Wi-Fi Bluetooth for Linux Forum Discussions

Hi All,

We use the BCM43455 chip in our product, I want to put the wifi into the test mode.

How can this be achieved in Linux?

Any response is really appreciated.

Thanks,

Asma

Hi, I have a raspberry pi 3 (B v1.2) with raspbian stretch (linux kernel 4.14). The firmware version of my chipset is 7.45.98.38 and I would like to downgrade to version 7_45_41_46 as it is the version tested to work with the nexmon (https://github.com/seemoo-lab/nexmon) patch (for my specific parameters such as rPi version, OS version). Is it possible to do this downgrade? If so, how?

For completeness I include below the relevant lines from the dmesg output:

[ 4.365253] brcmfmac: F1 signature read @0x18000000=0x1541a9a6

[ 4.371756] brcmfmac: brcmf_fw_map_chip_to_name: using brcm/brcmfmac43430-sdio.bin for chip 0x00a9a6(43430) rev 0x000001 [ 4.372048] usbcore: registered new interface driver brcmfmac

[ 4.630462] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Oct 23 2017 03:55:53 version 7.45.98.38 (r674442 CY) FWID 01-e58d219f

[ 4.631241] brcmfmac: brcmf_c_preinit_dcmds: CLM version = API: 12.2 Data: 7.11.15 Compiler: 1.24.2 ClmImport: 1.24.1 Creation: 2014-05-26 10:53:55 Inc Data: 9.10.39 Inc Compiler: 1.29.4 Inc ClmImport: 1.36.3 Creation: 2017-10-23 03:47:14

I try to bring up 1XA(cyw54591) with my own SOC, for PCIE mode, but the driver can't be installed,  looks like timeout occured, i used these files and loaded successfully.

cyfmac54591-pcie.bin

cyfmac54591-pcie.clm_blob

cyfmac54591-pcie.txt

[ 22.540267] brcmfmac: brcmf_add_if ==== pid:4b5, if:wlan%d (00:00:00:00:00:00) created ===
[ 22.548625] brcmfmac: brcmf_bus_change_state 0 -> 1
[ 22.553512] brcmfmac: brcmf_msgbuf_query_dcmd ifidx=0, cmd=262, len=20
[ 22.560060] brcmfmac: brcmf_pcie_ring_mb_write_wptr W w_ptr 17 (0), ring 0
[ 22.566931] brcmfmac: brcmf_pcie_ring_mb_ring_bell RING !
[ 24.598969] brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
[ 24.606734] brcmfmac: brcmf_fil_cmd_data Failed: BCME_NOTDOWN (-5)

ps:  there is another wifi behind another controller

We are using the CYW43012 (LBEE591LV Module) for Bluetooth in slave PCM mode not i2S mode in order to replace a now obsolete module. Therefore the CLK, DATA_IN and SYNC are all inputs to the module / chipset.

What clock edge should the data, and sync signals be sampled on please as the PCM Interface Timing Diagrams were removed in the CYW43012 datasheet (document number 002-18925 Rev *J). Does anybody know why? Is this interface / protocol not supported / not working and do we have to use the i2S configuration instead?

Hi All,

We are using CYW43012 chipset and recently moved from:
Firmware version:
1.21 RC0.0
wl0: Sep 1 2021 22:33:32 version 13.10.271.273 (9278a67 CY) FWID 01-e6c8687a
Driver Version:
Backported Linux Version v4.14.77-kong-RTM-rc8-0-ged6fa18

to

Firmware version:
1.21 RC0.0
wl0: Feb 21 2022 07:19:28 version 13.10.271.283 (211da63 CY) FWID 01-18f4ac2
Driver Version:
Backported Linux Version v5.10.9-2022_0321-0-ga0971bc0b123

We found that the DFS channel support for US country is currently disabled in the latest release where as it was working in the older release.

Old release:

root@SAMA5D2C3:~# wl ver
1.21 RC0.0
wl0: Dec 13 2019 03:35:44 version 13.10.271.227 (6ca6a80) FWID 01-396d897 tws:GENR.3.1.2
root@SAMA5D2C3:~# wl country
US (US/0) UNITED STATES
root@SAMA5D2C3:~# wl channels
36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 144 149 153 157 161 165
root@SAMA5D2C3:~# wl chan_info
Channel 36 A Band
Channel 40 A Band
Channel 44 A Band
Channel 48 A Band
Channel 52 A Band, RADAR Sensitive
Channel 56 A Band, RADAR Sensitive
Channel 60 A Band, RADAR Sensitive
Channel 64 A Band, RADAR Sensitive
Channel 100 A Band, RADAR Sensitive
Channel 104 A Band, RADAR Sensitive
Channel 108 A Band, RADAR Sensitive
Channel 112 A Band, RADAR Sensitive
Channel 116 A Band, RADAR Sensitive
Channel 120 A Band, RADAR Sensitive
Channel 124 A Band, RADAR Sensitive
Channel 128 A Band, RADAR Sensitive
Channel 132 A Band, RADAR Sensitive
Channel 136 A Band, RADAR Sensitive
Channel 140 A Band, RADAR Sensitive
Channel 144 A Band, RADAR Sensitive
Channel 149 A Band
Channel 153 A Band
Channel 157 A Band
Channel 161 A Band
Channel 165 A Band
root@SAMA5D2C3:~#

New Release:

root@SAMA5D2C3:/etc/broadcom/wifi# wl country
US (US/0) UNITED STATES
root@SAMA5D2C3:/etc/broadcom/wifi# wl channels
36 40 44 48 149 153 157 161 165
root@SAMA5D2C3:/etc/broadcom/wifi# wl chan_info
Channel 36 A Band
Channel 40 A Band
Channel 44 A Band
Channel 48 A Band
Channel 149 A Band
Channel 153 A Band
Channel 157 A Band
Channel 161 A Band
Channel 165 A Band

Using the old clm_blob file is working fine with the new release. Can you please let us know how to reenable DFS channels and any other parameters in the new release?

@raks_99 

Regards,

Rupesh

Hi All,

We are using CYW43012 chipset and recently moved from:
Firmware version:
1.21 RC0.0
wl0: Sep 1 2021 22:33:32 version 13.10.271.273 (9278a67 CY) FWID 01-e6c8687a
Driver Version:
Backported Linux Version v4.14.77-kong-RTM-rc8-0-ged6fa18

to

Firmware version:
1.21 RC0.0
wl0: Feb 21 2022 07:19:28 version 13.10.271.283 (211da63 CY) FWID 01-18f4ac2
Driver Version:
Backported Linux Version v5.10.9-2022_0321-0-ga0971bc0b123

We are seeing increase in power consumption by 20mA approximately after we upgrade the release.

We have observed that only by changing the driver the power consumption increases but not with the firmware upgrade.

We couldn't figure out what exactly caused increase in the power cosumption.

Can someone help us figure out the reason for the same as our product is an battery powered embedded device which makes it very critical for us.

Please let me know if you need any information.

@raks_99 @GauravS_31 @Vinayak 

Regards,

Rupesh

Hi Cypress Team,

We need to do Pre-compliance tests on CYW43455 module on Android 11 platform for WiFi and BT.

Could you please provide us any tools(like WL and HCITOOL in linux) to do the same for Android 11.

Also, could you provide us relevant documentation for the same.

Thanks.