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19eaf54bc9
* Add missing Linux headers. Closes #9837 * Update existing headers to latest Linux. * Consolidate headers that are the same for multiple Zig target CPU architectures. For example, Linux has only an x86 directory for both x86_64 and x86 CPU architectures. Now Zig only ships an x86 directory for Linux headers, and will emit the proper corresponding -isystem flags. * tools/update-linux-headers.zig is now available for upgrading to newer Linux headers, and the update process is now documented on the wiki.
63 lines
2.0 KiB
C
Vendored
63 lines
2.0 KiB
C
Vendored
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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/*
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* NVRAM definitions and access functions.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _ASM_POWERPC_NVRAM_H
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#define _ASM_POWERPC_NVRAM_H
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/* Signatures for nvram partitions */
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#define NVRAM_SIG_SP 0x02 /* support processor */
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#define NVRAM_SIG_OF 0x50 /* open firmware config */
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#define NVRAM_SIG_FW 0x51 /* general firmware */
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#define NVRAM_SIG_HW 0x52 /* hardware (VPD) */
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#define NVRAM_SIG_FLIP 0x5a /* Apple flip/flop header */
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#define NVRAM_SIG_APPL 0x5f /* Apple "system" (???) */
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#define NVRAM_SIG_SYS 0x70 /* system env vars */
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#define NVRAM_SIG_CFG 0x71 /* config data */
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#define NVRAM_SIG_ELOG 0x72 /* error log */
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#define NVRAM_SIG_VEND 0x7e /* vendor defined */
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#define NVRAM_SIG_FREE 0x7f /* Free space */
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#define NVRAM_SIG_OS 0xa0 /* OS defined */
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#define NVRAM_SIG_PANIC 0xa1 /* Apple OSX "panic" */
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/* PowerMac specific nvram stuffs */
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enum {
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pmac_nvram_OF, /* Open Firmware partition */
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pmac_nvram_XPRAM, /* MacOS XPRAM partition */
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pmac_nvram_NR /* MacOS Name Registry partition */
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};
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/* Some offsets in XPRAM */
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#define PMAC_XPRAM_MACHINE_LOC 0xe4
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#define PMAC_XPRAM_SOUND_VOLUME 0x08
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/* Machine location structure in PowerMac XPRAM */
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struct pmac_machine_location {
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unsigned int latitude; /* 2+30 bit Fractional number */
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unsigned int longitude; /* 2+30 bit Fractional number */
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unsigned int delta; /* mix of GMT delta and DLS */
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};
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/*
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* /dev/nvram ioctls
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*
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* Note that PMAC_NVRAM_GET_OFFSET is still supported, but is
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* definitely obsolete. Do not use it if you can avoid it
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*/
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#define OBSOLETE_PMAC_NVRAM_GET_OFFSET \
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_IOWR('p', 0x40, int)
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#define IOC_NVRAM_GET_OFFSET _IOWR('p', 0x42, int) /* Get NVRAM partition offset */
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#define IOC_NVRAM_SYNC _IO('p', 0x43) /* Sync NVRAM image */
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#endif /* _ASM_POWERPC_NVRAM_H */ |