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__ */ 79