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RK3399硬件替换芯片rtl8822cs点pown on无反应是为什么

1898 芯片

问答对人有帮助，内容完整，我也想知道答案 0 RK3399硬件替换芯片rtl8822cs点pown on无反应是为什么？怎样去处理这种情况？ 0
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答案对人有帮助，有参考价值 0 Platform: ROCKCHIP Chip: RK3399 OS: Android7.1.2 Kernel: 4.4.126 背景硬件替换芯片rtl8822cs；未改代码情况下，WIFI:点pown on立即跳到off bt:点on 无反应，串口打印 [ 875.649281] ret = 0 [ 875.704811] [BT_RFKILL]: bt shut off power [ 875.726554] [BT_RFKILL]: rfkill_rk_set_power: set bt wake_host high! [ 875.771901] [BT_RFKILL]: ENABLE UART_RTS [ 875.875559] [BT_RFKILL]: DISABLE UART_RTS [ 875.875683] [BT_RFKILL]: bt turn on power [ 875.875708] [BT_RFKILL]: Request irq for bt wakeup host [ 875.875748] [BT_RFKILL]: ** disable irq 代码改动 1.修改WIFI配置的dtsi： wireless-wlan { compatible = "wlan-platdata"; rockchip,grf = <&grf>; wifi_chip_type = "rtl8822cs"; sdio_vref = <1800>; WIFI,host_wake_irq = <&gpio0 3 GPIO_ACTIVE_HIGH>; /* GPIO0_a3 / status = "okay"; }; 2.2.添加驱动将供应商提供的驱动放在目录：obj-$(CONFIG_RTL8822CS) += rtl8822cs/ 修改kconfig： source "drivers/net/wireless/rockchip_wlan/rtl8822cs/Kconfig" 修改当前目录下makefile: CONFIG_PLATFORM_I386_PC=n CONFIG_PLATFORM_ARM_RK3188=y make ARCH=arm64 menuconfig 添加勾选 Device Drivers ---> Network device support ---> Wireless LAN ---> Rockchip Wireless LAN support ---> Realtek 8822C SDIO WiFi 3.添加芯片类型枚举： kernel/net/rfkill/rfkill-wlan.c 在int get_wifi_chip_type(void)添加 } else if (strcmp(wifi_chip_type_string, "rtl8822cs") == 0) { type = WIFI_RTL8822CS; kernel/include/linux/rfkill-wlan.h 添加芯片枚举： enum { WIFI_RK901, WIFI_RK903, WIFI_AP6181, WIFI_AP6210, WIFI_AP6XXX_SERIES, WIFI_RTL8188EU, WIFI_RTL8192DU, WIFI_RTL8723AS, WIFI_RTL8723BS, WIFI_RTL8822CS, WIFI_RTL8812AU, WIFI_RTL8822CS, WIFI_RTL_SERIES, WIFI_ESP8089, TYPE_MAX, }; 然后编译内核编译出8822cs.ko 5.上层VID PID加进去,命令查看后调整正确。调试命令* cat /sys/bus/sdio/devices/mmc2:0001:1/uevent DRIVER=rtl88x2cs SDIO_CLASS=07 SDIO_ID=024C:C822 MODALIAS=sdio:c07v024CdC822 这一步如果devices目录下没有节点可以检查下硬件。添加: hardwarelibhardware_legacywifirk_wifi_ctrl.c static wifi_device supported_wifi_devices[] = { + {"RTL8822CS", "024c:c822"}, {"RTL8188FU", "0bda:f179"}, {"RTL8822BU", "0bda:b82c"}, {"RTL8189ES", "024c:8179"}, ALOGD("PCIE WIFI identify sucess"); else { ALOGD("maybe there is no u*** wifi or sdio or pcie wifi,set default wifi module Brocom APXXX"); - strcpy(recoginze_wifi_chip, "APXXX"); + strcpy(recoginze_wifi_chip, "RTL8822CS"); identify_sucess = 1 ; } } diff --git a/wifi/wifi.c b/wifi/wifi.c index 04da01c…73d0f5d 100755 — a/wifi/wifi.c +++ b/wifi/wifi.c @@ -95,6 +95,7 @@ extern int ifc_down(const char name); #define RTL8192DU_DRIVER_MODULE_PATH "/system/lib/modules/8192du.ko" #define RTL8812AU_DRIVER_MODULE_PATH "/system/lib/modules/8812au.ko" #define RTL8822BE_DRIVER_MODULE_PATH "/system/lib/modules/8822be.ko" +#define RTL8822CS_DRIVER_MODULE_PATH "/system/lib/modules/8822cs.ko" #define SSV6051_DRIVER_MODULE_PATH "/system/lib/modules/ssv6051.ko" #define ESP8089_DRIVER_MODULE_PATH "/system/lib/modules/esp8089.ko" #define BCM_DRIVER_MODULE_PATH "/system/lib/modules/bcmdhd.ko" @@ -112,6 +113,7 @@ extern int ifc_down(const char name); #define RTL8189FS_DRIVER_MODULE_NAME "8189fs" #define RTL8192DU_DRIVER_MODULE_NAME "8192du" #define RTL8812AU_DRIVER_MODULE_NAME "8812au" +#define RTL8812AU_DRIVER_MODULE_NAME "8822cs" #define SSV6051_DRIVER_MODULE_NAME "ssv6051" #define ESP8089_DRIVER_MODULE_NAME "esp8089" #define BCM_DRIVER_MODULE_NAME "bcmdhd" @@ -206,6 +208,7 @@ wifi_ko_file_name module_list[] = {"RTL8189ES", RTL8189ES_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG}, {"RTL8723BS", RTL8723BS_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG}, {"RTL8723CS", RTL8723CS_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG}, + {"RTL8822CS", RTL8822CS_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG}, {"RTL8723DS", RTL8723DS_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG}, {"RTL8812AU", RTL8812AU_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG}, {"RTL8189FS", RTL8189FS_DRIVER_MODULE_PATH, UNKKOWN_DRIVER_MODULE_ARG}, 调试命令 cat /sys/bus/sdio/devices/mmc2:0001:1/uevent //可查看SDIO设备ID cat /sys/kernel/debug/mmcx/ios //可查看WIFI_sdio 相关信息 logcat \| grep WifiHW //查看WIFI加载信息 WIFI 芯片识别流程开机对 wifi 模块上电，并自动进行扫描 sdio 操作。系统启动打开 wifi 操作时，分别对系统 sys/bus/sdio（sdio wifi）， sys/bus/u*(u* wifi)， sys/bus/pic (pcie wifi )文件系统下的 uevent 进行读取。获取到 wifi 芯片 vid pid 加载相应的 wifi ko 驱动。识别到 wifi 类型后加载不同的 wpa_supplicant 参数启动 wifi。所遇问题 1.打印如下：-5 ：IO error 18:15:12[ 2.938387] mmc_host mmc2: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0) 18:15:12[ 2.951718] dwmmc_rockchip fe310000.dwmmc: 1 slots initialized 18:15:12[ 2.952814] rockchip-dmc dmc: Failed to get leakage 18:15:12[ 2.953123] rockchip-dmc dmc: Failed to get pvtm 18:15:12[ 2.954708] rockchip-dmc dmc: could not find power_model node 18:15:12[ 2.961065] dwmmc_rockchip fe310000.dwmmc: card claims to support voltages below defined range 18:15:12[ 2.961680] rk808-rtc rk808-rtc: setting system clock to 2013-01-18 09:54:29 UTC (1358502869) 18:15:12[ 2.963159] It doesn't contain Rogue gpu 18:15:12[ 2.975194] mmc_host mmc2: Voltage change didn't complete 18:15:12[ 2.977144] mmc2: error -5 whilst initialising SDIO card 2.sdio_clk输出只到200khz 没达到50Mhz 3.sdio的reset脚复位后拉低解决 1 . 2.3 问题：打入补丁后正常 Realtek 88x2BS系列： SDIO 3.0是1.8V，原先代码是走到一个函数里设置信号电压为1.8V，正常就可继续流程错误返回I/O error ；所以要跳过设置信号电压这个步骤即可 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -648,8 +648,14 @@ try_again: * to make sure which speed mode should work. / if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) { +#if 0 / SDIO 3.0 patch for Realtek 88x2BS */ err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180, ocr_card); +#else + pr_warn("%s: Skip set signal voltage to 1.8vn", + mmc_hostname(host)); + err = 0; +#endif if (err == -EAGAIN) { mmc_sdio_resend_if_cond(host, card); retries--; BT模块 1.替换rtkbt 2.打入system.patch

2022-2-18 11:30:00 评论举报张润佘