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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Pavel Rimsky |
2 | * Copyright (c) 2008 Pavel Rimsky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup sparc64 |
29 | /** @addtogroup sparc64 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #ifndef KERN_sparc64_SGCN_H_ |
35 | #ifndef KERN_sparc64_SGCN_H_ |
36 | #define KERN_sparc64_SGCN_H_ |
36 | #define KERN_sparc64_SGCN_H_ |
37 | 37 | ||
38 | #include <arch/types.h> |
38 | #include <arch/types.h> |
39 | #include <console/chardev.h> |
39 | #include <console/chardev.h> |
- | 40 | #include <proc/thread.h> |
|
40 | 41 | ||
41 | /* number of bytes in the TOC magic, including the NULL-terminator */ |
42 | /* number of bytes in the TOC magic, including the NULL-terminator */ |
42 | #define TOC_MAGIC_BYTES 8 |
43 | #define TOC_MAGIC_BYTES 8 |
43 | 44 | ||
44 | /* number of bytes in the TOC key, including the NULL-terminator */ |
45 | /* number of bytes in the TOC key, including the NULL-terminator */ |
45 | #define TOC_KEY_SIZE 8 |
46 | #define TOC_KEY_SIZE 8 |
46 | 47 | ||
47 | /* maximum number of entries in the SRAM table of contents */ |
48 | /* maximum number of entries in the SRAM table of contents */ |
48 | #define MAX_TOC_ENTRIES 32 |
49 | #define MAX_TOC_ENTRIES 32 |
49 | 50 | ||
50 | /* number of bytes in the SGCN buffer magic, including the NULL-terminator */ |
51 | /* number of bytes in the SGCN buffer magic, including the NULL-terminator */ |
51 | #define SGCN_MAGIC_BYTES 4 |
52 | #define SGCN_MAGIC_BYTES 4 |
52 | 53 | ||
53 | /** |
54 | /** |
54 | * Entry in the SRAM table of contents. Describes one segment of the SRAM |
55 | * Entry in the SRAM table of contents. Describes one segment of the SRAM |
55 | * which serves a particular purpose (e.g. OBP serial console, Solaris serial |
56 | * which serves a particular purpose (e.g. OBP serial console, Solaris serial |
56 | * console, Solaris mailbox,...). |
57 | * console, Solaris mailbox,...). |
57 | */ |
58 | */ |
58 | typedef struct { |
59 | typedef struct { |
59 | /** key (e.g. "OBPCONS", "SOLCONS", "SOLMBOX",...) */ |
60 | /** key (e.g. "OBPCONS", "SOLCONS", "SOLMBOX",...) */ |
60 | char key[TOC_KEY_SIZE]; |
61 | char key[TOC_KEY_SIZE]; |
61 | 62 | ||
62 | /** size of the segment in bytes */ |
63 | /** size of the segment in bytes */ |
63 | uint32_t size; |
64 | uint32_t size; |
64 | 65 | ||
65 | /** offset of the segment within SRAM */ |
66 | /** offset of the segment within SRAM */ |
66 | uint32_t offset; |
67 | uint32_t offset; |
67 | } __attribute ((packed)) toc_entry_t; |
68 | } __attribute ((packed)) toc_entry_t; |
68 | 69 | ||
69 | /** |
70 | /** |
70 | * SRAM table of contents. Describes all segments within the SRAM. |
71 | * SRAM table of contents. Describes all segments within the SRAM. |
71 | */ |
72 | */ |
72 | typedef struct { |
73 | typedef struct { |
73 | /** hard-wired to "TOCSRAM" */ |
74 | /** hard-wired to "TOCSRAM" */ |
74 | char magic[TOC_MAGIC_BYTES]; |
75 | char magic[TOC_MAGIC_BYTES]; |
75 | 76 | ||
76 | /** we don't need this */ |
77 | /** we don't need this */ |
77 | char unused[8]; |
78 | char unused[8]; |
78 | 79 | ||
79 | /** TOC entries */ |
80 | /** TOC entries */ |
80 | toc_entry_t keys[MAX_TOC_ENTRIES]; |
81 | toc_entry_t keys[MAX_TOC_ENTRIES]; |
81 | } __attribute__ ((packed)) iosram_toc_t; |
82 | } __attribute__ ((packed)) iosram_toc_t; |
82 | 83 | ||
83 | /** |
84 | /** |
84 | * SGCN buffer header. It is placed at the very beginning of the SGCN |
85 | * SGCN buffer header. It is placed at the very beginning of the SGCN |
85 | * buffer. |
86 | * buffer. |
86 | */ |
87 | */ |
87 | typedef struct { |
88 | typedef struct { |
88 | /** hard-wired to "CON" */ |
89 | /** hard-wired to "CON" */ |
89 | char magic[SGCN_MAGIC_BYTES]; |
90 | char magic[SGCN_MAGIC_BYTES]; |
90 | 91 | ||
91 | /** we don't need this */ |
92 | /** we don't need this */ |
92 | char unused[8]; |
93 | char unused[8]; |
93 | 94 | ||
94 | /** offset within the SGCN buffer of the input buffer start */ |
95 | /** offset within the SGCN buffer of the input buffer start */ |
95 | uint32_t in_begin; |
96 | uint32_t in_begin; |
96 | 97 | ||
97 | /** offset within the SGCN buffer of the input buffer end */ |
98 | /** offset within the SGCN buffer of the input buffer end */ |
98 | uint32_t in_end; |
99 | uint32_t in_end; |
99 | 100 | ||
100 | /** offset within the SGCN buffer of the input buffer read pointer */ |
101 | /** offset within the SGCN buffer of the input buffer read pointer */ |
101 | uint32_t in_rdptr; |
102 | uint32_t in_rdptr; |
102 | 103 | ||
103 | /** offset within the SGCN buffer of the input buffer write pointer */ |
104 | /** offset within the SGCN buffer of the input buffer write pointer */ |
104 | uint32_t in_wrptr; |
105 | uint32_t in_wrptr; |
105 | 106 | ||
106 | /** offset within the SGCN buffer of the output buffer start */ |
107 | /** offset within the SGCN buffer of the output buffer start */ |
107 | uint32_t out_begin; |
108 | uint32_t out_begin; |
108 | 109 | ||
109 | /** offset within the SGCN buffer of the output buffer end */ |
110 | /** offset within the SGCN buffer of the output buffer end */ |
110 | uint32_t out_end; |
111 | uint32_t out_end; |
111 | 112 | ||
112 | /** offset within the SGCN buffer of the output buffer read pointer */ |
113 | /** offset within the SGCN buffer of the output buffer read pointer */ |
113 | uint32_t out_rdptr; |
114 | uint32_t out_rdptr; |
114 | 115 | ||
115 | /** offset within the SGCN buffer of the output buffer write pointer */ |
116 | /** offset within the SGCN buffer of the output buffer write pointer */ |
116 | uint32_t out_wrptr; |
117 | uint32_t out_wrptr; |
117 | } __attribute__ ((packed)) sgcn_buffer_header_t; |
118 | } __attribute__ ((packed)) sgcn_buffer_header_t; |
118 | 119 | ||
- | 120 | typedef struct { |
|
- | 121 | thread_t *thread; |
|
- | 122 | indev_t *srlnin; |
|
- | 123 | } sgcn_instance_t; |
|
- | 124 | ||
119 | void sgcn_grab(void); |
125 | extern void sgcn_grab(void); |
120 | void sgcn_release(void); |
126 | extern void sgcn_release(void); |
121 | indev_t *sgcnin_init(void); |
127 | extern sgcn_instance_t *sgcnin_init(void); |
- | 128 | extern void sgcnin_wire(sgcn_instance_t *, indev_t *); |
|
122 | void sgcnout_init(void); |
129 | extern void sgcnout_init(void); |
123 | 130 | ||
124 | #endif |
131 | #endif |
125 | 132 | ||
126 | /** @} |
133 | /** @} |
127 | */ |
134 | */ |
128 | 135 |