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本節以修改WiFi/BT模組為例，演示修改替換一個模塊的方法。

在部分版本的的R329 Tina中（如全志官方對外release的v0.5版本R329 Tina），EVB5方案配置的Realtek 8723D無線模組。如果我們要替換成全志的XR829無線模組要怎么做呢？大概需要如下幾步：

修改內核配置

首先，我們先獲取環境變量，選好方案：

source build/envsetup.sh lunch

然后make kernel_menuconfig配置內核：

make kernel_menuconfig

進行無線模組配置選項：

Device Drivers > Network device support > Wireless LAN

可以看到當前選擇的模組是Realtek 8723D

*表示編譯成模塊，可以在啟動的時候實用啟動腳本加載，<*>表示編譯到內核。

我們將Realtek 8723D反選，并選上XR829：

修改Tina配置

make menuconfig

Firmware

進入Firmware目錄，反選r8723ds-firmware，并選上xr829-firmware和xr829 with 40M sdd。xr829 with 40M sdd意思是XR829采用40MHz的外掛晶振。

<*> xr829-firmware..................................... Xradio xr829 firmware [*] xr829 with 40M sdd

Wireless Driver

進入Kernel modules > Wireless Driver，反選kmod-net-rtl8723ds，并選上kmod-net-xr829和kmod-net-xrbtlpm，意思是啟動的時候加載xr829模塊。

重新編譯打包燒寫固件

make -j32 pack

燒寫固件后，使用wifi掃描demo測試，就可以掃描到附近的wifi信號：

root@TinaLinux:/# wifi_scan_results_test********************************* ***Start scan!*** ********************************* bssid / frequency / signal level / flags / ssid 64:6e:97:5a:5a:e4 2462 -55 [WPA-EAP-CCMP+TKIP][WPA2-EAP-CCMP+TKIP][ESS] AWOffice 66:6e:97:1a:5a:e4 2462 -55 [WPA2-PSK-CCMP][ESS] AWTest 7e:b5:9b:2d:e1:63 2437 -56 [WPA-PSK-CCMP+TKIP][WPA2-PSK-CCMP+TKIP][ESS] AW-IT-Test 66:6e:97:1b:14:42 2462 -56 [WPA-PSK-CCMP+TKIP][WPA2-PSK-CCMP+TKIP][ESS] AWTest 7c:b5:9b:fd:e1:bd 2437 -58 [WPA-EAP-CCMP+TKIP][WPA2-EAP-CCMP+TKIP][ESS] AWOffice 7c:b5:9b:fd:e1:63 2437 -58 [WPA-EAP-CCMP+TKIP][WPA2-EAP-CCMP+TKIP][ESS] AWOffice 7e:b5:9b:1d:e1:63 2437 -58 [WPA2-PSK-CCMP][ESS] AWTest 7e:b5:9b:1d:e1:bd 2437 -61 [WPA2-PSK-CCMP][ESS] AWTest 88:d7:f6:88:8b:c0 2412 -37 [WPA2-PSK-CCMP][WPS][ESS] AW-PDC-PD4-316Test 90:67:1c:f8:11:ac 2437 -36 [WPA-PSK-CCMP+TKIP][WPA2-PSK-CCMP+TKIP][WPS][ESS] AW-PDC-RTOS-MUSIC 00:6b:8e:4e:c0:08 2412 -45 [WPA-PSK-CCMP][WPA2-PSK-CCMP][ESS] AW-PDC-PD4-315test c8:4c:75:40:86:ff 2452 -54 [WPA-EAP-CCMP+TKIP][WPA2-EAP-CCMP+TKIP-preauth][ESS] Allwinner c4:f0:81:63:9d:31 2437 -59 [WPA2-PSK-CCMP][ESS] \x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00 f0:c9:d1:b3:15:49 2412 -55 [WPA-PSK-TKIP][WPA2-PSK-CCMP][ESS] AP-XRADIO 64:6e:97:5b:14:42 2462 -64 [WPA-EAP-CCMP+TKIP][WPA2-EAP-CCMP+TKIP][ESS] AWOffice bc:46:99:d6:62:7c 2462 -60 [WPA-PSK-CCMP][WPA2-PSK-CCMP][ESS] SochipR3 38:1c:1a:2e:b3:52 2437 -63 [WPA2-PSK-CCMP][ESS] AWTest ec:6c:9f:af:89:79 2447 -63 [WPA2-PSK-CCMP][ESS] AW-APD-GMSipv6 74:a5:28:9a:fc:d4 2432 -65 [WPA-PSK-CCMP+TKIP][WPA2-PSK-CCMP+TKIP][WPS][ESS] AW-PTD-HK 04:d4:c4:b9:b9:f8 2437 -65 [WPA2-PSK-CCMP][WPS][ESS] ipv6 ac:e3:42:9c:7f:79 2437 -68 [WPA2-PSK-CCMP][WPS][ESS] 00:1c:a3:14:6a:de 2422 -73 [WPA2-PSK-CCMP][ESS] AW-PD4-R818 8c:be:be:24:6f:ff 2422 -70 [WPA-PSK-CCMP+TKIP][WPA2-PSK-CCMP+TKIP][WPS][ESS] AW-PTD-TEST 7e:b5:9b:1d:e1:a3 2462 -75 [WPA2-PSK-CCMP][ESS] AWTest 80:e8:6f:d9:fd:a1 2412 -73 [WPA-EAP-CCMP][WPA2-EAP-CCMP][ESS] AWOffice 80:e8:6f:d9:fd:a2 2412 -73 [WPA2-PSK-CCMP][ESS] AWTest 80:8f:1d:8a:36:76 2452 -60 [WPA-PSK-CCMP][WPA2-PSK-CCMP][ESS] AW-PDC-PD2-TEST 38:1c:1a:2e:b3:51 2437 -63 [WPA-EAP-CCMP][WPA2-EAP-CCMP][ESS] AWOffice b8:55:10:94:90:b4 2427 -74 [WPA-PSK-CCMP][WPA2-PSK-CCMP][WPS][ESS] AW-ANC-TOTOLINK-N600RV2#34 80:e8:6f:d9:5d:62 2412 -75 [WPA2-PSK-CCMP][ESS] AWTest 80:e8:6f:d9:5d:61 2412 -76 [WPA-EAP-CCMP][WPA2-EAP-CCMP][ESS] AWOffice ****************************** Wifi get_scan_results: Success! ******************************

如果固件的模組不對應，使用wifi相關demo時會提示wifi打開失敗：

root@TinaLinux:/# wifi_scan_results_test connect wpa_supplicant failed,please check wifi driver! wifi on failed

修改藍牙配置

以上修改只是完成了模組wifi部分，bt部分這時候測試是會打開失敗的：

root@TinaLinux:/# bt_test root@TinaLinux:/# 58279.055755: [bt_manager_init:212]: enable default profile from bt config. 58279.055900: [bt_manager_enable:400]: bt manager version:Version:3.0.1.202012201630,builed time:Dec 29 2020-02:46:30 58279.055915: [bt_test_sta[ 144.123489] sunxi-bt soc@03000000:bt: block state already is 1 tus_cb:71]: bt is turnning on. [ 145.135907] sunxi-bt soc@03000000:bt: set block: 058290.178476: [btmg_device_on:56]: detect hci0...... 58293.179028: [btmg_device_on:56]: detect hci0...... 58296.179372: [btmg_device_on:56]: detect hci0...... ^C root@TinaLinux:/# 58299.179802: [btmg_device_on:56]: detect hci0...... 58302.180339: [btmg_device_on:56]: detect hci0...... 58305.180866: [btmg_device_on:56]: detect hci0...... 58308.181398: [btmg_device_on:61]: hci0 device available 58308.181471: [bt_test_status_cb:59]: BT is off 58308.181500: [bt_test_adapter_power_state_cb:43]: Failed to turn on bt 58308.181530: [bt_manager_enable:436]: init HCI device failed! 58308.181561: [bt_manager_gap_set_io_capability:1084]: Bt is off, This should not be called!(process:1559): GLib-GIO-CRITICAL **: g_dbus_connection_send_message_with_reply_sync: assertion 'G_IS_DBUS_CONNECTION (connection)' failed(process:1559): GLib-GIO-CRITICAL **: g_dbus_connection_send_message_with_reply_sync: assertion 'G_IS_DBUS_CONNECTION (connection)' failed

bt部分還需要修改相關配置文件 target/allwinner/r329-evb5/base-files/etc/bluetooth/bt_init.sh

#!/bin/sh bt_hciattach="hciattach"start_hci_attach() {h=`ps | grep "$bt_hciattach" | grep -v grep`[ -n "$h" ] && {killall "$bt_hciattach"sleep 1}#8723ds h5 initecho 0 > /sys/class/rfkill/rfkill0/state;sleep 1echo 1 > /sys/class/rfkill/rfkill0/state;sleep 1"$bt_hciattach" -n ttyS1 xradio >/dev/null 2>&1 &sleep 1wait_hci0_count=0while truedo[ -d /sys/class/bluetooth/hci0 ] && breaksleep 1let wait_hci0_count++[ $wait_hci0_count -eq 8 ] && {echo "bring up hci0 failed"exit 1}done }start() {hcidump_xr=$(ps | grep "hcidump_xr" | grep -v grep | awk '{print $1}')if [ -n "$hcidump_xr" ] ;thenecho "hcidump_xr existed"elseecho "hcidump_xr start"hcidump_xr &fiif [ -d "/sys/class/bluetooth/hci0" ];thenecho "Bluetooth init has been completed!!"elsestart_hci_attachfid=`ps | grep bluetoothd | grep -v grep`[ -z "$d" ] && {/etc/bluetooth/bluetoothd startsleep 1} }ble_start() {if [ -d "/sys/class/bluetooth/hci0" ];thenecho "Bluetooth init has been completed!!"elsestart_hci_attachfihci_is_up=`hciconfig hci0 | grep RUNNING`[ -z "$hci_is_up" ] && {hciconfig hci0 up}MAC_STR=`hciconfig | grep "BD Address" | awk '{print $3}'`LE_MAC=${MAC_STR/2/C}OLD_LE_MAC_T=`cat /sys/kernel/debug/bluetooth/hci0/random_address`OLD_LE_MAC=$(echo $OLD_LE_MAC_T | tr [a-z] [A-Z])if [ -n "$LE_MAC" ];thenif [ "$LE_MAC" != "$OLD_LE_MAC" ];thenhciconfig hci0 lerandaddr $LE_MACelseecho "the ble random_address has been set."fifi }stop() {echo "nothing to do." }case "$1" instart|"")start;;stop)stop;;ble_start)ble_start;;*)echo "Usage: $0 {start|stop}"exit 1 esac

R329 EVB5 XR829 bt_init.sh文件下載連接：bt_init.sh

make kernel_menuconfig內核配置選上：

Networking support > Bluetooth subsystem support > Bluetooth device drivers <*> Xradio Bluetooth sleep driver support <*> Xradio Bluetooth farmware debug interface support [*] Xradio Bluetooth sleep driver support for bluedriod

重新編譯打包燒錄固件，用BT demo，成功打開藍牙會有如下打印：

root@TinaLinux:/# bt_test root@TinaLinux:/# 3407.938316: [bt_manager_init:212]: enable default profile from bt config. 3407.938454: [bt_manager_enable:400]: bt manager version:Version:3.0.1.202012201630,builed time:Dec 29 2020-02:46:30 3407.938468: [bt_test_status_cb:71]: bt is turnning on. hcidump_xr start Bluetooth init has been completed!! /etc/bluetooth/bt_init.sh: line 99: hcidump_xr: not found 3408.306362: [bt_profile_global_init:356]: start bluealsa :1 times 3408.845050: [bt_test_adapter_power_state_cb:41]: Turn on bt successfully 3409.308667: [bt_test_status_cb:61]: BT is ON [ 66.468094] [BH_WRN] miss interrupt!

以上，一個無線模組就修改好了。

*rtl8723ds和XR829模組是pin to pin的，所以無需修改引腳配置。

相關閱讀：

• 錄音和播放—R329智能語音開發板入門
• WiFi連網—R329智能語音開發板入門

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