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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * Hypervisor Software File: vdev_console.h | |
5 | * | |
6 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
7 | * | |
8 | * - Do no alter or remove copyright notices | |
9 | * | |
10 | * - Redistribution and use of this software in source and binary forms, with | |
11 | * or without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistribution of source code must retain the above copyright notice, | |
15 | * this list of conditions and the following disclaimer. | |
16 | * | |
17 | * - Redistribution in binary form must reproduce the above copyright notice, | |
18 | * this list of conditions and the following disclaimer in the | |
19 | * documentation and/or other materials provided with the distribution. | |
20 | * | |
21 | * Neither the name of Sun Microsystems, Inc. or the names of contributors | |
22 | * may be used to endorse or promote products derived from this software | |
23 | * without specific prior written permission. | |
24 | * | |
25 | * This software is provided "AS IS," without a warranty of any kind. | |
26 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, | |
27 | * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A | |
28 | * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN | |
29 | * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR | |
30 | * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
31 | * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN | |
32 | * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR | |
33 | * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE | |
34 | * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, | |
35 | * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF | |
36 | * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
37 | * | |
38 | * You acknowledge that this software is not designed, licensed or | |
39 | * intended for use in the design, construction, operation or maintenance of | |
40 | * any nuclear facility. | |
41 | * | |
42 | * ========== Copyright Header End ============================================ | |
43 | */ | |
44 | /* | |
45 | * Copyright 2007 Sun Microsystems, Inc. All rights reserved. | |
46 | * Use is subject to license terms. | |
47 | */ | |
48 | ||
49 | #ifndef _VDEV_CONSOLE_H | |
50 | #define _VDEV_CONSOLE_H | |
51 | ||
52 | #pragma ident "@(#)vdev_console.h 1.7 07/05/03 SMI" | |
53 | ||
54 | #ifdef __cplusplus | |
55 | extern "C" { | |
56 | #endif | |
57 | ||
58 | #define CONS_TYPE_UNCONFIG 0x0 | |
59 | #define CONS_TYPE_LDC 0x1 | |
60 | #ifdef CONFIG_CN_UART | |
61 | #define CONS_TYPE_UART 0x2 | |
62 | #endif | |
63 | ||
64 | /* | |
65 | * LDC based console status values | |
66 | * The status field is a bit field where each bit | |
67 | * corresponds to a state | |
68 | */ | |
69 | #define LDC_CONS_READY 0x1 | |
70 | #define LDC_CONS_BREAK 0x2 | |
71 | #define LDC_CONS_HUP 0x4 | |
72 | ||
73 | #define CONS_INBUF_ENTRIES 64 | |
74 | #define CONS_INBUF_SIZE (CONS_INBUF_ENTRIES*8) | |
75 | ||
76 | /* | |
77 | * LDC console pkt format | |
78 | * | |
79 | * 6 3 1 1 | |
80 | * 3 2 6 5 8 7 0 | |
81 | * +------------------------+-------------+--------+-------+ | |
82 | * word 0: | ctrl_msg | unused | size | type | | |
83 | * +------------------------+-------------+--------+-------+ | |
84 | * word 1-6: | payload | | |
85 | * +-------------------------------------------------------+ | |
86 | */ | |
87 | ||
88 | /* | |
89 | * LDC Console msg type | |
90 | */ | |
91 | #define LDC_CONSOLE_CONTROL 0x1 | |
92 | #define LDC_CONSOLE_DATA 0x2 | |
93 | ||
94 | #define LDC_CONS_PAYLOAD_SZ 56 | |
95 | ||
96 | #ifndef _ASM | |
97 | struct ldc_conspkt { | |
98 | uint8_t type; /* packet type */ | |
99 | uint8_t size; /* num chars in payload */ | |
100 | uint16_t rsvd; | |
101 | uint32_t ctrl_msg; /* control message */ | |
102 | uint8_t payload[LDC_CONS_PAYLOAD_SZ]; | |
103 | }; | |
104 | ||
105 | ||
106 | /* | |
107 | * Info to help with (re)configuration | |
108 | */ | |
109 | ||
110 | typedef struct { | |
111 | resource_t res; | |
112 | uint8_t type; | |
113 | uint8_t ino; /* virtual device ino */ | |
114 | int ldc_channel; | |
115 | #ifdef CONFIG_CN_UART | |
116 | uint64_t uartbase; | |
117 | #endif | |
118 | } console_parse_info_t; | |
119 | ||
120 | ||
121 | /* | |
122 | * Guest console structure | |
123 | */ | |
124 | struct console { | |
125 | uint8_t type; /* type of console */ | |
126 | ||
127 | console_parse_info_t pip; | |
128 | #ifdef CONFIG_CN_UART | |
129 | /* | |
130 | * UART based console (primarily for Legion at this point) | |
131 | */ | |
132 | uint64_t uartbase; /* console base address */ | |
133 | #endif | |
134 | /* | |
135 | * LDC based console | |
136 | */ | |
137 | uint8_t status; /* Console status */ | |
138 | uint64_t endpt; /* HV LDC Endpt */ | |
139 | uint64_t in_head; /* Incoming buf head */ | |
140 | uint64_t in_tail; /* Incoming buf tail */ | |
141 | vdev_mapreg_t *vintr_mapreg; /* for guest intr */ | |
142 | uint64_t in_buf[CONS_INBUF_ENTRIES]; /* Incoming buffer */ | |
143 | }; | |
144 | ||
145 | /* | |
146 | * Support functions for console resource | |
147 | */ | |
148 | ||
149 | extern void init_consoles(); | |
150 | ||
151 | #endif /* !_ASM */ | |
152 | ||
153 | #ifdef __cplusplus | |
154 | } | |
155 | #endif | |
156 | ||
157 | #endif /* _VDEV_CONSOLE_H */ |