Am 02.06.21 um 20:37 schrieb Kinsey Moore:
Hello,
From what I’ve seen of the various BSPs supported by LibBSD that have
multiple ethernet peripherals,
only one tends to be chosen and supported. I’ve encountered a situation
where the majority of platform
examples (Zynq Ultrascale+ MPSoC dev boards) use CGEM3 as the
only/primary ethernet interface and I
need to have the option of selecting a different peripheral as the
primary interface.
Unfortunately, the current configuration of LibBSD/RTEMS does not allow
for easy switching among the
available interfaces. The easy one-off option is to just create a BSP
variant with a little bit of extra logic
to select the correct interface in LibBSD, but this problem seems more
generally applicable than just
ethernet and just this one BSP. Is the best alternative to configure all
available devices in
nexus-devices.h and let LibBSD figure it out?
Thanks,
Kinsey
If the problem is with "nexus-devices.h": You can always just add
further devices or a completely own set of devices in your application.
For example it should be no problem to use
====
SYSINIT_MODULE_REFERENCE(wlan_ratectl_none);
SYSINIT_MODULE_REFERENCE(wlan_sta);
SYSINIT_MODULE_REFERENCE(wlan_amrr);
SYSINIT_MODULE_REFERENCE(wlan_wep);
SYSINIT_MODULE_REFERENCE(wlan_tkip);
SYSINIT_MODULE_REFERENCE(wlan_ccmp);
SYSINIT_DRIVER_REFERENCE(rtwn_usb, uhub);
SYSINIT_REFERENCE(rtwn_rtl8188eufw);
#define RTEMS_BSD_CONFIG_BSP_CONFIG
#define RTEMS_BSD_CONFIG_TERMIOS_KQUEUE_AND_POLL
#define RTEMS_BSD_CONFIG_INIT
#include <machine/rtems-bsd-config.h>
====
in your application to add WLAN support. You could also remove the
RTEMS_BSD_CONFIG_BSP_CONFIG (which has the effect that nexus-devices.h
is not included in the rtems-bsd-config.h) and define a different set of
modules for your application.
Best regards
Christian
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