RK3588 Android13 RM500U-CN移植

1. Kernel修改

1.1 根据原理图配置引脚

参考lte_rm310配置

 Rockchip 4g modem device tree bindings
Required properties:
- compatible : "4g-modem-platdata"
Optional properties:
- 4G,vbat-gpio : 4g modem vbat gpio
- 4G,power-gpio : 4g modem power enable/disable gpio
- 4G,reset-gpio : 4g modem reset gpio
Example:
        4G-Modem {
                compatible="4g-modem-platdata";
                4G,vbat-gpio = ;
                4G,power-gpio = ;
                4G,reset-gpio = ;
        }
若走Pcie协议，还需要配置Pcie相关dts

1.2 添加RM500U-CN vid pid

--- a/kernel-5.10/drivers/usb/serial/option.c
+++ b/kernel-5.10/drivers/usb/serial/option.c
@@ -1183,6 +1183,7 @@ static const struct usb_device_id option_ids[] = {
        { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200S_CN, 0xff, 0, 0) },
        { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },
        { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500K, 0xff, 0x00, 0x00) },
+       { USB_DEVICE_AND_INTERFACE_INFO(0x2c7c, 0x0900, 0xff, 0x00, 0x00) },
        { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
        { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
@@ -2230,6 +2231,10 @@ static struct usb_serial_driver option_1port_device = {
        .suspend           = usb_wwan_suspend,
        .resume            = usb_wwan_resume,
 #endif
+#if 1 //Added by Quectel
+        .reset_resume = usb_wwan_resume,
+#endif
+
 };
--- a/kernel-5.10/drivers/usb/serial/usb_wwan.c
+++ b/kernel-5.10/drivers/usb/serial/usb_wwan.c
@@ -481,6 +481,14 @@ 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 1 //Added by Quectel for zero packet
+       if (dir == USB_DIR_OUT) {
+               struct usb_device_descriptor *desc = &serial->dev->descriptor;
+
+               if (desc->idVendor == cpu_to_le16(0x2C7C))
+                       urb->transfer_flags |= URB_ZERO_PACKET;
+       }
+#endif
        return urb;
 }

1.3 增加qmi_wwan_q驱动

移远提供的驱动：Quectel_Linux_Android_QMI_WWAN_Driver_V1.2.6.zip

--- a/kernel-5.10/drivers/net/usb/Makefile
+++ b/kernel-5.10/drivers/net/usb/Makefile
@@ -37,6 +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-$(CONFIG_USB_NET_QMI_WWAN)  += qmi_wwan_q.o
 obj-$(CONFIG_USB_NET_QMI_WWAN) += qmi_wwan.o
 obj-$(CONFIG_USB_NET_CDC_MBIM) += cdc_mbim.o
 obj-$(CONFIG_USB_NET_CH9200)   += ch9200.o

1.4 添加PCIe驱动

将驱动压缩包 Quectel_Linux&Android_SPRD_PCIE_Driver 解压至 Linux 源码 drivers

目录下，并在该目录下的 Makefile 文件中添加如下内容后直接编译即可。

若 PCIe 驱动被正确移植并编译成功，上位机设备的 dev 目录下会生成 spipe_nr0-14、stty_nr0-31、

snv_nr、slog_nr 和 sdiag_nr 等设备节点，同时生成 pciex（网卡名称，“x”的范围为 0~3）、sipa_dummy

等网卡。

2. Android修改

2.1 配置ril-daemon

--- a/hardware/ril/rild/rild.rc
+++ b/hardware/ril/rild/rild.rc
@@ -1,5 +1,5 @@
-service vendor.ril-daemon /vendor/bin/hw/rild
+service ril-daemon /vendor/bin/hw/rild -l /vendor/lib64/hw/libreference-ril-quectel.so
     class main
-    user radio
-    group radio cache inet misc audio log readproc wakelock
+    user root
+    group radio cache inet misc audio sdcard_rw log
     capabilities BLOCK_SUSPEND NET_ADMIN NET_RAW

2.2 配置IRadio

--- a/device/rockchip/common/4g_modem/manifest.xml
+++ b/device/rockchip/common/4g_modem/manifest.xml
@@ -4,6 +4,7 @@
         hwbinder
         @1.1::IRadio/slot1
         @1.1::IRadio/slot2
+        @1.5::IRadio/slot1
         @1.2::ISap/slot1
     
     
--- a/device/rockchip/common/BoardConfig.mk
+++ b/device/rockchip/common/BoardConfig.mk
@@ -297,7 +297,7 @@ BOARD_FORCE_UDISK_VISIBLE ?= true
 BOARD_DISABLE_SAFE_MODE ?= true
 #enable 3g dongle
-BOARD_HAVE_DONGLE ?= false
+BOARD_HAVE_DONGLE ?= true
 #for boot and shutdown animation ringing
 BOOT_SHUTDOWN_ANIMATION_RINGING ?= false
@@ -328,7 +328,7 @@ BOARD_BLUETOOTH_LE_SUPPORT ?= true
 BOARD_WIFI_SUPPORT ?= true
 #for rk 4g modem
-BOARD_HAS_RK_4G_MODEM ?= false
+BOARD_HAS_RK_4G_MODEM ?= true
 #for rk DLNA
 PRODUCT_HAVE_DLNA ?= false
--- a/device/rockchip/common/modules/4g_modem.mk
+++ b/device/rockchip/common/modules/4g_modem.mk
@@ -27,6 +27,15 @@ PRODUCT_PACKAGES += \
     android.hardware.radio@1.2-radio-service \
     android.hardware.radio.config@1.0-service
+PRODUCT_PACKAGES += \
+    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 \
+    libhwbinder.vendor

2.3 配置SELinux 权限

1.AT拨号权限
--- a/device/rockchip/common/rootdir/ueventd.rockchip.rc
+++ b/device/rockchip/common/rootdir/ueventd.rockchip.rc
@@ -79,6 +79,25 @@
 /dev/ttyUSB8              0660   radio         radio
 /dev/ttyUSB9              0660   radio         radio
+#quectel port
+/dev/ttyUSB*              0660   radio         radio
+/dev/ttyACM*              0660   radio         radio
+/dev/cdc-wdm*             0660   radio         radio
+/dev/qcqmi*               0660   radio         radio
+/dev/cdc-acm*             0660   radio         radio
+#PCIe
+/dev/mhi_DUN              0660   radio         radio
+/dev/mhi_DIAG             0660   radio         radio
+/dev/mhi_BHI              0660   radio         radio
+/dev/mhi_LOOPBACK         0660   radio         radio
+/dev/mhi_QMI0             0660   radio         radio
+
+/dev/stty_nr*             0660   radio         radio
+/dev/spipe_nr*            0660   radio         radio
+/dev/snv_nr               0660   radio         radio
+/dev/sdiag_nr             0660   radio         radio
+/dev/slog_nr              0660   radio         radio
2.  selinux 权限 
--- a/device/rockchip/common/sepolicy/private/file_contexts
+++ b/device/rockchip/common/sepolicy/private/file_contexts
@@ -3,3 +3,17 @@
 # All Rockchip configs
 /data/misc/cfg_rockchip(/.*)?                   u:object_r:rockchip_config_data_file:s0
+
+# quectel port
+/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
+#PCIe
+/dev/mhi_DUN u:object_r:radio_device:s0
+/dev/mhi_DIAG u:object_r:radio_device:s0
+/dev/mhi_BHI u:object_r:radio_device:s0
+/dev/mhi_LOOPBACK u:object_r:radio_device:s0
+/dev/mhi_QMI0 u:object_r:radio_device:s0
3.rild.te文件
--- a/system/sepolicy/vendor/rild.te
+++ b/system/sepolicy/vendor/rild.te
@@ -6,4 +6,7 @@ net_domain(rild)
 # type_transition must be private policy the domain_trans rules could stay
 # public, but conceptually should go with this
 type rild_exec, exec_type, vendor_file_type, file_type;
+
+allow rild self:packet_socket { create bind write read };
+
 init_daemon_domain(rild)
4. 修改usb节点名称
system/core
--- a/system/core/init/devices.cpp
+++ b/system/core/init/devices.cpp
@@ -550,6 +550,12 @@ void DeviceHandler::HandleUevent(const Uevent& uevent) {
             int device_id = uevent.minor % 128 + 1;
             devpath = StringPrintf("/dev/bus/usb/%03d/%03d", bus_id, device_id);
         }
+
+#if 1 //add by quectel for mknod /dev/cdc-wdm0
+        } else if (uevent.subsystem == "usbmisc" && !uevent.device_name.empty()) {
+            devpath = "/dev/" + uevent.device_name;
+#endif
+
     } else if (StartsWith(uevent.subsystem, "usb")) {
         // ignore other USB events
         return;

2.4 添加libreference.so

移远提供ril库: Quectel_Android_RIL_Driver_V3.5.66.zip

--- a/vendor/rockchip/common/phone/phone.mk
+++ b/vendor/rockchip/common/phone/phone.mk
@@ -17,6 +17,11 @@ PRODUCT_COPY_FILES += \
     $(CUR_PATH)/phone/lib/libril-dts4108c.so:system/lib/libril.so
 endif
+PRODUCT_COPY_FILES += \
+    $(CUR_PATH)/phone/lib/libreference-ril-quectel.so:vendor/lib64/hw/libreference-ril-quectel.so \
+    $(CUR_PATH)/phone/lib/libril.so:vendor/lib64/libril.so \
+    $(CUR_PATH)/phone/etc/ql-ril.conf:system/etc/ql-ril.conf
+

3. 编译及运行报错处理

3.1 android.hardware.radio@1.5::IRadio相关报错

相关报错：init: Control message: Could not find 'android.hardware.radio@1.5::IRadio/slot1' for ctl.interface_start from pid: 149 (/system/bin/hwservicemanager)
--- a/system/core/init/init.cpp
+++ b/system/core/init/init.cpp
@@ -435,9 +435,13 @@ static bool HandleControlMessage(std::string_view message, const std::string& na
         service = ServiceList::GetInstance().FindService(name);
     }
+    char tmp[256];
+    strcpy(tmp,name.c_str());
     if (service == nullptr) {
-        LOG(ERROR) 
+