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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
83ef7c75 | 2 | #include <linux/firewire-constants.h> |
9f6d3c4b | 3 | #include <stdio.h> |
83ef7c75 SR |
4 | #include <stdlib.h> |
5 | ||
9f6d3c4b SR |
6 | #include "list.h" |
7 | #include "nosy-dump.h" | |
8 | ||
9 | #define CSR_FCP_COMMAND 0xfffff0000b00ull | |
10 | #define CSR_FCP_RESPONSE 0xfffff0000d00ull | |
11 | ||
92c16f7e SR |
12 | static const char * const ctype_names[] = { |
13 | [0x0] = "control", [0x8] = "not implemented", | |
14 | [0x1] = "status", [0x9] = "accepted", | |
15 | [0x2] = "specific inquiry", [0xa] = "rejected", | |
16 | [0x3] = "notify", [0xb] = "in transition", | |
17 | [0x4] = "general inquiry", [0xc] = "stable", | |
18 | [0x5] = "(reserved 0x05)", [0xd] = "changed", | |
19 | [0x6] = "(reserved 0x06)", [0xe] = "(reserved 0x0e)", | |
20 | [0x7] = "(reserved 0x07)", [0xf] = "interim", | |
9f6d3c4b SR |
21 | }; |
22 | ||
92c16f7e SR |
23 | static const char * const subunit_type_names[] = { |
24 | [0x00] = "monitor", [0x10] = "(reserved 0x10)", | |
25 | [0x01] = "audio", [0x11] = "(reserved 0x11)", | |
26 | [0x02] = "printer", [0x12] = "(reserved 0x12)", | |
27 | [0x03] = "disc", [0x13] = "(reserved 0x13)", | |
28 | [0x04] = "tape recorder/player",[0x14] = "(reserved 0x14)", | |
29 | [0x05] = "tuner", [0x15] = "(reserved 0x15)", | |
30 | [0x06] = "ca", [0x16] = "(reserved 0x16)", | |
31 | [0x07] = "camera", [0x17] = "(reserved 0x17)", | |
32 | [0x08] = "(reserved 0x08)", [0x18] = "(reserved 0x18)", | |
33 | [0x09] = "panel", [0x19] = "(reserved 0x19)", | |
34 | [0x0a] = "bulletin board", [0x1a] = "(reserved 0x1a)", | |
35 | [0x0b] = "camera storage", [0x1b] = "(reserved 0x1b)", | |
36 | [0x0c] = "(reserved 0x0c)", [0x1c] = "vendor unique", | |
37 | [0x0d] = "(reserved 0x0d)", [0x1d] = "all subunit types", | |
38 | [0x0e] = "(reserved 0x0e)", [0x1e] = "subunit_type extended to next byte", | |
39 | [0x0f] = "(reserved 0x0f)", [0x1f] = "unit", | |
9f6d3c4b SR |
40 | }; |
41 | ||
42 | struct avc_enum { | |
92c16f7e SR |
43 | int value; |
44 | const char *name; | |
9f6d3c4b SR |
45 | }; |
46 | ||
47 | struct avc_field { | |
92c16f7e SR |
48 | const char *name; /* Short name for field. */ |
49 | int offset; /* Location of field, specified in bits; */ | |
50 | /* negative means from end of packet. */ | |
51 | int width; /* Width of field, 0 means use data_length. */ | |
52 | struct avc_enum *names; | |
9f6d3c4b SR |
53 | }; |
54 | ||
55 | struct avc_opcode_info { | |
92c16f7e SR |
56 | const char *name; |
57 | struct avc_field fields[8]; | |
9f6d3c4b SR |
58 | }; |
59 | ||
60 | struct avc_enum power_field_names[] = { | |
92c16f7e SR |
61 | { 0x70, "on" }, |
62 | { 0x60, "off" }, | |
63 | { } | |
9f6d3c4b SR |
64 | }; |
65 | ||
66 | static const struct avc_opcode_info opcode_info[256] = { | |
67 | ||
92c16f7e SR |
68 | /* TA Document 1999026 */ |
69 | /* AV/C Digital Interface Command Set General Specification 4.0 */ | |
70 | [0xb2] = { "power", { | |
71 | { "state", 0, 8, power_field_names } | |
72 | } | |
73 | }, | |
74 | [0x30] = { "unit info", { | |
75 | { "foo", 0, 8 }, | |
76 | { "unit_type", 8, 5 }, | |
77 | { "unit", 13, 3 }, | |
78 | { "company id", 16, 24 }, | |
79 | } | |
80 | }, | |
81 | [0x31] = { "subunit info" }, | |
82 | [0x01] = { "reserve" }, | |
83 | [0xb0] = { "version" }, | |
84 | [0x00] = { "vendor dependent" }, | |
85 | [0x02] = { "plug info" }, | |
86 | [0x12] = { "channel usage" }, | |
87 | [0x24] = { "connect" }, | |
88 | [0x20] = { "connect av" }, | |
89 | [0x22] = { "connections" }, | |
90 | [0x11] = { "digital input" }, | |
91 | [0x10] = { "digital output" }, | |
92 | [0x25] = { "disconnect" }, | |
93 | [0x21] = { "disconnect av" }, | |
94 | [0x19] = { "input plug signal format" }, | |
95 | [0x18] = { "output plug signal format" }, | |
96 | [0x1f] = { "general bus setup" }, | |
97 | ||
98 | /* TA Document 1999025 */ | |
99 | /* AV/C Descriptor Mechanism Specification Version 1.0 */ | |
100 | [0x0c] = { "create descriptor" }, | |
101 | [0x08] = { "open descriptor" }, | |
102 | [0x09] = { "read descriptor" }, | |
103 | [0x0a] = { "write descriptor" }, | |
104 | [0x05] = { "open info block" }, | |
105 | [0x06] = { "read info block" }, | |
106 | [0x07] = { "write info block" }, | |
107 | [0x0b] = { "search descriptor" }, | |
108 | [0x0d] = { "object number select" }, | |
109 | ||
110 | /* TA Document 1999015 */ | |
111 | /* AV/C Command Set for Rate Control of Isochronous Data Flow 1.0 */ | |
112 | [0xb3] = { "rate", { | |
113 | { "subfunction", 0, 8 }, | |
114 | { "result", 8, 8 }, | |
115 | { "plug_type", 16, 8 }, | |
116 | { "plug_id", 16, 8 }, | |
117 | } | |
118 | }, | |
119 | ||
120 | /* TA Document 1999008 */ | |
121 | /* AV/C Audio Subunit Specification 1.0 */ | |
122 | [0xb8] = { "function block" }, | |
123 | ||
124 | /* TA Document 2001001 */ | |
125 | /* AV/C Panel Subunit Specification 1.1 */ | |
126 | [0x7d] = { "gui update" }, | |
127 | [0x7e] = { "push gui data" }, | |
128 | [0x7f] = { "user action" }, | |
129 | [0x7c] = { "pass through" }, | |
130 | ||
131 | /* */ | |
132 | [0x26] = { "asynchronous connection" }, | |
9f6d3c4b SR |
133 | }; |
134 | ||
135 | struct avc_frame { | |
92c16f7e SR |
136 | uint32_t operand0:8; |
137 | uint32_t opcode:8; | |
138 | uint32_t subunit_id:3; | |
139 | uint32_t subunit_type:5; | |
140 | uint32_t ctype:4; | |
141 | uint32_t cts:4; | |
9f6d3c4b SR |
142 | }; |
143 | ||
144 | static void | |
145 | decode_avc(struct link_transaction *t) | |
146 | { | |
92c16f7e SR |
147 | struct avc_frame *frame = |
148 | (struct avc_frame *) t->request->packet.write_block.data; | |
149 | const struct avc_opcode_info *info; | |
150 | const char *name; | |
151 | char buffer[32]; | |
152 | int i; | |
153 | ||
154 | info = &opcode_info[frame->opcode]; | |
155 | if (info->name == NULL) { | |
156 | snprintf(buffer, sizeof(buffer), | |
157 | "(unknown opcode 0x%02x)", frame->opcode); | |
158 | name = buffer; | |
159 | } else { | |
160 | name = info->name; | |
161 | } | |
9f6d3c4b | 162 | |
92c16f7e SR |
163 | printf("av/c %s, subunit_type=%s, subunit_id=%d, opcode=%s", |
164 | ctype_names[frame->ctype], subunit_type_names[frame->subunit_type], | |
165 | frame->subunit_id, name); | |
166 | ||
167 | for (i = 0; info->fields[i].name != NULL; i++) | |
168 | printf(", %s", info->fields[i].name); | |
169 | ||
170 | printf("\n"); | |
171 | } | |
9f6d3c4b SR |
172 | |
173 | int | |
174 | decode_fcp(struct link_transaction *t) | |
175 | { | |
92c16f7e SR |
176 | struct avc_frame *frame = |
177 | (struct avc_frame *) t->request->packet.write_block.data; | |
178 | unsigned long long offset = | |
179 | ((unsigned long long) t->request->packet.common.offset_high << 32) | | |
180 | t->request->packet.common.offset_low; | |
181 | ||
83ef7c75 | 182 | if (t->request->packet.common.tcode != TCODE_WRITE_BLOCK_REQUEST) |
92c16f7e SR |
183 | return 0; |
184 | ||
185 | if (offset == CSR_FCP_COMMAND || offset == CSR_FCP_RESPONSE) { | |
186 | switch (frame->cts) { | |
187 | case 0x00: | |
188 | decode_avc(t); | |
189 | break; | |
190 | case 0x01: | |
191 | printf("cal fcp frame (cts=0x01)\n"); | |
192 | break; | |
193 | case 0x02: | |
194 | printf("ehs fcp frame (cts=0x02)\n"); | |
195 | break; | |
196 | case 0x03: | |
197 | printf("havi fcp frame (cts=0x03)\n"); | |
198 | break; | |
199 | case 0x0e: | |
200 | printf("vendor specific fcp frame (cts=0x0e)\n"); | |
201 | break; | |
202 | case 0x0f: | |
203 | printf("extended cts\n"); | |
204 | break; | |
205 | default: | |
206 | printf("reserved fcp frame (ctx=0x%02x)\n", frame->cts); | |
207 | break; | |
208 | } | |
209 | return 1; | |
9f6d3c4b | 210 | } |
9f6d3c4b | 211 | |
92c16f7e | 212 | return 0; |
9f6d3c4b SR |
213 | } |
214 |