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1da177e4 LT |
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. */ | |
46ba6d7d | 178 | #define PROMREG_MAX 24 |
1da177e4 LT |
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 { | |
13edad7a DM |
189 | unsigned long phys_addr; |
190 | unsigned long reg_size; | |
1da177e4 LT |
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) */ |