diff options
Diffstat (limited to 'sys/arch/amd64/stand/efiboot/efiboot.c')
| -rw-r--r-- | sys/arch/amd64/stand/efiboot/efiboot.c | 74 |
1 files changed, 72 insertions, 2 deletions
diff --git a/sys/arch/amd64/stand/efiboot/efiboot.c b/sys/arch/amd64/stand/efiboot/efiboot.c index 95cf92d298d..b4ff8576201 100644 --- a/sys/arch/amd64/stand/efiboot/efiboot.c +++ b/sys/arch/amd64/stand/efiboot/efiboot.c @@ -1,4 +1,4 @@ -/* $OpenBSD: efiboot.c,v 1.41 2023/01/02 22:41:17 kettenis Exp $ */ +/* $OpenBSD: efiboot.c,v 1.42 2024/04/25 18:31:49 kn Exp $ */ /* * Copyright (c) 2015 YASUOKA Masahiko <yasuoka@yasuoka.net> @@ -1078,17 +1078,69 @@ u_int sleep(u_int i) { time_t t; + u_int intr = 0; /* * Loop for the requested number of seconds, polling, * so that it may handle interrupts. */ - for (t = getsecs() + i; getsecs() < t; cnischar()) + for (t = getsecs() + i; intr == 0 && getsecs() < t; intr = cnischar()) ; + return intr; +} + +#ifdef IDLE_POWEROFF +CHAR16 *idle_name = L"IdlePoweroff"; +EFI_STATUS idle_status; +/* randomly generated f948e8a9-0570-4338-ad10-29f4cf12849d */ +EFI_GUID openbsd_guid = { 0xf948e8a9, 0x0570, 0x4338, + { 0xad, 0x10, 0x29, 0xf4, 0xcf, 0x12, 0x84, 0x9d } }; +/* Non-Volatile, Boot Service Access, Runtime Service Access */ +UINT32 idle_attrs = 0x1 | 0x2 | 0x4; +UINT16 idle_secs; +UINTN idle_sz = sizeof(idle_secs); + +int +get_idle_timeout(void) +{ + idle_status = RS->GetVariable(idle_name, &openbsd_guid, NULL, + &idle_sz, &idle_secs); + if (idle_status != EFI_SUCCESS) { + if (idle_status != EFI_NOT_FOUND) { + printf("%s: %d\n", __func__, idle_status); + return 1; + } + return -1; + } + return 0; +} + +int +set_idle_timeout(int secs) +{ + idle_secs = secs; + idle_sz = idle_secs > 0 ? sizeof(idle_secs) : 0; + idle_status = RS->SetVariable(idle_name, &openbsd_guid, idle_attrs, + idle_sz, &idle_secs); + if (idle_status != EFI_SUCCESS) { + printf("%s: %d\n", __func__, idle_status); + return -1; + } return 0; } +/* see lib/libsa/softraid.c sr_crypto_passphrase_decrypt() */ +void +idle_poweroff(void) +{ + if (get_idle_timeout() == 0 && sleep(idle_secs) == 0) { + printf("\nno input after %us, powering off...\n", idle_secs); + Xpoweroff_efi(); + } +} +#endif /* IDLE_POWEROFF */ + /*********************************************************************** * Commands ***********************************************************************/ @@ -1173,3 +1225,21 @@ Xgop_efi(void) return (0); } + +#ifdef IDLE_POWEROFF +int +Xidle_efi(void) +{ + if (cmd.argc >= 2) { + int secs; + + secs = strtol(cmd.argv[1], NULL, 10); + if (0 <= secs && secs < UINT16_MAX) + set_idle_timeout(secs); + } else { + if (get_idle_timeout() == 0) + printf("Timeout = %us\n", idle_secs); + } + return 0; +} +#endif /* IDLE_POWEROFF */ |