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RK3568移远4G模块EC20_qlril

作者：不正经 | 2024-03-20 17:05:22

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qlril

1 DTS

本dts的内容不是必须的，也可以自己手动拉gpio去操控。

  1.   rk_modem: rk-modem {
  2.     compatible="4g-modem-platdata";
  3.     4G,vbat-gpio = <&gpio0 RK_PD5 GPIO_ACTIVE_HIGH>;
  4.     //4G,power-gpio = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>;
  5.     4G,reset-gpio = <&gpio2 RK_PD7 GPIO_ACTIVE_HIGH>;
  6.     status = "okay";
  7.   };
  8.

对应的驱动为：kernel/drivers/net/lte/lte_rm310.c

2 内核驱动

新一点的内核（包含3568的4.19）都是已经包含了移远的option驱动的，无需再添加vid和pid。但是零包机制、电源管理以及第四个用于usbnet的口相关的代码还是有必要加上去的。即：

  1. kernel/drivers/usb/serial/option.c
  2.  
  3. static struct usb_serial_driver option_1port_device = {
  4.   .driver = {
  5.     .owner =  THIS_MODULE,
  6.     .name =    "option1",
  7.   },
  8.   .description       = "GSM modem (1-port)",
  9.   .id_table          = option_ids,
  10.   .num_ports         = 1,
  11.   .probe             = option_probe,
  12.   .open              = usb_wwan_open,
  13.   .close             = usb_wwan_close,
  14.   .dtr_rts     = usb_wwan_dtr_rts,
  15.   .write             = usb_wwan_write,
  16.   .write_room        = usb_wwan_write_room,
  17.   .chars_in_buffer   = usb_wwan_chars_in_buffer,
  18.   .tiocmget          = usb_wwan_tiocmget,
  19.   .tiocmset          = usb_wwan_tiocmset,
  20.   .ioctl             = usb_wwan_ioctl,
  21.   .attach            = option_attach,
  22.   .release           = option_release,
  23.   .port_probe        = usb_wwan_port_probe,
  24.   .port_remove     = usb_wwan_port_remove,
  25.   .read_int_callback = option_instat_callback,
  26. #ifdef CONFIG_PM
  27.   .suspend           = usb_wwan_suspend,
  28.   .resume            = usb_wwan_resume,
  29. +#if 1 //Added by Quectel
  30. +  .reset_resume = usb_wwan_resume,
  31. +#endif
  32. #endif
  33. };
  34.  
  35. static int option_probe(struct usb_serial *serial,
  36.       const struct usb_device_id *id)
  37. {
  38.   struct usb_interface_descriptor *iface_desc =
  39.         &serial->interface->cur_altsetting->desc;
  40.   unsigned long device_flags = id->driver_info;
  41.  
  42.   /* Never bind to the CD-Rom emulation interface  */
  43.   if (iface_desc->bInterfaceClass == USB_CLASS_MASS_STORAGE)
  44.     return -ENODEV;
  45.  
  46.   /*
  47.    * Don't bind reserved interfaces (like network ones) which often have
  48.    * the same class/subclass/protocol as the serial interfaces.  Look at
  49.    * the Windows driver .INF files for reserved interface numbers.
  50.    */
  51.   if (iface_is_reserved(device_flags, iface_desc->bInterfaceNumber))
  52.     return -ENODEV;
  53.  
  54.   /*
  55.    * Allow matching on bNumEndpoints for devices whose interface numbers
  56.    * can change (e.g. Quectel EP06).
  57.    */
  58.   if (device_flags & NUMEP2 && iface_desc->bNumEndpoints != 2)
  59.     return -ENODEV;
  60.  
  61. +#if 1 //Added by Quectel
  62. +  if (serial->dev->descriptor.idVendor == cpu_to_le16(0x2C7C)) {
  63. +    __u16 idProduct = le16_to_cpu(serial->dev->descriptor.idProduct);
  64. +    struct usb_interface_descriptor *intf = &serial->interface->cur_altsetting->desc;
  65. +    if (intf->bInterfaceClass != 0xFF || intf->bInterfaceSubClass == 0x42) {
  66. +      //ECM, RNDIS, NCM, MBIM, ACM, UAC, ADB
  67. +      return -ENODEV;
  68. +    }
  69. +    if ((idProduct&0xF000) == 0x0000) {
  70. +      //MDM interface 4 is QMI
  71. +      if (intf->bInterfaceNumber == 4 && intf->bNumEndpoints == 3
  72. +      && intf->bInterfaceSubClass == 0xFF && intf->bInterfaceProtocol
  73. +      == 0xFF)
  74. +        return -ENODEV;
  75. +    }
  76. +  }
  77. +#endif
  78.  
  79.   /* Store the device flags so we can use them during attach. */
  80.   usb_set_serial_data(serial, (void *)device_flags);
  81.  
  82.   return 0;
  83. }
  84.  
  1. rk3568/kernel/drivers/usb/serial/usb_wwan.c
  2.  
  3. static struct urb *usb_wwan_setup_urb(struct usb_serial_port *port,
  4.               int endpoint,
  5.               int dir, void *ctx, char *buf, int len,
  6.               void (*callback) (struct urb *))
  7. {
  8.   struct usb_serial *serial = port->serial;
  9.   struct usb_wwan_intf_private *intfdata = usb_get_serial_data(serial);
  10.   struct urb *urb;
  11.   struct usb_device_descriptor *desc = &serial->dev->descriptor;
  12.  
  13.   urb = usb_alloc_urb(0, GFP_KERNEL);  /* No ISO */
  14.   if (!urb)
  15.     return NULL;
  16.  
  17.   usb_fill_bulk_urb(urb, serial->dev,
  18.         usb_sndbulkpipe(serial->dev, endpoint) | dir,
  19.         buf, len, callback, ctx);
  20.  
  21.   if (intfdata->use_zlp && dir == USB_DIR_OUT)
  22.     urb->transfer_flags |= URB_ZERO_PACKET;
  23.  
  24.   if (dir == USB_DIR_OUT) {
  25.     if ((desc->idVendor == cpu_to_le16(0x1286) &&
  26.          desc->idProduct == cpu_to_le16(0x4e3c)))
  27.       urb->transfer_flags |= URB_ZERO_PACKET;
  28.   }
  29. +#if 1 //Added by Quectel for zero packet
  30. +  if (dir == USB_DIR_OUT) {
  31. +    struct usb_device_descriptor *desc = &serial->dev->descriptor;
  32. +    if (desc->idVendor == cpu_to_le16(0x2C7C))
  33. +      urb->transfer_flags |= URB_ZERO_PACKET;
  34. +  }
  35. +#endif
  36.   return urb;
  37. }

添加好虚拟出的各个串口后，要加入usbnet的驱动，可以使用GobiNet或者wwan。Gobinet是以前Linux内核没有添加相关驱动时的产物。目前使用wwan比较多。找到移远提供的qmai_wwan_q.c放入kernel/drivers/net/usb文件夹下，并修改Makefile：

  1. +obj-$(CONFIG_USB_NET_QMI_WWAN)  += qmi_wwan_q.o #最好放在qmi_wwan.o之前
  2. obj-$(CONFIG_USB_NET_QMI_WWAN)  += qmi_wwan.o
  3.

此驱动会生成wwan0（用ifconfig -a可以看到），以及/dev/cdc-wdm0设备。在Android中，需要修改部分代码才可以添加此设备：

  1. rk3568/system/core/init/devices.cpp
  2.  
  3. void DeviceHandler::HandleUevent(const Uevent& uevent) {
  4.     ...
  5.     if (uevent.subsystem == "block") {
  6.         block = true;
  7.         devpath = "/dev/block/" + Basename(uevent.path);
  8.  
  9.         if (StartsWith(uevent.path, "/devices")) {
  10.             links = GetBlockDeviceSymlinks(uevent);
  11.         }
  12.     } else if (const auto subsystem =
  13.                    std::find(subsystems_.cbegin(), subsystems_.cend(), uevent.subsystem);
  14.                subsystem != subsystems_.cend()) {
  15.         devpath = subsystem->ParseDevPath(uevent);
  16.     } else if (uevent.subsystem == "usb") {
  17.         if (!uevent.device_name.empty()) {
  18.             devpath = "/dev/" + uevent.device_name;
  19.         } else {
  20.             // This imitates the file system that would be created
  21.             // if we were using devfs instead.
  22.             // Minors are broken up into groups of 128, starting at "001"
  23.             int bus_id = uevent.minor / 128 + 1;
  24.             int device_id = uevent.minor % 128 + 1;
  25.             devpath = StringPrintf("/dev/bus/usb/%03d/%03d", bus_id, device_id);
  26.         }
  27. +#if 1 // add by quectel for mknod /dev/cdc-wdm0
  28. +    } else if(uevent.subsystem == "usbmisc" && !uevent.device_name.empty()){
  29. +        devpath = "/dev/" + uevent.device_name;
  30. +#endif
  31.     } else if (StartsWith(uevent.subsystem, "usb")) {
  32.         // ignore other USB events
  33.         return;
  34.     } else {
  35.         devpath = "/dev/" + Basename(uevent.path);
  36.     }
  37.   ...
  38. }
  39.  
  40.

至于ECM等驱动也都是usbnet使用的，可以选择不添加。

3 Android

3.1 复制文件

首先要找到FAE要到适合自己android版本的对应的资料，其中包括文档、ril库等。

将libreference-ril.so拷贝并改名为：vendor/rockchip/common/phone/lib/libreference-ril-quel.so

将ql-ril.conf拷贝至：vendor/rockchip/common/phone/lib/ql-ril.conf

3.2 设置资源文件将复制的目标路径

  1. rk3568/vendor/rockchip/common/phone/phone.mk
  2.  
  3. #########################################################
  4. #   3G Dongle SUPPORT
  5. #########################################################
  6. #PRODUCT_COPY_FILES += \
  7.     $(CUR_PATH)/phone/etc/ppp/ip-down:system/etc/ppp/ip-down \
  8.     $(CUR_PATH)/phone/etc/ppp/ip-up:system/etc/ppp/ip-up \
  9.     $(CUR_PATH)/phone/etc/ppp/call-pppd:system/etc/ppp/call-pppd \
  10.     $(CUR_PATH)/phone/etc/operator_table:system/etc/operator_table
  11. PRODUCT_COPY_FILES += \
  12.      $(CUR_PATH)/phone/lib/libreference-ril-quel.so:vendor/lib64/libreference-ril-quel.so \
  13.       $(CUR_PATH)/phone/lib/ql-ril.conf:system/etc/ql-ril.conf
  14.

3.3 SELINUX和rild服务

selinux部分需要注意的是通常文件最后需要有一个空行作为结尾。

  1. device/rockchip/common/ueventd.rockchip.rc
  2.  
  3. +/dev/ttyACM*              0660   radio    radio
  4. +/dev/cdc-wdm*              0660   radio    radio
  5. +/dev/qcqmi*              0660   radio    radio
  6. +/dev/cdc-acm*              0660   radio    radio
  7. +/dev/mhi_DUN              0660   radio    radio
  8. +/dev/mhi_DIAG              0660   radio    radio
  9. +/dev/mhi_BHI              0660   radio    radio
  10. +/dev/mhi_LOOPBACK              0660   radio    radio
  11. +/dev/mhi_QMI0              0660   radio    radio
  12. +
  1. device/rockchip/common/sepolicy/private/file_contexts
  2.  
  3. +/dev/ttyUSB[0-9]    u:object_r:radio_device:s0
  4. +/dev/ttyACM[0-9]    u:object_r:radio_device:s0
  5. +/dev/cdc-wdm[0-9]   u:object_r:radio_device:s0
  6. +/dev/qcqmi[0-9]     u:object_r:radio_device:s0
  7. +/vendor/bin/hw/rild     u:object_r:rild_exec:s0
  8. +/dev/socket/rildOemHook u:object_r:rild_socket:s0
  9. +
  10. +#pcie
  11. +/dev/mhi_DUN    u:object_r:radio_device:s0
  12. +/dev/mhi_DIAG   u:object_r:radio_device:s0
  13. +/dev/mhi_BHI    u:object_r:radio_device:s0
  14. +/dev/mhi_LOOPBACK   u:object_r:radio_device:s0
  15. +/dev/mhi_QMI0       u:object_r:radio_device:s0
  16. +
  1. system/sepolicy/vendor/rild.te
  2.  
  3. +allow rild self:packet_socket { create bind write read };
  4. +

对应rild可以修改为：

  1. rk3568/hardware/ril/rild/rild.rc
  2.  
  3. -#service vendor.ril-daemon /vendor/bin/hw/rild
  4. -#    class main
  5. -#    user radio
  6. -#    group radio cache inet misc audio log readproc wakelock
  7. -#    capabilities BLOCK_SUSPEND NET_ADMIN NET_RAW
  8.  
  9. +service ril-daemon /vendor/bin/hw/rild -l /vendor/lib64/libreference-ril-quel.so
  10. +    class main
  11. +    user radio
  12. +    group radio cache inet misc audio sdcard_rw log
  13. +    capabilities BLOCK_SUSPEND NET_ADMIN NET_RAW
  14.

3.4 修改BoardConfig.mk

SDK默认4G和dongle是关闭的，需要开启：

  1. device/rockchip/common/BoardConfig.mk
  2.  
  3. -BOARD_HAS_RK_4G_MODEM ?= false
  4. +BOARD_HAS_RK_4G_MODEM ?= true
  5. -BOARD_HAVE_DONGLE ?= false
  6. +BOARD_HAVE_DONGLE ?= true
  7.  
  1. external/usb_modeswitch/usb_dongle/Android.mk
  2.  
  3. -#common_local_tidy_flags := -warnings-as-errors=clang-analyzer-security*,cert-*
  4.

3.5 修改device.mk

  1. rk3568/device/rockchip/rk356x/device.mk
  2.  
  3. PRODUCT_PROPERTY_OVERRIDES += \
  4.                 ro.ril.ecclist=112,911 \
  5.                 ro.opengles.version=196610 \
  6.                 wifi.interface=wlan0 \
  7. +                rild.libpath=/vendor/lib64/libreference-ril-quel.so    \
  8. +                rild.libargs=-d /dev/ttyUSB2    \
  1. rk3568/device/rockchip/common/device.mk
  2.  
  3. ifeq ($(strip $(BOARD_HAS_RK_4G_MODEM)),true)
  4. PRODUCT_PACKAGES += \
  5.     CarrierDefaultApp \
  6.     CarrierConfig \
  7.     rild \
  8. -      librk-ril\
  9. +    libreference-ril-quel   \
  10.     dhcpcd
  11.  
  12. PRODUCT_COPY_FILES += vendor/rockchip/common/phone/etc/apns-full-conf.xml:$(TARGET_COPY_OUT_PRODUCT)/etc/apns-conf.xml
  13.  
  14. PRODUCT_PACKAGES += \
  15.     android.hardware.radio@1.2-radio-service \
  16.     android.hardware.radio.config@1.0-service
  17.  
  18. PRODUCT_PROPERTY_OVERRIDES += \
  19.     ro.boot.noril=false \
  20.     ro.telephony.default_network=9
  21.  
  22. ifeq ($(strip $(TARGET_ARCH)), arm64)
  23. PRODUCT_PROPERTY_OVERRIDES += \
  24. -     vendor.rild.libpath=/vendor/lib64/librk-ril.so
  25. +    vendor.rild.libpath=/vendor/lib64/libreference-ril-quel.so
  26.

3.6 修改manifest.xml

  1. device/rockchip/common/4g_modem/manifest.xml
  2.  
  3.     <hal format="hidl">
  4.         <name>android.hardware.radio.deprecated</name>
  5.         <transport>hwbinder</transport>
  6.         <version>1.0</version>
  7.         <interface>
  8.             <name>IOemHook</name>
  9.             <instance>slot1</instance>
  10.         </interface>
  11.     </hal>
  12.     <hal format="hidl">
  13. -          <name>android.hardware.radio.config</name>
  14. +        <name>android.hardware.radio</name>
  15. +        <transport>hwbinder</transport>
  16. +        <version>1.0</version>
  17. +        <interface>
  18. -            <name>IRadioConfig</name>
  19. +            <name>IRadio</name>
  20. -            <instance>default</instance>
  21. +            <instance>slot1</instance>
  22. +        </interface>
  23.     </hal>
  24. </manifest>
  25.

3.7 启动脚本去掉ril-daemon

  1. device/rockchip/common/init.rk30board.rc
  2.  
  3. # for telephony function
  4. -#on property:ro.boot.noril=true
  5. -#    setprop ro.radio.noril true
  6. -#   stop ril-daemon
  7.

3.8使能电话进程

3.8.1 设置→网络和互联网里没有“移动网络”选项

  1. rk3568/device/rockchip/rk356x/overlay/frameworks/base/core/res/res/values/config.xml
  2.  
  3.   <string-array translatable="false" name="networkAttributes">
  4.       <item>"wifi,1,1,2,-1,true"</item>
  5. +      <item>"mobile,0,0,0,-1,true"</item>
  6. +      <item>"mobile_mms,2,0,2,60000,false"</item>
  7. +      <item>"mobile_supl,3,0,2,60000,true"</item>
  8. +      <item>"mobile_dun,4,0,2,60000,true"</item>
  9. +      <item>"mobile_hipri,5,0,3,60000,true"</item>
  10. +      <item>"mobile_fota,10,0,2,60000,true"</item>
  11. +      <item>"mobile_ims,11,0,2,60000,true"</item>
  12. +      <item>"mobile_cbs,12,0,2,60000,true"</item>
  13.       <item>"bluetooth,7,7,0,-1,true"</item>
  14.       <item>"ethernet,9,9,9,-1,true"</item>
  15.   </string-array>

3.8.2 移动网络里没有APN选项

  1. rk3568/device/rockchip/common/overlay/frameworks/base/core/res/res/values/config.xml
  2.  
  3. -<bool name="config_voice_capable">false</bool>
  4. +<bool name="config_voice_capable">true</bool>
  5.

3.8.3 移动信号图无信号

  1. rk3568/vendor/rockchip/common/phone/lib/ql-ril.conf
  2. # 打开如下选项
  3. LTE_Is_Report_SignalStrength=1

4 调试方式

4.1 内核

  1. ls /dev/ | grep ttyUSB   // 可以看到ttyUSB0-3说明成功注册上option驱动，其中/dev/ttyUSB2为AT指令口，可以收发AT指令。
  2.  
  3. ifconfig -a  //如果可以看到wwan0则成功注册了 qmi_wwan驱动
  1. # 如果正在运行rild可能导致抢AT指令资源，可以通过stop ril-daemon来先停止此服务
  2.  
  3. # AT指令简单的测试
  4. > microcom /dev/ttyUSB2
  5. ate1
  6. AT
  7. OK  //看到OK说明AT指令收发成功
  8.

4.2 logcat

  1. logcat -b radio  // ril log
  2. logcat -c -b radio // 清除之前的log
  3.

5 参考文档

移远官方：

Quectel_UMTS_LTE_5G_Linux_USB_Driver_User_Guide_V3.0

Android RILDriver User Guide

RK官方：

Rockchip_RM310_4G模块配置说明

Rockchip_Introduction_3G_Dongle_Configuration_CN&EN

他人博客：

RK3568-ANDROID11-4G-EC20-(详细步骤)_旋风旋风的博客-CSDN博客

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