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	<4AB0EDEB.9010803@canonical.com>
From: =?ISO-8859-1?Q?G=E1bor_Stefanik?= <netrolller.3d@gmail.com>
Date: Wed, 16 Sep 2009 17:13:37 +0200
Message-ID: <69e28c910909160813h2a91ff32hb5fa836f1f7a4963@mail.gmail.com>
Subject: Re: [b43] About supporting of BCM4312 [14e4:4315] with Low Power PHY
To: Bryan Wu <bryan.wu@canonical.com>
Cc: mb@bu3sch.de, stefano.brivio@polimi.it,
	linux-wireless@vger.kernel.org
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Sender: linux-wireless-owner@vger.kernel.org

2009/9/16 Bryan Wu <bryan.wu@canonical.com>:
> Hi Gabor,
>
> I tried the latest cmpat-wireless 09-16 snapshot on my machine which runs on 2.6.31
> Ubuntu Karmic latest kernel. The hardware probing passes and wlan1 interface shows up.
> But the iwlist scanning got no data from wlan1 interface,
>
> dmesg:
> ---
> [ ?364.371703] b43-pci-bridge 0000:07:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> [ ?364.371761] b43-pci-bridge 0000:07:00.0: setting latency timer to 64
> [ ?364.437779] ssb: Sonics Silicon Backplane found on PCI device 0000:07:00.0
> [ ?364.491488] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
> [ ?364.533562] b43-phy0 debug: Found PHY: Analog 6, Type 5, Revision 1
> [ ?364.533604] b43-phy0 debug: Found Radio: Manuf 0x17F, Version 0x2062, Revision 2
> [ ?364.693040] phy0: Selected rate control algorithm 'minstrel'
> [ ?364.701666] Broadcom 43xx driver loaded [ Features: PML, Firmware-ID: FW13 ]
> [ ?364.748486] udev: renamed network interface wlan0 to wlan1
> [ ?364.824296] b43 ssb0:0: firmware: requesting b43/ucode15.fw
> [ ?364.901848] b43 ssb0:0: firmware: requesting b43/lp0initvals15.fw
> [ ?364.931482] b43 ssb0:0: firmware: requesting b43/lp0bsinitvals15.fw
> [ ?365.140212] b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)

Please test with v478 or newer.

> [ ?365.144349] b43-phy0 debug: b2062: Using crystal tab entry 19200 kHz.
> [ ?365.412558] b43-phy0 debug: Chip initialized
> [ ?365.413163] b43-phy0 debug: 64-bit DMA initialized
> [ ?365.413356] b43-phy0 debug: QoS enabled

Try disabling QoS via modparam. Also, try earlier compat-wireless versions.

> [ ?365.434064] Registered led device: b43-phy0::tx
> [ ?365.434315] Registered led device: b43-phy0::rx
> [ ?365.434545] Registered led device: b43-phy0::radio
> [ ?365.435079] b43-phy0 debug: Wireless interface started
> [ ?365.435208] b43-phy0 debug: Adding Interface type 2
> ----
>
> ifconfig:
> ---
> $ ifconfig
> eth0 ? ? ?Link encap:Ethernet ?HWaddr 00:24:e8:bd:c9:3d
> ? ? ? ? ?inet addr:10.101.46.6 ?Bcast:10.101.46.255 ?Mask:255.255.255.0
> ? ? ? ? ?inet6 addr: fe80::224:e8ff:febd:c93d/64 Scope:Link
> ? ? ? ? ?UP BROADCAST RUNNING MULTICAST ?MTU:1500 ?Metric:1
> ? ? ? ? ?RX packets:797 errors:0 dropped:0 overruns:0 frame:0
> ? ? ? ? ?TX packets:663 errors:0 dropped:0 overruns:0 carrier:0
> ? ? ? ? ?collisions:0 txqueuelen:1000
> ? ? ? ? ?RX bytes:76364 (76.3 KB) ?TX bytes:452350 (452.3 KB)
> ? ? ? ? ?Interrupt:30 Base address:0xc000
>
> 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:29 errors:0 dropped:0 overruns:0 frame:0
> ? ? ? ? ?TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
> ? ? ? ? ?collisions:0 txqueuelen:0
> ? ? ? ? ?RX bytes:6202 (6.2 KB) ?TX bytes:6202 (6.2 KB)
>
> wlan1 ? ? Link encap:Ethernet ?HWaddr 00:25:56:a0:15:58
> ? ? ? ? ?UP 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)
> ---
>
> $ iwconfig wlan1
> wlan1 ? ? IEEE 802.11bg ?Mode:Managed ?Access Point: Not-Associated
> ? ? ? ? ?Tx-Power=20 dBm
> ? ? ? ? ?Retry ?long limit:7 ? RTS thr:off ? Fragment thr:off
> ? ? ? ? ?Power Management:off
>
> $ sudo iwlist wlan1 scanning
> wlan1 ? ? No scan results

Use "sudo iw dev wlan1 scan" with mac80211 drivers.

>
> Do you guys think it is related to 64bit DMA issue? I really want to help to develop this b43 opensource driver,
> anything need me to do, please feel free ping me.
>
> Thanks
> -Bryan
>
> G?bor Stefanik wrote:
>> This chip works (though not quite "supported", that is, can't
>> guarantee that it will work for you, and speed is not up to par with
>> wl_hybrid) in wireless-testing. It should also work in
>> compat-wireless, though compat-wireless is having problems with 64-bit
>> DMA lately (probably also affects the G-PHY 4311/02). Specifically,
>> the Dell 1397 (half-mini version of the 1395) and the HP 459263-002
>> are known to work.
>>
>> On Fri, Sep 11, 2009 at 4:22 AM, Bryan Wu <bryan.wu@canonical.com> wrote:
>>> Dear Michael and Stefano,
>>>
>>> I have a project which integrate Broadcom Wifi chip. But the mainline b43 still does not support this chip, because it has Low Power PHY.
>>>
>>> Here is my lspci -vvnn output for this device:
>>> ------
>>> 07:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g [14e4:4315] (rev 01)
>>> ? ? ? ?Subsystem: Dell Device [1028:000c]
>>> ? ? ? ?Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
>>> ? ? ? ?Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>> ? ? ? ?Latency: 0, Cache Line Size: 32 bytes
>>> ? ? ? ?Interrupt: pin A routed to IRQ 17
>>> ? ? ? ?Region 0: Memory at f0100000 (64-bit, non-prefetchable) [size=16K]
>>> ? ? ? ?Capabilities: [40] Power Management version 3
>>> ? ? ? ? ? ? ? ?Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
>>> ? ? ? ? ? ? ? ?Status: D0 PME-Enable- DSel=0 DScale=2 PME-
>>> ? ? ? ?Capabilities: [58] Vendor Specific Information <?>
>>> ? ? ? ?Capabilities: [e8] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
>>> ? ? ? ? ? ? ? ?Address: 0000000000000000 ?Data: 0000
>>> ? ? ? ?Capabilities: [d0] Express (v1) Endpoint, MSI 00
>>> ? ? ? ? ? ? ? ?DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
>>> ? ? ? ? ? ? ? ? ? ? ? ?ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
>>> ? ? ? ? ? ? ? ?DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
>>> ? ? ? ? ? ? ? ? ? ? ? ?RlxdOrd- ExtTag+ PhantFunc- AuxPwr- NoSnoop-
>>> ? ? ? ? ? ? ? ? ? ? ? ?MaxPayload 128 bytes, MaxReadReq 128 bytes
>>> ? ? ? ? ? ? ? ?DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend-
>>> ? ? ? ? ? ? ? ?LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <4us, L1 <64us
>>> ? ? ? ? ? ? ? ? ? ? ? ?ClockPM+ Suprise- LLActRep- BwNot-
>>> ? ? ? ? ? ? ? ?LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
>>> ? ? ? ? ? ? ? ? ? ? ? ?ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>> ? ? ? ? ? ? ? ?LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
>>> ? ? ? ?Kernel driver in use: b43-pci-bridge
>>> ? ? ? ?Kernel modules: ssb
>>> ------
>>>
>>> Do you guys know how to support this device in 2.6.31 kernel? Need I backport some code from wireless-testing? I enabled the PHY_LP config manually in 2.6.31 kernel and b43 driver recognized the hardware wifi device, but it still
>>> does not work at all.
>>>
>>> Or there is no choice but Broadcom's STA driver? I do not like such non-GPL stuff.
>>>
>>> Thanks a lot
>>> --
>>> Bryan Wu <bryan.wu@canonical.com>
>>> Kernel Developer ? ?+86.138-1617-6545 Mobile
>>> Ubuntu Kernel Team | Hardware Enablement Team
>>> Canonical Ltd. ? ? ?www.canonical.com
>>> Ubuntu - Linux for human beings | www.ubuntu.com
>>> --
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>>>
>>
>>
>


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