| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | * |
| 20 | * Author: Max Asböck <amax@us.ibm.com> |
| 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__ */ |