[问答]

如何去实现YUGA-CLM920-AC3 4G模块的适配呢

问答对人有帮助，内容完整，我也想知道答案 0 如何去实现YUGA-CLM920-AC34G模块的适配呢？有哪些步骤？ 0
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答案对人有帮助，有参考价值 0 Platform: RK3288 OS: Android 5.1.1 Kernel: v3.10.0 需求：适配4G模块，本文以YUGA-CLM920-AC3为例 1、添加USB转虚拟串口设备把4G模块虚拟成ttyUSB0~ttyUSB5等几个虚拟串口。 1.1 确认模块的Vendor ID and Product ID 方法一：根据厂商提供的适配文档确认模块VID、PID 方法二：拔插4G模块，根据内核日志确认模块VID、PID 1.2 kernel驱动修改添加宏定义&添加blacklist diff --git a/drivers/u*/serial/option.c b/drivers/u/serial/option.c index f89de98..6f86d12 100755 --- a/drivers/u/serial/option.c +++ b/drivers/u/serial/option.c @@ -418,8 +418,14 @@ static void option_instat_callback(struct urb urb); #define YUGE_PRODUCT_CLM920_EC5 0x9020 #define YUGE_PRODUCT_CLM920_NC5_1 0x9025 #define YUGE_PRODUCT_CLM920_NC5_2 0x9625 +#define YUGA_VENDOR_AC3 0x1286 +#define YUGA_PRODUCT_AC3 0x4E3C + #define YUGA_PRODUCT_CLM920_NC5_GPS 0x9125 //end + + #define YUGA_VENDOR_ID 0x257A #define YUGA_PRODUCT_CEM600 0x1601 #define YUGA_PRODUCT_CEM610 0x1602 @@ -626,7 +632,9 @@ static const struct option_blacklist_info nodecom_nl650_blacklist = { .reserved = BIT(4) \| BIT(5), }; /end add/ - +static const struct option_blacklist_info YUGA_VENDOR_AC3_blacklist = { + .reserved = BIT(0) \| BIT(1), +}; static const struct option_blacklist_info YUGA_9X07_GPS_blacklist = { .reserved = BIT(0) \| BIT(1) \| BIT(5), @@ -1836,6 +1844,8 @@ static const struct u**_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&YUGA_9X07_blacklist }, { USB_DEVICE(CLM920_VENDOR_ID, YUGA_PRODUCT_CLM920_NC5_GPS), .driver_info = (kernel_ulong_t)&YUGA_9X07_GPS_blacklist }, + { USB_DEVICE(YUGA_VENDOR_AC3, YUGA_PRODUCT_AC3), + .driver_info = (kernel_ulong_t)&YUGA_VENDOR_AC3_blacklist }, 1.3 验证是否修改成功编译并烧录完成后，插入4G模块通过查询命令：ls /dev/ttyU，应有 ttyUSB0、ttyUSB1、ttyUSB2 三个端口，如下图：或者加载模块时的内核日志，如下图： 2.导入rilLib文件模块厂商会提供一堆rilLib文件，根据主板CPU（32位还是64位），以及系统版本选对应的rilLib文件； 2.1 将rilLib文件放置到源码并加到mk文件进行编译路径：/vendor/rockchip/common/phone/lib 为了方便维护，将rilLib文件名改为libreference-ril-yuga-ac3.so 路径：/vendor/rockchip/common/phone/phone.mk diff --git a/phone/phone.mk b/phone/phone.mk index 3051b60..b43a50e 100755 --- a/phone/phone.mk +++ b/phone/phone.mk @@ -37,6 +37,7 @@ PRODUCT_COPY_FILES += $(CUR_PATH)/phone/lib/libreference-ril-me3630.so:system/lib/libreference-ril-me3630.so $(CUR_PATH)/phone/lib/libsoftwinner-ril-yuga-all2.so:system/lib/libsoftwinner-ril-yuga-all2.so $(CUR_PATH)/phone/lib/libreference-ril-nodecom-5.1.so:system/lib/libreference-ril-nodecom-5.1.so + $(CUR_PATH)/phone/lib/libreference-ril-yuga-ac3.so:system/lib/libreference-ril-yuga-ac3.so $(CUR_PATH)/phone/lib/libreference-ril-U9507E.so:system/lib/libreference-ril-U9507E.so 以上步骤没有问题编译之后将在out/target/product/rk3288/system/lib/生成该rilLib文件 2.2 修改rild.c以实现根据不同的VID、PID开机读取指定的rilLib。路径：/hardware/ril/rild/rild.c diff --git a/rild/rild.c b/rild/rild.c index 5774a04..248236c 100644 --- a/rild/rild.c +++ b/rild/rild.c @@ -336,6 +336,8 @@ done: #define YUGA_VENDOR_ID_CM920 "05c6" #define YUGA_TB5_PRODUCT_ID "9025" +#define YUGA_VENDOR_ID_AC3 "1286" +#define YUGA_AC3_PRODUCT_ID "4e3c" #define ME3630_VENDOR_ID "19d2" #define ME3630_PRODUCT_ID "1476" @@ -384,7 +386,7 @@ int checkVendor(char* path) ALOGD("tempPath = %s, idVendor = %s", tempPath, idVendor); if((strcmp(idVendor, YUGA_VENDOR_ID) == 0) - \|\| (strcmp(idVendor, YUGA_VENDOR_ID_CM920) == 0)){ + \|\| (strcmp(idVendor, YUGA_VENDOR_ID_CM920) == 0) \|\| (strcmp(idVendor, YUGA_VENDOR_ID_AC3) == 0)){ return VENDOR_YUGA; }else if(strcmp(idVendor, LONGSHAN_VENDOR_ID) == 0){ return VENDOR_LONGSHAN; @@ -603,6 +605,8 @@ OpenLib: flag = HWM600; }if((NULL != idProduct) && (strcmp(idProduct,YUGA_HEM600_PRODUCT_ID) == 0)){ rilLibPath = "/system/lib/libreference-ril-yuga-hem600.so"; + } if ((NULL != idProduct) && (strcmp(idProduct, YUGA_AC3_PRODUCT_ID) == 0)) { + rilLibPath = "/system/lib/libreference-ril-yuga-ac3.so"; }else{ rilLibPath = "/system/lib/libsoftwinner-ril-yuga-all2.so"; } (END) 原理 C语言strcmp库函数： int strcmp(const char str1, const char str2) C 库函数 int strcmp(const char str1, const char str2) 把 str1 所指向的字符串和 str2 所指向的字符串进行比较。该函数返回值如下：如果返回值小于 0，则表示 str1 小于 str2。如果返回值大于 0，则表示 str1 大于 str2。如果返回值等于 0，则表示 str1 等于 str2。报错 dlopen failed: dlopen failed: empty/missing DT_HASH in "libreference-ril-Longsung-M5700.so" (built with --hash-style=gnu?) 咨询模块厂商，打开rilLib失败，需要模块厂商这边修改rilLib；或者提供与当前系统（android5.1/7.1、32位/64位）兼容的rilLib；踩过的坑 blacklist不是必须要添加，若适配文档还有明确要求则不需要添加 diff --git a/drivers/u*/serial/option.c b/drivers/u/serial/option.c index 6f86d12..3bc3f9d 100755 --- a/drivers/u/serial/option.c +++ b/drivers/u/serial/option.c @@ -425,6 +425,10 @@ static void option_instat_callback(struct urb urb); #define YUGA_PRODUCT_CLM920_NC5_GPS 0x9125 //end +// add for M5700 +#define Longsung_VENDOR_M5700 0x1782 +#define Longsung_PRODUCT_M5700 0x4d10 +// end #define YUGA_VENDOR_ID 0x257A #define YUGA_PRODUCT_CEM600 0x1601 @@ -480,6 +484,8 @@ static void option_instat_callback(struct urb urb); #define YUGA_PRODUCT_CLU528 0x360D #define YUGA_PRODUCT_CLU526 0x360F + + / Viettel products / #define VIETTEL_VENDOR_ID 0x2262 #define VIETTEL_PRODUCT_VT1000 0x0002 @@ -645,6 +651,7 @@ static const struct option_blacklist_info YUGA_9X07_blacklist = { }; // add end + static const struct u_device_id option_ids[] = { //add by ZHQ 2017-11-23 for Quectel EC20 //{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_ID) }, @@ -1846,6 +1853,7 @@ static const struct u_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&YUGA_9X07_GPS_blacklist }, { USB_DEVICE(YUGA_VENDOR_AC3, YUGA_PRODUCT_AC3), .driver_info = (kernel_ulong_t)&YUGA_VENDOR_AC3_blacklist }, + { USB_DEVICE(Longsung_VENDOR_M5700, Longsung_PRODUCT_M5700)}, { USB_DEVICE(CLM920_VENDOR_ID, YUGE_PRODUCT_CLM920_EC5) }, { USB_DEVICE(CLM920_VENDOR_ID, YUGE_PRODUCT_CLM920_NC5_2) }, / add end */

2022-3-3 13:54:47 评论举报李辛华