AW: Bluetooth with full AMP

AW: Bluetooth with full AMP

[Viswanatham, RaviTeja]

-----Urspr=FCngliche Nachricht-----
Von: linux-bluetooth-owner@vger.kernel.org [mailto:linux-bluetooth-owner@vg=
er.kernel.org] Im Auftrag von Andrei Emeltchenko
Gesendet: Dienstag, 11. Februar 2014 08:13
An: Marcel Holtmann
Cc: Viswanatham, RaviTeja; bluez mailin list (linux-bluetooth@vger.kernel.o=
rg)
Betreff: Re:=20

Hi All,

On Mon, Feb 10, 2014 at 10:35:24AM -0800, Marcel Holtmann wrote:
> Hi Ravi,
>=20
> > I am working on Ubuntu 12.04 with a Bluetooth 3.0 +HS + wifi combo=20
> > USB dongle.
> >=20
> > I want to reach a data transfer speed of up to 24 Mbit/s.=20
> >=20
> > My Questions: Does Bluez support high speed data transfer rates up=20
> > to
> > 24 Mbit/s (Bluetooth 3.0+HS) ?=20
> >=20
> > If it does, is there any user configuration involved to achieve that?
> > What other requirements need to be met?  Does, Bluetooth enables AMP=20
> > function to communicate 802.11n channel to support high speed or it=20
> > has to be configure with any other drivers?
> >=20
> > I am new to Linux a detail explanation would be really appreciated.
> > Thank you in advance for your support.
>=20
> we do support Bluetooth HS operation. However your WiFi device needs=20
> to be exposed as AMP Controller. Most WiFi hardware needs a special=20
> driver to expose itself as AMP Controller. There is no generic driver=20
> for
> mac80211 subsystem in the kernel.

Some devices have AMP Controller implemented in firmware.
I was using Marvell SD8787, probably newer Marvell devices also works.

You may check drivers/bluetooth/btmrvl_main.c to see how HCI dev_type HCI_A=
MP is assigned.

Best regards
Andrei Emeltchenko=20

Hello Andrei Emelchenko,

Thanks for replying me. I would like to know some more information about th=
e Bluetooth dongle. As you said the Marvell SD8787 is kind of a SoC chipset=
. Is there any USB Bluetooth  device available in the market which supports=
 out of the box.  I am running 3.11 kernel and I already build the Marvell =
option inside the kernel.=20

Is there any dongles available in the market which supports full AMP. If no=
t are there any other possibilities to fix the Marvell driver with the exis=
ting dongle. Please any hints as I am working on ARM board I need to fix th=
e USB Bluetooth device which can transfer with high speed.=20

Thanks in advance.=20

Regards,
Raviteja=20



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Re: Bluetooth with full AMP

[Andrei Emeltchenko]

Hi Raviteja,

> On Mon, Feb 10, 2014 at 10:35:24AM -0800, Marcel Holtmann wrote:
> > Hi Ravi,
> > 
> > > I am working on Ubuntu 12.04 with a Bluetooth 3.0 +HS + wifi combo 
> > > USB dongle.
> > > 
> > > I want to reach a data transfer speed of up to 24 Mbit/s. 
> > > 
> > > My Questions: Does Bluez support high speed data transfer rates up 
> > > to
> > > 24 Mbit/s (Bluetooth 3.0+HS) ? 
> > > 
> > > If it does, is there any user configuration involved to achieve that?
> > > What other requirements need to be met?  Does, Bluetooth enables AMP 
> > > function to communicate 802.11n channel to support high speed or it 
> > > has to be configure with any other drivers?
> > > 
> > > I am new to Linux a detail explanation would be really appreciated.
> > > Thank you in advance for your support.
> > 
> > we do support Bluetooth HS operation. However your WiFi device needs 
> > to be exposed as AMP Controller. Most WiFi hardware needs a special 
> > driver to expose itself as AMP Controller. There is no generic driver
> > for mac80211 subsystem in the kernel.
> 
> Some devices have AMP Controller implemented in firmware.  I was using
> Marvell SD8787, probably newer Marvell devices also works.
> 
> You may check drivers/bluetooth/btmrvl_main.c to see how HCI dev_type
> HCI_AMP is assigned.
> 
> Thanks for replying me. I would like to know some more information about
> the Bluetooth dongle. As you said the Marvell SD8787 is kind of a SoC
> chipset. Is there any USB Bluetooth  device available in the market
> which supports out of the box.  

The only possibility I know is Marvell development board like:
http://avnetexpress.avnet.com/store/em/EMController/Development-Kits/Marvell/RD-88W-SD-8787-A0/_/R-10001817/A-10001817/An-0?action=part&catalogId=500201&langId=-1&storeId=500201


> I am running 3.11 kernel and I already
> build the Marvell option inside the kernel. 
> 
> Is there any dongles available in the market which supports full AMP. 

At least I couldn't find one. If you find it let us know ;)

> If
> not are there any other possibilities to fix the Marvell driver with the
> existing dongle. Please any hints as I am working on ARM board I need to
> fix the USB Bluetooth device which can transfer with high speed. 
> 

Try to contact Marvell and ask which one supports FullAMP.

Best regards 
Andrei Emeltchenko 

AW: Bluetooth with full AMP

[Viswanatham, RaviTeja]

-----Urspr=FCngliche Nachricht-----
Von: linux-bluetooth-owner@vger.kernel.org [mailto:linux-bluetooth-owner@vg=
er.kernel.org] Im Auftrag von Andrei Emeltchenko
Gesendet: Dienstag, 11. Februar 2014 13:27
An: Viswanatham, RaviTeja
Cc: Marcel Holtmann; bluez mailin list (linux-bluetooth@vger.kernel.org); b=
zhao@marvell.com
Betreff: Re: Bluetooth with full AMP

Hi Raviteja,

> On Mon, Feb 10, 2014 at 10:35:24AM -0800, Marcel Holtmann wrote:
> > Hi Ravi,
> >=20
> > > I am working on Ubuntu 12.04 with a Bluetooth 3.0 +HS + wifi combo=20
> > > USB dongle.
> > >=20
> > > I want to reach a data transfer speed of up to 24 Mbit/s.=20
> > >=20
> > > My Questions: Does Bluez support high speed data transfer rates up=20
> > > to
> > > 24 Mbit/s (Bluetooth 3.0+HS) ?=20
> > >=20
> > > If it does, is there any user configuration involved to achieve that?
> > > What other requirements need to be met?  Does, Bluetooth enables=20
> > > AMP function to communicate 802.11n channel to support high speed=20
> > > or it has to be configure with any other drivers?
> > >=20
> > > I am new to Linux a detail explanation would be really appreciated.
> > > Thank you in advance for your support.
> >=20
> > we do support Bluetooth HS operation. However your WiFi device needs=20
> > to be exposed as AMP Controller. Most WiFi hardware needs a special=20
> > driver to expose itself as AMP Controller. There is no generic=20
> > driver for mac80211 subsystem in the kernel.
>=20
> Some devices have AMP Controller implemented in firmware.  I was using=20
> Marvell SD8787, probably newer Marvell devices also works.
>=20
> You may check drivers/bluetooth/btmrvl_main.c to see how HCI dev_type=20
> HCI_AMP is assigned.
>=20
> Thanks for replying me. I would like to know some more information=20
> about the Bluetooth dongle. As you said the Marvell SD8787 is kind of=20
> a SoC chipset. Is there any USB Bluetooth  device available in the=20
> market which supports out of the box.

The only possibility I know is Marvell development board like:
http://avnetexpress.avnet.com/store/em/EMController/Development-Kits/Marvel=
l/RD-88W-SD-8787-A0/_/R-10001817/A-10001817/An-0?action=3Dpart&catalogId=3D=
500201&langId=3D-1&storeId=3D500201


> I am running 3.11 kernel and I already build the Marvell option inside=20
> the kernel.
>=20
> Is there any dongles available in the market which supports full AMP.=20

At least I couldn't find one. If you find it let us know ;)

> If
> not are there any other possibilities to fix the Marvell driver with=20
> the existing dongle. Please any hints as I am working on ARM board I=20
> need to fix the USB Bluetooth device which can transfer with high speed.
>=20

Try to contact Marvell and ask which one supports FullAMP.

Thanks for the reply. I will try to find out about the hardware while conta=
cting Marvell. :)

I bought a USB Bluetooth 3.0 HS + wlan combo dongle. The wlan driver is bas=
ed on realtek8192cu  in the mailing list they mentioned it is based on soft=
 AMP. I found that the realtek they didn't upgrade new driver which support=
s new kernel (3.11 and above). =20

As I understood that Marvell they developed the driver with the FullAMP so =
that the device can run  with high speed. In the same way is there any othe=
r possibilities drivers or else patches available. Any suggestion or hint c=
ould be really appreciated.=20

Thanks in advance,
=20
Regards,
Raviteja