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1 | \ ========== Copyright Header Begin ========================================== |
2 | \ | |
3 | \ Hypervisor Software File: methods.fth | |
4 | \ | |
5 | \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
6 | \ | |
7 | \ - Do no alter or remove copyright notices | |
8 | \ | |
9 | \ - Redistribution and use of this software in source and binary forms, with | |
10 | \ or without modification, are permitted provided that the following | |
11 | \ conditions are met: | |
12 | \ | |
13 | \ - Redistribution of source code must retain the above copyright notice, | |
14 | \ this list of conditions and the following disclaimer. | |
15 | \ | |
16 | \ - Redistribution in binary form must reproduce the above copyright notice, | |
17 | \ this list of conditions and the following disclaimer in the | |
18 | \ documentation and/or other materials provided with the distribution. | |
19 | \ | |
20 | \ Neither the name of Sun Microsystems, Inc. or the names of contributors | |
21 | \ may be used to endorse or promote products derived from this software | |
22 | \ without specific prior written permission. | |
23 | \ | |
24 | \ This software is provided "AS IS," without a warranty of any kind. | |
25 | \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, | |
26 | \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A | |
27 | \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN | |
28 | \ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR | |
29 | \ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
30 | \ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN | |
31 | \ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR | |
32 | \ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE | |
33 | \ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, | |
34 | \ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF | |
35 | \ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
36 | \ | |
37 | \ You acknowledge that this software is not designed, licensed or | |
38 | \ intended for use in the design, construction, operation or maintenance of | |
39 | \ any nuclear facility. | |
40 | \ | |
41 | \ ========== Copyright Header End ============================================ | |
42 | id: @(#)methods.fth 1.1 06/02/16 | |
43 | purpose: | |
44 | copyright: Copyright 2006 Sun Microsystems, Inc. All Rights Reserved | |
45 | copyright: Use is subject to license terms. | |
46 | ||
47 | headerless | |
48 | ||
49 | h# 0 constant fixbase | |
50 | h# 40 constant fixsize | |
51 | fixbase fixsize + constant nvbase | |
52 | h# 16c0 constant nvsize | |
53 | ||
54 | nvbase nvsize + constant keystore-base | |
55 | h# 100 constant keystore-size | |
56 | ||
57 | h# 0 constant rawbase | |
58 | h# 2000 constant rawsize | |
59 | ||
60 | 0 instance value basepos \ Absolute offset of this partition | |
61 | 0 instance value filepos \ Current position in partition | |
62 | 0 instance value psize \ Partition size | |
63 | ||
64 | : clip-range ( len -- len' ) psize filepos - min ; | |
65 | : bump-pos ( n -- ) filepos + psize min to filepos ; | |
66 | : range-bad? ( offset -- offset flag ) dup 0 psize within invert ; | |
67 | ||
68 | struct | |
69 | /w field >offset | |
70 | /c field >command | |
71 | /c field >send-size | |
72 | constant /send-hdr | |
73 | ||
74 | struct | |
75 | /c field >status | |
76 | /c field >reply-size | |
77 | constant /reply-hdr | |
78 | ||
79 | d# 32 constant blocksize | |
80 | ||
81 | : setup-pkt ( len cmd -- tx-bytes ) | |
82 | dup >r outbuf >command c! ( len ) | |
83 | basepos filepos + outbuf >offset w! ( ) | |
84 | blocksize min dup outbuf >send-size c! ( len' ) | |
85 | r> 0= if drop 0 then /send-hdr + ( tx-bytes ) | |
86 | ; | |
87 | ||
88 | : recv ( -- len ) | |
89 | recv if | |
90 | inbuf >status c@ if | |
91 | 0 | |
92 | else | |
93 | inbuf >reply-size c@ dup filepos + is filepos | |
94 | then | |
95 | else | |
96 | 0 | |
97 | then | |
98 | ; | |
99 | ||
100 | : poll ( acf -- ) | |
101 | >r d# 100 begin r@ execute 0= over 0<> and while 1 - 10 ms repeat | |
102 | r> drop 0= if | |
103 | cmn-error[ " NVRAM transfer timed out." ]cmn-end -1 throw | |
104 | then | |
105 | ; | |
106 | ||
107 | : (read) ( adr len -- actual-len ) | |
108 | 0 setup-pkt ( adr bytes ) | |
109 | ['] send? poll send ( adr ) | |
110 | ['] recv? poll recv ?dup if ( adr len ) | |
111 | tuck inbuf /reply-hdr + -rot move ( len true ) | |
112 | else ( adr ) | |
113 | drop 0 ( 0 ) | |
114 | then | |
115 | ; | |
116 | ||
117 | : (write) ( adr len -- actual-len ) | |
118 | 1 setup-pkt ( adr bytes ) | |
119 | swap outbuf /send-hdr + outbuf >send-size c@ move ( bytes ) | |
120 | ['] send? poll send ( ) | |
121 | ['] recv? poll recv ( len ) | |
122 | ; | |
123 | ||
124 | 0 instance value action | |
125 | ||
126 | : xfer ( buf len acf -- len ) | |
127 | is action | |
128 | clip-range | |
129 | 0 -rot begin ( bytes buf len ) | |
130 | ?dup while ( bytes buf len ) | |
131 | 2dup blocksize min ( bytes buf len buf n ) | |
132 | action catch if ( bytes buf len buf n ) | |
133 | 3drop 0 ( bytes buf 0 ) | |
134 | else ( bytes buf len n ) | |
135 | tuck - >r ( bytes buf n ) | |
136 | tuck + >r ( bytes n ) | |
137 | + r> r> ( bytes buf' len' ) | |
138 | then ( bytes buf' len' ) | |
139 | repeat drop ( bytes ) | |
140 | ; | |
141 | ||
142 | : $= ( adr,len adr2,len -- same? ) | |
143 | rot tuck <> if 3drop false exit then comp 0= | |
144 | ; | |
145 | ||
146 | external | |
147 | ||
148 | : read ( buf len -- len' ) ['] (read) xfer ; | |
149 | ||
150 | : write ( buf len -- len' ) ['] (write) xfer ; | |
151 | ||
152 | : open ( -- true ) | |
153 | nvbase nvsize | |
154 | my-args " keys" $= if 2drop keystore-base keystore-size then | |
155 | my-args " fixed" $= if 2drop fixbase fixsize then | |
156 | my-args " raw" $= if 2drop rawbase rawsize then | |
157 | to psize to basepos ( ) | |
158 | 0 to filepos ( ) | |
159 | 1 /send-hdr blocksize + init-svc | |
160 | true | |
161 | ; | |
162 | ||
163 | : close ( -- ) finish-svc ; | |
164 | ||
165 | : seek ( lo hi -- error ) | |
166 | drop dup 0< if psize + then | |
167 | range-bad? tuck if drop else to filepos then ( fail? ) | |
168 | ; | |
169 | ||
170 | : size ( -- n ) psize filepos - ; | |
171 | ||
172 | : sync ( -- ) ; | |
173 | ||
174 | headers |