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AP6255 Bluetooth

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Is there any other firmware for the AP6255 available, besides the one made available for Khadas VIM at
https://github.com/khadas/android_hardware_amlogic_wifi/tree/Vim/bcm_ampak/config/6255/BT

or the one for the Raspberry Pi 3+ available e.g. at

https://github.com/OpenELEC/misc-firmware/blob/master/firmware/brcm/BCM43430A1.hcd

which uses also the same chipset?

 

I am trying to make Bluetooth working on an Orange Pi Lite2. So far I had no success loading the firmware by issuing

 

root@orangepilite2:~# brcm_patchram_plus --patchram /lib/firmware/brcm/BCM43430A1.hcd --enable_hci --bd_addr 11:22:33:44:55:66 --no2bytes --tosleep 1000 /dev/ttyS1

root@orangepilite2:~# brcm_patchram_plus --patchram /lib/firmware/brcm/BCM4345C0.hcd  --enable_hci --bd_addr 11:22:33:44:55:66 --no2bytes --tosleep 1000 /dev/ttyS1

 

Any suggestions?

 

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2 hours ago, data said:

Is there any other firmware for the AP6255 available,

While doing patches to get WiFi working on OPiLite2 a month ago, I've commited the right firmware (nothing releated to brcm43430 ...) :

https://github.com/armbian/firmware/commit/f8fae57a89edae0692eb90f1d94c23a0d05c4402

So, nightly builds should already have WiFi working out-of-the-box ...

(But, for Bluetooth, noone worked on making DT for it ...)

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Thank you for your reply.

 

Your firmware is included and it gets loaded at boot, bringing WiFi to life. So I don't need any additional firmware for bluetooth?

 

 

How do I proceed then? Use hciattach to the UART, to make the device visible?

 

 

 

 

 

 

 

 

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2 hours ago, data said:

How do I proceed then? Use hciattach to the UART, to make the device visible?

I have no idea ... Maybe, yes, simply to activate UART, but maybe more in DT ...

 

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There's no matching UART. 

Is Bluetooth working in the old/original sunxi image?

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Unfortunatelly, there is no matching dts for the h6 nor sun50i-h6-uart1.dtbo

 

 

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@data

You can decompile the dtb from a working bluetooth ap6255 or Broadcom BCM43455 with dtc -I dtb -O dts <file>

dtc -I dtb -O dts ./cache/sources/u-boot/h6-hdmi-rebased-1/arch/arm/dts/sun50i-h6-orangepi-lite2.dtb

has only the debug port

uart0-ph {
                               pins = "PH0", "PH1";
                               function = "uart0";
                               phandle = <0x9>;
                       };

Im missing the pindef uart1 and pcm for the drive

uart1_pins: uart1-pins {

               pins = "PG6", "PG7";

               function = "uart1";

           };


           uart1_rts_cts_pins: uart1-rts-cts-pins {

               pins = "PG8", "PG9";

               function = "uart1";

           };

and uart1

&uart1 {
        pinctrl-names = "default";
        pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
        status = "okay";
    };


 

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So what is the proper way to do it?

 

- decompile the sun50i-h6-orangepi-lite2.dtb, modify the dts and create a new dtb via armbian-add-overlay <overlay_file.dts>

or

- create an overlay with just the uart1 relevant details?

 

 

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-First find a image with working bluetooth.

-decompile the dtb

-modify the dtb on your orangepilite2 in root@orangepilite2:/boot/dtb/allwinner#

-if it is is working write a patch in patch/kernel/sunxi-dev-h6

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Ok, here's something:

I mounted the boot partition from the BETA Ubuntu Image ( OrangePi_Lite2_Ubuntu16.04_Server_BETA ) from http://orangepi.org/
 

$ fdisk -l OrangePi_Lite2_Ubuntu16.04_Server_BETA.img
Medium OrangePi_Lite2_Ubuntu16.04_Server_BETA.img: 1,4 GiB, 1468006400 Bytes, 2867200 Sektoren
Einheiten: sectors von 1 * 512 = 512 Bytes
Sektorengröße (logisch/physisch): 512 Bytes / 512 Bytes
I/O Größe (minimal/optimal): 512 Bytes / 512 Bytes
Typ der Medienbezeichnung: dos
Medienkennung: 0xdecd62b7

Gerät                                       Boot  Start    Ende Sektoren Größe Id Typ
OrangePi_Lite2_Ubuntu16.04_Server_BETA.img1       40960  143359   102400   50M  c W95 FAT32 (LBA)
OrangePi_Lite2_Ubuntu16.04_Server_BETA.img2      143360 2457599  2314240  1,1G 83 Linux

$ mount -o loop,offset=20971520 OrangePi_Lite2_Ubuntu16.04_Server_BETA.img /mnt/tmp

found a .dtb in the orangepi folder called OrangePiH6.dtb and decompiled it with:

dtc -I dtb -O dts OrangePiH6.dtb

I have attached the .dtb as well as the .dts

Here are the relevant entries for uart1:

 

                        uart1@0 {
                                linux,phandle = <0xe8>;
                                phandle = <0xe8>;
                                allwinner,pins = "PG6", "PG7", "PG8", "PG9";
                                allwinner,function = "uart1";
                                allwinner,pname = "uart1_tx", "uart1_rx", "uart1_rts", "uart1_cts";
                                allwinner,muxsel = <0x2>;
                                allwinner,pull = <0x1>;
                                allwinner,drive = <0xffffffff>;
                                allwinner,data = <0xffffffff>;
                        };

                        uart1@1 {
                                linux,phandle = <0xe9>;
                                phandle = <0xe9>;
                                allwinner,pins = "PG6", "PG7", "PG8", "PG9";
                                allwinner,function = "uart1";
                                allwinner,pname = "uart1_tx", "uart1_rx", "uart1_rts", "uart1_cts";
                                allwinner,muxsel = <0x7>;
                                allwinner,pull = <0x1>;
                                allwinner,drive = <0xffffffff>;
                                allwinner,data = <0xffffffff>;
                        };

 

Then, there is another uart specified, which is probably related to bluetooth:

 

                uart@05000400 {
                        compatible = "allwinner,sun50i-uart";
                        device_type = "uart1";
                        reg = <0x0 0x5000400 0x0 0x400>;
                        interrupts = <0x0 0x1 0x4>;
                        clocks = <0x1f>;
                        pinctrl-names = "default", "sleep";
                        uart1_port = <0x1>;
                        uart1_type = <0x4>;
                        status = "okay";
                        pinctrl-0 = <0xe8>;
                        uart1_bt = <0x1>;
                        pinctrl-1 = <0xe9>;
                };

 

Finally, there are two entries at the bottom of the dts which look like they are relevant for bluetooth:

 

        bt {
                compatible = "allwinner,sunxi-bt";
                clocks = <0xd7>;
                bt_power = "vcc-wifi";
                bt_io_regulator = "vcc-wifi-io";
                status = "okay";
                device_type = "bt";
                bt_rst_n = <0xd8 0xc 0x4 0x1 0xffffffff 0xffffffff 0x0>;
        };

        btlpm {
                compatible = "allwinner,sunxi-btlpm";
                uart_index = <0x1>;
                status = "okay";
                device_type = "btlpm";
                bt_hostwake_enable = <0x1>;
                bt_wake = <0xd8 0xc 0x2 0x1 0xffffffff 0xffffffff 0x1>;
                bt_hostwake = <0xd8 0xc 0x1 0x0 0xffffffff 0xffffffff 0x0>;
        };

 

 

Is this sufficient to create an updated sun50i-h6-orangepi-lite2.dts?

 

 

 

 

OrangePiH6.dtb

OrangePiH6.dts

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On Orange Pi Lite 2, using bionic nightly with 4.18.17-sunxi64 kernel. 

 

dmessage shows everthing ok for AP6255

 

```

[   15.705964] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[   15.711588] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[   15.908540] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[   16.139476] Bluetooth: Core ver 2.22
[   16.139548] NET: Registered protocol family 31
[   16.139551] Bluetooth: HCI device and connection manager initialized
[   16.139570] Bluetooth: HCI socket layer initialized
[   16.139576] Bluetooth: L2CAP socket layer initialized
[   16.139617] Bluetooth: SCO socket layer initialized
[   16.327571] Bluetooth: Generic Bluetooth SDIO driver ver 0.1
[   16.486332] EXT4-fs (zram0): mounted filesystem without journal. Opts: discard
[   18.496780] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[   18.633959] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Feb 27 2018 03:15:32 version 7.45.154 (r684107 CY) FWID 01-4fbe0b04
[   27.682340] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   27.707595] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   28.374744] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  548.562865] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 1188.296553] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 1188.296559] Bluetooth: BNEP filters: protocol multicast
[ 1188.296571] Bluetooth: BNEP socket layer initialized
 

```

 

After installing bluez, hci0 shows up.

 

```

ma@orangepilite2:~$ hciconfig
hci0:    Type: Primary  Bus: SDIO
    BD Address: 00:00:00:00:00:00  ACL MTU: 0:0  SCO MTU: 0:0
    DOWN 
    RX bytes:0 acl:0 sco:0 events:0 errors:0
    TX bytes:0 acl:0 sco:0 commands:0 errors:0

```

 

However it cannot be brought up.

 

```

ma@orangepilite2:~$ sudo hciconfig hci0 up
Can't init device hci0: Input/output error (5)

```

 

can anybody shed some light? Is it a problem of bsp or I missed something important.

 

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From what I understand is, that you have to attach the hciadapter to the uart, e.g.

$ hciattach /dev/ttyXXX any

But since the corresponding UART is not yet defined in the .dts (see above) it is not recognized by the kernel.

So first you have to add the uart settings to the .dts

 

 

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3 minutes ago, data said:

From what I understand is, that you have to attach the hciadapter to the uart, e.g.


$ hciattach /dev/ttyXXX any

But since the corresponding UART is not yet defined in the .dts (see above) it is not recognized by the kernel.

So first you have to add the uart settings to the .dts

 

 

 

Thank you very much. I will try to rebuild the kernel tomorrow.

 

One more question. I am not familiar with wifi/bt combo device. In schematic, there are usually some gpios used to as WIFI_REG_ON, BT_REG_ON (Or BT_RESET), HOST_WAKE_BT, BT_WAKE_HOST, etc. Are those gpios controlled by wifi or bluetooth driver? or they are controlled by userspace program via linux GPIO?

 

 

 

 

 

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I tried a new approach on bringing bluetooth to life...

With the current nightly, I noticed some complaints about a missing firmware:

[   11.484843] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.xunlong,orangepi-lite2.txt failed with error -2

 

Which was easily fixed by

root@orangepilite2:~# cp /lib/firmware/rkwifi/nvram_ap6255.txt /lib/firmware/brcm/brcmfmac43455-sdio.xunlong,orangepi-lite2.txt

 

 

But UART1,  connected to the ap6255 according to the official schematics is not defined in the dtb I found at

/boot/dtb-5.0.9-sunxi64/allwinner/sun50i-h6-orangepi-lite2.dtb

 

 

Now I am stuck with bringing UART1 aka /dev/ttyS1 to life. So far, I tried adding an overlay to /boot/armbianEnv.txt:

There is one which looks promising at /boot/dtb/allwinner/overlay/sun50i-h6-uart1.dtbo

So adding 'overlays=uart1' was the next step but I still don't get ttyS1 to work.

 

Comparing the other dtbos, I noticed that some contain definitions for the RTS/CTS pins

dtc -I dtb -O dts /boot/dtb/allwinner/overlay/sun50i-h6-uart2.dtbo

 

What am I missing?

 

[By the way, I also tried adding uart1 to the dtb, without success...]

 

Schematics are at http://linux-sunxi.org/images/4/4c/OrangePi_Lite2_Schematics_v2.0.pdf

 

 

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