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1da177e4 LT |
1 | /* |
2 | * IBM ASM Service Processor Device Driver | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | * | |
18 | * Copyright (C) IBM Corporation, 2004 | |
19 | * | |
d36b6910 | 20 | * Author: Max Asböck <amax@us.ibm.com> |
1da177e4 LT |
21 | * |
22 | */ | |
23 | ||
24 | #ifndef __DOT_COMMAND_H__ | |
25 | #define __DOT_COMMAND_H__ | |
26 | ||
27 | /* | |
28 | * dot commands are the protocol used to communicate with the service | |
29 | * processor. | |
30 | * They consist of header, a command of variable length and data of | |
31 | * variable length. | |
32 | */ | |
33 | ||
34 | /* dot command types */ | |
35 | #define sp_write 0 | |
36 | #define sp_write_next 1 | |
37 | #define sp_read 2 | |
38 | #define sp_read_next 3 | |
39 | #define sp_command_response 4 | |
40 | #define sp_event 5 | |
41 | #define sp_heartbeat 6 | |
42 | ||
43 | #pragma pack(1) | |
44 | struct dot_command_header { | |
45 | u8 type; | |
46 | u8 command_size; | |
47 | u16 data_size; | |
48 | u8 status; | |
49 | u8 reserved; | |
50 | }; | |
51 | #pragma pack() | |
52 | ||
53 | static inline size_t get_dot_command_size(void *buffer) | |
54 | { | |
55 | struct dot_command_header *cmd = (struct dot_command_header *)buffer; | |
56 | return sizeof(struct dot_command_header) + cmd->command_size + cmd->data_size; | |
57 | } | |
58 | ||
59 | static inline unsigned int get_dot_command_timeout(void *buffer) | |
60 | { | |
61 | struct dot_command_header *header = (struct dot_command_header *)buffer; | |
62 | unsigned char *cmd = buffer + sizeof(struct dot_command_header); | |
63 | ||
64 | /* dot commands 6.3.1, 7.1 and 8.x need a longer timeout */ | |
65 | ||
66 | if (header->command_size == 3) { | |
67 | if ((cmd[0] == 6) && (cmd[1] == 3) && (cmd[2] == 1)) | |
68 | return IBMASM_CMD_TIMEOUT_EXTRA; | |
69 | } else if (header->command_size == 2) { | |
70 | if ((cmd[0] == 7) && (cmd[1] == 1)) | |
71 | return IBMASM_CMD_TIMEOUT_EXTRA; | |
72 | if (cmd[0] == 8) | |
73 | return IBMASM_CMD_TIMEOUT_EXTRA; | |
74 | } | |
75 | return IBMASM_CMD_TIMEOUT_NORMAL; | |
76 | } | |
77 | ||
78 | #endif /* __DOT_COMMAND_H__ */ |