2011-07-15 03:40:15

by Hao Han

Subject: Looking for tuning beacon interval on BCM4329

Dear All,

Using BCM4329 driver, my Nexus One can serve in AP mode with default
beacon interval of 100ms. I am really hoping to be able to tuning such
a value for some tests. After downloading and searching the source
code from

http://android.git.kernel.org/?p=kernel/msm.git;a=tree;f=drivers/net/wireless/bcm4329;h=01f09252ff9b80379e6db6dbb22af4fcba004982;hb=HEAD

I cannot find any place where the default value of beacon interval is
assgined to 100ms. All beacon related lines are parsed in the
following

./include/wlioctl.h:98: uint16 beacon_period;
./include/wlioctl.h:966:#define VNDR_IE_BEACON_FLAG 0x1
./include/wlioctl.h:1103: uint32 rxbeaconmbss;
./include/wlioctl.h:1105: uint32 rxbeaconobss;
./include/proto/802.11.h:86:#define DOT11_MIN_BEACON_PERIOD 1
./include/proto/802.11.h:87:#define DOT11_MAX_BEACON_PERIOD 0xFFFF
./include/proto/802.11.h:224: uint16 beacon_interval;
./include/proto/802.11.h:746:#define FC_SUBTYPE_BEACON 8
./include/proto/802.11.h:802:#define FC_BEACON FC_KIND(FC_TYPE_MNG,
FC_SUBTYPE_BEACON)
./include/proto/802.11.h:862:#define DOT11_MNG_BEACON_INT_LEN 2
./include/proto/bcmevent.h:92:#define WLC_E_BEACON_RX 15
./dhd_common.c:548: {WLC_E_BEACON_RX, "BEACON_RX"},
./dhd_common.c:693: case WLC_E_BEACON_RX:
./dhd_common.c:1311: uint32 listen_interval = LISTEN_INTERVAL; /*
Default Listen Interval in Beacons */
./dhd_common.c:1398: /* Setup timeout if Beacons are lost and roam is
off to report link down */
./wl_iw.c:8022: wstats->miss.beacon = 0;

Any feedback would be extremely appreciated :)

Thanks,
Hao

2011-07-20 17:29:37

by Franky Lin

Subject: Re: Looking for tuning beacon interval on BCM4329

On 7/14/2011 8:40:14 PM, Hao Han <[email protected]> wrote:
> Dear All,
>
> Using BCM4329 driver, my Nexus One can serve in AP mode with default
> beacon interval of 100ms. I am really hoping to be able to tuning such
> a value for some tests. After downloading and searching the source
> code from
>
> http://android.git.kernel.org/?p=kernel/msm.git;a=tree;f=drivers/net/wireless/bcm4329;h=01f09252ff9b80379e6db6dbb22af4fcba004982;hb=HEAD
>
> I cannot find any place where the default value of beacon interval is
> assgined to 100ms. All beacon related lines are parsed in the
> following
>
> ./include/wlioctl.h:98: uint16 beacon_period;
> ./include/wlioctl.h:966:#define VNDR_IE_BEACON_FLAG 0x1
> ./include/wlioctl.h:1103: uint32 rxbeaconmbss;
> ./include/wlioctl.h:1105: uint32 rxbeaconobss;
> ./include/proto/802.11.h:86:#define DOT11_MIN_BEACON_PERIOD 1
> ./include/proto/802.11.h:87:#define DOT11_MAX_BEACON_PERIOD 0xFFFF
> ./include/proto/802.11.h:224: uint16 beacon_interval;
> ./include/proto/802.11.h:746:#define FC_SUBTYPE_BEACON 8
> ./include/proto/802.11.h:802:#define FC_BEACON FC_KIND(FC_TYPE_MNG,
> FC_SUBTYPE_BEACON)
> ./include/proto/802.11.h:862:#define DOT11_MNG_BEACON_INT_LEN 2
> ./include/proto/bcmevent.h:92:#define WLC_E_BEACON_RX 15
> ./dhd_common.c:548: {WLC_E_BEACON_RX, "BEACON_RX"},
> ./dhd_common.c:693: case WLC_E_BEACON_RX:
> ./dhd_common.c:1311: uint32 listen_interval = LISTEN_INTERVAL; /*
> Default Listen Interval in Beacons */
> ./dhd_common.c:1398: /* Setup timeout if Beacons are lost and roam is
> off to report link down */
> ./wl_iw.c:8022: wstats->miss.beacon = 0;
>
> Any feedback would be extremely appreciated :)

Hi Hao,

I am afraid there is no interface exposed for the configuration of
beacon interval.

BRs
Franky