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