Date: Tue, 25 Jun 2019 21:44:22 +0200 From: Peter Blok <pblok@bsd4all.org> To: Maverick Kuo <maverick.kuo@gmail.com> Cc: freebsd-arm@freebsd.org Subject: Re: User space interface for GPIO interrupts Message-ID: <454A5736-7B40-447A-8ED7-8C7A5CDE650F@bsd4all.org> In-Reply-To: <CAEKjv0D3YO8_j2NvTA9o9Wfxp=xA4eu0b=JFfLc_JoBGYB7fDw@mail.gmail.com> References: <CAEKjv0BN%2BA16AeVfb0e0COS-8FH-bsXqd5MsS65U%2BFT=EW9gmw@mail.gmail.com> <CAEKjv0D6V77RRnMhfJp13gPtwiT33SdVnN==WN6Mb4Q6htrOpQ@mail.gmail.com> <CAEKjv0D3YO8_j2NvTA9o9Wfxp=xA4eu0b=JFfLc_JoBGYB7fDw@mail.gmail.com>
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[-- Attachment #1 --] Hi Chris, Do you have an example or any documentation how to use kqueue with interrupts? Peter > On 3 Jun 2019, at 11:46, Maverick Kuo <maverick.kuo@gmail.com> wrote: > > Sorry, I got it wrong, gpio interrupt is really available, BUT I forgot, I > have a patched from https://github.com/ckraemer/freebsd/tree/gsoc2018 > > Just after the comparison was revised, I found out that I apologize again. > > Regards, > Chris > > Maverick Kuo <maverick.kuo@gmail.com> 於 2019年6月3日 週一 下午4:00寫道： > >> Hi, >> >> Good News !! >> >> after cvs to 12.0-STABLE #0 r348527M GPIO Interrupt with kqueue Works !!! >> >> Thanks to the developers :) >> >> Regards, >> Chris >> >> Maverick Kuo <maverick.kuo@gmail.com> 於 2019年6月3日 週一 下午2:56寫道： >> >>> Hi, >>> >>> i am running 12.0-STABLE r348448 arm64 on raspberry pi3 b+. >>> >>> Look at the kernel and it seems that all the functions related to gpio >>> interrupt are available. >>> >>> System startup process >>> Bcm_gpio_intr_attach =>> >>> Bus_setup_intr >>> ?? bcm_gpio_intr_bank[0,1] >>> ?? bcm_gpio_intr_internal >>> >>> It seems that BCM_GPIO_GPEDS (Event Status) will be read in the >>> bcm_gpio_intr_internal function but it is not executed there. >>> >>> am I missed that part?? >>> >>> Let users use kqueue/kevent to monitor gpio interrupt to reduce cpu load. >>> >>> Regards, >>> Chris >>> >> > _______________________________________________ > freebsd-arm@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org" [-- Attachment #2 --] 0 *H 010 `He 0 *H 0 0 l"ϫmW0 *H 01 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1=0;U4COMODO RSA Client Authentication and Secure Email CA0 180414000000Z 210413235959Z0D1 0 UNL10U Peter Blok1 0 *H pblok@bsd4all.org0"0 *H 0 O̴͚UFkڅUĈIGm2C :C<&㎎ ְk x ҃M\xiKdD<eb#ۨ>EgN YFNU5 4dȬZ T.~ qt #2^A ^|< 2G"plj84I(ARٝ*WHPdvKۑsY,pyM/ٔUاO)`nj90sn%ԛ 00 U #0la| =+qH^ċ0 U \Yx%Z&?^0U 0 U 0 0 U %0++0FU ?0=0; +10+0)+ https://secure.comodo.net/CPS0ZU S0Q0OMKIhttp://crl.comodoca.com/COMODORSAClientAuthenticationandSecureEmailCA.crl0+0}0U+0Ihttp://crt.comodoca.com/COMODORSAClientAuthenticationandSecureEmailCA.crt0$+0http://ocsp.comodoca.com0 *H e5pm| Z3"2pgX*<θ QD0 .1 TFu3Bq ϙ}')uao."YTcR a8yv4>Yv;?K(Z7?kNZY6o0,0=։ ϣK _yv6c]R3ѵrʀNξK)k ?bD'vnoDkRO3{$H 4uD!10001 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1=0;U4COMODO RSA Client Authentication and Secure Email CA l"ϫmW0 `He 0 *H 1 *H 0 *H 1 190625194423Z0/ *H 1" lQK RNFW/+0 +71001 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1=0;U4COMODO RSA Client Authentication and Secure Email CA l"ϫmW0 *H 101 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1=0;U4COMODO RSA Client Authentication and Secure Email CA l"ϫmW0 *H ~4\JI =a,NMR`PT_j3xP9f5# xWtd;X" ='`YLQ"0O!F82[! B 9Ts ~w,}pbuQn=EH:Npyp#d!&qQ)!.۠8*>v s ;Yl_k ZwU@wՅݻ"g.|&qJ_ "help
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