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1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | /* |
3 | * IBM ASM Service Processor Device Driver | |
4 | * | |
1da177e4 LT |
5 | * Copyright (C) IBM Corporation, 2004 |
6 | * | |
d36b6910 | 7 | * Author: Max Asböck <amax@us.ibm.com> |
1da177e4 LT |
8 | */ |
9 | ||
10 | #ifndef __DOT_COMMAND_H__ | |
11 | #define __DOT_COMMAND_H__ | |
12 | ||
13 | /* | |
14 | * dot commands are the protocol used to communicate with the service | |
15 | * processor. | |
16 | * They consist of header, a command of variable length and data of | |
17 | * variable length. | |
18 | */ | |
19 | ||
20 | /* dot command types */ | |
21 | #define sp_write 0 | |
22 | #define sp_write_next 1 | |
23 | #define sp_read 2 | |
24 | #define sp_read_next 3 | |
25 | #define sp_command_response 4 | |
26 | #define sp_event 5 | |
27 | #define sp_heartbeat 6 | |
28 | ||
29 | #pragma pack(1) | |
30 | struct dot_command_header { | |
31 | u8 type; | |
32 | u8 command_size; | |
33 | u16 data_size; | |
34 | u8 status; | |
35 | u8 reserved; | |
36 | }; | |
37 | #pragma pack() | |
38 | ||
39 | static inline size_t get_dot_command_size(void *buffer) | |
40 | { | |
41 | struct dot_command_header *cmd = (struct dot_command_header *)buffer; | |
42 | return sizeof(struct dot_command_header) + cmd->command_size + cmd->data_size; | |
43 | } | |
44 | ||
45 | static inline unsigned int get_dot_command_timeout(void *buffer) | |
46 | { | |
47 | struct dot_command_header *header = (struct dot_command_header *)buffer; | |
48 | unsigned char *cmd = buffer + sizeof(struct dot_command_header); | |
49 | ||
50 | /* dot commands 6.3.1, 7.1 and 8.x need a longer timeout */ | |
51 | ||
52 | if (header->command_size == 3) { | |
53 | if ((cmd[0] == 6) && (cmd[1] == 3) && (cmd[2] == 1)) | |
54 | return IBMASM_CMD_TIMEOUT_EXTRA; | |
55 | } else if (header->command_size == 2) { | |
56 | if ((cmd[0] == 7) && (cmd[1] == 1)) | |
57 | return IBMASM_CMD_TIMEOUT_EXTRA; | |
58 | if (cmd[0] == 8) | |
59 | return IBMASM_CMD_TIMEOUT_EXTRA; | |
60 | } | |
61 | return IBMASM_CMD_TIMEOUT_NORMAL; | |
62 | } | |
63 | ||
64 | #endif /* __DOT_COMMAND_H__ */ |