v01d opened a new issue #864: URL: https://github.com/apache/mynewt-nimble/issues/864
I'm experimenting with porting nimBLE to NuttX. We're in the process of completing a Linux-like socket interface via BTPROTO_HCI and BTPROTO_L2CAP. There's already a host layer on NuttX but I would like to try nimBLE as it already supports Linux and it shouldn't be much harder to support. I'm finding some issues that I wanted to mention, not sure if these are possibles areas of improvement of nimBLE or I'm simply not fully understanding how to do the port (I couldn't find any documentation). For starters, I copied linux/ in npl/ and modified it to suit NuttX. As it is mostly Linux compatible, no big changes are needed. However one issue I find is that NuttX requires an initial include in every .c and .h as: `#include <nuttx/config.h>` which holds the output of the Kconfig configuration system. For the OS specific files in npl/ I can add this include, but for the rest of the code I would have to manually insert it everywhere. I imagine one way would be to extend the porting layer to have a header which would be included everywhere in nimBLE where I could add this include ([LVGL](https://github.com/littlevgl/lvgl) for example does it this way). Another issue I find is there there are some macros which are not defined anywhere in nimBLE repo. For now I found (but I think there are many others): * NIMBLE_CFG_CONTROLLER * OS_CFG_ALIGN_4 * OS_CFG_ALIGNMENT * BLE_LL_CFG_FEAT_LL_PRIVACY * LOG_LEVEL_* I'm sensing that there should be some configuration process for the port which defines these but it does not appear to be part of this repo (maybe done in mynewt repo?) I also started by attempting to build the linux "test" applications but it failed due to `ble_npl_eventq_run` not being declared. Maybe this test is not maintained? If you don't think it is reasonable to spend time trying to build this test I can skip it. I was now moving on to trying to build the linux "example". One final question: in Linux there's BTPROTO_L2CAP and on NuttX we're following the same path of exposing L2CAP over a socket. I see nimBLE only uses the HCI socket and solves L2CAP on its own. Is there any plan to make this optional and have BTPROTO_L2CAP sockets supported? This would not only better integrate nimble with NuttX but also Linux IMHO. That's it so far. If you could give me some points on the porting process it would really be helpful. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
