include/asm-sparc64/openprom.h

   1 /* $Id: openprom.h,v 1.9 2001/03/16 10:22:02 davem Exp $ */
   2 #ifndef __SPARC64_OPENPROM_H
   3 #define __SPARC64_OPENPROM_H
   4
   5 /* openprom.h:  Prom structures and defines for access to the OPENBOOT
   6  *              prom routines and data areas.
   7  *
   8  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
   9  */
  10
  11 #ifndef __ASSEMBLY__
  12 /* V0 prom device operations. */
  13 struct linux_dev_v0_funcs {
  14         int (*v0_devopen)(char *device_str);
  15         int (*v0_devclose)(int dev_desc);
  16         int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
  17         int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
  18         int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf);
  19         int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf);
  20         int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
  21         int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
  22         int (*v0_seekdev)(int dev_desc, long logical_offst, int from);
  23 };
  24
  25 /* V2 and later prom device operations. */
  26 struct linux_dev_v2_funcs {
  27         int (*v2_inst2pkg)(int d);      /* Convert ihandle to phandle */
  28         char * (*v2_dumb_mem_alloc)(char *va, unsigned sz);
  29         void (*v2_dumb_mem_free)(char *va, unsigned sz);
  30
  31         /* To map devices into virtual I/O space. */
  32         char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz);
  33         void (*v2_dumb_munmap)(char *virta, unsigned size);
  34
  35         int (*v2_dev_open)(char *devpath);
  36         void (*v2_dev_close)(int d);
  37         int (*v2_dev_read)(int d, char *buf, int nbytes);
  38         int (*v2_dev_write)(int d, char *buf, int nbytes);
  39         int (*v2_dev_seek)(int d, int hi, int lo);
  40
  41         /* Never issued (multistage load support) */
  42         void (*v2_wheee2)(void);
  43         void (*v2_wheee3)(void);
  44 };
  45
  46 struct linux_mlist_v0 {
  47         struct linux_mlist_v0 *theres_more;
  48         unsigned start_adr;
  49         unsigned num_bytes;
  50 };
  51
  52 struct linux_mem_v0 {
  53         struct linux_mlist_v0 **v0_totphys;
  54         struct linux_mlist_v0 **v0_prommap;
  55         struct linux_mlist_v0 **v0_available; /* What we can use */
  56 };
  57
  58 /* Arguments sent to the kernel from the boot prompt. */
  59 struct linux_arguments_v0 {
  60         char *argv[8];
  61         char args[100];
  62         char boot_dev[2];
  63         int boot_dev_ctrl;
  64         int boot_dev_unit;
  65         int dev_partition;
  66         char *kernel_file_name;
  67         void *aieee1;           /* XXX */
  68 };
  69
  70 /* V2 and up boot things. */
  71 struct linux_bootargs_v2 {
  72         char **bootpath;
  73         char **bootargs;
  74         int *fd_stdin;
  75         int *fd_stdout;
  76 };
  77
  78 /* The top level PROM vector. */
  79 struct linux_romvec {
  80         /* Version numbers. */
  81         unsigned int pv_magic_cookie;
  82         unsigned int pv_romvers;
  83         unsigned int pv_plugin_revision;
  84         unsigned int pv_printrev;
  85
  86         /* Version 0 memory descriptors. */
  87         struct linux_mem_v0 pv_v0mem;
  88
  89         /* Node operations. */
  90         struct linux_nodeops *pv_nodeops;
  91
  92         char **pv_bootstr;
  93         struct linux_dev_v0_funcs pv_v0devops;
  94
  95         char *pv_stdin;
  96         char *pv_stdout;
  97 #define PROMDEV_KBD     0               /* input from keyboard */
  98 #define PROMDEV_SCREEN  0               /* output to screen */
  99 #define PROMDEV_TTYA    1               /* in/out to ttya */
 100 #define PROMDEV_TTYB    2               /* in/out to ttyb */
 101
 102         /* Blocking getchar/putchar.  NOT REENTRANT! (grr) */
 103         int (*pv_getchar)(void);
 104         void (*pv_putchar)(int ch);
 105
 106         /* Non-blocking variants. */
 107         int (*pv_nbgetchar)(void);
 108         int (*pv_nbputchar)(int ch);
 109
 110         void (*pv_putstr)(char *str, int len);
 111
 112         /* Miscellany. */
 113         void (*pv_reboot)(char *bootstr);
 114         void (*pv_printf)(__const__ char *fmt, ...);
 115         void (*pv_abort)(void);
 116         __volatile__ int *pv_ticks;
 117         void (*pv_halt)(void);
 118         void (**pv_synchook)(void);
 119
 120         /* Evaluate a forth string, not different proto for V0 and V2->up. */
 121         union {
 122                 void (*v0_eval)(int len, char *str);
 123                 void (*v2_eval)(char *str);
 124         } pv_fortheval;
 125
 126         struct linux_arguments_v0 **pv_v0bootargs;
 127
 128         /* Get ether address. */
 129         unsigned int (*pv_enaddr)(int d, char *enaddr);
 130
 131         struct linux_bootargs_v2 pv_v2bootargs;
 132         struct linux_dev_v2_funcs pv_v2devops;
 133
 134         int filler[15];
 135
 136         /* This one is sun4c/sun4 only. */
 137         void (*pv_setctxt)(int ctxt, char *va, int pmeg);
 138
 139         /* Prom version 3 Multiprocessor routines. This stuff is crazy.
 140          * No joke. Calling these when there is only one cpu probably
 141          * crashes the machine, have to test this. :-)
 142          */
 143
 144         /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context
 145          * 'thiscontext' executing at address 'prog_counter'
 146          */
 147         int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr,
 148                            int thiscontext, char *prog_counter);
 149
 150         /* v3_cpustop() will cause cpu 'whichcpu' to stop executing
 151          * until a resume cpu call is made.
 152          */
 153         int (*v3_cpustop)(unsigned int whichcpu);
 154
 155         /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or
 156          * resume cpu call is made.
 157          */
 158         int (*v3_cpuidle)(unsigned int whichcpu);
 159
 160         /* v3_cpuresume() will resume processor 'whichcpu' executing
 161          * starting with whatever 'pc' and 'npc' were left at the
 162          * last 'idle' or 'stop' call.
 163          */
 164         int (*v3_cpuresume)(unsigned int whichcpu);
 165 };
 166
 167 /* Routines for traversing the prom device tree. */
 168 struct linux_nodeops {
 169         int (*no_nextnode)(int node);
 170         int (*no_child)(int node);
 171         int (*no_proplen)(int node, char *name);
 172         int (*no_getprop)(int node, char *name, char *val);
 173         int (*no_setprop)(int node, char *name, char *val, int len);
 174         char * (*no_nextprop)(int node, char *name);
 175 };
 176
 177 /* More fun PROM structures for device probing. */
 178 #define PROMREG_MAX     16
 179 #define PROMVADDR_MAX   16
 180 #define PROMINTR_MAX    15
 181
 182 struct linux_prom_registers {
 183         unsigned which_io;      /* hi part of physical address                  */
 184         unsigned phys_addr;     /* The physical address of this register        */
 185         int reg_size;           /* How many bytes does this register take up?   */
 186 };
 187
 188 struct linux_prom64_registers {
 189         unsigned long phys_addr;
 190         unsigned long reg_size;
 191 };
 192
 193 struct linux_prom_irqs {
 194         int pri;    /* IRQ priority */
 195         int vector; /* This is foobar, what does it do? */
 196 };
 197
 198 /* Element of the "ranges" vector */
 199 struct linux_prom_ranges {
 200         unsigned int ot_child_space;
 201         unsigned int ot_child_base;             /* Bus feels this */
 202         unsigned int ot_parent_space;
 203         unsigned int ot_parent_base;            /* CPU looks from here */
 204         unsigned int or_size;
 205 };
 206
 207 struct linux_prom64_ranges {
 208         unsigned long ot_child_base;            /* Bus feels this */
 209         unsigned long ot_parent_base;           /* CPU looks from here */
 210         unsigned long or_size;
 211 };
 212
 213 /* Ranges and reg properties are a bit different for PCI. */
 214 struct linux_prom_pci_registers {
 215         unsigned int phys_hi;
 216         unsigned int phys_mid;
 217         unsigned int phys_lo;
 218
 219         unsigned int size_hi;
 220         unsigned int size_lo;
 221 };
 222
 223 struct linux_prom_pci_ranges {
 224         unsigned int child_phys_hi;     /* Only certain bits are encoded here. */
 225         unsigned int child_phys_mid;
 226         unsigned int child_phys_lo;
 227
 228         unsigned int parent_phys_hi;
 229         unsigned int parent_phys_lo;
 230
 231         unsigned int size_hi;
 232         unsigned int size_lo;
 233 };
 234
 235 struct linux_prom_pci_intmap {
 236         unsigned int phys_hi;
 237         unsigned int phys_mid;
 238         unsigned int phys_lo;
 239
 240         unsigned int interrupt;
 241
 242         int          cnode;
 243         unsigned int cinterrupt;
 244 };
 245
 246 struct linux_prom_pci_intmask {
 247         unsigned int phys_hi;
 248         unsigned int phys_mid;
 249         unsigned int phys_lo;
 250         unsigned int interrupt;
 251 };
 252
 253 struct linux_prom_ebus_ranges {
 254         unsigned int child_phys_hi;
 255         unsigned int child_phys_lo;
 256
 257         unsigned int parent_phys_hi;
 258         unsigned int parent_phys_mid;
 259         unsigned int parent_phys_lo;
 260
 261         unsigned int size;
 262 };
 263
 264 struct linux_prom_ebus_intmap {
 265         unsigned int phys_hi;
 266         unsigned int phys_lo;
 267
 268         unsigned int interrupt;
 269
 270         int          cnode;
 271         unsigned int cinterrupt;
 272 };
 273
 274 struct linux_prom_ebus_intmask {
 275         unsigned int phys_hi;
 276         unsigned int phys_lo;
 277         unsigned int interrupt;
 278 };
 279 #endif /* !(__ASSEMBLY__) */
 280
 281 #endif /* !(__SPARC64_OPENPROM_H) */