Solved Raspberry Pi 3 B+, GPIO control

serjsk8

serjsk8

Hello,
I have little Raspberry Pi 3 B+ and I installed FreeBSD 12.0-RELEASE on it:
Code: 
# uname -a
FreeBSD 12.0-RELEASE r341666 GENERIC  arm64

I traed to control GPIO via gpioctl():
Code: 
# dmesg | grep gpio
gpio0: <BCM2708/2835 GPIO controller> mem 0x7e200000-0x7e2000b3 irq 22,23 on simplebus0
gpiobus0: <OFW GPIO bus> on gpio0
gpioc0: <GPIO controller> on gpio0
gpioled0: <GPIO LEDs> on ofwbus0
gpioled0: <led1> failed to map pin

Code: 
# kldstat
Id Refs Address                Size Name
1   17 0xffff000000000000  13d1480 kernel
2    1 0xffff0000013d2000    40e18 cc_htcp.ko
4    1 0xffff000001456000    30698 accf_data.ko
5    1 0xffff000001487000    30a20 accf_http.ko
6    1 0xffff0000014b8000    441c8 fuse.ko
7    1 0xffff0000014fd000    306c8 accf_dns.ko
8    1 0xffff000053400000    41000 tmpfs.ko
9    1 0xffff000053441000    31000 pflog.ko
10    1 0xffff000053472000    61000 pf.ko

Code: 
# gpioctl -lv
pin 00:    0    pin 0<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 01:    1    pin 1<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 02:    1    pin 2<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 03:    1    pin 3<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 04:    1    pin 4<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 05:    1    pin 5<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 06:    1    pin 6<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 07:    0    pin 7<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 08:    0    pin 8<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 09:    0    pin 9<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 10:    0    pin 10<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 11:    0    pin 11<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 12:    1    pin 12<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 13:    0    pin 13<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 14:    1    pin 14<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 15:    1    pin 15<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 16:    0    pin 16<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 17:    0    pin 17<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 18:    0    pin 18<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 19:    0    pin 19<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 20:    0    pin 20<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 21:    0    pin 21<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 22:    0    pin 22<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 23:    0    pin 23<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 24:    0    pin 24<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 25:    0    pin 25<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 26:    0    pin 26<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 27:    0    pin 27<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 28:    1    pin 28<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 29:    0    pin 29<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 30:    0    pin 30<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 31:    0    pin 31<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 32:    1    pin 32<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 33:    1    pin 33<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 34:    1    pin 34<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 35:    1    pin 35<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 36:    1    pin 36<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 37:    1    pin 37<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 38:    1    pin 38<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 39:    1    pin 39<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 40:    0    pin 40<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 41:    0    pin 41<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 42:    1    pin 42<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 43:    1    pin 43<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 44:    1    pin 44<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 45:    1    pin 45<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 46:    1    pin 46<IN>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 47:    1    pin 47<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 48:    1    pin 48<>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 49:    1    pin 49<PU>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 50:    1    pin 50<PU>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 51:    1    pin 51<PU>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 52:    1    pin 52<PU>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>
pin 53:    1    pin 53<PU>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>

I have connected LED to PINs
Although I can change pin status, change it to 0 or 1. Change it to IN or OUT status ...
LED status is not changed, it is always ON.
I can not turn off LED via gpioctl()
It is always ON.

Maybe I'm missing some Kernel module?
Or maby logical number of Pin does not correspond with physical position?
Someone has experience with GPIO?

Best regards,
 
I can tell you that all those UNKNOWN,UNKNOWN states do not look correct.
GPIO pins might not work in a state like that.
Have you tried other FreeBSD versions.
Commonly on Arm you must use -CURRENT for newest features.

serjsk8 said:
maybe logical number of Pin does not correspond with physical position?
Click to expand...
That is correct. The FreeBSD pin numbers are different that the physical pin numbers

serjsk8 said:
Maybe I'm missing some Kernel module?
Click to expand...
No GPIO is built-in on all Arm images. Ready to use.
 
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