1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * IBM ASM Service Processor Device Driver 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) IBM Corporation, 2004 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Author: Max Asböck <amax@us.ibm.com> 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef __DOT_COMMAND_H__ 11*4882a593Smuzhiyun #define __DOT_COMMAND_H__ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /* 14*4882a593Smuzhiyun * dot commands are the protocol used to communicate with the service 15*4882a593Smuzhiyun * processor. 16*4882a593Smuzhiyun * They consist of header, a command of variable length and data of 17*4882a593Smuzhiyun * variable length. 18*4882a593Smuzhiyun */ 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* dot command types */ 21*4882a593Smuzhiyun #define sp_write 0 22*4882a593Smuzhiyun #define sp_write_next 1 23*4882a593Smuzhiyun #define sp_read 2 24*4882a593Smuzhiyun #define sp_read_next 3 25*4882a593Smuzhiyun #define sp_command_response 4 26*4882a593Smuzhiyun #define sp_event 5 27*4882a593Smuzhiyun #define sp_heartbeat 6 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun #pragma pack(1) 30*4882a593Smuzhiyun struct dot_command_header { 31*4882a593Smuzhiyun u8 type; 32*4882a593Smuzhiyun u8 command_size; 33*4882a593Smuzhiyun u16 data_size; 34*4882a593Smuzhiyun u8 status; 35*4882a593Smuzhiyun u8 reserved; 36*4882a593Smuzhiyun }; 37*4882a593Smuzhiyun #pragma pack() 38*4882a593Smuzhiyun get_dot_command_size(void * buffer)39*4882a593Smuzhiyunstatic inline size_t get_dot_command_size(void *buffer) 40*4882a593Smuzhiyun { 41*4882a593Smuzhiyun struct dot_command_header *cmd = (struct dot_command_header *)buffer; 42*4882a593Smuzhiyun return sizeof(struct dot_command_header) + cmd->command_size + cmd->data_size; 43*4882a593Smuzhiyun } 44*4882a593Smuzhiyun get_dot_command_timeout(void * buffer)45*4882a593Smuzhiyunstatic inline unsigned int get_dot_command_timeout(void *buffer) 46*4882a593Smuzhiyun { 47*4882a593Smuzhiyun struct dot_command_header *header = (struct dot_command_header *)buffer; 48*4882a593Smuzhiyun unsigned char *cmd = buffer + sizeof(struct dot_command_header); 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun /* dot commands 6.3.1, 7.1 and 8.x need a longer timeout */ 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun if (header->command_size == 3) { 53*4882a593Smuzhiyun if ((cmd[0] == 6) && (cmd[1] == 3) && (cmd[2] == 1)) 54*4882a593Smuzhiyun return IBMASM_CMD_TIMEOUT_EXTRA; 55*4882a593Smuzhiyun } else if (header->command_size == 2) { 56*4882a593Smuzhiyun if ((cmd[0] == 7) && (cmd[1] == 1)) 57*4882a593Smuzhiyun return IBMASM_CMD_TIMEOUT_EXTRA; 58*4882a593Smuzhiyun if (cmd[0] == 8) 59*4882a593Smuzhiyun return IBMASM_CMD_TIMEOUT_EXTRA; 60*4882a593Smuzhiyun } 61*4882a593Smuzhiyun return IBMASM_CMD_TIMEOUT_NORMAL; 62*4882a593Smuzhiyun } 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun #endif /* __DOT_COMMAND_H__ */ 65