2017-03-01 18:14 GMT+01:00 Stefan Schmidt <stefan@xxxxxxxxxxxxxxx>: > Hello. > > On 02/17/2017 12:05 PM, Xue Liu wrote: >> >> Hello Johann, >> >> 2017-02-16 16:55 GMT+01:00 Johann Fischer <johann_fischer@xxxxxxxxx>: >>> >>> Hi Xue, >>> >>>> Now I am working on a driver for MCR20A radio chip from NXP. This chip >>>> has a special feature: support two PAN networks. It means it can >>>> operate on two different or the same channels with different PAN IDs, >>>> short addresses and extended addresses. I suppose to add two 802.15.4 >>>> interfaces for this feature. And I have two questions: >>>> >>>> 1. how to add 802.15.4 devices ? Call ieee802154_register_hw() twice >>>> with different struct ieee802154_hw ? >>>> >>>> 2. how to deal with tx and rx regarding two interfaces. >>>> >>>> Thanks. >>>> >>> >>> Dual PAN is something like nice to have. >>> I suggest initialy to implement only PAN ID 0 support. It is easier and >>> you >>> would have fewer problems with the sequence manager. If the driver is >>> stable >>> and tested, then you can expand it and add support for dual PAN. >>> >> I forgot to post my current work on Github. >> https://github.com/xueliu/mcr20a-linux >> >> Now it is somehow working for only one PAN. Now I am cleaning it and >> testing other functions. > > > Nice, so you have something already. > > I agree with Johann here that getting a basic driver in (without dual PAN > support) makes most sense. This will allow us to get the driver reviewed and > mainlined to have basic hardware support working. Once that is done more > exotic features like dual PAN can be supported. > This approach will also make sure that you are not stuck alone with this for > ages. :) OK. I upload my dirty code to https://github.com/xueliu/mcr20a-linux. It is working but I need more tests and clean. > > Might I ask what kind of hardware you are working with? Is there a board > running Linux with this transceiver hooked up directly or are you using a > off the shelf module with the MCR20A and attached it over SPI and GPIOs to a > board you are working with? I am working with Raspberry Pi 3, a Arduino shiled and FRDM-CR20A. > > A cheap and easy to order source for a a MCR20A module would be appreciated. > The only board I found was the Freedom Development Board for MCR20A at > Mouser for 84 EUR which looks expensive for the transceiver and some led and > buttons only. > Truly, this board costs 95,85 EUR with VAT. As far as I know there is no alternative board. > regards > Stefan Schmidt -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
