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1 | #include <linux/firewire-constants.h> |
2 | #include <stdio.h> |
3 | #include <stdlib.h> |
4 | |
5 | #include "list.h" |
6 | #include "nosy-dump.h" |
7 | |
8 | #define CSR_FCP_COMMAND 0xfffff0000b00ull |
9 | #define CSR_FCP_RESPONSE 0xfffff0000d00ull |
10 | |
11 | static const char * const ctype_names[] = { |
12 | [0x0] = "control", [0x8] = "not implemented", |
13 | [0x1] = "status", [0x9] = "accepted", |
14 | [0x2] = "specific inquiry", [0xa] = "rejected", |
15 | [0x3] = "notify", [0xb] = "in transition", |
16 | [0x4] = "general inquiry", [0xc] = "stable", |
17 | [0x5] = "(reserved 0x05)", [0xd] = "changed", |
18 | [0x6] = "(reserved 0x06)", [0xe] = "(reserved 0x0e)", |
19 | [0x7] = "(reserved 0x07)", [0xf] = "interim", |
20 | }; |
21 | |
22 | static const char * const subunit_type_names[] = { |
23 | [0x00] = "monitor", [0x10] = "(reserved 0x10)", |
24 | [0x01] = "audio", [0x11] = "(reserved 0x11)", |
25 | [0x02] = "printer", [0x12] = "(reserved 0x12)", |
26 | [0x03] = "disc", [0x13] = "(reserved 0x13)", |
27 | [0x04] = "tape recorder/player",[0x14] = "(reserved 0x14)", |
28 | [0x05] = "tuner", [0x15] = "(reserved 0x15)", |
29 | [0x06] = "ca", [0x16] = "(reserved 0x16)", |
30 | [0x07] = "camera", [0x17] = "(reserved 0x17)", |
31 | [0x08] = "(reserved 0x08)", [0x18] = "(reserved 0x18)", |
32 | [0x09] = "panel", [0x19] = "(reserved 0x19)", |
33 | [0x0a] = "bulletin board", [0x1a] = "(reserved 0x1a)", |
34 | [0x0b] = "camera storage", [0x1b] = "(reserved 0x1b)", |
35 | [0x0c] = "(reserved 0x0c)", [0x1c] = "vendor unique", |
36 | [0x0d] = "(reserved 0x0d)", [0x1d] = "all subunit types", |
37 | [0x0e] = "(reserved 0x0e)", [0x1e] = "subunit_type extended to next byte", |
38 | [0x0f] = "(reserved 0x0f)", [0x1f] = "unit", |
39 | }; |
40 | |
41 | struct avc_enum { |
42 | int value; |
43 | const char *name; |
44 | }; |
45 | |
46 | struct avc_field { |
47 | const char *name; /* Short name for field. */ |
48 | int offset; /* Location of field, specified in bits; */ |
49 | /* negative means from end of packet. */ |
50 | int width; /* Width of field, 0 means use data_length. */ |
51 | struct avc_enum *names; |
52 | }; |
53 | |
54 | struct avc_opcode_info { |
55 | const char *name; |
56 | struct avc_field fields[8]; |
57 | }; |
58 | |
59 | struct avc_enum power_field_names[] = { |
60 | { 0x70, "on" }, |
61 | { 0x60, "off" }, |
62 | { } |
63 | }; |
64 | |
65 | static const struct avc_opcode_info opcode_info[256] = { |
66 | |
67 | /* TA Document 1999026 */ |
68 | /* AV/C Digital Interface Command Set General Specification 4.0 */ |
69 | [0xb2] = { "power", { |
70 | { "state", 0, 8, power_field_names } |
71 | } |
72 | }, |
73 | [0x30] = { "unit info", { |
74 | { "foo", 0, 8 }, |
75 | { "unit_type", 8, 5 }, |
76 | { "unit", 13, 3 }, |
77 | { "company id", 16, 24 }, |
78 | } |
79 | }, |
80 | [0x31] = { "subunit info" }, |
81 | [0x01] = { "reserve" }, |
82 | [0xb0] = { "version" }, |
83 | [0x00] = { "vendor dependent" }, |
84 | [0x02] = { "plug info" }, |
85 | [0x12] = { "channel usage" }, |
86 | [0x24] = { "connect" }, |
87 | [0x20] = { "connect av" }, |
88 | [0x22] = { "connections" }, |
89 | [0x11] = { "digital input" }, |
90 | [0x10] = { "digital output" }, |
91 | [0x25] = { "disconnect" }, |
92 | [0x21] = { "disconnect av" }, |
93 | [0x19] = { "input plug signal format" }, |
94 | [0x18] = { "output plug signal format" }, |
95 | [0x1f] = { "general bus setup" }, |
96 | |
97 | /* TA Document 1999025 */ |
98 | /* AV/C Descriptor Mechanism Specification Version 1.0 */ |
99 | [0x0c] = { "create descriptor" }, |
100 | [0x08] = { "open descriptor" }, |
101 | [0x09] = { "read descriptor" }, |
102 | [0x0a] = { "write descriptor" }, |
103 | [0x05] = { "open info block" }, |
104 | [0x06] = { "read info block" }, |
105 | [0x07] = { "write info block" }, |
106 | [0x0b] = { "search descriptor" }, |
107 | [0x0d] = { "object number select" }, |
108 | |
109 | /* TA Document 1999015 */ |
110 | /* AV/C Command Set for Rate Control of Isochronous Data Flow 1.0 */ |
111 | [0xb3] = { "rate", { |
112 | { "subfunction", 0, 8 }, |
113 | { "result", 8, 8 }, |
114 | { "plug_type", 16, 8 }, |
115 | { "plug_id", 16, 8 }, |
116 | } |
117 | }, |
118 | |
119 | /* TA Document 1999008 */ |
120 | /* AV/C Audio Subunit Specification 1.0 */ |
121 | [0xb8] = { "function block" }, |
122 | |
123 | /* TA Document 2001001 */ |
124 | /* AV/C Panel Subunit Specification 1.1 */ |
125 | [0x7d] = { "gui update" }, |
126 | [0x7e] = { "push gui data" }, |
127 | [0x7f] = { "user action" }, |
128 | [0x7c] = { "pass through" }, |
129 | |
130 | /* */ |
131 | [0x26] = { "asynchronous connection" }, |
132 | }; |
133 | |
134 | struct avc_frame { |
135 | uint32_t operand0:8; |
136 | uint32_t opcode:8; |
137 | uint32_t subunit_id:3; |
138 | uint32_t subunit_type:5; |
139 | uint32_t ctype:4; |
140 | uint32_t cts:4; |
141 | }; |
142 | |
143 | static void |
144 | decode_avc(struct link_transaction *t) |
145 | { |
146 | struct avc_frame *frame = |
147 | (struct avc_frame *) t->request->packet.write_block.data; |
148 | const struct avc_opcode_info *info; |
149 | const char *name; |
150 | char buffer[32]; |
151 | int i; |
152 | |
153 | info = &opcode_info[frame->opcode]; |
154 | if (info->name == NULL) { |
155 | snprintf(buffer, sizeof(buffer), |
156 | "(unknown opcode 0x%02x)", frame->opcode); |
157 | name = buffer; |
158 | } else { |
159 | name = info->name; |
160 | } |
161 | |
162 | printf("av/c %s, subunit_type=%s, subunit_id=%d, opcode=%s", |
163 | ctype_names[frame->ctype], subunit_type_names[frame->subunit_type], |
164 | frame->subunit_id, name); |
165 | |
166 | for (i = 0; info->fields[i].name != NULL; i++) |
167 | printf(", %s", info->fields[i].name); |
168 | |
169 | printf("\n"); |
170 | } |
171 | |
172 | int |
173 | decode_fcp(struct link_transaction *t) |
174 | { |
175 | struct avc_frame *frame = |
176 | (struct avc_frame *) t->request->packet.write_block.data; |
177 | unsigned long long offset = |
178 | ((unsigned long long) t->request->packet.common.offset_high << 32) | |
179 | t->request->packet.common.offset_low; |
180 | |
181 | if (t->request->packet.common.tcode != TCODE_WRITE_BLOCK_REQUEST) |
182 | return 0; |
183 | |
184 | if (offset == CSR_FCP_COMMAND || offset == CSR_FCP_RESPONSE) { |
185 | switch (frame->cts) { |
186 | case 0x00: |
187 | decode_avc(t); |
188 | break; |
189 | case 0x01: |
190 | printf("cal fcp frame (cts=0x01)\n"); |
191 | break; |
192 | case 0x02: |
193 | printf("ehs fcp frame (cts=0x02)\n"); |
194 | break; |
195 | case 0x03: |
196 | printf("havi fcp frame (cts=0x03)\n"); |
197 | break; |
198 | case 0x0e: |
199 | printf("vendor specific fcp frame (cts=0x0e)\n"); |
200 | break; |
201 | case 0x0f: |
202 | printf("extended cts\n"); |
203 | break; |
204 | default: |
205 | printf("reserved fcp frame (ctx=0x%02x)\n", frame->cts); |
206 | break; |
207 | } |
208 | return 1; |
209 | } |
210 | |
211 | return 0; |
212 | } |
213 | |
214 |
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