/********************************************************************************
* I.MX6 AW-NB177NF WIFI 驱动移植问题
* 说明：
* 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
* 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
* 这个问题导致的。
*
* 2016-6-20 深圳 南山平山村 曾剑锋
*******************************************************************************/
一、参考文档：
1. AW-NB177NF-DS-BC-Rev0.3_single Ant.pdf
2. 基于linux-2.6.38.8内核的SDIO/wifi驱动分析(转)
http://www.cnblogs.com/hoys/archive/2013/01/09/2853715.html
二、wifi 驱动注册设备驱动的id相关代码：
......
static const struct sdio_device_id sdio_ids[] =
{
#ifdef CONFIG_RTL8723B
{ SDIO_DEVICE(0x024c, 0xB723),.driver_data = RTL8723B},
#endif
#ifdef CONFIG_RTL8188E
{ SDIO_DEVICE(0x024c, 0x8179),.driver_data = RTL8188E},
#endif //CONFIG_RTL8188E
#ifdef CONFIG_RTL8821A
{ SDIO_DEVICE(0x024c, 0x8821),.driver_data = RTL8821},
#endif //CONFIG_RTL8821A
#ifdef CONFIG_RTL8192E
{ SDIO_DEVICE(0x024c, 0x818B),.driver_data = RTL8192E},
#endif //CONFIG_RTL8192E
#if defined(RTW_ENABLE_WIFI_CONTROL_FUNC) /* temporarily add this to accept all sdio wlan id */
{ SDIO_DEVICE_CLASS(SDIO_CLASS_WLAN) },
#endif
{ /* end: all zeroes */ },
};
......
#define SDIO_DEVICE(vend,dev) \
.class = SDIO_ANY_ID, \
.vendor = (vend), .device = (dev)
......
#define SDIO_ANY_ID (~0)
......
三、获取SDIO设备信息代码位置如下：
static int sdio_init_func(struct mmc_card *card, unsigned int fn)
{
int ret;
struct sdio_func *func;
BUG_ON(fn > SDIO_MAX_FUNCS);
func = sdio_alloc_func(card);
if (IS_ERR(func))
return PTR_ERR(func);
func->num = fn;
if (!(card->quirks & MMC_QUIRK_NONSTD_SDIO)) {
ret = sdio_read_fbr(func);
if (ret)
goto fail;
ret = sdio_read_func_cis(func);
if (ret)
goto fail;
} else {
func->vendor = func->card->cis.vendor;
func->device = func->card->cis.device;
func->max_blksize = func->card->cis.blksize;
}
card->sdio_func[fn - 1] = func;
printk("check sdio, func->vendor: 0x%x, func->device: 0x%x, func->max_blksize: 0x%x.\n", func->vendor, func->device, func- >max_blksize);
return 0;
fail:
/*
* It is okay to remove the function here even though we hold
* the host lock as we haven't registered the device yet.
*/
sdio_remove_func(func);
return ret;
}
四、SDIO驱动获取到的信息：
func->vendor: 0x24c, func->device: 0x626, func->max_blksize: 0x200.
五、解决办法：
{ SDIO_DEVICE(0x024c, 0x626),.driver_data = RTL8723B},
六、查看结果：
root@android:/ # busybox ifconfig -a
can0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:16 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:142
can1 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:16 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:143
ip6tnl0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:1452 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:4683 errors:0 dropped:0 overruns:0 frame:0
TX packets:4683 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:703477 (686.9 KiB) TX bytes:703477 (686.9 KiB)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
tunl0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-10-00-00-00-00-00-00-00-00-00
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr 80:A5:89:49:6E:81
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
root@android:/ #
七、Linux kernel log:
RTL871X: module init start
RTL871X: rtl8723bs v4.3.16_13854.20150410_BTCOEX20150119-5844
RTL871X: build time: Jun 20 2016 09:05:58
RTL871X: rtl8723bs BT-Coex version = BTCOEX20150119-5844
RTL871X: module init ret=0
......
check sdio, func->vendor: 0x24c, func->device: 0x626, func->max_blksize: 0x200.
mmc2: new high speed SDIO card at address 0001
......
RTL871X: register rtw_netdev_ops to netdev_ops
RTL871X: rtw_hal_config_rftype RF_Type is 3 TotalTxPath is 1
RTL871X: Chip Version Info: CHIP_8723B_Normal_Chip_TSMC_B_CUT_1T1R_RomVer(0)
RTL871X: EEPROM type is E-FUSE
RTL871X: SetHwReg8723B: bMacPwrCtrlOn=1
RTL871X: PowerOnCheck: val_mix:0x0000063f, res:0x0000063f
RTL871X: PowerOnCheck: 0x100 the result of cmd52 and cmd53 is the same.
RTL871X: PowerOnCheck: 0x1B8 test Pass.
RTL871X: _ReadAdapterInfo8723BS, 0x4e=0xe2
RTL871X: hal_EfuseSwitchToBank: Efuse switch bank to 0
RTL871X: hal_ReadEFuse_WiFi: data end at address=0xad
RTL871X: Efuse Realmap:
08 28 00 62 07 0D 45 10 02 00 00
29 29 29 29 28 28 2F 2F 2F 2E 2E E0 FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF 2D 2D 2D 2D 2D 2D
2D 2D 2D 2D 2D E0 FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF 20 2C 20 00 00 00 FF FF
FF 29 20 11 00 00 00 FF 00 FF 12 FF FF FF FF FF
3E 10 01 02 23 00 00 FF 20 04 4C 02 26 06 21 02
0C 00 22 04 00 08 00 32 FF 21 02 0C 00 22 2A 01
01 00 00 00 00 00 00 00 00 00 00 00 02 00 FF FF
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 EB 00 6E 01 00 00 00 00 FF 80 A5 89 49 6E 81
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
RTL871X: Hal_EfuseParseBTCoexistInfo_8723B: Enable BT-coex, ant_num=1
RTL871X: Hal_EfuseParsePackageType_8723B phy efuse read 0x1FB =fc
RTL871X: PackageType = 0x4
RTL871X: Hal_EfuseParseVoltage_8723B hwinfo[EEPROM_Voltage_ADDR_8723B] =62
EXT4-fs (mmcblk0p5): mounted filesystem with ordered data mode. Opts: (null)
RTL871X: Hal_EfuseParseVoltage_8723B pHalData->adjuseVoltageVal =6
RTL871X: AutoloadFail =0,
RTL871X: pHalData->EEPROMRFGainVal=f0
RTL871X: EEPRORFGainOffset = 0x29
RTL871X: SetHwReg8723B: bMacPwrCtrlOn=0
RTL871X: <==== _ReadAdapterInfo8723BS in 300 ms
RTL871X: Hal_ChannelPlanToRegulation ChannelPlan:0x20,Regulation(2_4G/5G):0x03,0x03
RTL871X: init_channel_set ChannelPlan ID 20 Chan num:13
EXT4-fs (mmcblk0p4): warning: checktime reached, running e2fsck is recommended
RTL871X: rtw_alloc_macid(eth%d) if1, hwaddr:ff:ff:ff:ff:ff:ff macid:1
RTL871X: rtw_register_early_suspend
RTL871X: Init_ODM_ComInfo_8723b(): fab_ver=0 cut_ver=0
RTL871X: rtw_macaddr_cfg mac addr:80:a5:89:49:6e:81
RTL871X: bDriverStopped:1, bSurpriseRemoved:0, bup:0, hw_init_completed:0
RTL871X: rtw_ndev_init(wlan0)
RTL871X: _rtw_drv_register_netdev, MAC Address (if1) = 80:a5:89:49:6e:81
......
八、Linux 命令行打开wifi：
root@android:/ # netcfg
lo UP 127.0.0.1/8 0x00000049 00:00:00:00:00:00
can0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
can1 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
tunl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
sit0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
ip6tnl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
wlan0 DOWN 0.0.0.0/0 0x00001002 80:a5:89:49:6e:81
root@android:/ # busybox ifconfig wlan0 up
RTL871X: +871x_drv - drv_open, bup=0
RTL871X: FW does not exist before power on!!
RTL871X: SetHwReg8723B: bMacPwrCtrlOn=1
RTL871X: PowerOnCheck: val_mix:0x0000063f, res:0x0000063f
RTL871X: PowerOnCheck: 0x100 the result of cmd52 and cmd53 is the same.
RTL871X: PowerOnCheck: 0x1B8 test Pass.
RTL871X: Power on ok!
RTL871X: rtl8723b_FirmwareDownload fw: FW_NIC, size: 32108
RTL871X: rtl8723b_FirmwareDownload: fw_ver=23 fw_subver=0000 sig=0x5301, Month=03, Date=26, Hour=14, Minute=35
RTL871X: rtl8723b_FirmwareDownload(): Shift for fw header!
RTL871X: polling_fwdl_chksum: Checksum report OK! (1, 0ms), REG_MCUFWDL:0x00070305
RTL871X: _8051Reset8723: Finish
RTL871X: _FWFreeToGo: Polling FW ready OK! (297, 30ms), REG_MCUFWDL:0x000702c6
RTL871X: FWDL success. write_fw:1, 300ms
RTL871X: <=== rtl8723b_FirmwareDownload()
RTL871X: HalDetectPwrDownMode(): PDN=0
RTL871X: Set RF Chip ID to RF_6052 and RF type to 3.
RTL871X: _init_available_page_threshold(): Enable Tx FIFO Page Threshold H:0x7a7a,N:0x7575,L:0x7575
RTL871X: ===>phy_SwChnl8723B: Channel = 1
RTL871X: pDM_Odm TxPowerTrackControl = 1
RTL871X: ===>phy_SwChnl8723B: Channel = 1
RTL871X: #### hw_var_set_opmode() -5250 iface_type(0) mode = 2 ####
RTL871X: Using the default RF gain.
RTL871X: MAC Address = 80:a5:89:49:6e:81
RTL871X: start rtl8723bs_xmit_thread(wlan0)
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=9 seq=0 len=7
RTL871X: -871x_drv - drv_open, bup=1
ADDRCONF(NETDEV_UP): wlan0: link is not ready
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=1 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=2 len=7
root@android:/ # RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=3 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=4 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=5 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=6 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=7 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=8 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=9 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=10 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=11 len=7
RTL871X: rtl8723b_c2h_packet_handler: C2H, ID=11 seq=12 len=7
RTL871X: IsBtDisabled=0, IsBtControlLps=0
RTL871X: ==>rtw_ps_processor .fw_state(8)
RTL871X: ==>ips_enter cnts:1
RTL871X: nolinked power save enter
RTL871X: ===> rtw_ips_pwr_down...................
RTL871X: ====> rtw_ips_dev_unload...
RTL871X: rtl8723bs_hal_deinit: issue H2C to FW when entering IPS
RTL871X: rtl8723b_set_FwPwrModeInIPS_cmd()
RTL871X: rtl8723bs_hal_deinit polling REG_HMETFR=0x4, cnt=1
RTL871X: rtl8723bs_hal_deinit polling REG_HMETFR=0x0, cnt=2
RTL871X: rtl8723bs_hal_deinit: write rpwm=81
RTL871X: rtl8723bs_hal_deinit polling 0x100=0xea, cnt=1
RTL871X: polling done when entering IPS, check result : 0x100=0xea, cnt=1, MAC_1cc=0xea
RTL871X: <=== rtw_ips_pwr_down..................... in 70ms
root@android:/ # netcfg
lo UP 127.0.0.1/8 0x00000049 00:00:00:00:00:00
can0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
can1 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
tunl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
sit0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
ip6tnl0 DOWN 0.0.0.0/0 0x00000080 00:00:00:00:00:00
wlan0 UP 0.0.0.0/0 0x00001043 80:a5:89:49:6e:81
