diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-m68k/oplib.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-m68k/oplib.h')
-rw-r--r-- | include/asm-m68k/oplib.h | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/include/asm-m68k/oplib.h b/include/asm-m68k/oplib.h new file mode 100644 index 000000000000..c3594f473ef7 --- /dev/null +++ b/include/asm-m68k/oplib.h | |||
@@ -0,0 +1,297 @@ | |||
1 | /* $Id: oplib.h,v 1.12 1996/10/31 06:29:13 davem Exp $ | ||
2 | * oplib.h: Describes the interface and available routines in the | ||
3 | * Linux Prom library. | ||
4 | * | ||
5 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | ||
6 | */ | ||
7 | |||
8 | #ifndef __SPARC_OPLIB_H | ||
9 | #define __SPARC_OPLIB_H | ||
10 | |||
11 | #include <asm/openprom.h> | ||
12 | |||
13 | /* The master romvec pointer... */ | ||
14 | extern struct linux_romvec *romvec; | ||
15 | |||
16 | /* Enumeration to describe the prom major version we have detected. */ | ||
17 | enum prom_major_version { | ||
18 | PROM_V0, /* Original sun4c V0 prom */ | ||
19 | PROM_V2, /* sun4c and early sun4m V2 prom */ | ||
20 | PROM_V3, /* sun4m and later, up to sun4d/sun4e machines V3 */ | ||
21 | PROM_P1275, /* IEEE compliant ISA based Sun PROM, only sun4u */ | ||
22 | PROM_AP1000, /* actually no prom at all */ | ||
23 | }; | ||
24 | |||
25 | extern enum prom_major_version prom_vers; | ||
26 | /* Revision, and firmware revision. */ | ||
27 | extern unsigned int prom_rev, prom_prev; | ||
28 | |||
29 | /* Root node of the prom device tree, this stays constant after | ||
30 | * initialization is complete. | ||
31 | */ | ||
32 | extern int prom_root_node; | ||
33 | |||
34 | /* Pointer to prom structure containing the device tree traversal | ||
35 | * and usage utility functions. Only prom-lib should use these, | ||
36 | * users use the interface defined by the library only! | ||
37 | */ | ||
38 | extern struct linux_nodeops *prom_nodeops; | ||
39 | |||
40 | /* The functions... */ | ||
41 | |||
42 | /* You must call prom_init() before using any of the library services, | ||
43 | * preferably as early as possible. Pass it the romvec pointer. | ||
44 | */ | ||
45 | extern void prom_init(struct linux_romvec *rom_ptr); | ||
46 | |||
47 | /* Boot argument acquisition, returns the boot command line string. */ | ||
48 | extern char *prom_getbootargs(void); | ||
49 | |||
50 | /* Device utilities. */ | ||
51 | |||
52 | /* Map and unmap devices in IO space at virtual addresses. Note that the | ||
53 | * virtual address you pass is a request and the prom may put your mappings | ||
54 | * somewhere else, so check your return value as that is where your new | ||
55 | * mappings really are! | ||
56 | * | ||
57 | * Another note, these are only available on V2 or higher proms! | ||
58 | */ | ||
59 | extern char *prom_mapio(char *virt_hint, int io_space, unsigned int phys_addr, unsigned int num_bytes); | ||
60 | extern void prom_unmapio(char *virt_addr, unsigned int num_bytes); | ||
61 | |||
62 | /* Device operations. */ | ||
63 | |||
64 | /* Open the device described by the passed string. Note, that the format | ||
65 | * of the string is different on V0 vs. V2->higher proms. The caller must | ||
66 | * know what he/she is doing! Returns the device descriptor, an int. | ||
67 | */ | ||
68 | extern int prom_devopen(char *device_string); | ||
69 | |||
70 | /* Close a previously opened device described by the passed integer | ||
71 | * descriptor. | ||
72 | */ | ||
73 | extern int prom_devclose(int device_handle); | ||
74 | |||
75 | /* Do a seek operation on the device described by the passed integer | ||
76 | * descriptor. | ||
77 | */ | ||
78 | extern void prom_seek(int device_handle, unsigned int seek_hival, | ||
79 | unsigned int seek_lowval); | ||
80 | |||
81 | /* Machine memory configuration routine. */ | ||
82 | |||
83 | /* This function returns a V0 format memory descriptor table, it has three | ||
84 | * entries. One for the total amount of physical ram on the machine, one | ||
85 | * for the amount of physical ram available, and one describing the virtual | ||
86 | * areas which are allocated by the prom. So, in a sense the physical | ||
87 | * available is a calculation of the total physical minus the physical mapped | ||
88 | * by the prom with virtual mappings. | ||
89 | * | ||
90 | * These lists are returned pre-sorted, this should make your life easier | ||
91 | * since the prom itself is way too lazy to do such nice things. | ||
92 | */ | ||
93 | extern struct linux_mem_v0 *prom_meminfo(void); | ||
94 | |||
95 | /* Miscellaneous routines, don't really fit in any category per se. */ | ||
96 | |||
97 | /* Reboot the machine with the command line passed. */ | ||
98 | extern void prom_reboot(char *boot_command); | ||
99 | |||
100 | /* Evaluate the forth string passed. */ | ||
101 | extern void prom_feval(char *forth_string); | ||
102 | |||
103 | /* Enter the prom, with possibility of continuation with the 'go' | ||
104 | * command in newer proms. | ||
105 | */ | ||
106 | extern void prom_cmdline(void); | ||
107 | |||
108 | /* Enter the prom, with no chance of continuation for the stand-alone | ||
109 | * which calls this. | ||
110 | */ | ||
111 | extern void prom_halt(void); | ||
112 | |||
113 | /* Set the PROM 'sync' callback function to the passed function pointer. | ||
114 | * When the user gives the 'sync' command at the prom prompt while the | ||
115 | * kernel is still active, the prom will call this routine. | ||
116 | * | ||
117 | * XXX The arguments are different on V0 vs. V2->higher proms, grrr! XXX | ||
118 | */ | ||
119 | typedef void (*sync_func_t)(void); | ||
120 | extern void prom_setsync(sync_func_t func_ptr); | ||
121 | |||
122 | /* Acquire the IDPROM of the root node in the prom device tree. This | ||
123 | * gets passed a buffer where you would like it stuffed. The return value | ||
124 | * is the format type of this idprom or 0xff on error. | ||
125 | */ | ||
126 | extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); | ||
127 | |||
128 | /* Get the prom major version. */ | ||
129 | extern int prom_version(void); | ||
130 | |||
131 | /* Get the prom plugin revision. */ | ||
132 | extern int prom_getrev(void); | ||
133 | |||
134 | /* Get the prom firmware revision. */ | ||
135 | extern int prom_getprev(void); | ||
136 | |||
137 | /* Character operations to/from the console.... */ | ||
138 | |||
139 | /* Non-blocking get character from console. */ | ||
140 | extern int prom_nbgetchar(void); | ||
141 | |||
142 | /* Non-blocking put character to console. */ | ||
143 | extern int prom_nbputchar(char character); | ||
144 | |||
145 | /* Blocking get character from console. */ | ||
146 | extern char prom_getchar(void); | ||
147 | |||
148 | /* Blocking put character to console. */ | ||
149 | extern void prom_putchar(char character); | ||
150 | |||
151 | /* Prom's internal printf routine, don't use in kernel/boot code. */ | ||
152 | void prom_printf(char *fmt, ...); | ||
153 | |||
154 | /* Query for input device type */ | ||
155 | |||
156 | enum prom_input_device { | ||
157 | PROMDEV_IKBD, /* input from keyboard */ | ||
158 | PROMDEV_ITTYA, /* input from ttya */ | ||
159 | PROMDEV_ITTYB, /* input from ttyb */ | ||
160 | PROMDEV_I_UNK, | ||
161 | }; | ||
162 | |||
163 | extern enum prom_input_device prom_query_input_device(void); | ||
164 | |||
165 | /* Query for output device type */ | ||
166 | |||
167 | enum prom_output_device { | ||
168 | PROMDEV_OSCREEN, /* to screen */ | ||
169 | PROMDEV_OTTYA, /* to ttya */ | ||
170 | PROMDEV_OTTYB, /* to ttyb */ | ||
171 | PROMDEV_O_UNK, | ||
172 | }; | ||
173 | |||
174 | extern enum prom_output_device prom_query_output_device(void); | ||
175 | |||
176 | /* Multiprocessor operations... */ | ||
177 | |||
178 | /* Start the CPU with the given device tree node, context table, and context | ||
179 | * at the passed program counter. | ||
180 | */ | ||
181 | extern int prom_startcpu(int cpunode, struct linux_prom_registers *context_table, | ||
182 | int context, char *program_counter); | ||
183 | |||
184 | /* Stop the CPU with the passed device tree node. */ | ||
185 | extern int prom_stopcpu(int cpunode); | ||
186 | |||
187 | /* Idle the CPU with the passed device tree node. */ | ||
188 | extern int prom_idlecpu(int cpunode); | ||
189 | |||
190 | /* Re-Start the CPU with the passed device tree node. */ | ||
191 | extern int prom_restartcpu(int cpunode); | ||
192 | |||
193 | /* PROM memory allocation facilities... */ | ||
194 | |||
195 | /* Allocated at possibly the given virtual address a chunk of the | ||
196 | * indicated size. | ||
197 | */ | ||
198 | extern char *prom_alloc(char *virt_hint, unsigned int size); | ||
199 | |||
200 | /* Free a previously allocated chunk. */ | ||
201 | extern void prom_free(char *virt_addr, unsigned int size); | ||
202 | |||
203 | /* Sun4/sun4c specific memory-management startup hook. */ | ||
204 | |||
205 | /* Map the passed segment in the given context at the passed | ||
206 | * virtual address. | ||
207 | */ | ||
208 | extern void prom_putsegment(int context, unsigned long virt_addr, | ||
209 | int physical_segment); | ||
210 | |||
211 | /* PROM device tree traversal functions... */ | ||
212 | |||
213 | /* Get the child node of the given node, or zero if no child exists. */ | ||
214 | extern int prom_getchild(int parent_node); | ||
215 | |||
216 | /* Get the next sibling node of the given node, or zero if no further | ||
217 | * siblings exist. | ||
218 | */ | ||
219 | extern int prom_getsibling(int node); | ||
220 | |||
221 | /* Get the length, at the passed node, of the given property type. | ||
222 | * Returns -1 on error (ie. no such property at this node). | ||
223 | */ | ||
224 | extern int prom_getproplen(int thisnode, char *property); | ||
225 | |||
226 | /* Fetch the requested property using the given buffer. Returns | ||
227 | * the number of bytes the prom put into your buffer or -1 on error. | ||
228 | */ | ||
229 | extern int prom_getproperty(int thisnode, char *property, | ||
230 | char *prop_buffer, int propbuf_size); | ||
231 | |||
232 | /* Acquire an integer property. */ | ||
233 | extern int prom_getint(int node, char *property); | ||
234 | |||
235 | /* Acquire an integer property, with a default value. */ | ||
236 | extern int prom_getintdefault(int node, char *property, int defval); | ||
237 | |||
238 | /* Acquire a boolean property, 0=FALSE 1=TRUE. */ | ||
239 | extern int prom_getbool(int node, char *prop); | ||
240 | |||
241 | /* Acquire a string property, null string on error. */ | ||
242 | extern void prom_getstring(int node, char *prop, char *buf, int bufsize); | ||
243 | |||
244 | /* Does the passed node have the given "name"? YES=1 NO=0 */ | ||
245 | extern int prom_nodematch(int thisnode, char *name); | ||
246 | |||
247 | /* Puts in buffer a prom name in the form name@x,y or name (x for which_io | ||
248 | * and y for first regs phys address | ||
249 | */ | ||
250 | extern int prom_getname(int node, char *buf, int buflen); | ||
251 | |||
252 | /* Search all siblings starting at the passed node for "name" matching | ||
253 | * the given string. Returns the node on success, zero on failure. | ||
254 | */ | ||
255 | extern int prom_searchsiblings(int node_start, char *name); | ||
256 | |||
257 | /* Return the first property type, as a string, for the given node. | ||
258 | * Returns a null string on error. | ||
259 | */ | ||
260 | extern char *prom_firstprop(int node); | ||
261 | |||
262 | /* Returns the next property after the passed property for the given | ||
263 | * node. Returns null string on failure. | ||
264 | */ | ||
265 | extern char *prom_nextprop(int node, char *prev_property); | ||
266 | |||
267 | /* Returns 1 if the specified node has given property. */ | ||
268 | extern int prom_node_has_property(int node, char *property); | ||
269 | |||
270 | /* Set the indicated property at the given node with the passed value. | ||
271 | * Returns the number of bytes of your value that the prom took. | ||
272 | */ | ||
273 | extern int prom_setprop(int node, char *prop_name, char *prop_value, | ||
274 | int value_size); | ||
275 | |||
276 | extern int prom_pathtoinode(char *path); | ||
277 | extern int prom_inst2pkg(int); | ||
278 | |||
279 | /* Dorking with Bus ranges... */ | ||
280 | |||
281 | /* Adjust reg values with the passed ranges. */ | ||
282 | extern void prom_adjust_regs(struct linux_prom_registers *regp, int nregs, | ||
283 | struct linux_prom_ranges *rangep, int nranges); | ||
284 | |||
285 | /* Adjust child ranges with the passed parent ranges. */ | ||
286 | extern void prom_adjust_ranges(struct linux_prom_ranges *cranges, int ncranges, | ||
287 | struct linux_prom_ranges *pranges, int npranges); | ||
288 | |||
289 | /* Apply promlib probed OBIO ranges to registers. */ | ||
290 | extern void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs); | ||
291 | |||
292 | /* Apply ranges of any prom node (and optionally parent node as well) to registers. */ | ||
293 | extern void prom_apply_generic_ranges(int node, int parent, | ||
294 | struct linux_prom_registers *sbusregs, int nregs); | ||
295 | |||
296 | |||
297 | #endif /* !(__SPARC_OPLIB_H) */ | ||