Date: Sat, 25 Apr 2026 16:15:32 +0000 From: Enji Cooper <ngie@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: Abdelkader Boudih <freebsd@seuros.com> Subject: git: a0d44a70bae8 - stable/15 - asmc: add Wake-on-LAN control via sysctl Message-ID: <69ece8a4.415ec.596dede3@gitrepo.freebsd.org>
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The branch stable/15 has been updated by ngie: URL: https://cgit.FreeBSD.org/src/commit/?id=a0d44a70bae878bdcb4bf65987a5c13b5162c0a2 commit a0d44a70bae878bdcb4bf65987a5c13b5162c0a2 Author: Abdelkader Boudih <freebsd@seuros.com> AuthorDate: 2026-02-25 06:32:42 +0000 Commit: Enji Cooper <ngie@FreeBSD.org> CommitDate: 2026-04-25 16:14:50 +0000 asmc: add Wake-on-LAN control via sysctl Apple Mac systems support Wake-on-LAN from powered-off state (S5/G2) via the AUPO SMC key. This change adds a convenience sysctl, `dev.asmc.0.wol`. This can be disabled if set to 0 and enabled if set to 1. The AUPO key is volatile and resets to 0x00 on every boot, so WoL must be manually enabled before each shutdown to work from powered-off state. Users need to run: `sysctl dev.asmc.0.wol=1` before shutting down the system. The sysctl is best set to persist in `/etc/sysctl.conf`. MFC after: 1 week Reviewed By: markj, ngie Differential Revision: https://reviews.freebsd.org/D54439 (cherry picked from commit 94db365042d35ff7e3ee7365a87a89bab1560030) --- sys/dev/asmc/asmc.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ sys/dev/asmc/asmcvar.h | 5 +++++ 2 files changed, 50 insertions(+) diff --git a/sys/dev/asmc/asmc.c b/sys/dev/asmc/asmc.c index cdaf5d0f45eb..1623d2d9bf98 100644 --- a/sys/dev/asmc/asmc.c +++ b/sys/dev/asmc/asmc.c @@ -108,6 +108,7 @@ static int asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS); static int asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS); static int asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS); static int asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS); +static int asmc_wol_sysctl(SYSCTL_HANDLER_ARGS); struct asmc_model { const char *smc_model; /* smbios.system.product env var. */ @@ -916,9 +917,12 @@ static int asmc_init(device_t dev) { struct asmc_softc *sc = device_get_softc(dev); + struct sysctl_ctx_list *sysctlctx; int i, error = 1; uint8_t buf[4]; + sysctlctx = device_get_sysctl_ctx(dev); + if (sc->sc_model->smc_sms_x == NULL) goto nosms; @@ -988,6 +992,16 @@ asmc_init(device_t dev) out: asmc_sms_calibrate(dev); nosms: + /* Wake-on-LAN convenience sysctl */ + if (asmc_key_read(dev, ASMC_KEY_AUPO, buf, 1) == 0) { + SYSCTL_ADD_PROC(sysctlctx, + SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), + OID_AUTO, "wol", + CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, + dev, 0, asmc_wol_sysctl, "I", + "Wake-on-LAN enable (0=off, 1=on)"); + } + sc->sc_nfan = asmc_fan_count(dev); if (sc->sc_nfan > ASMC_MAXFANS) { device_printf(dev, "more than %d fans were detected. Please " @@ -1742,3 +1756,34 @@ asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) return (error); } + +/* + * Wake-on-LAN convenience sysctl. + * Reading returns 1 if WoL is enabled, 0 if disabled. + * Writing 1 enables WoL, 0 disables it. + */ +static int +asmc_wol_sysctl(SYSCTL_HANDLER_ARGS) +{ + device_t dev = (device_t)arg1; + uint8_t aupo; + int val, error; + + /* Read current AUPO value */ + if (asmc_key_read(dev, ASMC_KEY_AUPO, &aupo, 1) != 0) + return (EIO); + + val = (aupo != 0) ? 1 : 0; + error = sysctl_handle_int(oidp, &val, 0, req); + if (error != 0 || req->newptr == NULL) + return (error); + + /* Clamp to 0 or 1 */ + aupo = (val != 0) ? 1 : 0; + + /* Write AUPO */ + if (asmc_key_write(dev, ASMC_KEY_AUPO, &aupo, 1) != 0) + return (EIO); + + return (0); +} diff --git a/sys/dev/asmc/asmcvar.h b/sys/dev/asmc/asmcvar.h index 102bee8a15b7..602f363594b9 100644 --- a/sys/dev/asmc/asmcvar.h +++ b/sys/dev/asmc/asmcvar.h @@ -125,6 +125,11 @@ struct asmc_softc { */ #define ASMC_KEY_CLAMSHELL "MSLD" /* RO; 1 byte */ +/* + * Auto power on / Wake-on-LAN. + */ +#define ASMC_KEY_AUPO "AUPO" /* RW; 1 byte */ + /* * Interrupt keys. */home | help
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