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openprom.h
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1 #ifndef __SPARC_OPENPROM_H
2 #define __SPARC_OPENPROM_H
3 
4 /* openprom.h: Prom structures and defines for access to the OPENBOOT
5  * prom routines and data areas.
6  *
7  * Copyright (C) 1995 David S. Miller ([email protected])
8  */
9 
10 
11 /* Empirical constants... */
12 #ifdef CONFIG_SUN3
13 #define KADB_DEBUGGER_BEGVM 0x0fee0000 /* There is no kadb yet but...*/
14 #define LINUX_OPPROM_BEGVM 0x0fef0000
15 #define LINUX_OPPROM_ENDVM 0x0ff10000 /* I think this is right - tm */
16 #else
17 #define KADB_DEBUGGER_BEGVM 0xffc00000 /* Where kern debugger is in virt-mem */
18 #define LINUX_OPPROM_BEGVM 0xffd00000
19 #define LINUX_OPPROM_ENDVM 0xfff00000
20 #define LINUX_OPPROM_MAGIC 0x10010407
21 #endif
22 
23 #ifndef __ASSEMBLY__
24 /* V0 prom device operations. */
26  int (*v0_devopen)(char *device_str);
28  int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
29  int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf);
30  int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf);
31  int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf);
32  int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
33  int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf);
34  int (*v0_seekdev)(int dev_desc, long logical_offst, int from);
35 };
36 
37 /* V2 and later prom device operations. */
39  int (*v2_inst2pkg)(int d); /* Convert ihandle to phandle */
40  char * (*v2_dumb_mem_alloc)(char *va, unsigned sz);
41  void (*v2_dumb_mem_free)(char *va, unsigned sz);
42 
43  /* To map devices into virtual I/O space. */
44  char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz);
45  void (*v2_dumb_munmap)(char *virta, unsigned size);
46 
47  int (*v2_dev_open)(char *devpath);
48  void (*v2_dev_close)(int d);
49  int (*v2_dev_read)(int d, char *buf, int nbytes);
50  int (*v2_dev_write)(int d, char *buf, int nbytes);
51  int (*v2_dev_seek)(int d, int hi, int lo);
52 
53  /* Never issued (multistage load support) */
56 };
57 
60  char *start_adr;
61  unsigned num_bytes;
62 };
63 
64 struct linux_mem_v0 {
67  struct linux_mlist_v0 **v0_available; /* What we can use */
68 };
69 
70 /* Arguments sent to the kernel from the boot prompt. */
72  char *argv[8];
73  char args[100];
74  char boot_dev[2];
79  void *aieee1; /* XXX */
80 };
81 
82 /* V2 and up boot things. */
84  char **bootpath;
85  char **bootargs;
86  int *fd_stdin;
87  int *fd_stdout;
88 };
89 
90 #if defined(CONFIG_SUN3) || defined(CONFIG_SUN3X)
91 struct linux_romvec {
92  char *pv_initsp;
93  int (*pv_startmon)(void);
94 
95  int *diagberr;
96 
98  unsigned *pv_sun3mem;
99 
100  unsigned char (*pv_getchar)(void);
101  int (*pv_putchar)(int ch);
102  int (*pv_nbgetchar)(void);
103  int (*pv_nbputchar)(int ch);
104  unsigned char *pv_echo;
105  unsigned char *pv_insource;
106  unsigned char *pv_outsink;
107 
108  int (*pv_getkey)(void);
109  int (*pv_initgetkey)(void);
110  unsigned int *pv_translation;
111  unsigned char *pv_keybid;
112  int *pv_screen_x;
113  int *pv_screen_y;
114  struct keybuf *pv_keybuf;
115 
116  char *pv_monid;
117 
118  /*
119  * Frame buffer output and terminal emulation
120  */
121 
122  int (*pv_fbwritechar)(char);
123  int *pv_fbaddr;
124  char **pv_font;
125  int (*pv_fbwritestr)(char);
126 
127  void (*pv_reboot)(char *bootstr);
128 
129  /*
130  * Line input and parsing
131  */
132 
133  unsigned char *pv_linebuf;
134  unsigned char **pv_lineptr;
135  int *pv_linesize;
136  int (*pv_getline)(void);
137  unsigned char (*pv_getnextchar)(void);
138  unsigned char (*pv_peeknextchar)(void);
139  int *pv_fbthere;
140  int (*pv_getnum)(void);
141 
142  void (*pv_printf)(const char *fmt, ...);
143  int (*pv_printhex)(void);
144 
145  unsigned char *pv_leds;
146  int (*pv_setleds)(void);
147 
148  /*
149  * Non-maskable interrupt (nmi) information
150  */
151 
152  int (*pv_nmiaddr)(void);
153  int (*pv_abortentry)(void);
154  int *pv_nmiclock;
155 
156  int *pv_fbtype;
157 
158  /*
159  * Assorted other things
160  */
161 
162  unsigned pv_romvers;
163  struct globram *pv_globram;
164  char *pv_kbdzscc;
165 
166  int *pv_keyrinit;
167  unsigned char *pv_keyrtick;
168  unsigned *pv_memoryavail;
169  long *pv_resetaddr;
170  long *pv_resetmap;
171 
172  void (*pv_halt)(void);
173  unsigned char *pv_memorybitmap;
174 
175 #ifdef CONFIG_SUN3
176  void (*pv_setctxt)(int ctxt, char *va, int pmeg);
177  void (*pv_vector_cmd)(void);
178  int dummy1z;
179  int dummy2z;
180  int dummy3z;
181  int dummy4z;
182 #endif
183 };
184 #else
185 /* The top level PROM vector. */
186 struct linux_romvec {
187  /* Version numbers. */
188  unsigned int pv_magic_cookie;
189  unsigned int pv_romvers;
190  unsigned int pv_plugin_revision;
191  unsigned int pv_printrev;
192 
193  /* Version 0 memory descriptors. */
195 
196  /* Node operations. */
198 
199  char **pv_bootstr;
201 
202  char *pv_stdin;
203  char *pv_stdout;
204 #define PROMDEV_KBD 0 /* input from keyboard */
205 #define PROMDEV_SCREEN 0 /* output to screen */
206 #define PROMDEV_TTYA 1 /* in/out to ttya */
207 #define PROMDEV_TTYB 2 /* in/out to ttyb */
208 
209  /* Blocking getchar/putchar. NOT REENTRANT! (grr) */
211  void (*pv_putchar)(int ch);
212 
213  /* Non-blocking variants. */
215  int (*pv_nbputchar)(int ch);
216 
217  void (*pv_putstr)(char *str, int len);
218 
219  /* Miscellany. */
220  void (*pv_reboot)(char *bootstr);
221  void (*pv_printf)(__const__ char *fmt, ...);
223  __volatile__ int *pv_ticks;
226 
227  /* Evaluate a forth string, not different proto for V0 and V2->up. */
228  union {
229  void (*v0_eval)(int len, char *str);
230  void (*v2_eval)(char *str);
231  } pv_fortheval;
232 
234 
235  /* Get ether address. */
236  unsigned int (*pv_enaddr)(int d, char *enaddr);
237 
240 
241  int filler[15];
242 
243  /* This one is sun4c/sun4 only. */
244  void (*pv_setctxt)(int ctxt, char *va, int pmeg);
245 
246  /* Prom version 3 Multiprocessor routines. This stuff is crazy.
247  * No joke. Calling these when there is only one cpu probably
248  * crashes the machine, have to test this. :-)
249  */
250 
251  /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context
252  * 'thiscontext' executing at address 'prog_counter'
253  */
254  int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr,
255  int thiscontext, char *prog_counter);
256 
257  /* v3_cpustop() will cause cpu 'whichcpu' to stop executing
258  * until a resume cpu call is made.
259  */
260  int (*v3_cpustop)(unsigned int whichcpu);
261 
262  /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or
263  * resume cpu call is made.
264  */
265  int (*v3_cpuidle)(unsigned int whichcpu);
266 
267  /* v3_cpuresume() will resume processor 'whichcpu' executing
268  * starting with whatever 'pc' and 'npc' were left at the
269  * last 'idle' or 'stop' call.
270  */
271  int (*v3_cpuresume)(unsigned int whichcpu);
272 };
273 #endif
274 
275 /* Routines for traversing the prom device tree. */
278  int (*no_child)(int node);
279  int (*no_proplen)(int node, char *name);
280  int (*no_getprop)(int node, char *name, char *val);
281  int (*no_setprop)(int node, char *name, char *val, int len);
282  char * (*no_nextprop)(int node, char *name);
283 };
284 
285 /* More fun PROM structures for device probing. */
286 #define PROMREG_MAX 16
287 #define PROMVADDR_MAX 16
288 #define PROMINTR_MAX 15
289 
291  int which_io; /* is this in OBIO space? */
292  char *phys_addr; /* The physical address of this register */
293  int reg_size; /* How many bytes does this register take up? */
294 };
295 
297  int pri; /* IRQ priority */
298  int vector; /* This is foobar, what does it do? */
299 };
300 
301 /* Element of the "ranges" vector */
303  unsigned int ot_child_space;
304  unsigned int ot_child_base; /* Bus feels this */
305  unsigned int ot_parent_space;
306  unsigned int ot_parent_base; /* CPU looks from here */
307  unsigned int or_size;
308 };
309 
310 #endif /* !(__ASSEMBLY__) */
311 
312 #endif /* !(__SPARC_OPENPROM_H) */