arch/mips/include/asm/fw/cfe/cfe_api.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (C) 2000, 2001, 2002 Broadcom Corporation
   4  */
   5 /*
   6  * Broadcom Common Firmware Environment (CFE)
   7  *
   8  * This file contains declarations for doing callbacks to
   9  * cfe from an application.  It should be the only header
  10  * needed by the application to use this library
  11  *
  12  * Authors:  Mitch Lichtenberg, Chris Demetriou
  13  */
  14 #ifndef CFE_API_H
  15 #define CFE_API_H
  16
  17 #include <linux/types.h>
  18 #include <linux/string.h>
  19
  20 typedef long intptr_t;
  21
  22
  23 /*
  24  * Constants
  25  */
  26
  27 /* Seal indicating CFE's presence, passed to user program. */
  28 #define CFE_EPTSEAL 0x43464531
  29
  30 #define CFE_MI_RESERVED 0       /* memory is reserved, do not use */
  31 #define CFE_MI_AVAILABLE 1      /* memory is available */
  32
  33 #define CFE_FLG_WARMSTART     0x00000001
  34 #define CFE_FLG_FULL_ARENA    0x00000001
  35 #define CFE_FLG_ENV_PERMANENT 0x00000001
  36
  37 #define CFE_CPU_CMD_START 1
  38 #define CFE_CPU_CMD_STOP 0
  39
  40 #define CFE_STDHANDLE_CONSOLE   0
  41
  42 #define CFE_DEV_NETWORK         1
  43 #define CFE_DEV_DISK            2
  44 #define CFE_DEV_FLASH           3
  45 #define CFE_DEV_SERIAL          4
  46 #define CFE_DEV_CPU             5
  47 #define CFE_DEV_NVRAM           6
  48 #define CFE_DEV_CLOCK           7
  49 #define CFE_DEV_OTHER           8
  50 #define CFE_DEV_MASK            0x0F
  51
  52 #define CFE_CACHE_FLUSH_D       1
  53 #define CFE_CACHE_INVAL_I       2
  54 #define CFE_CACHE_INVAL_D       4
  55 #define CFE_CACHE_INVAL_L2      8
  56
  57 #define CFE_FWI_64BIT           0x00000001
  58 #define CFE_FWI_32BIT           0x00000002
  59 #define CFE_FWI_RELOC           0x00000004
  60 #define CFE_FWI_UNCACHED        0x00000008
  61 #define CFE_FWI_MULTICPU        0x00000010
  62 #define CFE_FWI_FUNCSIM         0x00000020
  63 #define CFE_FWI_RTLSIM          0x00000040
  64
  65 typedef struct {
  66         int64_t fwi_version;            /* major, minor, eco version */
  67         int64_t fwi_totalmem;           /* total installed mem */
  68         int64_t fwi_flags;              /* various flags */
  69         int64_t fwi_boardid;            /* board ID */
  70         int64_t fwi_bootarea_va;        /* VA of boot area */
  71         int64_t fwi_bootarea_pa;        /* PA of boot area */
  72         int64_t fwi_bootarea_size;      /* size of boot area */
  73 } cfe_fwinfo_t;
  74
  75
  76 /*
  77  * Defines and prototypes for functions which take no arguments.
  78  */
  79 int64_t cfe_getticks(void);
  80
  81 /*
  82  * Defines and prototypes for the rest of the functions.
  83  */
  84 int cfe_close(int handle);
  85 int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1);
  86 int cfe_cpu_stop(int cpu);
  87 int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen);
  88 int cfe_enummem(int idx, int flags, uint64_t * start, uint64_t * length,
  89                 uint64_t * type);
  90 int cfe_exit(int warm, int status);
  91 int cfe_flushcache(int flg);
  92 int cfe_getdevinfo(char *name);
  93 int cfe_getenv(char *name, char *dest, int destlen);
  94 int cfe_getfwinfo(cfe_fwinfo_t * info);
  95 int cfe_getstdhandle(int flg);
  96 int cfe_init(uint64_t handle, uint64_t ept);
  97 int cfe_inpstat(int handle);
  98 int cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer,
  99               int length, int *retlen, uint64_t offset);
 100 int cfe_open(char *name);
 101 int cfe_read(int handle, unsigned char *buffer, int length);
 102 int cfe_readblk(int handle, int64_t offset, unsigned char *buffer,
 103                 int length);
 104 int cfe_setenv(char *name, char *val);
 105 int cfe_write(int handle, const char *buffer, int length);
 106 int cfe_writeblk(int handle, int64_t offset, const char *buffer,
 107                  int length);
 108
 109 #endif                          /* CFE_API_H */