Re: [linux-sunxi] Firmware for Bluetooth (and wifi)

[Arend van Spriel <arend@broadcom.com>]

On 01/24/2014 05:34 PM, Hans de Goede wrote:
> Hi,
> 
> On 01/24/2014 11:25 AM, Arend van Spriel wrote:
>> On 01/23/2014 11:39 PM, Hans de Goede wrote:
>>> Hi,
>>>
>>> I've been working on updating sunxi-devel to include more
>>> recent versions if your gmac patches, as well as adding support
>>> for the wifi + bluetooth found on the cubietruck.
>>>
>>> Here is my current work on this:
>>>
>>> https://github.com/jwrdegoede/linux-sunxi/commits/sunxi-devel
>>>
>>> It is close to working, but unfortunately it does not work,
>>> here is what I get in dmesg when I modprove the module:
>>>
>>> [   99.700889] brcmfmac_sdio mmc1:0001:1: device tree node not found
>>> [  100.020984] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0:
>>> Apr 22 2013 14:50:00 version 5.90.195.89.6 FWID 01-b30a427d
>>> [  100.260948] brcmfmac: brcmf_fil_cmd_data: Failed err=-23
>>> [  100.281260] brcmfmac: brcmf_fil_cmd_data: Failed err=-23
>>> [  100.322508] usbcore: registered new interface driver brcmfmac
>>> [  160.445215] brcmfmac: brcmf_cfg80211_sched_scan_start: Scanning
>>> already: status (1)
>>> [  203.445404] brcmfmac: brcmf_cfg80211_sched_scan_start: Scanning
>>> already: status (1)
>>> [  256.445140] brcmfmac: brcmf_cfg80211_sched_scan_start: Scanning
>>> already: status (1)
>>
>> Can you enable debug logging in brcmfmac, ie. debug=0xd416 so I can have
>> a look.
> 
> I've captured a log with these flags until the first "Scanning already"
> message, you can find it here:

Hi Hans,

The log looks confusing.

[  543.512827] brcmfmac: brcmf_fweh_event_worker event ESCAN_RESULT (69)
ifidx 0 bsscfg 0 addr 02:00:00:00:00:00
[  543.512840] brcmfmac: brcmf_fweh_event_worker   version 2 flags 0
status 0 reason 0
[  543.512849] brcmutil: event payload, len=12
[  543.512860] 00000000: 0c 00 00 00 6d 00 00 00 34 12 00 00
  ....m...4...
[  543.512872] brcmfmac: brcmf_inform_bss scanned AP count (0)
[  543.512880] brcmfmac: brcmf_notify_escan_complete Enter
[  543.512891] brcmfmac: brcmf_notify_escan_complete ESCAN Completed
scan: Done
[  543.512911] brcmfmac: brcmf_fil_iovar_data_set name=mpc, len=4
[  543.512919] brcmutil: data
[  543.512928] 00000000: 01 00 00 00
  ....
[  543.512941] brcmfmac: brcmf_sdbrcm_bus_txctl Enter
[  543.512951] brcmfmac: brcmf_sdbrcm_bus_sleep Enter
[  543.513018] brcmfmac: brcmf_sdbrcm_bus_rxctl Enter

The trace messages above indicate completion of regular scan and after
that the code does:

	if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
		brcmf_dbg(SCAN, "Scan complete, probably P2P scan\n");

[  543.514758] brcmfmac: brcmf_cfg80211_sched_scan_start Enter
n_match_sets:0 n_ssids:0
[  543.514777] brcmfmac: brcmf_cfg80211_sched_scan_start: Scanning
already: status (1)

So the bit SCAN_STATUS_BUSY should be cleared, but you get this message.
That makes no sense to me or test_and_clear_bit() does something else
than I expect. Either way the scheduled scan request would be rejected
because it has 0 match_sets and ssids. Maybe this is intended to
indicate any AP is to be reported. Will look in cfg80211 whether that is
the case.

Regards,
Arend