一，模块基本信息
1.官方介绍
SLM770A是美格智能最新推出的一款LTE Cat.4无线通讯模组，最大支持下行速率150Mbps及上行速率50Mbps。同时向下兼容现有的3G和2G网络，以确保即使在偏远地区也可以进行网络通信。
SLM770A模组支持分集接收和MIMO技术，优化数据传输的速度并提高通讯质量。支持NCM/PPP/ECM/TCP/UDP/DTSL/HTTP(S)/FTP/MQTT等多种拨号方式及内置网络协议。集成了UART/I2C/PCM/SPI/SDIO等丰富的硬件接口。广泛应用于工业路由、安防监控、CPE、车载DVR、共享等领域。
2.子端口说明
虚拟出来的各个子端口主要用来实现AT命令收发，网络通信，GPS，诊断等功能。
二，驱动移植与RIL适配
1.添加usb串口驱动
1.1 内核配置打开相应宏
代码路径：longan/kernel/linux-4.9/arch/arm64/configs/sun50iw10p1smp_a100_android_defconfig
#串口驱动
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_OPTION=y
CONFIG_USB_SERIAL_QT2=y
#RNDIS驱动支持
CONFIG_MII=y
CONFIG_USB_USBNET=y
CONFIG_USB_NET_CDCETHER=y
CONFIG_USB_NET_RNDIS_HOST=y
1.2 修改option驱动，添加模块支持
代码路径：longan/kernel/linux-4.9/drivers/usb/serial/option.c
diff --git a/longan/kernel/linux-4.9/drivers/usb/serial/option.c b/longan/kernel/linux-4.9/drivers/usb/serial/option.c
index 7ca999924d..965b6ed3ce 100644
--- a/longan/kernel/linux-4.9/drivers/usb/serial/option.c
+++ b/longan/kernel/linux-4.9/drivers/usb/serial/option.c
@@ -88,6 +88,18 @@ static void option_instat_callback(struct urb *urb);
#define HUAWEI_PRODUCT_E173S6 0x1C07
#define HUAWEI_PRODUCT_E261 0x1446
+//fy add for meig modem supported start.
+#define MEIG_VENDOR_ID 0x2DEE
+#define MEIG_PRODUCT_SRM815 0x4D22
+#define MEIG_PRODUCT_SRM815_ECM 0x4D23
+#define MEIG_PRODUCT_SLM790 0x4D20
+#define MEIG_PRODUCT_SLM770 0x4D57
+#define MEIG_QCM_VENDOR_ID 0x05C6
+#define MEIG_QCM_PRODUCT_SLM750_SRM815_SLM868 0xF601
+#define MEIG_PRODUCT_SRM811_RNDIS 0x4D51
+#define MEIG_PRODUCT_SRM811_NCM 0x4D52
+//fy add for meig modem supported end.
+
#define QUANTA_VENDOR_ID 0x0408
#define QUANTA_PRODUCT_Q101 0xEA02
#define QUANTA_PRODUCT_Q111 0xEA03
@@ -593,6 +605,35 @@ static const struct option_blacklist_info yuga_clm920_ac5_blacklist = {
static const struct usb_device_id option_ids[] = {
+ //fy add for meig modem supported start.
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x03, 0x03) }, //3g app
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x03, 0x13) }, //app
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x03, 0x01) }, //modem
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x03, 0x12) }, //at
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x03, 0x14) }, //gprs
+
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x02, 0x03) }, //3g app
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x02, 0x13) }, //app
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x02, 0x01) }, //modem
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x02, 0x12) }, //at
+ { USB_VENDOR_AND_INTERFACE_INFO(MEIG_VENDOR_ID, 0xff, 0x02, 0x14) }, //gprs
+
+ { USB_DEVICE(MEIG_VENDOR_ID, MEIG_PRODUCT_SRM815),
+ .driver_info = RSVD(4) | RSVD(5) | RSVD(6) | RSVD(7) },
+ { USB_DEVICE(MEIG_VENDOR_ID, MEIG_PRODUCT_SRM815_ECM),
+ .driver_info = RSVD(4) | RSVD(5) | RSVD(6) | RSVD(7)},
+ { USB_DEVICE(MEIG_QCM_VENDOR_ID, MEIG_QCM_PRODUCT_SLM750_SRM815_SLM868),
+ .driver_info = RSVD(4) | RSVD(5) | RSVD(6) | RSVD(7)},
+ { USB_DEVICE(MEIG_VENDOR_ID, MEIG_PRODUCT_SLM790),
+ .driver_info = RSVD(0) | RSVD(5) | RSVD(6) | RSVD(7)},
+ { USB_DEVICE(MEIG_VENDOR_ID, MEIG_PRODUCT_SLM770),
+ .driver_info = RSVD(0) | RSVD(5) | RSVD(6) | RSVD(7)},
+ { USB_DEVICE(MEIG_VENDOR_ID, MEIG_PRODUCT_SRM811_RNDIS),
+ .driver_info = RSVD(0) | RSVD(1) },
+ { USB_DEVICE(MEIG_VENDOR_ID, MEIG_PRODUCT_SRM811_NCM),
+ .driver_info = RSVD(0) | RSVD(1) },
+ //fy add for meig modem supported end.
+{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
1.3 添加USB设备节点权限
代码路径：android/device/softwinner/ceres-common/ueventd.sun50iw10p1.rc
文件中添加以下配置内容：
/dev/ttyUSB* 0777 system system
1.4 编译更新内核
驱动加载后，插入模块时。dev/目录会生成ttyUSB串口设备：
console:/ # ls -l dev/ttyUSB*
crwxrwxrwx 1 system system 188, 0 2025-02-20 13:20 dev/ttyUSB0
crwxrwxrwx 1 system system 188, 1 2025-02-20 13:20 dev/ttyUSB1
crwxrwxrwx 1 system system 188, 2 2025-02-20 14:45 dev/ttyUSB2
2.添加RIL配置
2.1 驱动包解压
将Meig_Android_Driver_V5.0.7.3.zip解压到Android源码根目录vendor/meig 目录：
SLM770A 4G模块资料下载链接：https://download.csdn.net/download/weixin_45639314/90408097
2.2 在mk文件中添加美格ril配置
代码路径：android/device/softwinner/ceres-b6/ceres_b6.mk
diff --git a/android/device/softwinner/ceres-b6/ceres_b6.mk b/android/device/softwinner/ceres-b6/ceres_b6.mk
index 321272978e..8e36d8cd74 100644
--- a/android/device/softwinner/ceres-b6/ceres_b6.mk
+++ b/android/device/softwinner/ceres-b6/ceres_b6.mk
@@ -159,9 +159,9 @@ PRODUCT_PACKAGES += \
#PRODUCT_PACKAGES += AllwinnerGmsIntegration
-############################### 3G Dongle Support ###############################
+############################### 4G Dongle Support ###############################
# Radio Packages and Configuration Flie
-$(call inherit-product-if-exists, vendor/aw/public/prebuild/lib/librild/radio_common.mk)
+$(call inherit-product-if-exists, vendor/meig/meig_radio.mk)BUILD_WITH_GOOGLE_APPS := false
ifeq ($(strip $(BUILD_WITH_GOOGLE_APPS)), true)
2.3 添加HIDL配置
代码路径：android/device/softwinner/ceres-b6/configs/manifest.xml
diff --git a/android/device/softwinner/ceres-b6/configs/manifest.xml b/android/device/softwinner/ceres-b6/configs/manifest.xml
index fb82972d59..b9c7cb5178 100644
--- a/android/device/softwinner/ceres-b6/configs/manifest.xml
+++ b/android/device/softwinner/ceres-b6/configs/manifest.xml
@@ -25,6 +25,24 @@<name>IUsb</name><instance>default</instance></interface>
+ </hal>
+ <hal format="hidl">
+ <name>android.hardware.radio.deprecated</name>
+ <transport>hwbinder</transport>
+ <version>1.0</version>
+ <interface>
+ <name>IOemHook</name>
+ <instance>slot1</instance>
+ </interface>
+ </hal>
+ <hal format="hidl">
+ <name>android.hardware.radio</name>
+ <transport>hwbinder</transport>
+ <version>1.0</version>
+ <interface>
+ <name>IRadio</name>
+ <instance>slot1</instance>
+ </interface></hal><hal format="hidl"><name>android.hardware.audio.effect</name>
二，调试
1.状态查看
console:/ # getprop | grep ril
[gsm.version.ril-impl]: [MEIG_RIL_Android7.x-later-V5.0.7.3]
[init.svc.vendor.meig-ril]: [running]
[init.svc.vendor.ril-daemon]: [stopped]
[ril.datachannel]: [/dev/ttyUSB1]
[rild.dongle_name]: [SLM770A]
[rild.libargs]: [-d /dev/ttyUSB2]
[rild.libpath]: [/vendor/lib/libmeig-ril.so]
[ro.boottime.vendor.meig-ril]: [5185500126]
[ro.radio.noawril]: [true]
[ro.radio.noril]: [false]
[sys.mgril.unrecverr]: [false]
[vendor.rild.libargs]: [-d /dev/ttyUSB2]
[vendor.rild.libpath]: [/vendor/lib/libmeig-ril.so]
2.usb串口驱动检查
adb root
adb shell
dmesg | grep option
打印以下信息：
3.查看节点
console:/ # cat sys/kernel/debug/usb/devicesT: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 5 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=2dee ProdID=4d57 Rev= 1.00
S: Manufacturer=Marvell
S: Product=Mobile Composite Device Bus
S: SerialNumber=200806006809080000
C:* #Ifs= 6 Cfg#= 1 Atr=c0 MxPwr=500mA
A: FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=03
I:* If#= 0 Alt= 0 #EPs= 1 Cls=e0(wlcon) Sub=01 Prot=03 Driver=rndis_host
E: Ad=87(I) Atr=03(Int.) MxPS= 64 Ivl=4096ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=rndis_host
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=88(I) Atr=03(Int.) MxPS= 64 Ivl=4096ms
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=89(I) Atr=03(Int.) MxPS= 64 Ivl=4096ms
E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0f(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=0e(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
：降维技术——主成分分析（PCA）)
