1. /********************************************************************************
  2.  *                  I.MX6 AW-NB177NF WIFI 驱动移植问题
  3.  * 说明：
  4.  *     之前驱动移植，但看不到有wlan设备产生，于是感觉是wifi驱动出了问题，于是开始
  5.  * 分析厂家提供的wifi驱动，发现id对应的信息不对，经过与FAE确认之后并验证，确实是
  6.  * 这个问题导致的。
  7.  *
  8.  *                                              2016-6-20 深圳 南山平山村 曾剑锋
  9.  *******************************************************************************/
  10.  
  11. 一、参考文档：
  12.     . AW-NB177NF-DS-BC-Rev0.3_single Ant.pdf
  13.     . 基于linux-2.6..8内核的SDIO/wifi驱动分析(转)
  14.        http://www.cnblogs.com/hoys/archive/2013/01/09/2853715.html
  15.  
  16. 二、wifi 驱动注册设备驱动的id相关代码：
  17.     ......
  18.     static const struct sdio_device_id sdio_ids[] =
  19.     {
  20.     #ifdef CONFIG_RTL8723B
  21.         { SDIO_DEVICE(0x024c, 0xB723),.driver_data = RTL8723B},
  22.     #endif
  23.     #ifdef CONFIG_RTL8188E
  24.         { SDIO_DEVICE(0x024c, 0x8179),.driver_data = RTL8188E},
  25.     #endif //CONFIG_RTL8188E
  26.  
  27.     #ifdef CONFIG_RTL8821A
  28.         { SDIO_DEVICE(0x024c, 0x8821),.driver_data = RTL8821},
  29.     #endif //CONFIG_RTL8821A
  30.  
  31.     #ifdef CONFIG_RTL8192E
  32.         { SDIO_DEVICE(0x024c, 0x818B),.driver_data = RTL8192E},
  33.     #endif //CONFIG_RTL8192E
  34.  
  35.     #if defined(RTW_ENABLE_WIFI_CONTROL_FUNC) /* temporarily add this to accept all sdio wlan id */
  36.         { SDIO_DEVICE_CLASS(SDIO_CLASS_WLAN) },
  37.     #endif
  38.         { /* end: all zeroes */             },
  39.     };
  40.     ......
  41.     #define SDIO_DEVICE(vend,dev) \
  42.         .class = SDIO_ANY_ID, \
  43.         .vendor = (vend), .device = (dev)
  44.     ......
  45.     #define SDIO_ANY_ID (~0)
  46.     ......
  47.  
  48. 三、获取SDIO设备信息代码位置如下：
  49.     static int sdio_init_func(struct mmc_card *card, unsigned int fn)
  50.     {
  51.         int ret;
  52.         struct sdio_func *func;
  53.  
  54.         BUG_ON(fn > SDIO_MAX_FUNCS);
  55.  
  56.         func = sdio_alloc_func(card);
  57.         if (IS_ERR(func))
  58.             return PTR_ERR(func);
  59.  
  60.         func->num = fn;
  61.  
  62.         if (!(card->quirks & MMC_QUIRK_NONSTD_SDIO)) {
  63.             ret = sdio_read_fbr(func);
  64.             if (ret)
  65.                 goto fail;
  66.  
  67.             ret = sdio_read_func_cis(func);
  68.             if (ret)
  69.                 goto fail;
  70.         } else {
  71.             func->vendor = func->card->cis.vendor;
  72.             func->device = func->card->cis.device;
  73.             func->max_blksize = func->card->cis.blksize;
  74.         }
  75.  
  76.         card->sdio_func[fn - ] = func;
  77.  
  78.         printk("check sdio, func->vendor: 0x%x, func->device: 0x%x, func->max_blksize: 0x%x.\n", func->vendor, func->device, func-       >max_blksize);
  79.         return ;
  80.  
  81.     fail:
  82.         /*
  83.          * It is okay to remove the function here even though we hold
  84.          * the host lock as we haven't registered the device yet.
  85.          */
  86.         sdio_remove_func(func);
  87.         return ret;
  88.     }
  89.  
  90. 四、SDIO驱动获取到的信息：
  91.     func->vendor: 0x24c, func->device: 0x626, func->max_blksize: 0x200.
  92.  
  93. 五、解决办法：
  94.     { SDIO_DEVICE(0x024c, 0x626),.driver_data = RTL8723B},
  95.  
  96. 六、查看结果：
  97.     root@android:/ # busybox ifconfig -a
  98.     can0      Link encap:UNSPEC  HWaddr ---------------
  99.               NOARP  MTU:  Metric:
  100.               RX packets: errors: dropped: overruns: frame:
  101.               TX packets: errors: dropped: overruns: carrier:
  102.               collisions: txqueuelen:
  103.               RX bytes: (0.0 B)  TX bytes: (0.0 B)
  104.               Interrupt: 
  105.  
  106.     can1      Link encap:UNSPEC  HWaddr ---------------
  107.               NOARP  MTU:  Metric:
  108.               RX packets: errors: dropped: overruns: frame:
  109.               TX packets: errors: dropped: overruns: carrier:
  110.               collisions: txqueuelen:
  111.               RX bytes: (0.0 B)  TX bytes: (0.0 B)
  112.               Interrupt: 
  113.  
  114.     ip6tnl0   Link encap:UNSPEC  HWaddr ---------------
  115.               NOARP  MTU:  Metric:
  116.               RX packets: errors: dropped: overruns: frame:
  117.               TX packets: errors: dropped: overruns: carrier:
  118.               collisions: txqueuelen:
  119.               RX bytes: (0.0 B)  TX bytes: (0.0 B)
  120.  
  121.     lo        Link encap:Local Loopback
  122.               inet addr:127.0.0.1  Mask:255.0.0.0
  123.               inet6 addr: ::/ Scope:Host
  124.               UP LOOPBACK RUNNING  MTU:  Metric:
  125.               RX packets: errors: dropped: overruns: frame:
  126.               TX packets: errors: dropped: overruns: carrier:
  127.               collisions: txqueuelen:
  128.               RX bytes: (686.9 KiB)  TX bytes: (686.9 KiB)
  129.  
  130.     sit0      Link encap:IPv6-in-IPv4
  131.               NOARP  MTU:  Metric:
  132.               RX packets: errors: dropped: overruns: frame:
  133.               TX packets: errors: dropped: overruns: carrier:
  134.               collisions: txqueuelen:
  135.               RX bytes: (0.0 B)  TX bytes: (0.0 B)
  136.  
  137.     tunl0     Link encap:UNSPEC  HWaddr ---------------
  138.               NOARP  MTU:  Metric:
  139.               RX packets: errors: dropped: overruns: frame:
  140.               TX packets: errors: dropped: overruns: carrier:
  141.               collisions: txqueuelen:
  142.               RX bytes: (0.0 B)  TX bytes: (0.0 B)
  143.  
  144.     wlan0     Link encap:Ethernet  HWaddr :A5:::6E:
  145.               BROADCAST MULTICAST  MTU:  Metric:
  146.               RX packets: errors: dropped: overruns: frame:
  147.               TX packets: errors: dropped: overruns: carrier:
  148.               collisions: txqueuelen:
  149.               RX bytes: (0.0 B)  TX bytes: (0.0 B)
  150.  
  151.     root@android:/ #
  152.  
  153. 七、Linux kernel log:
  154.     RTL871X: module init start
  155.     RTL871X: rtl8723bs v4..16_13854.20150410_BTCOEX20150119-
  156.     RTL871X: build time: Jun   ::
  157.     RTL871X: rtl8723bs BT-Coex version = BTCOEX20150119-
  158.     RTL871X: module init ret=
  159.     ......
  160.     check sdio, func->vendor: 0x24c, func->device: 0x626, func->max_blksize: 0x200.
  161.     mmc2: new high speed SDIO card at address
  162.     ......
  163.     RTL871X: register rtw_netdev_ops to netdev_ops
  164.     RTL871X: rtw_hal_config_rftype RF_Type is  TotalTxPath is
  165.     RTL871X: Chip Version Info: CHIP_8723B_Normal_Chip_TSMC_B_CUT_1T1R_RomVer()
  166.     RTL871X: EEPROM type is E-FUSE
  167.     RTL871X: SetHwReg8723B: bMacPwrCtrlOn=
  168.     RTL871X: PowerOnCheck: val_mix:0x0000063f, res:0x0000063f
  169.     RTL871X: PowerOnCheck: 0x100 the result of cmd52 and cmd53 is the same.
  170.     RTL871X: PowerOnCheck: 0x1B8 test Pass.
  171.     RTL871X: _ReadAdapterInfo8723BS, 0x4e=0xe2
  172.     RTL871X: hal_EfuseSwitchToBank: Efuse switch bank to
  173.     RTL871X: hal_ReadEFuse_WiFi: data end at address=0xad
  174.     RTL871X: Efuse Realmap:
  175.          0D
  176.           2F 2F 2F 2E 2E E0 FF FF FF FF
  177.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  178.     FF FF FF FF FF FF FF FF FF FF 2D 2D 2D 2D 2D 2D
  179.     2D 2D 2D 2D 2D E0 FF FF FF FF FF FF FF FF FF FF
  180.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  181.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  182.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  183.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  184.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  185.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  186.     FF FF FF FF FF FF FF FF  2C     FF FF
  187.     FF       FF  FF  FF FF FF FF FF
  188.     3E       FF   4C
  189.     0C        FF   0C   2A
  190.                   FF FF 
  191.  
  192.      EB  6E      FF  A5   6E
  193.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  194.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  195.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  196.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  197.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  198.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  199.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  200.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  201.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  202.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  203.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  204.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  205.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  206.     FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
  207.     RTL871X: Hal_EfuseParseBTCoexistInfo_8723B: Enable BT-coex, ant_num=
  208.     RTL871X: Hal_EfuseParsePackageType_8723B phy efuse read 0x1FB =fc
  209.     RTL871X: PackageType = 0x4
  210.     RTL871X: Hal_EfuseParseVoltage_8723B hwinfo[EEPROM_Voltage_ADDR_8723B] =
  211.     EXT4-fs (mmcblk0p5): mounted filesystem with ordered data mode. Opts: (null)
  212.     RTL871X: Hal_EfuseParseVoltage_8723B pHalData->adjuseVoltageVal =
  213.     RTL871X: AutoloadFail =,
  214.     RTL871X: pHalData->EEPROMRFGainVal=f0
  215.     RTL871X: EEPRORFGainOffset = 0x29
  216.     RTL871X: SetHwReg8723B: bMacPwrCtrlOn=
  217.     RTL871X: <==== _ReadAdapterInfo8723BS in  ms
  218.     RTL871X: Hal_ChannelPlanToRegulation ChannelPlan:0x20,Regulation(2_4G/5G):0x03,0x03
  219.     RTL871X: init_channel_set ChannelPlan ID  Chan num:
  220.     EXT4-fs (mmcblk0p4): warning: checktime reached, running e2fsck is recommended
  221.     RTL871X: rtw_alloc_macid(eth%d) if1, hwaddr:ff:ff:ff:ff:ff:ff macid:
  222.     RTL871X: rtw_register_early_suspend
  223.     RTL871X: Init_ODM_ComInfo_8723b(): fab_ver= cut_ver=
  224.     RTL871X: rtw_macaddr_cfg mac addr::a5:::6e:
  225.     RTL871X: bDriverStopped:, bSurpriseRemoved:, bup:, hw_init_completed:
  226.     RTL871X: rtw_ndev_init(wlan0)
  227.     RTL871X: _rtw_drv_register_netdev, MAC Address (if1) = :a5:::6e:
  228.     ......
  229. 八、Linux 命令行打开wifi：
  230.     root@android:/ # netcfg
  231.     lo       UP                                   127.0.0.1/   0x00000049 :::::
  232.     can0     DOWN                                   0.0.0.0/   0x00000080 :::::
  233.     can1     DOWN                                   0.0.0.0/   0x00000080 :::::
  234.     tunl0    DOWN                                   0.0.0.0/   0x00000080 :::::
  235.     sit0     DOWN                                   0.0.0.0/   0x00000080 :::::
  236.     ip6tnl0  DOWN                                   0.0.0.0/   0x00000080 :::::
  237.     wlan0    DOWN                                   0.0.0.0/   0x00001002 :a5:::6e:
  238.     root@android:/ # busybox ifconfig wlan0 up
  239.     RTL871X: +871x_drv - drv_open, bup=
  240.     RTL871X: FW does not exist before power on!!
  241.     RTL871X: SetHwReg8723B: bMacPwrCtrlOn=
  242.     RTL871X: PowerOnCheck: val_mix:0x0000063f, res:0x0000063f
  243.     RTL871X: PowerOnCheck: 0x100 the result of cmd52 and cmd53 is the same.
  244.     RTL871X: PowerOnCheck: 0x1B8 test Pass.
  245.     RTL871X: Power on ok!
  246.     RTL871X: rtl8723b_FirmwareDownload fw: FW_NIC, size:
  247.     RTL871X: rtl8723b_FirmwareDownload: fw_ver= fw_subver= sig=0x5301, Month=, Date=, Hour=, Minute=
  248.     RTL871X: rtl8723b_FirmwareDownload(): Shift for fw header!
  249.     RTL871X: polling_fwdl_chksum: Checksum report OK! (, 0ms), REG_MCUFWDL:0x00070305
  250.     RTL871X: _8051Reset8723: Finish
  251.     RTL871X: _FWFreeToGo: Polling FW ready OK! (, 30ms), REG_MCUFWDL:0x000702c6
  252.     RTL871X: FWDL success. write_fw:, 300ms
  253.     RTL871X:  <=== rtl8723b_FirmwareDownload()
  254.     RTL871X: HalDetectPwrDownMode(): PDN=
  255.     RTL871X: Set RF Chip ID to RF_6052 and RF type to .
  256.     RTL871X: _init_available_page_threshold(): Enable Tx FIFO Page Threshold H:0x7a7a,N:0x7575,L:0x7575
  257.     RTL871X: ===>phy_SwChnl8723B: Channel =
  258.     RTL871X: pDM_Odm TxPowerTrackControl =
  259.     RTL871X: ===>phy_SwChnl8723B: Channel =
  260.     RTL871X: #### hw_var_set_opmode() - iface_type() mode =  ####
  261.     RTL871X: Using the default RF gain.
  262.     RTL871X: MAC Address = :a5:::6e:
  263.     RTL871X: start rtl8723bs_xmit_thread(wlan0)
  264.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  265.     RTL871X: -871x_drv - drv_open, bup=
  266.     ADDRCONF(NETDEV_UP): wlan0: link is not ready
  267.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  268.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  269.     root@android:/ # RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  270.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  271.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  272.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  273.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  274.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  275.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  276.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  277.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  278.     RTL871X: rtl8723b_c2h_packet_handler: C2H, ID= seq= len=
  279.     RTL871X: IsBtDisabled=, IsBtControlLps=
  280.     RTL871X: ==>rtw_ps_processor .fw_state()
  281.     RTL871X: ==>ips_enter cnts:
  282.     RTL871X: nolinked power save enter
  283.     RTL871X: ===> rtw_ips_pwr_down...................
  284.     RTL871X: ====> rtw_ips_dev_unload...
  285.     RTL871X: rtl8723bs_hal_deinit: issue H2C to FW when entering IPS
  286.     RTL871X: rtl8723b_set_FwPwrModeInIPS_cmd()
  287.     RTL871X: rtl8723bs_hal_deinit  polling REG_HMETFR=0x4, cnt=
  288.     RTL871X: rtl8723bs_hal_deinit  polling REG_HMETFR=0x0, cnt=
  289.     RTL871X: rtl8723bs_hal_deinit: write rpwm=
  290.     RTL871X: rtl8723bs_hal_deinit  polling 0x100=0xea, cnt=
  291.     RTL871X: polling done when entering IPS, check result : 0x100=0xea, cnt=, MAC_1cc=0xea
  292.     RTL871X: <=== rtw_ips_pwr_down..................... in 70ms
  293.  
  294.     root@android:/ # netcfg
  295.     lo       UP                                   127.0.0.1/   0x00000049 :::::
  296.     can0     DOWN                                   0.0.0.0/   0x00000080 :::::
  297.     can1     DOWN                                   0.0.0.0/   0x00000080 :::::
  298.     tunl0    DOWN                                   0.0.0.0/   0x00000080 :::::
  299.     sit0     DOWN                                   0.0.0.0/   0x00000080 :::::
  300.     ip6tnl0  DOWN                                   0.0.0.0/   0x00000080 :::::
  301.     wlan0    UP                                     0.0.0.0/   0x00001043 :a5:::6e:

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