1 /* $Id: openprom.h,v 1.8 2000/08/12 19:55:25 anton 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 long phys_addr;
190 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 /* Ranges and reg properties are a bit different for PCI. */
208 struct linux_prom_pci_registers {
209 unsigned int phys_hi;
210 unsigned int phys_mid;
211 unsigned int phys_lo;
212
213 unsigned int size_hi;
214 unsigned int size_lo;
215 };
216
217 struct linux_prom_pci_ranges {
218 unsigned int child_phys_hi; /* Only certain bits are encoded here. */
219 unsigned int child_phys_mid;
220 unsigned int child_phys_lo;
221
222 unsigned int parent_phys_hi;
223 unsigned int parent_phys_lo;
224
225 unsigned int size_hi;
226 unsigned int size_lo;
227 };
228
229 struct linux_prom_pci_intmap {
230 unsigned int phys_hi;
231 unsigned int phys_mid;
232 unsigned int phys_lo;
233
234 unsigned int interrupt;
235
236 int cnode;
237 unsigned int cinterrupt;
238 };
239
240 struct linux_prom_pci_intmask {
241 unsigned int phys_hi;
242 unsigned int phys_mid;
243 unsigned int phys_lo;
244 unsigned int interrupt;
245 };
246
247 struct linux_prom_ebus_ranges {
248 unsigned int child_phys_hi;
249 unsigned int child_phys_lo;
250
251 unsigned int parent_phys_hi;
252 unsigned int parent_phys_mid;
253 unsigned int parent_phys_lo;
254
255 unsigned int size;
256 };
257
258 struct linux_prom_ebus_intmap {
259 unsigned int phys_hi;
260 unsigned int phys_lo;
261
262 unsigned int interrupt;
263
264 int cnode;
265 unsigned int cinterrupt;
266 };
267
268 struct linux_prom_ebus_intmask {
269 unsigned int phys_hi;
270 unsigned int phys_lo;
271 unsigned int interrupt;
272 };
273 #endif /* !(__ASSEMBLY__) */
274
275 #endif /* !(__SPARC64_OPENPROM_H) */
276
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