xref: /openbmc/linux/tools/firewire/nosy-dump.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __nosy_dump_h__
3 #define __nosy_dump_h__
4 
5 #define array_length(array) (sizeof(array) / sizeof(array[0]))
6 
7 #define ACK_NO_ACK   0x0
8 #define ACK_DONE(a)  ((a >> 2) == 0)
9 #define ACK_BUSY(a)  ((a >> 2) == 1)
10 #define ACK_ERROR(a) ((a >> 2) == 3)
11 
12 #include <stdint.h>
13 
14 struct phy_packet {
15 	uint32_t timestamp;
16 	union {
17 		struct {
18 			uint32_t zero:24;
19 			uint32_t phy_id:6;
20 			uint32_t identifier:2;
21 		} common, link_on;
22 
23 		struct {
24 			uint32_t zero:16;
25 			uint32_t gap_count:6;
26 			uint32_t set_gap_count:1;
27 			uint32_t set_root:1;
28 			uint32_t root_id:6;
29 			uint32_t identifier:2;
30 		} phy_config;
31 
32 		struct {
33 			uint32_t more_packets:1;
34 			uint32_t initiated_reset:1;
35 			uint32_t port2:2;
36 			uint32_t port1:2;
37 			uint32_t port0:2;
38 			uint32_t power_class:3;
39 			uint32_t contender:1;
40 			uint32_t phy_delay:2;
41 			uint32_t phy_speed:2;
42 			uint32_t gap_count:6;
43 			uint32_t link_active:1;
44 			uint32_t extended:1;
45 			uint32_t phy_id:6;
46 			uint32_t identifier:2;
47 		} self_id;
48 
49 		struct {
50 			uint32_t more_packets:1;
51 			uint32_t reserved1:1;
52 			uint32_t porth:2;
53 			uint32_t portg:2;
54 			uint32_t portf:2;
55 			uint32_t porte:2;
56 			uint32_t portd:2;
57 			uint32_t portc:2;
58 			uint32_t portb:2;
59 			uint32_t porta:2;
60 			uint32_t reserved0:2;
61 			uint32_t sequence:3;
62 			uint32_t extended:1;
63 			uint32_t phy_id:6;
64 			uint32_t identifier:2;
65 		} ext_self_id;
66 	};
67 	uint32_t inverted;
68 	uint32_t ack;
69 };
70 
71 #define TCODE_PHY_PACKET 0x10
72 
73 #define PHY_PACKET_CONFIGURATION 0x00
74 #define PHY_PACKET_LINK_ON 0x01
75 #define PHY_PACKET_SELF_ID 0x02
76 
77 struct link_packet {
78 	uint32_t timestamp;
79 	union {
80 		struct {
81 			uint32_t priority:4;
82 			uint32_t tcode:4;
83 			uint32_t rt:2;
84 			uint32_t tlabel:6;
85 			uint32_t destination:16;
86 
87 			uint32_t offset_high:16;
88 			uint32_t source:16;
89 
90 			uint32_t offset_low;
91 		} common;
92 
93 		struct {
94 			uint32_t common[3];
95 			uint32_t crc;
96 		} read_quadlet;
97 
98 		struct {
99 			uint32_t common[3];
100 			uint32_t data;
101 			uint32_t crc;
102 		} read_quadlet_response;
103 
104 		struct {
105 			uint32_t common[3];
106 			uint32_t extended_tcode:16;
107 			uint32_t data_length:16;
108 			uint32_t crc;
109 		} read_block;
110 
111 		struct {
112 			uint32_t common[3];
113 			uint32_t extended_tcode:16;
114 			uint32_t data_length:16;
115 			uint32_t crc;
116 			uint32_t data[0];
117 			/* crc and ack follows. */
118 		} read_block_response;
119 
120 		struct {
121 			uint32_t common[3];
122 			uint32_t data;
123 			uint32_t crc;
124 		} write_quadlet;
125 
126 		struct {
127 			uint32_t common[3];
128 			uint32_t extended_tcode:16;
129 			uint32_t data_length:16;
130 			uint32_t crc;
131 			uint32_t data[0];
132 			/* crc and ack follows. */
133 		} write_block;
134 
135 		struct {
136 			uint32_t common[3];
137 			uint32_t crc;
138 		} write_response;
139 
140 		struct {
141 			uint32_t common[3];
142 			uint32_t data;
143 			uint32_t crc;
144 		} cycle_start;
145 
146 		struct {
147 			uint32_t sy:4;
148 			uint32_t tcode:4;
149 			uint32_t channel:6;
150 			uint32_t tag:2;
151 			uint32_t data_length:16;
152 
153 			uint32_t crc;
154 		} iso_data;
155 	};
156 };
157 
158 struct subaction {
159 	uint32_t ack;
160 	size_t length;
161 	struct list link;
162 	struct link_packet packet;
163 };
164 
165 struct link_transaction {
166 	int request_node, response_node, tlabel;
167 	struct subaction *request, *response;
168 	struct list request_list, response_list;
169 	struct list link;
170 };
171 
172 int decode_fcp(struct link_transaction *t);
173 
174 #endif /* __nosy_dump_h__ */
175