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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2000, 2001, 2002 Broadcom Corporation
*/
/*
* Broadcom Common Firmware Environment (CFE)
*
* This file contains declarations for doing callbacks to
* cfe from an application. It should be the only header
* needed by the application to use this library
*
* Authors: Mitch Lichtenberg, Chris Demetriou
*/
#ifndef CFE_API_H
#define CFE_API_H
#include <linux/types.h>
#include <linux/string.h>
typedef long intptr_t;
/*
* Constants
*/
/* Seal indicating CFE's presence, passed to user program. */
#define CFE_EPTSEAL 0x43464531
#define CFE_MI_RESERVED 0 /* memory is reserved, do not use */
#define CFE_MI_AVAILABLE 1 /* memory is available */
#define CFE_FLG_WARMSTART 0x00000001
#define CFE_FLG_FULL_ARENA 0x00000001
#define CFE_FLG_ENV_PERMANENT 0x00000001
#define CFE_CPU_CMD_START 1
#define CFE_CPU_CMD_STOP 0
#define CFE_STDHANDLE_CONSOLE 0
#define CFE_DEV_NETWORK 1
#define CFE_DEV_DISK 2
#define CFE_DEV_FLASH 3
#define CFE_DEV_SERIAL 4
#define CFE_DEV_CPU 5
#define CFE_DEV_NVRAM 6
#define CFE_DEV_CLOCK 7
#define CFE_DEV_OTHER 8
#define CFE_DEV_MASK 0x0F
#define CFE_CACHE_FLUSH_D 1
#define CFE_CACHE_INVAL_I 2
#define CFE_CACHE_INVAL_D 4
#define CFE_CACHE_INVAL_L2 8
#define CFE_FWI_64BIT 0x00000001
#define CFE_FWI_32BIT 0x00000002
#define CFE_FWI_RELOC 0x00000004
#define CFE_FWI_UNCACHED 0x00000008
#define CFE_FWI_MULTICPU 0x00000010
#define CFE_FWI_FUNCSIM 0x00000020
#define CFE_FWI_RTLSIM 0x00000040
typedef struct {
int64_t fwi_version; /* major, minor, eco version */
int64_t fwi_totalmem; /* total installed mem */
int64_t fwi_flags; /* various flags */
int64_t fwi_boardid; /* board ID */
int64_t fwi_bootarea_va; /* VA of boot area */
int64_t fwi_bootarea_pa; /* PA of boot area */
int64_t fwi_bootarea_size; /* size of boot area */
} cfe_fwinfo_t;
/*
* Defines and prototypes for functions which take no arguments.
*/
int64_t cfe_getticks(void);
/*
* Defines and prototypes for the rest of the functions.
*/
int cfe_close(int handle);
int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1);
int cfe_cpu_stop(int cpu);
int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen);
int cfe_enummem(int idx, int flags, uint64_t * start, uint64_t * length,
uint64_t * type);
int cfe_exit(int warm, int status);
int cfe_flushcache(int flg);
int cfe_getdevinfo(char *name);
int cfe_getenv(char *name, char *dest, int destlen);
int cfe_getfwinfo(cfe_fwinfo_t * info);
int cfe_getstdhandle(int flg);
int cfe_init(uint64_t handle, uint64_t ept);
int cfe_inpstat(int handle);
int cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer,
int length, int *retlen, uint64_t offset);
int cfe_open(char *name);
int cfe_read(int handle, unsigned char *buffer, int length);
int cfe_readblk(int handle, int64_t offset, unsigned char *buffer,
int length);
int cfe_setenv(char *name, char *val);
int cfe_write(int handle, const char *buffer, int length);
int cfe_writeblk(int handle, int64_t offset, const char *buffer,
int length);
#endif /* CFE_API_H */
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