alpha_prom.h Source File

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alpha_prom.h
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1 /* GXemul: $Id: alpha_prom.h,v 1.2 2006-09-01 16:40:57 debug Exp $ */
2 /* $NetBSD: prom.h,v 1.12 2000/06/08 03:10:06 thorpej Exp $ */
3 
4 /*
5  * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
6  * All rights reserved.
7  *
8  * Author: Keith Bostic, Chris G. Demetriou
9  *
10  * Permission to use, copy, modify and distribute this software and
11  * its documentation is hereby granted, provided that both the copyright
12  * notice and this permission notice appear in all copies of the
13  * software, derivative works or modified versions, and any portions
14  * thereof, and that both notices appear in supporting documentation.
15  *
16  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17  * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19  *
20  * Carnegie Mellon requests users of this software to return to
21  *
22  * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
23  * School of Computer Science
24  * Carnegie Mellon University
25  * Pittsburgh PA 15213-3890
26  *
27  * any improvements or extensions that they make and grant Carnegie the
28  * rights to redistribute these changes.
29  */
30 
31 #if 0
32 
33 #ifndef ASSEMBLER
34 struct prom_vec {
35  u_int64_t routine;
36  void *routine_arg;
37 };
38 
39 /* The return value from a prom call. */
40 typedef union {
41  struct {
42  u_int64_t
43  retval : 32, /* return value. */
44  unit : 8,
45  mbz : 8,
46  error : 13,
47  status : 3;
48  } u;
49  u_int64_t bits;
50 } prom_return_t;
51 
52 #ifdef _STANDALONE
53 int getchar(void);
54 void putchar(int);
55 #endif
56 
57 void prom_halt(int) __attribute__((__noreturn__));
58 int prom_getenv(int, char *, int);
59 
60 void hwrpb_primary_init(void);
61 void hwrpb_restart_setup(void);
62 #endif
63 
64 #endif
65 
66 /* Prom operation values. */
67 #define PROM_R_CLOSE 0x11
68 #define PROM_R_GETC 0x01
69 #define PROM_R_GETENV 0x22
70 #define PROM_R_OPEN 0x10
71 #define PROM_R_PUTS 0x02
72 #define PROM_R_READ 0x13
73 #define PROM_R_WRITE 0x14
74 #define PROM_R_IOCTL 0x12
75 
76 /* Prom IOCTL operation subcodes */
77 #define PROM_I_SKIP2IRG 1
78 #define PROM_I_SKIP2MARK 2
79 #define PROM_I_REWIND 3
80 #define PROM_I_WRITEMARK 4
81 
82 /* Environment variable values. */
83 #define PROM_E_BOOTED_DEV 0x4
84 #define PROM_E_BOOTED_FILE 0x6
85 #define PROM_E_BOOTED_OSFLAGS 0x8
86 #define PROM_E_TTY_DEV 0xf
87 #define PROM_E_SCSIID 0x42
88 #define PROM_E_SCSIFAST 0x43
89 
90 #if defined(_STANDALONE) || defined(ENABLEPROM)
91 /*
92  * These can't be called from the kernel without great care.
93  *
94  * There have to be stub routines to do the copying that ensures that the
95  * PROM doesn't get called with an address larger than 32 bits. Calls that
96  * either don't need to copy anything, or don't need the copy because it's
97  * already being done elsewhere, are defined here.
98  */
99 #define prom_open(dev, len) \
100  prom_dispatch(PROM_R_OPEN, (dev), (len), 0, 0)
101 #define prom_close(chan) \
102  prom_dispatch(PROM_R_CLOSE, chan, 0, 0, 0)
103 #define prom_read(chan, len, buf, blkno) \
104  prom_dispatch(PROM_R_READ, chan, len, (u_int64_t)buf, blkno)
105 #define prom_write(chan, len, buf, blkno) \
106  prom_dispatch(PROM_R_WRITE, chan, len, (u_int64_t)buf, blkno)
107 #define prom_ioctl(chan, op, count) \
108  prom_dispatch(PROM_R_IOCTL, chan, op, (int64_t)count, 0, 0)
109 #define prom_putstr(chan, str, len) \
110  prom_dispatch(PROM_R_PUTS, chan, (u_int64_t)str, len, 0)
111 #define prom_getc(chan) \
112  prom_dispatch(PROM_R_GETC, chan, 0, 0, 0)
113 #define prom_getenv_disp(id, buf, len) \
114  prom_dispatch(PROM_R_GETENV, id, (u_int64_t)buf, len, 0)
115 #endif
116 
117 #ifndef ASSEMBLER
118 #ifdef _KERNEL
119 int prom_enter(void);
120 void prom_leave(int);
121 
122 void promcnputc(dev_t, int);
123 int promcngetc(dev_t);
124 int promcnlookc(dev_t, char *);
125 
126 u_int64_t prom_dispatch(u_int64_t, u_int64_t, u_int64_t, u_int64_t,
127  u_int64_t);
128 #endif /* _KERNEL */
129 #endif /* ASSEMBLER */
__attribute__
#define __attribute__(x)
Definition: dp83932reg.h:15
__noreturn__
#define __noreturn__
Definition: dp83932reg.h:16

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