You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
2.0 KiB
62 lines
2.0 KiB
/*
|
|
* NVRAM definitions and access functions.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef _UAPI_ASM_POWERPC_NVRAM_H
|
|
#define _UAPI_ASM_POWERPC_NVRAM_H
|
|
|
|
/* Signatures for nvram partitions */
|
|
#define NVRAM_SIG_SP 0x02 /* support processor */
|
|
#define NVRAM_SIG_OF 0x50 /* open firmware config */
|
|
#define NVRAM_SIG_FW 0x51 /* general firmware */
|
|
#define NVRAM_SIG_HW 0x52 /* hardware (VPD) */
|
|
#define NVRAM_SIG_FLIP 0x5a /* Apple flip/flop header */
|
|
#define NVRAM_SIG_APPL 0x5f /* Apple "system" (???) */
|
|
#define NVRAM_SIG_SYS 0x70 /* system env vars */
|
|
#define NVRAM_SIG_CFG 0x71 /* config data */
|
|
#define NVRAM_SIG_ELOG 0x72 /* error log */
|
|
#define NVRAM_SIG_VEND 0x7e /* vendor defined */
|
|
#define NVRAM_SIG_FREE 0x7f /* Free space */
|
|
#define NVRAM_SIG_OS 0xa0 /* OS defined */
|
|
#define NVRAM_SIG_PANIC 0xa1 /* Apple OSX "panic" */
|
|
|
|
|
|
/* PowerMac specific nvram stuffs */
|
|
|
|
enum {
|
|
pmac_nvram_OF, /* Open Firmware partition */
|
|
pmac_nvram_XPRAM, /* MacOS XPRAM partition */
|
|
pmac_nvram_NR /* MacOS Name Registry partition */
|
|
};
|
|
|
|
|
|
/* Some offsets in XPRAM */
|
|
#define PMAC_XPRAM_MACHINE_LOC 0xe4
|
|
#define PMAC_XPRAM_SOUND_VOLUME 0x08
|
|
|
|
/* Machine location structure in PowerMac XPRAM */
|
|
struct pmac_machine_location {
|
|
unsigned int latitude; /* 2+30 bit Fractional number */
|
|
unsigned int longitude; /* 2+30 bit Fractional number */
|
|
unsigned int delta; /* mix of GMT delta and DLS */
|
|
};
|
|
|
|
/*
|
|
* /dev/nvram ioctls
|
|
*
|
|
* Note that PMAC_NVRAM_GET_OFFSET is still supported, but is
|
|
* definitely obsolete. Do not use it if you can avoid it
|
|
*/
|
|
|
|
#define OBSOLETE_PMAC_NVRAM_GET_OFFSET \
|
|
_IOWR('p', 0x40, int)
|
|
|
|
#define IOC_NVRAM_GET_OFFSET _IOWR('p', 0x42, int) /* Get NVRAM partition offset */
|
|
#define IOC_NVRAM_SYNC _IO('p', 0x43) /* Sync NVRAM image */
|
|
|
|
#endif /* _UAPI_ASM_POWERPC_NVRAM_H */
|
|
|