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Re: [RFC][PATCH] b43: LP-PHY: always adjust gain table on channel switch

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On 02/05/2010 12:46 PM, Gábor Stefanik wrote:
> On Fri, Feb 5, 2010 at 7:09 PM, Larry Finger <Larry.Finger@xxxxxxxxxxxx> wrote:
>> On 02/05/2010 10:41 AM, Gábor Stefanik wrote:
>>> On Fri, Feb 5, 2010 at 4:24 AM, Larry Finger <Larry.Finger@xxxxxxxxxxxx> wrote:
>>>> On 02/04/2010 02:57 PM, Rafał Miłecki wrote:
>>>>> ---
>>>>> Gábor: I think you missed specs here. Could you check whole routine just for
>>>>> sure, please? I don't understand whole radio and chanspec magic yet.
>>>>> ---
>>>>>  drivers/net/wireless/b43/phy_lp.c |    2 +-
>>>>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>>>>
>>>>> diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c
>>>>> index 185219e..61009ee 100644
>>>>> --- a/drivers/net/wireless/b43/phy_lp.c
>>>>> +++ b/drivers/net/wireless/b43/phy_lp.c
>>>>> @@ -2655,8 +2655,8 @@ static int b43_lpphy_op_switch_channel(struct b43_wldev *dev,
>>>>>               if (err)
>>>>>                       return err;
>>>>>               lpphy_set_analog_filter(dev, new_channel);
>>>>> -             lpphy_adjust_gain_table(dev, channel2freq_lp(new_channel));
>>>>>       }
>>>>> +     lpphy_adjust_gain_table(dev, channel2freq_lp(new_channel));
>>>>>
>>>>>       lpphy->channel = new_channel;
>>>>>       b43_write16(dev, B43_MMIO_CHANNEL, new_channel);
>>>>
>>>> Both the lpphy_set_analog_filter() and lpphy_adjust_gain_table() calls should be
>>>> outside the if statement. I changed the spec a little. It used to test "radio
>>>> enabled", but I have found that is always true for our driver.
>>>>
>>>> Larry
>>>>
>>>>
>>>
>>> Isn't set_analog_filter() rev0/1-specific?
>>
>> It was in the 4.174.64.19 driver that I RE'd when you wrote the LP PHY code.
>> That as changed in 5.10.56.46, which I am now doing. It will take me a while to
>> complete the new routine "LP PHY TX Filter Init" and a routine that it calls.
>>
>> Certainly, there is no hurry that these changes be made. Whenever you or Rafał
>> have time. There is no guarantee that these changes will have any effect on the
>> LP PHY operations. Hitting a moving target is not easy.
>>
>> Larry
>>
> 
> Just out of curiosity, is 5.10.56.46 available anywhere (for firmware reasons)?

I'm not sure what the driver version is, but a file with 508 ucode dated 6/26/09
is found at:

http://www.linksysbycisco.com/gpl/wrt610n_v2.00.00.05_us.tar.gz

The binaries are in directory wrt610n_v2.00.00.05_us/release/src/wl/linux/. I
used Daniel Lenski's script names b43_fwcutter.py can extract the firmware from
wl_apsta.o. Included are ucode_2w20 - Rev 20 802.11 cores have an SSLPN PHY.

I'm still looking for a file with 5XX firmware that is not a huge download. This
file contains everything needed to build the firmware for a WRT610N AP and is
356 MB. If anyone knows of a smaller file, please let me know.

Larry
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