/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * IBM ASM Service Processor Device Driver * * Copyright (C) IBM Corporation, 2004 * * Author: Max Asböck <amax@us.ibm.com> */ #ifndef __DOT_COMMAND_H__ #define __DOT_COMMAND_H__ /* * dot commands are the protocol used to communicate with the service * processor. * They consist of header, a command of variable length and data of * variable length. */ /* dot command types */ #define sp_write 0 #define sp_write_next 1 #define sp_read 2 #define sp_read_next 3 #define sp_command_response 4 #define sp_event 5 #define sp_heartbeat 6 #pragma pack(1) struct dot_command_header { u8 type; u8 command_size; u16 data_size; u8 status; u8 reserved; }; #pragma pack() static inline size_t get_dot_command_size(void *buffer) { struct dot_command_header *cmd = (struct dot_command_header *)buffer; return sizeof(struct dot_command_header) + cmd->command_size + cmd->data_size; } static inline unsigned int get_dot_command_timeout(void *buffer) { struct dot_command_header *header = (struct dot_command_header *)buffer; unsigned char *cmd = buffer + sizeof(struct dot_command_header); /* dot commands 6.3.1, 7.1 and 8.x need a longer timeout */ if (header->command_size == 3) { if ((cmd[0] == 6) && (cmd[1] == 3) && (cmd[2] == 1)) return IBMASM_CMD_TIMEOUT_EXTRA; } else if (header->command_size == 2) { if ((cmd[0] == 7) && (cmd[1] == 1)) return IBMASM_CMD_TIMEOUT_EXTRA; if (cmd[0] == 8) return IBMASM_CMD_TIMEOUT_EXTRA; } return IBMASM_CMD_TIMEOUT_NORMAL; } #endif /* __DOT_COMMAND_H__ */