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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * IBM ASM Service Processor Device Driver4 *5 * Copyright (C) IBM Corporation, 20046 *7 * Author: Max Asböck <amax@us.ibm.com>8 */9 10#ifndef __DOT_COMMAND_H__11#define __DOT_COMMAND_H__12 13/*14 * dot commands are the protocol used to communicate with the service15 * processor.16 * They consist of header, a command of variable length and data of17 * variable length.18 */19 20/* dot command types */21#define sp_write 022#define sp_write_next 123#define sp_read 224#define sp_read_next 325#define sp_command_response 426#define sp_event 527#define sp_heartbeat 628 29#pragma pack(1)30struct dot_command_header {31 u8 type;32 u8 command_size;33 u16 data_size;34 u8 status;35 u8 reserved;36};37#pragma pack()38 39static inline size_t get_dot_command_size(void *buffer)40{41 struct dot_command_header *cmd = (struct dot_command_header *)buffer;42 return sizeof(struct dot_command_header) + cmd->command_size + cmd->data_size;43}44 45static inline unsigned int get_dot_command_timeout(void *buffer)46{47 struct dot_command_header *header = (struct dot_command_header *)buffer;48 unsigned char *cmd = buffer + sizeof(struct dot_command_header);49 50 /* dot commands 6.3.1, 7.1 and 8.x need a longer timeout */51 52 if (header->command_size == 3) {53 if ((cmd[0] == 6) && (cmd[1] == 3) && (cmd[2] == 1))54 return IBMASM_CMD_TIMEOUT_EXTRA;55 } else if (header->command_size == 2) {56 if ((cmd[0] == 7) && (cmd[1] == 1))57 return IBMASM_CMD_TIMEOUT_EXTRA;58 if (cmd[0] == 8)59 return IBMASM_CMD_TIMEOUT_EXTRA;60 }61 return IBMASM_CMD_TIMEOUT_NORMAL;62}63 64#endif /* __DOT_COMMAND_H__ */65