diff options
Diffstat (limited to 'arch/sparc64/prom/p1275.c')
-rw-r--r-- | arch/sparc64/prom/p1275.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/arch/sparc64/prom/p1275.c b/arch/sparc64/prom/p1275.c deleted file mode 100644 index 4b7c937bba61..000000000000 --- a/arch/sparc64/prom/p1275.c +++ /dev/null | |||
@@ -1,151 +0,0 @@ | |||
1 | /* | ||
2 | * p1275.c: Sun IEEE 1275 PROM low level interface routines | ||
3 | * | ||
4 | * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | ||
5 | */ | ||
6 | |||
7 | #include <linux/kernel.h> | ||
8 | #include <linux/init.h> | ||
9 | #include <linux/sched.h> | ||
10 | #include <linux/smp.h> | ||
11 | #include <linux/string.h> | ||
12 | #include <linux/spinlock.h> | ||
13 | |||
14 | #include <asm/openprom.h> | ||
15 | #include <asm/oplib.h> | ||
16 | #include <asm/system.h> | ||
17 | #include <asm/spitfire.h> | ||
18 | #include <asm/pstate.h> | ||
19 | #include <asm/ldc.h> | ||
20 | |||
21 | struct { | ||
22 | long prom_callback; /* 0x00 */ | ||
23 | void (*prom_cif_handler)(long *); /* 0x08 */ | ||
24 | unsigned long prom_cif_stack; /* 0x10 */ | ||
25 | unsigned long prom_args [23]; /* 0x18 */ | ||
26 | char prom_buffer [3000]; | ||
27 | } p1275buf; | ||
28 | |||
29 | extern void prom_world(int); | ||
30 | |||
31 | extern void prom_cif_interface(void); | ||
32 | extern void prom_cif_callback(void); | ||
33 | |||
34 | /* | ||
35 | * This provides SMP safety on the p1275buf. prom_callback() drops this lock | ||
36 | * to allow recursuve acquisition. | ||
37 | */ | ||
38 | DEFINE_SPINLOCK(prom_entry_lock); | ||
39 | |||
40 | long p1275_cmd(const char *service, long fmt, ...) | ||
41 | { | ||
42 | char *p, *q; | ||
43 | unsigned long flags; | ||
44 | int nargs, nrets, i; | ||
45 | va_list list; | ||
46 | long attrs, x; | ||
47 | |||
48 | p = p1275buf.prom_buffer; | ||
49 | |||
50 | spin_lock_irqsave(&prom_entry_lock, flags); | ||
51 | |||
52 | p1275buf.prom_args[0] = (unsigned long)p; /* service */ | ||
53 | strcpy (p, service); | ||
54 | p = (char *)(((long)(strchr (p, 0) + 8)) & ~7); | ||
55 | p1275buf.prom_args[1] = nargs = (fmt & 0x0f); /* nargs */ | ||
56 | p1275buf.prom_args[2] = nrets = ((fmt & 0xf0) >> 4); /* nrets */ | ||
57 | attrs = fmt >> 8; | ||
58 | va_start(list, fmt); | ||
59 | for (i = 0; i < nargs; i++, attrs >>= 3) { | ||
60 | switch (attrs & 0x7) { | ||
61 | case P1275_ARG_NUMBER: | ||
62 | p1275buf.prom_args[i + 3] = | ||
63 | (unsigned)va_arg(list, long); | ||
64 | break; | ||
65 | case P1275_ARG_IN_64B: | ||
66 | p1275buf.prom_args[i + 3] = | ||
67 | va_arg(list, unsigned long); | ||
68 | break; | ||
69 | case P1275_ARG_IN_STRING: | ||
70 | strcpy (p, va_arg(list, char *)); | ||
71 | p1275buf.prom_args[i + 3] = (unsigned long)p; | ||
72 | p = (char *)(((long)(strchr (p, 0) + 8)) & ~7); | ||
73 | break; | ||
74 | case P1275_ARG_OUT_BUF: | ||
75 | (void) va_arg(list, char *); | ||
76 | p1275buf.prom_args[i + 3] = (unsigned long)p; | ||
77 | x = va_arg(list, long); | ||
78 | i++; attrs >>= 3; | ||
79 | p = (char *)(((long)(p + (int)x + 7)) & ~7); | ||
80 | p1275buf.prom_args[i + 3] = x; | ||
81 | break; | ||
82 | case P1275_ARG_IN_BUF: | ||
83 | q = va_arg(list, char *); | ||
84 | p1275buf.prom_args[i + 3] = (unsigned long)p; | ||
85 | x = va_arg(list, long); | ||
86 | i++; attrs >>= 3; | ||
87 | memcpy (p, q, (int)x); | ||
88 | p = (char *)(((long)(p + (int)x + 7)) & ~7); | ||
89 | p1275buf.prom_args[i + 3] = x; | ||
90 | break; | ||
91 | case P1275_ARG_OUT_32B: | ||
92 | (void) va_arg(list, char *); | ||
93 | p1275buf.prom_args[i + 3] = (unsigned long)p; | ||
94 | p += 32; | ||
95 | break; | ||
96 | case P1275_ARG_IN_FUNCTION: | ||
97 | p1275buf.prom_args[i + 3] = | ||
98 | (unsigned long)prom_cif_callback; | ||
99 | p1275buf.prom_callback = va_arg(list, long); | ||
100 | break; | ||
101 | } | ||
102 | } | ||
103 | va_end(list); | ||
104 | |||
105 | prom_world(1); | ||
106 | prom_cif_interface(); | ||
107 | prom_world(0); | ||
108 | |||
109 | attrs = fmt >> 8; | ||
110 | va_start(list, fmt); | ||
111 | for (i = 0; i < nargs; i++, attrs >>= 3) { | ||
112 | switch (attrs & 0x7) { | ||
113 | case P1275_ARG_NUMBER: | ||
114 | (void) va_arg(list, long); | ||
115 | break; | ||
116 | case P1275_ARG_IN_STRING: | ||
117 | (void) va_arg(list, char *); | ||
118 | break; | ||
119 | case P1275_ARG_IN_FUNCTION: | ||
120 | (void) va_arg(list, long); | ||
121 | break; | ||
122 | case P1275_ARG_IN_BUF: | ||
123 | (void) va_arg(list, char *); | ||
124 | (void) va_arg(list, long); | ||
125 | i++; attrs >>= 3; | ||
126 | break; | ||
127 | case P1275_ARG_OUT_BUF: | ||
128 | p = va_arg(list, char *); | ||
129 | x = va_arg(list, long); | ||
130 | memcpy (p, (char *)(p1275buf.prom_args[i + 3]), (int)x); | ||
131 | i++; attrs >>= 3; | ||
132 | break; | ||
133 | case P1275_ARG_OUT_32B: | ||
134 | p = va_arg(list, char *); | ||
135 | memcpy (p, (char *)(p1275buf.prom_args[i + 3]), 32); | ||
136 | break; | ||
137 | } | ||
138 | } | ||
139 | va_end(list); | ||
140 | x = p1275buf.prom_args [nargs + 3]; | ||
141 | |||
142 | spin_unlock_irqrestore(&prom_entry_lock, flags); | ||
143 | |||
144 | return x; | ||
145 | } | ||
146 | |||
147 | void prom_cif_init(void *cif_handler, void *cif_stack) | ||
148 | { | ||
149 | p1275buf.prom_cif_handler = (void (*)(long *))cif_handler; | ||
150 | p1275buf.prom_cif_stack = (unsigned long)cif_stack; | ||
151 | } | ||