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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--Apple-Mail=_51B2FE7C-829D-4650-8309-2C4BFE12FFAE Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 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: >=20 > 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 >=20 > Just after the comparison was revised, I found out that I apologize = again. >=20 > Regards, > Chris >=20 > Maverick Kuo <maverick.kuo@gmail.com> =E6=96=BC 2019=E5=B9=B46=E6=9C=883= =E6=97=A5 =E9=80=B1=E4=B8=80 =E4=B8=8B=E5=8D=884:00=E5=AF=AB=E9=81=93=EF=BC= =9A >=20 >> Hi, >>=20 >> Good News !! >>=20 >> after cvs to 12.0-STABLE #0 r348527M GPIO Interrupt with kqueue Works = !!! >>=20 >> Thanks to the developers :) >>=20 >> Regards, >> Chris >>=20 >> Maverick Kuo <maverick.kuo@gmail.com> =E6=96=BC 2019=E5=B9=B46=E6=9C=88= 3=E6=97=A5 =E9=80=B1=E4=B8=80 =E4=B8=8B=E5=8D=882:56=E5=AF=AB=E9=81=93=EF=BC= =9A >>=20 >>> Hi, >>>=20 >>> i am running 12.0-STABLE r348448 arm64 on raspberry pi3 b+. >>>=20 >>> Look at the kernel and it seems that all the functions related to = gpio >>> interrupt are available. >>>=20 >>> System startup process >>> Bcm_gpio_intr_attach =3D>> >>> Bus_setup_intr >>> ?? bcm_gpio_intr_bank[0,1] >>> ?? bcm_gpio_intr_internal >>>=20 >>> It seems that BCM_GPIO_GPEDS (Event Status) will be read in the >>> bcm_gpio_intr_internal function but it is not executed there. >>>=20 >>> am I missed that part?? >>>=20 >>> Let users use kqueue/kevent to monitor gpio interrupt to reduce cpu = load. >>>=20 >>> Regards, >>> Chris >>>=20 >>=20 > _______________________________________________ > 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" --Apple-Mail=_51B2FE7C-829D-4650-8309-2C4BFE12FFAE Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCBSAw ggUcMIIEBKADAgECAhEAq2wFIs+rCK6H6/2jbblXhDANBgkqhkiG9w0BAQsFADCBlzELMAkGA1UE BhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UEBxMHU2FsZm9yZDEaMBgG A1UEChMRQ09NT0RPIENBIExpbWl0ZWQxPTA7BgNVBAMTNENPTU9ETyBSU0EgQ2xpZW50IEF1dGhl bnRpY2F0aW9uIGFuZCBTZWN1cmUgRW1haWwgQ0EwHhcNMTgwNDE0MDAwMDAwWhcNMjEwNDEzMjM1 OTU5WjBEMQswCQYDVQQGEwJOTDETMBEGA1UEAxMKUGV0ZXIgQmxvazEgMB4GCSqGSIb3DQEJARYR cGJsb2tAYnNkNGFsbC5vcmcwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDPT/3evs2a zLSIVepGa9qFVcSISd5HzoJt9xAyQ4od7NM6Qzwm446OyhzWsIN/a6+nDNB4AxzSg00QXKx4afEa FrdLzmREEfv24f88j2UZYqHAls0j26jyED5FZ068xs4gWZBG2U7EVTUNNJuUrrmqBNZkGxTIrFrD Cgr1EpRULpN+HrEelHHh7uR0twAjvwcyXkG9DbDJXnw8HzKGR80ik4+13HDxx4mDxOY4NOvWSSiM kEFS2Z2AKtxXSMBQZHazAUvbka27c1m93/QsjnDF+P6Aef9NEvUDL9mU9Jbf/+5V+anT2KdPGP4p rQ9gA/Nup61qxDkwc+RupiXD5NSbAgMBAAGjggGzMIIBrzAfBgNVHSMEGDAWgBSCr2yM+MX+lmF8 6B89K3FIXsSLwDAdBgNVHQ4EFgQUjwe7n1zvxFkTeCUYWrsaJpOGP14wDgYDVR0PAQH/BAQDAgWg MAwGA1UdEwEB/wQCMAAwHQYDVR0lBBYwFAYIKwYBBQUHAwQGCCsGAQUFBwMCMEYGA1UdIAQ/MD0w OwYMKwYBBAGyMQECAQMFMCswKQYIKwYBBQUHAgEWHWh0dHBzOi8vc2VjdXJlLmNvbW9kby5uZXQv Q1BTMFoGA1UdHwRTMFEwT6BNoEuGSWh0dHA6Ly9jcmwuY29tb2RvY2EuY29tL0NPTU9ET1JTQUNs aWVudEF1dGhlbnRpY2F0aW9uYW5kU2VjdXJlRW1haWxDQS5jcmwwgYsGCCsGAQUFBwEBBH8wfTBV BggrBgEFBQcwAoZJaHR0cDovL2NydC5jb21vZG9jYS5jb20vQ09NT0RPUlNBQ2xpZW50QXV0aGVu dGljYXRpb25hbmRTZWN1cmVFbWFpbENBLmNydDAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuY29t b2RvY2EuY29tMA0GCSqGSIb3DQEBCwUAA4IBAQC85hVlqTVwt218IJR/WjMiMnDtZ7hY860XKjzO uB3sUUQwHxHj+ZYuMbAfVLZGGqh1EekbwDMVgkK9cezIHM+ZzxrNGX2SJyl1YW+3FLn52P0uIlmA VPFjUowf5qBhOHl2NJo+WXYZhQY7rT/xSygE81o3oLE/A4zO6WtO3PeZpFpZNrBvizAsjTDfPeXW iQzXz6NLrgwert0Wml95ov2rG5oCzHYPijabubSNm2NdUjPRtcVylcqAThXOvp6X4UvW8/L0uhkp 9WsKP2JEJ3Zukv7Ib+vMBsdE4tf4rmv89pQC+lLpD08ze/QDCIeFBCRIihcC2PycDQrnNIp1RAIh MYIDyjCCA8YCAQEwga0wgZcxCzAJBgNVBAYTAkdCMRswGQYDVQQIExJHcmVhdGVyIE1hbmNoZXN0 ZXIxEDAOBgNVBAcTB1NhbGZvcmQxGjAYBgNVBAoTEUNPTU9ETyBDQSBMaW1pdGVkMT0wOwYDVQQD EzRDT01PRE8gUlNBIENsaWVudCBBdXRoZW50aWNhdGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBAhEA q2wFIs+rCK6H6/2jbblXhDANBglghkgBZQMEAgEFAKCCAe0wGAYJKoZIhvcNAQkDMQsGCSqGSIb3 DQEHATAcBgkqhkiG9w0BCQUxDxcNMTkwNjI1MTk0NDIzWjAvBgkqhkiG9w0BCQQxIgQgbOqEUYlL Cs/poFKiTvdGs7t/1RPvAeIIV5HumS8HK+0wgb4GCSsGAQQBgjcQBDGBsDCBrTCBlzELMAkGA1UE BhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UEBxMHU2FsZm9yZDEaMBgG A1UEChMRQ09NT0RPIENBIExpbWl0ZWQxPTA7BgNVBAMTNENPTU9ETyBSU0EgQ2xpZW50IEF1dGhl bnRpY2F0aW9uIGFuZCBTZWN1cmUgRW1haWwgQ0ECEQCrbAUiz6sIrofr/aNtuVeEMIHABgsqhkiG 9w0BCRACCzGBsKCBrTCBlzELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3Rl cjEQMA4GA1UEBxMHU2FsZm9yZDEaMBgGA1UEChMRQ09NT0RPIENBIExpbWl0ZWQxPTA7BgNVBAMT NENPTU9ETyBSU0EgQ2xpZW50IEF1dGhlbnRpY2F0aW9uIGFuZCBTZWN1cmUgRW1haWwgQ0ECEQCr bAUiz6sIrofr/aNtuVeEMA0GCSqGSIb3DQEBAQUABIIBAH40kFwP+hZKGbJJHPw94OycYf0sCE5N UmBQzORU2hRfyGoz3xF4slA5Zrs1ndUjH76aePKAV90I9q104mQ7mcVY0PgXIh89J2Aavd8EWaiF iEy5yVGAjBMi68MwGbSpTyFGpDgyp1shDULnCTlUcx8YfnfZ6Sx9B3BiBul1pVGtbj1FvZxIOuIQ vv5OcHlwnqIZu/wjnbuN7v5kIRcbFxqsJo67l3FRzwEPKSHELtugBTiDKv4TjD528dX25a4dcwk7 5lm4bPGQy1/isAFr8CAFG1oVxRN3VcABQHeusILVhRar3bsiZy60FoV8JhtxSo1fCbzb6+S8CN3y Ewu5ASIAAAAAAAA= --Apple-Mail=_51B2FE7C-829D-4650-8309-2C4BFE12FFAE--
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