版本：android 6.0
模組：移遠ec20 r2.1 pcie介面
參考文件中有描述不全的，結合網上搜尋資料，整理一下移植注意事項
linux kernel configure by "make menuconfig arch=arm64"
1.1 usb driver configure for uc15/uc20/ec20
device drivers --->
[*] usb support --->
<*> usb serial converter support
[*] usb generic serail driver
[*] usb driver for gsm and cmda modems
修改：autochips/kernel/drivers/usb/serial/option.c 檔案，新增ec20模組的註冊時的vid和pid號，以及生成裝置階段的介面4用於網路裝置
static const struct usb_device_id option_ids = , /* zte ac8700 */
, /* onda h600/zte mf330 */
, /* simcom sim5218 */
//ec20 yiyuan 4g lte module configure
#if 1//added by quectel
, /* quectel uc15 */
, /* quectel uc20 */
, /* quectel ec20 */
, /* quectel ec25/ec20 r2.0 */
, /* quectel ec21 */
#endif
, }static int option_probe(struct usb_serial *serial,
const struct usb_device_id *id)
, /* quectel uc15 */
, /* quectel uc20 */
, /* quectel ec20 */
, /* quectel ec25/ec20 r2.0 */
, /* quectel ec21 */
#endif
/drivers/net/usb/qmi_wwan.c 新增
#if 1 //added by quectel
, /* quectel uc15 */
, /* quectel uc20 */
, /* quectel ec20 */
, /* quectel ec25/ec20 r2.0 */
, /* quectel ec21 */
#endif
/drivers/usb/serial/usb_wwan.c 新增
static struct urb *usb_wwan_setup_urb(struct usb_serial *serial, int endpoint,
int dir, void *ctx, char *buf, int len,void (*callback) (struct urb *))
#if 1 //added by quectel for zero packet
if (dir == usb_dir_out)
#endif
return urb;
修改啟動指令碼/system/core/rootdir/init.rc
service ril-daemon /system/bin/rild -l /system/lib64/libreference-ril.so
class main
socket rild stream 660 root radio
socket rild-debug stream 666 radio system
user root
group radio cache inet misc audio sdcard_rw log
service quectel-pppd /etc/ppp/init.quectel-pppd
class main
user root
group radio cache inet misc log
disabled
modifying the right of service ril-daemon
serivce ril-daemon require root privilege.
comment out the function switchuser() in the file hardware/ril/rild/rild.c. as below:
openlib:
#endif
//switchuser();
extract quectel's reference-ril.zip to hardware/ril/reference-ril/
re-build your android source code
***
問題點：
build/core/base_rules.mk:157: *** hardware/ril/reference-ril: module.target.executables.chat already defined by external/ppp/chat. stop.
build/core/base_rules.mk:157: *** hardware/ril/reference-ril: module.target.executables.chat already defined by external/ppp/chat. stop.
刪除external/ppp/chat新增cmiot到系統預設apn中，一般有下面幾個位置
1. frameworks/base/core/res/res/xml/apns.xml
2. 我的a64在： device/softwinner/common/rild/apns-conf_sdk.xml
3. rk平台中,採用此路徑: device/rockchip/common/phone/etc/apns-full-conf.xml
新增內容為：
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