIO Configurationkp_out7: row 7
GPIO configurationConfiguration
example:?1234567891011121314151617181920 USB control flagsusb_used:
0 to disable; 1 to enableusb_port_type: USB port type:typeusb port
type0device only1host only2OTGusb_detect_type: 0 = no checking; 1 =
VBus / id checkusb_id_gpio:USB ID pin GPIO
configurationusb_det_vbus_gpio: USB detect VBus pin GPIO
configurationusb_drv_vbus_gpio: USB drive VBus pin GPIO
configurationusb_host_init_state: In host only mode, host port
initialization state; 0 do not initialize; 1 initializatie
USB[usbc0]Configuration example:?12345678 [usbc1]Configuration
example:?12345678 [usbc2]Configuration example:?12345678 USB
Device[usb_feature]vendor_id: vendor IDmass_storage_id: mass
storage IDadb_id: android debug bridge IDmanufacturer_name: vendor
nameproduct_name: = product nameserial_number: = serial
numberConfiguration example:?1234567 [msc_feature]vendor_name:
vendor nameproduct_name: product namerelease: release versionluns:
number of logical unitsConfiguration example:?12345 G Sensor
configuration[gsensor_para]gsensor_used: 0 to disable; 1 to
enablegsensor_name: linux kernel module name to match
configurationgsensor_twi_id: TWI bus IDgsensor_twi_addr: TWI
addressgsensor_int1: interrupt 1 GPIO configurationgsensor_int2:
interrupt 2 GPIO configurationConfiguration example 1:?1234567
Configuration example 2:?1234567 Configuration example 3:?1234567
gps gpio configuration[gps_para]gps_used: 0 to disable; 1 to
enablegps_spi_id: SPI controller; 0 - 2 for SPI0, SPI1 or SPI2; 15
if no SPI is usedgps_spi_cs_num: chip select SPI controller; 0 =
SPI0, 1 = SPI1gps_lradc: 0 or 1 for Low Rate ADC Format; 2 for no
Low Rate ADC Formatgps_clk: Clock GPIO configurationgps_sign: GPS
sign GPIO configurationgps_mag: GPS Magnitude GPIO
configurationgps_vcc_en: GPS VCC enable GPIO
configurationgps_osc_en: GPS Oscillator enable GPIO
configurationgps_rx_en: GPS receive enable GPIO
configurationConfiguration example:?1234567891011 sdio wifi
configuration[sdio_wifi_para]sdio_wifi_used: 0 to disable; 1 to
enablesdio_wifi_sdc_id: SD controller ID to usesdio_wifi_mod_sel:
SDI module selection (see mmc_pm.c ):modewifi selection
modenote0none1swl-n20WiFi2usi bm-01WiFi - Bluetooth - FM
radio3ar6302qfn4apm6xxx5swb b23WiFi - Bluetooth - FM
radio6hw-mw269xHuawei wifi
driver7bcm401818bcm40183BCM40183(BCM4330)9rtl8723asRTL8723AS(RF-SM02B)10rtl8189esRTL8189ES(SM89E00)sdio_wifi_shdn:
SHDN GPIO configurationsdio_wifi_host_wakeup: WiFi wakeup GPIO
Configurationsdio_wifi_vdd_en: VDD enable GPIO
configurationsdio_wifi_vcc_en: VCC enable GPIO
configurationConfiguration example:?123456789 Optionally the
following parameters can be used when other/multiple transceivers
are
installed.?12345678910111213141516171819202122232425262728293031323334
us wifi configuration[usb_wifi_para]usb_wifi_used: 0 to disable; 1
to enableusb_wifi_usbc_num: USB controller to which USB wifi module
is connectedusb_host_init_state: used together, such as xx = 2.
Then usbc2 the usb_host_init_state 0Configuration example:?123 3G
configuration[3g_para]3g_used: 0 to disable; 1 to
enable3g_usbc_num: USB controller to which the 3G module is
connected3g_uart_num: UART controller to which the 3G module is
connected3g_pwr: power enable GPIO configuration3g_wakeup: wakeup
GPIO configuration3g_int: interrupt GPIO configurationConfiguration
example:?123456 gyroscope[gy_para]gy_used: 0 to disable; 1 to
enablegy_twi_id: TWI controller to usegy_twi_addr: TWI address to
usegy_int1: interrupt 1 GPIO configurationgy_int2: interrupt 2 GPIO
configurationConfiguration example:?123456 light
sensor[ls_para]ls_used: 0 to disable; 1 to enablels_twi_id: TWI
controller to usels_twi_addr: TWI addressls_int: interrupt GPIO
configurationConfiguration example:?12345
compass[compass_para]compass_used: 0 to disable; 1 to
enablecompass_twi_id: TWI controller to usecompass_twi_addr: TWI
address to usecompass_int: interrupt GPIO
configurationConfiguration example:?12345 blue
tooth[bt_para]bt_used: 0 to disable; 1 to enablebt_uart_id: UART
controller to usebt_wakeup: wakeup GPIO configurationbt_gpio:
optional bluetooth pin GPIO configurationbt_rst: = reset GPIO
configurationConfiguration example:?123456 i2s
configuration[i2s_para]i2s_used: 0 to disable; 1 to
enablei2s_channel: channel control; 1 for one, 2 for two
channelsi2s_mclk: master clock signal GPIO configurationi2s_bclk:
bit clock signal GPIO configurationi2s_lrclk: word clock
(left/right) signal GPIO configurationi2s_dout0: digital out 0 GPIO
configurationi2s_dout1: (optional) digital out 1 GPIO
configurationi2s_dout2: (optional) digital out 2 GPIO
configurationi2s_dout3: (optional) digital out 3 GPIO
configurationi2s_din: multiplexed in signal GPIO
configurationConfiguration example:?1234567891011 spdif
configuration[spdif_para]spdif_used: 0 to disable; 1 to
enablespdif_mclk: optional master clock GPIO
configurationspdif_dout: digital out GPIO configurationspdif_din:
digital in GPIO configurationConfiguration example:?12345 audio
configuration[audio_para]audio_used: 0 to disable; 1 to
enablespeakers audio_pa_ctrl: PA controller GPIO
configurationaudio_lr_change: 0 for normal operation; 1 to swap
left and right channelsplayback_used: 0 to disable; 1 to enable
This is a linux-sunxi specific extentioncapture_used: 0 to
dissable; 1 to enable This is a linux-sunxi specific
extentionConfiguration example:?123456 infrared remote
configuration[ir_para]ir_used: 0 to disable; 1 to enableir0_rx:
receiver GPIO configurationir0_tx: transmitter GPIO
configurationir1_rx: receiver GPIO configurationir1_tx: transmitter
GPIO configurationConfiguration example:?123456 pmu
configuration[pmu_para]pmu_used: 0 to disable; 1 to
enablepmu_used2: 0 to disable; 1 to enable secondary PMUpmu_twi_id:
TWI controller to usepmu_twi_addr: TWI address to usepmu_irq_id:
interrupt to use; 0 = NMI; 1 - 15 = interrupt 1 to
15pmu_battery_rdc: battery internal resistance in mpmu_battery_cap:
battery capacity in mAhpmu_init_chgcur: initial charging current in
mA; 300, 400 ... 1800pmu_init_chgcur2: initial charging current in
mA for secondary PMU; 300, 400 ... 1800pmu_earlysuspend_chgcur2
early suspend charging current in mA; 300, 400 ...
1800pmu_suspend_chgcur: suspended charging current in mA; 300, 400
... 1800pmu_suspend_chgcur2: suspended charging current in mA for
secondary PMU; 300, 400 ... 1800pmu_resume_chgcur: normal charging
current in mA; 300, 400 ... 1800pmu_resume_chgcur2: normal charging
current in mA for secondary PMU; 300, 400 ...
1800pmu_shutdown_chgcur: powered down charge current in mA; 300,
400 ... 1800pmu_shutdown_chgcur2: powered down charge current in mA
for secondary PMU; 300, 400 ... 1800pmu_init_chgvol: initial
charging target voltage in mV;
4100/4150/4200/4360pmu_init_chgend_rate: initial charging current
ratio in %; 10, 15pmu_init_chg_enabled: 0 to disable; 1 to
enablepmu_init_adc_freq: initial ADC sampling rate in Hz;
25/50/100/200pmu_init_adc_freqc: initial ADC coulomb meter sampling
rate in Hz; 25/50/100/200pmu_init_chg_pretime: initial precharge
timeout in minutes; 40/50/60/70pmu_init_chg_csttime: initial
constant charging current timeout in minutes;
360/480/600/720pmu_bat_para1: = battery charge LUT in
%pmu_bat_para2: = battery charge LUT in %pmu_bat_para3: = battery
charge LUT in %pmu_bat_para4: = battery charge LUT in
%pmu_bat_para5: = battery charge LUT in %pmu_bat_para6: = battery
charge LUT in %pmu_bat_para7: = battery charge LUT in
%pmu_bat_para8: = battery charge LUT in %pmu_bat_para9: = battery
charge LUT in %pmu_bat_para10: = battery charge LUT in
%pmu_bat_para11: = battery charge LUT in %pmu_bat_para12: = battery
charge LUT in %pmu_bat_para13: = battery charge LUT in
%pmu_bat_para14: = battery charge LUT in %pmu_bat_para15: = battery
charge LUT in %pmu_bat_para16: = battery charge LUT in %; should
always be 100pmu_usbvol_limit: 0 no USB voltage limiter; 1 = limit
USB voltageusb pmu_usbvol: USB voltage limit in mV; 4000, 4100 ...
4700pmu_usbcur_limit: 0 no USB current limiter; 1 = limit USB
currentpmu_usbcur: USB current limit in mA;
100/500/900pmu_pwroff_vol: boot hardware protection voltage in mV;
2600, 2700 ... 3300pmu_pwron_vol: running hardware protection
voltage in mV; 2600, 2700 ... 3300pmu_pekoff_time: Power Enable
Key, short power button off delay in ms; 4000, 6000, 8000,
10000pmu_pekoff_en: 0 to disable; 1 to enable power button power
offpmu_peklong_time: long power off button delay in ms; 1000, 1500,
2000, 2500pmu_pekon_time: power on button delay in ms; 128, 1000,
2000, 3000pmu_pwrok_time: power 'ok' delay in ms; 8,
64pmu_pwrnoe_time: n_oe from low to high shutdown delay time in ms;
128, 1000, 2000, 3000pmu_intotp_en: 0 to disable; 1 to enable over
temperature protectionpmu_suspendpwroff_vol: shutdown voltage when
suspended and battery is lowpmu_batdeten: Battery detection
enabledpmu_adpdet: adapter detect GPIO configurationConfiguration
example:?1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556
recovery key configuration[recovery_key]key_min: minimal length for
the key to be depressed in secondskey_max: maximal length for the
key to be depressed in secondsExample configuration:?12 dvfs
voltage-frequency table configurationDefine at which frequency what
voltage should be set. Recommended defaults:voltagefrequency
range1.50 v1008 MHz - 1056 MHz1.40 v912 MHz - 1008 MHz1.35 v864 MHz
- 912 MHz1.30 v624 MHz - 864 MHz1.25 v60 MHz - 624
MHz[dvfs_table]max_freq: cpu maximum frequency in Hz; can not be
more than 1008 MHzmin_freq: cpu minimum frequency in Hz; can not be
less than 60 MHzlv_count: number of lv_freq/lv_volt pairs; must be
< 16lv1_freq: state 1 frequencylv1_volt: state 1
voltage?12345678910111213141516171819 led configurationLEDs are
accessible via sys-fs; for example on the cubietruck you can find
the following directory: /sys/class/leds/blue\:ph21\:led1 `cat` the
file trigger to see the triggers that can be set in .fex files.
Currently these arenone (kinda defeats the purpose of setting a
trigger)rfkill0battery-charging-or-fullbattery-chargingbattery-fullbattery-charging-blink-full-solidac-onlineusb-onlinemmc0mmc1timerheartbeatcpu0cpu1default-onrfkill1rfkill2How
much they make sense - experiment. I'd be especially curious about
the effects of rfkill settings.[leds_para]Configuration
example:?123456789 dynamic configuration=== [dynamic] Configuration
example:?12 Categories: FexTutorialCreate accountLog
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