I.MX8QM EC20适配

发布时间:2024年01月21日

Android SDK:imx8_13.0.0_1.2.0(android 13 + u-boot 2022.04 + kernel 5.15.74)

一、内核修改

添加PID、VID。在“drivers/usb/serial/option.c”中可以看到EC25的PID和VID已经添加,而且这个EC25的PID和VID与EC20的相同,所以这里可以不用修改。
在这里插入图片描述
为了能支持QMI驱动还需要添加"drivers/net/usb/qmi_wwan_q.c",这个驱动可以向模块厂家索要。在合入下面patch。

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 697683e3f..3e1bb9881 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -2237,6 +2246,10 @@ static int option_probe(struct usb_serial *serial,
        if (iface_desc->bInterfaceClass == USB_CLASS_MASS_STORAGE)
                return -ENODEV;

+       if (serial->dev->descriptor.idVendor == QUECTEL_VENDOR_ID &&
+               serial->dev->descriptor.idProduct == QUECTEL_PRODUCT_EC25 &&
+               serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
+                   return -ENODEV;
        /*
         * Don't bind reserved interfaces (like network ones) which often have
         * the same class/subclass/protocol as the serial interfaces.  Look at

diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index f21f25a8c..547ffee88 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -423,6 +423,7 @@ static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port,
        struct usb_serial *serial = port->serial;
        struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
        struct urb *urb;
+       struct usb_device_descriptor *desc = &serial->dev->descriptor;

        urb = usb_alloc_urb(0, GFP_KERNEL);     /* No ISO */
        if (!urb)
@@ -435,6 +436,13 @@ static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port,
        if (intfdata->use_zlp && dir == USB_DIR_OUT)
                urb->transfer_flags |= URB_ZERO_PACKET;

+       if (dir == USB_DIR_OUT) {
+                if ((desc->idVendor == cpu_to_le16(0x1286) &&
+                     desc->idProduct == cpu_to_le16(0x4e3c)))
+                        urb->transfer_flags |= URB_ZERO_PACKET;
+                if (desc->idVendor == cpu_to_le16(0x2c7c))
+                        urb->transfer_flags |= URB_ZERO_PACKET;
+       }
        return urb;
 }

diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 4964f7b32..22386d8ef 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -37,7 +37,7 @@ obj-$(CONFIG_USB_NET_CX82310_ETH)     += cx82310_eth.o
 obj-$(CONFIG_USB_NET_CDC_NCM)  += cdc_ncm.o
 obj-$(CONFIG_USB_NET_HUAWEI_CDC_NCM)   += huawei_cdc_ncm.o
 obj-$(CONFIG_USB_VL600)                += lg-vl600.o
-obj-$(CONFIG_USB_NET_QMI_WWAN) += qmi_wwan.o
+obj-$(CONFIG_USB_NET_QMI_WWAN) += qmi_wwan_q.o
 obj-$(CONFIG_USB_NET_CDC_MBIM) += cdc_mbim.o
 obj-$(CONFIG_USB_NET_CH9200)   += ch9200.o
 obj-$(CONFIG_USB_NET_AQC111)   += aqc111.o

二、Android修改

1.添加IRadio

diff --git a/imx8q/mek_8q/manifest.xml b/imx8q/mek_8q/manifest.xml
index 4bdd35f..d37f2ca 100644
--- a/imx8q/mek_8q/manifest.xml
+++ b/imx8q/mek_8q/manifest.xml
@@ -1,4 +1,10 @@
 <manifest version="1.0" type="device" target-level="7">
+    <hal format="hidl">
+       <name>android.hardware.radio</name>
+       <transport>hwbinder</transport>
+       <fqname>@1.5::IRadio/slot1</fqname>
+       <fqname>@1.2::ISap/slot1</fqname>
+    </hal>
     <hal format="hidl">
        <name>android.hardware.graphics.allocator</name>
         <transport>hwbinder</transport>

diff --git a/imx8q/mek_8q/mek_8q.mk b/imx8q/mek_8q/mek_8q.mk
index 826b7f7..1c6716b 100644
--- a/imx8q/mek_8q/mek_8q.mk
+++ b/imx8q/mek_8q/mek_8q.mk
@@ -246,6 +261,37 @@ PRODUCT_PACKAGES += \
 PRODUCT_PROPERTY_OVERRIDES += \
     ro.rebootescrow.device=/dev/block/pmem0

+PRODUCT_PACKAGES += \
+    libhidlbase.vendor \
+    libhwbinder.vendor \
+    android.hardware.secure_element@1.0 \
+    android.hardware.secure_element@1.1 \
+    android.hardware.secure_element@1.2 \
+    android.hardware.radio.config@1.0 \
+    android.hardware.radio.config@1.1 \
+    android.hardware.radio.config@1.2 \
+    android.hardware.radio@1.5-radio-service \
+    android.hardware.radio.config@1.2-service \
+    android.hardware.radio.config@1.0-service \
+    android.hardware.radio@1.5.vendor \
+    android.hardware.radio@1.3.vendor \
+    android.hardware.radio@1.4.vendor \
+    android.hardware.radio.deprecated@1.0.vendor \
+    android.hardware.radio.config@1.0.vendor \
+    android.hardware.radio.config@1.1.vendor \
+    android.hardware.radio.config@1.2.vendor \
+    android.hardware.radio@1.5-radio-service \
+    android.hardware.radio.config@1.2-service \
+    android.hardware.radio.config@1.0-service \
+    android.hardware.radio.config@1.0.vendor \
+    android.hardware.radio.config@1.2.vendor \
+    android.hardware.radio@1.5.vendor \
+    android.hardware.radio@1.5.vendor  \
+    android.hardware.radio@1.6.vendor
+
 #DRM Widevine 1.4 L3 support
 PRODUCT_PACKAGES += \
     android.hardware.drm-service.widevine \

还需要修改“hardware/interfaces/compatibility_matrices”中文件,不然编译的时候会提示“error:files are incompatible”。如下:

diff --git a/compatibility_matrices/compatibility_matrix.7.xml b/compatibility_matrices/compatibility_matrix.7.xml
index 26b8d63..dd86e9b 100644
--- a/compatibility_matrices/compatibility_matrix.7.xml
+++ b/compatibility_matrices/compatibility_matrix.7.xml
@@ -584,6 +584,20 @@
             <instance>slot3</instance>
         </interface>
     </hal>
+    <hal format="hidl" optional="true">
+       <name>android.hardware.radio</name>
+       <version>1.0</version>
+       <version>1.1</version>
+       <version>1.2</version>
+       <version>1.4</version>
+       <version>1.5</version>
+       <interface>
+           <name>IRadio</name>
+           <instance>slot1</instance>
+           <instance>slot2</instance>
+           <instance>slot3</instance>
+       </interface>
+    </hal>
     <hal format="hidl" optional="true">
         <name>android.hardware.radio</name>
         <version>1.2</version>

2.配置SELinux 权限

diff --git a/imx8q/mek_8q/sepolicy/file_contexts b/imx8q/mek_8q/sepolicy/file_contexts
index e72e8b9..fa6cdca 100644
--- a/imx8q/mek_8q/sepolicy/file_contexts
+++ b/imx8q/mek_8q/sepolicy/file_contexts
@@ -35,3 +35,11 @@
 /sys/devices/platform/bus@5f000000/5f000000.pcie/pci0000:00/0000:00:00.0/0000:01:00.1/wakeup                                         u:object_r:sysfs_wakeup:s0
 #mek_8qxp
 /sys/devices/platform/bus@5f000000/5f010000.pcie/pci0000:00/0000:00:00.0/0000:01:00.1/wakeup                                         u:object_r:sysfs_wakeup:s0
+
+# 4G module
+/dev/ttyUSB[0-9]                               u:object_r:radio_device:s0
+/dev/ttyACM[0-9]                               u:object_r:radio_device:s0
+/dev/cdc-wdm[0-9]                              u:object_r:radio_device:s0
+/dev/qcqmi[0-9]                                        u:object_r:radio_device:s0
+/vendor/bin/hw/rild                            u:object_r:rild_exec:s0
+/dev/socket/rildOemHook                                u:object_r:rild_socket:s0

--- a/imx8q/mek_8q/ueventd.nxp.rc
+++ b/imx8q/mek_8q/ueventd.nxp.rc
@@ -18,6 +18,10 @@
 /dev/dma_heap/reserved    0666   system     system
 /dev/dma_heap/reserved-uncached    0666   system     system
 /dev/dma_heap/secure      0666   system     system
+/dev/ttyUSB*             0666   radio      radio
+/dev/ttyACM*             0666   radio      radio
+/dev/cdc-wdm*                    0666   radio      radio
+/dev/qcqmi*              0666   radio      radio

 # iio sensor sysfs properities
 /dev/iio:device*                                                         0660    system  system

diff --git a/system/core/init/devices.cpp b/system/core/init/devices.cpp
index d4a3cb9..52f3eaf 100644
--- a/system/core/init/devices.cpp
+++ b/system/core/init/devices.cpp
@@ -550,6 +550,8 @@ void DeviceHandler::HandleUevent(const Uevent& uevent) {
             int device_id = uevent.minor % 128 + 1;
             devpath = StringPrintf("/dev/bus/usb/%03d/%03d", bus_id, device_id);
         }
+    } else if (uevent.subsystem == "usbmisc" && !uevent.device_name.empty()) {
+       devpath = "/dev/" + uevent.device_name;
     } else if (StartsWith(uevent.subsystem, "usb")) {
         // ignore other USB events
         return;

添加"device/nxp/imx8q/sepolicy/rild.te"

allow rild usb_serial_device:chr_file { read write open ioctl };
allow rild rild:packet_socket { create bind write read };

3.添加ibreference-ril.so

diff --git a/imx8q/mek_8q/mek_8q.mk b/imx8q/mek_8q/mek_8q.mk
index 826b7f7..541e81f 100644
--- a/imx8q/mek_8q/mek_8q.mk
+++ b/imx8q/mek_8q/mek_8q.mk
@@ -94,8 +91,20 @@ PRODUCT_COPY_FILES += \
     $(CONFIG_REPO_PATH)/common/init/init.insmod.sh:$(TARGET_COPY_OUT_VENDOR)/bin/init.insmod.sh
+BOARD_HAVE_VENDOR_RIL := true   #添加的目的是为了避开SDK中libreference.so的编译。
+PRODUCT_COPY_FILES += \
+    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj_arm/SHARED_LIBRARIES/android.hardware.secure_element@1.0_intermediates/android.hardware.secure_element@1.0.so:$(TARGET_COPY_OUT_VENDOR)/lib/android.hardware.secure_element@1.0.so \
+    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj_arm/SHARED_LIBRARIES/android.hardware.secure_element@1.1_intermediates/android.hardware.secure_element@1.1.so:$(TARGET_COPY_OUT_VENDOR)/lib/android.hardware.secure_element@1.1.so \
+    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj_arm/SHARED_LIBRARIES/android.hardware.secure_element@1.2_intermediates/android.hardware.secure_element@1.2.so:$(TARGET_COPY_OUT_VENDOR)/lib/android.hardware.secure_element@1.2.so \
+    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj/SHARED_LIBRARIES/android.hardware.secure_element@1.0_intermediates/android.hardware.secure_element@1.0.so:$(TARGET_COPY_OUT_VENDOR)/lib64/android.hardware.secure_element@1.0.so \
+    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj/SHARED_LIBRARIES/android.hardware.secure_element@1.1_intermediates/android.hardware.secure_element@1.1.so:$(TARGET_COPY_OUT_VENDOR)/lib64/android.hardware.secure_element@1.1.so \
+    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj/SHARED_LIBRARIES/android.hardware.secure_element@1.2_intermediates/android.hardware.secure_element@1.2.so:$(TARGET_COPY_OUT_VENDOR)/lib64/android.hardware.secure_element@1.2.so \
+    $(CONFIG_REPO_PATH)/common/lib/lib32/libreference-ril-ec20.so:$(TARGET_COPY_OUT_VENDOR)/lib/libreference-ril.so \
+    $(CONFIG_REPO_PATH)/common/lib/lib64/libreference-ril-ec20.so:$(TARGET_COPY_OUT_VENDOR)/lib64/libreference-ril.so \
+    $(CONFIG_REPO_PATH)/common/lib/lib32/libril.so:$(TARGET_COPY_OUT_VENDOR)/lib/libril.so \
+    $(CONFIG_REPO_PATH)/common/lib/lib64/libril.so:$(TARGET_COPY_OUT_VENDOR)/lib64/libril.so \
+    $(CONFIG_REPO_PATH)/common/config/apns-conf.xml:$(TARGET_COPY_OUT_VENDOR)/etc/apns-conf.xml \
+    $(CONFIG_REPO_PATH)/common/config/ql-ril.conf:$(TARGET_COPY_OUT_VENDOR)/etc/ql-ril.conf

 # -------@block_storage-------
 # support metadata checksum during first stage mount

@@ -246,6 +255,37 @@ PRODUCT_PACKAGES += \
 PRODUCT_PROPERTY_OVERRIDES += \
     ro.rebootescrow.device=/dev/block/pmem0

+PRODUCT_PROPERTY_OVERRIDES += \
+    vendor.rild.libpath=/vendor/lib64/libreference-ril.so
+

diff --git a/imx8q/ProductConfigCommon.mk b/imx8q/ProductConfigCommon.mk
index 4bbd20e..9a16c65 100644
--- a/imx8q/ProductConfigCommon.mk
+++ b/imx8q/ProductConfigCommon.mk
@@ -370,7 +370,7 @@ PRODUCT_PACKAGES += \

 # wifionly device
 PRODUCT_PROPERTY_OVERRIDES += \
-    ro.radio.noril=yes
+    ro.radio.noril=no

 # -------@block_bluetooth-------
 PRODUCT_PACKAGES += \
  

另外:因为没有用到SDK编译出来的"ibreference-ril.so",所以在mek_8q.mk中添加“BOARD_HAVE_VENDOR_RIL := true”,并修改"hardware/ril/reference-ril/Android.mk",进行条件编译。

diff --git a/reference-ril/Android.mk b/reference-ril/Android.mk
index 8aeba23..b7648ef 100644
--- a/reference-ril/Android.mk
+++ b/reference-ril/Android.mk
@@ -2,6 +2,7 @@

 # XXX using libutils for simulator build only...
 #
+ifneq ($(BOARD_HAVE_VENDOR_RIL),true)
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)

@@ -56,3 +57,4 @@ else
   LOCAL_NOTICE_FILE:= $(LOCAL_PATH)/NOTICE
   include $(BUILD_EXECUTABLE)
 endif
+endif

4.其它修改

diff --git a/imx8q/mek_8q/overlay/frameworks/base/core/res/res/values/config.xml b/imx8q/mek_8q/overlay/frameworks/base/core/res/res/values/config.xml
index 298d50c..98fb56c 100755
--- a/imx8q/mek_8q/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/imx8q/mek_8q/overlay/frameworks/base/core/res/res/values/config.xml
@@ -76,6 +76,17 @@
         <item>"wifi,1,1,1,-1,true"</item>
         <item>"bluetooth,7,7,2,-1,true"</item>
         <item>"ethernet,9,9,2,-1,true"</item>
+        <item>"mobile,0,0,0,-1,true"</item>
+        <item>"mobile_mms,2,0,4,60000,true"</item>
+        <item>"mobile_supl,3,0,2,60000,true"</item>
+        <item>"mobile_dun,4,0,2,60000,true"</item>
+        <item>"mobile_hipri,5,0,3,60000,true"</item>
+        <item>"mobile_fota,10,0,2,60000,true"</item>
+        <item>"mobile_ims,11,0,2,60000,true"</item>
+        <item>"mobile_cbs,12,0,2,60000,true"</item>
+        <item>"wifi_p2p,13,1,0,-1,true"</item>
+        <item>"mobile_ia,14,0,2,-1,true"</item>
+        <item>"mobile_emergency,15,0,2,-1,true"</item>
     </string-array>

     <!-- Array of light sensor LUX values to define our levels for auto backlight brightness support.
@@ -189,13 +200,15 @@
         If true, this means that the device supports data connectivity through
         the telephony network.
         This can be overridden to false for devices that support voice and/or sms . -->
-    <bool name="config_mobile_data_capable">false</bool>
+    <bool name="config_mobile_data_capable">true</bool>
+    <bool name="config_sms_capable">true</bool>

     <!-- Boolean indicating whether system support sustained performance mode. -->
     <bool name="config_sustainedPerformanceModeSupported">true</bool>

     <!-- If the system has the input method for each display - enable per-display focus. -->
     <bool name="config_perDisplayFocusEnabled">true</bool>
+    <bool name="config_enableWifiDisplay">true</bool>

     <!-- show global actions menu when long press power button -->
     <integer name="config_longPressOnPowerBehavior">1</integer>

5.修改默认网络

“imx8q/mek_8q/mek_8q.mk”中添加下面的内容可以修改“default_network”

PRODUCT_PROPERTY_OVERRIDES += ro.telephony.default_network=33,33,33,33

注意:后面的值在“frameworks/base/telephony/java/com/android/internal/telephony/RILConstants.java”中有定义,如下:

    /* NETWORK_MODE_* See ril.h RIL_REQUEST_SET_PREFERRED_NETWORK_TYPE */
    /** GSM, WCDMA (WCDMA preferred) */
    int NETWORK_MODE_WCDMA_PREF = 0;

    /** GSM only */
    int NETWORK_MODE_GSM_ONLY = 1;

    /** WCDMA only */
    int NETWORK_MODE_WCDMA_ONLY = 2;

    /** GSM, WCDMA (auto mode, according to PRL) */
    int NETWORK_MODE_GSM_UMTS = 3;

    /** CDMA and EvDo (auto mode, according to PRL) */
    int NETWORK_MODE_CDMA = 4;

    /** CDMA only */
    int NETWORK_MODE_CDMA_NO_EVDO = 5;

    /** EvDo only */
    int NETWORK_MODE_EVDO_NO_CDMA = 6;
......
     /** NR 5G, LTE, TD-SCDMA, CDMA, EVDO, GSM and WCDMA */
    int NETWORK_MODE_NR_LTE_TDSCDMA_CDMA_EVDO_GSM_WCDMA = 33;

    @UnsupportedAppUsage
    int PREFERRED_NETWORK_MODE = Optional.of(TelephonyProperties.default_network())
            .filter(list -> !list.isEmpty())
            .map(list -> list.get(0))
            .orElse(NETWORK_MODE_WCDMA_PREF);   
            
# 这里TelephonyProperties.default_network()对应的"system/libsysprop/srcs/android/sysprop/TelephonyProperties.sysprop"中的
prop {
    api_name: "default_network"
    type: IntegerList
    scope: Internal
    access: Readonly
    prop_name: "ro.telephony.default_network"
}

从最后一段代码可以看到,当ro.telephony.default_network没有指定时,系统默认用的是“NETWORK_MODE_WCDMA_PREF”。所以通过指定ro.telephony.default_network的值可以修改默认网络。

三、遇到问题的解决

1.编译过程copy出错。

在这里插入图片描述
这种错误的原因是系统已经编译过需要的库了,如果需要用自己的去替换原来的,或者将原来的移动位置,都会上报这个错误。
解决办法:
在BoardConfigCommon.mk中添加下面内容:

BUILD_BROKEN_ELF_PREBUILT_PRODUCT_COPY_FILES := true    #这个不是为了解决上面的问题,但是建议一起添加
BUILD_BROKEN_DUP_RULES := true

2.编译出错log如下:

在这里插入图片描述
这个错误是因为编译过程中会对"device/nxp/imx8q/mek_8q/manifest.xml"和"hardware/interfaces/compatibility_matrices/compatibility_matrix.7.xml"进行匹配,如果匹配失败会报错。另外"hardware/interfaces/compatibility_matrices"这个下面有多个xml文件,具体和哪个匹配取决于"manifest.xml"第一行中"target-level"对应的值。
解决办法:
device/nxp/imx8q/mek_8q/manifest.xml添加如下代码:
在这里插入图片描述
hardware/interfaces/compatibility_matrices/compatibility_matrix.7.xml中做如下修改:
在这里插入图片描述

3.ril运行提示找不到android.hardware.secure_element@1.0.so

在这里插入图片描述解决办法:
先去系统的"/system/lib64"和"/vendor/lib64"目录下找一些看有没有响应的库,如果没有,在"mek_8q.mk"中添加如下内容:

PRODUCT_PACKAGES += \
    libhidlbase.vendor \
    libhwbinder.vendor \
    android.hardware.secure_element@1.0 \
    android.hardware.secure_element@1.1 \
    android.hardware.secure_element@1.2 \
    android.hardware.radio.config@1.0 \
    android.hardware.radio.config@1.1 \
    android.hardware.radio.config@1.2 \
    android.hardware.radio@1.5-radio-service \
    android.hardware.radio.config@1.2-service \
    android.hardware.radio.config@1.0-service \
    android.hardware.radio@1.5.vendor \
    android.hardware.radio@1.3.vendor \
    android.hardware.radio@1.4.vendor \
    android.hardware.radio.deprecated@1.0.vendor \
    android.hardware.radio.config@1.0.vendor \
    android.hardware.radio.config@1.1.vendor \
    android.hardware.radio.config@1.2.vendor \
    android.hardware.radio@1.5-radio-service \
    android.hardware.radio.config@1.2-service \
    android.hardware.radio.config@1.0-service \
    android.hardware.radio.config@1.0.vendor \
    android.hardware.radio.config@1.2.vendor \
    android.hardware.radio@1.5.vendor \
    android.hardware.radio@1.5.vendor  \
    android.hardware.radio@1.6.vendor

如果还提示错误,参照下面的修改"mek_8q.mk"将"android.hardware.secure_element@1.*“复制到”/vendor/lib64"目录下。

PRODUCT_COPY_FILES += \
    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj_arm/SHARED_LIBRARIES/android.hardware.secure_element@1.0_intermediates/android.hardware.secure_element@1.0.so:$(TARGET_COPY_OUT_VENDOR)/lib/android.hardware.secure_element@1.0.so \
    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj_arm/SHARED_LIBRARIES/android.hardware.secure_element@1.1_intermediates/android.hardware.secure_element@1.1.so:$(TARGET_COPY_OUT_VENDOR)/lib/android.hardware.secure_element@1.1.so \
    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj_arm/SHARED_LIBRARIES/android.hardware.secure_element@1.2_intermediates/android.hardware.secure_element@1.2.so:$(TARGET_COPY_OUT_VENDOR)/lib/android.hardware.secure_element@1.2.so \
    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj/SHARED_LIBRARIES/android.hardware.secure_element@1.0_intermediates/android.hardware.secure_element@1.0.so:$(TARGET_COPY_OUT_VENDOR)/lib64/android.hardware.secure_element@1.0.so \
    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj/SHARED_LIBRARIES/android.hardware.secure_element@1.1_intermediates/android.hardware.secure_element@1.1.so:$(TARGET_COPY_OUT_VENDOR)/lib64/android.hardware.secure_element@1.1.so \
    $(OUT_DIR)/target/product/$(firstword $(PRODUCT_DEVICE))/obj/SHARED_LIBRARIES/android.hardware.secure_element@1.2_intermediates/android.hardware.secure_element@1.2.so:$(TARGET_COPY_OUT_VENDOR)/lib64/android.hardware.secure_element@1.2.so

4.系统提示找不到android.hardware.radio@1.5::IRadio/slot1。

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解决办法:
利用移远提供的’libril.so"替换系统原有的’libril.so"。修改"mek_8q.mk"中添加如下内容:

PRODUCT_COPY_FILES += \
    $(CONFIG_REPO_PATH)/common/lib/lib32/libril.so:$(TARGET_COPY_OUT_VENDOR)/lib/libril.so \
    $(CONFIG_REPO_PATH)/common/lib/lib64/libril.so:$(TARGET_COPY_OUT_VENDOR)/lib64/libril.so 

另外如果libreference-ril.so和libril.so不匹配的时候好像也报这个错误。网上有通过修改init.cpp、ServiceManager.cpp、ServiceManagement.cpp来解决这个错误,但看了下都是对输出log的操作。调试过程中我遇到这个错误的时候系统的4G图标不能显示,"logcat -b radio"查看log,发现ril库已经跑起来了,有AT命令的输出结果,但是就是无法上网。ifconfig查看相应的网卡也没有自动获取到IP。

5.有显示信号图标,但是无法上网,也不显示3G、4G的图标。手动添加APN后恢复正常。

解决办法:
"logcat -v time | grep apns"看一下"apns-conf.xml"放的位置是不是正常。
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如果位置错误的话修改"imx8q/mek_8q/mek_8q.mk"中"apns-conf.xml"的copy位置。

PRODUCT_COPY_FILES += \

    $(CONFIG_REPO_PATH)/common/config/apns-conf.xml:system/etc/apns-conf.xml \

另外就是查看SIM卡对应的APN是否被正常识别。下图是一个46008未被识别的错误log。
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其中46008在“apns-config.xml”对应的字段是mcc=“460” mnc=“07”。然后参考xml中其它的配置,将新的APN添加到“apns-config.xml”中。这里可以通过“adb push”推入系统中进行验证,但是需要删除系统的“telephony.db”,重启系统,才能生效。
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文章来源:https://blog.csdn.net/xuesong10210/article/details/135731049
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