Hi,
I'm trying to make Miracast work on the NXP AOSP, my setup is iMX8QM MEK running Android 10.0.0_2.6.0.
- Hardware: MEK-MX8Q
- OS: Android 10 running kernel 5.4.70
- WI-FI chip: Realtek RTL8192CU
- TV: webOS TV UN80000PSD
I've compiled Android image from source just enabling support for the RTL8192CU as below:
--- a/arch/arm64/configs/imx_v8_android_defconfig
+++ b/arch/arm64/configs/imx_v8_android_defconfig
@@ -270,6 +270,7 @@ CONFIG_CFG80211=y
CONFIG_NL80211_TESTMODE=y
CONFIG_CFG80211_WEXT=y
CONFIG_MAC80211=y
+CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_RFKILL=y
CONFIG_RFKILL_INPUT=y
@@ -426,6 +427,7 @@ CONFIG_PPP_MPPE=y
CONFIG_PPTP=y
CONFIG_PPPOL2TP=y
CONFIG_USB_PEGASUS=m
+CONFIG_RTL8192CU=y
CONFIG_USB_RTL8150=m
CONFIG_USB_RTL8152=y
CONFIG_USB_LAN78XX=m
I'm able to see the device coming up without any issues:
[ 1689.343554] usb 2-1.3: new full-speed USB device number 8 using cdns-usb3
[ 1689.448008] usb 2-1.3: not running at top speed; connect to a high speed hub
[ 1689.456673] usb 2-1.3: New USB device found, idVendor=0bda, idProduct=8176, bcdDevice= 2.00
[ 1689.464985] healthd: battery l=85 v=3 t=35.0 h=2 st=2 c=400 fc=4000000 cc=32 chg=a
[ 1689.465106] usb 2-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1689.480816] usb 2-1.3: Product: 802.11n WLAN Adapter
[ 1689.486101] usb 2-1.3: Manufacturer: Realtek
[ 1689.490495] usb 2-1.3: SerialNumber: 00e04c000001
[ 1689.504784] rtl8192cu: Chip version 0x10
[ 1689.576929] rtl8192cu: Board Type 0
[ 1689.580625] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
[ 1689.586608] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
On the above log, the firmware rtl8192cufw_TMSC.bin is being used but I also did some tests with the rtl8192cufw.bin without any success too.
When I enable WiFi on the UI I got some errors as below, but the connection is accomplished:
[ 39.444710] xhci-cdns3: Ring expansion failed
[ 39.449360] xhci-cdns3: ERROR unknown event type 37
Please see the full dmesg log attached.
I'm able to connect to Wi-Fi without any problems, but when I open Screen Cast it can't find any nearby device to connect to. Should this work by default? Doing some tests with my cellphone I was able to see and connect to the TV.
Another thing that it's strange is that there is no menu on the Screen Cast page, normally there should be a three-dot menu where we can click on Enable Wireless Display but it is not visible to me, is there a way to confirm that the Wireless Display is enabled?
Thanks in advance,
